Electronic expansion valve and insertion component thereof

Abstract

The invention provides an electronic expansion valve and an insertion component thereof capable of preventing the short circuit caused by collision among terminals, and improving the using reliability. The insertion component comprises a connection socket and a contact pin, wherein the connection socket is hermetically connected with a shell of the electronic expansion valve, the contact pin is connected with an external control piece, and a valve chamber of a motor is built-in in the shell; the connection socket is provided with a sealing cavity communicated with the valve chamber, the sealing cavity is sleeved with an insulation sleeve, the insulation sleeve is provided with mounting positions corresponding to the terminals of the motor and all the mounting positions are alternately connected in an insulation way; the insulation sleeve is further provided with a connecting hole provided for the contact pin to pass through, one end of the contact pin penetrates through the connecting hole and is connected with the terminal, and the other end of the contact pin protrudes out the sealing cavity so as to form a connecting end used for being connected with the external control piece. All terminals of the insulation sleeve provided by the invention are provided with the corresponding positions, so that all the terminals are separated mutually, the short circuit caused by the touch collision among the terminals can be prevented, and the electronic expansion valve and the insertion component are safer and reliable to use.

Description

technical field [0001] The invention relates to the technical field of valve body connection, in particular to a plug assembly of an electronic expansion valve. The present invention also relates to an electronic expansion valve using the above-mentioned plug-in assembly. Background technique [0002] As the shortcomings of thermal expansion valves become more and more obvious, electronic expansion valves are increasingly used in existing large refrigeration units. [0003] Please refer to figure 1 , figure 1 It is a schematic cross-sectional structure diagram of an arrangement mode of an electronic expansion valve in the prior art. [0004] The existing electronic expansion valve includes a casing 01 and a cover 02. The cover 02 is screwed to the end of the casing 01; the casing 01 is set in a hollow structure, and the hollow part constitutes a valve cavity, and the motor 03 is built in the valve cavity; the motor 03 is connected to There is a lead wire 04, which has a ...

AI Technical Summary

Problems solved by technology

[0005] Due to the limited installation space, the distance between the four pins 06 is only about 4mm, and the terminal 05 is connected to one end of the pin 06 sintered and fixed, that is to say, one end of the terminal 05 is fixed, and the maximum distance between each terminal 05 It is only about 4mm; the diameter of terminal 05 is usually about 2.7mm, and the distance between adjacent two terminals 05 is relatively short. When the leads 04 connected to the other end of electronic 05 are entangled with each other, it is easy to Collide with each other, and then produce a short circuit, affecting the normal use of the motor 03

[0006] In addition, the existing electronic expansion valve has many components, and the cover 02 and the shell 01 are assembled through threaded connection, the tightening force is not enough, and there is a risk of refrigerant leakage

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