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 and a second air return pipe, an air return opening is formed in the top of the shell, the compressor body is arranged in the shell and comprises a tank, and an air return connector is arranged on the tank; one end of the first air return pipe communicates with the air return connector, the other end of the first air return pipe extends towards the top of the shell, one end of the second air return pipe extends out of the air return port, and the other end of the second air return pipe is located in the shell and staggered with the end, away from the air return connector, of the first air return pipe in the extending direction perpendicular to the first air return pipe. According to the compressor system, the air return end of the first air return pipe and the air return end of the second air return pipe are arranged in a staggered mode, so that gas-liquid mixed refrigerants which are not separated cannot enter the second air return pipe, the performance of the compressor is guaranteed, and the service life of the compressor system is prolonged.

Description

Technical Field

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

[0002] What is provided in this part is only background information related to the present disclosure, and it is not necessarily prior art.

[0003] During the operation of an air-conditioning compressor system, there may be a risk of liquid slugging in the compressor. Compressor liquid slugging means that liquid refrigerant enters the compressor. Since the compressibility of the liquid is poor, it will cause liquid slugging failure of the compressor. Liquid slugging will damage the compressor components and cause the compressor system to malfunction. Summary of the Invention

[0004] The purpose of the present invention is to at least solve the problem that the liquid slugging failure of the compressor system affects the normal operation of the system. This purpose is achieved through the following technical solutions:

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

[0006] A housing, with a suction port provided at the top of the housing;

[0007] A compressor body, arranged inside the housing, the compressor body includes a tank body, and a suction joint is provided on the side wall of the tank body;

[0008] A first suction pipe, one end of the first suction pipe is communicated with the suction joint, and the other end extends towards the top of the housing;

[0009] A second suction pipe, one end of the second suction pipe extends out of the suction port, and the other end is located inside the housing, and is arranged offset in a direction perpendicular to the extending direction of the first suction pipe from the end of the first suction pipe away from the suction joint.

[0010] When the compressor system of the present invention is working, since the gas-liquid mixed refrigerant in the refrigerant cycle is inhaled through the second suction pipe and gas-liquid separation is achieved inside the housing, and by arranging the suction ends of the first suction pipe and the second suction pipe offset from each other, the initially unseparated gas-liquid mixed refrigerant will not enter the second suction pipe, which can prevent liquid refrigerant from entering the compressor body through the second suction pipe, reduce the possibility of liquid slugging problems in the compressor system, ensure the stable operation of the system, guarantee the performance of the compressor, and extend the service life of the compressor system.

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

[0012] In some embodiments of the present invention, a first connection line is formed between one end of the second return air pipe located inside the housing and the central axis of the housing, and a second connection line is formed between the air return end of the first return air pipe and the central axis of the housing. The first connection line and the second connection line are arranged at an angle to each other.

[0013] In some embodiments of the present invention, one end of the second return air pipe located inside the housing is bent towards the inner side wall of the housing.

[0014] In some embodiments of the present invention, the second return air pipe includes a first branch pipe, a second branch pipe, and a transition pipe connected between the first branch pipe and the second branch pipe. The axis of the first branch pipe and the axis of the second branch pipe are arranged at an angle. The first branch pipe extends out from the air return port. The transition pipe and the second branch pipe are located inside the housing, and the transition pipe is an arc-shaped pipe.

[0015] In some embodiments of the present invention, the axis of the first branch pipe is perpendicular to the axis of the second branch pipe, and the plane where the axis of the second branch pipe is located is perpendicular to the wall surface of the inner side wall of the housing.

[0016] In some embodiments of the present invention, the compressor body further includes a cover covering the top of the tank body. One end of the first return air pipe far from the air return joint is higher than the cover or has the same height as the cover.

[0017] In some embodiments of the present invention, the number of the air return joints is two, and the two air return joints are arranged at intervals along the height direction of the tank body on the side wall of the tank body. The number of the first return air pipes is one, and one first return air pipe is respectively connected to the two air return joints.

[0018] In some embodiments of the present invention, a fixing member is further provided on the side surface of the compressor body. The fixing member is connected to one end of the first return air pipe far from the air return joint, and the fixing member is used to fix the first return air pipe.

[0019] In some embodiments of the present invention, the compressor system further includes an oil return capillary tube. An oil pool is provided at the bottom of the housing. One end of the oil return capillary tube is connected to the first return air pipe, and the other end of the oil return capillary tube extends into the oil pool.

[0020] In some embodiments of the present invention, the compressor system further includes an exhaust pipe. An exhaust joint is provided at the top of the tank body, and an exhaust port is provided at the top of the housing. One end of the exhaust pipe is connected to the exhaust joint, and the other end of the exhaust pipe extends out from the exhaust port.

[0021] In some embodiments of the present invention, the exhaust pipe includes a plurality of branch pipe segments connected in sequence, and an angle is formed between two adjacent branch pipe segments.

[0022] A second aspect of the present invention provides an outdoor air conditioner, including the compressor system as described in any one of the above.

[0023] A third aspect of the present invention provides a heating, ventilation and air conditioning (HVAC) device, including an indoor air conditioner and the outdoor air conditioner as described in any one of the above, and the outdoor air conditioner is connected to the indoor air conditioner through a pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered as a limitation of the present invention. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0025] Figure 1 Schematically shows the structural schematic of the compressor system according to an embodiment of the present invention Figure 1 ;

[0026] Figure 2 Schematically shows the structural schematic of the compressor system according to an embodiment of the present invention Figure 2 ;

[0027] Figure 3 is Figure 2 a cross-sectional view taken along line A-A in

[0028] Figure 4 Schematically shows a partial structural schematic of the compressor system according to an embodiment of the present invention Figure 1 ;

[0029] Figure 5 Schematically shows a partial structural schematic of the compressor system according to an embodiment of the present invention Figure 2 ;

[0030] Figure 6 Schematically shows the structural schematic of the HVAC device according to an embodiment of the present invention.

[0031] The reference numerals are as follows:

[0032] 1000, HVAC device;

[0033] 100, outdoor air conditioner; 10, compressor system; 20, outdoor heat exchanger; 30, fan; 200, indoor air conditioner; 201, indoor heat exchanger;

[0034] 1. Housing; 11. First sub-housing; 12. Second sub-housing; 13. Suction port; 14. Exhaust port;

[0035] 2. Compressor body; 21. Tank; 211. Suction joint; 22. Cover; 221. Exhaust joint; 23. Fixing member; 24. Oil return capillary tube; 25. Muffler;

[0036] 3. First suction pipe; 31. First pipe section; 32. Second pipe section;

[0037] 4. Second suction pipe; 41. First branch pipe; 42. Second branch pipe; 43. Transition pipe;

[0038] 5. Exhaust pipe; 51. Branch pipe section;

[0039] 6. Vibration damping device; 61. First vibration damping plate; 62. Second vibration damping plate; 63. Elastic vibration damping member;

[0040] 7. Vibration damping assembly; 71. Mounting member; 72. Vibration damping pad;

[0041] 8. Four-way valve; 81. First interface; 82. Second interface; 83. Third interface; 84. Fourth interface. Detailed implementation manners

[0042] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be completely conveyed to those skilled in the art.

[0043] It should be understood that the terms used herein are only for the purpose of describing specific exemplary embodiments and are not intended to be limiting. Unless otherwise clearly specified in the context, the singular forms "a", "an" and "the" as used herein may also include the plural forms. The terms "comprising", "including", "containing" and "having" are inclusive and thus specify the presence of the stated features, steps, operations, elements and / or components, but do not preclude 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 to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0044] Although terms such as first, second, third, etc. may 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 may be used only to distinguish one 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 may be referred to as the second element, component, region, layer, or section without departing from the teachings of the exemplary embodiments.

[0045] For ease of description, spatial relative relationship terms may be used in the text to describe the relationship of one element or feature shown in the figure to another element or feature. These relative relationship terms such as "inside", "outside", "inner side", "outer side", "below", "beneath", "above", "upper" and the like. Such spatial relative relationship terms are intended to include different orientations of the device in use or operation other than the orientations depicted in the figure. For example, if the device in the figure is flipped, an element described as "below" or "beneath" another element or feature will then be oriented "above" or "upper" another element or feature. Thus, the exemplary term "below" can include both upward and downward orientations.

[0046] During the operation of the air-conditioning compressor system, the compressor may have the risk of liquid slugging. Compressor liquid slugging means that liquid refrigerant enters the compressor. Due to the poor compressibility of the liquid state, it will cause compressor liquid slugging failure, damage the compressor components, and cause the compressor system to fail to operate normally.

[0047] In the related art, methods such as gas-liquid separators, suction pressure regulating devices, and electronic expansion valves are usually adopted to prevent liquid refrigerant from entering the compressor, thereby reducing the occurrence of liquid slugging. However, these methods all require adding additional equipment or complex control systems, increasing the complexity of the system and the maintenance cost.

[0048] In view of this, the present embodiment provides a compressor system 10, aiming to misalign the gas return end of the first gas return pipe 3 and the gas return end of the second gas return pipe 4, so that the initially unseparated gas-liquid mixed refrigerant will not enter the second gas return pipe 4, which can reduce the possibility of liquid slugging problems in the compressor system 10 and ensure the stable operation of the system, thereby solving the above technical problems.

[0049] As Figures 1 to 5As shown, according to an embodiment of the present invention, a compressor system 10 is proposed. The compressor system 10 includes a shell 1, a compressor body 2, a first air return pipe 3 and a second air return pipe 4.

[0050] The shell 1 has a top and a bottom relative to each other along its height direction. The shell 1 may include a cylinder, a top shell and a bottom shell which are separately arranged. The top shell is arranged on the top of the cylinder, and the bottom shell is arranged on the bottom of the cylinder. The cylinder and the top shell may also be an integral structure, and the top of the cylinder is the top of the shell 1. The cylinder and the bottom shell may also be an integral structure, and the bottom of the cylinder is the bottom of the shell 1.

[0051] The compressor body 2 is arranged in the shell 1, and the compressor body 2 includes a tank body 21. The tank body 21 and the shell 1 are both cylindrical structures. The axis of the tank body 21 coincides with the axis of the shell 1, and the axes of the two are arranged in the vertical direction. The top of the tank body 21 is provided with a return air port 13, and the side wall of the tank body 21 is provided with a return air joint 211.

[0052] The first air return pipe 3 has a first end and a second end along its extension direction, the first end is connected to the air return joint 211, and the second end is the air return end, and the second end extends toward the top of the shell 1; the second air return pipe 4 has a third end and a fourth end along its extension direction, the third end extends out from the air return port 13, and the fourth end is the air return end, the fourth end is located in the shell 1, and is staggered with the second end of the first air return pipe 3, that is, the air return end of the first air return pipe 3 and the air return end of the second air return pipe 4 are staggered in a direction perpendicular to the extension direction of the first air return pipe 3, the extension direction of the first air return pipe 3 is the vertical direction, and the direction perpendicular to the extension direction of the first air return pipe 3 is the horizontal direction, that is, the air return end of the first air return pipe 3 and the air return end of the second air return pipe 4 do not overlap in space in the horizontal direction, and are staggered at a certain distance or angle.

[0053] When the compressor system 10 of the present invention is working, the gas-liquid mixed refrigerant in the refrigerant cycle is sucked in through the second return air pipe 4, and gas-liquid separation is achieved in the shell 1. By staggering the return air end of the first return air pipe 3 and the return air end of the second return air pipe 4, the gas-liquid mixed refrigerant that has not been separated at the beginning will not enter the second return air pipe 4, and the liquid refrigerant can be prevented from entering the compressor body 2 through the second return air pipe 4, thereby reducing the possibility of liquid hammer problems in the compressor system 10, ensuring the stable operation of the system, guaranteeing the performance of the compressor, and extending the service life of the compressor system 10. At the same time, this setting has the advantages of simple system, low maintenance cost, small impact on energy efficiency and strong applicability.

[0054] In addition, since the first return air pipe 3 and the second return air pipe 4 are separately arranged and spaced from each other, the inertial force and inertial moment of the high-speed rotation of the compressor body 2 when working will cause the vibration of the compressor body 2, and transmit the vibration to the first return air pipe 3, so that the vibration between the compressor body 2 and the first return air pipe 3 will gradually dissipate and attenuate in the shell 1, and will not be transmitted to the second return air pipe 4 connected to the shell 1. At the same time, the shell 1 will also shield the noise generated by the first return air pipe 3 during operation, thereby greatly reducing low-frequency vibration and noise, and improving the user's hearing experience.

[0055] In some embodiments of the present invention, a first connection line is formed between one end of the second air return pipe 4 located in the shell 1 and the central axis of the shell 1, and a second connection line is formed between the air return end of the first air return pipe 3 and the central axis of the shell 1, and an angle is formed between the first connection line and the second connection line. The angle is set to a non-zero angle, for example, the angle can be 30°, 45°, 90°, 120°, 145°, 160° or 180°, etc. The larger the angle, the larger the staggered angle between the end of the second air return pipe 4 located in the shell 1 and the air return end of the first air return pipe 3. When the angle between the first connection line and the second connection line is 180°, the possibility of liquid hammer problem in the compressor body 2 is minimized.

[0056] In some embodiments of the present invention, one end of the second air return pipe 4 located in the shell 1 is bent toward the inner wall of the shell 1. When performing gas-liquid separation, the gas-liquid mixed refrigerant enters the shell 1 through the second air return pipe 4, and gas-liquid separation is performed in the shell 1. By bending the second air return pipe 4 toward the inner wall of the shell 1, the gas-liquid mixed refrigerant collides with the inner wall of the shell 1 at high speed, and the liquid refrigerant is separated by the centrifugal separation principle and gathered at the bottom of the shell 1, thereby improving the gas-liquid separation effect.

[0057] In some embodiments of the present invention, the second return pipe 4 includes a first branch pipe 41, a second branch pipe 42 and a transition pipe 43 connected between the first branch pipe 41 and the second branch pipe 42. The axis of the first branch pipe 41 is set at an angle to the axis of the second branch pipe 42. The first branch pipe 41 extends from the return port 13. The transition pipe 43 and the second branch pipe 42 are located in the shell 1. The transition pipe 43 is an arc-shaped pipe. Since the axis of the first branch pipe 41 and the second branch pipe 42 are set at an angle, the gas-liquid mixed refrigerant needs to change the flow direction when flowing through the second return pipe 4, thereby increasing the flow path and residence time of the refrigerant, so that the liquid refrigerant has more opportunities to separate from the mixed refrigerant. At the same time, the structure of the arc-shaped transition pipe 43 makes the flow of the fluid in the pipeline smoother, further reduces the resistance, and makes the refrigerant generate centrifugal force when changing direction. Due to its large density, the liquid refrigerant is more easily thrown outward under the action of centrifugal force, thereby separating from the gaseous refrigerant, improving the gas-liquid separation effect.

[0058] In some embodiments of the present invention, the axis of the first branch pipe 41 is perpendicular to the axis of the second branch pipe 42, and the plane where the axis of the second branch pipe 42 is located is perpendicular to the wall surface of the inner side wall of the shell 1. Specifically, the axes of the first branch pipe 41 and the second branch pipe 42 are arranged at a right angle of 90°, and the axis of the outlet end of the second branch pipe 42 is perpendicular to the wall surface of the inner side wall of the shell 1, which can change the movement direction of the gas-liquid mixed refrigerant entering the shell 1, so that the gas-liquid mixed refrigerant changes from vertical movement to tangential movement along the inner side wall of the shell 1 after entering the shell 1, thereby quickly forming a stable vortex in the shell 1, separating the gaseous refrigerant from the liquid refrigerant under the action of centrifugal force, and at the same time effectively reducing the possibility of the separated liquid refrigerant being re-involved in the fluid, reducing the back-mixing phenomenon, and improving the separation effect and efficiency. In addition, the outlet end of the second branch pipe 42 is perpendicular to the wall surface of the inner side wall of the shell 1, which can further reduce the problem of liquid hammer and ensure the performance of the compressor system 10.

[0059] In other embodiments, the second air return pipe 4 may also be a straight pipe. One end of the straight pipe extends from the air return port 13 of the housing 1, and the other end is located in the housing 1 and is staggered with the air return end of the first air return pipe 3. The straight pipe has a simple structure and is easy to shape.

[0060] In some embodiments of the present invention, the compressor body 2 further includes a cover 22 covering the top of the tank body 21, and one end of the first air return pipe 3 away from the air return joint 211 is higher than the cover 22 or has the same height as the cover 22. Since the separated gaseous refrigerant is gathered at the top of the shell 1, through the above arrangement, the air return end of the first air return pipe 3 can be located in the gaseous refrigerant separated from the gas-liquid mixed refrigerant, so that the gaseous refrigerant can be sucked into the compressor body 2 by the negative pressure of the compressor body 2.

[0061] Normally, a compression chamber and an inlet and an outlet connected to the compression chamber are provided in the tank body 21 of the compressor body 2. The inlet is connected to the return air joint 211, and the outlet is connected to the exhaust pipe 5. A rotor and a piston (not shown in the figure) are provided in the compression chamber. The rotor is used to drive the piston to compress the gas to do work, so as to compress the low-temperature and low-pressure gaseous refrigerant sucked from the inlet into a high-temperature and high-pressure gaseous refrigerant, and discharge the high-temperature and high-pressure gaseous refrigerant from the outlet to the exhaust pipe 5. A compression chamber and a rotor can be provided in the tank body 21, and accordingly, the number of the return air joint 211 is one. Two compression chambers and two rotors can also be provided in the tank body 21, and one rotor is provided in each compression chamber, and accordingly, the number of the return air joints 211 is two. For a compressor body 2 with two rotors, the two rotors alternately operate in their respective compression chambers, so that the gaseous refrigerant can be continuously compressed, thereby improving the energy efficiency of the compressor body 2. The number of rotors and the number of return air joints 211 are specifically determined according to the volume and power of the compressor body 2, and will not be repeated.

[0062] In some embodiments of the present invention, the number of the gas return connectors 211 is two, and the two gas return connectors 211 are arranged at intervals along the height direction of the tank body 21 on the side wall of the tank body 21. The number of the first gas return pipes 3 is one, and one first gas return pipe 3 is respectively connected to the two gas return connectors 211. Specifically, the first gas return pipe 3 is arranged in an "F" shape. The first gas return pipe 3 includes a first pipe section 31 and two second pipe sections 32 both connected to the first pipe section 31. The two second pipe sections 32 are parallel to each other and perpendicular to the wall surface of the outer side wall of the tank body 21. The two second pipe sections 32 are respectively connected to the two gas return connectors 211 in one-to-one correspondence. The low-temperature gaseous refrigerant inhaled from the first gas return pipe 3 enters the two compression chambers in the compressor body 2 through the two gas return connectors 211 respectively at the same time, and the two compression chambers alternately compress the gaseous refrigerant, improving the energy efficiency of the compressor body 2.

[0063] In some embodiments of the present invention, a fixing member 23 is further arranged on the side surface of the compressor body 2. The fixing member 23 is connected to the end of the first gas return pipe 3 far from the gas return connector 211, and the fixing member 23 is used to fix the first gas return pipe 3. Specifically, one end of the fixing member 23 is connected to the side surface of the tank body 21, and the other end of the fixing member 23 surrounds the outer periphery of the end of the first gas return pipe 3 far from the gas return connector 211. One end of the fixing member 23 can be welded to the side surface of the tank body 21, or one end of the fixing member 23 can be connected to the side surface of the tank body 21 through fasteners such as screws. By fixing the end of the first gas return pipe 3 to the side surface of the compressor body 2 through the fixing member 23, the position of the gas return pipe is ensured to be accurate and stable, preventing the gas return pipe from shifting or loosening due to vibration or other external forces, improving the overall stability of the system, and ensuring the long-term stable operation of the compressor.

[0064] In some embodiments of the present invention, the compressor system 10 further includes an oil return capillary tube 24. An oil sump is arranged at the bottom of the housing 1. One end of the oil return capillary tube 24 is connected to the first gas return pipe 3, and the other end of the oil return capillary tube 24 extends into the oil sump and is immersed in the oil in the oil sump. The diameter of the oil return capillary tube 24 is generally 0.5 mm to 1.5 mm. By arranging the oil return capillary tube 24, when the compressor system 10 is operating, the oil in the oil sump returns to the compressor body 2 through the oil return capillary tube 24, realizing the recycling of the oil, lubricating the compressor body 2, and ensuring the normal operation of the compressor system 10.

[0065] In some embodiments of the present invention, the compressor system 10 further includes an exhaust pipe 5. An exhaust joint 221 is provided at the top of the tank body 21, and an exhaust port 14 is provided at the top of the housing 1. One end of the exhaust pipe 5 is connected to the exhaust joint 221, and the other end of the exhaust pipe 5 extends out from the exhaust port 14. Specifically, the exhaust pipe 5 can be a copper pipe, a stainless steel pipe, or a metal braided hose. The copper pipe or the stainless steel pipe can have a certain structural strength while reducing vibration stress. The metal braided hose is a mesh structure with elasticity and flexibility. This structure can absorb and disperse vibration energy, greatly reducing vibration. Moreover, the metal braided hose can be freely bent and stretched within a certain range to adapt to the complex installation space and shape requirements in the exhaust pipe 5 system, facilitating the connection and arrangement of the pipes. The exhaust pipe 5 includes a plurality of branch pipe segments 51 connected in sequence. An angle is provided between two adjacent branch pipe segments 51, and the angle can be a right angle or an obtuse angle. In this embodiment, a 90° right angle is provided between two adjacent branch pipe segments 51. By providing a plurality of branch pipe segments 51, the total length of the exhaust pipe 5 can be increased, and a more complex exhaust path can be realized within a limited space. When the gas flows in the pipe, the turning and disturbance can disperse the sound waves in the air flow, reducing the propagation of sound waves, thereby reducing the exhaust noise.

[0066] In some embodiments, a muffler 25 is further provided on the cover body 22. The muffler 25 can effectively reduce the noise generated by vibration during the operation of the compressor body 2, further reducing the system noise, improving the operating efficiency of the compressor, and extending the service life.

[0067] In some embodiments, the compressor system 10 further includes a vibration damping device 6. The vibration damping device 6 is provided between the compressor body 2 and the housing 1 and is located at one end of the tank body 21 close to the cover body 22 or in the middle of the tank body 21. Specifically, the housing 1 is a cylindrical structure as a whole. The housing 1 includes a first sub-housing 11 and a second sub-housing 12, and the first sub-housing 11 and the second sub-housing 12 are connected to each other along the height direction of the housing 1. The vibration damping device 6 includes a first vibration damping plate 61, a second vibration damping plate 62, and a plurality of elastic vibration damping members 63 provided between the first vibration damping plate 61 and the second vibration damping plate 62. The first vibration damping plate 61 and the second vibration damping plate 62 are arranged around the outside of the tank body 21 along the height direction of the tank body 21, and the plurality of elastic vibration damping members 63 are arranged at intervals along the extending direction of the first vibration damping plate 61 and the second vibration damping plate 62 on the annular vibration damping plate. The elastic vibration damping members 63 can be rubber pads or springs, etc. When the vibration is transmitted to the vibration damping device 6, the elastic vibration damping members 63 will undergo elastic deformation (such as compression, tension, or bending), and this deformation can absorb the vibration energy, thereby reducing the vibration amplitude and improving the stability and reliability of the system.

[0068] A second aspect of the present invention provides an outdoor air conditioner 100, including a chassis and the above-mentioned compressor system 10. The compressor system 10 is installed on the chassis.

[0069] In this embodiment, a plurality of vibration damping components 7 are provided between the housing 1 of the compressor system 10 and the chassis. Each vibration damping component 7 includes a mounting member 71 and a vibration damping pad 72. The mounting member 71 is mounted on the bottom of the housing 1 or the side wall near the bottom. The mounting member 71 can be a metal bracket, a bolt, a nut, etc. The vibration damping pad 72 can be made of rubber, a spring, an airbag or other elastic materials, and is used to absorb and dissipate vibration energy. The plurality of vibration damping components 7 are evenly spaced between the housing 1 and the base. During the installation process, it is ensured that the vibration damping components 7 are evenly stressed to avoid uneven stress or deformation of the vibration damping pad 72 caused by improper installation.

[0070] A third aspect of the present invention proposes a heating, ventilation and air conditioning (HVAC) device 1000, such as Figure 6 As shown, the HVAC device 1000 is an air conditioner, which includes an air conditioner indoor unit 200 and the above-mentioned air conditioner outdoor unit 100. The air conditioner outdoor unit 100 further includes an outdoor heat exchanger 20, a four-way valve 8, a fan 30, a circulation circuit, etc. An indoor heat exchanger 201 is provided in the air conditioner indoor unit 200. The four-way valve 8 includes a first interface 81, a second interface 82, a third interface 83 and a fourth interface 84. The first interface 81 is communicated with the exhaust pipe 5, the second interface 82 is communicated with the outdoor heat exchanger 20, the third interface 83 is communicated with the second return pipe 4 of the compressor body 2, and the fourth interface 84 is communicated with the indoor heat exchanger 201. The four-way valve 8 is used to control the flow path of the refrigerant of the HVAC device 1000.

[0071] The HVAC device 1000 has a cooling mode and a heating mode. In the heating mode, the first interface 81 is conducted with the fourth interface 84, and the second interface 82 is conducted with the third interface 83. The exhaust pipe 5 of the compressor body 2 is communicated with the indoor heat exchanger 201, the second return pipe 4 of the compressor body 2 is communicated with the outdoor heat exchanger 20, and the indoor heat exchanger 201 is communicated with the outdoor heat exchanger 20, thereby forming a heating circuit for the refrigerant. In the heating mode, the high-temperature refrigerant flowing out of the compressor body 2 flows along the refrigerant pipe to the indoor heat exchanger 201, and the refrigerant flowing through the indoor heat exchanger 201 exchanges heat with the indoor environment to achieve heating of the indoor environment; the low-temperature refrigerant after heating flows to the outdoor heat exchanger 20, and then flows to the second return pipe 4 of the compressor body 2 via the outdoor heat exchanger 20.

[0072] In the refrigeration mode, the first interface 81 is in communication with the second interface 82, and the third interface 83 is in communication with the fourth interface 84. The exhaust pipe 5 of the compressor body 2 is in communication with the outdoor heat exchanger 20, and the second return air pipe 4 of the compressor body 2 is in communication with the indoor heat exchanger 201. The indoor heat exchanger 201 is in communication with the outdoor heat exchanger 20, thereby forming a refrigeration reflux of the refrigerant. The high-temperature refrigerant flowing out of the compressor body 2 flows along the refrigerant pipe to the outdoor heat exchanger 20. After the refrigerant flowing through the outdoor heat exchanger 20 is cooled, it continues to flow to the indoor heat exchanger 201 to exchange heat with the indoor environment to achieve refrigeration of the indoor environment. The refrigerant after refrigeration finally flows to the second return air pipe 4 of the compressor body 2.

[0073] As described above, only the preferred specific embodiments of the present invention are given, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A compressor system, characterized in that, Comprising: A housing, with a gas return port provided at the top of the housing; A compressor body, disposed within the housing, the compressor body including a tank body, and a gas return joint provided on the side wall of the tank body; A first gas return pipe, one end of the first gas return pipe is communicated with the gas return joint, and the other end extends towards the top of the housing; A second gas return pipe, one end of the second gas return pipe extends out from the gas return port, and the other end is located within the housing, and is arranged offset in a direction perpendicular to the extending direction of the first gas return pipe with respect to the end of the first gas return pipe away from the gas return joint.

2. The compressor system according to claim 1, wherein A first connecting line is formed between the end of the second gas return pipe located within the housing and the central axis of the housing, a second connecting line is formed between the gas return end of the first gas return pipe and the central axis of the housing, and the first connecting line and the second connecting line are arranged at an angle.

3. The compressor system according to claim 1, wherein The end of the second gas return pipe located within the housing is bent towards the inner side wall of the housing.

4. The compressor system according to claim 3, wherein, The second gas return pipe includes a first branch pipe, a second branch pipe, and a transition pipe connected between the first branch pipe and the second branch pipe. The axis of the first branch pipe and the axis of the second branch pipe are arranged at an angle. The first branch pipe extends out from the gas return port. The transition pipe and the second branch pipe are located within the housing, and the transition pipe is an arc-shaped pipe.

5. The compressor system according to claim 4, wherein The axis of the first branch pipe is perpendicular to the axis of the second branch pipe, and the plane where the axis of the second branch pipe is located is perpendicular to the wall surface of the inner side wall of the housing.

6. The compressor system according to claim 1, characterized in that, The compressor body further includes a cover body covering the top of the tank body, and the end of the first gas return pipe away from the gas return joint is higher than the cover body or has the same height as the cover body.

7. The compressor system according to claim 1, characterized in that, The number of the gas return joints is two, and the two gas return joints are arranged at intervals along the height direction of the tank body on the side wall of the tank body. The number of the first gas return pipes is one, and one first gas return pipe is respectively connected to the two gas return joints.

8. The compressor system according to claim 1, characterized in that, A fixing member is further provided on the side surface of the compressor body, the fixing member is connected to the end of the first gas return pipe away from the gas return joint, and the fixing member is used for fixing the first gas return pipe.

9. The compressor system according to any one of claims 1 to 8, characterized in that, The compressor system further includes an oil return capillary tube. An oil sump is provided at the bottom of the housing. One end of the oil return capillary tube is connected to the first gas return pipe, and the other end of the oil return capillary tube extends into the oil sump.

10. The compressor system according to any one of claims 1 to 8, characterized in that, The compressor system further includes an exhaust pipe. An exhaust joint is provided at the top of the tank body. An exhaust port is provided at the top of the housing. One end of the exhaust pipe is connected to the exhaust joint, and the other end of the exhaust pipe extends out from the exhaust port.

11. The compressor system according to claim 10, wherein, The exhaust pipe includes a plurality of branch pipe segments connected in sequence, and an angle is provided between adjacent two branch pipe segments.

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

13. A heating, ventilation and air conditioning equipment, characterized in that, Comprising an air conditioner indoor unit and an air conditioner outdoor unit according to claim 12, and the air conditioner outdoor unit is connected to the air conditioner indoor unit through a pipeline.

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