A battery pack capable of being assembled and spliced

Abstract

The utility model relates to battery pack technical field discloses a kind of battery pack capable of assembling splicing, including several stacked battery bodies, the bottom of the lowermost battery body is provided with matching chassis, the top of the uppermost battery body is provided with matching roof rack, four corners of the battery body are all fixedly connected with corner piece, vertical every two adjacent corner piece between is provided with a group of splicing components, every group of splicing components includes connecting column and two threaded shafts, the top and bottom of connecting column are all rotatably installed with swivel, and one end of threaded shaft is welded with swivel.The utility model has the function of assembling splicing, and the splicing position involves four corners of battery body, increases the stability after splicing, is more stable compared to point-shaped splicing position, and the installation of chassis and roof rack is facilitated, provides top sealing and bottom sealing for battery pack after assembling splicing, further guarantee the stability after splicing.

Description

Technical Field

[0001] This utility model relates to the field of battery pack technology, specifically to a battery pack that can be assembled and spliced. Background Technology

[0002] A battery pack is a power supply device composed of multiple individual cells connected in series, parallel, or series-parallel. It is mainly used to provide higher voltage or greater current.

[0003] The published patent document CN222940107U discloses a lithium-ion battery pack that can be assembled and spliced. In this published patent document, when the battery bodies are stacked one on top of the other, pulling the handle outwards and engaging the connector will cause the locking head on the sliding sleeve to disengage from the splicing hole, allowing the splicing joint on the lower battery body to be inserted into the splicing hole on the upper battery body. The splicing joint is then secured to the guide groove through the splicing groove. Releasing the handle and using the spring return pressure to push the connector to move the sliding sleeve along the guide frame will clamp the splicing joint, thereby fixing the stacked battery bodies. However, the splicing joint at the top of the battery body in the aforementioned published patent document is a point splicing, which makes it easy for the splicing joint to detach when the entire assembled battery pack is lifted, resulting in poor stability after splicing. Utility Model Content

[0004] The purpose of this invention is to provide a battery pack that can be assembled and spliced, thus solving the problems mentioned in the background art.

[0005] This application provides a battery pack capable of being assembled and spliced, comprising several stacked battery bodies. The bottom of the lowest battery body is provided with a matching base frame, and the top of the highest battery body is provided with a matching top frame. Corner pieces are fixedly connected to the four corners of each battery body. A set of splicing components is provided between every two adjacent corner pieces vertically. Each set of splicing components includes a connecting post and two threaded shafts. A rotating ring is rotatably mounted on the top and bottom of the connecting post. One end of the threaded shaft is welded to the rotating ring, and a number of first grooves are equidistantly formed on the outer wall of the rotating ring. Threaded holes matching the threaded shafts are formed on the corner pieces, and the thread helix angle of the threaded shaft is less than the equivalent friction angle.

[0006] Optionally, each of the four corners of the base frame has a circular hole 1, and an internal hexagon bolt 1 that matches the threaded hole passes through and is rotatably connected to the inside of the circular hole 1. Each of the four corners of the top frame has a circular hole 2, and an internal hexagon bolt 2 that matches the threaded hole passes through and is rotatably connected to the inside of the circular hole 2.

[0007] Optionally, positioning grooves are provided at the four corners of the top of the battery body, and positioning shafts are fixedly connected at the four corners of the bottom of the battery body, with the positioning shafts being adapted to the positioning grooves.

[0008] Optionally, the base frame is provided with four positioning holes, which are adapted to the positioning shaft.

[0009] Optionally, a second groove is provided on both sides of the top of the battery body. A positive terminal is fixedly installed inside one of the second grooves, and a negative terminal is fixedly installed inside the other second groove.

[0010] Optionally, the top of the top frame is fixedly connected to two connecting ears, and a handle is rotatably installed between the two connecting ears.

[0011] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0012] 1. The technical solution of this application enables the battery pack to be assembled and spliced ​​by a splicing assembly consisting of corner pieces, threaded holes, connecting posts, threaded shafts, swivels, and a first groove. The splicing positions involve the four corners of the battery body, which increases the stability after splicing and is more stable than point splicing positions.

[0013] 2. The technical solution of this application facilitates the installation of the base frame and the top frame by using the cooperation between the corner fittings, threaded holes, round hole one, internal hex bolt one, round hole two and internal hex bolt two, providing a top and bottom seal for the assembled battery pack, and further ensuring the stability after splicing. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the structure of the present invention from the front view.

[0016] Figure 2 This is a schematic diagram of the main structure of the battery body of this utility model;

[0017] Figure 3 This is a schematic diagram of the main structure of a set of splicing components of this utility model;

[0018] Figure 4 This is a structural schematic diagram of the base frame of this utility model viewed from below;

[0019] Figure 5 This is a schematic diagram of the top frame structure of this utility model.

[0020] In the diagram: 1. Battery body; 2. Base frame; 3. Top frame; 4. Corner piece; 5. Splicing assembly; 51. Connecting post; 52. Threaded shaft; 53. Rotary ring; 54. First groove; 6. Handle; 7. Threaded hole; 8. Positioning groove; 9. Positioning shaft; 10. Second groove; 11. Positive terminal; 12. Negative terminal; 13. Round hole one; 14. Hex socket head cap screw one; 15. Positioning hole; 16. Round hole two; 17. Hex socket head cap screw two; 18. Connecting lug. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] Please see Figure 1-3 This utility model provides a battery pack that can be assembled and spliced, including several stacked battery bodies 1. The bottom of the lowest battery body 1 is provided with a matching base frame 2, and the top of the highest battery body 1 is provided with a matching top frame 3. Corner pieces 4 are fixedly connected to the four corners of the battery body 1. A set of splicing components 5 is provided between every two adjacent corner pieces 4 vertically. Each set of splicing components 5 includes a connecting post 51 and two threaded shafts 52. A rotating ring 53 is rotatably installed on the top and bottom of the connecting post 51. One end of the threaded shaft 52 is welded to the rotating ring 53, and several first grooves 54 are equidistantly opened on the outer wall of the rotating ring 53. The corner piece 4 is provided with a threaded hole 7 that matches the threaded shaft 52. The thread helix angle of the threaded shaft 52 is less than the equivalent friction angle.

[0023] In this technical solution, by placing one battery body 1 on top of another battery body 1, and then placing four sets of splicing components 5 between the two battery bodies 1, the rotating ring 53 is rotated through the first groove 54, so that one end of the threaded shaft 52 is screwed into the threaded hole 7 of the corresponding corner piece 4, thus realizing the installation between the two battery bodies 1. This enables the battery pack to have the function of assembly and splicing, and the splicing position involves the four corners of the battery body 1, increasing the stability after splicing. Compared with the point splicing position, it is more stable.

[0024] In some technical solutions, such as Figure 1-2 and Figure 4-5 As shown, each of the four corners of the base frame 2 has a circular hole 13, through which a hexagon socket head cap screw 14 matching the threaded hole 7 is rotatably connected. Each of the four corners of the top frame 3 has a circular hole 26, through which a hexagon socket head cap screw 27 matching the threaded hole 7 is rotatably connected.

[0025] In use, the base frame 2 is placed below the bottom battery body 1, and the upper end of the hex bolt 14 is rotated into the threaded hole 7 of the corresponding corner piece 4 until the base frame 2 contacts the battery body 1, thus completing the installation of the base frame 2. The top frame 3 is placed above the top battery body 1, and the lower end of the hex bolt 17 is rotated into the threaded hole 7 of the corresponding corner piece 4 until the top frame 3 contacts the battery body 1, thus completing the installation of the top frame 3. The base frame 2 and the top frame 3 provide a top and bottom seal for the assembled battery pack, further ensuring the stability of the assembled battery pack.

[0026] In some technical solutions, such as Figure 2 As shown, positioning grooves 8 are provided at the four corners of the top of the battery body 1, and positioning shafts 9 are fixedly connected at the four corners of the bottom of the battery body 1. The positioning shafts 9 are adapted to the positioning grooves 8.

[0027] During use, the positioning shaft 9 and the positioning groove 8 limit the accuracy of stacking the battery body 1.

[0028] In some technical solutions, such as Figure 2 and Figure 4 As shown, the base frame 2 has four positioning holes 15, which are adapted to the positioning shaft 9.

[0029] During use, the positioning hole 15 and the positioning shaft 9 ensure the accurate installation of the base frame 2.

[0030] In some technical solutions, such as Figure 2 As shown, a second groove 10 is provided on both sides of the top of the battery body 1. A positive terminal 11 is fixedly installed inside one second groove 10, and a negative terminal 12 is fixedly installed inside the other second groove 10.

[0031] In use, by placing the positive terminal 11 and the negative terminal 12 in the second groove 10, the connection of the wires will not be affected after the battery pack is assembled and spliced.

[0032] In some technical solutions, such as Figure 1 and Figure 5 As shown, the top of the top frame 3 is fixedly connected to two connecting ears 18, and a handle 6 is rotatably installed between the two connecting ears 18.

[0033] When in use, the entire assembled battery pack can be easily lifted using handle 6.

[0034] Working principle: Place one battery body 1 on top of another battery body 1, then place four sets of splicing components 5 between the two battery bodies 1. Rotate the rotating ring 53 through the first groove 54 to screw one end of the threaded shaft 52 into the threaded hole 7 of the corresponding corner piece 4, thus realizing the installation between the two battery bodies 1 and enabling the battery pack to be assembled and spliced. Place the base frame 2 below the bottom battery body 1, and rotate the hex socket head cap screw 14 so that its upper end enters the threaded hole 7 of the corresponding corner piece 4 until the base frame 2 contacts the battery body 1, thus completing the installation of the base frame 2. Then place the top frame 3 above the top battery body 1, and rotate the hex socket head cap screw 17 so that its lower end enters the threaded hole 7 of the corresponding corner piece 4 until the top frame 3 contacts the battery body 1, thus completing the installation of the top frame 3. The base frame 2 and the top frame 3 provide a top and bottom seal for the assembled and spliced ​​battery pack.

[0035] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Although this application 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 this application should be included within the protection scope of this application.

Claims

1. A battery pack capable of being assembled and spliced, comprising a plurality of stacked battery bodies (1), characterized in that: The bottom of the battery body (1) at the bottom is provided with a matching base frame (2), and the top of the battery body (1) at the top is provided with a matching top frame (3). Corner pieces (4) are fixedly connected to the four corners of the battery body (1). A set of splicing components (5) is provided between every two adjacent corner pieces (4) in the vertical direction. Each set of splicing components (5) includes a connecting post (51) and two threaded shafts (52). A rotating ring (53) is rotatably installed on the top and bottom of the connecting post (51). One end of the threaded shaft (52) is welded to the rotating ring (53), and several first grooves (54) are equidistantly opened on the outer wall of the rotating ring (53). A threaded hole (7) matching the threaded shaft (52) is opened on the corner piece (4). The thread helix angle of the threaded shaft (52) is less than the equivalent friction angle.

2. A battery pack capable of being assembled and spliced ​​according to claim 1, characterized in that, The base frame (2) has a circular hole (13) at each of its four corners. A hexagonal socket head cap screw (14) matching the threaded hole (7) passes through and is rotatably connected to the inside of the circular hole (13). The top frame (3) has a circular hole (16) at each of its four corners. A hexagonal socket head cap screw (17) matching the threaded hole (7) passes through and is rotatably connected to the inside of the circular hole (16).

3. A battery pack capable of being assembled and spliced ​​according to claim 1, characterized in that, The battery body (1) has positioning grooves (8) at the four corners of the top, and positioning shafts (9) are fixedly connected at the four corners of the bottom. The positioning shafts (9) are adapted to the positioning grooves (8).

4. A battery pack capable of being assembled and spliced ​​according to claim 2, characterized in that, The base frame (2) has four positioning holes (15), which are adapted to the positioning shaft (9).

5. A battery pack capable of being assembled and spliced ​​according to claim 1, characterized in that, The battery body (1) has a second groove (10) on both sides of the top. A positive terminal (11) is fixedly installed inside one of the second grooves (10), and a negative terminal (12) is fixedly installed inside the other second groove (10).

6. A battery pack capable of being assembled and spliced ​​according to claim 2, characterized in that, The top of the top frame (3) is fixedly connected to two connecting ears (18), and a handle (6) is rotatably installed between the two connecting ears (18).

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