Electric automobile with driving motor heat dissipation structure

Abstract

The utility model discloses an electric automobile with a driving motor heat dissipation structure. The electric automobile comprises an automobile frame, wheels for supporting the automobile frame and a driving motor for driving the automobile frame to walk. The driving motor drives the walking wheels to rotate, the driving motor is sleeved with a heat dissipation sleeve, a partition plate is arranged in the heat dissipation sleeve, the heat dissipation sleeve is provided with an air inlet channel and an air outlet channel, the air inlet channel is used for guiding air into the heat dissipation sleeve when the automobile walks, and the air outlet channel is used for guiding air into the heat dissipation sleeve when the automobile walks. Air introduced by the air inlet channel flows out of the air outlet channel after passing through the heat dissipation sleeve, the air inlet channel and the air outlet channel are distributed at the two circumferential ends of the driving motor and located on the two sides of the partition plate, and the included angle between the air inlet channel and the air outlet channel is 330 degrees or above. According to the automobile provided with the electric braking system, the driving motor can be cooled through wind generated when the automobile walks, and the cooling problem of the driving motor is solved.

Description

Technical Field

[0001] The utility model relates to an automobile, in particular to an electric automobile provided with a heat dissipation structure of a driving motor. Background Art

[0002] For the convenience of operation and energy saving, electric vehicles are designed, and the on-board battery is used as the power source of the electric vehicle. The existing electric vehicle driving motor is provided with a cooling fan for heat dissipation like the existing motor heat dissipation method, and this heat dissipation method cannot use the wind generated by the running of the car for heat dissipation. Utility Model Content

[0003] The utility model aims to provide a car with an electric brake system which can utilize wind generated by the running of the car to dissipate heat for a driving motor, thereby solving the heat dissipation problem of the driving motor.

[0004] The above technical problems are solved by the following technical solutions: An electric car with a drive motor heat dissipation structure includes a frame, wheels supporting the frame and a drive motor driving the frame to move, characterized in that it also includes a drive motor driving the travel wheel to rotate, a heat dissipation sleeve is provided on the drive motor, a partition is provided in the heat dissipation sleeve, and the heat dissipation sleeve is provided with an air inlet channel and an air outlet channel, the air inlet channel is used to introduce air into the heat dissipation sleeve when the car is moving, and the air introduced by the air inlet channel flows out from the air outlet channel after passing through the heat dissipation sleeve, the air inlet channel and the air outlet channel are distributed at both ends of the circumference of the drive motor and are located on both sides of the partition, and the angle between the air inlet channel and the air outlet channel is more than 330°. When the car is moving, the airflow enters the heat dissipation sleeve through the air inlet channel and flows out from the kitchen channel, thereby realizing the heat dissipation of the drive motor. The heat dissipation effect is good.

[0005] Preferably, the opening direction of the inlet end of the air inlet channel faces downward, the rear side wall of the air inlet channel faces downward beyond the front side wall of the air inlet channel, the rear side wall of the air inlet channel is inclined with the lower end facing forward, and the part of the rear side wall of the air inlet channel that exceeds the front side wall of the air inlet channel and is horizontally directed to the rear side wall of the air inlet channel is reflected onto the inner surface of the front side wall of the air inlet channel, so that the airflow can fully enter the heat dissipation sleeve to dissipate heat for the motor when the car is running.

[0006] Preferably, the opening area of ​​the air inlet channel gradually increases from the inlet end to the outlet end, so that the air inlet heat dissipation effect is good.

[0007] Preferably, the inner circumference of the heat dissipation sleeve is a cylindrical surface coaxial with the drive motor, and the directionality of the outlet end of the air inlet channel is tangent to the inner surface of the heat dissipation sleeve, so that the flow resistance when entering is small.

[0008] Preferably, the outlet end of the air outlet channel opens backwards. The outflowing wind can assist the vehicle in driving and reduce the increase in vehicle load caused by the incoming wind.

[0009] Preferably, a brake cover is provided at the rear end of the frame, the front surface of the brake cover is concave and the rear surface is convex, and the brake cover is connected to the frame through a horizontally retractable electric cylinder; when braking, the electric cylinder moves the brake cover backward by a set distance so that an air intake gap is generated between the brake cover and the rear end of the frame; during driving, the electric cylinder contracts so that the front end of the brake cover fits on the rear end of the frame, which can improve the braking effect of the car.

[0010] Preferably, the vehicle further comprises a sliding sleeve connected to the vehicle frame and a guide rod with one end extending in the front-rear direction and passing through the sliding sleeve, and the other end of the guide rod is fixed to the brake cover, so as to prevent the brake cover from rotating.

[0011] Preferably, the center of the brake cover is provided with an air outlet, and when the front end of the brake cover is attached to the rear end of the frame, the outlet end of the air outlet channel is arranged in the air outlet, and when braking, the outlet end of the air outlet channel is located in front of the brake cover and inside the brake cover; when braking, the drive motor is reversed to assist braking, so that the heat dissipation airflow can flow out better and faster during braking, thereby improving the heat dissipation effect.

[0012] The utility model has the following beneficial effects: good heat dissipation effect on the drive motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the state of the brake hood when the utility model is driving;

[0014] Figure 2 It indicates the state of the brake hood when the car brakes.

[0015] In the figure: a vehicle frame 13, a rear wheel 21, a drive motor 35, a heat sink 36, a partition 37, an air inlet channel 38, an air outlet channel 39, a rear side wall 40 of the air inlet channel, a front side wall 41 of the air inlet channel, a portion 42 of the rear side wall of the air inlet channel that exceeds the front side wall of the air inlet channel, a brake cover 43, a rear surface 44 of the brake cover, an electric cylinder 45, an air inlet gap 46, a sliding sleeve 47, a guide rod 48, and an air outlet 49. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1 and Figure 2 An electric vehicle with a drive motor heat dissipation structure includes a frame 13 and wheels supporting the frame, the wheels including a front wheel 20 and a rear wheel 21. It also includes a drive motor 35 for driving the running wheel to rotate, and a heat dissipation sleeve 36 is provided on the drive motor. The heat dissipation sleeve is a heat-conducting structure. A partition 37 is provided in the heat dissipation sleeve, and the heat dissipation sleeve is provided with an air inlet channel 38 and an air outlet channel 39. The air inlet channel is used to introduce air into the heat dissipation sleeve when the car is running, and the air introduced by the air inlet channel flows out from the air outlet channel after passing through the heat dissipation sleeve. The air inlet channel and the air outlet channel are distributed at both ends of the circumference of the drive motor and are located on both sides of the partition. The angle between the air inlet channel and the air outlet channel is more than 22°. The opening direction of the inlet end of the air inlet channel faces downward, the rear side wall 40 of the air inlet channel faces downward and exceeds the front side wall 41 of the air inlet channel, the rear side wall of the air inlet channel is inclined with the lower end facing forward, and the part 42 of the rear side wall of the air inlet channel that exceeds the front side wall of the air inlet channel and is horizontally projected to the air inlet channel is reflected to the inner surface of the front side wall of the air inlet channel. The opening area of ​​the air inlet channel gradually increases from the inlet end to the outlet end. The inner circumference of the heat dissipation sleeve is a cylindrical surface coaxial with the drive motor, and the directionality of the outlet end of the air inlet channel is tangent to the inner surface of the heat dissipation sleeve. The opening direction of the outlet end of the air outlet channel faces backward. A brake cover 43 is provided at the rear end of the frame, the front surface of the brake cover is concave, and the rear surface 44 of the brake cover is convex. The brake cover is connected to the frame through a horizontally telescopic electric cylinder 45; when braking, the electric cylinder channel moves the brake cover backward by a set distance so that an air inlet gap 46 is generated between the brake cover and the rear end of the frame; the electric cylinder is contracted during driving so that the front end of the brake cover fits on the rear end of the frame. The vehicle also includes a sliding sleeve 47 connected to the vehicle frame and a guide rod 48 extending in the front-rear direction and having one end inserted in the sliding sleeve, and the other end of the guide rod is fixed to the brake cover. An air outlet 49 is provided in the center of the brake cover, and when the front end of the brake cover is attached to the rear end of the vehicle frame, the outlet end of the air outlet channel is inserted in the air outlet hole, and when braking, the outlet end of the air outlet channel is located at the front side of the brake cover and inside the brake cover; when braking, the driving motor is reversed to perform power-assisted braking.

[0018] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0019] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric vehicle with a drive motor heat dissipation structure, comprising a frame, wheels supporting the frame, and a drive motor driving the frame, characterized in that: It also includes a driving motor for driving the running wheel to rotate, the driving motor is provided with a heat dissipation sleeve, the heat dissipation sleeve is provided with a partition, the heat dissipation sleeve is provided with an air inlet channel and an air outlet channel, the air inlet channel is used to introduce air into the heat dissipation sleeve when the car is moving, the air introduced by the air inlet channel flows out from the air outlet channel after passing through the heat dissipation sleeve, the air inlet channel and the air outlet channel are distributed at both ends of the circumference of the driving motor and are located on both sides of the partition, and the angle between the air inlet channel and the air outlet channel is greater than 330°.

2. The electric vehicle with a drive motor heat dissipation structure according to claim 1, characterized in that: The opening direction of the inlet end of the air inlet channel faces downward, and the rear side wall of the air inlet channel extends downward beyond the front side wall of the air inlet channel. The rear side wall of the air inlet channel is inclined with the lower end facing forward, and the part of the rear side wall of the air inlet channel that extends beyond the front side wall of the air inlet channel and is horizontally directed toward the air inlet channel is reflected onto the inner surface of the front side wall of the air inlet channel.

3. The electric vehicle with a drive motor heat dissipation structure according to claim 2, characterized in that: The opening area of ​​the air inlet channel gradually increases from the inlet end to the outlet end.

4. An electric vehicle with a drive motor heat dissipation structure according to claim 2 or 3, characterized in that: The inner circumferential surface of the heat dissipation sleeve is a cylindrical surface coaxial with the drive motor, and the directionality of the outlet end of the air inlet channel is tangent to the inner surface of the heat dissipation sleeve.

5. An electric vehicle with a drive motor heat dissipation structure according to claim 1, 2 or 3, characterized in that: The opening direction of the outlet end of the air outlet channel faces backward.

6. The electric vehicle with a drive motor heat dissipation structure according to claim 5, characterized in that: A brake hood is provided at the rear end of the frame, the front surface of the brake hood is concave and the rear surface is convex, and the brake hood is connected to the frame through a horizontally telescopic electric cylinder; when braking, the electric cylinder channel moves the brake hood backward by a set distance so that an air intake gap is generated between the brake hood and the rear end of the frame; during driving, the electric cylinder contracts so that the front end of the brake hood fits against the rear end of the frame.

7. The electric vehicle with a drive motor heat dissipation structure according to claim 6, characterized in that: It also includes a sliding sleeve connected to the vehicle frame and a guide rod with one end inserted into the sliding sleeve and extending in the front-rear direction, and the other end of the guide rod is fixed to the brake cover.

8. The electric vehicle with a drive motor heat dissipation structure according to claim 6, characterized in that: An air outlet is provided at the center of the brake cover. When the front end of the brake cover is attached to the rear end of the frame, the outlet end of the air outlet channel is inserted into the air outlet hole. When braking, the outlet end of the air outlet channel is located in the front side of the brake cover and inside the brake cover. When braking, the drive motor reverses to perform power-assisted braking.

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