Compressor valve plate
By installing a filter screen at the air inlet of the compressor valve plate and welding it with a retaining ring, the wear problem caused by metal debris circulating inside the compressor is solved, thus protecting the fluid pipeline and the compressor and improving the reliability and service life of the equipment.
Patent Information
- Application Number
- CN202520317768.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-26
AI Technical Summary
The circulation of metal debris in existing compressors within fluid lines and compressors leads to wear and leakage, affecting the lifespan of fluid lines and compressors.
A filter screen is installed at the air inlet of the compressor valve plate to collect metal debris and prevent it from circulating in the fluid pipeline and compressor. A fixing ring is welded to the filter screen and fixed by a ring structure to ensure the stability of the filter screen and the filtration effect.
It effectively prevents wear and damage to fluid pipelines, protects the compressor piston and cylinder, and improves the reliability and lifespan of the compressor.
Smart Images
Figure CN223894348U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of compressor parts technology, and more specifically, to a compressor valve plate. Background Technology
[0002] A compressor is a driven fluid machine that raises low-pressure gas to high-pressure gas. It is the heart of a refrigeration system. It draws in low-temperature, low-pressure refrigerant gas through the suction pipe, compresses it through the piston driven by the drive components, and then discharges high-temperature, high-pressure refrigerant gas through the discharge pipe, providing power for the refrigeration cycle. Furthermore, when the refrigerant gas circulates in the fluid pipelines and compressor, some metal debris will inevitably remain inside the fluid pipelines and compressor after processing. The high-speed circulation of the refrigerant gas in the fluid pipelines and compressor will cause the metal debris remaining inside the fluid pipelines and compressor to continuously impact the inner walls of the fluid pipelines and compressor. Over time, this will cause wear or damage to the fluid pipelines, leading to refrigerant gas leakage. The metal debris remaining inside the fluid pipelines will also cause wear to the piston and cylinder in the compressor. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a compressor valve plate, which, by setting a filter screen on the air intake side of the air intake hole of the compressor valve plate, can collect metal debris remaining in the fluid pipeline and prevent the metal debris from continuously circulating in the fluid pipeline and the compressor, thereby effectively avoiding wear or damage to the fluid pipeline and avoiding wear on the piston and cylinder in the compressor.
[0004] This utility model provides a compressor valve plate, including a valve plate body with an air inlet and an air outlet. The compressor valve plate also includes a fixing ring and a filter screen. An outwardly expanding annular step is provided at the edge of the air inlet side of the air inlet, and an annular slot is provided at the bottom of the outer edge of the annular step. The fixing ring includes a horizontal side and a vertical side of the ring shape connected as one piece. The cross-section of the horizontal side and the vertical side forms an "L" shape. The outer edge of the filter screen is welded and fixed to the lower end face of the horizontal side, and the lower end of the horizontal side is inserted into the annular slot and fastened to the valve plate body.
[0005] The utility model discloses a filter screen is set to the air inlet side of the air inlet hole of compressor valve plate, and the filter screen can collect the metal scrap in the fluid pipeline, and prevents the metal scrap from circulating in the fluid pipeline and the compressor, thereby effectively avoiding the abrasion or damage of the fluid pipeline and the abrasion of the piston and cylinder in the compressor.
[0006] In a possible implementation, the lower end surface of the filter screen abuts against the annular step; by adopting this structure, when the compressor is working and the air inlet hole enters the refrigerant gas, the annular step can reliably support the filter screen to avoid deformation or disengagement of the filter screen, that is, the filtering effect of the filter screen on the metal scrap in the refrigerant gas can be ensured.
[0007] In a possible implementation, the outer side wall of the vertical edge is provided with an annular protruding rib, the inner side wall of the annular slot is provided with an annular embedding groove matched with the annular protruding rib, and the annular protruding rib and the annular embedding groove are embedded to lock the fixing ring and the valve plate body; by adopting this structure, after the annular protruding rib on the vertical edge is embedded in the annular embedding groove on the inner side wall of the annular slot, the fixing ring and the valve plate body can be reliably fixed, and the fixing ring and the valve plate body are conveniently fixed.
[0008] In a possible implementation, the outer wall of the lower end of the vertical edge is provided with an annular chamfer surface, and the annular chamfer surface is used for guiding the vertical edge inserted into the annular slot; by adopting this structure, when the vertical edge is inserted into the annular slot, the annular chamfer surface can guide the vertical edge inserted into the annular slot, and the annular protruding rib can be embedded into the annular embedding groove to lock the fixing ring and the valve plate body.
[0009] In a possible implementation, the side wall of the air inlet hole is provided with a notch, the inner end surface of the notch forms a circular arc transition surface, and the circular arc transition surface is curved from the air inlet side of the air inlet hole to the air outlet side of the air inlet hole; by adopting this structure, during the refrigerant gas entering the air inlet hole, the circular arc transition surface can guide the refrigerant gas, so that the refrigerant gas can more smoothly enter the air inlet hole. BRIEF DESCRIPTION OF DRAWINGS
[0010] Fig. 1 is a schematic diagram of the three-dimensional structure of the utility model;
[0011] Fig. 2 is a perspective view of the utility model after removing the filter screen;
[0012] Fig. 3 is a sectional view of the utility model;
[0013] Fig. 4 is an enlarged view of structure A in Fig. 3. DETAILED DESCRIPTION
[0014] First of all, those skilled in the art should understand that these embodiments are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments as needed in order to adapt to specific application occasions.
[0015] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.
[0016] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0017] The present application will be further described in detail below in conjunction with the drawings and specific embodiments.
[0018] Referring to Figs. 1-4, the present application discloses a compressor valve plate, comprising a valve plate body 1, the valve plate body 1 is provided with an air inlet hole 11 and an air outlet hole 12; the compressor valve plate further comprises a fixed ring 2 and a filter screen 3; the edge of the air inlet hole 11 on the air inlet side is provided with an outwardly expanding annular step 13, and the bottom of the outer edge of the annular step 13 is provided with an annular slot 14; the fixed ring 2 comprises a horizontally annular edge 21 and a vertically annular edge 22 connected in one body, the cross section of the horizontally annular edge 21 and the vertically annular edge 22 forms an "L" shape, the outer edge of the filter screen 3 is welded and fixed on the lower end surface of the horizontally annular edge 21, and the lower end of the horizontally annular edge 21 is inserted into the annular slot 14 and is fixedly connected with the valve plate body 1.
[0019] The lower end surface of the filter screen 3 abuts against the annular step 13; by adopting this structure, the annular step can reliably support the filter screen during the operation of the compressor and when the inlet hole enters the refrigerant gas, so as to avoid the deformation or disengagement of the filter screen, that is, to ensure the filtering effect of the filter screen on the metal debris in the refrigerant gas.
[0020] The outer wall of the vertical edge 22 is provided with an annular protrusion 221, and the inner wall of the annular slot 14 is provided with an annular groove 141 matched with the annular protrusion 221; the annular protrusion 221 is embedded in the annular groove 141 to lock the fixing ring 2 and the valve plate body 1; by adopting this structure, after the annular protrusion on the vertical edge is embedded in the annular groove on the inner wall of the annular slot, the fixing ring and the valve plate body can be reliably fixed, and the fixing ring and the valve plate body are conveniently fixed.
[0021] The outer wall of the lower end of the vertical edge 22 is provided with an annular chamfer surface 222, which is used to guide the vertical edge 22 to be inserted into the annular slot 14 in cooperation with the inner wall of the annular slot 14; by adopting this structure, when the vertical edge cooperates with the annular slot for insertion, the annular chamfer surface can guide the vertical edge to be inserted into the annular slot in cooperation with the inner wall of the annular slot, and the annular protrusion can be embedded in the annular groove to lock the fixing ring and the valve plate body.
[0022] The side wall of the inlet hole 11 is provided with a notch 111, and the inner end surface of the notch 111 forms a circular arc transition surface 112 curved from the gas inlet side of the inlet hole 11 to the gas outlet side of the inlet hole 11; by adopting this structure, during the process of the refrigerant gas entering the inlet hole, the circular arc transition surface can guide the refrigerant gas, so that the refrigerant gas can enter the inlet hole more smoothly.
[0023] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A compressor valve plate, comprising a valve plate body (1), wherein the valve plate body (1) is provided with an air inlet (11) and an air outlet (12); characterized in that: The compressor valve plate also includes a fixing ring (2) and a filter screen (3); an outwardly expanding annular step (13) is provided at the edge of the air inlet (11) on the air inlet side, and an annular slot (14) is provided at the bottom of the outer edge of the annular step (13); the fixing ring (2) includes a ring-shaped horizontal side (21) and a ring-shaped vertical side (22) connected together, and the cross-section of the horizontal side (21) and the vertical side (22) forms an "L" shape; the outer edge of the filter screen (3) is welded and fixed to the lower end face of the horizontal side (21), and the lower end of the horizontal side (21) is inserted into the annular slot (14) and fastened and fixed to the valve plate body (1).
2. The compressor valve plate according to claim 1, characterized in that: The lower end face of the filter (3) abuts against the annular step (13).
3. The compressor valve plate according to claim 1 or 2, characterized in that: An annular rib (221) is provided on the outer wall of the vertical side (22), and an annular groove (141) is provided on the inner wall of the annular slot (14) to cooperate with the annular rib (221). The annular rib (221) and the annular groove (141) are fitted together to lock the fixing ring (2) and the valve plate body (1).
4. The compressor valve plate according to claim 3, characterized in that: An annular chamfered surface (222) is provided on the outer wall of the lower end of the vertical edge (22). The annular chamfered surface (222) is used to cooperate with the inner wall of the annular slot (14) for guidance so that the vertical edge (22) can be inserted into the annular slot (14).
5. The compressor valve plate according to claim 1, 2, or 4, characterized in that: A notch (111) is provided on the side wall of the air inlet (11), and the inner end face of the notch (111) forms an arc transition surface (112). The arc transition surface (112) bends from the air inlet side of the air inlet (11) toward the air outlet side of the air inlet (11).