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 and a first connecting pipe, the first connecting pipe is provided with an inflow hole and a plurality of shunting holes, the inflow hole is communicated with the shunting holes, one end of the first connecting pipe is connected with the distributor and is communicated with the shunting holes, and the first connecting pipe comprises an adjusting pipe section and a circulating pipe section; the circulation pipe section is communicated with the adjusting pipe section, and the circulation area of the adjusting pipe section is smaller than that of the circulation pipe section. The flow adjusting function is achieved through the adjusting pipe section of the first connecting pipe, the flow area of the adjusting pipe section can be preset to achieve the flow adjusting function of fluid, the first connecting pipe is fixed through the flow dividing holes in the plate body and communicated with the expansion cavity in the shell, and an original flow dividing hole plate responsible for flow dividing and flow adjusting can be omitted; the structure is more compact, the production cost is reduced, and installation is convenient.

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 existing heat exchanger's diversion assembly requires a complex diversion orifice plate to achieve diversion and flow control in each flow channel. The diversion orifice plate has a complex structure and high production cost. It also requires a cover plate to fix the first connecting pipe, and installation is also inconvenient. Utility Model Content

[0004] The purpose of this utility model is to at least solve the problem of complex structure and high cost of the diversion components 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 inlet hole is in communication with the diversion holes;

[0007] A first connecting pipe, one end of which is connected to the distributor and communicated with the diversion hole, the first connecting pipe includes a regulating pipe section and a flow pipe section, the flow pipe section is communicated with the regulating pipe section, and the flow area of ​​the regulating pipe section is smaller than the flow area of ​​the flow pipe section.

[0008] The diversion assembly proposed in the first aspect of the present invention realizes the flow regulation function through the regulating pipe section of the first connecting pipe. The flow area of ​​the regulating pipe section can be pre-set to assume the flow regulation function of the fluid. The first connecting pipe is fixed through the diversion hole on the distributor and is connected to the distributor. The original diversion orifice plate responsible for diversion and flow regulation can be eliminated, making the structure more compact, reducing production costs and facilitating installation.

[0009] In addition, the diversion assembly according to the present invention may also have the following additional technical features:

[0010] In some embodiments of the present invention, one end of the first connecting pipe connected to the distributor is inserted into the diversion hole.

[0011] In some embodiments of the present invention, the outer diameter of the regulating pipe section is smaller than the outer diameter of the circulation pipe section, and the inner diameter of the regulating pipe section is smaller than the inner diameter of the circulation pipe section.

[0012] In some embodiments of the present invention, at least a portion of the regulating pipe section is inserted into the diversion hole, and along the flow direction of the first connecting pipe, the flow pipe section is located downstream of the regulating pipe section.

[0013] In some embodiments of the present invention, the circulation pipe section includes a first pipe section and a second pipe section, at least a portion of the first pipe section is inserted into the diversion hole, and along the flow direction of the first connecting pipe, the second pipe section is located downstream of the first pipe section, and the second pipe section is connected to the first pipe section through the regulating pipe section.

[0014] In some embodiments of the present invention, the ratio of the axial length of the adjusting tube segment to the inner diameter of the adjusting tube segment is greater than 0.5.

[0015] In some embodiments of the present invention, the regulating pipe section includes an regulating pipe body and an regulating member, the regulating member is installed in the regulating pipe body, the regulating member has at least one regulating hole, and the regulating hole is communicated with the flow pipe section.

[0016] In some embodiments of the present invention, the distributor includes a plate body and a shell, an expansion cavity with an opening is defined in the shell, the plate body is connected to the shell and closes the opening, a plurality of diversion holes are provided on the plate body, the expansion cavity is a rotating body structure, and the opening and the inflow hole are respectively arranged at the two axial ends of the expansion cavity.

[0017] In some embodiments of the present invention, the expansion chamber has an open end that is truncated in a cone shape, and along the flow direction of the inflow hole, the diameter of the expansion chamber has an open end that gradually increases, and the plate body is embedded in the opening and adapted to the shape of the expansion chamber.

[0018] In some embodiments of the present invention, the axial direction of the diverter hole is set at an angle to the axial direction of the inflow hole, and along the flow direction of the inflow hole, the axial direction of the diverter hole is inclined away from the axis of the inflow hole.

[0019] In some embodiments of the present invention, a mounting groove is provided at the outer edge of the plate body facing the expansion cavity, the mounting groove is arranged around the axis of the inflow hole, and the end of the shell facing away from the inflow hole is installed in the mounting groove.

[0020] In some embodiments of the present invention, the axial length of the diverter hole is greater than 1.5 mm;

[0021] Alternatively, the diversion component further includes a flanging structure, which is arranged on a side of the plate body facing the first connecting tube, and the flanging structure is arranged around the first connecting tube, and the first connecting tube is connected to the flanging structure.

[0022] 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, the diverter cone is coaxially arranged with the inflow hole, and along the axial direction of the inflow hole, the distance between the small diameter end of the diverter cone and the inflow hole is L1, and the aperture of the inflow hole is D, wherein the ratio of L1 to D ranges from 0 to 5.

[0023] The second aspect of the present invention provides a HVAC device, comprising the diversion assembly provided in the first aspect of the present invention.

[0024] The HVAC equipment proposed in the second aspect of the present invention realizes the flow regulation function through the regulating pipe section of the first connecting pipe. The flow area of ​​the regulating pipe section can be pre-set to assume the flow regulation function of the fluid. The first connecting pipe is fixed through the diversion hole on the plate body and is connected to the expansion cavity inside the shell. The original diversion hole plate responsible for diversion and flow regulation can be eliminated, making the structure more compact, reducing production costs and facilitating installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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:

[0026] Figure 1 The figure schematically shows the assembly structure of the first connecting pipe and the plate body (with the mounting groove) according to the embodiment of the present utility model;

[0027] Figure 2 Schematically shows a cross-sectional view of a first connecting pipe and a plate body (with a mounting groove) according to an embodiment of the present utility model;

[0028] Figure 3 Schematically shows a schematic diagram of the assembly structure of the plate and the shell according to an embodiment of the present utility model;

[0029] Figure 4 Schematically shows a cross-sectional structural diagram of a plate and a shell according to an embodiment of the present utility model;

[0030] Figure 5 Schematically shows a schematic diagram of the assembly structure of the plate and the shell (with mounting grooves) according to an embodiment of the present utility model;

[0031] Figure 6 Schematically shows a cross-sectional structural diagram of a plate body and a shell (with mounting grooves) according to an embodiment of the present utility model;

[0032] Figure 7 Schematically shows a schematic diagram of the assembly structure of the plate and the shell (with a flange structure) according to an embodiment of the present utility model;

[0033] Figure 8 Schematically shows a cross-sectional structural diagram of a plate body and a shell (with a flange structure) according to an embodiment of the present utility model;

[0034] Figure 9 The structure diagram of the first connecting pipe (one end with reduced diameter) according to the embodiment of the present utility model is schematically shown;

[0035] Figure 10 Schematically shows a cross-sectional structural diagram of a first connecting pipe (with a reduced diameter at one end) according to an embodiment of the present utility model;

[0036] Figure 11 The structure diagram of the first connecting pipe (with reduced diameter along the way) according to the embodiment of the present utility model is schematically shown;

[0037] Figure 12 Schematically shows a cross-sectional structural diagram of a first connecting pipe (with reduced diameter along the way) according to an embodiment of the present utility model;

[0038] Figure 13 Schematically shows a cross-sectional structural diagram of a first connecting pipe (with an adjusting member) according to an embodiment of the present utility model;

[0039] Figure 14 The figure schematically shows the assembly structure of the first connecting pipe and the plate body (the plate body has an inclination angle) according to the embodiment of the present utility model;

[0040] Figure 15 The schematic diagram of the structure of the first connecting pipe and the plate body (the plate body has an inclination angle) according to the embodiment of the present utility model is schematically shown;

[0041] Figure 16 Schematically shows a cross-sectional structural diagram of a housing and a plate (the plate has an inclination angle) according to an embodiment of the present utility model;

[0042] Figure 17 Schematically shows a structural diagram of a HVAC device according to an embodiment of the present utility model;

[0043] The reference numerals are as follows:

[0044] 1. HVAC equipment;

[0045] 1000, diversion assembly; 2000, first heat exchanger; 3000, second heat exchanger; 4000, compressor; 5000, refrigeration throttle valve; 6000, four-way valve;

[0046] 10. Shell; 111. Inflow hole; 103. Expansion chamber;

[0047] 20. Plate body; 201. Diversion hole; 24. Flanged structure; 25. Mounting slot;

[0048] 30. Diverter cone;

[0049] 200, first connecting pipe;

[0050] 230, adjusting pipe section; 2301, adjusting pipe body; 2302, adjusting member; 2303, adjusting hole;

[0051] 240, circulation pipe section; 2401, first pipe section; 2402, second pipe section;

[0052] 300. Second connecting pipe. DETAILED DESCRIPTION

[0053] 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.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] like Figures 1 to 17 As shown, the first aspect of the present invention proposes a diversion assembly 1000, including a shell 10, a plate body 20 and a first connecting pipe 200. The shell 10 defines an expansion chamber 103 inside, and the expansion chamber 103 has an opening. The shell 10 is also provided with an inflow hole 111 connected to the expansion chamber 103. The plate body 20 is installed on the shell 10 and closes the opening. The plate body 20 has a plurality of diversion holes 201, and the diversion holes 201 are connected to the expansion chamber 103. One end of the first connecting pipe 200 is connected to the plate body 20 and is connected to the diversion holes 201. The first connecting pipe 200 includes a regulating pipe section 230 and a flow pipe section 240. The flow pipe section 240 is connected to the regulating pipe section 230, and the flow area of ​​the regulating pipe section 230 is smaller than the flow area of ​​the flow pipe section 240.

[0058] It is understood that the housing 10 can be a basin-shaped structure, formed by stamping a metal rigid part, such as a stainless steel plate, in one piece. An expansion chamber 103 with an open end is formed in the housing 10. The expansion chamber 103 has a certain volume and radial cross-section to buffer and fully mix the incoming fluid, thereby improving the uniformity of the gas-liquid two-phase of the fluid before diversion. The expansion chamber 103 can be truncated cone-shaped, frustum-shaped, or hemispherical, so that the flow area of ​​the expansion chamber 103 gradually expands along the flow direction of the fluid, and the inflow hole 111 is set at the small diameter end of the expansion chamber 103, so that the flow velocity of the fluid is reduced after entering the expansion chamber 103 from the inflow hole 111, further buffered and mixed, and flows along the axial direction of the expansion chamber 103 to the first connecting pipe 200 for diversion. In addition, an auxiliary structure for diversion can be set in the expansion chamber 103, such as a diversion cone 30 or other diversion and diversion structure, so that the flow efficiency is higher and the diversion effect is better. The plate 20 is mounted on the opening and closes the opening. The shape of the plate 20 can be adapted to the opening. For example, the plate 20 can be configured as a circle or a regular polygon. The plate 20 can be directly welded to the edge of the opening of the housing 10, or the plate 20 can be interference fit within the expansion cavity 103, or the plate 20 can be fixedly connected to the housing 10 via fasteners such as snap bolts. The plate 20 can be provided with a plurality of diverter holes 201. The plurality of diverter holes 201 can be arranged in a circumferential array or annularly spaced to facilitate the placement of the diverter cone 30 at the center of the circle. The diverter holes 201 can be circular, regular polygonal, or other shapes. The first connecting tube 200 is used to connect the expansion cavity 103 with the heat exchange tubes of the heat exchanger. One end of the first connecting tube 200 can be inserted into the diversion hole 201 to be fixed, or one end face of the first connecting tube 200 can be welded to the plate surface of the plate body 20 away from the expansion cavity 103 to be fixed. The first connecting tube 200 has a regulating tube section 230 that can adjust the flow rate. The regulating tube section 230 can be located at one end of the first connecting tube 200 close to the shell 10, or at the middle of the first connecting tube 200. The regulating tube section 230 can be a reducing structure, so that the diameter of the first connecting tube 200 is reduced to adjust the flow area. Specifically, the diameter of some tube sections can be narrowed by stamping when processing the first connecting tube 200. For example, the diameter of one end of the first connecting tube 200 that is inserted into the diversion hole 201 is narrowed to form the regulating tube section 230. The regulating pipe section 230 can also be realized by providing an adjusting member 2302 in the first connecting pipe 200. By adjusting the flow area of ​​the first connecting pipe 200 through the adjusting hole 2303 on the adjusting member 2302, the flow distribution function can also be adjusted according to actual conditions, thereby replacing the function of the original diverter hole 201. This makes the overall structure more compact, facilitates processing, and reduces costs.

[0059] The diversion assembly 1000 proposed in the first aspect of the present invention realizes the flow regulation function through the regulating pipe section 230 of the first connecting pipe 200. The flow area of ​​the regulating pipe section 230 can be pre-set to assume the flow regulation function of the fluid. The first connecting pipe 200 is fixed through the diversion hole 201 on the plate body 20 and is connected to the expansion cavity 103 inside the shell 10. The original diversion hole 201 plate responsible for diversion and flow regulation can be eliminated, making the structure more compact, reducing production costs and facilitating installation.

[0060] In some embodiments of the present invention, one end of the first connecting pipe 200 connected to the plate body 20 is inserted into the diversion hole 201 .

[0061] It is understood that one end of the first connecting tube 200 can be inserted into the diverter hole 201 to achieve fixation with the housing 10. The portion of the first connecting tube 200 inserted into the diverter hole 201 can be fixed by interference fit with the hole wall of the diverter hole 201, or the portion of the first connecting tube 200 inserted into the diverter hole 201 can be fixed by welding to the hole wall of the diverter hole 201. To ensure the reliability of the connection between the first connecting tube 200 and the housing 10, the thickness of the plate 20 can be set to be greater than a certain value, and the length of the first connecting tube 200 inserted into the diverter hole 201 can also be set to be greater than a certain value, so that the length of the first connecting tube 200 inserted into the diverter hole 201 is not too short, thereby improving the reliability of the connection between the first connecting tube 200 and the housing 10 and making it difficult for the first connecting tube 200 to fall out of the diverter hole 201. In addition, the portion between the regulating pipe section 230 and the circulation pipe section 240 can abut against the plate surface of the plate body 20 on the side away from the expansion cavity 103, and the two can be fixedly connected by welding to further improve the reliability of the connection between the first connecting pipe 200 and the shell 10.

[0062] In some embodiments of the present invention, the outer diameter of the regulating tube segment 230 is smaller than the outer diameter of the circulation tube segment 240 , and the inner diameter of the regulating tube segment 230 is smaller than the inner diameter of the circulation tube segment 240 .

[0063] It is understood that the regulating tube section 230 and the circulation tube section 240 can be manufactured from a single tube through a machining process. The regulating tube section 230 and the circulation tube section 240 are an integrated structure, which has greater strength and reduces the risk of leakage. The regulating tube section 230 can be machined into a reduced diameter structure by forming a portion of the first connecting tube 200 to adjust the flow area of ​​the first connecting tube 200, thereby achieving the flow distribution function of the diverted fluid. Specifically, the outer diameter of the regulating tube section 230 is smaller than the outer diameter of the circulation tube section 240, and the inner diameter of the regulating tube section 230 is smaller than the inner diameter of the circulation tube section 240, that is, the wall thickness of the regulating tube section 230 can be consistent with the wall thickness of the circulation tube section 240.

[0064] In some embodiments of the present invention, at least a portion of the regulating pipe section 230 is inserted into the diversion hole 201 and connected to the plate body 20 . Along the flow direction of the first connecting pipe 200 , the flow pipe section 240 is located downstream of the regulating pipe section 230 .

[0065] It is understood that the regulating tube segment 230 is located at one end of the first connecting tube 200. The regulating tube segment 230 can be partially or fully inserted into the diverter hole 201, with the end of the regulating tube segment 230 facing away from the flow tube segment 240 located in the diverter hole 201 to reduce the impact on the flow of fluid within the expansion chamber 103. The regulating tube segment 230 can be interference-fitted into the diverter hole 201 to achieve a fixed connection between the regulating tube segment 230 and the diverter hole 201. Alternatively, the regulating tube segment 230 can be inserted into the diverter hole 201 and then fixed to the housing 10 by welding. Specifically, the diversion hole 201 can be set to an aperture corresponding to the required flow rate, and then the diameter of the regulating pipe section 230 can be adjusted to match the aperture of the diversion hole 201, and the regulating pipe section 230 can be plugged and fixedly connected to the diversion hole 201, so that the flow distribution function of the diversion hole 201 plate is replaced by the reducing structure of the regulating pipe section 230, making the structure more compact and improving the production and installation efficiency.

[0066] In some embodiments of the present invention, the circulation pipe section 240 includes a first pipe section 2401 and a second pipe section 2402. At least a portion of the first pipe section 2401 is inserted into the diversion hole 201 and connected to the plate body 20. Along the circulation direction of the first connecting pipe 200, the second pipe section 2402 is located downstream of the first pipe section 2401, and the second pipe section 2402 is connected to the first pipe section 2401 through the adjusting pipe section 230.

[0067] It is understood that along the flow direction of the fluid, the first pipe section 2401, the regulating pipe section 230, and the second pipe section 2402 flow in sequence, and the first pipe section 2401 is fully or partially inserted into the diverter hole 201. The first pipe section 2401 can be interference-fitted into the diverter hole 201 to achieve fixation between the first pipe section 2401 and the diverter hole 201. Alternatively, the first pipe section 2401 is inserted into the diverter hole 201 and then fixed to the housing 10 by welding. Specifically, the aperture of the diversion hole 201 can be adapted to the diameter of the first pipe section 2401, and the first pipe section 2401 can be plugged and fixedly connected to the diversion hole 201. The adjusting pipe section 230 is arranged between the first pipe section 2401 and the second pipe section 2402, so that the adjusting pipe section 230 can be realized by mechanically processing the middle part of a pipe to form a reduced diameter structure. At this time, the adjusting pipe section 230 with a flow area different from that of the flow pipe section 240 can change the flow area of ​​the first connecting pipe 200, replace the flow distribution function of the diversion hole 201 plate, make the structure more compact, and improve the production and installation efficiency.

[0068] In some embodiments of the present invention, the ratio of the axial length of the adjusting tube segment 230 to the inner diameter of the adjusting tube segment 230 is greater than 0.5.

[0069] It can be understood that the ratio of the axial length of the regulating tube segment 230 to the inner diameter of the regulating tube segment 230 is optimized so that the axial length of the regulating tube segment 230 is moderate to avoid the adverse effect of the regulating tube segment 230 on the flow resistance, and the inner diameter of the regulating tube segment 230 is moderate to also avoid the adverse effect of the regulating tube segment 230 on the flow efficiency due to being too small.

[0070] In some embodiments of the present invention, the regulating pipe section 230 includes an regulating pipe body 2301 and an regulating member 2302 . The regulating member 2302 is installed in the regulating pipe body 2301 . The regulating member 2302 has at least one regulating hole 2303 . The regulating hole 2303 is connected to the flow pipe section 240 .

[0071] It is understood that the regulating tube body 2301 can be the same tube as the tube body of the circulation tube section 240, that is, the regulating tube body 2301 can have the same wall thickness and inner diameter as the tube body of the circulation tube section 240. An adjusting member 2302 can be provided in the regulating tube body 2301, and flow regulation is achieved through the adjusting holes 2303 on the adjusting member 2302. The adjusting member 2302 can be a mesh structure to also have a filtering function, or the regulating member 2302 can be cylindrical and compatible with the regulating tube body 2301, and the regulating member 2302 is provided with at least one adjusting hole 2303. The axial direction of the adjusting hole 2303 is parallel to the axial direction of the regulating member 2302, so that the fluid can adjust the flow rate through the adjusting hole 2303 and flow to the downstream circulation tube section 240. Specifically, for the adjustment hole 2303, the ratio of the axial length of the adjustment hole 2303 to the aperture of the adjustment hole 2303 can also be optimized, so that the axial length of the adjustment hole 2303 is moderate to avoid the adverse effect of the adjustment hole 2303 on the flow resistance, and the inner diameter of the adjustment hole 2303 is moderate to also avoid the adverse effect of the adjustment hole 2303 being too small on the flow efficiency.

[0072] In some embodiments of the present invention, the axial length of the diverter hole 201 is greater than 1.5 mm;

[0073] Alternatively, the diversion assembly 1000 further includes a flanging structure, which is disposed on a side of the plate body 20 facing the first connecting pipe 200 , and the flanging structure surrounds the first connecting pipe 200 , and the first connecting pipe 200 is connected to the flanging structure.

[0074] It is understandable that in order to ensure the reliability of the connection between the first connecting tube 200 and the diverter hole 201, the axial length of the diverter hole 201 needs to be set to be greater than a certain length, preferably greater than 1.5 mm, so that the diverter hole 201 is deep enough to reliably insert the first connecting tube 200, and the thickness of the plate body 20 is not too large, which will result in high cost and greater production difficulty. In addition, without increasing the thickness of the plate body 20, the contact area between the first connecting tube 200 and the diverter hole 201 can be increased by providing a flanging structure. The flanging structure is provided on the plate surface of the plate body 20 on the side away from the expansion cavity 103 and is located at the orifice of the diverter hole 201. The flanging structure can be provided in an annular shape, and the plate body 20 at the orifice of the diverter hole 201 is bent by a sheet metal bending process to form a flanging structure, or the flanging structure can be made separately and connected and fixed to the plate body 20 by welding. The flange structure can be arranged in a ring shape, surrounding the axial direction of the diversion hole 201, or the flange structure can include multiple parts, which are arranged at intervals along the circumference of the diversion hole 201, which can also achieve the effect of increasing the connection area of ​​the first connecting tube 200, thereby improving the reliability of the connection between the first connecting tube 200 and the plate body 20.

[0075] In some embodiments of the present invention, the expansion chamber 103 has an open end that is truncated in a cone shape, and along the flow direction of the inflow hole 111, the diameter of the open end of the expansion chamber 103 gradually increases, and the plate body 20 is embedded and installed in the opening and adapted to the shape of the expansion chamber 103.

[0076] It can be understood that the opening of the expansion chamber 103 is in the shape of a truncated cone, with its small diameter end facing the inflow hole 111 and the large diameter end open, so that the expansion chamber 103 is in the shape of an inverted truncated cone, and the cavity wall of the expansion chamber 103 at the opening is annular and is set at an angle to the axial direction of the expansion chamber 103, and along the flow direction of the inflow hole 111, the cavity wall is inclined in the direction away from the axis of the expansion chamber 103, and the shape of the plate body 20 is adapted to the truncated cone portion of the expansion chamber 103, that is, the side wall of the plate body 20 is at an angle to the axial direction of the expansion chamber 103. The expansion cavity 103 is set at a certain degree, and along the flow direction of the inflow hole 111, the cavity wall is inclined in the direction away from the axis of the expansion cavity 103. The plate body 20 can be embedded in the opening during installation and cooperate with the frustum part of the expansion cavity 103. Since the cavity wall of the expansion cavity 103 is set at an angle relative to the axis, the cavity wall of the expansion cavity 103 can provide a certain support for the plate body 20, thereby improving the reliability of the connection between the plate body 20 and the shell 10. Specifically, the plate body 20 can be further fixed to the shell 10 by interference connection or welding.

[0077] In some embodiments of the present invention, the axial direction of the diverter hole 201 is set at an angle to the axial direction of the inflow hole 111, and along the flow direction of the diverter hole 201, the axial direction of the diverter hole 201 is inclined away from the axis of the inflow hole 111.

[0078] It is understood that since the plate body 20 is inclined at a certain angle relative to the axis of the inflow hole 111 and the expansion chamber 103, the diverter hole 201 can also be inclined at a certain angle relative to the axis of the inflow hole 111 and the expansion chamber 103 for ease of processing. Specifically, the angle between the axis of the diverter hole 201 and the axis of the expansion chamber 103 can be set to 5°, so that the openings of the diverter holes 201 on the side of the plate body 20 away from the expansion chamber 103 are more dispersed, thereby making the connection and installation between the first connecting tube 200 and the diverter hole 201 more convenient and easier to operate. In addition, the plate surface of the plate body 20 on the side away from the expansion chamber 103 can also be set to be conical, and the angle between the plate surface of the plate body 20 on the side away from the expansion chamber 103 and the radial direction of the expansion chamber 103 is 5°.

[0079] In some embodiments of the present invention, a mounting groove 13 is provided at the outer edge of the plate body 20 facing the expansion cavity 103 . The mounting groove 13 is arranged around the axis of the inflow hole 111 , and the end of the shell 10 facing away from the inflow hole 111 is installed in the mounting groove 13 .

[0080] It can be understood that a mounting groove 13 surrounding the plate body 20 can be provided at the edge of the plate body 20 facing the expansion cavity 103. The mounting groove 13 can be arranged in a ring shape and extend around the axis of the plate body 20, or the mounting groove 13 includes multiple parts, which are arranged at intervals along the circumference of the plate body 20. The shape of the mounting groove 13 matches the open part of the shell 10. The mounting groove 13 can be defined by a first plane that is annular and parallel to the radial direction of the plate body 20 and a second plane that is annular and parallel to the axial direction of the plate body 20. When the plate body 20 is installed, the second plane can be embedded in the expansion cavity 103 and abutted against the cavity wall of the expansion cavity 103. The first plane is then abutted against the end face of the open part of the shell 10 to achieve partial embedding and installation of the plate body 20 in the expansion cavity 103, and the open part of the shell 10 is matched and fixed with the mounting groove 13, which further improves the reliability of the connection between the plate body 20 and the shell 10.

[0081] 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 chamber 103, the diverter cone 30 is coaxially arranged with the inflow hole 111, and along the axial direction of the inflow hole 111, the distance between the small diameter end of the diverter cone 30 and the inflow hole 111 is L1, the aperture of the inflow hole 111 is D, and the ratio of D to L1 ranges from 0 to 5.

[0082] It is understood that the diverter cone 30 may be conical or pyramidal in shape, or may be a conical structure with a star-shaped cross-section. The diverter cone 30 may be formed separately and then welded to the side of the plate body 20 facing the expansion cavity 103. The diverter cone 30 may also be integrally formed with the plate body 20 and machined on the plate body 20 through a stamping process. The large-diameter end of the diverter cone 30 is connected to the plate body 20, and the small-diameter end of the diverter cone 30 may be disposed toward the inflow hole 111. The diverter cone 30 is coaxially disposed with the expansion cavity 103 and the inflow hole 111. The minimum distance between the small-diameter end of the diverter cone 30 and the inflow hole 111 along the axial direction of the inflow hole 111 is not too large. Specifically, the ratio of the diameter of the inflow hole 111 to the minimum distance between the small-diameter end of the diverter cone 30 and the inflow hole 111 along the axial direction of the inflow hole 111 is set to 0 to 5. This ensures that the minimum distance between the small-diameter end of the diverter cone 30 and the inflow hole 111 along the axial direction of the inflow hole 111 is moderate, thereby allowing the fluid entering the expansion chamber 103 from the inflow hole 111 to be immediately diverted by the diverter cone 30. This improves the diversion efficiency and shortens the length of the housing 10 in the axial direction of the expansion chamber 103, making the structure more compact.

[0083] In some embodiments of the present invention, the splitter cone 30 and the plate body 20 are an integrated structure.

[0084] It is understandable that the diverter cone 30 can be formed by stamping in the middle of the plate body 20, so that the structural strength is higher and the leakage risk is lower.

[0085] In some embodiments of the present invention, the splitter cone 30 may be a pyramid structure.

[0086] It can be understood that the diverter cone 30 is arranged in the expansion chamber 103, and the position of the inflow hole 111 is arranged relative to the top of the diverter cone 30, which can effectively guide the fluid to directly act on the central area of ​​the diverter cone 30. This arrangement ensures that the fluid first contacts the top of the diverter cone 30 after entering the expansion chamber 103, so that the fluid can be evenly dispersed to the different guide surfaces of the diverter cone 30. This not only reduces the turbulence of the fluid in the expansion chamber 103, but also ensures the consistency of the flow rate and flow rate of the fluid entering each guide surface. The diverter cone 30 has a pyramidal structure, and at least three guide surfaces on the diverter cone 30 are interconnected along its circumference and are arranged one-to-one with the diverter holes 201. This design ensures that each guide surface specifically guides the fluid into the corresponding diverter hole 201. Since the guide surfaces are continuously connected, they can effectively guide the fluid to flow downward from the top of the diverter cone 30, avoiding collision and turbulence of the fluid in the cavity, and ensuring uniform distribution of the fluid. After entering through the inlet 111, the fluid directly contacts the top of the diverter cone 30 and is then smoothly dispersed along the guide surface to each diverter hole 201. Due to the corresponding relationship between the guide surface and the diverter holes 201, the fluid flow rate received by each diverter hole 201 is relatively consistent, further improving the diversion uniformity of the system.

[0087] Alternatively, the diverter cone 30 has a star-shaped cone structure with a plurality of guide grooves arranged along its circumference.

[0088] It can be understood that the cross-section of the diverter cone 30 is triangular, and the diverter cone 30 has a plurality of guide grooves arranged along the circumference of the diverter cone 30, and the guide grooves extend along the height direction of the diverter cone 30. The radial cross-section of the guide grooves along the diverter cone 30 can be an arc surface, or a U-shape, and the guide grooves are arranged in a one-to-one correspondence with the diverter holes 201. Such a design ensures that each guide groove specifically guides the fluid into the corresponding diverter hole 201. Since the guide grooves are continuously connected, they can effectively guide the fluid to flow downward from the top of the diverter cone 30, avoiding collisions and turbulence of the fluid in the cavity, and ensuring uniform distribution of the fluid. After the fluid enters from the inlet 111, it directly contacts the top of the diverter cone 30, and is then smoothly dispersed to each diverter hole 201 along the guide grooves. Due to the corresponding relationship between the guide grooves and the diverter holes 201, the fluid flow received by each diverter hole 201 is relatively consistent, further improving the diversion uniformity of the system. Specifically, the small diameter end of the splitter cone 30 can be set in a hemispherical shape, so that the splitter cone 30 does not produce stress concentration, improves the strength of the structure, and reduces damage to the small diameter end of the splitter cone 30 under large flow rates.

[0089] The second aspect of the present invention provides a HVAC device 1 including the diverter assembly 1000 provided in the first aspect of the present invention. The diverter assembly 1000 is connected to the first heat exchanger 2000 via a first connecting pipe 200 and is connected to the refrigeration throttle valve 5000 via a second connecting pipe 300 .

[0090] The HVAC equipment 1 proposed in the second aspect of the present invention realizes the flow regulation function through the regulating pipe section 230 of the first connecting pipe 200. The flow area of ​​the regulating pipe section 230 can be pre-set to assume the flow regulation function of the fluid. The first connecting pipe 200 is fixed through the diversion hole on the plate body 20 and is connected to the expansion cavity 103 inside the shell 10. The original diversion orifice plate responsible for diversion and flow regulation can be eliminated, making the structure more compact, reducing production costs and facilitating installation.

[0091] It is understandable that if Figure 17 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 diversion 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 diversion 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 the air conditioner between cooling and heating modes. The diversion component 1000 can be used for diversion of the refrigerant of the air conditioner outdoor unit before it enters the multiple heat exchange tubes of the first heat exchanger 2000. The axial direction of the incoming flow pipe 302 at the inlet end of the diversion component 1000 is tangent to the circumferential direction of the inlet pipe 301, so that the refrigerant in the incoming flow pipe 302 enters the inlet pipe 301 tangentially. Under the action of centrifugal force, the gas-liquid two-phase refrigerant is forced to form an annular flow inside the inlet pipe 301, ensuring that the refrigerant entering the distributor 100 is in a good gas-liquid two-phase mixed state, thereby making the gas-liquid two-phase refrigerant fully mixed, thereby improving the uniformity of the refrigerant distribution at the inlet of the diversion component 1000.

[0092] 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 inlet hole is in communication with the diversion holes; A first connecting pipe, one end of which is connected to the distributor and communicated with the diversion hole, the first connecting pipe includes a regulating pipe section and a flow pipe section, the flow pipe section is communicated with the regulating pipe section, and the flow area of ​​the regulating pipe section is smaller than the flow area of ​​the flow pipe section.

2. The flow diversion assembly according to claim 1, characterized in that: One end of the first connecting pipe connected to the distributor is inserted into the diversion hole.

3. The flow diversion assembly according to claim 2, characterized in that: The outer diameter of the regulating pipe section is smaller than the outer diameter of the circulation pipe section, and the inner diameter of the regulating pipe section is smaller than the inner diameter of the circulation pipe section.

4. The flow diversion assembly according to claim 3, characterized in that: At least a portion of the regulating pipe section is inserted into the diversion hole, and along the flow direction of the first connecting pipe, the flow pipe section is located downstream of the regulating pipe section.

5. The flow diversion assembly according to claim 3, characterized in that: The circulation pipe section includes a first pipe section and a second pipe section. At least a portion of the first pipe section is inserted into the diversion hole. Along the circulation direction of the first connecting pipe, the second pipe section is located downstream of the first pipe section, and the second pipe section is connected to the first pipe section through the regulating pipe section.

6. The flow diversion assembly according to claim 1, characterized in that: The ratio of the axial length of the adjusting tube segment to the inner diameter of the adjusting tube segment is greater than 0.

5.

7. The flow diversion assembly according to claim 1, characterized in that: The regulating pipe section includes a regulating pipe body and a regulating member, wherein the regulating member is installed in the regulating pipe body and has at least one regulating hole, and the regulating hole is communicated with the flow pipe section.

8. The flow diversion assembly according to any one of claims 1 to 7, characterized in that: The distributor includes a plate body and a shell, an expansion cavity with an opening is defined in the shell, the plate body is connected to the shell and closes the opening, a plurality of diversion holes are provided on the plate body, the expansion cavity is a rotating body structure, and the opening and the inflow hole are respectively arranged at the two axial ends of the expansion cavity.

9. The flow diversion assembly according to claim 8, characterized in that: The expansion cavity has a truncated cone-shaped end with the opening, and the diameter of the expansion cavity with the opening gradually increases along the flow direction of the inflow hole. The plate body is embedded in the opening and adapted to the shape of the expansion cavity.

10. The flow diversion assembly according to claim 9, characterized in that: The axial direction of the diverter hole is arranged at an angle to the axial direction of the inflow hole, and along the flow direction of the inflow hole, the axial direction of the diverter hole is inclined in a direction away from the axis of the inflow hole.

11. The flow diversion assembly according to claim 8, characterized in that: An installation groove is provided at the outer edge of the plate body facing the expansion cavity. The installation groove is arranged around the axis of the inflow hole. The end of the shell facing away from the inflow hole is installed in the installation groove.

12. The flow diversion assembly according to claim 8, characterized in that: The axial length of the diversion hole is greater than 1.5 mm; Alternatively, the diversion component further includes a flanging structure, which is arranged on a side of the plate body facing the first connecting tube, and the flanging structure is arranged around the first connecting tube, and the first connecting tube is connected to the flanging structure.

13. The flow diversion assembly according to claim 8, characterized in that The diverter assembly also includes a diverter cone, the small diameter end of the diverter cone is arranged in the expansion cavity, the diverter cone is coaxially arranged with the inflow hole, and along the axial direction of the inflow hole, the distance between the small diameter end of the diverter cone and the inflow hole is L1, and the aperture of the inflow hole is D, wherein the ratio of L1 to D ranges from 0 to 5.

14. A HVAC equipment, characterized in that: Comprising the diversion assembly according to any one of claims 1 to 13.

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