Flow dividing assembly and heating and ventilation equipment

Abstract

The utility model particularly relates to a flow dividing assembly and heating and ventilation equipment. The flow dividing assembly comprises a distributor and a second connecting pipe. The distributor is provided with an inflow hole, an expansion cavity and a plurality of flow dividing holes which are formed in sequence, and the inflow hole communicates with the flow dividing holes through the expansion cavity. And at least part of the second connecting pipe penetrates through the inflow hole and extends to the insertion section in the expansion cavity. In the direction from the inflow hole to the diversion hole, the first end of the insertion section is used for allowing a refrigerant to flow in, the second end of the insertion section is in a closed state and located in the expansion cavity, a plurality of outflow holes are formed in the circumferential direction of the insertion section, and the inflow holes are located in the expansion cavity and spaced from the second end of the insertion section. According to the flow dividing assembly, the blind pipe structure at the second end of the insertion section is used for mixing the backflow effect caused by flowing of gas and liquid refrigerants at the inlet, the effect of fully mixing the gas and the liquid refrigerants is achieved, and the problems of bias flow caused by uneven distribution of the sections of the refrigerants in an incoming flow pipe and uneven mixing of the refrigerants in an old distributor are solved.

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] For HVAC equipment, there are generally two modes: cooling mode and heating mode. At this time, the cooling mode and heating mode are both for the indoor heat exchanger. When the indoor heat exchanger is in cooling mode or heating mode, the outdoor heat exchanger is in heating mode and cooling mode respectively.

[0003] In cooling mode, the compressor compresses the low-temperature, low-pressure refrigerant to a high-temperature, high-pressure state. The refrigerant then flows into the outdoor heat exchanger, where it condenses into a high-pressure, medium-temperature liquid refrigerant. This liquid refrigerant then passes through a throttling component, transforming it into a low-temperature, low-pressure, two-phase refrigerant. This two-phase refrigerant then flows through a distributor before entering the indoor heat exchanger. The distributor distributes the two-phase refrigerant according to the refrigerant demand for each flow path, and then enters the indoor heat exchanger for heat exchange, achieving the cooling effect. In this case, the outdoor heat exchanger acts as the condenser, and the indoor heat exchanger acts as the evaporator. After heat exchange, the low-temperature, low-pressure refrigerant ultimately enters the return air port of the compressor for subsequent circulation. In heating mode, the compressed refrigerant first enters the indoor heat exchanger for condensation. In this case, the indoor heat exchanger acts as the condenser, while the outdoor heat exchanger acts as the evaporator. The distributor distributes the liquid or gaseous refrigerant flowing from the condenser to the evaporator.

[0004] Due to the limitation of the space of the whole machine, the inlet (inflow pipe) of the distributor is often provided with a structure with a bend. At this time, the gas-liquid two-phase refrigerant is prone to the liquid phase bending outward at the bend, that is, the refrigerant flows biasedly in the inflow pipe due to the uneven cross-sectional distribution. Moreover, after the gas-liquid two-phase refrigerant enters the mixing chamber of the distributor, it is easy for uneven mixing to occur, thereby affecting the subsequent heat exchange effect. Utility Model Content

[0005] The purpose of this utility model is to at least solve the problem of refrigerant flow deviation caused by uneven cross-sectional distribution and uneven refrigerant mixing in old-style distributors. This purpose is achieved through the following technical solutions:

[0006] The first aspect of the present invention provides a flow diversion assembly, comprising:

[0007] A distributor, the distributor comprising an inlet hole, an expansion cavity, and a plurality of diversion holes arranged in sequence, the inlet hole being connected to the plurality of diversion holes through the expansion cavity;

[0008] a second connecting pipe connected to the distributor, the second connecting pipe having an insertion section, at least a portion of which passes through the inflow hole and extends into the interior of the expansion cavity;

[0009] Along the direction from the inflow hole to the diversion hole, the first end of the insertion section is used for the inflow of refrigerant, the second end of the insertion section is in a closed state and is located inside the expansion cavity, and a plurality of outflow holes are provided along the circumference of the insertion section. The plurality of outflow holes are located inside the expansion cavity and are spaced apart from the second end of the insertion section.

[0010] The diversion component described in the present invention includes a distributor and a second connecting pipe, wherein the second connecting pipe has an insertion section, and part of the insertion section is inserted in the expansion cavity of the distributor. By limiting the position of the outflow hole in the insertion section, a blind tube structure can be formed at one end of the insertion section, and the blind tube structure is located inside the expansion cavity. At this time, due to the blind tube effect, the refrigerant forms a reflux at the inlet (outflow hole) of the expansion cavity, thereby realizing the preliminary mixing of the gas-liquid refrigerant, and the mixed refrigerant can flow into the expansion cavity through small holes evenly distributed in the circumference. The blind tube structure can be used to mix the gas-liquid refrigerant due to the reflux effect caused by the flow of the gas-liquid refrigerant at the inlet (outflow hole) of the expansion cavity, so that the gas-liquid refrigerant can be fully mixed, which is conducive to solving the problem of uneven flow caused by the uneven cross-sectional distribution of the refrigerant in the incoming flow pipe and the uneven refrigerant mixing of the old distributor.

[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, the distributor includes a plate body, and the plate body and the inflow hole are respectively arranged on opposite sides of the expansion cavity. A plurality of diversion holes are provided on the plate body, and the plurality of diversion holes are arranged around the inflow hole as the center.

[0013] In some embodiments of the present invention, the second end of the insertion section is connected to the plate body, and the second end of the insertion section is closed by the plate body.

[0014] In some embodiments of the present invention, the second connecting tube further includes a cover body, the cover body is connected to the insertion section, and the second end of the insertion section is closed by the cover body.

[0015] In some embodiments of the present invention, the dispenser further comprises:

[0016] A spoiler is disposed inside the expansion cavity and between the plurality of outflow holes and the plurality of diversion holes.

[0017] In some embodiments of the present invention, the spoiler is configured as a mesh structure, and the mesh structure is provided on the dispenser and covers the second end of the insertion section;

[0018] Alternatively, the spoiler is configured as a mesh structure, and the mesh structure is provided on the insertion segment and accommodates the second end of the insertion segment.

[0019] In some embodiments of the present invention, the insertion section has a diameter-reducing portion, and the diameter-reducing portion is located between the first end of the insertion section and the outflow hole.

[0020] In some embodiments of the present invention, along the direction from the inflow hole to the diversion hole, the inner diameter of the diameter-changing portion first decreases and then increases.

[0021] In some embodiments of the present invention, a reducing structure is provided at one end of the second connecting pipe. Along the direction from the second connecting pipe to the distributor, the reducing structure is composed of a reducing section and an insertion section in sequence, and the minimum inner diameter of the reducing section is the same as the inner diameter of the insertion section.

[0022] In some embodiments of the present invention, the distributor includes a housing, the housing is provided with a first inserting portion, and the first inserting portion is adaptively connected to the second connecting pipe.

[0023] In some embodiments of the present invention, along the circumference of the inflow hole, the housing extends in a first direction to form the first inserting portion, and the first direction is a direction in which the housing faces the second connecting pipe;

[0024] Alternatively, along the circumference of the inflow hole, the shell is extended in a second direction to form the first inserting portion, and the second direction is a direction in which the shell is away from the second connecting pipe.

[0025] The second aspect of the present invention further provides a HVAC device, which includes the diversion assembly as described in the present invention.

[0026] 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

[0027] 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:

[0028] Figure 1 Schematically shows the structural diagram of the HVAC equipment according to the embodiment of the utility model

[0029] Figure 2 for Figure 1The structural diagram of the diversion component shown in FIG;

[0030] Figure 3 for Figure 2 An enlarged schematic diagram of the local structure of the diversion component shown in FIG;

[0031] Figure 4 for Figure 3 A cross-sectional schematic diagram of the diversion assembly shown in FIG;

[0032] Figure 5 for Figure 3 A cross-sectional schematic diagram of another structure of the diverter assembly shown in ;

[0033] Figure 6 for Figure 3 A cross-sectional schematic diagram of a third structure of the diverter assembly shown in FIG;

[0034] Figure 7 for Figure 3 A cross-sectional schematic diagram of a fourth structure of the diverter assembly shown in FIG;

[0035] Figure 8 for Figure 1 Another structural schematic diagram of the diversion component shown in;

[0036] Figure 9 for Figure 8 Schematic cross-section of the flow diversion assembly shown in FIG.

[0037] The symbols in the accompanying drawings represent the following:

[0038] 1. HVAC equipment;

[0039] 1000, diversion assembly; 2000, first heat exchanger; 3000, second heat exchanger; 4000, compressor; 5000, refrigeration throttle valve; 6000, four-way valve;

[0040] 100. Distributor;

[0041] 200, first connecting pipe;

[0042] 300, second connecting pipe; 301, inlet pipe; 3011, outflow hole; 3012, diameter reduction structure; 30121, insertion section; 301211, diameter reducing portion; 30122, diameter reduction section; 3013, incident section;

[0043] 30101, cover;

[0044] 10. Shell; 103. Expansion chamber;

[0045] 11. First insertion portion; 111. Inflow hole; 12. Mounting portion;

[0046] 20. Plate body; 201. Diverter hole; 202. Insertion hole;

[0047] 21. First plate; 22. Second plate;

[0048] 50. Spoiler. DETAILED DESCRIPTION

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] like Figure 1-Figure 7 As 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.

[0054] 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.

[0055] 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.

[0056] In terms of overall design, Figures 2 to 7 As shown, the flow diversion assembly 1000 includes a distributor 100, a first connecting pipe 200, and a second connecting pipe 300. The distributor 100 has an inflow hole 111, an expansion cavity 103, and a plurality of diversion holes 201, arranged in sequence. The inflow hole 111 communicates with the plurality of diversion holes 201 through the expansion cavity 103. The second connecting pipe 300 is connected to the distributor 100 and includes an insertion section 30121. At least a portion of the insertion section 30121 passes through the inflow hole 111 and extends into the interior of the expansion cavity 103. Along the direction from the inflow hole 111 to the diversion hole 201, the first end of the insertion section 30121 is used to allow refrigerant to flow in. The second end of the insertion section 30121 is closed and located within the expansion cavity 103. A plurality of outflow holes 3011 are provided along the circumference of the insertion section 30121. The plurality of outflow holes 3011 are located within the expansion cavity 103 and spaced apart from the second end of the insertion section 30121.

[0057] 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.

[0058] It is important to understand that if Figure 3 、 Figure 5 and Figure 7As shown, along the vertical direction, the distributor 100 has an inflow hole 111, an expansion cavity 103 and a plurality of diversion holes 201 arranged in sequence. In this embodiment, the expansion cavity 103 is hemispherical as a whole, the inflow cavity is located at the bottom of the expansion cavity 103, and the plurality of diversion holes 201 are located at the top of the expansion cavity 103. The refrigerant can enter the expansion cavity 103 from the inflow hole 111 and flow through the expansion cavity 103 to each diversion hole 201.

[0059] In this embodiment, the second connecting tube 300 can be connected to the distributor 100. The second connecting tube 300 includes an inlet tube 301. An insertion section 30121 is provided at one end of the inlet tube 301 facing the second connecting tube 300. The first end of the insertion section 30121 can be connected to the outside for allowing refrigerant to flow in. The second end of the insertion section 30121 is closed and located within the expansion chamber 103. In this case, the insertion section 30121 can be fully or partially inserted into the distributor 100. At the same time, a plurality of outflow holes 3011 are formed on the outer wall of the insertion section 30121. The plurality of outflow holes 3011 are spaced apart along the circumference of the insertion tube. This allows the portion of the insertion section 30121 in the expansion chamber 103 to form a blind tube structure, thereby achieving a pre-mixing effect on the refrigerant. The mixed refrigerant then flows out through the circumferentially evenly distributed outflow holes 3011, which helps to improve the liquid separation problem caused by the biased flow of the inlet refrigerant.

[0060] It should be noted that the present application utilizes a blind tube structure to mix the gas and liquid refrigerants due to the backflow effect caused by the flow at the expansion chamber inlet (outflow hole 3011), thereby achieving the effect of sufficient mixing of the gas and liquid refrigerants, which is conducive to solving the problem of biased flow caused by the uneven cross-sectional distribution of the refrigerant in the inlet pipe and the uneven mixing of the refrigerant in the old distributor. Among them, due to the provision of multiple outflow holes 3011, the expansion chamber 103 does not need a diverter cone, which helps to solve the problem of poor alignment between the diverter cone and the inflow hole 111. At the same time, it can also simplify the structure of the distributor 100, reduce the difficulty of manufacturing the distributor 100, and thus help improve the assembly effect of the diverter component 1000.

[0061] Furthermore, the distributor 100 includes a plate body 20 , which is disposed on opposite sides of the expansion cavity 103 from the inflow hole 111 . The plate body 20 is provided with a plurality of diversion holes 201 , which are arranged around the inflow hole 111 .

[0062] Specifically, by limiting the distributor 100 to include a plate body 20, the plurality of diverter holes 201 can be arranged on the same horizontal plane (first plane). Simultaneously, because the plurality of outflow holes 3011 are located on the same horizontal plane (second plane), and the first plane and the second plane are spaced apart, the distance between each diverter hole 201 and the inflow hole 111 can be made the same, which helps to ensure the flow of the mixed refrigerant from the outflow hole 3011 to the diverter hole 201. Furthermore, by limiting the plurality of diverter holes 201 to be arranged around the inflow hole 111, the flow of the mixed refrigerant from the outflow hole 3011 to the diverter hole 201 can be effectively improved in conjunction with the plurality of diverter holes 201.

[0063] It should be understood that, in the present embodiment, the distributor 100 includes a shell 10 and a plate 20, wherein the shell 10 is a semi-spherical structure, and the interior of the shell 10 defines a diverter chamber. In the present embodiment, the diverter chamber includes an expansion chamber 103 and a mounting chamber, and an inflow hole 111 and a mounting chamber are respectively provided at both ends of the expansion chamber 103. From the direction of the inflow hole 111 facing the mounting chamber, that is, the flow direction of the refrigerant, the inner diameter of the expansion chamber 103 gradually increases. At this time, the minimum inner diameter of the expansion chamber 103 is the same as the aperture of the inflow hole 111, and the maximum inner diameter of the expansion chamber 103 is the same as the aperture of the mounting chamber. The mounting chamber is connected to the outside and forms an opening of the diverter chamber. The refrigerant entering the expansion chamber 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 chamber 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.

[0064] 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.

[0065] It should be further understood that the plate body 20 is a circular plate-shaped structure, and the plate body 20 is suitable for being set in the installation cavity, and 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 provided 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, and each diversion hole 201 is connected to a corresponding first connecting pipe 200, so as to play a role in regulating flow distribution, and the diversion hole 201 is concentrically arranged with the first connecting pipe 200. 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, and cooperating 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.

[0066] In this embodiment, the plate body 20 includes a first plate body 21 and a second plate body 22 connected to each other. A plurality of diverter holes 201 are defined in the first plate body 21, and a plurality of insertion holes 202 are defined in the second plate body 22. The plurality of diverter holes 201 are connected to the plurality of insertion holes 202 in a one-to-one correspondence. The first plate body 21 and the second plate body 22 cooperate to form a countersunk structure, into which one end of the first connecting tube 200 is inserted. The connection between the first connecting tube 200 and the second plate body 22 is achieved by welding, thereby securing the first connecting tube 200 to the housing 10.

[0067] It should be understood that the first connecting tube 200 is a rigid component, with one end of the first connecting tube 200 housed in the countersunk structure. Multiple first connecting tubes 200 extend along different preset paths. By configuring the tube body as a rigid component, the first connecting tube 200 is facilitated to connect with the plug-in portion, facilitating subsequent welding and securing. This effectively prevents the first connecting tube 200 from springing back after being plugged into the heat exchanger. The first connecting tube 200 has a simple overall structure and is easily processed and formed, which helps reduce manufacturing costs. It also reduces the overall dimensions of the distributor 100, minimizing the structural space required, saving design space, and achieving a lightweight design.

[0068] In this embodiment, the outer diameter of the first connecting tube 200 is the same as the inner diameter of the insertion hole 202, which helps ensure the sealing of the connection between the first connecting tube 200 and the distributor 100. At the same time, the inner diameter of the first connecting tube 200 is larger than the outer diameter of the diverter hole 201. By limiting the diameter of the diverter hole 201 to be 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 increase in flow space, thereby helping to improve the refrigerant mixing effect.

[0069] like Figure 4As 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 closed by the plate body 20. Such a setting can make it unnecessary to set a diverter cone in the distributor 100, which helps to simplify the structure of the distributor 100, improve the assembly effect of the diverter component 1000, and can also effectively solve the problem of poor alignment between the diverter cone and the inflow hole 111.

[0070] like Figure 5 As shown, in some other embodiments of the present application, the second connecting tube 300 further includes a cover 30101, which is connected to the insertion section 30121. The second end of the insertion section 30121 is sealed by the cover 30101. In this case, the cover 30101 is spaced apart from the plate 20. The provision of the cover 30101 ensures that the second end of the insertion section 30121 is in a closed state. By limiting the spacing between the cover 30101 and the plate 20, sufficient space is provided between the cover 30101 and the plate 20 for installing the spoiler 50 or other components described below, thereby reducing interference between the components.

[0071] At this point, it should be noted that when the cover body 30101 and the plate body 20 are spaced apart, 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.

[0072] It should be further understood that there is a first distance between the outflow hole 3011 and the second end of the insertion section 30121. In this case, the first distance is 0.5 to 3 times the inner diameter of the insertion section 30121. By limiting the distance between the outflow hole 3011 and the second end of the insertion section 30121, it helps to ensure that the refrigerant has a better flow space after entering the expansion cavity 103 from the outflow hole 3011.

[0073] At the same time, the plurality of outflow holes 3011 are arranged at equal intervals along the circumference of the insertion section 30121, and the number of the outflow holes 3011 is greater than or equal to the number of the diversion holes 201, which helps to ensure the flow effect of the high-temperature refrigerant in the distributor 100. Optionally, the number of the outflow holes 3011 is the same as the number of the diversion holes 201.

[0074] In addition, the cover 30101 may be configured as a plate-like structure or an axially symmetrical structure such as a cone, a hemispherical structure or an arc structure. Figure 6 As shown, when the cover 30101 is configured as a cone, the smaller diameter end of the cone faces toward the plate 20, and the interior of the cone is hollowed out and communicates with the interior of the insertion section 30121. Alternatively, the smaller diameter end of the cone can be configured away from the plate 20, i.e., the smaller diameter end of the cone is located within the insertion section 30121.

[0075] like Figure 7 As shown, when the cover 30101 is configured as an arcuate structure, the arcuate surface of the cover 30101 protrudes toward the plate 20. At this point, the interior of the cover 30101 is hollowed out and communicates with the interior of the insertion section 30121. Accordingly, the arcuate surface of the cover 30101 can also protrude away from the plate 20. Providing the cover 30101 with an axially symmetrical structure helps further ensure the flow of refrigerant within the expansion chamber 103.

[0076] In addition, it is important to understand that Figure 6 and Figure 7 As shown, in addition to being arranged in one row, the outflow holes 3011 can also be arranged in multiple rows in a vertical manner, and the number of outflow holes 3011 in each row can be the same or different. No further restrictions are imposed here, and simulation design can be performed according to actual conditions to determine the number and arrangement of the outflow holes 3011.

[0077] Furthermore, the distributor 100 further includes a spoiler 50, which is disposed within the expansion chamber 103 and between the plurality of outflow holes 3011 and the plurality of diverter holes 201. The provision of the spoiler 50 within the expansion chamber 103 effectively improves the uniformity of diversion within the expansion chamber 103, thereby further enhancing the mixing effect of the refrigerant and helping to optimize the diversion effect of the distributor 100. Furthermore, the provision of the spoiler 50 can also adjust the flow direction of the refrigerant, thereby reducing noise and further improving the performance of the distributor 100. Optionally, the spoiler 50 is configured as a mesh structure, which is disposed on the distributor 100 and covers the second end of the insertion section 30121.

[0078] like Figure 4 As shown, in some embodiments of the present application, the spoiler 50 is a mesh structure and is connected to the side of the plate body 20 facing the expansion chamber 103. In this case, the mesh structure is configured in a spherical crown shape and protrudes toward the side of the inflow hole 111, thereby dividing the expansion chamber 103 into two distinct flow chambers. Simultaneously, the second end of the insertion section 30121 passes through the mesh structure and abuts against the plate body 20, ensuring that the mesh structure is positioned between the outflow hole 3011 and the diversion hole 201. Optionally, the mesh structure and the plate body 20 are connected by welding.

[0079] In some other embodiments of the present application, such as Figure 5 As shown, the spoiler 50 is a mesh structure and is connected to the housing 10. In this case, the mesh structure is configured in a spherical crown shape. The mesh structure is disposed within the expansion chamber 103 and protrudes toward one side of the diversion hole 201, thereby dividing the expansion chamber 103 into two different flow chambers. Optionally, the mesh structure and the housing 10 are connected together by welding.

[0080] In some other embodiments of the present application, the spoiler 50 is configured as a mesh structure, which is disposed on the insertion section 30121 and accommodates the second end of the insertion section 30121. In this case, the mesh structure is configured as a spherical bottom, disposed within the expansion cavity 103, and the second end of the insertion section 30121 is accommodated within the mesh structure and spaced apart from the mesh structure.

[0081] It should be noted that the structure of the spoiler 50 includes but is not limited to the above structure, such as configuring the spoiler 50 to be a plate-shaped structure and providing a plurality of spoiler holes on the spoiler 50 .

[0082] 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.

[0083] 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.

[0084] 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.

[0085] 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.

[0086] Furthermore, a reducing structure 3012 is provided at one end of the second connecting tube 300. Along the direction from the second connecting tube 300 to the distributor 100, the reducing structure 3012 is sequentially provided with an incident section 3013, a reducing section 30122 and an insertion section 30121, and the inner diameter of the incident section 3013 is larger than the inner diameter of the insertion section 30121.

[0087] Specifically, by defining the second connecting tube 300 with a reduced diameter structure 3012, which includes an insertion section 30121, the flow rate of the refrigerant entering the insertion section 30121 can be effectively increased, thereby further improving the refrigerant mixing effect in conjunction with the blind-leg output end. Furthermore, the provision of the reduced diameter structure 3012 can also coordinate with the housing 10 to determine the insertion depth of the insertion section 30121, thereby ensuring the accuracy of the assembly of the distributor 100.

[0088] It should be understood that the second connecting pipe 300 includes an inlet pipe 301. In this case, the inlet pipe 301 has an incident section 3013, a reduced diameter section 30122, and an insertion section 30121, which are arranged in sequence. The reduced diameter section 30122 is connected and arranged between the incident section 3013 and the insertion section 30121. In this case, the reduced diameter section 30122 is a transition section, and the inner diameter of the incident section 3013 is larger than the inner diameter of the insertion section 30121. Optionally, the inner diameter of the incident section 3013 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.

[0089] It should be further understood that the housing 10 is provided with a first inserting portion 11, which is adapted to connect with the second connecting tube 300. The provision of the first inserting portion 11 not only enables the first inserting portion 11 to cooperate with the second connecting tube 300, thereby achieving a connection between the housing 10 and the second connecting tube 300 and ensuring a proper assembly of the flow diverter assembly 1000, but also serves to limit or determine the insertion depth of the insertion section 30121. In this embodiment, the first inserting portion 11 is welded to the circumference of the second connecting tube 300.

[0090] Further, along the circumference of the inflow hole 111, the shell 10 extends along a first direction and forms a first plug-in portion 11, and the first direction is the direction in which the shell 10 faces the second connecting pipe 300, or, along the circumference of the inflow hole 111, the shell 10 extends along a second direction and forms a first plug-in portion 11, and the second direction is the direction in which the shell 10 faces away from the second connecting pipe 300.

[0091] Specifically, limiting the circumferential extension of the first inserting portion 11 along the inflow hole 111 helps improve the sealing performance of the connection between the housing 10 and the second connecting pipe 300, effectively preventing the refrigerant from flowing out of the expansion cavity 103 along the inflow hole 111, thereby improving the connection performance of the diverter assembly 1000. Furthermore, limiting the extension direction of the first inserting portion 11 allows it to mate with the reduced diameter section 30122 of the second connecting pipe 300, limiting the insertion depth of the insertion section 30121, and facilitating the accumulation of solder, thereby improving the reliability of the weld at the inflow hole 111.

[0092] It is important to understand that if Figure 4 and Figure 5 As shown, along the circumference of the inflow hole 111, the housing 10 extends in the direction facing the second connecting tube 300, forming a first inserting portion 11. At this point, the end of the first inserting portion 11 facing away from the inflow hole 111 is welded to the circumference of the second connecting tube 300. Simultaneously, the end of the first inserting 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, thereby ensuring accurate assembly of the flow diverter assembly 1000.

[0093] In addition, if Figure 6 and Figure 7 As shown, 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 connection 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.

[0094] The second aspect of the present invention also proposes a HVAC equipment 1, which includes a first heat exchanger 2000, a second heat exchanger 3000 and a diversion component 1000. The diversion component 1000 is the above-mentioned diversion component 1000, and at this time, the first connecting pipe 200 is connected to the first heat exchanger 2000, and the distributor 100 is connected to the second heat exchanger 3000.

[0095] 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.

[0096] 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, characterized in that: include: A distributor, the distributor comprising an inlet hole, an expansion cavity, and a plurality of diversion holes arranged in sequence, the inlet hole being connected to the plurality of diversion holes through the expansion cavity; a second connecting pipe connected to the distributor, the second connecting pipe having an insertion section, at least a portion of which passes through the inflow hole and extends into the interior of the expansion cavity; Along the direction from the inflow hole to the diversion hole, the first end of the insertion section is used for the inflow of refrigerant, the second end of the insertion section is in a closed state and is located inside the expansion cavity, and a plurality of outflow holes are provided along the circumference of the insertion section. The plurality of outflow holes are located inside the expansion cavity and are spaced apart from the second end of the insertion section.

2. The flow diversion assembly according to claim 1, characterized in that: The distributor includes a plate body, and the plate body and the inflow hole are respectively arranged on opposite sides of the expansion cavity. A plurality of diversion holes are arranged on the plate body, and the plurality of diversion holes are arranged around the inflow hole as the center.

3. The flow diversion assembly according to claim 2, characterized in that: The second end of the insertion section is connected to the plate body, and the second end of the insertion section is closed by the plate body.

4. The flow diversion assembly according to claim 2, characterized in that: The second connecting tube further includes a cover body, which is connected to the insertion section, and the second end of the insertion section is closed by the cover body.

5. The flow diversion assembly according to any one of claims 1 to 4, characterized in that: The dispenser further comprises: A spoiler is disposed inside the expansion cavity and between the plurality of outflow holes and the plurality of diversion holes.

6. The flow diversion assembly according to claim 5, characterized in that: The spoiler is configured as a mesh structure, which is provided on the dispenser and covers the second end of the insertion section; Alternatively, the spoiler is configured as a mesh structure, and the mesh structure is provided on the insertion segment and accommodates the second end of the insertion segment.

7. The flow diversion assembly according to any one of claims 1 to 4, characterized in that: The insertion section has a diameter-reducing portion, and the diameter-reducing portion is located between the first end of the insertion section and the outflow hole.

8. The flow diversion assembly according to claim 7, characterized in that: Along the direction from the inflow hole to the diversion hole, the inner diameter of the diameter-changing portion first decreases and then increases.

9. The flow diversion assembly according to any one of claims 1 to 4, characterized in that: One end of the second connecting pipe is provided with a reducing structure. Along the direction from the second connecting pipe to the distributor, the reducing structure is composed of a reducing section and an inserting section. The minimum inner diameter of the reducing section is the same as the inner diameter of the inserting section.

10. The flow diversion assembly according to any one of claims 1 to 4, characterized in that: The distributor includes a shell, the shell is provided with a first inserting portion, and the first inserting portion is adaptively connected to the second connecting pipe.

11. The flow diversion assembly according to claim 10, characterized in that: Along the circumference of the inflow hole, the housing is extended in a first direction to form the first insertion portion, and the first direction is a direction in which the housing faces the second connecting pipe; Alternatively, along the circumference of the inflow hole, the shell is extended in a second direction to form the first inserting portion, and the second direction is a direction in which the shell is away from the second connecting pipe.

12. A HVAC equipment, characterized in that: The HVAC equipment includes the flow diversion assembly according to any one of claims 1 to 11.

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