Lightweight high-strength lithium battery shell structure

Abstract

The utility model discloses a light-weight high-strength lithium battery shell structure, which relates to the technical field of battery protection and comprises a bottom box and a top cover, an extension plate is fixedly arranged on the side surface of the top cover, and the bottom box, the top cover and the extension plate form the shell structure of a lithium battery. The top edge of the extension plate is fixedly arranged at the top of the bottom box through top bolts, and a side socket is formed in the side face of the top cover. According to the utility model, the mounting box is arranged at the bottom of the extension plate, and the anti-falling component is arranged in the mounting box and can be clamped on an electric vehicle plug after the electric vehicle plug is inserted into the lithium battery jack, so that the plug can be prevented from loosening or falling off due to vibration, bumping or accidental pulling in the driving process to cause power interruption; and in addition, the problems of poor contact, electric arc generation or local overheating possibly caused by loosening of the plug, and increase of risks of burning loss and even fire outbreak of the socket can be solved.

Description

Technical Field

[0001] This utility model relates to the field of battery protection technology, and in particular to a lightweight, high-strength lithium battery casing structure. Background Technology

[0002] Lithium battery boxes for electric vehicles are shells used to store and protect lithium battery packs. They are widely used in electric bicycles, electric motorcycles and electric cars. They are usually made of high-strength metal or engineering plastics and have waterproof, dustproof and shockproof properties to ensure the safety and stability of the battery during operation.

[0003] In existing technology, when an electric vehicle draws power, it inserts a plug into a socket on the side of the lithium battery box to establish a circuit. However, the socket on the lithium battery casing lacks an anti-dislodgement structure, which can cause the plug to loosen or fall off during driving due to vibration, bumps, or accidental pulling, resulting in power interruption and sudden loss of power, affecting driving safety. In addition, a loose plug may lead to poor contact, generating electric arcs or localized overheating, increasing the risk of socket burnout or even fire. At the same time, frequent loosening and re-plugging may also accelerate the wear and tear of the socket and plug, shortening their service life and increasing maintenance costs. Summary of the Invention

[0004] The purpose of this utility model is to solve the problem that the existing electric vehicle lithium battery casing socket position lacks an anti-detachment structure, which can cause the plug to loosen or fall off during driving due to vibration, bumps or accidental pulling, resulting in power interruption, sudden loss of power of the electric vehicle, and affecting driving safety. In addition, the loose plug may lead to poor contact, generate electric arc or local overheating, and increase the risk of socket burnout or even fire. Therefore, a lightweight and high-strength lithium battery casing structure is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A lightweight, high-strength lithium battery casing structure includes a bottom box and a top cover. An extension plate is fixedly provided on the side of the top cover. The bottom box, the top cover, and the extension plate together form the casing structure of the lithium battery.

[0007] The top edge of the extension plate is fixed to the top of the bottom box with top bolts. The side of the top cover has a side socket. The bottom of the extension plate is fixed to the mounting box with bottom bolts. The mounting box is equipped with an anti-detachment component to prevent the electric vehicle plug from accidentally detaching from the side socket after it is inserted.

[0008] Optionally, the anti-detachment component includes an anti-detachment fork, a limiting rod, and a vertical rod. The top two ends of the anti-detachment fork extend from the extension plate, and the vertical rod is fixedly installed at the middle position of the bottom of the anti-detachment fork.

[0009] Optionally, the outer wall of the vertical rod is fixedly connected to one end of the vertical spring, and the other end of the vertical spring is fixedly connected to the bottom of the mounting box.

[0010] Optionally, a blocking rod is fixedly provided at the middle position of the anti-disengagement fork side to prevent the anti-disengagement fork from being pushed down unexpectedly by external force.

[0011] Optionally, a limiting rod is movably inserted into the side of the bottom box, and a vertical plate is fixedly provided on the outer wall of the limiting rod. The side of the vertical plate is fixedly connected to one end of a horizontal spring.

[0012] Optionally, the other end of the horizontal spring is fixedly connected to the inside of the bottom box, one end of the limiting rod is movably inserted into the bottom of the blocking rod, and the other end of the limiting rod extends out from the inner cavity of the bottom box.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] 1. This utility model has an installation box at the bottom of the extension plate, and an anti-detachment component is installed inside the installation box. The anti-detachment component can lock the electric vehicle plug into the lithium battery socket after the electric vehicle plug is inserted into the electric vehicle plug, which can prevent the plug from becoming loose or falling off due to vibration, bumps or accidental pulling during driving, causing power interruption, making the electric vehicle suddenly lose power and affecting driving safety. In addition, a loose plug may lead to poor contact, generate electric arc or local overheating, and increase the risk of socket burnout or even fire.

[0015] 2. This utility model has a limiting rod that can be inserted into the top of the side of the bottom box. The limiting rod can be inserted into the side of the anti-detachment component when the anti-detachment component is working, so as to prevent the anti-detachment component from being accidentally pushed and causing the anti-detachment component to fail to be continuously locked to the side of the electric vehicle plug. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the connection structure between the top cover and the anti-detachment component.

[0018] Figure 3 This is a schematic diagram of the anti-detachment component.

[0019] Figure 4 for Figure 3 Another perspective structural diagram.

[0020] In the diagram: 1. Side inlet; 2. Top cover; 21. Top bolt; 3. Extension plate; 4. Bottom box; 5. Mounting box; 51. Bottom bolt; 6. Anti-disengagement fork; 7. Blocking bar; 8. Vertical plate; 9. Horizontal spring; 10. Limiting bar; 11. Vertical spring; 12. Vertical bar. Detailed Implementation

[0021] 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.

[0022] Reference Figures 1-4 A lightweight, high-strength lithium battery casing structure includes a bottom box 4 and a top cover 2. An extension plate 3 is fixedly installed on the side of the top cover 2. The bottom box 4, the top cover 2, and the extension plate 3 together form the casing structure of the lithium battery, and the material is lightweight, high-strength plastic. The top edge of the extension plate 3 is fixed to the top of the bottom box 4 with a top bolt 21. A side insertion port 1 is provided on the side of the top cover 2 for installing the lithium battery socket inside the bottom box 4. The bottom of the top cover 2 still has a cavity for storing the control board of the lithium battery and its connectors.

[0023] The bottom of the extension plate 3 is fixed with a mounting box 5 by bottom bolts 51. The mounting box 5 is equipped with an anti-detachment component. The anti-detachment component prevents the electric vehicle plug from accidentally detaching from the side socket 1 after it is inserted into the side socket 1. The anti-detachment component includes an anti-detachment fork 6, a limiting rod 10, and a vertical rod 12. The top two ends of the anti-detachment fork 6 extend from the extension plate 3. The vertical rod 12 is fixedly installed at the middle position of the bottom of the anti-detachment fork 6. The outer wall of the vertical rod 12 is fixedly connected to one end of the vertical spring 11. The other end of the vertical spring 11 is fixedly connected to the bottom of the mounting box 5. At the same time, the vertical rod 12 is movably inserted into the bottom of the inner cavity of the mounting box 5. When the vertical spring 11 is at its original length, the anti-detachment fork 6 extends out from the top of the extension plate 3.

[0024] A stop bar 7 is fixedly installed in the middle of the side of the anti-spare fork 6. The stop bar 7 prevents the anti-spare fork 6 from accidentally moving downwards due to external force. A limit bar 10 is movably inserted into the side of the bottom box 4. A vertical plate 8 is fixedly installed on the outer wall of the limit bar 10. The side of the vertical plate 8 is fixedly connected to one end of the horizontal spring 9. The other end of the horizontal spring 9 is fixedly connected to the inside of the bottom box 4. One end of the limit bar 10 is movably inserted into the bottom of the stop bar 7, and the other end of the limit bar 10 extends out from the inner cavity of the bottom box 4, allowing the user to operate the limit bar 10 from the outer wall of the bottom box 4. When the horizontal spring 9 is at its original length, one end of the limit bar 10 extends into the bottom of the stop bar 7. At this time, the top of the anti-spare fork 6 is pressed down by external force and will not detach from the side of the electric vehicle plug.

[0025] The specific implementation steps and principles of this utility model are as follows:

[0026] Before inserting the electric vehicle plug into the side socket 1 on the side of the lithium battery casing (top cover 2), first pull the limiting rod 10 horizontally so that one end of the limiting rod 10 disengages from the bottom of the blocking rod 7. At this time, manually press down the anti-disengagement fork 6 so that the anti-disengagement fork 6 is fully inserted into the extension plate 3. Then insert the electric vehicle plug into the side socket 1 on the side of the lithium battery casing (top cover 2), release the anti-disengagement fork 6, and under the reset of the vertical spring 11, the anti-disengagement fork 6 is engaged between the battery plug and the connecting wire at the end of the plug. Finally, release the limiting rod 10, and under the reset of the horizontal spring 9, one end of the limiting rod 10 re-enters the space at the bottom of the blocking rod 7.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A lightweight, high-strength lithium battery casing structure, comprising a bottom box and a top cover, characterized in that, An extension plate is fixedly provided on the side of the top cover, and the bottom box, the top cover, and the extension plate together form the outer shell structure of the lithium battery. The top edge of the extension plate is fixed to the top of the bottom box with top bolts. The side of the top cover has a side socket. The bottom of the extension plate is fixed to the mounting box with bottom bolts. The mounting box is equipped with an anti-detachment component to prevent the electric vehicle plug from accidentally detaching from the side socket after it is inserted.

2. The lightweight, high-strength lithium battery casing structure according to claim 1, characterized in that, The anti-detachment component includes an anti-detachment fork, a limiting rod, and a vertical rod. The top two ends of the anti-detachment fork extend from the extension plate, and the vertical rod is fixedly installed at the middle position of the bottom of the anti-detachment fork.

3. The lightweight, high-strength lithium battery casing structure according to claim 2, characterized in that, The outer wall of the vertical rod is fixedly connected to one end of the vertical spring, and the other end of the vertical spring is fixedly connected to the bottom of the mounting box.

4. The lightweight, high-strength lithium battery casing structure according to claim 2, characterized in that, A blocking rod is fixedly installed at the middle position of the side of the anti-disengagement fork to prevent the anti-disengagement fork from accidentally moving downwards due to external force.

5. The lightweight, high-strength lithium battery casing structure according to claim 4, characterized in that, A limiting rod is movably inserted into the side of the bottom box. A vertical plate is fixedly installed on the outer wall of the limiting rod, and the side of the vertical plate is fixedly connected to one end of a horizontal spring.

6. The lightweight, high-strength lithium battery casing structure according to claim 5, characterized in that, The other end of the horizontal spring is fixedly connected to the inside of the bottom box, one end of the limiting rod is movably inserted into the bottom of the blocking rod, and the other end of the limiting rod extends out from the inner cavity of the bottom box.

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