Pressure head fixing structure and welding device

Abstract

The embodiment of the utility model provides a pressure head fixing structure and a welding device, and relates to the technical field of battery module welding. According to the pressure head fixing structure, the pressure head fixing plate is matched with the pressure head through magnetic attraction, so that the pressure head is fastened on the pressure head fixing plate, screws are not needed, the dismounting and mounting processes of the pressure head are simplified, and the replacement efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery module welding technology, and more specifically, to a pressure head fixing structure and welding device. Background Technology

[0002] In the manufacturing of battery modules, it is usually necessary to weld the batteries together to increase the energy density of the entire module. This process requires the use of a welding head, which is pressed against the surface of the battery, and then welded together using laser or other high-energy methods.

[0003] Traditional welding pressure heads are usually made of copper and fixed to the pressure head mounting plate with screws. Since the specifications of the pressure heads used in different projects are not the same, it is very troublesome to disassemble and install the pressure heads when frequently switching between different projects, which affects production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a pressure head fixing structure and welding device, which can simplify the disassembly and installation process of the pressure head and improve replacement efficiency.

[0005] The embodiments of this utility model can be implemented as follows:

[0006] In a first aspect, this utility model provides a pressure head fixing structure, including a pressure head fixing plate and a pressure head, wherein the pressure head fixing plate and the pressure head are magnetically attracted to each other.

[0007] In an optional embodiment, the pressure head fixing structure further includes a first magnetic component and a second magnetic component, wherein the first magnetic component is disposed on the pressure head fixing plate and the second magnetic component is disposed on the pressure head; the first magnetic component and the second magnetic component are attracted to each other.

[0008] In an optional embodiment, the pressure head fixing plate is provided with a first groove, and the first magnetic element is fixed in the first groove; and / or,

[0009] The boss of the pressure head is provided with a second groove, and the second magnetic element is fixed in the second groove.

[0010] In an optional embodiment, the first magnetic component includes a body and a first snap-fit ​​portion, the body being connected to the first snap-fit ​​portion and the body being fixed to the pressure head fixing plate;

[0011] The protrusion of the pressure head is provided with a second locking part, and the first locking part and the second locking part are engaged in a locking fit.

[0012] In an optional embodiment, the number of the first snap-fit ​​portion is two and they are spaced apart; the number of the second snap-fit ​​portion is two and they are spaced apart on both sides of the second groove.

[0013] In an alternative embodiment, the first groove is defined by two protrusions spaced apart on the pressure head fixing plate.

[0014] In an optional embodiment, the pressure head fixing plate is further provided with a locking hole.

[0015] Secondly, this utility model provides a welding device, including a plurality of pressure head fixing structures as described in the first aspect, wherein the plurality of pressure head fixing structures are spaced apart.

[0016] In an optional embodiment, the welding device further includes a pressure head baffle, which is connected to the pressure head fixing plates of the first and last two pressure head fixing structures and is in close contact with the pressure heads of the plurality of pressure head fixing structures.

[0017] In an optional embodiment, the welding device further includes a first mounting head and a second mounting head, which respectively cooperate with both ends of the pressure head stop bar to lock the pressure head stop bar to the pressure head fixing plates of the first and last pressure head fixing structures.

[0018] The beneficial effects of the pressure head fixing structure and welding device provided in this embodiment of the utility model include: the pressure head fixing plate and the pressure head are magnetically coupled, so that the pressure head is fastened to the pressure head fixing plate, thereby eliminating the need for screws, simplifying the disassembly and installation process of the pressure head, and improving the replacement efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of a pressure head fixing structure provided in this embodiment;

[0021] Figure 2 This is a schematic diagram of the components of a pressure head fixing structure provided in this embodiment;

[0022] Figure 3 This is a schematic diagram of a pressure head with a pressure head fixing structure provided in this embodiment;

[0023] Figure 4 This is a schematic diagram of the structure of a welding device provided in this embodiment;

[0024] Figure 5 This is a schematic diagram of the structure of a pressure head stop bar provided in this embodiment.

[0025] Icons: 10-Pressure head fixing plate; 11-First groove; 12-Locking hole; 20-Pressure head; 21-Boss; 22-Second snap-fit ​​part; 30-First magnetic component; 31-Body; 32-First snap-fit ​​part; 40-Second magnetic component; 50-Pressure head stop bar; 60-First mounting head; 70-Second mounting head. Detailed Implementation

[0026] In related technologies, welding devices use screws to fasten the pressure head to the pressure head fixing plate. The disassembly and installation process is cumbersome, the replacement efficiency is low, and it cannot cope with the frequent changes in production projects.

[0027] To address the aforementioned issues, this utility model provides a pressure head fixing structure in which the pressure head fixing plate and the pressure head are magnetically attached, thus securing the pressure head to the pressure head fixing plate without the need for screws. This simplifies the disassembly and installation process of the pressure head and improves replacement efficiency.

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this 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, and therefore should not be construed as a limitation of this utility model.

[0032] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0033] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0034] The following describes in detail the overall structure, working principle, and technical effects of the pressure head fixing structure provided by this utility model through embodiments and in conjunction with the accompanying drawings.

[0035] Please refer to Figure 1 The pressure head fixing structure provided by this utility model includes a pressure head fixing plate 10 and a pressure head 20.

[0036] The pressure head fixing plate 10 and the pressure head 20 are magnetically attracted to each other.

[0037] Optionally, the position on the pressure head fixing plate 10 used to fix and position the pressure head 20 may be magnetic, so that the pressure head fixing plate 10 attracts the pressure head 20.

[0038] As one possible implementation, the pressure head fixing structure also includes a first magnetic element 30, which is disposed on the pressure head fixing plate 10.

[0039] The first magnetic component 30 can be a square magnet, which is set on the pressure head fixing plate 10 to fix and position the pressure head 20. The first magnetic component 30 attracts the metal pressure head 20, so that the pressure head 20 is fixed on the pressure head fixing plate 10.

[0040] Optionally, the position on the pressure head 20 for fixing to the pressure head fixing plate 10 may be magnetic, so that the pressure head 20 can be attracted to the pressure head fixing plate 10.

[0041] As one possible implementation, the pressure head fixing structure also includes a second magnetic element 40, which is disposed on the pressure head 20.

[0042] The second magnetic component 40 can also be a square magnet, which is positioned on the pressure head 20 for fixing to the pressure head fixing plate 10. The second magnetic component 40 attracts the metal pressure head fixing plate 10, thus fixing the pressure head 20 to the pressure head fixing plate 10.

[0043] Optionally, the positions on the pressure head fixing plate 10 for fixing and positioning the pressure head 20, and the positions on the pressure head 20 for fixing to the pressure head fixing plate 10, can both be magnetic.

[0044] As one possible implementation, the pressure head 20 fixing structure also includes a first magnetic element 30 and a second magnetic element 40. The first magnetic element 30 is disposed on the pressure head fixing plate 10, and the second magnetic element 40 is disposed on the pressure head 20. The first magnetic element 30 and the second magnetic element 40 are attracted to each other.

[0045] Both the first magnetic element 30 and the second magnetic element 40 can be square magnets. The first magnetic element 30 is disposed on the pressure head fixing plate 10 to fix and position the pressure head 20, and the second magnetic element 40 is disposed on the pressure head 20 to fix it to the pressure head fixing plate 10. The pressure head 20 is fixed to the pressure head fixing plate 10 by the attraction between the first magnetic element 30 and the second magnetic element 40.

[0046] Furthermore, the pressure head fixing plate 10 may be provided with a first groove 11, and the first magnetic element 30 may be fixed in the first groove 11.

[0047] The first groove 11 is the position on the pressure head fixing plate 10 used to fix and position the pressure head 20. The first magnetic element 30 is fixed in the first groove 11. The first magnetic element 30 can be fixed in the first groove 11 by welding or by screws.

[0048] like Figure 2 As shown, the first groove 11 can be defined by two protrusions spaced apart on the pressure head fixing plate 10.

[0049] The boss 21 of the pressure head 20 may be provided with a second groove, and the second magnetic component 40 may be fixed in the second groove.

[0050] The boss 21 is a position on the pressure head 20 used to fix it to the pressure head fixing plate 10. A second groove can be made on the boss 21, such as... Figure 3 As shown, the second magnetic element 40 is embedded in the boss 21 of the pressure head 20 through the second groove.

[0051] Furthermore, the first magnetic component 30 includes a body 31 and a first engaging portion 32. The body 31 is connected to the first engaging portion 32, and the body 31 is fixed to the pressure head fixing plate 10. The boss 21 of the pressure head 20 is provided with a second engaging portion 22, and the first engaging portion 32 engages with the second engaging portion 22.

[0052] Understandably, when the pressure head 20 is fixed on the pressure head fixing plate 10, the first magnetic element 30 and the second magnetic element 40 attract each other, and the first snap-fit ​​portion 32 on the first magnetic element 30 engages with the second snap-fit ​​portion 22 on the protrusion 21 of the pressure head 20, thereby fixing the pressure head 20 on the pressure head fixing plate 10.

[0053] As one possible implementation, the body 31 of the first magnetic element 30 is fixed to the bottom of the first groove 11, and the first snap-fit ​​portion 32 can be a protrusion on the body 31. The second snap-fit ​​portion 22 can be a hole on the boss 21 of the pressure head 20, the size and shape of which are adapted to the protrusion on the first magnetic element 30.

[0054] Optionally, the number of first latching portions 32 can be two and they are spaced apart, and the number of second latching portions 22 can also be two and they are spaced apart on both sides of the second groove.

[0055] For example, such as Figure 2 As shown, the body 31 of the first magnetic element 30 has two longitudinally spaced protrusions. Figure 3 As shown, there are two longitudinally distributed holes on the boss 21 of the pressure head 20, and the area between the two holes is a second groove into which the second magnetic element 40 is embedded.

[0056] When the pressure head 20 is fixed on the pressure head fixing plate 10, the first magnetic element 30 and the second magnetic element 40 attract each other and the two protruding parts on the body 31 of the first magnetic element 30 are inserted into the two holes on the boss 21 of the pressure head 20, thereby fixing the pressure head 20 on the pressure head fixing plate 10.

[0057] Furthermore, the pressure head fixing plate 10 is also provided with a locking hole 12.

[0058] To prevent the pressure head 20 from shifting or loosening due to vibration or other external forces during welding, and to improve the stability and safety of welding, a locking hole 12 is provided on the pressure head fixing plate 10. The locking hole 12, in conjunction with a fastener, adds a part at the boss 21 of the pressure head 20 to restrict the movement of the pressure head 20.

[0059] Based on the above-described pressure head fixing structure, embodiments of this utility model also provide a welding device, such as... Figure 1 As shown, the welding device includes multiple pressure head fixing structures, which are distributed at intervals.

[0060] To prevent any pressure head 20 from shifting or loosening due to vibration or other external forces during welding, and to improve the stability and safety of welding, the welding device also includes a pressure head baffle 50. The pressure head baffle 50 is connected to the pressure head fixing plate 10 of the first and last pressure head 20 fixing structures and is closely attached to the pressure head 20 of the multiple pressure head 20 fixing structures.

[0061] To facilitate the disassembly and installation of the pressure head 20, as one possible implementation, the welding device may also include a first mounting head 60 and a second mounting head 70. The first mounting head 60 and the second mounting head 70 respectively cooperate with both ends of the pressure head stop strip 50, thereby locking the pressure head stop strip 50 to the pressure head fixing plates 10 of the two pressure head 20 fixing structures at the beginning and end. When the pressure head 20 needs to be replaced, the pressure head stop strip 50 can be removed by removing the first mounting head 60 and the second mounting head 70.

[0062] For example, such as Figure 4 As shown, the first mounting head 60 and the second mounting head 70 can be Torx screws, such as... Figure 5 As shown, the two ends of the baffle of the pressure head 20 may have mounting holes.

[0063] Align the mounting holes at both ends of the pressure head 20 baffle with the locking holes 12 on the pressure head fixing plates 10 of the first and last pressure head 20 fixing structures, and then screw in the first mounting head 60 and the second mounting head 70 respectively, so that the pressure head baffle 50 is locked to the pressure head fixing plates 10 of the first and last pressure head 20 fixing structures and closely attached to the pressure heads 20 of the multiple pressure head fixing structures, thereby preventing each pressure head 20 from shifting or loosening due to vibration or other external forces during the welding process.

[0064] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A pressure head fixing structure, characterized in that, It includes a pressure head fixing plate (10) and a pressure head (20), wherein the pressure head fixing plate (10) and the pressure head (20) are magnetically attracted to each other; The pressure head fixing structure further includes a first magnetic element (30) and a second magnetic element (40). The first magnetic element (30) is disposed on the pressure head fixing plate (10), and the second magnetic element (40) is disposed on the pressure head (20). The first magnetic element (30) and the second magnetic element (40) directly attract each other to realize the detachable fixing of the pressure head (20) on the pressure head fixing plate (10), and do not rely on other mechanical locking structures other than magnetic attraction for position locking.

2. The pressure head fixing structure according to claim 1, characterized in that, The pressure head fixing plate (10) is provided with a first groove (11), and the first magnetic element (30) is fixed in the first groove (11); and / or, The boss (21) of the pressure head (20) is provided with a second groove, and the second magnetic element (40) is fixed in the second groove.

3. The pressure head fixing structure according to claim 1, characterized in that, The first magnetic component (30) includes a body (31) and a first snap-fit ​​part (32). The body (31) is connected to the first snap-fit ​​part (32), and the body (31) is fixed to the pressure head fixing plate (10). The boss (21) of the pressure head (20) is provided with a second snap-fit ​​part (22), and the first snap-fit ​​part (32) engages with the second snap-fit ​​part (22).

4. The pressure head fixing structure according to claim 3, characterized in that, The number of the first snap-fit ​​portion (32) is two and they are spaced apart; the number of the second snap-fit ​​portion (22) is two and they are spaced apart on both sides of the second groove.

5. The pressure head fixing structure according to claim 2, characterized in that, The first groove (11) is defined by two protrusions spaced apart on the pressure head fixing plate (10).

6. The pressure head (20) fixing structure according to claim 1, characterized in that, The pressure head fixing plate (10) is also provided with a locking hole (12).

7. A welding apparatus, characterized in that, It includes multiple pressure head fixing structures as described in any one of claims 1 to 6, wherein the multiple pressure head fixing structures are distributed at intervals.

8. The welding apparatus according to claim 7, characterized in that, The welding device also includes a pressure head baffle (50), which is connected to the pressure head fixing plates (10) of the first and last two pressure head fixing structures and is in close contact with the pressure heads (20) of the multiple pressure head fixing structures.

9. The welding apparatus according to claim 8, characterized in that, The welding device further includes a first mounting head (60) and a second mounting head (70), which respectively cooperate with the two ends of the pressure head stop strip (50) to lock the pressure head stop strip (50) to the two pressure head fixing plates (10) of the first and last pressure head fixing structures.

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