CN110896286A - Numerical control sine high-voltage ion power supply device of cold chain refrigeration house - Google Patents
Numerical control sine high-voltage ion power supply device of cold chain refrigeration house Download PDFInfo
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- CN110896286A CN110896286A CN201811057517.9A CN201811057517A CN110896286A CN 110896286 A CN110896286 A CN 110896286A CN 201811057517 A CN201811057517 A CN 201811057517A CN 110896286 A CN110896286 A CN 110896286A
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- power supply
- ion power
- voltage
- numerical control
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
- H02M7/53871—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/539—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency
- H02M7/5395—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency by pulse-width modulation
Abstract
The invention discloses a numerical control sine high-voltage ion power supply device of a cold-chain refrigerator, which comprises a main ion power supply and a plurality of auxiliary ion power supplies, wherein the main ion power supply is connected with the auxiliary ion power supplies through an RS232 port, the main ion power supply is connected with a master controller through an RS485 port, and the main ion power supply is also electrically connected with a start/stop and acousto-optic alarm indicator lamp and a door diameter. According to the invention, a single sine high-voltage ion power supply 40VA can be increased to the power of 80VA by adding a voltage booster inside a full-bridge inverter board, a display control board can be connected with 6 sine high-voltage ion power supplies through RS232 control, current and voltage of each sine high-voltage ion power supply are set individually, current and voltage of each sine high-voltage ion power supply can be displayed individually through key switching, alarm reason of each sine high-voltage ion power supply can be displayed through key switching, each sine high-voltage ion power supply provides remote start and stop and audible and visual alarm, and a worker can start/stop the sine high-voltage ion power supply at a distance of 30 meters.
Description
Technical Field
The invention relates to the technical field of power supply equipment, in particular to a numerical control sine high-voltage ion power supply device for a cold chain refrigeration house.
Background
The modern life rhythm is accelerated and the living standard is improved, so that the quality requirements of people on fresh fruits and vegetables and other agricultural products are higher and higher, the traditional low-temperature fresh-keeping, chemical fresh-keeping, pressure-reducing fresh-keeping, radiation fresh-keeping and coating fresh-keeping are respectively insufficient in the using process, a numerical control sine high-voltage ion power supply of a cold chain refrigerator generates ion mist and a certain amount of ozone by utilizing a high-voltage electric field, wherein negative ions have the effects of inhibiting metabolism and respiration intensity, and the ozone has the effects of inhibiting bacteria and oxidizing ethylene, so that the fresh-keeping effect on new products of fruits and vegetables can be achieved, and the fresh-keeping effect is good.
The high-voltage ion technology used today is generally of the following two general types:
1. the commercial power (90 VAC-264 VAC) is directly boosted to 3 KV-7 KV by using the industrial frequency transformer. Tap through relay switching transformer obtains different output voltage, advantage: the circuit is simple and the cost is low; the disadvantages are as follows: the output voltage of the power frequency transformer is easily affected by the output load and the voltage fluctuation of a power grid, the power frequency transformer is not suitable for 110V/230V full voltage, the output frequency (consistent with commercial power) is not adjustable, and the output voltage adjusting precision (by switching a transformer tap) is also poor by 10%. The industrial frequency transformer is also large in size, low in efficiency and high in heat productivity.
2. The power frequency transformer is adopted to step down and rectify the mains supply voltage to obtain a safe voltage, then the SPWM technology is adopted to produce a sine wave, and the step-up transformer is adopted to step up the voltage to 3 KV-7 KV, so that the device has the advantages that: output voltage does not receive output load, and output voltage adjustment accuracy is 1% high, and output sine wave frequency can be adjusted, the shortcoming: the single machine provides little power, and can not the parallel operation, is not suitable for the use of big shape freezer, does not have telecommunication, and every can need staff independent setting, and the preceding stage uses power frequency power supply, is not suitable for 110V/230V full voltage.
Disclosure of Invention
The invention aims to provide a numerical control sine high-voltage ion power supply device for a cold-chain refrigeration house, which can solve the problems that the global full voltage of 110V/230V is suitable, the refrigeration house can be used in large and small sizes, and the high-voltage ion power supply is remotely controlled, so that the working efficiency of personnel and the high-voltage ion power supply is further improved, and the problems in the background technology are solved.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a sinusoidal high-pressure ion power supply unit of cold chain freezer numerical control, includes main ion power supply and a plurality of auxiliary ion power supply, main ion power supply is connected with auxiliary ion power supply through the RS232 port, main ion power supply is connected with total controller through the RS485 port, main ion power supply still electric connection have start/stop and acousto-optic warning pilot lamp and door footpath.
As a further scheme of the invention: and the master controller is respectively connected with a computer and a network card through RS232 ports.
As a further scheme of the invention: the main ion power supply and the auxiliary ion power supply comprise full-bridge inversion plates, and the full-bridge inversion plates are electrically connected with a switching power supply plate.
As a further scheme of the invention: the full-bridge inverter board is connected with a display control board through an RS232 port.
As a further scheme of the invention: the full-bridge inverter board is also electrically connected with two step-up transformers.
As a further scheme of the invention: the start/stop and acousto-optic alarm indicator lamp and the door diameter are respectively and electrically connected with a full-bridge inverter board in the main ion power supply.
As a still further scheme of the invention: the switching power supply board is electrically connected with commercial power.
Compared with the prior art, the invention has the beneficial effects that:
the numerical control sine high-voltage ion power supply device for the cold-chain refrigerator is reasonable in structure and novel in design, a single sine high-voltage ion power supply 40VA can be increased to the power of 80VA through a step-up converter arranged in a full-bridge inverter board, a display control board can be connected with 6 sine high-voltage ion power supplies through RS232 control, current and voltage of each sine high-voltage ion power supply are set, current and voltage of each sine high-voltage ion power supply can be independently displayed through key switching, alarm reasons of each sine high-voltage ion power supply can be displayed through key switching, each sine high-voltage ion power supply provides remote 'starting, stopping' and sound and light alarm, a worker can start/stop the sine high-voltage ion power supply at a distance of 30 meters and can observe the working state of the sine high-voltage ion power supply, a master controller can be connected with 32 display control boards through RS485, and the control boards are connected with a computer or an Ethernet, the staff can pass through special control computer or internet remote control 192 platform sinusoidal high voltage ion power supply, and the whole control process is simple reliable.
Drawings
Fig. 1 is a schematic structural diagram of a numerical control sine high-voltage ion power supply device of a cold chain cold storage.
Fig. 2 is a schematic structural diagram of a main ion power supply in a numerical control sine high-voltage ion power supply device of a cold chain cold storage.
In the figure: 1-main ion power supply, 2-negative ion power supply, 3-display control panel, 4-start/stop and acousto-optic alarm indicator lamp, 5-gate diameter, 6-computer, 7-master controller, 8-network card, 11-full bridge inverter board, 12-switch power supply board, 13-step-up transformer and 14-display control panel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, in the embodiment of the present invention, a numerical control sinusoidal high-voltage ion power supply device for a cold-chain refrigerator includes a main ion power supply 1 and a plurality of auxiliary ion power supplies 2, the main ion power supply 1 is connected to the auxiliary ion power supplies 2 through RS232 ports, the main ion power supply 1 is connected to a main controller 7 through RS485 ports, the main controller 7 is respectively connected to a computer 6 and a network card 8 through RS232 ports, and the main ion power supply 1 is further electrically connected to a start/stop and acousto-optic alarm indicator lamp 4 and a door diameter 5.
Referring to fig. 2, the start/stop and sound and light alarm indicator lamp 4 and the door diameter 5 are respectively and electrically connected to a full-bridge inverter board 11 in the main ion power supply 1, the main ion power supply 1 and the auxiliary ion power supply 2 include the full-bridge inverter board 11, the full-bridge inverter board 11 is further and electrically connected to two step-up transformers 13, the full-bridge inverter board 11 is connected to a display control board 14 through an RS232 port, the full-bridge inverter board 11 is electrically connected to a switching power supply board 12, and the switching power supply board 12 is electrically connected to a commercial power.
In the invention, the flyback switching power supply supplies the safe voltage of 30V 4A to all the following modules, and meanwhile, the flyback switching power supply can be suitable for the global voltage of 110V/230V.
The switching power supply board 12 is connected with the full-bridge inverter board 11 through an 18AWG red-black power line, and the full-bridge inverter board 11 comprises a full-bridge inverter circuit consisting of a single chip microcomputer, a high-voltage, a high-voltage current sample, a full-bridge drive (MOS) and an LC filter circuit; two voltage reduction (BUCK) circuits generate 12V and 5V power supplies which respectively supply power to a full-bridge inversion MOS drive circuit and a single chip Microcomputer (MUC) sampling circuit; a 4-wire RS232 serial port communication is realized to communicate with the display control panel 14 and supply power to the display control panel; the door switch interface can forcibly stop the output of high-voltage sine waves when the door is opened through the interface, so that the worker is prevented from being shocked by electricity, the frequency and the single machine are selected in parallel, the switching of the high-voltage sine wave frequencies of 50HZ and 60HZ is realized through the selection of one group of the contact pin short circuit caps, and the power output of double high-voltage sine waves can be realized through the parallel connection of the single-machine transformers through the selection of the other group of the contact pin short circuit caps.
In the invention, a single chip microcomputer receives a starting command of a display control panel 14 → the single chip microcomputer sends out sinusoidal pulse width modulation (SPMW) to a drive circuit → the drive circuit converts the SPMW of 5V into SPMW drive of 12V and supplies the SPMW drive to a full bridge circuit consisting of full bridge upper and lower field effect transistors (MOS) → four MOS via the SPMW to modulate a power supply of 30V into positive and negative 30V SPWM waveform → an inductance capacitance inductor (LCL) filters the SPMW to obtain sine wave voltage → a step-up transformer 13 raises the sine wave voltage to a high-voltage sine wave voltage of 3 KV-7 KV → a voltage and current sampling circuit samples the high-voltage sine wave voltage and sends the high-voltage sine wave voltage to the single chip microcomputer → the single chip microcomputer to calculate the voltage and current value to realize closed-loop control on the whole full bridge inverter circuit, and simultaneously sends the voltage and current values to RS232 serial communication → RS232 serial communication to, the full bridge inverter board 11 will stop operating.
The step-up transformer in the invention is used for stepping up the low-voltage sine wave voltage inverted by the full bridge to the high-voltage sine wave voltage of 3 KV-7 KV.
According to the invention, the display control panel 14 realizes communication and 5V power supply through 4 RS232 lines, the display control panel 14 comprises 6 serial communication and power supply ports, the voltage and the current of 6 full-bridge inverter panels can be controlled simultaneously, and any 1 full-bridge inverter panel 11 can supply power to the display control panel without mutual influence; two 3-bit digital tube display screens, one for displaying voltage and one for displaying current; five keys are used for setting and switching voltage and voltage. 12 Light Emitting Diodes (LEDs), wherein 6 LEDs are used for indicating the work of 6 full-bridge inverter boards, and the other 4 LEDs are respectively used for indicating normal work, alarming, door diameter and standby; a long-range start/stop and reputation indicate the interface, can realize long-range start/stop and reputation through this mouth and instruct, a long-range RS485 communication interface, can realize the communication between 32 display control boards through this interface, display control board 14 communicates and supplies power (can connect 6 full-bridge inverter board 11 communications at most) through 4 line serial ports communication and full-bridge inverter board 11 → the staff sets for voltage and electric current through display control board 14 to single full-bridge inverter board 11 → the start signal sends through RS232 signal unification → full-bridge inverter board 11 receives the signal start, start successfully → voltage, electric current and operating condition feed back to display control board 14 through RS232 → the operating condition of each full-bridge inverter board 11 is shown through the button switch. The invention realizes remote start and stop by starting/stopping and the audible and visual alarm indicator lamp 4 in the process, and also has normal work, alarm, door diameter and standby indication.
The master controller 7 of the invention comprises an RS485 communication; an RS232 serial port; a 128 x 64 liquid crystal display; 4 keys; the 5V 1A switching power supply and the 5V 1A switching power supply power to the master control board → the keys are set → the display control board communicates with the display control board through RS485, and at most 32 display control boards 14(192 full-bridge inverter boards) can be connected with a computer directly → connected with the computer through RS232, or an Ethernet interface is expanded to be connected with the Internet.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The utility model provides a sinusoidal high-pressure ion power supply unit of cold chain freezer numerical control, includes main ion power supply (1) and a plurality of auxiliary ion power supply (2), its characterized in that, main ion power supply (1) is connected with auxiliary ion power supply (2) through the RS232 port, main ion power supply (1) is connected with total controller (7) through the RS485 port, main ion power supply (1) still electric connection have start/stop and acousto-optic warning pilot lamp (4) and door footpath (5).
2. The numerical control sine high-voltage ion power supply device for the cold-chain refrigerator according to claim 1, wherein the master controller (7) is respectively connected with a computer (6) and a network card (8) through RS232 ports.
3. The numerical control sine high-voltage ion power supply device of a cold-chain refrigerator according to claim 1, wherein the main ion power supply (1) and the auxiliary ion power supply (2) comprise a full-bridge inverter board (11), and the full-bridge inverter board (11) is electrically connected with a switching power supply board (12).
4. The numerical control sine high-voltage ion power supply device for the cold-chain refrigerator according to claim 3, wherein the full-bridge inverter board (11) is connected with a display control board (14) through an RS232 port.
5. The numerical control sine high-voltage ion power supply device for the cold-chain cold storage according to claim 3 or 4, wherein the full-bridge inverter board (11) is further electrically connected with two step-up transformers (13).
6. The numerical control sine high-voltage ion power supply device for the cold-chain refrigerator according to claim 1, wherein the start/stop and audible and visual alarm indicator lamp (4) and the door diameter (5) are respectively and electrically connected with a full-bridge inverter board (11) in the main ion power supply (1).
7. The numerical control sine high-voltage ion power supply device for the cold chain refrigerator according to claim 3, wherein the switching power supply board (12) is electrically connected with a mains supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811057517.9A CN110896286A (en) | 2018-09-11 | 2018-09-11 | Numerical control sine high-voltage ion power supply device of cold chain refrigeration house |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811057517.9A CN110896286A (en) | 2018-09-11 | 2018-09-11 | Numerical control sine high-voltage ion power supply device of cold chain refrigeration house |
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| CN110896286A true CN110896286A (en) | 2020-03-20 |
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| CN201811057517.9A Pending CN110896286A (en) | 2018-09-11 | 2018-09-11 | Numerical control sine high-voltage ion power supply device of cold chain refrigeration house |
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Citations (8)
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|---|---|---|---|---|
| CN1306754A (en) * | 2000-02-03 | 2001-08-08 | 国营华北光学仪器厂 | Method and device for preserving fruit and vegetable utilizing low-temperature plasma |
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| EP2708967A1 (en) * | 2012-09-13 | 2014-03-19 | Fabian Sacharowitz | Decentralized electric actuating device |
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| CN206135431U (en) * | 2016-11-11 | 2017-04-26 | 淮阴工学院 | Photovoltaic contravariant controlling means based on wireless sensor network |
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2018
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| EP2708967A1 (en) * | 2012-09-13 | 2014-03-19 | Fabian Sacharowitz | Decentralized electric actuating device |
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