JP2007120863A - Arrangement structure of electric wire and refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an arrangement structure of electric wires capable of preventing generation of noise, simplifying work for withstand voltage, and reducing costs. <P>SOLUTION: The electric wiring 2 is disposed in a refrigerator main body 1. The electric wiring 2 has a DC wire 21 and an AC wire 22. The DC wire 21 and the AC wire 22 are arranged in a state of separating from each other so that they are not kept into contact with each other. Thus the noise caused by the contact of the DC wire 21 and the AC wire 22 can be prevented. In a case of being used under high pressure power source, only the AC wire 22 is coated with a withstand voltage insulating tube 25. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an electric wiring arrangement structure and a refrigerator provided with the electric wiring arrangement structure.

  Conventionally, as an example of an electric appliance, as shown in a rear view of FIG. 4, there is a refrigerator provided with a refrigerator main body 101 and an electric wiring 102 arranged in the internal space of the refrigerator main body 101 (actually open flat). 4-117373 gazette: refer to patent documents 1).

  The electrical wiring 102 connects, for example, electrical components such as a fan motor, a door switch, and a temperature sensor (not shown) and a control circuit (not shown). The electrical wiring 102 has a DC line 121 through which a direct current flows and an AC line 122 through which an alternating current flows.

  And as the arrangement structure of this electric wiring 102, the said DC line 121 and the said AC line 122 were put together in the internal space of the said refrigerator main body 101 so that it might mutually contact.

  However, in the conventional arrangement structure of the electrical wiring, the DC line 121 and the AC line 122 are in contact with each other, so that noise caused by the contact between the DC line 121 and the AC line 122 is generated. It was.

Further, when this refrigerator is used under a high-voltage power source, both the DC line 121 and the AC line 122 have to cope with a withstand voltage under the high-voltage power source. That is, both the DC line 121 and the AC line 122 are covered with the pressure-resistant insulating tube 125, so that the work for pressure resistance takes time and cost increases.
Japanese Utility Model Publication No. 4-117373 (FIG. 1)

  SUMMARY OF THE INVENTION An object of the present invention is to provide an electric wiring arrangement structure that can prevent noise from being generated, simplify work for handling withstand voltage, and reduce costs.

In order to solve the above problems, the electrical wiring arrangement structure of the present invention is:
An electric device main body having an outer box and an inner box and forming a space between the outer box and the inner box;
Electrical wiring arranged in the space of the electrical equipment body,
The electrical wiring has a DC line through which a direct current flows and an AC line through which an alternating current flows.
The DC line and the AC line are arranged so as to be separated from each other and not in contact with each other.

  According to the arrangement structure of the electric wiring of the present invention, the DC line and the AC line are arranged so as not to be in contact with each other, so that noise caused by contact between the DC line and the AC line is caused. No longer occurs. In addition, when an electric device having the above electric wiring is used under a high voltage power source, the withstand voltage under the high voltage power source can be dealt with only by the AC line, simplifying the work for withstand voltage, and cost. Can be reduced.

  Further, in the electric wiring arrangement structure of one embodiment, the outer box has a DC line dedicated hole and an AC line dedicated hole separated from each other, and the DC line is connected to the DC line dedicated hole, On the other hand, the AC line is drawn to the outside of the outer box from the AC line dedicated hole while being drawn to the outside of the outer box.

  According to the electrical wiring arrangement structure of this embodiment, the outer box has the DC wire dedicated hole and the AC line dedicated hole, and the DC line is connected to the outer line from the DC line dedicated hole. While being drawn out of the box, the AC line is drawn out of the outer box from the AC line dedicated hole, so that the contact between the DC line and the AC line can be reliably prevented. In addition, the DC line and the AC line drawn out to the outside of the outer box can be reliably distinguished, and erroneous wiring with electrical components can be prevented.

  Further, in the electrical wiring arrangement structure of one embodiment, the inner box has a DC line dedicated hole and an AC line dedicated hole that are separated from each other, and the DC line extends from the DC line dedicated hole, On the other hand, the AC line is drawn to the inside of the inner box from the hole dedicated to the AC line.

  According to the electric wiring arrangement structure of this embodiment, the inner box has the DC line dedicated hole and the AC line dedicated hole, and the DC line extends from the DC line dedicated hole to the inner line. On the other hand, since the AC line is drawn to the inside of the inner box from the AC line dedicated hole, the contact between the DC line and the AC line can be reliably prevented. In addition, the DC line and the AC line drawn out to the inside of the inner box can be reliably distinguished, and erroneous wiring with electrical parts can be prevented.

  In the electrical wiring arrangement structure of one embodiment, the electrical wiring is connected to a high-voltage power supply.

  Here, the high-voltage power supply means a power supply having a rated voltage of 200V, for example.

  According to the arrangement structure of the electrical wiring of this embodiment, the electrical wiring is connected to a high-voltage power supply, so that the withstand voltage under the high-voltage power supply can be handled only with the AC line, and the withstand voltage The work can be simplified and the cost can be reduced.

  Moreover, the refrigerator of this invention is provided with the arrangement structure of the said electrical wiring.

  According to the refrigerator of the present invention, since the electric wiring arrangement structure is provided, the generation of noise can be prevented and the manufacturing process and the manufacturing cost can be reduced.

  According to the electric wiring arrangement structure of the present invention, since the DC line and the AC line are arranged so as not to be in contact with each other, the generation of noise is prevented and the work for handling withstand voltage is simplified. In addition, cost can be reduced.

  Further, according to the refrigerator of the present invention, since the electric wiring arrangement structure is provided, it is possible to prevent the generation of noise and reduce the manufacturing process and the manufacturing cost.

  Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.

  FIG. 1: has shown the front view of a refrigerator provided with the arrangement structure of the electrical wiring of this invention. FIG. 2 is a cross-sectional view taken along line AA in FIG. 1, and FIG. 3 is a rear view of the refrigerator.

  As shown in FIGS. 1, 2, and 3, this refrigerator includes a refrigerator main body 1 as an example of an electric device main body, and upper and lower doors 3 and 3 attached to upper and lower openings of the refrigerator main body 1.

  The refrigerator main body 1 has an outer box 11 and an inner box 12 arranged in the outer box 11. A space 13 is formed between the outer box 11 and the inner box 12.

  The outer box 11 is made of, for example, a metal plate and has one opening on the front surface. The inner box 12 is made of resin, for example, and has two upper and lower openings on the front surface. The space 13 is filled with a heat insulating material 14. This heat insulating material 14 consists of hard urethane foam, for example.

  In the space 13, the electrical wiring 2 is arranged. For example, the electrical wiring 2 connects electrical components such as a fan motor, a door switch, and a temperature sensor (not shown) and a control circuit (not shown).

  The electrical wiring 2 has a DC line 21 through which a direct current flows and an AC line 22 through which an alternating current flows. Each of the DC line 21 and the AC line 22 includes a conductor and an insulator covering the conductor. The DC line 21 and the AC line 22 are drawn from the space 13 to the outside of the outer box 11 and the inside of the inner box 12.

  The DC line 21 and the AC line 22 are arranged so as not to be in contact with each other. The DC lines 21 and the AC lines 22 arranged in this way constitute an electric wiring arrangement structure.

  More specifically, the outer box 11 has a DC wire dedicated hole portion 11a and an AC wire dedicated hole portion 11b separated from each other, and the DC wire 21 is connected to the outer periphery of the DC wire dedicated hole portion 11a. On the other hand, the AC line 22 is pulled out to the outside of the outer box 11 from the AC line dedicated hole 11b.

  The inner box 12 has a DC line dedicated hole 12a and an AC line dedicated hole 12b separated from each other, and the DC line 21 is connected to the inner side of the inner box 12 from the DC line dedicated hole 12a. On the other hand, the AC wire 22 is drawn inside the inner box 12 from the AC wire dedicated hole 12b.

  A DC connector 23 is attached to the terminal of the DC line 21. That is, the DC connector 23 is disposed on the outer side of the outer box 11 and the inner side of the inner box 12.

  An AC connector 24 is attached to the terminal of the AC line 22. That is, the AC connector 24 is disposed on the outer side of the outer box 11 and the inner side of the inner box 12.

  In the space 13, the DC line 21 and the AC line 22 are arranged separately so as not to cross each other. The DC line 21 is generally disposed on the left and right sides of the refrigerator body 1, and the AC line 22 is generally disposed on the left and right sides of the refrigerator body 1.

  More specifically, the DC wire 21 has a main portion 21a extending in the vertical direction of the refrigerator body 1 and a branch portion 21b extending from the main portion 21a in the left-right direction and the front-rear direction. The AC line 22 has a main portion 22a extending in the up-down direction of the refrigerator body 1 and a branch portion 22b extending from the main portion 22a in the left-right direction and the front-rear direction. And the main part 21a of the said DC wire 21 is arrange | positioned at the left-right one side of the said refrigerator main body 1, On the other hand, the main part 22a of the said AC wire 22 is arrange | positioned at the right-and-left other side of the said refrigerator main body 1.

  The AC wire 22 in the space 13 is covered with a pressure-resistant insulating tube 25. When the electrical wiring 2 is connected to a high voltage power source, the insulating tube 25 has a withstand voltage against the AC line 22. That is, it is considered that this refrigerator is exported to a high-voltage power source area with a rated voltage of 200 V or the like and used under this high-voltage power source.

  The DC line 21 is connected to a transformer (not shown). Therefore, the refrigerator can be used safely even under a high voltage power source.

  A sealing material 26 is attached to the DC wire dedicated holes 11a and 12a and the AC line dedicated holes 11b and 12b so as to fill a gap between the DC wire 21 and the AC wire 22. The sealing material 26 prevents the heat insulating material 14 from leaking to the outside of the outer box 11 or the inner box 12 when the space 13 is filled with the heat insulating material 14.

  According to the arrangement structure of the electrical wiring of the above configuration, the DC line 21 and the AC line 22 are arranged so as not to contact each other separately, so that the DC line 21 and the AC line 22 are not in contact with each other. The cause of noise is eliminated.

  Further, when the refrigerator is used under a high voltage power source, the voltage resistance under the high voltage power source can be handled only by the AC line 22. That is, the insulating tube 25 only needs to cover the AC wire 22. Therefore, it is possible to simplify the work corresponding to the pressure resistance and reduce the cost.

  The outer box 11 has the DC line dedicated hole 11a and the AC line dedicated hole 11b, and the DC line 21 is drawn out of the outer box 11 from the DC line dedicated hole 11a. On the other hand, since the AC line 22 is pulled out from the AC line dedicated hole 11b to the outside of the outer box 11, the contact between the DC line 21 and the AC line 22 can be reliably prevented. In addition, the DC line 21 and the AC line 22 drawn to the outside of the outer box 11 can be reliably distinguished, and erroneous wiring with electrical components can be prevented.

  The inner box 12 has the DC line dedicated hole 12a and the AC line dedicated hole 12b, and the DC line 21 is led out from the DC line dedicated hole 12a to the inside of the inner box 12. On the other hand, since the AC line 22 is pulled out from the AC line dedicated hole 12b to the inside of the inner box 12, the contact between the DC line 21 and the AC line 22 can be reliably prevented. In addition, the DC line 21 and the AC line 22 drawn out to the inside of the inner box 12 can be reliably distinguished, and erroneous wiring with electrical components can be prevented.

  In addition, since the electric wiring 2 is connected to a high voltage power source, it is only necessary to deal with the withstand voltage under the high voltage power source by dealing with the AC line 22, simplifying the work for dealing with the withstand voltage, and reducing the cost. Reduction can be achieved.

  Moreover, according to the refrigerator having the above-described configuration, since the electric wiring arrangement structure is provided, the generation of noise can be prevented and the manufacturing process and the manufacturing cost can be reduced.

  In addition, this invention is not limited to the above-mentioned embodiment. For example, the DC line 21 and the AC line 22 are simultaneously inserted into the outer box 11 and the inner box 12 instead of the DC line dedicated holes 11a and 12a and the AC line dedicated holes 11b and 12b. Alternatively, a hole may be provided so that the DC wire 21 and the AC wire 22 do not contact each other. Moreover, you may use the arrangement structure of the said electrical wiring for household electric appliances, such as a microwave oven, a washing machine, and a vacuum cleaner other than a refrigerator.

It is a front view of a refrigerator provided with the arrangement structure of the electrical wiring of the present invention. It is AA sectional drawing of FIG. It is a rear view of FIG. It is a rear view of a refrigerator provided with the arrangement structure of the conventional electrical wiring.

Explanation of symbols

1 Refrigerator body (electric equipment body)
DESCRIPTION OF SYMBOLS 11 Outer box 11a DC wire exclusive hole 11b AC line exclusive hole 12 Inner box 12a DC line exclusive hole 12b AC line exclusive hole 13 Space 14 Heat insulating material 2 Electrical wiring 21 DC line 21a Main part 21b Branch part 22 AC line 22a Main part 22b Branch part 23 DC connector 24 AC connector 25 Insulating tube 26 Sealing material

Claims (5)

An electric device main body having an outer box and an inner box and forming a space between the outer box and the inner box;
Electrical wiring arranged in the space of the electrical equipment body,
The electrical wiring has a DC line through which a direct current flows and an AC line through which an alternating current flows.
An arrangement structure of electrical wiring, wherein the DC line and the AC line are arranged so as not to contact each other separately. In the arrangement structure of the electrical wiring according to claim 1,
The outer box has a DC wire dedicated hole and an AC line dedicated hole separated from each other,
While the DC wire is drawn out from the DC wire dedicated hole to the outside of the outer box,
The AC wire is drawn out from the AC wire dedicated hole to the outside of the outer box. In the arrangement structure of the electrical wiring according to claim 1,
The inner box has a DC wire dedicated hole and an AC line dedicated hole separated from each other,
While the DC wire is drawn out from the DC wire dedicated hole to the inside of the inner box,
An arrangement structure of electrical wiring, wherein the AC line is led out from the AC line dedicated hole to the inside of the inner box. In the arrangement structure of the electrical wiring according to claim 1,
The electrical wiring is connected to a high voltage power source, and the electrical wiring is arranged.   A refrigerator comprising the electric wiring arrangement structure according to any one of claims 1 to 4.

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