CN112736351A

CN112736351A - Battery pack shell convenient to disassemble

Info

Publication number: CN112736351A
Application number: CN202011572298.5A
Authority: CN
Inventors: 张贺鹏
Original assignee: Ningbo Zhongpeng Lithium Energy Technology Co ltd
Current assignee: Ningbo Zhongpeng Lithium Energy Technology Co ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-04-30

Abstract

The invention discloses a conveniently-disassembled battery pack shell, relates to the technical field of battery packs, and aims to solve the problems that most of existing lithium battery packs in the prior art are packaged and protected by closed shells, the shells are very troublesome to disassemble during later maintenance, and the heat dissipation performance of the shells is poor. The both sides of casing and last casing all are provided with the casing margin down, and casing margin and lower casing and last casing fixed connection, the outside of casing margin is provided with back the shape board and detains, and returns the shape board and detain and pass through the draw-in groove with the casing margin and be connected, the inside of casing and last casing all is provided with the battery jar down and accomodates the groove, the inside of casing is provided with the battery package subassembly down, and the battery package subassembly accomodates the groove through the battery jar and is connected with casing and last casing down, the top of going up the casing is provided with heat dissipation aluminum plate, and heat dissipation aluminum plate passes through screw connection with last casing, heat dissipation aluminum plate's surface is provided with square heat dissipation hole groove.

Description

Battery pack shell convenient to disassemble

Technical Field

The invention relates to the technical field of battery packs, in particular to a battery pack shell convenient to disassemble.

Background

A lithium battery is a type of battery using a nonaqueous electrolyte solution, using lithium metal or a lithium alloy as a positive/negative electrode material. Lithium metal batteries were first proposed and studied by Gilbert n.lewis in 1912. In the 70 s of the 20 th century, m.s.whitetingham proposed and began to study lithium ion batteries. Because the chemical characteristics of lithium metal are very active, the requirements on the environment for processing, storing and using the lithium metal are very high. With the development of scientific technology, lithium batteries have become mainstream, and the lithium batteries can be roughly divided into two types: lithium metal batteries and lithium ion batteries. Lithium ion batteries do not contain lithium in the metallic state and are rechargeable. The fifth generation of rechargeable batteries, lithium metal batteries, was born in 1996, and the safety, specific capacity, self-discharge rate and cost performance of rechargeable batteries were all superior to those of lithium ion batteries. Due to its own high technical requirement limits, only a few countries of companies are producing such lithium metal batteries.

However, most of the existing lithium battery packs are packaged and protected by using closed shells, the shells are very troublesome to disassemble during later-period maintenance, and the heat dissipation performance of the shells is poor; therefore, the existing requirements are not met, and a battery pack shell convenient to disassemble is provided for the existing requirements.

Disclosure of Invention

The invention aims to provide a conveniently-detachable battery pack shell, which aims to solve the problems that most of the existing lithium battery packs proposed in the background art are packaged and protected by adopting a closed shell, the shell is very troublesome to detach during later maintenance, and the heat dissipation performance of the shell is poor.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a convenient battery package shell of dismantling, includes casing and last casing down, the both sides of casing and last casing all are provided with the casing margin down, and casing margin and casing and last casing fixed connection down, the outside of casing margin is provided with back the shape board and detains, and returns the shape board and detain and pass through the draw-in groove with casing margin and be connected, the inside of casing and last casing all is provided with the battery jar down and accomodates the groove, the inside of casing is provided with the battery package subassembly down, and the battery package subassembly accomodates the groove through the battery jar and is connected with casing and last casing down.

Preferably, the top of going up the casing is provided with heat dissipation aluminum plate, and heat dissipation aluminum plate passes through the screw connection with last casing, heat dissipation aluminum plate's surface is provided with square heat dissipation hole groove.

Preferably, the surface of the inner side of the upper shell is provided with a metal heat conduction strip, the metal heat conduction strip is connected with the upper shell through a clamping groove, and the metal heat conduction strip penetrates through the upper shell and extends to the bottom surface of the heat dissipation aluminum plate.

Preferably, both ends of the lower shell are provided with battery junction boxes, the battery junction boxes are connected with the lower shell through screws, both ends of the upper shell are provided with limiting box grooves, and the upper shell is connected with the battery junction boxes through the limiting box grooves.

Preferably, the outer side of the battery junction box is provided with an outer wiring groove, the inner side of the battery junction box is provided with an inner wiring groove, and the battery junction box is electrically connected with the battery pack assembly.

Preferably, the lower shell is attached to the upper shell, and horizontal stripes are arranged on the outer surface of the margins of the shell.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention is composed of a lower shell and an upper shell, the basic structure between the lower shell and the upper shell is the same, when in use, the lower shell is used as a bearing structure of a battery pack, then the upper shell is arranged above the lower shell, so as to wrap the battery pack assembly inside, thereby playing a role of anti-collision protection, when the upper shell and the lower shell are combined together, a clip can be inserted from any position at two ends of the margin of the shell, then the clip is stretched towards the other end, so that the clip is completely overlapped and combined with the margin of the shell, thus the connection and fixation between the lower shell and the upper shell can be completed, and the shell can be separated without tools during later-stage maintenance;

2. the radiating aluminum plate is positioned at the top of the upper shell, can guide heat generated by a battery in the shell during working outwards, the surface of the radiating aluminum plate is provided with the array-type square radiating hole grooves, the contact area of the radiating aluminum plate and air can be increased, the radiating is accelerated, the metal heat conducting strip is arranged on the inner side of the upper shell, after the upper shell and the lower shell are combined, the metal heat conducting strip can be attached to a battery pack, and the heat is guided into the radiating aluminum plate by the battery pack through the heat conductivity of copper metal.

Drawings

FIG. 1 is an overall front view of the present invention;

FIG. 2 is a schematic view of the overall exploded structure of the present invention;

fig. 3 is a schematic structural diagram of the upper housing of the present invention.

In the figure: 1. a lower housing; 2. an upper housing; 3. a battery junction box; 4. an outer wiring slot; 5. buckling a clip; 6. a heat dissipation aluminum plate; 7. a square heat dissipation hole groove; 8. a battery pack assembly; 9. a shell margin; 10. an inner wiring groove; 11. a limiting box groove; 12. a battery jar receiving slot; 13. a metal heat conducting strip.

Detailed Description

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

Referring to fig. 1-3, an embodiment of the present invention is shown: a battery pack shell convenient to disassemble comprises a lower shell 1 and an upper shell 2, wherein the basic structure between the lower shell 1 and the upper shell 2 is the same, the lower shell 1 is used as a bearing structure of a battery pack when in use, then the upper shell 2 is installed above the lower shell 1, so that an internal battery pack assembly 8 is wrapped, and an anti-collision protection effect is achieved, shell margins 9 are arranged on two sides of the lower shell 1 and the upper shell 2, the shell margins 9 are fixedly connected with the lower shell 1 and the upper shell 2, a clip 5 is arranged on the outer side of each shell margin 9, the clip 5 is connected with the shell margins 9 through clamping grooves, when the upper shell and the lower shell are combined together, the clip 5 can be inserted from any one of two ends of each shell margin 9, then the clip 5 is stretched towards the other end, so that the clip 5 is completely overlapped with the shell margins 9, so alright with accomplish down casing 1 and last casing 2 between be connected fixedly, need not during later stage overhaul with alright with separating the casing with the help of the instrument, casing 1 and last casing 2's inside all is provided with the battery jar and accomodates groove 12 down, and casing 1's inside is provided with battery package subassembly 8 down, and battery package subassembly 8 accomodates groove 12 through the battery jar and is connected with casing 1 and last casing 2 down.

Further, the top of going up casing 2 is provided with heat dissipation aluminum plate 6, and heat dissipation aluminum plate 6 passes through the screw connection with last casing 2, and heat dissipation aluminum plate 6's surface is provided with square heat dissipation hole groove 7, and heat dissipation aluminum plate 6 is located the top of casing 2, can outwards derive the heat that the inside battery during operation of casing produced, is provided with array's square heat dissipation hole groove 7 on its surface, can increase the area of contact of heat dissipation aluminum plate 6 and air and dispel the heat with higher speed.

Further, the surface of 2 inboards of last casing is provided with metal heat conduction strip 13, and metal heat conduction strip 13 passes through the draw-in groove with last casing 2 and is connected, and metal heat conduction strip 13 runs through the bottom surface that last casing 2 extended to heat dissipation aluminum plate 6, and metal heat conduction strip 13 is installed in the inboard of last casing 2, and after the casing combination, metal heat conduction strip 13 can laminate on the battery package, through utilizing copper metal's heat conductivity help battery package with the heat leading-in to heat dissipation aluminum plate 6.

Further, both ends of lower casing 1 all are provided with battery terminal box 3, and battery terminal box 3 passes through the screw connection with lower casing 1, and the both ends of going up casing 2 all are provided with spacing box groove 11, and go up casing 2 and be connected with battery terminal box 3 through spacing box groove 11, and gliding condition can prevent to appear at the casing both ends in spacing box groove 11.

Further, the outer side of the battery junction box 3 is provided with an outer wiring groove 4, the inner side of the battery junction box 3 is provided with an inner wiring groove 10, and the battery junction box 3 is electrically connected with the battery pack assembly 8 to achieve circuit connection.

Further, lower casing 1 is connected with the laminating of upper casing 2, and the surface of casing margining 9 is provided with horizontal stripe, the increase frictional resistance.

The working principle is as follows: during the use, with casing 1 down as the bearing structure of battery package, casing 1's both ends all are provided with battery terminal box 3 down, and the both ends of going up casing 2 all are provided with spacing box groove 11, need aim at battery terminal box 3 with spacing box groove 11 on the casing 2 during the installation and assemble, spacing box groove 11 can prevent that the gliding condition from appearing in casing both ends, and after the casing is put together under and, can insert clip 5 from the arbitrary one in both ends of casing margin 9, later on clip 5 to the other end tensile, make clip 5 complete and casing margin 9 overlap joint, like this alright accomplish down the connection between casing 1 and the last casing 2 fixed, need not during later stage overhaul with the help of the instrument alright with separating the casing.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a convenient battery package shell of dismantling, includes casing (1) and last casing (2) down, its characterized in that: casing (1) and the both sides of last casing (2) all are provided with casing margin (9) down, and casing margin (9) and casing (1) and last casing (2) fixed connection down, the outside of casing margin (9) is provided with time shape board and detains (5), and returns shape board and detain (5) and be connected through the draw-in groove with casing margin (9), the inside of casing (1) and last casing (2) all is provided with the battery jar down and accomodates groove (12), the inside of casing (1) is provided with battery package subassembly (8) down, and battery package subassembly (8) accomodate groove (12) through the battery jar and are connected with lower casing (1) and last casing (2).

2. A battery pack case for facilitating disassembly as claimed in claim 1, wherein: the top of going up casing (2) is provided with heat dissipation aluminum plate (6), and heat dissipation aluminum plate (6) passes through bolted connection with last casing (2), the surface of heat dissipation aluminum plate (6) is provided with square heat dissipation hole groove (7).

3. A battery pack case for facilitating disassembly as claimed in claim 2, wherein: go up the surface of casing (2) inboard and be provided with metal heat conduction strip (13), and metal heat conduction strip (13) are connected through the draw-in groove with last casing (2), metal heat conduction strip (13) run through last casing (2) and extend to heat dissipation aluminum plate's (6) bottom surface.

4. A battery pack case for facilitating disassembly as claimed in claim 1, wherein: both ends of the lower shell (1) are provided with battery junction boxes (3), the battery junction boxes (3) are connected with the lower shell (1) through screws, both ends of the upper shell (2) are provided with limiting box grooves (11), and the upper shell (2) is connected with the battery junction boxes (3) through the limiting box grooves (11).

5. The battery pack shell convenient to disassemble as claimed in claim 4, wherein: the battery pack is characterized in that an outer wiring groove (4) is formed in the outer side of the battery junction box (3), an inner wiring groove (10) is formed in the inner side of the battery junction box (3), and the battery junction box (3) is electrically connected with the battery pack assembly (8).

6. A battery pack case for facilitating disassembly as claimed in claim 1, wherein: the lower shell (1) is attached to the upper shell (2), and horizontal stripes are arranged on the outer surface of the shell margin (9).