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Secondary gearing-down brushless electric motor assembly

A brushless motor and two-stage deceleration technology, which is applied in motors, electromechanical devices, electric vehicles, etc., can solve the problems of affecting the service life of batteries, low work efficiency, and complex structure of drive motors, so as to achieve long working life and reduce manufacturing costs and maintenance cost, life extension effect

Inactive Publication Date: 2014-02-19
SICHUAN ACNASS ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a two-stage deceleration transmission brushless motor assembly, which has a two-stage deceleration function, so that the motorcycle can generate greater power and climbing force during driving, thereby solving the problem There are problems such as complex drive motor structure, low work efficiency, and impact on battery life in the technology

Method used

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  • Secondary gearing-down brushless electric motor assembly
  • Secondary gearing-down brushless electric motor assembly
  • Secondary gearing-down brushless electric motor assembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1 A two-stage reduction drive brushless motor assembly

[0025] Such as figure 1 , 3 As shown in and 4, the two-stage reduction drive brushless motor assembly of this embodiment includes:

[0026] The motor housing 1 includes a cylindrical housing 11 and a rear cover 12, one end of the housing 11 is open, and the opening is sealed by the rear cover 12, and the other of the housing 11 A through hole is provided in the middle of the side end surface;

[0027] The stator 2 is fixed on the inner circle of the motor housing 1. The stator 2 is made of a coil 21, and the coil 21 is arranged on the stator. The rotor adopts a coilless rotor, which solves the problem of energization during the rotation of the rotor. The technical problem can simplify the motor structure and improve the reliability and service life of the motor. The coil 21 is wound by anti-corona enameled wire, and the insulation level of the anti-corona enameled wire is equal to or higher than class H, which i...

Embodiment 2

[0035] Example 2 A brushless motor assembly with two-stage reduction transmission more stable

[0036] As a further improvement to the technical solution in Example 1, such as figure 2 As shown, the end of the power output shaft 4 provided with an output gear 41 is inserted into the cup opening of the hollow cup gear 6, and is the same as the hollow cup gear 6 through a bearing provided in the cup opening of the hollow cup gear 6 The shaft rotation is matched. Specifically, the cup mouth of the hollow cup-shaped gear 6 is machined with two stepped holes whose diameters decrease in order to the depths. The small-diameter stepped holes are used to install and fix the bearing 7 of the shaft end of the power output shaft 4. . The above-mentioned unique structural design enhances the stability of the meshing transmission between the hollow cup gear and the double intermediate gear, and the output gear and the double intermediate gear, avoiding the relative beating between the output ...

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Abstract

The invention discloses a secondary gearing-down brushless electric motor assembly. The secondary gearing-down brushless electric motor assembly comprises a motor casing, a stator fixed on an inner circle of the motor casing, a rotor concentrically arranged in the middle of the stator, a power output shaft coaxial with and matched with the motor casing in a rotary mode, an output gear concentrically and fixedly arranged at the end portion of the power output shaft, a duplicate intermediate gear rotatably arranged on the end face of one side of the motor casing and a hollow cup-shaped gear located on the same axial line with the power output shaft, wherein the output gear is meshed with a large gear on the duplicate intermediate gear, and a small gear on the duplicate intermediate gear is meshed with the hollow cup-shaped gear. A secondary reduction gear in a speed reducing box is creatively integrated into a brushless electric motor to form a large-torque drive motor, accordingly the gradeability of an electric motorcycle is improved, the energy consumption is reduced, and the service life of batteries are prolonged. In addition, an existing electric motorcycle structure is simplified greatly, and the manufacture and maintenance cost of the electric motorcycle is reduced.

Description

Technical field [0001] The invention relates to a drive motor, in particular to a brushless motor assembly suitable for electric motorcycles, which is integrated with a reducer and a brushless motor. Background technique [0002] At present, the drive motor of an electric motorcycle generally uses a brushed induction motor, which is mainly composed of stators, rotors and other components. Usually, the stator adopts a hub structure, and the rotor is integrated with the axle of the wheel. The drive motor adopting the above structure has the following disadvantages: 1) The rotor and the wheel shaft are integrated to directly drive the wheel to rotate, and the speed change is achieved by controlling the motor speed, forcing the motor to often be in a low-efficiency work area, resulting in increased energy consumption. And affect the battery life; 2) The rotor is wound by a coil structure, the continuous rotation of the rotor needs to be realized by brush parts, the structure is compl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K7/116F16H55/17
CPCY02T10/64
Inventor 楚浪
Owner SICHUAN ACNASS ELECTRIC VEHICLE