Self-protection high-safety lithium ion battery
By designing the structure of the protective case and baffle in the lithium-ion battery, and using the cooperation of springs and sealing gaskets to form a sealing structure to avoid water entering, the problem of damage to the lithium-ion battery due to water soaking is solved, and a high-safe lithium-ion battery is achieved.
Patent Information
- Application Number
- CN202421131291.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-05-22
AI Technical Summary
Lithium-ion batteries generate heat during use, causing the heat dissipation plate to be soaked in water, which in turn causes damage to the lithium-ion batteries.
A self-protection, high-safe lithium-ion battery is designed, and a protective case and baffle structure is adopted. When the water level rises, the protective case is close to the baffle under the elastic force of the spring and is closely attached to the sealing gasket to form a sealing structure to prevent water from entering. At the same time, the cutting knife will cut the wires and insert the protective case into the inside of the baffle to block the wire connection, further preventing water from entering.
It effectively avoids damage to lithium-ion batteries due to water soaking, ensures the subsequent use of lithium-ion batteries, and improves the safety of the batteries.
Smart Images
Figure CN222637340U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lithium ion batteries, in particular to a self-protecting high-safety lithium ion battery. Background Art
[0002] Lithium-ion battery is a secondary battery (rechargeable battery) that mainly relies on the movement of lithium ions between the positive electrode and the negative electrode to work. During the charge and discharge process, Li+ is intercalated and deintercalated between the two electrodes: when charging, Li+ is deintercalated from the positive electrode and intercalated into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; the opposite is true during discharge.
[0003] When a lithium-ion battery is installed inside a device for use, it will continuously release heat to generate heat. Therefore, a heat sink will be provided on the surface of the shell to ensure that the temperature inside the shell will not be too high. However, when encountering heavy rain or flooding, water will enter the shell through the heat sink and cover the lithium-ion battery, causing damage to the lithium-ion battery. Therefore, a self-protection high-safety lithium-ion battery is proposed to solve the above problem. Utility Model Content
[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, to provide a self-protecting high-safety lithium-ion battery, and to solve the problems of the background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a self-protecting high-safety lithium-ion battery, comprising a fixed shell, a lithium-ion battery is fixedly connected to the interior of the fixed shell, a ventilation plate is fixedly connected to the surface of the fixed shell, a baffle is fixedly connected to the inner wall of the fixed shell, a protective shell is slidably connected to the inner wall of the fixed shell, a fixed block is fixedly connected to the surface of the fixed shell, a baffle is slidably connected to the inner wall of the fixed shell, a sliding rod is slidably connected to the interior of the fixed block, the sliding rod blocks the movement of the baffle rod, a clamping rod is provided on the surface of the fixed block, a floating plate is slidably connected to the interior of the fixed block, and a top rod is fixedly connected to the surface of the floating plate.
[0006] Preferably, a sealing gasket is arranged inside the baffle 1.
[0007] Preferably, the floating plate is made of vinyl acetate copolymer.
[0008] Preferably, a groove is formed on the surface of the blocking rod, and the surface of the sliding rod is slidably connected to the inner wall of the groove.
[0009] Preferably, a spring 1 is fixedly connected to the surface of the baffle 1, and one end of the spring 1 away from the baffle 1 is fixedly connected to the protective shell 1.
[0010] Preferably, a second spring is fixedly connected inside the fixing block, and one end of the second spring away from the fixing block is fixedly connected to the blocking rod.
[0011] Preferably, the surface of the fixed shell is fixedly connected with an electric wire, the electric wire passes through the interior of the fixed shell and is fixedly connected to the lithium-ion battery, the surface of the protective shell one is fixedly connected with a push rod two, the inner wall of the fixed shell is fixedly connected with a baffle two, the inner wall of the fixed shell is slidably connected to the protective shell two, the surface of the protective shell two is fixedly connected with a cutting knife, the surface of the protective shell two is slidably connected with a card block, and the surface of the card block is slidably connected to the interior of the fixed shell.
[0012] Preferably, a spring three is fixedly connected to the surface of the protective shell two, and one end of the spring three away from the protective shell two is fixedly connected to the baffle two.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] (1) When the water level of the self-protecting high-safety lithium-ion battery continues to rise, the protective shell one approaches the baffle one under the elastic force of the spring one, and then the protective shell one is inserted into the interior of the baffle one and tightly fits against the sealing gasket, thereby sealing the ventilation plate, preventing water from entering the interior of the fixed shell from the ventilation plate and covering the lithium-ion battery, thereby preventing the lithium-ion battery from being damaged by water, and thereby preventing the subsequent use of the lithium-ion battery from being affected.
[0015] (2) In the self-protecting high-safety lithium-ion battery, the cutting knife moves to cut the wires, so that the protective shell 2 is inserted into the interior of the baffle 2 to seal the connection between the wires and the fixed shell, thereby preventing water from entering the interior of the fixed shell from the connection between the fixed shell and the wires, further preventing the lithium-ion battery from contacting with water, reducing the possibility of damage to the lithium-ion battery, and ensuring the subsequent use of the lithium-ion battery. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments:
[0017] Figure 1 It is a schematic diagram of the structure of the utility model;
[0018] Figure 2 This is a schematic diagram of the internal structure of the fixed shell of the utility model;
[0019] Figure 3 This is a schematic diagram of the internal structure of the fixed block of the utility model;
[0020] Figure 4 This is a schematic diagram of the surface structure of the protective shell of the utility model;
[0021] Figure 5For this utility model Figure 4 A is a schematic diagram of the enlarged structure of the middle part;
[0022] Figure 6 It is a schematic diagram of the surface structure of the protective shell 2 of the utility model.
[0023] Figure numerals: 1, fixed shell; 2, electric wire; 3, ventilation plate; 4, fixed block; 5, spring one; 6, baffle one; 7, protective shell one; 8, lithium-ion battery; 9, floating plate; 10, push rod one; 11, clamping rod; 12, sliding rod; 13, baffle rod; 14, groove; 15, spring two; 16, push rod two; 17, spring three; 18, protective shell two; 19, baffle two; 20, cutting knife; 21, clamping block. DETAILED DESCRIPTION
[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.
[0025] See also Figure 1-6 The utility model provides a technical solution: a self-protected high-safety lithium-ion battery, comprising a fixed shell 1, a lithium-ion battery 8 is fixedly connected inside the fixed shell 1, a ventilation plate 3 is fixedly connected to the surface of the fixed shell 1, a baffle 6 is fixedly connected to the inner wall of the fixed shell 1, a sealing gasket is arranged inside the baffle 6, a protective shell 7 is slidably connected to the inner wall of the fixed shell 1, a spring 5 is fixedly connected to the surface of the baffle 6, an end of the spring 5 away from the baffle 6 is fixedly connected to the protective shell 7, and when the protective shell 7 is not close to the baffle 6, the spring 5 is in a stretched state, a fixed block 4 is fixedly connected to the surface of the fixed shell 1, and the fixed block The inner wall of 4 is slidably connected with a blocking rod 13, and the blocking rod 13 penetrates into the interior of the fixed shell 1 to block the protective shell 7, the interior of the fixed block 4 is fixedly connected with a spring 2 15, and the end of the spring 2 15 away from the fixed block 4 is fixedly connected to the blocking rod 13, and the spring 2 15 is in a compressed state when the blocking rod 13 blocks the protective shell 7, the interior of the fixed block 4 is slidably connected with a sliding rod 12, and the sliding rod 12 blocks the movement of the blocking rod 13, the surface of the fixed block 4 is provided with a clamping rod 11, the interior of the fixed block 4 is slidably connected with a floating plate 9, and the material of the floating plate 9 is vinyl acetate copolymer, and the surface of the floating plate 9 is fixedly connected with a top rod 10.
[0026] A groove 14 is provided on the surface of the blocking rod 13, and the surface of the sliding rod 12 is slidably connected to the inner wall of the groove 14. The movement of the sliding rod 12 is limited by the setting of the groove 14, thereby preventing the sliding rod 12 from sliding freely inside the fixed block 4 and separating from the blocking rod 13.
[0027] When the water level continues to rise, water enters the interior of the fixed block 4 from the card rod 11, and then the buoyancy of the water drives the floating plate 9 to slide inside the fixed block 4, and the floating plate 9 drives the top rod 10 to move, and the top rod 10 moves to push the sliding rod 12, and then the sliding rod 12 slides out of the interior of the groove 14 and disengages from the blocking rod 13, so that the sliding rod 12 no longer blocks the movement of the blocking rod 13, and then under the elastic force of the spring 2 15, the blocking rod 13 moves toward the interior of the fixed block 4, at this time, the blocking rod 13 no longer blocks the movement of the protective shell 7, and then the protective shell 7 approaches the baffle plate 6 under the elastic force of the spring 15, and then the protective shell 7 is inserted into the interior of the baffle plate 6 and tightly adheres to the sealing gasket, and then the ventilation plate 3 is sealed, avoiding water from entering the interior of the fixed shell 1 from the ventilation plate 3, covering the lithium-ion battery 8, and thus avoiding the lithium-ion battery 8 from being damaged by water, and thus avoiding affecting the subsequent use of the lithium-ion battery 8.
[0028] A wire 2 is fixedly connected to the surface of the fixed shell 1, and the wire 2 passes through the interior of the fixed shell 1 and is fixedly connected to the lithium-ion battery 8. A top rod 2 16 is fixedly connected to the surface of the protective shell 7. A baffle 2 19 is fixedly connected to the inner wall of the fixed shell 1. The inner wall of the fixed shell 1 is slidably connected to the protective shell 2 18. A spring 3 17 is fixedly connected to the surface of the protective shell 2 18. One end of the spring 3 17 away from the protective shell 2 18 is fixedly connected to the baffle 2 19. The spring 3 17 is in a stretched state before the protective shell 2 18 and the baffle 2 19 are not attached. A cutting knife 20 is fixedly connected to the surface of the protective shell 2 18. A block 21 is slidably connected to the surface of the protective shell 2 18, and the surface of the block 21 is slidably connected to the interior of the fixed shell 1.
[0029] When the protective shell 1 7 moves, the protective shell 1 7 drives the push rod 2 16 to move, and then the push rod 2 16 squeezes the block 21, and then the block 21 slides out from the inside of the protective shell 2 18, and no longer blocks the movement of the protective shell 2 18, and then under the elastic force of the spring 3 17, the protective shell 2 18 moves toward the baffle 2 19, and at the same time, the protective shell 2 18 drives the cutting knife 20 to move, and the movement of the cutting knife 20 will cut off the wire 2, so that the protective shell 2 18 is inserted into the inside of the baffle 2 19 to block the connection between the wire 2 and the fixed shell 1, thereby preventing water from entering the inside of the fixed shell 1 from the connection between the fixed shell 1 and the wire 2, further preventing the lithium ion battery 8 from contacting with water, reducing the possibility of damage to the lithium ion battery 8, and ensuring the subsequent use of the lithium ion battery 8.
[0030] Working principle: the buoyancy of water drives the float plate 9 to slide inside the fixed block 4, and the float plate 9 drives the push rod 10 to push the sliding rod 12, so that the sliding rod 12 no longer blocks the movement of the blocking rod 13, and then the blocking rod 13 moves toward the inside of the fixed block 4 under the elastic force of the spring 15. At this time, the blocking rod 13 no longer blocks the movement of the protective shell 7, and then the protective shell 7 approaches the baffle 6 under the elastic force of the spring 5, and then the protective shell 7 is inserted into the inside of the baffle 6 and fits tightly against the sealing gasket, thereby sealing the ventilation plate 3.
[0031] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.
Claims
1. A self-protecting high-safety lithium-ion battery, comprising a fixed shell (1), characterized in that: The interior of the fixed shell (1) is fixedly connected to a lithium-ion battery (8); the surface of the fixed shell (1) is fixedly connected to a ventilation plate (3); the inner wall of the fixed shell (1) is fixedly connected to a baffle plate (6); the inner wall of the fixed shell (1) is slidably connected to a protective shell (7); the surface of the fixed shell (1) is fixedly connected to a fixed block (4); the inner wall of the fixed block (4) is slidably connected to a blocking rod (13), and the blocking rod (13) penetrates into the interior of the fixed shell (1) to block the protective shell (7); the interior of the fixed block (4) is slidably connected to a sliding rod (12); the surface of the fixed block (4) is provided with a clamping rod (11); the interior of the fixed block (4) is slidably connected to a floating plate (9); the surface of the floating plate (9) is fixedly connected to a top rod (10).
2. The self-protected high-safety lithium-ion battery according to claim 1, characterized in that: A sealing gasket is arranged inside the baffle plate 1 (6).
3. The self-protected high-safety lithium-ion battery according to claim 1, characterized in that: The material of the floating plate (9) is vinyl acetate copolymer.
4. The self-protected high-safety lithium-ion battery according to claim 1, characterized in that: A groove (14) is provided on the surface of the blocking rod (13), and the surface of the sliding rod (12) is slidably connected to the inner wall of the groove (14).
5. The self-protected high-safety lithium-ion battery according to claim 1, characterized in that: A spring (5) is fixedly connected to the surface of the baffle plate (6), and one end of the spring (5) away from the baffle plate (6) is fixedly connected to a protective shell (7).
6. The self-protected high-safety lithium-ion battery according to claim 1, characterized in that: A second spring (15) is fixedly connected inside the fixed block (4), and one end of the second spring (15) away from the fixed block (4) is fixedly connected to the blocking rod (13).
7. The self-protected high-safety lithium-ion battery according to claim 1, characterized in that: The surface of the fixed shell (1) is fixedly connected with an electric wire (2), and the electric wire (2) passes through the interior of the fixed shell (1) and is fixedly connected with a lithium-ion battery (8). The surface of the protective shell (7) is fixedly connected with a push rod (16). The inner wall of the fixed shell (1) is fixedly connected with a baffle (19). The inner wall of the fixed shell (1) is slidably connected with a protective shell (18). The surface of the protective shell (18) is fixedly connected with a cutting knife (20). The surface of the protective shell (18) is slidably connected with a block (21), and the surface of the block (21) is slidably connected with the interior of the fixed shell (1).
8. The self-protected high-safety lithium-ion battery according to claim 7, characterized in that: A spring three (17) is fixedly connected to the surface of the second protective shell (18), and one end of the spring three (17) away from the second protective shell (18) is fixedly connected to the second baffle (19).