Explosion-proof type fire extinguishing device special for lithium battery

Abstract

The utility model discloses a special fire extinguishing device for explosion-proof type lithium battery, including explosion-proof shell, fit the side plate of explosion-proof shell right end, equidistantly set up the dust screen of explosion-proof shell and side plate middle, installation mechanism, installation mechanism is provided the upper end of side plate, and the installation mechanism is used for connecting the side plate and explosion-proof shell, the dust screen is equipped with the dust screen of explosion-proof shell right end, the installation mechanism is equipped with the dust screen of explosion-proof shell right end, and the installation mechanism is equipped with the dust screen of explosion-proof shell right end of explosion-proof shell right end. And the mounting mechanism drives the side plate and the explosion-proof shell to form a dismounting structure, the left fixing clamping plate is clamped at the left end of the lithium battery, and the middle of the left fixing clamping plate is fixedly connected with a movable column. According to the explosion-proof type fire extinguishing device special for the lithium battery, a dry powder fire extinguishing agent is contained in a thin film, the corresponding fire extinguishing effect can be achieved when a fire breaks out, a right fixing clamping plate and a left fixing clamping plate are combined, the lithium battery is conveniently clamped and fixed, and the stability of the lithium battery is improved; and the lithium battery is convenient to disassemble, maintain and replace.

Description

Technical Field

[0001] The utility model relates to the technical field related to lithium battery fire extinguishing, in particular to a special explosion-proof lithium battery fire extinguishing device. Background Art

[0002] Lithium batteries refer to batteries containing lithium in the electrochemical system, including lithium metal, lithium alloys, lithium ions, and lithium polymers. Lithium batteries have many advantages such as environmental protection and long cycle life, and are widely used. For example, lithium batteries are found in electronic products such as automobiles and mobile phones.

[0003] Referring to the Chinese patent authorization announcement number CN206849970U, the authorization announcement date is 2018.01.05, which discloses an explosion-proof lithium battery, including a shell, a battery core and a positive current collecting conductor, wherein the battery core is arranged inside the shell, and an explosion-proof layer is arranged outside the battery core, and an insulating layer is arranged through the explosion-proof layer, the positive current collecting conductor is arranged inside the battery core, and the end of the positive current collecting conductor is arranged on the top of the shell, and the shell is provided with a pressure relief pipe corresponding to the explosion-proof layer, and the end of the pressure relief pipe is arranged on the top of the shell and corresponding to the side of the positive current collecting conductor. The explosion-proof lithium battery has a simple structure and high safety, effectively reduces the probability of lithium battery explosion, and effectively reduces the loss caused by the explosion when the lithium battery explodes;

[0004] However, the prior art has the problem that, due to the relatively active performance of lithium batteries, no protective measures are provided in the event of a collision, and when an explosion occurs, the lithium batteries will splash outwards and cause harm to personnel, and it is inconvenient to disassemble, maintain and replace the lithium batteries. For example, the comparative patents listed above have this problem;

[0005] For this reason, we propose a special fire extinguishing device for explosion-proof lithium batteries to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide an explosion-proof fire extinguishing device for lithium batteries, so as to solve the problems in the prior art proposed in the above background technology that due to the relatively active performance of lithium batteries, no protective measures are set in the event of a collision, explosions will splash outwards and cause harm to personnel, and it is inconvenient to disassemble, maintain and replace the lithium batteries.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fire extinguishing device for explosion-proof lithium batteries, comprising an explosion-proof shell, a side plate fitted on the right end of the explosion-proof shell, and a dustproof net arranged at equal intervals in the middle of the explosion-proof shell and the side plate;

[0008] Wherein, a film is arranged on the top of the explosion-proof shell, and a dry powder fire extinguishing agent is wrapped inside the film;

[0009] Also includes:

[0010] An installation mechanism, which is arranged at the upper end of the side plate, and is used to connect the side plate and the explosion-proof shell, and the installation mechanism drives the side plate and the explosion-proof shell to form a disassembly structure;

[0011] A left fixed clamping plate, wherein the left fixed clamping plate is clamped at the left end of the lithium battery, and a movable column is fixedly connected to the middle of the left fixed clamping plate, and the movable column drives the left fixed clamping plate to form a telescopic structure at the upper end of the support plate;

[0012] Wherein, the left fixing clamp plate is combined with the right fixing clamp plate to clamp and fix the lithium battery.

[0013] Preferably, the lower end of the side plate is fixedly connected to a bottom plate, and the bottom plate is used to support the lithium battery, and a ball is rotatably mounted on the left side of the bottom plate, and the ball rolls on the bottom of the explosion-proof shell.

[0014] Preferably, the mounting mechanism comprises a movable rod rotatably connected to the upper end of the side plate, a connecting column fixedly connected to the left end of the movable rod, a protruding rod for limiting and a fixing block fixedly connected to the inner wall of the upper right end of the explosion-proof shell.

[0015] Preferably, a torsion spring is provided at the connection between the movable rod and the side plate, and the rotation angle range between the movable rod and the side plate is 0-90°, and a right fixed splint is fixedly connected to the middle of the side plate.

[0016] Preferably, the connecting column is inserted in the middle of the fixing block, and the front and rear ends of the connecting column are fixedly connected with convex rods, and the convex rods are fitted on the left side of the fixing block.

[0017] Preferably, the upper left end of the bottom plate is fixedly connected to a support plate, a spring is provided inside the support plate, and a positioning block is fixedly connected to the movable end of the spring.

[0018] Preferably, a sliding structure is formed between the positioning block and the support plate, and pull rods are fixedly connected to both the front and rear sides of the positioning block, and the pull rods are connected to the support plate by a slot.

[0019] Preferably, the upper end of the positioning block is snap-connected to the fixing groove at the corresponding position, and the fixing grooves are arranged at equal intervals at the lower end of the movable column.

[0020] Compared with the prior art, the utility model has the following beneficial effects: the explosion-proof lithium battery fire extinguishing device can play a corresponding fire extinguishing role when a fire occurs by containing dry powder fire extinguishing agent inside the film, and is convenient for clamping and fixing the lithium battery and improving the stability of the lithium battery by combining the setting of the right fixed clamping plate and the left fixed clamping plate, and is convenient for disassembly, maintenance and replacement of the lithium battery by combining the setting of the installation mechanism;

[0021] 1. It is equipped with an explosion-proof shell, a bottom plate and a film. The lithium battery is placed on the bottom plate. The explosion-proof shell and the side plate cover are arranged on the outside of the lithium battery, which can play a good role in protecting the lithium battery. The dry powder fire extinguishing agent is arranged inside the film, which can play a corresponding fire extinguishing role in case of fire;

[0022] 2. An installation mechanism is provided, which includes a movable rod, a connecting column, a convex rod and a fixed block. The installation mechanism is arranged to facilitate positioning between the side plate and the explosion-proof shell, and to facilitate disassembly, maintenance and replacement of the lithium battery;

[0023] 3. A right fixed splint and a left fixed splint are provided. The left fixed splint is driven to extend and retract at the upper end of the support plate by a movable column. Combined with the setting of the left fixed splint and the right fixed splint, the lithium battery can be stably clamped and fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the front view cutaway structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the front view structure of the explosion-proof shell, side panels and bottom panel of the utility model;

[0026] Figure 3 This is a schematic diagram of the overall structure of the installation mechanism of the utility model;

[0027] Figure 4 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0028] Figure 5 It is a front view structural diagram of the connection between the support plate, the movable column and the left fixed splint of the utility model.

[0029] In the figure: 1. explosion-proof shell; 2. side panel; 3. bottom plate; 4. ball bearing; 5. dust screen; 6. right fixed splint; 7. mounting mechanism; 8. movable rod; 9. connecting column; 10. protruding rod; 11. fixed block; 12. supporting plate; 13. movable column; 14. left fixed splint; 15. spring; 16. positioning block; 17. pull rod; 18. fixing groove; 19. film. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] See also Figure 1-5 The utility model provides a technical solution: a special explosion-proof lithium battery fire extinguishing device, including an explosion-proof shell 1, a side plate 2, a bottom plate 3, a ball 4, a dust screen 5, a right fixed splint 6, a mounting mechanism 7, a movable rod 8, a connecting column 9, a convex rod 10, a fixed block 11, a support plate 12, a movable column 13, a left fixed splint 14, a spring 15, a positioning block 16, a pull rod 17, a fixed groove 18 and a film 19.

[0032] When using the explosion-proof lithium battery fire extinguishing device, the right end of the explosion-proof shell 1 is provided with a side plate 2, and the lower end of the side plate 2 is fixedly connected to the bottom plate 3. First, the lithium battery is placed on the bottom plate 3, and the right end of the lithium battery is engaged with the right fixed clamping plate 6. Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the pull rod 17 is then pulled downward, and the pull rod 17 drives the positioning block 16 to slide downward, so that the positioning block 16 squeezes the spring 15, and the spring 15 is elastically deformed, and the upper end of the positioning block 16 is separated from the fixing groove 18, thereby releasing the limit between the support plate 12 and the movable column 13, and then the movable column 13 is pulled, and the movable column 13 slides on the upper end of the support plate 12, and the left fixed clamping plate 14 is driven by the movable column 13 to extend and retract on the upper end of the support plate 12, so that the left fixed clamping plate 14 clamps and fixes the lithium battery, and then the pull rod 17 is released. At this time, the spring 15 restores its elastic deformation, driving the positioning block 16 to slide upward, and the fixing grooves 18 are arranged at equal intervals at the lower end of the movable column 13, and the positioning block 16 is upwardly engaged in the fixing grooves 18 at the corresponding position, thereby facilitating the limiting of the movable column 13 and the support plate 12, and the lithium battery can be clamped and fixed by the right fixing clamp plate 6 and the left fixing clamp plate 14, and then the left fixing clamp plate 14 and the lithium battery and the right fixing clamp plate 6 and the lithium battery are fixed by bolts, so as to facilitate the fixed installation of the lithium battery on the bottom plate 3 and improve the stability of the lithium battery;

[0033] After the lithium battery is fixed, the side plate 2 is pulled to the left, and the side plate 2 drives the bottom plate 3 to move into the inside of the explosion-proof shell 1, and the bottom plate 3 drives the ball 4 to roll at the bottom of the explosion-proof shell 1, and the lithium battery is installed in the inside of the explosion-proof shell 1. Figure 1 and Figure 3 As shown, the mounting mechanism 7 is arranged at the upper end of the side plate 2, and the mounting mechanism 7 includes a movable rod 8 rotatably connected to the upper end of the side plate 2, a connecting column 9 fixedly connected to the left end of the movable rod 8, a convex rod 10 for limiting, and a fixed block 11 fixedly connected to the inner wall of the upper right end of the explosion-proof shell 1. The movable rod 8 is rotated to 90°, and the movable rod 8 drives the connecting column 9 to rotate. At this time, the torsion spring at the connection between the movable rod 8 and the side plate 2 undergoes elastic deformation;

[0034] The side plate 2 drives the movable rod 8 to move to the left, so that the movable rod 8 drives the connecting column 9 to be inserted into the middle of the fixed block 11, and the connecting column 9 drives the convex rod 10 to be inserted into the fixed block 11. When the side plate 2 is fitted at the right end of the explosion-proof shell 1, the movable rod 8 is released. At this time, the torsion spring restores its elastic deformation, driving the movable rod 8 to rotate at the upper end of the side plate 2. The movable rod 8 drives the connecting column 9 to rotate, so that the connecting column 9 drives the convex rod 10 to fit the front and rear ends of the left side of the fixed block 11 respectively, thereby facilitating the side plate 2 to be fitted at the front and rear ends of the left side of the fixed block 11. The plate 2 is fixed to the explosion-proof shell 1, and a dust-proof net 5 is evenly spaced between the side plate 2 and the left side of the explosion-proof shell 1, which can play a certain dust-proof effect during ventilation and heat dissipation, and is highly practical. The explosion-proof shell 1 and the side plate 2 are covered on the outside of the lithium battery, and a film 19 is provided on the top of the explosion-proof shell 1. A dry powder fire extinguishing agent is provided inside the film 19. When the lithium battery catches fire, the flame burns the film 19, and the dry powder fire extinguishing agent inside the film 19 seeps out to play a corresponding fire extinguishing role.

[0035] In addition, the lithium battery can be disassembled and replaced by reversing the above operation, which is very convenient to use.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fire extinguishing device for explosion-proof lithium batteries, comprising an explosion-proof shell (1), a side plate (2) arranged at the right end of the explosion-proof shell (1), and a dustproof net (5) arranged at equal intervals in the middle of the explosion-proof shell (1) and the side plate (2); in, A film (19) is provided on the top of the explosion-proof shell (1), and a dry powder fire extinguishing agent is wrapped inside the film (19); It is characterized by further comprising: An installation mechanism (7), wherein the installation mechanism (7) is arranged at the upper end of the side plate (2), and the installation mechanism (7) is used to connect the side plate (2) and the explosion-proof shell (1), and the installation mechanism (7) drives the side plate (2) and the explosion-proof shell (1) to form a disassembly structure; A left fixed clamping plate (14), wherein the left fixed clamping plate (14) is clamped on the left end of the lithium battery, and a movable column (13) is fixedly connected to the middle of the left fixed clamping plate (14), and the movable column (13) drives the left fixed clamping plate (14) to form a telescopic structure at the upper end of the support plate (12); The left fixing clamp (14) is combined with the right fixing clamp (6) to clamp and fix the lithium battery.

2. The explosion-proof lithium battery fire extinguishing device according to claim 1, characterized in that: The lower end of the side plate (2) is fixedly connected to a bottom plate (3), and the bottom plate (3) is used to support the lithium battery. A ball (4) is rotatably mounted on the left side of the bottom plate (3), and the ball (4) rolls on the bottom of the explosion-proof shell (1).

3. The explosion-proof lithium battery fire extinguishing device according to claim 1, characterized in that: The mounting mechanism (7) comprises a movable rod (8) rotatably connected to the upper end of the side plate (2), a connecting column (9) fixedly connected to the left end of the movable rod (8), a protruding rod (10) for limiting, and a fixing block (11) fixedly connected to the inner wall of the upper right end of the explosion-proof shell (1).

4. The explosion-proof lithium battery fire extinguishing device according to claim 3, characterized in that: A torsion spring is provided at the connection between the movable rod (8) and the side plate (2), and the rotation angle range between the movable rod (8) and the side plate (2) is 0-90°, and the middle part of the side plate (2) is fixedly connected with a right fixed clamping plate (6).

5. The explosion-proof lithium battery fire extinguishing device according to claim 4, characterized in that: The connecting column (9) is inserted into the middle of the fixing block (11), and the front and rear ends of the connecting column (9) are fixedly connected with convex rods (10), and the convex rods (10) are arranged in a close fit on the left side of the fixing block (11).

6. The explosion-proof lithium battery fire extinguishing device according to claim 2, characterized in that: The upper left end of the bottom plate (3) is fixedly connected to a support plate (12), a spring (15) is arranged inside the support plate (12), and a positioning block (16) is fixedly connected to the movable end of the spring (15).

7. The explosion-proof lithium battery fire extinguishing device according to claim 6, characterized in that: A sliding structure is formed between the positioning block (16) and the support plate (12), and the front and rear sides of the positioning block (16) are fixedly connected with a pull rod (17), and the pull rod (17) and the support plate (12) are connected by a slot.

8. The explosion-proof lithium battery fire extinguishing device according to claim 7, characterized in that: The upper end of the positioning block (16) is snap-connected to a fixing groove (18) at a corresponding position, and the fixing grooves (18) are arranged at equal intervals at the lower end of the movable column (13).

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