Flow dividing assembly and heating and ventilation equipment

Abstract

The invention particularly relates to a flow dividing assembly and heating and ventilation equipment. The flow dividing assembly comprises a distributor and a first connecting pipe. The distributor comprises a shell and a plate body. The shell is provided with an inflow hole and an expansion cavity communicated with the inflow hole, and the expansion cavity is provided with an opening. The plate body is arranged on the shell and blocks the opening. The plate body is provided with a plurality of inserting parts, the inserting parts are arranged at intervals in the circumferential direction of the inflow hole, the inserting parts are connected with the first connecting pipe in a matched mode, the inserting parts are provided with extending structures extending out of the plate body, the extending structures are provided with flow dividing holes, and the flow dividing holes and the first connecting pipe are concentrically arranged. According to the flow dividing assembly, the inserting part which can be connected with the first connecting pipe in the matched mode is arranged on the plate body, convenience can be provided for follow-up welding, and the connecting strength of the distributor and the first connecting pipe can be improved; therefore, the problem that the reliability of a lap joint structure formed by an existing distributor and a distribution pipe is poor can be effectively solved.

Description

Technical Field

[0001] This invention relates to the field of heating, ventilation and air conditioning (HVAC) equipment technology, and specifically to a flow distribution component and HVAC equipment. Background Technology

[0002] For HVAC equipment, there are generally two modes: cooling mode and heating mode. In this case, cooling mode and heating mode refer to the indoor heat exchanger. When the indoor heat exchanger is in cooling mode or heating mode, the outdoor heat exchanger is in heating mode or cooling mode respectively.

[0003] In cooling mode, the compressor compresses the low-temperature, low-pressure refrigerant to a high-temperature, high-pressure state. After flowing into the outdoor heat exchanger, it condenses into a high-pressure, medium-temperature liquid refrigerant. This liquid refrigerant then passes through a throttling device to become a low-temperature, low-pressure two-phase refrigerant. Before entering the indoor heat exchanger, the two-phase refrigerant flows through a distributor. The distributor allocates the two-phase refrigerant according to the refrigerant demand in different flow paths before it enters the indoor heat exchanger for heat exchange, achieving the cooling effect. In this mode, the outdoor heat exchanger acts as the condenser, and the indoor heat exchanger acts as the evaporator. The low-temperature, low-pressure refrigerant after heat exchange eventually enters the compressor's return gas end for subsequent circulation. In heating mode, the compressed refrigerant first enters the indoor heat exchanger for condensation. In this mode, the indoor heat exchanger acts as the condenser, and the outdoor heat exchanger acts as the evaporator. The distributor distributes the liquid or gaseous refrigerant flowing from the condenser to the evaporator.

[0004] Currently, distributors typically use stepped holes formed by a cover plate and a diversion plate to install connecting pipes, creating a welded lap joint. To ensure welding quality, a certain lap depth or lap area is generally required. This necessitates a relatively thick cover plate, and the resulting lap structure has poor reliability. Furthermore, the presence of the cover plate presents greater challenges to assembly and component alignment. Summary of the Invention

[0005] The objective of this invention is to at least solve the problem of poor reliability in the existing overlap structure formed by the distributor and the distribution pipe. This objective is achieved through the following technical solution:

[0006] A first aspect of the invention provides a splitter assembly, including a distributor and a plurality of first connecting pipes; the distributor includes:

[0007] A housing having an inlet orifice and an expansion cavity communicating with the inlet orifice, the expansion cavity having an opening;

[0008] A plate body is disposed on the housing and seals the opening. The plate body is provided with a plurality of plug-in parts, which are spaced apart circumferentially along the inflow hole. The plug-in parts are adapted to be connected to the first connecting pipe. The plug-in parts have an extension structure protruding from the plate body. The extension structure is provided with the diversion hole, which is concentrically arranged with the first connecting pipe.

[0009] The flow distribution assembly of this invention includes a distributor and a first connecting pipe. The distributor includes a housing and a plate. The expansion cavity of the housing allows refrigerant to be quickly introduced into the various flow distribution holes of the plate, which helps improve the refrigerant flow effect. Simultaneously, by providing a plug-in portion on the plate for fitting and connecting with the first connecting pipe, the contact area between the first connecting pipe and the plate is effectively increased, improving the connection strength between the distributor and the first connecting pipe. This helps solve the problem of poor overlap between existing distributors and distribution pipes. Furthermore, it helps solve the alignment problem between multiple components during assembly and provides convenience for subsequent welding.

[0010] Furthermore, the plug-in joint not only provides positioning for the insertion of the first connecting pipe, but also eliminates the need for a cover plate, simplifying the structure of the distribution assembly and improving its assembly performance. Simultaneously, the plug-in joint helps to disrupt the refrigerant flow direction, enhancing refrigerant mixing.

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

[0012] In some embodiments of the present invention, the plug-in portion is configured as a hole, and one end of the first connecting tube is inserted into the interior of the plug-in portion;

[0013] The extension structure is located inside the expansion cavity. The extension structure has a limiting plate arranged parallel to the plate body. The limiting plate abuts against the first connecting pipe. The diversion hole is disposed on the limiting plate.

[0014] In some embodiments of the present invention, the limiting plate is provided with a protrusion, which is arranged circumferentially along the diversion hole.

[0015] In some embodiments of the present invention, the plug portion is configured as a column, the extension structure is disposed on the side of the plate away from the expansion cavity, and the first connecting tube is sleeved on the extension structure.

[0016] In some embodiments of the present invention, a turbulence cavity is provided on the side of the plug portion facing the expansion cavity, the inner diameter of the turbulence cavity being larger than the diameter of the diversion hole and smaller than the inner diameter of the first connecting pipe.

[0017] In some embodiments of the present invention, the first connecting pipe is a rigid component.

[0018] In some embodiments of the present invention, the shunt component further includes:

[0019] A flow divider cone is disposed on the plate body, and the axis of the flow divider cone is on the same straight line as the axis of the inflow hole.

[0020] In some embodiments of the present invention, the plate is provided with a clearance hole, and the diversion cone includes a cone, an extension section and a second flange connected in sequence. The cone is disposed inside the expansion cavity, the extension section is adapted to the inner wall of the clearance hole, and the second flange is fitted and connected to the side of the plate away from the expansion cavity.

[0021] In some embodiments of the present invention, the plate body includes a substrate and a welded component connected together, the substrate and the welded component being integrally formed and defining the insertion portion, the welded component abutting against the first connecting pipe.

[0022] In some embodiments of the present invention, the dispenser has a first insert portion that defines the inflow orifice;

[0023] The diversion assembly further includes a second connecting tube, which is sleeved on the outside of the first insert portion.

[0024] In some embodiments of the present invention, the second connecting pipe further includes:

[0025] An inlet pipe is sleeved on the first insert portion, and the inlet pipe has an injection cavity, the inner diameter of which is larger than the inner diameter of the inflow hole;

[0026] The second adapter is inserted into the end of the inlet pipe opposite to the inflow hole.

[0027] A second aspect of the invention also provides a heating, ventilation, and air conditioning (HVAC) device, comprising:

[0028] First heat exchanger;

[0029] Second heat exchanger;

[0030] As described in the present invention, in the flow distribution assembly, the first connecting pipe is connected to the first heat exchanger, and the distributor is connected to the second heat exchanger.

[0031] Compared with the prior art, the HVAC equipment proposed in this invention has the technical advantages of the aforementioned diversion components, which will not be elaborated here. Attached Figure Description

[0032] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0033] Figure 1 A schematic diagram of the structure of a heating, ventilation, and air conditioning (HVAC) device according to an embodiment of the present invention is shown.

[0034] Figure 2 for Figure 1 The diagram shows the structure of the shunt component.

[0035] Figure 3 for Figure 2 A partial cross-sectional schematic diagram of the shunt assembly shown;

[0036] Figure 4 for Figure 3 The diagram shows the structural schematic of the plate.

[0037] Figure 5 for Figure 3 A schematic diagram of the plate structure shown from another perspective;

[0038] Figure 6 for Figure 2 A partial cross-sectional schematic diagram of another type of shunt assembly shown;

[0039] Figure 7 for Figure 6 The diagram shows the structural schematic of the plate.

[0040] Figure 8 for Figure 1 Another structural diagram of the shunt component shown;

[0041] Figure 9 for Figure 8 A cross-sectional schematic diagram of the shunt assembly shown;

[0042] Figure 10 for Figure 9 The diagram shows the structure of the plate.

[0043] The markings in the attached diagram are as follows:

[0044] 1. Heating, ventilation, and air conditioning (HVAC) equipment;

[0045] 1000, Flow divider assembly; 2000, First heat exchanger; 3000, Second heat exchanger; 4000, Compressor; 5000, Refrigeration throttle valve; 6000, Four-way valve;

[0046] 100. Distributor;

[0047] 200. First connecting pipe;

[0048] 300. Second connecting pipe; 301. Inlet pipe;

[0049] 10. Shell;

[0050] 101. Injection cavity; 102. Flow stabilization cavity; 103. Expansion cavity; 104. Mounting cavity;

[0051] 11. First insertion part; 111. Inlet hole; 12. Mounting part;

[0052] 20. Plate body; 201. Diversion hole; 203. Clearance hole; 204. Insertion part; 2041. Extension structure; 20411. Fluctuation cavity; 2042. Limiting plate; 2043. Protrusion;

[0053] 30. Diverter cone; 31. Cone; 32. Extension section; 33. Second flange;

[0054] 60. First adapter;

[0055] 70. Second adapter. Detailed Implementation

[0056] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to 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 disclosure to those skilled in the art.

[0057] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also mean including the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0058] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0059] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations.

[0060] like Figures 1-10 As shown, this invention proposes a flow-diverting assembly 1000 for use in a heating, ventilation, and air conditioning (HVAC) system 1. Specifically, the HVAC system 1 may include a compressor 4000, a valve structure, a first heat exchanger 2000, and a second heat exchanger 3000 connected in series. The compressor 4000 is used to compress refrigerant. The refrigerant compressed by the compressor 4000 flows sequentially through the second heat exchanger 3000 and the first heat exchanger 2000, and finally flows back to the compressor 4000. The valve structure includes a four-way valve 6000. The four-way valve 6000 has four ports, two of which are connected to the output and input ends of the compressor 4000, respectively, and the other two ports are connected to the input end of the second heat exchanger 3000 and the output end of the first heat exchanger 2000, respectively.

[0061] The first heat exchanger 2000 and the second heat exchanger 3000 enable the HVAC system 1 to switch between evaporator and condenser functions, i.e., heating mode and cooling mode. In this configuration, one of the heat exchangers 2000 and 3000 is located outside the target space as an outdoor unit, while the other is installed inside the target space as an indoor unit. The outdoor and indoor units work together to form a circulation path, enabling the HVAC system 1 to provide cooling, heating, dehumidification, and air purification to the target space, thereby achieving a comfortable environment. The HVAC system 1 can have one outdoor unit and multiple indoor units; this embodiment does not impose a specific limitation on this.

[0062] In this embodiment, the HVAC equipment 1 is an air conditioner (in other embodiments of the present invention, the HVAC equipment 1 includes, but is not limited to, multi-split air conditioners, heat pumps, water heaters, swimming pool machines, etc.), the first heat exchanger 2000 is an evaporator, and the second heat exchanger 3000 is a refrigerant. The first heat exchanger 2000 and the second heat exchanger 3000 are connected by a flow distribution assembly 1000 to achieve the distribution of refrigerant from the main gas / liquid collection pipe to multiple heat exchanger blocks. At this time, the valve structure also includes a refrigerant throttling valve 5000, which is connected and disposed between the flow distribution assembly 1000 and the second heat exchanger 3000.

[0063] In terms of overall design, such as Figures 1-10 As shown, the diversion assembly 1000 includes a distributor 100 and a first connecting pipe 200. The distributor 100 includes a housing 10 and a plate 20. The housing 10 has an inlet hole 111 and an expansion cavity 103 communicating with the inlet hole 111. The expansion cavity 103 has an opening located at its top. The plate 20 is disposed on the housing 10 and seals the opening. The plate 20 has multiple diversion holes 201, each corresponding to a first connecting pipe 200. The plate 20 has a plug-in portion 204, which is adapted to connect with the first connecting pipe 200. The plug-in portion 204 has an extension structure 2041 protruding from the plate 20, and the extension structure 2041 has diversion holes 201 concentrically arranged with the first connecting pipe 200.

[0064] Specifically, by providing a housing 10 with an expansion cavity 103, refrigerant can be quickly introduced into each of the distribution holes 201 of the plate 20, which helps to improve the flow effect of the refrigerant. At the same time, by providing a plug-in part 204 on the plate 20, it can be adapted to connect with the first connecting pipe 200, thereby effectively increasing the contact area between the first connecting pipe 200 and the plate 20, improving the connection strength between the distributor 100 and the first connecting pipe 200, helping to solve the problem of poor overlap effect between existing distributors and distribution pipes, and also helping to solve the alignment problem between multiple components during mating, and providing convenience for subsequent welding. At this time, the distribution assembly 1000 can use both plug-in and welding connection methods to further improve the connection strength between the distributor 100 and the first connecting pipe 200.

[0065] Furthermore, the insertion part 204 not only provides positioning for the insertion connection of the first connecting pipe 200, but also eliminates the need for a cover plate, simplifying the structural composition of the flow divider assembly 1000, improving welding reliability, and contributing to better assembly performance of the flow divider assembly 1000. Simultaneously, the insertion part 204 also helps to disrupt the refrigerant flow direction, improving refrigerant mixing.

[0066] It should be understood that the dispenser 100 includes a housing 10 and a plate 20. For example... Figure 2 , Figure 3 and Figure 6 As shown, the housing 10 has a hemispherical structure, and the interior of the housing 10 defines a flow-dividing cavity. In this embodiment, the flow-dividing cavity includes an expansion cavity 103 and a mounting cavity 104. An inlet hole 111 and a mounting cavity 104 are respectively provided at both ends of the expansion cavity 103. From the direction of the inlet hole 111 towards the mounting cavity 104, i.e., the flow direction of the refrigerant, the inner diameter of the expansion cavity 103 gradually increases. At this time, the minimum inner diameter of the expansion cavity 103 is the same as the diameter of the inlet hole 111, and the maximum inner diameter of the expansion cavity 103 is the same as the diameter of the mounting cavity 104. The mounting cavity 104 is connected to the outside and forms the opening of the flow-dividing cavity. The refrigerant entering the expansion cavity 103 from the inlet hole 111 changes its flow direction due to the change in the flow space, which allows the refrigerant to mix in the expansion cavity 103, improving the mixing effect. On the other hand, the change in the aperture of the expansion cavity 103 can guide the flow of refrigerant, and thus, in conjunction with the diversion hole 201, ensure that the refrigerant flows uniformly and quickly to the diversion hole 201.

[0067] In this embodiment, the plate 20 has a circular plate structure and is suitable for placement in the mounting cavity 104. The plate 20 and the inlet hole 111 are positioned on opposite sides of the expansion cavity 103, and the axis of the plate 20 and the axis of the inlet hole 111 are collinear. Simultaneously, the plate 20 has multiple diversion holes 201 arranged around the axis of the plate 20. Each diversion hole 201 is connected to a first connecting pipe 200 to regulate flow distribution. The diversion holes 201 and the first connecting pipes 200 are concentrically arranged. By ensuring that the axis of the plate 20 and the axis of the inlet hole 111 are collinear, and in conjunction with the structure of the expansion cavity 103, the refrigerant can be evenly distributed to each diversion hole 201, ensuring the uniformity of the refrigerant flow while achieving refrigerant diversion.

[0068] It should be noted that, in this embodiment, the housing 10 includes a main body (not shown in the figure) and a mounting portion 12. The main body defines an expansion cavity 103 for distributing and mixing the refrigerant. The mounting portion 12 is located on one side of the main body for mounting the plate 20 or other components. The mounting portion 12 defines a mounting cavity 104, the diameter of which is the same as the maximum inner diameter of the expansion cavity 103.

[0069] Furthermore, in this embodiment, the housing 10 can be manufactured by spinning, rolling, or stamping at both ends. Besides the aforementioned hemispherical structure, the housing 10 can also be configured in other shapes, such as a cylindrical tube or a square tube, to ensure the installation and fixation of the expansion cavity 103 and the plate 20. Optionally, the plate 20 is fixed to the mounting cavity 104 of the housing 10 by welding.

[0070] Furthermore, the side (top surface) of the plate 20 away from the expansion cavity 103 is the welding surface. When the insertion part 204 is adapted to connect with the first connecting pipe 200, if the first connecting pipe 200 is sleeved on the outside of the insertion part 204, the welding surface is welded and fixed to the end of the first connecting pipe 200; if the first connecting pipe 200 is inserted into the inside of the insertion part 204, the welding surface is welded and fixed to the circumferential surface of the first connecting pipe 200. At this time, the extension structure 2041 can disrupt the flow direction of the refrigerant, thereby improving the mixing effect of the refrigerant.

[0071] In this embodiment, the first connecting pipe 200 has a straight segment that is adapted to connect with the insertion part 204, and the straight segment is concentrically arranged with the diversion hole 201. The straight segment is a rigid structure, meaning that under normal circumstances, the straight segment of the first connecting pipe 200 is not easily bent. This arrangement helps to further ensure the fit between the first connecting pipe 200 and the insertion part 204, facilitating subsequent welding processes.

[0072] Furthermore, the insertion part 204 is configured as a hole, and one end of the first connecting tube 200 is inserted into the insertion part 204. The extension structure 2041 is located inside the expansion cavity 103. The extension structure 2041 has a limiting plate 2042 arranged parallel to the plate 20. The limiting plate 2042 abuts against the first connecting tube 200, and the diversion hole 201 is provided on the limiting plate 2042.

[0073] Specifically, by making the insertion part 204 into a hole shape, one end of the first connecting tube 200 can be inserted into the insertion part 204, thereby providing a connection basis for subsequent welding. Furthermore, the extension structure 2041, located inside the expansion cavity 103, can disrupt the flow direction of the refrigerant in the expansion cavity 103, thereby further improving the mixing effect of the refrigerant. Simultaneously, the setting of the limiting plate 2042 allows it to abut against the end of the first connecting tube 200, which on the one hand limits the insertion depth of the first connecting tube 200 and improves the positioning effect of the first connecting tube 200. On the other hand, the limiting plate 2042 serves as the basis for opening the diversion hole 201, and the diversion hole 201 is concentrically arranged with the first connecting tube 200, which helps to further improve the mixing effect of the refrigerant.

[0074] It is necessary to understand that, such as Figures 3 to 7 As shown, the plate 20 is provided with a plurality of insertion portions 204, which are configured as holes. An extension structure 2041 protrudes from one end face of the plate 20 and forms an extension of the insertion portion 204. This extension structure 2041 has a limiting plate 2042, on which a diversion hole 201 is provided. The limiting plate 2042 and the diversion hole 201 are concentrically arranged. In this embodiment, the insertion portion 204 is configured as a round hole, and the first connecting pipe 200 is inserted into the insertion portion 204 and abuts against the limiting plate 2042. When the plate 20 is disposed in the mounting portion 12 of the housing 10, the extension structure 2041 is located inside the expansion cavity 103. The diameter of the diversion hole 201 is smaller than the inner diameter of the first connecting pipe 200. The extension structure 2041, and by limiting the diameter of the diversion hole 201, helps to achieve multiple changes in the local flow direction of the refrigerant, thereby improving the mixing effect of the refrigerant.

[0075] It should be noted that the thickness of the plate 20 is 2 to 4 times the depth of the extension structure 2041. Furthermore, the extension structure 2041 is spaced apart from the inner wall of the expansion cavity 103. The extension structure 2041 helps to further improve the structural strength of the plate 20, and also helps to ensure the insertion depth of the first connecting pipe 200, thereby improving the installation effect of the first connecting pipe 200 and the convenience of welding.

[0076] Furthermore, the plate 20 is disposed in the mounting portion 12 of the housing 10, that is, the plate 20 is accommodated in the mounting cavity 104. For example... Figure 3 and Figure 6 As shown, the side of the plate 20 facing away from the expansion cavity 103 is spaced apart from the end face of the housing 10. When the first connecting pipe 200 is inserted into the plate 20, a welding slit is formed between the first connecting pipe 200 and the inner wall of the mounting part 12, which helps to further improve the welding effect, thereby ensuring the fixing effect of the first connecting pipe 200 and ensuring the assembly effect of the distributor 100.

[0077] Furthermore, a protrusion 2043 is provided on the limiting plate 2042, and the protrusion 2043 is arranged circumferentially along the diversion hole 201.

[0078] Specifically, by providing a protrusion 2043 on the limiting plate 2042, it is helpful to further change the flow direction of the refrigerant and improve the turbulence effect on the refrigerant. At the same time, the protrusion 2043 is arranged circumferentially along the diversion hole 201, which helps to increase the thickness of the diversion hole 201. On the one hand, this helps to ensure the effectiveness of diversion and the adjustment effect of diversion. On the other hand, it can effectively prevent the diversion hole 201 from being blocked during the welding process.

[0079] It is necessary to understand that, such as Figure 6 and Figure 7 As shown, a protrusion 2043 protrudes from the side of the limiting plate 2042 opposite to the expansion cavity 103, that is, the protrusion 2043 is disposed inside the insertion part 204. Optionally, the protrusion 2043 is configured as an annular structure, and the protrusion 2043 is disposed circumferentially along the diversion hole 201, which helps to increase the thickness of the diversion hole 201 to ensure effective diversion, and can also effectively prevent blockage of the diversion hole 201 during welding. Moreover, the arrangement of the protrusion 2043 can also allow the refrigerant to form a swirling part when it enters the first connecting pipe 200 through the diversion hole 201, thereby further improving the mixing effect of the refrigerant and the flow rate of the refrigerant.

[0080] It should be noted that, in addition to being configured as an annular structure, the protrusion 2043 can also be configured as multiple protrusions, and the multiple protrusions are arranged at intervals along the circumference of the diversion hole 201. This arrangement is also beneficial for the adjustment of the diversion.

[0081] Furthermore, the aforementioned plug-in portion 204 and diversion hole 201 are made by stamping. In this case, the plug-in portion 204 is a recessed structure. This configuration not only eliminates the need for the top cover plate, but also allows the pre-stamped recess on the plate 20 to serve as the welding lap surface of the first connecting pipe 200, thereby simplifying the component structure and improving welding reliability.

[0082] Furthermore, the insertion part 204 is configured as a column, the extension structure 2041 is disposed on the side of the plate 20 away from the expansion cavity 103, and the first connecting tube 200 is sleeved on the extension structure 2041.

[0083] Specifically, in addition to setting the insertion part 204 as the aforementioned hole-shaped structure, the insertion part 204 can also be set as a column. This helps to improve the structural strength of the plate 20, and allows the first connecting pipe 200 to be sleeved on the extension structure 2041 of the insertion part 204. In this case, the end face of the first connecting pipe 200 abuts against one end face of the plate 20, providing a connection basis for subsequent welding. At the same time, the diversion hole 201 passes through the plate 20 to facilitate communication between the expansion cavity 103 and the first connecting pipe 200, thereby ensuring the flow effect of the refrigerant.

[0084] It is necessary to understand that, such as Figures 8 to 10 As shown, the plate 20 is provided with several insertion portions 204, each with a columnar structure. An extension structure 2041 protrudes from one end face of the plate 20, forming an extension of the insertion portion 204. When the plate 20 is mounted on the housing 10, the extension structure 2041 is located on the side of the plate 20 facing away from the expansion cavity 103. At this time, the first connecting pipe 200 is sleeved on the extension structure 2041, and the diversion hole 201 passes through the plate 20 to connect the expansion cavity 103 and the first connecting pipe 200. The extension structure 2041 helps to enhance the structural strength of the plate 20. Simultaneously, the sleeved connection between the first connecting pipe 200 and the plate 20 helps to ensure the installation effect of the first connecting pipe 200 and facilitates welding.

[0085] It should be noted that the plate 20 is disposed in the mounting portion 12 of the housing 10, that is, the plate 20 is accommodated in the mounting cavity 104. For example... Figure 9 As shown, the thickness of the plate 20 is the same as the depth of the mounting cavity 104. At this time, the side of the plate 20 away from the expansion cavity 103 is on the same plane as the end face of the housing 10. The welding position between the plate 20 and the housing 10 is on the same plane as the welding position between the plate 20 and the first connecting pipe 200. This helps improve the ease of welding and ensures the assembly effect of the distributor 100.

[0086] Furthermore, a turbulence cavity 20411 is provided on the side of the insertion part 204 facing the expansion cavity 103. The inner diameter of the turbulence cavity 20411 is larger than the diameter of the diversion hole 201 and smaller than the inner diameter of the first connecting pipe 200.

[0087] Specifically, the turbulence cavity 20411 helps to increase the size of the turbulence space, thereby improving the mixing effect of the refrigerant. By limiting the inner diameter of the turbulence cavity 20411 to be larger than the diameter of the diversion hole 201 and smaller than the inner diameter of the first connecting pipe 200, it helps to further disrupt the flow direction of the refrigerant, thereby improving the mixing effect of the refrigerant.

[0088] It is necessary to understand that, such as Figure 9 and Figure 10As shown, a turbulence cavity 20411 is provided on the side of the insertion part 204 facing the expansion cavity 103. When the plate 20 is placed inside the mounting cavity 104, the turbulence cavity 20411 and the expansion cavity 103 cooperate to form a turbulence space, thereby helping to improve the flow distribution and turbulence effect of the distributor 100. Meanwhile, the inner diameter of the turbulence cavity 20411 is slightly smaller than the inner diameter of the first connecting pipe 200. "Slightly smaller" means that the inner diameter of the turbulence cavity 20411 is 75% to 95% of the inner diameter of the first connecting pipe 200. Specifically, the inner diameter of the turbulence cavity 20411 is 75%, 80%, 85%, 90%, or 95% of the inner diameter of the first connecting pipe 200. The inner diameter of the turbulence cavity 20411 is 2 to 4 times the inner diameter of the first connecting pipe 200. Optionally, the inner diameter of the turbulence cavity 20411 is twice the inner diameter of the first connecting pipe 200. By limiting the inner diameter of the turbulence cavity 20411 to be larger than the diameter of the diversion orifice 201 and smaller than the inner diameter of the first connecting pipe 200, the refrigerant's flow direction changes due to the increased flow space after entering the first connecting pipe 200, thereby improving the refrigerant's mixing effect. Furthermore, since the diversion orifice 201 and the first connecting pipe 200 are concentrically arranged, the refrigerant flow is more uniform, ensuring a better mixing effect.

[0089] It should be noted that, in this embodiment, the turbulence cavity 20411 is provided such that a limiting plate 2042 parallel to the plate body 20 is formed on the insertion portion 204. Simultaneously, a protrusion 2043 protrudes from the side of the limiting plate 2042 facing away from the plate body 20, and in this case, the protrusion 2043 is located outside the insertion portion 204. Optionally, the protrusion 2043 is the same as the protrusion 2043 described above, and will not be elaborated further here.

[0090] In addition, besides being provided on the side of the insertion part 204 facing the expansion cavity 103, the turbulence cavity 20411 can also be provided in two, and in the vertical direction, the two turbulence cavities 20411 are correspondingly provided on the two sides of the insertion part 204. In this case, the aforementioned limiting plate 2042 is formed between the two turbulence cavities 20411. The above structure is not shown in the figure. The arrangement of the two turbulence cavities 20411 can work together to further improve the turbulence effect and improve the mixing effect of the refrigerant.

[0091] Furthermore, the plate 20 includes a substrate and a weldment for connection, the substrate and the weldment are integrally formed and define an insertion portion 204, the weldment abutting against the first connecting pipe 200.

[0092] Specifically, by setting the plate 20 as both the substrate and the weldment, the substrate and the weldment can be integrally formed by stamping to form the insertion part 204. After the connecting pipe is inserted or fitted with the extension structure 2041, the welding work between the first connecting pipe 200 and the plate 20 does not require the addition of solder or weld rings, which helps to simplify the subsequent construction process.

[0093] It should be understood that in this embodiment, the substrate and the weldment are integrally formed by stamping, which simplifies the manufacturing process. Furthermore, the weldment is located on the side of the plate 20 facing the first connecting pipe 200. This allows the first connecting pipe 200 and the plate 20 to be directly welded together without the need for solder, simplifying subsequent assembly or connection processes. The material of the weldment is connected to the material of the first connecting pipe 200 to better ensure the welding effect.

[0094] Furthermore, the first connecting pipe 200 is a rigid component. Specifically, by defining the first connecting pipe 200 as a rigid component, it is helpful to achieve automated welding of the first connecting pipe 200 to the plate 20 and to ensure the structural strength of the first connecting pipe 200. Since multiple first connecting pipes 200 can be connected to multiple connection ports of the first heat exchanger 2000 respectively, it is helpful to achieve automated welding of the first connecting pipes 200 to the first heat exchanger 2000, thereby helping to prevent the problem of springback after the first connecting pipes 200 are connected.

[0095] It should be understood that in this embodiment, one end of the first connecting pipe 200 is connected to the insertion part 204, and the other end of the first connecting pipe 200 is provided with a first adapter 60. The first connecting pipe 200 is a rigid component, meaning it is a part that is not easily bent under normal circumstances. Optionally, the first connecting pipe 200 is a metal component, and its material can be aluminum, magnesium alloy, stainless steel, carbon steel, brass, etc. Figure 2 As shown, multiple first connecting pipes 200 extend along different preset paths. The end of each first connecting pipe 200 that mates with the insertion part 204 defines the aforementioned straight segment. By making the pipe body a rigid component, the mating connection between the first connecting pipe 200 and the insertion part 204 is facilitated, enabling subsequent welding and fixing, and effectively preventing the first connecting pipe 200 from springing back after being inserted into the heat exchanger. The first connecting pipe 200 has a simple overall structure and is easy to manufacture, helping to reduce processing costs and minimizing the external dimensions of the distributor 100. This reduces the space requirements, saving design space and achieving a lightweight design.

[0096] In this embodiment, one end of the first adapter 60 is inserted into the first connecting pipe 200, and the first adapter 60 is adapted to connect to the connection port of the first heater. The connection method includes, but is not limited to, screw connection, snap connection, snap-fit ​​connection, riveting, bonding, welding, etc. Optionally, the first adapter 60 and the connection port are fixed by welding.

[0097] It should be noted that the material of the first adapter 60 is the same as that of the connector, which helps to improve the connection effect between the first connector and the connector, thereby ensuring the stability of the connection. The material of the first adapter 60 and the first connecting pipe 200 may be the same or different, and no further restrictions are imposed here. Optionally, the first adapter 60 may be made of brass, stainless steel, etc.

[0098] Furthermore, the diversion assembly 1000 also includes a diversion cone 30, which is disposed on the plate 20, and the axis of the diversion cone 30 is on the same straight line as the axis of the inflow hole 111.

[0099] Specifically, the arrangement of the flow divider cone 30 can, on the one hand, cooperate with the structure of the expansion cavity 103 to remix the gas-liquid refrigerant flowing into the expansion cavity 103 from the inlet pipe 301, thereby helping to improve the mixing effect of the distributor 100; on the other hand, it can also form a flow guide surface in the flow divider cavity, so that the refrigerant can flow evenly to each flow divider hole 201 under the action of the flow divider cone 30 after entering the expansion cavity 103, thus ensuring the flow divider effect of the flow divider assembly 1000.

[0100] It is necessary to understand that, such as Figure 3 , Figure 6 and Figure 9 As shown, a flow divider cone 30 is provided on the plate 20. The cone line of the flow divider cone 30 is collinear with the axis of the inlet hole 111. Multiple flow dividers 201 are spaced apart circumferentially along the flow divider cone 30 and spaced apart from it. In this embodiment, the flow divider cone 30 has a small-diameter end and a large-diameter end, with the large-diameter end connected to the plate 20. Optionally, the small-diameter end is disposed in the expansion cavity 103 and corresponds to the inlet hole 111. In this case, the refrigerant entering the expansion cavity 103 from the inlet hole 111 impacts the small-diameter end of the flow divider cone 30 and, under the action of the cone surface of the flow divider cone 30, flows to each flow divider hole 201, helping to ensure the uniformity and speed of refrigerant flow.

[0101] It should be noted that, in addition to placing the small-diameter end in the expansion cavity 103, the small-diameter end can also be placed on the side opposite to the expansion cavity 103, that is, inside the mounting cavity 104. In this case, the internal hollowing-out arrangement of the flow divider cone 30 forms a conical flow guiding space. The refrigerant entering the expansion cavity 103 from the inlet hole 111 will impact the small-diameter end of the flow divider cone 30, and under the action of the conical surface of the flow divider cone 30, it will flow to each flow divider hole 201. Since the inlet hole 111 and the small-diameter end are on the same straight line, the flow guiding space is on the same horizontal plane, and the pressure is the same or similar everywhere, which helps to ensure the uniformity of refrigerant flow.

[0102] In this embodiment, the diversion cone 30 and the plate 20 are separate structures. Specifically, a clearance hole 203 is provided in the middle of the plate 20, the diversion cone 30 is disposed in the clearance hole 203, and the small-diameter end of the diversion cone 30 is located in the expansion cavity 103. The diversion cone 30 is disposed in the clearance hole 203 of the plate 20, and the diversion cone 30 is welded and fixed to the plate 20. This arrangement helps to adjust the insertion depth of the diversion cone 30, ensuring the distance between the diversion cone 30 and the inflow hole 111, which helps to improve the applicability of the distributor 100 and adjust the diversion effect. On the other hand, the diversion cone 30 can be set as a cone, triangular pyramid, square pyramid, pentagonal pyramid, etc., to adapt to the number of diversion holes 201, ensuring the diversion effect. At the same time, it helps to increase the diversity of the diversion cone 30, thereby improving the applicability of the distributor 100.

[0103] It should be understood that, as shown in the figure, the flow divider cone 30 includes a cone 31, an extension 32, and a second flange 33. The cone 31, extension 32, and second flange 33 are connected sequentially in the direction from the inlet hole 111 towards the plate 20. The extension 32 is adapted to the inner wall of the clearance hole 203. Optionally, the cone 31 is disposed inside the expansion cavity 103, and the second flange 33 is fitted and connected to the side of the plate 20 opposite to the expansion cavity 103. By providing the extension 32, which can cooperate with the clearance hole 203, a sealed connection between the plate 20 and the flow divider cone 30 is achieved. Meanwhile, the second flange 33 helps to further improve the sealing effect between the plate 20 and the flow divider cone 30; on the other hand, it can also improve the assembly efficiency of the plate 20 and the flow divider cone 30, thereby improving the assembly effect of the distributor 100; thirdly, the second flange 33 can increase the welding area between the flow divider cone 30 and the plate 20, which helps to further improve the connection effect between the flow divider cone 30 and the plate 20.

[0104] It should be noted that when the cone of the flow divider cone 30 is set in the mounting cavity 104, the second flange 33 is attached to the side of the plate 20 facing the expansion cavity 103. At this time, the welding position between the flow divider cone 30 and the plate 20 is the connection between the cone and the plate 20. This setting helps to reduce the impact of welding on the flow of refrigerant, so as to ensure the effect of the flow divider cone 30.

[0105] Furthermore, the flow divider cone 30 can also be composed solely of a cone 31 and an extension 32. Optionally, the end face of the extension 32 facing away from the cone 31 can be on the same plane as the mounting surface to ensure ease of welding. Alternatively, the end face of the extension 32 facing away from the cone 31 can also be parallel to the mounting surface, meaning the extension 32 extends to the side of the plate 20 facing away from the expansion cavity 103, or the extension 32 can be positioned inside the clearance hole 203.

[0106] In some other embodiments of this application, the diverting cone 30 and the plate 20 are integrally formed. By making the diverting cone 30 and the plate 20 integrally formed, the manufacturing and assembly difficulty of the distributor 100 is reduced. Optionally, the diverting cone 30 and the plate 20 are integrally stamped. This results in a simple structure and convenient manufacturing. In this case, the internal hollowing-out design of the diverting cone 30 helps reduce the manufacturing cost of the distributor 100 and ensures the guiding effect of the diverting cone 30.

[0107] Furthermore, the distributor 100 has a first insert portion 11 that defines an inlet / outlet port 111. Meanwhile, the diversion assembly 1000 also includes a second connecting tube 300 that is sleeved on the outside of the first insert portion 11.

[0108] Specifically, by providing a first insertion part 11 on the distributor 100 so that it can be inserted and connected to the second connecting pipe 300, the assembly difficulty of the diversion assembly 1000 is reduced and the assembly efficiency of the diversion assembly 1000 is improved.

[0109] It is necessary to understand that, such as Figure 3 , Figure 6 and Figure 9 As shown, the bottom of the distributor 100 protrudes outward and forms a first insert portion 11. The interior of the first insert portion 11 defines an inlet hole 111. Simultaneously, a second connecting pipe 300 is sleeved on the outside of the first insert portion 11. In this embodiment, the second connecting pipe 300 includes an inlet pipe 301, the interior of which defines a cavity. This cavity includes an injection cavity 101 and a connecting cavity (not shown in the figure). The injection cavity 101 is used for the inflow of refrigerant, and the connecting cavity is sleeved on the outside of the first insert portion 11 so that the refrigerant flowing through the injection cavity 101 enters the expansion cavity 103 through the inlet.

[0110] In this embodiment, the inner diameter of the injection cavity 101 is larger than the inner diameter of the connecting cavity. A transition cavity (not shown in the figure) is also provided between the injection cavity 101 and the connecting cavity to ensure that the refrigerant can enter the inlet hole 111. At this time, along the refrigerant flow path, the inlet pipe 301 and the housing 10 cooperate to form the injection cavity 101, the flow stabilizing cavity 102 (inlet hole 111), and the expansion cavity 103, which are connected in sequence. By limiting the inner diameters of the injection cavity 101, the flow stabilizing cavity 102, and the expansion cavity 103, the inlet pipe 301 and the housing 10 cooperate to form a Venturi tube structure, thereby increasing the flow velocity by reducing the flow area and creating a low-pressure area at the throat. The change in refrigerant flow velocity helps to further improve the refrigerant mixing effect and increase the refrigerant flow velocity to each diversion hole 201, thus ensuring the diversion effect of the diversion assembly 1000.

[0111] It should be noted that, in addition to fitting the inlet pipe 301 onto the outside of the first insert portion 11, the end of the inlet pipe 301 near the expansion cavity 103 can also be inserted into the inflow hole 111. Of course, besides the insert method, other methods such as screw connection, flange connection, or welding can also be used. Optionally, multiple welded parts can be provided at the connection between the inlet pipe 301 and the first insert portion 11 to further improve the connection effect between the inlet pipe 301 and the first insert portion 11.

[0112] In addition, the inlet pipe 301 and the housing 10 can be configured as an integrally formed part. This configuration helps to improve the structural strength of the diversion assembly 1000 and improve the assembly efficiency of the diversion assembly 1000.

[0113] Furthermore, the second connecting pipe 300 also includes an inlet pipe 301 and a second adapter 70. The inlet pipe 301 is sleeved on the first insert portion 11 and has an inlet cavity 101, the inner diameter of which is larger than the inner diameter of the inlet hole 111. The second adapter 70 is inserted at the end of the inlet pipe 301 opposite to the inlet hole 111.

[0114] Specifically, by setting the inlet pipe 301, the flow distribution assembly 1000 can form a Venturi tube structure at the connection between the second connecting pipe 300 and the housing 10, thereby increasing the flow velocity of the refrigerant after it enters the distributor 100 from the second connecting pipe 300, and improving the refrigerant distribution and mixing effect in conjunction with the flow distribution cone 30. Simultaneously, the setting of the second adapter 70 allows the inlet pipe 301 to communicate with other connection structures, and by changing the material of the second adapter 70, the inlet pipe 301 can be inserted and welded to other connection structures, thus improving the applicability of the inlet pipe 301 and consequently improving the applicability of the flow distribution assembly 1000.

[0115] It should be understood that the second connecting pipe 300 includes an inlet pipe 301 and a connecting pipe (not shown in the figure). In this embodiment, the inlet pipe 301 and the connecting pipe are connected by a second adapter 70. The second adapter 70 is inserted into the inlet pipe 301, and the second adapter 70 is made of the same material as the inlet pipe 301. By setting a welding point at the connection between the second adapter 70 and the inlet pipe 301, the connection effect between the second adapter 70 and the inlet pipe 301 can be further improved. The inlet pipe 301 is designed to cooperate with the housing 10 to form a Venturi tube structure, and the second adapter 70 further improves the applicability of the flow distribution assembly 1000, resulting in a better connection effect between the inlet pipe 301 and the connecting pipe, ensuring the stability of refrigerant transmission, and extending the service life of the flow distribution assembly 1000.

[0116] It should be noted that, in addition to the above connection method, the connecting pipe and the inlet pipe 301 can be directly connected. Optionally, the connecting pipe can be screwed onto the outer circumferential surface of the inlet pipe 301, or the connecting pipe and the inlet pipe 301 can be made of the same material, so that the connecting pipe and the inlet pipe 301 can be welded and fixed.

[0117] The second aspect of this utility model also provides a heating, ventilation and air conditioning (HVAC) device 1, which includes a first heat exchanger 2000, a second heat exchanger 3000, and a distribution assembly 1000, wherein the distribution assembly 1000 is the aforementioned distribution assembly 1000, and at this time, the first connecting pipe 200 is connected to the first heat exchanger 2000, and the distributor 100 is connected to the second heat exchanger 3000.

[0118] Compared with the prior art, the HVAC equipment 1 proposed in this invention has the technical advantages of the above-mentioned diversion component 1000, which will not be elaborated here.

[0119] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A shunt component, characterized in that, Includes a distributor and a plurality of first connecting pipes; the distributor includes: A housing having an inlet orifice and an expansion cavity communicating with the inlet orifice, the expansion cavity having an opening; A plate body is disposed on the housing and seals the opening. The plate body is provided with a plurality of plug-in parts, which are spaced apart circumferentially along the inflow hole. The plug-in parts are adapted to be connected to the first connecting pipe. The plug-in parts have an extension structure protruding from the plate body. The extension structure is provided with a diversion hole, which is concentrically arranged with the first connecting pipe.

2. The shunt component according to claim 1, characterized in that, The plug-in portion is configured as a hole, and one end of the first connecting tube is inserted into the inside of the plug-in portion; The extension structure is located inside the expansion cavity. The extension structure has a limiting plate arranged parallel to the plate body. The limiting plate abuts against the first connecting pipe. The diversion hole is disposed on the limiting plate.

3. The shunt component according to claim 2, characterized in that, The limiting plate is provided with a protrusion, which is arranged circumferentially along the diversion hole.

4. The shunt component according to claim 1, characterized in that, The insertion part is configured as a column, the extension structure is disposed on the side of the plate away from the expansion cavity, and the first connecting tube is sleeved on the extension structure.

5. The shunt component according to claim 4, characterized in that, A turbulence cavity is provided on the side of the plug portion facing the expansion cavity. The inner diameter of the turbulence cavity is larger than the diameter of the diversion hole and smaller than the inner diameter of the first connecting pipe.

6. The shunt component according to claim 1, characterized in that, The first connecting pipe is a rigid component.

7. The shunt component according to claim 1, characterized in that, The splitter component also includes: A flow divider cone is disposed on the plate, and the axis of the flow divider cone is on the same straight line as the axis of the inflow hole.

8. The shunt assembly according to claim 7, characterized in that, The plate is provided with a clearance hole, and the diversion cone includes a cone, an extension section and a second flange connected in sequence. The cone is disposed inside the expansion cavity, the extension section is adapted to the inner wall of the clearance hole, and the second flange is fitted and connected to the side of the plate away from the expansion cavity.

9. The shunt component according to claim 1, characterized in that, The plate includes a substrate and a welded component connected together. The substrate and the welded component are integrally formed and define the insertion portion. The welded component abuts against the first connecting pipe.

10. The shunt assembly according to any one of claims 1 to 9, characterized in that, The dispenser has a first insert portion that defines the inlet orifice; The diversion assembly further includes a second connecting tube, which is sleeved on the outside of the first insert portion.

11. The shunt assembly according to claim 10, characterized in that, The second connecting pipe also includes: An inlet pipe is sleeved on the first insert portion, and the inlet pipe has an injection cavity, the inner diameter of which is larger than the inner diameter of the inflow hole; The second adapter is inserted into the end of the inlet pipe opposite to the inflow hole.

12. A heating, ventilation, and air conditioning (HVAC) device, characterized in that, include: First heat exchanger; Second heat exchanger; The flow distribution assembly as described in any one of claims 1-11, wherein the first connecting pipe is connected to the first heat exchanger, and the distributor is connected to the second heat exchanger.

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