Integrated structure, compressor pump body assembly and compressor

Abstract

The application relates to the technical field of compressors, in particular to an integrated structure, a compressor pump body assembly and a compressor. The integrated structure comprises a cylinder, an upper flange, a suction hole, an exhaust hole and a sliding vane groove. The cylinder comprises a cylinder main body and a working cavity. The suction hole extends to the working cavity in the radial direction from the outer wall surface of the cylinder main body. The sliding vane groove is arranged on the cylinder main body. The upper flange is arranged at one end of the cylinder in the axial direction. The cylinder main body and the upper flange are integrally formed. A hollow cavity is formed in the cylinder main body and the upper flange. The outlet of the exhaust hole is arranged on the end surface of the upper flange away from the cylinder. On the one hand, the integrated combination of the upper flange and the cylinder avoids the assembly deformation in the assembly process of the upper flange and the cylinder in the prior art. On the other hand, the integrated structure forms the hollow cavity by adopting the hollow design inside, has excellent heat insulation effect, can reduce the wall heat transfer and the like, reduces the heat transfer loss, and improves the overall performance of the compressor.

Description

Technical Field

[0001] This application relates to the field of compressor technology, and in particular to an integrated structure, a compressor pump assembly, and a compressor. Background Technology

[0002] In existing technologies, conventional rotary compressors are mature in both production and application, and have gained widespread acceptance. The compressor pump body typically uses bolts to connect the cylinder and flange. Since important structures such as the intake and exhaust systems and the combustion chamber are located within the cylinder and flange, tightening the bolts can cause deformation of the functional channels, thus affecting the compressor's energy efficiency. On the other hand, the pump body of a rolling rotor compressor is composed of multiple mechanically connected parts, resulting in a complex assembly process and larger gaps between parts, leading to poor sealing. Furthermore, heat transfer losses due to wall heat transfer are unavoidable. Summary of the Invention

[0003] To address the aforementioned technical problems, this application provides an integrated structure, a compressor pump assembly, and a compressor.

[0004] Therefore, in a first aspect, embodiments of this application provide an integrated structure for a compressor pump body assembly, which includes a cylinder, an upper flange, an intake port, an exhaust port, and a vane groove. The cylinder includes a cylinder body and a working chamber. The intake port extends radially from the outer wall surface of the cylinder body to the working chamber. The vane groove is formed on the cylinder body. The upper flange is disposed at one end of the cylinder in the axial direction. The cylinder body and the upper flange are integrally formed. A hollow cavity is formed inside the cylinder body and the upper flange. The outlet of the exhaust port is located on the end face of the upper flange away from the cylinder.

[0005] Furthermore, the hollow cavity includes a first cavity formed inside the cylinder body and a second cavity disposed inside the upper flange, the first cavity and the second cavity communicating with each other.

[0006] Furthermore, the exhaust port extends axially from the working chamber to the end face of the upper flange away from the cylinder.

[0007] Furthermore, the hollow cavity includes a first cavity formed inside the cylinder body and a second cavity disposed inside the upper flange, with a partition plate formed between the first cavity and the second cavity.

[0008] Furthermore, the exhaust port includes a first exhaust port and a second exhaust port. The first exhaust port connects the working chamber and the second chamber. The inlet of the second exhaust port connects to the second chamber. The outlet of the second exhaust port is located on the end face of the upper flange away from the cylinder.

[0009] Furthermore, the first exhaust port and the second exhaust port are offset in the axial direction.

[0010] Furthermore, several axially extending sound-absorbing columns are formed within the second cavity.

[0011] Secondly, embodiments of this application provide a compressor pump body assembly, which includes:

[0012] As provided in the first aspect of this application, the upper flange is provided with a first bushing;

[0013] A lower flange is connected to the end of the cylinder that is away from the upper flange, and a second bushing is provided on the lower flange;

[0014] The crankshaft passes through the first bushing, the working chamber, and the second bushing in sequence.

[0015] Furthermore, the integrated structure is connected to the lower flange by laser welding.

[0016] Thirdly, embodiments of this application provide a compressor that includes the compressor pump assembly provided in the second aspect of this application.

[0017] This application has the following beneficial effects: On the one hand, by integrating the upper flange and cylinder into a single design, the original bolt assembly method can be eliminated, thereby avoiding assembly deformation during the assembly process of the upper flange and cylinder in related technologies; on the other hand, the integrated structure adopts an internal hollow design to form a hollow cavity, which has excellent heat insulation effect, can reduce heat transfer phenomena such as wall heat transfer, reduce heat loss, and improve the overall performance of the compressor. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0021] Figure 1This illustration schematically shows a three-dimensional integrated structure provided in an embodiment of this application. Figure 1 ;

[0022] Figure 2 This illustration schematically shows a three-dimensional integrated structure provided in an embodiment of this application. Figure 2 ;

[0023] Figure 3 This schematic diagram shows a top view of an integrated structure provided in an embodiment of this application;

[0024] Figure 4 schematically shown Figure 3 AOA cross-sectional view of the integrated structure in one embodiment;

[0025] Figure 5 schematically shown Figure 3 AOA cross-sectional view of the integrated structure in another embodiment;

[0026] Figure 6 schematically shown Figure 3 AOA cross-sectional view of the integrated structure in another embodiment;

[0027] Figure 7 A perspective view of a compressor pump body assembly provided in an embodiment of this application is shown schematically.

[0028] Figure 8 This illustration schematically shows a comparison of the effects of a compressor before and after modification using the compressor pump body assembly provided in the embodiments of this application. Figure 1 ;

[0029] Figure 9 This illustration schematically shows a comparison of the effects of a compressor before and after modification using the compressor pump body assembly provided in the embodiments of this application. Figure 2 ;

[0030] Figure 10 The illustration shows a longitudinal sectional view of a first type of compressor provided in an embodiment of this application;

[0031] Figure 11 This schematically illustrates a longitudinal sectional view of a second type of compressor provided in an embodiment of this application;

[0032] Figure 12 This schematically illustrates a partial perspective view of the structure of the second type of compressor provided in an embodiment of this application;

[0033] Figure 13 This schematically illustrates a partial cross-sectional view of the second type of compressor provided in an embodiment of this application;

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Cylinder; 101. Cylinder body; 102. Working chamber; 2. Upper flange; 3. Suction port; 4. Exhaust port; 5. Sliding vane groove; 6. First chamber; 7. Second chamber; 8. Isolation plate; 9. Silencing column; 10. Lower flange; 11. Crankshaft; 12. Roller; 13. First bushing; 14. Second bushing; 15. Housing; 16. Distributor; 17. Motor; 18. Suction pipe; 19. Power chamber; 20. Third chamber; 21. Opening; 22. Distributor chamber; 23. Return pipe; 24. Air inlet; 25. Suction channel; 27. Fourth chamber; 28. Liquid return hole; 29. ​​Refrigeration oil flow channel. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0037] The following disclosure provides many different embodiments or examples for implementing different structures of the embodiments of this application. To simplify the disclosure of the embodiments of this application, components and arrangements of specific examples are described below. Of course, these are merely examples and are not intended to limit the embodiments of this application. Furthermore, reference numerals and / or letters may be repeated in different examples of the embodiments of this application. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0038] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0039] like Figure 1-6 As shown, the integrated structure for the compressor pump body assembly includes a cylinder 1, an upper flange 2, a suction port 3, an exhaust port 4, and a vane groove 5. The cylinder 1 includes a cylinder body 101 and a working chamber 102. The suction port 3 extends radially from the outer wall of the cylinder body 101 to the working chamber 102. The vane groove 5 is formed on the cylinder body 101. The upper flange 2 is located at one end of the cylinder 1 in the axial direction. The cylinder body 101 and the upper flange 2 are integrally formed. Hollow cavities are formed inside the cylinder body 101 and the upper flange 2. The outlet of the exhaust port 4 is located on the end face of the upper flange 2 away from the cylinder 1.

[0040] In the above implementation, on the one hand, by integrating the upper flange 2 and cylinder 1 into a single design, the original bolt assembly method can be eliminated, thereby avoiding assembly deformation during the assembly process of the upper flange 2 and cylinder 1 in related technologies; on the other hand, the integrated structure adopts a hollow design to form a hollow cavity, achieving lightweight structure while having excellent heat insulation effect, which can reduce wall heat transfer and other phenomena, reduce heat loss, and improve the overall performance of the compressor.

[0041] In some implementations, such as Figure 4 As shown, the hollow cavity includes a first cavity 6 formed inside the cylinder body 101 and a second cavity 7 disposed inside the upper flange 2, with the first cavity 6 and the second cavity 7 communicating with each other. By forming cavities inside both the cylinder body 101 and the upper flange 2, the lightweight effect of the structure can be maximized, and the axial dimension of the hollow cavity structure can be increased, forming a sufficiently spacious internal hollow structure, which can further reduce wall heat transfer and reduce heat loss.

[0042] Based on the above embodiment, the exhaust port 4 extends axially from the working chamber 102 to the end face of the upper flange 2 away from the cylinder 1. In this structure, the exhaust port 4 penetrates the second cavity 7 but is isolated from it, so that the exhaust port 4 is surrounded by the second cavity 7, reducing the heat loss of the gas in the exhaust port 4.

[0043] In some implementations, such as Figure 5 and 6As shown, the hollow cavity includes a first cavity 6 formed inside the cylinder body 101 and a second cavity 7 disposed inside the upper flange 2, with an isolation plate 8 formed between the first cavity 6 and the second cavity 7. In this structure, the second cavity 7 can be used as a silencing cavity. The gas discharged from the working chamber 102 is reduced in noise by the silencing effect of the second cavity 7, which is beneficial for noise control. The first cavity 6 and the second cavity 7 are separated from each other. At this time, the first cavity 6 formed inside the cylinder body 101 is located on the radial periphery of the working chamber 102, and the second cavity 7 formed inside the upper flange 2 is located at one end of the axial direction of the working chamber 102. The first cavity 6 has a larger contact area with the working chamber 102, and heat transfer can be reduced by means of the first cavity 6, while still achieving a better heat insulation effect.

[0044] Based on the above embodiment, the exhaust port 4 includes a first exhaust port and a second exhaust port. The first exhaust port connects the working chamber 102 and the second chamber 7, the inlet of the second exhaust port connects to the second chamber 7, and the outlet of the second exhaust port is located on the end face of the upper flange 2 away from the cylinder 1. The compressed gas in the working chamber 102 enters the second chamber 7 through the first exhaust port, and after noise reduction in the second chamber 7, it is discharged through the second exhaust port, thus forming a complete exhaust path and achieving noise reduction while completing exhaust. Preferably, the first exhaust port and the second exhaust port are offset in the axial direction. This arrangement ensures that the exhaust gas can flow in the direction perpendicular to the axial direction in the second chamber 7, so that the airflow obtains a longer flow path in the second chamber 7, improving the noise reduction effect.

[0045] It should be noted that the principle of noise reduction achieved by the second cavity 7 includes, but is not limited to, reactive noise reduction and resistive noise reduction. For example, the second cavity 7 can be designed with an irregular shape. After the compressed high-pressure refrigerant is discharged from the first exhaust port into the second cavity 7, the sound waves generated by the exhaust will be reflected, interfered and superimposed within the irregular cavity, and then discharged through the second exhaust port, thus completing noise reduction. Alternatively, a structure or material with sound-absorbing properties can be added to the second cavity 7. When the airflow passes through the second cavity 7, noise at a specific frequency will be eliminated by the sound-absorbing material, thereby achieving the purpose of noise reduction.

[0046] More preferably, such as Figure 6 As shown, several axially extending muffler columns 9 are formed inside the second cavity 7. The muffler columns 9 are irregular column structures with variable cross-sections, and their surfaces are several irregular walls. When exhaust flows inside the second cavity 7, the airflow passes between the muffler columns 9. The muffler columns 9 will divide the airflow, forming several small vortices with faster noise attenuation, thereby achieving a noise reduction effect. Furthermore, the noise waves generated by the exhaust can be reflected between different muffler columns 9 by the walls of the muffler columns 9, so that sound waves with similar amplitudes but opposite phases cancel each other out, thus achieving a noise reduction effect.

[0047] In some implementations, such as Figure 4-6 As shown, the second cavity 7 has a central region corresponding to the working cavity 102 and a peripheral region facing the cylinder body 101. The peripheral region surrounds the central region, and its axial dimension is larger than that of the central region. The first exhaust port is opened on the wall between the central region of the second cavity 7 and the working cavity 102, and the second exhaust port is opened in the peripheral region of the second cavity 7. This makes the exhaust path working cavity 102 → first exhaust port → central region of the second cavity 7 → peripheral region of the second cavity 7 → second exhaust port. Because the axial dimension of the peripheral region is larger than that of the central region, a sudden change in volume is created in the airflow path, reducing the airflow speed and thus reducing the noise generated during airflow. Furthermore, the addition of new wall structures at the sudden change in volume increases the effect of continuous reflection, refraction, and mutual cancellation of sound waves, thereby further enhancing the noise reduction effect.

[0048] like Figure 7 As shown, this embodiment of the invention also provides a compressor pump body assembly, which includes the integrated structure provided in the foregoing embodiments of the invention. The pump body assembly further includes a lower flange 10, a crankshaft 11, rollers 12, and vanes. A first bushing 13 is provided on the upper flange 2 of the integrated structure. The lower flange 10 is connected to the end of the cylinder 1 opposite to the upper flange 2. A second bushing 14 is provided on the lower flange 10. The crankshaft 11 passes through the first bushing 13, the working chamber 102, and the second bushing 14 in sequence.

[0049] Specifically, the working chamber 102 is equipped with a rolling roller 12, which is sleeved on the crankshaft 11. The roller 12 rolls along the inner wall of the working chamber 102 under the drive of the crankshaft 11. One end of the sliding vane extends into the sliding vane groove 5 and is connected to a spring. Under the action of the spring, the other end of the sliding vane always remains in contact with the roller 12, so that the sliding vane and the roller 12 cooperate to divide the working chamber 102 into an intake chamber and a compression chamber. The intake chamber is connected to the intake port 3, and the compression chamber is connected to the exhaust port 4. As the crankshaft 11 drives the roller 12 to roll, the volume of the intake chamber gradually increases while the volume of the compression chamber decreases, so that the intake chamber draws in refrigerant from the intake port 3, while the compression chamber discharges the compressed refrigerant from the exhaust port 4.

[0050] The compressor pump body assembly provided in this embodiment of the invention adopts the integrated structure in the aforementioned embodiment, and it also has the corresponding technical effects of the integrated structure. That is, by integrating the upper flange 2 and the cylinder 1 into a single design, the original bolt assembly method can be eliminated, thereby avoiding the assembly deformation during the assembly process of the upper flange 2 and the cylinder 1 in related technologies. Furthermore, the integrated structure adopts a hollow design to form a hollow cavity, which achieves lightweight structure while having excellent heat insulation effect, reducing wall heat transfer and other phenomena, reducing heat loss, and improving the overall performance of the compressor.

[0051] In some embodiments, the integrated structure is connected to the lower flange 10 by laser welding. Due to the assembly requirements of structures such as crankshaft 11, roller 12, and vanes, the upper flange 2, cylinder 1, and lower flange 10 cannot be designed as a single-piece structure. Therefore, the integrated structure and the lower flange 10 need to be assembled together. Laser welding is used between the integrated structure and the lower flange 10 instead of traditional welding, which can reduce the deformation of the pump body components during assembly and improve machining accuracy.

[0052] In the compressor pump body assembly provided in this application embodiment, the integrated structure retains the original functions of cylinder 1 and upper flange 2, and still has suction port 3, exhaust port 4, oblique cut, vane groove 5 and other suction and exhaust structures. In order to simplify the complex assembly relationship, exhaust valve seat, exhaust chamber and the like can be set on lower flange 10, so that the assembly effect of the integrated structure is better.

[0053] To verify the application effect of the compressor pump assembly in this embodiment of the invention, an existing rotary compressor was modified by replacing its pump assembly with the compressor pump assembly provided in this embodiment. Specifically, the compressor pump assembly includes an integrated structure, a lower flange 10, a crankshaft 11, rollers 12, and vanes. The integrated structure includes a cylinder 1, an upper flange 2, an intake port 3, an exhaust port 4, and a vane groove 5. The cylinder 1 includes a cylinder body 101 and a working chamber 102. The intake port 3 extends radially from the outer wall of the cylinder body 101 to the working chamber 102. The vane groove 5 is formed on the cylinder body 101. The upper flange 2 is located at one axial end of the cylinder 1. The cylinder body 101 and the upper flange 2 are integrally formed. A hollow cavity is formed inside the cylinder body 101 and the upper flange 2. The outlet of the exhaust port 4 is located on the end face of the upper flange 2 away from the cylinder 1. The hollow cavity includes a first cavity 6 formed inside the cylinder body 101 and a cavity 6 located inside the upper flange 2. The second cavity 7 of the cylinder is separated from the first cavity 6 by an isolation plate 8. The exhaust port 4 includes a first exhaust port and a second exhaust port. The first exhaust port connects the working cavity 102 and the second cavity 7. The inlet of the second exhaust port connects to the second cavity 7. The outlet of the second exhaust port is located on the end face of the upper flange 2 away from the cylinder 1. The first exhaust port and the second exhaust port are axially offset. Several axially extending muffler columns 9 are formed in the second cavity 7. The upper flange 2 of the integrated structure is provided with a first bushing 13. The lower flange 10 is connected to the end of the cylinder 1 away from the upper flange 2. The lower flange 10 is provided with a second bushing 14. The crankshaft 11 passes through the first bushing 13, the working cavity 102 and the second bushing 14 in sequence. The working cavity 102 is provided with a rolling roller 12. The roller 12 is sleeved on the crankshaft 11. The roller 12 rolls along the inner wall of the working cavity 102 under the drive of the crankshaft 11. The integrated structure is connected to the lower flange 10 by laser welding.

[0054] The study examined the capacity loss caused by wall heating, capacity loss caused by end-face leakage, and power loss caused by heat transfer before and after the modification, as well as the cooling capacity and input power before and after the modification. The results are compared as follows: Figure 8 and 9 As shown, through comparative verification, it was found that the most prominent losses in the cooling capacity of the original compressor before the modification were the large losses from wall heating and end face leakage, and the large losses in power were from heat transfer. After adopting the pump body assembly structure provided in this embodiment of the invention, the capacity and power loss of the modified compressor were significantly reduced, and the calculated COP improvement effect can reach 4.01%.

[0055] This invention also provides a compressor, which includes the compressor pump assembly provided in the foregoing embodiments of this invention.

[0056] As an alternative implementation of the compressor, such as Figure 10As shown, the compressor includes a housing 15, a compressor pump assembly, a distributor 16, and a motor 17. The compressor pump assembly and motor 17 are both located within the space inside the housing 15. The distributor 16 is connected to the suction port 3 on the integrated structure of the compressor pump assembly via a suction pipe 18. The motor 17 drives the crankshaft 11 to rotate. The compressor provided in this embodiment of the invention, due to the adoption of the integrated structure in the aforementioned embodiments, also possesses the corresponding technical effects of an integrated structure. That is, by integrating the upper flange 2 and the cylinder 1, the original bolt assembly method can be eliminated, thereby avoiding assembly deformation during the assembly process of the upper flange 2 and cylinder 1 in related technologies. Furthermore, the integrated structure uses an internal hollow design to form a hollow cavity, achieving lightweight structure while providing excellent heat insulation, reducing wall heat transfer and other phenomena, minimizing heat loss, and improving the overall performance of the compressor.

[0057] However, the aforementioned compressor structure requires welding after connection via the suction pipe 18, resulting in a complex assembly process. Furthermore, welding generates slag, which, if it enters the compressor, can cause the pump body to seize, affecting the compressor's operational reliability. Moreover, existing compressor pump bodies typically employ an interference fit between the suction pipe 18 and the suction port 3, creating a leakage channel between them. Due to manufacturing and assembly issues, leaks may occur between the suction pipe 18 and the suction port 3, impacting the compressor's suction performance.

[0058] Based on this, such as Figure 11-13 As shown, this embodiment of the invention provides another type of compressor. The compressor provided in this application includes a housing 15, a compressor pump assembly, and a motor 17. The integrated structure in the compressor pump assembly is integrally connected to the housing 15, and the circumferential edge of the integrated structure in the compressor pump assembly is shared with the housing 15. The motor 17 is located in the space inside the housing 15 and is used to drive the crankshaft 11 to rotate. At this time, the opening of the suction port 3 is directly located on the surface of the housing 15. The integrated structure and the housing 15 can be integrally cast, and there is no gap between the suction port 3 and the housing 15. The refrigerant can directly return to the working chamber 102 through the suction port 3. There is no need to assemble the suction pipe 18 later, eliminating the step of assembling the suction pipe 18 with the suction port 3. There is no leakage at the assembly point of the suction pipe 18 and the suction port 3, which can effectively improve the suction effect of the compressor. Furthermore, there is no need to weld the suction pipe 18, which can reduce the assembly process and avoid the situation where welding slag generated during the welding process enters the compressor and causes the pump body to jam, thereby ensuring the reliability of the compressor operation.

[0059] In some embodiments, a power chamber 19 is formed in the area above the upper flange 2 within the housing 15. The power chamber 19 is used to install the motor 17. The first bushing 13 of the upper flange 2 is provided with a shaft hole communicating with the power chamber 19 and the working chamber 102, through which the crankshaft 11 passes. The integrated structure is integrally formed with the housing 15, which can fix the relative position of the motor 17 and the pump body assembly, improving the coaxiality of the motor 17 and the pump body assembly within the compressor.

[0060] In the above embodiment, the first cavity 6 within the cylinder body 101 and the second cavity 7 within the upper flange 2 are arranged around the working cavity 102, serving as a heat transfer isolation layer between the power cavity 19 and the working cavity 102, preventing mutual heat diffusion and improving the compressor's compression efficiency. Specifically, the first cavity 6 is arranged around the outer periphery of the working cavity 102, fully enclosing it, thereby reducing heat transfer between the power cavity 19 and the working cavity 102 through the housing 15. In scenarios where the second cavity 7 is not used as a noise reduction structure, it is directly disposed between the working cavity 102 and the power cavity 19, which can reduce heat transfer between them axially. Preferably, the first cavity 6 and / or the second cavity 7 can be kept under vacuum or filled with insulating material, both of which effectively isolate heat transfer.

[0061] In the above embodiment, the first cavity 6 is arranged around the suction port 3, which can reduce the transfer of heat to the suction port 3, thereby reducing the overheating of the refrigerant in the flow path within the suction port 3 and reducing the power consumption of compression.

[0062] In related technologies, the rotor of the motor 17 generates noise when rotating within the housing 15. This noise is transmitted outward through the housing 15, resulting in relatively high overall compressor noise. Therefore, in some embodiments, a third cavity 20 is provided within the housing 15, surrounding the power cavity 19. This forms a hollow interlayer around the power cavity 19, reducing the direct transmission of noise generated within the power cavity 19 outward through the housing 15, thereby lowering the overall compressor noise level. Furthermore, forming a hollow third cavity 20 around the power cavity 19 further reduces heat transfer from the power cavity 19 outward.

[0063] It should be noted that the third cavity 20 can be connected to the first cavity 6, and the third cavity 20 can also be set independently relative to the first cavity 6; the third cavity 20 can be enclosed within the housing 15, and the third cavity 20 can also maintain communication with the external space of the housing 15.

[0064] In some embodiments, an opening 21 communicating with the first cavity 6 and / or the third cavity 20 may be formed on the housing 15. The opening 21 is used to introduce external coolant. The opening 21 can guide the flowing coolant into the first cavity 6 and / or the third cavity 20, and the temperature of a local area inside the compressor can be adjusted as needed by introducing the flowing coolant into the first cavity 6 and / or the third cavity 20.

[0065] In some embodiments, the compressor also has a liquid distribution chamber 22 and a return pipe 23 communicating with the liquid distribution chamber 22. The top of the liquid distribution chamber 22 has an air inlet 24 communicating with the suction port 3. Specifically, the suction port 3 is connected to the intake pipe through a suction channel 25, which extends along the axial direction of the compressor. In this embodiment, the refrigerant enters the liquid distribution chamber 22 through the return pipe 23 and undergoes gas-liquid separation in the liquid distribution chamber 22. The gaseous refrigerant rises and enters the suction channel 25 through the air inlet 24, and then enters the suction port 3. The refrigerant oil sinks to the bottom of the liquid distribution chamber 22, preventing the refrigerant oil in the refrigerant from directly entering the working chamber 102 and affecting the pump assembly. By integrating the liquid distribution chamber 22 and the return pipe 23 into the housing 15, the assembly process is further simplified. Specifically, the compressor has an integrally formed liquid distributor 16 on the outside of the housing 15. The liquid distributor 16 has an arc-shaped structure, and a liquid distribution chamber 22 is formed between the liquid distributor 16 and the housing 15. The liquid distribution chamber 22 has the outer surface of the housing 15 as its inner wall surface.

[0066] In this application, the return pipe 23 and the suction channel 25 are formed inside the liquid distribution chamber 22. This allows the refrigerant to enter the liquid distributor 16 through the return pipe 23 to complete gas-liquid separation. The gaseous refrigerant then directly enters the suction channel 25 through the air inlet 24 and then enters the working chamber 102 through the suction port 3. The entire suction channel 25 and the suction port 3 are integrally formed, eliminating the need to assemble the suction pipe 18. This saves on assembly processes, ensures airtightness, and avoids the situation where welding slag during the assembly and welding of the suction pipe 18 affects the working chamber 102.

[0067] In some embodiments, the outer wall of the dispenser 16 further includes a fourth cavity 27 disposed around the dispensing chamber 22. The fourth cavity 27 may communicate with the first cavity, or the fourth cavity 27 may be disposed independently of the first cavity.

[0068] In some embodiments, a return oil hole is provided between the liquid distribution chamber 22 and the suction channel 25, allowing the refrigerant oil in the liquid distribution chamber 22 to return to the suction channel 25 through the return oil hole. After the refrigerant enters the liquid distribution chamber 22, the gaseous refrigerant flows upward and enters the working chamber 102 through the suction channel 25 and the suction hole 3. The deposited refrigerant oil returns to the working chamber 102 through the return oil hole, ensuring the lubrication effect on the compressor.

[0069] In some embodiments, the housing 15 also has a refrigerant oil channel 29 communicating with the power chamber 19. The refrigerant oil channel 29 extends axially, and the refrigerant oil carried to the power chamber 19 by the compressor can return to the oil sump at the bottom through the refrigerant oil channel 29. Multiple refrigerant oil channels can be evenly arranged circumferentially to ensure that the refrigerant oil entering the power chamber 19 can fully return to the oil sump. Specifically, the refrigerant oil channel 29 has a cross-section that is wide in the middle and tapered at both ends, and one side of the refrigerant oil channel 29 is flush with the inner wall of the power chamber 19, allowing the refrigerant oil in the power chamber 19 to enter the refrigerant oil channel 29 along the inner wall, ensuring a good flow guidance effect for the refrigerant oil.

[0070] Preferred, such as Figure 13 As shown, several openings can be made in the housing 15 so that the first cavity 6, the third cavity 20, and the fourth cavity 27 can be interconnected. Coolant or other media can be moved within these cavities according to the desired flow pattern using an external driving force. Figure 13 The flow proceeds sequentially in the direction indicated by the thick black arrow, meeting the usage requirements in certain scenarios.

[0071] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “” used herein may also indicate the inclusion of the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated, unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0072] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0073] The above are merely specific embodiments of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. An integrated structure for a compressor pump body assembly, characterized in that, The device includes a cylinder, an upper flange, an intake port, an exhaust port, and a vane groove. The cylinder includes a cylinder body and a working chamber. The intake port extends radially from the outer wall of the cylinder body to the working chamber. The vane groove is formed on the cylinder body. The upper flange is located at one end of the cylinder in the axial direction. The cylinder body and the upper flange are integrally formed. A hollow cavity is formed inside the cylinder body and the upper flange. The outlet of the exhaust port is located on the end face of the upper flange away from the cylinder. The hollow cavity includes a first cavity formed inside the cylinder body and a second cavity disposed inside the upper flange. A partition plate is formed between the first cavity and the second cavity. The exhaust port includes a first exhaust port and a second exhaust port. The first exhaust port connects the working chamber and the second cavity. The inlet of the second exhaust port connects to the second cavity. The outlet of the second exhaust port is opened on the end face of the upper flange away from the cylinder. A plurality of axially extending mufflers are formed in the second cavity. The second cavity has a central region corresponding to the working cavity and a peripheral region facing the cylinder body. The peripheral region surrounds the central region, and the axial dimension of the peripheral region is greater than the axial dimension of the central region. The first exhaust port is opened on the wall between the central region and the working cavity, and the opening position of the second exhaust port corresponds to the peripheral region.

2. The integrated structure according to claim 1, characterized in that, The first exhaust port and the second exhaust port are offset in the axial direction.

3. A compressor pump body assembly, characterized in that, include: The integrated structure as described in any one of claims 1-2, wherein a first bushing is provided on the upper flange; A lower flange is connected to the end of the cylinder that is away from the upper flange, and a second bushing is provided on the lower flange; The crankshaft passes through the first bushing, the working chamber, and the second bushing in sequence.

4. The compressor pump body assembly according to claim 3, characterized in that, The integrated structure is connected to the lower flange by laser welding.

5. A compressor, characterized in that, Includes the compressor pump assembly as described in claim 3 or 4.

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