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Device and method for detecting automobile air-conditioning system in low-temperature environment

A technology for automotive air-conditioning systems and low-temperature environments. It is applied to vehicle parts, transportation and packaging, and air handling equipment. It can solve problems such as long detection time, affecting user experience, and inability to keep the air conditioner running for a long time, and achieves a small footprint. , convenient and rapid detection effect

Pending Publication Date: 2020-07-17
DONGFENG COMML VEHICLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the engine water temperature rises very slowly at low temperatures, this method takes a long time to detect, consumes a lot of fuel, and cannot keep the air conditioner running for a long time
[0005] In actual implementation, some OEMs do not test the air conditioning function of vehicles assembled in winter, thus leaving quality problems
The fault will be exposed when the user uses the air conditioner in the coming summer, affecting the user experience

Method used

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  • Device and method for detecting automobile air-conditioning system in low-temperature environment
  • Device and method for detecting automobile air-conditioning system in low-temperature environment

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] Such as figure 1 As shown, a detection device for an automobile air-conditioning system in a low-temperature environment of the present invention includes an external hot air source, and the external hot air source is connected to the outer circulation air inlet of the automobile air conditioner through the air duct 5, and the hot air from the external hot air source is introduced into the air outlet through the air duct 5. The air inlet of the car air conditioner is externally circulated to provide hot air for the car air conditioner.

[0026] combine figure 2 As shown, the external hot air source includes a coolant heating tank 1, a radiator 4 and a fan 3, and the water inlet and outlet of the coolant heating tank 1 and the radiator 4 are connected through a water pump 2 and a water pipe to form a liquid flow circuit; the fan 3 is ar...

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PUM

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Abstract

The invention relates to a device and method for detecting an automobile air conditioning system in a low-temperature environment. The device comprises an external hot air source, wherein the externalhot air source is connected with an automobile air conditioner external circulation air inlet through an air duct, and hot air of the external hot air source is introduced into the automobile air conditioner external circulation air inlet through the air duct to provide hot air for an automobile air conditioner. The external hot air source is connected with the external circulation air inlet of the automobile air conditioner through the air duct and provides hot air for the automobile air conditioner, and it is guaranteed that the automobile air conditioner system can be started in a low-temperature environment to detect functions of the system. The occupied space is small, detection is convenient and rapid, and the production takt is not influenced.

Description

technical field [0001] The invention relates to an automobile air-conditioning system, in particular to a detection device and a detection method for an automobile air-conditioning system in a low-temperature environment. Background technique [0002] The automotive air conditioning system, like the household air conditioner, works on the principle that the phase change of the refrigerant is accompanied by heat absorption and heat release. When the air conditioner is running, condensed water will be discharged from the room, so the temperature inside the machine should not be lower than 0°C, otherwise the condensed water will freeze and block the air duct. All air-conditioning systems have a low-temperature protection mechanism and cannot be turned on when the temperature is lower than 0°C. This means that in winter when the ambient temperature is low, we cannot detect whether the cooling function of the air conditioning system is normal. [0003] For smaller household air...

Claims

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Application Information

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IPC IPC(8): B60H1/00
CPCB60H1/00585
Inventor 陈颖赵庆福刘湘华陈再霖石光勇刘洪浩张明鲁云松宋玉斌
Owner DONGFENG COMML VEHICLE CO LTD
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