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CN-224217612-U - Lithium battery safety protection device

CN224217612UCN 224217612 UCN224217612 UCN 224217612UCN-224217612-U

Abstract

The utility model relates to the technical field of lithium battery protection devices and discloses a lithium battery safety protection device, which comprises a box body, wherein the upper surface of the box body is connected with a sealing cover in a sliding manner, an interface is arranged on the upper surface of the sealing cover, the side wall of the box body is fixedly connected with a heat dissipation net, a battery body is arranged in the box body, a protection component is arranged in the battery body, the side wall of the sealing cover is provided with a fixing component, the protection component comprises a jacket, a partition plate is fixedly connected in the box body, a first fixing sleeve is fixedly connected in the box body, and a fixing hole is formed in the first fixing sleeve. According to the utility model, the battery body is inserted into the fixing hole to realize positioning, the spring is used for generating elasticity to the direction of the battery body to the jacket for a while, so that the jacket is attached to the side wall of the battery body, and the impact force is absorbed through elastic deformation of the spring I and buffering of the jacket, so that the battery is prevented from being damaged due to shaking and collision, and the protection effect on the battery is provided through the structure.

Inventors

  • JIN MIAOFENG
  • XU LINJIE
  • Gu Wangqiang

Assignees

  • 浙江中锂电科技有限公司

Dates

Publication Date
20260508
Application Date
20250430

Claims (8)

  1. 1. The lithium battery safety protection device comprises a box body (1) and is characterized in that the upper surface of the box body (1) is connected with a sealing cover (2) in a sliding manner, an interface (13) is arranged on the upper surface of the sealing cover (2), a heat dissipation net (3) is fixedly connected to the side wall of the box body (1), a battery body (4) is arranged in the box body (1), a protection component is arranged in the battery body (4), and a fixing component is arranged on the side wall of the sealing cover (2); The protection assembly comprises a jacket (10), a partition plate (5) is fixedly connected inside the box body (1), a first fixing sleeve (6) is fixedly connected inside the box body (1), a first fixing hole (7) is formed in the first fixing sleeve (6), a second fixing sleeve (8) is fixedly connected to the inner wall of the box body (1) and the side wall of the partition plate (5), a telescopic rod (9) is fixedly connected inside the second fixing sleeve (8) in a sliding manner, the jacket (10) is fixedly connected to one end of the telescopic rod (9), a fixing seat (11) is fixedly connected to the inner wall of the box body (1) and the side wall of the partition plate (5), a first spring (12) is fixedly connected to the side wall of the fixing seat (11), and one end of the first spring (12) is fixedly connected to the side wall of the jacket (10).
  2. 2. A lithium battery safety protection device according to claim 1, wherein the fixing component comprises a plug rod (15), and the side wall of the plug rod (15) is connected inside the sealing cover (2) in a sliding manner.
  3. 3. The lithium battery safety protection device according to claim 1, wherein the side wall of the battery body (4) is slidably connected inside the fixing hole (7), and the side wall of the jacket (10) is attached to the side wall of the battery body (4).
  4. 4. The lithium battery safety protection device according to claim 2, wherein the side wall of the sealing cover (2) is fixedly connected with a fixed shell (14), and the side wall of the inserting rod (15) is slidably connected inside the fixed shell (14).
  5. 5. The lithium battery safety protection device according to claim 4, wherein the side wall of the inserting rod (15) is fixedly connected with a fixing ring (16), and the side wall of the fixing ring (16) is slidably connected inside the fixing shell (14).
  6. 6. The lithium battery safety protection device according to claim 5, wherein a second spring (17) is sleeved on the side wall of the inserting rod (15), one end of the second spring (17) is fixedly connected inside the fixed shell (14), and the other end of the second spring (17) is fixedly connected on the side wall of the fixed ring (16).
  7. 7. The lithium battery safety protection device according to claim 2, wherein the inside of the case (1) is provided with a mounting hole (20), and one end of the inserting rod (15) is slidably connected inside the mounting hole (20).
  8. 8. The lithium battery safety protection device according to claim 2, wherein the other end of the inserting rod (15) is rotatably connected with a rotating handle (18), and a groove (19) for holding is formed in the side wall of the rotating handle (18).

Description

Lithium battery safety protection device Technical Field The utility model relates to the technical field of lithium battery protection devices, in particular to a lithium battery safety protection device. Background The lithium battery is used as an important energy storage device and is widely applied to various fields such as electronic equipment, new energy automobiles, energy storage power stations and the like. With the continuous expansion of application scenes and the increasing use demands of lithium batteries, the safety problem of the lithium batteries is becoming more and more concerned. In the process of using, transporting and storing the lithium battery, the lithium battery can be impacted and vibrated by various external forces, and the battery can be damaged by the conditions, so that safety accidents are caused, and therefore, the research and development of the effective lithium battery safety protection device has important significance. At present, most of common lithium battery protection devices adopt a rigid fixing structure, a lithium battery is fixed in a protection box through a simple clamping groove or a bracket, the battery is limited to a specific position in a mode of mainly relying on mechanical clamping, and the technical principle is that the fixing is realized through the mode of interference fit or buckle connection and the like by utilizing the adaptation of the clamping groove or the bracket and the appearance of the battery. When the device is impacted and vibrated by external force, the lithium battery can directly bear impact force due to the lack of an effective buffer mechanism, so that the battery shakes and collides at a fixed position, the damage of a battery shell and poor electrode contact are easily caused, the damage of the internal structure of the battery is easily caused, such as the falling-off of an electrode material, the rupture of a diaphragm and the like, the safety and the service life of the lithium battery are greatly influenced, and the lithium battery safety protection device is provided for solving the problems. Disclosure of utility model In order to make up for the defects, the utility model provides a lithium battery safety protection device, which aims to solve the problems that in the prior art, when the device is impacted and vibrated by external force, the lithium battery can directly bear impact force, so that the battery shakes and collides at a fixed position, the battery shell is easy to damage, the electrode contact is poor, and the safety and the service life of the lithium battery are influenced. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The lithium battery safety protection device comprises a box body, wherein the upper surface of the box body is connected with a sealing cover in a sliding manner, an interface is arranged on the upper surface of the sealing cover, a radiating net is fixedly connected to the side wall of the box body, a battery body is arranged in the box body, a protection component is arranged in the battery body, and a fixing component is arranged on the side wall of the sealing cover; The protection assembly comprises a jacket, a partition plate is fixedly connected inside the box body, a first fixing sleeve is fixedly connected inside the box body, a fixing hole is formed in the first fixing sleeve, a second fixing sleeve is fixedly connected to the inner wall of the box body and the side wall of the partition plate, a telescopic rod is fixedly connected to the inner wall of the second fixing sleeve in a sliding mode, the jacket is fixedly connected to one end of the telescopic rod, a fixing seat is fixedly connected to the inner wall of the box body and the side wall of the partition plate, a first spring is fixedly connected to the side wall of the fixing seat, and one end of the first spring is fixedly connected to the side wall of the jacket. As a further description of the above technical solution: the fixing component comprises a plunger, and the side wall of the plunger is slidably connected inside the sealing cover. As a further description of the above technical solution: The side wall of the battery body is slidably connected inside the fixing hole, and the side wall of the jacket is attached to the side wall of the battery body. As a further description of the above technical solution: the sealing cover side wall is fixedly connected with a fixing shell, and the inserting rod side wall is in sliding connection inside the fixing shell. As a further description of the above technical solution: The fixed ring is fixedly connected to the side wall of the inserted link, and the side wall of the fixed ring is slidably connected to the inside of the fixed shell. As a further description of the above technical solution: The side wall of the inserted link is sleeved with a second spring, one end of the second spring is fixedly connected inside