Conductive assembly of lithium iron phosphate battery

Abstract

The utility model relates to the technical field of lithium iron phosphate batteries, in particular to a conductive assembly of a lithium iron phosphate battery, which comprises a plurality of battery bodies arranged side by side and a conductive assembly, the top of each battery body is provided with a positive electrode and a negative electrode, and the positive electrodes and the negative electrodes of two adjacent battery bodies are electrically connected through the conductive assembly. The conductive assembly comprises a conductive sheet, a positioning plate is fixedly arranged at the upper end of the conductive sheet, rectangular holes are formed in the positions, located on the two sides of the positive electrode and the negative electrode, of the positioning plate, a fixing plate is slidably arranged in the rectangular holes, the lower end of the fixing plate is fixedly connected with the battery body, a cavity is formed in the positioning plate, and a locking mechanism is arranged in the cavity and comprises a locking block. A sliding groove is formed in the hole wall of the side, close to the cavity, of the rectangular hole, and a through hole is formed between the sliding groove and the cavity. According to the utility model, the conductive assembly can be quickly disassembled and assembled, the installation efficiency of the conductive assembly is improved, and the damaged conductive assembly can be conveniently replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium iron phosphate batteries, in particular to a conductive component of a lithium iron phosphate battery. Background Art

[0002] Lithium iron phosphate batteries are lithium-ion batteries that use lithium iron phosphate (LiFePO4) as the positive electrode material and carbon as the negative electrode material. The rated voltage of each cell is 3.2V, and the charge cut-off voltage is 3.6V to 3.65V. During charging, some lithium ions in the lithium iron phosphate are released, transferred through the electrolyte to the negative electrode, and embedded in the negative electrode's carbon material. Simultaneously, electrons are released from the positive electrode and travel through the external circuit to the negative electrode, maintaining the chemical reaction balance. During discharge, lithium ions are released from the negative electrode and travel through the electrolyte to the positive electrode. Simultaneously, electrons are released from the negative electrode and travel through the external circuit to the positive electrode, providing energy to the outside world.

[0003] In the existing technology, a lithium iron phosphate battery pack usually contains multiple single cells. Two adjacent single cells need to be welded to the battery electrodes through a conductive component. The welding time is long, resulting in low assembly efficiency of the battery pack and inconvenience in replacing damaged conductive components. Therefore, we have introduced a lithium iron phosphate battery conductive component. Utility Model Content

[0004] The purpose of the present invention is to provide a lithium iron phosphate battery conductive component, which is convenient for quick disassembly and assembly of the conductive component, improves the installation efficiency of the conductive component, and facilitates the replacement of damaged conductive components, so as to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A conductive assembly for a lithium iron phosphate battery comprises a plurality of battery bodies and conductive assemblies placed side by side, wherein a positive electrode and a negative electrode are provided on the top of each battery body, and the positive electrode and the negative electrode of two adjacent battery bodies are electrically connected via the conductive assembly, wherein the conductive assembly comprises a conductive sheet, a positioning plate is fixedly provided on the upper end of the conductive sheet, and rectangular holes are provided on both sides of the positioning plate located at the positive electrode and the negative electrode, a fixing plate is slidably provided in the rectangular hole, and the lower end of the fixing plate is fixedly connected to the battery body, a cavity is provided in the positioning plate, and a locking mechanism is provided in the cavity.

[0007] Furthermore, the locking mechanism includes a locking block, a sliding groove is opened on the hole wall of the rectangular hole close to the cavity, a through hole is provided between the sliding groove and the cavity, the locking block is slidably arranged in the sliding groove, one end of the locking block extends outside the sliding groove, and the side wall of the fixed plate is provided with a locking groove matching the locking block, an axial hole is provided at the center of the top of the cavity, a rotating shaft is provided for rotation in the axial hole, one end of the rotating shaft extends into the cavity and is fixed with a winding roller, a pull rope is fixed on both sides of the winding roller, one end of the pull rope passes through the through hole and is fixedly connected to the locking block, and a spring is fixed between the locking block and the through hole.

[0008] Furthermore, a rotating wheel is fixedly provided on the upper end of the rotating shaft.

[0009] Furthermore, the circumferential wall of the rotating wheel is provided with an anti-slip sleeve.

[0010] Furthermore, an inclined surface is provided on the upper side of one end of the locking block located outside the sliding groove.

[0011] Furthermore, the angle of the inclined surface is set to 45°.

[0012] Furthermore, the spring is always in a compressed state.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The conductive assembly of the lithium iron phosphate battery is provided with a negative electrode, a rotating wheel, a positioning plate, a fixing plate, a battery body, a positive electrode, a conductive sheet, a winding roller, a rotating shaft, a pulling rope, a spring and a locking block. The fixing plate is inserted into the rectangular hole at the end of the positioning plate, and the upper end of the fixing plate pushes the locking block inward through the inclined surface. The locking block squeezes the spring. When the locking block corresponds to the position of the locking groove, the spring pushes the locking block to be stuck in the locking groove. When the locking block is stuck in the locking groove, the lower end of the positioning plate with the conductive sheet is against the electrode. When the conductive sheet needs to be removed, the rotating wheel is rotated, and the rotating wheel drives the winding roller to rotate through the rotating shaft. The two pulling ropes are wound around the winding roller and pull the two locking blocks. After the locking block moves into the slide groove, the rotating wheel can be lifted upward, and the rotating wheel drives the positioning plate to disengage from the two fixed plates, which is convenient for quick disassembly and assembly of the conductive assembly, improves the installation efficiency of the conductive assembly, and is convenient for replacing damaged conductive assemblies. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a conductive component of a lithium iron phosphate battery.

[0016] Figure 2 This is a side view structural diagram of a conductive component of a lithium iron phosphate battery.

[0017] Figure 3 for Figure 2 An enlarged schematic diagram of part A in the figure.

[0018] In the figure: 1. Negative electrode; 2. Rotating wheel; 3. Positioning plate; 4. Fixing plate; 5. Battery body; 6. Positive electrode; 7. Conductive sheet; 8. Winding roller; 9. Rotating shaft; 10. Pull rope; 11. Spring; 12. Locking block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figures 1 to 3 , the utility model provides a technical solution:

[0021] A conductive assembly for a lithium iron phosphate battery comprises a plurality of battery bodies 5 and a conductive assembly placed side by side, a positive electrode 6 and a negative electrode 1 being provided on the top of each battery body 5, the positive electrode 6 and the negative electrode 1 of two adjacent battery bodies 5 being electrically connected via the conductive assembly, the conductive assembly comprising a conductive sheet 7, a positioning plate 3 being fixedly provided on the upper end of the conductive sheet 7, the positioning plate 3 being provided with rectangular holes on both sides of the positive electrode 6 and the negative electrode 1, a fixing plate 4 being slidably provided in the rectangular hole, the lower end of the fixing plate 4 being fixedly connected to the battery body 5, a cavity being provided in the positioning plate 3, and a locking mechanism being provided in the cavity.

[0022] The locking mechanism includes a locking block 12, a sliding groove is opened on the hole wall of the rectangular hole close to the cavity, a through hole is provided between the sliding groove and the cavity, the locking block 12 is slidably set in the sliding groove, and one end of the locking block 12 extends to the outside of the sliding groove. The side wall of the fixed plate 4 is provided with a locking groove that matches the locking block 12, and an axial hole is provided at the center of the top of the cavity. A rotating shaft 9 is provided for rotation in the axial hole. One end of the rotating shaft 9 extends into the cavity and is fixed with a winding roller 8. A pull rope 10 is fixed on both sides of the winding roller 8. One end of the pull rope 10 passes through the through hole and is fixedly connected to the locking block 12. The pull rope 10 is always in a taut state. A spring 11 is fixed between the locking block 12 and the through hole, and the spring 11 is always in a compressed state.

[0023] A rotating wheel 2 is fixed on the upper end of the rotating shaft 9, and an anti-slip sleeve is provided on the circumferential wall of the rotating wheel 2. The anti-slip sleeve increases the friction of the side wall of the rotating wheel 2, making it easier for workers to rotate the rotating shaft 9 and improving the insulation performance.

[0024] An inclined surface is provided on the upper side of one end of the locking block 12 outside the chute, and the angle of the inclined surface is set to 45°. The inclined surface can facilitate the rectangular hole to push the locking block 12 into the chute and squeeze the spring 11.

[0025] When in use, the fixing plate 4 is inserted into the rectangular hole at the end of the positioning plate 3, and the upper end of the fixing plate 4 pushes the locking block 12 inward through the inclined surface, and the locking block 12 squeezes the spring 11. When the locking block 12 corresponds to the position of the locking groove, the spring 11 pushes the locking block 12 to be stuck in the locking groove. When the locking block 12 is stuck in the locking groove, the lower end of the positioning plate 3 with the conductive sheet 7 is against the electrode. When the conductive sheet 7 needs to be removed, the rotating wheel 2 is rotated, and the rotating wheel 2 drives the winding roller 8 to rotate through the rotating shaft 9. The two pull ropes 10 are wound around the winding roller 8 and pull the two locking blocks 12. After the locking block 12 moves to the slide groove, the rotating wheel 2 can be lifted upward, and the rotating wheel 2 drives the positioning plate 3 to disengage from the two fixing plates 4, which is convenient for quick disassembly and assembly of the conductive component, improves the installation efficiency of the conductive component, and facilitates the replacement of damaged conductive components.

[0026] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lithium iron phosphate battery conductive assembly, comprising a plurality of battery bodies (5) and conductive assemblies placed side by side, characterized in that: The top of each battery body (5) is provided with a positive electrode (6) and a negative electrode (1). The positive electrode (6) and the negative electrode (1) of two adjacent battery bodies (5) are electrically connected via a conductive component. The conductive component includes a conductive sheet (7). A positioning plate (3) is fixedly provided on the upper end of the conductive sheet (7). The positioning plate (3) is provided with rectangular holes on both sides of the positive electrode (6) and the negative electrode (1). A fixing plate (4) is slidably provided in the rectangular hole. The lower end of the fixing plate (4) is fixedly connected to the battery body (5). A cavity is provided in the positioning plate (3), and a locking mechanism is provided in the cavity.

2. A lithium iron phosphate battery conductive component according to claim 1, characterized in that: The locking mechanism includes a locking block (12), a sliding groove is provided on a hole wall of a side of the rectangular hole close to the cavity, a through hole is provided between the sliding groove and the cavity, the locking block (12) is slidably arranged in the sliding groove, one end of the locking block (12) extends outside the sliding groove, the side wall of the fixed plate (4) is provided with a locking groove matched with the locking block (12), an axial hole is provided at the center of the top of the cavity, a rotating shaft (9) is provided in the axial hole for rotation, one end of the rotating shaft (9) extends into the cavity and is fixed with a winding roller (8), a pull rope (10) is fixed on both sides of the winding roller (8), one end of the pull rope (10) passes through the through hole and is fixedly connected to the locking block (12), and a spring (11) is fixed between the locking block (12) and the through hole.

3. The lithium iron phosphate battery conductive component according to claim 2, characterized in that: A rotating wheel (2) is fixedly provided on the upper end of the rotating shaft (9).

4. A lithium iron phosphate battery conductive component according to claim 3, characterized in that: The circumferential wall of the rotating wheel (2) is provided with an anti-slip sleeve.

5. The lithium iron phosphate battery conductive component according to claim 2, characterized in that: The locking block (12) is provided with an inclined surface on the upper side of one end outside the sliding groove.

6. The conductive component of a lithium iron phosphate battery according to claim 5, characterized in that: The angle of the inclined surface is set to 45°.

7. The lithium iron phosphate battery conductive component according to claim 2, characterized in that: The spring (11) is always in a compressed state.

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