CN112539159B - Compressor cylinder cover, cylinder head assembly, compressor and refrigerator - Google Patents
Compressor cylinder cover, cylinder head assembly, compressor and refrigerator Download PDFInfo
- Publication number
- CN112539159B CN112539159B CN202011205127.9A CN202011205127A CN112539159B CN 112539159 B CN112539159 B CN 112539159B CN 202011205127 A CN202011205127 A CN 202011205127A CN 112539159 B CN112539159 B CN 112539159B
- Authority
- CN
- China
- Prior art keywords
- compressor
- valve plate
- limiting block
- limiting
- section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/125—Cylinder heads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
- F04B39/0055—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/1073—Adaptations or arrangements of distribution members the members being reed valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
A compressor cylinder cover, a cylinder head assembly, a compressor and a refrigerator relate to the technical field of compressors; the air cylinder cover of the compressor is provided with a limiting block, and the limiting block and the air cylinder cover are of an integrated structure; the limiting section of the limiting block is an inclined plane, and the limiting section passes through the section central point of the limiting block. According to the compressor cylinder cover, the limiting block with the cambered surface section is improved into the limiting block with the inclined section, so that the lift angle of the limiting block is more attached to the exhaust valve plate, the attachment degree of the limiting section of the limiting block can be effectively improved during slapping, the response frequency of the exhaust valve plate can be improved, gas backflow can be effectively avoided, and the efficiency of the whole compressor is improved.
Description
Technical Field
The invention relates to the technical field of compressors, in particular to a compressor cylinder cover and a compressor.
Background
Along with the improvement of living standard of people, the requirement on the noise of the compressor is higher and higher, and how to reduce the noise of the compressor in the working process is of great importance to the compressor. The noise of the piston compressor for the refrigerator mainly comprises motor noise and suction and exhaust noise, the suction and exhaust noise is a main noise source of the piston compressor, and the magnitude of the exhaust noise mainly depends on the response frequency of the exhaust valve plate, namely the opening and closing speed of the exhaust valve plate, so that the height of the limiter needs to be controlled, normal exhaust is not influenced, and the noise generated by impact of the exhaust valve plate is reduced. The utility model discloses a utility model patent that the publication number is CN203499956U discloses "a low noise cylinder head for refrigerator compressor", specifically, through set up the gas storage tank on the cylinder head, realizes reducing the area of contact of valve block and stopper, changes the frequency of slapping of valve block to reduce compressor noise. Although the purpose of noise reduction can be achieved, the processing difficulty is high, the lift range of the cylinder cover is not limited, the response frequency of the exhaust valve plate is not changed, and the remarkable noise reduction effect is difficult to achieve. In addition, referring to fig. 1, a limiting block 1 and a volume cavity 2 are arranged on a traditional integrated cylinder cover, wherein the limiting block 1 is arc-shaped, and a lift angle of the exhaust valve plate is an inclined plane, so that the limiting block 1 and the exhaust valve plate cannot be completely attached, the response frequency of the exhaust valve plate is reduced, gas backflow is caused in the air suction and exhaust process, the overall efficiency is reduced, and the performance is reduced.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the cylinder cover of the compressor, which can effectively improve the response frequency of the exhaust valve plate and reduce the noise when the valve plate slaps.
A second object of the present invention is to provide a compressor cylinder head assembly.
A third object of the present invention is to provide a compressor.
A fourth object of the present invention is to provide a refrigerator.
The purpose of the invention is realized by the following technical scheme:
a compressor cylinder cover is provided with a limiting block, and the limiting block is arranged corresponding to an exhaust valve plate of a compressor; the limiting structure is characterized in that the limiting section of the limiting block is an inclined plane, and the limiting section passes through the section central point of the limiting block.
According to a preferable scheme of the invention, the limiting block and the cylinder cover are of an integrated structure.
According to a preferable scheme of the invention, the limiting section of the limiting block is an inclined plane, the inclined plane penetrates through the section center point of the limiting block, and the inclined plane extends from left to right.
In a preferred embodiment of the present invention, the height of the center point of the cross section is 0.6mm to 0.8mm.
In a preferable scheme of the invention, the angle of the limiting section is 12-16 degrees.
In a preferred embodiment of the present invention, the height of the highest position-limiting point of the limiting cross section is 1.1mm to 1.3mm.
In a preferred scheme of the invention, the limiting block is provided with an air storage groove.
A compressor cylinder head assembly comprises an exhaust valve plate gasket, an exhaust valve plate, a valve plate, an air suction valve plate and an air suction valve plate gasket; the compressor is characterized by further comprising the compressor cylinder cover.
A compressor is characterized by comprising the compressor cylinder head assembly.
A refrigerator is characterized by comprising the compressor.
The invention has the beneficial effects that:
1. according to the compressor cylinder cover, the limiting block with the cambered surface section is improved into the limiting block with the inclined section, so that the lift angle of the limiting block is more attached to the exhaust valve plate, the attachment degree of the limiting section of the limiting block can be effectively improved during slapping, the response frequency of the exhaust valve plate can be improved, gas backflow can be effectively avoided, and the efficiency of the whole compressor is improved.
2. In the compressor cylinder cover, the limiting block with the limiting section being the inclined plane is easy to process, low in cost, simple in process compared with a limiting block with an arc surface, high in practicability and good in noise reduction effect.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived on the basis of the following drawings without inventive effort.
Fig. 1 is a sectional view of a cylinder head of a conventional compressor.
Fig. 2-3 are schematic structural views of one embodiment of the cylinder head of the compressor of the present invention, wherein fig. 2 is a sectional view, and fig. 3 is a perspective view.
Fig. 4 is an exploded view of the compressor cylinder head assembly.
Fig. 5 is a graph of design parameters of a stopper calculated by simulation.
Detailed Description
The invention is further described with reference to the following examples.
Example 1
Referring to fig. 2-4, in the cylinder head of the compressor according to the embodiment, a limit block 3 is arranged on the cylinder head, the limit block 3 and the cylinder head are of an integrated structure, and the limit block 3 is arranged corresponding to an exhaust valve plate 7 of the compressor; the limiting section of the limiting block 3 is an inclined plane, and the limiting section passes through a section central point b of the limiting block 3; and the cylinder cover is provided with a volume cavity 4 for exhausting. In this embodiment, the center point of the cross section of the limiting block 3 is located on the central axis of the limiting block 3.
In this embodiment, the limiting section of the limiting block 3 passes through the section central point b of the limiting block, and the limiting section is inclined from left to right and extends. Specifically, the whole limiting section of the limiting block 3 is inclined, so that the inclined area of the limiting section can be further increased, the exhaust valve plate 7 can be attached to the limiting section more easily, certain position deviation of the exhaust valve plate 7 can be allowed, the exhaust valve plate 7 can still be attached to the limiting section completely within a certain deviation range, the lift range of the exhaust valve plate 7 can be accurately limited, and noise is reduced.
Referring to fig. 2 to 3, the height L3 of the sectional center point b is 0.6mm to 0.8mm. The distance L1 from the central point a of the limiting block 1 of the traditional cylinder cover to the plane is 0.6mm-0.8mm, and the height L3 of the central point b of the cross section of the cylinder cover is set to be the same as that of the limiting block 1 of the traditional cylinder cover, so that the lift of the exhaust valve plate can be effectively limited, and the opening and closing response frequency of the exhaust valve plate is kept in the optimal range. If the distance of the height L3 of the central point b of the cross section is less than 0.6mm, the opening time of the exhaust valve plate is short, and high-pressure gas in the exhaust process of the piston cannot be completely discharged, so that the compression capacity of the compressor is reduced, and the efficiency is reduced; if the distance of the height L3 of the central point b of the cross section is more than 0.8mm, the lift range of the exhaust valve plate is high, the response frequency is reduced in the opening and closing process, gas backflow is easily caused, and the service life of the exhaust valve plate is shortened.
Referring to fig. 2, the angle a of the limiting section is 12-16 °. The limiting section in the angle range is more favorable for opening and closing the exhaust valve plate through calculation of simulation software, and the noise of the cylinder head assembly part is better generated, so that the slapping sound can be effectively reduced, and the noise is prevented from exceeding the standard.
Referring to fig. 2-3, the height L4 of the highest position of the position-limiting section is 1.1mm-1.3mm. In a traditional limiting block 1 with a circular arc limiting surface, the height of the highest limiting point L2 is generally set to be 1.7mm-1.9mm; the height L4 of the highest limiting point of the limiting section is reduced by the optimal scheme, so that the lift of the exhaust valve plate is reduced. If the limiting point of the cylinder cover is higher, the air flow velocity of the refrigerant is higher, the pulsation is large, the turbulence intensity is high, the pressure loss is large, the impact on a valve plate is larger, and the pneumatic noise of the refrigerant is easy to generate; therefore, the height L4 of the highest limiting point of the limiting block 3 is reduced by the optimal scheme, so that the stress of the exhaust valve plate in the vertical direction is reduced, and the problems are effectively solved. Meanwhile, the lift height of the exhaust valve plate is reduced, so that the reliability of the exhaust valve plate can be improved, the service life is prolonged, the slapping abrasion of the exhaust valve plate is reduced, and the slapping noise of the valve plate is reduced, so that the reliability of the whole machine is improved and the noise is reduced. According to simulation software, the response frequency of the valve plate is favorably improved within the range of the highest limit point of 1.1mm-1.3mm, so that the airflow of refrigerant gas is more stable, the pressure loss is reduced, the vibration of the exhaust valve plate is reduced, and the aerodynamic noise of the compressor refrigerant and the noise of valve plate impact are effectively reduced; specifically, the following is a table of noise values of various parts of the cylinder head assembly at different test frequencies using the two solutions of the conventional cylinder head and the cylinder head of the present embodiment:
in addition, see the above table, where the noise values of the upper cover Z, the head X, the head Z, and the head X at the test frequency of 27HZ of the conventional cylinder head all exceed the national standard values at the test frequency of 22HZ. By adopting the cylinder cover of the embodiment, the noise values detected by all parts of the cylinder head assembly of the compressor accord with the national standard, and compared with the traditional cylinder cover, the noise reduction effect is basically reduced, and the noise reduction effect is obvious.
In addition, an air storage groove can be arranged on the limiting block 3 of the embodiment. Through the setting of gas storage tank, the noise when the discharge valve piece slaps can further be reduced.
Through simulation calculation, the influence of the cylinder cover of the compressor of the embodiment and the cylinder cover of the traditional compressor on the performance of the compressor is analyzed in a comparison mode, and the influence is specifically as follows:
the following table is the compressor performance values when using a conventional compressor cylinder head:
the following table is the compressor performance values when the compressor cylinder head of the present embodiment is used:
through many times of experimental verification and above-mentioned table reachs, the compressor cylinder head of this embodiment compares than traditional compressor cylinder head, and it is more to compressor performance promotion, and COP promotes 0.08@33HZ, and the low frequency promotes 0.06@22Hz. Meanwhile, the comparison result of the tables shows that the stress of the exhaust valve plate can be reduced in the vertical direction by the cylinder cover of the compressor in the embodiment, and the exhaust valve plate can be opened and closed in time, so that the leakage and backflow of gas are avoided, and the performance is improved.
Referring to fig. 5, in this embodiment, for parameter value design of the limit block 3 of the compressor cylinder head, the parameter value is specifically calculated by simulation software according to the node position, the distance, the modal displacement, and the modal relative displacement of the limit block 3. Specifically, a rectangular coordinate system is established, wherein the abscissa is the abscissa of the limiting block 3, namely the length of the control inclined plane, the ordinate is the height of the limiting block 3, namely the lift of the exhaust valve plate is controlled, a boundary condition is set during calculation, and the limiting section (inclined plane) of the limiting block 3 of the compressor cylinder head of the embodiment can be obtained by limiting the abscissa and the ordinate and matching the cylinder head.
Example 2
Referring to fig. 4, the present embodiment discloses a cylinder head assembly of a compressor, which includes a discharge valve sheet gasket 6, a discharge valve sheet 7, a valve plate 8, a suction valve sheet 9, and a suction valve sheet gasket 10; also included is the compressor cylinder head 5. A seal is formed between the air suction valve plate gasket 10 and a cylinder hole of the cylinder seat, so that air is prevented from leaking; the exhaust valve plate 7, the valve plate 8 and the suction valve plate 9 form an air suction and exhaust process of the compressor, the suction valve plate 9 sucks air in a specific time, refrigerant gas is discharged through the exhaust valve plate 9 after air suction and compression are completed, sealing is formed between the exhaust valve plate gasket 6 and the cylinder cover 5, high-pressure gas is prevented from leaking, and the compressor completes the air suction and exhaust process through the parts.
Example 3
The embodiment discloses a compressor, which comprises a compressor cylinder head assembly.
Example 4
The embodiment discloses a refrigerator comprising the compressor.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (7)
1. A compressor cylinder cover is provided with a limiting block, and the limiting block is arranged corresponding to an exhaust valve plate of a compressor; the limiting structure is characterized in that the limiting section of the limiting block is an inclined plane, and the limiting section passes through the section center point of the limiting block; the height of the central point of the section is 0.6mm-0.8mm; the angle of the limiting section is 12-16 degrees; the height of the highest limiting point of the limiting section is 1.1mm-1.3mm.
2. The compressor cylinder head of claim 1, wherein the stop block is of unitary construction with the cylinder head.
3. The compressor cylinder head of claim 1, wherein the limiting section of the limiting block is an inclined plane, the inclined plane passes through the section center point of the limiting block, and the inclined plane extends from left to right.
4. The compressor cylinder head of claim 1, wherein the stopper has an air receiver.
5. A compressor cylinder head assembly comprises an exhaust valve plate gasket, an exhaust valve plate, a valve plate, an air suction valve plate and an air suction valve plate gasket; characterized by further comprising the compressor cylinder head of any one of claims 1 to 4; when the exhaust valve plate is opened, the exhaust valve plate is completely attached to the limiting section of the limiting block on the cylinder cover of the compressor in an inclined posture.
6. A compressor comprising the compressor cylinder head assembly of claim 5.
7. A refrigerator characterized by comprising the compressor of claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011205127.9A CN112539159B (en) | 2020-11-02 | 2020-11-02 | Compressor cylinder cover, cylinder head assembly, compressor and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011205127.9A CN112539159B (en) | 2020-11-02 | 2020-11-02 | Compressor cylinder cover, cylinder head assembly, compressor and refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112539159A CN112539159A (en) | 2021-03-23 |
| CN112539159B true CN112539159B (en) | 2022-12-23 |
Family
ID=75013708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011205127.9A Active CN112539159B (en) | 2020-11-02 | 2020-11-02 | Compressor cylinder cover, cylinder head assembly, compressor and refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112539159B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013009627A1 (en) * | 2013-06-10 | 2014-12-11 | Thielenhaus Technologies Gmbh | check valve |
| CN203499956U (en) * | 2013-10-16 | 2014-03-26 | 华意压缩机(荆州)有限公司 | Low-noise cylinder cover used for refrigerator compressor |
| CN206221212U (en) * | 2016-11-29 | 2017-06-06 | 安徽美芝制冷设备有限公司 | Valve group part for compressor and the compressor with it |
| CN206816471U (en) * | 2016-12-19 | 2017-12-29 | 加西贝拉压缩机有限公司 | A kind of refrigeration compressor air cylinder head structure |
| CN109296522A (en) * | 2018-12-11 | 2019-02-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and refrigerating plant with it |
-
2020
- 2020-11-02 CN CN202011205127.9A patent/CN112539159B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112539159A (en) | 2021-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4642037A (en) | Reed valve for refrigeration compressor | |
| CN110645165B (en) | Cylinder head assembly, compressor and refrigerating device | |
| CN110360111A (en) | Cylinder, pump assembly, compressor and air conditioner | |
| CN112539159B (en) | Compressor cylinder cover, cylinder head assembly, compressor and refrigerator | |
| US20060096647A1 (en) | Suction valve for a small hermetic compressor | |
| KR100874069B1 (en) | Hermetic compressor | |
| KR102139369B1 (en) | Apparatus for valve of compressor and valve stopper thereof | |
| CN2878723Y (en) | Arch-type flow passage valve plate for full-enclosed refrigeration compressor | |
| CN110805543B (en) | Cylinder head assembly, compressor and refrigeration equipment | |
| JPH0444868Y2 (en) | ||
| CN203756543U (en) | Compressor exhausting structure and compressor with exhausting structure | |
| CN103267017B (en) | There is the screw compressor of novel exhaust mouth structure and exhaust valve component | |
| CN111536043A (en) | Air-supplying and enthalpy-increasing structure and compressor with same | |
| KR20010084549A (en) | A valve device for compressor form air-tight type retern pose | |
| CN212536719U (en) | Valve plate air hole structure of oil-free swing piston type compressor | |
| EP3260748B1 (en) | Valve assembly | |
| CN209100227U (en) | A kind of novel compressor cylinder lid | |
| CN216044402U (en) | Cylinder, compressor and air conditioner | |
| CN109779909A (en) | Rotary compressor novel exhaust component | |
| CN117432846B (en) | Exhaust valve plate structure and compressor | |
| CN219176965U (en) | Valve assembly and piston compressor with same | |
| CN216842228U (en) | Air suction structure and compressor | |
| TWI730388B (en) | Valve device, pump head and pump apparatus | |
| CN216554294U (en) | A silence valve plate for compressor | |
| CN219672806U (en) | Cylinder cover and exhaust system for totally-enclosed refrigeration compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |