A sodium-ion battery pack protection device

Abstract

This utility model belongs to the field of battery protection technology, specifically a sodium-ion battery pack protection device, including a protective box containing a battery pack body. A protective component is located below the battery pack body. By setting a first connecting block, a second connecting block, and a connecting rod, during transportation, the battery pack body applies pressure to the protective pad and base plate. The base plate drives the first connecting block downwards, and during this downward movement, the top of the connecting rod moves downwards. Under the action of the pin, the bottom of the connecting rod moves to both sides, which in turn drives the second connecting block to move to both sides. The first spring is compressed, absorbing some of the vibration waves. Simultaneously, under the action of the first damper, the vibration effect is weakened, allowing the first spring to act as a buffer and reducing its reciprocating vibration, thus achieving the function of vertically protecting the battery pack body.

Description

Technical Field

[0001] This utility model belongs to the field of battery protection technology, specifically a sodium-ion battery pack protection device. Background Technology

[0002] With the widespread impact of global energy issues and the increasing prominence of environmental problems, the sodium-ion battery industry has developed rapidly. Battery packs composed of sodium-ion batteries are becoming increasingly important. The safety and stability of batteries have a significant impact on their lifespan. Sodium-ion battery packs need to be protected during transportation and storage to prevent external forces from causing danger to the batteries.

[0003] A Chinese patent with publication number CN221970277U discloses a safety protection device for a battery pack, including a housing. The housing includes a shell, and the top of the shell is movably connected to a cover via a hinge. During installation, the battery pack body is first placed inside the protective base. As the battery pack body moves, a protective plate is pushed into the storage slot, preventing the battery pack body from entering the protective base. Once the battery pack body is in place, the protective plate resets under the action of a spring, thereby clamping the top of the battery pack body around its perimeter and fixing its position. This solves the problem that during transport within a transport box, the battery pack shakes and its surface collides with the inner wall of the transport box, causing damage to the battery pack.

[0004] Currently, existing technologies can protect battery packs horizontally, but not vertically. During transportation, external forces may damage the battery packs, making them poorly protected.

[0005] Therefore, a sodium-ion battery pack protection device is proposed to address the above problems. Utility Model Content

[0006] To overcome the shortcomings of existing technologies and solve the problem of protecting battery packs in the vertical direction, a sodium-ion battery pack protection device is proposed.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A sodium-ion battery pack protection device of this utility model includes a protective box, in which a battery pack body is provided; a protective component is provided below the battery pack body; the protective component includes two crossbars fixed to the inner wall of the bottom end of the protective box, two second connecting blocks are symmetrically fixed to both ends of each crossbar, and a connecting rod is rotatably connected to the top of each of the second connecting blocks via a pin; a first connecting block is rotatably connected to the top of each of the connecting rods via a pin, a base plate is fixed to the top of the four first connecting blocks, a protective pad is pasted on the top of the base plate, and the battery pack body is placed on the top of the protective pad; a first damper is sleeved on both ends of each crossbar, and a first spring is sleeved on each of the first dampers.

[0008] Preferably, four sliding tubes are fixedly connected to the bottom inner wall of the protective box, and a second damper is fixedly connected to each of the four bottom corners of the bottom plate. The bottom of each second damper is slidably connected to the sliding tube, and a second spring is sleeved on each of the second dampers.

[0009] Preferably, the battery pack body has multiple protective plates on its side walls, and multiple third springs are fixedly connected to the side walls of the multiple protective plates away from the battery pack body. Multiple third dampers are fixedly connected to the inner wall of the protective box, and one end of each third spring is fixedly connected to a third damper.

[0010] Preferably, the protective plate has a broken cross-section, and the top of the protective plate is bent toward one side of the protective box; multiple rollers are rotatably connected to the side wall of the protective plate near the battery pack via roller shafts.

[0011] Preferably, the top of the protective box is hinged to a cover plate, the top of the cover plate has an opening, a sliding plate is slidably connected inside the opening, and the side wall of the sliding plate is magnetically attracted to the cover plate by a magnetic block.

[0012] Preferably, a temperature sensor is installed on the top inner wall of the cover plate; a heat dissipation shell is fixed to the side wall of the protective box, and a cooling fan is installed inside the heat dissipation shell; a dustproof plate is pasted on the outer wall of the heat dissipation shell; and the cooling fan is electrically connected to the temperature sensor.

[0013] Preferably, two fixed plates are fixedly connected to the side wall of the protective box near the dustproof plate. A reciprocating screw is rotatably connected between the two fixed plates via a bearing. A movable plate is threadedly connected to the reciprocating screw. Two guide rods are fixedly connected between the two fixed plates. The movable plate is slidably connected to the two guide rods. A motor is provided at one end of the reciprocating screw. A cleaning brush is installed on the side wall of the movable plate. The cleaning brush is in close contact with the surface of the dustproof plate.

[0014] Preferably, four threaded bolts are fixed to the bottom inner wall of the cover plate, and each threaded bolt has a pad threaded to its bottom.

[0015] Preferably, the top of the cover plate is hinged with a handle, and the cover plate has a placement groove, which is engaged with the handle; a buckle is provided on one side of the cover plate, which is engaged with the protective box.

[0016] Preferably, each of the four corners of the bottom of the protective box is rotatably connected to a mounting base, and each mounting base is rotatably connected to a caster wheel, one of which is provided with a brake pad on one side.

[0017] The beneficial effects of this utility model are:

[0018] This utility model provides a sodium-ion battery pack protection device. By setting a first connecting block, a second connecting block, and a connecting rod, during transportation, the battery pack body applies pressure to the protective pad and base plate. The base plate drives the first connecting block downwards, and during this downward movement, the top of the connecting rod moves downwards. Under the action of the pin, the bottom of the connecting rod moves to both sides, which in turn drives the second connecting block to move to both sides. The first spring is compressed, absorbing some of the vibration waves. Simultaneously, under the action of the first damper, the vibration effect is weakened, allowing the first spring to act as a buffer and reducing its reciprocating vibration, thus achieving the function of vertically protecting the battery pack body.

[0019] This utility model provides a sodium-ion battery pack protection device. By setting a reciprocating lead screw and a cleaning brush, the motor is turned on, and the output shaft of the motor drives the reciprocating lead screw to rotate. The reciprocating lead screw drives the moving plate to move back and forth, and the protective plate drives the cleaning brush to move back and forth. The cleaning brush cleans the dustproof plate, realizing the function of quickly cleaning the dustproof plate. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 This is a cross-sectional view of the present invention;

[0023] Figure 3 This is a perspective view of the first connecting block and the second connecting block in this utility model;

[0024] Figure 4This is a perspective view of the protective plate in this utility model;

[0025] Figure 5 This is a perspective view of the roller in this utility model;

[0026] Figure 6 This is a perspective view of the movable plate in this utility model;

[0027] Figure 7 This is a perspective view of the pad block in this utility model;

[0028] Legend:

[0029] 1. Protective box; 11. Mounting base; 12. Casters; 2. Cover plate; 21. Sliding plate; 22. Handle; 23. Placement slot; 24. Pad; 25. Threaded bolt; 3. Battery pack body; 4. Base plate; 41. Protective pad; 42. First connecting block; 43. Connecting rod; 44. Crossbar; 45. Second connecting block; 46. First damper; 47. First spring; 48. Sliding tube; 49. Second damper; 410. Second spring; 5. Protective plate; 51. Third spring; 52. Third damper; 53. Roller; 6. Temperature sensor; 7. Heat sink; 71. Cooling fan; 72. Dustproof plate; 73. Fixing plate; 74. Moving plate; 75. Reciprocating screw; 76. Guide rod; 77. Motor; 78. Cleaning brush. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0031] Specific implementation examples are given below.

[0032] Please see Figures 1-7This utility model provides a sodium-ion battery pack protection device, including a protective box 1, inside which a battery pack body 3 is provided; a protective component is provided below the battery pack body 3; the protective component includes two crossbars 44 fixed to the inner wall of the bottom end of the protective box 1, two second connecting blocks 45 are symmetrically fixed to both ends of each crossbar 44, and the top of each second connecting block 45 is rotatably connected to a connecting rod 43 by a pin; the top of each connecting rod 43 is rotatably connected to a first connecting block 42 by a pin, the top of each of the four first connecting blocks 42 is fixed to a base plate 4, a protective pad 41 is pasted on the top of the base plate 4, and the battery pack body 3 is located on the top of the protective pad 41; a first damper 46 is sleeved on both ends of each crossbar 44, and a first spring 47 is sleeved on each of the first dampers 46.

[0033] During operation, to address the lack of vertical protection for the battery pack body 3, it is placed on a protective pad 41 during placement. The protective pad 41 provides initial protection for the battery pack body 3 by cushioning and preventing slippage. During transportation, if the battery pack body 3 is bumped due to external forces, it applies pressure to the protective pad 41 and the base plate 4. The base plate 4 causes the first connecting block 42 to move downwards. As the first connecting block 42 moves downwards, the top of the connecting rod 43 moves downwards. Under the action of the pin, the bottom of the connecting rod 43 moves to both sides, which in turn causes the second connecting block 45 to move to both sides. The first spring 47 is compressed, absorbing some of the vibration waves. At the same time, the vibration effect is weakened by the action of the first damper 46, allowing the first spring 47 to act as a buffer and reducing its reciprocating vibration, thus achieving the function of vertical protection for the battery pack body 3.

[0034] Furthermore, such as Figure 2 and Figure 3 As shown, four sliding tubes 48 are fixedly connected to the bottom inner wall of the protective box 1, and a second damper 49 is fixedly connected to each of the four bottom corners of the bottom plate 4. The bottom of the second damper 49 is slidably connected to the sliding tube 48, and a second spring 410 is sleeved on each of the second dampers 49.

[0035] During operation, due to the large weight of the battery pack body 3, in order to prevent the long-term vibration of the first spring 47 from affecting the protective effect, second springs 410 and second dampers 49 are set on the four corners of the base plate 4 in conjunction with the first spring 47. During vibration, the base plate 4 presses the second damping block and the second spring 410, and the second damping block and the second spring 410 buffer the base plate 4, realizing the dual protection function of the battery pack body 3.

[0036] Furthermore, such as Figure 2 and Figure 4 As shown, multiple protective plates 5 are provided on the side walls of the battery pack body 3, and multiple third springs 51 are fixedly connected to the side walls of the multiple protective plates 5 away from the battery pack body 3. Multiple third dampers 52 are fixedly connected to the inner wall of the protective box 1, and one end of each third spring 51 is fixedly connected to the third damper 52.

[0037] During operation, in order to protect the battery pack body 3 in the horizontal direction, a third spring 51 and a third damper 52 are set. Under the action of external force, the battery pack body 3 shakes in the horizontal direction. The battery pack body 3 presses the protective plate 5, and the protective plate 5 presses the third spring 51 and the third damper 52. The third spring 51 absorbs the vibration wave of the protective plate 5, and the third damper 52 weakens the vibration effect of the third spring 51, thus buffering the protective plate 5 and achieving horizontal protection for the battery pack body 3.

[0038] Furthermore, such as Figure 4 and Figure 5 As shown, the protective plate 5 has a broken cross section, and the top of the protective plate 5 is bent toward one side of the protective box 1; multiple rollers 53 are rotatably connected to the side wall of the protective plate 5 near the battery pack via roller shafts.

[0039] During operation, the protective plate 5 has a zigzag cross section, and the top of the protective plate 5 is bent toward one side of the protective box 1. The design of the opening, which is larger at the top and smaller at the bottom, facilitates the placement of the battery pack body 3. Rollers 53 are set on the protective plate 5. When the battery pack body 3 is placed, it rolls off the rollers 53, reducing the friction between the battery pack body 3 and the protective plate 5, and facilitating the quick placement of the battery pack body 3.

[0040] Furthermore, such as Figure 1 As shown, the top of the protective box 1 is hinged to a cover plate 2, and the top of the cover plate 2 has an opening. A sliding plate 21 is slidably connected inside the opening, and the side wall of the sliding plate 21 is magnetically attracted to the cover plate 2 by a magnetic block.

[0041] When in operation, the top of the cover plate 2 has an opening to facilitate the extension of the battery pack body 3's wiring; a sliding plate 21 is slidably connected inside the opening to protect the opening when not in operation; the side wall of the sliding plate 21 is magnetically attracted to the cover plate 2 by a magnetic block, making it easy to attach and fix the sliding plate 21 inside the opening.

[0042] Furthermore, such as Figure 2 and Figure 6As shown, a temperature sensor 6 is installed on the top inner wall of the cover plate 2; a heat dissipation shell 7 is fixed to the side wall of the protective box 1, and a cooling fan 71 is installed inside the heat dissipation shell 7; a dustproof plate 72 is pasted on the outer wall of the heat dissipation shell 7; and the cooling fan 71 is electrically connected to the temperature sensor 6.

[0043] During operation, a temperature sensor 6 is installed to monitor the temperature inside the protective box 1. When the temperature exceeds the set value, the signal from the temperature sensor 6 is transmitted to the system, which then controls the cooling fan 71 to turn on and dissipate heat from the inside of the protective box 1. A dustproof plate 72 is attached to the outer wall of the heat dissipation shell 7 to reduce dust from entering the protective box 1.

[0044] Furthermore, such as Figure 6 As shown, two fixed plates 73 are fixedly connected to the side wall of the protective box 1 near the dustproof plate 72. A reciprocating screw 75 is rotatably connected between the two fixed plates 73 through a bearing. A moving plate 74 is threadedly connected to the reciprocating screw 75. Two guide rods 76 are fixedly connected between the two fixed plates 73. The moving plate 74 is slidably connected to the two guide rods 76. A motor 77 is provided at one end of the reciprocating screw 75. A cleaning brush 78 is installed on the side wall of the moving plate 74. The cleaning brush 78 is in close contact with the surface of the dustproof plate 72.

[0045] During operation, after a period of time, a lot of dust accumulates on the protective plate 5. To prevent the dust from clogging the protective plate 5 and affecting the heat dissipation, the motor 77 needs to be turned on. The output shaft of the motor 77 drives the reciprocating screw 75 to rotate, which in turn drives the moving plate 74 to reciprocate. This, in turn, drives the cleaning brush 78 to reciprocate through the protective plate 5. The cleaning brush 78 then cleans the dustproof plate 72, thus achieving a quick cleaning function for the dustproof plate 72.

[0046] Furthermore, such as Figure 2 and Figure 7 As shown, four threaded bolts 25 are fixed to the bottom inner wall of the cover plate 2, and each threaded bolt 25 is threaded with a pad 24 at its bottom.

[0047] During operation, threaded bolts 25 are fixed to the bottom inner wall of the cover plate 2, and each threaded bolt 25 is threaded with a pad 24 to the bottom, which is used to support and protect the top of the battery pack body 3, preventing the wiring and other mounting components on the top of the battery pack body 3 from colliding with the cover plate 2 and being damaged during up-and-down shaking.

[0048] Furthermore, such as Figure 1 As shown, a handle 22 is hinged to the top of the cover plate 2, and a placement groove 23 is provided on the cover plate 2, with the handle 22 cooperating with the placement groove 23; a buckle is provided on one side of the cover plate 2, and the buckle is snapped onto the protective box 1.

[0049] During operation, the protective box 1 is easily carried and moved by hand by the handle 22, and the cover plate 2 is snapped onto the protective box 1 by the buckle, so as to close the protective box 1 and protect the various components inside the protective box 1.

[0050] Furthermore, such as Figure 6 As shown, the protective box 1 has mounting bases 11 rotatably connected to the four corners of its bottom, and universal wheels 12 are rotatably connected to each mounting base 11. One of the universal wheels 12 has a brake pad on one side.

[0051] During operation, the casters 12 facilitate the movement of the protective box 1 to the designated position. Once the protective box 1 has been moved to the designated position, the casters 12 can be braked and fixed by the brake pads to prevent movement during transportation or storage.

[0052] Working Principle: To address the issue of insufficient vertical protection for the battery pack body 3, during placement, the battery pack body 3 is placed on a protective pad 41. The protective pad 41 provides cushioning and anti-slip protection, offering initial protection for the battery pack body 3. During transportation, if the battery pack body 3 experiences bumps due to external forces, the battery pack body 3 applies pressure to the protective pad 41 and the base plate 4. The base plate 4 causes the first connecting block 42 to move downwards. As the first connecting block 42 moves downwards, it causes the top of the connecting rod 43 to move downwards. Under the action of the pin, the bottom of the connecting rod 43 moves to both sides, which in turn causes the second connecting block 45 to move to both sides. The spring 47 is compressed, absorbing part of the vibration wave. At the same time, under the action of the first damper 46, the vibration effect is weakened, so that the first spring 47 plays a buffering role and weakens the reciprocating vibration effect of the first spring 47, thus realizing the function of vertical protection for the battery pack body 3. Since the battery pack body 3 is relatively heavy, in order to prevent the long-term vibration of the first spring 47 from affecting the protection effect, the four corners of the base plate 4 are equipped with second springs 410 and second dampers 49 to work with the first spring 47. During vibration, the base plate 4 presses the second damping block and the second spring 410, and the second damping block and the second spring 410 buffer the base plate 4, thus realizing the dual protection function for the battery pack body 3.

[0053] To provide horizontal protection for the battery pack body 3, a third spring 51 and a third damper 52 are incorporated. Under external force, the battery pack body 3 sways horizontally, pressing against the protective plate 5. The protective plate 5, in turn, presses against the third spring 51 and the third damper 52. The third spring 51 absorbs the vibration waves from the protective plate 5, and the third damper 52 reduces the vibration effect of the third spring 51, thus buffering the protective plate 5 and providing horizontal protection for the battery pack body 3. The protective plate 5 has a zigzag cross-section, with its top bent towards one side of the protective box 1. The design, with a wider opening at the top and a narrower opening at the bottom, facilitates the placement of the battery pack body 3. Rollers 53 are installed on the protective plate 5, allowing the battery pack body 3 to roll off during placement, reducing friction between the battery pack body 3 and the protective plate 5 and facilitating rapid placement.

[0054] Temperature sensor 6 is installed to monitor the temperature inside the protective box 1. When the temperature exceeds the set value, the signal from temperature sensor 6 is transmitted to the system, which then controls the cooling fan 71 to turn on and dissipate heat from the inside of the protective box 1. A dustproof plate 72 is attached to the outer wall of the heat dissipation shell 7 to reduce dust entering the protective box 1. After working for a period of time, a lot of dust accumulates on the protective plate 5. To prevent the dust from clogging the protective plate 5 and affecting the heat dissipation effect, the motor 77 needs to be turned on. The output shaft of the motor 77 drives the reciprocating screw 75 to rotate, which in turn drives the moving plate 74 to reciprocate. This, in turn, drives the cleaning brush 78 to reciprocate, which cleans the dustproof plate 72, thus achieving a rapid cleaning function for the dustproof plate 72.

[0055] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A sodium-ion battery pack protection device, comprising a protection box (1), wherein a battery pack body (3) is arranged in the protection box (1); a protection assembly is arranged below the battery pack body (3); characterized in that: The protective assembly includes two crossbars (44) fixed to the inner wall of the bottom of the protective box (1). Two second connecting blocks (45) are symmetrically fixed to both ends of the crossbars (44). The top of each of the second connecting blocks (45) is rotatably connected to a connecting rod (43) via a pin. The top of each connecting rod (43) is rotatably connected to a first connecting block (42) via a pin. The top of each of the four first connecting blocks (42) is fixed to a base plate (4). A protective pad (41) is pasted on the top of the base plate (4). The battery pack body (3) is located on the top of the protective pad (41). A first damper (46) is sleeved on both ends of the crossbars (44). A first spring (47) is sleeved on each of the first dampers (46).

2. The sodium-ion battery pack protection device of claim 1, wherein: Four sliding tubes (48) are fixedly connected to the bottom inner wall of the protective box (1), and a second damper (49) is fixedly connected to each of the four bottom corners of the bottom plate (4). The bottom of the second damper (49) is slidably connected to the sliding tube (48), and a second spring (410) is sleeved on each of the second dampers (49).

3. A sodium-ion battery pack protection device according to claim 2, characterized in that: The battery pack body (3) is provided with multiple protective plates (5) on its side wall. Multiple third springs (51) are fixed to the side wall of the multiple protective plates (5) away from the battery pack body (3). Multiple third dampers (52) are fixed to the inner wall of the protective box (1). One end of each third spring (51) is fixed to the third damper (52).

4. A sodium-ion battery pack protection device according to claim 3, characterized in that: The protective plate (5) has a broken cross section, and the top of the protective plate (5) is bent toward one side of the protective box (1); multiple rollers (53) are rotatably connected to the side wall of the protective plate (5) near the battery pack by roller shafts.

5. A sodium-ion battery pack protection device according to claim 4, characterized in that: The top of the protective box (1) is hinged with a cover plate (2), and the top of the cover plate (2) has an opening. A sliding plate (21) is slidably connected inside the opening, and the side wall of the sliding plate (21) is magnetically attracted to the cover plate (2) by a magnetic block.

6. A sodium-ion battery pack protection device according to claim 5, characterized in that: A temperature sensor (6) is installed on the top inner wall of the cover plate (2); a heat sink (7) is fixed to the side wall of the protective box (1), and a cooling fan (71) is installed inside the heat sink (7); a dustproof plate (72) is pasted on the outer wall of the heat sink (7); the cooling fan (71) is electrically connected to the temperature sensor (6).

7. A sodium-ion battery pack protection device according to claim 6, characterized in that: Two fixed plates (73) are fixedly connected to the side wall of the protective box (1) near the dustproof plate (72). A reciprocating screw (75) is rotatably connected between the two fixed plates (73) through a bearing. A moving plate (74) is threadedly connected to the reciprocating screw (75). Two guide rods (76) are fixedly connected between the two fixed plates (73). The moving plate (74) is slidably connected to the two guide rods (76). A motor (77) is provided at one end of the reciprocating screw (75). A cleaning brush (78) is installed on the side wall of the moving plate (74). The cleaning brush (78) is in close contact with the surface of the dustproof plate (72).

8. A sodium-ion battery pack protection device according to claim 7, characterized in that: Four threaded bolts (25) are fixed to the bottom inner wall of the cover plate (2), and each threaded bolt (25) has a pad (24) threaded to its bottom.

9. A sodium-ion battery pack protection device according to claim 8, characterized in that: The top of the cover plate (2) is hinged with a handle (22), and a placement groove (23) is provided on the cover plate (2). The handle (22) cooperates with the placement groove (23). A buckle is provided on one side of the cover plate (2), and the buckle is snapped onto the protective box (1).

10. A sodium-ion battery pack protection device according to claim 9, characterized in that: The protective box (1) has four mounting bases (11) rotatably connected to its bottom corners. Each mounting base (11) is rotatably connected to a caster wheel (12), and one of the caster wheels (12) has a brake pad on one side.

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