A wind cooling structure of a motorcycle motor

Abstract

The application provides a motorcycle motor air cooling structure and belongs to the motorcycle technical field. The motorcycle motor air cooling structure solves the technical problem that the overall motor of the existing electric motorcycle cannot be fully and evenly cooled. The motorcycle motor air cooling structure comprises a motor shell in a cylindrical shape and arranged in the lateral direction of the motorcycle. The air cooling structure comprises a wind scooping plate arranged at the rear of the motor shell. The wind scooping plate is arranged in the up-down direction, and the plate surface of the wind scooping plate faces forward. The wind scooping plate is provided with a wind guiding plate with an upper end inclined forward. The upper end of the wind guiding plate is higher than the top of the motor shell. The wind guiding plate and the wind scooping plate form a cooling air duct penetrating in the up-down direction between the outer wall of the motor shell. The application can realize uniform and stable cooling effect on the motorcycle motor.

Description

Technical Field

[0001] This invention belongs to the field of motorcycle technology and relates to an air-cooled structure for a motorcycle motor. Background Technology

[0002] An electric motorcycle is a type of motorcycle that uses a battery to power an electric motor instead of an engine. The electric drive and control system consists of a drive motor, a power supply, and a speed control mechanism for the motor. Other structural aspects of an electric motorcycle are basically the same as those of an internal combustion engine. Similar to an engine, the electric motor in an electric motorcycle also requires specific cooling measures to ensure stable and reliable operation.

[0003] Patent application publication number CN103189268A discloses a straddle-type vehicle, including: an electrical device having electrical components that generate heat during operation; and a travel air guide for cooling the electrical device by travel air; the travel air guide has a travel air inlet for introducing travel air from the front, a travel air passage for the travel air introduced by the travel air inlet to flow, and a travel air outlet for ejecting travel air flowing in the travel air passage to cool the electrical device, and is configured such that the flow path cross-sectional area of ​​the travel air outlet is smaller than that of the travel air inlet.

[0004] The aforementioned motorcycles can provide targeted cooling for the drive motor, but during operation, areas such as the back of the drive motor are not effectively cooled, and the motor as a whole does not receive sufficient and even heat dissipation. Summary of the Invention

[0005] In view of the above-mentioned problems existing in the prior art, the present invention provides an air-cooled structure for a motorcycle motor. The technical problem to be solved by the present invention is to improve the uniform and stable cooling effect of the motorcycle motor.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A cooling structure for a motorcycle motor, the motorcycle including a cylindrical motor housing arranged laterally along the motorcycle, characterized in that the cooling structure includes a baffle plate disposed at the rear of the motor housing, the baffle plate being arranged vertically with its surface facing forward, the baffle plate having an air guide plate with its upper end inclined forward, the upper end of the air guide plate being higher than the top of the motor housing, and a vertically penetrating cooling air duct being formed between the air guide plate, the baffle plate and the outer wall of the motor housing.

[0008] Electric motorcycles use an electric motor instead of an engine as their power source. The motor housing on the motorcycle is used to house the motor components. By setting a vertically oriented air intake plate at the rear of the motor housing, with the upper end of the air intake plate vertically higher than the top of the motor housing, a vertically connected cooling air duct is formed between the air intake plate, the air intake plate, and the motor housing. When the motorcycle moves forward, the airflow caused by the speed difference flows from the front over the surface of the motor housing. When the airflow reaches the rear of the motor housing, it is guided by the air intake plate and flows smoothly downward into the cooling air duct, which helps to reduce airflow speed loss. The airflow can flow along the leeward side of the rear of the motor housing and exit from the lower end of the cooling air duct. In this way, the airflow carries away the heat dissipated from the leeward side of the motor housing, achieving a uniform and stable cooling effect for the motor.

[0009] In the aforementioned air-cooled structure of the motorcycle motor, the air intake plate is located at the upper end of the baffle plate. The air intake plate includes an air intake section and a steering section connected sequentially. The steering section is inclined downwards relative to the air intake section, and its lower end is connected to the baffle plate. This results in a larger angle between the steering section and the baffle plate, allowing the airflow initially guided by the air intake section to smoothly change direction and flow downwards along the steering section, reducing airflow velocity loss and improving heat exchange efficiency.

[0010] In the aforementioned air-cooled structure of the motorcycle motor, the surface of the motor housing facing the vent has heat dissipation fins. This improves the heat dissipation effect in this area, allowing the airflow through the cooling duct to carry away more heat.

[0011] In the aforementioned air-cooled structure of the motorcycle motor, the heat dissipation fins are arranged along the axial direction of the motor housing. This allows the heat dissipation fins to balance temperature differences along the motor's axial direction, resulting in more uniform heat exchange through the airflow within the cooling duct.

[0012] In the aforementioned air-cooled structure of the motorcycle motor, the central part of the baffle has a forward-arching protrusion. This protrusion in the center of the baffle and the motor housing form a constriction in the cooling airflow duct, increasing the local airflow velocity in that area and allowing the airflow to approach the motor housing more closely for heat exchange, thus improving the cooling and heat transfer effect.

[0013] In the aforementioned air-cooled structure of the motorcycle motor, the lower end of the baffle has a guide plate facing forward. This guide plate allows the airflow within the cooling duct to exit closer to the motor housing, thus fully absorbing the surface heat of the motor housing at the end of the cooling duct and improving heat exchange uniformity.

[0014] In the aforementioned air-cooled structure of the motorcycle motor, the guide plate is located below and close to the protrusion. This ensures that after the airflow exits at high speed from the constricted structure in the cooling duct, it can still maintain high-speed flow between the guide plate and the motor housing, thereby achieving heat dissipation through most of the airflow and the motor housing, and improving the heat dissipation effect.

[0015] In the aforementioned air-cooled structure of the motorcycle motor, a vertically positioned and forward-extending outer cover is connected to the air intake plate, with the inner side of the outer cover aligned laterally with the cooling duct. This outer cover further restricts airflow within the cooling duct, reducing lateral escape and thus improving the heat exchange effect.

[0016] In the aforementioned air-cooled structure of the motorcycle motor, the motorcycle also includes a gearbox housing. The motor housing and the gearbox housing are integrally connected, and the air vent is fixedly connected to the gearbox housing. This allows the motor to more conveniently and compactly connect to the gearbox housing after outputting power. At the same time, the gearbox housing can constrain the airflow path within the cooling duct, reducing lateral airflow escape and improving heat exchange efficiency.

[0017] In the aforementioned air-cooled structure of the motorcycle motor, the outer cover is inclined outwards from back to front. This ensures that the cooling duct fully covers the rear side of the motor housing and provides sufficient airflow, while reducing the cross-sectional size of the rear side of the cooling duct. This, in turn, ensures that most of the airflow can exchange heat with the motor housing, improving the utilization efficiency of the airflow.

[0018] In the aforementioned air-cooled structure of the motorcycle motor, the outer cover plate has an arc-shaped notch on its side edge near the motor housing. The motor housing is fitted into the arc-shaped notch, and the outer circumferential surface of the motor housing matches the shape of the arc-shaped notch. This ensures that the edge of the outer cover plate is sufficiently close to the surface of the motor housing, thereby reducing lateral leakage of airflow and ensuring heat exchange efficiency.

[0019] Compared with the prior art, the advantages of the present invention are as follows:

[0020] When the motorcycle is moving forward, the airflow generated by the speed difference in the airflow structure of this motor flows from the front over the surface of the motor housing. When the airflow reaches the rear of the motor housing, it flows into the cooling air duct along the deflector and the baffle. Constrained by the baffle and the outer wall of the motor housing, the airflow can flow along the leeward side of the rear of the motor housing and exit from the lower end of the baffle. In this way, the airflow carries away the heat dissipated from the leeward side of the motor housing, achieving a uniform and stable cooling effect for the motor. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of this embodiment.

[0022] Figure 2 This is a three-dimensional structural schematic diagram from another angle of this embodiment.

[0023] Figure 3 This is a cross-sectional structural diagram of this embodiment.

[0024] Figure 4 This is a three-dimensional structural diagram of the windshield and outer cover in this embodiment.

[0025] Figure 5 This is a three-dimensional structural diagram of a partial structure in this embodiment.

[0026] In the diagram, 1 is the motor housing; 11 is the heat dissipation fin.

[0027] 2. Wind vane; 21. Protrusion; 22. Air intake vane; 221. Air intake section; 222. Steering section; 23. Deflector;

[0028] 3. Cooling air duct;

[0029] 4. Outer cover plate; 41. Arc-shaped notch;

[0030] 5. Gearbox body. Detailed Implementation

[0031] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings to further illustrate the technical solutions of the present invention. However, the present invention is not limited to these embodiments.

[0032] like Figure 1-4As shown, in the air-cooled structure of this motorcycle motor, the motorcycle includes a cylindrical motor housing 1 arranged laterally along the motorcycle. The air-cooled structure includes a baffle 2 located directly behind the motor housing 1. The baffle 2 is arranged in the vertical direction, with its surface facing forward. The baffle 2 has an air-guiding plate 22 with its upper end tilted forward. The upper end of the air-guiding plate 22 is higher than the top of the motor housing 1. A vertically penetrating cooling air duct 3 is formed between the air-guiding plate 22, the baffle 2, and the outer wall of the motor housing 1. Electric motorcycles use an electric motor instead of an engine as their power source. The motor housing 1 on the motorcycle is used to house and install the motor components. By setting a vertically oriented air intake 2 at the rear of the motor housing 1, the air intake 2 can be made of metal or plastic. The air guide plate 22 at the upper end of the air intake 2 is vertically higher than the top of the motor housing 1, thus forming a cooling air duct 3 between the air guide plate 22, the air intake 2, and the motor housing 1. When the motorcycle moves forward, the airflow formed by the speed difference will flow from the front over the surface of the motor housing 1. The airflow flowing over the motor housing 1 from above can flow backward towards the air guide plate 22 and be guided by the air guide plate 22 to flow smoothly downward into the cooling air duct 3, which helps to reduce airflow velocity loss and ensure heat exchange effect. Constrained by the air intake 2 and the outer wall of the motor housing 1, the airflow can flow along the leeward side of the rear of the motor housing 1 and flow out from the lower end of the air intake 2. In this way, the airflow carries away the heat emitted from the leeward side of the motor housing 1, achieving a uniform and stable cooling effect for the motor. Specifically, the air intake plate 22 is located at the upper end of the baffle plate 2. The upper edge of the air intake plate 22 is vertically opposite to the rear edge of the motor housing 1. When the airflow passes through the cylindrical surface of the motor housing 1, it is affected by the negative pressure of the leeward side and converges towards the leeward side. This design allows the upper end of the air intake plate 22 to maintain a more reasonable distance from the surface of the motor housing 1, avoiding interference with the convergence effect of the airflow close to the surface of the motor housing 1. At the same time, the airflow from above enters the cooling air duct 3 normally, thereby ensuring the high air intake and cooling effect of the cooling air duct 3. The air intake plate 22 includes an air intake section 221 and a steering section 222 connected in sequence. The steering section 222 is inclined downward relative to the air intake section 221, and the lower end of the steering section 222 is connected to the baffle plate 2. The motorcycle also includes a gearbox body 5 for accommodating the transmission mechanism. The motor housing 1 and the gearbox body 5 are integrally connected, and the baffle plate 2 is fixed to the gearbox body 5. This allows for a more convenient and compact connection of the motor's output power to the gearbox body 5. Simultaneously, the gearbox body 5 constrains the airflow path within the cooling duct 3, reducing lateral airflow escape and improving heat exchange efficiency. The center of the baffle 2 has a forward-arching protrusion 21, which aligns directly with the axis of the motor housing 1 along the front-rear direction. This creates a constriction structure between the protrusion 21 and the motor housing 1 within the cooling duct 3, increasing the local airflow velocity in this area and allowing the airflow to approach the motor housing 1 more closely for heat exchange, thus enhancing the cooling and heat exchange effect. The lower end of the baffle 2 has a guide vane 23 that slopes forward.In this way, the guide plate 23 allows the airflow within the cooling duct 3 to exit closer to the outlet of the motor housing 1, thereby fully absorbing the surface heat of the motor housing 1 at the end of the cooling duct 3 and improving the heat exchange uniformity. The guide plate 23 is located below and close to the protrusion 21. This ensures that after the airflow exits at high speed from the constriction structure in the cooling duct 3, it can still maintain high-speed flow between the guide plate 24 and the motor housing 1, thus achieving heat dissipation through most of the airflow and the motor housing 1, improving the heat dissipation effect.

[0033] like Figure 1 , Figure 2 , Figure 4 As shown, a vertically arranged and forward-extending outer cover plate 4 is connected to the air duct 2. The inner side of the outer cover plate 4 is directly opposite the cooling air duct 3 along its lateral direction, and the air guide plate 22 is connected to the inner side of the outer cover plate 4. In this way, the outer cover plate 4 can further restrict the airflow in the cooling air duct 3, reduce the lateral escape of the airflow, and thus improve the heat exchange effect of the airflow in the cooling air duct 3. The outer cover plate 4 is inclined and bent outward from back to front. In this way, while ensuring that the cooling air duct 3 fully covers the rear side of the motor housing 1 and has sufficient air intake, the cross-sectional size of the rear side of the cooling air duct 3 can be reduced, thereby ensuring that most of the airflow can exchange heat with the motor housing 1 and improve the utilization effect of the airflow. Preferably, the outer cover plate 4 has an arc-shaped notch 41 on the side edge near the motor housing 1. The motor housing 1 is embedded in the arc-shaped notch 41, and the outer peripheral surface of the motor housing 1 is adapted to the shape of the arc-shaped notch 41. This helps to ensure that the edge of the outer cover plate 4 is close enough to the surface of the motor housing 1, thereby reducing the lateral leakage of the airflow and ensuring the heat exchange effect.

[0034] like Figure 3 , Figure 5 As shown, the surface of the motor housing 1 facing the air vent 2 has multiple circumferentially spaced heat dissipation fins 11. This improves the heat dissipation effect in this area, allowing the airflow through the cooling duct 3 to carry away more heat. The heat dissipation fins 11 are all arranged along the axial direction of the motor housing 1. In this way, the heat dissipation fins 11 can balance the temperature difference along the axial direction of the motor, making the overall heat exchange of the airflow in the cooling duct 3 more uniform.

[0035] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A wind-cooled structure for a motorcycle motor, the motorcycle including a cylindrical motor housing (1) arranged laterally along the motorcycle, characterized in that, The air-cooled structure includes a baffle plate (2) located behind the motor housing (1). The baffle plate (2) is arranged in the vertical direction with its surface facing forward. The baffle plate (2) has an air guide plate (22) with its upper end tilted forward. The upper end of the air guide plate (22) is higher than the top of the motor housing (1). The air guide plate (22), the baffle plate (2), and the outer wall of the motor housing (1) form a cooling air duct (3) that is connected vertically. The air-cooled structure also includes a vertically arranged and forward-extending outer cover plate (4). The baffle plate (2) is connected to the inner side of the outer cover plate (4). The outer cover plate (4) is directly opposite the cooling air duct (3) in the horizontal direction.

2. The air-cooled structure of the motorcycle motor according to claim 1, characterized in that, The air-guiding plate (22) is located at the upper end of the air-blocking plate (2). The air-guiding plate (22) includes an air-guiding section (221) and a turning section (222) connected in sequence. The turning section (222) is inclined downward relative to the air-guiding section (221), and the lower end of the turning section (222) is connected to the air-blocking plate (2).

3. The air-cooled structure of the motorcycle motor according to claim 1, characterized in that, The windproof flap (2) has a forward-arching protrusion (21) in the middle.

4. The air-cooled structure of the motorcycle motor according to claim 3, characterized in that, The lower end of the wind deflector (2) has a guide plate (23) with its lower end tilted forward. The guide plate (23) is located below and close to the protrusion (21).

5. The air-cooled structure of the motorcycle motor according to claim 1, 2, 3, or 4, characterized in that, The motorcycle also includes a gearbox body (5), the motor housing (1) and the gearbox body (5) are integrally connected, and the windshield (2) is fixedly connected to the gearbox body (5).

6. The air-cooled structure of the motorcycle motor according to claim 1, 2, 3, or 4, characterized in that, The outer cover (4) is inclined outward from back to front.

7. The air-cooled structure of the motorcycle motor according to claim 1, 2, 3, or 4, characterized in that, The outer cover plate (4) has an arc-shaped notch (41) on the side edge near the motor housing (1), the motor housing (1) is embedded in the arc-shaped notch (41) and the outer peripheral surface of the motor housing (1) is adapted to the shape of the arc-shaped notch (41).

8. The air-cooled structure of the motorcycle motor according to claim 1, 2, 3, or 4, characterized in that, The surface of the motor housing (1) facing the vent plate (2) has heat dissipation ribs (11).

9. The air-cooled structure of the motorcycle motor according to claim 8, characterized in that, The heat dissipation fins (11) are arranged along the axial direction of the motor housing (1).

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