Speed regulation instrument of electric bicycle

Abstract

The utility model discloses an electric bicycle speed regulation instrument, which comprises a main body mounting piece, an instrument is arranged at the top of the main body mounting piece, a speed regulation handle is rotatably arranged in the middle of the front surface of the main body mounting piece, the instrument comprises a transparent surface shell, a middle shell, a bottom shell, a circuit board, a display screen and a waterproof silica gel key, and the bottom shell is arranged at the top of the main body mounting piece. The transparent face shell is arranged on the bottom shell, the middle shell is arranged between the transparent face shell and the bottom shell, sealant is arranged at the edge connecting positions of the transparent face shell, the middle shell and the bottom shell, the circuit board is arranged in the middle shell, the display screen is arranged between the circuit board and the middle shell, a visible window is formed in the position, right opposite to the display screen, of the middle shell, and a key installation groove is formed in the middle shell. According to the utility model, through the cooperation among the transparent surface shell, the middle shell and the bottom shell, and the arrangement of the sealant and the waterproof silica gel keys at the edge joints, the waterproof capability of the whole instrument is greatly enhanced.

Description

Technical Field

[0001] This utility model relates to the field of electric bicycle technology, specifically to an electric bicycle speed control instrument. Background Technology

[0002] With the increasing prevalence of electric bicycles and cars, people are paying more and more attention to safe travel. Accidents involving electric bicycles are also frequent, often due to riders' inability to control the speed and adjust it in time. While the handlebars of a typical electric bicycle can rotate to accelerate, and the brakes are located near the handlebars to decelerate, riders often grip the handlebars tightly when stressed, such as just before an accident. This tight grip keeps the electric bicycle in a state of constant acceleration, preventing timely speed adjustments and leading to accidents.

[0003] To address the aforementioned issues, Chinese utility model patent CN205872337U discloses a display speed controller for electric-assisted bicycles, which can display the operating speed of the electric-assisted bicycle and facilitate the driver to issue a speed adjustment signal in a timely manner.

[0004] However, the aforementioned display speed controller for electric bicycles has poor waterproof performance at the buttons and other points of contact with the outside world. Rainwater can easily enter the product during rainy days, causing short circuits and circuit board failures. This can affect the normal operation of the display speed controller, reduce its reliability and service life, and may even cause new safety hazards during vehicle operation due to display speed controller failure. Utility Model Content

[0005] In order to overcome the problem of poor waterproof performance of existing electric bicycle speed controllers, this utility model provides an electric bicycle speed control instrument.

[0006] The technical solution of this utility model is as follows:

[0007] An electric bicycle speed control instrument includes a main mounting component. An instrument is mounted on the top of the main mounting component, and a speed control handle is rotatably mounted on the center of the front of the main mounting component. The instrument includes a transparent front shell, a middle shell, a bottom shell, a circuit board, a display screen, and waterproof silicone buttons. The bottom shell is located on top of the main mounting component, the transparent front shell is mounted on the bottom shell, the middle shell is located between the transparent front shell and the bottom shell, and sealant is applied to the edges where the transparent front shell connects to the middle shell and the bottom shell. The circuit board is located inside the middle shell, and the display screen is located inside the middle shell. Between the circuit board and the middle shell, a viewing window is provided on the middle shell facing the display screen. A button mounting groove is provided on the middle shell. The waterproof silicone button includes an elastic sealing ring, a pressing part, and a contact part. The elastic sealing ring is disposed in the button mounting groove. The pressing part is disposed on the upper part of the elastic sealing ring, and the upper part of the pressing part is exposed through the transparent shell. An inner cavity is formed between the pressing part and the elastic sealing ring. The contact part is disposed at the bottom of the inner cavity. The lower part of the contact part passes through the button mounting groove and contacts the button module on the circuit board.

[0008] As a preferred embodiment of this utility model, the transparent shell has a first opening for the pressing part to pass through, and the outer wall of the pressing part is in close contact with the inner wall of the first opening. The bottom of the button mounting groove has a second opening for the contact part to pass through.

[0009] As a preferred embodiment of this utility model, the upper and lower surfaces of the elastic sealing ring are respectively in close contact with the bottom wall of the first opening and the bottom of the button mounting groove.

[0010] In a preferred embodiment of this utility model, the circuit board is fixed to the inside of the middle shell by screws.

[0011] As a preferred embodiment of this utility model, the circuit board has first screw holes at its four corners, and the top surface of the middle shell has second screw holes at its four corners that mate with the first screw holes.

[0012] As a preferred embodiment of this utility model, a limiting part is provided at the lower edge of the middle shell, and a limiting groove that cooperates with the limiting part is provided inside the bottom shell.

[0013] As a preferred embodiment of the present invention, the main mounting component includes a first inner shaft having a receiving cavity and a second inner shaft connected to the first inner shaft to confine the mounting portion of the speed control handle within the receiving cavity; a Hall sensor is provided on the first inner shaft, two magnets are spaced apart on the mounting portion of the speed control handle, the Hall sensor is located between the two magnets, and the instrument is mounted on the first inner shaft.

[0014] As a preferred embodiment of the present invention, the first inner shaft includes a first shaft body and a second shaft body disposed on the side of the first shaft body away from the second inner shaft body, and the upper parts of the first shaft body and the second shaft body together form the bottom shell.

[0015] As a preferred embodiment of this utility model, a silicone cushioning pad is provided on the top surface of the pressing end of the speed control handle.

[0016] As a preferred embodiment of this utility model, the top surface of the silicone cushioning pad is provided with anti-slip stripes.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This utility model provides an electric bicycle speed control instrument. Through the cooperation of the transparent front shell, middle shell, and bottom shell, as well as the sealing of the edge connections, a relatively tight sealed space is formed, preventing rainwater from entering the instrument from the outside. At the same time, the waterproof silicone buttons further prevent rainwater from seeping in from the button mounting groove, greatly enhancing the overall waterproof capability of the instrument and avoiding short circuits and circuit board failures caused by rainwater ingress. This improves the instrument's adaptability in harsh environments such as rainy days. In addition, the compact layout of each component, with the main mounting component providing stable support for the instrument and speed control handlebars, and the combination of the middle shell, bottom shell, and transparent front shell, along with the button design, makes the entire instrument structure reasonable. It not only meets the requirements of waterproofing and functional implementation but also has good space utilization efficiency, making it suitable for installation on electric bicycles without affecting the overall aesthetics and operation of the vehicle. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. 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.

[0020] Figure 1 This is a schematic diagram of the structure of an electric bicycle speed control instrument in one embodiment of the present invention;

[0021] Figure 2 This is an exploded view of an electric bicycle speed control instrument in one embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of a waterproof silicone button in one embodiment of the present invention;

[0023] Figure 4 This is an exploded view of the main mounting component and speed control handle in one embodiment of the present invention.

[0024] In the diagram,

[0025] 1. Main mounting components; 11. First inner shaft; 111. First shaft body; 112. Second shaft body; 12. Second inner shaft; 2. Instrument; 21. Transparent front cover; 211. First opening; 22. Middle shell; 221. Viewing window; 222. Button mounting slot; 223. Second opening; 224. Second screw hole; 225. Limiting part; 23. Bottom shell; 231. Limiting groove; 24. Circuit board; 241. Button module; 242. First screw hole; 25. Display screen; 26. Waterproof silicone button; 261. Elastic sealing ring; 262. Pressing part; 263. Contact part; 264. Inner cavity; 3. Speed ​​control handle; 31. Silicone buffer pad; 311. Anti-slip stripes. Detailed Implementation

[0026] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be noted that similar reference numerals and letters in the following drawings indicate similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. It is also declared that the embodiments described below are only for explaining this utility model and are not intended to limit this utility model.

[0027] It should be noted that the terms "installation," "setting," "connection," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly defined. Indications of orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used in the application's product, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features.

[0028] Please see Figures 1 to 3This embodiment provides a speed control instrument for electric bicycles, including a main mounting component 1. An instrument 2 is provided on the top of the main mounting component 1 to facilitate the driver to view information such as vehicle speed. A speed control handle 3 is rotatably mounted on the center of the front of the main mounting component 1 to facilitate the driver to adjust the speed. The speed can be flexibly adjusted according to actual driving needs, which improves the flexibility and safety of vehicle driving. It works in conjunction with the display function of the instrument 2 to enable the driver to better grasp the operating status of the vehicle.

[0029] Instrument cluster 2 includes a transparent front cover 21, a middle cover 22, a bottom cover 23, a circuit board 24, a display screen 25, and waterproof silicone buttons 26. The bottom cover 23 is located on top of the main mounting component 1, the transparent front cover 21 is located on the bottom cover 23, and the middle cover 22 is located between the transparent front cover 21 and the bottom cover 23. Sealant is applied to the edges where the transparent front cover 21 connects to the middle cover 22 and the bottom cover 23, effectively preventing rainwater from entering the instrument cluster 2, enhancing its waterproof performance, protecting internal components such as the circuit board 24 and the display screen 25, preventing short circuits and malfunctions caused by rainwater, and extending the service life of the instrument cluster 2. The circuit board 24 is located inside the middle cover 22, and the display screen 25 is located between the circuit board 24 and the middle cover 22. A viewing window 221 is provided on the middle cover 22 directly opposite the display screen 25, allowing the display screen 25 to display information such as vehicle speed for the driver's convenience. The middle shell 22 has a button mounting groove 222. The waterproof silicone button 26 includes an elastic sealing ring 261, a pressing part 262, and a contact part 263. The elastic sealing ring 261 is located in the button mounting groove 222, providing a good seal and preventing rainwater from entering the instrument 2 from the button mounting groove 222. The pressing part 262 is located on the upper part of the elastic sealing ring 261, and the upper part of the pressing part 262 is exposed through the transparent shell 21 for easy operation by the driver. An inner cavity 264 is formed between the pressing part 262 and the elastic sealing ring 261. The contact part 263 is located at the bottom of the inner cavity 264, and the lower part of the contact part 263 passes through the button mounting groove 222 and contacts the button module 241 on the circuit board 24. When the user presses the pressing part 262, the pressing part 262 is squeezed, and the contact part 263 moves downward with the pressing part 262, thereby triggering the button module 241 to send an operation signal to the circuit board 24, realizing the control of the instrument 2's functions.

[0030] Please see Figure 2In one embodiment, the transparent housing 21 has a first opening 211 for the pressing part 262 to pass through, and the outer wall of the pressing part 262 is in close contact with the inner wall of the first opening 211, further reducing the possibility of rainwater entering the instrument 2 through the gap between the transparent housing 21 and the pressing part 262. Combined with the overall waterproof design, this improves the waterproof performance of the instrument 2. The bottom of the button mounting slot 222 has a second opening 223 for the contact part 263 to pass through, ensuring that the contact part 263 can pass smoothly through and contact the button module 241 on the circuit board 24, realizing the normal transmission of button functions, ensuring waterproofing without affecting the functionality of operation.

[0031] In one embodiment, the upper and lower surfaces of the elastic sealing ring 261 are respectively in close contact with the bottom wall of the first opening 211 and the bottom of the key mounting groove 222, which can effectively fill any gaps and form a more reliable sealing structure. This further prevents rainwater from seeping into the instrument 2 from the key mounting groove 222, greatly enhancing the waterproof capability of the key area and improving the working stability of the instrument 2 in a humid environment.

[0032] Please see Figure 2 In one embodiment, the circuit board 24 is fixed to the interior of the housing 22 by screws. Specifically, the circuit board 24 has first screw holes 242 at its four corners, and the housing 22 has second screw holes 224 at its four corners on the top surface that mate with the first screw holes 242. By fixing the circuit board 24 with screws at its four corners, the fixing force can be evenly distributed, making the circuit board 24 more stable inside the housing 22, improving the strength and stability of the overall structure, effectively resisting various external forces generated during vehicle operation, and ensuring the reliability and service life of the instrument 2.

[0033] Please see Figure 2 In one embodiment, a limiting part 225 is provided at the lower edge of the middle shell 22, and a limiting groove 231 that cooperates with the limiting part 225 is provided inside the bottom shell 23. The limiting structure not only provides clear installation guidance for the assembly of the middle shell 22 and the bottom shell 23, reducing the assembly difficulty and improving production efficiency, but also increases the connection stability between the middle shell 22 and the bottom shell 23, making them less prone to relative displacement when subjected to external forces (such as vibration and bumps during vehicle operation).

[0034] Please see Figure 4In one embodiment, the main mounting component 1 includes a first inner shaft 11 with a receiving cavity and a second inner shaft 12 connected to the first inner shaft 11 to confine the mounting portion of the speed control handle 3 within the receiving cavity. A Hall sensor is disposed on the first inner shaft 11, and two magnets are spaced apart on the mounting portion of the speed control handle 3. The Hall sensor is located between the two magnets, and the instrument 2 is mounted on the first inner shaft 11. The Hall sensor cooperates with the magnets on the speed control handle 3 to accurately detect changes in the rotation angle and position of the speed control handle 3. When the speed control handle 3 rotates, the position of the magnets changes, and the Hall sensor senses the change in magnetic field and converts it into an electrical signal, which is then transmitted to the circuit board 24. The circuit board 24 accurately controls the speed of the electric bicycle based on these signals, achieving precise speed adjustment and improving the vehicle's handling performance and driving experience.

[0035] Please see Figure 4 In one embodiment, the first inner shaft 11 includes a first shaft body 111 and a second shaft body 112 disposed on the side of the first shaft body 111 away from the second inner shaft 12. The upper parts of the first shaft body 111 and the second shaft body 112 together form a bottom shell 23, which reduces the number of separate bottom shell 23 components, simplifies the overall structure, reduces production costs and assembly difficulty, and also reduces sealing problems that may occur due to the connection between components.

[0036] Please see Figure 4 In one embodiment, a silicone buffer pad 31 is provided on the top surface of the pressing end of the speed control handle 3. The silicone buffer pad 31 has good elasticity and can effectively buffer the pressure applied by the hand, reducing the impact force between the hand and the speed control handle 3. At the same time, the top surface of the silicone buffer pad 31 is provided with anti-slip stripes 311, which increases the friction of the surface of the silicone buffer pad 31, making the driver's hand more secure when gripping the speed control handle 3 and less prone to slipping.

[0037] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

[0038] The present utility model patent has been described above with reference to the accompanying drawings. Obviously, the implementation of the present utility model patent is not limited to the above-described manner. Any improvements made by adopting the inventive concept and technical solution of the present utility model patent, or the direct application of the inventive concept and technical solution of the present utility model patent to other occasions without modification, are all within the protection scope of the present utility model.

Claims

1. An electric bicycle speed regulating instrument, comprising a main body mounting, a top of the main body mounting is provided with an instrument, a front middle part of the main body mounting is rotatably mounted with a speed regulating handle, characterized in that, The instrument comprises a transparent face shell, a middle shell, a bottom shell, a circuit board, a display screen and waterproof silica gel buttons, the bottom shell is arranged on the top of the main body mounting piece, the transparent face shell is arranged on the bottom shell, the middle shell is arranged between the transparent face shell and the bottom shell, and the edge connection of the transparent face shell and the middle shell and the bottom shell is provided with sealing glue, the circuit board is arranged inside the middle shell, the display screen is arranged between the circuit board and the middle shell, a visible window is arranged on the position of the middle shell opposite to the display screen, a button mounting groove is arranged on the middle shell, the waterproof silica gel button comprises an elastic sealing ring, a pressing part and a contact part, the elastic sealing ring is arranged on the button mounting groove, the pressing part is arranged on the upper part of the elastic sealing ring, the upper part of the pressing part is exposed outside through the transparent face shell, an inner cavity is formed between the pressing part and the elastic sealing ring, and the contact part is arranged at the bottom of the inner cavity, and the lower part of the contact part is in contact with the button module on the circuit board through the button mounting groove.

2. The electric bicycle speedometer according to claim 1, wherein, A first opening is arranged on the transparent face shell for the pressing part to pass through, and the outer wall of the pressing part is tightly attached to the inner wall of the first opening, and a second opening is arranged on the groove bottom of the button mounting groove for the contact part to pass through.

3. The electric bicycle speedometer according to claim 2, wherein, The upper and lower surfaces of the elastic sealing ring are tightly attached to the bottom wall of the first opening and the groove bottom of the button mounting groove respectively.

4. The electric bicycle speedometer of claim 1, wherein, The circuit board is fixed inside the middle shell through screws.

5. The electric bicycle speedometer according to claim 4, wherein, First screw holes are arranged at the four corners of the circuit board, and second screw holes matched with the first screw holes are arranged at the top surface of the middle shell.

6. The electric bicycle speedometer of claim 1, wherein, A limiting part is arranged at the lower edge of the middle shell, and a limiting groove matched with the limiting part is arranged inside the bottom shell.

7. The electric bicycle speedometer of claim 1, wherein, The main body mounting piece comprises a first inner shaft with a containing cavity and a second inner shaft connected with the first inner shaft to limit the mounting part of the speed regulating handle in the containing cavity; a Hall sensor is arranged on the first inner shaft, two magnets are arranged on the mounting part of the speed regulating handle at intervals, the Hall sensor is located between the two magnets, and the instrument is mounted on the first inner shaft.

8. The electric bicycle speedometer according to claim 7, wherein, The first inner shaft comprises a first shaft body and a second shaft body arranged on the side of the first shaft body away from the second inner shaft, and the upper parts of the first shaft body and the second shaft body jointly form the bottom shell.

9. The electric bicycle speedometer of claim 1, wherein, A silica gel buffer pad is arranged on the top surface of the pressing end of the speed regulating handle.

10. The electric bicycle speedometer according to claim 9, wherein, Anti-skid stripes are arranged on the top surface of the silica gel buffer pad.

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