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

Abstract

The invention belongs to the technical field of refrigeration, and particularly relates to a compressor integrated system, an air conditioner outdoor unit and heating and ventilation equipment, the compressor integrated system comprises a shell, a compressor, a compressor, a compressor, a compressor, a compressor and a controller, the compressor body is arranged in the shell, the compressor body comprises a tank body and an exhaust connector communicated with the tank body, and a gas-liquid separation space is formed between the tank body and the shell; one end of the first exhaust pipe is connected with the exhaust connector, the other end of the first exhaust pipe extends out of the exhaust port, and the first exhaust pipe is provided with a vibration reduction structure. Vibration stress borne by the exhaust pipe can be effectively reduced, the service life of the exhaust pipe is prolonged, and energy consumption of the compressor body is reduced.

Description

Technical Field

[0001] The present application relates to the field of refrigeration technology, and more specifically, to a compressor integration system, an air-conditioning outdoor unit, and a heating and ventilation equipment. Background Art

[0002] In related technologies, the compressor system of an air conditioner outdoor unit includes a compressor, a low-pressure tank, a gas-liquid separator, and connecting piping. Due to the unbalanced mass of the compressor rotor, the inertial force and moment of inertia caused by high-speed rotation during operation cause vibration in the compressor. The compressor's exhaust pipe, typically a rigid metal pipe, is subject to significant vibration stress during operation, shortening its service life. Summary of the Invention

[0003] The purpose of this application is to provide a compressor integrated system, an air-conditioning outdoor unit and HVAC equipment, which can effectively reduce the vibration stress on the exhaust pipe, increase the service life of the exhaust pipe, and reduce the energy consumption of the compressor body.

[0004] The first aspect of the present application proposes a compressor integrated system, comprising: a shell having relative top and bottom ends along its own height direction, and an exhaust port is provided at the top; a compressor body, arranged in the shell, the compressor body including a tank body and an exhaust joint connected to the tank body, and a gas-liquid separation space is formed between the tank body and the shell; and a first exhaust pipe, one end of the first exhaust pipe is connected to the exhaust joint, and the other end of the first exhaust pipe extends from the exhaust port, wherein the first exhaust pipe is provided with a vibration damping structure.

[0005] According to the compressor integrated system provided in the embodiment of the present application, by setting the compressor body in a shell that can be used as a gas-liquid separator, and at least part of the first exhaust pipe is set as a flexible pipe, the vibration stress to which the first exhaust pipe is subjected during the operation of the compressor can be dissipated, thereby improving the service life of the first exhaust pipe. Even if the first exhaust pipe leaks after long-term use, the leaked gaseous refrigerant will remain in the shell and be absorbed into the compressor body for continued circulation, which is beneficial to reducing the energy consumption of the compressor body.

[0006] In addition, the compressor integration system according to the present application may also have the following additional technical features:

[0007] In some embodiments of the present application, at least a portion of the first exhaust pipe is a metal braided mesh hose.

[0008] In some embodiments of the present application, the first exhaust pipe is a rubber hose.

[0009] In some embodiments of the present application, an exhaust connector is provided at the top of the tank body toward the top end, and the first exhaust pipe includes a plurality of pipe sections connected in sequence in the space between the outer wall of the tank body and the inner wall of the shell, and two adjacent pipe sections are transitionally connected via a bending section, one of the pipe sections is connected to the exhaust connector, and the other pipe section extends from the exhaust port.

[0010] In some embodiments of the present application, the first exhaust pipe is a copper pipe or a stainless steel pipe.

[0011] In some embodiments of the present application, among the multiple pipe segments, a portion of the pipe segments are copper pipes or stainless steel pipes, and the remaining portion of the pipe segments are metal braided mesh hoses.

[0012] In some embodiments of the present application, at least a portion of the pipe section or at least a portion of the bent section of the first exhaust pipe is made of stainless steel, wherein the stainless steel includes at least copper.

[0013] In some embodiments of the present application, the composition of the stainless steel includes at least copper and nickel, and the mass percentages of copper and nickel are respectively: nickel: 9% to 11%, and copper: 2% to 4%.

[0014] In some embodiments of the present application, a silencer chamber covering the exhaust port is further provided at the top end of the shell, and a second exhaust pipe is provided at one end of the silencer chamber away from the exhaust port.

[0015] In some embodiments of the present application, an outlet is provided at one end of the muffler chamber away from the exhaust port, the second exhaust pipe passes through the outlet, and the orthographic projection of the outlet on the end face of the top does not overlap with the exhaust port.

[0016] In some embodiments of the present application, an oil separator is further provided on the outer side of the top end of the shell, the end of the first exhaust pipe extending from the exhaust port is bent toward the side wall of the oil separator, and a second exhaust pipe is provided on the end of the oil separator away from the exhaust port.

[0017] In some embodiments of the present application, a through hole adjacent to the exhaust port is further provided at the top end of the shell, and the oil separator is connected to the inner cavity of the shell through the through hole.

[0018] In some embodiments of the present application, the compressor integrated system also includes a first return air pipe and a second return air pipe, a return air port is also provided at the top of the shell, and the compressor body also includes a return air connector connected to the tank body; one end of the first return air pipe is connected to the return air connector, the other end of the first return air pipe extends toward the top, one end of the second return air pipe extends from the return air port, and the other end of the second return air pipe is located in the gas-liquid separation space, and is spaced apart from the end of the first return air pipe away from the return air connector.

[0019] In some embodiments of the present application, an oil pool is provided at the bottom end of the shell, and the compressor integrated system also includes an oil return capillary, one end of the oil return capillary is connected to the first return air pipe, and the other end of the oil return capillary extends into the oil.

[0020] A second aspect of the present application provides an air-conditioning outdoor unit, comprising a compressor integrated system according to an embodiment of the present application.

[0021] The third aspect of the present application provides a HVAC device, comprising an air-conditioning indoor unit and an air-conditioning outdoor unit according to an embodiment of the present application, wherein the air-conditioning outdoor unit is connected to the air-conditioning indoor unit via a pipeline.

[0022] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. Throughout the drawings, the same reference numerals are used to denote the same components.

[0024] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. Throughout the drawings, the same reference numerals are used to denote the same components.

[0025] Figure 1 This is a structural diagram of a compressor integration system according to an embodiment of the present application;

[0026] Figure 2 for Figure 1 A partial cross-sectional view of the compressor integration system is shown;

[0027] Figure 3 for Figure 1 A schematic structural diagram of an exhaust pipe of a compressor integrated system is shown;

[0028] Figure 4 for Figure 1 A schematic structural diagram of another exhaust pipe of the compressor integrated system shown;

[0029] Figure 5 This is a structural diagram of a compressor integration system according to another embodiment of the present application;

[0030] Figure 6 for Figure 5 A partial cross-sectional view of the compressor integration system is shown;

[0031] Figure 7 for Figure 5 A top view of the compressor integrated system is shown;

[0032] Figure 8 This is a structural diagram of a compressor integration system according to another embodiment of the present application;

[0033] Figure 9 for Figure 8 A partial cross-sectional view of the compressor integration system is shown;

[0034] Figure 10 This is a schematic structural diagram of an air-conditioning outdoor unit according to an embodiment of the present application;

[0035] Figure 11 This is a schematic diagram of the electrical structure of the HVAC equipment in an embodiment of the present application.

[0036] The reference numerals in the accompanying drawings represent the following:

[0037] 1000. HVAC equipment;

[0038] 100, air conditioner outdoor unit; 10, compressor integrated system; 20, chassis; 40, outdoor heat exchanger; 50, fan; 200, air conditioner indoor unit; 210, indoor heat exchanger;

[0039] 1. Shell; 11. Exhaust port; 12. Air return port; 13. Top end; 14. Bottom end; 15. Muffler chamber; 151. Outlet; 16. Oil separator; 17. Connector joint; 18. Through hole; 19. Oil sump;

[0040] 2. Compressor body; 21. Tank body; 22. Exhaust connector; 23. Return air connector; 24. Connector;

[0041] 3. First exhaust pipe; 31. First pipe section; 32. Second pipe section; 33. Third pipe section; 34. Fourth pipe section; 35. Fifth pipe section;

[0042] 4. First air return pipe; 5. Second air return pipe; 6. Second exhaust pipe; 7. Oil return capillary;

[0043] 8. Four-way valve; 81. First valve port; 82. Second valve port; 83. Third valve port; 84. Fourth valve port. DETAILED DESCRIPTION

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

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

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

[0047] For ease of description, spatially relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," and the like. Such spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "below" or "below" another element or feature would then be oriented as "above" or "above" another element or feature. Thus, the example term "below" can include both above and below orientations. The device may be otherwise oriented (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein are interpreted accordingly.

[0048] In related technologies, the compressor system of an air conditioner outdoor unit includes a compressor, a low-pressure tank, a gas-liquid separator, and connecting piping. Due to the unbalanced mass of the compressor rotor, the inertial force and moment of inertia caused by high-speed rotation during operation cause vibration in the compressor. The compressor's exhaust pipe, typically a rigid metal pipe, is subject to significant vibration stress during operation, shortening its service life.

[0049] To this end, an embodiment of the present application provides a compressor integration system 10, which can effectively reduce the vibration stress on the exhaust pipe, increase the service life of the exhaust pipe, and reduce the energy consumption of the compressor body.

[0050] Figure 1 This is a structural diagram of a compressor integration system according to an embodiment of the present application. Figure 2 for Figure 1 A partial cross-sectional view of the compressor integration system is shown.

[0051] See Figure 1 and Figure 2 A compressor integrated system 10 provided in an embodiment of the present application includes a shell 1, a compressor body 2 and a first exhaust pipe 3.

[0052] The housing 1 has a top end 13 and a bottom end 14 opposite to each other along its height, and the top end 13 is provided with an exhaust port 11. The housing 1 may include a cylindrical body, a cover shell, and a bottom shell that are separately provided. The top end 13 may be the end surface of the cover shell that covers the cylindrical body, and the bottom end 14 may be the bottom surface of the bottom shell that covers the cylindrical body. The cylindrical body and the cover shell may also be an integral structure, with the top end 13 being the top surface of the cylindrical body. The cylindrical body and the bottom shell may also be an integral structure, with the bottom end 14 being the bottom surface of the cylindrical body.

[0053] The compressor body 2 is disposed within the housing 1 and includes a tank body 21 and an exhaust connector 22 connected to the tank body 21. A gas-liquid separation space is formed between the tank body 21 and the housing 1. One end of a first exhaust pipe 3 is connected to the exhaust connector 22, and the other end of the first exhaust pipe 3 extends from the exhaust port 11. The first exhaust pipe 3 is provided with a vibration damping structure.

[0054] The low-pressure tank in the related art is generally used to store a certain volume of refrigerant coolant, with a volume of about 2L to 4L, and the gas-liquid separator is used to separate the gaseous refrigerant and the liquid refrigerant in the gaseous mixed refrigerant, with a volume of about 1L. In this embodiment, the shell 1 can integrate the gas-liquid separator and the low-pressure tank into one, and the compressor body 2 is placed in the shell 1, and the volume of the shell 1 is about 4L to 5L. Alternatively, the low-pressure tank is omitted, and the shell 1 is only used as the gas-liquid separator, with a volume greater than 1L and less than 5L, or the size of the volume depends on the usage scenario, as long as the shell 1 can accommodate the compressor body 2. Therefore, the embodiment of the present application integrates the compressor body 2, the gas-liquid separator, the low-pressure tank and related pipelines into the shell 1, or integrates the compressor body 2, the gas-liquid separator and related pipelines into the shell 1, and a gas-liquid separation space is formed between the tank body 21 of the compressor body 2 and the shell 1. The shell 1 can shield most of the noise generated by the compressor body 2 during operation, and the structure is compact and takes up little space.

[0055] Furthermore, the compressor body 2 also includes a compression element disposed within the tank 21. The compression element compresses gas to produce high-temperature, high-pressure gaseous refrigerant, which is then discharged to an external circulation pipeline through the first exhaust pipe 3. Due to the unbalanced mass of the compression element's rotor, the inertial force and moment of inertia generated by the high-speed rotation of the rotor when compressing gas will cause vibrations in the compressor body 2, thereby subjecting the first exhaust pipe 3 to significant vibration stress. Because the first exhaust pipe 3 is provided with a vibration-damping structure, which can be a flexible tube formed of a flexible material, or the first exhaust pipe 3 itself has a certain degree of flexibility, or a combination of flexible materials and structures, the vibration-damping structure of the first exhaust pipe 3 can dissipate most of the vibration stress applied to the first exhaust pipe 3, thereby extending the service life of the first exhaust pipe 3. Even if the first exhaust pipe 3 leaks to a certain extent after long-term use, the leaked gaseous refrigerant will remain in the housing 1 and be absorbed into the compressor body 2 for continued circulation, thereby reducing the energy consumption of the compressor body 2 and further extending the service life of the first exhaust pipe 3.

[0056] In some embodiments, at least a portion of the first exhaust pipe 3 is a metal braided mesh hose.

[0057] The structural form of the first exhaust pipe 3 is not limited, and it can be a straight pipe or a curved pipe. The position where the first exhaust pipe 3 is connected to the exhaust joint 22 or other pipelines can be a rigid tube, and the rest is a metal braided mesh hose. The first exhaust pipe 3 can also be a metal braided mesh hose as a whole. The metal braided mesh can be woven into a mesh structure by metal wires of stainless steel, aluminum or other alloys. It combines the characteristics of metal materials with the advantages of braided structures, and has excellent high temperature resistance and corrosion resistance. Through a multi-directional weaving process (such as hexagonal mesh), while maintaining compressive strength (MPa level), it has significant flexibility. Metal wires with high elastic modulus can absorb energy through slight deformation during vibration, reducing the risk of weld fatigue. After actual product verification, the metal braided mesh hose is still intact after 100,000 vibration cycles.

[0058] In some embodiments, the first exhaust pipe 3 is a rubber hose.

[0059] The first exhaust pipe 3 is a rubber hose, and its material can include nitrile rubber (NBR), ethylene propylene diene monomer (EPDM), fluororubber (FKM), chloroprene rubber (CR), etc., which is light in weight, flexible, and can absorb vibration energy well. Among them, nitrile rubber and fluororubber are excellent in oil resistance as the first exhaust pipe 3, but the cost is relatively high; and EPDM and chloroprene rubber are not as oil resistant as the former two due to their own performance limitations, and there may be a risk of leakage in long-term use, and the cost is relatively low. Since in the present embodiment, the compressor body 2 and the first exhaust pipe 3 are both placed in the shell 1, even if the first exhaust pipe 3 has the problem of refrigerant leakage, the refrigerant can also be retained in the shell 1 and sucked into the tank 21 of the compressor body 2 by the return pipe, and continue to be recycled, without causing waste. In actual use, suitable rubber materials can be selected according to the application scenario to eliminate the influence of vibration stress on the first exhaust pipe 3 and improve the service life of the first exhaust pipe 3.

[0060] Figure 3 for Figure 1 A schematic diagram of the structure of an exhaust pipe of a compressor integrated system is shown. Figure 4 for Figure 1 The diagram shows the structure of another exhaust pipe of the compressor integration system.

[0061] In some embodiments, the exhaust connector 22 is arranged at the top of the tank body 21 toward the top end 13, and the first exhaust pipe 3 includes multiple pipe sections connected in sequence in the space between the outer wall of the tank body 21 and the inner wall of the shell 1, and the adjacent two pipe sections are transitionally connected via a bending section, one of the pipe sections is connected to the exhaust connector 22, and the other pipe section extends from the exhaust port 11.

[0062] like Figure 3As shown, the first exhaust pipe 3 exemplarily comprises a first pipe segment 31, a second pipe segment 32, a third pipe segment 33, a fourth pipe segment 34, and a fifth pipe segment 35, which are connected in sequence. Adjacent pipe segments are connected by 90° bends. The first pipe segment 31 extends from the exhaust connector 22 to the outer wall of the tank 21 by a first length. The second pipe segment 32 bends 90° from the first pipe segment 31 and extends toward the bottom end 14 by a second length. The third pipe segment 33 bends 90° from the second pipe segment 32 and extends parallel to the bottom end 14 by a third length. The fourth pipe segment 34 bends 90° from the third pipe segment 33 and extends toward the top end 13 by a fourth length. It then bends again toward the exhaust connector 22 and extends by a fifth length. The fifth pipe segment 35 bends 90° from the fourth pipe segment 34 and ultimately extends out of the exhaust port 11. As a result, the first exhaust pipe 3 has a high degree of structural flexibility. The bends between the pipe segments form a vibration-damping structure that dissipates vibrations experienced by the first exhaust pipe 3, reduces vibration stress, and improves its service life.

[0063] like Figure 4 As shown, the first exhaust pipe 3 exemplarily comprises a first pipe section 31, a second pipe section 32, a third pipe section 33, and a fourth pipe section 34, which are connected in sequence. Adjacent pipe sections are bent 90° between each other. The first pipe section 31 extends from the exhaust connector 22 to the outer wall of the tank 21 by a first length. The second pipe section 32 bends 90° from the first pipe section 31 and extends by a second length toward the bottom end 14. The third pipe section 33 bends 90° from the second pipe section 32 and extends by a third length in a direction parallel to the bottom end 14. The fourth pipe section 34 bends 90° from the third pipe section 33 and extends by a fourth length toward the top end 13, ultimately extending out of the exhaust port 11. As a result, the first exhaust pipe 3 has a high degree of structural flexibility. The bends between the pipe sections form a vibration-damping structure that dissipates vibrations experienced by the first exhaust pipe 3, reduces vibration stress, and improves its service life.

[0064] In some embodiments, the first exhaust pipe 3 is a copper pipe or a stainless steel pipe.

[0065] like Figure 3 and Figure 4 As shown, the first exhaust pipe 3 is a bent tube with a flexible vibration damping structure. Made of metal, this reduces vibration stress while maintaining structural strength to prevent scratches during transportation or use, which could affect the pipe's service life. For example, the first exhaust pipe 3 can be a copper tube, which has excellent welding properties and facilitates connection to other pipelines. Alternatively, the first exhaust pipe 3 can be a stainless steel tube, with copper sections installed at both ends for welding to other pipelines.

[0066] In some embodiments, among the multiple pipe segments, a portion of the pipe segments are copper pipes or stainless steel pipes, and the remaining portion of the pipe segments are metal braided mesh hoses.

[0067] like Figure 3 As shown, the first exhaust pipe 3 is a curved pipe with a flexible vibration-damping structure, and can be made of a combination of various materials. Because the first pipe segment 31 and the fifth pipe segment 35 are both directly or indirectly connected to the compressor body 2, the compressor body 2 experiences significant tangential vibration during operation, subjecting the first pipe segment 31 and the fifth pipe segment 35 to significant vibration stress. Therefore, the first and fifth pipe segments 31 and 35 can be constructed of copper or stainless steel tubes to enhance structural strength. The remaining second, third, and fourth pipe segments 32, 33, and 34 are relatively free pipe segments, each constructed as a metal braided mesh hose, which significantly reduces vibration stress.

[0068] like Figure 4 As shown, due to the large tangential vibration of the compressor body 2 during operation, the second pipe section 32 and the fourth pipe section 34 are arranged parallel to the axial direction of the compressor body 2, resulting in large vibration stress on the second pipe section 32 and the fourth pipe section 34. Therefore, they can be configured as metal braided mesh hoses to greatly reduce vibration stress. The first pipe section 31 and the third pipe section 33 are arranged parallel to the bottom end 14 and are subject to less vibration stress. Copper tubes or stainless steel tubes can be used to improve structural strength.

[0069] Since the cost of the metal braided mesh hose is higher than that of the ordinary metal tube, this embodiment adopts a combination of the metal braided mesh hose and the ordinary metal tube, which can not only reduce the vibration stress of the first exhaust pipe 3, but also save production costs.

[0070] In some embodiments, at least a portion of the pipe section or at least a portion of the bent section of the first exhaust pipe 3 is made of stainless steel, wherein the stainless steel comprises at least copper.

[0071] At least part of the pipe section or at least part of the bent section of the first exhaust pipe 3 is made of stainless steel. Copper is added to the stainless steel, which makes it less likely for martensitic phase transformation to occur during operation. This can reduce the yield strength of the first exhaust pipe and increase the elongation, thereby achieving stronger corrosion resistance and stress-strain resistance. At the same time, the minimum bending radius of the first exhaust pipe is reduced, and the stainless steel material is used in a compact and narrow gas-liquid separation space, which is conducive to setting a vibration-damping structure such as a bend on the pipeline, thereby improving the vibration-damping performance of the first exhaust pipe 3.

[0072] In some embodiments, the stainless steel comprises at least copper and nickel, and the mass percentages of copper and nickel are: nickel: 9% to 11%, copper: 2% to 4%.

[0073] At least a portion of the pipe section or at least a portion of the bent section of the first exhaust pipe 3 is made of stainless steel, which includes 2% to 4% by mass of copper and 9% to 11% by mass of nickel. Nickel enables stainless steel to maintain good ductility and toughness at low temperatures, helping to improve its corrosion resistance, particularly in chloride environments. It improves its cold working properties, making it easier to form, and also enhances its high-temperature oxidation resistance and sulfidation resistance. Nickel is an important element for stabilizing the austenite structure. The combination of nickel and copper helps form and stabilize the austenite phase, which is the basis for stainless steel to achieve good overall performance. It also facilitates the installation of vibration-damping structures such as elbows on the pipe, further improving the vibration-damping performance of the first exhaust pipe 3.

[0074] Figure 5 This is a structural diagram of a compressor integration system according to another embodiment of the present application. Figure 6 for Figure 5 A partial cross-sectional view of the compressor integration system is shown.

[0075] In some embodiments, a muffler chamber 15 communicating with the exhaust port 11 is further provided on the outside of the top end 13 of the housing 1 , and a second exhaust pipe 6 is provided at one end of the muffler chamber 15 away from the exhaust port 11 .

[0076] like Figure 5 and Figure 6 As shown, the top 13 of the shell 1 is provided with an exhaust port 11, and the outside of the top 13 is also provided with a silencer chamber 15 connected to the exhaust port 11. The silencer chamber 15 can be directly welded to the top 13 of the shell 1. During operation, the compressor body 2 compresses the gas to perform work, generating a high-temperature and high-pressure gaseous refrigerant. The high-temperature and high-pressure gaseous refrigerant generates a large exhaust noise when flowing through the exhaust pipe 3. The high-temperature and high-pressure gaseous refrigerant enters the silencer chamber 15 through the first exhaust pipe 3. The high-temperature and high-pressure gaseous refrigerant is then discharged from the second exhaust pipe 6 provided on the silencer chamber 15 to other circulation pipelines and enters the subsequent cooling or heating cycle. The silencer chamber 15 can change the propagation path and energy distribution of the sound wave through acoustic intervention, thereby achieving noise reduction. For example, the silencer chamber 15 can achieve reflection, absorption and interference of sound waves through structural design (such as sudden cross-section, multi-cavity) and material selection (such as sound-absorbing fiber, micro-perforated plate), thereby systematically reducing the noise level of the compressor exhaust. In practical applications, the design can be comprehensively optimized based on the noise spectrum, air flow velocity and environmental conditions.

[0077] Figure 7 for Figure 5 A top view of the compressor integration system is shown.

[0078] In some embodiments, an outlet 151 is provided at one end of the muffler chamber 15 away from the exhaust port 11 , and the second exhaust pipe 6 passes through the outlet 151 . The orthographic projection of the outlet 151 on the end surface of the top end 13 does not overlap with the exhaust port 11 .

[0079] like Figure 7 As shown, the second exhaust pipe 6 passes through the outlet 151 of the silencer chamber 15, which can be used as a noise outlet and also as an exhaust pipe. The positive projection of the outlet 151 on the end face of the top 13 does not overlap with the exhaust port 11, so that the gaseous refrigerant entering the silencer chamber 15 can be rotated at a certain angle for noise reduction before being discharged from the second exhaust pipe 6, thereby improving the silencer effect of the silencer chamber 15.

[0080] Figure 8 This is a structural diagram of a compressor integration system according to another embodiment of the present application. Figure 9 for Figure 8 A partial cross-sectional view of the compressor integration system is shown.

[0081] In some embodiments, an oil separator 16 is further provided on the outside of the top end 13 of the shell 1, and the end of the first exhaust pipe 3 extending from the exhaust port 11 is bent toward the side wall of the oil separator 16, and a second exhaust pipe 6 is provided at the end of the oil separator 16 away from the exhaust port 11.

[0082] Since the first exhaust pipe 3 will inevitably carry away the oil on the compression component when discharging the high-temperature and high-pressure gaseous refrigerant, resulting in a decrease in the system's refrigeration capacity, it is necessary to separate the oil from the gaseous refrigerant through an oil separator 16. To this end, in this embodiment, an oil separator 16 is set on the outside of the top 13 of the shell 1, and the end of the first exhaust pipe 3 extending from the exhaust port 11 is bent toward the side wall of the oil separator 16, so that the oil-gas mixture changes from vertical movement to tangential movement along the side wall of the oil separator 16 after entering the oil separator 16, thereby quickly forming a vortex in the oil separator 16. Under the action of centrifugal force, the oil with a higher density will be thrown to the side wall, while the gaseous refrigerant with a lower density will be discharged outward along the second exhaust pipe 6, thereby achieving the separation of the oil and gaseous refrigerant. It can be understood that the oil separator 16 can also absorb part of the exhaust noise, achieving a certain degree of noise reduction effect.

[0083] In some embodiments, the top end 13 of the housing 1 is further provided with a through hole 18 adjacent to the exhaust port 11 , and the oil separator 16 is communicated with the inner cavity of the housing 1 through the through hole 18 .

[0084] like Figure 9As shown, the oil separator 16 can be directly welded to the top end 13 of the housing 1. The top end 13 of the housing 1 is also provided with a through hole 18. The orthographic projection of the oil separator 16 on the end surface of the top end 13 covers the exhaust port 11 and the through hole 18, so that the oil separator 16 can communicate with the inner cavity of the housing 1 through the through hole 18. When a large amount of oil accumulates on the side wall of the oil separator 16, it can flow to the bottom of the oil separator 16, that is, the outside of the top end 13 of the housing 1, under the action of its own gravity, and then enter the inner cavity of the housing 1 through the through hole 18. The bottom end 14 of the housing 1 is provided with an oil pool 19. The oil can be collected in the oil pool 19 and can be recovered into the compressor body 2 through the oil return capillary 7 for continued use.

[0085] In some embodiments, the compressor integrated system 10 also includes a first return air pipe 4 and a second return air pipe 5, and the top 13 of the shell 1 is also provided with a return air port 12, and the compressor body 2 also includes a return air connector 23 connected to the tank body 21; one end of the first return air pipe 4 is connected to the return air connector 23, and the other end of the first return air pipe 4 extends toward the top 13, and one end of the second return air pipe 5 extends out from the return air port 12, and the other end of the second return air pipe 5 is located in the gas-liquid separation space 1, and is spaced apart from the end of the first return air pipe 4 away from the return air connector 23.

[0086] like Figures 1 to 9 As shown, the top end 13 of the shell 1 is provided with an exhaust port 11 and an air return port 12 that are spaced apart. The low-temperature gas-liquid mixed refrigerant entering from the second air return pipe 5 of the air return port 12 undergoes gas-liquid separation under the action of 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 shell 1, while the gaseous refrigerant remains on the side of the top end 13 of the shell 1. The gaseous refrigerant is sucked into the compressor body 2 through the negative pressure of the first air return pipe 4 for compression and work, generating 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 first exhaust pipe 3 to the muffler chamber 15 or the oil separator 16 for subsequent cooling or heating cycles.

[0087] 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 connector 23, and the outlet is connected to the first exhaust pipe 3. 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 first exhaust pipe 3. One compression chamber and one rotor can be provided in the tank body 21, and accordingly, the number of the return air connector 23 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. Accordingly, the number of the return air connector 23 is two. For a compressor body 2 with two rotors, the two rotors operate alternately in their respective compression chambers, so that the gaseous refrigerant can be continuously compressed, thereby improving the energy efficiency of the compressor body 2.

[0088] In one example, if Figure 3 As shown, there are two return air connectors 23, spaced apart in the height direction along the side of the tank body 21. The first return air pipe 4 is arranged in an "F" shape, with one first return air pipe 4 connected to both return air connectors 23. The low-temperature gaseous refrigerant drawn from the first return air pipe 4 simultaneously enters the two compression chambers within the compressor body 2 through the two return air connectors 23. The two compression chambers alternately compress the gaseous refrigerant, improving the energy efficiency of the compressor body 2.

[0089] In another example, Figure 6 As shown, there are two return air connectors 23, spaced apart in the height direction on the side of the tank body 21. One end of a first return air pipe 4 is connected to both return air connectors 23. The other end of the first return air pipe 4 extends toward the bottom end 14, bypasses the bottom of the tank body 21, and then bends and extends toward the top end 13. The low-temperature gaseous refrigerant drawn in from the first return air pipe 4 simultaneously enters the two compression chambers within the compressor body 2 through the two return air connectors 23. The two compression chambers alternately compress the gaseous refrigerant, improving the energy efficiency of the compressor body 2.

[0090] Optionally, both the first air return pipe 4 and the second air return pipe 5 are stainless steel pipes with high hardness and strength. Since the first air return pipe 4 and the second air return pipe 5 are separately arranged and isolated from each other, the inertial force and inertial moment of the high-speed rotation of the compressor body 2 during operation cause the compressor body 2 to vibrate, and the vibration is transmitted to the first air return pipe 4, so that the vibration between the compressor body 2 and the first air return pipe 4 gradually dissipates and attenuates in the shell 1, and is not transmitted to the second air return pipe 5 connected to the shell 1. At the same time, the shell 1 also shields the noise generated by the first air return pipe 4 during operation, thereby greatly reducing low-frequency vibration and noise, and improving the user's hearing experience.

[0091] In some embodiments, the end of the second air return pipe 5 located within the gas-liquid separation space 1 is staggered with the end of the first air return pipe 4 away from the return air connector 23 in the circumferential direction of the shell 1. The low-temperature gas-liquid mixed refrigerant entering the shell 1 through the second air return pipe 5 contains liquid refrigerant. The staggered arrangement, rather than the direct arrangement, between the end of the second air return pipe 5 located within the gas-liquid separation space 1 and the return air end of the first air return pipe 4 prevents the liquid refrigerant from entering the first air return pipe 4 from the return air end under the action of its own gravity, thereby reducing the possibility of liquid hammer problems in the compressor body 2.

[0092] For example, Figure 7 As shown, a first connecting line is formed between the end of the second air return pipe 5 located within the gas-liquid separation space 1 and the central axis of the housing 1, and a second connecting line is formed between the return end of the first air return pipe 4 and the central axis of the housing 1. The first and second connecting lines are arranged at a preset angle θ. The larger the preset angle θ, the greater the offset angle between the end of the second air return pipe 5 located within the gas-liquid separation space 1 and the return end of the first air return pipe 4. When the preset angle θ = 180°, the possibility of liquid hammer problems in the compressor body 2 is minimized.

[0093] In some embodiments, a connecting piece 24 is further provided on the side of the tank body 21 , and the connecting piece 24 is connected to an end of the first air return pipe 4 away from the air return joint 23 .

[0094] like Figure 2 and Figure 3 As shown, a connector 24 can be provided on the side of the tank body 21. One end of the connector 24 is connected to the side of the tank body 21, and the other end of the connector 24 is arranged around the outer periphery of the end of the first return air pipe 4 away from the return air joint 23 to reduce the vibration of the first return air pipe 4 and reduce noise. The shape of the connector 24 is not limited, as long as it can fix a section of the first return air pipe 4. One end of the connector 24 can be welded to the side of the tank body 21, and the other end of the connector 24 can also 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.

[0095] In some embodiments, an oil pool 19 is provided at the bottom end 14 of the shell 1, and the compressor integrated system 10 also includes an oil return capillary 7, one end of the oil return capillary 7 is connected to the first return air pipe 4, and the other end of the oil return capillary 7 extends into the oil pool 19.

[0096] like Figure 2 and Figure 6As shown, the bottom end 14 of the housing 1 is provided with an oil sump 19. The oil in the oil sump 19 is used to lubricate components such as the rotor of the compression element. When the compressor body 2 discharges high-temperature, high-pressure gaseous refrigerant, it inevitably carries away some misted oil, resulting in a reduction in the oil content within the compressor body 2. Excessive oil in the refrigerant circulation loop can reduce the system's cooling capacity. To address this, in this embodiment, an oil return capillary tube 7 is added to the compressor body 2. The diameter of the oil return capillary tube 7 is typically 0.5 mm to 1.5 mm. One end of the oil return capillary tube 7 is connected to the first gas return pipe 4, and the other end extends into the oil sump 19. In this way, the density of the oil in the gas-liquid mixed refrigerant entering from the second gas return pipe 5 is greater than that of the liquid refrigerant, which in turn is greater than that of the gaseous refrigerant. Therefore, the refrigerant will separate into layers of oil, liquid refrigerant, and gaseous refrigerant under the action of its own gravity, with the oil falling into the oil sump 19 at the bottom layer of the housing 1. The oil return capillary 7 can introduce the oil in the oil pool 19 into the compressor body 2 for oil replenishment, thereby realizing the recycling of the oil.

[0097] In some embodiments, the top end 13 of the housing 1 is further provided with a connector 17, and the compressor body 2 is electrically connected to the connector 17 via a switching wire. Figure 1 、 Figure 5 and Figure 8 As shown, the compressor body 2 is disposed within the housing 1. The rotor and other components within the compressor body 2 are driven by a motor. The motor's power supply and control signals are provided by an electronic control unit outside the housing 1. One end of the connector 17 is electrically connected to the electronic control unit via a wire, and the other end of the connector 17 is electrically connected to the motor via a transfer wire. The material of the transfer wire must meet characteristics such as oil resistance, refrigerant resistance, and high temperature resistance.

[0098] Figure 10 This is a structural diagram of an air-conditioning outdoor unit according to an embodiment of the present application. Figure 11 This is a schematic diagram of the electrical structure of the HVAC equipment in an embodiment of the present application.

[0099] See Figure 10 The present embodiment provides an air conditioner outdoor unit 100, comprising a compressor integrated system 10 according to the present embodiment. The air conditioner outdoor unit 100 further comprises a chassis 20 and an outdoor heat exchanger 40, a fan 50, a four-way valve 8, and a circulation loop disposed on the chassis 20. The compressor integrated system 10 is disposed on one side of the chassis 20.

[0100] See Figure 11 An embodiment of the present application provides a HVAC device 1000, including an air-conditioning indoor unit 200 and an air-conditioning outdoor unit 100 of an embodiment of the present application, and the air-conditioning outdoor unit 100 is connected to the air-conditioning indoor unit 200 through a pipeline.

[0101] The air conditioner indoor unit 200 is installed indoors, and the air conditioner outdoor unit 100 is installed outdoors. They are used for cooling or heating, and transport refrigerant through pipelines. The refrigerant exchanges heat with the indoor air and the outdoor air respectively. The air conditioner indoor unit 200 is used to transport cold air or hot air into the room to achieve the effect of cooling or heating.

[0102] like Figure 10 and Figure 11 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 first exhaust pipe 3 of the compressor body 2, the third valve port 83 is connected to the second return air 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.

[0103] Thus, the four-way valve 8 has two operating states: When the four-way valve 8 is de-energized, the HVAC equipment 1000 operates normally and enters the refrigeration cycle mode. In this state, the first valve port 81 is in communication with the second valve port 82, and the third valve port 83 is in communication with the fourth valve port 84, allowing the refrigerant to flow in a first direction within the circulation loop. After the refrigerant is discharged from the first exhaust pipe 3 of the compressor body 2, it flows through the four-way valve 8, sequentially to the outdoor heat exchanger 40 of the air conditioner outdoor unit 100 and the indoor heat exchanger 210 of the air conditioner outdoor unit 100. In this state, the outdoor heat exchanger 40 functions as a condenser, condensing the high-temperature, high-pressure refrigerant discharged from the compressor body 2. The fan 50 improves the heat exchange efficiency of the outdoor heat exchanger 40. The indoor heat exchanger 210 functions as an evaporator, exchanging heat between the low-temperature refrigerant and the indoor air, thereby delivering cold air to the room. The refrigerant then flows back to the compressor body 2 through the second return air pipe 5 and the first return air pipe 4.

[0104] When the four-way valve 8 is energized, the HVAC equipment 1000 enters a defrost cycle mode. At this point, the first valve port 81 is able to communicate with the fourth valve port 84, and the second valve port 82 is able to communicate with the third valve port 83. The refrigerant flows in a second direction within the circulation loop, which is opposite to the first direction. After being discharged from the first exhaust pipe 3 of the compressor body 2, the refrigerant flows sequentially through the four-way valve 8 to the indoor heat exchanger 210 and the outdoor heat exchanger 40. At this point, the indoor heat exchanger 210 functions as a condenser. The high-temperature, high-pressure refrigerant discharged from the first exhaust pipe 3 of the compressor body 2 exchanges heat with the indoor heat exchanger 210, thereby delivering warm air to the indoor space. The outdoor heat exchanger 40 functions as an evaporator. The refrigerant then flows back to the compressor body 2 through the second return air pipe 5 and the first return air pipe 4.

[0105] According to the air-conditioning outdoor unit 100 and HVAC equipment 1000 provided in the embodiments of the present application, the compressor integrated system 10 of each embodiment of the present application is adopted. By setting the compressor body 2 in a shell 1 that can be used as a gas-liquid separator, and setting the first exhaust pipe 3 as a flexible pipe, the vibration stress to which the first exhaust pipe 3 is subjected during the operation of the compressor can be dissipated, thereby improving the service life of the first exhaust pipe 3. Even if the first exhaust pipe 3 leaks after long-term use, the leaked gaseous refrigerant will remain in the shell 1 and be absorbed into the compressor body 2 for continued circulation, which is beneficial to reducing the energy consumption of the compressor body 2.

[0106] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0107] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A compressor integrated system, characterized in that: include: The housing has a top end and a bottom end opposite to each other along its height direction, and the top end is provided with an exhaust port; A compressor body is disposed in the housing, the compressor body comprising a tank body and an exhaust joint connected to the tank body, and a gas-liquid separation space is formed between the tank body and the housing; as well as A first exhaust pipe, one end of which is connected to the exhaust joint, and the other end of which extends from the exhaust port, wherein the first exhaust pipe is provided with a vibration damping structure.

2. The compressor integrated system according to claim 1, characterized in that: At least a portion of the first exhaust pipe is a metal braided mesh hose.

3. The compressor integrated system according to claim 1, characterized in that: The first exhaust pipe is a rubber hose.

4. The compressor integrated system according to claim 1, characterized in that: The exhaust joint is arranged at the top of the tank body facing the top end, and the first exhaust pipe includes a plurality of pipe sections connected in sequence in the space between the outer wall of the tank body and the inner wall of the shell, and two adjacent pipe sections are transitionally connected via a bending section, one of the pipe sections is connected to the exhaust joint, and the other pipe section extends from the exhaust port.

5. The compressor integrated system according to claim 4, characterized in that: The first exhaust pipe is a copper pipe or a stainless steel pipe.

6. The compressor integrated system according to claim 4, characterized in that: Among the multiple pipe sections, a portion of the pipe sections are copper pipes or stainless steel pipes, and the remaining portion of the pipe sections are metal braided mesh hoses.

7. The compressor integrated system according to claim 4, characterized in that: At least a portion of the pipe section or at least a portion of the bent section of the first exhaust pipe is made of stainless steel, wherein the stainless steel includes at least copper.

8. The compressor integrated system according to claim 7, characterized in that: The stainless steel comprises at least copper and nickel, and the mass percentages of copper and nickel are respectively: nickel: 9% to 11%, and copper: 2% to 4%.

9. The compressor integration system according to any one of claims 1 to 8, characterized in that: A muffler chamber communicating with the exhaust port is further provided on the outer side of the top end of the shell, and a second exhaust pipe is provided on an end of the muffler chamber away from the exhaust port.

10. The compressor integrated system according to claim 9, characterized in that: An outlet is provided at one end of the muffler chamber away from the exhaust port, the second exhaust pipe passes through the outlet, and the orthographic projection of the outlet on the end surface of the top end does not overlap with the exhaust port.

11. The compressor integration system according to any one of claims 1 to 8, characterized in that: An oil separator is further provided on the outer side of the top end of the shell, one end of the first exhaust pipe extending from the exhaust port is bent toward the side wall of the oil separator, and a second exhaust pipe is provided on the end of the oil separator away from the exhaust port.

12. The compressor integrated system according to claim 11, characterized in that: The top end of the shell is further provided with a through hole adjacent to the exhaust port, and the oil separator is communicated with the inner cavity of the shell through the through hole.

13. The compressor integration system according to any one of claims 1 to 8, characterized in that: The compressor integrated system further includes a first air return pipe and a second air return pipe, the top of the shell is further provided with an air return port, and the compressor body further includes an air return joint connected to the tank body; One end of the first air return pipe is connected to the air return joint, the other end of the first air return pipe extends toward the top end, one end of the second air return pipe extends from the air return port, the other end of the second air return pipe is located in the gas-liquid separation space, and is spaced apart from the end of the first air return pipe away from the air return joint.

14. The compressor integrated system according to claim 13, characterized in that: An oil pool is provided at the bottom end of the shell, and the compressor integrated system further includes an oil return capillary tube, one end of the oil return capillary tube is connected to the first air return pipe, and the other end of the oil return capillary tube extends into the oil pool.

15. An air conditioner outdoor unit, characterized in that: Comprising the compressor integration system according to any one of claims 1-14.

16. A HVAC equipment, characterized in that: It comprises an air-conditioning indoor unit and an air-conditioning outdoor unit as claimed in claim 15, wherein the air-conditioning outdoor unit is connected to the air-conditioning indoor unit through a pipeline.

Images