Grid structure

Abstract

The utility model relates to the technical field of lead-acid storage batteries, in particular to a grid structure which comprises a main frame, a rib net arranged inside the main frame and a plate lug arranged outside the upper portion of the main frame. The two ends of the transverse ribs are fixedly connected with the left side wall and the right side wall of the main frame respectively, the transverse ribs are arranged at equal intervals in the length direction of the main frame, the two ends of the vertical ribs are fixedly connected with the upper side wall and the lower side wall of the main frame respectively, and the vertical ribs are arranged at equal intervals in the width direction of the main frame. And the width from one end of each vertical rib close to the plate lug to one end of each vertical rib far away from the plate lug is gradually reduced. According to the grid structure disclosed by the utility model, the corrosion resistance of one end, close to the plate lug, of each vertical rib is enhanced, so that the overall corrosion resistance of the grid structure is enhanced, the requirement of large-current discharge is met, and the service life of the grid structure is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of lead-acid batteries, and particularly relates to a grid structure. Background Art

[0002] A storage battery is a device that converts chemical energy into electrical energy. With the improvement of storage battery production technology, the degree of equipment automation has increased, and the production efficiency has increased. More and more batteries begin to use continuous casting grids. The continuous casting grid can make the grid thinner and lighter in weight, achieving the purpose of energy conservation and consumption reduction on the basis of meeting the battery performance. However, the existing grid has poor corrosion resistance. After the grid is corroded and damaged, it will seriously affect the service life of the storage battery. Therefore, there is an urgent need for a grid structure to solve the above problems. Content of the Utility Model

[0003] In order to solve the technical problem of poor corrosion resistance of the existing grid, the utility model provides a grid structure, the corrosion resistance of one end of the vertical rib near the grid ear is enhanced, thereby enhancing the overall corrosion resistance of the grid structure, meeting the requirements of high-current discharge, and improving the service life of the grid structure.

[0004] The utility model provides a grid structure, which includes a main frame, a rib mesh arranged inside the main frame, and grid ears arranged outside the upper part of the main frame. The rib mesh includes a plurality of horizontal ribs and vertical ribs arranged alternately. Both ends of each horizontal rib are respectively fixedly connected to the left side wall and the right side wall of the main frame, and the horizontal ribs are arranged at equal intervals along the length direction of the main frame. Both ends of each vertical rib are respectively fixedly connected to the upper side wall and the lower side wall of the main frame, and the vertical ribs are arranged at equal intervals along the width direction of the main frame. The width of each vertical rib gradually decreases from the end close to the grid ear to the end far from the grid ear.

[0005] Further, the grid ear is arranged deviating from the center line of the main frame, the grid ear is located on the left side of the main frame, and the width of the grid ear gradually increases from top to bottom. The grid ear is used for charging and discharging during use. When it is charging and discharging, the width of the grid ear gradually increases from top to bottom, so that the grid ear can discharge with high current.

[0006] Further, the widths of the plurality of vertical ribs gradually decrease from right to left.

[0007] Further, each of the vertical rib bars includes a plurality of vertical segments, and the widths of the plurality of vertical segments on each vertical rib bar gradually decrease from top to bottom; the widths of the first vertical segments of the two vertical rib bars on the left side from top to bottom are both 1.6 mm, the widths of the second vertical segments are both 1.4 mm, the widths of the third vertical segments are both 1.2 mm, the widths of the fourth vertical segments are both 1 mm, the widths of the fifth vertical segments are both 0.9 mm, and the widths of the remaining vertical segments are both 0.8 mm; the widths of the first vertical segments of the remaining vertical rib bars from top to bottom are both 1.3 mm, the widths of the second vertical segments are both 1.1 mm, the widths of the third vertical segments are both 1 mm, the widths of the fourth vertical segments are both 0.9 mm, the widths of the fifth vertical segments are both 0.9 mm, and the widths of the remaining vertical segments are both 0.8 mm. The multiple horizontal rib bars and vertical rib bars are arranged alternately, so each vertical rib bar is divided into a plurality of vertical segments by the multiple horizontal rib bars.

[0008] Further, the main frame, the rib bar network and the plate ear are integrally formed; a recessed groove is provided on one side of the main frame away from the plate ear, and rounded corners are provided at the four corners of the main frame. The designs of the recessed groove and the rounded corners make it easier to cut the grid structure and less likely to produce burrs.

[0009] Further, the distance between adjacent two vertical rib bars gradually increases from top to bottom. The purpose of such a setting is to facilitate the current to flow through the main frame and the rib bar network towards the plate ear direction, achieving the best current collection effect, thereby preventing current accumulation in the area far from the plate ear and further improving the service life of the grid structure.

[0010] Further, the width of the horizontal rib bar gradually decreases from top to bottom. The corrosion resistance of some of the horizontal rib bars close to the plate ear is enhanced, thereby enhancing the overall corrosion resistance of the grid structure and further improving the service life of the grid structure.

[0011] Compared with the prior art, the present utility model has the following technical effects:

[0012] The width of the vertical rib bar of the present utility model gradually decreases from the end close to the plate ear to the end far from the plate ear, which enhances the corrosion resistance of the end of the vertical rib bar close to the plate ear, thereby enhancing the overall corrosion resistance of the grid structure, meeting the requirements of large current discharge, and improving the service life of the grid structure. At the same time, the overall weight of the grid structure is reduced, and the multiple horizontal rib bars further ensure the structural stability of the grid structure. Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of a grid structure according to Embodiment 1 of the present utility model;

[0014] Figure 2 is the structural schematic diagram of A in the first embodiment of the present utility model Figure 1 ;

[0015] Figure 3 is the structural schematic diagram of multiple grid structures in the first embodiment of the present utility model

[0016] Figure 4 is the structural schematic diagram of B in the first embodiment of the present utility model Figure 3 ;

[0017] Figure 5 is the structural schematic diagram of a grid structure in the second embodiment of the present utility model

[0018] Figure 6 is the structural schematic diagram of a grid structure in the third embodiment of the present utility model

[0019] The reference numerals in the drawings are as follows

[0020] 1, main frame; 11, recessed groove; 12, rounded corner

[0021] 2, horizontal rib

[0022] 3, vertical rib; 4, tab Detailed implementation manners

[0023] The present utility model will be further described below in conjunction with the drawings and specific implementation manners

[0024] As Figures 1 to 4 shown, in the first embodiment, a grid structure includes a main frame 1, a rib network arranged inside the main frame 1, and a tab 4 arranged outside the upper part of the main frame 1. The rib network includes multiple horizontal ribs 2 and vertical ribs 3 arranged in a staggered manner. Both ends of each horizontal rib 2 are respectively fixedly connected to the left side wall and the right side wall of the main frame 1. The horizontal ribs 2 are arranged at equal intervals along the length direction of the main frame 1. Both ends of each vertical rib 3 are respectively fixedly connected to the upper side wall and the lower side wall of the main frame 1. The vertical ribs 3 are arranged at equal intervals along the width direction of the main frame 1. The width of each vertical rib 3 gradually decreases from the end close to the tab 4 to the end far from the tab 4. Generally, a lead paste needs to be applied on the grid structure to make a plate, and finally the plate is assembled with components such as electrolyte and an external housing to form a storage battery

[0025] First, the grid structure is used for charging and discharging. When it is charging and discharging, the amount of electricity conducted at one end of the vertical rib 3 close to the plate ear 4 is greater than that at the end of the vertical rib 3 far from the plate ear 4. The end of the vertical rib 3 close to the plate ear 4 is for large-current discharging. Therefore, after long-term use, the corrosion suffered by the end of the vertical rib 3 close to the plate ear 4 is greater than that suffered by the end of the vertical rib 3 far from the plate ear 4. And in this embodiment, the width of the vertical rib 3 of the grid structure gradually decreases from top to bottom. Specifically, the width gradually decreases from the end of the vertical rib 3 close to the plate ear 4 to the end of the vertical rib 3 far from the plate ear 4. This enhances the corrosion resistance of the end of the vertical rib 3 close to the plate ear 4, thereby enhancing the overall corrosion resistance of the grid structure, meeting the requirements of large-current discharging, and improving the service life of the grid structure. At the same time, the overall weight of the grid structure is reduced, and multiple horizontal ribs 2 further ensure the structural stability of the grid structure.

[0026] As an implementable manner, the plate ear 4 is disposed deviating from the vertical center line of the main frame 1, the plate ear 4 is located on the left side of the main frame 1, and the width of the plate ear 4 gradually increases from top to bottom. In this embodiment, the plate ear 4 is disposed on the left side outside the main frame 1, and the width of the plate ear 4 gradually increases from top to bottom. The plate ear 4 is used for charging and discharging. When it is charging and discharging, the width of the plate ear 4 gradually increases from top to bottom, enabling the plate ear 4 to perform large-current discharging.

[0027] As an implementable manner, the widths of multiple vertical ribs 3 gradually decrease from right to left. Since the plate ear 4 is disposed on the left side outside the main frame 1, in this embodiment, the widths of multiple vertical ribs 3 gradually decrease from right to left. The width of the vertical rib 3 on the right side is greater than that of the vertical rib 3 on the left side. Such a design is to enhance the structural strength of the grid structure.

[0028] As an implementable manner, referring to Figure 1 , each vertical rib 3 includes multiple vertical segments, and the widths of multiple vertical segments on each vertical rib 3 gradually decrease from top to bottom. Since multiple horizontal ribs 2 and vertical ribs 3 are arranged in an interleaved manner, each vertical rib 3 is divided into multiple vertical segments by multiple horizontal ribs 2.

[0029] Specifically, in this embodiment, there are 6 vertical ribs 3. In this implementation, the widths of the two vertical ribs 3 on the left side are in one group, and the remaining 4 vertical ribs 3 are in one group. Among them, the width of the first vertical segment from top to bottom of the two vertical ribs 3 on the right side is 1.6 mm, the width of the second vertical segment is 1.4 mm, the width of the third vertical segment is 1.2 mm, the width of the fourth vertical segment is 1 mm, the width of the fifth vertical segment is 0.9 mm, and the widths of the remaining vertical segments are all 0.8 mm.

[0030] The widths of the first vertical segments of the remaining 4 vertical rib strips 3 located on the left side from top to bottom are all 1.3 mm, the widths of the second vertical segments are all 1.1 mm, the widths of the third vertical segments are all 1 mm, the widths of the fourth vertical segments are all 0.9 mm, the widths of the fifth vertical segments are all 0.9 mm, and the widths of the remaining vertical segments are all 0.8 mm. The vertical rib strips 3 of this embodiment are designed in this way to enhance the structural strength of the grid structure, and at the same time enhance the corrosion resistance of the vertical rib strips 3, and also meet the requirements of large current discharge.

[0031] As an implementable way, refer to Figure 1 , the main frame 1, the rib mesh and the tab 4 are integrally formed. Specifically, refer to Figure 3 , the main frame 1, the rib mesh and the tab 4 are made by the punching process. Generally, after the original sheet material undergoes the punching process, multiple grid structures are formed at one time. Refer to Figure 3 , and the multiple grid structures are connected. The multiple grid structures need to be cut by an external cutting machine to be separated.

[0032] As an implementable way, a recessed groove 11 is provided on the side of the main frame 1 of the grid structure away from the tab 4, and rounded corners 12 are provided at the four corners of the main frame 1. Among them, the recessed groove 11 and the rounded corners 12 of this embodiment are also integrally formed when the grid structure is manufactured. Refer to Figure 3 and Figure 4 , a connecting strip is connected between the recessed grooves 11 of two adjacent grid structures, and the connecting strip connects the outer side walls of two adjacent grid structures. When the grid structure is manufactured, the external cutting machine needs to cut off the connecting strip, and the external cutting machine also needs to cut open the connection points of the outer side walls of two adjacent grid structures. The design of the recessed groove 11 and the rounded corners 12 makes it easier to cut two adjacent grid structures and not easy to produce burrs. Of course, the tabs 4 of two adjacent grid structures are also connected, and the external cutting machine needs to cut the tabs 4 of two adjacent grid structures.

[0033] As Figure 5 shown, in Embodiment 2, a grid structure, which is different from Embodiment 1 in that the distance between two adjacent vertical rib strips 3 gradually increases from top to bottom. The distance between two adjacent vertical rib strips 3 of the grid structure in this embodiment gradually increases from top to bottom, aiming to facilitate the current to flow through the main frame 1 and the rib mesh to the tab 4 direction, achieving the best current collection effect, so as to prevent current accumulation in the area far from the tab 4 and further improve the service life of the grid structure.

[0034] As Figure 6As shown in the figure, in the third embodiment, a grid structure is provided. Different from the first embodiment, the widths of multiple said horizontal rib strips 2 gradually decrease from top to bottom. Specifically, the corrosion resistance of some of the horizontal rib strips 2 near the plate ear 4 is enhanced, thereby enhancing the overall corrosion resistance of the grid structure and further improving the service life of the grid structure.

[0035] The above embodiments are only preferred embodiments of the present invention, which are only used to explain the present invention and do not limit the scope of implementation of the present invention. For those skilled in the art of this technology, of course, other implementation methods can be easily made by means of replacement or change according to the technical content disclosed in this specification. Therefore, all changes and improvements made in the principles and process conditions of the present invention should be included within the scope of the patent application of the present invention.

Claims

1. A grid structure, comprising a main frame (1), a rib net arranged inside the main frame (1), and a plate ear (4) arranged outside the main frame (1), characterized in that: The rib net comprises a plurality of transverse ribs (2) and vertical ribs (3) arranged in a staggered manner, the two ends of the transverse ribs (2) being respectively fixedly connected to the left side wall and the right side wall of the main frame (1), the transverse ribs (2) being arranged at equal intervals along the length direction of the main frame (1), the two ends of the vertical ribs (3) being respectively fixedly connected to the upper side wall and the lower side wall of the main frame (1), the vertical ribs (3) being arranged at equal intervals along the length direction of the main frame (1), and the width of each vertical rib (3) gradually decreases from one end of the vertical rib (3) close to the plate ear (4) to one end of the vertical rib (3) far from the plate ear (4).

2. The grid structure according to claim 1, characterized in that: The plate ear (4) is arranged to deviate from the center line of the main frame (1), the plate ear (4) is located on the left side of the main frame (1), and the width of the plate ear (4) gradually increases from top to bottom.

3. The grid structure according to claim 1, characterized in that: The widths of the plurality of vertical ribs (3) gradually decrease from right to left.

4. The grid structure according to claim 3, characterized in that: Each of the vertical ribs (3) comprises a plurality of vertical segments, and the widths of the plurality of vertical segments on each of the vertical ribs (3) gradually decrease from top to bottom; the widths of the first vertical segments of the two vertical ribs (3) located on the left side from top to bottom are both 1.6 mm, the widths of the second vertical segments are both 1.4 mm, the widths of the third vertical segments are both 1.2 mm, the widths of the fourth vertical segments are both 1 mm, the widths of the fifth vertical segments are both 0.9 mm, and the widths of the remaining vertical segments are all 0.8 mm; the widths of the first vertical segments of the remaining vertical ribs (3) from top to bottom are all 1.3 mm, the widths of the second vertical segments are all 1.1 mm, the widths of the third vertical segments are all 1 mm, the widths of the fourth vertical segments are both 0.9 mm, the widths of the fifth vertical segments are both 0.9 mm, and the widths of the remaining vertical segments are all 0.8 mm.

5. The grid structure according to claim 1, characterized in that: The main frame (1), the rib net and the plate ear (4) are integrally formed; a concave groove (11) is provided on a side of the main frame (1) away from the plate ear (4), and four corners of the main frame (1) are all provided with rounded corners (12).

6. The grid structure according to claim 1, characterized in that: The distance between two adjacent vertical ribs (3) gradually increases from top to bottom.

7. The grid structure according to claim 1, characterized in that: The widths of the plurality of transverse ribs (2) gradually decrease from top to bottom.

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