Flow dividing assembly and heating and ventilation equipment

Abstract

The utility model provides a shunting assembly and heating and ventilation equipment, the shunting assembly comprises a distributor, a first plug-in mounting part and an inlet pipe, the distributor is provided with an inflow hole and a plurality of shunting holes, the plurality of shunting holes are communicated with the inflow hole, the first plug-in mounting part is installed on the distributor, and the first plug-in mounting part is provided with a transition hole communicated with the inflow hole; one end of the inlet pipe is connected with the end, away from the distributor, of the first inserting part, and a pipe cavity of the inlet pipe is in smooth transition with the transition hole. The inlet end of the flow dividing assembly is connected with the inlet pipe, the pipe wall of the inlet pipe is in smooth transition with the transition hole in the first inserting part, so that the connecting wall face is smooth, the flow resistance is small when fluid flows through the connecting wall face, and noise generated by flowing of the fluid can be reduced.

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] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0003] The refrigerant at the inlet of the diversion component of the existing HVAC equipment has the problem of biased flow. In particular, the refrigerant at the inlet of the diversion component is in a gas-liquid two-phase state. The liquid refrigerant has a high viscosity and tends to flow along the wall with a slow flow rate, while the gaseous refrigerant flows close to the center of the pipe diameter with a faster flow rate. The gaseous and liquid refrigerants cannot be fully mixed, resulting in large differences in the gas and liquid ratios of the refrigerant distributed to each inlet pipe and large differences in flow rate. Utility Model Content

[0004] The purpose of the present invention is to at least solve the problem of uneven refrigerant distribution at the inlet of the diversion assembly of existing HVAC equipment. This purpose is achieved through the following technical solutions:

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

[0006] a distributor having an inlet hole and a plurality of diversion holes, wherein the plurality of diversion holes are connected to the inlet hole;

[0007] a first inserting portion, mounted on the distributor, wherein the first inserting portion has a transition hole communicating with the inflow hole;

[0008] An inlet pipe, one end of which is connected to an end of the first inserting portion facing away from the distributor, and a lumen of the inlet pipe smoothly transitions to the transition hole.

[0009] The inlet end of the diversion assembly proposed in the first aspect of the present invention is connected to an inlet pipe, and the pipe wall of the inlet pipe smoothly transitions with the transition hole on the first plug-in part, so that the connecting wall surface there is smooth, and thus when the fluid flows through here, the flow resistance is small, which is conducive to reducing the noise generated by the fluid flow.

[0010] In addition, the diversion assembly according to the present invention may also have the following additional technical features:

[0011] In some embodiments of the present invention, the first inserting portion is a cylindrical structure, the wall thickness of the first inserting portion is consistent with the wall thickness of the inlet pipe, and the first inserting portion is butt-welded to the inlet pipe.

[0012] In some embodiments of the present invention, the hole wall at one end of the transition hole is partially recessed to form a first connecting groove. The first connecting groove is arranged around the axis of the transition hole and is connected to the end face of the first plug-in portion facing away from the distributor. One end of the inlet pipe is inserted into the first connecting groove.

[0013] In some embodiments of the present invention, the wall thickness of the end of the inlet pipe inserted into the first connecting groove is smaller than the wall thickness of the remaining portion of the inlet pipe.

[0014] In some embodiments of the present invention, the outer peripheral wall of one end of the inlet pipe is partially recessed to form a second connecting groove, the second connecting groove is arranged around the axis of the inlet pipe, and is connected to the end face of the inlet pipe facing the distributor, and the first insertion portion has an end of the first connecting groove that is sleeved on the inlet pipe and is located in the second connecting groove.

[0015] In some embodiments of the present invention, the first plug-in part is a cylindrical structure, the outer peripheral wall of one end of the first plug-in part is partially recessed to form a third connecting groove, the third connecting groove is connected to the end face of the first plug-in part facing away from the distributor, the inner wall of one end of the inlet pipe is partially recessed to form a fourth connecting groove, the fourth connecting groove is connected to the end face of the inlet pipe facing the distributor, the inlet pipe is sleeved on the first plug-in part, and the end of the inlet pipe provided with the fourth connecting groove is located in the third connecting groove, and the end of the first plug-in part provided with the third connecting groove is located in the fourth connecting groove.

[0016] In some embodiments of the present invention, the dispenser comprises:

[0017] A shell defines an expansion cavity therein, the expansion cavity having an open opening, the inlet hole being provided on the shell and communicating with the expansion cavity, and one end of the inlet pipe being connected to the shell;

[0018] The plate body is arranged at the opening and closes the opening. The plate body is provided with the diversion hole, the diversion hole is communicated with the expansion cavity, and the multiple diversion holes are arranged around the axis of the inflow hole.

[0019] In some embodiments of the present invention, the inner diameter of the end of the inlet pipe connected to the first inserting portion is smaller than the inner diameter of the remaining portion of the inlet pipe;

[0020] And / or, the expansion chamber is a rotating body structure, the diversion hole and the inflow hole are respectively located at the two ends of the expansion chamber along its own axis, and the diameter of the expansion chamber gradually increases from the end where the expansion chamber is connected to the inflow hole to the end where the expansion chamber is connected to the diversion hole.

[0021] In some embodiments of the present invention, the diverter assembly further includes a diverter cone, the small diameter end of the diverter cone is arranged in the expansion cavity, and the small diameter end is arranged toward the inflow hole, and the multiple diverter holes are arranged at intervals around the axis of the diverter cone.

[0022] The second aspect of the present invention provides a HVAC device, comprising the diversion assembly provided in the first aspect of the present invention.

[0023] The HVAC equipment proposed in the second aspect of the present invention has a low-noise diversion component. The inlet end of the diversion component is provided with an inlet pipe. The pipe wall of the inlet pipe smoothly transitions with the transition hole on the first plug-in part, making the connecting wall surface smooth, so that when the fluid flows through this place, the flow resistance is small, which is conducive to reducing the noise generated by the fluid flow. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0025] Figure 1 Schematically shows a schematic diagram of the assembly structure of the flow diversion component and the first connecting pipe according to an embodiment of the present utility model;

[0026] Figure 2 Schematically shows a cross-sectional view of a flow diversion assembly (first connecting groove) according to an embodiment of the present utility model;

[0027] Figure 3 Schematically shows the Figure 2 A schematic structural diagram of the inlet pipe in an embodiment of the present invention;

[0028] Figure 4 Schematically shows a cross-sectional structural diagram of a flow diversion assembly (a first connecting groove and a second connecting groove) according to an embodiment of the present utility model;

[0029] Figure 5 Schematically shows the Figure 2 and Figure 4 A schematic structural diagram of the housing in an embodiment of the present invention;

[0030] Figure 6 Schematically shows the Figure 4 A schematic structural diagram of the inlet pipe in an embodiment of the present invention;

[0031] Figure 7Schematically shows a cross-sectional structural diagram of the flow diversion assembly (third connecting groove and fourth connecting groove) according to an embodiment of the present utility model;

[0032] Figure 8 Schematically shows the Figure 7 A schematic structural diagram of the housing in an embodiment of the present invention;

[0033] Figure 9 Schematically shows the Figure 7 A schematic structural diagram of the inlet pipe in an embodiment of the present invention;

[0034] Figure 10 Schematically shows a structural diagram of a HVAC device according to an embodiment of the present utility model;

[0035] The reference numerals are as follows:

[0036] 1. HVAC equipment;

[0037] 1000, diversion assembly; 2000, first heat exchanger; 3000, second heat exchanger; 4000, compressor; 5000, refrigeration throttle valve; 6000, four-way valve;

[0038] 100, distributor; 200, first connecting pipe;

[0039] 10. Housing; 111. Inflow hole; 103. Expansion cavity; 11. First insertion portion; 112. Transition hole; 113. First connecting groove; 114. Third connecting groove;

[0040] 20. Plate body; 201. Diversion hole;

[0041] 30. Diverter cone;

[0042] 300, second connecting pipe;

[0043] 301, inlet pipe; 3017, second connecting groove; 3018, fourth connecting groove;

[0044] 302. Come to the flow pipe. DETAILED DESCRIPTION

[0045] 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.

[0046] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain" and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0047] 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.

[0048] For ease of description, spatially relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," and the like. Such spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "below" or "below" another element or feature would then be oriented as "above" or "above" another element or feature. Thus, the example term "below" can include both above and below orientations. The device may be otherwise oriented (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein are interpreted accordingly.

[0049] like Figures 1 to 10As shown, the first aspect of the present invention proposes a diversion assembly 1000, including a distributor 100, a first plug-in part 11 and an inlet pipe 301, the first plug-in part 11 has an inflow hole 111 and a plurality of diversion holes 201, and the plurality of diversion holes 201 are connected to the inflow hole 111; the first plug-in part 11 is installed on the distributor 100, and the first plug-in part 11 has a transition hole 112 connected to the inflow hole 111; one end of the inlet pipe 301 is connected to the end of the first plug-in part 11 away from the distributor 100, and the tube cavity of the inlet pipe 301 smoothly transitions to the transition hole 112.

[0050] It is understandable that the distributor 100 has an expansion cavity 103 formed therein. The distributor 100 also has an inlet hole 111 and a plurality of diversion holes 201 . The inlet pipe 301 is connected to the expansion cavity 103 through the inlet hole 111 .

[0051] The inlet end of the diversion component 1000 proposed in the first aspect of the present invention is connected to the inlet pipe 301, and the tube wall of the inlet pipe 301 smoothly transitions with the transition hole 112 on the first plug-in part 11, so that the connecting wall surface there is smooth, and thus when the fluid flows through here, the flow resistance is small, which is conducive to reducing the noise generated by the fluid flow.

[0052] In some embodiments of the present invention, the first inserting portion 11 is a cylindrical structure, the wall thickness of the first inserting portion 11 is consistent with the wall thickness of the inlet pipe 301 , and the first inserting portion 11 and the inlet pipe 301 are butt-welded.

[0053] It is understandable that the first inserting portion 11 can be set to a cylindrical shape, such as a straight cylinder or a tapered barrel, and one end of the first inserting portion 11 is connected to the outer surface of the distributor 100. The first inserting portion 11 can be connected to the distributor 100 by welding, so that the inflow hole 111 of the distributor 100 has a protruding portion to facilitate the connection of the inlet pipe 301 to the distributor 100. The wall thickness of the inlet pipe 301 is set to be consistent with the wall thickness of the first inserting portion 11, so that the two can be easily connected by butt welding, and after the connection, the inner wall of the inlet pipe 301 and the inner wall of the first inserting portion 11 have a smooth transition, and there is no protruding portion in the inner cavity, so that when the fluid flows through the connection between the inlet pipe 301 and the first inserting portion 11, the flow resistance is small and the noise generated is also small.

[0054] In some embodiments of the present invention, the hole wall at one end of the transition hole 112 is partially recessed to form a first connecting groove 113. The first connecting groove 113 is arranged around the axis of the transition hole 112 and is connected to the end face of the first plug-in portion 11 facing away from the distributor 100. One end of the inlet pipe 301 is inserted into the first connecting groove 113.

[0055] It can be understood that a first connecting groove 113 can be provided on the inner wall of one end of the first inserting portion 11 connected to the inlet pipe 301. The first connecting groove 113 is connected to the end face of the first inserting portion 11, so that the inlet pipe 301 can be inserted into the first connecting groove 113 along the axial direction. The first connecting groove 113 can be arranged in a ring shape. After the inlet pipe 301 is inserted into the first connecting groove 113, the joint is welded to make the connection more reliable. A chamfer can be provided on the end of the first connecting groove 113 away from the inlet pipe 301 to facilitate welding, so that the weld does not protrude from the hole wall of the transition hole 112, and the flow efficiency is improved.

[0056] In some embodiments of the present invention, the wall thickness of the end of the inlet pipe 301 inserted into the first connecting groove 113 is smaller than the wall thickness of the remaining portion of the inlet pipe 301 .

[0057] It is understood that the end of the inlet pipe 301 inserted into the first connecting groove 113 can be configured as a thinner tube. The wall thickness of this portion can be equal to the radial length of the first connecting groove 113 along the transition hole 112. This ensures that the inlet pipe 301 does not protrude from the transition hole 112 after being inserted into the first connecting groove 113, thereby reducing flow resistance and noise in this portion. Furthermore, the wall thickness of the remaining portion of the inlet pipe 301 can be thicker, which can increase structural strength and also help reduce noise.

[0058] In some embodiments of the present invention, the outer peripheral wall of one end of the inlet pipe 301 is partially recessed to form a second connecting groove 3017. The second connecting groove 3017 is arranged around the axis of the inlet pipe 301 and is connected to the end face of the inlet pipe 301 facing the distributor 100. The first plug-in portion 11 has an end of the first connecting groove 113 which is sleeved on the inlet pipe 301 and is located in the second connecting groove 3017.

[0059] It can be understood that a second connecting groove 3017 can be provided on the outer peripheral wall of one end of the inlet pipe 301. The second connecting groove 3017 can be provided in the form of an annular groove and connected to the end face of the inlet pipe 301. The second connecting groove 3017 reduces the wall thickness of the end of the inlet pipe 301 and can be inserted into the first connecting groove 113, so that the first plug-in portion 11 is sleeved on the inlet pipe 301. At this time, the end of the first plug-in portion 11 is located in the second connecting groove 3017, and then the joint is welded to make the connection more reliable. Chamfers can be provided at the end of the first connecting groove 113 away from the inlet pipe 301 and the end of the second connecting groove 3017 away from the first plug-in portion 11 to facilitate welding, so that the weld does not protrude from the hole wall of the transition hole 112 and the inner wall of the inlet pipe 301, thereby improving the flow efficiency and reducing the noise generated by the flow.

[0060] In some embodiments of the present invention, the first plug-in portion 11 has a cylindrical structure, and the outer peripheral wall of one end of the first plug-in portion 11 is partially recessed to form a third connecting groove 114, and the third connecting groove 114 is connected to the end face of the first plug-in portion 11 facing away from the distributor 100. The inner wall of one end of the inlet pipe 301 is partially recessed to form a fourth connecting groove 3018, and the fourth connecting groove 3018 is connected to the end face of the inlet pipe 301 facing the distributor 100. The inlet pipe 301 is sleeved on the first plug-in portion 11, and the end of the inlet pipe 301 provided with the fourth connecting groove 3018 is located in the third connecting groove 114, and the end of the first plug-in portion 11 provided with the third connecting groove 114 is located in the fourth connecting groove 3018.

[0061] It can be understood that a third connecting groove 114 can be provided on the outer peripheral wall of one end of the first plug-in part 11, and the third connecting groove 114 is connected to the end face of the first plug-in part 11, so that the inlet pipe 301 can be conveniently sleeved on the first plug-in part 11 and inserted into the third connecting groove 114. At the same time, a fourth connecting groove 3018 is provided on the inner peripheral wall of the inlet pipe 301, and the fourth connecting groove 3018 is connected to the end face of the inlet pipe 301, so that the first plug-in part 11 can be conveniently inserted into the inlet pipe 301 and fall into the fourth connecting groove 3018. The third connecting groove 114 and the fourth connecting groove 3018 can be achieved by removing a certain wall thickness of the first plug-in part 11 and the inlet pipe 301, specifically, half of the wall thickness can be removed. After the first insertion part 11 is inserted into the inlet pipe 301, chamfers can be set at the end of the third connecting groove 114 away from the first insertion part 11 and the end of the fourth connecting groove 3018 away from the inlet pipe 301 to facilitate welding, so that the weld does not protrude from the hole wall of the transition hole 112 and the inner wall of the inlet pipe 301, thereby improving flow efficiency and reducing noise generated by the flow.

[0062] In some embodiments of the present invention, the distributor 100 includes a shell 10 and a plate body 20. The shell 10 defines an expansion chamber 103 inside. The expansion chamber 103 has an opening. The inflow hole 111 is arranged on the shell 10 and is connected to the expansion chamber 103. One end of the incoming flow tube 302 is connected to the shell 10. The plate body 20 is arranged at the opening and closes the opening. The plate body 20 is provided with a diversion hole 201. The diversion hole 201 is connected to the expansion chamber 103, and multiple diversion holes 201 are arranged around the axis of the inflow hole 111.

[0063] It can be understood that the shell 10 can be a rotating body structure, such as a truncated cone or a hemispherical shape, with both ends of the shell 10 open, and a hemispherical expansion cavity 103 is defined inside. The plate body 20 may include a first plate body and a second plate body arranged in parallel, the first plate body is adapted to the opening at one end of the shell 10 and is sealed on the opening. The first plate body can be covered on the opening or embedded in the opening. A plurality of diverter holes 201 can be provided on the first plate body to connect the first connecting pipe 200. The diverter holes 201 can be circular or other regular polygons. The sizes of the diverter holes 201 can be different. The plate body can have a certain thickness so that the first connecting tube 200 can be inserted into the diverter hole 201 to achieve connection. Alternatively, a second plate body can be arranged parallel to the first plate body on the side facing away from the expansion chamber 103. The second plate body is formed with multiple insertion holes coaxially arranged with the diverter hole 201. The insertion holes have a larger diameter than the diverter hole 201, so that the side walls of the first connecting tube 200 are connected to the hole walls of the insertion holes, and the ends of the first connecting tube 200 abut against the bottom walls of the insertion holes, thereby achieving the fixation of the first connecting tube 200 at multiple angles and positions. The inlet hole 111 of the housing 10 is used to connect to the inlet pipe 301. The inlet pipe 301 can be inserted into the inlet hole 111 to achieve an interference fit, or it can be directly welded to the housing 10.

[0064] In some embodiments of the present invention, the inner diameter of the end of the inlet pipe connected to the first inserting portion is smaller than the inner diameter of the remaining portion of the inlet pipe;

[0065] And / or, the expansion cavity is a rotating body structure, the diversion hole and the inflow hole are respectively located at the two ends of the expansion cavity along its own axis, and the diameter of the expansion cavity gradually increases from the end where the expansion cavity is connected to the inflow hole to the end where the expansion cavity is connected to the diversion hole.

[0066] It can be understood that by making the inner diameter of one end of the inlet pipe connected to the first plug-in part smaller than the inner diameter of the remaining part, and cooperating with the gradually expanding structure of the expansion cavity, a throat structure can be formed at the inlet hole and the connection between the inlet pipe and the first plug-in part, so that the fluid is acted upon by the throat structure when flowing through this place, thereby increasing the flow rate, and the outflow direction of the inlet hole is aligned with the diverter cone and the center of the expansion cavity, so that the diverter cone in the fluid is evenly distributed, which helps to improve the diversion effect.

[0067] In some embodiments of the present invention, the diverter assembly 1000 further includes a diverter cone 30 , the small diameter end of the diverter cone 30 is disposed in the expansion cavity 103 , and the small diameter end is disposed toward the inflow hole 111 , and a plurality of diverter holes 201 are spaced apart in the axial direction around the diverter cone 30 .

[0068] It is understandable that in order to improve the uniformity of diversion, a diverter cone 30 can be set in the expansion chamber 103. The diverter cone 30 can be a cone or a pyramid. The large diameter end of the diverter cone 30 can be inserted into the mounting hole on the first plate, or the large diameter end of the diverter cone 30 can be welded or snap-connected to the side of the first plate facing the expansion chamber 103. The diverter cone 30 can be a stamped structure. The large diameter end of the diverter cone 30 can have a flange, so that after the diverter cone 30 is inserted into the mounting hole, the flange can overlap the step structure of the first plate away from the expansion chamber 103, and then the flange is connected to the first plate by welding, so that the connection between the diverter cone 30 and the first plate is more reliable. In addition, the outer periphery of the flange can also be connected to the wall of the mounting hole to improve the connection reliability. The profile of the diverter cone 30 can be arc-shaped, similar to the design of a submarine head, so that the flow resistance is smaller.

[0069] The second aspect of the present invention provides a HVAC device 1, comprising the flow diverter assembly 1000 of the first aspect of the present invention. The flow diverter assembly 1000 is connected to a first heat exchanger 2000 via a first connecting pipe 200, and is connected to a refrigeration throttle valve 5000 via a second connecting pipe 300. The second connecting pipe 300 includes an inlet pipe 301 and an inlet pipe 302, which are connected in sequence.

[0070] It is understandable that if Figure 10 As shown, the HVAC equipment 1 provided in the second aspect of the present invention can be an air conditioner. The HVAC equipment 1 includes the aforementioned diverter assembly 1000, a first heat exchanger 2000, a second heat exchanger 3000, a compressor 4000, a refrigeration throttle valve 5000, and a four-way valve 6000. After the refrigerant is diverted from the diverter assembly 1000, it flows to the first heat exchanger 2000. The first heat exchanger 2000 absorbs heat from the refrigerant, which then absorbs heat from the environment and evaporates. The evaporated refrigerant flows to the compressor 4000 for pressurization, and the pressurized refrigerant is then delivered to the four-way valve 6000. The four-way valve 6000 is used to adjust the flow direction of the refrigerant to switch between cooling and heating modes of the air conditioner. The diverter assembly 1000 can be used to divert the refrigerant from the air conditioner's outdoor unit before it enters the multiple heat exchange tubes of the first heat exchanger 2000.

[0071] 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 having an inlet hole and a plurality of diversion holes, wherein the plurality of diversion holes are connected to the inlet hole; a first inserting portion, mounted on the distributor, wherein the first inserting portion has a transition hole communicating with the inflow hole; An inlet pipe, one end of which is connected to an end of the first inserting portion facing away from the distributor, and a lumen of the inlet pipe smoothly transitions to the transition hole.

2. The flow diversion assembly according to claim 1, characterized in that: The first inserting portion is a cylindrical structure, the wall thickness of the first inserting portion is consistent with the wall thickness of the inlet pipe, and the first inserting portion is butt-welded to the inlet pipe.

3. The flow diversion assembly according to claim 1, characterized in that: A first connecting groove is opened on the hole wall at one end of the transition hole. The first connecting groove is arranged around the axis of the transition hole and is connected to the end face of the first insertion portion away from the distributor. One end of the inlet pipe is inserted into the first connecting groove.

4. The flow diversion assembly according to claim 3, characterized in that: The wall thickness of the end of the inlet pipe inserted into the first connecting groove is smaller than the wall thickness of the remaining portion of the inlet pipe.

5. The flow diversion assembly according to claim 3, characterized in that: A second connecting groove is formed on the outer wall of one end of the inlet pipe. The second connecting groove is arranged around the axis of the inlet pipe and is connected to the end face of the inlet pipe facing the distributor. The end of the first plug-in portion having the first connecting groove is sleeved on the inlet pipe and is located in the second connecting groove.

6. The flow diversion assembly according to claim 1, characterized in that: The first plug-in part has a cylindrical structure, and the outer peripheral wall of one end of the first plug-in part is partially recessed to form a third connecting groove, and the third connecting groove is connected to the end face of the first plug-in part facing away from the distributor. The inner wall of one end of the inlet pipe is partially recessed to form a fourth connecting groove, and the fourth connecting groove is connected to the end face of the inlet pipe facing the distributor. The inlet pipe is sleeved on the first plug-in part, and the end of the inlet pipe provided with the fourth connecting groove is located in the third connecting groove, and the end of the first plug-in part provided with the third connecting groove is located in the fourth connecting groove.

7. The flow diversion assembly according to any one of claims 1 to 6, characterized in that: The dispenser comprises: A shell defines an expansion cavity therein, the expansion cavity having an open opening, the inlet hole being provided on the shell and communicating with the expansion cavity, and one end of the inlet pipe being connected to the shell; The plate body is arranged at the opening and closes the opening. The plate body is provided with the diversion hole, the diversion hole is communicated with the expansion cavity, and the multiple diversion holes are arranged around the axis of the inflow hole.

8. The flow diversion assembly according to claim 7, characterized in that: The inner diameter of the end of the inlet pipe connected to the first inserting portion is smaller than the inner diameter of the remaining portion of the inlet pipe; And / or, the expansion chamber is a rotating body structure, the diversion hole and the inflow hole are respectively located at the two ends of the expansion chamber along its own axis, and the diameter of the expansion chamber gradually increases from the end where the expansion chamber is connected to the inflow hole to the end where the expansion chamber is connected to the diversion hole.

9. The flow diversion assembly according to claim 7, characterized in that: The diverter assembly further includes a diverter cone, the small diameter end of the diverter cone is arranged in the expansion cavity, and the small diameter end is arranged toward the inflow hole, and the multiple diverter holes are arranged at intervals around the axis of the diverter cone.

10. A heating and ventilation equipment, characterized in that: Comprising the diversion assembly according to any one of claims 1 to 9.

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