CN204436765U - A kind of precharge protective gear of passenger car variable-frequency air conditioner direct current compressor - Google Patents
A kind of precharge protective gear of passenger car variable-frequency air conditioner direct current compressor Download PDFInfo
- Publication number
- CN204436765U CN204436765U CN201420772809.1U CN201420772809U CN204436765U CN 204436765 U CN204436765 U CN 204436765U CN 201420772809 U CN201420772809 U CN 201420772809U CN 204436765 U CN204436765 U CN 204436765U
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- Prior art keywords
- air
- precharge
- frequency
- conditioner
- air conditioner
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Abstract
The utility model provides a kind of precharge protective gear of passenger car variable-frequency air conditioner direct current compressor; comprise air-conditioner controller and pre-charging device; pre-charge circuit is provided with in pre-charging device; pre-charge circuit comprises air conditioner power source control contactor (1K), high tension fuse (F1), current-limiting resistance (R1), the filter capacitor (C1) for charging of connecting successively, and the precharge control contactor (2K) controlled by air-conditioner controller is connected in parallel on the two ends of high tension fuse (F1) and current-limiting resistance (R1).The utility model ensure that DC frequency-changeable compressor is reliable and stable, makes DC inverter air-conditioner can adapt to the power supply environment of pure electric coach complexity, decreases the interference of air-conditioning to car load power supply simultaneously.
Description
Technical field
The utility model relates to charge protection device, is specifically related to a kind of precharge protective gear of passenger car variable-frequency air conditioner direct current compressor.
Background technique
Current pure electric coach air-conditioning great majority adopt AC compressor, and volume is large, Heavy Weight, energy consumption are high.Certain novel automobile DC permanent magnet frequency-changeable compressor has that volume is little, lightweight, the advantage of high energy efficiency, but occurs compressor controller burnout problems in pure electric coach air condition application process.Mainly because at powered on moment and improper blocking interval, starting of air conditioner process occurs that big current or high voltage have exceeded the ability to bear of control circuit.The application of precharge protective gear can play reasonable protective action to this compressor, and can increase the interference rejection ability of compressor.
Model utility content
The technical problems to be solved in the utility model is the precharge protective gear providing a kind of passenger car variable-frequency air conditioner direct current compressor, to solve prior art Problems existing.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of precharge protective gear of passenger car variable-frequency air conditioner direct current compressor; comprise air-conditioner controller and pre-charging device; pre-charge circuit is provided with in pre-charging device; pre-charge circuit comprise connect successively air conditioner power source control contactor 1K, high tension fuse F1, current-limiting resistance R1, filter capacitor C1 for charging, the precharge control contactor 2K controlled by air-conditioner controller is connected in parallel on the two ends of high tension fuse F1 and current-limiting resistance R1.
Pre-charging device comprises high input voltage interface, High voltage output interface and low voltage control interface.
Described high input voltage interface is connected with high-tension distribution box, and High voltage output interface is connected with DC frequency-changeable compressor controller; Described low voltage control interface is connected with air-conditioner controller.
Described air-conditioner controller is connected by CAN with DC frequency-changeable compressor controller M.
The utility model ensure that DC frequency-changeable compressor is reliable and stable, makes DC inverter air-conditioner can adapt to the power supply environment of pure electric coach complexity, decreases the interference of air-conditioning to car load power supply simultaneously.
Accompanying drawing explanation
Fig. 1 is circuit structure diagram of the present utility model.
Fig. 2 is the connection diagram that pre-charging device of the present utility model is applied in air-conditioning.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
It should be noted that, when not conflicting, the feature in embodiment of the present utility model and embodiment can combine mutually.
See Fig. 1, the precharge protective gear of a kind of passenger car variable-frequency air conditioner direct current compressor of the present embodiment, comprise air-conditioner controller and pre-charging device, pre-charge circuit is provided with in pre-charging device, pre-charge circuit comprises the air conditioner power source control contactor 1K, high tension fuse F1, current-limiting resistance R1, the filter capacitor C1 that connect successively, and the precharge control contactor 2K controlled by air-conditioner controller is connected in parallel on the two ends of high tension fuse F1 and current-limiting resistance R1; Pre-charge circuit and high-voltage DC power supply connect and compose and are pre-charged loop, and are connected with DC frequency-changeable compressor controller, control DC frequency-changeable compressor M and carry out work.
Air-conditioner controller has been responsible for the on off control of the contactor 2K to precharge loop, during power-on of air conditioner, the circuit that high-voltage DC power supply consists of current-limiting resistance R1 and filter capacitor C1 charges to filter capacitor C1, when air-conditioner controller detects that the voltage in described precharge loop exceedes predefined value, cut off loop, current-limiting resistance R1 place, air-conditioner controller controls precharge control contactor 2K and closes, and current-limiting resistance R1 loop is by short circuit.
During starting of air conditioner, the filter capacitor C1 of pre-charge circuit realizes momentary charge and voltage stabilizing.During operation of air conditioner, the filter capacitor C1 of pre-charge circuit absorbs the glitch that DC bus passes over, and DC frequency-changeable compressor M is run more stable.
High tension fuse F1 is connected in pre-charge circuit, and the characteristic of big current quick fuse can make it in case of a fault prior to analog line driver fusing, can play protective action timely.
The situation that current-limiting resistance R1 and precharge control contactor 2K can run into successive load short circuit before power-on of air conditioner plays a very good protection, and avoids the fusing that fus is unnecessary.Pre-charge contactor can cut off rapidly in the situation of Abnormal Voltage in Power System, protects the DC frequency-changeable compressor M of rear class timely.After system voltage recovers normally, control system can carry out recovering normal power supply state automatically, improves adaptivity and the reliability of circuit.
See Fig. 2, the interface of pre-charging device comprises high input voltage output interface and low voltage control interface.High input voltage interface is connected with high-tension distribution box, and High voltage output interface is connected with DC frequency-changeable compressor controller.Low voltage control interface is connected with air-conditioner controller, completes the control to precharge control contactor 2K by air-conditioner controller.Air-conditioner controller and DC frequency-changeable compressor controller carry out data transmission by CAN.
Adopt the precharge protective gear that the utility model provides; DC electrical source 400V ~ 700V the wide range input voltage of pure electric coach can be met; in startup air-conditioning moment; the peak voltage that effective restriction DC frequency-changeable compressor controller exports and inrush current; the coupling of electric capacity C1 and DC frequency-changeable compressor M after filtering; motor is suppressed to turn off suddenly the self induction electromotive force of generation; prevent the electrical breakdown of DC frequency-changeable compressor smd controller, the Primary Component of protection DC frequency-changeable compressor controller.By the setting of control flow, add closed loop control, the DC frequency converting air-conditioner compressor stability that it runs under the protection of pre-charging device, reliability and antijamming capability strengthen, and the risk that air-conditioning system is run reduces greatly.
Claims (4)
1. the precharge protective gear of a passenger car variable-frequency air conditioner direct current compressor; it is characterized in that: comprise air-conditioner controller and pre-charging device; pre-charge circuit is provided with in pre-charging device; pre-charge circuit comprises air conditioner power source control contactor (1K), high tension fuse (F1), current-limiting resistance (R1), the filter capacitor (C1) for charging of connecting successively, and the precharge control contactor (2K) controlled by air-conditioner controller is connected in parallel on the two ends of high tension fuse (F1) and current-limiting resistance (R1).
2. the precharge protective gear of passenger car variable-frequency air conditioner direct current compressor according to claim 1, is characterized in that: pre-charging device comprises high input voltage interface, High voltage output interface and low voltage control interface.
3. the precharge protective gear of passenger car variable-frequency air conditioner direct current compressor according to claim 2, is characterized in that: described high input voltage interface is connected with high-tension distribution box, and High voltage output interface is connected with DC frequency-changeable compressor controller; Described low voltage control interface is connected with air-conditioner controller.
4. the precharge protective gear of passenger car variable-frequency air conditioner direct current compressor according to claim 1, is characterized in that: described air-conditioner controller is connected by CAN with DC frequency-changeable compressor controller (M).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420772809.1U CN204436765U (en) | 2014-12-10 | 2014-12-10 | A kind of precharge protective gear of passenger car variable-frequency air conditioner direct current compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420772809.1U CN204436765U (en) | 2014-12-10 | 2014-12-10 | A kind of precharge protective gear of passenger car variable-frequency air conditioner direct current compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204436765U true CN204436765U (en) | 2015-07-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420772809.1U Expired - Fee Related CN204436765U (en) | 2014-12-10 | 2014-12-10 | A kind of precharge protective gear of passenger car variable-frequency air conditioner direct current compressor |
Country Status (1)
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| CN (1) | CN204436765U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105897021A (en) * | 2016-05-23 | 2016-08-24 | 李灵超 | Inverter |
| CN108068835A (en) * | 2017-12-15 | 2018-05-25 | 石家庄国祥运输设备有限公司 | A kind of preliminary filling electric control system applied to track traffic air-conditioning frequency conversion system |
| CN108099679A (en) * | 2018-01-17 | 2018-06-01 | 北京首钢国际工程技术有限公司 | A kind of electrical control gear of heavy-load transport vehicle |
| CN108454407A (en) * | 2017-12-29 | 2018-08-28 | 北汽（常州）汽车有限公司 | The electric automobile air-conditioning system electrification control method of the resistance of preliminary filling containing air-conditioning |
| CN111016655A (en) * | 2019-12-16 | 2020-04-17 | 珠海格力电器股份有限公司 | Charging control circuit and method for air conditioner of electric automobile and voltage detection method |
| CN112984739A (en) * | 2021-04-08 | 2021-06-18 | 珠海格力电器股份有限公司 | Air conditioner control method, air conditioner control device, air conditioner and storage medium |
| CN113212096A (en) * | 2020-01-17 | 2021-08-06 | 比亚迪股份有限公司 | Power-on control method of vehicle air conditioner, vehicle and computer-readable storage medium |
-
2014
- 2014-12-10 CN CN201420772809.1U patent/CN204436765U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105897021A (en) * | 2016-05-23 | 2016-08-24 | 李灵超 | Inverter |
| CN108068835A (en) * | 2017-12-15 | 2018-05-25 | 石家庄国祥运输设备有限公司 | A kind of preliminary filling electric control system applied to track traffic air-conditioning frequency conversion system |
| CN108454407A (en) * | 2017-12-29 | 2018-08-28 | 北汽（常州）汽车有限公司 | The electric automobile air-conditioning system electrification control method of the resistance of preliminary filling containing air-conditioning |
| CN108099679A (en) * | 2018-01-17 | 2018-06-01 | 北京首钢国际工程技术有限公司 | A kind of electrical control gear of heavy-load transport vehicle |
| CN108099679B (en) * | 2018-01-17 | 2024-02-09 | 北京首钢国际工程技术有限公司 | Electrical control device of heavy-load transport vehicle |
| CN111016655A (en) * | 2019-12-16 | 2020-04-17 | 珠海格力电器股份有限公司 | Charging control circuit and method for air conditioner of electric automobile and voltage detection method |
| CN111016655B (en) * | 2019-12-16 | 2021-03-19 | 珠海格力电器股份有限公司 | Charging control circuit and method for air conditioner of electric automobile and voltage detection method |
| CN113212096A (en) * | 2020-01-17 | 2021-08-06 | 比亚迪股份有限公司 | Power-on control method of vehicle air conditioner, vehicle and computer-readable storage medium |
| CN112984739A (en) * | 2021-04-08 | 2021-06-18 | 珠海格力电器股份有限公司 | Air conditioner control method, air conditioner control device, air conditioner and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150701 Termination date: 20181210 |