Lead-acid storage battery plate group reinforcing structure
The design of the electrode support structure solves the problem of lead-acid battery electrode groups loosening during vibration, achieving higher vibration resistance and service life, simplifying the installation process, and optimizing space utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-03-06
AI Technical Summary
Traditional lead-acid battery electrode groups are prone to loosening and damage during vibration, resulting in poor vibration resistance and affecting service life and reliability.
The pole group support structure is adopted, including the upper fixed body at the top and the side wing support at the bottom, combined with the busbar limiting part, to form precise support and fixation for the pole group and prevent loosening during vibration.
It significantly improves the vibration resistance of lead-acid batteries, extends their service life, reduces maintenance and replacement costs, and improves space utilization and efficiency.
Smart Images
Figure CN223977899U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lead-acid battery technology, and more specifically to a lead-acid battery electrode group reinforcement structure. Background Technology
[0002] With the continuous development of new commercial vehicle models, the demands and installation methods for lead-acid batteries are also changing. Traditional lead-acid batteries face increasing challenges in modern commercial vehicles, especially due to changes in installation location and operating vibrations, which significantly increase the mechanical stress on lead-acid batteries during use. This increased mechanical stress causes serious damage to the core component of lead-acid batteries—the electrode group. The electrode group is a crucial component of lead-acid batteries, consisting of multiple plates that store and release electrical energy through electrochemical reactions. However, when the electrode group is subjected to excessive vibration, the plates are prone to breakage and detachment, leading to structural damage.
[0003] Damage to the electrode group structure not only reduces battery reliability but also shortens its lifespan, resulting in significant economic losses for users. To address this issue, previous designs typically employed brackets on both sides of the electrode group, clamping it between the battery casing and the brackets to prevent it from swaying during vibration. While this method improves the electrode group's vibration resistance to some extent, it still has significant shortcomings. With continuous vibration during vehicle operation, the brackets on both sides of the electrode group are prone to upward movement, leading to a decrease in clamping effectiveness and loosening of the electrode group. In this situation, the plates within the electrode group are more easily damaged under vibration, failing to effectively improve the battery's vibration resistance.
[0004] In view of the above problems, how to provide a new electrode group reinforcement structure that can ensure the electrode group fixation effect while avoiding the upward movement of traditional brackets, thereby ensuring the long-term reinforcement effect of the electrode group and significantly improving the vibration resistance and durability of lead-acid batteries, is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0005] This utility model aims to at least partially solve one of the aforementioned technical problems in the prior art.
[0006] Therefore, the purpose of this utility model is to propose a lead-acid battery electrode group reinforcement structure to solve the technical problem of poor electrode group reinforcement effect.
[0007] The technical solution of this utility model provides a lead-acid battery electrode group reinforcement structure, including:
[0008] The extreme group support is a frame with two upper fixed bodies extending upward at the top and two side wing supports that tilt outward to one side at the bottom;
[0009] Busbar limiting part, the top of the busbar group has the busbar limiting part;
[0010] The two pole group supports are located on both sides of the pole group. Each side wing support is away from the pole group and is limited by the corner of the corresponding battery compartment. Each upper fixing body is facing the busbar limiting part and is cooperated with the corresponding busbar limiting part to form support and fixation for both sides of the pole group.
[0011] According to the technical solution of this utility model, the pole group support includes a central ring and a plurality of transverse and longitudinal ribs connected to the central ring.
[0012] According to the technical solution of this utility model, the upper fixing body is fixed to the top of the pole group support by a connecting rod forming an L-shape with it, and the upper fixing body extends out of the top of the pole group support toward the busbar limiting part.
[0013] According to the technical solution of this utility model, the plane where the side wing support and the pole group support are connected is arranged at an angle of 120°-150°, which is a fan-shaped structure.
[0014] According to the technical solution of this utility model, the busbar limiting part is a wedge-shaped boss structure located at both ends of the inner side of the positive busbar and the negative busbar.
[0015] According to the technical solution of this utility model, the width of the pole group support is W and the height is H, and the width of the pole group is W1 and the height is H1, where W = W1 and H = H1.
[0016] According to the technical solution of this utility model, the distance between the two upper fixing bodies of the pole group support is L, and the distance between the two pole group busbars is L1, where L = L1 - 2 ~ 4 mm; the vertical height from the top surface of the upper fixing body to the lower end surface of the pole group support is D, and the vertical height from the top surface of the busbar limiting part to the lower end surface of the pole group support is D1, where D = D1; the height of the upper fixing body is F, and the height of the busbar limiting part is F1, where F = F1 + 2 ~ 5 mm; the width of the upper fixing body is G, and the height of the busbar limiting part is G1, where G = G1.
[0017] According to the technical solution of this utility model, the distance by which the upper fixing body bends towards the pole group is E, the distance between the two busbar limiting parts is E1, and the pole group thickness is δ1, where E = (δ1 - E1) × 1 / 2-(1~2)mm.
[0018] According to the technical solution of this utility model, the height of the side wing support is A, where A = (W2 - δ1) × 1 / 2+(1~3)mm.
[0019] As can be seen from the above technical solution, compared with the prior art, this utility model has the following technical effects:
[0020] This invention enhances vibration resistance: through the design of the electrode group support structure, including an upper fixed body at the top and side wing supports at the bottom, and the precise fit between the side wing supports and the battery compartment, this invention effectively limits the swaying of the electrode group during vibration. This not only prevents the plates from breaking or detaching due to vibration but also ensures the integrity of the electrode group structure, thereby significantly improving the overall vibration resistance of the lead-acid battery. Because this invention effectively prevents damage to the electrode group during vibration, it extends the battery's lifespan. This not only reduces the user's maintenance and replacement costs but also improves the battery's efficiency and economic benefits.
[0021] This invention improves installation efficiency: the reinforcement method provided by this invention is simple and easy to implement. Operators only need to follow the steps to correctly place and fix the pole group support. This design reduces the complexity and uncertainty of the installation process, improves work efficiency, and also reduces the risk of failure due to improper installation.
[0022] Meanwhile, this invention optimizes space utilization: by cleverly designing the shape and size of the electrode group support, this invention effectively reinforces the electrode group without increasing additional space occupation. This compact design helps improve the internal space utilization of the battery, leaving more space for other components or functions. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0024] Figure 1 A schematic diagram of the electrode group support and electrode group installation in a lead-acid battery electrode group reinforcement structure provided by this utility model;
[0025] Figure 2 A perspective view of the electrode group support in a lead-acid battery electrode group reinforcement structure provided by this utility model;
[0026] Figure 3 This utility model provides a front view of the electrode group support in a lead-acid battery electrode group reinforcement structure.
[0027] Figure 4A side view of the electrode group support in a lead-acid battery electrode group reinforcement structure provided by this utility model;
[0028] Figure 5 A top view of the electrode group support in a lead-acid battery electrode group reinforcement structure provided by this utility model;
[0029] Figure 6 The structure of the polar group is illustrated;
[0030] Figure 7 The structure of the battery compartment is illustrated.
[0031] Figure 8 This is a schematic diagram of the assembly of the electrode group support and the electrode group installed in the battery compartment. Detailed Implementation
[0032] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0033] Current technology uses brackets on both sides of the electrode group to clamp it together with the battery case walls to prevent it from swaying during vibration. However, with continuous vibration during vehicle operation, the brackets on both sides of the electrode group are prone to upward movement, resulting in a decrease in the clamping effect and loosening of the electrode group. Consequently, the plates in the electrode group are more easily damaged under vibration, failing to effectively improve the battery's vibration resistance.
[0034] In view of this, the present invention provides a reinforcement structure for lead-acid battery electrode groups, see appendix. Figure 1-8 The device includes: a pole group support 1, which is a frame with two upper fixing bodies 3 extending upward from the top and two side wing supports 2 tilted outward to one side at the bottom; and a busbar limiting part, which is located at the top of the pole group busbar; wherein, the two pole group supports 1 are located on both sides of the pole group, each side wing support 2 is away from the pole group and is limited by cooperating with the corner of the corresponding battery compartment 11, and each upper fixing body 3 is oriented towards the busbar limiting part and cooperates with the corresponding busbar limiting part to form support and fixation for both sides of the pole group.
[0035] The above-described solution, through the design of the electrode group support structure, including an upper fixed body at the top and side wing supports at the bottom, and the precise fit between the side wing supports and the battery compartment, effectively limits the swaying of the electrode group during vibration. This not only prevents the plates from breaking or detaching due to vibration but also ensures the integrity of the electrode group structure, thereby significantly improving the overall vibration resistance of the lead-acid battery. Because this invention effectively prevents damage to the electrode group during vibration, it extends the battery's service life. This not only reduces the user's maintenance and replacement costs but also improves the battery's efficiency and economic benefits.
[0036] See appendix Figure 2 and 3 In a specific embodiment of this utility model, the pole group support 1 includes a central ring and a plurality of transverse and longitudinal ribs connected to the central ring.
[0037] The term "connection" here should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above term in this utility model according to the specific circumstances.
[0038] Advantageously, the upper fixing body 3 is fixed to the top of the pole group support 1 by a connecting rod forming an L-shape with it, and the upper fixing body 3 extends out of the top of the pole group support 1 toward the busbar limiting part. The L-shape refers to the general shape and is not limited to two components connected vertically; it can also be inclined.
[0039] See the appendix for specific embodiments of this utility model. Figure 2 and 5 The plane where the side wing support 2 and the pole group support 1 are connected is arranged at an angle of 120°-150°, which facilitates contact with the corners of the battery compartment 11 and provides abutment support by utilizing the corners of the battery compartment. The side wing support has a fan-shaped structure, which makes it easy to place inside the battery compartment and at the same time prevents stress concentration at the contact corners.
[0040] See appendix Figure 6 The busbar limiting part is a wedge-shaped boss structure 4 located at both ends of the inner side of the positive busbar 6 and the negative busbar 5. The wedge-shaped boss structure faces the inner side of the busbar. The wedge design facilitates avoiding external installation. At the same time, the two wedges form an inward convergence form, which facilitates maintaining clamping force on the upper fixing body 3.
[0041] The structure of the electrode group generally includes 5 negative busbars, 6 positive busbars, 7 terminal posts, 8 positive electrode plates, 9 separators, and 10 negative electrode plates. This utility model does not change the other structures of the electrode group, but only adds wedge-shaped boss structures 4 to both ends of the inner sides of the negative busbars and positive busbars for ease of implementation.
[0042] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying 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, they should not be construed as limitations on this utility model.
[0043] The dimensional relationships between the pole group support, pole group bus, battery compartment, and pole group in the above scheme are as follows:
[0044] The width W and height H of the pole group support are the same as the width W1 and height H1 of the pole group's plate, respectively, i.e., W = W1, H = H1. When the pole group support is installed with the pole group, ensure that the pole group support is completely in contact with the pole plate on the side of the pole group.
[0045] The distance between the two upper fixing bodies 3 of the pole group support 1 is L (where L is the distance between the two upper fixing bodies from the outside to the outside), and the distance between the two pole group busbars is L1 (where L1 is the distance between the positive and negative busbars)). Where L = L1 - 2 ~ 4 mm, when the pole group support is installed with the pole group, it is convenient for the two upper fixing bodies at the top of the pole group support to be inserted into the inner side of the boss structure. The vertical height from the top surface of the upper fixing body 3 to the lower end surface of the pole group support 1 is D, and the vertical height from the top surface of the busbar limiting part to the lower end surface of the pole group support 1 is D1, where D = D1. When the pole group support is installed with the pole group, it is ensured that the upper fixing body on the pole group support rests on the inner side of the boss structure.
[0046] The height of the upper fixing body 3 is F, and the height of the busbar limiting part is F1, where F = F1 + 2~5mm; the width of the upper fixing body 3 is G, and the height of the busbar limiting part is G1, where G = G1.
[0047] The distance by which the upper fixing body 3 bends towards the pole group is E, the distance between the two busbar limiting parts is E1, and the thickness of the pole group is δ1. E = (δ1 - E1) × 1 / 2-(1~2)mm, it can be seen that E is determined based on the distance E1 between the two boss structures on the side of the busbar and the thickness δ1 of the electrode group. That is, after the two electrode group supports are installed into the battery compartment with the electrode group, the upper ends of the two electrode group supports clamp the upper part of the electrode group, thereby forming a fixation on the upper part of the electrode group.
[0048] The height of the side wing support 2 is A, where A = (W2 - δ1) × 1 / 2+(1~3)mm. It can be seen that A is determined based on the electrode group thickness δ1 and the battery case width W2. That is, after the two electrode group supports are installed into the battery case with the electrode group, the side wing supports at the lower end of the electrode group support clamp the lower end of the electrode group at the lower end of the inner corner of the battery case, thereby fixing the lower end of the electrode group.
[0049] like Figure 1 As shown, the upper fixing bodies on the two pole group supports are inserted from both sides of the pole group into the lower part of the upper boss structure of the pole group busbar. Then, the two pole group supports are placed against both sides of the pole group, ensuring that the lower end face of the two pole group supports is flush with the lower end face of the pole group. At this time, the upper fixing bodies on the two pole group supports are inserted into the inner side of the upper boss structure of the pole group busbar, forming a clamping state on the pole group.
[0050] like Figure 8 As shown, the electrode group and the two electrode group supports clamped on both sides are placed into the battery compartment and pressed into the bottom of the battery compartment. At this time, the side wing supports at the lower end of the electrode group are clamped to the lower end of the electrode group by the action of the four inner corners of the battery compartment, thereby fixing the lower end of the electrode group.
[0051] like Figure 8 As shown, the electrode groups in each individual battery cell are connected in series by through-wall welding of the electrode posts. The electrode groups in each cell are connected in series by through-wall welding points Q, and at the same time, the through-wall welding points Q fix the electrode groups in the vertical direction, preventing the vertical movement of the electrode groups during vibration.
[0052] By combining the protruding structure on the electrode group busbar with the upper fixing body, and the side wing support at the lower end of the electrode group support with the inner corner of the battery compartment, the electrode group support is made to fit against both sides of the electrode group, forming support and fixation on both sides of the electrode group, preventing horizontal movement perpendicular to the electrode plate surface.
[0053] The upper fixing body on both sides of the pole group support is inserted from the bottom of the protruding structure to the inside of the protruding structure. This prevents the pole group support from moving horizontally and vertically, thus solving the problem of the pole group support moving up, down, left, and right during battery vibration and maintaining the durability of the pole group support.
[0054] The reinforcement method for the lead-acid battery electrode group reinforcement structure of this utility model includes the following steps:
[0055] The upper fixing bodies of the two pole group supports are inserted from both sides of the pole group into the lower part of the busbar limiting part of the pole group. The two pole group supports are close to both sides of the pole group, and the lower end face of the two pole group supports is kept flush with the lower end face of the pole group. The upper fixing bodies are inserted into the inner side of the busbar limiting part of the pole group to form a clamping state on the pole group.
[0056] The electrode group and the two electrode group supports clamped on both sides are placed into the battery compartment and pressed into the bottom of the battery compartment. The side wing supports clamp the lower end of the electrode group under the action of the four inner corners of the battery compartment, thereby fixing the lower end of the electrode group.
[0057] Specifically, the cast-welded electrode groups are placed on a dedicated workbench. The upper fixing bodies on the two electrode group supports are inserted from both sides of the electrode group into the lower part of the boss structure on the electrode group busbar. Then, the two electrode group supports are placed against both sides of the electrode group, ensuring that the lower end faces of the two supports are flush with the lower end face of the electrode group. At this point, the upper fixing bodies on the two supports are inserted into the inner side of the boss structure on the electrode group busbar, forming a clamping state for the electrode group. The electrode group and its two supporting bodies are then placed into the battery compartment and pressed into the bottom of the battery compartment. The side wings at the lower end of the electrode group supports, under the action of the four inner corners of the battery compartment, clamp the lower end of the electrode group, thus fixing the lower end of the electrode group. The electrode groups in each individual battery cell are connected in series by through-wall welding of the terminal posts. Through the innovative design and fixing methods of the above-mentioned pole group support, pole group busbar protrusion structure and battery compartment, combined with the existing through-wall welding between pole groups, the three-dimensional fixing of the pole group is well achieved. The pole group can resist vibration and impact from any direction (X, Y, Z) and has excellent vibration resistance.
[0058] The data in the table below are vibration test data before and after adopting the above-mentioned pole group reinforcement method:
[0059]
[0060] The test results in the table show that the electrode group reinforcement measures of this invention significantly improve the vibration resistance of the battery electrode group, better meeting users' requirements for high vibration resistance performance and demonstrating significant social benefits. The battery's vibration resistance performance meets the requirements of the latest European battery V4 vibration test standard (three-dimensional random vibration).
[0061] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.
[0062] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A lead-acid battery pole group reinforcement structure, characterized by, include: The extreme group support (1) is a frame with two upper fixed bodies (3) extending upward at the top and two side wing supports (2) tilted outward to one side at the bottom; Busbar limiting part, the top of the busbar group has the busbar limiting part; Among them, the two pole group supports (1) are located on both sides of the pole group, each of the side wing supports (2) is away from the pole group direction and is limited by the corner of the corresponding battery compartment (11), and each of the upper fixing bodies (3) is facing the busbar limiting part and is cooperated with the corresponding busbar limiting part to form support and fixation on both sides of the pole group.
2. A lead-acid battery pole group reinforcement structure according to claim 1, characterized in that, The pole group support (1) includes a central ring and multiple transverse and longitudinal ribs connected to the central ring.
3. A lead-acid battery pole group reinforcement structure according to claim 1, wherein The upper fixing body (3) is fixed to the top of the pole group support (1) by a connecting rod that forms an L-shape with it, and the upper fixing body (3) extends out of the top of the pole group support (1) toward the busbar limiting part.
4. A lead-acid battery pole group reinforcement structure according to claim 1, wherein The plane where the side wing support (2) and the pole group support (1) are connected is arranged at an angle of 120°-150°.
5. A lead-acid battery pole group reinforcement structure according to claim 1, wherein The busbar limiting part is a wedge-shaped boss structure (4) located at both ends of the inner side of the positive busbar (6) and the negative busbar (5).
6. A lead-acid battery pole group reinforcement structure according to claim 1, wherein The width of the pole group support (1) is W and the height is H. The width of the pole group is W1 and the height is H1, where W = W1 and H = H1.
7. A lead-acid battery pole group reinforcement structure according to claim 6, characterised in that, The distance between the two upper fixing bodies (3) of the pole group support (1) is L, and the distance between the two pole group busbars is L1, where L = L1 - (2~4) mm; the vertical height from the top surface of the upper fixing body (3) to the lower end surface of the pole group support (1) is D, and the vertical height from the top surface of the busbar limiting part to the lower end surface of the pole group support (1) is D1, where D = D1; the height of the upper fixing body (3) is F, and the height of the busbar limiting part is F1, where F = F1 + (2~5) mm; the width of the upper fixing body (3) is G, and the height of the busbar limiting part is G1, where G = G1.
8. A lead-acid battery pole group reinforcement structure according to claim 6, wherein The distance by which the upper fixing body (3) bends toward the pole group is E, the distance between the two busbar limiting parts is E1, the thickness of the pole group is δ1, and E = (δ1-E1)×1 / 2-(1~2)mm.
9. A lead-acid battery pole group reinforcement structure according to claim 8, characterised in that, The height of the side wing support (2) is A, where A = (W2-δ1)×1 / 2+(1~3)mm.
10. A lead-acid battery pole group reinforcement structure according to any one of claims 1 to 9, characterised in that, The side wing support (2) is a fan-shaped structure.