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Automobile air conditioner pressure sensor

A technology of pressure sensor and automobile air conditioner, which is applied in the direction of measuring fluid pressure, instruments, vehicle parts, etc. It can solve the problems of pressure chip damage, pressure sensor joints of single type, and different sizes, so as to achieve good self-protection ability and improve the scope of application. Effect

Active Publication Date: 2018-09-28
浙江好亚电控系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a pressure sensor for an automobile air conditioner to solve the problems in the above-mentioned background art that when the input pressure of the refrigerant pipeline is too high, the pressure chip is easily damaged due to excessive pressure, and the joints of the pressure sensor have a single model and are different. The size of the type automotive refrigerant pressure pipes is different, and the pressure sensor with a single joint model has a low application range

Method used

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  • Automobile air conditioner pressure sensor
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  • Automobile air conditioner pressure sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The preparation method of resin type nano thermal conductive composite material includes the following steps:

[0030] Step 1. Weigh a certain mass of epoxy resin and curing agent PSPA, the mass ratio of the two is 2:1, and mix in a high-speed mixer at 800 r / min for 2 minutes to make epoxy matrix and curing agent PSPA Mix well

[0031] Step 2. Then add Al 2 O 3 @ZnO core-shell nanofiller is added to the mixture of epoxy resin and curing agent (filler and epoxy resin mass ratio 3:7), and mixed again for 2 min at 1000 r / min;

[0032] Step 3. Pour the mixture into a cylindrical mold with a diameter of 30mm that is pre-coated with oleic acid as a release agent. Place the mold in a vacuum drying oven and draw a vacuum to allow bubbles in the mixture to escape and set the curing temperature It is 60℃, curing time is 4h;

[0033] Step 4. After the curing is completed, demoulding treatment is performed, and the upper and lower surfaces of the cured product are ground flat to obtain th...

Embodiment 2

[0038] Step 2. Then add Al 2 O 3 @ZnO core-shell nano-filler was added to the mixture of epoxy resin and curing agent (filler and epoxy resin mass ratio 1:2), and mixed again at 1000 r / min for 2 min; other preparations were the same as in Example 1.

Embodiment 3

[0040] Step 2. Then add Al 2 O 3 @ZnO core-shell nanofiller was added to the mixture of epoxy resin and curing agent (filler and epoxy resin mass ratio 3:5), and mixed again at 1000 r / min for 2 min; the rest of the preparation was the same as in Example 1.

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PUM

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Abstract

The invention discloses an automobile air conditioner pressure sensor which comprises a first pore plate. Screwed joint grooves are formed in the first pore plate. Screwed joints are arranged on the inner sides of the screwed joint grooves. Fixing screws are installed on the screwed joints. The screwed joints are fixedly connected with the first pore plate through the fixing screws. A connecting pipe is arranged on the side, away from the screwed joints, of the first pore plate. A valve body is installed on the connecting pipe. A valve element barrel is arranged in the valve body. A gear column is arranged at the top end of the valve element barrel. An outer box is arranged at the top end of the first pore plate. The valve body is arranged, the gear column is driven by a gear installed ona motor to rotate, so that the valve element barrel in the valve body rotates, when the pressure of a coolant is too large, the valve element barrel rotates, so that the pressure of the coolant is cutoff through the valve body, the problem that a pressure chip is damaged due to the fact that the pressure chip bears too large pressure is solved, and the pressure sensor has good self-protection capacity.

Description

Technical field [0001] The invention belongs to the technical field of automobiles, and specifically relates to an automobile air conditioner pressure sensor. Background technique [0002] Auto air conditioner pressure sensor is a conventional sensor on the car. It is used to detect the refrigerant pressure of the car air conditioner, convert the pressure value to the corresponding voltage value, and send the continuous pressure signal to the car's ECU (Electronic Control Unit). The signal can be used by the ECU to control the power of the automobile air-conditioning compressor. [0003] However, the current automotive air-conditioning pressure sensors on the market are not effective. When the input pressure of the refrigerant pipeline is too large, the pressure chip is easily damaged due to the excessive pressure. The pressure sensor has a single joint model and the size of different types of automotive refrigerant pressure pipelines Different, the pressure sensor with a single j...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60H1/00G01L11/00
CPCB60H1/00G01L11/00
Inventor 童彩琪张光华
Owner 浙江好亚电控系统有限公司