Four-way valve assembly, outdoor unit and heating and ventilation equipment

Abstract

The utility model particularly relates to a four-way valve assembly, an outdoor unit and heating and ventilation equipment, the four-way valve assembly is used for the outdoor unit, the four-way valve assembly comprises a four-way valve, the four-way valve comprises a valve body and four valve pipes, the four valve pipes are communicated through the valve body, at least one of the four valve pipes is a copper part, and at least one valve pipe is a stainless steel part. According to the four-way valve assembly, parts of the four valve pipes of the four-way valve are set to be stainless steel pieces, parts of the valve pipes are set to be copper pieces, the weight of the four-way valve can be effectively reduced, pipe cracking caused by overlarge stress of a pipeline connected with the four-way valve is avoided, the investment cost for manufacturing the four-way valve can be reduced, and meanwhile the four-way valve assembly is convenient to use. And the connecting effect of the four-way valve and the connecting pipeline can also be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning technical field, concretely relates to a four-way valve assembly, outdoor unit and heating and ventilation equipment. BACKGROUND

[0002] The air conditioning system comprises an indoor unit and an outdoor unit, the outdoor unit controls the flow direction of refrigerant through a four-way reversing valve to realize the switching of the working mode of the air conditioning system.

[0003] At present, the four-way valve used by the outdoor unit is mostly made of red copper material. However, the four-way valve is suspended in the outdoor unit. The four-way valve made of copper material is heavy, which can easily cause the pipe connected with the lower valve port to be easily stressed too much and cracked, and the four-way valve made of copper material has a high investment cost. SUMMARY

[0004] The utility model discloses a four-way valve assembly, for outdoor unit, the four-way valve assembly includes four-way valve, the four-way valve includes valve body and four valve pipes, four valve pipes are communicated through valve body, at least one valve pipe in four valve pipes is copper piece, and at least one valve pipe is stainless steel piece.

[0005] The utility model discloses a four-way valve assembly, for outdoor unit, the four-way valve assembly includes four-way valve, the four-way valve includes valve body and four valve pipes, four valve pipes are communicated through valve body, at least one valve pipe in four valve pipes is copper piece, and at least one valve pipe is stainless steel piece.

[0006] The four-way valve assembly can effectively reduce the weight of the four-way valve, avoid the pipe connected with the four-way valve from being cracked due to excessive stress, reduce the investment cost of the four-way valve, improve the connection effect of the four-way valve and the connected pipe, and has the advantages of simple structure, convenient use and the like.

[0007] In addition, the four-way valve assembly according to the utility model can have the following additional technical features.

[0008] In some embodiments of the utility model, the four-way valve further comprises a connecting pipe, the connecting pipe is connected to one end of the valve pipe away from the valve body and communicated with the valve body, and the connecting pipe is a copper piece.

[0009] In some embodiments of the utility model, the connecting pipe and the valve pipe are coaxially arranged, and the inner diameter of the connecting pipe is greater than the inner diameter of the valve pipe.

[0010] In some embodiments of the utility model, the valve pipe and the connecting pipe are integrally formed, or the valve pipe and the connecting pipe are welded.

[0011] In some embodiments of the utility model, four -way valve has first interface, second interface, third interface and fourth interface, first interface is used for with the heat exchanger of outdoor unit intercommunication, second interface is used for with the back gas interface of compressor of outdoor unit intercommunication, third interface is used for with low pressure valve assembly of outdoor unit intercommunication, fourth interface is used for with the exhaust interface of compressor intercommunication, the same direction of first interface, second interface and fourth interface.

[0012] In some embodiments of the utility model, the valve pipe comprises:

[0013] The first valve pipe is three in number, one end of the three first valve pipes is connected with the valve body, and the other end of the three first valve pipes is respectively provided with the second interface, the third interface and the fourth interface;

[0014] The second valve pipe is connected with the valve body at one end, and the first interface is arranged at the other end of the second valve pipe.

[0015] In some embodiments of the utility model, the second valve pipe is U-shaped, the first valve pipe is a straight pipe, and the first interface and the second interface are in the same direction.

[0016] In some embodiments of the utility model, the outer diameter of the first valve pipe is greater than the outer diameter of the second valve pipe.

[0017] In some embodiments of the utility model, the outer diameter of the valve pipe is 12-16mm.

[0018] In some embodiments of the utility model, the four-way valve assembly further comprises a connecting pipeline, the connecting pipeline is a copper piece or a stainless steel piece, and the connecting pipeline is welded with the valve pipe.

[0019] In some embodiments of the utility model, the four-way valve assembly further comprises a pipeline fixing device, the pipeline fixing device comprises a main body and at least two connecting parts, two of all the connecting parts are correspondingly arranged at opposite ends of the main body, and the connecting part is a flexible piece.

[0020] In some embodiments of the utility model, the connecting part has a groove for embedding the connecting pipeline, and the groove has an opening opening in a direction away from the main body.

[0021] The second aspect of the utility model provides an outdoor unit, which comprises the four-way valve assembly of the utility model.

[0022] The outdoor unit, by setting the four-way valve assembly, can effectively reduce the weight of the four-way valve, avoid the pipeline connected with the four-way valve from being cracked due to excessive stress, thereby prolonging the service life of the outdoor unit, and reducing the input cost of the four-way valve and the input cost of the outdoor unit assembly.

[0023] The third aspect of the utility model provides a kind of heating equipment, including the outdoor unit described in the utility model.

[0024] Compared with prior art, the heating equipment provided by the utility model has the technical advantages of the above-mentioned outdoor unit, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0025] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are for purposes of illustration only and are not intended to limit the present utility model. Moreover, in the drawings, the same reference numerals are used to designate the same components. In the drawings:

[0026] Figure 1 It is the partial structure schematic view of the outdoor unit of the utility model embodiment;

[0027] Figure 2 It is the partial structure schematic view of the four-way valve shown in the utility model embodiment;

[0028] Figure 3 It is the partial structure schematic view of the four-way valve assembly shown in the utility model embodiment;

[0029] Figure 4 It is Figure 3 The structure schematic view of the pipeline fixing device shown in the utility model embodiment;

[0030] Figure 5 It is another structure schematic view of the pipeline fixing device shown in the utility model embodiment;

[0031] Figure 6 It is the third structure schematic view of the pipeline fixing device shown in the utility model embodiment;

[0032] Figure 7 It is Figure 6 The structure schematic view of the main body of the pipeline fixing device shown in the utility model embodiment.

[0033] In the drawings, the following signs represent:

[0034] 1, outdoor unit;

[0035] 10, box body; 1001, first cavity;

[0036] 51 compressor;

[0037] 53 four-way valve assembly; 531 first port; 532 second port; 533 third port; 534 fourth port; 535 valve body; 536 valve pipe; 5361 first valve pipe; 5362 second valve pipe; 537 connecting pipe;

[0038] 54 pipe fixing device; 541 groove;

[0039] 5401 main body; 54011 first portion; 54012 second portion; 54013 damping portion; 54014 mounting portion; 5402 connecting portion. DETAILED DESCRIPTION

[0040] Example embodiments of the present disclosure will be described more fully hereinafter with reference to the accompanying drawings. While example embodiments of the present disclosure are shown in the drawings, it is understood that the present disclosure can be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present disclosure to those skilled in the art.

[0041] It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and the like are to be construed to be inclusive (i.e., to include both instances of open ended terms and instances of terms limiting to just the enumerated instances) unless otherwise indicated herein with the singular, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and the like are to be construed to be inclusive (i.e., to include both instances of open ended terms and instances of terms limiting to just the enumerated instances) unless otherwise indicated herein. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are described unless otherwise indicated. It is also to be understood that additional or alternative steps can be employed.

[0042] Although the terms first, second, third, and the like can be used herein to describe various 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 be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first", "second", and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

[0043] For the convenience of description, spatial relative terms can be used herein to describe the relationship of one element or feature to another element or feature as shown in the drawings, such as "inner", "outer", "inside", "outside", "lower", "below", "upper", "above", and the like. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the drawings. For example, if the device in the drawings is turned over, an element described as "below" or "under" another element or feature would then be oriented "above" or "over" the other element or feature. Thus, the example term "below" can include both an up and down orientation.

[0044] The split air conditioner includes an indoor unit and an outdoor unit. Generally, the indoor unit includes an evaporator, a blower, an air filter, a heater and the like. The outdoor unit mainly includes a shell, a compressor, a condenser and a base plate and the like. Among them, a four-way valve is arranged in the indoor unit, and the outdoor unit controls the flow direction of the refrigerant through the four-way valve, so as to realize the switching of the working mode of the air conditioning system.

[0045] At present, the four-way valve used in the outdoor unit is mostly made of red copper material. However, since the four-way valve is suspended in the outdoor unit, the four-way valve made of copper material is heavy, which is easy to cause the pipe connected with the lower valve port to be easily cracked due to excessive stress, and the four-way valve made of copper material has a high investment cost.

[0046] As shown in Figures 1-3 The utility model provides a four-way valve assembly 53 for solving the problems of large weight and high cost of the four-way valve of the existing outdoor unit 1.

[0047] Overall design, four-way valve assembly 53 includes four-way valve, four-way valve includes valve body 535 and four valve pipes 536, four valve pipes 536 pass through valve body 535 and are communicated, and at least one valve pipe 536 in four valve pipes 536 is stainless steel piece, and at least one valve pipe 536 is copper piece. By setting part of four valve pipes 536 of four-way valve as stainless steel piece, part valve pipe 536 is set as copper piece, four-way valve's weight can be effectively reduced, the pipe connected with four-way valve is avoided and is cracked due to excessive stress, four-way valve's investment cost of manufacture can be reduced, four-way valve and the connecting pipe can be connected simultaneously, and the connecting effect is improved.

[0048] It can be understood that the outdoor unit 1 provided by the utility model can be an outdoor unit 1 of an air conditioner or an outdoor unit 1 of other heating and ventilation equipment, the outdoor unit 1 has a box body 10, an accommodating cavity is formed inside, a partition plate (not shown in the figure) is arranged inside the box body 10, the partition plate divides the accommodating cavity into a first cavity 1001 and a second cavity (not shown in the figure). The inside of the first cavity 1001 is provided with a compressor 51 and a four-way valve assembly 53. The second cavity is provided with a fan and a heat exchanger, one end of the heat exchanger extends to the inside of the first cavity 1001 and communicates with the four-way valve assembly 53, the four-way valve assembly 53 communicates with the compressor 51 and the outside through pipelines. A plurality of pipelines are arranged in the first cavity 1001.

[0049] At this time, the fan assembly is used to provide air cooling heat exchange for the heat exchanger. The working cycle process of the outdoor unit 1 is taken as an example when the heating and ventilation equipment is in a refrigeration state, the refrigerant enters the compressor 51 for compression through the gas return interface, and then changes into high-temperature and high-pressure gas which is discharged from the exhaust interface and enters the four-way valve, then enters the heat exchanger (condenser) from the four-way valve, becomes medium-temperature and high-pressure liquid after absorbing cold and releasing heat in the heat exchanger, becomes low-temperature and low-pressure liquid after the expansion valve, becomes low-temperature and low-pressure gas after the heat exchanger (evaporator) of the indoor unit absorbs heat and releases cold, and finally enters the four-way valve assembly 53 and then returns to the compressor 51, and then continues to circulate.

[0050] As shown in Figure 2 and Figure 3 The four-way valve assembly 53 includes a four-way valve, the four-way valve includes a valve body 535 and four valve pipes 536, the four valve pipes 536 are all connected to the valve body 535 and communicate with each other through the valve body 535. In the embodiment, the valve body 535 is in a cylindrical shape, the valve body 535 is internally provided with a valve cavity and a valve sheet, the valve sheet is controlled to selectively control the on-off of the four valve pipes 536. Among them, the four valve pipes 536 can be provided as one stainless steel piece and three copper pieces, or provided as two stainless steel pieces and two copper pieces, or provided as three stainless steel pieces and one copper piece. In this way, the connection of the four-way valve with other components can be ensured, and the manufacturing cost of the four-way valve can also be reduced.

[0051] In addition, the valve body 535 can also be provided as a stainless steel piece, at this time, not only the cost of the four-way valve can be effectively reduced, but also the heat loss can be reduced because the heat conduction of stainless steel is lower than that of brass, so that the heating capacity can be improved.

[0052] It should be pointed out that the four valve pipes 536 can also be all provided as stainless steel pieces, although the cost can be reduced and the heat loss can be reduced by matching the valve body 535. The four valve pipes 536 can also be all provided as purple copper pipes, although the cost is higher, but the structure is relatively stable, and the stability of the heat pump type outdoor unit 1 during operation can be improved.

[0053] Further, the four-way valve further comprises a connecting pipe 537, the connecting pipe 537 is connected to an end of the valve pipe 536 away from the valve body 535 and communicates with the valve body 535, and the connecting pipe 537 is made of copper.

[0054] Specifically, by connecting the valve pipe 536 and the connecting pipe 537, and setting the connecting pipe 537 as a copper piece, the connecting pipe 537 can be sleeved on the connecting pipeline described below, and it is helpful to reduce the welding difficulty of the valve pipe 536 and the connecting pipeline, and is conducive to improving the assembly effect of the outdoor unit 1.

[0055] It should be understood that when the valve pipe 536 is a copper piece, the valve pipe 536 can be formed by stamping a pipe structure to form a flared end, thereby forming the valve pipe 536 and the connecting pipe 537, at this time, the valve pipe 536 and the connecting pipe 537 are integrally formed. By setting up in this way, it is helpful to further reduce the manufacturing difficulty of the four-way valve and improve the assembly efficiency of the four-way valve. When the valve pipe 536 is a stainless steel piece, the valve pipe 536 and the connecting pipe 537 can be connected together by welding, thereby enabling the connecting pipe 537 to communicate with the valve body 535 through the valve pipe 536, thereby realizing the assembly of the four-way valve.

[0056] In the present embodiment, the connecting pipe 537 and the valve pipe 536 are coaxially arranged, which can help to ensure the circulation of the refrigerant and reduce the flow resistance. At the same time, the inner diameter of the connecting pipe 537 is greater than the inner diameter of the valve pipe 536, and the inner diameter of the valve pipe 536 is consistent with the inner diameter of the connecting pipeline described below, which on the one hand helps to increase the connection area between the connecting pipeline and the valve pipe 536, thereby improving the connection reliability; on the other hand, it is helpful to further reduce the flow resistance and ensure the flow effect of the four-way valve assembly 53.

[0057] Further, the four-way valve has a first interface 531, a second interface 532, a third interface 533 and a fourth interface 534, the first interface 531 is used to communicate with the heat exchanger of the outdoor unit 1, the second interface 532 is used to communicate with the return gas interface of the compressor 51 of the outdoor unit 1, the third interface 533 is used to communicate with the low-pressure valve assembly of the outdoor unit 1, and the fourth interface 534 is used to communicate with the exhaust interface of the compressor 51, and the first interface 531, the second interface 532 and the fourth interface 534 are in the same direction.

[0058] Specifically, since the heat exchanger and the compressor 51 connected by the three interfaces are not convenient to disassemble together with the four-way valve assembly 53, by setting the three interfaces of the four-way valve assembly 53 communicating with the heat exchanger and the compressor 51 to be in the same direction, when the four-way valve assembly 53 needs to be repaired, the four-way valve assembly 53 can be cut off at the three interfaces in the same direction, and the four-way valve assembly 53 can be disassembled together with the low-pressure valve assembly which is convenient to disassemble, thereby improving the disassembly efficiency and convenience of the four-way valve assembly 53.

[0059] It can be understood that the first interface 531, the second interface 532, the third interface 533 and the fourth interface 534 are all arranged downward along the height direction of the outdoor unit 1. The low-pressure valve assembly is usually mounted on the cabinet 10 to facilitate installation and maintenance. When the four-way valve assembly 53 needs to be disassembled, the first interface 531, the second interface 532 and the fourth interface 534 are cut off from the pipeline connected between the heat exchanger and the compressor 51, and the pipeline connected with the third interface 533 is lifted, so that the four-way valve assembly 53 is disassembled, or all the connected pipelines are cut off, and the four-way valve assembly 53 is lifted to complete the disassembly.

[0060] In some embodiments of the utility model, the outdoor unit 1 further comprises a four-way valve assembly 53, and the four-way valve assembly 53 further comprises a connecting pipeline, the connecting pipeline is a copper piece or a stainless steel piece, and the connecting pipeline is welded with the valve pipe 536. Among them, the number of the connecting pipeline is four, for the convenience of description, the four connecting pipelines are respectively called first pipeline, second pipeline, third pipeline and fourth pipeline, one end of the first pipeline is welded with the first interface 531, the other end of the first pipeline is communicated with the heat exchanger, one end of the second pipeline is welded with the second interface 532, the other end of the second pipeline is communicated with the exhaust interface, one end of the third pipeline is welded with the third interface 533, the other end of the third pipeline is communicated with the return air interface, one end of the fourth pipeline is welded with the fourth interface 534, and the other end of the fourth pipeline is communicated with the exhaust interface.

[0061] It can be understood that the first pipeline, the second pipeline, the third pipeline and the fourth pipeline can be selected from stainless steel pipes or copper pipes, which are connected with the valve body 535 by welding and communicated with the first interface 531, the second interface 532, the third interface 533 and the fourth interface 534, so that there is no risk of liquid leakage at the connection, and the reliability of the connection is improved.

[0062] In some embodiments of the utility model, the valve pipe 536 comprises a first valve pipe 5361 and a second valve pipe 536, wherein the number of the first valve pipe 5361 is three, one end of the three first valve pipes 5361 is connected with the valve body 535, and the other end of the three first valve pipes 5361 is respectively provided with the first interface 531, the second interface 532 and the third interface 533. One end of the second valve pipe 536 is connected with the valve body 535, and the other end of the second valve pipe 536 is provided with the fourth interface 534.

[0063] Optionally, to facilitate the connection of the pipeline with the valve body 535, the valve body 535 can extend three first valve pipes 5361 on the periphery. The first valve pipe 5361 can be in a straight pipe structure, can be welded or integrally formed with the valve body 535, one end of the first valve pipe 5361 is connected with the valve body 535, and the other end is provided with a connecting pipe 537. The connecting pipe 537 is taken as the first interface 531, the second interface 532 and the third interface 533, so that the pipeline can be inserted into the connecting pipe 537. On the one hand, the inner end of the connecting pipe 537 can limit the pipeline, and on the other hand, the arrangement of the connecting pipe 537 makes the first pipeline, the second pipeline and the third pipeline substantially consistent with the inner diameter of the first valve pipe 5361, so as to reduce the flow resistance, and the plug-in mode can also improve the contact area between the first pipeline, the second pipeline and the third pipeline and the first valve pipe 5361, so as to improve the welding connection strength.

[0064] Meanwhile, the second valve pipe 5362 can be made of stainless steel pipe or copper pipe, and is connected with the valve body 535 by welding. One end of the second valve pipe 5362 can be taken as the fourth interface 534. The second valve pipe 5362 is a U-shaped elbow pipe. The area surrounded by the elbow pipe segment has a downward opening, so that the end of the second valve pipe 5362 away from the valve body 535 is arranged downward and in the same direction as the other three interfaces, facilitating the cutting of the four pipelines connected with the four interfaces when the four-way valve assembly 53 is disassembled. The four-way valve assembly 53 can be disassembled by being pulled upward. Or the pipeline connecting the four-way valve assembly 53 with the low-pressure valve assembly is retained, and the four-way valve assembly 53 and the low-pressure valve assembly are integrally disassembled.

[0065] Optionally, since the fourth interface 534 is in communication with the exhaust structure, taking the case where the heating and ventilation equipment is in a refrigeration state as an example, the low-temperature and low-pressure gas after the heat absorption and cold release of the heat exchanger (evaporator) of the indoor unit enters the four-way valve assembly 53 through the fourth interface 534. At this time, by making the outer diameter of the first valve pipe 5361 greater than the outer diameter of the second valve pipe 536, on the one hand, the second valve pipe 536 can be matched with the exhaust structure, thereby cooperating with the first valve pipe 5361 to ensure the use effect of the four-way valve, and on the other hand, it is helpful to further reduce the manufacturing cost of the four-way valve.

[0066] In the embodiment, the outer diameter of the valve pipe 536 ranges from 12 mm to 16 mm. The outer diameter of the first valve pipe 5361 is 12 mm, and the outer diameter of the second valve pipe 536 is 9 mm, so as to improve the regulation effect of the four-way valve on the refrigerant in gaseous and liquid states in the outdoor unit 1.

[0067] Further, the pipeline fixing device 54 comprises a main body 5401 and at least two connecting portions 5402, two of the connecting portions 5402 are arranged at opposite ends of the main body 5401, and the connecting portions 5402 are flexible members. Meanwhile, the connecting portions 5402 are provided with grooves 541 for embedding the pipeline, and the grooves 541 are open towards the direction away from the main body 5401.

[0068] Specifically, the main body 5401 connects multiple pipelines through the connecting portions 5402, and by arranging the connecting portions 5402 as flexible members, the vibration amplitude of the pipeline is reduced, the pipeline stress is reduced, and the sound quality of the outdoor unit 1 is improved. Meanwhile, the connecting portions 5402 are provided with openings away from the main body 5401, and the opening degree of the openings can be adjusted. When the outdoor unit 1 is subjected to external force impact or the pipeline is deformed due to the vibration of the compressor 51, the deformation amount of the pipeline is effectively limited under the support of the main body 5401 or the constraint of the connecting portions 5402, and meanwhile, the pipeline fixing device 54 can also avoid the phenomenon of structural constraint failure due to large impact force under the action of external impact.

[0069] As shown in Figure 2 and Figure 4 , the four-way valve assembly 53 has four interfaces, and each interface is provided with a connecting pipeline, and the four connecting pipelines are provided with vibration reduction sections arranged in the vertical direction, wherein one of the four vibration reduction sections is arranged alone, and the other three vibration reduction sections are arranged in the horizontal direction. Alternatively, the vibration reduction section of the first pipeline is arranged alone, and the vibration reduction sections of the other three pipelines are arranged.

[0070] In this embodiment, the pipeline fixing device 54 comprises a main body 5401 and a connecting portion 5402, wherein the main body 5401 is located between the first pipeline and the multiple second pipelines. The number of the connecting portions 5402 is multiple, and the multiple connecting portions 5402 are arranged at opposite sides of the main body 5401. Alternatively, three of the multiple connecting portions 5402 are arranged in a row and correspond to the vibration reduction sections of the three second pipelines. The connecting portion 5402 is provided with a groove 541, which can be connected to the vibration reduction section of the first pipeline or the vibration reduction section of the second pipeline.

[0071] It should be noted that in this embodiment, the connecting portion 5402 is used to connect with the vibration reduction section of the connecting pipeline, and at this time, the main body 5401 is a plate structure, which can make the overall structure of the pipeline fixing device 54 simple, convenient to manufacture, and can cooperate with the existing four-way valve assembly 53. Of course, in addition to this, the connecting portion 5402 can also be adapted to connect with the curved and inclined portions of the pipeline.

[0072] It needs to be further understood that the connecting portion 5402 is a flexible member, that is, the connecting portion 5402 is made of a flexible material, which refers to a material that can be greatly deformed or reversibly deformed under external force. They usually have a low elastic modulus and a low melting point, and exhibit good deformability and plasticity. Common flexible materials include rubber, plastic, fiber materials, etc. Alternatively, the connecting portion 5402 is provided as a rubber member or a foam member. The groove 541 on the connecting portion 5402 has an opening away from the main body 5401, and the pipeline can enter the interior of the groove 541 from the opening, thereby realizing the connection of the pipeline fixing device 54 and the pipeline. The flexible connecting portion 5402 is in contact with the pipeline, which helps to reduce noise when the pipeline vibrates, and also utilizes the deformation effect of the connecting portion 5402 to help reduce pipeline stress. In addition, the flexible connecting portion 5402 can also effectively reduce the wear of the connected pipeline.

[0073] In the present embodiment, the opening degree of the opening can be adjusted to ensure that the connecting portion 5402 can be adapted to wrap various different models of connecting pipelines, thereby helping to improve the applicability of the pipeline fixing device 54. Alternatively, the opening degree of the opening is greater than zero and less than the diameter of the groove. Since the connecting portion 5402 is a rubber member, the opening degree can be adjusted by its own elastic deformation.

[0074] It needs to be noted that since the connecting portion 5402 is wrapped on the outer wall of the pipeline, and each connecting portion 5402 is connected through the main body 5401, at this time, when the outdoor unit 1 encounters external force impact or due to the vibration of the compressor 51, due to the arrangement of the main body 5401, there is a pushing force away from the main body 5401 between each pipeline, and there is also a pulling force due to the wrapping of the connecting portion 5402, thereby helping to reduce the deformation amount of the connecting pipeline, and also cooperating with the arrangement of the connecting pipeline to avoid the phenomenon that the structural constraint fails due to large impact force under the impact of the external environment, effectively improving the service life of the pipeline fixing device 54 and the safety of the arrangement of the connecting pipeline.

[0075] As shown in Figures 2-4 The main body 5401 and the connecting portion 5402 can be an integrally formed member. Arranging the main body 5401 and the connecting portion 5402 as an integrally formed structure helps to reduce the manufacturing difficulty of the pipeline fixing device 54 and improve the manufacturing efficiency of the pipeline fixing device 54. In the present embodiment, the pipeline fixing device 54 is made of rubber material. Alternatively, the pipeline fixing device 54 has four grooves 541, which are respectively connected with the outer wall of the connecting pipeline, and along the radial cross section of the pipeline, the groove 541 can wrap at least 1 / 2 of the circumference of the pipeline cross section.

[0076] Further, the inner wall of the groove 541 is provided with an anti-skid layer. By providing the anti-skid layer, the pipe fixing device 54 can be effectively prevented from sliding along the axial direction of the pipe, the installation effect of the pipe fixing device 54 is improved, and at the same time, the vibration transmitted along the axial direction of the pipe can be effectively reduced, so that the occurrence of noise of the pipe caused by the vibration of the compressor 51 can be further reduced.

[0077] It can be understood that the anti-skid layer can be an anti-skid structure protruding into the groove 541, and the anti-skid structure is arranged perpendicular to the axial direction of the pipe, which helps to further improve the installation effect of the pipe fixing device 54. Alternatively, the number of anti-skid structures is multiple, and the anti-skid structures are arranged at intervals along the axial direction of the pipe. The anti-skid layer can also be a sprayed layer, wherein the sprayed material is not easy to chemically react with metal, and a large friction coefficient is formed between the sprayed material and the metal.

[0078] Further, the main body 5401 is provided in a triangular structure, the main body 5401 has a first tip and a first side corresponding to the first tip. The number of the connecting portions 5402 is four, one of the four connecting portions 5402 is arranged at the first tip, and the other three connecting portions 5402 are arranged at intervals on the first side, and the openings of the three connecting portions 5402 arranged on the first side are arranged in a direction away from the first tip.

[0079] Specifically, by arranging the main body 5401 in a triangular structure and arranging the connecting portions 5402 on the first tip and the first side respectively, on the one hand, the pipe fixing device 54 can better cooperate with the four-way valve assembly 53, and on the other hand, it helps to reduce the manufacturing cost of the pipe fixing device 54. At the same time, it is helpful to arrange the openings of the grooves 541 in a direction away from the main body 5401, which facilitates the installation and disassembly of the pipe fixing device 54, thereby improving the installation efficiency of the outdoor unit 1.

[0080] It should be understood that, as shown in Figure 2 and Figure 4 in the embodiment, the connecting portions 5402 are formed on the main body 5401, and the main body 5401 as a whole is in a triangular structure. The main body 5401 has three tips, one of the three tips is a first tip, the side corresponding to the first tip is a first side, the first tip is provided with a groove 541, and the first side is provided with a plurality of grooves 541 at intervals. By arranging the main body 5401 in a triangular structure, on the one hand, the main body 5401 can better cooperate with the four-way valve assembly 53, and on the other hand, the main body 5401 can also reduce the interference with other components and reduce the manufacturing cost of the main body 5401.

[0081] It should be noted that the main body 5401 can be arranged in other shapes in addition to the equilateral triangle structure, such as an isosceles triangle, a rectangle, a pentagon, a hexagon, etc. If the main body 5401 is still arranged in a triangular structure, the length of the first side can be set according to the arrangement length of the plurality of second pipelines. At this time, the main body 5401 can be an isosceles triangle, a right triangle, an obtuse triangle, etc.

[0082] It should be noted that if the main body 5401 is arranged as a whole in a triangular structure, the groove 541 can be arranged on each side in addition to the tip position. The shape of the main body 5401 can be installed according to the actual arrangement of the pipeline. Moreover, in the present embodiment, the pipeline fixing device 54 is arranged horizontally. Of course, the pipeline fixing device 54 can be arranged vertically or obliquely.

[0083] Further, the main body 5401 is a rigid member, and the connecting part 5402 is detachably connected to the main body 5401.

[0084] Specifically, since the connecting part 5402 is a flexible member, the pipeline fixing device 54 can effectively absorb stress at this time. By arranging the main body 5401 as a rigid member and detachably arranging the connecting part 5402 on the main body 5401, the connecting part 5402 can be installed on the main body 5401 or adjusted in position on the main body 5401 according to the arrangement of the pipeline, which helps to further improve the applicability of the pipeline fixing device 54.

[0085] It should be understood that, as shown in Figure 5 and Figure 7 , the main body 5401 is a rigid member, that is, a component made of a rigid material. The rigid material is a material that only deforms slightly or does not deform under external force. Alternatively, the main body 5401 is an integrally formed member. At this time, the deformation amount of the connecting part 5402 can be increased as needed to ensure that the pipeline fixing device 54 has better vibration reduction effect. The main body 5401 can also be arranged as a plurality of parts combined together. At this time, the plurality of components can cooperate to achieve the vibration reduction effect. For specific structures, reference can be made to existing vibration reduction devices.

[0086] It should be noted that the main body 5401 can also be arranged as a flexible member, and the connecting part 5402 is detachably connected to the main body 5401. At this time, the main body 5401 and the connecting part 5402 are both made of flexible materials, but their materials are different. For example, the main body 5401 is a plastic member, and the connecting part 5402 is a rubber member. At the same time, the connecting method of the connecting part 5402 and the main body 5401 includes but is not limited to screwing, clamping, bonding, etc.

[0087] In some embodiments, as shown in Figure 5As shown, the main body 5401 comprises a first part 54011 and a second part 54012, the first part 54011 and the second part 54012 cooperate to form a pipe clamp structure, the connecting portion 5402 is arranged between the first part 54011 and the second part 54012, or the main body 5401 comprises a damping portion 54013 and a mounting portion 54014, the number of the mounting portion 54014 is two, and the two mounting portions 54014 are respectively arranged on the opposite sides of the damping portion 54013, and the connecting portion 5402 is arranged on the mounting portion 54014.

[0088] Specifically, by dividing the main body 5401 into two parts, on the one hand, the connecting portion 5402 can be installed, and on the other hand, the damping structure of the main body 5401 and the mounting structure of the main body 5401 and the connecting portion 5402 can be separated, so that the mounting structure and the damping structure can be disassembled or adjusted, which is helpful to further improve the applicability of the pipeline fixing device 54.

[0089] It should be understood that, as Figure 5 shown, the main body 5401 comprises a first part 54011 and a second part 54012, wherein the opposite sides of the first part 54011 are provided with a first recess structure, and the second part 54012 is provided with a second recess structure, the first part 54011 and the second part 54012 are connected in cooperation, at this time, the first recess structure and the second recess structure cooperate to form a pipe clamp structure, and the pipe clamp structure can be connected with the pipeline. At the same time, the connecting portion 5402 is arranged between the first recess structure and the second recess structure.

[0090] It should be understood that, as Figure 6 and Figure 7 shown, the main body 5401 comprises a damping portion 54013 and a mounting portion 54014, wherein the damping portion 54013 can be an integral molding member or composed of a plurality of components. As Figure 7 shown, the damping portion 54013 is a plastic part, and the mounting portion 54014 is formed on the damping portion 54013, and in this embodiment, the mounting portion 54014 is arranged as a threaded hole. The threaded holes are respectively arranged on the opposite sides of the damping portion 54013, and the connecting portion 5402 is connected to the mounting portion 54014 by a fastener. Alternatively, the fastener can be a bolt or a screw.

[0091] It needs to be further understood that the main body 5401 is provided with a fixing structure, which is not shown in the figure, wherein the fixing structure can be used to connect with the cabinet 10 of the outdoor unit 1. The fixing structure is arranged, so that the pipe fixing device 54 is connected with the cabinet 10, which helps to further improve the fixing effect of the pipe fixing device 54, prevents the pipe fixing device 54 from sliding or separating from the pipe, and further reduces the external force transmitted to the pipe to be protected, and prevents the pipe from being broken due to stress concentration.

[0092] The second aspect of the utility model provides an outdoor unit 1, which comprises the four-way valve assembly 53. By arranging the four-way valve assembly 53, the weight of the four-way valve can be effectively reduced, the connecting pipe connected with the four-way valve can be prevented from being cracked due to excessive stress, the service life of the outdoor unit 1 is improved, the manufacturing cost of the four-way valve is reduced, and the assembly cost of the outdoor unit 1 is reduced.

[0093] The third aspect of the utility model provides a heating and ventilation equipment, which comprises the outdoor unit 1.

[0094] Compared with the prior art, the heating and ventilation equipment has the technical advantages of the outdoor unit 1, which will not be repeated here.

[0095] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered by the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A four-way valve assembly for an outdoor unit, characterized by, The four-way valve assembly comprises a four-way valve, the four-way valve comprises a valve body and four valve pipes, the four valve pipes are communicated through the valve body, at least one of the four valve pipes is a copper piece, and at least one of the valve pipes is a stainless steel piece.

2. The four-way valve assembly of claim 1, wherein, The four-way valve further comprises a connecting pipe, the connecting pipe is connected to one end of the valve pipe away from the valve body and communicated with the valve body, and the connecting pipe is a copper piece.

3. The four-way valve assembly of claim 2, wherein, The connecting pipe and the valve pipe are coaxially arranged, and the inner diameter of the connecting pipe is greater than the inner diameter of the valve pipe.

4. The four-way valve assembly of claim 2, wherein, The valve pipe and the connecting pipe are integrally formed, or the valve pipe and the connecting pipe are welded.

5. The four-way valve assembly of claim 1, wherein, The four-way valve has a first interface, a second interface, a third interface and a fourth interface, the first interface is used for communicating with a heat exchanger of the outdoor unit, the second interface is used for communicating with a return gas interface of a compressor of the outdoor unit, the third interface is used for communicating with a low-pressure valve assembly of the outdoor unit, and the fourth interface is used for communicating with an exhaust gas interface of the compressor, and the first interface, the second interface and the fourth interface are in the same direction.

6. The four-way valve assembly of claim 5, wherein, The valve pipe comprises: Three first valve pipes, one end of each of the three first valve pipes is connected to the valve body, and the other end of each of the three first valve pipes is provided with the second interface, the third interface and the fourth interface respectively; A second valve pipe, one end of the second valve pipe is connected to the valve body, and the other end of the second valve pipe is provided with the first interface.

7. The four-way valve assembly of claim 6, wherein, The second valve pipe is U-shaped, the first valve pipe is a straight pipe, and the first interface and the second interface are in the same direction.

8. The four-way valve assembly of claim 6, wherein, The outer diameter of the first valve pipe is greater than the outer diameter of the second valve pipe.

9. The four-way valve assembly of claim 1, wherein, The outer diameter of the valve pipe ranges from 12mm to 16mm.

10. The four-way valve assembly of claim 1, wherein, The four-way valve assembly further comprises a connecting pipeline, the connecting pipeline is a copper piece or a stainless steel piece, and the connecting pipeline is welded to the valve pipe.

11. The four-way valve assembly of claim 10, wherein, The four-way valve assembly further comprises a pipeline fixing device, the pipeline fixing device comprises a main body and at least two connecting parts, two of the connecting parts are arranged at opposite ends of the main body, and the connecting parts are flexible pieces. The connecting part has a groove for embedding the connecting pipeline, and the groove has an opening open in a direction away from the main body.

12. An outdoor unit characterized by comprising: The four-way valve assembly comprises a four-way valve, the four-way valve comprises a valve body and four valve pipes, the four valve pipes are communicated through the valve body, at least one of the four valve pipes is a copper piece, and at least one of the valve pipes is a stainless steel piece.

13. A heating and ventilation device, characterized in that The four-way valve assembly comprises a four-way valve, the four-way valve comprises a valve body and four valve pipes, the four valve pipes are communicated through the valve body, at least one of the four valve pipes is a copper piece, and at least one of the valve pipes is a stainless steel piece.

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