JPH0228384Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement in a thermostatic oven suitable for use as a refrigerator, for example.

Recently, as shown in Fig. 1, a refrigerator door (insulated door) 3, which is pivotally supported on a refrigerator body 1 (a so-called insulated box body with a heat insulating material filled between the inner and outer boxes) with a hinge 2, has a A refrigerator has been developed that is equipped with a panel 4 that includes an internal temperature display, a quick-freeze instruction switch, a freezer temperature instruction switch, and the like. This is a format that is highly anticipated in the future as it will greatly improve the usability of refrigerators. In addition, 5 is a door for the refrigerator compartment.

Such a refrigerator has thermostats, coolers, etc. installed in various parts of the main body 1, and a panel stand 4 on the door 3.
In order to electrically connect the two, a common configuration is to lead the lead wires on the main body 1 side together to the door 3 side through the inside of the hinge 2. In this case, the electrical connection between the hinge 2 and the panel mount 4 is made through the panel mount mounting hole 7 drilled in the outer panel 6 of the door 3, as shown in FIG.
and a lead wire 1 inserted between the hinge receiver 10 provided on the door sash 9 between the inner panel 8 and the outer panel 6 of the door.
1 (double-dashed line), so this lead wire 1
1 is disposed in the heat insulating material (urethane) at the same time as the foamed heat insulating material is foamed.

However, in such a configuration, the lead wire 11
If a break occurs in the lead wire 11, the urethane must be removed in order to replace the lead wire 11, which is disadvantageous in that repair is extremely difficult. In addition,
In devices such as refrigerators whose doors are frequently opened and closed, the lead wires inside the hinge 2 are subjected to repeated force and are likely to break. Especially the lead wire 11 inside the door 3
If the wire is fixed to urethane, this tendency becomes more pronounced because there is no margin for wire length.

Moreover, if the lead wire 11 is arranged in a straight line, if moisture enters from the hinge receiver 10, this lead wire 1
1 and reached the wiring section of the panel stand 4, which was an inconvenience. Moreover, the thickness of the urethane on the back side of the panel mounting hole 7 is thinner than on other parts, and since the lead wire 11 passes through it, it becomes even thinner, resulting in a disadvantage that the insulation efficiency deteriorates.

The present invention has been made to eliminate the above-mentioned drawbacks. Hereinafter, the present invention will be explained with reference to FIGS. 2 and 3. In FIG. 2, 12 is a protective tube made of resin such as polyethylene or polypropylene that communicates between the hinge receiver 10 and the panel mounting hole 7.
It is embedded in foam insulation and forms a J-shape. 1
A lead wire 3 is movably inserted into the tube 12, and connectors 14 and 15 are provided at both ends. The connector 14 is connected to the panel stand 4, and the connector 15 is connected to a main body side connector (not shown) provided near the hinge of the main body 1.

According to the above configuration, the lead wire 13 is simply inserted into the protective tube 12 inside the door 3, so if the lead wire 13 is broken, the connectors 14, 15
can be removed, extracted from the protective tube 12, and a new lead wire can be inserted, making repair extremely easy. In addition, the lead wire 13 is simply slidably inserted and has a J-shaped slack shape.
There is a margin for displacement of the lead wire as the door 3 is opened and closed, and disconnection accidents can be prevented. Moreover,
Since the lead wire 13 and the protective tube 12 form a trap, even if moisture infiltrates from the hinge receiver 10, it does not reach the panel stand 4 and the connector 14, making it moisture-proof and waterproof. Furthermore, protection tube 12, lead wire 1
3 bypasses the back side of the panel stand 4, so the urethane behind the panel stand 4 becomes thicker and the heat insulation effect can be enhanced.

The above-mentioned protection tube 12 has the disadvantage that since the straight tube is made into a J-shape by heat processing, there are large variations in dimensions, and depending on the degree of bending, flattening or bending may occur, resulting in a high incidence of defective products in which the lead wire cannot be inserted. There is. Therefore, as shown in FIG. 4, this drawback may be eliminated by using a bendable tube or a loose tube 16 as the protective tube. In FIG. 4, the loose tube 16 has a straight tube on the hinge receiver 10 side, and the rest has a loose shape. Further, the same effect can be obtained by using a so-called flexible tube as a protection tube. In addition, in the case of a flexible protective tube, two
It has the advantage that even if the distance between the points changes slightly, there will be no problem with the installation. Further, although a refrigerator is shown as an example, it can also be used in a hot storage, a freezer, etc.

As mentioned above, in the present invention, a protective tube is embedded in the foam insulation material of the insulated door, a lead wire is slidably inserted into the protective tube, and the lead wire is insulated through the inside of the hinge. By guiding the lead wire to the box side, the lead wire is displaced appropriately as the insulation door is opened and closed, preventing the disconnection accident that conventionally occurs when the lead wire is fixed, and even if the lead wire is disconnected, it can be pulled out from the protective tube. The lead wire can be easily replaced with a new lead wire, and repair is also easy, making it an extremely useful device in practice.

[Brief explanation of the drawing]

Figure 1: Schematic front view of the refrigerator, Figure 2: Perspective view of main parts of the refrigerator of the present invention (enlarged perspective view of section A in Figure 1),
FIG. 3: A perspective view of the protection tube, FIG. 4: An explanatory view of the main parts of another embodiment, and FIG. 5: A plan view of the main parts. Code, 12... protection tube, 13... lead wire.

Claims (1)

[Scope of Claim for Utility Model Registration] An insulated door filled with foam insulation material between the inner and outer walls is pivoted to the opening of an insulated box body with a hinge so that it can be opened and closed, and an electrical component installed in the insulated door. A lead wire is arranged in the foam insulation material, and the lead wire is guided to the insulation box side through the inside of the hinge. A constant temperature bath characterized by having a protective tube buried therein which communicates between the two, and the lead wire slidably inserted into the protective tube.