Flow dividing assembly and heating and ventilation equipment

Abstract

The utility model particularly relates to a shunting assembly and heating and ventilation equipment, the shunting assembly is used for the heating and ventilation equipment, and the shunting assembly comprises a shell, a plate body, a first connecting pipe and an inlet pipe. The shell is provided with an inflow hole and an expansion cavity communicated with the inflow hole, an opening is formed in the side, away from the inflow hole, of the expansion cavity, and the inner diameter of the expansion cavity is gradually increased in the direction from the inflow hole to the opening. The plate body is arranged on the shell and blocks the opening, and the plate body is provided with a plurality of flow dividing holes. The first connecting pipes are connected to the plate body, and each flow dividing hole is correspondingly communicated with one first connecting pipe. The inlet pipe is connected to the shell and communicated with the inflow hole, the inlet pipe and the shell are matched to form an incidence cavity, a flow stabilizing cavity and an expansion cavity which are sequentially communicated, the inner diameter of the incidence cavity is larger than that of the flow stabilizing cavity, and the inner diameter of the flow stabilizing cavity is smaller than or equal to the hole diameter of the inflow hole. According to the flow dividing assembly, the flow dividing assembly is arranged to be of a split type structure, the machining difficulty of a distributor can be effectively reduced, and the feasibility of flow dividing performance design is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of HVAC equipment, in particular to a diversion component and HVAC equipment. Background Art

[0002] HVAC equipment often uses distributors and capillary tubes to distribute two-phase refrigerant on demand, achieving a precise match between refrigerant flow and heat exchange field. Specifically, the distributor initially mixes the two phases of refrigerant, achieving uniform mixing within the liquid separation chamber. Capillary tubes are then used at the back end to adjust the flow rate.

[0003] At present, distributors are mostly made of brass one-piece machines, which are expensive, and the performance design is often limited by the machining process and cannot achieve optimal performance. In addition, capillaries of different diameters or lengths are often used to adjust the refrigerant. The capillaries are very flexible and difficult to weld and assemble. Their structural form has a great influence on the refrigerant distribution, and the product consistency is also poor. Utility Model Content

[0004] The purpose of the present invention is to at least solve the problem of high production cost and poor performance of existing dispensers. This purpose is achieved through the following technical solutions:

[0005] The first aspect of the present invention provides a flow diversion assembly for HVAC equipment, comprising:

[0006] a housing, the housing having an inlet hole and an expansion cavity connected to the inlet hole, the expansion cavity having an opening on a side facing away from the inlet hole, and an inner diameter of the expansion cavity gradually increasing from the inlet hole to the opening;

[0007] a plate body, the plate body being arranged on the shell and sealing the opening, the plate body having a plurality of diversion holes;

[0008] a first connecting pipe, wherein the number of the first connecting pipes is multiple, and the multiple first connecting pipes are respectively connected to the plate body, and each of the diversion holes is correspondingly connected to one of the first connecting pipes;

[0009] An inlet pipe is connected to the shell and communicated with the inlet hole. The inlet pipe cooperates with the shell to form an incident cavity, a steady flow cavity and an expansion cavity that are connected in sequence. The inner diameter of the incident cavity is larger than the inner diameter of the steady flow cavity, and the inner diameter of the steady flow cavity is less than or equal to the aperture of the inlet hole.

[0010] The flow diversion assembly of the present invention comprises a housing, a plate, a first connecting pipe, and an inlet pipe. By arranging the plate on the housing, and connecting the plate and the housing to the first connecting pipe and the inlet pipe, respectively, to form a flow diversion structure, this arrangement effectively reduces the manufacturing difficulty and thus the cost of the distributor. Furthermore, the split structure of the flow diversion assembly helps improve the feasibility of the flow diversion performance design, thereby further optimizing the performance of the flow diversion assembly.

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

[0012] In some embodiments of the present invention, a first inserting portion is provided on the housing, the first inserting portion defines the inflow hole, and the inlet pipe is adaptively connected to the first inserting portion.

[0013] In some embodiments of the present invention, an insertion section is provided at one end of the inlet pipe facing the housing, and at least a portion of the insertion section passes through the inflow hole and extends into the interior of the expansion cavity;

[0014] Along the direction of the inlet pipe facing the shell, the first end of the insertion section is connected to the incident cavity, the second end of the insertion section is in a closed state and is located inside the expansion cavity, and along the circumference of the insertion section, a plurality of outflow holes are provided on the side wall of the insertion section, and the plurality of outflow holes are located inside the expansion cavity and are spaced apart from the plate body.

[0015] In some embodiments of the present invention, the inlet pipe and the housing are integrally formed.

[0016] In some embodiments of the present invention, the end of the inlet pipe facing away from the housing is in a closed state, and a side hole is provided on the wall of the inlet pipe;

[0017] The diversion assembly also includes an incoming flow pipe, one end of which is connected to the inlet pipe through the side hole, and the other end of which is used for the inflow of refrigerant, and the incoming flow pipe is arranged tangent to the inlet pipe.

[0018] In some embodiments of the present invention, the diversion component further comprises:

[0019] An inlet flow tube, wherein the first end of the inlet flow tube is connected to the inlet pipe and communicates with the incident cavity, the second end of the inlet flow tube is used for the inflow of refrigerant, and the inlet flow tube has a flow turbulence structure, and the flow turbulence structure is used to mix the refrigerant flowing from the second end of the inlet flow tube to the inlet pipe.

[0020] In some embodiments of the present invention, the diversion component further comprises:

[0021] A diverter cone is provided on the plate body, the diverter cone is coaxially arranged with the inflow hole, and the diverter cone is used to guide the refrigerant from the inflow hole to the diverter hole.

[0022] In some embodiments of the present invention, the diverter assembly further comprises a spoiler, and the spoiler is disposed between the inflow hole and the diverter hole;

[0023] And / or, the diversion component further includes a regulating structure, which is arranged inside the inlet pipe and is used to mix the refrigerant flowing from the incident cavity into the expansion cavity.

[0024] In some embodiments of the present invention, the plate includes:

[0025] a first plate body, the first plate body being disposed in the housing and blocking the opening, the first plate body having a plurality of the diversion holes;

[0026] The second plate body is connected to the side of the first plate body away from the expansion cavity, the second plate body has a plurality of insertion holes, the aperture of the insertion holes is larger than the aperture of the diversion hole, the first connecting pipe is inserted into the insertion hole and connected to the diversion hole.

[0027] In some embodiments of the present invention, a plurality of plug-in portions are provided on the plate body, and the plurality of plug-in portions are arranged at intervals along the circumference of the inflow hole. The plug-in portions are adaptably connected to the first connecting pipe, and the plug-in portions have an extension structure extending out of the plate body, and the diversion hole is provided on the extension structure, and the diversion hole is concentrically arranged with the first connecting pipe.

[0028] In some embodiments of the present invention, the diversion component further comprises:

[0029] A connecting member, the connecting member being arranged on a side of the plate body away from the expansion cavity, the connecting member having a plurality of plug holes, each of the plug holes correspondingly connected to one of the diversion holes;

[0030] The first connecting pipe is connected to the plate body through the connecting piece, one end of the first connecting pipe is inserted into each of the plug holes, and the diversion hole is communicated with the first connecting pipe.

[0031] In some embodiments of the present invention, the first connecting pipe includes a regulating pipe section and a circulation pipe section, the circulation pipe section is connected to the regulating pipe section, and a circulation area of ​​the regulating pipe section is smaller than a circulation area of ​​the circulation pipe section.

[0032] In some embodiments of the present invention, the diversion component further comprises:

[0033] A first adapter, one end of which is connected to an end of the first connecting pipe facing away from the plate body, and the other end of the first adapter is used to communicate with the first heat exchanger of the HVAC equipment.

[0034] In some embodiments of the present invention, the first connecting tube includes a rigid portion, and a ratio of a length of the rigid portion to a length of the first connecting tube is in a range of 60%-95%.

[0035] In some embodiments of the present invention, the first connecting pipe has a first connecting section and a second connecting section, the first connecting section is connected to the plate body, the second connecting section is used to communicate with the first heat exchanger of the HVAC equipment, and the extension direction of the first connecting section intersects with the extension direction of the second connecting section.

[0036] The second aspect of the present invention also provides a HVAC device, the HVAC device includes

[0037] a first heat exchanger;

[0038] a second heat exchanger;

[0039] As in the flow diversion assembly of the present invention, the first connecting pipe is in communication with the first heat exchanger, and the inlet pipe is in communication with the second heat exchanger.

[0040] Compared with the prior art, the HVAC equipment proposed in the present invention has the technical advantages possessed by the above-mentioned diversion components, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference numerals are used throughout the accompanying drawings to denote the same components. In the accompanying drawings:

[0042] Figure 1 Schematically shows the structural diagram of the HVAC equipment according to the embodiment of the utility model

[0043] Figure 2 for Figure 1 The structural diagram of the diversion component shown in FIG;

[0044] Figure 3 for Figure 2 A schematic diagram of one structure of the diversion component shown in ;

[0045] Figure 4 for Figure 2 An internal schematic diagram of a second structure of the diverter assembly shown in ;

[0046] Figure 5 for Figure 2 An internal schematic diagram of a third structure of the diverter assembly shown in FIG;

[0047] Figure 6 for Figure 2 An internal schematic diagram of a fourth structure of the diverter assembly shown in FIG;

[0048] Figure 7 for Figure 2 An internal schematic diagram of a fifth structure of the diverter assembly shown in FIG;

[0049] Figure 8 Schematically shows a structural diagram of a sheet metal part according to an embodiment of the present utility model;

[0050] Figure 9 for Figure 2 An internal schematic diagram of a sixth structure of the diverter assembly shown in FIG;

[0051] Figure 10 for Figure 7 The structural diagram of the incoming flow pipe shown in ;

[0052] Figure 11 for Figure 2 An internal schematic diagram of a seventh structure of the diverter assembly shown in FIG;

[0053] Figure 12 for Figure 2 An internal schematic diagram of an eighth structure of the diverter assembly shown in FIG;

[0054] Figure 13 for Figure 2 An internal schematic diagram of a ninth structure of the diverter assembly shown in FIG;

[0055] Figure 14 for Figure 2 A schematic diagram of another structure of the plate shown in ;

[0056] Figure 15 for Figure 2 An internal schematic diagram of a tenth structure of the diverter assembly shown in ;

[0057] Figure 16 for Figure 15 A schematic structural diagram of the diversion component shown in another perspective;

[0058] Figure 17 for Figure 2 A schematic diagram of a connection between the plate body and the first connecting pipe shown in ;

[0059] Figure 18 for Figure 2A schematic diagram of one structure of the distributor shown in ;

[0060] Figure 19 for Figure 2 Another structural schematic diagram of the distributor shown in;

[0061] Figure 20 for Figure 2 An internal schematic diagram of an eleventh structure of the diverter assembly shown in ;

[0062] Figure 21 for Figure 2 An internal schematic diagram of a twelfth structure of the diverter assembly shown in FIG;

[0063] Figure 22 for Figure 2 A schematic diagram of a third structure of the distributor shown in ;

[0064] Figure 23 for Figure 22 An enlarged schematic diagram of B in FIG;

[0065] Figure 24 for Figure 2 A schematic diagram of a fourth structure of the distributor shown in ;

[0066] Figure 25 for Figure 22 An enlarged schematic diagram of F in FIG;

[0067] Figure 26 for Figure 2 An internal schematic diagram of a thirteenth structure of the diverter assembly shown in FIG;

[0068] Figure 27 for Figure 2 An internal schematic diagram of a fourteenth structure of the diverter assembly shown in ;

[0069] Figure 28 for Figure 27 A schematic diagram of the structure of the connecting member shown in FIG;

[0070] Figure 29 for Figure 2 An internal schematic diagram of a fifteenth structure of the diverter assembly shown in FIG;

[0071] Figure 30 for Figure 28 A schematic diagram of the structure of the connecting member shown in FIG;

[0072] Figure 31 for Figure 2 A structural schematic diagram of one structure of the first connecting pipe shown in ;

[0073] Figure 32 for Figure 2A structural schematic diagram of another structure of the first connecting pipe shown in ;

[0074] Figure 33 for Figure 2 A schematic structural diagram of a third structure of the first connecting pipe shown in FIG;

[0075] Figure 34 for Figure 1 Schematic diagram of connection between the diverter assembly and the first heat exchanger shown in ;

[0076] Figure 35 for Figure 35 Schematic diagram of the internal structure of the connection between the diverter assembly and the first heat exchanger shown in .

[0077] The symbols in the accompanying drawings represent the following:

[0078] 1. HVAC equipment;

[0079] 1000, diversion assembly; 2000, first heat exchanger; 2001, inlet; 3000, second heat exchanger; 4000, compressor; 5000, refrigeration throttle valve; 6000, four-way valve;

[0080] 100. Distributor;

[0081] 200, first connecting pipe; 210, first flange; 230, adjustment pipe section; 2301, body; 2302, adjustment member; 2303, adjustment hole; 240, flow pipe section; 250, first connecting section; 260, second connecting section;

[0082] 300, second connecting pipe; 301, inlet pipe; 30101, cover plate; 3011, outflow hole; 3012, diameter reduction structure; 30121, insertion section; 30122, diameter reduction section; 301211, diameter reducing section; 3013, side hole; 3014, first lumen; 3015, second lumen; 30130, gradually expanding section;

[0083] 302, incoming flow pipe; 3021, first communicating hole; 3022, pipe body; 3023, end cap; 3024, threaded structure; 30241, first threaded section; 30242, second threaded section; 3025, first straight pipe section; 3026, curved pipe section; 3027, second straight pipe section;

[0084] 303, connecting seat;

[0085] 500, sheet metal; 501, notch;

[0086] 10. Shell; 101. Incident cavity; 102. Flow stabilization cavity; 103. Expansion cavity; 104. Installation cavity;

[0087] 11. First insertion portion; 111. Inflow hole; 12. Mounting portion;

[0088] 20. Plate body; 201. Diverter hole; 202. Insertion hole; 203. Avoidance hole; 2031. Positioning structure; 204. Insertion portion; 2041. Extension structure; 20411. Spoiler cavity; 2042. Limiting plate; 205. Mounting hole;

[0089] 21. First plate; 211. First step countersunk hole; 22. Second plate; 221. Second step countersunk hole;

[0090] 23. Reinforcement ribs; 24. Flanged structure; 25. Mounting slot;

[0091] 30. Diverter cone; 31. Cone; 32. Extension section; 33. Second flange; 311. Guide surface;

[0092] 40. Connector; 41. Connecting portion; 42. Cylinder; 410. Connecting hole;

[0093] 50, spoiler; 51, filter; 511, first filter; 5111, first filter cavity; 512, second filter; 5121, second filter cavity;

[0094] 60. First adapter;

[0095] 70. Second adapter;

[0096] 80. Orifice plate. DETAILED DESCRIPTION

[0097] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0098] It should be understood that the terms used in the text are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used in the text may also be meant to include plural forms. The terms "comprise", "include", "contain" and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0099] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0100] For ease of description, spatially relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," and the like. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped over, an element described as "below" or "beneath" another element or feature would then be oriented "above" or "above" the other element or feature. Thus, the example term "below" can encompass both above and below orientations.

[0101] like Figure 1-Figure 35As shown, the present invention proposes a diverter assembly 1000, which is used for a HVAC device 1. Specifically, the HVAC device 1 may include a compressor 4000, a valve structure, a first heat exchanger 2000, and a second heat exchanger 3000 that are connected to each other. The compressor 4000 is used to compress the refrigerant. The refrigerant compressed by the compressor 4000 can flow through the second heat exchanger 3000 and the first heat exchanger 2000 in sequence, and finally flow back to the compressor 4000. The valve structure includes a four-way valve 6000. The four-way valve 6000 has four connecting ports, two of which are connected to the output end and the input end of the compressor 4000 respectively, and the other two connecting ports are connected to the input end of the second heat exchanger 3000 and the output end of the first heat exchanger 2000 respectively.

[0102] The first heat exchanger 2000 and the second heat exchanger 3000 enable the HVAC equipment 1 to switch between two functions: evaporator and condenser, i.e., heating mode and cooling mode. In this case, one of the first heat exchanger 2000 and the second heat exchanger 3000 is located outside the target space and functions as an outdoor unit, while the other is installed inside the target space and functions as an indoor unit. The outdoor and indoor units work together to form a circulation flow path, enabling the HVAC equipment 1 to cool, heat, dehumidify, and purify the air in the target space, thereby achieving a comfortable target space. The HVAC equipment 1 can have one outdoor unit and multiple indoor units, which are not specifically limited in this embodiment.

[0103] In this embodiment, HVAC equipment 1 is an air conditioner (in other embodiments of the present invention, HVAC equipment 1 includes but is not limited to a multi-split unit, a heat pump, a water heater, a swimming pool unit, etc.), first heat exchanger 2000 is an evaporator, and second heat exchanger 3000 is a refrigerator. First heat exchanger 2000 and second heat exchanger 3000 are connected by a flow diversion assembly 1000 to divert refrigerant from the gas / liquid collecting main pipe to multiple heat exchanger blocks. The valve structure also includes a refrigeration throttle valve 5000, which is arranged in communication between the flow diversion assembly 1000 and the second heat exchanger 3000.

[0104] In terms of overall design, Figure 2 and Figure 3As shown, the diverter assembly 1000 includes a shell 10, a plate 20, a first connecting pipe 200, and an inlet pipe 301. The shell 10 has an inflow hole 111 and an expansion chamber 103 connected to the inflow hole 111. The expansion chamber 103 has an opening on the side facing away from the inflow hole 111. The inner diameter of the expansion chamber 103 gradually increases from the inflow hole 111 to the opening. The plate 20 is arranged on the shell 10 and blocks the opening. The plate 20 has a plurality of diverter holes 201. There are a plurality of first connecting pipes 200, and the plurality of first connecting pipes 200 are respectively connected to the plate 20. Each diverter hole 201 is connected to a corresponding first connecting pipe 200. The inlet pipe 301 is connected to the shell 10 and communicated with the inlet hole 111. The inlet pipe 301 cooperates with the shell 10 to form an incident chamber 101, a stabilizing flow chamber 102 and an expansion chamber 103 that are connected in sequence. The inner diameter of the incident chamber 101 is larger than the inner diameter of the stabilizing flow chamber 102, and the inner diameter of the stabilizing flow chamber 102 is less than or equal to the aperture of the inlet hole 111.

[0105] Specifically, by setting the plate body 20 on the shell 10, and the plate body 20 and the shell 10 are respectively connected to the first connecting pipe 200 and the inlet pipe 301 to form a diversion structure, such a setting can effectively reduce the processing difficulty of the distributor, thereby reducing the preparation cost of the distributor. At the same time, setting the diversion component as a split structure helps to improve the feasibility of the diversion performance design, thereby further optimizing the use effect of the diversion component.

[0106] It should be understood that, in the present embodiment, the shell 10 is a semi-spherical structure, and the interior of the shell 10 defines a diverter cavity. In the present embodiment, the diverter cavity includes an expansion cavity 103 and an installation cavity 104. The expansion cavity 103 is provided with an inflow hole 111 and an installation cavity 104 at both ends, and the inner diameter of the expansion cavity 103 gradually increases from the direction of the inflow hole 111 facing the installation cavity, that is, the flow direction of the refrigerant. At this time, the minimum inner diameter of the expansion cavity 103 is the same as the aperture of the inflow hole 111, and the maximum inner diameter of the expansion cavity 103 is the same as the aperture of the installation cavity. The installation cavity is connected to the outside and forms an opening of the diverter cavity. The refrigerant entering the expansion cavity 103 from the inflow hole 111 changes the flow direction of the refrigerant due to the change in the flow space. On the one hand, the refrigerant can be mixed in the expansion cavity 103, thereby improving the mixing effect. On the other hand, the change in the aperture of the expansion cavity 103 can guide the flow of the refrigerant, and further cooperate with the diversion hole 201 to ensure that the refrigerant flows to the diversion hole 201 evenly and quickly.

[0107] It should be noted that in this embodiment, the housing 10 includes a main body (not shown) and a mounting portion 12. The main body defines an expansion chamber 103 for diverting and mixing the refrigerant. The mounting portion 12 is located on one side of the main body and is used to mount the plate 20 or other components. The mounting portion 12 defines a mounting chamber with an aperture that is the same as the maximum inner diameter of the expansion chamber 103.

[0108] In this embodiment, the plate body 20 is a circular plate-shaped structure, and the plate body 20 is suitable for being set in the installation cavity 104. At this time, the plate body 20 and the inflow hole 111 are suitable for being set on opposite sides of the expansion cavity 103, and the axis of the plate body 20 and the axis of the inflow hole 111 are located in the same straight line. At the same time, a plurality of diversion holes 201 are opened on the plate body 20, and the plurality of diversion holes 201 are arranged around the axis of the plate body 20 as the center. A plurality of first connecting tubes 200 are connected to the plate body 20, and each diversion hole 201 is connected to a corresponding first connecting tube 200, so as to play a role in regulating flow distribution, and the diversion hole 201 and the first connecting tube 200 are arranged concentrically. By limiting the axis of the plate body 20 and the axis of the inflow hole 111 to be located in the same straight line, combined with the structure of the expansion cavity 103, it can be further ensured that the refrigerant can flow evenly to each diversion hole 201, and the sameness of the refrigerant is guaranteed in achieving the effect of refrigerant diversion.

[0109] It should be pointed out that in this embodiment, along the flow direction of the diverter hole 201, the flow cross-section of the diverter hole 201 is set to be circular. In addition, the flow cross-section of the diverter hole 201 can also be set to a square, prismatic, elliptical or triangular or pentagonal structure, etc., without any restrictions here. At the same time, in addition to being set to a cylindrical shape, the diverter hole 201 can also be set to a gradually converging or gradually expanding structure, which will not be described in detail here.

[0110] In this embodiment, the interior of the inlet pipe 301 defines a cavity, which includes an incident cavity 101 and a connecting cavity (not shown in the figure). The incident cavity 101 is used to supply the inflow of refrigerant, and the connecting cavity is connected to the expansion cavity 103, so that the refrigerant flowing through the incident cavity 101 enters the expansion cavity 103 through the inflow hole 111. The inner diameter of the incident cavity 101 is larger than the inner diameter of the connecting cavity. At the same time, a transition cavity (not shown in the figure) is provided between the incident cavity 101 and the connecting cavity to ensure that the refrigerant can enter the inflow hole 111. At this time, along the flow path of the refrigerant, the inlet pipe 301 cooperates with the shell 10 to form the incident cavity 101, the steady flow cavity 102, and the expansion cavity 103 connected in sequence. By limiting the inner diameters of the incident cavity 101, the steady flow cavity 102, and the expansion cavity 103, the inlet pipe 301 cooperates with the shell 10 to form a Venturi tube structure, so as to increase the flow velocity by reducing the flow area, thereby generating a low-pressure area in the throat. The change in the refrigerant flow rate helps to further improve the refrigerant mixing effect and increase the flow rate of the refrigerant flowing to each diversion hole 201, thereby ensuring the diversion effect of the diversion component 1000.

[0111] Furthermore, the housing 10 is provided with a first inserting portion 11, which defines an inlet hole 111. The inlet pipe 301 is adapted to be connected to the first inserting portion 11. The provision of the first inserting portion 11 not only enables the first inserting portion 11 to be connected with the inlet pipe 301, but also achieves a sealed connection at the inlet hole 111, thereby ensuring the assembly of the flow diverter assembly 1000. It also serves to limit or determine the insertion depth of the insertion section 30121.

[0112] It should be understood that the first insert portion 11 is connected to the inlet pipe 301 by methods including, but not limited to, welding, plugging, snapping, and bonding. Furthermore, when the first insert portion 11 is connected to the inlet pipe 301, the inflow hole 111 or the connection cavity forms the aforementioned steady flow cavity. In this embodiment, the first insert portion 11 and the inlet pipe 301 are connected by plugging and reinforced by welding, which helps improve the connection between the first insert portion 11 and the inlet pipe 301.

[0113] In this embodiment, the inlet pipe 301 has an incident section and a reduced diameter structure 3012 arranged in sequence, wherein the incident section defines the incident cavity 101, and the reduced diameter structure 3012 includes a reduced diameter section 30122 and an insertion section 30121. The reduced diameter section 30122 is connected and arranged between the incident section and the insertion section 30121. At this time, the reduced diameter section 30122 is a transition section, and the inner diameter of the incident section is larger than the inner diameter of the insertion section 30121. Optionally, the inner diameter of the incident section is 2 to 4 times the inner diameter of the insertion section 30121. Such an arrangement can increase the flow rate of the refrigerant when flowing through the inlet pipe 301, thereby further improving the uniformity of the refrigerant in conjunction with the blind pipe output end.

[0114] Furthermore, an insertion section 30121 is provided at the end of the inlet pipe 301 facing the housing 10. At least a portion of the insertion section 30121 passes through the inlet hole 111 and extends into the interior of the expansion chamber 103. Along the direction from the inlet pipe 301 to the housing 10, the first end of the insertion section 30121 communicates with the inlet chamber 101 for allowing the inflow of refrigerant. The second end of the insertion section 30121 is closed and located within the expansion chamber 103. Multiple outflow holes 3011 are provided along the circumference of the insertion section 30121. These outflow holes 3011 are located within the expansion chamber 103 and are spaced apart from the plate body 20.

[0115] Specifically, by limiting the position of the outflow hole 3011 in the insertion section 30121, one end of the insertion section 30121 can be formed as a blind tube output end, and the blind tube output end is located inside the expansion chamber 103. At this time, the blind tube effect is utilized to allow the refrigerant to rush into the blind tube output end of the insertion section 30121 and form a reflux, thereby mixing the gas-liquid refrigerant. The mixed refrigerant can flow into the expansion chamber 103 through small holes evenly distributed around the circumference, which helps to improve the liquid separation problem caused by the deviation of the inlet refrigerant, and thus solves the problem of uneven mixing of the gas-liquid two-phase refrigerant after entering the mixing chamber of the distributor 100.

[0116] like Figure 4 As shown, in some embodiments of the present application, the second end of the insertion section 30121 is connected to the plate body 20, and the second end of the insertion section 30121 is enclosed by the plate body 20. This configuration eliminates the need for a diverter cone in the distributor 100, simplifies the structure of the distributor 100, improves the assembly efficiency of the diverter assembly 1000, and effectively resolves the problem of poor alignment between the diverter cone and the inflow hole 111. In this case, along the circumference of the inflow hole 111, the housing 10 extends in a direction facing the inlet pipe 301, forming a first insertion portion 11. The end of the first insertion portion 11 facing away from the inflow hole 111 is welded to the circumference of the inlet pipe 301. Simultaneously, the end of the first insertion portion 11 facing away from the inflow hole 111 can abut against the reduced diameter section 30122 or be spaced apart from the reduced diameter section 30122, helping to limit the insertion depth of the insertion section 30121 and thereby ensure accurate assembly of the diverter assembly 1000.

[0117] like Figure 5As shown, in some other embodiments of the present application, the second connecting pipe 300 further includes a cover plate 30101, which is connected to the insertion section 30121. The second end of the insertion section 30121 is sealed by the cover plate 30101. In this case, the cover plate 30101 is spaced apart from the plate body 20. The provision of the cover plate 30101 ensures that the second end of the insertion section 30121 is in a closed state. By limiting the spacing between the cover plate 30101 and the plate body 20, sufficient space is provided between the cover plate 30101 and the plate body 20 for installing the spoiler 50 or other components described below, thereby reducing interference between the components.

[0118] At this point, it should be noted that when the insertion depth of the insertion section 30121 is relatively deep, the housing 10 extends along the circumference of the inflow hole 111 in a direction away from the second connecting tube 300, thereby forming a first insertion portion 11. In this embodiment, the length of the first insertion portion 11 is less than the vertical distance between the inflow hole 111 and the outflow hole 3011. In this case, the first insertion portion 11 does not affect the communication between the outflow hole 3011 and the expansion cavity 103. Furthermore, a concave welding groove is formed at the bottom of the housing 10, which can be welded to the circumference of the second connecting tube 300, not only facilitating the accumulation of solder, but also effectively improving the reliability of the weld joint.

[0119] It should be noted that when the cover plate 30101 is spaced apart from the plate body 20 , the outflow hole 3011 is located between the plate body 20 and the inflow hole 111 along the vertical direction to ensure the output of the outflow hole 3011 .

[0120] Furthermore, the provision of multiple outflow holes 3011 eliminates the need for a diverter cone within the expansion chamber 103, helping to resolve the problem of poor alignment between the diverter cone and the inflow hole 111. Furthermore, the structure of the distributor 100 can be simplified, reducing the difficulty of manufacturing the distributor 100 and thereby improving the assembly efficiency of the diverter assembly 1000.

[0121] Furthermore, the insertion section 30121 has a diameter-reducing portion 301211 , and the diameter-reducing portion 301211 is located between the first end of the insertion section 30121 and the outflow hole.

[0122] Specifically, since there may be a bending section at the inlet of the distributor 100, the flow pattern of the refrigerant at the inlet of the distributor 100 is uneven. Although there is a blind pipe output end and the outflow hole 3011 for mixing, there is still a situation where the refrigerant with a small flow rate is unevenly mixed. By providing a reducing portion 301211 in the insertion section 30121, the two-phase refrigerant at the inlet of the distributor 100 can be effectively accelerated to rush to the top, which helps to enhance the mixing effect of the blind pipe output end.

[0123] It should be understood that, in this embodiment, the diameter reducing portion 301211 is provided at the portion of the insertion section 30121 located at the expansion cavity 103. Figure 4 As shown, along the direction from inlet 111 to diverter hole 201, the inner diameter of reducing portion 301211 first decreases and then increases. This configuration can accelerate the flow of refrigerant through reducing portion 301211, thereby improving the inlet state of distributor 100 in conjunction with the blind-end output port, thereby further enhancing the refrigerant mixing effect. Of course, reducing portion 301211 can also be configured as a threaded segment structure, a reducing structure 3012, or an expanding structure, etc.

[0124] It should be noted that the position of the reducing portion 301211 can be set outside the expansion cavity 103 to ensure that the refrigerant can flow in from the first end of the insertion section 30121 and flow through the reducing portion 301211 to the blind tube output end.

[0125] Furthermore, if Figure 7 As shown, the inlet pipe and the shell are integrally formed. It is understandable that the shell 10 and the inlet pipe 301 are both cylindrical structures, and the shell 10 defines a hemispherical, diamond-shaped, or conical expansion chamber 103. One axial end of the expansion chamber 103 is open, and the other axial end is provided with an inflow hole 111, which is connected to the inlet pipe 301. The inlet pipe 301 can be coaxial with the inflow hole 111, that is, the inlet pipe 301 is coaxial with the shell 10. The inlet pipe 301 can be a cylindrical straight pipe structure or a straight pipe structure with a reduced diameter at one end, so that the connection between the inlet pipe 301 and the shell 10 is reduced in diameter to form a Venturi-type throat, which can further mix the fluid before entering the throat and, after being guided through the throat, flow toward the center of the expansion chamber 103, thereby improving the uniformity of the diversion.

[0126] At this time, if Figure 8 As shown, the housing 10 and inlet pipe 301 are integrally formed from a single sheet metal part 500 through sheet metal processing. Specifically, this can be accomplished by extruding a cylindrical sheet metal part 500 or rolling a prefabricated sheet metal part 500. This results in a structure with fewer connection points, greater structural strength, fewer parts, and higher production efficiency. Furthermore, since the housing 10 and inlet pipe 301 are integrally formed, there are no leak points, reducing the risk of leakage during use.

[0127] In some embodiments of the present invention, the step of extruding the rolled sheet metal part 500 to form the expansion cavity 103 and the lumen of the inlet tube 301 includes any one of the following steps:

[0128] Punching the two ends of the rolled sheet metal part 500 to form the expansion cavity 103 and the lumen of the inlet tube 301;

[0129] The circumference of the rolled sheet metal part 500 is spun to form the expansion cavity 103 and the lumen of the inlet tube 301 .

[0130] It is understood that the expansion cavity 103 and the lumen of the inlet pipe 301 can be formed by a spinning process. Specifically, a sheet metal part 500 with a relatively large diameter can be rolled and gradually spun along the design line (such as a curved Venturi throat) to achieve an integrated transition of the throat (i.e., the reduced diameter structure 3012), thereby forming the expansion cavity 103 and the lumen of the inlet pipe 301.

[0131] The expansion chamber 103 and the lumen of the inlet pipe 301 can also be formed by a coil welding process. Specifically, a flat sheet metal part 500 is stamped into a specific shape (such as the expanded shape of a Venturi-type throat), and a notch 501 is punched and cut out on the sheet metal part 500 according to the specifications of the throat (i.e., the reduced diameter structure 3012). Then, a coil welding process is performed to form the cylinder, and the connecting seam is welded and sealed to form the expansion chamber 103 and the lumen of the inlet pipe 301.

[0132] The expansion cavity 103 and the inlet tube 301 can also be formed by a stamping process at both ends. Specifically, a sheet metal part 500 with a smaller diameter is rolled up, and its two ends are expanded with different diameters according to the design line and mold stamped to realize the structure of the cylinder, thereby forming the expansion cavity 103 and the inlet tube 301.

[0133] Furthermore, if Figure 9 As shown, the end of the inlet pipe 301 facing away from the shell 10 is in a closed state, and a side hole 3013 is provided on the tube wall of the inlet pipe 301; one end of the incoming flow pipe 302 is connected to the inlet pipe 301 through the side hole 3013, and the other end of the incoming flow pipe 302 is used for fluid inflow, and the incoming flow pipe 302 is tangent to the inlet pipe 301.

[0134] Specifically, by making the axial direction of the incoming flow pipe 302 tangential to the circumferential direction of the inlet pipe 301 upstream of the distributor 100, the refrigerant in the incoming flow pipe 302 enters the inlet pipe 301 tangentially. Under the action of centrifugal force, the gas-liquid two-phase refrigerant is forced to form an annular flow inside the inlet pipe 301, ensuring that the refrigerant entering the distributor 100 is in a good gas-liquid two-phase mixed state, and then the gas-liquid two-phase refrigerant is fully mixed, thereby improving the uniformity of the refrigerant distribution at the inlet of the diversion component 1000.

[0135] In some embodiments of the present application, a coaxially arranged first lumen 3014 and a second lumen 3015 are formed in the inlet tube 301, and the second lumen 3015 is connected to the inflow hole 111 through the first lumen 3014. Along the radial direction of the inlet tube 301, the cross-sectional area of ​​the second lumen 3015 is smaller than the cross-sectional area of ​​the first lumen 3014, and the side hole 3013 is arranged on the wall of the first lumen 3014.

[0136] It can be understood that the first tube cavity 3014 and the second tube cavity 3015 can be cylindrical structures and are coaxially arranged. The flow direction of the circulation in the inlet tube 301 is from the end where the inlet tube 301 is connected to the incoming flow tube 302 to the end where the inlet tube 301 is connected to the distributor 100. The fluid first passes through the first tube cavity 3014 and then flows into the second tube cavity 3015. The first tube cavity 3014 is directly connected to the incoming flow tube 302. The fluid of the incoming flow tube 302 enters the first tube cavity 3014 tangentially from the side hole 3013 on the cavity wall of the first tube cavity 3014. The cross-sectional area of ​​the first tube cavity 3014 can be designed to be larger than the cross-sectional area of ​​the first tube cavity 3014, so that the fluid can be decelerated and buffered in the first tube cavity 3014, and the residence time is longer, which is conducive to further mixing of the fluid in the first tube cavity 3014, and the circumferential flow along the first tube cavity 3014 generates an annular flow. When the fluid is a refrigerant, the gas-liquid two-phase refrigerant is mixed more evenly.

[0137] It is necessary to further understand that Figure 9 As shown, D1 is the diameter of the first lumen 3014, D2 is the diameter of the incoming flow tube 302, D3 is the axial length of the first lumen 3014, and A is the vertical direction. The ratio of D1 to D2 ranges from 2 to 5. At this time, the ratio of the diameter of the first lumen 3014 to the diameter of the incoming flow tube 302 can be optimized. By controlling the diameter of the first lumen 3014, the space of the first lumen 3014 is not too large compared to the size of the incoming flow tube 302, causing the fluid to flow slowly in the first lumen 3014, thereby reducing the flow efficiency. Furthermore, by making the space of the first lumen 3014 not too small compared to the size of the incoming flow tube 302, the fluid stays in the first lumen 3014 for too short a time, flowing out of the first lumen 3014 before achieving a mixing effect, thereby increasing the residence time of the gas-liquid two-phase refrigerant in the first lumen 3014 and thereby improving the refrigerant mixing efficiency.

[0138] It is understood that the ratio of the axial length of the first lumen 3014 to the diameter of the incoming flow tube 302 can be optimized. By controlling the axial length of the first lumen 3014, the space in the first lumen 3014 is not too large compared to the dimensions of the incoming flow tube 302, causing the fluid to flow slowly within the first lumen 3014 and reduce flow efficiency. Furthermore, the space in the first lumen 3014 is not too small compared to the dimensions of the incoming flow tube 302, which shortens the fluid's residence time within the first lumen 3014 and causes it to flow out of the first lumen 3014 before achieving mixing. This increases the residence time of the gas-liquid two-phase refrigerant within the first lumen 3014, thereby improving the refrigerant mixing efficiency.

[0139] It is understood that the ratio of the axial length of the first lumen 3014 to its diameter can be optimized. By controlling the shape of the first lumen 3014, the space in the first lumen 3014 can be controlled to prevent it from being too wide or too long, thereby slowing the flow of fluid within the first lumen 3014 and reducing flow efficiency. Furthermore, the space in the first lumen 3014 can be controlled to prevent it from being too narrow or too short, thereby preventing the fluid from staying in the first lumen 3014 too short and flowing out of the first lumen 3014 before mixing is achieved. This increases the residence time of the gas-liquid two-phase refrigerant within the first lumen 3014, thereby improving the refrigerant mixing efficiency.

[0140] Furthermore, the diversion assembly 1000 also includes an incoming flow tube 302, the first end of which is connected to the inlet pipe 301 and communicates with the incident cavity 101, and the second end of the incoming flow tube 302 is used for the inflow of refrigerant. The incoming flow tube 302 has a turbulent flow structure, which is used to mix the refrigerant flowing from the second end of the incoming flow tube 302 to the inlet pipe 301.

[0141] Specifically, by providing a flow-disturbing structure on the inner wall of the incoming flow tube 302, the refrigerant can collide with the tube wall of the incoming flow tube 302 as it flows through the incoming flow tube 302, thereby fully mixing the gas and liquid phases of the refrigerant. Alternatively, a vortex can be formed within the incoming flow tube 302, allowing the gas and liquid phases of the refrigerant to fully mix there, thereby achieving uniform distribution of the gas and liquid phases of the refrigerant. This helps to solve the problem of uneven refrigerant distribution and biased flow at the inlet of the diversion assembly of existing HVAC equipment.

[0142] It should be understood that in some embodiments of the present application, the flow-disturbing structure can be set as a threaded structure 3024 on the inner wall of the incoming flow tube 302. At this time, the threaded structure 3024 extends spirally along the axial direction of the incoming flow tube 302. The length of the threaded structure 3024 along the axial direction of the incoming flow tube 302 can be consistent with the length of the incoming flow tube 302, or a bolt structure can be set in part of the pipe section of the incoming flow tube 302. For example, the incoming flow tube 302 can be set to a U-shaped or S-shaped pipe type with bends, so that the refrigerant can flow along a curved path in the incoming flow tube 302, and collide with the pipe wall of the incoming flow tube 302 when flowing to fully mix the gas-liquid two-phase refrigerant. According to the flow resistance design requirements, it can be seen that the straight pipe section of the incoming flow tube 302 is provided with a threaded structure 3024, so that the gas-liquid two-phase refrigerant is fully mixed here, so as to achieve uniform distribution of the gas-liquid two-phase refrigerant, reduce flow resistance, and improve circulation efficiency.

[0143] like Figure 7As shown, at least a portion of the inlet flow pipe 302 is U-shaped, and the end of the inlet flow pipe 302 that is connected to the inlet hole 111 is coaxially arranged with the inlet hole 111. It is understandable that the inlet flow pipe 302 extends in a U-shape as a whole, so that the gas-liquid two-phase refrigerant entering the inlet flow pipe 302 collides with the pipe wall at the bend of the U-shaped inlet flow pipe 302, thereby causing the refrigerant to flow in different directions, thereby fully mixing the gas-liquid two-phase refrigerant and improving the uniformity of the refrigerant before the distributor 100. In addition, after the inlet flow pipe 302 is set to a U shape, the vertical height can be kept as low as possible, thereby reducing the occurrence of liquid and oil accumulation at the bottom of the heat exchanger located downstream of the diverter assembly 1000 under the lower load cooling condition of the HVAC equipment.

[0144] The incoming flow pipe 302 includes a first straight pipe section 3025, a curved pipe section 3026 and a second straight pipe section 3027 connected in sequence. The end of the first straight pipe section 3025 away from the curved pipe section 3026 is connected to the inflow hole 111. The threaded structure 3024 includes a first threaded section 30241 and a second threaded section 30242. The first threaded section 30241 is arranged on the inner wall of the first straight pipe section 3025, and the second threaded section 30242 is arranged on the inner wall of the second straight pipe section 3027.

[0145] It can be understood that the first straight pipe section 3025 and the second straight pipe section 3027 are straight pipe structures, and the first straight pipe section 3025 and the second straight pipe section 3027 can be arranged in parallel. The curved pipe section 3026 is arc-shaped, and its two ends are respectively connected to the first straight pipe section 3025 and the second straight pipe section 3027, so that the incoming flow pipe 302 extends in a U shape. A first threaded section 30241 can be set on at least part of the pipe wall of the first straight pipe section 3025, and the first threaded section 30241 can extend along the length direction of the first straight pipe section 3025, so that the refrigerant can produce annular mixed flow under the action of the guide groove of the first threaded section 30241 when flowing through the first straight pipe section 3025, so that the mixing of the gas-liquid two-phase refrigerant is more uniform. A second threaded section 30242 may be provided on at least a portion of the wall of the second straight pipe section 3027. The second threaded section 30242 may extend along the length of the second straight pipe section 3027. This allows the refrigerant to generate an annular mixed flow due to the flow guide grooves of the second threaded section 30242 as it flows through the second straight pipe section 3027, resulting in more uniform mixing of the gas-liquid two-phase refrigerant. The inner wall of the curved pipe section 3026 may be smooth, thereby reducing flow resistance, improving circulation efficiency, and facilitating processing.

[0146] Specifically, the threaded structure 3024 can be formed by extruding the incoming flow tube 302 into a spiral structure protruding into the inner cavity of the tube through a mold, which makes processing convenient and low-cost, and can guide the refrigerant flowing through to produce annular vortex flow, thereby improving the uniformity of the refrigerant.

[0147] like Figure 10As shown, the thread depth of the thread structure 3024 is L, the thread width of the thread structure 3024 is W, and the ratio of W to L ranges from 0.5 to 2. The thread depth refers to the distance from the head of the thread teeth of the thread structure 3024 to the bottom of the thread teeth along the radial direction of the incoming flow tube 302, and the thread width refers to the length of the thread teeth along the axial direction of the incoming flow tube 302. By optimizing the ratio range of the thread depth and thread width of the thread structure 3024, the flow area of ​​the thread structure 3024 is made appropriate, and the thread structure 3024 has a certain depth, so as to improve the flow diversion effect of the thread structure 3024 on the refrigerant, thereby generating an annular swirl of the refrigerant and fully mixing the gas-liquid two-phase refrigerant.

[0148] Still Figure 10 As shown, the thread distance of the thread structure 3024 is S, the thread width of the thread structure 3024 is W, and the ratio of W to S ranges from 1 to 2.5. The thread distance refers to the distance between the heads of two adjacent threads along the axial direction of the incoming flow tube 302. By optimizing the ratio range of the thread distance and thread width of the thread structure 3024, the flow area of ​​the thread structure 3024 is optimized, and the thread structure 3024 is neither too dense nor too sparse, thereby improving the flow guidance effect of the thread structure 3024 on the refrigerant, thereby generating an annular swirl of the refrigerant and fully mixing the gas-liquid two-phase refrigerant.

[0149] It is further understood that, along the axial direction of the incoming flow tube 302, the length of the first thread segment 30241 ranges from 30 mm to 50 mm; and / or, along the axial direction of the incoming flow tube 302, the length of the second thread segment 30242 ranges from 30 mm to 50 mm.

[0150] It can be understood that by optimizing the length of the first thread segment 30241 and the second thread segment 30242, the length of the first thread segment 30241 and the second thread segment 30242 is made appropriate, so that the thread structure 3024 is not too long to cause excessive flow resistance, affecting the circulation efficiency, and the length of the thread structure 3024 can achieve the basic effect of generating annular vortex for the refrigerant, so that the gas-liquid two-phase refrigerant is fully mixed.

[0151] It is further understood that along the axial direction of the incoming flow tube 302, the ratio of the length of the first thread segment 30241 to the diameter of the incoming flow tube 302 ranges from 3 to 5, and / or the ratio of the length of the second thread segment 30242 to the diameter of the incoming flow tube 302 ranges from 3 to 5.

[0152] It can be understood that by optimizing the range of the ratio of the first thread segment 30241 and the second thread segment 30242 to the diameter of the incoming flow tube 302, the length of the first thread segment 30241 and the second thread segment 30242 is appropriate, so that the thread structure 3024 is not too long to cause excessive flow resistance, affecting the circulation efficiency, and the length of the thread structure 3024 can achieve the basic effect of generating annular vortex for the refrigerant, so that the gas-liquid two-phase refrigerant is fully mixed.

[0153] It is further understood that, along the vertical direction A, the rotation direction of the first thread segment 30241 is the same as the rotation direction of the second thread segment 30242. Alternatively, along the vertical direction A, the first thread segment 30241 extends in a counterclockwise spiral, and the second thread segment 30242 extends in a clockwise spiral.

[0154] It is understood that the rotation direction of the first thread segment 30241 can be set to be the same as the rotation direction of the second thread segment 30242, so that the gas-liquid two-phase refrigerant is initially mixed after being guided by the second thread segment 30242 to generate a swirl, and then further mixed after being guided again by the first thread segment 30241 to generate a swirl, thereby improving the mixing uniformity of the refrigerant. The rotation directions of the first thread segment 30241 and the second thread segment 30242 can also be set opposite. Specifically, the first thread segment 30241 can be set to extend in a counterclockwise spiral, i.e., a left-hand spiral, and the second thread segment 30242 can be set to extend in a clockwise spiral, i.e., a right-hand spiral. The refrigerant generates a clockwise swirl when passing through the second thread segment 30242, and then generates a counterclockwise swirl when passing through the first thread segment 30241. The refrigerant is further mixed after rotating in both directions, thereby fully mixing the gas-liquid two-phase refrigerant and improving the mixing uniformity of the refrigerant before diversion.

[0155] In some other embodiments of the present application, the flow disturbance structure can be set as a blind pipe structure. Specifically, one end of the incoming flow pipe 302 is closed, and the other end of the incoming flow pipe 302 is used to introduce refrigerant. A first connecting hole 3021 is provided on the side wall of the incoming flow pipe 302. The first connecting hole 3021 runs through the side wall of the incoming flow pipe 302, so that the end of the inlet pipe 301 away from the distributor 100 can be connected to the incoming flow pipe 302 through the first connecting hole 3021. Specifically, a flange or a connector can be provided at the first connecting hole 3021 to fix the end of the inlet pipe 301 to the incoming flow pipe 302 to improve the connection reliability. There is a certain distance between the first connecting hole 3021 and the first end of the incoming flow pipe 302, so that after the refrigerant hits the end, a vortex is formed in the incoming flow pipe 302, allowing the vapor and liquid phases of the refrigerant to be fully mixed here, thereby achieving uniform distribution of the vapor and liquid phases of the refrigerant.

[0156] By connecting the end of the inlet pipe 301 to the side wall of the incoming flow pipe 302 and closing one end of the incoming flow pipe 302, the connection position between the inlet pipe 301 and the incoming flow pipe 302 is spaced from the end of the sealed edge of the incoming flow pipe 302, so that the refrigerant enters the incoming flow pipe 302 first. Due to the sealed edge of the end of the incoming flow pipe 302, the refrigerant will form a vortex in the incoming flow pipe 302 after hitting the end, allowing the gas and liquid phases of the refrigerant to be fully mixed here, thereby achieving uniform distribution of the gas and liquid phases of the refrigerant.

[0157] In some embodiments of the present application, the axial direction of the incoming flow tube 302 is perpendicular to the axial direction of the inlet pipe 301. It can be understood that the incoming flow tube 302 can be connected vertically to the inlet pipe 301, for example, the incoming flow tube 302 is set horizontally, and the inlet pipe 301 is set vertically and located above the inlet pipe 301, so that after the refrigerant enters the incoming flow tube 302, it can collide with the closed end of the incoming flow tube 302 to form a return flow, so that the gas-liquid two-phase refrigerant in the incoming flow tube 302 is fully mixed, and then flows into the expansion cavity 103 through the inlet pipe 301, so as to improve the mixing uniformity of the refrigerant before diversion, thereby improving the performance of the diversion component 1000.

[0158] Specifically, the incoming flow pipe 302 includes a tube body 3022 and an end cover 3023. The end cover 3023 is arranged at one end of the tube body 3022 and seals the end of the tube body 3022. The other end of the tube body 3022 is used for fluid inflow. A first connecting hole 3021 is provided on the side wall of the tube body 3022.

[0159] It can be understood that the tube body 3022 can be a straight tube with both ends open, and the end cover 3023 is sealed at one end of the tube body 3022. Specifically, the end cover 3023 can be sleeved on one end of the tube body 3022, or embedded in one end of the tube body 3022, and can also be set at one end of the tube body 3022 by means of a spinning seal, so that the incoming flow pipe 302 forms a blind pipe structure to generate a vortex flow in the incoming flow pipe 302, thereby improving the mixing uniformity of the gas-liquid two-phase refrigerant.

[0160] It is further understood that if Figure 11 As shown, along the axial direction of the incoming flow tube 302, the distance between the first communicating hole 3021 and the end cover 3023 is a first distance d, and the ratio of the first distance to the inner diameter b of the incoming flow tube 302 is in a range of 1 to 3. It is understood that the ratio of the distance between the first communicating hole 3021 and the first end to the inner diameter of the incoming flow tube 302 is set in a range of 1 to 3, so that the distance between the first communicating hole 3021 and the first end is moderate, so as to generate a swirling flow through the end of the incoming flow tube 302 to fully mix the refrigerant, and the distance between the first communicating hole 3021 and the first end is not too far, so as to reduce the flow efficiency.

[0161] Still Figure 11As shown, the ratio of the inner diameter b of the incoming flow pipe 302 to the inner diameter c of the inlet pipe 301 is in the range of 1.2 to 2.5. It is understood that setting the ratio of the inner diameter of the incoming flow pipe 302 to the inner diameter of the inlet pipe 301 in the range of 1.2 to 2.5 ensures that the difference in flow area between the incoming flow pipe 302 and the inlet pipe 301 is neither too large nor too small, thereby improving the flow efficiency between the incoming flow pipe 302 and the inlet pipe 301.

[0162] Still Figure 11 As shown, the diversion assembly 1000 also includes a connecting seat 303, which is installed on the side wall of the incoming flow pipe 302. The connecting seat 303 has a second connecting hole, which passes through the connecting seat 303. The second connecting hole is connected to the first connecting hole 3021, and one axial end of the inlet pipe 301 is inserted into the second connecting hole.

[0163] It is understandable that the connection seat 303 can be a rotating body structure, such as a cylindrical or truncated cone with a second connecting hole running through it. One axial end of the connection seat 303 can be adapted to the side wall shape of the incoming flow pipe 302, and is designed to have an arc-shaped end face, and is connected to the incoming flow pipe 302 by welding. A second connecting hole running through it is provided in the connection seat 303, one end of the second connecting hole is connected to the first connecting hole, and the other end is used to plug in the inlet pipe 301. The end of the inlet pipe 301 can be set in the second connecting hole by an interference fit, or the side wall of the inlet pipe 301 can be connected to the connection seat 303 by welding, so as to realize a fixed connection between the inlet pipe 301 and the connection group, thereby improving the connection reliability between the inlet pipe 301 and the incoming flow pipe 302.

[0164] In some embodiments of the present application, the flow-disturbing structure may be a gradually expanding section 30130 provided on the insertion section 30121. In this case, the insertion section 30121 is sleeved on the outer peripheral surface of the first insertion portion 11, and in this case, the inner diameter of the end of the insertion section 30121 close to the incident cavity 101 is the same as the inner diameter of the inflow hole 111, and the gradually expanding section 30130 is provided in the middle section of the insertion section 30121. From the inlet pipe 301 facing the shell 10, the inner diameter of the gradually expanding section 30130 gradually increases, and the inner diameter of the gradually expanding section 30130 is gradually increased. The small inner diameter is the same as the inner diameter of the inflow hole 111, and the maximum inner diameter of the gradually expanding section 30130 is the same as the outer diameter of the first plug-in part 11. At this time, the gradually expanding section 30130 and the first plug-in part 11 cooperate to form an expansion groove. By defining the expansion groove between the gradually expanding section 30130 and the first plug-in part 11, the refrigerant entering the second connecting tube 300 impacts the expansion groove, so that the uneven refrigerant generates eddy currents after colliding with the groove wall of the expansion groove, aggravating the instability of the refrigerant, prompting the refrigerant to disperse, and playing the role of preliminary mixing of the refrigerant before diversion.

[0165] like Figure 12As shown, the angle between a portion of the inner wall of the gradually expanding section 30130 and the axial direction of the gradually expanding section 30130 ranges from 50° to 70°. It is understood that the expansion groove has a V-shaped cross-section along the axial direction of the inlet pipe 301. In this case, the expansion groove has a gradually expanding angle (α in the figure) of approximately 60°. As a result, when the fluid flows through the expansion groove, the flow rate decreases and the pressure increases due to the gradual expansion of the flow area. Furthermore, due to the influence of viscosity, the flow rate is low near the wall. When the gradually expanding angle of the expansion groove is 60°, the vortex is maximized, the fluid mixing is more intense, and the mixing uniformity of the fluid at this location is further improved.

[0166] Furthermore, the diverter cone 30 is provided on the plate body 20 , and the axis of the diverter cone 30 is located on the same straight line as the axis of the inflow hole 111 . The diverter cone 30 is used to guide the fluid from the inflow hole 111 to the diverter hole 201 .

[0167] Specifically, by providing the diverter cone 30, a diversion surface can be formed in the diverter cavity, so that after entering the expansion cavity 103, the refrigerant can flow evenly to each diverter hole 201 under the action of the diverter cone 30, thereby ensuring the diverting effect of the diverter assembly 1000. At the same time, the provision of the diverter cone 30 can also cooperate with the structure of the expansion cavity 103 to further improve the diverting effect of the distributor 100.

[0168] In some embodiments of the present application, the diverter cone 30 and the plate body 20 are integrally formed. By providing the diverter cone 30 and the plate body 20 as an integrally formed part, it helps to reduce the difficulty of manufacturing and assembling the distributor 100. Figure 13 As shown, in this embodiment, the diverter cone 30 and the plate body 20 are integrally stamped. This provides a simple structure and facilitates fabrication. Optionally, the diverter cone 30 may be hollowed out to reduce the manufacturing cost of the distributor 100 while ensuring the diversion effect of the diverter cone 30.

[0169] At this time, the diverter cone 30 can be set to a conical structure or a pyramidal structure. When the diverter cone 30 is set to a pyramidal structure, as shown in FIG. Figure 14 As shown, the diverter cone 30 has a plurality of guide surfaces 311, and the guide surfaces 311 are arranged in a one-to-one correspondence with the diverter holes 201. This design ensures that each guide surface 311 specifically guides the fluid into the corresponding diverter hole 201. Since the guide surfaces 311 are continuously connected, they can effectively guide the fluid to flow downward from the top of the diverter cone 30, avoiding collision and turbulence of the fluid in the cavity, and ensuring uniform distribution of the fluid. After the fluid enters from the inlet 111, it directly contacts the top of the diverter cone 30, and is then smoothly dispersed to each diverter hole 201 along the guide surface 311. Due to the corresponding relationship between the guide surface 311 and the diverter hole 201, the fluid flow received by each diverter hole 201 is relatively consistent, further improving the diversion uniformity of the system.

[0170] It should be noted that, in addition to placing the small-diameter end in the expansion chamber 103, the small-diameter end can also be placed on the side away from the expansion chamber 103, that is, the small-diameter end is placed inside the installation chamber 104. In this case, the internal hollowing of the diverter cone 30 forms a conical flow guide space. The refrigerant entering the expansion chamber 103 from the inflow hole 111 will impact the small-diameter end of the diverter cone 30 and, under the action of the conical surface of the diverter cone 30, flow to each diverter hole 201. Since the inflow hole 111 and the small-diameter end are located on the same straight line, the diversion space is on the same horizontal plane, and the pressure at each location is the same or similar, which helps to ensure the uniformity of the refrigerant flow.

[0171] In some other embodiments of the present application, the diverter cone 30 and the plate body 20 are split structures. The diverter cone 30 can be directly set on the side of the plate body 20 facing the expansion cavity. At this time, the small diameter end of the diverter cone 30 is located in the expansion cavity 103. Alternatively, a avoidance hole 203 is opened in the middle of the plate body 20, and the diverter cone 30 is set in the avoidance hole 203, and the small diameter end of the diverter cone 30 is located in the expansion cavity 103. The diverter cone 30 is set in the avoidance hole 203 of the plate body 20, and the diverter cone 30 is welded and fixed to the plate body 20. Such a setting, on the one hand, helps to adjust the insertion depth of the diverter cone 30, ensure the distance between the diverter cone 30 and the inflow hole 111, and helps to improve the applicability of the distributor 100 and adjust the diversion effect. On the other hand, the diverter cone 30 can be set to different structures such as a cone, a triangular pyramid, a square pyramid, a pentagonal pyramid, etc. to adapt to the number of diverter holes 201 and ensure the diversion effect. At the same time, it helps to improve the diversity of the diverter cone 30 and thus improve the applicability of the distributor 100.

[0172] It is further understood that if Figure 15 As shown, the diverter cone 30 includes a cone 31, an extension section 32, and a second flange 33. The cone 31, extension section 32, and second flange 33 are sequentially connected from the inflow hole 111 toward the plate body 20. The extension section 32 mates with the inner wall of the avoidance hole 203. Optionally, the cone 31 is disposed within the expansion cavity 103, and the second flange 33 is in close contact with the side of the plate body 20 facing away from the expansion cavity 103. The provision of the extension section 32, which can be mated with the avoidance hole 203, facilitates achieving a sealed connection between the plate body 20 and the diverter cone 30. At the same time, the provision of the second flange 33, on the one hand, helps to further improve the sealing effect between the plate body 20 and the diverter cone 30; on the other hand, it can also improve the assembly efficiency of the plate body 20 and the diverter cone 30, thereby improving the assembly effect of the distributor 100; thirdly, the second flange 33 can increase the welding area between the diverter cone 30 and the plate body 20, which helps to further improve the connection effect between the diverter cone 30 and the plate body 20.

[0173] It should be pointed out that when the cone of the diverter cone 30 is set in the installation cavity 104, the second flange 33 is fitly connected to the side of the plate body 20 facing the expansion cavity 103. At this time, the welding position of the diverter cone 30 and the plate body 20 is the connection between the cone and the plate body 20. Such a setting helps to reduce the impact of welding on the flow of refrigerant, so as to ensure the effect of the diverter cone 30.

[0174] Alternatively, the diverter cone 30 can be composed solely of the cone 31 and the extension 32. In this case, the end surface of the extension 32 facing away from the cone 31 can optionally be coplanar with the mounting surface to facilitate welding. Alternatively, the end surface of the extension 32 facing away from the cone 31 can be parallel to the mounting surface, with the extension 32 extending outward to the side of the plate 20 facing away from the expansion cavity 103, or positioned within the avoidance hole 203.

[0175] It should be pointed out that if Figures 13 to 15 As shown, the connection between the diverter cone 30 and the plate body 20 is a single plate structure, whether it is an integral molding or a split structure. At this time, the plate body 20 is connected to the first connecting pipe 200.

[0176] In some embodiments of the present application, Figure 15 and Figure 16 As shown, the end of the first connecting tube 200 facing the distributor 100 is provided with a first flange 210. The first flange 210 is arranged around the first connecting tube 200 and is closely connected to the distributor 100. Specifically, the first flange 210 is arranged at one end of the first connecting tube 200 and is located on the outer side surface of the first connecting tube 200. The first flange 210 is arranged to extend radially along the first connecting tube 200. The end of the first flange 210 facing the plate body 20 has an active surface that is closely connected to the plate body 20. At this time, the first flange 210 and the plate body 20 can be welded and fixed, and the first connecting tube 200 is arranged concentrically with the corresponding diversion hole 201. The provision of the first flange 210 increases the welding area between the first connecting tube 200 and the distributor 100, increases the reliability of the welding, and thus solves the problem of poor reliability of the existing overlap structure of the distributor and the distribution tube. At the same time, setting the first flange 210 on the first connecting tube 200 can make the distributor 100 do not need to set a structure that cooperates with the first connecting tube 200, which helps to simplify the structure of the distributor 100 and reduce the structural requirements for the distributor 100.

[0177] In some embodiments of the present application, Figures 17 to 19As shown, one end of the first connecting tube 200 can be inserted into the diverter hole 201 to achieve fixation with the housing 10. The portion of the first connecting tube 200 inserted into the diverter hole 201 can be fixed by interference fit with the hole wall of the diverter hole 201, or the portion of the first connecting tube 200 inserted into the diverter hole 201 can be fixed by welding to the hole wall of the diverter hole 201. To ensure the reliability of the connection between the first connecting tube 200 and the housing 10, the thickness of the plate body 20 can be set to be greater than a certain value, and the length of the first connecting tube 200 inserted into the diverter hole 201 can also be set to be greater than a certain value, so that the length of the first connecting tube 200 inserted into the diverter hole 201 is not too short, thereby improving the reliability of the connection between the first connecting tube 200 and the housing 10 and preventing the first connecting tube 200 from falling out of the diverter hole 201.

[0178] At this time, if Figure 18 As shown, a mounting groove is provided on the outer edge of the plate body 20 on the side facing the expansion cavity 103. The mounting groove is arranged around the axis of the inflow hole 111, and the end of the housing 10 facing away from the inflow hole 111 is mounted in the mounting groove. It is understood that the mounting groove can be arranged in an annular shape and extend around the axis of the plate body 20, or the mounting groove can include multiple portions spaced apart along the circumference of the plate body 20. The shape of the mounting groove matches the open end of the housing 10. The mounting groove can be defined by a first plane, which is an annular surface and parallel to the radial direction of the plate body 20, and a second plane, which is an annular surface and parallel to the axial direction of the plate body 20. When the plate body 20 is installed, the second plane can be embedded in the expansion cavity 103 and abutted against the cavity wall of the expansion cavity 103. The first plane is then abutted against the end face of the open end of the housing 10, so that the plate body 20 is partially embedded and installed in the expansion cavity 103. The open end of the housing 10 is partially matched and fixed to the mounting groove, further improving the reliability of the connection between the plate body 20 and the housing 10.

[0179] like Figure 19 As shown, the axial direction of the diverter hole 201 is set at an angle to the axial direction of the inflow hole 111, and along the flow direction of the diverter hole 201, the axial direction of the diverter hole 201 is inclined in a direction away from the axis of the inflow hole 111. It can be understood that since the plate body 20 is inclined at a certain angle relative to the axis of the inflow hole 111 and the expansion cavity 103, the diverter hole 201 can also be inclined at a certain angle to the axis of the inflow hole 111 and the expansion cavity 103 for convenient processing. Specifically, the angle between the axis of the diverter hole 201 and the axis of the expansion cavity 103 can be set to 5°, so that the openings of the diverter hole 201 on the side of the plate body 20 away from the expansion cavity 103 are more dispersed, thereby making the connection and installation between the first connecting pipe 200 and the diverter hole 201 more convenient and easier to operate. In addition, the plate surface of the plate body 20 facing away from the expansion cavity 103 can also be configured to be conical, and the angle between the plate surface of the plate body 20 facing away from the expansion cavity 103 and the radial direction of the expansion cavity 103 is 5°.

[0180] In some embodiments of the present application, Figure 20 and Figure 21 As shown, a plug-in portion 204 is provided on the plate body 20, and the plug-in portion 204 is adapted to be connected with the first connecting pipe 200. The plug-in portion 204 has an extension structure 2041 extending out of the plate body 20, and a diversion hole 201 is provided on the extension structure 2041. The diversion hole 201 is concentrically arranged with the first connecting pipe 200.

[0181] Specifically, by providing a plug-in portion 204 on the plate body 20 so as to be adaptably connected to the first connecting pipe 200, the contact area between the first connecting pipe 200 and the plate body 20 is effectively increased, and the connection strength between the distributor 100 and the first connecting pipe 200 is improved, which helps to solve the problem of poor overlap between the existing distributor and the distribution pipe. Moreover, it also helps to solve the centering problem between multiple accessories during fitting and provides convenience for subsequent welding. At this time, the diversion assembly 1000 can adopt the two connection methods of plug-in and welding to work together to further improve the connection strength between the distributor 100 and the first connecting pipe 200.

[0182] like Figure 20 As shown, the plug-in portion 204 is configured as a hole. An extension structure 2041 is protruding from one end surface of the plate body 20 and is formed with the plug-in portion 204. The extension structure 2041 has a limiting plate 2042, and a diverter hole 201 is provided on the limiting plate 2042. The limiting plate 2042 is concentric with the diverter hole 201. In this embodiment, the plug-in portion 204 is configured as a circular hole, and the first connecting pipe 200 is inserted into the interior of the plug-in portion 204 and abuts against the limiting plate 2042. When the plate body 20 is set in the mounting portion 12 of the shell 10, the extension structure 2041 is located inside the expansion cavity 103. The aperture of the diverter hole 201 is smaller than the inner diameter of the first connecting pipe 200. The provision of the extension structure 2041 and the limitation of the aperture of the diverter hole 201 help to achieve multiple changes in the local flow direction of the refrigerant, thereby improving the mixing effect of the refrigerant.

[0183] It should be noted that the thickness of the plate body 20 is two to four 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 provision of the extension structure 2041 further enhances the structural strength of the plate body 20 and helps ensure the insertion depth of the first connecting tube 200, thereby improving the installation of the first connecting tube 200 and facilitating welding.

[0184] In some other embodiments of the present application, such as Figure 21As shown, the plug-in portion 204 is a columnar structure, and an extension structure 2041 protruding from one end surface of the plate body 20 forms the plug-in portion 204. When the plate body 20 is installed on the housing 10, the extension structure 2041 is located on the side of the plate body 20 facing away from the expansion cavity 103. At this time, the first connecting tube 200 is sleeved on the extension structure 2041, and the diverter hole 201 passes through the plate body 20, connecting the expansion cavity 103 and the first connecting tube 200. The provision of the extension structure 2041 helps to enhance the structural strength of the plate body 20. Furthermore, the sleeved connection between the first connecting tube 200 and the plate body 20 helps ensure the installation of the first connecting tube 200 and facilitates welding.

[0185] 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. Figure 18 As shown, the thickness of the plate 20 is the same as the depth of the mounting cavity 104. At this point, the side of the plate 20 facing away from the expansion cavity 103 is coplanar with the end face of the housing 10. At this point, the welding position of the plate 20 to the housing 10 and the welding position of the plate 20 to the first connecting pipe 200 are coplanar. This helps to improve welding convenience and ensure the assembly effect of the distributor 100.

[0186] It should be further understood that a flow disturbance chamber 20411 is defined on the side of the plug-in portion 204 facing the expansion chamber 103. When the plate body 20 is positioned within the mounting chamber 104, the flow disturbance chamber 20411 cooperates with the expansion chamber 103 to form a flow disturbance space, thereby enhancing the flow diversion and flow disturbance effects of the dispenser 100. Furthermore, the inner diameter of the flow disturbance chamber 20411 is slightly smaller than the inner diameter of the first connecting tube 200. "Slightly smaller" means that the inner diameter of the flow disturbance chamber 20411 is 75% to 95% of the inner diameter of the first connecting tube 200. Specifically, the inner diameter of the flow disturbance chamber 20411 is 75%, 80%, 85%, 90%, or 95% of the inner diameter of the first connecting tube 200. The inner diameter of the flow disturbance chamber 20411 is 2 to 4 times the inner diameter of the first connecting tube 200. Optionally, the inner diameter of the flow disturbance chamber 20411 is 2 times the inner diameter of the first connecting tube 200. By limiting the inner diameter of the flow-turbulating cavity 20411 to be larger than the diameter of the diverter hole 201 and smaller than the inner diameter of the first connecting tube 200, the refrigerant can change its flow direction after entering the first connecting tube 200 due to the increased flow space, thereby helping to improve the refrigerant mixing effect. Moreover, because the diverter hole 201 is arranged concentrically with the first connecting tube 200, the refrigerant flow is more uniform, ensuring a better mixing effect.

[0187] Furthermore, if Figure 3 、 Figure 11 、 Figure 12 、 Figure 22 and Figure 24As shown, the plate body 20 includes a first plate body 21 and a second plate body 22, and the second plate body 22 is connected and arranged on the side of the first plate body 21 away from the inflow hole 111. The first plate body 21 is arranged in the shell 10 and blocks the expansion cavity 103. The second plate body 22 is connected to the shell 10. The first plate body 21 is provided with a plurality of diversion holes 201, and the second plate body 22 is provided with a plurality of insertion holes 202. The insertion holes 202 are coaxially arranged with the diversion holes 201, and the aperture of the insertion holes 202 is larger than the aperture of the diversion holes 201. The diversion component 1000 also includes a first connecting pipe 200. The first end of the first connecting pipe 200 is inserted into the insertion hole 202 and is connected to the diversion hole 201. The end face of the first end is connected to the plate surface of the second plate body 22 on the side away from the expansion cavity 103.

[0188] It is understood that the plate body 20 can be composed of a first plate body 21 and a second plate body 22, which are separately arranged. The first plate body 21 is located in the expansion cavity 103 and is provided with a diverter hole 201 for adjusting the distribution flow. The diverter hole 201 can be a straight hole or a gradually expanding hole along the flow direction. The second plate body 22 can be fixedly connected to the first plate body 21 by welding or clamping, and the outer edge of the second plate body 22 is fixed to the housing 10 by clamping or welding. The second plate body 22 is provided with an insertion hole 202 for inserting one end of the first connecting tube 200 into the insertion hole 202 to achieve the connection between the first connecting tube 200 and the plate body 20. The first connecting tube 200 is connected to the expansion cavity 103 through the diverter hole 201. Specifically, the aperture of the insertion hole 202 can be set to be larger than the aperture of the diversion hole 201, so that a step structure is formed at the insertion hole 202 and the diversion hole 201, so that the end of the first connecting tube 200 after being inserted into the insertion hole 202 can abut against the plate surface of the first plate body 21. The first connecting tube 200 can be welded to the first plate body 21, and the connection between the peripheral wall of the first connecting tube 200 and the hole wall of the insertion hole 202 is coordinated to expand the connection area between the first connecting tube 200 and the plate body 20, thereby improving the reliability of the connection.

[0189] Further, along the axial direction of the diverter hole 201, the thickness of the second plate 22 is greater than or equal to 1.5 mm. The first plate 21 has a first thickness, the diverter hole 201 has a first aperture, and the insertion hole 202 has a second aperture, wherein the second aperture is greater than or equal to the sum of the first aperture and the two first thicknesses. It is understood that the thickness of the second plate 22 can be optimized to a certain thickness, thereby increasing the axial length of the insertion hole 202 on the second plate 22 to a certain value, thereby ensuring a more reliable connection between the first connecting tube 200 and the insertion hole 202. Furthermore, the ratio between the aperture of the insertion hole 202 and the aperture of the diverter hole 201 can be optimized to ensure an appropriate plate surface area between the insertion hole 202 and the diverter hole 201, thereby facilitating the abutment and fixation of the end of the first connecting tube 200 with the plate surface. Specifically, this structure can increase the connection area between a rigid and thick metal tube, such as stainless steel, and the first plate 21.

[0190] At this time, if Figure 3 As shown, when the plate body 20 is composed of two plate bodies, the second flange 33 of the diverter cone 30 can abut against the inner wall of the mounting hole 205 of the second plate body 22. At this time, the second flange 33 can be welded and fixed with the mounting hole 205. In addition, as shown in FIG. Figure 22 and Figure 23 As shown, in some embodiments of the present application, a positioning structure 2031 is provided on the plate body 20, and the positioning structure 2031 is an annular groove arranged along the circumference of the avoidance hole 203, and the annular groove is arranged between the first plate body 21 and the second plate body 22, and the diverter cone 30 includes a second annular flange 33, and the second flange 33 is fixed in the annular groove. In this embodiment, the design of the annular groove provides more fixing area, increases the number and strength of the fixing points. The second flange 33 of the diverter cone 30 fits tightly in the annular groove, further improving the fixing stability and preventing the structure from loosening or shifting under high pressure or long-term use. At the same time, the first plate body 21 and the second plate body 22 are clamped and positioned by the annular groove, ensuring the precise positioning of the diverter cone 30, so that the fixing operation can be completed more accurately during the installation process, reducing the deviation that may occur during the fixing process. In addition, since the annular groove can effectively disperse stress, the load borne by the diverter cone 30 during operation is more uniform, which reduces the stress concentration at the fixed connection, and makes the diverter assembly 1000 have better fatigue resistance when facing repeated fluid impact or long-term operation, thereby extending the service life of the equipment.

[0191] In this case, the annular groove includes a first step countersunk hole 211 and a second step countersunk hole 221. The first step countersunk hole 211 is provided on the end surface of the first plate 21 facing away from the inflow hole 111 and is coaxially arranged with the avoidance hole 203. The second step countersunk hole 221 is provided on the end surface of the second plate 22 facing the inflow hole 111 and is surrounded by the mounting hole 205. The first step countersunk hole 211 and the second step countersunk hole 221 together form an annular groove. The annular groove formed by the combination of the first step countersunk hole 211 and the second step countersunk hole 221 provides a clear positioning and fixing position for the second flange 33 of the diverter cone 30, ensuring that the diverter cone 30 can be accurately fixed between the first plate 21 and the second plate 22, reducing possible displacement or misalignment during the fixing process, and improving the accuracy and stability of the fixing. At the same time, the first step countersunk hole 211 and the second step countersunk hole 221 cooperate to form an annular groove, providing a closed positioning structure, ensuring a tight connection between the diverter cone 30 and the plate body 20, avoiding the problem of fluid leakage, and thus improving the sealing of the distributor 100.

[0192] like Figure 24 and Figure 25 As shown, the stepped countersunk hole is arranged circumferentially of the mounting hole 205 on the second plate body 22. The stepped countersunk hole is arranged on the end surface of the second plate body 22 away from the inflow hole 111, and the second flange 33 is fixedly connected to the stepped countersunk hole. In this embodiment, the stepped countersunk hole provides a precise fixed positioning area for the second flange 33 of the diverter cone 30, increases the contact area of ​​the fixed connection, and makes the fixed point more stable. At the same time, by providing the stepped countersunk hole on the second plate body 22, the second flange 33 of the diverter cone 30 can be accurately embedded, thereby providing precise radial positioning and a stable fixed connection. This design not only enhances the fixing firmness of the diverter cone 30, but also reduces the offset and error during the fixed connection.

[0193] Furthermore, the diversion assembly 1000 further includes a spoiler 50, which is provided between the inflow hole 111 and the diversion hole 201. Specifically, the provision of the spoiler 50 can effectively improve the diversion uniformity inside the expansion cavity 103, so as to further improve the mixing effect of the refrigerant, and help optimize the diversion effect of the distributor 100. At the same time, the provision of the spoiler 50 can also adjust the flow direction of the refrigerant, thereby achieving the purpose of reducing noise, and helping to further improve the use effect of the distributor 100. Optionally, the spoiler 50 is provided as a filter, such as Figure 4 and Figure 5 As shown, the filter screen is spherical and is disposed inside the expansion chamber 103, thereby dividing the expansion chamber 103 into two different flow chambers. Optionally, the filter screen is connected to the housing 10 by welding.

[0194] In some other embodiments of the present application, the spoiler 50 includes a filter 51, such as Figure 26 As shown, the filter element 51 is a first filter screen 511. The first filter screen 511 is spherically capped and protrudes toward one side of the inflow hole 111. In this case, the first filter screen 511 is mounted on the plate body 20, forming a first filter chamber 5111 between the plate body and the first filter screen 5111. The height of the first filter screen 511 coincides with the axis of the inflow hole 111, meaning that the highest point of the first filter screen 511 is located on the central axis of the inflow hole 111. In this case, no diverter cone is required within the expansion chamber 103. This design allows fluid to enter the inflow hole 111 by first contacting the center of the spherical cap-shaped curved filter screen and then be evenly distributed across the entire surface of the first filter screen 511. The spherical cap-shaped curved design allows fluid to more naturally contact the surface of the first filter screen 511, reducing flow resistance caused by the filter screen's planar structure. This more even distribution of fluid improves the flow efficiency of the distributor 100 and reduces energy loss as the fluid flows through the first filter screen 511. Furthermore, the spherical arc filter has a larger filtration surface area than a flat filter. This means that the first filter 511 of the same volume can process more fluid and filter out more particulate matter, further enhancing the filtration effect of the dispenser 100. By increasing the filtration area, the pressure per unit area on the filter is effectively reduced, extending the service life of the first filter 511.

[0195] In some other embodiments of the present application, a diverter cone 30 is disposed within the expansion chamber 103, and the filter element 51 is a second filter screen 512. The second filter screen 512 is an annular, grooved filter screen. The second filter screen 512 is disposed around the exterior of the diverter cone 30, and a second filter chamber 5121 is formed between the second filter screen 512 and the plate body 20. The plurality of diverter holes 201 are all connected to the second filter chamber 5121. The diverter cone 30 allows for initial diversion of the fluid after entering the expansion chamber 103. The conical structure of the diverter cone 30 can evenly direct the fluid in all directions of the expansion chamber 103, ensuring that the fluid is evenly distributed on the surface of the second filter screen 512, reducing fluid turbulence within the expansion chamber 103, optimizing the fluid distribution path, and thereby improving distribution efficiency. The annular structure allows the filter screen to evenly surround the diverter cone 30, ensuring that the fluid is fully filtered before entering the diverter holes 201, thereby enhancing filtration efficiency. Furthermore, the second filter 512 is located behind the top of the diverter cone 30 and forms a second filter chamber 5121 with the plate body 20, capable of filtering the fluid passing through the diverter cone 30. Because the fluid in the second filter chamber 5121 maintains a uniform flow rate and flow rate due to the dual effects of the diverter cone 30 and the second filter 512, the fluid flow received by each diverter hole 201 is relatively balanced. This uniform distribution design improves the diversion accuracy of the entire system, offering significant advantages, particularly in high-precision fluid delivery systems.

[0196] It is further understood that the plate body 20 is provided with reinforcing ribs 23, and the filter element 51 is connected to the plate body 20 via the reinforcing ribs 23. The reinforcing ribs 23 are generally rib-like structures provided on the plate body 20, and are used to enhance the support and fixation effect of the filter element 51. The reinforcing ribs 23 can be designed to be distributed along the circumference of the filter element 51 to ensure that the overall structure of the filter element 51 will not be deformed or fall off under the action of fluid pressure. Figure 2 As shown in the first embodiment, the reinforcing ribs 23 are distributed in a ring shape on the circumferential edge of the plate body 20, and the first filter screen 511 is connected to the circumferential edge of the plate body 20 through the reinforcing ribs 23. Figure 4 As shown, in the second embodiment, the number of reinforcing ribs 23 is two, one of which is distributed in a ring shape on the circumferential edge of the plate body 20, and the outer ring of the second filter screen 512 is connected to the reinforcing rib 23, and the other reinforcing rib 23 is also distributed in a ring shape at the connection between the plate body 20 and the diverter cone 30, and the inner ring of the second filter screen 512 is connected to the reinforcing rib 23.

[0197] It is understandable that the filter element 51 is connected to the reinforcement rib 23 by welding, and the reinforcement rib 23 is also welded to the plate body 20. This welding method provides a fixing effect with high strength and good stability, and is suitable for working conditions of high-pressure or high-flow fluid.

[0198] Furthermore, the diversion component also includes an adjustment structure, which is arranged inside the inlet pipe 301, and the adjustment structure is used to mix the refrigerant flowing from the incident cavity 101 into the expansion cavity 103. Specifically, the adjustment structure can be set as an orifice plate 80, and a through hole is opened on the orifice plate 80, and the plate body 20 is suitable for being arranged inside the incident cavity 101. The number of through holes is greater than or equal to the number of diversion holes 201. Specifically, by setting the inlet pipe 301 and the orifice plate 80, preliminary diversion and mixing can be performed before the refrigerant enters the distributor 100, which helps to cooperate with the diversion cone 30 described below, and can further improve the mixing effect of the refrigerant. Optionally, the number of through holes is the same as the number of diversion holes 201. It can effectively ensure the mixing effect of the refrigerant after it flows through the through holes, and at the same time, it can also cooperate with the diversion hole 201 to ensure the flow effect of the refrigerant.

[0199] Furthermore, in some embodiments of the present application, when only one plate body 20 is provided, the flow diversion assembly further includes a connector 40, which is disposed on the plate body 20 and has a plurality of insertion holes 410, each of which is connected to a corresponding diversion hole 201. The first connecting tube 200 is connected to the distributor 100 via the connector 40, and one end of the first connecting tube 200 is inserted into each insertion hole 410, and the diversion holes 201 are connected to the first connecting tube 200.

[0200] Specifically, by arranging a connector 40 on the distributor 100 for the insertion of the first connecting tube 200 and ensuring that the first connecting tube 200 is connected to the diversion hole 201 of the distributor 100, at this time, by arranging a connector 40 with a plug-in hole 410, on the one hand, it can provide a positioning function for the insertion connection of the first connecting tube 200, thereby helping to solve the centering problem between multiple accessories (the first connecting tube 200 and the diversion hole 201) when fitting; on the other hand, it can reduce the structural requirements of the plug-in connection of the first connecting tube 200 on the distributor 100, which can greatly reduce the weight of the distributor 100, realize the lightweight of the distributor 100, and then realize the lightweight of the diversion assembly and reduce the assembly cost; thirdly, by extending the depth of the plug-in hole 410, the contact area between the connector 40 and the first connecting tube 200 can be increased, thereby improving the connection effect between the distributor 100 and the first connecting tube 200, and enhancing the subsequent welding strength, thereby helping to solve the problem of poor connection effect between the existing distributor 100 and the connecting tube.

[0201] In this case, the connecting portion 41 and the barrel 42 are integrally formed. The connecting portion 41 is configured as a plate, and one of the side surfaces of the connecting portion 41 is in contact with the plate 20. The top surface of the connecting portion 41 can cooperate with the inner wall or top surface of the mounting portion 12 to form a contact point required for welding. The circumferential surface of the connecting portion 41 can also form a welding surface required for welding with the mounting surface of the plate 20. Furthermore, the barrel 42 is generally cylindrical and defines the aforementioned insertion hole 410. The first connecting tube 200 is adapted to be inserted within the barrel 42. The circumferential surface of the first connecting tube 200 can cooperate with the end surface of the barrel 42 facing away from the connecting portion 41 to form a welding surface. By welding the first connecting tube 200 to the barrel 42, and the connecting portion 41 to the dispenser 100, the first connecting tube 200 can be securely connected to the dispenser 100, thereby improving the structure of the dispenser 100 and reducing its weight.

[0202] It should be pointed out that due to the setting of the cylinder 42, the insertion depth of the first connecting tube 200 can be effectively guaranteed or increased, and the thickness requirement of the connecting part 41 for the insertion of the first connecting tube 200 can be reduced, which helps to reduce the weight of the connecting part 40, thereby ensuring the connection between the first connecting tube 200 and the distributor 100, and realizing the lightweighting of the diversion component and reducing the component cost.

[0203] In some embodiments of the present application, there is one connecting portion 41 , and there are multiple cylinders 42 , and the multiple cylinders 42 are spaced apart along the circumference of the inflow hole 111 .

[0204] Specifically, by limiting the connector 40 to have a connecting portion 41 and multiple cylinders 42, the structural strength of the connector 40 can be effectively increased. At the same time, providing a connecting portion 41 allows a connecting portion 41 to be adapted and connected to the distributor 100, thereby achieving alignment between the plug-in hole 410 and the diversion hole 201 during matching, and further achieving concentric arrangement of the first connecting pipe 200 and the diversion hole 201, which helps to make the flow of the refrigerant more uniform and ensure a better mixing effect.

[0205] It is important to understand that if Figure 28 and Figure 29 As shown, the mounting portion 12 of the housing 10 is formed with a cylindrical mounting cavity 104, and the connecting portion 41 is configured as a circular plate and is adapted to connect with the mounting cavity 104. At this time, the insertion hole 410 of the barrel 42 is concentrically arranged with the diverter hole 201, and when the first connecting tube 200 is disposed in the insertion hole 410, the first connecting tube 200 and the diverter hole 201 are concentrically arranged. This configuration helps solve the problem of centering between multiple accessories (the first connecting tube 200 and the diverter hole 201) when they are mated. At the same time, multiple barrels 42 are spaced apart circumferentially along the inflow hole 111, so that multiple first connecting tubes 200 are arranged circumferentially along the inflow hole 111. This, in conjunction with the diverter cone 30 described below, can effectively improve the diversion effect of the distributor 100. Optionally, multiple cylinders 42 are arranged at equal intervals along the circumference of the inflow hole 111, which on the one hand helps to further improve the matching effect between the first connecting pipe 200 and the diverter cone 30; on the other hand, sufficient welding space can be formed to ensure the connection effect between the first connecting pipe 200 and the cylinder 42.

[0206] Furthermore, the number of the connecting portions 41 is consistent with the number of the diversion holes 201 , and each connecting portion 41 is correspondingly provided with a cylinder 42 .

[0207] Specifically, by limiting the number of connecting parts 41 to be consistent with the number of diversion holes 201, the number of connecting parts 41 is made multiple, and at this time, a cylinder 42 is correspondingly provided on each connecting part 41. In this way, the connecting part 40 can be converted into a standardized sample that is only related to the pipe diameter specification, which helps to simplify the components of the diversion assembly and improve welding reliability.

[0208] It is important to understand that if Figure 30As shown, in this embodiment, the first end face of the mounting portion 12 and the top face of the plate body 20 are located in the same plane. At the same time, there are multiple connectors 40, and the multiple connectors 40 are arranged in a one-to-one correspondence with the multiple diversion holes 201. The connector 40 includes a cylinder 42 and a connecting portion 41. The cylinder 42 is a circular tube structure. The connecting portion 41 is located at one end of the cylinder 42 and is extended radially along the cylinder 42. The connecting portion 41 is fitted and connected to the plate body 20. At this time, the connector 40 can be designed according to the diameter of the first connecting pipe 200, the welding process overlap surface, and the depth of the cylinder 42, so that the connector 40 forms a standardized sample related to the pipe diameter specification, which helps to simplify the components of the diversion assembly and improve the reliability of welding.

[0209] It should be pointed out that setting the connector 40 as a standardized sample can, on the one hand, increase the contact area between the connecting portion 41 and the top surface of the plate body 20, thereby improving the convenience of welding; on the other hand, it can reduce the correlation between the connector 40 and the distributor 100, thereby improving the applicability of the connector 40 and helping to reduce the production cost of the diversion assembly.

[0210] Furthermore, the first connecting pipe 200 includes a regulating pipe section 230 and a flow pipe section 240 . The flow pipe section 240 is connected to the regulating pipe section 230 . The flow area of ​​the regulating pipe section 230 is smaller than the flow area of ​​the flow pipe section 240 .

[0211] It can be understood that the first connecting tube 200 is used to connect the expansion cavity 103 with the heat exchange tubes of the heat exchanger. One end of the first connecting tube 200 can be inserted into the diversion hole 201 to achieve fixation, or the end face of the first connecting tube 200 is welded to the plate surface of the plate body 20 away from the expansion cavity 103 to achieve fixation. The first connecting tube 200 has a regulating tube section 230 that can adjust the flow rate. The regulating tube section 230 can be located at one end of the first connecting tube 200 close to the shell 10, or at the middle of the first connecting tube 200. The regulating tube section 230 can be a reducing structure, so that the diameter of the first connecting tube 200 is reduced to adjust the flow area. Specifically, Figures 31 to 33 During the processing of the first connecting tube 200, the diameter of a portion of the tube can be narrowed by stamping. For example, the diameter of the end of the first connecting tube 200 that is inserted into the diverter hole 201 can be narrowed to form the adjustable tube segment 230. The adjustable tube segment 230 can also be realized by providing an adjusting member 2302 within the body 2301 of the first connecting tube 200. Adjusting the flow area of ​​the first connecting tube 200 through the adjusting hole 2303 on the adjusting member 2302 can also achieve the function of adjusting the distribution flow according to actual conditions, thereby replacing the function of the original diverter hole 201 plate. This makes the overall structure more compact, facilitates processing, and reduces costs.

[0212] The flow regulation function is achieved through the regulating pipe section 230 of the first connecting pipe 200. The flow area of ​​the regulating pipe section 230 can be pre-set to assume the flow regulation function of the fluid. The first connecting pipe 200 is fixed through the diversion hole 201 on the plate body 20 and is connected to the expansion cavity 103 inside the shell 10. The original diversion hole plate responsible for diversion and flow regulation can be eliminated, making the structure more compact, reducing production costs and facilitating installation.

[0213] Furthermore, the diverter assembly further includes a first adapter 60 , one end of the first adapter 60 is connected to the second connecting section 260 , and the other end of the first adapter 60 is used to be inserted into the inlet 2001 of the first heat exchanger.

[0214] Specifically, the provision of the first adapter 60 can improve the connection performance of the first connecting tube 200 while ensuring the rigidity of the first connecting tube 200. The provision of the first adapter 60 helps reduce the possibility of the first connecting tube 200 being unable to be inserted into the first heat exchanger. Furthermore, it allows the first connecting tube 200 to be compatible with inlets 2001 of first heat exchangers of different sizes, thereby improving the applicability of the flow splitter assembly and further improving the connection method between the first connecting tube 200 and the inlet 2001.

[0215] It should be understood that in this embodiment, the inlet 2001 of the first heat exchanger is secured to the first connecting pipe 200 by welding. However, if the inlet 2001 of the first heat exchanger and the first connecting pipe 200 are made of different materials, such as if the first connecting pipe 200 is a stainless steel pipe and the first heat exchanger is a copper or aluminum pipe, a first adapter 60 is provided between the first connecting pipe 200 and the first heat exchanger to facilitate welding. The first adapter 60 is made of the same material as the inlet 2001 of the first heat exchanger, thereby improving the connection between the diverter assembly and the first heat exchanger.

[0216] It should be further understood that the first heat exchanger is connected to the first adapter 60, and the connection methods include but are not limited to plugging, screwing, welding, clamping, bonding, etc. Figure 6 As shown, in some embodiments of the present application, one end of the first adapter 60 is inserted into the interior of the second connecting section 260 and is fixedly connected to the second connecting section 260. In this case, the fixed connection refers to the end surface of the second connecting section 260 facing the first adapter 60 being welded to the circumference of the first adapter 60. In actual operation, the first heat exchanger and the first adapter 60 are pre-connected and fixed using a welding process (manual welding or automated welding). In this case, the diameter and wall thickness of the first adapter 60 can be the same as or different from those of the connecting pipe.

[0217] Furthermore, the first connecting pipe 200 includes a rigid portion, the ratio of the length of the rigid portion to the length of the first connecting pipe 200 being within a range of 60%-95%. Specifically, by limiting the rigidity of at least a portion of the first connecting pipe 200, the first connecting pipe 200 is less susceptible to deformation, helping to resolve the springback problem during welding of the connecting pipe to the heat exchanger, thereby facilitating automated welding of the heat exchanger and the connecting pipeline. Furthermore, by limiting the flow direction of the first connecting section 250 to intersect with the flow direction of the second connecting section 260, the spacing between the distributor 100 and the first heat exchanger is reduced. Combined with the rigidity limitation of the first connecting pipe 200, the connection between the distributor 100 and the first heat exchanger can be further improved, thereby enhancing the performance of the diversion assembly.

[0218] It should be noted that at least a portion of the first connecting pipe 200 is rigid, where rigidity refers to resistance to deformation. Optionally, the first connecting pipe 200 is entirely made of a relatively rigid material, such as stainless steel or carbon steel. In this case, the first connecting pipe 200 is not easily deformed and can effectively solve the problem of springback when welding the connecting pipe to the heat exchanger. Optionally, at least a portion of the first connecting pipe 200 is made of a relatively rigid material. In this case, the first connecting pipe 200 can also effectively solve the problem of springback when welding the connecting pipe to the heat exchanger.

[0219] It should be understood that the first connecting pipe 200 has a flexible portion and a rigid portion. The rigid portion is used to connect to the distributor 100 and the first heat exchanger, thereby ensuring welding of the first connecting pipe 200 to the distributor 100 or the first heat exchanger. The flexible portion is used to adjust the relative position of the first connecting section 250 and the second connecting section 260, thereby ensuring a better fit and connection with the distributor 100 or the first heat exchanger.

[0220] It should be noted that due to cumulative tolerances, all first connecting tubes 200 are made of a relatively rigid material, which can easily prevent the first connecting tube 200 from being inserted into the first heat exchanger. By limiting the proportion of the flexible portion on the first connecting tube 200, the first connecting tube 200 is given a certain degree of flexibility, allowing for slight adjustments to the insertion position. Furthermore, the rigidity of the first connecting tube 200 is ensured, preventing springback when welded to the first heat exchanger.

[0221] It should be further understood that the flexible portion is a less rigid portion and is therefore more susceptible to deformation than the rigid portion. In this embodiment, the flexible portion is made of copper or another material. Optionally, the flexible portion is a copper member. Furthermore, the flexible portion can be disposed between the first connecting section 250 and the second connecting section 260, i.e., all or part of the bending section can be disposed in a copper member. Alternatively, the flexible portion can be disposed at both ends of the first connecting pipe 200, i.e., at least one of the first connecting section 250 and the second connecting section 260 can be a flexible portion. The following description uses the second connecting section 260 as an example. The second connecting section 260 can be entirely copper, or the portion connecting the second connecting section 260 and the bending section can be copper, or the plug-in connection between the second connecting section 260 and the first heat exchanger can be copper, so as to enable plug-in connection with the first connecting pipe 200. Accordingly, the configuration of the first connecting section 250 can refer to the configuration of the second connecting section 260.

[0222] Furthermore, the first connecting pipe 200 includes a first connecting section 250 and a second connecting section 260. The first connecting section 250 is used to communicate with the first heat exchanger of the HVAC equipment, and the second connecting section 260 is connected to the distributor 100. The extension direction of the first connecting section 250 intersects with the extension direction of the second connecting section 260. By limiting the flow direction of the first connecting section 250 to intersect with the flow direction of the second connecting section 260, the distance between the distributor 100 and the first heat exchanger is reduced. Combined with the rigidity limit of the first connecting pipe 200, the connection between the distributor 100 and the first heat exchanger can be further improved, thereby enhancing the performance of the diversion assembly.

[0223] It should be understood that the first connecting tube 200 has a first connecting section 250, a second connecting section 260 and a bending section, wherein the first connecting section 250 and the second connecting section 260 are both straight sections, and the bending section is connected and arranged between the first connecting section 250 and the second connecting section 260 to change the flow direction of the refrigerant. Specifically, the first connecting section 250 is connected to the expansion cavity 103 through the diversion hole 201 of the distributor 100, and the second connecting section 260 is connected to the first heat exchanger of the HVAC equipment. At the same time, the extension direction of the first connecting section 250 intersects with the extension direction of the second connecting section 260. Optionally, the extension direction of the first connecting section 250 is perpendicular to the extension direction of the second connecting section 260. By limiting the structure of the first connecting pipe 200 and the material of the first connecting pipe 200, on the one hand, the first connecting pipe 200 can be made less likely to deform. On the other hand, it can be arranged according to the space between the distributor 100 and the first heat exchanger, thereby improving the connection effect between the distributor 100 and the first heat exchanger. Such a setting helps to further solve the rebound problem during welding of the connecting pipe and the heat exchanger, and realizes the automated welding of the heat exchanger and the connecting pipeline.

[0224] The second aspect of the present invention further proposes a HVAC device 1, which includes a first heat exchanger 2000 and the above-mentioned diversion component 1000, wherein the first connecting pipe 200 of the diversion component 1000 is connected to the first heat exchanger 2000.

[0225] Compared with the prior art, the HVAC equipment 1 proposed in the present invention has the technical advantages possessed by the above-mentioned diversion component 1000, which will not be described in detail here.

[0226] 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 changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A diversion component for HVAC equipment, characterized in that: include: a housing, the housing having an inlet hole and an expansion cavity connected to the inlet hole, the expansion cavity having an opening on a side facing away from the inlet hole, and an inner diameter of the expansion cavity gradually increasing from the inlet hole to the opening; a plate body, the plate body being arranged on the shell and sealing the opening, the plate body having a plurality of diversion holes; a first connecting pipe, wherein the number of the first connecting pipes is multiple, and the multiple first connecting pipes are respectively connected to the plate body, and each of the diversion holes is correspondingly connected to one of the first connecting pipes; An inlet pipe is connected to the shell and communicated with the inlet hole. The inlet pipe cooperates with the shell to form an incident cavity, a steady flow cavity and an expansion cavity that are connected in sequence. The inner diameter of the incident cavity is larger than the inner diameter of the steady flow cavity, and the inner diameter of the steady flow cavity is less than or equal to the aperture of the inlet hole.

2. The flow diversion assembly according to claim 1, characterized in that: The housing is provided with a first inserting portion, which defines the inflow hole, and the inlet pipe is adaptively connected to the first inserting portion.

3. The flow diversion assembly according to claim 2, characterized in that: An insertion section is provided at one end of the inlet pipe facing the housing, at least a portion of the insertion section passes through the inflow hole and extends into the interior of the expansion cavity; Along the direction of the inlet pipe facing the shell, the first end of the insertion section is connected to the incident cavity, the second end of the insertion section is in a closed state and is located inside the expansion cavity, and along the circumference of the insertion section, a plurality of outflow holes are provided on the side wall of the insertion section, and the plurality of outflow holes are located inside the expansion cavity and are spaced apart from the plate body.

4. The flow diversion assembly according to claim 1, characterized in that: The inlet pipe and the shell are integrally formed.

5. The flow diversion assembly according to claim 1, characterized in that: One end of the inlet pipe facing away from the shell is in a closed state, and a side hole is provided on the wall of the inlet pipe; The diversion assembly also includes an incoming flow pipe, one end of which is connected to the inlet pipe through the side hole, and the other end of which is used for the inflow of refrigerant, and the incoming flow pipe is arranged tangent to the inlet pipe.

6. The flow diversion assembly according to claim 1, characterized in that: The diversion component also includes: An inlet flow tube, wherein the first end of the inlet flow tube is connected to the inlet pipe and communicates with the incident cavity, the second end of the inlet flow tube is used for the inflow of refrigerant, and the inlet flow tube has a flow turbulence structure, and the flow turbulence structure is used to mix the refrigerant flowing from the second end of the inlet flow tube to the inlet pipe.

7. The flow diversion assembly according to claim 1, characterized in that: The diversion component also includes: A diverter cone is provided on the plate body, the diverter cone is coaxially arranged with the inflow hole, and the diverter cone is used to guide the refrigerant from the inflow hole to the diverter hole.

8. The flow diversion assembly according to claim 1, characterized in that: The diverter assembly further includes a spoiler, which is arranged between the inflow hole and the diverter hole; And / or, the diversion component further includes a regulating structure, which is arranged inside the inlet pipe and is used to mix the refrigerant flowing from the incident cavity into the expansion cavity.

9. The flow diversion assembly according to claim 1, characterized in that: The plate body comprises: a first plate body, the first plate body being disposed in the housing and blocking the opening, the first plate body having a plurality of the diversion holes; The second plate body is connected to the side of the first plate body away from the expansion cavity, the second plate body has a plurality of insertion holes, the aperture of the insertion holes is larger than the aperture of the diversion hole, the first connecting pipe is inserted into the insertion hole and connected to the diversion hole.

10. The flow diversion assembly according to claim 1, characterized in that: The plate body is provided with a plurality of plug-in parts, which are arranged at intervals along the circumference of the inflow hole. The plug-in parts are adapted to be connected with the first connecting pipe. The plug-in parts have an extension structure extending out of the plate body. The extension structure is provided with the diversion hole, and the diversion hole is concentrically arranged with the first connecting pipe.

11. The flow diversion assembly according to claim 1, characterized in that: The diversion component also includes: A connecting member, the connecting member being arranged on a side of the plate body away from the expansion cavity, the connecting member having a plurality of plug holes, each of the plug holes correspondingly connected to one of the diversion holes; The first connecting pipe is connected to the plate body through the connecting piece, one end of the first connecting pipe is inserted into each of the plug holes, and the diversion hole is communicated with the first connecting pipe.

12. The flow diversion assembly according to claim 1, characterized in that: The first connecting pipe includes a regulating pipe section and a circulation pipe section. The circulation pipe section is communicated with the regulating pipe section. The circulation area of ​​the regulating pipe section is smaller than the circulation area of ​​the circulation pipe section.

13. The flow diversion assembly according to claim 1, characterized in that The diversion component also includes: A first adapter, one end of which is connected to an end of the first connecting pipe facing away from the plate body, and the other end of the first adapter is used to communicate with the first heat exchanger of the HVAC equipment.

14. The flow diversion assembly according to any one of claims 1 to 13, characterized in that: The first connecting pipe includes a rigid portion, and a ratio of a length of the rigid portion to a length of the first connecting pipe is in a range of 60%-95%.

15. The flow diversion assembly according to claim 14, characterized in that: The first connecting pipe has a first connecting section and a second connecting section. The first connecting section is connected to the plate body, and the second connecting section is used to communicate with the first heat exchanger of the HVAC equipment. The extension direction of the first connecting section intersects with the extension direction of the second connecting section.

16. A heating and ventilation equipment, characterized in that: The HVAC equipment includes: a first heat exchanger; a second heat exchanger; According to any one of claims 1 to 15, the first connecting pipe is connected to the first heat exchanger, and the inlet pipe is connected to the second heat exchanger.

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