Battery cover plate facilitating welding of connecting tabs to pole posts

Abstract

The utility model relates to the technical fields of battery cover plate, disclose convenient to connect piece and battery cover plate of pole welding, including top cover piece and pole, top cover piece is equipped with pole hole, pole includes upper section, middle section and lower section, and the bottom of lower section forms welding surface, middle section is worn in the pole hole, and upper section is exposed above top cover piece, and lower section comes down below top cover piece, lower step has between middle section and lower section, and lower step has lower bending position, the outer periphery of upper section is equipped with upper plastic piece, and the outer periphery of lower section is equipped with pole block, and the inboard of pole block has lower inner chamfer position, and lower inner chamfer position and lower bending position interval arrangement, the bottom of pole block has bottom surface, and welding surface is below bottom surface, the interval arrangement between lower inner chamfer position and lower bending position of pole block, the assembly between pole hole and lower section is convenient, avoids appearing dead end phenomenon, so that welding surface is below bottom surface, so as to carry out welding between the connecting piece and pole.

Description

Technical Field

[0001] This utility model patent relates to the technical field of battery cover plates, specifically to a battery cover plate and a battery cover plate that facilitates welding of connecting pieces to terminals. Background Technology

[0002] The battery cover is an important component of the battery. It includes a top cover sheet, through which terminals are inserted. The bottom of the terminal has a welding surface for welding with a connecting piece. The connecting piece is connected to the battery cell, thereby realizing the connection between the terminal and the battery cell.

[0003] In the prior art, a pole block is fitted on the pole to facilitate the fixation between the pole and the top cover plate. However, the fit between the pole block and the pole is prone to jamming, causing the bottom surface of the pole hole to be below the welding surface, which affects the welding between the welding surface and the connecting piece and makes it difficult to weld the connecting piece and the pole. Utility Model Content

[0004] The purpose of this invention is to provide a battery cover that facilitates welding of the connecting piece and the terminal post, thereby solving the problem that welding of the connecting piece and the terminal post is not convenient in the prior art.

[0005] This utility model is implemented as follows: a battery cover plate that facilitates welding of connecting pieces and terminals includes a top cover plate and terminals. The top cover plate has terminals holes. Along the height direction of the terminals, the terminals include an upper section, a middle section, and a lower section. The bottom of the lower section forms a welding surface for welding with the connecting piece.

[0006] The middle section passes through the electrode hole, the upper section is exposed above the top cover plate, and the lower section descends below the top cover plate; there is a downwardly arranged lower step between the middle section and the lower section, and the lower step has a downward bend; an upper plastic part is sleeved on the outer periphery of the upper section, and the upper plastic part abuts against the top cover plate to insulate the electrode from the top cover plate.

[0007] The lower section is fitted with an electrode block on its outer periphery. The inner side of the electrode block has a lower inner chamfer facing downward bend. The lower inner chamfer is chamfered and spaced apart from the lower bend. The bottom of the electrode block has a bottom surface, and the welding surface is located below the bottom surface.

[0008] Furthermore, the lower bend is arranged in a right-angle bend configuration.

[0009] Furthermore, a lower plastic part is fixed to the bottom of the top cover plate, and the pole block abuts against the lower plastic part from bottom to top.

[0010] Furthermore, the lower plastic part has a downwardly arranged plastic part step, and the plastic part step has a plastic part bending position; the outer side of the pole block has a lower outer chamfer, the lower outer chamfer is chamfered, the lower outer chamfer is arranged towards the plastic part bending position, and is spaced apart from the plastic part bending position.

[0011] Furthermore, the bending points of the plastic part are arranged at right angles.

[0012] Furthermore, a sealing ring is filled between the bottom of the top cover plate and the pole block, and the sealing ring is sleeved on the outer periphery of the lower section.

[0013] Furthermore, there is an annular gap between the outer periphery of the intermediate section and the inner wall of the pole hole, the upper part of the upper plastic part has an upper annular segment that wraps around the outer periphery of the upper section, and the lower part of the upper plastic part has a lower annular segment that is embedded in the annular gap, the lower annular segment surrounding the outer periphery of the intermediate section.

[0014] Furthermore, the upper plastic part has a middle ring section in the middle, which is connected between the upper ring section and the lower ring section, and is clamped between the upper section and the top cover plate.

[0015] Furthermore, there is a downward-facing upper step between the upper section and the middle section, and the upper step has an upper bend; there is an upper chamfer between the upper ring section and the middle ring section, the upper chamfer is chamfered, the upper chamfer is arranged facing the upper bend and is spaced apart from the upper bend.

[0016] Furthermore, the upper bend is arranged at a right angle.

[0017] Compared with the prior art, the battery cover plate provided by this utility model facilitates the welding of the connecting piece and the terminal post. The terminal post is inserted into the top cover plate, with the middle section passing through the terminal post hole, the upper section located above the top cover plate, and the lower section located below the top cover plate. The lower inner chamfer and lower bend of the terminal post block are arranged alternately to facilitate the assembly between the terminal post hole and the lower section and avoid the phenomenon of jamming. This ensures that the welding surface is located below the bottom surface, so as to facilitate the welding between the connecting piece and the terminal post. Attached Figure Description

[0018] Figure 1 This is a cross-sectional schematic diagram of the battery cover plate provided by this utility model, which facilitates the welding of connecting pieces and terminals;

[0019] Figure 2 This is a front view schematic diagram of the pole provided by this utility model;

[0020] Figure 3 This is a partial cross-sectional view of the pole post hole provided by this utility model;

[0021] Figure 4This is a partial cross-sectional view of the upper plastic part provided by this utility model. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] The implementation of this utility model will be described in detail below with reference to specific embodiments.

[0024] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, 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. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0025] Reference Figure 1-4 The image shown is a preferred embodiment of the present invention.

[0026] A battery cover plate that facilitates welding of connecting pieces and terminals includes a top cover plate 400 and a terminal 100. The top cover plate 400 has a terminal hole. Along the height direction of the terminal 100, the terminal 100 includes an upper section 101, a middle section 102 and a lower section 103. The bottom of the lower section 103 forms a welding surface 104 for welding with the connecting piece.

[0027] The middle section 102 passes through the pole hole, the upper section 101 is exposed above the top cover plate 400, and the lower section 103 descends below the top cover plate 400; there is a downwardly arranged lower step between the middle section 102 and the lower section 103, and the lower step has a downward bend 1031; an upper plastic part 300 is sleeved on the outer periphery of the upper section 101, and the upper plastic part 300 abuts against the top cover plate 400 to insulate the pole 100 from the top cover plate 400.

[0028] The lower section 103 is fitted with an electrode block 200 on its outer periphery. The inner side of the electrode block 200 has a lower inner chamfer 203 facing the lower bending position 1031. The lower inner chamfer 203 is chamfered and is arranged at intervals with the lower bending position 1031. The bottom of the electrode block 200 has a bottom surface 201, and the welding surface 104 is located below the bottom surface 201.

[0029] The battery cover plate provided above facilitates welding of the connecting piece and the terminal post. The terminal post 100 passes through the top cover plate 400. The middle section 102 passes through the terminal post hole, the upper section 101 is located above the top cover plate 400, and the lower section 103 is located below the top cover plate 400. The lower inner chamfer 203 and the lower bend 1031 of the terminal post block 200 are arranged at intervals to facilitate the assembly between the terminal post hole and the lower section 103 and avoid jamming. This allows the welding surface 104 to be located below the bottom surface 201, so that the connecting piece and the terminal post 100 can be welded.

[0030] In this embodiment, the lower bend 1031 is arranged in a right-angle bend, which facilitates the formation of a lower step between the middle section 102 and the lower section 103.

[0031] In this embodiment, a lower plastic part 600 is fixed to the bottom of the top cover plate 400, and the pole block 200 abuts against the lower plastic part 600 from bottom to top.

[0032] In this embodiment, the lower plastic part 600 has a plastic part step arranged downwards, and the plastic part step has a plastic part bending position 601; the outer side of the pole block 200 has a lower outer chamfer position 202, the lower outer chamfer position 202 is chamfered, the lower outer chamfer position 202 is arranged towards the plastic part bending position 601, and is spaced apart from the plastic part bending position 601.

[0033] In this way, the electrode post 200 and the lower plastic part 600 are prevented from jamming during the fitting process, so that the fitting between the electrode post 200 and the lower plastic part 600 is more stable.

[0034] In this embodiment, the bending position 601 of the plastic part is arranged at a right angle, which facilitates the formation of the plastic part step.

[0035] In this embodiment, a sealing ring 500 is filled between the bottom of the top cover plate 400 and the pole block 200, and the sealing ring 500 is sleeved on the outer periphery of the lower section 103. By arranging the sealing ring 500, the top cover plate 400 and the pole block 100 are sealed together.

[0036] In this embodiment, there is an annular gap between the outer periphery of the intermediate section 102 and the inner wall of the electrode hole. The upper part of the upper plastic part 300 has an upper annular section 301 that wraps around the outer periphery of the upper section 101, and the lower part of the upper plastic part 300 has a lower annular section 303 that is embedded in the annular gap. The lower annular section 303 surrounds the outer periphery of the intermediate section 102. In this way, the upper plastic part 300 and the electrode 100 can be stably fitted together, and the electrode 100 can be stably inserted into the electrode hole.

[0037] In this embodiment, the upper plastic part 300 has a middle ring section 302 in the middle, which is connected between the upper ring section 301 and the lower ring section 303. The middle ring section 302 is sandwiched between the upper section 101 and the top cover plate 400. In this way, the middle ring section 302 and the lower ring section 303 are used to insulate and isolate the pole post 100 and the top cover plate 400.

[0038] In this embodiment, an upper step facing downwards is provided between the upper section 101 and the middle section 102, and the upper step has an upper bend 1011; an upper chamfer 304 is provided between the upper ring section 301 and the middle ring section 302, the upper chamfer 304 is chamfered, the upper chamfer 304 is arranged facing the upper bend 1011, and is spaced apart from the upper bend 1011. In this way, during the assembly process of the upper plastic part 300 and the pole post 100, the phenomenon of the upper bend 1011 and the upper chamfer 304 being stuck together is avoided, so that the fit between the upper plastic part 300 and the pole post 100 is more stable.

[0039] In this embodiment, the upper bend position 1011 is arranged at a right angle, which facilitates the arrangement and formation of the upper step.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A battery cover plate that facilitates welding of connecting pieces to terminals, characterized in that, It includes a top cover plate and an electrode post. The top cover plate has an electrode post hole. Along the height direction of the electrode post, the electrode post includes an upper section, a middle section and a lower section. The bottom of the lower section forms a welding surface for welding with a connecting plate. The middle section passes through the electrode hole, the upper section is exposed above the top cover plate, and the lower section descends below the top cover plate; there is a downwardly arranged lower step between the middle section and the lower section, and the lower step has a downward bend; an upper plastic part is sleeved on the outer periphery of the upper section, and the upper plastic part abuts against the top cover plate to insulate the electrode from the top cover plate. The lower section is fitted with an electrode block on its outer periphery. The inner side of the electrode block has a lower inner chamfer facing downward bend. The lower inner chamfer is chamfered and spaced apart from the lower bend. The bottom of the electrode block has a bottom surface, and the welding surface is located below the bottom surface.

2. The battery cover plate as described in claim 1, which facilitates welding of the connecting piece and the terminal post, is characterized in that, The lower bend is arranged in a right-angle bend configuration.

3. The battery cover plate as described in claim 1, which facilitates welding of the connecting piece and the terminal post, is characterized in that... The bottom of the top cover is fixed with a lower plastic part, and the pole block abuts against the lower plastic part from bottom to top.

4. The battery cover plate as described in claim 3, which facilitates welding of the connecting piece and the terminal post, is characterized in that... The lower plastic part has a downwardly arranged plastic part step, and the plastic part step has a plastic part bending position; the outer side of the pole block has a lower outer chamfer, the lower outer chamfer is chamfered, the lower outer chamfer is arranged towards the plastic part bending position, and is spaced apart from the plastic part bending position.

5. The battery cover plate as described in claim 4, which facilitates welding of the connecting piece and the terminal post, is characterized in that... The bending points of the plastic part are arranged at right angles.

6. The battery cover plate as described in any one of claims 1 to 5, facilitating the welding of connecting pieces and terminals, characterized in that, A sealing ring is filled between the bottom of the top cover plate and the pole block, and the sealing ring is sleeved on the outer periphery of the lower section.

7. The battery cover plate as described in any one of claims 1 to 5, facilitating welding of the connecting piece and the terminal post, characterized in that, There is an annular gap between the outer periphery of the middle section and the inner wall of the pole hole. The upper part of the upper plastic part has an upper annular segment that wraps around the outer periphery of the upper section. The lower part of the upper plastic part has a lower annular segment that is embedded in the annular gap. The lower annular segment surrounds the outer periphery of the middle section.

8. The battery cover plate as described in claim 7, which facilitates welding of the connecting piece and the terminal post, is characterized in that... The upper plastic part has a middle ring section in the middle, which is connected between the upper ring section and the lower ring section, and is clamped between the upper section and the top cover plate.

9. The battery cover plate as described in claim 8, which facilitates welding of the connecting piece and the terminal post, is characterized in that... The upper section and the middle section have a downward-facing upper step with an upward bend; the upper ring section and the middle ring section have an upper chamfer, the upper chamfer is chamfered, the upper chamfer is arranged facing the upper bend and is spaced apart from the upper bend.

10. The battery cover plate as described in claim 9, which facilitates welding of the connecting piece and the terminal post, is characterized in that... The upper bend is arranged at a right angle.

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