CN219371229U - Special explosion-proof box for lithium battery out of control - Google Patents

Abstract

The utility model is suitable for the technical field of explosion-proof boxes, and provides a special explosion-proof box for lithium battery runaway, which comprises an explosion-proof box body and an explosion-proof box cover hinged to the top end of the explosion-proof box body, wherein a bottom cover is fixed at the bottom of the explosion-proof box body through bolts, and a lithium battery supporting structure is fixed in the explosion-proof box body; the explosion-proof box body comprises an outer box body and an inner box body, an isolation cavity is formed between the outer box body and the inner box body, and a plurality of connecting plates fixedly connected with the outer box body and the inner box body are arranged in the isolation cavity; and a filling cavity is formed among the two adjacent connecting plates, the outer box body and the inner box body, and a buffering new energy filling strip is filled in the filling cavity. The utility model is an isolation cavity formed by the outer box body and the inner box body, and the filling cavity formed by a plurality of connecting plates in the isolation cavity is filled with the buffer new energy filling strip, so that shock waves generated during explosion can be absorbed, the structural strength and the shock resistance of the explosion-proof box body are enhanced, and the use safety of the explosion-proof box is further improved.

Description

Special explosion-proof box for lithium battery out of control

Technical Field

The utility model relates to the technical field of explosion-proof boxes, in particular to a special explosion-proof box for lithium battery runaway.

Background

The lithium battery is a ferrous lithium phosphate battery or a nickel-cobalt-manganese mixed ternary lithium ion battery. A lithium battery is a high energy density battery. During the production, manufacture, semi-finished product transportation and product testing processes, enterprises producing lithium batteries pack often have the problems of wire outgoing, battery pack overcharge, battery cell short circuit and battery cell impact, and lithium batteries are easy to run away, so that deflagration and fire are caused. Lithium batteries are stored in an enterprise warehouse or a test space for battery production. The lithium battery is different from other objects in combustion in out-of-control combustion, is the electric energy release out-of-control that self cutting device became invalid, can not put out a fire with water, and carbon dioxide produces condensation drop easily and strengthens the short circuit, and dry powder fire extinguisher can have certain isolation, but the electric energy release can not terminate, at this moment needs to keep apart the battery out-of-control as early as possible, prevents open safe region, prevents that the electric core from deflagrating to splash and igniting other group batteries.

At present, the inside of an explosion-proof box in the market is full metal or fire-fighting sand, the short circuit is easy to strengthen on the surface of the full metal, and a deflagration battery cell can splash to eliminate the fire-fighting sand. The utility model provides a special explosion-proof case that lithium cell out of control of current authority bulletin number CN211719678U, includes explosion-proof case box and explosion-proof case upper cover, be equipped with the cavity in the explosion-proof case box, and the articulated explosion-proof case upper cover of top rear side, explosion-proof case upper cover expansion end articulates buckle plate, be equipped with on the explosion-proof case box with buckle board matched with explosion-proof case self-locking, explosion-proof case upper portion left and right sides is equipped with the box transport handle, explosion-proof case bottom four corners department is equipped with the universal wheel, explosion-proof case bottom left and right sides is equipped with the traction ring, explosion-proof case bottom front side intercommunication explosion-proof case box cavity's relief valve. The utility model overcomes the defects in the prior art, the upper cover is self-locked through the self-locking of the case, when personnel are not easy to approach the explosion-proof case, the case can be dragged by the traction ring, when the pressure in the case is too large, the case can be automatically decompressed, and the case can be carried by the carrying handle, so that the problem that the lithium battery is isolated after being out of control to prevent fire is solved. However, the single-layer anti-explosion box has poor structural strength, poor anti-explosion and anti-impact capabilities, and the self-locking buckle of the anti-explosion box matched with the buckle plate is used, so that the self-locking buckle is subjected to poor locking safety performance of materials after being buckled. Therefore, to the technical problem, the application provides the lithium battery out-of-control special explosion-proof box which is more reasonable in structure and stronger in anti-riot and impact-resistant capabilities.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide the special explosion-proof box for the lithium battery, which has more reasonable structure, higher structural strength and stronger anti-riot and anti-impact capabilities.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to a special explosion-proof box for lithium battery runaway, which comprises an explosion-proof box body and an explosion-proof box cover hinged to the top end of the explosion-proof box body, wherein a bottom cover is fixed at the bottom of the explosion-proof box body through bolts, and a lithium battery supporting structure is fixed in the explosion-proof box body.

The explosion-proof box body comprises an outer box body and an inner box body, an isolation cavity is formed between the outer box body and the inner box body, and a plurality of connecting plates fixedly connected with the outer box body and the inner box body are arranged in the isolation cavity; a filling cavity is formed among two adjacent connecting plates, the outer box body and the inner box body, and a buffering new energy filling strip is filled in the filling cavity; the fire-extinguishing dry powder storage cavity is formed in the explosion-proof box cover, a feeding tube communicated with the fire-extinguishing dry powder storage cavity is fixed at the top of the explosion-proof box cover, a sealing cover is fixed at the top end of the feeding tube, and a spray head communicated with the fire-extinguishing dry powder storage cavity is fixed at the bottom of the explosion-proof box cover and at the position inside the inner box body.

As a preferable technical scheme of the utility model, universal wheels with self-locking function are fixed at four corners of the bottom cover, and a plurality of limit filling blocks matched with the filling cavity and a limit frame matched with the inner box body are fixed at the top of the bottom cover.

As a preferable technical scheme of the utility model, a plurality of external thread columns penetrating through the edge of the outer box body are fixed on the top edge of the bottom cover, and hexagonal nuts are connected to the external thread columns in a threaded manner.

As a preferable technical scheme of the utility model, a pressure release valve penetrating through the outer box body and the inner box body from outside to inside is fixed on one surface of the outer box body.

As a preferable technical scheme of the utility model, a sensor is fixed at the bottom of the explosion-proof box cover, the sensor comprises a temperature sensor, a smoke sensor and a pressure sensor, and a flange matched with the isolation cavity is fixed at the inner edge of the explosion-proof box cover.

As a preferable technical scheme of the utility model, the lithium battery supporting structure is fixed in the inner box body through bolts and comprises a supporting frame, the supporting frame is fixed in the inner box body through bolts, a plurality of supporting rods are fixed in the supporting frame at equal intervals, and a mounting frame matched with the supporting frame is fixed in the inner box body.

As a preferable technical scheme of the utility model, the top edge of the outer box body is hinged with a T-shaped connecting rod, a U-shaped clamping seat matched with the T-shaped connecting rod is fixed on the explosion-proof box cover, and the T-shaped connecting rod penetrates through the U-shaped clamping seat and is fixedly connected with the U-shaped clamping seat through a locking wheel connected with the T-shaped connecting rod through threads.

The utility model has the advantages that:

1. according to the utility model, the isolation cavity formed by the outer box body and the inner box body, and the filling cavity formed by the connecting plates in the isolation cavity is filled with the buffer new energy filling strip, so that shock waves generated during explosion can be absorbed, the structural strength and the shock resistance of the explosion-proof box body are enhanced, and the use safety of the explosion-proof box is further improved.

2. According to the utility model, the fire extinguishing dry powder is arranged in the explosion-proof box cover, the spray head extending to the inner part of the inner box body is arranged at the bottom of the explosion-proof box cover, the out-of-control state can be restrained to a certain extent after the out-of-control lithium battery is put into the inner box body, the use safety of the explosion-proof box body is further improved, the out-of-control lithium battery is prevented from contacting with the bottom or the bottom cover of the explosion-proof box body in the explosion-proof box body through the lithium battery supporting structure, the out-of-control lithium battery is prevented from directly contacting with the bottom cover to react, and the safety performance of the explosion-proof box is further improved.

Drawings

Fig. 1 is a schematic structural diagram of an explosion-proof box special for lithium battery runaway in the utility model.

Fig. 2 is a left side view of the present utility model.

Fig. 3 is a schematic cross-sectional view of fig. 2 at A-A.

Fig. 4 is a schematic structural view of the explosion-proof case.

Fig. 5 is a schematic structural view of the explosion-proof case from another view angle.

Fig. 6 is a schematic sectional structure of the explosion-proof case.

Fig. 7 is a schematic structural view of the bottom cover.

Fig. 8 is a schematic structural view of the explosion-proof tank cover.

Fig. 9 is a schematic structural view of an explosion proof tank cover at another view angle.

Fig. 10 is a schematic sectional view of the lid of the explosion-proof tank.

Fig. 11 is a schematic structural view of a lithium battery support structure.

In the accompanying drawings: 1. an explosion-proof box body; 2. an explosion-proof box cover; 3. a bottom cover; 4. a lithium battery support structure; 5. buffering new energy filling strips; 6. a universal wheel; 7. a pressure release valve; 8. a T-shaped connecting rod; 9. a U-shaped clamping seat; 10. a locking wheel; 101. an outer case; 102. an inner case; 103. an isolation chamber; 104. a connecting plate; 105. filling the cavity; 106. a mounting frame; 201. a fire extinguishing dry powder storage cavity; 202. a feeding tube; 203. sealing cover; 204. a spray head; 205. a sensor; 206. a flange; 301. limiting filling blocks; 302. a limit frame; 303. an external threaded column; 304. a hexagonal nut; 401. a support frame; 402. and (5) supporting the rod.

Detailed Description

It should be noted that, without conflict, the embodiments and features of the embodiments in the present application may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.

In the present utility model, unless otherwise indicated, the terms "upper" and "lower" are used generally with respect to the directions shown in the drawings, or with respect to the vertical, vertical or gravitational directions; also, for ease of understanding and description, "left, right" is generally directed to the left, right as shown in the drawings; "inner and outer" refer to inner and outer relative to the outline of the components themselves, but the above-described orientation terms are not intended to limit the present utility model.

First embodiment:

referring to fig. 1-11, the present utility model provides the following technical solutions:

the special explosion-proof box for the lithium battery runaway comprises an explosion-proof box body 1 and an explosion-proof box cover 2 hinged to the top end of the explosion-proof box body 1, wherein a bottom cover 3 is fixed to the bottom of the explosion-proof box body 1 through bolts. The explosion-proof box body 1 comprises an outer box body 101 and an inner box body 102, an isolation cavity 103 is formed between the outer box body 101 and the inner box body 102, and a plurality of connecting plates 104 fixedly connected with the outer box body 101 and the inner box body 102 are arranged in the isolation cavity 103; a filling cavity 105 is formed among the two adjacent connecting plates 104, the outer box body 101 and the inner box body 102, and the filling cavity 105 is filled with a buffering new energy filling strip 5.

The four corners of the bottom cover 3 are fixed with universal wheels 6 with self-locking function, and the top of the bottom cover 3 is fixed with a plurality of limit filling blocks 301 matched with the filling cavity 105 and a limit frame 302 matched with the inner box 102. The top edge of the bottom cover 3 is fixed with a plurality of external thread columns 303 penetrating through the edge of the outer box 101, and hexagonal nuts 304 are connected to the external thread columns 303 in a threaded manner.

A pressure release valve 7 penetrating through the outer box body 101 and the inner box body 102 from outside to inside is fixed on one surface of the outer box body 101. The top edge of the outer box body 101 is hinged with a T-shaped connecting rod 8, a U-shaped clamping seat 9 matched with the T-shaped connecting rod 8 is fixed on the explosion-proof box cover 2, and the T-shaped connecting rod 8 penetrates through the U-shaped clamping seat 9 and is fixedly connected with the U-shaped clamping seat 9 through a locking wheel 10 which is connected onto the T-shaped connecting rod 8 in a threaded manner.

The working principle of the special explosion-proof box for lithium battery runaway provided by the utility model is as follows:

through the cooperation of T shape connecting rod 8 and U-shaped cassette 9, use locking wheel 10 to firmly fix explosion-proof case lid 2 at explosion-proof case box 1 top, the isolation chamber 103 that comprises outer box 101 and interior box 102 to fill buffering new energy packing strip 5 in the packing chamber 105 that comprises a plurality of connecting plates 104 in the isolation chamber 103, can absorb the shock wave that produces when exploding, strengthen the structural strength and the shock resistance of this explosion-proof case box 1, and can remove when required through the universal wheel that sets up in the bottom.

Specific embodiment II:

on the basis of the first embodiment, the present embodiment is different in that:

as shown in fig. 8-10, a fire-extinguishing dry powder storage cavity 201 is formed in the explosion-proof box cover 2, a feeding pipe 202 communicated with the fire-extinguishing dry powder storage cavity 201 is fixed at the top of the explosion-proof box cover 2, a sealing cover 203 is fixed at the top end of the feeding pipe 202, and a spray head 204 communicated with the fire-extinguishing dry powder storage cavity 201 is fixed at the bottom of the explosion-proof box cover 2 and at the position inside the inner box body 102. The bottom of the explosion-proof box cover 2 is fixed with a sensor 205, the sensor 205 comprises a temperature sensor, a smoke sensor and a pressure sensor, and the inner edge of the explosion-proof box cover 2 is fixed with a flange 206 matched with the isolation cavity 103. By arranging the fire extinguishing dry powder storage cavity 201 in the explosion-proof box cover 2 and filling the dry powder fire extinguishing agent or the carbon dioxide fire extinguishing agent used for the lithium battery, when the lithium battery out of control is put in, the out of control state can be restrained to a certain extent, and the use safety of the explosion-proof box body 1 is further improved.

Third embodiment:

on the basis of the second embodiment, the difference of this embodiment is that:

as shown in fig. 11, a lithium battery supporting structure 4 is fixed inside the explosion-proof box body 1; the lithium battery supporting structure 4 is fixed inside the inner box 102 through bolts, the lithium battery supporting structure 4 comprises a supporting frame 401, the supporting frame 401 is fixed inside the inner box 102 through bolts, a plurality of supporting rods 402 are fixed inside the supporting frame 401 at equal intervals, and a mounting frame 106 matched with the supporting frame 401 is fixed in the inner box 102. The lithium battery supporting structure 4 enables the lithium battery out of control not to contact with the bottom of the explosion-proof box body 1 or the bottom cover 3 in the explosion-proof box body 1, and the lithium battery out of control is prevented from directly contacting with the bottom cover 3 to react.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (7)

1. The utility model provides a special explosion-proof case that lithium cell is out of control, includes explosion-proof case box (1) and articulates explosion-proof case lid (2) on explosion-proof case box (1) top, its characterized in that:

the bottom of the explosion-proof box body (1) is fixed with a bottom cover (3) through bolts, and a lithium battery supporting structure (4) is fixed inside the explosion-proof box body (1);

the explosion-proof box body (1) comprises an outer box body (101) and an inner box body (102), an isolation cavity (103) is formed between the outer box body (101) and the inner box body (102), and a plurality of connecting plates (104) fixedly connected with the outer box body (101) and the inner box body (102) are arranged in the isolation cavity (103);

a filling cavity (105) is formed among two adjacent connecting plates (104), the outer box body (101) and the inner box body (102), and a buffering new energy filling strip (5) is filled in the filling cavity (105);

the fire extinguishing dry powder storage cavity (201) is formed in the explosion-proof box cover (2), a feeding pipe (202) communicated with the fire extinguishing dry powder storage cavity (201) is fixed at the top of the explosion-proof box cover (2), a sealing cover (203) is fixed at the top end of the feeding pipe (202), and a spray head (204) communicated with the fire extinguishing dry powder storage cavity (201) is fixed at the bottom of the explosion-proof box cover (2) and located inside the inner box body (102).

2. The explosion-proof box special for lithium battery runaway according to claim 1, wherein universal wheels (6) with self-locking functions are fixed at four corners of the bottom cover (3), and a plurality of limiting filling blocks (301) matched with the filling cavity (105) and limiting frames (302) matched with the inner box body (102) are fixed at the top of the bottom cover (3).

3. The explosion-proof box special for lithium battery runaway according to claim 1, wherein a plurality of external thread columns (303) penetrating through the edge of the outer box body (101) are fixed on the top edge of the bottom cover (3), and hexagonal nuts (304) are connected to the external thread columns (303) in a threaded mode.

4. The explosion-proof box special for lithium battery runaway according to claim 1, wherein a surface of the outer box body (101) is fixedly provided with a pressure release valve (7) penetrating through the outer box body (101) and the inner box body (102) from outside to inside.

5. The explosion-proof box special for lithium battery runaway according to claim 1, wherein a sensor (205) is fixed at the bottom of the explosion-proof box cover (2), the sensor (205) comprises a temperature sensor, a smoke sensor and a pressure sensor, and a flange (206) matched with the isolation cavity (103) is fixed at the inner edge of the explosion-proof box cover (2).

6. The special explosion-proof box for lithium battery runaway according to claim 1, wherein the lithium battery supporting structure (4) is fixed inside the inner box body (102) through bolts, the lithium battery supporting structure (4) comprises a supporting frame (401), the supporting frame (401) is fixed inside the inner box body (102) through bolts, a plurality of supporting rods (402) are fixed inside the supporting frame (401) at equal intervals, and a mounting frame (106) matched with the supporting frame (401) is fixed in the inner box body (102).

7. The explosion-proof box special for lithium battery runaway according to claim 1, wherein the top edge of the outer box body (101) is hinged with a T-shaped connecting rod (8), a U-shaped clamping seat (9) matched with the T-shaped connecting rod (8) is fixed on the explosion-proof box cover (2), and the T-shaped connecting rod (8) penetrates through the U-shaped clamping seat (9) and is fixedly connected with the U-shaped clamping seat (9) through a locking wheel (10) connected to the T-shaped connecting rod (8) through threads.