Grid for storage battery of golf cart
By designing the plate grating for golf cart batteries, the number and cross-sectional area of longitudinal rib strips are increased, and a nine-grid structure is formed, which solves the problem of battery failure caused by grid corrosion, improves the conductivity and corrosion resistance of grids, and extends the service life of the battery.
Patent Information
- Application Number
- CN202420029174.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-05
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-01-05
AI Technical Summary
During the charging and discharging cycle of golf cart batteries, the corrosion of the plate grid causes the battery to fail, and the existing plate grid structure is insufficient in strength and has poor corrosion resistance.
A plate grille for golf cart battery is designed. By increasing the number and cross-sectional area of longitudinal ribs, the structure of the ribs in the plate grille frame is changed, forming a nine-grid structure with thick and more longitudinal ribs and thin and fewer transverse ribs, enhancing the conductivity and corrosion resistance of the plate grille.
It improves the conductivity and corrosion resistance of the plate grid, shortens the current transmission path, and extends the service life of the golf cart battery.
Smart Images
Figure CN222562700U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of golf cart batteries, and specifically relates to a grid for golf cart batteries. Background Art
[0002] Golf cart batteries provide electric energy through plates, which are composed of active materials and grids. The active materials are pastes made of powdered lead powder, dilute sulfuric acid, water and additives. The grids are grid-like flat plates cast from lead alloys. The plates are plates made by coating the paste active materials on the grid-like grids and curing them at high temperatures. The active materials provide energy, and the grids are carriers of the active materials and conduct current. Golf cart batteries are generally used in a state of long-term discharge with a small current, which is different from the instantaneous discharge of large currents in car batteries. Therefore, the main reason for the failure of golf cart batteries is the corrosion of the grids during the charge and discharge cycle of the battery. The function of the grid in the battery is to support the active materials and conduct current so that the current is evenly distributed on the active materials. The general battery grid structure usually adopts a structure with few thick longitudinal ribs and many thin transverse ribs. During the charge and discharge cycle, as the sulfuric acid electrolyte corrodes the grid and the positive grid undergoes oxidation reaction, the grid ribs corrode and lose their conductivity, thus causing the battery to fail. Therefore, a new golf cart battery grid structure is invented to improve the strength and corrosion resistance of the grid to increase the life of the battery. Summary of the invention
[0003] The purpose of the utility model is to improve the strength of the grid and change the structure of the ribs in the grid frame to improve the corrosion resistance of the grid and increase the life of the battery.
[0004] The technical solution of the utility model is: a golf cart battery grid, including a golf cart battery grid consisting of an upper frame, a vertical frame, a lower frame, longitudinal ribs, transverse ribs and pole ears, and is characterized in that: the number of the longitudinal ribs is greater than the number of the transverse ribs; the cross-sectional area of the longitudinal ribs is greater than the cross-sectional area of the transverse ribs.
[0005] In the technical solution of the utility model, network ribs are additionally provided between the upper frame and the lower frame and between the vertical frames on both sides.
[0006] The network reinforcement described in the technical solution of the utility model includes horizontal network reinforcement and vertical network reinforcement.
[0007] The technical solution of the utility model includes two transverse network bars and two vertical network bars.
[0008] The cross-sectional shapes and areas of the upper frame, vertical frame, lower frame, horizontal network ribs and vertical network ribs described in the technical solution of the utility model are all the same.
[0009] The transverse network ribs and the vertical network ribs described in the technical solution of the utility model are symmetrically arranged, dividing the grid into 9 identical grid units, so that the entire grid frame forms a nine-square grid structure.
[0010] The grid unit described in the technical solution of the utility model includes 3 longitudinal ribs and 2 transverse ribs.
[0011] Between the grid unit described in the technical solution of the utility model and the adjacent grid units, the longitudinal ribs are opposite to each other, and the transverse ribs are opposite to each other.
[0012] The total cross-sectional area of the longitudinal ribs described in the technical solution of the utility model accounts for 18-22% of the total cross-sectional area of the electrode plate.
[0013] The total cross-sectional area of the longitudinal ribs described in the technical solution of the utility model accounts for 20% of the total cross-sectional area of the electrode plate.
[0014] The utility model adopts a grid for a golf cart battery composed of an upper frame, a vertical frame, a lower frame, longitudinal ribs, transverse ribs and pole ears, wherein the number of longitudinal ribs is greater than the number of transverse ribs, and the cross-sectional area of the longitudinal ribs is greater than the cross-sectional area of the transverse ribs, so that the entire grid has a structure with thick and numerous longitudinal ribs and thin and few transverse ribs, which changes the structure of a traditional grid with thin and numerous transverse ribs and few thick longitudinal ribs, increases the conductive area of the cross section of the longitudinal ribs on the grid, reduces the voltage drop of the grid, and transmits the current directly to the upper frame along the longitudinal ribs, shortens the current transmission path, and improves the conductivity of the grid. At the same time, the longitudinal ribs also play the role of active material carriers, which can extend the service life of the golf cart battery.
[0015] The utility model has the characteristics of improving the strength of the grid, improving the electrical conductivity of the grid, improving the corrosion resistance of the grid and prolonging the service life of the golf cart battery, and is mainly used for the grid of the golf cart battery. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the grid structure of the utility model.
[0017] Figure numerals: 1-ear, 2-upper frame, 3-lower frame; 4-vertical frame; 5-longitudinal ribs; 6-transverse ribs; 7-network ribs. DETAILED DESCRIPTION
[0018] The utility model is further described below in conjunction with the accompanying drawings.
[0019] like Figure 1 As shown, an embodiment of a grid for a golf cart battery of the utility model comprises an upper frame 2, a vertical frame 4, a lower frame 3, longitudinal ribs 5, transverse ribs 6, a pole ear 1 and a network rib 7. Among them, the upper frame 2, the vertical frame 4, the lower frame 3 and the pole ear 1 are the same as the existing grid for a golf cart battery. The upper frame 2 constitutes the upper frame of the grid, the lower frame 3 constitutes the lower frame of the grid, the vertical frame 4 constitutes the side frame of the grid, the pole ear 1 is used to connect the grid with the lead bus for conducting current, and the longitudinal ribs 5 and the transverse ribs 6 are used to support the active material and conduct current. The grid is made of lead alloy material. The heated and melted lead alloy is poured into the cavity mold. After the lead alloy is cooled, the mold is opened to form it.
[0020] Network ribs 7 are added between the upper frame 2 and the lower frame 3 and between the vertical frames 4 on both sides. The network ribs 7 are composed of transverse network ribs and vertical network ribs, wherein there are two transverse network ribs and two vertical network ribs. The two transverse network ribs and the two vertical network ribs are symmetrically arranged in the grid frame, dividing the grid into 9 identical grid units, so that the entire grid frame forms a nine-square grid structure, and the strength of the grid is improved. The cross-sectional shape and area of the upper frame 2, the vertical frame 4, the lower frame 3, the transverse network ribs and the vertical network ribs are the same.
[0021] Three longitudinal ribs 5 and two transverse ribs 6 are provided in each grid unit. The three longitudinal ribs in the grid unit are opposite to the three longitudinal ribs in the grid unit adjacent to it longitudinally, and the two transverse ribs 6 in the grid unit are opposite to the two transverse ribs 6 in the grid unit adjacent to it laterally. There are 9 longitudinal ribs 5 and 6 transverse ribs 6, and there are 3 more longitudinal ribs 5 than transverse ribs 6. The cross-sectional area of the longitudinal ribs 5 is larger than the cross-sectional area of the transverse ribs 6. The longitudinal ribs 5 are designed with thick ribs, and the transverse ribs 6 are designed with thin ribs. The total cross-sectional area of the longitudinal ribs 5 should account for 18-22% of the total cross-sectional area of the plate. In this embodiment, the total cross-sectional area of the longitudinal ribs 5 accounts for 20% of the total cross-sectional area of the plate.
[0022] The utility model changes the structure of the traditional grid with thin and numerous transverse ribs and coarse and few longitudinal ribs, increases the cross-sectional area of the longitudinal ribs 5, and increases the number of the longitudinal ribs 5, so that the cross-sectional area of the longitudinal ribs 5 accounts for about 20% of the cross-sectional area of the plate, and reduces the number of transverse ribs 6 at the same time, because in the grid, the main function of the transverse ribs 6 is the carrier of active substances. After the number of the longitudinal ribs 5 is increased, the longitudinal ribs 5 play the role of the carrier of active substances. After the structure of the plate ribs is changed, the active substances will not fall off. Computer-aided design is adopted to compare and analyze the potential and current distribution of the grid. The improved grid adopts a structure with coarse and numerous longitudinal ribs 5, increases the conductive area of the cross section of the longitudinal ribs 5 on the grid, and reduces the voltage drop of the grid. In addition, after the grid longitudinal ribs 5 are designed with coarse ribs and the number is increased, the current transmission direction is directly transmitted to the upper frame 2 along the longitudinal ribs 5, shortening the current transmission path, improving the conductivity of the grid, and improving the corrosion resistance of the grid, so as to improve the service life of the battery.
Claims
1. A golf cart battery grid, comprising an upper frame (2), a vertical frame (4), a lower frame (3), longitudinal ribs (5), transverse ribs (6) and a tab (1), wherein: The number of the longitudinal ribs (5) is greater than the number of the transverse ribs (6); the cross-sectional area of the longitudinal ribs (5) is greater than the cross-sectional area of the transverse ribs (6); and network ribs (7) are additionally provided between the upper frame (2) and the lower frame (3) and between the vertical frames (4) on both sides.
2. A golf cart battery grid according to claim 1, characterized in that: The network ribs (7) include transverse network ribs and vertical network ribs.
3. A golf cart battery grid according to claim 2, characterized in that: There are two transverse network bars and two vertical network bars respectively.
4. A golf cart battery grid according to claim 3, characterized in that: The cross-sectional shapes and areas of the upper frame (2), the vertical frame (4), the lower frame (3), the transverse network ribs and the vertical network ribs are all the same.
5. A golf cart battery grid according to claim 4, characterized in that: The horizontal network ribs and the vertical network ribs are symmetrically arranged to divide the grid into 9 identical grid units, so that the entire grid frame forms a nine-square grid structure.
6. A golf cart battery grid according to claim 5, characterized in that: The grid unit comprises three longitudinal ribs (5) and two transverse ribs (6).
7. A golf cart battery grid according to claim 6, characterized in that: Between the grid units and adjacent grid units, the longitudinal ribs (5) face each other, and the transverse ribs (6) face each other.
8. A golf cart battery grid according to any one of claims 1 to 7, characterized in that: The total cross-sectional area of the longitudinal ribs (5) accounts for 18-22% of the total cross-sectional area of the electrode plate.
9. A golf cart battery grid according to claim 8, characterized in that: The total cross-sectional area of the longitudinal ribs (5) accounts for 20% of the total cross-sectional area of the electrode plate.