CN216767702U - Cylinder cover for refrigeration compressor - Google Patents
Cylinder cover for refrigeration compressor Download PDFInfo
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- CN216767702U CN216767702U CN202123238413.8U CN202123238413U CN216767702U CN 216767702 U CN216767702 U CN 216767702U CN 202123238413 U CN202123238413 U CN 202123238413U CN 216767702 U CN216767702 U CN 216767702U
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- cylinder cover
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Abstract
The utility model discloses a cylinder cover for a refrigeration compressor, which comprises a cylinder cover body, an air suction silencer and a connecting channel, wherein the air suction silencer and the connecting channel are arranged on one side of the cylinder cover body, the air suction silencer and the cylinder cover body are hermetically communicated through the connecting channel, and the cylinder cover body, the connecting channel and the air suction silencer are all made of plastic materials and are molded into an integrated structure through an injection molding process. The cylinder cover for the refrigeration compressor disclosed by the utility model realizes seamless connection between the cylinder cover and the suction muffler by adopting a brand new connection mode, so that the connection firmness between the cylinder cover and the muffler is ensured, the sealing property between the cylinder cover and the muffler is also ensured, and the service life of the refrigeration compressor can be further prolonged.
Description
Technical Field
The utility model relates to the technical field of refrigeration compressors, in particular to a cylinder cover for a refrigeration compressor.
Background
A refrigeration compressor is the core of a refrigerator and functions to compress and transport a circulating refrigerant in the refrigerator system, thereby transferring heat from the interior of the refrigerator to the ambient environment. When the refrigeration compressor operates, the air flow pressure pulsation is caused in the air suction process, low-frequency air suction noise is generated, and the user experience is influenced. Therefore, existing refrigeration compressors are provided with a suction muffler in order to reduce the suction noise as much as possible.
The valve set structure of the refrigeration compressor generally comprises an air suction valve plate, an air discharge valve plate, a cylinder cover, a valve plate, an air suction silencer and the like, wherein the air suction silencer is arranged on the cylinder cover. The present muffler of breathing in is the plastics material mostly, the cylinder head is the aluminum alloy stamping workpiece, the muffler of breathing in belongs to split type connection with the cylinder head and is not hard up easily, the cylinder head mainly realizes sealedly through the plastic deformation of muffler head structure C muscle or facet with the muffler of breathing in, the leakproofness of junction also can not be guaranteed, it is higher to have the muffler to lose efficacy and can not play the noise abatement and reduce the risk of the pulsation effect of breathing in, still can reduce the efficiency of breathing in of compressor simultaneously, reduce compressor refrigeration volume and performance. In addition, the lubricating oil mist mixed in the gaseous refrigerant is directly sucked into the cylinder without passing through the silencer and is finally discharged out of the compressor through the exhaust channel to enter the refrigeration system, so that the heat exchange efficiency of the refrigeration system is reduced, and the power consumption of the refrigeration system is increased.
In order to ensure the connection tightness and the sealing performance between the air suction silencer and the cylinder cover, a gasket is usually additionally arranged between the contact surfaces of an air outlet of the air suction silencer and an air inlet of the cylinder cover, so that the assembly process is increased, the assembly efficiency is reduced, the problem that the gasket is not installed or cannot be installed in place due to manual operation of the assembly of the air suction silencer and the cylinder cover is solved, and the effect of ensuring the sealing performance cannot be achieved. For this reason, chinese patent CN113153702A discloses a compressor cylinder head structure for preventing high pressure leakage, which is provided with an air inlet pipe communicated with an air inlet on the side wall of the cylinder head, the exhaust pipe of the suction muffler is communicated with the air inlet pipe on the side wall of the cylinder head to realize the fixed communication between the muffler and the cylinder head, the connection mode of the exhaust pipe of the muffler and the air inlet pipe can be set as: the multi-form such as threaded connection, buckle connection, sealing washer effect connection, hard connection, it is the installation instability problem between solving cylinder head and muffler more, and is little to promoting the two connection leakproofness effect. Chinese patent CN213627933U discloses an integral cylinder head silencer assembly, which connects the cylinder head and the silencer by adding a connecting flange and a silencer connecting plate to eliminate the gap between the cylinder head and the silencer, so as to effectively avoid the situation that the compressor can not work normally due to poor sealing performance, so that the working medium leaks, and the connecting method is more complicated, and the sealing performance between the cylinder head and the silencer is replaced by the sealing performance, thus the higher manufacturing cost is increased invisibly.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems that in the refrigeration compressor in the prior art, the connection firmness and the sealing performance of a suction muffler and a cylinder cover are not enough, so that the silencing effect is not ideal, the refrigerating capacity is reduced, the heat exchange efficiency of a refrigeration system is reduced and the like, and provides the cylinder cover with the suction muffler for the refrigeration compressor, which has the advantages of effectively reducing the manufacturing cost, along with compact structure and good sealing performance between the suction muffler and the cylinder cover.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the cylinder cover for the refrigeration compressor comprises a cylinder cover body, an air suction silencer and a connecting channel, wherein the air suction silencer and the connecting channel are arranged on one side of the cylinder cover body, the air suction silencer and the cylinder cover body are hermetically communicated through the connecting channel, the cylinder cover body, the connecting channel and the air suction silencer are made of plastic materials, and the cylinder cover body, the connecting channel and the air suction silencer are molded into an integrated structure through an injection molding process.
Wherein, the both ends of connecting channel are connected the air inlet of cylinder head and the gas outlet of inhaling the muffler respectively.
Among the above-mentioned technical scheme, cylinder head, connecting channel and the muffler of breathing in are an integral structure, and connecting channel is the gas outlet of the muffler of breathing in again the air inlet of cylinder head, has effectively avoidd among the prior art cylinder head and the muffler of breathing in the firmness of being connected inadequately and the leakproofness problem inadequately.
Furthermore, the cylinder cover body is provided with an annular sealing surface, an air suction cavity and an exhaust cavity, the air suction cavity and the exhaust cavity are arranged on the inner side of the annular sealing surface, a partition plate is arranged between the air suction cavity and the exhaust cavity, a second sealing surface is arranged at one end, close to the cylinder, of the partition plate, and the annular sealing surface and the second sealing surface are located on the same plane.
Preferably, the annular sealing surface and the second sealing surface are each provided with a ring of flanges along their circumferential direction. Through adding and establishing the flange, realize that the cylinder head assembly is fixed in the in-process on the compressor cylinder block of refrigeration compressor, no sliding line contact has between cylinder head and the cylinder head gasket, has ensured the leakproofness between cylinder head and cylinder block, has reduced gas leakage, weeping risk in the compressor working process, can further promote compressor's work efficiency and life.
Preferably, the height of the flange is 0.1 to 0.3 mm.
Furthermore, the periphery of the outer side of the annular sealing surface of the cylinder cover body is provided with a mounting through hole respectively.
Preferably, a metal nut is embedded in the mounting through hole.
Furthermore, the cylinder cover body, the connecting channel and the suction muffler are made of reinforced modified engineering plastics.
Preferably, the resin matrix of the reinforced modified engineering plastic is selected from one or more of nylon, polyethylene terephthalate, polybutylene terephthalate and polyphenylene sulfide. The specific material of the resin matrix can be selected according to the power of the refrigeration compressor.
Preferably, the nylon material is aliphatic nylon or semi-aromatic nylon with the glass fiber content of 40-60 wt%.
Compared with the prior art, the utility model has the following beneficial effects:
(1) the cylinder cover is made by plastic injection molding, compared with the current aluminum alloy stamping part, the production process is simple, the production efficiency and the product processing precision are improved, the production energy consumption is reduced, the overall weight is reduced, and the production cost is greatly reduced.
(2) The cylinder head is the plastics material with the muffler of breathing in, through structural design and injection moulding process integrated into one piece, makes the cylinder head for the compressor who has the muffler of breathing in, and the brand-new connected mode between cylinder head and muffler has realized seamless connection between cylinder head and the muffler of breathing in, has both guaranteed the firm in connection degree between cylinder head and muffler, has ensured the leakproofness between cylinder head and muffler again, can further promote compressor life.
(3) The cylinder cover for the refrigeration compressor is of an integrated structure, a secondary assembly process between the cylinder cover and the suction muffler in the prior art is omitted, the risk of product scrapping caused by air leakage due to assembly errors is avoided, and the product percent of pass is obviously improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the cylinder head of the present invention.
Fig. 2 is a sectional view of a portion where a cylinder head body and a suction muffler of the present invention are connected.
Fig. 3 is a schematic view of the cavity surface structure of the cylinder head of the present invention.
FIG. 4 is a cross-sectional view of the assembled cylinder head and head gasket of the present invention.
Description of the drawings: 1-a cylinder head body; 2-a suction muffler; 3-connecting the channels; 4-an intake port of the cylinder head; 5-the air outlet of the suction muffler; 6-annular sealing surface; 7-an air suction cavity; 8-an exhaust cavity; 9-a partition plate; 10-a second sealing surface; 11-a flange;
12-mounting a through hole; 13-cylinder head gasket.
Detailed Description
The utility model is further described with reference to the following figures and specific embodiments.
As shown in fig. 1 and 2, a cylinder head for a refrigeration compressor comprises a cylinder head body 1, a suction muffler 2 and a connecting channel 3, wherein the suction muffler 2 and the connecting channel 3 are arranged on one side of the cylinder head body, the suction muffler and the cylinder head body are hermetically communicated by the connecting channel, and the cylinder head body, the connecting channel and the suction muffler are made of plastic materials and are molded into an integrated structure through an injection molding process; the two ends of the connecting channel are respectively connected with an air inlet 4 of the cylinder cover and an air outlet 5 of the suction muffler.
As shown in fig. 3, an annular sealing surface 6, a suction cavity 7 and an exhaust cavity 8 are arranged on the cylinder head body, the suction cavity and the exhaust cavity are arranged on the inner side of the annular sealing surface, a partition plate 9 is arranged between the suction cavity and the exhaust cavity, a second sealing surface 10 is arranged at one end of the partition plate close to the cylinder, and the annular sealing surface and the second sealing surface are in the same plane; the annular sealing surface and the second sealing surface are both provided with a circle of flanges 11 with the height of 0.2mm along the circumferential direction; and the periphery of the outer side of the annular sealing surface of the cylinder cover body is provided with a mounting through hole 12 respectively.
The cylinder head body and the suction muffler in this embodiment both use nylon 66 with a glass fiber content of 50 wt%.
As shown in fig. 4, when the cylinder head is assembled and fixed on the cylinder block of the refrigeration compressor, the flange on the sealing surface of the cylinder head is linearly and tightly connected with the cylinder head gasket 13.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the utility model.
Claims (8)
1. The cylinder cover for the refrigeration compressor is characterized by comprising a cylinder cover body, an air suction silencer and a connecting channel, wherein the air suction silencer and the connecting channel are arranged on one side of the cylinder cover body, the air suction silencer and the cylinder cover body are communicated in a sealing mode through the connecting channel, the cylinder cover body, the connecting channel and the air suction silencer are all made of plastic materials, and the cylinder cover body, the connecting channel and the air suction silencer are molded into an integrated structure through an injection molding process.
2. The cylinder head for a refrigerating compressor as claimed in claim 1, wherein both ends of the connection passage are connected to an air inlet of the cylinder head and an air outlet of the suction muffler, respectively.
3. The cylinder head for a refrigeration compressor according to claim 1, wherein the cylinder head body is provided with an annular sealing surface, a suction chamber and a discharge chamber, the suction chamber and the discharge chamber are disposed inside the annular sealing surface, a partition plate is disposed between the suction chamber and the discharge chamber, one end of the partition plate adjacent to the cylinder is provided with a second sealing surface, and the annular sealing surface and the second sealing surface are in the same plane.
4. The cylinder head for a refrigerant compressor as set forth in claim 3, wherein each of said annular seal surface and said second seal surface is provided with a ring of flange along a circumferential direction thereof.
5. The cylinder head for a refrigeration compressor according to claim 4, wherein the height of the flange is 0.1 to 0.3 mm.
6. The cylinder head for a refrigerant compressor as set forth in claim 3, wherein a mounting through hole is formed in each of the outer peripheries of the annular sealing surface of the cylinder head body.
7. The cylinder head for a refrigeration compressor according to claim 6, wherein a metal nut is embedded in the mounting through hole.
8. The cylinder head for a refrigerating compressor as claimed in claim 1, wherein the cylinder head body, the connecting passage and the suction muffler are made of reinforced modified engineering plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123238413.8U CN216767702U (en) | 2021-12-22 | 2021-12-22 | Cylinder cover for refrigeration compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123238413.8U CN216767702U (en) | 2021-12-22 | 2021-12-22 | Cylinder cover for refrigeration compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216767702U true CN216767702U (en) | 2022-06-17 |
Family
ID=81969769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123238413.8U Active CN216767702U (en) | 2021-12-22 | 2021-12-22 | Cylinder cover for refrigeration compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216767702U (en) |
-
2021
- 2021-12-22 CN CN202123238413.8U patent/CN216767702U/en active Active
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