Waterproof ventilating cover for motor of electric bicycle
By designing a waterproof shell, waterproof layer and a motor waterproof breathable cover with a breathable mechanism, the problem of the motor being easily seeped in rainy days is solved, the waterproof and breathable effect is achieved, and the use efficiency and life of the motor are improved.
Patent Information
- Application Number
- CN202423023014.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-12-09
AI Technical Summary
The existing electric bicycle motor waterproof breathable cover lacks a waterproof structure, which makes moisture easily enter the motor during rainy days, causing short circuit failures and reducing usage efficiency.
A motor waterproof breathable cover including a waterproof shell, a waterproof layer, a sealing strip and a breathable mechanism is designed to prevent moisture from entering through the waterproof layer and a sealing strip. The breathable mechanism ensures air circulation, and uses a servo motor and dehumidification block to remove moisture, and seal it with a sealing strip to achieve waterproof and breathable effect.
Effectively prevent moisture from penetrating into the motor, improve the efficiency and life of the motor in harsh environments, avoid short circuit failures, and meet daily use needs.
Smart Images

Figure CN223206928U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of waterproof and breathable motor covers, in particular to a waterproof and breathable motor cover for an electric bicycle. Background Art
[0002] The electric bicycle motor is a device that uses electromagnetic induction to convert electrical energy into mechanical energy. When current passes through the motor's stator windings, it generates a rotating magnetic field. This magnetic field interacts with the conductors in the motor's rotor, generating an induced current in the rotor conductors. This induced current is then affected by the Ampere force in the magnetic field, causing the rotor to start rotating, converting electrical energy into mechanical energy and driving the wheels of the electric bicycle. The electric bicycle motor is a device that uses electromagnetic induction to convert electrical energy into mechanical energy. When current passes through the motor's stator windings, it generates a rotating magnetic field. This magnetic field interacts with the conductors in the motor's rotor, generating an induced current in the rotor conductors. This induced current is then affected by the Ampere force in the magnetic field, causing the rotor to start rotating, converting electrical energy into mechanical energy and driving the wheels of the electric bicycle.
[0003] Motor vibration can affect riding comfort and the lifespan of the motor and vehicle components. Vibration is primarily caused by motor rotor imbalance, electromagnetic force pulsation, and impact on transmission components. To reduce vibration, the motor rotor is dynamically balanced during manufacturing to ensure uniform mass distribution. Shock-absorbing rubber pads and other measures are used at the motor and frame mounting locations to isolate motor vibration and make riding more comfortable. Existing waterproof and breathable covers lack a waterproof structure, allowing moisture to easily enter the motor when riding in the rain or when the vehicle passes through flooded roads. The motor contains numerous electrical components, such as stator windings, rotor windings, and electronic controllers. Contact with water can cause short circuits, reducing the efficiency of the vehicle's motor. Utility Model Content
[0004] In order to make up for the above shortcomings, the utility model provides a waterproof and breathable cover for an electric bicycle motor, aiming to improve the problem that the waterproof and breathable cover in the existing technology lacks a waterproof structure, which may cause short circuit failure and is inconvenient to use when riding in rainy days or when the vehicle passes through flooded roads, and moisture can easily enter the inside of the motor.
[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an electric bicycle motor waterproof and breathable cover, comprising a waterproof shell, an elongated hole is opened in the middle of the front side of the waterproof shell, the inner rear side of the elongated hole is fixedly connected to a waterproof layer 2, the front side of the waterproof layer 2 is fixedly connected to a plurality of waterproof blocks, the front side of the waterproof block is fixedly connected to a waterproof layer 1, the front side of the waterproof layer 1 is fixedly connected to a sealing strip, the outer wall of the sealing strip is fixedly connected to the inner front side of the elongated hole, the inner bottom side of the waterproof shell is fixedly connected to a plurality of front shells, the inner bottom side of the waterproof shell is fixedly connected to a plurality of dehumidification blocks, and a ventilation mechanism is provided on the top of the waterproof shell, which is used to ventilate the motor.
[0006] As a further description of the above technical solution:
[0007] The ventilation mechanism includes a T-shaped knob, the bottom of the outer wall of the T-shaped knob is rotatably connected to the inner side of the top of the waterproof shell, an external thread is provided at the upper middle part of the outer wall of the T-shaped knob, and a plurality of ventilation holes are provided at the top of the waterproof shell. A sealing column is engaged with the inner side of the ventilation hole, and the tops of the plurality of sealing columns are fixedly connected to the middle part of the bottom surface of the connecting plate.
[0008] As a further description of the above technical solution:
[0009] A plurality of second protection strips are fixedly connected to the left side of the outer wall of the waterproof housing, and a plurality of first protection strips are fixedly connected to the right side of the outer wall of the waterproof housing.
[0010] As a further description of the above technical solution:
[0011] A plurality of H-shaped rods are fixedly connected to the rear side of the waterproof housing, a spring is fixedly connected to the outer wall of the H-shaped rod, and a protective plate is fixedly connected to the other end of the spring.
[0012] As a further description of the above technical solution:
[0013] The front side of the protective plate is fixedly connected with an elastic plate, and the middle part of the rear side of the spring is fixedly connected with a protective strip three.
[0014] As a further description of the above technical solution:
[0015] A servo motor is fixedly connected to the rear end of the left side of the interior of the waterproof housing, and a sealing block is fixedly connected to the front side of the interior of the waterproof housing near the edge.
[0016] As a further description of the above technical solution:
[0017] The front side of the waterproof housing is fixedly connected with a front shell, and the front shell is of a conical design.
[0018] As a further description of the above technical solution:
[0019] The outer wall of the external thread is connected to the inner thread of the connecting plate, and the multiple external threads are all symmetrically designed.
[0020] The utility model has the following beneficial effects:
[0021] 1. In the present invention, a servo motor is installed on the inner side of a waterproof housing. At this time, a dehumidification block is installed on the inner bottom of the waterproof housing and fits together with a plurality of waterproof blocks to remove water from the elongated hole. Finally, a sealing strip is used to seal the mouth of the elongated hole. This ensures that the bicycle motor is not exposed to the outside for a long time and avoids water seepage, thereby improving the use efficiency of the motor and meeting daily use needs.
[0022] 2. In the utility model, by driving the bottom of the T-shaped knob to rotate along the top of the waterproof housing, the sealing column fixedly connected to the connecting plate is slowly moved upward from the inner side of the vent hole, and the T-shaped knob is rotated, thereby performing a threaded connection with the inner side of the connecting plate, ensuring that the connecting plate cannot move downward. Therefore, the motor can be effectively ventilated, avoiding the heat energy generated by long-term use, affecting the service life of the motor, and improving the use efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a front perspective view of the waterproof and breathable cover for the electric bicycle motor proposed in the present invention;
[0024] Figure 2 This is a partial structural diagram of the waterproof and breathable cover for the electric bicycle motor proposed in the utility model;
[0025] Figure 3 This is a partial structural exploded view of the waterproof and breathable cover of the electric bicycle motor proposed in the utility model;
[0026] Figure 4 This is a partial structural disassembly diagram of the waterproof and breathable cover for an electric bicycle motor proposed in the present invention;
[0027] Figure 5 This is a rear view of the waterproof and breathable cover for the electric bicycle motor proposed in the utility model;
[0028] Figure 6 This is a diagram showing the partial structure of the waterproof and breathable cover of the electric bicycle motor proposed in this utility model.
[0029] Legend:
[0030] 1. Waterproof shell; 2. Ventilation mechanism; 201. Connecting plate; 202. T-shaped knob; 203. Sealing column; 204. External thread; 205. Ventilation hole; 3. Protective strip 1; 4. Front shell; 5. Protective strip 2; 6. Servo motor; 7. Dehumidification block; 8. Sealing block; 9. Long hole; 10. Sealing strip; 11. Waterproof block; 12. Waterproof layer 1; 13. Waterproof layer 2; 14. Elastic plate; 15. H-shaped rod; 16. Spring; 17. Protective plate; 18. Protective strip 3. DETAILED DESCRIPTION
[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0032] Please see the attached Figure 4 - Attachment Figure 6 The utility model provides an embodiment: an electric bicycle motor waterproof and breathable cover, comprising a waterproof shell 1, an elongated hole 9 is opened in the middle of the front side of the waterproof shell 1, a waterproof layer 2 13 is fixedly connected to the inner rear side of the elongated hole 9, a plurality of waterproof blocks 11 are fixedly connected to the front side of the waterproof layer 2 13, a waterproof layer 1 12 is fixedly connected to the front side of the waterproof block 11, a sealing strip 10 is fixedly connected to the front side of the waterproof layer 12, an outer wall of the sealing strip 10 is fixedly connected to the inner front side of the elongated hole 9, a plurality of front shells 4 are fixedly connected to the inner bottom of the waterproof shell 1, a plurality of dehumidification blocks 7 are fixedly connected to the inner bottom of the waterproof shell 1, a ventilation mechanism 2 is provided on the top of the waterproof shell 1, the ventilation mechanism 2 is used to ventilate the motor, a plurality of H-shaped rods 15 are fixedly connected to the rear side of the waterproof shell 1, a spring 16 is fixedly connected to the outer wall of the H-shaped rod 15, and a protective plate 17 is fixedly connected to the other end of the spring 16;
[0033] Specifically, the presence of the second waterproof layer 13 on the inner rear side of the elongated hole 9 provides additional protection for the entire housing, ensuring the safe operation of the internal electronic components in harsh environments. On the front side of the second waterproof layer 13, a plurality of carefully designed waterproof blocks 11 are evenly fixedly connected. The setting of these waterproof blocks 11 enhances the waterproof performance of the housing and ensures that water molecules cannot easily penetrate. The front side of each waterproof block 11 is fixedly connected to a waterproof layer 12, and the front side of the waterproof layer 12 is fixedly connected to the sealing strip 10. The outer wall of the sealing strip 10 is tightly connected to the inner front side of the elongated hole 9, forming a tight seal, which effectively prevents the intrusion of moisture. At the inner bottom of the waterproof housing 1, these front shells 4 not only increase the structural strength of the housing.
[0034] Please see the attached Figure 1 - Attachment Figure 3 The ventilation mechanism 2 includes a T-shaped knob 202. The bottom of the outer wall of the T-shaped knob 202 is rotatably connected to the inner side of the top of the waterproof housing 1. An external thread 204 is provided in the upper middle part of the outer wall of the T-shaped knob 202. The top of the waterproof housing 1 is provided with a plurality of ventilation holes 205. The inner side of the ventilation holes 205 is engaged with a sealing column 203. The tops of the plurality of sealing columns 203 are fixedly connected to the middle part of the bottom surface of the connecting plate 201. The outer wall of the external thread 204 is threadedly connected to the inner side of the connecting plate 201. The plurality of external threads 204 are all symmetrically designed.
[0035] Specifically, external threads 204 are cleverly opened in the middle and upper part of the outer wall of the T-shaped knob 202. These threads not only reflect the fixing effect, but also multiple air holes 205 are evenly opened on the top of the waterproof shell 1. These air holes 205 not only ensure the air circulation inside the device, but also ensure the waterproof performance through the sealing columns 203 embedded on the inner side. The top ends of these sealing columns 203 are fixedly connected to the middle of the bottom surface of the connecting plate 201, forming a reliable sealing barrier. The outer wall of the external thread 204 is precisely matched with the inner thread of the connecting plate 201. The multiple external threads 204 are all symmetrically designed, and the stability and durability of the knob are enhanced in structure.
[0036] Please see the attached Figure 2 - Attachment Figure 5 , the outer wall of the waterproof housing 1 is fixedly connected to a plurality of protective strips 2 5 on the left side, the outer wall of the waterproof housing 1 is fixedly connected to a protective strip 1 3 on the right side, the front side of the protective plate 17 is fixedly connected to the elastic plate 14, the middle part of the rear side of the spring 16 is fixedly connected to the protective strip 3 18, the rear end of the left side of the interior of the waterproof housing 1 is fixedly connected to the servo motor 6, the front side of the interior of the waterproof housing 1 is fixedly connected to the sealing block 8 near the edge, and the front side of the waterproof housing 1 is fixedly connected to the front shell 4, which is a conical design;
[0037] Specifically, these protective strips 2 5 not only enhance the structural strength of the shell, but also provide an additional layer of protection to resist impacts or scratches that may come from the left side. Protective strips 1 3 are also fixedly installed on the right outer wall, which echo the protective strips 2 5. The middle of the rear end of the spring 16 is fixedly connected to the protective strip 3 18, which provides dynamic protection capabilities for the protective strip 3 18. When subjected to external force, the protective strip 3 18 can effectively absorb the impact and reduce damage to other parts of the shell.
[0038] Working principle: When the bicycle motor needs to be waterproofed, the servo motor 6 is first installed on the inner side of the waterproof shell 1. At this time, the dehumidification block 7 is installed on the inner bottom of the waterproof shell 1, so that the second waterproof layer 13 is inserted into the inner side of the elongated hole 9 and fits with multiple waterproof blocks 11 to remove water from the elongated hole 9. Thereafter, the first waterproof layer 12 is inserted into the edge of the elongated hole 9. Finally, the mouth of the elongated hole 9 is sealed with a sealing strip 10. In this way, the bicycle motor is protected from water seepage during long-term exposure, thereby improving the efficiency of the motor and meeting daily use needs.
[0039] After that, when the motor generates heat energy calmly during long-term operation, the T-shaped knob 202 is twisted, thereby driving the bottom of the T-shaped knob 202 to rotate along the top of the waterproof shell 1, and cooperate with the sealing column 203 fixedly connected to the connecting plate 201 to slowly move upward from the inside of the air vent 205. When it contacts the outer wall of the external thread 204, the T-shaped knob 202 rotates idly, thereby threading it with the inner side of the connecting plate 201, ensuring that the connecting plate 201 cannot move downward. Therefore, it is possible to effectively ventilate the motor, avoid heat energy easily generated by long-term use, affect the service life of the motor, and improve the use efficiency.
[0040] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A waterproof and breathable cover for an electric bicycle motor, comprising a waterproof housing (1), characterized in that: The waterproof shell (1) is provided with an elongated hole (9) in the middle of the front side, the inner rear side of the elongated hole (9) is fixedly connected to a second waterproof layer (13), the front side of the second waterproof layer (13) is fixedly connected to a plurality of waterproof blocks (11), the front side of the waterproof blocks (11) is fixedly connected to a first waterproof layer (12), the front side of the first waterproof layer (12) is fixedly connected to a sealing strip (10), the outer wall of the sealing strip (10) is fixedly connected to the inner front side of the elongated hole (9), the inner bottom of the waterproof shell (1) is fixedly connected to a plurality of front shells (4), the inner bottom of the waterproof shell (1) is fixedly connected to a plurality of dehumidification blocks (7), and the top of the waterproof shell (1) is provided with a ventilation mechanism (2), and the ventilation mechanism (2) is used to ventilate the motor.
2. The waterproof and breathable cover for an electric bicycle motor according to claim 1, characterized in that: The ventilation mechanism (2) comprises a T-shaped knob (202), the bottom of the outer wall of the T-shaped knob (202) is rotatably connected to the inner side of the top of the waterproof housing (1), an external thread (204) is provided at the upper middle portion of the outer wall of the T-shaped knob (202), a plurality of ventilation holes (205) are provided at the top of the waterproof housing (1), a sealing column (203) is engaged with the inner side of the ventilation hole (205), and the tops of the plurality of sealing columns (203) are fixedly connected to the middle portion of the bottom surface of the connecting plate (201).
3. The waterproof and breathable cover for an electric bicycle motor according to claim 1, characterized in that: The left side of the outer wall of the waterproof shell (1) is fixedly connected with a plurality of second protection strips (5), and the right side of the outer wall of the waterproof shell (1) is fixedly connected with a first protection strip (3).
4. The waterproof and breathable cover for an electric bicycle motor according to claim 1, characterized in that: The rear side of the waterproof housing (1) is fixedly connected to a plurality of H-shaped rods (15), the outer wall of the H-shaped rod (15) is fixedly connected to a spring (16), and the other end of the spring (16) is fixedly connected to a protective plate (17).
5. The waterproof and breathable cover for an electric bicycle motor according to claim 4, characterized in that: The front side of the protective plate (17) is fixedly connected to the elastic plate (14), and the middle part of the rear side of the spring (16) is fixedly connected to the protective strip three (18).
6. The waterproof and breathable cover for an electric bicycle motor according to claim 1, characterized in that: A servo motor (6) is fixedly connected to the rear end of the left side of the interior of the waterproof housing (1), and a sealing block (8) is fixedly connected to the front side of the interior of the waterproof housing (1) near the edge.
7. The waterproof and breathable cover for an electric bicycle motor according to claim 1, characterized in that: The front side of the waterproof housing (1) is fixedly connected to a front shell (4), and the front shell (4) is of a conical design.
8. The waterproof and breathable cover for an electric bicycle motor according to claim 2, characterized in that: The outer wall of the external thread (204) is threadedly connected to the inner side of the connecting plate (201), and the plurality of external threads (204) are all symmetrically designed.