Waterproof structure of lithium battery shell of environmental sanitation tricycle

Abstract

The utility model relates to the field of lithium battery shells, in particular to a waterproof structure of a lithium battery shell of an environmental sanitation tricycle, which comprises an assembled shell and a sealing structure, the assembled shell comprises a bottom plate, side plates and a top plate, the side plates are arranged on four sides of the bottom plate, the top plate covers the tops of the side plates, and the sealing structure comprises a sealing groove and a sealing rod. The sealing structures are arranged at the joints of the bottom plate, the side plates and the top plate, drainage grooves are formed in the side plates and the bottom plate, the shells are composed of the bottom plate, the side plates and the top plate and can be flexibly adjusted according to the sizes and the shapes of the lithium batteries, and through symmetrical arrangement of clamping grooves and clamping rods, splicing of multiple sets of shells is achieved; and water drainage grooves and water drainage holes are formed in the side plates and the bottom plate, so that intrusive water can be rapidly drained, and damage to the lithium battery caused by accumulation of the water in the interior is prevented.

Description

Technical Field

[0001] The utility model relates to the field of lithium battery casings, specifically to a waterproof structure for the lithium battery casing of a sanitation tricycle. Background Art

[0002] With the popularization of electric sanitation vehicles, sanitation tricycles have become an important tool for urban cleaning work due to their flexibility and efficiency. In sanitation tricycles, lithium batteries, as the core power source, their performance stability and safety are directly related to the normal operation of sanitation work and the service life of sanitation vehicles.

[0003] In the prior art, most of the lithium battery casings carried by sanitation tricycles adopt a fixed structural design. This design can control costs to a certain extent, but many problems are exposed in actual applications. First of all, the lithium battery casings with a fixed structural design often have difficulty achieving an ideal fit when dealing with sanitation tricycles of different models and sizes. This not only affects the stability and safety of the lithium battery, but may also cause damage to the lithium battery casing due to friction, vibration, etc. between the casing and the vehicle, further threatening the service life and safety of the lithium battery.

[0004] Secondly, the lithium battery casings with a fixed structural design also have certain limitations in terms of waterproof performance. Due to the insufficient fit between the casing and the vehicle, liquids such as rainwater and sewage are likely to seep into the lithium battery through the gaps, resulting in problems such as battery short - circuit and damage. Especially in harsh weather conditions such as heavy rain and floods, this lack of waterproof performance will seriously affect the normal operation of sanitation tricycles and the smooth progress of sanitation work. Content of the Utility Model

[0005] (1) Technical Problem to be Solved

[0006] In view of the deficiencies of the prior art, the utility model provides a waterproof structure for the lithium battery casing of a sanitation tricycle.

[0007] (2) Technical Solution

[0008] To achieve the above object, the utility model provides the following technical solution: The waterproof structure of the lithium battery casing of the sanitation tricycle of the utility model includes the following components:

[0009] Assembled casing: including a bottom plate, side plates and a top plate. The side plates are arranged on the four sides of the bottom plate, the top plate covers the top of the side plates. Card slots and clamping rods are provided on the side edges of the bottom plate, and the card slots and clamping rods are symmetrically arranged on the side edges of the bottom plate. A number of mounting holes are provided on the top of the bottom plate;

[0010] Waterproof coating: A waterproof coating is applied to the outer surface of the casing to prevent moisture penetration;

[0011] Sealing structure: It includes a sealing groove and a sealing rod, and the sealing structure is arranged at the connection of the bottom plate, side plates and top plate;

[0012] Drainage system: Drainage grooves are provided inside the side plates and the bottom plate, drainage holes are provided at the bottoms of the side plates and the bottom plate, and the drainage grooves are communicated with the sealing groove and the drainage holes;

[0013] Heat dissipation holes: They are arranged on the bottom plate, and waterproof and breathable membranes are equipped on the heat dissipation holes.

[0014] Preferably, the heat dissipation holes are provided with a waterproof channel, and the waterproof channel is of a U-shaped structure.

[0015] Further preferably, the sealing groove is arranged at the top of the side plate and on the four sides of the bottom plate, the sealing rod is arranged on the four sides of the top plate and the bottom of the side plate, and a sealing rubber pad is provided at the joint of the sealing rod and the sealing groove.

[0016] Again preferably, it further includes a wire conduit, the wire conduit penetrates through the side plate, a sealing rubber pad is arranged on the inner wall of the wire conduit, and one end of the wire conduit located outside the housing is of a conical structure.

[0017] Preferably, the waterproof coating adopts any one of polyurea coatings and fluorinated polymer coatings.

[0018] Further preferably, the side plate is connected to the top plate and the bottom plate through bolt rods, the bolt rods are connected to the bottom plate, top plate and side plate through a threaded structure, and a sealing rubber cover is provided at the top of the bolt rods.

[0019] Again preferably, a sealing rubber ring is provided at the penetration of the wire conduit and the side plate.

[0020] (III) Beneficial effects

[0021] Compared with the prior art, the present utility model provides a waterproof structure for the housing of a lithium battery of a sanitation tricycle, and has the following beneficial effects:

[0022] Flexibility of the assembled housing: The housing is composed of a bottom plate, side plates and a top plate, and can be flexibly adjusted according to the size and shape of the lithium battery. Through the symmetrical arrangement of the clamping grooves and clamping rods, the assembly of multiple groups of housings can be realized.

[0023] Protection of the waterproof coating: The waterproof coating applied on the outer surface of the housing, such as polyurea coating or fluorinated polymer coating, can effectively prevent water penetration and enhance the waterproof level of the housing.

[0024] Tightness of the sealing structure: The tight combination of the sealing groove and the sealing rod forms a solid waterproof barrier, effectively preventing water from seeping in at the connection of the housing. At the same time, the sealing rubber pad arranged at the joint of the sealing groove and the sealing rod further enhances the waterproof effect.

[0025] Functionality of the drainage system: The drainage grooves and holes provided inside the side plates and the bottom plate can quickly drain the intruding moisture, preventing the moisture from accumulating inside and damaging the lithium battery.

[0026] Balance between heat dissipation holes and waterproof breathable film: The waterproof breathable film on the heat dissipation holes allows air circulation, ensuring the heat dissipation performance of the lithium battery, while preventing moisture from passing through, achieving the balance between heat dissipation and waterproofing.

[0027] Extra protection of the waterproof channel: The U-shaped waterproof channel provided on the heat dissipation holes effectively prevents moisture from directly entering the lithium battery through the heat dissipation holes, providing additional waterproof protection.

[0028] Waterproof design of the wire conduit: The design of the sealing rubber pad and the conical structure on the inner wall of the wire conduit effectively prevents moisture from entering the lithium battery through the wire conduit.

[0029] Sealing of the bolt rod connection: The side plates, top plate and bottom plate are connected by bolt rods, and the sealing rubber caps are used to prevent moisture from entering the interior of the housing through the bolt holes, further enhancing the waterproof performance of the housing.

[0030] Supplement of the sealing rubber ring: The sealing rubber ring provided at the penetration of the wire conduit and the side plate avoids the gaps generated during the penetration of the wire conduit, effectively preventing moisture from being introduced into the housing through the wire conduit.

[0031] In summary, the waterproof structure of the lithium battery housing of this sanitation tricycle realizes excellent waterproof performance and good heat dissipation performance through the designs of the assembled housing, waterproof coating, sealing structure, drainage system, heat dissipation holes and waterproof breathable film, waterproof channel, wire conduit waterproof design, bolt rod connection and sealing, and sealing rubber ring, etc., providing a solid guarantee for the stable operation of the sanitation tricycle. Brief Description of the Drawings

[0032] Figure 1 It is a schematic view of the disassembled structure of the bottom plate and side plate of the present utility model;

[0033] Figure 2 It is a schematic view of the top plate structure of the present utility model;

[0034] Figure 3 It is a schematic view of the bottom plate of the present utility model seen from below;

[0035] Figure 4 It is a schematic view of the sectional structure of the bottom plate of the present utility model;

[0036] Figure 5 It is a schematic view of the bolt rod structure of the present utility model;

[0037] In the figure: 1, bottom plate; 2, side plate; 3, top plate; 4, sealing groove; 5, drainage groove; 6, drainage hole; 7, mounting hole; 8, heat dissipation hole; 9, wire conduit; 10, sealing rubber ring; 11, waterproof channel; 12, bolt rod; 13, sealing rubber cover; 14, sealing rod. Specific embodiments

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0039] Please refer to Figures 1-5 , the waterproof structure of the lithium battery housing of the sanitation tricycle of the present invention includes the following components:

[0040] Assembled housing: including a bottom plate 1, side plates 2 and a top plate 3. The side plates 2 are arranged on the four sides of the bottom plate 1, and the top plate 3 covers the top of the side plates 2. The side of the bottom plate 1 is provided with a card slot and a clamping rod, and the card slot and the clamping rod are symmetrically arranged on the side of the bottom plate 1. The top of the bottom plate 1 is provided with a plurality of mounting holes 7;

[0041] Waterproof coating: A waterproof coating is applied to the outer surface of the housing to prevent moisture penetration;

[0042] Sealing structure: including a sealing groove 4 and a sealing rod 14. The sealing structure is arranged at the joints of the bottom plate 1, side plates 2 and top plate 3;

[0043] Drainage system: The inside of the side plates 2 and the bottom plate 1 is provided with a drainage groove 5, and the bottom of the side plates 2 and the bottom plate 1 is provided with a drainage hole 6. The drainage groove 5 is communicated with the sealing groove 4 and the drainage hole 6;

[0044] Heat dissipation hole 8: arranged on the bottom plate 1, and a waterproof and breathable film is equipped on the heat dissipation hole 8.

[0045] In the preferred solution of the waterproof structure of the lithium battery housing of the sanitation tricycle:

[0046] Design of the waterproof channel 11:

[0047] A waterproof channel 11 with a U-shaped structure is provided on the heat dissipation hole 8. This design can effectively prevent moisture from directly entering the lithium battery through the heat dissipation hole 8. When moisture contacts the U-shaped waterproof channel 11, due to the bending of the U-shaped structure, the moisture will be guided to other parts of the housing, thus avoiding direct inflow into the lithium battery.

[0048] The sealing groove 4 is combined with the sealing rod 14:

[0049] Sealing grooves 4 are provided on the top of the side plates 2 and on the four sides of the bottom plate 1, while sealing rods 14 are provided on the four sides of the top plate 3 and at the bottom of the side plates 2. A sealing gasket is provided at the joint of the sealing rod 14 and the sealing groove 4 to ensure a tight connection between the components of the housing and prevent moisture from seeping in through the gaps.

[0050] The waterproof design of the wire conduit 9:

[0051] The wire conduit 9 penetrates the side plate 2 and is used for the connection between the inside and outside of the lithium battery. A sealing rubber gasket is arranged on the inner wall of the wire conduit 9, which can prevent moisture from entering the lithium battery through the wire conduit 9. In addition, one end of the wire conduit 9 located outside the housing adopts a conical structure, which can guide the moisture to flow towards the surface of the housing instead of directly entering the wire conduit 9.

[0052] The waterproof coating:

[0053] The surface of the housing is coated with a waterproof coating, using polyurea coating or fluoropolymer coating. These coatings have good waterproof performance, can effectively prevent moisture penetration, and improve the waterproof grade of the housing.

[0054] The connection and sealing of the bolt rod 12:

[0055] The side plates 2, the top plate 3 and the bottom plate 1 are connected by bolt rods 12, and the bolt rods 12 are tightly connected to the bottom plate 1, the top plate 3 and the side plates 2 through a threaded structure. A sealing rubber cover 13 is provided at the top of the bolt rod 12, which can prevent moisture from entering the housing through the bolt holes.

[0056] The sealing rubber ring 10:

[0057] A sealing rubber ring 10 is provided at the penetration of the wire conduit 9 and the side plate 2 to prevent gaps from being generated at the penetration when the wire conduit 9 penetrates the side plate 2, and to prevent moisture from being introduced into the housing through the wire conduit 9.

[0058] The waterproof structure of the lithium battery housing of the sanitation tricycle of the present utility model achieves excellent waterproof performance through a series of innovative designs, ensuring the stable operation of the lithium battery in harsh environments. The following are the main components of the waterproof structure and their working principles:

[0059] The assembled housing:

[0060] The housing is composed of a bottom plate 1, side plates 2 and a top plate 3. The side plates 2 are arranged on the four sides of the bottom plate 1, and the top plate 3 covers the top of the side plates 2.

[0061] On the side of the bottom plate 1, there are card slots and card rods, which are symmetrically arranged, providing a stable connection method between the components of the housing. At the same time, several mounting holes 7 are provided on the top of the bottom plate 1 for fixing the lithium battery inside the housing. This design enables the housing to waterproof and seal a single group of batteries, and at the same time allows several housings to be assembled through the adaptation of the sealing rod 14 and the sealing groove 4, allowing the housing to be flexibly adjusted according to the size and shape of the lithium battery.

[0062] Waterproof coating:

[0063] A waterproof coating is applied on the outer surface of the housing. This coating can effectively prevent water penetration and protect the lithium battery inside the housing from the humid environment.

[0064] Sealing structure:

[0065] It includes a sealing groove 4 and a sealing rod 14, which are arranged at the joints of the bottom plate 1, the side plate 2 and the top plate 3. The sealing rod 14 is tightly combined with the sealing groove 4 to form a waterproof barrier, further preventing water from seeping in from the joints of the housing.

[0066] Drainage system:

[0067] Drainage grooves 5 are provided inside the side plate 2 and the bottom plate 1, and drainage holes 6 are provided at the bottom. When water invades the joints of the side plate 2 and the top plate 3 and the bottom plate 1, the water will flow into the drainage grooves 5 and be discharged from the housing through the drainage holes 6, thus preventing water from accumulating inside and damaging the lithium battery.

[0068] Heat dissipation holes 8:

[0069] The heat dissipation holes 8 are provided on the bottom plate 1 for the heat dissipation of the lithium battery. To prevent water from entering the housing through the heat dissipation holes 8, a waterproof breathable membrane is equipped on the heat dissipation holes 8. This membrane material allows air to circulate while preventing water from passing through, ensuring the balance between the heat dissipation performance and the waterproof performance of the lithium battery.

[0070] In summary, the waterproof structure of the lithium battery housing of this sanitation tricycle realizes excellent waterproof performance and good heat dissipation performance through the design of a modular housing, a waterproof coating, a sealing structure, a drainage system and heat dissipation holes 8, etc., providing a strong guarantee for the stable operation of the sanitation tricycle.

[0071] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The waterproof structure of the lithium battery shell of the sanitation tricycle is characterized by: Includes the following components: The modular housing comprises a bottom plate (1), a side plate (2) and a top plate (3), wherein the side plates (2) are arranged on four sides of the bottom plate (1), the top plate (3) covers the top of the side plates (2), a card slot and a card rod are arranged on the side of the bottom plate (1), and the card slot and the card rod are symmetrically arranged on the side of the bottom plate (1), and a plurality of mounting holes (7) are arranged on the top of the bottom plate (1); Waterproof coating: Apply a waterproof coating to the outer surface of the shell to prevent water penetration; A sealing structure comprising a sealing groove (4) and a sealing rod (14), wherein the sealing structure is arranged at the connection between the bottom plate (1), the side plate (2) and the top plate (3); Drainage system: Drainage grooves (5) are provided inside the side plate (2) and the bottom plate (1), drainage holes (6) are provided at the bottom of the side plate (2) and the bottom plate (1), and the drainage grooves (5) are connected to the sealing grooves (4) and the drainage holes (6); Heat dissipation hole (8): arranged on the bottom plate (1), the heat dissipation hole (8) is equipped with a waterproof and breathable membrane.

2. The waterproof structure of the lithium battery housing of a sanitation tricycle according to claim 1, characterized in that: The heat dissipation hole (8) is provided with a waterproof channel (11), and the waterproof channel (11) is a U-shaped structure.

3. The waterproof structure of the lithium battery housing of the sanitation tricycle according to claim 2 is characterized in that: The sealing groove (4) is arranged on the top of the side plate (2) and the four sides of the bottom plate (1), the sealing rod (14) is arranged on the four sides of the top plate (3) and the bottom of the side plate (2), and a sealing rubber pad is provided at the joint between the sealing rod (14) and the sealing groove (4).

4. The waterproof structure of the lithium battery housing of the sanitation tricycle according to claim 3 is characterized in that: It also includes a wire tube (9), which passes through the side plate (2), a sealing rubber pad is arranged on the inner wall of the wire tube (9), and one end of the wire tube (9) located outside the shell is a conical structure.

5. The waterproof structure of the lithium battery housing of a sanitation tricycle according to claim 4, characterized in that: The waterproof coating is any one of polyurea coating and fluorinated polymer coating.

6. The waterproof structure of the lithium battery housing of a sanitation tricycle according to claim 5, characterized in that: The side plate (2) is connected to the top plate (3) and the bottom plate (1) via a bolt rod (12); the bolt rod (12) is connected to the bottom plate (1), the top plate (3) and the side plate (2) via a threaded structure; a sealant cover (13) is provided on the top of the bolt rod (12).

7. The waterproof structure of the lithium battery housing of a sanitation tricycle according to claim 6, characterized in that: A sealing rubber ring (10) is provided at the penetration point between the wire tube (9) and the side plate (2).

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