Non-uniform electrolyte lead-acid storage battery

Abstract

The utility model discloses a non-uniform electrolyte lead-acid storage battery which comprises a shell, a plurality of adding openings are formed in the top of the shell, sealing covers are arranged at the tops of the adding openings, a cover plate is clamped on the shell and located on the outer sides of the adding openings, a plurality of battery assemblies are arranged in the shell, and movable plates are rotationally arranged in the adding openings. Two balance plates are evenly arranged at the bottom of the movable plate, and a plurality of ventilation grooves are formed in the inner side of the sealing cover and used for exhausting high-temperature gas in the shell. A plurality of battery assemblies are arranged in the shell, a heat conduction assembly connected with the battery assemblies is arranged in the shell, the heat conduction assembly comprises partition plates stacked with the battery assemblies, a heat conduction frame is arranged on the lower sides of the partition plates and the shell and is used for conducting out and dissipating heat in the storage battery, a lead angle part is arranged at the top of the adding opening, and a gap is formed between the lead angle part and the sealing cover. The non-uniform electrolyte lead-acid storage battery can quickly dissipate heat, the bulge phenomenon of the storage battery is improved, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to a lead-acid battery, particularly a non-uniform electrolyte lead-acid battery. Background Technology

[0002] A lead-acid battery is a type of rechargeable battery whose electrodes are primarily made of lead and its oxides, and whose electrolyte is a sulfuric acid solution. In the discharged state, the positive electrode is mainly composed of lead dioxide, and the negative electrode is mainly composed of lead; in the charged state, both the positive and negative electrodes are mainly composed of lead sulfate.

[0003] Most current lead-acid batteries use a valve-regulated sealed structure, where a one-way sealing valve at the top of the battery allows for the release of high-pressure gases. The battery structure is assembled using lead dioxide positive plates, lead negative plates, and sponge separators placed between the plates. A dilute sulfuric acid electrolyte is then filled below the busbars of the plates and separators. To replenish the moisture in the dilute sulfuric acid electrolyte, some batteries cover the area above the busbars of the plates and separators with a gel-like electrolyte to add moisture and reduce battery resistance.

[0004] Gel-based electrolytes and dilute sulfuric acid electrolytes have different chemical properties. Mixing them may lead to a chemical reaction, generating unstable substances that affect the stability of the electrolyte and could even cause hazards. Existing lead-acid batteries mostly use dilute sulfuric acid as the electrolyte. However, during battery use, high temperatures evaporate the water in the dilute sulfuric acid, easily causing the battery to bulge and affecting its charging and discharging performance. For these reasons, it is necessary to design a non-uniform electrolyte lead-acid battery that can quickly dissipate heat, improve battery bulging, and extend its service life. Utility Model Content

[0005] In view of the above-mentioned problems in the existing technology, the purpose of this utility model is to provide a non-uniform electrolyte lead-acid battery, which can achieve rapid heat dissipation, improve the battery bulging phenomenon, and extend the service life.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A non-uniform electrolyte lead-acid battery includes a casing, with multiple inlets on the top of the casing and a cover on the top of each inlet. Cover plates are snapped onto the outside of the multiple inlets on the casing. Multiple battery components are disposed inside the casing. A movable plate is rotatably disposed in each inlet. Two balance plates are evenly disposed at the bottom of the movable plate. Several ventilation slots are opened on the inner side of the cover for the discharge of high-temperature gases from the casing.

[0008] The housing is provided with a heat-conducting component connected to multiple battery modules. The heat-conducting component includes a partition stacked with the multiple battery modules. A heat-conducting frame is provided on the lower side of the housing and the partitions for heat dissipation from the batteries.

[0009] Preferably, the top of the inlet is provided with a chamfered portion, and a gap is provided between the chamfered portion and the cap to allow air to escape from the inlet.

[0010] Preferably, a plurality of ventilation slots are evenly distributed on the cover, and the lower end of the ventilation slots is connected to the cover.

[0011] Preferably, the movable plate is provided with a rotating shaft, and the balance plates are symmetrically arranged on both sides of the rotating shaft.

[0012] Preferably, the cover plate is provided with a retaining frame that cooperates with the housing on the side near the housing. The retaining frame has a vent on the upper side of the housing and is used to transfer the gas discharged from the inlet.

[0013] Preferably, the heat-conducting frame has an I-shaped structure, and the same heat-conducting plate is provided on the same side of the multiple partitions. A heat dissipation plate penetrating the housing is provided on one side of the heat-conducting plate. A heat-conducting clip is provided at the end of the battery assembly and the housing. The heat-conducting clip has a V-shaped structure. The partitions, heat-conducting plates and heat-conducting clips are all made of thermally conductive and insulating materials.

[0014] Preferably, a heat-conducting frame is fitted on one side of the battery assembly, and the heat-conducting frame is provided with a horizontal plate and a limiting plate that fit the battery assembly tightly. The heat-conducting frame is made of elastic insulating material.

[0015] Compared with existing technologies, the non-uniform electrolyte lead-acid battery provided by this utility model can quickly dissipate heat from inside the battery, improve the battery bulging phenomenon, and extend its service life. Specifically, the use of multiple battery component spacers, multiple external heat-conducting plates and heat dissipation plates in the battery can conduct heat out of the gaps between each battery component and transfer it to the outside of the battery, thus achieving heat dissipation from inside the battery. Furthermore, the use of heat-conducting frames and clips between the multiple battery components and the casing can fix the multiple battery components in place within the casing, increasing the connection strength between the casing and the multiple battery components, providing shock resistance to the battery components, facilitating the flow of electrolyte in the casing, reducing heat accumulation, improving the battery's heat dissipation effect, preventing battery bulging, and extending its service life.

[0016] Furthermore, the rotating mechanism of the movable plate in the inlet and the symmetrically arranged balance plates at the lower end of the movable plate allow the movable plate to be horizontally positioned in the inlet and normally closed. When the air pressure in the casing is high, the movable plate can be pushed to rotate through the rotating shaft, thereby opening the inlet, venting the high-pressure gas in the casing, reducing the pressure in the battery, improving the bulging phenomenon of the battery, enhancing the charging and discharging performance of the battery, and extending the battery's service life.

[0017] It should be understood that the general descriptions and details herein are exemplary and illustrative only and are not intended to limit this disclosure.

[0018] This application provides an overview of various implementations or exemplary embodiments of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the non-uniform electrolyte lead-acid battery of this utility model;

[0020] Figure 2 This is a partial exploded view of the casing and cover plate in the non-uniform electrolyte lead-acid battery of this utility model;

[0021] Figure 3 This is a partial structural cross-sectional view of the inlet and cap of the non-uniform electrolyte lead-acid battery of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the casing and multiple battery components in the non-uniform electrolyte lead-acid battery of this utility model;

[0023] Figure 5 This is a partial structural diagram of the heat-conducting plate and the casing in the non-uniform electrolyte lead-acid battery of this utility model;

[0024] Figure 6 This is an exploded view of the battery assembly and heat-conducting frame in the non-uniform electrolyte lead-acid battery of this utility model.

[0025] Key reference numerals:

[0026] 1. Shell; 11. Inlet; 111. Chamfered corner; 12. Cover; 121. Ventilation slot; 13. Battery assembly; 2. Cover plate; 21. Frame; 22. Ventilation opening; 3. Movable plate; 31. Rotating shaft; 32. Balance plate; 4. Heat conduction assembly; 41. Partition plate; 42. Heat conduction plate; 43. Heat dissipation plate; 44. Heat conduction clamp; 45. Heat conduction frame; 451. Horizontal plate; 452. Limiting plate; 46. Heat conduction bracket. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the embodiments of this disclosure will be described in more detail below with reference to the accompanying drawings. Note: The described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0028] As attached Figure 1 To be continued Figure 5 As shown, the non-uniform electrolyte lead-acid battery provided in this embodiment of the present invention is used for rapid heat dissipation in lead-acid batteries and for venting high-pressure gases in lead-acid batteries, thus preventing battery bulging. Applying existing non-uniform electrolyte lead-acid battery structural technology, the battery includes a casing 1 for structural encapsulation. The top of the casing 1 has multiple inlet ports 11 that communicate with the interior of the casing 1. The top of the inlet ports 11 is sealed by a cap 12, and the outer sides of the multiple inlet ports 11 are sealed with a common cover plate 2 for dust prevention. Next, multiple sets of battery assemblies 13 connected in series are arranged in the casing 1. Each battery assembly 13 consists of multiple stacked separators 41 and positive and negative electrode plates on both sides of the separators 41. The casing 1 is filled with dilute sulfuric acid electrolyte, allowing for charging and discharging using the positive and negative electrode plates. By rotating the movable plate 3 in the inlet 11 and evenly arranging the two balance plates 32 at the bottom of the movable plate 3, the movable plate 3 can be horizontally positioned in the inlet 11 and kept in a normally closed state. When the gas pressure in the housing 1 is high, the movable plate 3 can be pushed out of the inlet 11 to reduce the pressure in the housing 1, thereby venting the high-temperature gas in the housing 1 and preventing the housing 1 from bulging. Next, a heat-conducting component 4 connected to multiple battery components 13 can be set in the housing 1. By stacking the heat-conducting plates 42 in the heat-conducting component 4 with the multiple battery components 13, the heat generated during battery operation can be dissipated over a larger area. Through the use of multiple heat-conducting plates 42 and the heat-conducting frame 46 on the lower side of the housing 1, the battery components 13 can be suspended in the housing 1, increasing the smoothness of electrolyte flow, preventing direct contact between the battery components 13 and the housing 1, improving heat dissipation efficiency, achieving rapid heat dissipation of the battery's operating heat, and extending the battery's service life.

[0029] To facilitate the discharge of gas from inlet 11, such as Figure 4 As shown, the top of the inlet 11 can be set as a chamfered portion 111, and a certain gap is provided between the chamfered portion 111 and the cover 12 to facilitate the air in the inlet 11 to be discharged from the ventilation slot 121 through the gap, thus providing convenience for the heat dissipation of the battery.

[0030] Furthermore, when the ventilation groove 121 is opened on the cover 12, the lower end of the ventilation groove 121 is arranged to be connected to the cover 12 along the lower surface of the cover 12. The ventilation groove 121 is distributed opposite to the inlet 11, and multiple ventilation grooves 121 are evenly distributed on the cover 12, which provides favorable conditions for the uniform discharge of air in the inlet 11. The air introduced into the upper part of the inlet 11 can be discharged through multiple ventilation grooves 121, so that the cover 12 can both seal the inlet 11 and discharge the gas in the shell 1.

[0031] To facilitate the use of the movable plate 3 on the inlet 11, such as Figure 4 As shown, a rotating shaft 31 can be set on the movable plate 3, and the rotating shaft 31 passes through the straight line of the movable plate 3. The balance plate 32 is symmetrically arranged on both sides of the rotating shaft 31. The position of the balance plate 32 makes it convenient for the movable plate 3 to seal the inlet 11. The high temperature gas can be discharged by the push of the air below, and the inlet 11 can be opened by the push of the object above, so as to add electrolyte to the shell 1.

[0032] Even more advanced is, such as Figure 2 As shown, a locking frame 21 that engages with the housing 1 can be provided on the side of the cover plate 2 near the housing 1, and a vent 22 is provided on the locking frame 21. By setting the vent 22 on the upper side of the housing 1, it is convenient to transfer the gas discharged from multiple inlets 11, reduce the gas pressure in the housing 1, and prevent the battery from bulging.

[0033] In order to quickly dissipate the heat generated by the battery during operation, such as Figure 4 and 5 As shown, the heat-conducting frame 46 is configured as an I-shaped structure to facilitate the uniform use of electrolyte and prevent heat accumulation. Next, a heat-conducting plate 42 is set on the same side of multiple partitions 41. A heat dissipation plate 43 penetrating the housing 1 is set on one side of the heat-conducting plate 42. Both the partitions 41 and the heat-conducting plate 42 are made of thermally conductive and insulating materials such as metal oxide and ceramic, which respectively transfer the heat generated by multiple battery components 13 to the outside for heat dissipation. Next, a heat-conducting clip 44 can be set at the end of the battery component 13 and the housing 1. The heat-conducting clip 44 has a V-shaped structure. When the battery component 13 is installed in the housing 1, the heat-conducting clip 44 can be used to limit and clamp the end of the battery component 13, increasing the installation firmness of multiple battery components 13 in the housing 1. Through the use of the heat-conducting structure in the heat-conducting component 4, non-uniform heat dissipation of the working heat in the battery can be achieved.

[0034] To further improve heat dissipation efficiency, such as Figure 6As shown, a heat-conducting frame 45 can be fitted onto the outside of the battery assembly 13. By setting the horizontal plate 451 and the limiting plate 452 on the heat-conducting frame 45, it can be tightly fitted with the battery assembly 13, increasing the stability of the structure in the battery assembly 13, realizing all-round heat dissipation of the battery assembly 13, increasing the heat dissipation uniformity, and improving the heat dissipation efficiency. The heat-conducting frame 45 can be made of elastic insulating materials such as rubber and polytetrafluoroethylene, so that it can be used in the housing 1 and can also tighten the battery assembly 13, improving the battery performance.

[0035] Of course, the above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A non-uniform electrolyte lead-acid battery, comprising a casing (1), a plurality of inlet ports (11) being provided on the top of the casing (1), a cap (12) being provided on the top of the inlet ports (11), a cover plate (2) being snapped onto the casing (1) outside the plurality of inlet ports (11), and a plurality of battery components (13) being provided in the casing (1), characterized in that: A movable plate (3) is rotatably arranged in the inlet (11). Two balance plates (32) are evenly arranged at the bottom of the movable plate (3). Several ventilation slots (121) are opened on the inner side of the cover (12) for the discharge of high temperature gas in the shell (1). The housing (1) is provided with a heat-conducting component (4) connected to multiple battery components (13). The heat-conducting component (4) includes a partition (41) stacked with multiple battery components (13). The multiple partitions (41) and the lower side of the housing (1) are provided with a heat-conducting frame (46) for heat dissipation from the battery.

2. The non-uniform electrolyte lead-acid battery as described in claim 1, characterized in that, The top of the inlet (11) is provided with a chamfered part (111), and a gap is provided between the chamfered part (111) and the cover (12) for the air in the inlet (11) to be discharged.

3. The non-uniform electrolyte lead-acid battery as described in claim 1, characterized in that, Multiple ventilation slots (121) are evenly distributed on the cover (12), and the lower end of the ventilation slots (121) is connected to the cover (12).

4. The non-uniform electrolyte lead-acid battery as described in claim 1, characterized in that, The movable plate (3) is provided with a rotating shaft (31), and the balance plate (32) is symmetrically arranged on both sides of the rotating shaft (31).

5. The non-uniform electrolyte lead-acid battery as described in claim 1, characterized in that, The cover plate (2) is provided with a frame (21) that cooperates with the housing (1) on the side near the housing (1). The frame (21) has a vent (22) on the top and the vent (22) is located on the top side of the housing (1) for transferring the gas discharged from the inlet (11).

6. The non-uniform electrolyte lead-acid battery as described in claim 1, characterized in that, The heat-conducting frame (46) has an I-shaped structure. The same heat-conducting plate (42) is provided on the same side of the multiple partitions (41). A heat dissipation plate (43) penetrating the housing (1) is provided on one side of the heat-conducting plate (42). A heat-conducting clip (44) is provided at the end of the battery assembly (13) and the housing (1). The heat-conducting clip (44) has a V-shaped structure. The partitions (41), heat-conducting plates (42) and heat-conducting clips (44) are all made of thermally conductive and insulating materials.

7. The non-uniform electrolyte lead-acid battery as described in claim 1, characterized in that, A heat-conducting frame (45) is fitted on one side of the battery assembly (13). The heat-conducting frame (45) is provided with a horizontal plate (451) and a limiting plate (452) that fit tightly against the battery assembly (13). The heat-conducting frame (45) is made of elastic insulating material.

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