Power output device of electric vehicle

Abstract

The utility model discloses a power output device of an electric vehicle, which solves the problems of inconvenience in wiring, poor structural compactness and large lead energy loss caused by larger corresponding structural distance on a main loop of the existing electric vehicle, and adopts the technical scheme that the power output device of the electric vehicle comprises a storage battery, a controller and a motor, the storage battery is electrically connected with the controller through a wire, the controller is electrically connected with the motor through a wire, and the electric vehicle is characterized in that the storage battery, the controller and the motor are linearly arranged, the controller is arranged between the storage battery and the motor, and the motor is arranged at the position of a rear wheel of the electric vehicle; and the controller is electrically connected with a power utilization unit and an electric controller which are arranged on the front side of the electric vehicle through a main cable.

Description

Technical Field

[0001] The utility model relates to an electric vehicle, in particular to a power output device for the main circuit of the electric vehicle. Background Art

[0002] Electric vehicles use electricity as their working power, and each power-consuming unit on an electric vehicle generally needs to be electrically connected to the controller via wires. There are relatively more electronic controls and power-consuming units on the front side of an electric vehicle, such as the headlights, left and right turn signals, horns, instrument displays and other power-consuming units, as well as the high and low beam switch for the headlights, corresponding switches for various lights, throttle speed control mechanisms, horn control switches, power control switches, parking controls and other electronic controls. There are also some communication signal lines for vehicle speed, battery power, parking safety, etc. The main circuit of an electric vehicle includes batteries, controllers and motors, and these three also need to be connected by wires, and the power-consuming units and electronic controls on the front side of the electric vehicle also need to be electrically connected by wires. In existing electric vehicles, the controller is generally set under the seat of the electric vehicle, and the electrical connection distance between it and the motor and battery is long, and it is also inconvenient to arrange the wires and other power-consuming units or electronic controls.

[0003] A Chinese patent document (publication number: CN 213168402U) discloses an electric vehicle controller connection device for installing and fixing the controller on an electric vehicle, solving the problems of existing electric vehicle controllers being inconvenient to set up, having poor stability, and not being well adapted to short-distance settings between the controller and the battery. The technical solution adopted is: an electric vehicle controller connection device including a connection frame, characterized in that the connection frame is bridged to the vehicle frame, with both ends of the frame welded and fixed to the vehicle frame, and a sunken mounting opening is provided in the middle of the connection frame, the mounting opening being U-shaped, and the controller is embedded and fixed in the mounting opening.

[0004] This connection device is used to install the controller, but does not take into account the wiring distance between the main circuits. The structural compactness between the main circuits is poor, and the energy loss of the wires in the main circuits is large. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an electric vehicle power output device, which has a compact structure and a short wiring distance between main circuits.

[0006] In order to solve the technical problem, the technical solution of the present invention is: a power output device for an electric vehicle, including a battery, a controller and a motor, the battery and the controller are electrically connected by a wire, and the controller and the motor are electrically connected by a wire. It is characterized in that the battery, the controller and the motor are arranged in a straight line, the controller is arranged between the battery and the motor, and the motor is arranged at the rear wheel position of the electric vehicle; the controller is electrically connected to the power unit and the electronic control arranged on the front side of the electric vehicle through a main cable.

[0007] The main cable contains several wires, the number of which is needed to meet the electrical connection requirements of the power unit and electronic control installed on the front of the electric vehicle. The battery is installed in the pedal part of the electric vehicle, the controller is located behind the battery, and the motor is installed in the rear wheel hub position of the electric vehicle.

[0008] Furthermore, a fixing plate is provided at the front end of the rear fork on the rear side of the electric vehicle frame. The controller is mounted on this fixing plate. The wires electrically connecting the motor and the controller are formed into a rear cable, which extends and is fixed to the rear fork. This requires that the wires between the controller and the battery have a certain length to accommodate the movement of the rear fork. Placing the controller at the front end of the rear fork can effectively utilize the space on the electric vehicle and is convenient for installation.

[0009] Furthermore, the battery is composed of several pieces, which are connected in series through wiring, and a circuit breaker is connected in series to one of the wirings. The circuit breaker is provided to implement short-circuit and fuse protection on the main circuit, reducing intermediate short-circuit fuse components and improving the power safety of the electric vehicle.

[0010] Furthermore, the batteries are divided into two groups, the two groups of batteries are arranged side by side on opposite sides of the straight line, and the circuit breaker is connected in series between the two groups of batteries.

[0011] Furthermore, the two battery groups have a gap in a direction perpendicular to the straight line, the gap is located in the straight line, and the circuit breaker is arranged at the front end of the gap. This facilitates the installation of the circuit breaker and also facilitates manual operation of the button on the circuit breaker.

[0012] Furthermore, a support beam is provided on the vehicle frame, with its ends respectively connected to two coupling structures on the vehicle frame. The support beam is embedded in the gap and provided with a plurality of protruding crimping structures, which are crimped onto the battery. The provision of the support beam achieves crimping of the battery, thereby ensuring stable positioning of the battery and improving the battery's anti-theft capabilities.

[0013] Furthermore, the front end of the support beam is hingedly connected to the corresponding connecting structure, and the rear end of the support beam is detachably connected to the corresponding connecting structure. The circuit breaker is fixed to the front end of the support beam. When replacing the battery, the support beam needs to rotate to a certain extent. The length of the wiring between the circuit breaker and the battery is preferably adapted to the movement of the support beam. Placing the circuit breaker directly on the support beam ensures good positional stability and facilitates installation of the circuit breaker.

[0014] Compared with the existing technology, the present invention has the following advantages: the battery, controller, and motor are arranged in a straight line, which effectively utilizes the space inside the electric vehicle, shortens the wiring distance between the three, facilitates wiring, reduces the working energy loss of the wires, and improves the overall compactness. The integrated main cable is used to connect the power unit on the front side of the electric vehicle and the electronic control and controller, making wiring convenient and easy to achieve electrical connection and plug-in. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a top view of an electric vehicle with the power output device.

[0016] Figure 2 yes Figure 1 Stereoscopic image.

[0017] Figure 3 This is the main view of the power output device.

[0018] Figure 4 yes Figure 3 Stereoscopic image.

[0019] In the figure, 1. Battery; 2. Pressure rod; 3. Support beam; 4. Fixing plate; 5. Controller; 6. Shock absorber; 7. Rear cable; 8. Rear wheel; 9. Wire; 10. Connecting bolt; 11. Main cable; 12. Circuit breaker; 13. Crossbeam; 14. Wiring; 15. Motor; 16. Rear fork; 17. Spacer. DETAILED DESCRIPTION

[0020] In conjunction with the drawings in the specification, the electric vehicle power output device is arranged on the electric vehicle to provide power for the electric vehicle to move and to control the driving of the electric vehicle.

[0021] The structure of the power output device includes a battery 1, a controller 5 and a motor 15. A sunken accommodating chamber is provided at the position of the pedal part of the electric vehicle, and the battery 1 is installed in the accommodating chamber. The mouth of the accommodating chamber is covered with a cover plate, which forms the pedal part of the electric vehicle. The controller 5 is arranged on the rear side of the battery 1, and the motor 15 is arranged at the hub position of the rear wheel 8 of the electric vehicle. The controller 5 is located between the motor 15 and the battery 1, and the battery 1, the controller 5 and the motor 15 are arranged in a straight line. The battery 1 is electrically connected to the controller 5 through a wire 9, and the battery 1 provides power to each power-consuming unit on the electric vehicle. The controller 5 is electrically connected to the motor 15 through a wire 9, and the controller 5 controls the motor 15 to drive the rear wheel 8 to rotate.

[0022] The front side of the electric vehicle is provided with a plurality of power units and electronic controls, which are electrically connected to the controller 5 through a plurality of wires 9. These wires 9 are stranded together and covered with a hose to form a main cable 11. The main cable 11 is arranged along the frame to the front end of the electric vehicle to realize electrical connection with these power units and electronic controls.

[0023] A rear fork 16 is hinged to the rear end of the electric vehicle frame. A shock absorber 6 is installed between the rear fork 16 and the frame. The rear wheel 8 is rotatably connected to the rear end of the rear fork 16. A fixing plate 4 is welded to the front end of the rear fork 16, and the controller 5 is mounted on this fixing plate 4. The wire 9 that electrically connects the motor 15 and the controller 5 is formed into a rear cable 7. The rear cable 7 is bent into an L shape and extends and is fixed to the rear fork 16.

[0024] The figure shows several batteries 1 connected in series via wires 14. A circuit breaker 12 is connected in series to one of the wires 14. The batteries 1 are divided into two groups, arranged side by side on opposite sides of the straight line. The circuit breaker 12 is connected in series between the two groups. A gap 17 is defined between the two groups of batteries 1 in a direction perpendicular to the straight line. This gap 17 is located in the direction of the straight line, and the circuit breaker 12 is located at the front end of this gap 17.

[0025] A support beam 3 is provided on the vehicle frame, located midway across the width of the electric vehicle. It extends along the straight line and is embedded within the gap 17. The ends of the support beam 3 are connected to two connecting structures on the vehicle frame, formed by a crossbeam 13 bridging the frame. Several protruding crimping structures are provided on the support beam 3. Once the support beam 3 is installed, the crimping structures crimp onto the battery 1. These crimping structures are formed by a compression rod 2 perpendicular to the support beam 3. The compression rod 2 is fixed to the support beam 3 at its midway point along its length, and its ends are used to crimp onto a battery 1. The front end of the support beam 3 is hingedly connected to a crossbeam 13 provided at the front end of the corresponding vehicle frame. The rear end of the support beam 3 is connected to a crossbeam 13 provided at the rear end of the vehicle frame via a connecting bolt 10. The rear end of the support beam 3 can be connected to or disconnected from the crossbeam 13 by tightening the connecting bolt 10. The circuit breaker 12 is fixed to the front end of the support beam 3, and the button on the circuit breaker 12 faces outward. On the finished electric vehicle, a window can be provided at the corresponding position of the exterior panel, and the button faces the window, and the button on the circuit breaker 12 can be operated from the window.

Claims

1. A power output device for an electric vehicle, comprising a battery, a controller, and a motor, wherein the battery and the controller are electrically connected via a wire, and the controller and the motor are electrically connected via a wire, characterized in that: The battery, controller and motor are arranged in a straight line, the controller is set between the battery and the motor, and the motor is set at the rear wheel position of the electric vehicle; the controller is electrically connected to the power unit and electronic control set on the front side of the electric vehicle through a main cable.

2. The electric vehicle power output device according to claim 1, characterized in that: A fixing plate is provided at the front end of the rear fork on the rear side of the electric vehicle frame. The controller is installed on the fixing plate. The wires electrically connecting the motor and the controller are made into rear cables, which are extended and fixed on the rear fork.

3. The electric vehicle power output device according to claim 1 or 2, characterized in that: The batteries are in pieces, which are connected in series through wiring, and a circuit breaker is connected in series to one of the wirings.

4. The electric vehicle power output device according to claim 3, characterized in that: The batteries are divided into two groups, which are arranged in parallel on opposite sides of the straight line, and the circuit breaker is connected in series between the two groups of batteries.

5. The electric vehicle power output device according to claim 3, characterized in that: The two groups of batteries have a gap in a direction perpendicular to the straight line, the gap is located at the position of the straight line, and the circuit breaker is arranged at the front end of the gap.

6. The electric vehicle power output device according to claim 5, characterized in that: A support beam is provided on the vehicle frame, and both ends of the support beam are respectively connected to two connecting structures on the vehicle frame. The support beam is embedded in the interval, and a plurality of protruding pressing structures are provided on the support beam, which are pressed on the battery.

7. The electric vehicle power output device according to claim 6, characterized in that: The front end of the support beam is hinged to the corresponding connecting structure, the rear end of the support beam is detachably connected to the corresponding connecting structure, and the circuit breaker is fixed on the front end of the support beam.

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