BMS (Battery Management System) protection plate structure in lithium iron battery for parking

Abstract

The utility model relates to a BMS (Battery Management System) protection plate structure in an iron lithium battery for parking, which belongs to the technical field of iron lithium batteries and comprises a battery shell and a top plate, a main body assembly is arranged between the outer side of the battery shell and the outer side of the top plate, and a fixing assembly for mounting and fixing a BMS protection plate is arranged at the top of the top plate. The fixing assembly comprises two fixing blocks slidably connected into the top plate, two inserting grooves are formed in the top of the top plate, moving grooves are formed in the tops of the fixing blocks, vertical plates are slidably connected into the moving grooves, and fixing rods are fixed to the opposite sides of the two vertical plates. Telescopic rods are fixed to the opposite sides of the two vertical plates, and springs are fixed to the opposite sides of the two vertical plates. According to the BMS protection plate structure in the lithium iron battery for parking, after the lithium iron battery is scrapped, the BMS protection plate can be quickly and effectively recycled, and the practicability of the BMS protection plate structure in the lithium iron battery for parking is improved.

Description

Technical Field

[0001] This utility model relates to the field of lithium iron phosphate battery technology, specifically to a BMS protection board structure in a lithium iron phosphate battery for parking. Background Technology

[0002] Lithium iron phosphate (LFP) batteries are a type of lithium battery, with lithium iron phosphate as the primary cathode material. Compared to traditional lead-acid batteries, lithium-ion batteries have significant advantages in terms of operating voltage, energy density, and cycle life. LFP batteries, however, typically require a battery management system (BMS) for monitoring and protection during use.

[0003] In existing parking lithium iron phosphate batteries, the BMS protection board structure typically only allows for the reuse of usable parts after the battery is scrapped. However, improper handling during dismantling can pollute the environment due to the electrolyte in the lithium iron phosphate battery. In particular, the existing BMS protection board is usually directly welded to the cell assembly, making dismantling cumbersome and hindering the recycling of the BMS protection board, thus reducing the practicality of the existing BMS protection board structure in parking lithium iron phosphate batteries. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a BMS protection board structure for parking lithium iron phosphate batteries, which has advantages such as easy removal of the BMS protection board from scrapped lithium iron phosphate batteries for recycling, and solves the problem of low practicality of existing BMS protection board structures in parking lithium iron phosphate batteries.

[0006] (II) Technical Solution

[0007] To facilitate the removal and recycling of the BMS protection board from the scrapped lithium iron phosphate battery, this utility model provides the following technical solution: A BMS protection board structure for a parking lithium iron phosphate battery, comprising a battery casing and a top plate, wherein a main body assembly is installed between the outer side of the battery casing and the outer side of the top plate, and a fixing assembly for installing and fixing the BMS protection board is installed on the top of the top plate.

[0008] The fixing assembly includes two fixing blocks slidably connected inside the top plate. The top of the top plate has two insertion slots, and the top of the fixing blocks has a moving slot. A vertical plate is slidably connected inside the moving slot. A fixing rod is fixed on the opposite side of the two vertical plates, a telescopic rod is fixed on the opposite side of the two vertical plates, and a spring is fixed on the opposite side of the two vertical plates.

[0009] Furthermore, the main component includes a base plate fixed to the top of the battery casing, a cell assembly body fixed inside the base plate, a connecting seat fixed to the top of the top plate, a protective box slidably connected to the top of the top plate, a BMS protection board body fixed inside the protective box by bolts, a first integrated port fixed to the bottom of the protective box, and a second integrated port fixed to the top of the top plate.

[0010] Furthermore, the top of the first integrated port penetrates through the protection box and extends into the interior of the protection box to connect with the BMS protection board body.

[0011] Furthermore, the tops of the two fixing blocks are fixed to the bottom of the protective box, and the fixing blocks are inserted into the insertion slots.

[0012] Furthermore, the right side of the spring on the left is fixed to the inner right side wall of the left insertion slot, and the left side of the spring on the right is fixed to the inner left side wall of the right insertion slot.

[0013] Furthermore, the end of the telescopic rod away from the vertical plate is fixed to the top plate, and the spring is located on the outside of the telescopic rod.

[0014] Furthermore, the opposite ends of the two fixing rods pass through the fixing block, the insertion slot, and the top plate in sequence, and extend into the interior of the top plate to be inserted into the top plate.

[0015] Furthermore, the width of the vertical plate is equal to the width of the moving groove, and the height of the vertical plate is greater than the height of the moving groove.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a BMS protection board structure for a parking lithium iron phosphate battery, which has the following advantages:

[0018] The BMS protection board structure in this parking lithium iron phosphate battery, through the coordinated use of the battery casing, top plate, main body components, and fixing components, allows for convenient and stable fixing of the BMS protection board cell assembly without welding during actual use. This enables the BMS protection board to be quickly and effectively recycled when the lithium iron phosphate battery is scrapped. The operation is relatively simple, improving the practicality of the BMS protection board structure in the parking lithium iron phosphate battery. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a partially enlarged schematic diagram of part A in the structure of this utility model;

[0021] Figure 3 This is a three-dimensional schematic diagram of the fixing block connection structure in the present invention.

[0022] In the diagram: 1 Battery casing, 2 Top plate, 200 Main assembly, 201 Base plate, 202 Cell assembly body, 203 Connector, 204 Protection box, 205 BMS protection board body, 206 First integrated port, 207 Second integrated port, 300 Fixing assembly, 301 Fixing block, 302 Insertion slot, 303 Moving slot, 304 Vertical plate, 305 Fixing rod, 306 Telescopic rod, 307 Spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-3 This utility model provides a technical solution: a BMS protection board structure in a parking lithium iron phosphate battery, including a battery shell 1 and a top plate 2, a main body component 200 is installed between the outer side of the battery shell 1 and the outer side of the top plate 2, and a fixing component 300 for installing and fixing the BMS protection board is installed on the top of the top plate 2.

[0025] By using the battery casing 1, top plate 2, main body component 200 and fixing component 300 together, the BMS protection board cell group can be conveniently and stably fixed without welding during actual use. Thus, when the lithium iron phosphate battery is scrapped, the BMS protection board can be quickly and effectively recycled. The operation is relatively simple, which improves the practicality of the BMS protection board structure in parking lithium iron phosphate batteries.

[0026] In this embodiment, the main component 200 is the structure of a parking lithium iron phosphate battery.

[0027] like Figure 1 , Figure 2 and Figure 3 As shown, the main component 200 includes a base plate 201 fixed to the top of the battery casing 1, a cell assembly body 202 fixed inside the base plate 201, a connecting seat 203 fixed to the top of the top plate 2, a protective box 204 slidably connected to the top of the top plate 2, a BMS protection board body 205 fixed inside the protective box 204 by bolts, a first integrated port 206 fixed to the bottom of the protective box 204, and a second integrated port 207 fixed to the top of the top plate 2.

[0028] It should be noted that the top of the first integrated port 206 penetrates through the protection box 204 and extends into the interior of the protection box 204 to connect with the BMS protection board body 205, ensuring that the BMS protection board body 205 can be connected to the lithium iron phosphate battery, thereby achieving the expected function of monitoring and protecting the lithium iron phosphate battery.

[0029] In addition, the battery cell assembly body 202 is formed by fixing several lithium batteries through a battery bracket and connecting them to each other through nickel strips, and the connector 203 is a structure for connecting to a power source.

[0030] In this embodiment, the fixing component 300 is a structure for fixing the BMS protection board.

[0031] like Figure 1 , Figure 2 and Figure 3 As shown, the fixing component 300 includes two fixing blocks 301 slidably connected inside the top plate 2. The top of the top plate 2 has two insertion slots 302. The top of the fixing blocks 301 has a moving slot 303. A vertical plate 304 is slidably connected inside the moving slot 303. A fixing rod 305 is fixed on the opposite side of the two vertical plates 304. A telescopic rod 306 is fixed on the opposite side of the two vertical plates 304. A spring 307 is fixed on the opposite side of the two vertical plates 304.

[0032] It should be noted that the tops of the two fixing blocks 301 are fixed to the bottom of the protective box 204 to ensure that the protective box 204 can be fixed by the fixing blocks 301. The fixing blocks 301 are inserted into the insertion slots 302 to make the fixing blocks 301 more stable.

[0033] In addition, the right side of the left spring 307 is fixed to the inner right side wall of the left insertion slot 302, and the left side of the right spring 307 is fixed to the inner left side wall of the right insertion slot 302, ensuring that the spring 307 is fixed. The spring 307 is located outside the telescopic rod 306, ensuring that the spring 307 can undergo the expected elastic deformation to achieve the expected elastic effect.

[0034] In addition, the end of the telescopic rod 306 away from the vertical plate 304 is fixed to the top plate 2. The telescopic rod 306 is fixed. The opposite ends of the two fixing rods 305 pass through the fixing block 301, the insertion groove 302 and the top plate 2 in sequence and extend into the interior of the top plate 2 to be inserted into the top plate 2, so as to ensure that the fixing rod 305 can be inserted into the top plate 2, thereby fixing the fixing block 301 to the top plate 2.

[0035] Meanwhile, the width of the vertical plate 304 is equal to the width of the moving groove 303, making the vertical plate 304 slide more stably in the moving groove 303. The height of the vertical plate 304 is greater than the height of the moving groove 303, ensuring that the staff can move the vertical plate 304 more conveniently.

[0036] The working principle of the above embodiments is as follows:

[0037] In use, the BMS protection board is plugged in through the first integrated port 206 and the second integrated port 207 to ensure that it can perform its expected monitoring and protection functions for the lithium iron phosphate battery. When the lithium iron phosphate battery is scrapped and needs to be removed, simply pull the left vertical plate 304 to the right and the right vertical plate 304 to the left at the same time. At this time, the spring 307 is in a compressed state, which drives the fixing rod 305 to move left and right for adjustment, thereby separating the fixing rod 305 from the top plate 2 and thus losing the limit on the fixing block 301. The fixing block 301 can then be pulled out from the insertion slot 302, thereby quickly and effectively separating the protection box 204 from the top plate 2 and quickly and effectively recycling the BMS protection board 205. When it is necessary to install again, the vertical plate 304 is released, and the spring 307 returns to its original position, which drives the fixing rod 305 to be fixed to the top plate 2, thereby achieving installation. The installation and disassembly process is relatively simple.

[0038] Compared with existing technologies, the BMS protection board structure in this parking lithium iron phosphate battery, through the coordinated use of the battery casing 1, top plate 2, main body component 200, and fixing component 300, allows for convenient and stable fixing of the BMS protection board cell assembly without welding during actual use. This enables the BMS protection board to be quickly and effectively recycled when the lithium iron phosphate battery is scrapped. The operation is relatively simple, improving the practicality of the BMS protection board structure in the parking lithium iron phosphate battery and solving the problem of low practicality of the existing BMS protection board structure in parking lithium iron phosphate batteries.

[0039] All electrical components mentioned in this article are electrically connected to the controller and power supply. The control method of this utility model is controlled by the controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The provision of external power supply is also common knowledge in the field. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0040] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0041] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A BMS protection board structure for a parking lithium iron phosphate battery, comprising a battery casing (1) and a top plate (2), characterized in that: A main body assembly (200) is installed between the outer side of the battery casing (1) and the outer side of the top plate (2), and a fixing assembly (300) for fixing the BMS protection board is installed on the top of the top plate (2). The fixing component (300) includes two fixing blocks (301) slidably connected inside the top plate (2). The top of the top plate (2) has two insertion slots (302). The top of the fixing block (301) has a moving slot (303). A vertical plate (304) is slidably connected inside the moving slot (303). A fixing rod (305) is fixed on the opposite side of the two vertical plates (304). A telescopic rod (306) is fixed on the opposite side of the two vertical plates (304). A spring (307) is fixed on the opposite side of the two vertical plates (304).

2. The BMS protection board structure in a parking lithium iron phosphate battery according to claim 1, characterized in that: The main component (200) includes a base plate (201) fixed to the top of the battery casing (1), a cell assembly body (202) fixed inside the base plate (201), a connecting seat (203) fixed to the top of the top plate (2), a protective box (204) slidably connected to the top of the top plate (2), a BMS protection board body (205) fixed inside the protective box (204) by bolts, a first integrated port (206) fixed to the bottom of the protective box (204), and a second integrated port (207) fixed to the top of the top plate (2).

3. The BMS protection board structure in a parking lithium iron phosphate battery according to claim 2, characterized in that: The top of the first integrated port (206) penetrates through the protective box (204) and extends into the interior of the protective box (204) to connect with the BMS protection board body (205).

4. The BMS protection board structure in a parking lithium iron phosphate battery according to claim 2, characterized in that: The tops of the two fixing blocks (301) are fixed to the bottom of the protective box (204), and the fixing blocks (301) are inserted into the insertion slots (302).

5. The BMS protection board structure in a parking lithium iron phosphate battery according to claim 1, characterized in that: The right side of the spring (307) on the left is fixed to the inner right side wall of the left insertion groove (302), and the left side of the spring (307) on the right is fixed to the inner left side wall of the right insertion groove (302).

6. The BMS protection board structure in a parking lithium iron phosphate battery according to claim 1, characterized in that: The end of the telescopic rod (306) away from the vertical plate (304) is fixed to the top plate (2), and the spring (307) is located on the outside of the telescopic rod (306).

7. The BMS protection board structure in a parking lithium iron phosphate battery according to claim 1, characterized in that: The two fixing rods (305) have opposite ends that pass through the fixing block (301), the insertion slot (302) and the top plate (2) in sequence and extend into the interior of the top plate (2) to be inserted into the top plate (2).

8. The BMS protection board structure in a parking lithium iron phosphate battery according to claim 1, characterized in that: The width of the vertical plate (304) is equal to the width of the moving groove (303), and the height of the vertical plate (304) is greater than the height of the moving groove (303).

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