CN215256699U - Compressor cylinder cover structure for preventing high pressure leakage - Google Patents

Abstract

The utility model discloses a prevent compressor cylinder head structure of high-pressure leakage, including the cylinder head body, be equipped with the ring seal face on the cylinder head body, breathe in chamber and exhaust chamber setting inboard at the ring seal face, be equipped with the division board between chamber and the exhaust chamber of breathing in, the one end that the division board is close to the cylinder is equipped with the sealed face of second, and the ring seal face is in same plane with the sealed face of second, is equipped with the inlet port on the lateral wall of cylinder head body. The utility model provides a prevent compressor cylinder head structure of high pressure leakage both simplifies the mounting means of the muffler of breathing in, can solve the problem of original structure high pressure side leakage again, further improves the performance and the reliability of compressor.

Description

Compressor cylinder cover structure for preventing high pressure leakage

Technical Field

The utility model relates to a refrigeration refrigerator compressor technical field especially relates to a prevent compressor cylinder head structure of high pressure leakage.

Background

The valve group structure of the refrigerator compressor generally comprises parts such as an exhaust valve plate, a valve plate, an air suction valve plate, a cylinder cover, an air suction silencer and the like, wherein the cylinder cover of the refrigerator compressor is used for fixing related parts of the valve group at first, and the parts such as the air suction valve plate, the air suction silencer and the like are fixed at the head of a cylinder of a crankcase of the compressor in a threaded connection mode through the cylinder cover so as to perform work flows such as air suction, compression, air exhaust and the like to promote the refrigeration of the refrigerator; then the related refrigerant gas in the sealing valve group, namely the high-temperature and high-pressure refrigerant gas after the compression of the compressor cylinder is completed is firstly discharged into the cylinder cover, and then is discharged into the compressor through the cylinder cover to discharge the refrigerant gas into the refrigerator for refrigeration. The cylinder cover structure of the existing refrigerator compressor is only provided with an exhaust cavity, a groove is cast at the position where the cylinder cover is fixed with a suction muffler, and the suction muffler is arranged in the groove in a buckling mode and then fixed on a valve plate. The problems brought by the cylinder cover structure are that firstly, the installation of the suction muffler is troublesome, and if the installation is not in place, the suction leakage is easy to cause, thereby affecting the efficiency of the compressor; on the other hand, in the groove portion of the cylinder head, due to structural limitations, when the valve block exhaust gasket is compressed, the exhaust high pressure is easily leaked due to insufficient compression force, and this problem becomes an important factor affecting the reliability life of the compressor.

Disclosure of Invention

The utility model discloses an overcome the easy high-pressure problem of leaking of exhaust chamber and the chamber of admitting air among the prior art among the refrigeration compressor cylinder head, provide a prevent compressor cylinder head structure of high-pressure leakage, both simplified the mounting means of the muffler of breathing in, can solve the problem of original structure high-pressure side leakage again, further improve the performance and the reliability of compressor.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a prevent compressor cylinder head structure of high-pressure leakage, includes the cylinder head body, is equipped with annular seal face, suction chamber and exhaust chamber on the cylinder head body, and suction chamber and exhaust chamber set up at annular seal face inboard, are equipped with the division board between suction chamber and the exhaust chamber, and the division board is close to the one end of cylinder and is equipped with the sealed face of second, and annular seal face and the sealed face of second are in same plane, are equipped with the inlet port on the lateral wall of cylinder head body, and the inlet port communicates with suction chamber.

In the technical scheme, the air suction cavity and the air exhaust cavity are completely separated by the partition plate, when the cylinder cover body is arranged on the cylinder, the annular sealing surface and the second sealing surface are positioned on the same plane and simultaneously press the valve plate, and a good sealing effect can be achieved. In the recess was installed through the form of buckle to the muffler of breathing in among the prior art, compressed tightly the muffler of breathing in through the cylinder head body, and then made the exhaust duct of the muffler of breathing in compress tightly on the valve plate. Because the exhaust pipe of the suction muffler and the cylinder cover body are arranged in a split manner, the size tolerance must exist between the exhaust pipe and the cylinder cover body, and if the exhaust pipe of the suction muffler is tightly pressed on the valve plate, the exhaust pipe of the suction muffler needs to protrude out of the sealing surface of the cylinder cover body, so that the sealing between the exhaust cavity and the valve plate is not tight enough, the high-pressure leakage of exhaust gas is easily caused, and the problem becomes an important factor influencing the reliability and the service life of the compressor. This application sets up a sealed chamber of breathing in through the blast pipe that will breathe in the muffler external at the cylinder head body, and the chamber of breathing in passes through the inlet port and the blast pipe intercommunication of the muffler of breathing in, and the chamber of breathing in itself sets up on the cylinder head body, and through the sealed face of annular seal face and second make its and outside and with exhaust between the chamber sealed inseparabler, solved the problem that prior art exists. In this application, the refrigerant gas that gets into the compressor muffler of breathing in enters into the cylinder head chamber of breathing in at first by inlet channel, then enters into the cylinder by the chamber of breathing in and carries out the work compression, and the high temperature high pressure gas after the compression is discharged into the exhaust chamber, gets into the refrigerator through interior calandria discharge compressor after the buffering. By adopting the integrated cylinder cover design, the leakage problem of the high-pressure side is solved, and the problem that the original silencer is instable to install and the efficiency of the compressor is influenced is solved by the design of a brand-new connection mode of the cylinder cover and the silencer; and secondly, the arrangement of the air suction cavity in the cylinder cover has a buffering effect on the refrigerant entering the compressor valve group, which brings easiness for the noise improvement of the compressor.

Preferably, the side wall of the cylinder cover body is provided with an air inlet pipe, and the air inlet pipe is communicated with the air inlet hole. The structure is convenient for the air inlet to be communicated with the outside. The specific shape of the air inlet pipe can be set to be circular, square, oval and other shape styles according to actual conditions.

Preferably, the intake pipe and the cylinder head body are of an integral structure. The structure can increase the structural strength and enhance the sealing effect.

Preferably, the exhaust device further comprises a silencer upper cover, wherein a silencer exhaust pipeline is arranged on the silencer upper cover and is fixed and communicated with the air inlet pipe.

Preferably, the silencer exhaust pipeline is provided with a sealing ring groove, and the sealing ring groove is provided with a sealing ring. The structure can increase the sealing effect between the exhaust pipeline and the air inlet pipe of the silencer.

Preferably, the muffler exhaust pipe is in threaded connection with the intake pipe. The connection mode of the silencer exhaust pipeline and the air inlet pipe can be set as follows: various forms such as threaded connection, buckle connection, sealing washer function connection, hard connection, it can specifically select the collocation according to actual use.

Preferably, the silencer exhaust pipe is clamped with the air inlet pipe. The connection mode of the silencer exhaust pipeline and the air inlet pipe can be set as follows: various forms such as threaded connection, buckle connection, sealing washer function connection, hard connection, it can specifically select the collocation according to actual use.

Preferably, both ends of the partition plate are fixed with the same side wall of the cylinder head body, and the partition plate is of an arch structure. The structure can increase the structural strength of the air inlet cavity and the partition plate.

Preferably, the cylinder head body and the partition plate are of an integral structure. The structure may increase structural strength.

Preferably, the suction chamber is larger in size than the inlet hole. The buffering effect can be further increased.

The utility model has the advantages that: (1) the integrated cylinder cover design is adopted, so that a good sealing effect can be achieved, and the problem of leakage on the high-pressure side is solved; (2) the problem that the original silencer is instable to install and affects the efficiency of the compressor is solved through the design of a brand new connection mode of the cylinder cover and the silencer; (3) through the arrangement of the air suction cavity in the cylinder cover, the refrigerant entering the compressor valve group is buffered, and the noise of the compressor is improved easily.

Drawings

Fig. 1 is a first exploded view of the present invention;

fig. 2 is a second exploded view of the present invention;

fig. 3 is a schematic diagram of a prior art structure.

In the figure: the cylinder cover comprises a cylinder cover body 1, an annular sealing surface 1.1, a suction cavity 1.2, an exhaust cavity 1.3, a partition plate 1.4, an air inlet 1.5, an air inlet pipe 1.6, a second sealing surface 1.7, a silencer upper cover 2, a silencer exhaust pipeline 2.1, a sealing ring groove 2.2, a sealing ring 3 and a valve plate 4.

Detailed Description

The invention is further described with reference to the accompanying drawings and specific embodiments.

Example 1:

as shown in fig. 1 and 2, the compressor cylinder head structure for preventing high pressure leakage comprises a cylinder head body 1 and a silencer upper cover 2, wherein the cylinder head body 1 is provided with an annular sealing surface 1.1, a suction cavity 1.2 and an exhaust cavity 1.3, the suction cavity 1.2 and the exhaust cavity 1.3 are arranged on the inner side of the annular sealing surface 1.1, a partition plate 1.4 is arranged between the suction cavity 1.2 and the exhaust cavity 1.3, and the cylinder head body 1 and the partition plate 1.4 are of an integrated structure. Two ends of the partition plate 1.4 are fixed with the same side wall of the cylinder cover body 1, and the partition plate 1.4 is of an arch structure. One end of the partition plate 1.4 close to the cylinder is provided with a second sealing surface 1.7, the annular sealing surface 1.1 and the second sealing surface 1.7 are positioned on the same plane, the side wall of the cylinder cover body 1 is provided with an air inlet 1.5, and the air inlet 1.5 is communicated with the air suction cavity 1.2. The side wall of the cylinder cover body 1 is provided with an air inlet pipe 1.6, and the air inlet pipe 1.6 is communicated with an air inlet 1.5. The structure facilitates the communication of the air inlet 1.5 with the outside. The air inlet pipe 1.6 and the cylinder cover body 1 are of an integral structure. Be equipped with muffler exhaust duct 2.1 on the muffler upper cover 2, muffler exhaust duct 2.1 is fixed and is linked together with intake pipe 1.6. The muffler exhaust pipe 2.1 is provided with a sealing ring groove 2.2, and the sealing ring groove 2.2 is provided with a sealing ring 3. The muffler exhaust pipeline 2.1 is in threaded connection or clamped connection with the air inlet pipe 1.6. The size of the air suction cavity 1.2 is larger than that of the air inlet hole 1.5.

In the technical scheme, the air suction cavity 1.2 and the air exhaust cavity 1.3 are completely separated by the partition plate 1.4, when the cylinder cover body 1 is installed on a cylinder, the annular sealing surface 1.1 and the second sealing surface 1.7 are positioned on the same plane, and the valve plate 4 is compressed at the same time, so that a good sealing effect can be achieved. As shown in fig. 3, the suction muffler of the prior art is mounted in the groove in a snap-fit manner, and the suction muffler is pressed by the cylinder head body 1, so that the exhaust pipe of the suction muffler is pressed against the valve plate 4. Because the exhaust pipe of the suction muffler and the cylinder head body 1 are arranged in a split manner, the size tolerance must exist between the exhaust pipe and the cylinder head body 1, and if the exhaust pipe of the suction muffler is tightly pressed on the valve plate 4, the exhaust pipe of the suction muffler needs to protrude out of the sealing surface of the cylinder head body 1, so that the sealing between the exhaust cavity 1.3 and the valve plate 4 is not tight enough, the high-pressure leakage of exhaust gas is easily caused, and the problem becomes an important factor influencing the reliability and the service life of the compressor. This application is external through the blast pipe that will breathe in the muffler, sets up a sealed chamber 1.2 of breathing in at cylinder head body 1, and the chamber 1.2 of breathing in communicates through inlet port 1.5 and the blast pipe of breathing in the muffler, and the chamber 1.2 of breathing in itself sets up on cylinder head body 1, and it is inseparabler with outside and with the sealed between the exhaust chamber 1.3 through the sealed face of annular 1.1 and the sealed face of second 1.7, has solved the problem that prior art exists. In this application, the refrigerant gas that gets into compressor suction muffler enters into cylinder head suction chamber 1.2 at first by inlet channel, then enters into the cylinder by suction chamber 1.2 and carries out the work compression, and the high temperature high pressure gas after the compression is discharged into exhaust chamber 1.3, and the compressor gets into the refrigerator through interior calandria discharge after the buffering. By adopting the integrated cylinder cover design, the leakage problem of the high-pressure side is solved, and the problem that the original silencer is instable to install and the efficiency of the compressor is influenced is solved by the design of a brand-new connection mode of the cylinder cover and the silencer; secondly, through the arrangement of the air suction cavity 1.2 in the cylinder cover, the refrigerant entering the compressor valve group has a buffering effect, and the noise of the compressor is improved easily.

The utility model has the advantages that: (1) the integrated cylinder cover design is adopted, so that a good sealing effect can be achieved, and the problem of leakage on the high-pressure side is solved; (2) the problem that the original silencer is instable to install and affects the efficiency of the compressor is solved through the design of a brand new connection mode of the cylinder cover and the silencer; (3) through the arrangement of the air suction cavity 1.2 in the cylinder cover, the refrigerant entering the compressor valve group has a buffering effect, and the noise of the compressor is improved easily.

Claims (9)

1. The utility model provides a prevent compressor cylinder head structure of high-pressure leakage, characterized by includes the cylinder head body, is equipped with annular seal face, suction chamber and exhaust chamber on the cylinder head body, and suction chamber and exhaust chamber set up at the annular seal face inboard, are equipped with the division board between suction chamber and the exhaust chamber, and the one end that the division board is close to the cylinder is equipped with the sealed face of second, and annular seal face and the sealed face of second are in same plane, are equipped with the inlet port on the lateral wall of cylinder head body.

2. The cylinder head structure of a compressor for preventing high pressure leakage according to claim 1, wherein an intake pipe is provided on a side wall of the cylinder head body, the intake pipe communicating with the intake hole.

3. The cylinder head structure of a compressor for preventing high pressure leakage according to claim 2, wherein the intake pipe is integrally formed with the cylinder head body.

4. The cylinder head structure of compressor for preventing high pressure leakage as set forth in claim 2, further comprising a muffler upper cover, a muffler exhaust pipe being provided on the muffler upper cover, the muffler exhaust pipe being fixed to and communicating with the intake pipe.

5. The cylinder head structure of a compressor for preventing high pressure leakage according to claim 4, wherein the muffler exhaust pipe is provided with a sealing ring groove, and the sealing ring groove is provided with a sealing ring.

6. The cylinder head structure of a compressor for preventing high pressure leakage according to claim 4 or 5, wherein the discharge pipe of the muffler is screw-coupled to the intake pipe.

7. The cylinder head structure of compressor for preventing high pressure leakage according to claim 4 or 5, wherein the exhaust pipe of the silencer is clamped with the intake pipe.

8. The cylinder head structure of compressor for preventing high pressure leakage according to claim 1, 2, 3, 4 or 5, wherein both ends of the partition plate are fixed to the same side wall of the cylinder head body, and the partition plate has an arch structure.

9. The cylinder head structure of compressor for preventing high pressure leakage according to claim 1, 2, 3, 4 or 5, wherein the size of the suction chamber is larger than that of the inlet hole.

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