CN209892409U

CN209892409U - Cylinder cover for refrigeration compressor

Info

Publication number: CN209892409U
Application number: CN201920229938.9U
Authority: CN
Inventors: 张勤建; 李俊杰; 朱沈瑾; 张韦林; 陈庆杰
Original assignee: Jiaxipera Compressor Co Ltd
Current assignee: Jiaxipera Compressor Co Ltd
Priority date: 2019-02-22
Filing date: 2019-02-22
Publication date: 2020-01-03
Anticipated expiration: 2029-02-22

Abstract

The utility model discloses a cylinder cover for a refrigeration compressor, which comprises a cover body, an air inlet, exhaust chambers and partition plates, wherein the cover body is provided with a plurality of exhaust chambers which are separated by the partition plates; the partition board is provided with a notch, and the exhaust chambers are communicated together through the notch; the surface of the cylinder cover is also provided with a plurality of hollow areas. The utility model discloses can effectively reduce the area of contact between cylinder head and the valve plate to reduce the heat transfer who comes from the valve plate through the fretwork design, reduced the heating of high-temperature gas to the cylinder head, thereby reduced the heating effect to gas, improved the wholeness ability of compressor, simple structure is practical.

Description

Cylinder cover for refrigeration compressor

Technical Field

The utility model belongs to the technical field of the compressor technique and specifically relates to a cylinder head for compressor.

Background

Most of the existing compressors are piston compressors, which change the working volume of a cylinder by means of the reciprocating motion of a piston. The compressor has the working principle that low-temperature and low-pressure refrigerant gas is sucked from the air suction pipe, the piston is driven by the operation of the motor to compress the refrigerant gas, and then the high-temperature and high-pressure refrigerant gas is discharged to the exhaust pipe to provide power for the refrigeration cycle, so that the refrigeration cycle is realized.

The performance of the compressor is an important index for inspecting the compressor. The COP (coefficient of performance) of the compressor refers to the ratio of the refrigerating capacity to the input power, the performance index of the compressor can be visually shown, and the refrigerating capacity of the compressor with the same power is larger when the energy efficiency ratio is higher.

When the existing compressor works, the piston does violent reciprocating motion in the cylinder hole in a short time. During this movement, a large amount of heat is instantaneously generated, and a part of the heat is transferred to the cylinder head to heat the cylinder head. After the air suction muffler sucks air from the outside, the incoming air is heated by the cylinder cover with higher temperature, so that the temperature of the air is increased, the refrigerant entering the compressor under the condition of the same volume is reduced, the refrigerating capacity is reduced, the working performance of the compressor is difficult to ensure, the reliability is poor, and the service life of the compressor is shortened finally.

Disclosure of Invention

The utility model aims to solve the technical problem that a reducible refrigerating compressor cylinder cap by the produced heat transfer of piston motion in the cylinder hole is put forward.

In order to solve the technical problem, the utility model relates to a cylinder head for refrigeration compressor includes lid, air inlet, exhaust chamber and baffle, be equipped with a plurality ofly on the lid the exhaust chamber, each pass through between the exhaust chamber the baffle separates, the notch has been seted up on the baffle, each the exhaust chamber passes through the notch intercommunication is in the same place.

According to the cylinder cover for the refrigeration compressor, the hollow areas are arranged on the surface of the cylinder cover.

The utility model discloses the cylinder head is owing to adopt above-mentioned technical structure, and it is guaranteeing under the circumstances of leakproofness and function, has reduced the area of contact between cylinder head and the valve plate. Meanwhile, the hollow design is adopted on the surface of the cylinder cover, so that the heat transfer from the valve plate is reduced as much as possible, the heating of high-temperature gas in the high-pressure cavity to the cylinder head is effectively reduced, the heating effect on the gas is reduced, and the overall reliability and efficiency ratio of the compressor are improved. Compared with the prior art, the utility model discloses not only can effectively reduce thermal transmission, structural more simple and practical moreover.

Drawings

Fig. 1 is a schematic view of the external structure of the cylinder head of the present invention;

fig. 2 is a schematic view of the internal structure of the cylinder head according to the present invention;

fig. 3 is a schematic structural view of the cylinder head according to another side direction of the present invention.

Detailed Description

As shown in fig. 1 and 2, the cylinder head of the present invention includes a cover 5, an intake port 1, an exhaust chamber 2, and a partition 3. Referring to fig. 3, the cover 5 is provided with a plurality of exhaust chambers 2, the exhaust chambers 2 are separated by partitions 3, and each partition 3 is provided with a notch 6 for allowing gas to flow between the exhaust chambers 2, so as to connect the exhaust chambers 2 together. In order to reduce the heat transfer, a plurality of hollow areas 4 are arranged on the surface of the cover body 5. In use, gas enters the interior of the compressor from the suction pipe of the compressor and then enters the suction muffler. After passing through the inlet port 1, the incoming gas enters the compressor cylinder through the valve plate of the compressor. The gas coming out of the cylinder enters the discharge chamber 2 and is finally discharged through the discharge pipe of the compressor. The utility model discloses under the prerequisite of guaranteeing the cylinder head gas tightness, reduced as far as possible with the area of contact of valve plate to reduce thermal transmission, reduced the heating effect to the suction gas.

Claims

1. A cylinder head for a refrigeration compressor comprises a cover body, an air inlet and an exhaust chamber, and is characterized by also comprising a partition plate, wherein the cover body is provided with a plurality of exhaust chambers which are separated by the partition plate; the partition plate is provided with notches, and the exhaust chambers are communicated together through the notches.

2. A cylinder head for a refrigeration compressor as claimed in claim 1, wherein a plurality of hollowed-out areas are provided on the surface of said cylinder head.