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Power-supply cord arrangement structure

A technology for power cords and electrical equipment, which is applied to the circuit layout of supporting structures, electrical equipment shells/cabinets/drawers, circuits, etc., which can solve problems such as metal fatigue and accelerated power cord degradation time, so as to prolong the service life and improve Convenience, effect of delaying deterioration time

Inactive Publication Date: 2012-05-16
MAKITA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, metal fatigue will be caused due to the concentration of the point of application of the load, and the deterioration time of the power cord will be accelerated.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0040] Hereinafter, a first embodiment of an arrangement structure of a power cord included in an electric device according to the present invention will be described with reference to the drawings. In addition, in the arrangement|positioning structure S1 of the power cord of embodiment demonstrated below, the charger is shown as an example and demonstrated as an electric device equipped with a power cord. figure 1 The appearance of this charger 10 as an electric device is shown in a perspective view. In addition, in the following description, the direction of "up, down, front, back, left, and right" is specified based on the assembly direction of the battery pack B as shown in the illustration. That is, in the charger 10 , the mounting side of the battery pack B is defined as the upper side, and the direction in which the battery pack B is slid when the battery pack B is mounted is defined as the front side. in addition, figure 1 The illustrated battery pack B is configured...

no. 2 approach

[0074] The arrangement structure S1 forming the power supply line 50 of the above-mentioned first embodiment may also be configured as the following second embodiment. In addition, in the arrangement structure S2 forming the power supply line 50 of the second embodiment described below, the parts configured in the same manner as those forming the arrangement structure S1 of the power supply line 50 of the first embodiment described above are assigned the same reference numerals. Description omitted.

[0075] Figure 7 It is a schematic schematic diagram showing the second embodiment for comparison with the lead-out hole 30 of the first embodiment described above. In addition, in Figure 7 In the drawing, in order to show the action point of the pulling load in the power cord 50 , the lead-out hole main body 31A (lead-out hole 30A) and the power cord 50 are schematically simplified and shown.

[0076] which is, Figure 7 The upper left figure of ] is a diagram of a state wh...

no. 3 approach

[0080] The arrangement structure S1 forming the power line 50 of the above-mentioned first embodiment may also constitute the following third embodiment. In addition, in the arrangement structure S3 forming the power supply line 50 of the third embodiment described below, the parts configured in the same manner as those forming the arrangement structure S1 of the power supply line 50 of the first embodiment described above are assigned the same reference numerals. Description omitted.

[0081] Figure 8 It is a schematic diagram showing a third embodiment for comparison with the extraction hole 30 of the first embodiment described above. In addition, in Figure 8 In the drawing, in order to show the action point of the pulling load on the power cord 50 , the lead-out hole main body 31B (lead-out hole 30B) and the power cord 50 are schematically simplified and shown.

[0082] which is, Figure 8 The upper left figure of ] is a diagram showing a case where the power cord 50 ...

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PUM

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Abstract

The invention relates to a power-supply cord arrangement structure. When the power-supply cord is bent towards multiple directions with a core drawing hole equipped in a housing of an electrical equipment as a support point, the power-supply cord deterioration due to the bending is delayeed and the power-supply cord is enabled to have a long service lifetime.A front support portion (351) and a back support portion (352) can be oppositely asymmetrically formed in the front-back direction with the guide center line (C) of the power-supply cord (50)as the symmetrical center. A front inner guide portion (surface) (431) and a back inner guide portion (surface) (432) are positioned opposite to each other in the front-back direction also with the guide center line (C) of the power-supply cord (50)as the symmetrical center.When the power-supply core (50) is pulled forwardly or backwardly, the rection force corresponding to the tensile load applied to the power-supply cord (50) can be recieved by a plurality of actions points,namely, a first action point (T1), a second action point (T2), a thir action point (T3) and a fourth action point (T4). The reaction force is then prevented from being concentrated in a single action point. Therefore, the metal fatigue of the power-supply cord (50)is prevented.

Description

technical field [0001] The present invention relates to an arrangement structure of a power cord included in electrical equipment such as a charger. Background technique [0002] Conventionally, electrical equipment such as a charger is known to be connected to an external power outlet such as a household power supply to supply electric power. Such electric equipment is configured to include a power cord (also referred to as an electric cord) for feeding power to be connected to an external power outlet. The power cord is arranged so as to be drawn from the inside of the housing to the outside of the housing. Therefore, a lead-out hole for leading a power cord from the inside of the housing to the outside of the housing is provided in a housing case constituting such a housing (for example, refer to Patent Document 1). The lead-out hole for the power cord disclosed in this patent document 1 is provided so as to pass only through the side wall portion of the housing case. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K5/02H05K7/02
CPCH01R13/5833H05K5/0247
Inventor 酒井守小仓裕纪大岛一马
Owner MAKITA CORP
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