Lithium battery protection device

Abstract

The utility model discloses a lithium battery protection device which comprises a shell, a wire hole and a heat dissipation hole are formed in the top of the shell, two transverse buffer mechanisms are symmetrically arranged in the shell, each transverse buffer mechanism comprises a fixing block, the fixing blocks are fixedly connected with a U-shaped pipe, an elastic column is arranged on the inner side of the U-shaped pipe in a sleeved mode, and the two ends of the elastic column are both arranged outside the U-shaped pipe. The distances between the two ends of the elastic columns and the U-shaped pipe are unequal, a battery sleeve is fixedly connected between the ends, away from the U-shaped pipe, of the two elastic columns, damping spring shock absorbers are fixedly connected between the ends, close to the U-shaped pipe, of the two elastic columns and the battery sleeve, a buffering rubber sleeve is fixedly arranged on the inner side of the battery sleeve, and a lithium battery is connected to the inner side of the buffering rubber sleeve in a sleeved mode. The utility model relates to the technical field of lithium battery protection, and solves the technical problems that a lithium battery protection device in the prior art directly contacts a pressure spring with a lithium battery, the damping effect is common, the spring needs to be frequently replaced, and the use is inconvenient.

Description

Technical Field

[0001] The utility model belongs to the field of lithium batteries and relates to protection technology, in particular to a lithium battery protection device. Background Art

[0002] A lithium battery is a battery that uses lithium ions to store and release energy through charge and discharge between positive and negative electrodes. It is one of the most commonly used rechargeable batteries and is widely used in mobile devices, electric vehicles and other fields. Due to the limitations of the properties of lithium batteries during use, lithium batteries need to be protected to prevent damage to the lithium battery caused by vehicle shaking during driving.

[0003] The Chinese patent authorization announcement number is CN212587594U, and the name is a lithium battery protection device, including a shell, a wire hole is opened on the right side of the shell, a slide groove is opened on the upper surface of the shell, a partition is slidably connected inside the slide groove, a buffer mechanism is fixedly installed on the inner side of the partition, and the buffer mechanism is also fixedly installed on the inner side wall of the shell away from the partition. The buffer mechanism includes a compression spring and a pressure plate, the pressure plate is fixedly installed on one end of the compression spring, and the side of the pressure plate away from the compression spring is in contact with the lithium battery, and the two compression springs are fixedly connected to the partition and the shell respectively.

[0004] The shortcomings of the above-mentioned existing technical solution are: although the above-mentioned solution can play a buffering and shock-absorbing role for the lithium battery, the shock-absorbing effect is general because the compression spring is only in direct contact with the lithium battery. In addition, the force generated by the vibration is completely absorbed by the compression spring, resulting in a large expansion and contraction range of the compression spring, causing the elastic force of the compression spring to decrease rapidly, requiring frequent replacement of the spring, which is inconvenient to use.

[0005] Therefore, the utility model provides a lithium battery protection device. Utility Model Content

[0006] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a lithium battery protection device, which solves the problem that the lithium battery protection device in the prior art directly contacts the compression spring with the lithium battery, has a general shock absorption effect, and requires frequent replacement of the spring, which causes inconvenience in use.

[0007] To achieve the above-mentioned purpose, the utility model proposes a lithium battery protection device, comprising a shell, a wire hole and a heat dissipation hole are opened on the top of the shell, two transverse buffer mechanisms are arranged in the shell, and the two transverse buffer mechanisms are symmetrically arranged on both sides of the shell; the transverse buffer mechanism comprises a fixed block, the fixed block is fixedly connected to the shell, a U-shaped tube is fixedly connected to the side of the fixed block, an elastic column is sleeved on the inner side of the U-shaped tube, both ends of the elastic column are outside the U-shaped tube, and the two ends of the elastic column are at different distances from the U-shaped tube, a battery sleeve is fixedly connected between the ends of the two elastic columns away from the U-shaped tube, and damping spring shock absorbers are fixedly connected between the ends of the two elastic columns close to the U-shaped tube and the battery sleeve, respectively, a buffer rubber sleeve is fixedly arranged on the inner side of the battery sleeve, and a lithium battery is sleeved on the inner side of the buffer rubber sleeve.

[0008] Preferably, a longitudinal buffer mechanism is provided under the battery sleeve, and the longitudinal buffer mechanism includes two oil pressure buffers arranged diagonally, the two oil pressure buffers are fixedly connected to the shell, the ends of the two oil pressure buffers are respectively rotatably connected with transmission shafts, a connecting rod is provided between the ends of the two transmission shafts away from the oil pressure buffers, the two transmission shafts are rotatably connected to the connecting rod, a support plate is fixedly connected to the connecting rod, and the support plate abuts against the lithium battery.

[0009] Preferably, rubber rings are fixedly provided on the two transmission shafts, and the rubber rings are rotatably connected to the connecting rods.

[0010] Preferably, the shell is provided with a top cover, and the top cover is detachably mounted on the top of the shell.

[0011] Preferably, a buffer pad is fixedly connected below the top cover, the buffer pad is arranged in the shell, and the buffer pad abuts against the lithium battery.

[0012] Preferably, a fixing ear is fixedly provided on the side of the shell, a front cover is provided on the shell, a screw is provided on the shell, and the front cover is threadedly connected to the screw.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model provides a U-shaped tube so that the elastic column is subjected to a certain friction force during movement, thereby absorbing a part of the kinetic energy, thereby reducing the pressure on the damping spring shock absorber, so that the shaking amplitude of the battery sleeve and the expansion and contraction amplitude of the damping spring shock absorber are reduced, the shock absorption effect is better, and the loss of the damping spring shock absorber is greatly reduced, thereby extending the service life of the damping spring shock absorber.

[0015] 2. The utility model provides two diagonally distributed oil pressure buffers, the ends of the two oil pressure buffers are respectively rotatably connected with the transmission shaft, a rubber ring is provided on the transmission shaft, a connecting rod is sleeved between the two rubber rings, the rubber ring is rotatably connected to the connecting rod, a support plate is fixedly connected to the connecting rod, the support plate abuts against the lithium battery, when longitudinal vibration occurs, the lithium battery is overloaded and pressed down, the connecting rod is forced to move downward, thereby driving the transmission shafts on both sides to move downward, thereby compressing the oil pressure buffers, slowing down the longitudinal vibration of the lithium battery, and enhancing the protection of the lithium battery. The rubber ring is provided to increase the friction force when the transmission shaft rotates, further improving the deceleration buffer effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an overall diagram of a lithium battery protection device of the utility model;

[0017] Figure 2 This is a cross-sectional view of a lithium battery protection device of the utility model;

[0018] Figure 3 It is a cross-sectional view of the U-shaped tube of the utility model;

[0019] Figure 4 It is a three-dimensional diagram of the buffer rubber sleeve of the utility model;

[0020] Figure 5 It is a schematic diagram of the longitudinal buffer mechanism of the utility model.

[0021] In the figure: 1. Shell; 2. Fixing ear; 3. Wire hole; 4. Heat dissipation hole; 5. Front cover; 6. Screw; 7. Fixing block; 8. U-shaped tube; 9. Elastic column; 10. Battery sleeve; 11. Damping spring shock absorber; 12. Buffer rubber sleeve; 13. Lithium battery; 14. Hydraulic buffer; 15. Transmission shaft; 16. Rubber ring; 17. Connecting rod; 18. Support plate; 19. Top cover; 20. Buffer pad. DETAILED DESCRIPTION

[0022] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-5As shown, a lithium battery 13 protection device comprises a shell 1, the shell 1 protects and installs the lithium battery 13, the top of the shell 1 is provided with a wire hole 3 and a heat dissipation hole 4, the side of the shell 1 is fixedly provided with a fixing ear 2, the fixing ear 2 is used to fix and install the shell 1, the shell 1 is provided with a front cover 5, the front cover 5 is used to open and close the shell 1, and it is convenient to operate the inside of the shell 1, the shell 1 is provided with a screw 6, and the front cover 5 is threadedly connected with the screw 6;

[0024] Two transverse buffer mechanisms are provided in the shell 1, and the two transverse buffer mechanisms are symmetrically arranged on both sides of the shell 1. The transverse buffer mechanism includes a fixed block 7, and the fixed block 7 is fixedly connected to the shell 1. A U-shaped tube 8 is fixedly connected to the side of the fixed block 7. An elastic column 9 is sleeved on the inner side of the U-shaped tube 8. The elastic column 9 has the functions of being bendable and anti-fracture. The elastic column 9 penetrates horizontally from one end of the U-shaped tube 8, and penetrates horizontally from the other end of the U-shaped tube 8 after bending and deformation. Both ends of the elastic column 9 are outside the U-shaped tube 8, and the distances between the two ends of the elastic column 9 and the U-shaped tube 8 are not the same. A battery sleeve 10 is fixedly connected between the ends of the two elastic columns 9 away from the U-shaped tube 8, and damping spring shock absorbers 11 are fixedly connected between the ends of the two elastic columns 9 close to the U-shaped tube 8 and the battery sleeve 10, respectively. A damping spring shock absorber 11 is fixedly connected to the inner side of the battery sleeve 10. A buffer rubber sleeve 12 is provided, and a lithium battery 13 is sleeved inside the buffer rubber sleeve 12; when the shell 1 shakes, the lithium battery 13 is caused to shake left and right, thereby driving the battery sleeve 10 to shake left and right. When the battery sleeve 10 hits one side, the end of the elastic column 9 on the same side away from the U-shaped tube 8 is forced to shrink toward the U-shaped tube 8, and the end close to the U-shaped tube 8 moves in the direction away from the U-shaped tube 8, thereby squeezing the damping spring shock absorber 11 to achieve the effect of buffering and shock absorption. Through the U-shaped tube 8, the elastic column 9 is subjected to a certain friction force during movement, thereby absorbing a part of the kinetic energy, thereby reducing the pressure on the damping spring shock absorber 11, so that the shaking amplitude of the battery sleeve 10 and the expansion and contraction amplitude of the damping spring shock absorber 11 are reduced, the shock absorption effect is better, and the loss of the damping spring shock absorber 11 is greatly reduced, thereby extending the service life of the damping spring shock absorber 11;

[0025] A longitudinal buffer mechanism is provided below the battery sleeve 10, and the longitudinal buffer mechanism includes two oil pressure buffers 14 arranged diagonally, and the two oil pressure buffers 14 are fixedly connected to the housing 1, and the ends of the two oil pressure buffers 14 are rotatably connected with the transmission shafts 15 respectively, and the ends of the two transmission shafts 15 away from the oil pressure buffers 14 are fixedly provided with rubber rings 16, and a connecting rod 17 is sleeved between the two rubber rings 16, and the rubber ring 16 is rotatably connected to the connecting rod 17, and a supporting plate 18 is fixedly connected to the connecting rod 17, and the supporting plate 18 abuts against the lithium battery 13; through the longitudinal buffer mechanism, when the lithium battery 13 is shaken and pressed down, the supporting plate 18 is driven to be pressed down, and the connecting rod 17 is forced to move downward, thereby driving the transmission shafts 15 on both sides to move downward, thereby compressing the oil pressure buffer 14 and slowing down the longitudinal vibration of the lithium battery 13. Through the rubber ring 16, the friction force when the transmission shaft 15 rotates is increased, and the deceleration buffer effect is further improved;

[0026] The shell 1 is provided with a top cover 19, which is detachably mounted on the top of the shell 1 to facilitate taking out the lithium battery 13. A buffer pad 20 is fixedly connected below the top cover 19 and is disposed in the shell 1. The buffer pad 20 abuts against the lithium battery 13. The buffer pad 20 is provided to prevent the lithium battery 13 from being damaged by colliding with the top cover 19 due to vibration.

[0027] The working principle of the utility model is as follows: when in use, the top cover 19 is first removed, the lithium battery 13 is placed in the buffer rubber sleeve 12, and then the top cover 19 is installed to close the shell 1; when lateral vibration occurs and the battery sleeve 10 hits one side, the end of the elastic column 9 on the same side away from the U-shaped tube 8 is forced to shrink toward the U-shaped tube 8, and the end close to the U-shaped tube 8 moves in the direction away from the U-shaped tube 8, thereby squeezing the damping spring shock absorber 11 to achieve the effect of buffering and shock absorption. Through the set U-shaped tube 8, the elastic column 9 is subjected to a certain friction force during movement, thereby absorbing a part of the kinetic energy, thereby reducing the pressure on the damping spring shock absorber 11, so that the shaking of the battery sleeve 10 The amplitude and telescopic amplitude of the damping spring shock absorber 11 are reduced, the shock absorption effect is better, and the loss of the damping spring shock absorber 11 is greatly reduced, thereby extending the service life of the damping spring shock absorber 11; when longitudinal vibration occurs, the lithium battery 13 is overweight and pressed down, driving the support plate 18 to be pressed down, and the connecting rod 17 is forced to move downward, thereby driving the transmission shafts 15 on both sides to move downward, thereby compressing the oil pressure buffer 14 and slowing down the longitudinal vibration of the lithium battery 13. The rubber ring 16 is set to increase the friction force when the transmission shaft 15 rotates, further improving the deceleration and buffering effect; the buffer pad 20 under the top cover 19 is used to prevent the lithium battery 13 from hitting the top cover 19 due to vibration and causing damage.

[0028] The above embodiments are only used to illustrate the technical method of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical method of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the utility model.

Claims

1. A lithium battery (13) protection device, characterized in that: It comprises a shell (1), the top of the shell (1) is provided with a wire hole (3) and a heat dissipation hole (4), the shell (1) is provided with two transverse buffer mechanisms, and the two transverse buffer mechanisms are symmetrically arranged on both sides of the shell (1); The transverse buffer mechanism comprises a fixed block (7), the fixed block (7) is fixedly connected to the shell (1), a U-shaped tube (8) is fixedly connected to the side of the fixed block (7), an elastic column (9) is sleeved inside the U-shaped tube (8), both ends of the elastic column (9) are outside the U-shaped tube (8), and the distances between the two ends of the elastic column (9) and the U-shaped tube (8) are unequal, a battery sleeve (10) is fixedly connected between the ends of the two elastic columns (9) away from the U-shaped tube (8), and damping spring shock absorbers (11) are fixedly connected between the ends of the two elastic columns (9) close to the U-shaped tube (8) and the battery sleeve (10), a buffer rubber sleeve (12) is fixedly arranged inside the battery sleeve (10), and a lithium battery (13) is sleeved inside the buffer rubber sleeve (12).

2. A lithium battery (13) protection device according to claim 1, characterized in that: A longitudinal buffer mechanism is provided below the battery sleeve (10), and the longitudinal buffer mechanism comprises two oil pressure buffers (14) arranged diagonally, the two oil pressure buffers (14) are fixedly connected to the housing (1), the ends of the two oil pressure buffers (14) are rotatably connected to transmission shafts (15), a connecting rod (17) is provided between the ends of the two transmission shafts (15) away from the oil pressure buffers (14), the two transmission shafts (15) are rotatably connected to the connecting rod (17), a support plate (18) is fixedly connected to the connecting rod (17), and the support plate (18) abuts against the lithium battery (13).

3. A lithium battery (13) protection device according to claim 2, characterized in that: A rubber ring (16) is fixedly arranged on the two transmission shafts (15), and the rubber ring (16) is rotatably connected to the connecting rod (17).

4. A lithium battery (13) protection device according to claim 1, characterized in that: The shell (1) is provided with a top cover (19), and the top cover (19) is detachably mounted on the top of the shell (1).

5. A lithium battery (13) protection device according to claim 4, characterized in that: A buffer pad (20) is fixedly connected below the top cover (19); the buffer pad (20) is arranged in the housing (1); and the buffer pad (20) abuts against the lithium battery (13).

6. A lithium battery (13) protection device according to claim 1, characterized in that: A fixing ear (2) is fixedly arranged on the side of the shell (1), a front cover (5) is arranged on the shell (1), a screw rod (6) is arranged on the shell (1), and the front cover (5) is threadedly connected to the screw rod (6).

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