CN102843046A - POS (Point-Of-Sale) machine power supply and POS machine - Google Patents
POS (Point-Of-Sale) machine power supply and POS machine Download PDFInfo
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- CN102843046A CN102843046A CN2012101622313A CN201210162231A CN102843046A CN 102843046 A CN102843046 A CN 102843046A CN 2012101622313 A CN2012101622313 A CN 2012101622313A CN 201210162231 A CN201210162231 A CN 201210162231A CN 102843046 A CN102843046 A CN 102843046A
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Abstract
The invention discloses a POS (Point-Of-Sale) machine power supply and a POS machine. The POS machine power supply comprises an AC (Alternating Current) power supply input interface, a power factor correcting unit, a main control panel, a display power supply unit and a printer power supply unit, wherein the AC power supply input interface is connected with the main control panel, the display power supply unit and the printer power supply unit through the power factor correcting unit, the main control panel and the output end of the display power supply unit are connected with a POS machine display through a POS machine main control panel for supplying power to the POS machine main control panel and the POS machine display, and the output end of the printer power supply unit is connected with a POS machine printer for supplying power to the POS machine printer. According to the invention, the AC power supply input interface, the power factor correcting unit, the main control panel, the display power supply unit and the printer power supply unit are arranged on the same PCB (Printed Circuit Board) to form a three-in-one power supply so as to reduce the installation space of the POS machine power supply and reduce the cost.
Description
Technical field
The present invention relates to POS machine technology field, relate in particular to dynamo-electric source of a kind of POS and POS machine.
Background technology
POS machine (Pointofsales, point of sale information management system) is a kind of terminal reading device of being furnished with bar code or OCR sign indicating number (Opticalcharacterrecognition, optical character sign indicating number).The power supply of POS machine of the prior art by three independently power supply form; Comprise master control borad power supply (being PC framework power supply), display power supply (adopting the adapter of 12V/3A-5A usually) and printer power supply (adopting the adapter of 70W usually), above-mentioned three independently power supply be respectively the master control borad of POS machine, the display of POS machine and the printer of POS machine supply power voltage be provided.
As shown in Figure 1, Fig. 1 is the theory diagram in the dynamo-electric source of POS in the prior art, comprises AC power input interface 101, AC power conversion terminal 102, printer power supply 103, master control borad power supply 104 and display power supply 105.AC power input interface 101 is connected with printer power supply 103, master control borad power supply 104 and display power supply 105 respectively through AC power conversion terminal 102.Wherein, printer power supply 103 is used to POS machine printer 106 supply power voltage is provided, and master control borad power supply 104 is used to POS machine master control borad 107 supply power voltage is provided, and display power supply 105 is used to POS machine display 108 supply power voltage is provided.Be POS machine of the prior art, the power supply of its printer, master control borad and display respectively by three independently power supply provide.Yet the defective that the dynamo-electric source of POS shown in Figure 1 exists is: its required installing space is bigger, and its cost is higher.
Summary of the invention
Main purpose of the present invention provides the dynamo-electric source of a kind of POS, is intended to reduce the installing space in the dynamo-electric source of POS, and the cost that reduces the dynamo-electric source of POS.
In order to achieve the above object, the present invention proposes the dynamo-electric source of a kind of POS, and the dynamo-electric source of this POS comprises AC power input interface, Active PFC unit, master control borad and display power supply unit and printer power supply unit, wherein:
Said AC power input interface is used for input ac power;
Said Active PFC unit; Be used for the AC power that said AC power input interface is imported is carried out rectification and Active PFC, and export the power supply after rectification and the Active PFC to said master control borad and display power supply unit and said printer power supply unit respectively;
Said master control borad and display power supply unit are used to POS machine master control borad and POS machine display provides supply power voltage;
Said printer power supply unit is used to POS machine printer supply power voltage is provided;
Said AC power input interface, Active PFC unit, master control borad and display power supply unit, printer power supply unit all are located on the same PCB circuit board.
Preferably, the input of said Active PFC unit is connected with said AC power input interface, and its output is connected with said printer power supply unit with said master control borad and display power supply unit respectively; The input of said master control borad and display power supply unit is connected with the output of said Active PFC unit, and its output is connected with POS machine display with POS machine master control borad respectively; The input of said printer power supply unit is connected with the output of said Active PFC unit, and its output is connected with POS machine printer.
Preferably, also comprise the fan temperature conditioning unit, said fan temperature conditioning unit is connected with said master control borad and display power supply unit, is used for dynamo-electric source of said POS and the inner ambient temperature of POS machine are monitored.
Preferably, said fan temperature conditioning unit comprises temperature sensing circuit, circuit for controlling speed of fan and fan, wherein:
Said temperature sensing circuit; It detects input and is connected with said master control borad and display power supply unit; It detects output and is connected with said circuit for controlling speed of fan; Be used for dynamo-electric source of said POS and the inner ambient temperature of POS machine are detected, and export detected temperature value to said circuit for controlling speed of fan;
Said circuit for controlling speed of fan; Its control input end is connected with the detection output of said temperature sensing circuit; Its control output end is connected with said fan; Be used for according to the detected temperature value of said temperature sensing circuit, the output control signal corresponding is given said fan, to control the rotating speed of said fan;
Said fan is connected with said circuit for controlling speed of fan, is used for the said control signal work according to said circuit for controlling speed of fan output, is dynamo-electric source of said POS and the cooling of POS machine system itself.
Preferably, it is characterized in that:
The control signal of the rotating speed of the said fan of output raising was given said fan when the temperature of said circuit for controlling speed of fan in the dynamo-electric source of said POS was higher than preset temperature value;
The control signal of the rotating speed of the said fan of output reduction was given said fan when the temperature of said circuit for controlling speed of fan in the dynamo-electric source of said POS was lower than preset temperature value.
Preferably, said temperature sensing circuit and said circuit for controlling speed of fan all are located on the said PCB circuit board.
The present invention also proposes a kind of POS machine, and said POS machine comprises the dynamo-electric source of POS, and the dynamo-electric source of said POS comprises AC power input interface, Active PFC unit, master control borad and display power supply unit and printer power supply unit, wherein:
Said AC power input interface is used for input ac power;
Said Active PFC unit; Be used for the AC power that said AC power input interface is imported is carried out rectification and Active PFC, and export the power supply after rectification and the Active PFC to said master control borad and display power supply unit and said printer power supply unit respectively;
Said master control borad and display power supply unit are used to POS machine master control borad and POS machine display provides supply power voltage;
Said printer power supply unit is used to POS machine printer supply power voltage is provided;
Said AC power input interface, Active PFC unit, master control borad and display power supply unit, printer power supply unit all are located on the same PCB circuit board.
The dynamo-electric source of the POS that the present invention proposes; The AC power that adopts the Active PFC unit that the AC power input interface is imported is carried out rectification and Active PFC; And export the power supply after rectification and the Active PFC to master control borad and display power supply unit and printer power supply unit respectively; Wherein master control borad and display power supply unit are used to the master control borad of POS machine and the display of POS machine provides supply power voltage, and the printer that the printer power supply unit is used to the POS machine provides supply power voltage.The present invention is through being located at above-mentioned AC power input interface, Active PFC unit, master control borad and display power supply unit, printer power supply unit on the same PCB circuit board; Form a three-in-one power supply; Be respectively master control borad, display and the printer power supply of POS machine; The present invention has substituted the POS machine supply power mode of three independent current sources of available technology adopting, thereby makes the present invention not only reduce the installing space in the dynamo-electric source of POS, but also has reduced cost.
Description of drawings
Fig. 1 is the theory diagram in the dynamo-electric source of POS in the prior art;
Fig. 2 is the theory diagram of the dynamo-electric source preferred embodiment of POS of the present invention.
The realization of the object of the invention, functional characteristics and advantage will combine embodiment, further specify with reference to accompanying drawing.
Embodiment
Further specify technical scheme of the present invention below in conjunction with Figure of description and specific embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Fig. 2 is the theory diagram of the dynamo-electric source preferred embodiment of POS of the present invention.
With reference to Fig. 2, the dynamo-electric source of POS of the present invention comprises AC power input interface 201, Active PFC unit 202, printer power supply unit 203, master control borad and display power supply unit 204.
Wherein, AC power input interface 201 is connected with the input of Active PFC unit 202;
The input of Active PFC unit 202 is connected with AC power input interface 201, and the output of Active PFC unit 202 is connected with master control borad and display power supply unit 204 with printer power supply unit 203 respectively;
The input of printer power supply unit 203 is connected with the output of Active PFC unit 202, and the output of printer power supply unit 203 is connected with POS machine printer 206;
The input of master control borad and display power supply unit 204 is connected with the output of Active PFC unit 202, and the output of master control borad and display power supply unit 204 is connected with POS machine display 208 with POS machine master control borad 207 respectively.
Particularly, above-mentioned AC power input interface 201 is used for input ac power;
Above-mentioned Active PFC unit 202 is used for the AC power that AC power input interface 201 is imported is carried out rectification and Active PFC, and exports the power supply after rectification and the Active PFC to printer power supply unit 203 and master control borad and display power supply unit 204 respectively;
Above-mentioned printer power supply unit 203 is used to POS machine printer 206 supply power voltage is provided;
Above-mentioned master control borad and display power supply unit 204 are used to POS machine master control borad 207 and with POS machine display 208 supply power voltage are provided.
In addition; The dynamo-electric source of the POS that the embodiment of the invention provided also comprises fan temperature conditioning unit 205; This fan temperature conditioning unit 205 is connected with master control borad and display power supply unit 204, and this fan temperature conditioning unit 205 is used for dynamo-electric source of POS of the present invention and the inner ambient temperature of POS machine are monitored.
Particularly, said fans temperature conditioning unit 205 comprises temperature sensing circuit 2051, circuit for controlling speed of fan 2052 and fan 2053.
Wherein, The detection input of temperature sensing circuit 2051 is connected with master control borad and display power supply unit 204; It detects output and is connected with circuit for controlling speed of fan 2052; This temperature sensing circuit 2051 is used for dynamo-electric source of POS of the present invention and the inner ambient temperature of POS machine are detected, and exports detected temperature value to circuit for controlling speed of fan 2052;
The control input end of circuit for controlling speed of fan 2052 is connected with the detection output of temperature sensing circuit 2051; Its control output end is connected with fan 2053; This circuit for controlling speed of fan 2052 is used for according to said temperature testing circuit 2051 detected temperature values; The output control signal corresponding is given fan 2053, with the rotating speed of control fan 2053;
Fan 2053 is connected with circuit for controlling speed of fan 2052, is used for the control signal work according to circuit for controlling speed of fan 2052 outputs, is dynamo-electric source of POS of the present invention and the cooling of POS machine system itself.
In embodiments of the present invention, when the temperature in the dynamo-electric source of POS of the present invention was higher than preset temperature value, circuit for controlling speed of fan 2052 output control signal corresponding were given fan 2053, to improve the rotating speed of fan 2053; When the temperature in the dynamo-electric source of POS of the present invention was lower than preset temperature value, circuit for controlling speed of fan 2052 output control signal corresponding were given fan 2053, to reduce the rotating speed of fan 2053.
Temperature sensing circuit 2051 in AC power input interface 201 in the embodiment of the invention, Active PFC unit 202, printer power supply unit 203, master control borad and display power supply unit 204 and the fan temperature conditioning unit 205 and circuit for controlling speed of fan 2052 all are located on the same PCB circuit board; Form a three-in-one power supply, the master control borad, display and the printer that are respectively the POS machine provide supply power voltage.The dynamo-electric source of the POS that the embodiment of the invention provided not only can reduce the installing space in the dynamo-electric source of POS, and can also reduce the cost in the dynamo-electric source of POS.Under the condition that does not change POS machine original function, 50% installing space with respect to the dynamo-electric source of POS of the prior art, can be practiced thrift in the dynamo-electric source of the POS that the embodiment of the invention provided, and the cost that reduces by 30%.
The dynamo-electric source of POS of the present invention; The AC power that adopts the Active PFC unit that the AC power input interface is imported is carried out rectification and Active PFC; And export the power supply after rectification and the Active PFC to master control borad and display power supply unit and printer power supply unit respectively; Wherein master control borad and display power supply unit are used to the master control borad of POS machine and the display of POS machine provides supply power voltage, and the printer that the printer power supply unit is used to the POS machine provides supply power voltage.The present invention is through being located at temperature sensing circuit in AC power input interface, Active PFC unit, master control borad and display power supply unit, printer power supply unit and the fan temperature conditioning unit and circuit for controlling speed of fan on the same PCB circuit board; Form a three-in-one power supply; Be respectively master control borad, display and the printer power supply of POS machine; The present invention has substituted the POS machine supply power mode of three independent current sources of available technology adopting; Thereby make the present invention not only reduce the installing space in the dynamo-electric source of POS, but also reduced cost.
And, because the present invention has also adopted the fan temperature conditioning unit that the temperature in the dynamo-electric source of POS is monitored, when the temperature that detects the dynamo-electric source of POS when the fan temperature conditioning unit is higher than preset temperature value; Then export control signal corresponding and give fan; Improving the rotating speed of fan, and the temperature that detects the dynamo-electric source of POS when the fan temperature conditioning unit is then exported control signal corresponding to fan when being lower than preset temperature value; With the rotating speed of reduction fan, thereby make the present invention realize the function of intelligent cooling.
The present invention also proposes a kind of POS machine, and this POS machine comprises the dynamo-electric source of POS, and the theory structure in the dynamo-electric source of its POS is identical with the theory structure in the dynamo-electric source of the described POS of top embodiment, repeats no more here.
The above is merely the preferred embodiments of the present invention; Be not so limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (7)
1. the dynamo-electric source of POS is characterized in that, comprises AC power input interface, Active PFC unit, master control borad and display power supply unit and printer power supply unit, wherein:
Said AC power input interface is used for input ac power;
Said Active PFC unit; Be used for the AC power that said AC power input interface is imported is carried out rectification and Active PFC, and export the power supply after rectification and the Active PFC to said master control borad and display power supply unit and said printer power supply unit respectively;
Said master control borad and display power supply unit are used to POS machine master control borad and POS machine display provides supply power voltage;
Said printer power supply unit is used to POS machine printer supply power voltage is provided;
Said AC power input interface, Active PFC unit, master control borad and display power supply unit, printer power supply unit all are located on the same PCB circuit board.
2. the dynamo-electric source of POS according to claim 1; It is characterized in that; The input of said Active PFC unit is connected with said AC power input interface, and its output is connected with said printer power supply unit with said master control borad and display power supply unit respectively; The input of said master control borad and display power supply unit is connected with the output of said Active PFC unit, and its output is connected with POS machine display with POS machine master control borad respectively; The input of said printer power supply unit is connected with the output of said Active PFC unit, and its output is connected with POS machine printer.
3. the dynamo-electric source of POS according to claim 2; It is characterized in that; Also comprise the fan temperature conditioning unit, said fan temperature conditioning unit is connected with said master control borad and display power supply unit, is used for dynamo-electric source of said POS and the inner ambient temperature of POS machine are monitored.
4. the dynamo-electric source of POS according to claim 3 is characterized in that said fan temperature conditioning unit comprises temperature sensing circuit, circuit for controlling speed of fan and fan, wherein:
Said temperature sensing circuit; It detects input and is connected with said master control borad and display power supply unit; It detects output and is connected with said circuit for controlling speed of fan; Be used for dynamo-electric source of said POS and the inner ambient temperature of POS machine are detected, and export detected temperature value to said circuit for controlling speed of fan;
Said circuit for controlling speed of fan; Its control input end is connected with the detection output of said temperature sensing circuit; Its control output end is connected with said fan; Be used for according to the detected temperature value of said temperature sensing circuit, the output control signal corresponding is given said fan, to control the rotating speed of said fan;
Said fan is connected with said circuit for controlling speed of fan, is used for the said control signal work according to said circuit for controlling speed of fan output, is dynamo-electric source of said POS and the cooling of POS machine system itself.
5. the dynamo-electric source of POS according to claim 4 is characterized in that:
The control signal of the rotating speed of the said fan of output raising was given said fan when the temperature of said circuit for controlling speed of fan in the dynamo-electric source of said POS was higher than preset temperature value;
The control signal of the rotating speed of the said fan of output reduction was given said fan when the temperature of said circuit for controlling speed of fan in the dynamo-electric source of said POS was lower than preset temperature value.
6. the dynamo-electric source of POS according to claim 5 is characterized in that said temperature sensing circuit and said circuit for controlling speed of fan all are located on the said PCB circuit board.
7. a POS machine is characterized in that, comprises the dynamo-electric source of the described POS of claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210162231.3A CN102843046B (en) | 2012-05-23 | 2012-05-23 | POS (Point-Of-Sale) machine power supply and POS machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210162231.3A CN102843046B (en) | 2012-05-23 | 2012-05-23 | POS (Point-Of-Sale) machine power supply and POS machine |
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| CN102843046A true CN102843046A (en) | 2012-12-26 |
| CN102843046B CN102843046B (en) | 2014-12-17 |
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| CN201210162231.3A Active CN102843046B (en) | 2012-05-23 | 2012-05-23 | POS (Point-Of-Sale) machine power supply and POS machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280991A (en) * | 2013-06-19 | 2013-09-04 | 国家电网公司 | Vehicle-mounted power source of POS machine |
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| CN101922464A (en) * | 2010-06-23 | 2010-12-22 | 北京星网锐捷网络技术有限公司 | Method, device and network equipment for adjusting fan speed |
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| CN202634302U (en) * | 2012-05-23 | 2012-12-26 | 深圳市航嘉驰源电气股份有限公司 | Pos machine power supply and pos machine |
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2012
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Patent Citations (5)
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| JPH01138928A (en) * | 1987-11-26 | 1989-05-31 | Nitsuko Corp | Charging equipment with transmission function |
| US20040189095A1 (en) * | 2003-03-25 | 2004-09-30 | Yung-Lin Lin | Integrated power supply for an LCD panel |
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| CN103280991A (en) * | 2013-06-19 | 2013-09-04 | 国家电网公司 | Vehicle-mounted power source of POS machine |
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