TWM567741U - Control system of electric scooter - Google Patents

Abstract

A control system for an electric motor vehicle for controlling the rotational speed of a rotating shaft of an electric motor mounted inside a body, comprising an assembly space formed inside the body; a circuit board installed in the assembly space and electrically Connecting the electric motor; a recess is formed on one side of the circuit board; such that the circuit board abuts against the rotating shaft, so that the rotating shaft enters the concave area, the combined configuration takes up less space, and the body is lowered. The effect of volume.

Description

Electric car control system

This creation relates to the technical field of an electric motor vehicle, and in particular to the control system of an electric motor vehicle.

In general, electric motor vehicles currently use a motor as a power source, and then transmit torque to the wheels through the transmission to drive the vehicle forward. As for the rotation speed of the rotating shaft of the motor, it can be achieved by a controller.

Conventionally, the motor is mounted on a body, and the controller is mounted in a box for a circuit board. The casing and the casing are independent components, and the motor and the circuit board are connected by appropriate wires to form an electrical connection.

Since the body and the casing are separate components, the space occupied by the body and the casing is relatively large. Even if the circuit board is integrated into the body, the space of the body is poor due to the shape of the square plate of the circuit board, and the volume cannot be effectively and significantly reduced.

This creation is to solve the problem that the conventional circuit board is integrated and the body cannot effectively reduce the volume.

The purpose of the present invention is to provide a control system for an electric motor vehicle, which has the ability to integrate a circuit board into a body, and the circuit board is close to a rotating shaft of a motor mounted on the body, thereby achieving a reduction in integration of the body. volume.

The purpose of the present invention is to provide a control system for an electric motor vehicle, which has a heat dissipation space separated by the inside of the body and adjacent to the circuit board, and transmits heat generated by the circuit board to the heat dissipation space, thereby improving Cooling efficiency.

In order to achieve the above objects and effects, the control system disclosed in the present invention is for controlling the rotational speed of a rotating shaft of an electric motor installed inside a body, which comprises an assembly space formed inside the body; a circuit board is installed at The electric motor is electrically connected to the assembly space; a recess is formed on one side of the circuit board.

In this way, the circuit board is opposite to the rotating shaft, so that the rotating shaft enters the hollow range, thereby achieving the effect that the combined configuration takes up less space and reduces the volume of the body.

In addition, the opposite side of the assembly space has a heat dissipation space, and heat generated by the circuit board can be transferred to the heat dissipation space, thereby improving the heat dissipation effect.

Referring to FIG. 1 , the power component of the electric motor vehicle is an electric motor 12 and a driven gear 14 disposed inside the body 10 . Additionally, a control system (not shown) is coupled to the body and electrically coupled to the electric motor 12. The control system is used to control the rotational speed of the electric motor 12.

Referring to FIGS. 2 and 3, the body 10 is a base 20 coupled to a joint 30. A partition layer 40 is formed on the base 20 such that one side of the partition layer 40 is an assembly space 50 (see FIG. 3), and one end of the rotating shaft 16 of the electric motor 12 passes through the partition layer 40 to the assembly. Space 50. In particular, a shaft cover 18 is seated in the partition layer 40, and one end of the shaft 16 is received in the shaft cover 18.

Referring to Figures 3 and 4, the present creative embodiment includes a circuit board 60. One side of the circuit board 60 has a recess 62. The circuit board 60 is for mounting in the assembly space 50. In particular, the circuit board 60 is biased toward the rotating shaft 16 such that the rotating shaft 16 enters the recess 62. The circuit board 60 is a component of the control system and is electrically connected to the electric motor (not shown). A cover plate 64 is used to close the assembly space 50.

Since the rotating shaft 16 can pass through the range of the recess 62, the circuit board 60 can be brought closer to the rotating shaft 16; in other words, the space occupied by the rotating shaft 16 and the circuit board 60 can be reduced, thereby making the volume of the body 10 Can shrink.

Referring to FIG. 5 , one side of the separation layer 40 is the assembly space 50 . The circuit board 60 is mounted in the assembly space 50 and can abut the separation layer 40 . Further, the other side of the separation layer 40 is a heat dissipation space 70. Thus, the heat dissipation space 70 and the circuit board 60 are respectively located on opposite sides of the separation layer 40, and heat generated by the circuit board 60 can be transmitted to the separation layer 40 for heat dissipation. Further, the heat dissipation space 70 may be filled with an oil such as lubricating oil or oil, so that heat from the separation layer 40 can be quickly absorbed.

Referring to FIGS. 2 and 5 again, the heat dissipation space 70 may have a plurality of defoaming ribs 72. The foam generated by the oil flowing to the heat dissipation space 70 can be quickly eliminated by the respective defoaming ribs 72. In addition, each of the defoaming ribs 72 can increase the surface area of the heat dissipating space 70, so that heat dissipation efficiency can be improved.

The control system disclosed in this embodiment includes a circuit board structure and a heat dissipation structure, wherein the circuit board structure is shaped to match the rotating shaft, so that the combination of the two takes up less space, thereby reducing the volume of the body. Furthermore, the heat dissipation structure is in close contact with one side of the circuit board, and the oil contained in the power component can be used for heat dissipation, so that no additional heat dissipation machine is required and a good heat dissipation effect can be obtained.

The above is a preferred embodiment and a design of the present invention. The preferred embodiments and the design drawings are merely illustrative and are not intended to limit the scope of the present invention. The scope of the rights covered by the contents of the "Scope of Application for Patent Application" is not within the scope of this creation and is the scope of the applicant's rights.

10‧‧‧ body

12‧‧‧Electric motor

14‧‧‧ driven gear

16‧‧‧ shaft

18‧‧‧ shaft cover

20‧‧‧ Pedestal

30‧‧‧links

40‧‧‧Separation layer

50‧‧‧Assembly space

60‧‧‧ boards

62‧‧‧ ‧ hollow

64‧‧‧ Cover

70‧‧‧heating space

72‧‧‧Defoaming ribs

Fig. 1 is an external view of the electric motor and the driven gear disposed inside the body of the present invention. Fig. 2 is an exploded view of the electric motor and the driven gear disposed inside the body of the present invention. Figure 3 is an exploded view of the body and board of the creation. Fig. 4 is a schematic view showing the installation state of the circuit board of the present invention. Fig. 5 is a schematic view showing the installation structure of the circuit board and the rotating shaft of the present invention.

Claims (6)

A control system for an electric motor vehicle for controlling a rotational speed of a rotating shaft of an electric motor mounted inside a body, comprising: an assembly space formed inside the body; a circuit board mounted on the assembly The electric motor is electrically connected to the electric motor; a recess is formed on one side of the circuit board; wherein the circuit board abuts against the rotating shaft, so that the rotating shaft enters the concave range. The control system for an electric motor vehicle according to claim 1, wherein one side of the assembly space is a partition layer, and the circuit board is assembled on one side of the separation layer. The control system structure of the electric motor vehicle according to claim 2, further comprising a heat dissipation space, the heat dissipation space being located on the other side of the separation layer, such that the heat dissipation space and the circuit board are respectively located in the separation layer The two sides are different. The control system structure of the electric motor vehicle according to claim 3, wherein the heat dissipation space is capable of filling the oil. The control system structure of the electric motor vehicle according to claim 3, wherein the heat dissipation space has a plurality of defoaming ribs. The control system structure of the electric motor vehicle according to claim 2, wherein the base of the machine system is combined with a joint, the partition layer is formed on the base, so that one side of the partition layer is assembled. In the space, one end of the rotating shaft of the electric motor passes through the separating layer to the assembly space.