Electric vehicle battery box with waterproof function

Abstract

The application relates to the technical field of electric vehicles, in particular to a waterproof electric vehicle battery box, which comprises an outer box, an inner box is fixedly inserted in the outer box, drying cavities are arranged in the outer box on the two sides of the inner box, a plurality of holes are arranged in the side walls of the inner box in the two drying cavities, baffles are fixedly arranged in the drying cavities on the two sides of the holes, and drying agents are filled in the two baffles. When the application is used, the drying agents are used to ensure the dryness of air in the inner box, so that the condensation of water vapor in the inner box in a relatively cold environment is avoided, the oxidation and rust of the conductive parts of the batteries in the inner box are avoided, the waterproof effect of the inner box for the batteries is greatly improved, the batteries can ensure the power supply of the electric vehicle, and the safety of the electric vehicle is improved.

Description

Technical Field

[0001] This invention relates to the field of electric vehicle technology, and more particularly to a waterproof electric vehicle battery box. Background Technology

[0002] The battery box is an essential component of electric vehicles. In actual use, the battery box protects the electric vehicle's battery. Although it waterproofs the battery, the waterproof vent valve on the battery box can only prevent condensation from entering the battery box, but it cannot prevent water vapor from entering. Water vapor inside the battery box will condense in a cold environment. Condensation can easily cause oxidation and rust on the conductive components of the battery inside the battery box. This will greatly reduce the effectiveness of the battery box in waterproofing the battery, directly affecting the battery's power supply to the electric vehicle and reducing the safety of the electric vehicle. Therefore, a waterproof electric vehicle battery box is needed to meet this requirement. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing battery boxes in terms of incomplete waterproofing, and to propose a waterproof electric vehicle battery box.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: Design a waterproof electric vehicle battery box, including an outer box, an inner box inserted and fixed inside the outer box, a drying chamber provided in the outer box on both sides of the inner box, multiple holes penetrating the side walls of the inner box in both drying chambers, a partition fixed in the drying chamber on both sides of the holes, and a desiccant filled in the two partitions.

[0005] Preferably, a filter screen is fixed in each of the holes.

[0006] Preferably, the desiccant is a particulate desiccant, and the mesh size of the filter screen is smaller than the particles of the desiccant.

[0007] Preferably, the desiccant is made of color-changing silica gel.

[0008] Preferably, the outer box is provided with a box cover, and the box cover and the outer box are provided with a sealing mechanism.

[0009] Preferably, the sealing mechanism includes two insert blocks, both of which are fixed on the box cover, and both of which are fixedly provided with sealing gaskets. The two sealing gaskets are in contact with the inner sidewalls of the two drying chambers respectively, and the insert blocks and the outer box are provided with a fixing component.

[0010] Preferably, each of the insert blocks is fixed with a connecting rod, the connecting rod passing through the sealing gasket and fixed with an insert plate, the insert plate being inserted between the two partitions filled with the desiccant.

[0011] Preferably, a stirring assembly is fixed on the insert plate.

[0012] Preferably, the stirring assembly includes a first connecting rope, which is fixed to the insert plate. A first fixing block is fixed to the first connecting rope, a second fixing block is fixed to the first fixing block, a second connecting rope is fixed to the second fixing block, and the second connecting rope is fixed to the outer casing.

[0013] Preferably, both the second fixing block and the first fixing block are conical structures, and the apex of the second fixing block and the apex of the first fixing block are fixed together.

[0014] The present invention proposes a waterproof electric vehicle battery box, which has the following advantages: During use, the cooperation of two sealing gaskets and two insert blocks allows the fixing components to secure the box cover to the outer casing without affecting the sealing of the inner casing and the two drying chambers. Water vapor entering the inner casing through the waterproof vent valve is absorbed by the desiccant through multiple pores, ensuring the air inside the inner casing remains dry. This prevents condensation of water vapor in cold environments and avoids oxidation and rusting of the conductive components of the battery inside the inner casing. This significantly improves the waterproofing effect of the inner casing, ensuring the battery can power the electric vehicle and increasing the safety of the electric vehicle. Attached Figure Description

[0015] Figure 1 This is a front view of a waterproof electric vehicle battery box proposed in this invention; Figure 2 This is a right view of a waterproof electric vehicle battery box proposed in this invention. Figure 3 This is a top view of a waterproof electric vehicle battery box proposed in this invention.

[0016] In the diagram: outer box 1, inner box 2, hole 3, filter screen 4, partition 5, box cover 6, insert block 7, sealing gasket 8, threaded hole 9, bolt 10, connecting rod 11, insert plate 12, first connecting rope 13, first fixing block 14, second fixing block 15, second connecting rope 16, drying chamber 17. Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Example

[0018] Reference Figure 1-3 A waterproof electric vehicle battery box includes an outer box 1, with an inner box 2 inserted and fixed inside the outer box 1. The battery that supplies power to the electric vehicle is fixedly placed in the inner box 2. The cooperation between the outer box 1 and the inner box 2 increases the protection of the battery. Both sides of the outer box 1 on both sides of the inner box 2 are provided with drying chambers 17. Two opposite sides of the four sides of the inner box 2 are directly fixed to the inner side wall of the outer box 1, while there are gaps between the other two opposite sides of the four sides of the inner box 2 and the inner side wall of the outer box 1. These two gaps are the two drying chambers 17. The drying chambers 17 are used to dry the air inside the inner box 2, ensuring that the conductive components of the battery inside the inner box 2 do not oxidize or rust. Multiple holes 3 are provided through the side walls of the inner chamber 2 in both drying chambers 17. Partitions 5 are fixed in both drying chambers 17 on both sides of the holes 3. The two partitions 5 are filled with desiccant, which is made of color-changing silica gel. The color-changing silica gel desiccant can remind people in time when testing the desiccant, so that people can replace the desiccant in time, ensuring the drying effect of the desiccant, ensuring the service life of the desiccant, and avoiding waste of the desiccant. Each hole 3 is fitted with a filter screen 4. The desiccant is a granular desiccant, and the mesh size of the filter screen 4 is smaller than the desiccant particles. The filter screen 4 prevents the granular desiccant from entering the inner box 2 through the holes 3. The outer box 1 is equipped with a lid 6. The lid 6 and the outer box 1 are equipped with a sealing mechanism to ensure the seal between the lid 6 and the outer box 1 and the inner box 2. Although the waterproof and breathable valve may allow water vapor to enter the inner box 2, the desiccant will dry it out.

[0019] Working principle: During use, a sealing mechanism is used to fix the cover 6 to the outer box 1. Although the sealing mechanism is helpful, water vapor cannot be prevented from entering the inner box 2 through the waterproof vent valve. The water vapor in the inner box 2 is absorbed by the desiccant through multiple holes 3. The desiccant is used to ensure that the air in the inner box 2 is dry, thereby preventing the water vapor in the inner box 2 from forming condensation in a cold environment. This also prevents the conductive components of the battery inside the inner box 2 from oxidizing and rusting. This greatly improves the waterproof effect of the inner box 2 for the battery, ensures that the battery can supply power to the electric vehicle, and increases the safety of the electric vehicle. Example

[0020] Based on Example 1, referring to Figure 1-3 As another preferred embodiment of the present invention, the difference from embodiment 1 is that the sealing mechanism includes two insert blocks 7, both insert blocks 7 are fixed on the box cover 6, and both insert blocks 7 are fixedly provided with sealing gaskets 8. The two sealing gaskets 8 are respectively in contact with the inner sidewalls of the two drying chambers 17. The insert blocks 7 and the outer box 1 are jointly provided with fixing components. When the two insert blocks 7 are respectively inserted into the two drying chambers 17, the sealing between the two insert blocks 7 and the two drying chambers 17 can be ensured by the setting of the two sealing gaskets 8.

[0021] The fixing component includes multiple threaded holes 9 and multiple bolts 10. The multiple threaded holes 9 are all located on the insert block 7, and the multiple bolts 10 pass through the outer casing 1 and are threaded into the multiple threaded holes 9 respectively. Although the sealing gasket 8 is fixed on the insert block 7, it does not completely cover the insert block 7. The exposed part of the insert block 7 is used for the multiple threaded holes 9 and multiple bolts 10. This can fix the insert block 7 to the outer casing 1 without affecting the sealing between the outer casing 1 and the casing cover 6.

[0022] Each insert block 7 is fixed with a connecting rod 11, which passes through the sealing gasket 8 and is fixed with an insert plate 12. The insert plate 12 is inserted between two partitions 5 filled with desiccant. The insert plate 12 is used to block the desiccant between the two partitions 5. When the box cover 6 is removed from the outer box 1, the insert plate 12 can be taken out of the two partitions 5, exposing the desiccant between the two partitions 5, making it easy for people to check the desiccant and replace it in time.

[0023] Working principle: When in use, when the cover 6 is placed on the outer box 1, the two insert blocks 7 are respectively inserted into the two drying chambers 17. With the assistance of the two sealing gaskets 8, the airtightness of the two drying chambers 17 is ensured. The cover 6 can be detachably fixed to the outer box 1 by the cooperation of multiple threaded holes 9 and multiple bolts 10. When the cover 6 is removed from the outer box 1, the multiple insert plates 12 can be pulled out by the fixation of multiple connecting rods 11, exposing the desiccant in multiple places in the two drying chambers 17, which provides convenience for people to inspect and replace the desiccant. Example

[0024] In Example 2, the amount of desiccant in contact with the hole 3 is fixed, and the moisture absorption capacity of this portion of the desiccant is also fixed. Once saturated, it loses its drying function. Furthermore, the remaining desiccant's moisture absorption capacity is significantly reduced due to the obstruction of this saturated portion. (Refer to...) Figure 1 and 2As another preferred embodiment of the present invention, the difference from embodiment 1 is that a stirring assembly is fixed on the insert plate 12. The stirring assembly is used to stir the desiccant between the two partitions 5 so that the desiccant can provide the maximum effect and at the same time avoid the waste of the desiccant.

[0025] The stirring assembly includes a first connecting rope 13, which is fixed to the insert plate 12. A first fixing block 14 is fixed to the first connecting rope 13, a second fixing block 15 is fixed to the first fixing block 14, and a second connecting rope 16 is fixed to the second fixing block 15. The second connecting rope 16 is fixed to the outer casing 1. Both the second connecting rope 16 and the first connecting rope 13 are elastic and will not delay the insertion plate 12 from being pulled out of the drying chamber 17. During normal use, under the action of gravity, the first connecting rope 13 is in a taut state, while the second connecting rope 16 is in a bent state. Both the second fixing block 15 and the first fixing block 14 are conical structures, and the apex of the second fixing block 15 and the apex of the first fixing block 14 are fixed together.

[0026] Working principle: When in use, the second connecting rope 16 and the first connecting rope 13 are used to limit the position of the second fixing block 15 and the first fixing block 14 inserted in the desiccant. When the electric car is driving on a flat road, there will be almost no bumps. At this time, under the action of gravity, the first connecting rope 13 is in a taut state, while the second connecting rope 16 is in a bent state. When an electric vehicle travels on a bumpy road, it will inevitably experience bumps. During these bumps, the second fixing block 15 and the first fixing block 14 will move upwards due to inertia, and then move downwards due to gravity. As they move upwards, the second connecting rope 16 gradually straightens and the first connecting rope 13 gradually bends. When the second fixing block 15 and the first fixing block 14 move up and down, the desiccant can be agitated without additional power, allowing the desiccant to change position and enabling more desiccant to come into contact with the holes 3, thus improving the effectiveness of the desiccant and avoiding waste.

[0027] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A waterproof battery box for electric vehicles, comprising an outer casing (1), characterized in that, An inner box (2) is inserted and fixed inside the outer box (1). A drying chamber (17) is provided in the outer box (1) on both sides of the inner box (2). Multiple holes (3) are provided through the side walls of the inner box (2) in the two drying chambers (17). A partition (5) is fixed in the drying chamber (17) on both sides of the holes (3). The two partitions (5) are filled with desiccant. The outer box (1) is provided with a box cover (6), and the box cover (6) and the outer box (1) are provided with a sealing mechanism. The sealing mechanism includes two insert blocks (7), both insert blocks (7) are fixed on the box cover (6), and both insert blocks (7) are fixed with sealing gaskets (8). The two sealing gaskets (8) are respectively in contact with the inner sidewalls of the two drying chambers (17). The insert blocks (7) and the outer box (1) are provided with a fixing component. Each insert block (7) is fixed with a connecting rod (11). The connecting rod (11) passes through the sealing gasket (8) and is fixed with an insert plate (12). The insert plate (12) is inserted between the two partitions (5) filled with the desiccant. A stirring assembly is fixed on the insert plate (12). The stirring assembly includes a first connecting rope (13), which is fixed on the insert plate (12). A first fixing block (14) is fixed on the first connecting rope (13), and a second fixing block (15) is fixed on the first fixing block (14). A second connecting rope (16) is fixed on the second fixing block (15), and the second connecting rope (16) is fixed on the outer casing (1).

2. The waterproof electric vehicle battery box according to claim 1, characterized in that, Each of the holes (3) is fitted with a filter screen (4).

3. The waterproof electric vehicle battery box according to claim 2, characterized in that, The desiccant is a particulate desiccant, and the mesh size of the filter screen (4) is smaller than the particles of the desiccant.

4. The waterproof electric vehicle battery box according to claim 3, characterized in that, The desiccant is made of color-changing silica gel.

5. The waterproof electric vehicle battery box according to claim 1, characterized in that, Both the second fixing block (15) and the first fixing block (14) are conical structures, and the apex of the second fixing block (15) and the apex of the first fixing block (14) are fixed together.

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