Lead-acid storage battery cover plate with positioning function
By designing a combination structure of the first and second type of positioning levers on the lead-acid battery cover, the problem of inaccurate positioning during the heat sealing process was solved, achieving precise alignment between the battery cover and the battery compartment, reducing the risk of electrolyte overflow and saving materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-03-06
AI Technical Summary
The positioning part of the existing lead-acid battery cover is severely deformed by heat during the heat sealing process, which affects the alignment accuracy of the cover and leads to the risk of electrolyte leakage.
A lead-acid battery cover was designed, which adopts a combination structure of a first type and a second type of positioning bracket. The first type of positioning bracket has a flared inlet, and the second type of positioning bracket has a conical inlet and a locking groove, which are used for guiding and positioning, respectively, to ensure the alignment of the cover with the battery compartment.
By rationally arranging the first and second types of positioning brackets, the alignment between the battery cover and the battery compartment is ensured, electrolyte overflow is avoided, materials are saved, and costs are reduced.
Smart Images

Figure CN223977975U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of lead-acid battery accessories, specifically relating to a lead-acid battery cover with positioning function. Background Technology
[0002] The main structure of a lead-acid battery consists of positive plates, negative plates, a battery case, separators, electrolyte, a battery cover, and a vent cover. During operation, the electrolyte acts as the medium between the positive and negative plates, participating in the electrochemical reaction within the battery case. After the positive and negative plates and separators are assembled, the battery case and battery cover are bonded together using a heat-sealing method. This securely bonds multiple individual cells around the battery case and cover to prevent electrolyte leakage during use. To ensure a good bond, the cells in the case and cover must be aligned as much as possible to avoid electrolyte leakage, which could seriously affect battery safety. Because the upper parts of the individual cells in the battery case are hollow, deformation of the cells often causes misalignment between the cells in the battery case and the cells in the cover. To ensure heat sealing quality and prevent misalignment of the cells, a battery cover with positioning function is required.
[0003] In the existing battery cover, the positioning part is severely deformed by heat during the heat sealing process, which affects the alignment accuracy.
[0004] Therefore, how to provide a lead-acid battery cover with positioning function is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0005] In view of this, the present invention provides a lead-acid battery cover with a positioning function. During the heat sealing process, the positioning part is not easily softened by heat, thereby ensuring the alignment of the cells in the cover and avoiding problems such as electrolyte cross-contamination or overflow from the heat-sealed joint of the cover caused by the cover being misaligned.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a lead-acid battery cover with positioning function, comprising:
[0007] The cover has multiple partitions on its inner side corresponding to the battery slot, and the end face of the partition can be fixed to the top face of the battery slot.
[0008] The positioning component includes a first type of positioning bracket and a second type of positioning bracket, which are arranged in a row on the partition. The first type of positioning bracket has a flared inlet, and the small-diameter end of the flared inlet is flush with the end face of the partition.
[0009] The second type of positioning buckle is provided with a tapered inlet and a locking slot. The locking slot is a straight slot, and the end face of the partition forms the bottom of the locking slot. The locking slot is clamped on the top two sides of the battery slot.
[0010] The beneficial effects of this utility model are as follows: The partition on the cover is used to align with the battery compartment to seal the individual battery cells. When the cover is bonded and fixed to the battery compartment, the end face of the partition needs to be heated. Both the first type of positioning peg and the second type of positioning peg are used to position the alignment between the cover and the battery compartment. The first type of positioning peg is used in conjunction with the second type of positioning peg, which saves materials and avoids the problem of inaccurate positioning caused by heating. Since heating affects the edge of the positioning peg and changes its hardness, it is easy to cause deviation when aligning with the battery compartment. If only the first type of positioning peg is used, it may cause inaccurate positioning. However, the positioning groove on the second type of positioning peg is less affected by the heating of the end face of the partition, thus ensuring the alignment effect between the cover and the battery compartment. Using only the second type of positioning peg would cause unnecessary material waste. Therefore, the combination of the first type of positioning peg and the second type of positioning peg can ensure the alignment effect between the battery compartment and the battery cover partition during heat sealing and can also save some materials accordingly.
[0011] Preferably, the partition includes a first partition and a second partition, and the cover is provided with a plurality of first partitions and a plurality of second partitions. The first type of positioning bracket is integrally formed on the first partition, and the second type of positioning bracket is integrally formed on the second partition.
[0012] The resulting technical effect is that the first partition is used in conjunction with the first type of positioning bracket, and the second partition is used in conjunction with the second type of positioning bracket. In specific implementation, the number of the first and second partitions can be reasonably arranged, which not only ensures the positioning accuracy of the battery cover and the battery slot, but also saves materials and reduces costs.
[0013] Preferably, the first type of positioning buckle includes a first positioning block and a second positioning block, which are symmetrically arranged on both sides of the first partition. Both the first positioning block and the second positioning block are provided with an inlet section, and the inlet section is provided with a guide slope. The inlet section extends out of the end face of the first partition. The guide slope on the first positioning block and the guide slope on the second positioning block cooperate to form a trumpet-shaped inlet.
[0014] The resulting technical effect is that the horn-shaped inlet on the first type of positioning bend is used to guide the alignment of the battery slot and the battery cover partition, ensuring their alignment.
[0015] Preferably, the second type of positioning lever includes a first mating block and a second mating block, which are symmetrically arranged on both sides of the second partition. Each of the first and second mating blocks is provided with a guide section and a limiting section, which extend out of the end face of the second partition. The guide section on the first mating block and the guide section on the second mating block cooperate to form a conical inlet, and the limiting section on the first mating block and the limiting section on the second mating block cooperate to form a locking groove.
[0016] The resulting technical effect is that the second type of positioning buckle has an additional locking slot compared to the first type of positioning buckle. Since the heating process of the battery cover separator end face is prone to causing deformation of the positioning buckle at the edge, while the locking slot is less affected by the heating of the separator end face, it has reliable strength, thus ensuring the alignment effect between the battery cover separator and the battery slot. Attached Figure Description
[0017] Figure 1 This is a structural diagram of a lead-acid battery cover with positioning function according to the present invention;
[0018] Figure 2 This is a first type of positioning bracket structure diagram of a lead-acid battery cover with positioning function according to this utility model;
[0019] Figure 3 This is a second type of positioning bracket structure diagram of a lead-acid battery cover with positioning function according to this utility model;
[0020] Figure 4 This is an assembly drawing of a lead-acid battery cover with positioning function according to the present invention.
[0021] 1. Cover, 2. Partition, 21. First partition, 22. Second partition, 3. First positioning protrusion, 31. First positioning block, 32. Second positioning block, 33. Inlet section, 34. Horn-shaped inlet, 4. Second positioning protrusion, 41. First mating block, 42. Second mating block, 43. Guide section, 44. Limiting section, 45. Conical inlet, 46. Locking slot, 5. Battery slot. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] See appendix to this utility model Figures 1 to 4 According to an embodiment of the present invention, a lead-acid battery cover with a positioning function includes:
[0024] Cover 1, with multiple partitions 2 on the inner side of the cover 1 corresponding to the battery slot position, the end face of the partition 2 can be connected and fixed (adhesive) to the top face of the battery slot 5.
[0025] The positioning component includes a first type of positioning bracket 3 and a second type of positioning bracket 4. The first type of positioning bracket 3 and the second type of positioning bracket 4 are arranged in a row on the partition 2. The first type of positioning bracket 3 has a horn-shaped inlet 34, and the small diameter end of the horn-shaped inlet 34 is flush with the end face of the partition.
[0026] The second type of positioning bracket 4 is provided with a tapered inlet 45 and a locking slot 46. The locking slot 46 is a straight slot, and the end face of the partition 2 forms the bottom of the locking slot 46. The locking slot 46 is clamped on the top two sides of the battery slot.
[0027] It is understandable that when the end face of the heat separator is heated, the small-diameter end of the first type of positioning protrusion is easily affected by temperature, and the strength of this area changes. This can cause inaccurate positioning when aligning the battery slot.
[0028] The second type of positioning buckle has a slot that is not affected by the heating of the end face of the partition, so it can still stably align with the battery slot.
[0029] In other embodiments, the partition 2 includes a first partition 21 and a second partition 22. The cover 1 is provided with a plurality of first partitions 21 and a plurality of second partitions 22. The specific layout can be determined according to actual needs. A single first partition cannot guarantee positioning accuracy, while a single second partition is wasteful of material. Therefore, the first and second partitions are used together. The two types of positioning brackets are combined and reasonably arranged to achieve precise alignment between the battery compartment and the battery cover, ensuring the battery sealing effect. The first type of positioning bracket 3 is integrally formed on the first partition 21, and the second type of positioning bracket 4 is integrally formed on the second partition 22.
[0030] Specifically, the first type of positioning lever 3 includes a first positioning block 31 and a second positioning block 32. The first positioning block 31 and the second positioning block 32 are symmetrically arranged on both sides of the first partition 21. Both the first positioning block 31 and the second positioning block 32 are provided with an inlet section 33. The inlet section 33 is provided with a guide slope. The inlet section 33 extends out of the end face of the first partition 21. The guide slope on the first positioning block 31 and the guide slope on the second positioning block 32 cooperate to form a trumpet-shaped inlet 34.
[0031] More specifically, the second type of positioning lever 4 includes a first mating block 41 and a second mating block 42. The first mating block 41 and the second mating block 42 are symmetrically arranged on both sides of the second partition 22. The first mating block 41 and the second mating block 42 are each provided with a guide section 43 and a limiting section 44. The guide section 43 and the limiting section 44 extend out of the end face of the second partition 22. The guide section on the first mating block 41 and the guide section on the second mating block 42 cooperate to form a conical inlet 45. The limiting section on the first mating block 41 and the limiting section on the second mating block 42 cooperate to form a locking slot 46.
[0032] In practice, six second-type positioning bends are designed in the middle and four corners below the battery cover, while first-type positioning bends are used for guidance and positioning in other parts. The function of the second-type positioning bends is to correct the deformation of the battery case due to heating during heat sealing.
[0033] The apparatus and methods disclosed in the embodiments are described simply because they correspond to the methods disclosed in the embodiments. For relevant details, please refer to the method section.
[0034] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A lead-acid battery cover plate with positioning function, characterized in that, The utility model relates to a battery cover, which comprises: a cover (1) provided with a plurality of partitions (2) corresponding to the positions of battery slots on the inner side of the cover (1), the end face of the partition (2) can be fixedly connected with the top end face of the battery slot; a positioning assembly comprising first positioning prongs (3) and second positioning prongs (4), the first positioning prongs (3) and the second positioning prongs (4) are arranged in rows on the partitions (2) respectively, the first positioning prongs (3) are provided with a horn-shaped guide inlet (34), the small-diameter end of the horn-shaped guide inlet (34) is flush with the end face of the partition; the second positioning prongs (4) are provided with a tapered guide inlet (45) and a clamping groove (46), the clamping groove (46) is a flat groove, the end face of the partition (2) corresponds to the groove bottom of the clamping groove (46), and the clamping groove (46) is clamped on both sides of the top of the battery slot.
2. The lead-acid battery cover plate with positioning function according to claim 1, characterized in that, The partition (2) comprises a first partition (21) and a second partition (22), the cover (1) is provided with a plurality of first partitions (21) and a plurality of second partitions (22), the first positioning prongs (3) are integrally formed on the first partitions (21), and the second positioning prongs (4) are integrally formed on the second partitions (22).
3. The lead-acid battery cover plate with positioning function according to claim 2, characterized in that, The first positioning prongs (3) comprise first positioning blocks (31) and second positioning blocks (32), the first positioning blocks (31) and the second positioning blocks (32) are symmetrically arranged on both sides of the first partitions (21), the first positioning blocks (31) and the second positioning blocks (32) are provided with guide-in sections (33), the guide-in sections (33) are provided with guide inclined surfaces, the guide-in sections (33) extend out of the end face of the first partition (21), and the guide inclined surface on the first positioning block (31) cooperates with the guide inclined surface on the second positioning block (32) to form the horn-shaped guide inlet (34).
4. The lead-acid battery cover plate with positioning function according to claim 2, characterized in that, The second positioning prongs (4) comprise first matching blocks (41) and second matching blocks (42), the first matching blocks (41) and the second matching blocks (42) are symmetrically arranged on both sides of the second partitions (22), the first matching blocks (41) and the second matching blocks (42) are provided with guide sections (43) and limiting sections (44), the guide sections (43) and the limiting sections (44) extend out of the end face of the second partition (22), the guide section on the first matching block (41) cooperates with the guide section on the second matching block (42) to form the tapered guide inlet (45), and the limiting section on the first matching block (41) cooperates with the limiting section on the second matching block (42) to form the clamping groove (46).