Battery cell welding positioning device in battery module

Abstract

The utility model discloses a battery cell welding and positioning device in a battery module, which comprises a fixing plate, a supporting rod is arranged on the fixing plate, a ball head connecting rod is rotatably mounted on the supporting rod, a positioning plate is rotatably mounted at one end of the ball head connecting rod, four clamping plates are slidably mounted on the positioning plate, and the four clamping plates are fixedly mounted on the fixing plate. The four clamping plates are installed on the periphery of the positioning plate in a sliding mode, and a plurality of hollowed-out areas are formed in the positioning plate. According to the utility model, the ball head connecting rod is arranged, so that the positioning plate has a rotating function, and the hollow area is arranged on the positioning plate, so that when unconventional welding spots such as corners of a battery cell and the like need to be welded, not only can welding be carried out by turning over the positioning plate, but also welding can be carried out through the hollow area; the traditional single fixed welding mode that the battery cell needs to be dismounted is avoided, and the flexibility and the working efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery core welding, and in particular to a battery core welding positioning device in a battery module. Background Art

[0002] The welding of the combined battery cell with the tabs and protective sheets is a key process in battery manufacturing. The existing welding method mainly relies on manually dragging the battery cell, then placing the tabs and protective sheets, and welding them to complete the production of the combined battery cell. However, relying solely on manually dragging the battery cell will result in poor position accuracy of the battery cell welding tabs and protective sheets, which reduces the consistency and stability of welding. Some of them are also clamped and welded by fixtures, but the general adaptability of these fixtures is also poor. During the welding process, due to different battery cell models, the fixtures often need to be replaced frequently, which not only increases the welding difficulty of the operator, but also reduces work efficiency and wastes material costs. In addition, the tooling furniture is usually fixed and clamped on the same plane. When it is necessary to weld unconventional welding points such as the corners of the battery cell, the battery cell can only be flipped and welded by removing the fixture, which makes the operation inflexible and troublesome.

[0003] To this end, the utility model provides a battery core welding positioning device in a battery module to solve the above-mentioned problem. Utility Model Content

[0004] The utility model provides a battery cell welding positioning device in a battery module. By arranging a ball head connecting rod and a hollow area on a positioning plate, when it is necessary to weld unconventional welding points such as corners of the battery cell, welding can be performed not only by flipping the positioning plate, but also through the hollow area, thus avoiding the traditional single fixed welding method that requires the battery cell to be removed, improving flexibility and work efficiency, and solving the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above objectives, the utility model provides the following technical solutions:

[0006] A battery cell welding positioning device in a battery module comprises a fixing plate, a support rod is arranged on the fixing plate, a ball head connecting rod is rotatably mounted on the support rod, a positioning plate is rotatably mounted on one end of the ball head connecting rod, four clamping plates are slidably mounted on the positioning plate, the four clamping plates are respectively slidably mounted around the positioning plate, and a plurality of hollow areas are opened on the positioning plate.

[0007] Preferably, a connecting rod is provided at the bottom of the positioning plate, and one end of the ball head connecting rod is rotatably mounted on the connecting rod.

[0008] Preferably, locking clamps are sleeved on both ends of the ball head connecting rod, deformation grooves are opened on the support rod and the connecting rod, and the two locking clamps are respectively sleeved on one end of the support rod and the connecting rod and are located at the deformation grooves.

[0009] Preferably, locking springs are connected to the side walls of the two locking clamps, knob blocks are rotatably installed on the side walls of one end of the two locking clamps, the two knob blocks are rotatably installed on the side walls of one end of the locking clamps through threads, and through shafts are connected to the two knob blocks, which respectively pass through the support rod and the connecting rod and are located on the other end of the locking clamps.

[0010] Preferably, the four clamping plates are L-shaped structures, and the four clamping plates and the positioning plate surround each other to form a square clamping area.

[0011] Preferably, tension springs are arranged inside the side walls surrounding the positioning plate, and the four tension springs are elastically connected to the four clamping plates respectively.

[0012] Compared with the existing technology, the utility model has the following beneficial effects:

[0013] 1. The battery cell welding positioning device in the battery module described in the utility model has a ball head connecting rod so that the positioning plate has the function of rotation, and a hollow area is set on the positioning plate. When it is necessary to weld unconventional welding points such as the corners of the battery cells, welding can be performed not only by flipping the positioning plate, but also through the hollow area, avoiding the traditional single fixed welding method that requires the removal of the battery cells, thereby improving flexibility and work efficiency.

[0014] 2. The battery cell welding positioning device in the battery module described in the utility model can adapt to the specifications and sizes of different battery cell models when clamping the battery cells by setting four elastic clamping plates, thereby improving the adaptability and stability of the clamping plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a top view of a three-dimensional structure diagram of a battery core welding positioning device in a battery module of the utility model;

[0016] Figure 2 This is a schematic diagram of the front view of a three-dimensional structure of a battery core welding positioning device in a battery module of the utility model;

[0017] Figure 3 It is a left-side stereoscopic structural schematic diagram of a battery core welding positioning device in a battery module of the utility model;

[0018] Figure 4 It is a right-side stereoscopic structural schematic diagram of a battery cell welding positioning device in a battery module of the utility model.

[0019] In the figure: 1. fixing plate; 2. supporting rod; 3. ball head connecting rod; 4. positioning plate; 5. clamping plate; 6. connecting rod; 7. locking clamping plate; 8. deformation groove; 9. locking spring; 10. knob block; 11. through shaft; 12. tension spring; 13. hollow area. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figures 1 to 4 As shown, the utility model provides a battery cell welding positioning device in a battery module, including a fixing plate 1, a support rod 2 is arranged on the fixing plate 1, a ball head connecting rod 3 is rotatably mounted on the support rod 2, a positioning plate 4 is rotatably mounted on one end of the ball head connecting rod 3, four clamping plates 5 are slidably mounted on the positioning plate 4, and the four clamping plates 5 are respectively slidably mounted around the positioning plate 4, and a plurality of hollow areas 13 are opened on the positioning plate 4. When it is necessary to weld unconventional welding points such as the corners of the battery cell, welding can be performed not only by flipping the positioning plate 4, but also by the hollow area 13, avoiding the traditional single fixed welding method that requires the removal of the battery cell, and improving flexibility and work efficiency.

[0022] A connecting rod 6 is provided at the bottom of the positioning plate 4, and one end of the ball head connecting rod 3 is rotatably mounted on the connecting rod 6. The positioning plate 4 and the fixing plate 1 are rotatably connected to each other through the ball head connecting rod 3, so that the positioning plate 4 has a rotation function.

[0023] Both ends of the ball head connecting rod 3 are sleeved with locking clamps 7, and deformation grooves 8 are opened on the support rod 2 and the connecting rod 6. The two locking clamps 7 are sleeved on one end of the support rod 2 and the connecting rod 6 and are located at the deformation grooves 8. Since the deformation grooves 8 have a compression amount, the deformation grooves 8 are adjusted by the locking clamps 7 to achieve the rotation performance and fixing performance of the ball head connecting rod 3.

[0024] The side walls of the two locking clamps 7 are connected with locking springs 9, and the side walls of one end of the two locking clamps 7 are rotatably mounted with knob blocks 10, and the two knob blocks 10 are rotatably mounted on the side walls of one end of the locking clamps 7 through threads, and the two knob blocks 10 are connected with through shafts 11, which respectively penetrate the support rod 2 and the connecting rod 6 and are located on the other end of the locking clamps 7. When in use, the locking and loosening states of the locking clamps 7 are realized by manually rotating the knob blocks 10, thereby realizing the tightness adjustment of the ball head connecting rod 3, so as to facilitate flexibility during welding.

[0025] The four clamping plates 5 are L-shaped structures. The four clamping plates 5 and the positioning plate 4 surround each other to form a square clamping area. Tension springs 12 are arranged inside the side walls around the positioning plate 4. The four tension springs 12 are elastically connected to the four clamping plates 5 respectively; this is beneficial to the stability of the battery cell clamping, thereby improving the welding accuracy and welding quality, and avoiding shaking. At the same time, due to the stretching clearance of the tension spring 12, when clamping the battery cell, it can adapt to the specifications and sizes of different battery cell models, thereby improving the flexibility and adaptability of the clamping plate 5.

[0026] In summary, by providing the ball head connecting rod 3, the positioning plate 4 has the function of rotation, and by providing the hollow area 13 on the positioning plate 4, when it is necessary to weld unconventional welding points such as the corners of the battery cell, welding can be performed not only by flipping the positioning plate 4, but also by the hollow area 13, thereby avoiding the traditional single fixed welding method that requires the removal of the battery cell, thereby improving flexibility and work efficiency; at the same time, by providing four elastic clamping plates 5, when clamping the battery cell, it can adapt to the specifications and sizes of different battery cell models, thereby improving the adaptability and stability of the clamping plate 5.

[0027] The foregoing descriptions of specific exemplary embodiments of the present invention are for the purpose of explanation and illustration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can make modifications, substitutions, variations and various selections and changes to the embodiments without creative contribution as needed after reading this specification without departing from the principles and purpose of the present invention, but they are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A battery cell welding positioning device in a battery module, characterized in that: The invention comprises a fixing plate (1), a supporting rod (2) is arranged on the fixing plate (1), a ball head connecting rod (3) is rotatably mounted on the supporting rod (2), a positioning plate (4) is rotatably mounted on one end of the ball head connecting rod (3), four clamping plates (5) are slidably mounted on the positioning plate (4), the four clamping plates (5) are respectively slidably mounted on the four sides of the positioning plate (4), and a plurality of hollow areas (13) are opened on the positioning plate (4).

2. The battery cell welding positioning device in a battery module according to claim 1, characterized in that: A connecting rod (6) is provided at the bottom of the positioning plate (4), and one end of the ball head connecting rod (3) is rotatably mounted on the connecting rod (6).

3. The battery cell welding positioning device in a battery module according to claim 2, characterized in that: Both ends of the ball head connecting rod (3) are sleeved with locking clamps (7), and both the support rod (2) and the connecting rod (6) are provided with deformation grooves (8). The two locking clamps (7) are respectively sleeved on one end of the support rod (2) and the connecting rod (6) and are located at the deformation grooves (8).

4. The battery cell welding positioning device in a battery module according to claim 3, characterized in that: The side walls of the two locking clamps (7) are connected to locking springs (9), the side walls at one end of the two locking clamps (7) are rotatably mounted with knob blocks (10), the two knob blocks (10) are rotatably mounted on the side walls at one end of the locking clamps (7) through threads, and the two knob blocks (10) are connected to through shafts (11), the two through shafts (11) respectively penetrate the support rod (2) and the connecting rod (6) and are located on the other end of the locking clamps (7).

5. The battery cell welding positioning device in a battery module according to claim 1, characterized in that: The four clamping plates (5) are L-shaped structures, and the four clamping plates (5) and the positioning plate (4) surround each other to form a square clamping area.

6. The battery cell welding positioning device in a battery module according to claim 1, characterized in that: Tension springs (12) are arranged inside the side walls around the positioning plate (4), and the four tension springs (12) are elastically connected to the four clamping plates (5) respectively.

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