Interchange structure for different motors on same casing

Abstract

The invention provides an interchange structure for different motors on the same casing. The interchange structure comprises a tool casing; a transmission mechanism component, a middle cover and an old motor are all arranged in the tool casing; the old motor is fixed on the middle cover; a transmission shaft of the old motor passes through the middle cover and is connected with the transmission mechanism component; an air inlet and an air outlet are formed in the tool casing; the external diameter of a new motor is smaller than the external diameter of the old motor; when the old motor is replaced with the new motor, the old motor is dismounted, and the new motor is fixed on the middle cover; a fan cover is arranged on the outer side of the new motor, and the external diameter is the same as that of the old motor; a combined type blade is arranged at one end, close to the air inlet, of the new motor. The invention realizes the interchange of different motors on the same casing by changing the external diameter of the motor and optimizing the flow direction of a wind path, and can realize rapid productization of an electric tool employing the new motor, thereby shortening the new product development period and saving the project investment cost.

Description

technical field [0001] The invention relates to the installation structure of the motor in the casing of the electric tool, in particular to the installation structure of different motors in the same casing. Background technique [0002] Electric tools are mainly composed of transmission parts, connection parts, motors, casings, wires, switches, etc. Most of the motors used before were series-excited motors or steel pipe motors. With the improvement of motor technology and technology, more and more products began to use integral standard motors or even brushless motors. [0003] Most of the traditional power tool products adopt the form of a casing with a type of appearance and a type of motor. Due to the different sizes and air paths of different types of motors, different motors cannot be used in common on one casing, and a new casing that is suitable for the new type of motor needs to be configured, which undoubtedly increases the cost of launching new products and also ...

AI Technical Summary

Problems solved by technology

Due to the different sizes and air paths of different types of motors, different motors cannot be used in common on one casing, and a new casing that is suitable for the new type of motor needs to be configured, which undoubtedly increases the cost of launching new products and also increases the cost of new products. Extended development cycle

Images