A high rate discharge lead-acid battery grid

Abstract

This utility model relates to the field of power supply equipment technology, and in particular to a high-rate discharge lead-acid battery grid, including a frame and lugs connected to the frame, and multiple vertical ribs; the upper ends of each vertical rib approach the lugs and are fixedly connected to them; and the lower ends of each vertical rib are radially spaced on the frame; the frame has multiple first mounting grooves spaced apart for corresponding insertion of the lower ends of each vertical rib; when the vertical ribs expand due to heat, the lower ends of the vertical ribs slide within the first mounting grooves; and when the vertical ribs cool and contract, the lower ends of the vertical ribs do not detach from the openings of the first mounting grooves. This high-rate discharge lead-acid battery grid can effectively reduce the resistance of the lead-acid battery grid, improve the conductivity of the lead-acid battery grid, and prevent the lead-acid battery grid from arching due to thermal expansion and contraction.

Description

Technical Field

[0001] This utility model relates to the field of power supply equipment technology, and in particular to a high-rate discharge lead-acid battery grid. Background Technology

[0002] The grid plate of a lead-acid battery serves as the current-collecting framework, undertaking the triple functions of conducting current, supporting active materials, and maintaining the stability of the electrode structure. Existing lead-acid battery grid plate structures include... Figure 1 As shown, in the frame 100 of the lead-acid battery grid, the vertical ribs 200 and horizontal ribs 300 connected to the tabs 400 are arranged in a "horizontal and vertical" manner. This arrangement increases the resistance at the edge of the lead-acid battery grid, easily forming areas of concentrated current density. During high-current discharge, the potential difference between the central and edge areas can reach over 0.1V, affecting the overall battery performance. Furthermore, due to the repeated thermal expansion and contraction of the lead-acid battery during charging and discharging, the vertical ribs 200 and horizontal ribs 300 may arch and deform, which is one of the reasons for lead-acid battery deformation. Utility Model Content

[0003] Therefore, in view of the above problems, this utility model proposes a high-rate discharge lead-acid battery grid, which can effectively reduce the resistance of the lead-acid battery grid, improve the conductivity of the lead-acid battery grid, and prevent the lead-acid battery grid from arching and deforming due to thermal expansion and contraction.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A high-rate discharge lead-acid battery grid includes a frame and tabs connected to the frame;

[0006] It also includes multiple vertical reinforcing bars;

[0007] The upper ends of each of the vertical ribs are close to the location of the ear pole and are fixedly connected to the ear pole; and the lower ends of each of the vertical ribs are arranged radially and spaced on the frame.

[0008] The frame is provided with a plurality of first mounting grooves at intervals for corresponding insertion of the lower ends of each of the vertical ribs; when the vertical ribs are heated and expand, the lower ends of the vertical ribs slide in the first mounting grooves; and when the vertical ribs are cooled and contracted, the lower ends of the vertical ribs will not detach from the opening of the first mounting grooves.

[0009] Furthermore, the cross-section of the vertical rib is elliptical.

[0010] Furthermore, it also includes multiple transverse ribs, each of which has a corresponding through hole for inserting vertical ribs;

[0011] The frame is provided with a plurality of second mounting grooves at intervals for corresponding insertion of the two ends of each of the transverse ribs; when the transverse ribs are heated and expand, the lower end of the transverse ribs slides in the second mounting grooves; and when the transverse ribs are cooled and contracted, the two ends of the transverse ribs will not detach from the groove openings of the second mounting grooves.

[0012] Furthermore, the through holes of the horizontal ribs and the vertical ribs are installed with a clearance fit.

[0013] Furthermore, the cross-section of the vertical rib can also be triangular or rhomboid.

[0014] By adopting the aforementioned technical solution, the beneficial effects of this utility model are:

[0015] This high-rate discharge lead-acid battery grid features mounting grooves in its frame. When the vertical ribs expand or contract due to heat, there is room for expansion and contraction along their length within these grooves, preventing them from arching or deforming. Furthermore, the vertical ribs are designed to radiate towards the tabs, shortening the distance to the tabs. The preferred cross-section of the vertical ribs is elliptical, increasing the cross-sectional area, reducing their resistance, and improving the conductivity of the lead-acid battery grid.

[0016] By providing corresponding through holes for vertical ribs to pass through on the horizontal ribs, the horizontal ribs can support the vertical ribs without arching or deforming due to thermal expansion and contraction. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the existing lead-acid battery grid structure.

[0018] Figure 2 This is a schematic diagram of the grid structure of a high-rate discharge lead-acid battery plate according to this utility model.

[0019] Figure 3 yes Figure 2 A cross-sectional view of the structure at point A in the middle.

[0020] Figure 4 yes Figure 2 A cross-sectional view of the structure at point B in the middle.

[0021] Figure 5 yes Figure 2 A cross-sectional view of the structure at point C. Detailed Implementation

[0022] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0023] refer to Figure 2 , Figure 3 and Figure 4This embodiment provides a high-rate discharge lead-acid battery grid, including a frame 1 and tabs 4 connected to the frame 1.

[0024] It also includes multiple vertical reinforcing bars 2 and multiple horizontal reinforcing bars 3.

[0025] The upper ends of each of the vertical ribs 2 converge toward the ear pole 4 and are fixedly connected to it; and the lower ends of each of the vertical ribs 2 are radially spaced on the frame 1. Because the vertical ribs 2 are designed to converge radially toward the ear pole 4, the distance to the ear pole 4 is shortened. Furthermore, in this specific embodiment, preferably, the cross-section of the vertical rib 2 is elliptical, which, compared to the triangular or rhomboid cross-section of the vertical rib 2 in the prior art, increases the cross-sectional area.

[0026] Using the resistance calculation formula: R=ρ×L / S, it can be seen that the arrangement and shape of the vertical rib 2 can reduce the resistance of the vertical rib 2.

[0027] The frame 1 is provided with multiple first mounting slots 10 at intervals for corresponding insertion of the lower ends of each of the vertical ribs 2, such as... Figure 3 As shown in the figure, this embodiment only shows one first mounting groove 10 on the frame 1. Those skilled in the art should understand the opening method and position of the other first mounting grooves 10 based on this specification and the accompanying drawings. When the vertical rib 2 expands due to heat, the lower end of the vertical rib 2 slides in the first mounting groove 10; and when the vertical rib 2 cools and contracts, the lower end of the vertical rib 2 will not disengage from the opening of the first mounting groove 10.

[0028] like Figure 4 and Figure 5 As shown, each of the transverse ribs 3 has a corresponding through hole 30 for the vertical ribs 2 to pass through. The through holes of the transverse ribs 3 and the vertical ribs 2 are installed with a clearance fit. The frame 1 is provided with a plurality of second mounting grooves 11 at intervals for correspondingly passing through the two ends of each of the transverse ribs 3; when the transverse ribs 3 are heated and expand, the lower end of the transverse ribs 3 slides in the second mounting grooves 11; when the transverse ribs 3 are cooled and contracted, the two ends of the transverse ribs 3 will not disengage from the grooves of the second mounting grooves 11. This ensures that the transverse ribs 3 support the vertical ribs 2 without arching or deforming due to thermal expansion and contraction.

[0029] Through the above-mentioned improved technical solutions, this high-rate discharge lead-acid battery grid can effectively reduce the resistance of the lead-acid battery grid, improve the conductivity of the lead-acid battery grid, and prevent the lead-acid battery grid from arching and deforming due to thermal expansion and contraction, thus having good practicality.

[0030] Furthermore, the cross-section of the vertical rib 2 can also be triangular or rhomboid.

[0031] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A high-rate discharge lead-acid battery grid, comprising a frame and tabs connected to the frame, characterized in that: It also includes multiple vertical reinforcing bars; The upper ends of each of the vertical ribs are close to the location of the ear pole and are fixedly connected to the ear pole; and the lower ends of each of the vertical ribs are arranged radially and spaced on the frame. The frame is provided with a plurality of first mounting grooves at intervals for corresponding insertion of the lower ends of each of the vertical ribs; when the vertical ribs are heated and expand, the lower ends of the vertical ribs slide in the first mounting grooves; and when the vertical ribs are cooled and contracted, the lower ends of the vertical ribs will not detach from the opening of the first mounting grooves.

2. The high-rate discharge lead-acid battery grid according to claim 1, characterized in that: The cross-section of the vertical rib is elliptical.

3. The high-rate discharge lead-acid battery grid according to claim 1, characterized in that: It also includes multiple transverse ribs, each of which has a corresponding through hole for inserting vertical ribs; The frame is provided with a plurality of second mounting grooves at intervals for corresponding insertion of the two ends of each of the transverse ribs; when the transverse ribs are heated and expand, the lower end of the transverse ribs slides in the second mounting grooves; and when the transverse ribs are cooled and contracted, the two ends of the transverse ribs will not detach from the groove openings of the second mounting grooves.

4. The high-rate discharge lead-acid battery grid according to claim 3, characterized in that: The through holes of the horizontal ribs and the vertical ribs are installed with a clearance fit.

5. A high-rate discharge lead-acid battery grid according to claim 2, 3, or 4, characterized in that: The cross-section of the vertical rib can also be triangular or rhomboid.

Images