A protective shell for a sodium-ion battery

Abstract

The application relates to the technical field of battery protective shells, in particular to a sodium ion battery protective shell which comprises a lower shell, an upper shell and a plurality of wire holes, the upper shell is detachably installed on the lower shell, the plurality of wire holes are uniformly arranged on the upper shell, at least one heat dissipation window is formed on the lower shell, a dust screen is arranged in the heat dissipation window, the protective shell further comprises: locking capsules which are annular and in plurality, the locking capsules are arranged in the wire holes; a heat dissipation module which is arranged in the heat dissipation window and is used for heat dissipation treatment of the battery, the heat dissipation module is connected with the locking capsules, and the air volume in the locking capsules can be adjusted when the heat dissipation module works; and a waterproof module which is arranged on the lower shell; the whole device has a high protection coefficient, can effectively protect the battery from water when there is accumulated water around the protective shell, can guarantee heat dissipation work of the battery, and can prolong the service life of the battery.

Description

Technical Field

[0001] This invention relates to the field of battery protective case technology, and more specifically, to a sodium-ion battery protective case. Background Technology

[0002] Sodium-ion batteries are advantageous compared to traditional lithium-ion batteries because they are cheaper and sodium, a raw material, is more readily available. Therefore, with the price of lithium soaring, sodium-ion batteries have become increasingly popular as energy storage devices.

[0003] Sodium-ion batteries require a protective casing during normal installation. However, existing protective casings have simple structures and the following drawbacks:

[0004] While existing sodium-ion battery protective cases have heat dissipation functions, water accumulation around the battery can easily cause water seepage, affecting the normal operation of the battery and causing great inconvenience. Moreover, if the protective case is sealed to prevent water from getting out, the heat generated during battery operation cannot be dissipated in time, which can also damage the battery. Summary of the Invention

[0005] The purpose of this invention is to provide a protective casing for sodium-ion batteries to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A protective shell for a sodium-ion battery includes a lower shell, an upper shell, and several wire holes. The upper shell is detachably mounted on the lower shell. The wire holes are evenly distributed on the upper shell. The lower shell has at least one heat dissipation window formed therein, and a dustproof mesh is provided inside the heat dissipation window. The protective shell also includes:

[0008] Locking pouches, which are ring-shaped and number in number, are disposed within the wire holes;

[0009] A heat dissipation module, located within the heat dissipation window, is used to dissipate heat from the battery. The heat dissipation module is connected to the locking bladder, and the air volume within the locking bladder can be adjusted when the heat dissipation module is operating.

[0010] A waterproof module, installed on the lower housing, is used to monitor the humidity of the surrounding environment and control the opening and closing of the heat dissipation vents; among which...

[0011] The heat dissipation module includes:

[0012] The fan blades are movably mounted within the heat dissipation window;

[0013] A dual-axis motor is housed within the lower housing, with one drive shaft of the motor connected to a fan blade; and

[0014] An inflation unit, located inside the lower housing and connected to one of the drive shafts of a dual-axis motor, is used to adjust the air volume inside the locking bladder.

[0015] A further technical solution of this application: the upper shell is provided with a second flow channel communicating with the locking bladder, and the lower shell is provided with a first flow channel communicating with the second flow channel; the inflation unit includes:

[0016] The slide plate is movably disposed in a cavity formed inside the lower shell and the two are elastically connected, the cavity being connected to the first flow channel;

[0017] A turntable, movably mounted within the lower housing and connected to the other drive shaft of a dual-axis motor; and

[0018] The guide rod is provided in the drive cavity of the turntable. Each guide rod is movably provided with a first magnetic block and the two are elastically connected. The slide plate is provided with a second magnetic block that repels the first magnetic block.

[0019] A further technical solution of this application: a damping strip is provided on the inner wall of the cavity, and the damping strip and the sliding plate are in sliding cooperation.

[0020] A further technical solution of this application: the waterproof module includes:

[0021] A humidity sensor, mounted on the lower housing, is used to monitor the humidity of the environment surrounding the lower housing.

[0022] A sealing plate, movably mounted on the lower housing, is located on one side of the heat dissipation window; and

[0023] An adjustment unit is located between the lower housing and the sealing plate, and is used to adjust the position of the sealing plate on the lower housing.

[0024] A further technical solution of this application: the adjustment unit includes a power element and a winding reel, the winding reel is movably mounted on the lower housing and connected by a belt and a sealing plate, the power element is mounted on the lower housing and its output end is connected to the winding reel.

[0025] A further technical solution of this application is: a number of locking structures are provided between the upper shell and the lower shell for fixing the lower shell and the upper shell together.

[0026] A further technical solution of this application: each group of locking structures includes a movable base, an airbag, and a trapezoidal block;

[0027] The movable seat is movably mounted on the upper shell and the two are elastically connected. The airbag is connected between the movable seat and the upper shell. The trapezoidal block is mounted on the movable seat. The lower shell has an inclined surface that matches the trapezoidal block.

[0028] An air extraction chamber is formed on the upper shell, and an air extraction block is movably disposed in the air extraction chamber and the two are elastically connected. The air extraction chamber is connected to each airbag.

[0029] Compared with the prior art, the technical solution provided by the embodiments of the present invention has the following beneficial effects:

[0030] This invention, through the coordination of a heat dissipation module and a waterproof module, not only utilizes the centrifugal force exerted on the first magnetic block to control the air volume within the locking chamber when the fan blades and turntable are rotated by a dual-axis motor, thereby securing the cable, but also, when the waterproof module detects water accumulation around the protective shell, it can promptly seal the heat dissipation window and reduce the size of the locking chamber, creating space between the cable hole and the cable for short-term battery heat dissipation. The entire device has a high protection coefficient, effectively waterproofing the battery when water accumulates around the protective shell while ensuring battery heat dissipation, thus extending battery life. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the sodium-ion battery protective shell in an embodiment of the present invention;

[0032] Figure 2 This is an enlarged structural diagram of point A in the protective shell of the sodium-ion battery in an embodiment of the present invention;

[0033] Figure 3 This is a cross-sectional view of the turntable in the sodium-ion battery protective shell in an embodiment of the present invention;

[0034] Figure 4 This is an enlarged structural schematic diagram of point B in the sodium-ion battery protective shell of an embodiment of the present invention;

[0035] Figure 5 This is a schematic diagram of the movable base and trapezoidal block in the sodium-ion battery protective shell of an embodiment of the present invention.

[0036] Explanation of the labels in the diagram:

[0037] 1-Lower housing, 2-Upper housing, 3-Heat dissipation window, 4-Dustproof net, 5-Sealing plate, 6-Rewinding reel, 7-Stepper motor, 8-Humidity sensor, 9-Fan blade, 10-Dual-axis motor, 11-Turntable, 12-Guide rod, 13-Magnetic block No. 1, 14-Slide plate, 15-Magnetic block No. 2, 16-Damping strip, 17-Cavity, 18-Flow channel No. 1, 19-Flow channel No. 2, 20-Moving seat, 21-Trapezoidal block, 22-Airbag, 23-Wire hole, 24-Locking bag, 25-Inclined surface. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. The present invention will be further described below with reference to the embodiments.

[0039] Please see Figure 1-5 In one embodiment of this application, a sodium-ion battery protective shell includes a lower shell 1, an upper shell 2, and a plurality of wire holes 23. The upper shell 2 is detachably mounted on the lower shell 1. The plurality of wire holes 23 are evenly arranged on the upper shell 2. At least one heat dissipation window 3 is formed on the lower shell 1, and a dustproof mesh 4 is provided inside the heat dissipation window 3. The protective shell further includes:

[0040] Locking pouches 24 are ring-shaped and there are several of them. The locking pouches 24 are disposed in the wire hole 23.

[0041] A heat dissipation module, located within the heat dissipation window 3, is used to dissipate heat from the battery. The heat dissipation module is connected to the locking bladder 24, and the air volume within the locking bladder 24 can be adjusted when the heat dissipation module is in operation.

[0042] A waterproof module, installed on the lower housing 1, is used to monitor the humidity of the surrounding environment of the lower housing 1 and control the opening and closing of the heat dissipation window 3; wherein

[0043] The heat dissipation module includes:

[0044] Fan blade 9 is movable within heat dissipation window 3;

[0045] A dual-axis motor 10 is disposed within the lower housing 1, and one of the drive shafts of the dual-axis motor 10 is connected to the fan blade 9; and

[0046] An inflation unit, located inside the lower housing 1 and connected to one of the drive shafts of the dual-axis motor 10, is used to adjust the air volume inside the locking bladder 24.

[0047] In this embodiment, the upper housing 2 is provided with a second flow channel 19 communicating with the locking bladder 24, and the lower housing 1 is provided with a first flow channel 18 communicating with the second flow channel 19. The inflation unit includes:

[0048] The slide plate 14 is movably disposed in the cavity 17 formed inside the lower housing 1 and the two are elastically connected. The cavity 17 is connected to the first flow channel 18.

[0049] Turntable 11 is movably disposed within the lower housing 1 and connected to the other drive shaft of the dual-axis motor 10; and

[0050] The guide rod 12 is provided in the drive cavity of the turntable 11. Each guide rod 12 is movably provided with a first magnetic block 13 and the two are elastically connected. The slide plate 14 is provided with a second magnetic block 15 that meets and repels the first magnetic block 13.

[0051] It should be noted that a damping strip 16 is provided on the inner wall of the cavity 17, and the damping strip 16 and the slide plate 14 are in sliding engagement.

[0052] It should be noted that the inflation unit is not limited to the replacement structure described above. In this embodiment, the inflation unit can be directly replaced by a blower or an air pump, which will not be listed here.

[0053] When the upper housing 2 is installed on the lower housing 1, the first flow channel 18 and the second flow channel 19 are aligned and connected to each other. When the battery inside the protective housing is working, the dual-axis motor 10 is energized and rotated. On one hand, it drives the fan blade 9 to rotate to dissipate heat from the battery. On the other hand, it also drives the turntable 11 to rotate synchronously. Under the action of centrifugal force, the first magnetic block 13 can be moved along the guide rod 12. At this time, the distance between the first magnetic block 13 and the second magnetic block 15 is reduced. Under the repulsive force between the first magnetic block 13 and the second magnetic block 15, the sliding plate 14 is moved as follows. Figure 2 The direction shown moves upward, thereby squeezing the air in the cavity 17 into the locking bladder 24, causing the locking bladder 24 to expand and compress the cable in the wire hole 23, thereby completing the cable fixing work. When there is water accumulation around the protective shell, the waterproof module works and blocks the heat dissipation window 3. At this time, the dual-axis motor 10 is de-energized, causing the slide plate 14 to reset. At this time, the locking bladder 24 shrinks, leaving space between the wire hole 23 and the cable for short-term heat dissipation of the battery.

[0054] Please see Figure 1 In another preferred embodiment of this application, the waterproof module includes:

[0055] A humidity sensor 8 is installed on the lower housing 1 to monitor the humidity of the environment surrounding the lower housing 1.

[0056] A sealing plate 5 is movably mounted on the lower housing 1, and the sealing plate 5 is located on one side of the heat dissipation window 3; and

[0057] An adjustment unit is located between the lower housing 1 and the sealing plate 5, and is used to adjust the position of the sealing plate 5 on the lower housing 1.

[0058] In this embodiment, the adjustment unit includes a power element and a winding reel 6. The winding reel 6 is movably mounted on the lower housing 1 and connected to it via a belt and a sealing plate 5. The power element is mounted on the lower housing 1 and its output end is connected to the winding reel 6.

[0059] It should be noted that the power element can be a stepper motor 7 or a servo motor. In this embodiment, the power element is preferably a stepper motor 7. The stepper motor 7 is mounted on the lower housing 1 and its output end is connected to the take-up reel 6. The specific model of the stepper motor 7 can be selected according to the actual situation and is not specifically limited here.

[0060] When water seeps into the environment where the battery is located, the humidity sensor 8 can control the stepper motor 7 to rotate, driving the winding reel 6 to rotate synchronously, thereby winding up the belt and allowing the sealing plate 5 to... Figure 1 The direction shown moves upward to seal the heat dissipation window 3, preventing water from entering the lower housing 1 through the heat dissipation window 3 and causing water seepage and damage to the battery. At the same time, it can also control the dual-axis motor 10 to operate without power. At this time, because the first magnetic block 13 and the second magnetic block 15 are no longer in the repulsion range, the slide plate 14 moves downward. At this time, the air in the locking bladder 24 is extracted, and the locking bladder 24 shrinks, creating a gap between the cable and the wire hole 23. Through this gap, the heat generated by the battery during operation can be discharged outside the protective shell in a short time. The whole device has a high degree of automation and can effectively protect the battery. Even if there is water accumulation around the protective shell, it can ensure normal heat dissipation of the battery while being waterproof.

[0061] Please see Figure 1 , Figure 4 as well as Figure 5 As another preferred embodiment of this application, a plurality of locking structures are provided between the upper housing 2 and the lower housing 1 for fixing the lower housing 1 and the upper housing 2 together.

[0062] In this embodiment, each locking structure includes a movable base 20, an airbag 22, and a trapezoidal block 21.

[0063] The movable seat 20 is movably mounted on the upper housing 2 and the two are elastically connected. The airbag 22 is connected between the movable seat 20 and the upper housing 2. The trapezoidal block 21 is mounted on the movable seat 20. The lower housing 1 has an inclined surface 25 that is adapted to the trapezoidal block 21.

[0064] An air extraction chamber is formed on the upper shell 2, and an air extraction block is movably arranged in the air extraction chamber and the two are elastically connected. The air extraction chamber is connected to each airbag 22.

[0065] When the upper housing 2 is installed on the lower housing 1, the movable seat 20 can be displaced by the cooperation between the trapezoidal block 21 and the inclined surface 25. The trapezoidal block 21 can fix and lock the upper housing 2 and the lower housing 1. When the upper housing 2 needs to be disassembled to repair the battery inside the lower housing 1, the operator can push the air extraction block upward to draw the air in the airbag 22 into the air extraction chamber, thereby reducing the volume of the airbag 22. At this time, the movable seat 20 can be moved, the trapezoidal block 21 and the lower housing 1 can be separated, and the upper housing 2 and the lower housing 1 can be separated. The whole disassembly process is convenient and simple, and no auxiliary tools are required.

[0066] How this application works:

[0067] When the upper housing 2 is installed on the lower housing 1, the movable seat 20 can be displaced by the cooperation between the trapezoidal block 21 and the inclined surface 25. The trapezoidal block 21 can fix and lock the upper housing 2 and the lower housing 1. When the upper housing 2 needs to be disassembled to repair the battery inside the lower housing 1, the operator can push the air extraction block upward to draw the air in the airbag 22 into the air extraction chamber, thereby reducing the volume of the airbag 22. At this time, the movable seat 20 can be moved, the trapezoidal block 21 and the lower housing 1 can be separated, and the upper housing 2 and the lower housing 1 can be separated. The whole disassembly process is convenient and simple, and no auxiliary tools are required. When the battery inside the protective casing is working, the dual-axis motor 10 is energized and rotates. This drives the fan blades 9 to rotate, dissipating heat from the battery, and simultaneously rotates the turntable 11 synchronously. Under centrifugal force, this causes the first magnetic block 13 to move along the guide rod 12. At this time, the distance between the first magnetic block 13 and the second magnetic block 15 decreases. Under the repulsive force between the first magnetic block 13 and the second magnetic block 15, the sliding plate 14 is moved... Figure 2 The direction shown is moved upward, thereby forcing the air in cavity 17 into locking bladder 24, causing locking bladder 24 to expand and compress the cable in wire hole 23, thus completing the cable fixing work. When water seeps into the environment where the battery is located, humidity sensor 8 can control stepper motor 7 to rotate, driving take-up reel 6 to rotate synchronously, thereby winding up belt, so that sealing plate 5 is as shown. Figure 1The direction shown moves upward to seal the heat dissipation window 3, preventing water from entering the lower housing 1 through the heat dissipation window 3 and causing water seepage and damage to the battery. At the same time, it can also control the dual-axis motor 10 to operate without power. At this time, because the first magnetic block 13 and the second magnetic block 15 are no longer in the repulsion range, the slide plate 14 moves downward. At this time, the air in the locking bladder 24 is extracted, and the locking bladder 24 shrinks, creating a gap between the cable and the wire hole 23. Through this gap, the heat generated by the battery during operation can be discharged outside the protective shell in a short time. The whole device has a high degree of automation and can effectively protect the battery. Even if there is water accumulation around the protective shell, it can ensure normal heat dissipation of the battery while being waterproof.

[0068] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

[0069] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A protective casing for a sodium-ion battery, comprising a lower casing, an upper casing, and a plurality of wire holes, wherein the upper casing is detachably mounted on the lower casing, the plurality of wire holes are evenly arranged on the upper casing, and the lower casing has at least one heat dissipation window formed therein, wherein a dustproof mesh is provided inside the heat dissipation window, characterized in that, The protective shell also includes: Locking pouches, which are ring-shaped and number in number, are disposed within the wire holes; A heat dissipation module, located within the heat dissipation window, is used to dissipate heat from the battery. The heat dissipation module is connected to the locking bladder, and the air volume within the locking bladder can be adjusted when the heat dissipation module is operating. A waterproof module, installed on the lower housing, is used to monitor the humidity of the surrounding environment and control the opening and closing of the heat dissipation vents; among which... The heat dissipation module includes: The fan blades are movably mounted within the heat dissipation window; A dual-axis motor is housed within the lower housing, with one drive shaft of the motor connected to a fan blade; and An inflation unit, located within the lower housing and connected to one of the drive shafts of a dual-axis motor, is used to adjust the air volume within the locking bladder. The upper housing has a second flow channel communicating with the locking bladder, and the lower housing has a first flow channel communicating with the second flow channel. The inflation unit includes: a sliding plate, movably disposed within a cavity formed within the lower housing and elastically connected to it; the cavity communicating with the first flow channel; a turntable, movably disposed within the lower housing and connected to the other drive shaft of the dual-axis motor; and guide rods. The turntable has several drive cavities formed within it, and the guide rods are disposed within the drive cavities. Each guide rod has a first magnetic block movably disposed on it and elastically connected to it. The sliding plate has a second magnetic block that encounters and repels the first magnetic block. The waterproof module includes: a humidity sensor, mounted on the lower housing, for monitoring the humidity of the environment surrounding the lower housing; a sealing plate, movably mounted on the lower housing, the sealing plate being located on one side of the heat dissipation window; and an adjustment unit, mounted between the lower housing and the sealing plate, for adjusting the position of the sealing plate on the lower housing.

2. The sodium-ion battery protective casing according to claim 1, characterized in that, The cavity inner wall is provided with a damping strip, which slides in conjunction with the slide plate.

3. The sodium-ion battery protective casing according to claim 1, characterized in that, The adjustment unit includes a power element and a winding reel. The winding reel is movably mounted on the lower housing and connected by a belt and a sealing plate. The power element is mounted on the lower housing and its output end is connected to the winding reel.

4. The sodium-ion battery protective casing according to claim 1, characterized in that, Several sets of locking structures are provided between the upper and lower shells for fixing the lower and upper shells together.

5. The sodium-ion battery protective casing according to claim 4, characterized in that, Each locking structure includes a movable base, an airbag, and a trapezoidal block; the movable base is movably mounted on the upper housing and the two are elastically connected; the airbag is connected between the movable base and the upper housing; the trapezoidal block is mounted on the movable base; the lower housing has an inclined surface adapted to the trapezoidal block; the upper housing has an air extraction chamber; an air extraction block is movably mounted in the air extraction chamber and the two are elastically connected; the air extraction chamber and each airbag are in communication.

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