Lead storage battery and color chip structure thereof

By using a color-block structure to fit the battery cover and integrally cast with colored adhesive, the problem of poor appearance caused by the positive and negative markings of lead-acid batteries is solved, achieving convenient installation and stable connection, and reducing the appearance defect rate.

CN224138222UActive Publication Date: 2026-04-17ZHEJIANG NARADA POWER SOURCE CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG NARADA POWER SOURCE CO LTD
Filing Date
2025-03-05
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The use of epoxy resin adhesive for the positive and negative markings on existing lead-acid batteries has led to an increased rate of appearance defects, with bubbles affecting the appearance.

Method used

It adopts a color-block structure, which works with the battery cover through the limiting block and is integrally cast with color glue to prevent dust and debris from entering, thus achieving convenient installation and a stable connection.

Benefits of technology

It reduces the rate of defects in appearance, improves the ease of installation and the stability of connection, and prevents dust and debris from entering the inside of the battery cover.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a lead storage battery and its color chip structure relates to battery preparation technical field, including first spacing portion and the second spacing portion that is formed with first spacing portion integrated casting, the first spacing portion is equipped with the first through hole that is used for the copper core to pass through, the first through hole passes through the first spacing portion and the second spacing portion, and the second spacing portion is equipped with the second through hole that is used for the copper core to pass through. The diameter of the first limiting part is larger than that of the second limiting part, and the second limiting part is provided with a limiting block used for being matched with a battery cover. The color piece structure is formed by integrally pouring color glue, during installation, the second limiting part is matched with the battery cover through the limiting block, the first limiting part covers the connecting position of the battery cover and the second limiting part, dust and other sundries are prevented from falling into the battery cover, and on the basis that color identification is achieved on the positive electrode and the negative electrode, installation operation is convenient and fast; and the appearance reject ratio is reduced. The step is formed, so that the matched contact area of the first limiting part and the copper core is increased, and the stability of connection between the color chip structure and the copper core is improved.
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Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, specifically to lead-acid batteries and their color filter structures. Background Technology

[0002] Lead-acid batteries consist of positive and negative plates, electrolyte, and a container, used for charging and storing electrical energy. The plates are of two types: positive and negative, each composed of a grid and active material filled on it. In existing technology, the positive and negative polarities of lead-acid batteries are often marked with red and black epoxy resin adhesives. Red epoxy resin is injected into the positive terminal slot, and black epoxy resin is injected into the negative terminal slot; the difference in color indicates the positive and negative polarities. However, because epoxy resin is a two-component adhesive, varying degrees of air bubbles are generated on the surface of the epoxy resin during the curing process after mixing. This marking affects the appearance of the battery, increasing the rate of defects related to appearance. Utility Model Content

[0003] To address the technical problem that markings in existing technologies can affect the appearance of batteries, this utility model proposes a lead-acid battery and its color chip structure. The second limiting part cooperates with the battery cover through a limiting block, which, while serving as a color marking for the positive and negative electrodes, is easy to operate and reduces the occurrence of appearance defects.

[0004] The technical solution adopted by this utility model is as follows: a color sheet structure, including a first limiting part and a second limiting part integrally cast with the first limiting part, the first limiting part is provided with a first through hole for the copper core to pass through, the first through hole passes through the first limiting part and the second limiting part, the diameter of the first limiting part is larger than the diameter of the second limiting part, and the second limiting part is provided with a limiting block for cooperating with the battery cover.

[0005] The color-coded structure is integrally cast with color adhesive. During installation, the second limiting part cooperates with the battery cover through the limiting block, and the first limiting part covers the connection between the battery cover and the second limiting part to prevent dust and other debris from falling into the battery cover. In addition to color marking the positive and negative terminals, the installation operation is convenient and the occurrence of appearance defects is reduced.

[0006] Optionally, the first limiting part and the second limiting part are vertically connected, and there are multiple limiting blocks. The multiple limiting blocks are evenly spaced along the circumference of the second limiting part, and the limiting blocks are arranged along the axial direction of the second limiting part. The limiting blocks can be directly provided on the outer peripheral wall of the second limiting part, or the inner wall of the second limiting part can protrude from the outer wall to form the limiting blocks.

[0007] Optionally, the limiting block has a locking protrusion in the radial direction. The locking protrusion engages with a groove on the inner wall of the battery cover to limit the axial displacement between the color chip structure and the battery cover.

[0008] Optionally, the wall of the first through hole extends towards the direction of the second limiting part to form a step, the height of which is less than the height of the second limiting part. The formation of the step increases the contact area between the first limiting part and the copper core, thereby increasing the stability of the connection between the color sheet structure and the copper core.

[0009] This utility model also discloses a lead-acid battery, including a battery cover and the color sheet structure described above. The battery cover is provided with a plurality of limiting grooves that correspond one-to-one with the limiting blocks, and the groove wall of the limiting groove is provided with a locking groove that cooperates with the locking protrusion.

[0010] Optionally, the battery cover has a second through hole communicating with the first through hole, and a protruding ring is provided at one end of the battery cover facing the color sheet structure. The inner peripheral wall of the protruding ring is provided with the limiting groove, and the lower surface of the first limiting part abuts against the upper surface of the protruding ring.

[0011] Optionally, the inner diameter of the convex ring is larger than the diameter of the second through hole, and the outer diameter of the convex ring is smaller than the diameter of the first limiting portion. This prevents dust or other debris from falling into the second through hole.

[0012] Optionally, the protrusion is an arc-shaped protrusion, and the slot is an arc-shaped groove that mates with the protrusion. This facilitates the protrusion engaging with the slot.

[0013] The beneficial effects of this utility model are as follows: The color sheet structure is integrally cast with color adhesive. During installation, the second limiting part cooperates with the battery cover through the limiting block, and the first limiting part covers the connection between the battery cover and the second limiting part, preventing dust and other debris from falling into the battery cover. While providing color identification for the positive and negative terminals, the installation operation is convenient and the occurrence of appearance defects is reduced. The formation of the step increases the contact area between the first limiting part and the copper core, increasing the stability of the connection between the color sheet structure and the copper core. The inner diameter of the convex ring is larger than the diameter of the second through hole, and the outer diameter of the convex ring is smaller than the diameter of the first limiting part, which can effectively prevent dust or other debris from falling into the second through hole. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the color chip structure proposed in the embodiment of this utility model;

[0015] Figure 2 This is a schematic diagram of the color chip structure and battery cover proposed in an embodiment of this utility model.

[0016] The markings in the attached figures are as follows: 1. First limiting part; 11. First through hole; 12. Step; 2. Second limiting part; 21. Limiting block; 22. Snap protrusion; 3. Battery cover; 31. Limiting groove; 32. Snap groove; 33. Snap ring; 34. Second through hole; 4. Copper core. Detailed Implementation

[0017] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0018] like Figure 1 and 2 As shown, this embodiment discloses a color-coated sheet structure, including a first limiting part 1 and a second limiting part 2 integrally cast with the first limiting part 1. The first limiting part 1 has a first through hole 11 for the copper core 4 to pass through, and the first through hole 11 penetrates the first limiting part 1 and the second limiting part 2. The diameter of the first limiting part 1 is larger than the diameter of the second limiting part 2. The second limiting part 2 has a limiting block 21 for cooperating with the battery cover 3. The color-coated sheet structure is integrally cast with color adhesive. During installation, the second limiting part 2 cooperates with the battery cover 3 through the limiting block 21. The first limiting part 1 covers the connection between the battery cover 3 and the second limiting part 2 to prevent dust and other debris from falling into the battery cover 3. In addition to serving as positive and negative electrode color marking, it is easy to operate and reduces the occurrence of appearance defects.

[0019] In this embodiment, as Figure 1 As shown, the first limiting part 1 and the second limiting part 2 are vertically connected. There are multiple limiting blocks 21, which are evenly spaced along the circumference of the second limiting part 2. The limiting blocks 21 are also arranged along the axial direction of the second limiting part 2. The limiting blocks 21 can be directly disposed on the outer peripheral wall of the second limiting part 2, or the inner wall of the second limiting part 2 can protrude outwards to form the limiting blocks 21.

[0020] like Figure 1 As shown, the limiting block 21 has a locking protrusion 22 in the radial direction. The locking protrusion 22 cooperates with the locking groove 32 on the inner wall of the battery cover 3 to limit the axial displacement between the color chip structure and the battery cover 3.

[0021] like Figure 2 As shown, this utility model also discloses a lead-acid battery, including a battery cover 3 and the color chip structure described above. The battery cover 3 is provided with a plurality of limiting grooves 31 that correspond one-to-one with the limiting blocks 21. The groove wall of the limiting groove 31 is provided with a slot 32 that cooperates with the locking protrusion 22. The locking protrusion cooperates with the slot on the inner wall of the battery cover to limit the axial displacement between the color chip structure and the battery cover.

[0022] In this embodiment, as Figure 2 As shown, the battery cover 3 is provided with a second through hole 34 that communicates with the first through hole 11. The end of the battery cover 3 facing the color sheet structure is provided with a protruding ring 33. The inner peripheral wall of the protruding ring 33 is provided with the limiting groove 31. The lower surface of the first limiting part 1 abuts against the upper surface of the protruding ring 33.

[0023] In this embodiment, as Figure 2As shown, the inner diameter of the convex ring 33 is larger than the diameter of the second through hole 34, and the outer diameter of the convex ring 33 is smaller than the diameter of the first limiting part 1. This prevents dust or other debris from falling into the second through hole 34. The locking protrusion 22 is an arc-shaped protrusion, and the locking groove 32 is an arc-shaped groove that mates with the locking protrusion 22. This facilitates the locking protrusion 22 engaging with the locking groove 32.

[0024] like Figure 1 As shown, the wall of the first through hole 11 extends towards the direction of the second limiting part 2 to form a step 12, the height of which is less than the height of the second limiting part 2. The formation of the step 12 increases the contact area between the first limiting part 1 and the copper core 4, thereby increasing the stability of the connection between the color sheet structure and the copper core 4.

[0025] It is understood that the specific embodiments described above are merely for explaining the relevant utility model and not for limiting the utility model. It should also be noted that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not contradict or conflict with each other. All equivalent structural transformations made based on the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly included within the protection scope of this utility model.

Claims

1. A color chip structure, characterized by, It includes a first limiting part and a second limiting part integrally cast with the first limiting part. The first limiting part is provided with a first through hole for the copper core to pass through. The first through hole passes through the first limiting part and the second limiting part. The diameter of the first limiting part is larger than the diameter of the second limiting part. The second limiting part is provided with a limiting block for cooperating with the battery cover.

2. The color chip structure of claim 1, wherein The first limiting part and the second limiting part are vertically connected. There are multiple limiting blocks, which are evenly distributed around the second limiting part in the circumferential direction. The limiting blocks are arranged along the axial direction of the second limiting part.

3. The color chip structure of claim 1, wherein The limiting block has a locking protrusion along the radial direction.

4. The color chip structure of claim 1, wherein The wall of the first through hole extends toward the direction of the second limiting part to form a step, and the height of the step is less than the height of the second limiting part.

5. A lead storage battery characterized in that, The device includes a battery cover and the color chip structure as described in any one of claims 3 or 4. The battery cover is provided with a plurality of limiting grooves that correspond one-to-one with the limiting blocks, and the groove wall of the limiting groove is provided with a locking groove that cooperates with the locking protrusion.

6. The lead storage battery of claim 5 wherein, The battery cover has a second through hole that communicates with the first through hole. The end of the battery cover facing the color sheet structure has a protruding ring. The inner peripheral wall of the protruding ring has the limiting groove. The lower surface of the first limiting part abuts against the upper surface of the protruding ring.

7. The lead storage battery of claim 6 wherein, The inner diameter of the convex ring is larger than the diameter of the second through hole, and the outer diameter of the convex ring is smaller than the diameter of the first limiting part.

8. The lead storage battery of claim 5 wherein, The card protrusion is an arc-shaped protrusion, and the card groove is an arc-shaped groove that mates with the card protrusion.