Stable supporting assembly for lithium iron phosphate battery pack

Abstract

The utility model discloses a stable supporting assembly for a lithium iron phosphate battery pack, which comprises a plurality of separation frames, the separation frames are positioned in a battery box body, and single batteries are positioned in two adjacent separation frames; the partition frame is of a rectangular frame structure, a rectangular through groove is formed in the middle of the partition frame, and a plurality of supporting plates are arranged in the rectangular through groove. Connecting assemblies are arranged on the partition frames and close to the ends, each connecting assembly comprises a mounting frame, the longitudinal section of each mounting frame is in an inverted U shape, extension plates are arranged on the two sides of each mounting frame and close to the lower end, and strip-shaped grooves are formed in the extension plates; embedded bolts are arranged on the single batteries and close to the front and rear ends; the upper ends of the embedded bolts extend into the strip-shaped grooves and are in threaded connection with locking nuts; a through groove capable of containing the embedded bolt is formed in the extension plate and communicates with the strip-shaped groove. The separation frame is suitable for single batteries with different sizes, the supporting effect is good, and the internal structural strength of the battery pack is improved.

Description

Technical Field

[0001] The utility model relates to the field of battery pack structures, and in particular to a stable support component for a lithium iron phosphate battery pack. Background Art

[0002] A lithium iron phosphate battery is a lithium-ion battery that uses lithium iron phosphate as the positive electrode material and carbon as the negative electrode material. During the charging process, 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 an external circuit to the negative electrode, maintaining the chemical reaction balance. The discharge process is the opposite: lithium ions are released from the negative electrode, travel through the electrolyte to the positive electrode, and simultaneously, electrons are released from the negative electrode and travel through an external circuit to the positive electrode, providing energy to the outside world.

[0003] Lithium iron phosphate batteries are composed of multiple cells. The stability of each cell's installation significantly impacts the overall stability of the battery pack. To dissipate heat, partitions are typically placed between adjacent cells. These partitions not only separate the cells but also enhance the overall structural strength of the battery pack. However, existing technologies require separate connection structures for each cell. Due to the varying size, thickness, and other characteristics of individual cells, these structures are not universally applicable and present limitations. Utility Model Content

[0004] The present invention aims to solve the above-mentioned technical problems that the separation and connection structure is not universal and has limitations due to the different volumes, thicknesses, etc. of single cells, and provides a stable support assembly for a lithium iron phosphate battery pack.

[0005] To solve the above technical problems, the present invention provides a technical solution: a lithium iron phosphate battery pack stabilizing support assembly, comprising a plurality of partitions, wherein the partitions are located in a battery box, and the single cells are located in two adjacent partitions; the partitions are rectangular frame structures with a rectangular through slot in the middle, and a plurality of support plates are arranged in the rectangular through slot;

[0006] A connecting assembly is provided on the top of the partition frame and near one end, and the connecting assembly includes a mounting frame, the longitudinal section of the mounting frame is an inverted U-shape, and extension plates are provided on both sides of the mounting frame and near the lower end, and the extension plates are provided with strip grooves; embedded bolts are provided on the top of the single battery and near the front and rear ends, and the upper ends of the embedded bolts extend into the strip grooves and are threadedly connected with locking nuts; a through groove that can accommodate the embedded bolts is provided in the extension plate and connected to the strip groove.

[0007] Furthermore, a plurality of heat dissipation slots are provided on the outside of the battery box, and a box cover is provided on the top of the battery box, which is detachably connected to the upper end of the battery box by bolts.

[0008] Furthermore, both sides of the support plate are flush with both sides of the partition frame.

[0009] Furthermore, the partition frame is provided with an assembly hole 1 on the top and near the front and rear ends, and the mounting frame is provided with an assembly hole 2 corresponding to the assembly hole 1. The assembly hole 2 corresponds to one of the assembly holes 1 and is connected by bolts and nuts.

[0010] Furthermore, the through groove is in the shape of an elongated strip and is smaller than the strip groove.

[0011] Furthermore, the connection components are arranged alternately between the plurality of single batteries.

[0012] The advantages of this utility model compared with the prior art are:

[0013] Since the embedded bolts used to fix the single battery can move on the extension plate, that is, the connecting assembly can move relative to the single battery, that is, the partition frame can move and change its position relative to the single battery, the partition frame is suitable for single batteries of different sizes, has a good supporting effect, and improves the internal structural strength of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 It is a schematic diagram of the internal structure of the box of the utility model.

[0016] Figure 3 It is a structural schematic diagram of the partition frame of the utility model.

[0017] Figure 4 It is a schematic diagram of the structure of the connection component of the utility model.

[0018] Figure 5 It is a schematic diagram of the cross-sectional structure of the extension plate of the utility model.

[0019] As shown in the figure: 1. Partition frame, 2. Battery box, 3. Single battery, 4. Heat dissipation slot, 5. Box cover, 6. Support plate, 7. Mounting frame, 8. Extension plate, 9. Assembly hole 1, 10. Assembly hole 2, 11. Strip groove, 12. Embedded bolt, 13. Lock nut, 14. Through slot. DETAILED DESCRIPTION

[0020] The present invention will be described in further detail below with reference to the accompanying drawings.

[0021] Example 1, combined with the attached Figure 1-2 A lithium iron phosphate battery pack stable support assembly includes several partition frames 1, the partition frames 1 are located in a battery box 2, and single cells 3 are located in two adjacent partition frames 1; a battery module as a whole is formed by connecting multiple single cells 3 in series.

[0022] Combined with attachment Figure 1-2 A plurality of heat dissipation slots 4 are provided on the outside of the battery box 2 to facilitate heat dissipation of the internal single battery 3; a box cover 5 is provided on the battery box 2, and the box cover 5 is detachably connected to the upper end of the battery box 2 by bolts to protect the single battery 3.

[0023] Combined with attachment Figure 1-3 The partition frame 1 is a rectangular frame structure with a rectangular through groove in the middle. Several support plates 6 are arranged in the rectangular through groove, so that a passage is formed between adjacent support plates 6, which is convenient for heat dissipation of the single battery 3 during operation; both sides of the support plate 6 are flush with the two sides of the partition frame 1, so that the support plate 6 can play a certain supporting role for the single battery 3.

[0024] Combined with attachment Figure 2 、 4 5. Connecting assemblies are provided on the top of the partition frame 1 and near one end. The connecting assemblies are staggered between the multiple single cells. The connecting assemblies include a mounting frame 7. The mounting frame 7 has an inverted U-shaped longitudinal section and is fixed to the upper end of the partition frame 1. Extension plates 8 are provided on both sides of the mounting frame 7 and near the lower end for mounting and connecting multiple single cells 3. The extension plates 8 are provided with strip grooves 11. Embedded bolts 12 are provided on the top of the single cells 3 and near the front and rear ends. The upper ends of the embedded bolts 12 extend into the strip grooves 11 and are threadedly connected with locking nuts 13. A through groove 14 capable of accommodating the embedded bolts 12 is provided in the extension plate 8 and connected to the strip grooves 11. The through groove 14 is long and smaller than the strip groove 11. In the above structure, the embedded nut 12 provided on the upper end of the single cell 3 enters the strip groove 11 through the through groove 14. According to the size of the single cell 3, the position of the embedded bolt 12 in the through groove 14 and the strip groove 11 can be adjusted, and then fixed by the locking nut 13.

[0025] Combined with attachment Figure 3-4 , there are assembly holes 9 on the top of the partition frame 1 and near the front and rear ends, and assembly holes 10 corresponding to the assembly holes 9 are provided on the mounting frame 7. The assembly holes 10 correspond to one of the assembly holes 9 and are connected by bolts and nuts, so that the mounting frame 7 and the support frame 1 can be disassembled.

[0026] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A lithium iron phosphate battery pack stabilizing support assembly, characterized by: The invention comprises a plurality of partition frames (1), wherein the partition frames (1) are located in a battery box (2), and the single cells (3) are located in two adjacent partition frames (1); the partition frames (1) are rectangular frame structures, with a rectangular through slot provided in the middle, and a plurality of support plates (6) arranged in the rectangular through slot; A connection assembly is provided on the upper surface of the partition frame (1) and near one end thereof, the connection assembly comprising a mounting frame (7), the mounting frame (7) having an inverted U-shaped longitudinal section, an extension plate (8) provided on both sides of the mounting frame (7) and near the lower end thereof, the extension plate (8) provided with a strip groove (11); an embedded bolt (12) is provided on the upper surface of the single battery (3) and near the front and rear ends thereof, the upper end of the embedded bolt (12) extending into the strip groove (11) and being threadedly connected to a locking nut (13); a through groove (14) capable of accommodating the embedded bolt (12) is provided in the extension plate (8) and in communication with the strip groove (11).

2. The lithium iron phosphate battery pack stabilizing support assembly according to claim 1, characterized in that: The battery box (2) is provided with a plurality of heat dissipation slots (4) on the outside. The battery box (2) is provided with a box cover (5) on the top. The box cover (5) is detachably connected to the upper end of the battery box (2) via bolts.

3. The lithium iron phosphate battery pack stabilizing support assembly according to claim 1, characterized in that: Both sides of the support plate (6) are flush with both sides of the partition frame (1).

4. The lithium iron phosphate battery pack stabilizing support assembly according to claim 1, characterized in that: The partition frame (1) is provided with a first assembly hole (9) on the top and near the front and rear ends, and the mounting frame (7) is provided with a second assembly hole (10) corresponding to the first assembly hole (9). The second assembly hole (10) corresponds to one of the first assembly holes (9) and is connected by a bolt and a nut.

5. The lithium iron phosphate battery pack stabilizing support assembly according to claim 1, characterized in that: The through groove (14) is in the shape of an elongated strip and is smaller than the strip groove (11).

6. The lithium iron phosphate battery pack stabilizing support assembly according to claim 1, characterized in that: The connection components are arranged alternately between a plurality of single batteries (3).

Images