Welding installation tool for battery cover plate component

Abstract

The utility model discloses a battery cover plate component welding installation tool which comprises a base, a cover plate limiting frame and a battery cell limiting frame, a bearing plate of the battery cell limiting frame and the cover plate limiting frame are arranged in a relatively inclined mode, and therefore a certain inclined angle is formed between a battery cell placed on the bearing plate and a cover plate. The tabs of the battery cell can enable the connecting pieces connected with the tabs to be in contact with the surface of the cover plate without reserving a relatively long length, so that the space utilization rate of the whole battery can be effectively improved, and the energy density of the battery is increased. The battery cell is obliquely arranged, so that the connecting piece is not easy to pull upwards by the tab, the stable contact between the connecting piece and the surface of the cover plate can be ensured, and the welding quality can be improved. The temperature detection device can monitor temperature data of the connecting piece and the pole in the welding process in time, welding power is adjusted in time by detecting the temperature data, the connecting piece and / or the pole are / is prevented from being damaged due to the fact that the welding temperature is too high, welding potential safety hazards can be effectively reduced, and the yield of battery manufacturing is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing, in particular to a welding and installation tool for battery cover components. Background Art

[0002] The battery can be applied to household appliances, industrial robots and electric transportation equipment. The battery generally includes battery shell, battery core, electrolyte, cover plate and other components. In the manufacturing and assembly process of the battery, the tab 201 of the battery core 200 and the connecting piece 101 are usually fixed together by ultrasonic welding, and then the connecting piece 101 is mechanically connected to the pole 102 of the cover plate 100 by welding to achieve the function of current conduction.

[0003] like Figure 1 As shown, the conventional welding fixture currently only simply positions the cover plate 100 and the battery cell 200. The battery cell 200 and the cover plate 100 are arranged roughly horizontally in the welding fixture. Therefore, the tab 201 of the battery cell 200 needs to be sufficiently long so that the connecting piece 101 welded with the tab 201 can contact the surface of the cover plate 100, so as to facilitate stable welding. As a result, after the battery cell 100 is assembled, it will occupy a certain space of the entire battery, making the overall energy density of the battery low. However, the tab 201 may still pull the connecting piece 101, making the surface contact between the connecting piece 101 and the cover plate 100 unstable (there is a gap easily), which will affect the welding quality.

[0004] In addition, the temperature change of the pole 102 of the cover plate 100 cannot be detected during the welding process. When the welding temperature is too high, there may be a risk of damaging the connecting piece 101 and / or the pole 102 . Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a welding and installation tool for battery cover components.

[0006] The technical solution adopted by the utility model to solve the technical problem is: construct a battery cover component welding and installation tool, including a base, a cover limit frame, and a battery cell limit frame;

[0007] The cover plate limiting frame is installed on the base, and the upper surface of the cover plate limiting frame is provided with a cover plate bearing position for bearing and limiting the cover plate; the cover plate limiting frame is provided with a temperature detection device, and the temperature detection device is used to detect the welding temperature of the pole of the cover plate;

[0008] The battery cell limiting frame is installed on the base, and the battery cell limiting frame includes a bearing plate, and the bearing plate and the cover plate limiting frame are arranged relatively tilted, and the upper surface of the bearing plate is provided with a battery cell bearing position for bearing and limiting the battery cell.

[0009] In some embodiments, a limiting wall extends upward from the periphery of the upper surface of the cover plate limiting frame;

[0010] The upper surface of the cover plate limiting frame and the limiting wall jointly define the cover plate bearing position.

[0011] In some embodiments, at least two receiving grooves are recessed on the upper surface of the cover plate limiting frame, and at least two of the receiving grooves are arranged at intervals to receive the pole;

[0012] The temperature detection device is arranged in the containing tank to monitor the temperature of the pole.

[0013] In some embodiments, the circumferential side wall of the cover plate limiting frame is further provided with a plurality of threading holes, and the threading holes are communicated with the inner cavity of the accommodating groove for the cables of the temperature detection device to be passed through.

[0014] In some embodiments, a limiting groove is provided on the base, and the cover limiting frame is installed in the limiting groove.

[0015] In some embodiments, limiting convex edges are respectively provided on both sides of the width direction of the upper surface of the carrying plate, and the upper surface of the carrying plate and the limiting convex edges define the battery cell carrying position.

[0016] In some embodiments, the battery cell limiting frame includes a bottom plate, a support plate and the carrying plate;

[0017] The bottom plate is used to be connected to the base, the lower end of the support plate is connected to the bottom plate, and the upper end of the bearing plate is connected to the lower end of the bearing plate.

[0018] In some embodiments, the bottom plate is movably mounted on the base;

[0019] Wherein, the base is provided with a plurality of sliding grooves, and the sliding grooves are extended along the length direction of the base;

[0020] The bottom plate is provided with a plurality of limiting holes, and the limiting holes are arranged opposite to the sliding grooves;

[0021] The battery cover component welding and installation tool also includes a fastener, which is used to penetrate the limiting hole and be installed in the sliding groove to fix the bottom plate on the base.

[0022] In some embodiments, the number of the battery cell limiting frames is two, and the two battery cell limiting frames are symmetrically arranged on both sides of the cover plate limiting frame.

[0023] In some embodiments, the angle formed by the plane where the battery cell supporting position is located and the plane where the cover plate supporting position is located is 5° to 75°.

[0024] The implementation of the utility model has the following beneficial effects: the battery cover plate component welding installation tool includes a base, a cover plate limit frame, and a battery cell limit frame. The load plate of the battery cell limit frame and the cover plate limit frame are relatively tilted, so that the battery cell placed on the load plate and the cover plate are at a certain tilt angle. The pole ear of the battery cell does not need to reserve a long length so that the connecting piece connected to the pole ear can contact the surface of the cover plate, which can effectively shorten the distance between the battery cell and the cover plate, and can effectively improve the space utilization rate of the entire battery, thereby increasing the energy density of the battery. In addition, the battery cell is placed at an angle, so that the connecting piece is not easily pulled upward by the pole ear, which can ensure that the connecting piece and the surface of the cover plate are in stable contact with each other, and can improve the welding quality.

[0025] Furthermore, the cover plate limit frame is provided with a temperature detection device to timely monitor the temperature data of the connecting piece and the pole during the welding process. By detecting the temperature data, the welding power can be adjusted in time to avoid damage to the connecting piece and / or the pole due to excessively high welding temperature, which can effectively reduce welding safety hazards and improve the yield rate of battery manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solution of the utility model, the utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show certain embodiments of the utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0027] Figure 1 It is a structural schematic diagram of welding the battery cell tab and the cover plate in the related art;

[0028] Figure 2 It is a structural schematic diagram of a welding and installation tool for a battery cover component in some embodiments of the utility model;

[0029] Figure 3 It is a schematic diagram of the application of the battery cover component welding and installation tooling in some embodiments of the utility model at a certain viewing angle;

[0030] Figure 4 is a schematic diagram of the application of the battery cover component welding and installation tooling in some embodiments of the utility model from another perspective;

[0031] Figure 5 is a schematic diagram of the application of the battery cover component welding and installation tooling in some embodiments of the utility model from another perspective;

[0032] Figure 6 yes Figure 3 Exploded diagram of

[0033] Figure 7 It is a schematic diagram of the structure of the cover plate in some embodiments of the utility model. DETAILED DESCRIPTION

[0034] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation methods of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0035] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. can explicitly or implicitly include one or more of the features. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0036] In the following description, specific details such as specific system structures and technologies are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details that hinder the description of the present invention.

[0037] See also Figures 2 to 6The utility model shows a battery cover component welding and installation tool, which can provide positioning and limiting for the cover 100 and the battery cell 200, so as to facilitate the welding and fixing of the connecting piece 101 welded and fixed to the pole ear 201 of the battery cell 200 and the pole 102 of the cover 100. The battery cell 200 can include but is not limited to a square aluminum shell battery cell, and the battery cell 200 can also be defined as a "winding core 200" in some embodiments.

[0038] Continue reading Figures 2 to 6 In some embodiments, the battery cover component welding and installation tool may include a base 10, a cover limit frame 20, and a battery cell limit frame 30.

[0039] The cover plate limiting frame 20 is installed on the base 10, and the upper surface of the cover plate limiting frame 20 is provided with a cover plate bearing position 20a for bearing and limiting the cover plate 100; the cover plate limiting frame 20 is provided with a temperature detection device 40, and the temperature detection device 40 is used to detect the welding temperature of the pole 102 of the cover plate 100.

[0040] The cell limiting frame 30 is installed on the base 10 and includes a supporting plate 33 . The supporting plate 33 and the cover limiting frame 20 are arranged to be inclined relative to each other. The upper surface of the supporting plate 33 is provided with a cell supporting position 33 a for supporting and limiting the cell 200 .

[0041] Furthermore, if Figure 5 As shown, the angle θ formed by the plane where the cell bearing position 33a is located and the plane where the cover plate bearing position 20a is located is 5° to 75°. Preferably, the angle θ formed by the plane where the cell bearing position 33a is located and the plane where the cover plate bearing position 20a is located is 20°-70°. For example, the angle θ formed by the plane where the cell bearing position 33a is located and the plane where the cover plate bearing position 20a is located can be 30°, 35°, 40°, 45°, 50°, 55°, 60°, 65°. The larger the angle θ, the shorter the reserved length of the tab 201.

[0042] Understandably, the carrier plate 33 and the cover plate limiting frame 20 are relatively tilted, so that the battery cell 200 placed on the carrier plate 33 and the cover plate 100 are at a certain tilt angle, and the pole ear 201 of the battery cell 200 does not need to reserve a long length so that the connecting piece 101 connected to the pole ear 201 can contact the surface of the cover plate 100, which can effectively shorten the distance between the battery cell 200 and the cover plate 100, and can effectively improve the space utilization of the entire battery, thereby increasing the energy density of the battery. In addition, the battery cell 200 is tilted, so that the connecting piece 101 is not easily pulled upward by the pole ear 201, which can ensure that the connecting piece 101 and the surface of the cover plate 100 are in stable contact with each other, and can improve the welding quality.

[0043] The temperature detection device 40 can timely monitor the temperature data of the connecting piece 101 and the cover plate 100 during the welding process. By detecting the temperature data, the welding power can be adjusted in time to avoid excessively high welding temperature from damaging components of the cover plate 100 such as the connecting piece 101 and / or the pole 102, etc., thereby effectively reducing welding safety hazards and improving the yield rate of battery manufacturing.

[0044] See also Figure 6 In some embodiments, the cover plate limiting frame 20 may be a roughly plate-shaped structure or a frame structure. Preferably, the cover plate limiting frame 20 is roughly a square plate-shaped structure, and a limiting wall 21 extends upward from the circumference of the upper surface of the cover plate limiting frame 20. The limiting wall 21 may be a ring-shaped structure. The upper surface of the cover plate limiting frame 20 and the limiting wall 21 may jointly define a cover plate bearing position 20a. It can be understood that the cover plate bearing position 20a may be roughly a groove structure. The upper surface of the cover plate limiting frame 20 is used to bear the cover plate 100, and the limiting wall 21 may limit the cover plate 100 circumferentially.

[0045] The height dimension of the limiting wall 21 may be greater than or equal to the thickness dimension of the cover plate 100, so as to better limit the position of the cover plate 100. Of course, in other embodiments, the height dimension of the limiting wall 21 may be less than the thickness dimension of the cover plate 100, and its dimension may be selected according to actual needs, and is not specifically limited here.

[0046] In some embodiments, the upper surface of the cover plate limiting frame 20 is concavely provided with at least two receiving grooves 22, and the at least two receiving grooves 22 are arranged at intervals to receive the pole 102 of the cover plate 100 (which can be combined with Figure 7 As shown in the figure, the pole 102 is prefabricated on the cover plate 100. The temperature detection device 40 can be arranged in the receiving groove 22 to monitor the temperature of the pole 102. The temperature detection device 40 can be fixed in the receiving groove 22 of the cover plate limit frame 20, or can be detachably installed in the receiving groove 22 of the cover plate limit frame 20, which is not specifically limited here. In addition, one or more temperature detection devices 40 can be arranged in each receiving groove 22, which is not specifically limited here.

[0047] The temperature detection device 40 can monitor the welding temperature between the connecting piece 101 and the pole 102, and can adjust the welding power according to the welding temperature. In addition, the temperature detection device 40 is arranged in the receiving groove 22, which is easy to install and manufacture, and can ensure the simplicity of the entire cover plate limit frame 20.

[0048] In some embodiments, the temperature detection device 40 may use a temperature sensor, which may include but is not limited to a thermocouple, a thermal resistor, and a thermistor. Preferably, the structure of the probe / probe of the temperature sensor may be a spring or other retractable mechanism, preferably a spring retractable mechanism, which can achieve a tight connection between the cover plate 100 and the probe / probe after contact, and achieve real-time data collection and feedback.

[0049] In some embodiments, the circumferential side wall of the cover plate limit frame 20 is also provided with a plurality of threading holes 23, which are connected to the inner cavity of the accommodating groove 22 for the cable of the temperature detection device 40 to be passed through. The cable can be connected to the control terminal, and the temperature detection device 40 transmits temperature data to the control terminal through the cable.

[0050] For example, the cover plate limit frame 20 is provided with the threading hole 23 on the circumferential side wall which is not arranged opposite to the battery cell limit frame 30, thereby avoiding interference with the structure of the battery cell limit frame 30. Of course, the cover plate limit frame 20 can also be provided with the threading hole 23 on the circumferential side wall which is arranged opposite to the battery cell limit frame 30, and the battery cell limit frame 30 can be provided with a wiring hole 321 (such as Figure 6 As shown), the wiring hole 321 is arranged to be relatively connected with the threading hole 23.

[0051] The control device may include but is not limited to a computer, a laptop, a tablet computer, a PLC industrial computer or other terminals, and the control device may be an existing device. Of course, the temperature detection device 40 may also transmit temperature data wirelessly.

[0052] In some embodiments, the battery cover component welding and installation tool may also include an early warning device connected to the temperature detection device 40 by wire or wirelessly. When the welding temperature is higher than the limit temperature, the early warning device can provide timely feedback, which is conducive to the optimization of the production process, reducing abnormal risks, and improving product quality. The early warning device can be an independent early warning device, such as an optical early warning device (such as an LED light) or an acoustic early warning device (such as a buzzer). Alternatively, the early warning device can be located in the above-mentioned control terminal.

[0053] like Figure 6 As shown, in some embodiments, the base 10 is roughly in the shape of a plate, and a limiting groove 11 may be provided on the base 10. The cover plate limiting frame 20 is installed in the limiting groove 11, and the limiting groove 11 can limit the cover plate limiting frame 20.

[0054] like Figure 6As shown, in some embodiments, the number of the battery cell limiting frames 30 is two, and the two battery cell limiting frames 30 are symmetrically arranged on both sides of the cover plate limiting frame 20. The two battery cell limiting frames 30 can clamp and limit the cover plate limiting frame 20. In this case, the limiting groove 11 may not be provided on the base 10. Of course, it is also possible to provide the limiting groove 11 while the two battery cell limiting frames 30 clamp and limit the cover plate limiting frame 20, which is not specifically limited here.

[0055] like Figure 6 As shown, in some embodiments, the battery cell limiting frame 30 includes a bottom plate 31, a support plate 32 and a bearing plate 33; the bottom plate 31 is used to connect to the base 10, the lower end of the support plate 32 is connected to the bottom plate 31, and the upper end of the bearing plate 33 is connected to the lower end of the bearing plate 33.

[0056] Furthermore, the bottom plate 31 can be movably mounted on the base 10. Specifically, the base 10 is provided with a plurality of sliding grooves 12, which are extended along the length direction of the base 10. The "length direction" here can be the clamping direction of the battery cell limit frame 30 to clamp and limit the cover plate limit frame 20. The bottom plate 31 is provided with a plurality of limit holes 311, which are arranged opposite to the sliding grooves 12. The battery cover plate component welding and installation tool also includes fasteners, which are used to penetrate the limit holes 311 and be inserted into the sliding grooves 12 to fix the bottom plate 31 on the base 10, so that the battery cell limit frame 30 can stay at a certain position on the base 10. The fasteners can include but are not limited to bolts or limit pins.

[0057] Understandably, the position of the cell limit frame 30 relative to the base 10 is adjustable, which facilitates the adjustment of the position of the cell limit frame 30. At the same time, when the two cell limit frames 30 clamp and limit the cover limit frame 20, the cover limit frame 20 can be selected in different sizes, and then the positions of the two cell limit frames 30 are adjusted to limit the cover limit frame 20, which can improve the applicability of the entire battery cover component welding and installation tooling.

[0058] In some embodiments, the support plate 32 may be provided with a wiring hole 321 (eg, Figure 6 As shown), the wiring hole 321 is arranged to be relatively connected with the threading hole 23.

[0059] In some embodiments, both sides of the upper surface of the supporting plate 33 in the width direction are respectively provided with limiting convex edges 331 , and the upper surface of the supporting plate 33 and the limiting convex edges 331 define a cell supporting position 33 a .

[0060] In some embodiments, the base 10, the cover plate limiting frame 20, and the battery cell limiting frame 30 can be made of metal materials, such as stainless steel. Of course, they can also be made of non-metallic materials or composite materials, which are not specifically limited here.

[0061] The battery cover component welding and installation tooling applications are as follows:

[0062] The cover limit frame 20 is installed on the base 10, and then the relative positions of the battery cell limit frame 30 and the cover limit frame 20 are adjusted, and the cover 100 is placed on the cover bearing position 20a of the cover limit frame 20, and the pole 102 of the cover 100 is set downward and can be placed in the accommodating groove 22, the battery cell 200 is placed in the battery cell bearing position 33a on the supporting plate 33, and the connecting piece 101 connected to the pole ear 201 of the battery cell 200 is placed on the surface of the cover 100, and then a welding operation (such as laser welding operation) is performed to firmly weld the connecting piece 101 and the pole 102 of the cover 100. During the welding process, the temperature detection device 40 can monitor the welding temperature in real time.

[0063] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the utility model. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the utility model, the above-mentioned technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should fall within the scope of the claims of the utility model.

Claims

1. A battery cover component welding and installation tool, characterized in that: It comprises a base (10), a cover plate limiting frame (20), and a battery cell limiting frame (30); The cover plate limiting frame (20) is installed on the base (10), and a cover plate bearing position (20a) is provided on the upper surface of the cover plate limiting frame (20) for bearing and limiting the cover plate (100); the cover plate limiting frame (20) is provided with a temperature detection device (40), and the temperature detection device (40) is used to detect the welding temperature of the pole (102) of the cover plate (100); The battery cell limiting frame (30) is mounted on the base (10), and the battery cell limiting frame (30) comprises a bearing plate (33), the bearing plate (33) and the cover plate limiting frame (20) are arranged to be inclined relative to each other, and a battery cell bearing position (33a) is provided on the upper surface of the bearing plate (33) for bearing and limiting the battery cell (200).

2. The battery cover component welding and installation tool according to claim 1, characterized in that: A limiting wall (21) extends upward from the circumference of the upper surface of the cover plate limiting frame (20); The upper surface of the cover plate limiting frame (20) and the limiting wall (21) jointly define the cover plate bearing position (20a).

3. The battery cover component welding and installation tool according to claim 1, characterized in that: At least two receiving grooves (22) are concavely formed on the upper surface of the cover plate limiting frame (20), and the at least two receiving grooves (22) are arranged at intervals and are used to receive the pole (102); The temperature detection device (40) is arranged in the containing groove (22) and is used to monitor the temperature of the pole.

4. The battery cover component welding and installation tool according to claim 3, characterized in that: The circumferential side wall of the cover plate limiting frame (20) is also provided with a plurality of threading holes (23), and the threading holes (23) are communicated with the inner cavity of the accommodating groove (22) for the cables of the temperature detection device (40) to be threaded.

5. The battery cover component welding and installation tool according to claim 1, characterized in that: The base (10) is provided with a limiting groove (11), and the cover plate limiting frame (20) is installed in the limiting groove (11).

6. The battery cover component welding and installation tool according to claim 1, characterized in that: Limiting convex edges (331) are respectively provided on both sides of the width direction of the upper surface of the carrying plate (33), and the upper surface of the carrying plate (33) and the limiting convex edges (331) define the battery cell carrying position (33a).

7. The battery cover component welding and installation tool according to claim 6, characterized in that: The battery cell limiting frame (30) comprises a bottom plate (31), a support plate (32) and the bearing plate (33); The bottom plate (31) is used to be connected to the base (10), the lower end of the support plate (32) is connected to the bottom plate (31), and the upper end of the bearing plate (33) is connected to the lower end of the bearing plate (33).

8. The battery cover component welding and installation tool according to claim 7, characterized in that: The bottom plate (31) is movably mounted on the base (10); Wherein, the base (10) is provided with a plurality of sliding grooves (12), and the sliding grooves (12) are extended along the length direction of the base (10); The bottom plate (31) is provided with a plurality of limiting holes (311), and the limiting holes (311) are arranged opposite to the sliding groove (12); The battery cover plate component welding and installation tool also includes a fastener, which is used to penetrate the limiting hole (311) and be inserted into the sliding groove (12) to fix the bottom plate (31) on the base (10).

9. The battery cover component welding and installation tool according to any one of claims 1 to 8, characterized in that: The number of the battery cell limiting frames (30) is two, and the two battery cell limiting frames (30) are symmetrically arranged on both sides of the cover plate limiting frame (20).

10. The battery cover component welding and installation tool according to any one of claims 1 to 8, characterized in that: The angle formed by the plane where the battery cell bearing position (33a) is located and the plane where the cover plate bearing position (20a) is located is 5° to 75°.

Images