Connection structure of conductive copper heads of cathode and anode conductive beams

Abstract

The utility model provides a connecting structure for conductive copper heads of cathode and anode conductive beams, and relates to the field of connecting structures for conductive copper heads of conductive beams. The connection structure of the cathode and anode conductive beam conductive copper head comprises a pure titanium layer, pure red copper and a conductive copper head A, wherein the pure titanium layer is of a U-shaped structure. The pure red copper is embedded in the pure titanium layer, and one side of the pure red copper close to the opening of the pure titanium layer is provided with a conductive crossbeam copper head embedding port. The conductive copper head A is matched with the conductive cross beam copper head inlaying opening so as to be filled in the conductive cross beam copper head inlaying opening, and the conductive copper head A and the inner wall of the conductive cross beam copper head inlaying opening are welded through laser filler wires. By embedding the conductive copper head A and the pure red copper, the contact surface of the conductive copper head A and the copper head embedding port of the conductive cross beam is increased, and the gap at the joint is welded by the laser filler wire, so that the welding heat is reduced, the area of a heat affected zone is controlled, the problem that the conductive copper head is easy to fall off is solved, and the current passing ability of the conductive cross beam is also improved.

Description

Technical Field

[0001] This application relates to the technical field of the connection structure of the conductive copper head of the conductive beam, and particularly relates to a connection structure of the conductive copper heads of the anode and cathode conductive beams. Background Art

[0002] The existing conductive beam and conductive copper head are welded together by argon arc welding. The thermal induction area of copper welding affects the current passing through the copper material. For example, when the current passes through, the welding position is prone to heat generation, which affects the corrosion resistance of the material itself, resulting in a reduction in the welding strength and firmness, and further causing the conductive copper head to fall off after being collided by natural external forces at the welding position. Utility Model Content

[0003] This application provides a connection structure of the conductive copper heads of the anode and cathode conductive beams to solve the problem of the connection structure of the conductive beam and the conductive copper head.

[0004] This application provides a connection structure of the conductive copper heads of the anode and cathode conductive beams. The connection structure of the conductive copper heads of the anode and cathode conductive beams includes a pure titanium layer, pure red copper, and a conductive copper head A. Among them, the pure titanium layer is set in a U-shaped structure. The pure red copper is embedded in the pure titanium layer, and a conductive crossbeam copper head embedding port is provided on one side of the pure red copper close to the opening of the pure titanium layer. The conductive copper head A is adapted to the conductive crossbeam copper head embedding port to be filled in the conductive crossbeam copper head embedding port, and is laser wire-filled welded with the inner wall of the conductive crossbeam copper head embedding port.

[0005] Preferably, a tin plating layer A is provided on the inner wall of the conductive crossbeam copper head embedding port; a tin plating layer B is provided on the surface of the conductive copper head A; the tin plating layer A and the tin plating layer B are laser wire-filled welded.

[0006] Preferably, the conductive crossbeam copper head embedding port includes a first port and a second port that are connected and communicate with each other. The second port is closer to the opening of the pure titanium layer than the first port. The first port is semi-cylindrical, and the second port is prismatic; the conductive copper head A includes a first part and a second part that are connected. The first part is semi-cylindrical, and the second part is triangular prismatic; the first part is embedded in the first port, and part of the second part is embedded in the second port.

[0007] Preferably, the tin plating layer A includes a first sub-segment and a second sub-segment that are connected. The first sub-segment is configured to be adapted to the first port, and the second sub-segment is configured to be adapted to the second port; the tin plating layer B includes a first segment and a second segment that are connected. The first segment is configured to be adapted to the first part, and the second segment is configured to be adapted to the second part.

[0008] Preferably, an upper insulating layer is inserted on the upper surface of the pure titanium layer, and a lower insulating layer is inserted on the lower surface of the pure titanium layer. Through the setting of the upper insulating layer and the lower insulating layer, the function of insulation is achieved.

[0009] Preferably, protective components are fixedly connected to the surfaces of both the upper insulating layer and the lower insulating layer. The protective components include upper connection layers, upper protective layers, lower protective layers, and lower connection layers. The two upper connection layers are fixedly connected to the surface of the upper insulating layer, and the two lower connection layers are fixedly connected to the surface of the lower insulating layer. The upper connection layers and the lower connection layers facilitate connection. Upper protective layers are fixedly connected to the surfaces of the two upper connection layers, and lower protective layers are fixedly connected to the surfaces of the two lower connection layers. The upper protective layers and the lower protective layers protect the device.

[0010] Preferably, multiple threaded holes are provided on the upper surfaces of the upper connection layers and the lower connection layers. Screws are threadedly connected to the interiors of the multiple threaded holes. The multiple screws connect the upper protective layer and the lower protective layer. The screws connect the upper connection layer and the lower connection layer.

[0011] Preferably, screw washers are inserted into the surfaces of the multiple screws, and nuts are threadedly connected to one ends of the multiple screws. The nuts fasten the screws.

[0012] Preferably, a titanium plate is welded to the end face of the pure titanium layer, and the thickness of the titanium plate is 2 mm.

[0013] Beneficial effects:

[0014] Considering the problem of the connection structure of the conductive copper head of the conductive beam, through the setting of the connection mechanism, a lock riveting and inlaying method is adopted for connection. The gap at the connection is welded with laser wire filling, reducing the welding heat and controlling the area of the heat affected zone. This connection method also increases the contact surface between the conductive copper head A and the inlay opening of the conductive crossbeam copper head. At the same time, after tin plating on the contact surface between the conductive copper head A and the inlay opening of the conductive crossbeam copper head, inlaying and welding are carried out, which not only solves the problem of easy detachment of the conductive copper head but also improves the current passing performance of the conductive crossbeam.

[0015] The above description is only an overview of the technical solutions of the embodiments of the present application. In order to understand the technical means of the embodiments of the present application more clearly, it can be implemented according to the content of the description. In order to make the above and other purposes, features, and advantages of the embodiments of the present application more obvious and understandable, the specific embodiments of the present application are hereinafter specifically exemplified. Brief description of the drawings

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for description in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1This is a schematic structural diagram of the connection structure of the conductive copper heads of the anode and cathode conductive beams of the present utility model.

[0018] Figure 2 This is an exploded view of the connection structure of the conductive copper heads of the anode and cathode conductive beams of the present utility model.

[0019] Figure 3 This is a schematic diagram of the protection component in the connection structure of the conductive copper heads of the anode and cathode conductive beams of the present utility model.

[0020] Figure 4 This is a schematic diagram of the insulating layer of the connection structure of the conductive copper heads of the anode and cathode conductive beams of the present utility model.

[0021] Explanation of reference numerals:

[0022] 1. Pure titanium layer; 2. Pure red copper; 3. Connection mechanism; 301. Embedding port for conductive crossbeam copper head; 302. Conductive copper head A; 4. Upper insulating layer; 5. Lower insulating layer; 6. Protection component; 601. Upper connection layer; 602. Upper protection layer; 603. Lower protection layer; 604. Lower connection layer; 7. Tin plating layer A; 8. Tin plating layer B; 9. Titanium plate; 10. Screw; 11. Screw gasket; 12. Nut. Detailed implementation manners

[0023] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without making creative efforts shall fall within the scope of protection of the present application.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the drawings are intended to cover non-exclusive inclusion.

[0025] Reference to "embodiment" herein means that a particular feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase "embodiment" appearing in various places in the specification is not necessarily referring to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0026] The orientation terms used in the following description are all the directions shown in the figures, and do not limit the specific structure of this application. For example, in the description of this application, terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to this application.

[0027] In the description of this application, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, the "connection" or "coupling" of mechanical structures can refer to a physical connection. For example, a physical connection can be a fixed connection, such as a fixed connection through a fixing member, such as a fixed connection through screws, bolts or other fixing members; a physical connection can also be a detachable connection, such as a snap connection or a snap-fit connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding or integral molding. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] In order to enable those skilled in the art of this technology to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings.

[0029] The embodiment of this application provides a connection structure for the conductive copper head of the anode and cathode conductive beams. As Figures 1-4 shown, the connection structure for the conductive copper head of the anode and cathode conductive beams includes a pure titanium layer 1, a pure copper layer 2, and a conductive copper head A302. Among them, the pure titanium layer 1 is arranged in a U-shaped structure. The pure copper layer 2 is embedded in the pure titanium layer 1, and a conductive crossbeam copper head embedding port 301 is provided on one side of the pure copper layer 2 close to the opening of the pure titanium layer 1. The conductive copper head A302 is adapted to the conductive crossbeam copper head embedding port 301 to be filled in the conductive crossbeam copper head embedding port 301, and is laser wire welded to the inner wall of the conductive crossbeam copper head embedding port 301.

[0030] In this embodiment, by embedding the conductive copper head A302 in the conductive crossbeam copper head embedding port 301 of the pure copper layer 2, the contact area between the conductive copper head A302 and the pure copper layer 2 can be increased, and thus the welding effect between the conductive copper head A302 and the pure copper layer 2 is enhanced.

[0031] Specifically, after opening the conductive crossbar copper head inlay opening 301 on the pure copper 2, the contact area of the pure copper 2 for contacting the conductive copper head A302 is increased. Moreover, when the conductive copper head A302 is adapted to the conductive crossbar copper head inlay opening 301, the contact area of the conductive copper head A302 for contacting the pure copper 2 is also increased. Based on the increase in the contact area between the conductive copper head A302 and the pure copper 2, when welding the contact part of the two, the welding area can also be increased, and furthermore, the welding effect between the two after welding can be improved. Based on the improvement of the welding effect between the conductive copper head A302 and the pure copper 2, the conductive copper head A302 will not fall off from the pure copper 2.

[0032] Among them, when processing the conductive copper head A302 and the pure copper 2, the dimensions of each part of the conductive copper head A302 can be processed to be larger than the dimensions of the corresponding part of the conductive crossbar copper head inlay opening 301, so that the conductive copper head A302 and the pure copper 2 can be connected with interference fit. Specifically, the dimensions of each part of the conductive copper head A302 can exceed the dimensions of the corresponding part of the conductive crossbar copper head inlay opening 301 by 0.027 mm.

[0033] In some embodiments, a tin plating layer A7 is provided on the inner wall of the conductive crossbar copper head inlay opening 301; a tin plating layer B8 is provided on the surface of the conductive copper head A302; the tin plating layer A7 and the tin plating layer B8 are welded by laser wire filling.

[0034] In this embodiment, the conductive copper head A302 and the pure copper 2 can be connected by welding the tin plating layer A7 and the tin plating layer B8. Compared with argon arc welding of copper materials, this tin welding method generates less heat at the welding part when current flows through, which is beneficial to ensuring the performance of the welding part, and further ensuring the reliability of the connection between the conductive copper head A302 and the pure copper 2.

[0035] In some embodiments, the conductive crossbar copper head inlay opening 301 includes a first opening and a second opening that are connected and communicate with each other. The second opening is closer to the opening of the pure titanium layer 1 than the first opening. The first opening is semi-cylindrical, the second opening is prismatic, and the maximum diameter of the first opening is larger than the diameter of the second opening. The conductive copper head A302 includes a first part and a second part that are connected. The first part is semi-cylindrical, and the second part is triangular prism-shaped; the first part is embedded in the first opening, and a part of the second part is embedded in the second opening.

[0036] In this embodiment, the first part of the conductive copper head A302 can enter the inside of the first opening from the end side of the first opening, and the second part of the conductive copper head A302 can enter the inside of the second opening from the end side of the second opening. After the first part of the conductive copper head A302 completely enters the first opening and the second part of the conductive copper head A302 completely enters the second opening, the inner wall of the first opening can restrict the first part of the conductive copper head A302 to prevent the first part of the conductive copper head A302 from coming out of the second opening, further avoiding the conductive copper head A302 from falling off the pure copper 2.

[0037] In some embodiments, the tin plating layer A7 includes a first sub-segment and a second sub-segment connected to each other. The first sub-segment is configured to be adapted to the first opening, and the second sub-segment is configured to be adapted to the second opening. The tin plating layer B8 includes a first segment and a second segment connected to each other. The first segment is configured to be adapted to the first part, and the second segment is configured to be adapted to the second part.

[0038] In this embodiment, the first sub-segment can completely cover the inner wall of the first opening, and the second sub-segment can cover the inner wall of the second opening. The first segment can completely cover the outer wall of the first part, and the second segment can completely cover the outer wall of the second part. In this way, the welding area between the tin plating layer A7 and the tin plating layer B8 can be equal to the contact area between the conductive crossbeam copper head inlay opening 301 and the conductive copper head A302, the welding area between the pure copper 2 and the conductive copper head A302 can reach the maximum, and a more reliable welding can be achieved between the pure copper 2 and the conductive copper head A302.

[0039] In some embodiments, an upper insulating layer 4 is inserted into the upper surface of the pure titanium layer 1, and a lower insulating layer 5 is inserted into the lower surface of the pure titanium layer 1.

[0040] In this embodiment, the upper insulating layer 4 can insulate and isolate the pure titanium layer 1 from external components to avoid short-circuiting between the pure titanium layer 1 and external components.

[0041] Among them, both the upper insulating layer 4 and the lower insulating layer 5 can be made of insulating rubber.

[0042] In some embodiments, a protection component 6 is fixedly connected to the surfaces of both the upper insulating layer 4 and the lower insulating layer 5. The protection component 6 includes an upper connection layer 601, an upper protection layer 602, a lower protection layer 603, and a lower connection layer 604. The two groups of upper connection layers 601 are both fixedly connected to the surface of the upper insulating layer 4, and the two groups of lower connection layers 604 are both fixedly connected to the surface of the lower insulating layer 5.

[0043] In this embodiment, the upper protective layer 602 and the lower protective layer 603 can protect the internal pure titanium layer 1, pure copper layer 2, and conductive copper head A302, preventing external factors from affecting the pure titanium layer 1, pure copper layer 2, and conductive copper head A302 (such as corrosion, etc.), which is beneficial to ensuring the reliability of the connection between the pure copper layer 2 and the conductive copper head A302. The upper connection layer 601 and the lower connection layer 604 can protect the upper protective layer 602 and the lower protective layer 603, preventing the upper protective layer 602 and the lower protective layer 603 from shifting or falling off.

[0044] In some embodiments, multiple sets of threaded holes are provided on the upper surfaces of the upper connection layer 601 and the lower connection layer 604. Multiple sets of screws 10 are threadedly connected inside the multiple sets of threaded holes, and the multiple sets of screws 10 connect the upper protective layer 602 and the lower protective layer 603.

[0045] In this embodiment, the upper connection layer 601 and the lower connection layer 604 can be connected by the screws 10 to prevent the upper connection layer 601 and the lower connection layer 604 from loosening.

[0046] In some embodiments, screw washers 11 are inserted on the surfaces of the multiple sets of screws 10, and nuts 12 are threadedly connected to one ends of the multiple sets of screws 10.

[0047] In this embodiment, the nut 12 can assist in tightening the screw 10 to further prevent the upper connection layer 601 and the lower connection layer 604 from loosening. The screw washer 11 can prevent the screw 10 from damaging the upper connection layer 601.

[0048] In some embodiments, a titanium plate 9 is welded to the end face of the pure titanium layer 1, and the thickness of the titanium plate 9 is 2 mm.

[0049] In this embodiment, the titanium plate 9 can protect the pure copper layer 2 and the conductive copper head A302 on the end face of the pure titanium layer 1 to prevent the pure copper layer 2 and the conductive copper head A302 from being damaged by external factors.

[0050] Based on the foregoing structure, the processing process of the connection structure of the conductive copper head of the anode and cathode conductive beams in the embodiment of the present application includes:

[0051] S1. Obtain a cuboid-shaped pure copper layer 2 with a predetermined size.

[0052] S2. Process a conductive crossbeam copper head embedding port 301 on the pure copper layer 2.

[0053] Among them, the processing method of the copper head inlay opening 301 of the conductive crossbeam specifically includes: S11. Use a numerical control lathe to drill a first opening at the 2 / 3 position in the height direction of the pure copper 2, and ensure that the dimension of the first opening in the length direction is equal to the length of the first part of the conductive copper head A302. S12. Continue to use a numerical control lathe to turn a second opening communicating with the first opening at the bottom in the height direction of the pure copper 2, and ensure that the dimension of the second opening in the length direction is equal to the length of the second part of the conductive copper head A302. S13. Continue to use a numerical control lathe to process the outer surface of the pure copper 2 so that the dimension of the pure copper 2 is the same as the dimension inside the pure titanium layer 1.

[0054] S3. Process the conductive copper head A302.

[0055] Among them, the processing method of the conductive copper head A302 specifically includes: S21. Process the outer wall of the conductive copper head A302 so that the dimensions of each part of the first part and the second part exceed the corresponding part dimensions of the pure copper 2 by 0.027 mm. S22. Treat the oil stain on the surface of the conductive copper head A302.

[0056] S4. Electroplate a tin plating layer A7 on the inner wall of the copper head inlay opening 301 of the conductive crossbeam, and electroplate a tin plating layer B8 on the outer wall of the conductive copper head A302.

[0057] S5. Use a press to press the conductive copper head A302 into the inside of the copper head inlay opening 301 of the conductive crossbeam from the end face of the copper head inlay opening 301, and use laser filler wire welding to seal the connection gap between the pure copper 2 and the conductive copper head A302.

[0058] S6. Seal and weld a titanium plate 9 on the end face of the copper head inlay opening 301 of the conductive crossbeam.

[0059] S7. Weld the pure titanium layer 1 to the outer walls of the pure copper 2 and the conductive copper head A302.

[0060] S8. Plug an insulating layer 4 on the upper surface of the pure titanium layer 1, and plug a lower insulating layer 5 on the lower surface of the pure titanium layer 1.

[0061] S9. Wrap the upper protective layer 602 and the lower protective layer 603 outside the pure titanium layer 1, and connect the upper connecting layer 601 and the lower connecting layer 604 through screws 10, screw washers 11 and nuts 12.

[0062] As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present application.

Claims

1. A connection structure for the conductive copper head of the cathode and anode conductive beams, characterized in that, Comprising: A pure titanium layer (1), configured as a U-shaped structure; Pure red copper (2), embedded in the pure titanium layer (1), and a conductive crossbeam copper head inlay opening (301) is provided on one side of the pure red copper (2) close to the opening of the pure titanium layer (1); A conductive copper head A (302), adapted to the conductive crossbeam copper head inlay opening (301) to be filled in the conductive crossbeam copper head inlay opening (301), and laser wire filling welding is performed with the inner wall of the conductive crossbeam copper head inlay opening (301).

2. The connection structure of the conductive copper head of the anode and cathode conductive beams according to claim 1, characterized in that: A tin plating layer A (7) is provided on the inner wall of the conductive crossbeam copper head inlay opening (301); A tin plating layer B (8) is provided on the surface of the conductive copper head A (302); The tin plating layer A (7) and the tin plating layer B (8) are laser wire filling welded.

3. The connection structure of the conductive copper head of the anode and cathode conductive beams according to claim 2, characterized in that: The conductive crossbeam copper head inlay opening (301) includes a first opening and a second opening that are connected and communicate with each other. The second opening is closer to the opening of the pure titanium layer (1) than the first opening. The first opening is semi-cylindrical, the second opening is prismatic, and the maximum diameter of the first opening is larger than the diameter of the second opening; The conductive copper head A (302) includes a first part and a second part that are connected. The first part is semi-cylindrical, and the second part is triangular prismatic; The first part is embedded in the first opening, and a part of the second part is embedded in the second opening.

4. The connection structure of the conductive copper head of the anode and cathode conductive beams according to claim 3, characterized in that: The tin plating layer A (7) includes a first sub-segment and a second sub-segment that are connected. The first sub-segment is configured to be adapted to the first opening, and the second sub-segment is configured to be adapted to the second opening; The tin plating layer B (8) includes a first segment and a second segment that are connected. The first segment is configured to be adapted to the first part, and the second segment is configured to be adapted to the second part.

5. The connection structure of the conductive copper head of the anode and cathode conductive beams according to claim 1, wherein: An upper insulating layer (4) is inserted on the upper surface of the pure titanium layer (1), and a lower insulating layer (5) is inserted on the lower surface of the pure titanium layer (1).

6. The connection structure of the conductive copper head of the anode and cathode conductive beams according to claim 5, characterized in that: Protection components (6) are fixedly connected to the surfaces of the upper insulating layer (4) and the lower insulating layer (5). The protection components (6) include an upper connection layer (601), an upper protection layer (602), a lower protection layer (603), and a lower connection layer (604); Two groups of the upper connection layers (601) are fixedly connected to the surface of the upper insulating layer (4); two groups of the lower connection layers (604) are fixedly connected to the surface of the lower insulating layer (5); upper protection layers (602) are fixedly connected to the surfaces of the two groups of the upper connection layers (601); lower protection layers (603) are fixedly connected to the surfaces of the two groups of the lower connection layers (604).

7. The connection structure of the conductive copper head of the anode and cathode conductive beams according to claim 6, wherein: The upper surfaces of the upper connection layer (601) and the lower connection layer (604) are both provided with multiple groups of threaded holes, and screws (10) are threadedly connected inside the multiple groups of threaded holes. The multiple groups of screws (10) connect the upper protective layer (602) and the lower protective layer (603).

8. The connection structure of the conductive copper head of the anode and cathode conductive beams according to claim 7, characterized in that: Screw washers (11) are inserted on the surfaces of the multiple groups of screws (10), and nuts (12) are threadedly connected to one ends of the multiple groups of screws (10).

9. The connection structure of the conductive copper head of the anode and cathode conductive beams according to any one of claims 1 to 8, characterized in that: A titanium plate (9) is welded to the end face of the pure titanium layer (1), and the thickness of the titanium plate (9) is 2 mm.

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