Novel capacitive pin battery cell pack structure

Abstract

The utility model relates to the technical field of pin cells, and discloses a novel capacitive pin cell pack structure which comprises a shell, a top plate is in contact with the top end of the shell, and a sealing mechanism is arranged on the inner wall of the top plate; the sealing mechanism comprises a moving frame, a positioning plate is fixedly connected to the outer wall of the shell, a fixing plate is fixedly connected to the outer wall of the top plate, bolts are in threaded connection with the inner wall of the fixing plate, a positioning assembly is arranged at the bottom end of the top plate, and connecting columns are rotationally connected to the inner walls of the top ends of the front and rear groups of bolts. A sealing groove is formed in the top end of the shell. A connecting mechanism is arranged on the inner wall of the shell. According to the utility model, when the whole shell is disassembled, the bolts are unlimited by screwing, the sealing ring is taken out and the whole shell is disassembled, and after the sealing gasket is aged after being used for a long time, the front and rear groups of bolts can be screwed to drive the moving frame to move downwards so as to continuously extrude the sealing gasket, so that the sealing performance is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of pin-type battery cell technology, and in particular to a novel capacitor-type pin-type battery cell pack structure. Background Technology

[0002] Pin-type battery cells, as an important capacitor cell technology, are widely used in various energy storage and power applications. Pin-type cells typically refer to a cell design that connects to individual battery cells via pins, and are commonly used as a connection method, especially in some small electronic devices or battery packs. Their design advantages are mainly reflected in high power density, fast charge and discharge capabilities, and long cycle life, making them particularly suitable for scenarios with high requirements for rapid response and high efficiency.

[0003] In the production of pin-type battery cells, a packaging process is required. During packaging, the corresponding base plate, battery, and cover plate are first installed inside the casing. Then, the top plate is installed on the casing, and a sealant is used to achieve a sealing effect. After the sealant cures, it forms a strong bond. Once a fault occurs inside the battery cell, such as damage to individual cells or abnormal circuit connections, requiring repair or replacement of parts, separating the top plate from the casing is extremely difficult. It requires forcibly disassembling the casing, such as using a cutting machine to cut and disassemble it. However, forced disassembly can easily deform the top plate and casing, and may also damage internal precision components such as battery cells and circuit boards, leading to the scrapping of other components and significantly increasing repair costs and the risk of product scrapping. To address these issues, a novel capacitor-type pin-type battery cell pack structure is proposed. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a novel capacitor-type pin-type battery pack structure, which aims to improve the problem in the prior art where the internal battery cells are easily damaged due to forced disassembly when maintenance is required.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a novel capacitor-type pin cell pack structure, including a shell, a top plate being in contact with the top of the shell, and a sealing mechanism being provided on the inner wall of the top plate;

[0006] The sealing mechanism includes a movable frame, a positioning plate fixedly connected to the outer wall of the outer shell, a fixing plate fixedly connected to the outer wall of the top plate, bolts threadedly connected to the inner wall of the fixing plate, a positioning assembly provided at the bottom end of the top plate, and multiple sets of bolts, fixing plates and positioning plates are provided, with the multiple sets of bolts, fixing plates and positioning plates respectively located at the four end points of the top plate. Connecting columns are rotatably connected to the inner walls of the top ends of the front and rear sets of bolts, a sealing groove is opened at the top end of the outer shell, and a connecting mechanism is provided on the inner wall of the outer shell.

[0007] As a further description of the above technical solution:

[0008] The positioning component includes a positioning post, a positioning groove is formed on the inner wall of the top of the housing, the bottom end of the positioning post contacts the inner wall of the positioning groove, and the top end of the positioning post is fixedly connected to the bottom end of the top plate.

[0009] As a further description of the above technical solution:

[0010] The bottom end of the bolt is threaded to the inner wall of the positioning plate, and the outer wall of the movable frame is slidably connected to the inner wall of the top plate.

[0011] As a further description of the above technical solution:

[0012] The bottom end of the connecting column, away from the fixed plate, is fixedly connected to the top of the movable frame.

[0013] As a further description of the above technical solution:

[0014] The bottom end of the movable frame matches the inner wall of the sealing groove.

[0015] As a further description of the above technical solution:

[0016] The connecting mechanism includes a lower cover plate, a battery cell assembly is fixedly connected to the top of the lower cover plate, an upper cover plate is fixedly connected to the top of the battery cell assembly, a welding PCB board is fixedly connected to the top of the upper cover plate, and an epoxy board is fixedly connected to the top of the welding PCB board.

[0017] As a further description of the above technical solution:

[0018] The bottom end of the lower cover plate is fixedly connected to the inner wall of the bottom end of the outer shell.

[0019] As a further description of the above technical solution:

[0020] A recessed layer is formed on the top of the upper cover plate.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, through the mutual cooperation between the outer shell, top plate and sealing mechanism and other structures, when it is necessary to disassemble the entire outer shell, the bolts are first turned to release the bolt limit, so that the sealing ring can be taken out and the whole assembly can be disassembled. When the sealing gasket ages after long-term use, the front and rear bolts can be turned to drive the moving frame to move downward and continue to squeeze the sealing gasket, thereby enhancing the sealing performance.

[0023] 2. In this utility model, the overall structure is optimized by the cooperation between the connecting mechanism and other structures, the design of the upper and lower cover plates and their connectors, and the safety is enhanced. The protrusion design saves space and increases space utilization. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a novel capacitive pin-type battery pack structure proposed in this utility model.

[0025] Figure 2 This is a schematic diagram showing the top plate and outer casing of a novel capacitive pin-type battery pack structure proposed in this utility model.

[0026] Figure 3 This is an enlarged structural diagram of point A of a novel capacitive pin-type battery pack structure proposed in this utility model;

[0027] Figure 4 This is an enlarged structural diagram of point B of a novel capacitive pin-type battery pack structure proposed in this utility model.

[0028] Figure 5 This is a schematic diagram showing the disassembled connection mechanism of a novel capacitor-type pin-type battery pack structure proposed in this utility model.

[0029] Legend:

[0030] 1. Outer shell; 2. Top plate; 3. Sealing mechanism; 301. Moving frame; 302. Positioning plate; 303. Fixing plate; 304. Bolt; 305. Connecting column; 306. Positioning column; 307. Positioning groove; 308. Sealing groove; 4. Connecting mechanism; 401. Epoxy board; 402. Welded PCB board; 403. Top cover plate; 404. Battery cell assembly; 405. Bottom cover plate. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1-3The present invention provides an embodiment of a novel capacitor-type pin-type battery pack structure, including a housing 1, with a top plate 2 in contact with the top of the housing 1. The housing 1 and the top plate 2 are configured to complete the overall installation of the battery pack. A sealing mechanism 3 is provided on the inner wall of the top plate 2. The sealing mechanism 3 avoids the use of sealant for sealing, thereby facilitating replacement.

[0033] Reference Figures 2-4 The sealing mechanism 3 includes a movable frame 301, which can move vertically. A positioning plate 302 is fixedly connected to the outer wall of the outer shell 1, and a fixing plate 303 is fixedly connected to the outer wall of the top plate 2. The fixing plate 303 and the positioning plate 302 serve to connect and fix the components. Bolts 304 are threaded onto the inner wall of the fixing plate 303, ensuring a more stable installation between the outer shell 1 and the top plate 2. A positioning component is provided at the bottom of the top plate 2, facilitating the connection of the sealing gasket. Multiple sets of bolts 304, fixing plates 303, and positioning plates 302 are provided. The bolts 304, fixing plate 303 and positioning plate 302 are located at the four ends of the top plate 2. The multiple sets can make the top plate 2 more evenly stressed after installation. The inner walls of the top of the front and rear bolts 304 are rotatably connected to the connecting column 305. The connecting column 305 is moved vertically by the bolts 304. The top of the outer shell 1 is opened with a sealing groove 308, which is used to place the corresponding sealing gasket. The inner wall of the outer shell 1 is provided with a connecting mechanism 4. The connection mechanism 4 facilitates the connection between pin-type cells and traditional PACK structures, making it more compatible and reducing costs.

[0034] Reference Figures 2-4 The positioning component includes a positioning post 306. A positioning groove 307 is formed on the inner wall of the top of the outer shell 1. The bottom end of the positioning post 306 contacts the inner wall of the positioning groove 307, and the two contact each other to achieve the purpose of pre-positioning. The top end of the positioning post 306 is fixedly connected to the bottom end of the top plate 2, and the two are fixed to provide fixed support for the positioning post 306. The bottom end of the bolt 304 is threadedly connected to the inner wall of the positioning plate 302, and the threaded connection is set to achieve the purpose of stable connection. The outer wall of the moving frame 301 is slidably connected to the inner wall of the top plate 2, and the moving frame 301 can move vertically. The bottom end of the connecting post 305 on the side away from the fixed plate 303 is fixedly connected to the top end of the moving frame 301. The movement of the connecting post 305 drives the moving frame 301 to move vertically as a whole. The bottom end of the moving frame 301 matches the inner wall of the sealing groove 308. The movement of the moving frame 301 can further compress the sealing gasket, thereby improving the sealing performance.

[0035] Reference Figures 2-4The connecting mechanism 4 includes a lower cover plate 405, with a battery cell assembly 404 fixedly connected to the top of the lower cover plate 405. An upper cover plate 403 is fixedly connected to the top of the battery cell assembly 404. Both the upper cover plate 403 and the lower cover plate 405 are manufactured using bakelite milling technology, exhibiting good pressure resistance, high temperature resistance, and corrosion resistance, effectively protecting the battery cells and circuit components from external environmental influences. A soldering PCB board 402 is fixedly connected to the top of the upper cover plate 403. The soldering PCB board 402 uses a copper-clad process, ensuring high conductivity, good heat dissipation, and flexible layout of the circuit, enabling it to demonstrate excellent adaptability in various application scenarios. The top of 02 is fixedly connected to an epoxy board 401. The soldering PCB board 402 is designed with a raised fixed sampling connector. Compared with traditional planar connectors, the raised connector not only saves space, but also provides a more stable and efficient electrical connection within the limited space of the soldering PCB board 402. The bottom of the lower cover plate 405 is fixedly connected to the bottom inner wall of the outer shell 1. The top of the upper cover plate 403 has a recessed layer. The upper cover plate 403 adopts a recessed layer design. Through a reasonable recessed layer structure, it can effectively avoid contact between the cell isolation plate and the soldering point, thereby reducing the risk of the soldering point puncturing the isolation plate and improving the safety of the cell and the stability of the structure.

[0036] Working Principle: The lower cover plate 405 is fixed to the inner wall of the bottom of the outer casing 1, providing support for the battery cell assembly 404. The battery cell assembly 404 is placed on the lower cover plate 405, and its top end is connected to the upper cover plate 403. The upper cover plate 403 and the lower cover plate 405 are made using bakelite milling technology to protect the battery cells and circuit components. The soldered PCB board 402 is fixed to the top of the upper cover plate 403, and the epoxy board 401 is located on top of the soldered PCB board 402, together forming a stable circuit connection structure. The top plate 2 is placed on the top of the outer casing 1, and the bottom end of the positioning post 306 contacts the positioning groove 307 on the inner wall of the top of the outer casing 1, completing the pre-positioning of the top plate 2. The bolts 304 on the fixing plate 303 are threadedly connected to the positioning plate 302, realizing the initial fixation of the outer casing 1 and the top plate 2. Rotating the bolts 304 drives the connecting post 305 to move vertically, and the connecting post 305 drives the moving frame 301 to move vertically on the inner wall of the top plate 2. The bottom of the movable frame 301 matches the inner wall of the sealing groove 308, squeezing the sealing gasket placed in the sealing groove 308. This way, when the sealing gasket ages after long-term use, the squeezing further enhances the sealing effect and prevents external impurities from entering.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel electrically capacitive pin pack structure comprising a housing (1) characterized in that: The outer shell (1) top end contact has a top plate (2), the inner wall of the top plate (2) is provided with sealing mechanism (3); The sealing mechanism (3) includes a moving frame (301), the outer wall of the outer shell (1) is fixedly connected with a positioning plate (302), the outer wall of the top plate (2) is fixedly connected with a fixed plate (303), the inner wall of the fixed plate (303) is threadedly connected with a bolt (304), the bottom end of the top plate (2) is provided with a positioning assembly, the bolt (304), the fixed plate (303) and the positioning plate (302) are provided with a plurality of groups, a plurality of groups of the bolt (304), the fixed plate (303) and the positioning plate (302) are located at the four edge endpoints of the top plate (2), the top end inner wall of the front and rear two groups of the bolt (304) is rotatably connected with a connecting column (305), the top end of the outer shell (1) is provided with a sealing groove (308), and the inner wall of the outer shell (1) is provided with a connecting mechanism (4).

2. A novel electrically capacitive needle stitch pack structure as claimed in claim 1, wherein: The positioning assembly includes a positioning column (306), the top end inner wall of the outer shell (1) is provided with a positioning groove (307), the bottom end of the positioning column (306) contacts the inner wall of the positioning groove (307), and the top end of the positioning column (306) is fixedly connected to the bottom end of the top plate (2).

3. A novel electrically capacitive needle stitch cell pack structure as claimed in claim 1, wherein: The bottom end of the bolt (304) is threadedly connected to the inner wall of the positioning plate (302), and the outer wall of the moving frame (301) is slidably connected to the inner wall of the top plate (2).

4. A novel electrically capacitive needle stitch cell pack structure as claimed in claim 1, wherein: The bottom end of the connecting column (305) away from the fixed plate (303) is fixedly connected to the top end of the moving frame (301).

5. A novel electrically capacitive needle stitch pack structure as claimed in claim 2, wherein: The bottom end of the moving frame (301) matches the inner wall of the sealing groove (308).

6. A novel electrically capacitive needle stitch pack structure as claimed in claim 1, wherein: The connecting mechanism (4) includes a lower cover plate (405), the top end of the lower cover plate (405) is fixedly connected with a battery core group (404), the top end of the battery core group (404) is fixedly connected with an upper cover plate (403), the top end of the upper cover plate (403) is fixedly connected with a welded PCB board (402), and the top end of the welded PCB board (402) is fixedly connected with an epoxy plate (401).

7. A novel electrically capacitive needle stitch pack structure as claimed in claim 6, wherein: The bottom end of the lower cover plate (405) is fixedly connected to the bottom end inner wall of the outer shell (1).

8. A novel electrically capacitive needle stitch pack structure as claimed in claim 6, wherein: The top of the upper cover plate (403) is provided with a concave layer.

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