Waterproof structure of battery compartment of electric power-assisted bicycle
By designing a sealing cover, sealing ring and spring-driven extrusion plate structure in the battery compartment of an electric assisted bicycle, the problem of rainwater infiltration is solved, high sealing of the battery compartment is achieved, and battery safety is ensured.
Patent Information
- Application Number
- CN202423266192.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-30
AI Technical Summary
The battery compartment of the existing electric power-assisted bicycle is easily penetrated by rainwater through the gaps in the top cover on rainy days, affecting the safety of the battery.
A waterproof structure including a sealing cover, a sealing ring, a pull rod, a lifting plate and a spring is designed. The sealing cover fits tightly with the warehouse body, and the spring is used to push the extrusion plate close to the inner wall to enhance the sealing. A water-blocking and breathable membrane is set at the breathable fixing frame to prevent moisture from entering.
It effectively reduces rainwater from entering the compartment through the top gap, improves the sealing of the battery compartment, and protects the safety of the battery.
Smart Images

Figure CN223479219U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery compartment waterproofing technology, specifically a waterproof structure for the battery compartment of an electric bicycle. Background Technology
[0002] The battery compartment of an e-bike is the space for installing and storing batteries, and it is usually designed in a suitable location on the e-bike.
[0003] Some existing battery compartments have a top cover. When the battery needs to be replaced, it can be replaced by opening the top cover. In rainy weather, rainwater may seep into the compartment through the gaps between the side of the top cover and the top of the compartment, affecting the battery. Therefore, it is necessary to develop a waterproof structure for the battery compartment of electric bicycles. Utility Model Content
[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.
[0005] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:
[0006] A waterproof structure for the battery compartment of an electric-assist bicycle, comprising:
[0007] The container body is a box with an open top. The top of the container body is provided with a sealing cover that fits to cover the container body. The bottom of the sealing cover is provided with a sealing layer that fits tightly against the upper edge of the container body. The bottom of the sealing cover is provided with an elastic sealing ring that fits against the inner side wall of the container body.
[0008] The top wall of the chamber is slidably connected to two vertical pull rods. The lower ends of the two pull rods are fixed to an "I"-shaped lifting plate. A vertical spring is provided between the top of the lifting plate and the bottom wall of the sealing cover. A connecting rod is hinged to the outer walls of the lifting plate. The other end of the connecting rod is hinged to a pressing plate that presses the inner side of the sealing ring.
[0009] A screw rod is threaded through the center of the top wall of the sealing cover, and a pressure plate is provided at the bottom of the screw rod below the lifting plate via a bearing seat.
[0010] As a preferred embodiment of the waterproof structure for the battery compartment of an electric-assisted bicycle described in this utility model, the front and rear side walls of the sealing cover are symmetrically hinged with connecting plates, and the connecting plates are equipped with locks.
[0011] As a preferred embodiment of the waterproof structure of the battery compartment of an electric-assisted bicycle described in this utility model, a breathable fixing frame is fixedly installed at the lower position of the inner cavity of the compartment, a breathable hole is opened at the bottom of the compartment, and a water-resistant and breathable membrane is fixedly installed between the breathable fixing frame and the breathable hole in the inner cavity of the compartment.
[0012] As a preferred embodiment of the waterproof structure for the battery compartment of an electric-assisted bicycle described in this utility model, the side wall of the compartment has a wire hole, and a sealing ring is provided on the inner side of the wire hole.
[0013] As a preferred embodiment of the waterproof structure for the battery compartment of an electric-assisted bicycle described in this utility model, the bottom wall of the sealing cover is fixedly provided with a fixing frame parallel to the extrusion plate, and the side wall of the fixing frame is slidably provided with a limiting guide rod perpendicular to the extrusion plate, one end of the limiting guide rod being fixed at the center of the side wall of the extrusion plate.
[0014] As a preferred embodiment of the waterproof battery compartment structure for an electric-assisted bicycle described in this utility model, a handle is provided at the top of both pull rods.
[0015] As a preferred embodiment of the waterproof structure for the battery compartment of an electric-assisted bicycle described in this utility model, the bottom of the pressure plate is provided with a rubber layer, the top of the screw is fixedly provided with a knob, and the center of the lifting plate has a through hole for the screw body to pass through.
[0016] As a preferred embodiment of the waterproof structure for the battery compartment of an electric-assisted bicycle described in this utility model, the bottom of the sealing cover is provided with a vertical guide cylinder protruding and fixedly arranged around its perimeter, and the top of the pressure plate is provided with a guide post that is aligned with and fits to slide into the guide cylinder.
[0017] The beneficial effects of this utility model are: after the sealing cover is closed and locked, the sealing layer at the bottom is tightly attached to the upper edge of the compartment, which improves the sealing performance of the top of the compartment. In addition, the spring applies a downward thrust to the lifting plate, which causes the connecting rod to push the extrusion plate, so that the extrusion plate can tightly attach the sealing ring to the inner side wall of the compartment, further improving the sealing performance of the top of the compartment and reducing the seepage of rainwater into the interior of the compartment through the gap between the side of the sealing cover and the top of the compartment, thus affecting the battery. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0019] Figure 1 It is a structural diagram of the utility model;
[0020] Figure 2 This is a schematic diagram of the internal components of the hopper body of this utility model;
[0021] Figure 3 This is an exploded view of the sealing cap and pressure plate of this utility model;
[0022] Figure 4 This utility model Figure 3 A schematic diagram of the structure viewed from the side (upward angle);
[0023] Figure 5 This is a top view of the structure of some components of this utility model;
[0024] Figure 6 This is a schematic diagram of the structure of the pull rod, lifting plate and spring of this utility model.
[0025] In the diagram: 100, sealing cover 101, sealing ring 102, connecting plate 103, ventilated fixing frame 104, ventilated fine hole 105, water-resistant and ventilated membrane 106, wire hole 107, pull rod 200, lifting plate 201, spring 202, connecting rod 203, extrusion plate 204, fixing frame 205, limit guide rod 206, handle 207, screw 300, pressure plate 301, knob 302, screw hole 303, guide cylinder 304, guide column 305, through hole 306. Detailed Implementation
[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0028] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.
[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0030] Please see Figures 1-6 The diagram shown is a structural schematic of an embodiment of a waterproof battery compartment structure for an electric-assisted bicycle according to this utility model. Please refer to [link / reference]. Figures 1-6 This paper provides a detailed description of a waterproof structure for the battery compartment of an electric-assisted bicycle.
[0031] A waterproof battery compartment structure for an electric-assist bicycle includes a compartment body 100, which is a box with an open top. The top of the compartment body 100 is provided with a sealing cover 101 that fits to cover the compartment body 100. The bottom of the sealing cover 101 is provided with a sealing layer that is in close contact with the upper edge of the compartment body 100. The bottom of the sealing cover 101 is provided with an elastic sealing ring 102 that fits the inner sidewalls of the compartment body 100.
[0032] Two vertical tie rods 200 are slidably installed through the top wall of the chamber 100. The lower ends of the two tie rods 200 are fixedly installed with an "I"-shaped lifting plate 201. A vertical spring 202 is installed between the top of the lifting plate 201 and the bottom wall of the sealing cover 101. A connecting rod 203 is hinged to the outer walls of the lifting plate 201. The other end of the connecting rod 203 is hinged to a pressing plate 204 on the inner side of the pressing sealing ring 102.
[0033] A vertical screw 300 is screwed through the center of the top wall of the sealing cover 101. The bottom of the screw 300 is located below the lifting plate 201 and a pressure plate 301 is provided through a bearing seat. The height of the pressure plate 301 can be adjusted by rotating the screw 300 so that the bottom of the pressure plate 301 rests on the top of the battery to stabilize the battery.
[0034] Wherein: the front and rear side walls of the sealing cover 101 are symmetrically hinged with connecting plates 103, and the connecting plates 103 are equipped with locks to lock the sealing cover 101 onto the chamber body 100.
[0035] Wherein: a ventilated fixing frame 104 is fixedly installed at the lower position of the inner cavity of the chamber 100, the battery is placed on the top of the ventilated fixing frame 104, and an elastic protective layer is provided at the gap between the inner cavity sidewalls of the chamber 100 and the battery. A ventilated fine hole 105 is opened at the bottom of the chamber 100. A water-resistant and breathable membrane 106 is fixedly installed between the ventilated fixing frame 104 and the ventilated fine hole 105 in the inner cavity of the chamber 100. Heat is dissipated through the ventilated fine hole 105, and the water-resistant and breathable membrane 106 can only allow gas to flow, while liquid cannot pass through the water-resistant and breathable membrane 106, thereby reducing the impact of water on the battery through the ventilated fixing frame 104.
[0036] Wherein: the side wall of the compartment 100 has a wire hole 107, and a sealing ring is provided on the inner side of the wire hole 107. The battery is installed inside the compartment 100. The wire passes through the wire hole 107 and is connected to the connector. The gap between the wire and the wire hole 107 is filled with a sealing ring to reduce the amount of water entering the compartment 100 through the wire hole 107.
[0037] Wherein: a fixing frame 205 parallel to the extrusion plate 204 is fixedly provided around the bottom wall of the sealing cover 101. A limiting guide rod 206 perpendicular to the extrusion plate 204 is slidably provided through the side wall of the fixing frame 205. One end of the limiting guide rod 206 is fixed at the center of the side wall of the extrusion plate 204. When the lifting plate 201 is raised or lowered, the fixing frame 205 and the limiting guide rod 206 make the extrusion plate 204 only move away from or closer to the sealing ring 102.
[0038] Among them, the tops of the two pull rods 200 are hinged together with handles 207, so that when it is necessary to open the sealing cover 101, the pull rods 200 can be easily pulled up by the handles 207;
[0039] Wherein: the bottom of the pressure plate 301 is provided with a rubber layer, the top of the screw 300 is fixedly provided with a knob 302, and the center of the lifting plate 201 is provided with a through hole 306 for the screw 300 to pass through the gap between the rod body and the screw 300. The knob 302 is used to easily turn the screw 300 to rotate.
[0040] Wherein: the bottom of the sealing cover 101 is fixedly provided with a vertical guide cylinder 304 protruding around the perimeter, and the top of the pressure plate 301 is fixedly provided with a guide post 305 that is aligned with and slides into the guide cylinder 304. Since the bottom of the screw 300 is rotatably connected to the top center of the pressure plate 301 through the bearing seat, the provided guide post 305 and guide cylinder 304 can ensure that the pressure plate 301 will only move up and down.
[0041] In practical use, the battery is placed on top of the ventilated mounting bracket 104. The height of the pressure plate 301 is adjusted by rotating the screw 300, so that the bottom of the pressure plate 301 rests against the top of the battery, stabilizing the battery. After the sealing cover 101 is covered and locked, the sealing layer at its bottom is tightly attached to the upper edge of the compartment 100, improving the sealing performance of the top of the compartment 100. Furthermore, the spring 202 applies a downward pushing force to the lifting plate 201, causing the connecting rod 203 to push the extrusion plate 204, so that the extrusion plate 204 can tightly attach the sealing ring 102 to the inner side wall of the compartment 100, further improving the sealing performance of the top of the compartment 100 and reducing the seepage of rainwater into the interior of the compartment 100 through the gap between the side of the sealing cover 101 and the top of the compartment 100, thus preventing damage to the battery.
[0042] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A waterproof structure for the battery compartment of an electric-assisted bicycle, characterized in that, include: The container (100) is a box with an open top. The top of the container (100) is provided with a sealing cover (101) that fits to cover the container (100). The bottom of the sealing cover (101) is provided with a sealing layer that fits tightly against the upper edge of the container (100). The bottom of the sealing cover (101) is provided with an elastic sealing ring (102) that fits the inner sidewalls of the container (100). Pull rods (200): Two vertical pull rods (200) are slidably installed through the top wall of the chamber (100). The lower ends of the two pull rods (200) are fixedly provided with an "I"-shaped lifting plate (201). A vertical spring (202) is provided between the top of the lifting plate (201) and the bottom wall of the sealing cover (101). A connecting rod (203) is hinged to the outer walls of the lifting plate (201). The other end of the connecting rod (203) is hinged to a pressing plate (204) inside the pressing sealing ring (102). A screw (300) is screwed through the center of the top wall of the sealing cover (101). The bottom of the screw (300) is located below the lifting plate (201) and a pressure plate (301) is provided through a bearing seat.
2. The waterproof structure for the battery compartment of an electric-assisted bicycle according to claim 1, characterized in that: The sealing cover (101) has connecting plates (103) symmetrically hinged to its front and rear side walls, and the connecting plates (103) are equipped with locks.
3. The waterproof structure for the battery compartment of an electric-assisted bicycle according to claim 1, characterized in that: A breathable fixing frame (104) is fixedly installed at the lower part of the inner cavity of the chamber (100), and a breathable fine hole (105) is opened at the bottom of the chamber (100). A water-resistant and breathable membrane (106) is fixedly installed between the breathable fixing frame (104) and the breathable fine hole (105) in the inner cavity of the chamber (100).
4. The waterproof structure for the battery compartment of an electric-assisted bicycle according to claim 1, characterized in that: The side wall of the compartment (100) has a wire hole (107), and a sealing ring is provided on the inner side of the wire hole (107).
5. The waterproof structure for the battery compartment of an electric-assisted bicycle according to claim 1, characterized in that: The bottom wall of the sealing cover (101) is fixedly provided with a fixing frame (205) parallel to the extrusion plate (204). The side wall of the fixing frame (205) is slidably provided with a limiting guide rod (206) perpendicular to the extrusion plate (204). One end of the limiting guide rod (206) is fixed at the center of the side wall of the extrusion plate (204).
6. The waterproof structure for the battery compartment of an electric-assisted bicycle according to claim 1, characterized in that: The tops of the two pull rods (200) are hinged together with handles (207).
7. The waterproof structure for the battery compartment of an electric-assisted bicycle according to claim 1, characterized in that: The bottom of the pressure plate (301) is provided with a rubber layer, the top of the screw (300) is fixedly provided with a knob (302), and the center of the lifting plate (201) is provided with a through hole (306) for the screw (300) to pass through the gap.
8. The waterproof structure for the battery compartment of an electric-assisted bicycle according to claim 1, characterized in that: The bottom of the sealing cap (101) is provided with a vertical guide cylinder (304) protruding and fixed around the perimeter, and the top of the pressure plate (301) is provided with a guide post (305) that is aligned with and fits to slide into the guide cylinder (304).