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Electric tool

A technology for electric tools and circuit boards, applied in the field of power tools, can solve the problems of large size of electric tools, and achieve the effects of convenient use and transportation, reduced volume, and reduced occupied space.

Pending Publication Date: 2020-12-15
NANJING CHERVON IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an electric tool to solve the technical problem of large volume of electric tools in the prior art

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] see Figure 1 to Figure 4 , The present invention provides an electric tool, which may be an angle grinder, a sander, a polishing machine, an oscillating tool, etc., and is not limited here. The electric tool includes a housing 1, a motor 2 located in the housing 1, and a reduction mechanism 3 connected to the output shaft of the motor 2. Of course, it also includes a working head connected to the reduction mechanism 3, and the working head is installed on the output shaft of the reduction mechanism 3. , the motor 2 drives the working head to move through the reduction mechanism 3 .

[0038] The shell 1 is in the shape of a straight cylinder and includes a head shell 11 , a handle 12 and a tail shell 13 connected in sequence. The casing 1 does not adopt the T-shaped structure commonly used in the prior art, which reduces the occupied space and is convenient for use and transportation. The motor 2 is located in the grip part 12, the reduction mechanism 3 is located in ...

Embodiment 2

[0048] Figure 5 Embodiment 2 is shown, in which components identical or corresponding to those in Embodiment 1 are identified with reference numerals corresponding to Embodiment 1. For simplicity, only the differences between Embodiment 2 and Embodiment 1 are described. The difference is that an air guide cover 8 is sheathed outside the motor 2 , the air guide cover 8 is fixedly connected with the housing 1 , and the air guide cover 8 and the motor 2 are spaced apart. The wind guide cover 8 can not only guide the airflow generated by the axial flow fan 26 to the air outlet 121, but also aggregate the outwardly divergent airflow generated by the centrifugal fan 25, so that the airflow flows through the outer surface of the motor 2 to take away heat from the air outlet 121 flow out. The connection mode between the air guide cover 8 and the housing 1 may be clip connection or screw connection, which is not limited here. The air guide cover 8 and the motor 2 are spaced apart, be...

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PUM

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Abstract

The invention discloses an electric tool, and belongs to the technical field of power tools. The electric tool comprises a shell, a motor located in the shell and a speed reducing mechanism connectedwith a rotating shaft of the motor, wherein the shell is in a straight cylinder shape and comprises a head shell body, a holding part and a tail shell body which are sequentially connected, the speedreducing mechanism is positioned in the head shell body, the motor is located in the holding part, the rotating shaft of the motor is perpendicular to an output shaft of the speed reducing mechanism,the motor is an outer rotor motor, and an output line of the motor is located between the motor and the speed reducing mechanism. According to the electric tool, the shell does not adopt a common T-shaped structure in the prior art, so that the occupied space is reduced, and the use and transportation are convenient; the adopted motor is the outer rotor motor, so that a small space is occupied, arelatively large torque is provided and the overall size of the electric tool is reduced; and the output line is located between the motor and the speed reducing mechanism, so that the space is fullyutilized, the size of the shell of the electric tool is reduced, and the use and transportation are relatively convenient.

Description

technical field [0001] The invention relates to the technical field of power tools, in particular to an electric tool. Background technique [0002] Common power tools include: screwdrivers, drills, electric hammers, sanders, reciprocating saws, jigsaws, circular saws, etc. Power tools powered by electricity are often referred to as power tools. [0003] In electric tools, a motor is generally used as a driving mechanism, and the power is transmitted to the working head through a reduction mechanism. The motor generally adopts an inner rotor motor, which takes up a large space, makes the power tool larger in size and weight, and causes a lot of inconvenience to use and transportation. In addition, regardless of whether direct current or alternating current is used, the motor needs to be connected to the power supply by wires, and the layout of the wires does not fully consider the space inside the power tool, making the shell of the power tool larger. Contents of the inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25F5/02B25F5/00
CPCB25F5/02B25F5/001
Inventor 吹拔正敏童国明赵祥
Owner NANJING CHERVON IND