Joint part with hole, fluid conducting assembly, manufacturing method of fluid conducting assembly and brazing filler metal piece

Abstract

The invention discloses a joint part with a hole, a fluid conducting assembly, a manufacturing method of the fluid conducting assembly and a brazing filler metal piece, the joint part with the hole comprises at least two annular bodies and at least one connecting bridge, the connecting bridge is connected with the two adjacent annular bodies, the joint part with the hole is provided with a connecting hole and an inner hole, and the connecting hole penetrates through the annular bodies; at least one of the outer wall of the joint part with the hole and the inner wall corresponding to the inner hole is provided with a flow separation groove, the flow separation groove is at least formed in the connecting bridge, and the flow separation groove extends in the circumferential direction of the joint part with the hole. In the fluid conduction assembly, the flow isolation grooves are at least formed in the outer wall of the connecting bridge and the inner wall corresponding to the inner hole of the joint part with the hole, during welding, redundant welding flux mainly flows down along the connecting bridge, then the welding flux intensively flows into the flow isolation grooves, and the welding flux is prevented from continuously flowing downwards to the sealing end face of the joint part with the hole; the influence of welding flux on the sealing end face part of the joint part with the hole is reduced, and the sealing performance of the fluid conduction assembly is improved.

Description

Technical Field

[0001] The invention relates to the technical field of thermal management, and in particular to a joint part with a hole, a fluid conducting component and a manufacturing method thereof, and a solder sheet. Background Art

[0002] Existing fluid conducting components usually include a conducting part and a flow channel plate. The conducting part is welded to the flow channel plate. The conducting part includes a circular body. Two adjacent circular bodies are connected by a long strip. Under some specific welding conditions, the conducting part is located below the flow channel plate. The excess solder will mainly flow down along the outer wall and inner wall of the long strip, causing material creep. The solder flowing to the sealing end face of the conducting part for sealing connection will affect its roughness, and ultimately affect the sealing performance of the fluid conducting component. Summary of the Invention

[0003] The purpose of the present invention is to provide a hole joint part, a fluid conducting component and its manufacturing method, and a solder sheet, so as to reduce the influence of solder on the end of the hole joint part used for sealing connection and improve the sealing performance of its subsequent connection.

[0004] In order to solve the above technical problems, one aspect of the present invention provides a perforated joint part, comprising at least two annular bodies and at least one connecting bridge, wherein the connecting bridge connects two adjacent annular bodies, the perforated joint part has a connecting hole and an inner hole, the connecting hole passes through the annular body, and at least one of the outer wall of the perforated joint part and the inner wall corresponding to the inner hole is provided with a flow partitioning groove, the flow partitioning groove is at least provided on the connecting bridge, and the flow partitioning groove extends along the circumference of the perforated joint part.

[0005] One end of the perforated joint part is used for welding to other parts, and the other end of the perforated joint part is used for sealing connection with another part. In order to reduce the influence of solder flow on the roughness of the sealed end of the perforated joint part during welding, in the present invention, at least one of the outer wall of the perforated joint part and the inner wall corresponding to the inner hole of the perforated joint part is provided with a flow isolation groove, and the flow isolation groove is at least provided on the connecting bridge. The flow isolation groove can block the solder from flowing to the end of the perforated joint part used for sealing connection to a certain extent, thereby reducing the influence of the solder on the end of the perforated joint part used for sealing connection, and can improve the sealing performance of the subsequent sealing of the perforated joint part.

[0006] Another aspect of the present invention provides a flow conducting assembly, comprising a perforated joint component and a flow channel plate, wherein the perforated joint component has a sealing end surface portion and a welding end surface portion, and the welding end surface portion of the perforated joint component is welded to the flow channel plate;

[0007] The perforated joint part includes at least two annular bodies and at least one connecting bridge, wherein the connecting bridge connects two adjacent annular bodies. The perforated joint part has a connecting hole and an inner hole, wherein the connecting hole passes through the annular body. At least one of the outer wall of the perforated joint part and the inner wall corresponding to the inner hole is provided with a flow partitioning groove, wherein the flow partitioning groove is provided at least on the connecting bridge, and the flow partitioning groove extends along the circumference of the perforated joint part.

[0008] At least one of the outer wall of the perforated joint part and the inner wall corresponding to the inner hole is provided with a flow isolation groove, and the flow isolation groove is provided at least on the connecting bridge. During welding, excess solder can flow down along the outer wall and inner wall of the connecting bridge, and then the solder will flow into the interior of the flow isolation groove, preventing the solder from continuing to flow to the sealing end surface of the perforated joint part, thereby reducing the impact of the solder on the sealing end surface of the perforated joint part and improving the sealing performance of the fluid conducting component.

[0009] Another aspect of the present invention provides a method for manufacturing a fluid conducting component.

[0010] Provided is a joint part with a hole, comprising at least two annular bodies and at least one connecting bridge, wherein the connecting bridge connects two adjacent annular bodies.

[0011] A flow channel plate is provided.

[0012] A solder sheet is provided, comprising at least two hole sheets and at least one connecting sheet, wherein two adjacent hole sheets are connected to each other through the connecting sheet.

[0013] Placing a solder sheet between the perforated joint part and the flow channel plate, wherein the annular body and the perforated sheet correspond to each other, and the connecting bridge and the connecting sheet correspond to each other, wherein the width of the connecting sheet is smaller than the width of the corresponding connecting bridge;

[0014] Brazing of manifold plates, joint parts with holes, and brazing sheets.

[0015] In this manufacturing method, the perforated joint part and the flow channel plate are welded by means of a solder sheet, wherein the width of the connecting sheet is smaller than the width of the corresponding connecting bridge, thereby reducing the amount of solder. During the brazing process, after the solder melts, dripping of the solder at this location can be reduced, thereby reducing the problem of solder overflow, and thereby reducing the influence of the roughness of the end face portion of the fluid conducting component used for sealing connection, thereby improving the sealing performance of the fluid conducting component when used for sealing connection.

[0016] Another aspect of the present invention provides a solder sheet comprising at least two hole sheets and at least one connecting sheet, wherein two adjacent hole sheets are connected together via the connecting sheet, and an inner side of the hole sheet at least partially forms an inner recess.

[0017] The solder sheet can be used for welding parts with hole joints. By setting an inner recess on the inner side of the hole sheet, the amount of solder used at the corresponding position on the inner side of the hole sheet can be reduced during welding, thereby reducing the influence of the molten solder flow on the end face portion of the part welded with the solder sheet for sealing connection, and can be used to improve the sealing performance of the part welded with the solder sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of an embodiment of a fluid conducting component provided by the present invention;

[0019] Figure 2 This is a schematic structural diagram of a first embodiment of a hole-bearing joint component provided by the present invention;

[0020] Figure 3 This is a schematic structural diagram of a second embodiment of a hole-bearing connector part provided by the present invention;

[0021] Figure 4 This is a schematic structural diagram of a third embodiment of a joint part with a hole provided by the present invention;

[0022] Figure 5 This is a schematic structural diagram of a fourth embodiment of a joint part with a hole provided by the present invention;

[0023] Figure 6 for Figure 2 Schematic diagram of the structure of the second angle of the hole joint part;

[0024] Figure 7 for Figure 2 Schematic diagram of the structure of the third angle of the hole joint part;

[0025] Figure 8 for Figure 2 Schematic diagram of the structure of the fourth angle of the hole joint part;

[0026] Figure 9 A schematic structural diagram of a first embodiment of a solder sheet provided by the present invention;

[0027] Figure 10 This is a schematic structural diagram of a second embodiment of the solder sheet provided by the present invention;

[0028] in, Figures 1-10 The reference numerals in the figures are described as follows:

[0029] 1-hole joint part; 11-annular body; 12-connecting bridge; 1a-flow separation groove; 1a1-first groove; 1a2-second groove; 1a3-third groove; 1a4-fourth groove; 1b-sealing end surface; 1c-welding end surface; a1-connecting hole; a2-inner hole;

[0030] 2- solder sheet; 21- hole sheet; 211- inner recess; 22- connection sheet; 22a- through hole;

[0031] 3- flow channel plate;

[0032] 4-Sealing gasket. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] The term “plurality” herein generally refers to more than two; and when “plurality” is used to indicate the number of certain components, it does not indicate the relationship between the quantities of these components.

[0035] The perforated connector components and fluid conducting components of this application are particularly suitable for use in thermal management systems. When used in a system, the perforated connector components and fluid conducting components are filled with fluid. Thermal management systems can be used for thermal control such as cooling, heating, and temperature control. For example, they can be used in vehicle air conditioning, engine thermal management, battery thermal management, electric motor thermal management, and heat storage.

[0036] Perforated connectors are used to connect different parts. They feature a connection hole, allowing fluid flow between the parts. Sometimes, a perforated connector may have only one end for welding, with the other end used for a sealed connection, such as by inserting a gasket. Generally, the amount of solder used in single-hole connectors is controlled through design, making it less likely that solder overflow will affect the end intended for sealing. Multi-hole connectors, on the other hand, tend to use a single, integrated flux for welding to simplify the process. This reduces pre-welding steps and investment costs, ensures the stability of the flux itself, and minimizes the impact on weld quality. However, integrated fluxes are prone to solder creep. In current production, especially under certain welding conditions, when the end of a perforated connector intended for sealing is located at the bottom, excess solder can easily creep onto the end intended for sealing, affecting the roughness and, consequently, the seal between the part and the other component. Therefore, in actual production, we hope to save production input costs while not sacrificing product performance, but this demand is difficult to meet only by controlling the amount of solder used.

[0037] Please refer to Figure 1-Figure 2 , Figure 1 A schematic structural diagram of an embodiment of a fluid conducting component provided by the present invention; Figure 2 This is a schematic structural diagram of the first embodiment of the hole joint part provided by the present invention.

[0038] The present invention provides a perforated joint component 1 comprising at least two annular bodies 11 and at least one connecting bridge 12. The connecting bridge 12 connects two adjacent annular bodies 11. The perforated joint component 1 has a connecting hole a1 and an inner hole a2. The connecting hole a1 extends through the annular bodies 11. At least one of the outer wall of the perforated joint component 1 and the inner wall corresponding to the inner hole a2 is provided with a flow dividing groove 1a. The flow dividing groove 1a is provided at least on the connecting bridge 12 and extends along the circumference of the perforated joint component 1. If there are two or more annular bodies 11, then there are also two or more connecting holes a1.

[0039] like Figure 1 As shown, one end of the perforated joint part 1 is welded to the flow channel plate 3 through a solder sheet 2, and the end face of the perforated joint part 1 welded to the flow channel plate 3 is a welding end face portion 1c. The other end of the perforated joint part 1 has a sealing end face portion 1b for installing a sealing gasket 4. In order to reduce the influence of the solder flowing to the sealing end face portion 1b of the perforated joint part 1 on the roughness of the sealing end face portion 1b during welding, in this embodiment, at least one of the outer wall of the perforated joint part 1 and the inner wall of the perforated joint part 1 is provided with a flow partitioning groove 1a. The flow partitioning groove 1a is at least provided on the connecting bridge 12, and the flow partitioning groove 1a extends along the circumferential direction of the perforated joint part 1. It should be noted that the extension direction of the flow partitioning groove 1a can be parallel to the sealing end face portion 1b or the welding end face portion 1c of the perforated joint part 1; or, the flow partitioning groove 1a can also extend at an angle.

[0040] As configured above, the flow isolation groove 1a can play an isolation role. During welding, the perforated joint part 1 and the flow channel plate 3 are welded through the solder sheet 2. After the solder sheet 2 melts, the excess solder mainly flows down along the wall of the connecting bridge 12, and then the solder will concentrate and flow into the inside of the flow isolation groove 1a, preventing the solder from continuing to flow downward to the sealing end surface portion 1b of the perforated joint part 1, thereby reducing the impact on the sealing end surface portion 1b of the perforated joint part 1, and ensuring the reliable installation of the sealing end surface portion 1b of the perforated joint part 1 and the sealing gasket 4 as much as possible, thereby improving the sealing performance of the fluid conducting component.

[0041] There is no limit to the number of flow partitioning grooves 1a provided on the outer wall of the perforated joint part 1 or the inner wall of the perforated joint part 1a. For example, the number of flow partitioning grooves 1a provided on the outer wall of the perforated joint part 1 can be one or more, and the multiple flow partitioning grooves 1a are distributed at intervals along the axial direction of the connecting bridge 12; the number of flow partitioning grooves 1a provided on the inner wall of the perforated joint part 1a can be one or more, and the multiple flow partitioning grooves 1a are distributed at intervals along the axial direction of the connecting bridge 12.

[0042] In this article, the axial direction refers to Figure 1The penetration direction of the inner hole a2, or the height direction of the hole joint part 1, has two ends in this direction, one end of which is used for welding to the flow channel plate 3, and the other end is a sealing part for sealing connection with other parts.

[0043] The dimensions of the isolation groove 1a, such as depth and width, can be adaptively adjusted according to the actual material creeping conditions, ensuring the structural strength of the perforated joint part 1 while ensuring that the solder does not flow out of the isolation groove 1a and continue to flow toward the sealing surface.

[0044] like Figure 1 and Figure 2 It can be seen that in this embodiment, the flow isolation groove 1a surrounds the outer wall of the perforated joint part 1 to form a circle.

[0045] As configured above, the annular flow isolation groove 1a separates the welding end surface portion 1c and the sealing end surface portion 1b of the perforated joint part 1. During welding, a small amount of solder flowing down along the outer wall of the annular body 11 will also be concentrated and flow into the interior of the flow isolation groove 1a, preventing the solder from continuing to flow downward to the sealing end surface portion 1b, further reducing the impact on the sealing end surface portion 1b of the perforated joint part 1, and further improving the sealing performance of the fluid conducting component.

[0046] Please refer to Figure 3 , Figure 3 This is a schematic structural diagram of a second embodiment of a hole-connecting joint part provided by the present invention.

[0047] In this embodiment, the flow isolation groove 1a includes a first groove 1a1 and a second groove 1a2. The first groove 1a1 is located on the outer wall of the connecting bridge 12 and extends along the circumference of the perforated joint part 1. The second groove 1a2 is located on the outer wall of the annular body 11 and extends along the circumference of the perforated joint part 1. The first groove 1a1 and the second groove 1a2 are not connected. In this embodiment, the first groove 1a1 and the second groove 1a2 have different heights in the axial direction, so that they are not connected.

[0048] In this way, the solder flowing down from the outer wall of the connecting bridge 12 will be concentrated into the first groove 1a1, and the solder flowing down from the outer wall of the annular body 11 will be concentrated into the second groove 1a2, preventing the solder from continuing to flow downward to the sealing end surface portion 1b, reducing the impact on the sealing end surface portion 1b of the perforated joint part 1, and improving the sealing performance of the fluid conducting component.

[0049] Please refer to Figure 4 , Figure 4 This is a schematic structural diagram of a third embodiment of the hole-connecting connector provided by the present invention.

[0050] It can be seen that in this embodiment, the flow partitioning groove 1a surrounds the inner wall of the joint part 1 with a hole, that is, the inner wall corresponding to the inner hole a2 forms a circle.

[0051] As configured above, the annular flow isolation groove 1a separates the welding end surface portion 1c and the sealing end surface portion 1b of the perforated joint part 1. During welding, a small amount of solder flowing down along the inner wall of the annular body 11 will also be concentrated and flow into the interior of the flow isolation groove 1a, preventing the solder from continuing to flow downward to the sealing end surface portion 1b, further reducing the impact on the sealing end surface portion 1b of the perforated joint part 1, and further improving the sealing performance of the fluid conducting component.

[0052] Please refer to Figure 5 , Figure 5 This is a schematic structural diagram of a fourth embodiment of the hole-connecting connector provided by the present invention.

[0053] As can be seen, in this embodiment, the flow isolation groove 1a includes at least a third groove 1a3 and a fourth groove 1a4. The third groove 1a3 is located on the inner wall of the connecting bridge 12 and extends along the circumference of the perforated joint component 1. The fourth groove 1a4 is located in the annular body 11 and extends along the circumference of the perforated joint component 1. The third groove 1a3 and the fourth groove 1a4 are not connected. In this embodiment, the third groove 1a3 and the fourth groove 1a4 have different heights in the axial direction, so that they are not connected.

[0054] In this way, the solder flowing down from the inner wall of the connecting bridge 12 will be concentrated into the third groove 1a3, and the solder flowing down from the inner wall corresponding to the inner hole a2 will be concentrated into the fourth groove 1a4, preventing the solder from continuing to flow downward to the sealing end surface portion 1b, reducing the impact on the sealing end surface portion 1b of the perforated joint part 1, and improving the sealing performance of the fluid conducting component.

[0055] Please refer to Figure 6-Figure 8 , Figure 6 for Figure 2 Schematic diagram of the structure of the second angle of the hole joint part; Figure 7 for Figure 2 Schematic diagram of the structure of the third angle of the hole joint part; Figure 8 for Figure 2 Schematic diagram of the structure of the fourth angle of the hole joint part.

[0056] In this embodiment, the perforated joint component 1 is a three-hole component, that is, it includes three annular bodies 11 and three connecting bridges 12. Adjacent annular bodies 11 are connected by connecting bridges 12, and the perforated joint components 1 are connected end to end to form a ring structure. In fact, the perforated joint component 1 can include at least two annular bodies 11 and at least one connecting bridge 12, specifically:

[0057] When the number of the annular bodies 11 is two and the number of the connecting bridge 12 is one, the hole joint part 1 is a two-hole part, and the two-hole part is a linear structure.

[0058] When the number of the annular bodies 11 is more than three, the number of the connecting bridges 12 is also more than three, the number of the connecting bridges 12 is equal to the number of the annular bodies 11, the connecting bridges 12 are connected between two adjacent annular bodies 11, and the hole joint parts 1 are connected end to end to form an annular structure.

[0059] It should be understood that the flow partition 1a of the hole joint part 1 can be partially located on the outer wall of the hole joint part 1, or partially located on the inner wall corresponding to the inner hole a2 of the hole joint part 1, or entirely located on the outer wall of the hole joint part 1, or entirely located on the inner wall corresponding to the inner hole a2 of the hole joint part 1. In addition, in some embodiments, there can be one inner hole a2, and in some embodiments, there can be more than two inner holes a2, for example, between two connecting bridges 12, there can be a plurality of inner holes a2. Figure 1 The inner hole shown is divided into two, which may be applicable to the case of multiple holes and can be adjusted according to the actual shape.

[0060] Further, by Figure 6-Figure 8 It can be seen that the axial length of the connecting bridge 12 is smaller than the axial length of the annular body 11. The axial length of the connecting bridge 12 is L1, and the axial length of the annular body 11 is L2. L1<L2. One of the end walls of the connecting bridge 12 is flush with the corresponding end wall of the annular body 11. The flush end walls of the connecting bridge 12 and the annular body 11 jointly form a sealing end surface portion 1b. The other end wall of the connecting bridge 12 and the corresponding end wall of the annular body 11 have a difference in height direction. The other end wall of the annular body 11 forms a welding end surface portion 1c.

[0061] So, please combine Figure 1 It is understood that during welding, there is a certain distance between the connecting bridge 12 and the flow channel plate 3. On the one hand, it reduces the impact on product quality caused by excessive overflow of the solder into the internal connecting hole of the annular body after melting; on the other hand, it has a heat insulation effect to prevent the flow channel plate 3 from being damaged due to excessive solder temperature during the brazing process.

[0062] Please continue to refer to Figure 1 The fluid conducting assembly of this embodiment further includes a sealing gasket 4, which is mounted on the end of the perforated connector component 1 away from the flow channel plate 3. Because this fluid conducting assembly also requires a sealed connection with other components, to ensure the sealing reliability of the perforated connector component 1 and the sealing gasket 4, the surface roughness of the sealing end surface 1b of the perforated connector component 1 needs to be limited. In this embodiment, the surface roughness range of the sealing end surface 1b of the perforated connector component 1 is: 1.2μm≤Ra≤1.8μm, 10.5μm≤Rt≤14μm.

[0063] Here, Rt is defined as the maximum peak-to-valley height within the profile evaluation length.

[0064] Ra is defined as the arithmetic mean of the absolute values ​​of the profile deviations within the sampling length (lr). In actual measurement, the more measurement points there are, the more accurate Ra is.

[0065] The above roughness size limitation can ensure the sealing reliability of the hole joint part 1 and the sealing gasket 4, and ensure product quality.

[0066] Reference Figure 1 The fluid conducting assembly shown includes a joint part 1 with a hole and a flow channel plate 3. The joint part 1 with a hole has a sealing end surface 1b and a welding end surface 1c. The welding end surface 1c of the joint part 1 with a hole is welded to the flow channel plate 3.

[0067] The perforated joint part 1 includes at least two annular bodies 11 and at least one connecting bridge 12. The connecting bridge 12 connects two adjacent annular bodies 11. At least one of the outer wall of the perforated joint part 1 and the inner wall of the perforated joint part 1 is provided with a flow isolation groove 1a. The flow isolation groove 1a is at least provided on the connecting bridge 12. The flow isolation groove 1a extends along the circumference of the perforated joint part 1.

[0068] The fluid conducting component plays an isolation role through the flow isolation groove 1a set in the perforated joint part 1. During welding, the perforated joint part 1 and the flow channel plate 3 are welded through the solder sheet 2. After the solder sheet 2 melts, the excess solder mainly flows down along the wall of the connecting bridge 12, and then the solder will flow into the inner and / or outer flow isolation groove 1a, preventing the solder from continuing to flow downward to the sealing end surface portion 1b of the perforated joint part 1, thereby reducing the impact on the sealing end surface portion 1b of the perforated joint part 1 and improving the sealing performance of the fluid conducting component.

[0069] Among them, the specific structure of the hole joint part 1, the structural form of the flow isolation groove 1a, etc. have been described in detail above and will not be repeated here.

[0070] In the formed fluid conducting component, at least a portion of the interior of the flow isolation groove 1 a is provided with solder, which is formed after the solder sheet 2 is melted during soldering.

[0071] As an embodiment, a method for manufacturing a fluid conducting component,

[0072] A hole joint part 1 is provided, which includes at least two annular bodies 11 and at least one connecting bridge 12, wherein the connecting bridge 12 connects two adjacent annular bodies 11.

[0073] Provide a flow channel plate 3,

[0074] A solder sheet 2 is provided, comprising at least two hole sheets 21 and at least one connecting sheet 22, wherein two adjacent hole sheets 21 are connected to each other via the connecting sheet 22.

[0075] Place the solder sheet 2 between the perforated joint part 1 and the flow channel plate 3, with the annular body 11 and the perforated sheet 21 corresponding to each other, and the connecting bridge 12 and the connecting sheet 22 corresponding to each other, wherein the width of the connecting sheet 22 is smaller than the width of the corresponding connecting bridge 12;

[0076] The flow channel plate 3, the hole joint part 1, and the brazing material sheet 2 are brazed.

[0077] In the manufacturing method of the fluid conducting component, the hole joint part 1 and the flow channel plate 3 are welded by means of a solder sheet 2, and the shape of the solder sheet 2 is consistent with the shape of the hole joint part 1; at the same time, since the connecting piece 22 actually only serves to connect the various hole pieces 21 together and does not serve as a welding function, the width of the connecting piece 22 is smaller than the width of the corresponding connecting bridge 12, which can reduce the amount of solder. During the brazing process, after the solder is melted, the dripping of the solder here can be reduced, the overflow problem of the solder can be reduced, the influence of the roughness of the end face portion of the fluid conducting component used for sealing connection is reduced, and the sealing performance of the fluid conducting component when used for sealing connection is improved.

[0078] For further information, please refer to Figure 2 and Figure 9 , define the width of the connecting piece 22 as D1, the corresponding width of the connecting bridge 12 as D2, and the value range of D1 is: 0.625D2≤D1≤0.8D2.

[0079] As defined by the above dimensions, the amount of solder can be reduced while ensuring the overall connection strength of the solder sheet 2 .

[0080] Further, by Figure 9 As can be seen, in the first embodiment, the inner side of the orifice plate 21 forms an inner recess 211, making the width of the inner side of the orifice plate 21 smaller than the width of the corresponding position of the annular body 11. This can reduce the amount of solder near the inner side of the annular body 11 from the source, and reduce the dripping of molten solder from the inner wall corresponding to the inner hole a2.

[0081] exist Figure 10 In the second embodiment shown, the inner side of the hole plate 21 forms an inner recess 211 only at the connection with the connecting plate 22, that is, the inner part of the hole plate 21 forms an inner recess 211, so that the width of the inner side of the hole plate 21 is smaller than the width of the corresponding position of the annular body 11.

[0082] In this way, the amount of solder near the inner side of the hole joint component 1 can also be reduced from the source, thereby preventing the molten solder from dripping from the inner wall corresponding to the inner hole a2.

[0083] In summary, the inner side of the orifice plate 21 may at least partially form an inner concave portion 211 .

[0084] Please continue to refer to Figure 10 In the solder sheet 2 of this embodiment, a through hole 22a is provided in the middle of one of the connecting sheets 22 .

[0085] In this way, the amount of solder in the connecting piece 22 can be further reduced, thus preventing the occurrence of solder overflow. Of course, the arrangement of the through hole 22a should be based on ensuring the structural strength of the solder piece 2, ensuring that the solder piece 2 is not easily deformed, and ensuring the welding quality of the fluid conducting component.

[0086] The solder sheet 2 of this embodiment is used for welding to form the aforementioned fluid conducting component. The shape of the solder sheet 2 is consistent with the shape of the hole joint part 1. Specifically:

[0087] In this embodiment, the perforated joint part 1 is a three-hole part, and the solder sheet 2 also includes three perforated sheets 21 and three connecting sheets 22. The perforated sheets 21 are used to weld the corresponding annular body 11. The adjacent perforated sheets 21 are connected to each other through the connecting sheet 22 and connected end to end to form an annular structure.

[0088] If the hole joint part 1 is a two-hole part, the solder sheet 2 also includes two hole sheets 21 and a connecting sheet 22. The hole sheets 21 are used to weld the corresponding annular body 11. The two hole sheets 21 are connected together through the connecting sheet 22. The solder sheet 2 is a linear structure.

[0089] In short, the solder sheet 2 includes at least two hole sheets 21 and at least one connecting sheet 22. The two adjacent hole sheets 21 are connected together through the connecting sheet 22. The hole sheets 21 are used to weld the corresponding annular bodies 11, and the connecting sheet 22 only plays a connecting role, so that the solder sheet 2 is an integrated structure, ensuring that the solder sheet 2 is not easily deformed during the cleaning process, thereby avoiding reducing the brazing quality.

[0090] At the same time, a recessed portion 211 is formed at least partially on the inner side of the orifice plate 21, making the width of the inner side of the orifice plate 21 smaller than the width of the corresponding position of the annular body 11. This can reduce the amount of solder near the inner side of the annular body 11 and reduce the amount of molten solder dripping from the inner wall corresponding to the inner hole a2.

[0091] In this embodiment, the width of the connecting piece 22 is smaller than the width of the corresponding connecting bridge 12 .

[0092] Since the connecting piece 22 only serves to connect the various hole pieces 21 together in practice and does not serve as a welding function, the width of the connecting piece 22 is smaller than the width of the corresponding connecting bridge 12, which can reduce the amount of solder. During the brazing process, after the solder melts, the dripping of the solder here can be reduced, reducing the overflow problem of excess solder.

[0093] The above describes in detail the perforated connector components, fluid conducting components, and methods for manufacturing the same, as well as the solder sheets, provided in the embodiments of the present invention. Specific examples are used herein to illustrate the principles and implementations of the present invention. The description of the above embodiments is intended only to facilitate understanding of the methods and core concepts of the present invention. It should be noted that those skilled in the art may make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications fall within the scope of protection of the claims.

Claims

1. A joint part with a hole, characterized in that: The invention comprises at least two annular bodies (11) and at least one connecting bridge (12), wherein the connecting bridge (12) connects two adjacent annular bodies (11), the hole joint part has a connecting hole (a1) and an inner hole (a2), the connecting hole (a1) passes through the annular body (11), at least one of the outer wall of the hole joint part (1) and the inner wall corresponding to the inner hole (a2) is provided with a flow partition groove (1a), the flow partition groove (1a) is at least provided on the connecting bridge (12), and the flow partition groove (1a) extends along the circumference of the hole joint part (1).

2. The hole joint component according to claim 1, characterized in that: The perforated joint part is used for a thermal management system, wherein the flow isolation groove (1a) surrounds the outer wall of the perforated joint part (1) to form a circle; or, the flow isolation groove (1a) comprises at least a first groove (1a1) and a second groove (1a2), wherein the first groove (1a1) is located on the outer wall of the connecting bridge (12) and extends along the circumference of the perforated joint part (1), and the second groove (1a2) is located on the outer wall of the annular body (11) and extends along the circumference of the perforated joint part (1), and the first groove (1a1) and the second groove (1a2) are not connected.

3. The hole joint component according to claim 1, characterized in that: The perforated joint part is used for a thermal management system, wherein the flow partitioning groove (1a) surrounds the inner wall corresponding to the inner hole (a2) to form a circle; or, the flow partitioning groove (1a) includes at least a third groove (1a3) and a fourth groove (1a4), wherein the third groove (1a3) is located on the inner wall of the connecting bridge (12) and extends along the circumference of the perforated joint part (1), and the fourth groove (1a4) is located on the annular body (11) and extends along the circumference of the perforated joint part (1), and the third groove (1a3) and the fourth groove (1a4) are not connected.

4. The hole joint component according to claim 1, 2 or 3, characterized in that: The axial length of the connecting bridge (12) is smaller than the axial length of the annular body (11); one end wall of the connecting bridge (12) is flush with the corresponding end wall of the annular body (11); the flush end walls of the connecting bridge (12) and the annular body (11) jointly form a sealing end face portion (1b); the other end wall of the connecting bridge (12) and the corresponding end wall of the annular body (11) have a height difference; the other end wall of the annular body (11) forms a welding end face portion (1c).

5. The hole joint component according to claim 4, characterized in that: The surface roughness range of the sealing end surface portion (1b) is: 1.2 μm≤Ra≤1.8 μm, 10.5 μm≤Rt≤14 μm.

6. A fluid conducting component, characterized in that: The invention comprises a joint part with a hole (1) and a flow channel plate (3), wherein the joint part with a hole (1) has a sealing end surface portion (1b) and a welding end surface portion (1c), and the welding end surface portion (1c) of the joint part with a hole (1) and the flow channel plate (3) are welded; The perforated joint part (1) comprises at least two annular bodies (11) and at least one connecting bridge (12), wherein the connecting bridge (12) connects two adjacent annular bodies (11), and the perforated joint part has a connecting hole (a1) and an inner hole (a2), wherein the connecting hole (a1) passes through the annular body (11), and at least one of the outer wall of the perforated joint part (1) and the inner wall corresponding to the inner hole (a2) is provided with a flow partitioning groove (1a), wherein the flow partitioning groove (1a) is at least provided on the connecting bridge (12), and the flow partitioning groove (1a) extends along the circumference of the perforated joint part (1).

7. The fluid conducting component according to claim 6, characterized in that: The fluid conducting component is used for a thermal management system, and at least a portion of the interior of the flow isolation groove (1a) is provided with solder.

8. The fluid conducting component according to claim 6 or 7, characterized in that: The flow isolation groove (1a) surrounds the outer wall of the perforated joint part (1) to form a circle; or, the flow isolation groove (1a) includes at least a first groove (1a1) and a second groove (1a2), wherein the first groove (1a1) is located on the outer wall of the connecting bridge (12), and the second groove (1a2) is located on the outer wall of the annular body (11), and the first groove (1a1) and the second groove (1a2) are not connected.

9. The fluid conducting component according to claim 6 or 7, characterized in that: The flow isolation groove (1a) surrounds the inner wall corresponding to the inner hole (a2) to form a circle; or, the flow isolation groove (1a) includes at least a third groove (1a3) and a fourth groove (1a4), the third groove (1a3) is located on the inner wall of the connecting bridge (12), the fourth groove (1a4) is located on the annular body (11), and the third groove (1a3) and the fourth groove (1a4) are not connected.

10. The fluid conducting component according to claim 6 or 7, characterized in that: The axial length of the connecting bridge (12) is smaller than the axial length of the annular body (11); one end wall of the connecting bridge (12) is flush with the corresponding end wall of the annular body (11); the flush end walls of the connecting bridge (12) and the annular body (11) jointly form the sealing end surface portion (1b); the other end wall of the connecting bridge (12) and the flow channel plate have a height difference; the other end wall of the annular body (11) is welded to the flow channel plate (3).

11. The fluid conducting component according to claim 10, characterized in that: The surface roughness range of the sealing end surface portion (1b) is: 1.2 μm≤Ra≤1.8 μm, 10.5 μm≤Rt≤14 μm.

12. A method for manufacturing a fluid conducting component, characterized in that: Provided is a hole joint part (1), comprising at least two annular bodies (11) and at least one connecting bridge (12), wherein the connecting bridge (12) connects two adjacent annular bodies (11). A flow channel plate (3) is provided, A solder sheet (2) is provided, comprising at least two hole sheets (21) and at least one connecting sheet (22), wherein two adjacent hole sheets (21) are connected together via the connecting sheet (22). The solder sheet (2) is placed between the hole joint part (1) and the flow channel plate (3), the annular body (11) and the hole sheet (21) are positioned correspondingly, and the connecting bridge (12) and the connecting sheet (22) are positioned correspondingly, wherein the width of the connecting sheet (22) is smaller than the width of the corresponding connecting bridge (12); The flow channel plate (3), the hole joint part (1), and the brazing material sheet (2) are brazed.

13. The method for manufacturing a fluid conducting component according to claim 12, wherein: The width of the connecting piece (22) is D1, corresponding to the width of the connecting bridge (12) is D2, 0.625D2≤D1≤0.8D2; and / or, at least a portion of the inner side of the perforated plate (21) forms an inner concave portion (211); And / or, a through hole (22a) is provided in the middle of at least one of the connecting pieces (22).

14. The method for manufacturing a fluid conducting component according to claim 12, wherein: The perforated joint part (1) has a connecting hole (a1) and an inner hole (a2), the connecting hole (a1) passes through the annular body (11), at least one of the outer wall of the perforated joint part (1) and the inner wall corresponding to the inner hole (a2) is provided with a flow partitioning groove (1a), the flow partitioning groove (1a) is provided at least on the connecting bridge (12), and the flow partitioning groove (1a) extends along the circumference of the perforated joint part (1); During welding, after the solder sheet (2) melts, excess solder flows down at least along the wall surface of the connecting bridge (12) and flows into the interior of the flow partition groove (1a) on the outer wall of the perforated joint part (1) and / or the interior of the flow partition groove (1a) on the inner wall corresponding to the inner hole (a2).

15. A solder sheet, characterized in that: The solder sheet (2) comprises at least two hole sheets (21) and at least one connecting sheet (22), two adjacent hole sheets (21) are connected together via the connecting sheet (22), and an inner concave portion (211) is at least partially formed on the inner side of the hole sheet (21).

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