CN109672264B - Textile equipment, power supply circuit thereof and flat knitting machine equipment - Google Patents
Textile equipment, power supply circuit thereof and flat knitting machine equipment Download PDFInfo
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- CN109672264B CN109672264B CN201811489447.4A CN201811489447A CN109672264B CN 109672264 B CN109672264 B CN 109672264B CN 201811489447 A CN201811489447 A CN 201811489447A CN 109672264 B CN109672264 B CN 109672264B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Abstract
The application discloses textile equipment, a power supply circuit of the textile equipment and flat knitting machine equipment, wherein the flat knitting machine equipment comprises servo equipment and main control equipment, the power supply circuit comprises a battery power supply circuit, a switching circuit and at least one control chip, the battery power supply circuit at least comprises a battery and a DC/DC boost converter, the battery is directly connected with the DC/DC boost converter, the DC/DC boost converter is directly connected with the main control equipment, the DC/DC boost converter is directly connected with the switching circuit, the switching circuit is directly connected with the servo equipment, and the control chip is connected with the DC/DC boost converter and the switching circuit and used for detecting the working state of the power supply circuit; when the working state is abnormal, the battery supplies power to the main control equipment through the DC/DC boost converter, and the control chip enables the battery to supply power to the servo equipment through the DC/DC boost converter by controlling the switching circuit. In this way, the circuit loss can be reduced and the utilization efficiency of the battery electric energy can be improved.
Description
Technical Field
The application relates to the field of spinning, in particular to spinning equipment, a power supply circuit of the spinning equipment and flat knitting machine equipment.
Background
The flat knitting machine is a device commonly used in the textile field in the society at present, and a power supply system of the flat knitting machine is added with the function of uninterrupted power supply due to the increasing demand of social production and the instability of a power grid.
At present, a UPS module which is commonly used in the market is added at the front end of the alternating voltage input of the flat knitting machine system, when the input voltage of a power grid is abnormal, a storage battery in the UPS module needs to output power supply voltage through a multilayer converter to supply power to flat knitting machine equipment, the working power of a circuit is increased, the capacity requirement of the UPS is high, the cost is improved, and the electric energy utilization rate is reduced.
Disclosure of Invention
The application provides a textile equipment and power supply circuit, flat-bed machine equipment thereof to solve among the prior art power supply circuit electric energy loss too big, electric energy utilization rate is low and the higher problem of cost.
In order to solve the above technical problem, the present application provides a power supply circuit for supplying power to a flat knitting machine, the flat knitting machine equipment comprises servo equipment and main control equipment, the power supply circuit comprises a battery power supply circuit, a switching circuit and at least one control chip, the battery power supply circuit at least comprises a battery and a DC/DC boost converter, a first output end of the battery is directly connected with an input end of the DC/DC boost converter, the first output terminal of the DC/DC boost converter is directly connected to the master device, the second output terminal of the DC/DC boost converter is directly connected to the first terminal of the switching circuit, the second end of the switching circuit is directly connected with the servo equipment, and the control chip is connected with the DC/DC boost converter and the switching circuit and is used for detecting the working state of the power supply circuit; when the control chip detects that the working state is abnormal, the battery supplies power to the main control equipment through the DC/DC boost converter, and the control chip controls the switching circuit to connect the DC/DC boost converter with the servo equipment so that the battery supplies power to the servo equipment through the DC/DC boost converter.
In order to solve the technical problem, the present application provides a flat knitting machine device, which includes a servo device, a main control device, and a motor device, wherein the servo device, the main control device, and the motor device are all coupled to a power supply circuit, and are powered by the power supply circuit, and the power supply circuit is the above power supply circuit.
In order to solve the technical problem, the application provides a textile device, the textile device comprises the power supply circuit and the flat knitting machine device, and the power supply circuit supplies power to the flat knitting machine device.
The beneficial effects of the embodiment of the application are that: different from the prior art, the power supply circuit in the embodiment of the application is used for supplying power to flat knitting machine equipment, the flat knitting machine equipment comprises servo equipment and main control equipment, the power supply circuit comprises a battery power supply circuit, a switching circuit and at least one control chip, the battery power supply circuit at least comprises a battery and a DC/DC boost converter, a first output end of the battery is directly connected with an input end of the DC/DC boost converter, a first output end of the DC/DC boost converter is directly connected with the main control equipment, a second output end of the DC/DC boost converter is directly connected with a first end of the switching circuit, a second end of the switching circuit is directly connected with the servo equipment, and the control chip is coupled with the DC/DC boost converter and the switching circuit and used for detecting the working state of; when the control chip detects that the working state is abnormal, the battery supplies power to the main control equipment through the DC/DC boost converter, and the control chip controls the switching circuit to connect the DC/DC boost converter with the servo equipment so that the battery supplies power to the servo equipment through the DC/DC boost converter. In this way, the working state of the power supply circuit can be judged through the control chip, when the working state of the power supply circuit is abnormal, the battery directly supplies power to the main control equipment through the DC/DC boost converter, and directly supplies power to the servo equipment through the switching circuit, and a traditional UPS module with multi-level voltage conversion is not needed to be adopted to supply power to the flat knitting machine equipment, so that multi-level change of voltage is not needed, the circuit loss and the hardware cost of the power supply system can be reduced, and the utilization efficiency of the electric energy of the battery is improved; the textile equipment using the power supply circuit reduces unnecessary loss in the production process, and improves the reliability and stability of production.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a prior art power supply system;
FIG. 2 is a schematic diagram of an embodiment of a power supply circuit of the present application;
FIG. 3 is a detailed circuit diagram of another embodiment of the power supply circuit of the present application;
fig. 4 is a schematic structural diagram of a commercial power supply circuit in the power supply circuit of the embodiment of fig. 3;
FIG. 5 is a voltage waveform schematic of the power supply circuit of the embodiment of FIG. 3;
FIG. 6 is a schematic circuit diagram of another embodiment of the power supply circuit of the present application;
FIG. 7 is a functional control diagram of a second control chip in the power supply circuit of the embodiment of FIG. 6;
FIG. 8 is a schematic diagram of the voltage waveforms of the fault protection circuit in the power supply circuit of the embodiment of FIG. 6;
FIG. 9 is a schematic structural diagram of a first control chip in the power supply circuit of the embodiment of FIG. 6;
FIG. 10 is a schematic diagram of the structure of one embodiment of the flat knitting machine apparatus of the present application;
fig. 11 is a schematic structural diagram of an embodiment of the textile equipment of the present application.
Detailed Description
The flat knitting machine is a device commonly used in the field of textile, and due to the increasing demand of social production and the instability of a power grid, a power supply system of the flat knitting machine is added with the function of uninterrupted power supply. At present, a UPS module (as shown in figure 1) which is commonly used in the market is added at the front end of the alternating voltage input of the flat knitting machine system in the market, when the voltage of a power grid is abnormal, a storage battery in the UPS module needs to be subjected to DC/DC boost conversion and DC/AC conversion firstly, and alternating voltage is output to replace the power supply of the power grid.
In order to solve the problems of overlarge electric energy loss of a battery, low electric energy utilization rate and high cost of a power supply circuit in the prior art, the power supply circuit is used for supplying power to flat knitting machine equipment, is embedded into an original flat knitting machine power supply system and is completely compatible with the flat knitting machine power supply system so as to achieve the purpose of directly and effectively utilizing the electric energy of the battery, and the power supply circuit does not need to be converted for many times, reduces the circuit loss, improves the electric energy utilization efficiency of the battery, and reduces the cost and the weight of an uninterrupted power supply system of the flat knitting machine.
In order to make those skilled in the art better understand the technical solution of the present application, a power supply circuit provided by the present invention is described in further detail below with reference to the accompanying drawings and the detailed description.
Referring to fig. 2, fig. 2 is a schematic structural diagram of an embodiment of a power supply circuit of the present application, the power supply circuit 100 of the present embodiment is used for supplying power to a flat knitting machine 200, the flat knitting machine 200 includes a servo device 230 and a main control device 210, the power supply circuit 100 includes a battery power supply circuit 110, a switching circuit 130 and at least one control chip 300, the battery power supply circuit 120 at least includes a battery 121 and a DC/DC boost converter 122, a first output terminal of the battery 121 is directly connected to an input terminal of the DC/DC boost converter 122, a first output terminal of the DC/DC boost converter 122 is directly connected to the main control device 210, a second output terminal of the DC/DC boost converter 122 is directly connected to a first terminal of the switching circuit 130, a second terminal of the switching circuit 130 is directly connected to the servo device 230, the control chip 300 is connected to the DC/DC boost converter, for detecting the operating state of the power supply circuit 100; when the control chip 300 detects that the operating state is abnormal, the battery 121 supplies power to the main control device 210 through the DC/DC boost converter 122, and the control chip 300 controls the switching circuit 130 to connect the DC/DC boost converter 122 with the servo device 230, so that the battery 121 supplies power to the servo device 230 through the DC/DC boost converter 122.
A first output end of the battery 121 outputs a first direct current voltage, and the first direct current voltage is boosted to a second direct current voltage through the DC/DC boost converter 122, where the first direct current voltage is a low-voltage direct current voltage, and the second direct current voltage is a high-voltage direct current voltage.
The second DC voltage output by the first terminal of the DC/DC boost converter 122 directly supplies power to the main control device 210, and the second DC voltage output by the second terminal supplies power to the servo device through the switching circuit.
Different from the prior art, the working state of the power supply circuit 100 can be judged by the control chip 300 in the embodiment, when the working state of the power supply circuit 100 is abnormal, the battery 121 directly supplies power to the main control device 210 through the DC/DC boost converter 122, and directly supplies power to the servo device 230 through the switching circuit 130, and a conventional UPS module with multi-level voltage conversion is not required to be adopted to supply power to the flat knitting machine device, so that multi-level voltage change is not required, thereby reducing circuit loss and hardware cost of a power supply system, and improving utilization efficiency of battery electric energy; the textile equipment using the power supply circuit reduces unnecessary loss in the production process, and improves the reliability and stability of production.
Optionally, the flat knitting machine device 200 of the present embodiment further includes a motor device 240, the power supply circuit 100 further includes a mains power supply circuit 110, the at least one control chip includes a first control chip 310, and the mains power supply circuit 110 is coupled to the switching circuit 130; when the first control chip 310 detects that the working state of the commercial power supply circuit 110 is normal, the first control chip 310 controls the switching circuit 130 to connect the commercial power supply circuit 110 with the servo device 230 and the motor device 240, and the first control chip 310 controls the DC/DC boost converter 122 to be electrically disconnected from the main control device 210.
The commercial power supply circuit 110 transmits a commercial power voltage, when the first control chip 310 detects that the commercial power voltage is greater than a first critical threshold and smaller than a second critical threshold, the commercial power voltage is normal, and at this time, the commercial power supply circuit 110 respectively supplies power to the servo device 230, the motor device 240 and the main control device 210; when the first control chip 310 detects that the mains voltage is smaller than the first critical threshold or larger than the second critical threshold, it indicates that the mains voltage is abnormal, and at this time, the switching circuit 130 connects the flat knitting machine device 200 to the battery power supply circuit 120, so that the battery power supply circuit 120 supplies power to the flat knitting machine device 200. The first threshold and the second threshold may be preset according to the operating state of the flat knitting machine 200.
Different from the prior art, in this embodiment, the first control chip 310 is used to determine the working state of the commercial power voltage, and control the switching circuit 130 and the DC/DC boost converter 122 to enable the commercial power supply circuit 110 to supply power to the servo device 230, the motor device 240, and the main control device 210 in the flat knitting machine device 200, so as to implement uninterrupted power supply to the flat knitting machine device 200, and improve the reliability and stability of production.
Referring to fig. 3, fig. 3 is a specific circuit diagram of another embodiment of the power supply circuit of the present application. On the basis of the above embodiments, the battery power supply circuit 120 of this embodiment further includes a DC/AC converter 123, and the switching circuit 130 includes a first switch 131 and a second switch 132, a first terminal of the first switch 131 is coupled to the commercial power supply circuit 110, a second terminal of the first switch 131 is coupled to the DC/DC boost converter 122, a third terminal of the first switch 131 is connected to the servo device 230, and a control terminal of the first switch 131 is connected to the first control chip 310; a first terminal of the second switch 132 is coupled to the mains supply circuit 110, a second terminal of the second switch 132 is coupled to the DC/AC converter 123, a third terminal of the second switch 132 is coupled to the motor device 240, and a control terminal of the second switch 132 is connected to the first control chip 310;
when the first control chip 310 detects that the working state of the utility power supply circuit 110 is abnormal, the first control chip 310 controls the third terminal of the first switch 131 to be connected with the second terminal of the first switch 131, so that the battery 121 supplies power to the servo device 230, and the first control chip 310 controls the third terminal of the second switch 132 to be connected with the second terminal of the second switch 132, so that the battery 121 supplies power to the motor device 240; when the first control chip 310 detects that the working state of the utility power supply circuit 110 is normal, the first control chip 310 controls the third terminal of the first switch 131 to be connected with the first terminal of the first switch 131, so that the utility power supply circuit 110 supplies power to the servo device 230, and the first control chip 310 controls the third terminal of the second switch 132 to be connected with the first terminal of the second switch 132, so that the utility power supply circuit 110 supplies power to the motor device 210.
Wherein the first switch 131 and the second switch 132 may be double pole double throw relays.
In other embodiments, the DC/DC boost converter 122 and the DC/AC converter 123 may be controlled by separate chips respectively.
When the commercial power supply circuit 110 works normally, the commercial power alternating-current voltage supplies power to the servo device 230 and the motor device 240; when the commercial power supply circuit 110 works abnormally, the battery supply circuit 120 works, the second direct-current voltage supplies power to the servo device 230, and the alternating-current voltage output by the battery supply circuit 120 supplies power to the motor device 240.
In other embodiments, the commercial power supply circuit 110, the battery supply circuit 120, the switching circuit 130 and the control chip 300 may also be connected by other connection methods to supply power to the flat knitting machine 200.
Different from the prior art, in this embodiment, by switching the end points of the first switch 131 and the second switch 132, when the commercial power voltage is normal, the commercial power supply circuit 110 is connected to the flat knitting machine device 200, so as to supply power to the flat knitting machine device 200; when the mains voltage is abnormal, the battery power supply circuit 120 is connected with the flat knitting machine equipment 200 to realize the connection of the flat knitting machine equipment 200; meanwhile, in the working process of the battery power supply circuit 120, the first switch 131 is only connected with the DC/DC boost converter 122, and does not need to include the DC/AC converter 123, so that the circuit loss can be reduced, and the utilization efficiency of the battery power can be improved.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a commercial power supply circuit in the power supply circuit of the embodiment of fig. 3. The utility power supply circuit includes: the utility grid 111 and the AC/DC converter 112, the input end of the AC/DC converter 112 is connected with the utility grid 111, and the output end of the AC/DC converter 112 is connected with the main control device 210.
The utility grid 111 outputs a utility AC voltage, an input terminal of the AC/DC converter 112 is connected to the utility grid 111, the AC/DC converter 112 converts the utility AC voltage into a DC voltage and outputs the DC voltage, an output terminal of the AC/DC converter 112 is connected to the main control device 210, and the AC/DC converter 112 outputs the DC voltage to the main control device 210.
The AC/DC converter 112 may be controlled by the first control chip 310, or may be controlled by a separate chip.
Referring to fig. 5, fig. 5 is a voltage waveform diagram of the power supply circuit of the embodiment of fig. 3; wherein Uac represents the mains voltage output by the mains grid 111 when the mains supply circuit 110 is working normally, S2 represents the second switch 132, S1 represents the first switch 131, Uo2 represents the voltage output by the third terminal of the second switch 132, Uo1 represents the voltage output by the third terminal of the first switch 131, Uo3 represents the voltage received by the main control device 210 of the flat knitting machine device 200, Us1 represents the voltage received by the main control device 210 when the mains supply circuit 110 is working normally, and Us2 represents the voltage received by the main control device 210 when the battery supply circuit 120 is working.
In the phase 0-t1, the utility power supply circuit 110 operates normally, the utility voltage is input normally, the third terminal of the first switch 131 is connected to the first terminal of the first switch 131, the third terminal of the second switch 132 is connected to the first terminal of the second switch 132, the first switch 131 and the second switch 132 output ac voltages respectively, and at this time, Uo3 is equal to Us 1.
At the stage 0-t1, the utility power supply circuit 110 is not working normally, the battery supply circuit 120 starts working, the third terminal of the first switch 131 is connected with the second terminal of the first switch 131, the third terminal of the second switch 132 is connected with the second terminal of the second switch 132, the first switch 131 outputs a dc voltage, the second switch 132 outputs an ac voltage, and at this time, Uo3 is equal to Us 2.
Referring to fig. 6, fig. 6 is a circuit schematic diagram of another embodiment of the power supply circuit of the present application, based on the above embodiment, the at least one control chip 300 of the present embodiment further includes a second control chip 320, and the battery power supply circuit 120 further includes a battery charging circuit 124 and an auxiliary power source 113; the input end of the battery 121 is connected to the output end of the battery charging circuit 124, the second output end of the battery 121 is connected to the input end of the second control chip 320, the output end of the second control chip 320 is connected to the first input end of the battery charging circuit 124, and the second input end of the battery charging circuit 124 is connected to the utility power grid 111, so that the utility power grid 111 charges the battery 121 through the battery charging circuit 124; an auxiliary power supply 113 is connected to the output of the AC/DC converter 112 to supply power to the switching circuit and the control chip.
The battery 121 inputs voltage and current sampling signals thereof to the second control chip 320, so that the second control chip 320 acquires state information of the battery 121; the auxiliary power source 113 may be configured to generate an internal power supply voltage to provide a required level for the control chip 300, a driving circuit (not shown), the switching circuit 130, the third switch 141, and the like in the power supply circuit, so as to supply power.
In other embodiments, the second input terminal of the battery charging circuit 124 may also be connected to the output terminal of the AC/DC converter 112, so that the utility grid 111 charges the battery 121 after passing through the AC/DC converter 112 and the battery charging circuit 124, and at this time, the input terminal of the battery 121 receives the DC voltage.
Referring to fig. 7, fig. 7 is a functional control diagram of a second control chip in the power supply circuit of fig. 6. The second control chip 320 obtains parameter information such as voltage, charging current and discharging current of the battery 121, and performs power management and life management on the battery 121 through the battery charging circuit 124. The second control chip 320 can control the battery charging circuit 124, when the utility voltage is normal and the battery power is lower than the first power threshold, the second control chip 320 starts the battery charging circuit 124 to charge the battery 121, so as to ensure that the battery 121 has sufficient power. The second control chip 320 may also report the state of the battery 121 to the flat knitting machine device 200 through the first control chip 310.
In the present embodiment, the second input terminal of the battery charging circuit 124 is connected to the utility grid 111, and optionally, in other embodiments, the second input terminal of the battery charging circuit 124 may also be connected to the output terminal of the AC/DC converter 112, so that the input voltage of the battery charging circuit 124 may be the utility AC voltage, and may also be the DC voltage output by the AC/DC converter 112 or the DC/DC boost converter 122.
The second control chip 320, the battery 121, the battery charging circuit 124, the utility grid 111, the AD/DC converter 112, and the auxiliary power supply 113 may be connected in a circuit connection manner as shown in fig. 6; in other embodiments, the second control chip 320, the battery 121, the battery charging circuit 124, the utility grid 111, the AD/DC converter 112, and the auxiliary power source 113 may be connected in other circuit connection manners.
Referring to fig. 6, optionally, the flat knitting machine device 200 of the present embodiment further includes a fault detection device 250, the power supply circuit further includes a fault protection circuit 140 and a third switch 141, a first end of the third switch 141 is connected to the commercial power supply circuit 110, and a second end of the third switch 141 is connected to the switching circuit 130; when the fault detection device 250 detects a fault signal, a control instruction is generated, the fault protection circuit 140 controls the first terminal of the third switch 141 to be disconnected from the second terminal of the third switch 141 according to the control instruction, and the first control chip 310 controls the third terminal of the first switch 131 to be connected to the first terminal of the first switch 131 and the third terminal of the second switch 132 to be connected to the first terminal of the second switch 132 according to the control instruction.
One end of the fail-safe circuit 140 is connected to the third switch 141, and the other end of the fail-safe circuit 140 is connected to the first control chip 310. When the flat knitting machine device 200 has a fault, the fault detection device 250 of the flat knitting machine device 200 transmits a control instruction to the first control chip 310 through the fault protection circuit 140, and at the same time, controls the first end of the third switch 141 to be disconnected from the second end of the third switch 141, and after the first control chip 310 receives the control instruction, controls the first switch 131 to be switched to the first end of the first switch 131 and the second switch 132 to be switched to the first end of the second switch 132, so that power supply to the servo device 230 and the motor device 240 is also disconnected in the case of abnormal mains supply input.
The third switch 141 may be a double-pole single-throw relay.
Referring to fig. 8, fig. 8 is a voltage waveform diagram of the fault protection circuit in the power supply circuit of fig. 6, which shows the switching of the terminals of the first switch 131, the second switch 132 and the third switch 141 when the flat knitting machine 200 fails under normal or abnormal conditions of the mains voltage.
When the mains voltage is normal, the mains supply circuit 110 works normally, at this time, the flat knitting machine 200 has a fault, the third switch 141 is turned off, the third end of the first switch 131 is connected with the first end of the first switch 131, and the third end of the second switch 132 is connected with the first end of the second switch 132; when the mains voltage is not normal, the battery power supply circuit 120 works, and at this time, the third switch 141 is turned off, the third terminal of the first switch 131 is disconnected from the second terminal of the first switch 131, and is switched to be connected with the first terminal of the first switch 131, and the third terminal of the second switch 132 is disconnected from the second terminal of the second switch 132, and is switched to be connected with the first terminal of the second switch 132.
Referring to fig. 6, optionally, the flat knitting machine device 200 of the embodiment further includes a communication device 220, the power supply circuit 100 further includes a communication circuit 160, a first end of the communication circuit 160 is connected to the first control chip 310, a second end of the communication circuit 160 is connected to the communication device 220, and the first control chip 310 transmits the status information of the power supply circuit 100 to the communication device 220 through the communication circuit 160.
In the process that the power supply circuit 100 supplies power to the flat knitting machine device 200, the first control chip 310 sends the state information of the power supply circuit 100 to the communication device 220 through the communication circuit 160, and meanwhile, the first control chip 310 receives the working state information of the communication device 220, adjusts the power supply circuit 100, and realizes the compatibility of the power supply circuit 100 and the flat knitting machine device 200 in cooperation with the working of the flat knitting machine device 200.
Referring to fig. 9, fig. 9 is a schematic structural diagram of a first control chip in the power supply circuit of the embodiment of fig. 6. The first control chip 310 is connected to the AC/DC converter 112, the DC/AC converter 123 and the DC/DC boost converter 122 respectively to control the working states thereof, the first control chip is connected to the switching circuit 130 to control the end switching of the switching circuit 130 (the first switch 131 and the second switch 132), and the first control chip 310 is connected to the communication device 220 of the flat knitting machine device to report the state information of the power supply circuit or perform circuit adjustment in cooperation with the flat knitting machine device 200.
Different from the prior art, in the power supply circuit 100 of the present application, the control chip 300 determines the working state of the commercial power supply circuit 110, and completes the selective power supply of the commercial power supply circuit 110 and the battery power supply circuit 120 to the flat knitting machine device 200, so that the continuous power supply to the flat knitting machine device 200 is realized in the production process, and when the commercial power voltage is abnormal, the power can be supplied to the flat knitting machine device 200 through the battery power supply circuit 120, thereby reducing the circuit loss and the hardware cost of the power supply system, and improving the utilization efficiency of the battery power.
Referring to fig. 6, optionally, the power supply circuit 100 of the embodiment further includes a power frequency transformer 150, an input end of the power frequency transformer 150 is connected to the third end of the second switch 132, and an output end of the power frequency transformer 150 is connected to the motor device 240. When the commercial power supply circuit 110 works normally, the input end of the industrial frequency transformer 150 receives the commercial power voltage and transmits the commercial power voltage to the motor device 240; when the utility power supply circuit 110 works abnormally, the input end of the power frequency transformer 150 receives the AC voltage inverted by the DC/AC converter 123, and transmits the AC voltage to the motor device 240.
Referring to fig. 1, when the commercial power supply circuit works abnormally, the output voltage of the storage battery needs to pass through the DC/DC boost converter, the DC/AC converter and the AC/DC converter to supply power to the main control device; meanwhile, the output voltage of the storage battery can supply power to the servo equipment through a DC/DC boost converter and a DC/AC converter; the power supply process is subjected to multi-stage voltage conversion, so that the circuit loss is increased, and the utilization efficiency of the electric energy of the battery is reduced.
Referring to fig. 3, in the embodiment, when the commercial power supply circuit 110 works abnormally, the battery supply circuit 120 supplies power to the flat knitting machine 200, and at this time, the battery output voltage can supply power to the main control device 210 only through the DC/DC boost converter 122 without through the DC/AC converter 123 and the AC/DC converter 112; meanwhile, the output voltage of the battery 121 can supply power to the servo device 230 only through the DC/DC boost converter 122 without through the DC/AC converter 123; therefore, the battery power supply circuit 120 does not need to change the voltage in multiple stages in the process of supplying power to the flat knitting machine 200, thereby reducing the circuit loss and the hardware cost of the power supply system and improving the utilization efficiency of the battery power. The power supply circuit 100 is embedded in a power supply system (not shown) of the flat knitting machine device 200, and is compatible with the flat knitting machine device power supply system, so that the working state of the mains voltage is judged through the first control chip 310 in the production process, the switching circuit 130 and the DC/DC boost converter 122 are controlled, the power supply circuit 100 is used for continuously supplying power to the flat knitting machine device 200, and the production reliability and stability are improved.
Referring to fig. 10, fig. 10 is a schematic structural diagram of an embodiment of the flat knitting machine of the present application. The flat knitting machine device 200 includes a servo device 230, a main control device 210, and a motor device 240, wherein the servo device 230, the main control device 210, and the motor device 240 are all coupled to the power supply circuit 100 and powered by the power supply circuit 100, and the power supply circuit 100 is the aforementioned power supply circuit 100.
In this embodiment, the flat knitting machine device may further include a communication device (not shown) and a failure detection device (not shown). The surface of the flat knitting machine device 200 may be provided with a plurality of interfaces to connect the power supply circuit 100 and the flat knitting machine device 200, so as to supply power to the flat knitting machine device 200 by the power supply circuit 100, and the interfaces may respectively correspond to the servo device 230, the main control device 210, and the motor device 200, and may also correspond to the communication device and the fault detection device.
Unlike the prior art, the flat knitting machine apparatus 200 may not be provided with the power supply circuit 100 and the related circuit loads, reducing the weight of the flat knitting machine apparatus 200, and facilitating management and maintenance when the flat knitting machine apparatus 200 or the power supply circuit 110 has a failure.
Referring to fig. 11, fig. 11 is a schematic structural diagram of an embodiment of a textile apparatus 10 of the present application, where the textile apparatus includes the power supply circuit 100 and the flat knitting machine apparatus 200, and the power supply circuit 100 supplies power to the flat knitting machine apparatus 200.
In the textile equipment 10 of the present application, the power supply circuit 100 is fully compatible with the flat knitting machine 200, so that unnecessary loss is reduced, and the power utilization rate in the power supply circuit 100 is high, so that the textile production process is more stable and reliable.
The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.
Claims (8)
1. A power supply circuit is used for supplying power to flat knitting machine equipment, the flat knitting machine equipment comprises servo equipment, main control equipment and motor equipment, the power supply circuit comprises a battery power supply circuit, a switching circuit, a commercial power supply circuit and at least one control chip, the at least one control chip comprises a first control chip, the battery power supply circuit at least comprises a battery, a DC/DC boost converter and a DC/AC converter, the switching circuit comprises a first switch and a second switch, a first output end of the battery is directly connected with an input end of the DC/DC boost converter, a first output end of the DC/DC boost converter is directly connected with the main control equipment, a first end of the first switch is coupled with the commercial power supply circuit, a second end of the first switch is coupled with the DC/DC boost converter, the third end of the first switch is connected with the servo equipment, and the control end of the first switch is connected with the first control chip; a first end of the second switch is coupled with the mains supply circuit, a second end of the second switch is coupled with the DC/AC converter, a third end of the second switch is coupled with the motor device, a control end of the second switch is connected with the first control chip, and the first control chip is used for detecting a working state of the power supply circuit;
when the first control chip detects that the working state of the commercial power supply circuit is abnormal, the first control chip controls the third end of the first switch to be connected with the second end of the first switch so as to enable the battery to supply power to the servo equipment, and the first control chip controls the third end of the second switch to be connected with the second end of the second switch so as to enable the battery to supply power to the motor equipment;
first control chip detects when commercial power supply circuit's operating condition is normal, first control chip control the third terminal of first switch with the first end of first switch is connected, so that commercial power supply circuit is right the servo equipment power supply, just first control chip control the third terminal of second switch with the first end of second switch is connected, so that commercial power supply circuit is right the electrical machinery equipment power supply.
2. The power supply circuit of claim 1, wherein the mains supply circuit comprises: the system comprises a mains supply power grid and an AC/DC converter, wherein the input end of the AC/DC converter is connected with the mains supply power grid, and the output end of the AC/DC converter is connected with the main control equipment.
3. The power supply circuit of claim 2, wherein the at least one control chip further comprises a second control chip, the battery power supply circuit further comprising a battery charging circuit and an auxiliary power supply; the input end of the battery is connected with the output end of the battery charging circuit, the second output end of the battery is connected with the input end of the second control chip, the output end of the second control chip is connected with the first input end of the battery charging circuit, and the second input end of the battery charging circuit is connected with the commercial power grid, so that the commercial power grid charges the battery through the battery charging circuit; the auxiliary power supply is connected with the output end of the AC/DC converter so as to supply power to the switching circuit and the control chip.
4. The power supply circuit according to claim 2, wherein the flat knitting machine device further comprises a failure detection device, the power supply circuit further comprises a failure protection circuit and a third switch, a first end of the third switch is connected to the commercial power supply circuit, and a second end of the third switch is connected to the switching circuit;
when the fault detection equipment detects a fault signal, a control instruction is generated, the fault protection circuit controls the first end of the third switch to be disconnected with the second end of the third switch according to the control instruction, and the first control chip controls the third end of the first switch to be connected with the first end of the first switch and controls the third end of the second switch to be connected with the first end of the second switch according to the control instruction.
5. The power supply circuit according to claim 1, further comprising a power frequency transformer, wherein an input end of the power frequency transformer is connected to the third end of the second switch, and an output end of the power frequency transformer is connected to the motor device.
6. The power supply circuit according to claim 1, wherein the flat knitting machine further comprises a communication device, the power supply circuit further comprises a communication circuit, a first end of the communication circuit is connected with the first control chip, a second end of the communication circuit is connected with the communication device, and the first control chip transmits the status information of the power supply circuit with the communication device through the communication circuit.
7. A flat knitting machine device characterized by comprising a servo device, a main control device and a motor device, wherein the servo device, the main control device and the motor device are all coupled with and powered by a power supply circuit, and wherein the power supply circuit is the power supply circuit of any one of claims 1 to 6.
8. A textile apparatus, characterized in that the textile apparatus comprises the power supply circuit of any one of claims 1 to 6 and the flat knitting machine apparatus of claim 7, the power supply circuit supplying power to the flat knitting machine apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811489447.4A CN109672264B (en) | 2018-12-06 | 2018-12-06 | Textile equipment, power supply circuit thereof and flat knitting machine equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811489447.4A CN109672264B (en) | 2018-12-06 | 2018-12-06 | Textile equipment, power supply circuit thereof and flat knitting machine equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109672264A CN109672264A (en) | 2019-04-23 |
| CN109672264B true CN109672264B (en) | 2021-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811489447.4A Active CN109672264B (en) | 2018-12-06 | 2018-12-06 | Textile equipment, power supply circuit thereof and flat knitting machine equipment |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003304651A (en) * | 2002-02-06 | 2003-10-24 | Ntt Data Corp | Uninterruptible power supply unit |
| CN205811656U (en) * | 2016-07-15 | 2016-12-14 | 刘亚平 | A kind of dual power supply DC control circuit |
| CN106410952B (en) * | 2016-10-14 | 2017-07-07 | 湖南大学 | A kind of seamless switching control method of multi-mode UPS |
| CN107919726A (en) * | 2017-11-17 | 2018-04-17 | 厦门科华恒盛电力能源有限公司 | A kind of Poewr control method and system of energy storage type power-supply system |
| CN108110890A (en) * | 2018-01-30 | 2018-06-01 | 常州纺织服装职业技术学院 | Battery pack off line servo type ups power controller |
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| CN109672264A (en) | 2019-04-23 |
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