CN211789128U - Lithium battery pack shell with protection function - Google Patents

Abstract

The utility model relates to the technical field of lithium batteries, in particular to a lithium battery pack casing with a protective function. Aiming at the problem that the lithium battery pack casing in the prior art lacks a protective device, the following scheme is proposed, which comprises a casing, four An anti-collision device, a top cover and a mounting plate. The four anti-collision devices are respectively fixed on the outer walls of the four sides of the casing. The anti-collision device includes a fixed plate and an anti-collision plate. One side of the fixed plate is connected to the shell. The outer wall of the body is detachably connected, the other side of the fixing plate and the crash plate are fixedly connected by a plurality of first springs, the mounting plate is located inside the casing, and the bottom surface of the mounting plate is fixed with a plurality of first springs. Rubber mounts. The utility model has reasonable structure and ingenious design, not only has good protection effect, but also can unload the impact force when the lithium battery shell is hit, thereby avoiding damage to the lithium battery, on the other hand, it also enhances the heat dissipation performance of the shell, which is easy to use. Promote use.

Description

A lithium battery pack casing with protective function

technical field

The utility model relates to the field of lithium batteries, in particular to a lithium battery pack casing with a protective function.

Background technique

A lithium battery is a primary battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution. The difference between a lithium battery and a lithium ion battery is that the former is a primary battery and the latter is a rechargeable battery.

At present, lithium batteries are mostly used as power sources in new energy vehicles. Lithium battery packs are generally installed inside the lithium battery pack casing, but most of the lithium battery pack casings in the prior art are relatively simple in structure and lack protective devices. Therefore, this solution proposes a lithium battery pack casing with a protective function.

Utility model content

The utility model provides a lithium battery pack casing with a protective function, which solves the problem that the lithium battery pack casing in the prior art lacks a protective device.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

A lithium battery pack casing with protective function, comprising a casing, four anti-collision devices, a top cover and a mounting plate, the four anti-collision devices are respectively fixed on the four outer walls of the casing, and the four anti-collision devices are respectively fixed on the outer walls of the casing. It includes a fixed plate and an anti-collision plate, one side of the fixed plate is detachably connected to the outer wall of the housing, and the other side of the fixed plate and the anti-collision plate are fixedly connected by a plurality of first springs, so the The mounting plate is located inside the casing, a plurality of rubber supports are fixed on the bottom surface of the mounting plate, the bottoms of the plurality of rubber supports are all fixedly connected with the bottom inner wall of the casing, and a connection frame is fixed on the top of the casing for connecting Both sides of the frame are provided with card holes, the top cover is located on the top of the housing, and the top cover is provided on the outside of the connection frame, the inner walls of both sides of the top cover are provided with storage holes, two storage holes There are adjustment columns inside, one end of the two adjustment columns extends to the inside of the two clamping holes respectively, the outer walls on both sides of the top cover are provided with adjustment holes, and one end of the two adjustment columns respectively extends to two Adjust the inside of the hole.

Preferably, a spring block is fixed on the outside of the adjusting column, the spring block is located inside the receiving hole, a second spring is sleeved on the outside of the adjusting column, and the second spring is located on one side of the spring blocking block and the receiving hole Between the walls, one end of the adjusting post located inside the clamping hole is a right-angled triangle structure, and the other end of the adjusting post is fixed with a fixing ring.

Preferably, connecting grooves are formed on the outer walls of the four sides of the casing, and a connecting plate is fixed on one side of the four fixing plates away from the crash plate, the connecting plate and the connecting groove are T-shaped structures, and the connecting plates are clamped inside the connection slot.

Preferably, screws are threadedly connected to the inner walls of the four sides of the housing, and one end of the screws extends to the interior of the connecting plate and is fixedly connected to the connecting plate.

Preferably, a groove is formed at the bottom of the casing, and a plurality of cooling fins are fixed on the top of the groove.

Preferably, the bottoms of the four sides of the casing are fixed with a plurality of bottom plates, and the plurality of bottom plates are provided with fixing holes.

Preferably, buffer pads are fixed on the other outer walls of the four anti-collision plates, and the buffer pads are made of rubber.

The beneficial effects of the present utility model:

1. Through the cooperation between the buffer pad, the anti-collision plate, the first spring and the fixed plate, the force can be unloaded when the shell is hit, so as to avoid damage to the lithium battery. The coordination of the lithium battery pack can achieve the purpose of shock absorption.

2. The purpose of opening and closing the top cover is facilitated through the cooperation between the card hole, the adjustment column, the storage hole, the spring block, the second spring, the fixing block and the adjustment hole.

3. Through the cooperation between the groove and the heat sink, the heat dissipation area of the bottom surface of the casing is increased, so as to achieve a good heat dissipation effect.

The utility model has reasonable structure and ingenious design, not only has good protection effect, but also can unload the impact force when the lithium battery shell is hit, thereby avoiding damage to the lithium battery, on the other hand, it also enhances the heat dissipation performance of the shell, which is easy to use. Promote use.

Description of drawings

Figure 1 is a schematic structural diagram of the utility model.

Fig. 2 is the enlarged view of A of the utility model.

3 is a top view of the housing of the present invention.

Labels in the figure: 1 shell, 2 top cover, 3 adjusting column, 4 buffer pad, 5 bumper plate, 6 fixing plate, 7 connecting plate, 8 fixing hole, 9 bottom plate, 10 heat sink, 11 mounting plate, 12 rubber Support, 13 screws, 14 connecting frames, 15 clamping holes, 16 fixing rings, 17 receiving holes, 18 adjusting holes, 19 spring clips, 20 connecting grooves, 21 fixing holes.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

1-3, a lithium battery pack casing with protective function includes a casing 1, four anti-collision devices, a top cover 2 and a mounting plate 11, and the four anti-collision devices are respectively fixed on four sides of the casing 1 On the outer wall, the anti-collision device includes a fixed plate 6 and an anti-collision plate 5. One side of the fixed plate 6 is detachably connected to the outer wall of the housing 1, and the other side of the fixed plate 6 and the anti-collision plate 5 are connected by multiple passes. A first spring is fixedly connected, and a buffer pad 4 is fixed on the other outer wall of the four anti-collision plates 5. The buffer pad 4 is made of rubber. When the shell 1 is hit, the buffer pad 4 will first unload a part of the force Then the first spring will further unload the remaining force, thereby reducing the impact force on the lithium battery pack in the casing 1 .

The four outer walls of the housing 1 are provided with connecting grooves 20. The four fixing plates 6 are fixed with connecting plates 7 on one side away from the crash plate 5. The connecting plates 7 and the connecting grooves 20 are T-shaped structures, and the connecting plates 7 is clamped in the interior of the connecting groove 20, the four inner walls of the housing 1 are threadedly connected with screws 13, and one end of the screws 13 extends to the interior of the connecting plate 7 and is fixedly connected to the connecting plate 7, which is convenient for dismantling the anti-collision device. It reduces the difficulty of assembling the anti-collision device.

The mounting plate 11 is located inside the casing 1, and a plurality of rubber supports 12 are fixed on the bottom surface of the mounting plate 11. The bottoms of the plurality of rubber supports 12 are all fixedly connected to the bottom inner wall of the casing 1. The elasticity of the battery can play a role in shock absorption, so it can also slow down the impact of the lithium battery pack during the driving of the car.

The top of the housing 1 is fixed with a connecting frame 14, and both sides of the connecting frame 14 are provided with card holes 15. The top cover 2 is located on the top of the housing 1, and the top cover 2 is covered outside the connecting frame 14. The top cover 2 There are receiving holes 17 on the inner walls of the two sides, and two adjusting columns 3 are arranged inside the two receiving holes 17. The outer wall is provided with adjustment holes 18, one end of the two adjustment columns 3 respectively extends to the inside of the two adjustment holes 18, the outside of the adjustment columns 3 is fixed with a spring block 19, and the spring block 19 is located inside the receiving hole 17, The outside of the adjustment column 3 is sleeved with a second spring, the second spring is located between the spring block 19 and one side wall of the receiving hole 17, and one end of the adjustment column 3 located inside the clamping hole 15 is a right triangle structure, With the oblique side facing up, a fixing ring 16 is fixed on the other end of the adjusting column 3. When the top cover 2 needs to be opened, pull the two fixing rings 16 at the same time to pull out the two adjusting columns 3 to the outside of the two clamping holes 15, and then The top cover can be removed from the top of the housing 1, and when the top cover 2 is closed, since the end of the adjusting column 3 inside the clamping hole 15 is a right-angled triangle structure, the top cover 2 can be directly covered on the outside of the connecting frame 14. , so as to facilitate the disassembly and assembly of the top cover 2 .

The bottom of the casing 1 is provided with grooves, and the top of the grooves is fixed with a plurality of heat sinks 10. Through the cooperation between the grooves and the heat sinks 10, the heat dissipation area of the bottom surface of the casing 1 is increased, thereby achieving a good heat dissipation effect. .

The bottoms of the four sides of the casing 1 are fixed with a plurality of bottom plates 9, and the plurality of bottom plates 9 are provided with fixing holes 22. The bottom plate and the vehicle body can be fixed together by screws through the fixing holes 22, so as to facilitate the fixing of the casing 1 inside the hull.

Working principle: When the shell 1 is impacted, first the buffer pad 4 will absorb and unload a part of the impact force, and then the impact force will be transmitted to the first spring, and the second spring will further absorb and unload the impact force, thereby reducing the impact. The impact strength of the lithium battery inside the casing 1 ensures that the lithium battery inside the casing 1 is not damaged, and the rubber support 12 has good elasticity and can play a shock absorption role, so it can also slow down the lithium battery. When it is necessary to open the top cover 2 due to the impact received during the driving of the vehicle, pull the two fixing rings 16 at the same time to pull out the two adjusting posts 3 to the outside of the two clamping holes 15, and then the top cover can be removed from the The top of the housing 1 is removed, and when the top cover 2 is closed, since the end of the adjusting column 3 inside the clamping hole 15 is a right-angled triangle structure, the top cover 2 can be directly covered on the outside of the connecting frame 14, and the adjusting column is subject to the top. After being pressed, the cover 1 will shrink first, and finally be stuck into the interior of the clamping hole 15 , thereby fixing the top cover 2 on the top of the casing 1 .

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise" etc. Or the positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed in a specific orientation and operation, so it cannot be construed as a limitation to the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (7)

1. A lithium battery pack shell with a protection function comprises a shell (1), four anti-collision devices, a top cover (2) and a mounting plate (11), and is characterized in that the four anti-collision devices are respectively fixed on the outer walls of four sides of the shell (1), each anti-collision device comprises a fixing plate (6) and an anti-collision plate (5), one side of each fixing plate (6) is detachably connected with the outer wall of the shell (1), the other side of each fixing plate (6) is fixedly connected with the anti-collision plates (5) through a plurality of first springs, the mounting plate (11) is located inside the shell (1), a plurality of rubber supports (12) are fixed on the bottom surface of the mounting plate (11), the bottoms of the rubber supports (12) are fixedly connected with the inner wall of the bottom of the shell (1), a connecting frame (14) is fixed on the top of the shell (1), clamping holes (15) are formed in two sides of the connecting frame (14), top cap (2) are located the top of casing (1), and top cap (2) cover establishes the outside at connection frame (14), all seted up on the both sides inner wall of top cap (2) and accomodate hole (17), two insides of accomodating hole (17) all are equipped with regulation post (3), and the one end of two regulation posts (3) extends to the inside in two card holes (15) respectively, regulation hole (18) have all been seted up on the both sides outer wall of top cap (2), and the one end of two regulation posts (3) extends to the inside in two regulation holes (18) respectively.

2. The lithium battery pack shell with the protection function according to claim 1, wherein a spring clamping block (19) is fixed on the outside of the adjusting column (3), the spring clamping block (19) is located inside the accommodating hole (17), a second spring is sleeved on the outside of the adjusting column (3) and located between the spring clamping block (19) and one side wall of the accommodating hole (17), one end of the adjusting column (3) located inside the clamping hole (15) is in a right-angled triangle structure, and a fixing ring (16) is fixed on the other end of the adjusting column (3).

3. The lithium battery pack shell with the protection function according to claim 1, wherein the four outer walls of the shell (1) are respectively provided with a connecting groove (20), the side of the four fixing plates (6) far away from the anti-collision plate (5) is fixed with a connecting plate (7), the connecting plate (7) and the connecting groove (20) are both in a T-shaped structure, and the connecting plate (7) is clamped inside the connecting groove (20).

4. The lithium battery pack shell with the protection function according to claim 1, wherein screws (13) are screwed on the inner walls of the four sides of the shell (1), and one ends of the screws (13) extend to the inside of the connecting plates (7) to be fixedly connected with the connecting plates (7).

5. The lithium battery pack shell with the protection function according to claim 1, wherein a groove is formed at the bottom of the shell (1), and a plurality of cooling fins (10) are fixed at the top of the groove.

6. The lithium battery pack shell with the protection function according to claim 1, wherein a plurality of bottom plates (9) are fixed to the bottoms of four sides of the shell (1), and fixing holes (22) are formed in the plurality of bottom plates (9).

7. The lithium battery pack shell with the protection function according to claim 1, wherein the other side outer walls of the four anti-collision plates (5) are respectively fixed with a buffer pad (4), and the buffer pads (4) are made of rubber.

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