Combined connecting structure of flat pipes

Abstract

The utility model discloses a combined connecting structure of flat pipes, and relates to the technical field of cooling pipelines. The heat exchanger comprises a plurality of linearly-distributed flat pipes, two connector ends and a plurality of flow collecting mechanisms, each flow collecting mechanism comprises an upper connecting pipe and a lower connecting pipe, the upper connecting pipes and the lower connecting pipes are connected in a clamped mode through clamping mechanisms, and connecting inserting grooves are formed in the outer sides of the ends, away from the clamping mechanisms, of the upper connecting pipes and the lower connecting pipes. The flow collecting mechanisms are connected to the two ends of the flat pipes in a left-right alternating mode. By means of the design of the flow collecting mechanism, four or more flat pipes can be communicated into a whole to form a snake-shaped channel, only three or more external connectors are needed in total, a one-in-two-out mode or a one-out-two-in mode or other modes can be set according to the use environment, pipeline input and output points can be reduced, connection control is facilitated, and the service life of the pipeline is prolonged. The connector is flexible in arrangement, easy to connect with a battery pack, convenient to transport and package and capable of reducing cost.

Description

Technical Field

[0001] The utility model belongs to the technical field of cooling pipelines, and particularly relates to a combined connection structure of flat tubes. Background Art

[0002] Regarding the combined connection of existing multiple flat tubes, which are composed of four or more flat tubes, the flat tubes form two or more channels, and the ends of the flat tubes are connected with joint ends through rubber-coated parts. Among them, the rubber-coated parts are connected to the joint ends by laser welding or other methods. Since there are many channels, if an integrated flow collecting mechanism is used for connection, it is very difficult to weld multiple rubber-coated flat tubes to the flow collecting mechanism or the cost is too high. It is difficult to package during transportation, and the transportation cost is too high. Content of the Utility Model

[0003] The purpose of the utility model is to provide a combined connection structure of flat tubes. Through the design of the flow collecting mechanism, four or more flat tubes can be connected into one body to form a snake-shaped channel. There are only three or more external interfaces in total, which can be set as one inlet and two outlets, or one outlet and two inlets, or other ways according to the use environment. It can reduce the input and output points of the pipeline, facilitate connection control, the interface setting is flexible, it is easy to connect with the battery pack, and it is convenient for transportation and packaging, reducing costs.

[0004] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0005] The utility model is a combined connection structure of flat tubes, including several linearly distributed flat tubes, two joint ends, and several flow collecting mechanisms;

[0006] The flow collecting mechanism includes an upper connecting pipe and a lower connecting pipe. The upper connecting pipe and the lower connecting pipe are connected by a clamping mechanism. Connection slots are arranged on the outer sides of the ends of the upper connecting pipe and the lower connecting pipe away from the clamping mechanism;

[0007] Several flow collecting mechanisms are connected to both ends of several flat tubes in an alternating left-right manner. One end of two adjacent flat tubes on the same side is connected through a flow collecting mechanism. A snake-shaped channel is formed between several flow collecting mechanisms and several flat tubes;

[0008] The two joint ends are respectively connected to the ends of the flat tubes at both ends of the snake-shaped channel;

[0009] Rubber-coated parts are arranged between the flat tubes and the joint ends, between the flat tubes and the connection slots of the upper connecting pipe, and between the flat tubes and the connection slots of the lower connecting pipe;

[0010] External interfaces are arranged on the outer sides of the joint ends and on the flow collecting mechanisms in the middle of the snake-shaped channel. The external interfaces on the flow collecting mechanisms are connected to the upper connecting pipe, or the lower connecting pipe, or the joint ends.

[0011] Further, the clamping mechanism includes a female connector and a male connector;

[0012] The male connector includes an inner rectangular sleeve, which is integrally connected to the end of the upper connecting pipe. Inner clamping edges are provided on both sides of the inner rectangular sleeve;

[0013] The female connector includes an outer rectangular sleeve, which is integrally connected to the end of the lower connecting pipe. Outer clamping edges are provided on both sides of the end of the outer rectangular sleeve. Limiting bodies are provided on the other two sides of the end of the outer rectangular sleeve, and the limiting bodies do not interfere with the outer clamping edges;

[0014] The inner rectangular sleeve is clamped and connected to the outer rectangular sleeve through the inner clamping edges and the outer clamping edges, and the two sides of the inner rectangular sleeve away from the inner clamping edges are respectively in contact with the two limiting bodies.

[0015] Further, an inner positioning sleeve is integrally connected to one end of the inner rectangular sleeve away from the upper connecting pipe. An inner positioning opening is provided in the outer rectangular sleeve, and the inner positioning sleeve is arranged in the inner positioning opening with a gap.

[0016] Further, a sealing groove is provided on the circumferential surface of the inner positioning sleeve, and a sealing ring is provided between the sealing groove and the inner positioning opening.

[0017] Further, a positioning slope is provided on one side in the inner positioning opening, and a positioning notch matching with the positioning slope is provided on the outer side of the end of the inner positioning sleeve.

[0018] Further, a flange portion is provided at one end of the rubber-coated part, an insertion opening is provided at the other end of the rubber-coated part. Connecting edges matching with the insertion opening are provided on the outer sides of the connecting slot and the joint end. The insertion opening is in contact with the outer side surface of the connecting edge, and the end of the flat tube is fixed in the flange portion.

[0019] The utility model has the following beneficial effects:

[0020] 1. Through the design of the flow collecting mechanism, the utility model can connect four or more flat tubes into one body to form a snake-shaped channel. Only three or more outer interfaces are needed in total, which can be set as one inlet and two outlets or one outlet and two inlets or other ways according to the use environment. It can reduce the pipeline input and output points, is beneficial to connection control, has flexible interface settings, is easy to connect with the battery pack, and is convenient for transportation and packaging, reducing costs.

[0021] 2. The flow collecting mechanism designed by the utility model is of a split type. The upper connecting pipe and the lower connecting pipe are connected to each other through the clamping mechanism, which is beneficial to connection operation, avoids the problem that it is impossible to effectively perform laser welding at the position of the rubber-coated part or the laser welding cost is too high due to the limited space between adjacent two flat tubes, thus avoiding the leakage problem caused by incomplete laser irradiation, and ensuring the sealing performance and stability of the connection part.

[0022] Of course, it is not necessary for any product implementing the present utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can obtain other accompanying drawings based on these drawings without creative efforts.

[0024] Figure 1 Structural schematic diagram of a combined connection structure of a flat tube of the present utility model;

[0025] Figure 2 Structural schematic diagram of the current collecting mechanism;

[0026] Figure 3 Structural schematic diagram of the connection part between the upper connecting pipe and the male joint;

[0027] Figure 4 Structural schematic diagram of the connection part between the lower connecting pipe and the female joint;

[0028] Figure 5 Structural sectional view of the connection part of the clamping mechanism;

[0029] Figure 6 Structural sectional view of the connection part of the clamping mechanism from another perspective;

[0030] Figure 7 Structural schematic diagram of the rubber-coated part;

[0031] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0032] 1 - flat tube, 2 - joint end, 3 - current collecting mechanism, 4 - clamping mechanism, 5 - rubber-coated part, 6 - external interface, 201 - connecting edge, 301 - upper connecting pipe, 302 - lower connecting pipe, 303 - connecting slot, 401 - female joint, 402 - male joint, 403 - inner rectangular sleeve, 404 - inner clamping edge, 405 - outer rectangular sleeve, 406 - outer clamping edge, 407 - limiting body, 408 - inner positioning sleeve, 409 - inner positioning port, 410 - sealing groove, 411 - sealing ring, 412 - positioning slope, 413 - positioning port, 501 - flange part, 502 - embedding port. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0034] Please refer to Figures 1-7 As shown, the present invention is a combined connection structure for flat tubes, including several linearly distributed flat tubes 1, two joint ends 2, and several current collecting mechanisms 3;

[0035] The current collecting mechanism 3 includes an upper connecting pipe 301 and a lower connecting pipe 302. The upper connecting pipe 301 and the lower connecting pipe 302 are connected by a clamping mechanism 4. Connection slots 303 are provided on the outer sides of the ends of the upper connecting pipe 301 and the lower connecting pipe 302 that are far from the clamping mechanism 4;

[0036] Several current collecting mechanisms 3 are connected to both ends of several flat tubes 1 in an alternating left - right manner. One end of two adjacent flat tubes 1 on the same side is connected by the current collecting mechanism 3, and a serpentine channel is formed between several current collecting mechanisms 3 and several flat tubes 1;

[0037] The two joint ends 2 are respectively connected to the ends of the flat tubes 1 at both ends of the serpentine channel;

[0038] Glue - coated parts 5 are provided between the flat tube 1 and the joint end 2, between the flat tube 1 and the connection slot 303 of the upper connecting pipe 301, and between the flat tube 1 and the connection slot 303 of the lower connecting pipe 302. The glue - coated parts 5 are used for connection between each pair;

[0039] External interfaces 6 can be provided on the outer sides of the joint ends 2 and on the current collecting mechanisms 3 in the middle of the serpentine channel as needed. The external interfaces 6 on the current collecting mechanisms 3 are designed according to the coolant inlet and outlet interfaces of the battery pack, and can be provided on the upper connecting pipe 301 or the lower connecting pipe 302 or the joint end 2 as needed.

[0040] Among them, as Figures 2-6 shown, the clamping mechanism 4 includes a female joint 401 and a male joint 402;

[0041] The male joint 402 includes an inner rectangular sleeve 403. The inner rectangular sleeve 403 is integrally connected to the end of the upper connecting pipe 301, and inner clamping edges 404 are provided on both sides of the inner rectangular sleeve 403;

[0042] The female joint 401 includes an outer rectangular sleeve 405. The outer rectangular sleeve 405 is integrally connected to the end of the lower connecting pipe 302. Outer clamping edges 406 are provided on both sides of the end of the outer rectangular sleeve 405, and limiting bodies 407 are provided on the other two sides of the end of the outer rectangular sleeve 405. The limiting bodies 407 do not interfere with the outer clamping edges 406;

[0043] The inner rectangular sleeve 403 is clamped and connected to the outer rectangular sleeve 405 through the inner clamping edge 404 and the outer clamping edge 406. The two sides of the inner rectangular sleeve 403 away from the inner clamping edge 404 are respectively in contact with the two limiting bodies 407.

[0044] As shown in Figures 5-6 the figure, an inner positioning sleeve 408 is integrally connected to one end of the inner rectangular sleeve 403 away from the upper connecting pipe 301. An inner positioning port 409 is provided in the outer rectangular sleeve 405, and the inner positioning sleeve 408 is arranged in the inner positioning port 409 with a gap.

[0045] As shown in Figures 5-6 the figure, a sealing groove 410 is provided on the circumferential side of the inner positioning sleeve 408, and a sealing ring 411 is provided between the sealing groove 410 and the inner positioning port 409.

[0046] As shown in Figure 5 the figure, a positioning slope 412 is provided on one side in the inner positioning port 409, and a positioning notch 413 cooperating with the positioning slope 412 is provided on the outer side of the end of the inner positioning sleeve 408.

[0047] As shown in Figure 7 the figure, one end of the rubber-coated part 5 is provided with a flange part 501, and the other end of the rubber-coated part 5 is provided with an embedding port 502. Connecting edges 201 cooperating with the embedding port 502 are provided on both the connecting slot 303 and the outer side of the joint end 2. The outer side surfaces of the embedding port 502 and the connecting edge 201 are in close contact, and the embedding port 502 and the connecting edge 201 are connected and fixed by welding or other forms. The end of the flat tube 1 is arranged in the flange part 501, and the end of the flat tube 1 is fixed in the flange part 501 by rubber coating.

[0048] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0049] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A flat tube combined connection structure, comprising a plurality of linearly distributed flat tubes (1), characterized in that: It also includes two joint ends (2) and a plurality of current collecting mechanisms (3); The current collecting mechanism (3) comprises an upper pipe (301) and a lower pipe (302), wherein the upper pipe (301) and the lower pipe (302) are connected by a clamping mechanism (4), and a connecting slot (303) is provided on the outer side of one end of the upper pipe (301) and the lower pipe (302) away from the clamping mechanism (4); The plurality of current collecting mechanisms (3) are alternately connected to the two ends of the plurality of flat tubes (1) on the left and right sides, and the ends of the same side of two adjacent flat tubes (1) are connected via the current collecting mechanism (3), so that a serpentine channel is formed between the plurality of current collecting mechanisms (3) and the plurality of flat tubes (1); The two joint ends (2) are respectively connected to the ends of the flat tube (1) at both ends of the serpentine channel; A rubber coating (5) is provided between the flat tube (1) and the joint end (2), between the flat tube (1) and the connection slot (303) of the upper connecting pipe (301), and between the flat tube (1) and the connection slot (303) of the lower connecting pipe (302); External interfaces (6) are provided on the outer side of the joint end (2) and the flow collecting mechanism (3) in the middle of the serpentine channel, and the external interfaces (6) on the flow collecting mechanism (3) are connected to the upper connecting pipe (301) or the lower connecting pipe (302) or the joint end (2).

2. The flat tube combined connection structure according to claim 1, characterized in that: The clamping mechanism (4) comprises a female connector (401) and a male connector (402); The male connector (402) comprises an inner rectangular sleeve (403), the inner rectangular sleeve (403) is integrally connected to the end of the upper pipe (301), and inner clamping edges (404) are provided on both sides of the inner rectangular sleeve (403); The female connector (401) comprises an outer rectangular sleeve (405), the outer rectangular sleeve (405) is integrally connected to the end of the lower pipe (302), both sides of the end of the outer rectangular sleeve (405) are provided with outer clamping edges (406), and the other two sides of the end of the outer rectangular sleeve (405) are provided with limiting bodies (407), and the limiting bodies (407) and the outer clamping edges (406) do not interfere with each other; The inner rectangular sleeve (403) is connected to the outer rectangular sleeve (405) by means of an inner clamping edge (404) and an outer clamping edge (406), and the two sides of the inner rectangular sleeve (403) away from the inner clamping edge (404) are respectively fitted with two limiting bodies (407).

3. The flat tube combined connection structure according to claim 2, characterized in that: An inner positioning sleeve (408) is integrally connected to one end of the inner rectangular sleeve (403) away from the upper pipe (301), an inner positioning opening (409) is provided in the outer rectangular sleeve (405), and a gap of the inner positioning sleeve (408) is arranged in the inner positioning opening (409).

4. The flat tube combined connection structure according to claim 3, characterized in that: A sealing groove (410) is provided on the peripheral side of the inner positioning sleeve (408), and a sealing ring (411) is provided between the sealing groove (410) and the inner positioning opening (409).

5. The flat tube combined connection structure according to claim 4, characterized in that: A positioning slope (412) is provided on one side of the inner positioning opening (409), and a positioning opening (413) matching with the positioning slope (412) is provided on the outer side of the end of the inner positioning sleeve (408).

6. The flat tube combined connection structure according to claim 1, characterized in that: The rubber-coated part (5) is provided with a flange portion (501) at one end, and an embedding opening (502) is provided at the other end of the rubber-coated part (5). The outer sides of the connecting slot (303) and the joint end (2) are both provided with connecting edges (201) that cooperate with the embedding opening (502). The embedding opening (502) is in contact with the outer side surface of the connecting edge (201), and the end of the flat tube (1) is fixed in the flange portion (501).

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