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

Abstract

The application belongs to the technical field of refrigeration, and particularly relates to a compressor integrated system, an air conditioner outdoor unit and a heating and ventilation device. The compressor integrated system comprises a shell, a top end of which is provided with a plurality of exhaust ports and a plurality of return air ports which are arranged at intervals; a compressor body arranged in the shell, the compressor body comprising a tank body and an exhaust joint and a return air joint which are in communication with the tank body; an exhaust pipe, one end of which is connected with the exhaust joint and the other end of which extends out of the exhaust port; and a first return air pipe and a second return air pipe, one end of the first return air pipe is connected with the return air joint, the other end of the first return air pipe extends towards the top end, one end of the second return air pipe extends out of the return air port, and the other end of the second return air pipe is arranged in the shell and is arranged at intervals from the end of the first return air pipe which is away from the return air joint. The application can effectively suppress low-frequency vibration caused by the return air pipe and reduce noise, thereby improving the listening experience of users.

Description

Technical Field

[0001] This application relates to the field of refrigeration technology, and more specifically, to a compressor integrated system, an outdoor air conditioning unit, and HVAC equipment. Background Technology

[0002] In related technologies, the compressor system of an outdoor air conditioning unit includes a compressor, a low-pressure tank, a gas-liquid separator, and connecting pipes. The low-pressure tank is generally used to store a certain volume of refrigerant, and the gas-liquid separator is used to separate the gaseous and liquid refrigerant in the gaseous refrigerant mixture. Due to the unbalanced mass of the compressor rotor, the inertial force and inertial torque generated by the high-speed rotation of the rotor during compressor operation will cause compressor vibration, especially the tangential vibration, which will then be transmitted to the return pipe rigidly connected to the gas-liquid separator, resulting in the deterioration of low-frequency structural sound and a poor listening experience for users. Summary of the Invention

[0003] The purpose of this application is to provide a compressor integrated system, an outdoor air conditioning unit, and HVAC equipment that can effectively suppress low-frequency vibrations caused by return air pipes, reduce noise, and improve the user's hearing experience.

[0004] The first aspect of this application proposes a compressor integrated system, comprising: a housing having a top end and a bottom end along its height direction, the top end having an exhaust port and a return port spaced apart; a compressor body disposed within the housing, the compressor body including a tank and an exhaust connector and a return connector bottom end communicating with the tank; an exhaust pipe having one end connected to the exhaust connector and the other end extending from the exhaust port; and a first return pipe and a second return pipe, one end of the first return pipe being connected to the return connector and the other end of the first return pipe extending toward the top end, one end of the second return pipe extending from the return port and the other end of the second return pipe being located within the housing and spaced apart from the end of the first return pipe away from the return connector.

[0005] According to the compressor integrated system provided in the embodiments of this application, by integrating the gas-liquid separator and / or low-pressure tank into a housing and placing the compressor body inside the housing, the structure is compact and occupies little space. This allows the housing to shield some of the noise generated by the compressor body during operation. At the same time, the top of the housing is provided with spaced exhaust ports and return ports. The exhaust pipe of the compressor body extends from the exhaust port. The first return pipe of the compressor body and the second return pipe extending from the return port are separately arranged and isolated from each other. The vibration generated by the compressor body during operation can be dissipated on its own after being transmitted to the first return pipe, and will not be transmitted to the second return pipe extending from the housing. This can effectively suppress the low-frequency vibration generated by the return pipe, reduce noise, and improve the user's hearing experience.

[0006] A second aspect of this application provides an outdoor unit for an air conditioner, including a compressor integrated system according to embodiments of this application.

[0007] A third aspect of this application provides a heating, ventilation, and air conditioning (HVAC) device, including an indoor air conditioning unit and an outdoor air conditioning unit according to an embodiment of this application, wherein the outdoor air conditioning unit is connected to the indoor air conditioning unit via pipes.

[0008] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0009] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. Wherein:

[0010] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. Wherein:

[0011] Figure 1 This is a schematic diagram of the structure of a compressor integrated system according to an embodiment of this application;

[0012] Figure 2 for Figure 1 The diagram shows the structure of the integrated compressor system after the housing has been concealed.

[0013] Figure 3 for Figure 1 The diagram shows a cross-sectional view of the integrated compressor system in a vertical plane.

[0014] Figure 4 for Figure 1 Top view of the internal structure of the compressor integrated system shown;

[0015] Figure 5 This is a schematic diagram of the structure of a compressor integrated system according to another embodiment of this application;

[0016] Figure 6 for Figure 5 The diagram shows the structure of the integrated compressor system with the housing concealed.

[0017] Figure 7 This is a schematic diagram of the structure of a compressor integrated system according to another embodiment of this application;

[0018] Figure 8 for Figure 7 The diagram shows the structure of the integrated compressor system after the housing has been concealed.

[0019] Figure 9 This is an exploded view of the outdoor unit of an air conditioner according to an embodiment of this application;

[0020] Figure 10 This is a schematic diagram of the electrical structure of the HVAC equipment according to an embodiment of this application;

[0021] Figure 11 This is a comparison diagram of the vibration and noise of the HVAC equipment in this application embodiment and HVAC equipment in related technologies in heating mode.

[0022] The labels in the attached diagram are as follows:

[0023] 1000. Heating, ventilation, and air conditioning equipment;

[0024] 100. Outdoor unit of air conditioner; 10. Compressor integrated system; 20. Chassis; 30. Second vibration damping component; 301. Support component; 302. Flexible pad; 40. Outdoor heat exchanger; 50. Fan; 200. Indoor unit of air conditioner; 210. Indoor heat exchanger;

[0025] 1. Housing; 11. Exhaust port; 12. Air return port; 13. Top end; 14. Bottom end; 15. First housing section; 16. Second housing section; 17. Connector joint; 1a. First section; 1b. Second section; 1c. Stepped section; 11a. Cover; 11b. Cylindrical shell; 11c. Bottom shell;

[0026] 2. Compressor body; 21. Tank; 211. Gas return connector; 22. Top; 221. Exhaust connector; 222. Terminal block; 23. Connector; 24. Oil return capillary tube;

[0027] 3. Exhaust pipe;

[0028] 4. First trachea;

[0029] 5. Second return air pipe; 51. First branch pipe; 52. Second branch pipe; 53. Transition pipe;

[0030] 6. First vibration damping assembly; 61. Vibration damping ring; 611. Notch; 62. Elastic element; 63. First vibration damping plate; 631. First notch; 64. Second vibration damping plate; 641. Second notch; 65. Vibration damping component;

[0031] 8. Four-way valve; 81. First valve port; 82. Second valve port; 83. Third valve port; 84. Fourth valve port. Detailed Implementation

[0032] Exemplary embodiments of this application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of this application and to fully convey the scope of this application to those skilled in the art.

[0033] 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 “described” as used herein may also include 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.

[0034] 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.

[0035] For ease of description, spatial relative terms may be used in the text to describe the relationship 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," "over," 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 is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented as "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.

[0036] In related technologies, the compressor system of an outdoor air conditioning unit includes a compressor, a low-pressure tank, a gas-liquid separator, and connecting pipes. The low-pressure tank is generally used to store a certain volume of refrigerant, and the gas-liquid separator is used to separate the gaseous and liquid refrigerant in the gaseous refrigerant mixture. Due to the unbalanced mass of the compressor rotor, the inertial force and inertial torque generated by the high-speed rotation of the rotor during compressor operation will cause compressor vibration, especially the tangential vibration, which will then be transmitted to the return pipe rigidly connected to the gas-liquid separator, resulting in the deterioration of low-frequency structural sound and a poor listening experience for users.

[0037] Therefore, this application provides a compressor integrated system that can effectively suppress low-frequency vibrations caused by the return gas pipeline, reduce noise, and improve the user's hearing experience.

[0038] Figure 1 This is a schematic diagram of the structure of a compressor integrated system according to an embodiment of this application. Figure 2 for Figure 1 The diagram shown is a structural schematic of the integrated compressor system with the housing concealed. Figure 3 for Figure 1 The compressor integrated system shown is a cross-sectional view in a vertical plane.

[0039] See Figures 1 to 3 The present application provides a compressor integrated system 10, which includes a housing 1, a compressor body 2, an exhaust pipe 3, a first return pipe 4, and a second return pipe 5.

[0040] The housing 1 has a top end 13 and a bottom end 14 along its height direction. The top end 13 is provided with an exhaust port 11 and an exhaust port 12 that are spaced apart.

[0041] The compressor body 2 is housed within the casing 1. The compressor body 2 includes a tank 21 and an exhaust connector 221 and a return connector 211 communicating with the tank 21. The compressor body 2 can stand upright within the casing 1, meaning the axis of the tank 21 is parallel to the height direction of the casing 1; alternatively, the compressor body 2 can lie on its side within the casing 1, meaning the axis of the tank 21 is perpendicular to the height direction of the casing 1. The axis of the tank 21 can also be set at other preset angles to the height direction of the casing 1, depending on the internal space and volume of the casing 1. A compression component is installed inside the tank 21 for compressing gas to perform work.

[0042] One end of the exhaust pipe 3 is connected to the exhaust connector 221, and the other end extends out from the exhaust port 11. One end of the first return pipe 4 is connected to the return connector 211, and the other end of the first return pipe 4 extends toward the top 13. One end of the second return pipe 5 extends out from the return port 12, and the other end of the second return pipe 5 is located inside the housing 1 and is spaced apart from the end of the first return pipe 4 that is away from the return connector 211.

[0043] In related technologies, low-pressure tanks are generally used to store a certain volume of refrigerant, approximately 2L to 4L. Gas-liquid separators are used to separate the gaseous and liquid refrigerant in a gaseous mixture, with a volume of approximately 1L. In this embodiment, the housing 1 integrates the gas-liquid separator and the low-pressure tank into one unit, with the compressor body 2 placed inside the housing 1. The housing 1 has a volume of approximately 4L to 5L. Alternatively, the low-pressure tank can be omitted, and the housing 1 can function solely as a gas-liquid separator, with a volume greater than 1L and less than 5L, or the volume can be determined based on the application scenario, as long as the housing 1 can accommodate the compressor body 2. Therefore, this embodiment integrates the gas-liquid separator and / or the low-pressure tank into a single housing 1, and places the compressor body 2 and related piping inside the housing 1. This results in a compact structure with minimal space occupation, allowing the housing 1 to shield some of the noise generated by the compressor body 2 during operation.

[0044] Furthermore, the casing 1 has a top end 13 and a bottom end 14 along its height direction. The top end 13 is provided with an exhaust port 11 and a return port 12 spaced apart. The low-temperature gas-liquid mixed refrigerant entering from the second return pipe 5 at the return port 12 undergoes gas-liquid separation under its own gravity. Since the density of the gaseous refrigerant is less than that of the liquid refrigerant, the liquid refrigerant will fall to the bottom end 14 of the casing 1, while the gaseous refrigerant remains at the top end 13 of the casing 1. The gaseous refrigerant is drawn into the compressor body 2 by the negative pressure of the first return pipe 4 for compression and work, producing a high-temperature and high-pressure gaseous refrigerant. The high-temperature and high-pressure gaseous refrigerant is discharged from the exhaust port 11 through the exhaust pipe 3 into the circulation pipeline outside the casing 1 for subsequent cooling or heating cycles.

[0045] Optionally, both the first return pipe 4 and the second return pipe 5 are made of stainless steel, which has high hardness and strength. Since the first return pipe 4 and the second return pipe 5 are separately installed and isolated from each other, the inertial force and inertial torque of the compressor body 2 during high-speed rotation cause the compressor body 2 to vibrate, and transmit the vibration to the first return pipe 4. This causes the vibration between the compressor body 2 and the first return pipe 4 to gradually dissipate and decay in the housing 1, and will not be transmitted to the second return pipe 5 connected to the housing 1. This greatly reduces the low-frequency vibration and noise generated by the return pipe, and improves the user's listening experience.

[0046] Figure 4 for Figure 1 The diagram shows a top view of the internal structure of the integrated compressor system.

[0047] In some embodiments, in the circumferential direction of the housing 1, one end of the second return air pipe 5 located inside the housing 1 is offset from the end of the first return air pipe 4 away from the return air connector 211 by a predetermined angle.

[0048] See Figure 4 The end of the first return pipe 4 furthest from the return pipe connector 211 is the return pipe end. The low-temperature gas-liquid mixed refrigerant entering the housing 1 from the second return pipe 5 contains liquid refrigerant. The end of the second return pipe 5 located inside the housing 1 is offset from the return pipe end of the first return pipe 4 by a preset angle instead of being directly opposite each other. This can prevent the liquid refrigerant from entering the first return pipe 4 from the return pipe end under its own gravity, thereby reducing the possibility of liquid slugging in the compressor body 2.

[0049] For example, a first line is formed between the end of the second return pipe 5 located inside the housing 1 and the central axis of the housing 1, and a second line is formed between the return end of the first return pipe 4 and the central axis of the housing 1. The first line and the second line are set at a preset angle θ. The larger the preset angle θ is, the greater the offset angle between the end of the second return pipe 5 located inside the housing 1 and the return end of the first return pipe 4. When the preset angle θ = 180°, the possibility of liquid slugging in the compressor body 2 is minimized.

[0050] Figure 5 This is a schematic diagram of the compressor integrated system according to another embodiment of this application. Figure 6 for Figure 5 The diagram shown is a structural schematic of the integrated compressor system with the housing portion concealed. Figure 7 This is a schematic diagram of the compressor integrated system according to another embodiment of this application. Figure 8 for Figure 7 The diagram shows the structure of the integrated compressor system after the housing has been concealed.

[0051] In some embodiments, the second return air pipe 5 is a straight pipe or a bend.

[0052] The second return air pipe 5 can be a straight pipe. One end of the straight pipe extends from the return air port 12 of the housing 1 and connects with other cooling pipes. The other end of the straight pipe is located inside the housing 1 and is offset from the return air end of the first return air pipe 4. The straight pipe has a simple structure and is easy to form.

[0053] The second return pipe 5 can also be a bend, with one end extending from the return port 12 of the housing 1 and the other end located inside the housing 1, offset from the return end of the first return pipe 4. Compared with a straight pipe, a bend can at least buffer the vibration impact when the gas-liquid mixed refrigerant enters the housing 1, further reducing vibration noise.

[0054] In some embodiments, the second return air pipe 5 includes a first branch pipe 51, a second branch pipe 52, and a transition pipe 53 connecting the first branch pipe 51 and the second branch pipe 52. The axis of the first branch pipe 51 is set at an angle to the axis of the second branch pipe 52. One end of the first branch pipe 51 extends out from the return air port 12. The transition pipe 53 and the second branch pipe 52 are located inside the housing 1, and one end of the second branch pipe 52 extends toward the side wall of the housing 1.

[0055] For example, such as Figure 2 , Figure 6 and Figure 8 As shown, the second return pipe 5 is an L-shaped bend, which includes a first branch pipe 51, a second branch pipe 52, and a transition pipe 53 connecting the first branch pipe 51 and the second branch pipe 52. The axis of the first branch pipe 51 and the axis of the second branch pipe 52 can be set perpendicular to each other, or they can be set at other angles. One end of the first branch pipe 51 extends from the return port 12. The transition pipe 53 is an arc-shaped pipe, which allows the refrigerant entering the first branch pipe 51 to flow smoothly into the second branch pipe 52. In addition, one end of the second branch pipe 52 extends toward the side wall of the housing 1. In this way, the gas-liquid mixed refrigerant entering from the second return pipe 5 changes from vertical movement to tangential movement along the side wall of the housing 1 when it enters the inner cavity of the housing 1. On the one hand, it can quickly form a vortex in the inner cavity of the housing 1. Under the action of centrifugal force, the denser liquid refrigerant will be thrown to the inner wall of the housing 1, while the less dense gaseous refrigerant will float on the inner side of the top 13 of the housing 1, thus improving the efficiency of gas-liquid separation. On the other hand, it can buffer the vibration impact when the gas-liquid mixed refrigerant enters the housing 1, further reducing vibration noise.

[0056] In some embodiments, the axial direction of the tank body 21 is parallel to the height direction of the shell 1, the return air connector 211 is provided on the side of the tank body 21 facing the bottom end 14, and the exhaust connector 221 is provided on the top 22 of the tank body 21 facing the top end 13.

[0057] like Figure 3As shown, both the housing 1 and the compressor body 2 are cylindrical. The compressor body 2 stands upright inside the housing 1, meaning the axial direction of the tank 21 is parallel to the height direction of the housing 1, making the structure of the compressor integrated system 10 more compact. The top 22 of the tank 21 faces the top 13 of the housing 1, and the bottom of the tank 21 faces the bottom 14 of the housing 1. The exhaust connector 221 is located at the top 22 of the tank 21, allowing the compressed high-temperature, high-pressure gaseous refrigerant to be completely discharged from other cooling pipes outside the housing 1 via the exhaust pipe 3. A return gas connector 211 is located on the side of the tank 21 facing the bottom 14 of the housing 1. The end of the first return gas pipe 4 away from the return gas connector 211 is the return gas end, which extends towards the top 13 of the housing 1. This allows the low-temperature gaseous refrigerant after gas-liquid separation to be completely drawn into the compressor body 2 from the top 13 of the housing 1 through negative pressure, fully utilizing the gas-liquid separation function of the housing 1.

[0058] In some embodiments, the end of the first return gas pipe 4 away from the return gas connector 211 is higher than or flush with the top 22 of the tank body 21.

[0059] like Figure 3 As shown, the end of the first return pipe 4 furthest from the return pipe connector 211 is the return pipe end. The return pipe end is higher than or flush with the top 22 of the tank 21. This ensures that the return pipe end is located in the gaseous refrigerant separated from the gas-liquid mixture, which facilitates the intake of the gaseous refrigerant into the compressor body 2 by the negative pressure of the compressor body 2. On the other hand, after the compressor integrated system 10 is assembled, the compressor body 2 needs to be sealed and leak-tested. The return pipe end of the first return pipe 4 is set higher than or flush with the top of the tank 21, which facilitates the quick insertion of the leak-test related connectors into the housing 1 and connecting them to the return pipe end, thus improving the convenience of the leak test.

[0060] In some embodiments, the compressor body 2 includes a cylinder assembly disposed within the tank 21, the number of which is one or two, and the number of cylinder assemblies is the same as the number of return air connectors 211.

[0061] The compressor body 2 has a cylinder assembly inside its tank 21. The cylinder assembly includes a compression chamber and an inlet and outlet communicating with the compression chamber. The inlet is connected to a return gas connector 211, and the outlet is connected to an exhaust gas connector 221. A rotor and piston (not shown in the figure) are installed inside the compression chamber. The rotor drives the piston to compress the gas, thus compressing the low-temperature, low-pressure gaseous refrigerant drawn in from the inlet into a high-temperature, high-pressure gaseous refrigerant, which is then discharged from the outlet to the exhaust pipe 3. The tank 21 can contain one cylinder assembly, i.e., one compression chamber and one rotor, with one return gas connector 211. Alternatively, the tank 21 can contain two cylinder assemblies, i.e., two compression chambers and two rotors, with one rotor in each compression chamber, and two return gas connectors 211. For a compressor body 2 with two rotors, the two rotors operate alternately in their respective compression chambers, thereby continuously compressing the gaseous refrigerant and improving the energy efficiency of the compressor body 2. The number of cylinder assemblies and return air connectors 211 are determined based on the volume and power of the compressor body 2, and will not be elaborated further.

[0062] In some embodiments, there are two return gas connectors 211, which are spaced apart in the height direction on the side of the tank body 21, and a first return gas pipe 4 is connected to both return gas connectors 211.

[0063] like Figure 2 and Figure 6 As shown, the first return gas pipe 4 is arranged in an "F" shape, and two return gas connectors 211 are spaced apart on the side of the tank 21 in the height direction. One first return gas pipe 4 is connected to both return gas connectors 211. The low-temperature gaseous refrigerant drawn in from the first return gas pipe 4 simultaneously enters the two compression chambers inside the compressor body 2 through the two return gas connectors 211. The two compression chambers alternately compress the gaseous refrigerant, thereby improving the energy efficiency of the compressor body 2.

[0064] In some embodiments, there are two return gas connectors 211 and two first return gas pipes 4. The two return gas connectors 211 are spaced apart in the height direction on the side of the tank body 21, and the two first return gas pipes 4 are arranged in parallel. One first return gas pipe 4 is connected to one return gas connector 211.

[0065] like Figure 8 As shown, there are two return air connectors 211 and two first return air pipes 4, with one first return air pipe 4 connected to one return air connector 211. The two return air connectors 211 are spaced apart along the height of the side of the tank 21. One end of each of the two first return air pipes 4 is connected to the corresponding return air connector 211, and the other ends of each first return air pipe 4 extend parallel to and towards the top 13 of the housing 1. The two compression chambers of the compressor body 2 alternately and independently draw air from the corresponding first return air pipes 4 to compress and perform work, thereby achieving continuous compression operation.

[0066] In some embodiments, a connector 23 is also provided on the side of the tank body 21, and the connector 23 is connected to the end of the first return gas pipe 4 away from the return gas connector 211.

[0067] like Figure 2 , Figure 6 and Figure 8 As shown, a connector 23 can be provided on the side of the tank body 21. One end of the connector 23 is connected to the side of the tank body 21, and the other end of the connector 23 surrounds the outer periphery of the end of the first return air pipe 4 away from the return air connector 211, further reducing the vibration of the first return air pipe 4 and reducing noise. The shape of the connector 23 is not limited, as long as it can fix a section of the first return air pipe 4. One end of the connector 23 can be welded to the side of the tank body 21, or the other end of the connector 23 can be connected to the side of the tank body 21 by fasteners such as screws and pins. The threaded hole or pin hole of the tank body 21 is a blind hole to ensure the airtightness of the tank body 21.

[0068] In some embodiments, the exhaust pipe 3 is a straight pipe or a bend.

[0069] like Figure 2 As shown, both the housing 1 and the compressor body 2 are cylindrical. The compressor body 2 stands upright inside the housing 1. The exhaust connector 221 is located at the top 22 of the housing 21. The exhaust pipe 3 can be a straight pipe, with one end connected to the exhaust connector 221 and the other end extending from the exhaust port 11. The high-temperature, high-pressure refrigerant discharged from the compressor body 2 is directly discharged through the straight pipe into the cooling pipes outside the housing 1. The exhaust pipe 3 can also be a bent pipe, with one end connected to the exhaust connector 221 and the other end extending from the exhaust port 11. Compared to a straight pipe, a bent pipe can reduce the rigidity of the exhaust pipe 3, mitigate the vibration and impact on the exhaust pipe 3, improve the service life of the exhaust pipe 3, and further reduce system noise.

[0070] In some embodiments, the exhaust pipe 3 includes a plurality of pipe segments connected in sequence in the space between the outer wall of the tank 21 and the inner wall of the shell 1, with adjacent pipe segments bent at a preset angle, one pipe segment being connected to the exhaust connector 221, and the other pipe segment extending out from the exhaust port 11.

[0071] like Figure 6As shown, the exhaust pipe 3 is a bent pipe. After exiting from the exhaust connector 221, the exhaust pipe 3 extends towards the side wall of the shell 1, then bends towards the bottom end 14 and extends for a certain length. It then extends for a certain length parallel to the bottom end 14 and bends again towards the top end 13, bending at least three times before finally extending from the exhaust port 11. A section of the exhaust pipe 3 parallel to the bottom end 14 is positioned near the top 22 of the tank body 21. The multiple bends of the exhaust pipe 3 improve its flexibility, increase its resistance to deformation, reduce the vibration stress it experiences, extend its service life, and reduce exhaust noise.

[0072] like Figure 8 As shown, the exhaust pipe 3 is a bent pipe with a relatively long length. It can be bent around the entire first return air pipe 4, so that the section of the exhaust pipe 3 parallel to the bottom end 14 is located between the return air connector 211 and the bottom end 14. Multiple bends in the exhaust pipe 3 improve its flexibility, increase its resistance to deformation, reduce the vibration stress on it, extend its service life, and reduce exhaust noise.

[0073] In some embodiments, the exhaust pipe 3 is any one of a copper pipe, a rubber hose, or a stainless steel braided mesh pipe, or a combination of at least two of these. In one example, the exhaust pipe 3 is entirely made of a copper pipe, a rubber hose, or a stainless steel braided mesh pipe. When the exhaust pipe 3 is a rubber hose, since it is built into the housing 1, there is no need to consider refrigerant leakage. In another example, the two ends of the exhaust pipe 3 are copper pipes for easy welding connection, while the remaining part of the exhaust pipe 3 is a stainless steel braided mesh pipe, which improves the flexibility of the exhaust pipe 3 and further reduces vibration and noise during the exhaust process.

[0074] In some embodiments, the top end 13 of the housing 1 is also provided with a muffler (not shown in the figure) communicating with the exhaust port 11, one end of the exhaust pipe 3 extends from the exhaust port 11 to the muffler, and an additional exhaust pipe is provided at the end of the muffler away from the exhaust port 11.

[0075] Optionally, a muffler is also provided on the outer side of the top 13 of the housing 1. One end of the exhaust pipe 3 extends from the exhaust port 11 to the muffler. The muffler is used to eliminate the exhaust noise during the operation of the compressor body 2, further reducing system noise. The high-temperature and high-pressure gaseous refrigerant discharged from the exhaust pipe 3 is discharged to the external cooling pipeline through an additional exhaust pipe at the end of the muffler away from the exhaust port 11 after the noise is eliminated by the muffler.

[0076] In some embodiments, an oil separator (not shown in the figure) communicating with the exhaust port 11 is also provided on the outer side of the top 13 of the housing 1. One end of the exhaust pipe 3 extends from the exhaust port 11 and bends toward the side wall of the oil separator. An additional exhaust pipe is provided at the end of the oil separator away from the exhaust port 11.

[0077] Because the exhaust pipe 3 inevitably carries away the oil from the compression components when discharging the high-temperature, high-pressure gaseous refrigerant, resulting in a decrease in the system's cooling capacity, an oil separator is needed to separate the oil from the gaseous refrigerant. Therefore, in this embodiment, an oil separator is installed on the outer side of the top 13 of the housing 1. The end of the exhaust pipe 3 extending from the exhaust port 11 bends towards the side wall of the oil separator, causing the oil-gas mixture to change from vertical movement to tangential movement along the side wall of the oil separator after entering it. This rapidly forms a vortex within the oil separator. Under the action of centrifugal force, the denser oil is thrown to the side wall, while the less dense gaseous refrigerant is discharged outwards along the auxiliary exhaust pipe, thus achieving the separation of oil and gaseous refrigerant. It is understandable that the oil separator can also absorb some exhaust noise, achieving a certain degree of noise reduction.

[0078] In some embodiments, the compressor integrated system 10 further includes a first vibration damping component 6 disposed within the housing 1, the axial direction of the tank 21 being parallel to the height direction of the housing 1, and the compressor body 2 being suspended within the housing 1 by the first vibration damping component 6.

[0079] like Figure 2 , Figure 6 and Figure 8 As shown, the compressor body 2 is cylindrical and stands upright inside the housing 1, meaning the axial direction of the tank 21 is parallel to the height direction of the housing 1, making the structure of the compressor integrated system 10 more compact. The compressor body 2 is suspended inside the housing 1 by the first vibration damping component 6, allowing the vibration generated by the compressor body 2 during operation to be absorbed and dissipated by the first vibration damping component 6. This prevents the compressor body 2 from directly transmitting all vibrations to the housing 1, which helps reduce the overall vibration and noise of the compressor integrated system 10 and lowers the possibility of fatigue failure of the compressor body 2 under periodic vibration excitation. The first vibration damping component 6 can be located at multiple positions between the inner wall of the housing 1 and the outer wall of the tank 21 of the compressor body 2, depending on the specific structural layout of the compressor body 2 within the housing 1.

[0080] In some embodiments, the first vibration damping component 6 is disposed between the upper end of the tank 21 near the top 13 and the inner wall of the shell 1.

[0081] like Figure 2As shown, the compressor body 2 is suspended inside the housing 1 by a first vibration damping component 6, which is located between the upper end of the tank 21 near the top 13 and the inner wall of the housing 1. The inertial force and inertial torque generated by the high-speed rotation of the compressor body 2 will cause the compressor body 2 to vibrate, resulting in vibration of the exhaust pipe 3 connected to the top 13 of the housing 1 and the first return pipe 4 connected to the tank 21. The first vibration damping component 6, located between the upper end of the tank 21 near the top 13 and the inner wall of the housing 1, can reduce the vibration of the exhaust pipe 3 and the first return pipe 4, thereby improving the vibration stress of the exhaust pipe 3 and the first return pipe 4 and increasing their service life.

[0082] In some embodiments, the first vibration damping component 6 is disposed between the middle of the tank 21 and the inner wall of the shell 1.

[0083] In this embodiment, the middle part of the tank 21 refers to the middle area in the axial direction of the tank 21. When the inertial force and inertial torque generated by the high-speed rotation of the rotor of the compressor body 2 cause the compressor body 2 to vibrate, the first vibration damping component 6 is connected between the middle part of the tank 21 and the inner wall of the housing 1, so that the swing of the top 22 side of the tank 21 and the swing of the bottom side are similar, thereby making the overall swing of the compressor integrated system 10 more stable and reliable.

[0084] In some embodiments, the first vibration damping component 6 is disposed between the lower end of the tank 21 near the bottom end 14 and the inner wall of the shell 1.

[0085] In this embodiment, the compression component is located on the bottom side of the tank 21. When the inertial force and inertial torque generated by the high-speed rotation of the rotor of the compressor body 2 cause the compressor body 2 to vibrate, the bottom area vibrates more. The first vibration damping component 6 is connected between the lower end of the tank 21 near the bottom 14 and the inner wall of the shell 1, which can reduce the overall sway of the compressor integrated system 10 from the source.

[0086] In some embodiments, the housing 1 includes a first segment 1a, a second segment 1b arranged sequentially along the height direction, and a step portion 1c connecting the first segment 1a and the second segment 1b. The outer diameter of the first segment 1a is larger than the outer diameter of the second segment 1b, and the first vibration damping component 6 is disposed between the step portion 1c and the tank body 21.

[0087] like Figure 1As shown, the shell 1 is a cylindrical body that is wider at the top and narrower at the bottom, meaning that the outer diameter of the first segment 1a is larger than the outer diameter of the second segment 1b. The first segment 1a and the second segment 1b are connected by a stepped portion 1c. The stepped portion 1c can be located at the upper part of the shell 1, corresponding to the top of the tank 21 near the cover 22, or it can be located in the middle of the shell 1, corresponding to the middle of the tank 21. The stepped portion 1c is used to fix and support the first vibration damping component 6. Here, the middle of the tank 21 or the middle of the shell 1 refers to the position within 1 / 3 to 2 / 3 of the height of the tank 21 or the shell 1.

[0088] In some embodiments, the first vibration damping component 6 includes a damping ring 61 with a notch 611 and a plurality of elastic members 62. The damping ring 61 is sleeved on the outer periphery of the tank body 21 and welded to the tank body 21. The notch 611 is used to at least avoid the first return air pipe 4. The plurality of elastic members 62 are arranged at intervals along the circumference of the damping ring 61, and the plurality of elastic members 62 are located between the step portion 1c and the damping ring 61.

[0089] like Figure 2 As shown, a vibration damping ring 61 is fitted onto the outer periphery of the top or middle part of the tank body 21. The inner surface of the vibration damping ring 61 is welded to the outer periphery of the top or middle part of the tank body 21. Multiple elastic elements 62 are located between the step portion 1c and the vibration damping ring 61. The elastic elements 62 can be oil-resistant, refrigerant-resistant, high-temperature-resistant rubber pads or springs, etc., used to reduce the vibration generated by the compressor body 2. Optionally, the step portion 1c is embedded with nuts for multiple screws. The screw shanks pass through the elastic elements 62 and the vibration damping ring 61 in sequence, and are threadedly connected to the screw shanks by nuts. Multiple elastic elements 62 are spaced apart circumferentially along the vibration damping ring 61 to ensure that the compressor body 2 is subjected to balanced force. The vibration damping ring 61 is also provided with a notch 611 to at least avoid the first return gas pipe 4, so as to prevent the vibration of the first return gas pipe 4 from superimposing with the vibration of the compressor body 2, thereby improving the vibration damping effect. In addition, after the gas-liquid mixture entering from the return air port 12 is separated into gas and liquid, the liquid refrigerant can enter the bottom end 14 of the housing 1 through the notch 611, while the gaseous refrigerant can be retained at the top end 13 above the notch 611.

[0090] In some embodiments, the housing 1 includes a first sub-shell 15 and a second sub-shell 16 connected to each other along the height direction. The first sub-shell 15 includes a first segment 1a and a step portion 1c, and the second sub-shell 16 includes a second segment 1b.

[0091] like Figure 3As shown, to facilitate the fabrication of the housing 1, the first sub-shell 15 includes a first segment 1a and a stepped portion 1c, and the second sub-shell 16 includes a second segment 1b. The first sub-shell 15 and the second sub-shell 16 are welded or threaded together to ensure the airtightness of the housing 1. Since the connection between the first sub-shell 15 and the second sub-shell 16 avoids the stepped portion 1c, it does not affect the vibration damping effect of the first vibration damping component 6, and also avoids problems such as cracking at the connection between the first sub-shell 15 and the second sub-shell 16 due to vibration.

[0092] In some embodiments, the first vibration damping component 6 includes a first damping plate 63 with a first notch 631, a second damping plate 64 with a second notch 641, and a plurality of elastic members 62. The first damping plate 63 is sleeved on the outer periphery of the tank body 21 and welded to the tank body 21. The second damping plate 64 is sleeved on the outer periphery of the tank body 21 and welded to the inner wall of the shell 1. The first notch 631 and the second notch 641 are respectively used to at least avoid the first return air pipe 4. The plurality of elastic members 62 are spaced apart between the first damping plate 63 and the second damping plate 64.

[0093] like Figure 6 As shown, the first vibration damping assembly 6 includes a first damping plate 63, a second damping plate 64, and multiple elastic elements 62. The first damping plate 63 is sleeved on the outer periphery of the tank 21, and its inner surface is welded to the outer periphery of the top or middle part. The second damping plate 64 is sleeved on the outer periphery of the tank 21, and its outer surface is welded to the inner wall of the shell 1. Multiple elastic elements 62 are spaced apart between the first damping plate 63 and the second damping plate 64. The elastic elements 62 can be oil-resistant, refrigerant-resistant, high-temperature-resistant rubber pads or springs, etc., used to reduce the vibration generated by the compressor body 2. The first damping plate 63 is also provided with a first notch 631 for at least avoiding the first return pipe 4, and the second damping plate 64 is also provided with a second notch 641 for at least avoiding the first return pipe 4, so as to avoid the vibration of the first return pipe 4 and the vibration of the compressor body 2 from being superimposed, thereby improving the vibration damping effect. In addition, after the gas-liquid mixture entering from the return air port 12 is separated into gas and liquid, the liquid refrigerant can enter the bottom 14 of the housing 1 through the first notch 631 and the second notch 641, while the gaseous refrigerant can remain at the top 13 above the first notch 631 and the second notch 641.

[0094] In some embodiments, the housing 1 includes a cover 11a, a cylindrical shell 11b, and a bottom shell 11c arranged sequentially along its height. The cylindrical shell 11b is a cylindrical body. The cover 11a covers one end of the cylindrical shell 11b, and the bottom shell 11c covers the other end of the cylindrical shell 11b. The cover 11a is provided with an exhaust port 11 and an air return port 12 spaced apart. The first vibration damping component 6 is disposed between the inner wall of the cylindrical shell 11b and the outer wall of the tank 21.

[0095] like Figure 5 As shown, the shell 1 has a cylindrical structure and includes a cover 11a, a cylindrical shell 11b, and a bottom shell 11c arranged sequentially along its height. The end of the cover 11a facing away from the cylindrical shell 11b is the top end 13 of the shell 1, and the end of the bottom shell 11c facing away from the cylindrical shell 11b is the bottom end 14 of the shell 1. The cylindrical shell 11b can be formed by rolling a rectangular sheet of paper. The cover 11a and the bottom shell 11c have many structural forms, such as... Figure 5 As shown, the cover 11a and the bottom shell 11c can be stamped from sheet metal, and have a certain amount of accommodating space; as Figure 7 As shown, the cover 11a and the bottom shell 11c can also be flat metal plates. This split design of the shell 1 facilitates mass production and saves manufacturing costs. The first vibration damping component 6 can have many structural forms, such as, but not limited to, those shown. Figure 6 The first vibration damping component 6 is shown.

[0096] In some embodiments, the compressor integrated system 10 further includes a first vibration damping component 6 disposed within the housing 1, wherein the axial direction of the tank 21 is parallel to the height direction of the housing 1, and the first vibration damping component 6 is disposed between the bottom of the tank 21 facing the bottom end 14 and the inner wall of the housing 1.

[0097] like Figure 7 and Figure 8 As shown, the housing 1 has a cylindrical structure, and the cover 11a and the bottom shell 11c can also be flat metal plates. Since the rotor of the compressor body 2 is generally located at the bottom of the tank 21, which is close to the bottom end, the first vibration damping component 6 is located between the bottom of the tank 21 and the bottom shell 11c of the housing 1. Most of the vibration generated by the compressor body 2 during operation will be indirectly transmitted to the housing 1 through the first vibration damping component 6, thereby reducing the overall vibration of the compressor integrated system 10.

[0098] In some embodiments, the first vibration damping component 6 includes a vibration damper 65 and a plurality of elastic elements 62. The vibration damper 65 is welded to the bottom of the tank body 21, and the plurality of elastic elements 62 are located between the vibration damper 65 and the bottom end 14.

[0099] like Figure 7 and Figure 8 As shown, the housing 1 has a cylindrical structure, and the cover 11a and the bottom shell 11c can also be flat metal plates. The vibration damper 65 has a ring-shaped structure and is welded to the bottom of the tank 21. Multiple elastic elements 62 are located between the vibration damper 65 and the bottom end 14 of the housing 1. The elastic elements 62 can be oil-resistant, refrigerant-resistant, high-temperature-resistant rubber pads or springs, etc., used to reduce the vibration generated by the compressor body 2. Optionally, the bottom shell 11c of the housing 1 has nuts for multiple screws embedded in it. The screw shanks pass through the elastic elements 62 and the vibration damper 65 in sequence and are threadedly connected to the screw shanks by nuts.

[0100] In some embodiments, an oil sump is provided at the bottom end 14 of the housing 1, and the compressor integrated system 10 further includes an oil return capillary 24, one end of which is connected to the first return gas pipe 4, and the other end of which extends into the oil sump.

[0101] like Figure 2 , Figure 6 and Figure 8 As shown, an oil sump is provided at the bottom 14 of the housing 1. The oil in the oil sump is used to lubricate the rotor and other components of the compressor body 2. During the process of discharging high-temperature and high-pressure gaseous refrigerant, the compressor body 2 inevitably carries away some mist-like oil, resulting in a reduction in the oil in the compressor body 2. In addition, if there is too much oil in the refrigerant in the circulation loop, it may lead to a decrease in the system's cooling capacity. To address this, in this embodiment, an oil return capillary tube 24 is added to the compressor body 2. One end of the oil return capillary tube 24 is connected to the first return gas pipe 4, and the other end of the oil return capillary tube 24 extends into the oil sump on one side of the bottom 14 of the housing 1. In this way, in the gas-liquid mixed refrigerant entering from the second return gas pipe 5, the density of the oil is greater than the density of the liquid refrigerant, and the density of the liquid refrigerant is greater than the density of the gaseous refrigerant. Therefore, the refrigerant will separate into oil, liquid refrigerant, and gaseous refrigerant under its own gravity, and the oil will fall into the oil sump at the bottom of the housing 1. The oil return capillary tube 24 can introduce oil from the oil sump into the compressor body 2 for replenishment, realizing the recycling of oil. The diameter of the oil return capillary tube 24 is generally 0.5mm to 1.5mm. Compared with the separate addition of an oil return device in related technologies, the oil return capillary tube 24 reduces manufacturing costs and improves the integration of the system while realizing the oil separation function.

[0102] In some embodiments, the top 13 of the housing 1 is provided with a connector 17, and the top of the tank 21 is provided with a terminal block 222. The terminal block 222 is electrically connected to the connector 17 via an adapter wire.

[0103] like Figures 1 to 8 As shown, the compressor body 2 is housed within the casing 1. A terminal block 222 is located on the top of the tank 21 of the compressor body 2. The terminal block 222 can be a three-phase current terminal block. The rotor and other components inside the compressor body 2 are driven to rotate by a motor. The power supply and control signals of the motor are electrically connected to the terminal block 222. One end of the connector 17 is electrically connected to the external electrical control unit of the casing 1 via a wire, and the other end of the connector 17 is electrically connected to the terminal block 222 via an adapter wire. The adapter wire must be made of materials that meet the requirements of oil resistance, refrigerant resistance, and high temperature resistance.

[0104] Figure 9 This is an exploded view of the outdoor unit of an air conditioner according to an embodiment of this application.

[0105] See Figure 9This application provides an outdoor unit 100 for an air conditioner, including a compressor integrated system 10 according to this application.

[0106] In some embodiments, the outdoor unit 100 of the air conditioner further includes a chassis 20 and a second vibration damping component 30, the compressor integrated system 10 is disposed on the chassis 20, and the second vibration damping component 30 is disposed between the chassis 20 and the housing 1 of the compressor integrated system 10.

[0107] The outdoor unit 100 of the air conditioner also includes an outdoor heat exchanger 40, a fan 50, a four-way valve 8, and a circulation loop, all mounted on the chassis 20. The second vibration damping component 30 is disposed between the chassis 20 and the housing 1 of the compressor integrated system 10, which can further reduce the vibration and noise of the compressor integrated system 10, thereby reducing the vibration and noise of the outdoor unit 100 of the air conditioner.

[0108] In some embodiments, the second vibration damping component 30 includes a support member 301 and a flexible pad 302. The support member 301 is connected to the bottom end 14 of the housing 1 or the side wall near the bottom end 14, and the flexible pad 302 is disposed between the chassis 20 and the support member 301.

[0109] like Figure 1 , Figure 5 and Figure 7 As shown, the support member 301 of the second vibration damping component 30 can be in various forms such as a ring-shaped plate or a frame structure. It can be welded to the bottom end 14 of the housing 1 or to the side wall of the housing 1 near the bottom end 14. Multiple flexible pads 302 are located between the chassis 20 and the support member 301. The flexible pads 302 can be oil-resistant, refrigerant-resistant, high-temperature-resistant rubber pads or springs, etc., used to reduce the vibration and noise of the compressor integrated system 10. Optionally, the chassis 20 is embedded with nuts for multiple screws. The screw shanks pass through the flexible pads 302 and the support member 301 in sequence and are threadedly connected to the screw shanks by nuts.

[0110] Figure 10 This is a schematic diagram of the electrical structure of the HVAC equipment according to an embodiment of this application.

[0111] See Figure 10 This application provides a heating, ventilation and air conditioning (HVAC) device 1000, including an indoor air conditioning unit 200 and an outdoor air conditioning unit 100, which is connected to the indoor air conditioning unit 200 via pipes.

[0112] The indoor unit 200 of the air conditioner is installed indoors, and the outdoor unit 100 of the air conditioner is installed outdoors. It is used for cooling or heating and transports refrigerant through pipes. The refrigerant exchanges heat with the indoor air and the outdoor air respectively. The indoor unit 200 is used to deliver cold or hot air into the room to achieve the effect of cooling or heating.

[0113] like Figure 8 and Figure 10 As shown, the four-way valve 8 includes a first valve port 81, a second valve port 82, a third valve port 83, and a fourth valve port 84. The first valve port 81 is connected to the exhaust pipe 3 of the compressor body 2, the third valve port 83 is connected to the second return pipe 5 of the compressor body 2, the second valve port 82 is connected to the inlet of the outdoor heat exchanger 40, and the fourth valve port 84 is connected to the outlet of the indoor heat exchanger 210.

[0114] Therefore, the four-way valve 8 has two working states: When the four-way valve 8 is de-energized, the HVAC equipment 1000 operates normally and enters the refrigeration cycle mode. At this time, the first valve port 81 can be connected to the second valve port 82, and the third valve port 83 can be connected to the fourth valve port 84. The refrigerant flows in the first direction in the circulation loop. After the refrigerant is discharged from the exhaust pipe 3 of the compressor body 2, it flows sequentially through the four-way valve 8 to the outdoor heat exchanger 40 and the indoor heat exchanger 210 of the outdoor unit 100. At this time, the outdoor heat exchanger 40 is used as a condenser to condense the high-temperature and high-pressure refrigerant discharged from the compressor body 2. The fan 50 can improve the heat exchange efficiency of the outdoor heat exchanger 40. The indoor heat exchanger 210 is used as an evaporator to exchange heat with the indoor air through the low-temperature refrigerant, thereby outputting cold air to the room. Afterward, the refrigerant flows back to the compressor body 2 through the second return pipe 5 and the first return pipe 4.

[0115] When the four-way valve 8 is energized, the HVAC equipment 1000 enters the defrosting circulation mode. At this time, the first valve port 81 can be connected to the fourth valve port 84, and the second valve port 82 can be connected to the third valve port 83. The refrigerant flows in the circulation loop in the second direction, which is opposite to the first direction. After the refrigerant is discharged from the exhaust pipe 3 of the compressor body 2, it flows sequentially to the indoor heat exchanger 210 and the outdoor heat exchanger 40 through the four-way valve 8. At this time, the indoor heat exchanger 210 is used as a condenser. The high-temperature and high-pressure refrigerant discharged from the exhaust pipe 3 of the compressor body 2 exchanges heat with the indoor heat exchanger 210, thereby outputting heating to the room. The outdoor heat exchanger 40 is used as an evaporator. Afterward, the refrigerant flows back to the compressor body 2 through the second return pipe 5 and the first return pipe 4.

[0116] Figure 11 This is a comparison diagram of the vibration and noise of the HVAC equipment in this application embodiment and HVAC equipment in related technologies in heating mode.

[0117] For example, the HVAC equipment 1000 of this application embodiment includes an indoor air conditioning unit 200 and an outdoor air conditioning unit 100 of this application embodiment. The outdoor air conditioning unit 100 is connected to the indoor air conditioning unit 200 through a pipe. The outdoor air conditioning unit 100 includes a compressor integrated system 10, a chassis 20, and a second vibration damping assembly 30 disposed between the chassis 20 and the housing 1 of the compressor integrated system 10. The compressor integrated system 10 includes a housing 1, a compressor body 2, an exhaust pipe 3, a first return pipe 4, and a second return pipe 5. The housing 1 is... Figure 5 The compressor body 2 is suspended inside the cylindrical housing 1. The axial direction of the tank 21 of the compressor body 2 is parallel to the height direction of the housing 1. The return gas connector 211 is located on the side of the tank 21 facing the bottom 14, and the exhaust connector 221 is located on the top 22 of the tank 21 facing the top 13. The exhaust pipe 3 is a bent pipe, with one end connected to the exhaust connector 221 and the other end extending from the exhaust port 11. One end of the first return gas pipe 4 is connected to the return gas connector 211, and the other end of the first return gas pipe 4 extends towards the top 13. One end of the second return gas pipe 5 extends from the return gas port 12, and the other end of the second return gas pipe 5 is located inside the housing 1 and is spaced apart from the end of the first return gas pipe 4 away from the return gas connector 211. There are two return gas connectors 211, which are spaced apart on the side of the tank 21 in the height direction. One first return gas pipe 4 is connected to both return gas connectors 211. The first vibration damping component 6 is disposed between the upper end of the tank 21 near the top 13 and the inner wall of the housing 1, so as to suspend the compressor body 2 inside the housing 1.

[0118] See Figure 11 This diagram illustrates a comparative analysis of the vibration and noise levels of the HVAC equipment 1000 according to the above embodiments of this application and HVAC equipment in related technologies under heating mode. It shows the noise spectrum analysis of the compressor body 2 at the first harmonic, second harmonic, and full frequency bands of its normal operating frequency. Taking the normal operating frequency of the compressor body 2 as an example (50Hz), the horizontal axis represents the vibration frequency, and the vertical axis represents the vibration and noise measured at the compressor body 2. The solid line represents the vibration and noise measured in this application, and the dashed line represents the vibration and noise measured in related technologies. The comparison results are as follows:

[0119] As can be seen from the noise spectrum analysis diagram at the first harmonic, the vibration noise of this application is consistently significantly lower than that of related technologies, with the noise reduction reaching 12dB at 102Hz, where the noise reduction effect is the most significant.

[0120] As can be seen from the noise spectrum analysis diagram at the second harmonic, the vibration noise of this application is consistently significantly lower than that of related technologies. The noise is reduced by 12dB at 92Hz and by 13dB at 110Hz, with the most significant noise reduction effect.

[0121] As can be seen from the noise spectrum analysis of the entire frequency band, the vibration noise of this application fluctuates relatively little overall. Before reaching 86 Hz, the vibration noise of this application is sometimes higher than that of the related technologies and sometimes lower. After reaching 86 Hz, the vibration noise of the related technologies gradually increases, while the vibration noise of the compressor body 2 of this application is always lower than that of the related technologies. The noise is reduced by 4.5 dB at 108 Hz, with the most significant noise reduction effect.

[0122] According to the air conditioner outdoor unit 100 and HVAC equipment 1000 provided in the embodiments of this application, the compressor integrated system 10 of the embodiments of this application is adopted. By integrating the gas-liquid separator and / or low-pressure tank into a housing 1, and setting the compressor body 2 inside the housing 1, the structure is compact and occupies little space. The housing 1 can also shield some of the noise generated by the compressor body 2 during operation. At the same time, the top 13 of the housing 1 is provided with an exhaust port 11 and a return port 12 distributed at intervals. The exhaust pipe 3 of the compressor body 2 extends from the exhaust port 11. The first return pipe 4 of the compressor body 2 and the second return pipe 5 extending from the return port 12 are separately set and isolated from each other. The vibration generated by the compressor body 2 during operation can be dissipated by itself after being transmitted to the first return pipe 4, and will not be transmitted to the second return pipe 5 extending from the housing 1. This can effectively suppress the low-frequency vibration generated by the return pipe, reduce noise, and improve the user's hearing.

[0123] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0124] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A compressor integrated system, characterized in that, include: The housing has a top end and a bottom end along its height direction, and the top end is provided with an exhaust port and an exhaust port that are spaced apart. The compressor body is disposed within the housing, and the compressor body includes a tank and an exhaust port and a return port communicating with the tank; An exhaust pipe, one end of which is connected to the exhaust connector, and the other end of which extends out from the exhaust port; as well as A first return air pipe and a second return air pipe are provided. One end of the first return air pipe is connected to the return air connector, and the other end of the first return air pipe extends toward the top. One end of the second return air pipe extends out from the return air port, and the other end of the second return air pipe is located inside the housing and is spaced apart from the end of the first return air pipe away from the return air connector. In the circumferential direction of the housing, the end of the second return air pipe located inside the housing is offset from the end of the first return air pipe away from the return air connector by a predetermined angle.

2. The compressor integrated system according to claim 1, characterized in that, The second return air pipe is either a straight pipe or a curved pipe.

3. The compressor integrated system according to claim 1, characterized in that, The second return air pipe includes a first branch pipe, a second branch pipe, and a transition pipe connecting the first branch pipe and the second branch pipe. The axis of the first branch pipe is set at an angle to the axis of the second branch pipe. One end of the first branch pipe extends out from the return air port. The transition pipe and the second branch pipe are both located inside the housing, and one end of the second branch pipe extends toward the side wall of the housing.

4. The compressor integrated system according to any one of claims 1 to 3, characterized in that, The axial direction of the tank is parallel to the height direction of the shell, the return air connector is located on the side of the tank facing the bottom end, and the exhaust connector is located on the top of the tank facing the top end.

5. The compressor integrated system according to claim 4, characterized in that, The end of the first return gas pipe away from the return gas connector is lower than the top of the tank or flush with the top of the tank.

6. The compressor integrated system according to claim 4, characterized in that, The compressor body includes cylinder assemblies disposed within the tank. The number of cylinder assemblies is one or two, and the number of cylinder assemblies is the same as the number of return air connectors.

7. The compressor integrated system according to claim 6, characterized in that, The number of return gas connectors is two, and the two return gas connectors are arranged at intervals in the height direction on the side of the tank. One first return gas pipe is connected to both return gas connectors.

8. The compressor integrated system according to claim 6, characterized in that, The number of the return gas connector and the number of the first return gas pipe are two. The two return gas connectors are arranged at intervals in the height direction on the side of the tank. The two first return gas pipes are arranged in parallel. One first return gas pipe is connected to one return gas connector.

9. The compressor integrated system according to claim 4, characterized in that, The side of the tank is also provided with a connector, which is connected to the end of the first return gas pipe away from the return gas connector.

10. The compressor integrated system according to claim 1, characterized in that, The exhaust pipe can be a straight pipe or a curved pipe.

11. The compressor integrated system according to claim 4, characterized in that, The exhaust pipe includes multiple pipe segments connected sequentially in the space between the outer wall of the tank and the inner wall of the shell. Adjacent pipe segments are bent at a preset angle, one of the pipe segments is connected to the exhaust connector, and the other pipe segment extends out from the exhaust port.

12. The compressor integrated system according to claim 1, characterized in that, The exhaust pipe is any one of copper pipe, rubber hose, stainless steel braided mesh pipe, or a combination of at least two of them.

13. The compressor integrated system according to claim 1, characterized in that, A muffler communicating with the exhaust port is also provided on the outer side of the top of the housing. One end of the exhaust pipe extends from the exhaust port to the muffler, and an additional exhaust pipe is provided at the end of the muffler away from the exhaust port.

14. The compressor integrated system according to claim 1, characterized in that, An oil separator communicating with the exhaust port is also provided on the outer side of the top of the housing. One end of the exhaust pipe extends from the exhaust port and bends toward the side wall of the oil separator. An additional exhaust pipe is provided at the end of the oil separator away from the exhaust port.

15. The compressor integrated system according to claim 1, characterized in that, The compressor integrated system further includes a first vibration damping component disposed within the housing. The axial direction of the tank is parallel to the height direction of the housing, and the compressor body is suspended within the housing via the first vibration damping component.

16. The compressor integrated system according to claim 15, characterized in that, The first vibration damping component is disposed between the upper end of the tank near the top and the inner wall of the shell.

17. The compressor integrated system according to claim 15, characterized in that, The first vibration damping component is disposed between the middle of the tank and the inner wall of the shell.

18. The compressor integrated system according to claim 15, characterized in that, The first vibration damping component is disposed between the lower end of the tank near the bottom and the inner wall of the shell.

19. The compressor integrated system according to claim 1, characterized in that, The compressor integrated system further includes a first vibration damping component disposed within the housing. The axial direction of the tank is parallel to the height direction of the housing. The first vibration damping component is disposed between the bottom of the tank facing the bottom end and the inner wall of the housing.

20. The compressor integrated system according to any one of claims 15 to 18, characterized in that, The shell includes a first segment, a second segment, and a step portion connecting the first segment and the second segment arranged sequentially along its height direction. The outer diameter of the first segment is larger than the outer diameter of the second segment, and the first vibration damping component is disposed between the step portion and the tank body.

21. The compressor integrated system according to claim 20, characterized in that, The shell includes a first subshell and a second subshell that are connected to each other along its height direction. The first subshell includes the first segment, the stepped portion, and a portion of the second segment. The second subshell includes another portion of the second segment.

22. The compressor integrated system according to any one of claims 15 to 19, characterized in that, The housing includes a cover, a cylindrical shell, and a bottom shell arranged sequentially along its height. The cylindrical shell is a cylindrical body. The cover is fitted onto one end of the cylindrical shell, and the bottom shell is fitted onto the other end of the cylindrical shell. The cover is provided with the exhaust port and the return port spaced apart. The first vibration damping component is disposed between the inner wall of the cylindrical shell and the outer wall of the tank.

23. The compressor integrated system according to claim 4, characterized in that, An oil sump is provided at the bottom of the housing. The compressor integrated system also includes an oil return capillary tube, one end of which is connected to the first gas return pipe, and the other end of which extends into the oil sump.

24. The compressor integrated system according to claim 4, characterized in that, The top of the housing is provided with a connector joint, and the top of the tank is provided with a terminal block. The terminal block is electrically connected to the connector joint via an adapter wire.

25. An outdoor unit for an air conditioner, characterized in that, Includes the compressor integrated system as described in any one of claims 1-24.

26. The outdoor unit of the air conditioner according to claim 25, characterized in that, The outdoor unit of the air conditioner also includes a chassis and a second vibration damping component. The compressor integrated system is mounted on the chassis, and the second vibration damping component is disposed between the chassis and the housing of the compressor integrated system.

27. A heating, ventilation, and air conditioning (HVAC) device, characterized in that, It includes an indoor air conditioning unit and an outdoor air conditioning unit as described in claim 25 or 26, wherein the outdoor air conditioning unit is connected to the indoor air conditioning unit via a pipe.

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