Compressor system, air conditioner outdoor unit and heating and ventilation equipment

Abstract

The invention relates to the technical field of air conditioners, and discloses a compressor system, an air conditioner outdoor unit and heating and ventilation equipment.The compressor system comprises a shell, a compressor body, a first air return pipe, a second air return pipe and a filtering device, the compressor body is arranged in the shell, and an interval space is formed between the compressor body and the shell; the two ends of the first air return pipe communicate with the compressor body and the interval space correspondingly, the second air return pipe is connected to the shell and communicates with the interval space, and a gas-liquid mixed refrigerant enters the interval space through the second air return pipe and is subjected to gas-liquid separation. And the filtering device is used for filtering the gaseous refrigerant entering the compressor body after gas-liquid separation. According to the compressor, the filtering device is arranged in the first air return pipe, so that a gaseous refrigerant entering the compressor body can be filtered, the working operation of a compressor system is ensured, and the stability and the reliability of system operation are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a compressor system, an air conditioning outdoor unit and heating and ventilation equipment. Background Art

[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0003] In the related art, air conditioning systems are equipped with compressors to compress and circulate refrigerant. Since impurities such as welding slag are generated during the assembly of the refrigerant circulation loop, the impurities can easily enter the compressor and cause it to clog, thereby causing the compressor system to fail. Summary of the Invention

[0004] The present invention aims to at least solve the problem of impurities in the compressor system causing blockage and thus system failure. This object is achieved by the following technical solutions:

[0005] A first aspect of the present invention provides a compressor system, comprising:

[0006] case;

[0007] A compressor body is disposed in the shell, with a space between the compressor body and the shell;

[0008] a first air return pipe and a second air return pipe, wherein both ends of the first air return pipe are respectively connected to the compressor body and the partition space, and the second air return pipe is connected to the shell and is connected to the partition space, and the gas-liquid mixed refrigerant enters the partition space through the second air return pipe and undergoes gas-liquid separation;

[0009] The filter device is arranged in the first return air pipe, and is used to filter the gaseous refrigerant entering the compressor body after gas-liquid separation.

[0010] The compressor system of the present invention is achieved by arranging a compressor body in a shell, with a partition space between the shell and the compressor body, and the two ends of the first return air pipe are respectively connected to the compressor body and the partition space. The external gas-liquid mixed refrigerant enters the partition space through the second return air pipe and undergoes gas-liquid separation in the partition space. The separated gaseous refrigerant enters the compressor body through the first return air pipe. By arranging a filtering device in the first return air pipe, the filtering device can filter the refrigerant entering the compressor body through the first return air pipe, thereby preventing impurities such as welding slag in the pipeline from entering the tank body of the compressor and affecting the compressor body, thereby ensuring the working operation of the compressor system and improving the stability and reliability of the operation of the compressor system.

[0011] In addition, the compressor system according to the present invention may also have the following additional technical features:

[0012] In some embodiments of the present invention, the compressor body includes a tank body, a return air connector is provided on a side wall of the tank body, and the filtering device is provided at an end of the first return air pipe away from the return air connector.

[0013] In some embodiments of the present invention, the filter device includes a filter screen having an arc-shaped filter surface, and a filter cross-section of the arc-shaped filter surface is larger than a cross-section of the first air return pipe.

[0014] In some embodiments of the present invention, the filter device further includes a mounting bracket, the filter screen is disposed on the mounting bracket, and the filter screen is connected to the first air return pipe via the mounting bracket.

[0015] In some embodiments of the present invention, the mounting bracket is interference fit with the inner wall of the first air return pipe.

[0016] In some embodiments of the present invention, a limiting structure is provided in the first air return pipe, and the limiting structure includes a limiting protrusion, and the limiting protrusion is circumferentially provided on the inner wall of the first air return pipe.

[0017] In some embodiments of the present invention, there are two return air connectors, and the two return air connectors are spaced apart on the side wall of the tank body along the height direction of the tank body. The number of the first return air pipe is one, and one first return air pipe is connected to the two return air connectors respectively.

[0018] In some embodiments of the present invention, the number of the return air connectors is two, and the two return air connectors are spaced apart on the side wall of the tank along the height direction of the tank body. The number of the first return air pipes is two, and the two first return air pipes are connected to the two return air connectors in a one-to-one correspondence.

[0019] The filtering device is provided in each of the first air return pipes.

[0020] In some embodiments of the present invention, a copper sleeve is provided at one end of the first air return pipe away from the air return joint, and the copper sleeve is welded to the first air return pipe.

[0021] In some embodiments of the present invention, a return air port is provided on the top of the shell, one end of the second return air pipe extends from the return air port, the other end of the second return air pipe is located inside the shell, and is spaced apart from the end of the first return air pipe away from the return air joint.

[0022] In some embodiments of the present invention, the compressor system also includes an exhaust pipe, an exhaust port is provided on the top of the shell, the compressor body also includes a cover body covering the tank body, an exhaust joint is provided on the cover body, one end of the exhaust pipe is connected to the exhaust joint, and the other end of the exhaust pipe extends from the exhaust port.

[0023] A second aspect of the present invention provides an air-conditioning outdoor unit, comprising a compressor system as described in any one of the above items.

[0024] A third aspect of the present invention provides a HVAC device, comprising an air-conditioning indoor unit and an air-conditioning outdoor unit as described above, wherein the air-conditioning outdoor unit is connected to the air-conditioning indoor unit via a pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference numerals are used throughout the accompanying drawings to denote the same components. In the accompanying drawings:

[0026] Figure 1 Schematically shows a structural diagram of a compressor system according to an embodiment of the present invention;

[0027] Figure 2 Schematically shows a partial structural diagram of a compressor system according to an embodiment of the present invention Figure 1 ;

[0028] Figure 3 Schematically shows a cross-sectional view of a compressor system according to an embodiment of the present invention Figure 1 ;

[0029] Figure 4 Schematically shows a partial structural diagram of a compressor system according to an embodiment of the present invention Figure 2 ;

[0030] Figure 5 Schematically shows a cross-sectional view of a compressor system according to an embodiment of the present invention Figure 2 ;

[0031] Figure 6 Schematic diagram of the structure of a compressor system according to another embodiment of the present invention;

[0032] Figure 7 The structural diagram of the HVAC equipment according to the embodiment of the present invention is schematically shown.

[0033] The reference numerals are as follows:

[0034] 1000. HVAC equipment;

[0035] 100, air conditioner outdoor unit; 10, compressor system; 20, outdoor heat exchanger; 30, fan; 200, air conditioner indoor unit; 201, indoor heat exchanger;

[0036] 1. Shell; 11. First shell portion; 111. First segment; 112. Second segment; 113. Stage; 12. Second shell portion; 13. Exhaust port; 14. Air return port;

[0037] 21. Compressor body; 211. Tank body; 2111. Air return connector; 212. Cover; 2121. Exhaust connector; 22. Exhaust pipe; 23. First air return pipe; 231. Main pipe; 232. Branch pipe; 24. Second air return pipe; 241. First pipe section; 242. Second pipe section; 243. Transition pipe section; 25. Oil return capillary; 26. Muffler;

[0038] 3. Filter device; 31. Filter screen; 32. Mounting bracket;

[0039] 4. Copper sleeve;

[0040] 5. Vibration damping device; 51. Vibration damping plate; 511. Avoidance opening; 52. Elastic vibration damping member;

[0041] 6. Vibration damping assembly; 61. Mounting piece; 62. Vibration damping pad;

[0042] 7. Four-way valve; 71. First port; 72. Second port; 73. Third port; 74. Fourth port;

[0043] 8. Space between. DETAILED DESCRIPTION

[0044] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0045] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain" and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0046] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0047] For ease of description, spatially relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," and the like. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped over, an element described as "below" or "beneath" another element or feature would then be oriented "above" or "above" the other element or feature. Thus, the example term "below" can encompass both above and below orientations.

[0048] In the related art, air conditioning systems are equipped with compressors to compress and circulate refrigerant. Since impurities such as welding slag are generated during the assembly of the refrigerant circulation loop, the impurities can easily enter the compressor and cause it to clog, thereby causing the compressor system to fail.

[0049] In view of this, the present embodiment provides a compressor system 10, which aims to solve the above technical problems by setting a filter device 3 in the first return air pipe 23. The filter device 3 filters the refrigerant entering the compressor body 21 through the first return air pipe 23 to prevent impurities from entering the compressor.

[0050] like Figures 1 to 6 As shown, according to an embodiment of the present invention, a compressor system 10 is proposed. The compressor system 10 includes a housing 1, a compressor body 21, an exhaust pipe 22, a first return air pipe 23, a second return air pipe 24 and a filter device 3.

[0051] The housing 1 has a top and a bottom relative to each other along its height. The housing 1 may include a cylindrical body, a top shell, and a bottom shell, which are separately arranged. The top shell is mounted on the top of the cylindrical body, and the bottom shell is mounted on the bottom of the cylindrical body. The cylindrical body and the top shell may also be an integral structure, with the top of the cylindrical body being the top of the housing 1. The cylindrical body and the bottom shell may also be an integral structure, with the bottom of the cylindrical body being the bottom of the housing 1.

[0052] The compressor body 21 is disposed within the housing 1, with a partition space 8 between the compressor body 21 and the housing 1. A return air connector 2111 is disposed on the side wall of the compressor body 21. One end of a first return air pipe 23 is connected to the return air connector 2111, and the other end is connected to the partition space 8. A second return air pipe 24 is connected to the housing 1 and is connected to the partition space 8. The gas-liquid mixed refrigerant enters the partition space 8 through the second return air pipe 24 and undergoes gas-liquid separation. The return air connector 2111 and the first return air pipe 23 are both made of stainless steel, which has the advantages of high strength, high temperature resistance, and corrosion resistance. The first return air pipe 23 is welded to the return air connector 2111. An exhaust port 13 is disposed at the top of the housing 1, and an exhaust connector 2121 is disposed on the compressor body 21. One end of the exhaust pipe 22 is connected to the exhaust connector 2121, and the other end of the exhaust pipe 22 extends from the exhaust port 13.

[0053] The filter device 3 is arranged on the return air side of the gaseous refrigerant of the compressor body 21. That is, the filter device 3 can be arranged in the first return air pipe 23 or at the return air joint 2111. The filter device 3 is used to filter the gaseous refrigerant entering the compressor body 21 after gas-liquid separation, thereby preventing the compressor body 21 from being damaged by impurities mixed with the refrigerant and ensuring the normal operation of the compressor body 21. At the same time, the filter device 3 is detachably arranged to facilitate the installation and removal of the filter device 3 and improve the efficiency of disassembly and assembly.

[0054] The compressor system 10 of the present invention is equipped with a filter device 3 in the first return air pipe 23. The filter device 3 can filter the refrigerant entering the compressor body 21 through the first return air pipe 23, thereby preventing impurities such as welding slag in the pipe from entering the compressor body 21 and affecting the compressor body 21, thereby ensuring the normal operation of the compressor system 10 and improving the stability and reliability of the operation of the compressor system 10.

[0055] In some embodiments of the present invention, the compressor body 21 includes a tank body 211 , a return air connector 2111 is provided on the side wall of the tank body 211 , and the filter device 3 is provided at one end of the first return air pipe 23 away from the return air connector 2111 .

[0056] Specifically, the filter device 3 is arranged at the inlet of the first return air pipe 23. The filter device 3 arranged at the inlet is easy to install and disassemble, and is easy to integrate into the system pipeline. It effectively intercepts solid particles, impurities, etc. in the fluid medium, preventing these impurities from entering the compressor body 21 through the first return air pipe 23, ensuring the normal operation of the compressor. At the same time, it can effectively reduce the impact and wear of impurities on system equipment, thereby extending the service life of the equipment. In addition, the filter device 3 is arranged at the inlet, which can concentrate the interception of impurities and facilitate regular cleaning and maintenance. Compared with the filter device 3 arranged in the middle or at the outlet of the pipeline, the filter at the inlet is easier to operate and replace, thereby reducing the overall maintenance cost of the system.

[0057] In some embodiments of the present invention, the filter device 3 includes a filter screen 31 . The filter screen 31 has an arc-shaped filter surface. The filter cross section of the arc-shaped filter surface is larger than the cross section of the first air return pipe 23 .

[0058] Specifically, the filter screen 31 is made of stainless steel and is produced by stamping. The filter screen 31 includes a connected mounting section and a filtering section. The mounting section is a cylindrical structure with upper and lower openings. The filtering section is arranged at the bottom of the mounting section along the direction of the fluid flow. The filtering section is a hemispherical structure. The filtering section has a curved filtering surface. The filtering cross-section of the filtering surface is larger than the cross-section of the first return air pipe 23. The filtering cross-section is the effective area through which the fluid can actually pass. The curved filtering cross-section can increase the filtering surface area, thereby improving the filtering efficiency. Even if some mesh holes are blocked, the larger filtering area can ensure that the filtering effect is not significantly affected. At the same time, it can improve the passing efficiency of the refrigerant fluid, reduce the retention of the refrigerant fluid on the surface of the filter screen 31, and reduce the risk of clogging. The mounting bracket 32 is welded to the end of the mounting section away from the filtering section. The filter screen 31 is detachably mounted on the inner wall of the first return air pipe 23 via the mounting bracket 32. The mesh size of the filter screen 31 is 50-100 mesh, and the mesh size of the filter screen 31 can be selected according to actual needs.

[0059] In some embodiments of the present invention, the filter device 3 further includes a mounting bracket 32, on which the filter screen 31 is mounted. The mounting bracket 32 is detachably mounted within the first air return pipe 23. The mounting bracket 32 is made of stainless steel and is connected to the filter screen 31 by stamping. By mounting the filter screen 31 on the mounting bracket 32 and detachably mounting the mounting bracket 32 within the first air return pipe 23, the filter device 3 can be easily cleaned, maintained, or replaced regularly.

[0060] In some embodiments of the present invention, the filter 31 is interference fit with the inner wall of the first return air pipe 23 through the mounting bracket 32. The interference fit does not require additional fasteners (such as bolts, clamps, etc.). The installation can be completed by simply pressing the mounting bracket 32 into the first return air pipe 23. The operation is simple and quick. By making the mounting bracket 32 fit tightly with the inner wall of the return air pipe, it is ensured that the filter 31 will not loosen or shift during operation, and can effectively prevent the filter 31 from being displaced due to vibration or fluid impact, thereby ensuring the stability of the filtering effect. In addition, the interference fit can effectively reduce the gap between the mounting bracket 32 and the inner wall of the return air pipe, thereby improving the sealing performance, preventing unfiltered gas from bypassing the filter 31 and directly entering the downstream system, and ensuring the filtering effect of the filter 31.

[0061] In some embodiments of the present invention, a limiting structure (not shown) is provided in the first air return pipe 23 . The limiting structure includes a limiting protrusion, which is circumferentially provided on the inner wall of the first air return pipe 23 .

[0062] Specifically, a limiting protrusion is arranged along the circumference of the inner wall of the first return air pipe 23, forming an annular protrusion structure that can effectively limit the axial and radial movement of the filter device 3. When the filter screen 31 is installed, the limiting protrusion can clamp the edge of the filter screen 31 or the mounting bracket 32 to prevent them from shifting or falling due to fluid impact or vibration. In addition, the limiting protrusion can also serve as a positioning device for the installation of the filter device 3. During the installation process, the filter screen 31 or the mounting bracket 32 only needs to contact the limiting protrusion to quickly position and fix it, which is simple and quick to operate.

[0063] In other embodiments, a plurality of limiting protrusions may be provided, and the plurality of limiting protrusions are circumferentially spaced apart along the inner wall of the first air return pipe 23 .

[0064] In some embodiments of the present invention, a copper sleeve 4 is provided at one end of the first return air pipe 23 away from the return air connector 2111, and the copper sleeve 4 is welded to the first return air pipe 23. Manual welding is generally used to connect the first return air pipe 23 to the system pipeline. During manual welding, to ensure welding quality, pipes of the same material are usually welded. However, since the system pipeline is usually a copper pipe and the first return air pipe 23 is a stainless steel pipe, the copper sleeve 4 is provided at the end of the first return air pipe 23 away from the return air connector 2111 to facilitate welding of the first return air pipe 23 to the system pipeline.

[0065] It should be noted that the connection between the first return air pipe 23 and the copper sleeve 4 is achieved by furnace welding. The first return air pipe 23 and the copper sleeve 4 are placed in a dedicated heating furnace, and the high temperature environment in the furnace is used to melt the welding material (such as solder, solder paste, etc.), thereby achieving a connection between the two. The use of furnace welding can ensure the firmness of the welding between the first return air pipe 23 and the copper sleeve 4, and the welding quality is high.

[0066] In other embodiments, if the system pipeline is a stainless steel pipe, or the first air return pipe 23 is a copper pipe, the copper sleeve 4 may not be provided, and the first air return pipe 23 may be directly welded to the system pipeline.

[0067] In some embodiments of the present invention, there are two return air connectors 2111, and one first return air pipe 23. The two return air connectors 2111 are spaced apart on the side wall of the tank body 211 along the height direction of the tank body 211, and the first return air pipe 23 is connected to the two return air connectors 2111 respectively.

[0068] Specifically, the first air return pipe 23 is F-shaped and includes a main line 231 and two branch lines 232. The two branch lines 232 are connected to the two air return connectors 2111 in a one-to-one manner. The two branch lines 232 are parallel to each other and perpendicular to the side wall of the tank body 211. Both branch lines 232 are connected to the main line 231. By providing two branch lines 232, the low-temperature gaseous refrigerant sucked in from the first air return pipe can enter the two compression chambers in the compressor body 21 simultaneously through the two air return connectors 2111. The two compression chambers alternately compress the gaseous refrigerant, thereby improving the energy efficiency of the compressor body 21.

[0069] Figure 6 FIG. 1 is a schematic structural diagram of a compressor system according to another embodiment of the present invention. Figure 6As shown, there are two return air connectors 2111, spaced apart on the sidewall of the tank body 211 along the height direction of the tank body 211. There are two first return air pipes 23, each connected to the two return air connectors 2111 in a one-to-one correspondence. Each first return air pipe 23 is provided with a filter device. The other ends of the two first return air pipes 23 extend parallel to each other and toward the top of the partition space 8. The two compression chambers of the compressor body 21 alternately and independently draw air from the corresponding first return air pipes 23 to perform compression work, achieving continuous compression operation.

[0070] In some embodiments of the present invention, a return air port 14 is provided at the top of the shell 1, one end of the second return air pipe 24 extends from the return air port 14, and the other end of the second return air pipe 24 is located inside the shell 1 and is spaced apart from the end of the first return air pipe 23 away from the return air joint 2111.

[0071] By arranging the compressor body 21 in the shell 1, and arranging the first return air pipe 23 and the second return air pipe 24 separately and spaced apart from each other, the inertia force and inertia moment of the high-speed rotation of the compressor body 21 during operation cause the vibration of the compressor body 21, and the vibration is transmitted to the first return air pipe 23, so that the vibration between the compressor body 21 and the first return air pipe 23 gradually dissipates and attenuates in the shell 1, and will not be transmitted to the second return air pipe 24 connected to the shell 1. At the same time, the shell 1 covering the outside of the compressor body 21 will also shield the noise generated by the compressor body 21 and the first return air pipe 23 during operation, thereby reducing low-frequency vibration and noise and improving the user's hearing experience.

[0072] Furthermore, the end of the second air return pipe 24 located inside the shell 1 is staggered with the end of the first air return pipe 23 away from the air return connector 2111. Since the low-temperature gas-liquid mixed refrigerant entering the shell 1 from the second air return pipe 24 contains liquid refrigerant, the end of the first air return pipe 23 away from the air return connector 2111 is the air return end. The end of the second air return pipe 24 located inside the shell 1 is staggered with the air return end of the first air return pipe 23 rather than facing each other. This can prevent the liquid refrigerant from entering the first air return pipe 23 from the air return end under the action of its own gravity, thereby reducing the possibility of liquid hammer.

[0073] The second return air pipe 24 can be set as a straight pipe, one end of the straight pipe extends from the return air port 14 of the shell 1, and the other end of the straight pipe is located in the shell 1 and is staggered with the return air end of the first return air pipe 23. The straight pipe has a simple structure and is easy to shape. At the same time, the straight pipe has a small resistance, which can reduce the pressure loss of the air flow in the pipeline and improve the operating efficiency of the system. The second return air pipe 24 can also be set as a curved pipe, one end of the curved pipe extends from the return air port 14 of the shell 1, and the other end of the curved pipe is located in the shell 1 and is staggered with the return air end of the first return air pipe 23. Compared with the straight pipe, the curved pipe can be adjusted according to the spatial layout inside the compressor to better adapt to the compact design. At the same time, it can buffer the vibration and impact of the gas-liquid mixed refrigerant when it enters the shell 1, further reducing vibration noise.

[0074] In this embodiment, the second return air pipe 24 includes a first pipe section 241, a second pipe section 242, and a transition pipe section 243 connected between the first pipe section 241 and the second pipe section 242. The first pipe section 241 extends from the return air port 14, and the second pipe section 242 and the transition pipe section 243 are disposed within the housing 1. The axis of the first pipe section 241 and the axis of the second pipe section 242 are perpendicular to each other, and the axis of the second pipe section 242 is perpendicular to the side wall of the tank body 211. The transition pipe section 243 is an arc-shaped pipe. By arranging the axis of the second pipe section 242 perpendicular to the side wall of the tank body 211, the low-temperature gas-liquid mixed refrigerant enters from the first pipe section 241, passes through the transition pipe section 243, and then exits from the second pipe section 242. The outlet of the second pipe section 242 faces the side wall, and the exiting refrigerant hits the side wall, thereby improving the gas-liquid separation effect. The density of the separated gaseous refrigerant is less than that of the liquid refrigerant. The liquid refrigerant is placed at the bottom of the shell 1, while the gaseous refrigerant is retained at the top of the partition space 8. The gaseous refrigerant is sucked into the compressor body 21 through the negative pressure of the first return air pipe 23 for compression and work, generating high-temperature and high-pressure gaseous refrigerant. The high-temperature and high-pressure gaseous refrigerant is discharged from the exhaust port 13 through the exhaust pipe 22 to the circulation pipeline outside the shell 1 for subsequent cooling or heating cycles.

[0075] In some embodiments of the present invention, the compressor system 10 further includes a vibration damping device 5 , which is disposed between the compressor body 21 and the shell 1 and located at one end of the tank body 211 close to the cover body 212 or in the middle of the tank body 211 .

[0076] Specifically, the shell 1 includes a first shell portion 11 and a second shell portion 12, which are connected to each other along the height direction of the shell 1. The shell 1 as a whole is a cylindrical structure. The first shell portion 11 includes a first segment 111, a second segment 112 and a platform portion 113 connected between the first segment 111 and the second segment 112. The diameter of the first segment 111 is larger than the diameter of the second segment 112. The platform portion 113 is located at the upper part of the shell 1 or the middle part of the shell 1. The diameter of the second shell portion 12 is the same as the diameter of the second segment 112.

[0077] The vibration damping device 5 includes a vibration damping plate 51 and multiple elastic dampers 52. The vibration damping plate 51 has an escape opening 511 for clearing the first air return pipe 23. The multiple elastic dampers 52 are spaced apart along the extension direction of the vibration damping plate 51 and are positioned between the vibration damping plate 51 and the stage 113. The elastic dampers 52 may be rubber pads or springs. When vibration is transmitted to the vibration damping device 5, the elastic dampers 52 undergo elastic deformation (such as compression, stretching, or bending). This deformation absorbs vibration energy, thereby reducing vibration amplitude and improving system stability and reliability.

[0078] In some embodiments, an oil pool is provided on the inner side of the bottom of the shell 1, and the compressor system 10 further includes an oil return capillary 25, one end of the oil return capillary 25 is connected to the first return air pipe 23, and the other end of the oil return capillary 25 extends into the oil pool.

[0079] Specifically, the oil pool is located on the inner side of the bottom of the compressor housing 1 and is used to store lubricating oil. The lubricating oil plays a role in lubrication, cooling and sealing during the operation of the compressor. The oil return capillary 25 connects the oil pool and the first return air pipe 23, and can guide the lubricating oil in the oil pool back to the suction line of the compressor. By setting the oil return capillary 25, due to the low pressure in the first return air pipe 23, the lubricating oil will enter the first return air pipe 23 through the oil return capillary 25 under the action of the pressure difference. The lubricating oil can be brought back to the interior of the compressor body 21 along with the return air, realizing the recycling of the oil and ensuring that the compressor body 21 always has sufficient lubricating oil supply during operation, avoiding mechanical failures caused by lack of oil.

[0080] In some embodiments, a muffler 26 is further provided on the cover body 212. The muffler 26 can effectively reduce the noise generated by vibration during the operation of the compressor body 21, further reduce the system noise, and improve the operating efficiency of the compressor and extend its service life.

[0081] A second aspect of the present invention provides an air-conditioning outdoor unit 100 , comprising a chassis and the aforementioned compressor system 10 , wherein the compressor system 10 is mounted on the chassis.

[0082] In this embodiment, multiple vibration damping assemblies 6 are installed between the casing 1 and the chassis of the compressor system 10. Each vibration damping assembly 6 includes a mounting member 61 and a vibration damping pad 62. The mounting member 61 is mounted on the bottom of the casing 1 or on a sidewall near the bottom. The mounting member 61 can be a metal bracket, bolt, nut, etc. The vibration damping pad 62 can be made of rubber, springs, airbags, or other elastic materials to absorb and dissipate vibration energy. The multiple vibration damping assemblies 6 are evenly spaced between the casing 1 and the base. During installation, ensure that the vibration damping assemblies 6 are evenly stressed to avoid uneven stress or deformation of the vibration damping pad 62 due to improper installation.

[0083] The third aspect of the present invention provides a HVAC device 1000, such as Figure 7 As shown, the HVAC equipment 1000 includes an air-conditioning indoor unit 200 and the above-mentioned air-conditioning outdoor unit 100. The air-conditioning outdoor unit 100 also includes a chassis, an outdoor heat exchanger 20, a four-way valve 7, a fan 30 and a circulation loop, etc. An indoor heat exchanger 201 is provided in the air-conditioning indoor unit 200. The four-way valve 7 includes a first interface 71, a second interface 72, a third interface 73 and a fourth interface 74. The first interface 71 is connected to the exhaust pipe 22 of the compressor body 21, the second interface 72 is connected to the outdoor heat exchanger 20, the third interface 73 is connected to the second return air pipe 24 of the compressor body 21, and the fourth interface 74 is connected to the indoor heat exchanger 201. The four-way valve 7 is used to control the flow path of the refrigerant of the HVAC equipment 1000.

[0084] The HVAC equipment 1000 has a cooling mode and a cooling mode. In the heating mode, the first interface 71 is connected to the fourth interface 74, and the second interface 72 is connected to the third interface 73. The exhaust port 13 of the compressor body 21 is connected to the indoor heat exchanger 201, and the return air port 14 of the compressor body 21 is connected to the outdoor heat exchanger 20. The indoor heat exchanger 201 is connected to the outdoor heat exchanger 20, thereby forming a refrigerant heating circuit. In the heating mode, the high-temperature refrigerant flowing out of the compressor body 21 flows along the refrigerant pipe to the indoor heat exchanger 201. The refrigerant flowing through the indoor heat exchanger 201 exchanges heat with the indoor environment to achieve heating of the indoor environment; after heating, the low-temperature refrigerant flows to the outdoor heat exchanger 20, and then flows to the return air port 14 of the compressor body 21 through the outdoor heat exchanger 20.

[0085] In the cooling mode, the first interface 71 is connected to the second interface 72, and the third interface 73 is connected to the fourth interface 74, the exhaust port 13 of the compressor body 21 is connected to the outdoor heat exchanger 20, the return air port 14 of the compressor body 21 is connected to the indoor heat exchanger 201, and the indoor heat exchanger 201 is connected to the outdoor heat exchanger 20, thereby forming a cooling return flow of the refrigerant; the high-temperature refrigerant flowing out of the compressor body 21 flows along the refrigerant pipe to the outdoor heat exchanger 20, and the refrigerant flowing through the outdoor heat exchanger 20 is cooled and continues to flow to the indoor heat exchanger 201 to exchange heat with the indoor environment to achieve cooling of the indoor environment; after the cooling is completed, the refrigerant finally flows to the return air port 14 of the compressor body 21.

[0086] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A compressor system, characterized in that: include: case; A compressor body is disposed in the shell, with a space between the compressor body and the shell; a first air return pipe and a second air return pipe, wherein both ends of the first air return pipe are respectively connected to the compressor body and the partition space, and the second air return pipe is connected to the shell and is connected to the partition space, and the gas-liquid mixed refrigerant enters the partition space through the second air return pipe and undergoes gas-liquid separation; The filter device is arranged in the first return air pipe, and is used to filter the gaseous refrigerant entering the compressor body after gas-liquid separation.

2. The compressor system according to claim 1, wherein The compressor body includes a tank body, a side wall of the tank body is provided with an air return joint, and the filtering device is provided at one end of the first air return pipe away from the air return joint.

3. The compressor system according to claim 1, wherein The filter device includes a filter screen having an arc-shaped filter surface, and a filter cross section of the arc-shaped filter surface is larger than a cross section of the first air return pipe.

4. The compressor system according to claim 3, wherein: The filter device further includes a mounting bracket, the filter screen is arranged on the mounting bracket, and the filter screen is connected to the first air return pipe through the mounting bracket.

5. The compressor system according to claim 4, characterized in that The mounting bracket is interference-fitted with the inner wall of the first air return pipe.

6. The compressor system according to claim 1, wherein: A limiting structure is provided in the first air return pipe. The limiting structure includes a limiting protrusion. The limiting protrusion is circumferentially provided on the inner wall of the first air return pipe.

7. The compressor system according to claim 2, wherein: There are two return air connectors, which are spaced apart on the side wall of the tank along the height direction of the tank. There is one first return air pipe, which is connected to the two return air connectors respectively.

8. The compressor system according to claim 2, wherein: There are two return air connectors, which are spaced apart on the side wall of the tank along the height direction of the tank body. There are two first return air pipes, which are connected to the two return air connectors in a one-to-one correspondence. The filtering device is provided in each of the first air return pipes.

9. The compressor system according to claim 2, wherein: A copper sleeve is provided at one end of the first air return pipe away from the air return joint, and the copper sleeve is welded to the first air return pipe.

10. The compressor system according to any one of claims 1 to 9, characterized in that An air return port is provided on the top of the shell, one end of the second air return pipe extends from the air return port, the other end of the second air return pipe is located in the shell and is spaced apart from the end of the first air return pipe away from the air return joint.

11. The compressor system according to claim 2, wherein: The compressor system also includes an exhaust pipe, an exhaust port is provided on the top of the shell, and the compressor body also includes a cover body covering the tank body, an exhaust joint is provided on the cover body, one end of the exhaust pipe is connected to the exhaust joint, and the other end of the exhaust pipe extends from the exhaust port.

12. An air conditioner outdoor unit, characterized in that: A compressor system comprising the compressor system according to any one of claims 1 to 11.

13. A HVAC equipment, characterized in that: It comprises an air-conditioning indoor unit and an air-conditioning outdoor unit as claimed in claim 12, wherein the air-conditioning outdoor unit is connected to the air-conditioning indoor unit through a pipeline.

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