A silencer cover for compressor, pump body structure and compressor
By adding a silencer tube to the compressor silence cover and connecting it with the exhaust hole, the silence effect and noise problems caused by the reduction of the volume of the silence chamber are solved, and a better sound wave rebound and gas-liquid separation effect is achieved, reducing the noise and oil discharge of the compressor.
Patent Information
- Application Number
- CN202421502130.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-06-27
AI Technical Summary
The volume of the silence chamber of the existing compressor silence cover reduces the silence effect, and the sound of airflow at the exhaust holes produces noise, affecting the surrounding environment.
A silence cover for compressors is designed. By adding a silence tube to the silence cover body and connecting it with the exhaust hole, multiple through holes are penetrated through the side wall of the silence tube to increase the effect of sound wave rebound and gas-liquid separation.
Without expanding the volume of the silence chamber, increase the sound wave rebound, reduce noise, and improve the gas-liquid separation effect to reduce the amount of oil spit in the compressor.
Smart Images
Figure CN222717075U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of compressors, in particular to a silencer cover for a compressor, a pump body structure and a compressor. Background Art
[0002] A rotary compressor generally consists of an upper cover, a lower cover, a housing, a motor fixed inside to provide rotational power, and a pump body to achieve refrigerant compression. Generally, the compressor pump body includes an upper bearing, a lower bearing, a muffler cover, a cylinder assembly, a piston, and a crankshaft. The muffler cover is generally sleeved on the crankshaft and forms a muffler cavity with the upper bearing and / or the lower bearing. The refrigerant gas compressed by the cylinder assembly is discharged from the compression cavity of the cylinder through the exhaust port on the upper bearing into the muffler cavity to achieve muffler noise reduction.
[0003] The muffler cover's muffler principle is that sound waves bounce back in the muffler chamber and cancel each other out, and then are exhausted through the holes in the muffler cover. With the miniaturization of compressors, the volume of the muffler cover's muffler chamber has become smaller and smaller, resulting in a decrease in the muffler effect. In addition, the airflow sound discharged from the muffler hole will also generate a certain amount of noise, causing the compressor to generate a certain range of noise problems in the surrounding environment during operation. Utility Model Content
[0004] Based on this, the purpose of the utility model is to overcome the shortcomings of the prior art and provide a silencer cover for a compressor, which can increase sound wave rebound and reduce noise without expanding the volume of the silencer cavity, and can also improve the gas-liquid separation effect and reduce the oil discharge of the compressor.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A silencer cover for a compressor comprises a silencer cover body and a silencer pipe, wherein the silencer cover body is detachably mounted on a bearing of the compressor, and the silencer cover body and the end surface of the bearing form a silencer cavity; an intermediate shaft hole is penetrated through the middle of the silencer cover body, an exhaust hole is penetrated through the silencer cover body, the silencer pipe is connected to the exhaust hole, and a plurality of through holes are penetrated through the side wall of the silencer pipe.
[0007] Therefore, according to the silencer cover for the compressor of the embodiment of the utility model, without expanding the volume of the silencer chamber, a silencer pipe is added to the silencer cover body, and the silencer pipe is connected to the exhaust hole, and a plurality of through holes are opened on the side wall of the silencer pipe; in this way, the sound of the air flow discharged from the exhaust hole can increase its sound wave rebound in the silencer pipe, thereby canceling out more sound waves, and effectively reducing the noise at the exhaust hole; in addition, the plurality of through holes on the side wall of the silencer pipe can improve the separation effect of the gas-liquid two-phase refrigerant, thereby reducing the oil discharge amount of the compressor.
[0008] As an implementation manner, the center line of the silencer pipe is parallel to the axis of the silencer cover, and the axis of the silencer pipe overlaps with the center line of the exhaust hole.
[0009] As an embodiment, the silencer pipe is a tubular structure with one end open, the open end of the silencer pipe is covered on the silencer cover body, and the axial projection of the silencer pipe completely covers the exhaust hole.
[0010] As an implementation manner, the inner diameter of the silencer pipe is D, the outer diameter of the exhaust hole is d, and d≤D.
[0011] As an implementation manner, the inner diameter D of the silencer pipe and the outer diameter d of the exhaust hole satisfy the relationship: d=0.9D.
[0012] As an implementation manner, the axial length of the silencer cover is L, the axial length of the silencer pipe is h, and 0.5L≤h≤1.5L.
[0013] As an implementation manner, the axial length L of the silencer cover and the axial length h of the silencer pipe satisfy the relationship: h=0.85L.
[0014] As an implementation manner, a plurality of exhaust holes are spaced apart on the silencer cover body, the plurality of exhaust holes are all connected to the silencer pipe, and the plurality of exhaust holes are distributed around the periphery of the intermediate shaft hole.
[0015] Secondly, the embodiment of the utility model further provides a pump body structure, which includes the compressor silencer cover of the above embodiment. According to the pump body structure of the embodiment of the utility model, by improving the compressor silencer cover, without expanding the volume of the silencer chamber, it is possible to increase the sound wave rebound, reduce the noise, improve the gas-liquid separation effect, and reduce the oil discharge of the compressor.
[0016] Furthermore, the embodiment of the utility model also provides a compressor, which includes the pump body structure of the above embodiment. According to the compressor of the embodiment of the utility model, by improving the silencer cover for the compressor, the sound wave rebound can be increased, the noise can be reduced, the gas-liquid separation effect can be improved, and the oil discharge of the compressor can be reduced without increasing the volume of the silencer chamber.
[0017] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is one of the structural schematic diagrams of a compressor silencer cover according to an embodiment of the utility model;
[0019] Figure 2This is a second structural schematic diagram of a compressor silencer cover according to an embodiment of the utility model;
[0020] Figure 3 A cross-sectional schematic diagram of a compressor silencer cover according to an embodiment of the utility model;
[0021] Figure 4 It is a structural schematic diagram of the pump body structure of an embodiment of the utility model;
[0022] Figure 5 This is a schematic diagram of the structure of a compressor according to an embodiment of the utility model.
[0023] Explanation of the reference numerals: 10, silencer cover; 11, silencer chamber; 12, intermediate shaft hole; 13, exhaust hole; 20, silencer pipe; 21, through hole; 30, pump body structure; 31, bearing; 40, compressor. DETAILED DESCRIPTION
[0024] To further illustrate each embodiment, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention.
[0025] In the related art, a rotary compressor is generally composed of an upper cover, a lower cover, a shell, a motor fixed inside to provide rotational power, and a pump body for compressing the refrigerant. Generally, the compressor pump body includes structures such as an upper bearing, a lower bearing, a silencer cover, a cylinder assembly, a piston, and a crankshaft. The silencer cover is generally sleeved on the crankshaft and forms a silencer chamber with the upper bearing and / or the lower bearing. The refrigerant gas compressed by the cylinder assembly is discharged from the compression chamber of the cylinder through the exhaust port on the upper bearing into the silencer chamber to achieve silencer and noise reduction. Among them, the silencer principle of the silencer cover is mainly to cancel each other out after the sound waves rebound in the silencer chamber, and then exhaust through the through hole of the silencer cover. With the miniaturization of the compressor, the volume of the silencer chamber of the silencer cover has become smaller and smaller, resulting in a decrease in the silencer effect. In addition, the airflow sound discharged from the silencer hole will also generate a certain amount of noise, resulting in a certain range of noise problems in the surrounding environment during the operation of the compressor.
[0026] In view of this, an embodiment of the utility model provides a silencer cover for a compressor, which can increase sound wave rebound, reduce noise, improve gas-liquid separation effect, and reduce the oil discharge of the compressor without expanding the volume of the silencer chamber 11.
[0027] See also Figures 1 to 3The embodiment of the utility model provides a silencer cover for a compressor, including a silencer cover body 10 and a silencer pipe 20. The silencer cover body 10 is detachably mounted on a bearing 31 of the compressor, and the silencer cover body 10 and the end surface of the bearing 31 form a silencer cavity 11; an intermediate shaft hole 12 is penetrated through the middle of the silencer cover body 10, an exhaust hole 13 is penetrated through the silencer cover body 10, the silencer pipe 20 is connected to the exhaust hole 13, and a plurality of through holes 21 are penetrated through the side wall of the silencer pipe 20.
[0028] Therefore, according to the silencer cover for the compressor of the embodiment of the utility model, without expanding the volume of the silencer chamber 11, a silencer pipe 20 is added to the silencer cover body 10, and the silencer pipe 20 is connected to the exhaust hole 13, and a plurality of through holes 21 are opened through the side wall of the silencer pipe 20; in this way, the sound of the air flow discharged from the exhaust hole 13 can increase its sound wave rebound in the silencer pipe 20, thereby canceling out more sound waves, and effectively reducing the noise at the exhaust hole 13; in addition, the plurality of through holes 21 on the side wall of the silencer pipe 20 can improve the separation effect of the gas-liquid two-phase refrigerant, thereby reducing the oil discharge amount of the compressor.
[0029] According to the compressor silencer cover of the embodiment of the utility model, the center line of the silencer pipe 20 is parallel to the axis of the silencer cover body 10, and the axis of the silencer pipe 20 overlaps with the center line of the exhaust hole 13. In the embodiment of the utility model, the silencer pipe 20 is a tubular structure with one end open, and the open end of the silencer pipe 20 is covered on the silencer cover body 10, and the axial projection of the silencer pipe 20 completely covers the exhaust hole 13.
[0030] It should be noted that in some other embodiments of the utility model, a plurality of through holes 21 may be provided at one end of the silencer 20 away from the exhaust hole 13. In these embodiments, since the through holes 21 are provided at one end of the silencer 20 away from the exhaust hole 13, the exhaust efficiency of the silencer 20 is improved.
[0031] In some embodiments of the present invention, the inner diameter of the muffler pipe 20 is D, the outer diameter of the exhaust hole 13 is d, and d≤D. In addition, the axial length of the muffler cover 10 is L, and the axial length of the muffler pipe 20 is h, and 0.5L≤h≤1.5L.
[0032] In some embodiments of the present invention, a plurality of exhaust holes 13 are spaced apart on the silencer cover 10 , the plurality of exhaust holes 13 are all connected to a silencer pipe 20 , and the plurality of exhaust holes 13 are distributed around the outer circumference of the middle shaft hole 12 .
[0033] Reference below Figures 1 to 3 A silencer cover for a compressor according to an optional embodiment of the present utility model is described in detail. It is worth noting that the following description is only an exemplary description and cannot be construed as a limitation to the present utility model.
[0034] like Figures 1 to 3 As shown, the silencer cover for the compressor of this embodiment includes a silencer cover body 10 and a silencer pipe 20. The silencer cover body 10 is detachably mounted on the bearing 31 of the compressor, and the silencer cover body 10 and the end surface of the bearing 31 form a silencer cavity 11. An intermediate shaft hole 12 is penetrated through the middle of the silencer cover body 10, an exhaust hole 13 is penetrated through the silencer cover body 10, the silencer pipe 20 is connected to the exhaust hole 13, and a plurality of through holes 21 are penetrated through the side wall of the silencer pipe 20.
[0035] The center line of the silencer hole is parallel to the axis of the silencer cover 10, and the axis of the silencer pipe 20 overlaps with the center line of the silencer hole. In the embodiment of the utility model, the silencer pipe 20 is a tubular structure with one end open, and the open end of the silencer pipe 20 is covered on the silencer cover 10, and the axial projection of the silencer pipe 20 completely covers the exhaust hole 13.
[0036] Further, the inner diameter of the silencer pipe 20 of the present embodiment is D, the outer diameter of the exhaust hole 13 is d, and the inner diameter D of the silencer pipe 20 and the outer diameter d of the exhaust hole 13 satisfy the relationship: d = 0.9D. In addition, the axial length of the silencer cover 10 of the present embodiment is L, the axial length of the silencer pipe 20 is h, and the axial length L of the silencer cover 10 and the axial length h of the silencer pipe 20 satisfy the relationship: h = 0.85L.
[0037] In addition, four exhaust holes 13 are spaced apart on the silencer cover 10 of the present embodiment. The four exhaust holes 13 are all connected to a silencer pipe 20 , and the four exhaust holes 13 are distributed around the outer circumference of the middle shaft hole 12 .
[0038] Reference below Figures 1 to 3 A silencer cover for a compressor according to an optional embodiment of the present utility model is described in detail. It is worth noting that the following description is only an exemplary description and cannot be construed as a limitation to the present utility model.
[0039] like Figures 1 to 3 As shown, the silencer cover for the compressor of this embodiment includes a silencer cover body 10 and a silencer pipe 20. The silencer cover body 10 is detachably mounted on the bearing 31 of the compressor, and the silencer cover body 10 and the end surface of the bearing 31 form a silencer cavity 11. An intermediate shaft hole 12 is penetrated through the middle of the silencer cover body 10, an exhaust hole 13 is penetrated through the silencer cover body 10, the silencer pipe 20 is connected to the exhaust hole 13, and a plurality of through holes 21 are penetrated through the side wall of the silencer pipe 20.
[0040] The center line of the silencer hole is parallel to the axis of the silencer cover 10, and the axis of the silencer pipe 20 overlaps with the center line of the silencer hole. In the embodiment of the utility model, the silencer pipe 20 is a tubular structure with one end open, and the open end of the silencer pipe 20 is covered on the silencer cover 10, and the axial projection of the silencer pipe 20 completely covers the exhaust hole 13.
[0041] Further, the inner diameter of the silencer pipe 20 of the present embodiment is D, the outer diameter of the exhaust hole 13 is d, and the inner diameter D of the silencer pipe 20 and the outer diameter d of the exhaust hole 13 satisfy the relationship: d = D. In addition, the axial length of the silencer cover body 10 of the present embodiment is L, the axial length of the silencer pipe 20 is h, and the axial length L of the silencer cover body 10 and the axial length h of the silencer pipe 20 satisfy the relationship: h = 0.5L.
[0042] In addition, four exhaust holes 13 are spaced apart on the silencer cover 10 of the present embodiment. The four exhaust holes 13 are all connected to a silencer pipe 20 , and the four exhaust holes 13 are distributed around the outer circumference of the middle shaft hole 12 .
[0043] Reference below Figures 1 to 3 A silencer cover for a compressor according to an optional embodiment of the present utility model is described in detail. It is worth noting that the following description is only an exemplary description and cannot be construed as a limitation to the present utility model.
[0044] like Figures 1 to 3 As shown, the silencer cover for the compressor of this embodiment includes a silencer cover body 10 and a silencer pipe 20. The silencer cover body 10 is detachably mounted on the bearing 31 of the compressor, and the silencer cover body 10 and the end surface of the bearing 31 form a silencer cavity 11. An intermediate shaft hole 12 is penetrated through the middle of the silencer cover body 10, an exhaust hole 13 is penetrated through the silencer cover body 10, the silencer pipe 20 is connected to the exhaust hole 13, and a plurality of through holes 21 are penetrated through the side wall of the silencer pipe 20.
[0045] The center line of the silencer hole is parallel to the axis of the silencer cover 10, and the axis of the silencer pipe 20 overlaps with the center line of the silencer hole. In the embodiment of the utility model, the silencer pipe 20 is a tubular structure with one end open, and the open end of the silencer pipe 20 is covered on the silencer cover 10, and the axial projection of the silencer pipe 20 completely covers the exhaust hole 13.
[0046] Further, the inner diameter of the silencer pipe 20 of the present embodiment is D, the outer diameter of the exhaust hole 13 is d, and the inner diameter D of the silencer pipe 20 and the outer diameter d of the exhaust hole 13 satisfy the relationship: d = 0.8D. In addition, the axial length of the silencer cover body 10 of the present embodiment is L, the axial length of the silencer pipe 20 is h, and the axial length L of the silencer cover body 10 and the axial length h of the silencer pipe 20 satisfy the relationship: h = 1.5L.
[0047] In addition, four exhaust holes 13 are spaced apart on the silencer cover 10 of the present embodiment. The four exhaust holes 13 are all connected to a silencer pipe 20 , and the four exhaust holes 13 are distributed around the outer circumference of the middle shaft hole 12 .
[0048] like Figure 4 As shown, the embodiment of the utility model further provides a pump body structure 30, which includes the compressor silencer cover of the above embodiment. According to the pump body structure 30 of the embodiment of the utility model, by improving the compressor silencer cover, without expanding the volume of the silencer chamber 11, it is possible to increase the sound wave rebound, reduce the noise, improve the gas-liquid separation effect, and reduce the oil discharge of the compressor.
[0049] like Figure 5 As shown, the embodiment of the utility model further provides a compressor 40, which includes the pump body structure 30 of the above embodiment. According to the compressor 40 of the embodiment of the utility model, by improving the silencer cover for the compressor, without expanding the volume of the silencer chamber 11, it is possible to increase the sound wave rebound, reduce the noise, improve the gas-liquid separation effect, and reduce the oil discharge amount of the compressor 40.
[0050] In the description of the present invention, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "left", "right", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0051] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model compressor silencer cover, pump body structure and compressor. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.
Claims
1. A silencer cover for a compressor, characterized in that: It includes a silencer cover body and a silencer pipe. The silencer cover body can be detachably installed on the bearing of the compressor, and the silencer cover body and the end surface of the bearing form a silencer cavity. An intermediate shaft hole is penetrated in the middle of the silencer cover body, an exhaust hole is penetrated on the silencer cover body, the silencer pipe is connected with the exhaust hole, and a plurality of through holes are penetrated on the side wall of the silencer pipe.
2. The compressor silencer cover according to claim 1, characterized in that: The center line of the silencer pipe is parallel to the axis of the silencer cover, and the axis of the silencer pipe overlaps with the center line of the exhaust hole.
3. The compressor silencer cover according to claim 2, characterized in that: The silencer pipe is a tubular structure with one end open, the open end of the silencer pipe is covered on the silencer cover body, and the axial projection of the silencer pipe completely covers the exhaust hole.
4. The compressor silencer cover according to claim 2, characterized in that: The inner diameter of the silencer pipe is D, and the outer diameter of the exhaust hole is d, where d≤D.
5. The compressor silencer cover according to claim 4, characterized in that: The inner diameter D of the muffler pipe and the outer diameter d of the exhaust hole satisfy the relationship: d=0.9D.
6. The compressor silencer cover according to claim 2, characterized in that: The axial length of the silencer cover is L, the axial length of the silencer pipe is h, and 0.5L≤h≤1.5L.
7. The compressor silencer cover according to claim 6, characterized in that: The axial length L of the silencer cover and the axial length h of the silencer pipe satisfy the relationship: h=0.85L.
8. The compressor silencer cover according to claim 1, characterized in that: The silencer cover body is provided with a plurality of exhaust holes at intervals, the plurality of exhaust holes are all connected with the silencer pipe, and the plurality of exhaust holes are distributed around the outer circumference of the intermediate shaft hole.
9. A pump structure, characterized in that: It comprises a silencer cover for a compressor as claimed in any one of claims 1 to 8.
10. A compressor, characterized in that: Comprising the pump body structure as claimed in claim 9.