CN215771364U

CN215771364U - Explosion-proof structure of square battery

Info

Publication number: CN215771364U
Application number: CN202122375196.0U
Authority: CN
Inventors: 肖桂松; 刘大伟; 王威
Original assignee: Huizhou Anengji Electronic Technology Co ltd
Current assignee: Huizhou Anengji Electronic Technology Co ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-02-08
Anticipated expiration: 2031-09-29

Abstract

The utility model discloses a square battery explosion-proof structure, which comprises a machine body, a machine cover and a protective shell, and is characterized in that the top end of the machine body is provided with the machine cover, the bottom end of the machine cover is connected with the top end of the machine body in a buckling manner, the bottom end of the interior of the machine body is provided with a second anti-collision spongy cushion, the outer side of the second anti-collision spongy cushion is fixedly connected with the interior of the machine body, the inner layer of the second anti-collision spongy cushion is provided with a battery pack, the bottom end of the battery pack is connected with the second anti-collision spongy cushion in an embedded manner, the top end of the battery pack is provided with a first anti-collision spongy cushion, the inner side of the bottom end of the first anti-collision spongy cushion is connected with the battery pack in an embedded manner, the protective shell is arranged on two sides of the machine body, one side of the protective shell is fixedly connected with the machine body respectively, the upper end and the lower end of the protective shell are provided with round holes respectively, the piston is arranged in the round holes, the piston is movably connected with the inner wall of the round holes, one side of the piston is provided with a short rod, one end of the short rod is fixedly connected with one side of the piston. The utility model has simple structure and convenient operation.

Description

Explosion-proof structure of square battery

Technical Field

The utility model relates to the technical field of battery protection, in particular to an explosion-proof structure of a square battery.

Background

In recent years, electronic devices such as video cameras, mobile phones, and mobile computers have been made more compact, and as a driving power source for these electronic devices, nonaqueous electrolyte secondary batteries typified by various alkaline batteries and lithium ion secondary batteries having a high capacity are suitable, and it is desired that the above-mentioned water-consuming electrolyte secondary batteries be sealed batteries having a high energy density and excellent load characteristics. In addition, in a closed battery having a high energy density, abnormal gas is generated inside the battery by a chemical reaction due to a failure of a related device including a charger, overcharge, or other misuse, and the internal pressure of the battery is excessively high, so that an explosion accident of the battery occurs, and as a result, the device is damaged, and a person is injured. Therefore, when the internal pressure of the battery is excessively high, the gas is easily leaked, and the explosion accident of the battery is prevented.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an explosion-proof structure of a square battery, which aims to solve the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: an explosion-proof structure of a square battery comprises a machine body, a machine cover and a protective shell, and is characterized in that the machine cover is installed at the top end of the machine body, the bottom end of the machine cover is connected with the top end of the machine body in a buckling mode, a second anti-collision spongy cushion is installed at the bottom end inside the machine body, the outer side of the second anti-collision spongy cushion is fixedly connected with the inside of the machine body, a battery pack is installed on the inner layer of the second anti-collision spongy cushion, the bottom end of the battery pack is connected with the second anti-collision spongy cushion in an embedded mode, a first anti-collision spongy cushion is installed at the top end of the battery pack, the inner side of the bottom end of the first anti-collision spongy cushion is connected with the battery pack in an embedded mode, the protective shell is installed on two sides of the machine body, one side of the protective shell is fixedly connected with the machine body respectively, round holes are installed at the upper end and the lower end of the protective shell respectively, and a piston is installed inside the round holes, the piston is movably connected with the inner wall of the round hole, a short rod is installed on one side of the piston, one end of the short rod is fixedly connected with one side of the piston, a supporting block is installed on the other end of the short rod, one side of the supporting block is fixedly connected with the short rod, a spring is installed in the middle of the short rod, one end of the spring is fixedly connected with one side of the piston, and the other end of the spring is fixedly connected with the inner wall of the protective shell.

Furthermore, a power interface is arranged on one side of the top end of the cover and electrically connected with the battery pack.

Furthermore, a heat dissipation metal layer is arranged in the interlayer of the machine body.

Further, an airtight gasket is arranged at the intersection of the short rod and the protective shell.

Furthermore, the periphery of the inner wall of the machine body is respectively provided with a drying layer.

Compared with the prior art, the utility model has the following beneficial effects:

the first anti-collision spongy cushion and the second anti-collision spongy cushion respectively play a role in protecting the battery pack, and meanwhile the protective shell can have remarkable functions of protecting and resisting impact on the interior of the machine body. And the piston can play a role in weakening the buffering capacity when the internal air pressure is increased.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is an overall sectional view schematically showing an explosion-proof structure of a prismatic battery;

fig. 2 is a sectional view of a case of an explosion-proof structure of a prismatic battery.

Reference numerals:

1. a machine cover; 2. a first anti-collision spongy cushion; 3. a battery pack; 4. a resisting block; 5. a protective housing; 6. a second anti-collision spongy cushion; 7. a body; 8. a spring; 9. a short bar; 10. a circular hole; 11. a piston.

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 embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-2, a square battery explosion-proof structure according to an embodiment of the present invention includes a machine body 7, a machine cover 1 and a protective housing 5, and is characterized in that the machine cover 1 is installed at the top end of the machine body 7, the bottom end of the machine cover 1 is connected to the top end of the machine body 7 in a snap-fit manner, a second anti-collision foam rubber cushion 6 is installed at the bottom end of the interior of the machine body 7, the outer side of the second anti-collision foam rubber cushion 6 is fixedly connected to the interior of the machine body 7, a battery pack 3 is installed in the inner layer of the second anti-collision foam rubber cushion 6, the bottom end of the battery pack 3 is connected to the second anti-collision foam rubber cushion 6 in a snap-fit manner, a first anti-collision foam rubber cushion 2 is installed at the top end of the battery pack 3, the inner side of the first anti-collision foam rubber cushion 2 is connected to the battery pack 3 in a snap-fit manner, the protective housing 5 is installed at two sides of the machine body 7, and one side of the protective housing 5 is respectively fixedly connected to the machine body 7, round hole 10 is installed respectively at the upper and lower both ends of protecting sheathing 5, the internally mounted of round hole 10 has piston 11, piston 11 with the inner wall swing joint of round hole 10, quarter butt 9 is installed to one side of piston 11, quarter butt 9's one end with one side fixed connection of piston 11, butt 4 is installed to the other end of quarter butt 9, butt 4 one side with quarter butt 9 fixed connection, spring 8 is installed to the middle part of quarter butt 9, spring 8's one end with one side fixed connection of piston 11, spring 8's the other end with the inner wall fixed connection of protecting sheathing 5.

According to the scheme of the utility model, a power supply interface is arranged on one side of the top end of the machine cover 1 and is electrically connected with the battery pack 3, a heat dissipation metal layer is arranged in an interlayer of the machine body 7, an airtight gasket is arranged at the intersection of the short rod 9 and the protective shell 5, and a drying layer is respectively arranged on the periphery of the inner wall of the machine body 7.

The working principle is as follows: cover 1 can be followed 7 tops of organism and dismantled, maintains and changes the group battery 3 of inside, and first anticollision foam-rubber cushion 2 and second anticollision foam-rubber cushion 6 play collision avoidance's function to group battery 3 respectively simultaneously, and when the inside atmospheric pressure of organism 7 strengthened, piston 11 can be promoted all around to playing the effect that weakens the buffering.

In summary, the following steps: the first anti-collision spongy cushion and the second anti-collision spongy cushion respectively play a role in protecting the battery pack, and meanwhile the protective shell can have remarkable functions of protecting and resisting impact on the interior of the machine body. And the piston can play a role in weakening the buffering capacity when the internal air pressure is increased.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the utility model as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The square battery explosion-proof structure comprises a machine body (7), a machine cover (1) and a protective shell (5), and is characterized in that the machine cover (1) is installed at the top end of the machine body (7), the bottom end of the machine cover (1) is connected with the top end of the machine body (7) in a buckling mode, a second anti-collision sponge mat (6) is installed at the inner bottom end of the machine body (7), the outer side of the second anti-collision sponge mat (6) is fixedly connected with the inner portion of the machine body (7), a battery pack (3) is installed on the inner layer of the second anti-collision sponge mat (6), the bottom end of the battery pack (3) is connected with the second anti-collision sponge mat (6) in a tabling mode, a first anti-collision sponge mat (2) is installed at the top end of the battery pack (3), the inner side of the bottom end of the first anti-collision sponge mat (2) is connected with the tabling mode of the battery pack (3), the protective shell (5) is installed on two sides of the machine body (7), one side of the protective shell (5) is respectively fixedly connected with the machine body (7), the upper end and the lower end of the protective shell (5) are respectively provided with a round hole (10), a piston (11) is arranged in the round hole (10), the piston (11) is movably connected with the inner wall of the round hole (10), one side of the piston (11) is provided with a short rod (9), one end of the short rod (9) is fixedly connected with one side of the piston (11), the other end of the short rod (9) is provided with a resisting block (4), one side of the resisting block (4) is fixedly connected with the short rod (9), a spring (8) is arranged in the middle of the short rod (9), one end of the spring (8) is fixedly connected with one side of the piston (11), the other end of the spring (8) is fixedly connected with the inner wall of the protective shell (5).

2. The explosion-proof structure of the square battery according to claim 1, wherein a power interface is arranged at one side of the top end of the cover (1), and the power interface is electrically connected with the battery pack (3).

3. The explosion-proof structure of a prismatic battery according to claim 1, wherein a heat-dissipating metal layer is installed in the interlayer of the body (7).

4. A prismatic battery explosion-proof structure according to claim 1, wherein a gas-tight gasket is installed at the intersection of the short bar (9) and the protective housing (5).

5. The explosion-proof structure of the square battery according to claim 1, wherein the circumference of the inner wall of the body (7) is respectively provided with a drying layer.