A battery module welding fixing device

Abstract

The utility model provides a kind of battery module welding fixing device, belong to battery module assembly welding technical field. Including bottom plate, bottom plate top edge is equipped with enclosure baffle, sliding connection has upper limit stop between the enclosure baffle transverse inner side wall, sliding connection has lower limit stop between the enclosure baffle longitudinal inner side wall, upper limit stop, lower limit stop side wall center is rotatably connected with screw rod, locking portion for fast moving screw rod is equipped on the enclosure baffle side wall.The utility model passes through screw rod and locking portion joint action, can fast move screw rod, and then can fast move upper limit stop, lower limit stop to with battery module outer side wall closely, so that the battery module to be welded is fixed in the placement space, relative to the placement space formed by the four limit stops assembled together by several butterfly nuts in traditional, without artificial exertion external force or with the help of tool force push limit stop, the whole fixing operation process screwing time is also effectively reduced, operation is more simple and convenient.

Description

Technical Field

[0001] This utility model provides a battery module welding and fixing device, belonging to the field of battery module assembly and welding technology. Background Technology

[0002] A battery module, also known as a battery module assembly, is a key intermediate component in a battery system. It is assembled from multiple battery cells (individual cells) connected in series or parallel, designed to provide higher voltage and capacity to meet the power demands of specific applications. During assembly, several neatly arranged batteries are aligned according to their positive and negative terminals, and then connected by welding using connecting tabs and copper busbars. Currently, to ensure the several batteries forming a battery module are tightly aligned and ready for welding, a battery module welding and fixing device is typically required.

[0003] Existing battery module welding and fixing devices can basically meet normal usage needs. The device generally includes four limiting plates assembled together by several wing nuts. The placement space formed between the four limiting plates allows the battery module to be placed in the placement space. Then, by continuously turning several wing nuts in various directions, the limiting plates are moved. Combined with manual external force or the use of tools to push the limiting plates until they are in contact with the outer wall of the battery module, the placement space between the limiting plates is adapted to the battery module, thus fixing the battery module to be welded in the placement space.

[0004] Based on the above research and existing technology findings, when tightening the wing nut to limit the position of the limiting plate, it is usually necessary to apply external force manually or use tools to push the limiting plate to fix the battery module to be welded in the placement space. The entire fixing operation is relatively time-consuming and not simple or convenient. Therefore, this utility model provides a battery module welding and fixing device. Utility Model Content

[0005] The technical problem solved by this utility model is that the time required to tighten the wing nut to limit the position of the limiting plate is relatively long. It is necessary to combine manual application of external force or use tools to push the limiting plate to fix the battery module in the placement space, which is not simple and convenient to operate.

[0006] To solve the technical problem, the present invention provides the following technical solution: a battery module welding and fixing device, comprising a base plate, a baffle plate at the top edge of the base plate, an upper limit plate slidably connected between the transverse inner sidewalls of the baffle plate, and a lower limit plate slidably connected between the longitudinal inner sidewalls of the baffle plate and positioned below the upper limit plate. A screw passing through the baffle plate is rotatably connected to the center of the sidewalls of both the upper and lower limit plates. A locking part for quickly moving the screw is provided on the sidewall of the baffle plate. The locking part includes support plates symmetrically located on both sides of the screw and fixedly connected to the outer sidewall of the baffle plate. A C-shaped clamping block is elastically connected to the sidewall of the support plate, threadedly connected to the screw and slidably connected to the outer sidewall of the baffle plate.

[0007] Furthermore, a spring is fixedly connected between the side wall of the C-shaped clamping block and the side wall of the support plate.

[0008] Furthermore, the C-shaped clamping block has a pull rod on its side wall that is placed inside the spring and passes through the support plate, and the end of the pull rod has a finger insertion ring placed outside the support plate.

[0009] Furthermore, the side wall of the enclosure is provided with a through hole through which the screw passes, and the other end of the screw is provided with a handwheel.

[0010] Furthermore, the upper limit plate has symmetrical protrusions on both sides of its side walls, and the two inner side walls of the enclosure plate have grooves that match the protrusions.

[0011] Furthermore, the concave sidewall of the C-shaped clamp is provided with threads that match the screw, and the outer sidewall of the enclosure is provided with a limiting rail that matches the bottom of the C-shaped clamp.

[0012] The beneficial effects of this utility model are:

[0013] Several batteries that make up the battery module are neatly arranged in the placement space. Then, through the combined action of the screw and the locking part, the screw can be moved quickly, which in turn can quickly move the upper and lower limit plates to fit tightly against the outer wall of the battery module. This fixes the battery module to be welded in the placement space. Compared with the traditional placement space formed by four limit plates assembled with several wing nuts, there is no need to apply external force or use tools to push the limit plates. The entire fixing operation process also reduces the turning time, making the operation simpler and more convenient. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a battery module welding and fixing device according to the present invention. Figure 1 .

[0015] Figure 2 This is a schematic diagram of the structure of a battery module welding and fixing device according to the present invention. Figure 2 .

[0016] Figure 3 This is a plan view of a battery module welding and fixing device according to the present invention.

[0017] Figure 4 This is a partially enlarged view of a battery module welding and fixing device according to the present invention.

[0018] 1. Base plate; 2. Enclosure plate; 3. Upper limit plate; 4. Lower limit plate; 5. Screw; 6. Locking part; 7. Support plate; 8. C-shaped clamp; 9. Spring; 10. Pull rod; 11. Finger insertion ring; 12. Handwheel; 13. Protrusion; 14. Slide groove; 15. Limit rail. Detailed Implementation

[0019] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may vary depending on their location and usage; thus, these or other directional terms should not be interpreted as restrictive terms.

[0020] The singular forms “a,” “the,” and “the” used in this specification are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes one or more of the associated listed items, any or all possible combinations thereof.

[0021] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0022] According to the appendix Figure 1 , 2 As shown in Figure 4: This utility model provides a battery module welding and fixing device, including a base plate 1, a baffle plate 2 at the top edge of the base plate 1, an upper limit plate 3 slidably connected between the transverse inner sidewalls of the baffle plate 2, and a lower limit plate 4 slidably connected between the longitudinal inner sidewalls of the baffle plate 2, which is placed below the upper limit plate 3. The upper limit plate 3 has symmetrical protrusions 13 on both sidewalls. The two transverse inner sidewalls of the baffle plate 2 are provided with sliding grooves 14 that match the protrusions 13, which serve to limit the upper limit plate 3. Specifically, the adjacent sidewalls of the baffle plate 2, the top of the base plate 1, the upper limit plate 3, and the lower limit plate 4 together form a battery module placement space, so that several batteries that make up the battery module can be neatly arranged in the placement space for welding.

[0023] As per the instruction manual Figure 1 , 4As shown: The upper limit plate 3 and lower limit plate 4 are both rotatably connected to the center of their side walls by screws 5 passing through the baffle plate 2. The baffle plate 2 has a through hole on its side wall for the screws 5. A handwheel 12 is provided at the other end of the screw 5 for easy hand gripping. The baffle plate 2 has a locking part 6 for quick-moving the screw 5. The locking part 6 includes support plates 7 symmetrically located on both sides of the screw 5 and fixedly connected to the outer side wall of the baffle plate 2. The support plates 7 have C-shaped clamping blocks 8 elastically connected to the side walls of the support plates 7, which are threadedly connected to the screw 5 and slidably connected to the outer side wall of the baffle plate 2. The concave side wall of the C-shaped clamping block 8 has threads matching the screw 5. The C-shaped clamping block 8 is initially threadedly connected to the screw 5. The outer side wall of the baffle plate 2 has a locking part 6 for quick-moving the screw 5. The bottom of the 8-type clamping block 8 is matched with the limiting rail 15, which serves to limit the C-type clamping block 8. A spring 9 is fixedly connected between the side wall of the C-type clamping block 8 and the side wall of the support plate 7. The side wall of the C-type clamping block 8 is provided with a pull rod 10 placed inside the spring 9 and passing through the support plate 7. The end of the pull rod 10 is provided with a finger insertion ring 11 placed outside the support plate 7. Specifically, two fingers of one hand are inserted into the finger insertion ring 11 and pushed outward, so that the pull rod 10 and the C-type clamping block 8 move outward. The spring 9 is compressed by force. After the C-type clamping block 8 is disengaged from the screw 5, the other hand can hold the handwheel 12 to move the screw 5 back and forth, thereby driving the upper limit plate 3 and the lower limit plate 4 to a suitable position near the edge of the battery module.

[0024] The principle of this utility model

[0025] In use, several batteries that make up the battery module are neatly arranged in the placement space. Then, through the combined action of the screw 5 and the locking part 6, two fingers of one hand are inserted into the finger insertion ring 11 and pushed outwards, causing the pull rod 10 and the C-shaped clamp 8 to move outwards. The spring 9 is compressed, and after the C-shaped clamp 8 disengages from the screw 5, the other hand can hold the handwheel 12 to easily move the screw 5 back and forth, thereby moving the upper limit plate 3 and the lower limit plate 4 to a suitable position near the edge of the battery module. Afterwards, the fingers disengage from the finger insertion ring 11, the compressed spring 9 rebounds and resets, returning the C-shaped clamp 8 to its initial state. This allows the threads on the concave sidewall of the C-shaped clamp 8 to engage with the screw... When rod 5 is matched, the screw rod 5 is limited by the screw thread and cannot move straight back and forth. Then, hold the handwheel 12 and rotate it. Under the action of the screw thread, the screw rod 5 rotates and moves back and forth, which in turn drives the upper limit plate 3 and the lower limit plate 4 to move back and forth until they are in close contact with the outer wall of the battery module. This fixes the battery module to be welded in the placement space between the baffle plate 2, the base plate 1, the upper limit plate 3 and the lower limit plate 4. Compared with the traditional placement space formed by four limit plates assembled together by several wing nuts, there is no need to manually apply external force or use tools to push the limit plates. The entire fixing operation process also reduces the turning time, making the operation simpler and more convenient.

[0026] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A battery module welding and fixing device, comprising a base plate (1), characterized in that: The bottom plate (1) is provided with a baffle plate (2) at the top edge. An upper limit plate (3) is slidably connected between the transverse inner sidewalls of the baffle plate (2). A lower limit plate (4) is slidably connected between the longitudinal inner sidewalls of the baffle plate (2) and is placed below the upper limit plate (3). A screw (5) passing through the baffle plate (2) is rotatably connected to the center of the sidewall of the upper limit plate (3) and the lower limit plate (4). A locking part (6) for quick-moving the screw (5) is provided on the sidewall of the baffle plate (2). The locking part (6) includes a support plate (7) symmetrically located on both sides of the screw (5) and fixedly connected to the outer sidewall of the baffle plate (2). A C-shaped clamp (8) is elastically connected to the sidewall of the support plate (7) and threadedly connected to the screw (5) and slidably connected to the outer sidewall of the baffle plate (2).

2. The battery module welding and fixing device according to claim 1, characterized in that: A spring (9) is fixedly connected between the side wall of the C-shaped clamp (8) and the side wall of the support plate (7).

3. The battery module welding and fixing device according to claim 2, characterized in that: The C-shaped clamp (8) has a pull rod (10) on its side wall, which is placed inside the spring (9) and passes through the support plate (7). The end of the pull rod (10) has a finger insertion ring (11) placed outside the support plate (7).

4. The battery module welding and fixing device according to claim 1, characterized in that: The side wall of the enclosure (2) is provided with a through hole through the screw (5), and the other end of the screw (5) is provided with a handwheel (12).

5. The battery module welding and fixing device according to claim 1, characterized in that: The upper limit plate (3) has symmetrical protrusions (13) on both sides, and the two inner side walls of the enclosure plate (2) are provided with grooves (14) that match the protrusions (13).

6. The battery module welding and fixing device according to claim 1, characterized in that: The inner concave side wall of the C-shaped clamp (8) is provided with threads that match the screw (5), and the outer side wall of the baffle plate (2) is provided with a limiting rail (15) that matches the bottom of the C-shaped clamp (8).

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