Pump body structure and compressor

Abstract

The utility model relates to a kind of pump body structure and compressor, pump body structure includes the upper sound-absorbing cover, upper bearing, cylinder assembly, lower bearing, lower sound-absorbing cover sequentially connected along axial direction, and the upper sound-absorbing cover and upper bearing are enclosed into upper sound-absorbing chamber, and the upper sound-absorbing cover is equipped with the gas outlet hole of communicating upper sound-absorbing chamber, and lower sound-absorbing cover and lower bearing enclose into lower sound-absorbing chamber;Upper bearing, cylinder assembly and lower bearing are sequentially perforated with the exhaust passage for communicating upper sound-absorbing chamber and lower sound-absorbing chamber along axial direction, and the exhaust passage is provided with the flow inlet at the end face of lower bearing away from cylinder assembly, and the exhaust passage is provided with the flow outlet at the end face of upper bearing away from cylinder assembly, and the inner diameter of flow inlet and flow outlet is all greater than the inner diameter of exhaust passage.The pump body structure of the utility model, by setting flow inlet and flow outlet at the two ends of exhaust passage, can make the exhaust of pump body structure more smooth and fast, effectively provide the energy efficiency of compressor.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, and in particular to a pump body structure and a compressor. Background Technology

[0002] During operation, the compressor compresses the refrigerant through the compression chamber of the compression mechanism. When the refrigerant gas is compressed to a specified pressure inside the compression chamber, the exhaust valve connected to the compression chamber opens, allowing the refrigerant gas to exit the compression chamber. With the increasing demand for larger displacement compressors, dual exhaust methods (top and bottom exhaust) are increasingly being adopted. This is achieved by creating a refrigerant passage connecting the upper and lower exhaust chambers through the pump body structure. However, existing refrigerant passages are straight-groove types. These straight-groove passages lack flow guidance, hindering the rapid discharge of refrigerant gas and reducing compressor efficiency. Utility Model Content

[0003] Based on this, the purpose of this utility model is to overcome the shortcomings of the prior art and provide a pump body structure and compressor. By setting a guide inlet and a guide outlet at both ends of the exhaust channel, the exhaust of the pump body structure can be smoother and faster, effectively improving the energy efficiency of the compressor.

[0004] To achieve the above objectives, the first aspect of this utility model provides a pump body structure, including an upper muffler cover, an upper bearing, a cylinder assembly, a lower bearing, and a lower muffler cover connected sequentially along the axial direction; the upper muffler cover and the upper bearing form an upper muffler cavity, the upper muffler cover has an air outlet hole communicating with the upper muffler cavity, the lower muffler cover and the lower bearing form a lower muffler cavity, the cylinder assembly is provided with a compression chamber, and the lower bearing has a lower exhaust valve seat communicating with the compression chamber and the lower muffler cavity;

[0005] The upper bearing, cylinder assembly, and lower bearing are sequentially provided with an exhaust channel for connecting the upper muffler cavity and the lower muffler cavity along the axial direction. The exhaust channel has a flow guide inlet at the end face of the lower bearing away from the cylinder assembly and a flow guide outlet at the end face of the upper bearing away from the cylinder assembly. The inner diameters of the flow guide inlet and the flow guide outlet are both larger than the inner diameter of the exhaust channel.

[0006] Furthermore, the inner diameter of the flow guide inlet gradually increases from the connection point between the flow guide inlet and the exhaust channel toward the end face of the lower bearing; the inner diameter of the flow guide outlet gradually increases from the connection point between the flow guide outlet and the exhaust channel toward the end face of the upper bearing.

[0007] Therefore, according to the pump body structure of this utility model, an exhaust channel is provided through the upper bearing, cylinder assembly, and lower bearing. This exhaust channel allows refrigerant gas from the lower muffler chamber to be discharged into the upper muffler chamber and then discharged through the vent of the upper muffler cover. Furthermore, this utility model provides a flow guide inlet on the end face of the exhaust channel at the lower bearing, with the inner diameter of the flow guide inlet being larger than the inner diameter of the exhaust channel. This allows the refrigerant gas in the lower muffler chamber to enter the exhaust channel more smoothly. Furthermore, a flow guide outlet is provided on the end face of the exhaust channel at the upper bearing, with the inner diameter of the outlet gradually increasing outwards from the exhaust channel. This allows the refrigerant gas in the exhaust channel to quickly enter the upper muffler chamber, thereby optimizing the flow guide effect of the exhaust channel and ensuring that the refrigerant gas in the lower muffler chamber can be smoothly and quickly discharged into the upper muffler chamber, thus improving the compressor's energy efficiency.

[0008] In one implementation, the inner wall of the flow inlet forms a first flow-guiding inclined surface, and the first flow-guiding inclined surface is located on the same curved surface.

[0009] In one implementation, the first guide inclined surface is constructed as an irregular curved surface.

[0010] In one embodiment, the inner wall of the flow outlet forms a second flow-guiding inclined surface, and the second flow-guiding inclined surface is located on the same curved surface.

[0011] In one implementation, the second guide inclined surface is constructed as an irregular curved surface.

[0012] In one embodiment, the upper bearing is provided with an upper exhaust valve seat that connects the compression chamber and the upper silencer chamber.

[0013] In one embodiment, the cylinder assembly includes a cylinder body, and the cylinder body has a compression chamber extending through it in the axial direction.

[0014] In one embodiment, the cylinder assembly includes a first cylinder, an intermediate plate, and a second cylinder connected axially in sequence, wherein the first cylinder and the second cylinder are respectively provided with compression chambers through the cylinder in the axial direction.

[0015] A second aspect of this utility model provides a compressor comprising the pump body structure described in any of the preceding claims. According to the compressor of this utility model embodiment, by providing a guide inlet and a guide outlet at both ends of the exhaust passage, the exhaust from the pump body structure can be made smoother and faster, effectively improving the compressor's energy efficiency.

[0016] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is one of the structural schematic diagrams of the pump body structure according to an embodiment of the present utility model;

[0018] Figure 2 This is a second schematic diagram of the pump body structure according to an embodiment of the present utility model;

[0019] Figure 3 for Figure 2 A schematic cross-sectional view along direction AA is shown.

[0020] Figure 4 This is one of the exploded view diagrams of the pump body structure according to an embodiment of the present utility model;

[0021] Figure 5 This is the second exploded view of the pump body structure according to an embodiment of the present utility model;

[0022] Figure 6 This is a schematic diagram of the upper bearing structure according to an embodiment of the present utility model;

[0023] Figure 7 This is a schematic diagram of the structure of the lower bearing in an embodiment of the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 10. Upper bearing; 11. Upper exhaust valve seat; 12. Guide outlet; 13. Second guide inclined surface; 20. Cylinder assembly; 21. Compression chamber; 22. Exhaust passage; 30. Lower bearing; 31. Lower exhaust valve seat; 32. Guide inlet; 33. First guide inclined surface. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this application clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0028] In the following description, when referring to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims. In the description of this application, it should be understood that the terms "first," "second," "third," etc., are used only to distinguish similar objects and are not necessarily used to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0029] In related technologies, during compressor operation, the refrigerant is compressed through the compression chamber of the compression mechanism. When the refrigerant gas is compressed to a specified pressure inside the compression chamber, the exhaust valve connected to the compression chamber opens, and the refrigerant gas is discharged from the compression chamber through the exhaust valve. With the increasing demand for larger displacement compressors, the exhaust method is increasingly adopting a dual exhaust system with upper and lower exhaust chambers. This is specifically achieved by forming a refrigerant passage connecting the upper and lower exhaust chambers through the pump body structure. However, existing refrigerant passages are straight-groove types. These straight-groove passages lack flow guiding effect, which is not conducive to the rapid discharge of refrigerant gas, leading to reduced compressor efficiency.

[0030] Therefore, this utility model embodiment provides a pump body structure and a compressor. According to the pump body structure and compressor of this utility model embodiment, by providing a guide inlet and a guide outlet at both ends of the exhaust channel, the exhaust of the pump body structure can be made smoother and faster, effectively improving the energy efficiency of the compressor.

[0031] Please see Figures 1 to 7 The first aspect of this utility model provides a pump body structure, including an upper muffler cover, an upper bearing 10, a cylinder assembly 20, a lower bearing 30, and a lower muffler cover connected sequentially along the axial direction; the upper muffler cover and the upper bearing 10 form an upper muffler cavity, the upper muffler cover has an air outlet hole communicating with the upper muffler cavity, the lower muffler cover and the lower bearing 30 form a lower muffler cavity, the cylinder assembly 20 is provided with a compression chamber 21, the upper bearing 10 has an upper exhaust valve seat 11 communicating with the compression chamber 21 and the upper muffler cavity, and the lower bearing 30 has a lower exhaust valve seat 31 communicating with the compression chamber 21 and the lower muffler cavity;

[0032] The upper bearing 10, cylinder assembly 20 and lower bearing 30 are sequentially provided with an exhaust channel 22 for connecting the upper muffler cavity and the lower muffler cavity in the axial direction. The exhaust channel 22 has a guide inlet 32 ​​at the end face of the lower bearing 30 away from the cylinder assembly 20 and a guide outlet 12 at the end face of the upper bearing 10 away from the cylinder assembly 20. The inner diameters of the guide inlet 32 ​​and the guide outlet 12 are both larger than the inner diameter of the exhaust channel 22.

[0033] The inner diameter of the guide inlet 32 ​​gradually increases from the connection between the guide inlet 32 ​​and the exhaust channel 22 toward the end face of the lower bearing 30; the inner diameter of the guide outlet 12 gradually increases from the connection between the guide outlet 12 and the exhaust channel 22 toward the end face of the upper bearing 10.

[0034] Therefore, according to the pump body structure of this utility model, an exhaust channel 22 is provided through the upper bearing 10, cylinder assembly 20, and lower bearing 30. Through this exhaust channel 22, the refrigerant gas in the lower muffler chamber can be discharged into the upper muffler chamber and then discharged through the vent hole of the upper muffler cover. Furthermore, this utility model provides a guide inlet 32 ​​on the end face of the lower bearing 30 of the exhaust channel 22, and the inner diameter of the guide inlet 32 ​​is larger than the inner diameter of the exhaust channel 22. 32 allows the refrigerant gas in the lower muffler cavity to enter the exhaust channel 22 more smoothly. By setting a guide outlet 12 on the end face of the upper bearing 10 of the exhaust channel 22, the inner diameter of the guide outlet 12 gradually increases outward from the exhaust channel 22, so that the refrigerant gas in the exhaust channel 22 can quickly enter the upper muffler cavity, thereby optimizing the guiding effect of the exhaust channel 22 and allowing the refrigerant gas in the lower muffler cavity to be smoothly and quickly discharged into the upper muffler cavity, thereby improving the energy efficiency of the compressor.

[0035] Optionally, in some embodiments of this utility model, the inner wall of the flow inlet 32 ​​forms a first flow guiding inclined surface 33, and the first flow guiding inclined surface 33 is located on the same curved surface. The first flow guiding inclined surface 33 is constructed as an irregular curved surface.

[0036] Optionally, in some embodiments of this invention, the inner wall of the flow outlet 12 forms a second flow guiding inclined surface 13, which is located on the same curved surface. The second flow guiding inclined surface 13 is constructed as an irregular curved surface.

[0037] Optionally, in some embodiments of this utility model, the cylinder assembly 20 includes a cylinder body, and a compression chamber 21 is formed through the cylinder body in the axial direction. It can be understood that in these embodiments, the cylinder assembly 20 has a single cylinder, that is, the pump body structure is a single-cylinder compression structure.

[0038] Optionally, in some embodiments of this utility model, the cylinder assembly 20 includes a first cylinder, an intermediate plate, and a second cylinder connected axially in sequence. The first and second cylinders each have a compression chamber 21 extending through them in the axial direction. An upper bearing 10 is connected to the first cylinder and has an upper exhaust valve seat 11 connecting the compression chamber 21 of the first cylinder to the upper silencer chamber. A lower bearing 30 is connected to the second cylinder and has a lower exhaust valve seat 31 connecting the compression chamber 21 of the second cylinder to the lower silencer chamber. It can be understood that in these embodiments, the cylinder assembly 20 has two cylinders, i.e., the pump body structure is a dual-cylinder compression structure.

[0039] The following is combined with Figures 1 to 7 The following is a detailed description of a specific embodiment of the pump body structure according to the present invention. It is worth understanding that the following is merely an illustrative description and should not be construed as a limitation of the present invention.

[0040] This embodiment provides a pump body structure, including an upper muffler cover, an upper bearing 10, a cylinder assembly 20, a lower bearing 30, and a lower muffler cover connected sequentially along the axial direction. The upper muffler cover and the upper bearing 10 form an upper muffler cavity, and the upper muffler cover has an air outlet hole communicating with the upper muffler cavity. The lower muffler cover and the lower bearing 30 form a lower muffler cavity. The cylinder assembly 20 is provided with a compression chamber 21. The upper bearing 10 has an upper exhaust valve seat 11 communicating with the compression chamber 21 and the upper muffler cavity. The lower bearing 30 has an exhaust valve seat communicating with the compression chamber. 21 and the lower exhaust valve seat 31 of the lower muffler chamber; the upper bearing 10, cylinder assembly 20 and lower bearing 30 are sequentially provided with an exhaust passage 22 for connecting the upper muffler chamber and the lower muffler chamber in the axial direction. The exhaust passage 22 has a guide inlet 32 ​​at the end face of the lower bearing 30 away from the cylinder assembly 20 and a guide outlet 12 at the end face of the upper bearing 10 away from the cylinder assembly 20. The inner diameters of the guide inlet 32 ​​and the guide outlet 12 are both larger than the inner diameter of the exhaust passage 22.

[0041] Specifically, in this embodiment, the inner diameter of the guide inlet 32 ​​gradually increases from the connection between the guide inlet 32 ​​and the exhaust channel 22 toward the end face of the lower bearing 30; the inner diameter of the guide outlet 12 gradually increases from the connection between the guide outlet 12 and the exhaust channel 22 toward the end face of the upper bearing 10.

[0042] Furthermore, in this embodiment, the inner wall of the flow inlet 32 ​​forms a first flow guiding inclined surface 33, which is located on the same curved surface and is constructed as an irregular curved surface. Additionally, the inner wall of the flow outlet 12 in this embodiment forms a second flow guiding inclined surface 13, which is located on the same curved surface and is constructed as an irregular curved surface.

[0043] In addition, the cylinder assembly 20 of this embodiment includes a cylinder body, which has a compression chamber 21 extending through it in the axial direction.

[0044] Therefore, according to the pump body structure of this utility model, an exhaust channel 22 is provided through the upper bearing 10, cylinder assembly 20, and lower bearing 30. Through this exhaust channel 22, the refrigerant gas in the lower muffler chamber can be discharged into the upper muffler chamber and then discharged through the vent hole of the upper muffler cover. Furthermore, this utility model provides a guide inlet 32 ​​on the end face of the lower bearing 30 of the exhaust channel 22, and the inner diameter of the guide inlet 32 ​​is larger than the inner diameter of the exhaust channel 22. 32 allows the refrigerant gas in the lower muffler cavity to enter the exhaust channel 22 more smoothly. By setting a guide outlet 12 on the end face of the upper bearing 10 of the exhaust channel 22, the inner diameter of the guide outlet 12 gradually increases outward from the exhaust channel 22, so that the refrigerant gas in the exhaust channel 22 can quickly enter the upper muffler cavity, thereby optimizing the guiding effect of the exhaust channel 22 and allowing the refrigerant gas in the lower muffler cavity to be smoothly and quickly discharged into the upper muffler cavity, thereby improving the energy efficiency of the compressor.

[0045] The following describes another specific embodiment of the pump body structure according to the present invention. It is worth understanding that this embodiment is only illustrative and should not be construed as a limitation of the present invention.

[0046] This embodiment provides a pump body structure, including an upper muffler cover, an upper bearing 10, a cylinder assembly 20, a lower bearing 30, and a lower muffler cover connected sequentially along the axial direction. The upper muffler cover and the upper bearing 10 form an upper muffler cavity, and the upper muffler cover has an air outlet hole communicating with the upper muffler cavity. The lower muffler cover and the lower bearing 30 form a lower muffler cavity. The cylinder assembly 20 is provided with a compression chamber 21. The upper bearing 10 has an upper exhaust valve seat 11 communicating with the compression chamber 21 and the upper muffler cavity. The lower bearing 30 has an exhaust valve seat communicating with the compression chamber. 21 and the lower exhaust valve seat 31 of the lower muffler chamber; the upper bearing 10, cylinder assembly 20 and lower bearing 30 are sequentially provided with an exhaust passage 22 for connecting the upper muffler chamber and the lower muffler chamber in the axial direction. The exhaust passage 22 has a guide inlet 32 ​​at the end face of the lower bearing 30 away from the cylinder assembly 20 and a guide outlet 12 at the end face of the upper bearing 10 away from the cylinder assembly 20. The inner diameters of the guide inlet 32 ​​and the guide outlet 12 are both larger than the inner diameter of the exhaust passage 22.

[0047] Specifically, in this embodiment, the inner diameter of the guide inlet 32 ​​gradually increases from the connection between the guide inlet 32 ​​and the exhaust channel 22 toward the end face of the lower bearing 30; the inner diameter of the guide outlet 12 gradually increases from the connection between the guide outlet 12 and the exhaust channel 22 toward the end face of the upper bearing 10.

[0048] Furthermore, in this embodiment, the inner wall of the flow inlet 32 ​​forms a first flow guiding inclined surface 33, which is located on the same curved surface and is constructed as an irregular curved surface. Additionally, the inner wall of the flow outlet 12 in this embodiment forms a second flow guiding inclined surface 13, which is located on the same curved surface and is constructed as an irregular curved surface.

[0049] In addition, the cylinder assembly 20 of this embodiment includes a first cylinder, an intermediate plate, and a second cylinder connected axially in sequence. The first cylinder and the second cylinder are respectively provided with compression chambers 21 through them in the axial direction. The upper bearing 10 is connected to the first cylinder and has an upper exhaust valve seat 11 that connects the compression chamber 21 of the first cylinder to the upper muffler chamber. The lower bearing 30 is connected to the second cylinder and has a lower exhaust valve seat 31 that connects the compression chamber 21 of the second cylinder to the lower muffler chamber.

[0050] A second aspect of this utility model provides a compressor comprising the pump body structure described above. According to an embodiment of this utility model, by providing a guide inlet 32 ​​and a guide outlet 12 at both ends of the exhaust passage 22, the exhaust from the pump body structure can be made smoother and faster, effectively improving the compressor's energy efficiency.

[0051] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the pump body structure and compressor of this utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A pump body structure, characterized in that: The device includes an upper muffler cover, an upper bearing, a cylinder assembly, a lower bearing, and a lower muffler cover connected sequentially along the axial direction. The upper muffler cover and the upper bearing form an upper muffler cavity. The upper muffler cover has an air outlet that communicates with the upper muffler cavity. The lower muffler cover and the lower bearing form a lower muffler cavity. The cylinder assembly has a compression chamber. The lower bearing has a lower exhaust valve seat that communicates with the compression chamber and the lower muffler cavity. The upper bearing, cylinder assembly, and lower bearing are sequentially provided with an exhaust channel for connecting the upper muffler cavity and the lower muffler cavity along the axial direction. The exhaust channel has a flow guide inlet at the end face of the lower bearing away from the cylinder assembly and a flow guide outlet at the end face of the upper bearing away from the cylinder assembly. The inner diameters of the flow guide inlet and the flow guide outlet are both larger than the inner diameter of the exhaust channel.

2. The pump body structure according to claim 1, characterized in that: The inner diameter of the flow guide inlet gradually increases from the connection point between the flow guide inlet and the exhaust channel toward the end face of the lower bearing; the inner diameter of the flow guide outlet gradually increases from the connection point between the flow guide outlet and the exhaust channel toward the end face of the upper bearing.

3. The pump body structure according to claim 2, characterized in that: The inner wall of the flow guide inlet forms a first flow guide inclined surface, and the first flow guide inclined surface is located on the same curved surface.

4. The pump body structure according to claim 3, characterized in that: The first guide slope is constructed as an irregular curved surface.

5. The pump body structure according to claim 2, characterized in that: The inner wall of the flow outlet forms a second flow-guiding inclined surface, which is located on the same curved surface.

6. The pump body structure according to claim 5, characterized in that: The second guide slope is constructed as an irregular curved surface.

7. The pump body structure according to claim 1, characterized in that: The upper bearing is provided with an upper exhaust valve seat that connects the compression chamber and the upper silencer chamber.

8. The pump body structure according to claim 1, characterized in that: The cylinder assembly includes a cylinder body, and the cylinder body has a compression chamber extending through it in the axial direction.

9. The pump body structure according to claim 1, characterized in that: The cylinder assembly includes a first cylinder, an intermediate plate, and a second cylinder connected axially in sequence, with the first cylinder and the second cylinder respectively having a compression chamber extending through them in the axial direction.

10. A compressor, characterized in that: Includes the pump body structure according to any one of claims 1 to 9.

Images