Matching structure of starter, protector and shell of refrigeration compressor motor

Abstract

The invention relates to a matching structure of a starter, a protector and a shell of a refrigeration compressor motor, belonging to the technical field of refrigeration compressor motor protectors. The matching structure of the starter, the protector and the shell of the refrigeration compressor motor comprises a shell body and a starter, wherein the starter is arranged on the shell body and provided with a first pin, a second pin and a third pin; the shell body is provided with a first wall body, a second wall body, a third wall body, a fourth wall body and a square-shaped cavity which is formed by mutually encircling the first wall body, the second wall body, the third wall body and the fourth wall body and is through up and down; and the protector is embedded in the cavity. The invention has the advantages that the starter can be embedded in the cavity in a modularized mode because the shell body is formed by encircling the first wall body, the second wall body, the third wall body and the fourth wall body which together form the up-and-down through cavity, and thus miniaturization is facilitated to be embodied, installation is convenient and structural simplification is facilitated.

Description

technical field [0001] The invention belongs to the technical field of protection devices for refrigeration compressor motors, and in particular relates to a coordination structure between a refrigeration compressor motor starter, a protector and a housing. Background technique [0002] As is well known in the industry, a starter is connected in series in the starting circuit of the refrigeration compressor, which uses the positive temperature coefficient thermistor of the protector to be in a conduction state with a small resistance at normal temperature, but when the compressor When the motor is energized and started, the current passes through the positive temperature coefficient thermistor and the insert corresponding to the positive temperature coefficient thermistor to connect the starting current of the compressor, so that the refrigeration compressor motor starts, and at the same time when the compressor motor starts In an instant, the current flowing through the pos...

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Problems solved by technology

[0005] However, the overall volume of the above-mentioned patent (ZL200620077113.2) is still relatively large. For this, please refer to the accompanying drawing 3 of the description of the patent. The schematic extension is formed on the base The motor protector seat on the left side makes the structure shown in the patent non-modular. However, modular refrigeration compressor motor starters and protectors are increasingly valued by people. However, in the patents and non-patent literature that have been published so far There is no corresponding technical enlightenment in the above, so the applicant has carried out active design and attempts, and the technical solution to be introduced below is based on this premise.

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