JPH09199270A - Wiring structure for electrified product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attain efficiency of wiring work in the case that wiring is left as performed of a wire previously in a side plate serving partly as a body of equipment. SOLUTION: A plurality of wire holding fixtures 13 and end holding fixtures 15 are vertically provided on a side plate 11, a plurality of holding grooves are formed in an axial direction in this wire holding fixture 13. A bending part of a wire 12 is fitted into this holding groove to be held. A plurality of mounting grooves 15a are formed in an axial direction in the end holding fixture 15, here, the wire 12, winding its end, is held. In this way, a plurality of the wires 12 are three-dimensionally arranged relating to the side plate 11, so that a length of the wire 12 arranged in the same route can be all made equal, and in the bending part of each wire 12, its bending position and shape can be made all equal, consequently, wiring work of the wire 12 can be efficiently performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for wiring devices in appliances.

[0002]

2. Description of the Related Art For example, various electric parts such as a fan and a transformer are housed inside a home electric appliance such as a microwave oven. These are to be wired separately from the control circuit board, but the wiring process is performed after fixing the fan and the like to the housing of the electric appliance, and in the past, an operator manually connects the electric wire A between each component. The result of wiring in the work was in the state shown in FIG.

[0003]

However, if the individual wiring is manually performed as in the above structure, it takes time to perform the work, and the improvement of the production efficiency in the assembling process of electric appliances cannot be expected at all. Therefore, it is possible to reduce the work load in the assembly process by arranging the wires on the side plate that forms a part of the housing in advance before assembling the electric parts. If the cable is installed in a plane, the following problems will occur. For example, if a plurality of electric wires B wired in parallel are bent as shown in FIG. 10, an electric wire B wired inside and an electric wire B wired outside.
Then, the bending position is different. Further, if a plurality of electric wires B are bent as shown in FIG. 11, the shape (curvature radius) of the bent portion will be different for each electric wire B, and a plurality of types of bending jigs must be prepared. Therefore, if the electric wires are arranged in parallel along the side plate, each electric wire must be individually bent according to the wiring pattern, so that the work efficiency in the wiring becomes low.

The present invention has been made in view of the above circumstances, and an object thereof is to improve the efficiency of the wiring work when wires are previously wired to the side plates forming a part of the housing. The purpose is to provide a wiring structure for electrical appliances.

[0005]

In order to achieve the above object, the invention of claim 1 is a structure for individually wiring each electric component incorporated in a housing of an electric appliance by an independent electric wire. A holder is provided upright on the side plate that constitutes at least a part of the housing, and the electric wire is preliminarily three-dimensional in the vertical direction with respect to the side plate before electrical connection is made to each electric component. It is characterized by being installed.

The invention according to claim 2 is characterized in that a plurality of holding grooves for holding the electric wires are formed in the holder along the height direction. Furthermore, the invention of claim 3 is characterized in that the holding groove is formed along the circumferential direction of the holder.

[0007]

As described above, according to the first aspect of the present invention, since the electric wires are preliminarily installed on the side plates, at least the steps required for the installation are reduced as compared with the conventional assembly process of electric parts. It can be shortened. Moreover, since the electric wires are arranged in the vertical direction with respect to the side plate so as to be three-dimensional, the lengths of the electric wires wired in the same path can be made equal. Furthermore, the bending position and shape of all the electric wires can be the same. Therefore, it is not necessary to individually perform the cutting work and the bending work of the electric wire, and a plurality of wires can be bent at the same time, so that the efficiency of the wiring work of the electric wire can be improved.

Further, according to the second aspect of the invention, since each electric wire is held in the holding groove, the holding position does not deviate. Therefore, each electric wire can be stably held. Further, according to the invention of claim 3, since the holding groove is formed along the circumferential direction of the holder, the electric wire can be bent along this. Therefore, the bent wiring is easy and the bent portion is held, so that the electric wire can be held efficiently.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIGS. The present embodiment will be described by taking as an example a component used as one component of a home electric appliance such as a microwave oven. As shown in FIG. 1, a side plate 11 that constitutes a part of the housing of the microwave oven.
And a plurality of electric wires 12 for connecting a plurality of types of electric parts (fans, transformers, etc.) incorporated in the microwave oven, and an electric wire holder 13 for holding the electric wires 12 on the side plate 11. It is equipped with. An enamel wire is used as the electric wire 12.

The side plate 11 is formed of a rectangular steel plate, which constitutes the bottom plate portion of the housing. A column-shaped electric wire holder 13 made of a cured resin material is erected at a plurality of predetermined positions of the side plate 11. As shown in FIG. 2, a plurality of holding grooves 13a are formed on the peripheral side surface of each wire holder 13 along the axial direction. Each holding groove 13a is formed by cutting out the peripheral side surface of the wire holder 13 in a U-shaped cross section over the entire circumference, and its opening width is formed to be slightly wider than the wire diameter of the wire 12. , The electric wire 12 in the holding groove 13a as shown in FIG.
The bent portion of the can be accommodated. Further, the lower end of the wire holder 13 has a rectangular shape over the entire circumference to form a protruding portion 13b, so that the wire holder 13 can be stably erected on the side plate 11. . Further, the lower surface of the wire holder 13 has a screw hole 13
c is formed, and the through hole 1 formed on the side plate 11
4, the mounting screw 17 can be tightened from the lower surface side of the side plate 11 through the through hole 14 here. As a result, each wire holder 13 is fixed at a predetermined position on the side plate 11.

Further, on the side plate 11, terminal holding members 15 are provided upright corresponding to the positions where the electric parts are assembled. Like the wire holder 13, the terminal holder 15 is also made of a hardened resin material and is formed in a columnar shape. Then, as shown in FIG. 4, a plurality of mounting grooves 15a, which are notched and formed in a U-shaped cross section, are formed on the peripheral side surface along the axial direction. The opening width of each mounting groove 15a is slightly wider than the wire diameter of the electric wire 12, and the depth dimension is formed shallower than the wire diameter of the electric wire 12.
A part of the electric wire 12 is projected while the wire 2 is housed here. Further, the mounting groove 15a is plated with a conductive material so that the end of the electric wire 12 from which the enamel is peeled off is wound around here and then fixed by soldering. When the electric component is assembled on the side plate 11, the terminal fitting 18 of the electric component comes into contact with the end of the electric wire 12 bulging from the mounting groove 15a to bring the electric component and the electric wire 12 into conduction. On the other hand, like the wire holder 13, the lower end of the terminal holder 15 has a rectangular shape over the entire circumference to form an overhanging portion 15b, so that the terminal holder 15 can be stably erected on the side plate 11. ing. Further, like the wire holder 13, the terminal holder 15 is fixed to the lower end of the terminal holder 15 by tightening a mounting screw 16 from the lower surface side of the side plate 11.

Next, the operation of the present embodiment will be described.
Before assembling each electric component in the housing, the electric wire 12 is routed to the side plate 11 forming a part of the housing to assemble the panel with wiring in advance. The process is performed as follows. First, the electric wire 12 is cut into a predetermined length in accordance with the mounting position of each electric component. Here, all of the plurality of electric wires 12 wired in the same path, that is, between the same parts, may be cut into the same length. Then, the enamel on the cut end portion of each electric wire 12 is peeled off, and this portion is wound around the mounting groove 15a of the end holder 15 and soldered (see FIG. 5). After that, at the bending position (position shown by dotted line in the figure) shown in FIG.
Bend together. At this time, the shape of the bent portion is formed such that its radius of curvature is the same as the radius of the wire holder 13. On the other hand, the wire holders 13 are fixed on the side plate 11 at a plurality of predetermined positions. Then, the terminal holder 15 is fixed at a predetermined position while the bent portions of the plurality of bent electric wires 12 are engaged with the holding grooves 13a of the electric wire holders 13. Thereby, the electric wires 12 are three-dimensionally held in the vertical direction with respect to the side plate 11, and the panel with wiring is completed. Of course, all the work during this period can be automated by an automatic machine.

Next, a process of assembling an electric appliance using the panel arranged as described above will be described. First,
The front panel 19 is attached to the side plate 11 on which the electric wires 12 are routed, and each electric component is arranged on the side plate 11 and fixed with screws or the like. As a result, the terminal fitting 18 provided on each electric component comes into contact with the end of the electric wire 12 fixed to the terminal holder 15, and the electric wire 12 and the electric component are electrically connected. Further, a back panel, a lid and the like are attached to the side plate 11 to complete the assembling work of the electric appliance.

As described above, in this embodiment, the electric wire 12 is preliminarily arranged on the side plate 11 constituting the casing,
In other words, unlike the past, during the assembly process of electrical appliances,
Since the wiring of the electric wire 12 has already been completed, it is only necessary to attach each electric component relatively easily. Therefore, in the assembly process of the electric appliance, at least the time required for the wiring work can be shortened, and further, the automation of the assembly process can be expected, which can further improve the productivity. Moreover, since the electric wires 12 can be routed so as to be three-dimensional in the vertical direction with respect to the side plate 11, it is possible to make the lengths of the electric wires 12 wired in the same path all equal and The bending positions and shapes of the 12 bent portions can all be the same. Therefore, it is not necessary to individually perform the cutting work and the bending work of the electric wire 12, and a plurality of wires can be bent at the same time.
The efficiency of the wiring work of the electric wires 12 can be improved.

Since each electric wire 12 is held in the holding groove 13a, the electric wire 12 can be stably held without being displaced from its holding position. Further, since the holding groove 13a is formed along the circumferential direction of the electric wire holder 13, the electric wire 12 can be bent along this, and the bent wiring can be facilitated. 12 can be efficiently held.

Further, the characteristic of the enameled wire that it is excellent in heat resistance is extremely useful for electric appliances requiring heat resistance. Of course, a heat-resistant electric wire using an insulating coating such as cross-linked polyethylene, fluororubber, or silicone rubber may be used, but the use of enamel wire has the advantage of being cheaper than these. Further, by arranging the electric wires 12 on the side plate 11 in a three-dimensional manner, intersecting wiring is possible, and the electric wires can be efficiently arranged as compared with the case of arranging the electric wires 12 on the side plate in a plane.

The present invention is not limited to the above-described embodiments, but can be modified and implemented as follows, for example, and these embodiments also belong to the technical scope of the present invention. (1) In the above embodiment, the electric wire holder 13 is formed in a cylindrical shape, and the plurality of holding grooves 13a are formed on the peripheral side surface thereof, but the electric wire holder 13 may be configured as follows. The electric wire holder is formed in a prism shape having a quarter circular cross section, and as shown in FIG. 6, the peripheral side surface is formed into a comb blade shape in cross section so that a plurality of holding grooves 21 are formed along the axial direction. To form. Then, the holding groove 21 holds the bent portion of the electric wire 22 as in the above embodiment. Further, a fixing protrusion 24 is formed on the lower surface of the wire holder 23, and the fixing protrusion 24 is fitted into a fixing hole 26 formed in the side plate 25. Then, a portion protruding from the fixing hole 26 is riveted with heat to hold the wire holder. 23 is fixed on the side plate 25.

Further, in the same manner as above, in the electric wire holder in which a plurality of holding grooves are formed on the peripheral side surface along the axial direction in a prismatic shape, further, as shown in FIG. A holding claw 32 is formed at the opening edge portion of 31.
As a result, the electric wire 33 fitted in the holding groove 31 is securely held without falling off.

Further, in the wire holder having the prismatic shape and the holding groove formed with the holding claw as described above, a pair of locking claws are provided on the lower surface of the electric wire holder in place of the fixing protrusions as shown in FIG. 41, 41 are integrally formed. And
The electric wire holder 44 is fixed on the side plate 42 by fitting the locking claw 41 into the fixing hole 43 formed in the side plate 42 and then locking the locking claw 41 at the opening edge portion.

(2) In the above embodiment, the end of the electric wire 12 is wound around the terminal holder 15 and then soldered. However, the end of the electric wire is directly soldered, welded or screwed to the terminal fitting of each electric component. It may be configured to stop.

(3) In the above embodiment, the electric wire 12 is an enameled wire, but crosslinked polyethylene, fluororubber,
A heat resistant electric wire or the like using an insulating coating such as silicon rubber may be used. In addition, the present invention can be implemented with various modifications without departing from the scope.

[Brief description of drawings]

FIG. 1 is a perspective view showing the entirety of the present embodiment.

FIG. 2 is a vertical sectional view showing an electric wire holder.

FIG. 3 is a cross-sectional view showing an electric wire holder.

FIG. 4 is a partially cutaway side view showing a terminal holder.

FIG. 5 is a side view showing an electric wire being routed.

FIG. 6 is a cross-sectional view showing another embodiment (an electric wire holder formed in a comb blade shape).

FIG. 7 is a cross-sectional view showing another embodiment (holding claw formed in a holding groove).

FIG. 8 is a cross-sectional view showing another embodiment (an electric wire holder having a locking claw formed on the lower surface).

FIG. 9 is a top view showing a conventional example.

FIG. 10 is an enlarged top view showing a wiring form of a conventional example.

FIG. 11 is an enlarged top view showing a wiring form of a conventional example.

[Explanation of symbols]

 11, 25, 42 ... Side plate 12, 22, 33 ... Electric wire (enamel wire) 13, 23 ... Electric wire holder (holding tool) 13a, 21, 31 ... Holding groove

Claims (3)

[Claims] 1. A structure for individually wiring each electric component incorporated in a housing of an electric appliance by an independent electric wire, wherein a holding member stands on a side plate forming at least a part of the housing. An electric appliance, which is installed and arranged in advance so as to be three-dimensional in the vertical direction with respect to the side plate before the electric wire is electrically connected to each of the electric components by the holder. Wiring structure. 2. The wiring structure for an electric appliance according to claim 1, wherein the holding tool is provided with a plurality of holding grooves for holding the electric wires along the height direction. 3. The wiring structure for electrical appliances according to claim 2, wherein the holding groove is formed along a circumferential direction of the holder.