Motor for electric motorcycle with waterproof structure

Abstract

The application discloses a waterproof motor for electric motorcycle, and relates to the technical field of motors.The motor comprises a shell and a motor body, the motor body is fixed to the front surface of the inner wall of the shell, the front surface of the shell is provided with a waterproof device, the waterproof device comprises a frame plate and a cover plate, the frame plate is fixed to the outer side of the rotating shaft of the motor body, the back surface of the frame plate is fixed with an impeller ring, the impeller ring is located in the shell, the cover plate is fixed to the front surface of the shell, the back surface of the cover plate is fixed with a rubber ring, the rubber ring penetrates through the front surface of the shell, the rubber ring is sleeved on the outer side of the rotating shaft of the motor body, and the back surface of the rubber ring is in contact with the front surface of the frame plate.The waterproof device is arranged, the motor body, the frame plate and the impeller ring cooperate to blow the airflow out of the gap between the shell and the motor body, so that water is prevented from penetrating into the motor, and the service life of the motor is prolonged.

Description

Technical Field

[0001] This invention relates to the field of motor technology, specifically to a motor for electric motorcycles with a waterproof structure. Background Technology

[0002] Electric motorcycles are generally powered by a battery-driven motor. The motor converts electrical energy into mechanical energy, and its performance directly affects the safety of the electric motorcycle.

[0003] Utility model patent CN211791044U discloses a waterproof electric motor for motorcycles, including a main body and an inner rubber ring. A fixed shaft is positioned at the center of the main body, and inner shaft wheels are fixed on both sides of the fixed shaft. The inner rubber ring is located on the outer side of the inner shaft wheels. A coil is fixed at the center of the fixed shaft. A fixing hole is formed on the inner side of the main body, and outer rubber rings are distributed on the outer side of the fixing hole. This waterproof electric motor for motorcycles features a cable retainer, which is perpendicular to the fixed shaft. The "L"-shaped cable retainer effectively prevents water from entering the retainer. The perpendicular distribution of the cable retainer and the fixed shaft ensures the accuracy of their fixed positions, preventing positional shifts during actual use that could affect the stability of the wire connection. The detachable structure facilitates maintenance and repair of the motor. The sealing rubber ring at one end of the cable retainer provides excellent sealing and waterproofing. However, this motor cannot protect against splashed water.

[0004] Currently, electric motorcycle motors have the following problems: When electric motorcycles are driven through waterlogged areas in rainy weather, the electric motorcycles will splash water on the ground, which will cause water with impact to splash onto the motor. This makes it easy for water to seep into the motor through the gaps at the motor connection, reducing the motor's service life. Therefore, we have proposed an electric motorcycle motor with a waterproof structure. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a motor for electric motorcycles with a waterproof structure, which solves the problem mentioned in the background art where, when an electric motorcycle travels through a flooded area in rainy weather, it splashes water onto the motor with impact force, making it easy for water to seep into the motor through gaps in the motor connection, thus reducing the motor's service life.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a waterproof electric motor for electric motorcycles, comprising a housing and a motor body. The motor body is fixed to the front inner wall of the housing. A waterproof device is provided on the front of the housing, comprising a frame plate and a cover plate. The frame plate is fixed to the outside of the motor body's rotating shaft. An impeller ring is fixed to the back of the frame plate, located inside the housing. The cover plate is fixed to the front of the housing, and a rubber ring is fixed to the back of the cover plate. The rubber ring penetrates the front of the housing and is fitted onto the outside of the motor body's rotating shaft. The back of the rubber ring abuts against the front of the frame plate. The motor body drives the impeller ring to rotate via the frame plate, causing the impeller ring to fan air towards the motor body. The airflow exits from the gap between the housing and the motor body, thus preventing water from easily seeping into the motor and reducing its service life. Simultaneously, the frame plate abutting against the rubber ring seals the gap between the cover plate and the housing, further improving the motor's waterproof performance.

[0007] Preferably, the outer casing has arc grooves on both the left and right sides, and the inner walls of the arc grooves have beveled openings. An anti-adhesion device is installed inside the arc grooves, comprising two arc plates respectively hinged to the upper walls of the left and right arc grooves. A torsion spring is provided between the two arc plates and the inner walls of the arc grooves. A partition is fixed to the side of the arc plate near the outer wall of the outer casing. An abutment block is fixed to the bottom right side of the front of the arc plate, penetrating and slidably mounted on the outer wall of the outer casing. The back of the impeller ring... Several contact posts are fixed on the surface. The contact block is correspondingly set with the contact post of the impeller ring, and the contact block contacts the outer wall of the contact post of the impeller ring. The frame plate drives the arc plate to swing away from the outer shell by pushing the contact block. The arc plate shakes off the water splashed on the outside of the outer shell, thereby avoiding the problem of water adhering to the outside of the arc plate and keeping the motor body in a humid environment. At the same time, the partition plate guides the airflow generated by the impeller ring and discharges it to the outer wall of the outer shell, thereby accelerating the evaporation of water adhering to the outside of the outer shell and keeping the outer surface of the outer shell in a dry state.

[0008] Preferably, a waste heat utilization device is provided on the outer side of the motor body. The waste heat utilization device includes a rotating ring and a semi-circular block. The rotating ring is rotatably installed on the front of the inner wall of the outer shell. A T-shaped heat-conducting shell is fixed on the front of the rotating ring. The T-shaped heat-conducting shell is fixed on the back of the impeller ring. A sliding plate is slidably installed on the inner wall of the T-shaped heat-conducting shell. A spring is provided between the sliding plate and the inner wall of the T-shaped heat-conducting shell. There are several semi-circular blocks, which are fixed on the left and right sides of the inner wall of the outer shell. The end of the sliding plate away from the T-shaped heat-conducting shell contacts the outer wall of the semi-circular block. The side of the T-shaped heat-conducting shell near the center of the rotating ring contacts the outer wall of the motor body. The heat of the motor body is directed into the T-shaped heat-conducting shell. The semi-circular block pushes the sliding plate to slide into the interior of the T-shaped heat-conducting shell, thereby causing the sliding plate to squeeze the hot air inside the T-shaped heat-conducting shell outward. The hot air is discharged through the inclined opening of the outer shell at the same time, thereby drying the water adhering to the outer surface of the outer shell, thus further avoiding the problem of water entering the motor body.

[0009] Preferably, a blowing device is provided on the inner wall of the outer casing near the motor body shaft. The blowing device includes an arc-shaped protrusion ring plate. A spring is provided between the arc-shaped protrusion ring plate and the side of the inner wall of the outer casing. An arc shell is fixed to the front of the arc-shaped protrusion ring plate. The arc shell passes through and slides on the inner wall of the outer casing near the motor body shaft. A hemispherical block is fixed to the back of the arc-shaped protrusion ring plate. The hemispherical block of the arc-shaped protrusion ring plate contacts the frame plate. The frame plate pushes the hemispherical block of the arc-shaped protrusion ring plate to move the arc shell away from the frame plate, thereby forming a gap between the arc shell and the outer casing. The airflow generated by the impeller ring is discharged through the gap, thereby blowing away the water adhering to the rubber ring. This avoids the problem of water adhering to the outside of the rubber ring and easily penetrating into the inner casing and corroding the motor body.

[0010] Preferably, a shaft is rotatably mounted on the top of the arc-shaped protrusion ring plate, and a first swing plate and a second swing plate are movably mounted on the outer side of the shaft. A torsion spring is provided between the first and second swing plates and the shaft. A spring plate is fixed on the side of the first and second swing plates near the inner wall of the outer shell. The arc-shaped protrusion ring plate drives the shaft to move. Under the restriction of the spring plate, the shaft drives the first and second swing plates to form a V shape, thereby guiding part of the airflow generated by the impeller ring through the first and second swing plates, thus promoting the efficiency of airflow discharge from the inclined opening of the outer shell.

[0011] This invention provides a motor for electric motorcycles with a waterproof structure. It has the following advantages: (1) The present invention, through the setting of the waterproof device, enables the motor body, the frame plate and the impeller ring to work together to blow air out from the gap at the connection between the outer shell and the motor body, thereby avoiding the problem that water can easily seep into the motor and reduce the service life of the motor. At the same time, the frame plate and the rubber ring work together to seal the gap between the cover plate and the outer shell, thereby further improving the waterproof performance of the motor.

[0012] (2) By setting up an anti-adhesion device, the present invention enables the frame plate and the contact block to work together to drive the arc plate to shake off the water splashed and attached to the outside of the shell, thereby avoiding the problem of water adhering to the outside of the arc plate and causing the motor body to be in a humid environment. At the same time, the partition plate and the impeller ring work together to guide the airflow and discharge it to the outer wall of the shell, thereby accelerating the evaporation speed of the water attached to the outside of the shell, and thus keeping the outer surface of the shell in a dry state.

[0013] (3) By setting up a waste heat utilization device, the present invention enables the motor body, T-shaped heat-conducting shell, frame plate, semi-arc block and slide plate to work together to squeeze the hot air inside the T-shaped heat-conducting shell outward. At the same time, the hot air is discharged through the inclined opening of the shell, thereby drying the water adhering to the outer surface of the shell, thus further avoiding the problem of water entering the motor body.

[0014] (4) The present invention, through the setting of the blowing device, enables the frame plate, the arc-shaped protrusion ring plate, the arc shell and the impeller ring to cooperate so that the airflow generated by the impeller ring is discharged through the gap formed between the arc shell and the outer shell, thereby blowing away the water adhering to the rubber ring, thus avoiding the problem that water adheres to the outside of the rubber ring and easily penetrates into the inner shell and corrodes the motor body; at the same time, the arc-shaped protrusion ring plate, the shaft and the spring plate cooperate to make the first swing plate and the second swing plate form a V shape to guide the airflow, thereby promoting the efficiency of the airflow being discharged from the oblique opening of the outer shell. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the entire invention; Figure 2 This is a partial cross-sectional schematic diagram of the entire invention; Figure 3 This is a schematic diagram of the waterproof device of the present invention; Figure 4 This is a schematic diagram of the anti-adhesion device of the present invention; Figure 5 This is a schematic diagram of the anti-adhesion device of the present invention; Figure 6 This is a schematic diagram of the waste heat utilization device of the present invention; Figure 7 This is a partial cross-sectional schematic diagram of the blowing device of the present invention.

[0016] In the diagram: 1. Outer shell; 11. Motor body; 2. Waterproofing device; 21. Frame plate; 22. Impeller ring; 23. Cover plate; 24. Rubber ring; 3. Anti-adhesion device; 31. Arc plate; 32. Partition plate; 33. Contact block; 4. Dispersing device; 41. Arc-shaped protrusion ring plate; 42. Arc shell; 43. Shaft; 44. No. 1 swing plate; 45. No. 2 swing plate; 46. Spring plate; 5. Waste heat utilization device; 51. Rotary ring; 52. T-shaped heat-conducting shell; 53. Semi-arc block; 54. Slide plate. Detailed 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.

[0018] Please see Figure 1-7 This invention provides a technical solution: an electric motor for electric motorcycles with a waterproof structure, comprising a housing 1 and a motor body 11. The motor body 11 is fixed to the front of the inner wall of the housing 1. A waterproof device 2 is provided on the front of the housing 1. The waterproof device 2 includes a frame plate 21 and a cover plate 23. The frame plate 21 is fixed to the outside of the rotating shaft of the motor body 11. An impeller ring 22 is fixed to the back of the frame plate 21. The impeller ring 22 is located inside the housing 1. The cover plate 23 is fixed to the front of the housing 1. A rubber ring 24 is fixed to the back of the cover plate 23, and the rubber ring 24 penetrates the front of the housing 1. Furthermore, the rubber ring 24 is fitted onto the outside of the rotating shaft of the motor body 11, with the back of the rubber ring 24 abutting against the front of the frame plate 21. The motor body 11 drives the impeller ring 22 to rotate through the frame plate 21, thereby causing the impeller ring 22 to fan air towards the motor body 11. The airflow is blown out from the gap at the connection between the outer casing 1 and the motor body 11, thus preventing water from easily seeping into the motor and reducing the motor's service life. At the same time, the frame plate 21 abutting against the rubber ring 24 seals the gap between the cover plate 23 and the outer casing 1, thereby further improving the motor's waterproof performance.

[0019] Preferably, the outer casing 1 has arc grooves on both the left and right sides, and the inner wall of the arc grooves of the outer casing 1 has beveled openings. An anti-adhesion device 3 is provided inside the arc grooves of the outer casing 1. The anti-adhesion device 3 includes two arc plates 31, which are respectively hinged to the inner wall of the arc grooves on the left and right sides of the outer casing 1. A torsion spring is provided between the two arc plates 31 and the inner wall of the arc grooves of the outer casing 1. A partition plate 32 is fixed on the side of the arc plate 31 near the outer wall of the outer casing 1. An abutment block 33 is fixed on the bottom right side of the front of the arc plate 31. The abutment block 33 passes through and slides on the outer wall of the outer casing 1. Several abutment posts are fixed on the back of the impeller ring 22. The contact block 33 is correspondingly arranged with the contact post of the impeller ring 22, and the contact block 33 contacts the outer wall of the contact post of the impeller ring 22. The frame plate 21 drives the arc plate 31 to swing away from the outer shell 1 by pushing the contact block 33. The arc plate 31 shakes out the water splashed on the outside of the outer shell 1, thereby avoiding the problem of water adhering to the outside of the arc plate 31 and making the motor body 11 in a humid environment. At the same time, the partition plate 32 guides the airflow generated by the impeller ring 22 and discharges it to the outer wall of the outer shell 1, thereby accelerating the evaporation speed of the water adhering to the outside of the outer shell 1, and thus keeping the outer surface of the outer shell 1 in a dry state.

[0020] Preferably, a waste heat utilization device 5 is provided on the outer side of the motor body 11. The waste heat utilization device 5 includes a rotating ring 51 and semi-arc blocks 53. The rotating ring 51 is rotatably mounted on the front of the inner wall of the outer casing 1. A T-shaped heat-conducting shell 52 is fixed on the front of the rotating ring 51. The T-shaped heat-conducting shell 52 is fixed on the back of the impeller ring 22. A sliding plate 54 is slidably mounted on the inner wall of the T-shaped heat-conducting shell 52. A spring is provided between the sliding plate 54 and the inner wall of the T-shaped heat-conducting shell 52. There are several semi-arc blocks 53. Several semi-arc blocks 53 are fixed on the left and right sides of the inner wall of the outer casing 1. The sliding plate 54 is far from the inner wall of the outer casing 1. One end of the T-shaped heat-conducting shell 52 contacts the outer wall of the semi-circular block 53, and the side of the T-shaped heat-conducting shell 52 near the center of the rotating ring 51 contacts the outer wall of the motor body 11. The heat of the motor body 11 is directed into the T-shaped heat-conducting shell 52. The semi-circular block 53 pushes the sliding plate 54 to slide into the interior of the T-shaped heat-conducting shell 52, thereby causing the sliding plate 54 to squeeze the hot air inside the T-shaped heat-conducting shell 52 to be discharged outward. At the same time, the hot air is discharged through the oblique opening of the outer shell 1, thereby drying the water adhering to the outer surface of the outer shell 1, thus further avoiding the problem of water entering the motor body 11.

[0021] Preferably, a blowing device 4 is provided on the inner wall of the outer casing 1 near the shaft of the motor body 11. The blowing device 4 includes an arc-shaped protrusion ring plate 41. A spring is provided between the arc-shaped protrusion ring plate 41 and the side of the inner wall of the outer casing 1. An arc shell 42 is fixed to the front of the arc-shaped protrusion ring plate 41. The arc shell 42 is slidably mounted on the inner wall of the outer casing 1 near the shaft of the motor body 11. A hemispherical block is fixed to the back of the arc-shaped protrusion ring plate 41. The hemispherical block of the arc-shaped protrusion ring plate 41 contacts the frame plate 21. The frame plate 21 pushes the hemispherical block of the arc-shaped protrusion ring plate 41 to move the arc shell 42 away from the frame plate 21, thereby forming a gap between the arc shell 42 and the outer casing 1. The airflow generated by the impeller ring 22 is discharged through the gap, thereby blowing away the water adhering to the rubber ring 24. This avoids the problem that water adheres to the outside of the rubber ring 24 and easily penetrates into the interior of the outer casing 1 and corrodes the motor body 11.

[0022] Preferably, a shaft 43 is rotatably mounted on the top of the arc-shaped protrusion ring plate 41. A first swing plate 44 and a second swing plate 45 are movably mounted on the outer side of the shaft 43. A torsion spring is provided between the first swing plate 44 and the second swing plate 45 and the shaft 43. A spring plate 46 is fixed on the side of the first swing plate 44 and the second swing plate 45 near the inner wall of the outer casing 1. The arc-shaped protrusion ring plate 41 drives the shaft 43 to move. Under the restriction of the spring plate 46, the shaft 43 drives the first swing plate 44 and the second swing plate 45 to form a V shape, so that the first swing plate 44 and the second swing plate 45 guide part of the airflow generated by the impeller ring 22, thereby promoting the efficiency of the airflow discharged from the oblique opening of the outer casing 1.

[0023] In use, when the motor body 11 is in use, the motor body 11 drives the frame plate 21 to rotate, and the frame plate 21 drives the impeller ring 22 to rotate, so that the impeller ring 22 blows air in the direction of the motor body 11. The airflow is blown out from the gap at the connection between the outer shell 1 and the motor body 11, thereby avoiding the problem of water easily seeping into the motor and reducing the service life of the motor. At the same time, the frame plate 21 abuts against the rubber ring 24 to seal the gap between the cover plate 23 and the outer shell 1, thereby further improving the waterproof performance of the motor.

[0024] When the frame plate 21 rotates, the frame plate 21 pushes the contact block 33 to drive the arc plate 31 to swing away from the outer shell 1. The arc plate 31 shakes off the water splashed and attached to the outside of the outer shell 1, thereby avoiding the problem of water adhering to the outside of the arc plate 31 and causing the motor body 11 to be in a humid environment. At the same time, the partition plate 32 guides the airflow generated by the impeller ring 22 and discharges it onto the outer wall of the outer shell 1, thereby accelerating the evaporation of water attached to the outside of the outer shell 1 and thus keeping the outer surface of the outer shell 1 in a dry state.

[0025] When the motor body 11 is in use, it generates heat, which is directed to the T-shaped heat-conducting shell 52. The air inside the T-shaped heat-conducting shell 52 is heated. When the frame plate 21 rotates, it drives the T-shaped heat-conducting shell 52 to rotate synchronously. When the T-shaped heat-conducting shell 52 moves to the semi-circular block 53, the semi-circular block 53 pushes the sliding plate 54 to slide into the T-shaped heat-conducting shell 52. This causes the sliding plate 54 to squeeze the hot air inside the T-shaped heat-conducting shell 52 outward. At the same time, the hot air is discharged through the inclined opening of the outer shell 1, thereby drying the water adhering to the outer surface of the outer shell 1 and further preventing the problem of water entering the motor body 11.

[0026] When the frame plate 21 rotates, it pushes the hemispherical block of the arc-shaped protrusion ring plate 41, causing the arc shell 42 to move away from the frame plate 21. This creates a gap between the arc shell 42 and the outer shell 1, through which the airflow generated by the impeller ring 22 is discharged. This allows the discharged airflow to disperse the water adhering to the rubber ring 24, thus preventing water from adhering to the outside of the rubber ring 24 and easily penetrating into the inner shell 1 and corroding the motor body 11. At the same time, when the arc-shaped protrusion ring plate 41 moves, it drives the shaft 43 to move synchronously. Under the position restriction of the first swing plate 44 and the second swing plate 45 by the spring plate 46, the shaft 43 drives the first swing plate 44 and the second swing plate 45 to form a V-shape. This allows the first swing plate 44 and the second swing plate 45 to guide part of the airflow generated by the impeller ring 22, thereby improving the efficiency of the airflow being discharged from the oblique opening of the outer shell 1.

[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 electric motor for motorcycles, comprising a housing (1) and a motor body (11), wherein the motor body (11) is fixed to the front of the inner wall of the housing (1), characterized in that: A waterproof device (2) is provided on the front of the outer casing (1). The waterproof device (2) includes a frame plate (21) and a cover plate (23). The frame plate (21) is fixed to the outside of the rotating shaft of the motor body (11). An impeller ring (22) is fixed on the back of the frame plate (21). The impeller ring (22) is located inside the outer casing (1). The cover plate (23) is fixed to the front of the outer casing (1). A rubber ring (24) is fixed on the back of the cover plate (23). The rubber ring (24) penetrates the front of the outer casing (1) and is sleeved on the outside of the rotating shaft of the motor body (11). The back of the rubber ring (24) abuts against the front of the frame plate (21). The outer shell (1) has arc grooves on both the left and right sides, and the inner wall of the arc grooves of the outer shell (1) has a bevel. An anti-adhesion device (3) is provided inside the arc grooves of the outer shell (1). The anti-adhesion device (3) includes an arc plate (31). There are two arc plates (31). The two arc plates (31) are respectively hinged to the upper part of the inner wall of the arc groove on the left and right sides of the outer shell (1). A torsion spring is provided between the two arc plates (31) and the inner wall of the arc groove of the outer shell (1). A partition plate (32) is fixed on the side of the arc plate (31) near the outer wall of the outer shell (1). An abutment block (33) is fixed on the right side of the bottom front of the arc plate (31). A blowing device (4) is provided on the inner wall of the outer shell (1) near the rotating shaft of the motor body (11). The blowing device (4) includes an arc-shaped protrusion ring plate (41). A spring is provided between the arc-shaped protrusion ring plate (41) and the side of the inner wall of the outer shell (1). An arc shell (42) is fixed on the front of the arc-shaped protrusion ring plate (41). The arc shell (42) is installed through and slidably on the inner wall of the outer shell (1) near the rotating shaft of the motor body (11). A hemispherical block is fixed on the back of the arc-shaped protrusion ring plate (41). The hemispherical block of the arc-shaped protrusion ring plate (41) is in contact with the frame plate (21).

2. The electric motor for electric motorcycles with a waterproof structure according to claim 1, characterized in that: The back of the impeller ring (22) is fixed with several abutting posts. The abutting block (33) is arranged corresponding to the abutting posts of the impeller ring (22), and the abutting block (33) contacts the outer wall of the abutting posts of the impeller ring (22).

3. The electric motor for electric motorcycles with a waterproof structure according to claim 2, characterized in that: The outer side of the motor body (11) is provided with a waste heat utilization device (5). The waste heat utilization device (5) includes a rotating ring (51) and a semi-arc block (53). The rotating ring (51) is rotatably installed on the front of the inner wall of the outer shell (1). A T-shaped heat-conducting shell (52) is fixed on the front of the rotating ring (51). The T-shaped heat-conducting shell (52) is fixed on the back of the impeller ring (22). A sliding plate (54) is slidably installed on the inner wall of the T-shaped heat-conducting shell (52). A spring is provided between the sliding plate (54) and the inner wall of the T-shaped heat-conducting shell (52). There are several semi-arc blocks (53). Several semi-arc blocks (53) are fixed on the left and right sides of the inner wall of the outer shell (1).

4. The electric motor for electric motorcycles with a waterproof structure according to claim 3, characterized in that: The end of the slide plate (54) away from the T-shaped heat-conducting shell (52) is in contact with the outer wall of the semi-arc block (53), and the side of the T-shaped heat-conducting shell (52) near the center of the rotating ring (51) is in contact with the outer wall of the motor body (11).

5. The electric motor for electric motorcycles with a waterproof structure according to claim 4, characterized in that: A shaft (43) is rotatably mounted on the top of the arc-shaped protrusion ring plate (41). A first swing plate (44) and a second swing plate (45) are movably mounted on the outer side of the shaft (43). A torsion spring is provided between the first swing plate (44) and the second swing plate (45) and the shaft (43). A spring plate (46) is fixed on the side of the first swing plate (44) and the second swing plate (45) near the inner wall of the outer shell (1).

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