Bottom protection plate assembly of lithium battery pack

Abstract

The utility model discloses a lithium battery pack bottom guard plate assembly, which relates to the technical field of lithium battery protection and comprises a pack bottom guard plate body, a reinforcing strip is clamped in the pack bottom guard plate body, U-shaped blocks are symmetrically sleeved on the outer side of the reinforcing strip, the top ends of the U-shaped blocks are connected with limiting plates, and the limiting plates are of L-shaped structures. According to the bottom wrapping protection plate, the reinforcing strips and the limiting plates are arranged and matched with each other, so that battery packs of different specifications placed in the bottom wrapping protection plate body can be limited, the situation that the battery packs are stressed to shake in the placing process is effectively prevented, and therefore the applicability of the bottom wrapping protection plate in the using process can be effectively guaranteed; according to the bottom covering protection plate, the buffer blocks and the reinforcing strips are arranged, the reinforcing strips of the X-shaped structure are matched with the buffer blocks, the overall structural strength of the bottom covering protection plate body can be effectively improved, and the bottom covering protection plate body can be effectively prevented from being easily deformed due to stress in the using process.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery protection, in particular to a lithium battery pack bottom guard plate assembly. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as the negative electrode material and a non-aqueous electrolyte solution. With the development of science and technology, lithium batteries have now become a mainstream product and are widely used in the transportation field.

[0003] At present, in order to increase the total voltage of lithium batteries and improve the energy storage efficiency, users will connect multiple groups of lithium batteries in series. In order to ensure the safety of the lithium battery pack during use, a protective shell is set on the outside of the battery pack. The protective shell is mainly composed of a bottom guard plate and an upper cover. The function of the bottom guard plate is to wrap the bottom of the battery pack as a whole for protection. Since the existing bottom guard plate structure is relatively simple, in actual use, it can only meet the protection needs of battery packs of the same specification. Therefore, when the protected battery specification is smaller, the battery pack is prone to shaking on the bottom guard plate, which will cause the existing bottom guard plate to have great limitations when used. To this end, we propose a lithium battery bottom guard plate assembly to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a lithium battery pack bottom guard plate assembly.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A lithium battery bottom guard plate assembly comprises a bottom guard plate body, a reinforcing strip is engaged inside the bottom guard plate body, and a U-shaped block is symmetrically sleeved on the outside of the reinforcing strip, the top ends of the U-shaped blocks are connected to a limiting plate, and the limiting plate is arranged in an L-shaped structure, insertion rods are vertically inserted inside the U-shaped blocks, and the top ends of the insertion rods are connected to connecting plates, limiting grooves matching the insertion rods are equidistantly provided inside the reinforcing strip, and a foot pad is provided at the bottom end of the bottom guard plate body.

[0007] Preferably, a guide block is symmetrically connected to the inner side of the U-shaped block, and a guide groove adapted to the guide block is provided on the side of the reinforcement strip.

[0008] Preferably, a sliding block is connected to the inner side of the connecting plate, and a slideway adapted to the sliding block is provided inside the limiting plate.

[0009] Preferably, a spring is vertically connected to the inner wall of the slideway, and the bottom end of the spring is fixedly connected to the sliding block.

[0010] Preferably, anti-skid strips are glued equidistantly on one side of the limiting plates that are close to each other, and anti-skid particles are evenly distributed on the outer surface of the anti-skid strips.

[0011] Preferably, buffer blocks are glued at the corners of the reinforcing strips, and the sides of the buffer blocks abut against the inner walls of the bottom guard plate body. The buffer blocks are connected to each other through a mounting plate, and the interior of the mounting plate is fixedly connected to the bottom guard plate body through bolts.

[0012] Preferably, a positioning strip is connected to a side of the buffer block away from the mounting plate, and a positioning groove matched with the positioning strip is formed on the inner wall of the bottom cover guard plate body.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The device is provided with a reinforcing bar and a limiting plate. When in use, the reinforcing bar and the limiting plate cooperate with each other to limit the battery packs of different specifications placed inside the bottom guard plate body of the bag, so as to effectively prevent the battery packs from shaking due to force during placement, thereby effectively ensuring the applicability of the device during use.

[0015] 2. The device is provided with a buffer block and a reinforcement strip. During use, the reinforcement strip arranged in an X-shaped structure and the buffer block can effectively improve the overall structural strength of the bottom guard plate body, and can effectively prevent the bottom guard plate body from being easily deformed by force during use. The buffer block made of rubber material can buffer part of the external force on the bottom guard plate body, so as to further protect the bottom guard plate body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a lithium battery pack bottom guard plate assembly proposed by the utility model;

[0017] Figure 2 for Figure 1 A three-dimensional schematic diagram of the buffer block and the mounting plate structure;

[0018] Figure 3 for Figure 1 A three-dimensional cross-sectional diagram of the U-shaped block and guide block structure;

[0019] Figure 4 for Figure 1 Schematic diagram of the three-dimensional cross-section of the bottom guard plate body and the reinforcement strip structure.

[0020] In the figure: 1. Bottom guard plate body; 2. Reinforcement strip; 3. U-shaped block; 4. Limit plate; 5. Insertion rod; 6. Connecting plate; 7. Sliding block; 8. Spring; 9. Guide block; 10. Guide groove; 11. Anti-slip strip; 12. Buffer block; 13. Mounting plate; 14. Positioning strip; 15. Foot pad. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-4 The U-shaped blocks 3 are connected to the limiting plates 4 at the tops of the blocks 3, and the limiting plates 4 are arranged in an L-shaped structure. The limiting plates 4 arranged in the L-shaped structure can improve the limiting effect of the battery pack. The U-shaped blocks 3 are vertically inserted with insertion rods 5, and the tops of the insertion rods 5 are connected with connecting plates 6. The reinforcing strips 2 are equidistantly provided with limiting grooves adapted to the insertion rods 5. By setting a plurality of groups of limiting grooves and the insertion rods 5, the positions of the four groups of limiting plates 4 can be adjusted, thereby achieving the limiting work of battery packs of different specifications. The bottom end of the bottom guard plate body 1 is provided with a foot pad 15. By setting the foot pad 15, the stability of the bottom guard plate body 1 when placed can be effectively guaranteed.

[0023] Further, see Figure 2 and Figure 3 It can be seen that the inner side of the U-shaped block 3 is symmetrically connected with a guide block 9, and the side of the reinforcing strip 2 is provided with a guide groove 10 adapted to the guide block 9. When in use, the stability of the U-shaped block 3 during the sliding process on the outer side of the reinforcing strip 2 can be effectively guaranteed through the mutual cooperation between the guide block 9 and the guide groove 10.

[0024] Further, see Figure 3 It can be known that a sliding block 7 is connected to the inner side of the connecting plate 6, and a slideway adapted to the sliding block 7 is provided inside the limiting plate 4. When in use, the sliding block 7 and the slideway cooperate with each other to achieve a sliding connection between the connecting plate 6 and the limiting plate 4, and the linear insertion of the insertion rod 5 can be ensured.

[0025] Further, see Figure 3 It can be seen that the inner wall of the slide is vertically connected with a spring 8, and the bottom end of the spring 8 is fixedly connected to the sliding block 7. When in use, through the setting of the spring 8, the staff can stop pulling the connecting plate 6 and then automatically reset it, thereby effectively improving the convenience of using the device.

[0026] Further, see Figure 3 It can be known that the anti-slip strips 11 are equidistantly glued on the side where the limit plates 4 are close to each other, and the anti-slip particles are evenly distributed on the outer surface of the anti-slip strips 11. When in use, the anti-slip strips 11 and the anti-slip particles cooperate with each other to effectively prevent the periphery of the battery pack from directly and rigidly contacting the limit plates 4, thereby achieving protection of the battery pack.

[0027] Further, see Figure 1 and Figure 2 It can be known that buffer blocks 12 are glued at the edge and corner positions of the reinforcing strip 2, and the sides of the buffer blocks 12 are abutted against the inner walls of the bottom guard plate body 1. The buffer blocks 12 are connected to each other through a mounting plate 13, and the interior of the mounting plate 13 is fixedly connected to the bottom guard plate body 1 by bolts. The buffer blocks 12 are made of rubber. When the bottom guard plate body 1 is subjected to external force, the external force is able to act on the buffer blocks 12. The elastic characteristics of the buffer blocks 12 can be used to weaken the external force, thereby protecting the bottom guard plate body 1. Through the cooperation of the mounting plate 13 and the bolts, the staff can remove the reinforcing strip 2 from the interior of the bottom guard plate body 1, so that the staff can clean and maintain the interior of the bottom guard plate body 1.

[0028] Further, see Figure 2 and Figure 4 It can be known that a positioning strip 14 is connected to the side of the buffer block 12 away from the mounting plate 13, and a positioning groove matched with the positioning strip 14 is provided on the inner wall of the bottom guard plate body 1. When in use, the positioning strip 14 and the positioning groove cooperate with each other. Therefore, during the process of installing the reinforcement strip 2 into the bottom guard plate body 1, the positioning strip 14 connected to the side of the buffer block 12 can be first inserted into the positioning groove to achieve auxiliary positioning of the reinforcement strip 2 for subsequent installation work.

[0029] Working principle: When the present invention is in use, the staff can first pull up the four groups of connecting plates 6 in sequence according to the specifications of the battery pack, so that they can drive the insertion rod 5 to be pulled out from the inside of the U-shaped block 3 to release the restriction on the U-shaped block 3, that is, the U-shaped block 3 can slide along the outer surface of the reinforcing strip 2 when subjected to force, so as to adjust the positions of the four groups of limiting plates 4, and then the staff can install the battery pack that needs to be protected inside the bottom guard plate body 1, and the side of the battery pack can be in contact with the limiting plate 4 to achieve the limiting work of the battery pack, and then the staff can cover the top of the bottom guard plate body 1 with the upper cover to achieve comprehensive protection of the battery pack, and then the staff can install the bottom guard plate body 1 at a suitable position inside the vehicle body for use, and when the bottom guard plate body 1 is in use, the X-shaped reinforcing strip 2 can effectively improve the overall structural strength of the device, thereby effectively preventing the bottom guard plate body 1 from being easily deformed during use. The above is the entire working principle of the present invention.

[0030] In the present invention, the installation method, connection method or setting method of all the components mentioned above are common mechanical methods, and the specific structures, models and coefficient indicators of all its components are its own technology. As long as it can achieve its beneficial effects, it can be implemented, so it will not be elaborated.

[0031] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

[0032] In the present utility model, unless otherwise stated, the directional words contained in the terms such as "up, down, left, right, front, back, inside, outside, vertical, horizontal" only represent the orientation of the term in normal use, or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, number series nouns such as "first", "second" and "third" do not represent specific quantities and orders, but are merely used to distinguish names. Moreover, the terms "include", "comprise" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A lithium battery bottom guard plate assembly, comprising a bottom guard plate body (1), characterized in that: A reinforcing strip (2) is engaged inside the bottom cover guard plate body (1), and a U-shaped block (3) is symmetrically sleeved on the outer side of the reinforcing strip (2), the top ends of the U-shaped blocks (3) are connected to a limiting plate (4), and the limiting plate (4) is arranged in an L-shaped structure, and insertion rods (5) are vertically inserted inside the U-shaped blocks (3), and the top ends of the insertion rods (5) are connected to connecting plates (6), and limiting grooves matching the insertion rods (5) are equidistantly provided inside the reinforcing strip (2), and a foot pad (15) is provided at the bottom end of the bottom cover guard plate body (1).

2. A lithium battery pack bottom guard plate assembly according to claim 1, characterized in that: A guide block (9) is symmetrically connected to the inner side of the U-shaped block (3), and a guide groove (10) adapted to the guide block (9) is provided on the side of the reinforcement strip (2).

3. A lithium battery pack bottom guard plate assembly according to claim 1, characterized in that: The inner side of the connecting plate (6) is connected to a sliding block (7), and the interior of the limiting plate (4) is provided with a slideway adapted to the sliding block (7).

4. A lithium battery pack bottom guard plate assembly according to claim 3, characterized in that: A spring (8) is vertically connected to the inner wall of the slideway, and the bottom end of the spring (8) is fixedly connected to the sliding block (7).

5. The lithium battery pack bottom guard plate assembly according to claim 1, characterized in that: The side of the limit plates (4) close to each other is glued with anti-skid strips (11) at equal distances, and the outer surface of the anti-skid strips (11) is evenly distributed with anti-skid particles.

6. A lithium battery pack bottom guard plate assembly according to claim 1, characterized in that: Buffer blocks (12) are glued to the corners of the reinforcing strip (2), and the sides of the buffer blocks (12) are in contact with the inner walls of the bottom cover guard plate body (1). The buffer blocks (12) are connected to each other via a mounting plate (13), and the interior of the mounting plate (13) is fixedly connected to the bottom cover guard plate body (1) via bolts.

7. A lithium battery pack bottom guard plate assembly according to claim 6, characterized in that: A positioning strip (14) is connected to the side of the buffer block (12) away from the mounting plate (13), and a positioning groove matching the positioning strip (14) is provided on the inner wall of the bottom cover guard plate body (1).

Images