CN220914338U

CN220914338U - Combined lithium battery device

Info

Publication number: CN220914338U
Application number: CN202322054490.0U
Authority: CN
Inventors: 孙梅娟
Original assignee: Hefei Guoxuan High Tech Power Energy Co Ltd
Current assignee: Hefei Gotion High Tech Power Energy Co Ltd
Priority date: 2023-07-31
Filing date: 2023-07-31
Publication date: 2024-05-07
Anticipated expiration: 2033-07-31

Abstract

The utility model discloses a combined lithium battery device, which belongs to the technical field of battery packs and comprises an outer shell, an inner shell and a protective cover plate, wherein the inner shell is arranged in the outer shell, the upper end of the outer shell is provided with the protective cover plate, wherein the outer shell is uniformly provided with protective holes, the inner shell is uniformly provided with radiating holes, the protective holes and the radiating holes are mutually inclined, a placing cavity is uniformly arranged in the inner shell, a battery block is slidably clamped in the placing cavity, a buffer pad is fixedly arranged in the placing cavity and between the inner shell and the outer shell, the upper end of the outer shell is clamped with the protective cover plate, and the protective cover plate is provided with a fan.

Description

Combined lithium battery device

Technical Field

The utility model belongs to the technical field of battery packs, and particularly relates to a combined lithium battery device.

Background

The lithium battery has the characteristics of high energy, miniaturization and light weight, can be manufactured into different shapes and capacities according to the needs of some products, and the power battery often needs a plurality of assemblies together to meet the set electric quantity requirement, and the assembly needs a shell for bearing. The existing device can realize convenient assembly and disassembly of batteries, but the tightness of the device is too high, the arrangement among the batteries is too tight, the batteries are easy to produce heat accumulation in the working process, the operation of the batteries is influenced, and the service life of the batteries is reduced.

In the prior art, heat is dissipated to the battery pack through a hole and a lead-in fan, for example, patent CN107464905A discloses a battery box with heat dissipation function, which comprises a battery box body, the battery box is internal to be equipped with the battery module that is used for adorning the battery, the lateral wall of battery box body one side is equipped with the driving box, still be equipped with a plurality of through-holes on the lateral wall that the battery box body is connected with the driving box, all be equipped with the fan in the through-hole, be equipped with driving motor in the driving box, be equipped with a plurality of pivots on the driving motor, still be equipped with the baffle that is used for adiabatic in the driving box, be equipped with a plurality of spacing holes on the baffle, the pivot passes spacing hole and rotates with the fan to be connected, driving motor is connected with the battery module electricity, be equipped with a plurality of louvres on the lateral wall of the opposite side of battery box body. Patent CN213124644U discloses a heat dissipation battery box, the box one side opening setting of this heat dissipation battery box, be formed with in it and hold the chamber for accept the installation battery, hold and be equipped with on the chamber inside wall and be used for taking away the internal thermal heat dissipation mechanism of box, heat dissipation mechanism is including the external air intake of intercommunication that sets up in box one side, and locate the air exit of the relative air intake side in the box, one side that is close to the air exit in the box is fixed with the exhaust fan, can carry out real-time heat dissipation in electric motor car battery box at electric motor car operation or charging process, guarantee the circulation of the interior air of battery box. Patent CN113097621a discloses a heat dissipation type battery pack and a heat dissipation type battery pack group, the heat dissipation type battery pack includes: the device comprises a mounting seat and a plurality of batteries, wherein a mounting cavity is formed in the mounting seat, an air inlet and an air outlet which are communicated into the mounting cavity are formed in the side wall of the mounting seat, and the air inlet and the air outlet are arranged at intervals; the plurality of batteries are sequentially arranged in the mounting cavity along the air supply direction, the plate surface of each battery faces the air inlet, and the plate surface of each battery is obliquely arranged relative to the air supply direction. Through setting up the face relative air supply direction slope setting of a plurality of batteries, change the motion track of wind in the battery package from traditional vertical direction into the incline direction that sets up along the face of battery, change the length of wind path by original width of battery package into width divided by sin (sine) inclination, be equivalent to the wind path by original right angle limit become the hypotenuse to make the motion stroke of wind in the battery package lengthen, increased the heat dispersion of battery package itself, improved the heat dispersion of battery package.

The above patent radiates heat to the battery pack through the opening and the introduction fan, and although the heat radiation performance of the battery can be improved, the rate of entering water vapor of the battery is increased, so that the waterproof performance of the battery is poor.

Disclosure of Invention

1. Problems to be solved

Aiming at the problem of poor waterproof performance of the existing lithium battery, the utility model provides a combined lithium battery device which can improve the waterproof performance while guaranteeing the heat dissipation performance of the battery.

2. Technical proposal

In order to solve the problems, the utility model adopts the following technical scheme.

The utility model provides a combination formula lithium cell device, includes shell, inner shell and protection apron, offer at least one protection hole on the shell, offer the louvre corresponding with the protection hole on the inner shell, protection hole and louvre mutual tilt.

That is, in one possible implementation manner, the protection hole is inclined downward from outside to inside, the heat dissipation Kong Zina is inclined downward outward, and the protection hole and the heat dissipation hole form a V shape with an included angle of 20 ° to 60 °.

In a possible implementation manner, the protection Kong Zina is inclined downward outwards, the heat dissipation holes are inclined downward from outside to inside, and the protection holes and the heat dissipation holes are in an inverted V shape with an included angle of 20-60 degrees.

In order to improve the heat radiation performance of the lithium battery, the inner shell is provided with the heat radiation holes, but the water vapor can enter the shell from the heat radiation holes, so that the waterproof performance of the battery is poor, and the safety performance of the battery is influenced. The shape of the protection hole and the heat dissipation hole can be strip-shaped or round.

In the in-service use, the protection hole is preferably inclined downwards from outside to inside, and heat dissipation Kong Zina is outwards inclined downwards, and protection hole and heat dissipation hole are the V font structure that the contained angle is 20 ~ 60, prevent inside steam entering casing, and this contained angle is too big then the water proof effects is poor, is difficult to prevent steam entering, and the too little then inside heat exhaust rate of restriction device of angle.

The inside of inner shell has been seted up and has been kept apart the frame, keeps apart and forms the chamber of placing that is used for holding the battery piece between the frame, battery piece slip joint is in placing the chamber, it is equipped with waterproof net to place the intracavity, waterproof net slip joint is in placing the chamber, waterproof net and the inner surface of placing the chamber laminating each other to be convenient for improve the water-proof effects of device.

The upper end of shell is equipped with the protection apron, protection apron and shell joint are provided with the protection frame all around to the protection apron, the last wind-driving hole that has seted up of protection apron, be equipped with the back plate that is connected with the protection apron in the wind-driving hole, install the fan on the back plate for dispel the heat fast to the upper end of battery piece. The protection apron back is equipped with the fixed bolster for improve the installation fixed effect of device to the battery piece, the fixed bolster includes well pad and end pad, well pad locates the backup pad bottom surface, the four corners of protection apron are located to the end pad.

For improving the shock attenuation protection effect of device, place the waterproof net outside in chamber and be equipped with the blotter, also be equipped with the blotter between inner shell and the shell, through the buffer structure who uses double-deck blotter, can effectively improve the shock attenuation effect of device, improve security performance.

The device of the utility model can be applied to the battery fields of cylinders, square shells, soft packages and the like.

3. Advantageous effects

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

(1) According to the utility model, the radiating holes and the protection holes which are V-shaped are formed in the shell, so that the waterproof performance of the device is improved;

(2) According to the utility model, the batteries are separated, the heat dissipation holes are formed in the inner shell, and the fan is arranged above the device, so that the heat dissipation effect is improved;

(3) The buffer cushion is arranged between the inner shell and the outer shell in the placing cavity, and the buffer structure of the double-layer buffer cushion is used, so that the shock absorption buffer effect of the device is improved, and the protection effect of the device on a battery is improved.

Drawings

The technical solution of the present utility model will be described in further detail below with reference to the accompanying drawings and examples, but it should be understood that these drawings are designed for the purpose of illustration only and thus are not limiting the scope of the present utility model. Moreover, unless specifically indicated otherwise, the drawings are intended to conceptually illustrate the structural configurations described herein and are not necessarily drawn to scale.

FIG. 1 is a schematic diagram of the structure of an embodiment 1 of the present utility model;

FIG. 2 is a schematic view of the inner shell of embodiment 1 of the present utility model;

FIG. 3 is a schematic diagram showing the main sectional structure of embodiment 1 of the present utility model;

FIG. 4 is a schematic view of a protective cover plate according to embodiment 1 of the present utility model;

FIG. 5 is a schematic diagram showing the relative positions of the protection hole and the heat dissipation hole according to embodiment 3 of the present utility model;

FIG. 6 is a schematic diagram showing the relative positions of the protection hole and the heat dissipation hole according to embodiment 4 of the present utility model;

In the figure: 1. a housing; 110. a protection hole;

2. An inner case; 210. a heat radiation hole; 220. an isolation frame; 230. a placement cavity; 240. a cushion pad;

3. A protective cover plate; 310. a wind-driving hole; 320. a blower; 330. a support plate; 340. a fixing pad; 341. a middle pad; 342. an end pad; 350. and a protective frame.

Detailed Description

The following detailed description and example embodiments of the utility model may be better understood when read in conjunction with the accompanying drawings, in which elements and features of the utility model are identified by reference numerals.

As shown in fig. 1-4, a combined lithium battery device comprises an outer shell 1, an inner shell 2 and a protective cover plate 3, wherein the outer shell 1 is sleeved outside the inner shell 2, a buffer pad 240 is arranged between the inner shell 2 and the outer shell 1, a protective hole 110 is formed in the outer shell 1, a heat dissipation hole 210 corresponding to the protective hole 110 is formed in the inner shell 2, and the protective hole 110 and the heat dissipation hole 210 are mutually inclined.

The inside of inner shell 2 has been seted up and has been kept apart the frame 220, keeps apart and forms between the frame 220 and place the chamber 230, battery piece slip joint is in placing the chamber 230, it is equipped with waterproof net to place the intracavity 230, waterproof net slip joint is in placing the chamber 230, waterproof net and the internal surface of placing the chamber 230 laminating each other, it still is equipped with blotter 240 to place the intracavity 230, blotter 240 is located waterproof net outside.

The protection cover plate 3 is clamped with the upper end of the shell 1, a protection frame 350 is arranged around the protection cover plate 3, a wind-driving hole 310 is formed in the protection cover plate 3, a supporting plate 330 connected with the protection cover plate 3 is arranged in the wind-driving hole 310, and a fan 320 is arranged on the supporting plate 330. The back of the protective cover plate 3 is provided with a fixing pad 340, the fixing pad 340 comprises a middle pad 341 and end pads 342, the middle pad 341 is arranged on the bottom surface of the supporting plate 330, and the end pads 342 are arranged at four corners of the protective cover plate 3.

When the utility model is used, the battery blocks are slidably clamped in the placing cavity 230, and are electrically connected by using connecting wires, and then the protective cover plate 3 is fixedly arranged at the opening of the shell 1. The battery produces a large amount of heat during operation, separates the storage through the spacer frame 220 with the battery piece, can carry out quick evacuation with the heat that the battery piece produced and handle to offer the louvre 210 at its inner shell 2, improve the radiating effect and the working life of battery piece, further, be equipped with fan 320 on protection apron 3, utilize fan 320 to improve the device to the thermal evacuation efficiency in battery piece upper end.

However, the opening of the heat dissipation holes 210 may cause moisture to enter the housing and affect the safety performance of the battery, so the present utility model opens the protection holes 110 on the housing 1, and the heat dissipation holes 210 and the protection holes 110 are inclined with each other and have a V shape. Further, the protective frame 350 is disposed around the protective cover plate 3, the waterproof net is slidably clamped in the placement cavity 230, the waterproof net is mutually attached to the inner surface of the placement cavity 230, and the influence of external moisture on the battery block inside the device can be reduced through the double-layer hole structure of the protective frame 350, the waterproof net, the protective holes 110 and the heat dissipation holes 210.

Example 1

The shape of the protection hole 110 and the heat dissipation hole 210 is a strip shape, the protection hole 110 is inclined downward from outside to inside, the heat dissipation hole 210 is inclined downward from inside to outside, the protection hole 110 and the heat dissipation hole 210 are in a V shape with an included angle of 20 degrees, that is, the included angle between the protection hole 110 and the vertical direction is 10 degrees, and the included angle between the heat dissipation hole 210 and the vertical direction is 10 degrees.

Example 2

Embodiment 2 is different from embodiment 1 in that the protection hole 110 and the heat dissipation hole 210 have a V-shape with an included angle of 40 °, that is, the included angle between the protection hole 110 and the vertical direction is 20 °, and the included angle between the heat dissipation hole 210 and the vertical direction is 20 °.

Example 3

Embodiment 3 is different from embodiment 1 in that the protection hole 110 and the heat dissipation hole 210 are rectangular, the protection hole 110 and the heat dissipation hole 210 are V-shaped with an included angle of 60 °, that is, the included angle between the protection hole 110 and the vertical direction is 30 °, the included angle between the heat dissipation hole 210 and the vertical direction is 30 °, and the relative positions of the protection hole 110 and the heat dissipation hole 210 are shown in fig. 5.

Example 4

Embodiment 4 is different from embodiment 3 in that the protection hole 110 is inclined downward from inside to outside, the heat dissipation hole 210 is inclined downward from outside to inside, the protection hole 110 and the heat dissipation hole 210 are in an inverted V shape with an included angle of 60 °, that is, the included angle between the protection hole 110 and the vertical direction is 30 °, the included angle between the heat dissipation hole 210 and the vertical direction is 30 °, and the relative positions of the protection hole 110 and the heat dissipation hole 210 are shown in fig. 6.

Example 5

Embodiment 5 is different from embodiment 1 in that the shape of the protection hole 110 and the heat dissipation hole 210 is circular, the protection hole 110 is inclined downward from outside to inside, the heat dissipation hole 210 is inclined downward from inside to outside, the protection hole 110 and the heat dissipation hole 210 are V-shaped with an angle of 20 °, that is, the angle between the protection hole 110 and the vertical direction is 10 °, and the angle between the heat dissipation hole 210 and the vertical direction is 10 °.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The utility model provides a combination formula lithium cell device, includes shell (1) and inner shell (2), be equipped with inner shell (2) in shell (1), its characterized in that, offer protection hole (110) on shell (1), offer on inner shell (2) with protection hole (110) corresponding louvre (210), protection hole (110) and louvre (210) mutual inclination.

2. The combined lithium battery device according to claim 1, wherein the protection hole (110) is inclined downward from outside to inside, the heat dissipation hole (210) is inclined downward from inside to outside, and the protection hole (110) and the heat dissipation hole (210) are V-shaped with an included angle of 20 ° to 60 °.

3. The combined lithium battery device according to claim 1, wherein the protection hole (110) is inclined downward from inside to outside, the heat dissipation hole (210) is inclined downward from outside to inside, and the protection hole (110) and the heat dissipation hole (210) are in an inverted V shape with an included angle of 20 ° to 60 °.

4. The combined lithium battery device according to claim 1, wherein the protection hole (110) and the heat dissipation hole (210) are elongated or circular in shape.

5. The combined lithium battery device according to claim 1, wherein the inner casing (2) is internally provided with a separation frame (220), and a placement cavity (230) for accommodating the battery block is formed between the separation frames (220).

6. The combined lithium battery device according to claim 5, wherein a waterproof net is provided in the placement chamber (230), and the waterproof net is attached to an inner surface of the placement chamber (230).

7. The combined lithium battery device according to claim 6, characterized in that a buffer pad (240) is provided between the inner shell (2) and the outer shell (1) and in the placement cavity (230).

8. The combined lithium battery device according to claim 1, further comprising a protective cover plate (3), wherein the protective cover plate (3) is clamped above the shell (1), a wind-driving hole (310) is formed in the protective cover plate (3), and a fan (320) is arranged in the wind-driving hole (310).

9. The combined lithium battery device according to claim 8, wherein a supporting plate (330) connected with the protective cover plate (3) is arranged on the protective cover plate (3), and the fan (320) is fixedly arranged on the supporting plate (330).

10. The combined lithium battery device according to claim 9, wherein a fixing pad (340) is arranged on the back surface of the protective cover plate (3), the fixing pad (340) comprises a middle pad (341) and end pads (342), the middle pad (341) is arranged on the bottom surface of the supporting plate (330), and the end pads (342) are arranged at four corners of the protective cover plate (3).