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Power supply control circuit and vehicle air conditioner

A technology of power supply control circuit and vehicle air conditioner, which is applied in the direction of battery circuit device, control/regulation system, electric vehicle, etc. It can solve the problems of unfavorable production and use, compressor cost, large volume of compressor, and high pressure resistance requirements of inverter circuit, etc.

Active Publication Date: 2022-06-28
GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the on-board battery-powered air conditioners in gasoline vehicles are directly driven by batteries, and the compressors in the air conditioners are also driven by battery voltage. However, using battery voltage to directly drive the compressor requires a very large current, making the compressor It is necessary to use very thick copper wires for winding, resulting in a large compressor cost and volume, which is not conducive to production use, and there is a load dump voltage in the car, the maximum value of which is 5% of the battery voltage ~10 times, if the power supply circuit is connected with an inverter circuit, the requirements for the voltage resistance of the inverter circuit are relatively high, and a voltage suppression circuit must be used for protection

Method used

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  • Power supply control circuit and vehicle air conditioner
  • Power supply control circuit and vehicle air conditioner
  • Power supply control circuit and vehicle air conditioner

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Effect test

Embodiment 1

[0040] like figure 1 As shown, according to the embodiment of the first aspect of the present invention, a power supply control circuit 100 is proposed, the circuit includes: a booster circuit 102 for voltage conversion of the power supply voltage to be input to the load.

[0041] Specifically, the boost circuit 102 includes a voltage doubling component 1022, and the voltage doubling component 1022 is configured to store or release the supply voltage provided by the input terminal of the boost circuit 102, wherein the voltage doubling component 1022 is provided with at least two groups, at least two sets of voltage doubling groups Components 1022 are interconnected.

[0042] In the power supply control circuit 100 provided in this embodiment, considering that the battery of the car is charged by the generator built in the car, when the battery is suddenly disconnected from the generator during the operation of the generator, the generator, which is an inductive device, is in t...

Embodiment 2

[0044] like figure 1 As shown, according to an embodiment of the present invention, in addition to the features defined in the above embodiments, the booster circuit 102 further includes a switching device 1024 and an energy storage component 1026 .

[0045] Specifically, the switching device 1024 is connected to the voltage doubling component 1022, and is configured to control the voltage doubling component 1022 to be turned on or off, one end of the energy storage component 1026 is connected to the voltage doubling component 1022, and the other end of the energy storage component 1026 is connected to the boost circuit The output terminal of 102 is connected, and the energy storage component 1026 is configured to boost and convert the supply voltage released by the voltage doubling component 1022 and transmit it to the output terminal of the boost circuit 102 .

[0046] In this embodiment, the switching device 1024 is connected to the voltage doubling component 1022 and is us...

Embodiment 3

[0048] like figure 1 and figure 2 As shown, according to an embodiment of the present invention, a power supply control circuit 100 is proposed, which includes: a booster circuit 102 , a power supply 104 , an inverter circuit 106 and a controller 108 .

[0049] Specifically, the power supply 104, the inverter circuit 106, and the controller 108 are connected to the boost circuit 102, the power supply 104 is configured to provide a supply voltage, and the inverter circuit 106 is configured to control the power supply signal to supply power to the load according to the converted voltage, and control the The controller 108 is configured to output a control command and control the boost circuit 102 to work according to a preset switching frequency and duty cycle.

[0050] In this embodiment, the power supply 104 is used to provide electrical energy to the load. Specifically, the voltage of the power supply 104 is boosted by the booster circuit 102 to obtain a DC high voltage, wh...

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PUM

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Abstract

The invention provides a power supply control circuit and a vehicle air conditioner. Wherein, the power supply control circuit includes: a boost circuit, the boost circuit is configured to perform voltage conversion on the power supply voltage to be input to the load, and the boost circuit specifically includes: a voltage doubler component, the voltage doubler component is configured to store or release the boost circuit The power supply voltage provided by the input terminal, wherein at least two groups of voltage multiplying components are provided, and at least two groups of voltage multiplying components are connected to each other. The power supply control circuit provided by the present invention, on the one hand, realizes the ability to absorb the load dump energy, saves the voltage suppression circuit, and avoids the additional cost caused by the device; The voltage rises to provide electric energy for subsequent loads, which solves the problems caused by using low voltage to drive loads.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a power supply control circuit and a vehicle air conditioner. Background technique [0002] At present, the on-board battery-powered air conditioners in gasoline vehicles are directly driven by batteries, and the compressors in the air conditioners are also driven by battery voltage. However, using battery voltage to directly drive the compressor requires a very large current, which makes the compressor It is necessary to use a very thick copper wire for winding, resulting in a large compressor cost and a large volume of the compressor, which is not conducive to production and use, and there is a load dump voltage in the car. The maximum value of the load dump voltage is 5 of the battery voltage. ~10 times, if the power supply circuit is connected with an inverter circuit, the voltage resistance of the inverter circuit is required to be higher, and a voltage suppression ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/155H02J7/00B60R16/033B60H1/00
CPCH02M3/155B60R16/033B60H1/00642H02M3/1552
Inventor 霍兆镜
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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