Liquid-cooled conductive device

Abstract

The utility model discloses a liquid-cooled conductive device, comprising a conducting bar, a metal plate and a plug assembly, two sides of the metal plate are provided with bending portions, the bending portions are welded with the conducting bar, a liquid-cooled channel is formed between the metal plate and the conducting bar, cooling liquid can flow in the liquid-cooled channel, and the plug assembly is connected with the metal plate. The plug assemblies are arranged at the two ends of the liquid cooling channel in a sealed mode respectively and used for limiting circulation of cooling liquid. The device is simple in structure, suitable for large-scale production and manufacturing and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical connection, and more specifically, to a liquid-cooled conductive device. Background Art

[0002] With the continuous development of the new energy vehicle industry, automotive electrical appliances and other control systems are also continuously developing towards refined functions, complex structures, and diversification, making the conductive busbar run through the vehicle body. A large amount of heat will be generated during the normal use of the conductor. When the heat is too large, it is easy to cause the conductor and the surrounding connectors and fixing parts to fail due to the influence of high temperature, thus affecting the normal use of various electrical devices in the vehicle and even causing accidents such as vehicle fires.

[0003] Therefore, a new conductive device is needed to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a liquid-cooled conductive device, which includes a conductive busbar, a metal plate, and a plug head assembly. Bending parts are arranged on both sides of the metal plate, and the bending parts are welded to the conductive busbar. A liquid-cooling channel is formed between the metal plate and the conductive busbar, and a coolant can flow in the liquid-cooling channel. The plug head assembly is respectively and sealingly arranged at both ends of the liquid-cooling channel to restrict the flow of the coolant.

[0005] Optionally, the plug head assembly is provided with a liquid inlet and / or a liquid outlet.

[0006] Optionally, the plug head assembly includes a plug head body. An annular insertion arm matching the shape of the end of the metal plate is arranged on the plug head body. An insertion cavity is formed between the plug head body and the insertion arm. Both ends of the metal plate are arranged in the insertion cavity, and the plug head assembly is in interference fit with the conductive busbar and the metal plate respectively.

[0007] Optionally, the outer periphery of the plug head body is also coated with sealing rubber.

[0008] Optionally, an insulating coating is arranged on the inner wall of the liquid-cooling channel.

[0009] Optionally, a clamping groove is arranged on the insertion arm, and a card matching the clamping groove is arranged on the metal plate. The clamping groove and the card are clamped and fixed.

[0010] Optionally, the two bending parts are respectively located in different planes of the conductive busbar.

[0011] Optionally, along the extending direction of the conductive busbar, a plurality of process positioning grooves are arranged at the joint of the conductive busbar and the metal plate.

[0012] Optionally, the bent portion is further extended and connected with a welding portion, and the welding portion fits on the surface of the conductive busbar and is welded to the conductive busbar.

[0013] Optionally, the width of the liquid cooling channel is smaller than the width of the conductive busbar.

[0014] The utility model has the following technical effects:

[0015] The present invention relates to a water-cooled conductive busbar, which uses a metal plate stamping part and the conductive busbar to be welded to form a liquid cooling channel, and both ends of the liquid cooling channel are sealed by a plastic plug assembly. Since the conductive busbar itself is a part of the liquid cooling channel and the coolant flows in the liquid cooling channel to cool the conductive busbar, the cooling effect is good and the cooling efficiency is high. The structure of the present invention is simple, suitable for large-scale production and manufacturing, and has high practicability.

[0016] In addition, the welding process is adopted between the metal plate and the conductive busbar, and the liquid cooling channel can be designed to follow the shape of the conductive busbar. At the same time, the metal plate itself as the housing of the liquid cooling channel can also reduce the loop resistance and increase the current load.

[0017] Other features and advantages of the present invention will become clear through the following detailed description of the exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings incorporated in the specification and constituting a part of the specification illustrate embodiments of the present invention and, together with the description, are used to explain the principles of the present invention.

[0019] Figure 1 is a schematic diagram of the overall structure of the novel liquid-cooled conductive device;

[0020] Figure 2 is a schematic diagram of the matching structure of the novel plug assembly and the metal plate;

[0021] Figure 3 is a side view of the matching of the plug assembly and the metal plate;

[0022] Figure 4 is a schematic diagram of the overall structure of the cooperation of the conductive busbar, the metal plate and the conductive busbar;

[0023] Figure 5 is Figure 1 a cross-sectional view taken along line A-A in

[0024] Figure 6 is a structural cross-sectional view of another embodiment of the connection between the metal plate and the conductive busbar.

[0025] The labels in the figures are as follows:

[0026] 10. Conductive busbar; 20. Metal plate; 30. Plug head assembly; 40. Sealing rubber; 50. Insulating layer; 60. Liquid cooling channel;

[0027] 310. Liquid inlet; 320. Plug head body; 330. Insertion arm; 340. Insertion cavity; 331. Card slot; 220. Card; 230. Positioning slot; 240. Welding part. Detailed implementation manners

[0028] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and values set forth in these embodiments do not limit the scope of the present invention.

[0029] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way serves as a limitation to the present invention and its application or use.

[0030] Techniques, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods, and devices should be regarded as part of the specification.

[0031] In all the examples shown and discussed herein, any specific values should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values.

[0032] As Figures 1-6 shown, the liquid-cooled conductive device includes a conductive busbar 10, a metal plate 20, and a plug head assembly 30. Both sides of the metal plate 20 are provided with bent portions, and the bent portions are welded to the conductive busbar 10. A liquid cooling channel 60 is formed between the metal plate 20 and the conductive busbar 10, and a coolant can flow in the liquid cooling channel 60. The plug head assemblies 30 are respectively and sealingly arranged at both ends of the liquid cooling channel 60 to restrict the flow of the coolant.

[0033] The present invention is a water-cooled conductive busbar 10. A liquid cooling channel 60 is formed by welding a stamping part of a metal plate 20 and the conductive busbar 10, and both ends of the liquid cooling channel 60 are sealed by plastic plug head assemblies 30. Since the conductive busbar 10 itself is a component of the liquid cooling channel 60 and a coolant flows in the liquid cooling channel 60 to cool the conductive busbar 10, the cooling effect is good and the cooling efficiency is high. The structure of the present invention is simple, suitable for large-scale production and manufacturing, and has high practicability.

[0034] In addition, a welding process is adopted between the metal plate 20 and the conductive busbar 10, and the liquid cooling channel 60 can be designed to follow the shape of the conductive busbar 10. At the same time, as the housing of the liquid cooling channel 60 itself, the metal plate 20 can also reduce the loop resistance and increase the current load.

[0035] Further, a liquid inlet 310 and / or a liquid outlet are provided on the plug assembly 30 for circulating the cooling liquid, and the liquid inlet 310 and / or the liquid outlet are arranged at the end of the metal plate 20, which is more convenient for installation and later maintenance.

[0036] As Figures 2-4 shown, the plug assembly 30 includes a plug body 320, the shape of the plug body 320 is matched with the cross-sectional shape of the liquid cooling channel 60, an annular insertion arm 330 matched with the shape of the end of the metal plate 20 is arranged on the plug body 320, an insertion cavity 340 is formed between the plug body 320 and the insertion arm 330, both ends of the metal plate 20 are arranged in the insertion cavity 340, and the plug assembly 30 is in interference fit with the conductive bar 10 and the metal plate 20 respectively, ensuring the sealing performance between the plug body 320, the metal plate 20 and the conductive bar 10.

[0037] In one embodiment, in order to increase the sealing performance, a sealing rubber 40 is further coated on the outer periphery of the plug body 320.

[0038] Further, in order to insulate the coolant from the metal plate 20 and the conductive bar 10, an insulating coating is provided on the inner wall of the liquid cooling channel 60.

[0039] As Figure 4 shown, after the plug assembly is connected and matched with the conductive bar 10 and the metal plate 20, an insulating layer 50 is coated on the outer periphery, playing an insulating role.

[0040] In one embodiment, as Figure 2 shown, in order to ensure the stability of the connection between the plug assembly 30 and the metal plate 20, a card slot 331 is provided on the insertion arm 330, a card 220 matched with the card slot 331 is provided on the metal plate 20, and the card slot 331 is fixedly connected with the card 220 by clamping.

[0041] As Figure 1 and Figure 2 shown, along the extending direction of the conductive bar 10, a plurality of process positioning grooves 230 are provided at the joint of the conductive bar 10 and the metal plate 20, and the metal plate 20 and the conductive bar 10 are provided with unified process positioning grooves 230, which is convenient for positioning during the fixed welding process of the two.

[0042] As Figure 5 shown, the bent portion is further extended and connected with a welding portion 240, the welding portion 240 fits on the surface of the conductive bar 10 and is welded to the conductive bar 10, increasing the welding area and making the welding more firm.

[0043] In one embodiment, the width of the liquid cooling channel 60 is smaller than the width of the bus bar 10.

[0044] As Figure 5 shown, the bent portions on both sides of the metal plate 20 are located on the same side of the bus bar 10; in another embodiment, as Figure 6 shown, the two bent portions are respectively located on different planes of the bus bar 10. In this way, the contact area between the coolant and the bus bar 10 is increased, and the heat dissipation effect is better.

[0045] Although some specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and not for limiting the scope of the present invention. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A liquid-cooled conductive device, characterized in that: Including conductive bar, metal plate, and plug assembly, The metal plate has bending parts on both sides, and the bending parts are welded to the conductive bar. A liquid cooling channel is formed between the metal plate and the conductive bar, and a cooling liquid can flow in the liquid cooling channel. The plug assembly is respectively and sealingly arranged at both ends of the liquid cooling channel to limit the circulation of the cooling liquid.

2. The liquid-cooled conductive device according to claim 1, characterized in that: The plug assembly is provided with a liquid inlet and / or a liquid outlet.

3. The liquid-cooled conductive device according to claim 1, characterized in that: The plug assembly includes a plug body, on which is disposed an annular plug arm matching the shape of the end of the metal plate, a plug cavity is formed between the plug body and the plug arm, both ends of the metal plate are disposed in the plug cavity, and the plug assembly is interference fit with the conductive bar and the metal plate respectively.

4. The liquid-cooled conductive device according to claim 3, characterized in that: The outer periphery of the plug body is also covered with sealing rubber.

5. The liquid-cooled conductive device according to claim 1, characterized in that: An insulating coating is provided on the inner wall of the liquid cooling channel.

6. The liquid-cooled conductive device according to claim 3, characterized in that: A card slot is arranged on the plug-in arm, a card matching the card slot is arranged on the metal plate, and the card slot is fixedly connected with the card.

7. The liquid-cooled conductive device according to claim 1, characterized in that: The two bending portions are respectively located on different planes of the conductive bar.

8. The liquid-cooled conductive device according to claim 1, characterized in that: Along the extending direction of the conductive bar, a plurality of process positioning grooves are arranged at the joint between the conductive bar and the metal plate.

9. The liquid-cooled conductive device according to claim 1, characterized in that: The bending portion is further extended to be connected with a welding portion, and the welding portion is attached to the surface of the conductive bar and is welded to the conductive bar.

10. The liquid-cooled conductive device according to claim 1, characterized in that: The width of the liquid cooling channel is smaller than the width of the conductive bar.

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