Unlock instant, AI-driven research and patent intelligence for your innovation.

electric equipment

A technology of electric equipment and electric power, applied in electric components, cutting equipment, gardening tools/equipment, etc., can solve the problems of insufficient noise countermeasures, motor radiation, etc., and achieve the effect of preventing damage and contact

Active Publication Date: 2020-07-14
MAKITA CORP
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, for example, in the case of electric equipment such as a hedge trimmer, since the saw-shaped long blade mechanically connected to the output shaft of the motor via a gear mechanism or the like is exposed from the case, there is noise generated by the motor or the like via the gear mechanism. Wait for the possibility of radiation from the jagged long knife
Therefore, merely passing the electric wires for feeding the motor through the cylindrical ferrite core as described above is not sufficient as a noise countermeasure.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • electric equipment
  • electric equipment
  • electric equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0037] Below, based on Figure 1 to Figure 9 , the electric device according to Embodiment 1 of the present invention will be described. The electric equipment of this embodiment is a battery-type hedge trimmer used for cutting hedges. Here, the front, rear, left, and right, and up and down shown in the figure correspond to the front, back, left, and right, and up and down of the hedge trimmer.

[0038] Summary of Hedge Trimmer 10

[0039] Such as figure 1 , figure 2 As shown, the hedge trimmer 10 is an electric device that reciprocates the vertical long blades 37 and 38 back and forth by a drive unit such as a motor 20 to trim branches and leaves such as a hedge. The hedge trimmer is provided with a housing 12 configured to accommodate drive units such as a motor 20 and capable of being held and operated by a user. The casing 12 is a split-type casing configured by aligning and connecting left and right casing members (reference numerals are omitted) at the center. Suc...

Embodiment approach 2

[0059] Below, based on Figure 10 , Figure 11 An electric device according to Embodiment 2 of the present invention will be described. The electric device of the present embodiment is a battery-type concrete vibrator 60 for vibrating concrete after the concrete has flowed into a mold. The concrete vibrator 60 includes a housing 61 , and a housing main body portion 61 m in which the motor 20 is housed is provided at a front portion of the housing 61 . In addition, at the rear end position of the housing 61, a handle portion 61g is provided in the longitudinal direction, and an operation switch 62 is provided on the upper portion of the handle portion 61g, and the trigger 62t is in a state protruding forward. Further, a battery storage portion 61b for housing the battery 19 is provided on the lower side of the casing 61 .

[0060] Such as Figure 10As shown, in the case main body 61m, an opening (reference numeral omitted) used for housing the motor 20 and the like is forme...

Embodiment approach 3

[0066] Below, based on Figure 12 to Figure 14 , an electric device according to Embodiment 3 of the present invention will be described. The electric equipment of this embodiment is a desktop circular saw machine 80 . Such as Figure 12 As shown, a desktop circular saw machine 80 is composed of a circular saw main body 82 , a base bracket 84 supporting the circular saw main body 82 , and connecting mechanisms 87 and 88 for connecting the circular saw main body 82 and the base bracket 84 . constitute. Circular saw main body 82 includes housing 81 housing a motor or the like as a driving source, and main body bracket 82m connected to housing 81 to support the motor, gear mechanism, and bearings of disc-shaped cutting blade 82s. In addition, the base frame 84 includes: a base main body 85b; a table 85t configured to be horizontally rotatable with respect to the base main body 85b; and a left-right tilting mechanism 86 provided at a rear end position of the table 85t. Further...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An object of the invention is to provide an electrical apparatus capable of inhibiting noise radiation resulting from an exposed member exposed from a housing. The electrical apparatus comprises a motor (20), a housing (12) receiving an electrical line through which electrical power is supplied to the motor (20), conductive exposed members (37, 38) which are arranged partially outside the housing (12) and are mechanically connected to an output shaft (21) of the motor (20), and ferrite cores (51, 52). The ferrite cores (51,52) are arranged to not touch an intermediate portion of the exposed members extending from the motor (20) to the exposed ends of the exposed members (37,38). The ferrite cores (51, 52) are arranged in the vicinity of the intermediate portion.

Description

technical field [0001] The present invention relates to noise countermeasures for electric equipment using ferrite cores. Background technique [0002] Patent Document 1 describes a technique related to noise countermeasures of a motor using a ferrite core. In the motor described in Patent Document 1, noise radiation is suppressed by passing electric wires for supplying power to a pair of carbon brushes in sliding contact with the commutator to a cylindrical ferrite core. Therefore, by using such a noise-measured motor in electric equipment such as electric tools, noise radiation from the electric equipment can be suppressed to a certain extent. [0003] Patent Document 1: Japanese Patent Laid-Open No. 2012-70512 [0004] However, for example, in the case of electric equipment such as a hedge trimmer, since the saw-shaped long blade mechanically connected to the output shaft of the motor via a gear mechanism or the like is exposed from the case, there is noise generated by...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H02K13/00H02K11/026H02K23/66
CPCH02K11/026H02K13/00H02K23/66A01G3/053H02K7/116H02K7/145H02K11/0141
Inventor 中野富士雄神谷真吾镰田真贵
Owner MAKITA CORP