Lithium battery protection device

Abstract

The utility model relates to the technical field of lithium batteries, in particular to a lithium battery protection device which comprises a first fixing shell and a second fixing shell, fixing plates are arranged on the inner sides of the first fixing shell and the second fixing shell, a plurality of groups of positioning holes are formed in the surfaces of the two groups of fixing plates, and a battery body is arranged between the left group of positioning holes and the right group of positioning holes. Fixing holes are formed in the positions, among the four sets of positioning holes, of the surface of the fixing plate, a ventilation pipe is fixedly connected between the left and right sets of fixing holes, multiple sets of ventilation holes are formed in the surface of the ventilation pipe, and an insertion pipe is fixedly connected to the right end of the ventilation pipe; the right end of the rightmost ventilation pipe is connected with a fan, air is conveyed among a plurality of groups of battery bodies through the ventilation pipelines, the air circulation speed among the battery bodies is increased, the internal temperature of the battery bodies is effectively reduced, and the safety of the battery bodies in a high-temperature environment is effectively improved; and multiple groups of left and right ventilation pipes can be conveniently communicated, so that the use convenience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery technical field, concretely relates to a lithium battery protection device. BACKGROUND

[0002] With the rapid expansion of electronic products and electric vehicle market, lithium batteries are widely used in various mobile devices due to their high energy density, long life and other characteristics.

[0003] Among the announcement number CN222126743U discloses a kind of lithium battery protection device, is related to lithium battery protection technical field, including placing rack, placing hole is arranged in the placing rack, placing rack surface is close to the side of placing hole and is placed with support rod, and the side away from placing hole of placing rack is equipped with connecting hole, connecting ball is clamped in the connecting hole, the utility model places support rod on the surface of placing rack, uses support rod to lift lithium battery, avoids that lithium battery shakes in placing rack, then by connecting ball and connecting hole are mutually clamped to make adjacent placing rack connection as a whole, enhance overall strength, when single placing rack is damaged, another placing rack can support damaged placing rack, and lithium battery in the damaged placing rack is lifted by support rod, and support rod is separated every lithium battery, avoid mutual collision between lithium battery, strengthen the protection of lithium battery while guaranteeing that lithium battery can be located in original position when placing rack is damaged, cannot collide each other, reduce security risk.

[0004] Because the chemical activity of lithium ion is extremely high, especially when used with specific positive and negative materials, temperature management inside the battery becomes particularly important. During use, the batteries are arranged densely, and the inner side batteries have small heat dissipation space, which can easily cause the batteries to self-ignite in high temperature environment, and the safety is low.

[0005] Therefore, it is necessary to invent a lithium battery protection device to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of lithium battery protection device to solve the problem that battery arrangement is relatively dense in the prior art, the inner side battery heat dissipation space is small, thus in high temperature environment, it is easy to cause the battery to self-ignite, and the use safety is low.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a lithium battery protection device, including first fixed shell and second fixed shell, the inside of first fixed shell and second fixed shell all is provided with fixed plate, the surface of two groups fixed plate all is provided with multiple positioning hole, the left and right group positioning hole is provided with battery body between, the surface of fixed plate is located four positioning hole between the position and is provided with fixed hole, the left and right group fixed hole is fixedly connected with the ventilation pipe between, the surface of ventilation pipe is provided with multiple ventilation hole, the right end of ventilation pipe is fixedly connected with the plug -in pipe, the surface of plug -in pipe is fixedly connected with rubber pad.

[0008] By adopting the above technical scheme, the right end of the rightmost ventilation pipe is connected with the fan, the fan sends air to the multiple battery bodies through the ventilation pipe, improves the air flow speed between the battery bodies, effectively reduces the temperature inside the battery body, effectively improves the safety of the battery body in high temperature environment, and the plug-in pipe is plugged into the left end of the ventilation pipe, which facilitates the communication of the left and right multiple ventilation pipes and improves the use convenience.

[0009] Optionally, a plurality of first limiting holes are formed on the surface of the first fixed shell, a plurality of second limiting holes are formed on the surface of the second fixed shell, and the left and right ends of the ventilation pipe respectively penetrate the second limiting holes and the first limiting holes.

[0010] Optionally, a plurality of shock absorber springs are fixedly connected to the side surface of the fixed plate, and one end of each shock absorber spring away from the fixed plate is fixedly connected to the inner wall of the first fixed shell and the second fixed shell.

[0011] By adopting the above technical scheme, the shock absorber spring is used for damping the battery body, avoiding the battery body from being subjected to jolt for a long time, and further improving the safety of the battery.

[0012] Optionally, four protective sleeves are arranged on the side surface of the battery body, a protective rod is fixedly connected in the protective sleeve, and a connecting ball is fixedly connected to the left and right ends of the protective rod.

[0013] Optionally, four plug-in holes are formed on the surface of the fixed plate at the side of the positioning hole, and the connecting ball is plugged into the plug-in hole.

[0014] By adopting the above technical scheme, the protective rod and the protective sleeve cooperate to support and protect the surface of the battery body, and the protective sleeve is made of rubber material, avoiding abrasion on the surface of the battery body.

[0015] Optionally, a plurality of support pads are fixedly connected in the positioning hole.

[0016] By adopting the above technical scheme, the support pad is used for supporting the two ends of the battery body.

[0017] Optionally, the upper and lower surfaces of the first fixed shell are fixedly connected with first connecting blocks, the right end of the first connecting block is fixedly connected with a connecting rod, and the right end of the connecting rod is fixedly connected with a clamping block.

[0018] Optionally, the upper and lower surfaces of the second fixed shell are fixedly connected with second connecting blocks, the left surface of the second connecting block is provided with a connecting groove, and the surface of the second connecting block at the right end of the connecting groove is provided with a clamping groove.

[0019] By adopting the above technical scheme, the connecting rod is inserted into the inside of the connecting groove, and the clamping block is clamped in the inside of the clamping groove, so that the first fixed shell and the second fixed shell on the outside of the left and right groups of battery bodies are connected, and the left and right groups of battery bodies are connected as a whole.

[0020] In the above technical scheme, the technical effects and advantages of the utility model are provided:

[0021] 1. The right end of the rightmost ventilation pipe is connected with the fan, the fan sends air to the multiple groups of battery bodies through the ventilation pipe, the air circulation speed between the battery bodies is improved, the temperature inside the battery body is effectively reduced, the safety of the battery body in a high temperature environment is effectively improved, the plug-in pipe is plugged into the left end of the ventilation pipe, the left and right multiple ventilation pipes are conveniently communicated, and the use convenience is improved.

[0022] 2. The utility model is provided with multiple shock absorbing springs for shock absorption of the left and right fixed plates, thereby shock absorption of the battery body is realized, the battery body is prevented from being subjected to jolting for a long time, the battery use safety is further improved, the side surface of the battery body is supported by the protection rod and the protection sleeve, and the stability of the battery body is further improved. DETAILED DESCRIPTION

[0023] Figure 1 It is a whole structure schematic view of the utility model;

[0024] Figure 2 It is a battery body structure schematic view of the utility model;

[0025] Figure 3 It is a second fixed shell structure schematic view of the utility model;

[0026] Figure 4 It is a ventilation pipe and protection rod structure schematic view of the utility model;

[0027] Figure 5 It is a first fixed shell structure schematic view of the utility model;

[0028] Figure 6 It is a first connecting block and second connecting block structure schematic view of the utility model.

[0029] BRIEF DESCRIPTION OF DRAWINGS

[0030] 1, the first fixed shell; 11, the first limiting hole; 12, the first connecting block; 13, the connecting rod; 14, the clamping block; 2, the second fixed shell; 21, the second limiting hole; 22, the second connecting block; 23, the connecting groove; 24, the clamping groove; 3, the fixed plate; 31, the positioning hole; 32, the supporting pad; 33, the fixed hole; 34, the plug-in hole; 35, the shock absorbing spring; 4, the battery body; 5, the protective sleeve; 51, the protective rod; 52, the connecting ball; 6, the ventilation pipe; 61, the ventilation hole; 62, the plug-in pipe; 63, the rubber pad. DETAILED DESCRIPTION

[0031] In order to make the technical personnel in the art better understand the technical scheme of the utility model, the utility model will be introduced in further detail below in combination with the drawings.

[0032] The utility model provides a lithium battery protection device as Figures 1 to 5 As shown in a kind of lithium battery protection device, including first fixed shell 1 and second fixed shell 2, the inner side of first fixed shell 1 and second fixed shell 2 is provided with fixed plate 3, the surface of two groups of fixed plate 3 is provided with multiple positioning holes 31, multiple supporting pad 32 are fixedly connected in the inside of positioning hole 31, battery body 4 is arranged between left and right two groups of positioning holes 31, fixed hole 33 is set up in the position between four positioning holes 31 on the surface of fixed plate 3, ventilation pipe 6 is fixedly connected between left and right two groups of fixed holes 33, multiple ventilation holes 61 are set up on the surface of ventilation pipe 6, plug-in pipe 62 is fixedly connected to the right end of ventilation pipe 6, rubber pad 63 is fixedly connected to the surface of plug-in pipe 62, multiple first limiting holes 11 are set up on the surface of first fixed shell 1, multiple second limiting holes 21 are set up on the surface of second fixed shell 2, left and right ends of ventilation pipe 6 respectively penetrate second limiting hole 21 and first limiting hole 11, four protective sleeves 5 are arranged on the side surface of battery body 4, protective rod 51 is fixedly connected in the inside of protective sleeve 5.

[0033] Among them, left and right side second fixed shell 2, first fixed shell 1, fixed plate 3 and protective rod 51 form protection mechanism, battery body 4 is fixedly protected, after multiple protection mechanisms and battery body 4 are assembled together, the right end of leftmost ventilation pipe 6 is connected with fan air outlet, when fan delivers compressed air to the inside of ventilation pipe 6, and is spouted to outside through multiple ventilation holes 61 on the surface of ventilation pipe 6, improve the air flow speed of the inside of battery body 4, then the high temperature in the inside of battery body 4 is rapidly discharged to outside, then improve the safety of battery body 4 in the process of use.

[0034] In addition, in the process of assembling the protection mechanism and the battery body 4, the plug pipe 62 at the right end of the ventilation pipe 6 is inserted into the left end of the right ventilation pipe 6, and then the left and right groups of ventilation pipes 6 are spliced together, improving the installation and use convenience, and the rubber pad 63 improves the sealing between the plug pipe 62 and the ventilation pipe 6.

[0035] Referring to Figures 3 to 5 The side surface of the fixed plate 3 is fixedly connected with a plurality of damping springs 35, one end of each of the damping springs 35 away from the fixed plate 3 is fixedly connected with the inner wall of the first fixed shell 1 and the second fixed shell 2, the left and right ends of the protection rod 51 are fixedly connected with connecting balls 52, and four plug-in holes 34 are formed in the surface of the fixed plate 3 at positions on the side of the positioning hole 31. The connecting balls 52 are plugged into the plug-in holes 34.

[0036] Specifically, during use of the battery pack, the damping springs 35 reduce the vibration generated during movement of the equipment, avoiding jolting of the battery body 4, further protecting the battery body 4, and at the same time, during installation, the connecting balls 52 at the two ends of the protection rod 51 are respectively clamped in the plug-in holes 34 on the surfaces of the left and right fixed plates 3, fixing the two groups of left and right fixed plates 3 and supporting the surface of the battery body 4. The protection rod 51 cooperates with the protective sleeve 5 to support the battery body 4.

[0037] In addition, the inner diameters of the first limiting hole 11 and the second limiting hole 21 are greater than the outer diameter of the ventilation pipe 6, and during damping, the ventilation pipe 6 shakes inside the first limiting hole 11 and the second limiting hole 21, and a plurality of ventilation pipes 6 cooperate to limit the shaking amplitude of the fixed plate 3.

[0038] Referring to Figure 1 and Figure 6 The upper and lower surfaces of the first fixed shell 1 are fixedly connected with first connecting blocks 12, the right end of each of the first connecting blocks 12 is fixedly connected with a connecting rod 13, the right end of the connecting rod 13 is fixedly connected with a clamping block 14, the upper and lower surfaces of the second fixed shell 2 are fixedly connected with second connecting blocks 22, the left surface of each of the second connecting blocks 22 is provided with a connecting groove 23, and the surface of the second connecting block 22 at a position right of the connecting groove 23 is provided with a clamping groove 24.

[0039] It should be noted that when assembling the left and right groups of battery packs and protection mechanisms, the left first fixed shell 1 is attached to the left surface of the right second fixed shell 2, the connecting rod 13 is inserted into the connecting groove 23, and the clamping block 14 is clamped into the clamping groove 24, thereby connecting the left and right groups of protection mechanisms together and connecting a plurality of battery packs into a whole, further improving the stability of the battery body 4 and improving the safety of the battery body 4.

[0040] The utility model discloses a working principle: through the right end of the rightmost ventilation pipe 6 with fan connection, fan is delivered to the air between the multiple battery body 4 through ventilation pipe 6, improves the air flow speed between battery body 4, effectively reduces the temperature inside battery body 4, effectively improves the security of battery body 4 under high temperature environment, and the plug-in pipe 62 is inserted in the left end of ventilation pipe 6 simultaneously, and the left and right multiple ventilation pipes 6 are communicated conveniently, and the use convenience is improved, and the multiple damping springs 35 cooperate to the fixed plate 3 on the left and right sides and carry out the damping, and then the battery body 4 is damped, avoids battery body 4 to be jolted for a long time, further improves battery body 4 use security, and the protection rod 51 and the protection sleeve 5 cooperate to the side of battery body 4 and support, further improve the stability of battery body 4.

[0041] The basic principle, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the utility model and are not intended to limit the utility model. Without departing from the spirit and scope of the utility model, various changes and improvements can be made to the utility model, and these changes and improvements fall within the scope of the claimed utility model.

Claims

1. A lithium battery protection device comprising a first fixed casing (1) and a second fixed casing (2), characterized in that: The inner side of the first fixed shell (1) and the second fixed shell (2) is provided with a fixed plate (3), the surface of the two groups of fixed plates (3) is provided with a plurality of positioning holes (31), and the left and right groups of positioning holes (31) are provided with a battery body (4), the surface of the fixed plate (3) is provided with a fixed hole (33) between the four groups of positioning holes (31), and the left and right groups of fixed holes (33) are fixedly connected with a ventilation pipe (6), a plurality of ventilation holes (61) are formed in the surface of the ventilation pipe (6), the right end of the ventilation pipe (6) is fixedly connected with a plug-in pipe (62), and the surface of the plug-in pipe (62) is fixedly connected with a rubber pad (63).

2. A lithium battery protection device according to claim 1, characterized in that: The surface of the first fixed shell (1) is provided with a plurality of first limiting holes (11), the surface of the second fixed shell (2) is provided with a plurality of second limiting holes (21), and the left and right ends of the ventilation pipe (6) respectively penetrate the second limiting hole (21) and the first limiting hole (11).

3. A lithium battery protection device according to claim 1, characterized in that: The side of the fixed plate (3) is fixedly connected with a plurality of damping springs (35), and the ends, away from the fixed plate (3), of the damping springs (35) are fixedly connected with the inner walls of the first fixed shell (1) and the second fixed shell (2) respectively.

4. The lithium battery protection device of claim 1, wherein: The side of the battery body (4) is provided with four protection sleeves (5), the inside of the protection sleeve (5) is fixedly connected with a protection rod (51), and the left and right ends of the protection rod (51) are fixedly connected with a connecting ball (52).

5. A lithium battery protection device according to claim 4, characterized in that: The surface of the fixed plate (3) is provided with four plug-in holes (34) on the side of the positioning hole (31), and the connecting ball (52) is plugged into the plug-in hole (34).

6. A lithium battery protection device according to claim 1, characterized in that: The inside of the positioning hole (31) is fixedly connected with a plurality of supporting pads (32).

7. A lithium battery protection device according to claim 1, characterized in that: The upper and lower surfaces of the first fixed shell (1) are fixedly connected with a first connecting block (12), the right end of the first connecting block (12) is fixedly connected with a connecting rod (13), and the right end of the connecting rod (13) is fixedly connected with a clamping block (14).

8. A lithium battery protection device according to claim 7, characterized in that: The upper and lower surfaces of the second fixed shell (2) are fixedly connected with a second connecting block (22), the left surface of the second connecting block (22) is provided with a connecting groove (23), and the surface of the second connecting block (22) is provided with a clamping groove (24) at the right end of the connecting groove (23).

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