Patent ID: 12257859

Reference signs in the attached figures:1, first disc brake;2, upper shell;3, wheel rim;4, motor center shaft;5, motor body;6, fixed bolt;7, limit cap;8, lower shell;9, second disc brake;10, base layer;11, first reinforced layer; and12, second reinforced layer.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The technical schemes according to embodiments of the present disclosure are clearly and completely described in the following with reference to the attached figures in the present disclosure. Apparently, the embodiments in the following description are merely a part rather than all of the embodiments of the present disclosure. Based on the embodiment in the present disclosure, all other embodiments obtained by the ordinary technical staff in the art under the premise of without contributing creative labor belong to the scope protected by the present disclosure.

Referring toFIG.1toFIG.4, in an embodiment provided by the present disclosure, an electric vehicle motor with double disc brakes includes a first disc brake1, a motor body5, fixed bolts6and a second disc brake9. A wheel rim3is fixedly arranged on an outer surface of the electric vehicle motor5. An upper shell2is fixedly arranged at an upper end of the wheel rim3, and a lower shell8is fixedly arranged at a lower end of the wheel rim3. The upper shell2, the wheel rim3and the lower shell8all include a base layer10. A first reinforced layer11is fixedly arranged on an outer surface of the base layer10, and a second reinforced layer12is fixedly arranged on an outer surface of the first reinforced layer11. The base layer10is made of carbon fiber materials, and the first reinforced layer11is made of polyimide films. The second reinforced layer12is made of ceramic insulating materials. The first disc brake1and the second disc brake9are both made of aluminum alloy materials.

Specifically, for the existing electric bicycle, the electric bicycle motor is provided with a single-sided disc brake, the braking effect is poor in long-time downhill periods or on rainy days, and it is easy to cause traffic accidents due to poor braking under the condition of high speed. The electric vehicle motor is provided with a first disc brake1and a second disc brake9. The problem of braking may be well solved through double disc brakes, and traffic accidents due to poor braking of the electric vehicle at high speed, in long-time downhill periods or on rainy days may be effectively solved. Moreover, the first disc brake1and the second disc brake9are both made of aluminum alloy materials since the aluminum alloy materials are excellent in heat dissipation performance and may quickly dissipate heat generated by friction in the braking process to prevent brake pads from overheating to cause decline in braking effect. Meanwhile, low weight is also beneficial to reducing the overall load of the vehicle to improve the control performance of the vehicle. Moreover, the upper shell2, the wheel rim3and the lower shell8are designed through the base layer10, the first reinforced layer11and the second reinforced layer12. The base layer10is made of carbon fiber materials. The materials have the characteristics of high strength and low density, and provides a firm infrastructure for the whole shell, so that external shocks and pressure may be effectively resisted. The first reinforced layer11is made of polyimide films, so that the flexibility and tensile resistance of the shell are further enhanced, and high structural integrity may be kept under different working conditions. The second reinforced layer12is made of ceramic insulating materials, so that the influence of electromagnetic interference generated by the motor on other components may be effectively prevented. Meanwhile, the high temperature resistance of the shell is also promoted to ensure that the upper shell2, the wheel rim3and the lower shell8may still operate normally under high temperature environments when the motor operates to produce heat and during braking, so that the safety of the motor and other components is guaranteed. Moreover, in the present disclosure, the number of motor spokes is increased, 36-hole spokes are changed into 72-hole spokes, it is not easy to lead to spoke fracture since the number of motor spoke is increased, so that the cycling safety of the electric vehicle is stabilized.

Referring toFIG.1andFIG.2, the first disc brake1is fixedly arranged at an upper end of the upper shell2through the fixed bolts6, and the second disc brake9is fixedly arranged at an upper end of the lower shell8through the fixed bolts6. Motor center shafts4are fixedly arranged at output ends on both sides of the motor body5. Limit caps7are arranged on outer surfaces of the two motor center shafts4through threads.

Specifically, the first disc brake1is fixedly arranged at the upper end of the upper shell2through the fixed bolts6, and the second disc brake9is fixedly arranged at the upper end of the lower shell8through the same fixed bolts6. The position and installation method are well-designed to ensure that the disc brakes may accurately make contact with the wheel rim3during braking to produce enough frictional force. The first disc brake1and the second disc brake9are of symmetric layout, and jointly provide stable and strong braking force for the vehicle. The motor center shafts4are fixedly arranged at output ends on both sides of the motor body5. The motor center shafts4are taken as core components for power transmission. The balance is kept by controlling the position of the mass center of a rotating part of the motor. The limit caps7are arranged on outer surfaces of the two motor center shafts4through threads. The limit caps7are made of nylon materials, and are of certain elasticity and abrasion performance. During the operation process of the motor, the limit caps7may effectively prevent the motor center shafts4from axially floating to ensure stable operation of the motor and avoid motor faults and potential safety hazards caused by center shaft displacement.

The working principle is as follows. The problem of braking may be well solved through double disc brakes when the electric vehicle motor is used. Traffic accidents due to poor braking of the electric vehicle at high speed, in long-time downhill periods or on rainy days may be effectively solved. Moreover, the first disc brake1and the second disc brake9are both made of aluminum alloy materials since the aluminum alloy materials are excellent in heat dissipation performance and may quickly dissipate heat generated by friction in the braking process to prevent the brake pads from overheating to cause decline in braking effect. Meanwhile, low weight is also beneficial to reducing the overall load of the vehicle to improve the control performance of the vehicle. The upper shell2, the wheel rim3and the lower shell8are designed through the base layer10, the first reinforced layer11and the second reinforced layer12. The base layer10is made of carbon fiber materials. The first reinforced layer11is made of polyimide films. The second reinforced layer12is made of ceramic insulating materials, so that the influence of electromagnetic interference generated by the motor on other components may be effectively prevented. Meanwhile, the high temperature resistance of the shell is also promoted to ensure that the upper shell2, the wheel rim3and the lower shell8may still operate normally under high temperature environments when the motor operates to produce heat and during braking, so that the safety of the motor and other components is guaranteed.

Finally, it should be noted that the above description is merely a preferred example of the present disclosure and is not intended to limit the present disclosure. Although the present disclosure is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they may still make modifications to the technical schemes described in the foregoing embodiments or make equivalent replacements to some technical features thereof. Any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the present disclosure shall fall within the protection scope of the present disclosure.