A dual channel current collector

Abstract

A double-channel current collector comprises a first shell and a second shell. The first shell has an open face and a closed face opposite to the open face. A plurality of first cannula holes are formed in the closed face along the length direction thereof. The interior of the first shell defines a first medium chamber. The second shell has an outer contour matched with the opening of the first shell and is embedded in the first shell from the open face to form a nested matching structure with the first shell. The interior of the second shell defines a second medium chamber. The second shell has an assembly face opposite to the closed face of the first shell. The assembly face is provided with second cannula holes corresponding to the first cannula holes one by one. By adopting the nested matching double-shell structure of the first shell and the second shell, the structure not only reduces the risk of thermal deformation and residual stress concentration in the manufacturing process, but also realizes the sealing of the chamber through the structure itself.

Description

Technical Field

[0001] This utility model relates to the field of radiator technology, specifically a dual-channel collector. Background Technology

[0002] The manifold is an important component in a heat exchanger system used to collect, distribute, or guide fluids, and is widely used in automotive thermal management, new energy cooling, power electronics heat dissipation, and other fields.

[0003] In existing technologies, common collector structures often employ single-cavity or multi-cavity metal shells, which, through insertion or welding with heat exchange flat or round tubes, achieve the function of guiding the inflow and outflow of the working medium. A typical dual-channel collector structure usually includes a shell with multiple plates spot-welded together, inside which there are baffles for separating two fluids, which are then connected and cooperated with flat tubes of different channels to achieve the function of guiding and distributing multi-medium fluids.

[0004] However, the above structure still has some problems in practical applications: On the one hand, multi-channel collectors often rely on high-precision processing techniques such as sheet metal stamping, brazing, and laser welding, with high tolerance requirements for part dimensions and high processing costs. On the other hand, the multi-point welding between the housing and the insertion interface is prone to welding stress, incomplete welding, or misalignment due to heat-affected zones, resulting in insufficient sealing performance and potential leakage risks.

[0005] Therefore, there is an urgent need to provide a dual-channel manifold with a more compact structure, clear chamber division, better sealing performance, and easier pipe connection. Summary of the Invention

[0006] This utility model addresses the shortcomings of existing technologies by proposing a dual-channel current collector, the specific technical solution of which is as follows: A dual-channel current collector, characterized by comprising: The first housing is in the shape of a cuboid. The first housing has an open surface and a closed surface opposite to the open surface, and a plurality of first insertion holes are provided on the closed surface along its length. The interior of the first housing defines a first medium chamber; The second housing has an outer contour that matches the opening of the first housing, and is embedded in the first housing from the opening surface to form a nested mating structure with the first housing; The interior of the second housing defines a second medium chamber; The second housing has a mounting surface that faces the closed surface of the first housing; The assembly surface is provided with a second insertion hole that corresponds one-to-one with the first insertion hole.

[0007] To better realize this utility model, it can be further made as follows: The top of the two side walls of the first housing are provided with a locking structure; The engaging structure includes a flange portion protruding outward from the top of the side wall, and a side plate formed by vertically extending the flange portion; The flange and the side plate together form a limiting mating surface, which is used to achieve a sealed fit with the outer side wall of the second housing when the second housing is inserted.

[0008] Furthermore: the first housing has removable sealing caps at both ends; The sealing cover is provided with a first limiting protrusion and a second limiting protrusion; The first limiting protrusion is provided on the side of the sealing cover facing the bottom surface of the first housing, and is used to be inserted into the first grooves provided at both ends of the bottom surface of the first housing; The second limiting protrusion is provided on the side of the sealing cover facing the second housing assembly surface, and is used to be inserted into the second grooves provided at both ends of the second housing assembly surface.

[0009] Furthermore, the first housing has multiple arc-shaped locking teeth on both sides of the opening surface along the axial direction, and the arc-shaped locking teeth are engaged with the outer side of the second housing.

[0010] Furthermore: the first housing has a first medium inlet and / or a first medium outlet, and the second housing has a second medium inlet and / or a second medium outlet.

[0011] The beneficial effects of this utility model are as follows: This invention employs a double-shell structure with a nested first shell and a second shell, respectively defining a first medium chamber and a second medium chamber. Compared to traditional multi-chamber current collectors with internally welded partitions, this avoids the processing difficulties and sealing uncertainties associated with welding partitions in a confined space. This structure not only reduces the risk of thermal deformation and residual stress concentration during manufacturing but also achieves chamber sealing through the structure itself.

[0012] The mounting surface of the second shell has a second insertion hole that corresponds one-to-one with the insertion hole of the first shell, forming a clear and independent dual-channel insertion and mating relationship. This allows each dual-channel flat tube to achieve parallel connection of two fluids through a set of insertion holes, simplifying the pipeline layout and avoiding problems such as media interference and reduced heat exchange efficiency.

[0013] The locking structure at the top of the first housing is formed by the flange and the side plate to create a limiting mating surface. When the second housing is inserted, it forms an effective fit with its outer side wall, which not only plays a reliable mechanical limiting role, but also achieves auxiliary sealing through the fit between the structural surfaces.

[0014] By setting a removable sealing cover and using a first limiting protrusion and a second limiting protrusion to cooperate in the grooves at the ends of the two housings, it is convenient to disassemble, repair and replace later. Attached Figure Description

[0015] Figure 1 This is a perspective view of Example 1; Figure 2 This is an enlarged view of Example 1 from direction B; Figure 3 This is a top view of Example 2; Figure 4 for Figure 3 AA section view; Figure 5 This is a perspective view of Example 2; Figure 6 This is a first shell structure diagram of Example 2; The attached figures are as follows: 1. First housing; 2. Sealing surface; 3. Assembly surface; 4. Flange; 5. Side plate; 6. First medium chamber; 7. First insertion hole; 8. Second housing; 9. Second medium chamber; 10. Second insertion hole; 11. Sealing cap; 12. First limiting protrusion; 13. Second limiting protrusion; 14. Locking tooth. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] In the description of this utility model, it should be noted that the terms "vertical," "upper," "lower," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] Example 1: A dual-channel collector technical solution as follows Figure 1 to Figure 4 As shown, a dual-channel manifold is a component of a three-medium heat exchanger, used in conjunction with a dual-channel flat tube.

[0019] The dual-channel flat tube is a standard component in a three-medium heat exchanger and belongs to the existing structure. Inside the dual-channel flat tube, there are a first medium channel and a second medium channel, which are used to guide the first medium and the second medium, respectively.

[0020] The dual-channel collector includes a nested first housing 1 and a second housing 8. The first housing 1 is generally rectangular and has an open side and a closed side 2 opposite to it. The interior of the first housing 1 defines a first medium chamber 6 for receiving and guiding the flow of the first medium.

[0021] Multiple first insertion holes 7 are provided on the closed surface 2 along the length of the shell. The first insertion holes 7 are used to communicate with the end of the first medium channel of the dual-channel flat tube to realize the entry and exit of the first medium.

[0022] The second housing 8 has an outer contour that matches the opening surface of the first housing 1, and is inserted into the interior of the first housing 1 from the opening surface to form a nested mating structure.

[0023] The interior of the second housing 8 defines a second medium chamber 9. The second housing 8 has an assembly surface 3 that is opposite to the closed surface 2 of the first housing 1. The assembly surface 3 is provided with a plurality of second insertion holes 10. The number and distribution of the second insertion holes 10 correspond to the first insertion holes 7. The end of the second medium channel of each dual-channel flat tube is connected to the corresponding second insertion hole 10 to realize the entry and exit of the second medium.

[0024] To ensure the limiting fit of the second housing 8 during insertion and installation, the top of the two side walls of the first housing 1 are provided with a locking structure. The locking structure includes a flange 4 protruding outward from the top of the side wall and a side plate 5 extending vertically upward from the flange 4. The flange 4 and the side plate 5 form a limiting fit surface. During the insertion of the second housing 8 into the first housing 1, the flange 4 and the side plate 5 are aligned, guided, and sealed to the outer side wall of the second housing 8 to prevent leakage and installation misalignment.

[0025] Both ends of the first housing 1 are provided with detachable sealing caps 11. Each sealing cap 11 is provided with two limiting protrusions in two directions. The first limiting protrusion 12 is provided on the side of the sealing cap 11 facing the bottom of the first housing 1, and is used to be inserted into the first grooves at both ends of the bottom surface of the first housing 1. The second limiting protrusion 13 is provided on the side of the sealing cap 11 facing the assembly surface 3 of the second housing 8, and is used to be inserted into the second grooves at both ends of the assembly surface 3 of the second housing 8.

[0026] The first housing 1 and the second housing 8 are respectively provided with interface structures that communicate with the internal chambers according to actual usage requirements.

[0027] The first housing 1 is provided with a first medium inlet and / or a first medium outlet to realize the inflow and outflow of the first medium in the first medium chamber 6, and the second housing 8 is provided with a second medium inlet and / or a second medium outlet to realize the input and output of the second medium.

[0028] The location and number of the aforementioned inlets and outlets can be flexibly adjusted according to the fluid inlet and outlet path arrangement in different application scenarios to adapt to the structural layout and heat exchange requirements of the three-medium radiator.

[0029] By setting up a nested first shell 1 and a second shell 8, the first medium chamber 6 and the second medium chamber 9 are arranged in a vertical stack. By connecting the first medium chamber 6 with the first medium channel and the second medium chamber 9 with the second medium channel, the third medium can exchange heat with the first medium and the second medium simultaneously.

[0030] The difference between Example 2 and Example 1 is as follows: Unlike the structure in Embodiment 1 which uses a removable sealing cap to achieve end closure, in this Embodiment 2, the first housing 1 is an integrally molded structure with both ends being integrally closed to form a continuous sealed end face.

[0031] To further improve the stable fit between the first housing 1 and the second housing 8, in this embodiment 2, multiple arc-shaped retaining teeth 14 are provided on both sides of the opening surface of the first housing 1 along the axial direction. These arc-shaped retaining teeth 14 form a snap-fit ​​connection with the outer surface of the second housing 8. When the second housing 8 is inserted into the first housing 1, the arc-shaped retaining teeth 14 engage with the outer surface of the second housing 8, achieving axial positioning to prevent axial displacement or loosening of the second housing 8 during operation, thus ensuring the sealing of the collector assembly.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dual-channel current collector, characterized in that... include: The first housing is in the shape of a cuboid. The first housing has an open surface and a closed surface opposite to the open surface, and a plurality of first insertion holes are provided on the closed surface along its length. The interior of the first housing defines a first medium chamber; The second housing has an outer contour that matches the opening of the first housing, and is embedded in the first housing from the opening surface to form a nested mating structure with the first housing; The interior of the second housing defines a second medium chamber; The second housing has a mounting surface that faces the closed surface of the first housing; The assembly surface is provided with a second insertion hole that corresponds one-to-one with the first insertion hole.

2. The dual-channel current collector according to claim 1, characterized in that: The top of the two side walls of the first housing are provided with a locking structure; The engaging structure includes a flange portion protruding outward from the top of the side wall, and a side plate formed by vertically extending the flange portion; The flange and the side plate together form a limiting mating surface, which is used to achieve a sealed fit with the outer side wall of the second housing when the second housing is inserted.

3. The dual-channel current collector according to claim 2, characterized in that: The first housing has removable sealing caps at both ends; The sealing cover is provided with a first limiting protrusion and a second limiting protrusion; The first limiting protrusion is provided on the side of the sealing cover facing the bottom surface of the first housing, and is used to be inserted into the first grooves provided at both ends of the bottom surface of the first housing; The second limiting protrusion is provided on the side of the sealing cover facing the second housing assembly surface, and is used to be inserted into the second grooves provided at both ends of the second housing assembly surface.

4. A dual-channel current collector according to claim 3, characterized in that: The first housing has several arc-shaped locking teeth on both sides of the opening surface along the axial direction, and the arc-shaped locking teeth are fastened to the outer side of the second housing.

5. A dual-channel current collector according to claim 4, characterized in that: The first housing has a first medium inlet and / or a first medium outlet, and the second housing has a second medium inlet and / or a second medium outlet.

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