Electric leakage prevention mechanical structure of electric tool

A technology of electric tools and motor structures, applied in electric components, electrical components, electromechanical devices, etc., can solve problems such as hidden safety hazards and electric tools leakage, and achieve extended service life, good mechanical strength and insulation performance, and avoid rapid aging. Effect

Inactive Publication Date: 2015-03-25
CHENGDU ZHONGYUANXIN ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is: electric leakage may

Method used

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  • Electric leakage prevention mechanical structure of electric tool
  • Electric leakage prevention mechanical structure of electric tool

Examples

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Example Embodiment

[0022] See figure 1 , Shows the leakage-proof motor structure of the electric tool of the present invention.

[0023] The leak-proof motor structure 3 is arranged between the housing 41 and the motor 42 of the electric tool 4. The inner surface 411 of the housing 41 is provided with a plurality of locking portions 412, and each locking portion 412 is provided with The screw hole 413 fixed to the leak-proof motor structure 4, the motor 42 has a stator 421 assembled on the inner side of the leak-proof motor structure 3 and arranged in the housing 41 along the axis II and having a plurality of coils 422 , And a rotor 423 that rotates relative to the stator 421.

[0024] The leakage-proof motor structure 3 includes a sheath unit 31 provided between the housing 41 and the motor 42, and a connecting unit 32 that couples the sheath unit 31 to the stator 421 and the housing 41.

[0025] The sheath unit 31 is made of insulating material (for example, phenolic plastic), and includes a first s...

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Abstract

An electric leakage prevention mechanical structure of an electric tool is arranged between a shell of the electric tool and a motor. The electric leakage prevention mechanical structure comprises a jacket unit arranged between the shell and the motor, and a connecting unit combining the jacket unit to the part between a stator and the shell. The jacket unit comprises a first jacket and a second jacket which isolate the stator and the shell along the axis. The first jacket comprises a first body, the second jacket comprises a second body, a plurality of first grooves extending in the axial direction are formed in the outer surface of the first body, a plurality of second grooves extending in the axial direction are formed in the outer surface of the second body, and a cooling fan is fixed to the back end of a rotor. The stator and the shell are isolated through the jackets, electric leakage caused when metal filling or oil drops in air enter the tool is avoided, the function of electric leakage prevention is provided, and fast cooling is achieved through the grooves in the surfaces of the jackets.

Description

technical field [0001] The invention relates to a leak-proof motor structure of an electric tool. Background technique [0002] With the improvement of people's life, the pursuit of quality of life is getting higher and higher. Many people like to assemble or set up furniture by themselves. [0003] Therefore, people need power tools to realize their own design and assembly. [0004] However, electric leakage may occur when the existing electric tools are driven, which may lead to potential safety hazards. [0005] Therefore, in view of the above-mentioned defects, the designer of the present invention researches and designs a leak-proof motor structure of an electric tool to overcome the above-mentioned defects through painstaking research and design, and comprehensive experience and achievements in related industries for many years. Contents of the invention [0006] The technical problem to be solved by the present invention is: electric leakage may occur when the exi...

Claims

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Application Information

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IPC IPC(8): H02K5/10H02K5/22H02K5/08
CPCH02K5/10H02K5/08H02K5/22
Inventor 龙宁
Owner CHENGDU ZHONGYUANXIN ELECTRONICS TECH
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