Connecting assembly for lithium battery

Abstract

The connecting assembly comprises a protective shell, four mounting pipes are connected to the bottom end of the interior of the protective shell in a penetrating mode, four adjusting covers are fixedly connected to the positions, located at the four mounting pipes, of the bottom end of the protective shell, and four adjusting rings are rotationally connected to the interiors of the four adjusting covers; and mounting grooves are formed in the top ends of the four adjusting rings. The fixing cover is pressed downwards, so that the fixing cover is separated from the fixing groove, then the fixing cover is rotated, so that the fixing cover rotates along with the adjusting ring, the mounting groove is aligned with the mounting through hole, and the battery pops out of the adjusting cover along with the fixing cover under the action of force applied by the pressing spring; the damaged battery can still be replaced after the batteries are connected through the connecting assembly, the structure is simple, disassembly is convenient, the replacement efficiency of a single battery in the battery pack is improved, and the service life of the battery pack is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a connection component for lithium batteries. Background Technique

[0002] A lithium battery is a battery with lithium metal or lithium alloy as the positive / negative electrode material and a non-aqueous electrolyte solution. It is a product widely used in daily life. Lithium batteries can be divided into two categories: lithium metal batteries and lithium-ion batteries. Among them, lithium-ion batteries do not contain metallic lithium and can be charged. In order to better improve the power or voltage of lithium batteries, multiple lithium batteries are usually connected together through a connection component to form a battery pack for use.

[0003] Currently, most battery packs are directly bundled together with tools such as adhesive tapes and then connected through a connection component for use. Among them, the connection component is fixedly connected to the storage battery. During the long-term use of the battery pack, if one of the lithium batteries fails, the entire battery pack will be unable to be used, and the maintenance is rather cumbersome, which is not convenient for replacing the damaged battery and reduces the maintenance efficiency of the battery pack. Content of the Utility Model

[0004] The purpose of the utility model is to provide a connection component for lithium batteries to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A connection component for lithium batteries, including a protective shell. Four installation pipes are connected through the bottom end inside the protective shell. Four adjustment covers are fixedly connected to the bottom end of the protective shell at the positions of the four installation pipes. Four adjustment rings are rotatably connected inside the four adjustment covers. Installation grooves are opened at the top ends of the four adjustment rings. Fixing covers are inserted into the four installation grooves. Installation through holes are respectively opened through the top ends of the four adjustment covers. The four fixing covers respectively pass through the four installation through holes and are inserted into the four installation grooves. Two fixing grooves are respectively opened on the inner top surfaces of the four adjustment covers.

[0006] As a further preference of the above technical solution, ventilation through holes are opened on the outer surfaces of the four installation pipes. A heat dissipation groove is opened on one side of the protective shell, and a plurality of heat dissipation fins are fixedly connected inside the heat dissipation groove.

[0007] As a further preference of the above technical solution, support columns are fixedly connected to the bottom end of the protective shell at the four corner positions, and a protection plate is fixedly connected to the top ends of the four support columns.

[0008] As a further preference of the technical solution, a fixed frame is fixedly connected to one side wall inside the protective housing, a drying sheet is inserted into the fixed frame, and the outer surface of the drying sheet is in interference fit with the inside of the fixed frame.

[0009] As a further preference of the technical solution, a pressing spring is fixedly connected to the inner top surface of the protective housing and at the positions inside the four mounting pipes, and three second conductive sheets are fixedly connected to the top end of the protective housing. One end of two of the second conductive sheets and both ends of the other second conductive sheet are electrically connected to one end of the four pressing springs respectively.

[0010] As a further preference of the technical solution, a first conductive sheet is fixedly connected to the top end of each of the four fixing covers, and a conductive column penetrates through the top end of each of the four adjusting covers and at the positions of the eight fixing grooves.

[0011] The utility model provides a connection component for a lithium battery, which has the following beneficial effects:

[0012] (1) By pressing down the fixing cover in the utility model, the fixing cover is detached from the fixing groove, and then the fixing cover is rotated so that the fixing cover rotates along with the adjusting ring, aligning the mounting groove and the mounting through hole. Under the action of the force applied by the pressing spring, the battery pops out of the adjusting cover along with the fixing cover, realizing that the connection component can still replace the damaged battery after connecting the battery. The structure is simple, the disassembly is convenient, the replacement efficiency of a single battery in the battery pack is improved, and the service life of the battery pack is prolonged.

[0013] (2) Through the cooperation of the air-permeable through holes and the heat dissipation fins in the utility model, the heat generated by the battery during use can be quickly dissipated to the outside, effectively ensuring the normal operation of the battery and improving the service life of the battery. Description of the Drawings

[0014] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 is an exploded schematic diagram of the internal structure of the adjusting cover after the whole utility model is turned over;

[0016] Figure 3 is a schematic diagram of the internal structure of the adjusting cover of the utility model;

[0017] Figure 4 is an exploded schematic diagram of the overall structure of the utility model.

[0018] In the figure: 1. Protective shell; 2. Installation pipe; 3. Adjusting cover; 4. Adjusting ring; 5. Fixed cover; 6. First conductive sheet; 7. Installation through-hole; 8. Installation groove; 9. Fixed groove; 10. Conductive column; 11. Support column; 12. Protection plate; 13. Ventilation through-hole; 14. Heat dissipation groove; 15. Heat sink; 16. Pressing spring; 17. Fixed frame; 18. Desiccant; 19. Second conductive sheet. Specific implementation manner

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] The present invention provides a technical solution: As Figures 1-4 shown, in this embodiment, a connection component for a lithium battery includes a protective shell 1. Four installation pipes 2 are connected through the bottom end inside the protective shell 1. Four adjusting covers 3 are fixedly connected to the bottom end of the protective shell 1 and located at the positions of the four installation pipes 2. Four adjusting rings 4 are rotatably connected inside the four adjusting covers 3. Installation grooves 8 are opened at the top ends of the four adjusting rings 4. Fixed covers 5 are inserted into the four installation grooves 8. Installation through-holes 7 are respectively penetrated and opened at the top ends of the four adjusting covers 3. The four fixed covers 5 respectively pass through the four installation through-holes 7 and are respectively inserted into the four installation grooves 8. Two fixed grooves 9 are respectively opened on the inner top surfaces of the four adjusting covers 3. Among them, by setting the installation groove 8, the fixed cover 5 can be rotated with the adjusting ring 4 and enter the adjusting cover 3. By setting the installation pipe 2, it is used to fix the battery so that multiple batteries can be connected by the connection component on the protective shell 1. By setting the installation through-hole 7, it is convenient for the fixed cover 5 to enter the adjusting cover 3. By setting the fixed groove 9, the fixed cover 5 can be fixed to prevent it from sliding.

[0021] As Figure 4 shown, ventilation through-holes 13 are penetrated and opened on the outer surfaces of the four installation pipes 2. A heat dissipation groove 14 is opened on one side of the protective shell 1. A plurality of heat sinks 15 are fixedly connected inside the heat dissipation groove 14. By setting the ventilation through-hole 13, it is convenient for the heat of the battery to be better dissipated. By setting the heat sink 15, the heat inside the protective shell 1 can be better dissipated, improving the heat dissipation effect.

[0022] As Figure 1 and Figure 2 shown, support columns 11 are fixedly connected to the bottom end of the protective shell 1 and located at the four corner positions. A protection plate 12 is fixedly connected to the top ends of the four support columns 11. By setting the protection plate 12, the adjusting cover 3 can be protected.

[0023] As Figure 4As shown, a fixing frame 17 is fixedly connected to one inner side wall of the protective housing 1. A drying sheet 18 is inserted into the fixing frame 17. The outer surface of the drying sheet 18 is in interference fit with the inside of the fixing frame 17. By providing the fixing frame 17, the drying sheet 18 can be fixed. By providing the drying sheet 18, the inside of the protective housing 1 can be kept dry, avoiding moisture inside.

[0024] As Figure 1 and Figure 4 shown, a pressing spring 16 is fixedly connected to the inner top surface of the protective housing 1 and at the positions inside the four mounting tubes 2. Three second conductive sheets 19 are fixedly connected to the top end of the protective housing 1. One end of two of the second conductive sheets 19 and both ends of the other second conductive sheet 19 are electrically connected to one end of the four pressing springs 16 respectively. By providing the pressing spring 16, a force can be applied to the battery, making the connection between the battery and the connection component closer. At the same time, the fixing cover 5 can be inserted into the fixing groove 9. By providing the second conductive sheets 19, the batteries can be connected to each other, which belongs to the connection component.

[0025] As Figure 2 and Figure 3 shown, a first conductive sheet 6 is fixedly connected to the top end of each of the four fixing covers 5. Conductive columns 10 penetrate and are connected to the top ends of the four adjusting covers 3 and at the positions of the eight fixing grooves 9. The first conductive sheet 6 and the conductive columns 10 are the connection component. Among them, the conductive columns 10 on the two adjusting covers 3 near both sides are electrically connected. Through cooperation with the second conductive sheets 19, a path is formed between the four batteries.

[0026] The present utility model provides a connection component for a lithium battery, and the specific working principle is as follows:

[0027] When one of the batteries in the battery pack is damaged, the staff presses down the fixing cover 5 with a plum blossom wrench, so that the fixing cover 5 is separated from the fixing groove 9. Then, the fixing cover 5 is rotated so that the fixing cover 5 rotates with the adjusting ring 4, aligning the installation groove 8 and the installation through hole 7. Under the action of the force applied by the pressing spring 16, the battery pops out of the adjusting cover following the fixing cover 5, and the battery is replaced. During the operation of the battery pack, the heat dissipated by the battery is discharged through the air permeable through holes 13 and absorbed by the heat sink 15 and then diffused to the outside, effectively maintaining the normal operation of the battery.

[0028] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A connection assembly for a lithium battery, comprising a protective housing (1), characterized in that: The bottom end of the protective shell (1) is connected to four mounting tubes (2). The bottom end of the protective shell (1) is fixedly connected to four adjusting covers (3) at the positions of the four mounting tubes (2). The four adjusting covers (3) are rotatably connected to four adjusting rings (4). The top ends of the four adjusting rings (4) are provided with mounting grooves (8). The four mounting grooves (8) are plugged with fixing covers (5). The top ends of the four adjusting covers (3) are connected to mounting through holes (7). The four fixing covers (5) pass through the four mounting through holes (7) and are plugged into the four mounting grooves (8) respectively. The top surfaces of the four adjusting covers (3) are provided with two fixing grooves (9).

2. A connection assembly for a lithium battery according to claim 1, characterized in that: The outer surfaces of the four mounting tubes (2) are penetrated with ventilation holes (13), one side of the protective shell (1) is provided with a heat dissipation groove (14), and a plurality of heat dissipation fins (15) are fixedly connected inside the heat dissipation groove (14).

3. A connection assembly for a lithium battery according to claim 2, characterized in that: Support columns (11) are fixedly connected to the bottom end of the protective shell (1) and at the four corners, and protection plates (12) are fixedly connected to the top ends of the four support columns (11).

4. A connection assembly for a lithium battery according to claim 3, characterized in that: A fixing frame (17) is fixedly connected to a side wall inside the protective shell (1), a drying sheet (18) is inserted inside the fixing frame (17), and the outer surface of the drying sheet (18) is interference-fitted with the inside of the fixing frame (17).

5. A connection assembly for a lithium battery according to claim 1, characterized in that: A pressure spring (16) is fixedly connected to the inner top surface of the protective shell (1) and located inside the four mounting tubes (2). Three No. 2 conductive sheets (19) are fixedly connected to the top of the protective shell (1), wherein one end of two of the No. 2 conductive sheets (19) and two ends of another No. 2 conductive sheet (19) are electrically connected to one end of the four pressure springs (16) respectively.

6. A connection assembly for a lithium battery according to claim 1, characterized in that: The top ends of the four fixed covers (5) are all fixedly connected to a No. 1 conductive sheet (6), and the top ends of the four adjustment covers (3) and the locations of the eight fixed slots (9) are all penetrated and connected to a conductive column (10).

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