Lithium iron phosphate battery pack simple to assemble

Abstract

The utility model relates to the technical field of battery packs, and discloses a lithium iron phosphate battery pack simple to assemble, which comprises a base, a lithium iron phosphate battery body is arranged on the inner wall of the base, a connecting shell is fixedly connected to the outer wall of the lithium iron phosphate battery body, a connecting groove is formed in one side of the outer wall of the connecting shell, and the connecting groove is communicated with the connecting shell. The inner wall of the connecting groove is fixedly connected with a positioning rod and slidably connected with two sets of clamping columns, and the outer walls of the two sets of clamping columns are sleeved with third springs and fixedly connected with fixing rings. When a lithium iron phosphate battery body is assembled, a connecting shell is connected with the lithium iron phosphate battery body, and then a convex block is clamped to the inner wall of a concave block, so that primary assembly is completed, and after the primary assembly is completed, a connecting block is clamped to the inner wall of a connecting groove along the outer wall of a positioning rod, and in the clamping process of the connecting block, the connecting block is clamped to the inner wall of the connecting groove; and the inner walls of the two groups of clamping columns are extruded, so that the clamping columns are pushed to move on the inner walls of the connecting grooves.

Description

Technical Field

[0001] The utility model relates to the technical field of battery packs, in particular to a lithium iron phosphate battery pack with simple assembly. Background Art

[0002] Lithium iron phosphate battery refers to a lithium-ion battery that uses lithium iron phosphate as the positive electrode material. Its performance mainly depends on the positive and negative electrode materials. Its biggest features are cycle life and performance safety. Lithium iron phosphate battery has the advantages of high operating voltage, high energy density, long cycle life, good safety performance, low self-discharge rate and no memory effect.

[0003] However, the following problems still exist in actual use:

[0004] (1) When assembling existing lithium iron phosphate batteries, they first need to be neatly arranged and then fixed and assembled with iron sheets and bolts. This method is time-consuming and labor-intensive, with low assembly efficiency. In addition, there are certain safety issues when assembling the batteries manually, resulting in poor safety.

[0005] (2) After the existing device is installed, the lithium iron phosphate battery is usually fixed by a simple limiting device, which has a poor fixing effect. When bumps occur, the position of the lithium iron phosphate battery is easily shifted, and the stability is low. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a lithium iron phosphate battery pack that is easy to assemble and has the advantages of being easy to assemble and being able to fix the lithium iron phosphate batteries, thereby solving the problems raised in the background technology.

[0007] The utility model provides the following technical solution: a lithium iron phosphate battery pack with simple assembly, comprising a base, the inner wall of the base is provided with a lithium iron phosphate battery body, the outer wall of the lithium iron phosphate battery body is fixedly connected with a connecting shell, one side of the outer wall of the connecting shell is provided with a connecting groove, the inner wall of the connecting groove is fixedly connected with a positioning rod and slidably connected with two groups of clamping columns, the outer walls of the two groups of the clamping columns are sleeved with springs three and fixedly connected with fixing rings, one end of the spring three is fixedly connected to one side of the inner wall of the connecting groove, and the other end of the spring three is fixedly connected to one side of the outer wall of the fixing ring.

[0008] Preferably, two groups of mounting blocks are fixedly connected to both sides of the outer wall of the base, one side of the outer wall of the two groups of mounting blocks is provided with mounting holes, the inner wall of the base is provided with four groups of grooves 1 and is slidably connected with a receiving plate, the top of the receiving plate is fixedly connected with four groups of positioning blocks, the inner walls of the four groups of positioning blocks are movably engaged with the bottom end of the lithium iron phosphate battery body, the inner walls of the four groups of grooves 1 are slidably connected with a connecting circular plate, one side of the outer wall of the connecting circular plate is fixedly connected to the outer wall of the receiving plate, the bottom end of the connecting circular plate is fixedly connected with a spring 1, and one end of the spring 1 is fixedly connected to the bottom of the inner wall of the groove 1.

[0009] Preferably, the outer wall of the connecting shell is fixedly connected with a fixing block and a connecting block, the outer wall of the connecting block is provided with a positioning groove and a clamping groove, the inner wall of the positioning groove is movably connected with the positioning rod, and the inner wall of the clamping groove is movably connected with one end of the clamping column.

[0010] Preferably, screws are threadedly connected on both sides of the outer wall of the base, one end of the screw is fixedly connected to a knob, the other end of the screw is rotatably connected to a connecting plate, one side of the outer wall of the connecting plate is fixedly connected to two groups of blocks, one side of the outer wall of the two groups of blocks is provided with a groove 2, and the inner wall of the groove 2 is movably engaged with the fixed block.

[0011] Preferably, a concave block and a convex block are fixedly connected to the outer wall of the connecting shell, and the inner wall of the concave block is movably engaged with the convex block.

[0012] Preferably, a telescopic rod is fixedly connected to one side of the outer wall of the connecting plate, one end of the telescopic rod is fixedly connected to one side of the inner wall of the base, a spring 2 is sleeved on the outer wall of the telescopic rod, one end of the spring 2 is fixedly connected to one side of the outer wall of the connecting plate, and the other end of the spring 2 is fixedly connected to one side of the inner wall of the base.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. When assembling the lithium iron phosphate battery body, the connecting shell is connected to the lithium iron phosphate battery body, and then the convex block is clamped to the inner wall of the concave block to complete the preliminary assembly. After completion, the connecting block is clamped to the inner wall of the connecting groove along the outer wall of the positioning rod. In the process of clamping the connecting block, the inner walls of the two groups of clamping columns are squeezed, thereby pushing the clamping columns to move on the inner wall of the connecting groove. When one side of the outer wall of the connecting block contacts one side of the inner wall of the connecting groove, the clamping column will be reset due to the rebound force generated by the spring three, thereby forming a clamping connection with the inner wall of the clamping groove, and then completing the assembly. Through the setting of the device, the lithium iron phosphate battery body can be assembled more conveniently, which solves the problem of being more complicated in assembling the lithium iron phosphate battery body in traditional devices, greatly improving the practicality and assembly efficiency of the device. At the same time, the setting of the connecting shell can achieve the effect of not needing to directly contact the lithium iron phosphate battery body during assembly, thereby improving the safety of the device to a certain extent.

[0015] 2. After the lithium iron phosphate battery body is clamped to the inner wall of the base through the positioning block, the screw is driven to rotate on one side of the outer wall of the base by turning the knob, thereby pushing the connecting plate to move on the inner wall of the base. The movement of the connecting plate can drive the sleeve block to move until the inner wall of the groove 2 is clamped with the fixing block. After the clamping, the lithium iron phosphate battery body can be fixed. Through the setting of the device, the lithium iron phosphate battery body can be fixed after it is installed, which solves the problem of poor fixing effect in traditional devices and greatly improves the stability and reliability of the device. At the same time, the setting of the second spring can play a stabilizing role in the process of moving the connecting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the base of the utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the base of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the connecting plate of the utility model;

[0020] Figure 5 This is a schematic diagram of the connection shell structure of the utility model;

[0021] Figure 6 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0022] In the figure: 1. base; 2. mounting block; 3. mounting hole; 4. knob; 5. concave block; 6. connecting shell; 7. lithium iron phosphate battery body; 8. positioning block; 9. sleeve block; 10. connecting circular plate; 11. receiving plate; 12. spring one; 13. groove one; 14. groove two; 15. connecting plate; 16. spring two; 17. telescopic rod; 18. screw rod; 19. connecting block; 20. positioning groove; 21. snap-on groove; 22. fixing block; 23. convex block; 24. connecting groove; 25. spring three; 26. fixing ring; 27. positioning rod; 28. snap-on column. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Reference Figure 1-6 , a lithium iron phosphate battery pack with simple assembly, including a base 1, the inner wall of the base 1 is provided with a lithium iron phosphate battery body 7, the outer wall of the lithium iron phosphate battery body 7 is fixedly connected with a connecting shell 6, one side of the outer wall of the connecting shell 6 is provided with a connecting groove 24, the inner wall of the connecting groove 24 is fixedly connected with a positioning rod 27 and slidably connected with two groups of clamping columns 28, the outer walls of the two groups of clamping columns 28 are sleeved with springs three 25 and fixedly connected with a fixing ring 26, one end of the spring three 25 is fixedly connected to one side of the inner wall of the connecting groove 24, and the other end of the spring three 25 is fixedly connected to one side of the outer wall of the fixing ring 26. Through the setting of the connecting groove 24, the lithium iron phosphate battery body 7 can be assembled more quickly and conveniently, which solves the problem of time-consuming and labor-intensive assembly in traditional devices, greatly improving the convenience and practicality of the device. At the same time, the setting of the positioning rod 27 can play a role of positioning guidance during the assembly process, thereby improving the assembly efficiency.

[0025] See also Figure 1 , Figure 2 and Figure 3Two groups of mounting blocks 2 are fixedly connected to both sides of the outer wall of the base 1, and mounting holes 3 are provided on one side of the outer walls of the two groups of mounting blocks 2. Four groups of grooves 13 are provided on the inner wall of the base 1 and are slidably connected with a receiving plate 11. Four groups of positioning blocks 8 are fixedly connected to the top of the receiving plate 11. The inner walls of the four groups of positioning blocks 8 are movably connected to the bottom end of the lithium iron phosphate battery body 7. The inner walls of the four groups of grooves 13 are slidably connected with a connecting circular plate 10. One side of the outer wall of the connecting circular plate 10 is fixedly connected to the outer wall of the receiving plate 11. A spring 12 is fixedly connected to the bottom end of the connecting circular plate 10. One end of the spring 12 is fixedly connected to the bottom of the inner wall of the groove 13. Through the setting of the spring 12, it can play a role of buffering protection after the lithium iron phosphate battery body 7 is connected to the inner wall of the base 1, thereby greatly improving the stability of the device.

[0026] See also Figure 1 and Figure 5 The outer wall of the connecting shell 6 is fixedly connected with a fixing block 22 and a connecting block 19. The outer wall of the connecting block 19 is provided with a positioning groove 20 and a clamping groove 21. The inner wall of the positioning groove 20 is movably connected with the positioning rod 27, and the inner wall of the clamping groove 21 is movably connected with one end of the clamping column 28.

[0027] See also Figure 2 and Figure 4 Both sides of the outer wall of the base 1 are threadedly connected with screws 18, one end of the screw 18 is fixedly connected with a knob 4, and the other end of the screw 18 is rotatably connected with a connecting plate 15, and one side of the outer wall of the connecting plate 15 is fixedly connected with two sets of sleeve blocks 9, and one side of the outer wall of the two sets of sleeve blocks 9 is provided with a groove 214, and the inner wall of the groove 214 is movably connected with the fixed block 22. By setting the sleeve block 9 and the fixed block 22 for clamping, the lithium iron phosphate battery body 7 can be fixed, which solves the problem of poor fixing effect in traditional devices and greatly improves the stability and reliability of the device.

[0028] See also Figure 1 and Figure 5 The outer wall of the connecting shell 6 is fixedly connected with the concave block 5 and the convex block 23 , and the inner wall of the concave block 5 is movably engaged with the convex block 23 .

[0029] See also Figure 4 A telescopic rod 17 is fixedly connected to one side of the outer wall of the connecting plate 15, one end of the telescopic rod 17 is fixedly connected to one side of the inner wall of the base 1, and a spring 2 16 is sleeved on the outer wall of the telescopic rod 17, one end of the spring 2 16 is fixedly connected to one side of the outer wall of the connecting plate 15, and the other end of the spring 2 16 is fixedly connected to one side of the inner wall of the base 1. Through the arrangement of the spring 2 16, the connecting plate 15 can be made more stable when moving, which greatly improves the stability of the device.

[0030] Working principle, when assembling the lithium iron phosphate battery body 7, the connecting shell 6 is connected to the lithium iron phosphate battery body 7, and then the convex block 23 is clamped to the inner wall of the concave block 5 to complete the preliminary assembly. After completion, the connecting block 19 is clamped to the inner wall of the connecting groove 24 along the outer wall of the positioning rod 27. In the process of clamping the connecting block 19, the inner walls of the two groups of clamping columns 28 will be squeezed, thereby pushing the clamping columns 28 to move on the inner wall of the connecting groove 24. When one side of the outer wall of the connecting block 19 contacts one side of the inner wall of the connecting groove 24, the clamping column 28 will be reset due to the rebound force generated by the spring three 25, thereby being connected to the clamping groove The inner wall of the groove 21 is snap-fitted to complete the assembly. After the assembly, the lithium iron phosphate battery body 7 is snap-fitted to the inner wall of the base 1 through the positioning block 8. By turning the knob 4, the screw 18 is driven to rotate on one side of the outer wall of the base 1, thereby pushing the connecting plate 15 to move on the inner wall of the base 1. The movement of the connecting plate 15 can drive the sleeve block 9 to move until the inner wall of the groove 2 14 is snap-fitted to the fixing block 22. After the snap-fitting, the lithium iron phosphate battery body 7 can be fixed. At the same time, after the lithium iron phosphate battery body 7 is snap-fitted to the inner wall of the base 1, the rebound force generated by the spring 12 will play a role of buffering protection, thereby improving the stability of the device.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lithium iron phosphate battery pack with simple assembly, characterized in that: The invention comprises a base (1), the inner wall of which is provided with a lithium iron phosphate battery body (7), the outer wall of which is fixedly connected with a connecting shell (6), one side of the outer wall of which is provided with a connecting groove (24), the inner wall of which is fixedly connected with a positioning rod (27) and slidably connected with two groups of clamping columns (28), the outer walls of the two groups of clamping columns (28) are sleeved with springs three (25) and fixedly connected with fixing rings (26), one end of which is fixedly connected with one side of the inner wall of the connecting groove (24), and the other end of which is fixedly connected with one side of the outer wall of the fixing ring (26).

2. A lithium iron phosphate battery pack with simple assembly according to claim 1, characterized in that: Two groups of mounting blocks (2) are fixedly connected to both sides of the outer wall of the base (1), and one side of the outer wall of the two groups of mounting blocks (2) is provided with mounting holes (3). The inner wall of the base (1) is provided with four groups of grooves (13) and is slidably connected with a receiving plate (11). The top of the receiving plate (11) is fixedly connected with four groups of positioning blocks (8). The inner walls of the four groups of positioning blocks (8) are movably engaged with the bottom end of the lithium iron phosphate battery body (7). The inner walls of the four groups of grooves (13) are slidably connected with a connecting circular plate (10). One side of the outer wall of the connecting circular plate (10) is fixedly connected with the outer wall of the receiving plate (11). The bottom end of the connecting circular plate (10) is fixedly connected with a spring (12), and one end of the spring (12) is fixedly connected with the bottom of the inner wall of the groove (13).

3. A lithium iron phosphate battery pack with simple assembly according to claim 1, characterized in that: The outer wall of the connecting shell (6) is fixedly connected with a fixing block (22) and a connecting block (19); the outer wall of the connecting block (19) is provided with a positioning groove (20) and a clamping groove (21); the inner wall of the positioning groove (20) is movably plugged with a positioning rod (27); and the inner wall of the clamping groove (21) is movably clamped with one end of a clamping column (28).

4. A lithium iron phosphate battery pack with simple assembly according to claim 1, characterized in that: Screw rods (18) are threadedly connected to both sides of the outer wall of the base (1); one end of the screw rod (18) is fixedly connected to a knob (4); the other end of the screw rod (18) is rotatably connected to a connecting plate (15); one side of the outer wall of the connecting plate (15) is fixedly connected to two groups of sleeve blocks (9); one side of the outer wall of the two groups of sleeve blocks (9) is provided with a second groove (14); the inner wall of the second groove (14) is movably engaged with a fixed block (22).

5. A lithium iron phosphate battery pack with simple assembly according to claim 1, characterized in that: The outer wall of the connecting shell (6) is fixedly connected with a concave block (5) and a convex block (23), and the inner wall of the concave block (5) is movably engaged with the convex block (23).

6. A lithium iron phosphate battery pack with simple assembly according to claim 4, characterized in that: A telescopic rod (17) is fixedly connected to one side of the outer wall of the connecting plate (15), one end of the telescopic rod (17) is fixedly connected to one side of the inner wall of the base (1), a second spring (16) is sleeved on the outer wall of the telescopic rod (17), one end of the second spring (16) is fixedly connected to one side of the outer wall of the connecting plate (15), and the other end of the second spring (16) is fixedly connected to one side of the inner wall of the base (1).

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