Power battery with good protectiveness

Abstract

The utility model relates to a power battery with good protectiveness, which belongs to the technical field of power batteries and comprises a shell and a plurality of power battery bodies, the power battery bodies are positioned inside the shell, a cover plate is hinged to the upper surface of the shell, and a box body is slidably connected inside the shell. A buffering mechanism for buffering the box body is arranged on the lower surface of the inner cavity of the shell, a fixing mechanism for fixing a plurality of power battery bodies is arranged in the box body, and the fixing mechanism comprises a motor fixed on the lower surface of the inner cavity of the box body. According to the power battery with good protectiveness, a power battery body is placed between two clamping plates, a motor drives a rotating rod and a first bevel gear to rotate together and drives a second bevel gear and a threaded rod to rotate together, so that two moving blocks move relatively, the moving blocks enable a transverse plate and the multiple clamping plates to move, and the power battery body is fixed through the clamping plates; the power battery body is prevented from being loosened and damaged when the shell moves, and the protectiveness of the power battery body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power batteries, in particular to a power battery with good protection. Background Art

[0002] Power batteries are the power source for tools, mostly referring to the batteries that power electric vehicles, electric trains, electric bicycles, and golf carts. Power batteries are the core components of new energy vehicles and an important direction for future energy transformation.

[0003] For example, a Chinese patent (publication number: CN215795342U) discloses a power battery protection device, wherein a horizontal bottom fixing plate is arranged in a shell, a second shock absorbing mechanism for supporting and shock absorbing is arranged below the bottom fixing plate, two groups of longitudinally arranged battery fixings are arranged on the bottom fixing plate, the battery fixings in the same group are evenly spaced, the two groups of battery fixings are opposite to each other, and a first straight groove is opened on the end surface of each battery fixing facing the opposite battery fixing, the top of the first straight groove is connected to the outside, and an installation space for a power battery is formed between every two opposite battery fixings, a horizontal top fixing plate is arranged on the top of multiple battery fixings, and a plurality of first shock absorbing mechanisms are evenly fixedly arranged between the top fixing plate and the upper cover plate. The utility model can avoid collisions between power batteries and line winding problems, and the first shock absorbing mechanism and the second shock absorbing mechanism can buffer the power batteries in the up and down directions to protect the power batteries from damage.

[0004] The above-mentioned power battery protection device still has certain shortcomings. The power battery is fixed in the installation space formed by the two battery fixing parts, and a gap is left between the power batteries to avoid collision between the power batteries. When the shell is impacted by external force, the first shock absorbing mechanism and the second shock absorbing mechanism can buffer the power battery in the up and down directions, reduce the impact of the impact force on the power battery, and protect the power battery from damage. However, when impacted by external force, the screw rod is prone to rotation due to the lack of fixation, thereby driving the battery fixing part to move, affecting the fixing effect of the power battery. Therefore, the present application proposes a power battery with good protection to solve the above-mentioned problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a power battery with good protection, which has the advantages of good fixing effect, etc., and solves the problem that the existing power batteries with good protection have poor fixing effect.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a power battery with good protection, comprising a shell and a plurality of power battery bodies, wherein the power battery bodies are located inside the shell, a cover plate is hingedly connected to the upper surface of the shell, a box body is slidably connected inside the shell, a buffer mechanism for buffering the box body is provided on the lower surface of the inner cavity of the shell, and a fixing mechanism for fixing the plurality of power battery bodies is provided inside the box body;

[0007] The fixing mechanism includes a motor fixed to the lower surface of the inner cavity of the box body, a rotating rod is fixed to the output shaft of the motor, a first bevel gear is fixed to the outer surface of the rotating rod, the fixing mechanism also includes a threaded rod rotatably connected to the left and right sides of the inner cavity of the box body through a bearing seat, a second bevel gear meshing with the first bevel gear is fixed to the opposite sides of the two threaded rods, a moving block is threadedly connected to the outer surface of the threaded rod, a horizontal plate is fixed to the upper surface of the moving block, and a plurality of equally spaced card plates are fixed to the upper surface of the horizontal plate.

[0008] Furthermore, the upper surface of the rotating rod is rotatably connected to the upper surface of the inner cavity of the box body through a bearing seat, and the cross plate is slidably connected to the upper surface of the box body.

[0009] Furthermore, the clamping plate is U-shaped, and the power battery body is in contact with the clamping plate.

[0010] Furthermore, two vertical plates are fixed between the upper and lower sides of the inner cavity of the box body, and sliding rods are fixed on the opposite sides of the two vertical plates, and the moving block is slidably connected to the outer surface of the sliding rod.

[0011] Furthermore, the buffer mechanism includes a shell fixed to the lower surface of the inner cavity of the shell, a first spring is fixed to the lower surface of the inner cavity of the shell, a connecting rod is fixed to the upper surface of the first spring, fixed rods are fixed on both sides of the left and right sides of the shell, a movable block is slidably connected to the outer surface of the fixed rod, a second spring is sleeved on the outer surface of the fixed rod, and a hinged rod is hinged on the upper surface of the movable block.

[0012] Furthermore, the connecting rod is T-shaped, the connecting rod is slidably connected to the inside of the shell, and the box body is fixed to the upper surface of the connecting rod.

[0013] Furthermore, the upper surface of the hinge rod is hinged to the lower surface of the box body, a slider is fixed to the lower surface of the movable block, two slide grooves are opened on the lower surface of the inner cavity of the shell, and the slider is slidably connected to the inside of the slide groove.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] 1. The power battery with good protection places the power battery body between two clamping plates. The motor drives the rotating rod and the first bevel gear to rotate together, drives the second bevel gear and the threaded rod to rotate together, so that the two moving blocks move relatively at the same time. The moving block drives the cross plate and multiple clamping plates to move together. The power battery body is fixed by the clamping plates to prevent the power battery body from being loosened and damaged when the shell moves, thereby improving the protection of the power battery body.

[0016] 2. For the power battery with good protection, when the outer shell shakes, the power battery body drives the connecting rod to move and squeeze the first spring through the box body, and the box body pushes the movable block to slide on the outer surface of the fixed rod and squeeze the second spring through the hinged rod. The box body and the power battery body are buffered by the first spring and the second spring, thereby providing protection for the power battery body and preventing the power battery body from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the fixing mechanism of the utility model;

[0019] Figure 3 This is a three-dimensional appearance diagram of the horizontal plate and the card plate of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the buffer mechanism of the utility model.

[0021] In the figure: 1 shell, 2 buffer mechanism, 201 shell, 202 first spring, 203 connecting rod, 204 fixed rod, 205 movable block, 206 second spring, 207 hinge rod, 3 box, 4 fixing mechanism, 401 motor, 402 rotating rod, 403 first bevel gear, 404 threaded rod, 405 second bevel gear, 406 moving block, 407 cross plate, 408 card plate, 5 power battery body, 6 cover plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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] See also Figure 1In this embodiment, a power battery with good protection includes a shell 1 and multiple power battery bodies 5. The power battery bodies 5 are located inside the shell 1. Multiple ventilation holes are opened on the back of the shell 1 to facilitate ventilation and heat dissipation. A cover plate 6 is hinged on the upper surface of the shell 1. The power battery bodies 5 are protected by the shell 1 and the cover plate 6 to improve the protection of the power battery bodies 5. The inside of the shell 1 is slidably connected with a box body 3. The lower surface of the inner cavity of the shell 1 is provided with a buffer mechanism 2 for buffering the box body 3, providing buffering for the power battery bodies 5 to prevent the power battery bodies 5 from being damaged during transportation or use. A fixing mechanism 4 for fixing multiple power battery bodies 5 is provided inside the box body 3, which is used to fix the multiple power battery bodies 5 to improve their protection.

[0024] See also Figure 2-3 In order to fix the power battery body 5, the fixing mechanism 4 in this embodiment includes a motor 401 fixed to the lower surface of the inner cavity of the box body 3, the output shaft of the motor 401 is fixed with a rotating rod 402, the outer surface of the rotating rod 402 is fixed with a first bevel gear 403, the fixing mechanism 4 also includes a threaded rod 404 rotatably connected to the left and right sides of the inner cavity of the box body 3 through a bearing seat, and the opposite sides of the two threaded rods 404 are fixed with a second bevel gear 405 meshing with the first bevel gear 403, and the motor 401 drives the rotating rod 4 02 rotates together with the first bevel gear 403, driving the second bevel gear 405 and the threaded rod 404 to rotate together. The outer surface of the threaded rod 404 is threadedly connected with a moving block 406. The two threaded rods 404 rotate in opposite directions at the same time, driving the two moving blocks 406 to move relative to each other or away from each other at the same time. A horizontal plate 407 is fixed to the upper surface of the moving block 406. A plurality of equally spaced clamping plates 408 are fixed to the upper surface of the horizontal plate 407. The power battery body 5 is fixed by the cooperation of the left and right clamping plates 408.

[0025] Among them, the upper surface of the rotating rod 402 is rotatably connected to the upper surface of the inner cavity of the box body 3 through a bearing seat, which increases the stability of the rotating rod 402 when rotating, and the cross plate 407 is slidably connected to the upper surface of the box body 3, which increases the stability of the cross plate 407 when moving.

[0026] In addition, the clamping plate 408 is U-shaped, and the power battery body 5 is abutted against the clamping plate 408. The power battery body 5 is fixed by the cooperation of the left and right clamping plates 408. Two vertical plates are fixed between the upper and lower sides of the inner cavity of the box body 3. Slide rods are fixed on the opposite sides of the two vertical plates. The moving block 406 is slidably connected to the outer surface of the slide rod to increase the stability of the moving block 406 when moving. A rotating hole is opened on the left side of the vertical plate, and the threaded rod 404 is rotatably connected to the inside of the rotating hole through a bearing to improve the stability of the threaded rod 404 when rotating.

[0027] The fixing mechanism 4 in this embodiment places the power battery body 5 between the two clamping plates 408, and the motor 401 drives the rotating rod 402 and the first bevel gear 403 to rotate together, and drives the second bevel gear 405 and the threaded rod 404 to rotate together, so that the two moving blocks 406 move relatively at the same time, and the moving block 406 drives the cross plate 407 and multiple clamping plates 408 to move together, and the power battery body 5 is fixed by the clamping plates 408 to prevent the power battery body 5 from loosening and being damaged when the shell 1 moves.

[0028] See also Figure 4 In order to improve the protection of the power battery body 5, the buffer mechanism 2 in this embodiment includes a shell 201 fixed to the lower surface of the inner cavity of the shell 1, a first spring 202 is fixed to the lower surface of the inner cavity of the shell 201, a connecting rod 203 is fixed to the upper surface of the first spring 202, and the connecting rod 203 is buffered by the first spring 202. Fixed rods 204 are fixed on both sides of the shell 201, and a movable block 205 is slidably connected to the outer surface of the fixed rod 204. A second spring 206 is sleeved on the outer surface of the fixed rod 204, and the movable block 205 is buffered by the second spring 206. The upper surface of the movable block 205 is hinged with a hinged rod 207.

[0029] Among them, the connecting rod 203 is T-shaped, and the connecting rod 203 is slidably connected to the inside of the shell 201. The box body 3 is fixed to the upper surface of the connecting rod 203. When the box body 3 moves, the first spring 202 will be squeezed by the connecting rod 203, and the box body 3 and the power battery body 5 will be buffered by the first spring 202.

[0030] In addition, the upper surface of the hinged rod 207 is hinged to the lower surface of the box body 3. The box body 3 pushes the movable block 205 to slide on the outer surface of the fixed rod 204 and squeeze the second spring 206 through the hinged rod 207. A slider is fixed to the lower surface of the movable block 205. Two sliding grooves are provided on the lower surface of the inner cavity of the outer shell 1. The slider is slidably connected to the inside of the sliding groove to increase the stability of the movable block 205 when moving. A rubber pad is fixed to the lower surface of the cover plate 6 for protecting the power battery body 5.

[0031] In the buffer mechanism 2 of this embodiment, when the shell 1 shakes, the power battery body 5 drives the connecting rod 203 to move and squeeze the first spring 202 through the box body 3, and the box body 3 pushes the movable block 205 to slide on the outer surface of the fixed rod 204 and squeeze the second spring 206 through the hinge rod 207. The box body 3 and the power battery body 5 are buffered by the first spring 202 and the second spring 206, thereby providing protection for the power battery body 5.

[0032] The working principle of the above embodiment is:

[0033] (1) The power battery body 5 is placed between the two clamping plates 408, and the motor 401 is started. The motor 401 drives the rotating rod 402 to rotate, and the rotating rod 402 drives the first bevel gear 403 to rotate at the same time. The first bevel gear 403 drives the two second bevel gears 405 to rotate in the opposite direction at the same time, and the second bevel gear 405 drives the threaded rod 404 to rotate together. The two threaded rods 404 rotate in the opposite direction at the same time, and drive the two moving blocks 406 to move relative to each other at the same time. The moving block 406 slides on the outer surface of the sliding rod to increase the stability of the moving block 406 when it moves. When the moving block 406 moves, it drives the cross plate 407 to move together, and drives the clamping plate 408 to move together through the cross plate 407, so that the clamping plate 408 can be conveniently installed and fixed to the power battery body 5 to prevent the power battery body 5 from loosening and being damaged when the housing 1 moves.

[0034] (2) When the housing 1 shakes, the power battery body 5 drives the connecting rod 203 to move in the housing 201 through the box body 3 and squeeze the first spring 202. At the same time, the box body 3 pushes the movable block 205 to slide on the outer surface of the fixed rod 204 and squeeze the second spring 206 through the hinge rod 207. When the movable block 205 moves, it drives the slider to slide inside the slide groove, thereby increasing the stability of the movable block 205 when moving. The box body 3 and the power battery body 5 are buffered by the first spring 202 and the second spring 206, thereby providing protection for the power battery body 5.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A power battery with good protection, comprising a housing (1) and a plurality of power battery bodies (5), wherein the power battery bodies (5) are located inside the housing (1), characterized in that: The upper surface of the shell (1) is hinged with a cover plate (6), the interior of the shell (1) is slidably connected with a box body (3), the lower surface of the inner cavity of the shell (1) is provided with a buffer mechanism (2) for buffering the box body (3), and the interior of the box body (3) is provided with a fixing mechanism (4) for fixing a plurality of power battery bodies (5); The fixing mechanism (4) comprises a motor (401) fixed to the lower surface of the inner cavity of the box body (3); a rotating rod (402) is fixed to the output shaft of the motor (401); a first bevel gear (403) is fixed to the outer surface of the rotating rod (402); the fixing mechanism (4) further comprises a threaded rod (404) rotatably connected to the left and right sides of the inner cavity of the box body (3) through a bearing seat; second bevel gears (405) meshing with the first bevel gear (403) are fixed to opposite sides of the two threaded rods (404); a moving block (406) is threadedly connected to the outer surface of the threaded rod (404); a transverse plate (407) is fixed to the upper surface of the moving block (406); and a plurality of equally spaced card plates (408) are fixed to the upper surface of the transverse plate (407).

2. A power battery with good protection according to claim 1, characterized in that: The upper surface of the rotating rod (402) is rotatably connected to the upper surface of the inner cavity of the box body (3) via a bearing seat, and the transverse plate (407) is slidably connected to the upper surface of the box body (3).

3. A power battery with good protection according to claim 1, characterized in that: The clamping plate (408) is U-shaped, and the power battery body (5) is in abutment with the clamping plate (408).

4. A power battery with good protection according to claim 1, characterized in that: Two vertical plates are fixed between the upper and lower sides of the inner cavity of the box body (3), and sliding rods are fixed on the opposite sides of the two vertical plates. The moving block (406) is slidably connected to the outer surface of the sliding rod.

5. A power battery with good protection according to claim 1, characterized in that: The buffer mechanism (2) comprises a shell (201) fixed to the lower surface of the inner cavity of the shell (1); a first spring (202) is fixed to the lower surface of the inner cavity of the shell (201); a connecting rod (203) is fixed to the upper surface of the first spring (202); fixed rods (204) are fixed to the left and right sides of the shell (201); a movable block (205) is slidably connected to the outer surface of the fixed rod (204); a second spring (206) is sleeved on the outer surface of the fixed rod (204); and a hinged rod (207) is hinged to the upper surface of the movable block (205).

6. A power battery with good protection according to claim 5, characterized in that: The connecting rod (203) is T-shaped, the connecting rod (203) is slidably connected to the inside of the shell (201), and the box body (3) is fixed to the upper surface of the connecting rod (203).

7. A power battery with good protection according to claim 5, characterized in that: The upper surface of the hinge rod (207) is hinged to the lower surface of the box body (3), a slider is fixed to the lower surface of the movable block (205), and two slide grooves are provided on the lower surface of the inner cavity of the shell (1), and the slider is slidably connected to the inside of the slide grooves.

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