CN202444254U - Air conditioner and discharge circuit of air conditioner bus capacitor - Google Patents
Air conditioner and discharge circuit of air conditioner bus capacitor Download PDFInfo
- Publication number
- CN202444254U CN202444254U CN2012200666362U CN201220066636U CN202444254U CN 202444254 U CN202444254 U CN 202444254U CN 2012200666362 U CN2012200666362 U CN 2012200666362U CN 201220066636 U CN201220066636 U CN 201220066636U CN 202444254 U CN202444254 U CN 202444254U
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- air conditioner
- bus capacitor
- contact
- electromagnetic relay
- discharge
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Abstract
The utility model discloses an air conditioner and a discharge circuit of an air conditioner bus capacitor. The discharge circuit of the air conditioner bus capacitor comprises a bus capacitor, a switching unit, a discharge unit and a control unit, wherein the discharge unit is connected with the bus capacitor by the switching unit; and the control unit is connected with the switching unit, and is used for controlling the switching unit to be switched on when the air conditioner is in a power-off state, so that the discharge unit and the bus capacitor form a discharge loop, and controlling the switching unit to be switched off when the air conditioner is in a power-on state. According to the utility model, the problems that the discharge waiting time of the air conditioner bus capacitor is long and manual discharge is not safe in the prior art are solved, and the effects that the bus capacitor discharges in time and the manpower cost is lowered are further achieved.
Description
Technical field
The utility model relates to the air conditioner field, in particular to the discharge circuit of a kind of air conditioner and air conditioner bus capacitor.
Background technology
When air conditioner test, maintenance is the personal safety that guarantees test, maintenance personal; Need before test, maintenance, the bus capacitor in the booster circuit be discharged; The charging method of prior art is: test man or maintenance man connected discharge resistance in the controller mainboard and bus capacitor before testing or keeping in repair artificially, and bus capacitor begins discharge.This kind discharge mode of the prior art is because the bus capacitor discharge needs the regular hour, so in the process of bus capacitor discharge, test man or maintenance man can only wait for.Need the artificial discharge circuit of connecting when no matter being discharge, still need wait for after discharge finishes and just can test or keep in repair, all can cause waste of manpower resource.Also have electrical safety hidden danger simultaneously, produce with after sale in inconvenient related personnel test and keep in repair.
The of a specified duration and unsafe problem in manual discharge of bus capacitor discharge stand-by period to air conditioner in the correlation technique does not propose effective solution at present as yet.
The utility model content
The main purpose of the utility model is to provide the discharge circuit of a kind of air conditioner and air conditioner bus capacitor, to solve the of a specified duration and unsafe problem in manual discharge of bus capacitor discharge stand-by period of air conditioner in the prior art.
To achieve these goals,, a kind of discharge circuit of air conditioner bus capacitor is provided, has comprised: bus capacitor according to an aspect of the utility model; Switch element; Discharge cell is connected with bus capacitor via switch element; And control unit, be connected with switch element, be used for control switch unit closure when air conditioner is in off-position so that discharge cell and bus capacitor constitute discharge loop,, air conditioner controls switch unit when being in power-up state.
Further, switch element comprises first switch, and wherein, first end of discharge cell is connected with first end of bus capacitor, and second end of discharge cell is connected with second end of bus capacitor via first switch.
Further, switch element also comprises second switch, and wherein, first end of discharge cell is connected with first end of bus capacitor via second switch.
Further, switch element is an electromagnetic relay, and wherein, the control coil of electromagnetic relay is connected with control unit, and the moving contact of electromagnetic relay and normally-closed contact are arranged between discharge cell and the bus capacitor.
Further; Electromagnetic relay is the double-contact electromagnetic relay; Discharge cell is the compressor heat tape of air conditioner, and wherein, the control coil of double-contact electromagnetic relay is connected with control unit; First moving contact of double-contact electromagnetic relay is connected with first end of compressor heat tape; Second moving contact of double-contact electromagnetic relay is connected with second end of compressor heat tape, and first normally-closed contact of double-contact electromagnetic relay is connected with first end of bus capacitor, and second normally-closed contact of double-contact electromagnetic relay is connected with second end of bus capacitor.
Further, electromagnetic relay is the double-contact electromagnetic relay, and discharge cell is the compressor heat tape of air conditioner; Wherein, The control coil of double-contact electromagnetic relay is connected with control unit, and first moving contact of double-contact electromagnetic relay is connected with first end of compressor heat tape, and second moving contact of double-contact electromagnetic relay is connected with second end of compressor heat tape; First normally-closed contact of double-contact electromagnetic relay is connected with first end of bus capacitor; Second normally-closed contact of double-contact electromagnetic relay is connected with second end of bus capacitor, and first normally opened contact of double-contact electromagnetic relay is connected through first end of the 3rd switch with the compressor heating power supply of air conditioner, and second normally opened contact of double-contact electromagnetic relay is connected with second end of the compressor heating power supply of air conditioner; When the compressor of air conditioner needs heat supply; The 3rd switch closure, when the compressor of air conditioner did not need heat supply, the 3rd switch broke off; Wherein, the 3rd switch is the switch in the compressor heat supplying loop of air conditioner.
Further, control unit is the CPU of air conditioner.
To achieve these goals, according to the utility model on the other hand, a kind of air conditioner is provided, has comprised the discharge circuit of any air conditioner bus capacitor that the utility model foregoing is provided.
Through the utility model, adopt the discharge circuit that comprises following structure: switch element; Discharge cell is connected with bus capacitor via switch element; And control unit; Be connected with switch element; Be used for control switch unit closure when air conditioner is in off-position so that discharge cell and bus capacitor constitute discharge loop, when air conditioner is in power-up state, control switch unit, through the control whether discharge loop of bus capacitor is connected; In time the control discharge loop is connected when air conditioner cuts off the power supply; In case realized air conditioner outage just to the bus capacitor discharge, and then realized at air-conditioner repair or bus capacitor discharge off before testing, avoided maintenance personal or tester's wait; Simultaneously, whether the connection through automatic control discharge loop, need not the people for being switched on or switched off discharge loop, realized reducing human cost and the personal safety that guarantees maintenance personal or tester.Through the utility model, solved the of a specified duration and unsafe problem in manual discharge of bus capacitor discharge stand-by period of air conditioner in the prior art, and then reached the effect that bus capacitor in time discharges, reduces human cost.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide the further understanding to the utility model, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 is the schematic diagram according to the discharge circuit of the utility model first embodiment;
Fig. 2 is the schematic diagram according to the discharge circuit of the utility model second embodiment;
Fig. 3 is the schematic diagram according to the discharge circuit of the utility model the 3rd embodiment; And
Fig. 4 a and Fig. 4 b are the connection layouts according to the heating circuit of the discharge circuit of the utility model the 3rd embodiment and cooler compressor.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.Below with reference to accompanying drawing and combine embodiment to specify the utility model.
Fig. 1 is the schematic diagram according to the discharge circuit of the utility model first embodiment, and is as shown in Figure 1, and the discharge circuit of the utility model first embodiment comprises: bus capacitor, switch element, discharge cell and control unit.Particularly, switch element, bus capacitor and discharge cell series connection constitute discharge loop, and control unit is connected with switch element, and is closed with control switch unit when air conditioner is in off-position, and then makes the discharge loop conducting, the bus capacitor discharge; When air conditioner is in power-up state, control switch unit, and then discharge loop is broken off, bus capacitor stops discharge.
Wherein, switch element can comprise first switch, and first end of discharge cell directly is connected with first end of bus capacitor, and second end of discharge cell is connected with second end of bus capacitor through first switch.
Through the control whether discharge loop of bus capacitor is connected; In time the control discharge loop is connected when air conditioner cuts off the power supply; In case having realized the air conditioner outage just discharges to bus capacitor; And then realized bus capacitor discharge off before air-conditioner repair or test, avoided maintenance personal or tester's wait; Simultaneously, whether the connection through automatic control discharge loop, need not the people for being switched on or switched off discharge loop, realized reducing human cost and the personal safety that guarantees maintenance personal or tester.Solve the of a specified duration and unsafe problem in manual discharge of bus capacitor discharge stand-by period of air conditioner in the prior art, and then reached the effect that bus capacitor in time discharges, reduces human cost.
Preferably, switch element also comprises second switch, and wherein, first end of discharge cell is connected with first end of bus capacitor via second switch.
Through first switch and second switch are set, avoided to break off the discharge loop that causes because of breaking down and to break off the drawback that air conditioner can't operate as normal when one of them switch in switch element.Being provided with of first switch and second switch guaranteed that bus capacitor can either regular picture, can satisfy air conditioner operate as normal demand again.
Fig. 2 is the schematic diagram according to the discharge circuit of the utility model second embodiment; The discharge circuit of the utility model second embodiment is compared with the discharge circuit of the utility model first embodiment; The two difference is: as shown in Figure 2, in the utility model second embodiment, switch element is an electromagnetic relay; In Fig. 2, be illustrated with a double-contact electromagnetic relay (conversion hysteria relay); Wherein, the control coil of electromagnetic relay is connected with control unit, and the moving contact of electromagnetic relay and normally-closed contact are arranged between discharge cell and the bus capacitor.
When air conditioner is in power-up state, control unit control electromagnetic relay adhesive (that is, the moving contact of electromagnetic relay is connected with normally opened contact), at this moment, discharge loop is in off-state; When air conditioner was in off-position, the electromagnetic relay switch restPosed (that is, the moving contact of electromagnetic relay is connected with normally-closed contact), at this moment, and discharge loop conducting, bus capacitor discharge.Double-contact electromagnetic relay among Fig. 2 also can be replaced by the moving fault electromagnetic relay.
Whether conducting through adopting electromagnetic relay control discharge loop, realized the effect of simple control loop break-make.
Fig. 3 is the schematic diagram according to the discharge circuit of the utility model the 3rd embodiment; The discharge circuit of the utility model second embodiment is compared with the discharge circuit of the utility model second embodiment; The two difference is: as shown in Figure 3; In the utility model the 3rd embodiment; Discharge cell is the compressor heat tape of air conditioner, and switch element is the double-contact electromagnetic relay of twin coil, and the control coil of output point electromagnetic relay is connected with control unit; First moving contact of double-contact electromagnetic relay is connected with first end of compressor heat tape; Second moving contact of double-contact electromagnetic relay is connected with second end of compressor heat tape, and first normally-closed contact of double-contact electromagnetic relay is connected with first end of bus capacitor, and second normally-closed contact of double-contact electromagnetic relay is connected with second end of bus capacitor.
When air conditioner is in power-up state; The adhesive of control unit control electromagnetic relay (promptly; The moving contact of electromagnetic relay is connected with normally opened contact, comprising: first moving contact is connected with first normally opened contact, and second moving contact is connected with second normally opened contact); At this moment, discharge loop is in off-state; When air conditioner is in off-position; The electromagnetic relay switch restPoses, and (that is, the moving contact of electromagnetic relay is connected with normally-closed contact, comprising: first moving contact is connected with first normally-closed contact; Second moving contact is connected with second normally-closed contact); At this moment, discharge loop conducting, bus capacitor discharge.
Existing compressor heat tape has reached the effect of simplifying circuit structure as the discharge cell of discharge circuit in the air-conditioner system through utilizing.
Wherein, the discharge circuit among the utility model the 3rd embodiment is when utilizing the compressor heat tape as discharge cell, and not influencing the compressor heat tape is the compressor heat supply; Particularly; Shown in Fig. 4 a and Fig. 4 b, Fig. 4 a and Fig. 4 b are the connection layouts according to the heating circuit of the discharge circuit of the utility model the 3rd embodiment and cooler compressor, wherein; The annexation of control unit and control unit and electromagnetic relay has been shown, not shown control unit among Fig. 4 b among Fig. 4 a.When utilizing the compressor heat tape as discharge cell; Can first normally opened contact of double-contact electromagnetic relay (double-contact electromagnetic relay in Fig. 4 b be labeled as k1) be connected with an end of heating power supply through the 3rd switch (the 3rd switch in Fig. 4 b be labeled as k2), second normally opened contact of double-contact electromagnetic relay is connected with the other end of heating power supply.
When air conditioner was in power-up state, (that is, the moving contact of electromagnetic relay was connected with normally opened contact the adhesive of control unit control electromagnetic relay; Comprise: first moving contact is connected with first normally opened contact, and second moving contact is connected with second normally opened contact), at this moment; Discharge loop is in off-state, and compressor heat tape work if desired then can be controlled the 3rd switch closure; Make the heating circuit conducting, give the compressor heat supply; If do not need the work of compressor heat tape, then can control the 3rd switch and break off, heating circuit is broken off, stop to the compressor heat supply.When air conditioner is in off-position, when air conditioner is in off-position, need not be the compressor heat supply naturally yet; The electromagnetic relay switch restPoses, and (that is, the moving contact of electromagnetic relay is connected with normally-closed contact, comprising: first moving contact is connected with first normally-closed contact; Second moving contact is connected with second normally-closed contact); At this moment, discharge loop conducting, bus capacitor discharge.
Preferably, control unit is the CPU of air conditioner.
CPU through utilizing air conditioner can in time promptly be judged the "on" position of air conditioner as the control unit among the utility model embodiment, has reached to make the bus capacitor effect of discharge in time.
In addition; The utility model embodiment also provides the discharge control method of a kind of air conditioner and air conditioner bus capacitor; Wherein, The air conditioner of the utility model embodiment comprises any discharge circuit that the utility model embodiment is provided, and the discharge circuit of any bus capacitor that the discharge control method of the air conditioner bus capacitor of the utility model embodiment can be provided through the utility model foregoing is carried out, and specifically comprises: the "on" position that detects air conditioner; When air conditioner was in off-position, the switch element closure between control discharge cell and the bus capacitor was so that discharge cell and bus capacitor constitute discharge loop; And when air conditioner is in power-up state, control switch unit.
"on" position through to air conditioner detects; In time the control discharge loop is connected when air conditioner cuts off the power supply; In case having realized the air conditioner outage just discharges to bus capacitor; And then realized bus capacitor discharge off before air-conditioner repair or test, avoided maintenance personal or tester's wait; Simultaneously, whether the connection through automatic control discharge loop, need not the people for being switched on or switched off discharge loop, realized reducing human cost and the personal safety that guarantees maintenance personal or tester.Solve the of a specified duration and unsafe problem in manual discharge of bus capacitor discharge stand-by period of air conditioner in the prior art, and then reached the effect that bus capacitor in time discharges, reduces human cost.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the utility model.
Claims (8)
1. the discharge circuit of an air conditioner bus capacitor is characterized in that, comprising:
Bus capacitor;
Switch element;
Discharge cell is connected with bus capacitor via said switch element; And
Control unit; Be connected with said switch element; It is closed so that said discharge cell and said bus capacitor constitute discharge loop to be used for when air conditioner is in off-position, controlling said switch element, when said air conditioner is in power-up state, controls said switch element and breaks off.
2. circuit according to claim 1; It is characterized in that; Said switch element comprises first switch; Wherein, first end of said discharge cell is connected with first end of said bus capacitor, and second end of said discharge cell is connected with second end of said bus capacitor via said first switch.
3. circuit according to claim 2 is characterized in that said switch element also comprises second switch, and wherein, first end of said discharge cell is connected with first end of said bus capacitor via said second switch.
4. circuit according to claim 1 is characterized in that,
Said switch element is an electromagnetic relay,
Wherein, the control coil of said electromagnetic relay is connected with said control unit, and the moving contact of said electromagnetic relay and normally-closed contact are arranged between said discharge cell and the said bus capacitor.
5. circuit according to claim 1 is characterized in that,
Said switch element is the double-contact electromagnetic relay,
Said discharge cell is the compressor heat tape of said air conditioner,
Wherein, The control coil of said double-contact electromagnetic relay is connected with said control unit; First moving contact of said double-contact electromagnetic relay is connected with first end of said compressor heat tape; Second moving contact of said double-contact electromagnetic relay is connected with second end of said compressor heat tape; First normally-closed contact of said double-contact electromagnetic relay is connected with first end of said bus capacitor, and second normally-closed contact of said double-contact electromagnetic relay is connected with second end of said bus capacitor.
6. circuit according to claim 1 is characterized in that,
Said switch element is the double-contact electromagnetic relay,
Said discharge cell is the compressor heat tape of said air conditioner,
Wherein, The control coil of said double-contact electromagnetic relay is connected with said control unit; First moving contact of said double-contact electromagnetic relay is connected with first end of said compressor heat tape; Second moving contact of said double-contact electromagnetic relay is connected with second end of said compressor heat tape, and first normally-closed contact of said double-contact electromagnetic relay is connected with first end of said bus capacitor, and second normally-closed contact of said double-contact electromagnetic relay is connected with second end of said bus capacitor; First normally opened contact of said double-contact electromagnetic relay is connected through first end of the 3rd switch with the compressor heating power supply of said air conditioner; Second normally opened contact of said double-contact electromagnetic relay is connected with second end of the compressor heating power supply of said air conditioner, when the compressor of said air conditioner needs heat supply, and said the 3rd switch closure; When the compressor of said air conditioner does not need heat supply; Said the 3rd switch breaks off, wherein, and the switch in the compressor heat supplying loop that said the 3rd switch is said air conditioner.
7. circuit according to claim 1 is characterized in that, said control unit is the CPU of said air conditioner.
8. an air conditioner is characterized in that, comprises the discharge circuit of each described bus capacitor in the claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200666362U CN202444254U (en) | 2012-02-27 | 2012-02-27 | Air conditioner and discharge circuit of air conditioner bus capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200666362U CN202444254U (en) | 2012-02-27 | 2012-02-27 | Air conditioner and discharge circuit of air conditioner bus capacitor |
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| Publication Number | Publication Date |
|---|---|
| CN202444254U true CN202444254U (en) | 2012-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200666362U Withdrawn - After Issue CN202444254U (en) | 2012-02-27 | 2012-02-27 | Air conditioner and discharge circuit of air conditioner bus capacitor |
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| CN (1) | CN202444254U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296663A (en) * | 2012-02-27 | 2013-09-11 | 珠海格力电器股份有限公司 | Air conditioner and discharging circuit and discharging control method of air conditioner bus capacitor |
| CN103855701A (en) * | 2012-11-30 | 2014-06-11 | 国家电网公司 | Discharging device o and discharging system of capacitor |
| CN103887784A (en) * | 2012-12-20 | 2014-06-25 | 北汽福田汽车股份有限公司 | DC-bus-capacitor discharge device of motor controller used for electric vehicle and electric vehicle |
| CN109869879A (en) * | 2019-03-06 | 2019-06-11 | 珠海格力电器股份有限公司 | Air conditioner control circuit and its discharge circuit |
| CN111049366A (en) * | 2019-12-05 | 2020-04-21 | 珠海格力电器股份有限公司 | Bus capacitor discharge circuit after power failure of servo driver, control method and servo driver |
| CN111342432A (en) * | 2020-02-25 | 2020-06-26 | 深圳市禾望科技有限公司 | Photovoltaic inverter main circuit |
| CN114056095A (en) * | 2020-07-31 | 2022-02-18 | 比亚迪股份有限公司 | Storage medium, vehicle and capacitance leakage processing method and system thereof |
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2012
- 2012-02-27 CN CN2012200666362U patent/CN202444254U/en not_active Withdrawn - After Issue
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296663A (en) * | 2012-02-27 | 2013-09-11 | 珠海格力电器股份有限公司 | Air conditioner and discharging circuit and discharging control method of air conditioner bus capacitor |
| CN103296663B (en) * | 2012-02-27 | 2016-10-05 | 珠海格力电器股份有限公司 | The discharge circuit of air-conditioner and air-conditioner bus capacitor and discharge control method |
| CN103855701A (en) * | 2012-11-30 | 2014-06-11 | 国家电网公司 | Discharging device o and discharging system of capacitor |
| CN103855701B (en) * | 2012-11-30 | 2016-07-27 | 国家电网公司 | The electric discharge device of capacitor and discharge system |
| CN103887784A (en) * | 2012-12-20 | 2014-06-25 | 北汽福田汽车股份有限公司 | DC-bus-capacitor discharge device of motor controller used for electric vehicle and electric vehicle |
| CN103887784B (en) * | 2012-12-20 | 2017-03-15 | 北汽福田汽车股份有限公司 | Electric machine controller for motor vehicle dc-link capacitance bleeder and electric automobile |
| CN109869879A (en) * | 2019-03-06 | 2019-06-11 | 珠海格力电器股份有限公司 | Air conditioner control circuit and its discharge circuit |
| CN111049366A (en) * | 2019-12-05 | 2020-04-21 | 珠海格力电器股份有限公司 | Bus capacitor discharge circuit after power failure of servo driver, control method and servo driver |
| CN111342432A (en) * | 2020-02-25 | 2020-06-26 | 深圳市禾望科技有限公司 | Photovoltaic inverter main circuit |
| CN111342432B (en) * | 2020-02-25 | 2022-01-11 | 深圳市禾望科技有限公司 | Photovoltaic inverter main circuit |
| CN114056095A (en) * | 2020-07-31 | 2022-02-18 | 比亚迪股份有限公司 | Storage medium, vehicle and capacitance leakage processing method and system thereof |
| CN114056095B (en) * | 2020-07-31 | 2023-06-13 | 比亚迪股份有限公司 | Storage medium, vehicle and capacitance release processing method and system thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120919 Effective date of abandoning: 20161005 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |