Splicing support unit, support monomer and support module of cylindrical battery

Abstract

The utility model discloses a splicing support unit, a support monomer and a support module of a cylindrical battery, the radial cross section of the support unit is hexagonal, the support unit is provided with a mounting hole for mounting the cylindrical battery or a battery cell, the top of the support unit is also provided with a pole through hole and a welding hole which are communicated with the mounting hole, and the pole through hole is communicated with the welding hole. The welding holes are located in the peripheral side of the pole through hole, a notch groove is formed in the inner side wall, located on one side of the welding holes, of the support unit, and a plug-in protrusion and / or a plug-in groove are / is arranged on the side face of the support unit. The beneficial effects are that the support unit employs a hexagonal cross section, the side surface is provided with the plugging projection and / or the plugging groove, the assembly is convenient, the side wall of one side close to the welding hole is provided with the notch groove, the bending area of the current-carrying sheet can be effectively accommodated, and the welding area is increased.

Description

Technical Field

[0001] This utility model relates to the field of cylindrical battery technology, specifically to a cylindrical battery splicing bracket unit, bracket unit, and bracket module. Background Technology

[0002] Cylindrical batteries are finding increasingly wider applications. However, individual cylindrical cells typically have relatively small voltage and capacity. When used as power batteries or energy storage batteries, multiple cells need to be connected in series and parallel to form a battery pack to achieve larger capacity and voltage. When assembling several cylindrical cells into a battery pack, the cells need to be mounted and fixed using a support frame, and series and parallel connections are achieved by welding current-carrying plates to the positive or negative electrodes.

[0003] Existing cell support structures are generally one-piece injection-molded structures, which cannot be disassembled and installed. Each cell support can only accommodate one cell module. Furthermore, welding the positive or negative electrode to the current-carrying plate often requires bending the current-carrying plate, especially in the series and parallel connection of cylindrical cells with the same electrode orientation. Typically, the terminal post serves as the negative electrode, and the casing as the positive electrode. When welding the current-carrying plate to the terminal post and casing, the current-carrying plate must be bent so that it can be welded to the casing around the terminal post. This also means that the current-carrying plate must be bent into the cell mounting hole within the support structure, resulting in a reduction in the welding area of ​​the positive electrode welding zone. In addition, existing cell support structures often lack a structure to fix the total positive or negative terminal post, requiring an additional fixing structure for the total positive or negative terminal post. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a splicing support unit, a support unit, and a support module for cylindrical batteries. The support unit has a hexagonal cross-section and is provided with insertion protrusions and / or insertion grooves on its sides for easy assembly. A notch is provided on the side wall near the welding hole to effectively accommodate the bending area of ​​the current-carrying plate and increase the welding area. The support unit integrates a fixing platform for easy fixing of the overall positive or negative electrode tabs. The support unit and the support unit can be combined to form a support module as a splicing unit, resulting in high splicing efficiency.

[0005] The purpose of this utility model is achieved through the following technical measures: a splicing bracket unit for a cylindrical battery, wherein the radial cross section of the bracket unit is hexagonal, the bracket unit is provided with mounting holes for mounting cylindrical batteries or cells, the top of the bracket unit is also provided with a terminal through hole and a welding hole communicating with the mounting holes, the welding hole is located on the periphery of the terminal through hole, a notch is provided on the inner side wall of the bracket unit located on the side of the welding hole, and the side of the bracket unit is provided with a plug-in protrusion and / or a plug-in groove.

[0006] In some embodiments, the through hole of the pole post is provided with an annular retaining edge in the circumferential direction.

[0007] In some embodiments, the support unit is further provided with a support baffle, the two ends of which are connected to the annular baffle and the support unit respectively, and the support baffle is provided with a positioning pin.

[0008] In some embodiments, the support unit is further provided with a temperature detection port, which is located close to the welding hole and isolated from the welding hole by a retaining edge.

[0009] A single splicing bracket for a cylindrical battery, the bracket unit comprising the bracket unit, the bracket unit having a fixing platform on its side, and the fixing platform having a nested nut on its side.

[0010] A splicing bracket module for cylindrical batteries, the bracket module comprising multiple bracket units, or comprising multiple bracket units and a single bracket unit.

[0011] In some embodiments, when the support module includes multiple support units and support units, there is at least one support unit and at least one support unit. When there are multiple support units, the support units are arranged in a single row or multiple rows. When they are arranged in multiple rows, adjacent rows are staggered.

[0012] In some embodiments, the support unit is located at the end of the support unit row.

[0013] In some embodiments, when the support units are arranged in multiple rows, the support unit is located at the end of the row of the recessed row, and the end of the support unit fixing platform is flush with the protruding end of the row of the protruding row.

[0014] In some embodiments, the support module is a one-piece molded structure.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: The support unit disclosed in this utility model has a notch groove on the inner side wall of the support unit near the positive electrode welding hole, which can move the bending area of ​​the current-carrying plate into the notch groove, so that the weldable area of ​​the positive electrode avoids the bending point of the current-carrying plate, increasing the usable welding area of ​​the annular welding area on the side edge of the electrode post. An annular retaining edge is provided to insulate the positive and negative electrodes, a positioning pin is provided to limit the current-carrying plate, and a temperature detection port is provided to facilitate the installation of the temperature sensor. This utility model also discloses a support unit, which integrates a fixing platform on the support unit and has nested nuts on the side of the fixing platform for fixing the total positive or total negative electrode lugs. The support unit and the support unit can be spliced ​​to form a support module, and the support module is used as the splicing unit to improve splicing efficiency. When the support unit and the support unit are used as splicing units in the form of a support module, the support unit is placed at the end of the recessed row, so that the fixing platform is located within the space generated by the staggered edge, making full use of space and improving space utilization.

[0016] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of the support unit.

[0018] Figure 2 This is a structural diagram of a single support unit, where a represents the fixing platform being positioned away from the notch, and b represents the fixing platform being positioned close to the notch.

[0019] Figure 3 This is a structural diagram of the bracket module assembly.

[0020] Figure 4 yes Figure 3 Enlarged view of part A in the middle.

[0021] Figure 5 This is a structural schematic diagram of support module two.

[0022] Figure 6 This is a structural schematic diagram of bracket module three.

[0023] Figure 7 This is a structural diagram of the first assembly form of the bracket module.

[0024] Figure 8 This is a structural schematic diagram of the second assembly form of the bracket module.

[0025] Figure 9 This is a structural diagram of the first assembly form of the support module.

[0026] Figure 10 This is a structural diagram of the second assembly form of the support module three.

[0027] Figure 11 This is a structural diagram of a support module with two individual support units.

[0028] Figure 12 This is a schematic diagram of the structure after multiple support modules are spliced ​​together.

[0029] Among them, 1. notch groove, 2. pole post through hole, 3. welding hole, 4. insertion protrusion, 5. insertion groove, 6. positioning pin, 7. temperature detection port, 8. fixing platform, 9. nested nut, 10. current-carrying plate. Detailed Implementation

[0030] like Figures 1 to 12As shown, a splicing bracket unit for a cylindrical battery is disclosed. The bracket unit has a hexagonal radial cross-section and mounting holes for installing cylindrical batteries or cells. The top of the bracket unit also has through holes 2 and 3 communicating with the mounting holes. The through holes 2 expose the terminals for welding to the current-carrying plates 10. The 3 holes expose the positive electrode housing for welding to the current-carrying plates 10. The 3 holes are located around the through holes 2. A notch 1 is provided on the inner wall of the bracket unit located on one side of the 3 holes. The notch 1 accommodates the bending area of ​​the current-carrying plates 10. The sides of the bracket unit have insertion protrusions 4 and / or insertion grooves 5. Adjacent bracket units are spliced ​​together through the insertion protrusions 4 and insertion grooves 5. This disclosure provides a notch 1 on the inner wall of the support unit near the positive electrode welding hole 3, which can move the bending area of ​​the current-carrying plate 10 into the notch 1, so that the weldable area of ​​the positive electrode avoids the bending point of the current-carrying plate 10, thereby increasing the usable welding area of ​​the annular welding area on the edge of the electrode post without affecting the current-carrying capacity of the current-carrying plate 10.

[0031] In some embodiments, the through hole 2 of the pole post is provided with an annular baffle in the circumferential direction, and the negative pole post and the positive pole welding area are isolated by the annular baffle, so that the positive and negative poles are insulated.

[0032] In some embodiments, the support unit is further provided with a support baffle, the two ends of which are connected to an annular baffle and the support unit respectively, and the support baffle is provided with a positioning pin 6. When performing series and parallel connection, the positioning pin 6 can be inserted into the positioning hole of the current carrier plate 10 to limit the position of the current carrier plate 10.

[0033] In some embodiments, the support unit is further provided with a temperature detection port 7, which is located near the welding hole 3 and separated from the welding hole 3 by a retaining edge. Connecting the temperature sensor to the cylindrical battery through the temperature detection port 7 avoids the assembly difficulties caused by fixing the temperature sensor to the side of the cylindrical battery in the prior art.

[0034] A modular support for a cylindrical battery is disclosed. The modular support includes a support unit, a fixing platform 8 on one side of the support unit, and a nested nut 9 on the other side of the fixing platform 8. The fixing platform 8 is directly integrated into the side of the support unit, and the nested nut 9 can be used to fix either the positive or negative electrode tab.

[0035] A splicing bracket module for cylindrical batteries is disclosed. The bracket module includes multiple bracket units, or multiple bracket units and bracket single units. The bracket units and bracket single units can be used as independent splicing units, or a bracket module composed of multiple bracket units can be used as an independent splicing unit. Similarly, a bracket module composed of multiple bracket units and bracket single units can be used as an independent splicing unit to improve splicing efficiency. The specific choice can be made according to actual needs.

[0036] In some embodiments, when the support module includes multiple support units and support units, there is at least one support unit and at least one support unit. When there are multiple support units, the support units are arranged in a single row or multiple rows. When arranged in multiple rows, adjacent rows are staggered. Figure 3 As shown, this is a support module consisting of one support unit and one support piece. Figure 5-6 As shown, the support module consists of three support units and one support unit, and nested nuts 9 are provided on both sides of the support unit fixing platform 8. Figure 11 As shown, this is a support module consisting of two support units and four support modules.

[0037] In some embodiments, the support unit is located at the end of the support unit row to facilitate fixing the total positive or total negative electrode tab.

[0038] In some embodiments, when the support units are arranged in multiple rows, the support unit is located at the end of the row of the recessed row, and the end of the support unit fixing platform 8 is flush with the protruding end of the row of the protruding row. For example... Figure 5-6 As shown, the space created by the staggered edges is fully utilized to improve space utilization.

[0039] In some embodiments, the support module is a one-piece molded structure. When the support module is used as a splicing unit, the support module can be integrally molded, and different support modules can be spliced ​​together to form a whole support, improving splicing efficiency, such as... Figure 12 As shown.

[0040] It should be noted that this disclosure does not limit the specific shape of the fixing platform 8 or the side position of the nested nut 9. Specifically, the nested nut 9 is provided on at least one side of the fixing platform 8. The specific side where the nested nut 9 is located can be selected according to the assembly of the cylindrical battery cells, further improving the usability and space utilization of the bracket. Figure 3 As shown, a nested nut 9 is provided on one side of the fixed platform 8, such as... Figure 7-10 As shown, when the bracket unit and multiple bracket units are integrally formed into a bracket module, the fixing platform 8 can be integrated with its adjacent bracket unit, and the position of the nested nut 9 can be selected as needed during assembly.

[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, those skilled in the art can combine and integrate different embodiments or examples and features of different embodiments or examples described in this specification without contradiction. Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting this utility model. Variations, modifications, substitutions, and modifications made to the above embodiments by those skilled in the art are all within the protection scope of this utility model.

Claims

1. A splicing support unit of a cylindrical battery, characterized by: The radial section of the support unit is hexagonal, the support unit is provided with a mounting hole for mounting a cylindrical battery or an electric core, the top of the support unit is further provided with a pole through hole and a welding hole in communication with the mounting hole, the welding hole is located on the circumferential side of the pole through hole, a notch groove is formed on the inner side wall of the support unit on the side of the welding hole, and the side surface of the support unit is provided with a plug-in protrusion and / or a plug-in groove.

2. The spliced holder unit of the cylindrical battery according to claim 1, characterized by: The pole through hole is provided with an annular stopper in the circumferential direction.

3. The spliced holder unit of the cylindrical battery according to claim 2, characterized by: The support unit is further provided with a support stopper, both ends of the support stopper are connected with the annular stopper and the support unit respectively, and the support stopper is provided with a positioning pin. 4.The spliced support unit of the cylindrical battery according to claim 1, wherein: The support unit is further provided with a temperature detection port, the temperature detection port is arranged close to the welding hole and is isolated from the welding hole by the stopper.

5. A splicing support unit of a cylindrical battery, characterized by: The support unit comprises the support unit of any one of claims 1-4, the side surface of the support unit is provided with a fixing table, and the side surface of the fixing table is provided with a nested nut.

6. A splicing support module for a cylindrical battery, characterized by: The support module comprises a plurality of support units of any one of claims 1-4 or a plurality of support units of any one of claims 1-4 and the support unit of claim 5.

7. The tiled support module of cylindrical batteries of claim 6, characterized in that: When the support module comprises a plurality of support units and support units, the support unit is at least one, the support unit is at least one, when the support unit is a plurality, the support unit is arranged in a single row or a plurality of rows, when arranged in a plurality of rows, the adjacent two rows are arranged in staggered arrangement.

8. The tiled support module of cylindrical batteries of claim 7, characterized in that: The support unit is located at the end of the row of the support unit.

9. The tiled support module of cylindrical batteries of claim 8, characterized in that: When the support unit is arranged in a plurality of rows, the support unit is located at the end of the row of the end-retracted row, and the end of the fixing table of the support unit is flush with the protruding end of the end-protruding row.

10. The tiled support module of cylindrical batteries of claim 6, wherein: The support module is an integral molding structure.

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