CN109779882B - Exhaust assembly for linear compressor and linear compressor - Google Patents
Exhaust assembly for linear compressor and linear compressor Download PDFInfo
- Publication number
- CN109779882B CN109779882B CN201910173735.7A CN201910173735A CN109779882B CN 109779882 B CN109779882 B CN 109779882B CN 201910173735 A CN201910173735 A CN 201910173735A CN 109779882 B CN109779882 B CN 109779882B
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- flexible spring
- boss
- linear compressor
- valve plate
- cylinder
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- 239000002131 composite material Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005452 bending Methods 0.000 abstract 1
- 239000003507 refrigerant Substances 0.000 description 3
- 229910000639 Spring steel Inorganic materials 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The invention provides an exhaust assembly for a linear compressor and the linear compressor, and belongs to the technical field of linear compressors. This exhaust subassembly for linear compressor, the intermediate position of discharge valve piece terminal surface sets gradually radial size and diminishes first boss and second boss in proper order, and flexible spring is sheet structure, and the pilot hole is seted up to flexible spring's intermediate position, and the second boss is assembled in flexible spring's pilot hole, and flexible spring's border is assembled in the inboard of cylinder head terminal surface, and cylinder head assembly connection cylinder seat makes flexible spring's border take place bending deformation towards the cylinder seat, and flexible spring roof pressure discharge valve piece makes the outer terminal surface of discharge valve piece laminate the cylinder hole position of cylinder seat terminal surface. The invention has the beneficial effects that: when the exhaust valve plate is in a closed state, the coaxiality of the exhaust valve plate and the cylinder hole at the end face of the cylinder seat can be always ensured, the sealing performance between the exhaust valve plate and the cylinder hole at the end face of the cylinder seat is obviously improved, and the cost investment of the assembly is lower and the reliability is higher.
Description
Technical Field
The invention relates to the technical field of linear compressors, in particular to an exhaust assembly for a linear compressor and the linear compressor.
Background
The linear compressor sucks refrigerant gas into a cylinder, and makes a piston reciprocate in the cylinder by using the driving force of a linear motor to compress the refrigerant gas, and then discharges the refrigerant in a compressed state to a condenser, and finally achieves a refrigerating effect in an evaporator. At present, the exhaust structure of the linear compressor has two modes: one is to flexibly fix the nonmetallic exhaust valve plate in the cylinder cover by a conical spring, and the other is to fix the stainless steel exhaust valve plate on the metallic valve plate. The exhaust valve plate is flexibly fixed in the cylinder head assembly through the conical spring, and the coaxiality of the conical spring is not easy to control, so that the exhaust valve plate cannot be well sealed with the cylinder seat in a closed state, and sealing failure is easy to occur. The stainless steel exhaust valve plate is fixed on the metal valve plate, the exhaust valve plate is rigidly fixed, the piston is not allowed to strike the valve plate, a displacement sensor is required to strictly control the stroke of the piston, the cost is increased, and the reliability of the whole machine is reduced.
Disclosure of Invention
The invention aims to provide an exhaust assembly for a linear compressor and the linear compressor, and solves the technical problems that an exhaust valve plate in an existing linear compressor exhaust structure is prone to sealing failure or high in cost and low in reliability.
The invention provides an exhaust assembly for a linear compressor, which comprises an exhaust valve block, a flexible spring, a cylinder cover and a cylinder seat, wherein the outer end face of the exhaust valve block is of a plane structure, a first boss is arranged at the middle position of the inner end face of the exhaust valve block, the radial dimension of the first boss is smaller than that of the exhaust valve block, a second boss is arranged at the middle position of the end face of the first boss, the radial dimension of the second boss is smaller than that of the first boss, the flexible spring is of a sheet-shaped structure, an assembly hole is formed in the middle position of the flexible spring, the second boss is assembled in the assembly hole of the flexible spring, the edge of the flexible spring is assembled on the inner side of the end face of the cylinder cover, the cylinder seat is assembled and connected with the cylinder seat to enable the edge of the flexible spring to bend towards the cylinder seat, and the flexible spring pushes the exhaust valve block to enable the outer end face of the exhaust valve block to be attached to the cylinder hole position of the end face of the cylinder seat.
Further, an annular gasket is arranged on the inner side of the end face of the cylinder cover, and the edge of the flexible spring is assembled on the inner side of the annular gasket.
Further, the annular gasket is made of plastic.
Further, the edge of the end face of the cylinder head is assembled and connected with the edge of the end face of the cylinder seat.
Further, the edge of the end face of the cylinder head is assembled and connected with the edge of the end face of the cylinder seat through a plurality of bolts.
Further, the exhaust valve plate, the first boss and the second boss are integrally formed.
Further, the second boss is in interference fit with the assembly hole of the flexible spring.
Further, the exhaust valve plate is made of a nonmetallic composite material.
Further, the flexible spring is a linear flexible spring or a vortex flexible spring.
The invention also provides a linear compressor, which comprises the exhaust assembly for the linear compressor.
Compared with the prior art, the exhaust assembly for the linear compressor and the linear compressor have the following characteristics and advantages:
the exhaust component for the linear compressor is applied to the linear compressor, and can always ensure the coaxiality of the exhaust valve plate and the cylinder hole at the end surface of the cylinder seat when the exhaust valve plate is in a closed state, so that the sealing performance between the exhaust valve plate and the cylinder hole at the end surface of the cylinder seat is obviously improved, and the cost investment of the component is lower and the reliability is higher; in addition, the exhaust valve plate can not be contacted with the conical spring steel wire when being opened and closed, thereby being beneficial to optimizing the noise performance of the compressor.
The features and advantages of the present invention will become more apparent upon reading the detailed description of the invention in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view showing a structure of a portion of an exhaust assembly for a linear compressor according to an embodiment of the present invention;
FIG. 2 is a schematic view of a structure of a flexible spring, a discharge valve plate and a cylinder block of a discharge assembly for a linear compressor according to an embodiment of the present invention after being fastened;
FIG. 3 is a partial enlarged view at D in FIG. 2;
FIG. 4 is a perspective view of a discharge valve plate in a discharge assembly for a linear compressor according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of a discharge valve plate in a discharge assembly for a linear compressor according to an embodiment of the present invention;
wherein,
1. cylinder block, 2, cylinder head, 3, annular gasket, 4, flexible spring, 4a, flexible spring after the deformation, 5, discharge valve piece, 51, first boss, 52, second boss, 6, piston, 7, spring deformation space, 8, initial clearance, A, initial clearance size, B, air current passageway, C, spring deformation space size.
Detailed Description
As shown in fig. 1 to 5, the present embodiment provides a discharge assembly for a linear compressor, which can be applied to a linear compressor. The exhaust assembly for the linear compressor of the embodiment is applied to the linear compressor, and when the exhaust valve plate 5 is in a closed state, the coaxiality of the exhaust valve plate 5 and the end surface cylinder hole of the cylinder seat 1 can be always ensured, and the sealing performance between the exhaust valve plate 5 and the end surface cylinder hole of the cylinder seat 1 is obviously improved. The exhaust assembly for the linear compressor of the embodiment has low cost investment and high reliability. In addition, the exhaust valve plate 5 is not contacted with conical spring steel wires during opening and closing, so that the noise performance of the compressor is optimized.
The exhaust assembly for a linear compressor of the present embodiment includes an exhaust valve plate 5, a flexible spring 4, a cylinder head 2, and a cylinder block 1.
The exhaust valve plate 5 is disc-shaped, and the outer end surface (right end surface in fig. 1) of the exhaust valve plate 5 is of a plane structure, and the outer end surface of the exhaust valve plate 5 is used as a sealing surface, so that the exhaust valve plate 5 is tightly attached to the cylinder hole on the end surface of the cylinder seat 1 when the exhaust valve plate 5 is in a closed state. The middle position of the inner end surface of the exhaust valve plate 5 is provided with a cylindrical first boss 51, the radial dimension of the first boss 51 is smaller than the radial dimension of the exhaust valve plate 5, the middle position of the end surface of the first boss 51 is provided with a cylindrical second boss 52, and the radial dimension of the second boss 52 is smaller than the radial dimension of the first boss 51. The exhaust valve plate 5, the first boss 51 and the second boss 52 are all made of a nonmetallic composite material. The exhaust valve plate 5, the first boss 51 and the second boss 52 are integrally formed, so that the production process is simplified, and the integrated structure formed by the three is firmer.
The flexible spring 4 of the present embodiment is a linear-type flexible spring or a scroll-type flexible spring, and the external dimension and thickness of the flexible spring 4 are determined according to the design parameters of the linear compressor. The flexible spring 4 is of a disc-shaped sheet structure, an assembly hole is formed in the middle position of the flexible spring 4, and the second boss 52 is assembled in the assembly hole of the flexible spring 4. Wherein, the second boss 52 is in interference fit with the assembly hole of the flexible spring 4, so that assembly parts are simplified, and the assembly of the second boss and the assembly hole is firm.
After the second boss 52 is assembled in the assembly hole of the flexible spring 4, a spring deformation space 7 is formed among the flexible spring 4, the first boss 51 and the exhaust valve plate 5, and the width of the spring deformation space 7 is the spring deformation space dimension C. The edge of the flexible spring 4 can be deformed toward the cylinder block 1 within the range of the spring deformation space 7 to become a deformed flexible spring 4a.
The edge of the flexible spring 4 is fitted inside the end face of the cylinder head 2. In this embodiment, an annular gasket 3 is provided on the inner side of the end face of the cylinder head 2, the annular gasket 3 is made of plastic, and the edge of the flexible spring 4 is fitted on the inner side of the annular gasket 3. The annular gasket 3 prevents wear between the flexible spring 4 and the cylinder head 2 and also prevents noise.
The cylinder head 2 is assembled to the cylinder block 1 such that the edges of the flexible springs 4 are bent and deformed toward the cylinder block 1. In this embodiment, the edge of the end face of the cylinder head 2 is assembled and connected with the edge of the end face of the cylinder block 1 through a plurality of bolts, and after the cylinder head 2 is assembled and connected with the cylinder block 1, the edge of the flexible spring 4 can be easily bent and deformed towards the cylinder block 1.
When the cylinder cover 2 is lapped on the cylinder seat 1 and is not fastened and assembled, an initial gap 8 is reserved between the cylinder cover 2 and the cylinder seat, the width of the initial gap 8 is the initial gap size A, and the flexible spring 4 is not deformed. After the two are fastened and assembled, an initial gap 8 is eliminated between the two, and the cylinder cover 2 drives the edge of the flexible spring 4 to bend and deform towards the cylinder seat 1 through the annular gasket 3.
After the edge of the flexible spring 4 is bent and deformed towards the cylinder seat 1, the flexible spring 4 is in the original shape, and the flexible spring 4 pushes the exhaust valve plate 5 to enable the outer end face of the exhaust valve plate 5 to be attached to the cylinder hole position of the end face of the cylinder seat 1.
In the embodiment, when the exhaust valve plate 5 is in the closed state, the exhaust valve plate 5 is pressed under the top of the flexible spring 4, the outer end surface of the exhaust valve plate 5 is attached to the cylinder hole of the end surface of the cylinder seat 1, the flexible spring 4 can always ensure the coaxiality of the exhaust valve plate 5 and the cylinder hole of the end surface of the cylinder seat 1, and the sealing performance between the exhaust valve plate 5 and the cylinder hole of the end surface of the cylinder seat 1 is obviously improved. When the piston 6 moves compressed gas leftwards, and the exhaust valve plate 5 is in an open state, the exhaust valve plate 5 is opened to push the flexible spring 4 leftwards to restore the original shape, the air flow in the linear compressor cavity is discharged from the exhaust valve plate 5, and the moving path of the air flow refers to an air flow channel B in the figure.
It should be understood that the above description is not intended to limit the invention to the particular embodiments disclosed, but to limit the invention to the particular embodiments disclosed, and that the invention is not limited to the particular embodiments disclosed, but is intended to cover modifications, adaptations, additions and alternatives falling within the spirit and scope of the invention.
Claims (8)
1. An exhaust assembly for a linear compressor, characterized by: the exhaust assembly for the linear compressor comprises an exhaust valve plate, a flexible spring, a cylinder cover and a cylinder seat, wherein the outer end face of the exhaust valve plate is of a planar structure, a first boss is arranged in the middle of the inner end face of the exhaust valve plate, the radial dimension of the first boss is smaller than that of the exhaust valve plate, a second boss is arranged in the middle of the end face of the first boss, the radial dimension of the second boss is smaller than that of the first boss, the flexible spring is of a sheet-shaped structure, an assembly hole is formed in the middle of the flexible spring, the second boss is assembled in the assembly hole of the flexible spring, the edge of the flexible spring is assembled on the inner side of the end face of the cylinder cover, the cylinder cover is assembled and connected with the cylinder seat to enable the edge of the flexible spring to bend and deform towards the cylinder seat, and the flexible spring pushes the exhaust valve plate to enable the outer end face of the exhaust valve plate to be attached to the cylinder hole of the end face of the cylinder seat;
the exhaust valve plate, the first boss and the second boss are integrally formed;
the second boss is in interference fit with the assembly hole of the flexible spring;
after the second boss is assembled in the assembly hole of the flexible spring, a spring deformation space is formed among the flexible spring, the first boss and the exhaust valve plate.
2. The exhaust assembly for a linear compressor according to claim 1, wherein: the inner side of the end face of the cylinder cover is provided with an annular gasket, and the edge of the flexible spring is assembled on the inner side of the annular gasket.
3. The exhaust assembly for a linear compressor according to claim 2, wherein: the annular gasket is made of plastic.
4. The exhaust assembly for a linear compressor according to claim 1, wherein: the edge of the end face of the cylinder cover is assembled and connected with the edge of the end face of the cylinder seat.
5. The exhaust assembly for a linear compressor according to claim 4, wherein: the edge of the end face of the cylinder cover is assembled and connected with the edge of the end face of the cylinder seat through a plurality of bolts.
6. The exhaust assembly for a linear compressor according to claim 1, wherein: the exhaust valve plate is made of a nonmetallic composite material.
7. The exhaust assembly for a linear compressor according to claim 1, wherein: the flexible spring is a linear flexible spring or a vortex flexible spring.
8. A linear compressor, characterized by: the linear compressor includes the exhaust assembly for a linear compressor according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910173735.7A CN109779882B (en) | 2019-03-08 | 2019-03-08 | Exhaust assembly for linear compressor and linear compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910173735.7A CN109779882B (en) | 2019-03-08 | 2019-03-08 | Exhaust assembly for linear compressor and linear compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109779882A CN109779882A (en) | 2019-05-21 |
| CN109779882B true CN109779882B (en) | 2024-02-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910173735.7A Active CN109779882B (en) | 2019-03-08 | 2019-03-08 | Exhaust assembly for linear compressor and linear compressor |
Country Status (1)
| Country | Link |
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| CN (1) | CN109779882B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11182424A (en) * | 1997-12-15 | 1999-07-06 | Daikin Ind Ltd | Linear compressor |
| CN105298805A (en) * | 2014-07-21 | 2016-02-03 | Lg电子株式会社 | Linear compressor |
| CN107339223A (en) * | 2016-05-03 | 2017-11-10 | Lg电子株式会社 | Linearkompressor |
| CN209724606U (en) * | 2019-03-08 | 2019-12-03 | 青岛万宝压缩机有限公司 | Linear compressor gas deflation assembly and linear compressor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102259654B1 (en) * | 2016-05-03 | 2021-06-02 | 엘지전자 주식회사 | Linear compressor |
-
2019
- 2019-03-08 CN CN201910173735.7A patent/CN109779882B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11182424A (en) * | 1997-12-15 | 1999-07-06 | Daikin Ind Ltd | Linear compressor |
| CN105298805A (en) * | 2014-07-21 | 2016-02-03 | Lg电子株式会社 | Linear compressor |
| CN107339223A (en) * | 2016-05-03 | 2017-11-10 | Lg电子株式会社 | Linearkompressor |
| CN209724606U (en) * | 2019-03-08 | 2019-12-03 | 青岛万宝压缩机有限公司 | Linear compressor gas deflation assembly and linear compressor |
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| Publication number | Publication date |
|---|---|
| CN109779882A (en) | 2019-05-21 |
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