CN213845398U

CN213845398U - Explosion-proof lithium battery

Info

Publication number: CN213845398U
Application number: CN202022399144.2U
Authority: CN
Inventors: 陈一淋
Original assignee: Shanghai Gengyu Explosion Proof Technology Co ltd
Current assignee: Shanghai Gengyu Explosion Proof Technology Co ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-07-30
Anticipated expiration: 2030-10-26

Abstract

The utility model discloses an explosion-proof lithium battery relates to lithium cell technical field, specifically is an explosion-proof lithium battery, including the battery protective sheath, the battery spacing groove has been seted up to the centre of battery protective sheath, inboard dashpot has been seted up to one side of battery spacing groove, inboard temperature detection groove has been seted up to the opposite side of battery spacing groove, the front side dashpot has been seted up in the place ahead of battery spacing groove, the rear of battery spacing groove has been seted up and has been out of shape and has been detected the groove, shrouding mounting screw hole has all been seted up to the upper surface and the lower surface of battery protective sheath, the inside of battery spacing groove is provided with the battery main part. This explosion-proof lithium cell through the setting of deformation detector, makes this explosion-proof lithium cell possess the effect of the expanded condition of detectable battery, through the setting of battery protective sheath, bottom shrouding and bottom refractory wool, and to a great extent reduces the effect of explosion power when making this explosion-proof lithium cell possess the battery explosion.

Description

Explosion-proof lithium battery

Technical Field

The utility model relates to a lithium cell technical field specifically is an explosion-proof lithium cell.

Background

The lithium cell has light in weight, small, the charging speed is fast, the great advantage of electric capacity, widely applied to various electrical apparatus products, including domestic appliance and electric motor car, but because the overcharge of lithium cell, cause battery operating current too big because of reasons such as overdischarge or internal short circuit, thereby make the temperature of battery too high, produce the highly compressed gas of high temperature, make the inside pressure of battery and temperature all very high, when pressure and temperature in the battery surpassed battery packaging container's bearing capacity, packaging container is exploded, the flammable and explosive material outflow of the inside, thereby arouse the explosion, serious accident such as fire, so, especially all need be provided with special explosion-proof equipment on the lithium cell on the battery, prevent the battery explosion.

However, the existing explosion-proof lithium battery has some problems in the using process, on one hand, a device for detecting the expansion of the battery is lacked, on the other hand, the basic number of the battery is so large that the battery always explodes, but the existing explosion-proof battery does not protect the situation of explosion, and therefore the explosion-proof lithium battery has the advantages that the expansion of the battery can be detected, and the explosion power is greatly reduced when the battery explodes.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides an explosion-proof lithium cell has solved the problem of proposing in the above-mentioned background art to the not enough of prior art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: an explosion-proof lithium battery comprises a battery protective sleeve, wherein a battery limiting groove is formed in the middle of the battery protective sleeve, an inner side buffer groove is formed in one side of the battery limiting groove, an inner side temperature detection groove is formed in the other side of the battery limiting groove, a front side buffer groove is formed in the front of the battery limiting groove, a deformation detection groove is formed in the rear of the battery limiting groove, seal plate mounting threaded holes are formed in the upper surface and the lower surface of the battery protective sleeve respectively, a battery main body is arranged in the battery limiting groove, side refractory cotton is fixedly connected in the inner side buffer groove, a temperature detector is fixedly connected in the inner side temperature detection groove, front side refractory cotton is fixedly connected in the front side buffer groove, rear side refractory cotton and the deformation detector are arranged in the deformation detection groove, and a bottom seal plate is fixedly connected below the battery protective sleeve, the battery protective sleeve is characterized in that bottom refractory cotton is arranged between the bottom sealing plate and the battery main body, an upper sealing plate is fixedly connected to the upper portion of the battery protective sleeve, and a processor is fixedly connected between the upper sealing plate and the battery main body.

Preferably, the rear refractory cotton is distributed on two sides of the deformation detection groove symmetrically, and a small gap is formed between the deformation detector and the rear refractory cotton.

Preferably, the battery main body and the battery limiting groove are in clearance fit, and the side refractory cotton, the front side refractory cotton, the rear side refractory cotton and the bottom refractory cotton are in interference fit with the battery main body.

Preferably, the deformation detector comprises two contact pieces, a distance is arranged between the two contact pieces, end fixing blocks are fixedly connected to the upper and lower sides of each contact piece, an insulating tape is fixedly connected to the outer surface of each contact piece, and a lead is fixedly connected to the upper side of each contact piece.

Preferably, the contact piece is made of brass, the end fixing block is made of plastic, and the other end of the lead is connected with the processor.

Preferably, the upper surface of the upper sealing plate is provided with an external wiring sheet, two sides of the lower surface of the upper sealing plate are fixedly connected with copying press blocks, the lower surface of each copying press block is provided with a wiring groove, and the periphery of the upper sealing plate is provided with countersunk holes.

Preferably, the upper sealing plate and the bottom sealing plate are fixedly connected with the battery protective sleeve through countersunk screws, and the exhaust hole is formed in the middle of the bottom sealing plate.

(III) advantageous effects

The utility model provides an explosion-proof lithium cell possesses following beneficial effect:

1. this explosion-proof lithium cell through the setting of deformation detector, makes this explosion-proof lithium cell possess the effect of the expanded condition of detectable battery, and extrusion deformation detector when square lithium cell expands, two contact pieces of deformation detector receive the extrusion deformation contact together to switch on warning circuit has realized that the control lithium cell takes place the expanded condition.

2. This explosion-proof lithium cell, through the battery protective sheath, the setting of bottom shrouding and bottom refractory cotton, the effect that very big degree reduces explosion power when making this explosion-proof lithium cell possess the battery explosion, a large amount of steam of blowout and flame during the lithium cell explosion, this explosion-proof lithium cell has durable battery protective sheath and has the bottom shrouding in exhaust hole, the steam that the explosion produced is discharged from the exhaust hole by the guide, receive bottom refractory cotton during the period and filter the reduction explosion in the twinkling of an eye, and bottom refractory cotton has the effect of eliminating flame, the effect of reducing explosion power has been reached.

Drawings

FIG. 1 is a schematic structural view of the overall exploded view of the present invention;

FIG. 2 is a schematic structural view of the overall perspective view of the present invention;

fig. 3 is a schematic structural view of a partial top view of the present invention;

FIG. 4 is a schematic structural view of the battery protection cover of the present invention

FIG. 5 is a schematic structural view of the deformation detector of the present invention

Fig. 6 is a schematic structural view of the upper sealing plate of the present invention.

In the figure: 1. a battery protective sheath; 101. a battery limiting groove; 102. an inner buffer tank; 103. an inner side temperature detection tank; 104. a front buffer tank; 105. a deformation detection tank; 106. the seal plate is provided with a threaded hole; 2. a battery main body; 3. side refractory cotton; 4. a temperature detector; 5. front side refractory cotton; 6. rear side refractory cotton; 7. a deformation detector; 701. a contact piece; 702. end fixing blocks; 703. an insulating tape; 704. a lead wire; 8. a bottom closing plate; 801. an exhaust hole; 9. bottom refractory cotton; 10. an upper sealing plate; 1001. an external connection chip; 1002. profiling pressing blocks; 1003. a wire slot; 1004. a countersunk hole; 11. a processor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 6, the present invention provides a technical solution: an explosion-proof lithium battery comprises a battery protective sleeve 1, a battery limiting groove 101 is arranged in the middle of the battery protective sleeve 1, an inner side buffer groove 102 is arranged on one side of the battery limiting groove 101, an inner side temperature detection groove 103 is arranged on the other side of the battery limiting groove 101, a front side buffer groove 104 is arranged in front of the battery limiting groove 101, a deformation detection groove 105 is arranged on the rear side of the battery limiting groove 101, seal plate mounting threaded holes 106 are formed in the upper surface and the lower surface of the battery protective sleeve 1, a battery main body 2 is arranged in the battery limiting groove 101, a side refractory cotton 3 is fixedly connected in the inner side buffer groove 102, a temperature detector 4 is fixedly connected in the inner side temperature detection groove 103, a front side refractory cotton 5 is fixedly connected in the front side buffer groove 104, a rear side refractory cotton 6 and a deformation detector 7 are arranged in the deformation detection groove 105, the deformation detector 7 comprises a contact piece 701, the number of the contact sheets 701 is two, a distance is arranged between the contact sheets 701, end fixing blocks 702 are fixedly connected above and below the contact sheets 701, an insulating tape 703 is fixedly connected on the outer surface of the contact sheets 701, a lead wire 704 is fixedly connected above the contact sheets 701, the contact sheets 701 are made of brass, the end fixing blocks 702 are made of plastic, the other end of the lead wire 704 is connected with the processor 11, the number of the rear side refractory cottons 6 is two, the two rear side refractory cottons are symmetrically distributed on two sides of the deformation detection groove 105, a small gap is arranged between the deformation detector 7 and the rear side refractory cottons 6, a bottom closing plate 8 is fixedly connected below the battery protection case 1, an exhaust hole 801 is arranged in the middle of the bottom closing plate 8, a bottom refractory cottons 9 is arranged between the bottom closing plate 8 and the battery main body 2, an upper closing plate 10 is fixedly connected above the battery protection case 1, and an external connection sheet 1001 is arranged on the upper surface of the upper closing plate 10, go up the both sides fixedly connected with copying briquetting 1002 of shrouding 10 lower surface, wire casing 1003 has been seted up to copying briquetting 1002's lower surface, counter sink 1004 has been seted up to the periphery of going up shrouding 10, go up shrouding 10 and bottom shrouding 8 all through countersunk screw and battery protection sleeve 1 fixed connection, go up fixedly connected with treater 11 between shrouding 10 and the battery main part 2, battery main part 2 is clearance fit with battery spacing groove 101, side refractory wool 3, front side refractory wool 5, rear side refractory wool 6 and bottom refractory wool 9 are interference fit with battery main part 2.

When in use, firstly, a piece of front side fire-resistant cotton 5 is pasted on the inner side wall of the front side buffer groove 104 by glue, two pieces of rear side fire-resistant cotton 6 are pasted on the two sides of the inner side wall of the deformation detection groove 105 by glue, a piece of side fire-resistant cotton 3 is pasted on the inner side wall of the inner side buffer groove 102, further, the bottom seal plate 8 is installed below the battery protective sleeve 1 by four countersunk head screws, the bottom fire-resistant cotton 9 and the battery main body 2 are further plugged into the battery protective sleeve 1 from the upper part to the inner part in sequence, at the moment, each fire-resistant cotton is in a compression state to play a role of absorbing external impact and protecting the battery main body 2, the temperature detector 4 is further inserted into the inner side temperature detection groove 103, the middle of the two pieces of rear side fire-resistant cotton 6 of the deformation detector 7 is inserted, the temperature detector 4 is further welded with a connection circuit of the processor 11 and the deformation detector 7 with the processor 11, and finally, the upper seal plate 10 is fixed by four countersunk head screws, when the battery main body 2 has a problem and a collision, the side wall of the battery main body 2 presses the deformation detector 7, two contact pieces 701 of the deformation detector 7 are pressed, deformed and contacted together, so that an alarm circuit is switched on, whether the battery is expanded or not is monitored in real time, airflow generated when the battery main body 2 explodes can only be ejected from the exhaust hole 801, meanwhile, ejected high-temperature substances are filtered by the bottom fire-resistant cotton 9 to avoid ejecting a large amount of flame, and therefore, even if the battery main body 2 explodes, only a large amount of smoke is ejected from the bottom, and the spark can not be ejected.

In summary, the explosion-proof lithium battery has the effect of detecting the expansion condition of the battery through the arrangement of the deformation detector 7, the deformation detector 7 is extruded when the square lithium battery expands, two contact pieces 701 of the deformation detector 7 are extruded, deformed and contacted together, so that an alarm circuit is connected, the expansion condition of the lithium battery is monitored, through the arrangement of the battery protective sleeve 1, the bottom seal plate 8 and the bottom fireproof cotton 9, the explosion-proof lithium battery has the effect of greatly reducing the explosion power when the battery explodes, a large amount of hot air and flame are sprayed when the lithium battery explodes, the explosion-proof lithium battery is provided with the firm battery protective sleeve 1 and the bottom seal plate 8 with the vent hole 801, the hot air generated by explosion is guided to be discharged from the vent hole 801, the instant explosion is reduced by the filtration of the bottom fireproof cotton 9 in the period, and the bottom fireproof cotton 9 has the function of eliminating the flame, the effect of reducing explosion power is achieved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An explosion-proof lithium cell, includes battery protection cover (1), its characterized in that: the battery protection sleeve is characterized in that a battery limiting groove (101) is formed in the middle of the battery protection sleeve (1), an inner side buffer groove (102) is formed in one side of the battery limiting groove (101), an inner side temperature detection groove (103) is formed in the other side of the battery limiting groove (101), a front side buffer groove (104) is formed in the front of the battery limiting groove (101), a deformation detection groove (105) is formed in the rear of the battery limiting groove (101), sealing plate mounting threaded holes (106) are formed in the upper surface and the lower surface of the battery protection sleeve (1), a battery main body (2) is arranged in the battery limiting groove (101), side fire-resistant cotton (3) is fixedly connected in the inner side buffer groove (102), a temperature detector (4) is fixedly connected in the inner side temperature detection groove (103), and front side fire-resistant cotton (5) is fixedly connected in the front side buffer groove (104), the deformation detection device is characterized in that rear side refractory cotton (6) and a deformation detector (7) are arranged inside the deformation detection groove (105), a bottom sealing plate (8) is fixedly connected to the lower portion of the battery protection sleeve (1), bottom refractory cotton (9) is arranged between the bottom sealing plate (8) and the battery main body (2), an upper sealing plate (10) is fixedly connected to the upper portion of the battery protection sleeve (1), and a processor (11) is fixedly connected between the upper sealing plate (10) and the battery main body (2).

2. The explosion-proof lithium battery of claim 1, wherein: the rear side refractory cotton (6) is distributed on two sides of the deformation detection groove (105) symmetrically, and a small gap is formed between the deformation detector (7) and the rear side refractory cotton (6).

3. The explosion-proof lithium battery of claim 1, wherein: the battery main body (2) is in clearance fit with the battery limiting groove (101), and the side fire-resistant cotton (3), the front side fire-resistant cotton (5), the rear side fire-resistant cotton (6) and the bottom fire-resistant cotton (9) are in interference fit with the battery main body (2).

4. The explosion-proof lithium battery of claim 1, wherein: the deformation detector (7) comprises two contact pieces (701), the number of the contact pieces (701) is two, a distance is arranged between the contact pieces (701), end fixing blocks (702) are fixedly connected to the upper side and the lower side of each contact piece (701), an insulating tape (703) is fixedly connected to the outer surface of each contact piece (701), and a lead (704) is fixedly connected to the upper side of each contact piece (701).

5. The explosion-proof lithium battery of claim 4, wherein: the contact piece (701) is made of brass, the end fixing block (702) is made of plastic, and the other end of the lead (704) is connected with the processor (11).

6. The explosion-proof lithium battery of claim 1, wherein: the upper surface of the upper sealing plate (10) is provided with an external wiring sheet (1001), two sides of the lower surface of the upper sealing plate (10) are fixedly connected with a copying pressing block (1002), a wiring groove (1003) is formed in the lower surface of the copying pressing block (1002), and countersunk holes (1004) are formed in the periphery of the upper sealing plate (10).

7. The explosion-proof lithium battery of claim 1, wherein: go up shrouding (10) and bottom shrouding (8) and all pass through countersunk head screw and battery protective sheath (1) fixed connection, exhaust hole (801) have been seted up to the centre of bottom shrouding (8).