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Dry burning protection control system and control method for PTC (Positive Temperature Coefficient) electric heater of automobile air conditioner

A technology for automotive air conditioners and electric heaters, applied in heating/cooling equipment, vehicle components, air handling equipment, etc., can solve the problems of high cost, long response time, poor effect, etc., and achieve low cost, high reliability and hardware. Arrange simple effects

Pending Publication Date: 2022-07-22
陕西泰德汽车空调有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] An object of the present invention is to provide a dry-burning protection control system for PTC electric heaters of automobile air conditioners, which solves the problems of long response time, poor effect and high cost of existing dry-burning protection methods

Method used

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  • Dry burning protection control system and control method for PTC (Positive Temperature Coefficient) electric heater of automobile air conditioner
  • Dry burning protection control system and control method for PTC (Positive Temperature Coefficient) electric heater of automobile air conditioner
  • Dry burning protection control system and control method for PTC (Positive Temperature Coefficient) electric heater of automobile air conditioner

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Embodiment Construction

[0026] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] The dry burning protection control system of the PTC electric heater for the automobile air conditioner of the present invention is structured as follows figure 1 As shown, it includes an automobile air-conditioning controller 1, the I / O input end of the automobile air-conditioning controller 1 is connected to the PTC electric heater 3, the PTC electric heater 3 is arranged with a PTC temperature sensor 2 on the surface, and the automobile air-conditioning controller 1 is respectively electrically connected to the PTC high voltage Contactor 4, heating and cooling damper actuator 5, blower speed control module 6, mode damper actuator 7, circulation damper actuator 8, instrument panel alarm 9.

[0028] The PTC temperature sensor 2 adopts an NTC temperature sensor, which is used to collect the temperature of the surface of the PTC electric ...

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Abstract

The invention discloses an automobile air conditioner PTC electric heater dry burning protection control system which comprises an automobile air conditioner controller, the I / O input end of the automobile air conditioner controller is connected with a PTC electric heater, and a PTC temperature sensor is arranged on the surface of the PTC electric heater. The automobile air conditioner controller is electrically connected with the PTC high-voltage contactor, the cold and warm air door actuator, the air blower speed regulation module, the mode air door actuator, the circulating air door actuator and the instrument panel alarm. The dry burning protection control method for the PTC electric heater has the advantages of being good in feasibility, higher in efficiency, processized in operation and capable of shortening the response time of the controller, and the problems that an existing dry burning protection method is long in response time, poor in effect and high in cost are solved.

Description

technical field [0001] The invention belongs to the technical field of pure electric vehicle air conditioners, relates to a dry burning protection control system for a PTC electric heater of an automobile air conditioner, and also relates to a dry burning protection control method for a PTC electric heater of an automobile air conditioner. Background technique [0002] At present, the air-conditioning and heating systems of A00-class pure electric vehicles mostly use air-heated PTC electric heaters. When the PTC electric heater is heated, the on-off of the PTC high-voltage power supply is realized through the high-voltage contactor, and the on-off control of the high-voltage contactor is completed by the air-conditioning controller. When the high-voltage contactor is energized and disconnected, the voltage is relatively high, and an arc will be generated during the disconnection process, resulting in a limited number of switching times of the high-voltage contactor. Under c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60H1/22B60H1/00
CPCB60H1/2215B60H1/2218B60H1/00642B60H1/00392B60H1/00585B60H2001/2231
Inventor 张毅刘曦邓笑琛安乐
Owner 陕西泰德汽车空调有限公司
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