CN212366105U

CN212366105U - Traceable strengthen shockproof waterproof lithium battery shell structure

Info

Publication number: CN212366105U
Application number: CN202021318526.1U
Authority: CN
Inventors: 王金胜; 尹攀攀
Original assignee: Shaanxi Changfeng Power Co ltd
Current assignee: Shaanxi Changfeng Power Co ltd
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2021-01-15
Anticipated expiration: 2030-07-07

Abstract

The embodiment of the utility model discloses traceable strengthen shockproof waterproof lithium battery shell structure relates to lithium cell auxiliary assembly technical field. The method comprises the following steps: the inner wall of the upper shell is provided with a reinforcing rib; the inner wall of the lower shell is provided with a reinforcing rib; the upper shell and the lower shell are buckled with each other to form a hollow closed shell; a circle of convex spigot is circumferentially arranged on the buckling surface of the upper shell, and a circle of sealant flow channel is circumferentially arranged on the buckling surface of the lower shell; the circle of convex spigot of the upper shell is occluded with the circle of sealant flow channel of the lower shell; the edge of the occlusion part of the upper shell and the lower shell is fixed by a plurality of bolts. The utility model discloses at last casing and casing lock department down through be equipped with protruding tang and sealed glue runner respectively on upper and lower casing, with the sealed glue runner interlock of the round protruding tang of casing and the round of casing down on it, make whole battery package become an airtight whole to guarantee holistic waterproof performance.

Description

Traceable strengthen shockproof waterproof lithium battery shell structure

Technical Field

The utility model relates to a lithium cell auxiliary assembly technical field, concretely relates to waterproof lithium battery case structure takes precautions against earthquakes of enhancement that can trace back.

Background

The types of the explosion of the battery cell can be classified into an external short circuit, an internal short circuit, and an overcharge. The main reasons for explosion of lithium battery pack are as follows:

battery overheating: battery overheating can cause thermal runaway, which is most likely to occur during battery charging and discharging. Because the lithium ion battery has certain internal resistance, certain heat can be generated while outputting electric energy to provide power for pure electric power, so that the temperature of the lithium ion battery per se is increased, and the service life and safety of the whole battery can be influenced when the temperature of the lithium ion battery per se exceeds the normal working temperature range of the lithium ion battery per se;

external force impact: under the effect of external force, lithium battery monomer, group battery take place to warp, and self different positions take place relative displacement, lead to battery diaphragm to be torn and take place inside short circuit, easily fire electrolyte and reveal and finally initiate the fire. In the impact influence of external force, the puncture injury is the most serious, and the puncture injury can be directly inserted into a battery body to cause direct short circuit of a positive electrode and a negative electrode;

improper electricity utilization: when external short circuit occurs or water enters the battery to generate short circuit, and heat generated by the battery cannot be well dissipated, the temperature of the battery also rises along with the short circuit, and the high-temperature trigger thermal runaway occurs;

lithium battery packs are dangerous, but a lot of lithium battery pack products exist in our lives, and the number of dangerous events really generated is very small. The reason is that manufacturers perform enough safety protection measures in the production design process of the lithium battery pack to ensure the safety of the lithium battery pack and ensure the safety of consumers. In addition, once explosion occurs, the battery pack is not full of the burning surface, the data of the battery core and the data of the protection board cannot be distinguished, and the problem is inconvenient to search and analyze. A traceable lithium battery case structure for enhancing shock resistance and water resistance needs to be researched.

SUMMERY OF THE UTILITY MODEL

The utility model provides a traceable reinforced shockproof and waterproof lithium battery shell structure, which can solve the problems of insufficient strength and poor waterproof of the two-wheel vehicle lithium battery pack shell in the prior art, and the battery explosion phenomenon is easy to occur under the special conditions of internal short circuit and the like; the vibration of the vehicle body influences the performance of the battery in the running process; and battery pack data tracing.

The utility model provides a traceable strengthen shockproof waterproof lithium battery shell structure, include:

the inner wall of the upper shell is provided with a reinforcing rib;

the inner wall of the lower shell is provided with a reinforcing rib;

the upper shell and the lower shell are buckled with each other to form a hollow closed shell;

a circle of convex spigot is circumferentially arranged on the buckling surface of the upper shell, and a circle of sealant flow channel is circumferentially arranged on the buckling surface of the lower shell;

the circle of convex spigot of the upper shell is occluded with the circle of sealant flow channel of the lower shell; the edge of the occlusion part of the upper shell and the lower shell is fixed through a plurality of bolts.

Further, the inner side of the sealant flow channel of the lower shell is lower than the outer side.

Furthermore, the edges of the upper shell and the lower shell are provided with internal thread holes matched with the bolts.

Furthermore, a plug is arranged at the end part of each bolt.

Further, still be equipped with the socket on one side of casing down, be equipped with socket rubber lid on the socket.

Further, the inboard draw-in groove that is used for placing the traceable data plate of stainless steel that is equipped with of casing down.

Furthermore, foam is attached to the inner walls of the upper shell and the lower shell.

Further, the outer sides of the upper shell and the lower shell are both provided with handles.

Furthermore, baffles are arranged in the upper shell and the lower shell.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses a sealed runner interlock of round male end with the lower casing of last casing makes whole battery package become an airtight whole to guarantee holistic waterproof performance.

Additionally, the utility model discloses at last casing and casing inner wall down all be equipped with strengthening rib and baffle structure to paste the bubble cotton in the shell, consequently played jar-proof effect to a certain extent. And a stainless steel nameplate is arranged in the shell, thereby having the function of traceability. After the design treatment of the upper and lower shell sealing position, the screw hole position sealing and the socket position sealing, the overall waterproof performance of the shell is further ensured.

Drawings

FIG. 1 is a schematic structural diagram of a lithium battery case in an embodiment.

Fig. 2 is a plan view of a lower case in the lithium battery case according to the embodiment.

Fig. 3 is a sectional view of fig. 2A.

Fig. 4 is a sectional view of fig. 2B.

Fig. 5 is a bottom view of an upper case in a lithium battery case according to an embodiment.

Fig. 6 is a sectional view of fig. 5A.

Fig. 7 is a sectional view of fig. 5B.

Fig. 8 is a half sectional view of the right side view of fig. 1.

Fig. 9 is a partial view of the waterproof grooves of the upper case and the lower case of the lithium battery pack case structure in the embodiment.

Fig. 10 is a half sectional view of the top view of fig. 1.

Fig. 11 is a sectional view of the upper half of fig. 1.

Fig. 12 is a partial view of the traceable nameplate of the lithium battery cell casing structure of fig. 11.

Description of reference numerals: 1: a protection plate; 2: an electric core; 3: a battery cell bracket; 4: a nickel sheet; 5: a PC sheet; 6: a bolt; 7: a socket rubber cover; 8: a handle; 9: a product label; 10: a product two-dimension code; 11: a stainless steel metal nameplate; 12: a plug; 13: a lower housing; 14: an upper housing; 15: a baffle plate; 16: reinforcing ribs; 17, a line hooking groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and 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.

The specific implementation mode adopts the following technical scheme: the battery comprises a protection plate 1, a battery core 2, a battery core bracket 3, a nickel sheet 4, a PC sheet 5, a bolt 6, a socket rubber cover 7, a handle 8, a product label 9, a product two-dimensional code 10, a stainless steel metal nameplate 11, a plug 12, a lower shell 13 and an upper shell 14; go up casing 13 and the shell of casing 14 constitution battery module down, upward be equipped with handle 8 on casing 13 and the casing 14 down, the battery module passes through three-dimensional position fixed mounting inside last casing 13 and casing 14 down, electric core 2 is arranged in electric core support 3 internal fixation, all electric cores 2 in with electric core support 3 are connected through nickel piece 4 and pencil and are constituteed the battery module, electric core support 3 is gone up the lower both sides and is all through protection cotton buffer protection, the PC piece 5 that is equipped with insulation protection is all pasted to electric core support 3 front and back side, PC piece 5's surface is arranged in to protection shield 1, electric core support 3 wholly arranges in casing 13 down, upward be equipped with a plurality of end caps 12 on casing 14 and casing 13 down.

A traceable reinforced shockproof and waterproof lithium battery shell structure is shown in figures 1-12 and comprises:

an upper shell 14, the inner wall of which is provided with a reinforcing rib 16;

a lower shell 13, the inner wall of which is provided with a reinforcing rib 16;

the upper shell 14 and the lower shell 13 are mutually buckled to form a hollow closed shell; a circle of convex spigot is circumferentially arranged on the buckling surface of the upper shell 14, and a circle of sealant flow channel is circumferentially arranged on the buckling surface of the lower shell 13;

a circle of convex rabbets of the upper shell 14 are occluded with a circle of sealant flow channels of the lower shell 13.

Therefore, the waterproof grooves at the periphery of the upper shell and the lower shell are designed as sealant flow passages,

meanwhile, the inner side of the sealant flow channel of the lower shell 13 is lower than the outer side, so that the inner part of the sealant flow channel of the lower shell is lower than the outer part to prevent the sealant from flowing outwards, the convex spigot of the upper shell corresponds to the convex spigot of the upper shell, the lower shell is arranged after the module is assembled, a certain amount of sealant is injected into the lower shell by using an automatic sealant injecting machine, after the upper shell is arranged, the convex spigot of the upper shell is occluded with the sealant flow channel of the lower shell, and the sealant flow channel has a certain gap for storing the.

In order to further enable the convex seam allowance of the upper shell and the sealing glue flow channel of the lower shell to be occluded more tightly, the edges of the occluded part of the upper shell 14 and the lower shell 13 are fixed through a plurality of bolts 6, and corresponding inner thread holes matched with each bolt 6 are formed in the edges of the upper shell 14 and the lower shell 13. Therefore, the convex spigot of the upper shell is occluded with the sealant flow channel of the lower shell, and the sealant flow channel has a certain gap for storing sealant, and then is fixed by screws. In addition, a plug 12 is provided at the end of each bolt 6 to prevent water from seeping into the bolt and into the housing.

Still be equipped with the socket through on one side of casing 13 down, be equipped with socket rubber lid 7 on the socket, installation rubber lid on the socket prevents that water from entering from the jack, and the inside socket position of casing is beaten simultaneously and is glued, prevents that socket fixation position from intaking.

The utility model discloses, at the internal portion of last casing and inferior valve do many strengthening ribs to and all be equipped with the plate washer 15 in last casing 14 and lower casing 13, not only can the position of spacing module, can strengthen the intensity of casing moreover, paste the bubble cotton on the inner wall of last casing 14 and lower casing 13 simultaneously, especially paste the bubble cotton with battery module contact surface, play absorbing effect.

A clamping groove for placing the stainless steel traceable nameplate 11 is arranged at one corner position on the inner side of the lower shell 13 and used for installing the stainless steel nameplate.

The utility model discloses at last casing and casing lock department down through be equipped with protruding tang and sealed glue runner respectively on upper and lower casing, with the sealed glue runner interlock of the round protruding tang of casing and the round of casing down on it, make whole battery package become an airtight whole to guarantee holistic waterproof performance.

The utility model discloses at last casing and casing inner wall down all be equipped with strengthening rib and baffle structure to paste the bubble cotton in the casing, consequently played jar-proof effect to a certain extent. And a stainless steel nameplate is arranged in the shell, thereby having the function of traceability. After the design treatment of the upper and lower shell sealing position, the screw hole position sealing and the socket position sealing, the overall waterproof performance of the shell is further ensured.

The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the embodiments, and any changes that can be considered by those skilled in the art shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a traceable strengthen shockproof waterproof lithium battery case structure which characterized in that includes:

an upper shell (14), the inner wall of which is provided with a reinforcing rib (16);

a lower shell (13), the inner wall of which is provided with a reinforcing rib (16);

the upper shell (14) and the lower shell (13) are mutually buckled to form a hollow closed shell;

a circle of convex spigot is circumferentially arranged on the buckling surface of the upper shell (14), and a circle of sealant flow channel is circumferentially arranged on the buckling surface of the lower shell (13);

a circle of convex spigot of the upper shell (14) is occluded with a circle of sealant flow channel of the lower shell (13); the edge of the occlusion part of the upper shell (14) and the lower shell (13) is fixed by a plurality of bolts (6).

2. The lithium battery casing structure with traceability, shock-proof and waterproof features as claimed in claim 1, wherein the sealant flow channel of the lower case (13) is lower inside than outside.

3. The traceable, shock-proof and waterproof lithium battery shell structure as claimed in claim 1, wherein the edges of the upper shell (14) and the lower shell (13) are provided with internal threaded holes matched with each bolt (6).

4. The traceable, shock-proof and water-proof lithium battery case structure according to claim 1, wherein a plug (12) is provided at the end of each bolt (6).

5. The lithium battery casing structure with the traceable, reinforced shock and water resistance function as claimed in claim 1, wherein a socket is further arranged on one side of the lower shell (13), and a socket rubber cover (7) is arranged on the socket.

6. The traceable, reinforced, shockproof and waterproof lithium battery shell structure as claimed in claim 1, wherein a slot for placing the stainless steel traceable nameplate (11) is formed in the inner side of the lower shell (13).

7. The lithium battery casing structure with the traceable, reinforced shock-proof and waterproof functions as claimed in claim 1, wherein the inner walls of the upper casing (14) and the lower casing (13) are pasted with foam.

8. The lithium battery casing structure with the traceable, reinforced shock-proof and waterproof functions as claimed in claim 1, wherein the handles (8) are arranged on the outer sides of the upper casing (14) and the lower casing (13).

9. The lithium battery casing structure with traceability, shock-proof and water-proof functions as claimed in claim 1, wherein a baffle (15) is disposed in each of the upper casing (14) and the lower casing (13).