Clamping and locking type lead-acid storage battery plastic shell

Abstract

The utility model discloses a clamping locking type lead-acid storage battery plastic shell, which relates to the technical field of battery shells, and comprises a shell, a plurality of partition plates are arranged in the shell at intervals, the partition plates divide the interior of the shell into a plurality of independent subareas, the independent subareas form accommodating grooves for accommodating polar plate groups, and the accommodating grooves are used for accommodating polar plate groups. A containing groove is formed in the shell, a clamping assembly is arranged on the opposite inner walls of the containing groove in the length direction of the shell, the clamping assembly comprises a connecting shaft rotationally installed on the side wall of the containing groove, and a clamping plate is rotationally installed on the connecting shaft. Due to the design of the clamping plates, the stress concentration is effectively reduced while stable connection is kept, and the performance and durability of the clamping plates are remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery shells, in particular to a clamping and locking type lead-acid battery plastic shell. Background Art

[0002] The lead-acid battery casing is used to contain electrolyte and plate groups. It is mostly made of polyethylene plastic, which is not only acid-resistant, heat-resistant, and shock-resistant, but also has high strength.

[0003] Since the lead-acid battery shell has a built-in plate group, the active materials on the plates are very easy to fall off during use. After these fallen active materials accumulate in the battery shell, they can easily cause a short circuit between the positive and negative plates, which not only affects the service life of the battery, but also poses a huge safety hazard.

[0004] In addition, in the process of inserting the plate group into the battery slot, the plate group is not easy to align with the opening of the battery slot, and it is easy to scratch the four walls of the battery slot opening, causing the active material on the plate to fall off. Moreover, the thickness of the plate group is usually inconsistent. It is difficult to ensure that it is completely pressed against the wall of the battery slot after insertion. It is very easy to cause vibration during use, causing the active material on the plate to fall off. Most importantly, after a period of use, the plate group will expand to a certain extent, causing squeezing between the plate and the inner wall of the battery slot. Since there is a hard contact between the plate group and the inner wall of the battery slot, it is easy to cause paste removal or even damage to the plate group, thereby causing battery failure or failure.

[0005] The existing patent (application number: CN201620749392.6) proposes a lead-acid battery plastic case, including a shell, wherein a plurality of longitudinal partitions are arranged inside the shell, and the partitions divide the interior of the shell into a plurality of independent spaces. The independent spaces form a battery slot, which is convenient for inserting the plate group and has good stability in use. The fallen powder can be collected separately and isolated from the plate group, and the problem of paste removal or even damage to the plate group caused by the expansion of the plate group can be effectively avoided.

[0006] In the above-mentioned existing technology, the connection between the elastic clamp used for clamping the plate group and the lead-acid battery plastic case is usually connected in a fixed manner. However, the entire elastic force is applied to the elastic clamp, and the stress is easily concentrated at the connection between the elastic clamp and the lead-acid battery plastic case. After long-term use, the elastic clamp with a large bending arc breaks, affecting the overall service life.

[0007] In view of this, this application is hereby filed. Utility Model Content

[0008] The purpose of the utility model is to provide a clamping and locking lead-acid battery plastic case to solve the problems raised in the above background technology.

[0009] In order to solve the above technical problems, the utility model provides a clamping and locking lead-acid battery plastic case, including a shell, a plurality of partitions are arranged inside the shell, the partitions divide the interior of the shell into a plurality of independent partitions, the independent partitions form a receiving groove for accommodating a plate group, and the receiving groove is provided with a clamping assembly on the inner wall opposite to each other along the length direction of the shell, and the clamping assembly includes a connecting shaft rotatably mounted on the side wall of the receiving groove, and a clamping plate is rotatably mounted on the connecting shaft.

[0010] Furthermore, the accommodating groove and the inner side wall of the shell are both provided with a notch groove, and the connecting shaft is rotatably installed inside the notch groove.

[0011] Furthermore, the clamping plate includes a vertical portion arranged parallel and symmetrically with the outer wall of the partition, the upper and lower portions of the vertical portion are both provided with turning portions, and the turning portion is provided with a connecting portion at one end away from the vertical portion, and the connecting portion is sleeved on the connecting shaft.

[0012] Furthermore, the clamping plate is formed by folding a stainless steel spring plate in one piece.

[0013] Furthermore, the folding angle of the turning portion is 15° to 30°, and the outward extension of the turning portion is an arc surface.

[0014] Furthermore, a slide groove is provided on the inner side wall of the shell, and a slider is provided on the side wall of the partition, and the slider is slidably connected inside the slide groove.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. In the utility model, after the electrode group is inserted into the receiving groove, the clamping plate can always fit and clamp the electrode group to prevent it from shaking. During use, if the electrode group expands, the clamping plate will expand to both sides to effectively offset the expansion force generated by the electrode group, thereby avoiding the problem of paste removal or even damage to the electrode group caused by squeezing between the expansion and the inner wall of the receiving groove. The clamping plate is installed by a rotating connection. Compared with the traditional fixed connection method, the design of the clamping plate effectively reduces stress concentration while maintaining a stable connection, and significantly improves the performance and durability of the clamping plate.

[0017] 2. The two connecting shafts symmetrically arranged up and down reduce the load on the overall connection of the clamping plate, thereby increasing the service life of the clamping plate. When the clamping plate is subjected to deformation force, the entire clamping plate is pre-tightened due to the pulling of the two connecting shafts, thereby increasing the tensioning force of the clamping plate. The larger pre-tightening force prevents the clamping plate from plastic deformation or even breakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the connection structure between the partition plate and the clamping assembly of the utility model;

[0020] Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure of;

[0021] Figure 4 It is a schematic diagram of the overall structure of the clamping plate in the utility model.

[0022] In the figure: 1, shell; 2, partition; 3, receiving groove; 4, clamping plate; 401, vertical part; 402, turning part; 403, connecting part; 5, slide groove; 6, slider; 7, notch groove; 8, connecting shaft. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-4 The utility model provides a technical solution: a clamping and locking lead-acid battery plastic case, comprising a shell 1, a plurality of partitions 2 are arranged in the shell 1, the partitions 2 divide the interior of the shell 1 into a plurality of independent partitions, and the independent partitions form a receiving groove 3 for receiving a plate group, and a clamping assembly is arranged on the inner wall of the receiving groove 3 opposite to each other along the length direction of the shell 1, and the clamping assembly comprises a connecting shaft 8 rotatably mounted on the side wall of the receiving groove 3, and a clamping plate 4 is rotatably mounted on the connecting shaft 8. When assembling the battery, after the plate group is inserted into the receiving groove 3, the clamping plate 4 can always fit and clamp the plate group so that it will not shake. During use, if the plate group expands, the clamping plate 4 will expand to both sides to effectively offset the expansion force generated by the plate group, thereby avoiding the problem of paste removal or even damage to the plate group caused by squeezing between the expansion and the inner wall of the receiving groove 3, and the clamping plate 4 is installed by a rotating connection. Compared with the traditional fixed connection method, the design of the clamping plate 4 effectively reduces stress concentration while maintaining a stable connection, and significantly improves the performance and durability of the clamping plate 4.

[0025] See also Figure 1 A notch groove 7 is provided on the inner wall of the accommodating groove 3 and the shell 1 , and the connecting shaft 8 is rotatably installed inside the notch groove 7 . The notch groove 7 is provided to facilitate the installation of the connecting shaft 8 on the partition 2 .

[0026] See also Figure 2The clamping plate 4 includes a vertical portion 401 which is parallel and symmetrical to the outer wall of the partition plate 2. The upper and lower parts of the vertical portion 401 are both provided with turning portions 402. The turning portion 402 is provided with a connecting portion 403 at one end away from the vertical portion 401. The connecting portion 403 is sleeved on the connecting shaft 8.

[0027] The two connecting shafts 8 symmetrically arranged up and down reduce the load on the overall connection of the clamping plate 4, thereby increasing the service life of the clamping plate 4. When the clamping plate 4 is subjected to deformation force, the entire clamping plate 4 is pre-tightened due to the pulling of the two connecting shafts 8, thereby increasing the tensioning force of the clamping plate 4. The larger pre-tightening force prevents the clamping plate 4 from plastic deformation or even breakage.

[0028] The clamping plate 4 is formed by folding a stainless steel spring plate in one piece;

[0029] The folding angle of the turning portion 402 is 15° to 30°, and the outward extension of the turning portion 402 is an arc surface. The arc surface provides a good transition effect and prevents the turning portion 402 from scratching the outer surface of the electrode assembly.

[0030] See also Figure 1 and Figure 2 A slide groove 5 is provided on the inner wall of the shell 1, and a slider 6 is provided on the side wall of the partition 2. The slider 6 is slidably connected to the inside of the slide groove 5. The slider 6 is provided so that the partition 2 can stably slide along the inner wall of the slide groove 5. The partition 2 can adjust the space size of the accommodating groove 3 during the sliding process. During the installation of the electrode group, the space size of the accommodating groove 3 can be expanded to facilitate the placement of the electrode group into the accommodating groove 3. When the electrode group in each accommodating groove 3 is placed, multiple partitions 2 can fit with the electrode group, thereby preventing the partition 2 from sliding arbitrarily inside the shell 1 after the installation is completed.

[0031] Working principle: When assembling the battery, after the plate group is inserted into the receiving groove 3, the clamping plate 4 can always fit and clamp the plate group to prevent it from shaking. During use, if the plate group expands, the clamping plate 4 will expand to both sides, effectively offsetting the expansion force generated by the plate group, thereby avoiding the problem of paste removal or even plate group damage caused by squeezing between the expansion and the inner wall of the receiving groove 3. The clamping plate 4 is installed by a rotating connection. Compared with the traditional fixed connection method, the design of the clamping plate 4 effectively reduces stress concentration while maintaining a stable connection, significantly improving the performance and durability of the clamping plate 4. The two connecting shafts 8 symmetrically arranged up and down reduce the load on the overall connection of the clamping plate 4, thereby increasing the service life of the clamping plate 4. When the clamping plate 4 is subjected to deformation force, the entire clamping plate 4 is pre-tightened due to the pulling of the two connecting shafts 8, thereby increasing the tensioning force of the clamping plate 4. The larger pre-tightening force prevents the clamping plate 4 from plastic deformation or even breakage.

Claims

1. A clamping and locking lead-acid battery plastic case, comprising a housing (1), characterized in that: A plurality of partitions (2) are arranged in the shell (1), the partitions (2) divide the inside of the shell (1) into a plurality of independent partitions, the independent partitions form a receiving groove (3) for receiving the plate group, the receiving groove (3) is provided with a clamping assembly on the inner wall opposite to the length direction of the shell (1), the clamping assembly comprises a connecting shaft (8) rotatably mounted on the side wall of the receiving groove (3), and a clamping plate (4) is rotatably mounted on the connecting shaft (8); the receiving groove (3) and the inner side wall of the shell (1) are both provided with a notch groove (7), the connecting shaft (8) is rotatably mounted inside the notch groove (7); the clamping plate (4) comprises a symmetrical outer wall parallel to the outer wall of the partition (2) A vertical portion (401) is provided, and the upper and lower parts of the vertical portion (401) are both provided with turning portions (402), and the end of the turning portion (402) away from the vertical portion (401) is provided with a connecting portion (403), and the connecting portion (403) is sleeved on the connecting shaft (8); the clamping plate (4) is formed by folding a stainless steel spring plate in one piece; the folding angle of the turning portion (402) is 15° to 30°, and the outward extension of the turning portion (402) is an arc surface; a sliding groove (5) is provided on the inner side wall of the shell (1), and a sliding block (6) is provided on the side wall of the partition (2), and the sliding block (6) is slidably connected to the inside of the sliding groove (5).

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