CN211455788U

CN211455788U - Lithium cell shock attenuation protection device that insulates against heat

Info

Publication number: CN211455788U
Application number: CN202020360590.XU
Authority: CN
Inventors: 杨品文; 祝卫建; 凌桂勇; 刘焕光
Original assignee: Shenzhen Kelixin Electronic Technology Co ltd
Current assignee: Shenzhen Kelixin Electronic Technology Co ltd
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2020-09-08
Anticipated expiration: 2030-03-20

Abstract

The utility model belongs to the technical field of lithium batteries, a lithium battery shock absorption and heat insulation protection device is disclosed, a plurality of equidistantly arranged springs are fixed on both sides and the bottom of the inner wall of a shell through bolts, the outer ends of a plurality of springs on the left side of the inner wall of the shell are connected with a left side buffer plate through bolts, the outer ends of a plurality of springs on the right side of the inner wall of the shell are connected with a right side buffer plate through bolts, and the upper ends of a plurality of springs on the bottom of the inner wall of the shell are connected; the outside parcel of casing has the insulating layer, and the insulating layer outside parcel has the alloy board. The utility model discloses a place the lithium cell between a plurality of buffer boards of casing inside, can avoid the lithium cell to receive the vibrations of equidirectional, through buffer board with a plurality of spring coupling of homonymy, can make a plurality of springs atress simultaneously, avoid long-time use to cause the problem that elasticity reduces; and the heat insulating layer outside the shell can insulate the shell from the heat of the external environment, so that the normal use of the battery is ensured.

Description

Lithium cell shock attenuation protection device that insulates against heat

Technical Field

The utility model belongs to the technical field of the lithium cell, especially, relate to a lithium cell shock attenuation protection device that insulates against heat.

Background

At present: in the battery market, the lithium battery rapidly occupies the market by virtue of the characteristics of energy conservation, environmental protection, safety, low maintenance cost, long service life, value preservation, large development space and the like, and gradually replaces the traditional lead-acid storage battery. The lithium battery has the advantages of high single battery voltage, large specific energy, long storage life and good high-low temperature performance, and can be used at the temperature of minus 40 ℃ to 150 ℃. The disadvantages are high price and low safety. Nowadays, with the development of society, people have more and more great development requirements on lithium batteries. The existing lithium battery protection device is comprehensive, but has some defects in the use process. As the energy density of the lithium ion battery is increasing, once the lithium ion is mechanically damaged (squeezed, pierced, etc.), or thermal runaway may occur due to short circuit and external thermal triggering, it is necessary to isolate the external heat as much as possible and to protect the lithium ion battery from shock.

But present lithium battery protection device uses spring and rubber pad more in the shock attenuation, but because lithium cell self weight causes the oppression to spring and rubber pad for a long time, causes the elastic coefficient decline and the rubber pad undercut of spring, causes the absorbing effect decline of device, has reduced the life of device. The existing lithium battery protection device generally lacks of the heat insulation effect on the lithium battery, and the lithium battery can damage the internal structure of the lithium battery due to long-term influence of external factors, so that certain economic loss is caused.

Through the above analysis, the problems and defects of the prior art are as follows:

(1) the existing lithium battery protection device is provided with springs and rubber pads for damping, the damping effect of the device is reduced easily after long-time use, and the service life of the device is shortened.

(2) The existing lithium battery protection device generally lacks of the heat insulation effect on the lithium battery, and the lithium battery can damage the internal structure of the lithium battery due to long-term influence of external factors, so that certain economic loss is caused.

SUMMERY OF THE UTILITY MODEL

Problem to prior art existence, the utility model provides a lithium cell shock attenuation protection device that insulates against heat.

The utility model discloses a realize like this, a lithium cell shock attenuation protection device that insulates against heat is provided with:

a housing;

the two sides and the bottom of the inner wall of the shell are both fixed with a plurality of springs which are arranged at equal intervals through bolts, the outer ends of the plurality of springs on the left side of the inner wall of the shell are connected with a left buffer plate through bolts, the outer ends of the plurality of springs on the right side of the inner wall of the shell are connected with a right buffer plate through bolts, and the upper ends of the plurality of springs on the bottom of the inner wall of the shell are connected with a bottom buffer plate through bolts;

the outside parcel of casing has the insulating layer, the insulating layer outside parcel has the alloy board.

Furthermore, an interlayer is arranged on the inner side of the side wall of the shell, and a flame-retardant material layer is filled in the interlayer.

Further, the rubber pad has all been pasted to left side buffer board, right side buffer board and bottom buffer board surface, and a plurality of through-holes have all been seted up to left side buffer board, right side buffer board, bottom buffer board and rubber pad.

Furthermore, the upper end of the shell is connected with a cover plate through a hinge shaft, a plurality of springs are fixed on the inner side of the cover plate through bolts, and the lower ends of the springs are connected with an upper end buffer plate through bolts.

Furthermore, a groove is formed in the upper end of the cover plate, and a handle is fixed in the groove through a spring hinge shaft.

Furthermore, a plurality of fixing plates are welded on the outer side of the bottom of the shell, and an oval fixing hole is formed in the middle of each fixing plate.

Combine foretell all technical scheme, the utility model discloses the advantage that possesses and positive effect are:

(1) the utility model discloses a place the lithium cell between a plurality of buffer boards of casing inside, can carry out the shock attenuation buffering to the lithium cell through the buffer board, can avoid the lithium cell to receive the vibrations of equidirectional, connect a plurality of springs of homonymy through the buffer board, can make a plurality of springs atress simultaneously, avoid long-time use to cause the problem that elasticity reduces; and the heat of casing and external environment can be kept apart through the insulating layer in the casing outside, avoids the lithium cell in the casing to receive external environment's influence, guarantees the normal use of battery.

(2) The utility model discloses a fire-retardant effect can be played on the intraformational flame retardant material layer of casing clamp, avoids the lithium cell in the casing to receive the burning damage.

(3) The utility model discloses a rubber pad and lithium cell direct contact can be surperficial in buffer process, and the buffer board causes the friction damage to the lithium cell, can guarantee the radiating effect of lithium cell through the through-hole, avoids the high temperature to influence the use.

(4) The utility model discloses a apron can seal the upper end of casing, can cushion the protection to the upside of lithium cell through the upper end buffer board, further reduces the damage that causes when the lithium cell receives vibrations from top to bottom.

(5) The utility model discloses a handle can be conveniently fixed through the spring hinge to the bulk movement of device, can make the handle can automatic re-setting, convenient storage.

(6) The utility model discloses a fixed plate can conveniently fix the casing, can be through the counterpoint of oval fixed orifices convenient bolt hole when fixed, the installation of being convenient for.

Drawings

Fig. 1 is a schematic structural view of a shock-absorbing and heat-insulating protection device for a lithium battery provided by an embodiment of the present invention.

Fig. 2 is a schematic view of a sandwich structure provided by an embodiment of the present invention.

Fig. 3 is a schematic view of a handle structure according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a fixing plate according to an embodiment of the present invention.

In the figure: 1. a housing; 2. a spring; 3. a left side buffer plate; 4. a right side buffer plate; 5. a bottom buffer plate; 6. a thermal insulation layer; 7. an alloy plate; 8. an interlayer; 9. a layer of flame retardant material; 10. a rubber pad; 11. a cover plate; 12. an upper end buffer plate; 13. a groove; 14. a handle; 15. a spring hinge shaft; 16. a fixing plate; 17. an oval fixing hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

To the problem that prior art exists, the utility model provides a lithium cell shock attenuation protection device that insulates against heat, it is right to combine the figure below the utility model discloses do detailed description.

The two sides and the bottom of the inner wall of the shell 1 are both fixed with a plurality of springs 2 which are arranged at equal intervals through bolts, the outer ends of the plurality of springs 2 on the left side of the inner wall of the shell 1 are connected with a left buffer plate 3 through bolts, the outer ends of the plurality of springs on the right side of the inner wall of the shell 1 are connected with a right buffer plate 4 through bolts, and the upper ends of the plurality of springs at the bottom of the inner wall of the shell 1 are connected with a bottom buffer; the outside of the shell 1 is wrapped with a heat insulation layer 6, and the outside of the heat insulation layer 6 is wrapped with an alloy plate 7.

Preferably, an interlayer 8 is formed on the inner side of the side wall of the shell 1, and the interlayer 8 is filled with a flame retardant material layer 9. The flame-retardant material layer in the shell interlayer can play a flame-retardant effect, and the lithium battery in the shell is prevented from being damaged by combustion.

As preferred, rubber pad 10 has all been pasted to left side buffer board 3, right side buffer board 4 and 5 surfaces of bottom buffer board, and a plurality of through-holes have all been seted up to left side buffer board 3, right side buffer board 4, bottom buffer board 5 and rubber pad 10. Through rubber pad and lithium cell direct contact, can the surface in buffer process, the buffer board causes the friction damage to the lithium cell, can guarantee the radiating effect of lithium cell through the through-hole, avoids the high temperature to influence the use.

Preferably, the upper end of the housing 1 is connected to a cover plate 11 through a hinge shaft, a plurality of springs are fixed to the inner side of the cover plate 11 through bolts, and the lower ends of the springs are connected to an upper end buffer plate 12 through bolts. Can seal the upper end of casing through the apron, can cushion the protection to the upside of lithium cell through the upper end buffer board, further reduce the damage that causes when the lithium cell receives vibrations from top to bottom.

Preferably, the cover plate 11 has a groove 13 formed at an upper end thereof, and a handle 14 is fixed in the groove 13 via a spring hinge 15. The handle can conveniently move the whole device, and is fixed through the spring hinge shaft, so that the handle can automatically reset and is convenient to store.

Preferably, a plurality of fixing plates 16 are welded to the outer side of the bottom of the housing 1, and an oval fixing hole 17 is formed in the middle of the fixing plate 16. The shell can be conveniently fixed through the fixing plate, and the bolt holes can be conveniently aligned and installed through the oval fixing holes when the shell is fixed.

The utility model discloses when using, fix casing 1 in the position of use through fixed plate 16, oval fixed orifices 17 in the middle of the fixed plate 16 can be when fixed convenient bolt hole's counterpoint. After the fixing, the lithium battery is placed in the shell 1, the upper end cover plate 11 is closed, the internal lithium battery is buffered and damped through the left buffer plate 3, the right buffer plate 4 and the bottom buffer plate 5, so that the lithium battery can be prevented from being vibrated in different directions, a plurality of springs on the same side are connected through the buffer plates, the springs can be stressed at the same time, and the problem of elasticity reduction caused by long-time use is solved; and the heat of casing and external environment can be kept apart through the insulating layer in the casing outside, avoids the lithium cell in the casing to receive external environment's influence, guarantees the normal use of battery.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be covered within the protection scope of the present invention by those skilled in the art within the technical scope of the present invention.

Claims

1. The utility model provides a lithium cell shock attenuation protection device that insulates against heat which characterized in that, lithium cell shock attenuation protection device that insulates against heat is provided with:

a housing;

2. The lithium battery shock absorption and heat insulation protection device as claimed in claim 1, wherein an interlayer is formed on the inner side of the side wall of the casing, and the interlayer is filled with a flame retardant material layer.

3. The lithium battery shock absorption and thermal insulation protection device as claimed in claim 1, wherein the outer surfaces of the left buffer plate, the right buffer plate and the bottom buffer plate are adhered with rubber pads, and the left buffer plate, the right buffer plate, the bottom buffer plate and the rubber pads are provided with a plurality of through holes.

4. The lithium battery shock-absorbing heat-insulating protection device as claimed in claim 1, wherein the upper end of the case is connected to a cover plate through a hinge, a plurality of springs are fixed to the inner side of the cover plate through bolts, and an upper buffer plate is connected to the lower ends of the springs through bolts.

5. The lithium battery shock absorption and heat insulation protection device as claimed in claim 4, wherein a groove is formed at the upper end of the cover plate, and a handle is fixed in the groove through a spring hinge shaft.

6. The lithium battery shock-absorbing heat-insulating protection device as claimed in claim 1, wherein a plurality of fixing plates are welded to the outer side of the bottom of the housing, and an elliptical fixing hole is formed in the middle of each fixing plate.