CN211907536U

CN211907536U - Lithium battery with impact protection structure

Info

Publication number: CN211907536U
Application number: CN202020885426.0U
Authority: CN
Inventors: 吕清花
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2020-11-10
Anticipated expiration: 2030-05-25

Abstract

The utility model relates to a lithium battery construction technical field just discloses a lithium cell with striking protection architecture, including top cap and shell, top cap and the fixed bonding of shell, the fixed slot has been seted up to the side of top cap, the inside set screw hole of fixed slot, the fixed cover of inside of fixed slot has cup jointed protective structure, protective structure's size and thickness respectively with the size and the degree of depth looks adaptation of fixed slot, protective structure includes inlayer, middle level and skin, the material of inlayer is soft sponge board, medial material is the honeycomb panel, the orientation of the inside honeycomb of middle level is towards the inside direction of top cap. This kind of crashproof protection architecture of lithium cell is through seting up the fixed slot in the shell side to at its inside through screw installation multilayer protective structure, make the lithium cell can produce deformation when receiving the side impact, and then absorb the striking, avoid the striking directly to transmit the inside battery content of shell, cause the lithium cell to damage.

Description

Lithium battery with impact protection structure

Technical Field

The utility model relates to a lithium battery construction technical field specifically is a lithium cell with striking protection architecture.

Background

The lithium battery is a power supply with a small and exquisite structure and can be repeatedly charged and used, and the general structure is composed of an external shell and internal battery contents.

The shell of current lithium cell generally is the plastics material, when receiving the striking or drop, and its plastic casing can will strike direct transmission to inside battery content to cause the structural damage of battery content, and current lithium cell often all be the atress that lands earlier of corner when dropping, produce cracked, but current structure can't effectively protect it.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a lithium cell with striking protection architecture possesses detachable protective structure and can produce deformation when the lithium cell receives the striking, and then absorbs the impact force, avoids inside battery content to damage, buckle formula angle bead can be at first with the bottom surface contact when the lithium cell drops, and then absorbs the impact, and the problem that the background art provided has been solved to the advantage of protection casing.

(II) technical scheme

Can produce deformation when the lithium cell receives the striking for realizing above-mentioned detachable protective structure, and then absorb the impact force, avoid inside battery content to damage, buckle formula angle bead can be at first with the bottom surface contact when the lithium cell drops, and then absorb the impact, protect the purpose of casing, the utility model provides a following technical scheme: the utility model provides a lithium cell with striking protection architecture, includes top cap and shell, and top cap and shell fixed bonding, the fixed slot has been seted up to the side of top cap, the inside screw hole of seting up of fixed slot, the fixed cover in inside of fixed slot has cup jointed protective structure, protective structure's size and thickness respectively with the size and the degree of depth looks adaptation of fixed slot, protective structure includes inlayer, middle level and skin, the material of inlayer is soft sponge board, medial material is the honeycomb panel, the orientation of the inside honeycomb of middle level is the inside direction of orientation top cap, outer material is fire prevention cloth.

Preferably, the draw-in groove has all been seted up to the side of the corner of top cap and shell, the corner fixing clip of top cap and shell has the angle bead, the quantity of angle bead is the same with the corner total number of top cap and shell, the medial surface of angle bead is equipped with the buckle, every the inside buckle quantity of angle bead is three, and is three the position of buckle respectively with the draw-in groove position looks adaptation of every corner, buckle and draw-in groove fixing clip.

Preferably, the number of the fixing grooves is the same as that of the top cover and the side surfaces of the shell, and the fixing grooves correspond to the top cover and the side surfaces of the shell one by one, and the depth of each fixing groove is smaller than the wall thickness of the top cover.

Preferably, the threaded holes are located at corners inside the fixing grooves, the number of the threaded holes in each fixing groove is four, and the four threaded holes are uniformly distributed in the fixing grooves.

Preferably, the inner layer, the middle layer and the outer layer are fixedly bonded, and the thickness of the middle layer is larger than that of the inner layer and that of the outer layer.

Preferably, the side surface of the inner layer is provided with a first through hole, the side surface of the middle layer is provided with a second through hole, and the side surface of the outer layer is provided with a third through hole.

Preferably, the number and the position of the first through hole, the second through hole and the threaded hole are respectively the same, the cross section of the third through hole is in a T shape, the number and the position of the third through hole are respectively matched with those of the threaded hole, and screws are sleeved on the inner threads of the third through hole, the second through hole, the first through hole and the threaded hole.

Preferably, the number of the card slots is twenty-four, and the twenty-four card slots are divided into eight groups in every three groups.

Preferably, the cross-sectional shape of the clamping groove is L-shaped, the cross-sectional shape of the buckle is T-shaped, and the end of the buckle extends into the clamping groove.

(III) advantageous effects

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. this kind of crashproof protection architecture of lithium cell is through seting up the fixed slot in the shell side to at its inside through screw installation multilayer protective structure, make the lithium cell can produce deformation when receiving the side impact, and then absorb the striking, avoid the striking directly to transmit the inside battery content of shell, cause the lithium cell to damage.

2. This kind of crashproof protection architecture of lithium cell sets up the draw-in groove through the corner at the lithium cell to at its outside lock joint angle bead, make when the lithium cell drops, the angle bead can at first contact with the bottom surface, and absorb the impact, thereby protect the lithium cell, after cracked change the angle bead can.

Drawings

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

FIG. 2 is an exploded view of the protective structure of the present invention;

FIG. 3 is an internal schematic view of the structure calling structure of the present invention;

fig. 4 is an explosion diagram of the structure corner protector of the present invention.

In the figure: 1. a top cover; 2. a housing; 201. fixing grooves; 202. a threaded hole; 203. a card slot; 3. an inner layer; 301. a first through hole; 4. a middle layer; 401. a second through hole; 5. an outer layer; 501. a third through hole; 6. a screw; 7. protecting the corner; 701. and (5) buckling.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example one

Referring to fig. 1-2, a lithium battery with an impact protection structure includes a top cap 1 and a housing 2, the top cap 1 is fixedly bonded to the housing 2, a fixing groove 201 is formed in a side surface of the top cap 1 for mounting a protection component, the number of the fixing grooves 201 is the same as the number of the side surfaces of the top cap 1 and the housing 2, and is one-to-one corresponding to the number of the side surfaces of the top cap 1 and the housing 2, the depth of the fixing groove 201 is smaller than the wall thickness of the top cap 1, a threaded hole 202 is formed in the fixing groove 201 for mounting a fastener, the threaded hole 202 is located at a corner of the fixing groove 201, the number of the threaded holes 202 in each fixing groove 201 is four, the four threaded holes 202 are uniformly distributed in the fixing groove 201, fastening firmness is guaranteed, the protection structure is fixedly sleeved in the fixing groove 201, the protection structure comprises an inner layer 3, a middle layer 4 and an outer layer 5, the inner layer 3, the middle layer 4 and the outer layer 5 are fixedly bonded, the thickness of the middle layer 4 is larger than the thicknesses of the inner layer 3 and the outer layer 5, the inner layer 3 is made of a soft sponge plate and plays a role of buffering, the middle layer 4 is made of a honeycomb plate and is used for generating plastic deformation in the process of bearing impact, so that impact force is absorbed, the orientation of the honeycomb in the middle layer 4 is towards the inner part of the top cover 1, so that the middle layer 4 has certain strength and the firmness of the protection structure is ensured, the outer layer 5 is made of fireproof cloth and is used for carrying out fireproof protection on a lithium battery and blocking external dust, a first through hole 301 is formed in the side surface of the inner layer 3, a second through hole 401 is formed in the side surface of the middle layer 4, the number and the positions of the first through, three through holes 501 are formed in the side face of the outer layer 5, the cross section of the three through holes 501 is T-shaped and used for limiting, the number and the positions of the three through holes 501 are respectively matched with the number and the positions of the threaded holes 202, and screws 6 are sleeved on the three through holes 501, the two through holes 401, the first through holes 301 and the internal threads of the threaded holes 202 and used for fixing the protection assembly.

Example two

Referring to fig. 4, based on the first embodiment, the side surfaces of the corners of the top cover 1 and the housing 2 are respectively provided with the slots 203 for fixing, the number of the slots 203 is twenty-four, each group of twenty-four slots 203 is divided into eight groups, the cross-sectional shapes of the slots 203 are L-shaped, the corners of the top cover 1 and the housing 2 are fixedly clamped with the corner protectors 7 for absorbing impact and protecting the top cover 1 and the housing 2, the number of the corner protectors 7 is the same as the total number of the corners of the top cover 1 and the housing 2, the inner side surfaces of the corner protectors 7 are provided with the buckles 701, the number of the buckles 701 inside each corner protector 7 is three, the positions of the three buckles 701 are respectively matched with the positions of the slots 203 at each corner, the cross-sectional shape of the buckle 701 is t-shaped, the end portions of the buckles 701 extend to the inside the slots 203, and the buckles 701.

The working principle is as follows: when receiving the side striking, the impact is at first used in outer 5, middle level 4 and inlayer 3, plastic deformation through outer 5 absorbs the impact, and elastic deformation through inlayer 3 carries out the secondary absorption, thereby realize the protection to top cap 1, when top cap 1 drops, angle bead 7 at first contacts with the bottom surface, receive after the impact or deformation or cracked, thereby protect top cap 1 and shell 2, in the time of the change, screw out screw 6, can be to inlayer 3, middle level 4 and outer 5 change, outwards lift angle bead 7, make buckle 701 break away from with draw-in groove 203 and can change.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A lithium battery with an impact protection structure comprises a top cover (1) and a shell (2), wherein the top cover (1) is fixedly bonded with the shell (2); the method is characterized in that: fixed slot (201) have been seted up to the side of top cap (1), threaded hole (202) have been seted up to the inside of fixed slot (201), protective structure has been cup jointed to the inside fixation of fixed slot (201), protective structure's size and thickness respectively with the size and the degree of depth looks adaptation of fixed slot (201), protective structure includes inlayer (3), middle level (4) and skin (5), the material of inlayer (3) is soft sponge board, the material of middle level (4) is the honeycomb panel, the orientation of the inside honeycomb of middle level (4) is the direction towards top cap (1) inside, the material of skin (5) is fire prevention cloth.

2. A lithium battery having an impact protection structure as claimed in claim 1, wherein: draw-in groove (203) have all been seted up to the side of the corner of top cap (1) and shell (2), the fixed joint of the corner of top cap (1) and shell (2) has corner bead (7), the quantity of corner bead (7) is the same with the corner total number of top cap (1) and shell (2), the medial surface of corner bead (7) is equipped with buckle (701), every buckle (701) quantity of corner bead (7) inside is three, three the position of buckle (701) respectively with draw-in groove (203) position looks adaptation of every corner, buckle (701) and the fixed joint of draw-in groove (203).

3. A lithium battery having an impact protection structure as claimed in claim 1, wherein: the number of the fixing grooves (201) is the same as the number of the side faces of the top cover (1) and the shell (2) and corresponds to the side faces of the top cover (1) and the shell (2) one by one, and the depth of the fixing grooves (201) is smaller than the wall thickness of the top cover (1).

4. A lithium battery having an impact protection structure as claimed in claim 1, wherein: the threaded holes (202) are located at the corners inside the fixing grooves (201), the number of the threaded holes (202) inside each fixing groove (201) is four, and the four threaded holes (202) are uniformly distributed inside the fixing grooves (201).

5. A lithium battery having an impact protection structure as claimed in claim 1, wherein: the inner layer (3), the middle layer (4) and the outer layer (5) are fixedly bonded, and the thickness of the middle layer (4) is larger than that of the inner layer (3) and that of the outer layer (5).

6. A lithium battery having an impact protection structure as claimed in claim 1, wherein: the side surface of the inner layer (3) is provided with a first through hole (301), the side surface of the middle layer (4) is provided with a second through hole (401), and the side surface of the outer layer (5) is provided with a third through hole (501).

7. A lithium battery having an impact protection structure as claimed in claim 6, characterized in that: the number and the positions of the first through holes (301), the second through holes (401) and the threaded holes (202) are respectively the same, the cross section of the third through holes (501) is T-shaped, the number and the positions of the third through holes (501) are respectively matched with the number and the positions of the threaded holes (202), and screws (6) are sleeved on the internal threads of the third through holes (501), the second through holes (401), the first through holes (301) and the threaded holes (202).

8. A lithium battery having an impact protection structure as claimed in claim 2, characterized in that: the number of the card slots (203) is twenty-four, and each three card slots (203) of the twenty-four are divided into eight groups.

9. A lithium battery having an impact protection structure as claimed in claim 2, characterized in that: the cross-sectional shape of draw-in groove (203) is the L font, the cross-sectional shape of buckle (701) is the T font, the tip of buckle (701) extends to the inside of draw-in groove (203).