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 inserting part and a second connecting 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, and the shunting holes are used for connecting a first connecting pipe. The first inserting part is installed on the distributor and provided with a transition hole communicating with the inflow hole, the second connecting pipe comprises a diverging section and a first communicating section which are coaxially connected, the large-diameter end of the diverging section is arranged on the first inserting part in a sleeving mode and communicates with the transition hole, and the first inserting part and the first communicating section are arranged in a spaced mode in the axial direction of the second connecting pipe; therefore, an expansion groove is formed between the divergent section between the first plug-in mounting part and the first communication section and the first plug-in mounting part. The refrigerant entering the second connecting pipe impacts into the expansion groove, so that the non-uniform refrigerant collides with the groove wall of the expansion groove to generate vortex to intensify the instability of the refrigerant, the refrigerant is promoted to be dispersed, and the effect of preliminary mixing of the refrigerant before flow division is achieved.

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 inlet of the diversion component of the existing HVAC equipment lacks the function of refrigerant mixing, resulting in uneven distribution and biased flow of the refrigerant. Utility Model Content

[0004] The purpose of the present invention is to at least solve the problem of uneven refrigerant distribution and biased flow 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 inflow hole and a plurality of diversion holes, wherein the plurality of diversion holes are communicated with the inflow hole, and the diversion holes are used to connect to the first connecting pipe;

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

[0008] The second connecting pipe includes a gradually expanding section and a first connecting section. The small diameter end of the gradually expanding section is coaxially connected to the first connecting section, and the inner diameter of the gradually expanding section is larger than the inner diameter of the first connecting section. The large diameter end of the gradually expanding section is sleeved on the first inserting portion and connected to the transition hole. Along the axial direction of the second connecting pipe, the first inserting portion and the first connecting section are spaced apart so that an expansion groove is formed between the gradually expanding section and the first inserting portion located between the first inserting portion and the first connecting section.

[0009] The diversion assembly proposed in the first aspect of the present invention is sleeved on the first plug-in part through the gradually expanding section of the second connecting pipe and is connected to the distributor. An expansion groove is defined between the gradually expanding section and the first plug-in part. The refrigerant entering the second connecting pipe 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, promoting the dispersion of the refrigerant, and playing the role of preliminary mixing of the refrigerant before diversion.

[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 expansion groove is arranged around the axial direction of the second connecting pipe.

[0012] In some embodiments of the present invention, along the flow direction of the liquid in the second connecting pipe, the length of the expansion groove in the radial direction of the second connecting pipe gradually increases.

[0013] In some embodiments of the present invention, the second connecting pipe further includes a second connecting section, which is coaxially connected to an end of the first connecting section away from the gradually expanding section, and the inner diameter of the second connecting section is larger than the inner diameter of the first connecting section.

[0014] In some embodiments of the present invention, the angle between the inner wall of the gradually expanding section between the first insertion portion and the first connecting section and the axial direction of the gradually expanding section ranges from 50° to 70°.

[0015] The second aspect of the present invention provides a flow diversion assembly, comprising:

[0016] a distributor having an inflow hole and a plurality of diversion holes, wherein the plurality of diversion holes are communicated with the inflow hole, and the diversion holes are used to connect to the first connecting pipe;

[0017] A second connecting tube, one end of the second connecting tube is connected to the inflow hole, the other end of the second connecting tube is used for fluid inflow, the inner wall of the second connecting tube is partially recessed to form an expansion groove, and the expansion groove has a first wall surface arranged at an angle to the axial direction of the second connecting tube.

[0018] The second aspect of the present invention proposes a diversion component that sets an expansion groove in the second connecting pipe upstream of the distributor. The refrigerant entering the second connecting pipe 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.

[0019] In some embodiments of the present invention, the expansion groove is arranged around the axial direction of the second connecting pipe.

[0020] In some embodiments of the present invention, along the flow direction of the liquid in the second connecting pipe, the length of the expansion groove in the radial direction of the second connecting pipe gradually increases.

[0021] In some embodiments of the present invention, along the axial direction of the second connecting tube, the cross-section of the expansion groove is V-shaped, the first wall is arranged around the axial direction of the second connecting tube, and the angle between the first wall and the axial direction of the second connecting tube ranges from 50° to 70°. The expansion groove also has a second wall, the second wall is arranged around the axial direction of the second connecting tube, the outer peripheral side of the second wall is connected to the outer peripheral side of the first wall, and the second wall is parallel to the radial direction of the second connecting tube.

[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 sets an expansion groove at the inlet end of the diversion component. The refrigerant entering the diversion component 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.

[0024] In some embodiments of the present invention, the dispenser comprises:

[0025] The shell defines an expansion cavity therein, the expansion cavity has an open opening, the inflow hole is provided on the shell and communicates with the expansion cavity, and the second connecting pipe communicates with the expansion cavity;

[0026] The first plate body is connected to the shell and is arranged at the opening. The diversion hole is arranged on the first plate body and is communicated with the expansion cavity.

[0027] 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 of the diverter cone is arranged toward the inflow hole, and the multiple diverter holes are arranged at intervals along the circumferential direction of the diverter cone. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] 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:

[0029] Figure 1 The figure schematically shows the assembly structure of the flow diversion assembly and the flow diversion pipe according to the embodiment of the present utility model;

[0030] Figure 2 Schematically shows a cross-sectional structural diagram of a flow diversion assembly according to an embodiment of the present utility model;

[0031] Figure 3 Schematically shows a structural diagram of a second connecting pipe according to an embodiment of the present utility model;

[0032] Figure 4 Schematically shows a structural diagram of a dispenser according to an embodiment of the present utility model;

[0033] The reference numerals are as follows:

[0034] 1000, diversion component;

[0035] 100. Distributor;

[0036] 10. Housing; 111. Inflow hole; 103. Expansion cavity; 11. First insertion portion;

[0037] 20. Plate; 21. First plate; 211. Diversion hole; 22. Second plate; 221. Insertion hole;

[0038] 200, first connecting pipe;

[0039] 300, second connecting pipe; 301, gradually expanding section; 302, first connecting section; 303, second connecting section; 304, expansion groove; 3041, first groove wall; 3042, second groove wall;

[0040] 30. Diverter cone. DETAILED DESCRIPTION

[0041] 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.

[0042] 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.

[0043] 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.

[0044] 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.

[0045] like Figures 1 to 4 As shown, Figure 2 A in the middle represents the axial direction of the inflow cavity. The first aspect of the present invention proposes a flow diversion assembly 1000, including a distributor 100, a first plug-in portion 11 and a second connecting pipe 300. The distributor 100 has an inflow hole 111 and a plurality of diversion holes 211. The plurality of diversion holes 211 are connected to the inflow hole 111. The first plug-in portion 11 is installed on the distributor 100. The first plug-in portion 11 has a transition hole connected to the inflow hole 111. The second connecting pipe 300 includes a gradually expanding section 301 and a first The connecting section 302 and the gradually expanding section 301 have a small diameter end that is coaxially connected to the first connecting section 302, and the inner diameter of the gradually expanding section 301 is larger than the inner diameter of the first connecting section 302. The large diameter end of the gradually expanding section 301 is sleeved on the first inserting portion 11 and is connected to the transition hole. Along the axial direction of the second connecting tube 300, the first inserting portion 11 and the first connecting section 302 are spaced apart so that an expansion groove 304 is formed between the gradually expanding section 301 and the first inserting portion 11 located between the first inserting portion 11 and the first connecting section 302.

[0046] It can be understood that the distributor 100 has a structure with an expansion cavity 103 formed inside. The distributor 100 also has an inflow hole 111 and multiple diversion holes 211. The second connecting tube 300 is connected to the expansion cavity 103 through the inflow hole 111. The diversion hole 211 is used to connect the diversion tube. One end of the second connecting tube 300 forms a gradually expanding section 301 with a larger diameter. The diameter of the gradually expanding section 301 gradually expands along the flow direction, and the diameter of the gradually expanding section 301 is larger than the diameter of the first connecting section 302, which facilitates the plug-in connection of the first plug-in part 11. The first inserting portion 11 can be cylindrical and coaxially arranged with the distributor 100 and the second connecting tube 300. One end of the first inserting portion 11 can be connected to the housing 10 by welding or integral molding, and communicates with the inflow hole 111 at one end of the housing 10. The other end of the first inserting portion 11 is inserted into the large-diameter end of the gradually expanding section 301, and the end surface of the first inserting portion 11 and the inner wall of the gradually expanding section 301 form a V-shaped expansion groove 304. Specifically, the first inserting portion 11 can be formed by stamping or bending a portion at the opening of one end of the housing 10. The first inserting portion 11 and the second connecting tube 300 can be connected by interference fit or welding.

[0047] The diversion assembly 1000 proposed in the first aspect of the present invention is sleeved on the first plug-in part 11 through the gradually expanding section 301 of the second connecting tube 300, and is connected to the distributor 100. An expansion groove 304 is defined between the gradually expanding section 301 and the first plug-in part 11. The refrigerant entering the second connecting tube 300 impacts the expansion groove 304, so that the uneven refrigerant generates eddy currents after colliding with the groove wall of the expansion groove 304, aggravating the instability of the refrigerant, promoting the dispersion of the refrigerant, and playing the role of preliminary mixing of the refrigerant before diversion.

[0048] In some embodiments of the present invention, the inflow cavity is a rotating body structure, and the depth direction of the expansion groove 304 is set at an angle to the axial direction of the inflow cavity.

[0049] It is understood that the inflow cavity can be a structure similar to a cylindrical body of rotation, and the depth direction of the expansion groove 304 refers to the direction from the notch of the expansion groove 304 to the inside of the expansion groove 304. The depth direction of the expansion groove 304 is at a certain angle to the axial direction of the inflow cavity, that is, the depth direction of the expansion groove 304 is at a certain angle to the refrigerant flow direction of the inflow cavity, thereby allowing the refrigerant to impact the sidewalls of the expansion groove 304, thereby being guided by the sidewalls, so that the refrigerant at the expansion groove 304 flows in different directions, thereby further mixing and improving the uniformity of the refrigerant. Specifically, the depth direction of the expansion groove 304 can be set perpendicular to the axial direction of the inflow cavity, so that the angle between the refrigerant flow direction and the sidewalls of the expansion groove 304 is close to perpendicular, thereby aggravating and improving the flow instability of the refrigerant, thereby further mixing the refrigerant and improving the uniformity of the refrigerant.

[0050] In some embodiments of the present invention, the expansion groove 304 is disposed around the axial direction of the second connecting tube 300 .

[0051] It is understood that the expansion groove 304 can extend 360° along the circumferential direction of the inflow cavity, such that the expansion groove 304 is arranged in the axial direction of the second connecting tube 300. That is, the expansion groove 304 has an annular structure, allowing the refrigerant to collide with the expansion groove 304 at more locations, thereby further mixing more refrigerant and improving the uniformity of the refrigerant before diversion. Specifically, without affecting the flow resistance, multiple expansion grooves 304 can be provided at intervals along the refrigerant flow direction to further expand the contact area between the refrigerant and the expansion groove 304, thereby achieving a better refrigerant mixing effect.

[0052] In some embodiments of the present invention, along the flow direction of the liquid flowing into the cavity, the length of the expansion groove 304 along the radial direction of the second connecting pipe 300 gradually increases.

[0053] It is understandable that the cross-section of the expansion groove 304 along the flow direction of the liquid in the inflow cavity can be triangular, fan-shaped or semicircular. For example, the cross-section of the expansion groove 304 is triangular, and the expansion groove 304 is composed of a first side wall parallel to the radial direction of the inflow cavity, and a second side wall at an angle to the radial direction, and the first side wall is located downstream of the second side wall. The depth of the expansion groove 304 gradually increases along the flow direction of the liquid in the inflow cavity. Under this structure, the expansion groove 304 has a side wall that is nearly perpendicular to the flow direction of the refrigerant, thereby allowing the refrigerant to impact the side wall of the expansion groove 304. Since the impact angle is close to vertical, the collision force is greater, and the refrigerant is dispersed and mixed under the collision, thereby improving the uniformity of the refrigerant before diversion.

[0054] In some embodiments of the present invention, the second connecting pipe 300 further includes a second connecting section 303 , which is coaxially connected to one end of the first connecting section 302 away from the gradually expanding section 301 , and the inner diameter of the second connecting section 303 is greater than the inner diameter of the first connecting section 302 .

[0055] It is understood that the flow area of ​​the second connecting section 303 is greater than the flow area of ​​the first connecting section 302 and the flow area of ​​the first inserting portion 11, and the flow area of ​​the expansion chamber 103 is also greater than the flow area of ​​the first connecting section 302 and the flow area of ​​the first inserting portion 11. This allows the flow diversion assembly 1000 to form a Venturi-type structure at the first connecting section 302 and the first inserting portion 11, thereby minimizing refrigerant flow losses and ensuring uniform flow diversion. Furthermore, the flow area of ​​the second connecting section 303 can be configured to gradually decrease, minimizing refrigerant flow losses there and improving diversion efficiency.

[0056] In some embodiments of the present invention, the angle between the inner wall of the gradually expanding section 301 between the first inserting portion 11 and the first connecting section 302 and the axial direction of the gradually expanding section 301 ranges from 50° to 70°.

[0057] It can be understood that the cross-section of the expansion groove 304 along the axis of the second connecting tube 300 is V-shaped, and the first connecting section 302 has a gradual expansion angle of about 60° (α in the figure) at the expansion groove 304, so that when the fluid flows through the expansion groove 304, the flow area gradually expands, causing the flow velocity to decrease and the pressure to increase. Moreover, due to the influence of viscosity, the flow velocity is low near the wall. When the angle between the first groove wall 3041 and the axis of the second connecting tube 300 is in the range of 60°, the degree of vortex is maximum, the fluid mixing is more intense here, and the mixing uniformity of the fluid here can be further improved.

[0058] The second aspect of the present invention provides a flow diversion assembly 1000, comprising:

[0059] The distributor 100 has an inlet hole 111 and a plurality of diversion holes 211 , wherein the plurality of diversion holes 211 are connected to the inlet hole 111 ;

[0060] The second connecting tube 300 has one end connected to the inflow hole 111, and the other end of the second connecting tube 300 is used for fluid inflow. The inner wall of the second connecting tube 300 is partially recessed to form an expansion groove 304, and the expansion groove 304 has a first wall surface arranged at an angle to the axial direction of the second connecting tube 300.

[0061] It can be understood that the distributor 100 has a structure with an expansion cavity 103 formed inside. The distributor 100 also has an inflow hole 111 and multiple diversion holes 211. The second connecting tube 300 is connected to the expansion cavity 103 through the inflow hole 111. The diversion hole 211 is used to connect the diversion tube. The second connecting tube 300 can be a cylindrical structure, such as a cylindrical structure or a structure in which multiple sections of cylinders with different diameters are connected in sequence. The interior of the second connecting tube 300 defines an inflow cavity with openings at both ends. One end of the second connecting tube 300 is connected to the inflow hole 111, and the two can be connected by snapping or welding. The other end of the second connecting tube 300 is used to connect to the incoming flow tube to introduce refrigerant. The inner wall of the second connecting tube 300 is partially recessed to form an expansion groove 304. The cross-section of the expansion groove 304 can be triangular, fan-shaped or other shapes. The expansion groove 304 can be arranged in a ring shape along the circumference of the inflow cavity, or multiple expansion grooves 304 can be arranged along the circumference of the inflow cavity. After entering the inflow cavity, the refrigerant can flow in different directions when passing through the expansion groove 304 due to collision with multiple groove walls in different directions of the expansion groove 304, thereby further mixing the refrigerant and improving the uniformity of the refrigerant before diversion.

[0062] In some embodiments of the present invention, the expansion groove 304 is disposed around the axial direction of the second connecting tube 300 .

[0063] It is understood that the expansion groove 304 can extend 360° along the circumferential direction of the inflow cavity, such that the expansion groove 304 is arranged in the axial direction of the second connecting tube 300. That is, the expansion groove 304 has an annular structure, allowing the refrigerant to collide with the expansion groove 304 at more locations, thereby further mixing more refrigerant and improving the uniformity of the refrigerant before diversion. Specifically, without affecting the flow resistance, multiple expansion grooves 304 can be provided at intervals along the refrigerant flow direction to further expand the contact area between the refrigerant and the expansion groove 304, thereby achieving a better refrigerant mixing effect.

[0064] In some embodiments of the present invention, along the flow direction of the liquid flowing into the cavity, the length of the expansion groove 304 along the radial direction of the second connecting pipe 300 gradually increases.

[0065] It is understandable that the cross-section of the expansion groove 304 along the flow direction of the liquid in the inflow cavity can be triangular, fan-shaped or semicircular. For example, the cross-section of the expansion groove 304 is triangular, and the expansion groove 304 is composed of a first side wall parallel to the radial direction of the inflow cavity, and a second side wall at an angle to the radial direction, and the first side wall is located downstream of the second side wall. The depth of the expansion groove 304 gradually increases along the flow direction of the liquid in the inflow cavity. Under this structure, the expansion groove 304 has a side wall that is nearly perpendicular to the flow direction of the refrigerant, thereby allowing the refrigerant to impact the side wall of the expansion groove 304. Since the impact angle is close to vertical, the collision force is greater, and the refrigerant is dispersed and mixed under the collision, thereby improving the uniformity of the refrigerant before diversion.

[0066] In some embodiments of the present invention, the cross-section of the expansion groove 304 is V-shaped along the axial direction of the second connecting tube 300, the first wall is arranged around the axial direction of the second connecting tube 300, and the angle between the first wall and the axial direction of the second connecting tube 300 ranges from 50° to 70°. The expansion groove 304 also has a second wall, which is arranged around the axial direction of the second connecting tube 300, the outer peripheral side of the second wall is connected to the outer peripheral side of the first wall, and the second wall is parallel to the radial direction of the second connecting tube 300.

[0067] It can be understood that the first groove wall 3041 and the second groove wall 3042 form an expansion groove 304 with a V-shaped cross-section, and the expansion groove 304 has a gradual expansion angle of about ° relative to the inflow cavity (α in the figure), so that when the fluid flows through the expansion groove 304, the flow area gradually expands, causing the flow velocity to decrease and the pressure to increase. Moreover, due to the influence of viscosity, the flow velocity is small near the wall surface. When the angle between the first groove wall 3041 and the axial direction of the inflow cavity is in the range of °, the vortex degree is the largest, the fluid mixing here is more intense, and the mixing uniformity of the fluid here can be further improved.

[0068] The second aspect of the present invention provides a HVAC device, including the diversion assembly 1000 provided in the first aspect of the present invention.

[0069] The HVAC equipment proposed in the second aspect of the present invention can be an air conditioner, and the diversion component 1000 can be used for diversion of the refrigerant of the air conditioner outdoor unit before entering the multiple heat exchange tubes of the heat exchanger. The present invention sets an expansion groove 304 at the inlet end of the diversion component 1000, so that the refrigerant entering the diversion component 1000 impacts the expansion groove 304, so that the uneven refrigerant generates eddy currents after colliding with the groove wall of the expansion groove 304, aggravating the instability of the refrigerant, promoting the dispersion of the refrigerant, and playing the role of preliminary mixing of the refrigerant.

[0070] In some embodiments of the present invention, the dispenser 100 includes a housing 10 and a plate 20. The housing 10 defines an expansion chamber 103 within its interior. The expansion chamber 103 is open. An inlet port 111 is provided on the housing 10 and communicates with the expansion chamber 103. The second connecting tube 300 communicates with the expansion chamber 103 through the inlet port 111. The plate 20 is provided at the open end. A diverter port 211 is provided on the plate 20 and communicates with the expansion chamber 103.

[0071] It can be understood that the shell 10 can be a rotating body structure, such as a truncated cone or a hemispherical shape. The two ends of the shell 10 are open, and a hemispherical expansion cavity 103 is defined inside. The plate 20 is adapted to the opening at one end of the shell 10 and is sealed on the opening. The plate 20 can be covered on the opening or embedded in the opening. A plurality of diversion holes 211 can be provided on the plate 20 to connect the diversion pipe. The diversion hole 211 can be circular or other regular polygons. The size of the diversion hole 211 can be different. The plate 20 can be composed of a first plate 21 with a certain thickness, so that the diversion pipe can The connection is achieved by plugging into the diversion hole 211, or the plate body 20 includes a first plate body 21 and a second plate body 22, and the second plate body 22 is arranged parallel to the side of the first plate body 21 away from the expansion cavity 103, and a plurality of insertion holes 221 coaxially arranged with the diversion hole 211 are formed on the second plate body 22. The diameter of the insertion hole 221 is larger than the diversion hole 211, so that the side wall of the diversion tube is connected to the hole wall of the insertion hole 221, and the end of the diversion tube is abutted against the bottom wall of the insertion hole 221, so that the diversion tube can be fixed at multiple angles and positions. The other end opening of the shell 10 is used to connect the second connecting pipe 300.

[0072] In some embodiments of the present invention, the diverter assembly 1000 also includes a diverter cone 30, the small diameter end of the diverter cone 30 is arranged in the expansion cavity 103, and the small diameter end of the diverter cone 30 is arranged toward the inflow cavity, and a plurality of diverter holes 211 are arranged at intervals along the circumferential direction of the diverter cone 30.

[0073] It is understood that in order to improve the uniformity of the 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 21, or the large diameter end of the diverter cone 30 can be welded or snap-connected to the side of the first plate 21 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 structure, so that after the diverter cone 30 is inserted into the mounting hole, the flange structure can overlap the step structure of the first plate 21 away from the expansion chamber 103, and then the flange structure is connected to the first plate 21 by welding, so that the connection between the diverter cone 30 and the first plate 21 is more reliable. In addition, the outer periphery of the flange structure 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.

[0074] 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 inflow hole and a plurality of diversion holes, wherein the plurality of diversion holes are communicated with the inflow hole, and the diversion holes are used to connect to the first connecting pipe; a first inserting portion, mounted on the distributor, wherein the first inserting portion has a transition hole communicating with the inflow hole; The second connecting pipe includes a gradually expanding section and a first connecting section. The small diameter end of the gradually expanding section is coaxially connected to the first connecting section, and the inner diameter of the gradually expanding section is larger than the inner diameter of the first connecting section. The large diameter end of the gradually expanding section is sleeved on the first inserting portion and connected to the transition hole. Along the axial direction of the second connecting pipe, the first inserting portion and the first connecting section are spaced apart so that an expansion groove is formed between the gradually expanding section and the first inserting portion located between the first inserting portion and the first connecting section.

2. The flow diversion assembly according to claim 1, characterized in that: The expansion groove is arranged around the axial direction of the second connecting pipe.

3. The flow diversion assembly according to claim 2, characterized in that: Along the flow direction of the liquid in the second connecting pipe, the length of the expansion groove in the radial direction of the second connecting pipe gradually increases.

4. The flow diversion assembly according to any one of claims 1 to 3, characterized in that: The second connecting pipe further includes a second communicating section, which is coaxially connected to an end of the first communicating section away from the gradually expanding section, and an inner diameter of the second communicating section is greater than an inner diameter of the first communicating section.

5. The flow diversion assembly according to any one of claims 1 to 3, characterized in that: An included angle between a portion of the inner wall of the gradually expanding section between the first inserting portion and the first connecting section and the axial direction of the gradually expanding section ranges from 50° to 70°.

6. A diversion component, characterized in that: include: a distributor having an inflow hole and a plurality of diversion holes, wherein the plurality of diversion holes are communicated with the inflow hole, and the diversion holes are used to connect to the first connecting pipe; A second connecting tube, one end of the second connecting tube is connected to the inflow hole, the other end of the second connecting tube is used for fluid inflow, the inner wall of the second connecting tube is partially recessed to form an expansion groove, and the expansion groove has a first wall surface arranged at an angle to the axial direction of the second connecting tube.

7. The flow diversion assembly according to claim 6, characterized in that: The expansion groove is arranged around the axial direction of the second connecting pipe.

8. The flow diversion assembly according to claim 7, characterized in that: Along the flow direction of the liquid in the second connecting pipe, the length of the expansion groove in the radial direction of the second connecting pipe gradually increases.

9. The flow diversion assembly according to claim 8, characterized in that: Along the axial direction of the second connecting tube, the cross-section of the expansion groove is V-shaped, the first wall surface is arranged around the axial direction of the second connecting tube, and the angle between the first wall surface and the axial direction of the second connecting tube ranges from 50° to 70°. The expansion groove further has a second wall surface, which is arranged around the axial direction of the second connecting tube, the outer peripheral side of the second wall surface is connected to the outer peripheral side of the first wall surface, and the second wall surface is parallel to the radial direction of the second connecting tube.

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

11. The HVAC equipment according to claim 10, characterized in that: The dispenser comprises: The shell defines an expansion cavity therein, the expansion cavity has an open opening, the inflow hole is provided on the shell and communicates with the expansion cavity, and the second connecting pipe communicates with the expansion cavity; The plate body is connected to the shell and is arranged at the opening. The diversion hole is arranged on the plate body and is communicated with the expansion cavity.

12. The HVAC equipment according to claim 11, 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 of the diverter cone is arranged toward the inflow hole, and the multiple diverter holes are arranged at intervals along the circumferential direction of the diverter cone.

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