JPH0548060Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to the installation of an interior light and temperature display means used in prefabricated refrigerators, freezers, hot storages, etc.

[Conventional technology]

Conventionally, the interior light and its switch of a prefabricated refrigerator were constructed by embedding a vinyl chloride pipe (B) in a heat-insulating core material (C) in a heat-insulating core material (C) and connecting it with wiring that passed through the pipe (in actual practice). Kosho 53
-37318; see Figure 7), and in order to display the temperature inside the refrigerator outside the refrigerator, a through hole d is made in the heat insulating panel a separately from the pipe for the interior light, etc., so that the temperature inside the refrigerator expands inside the refrigerator. - The temperature-sensing part e in which the contracting medium was sealed was connected to the analog thermometer f through its through hole (see Figure 8).

[Problems to be solved by the idea]

The former of the above-mentioned conventional techniques requires pre-assembled pipes to be buried during the manufacture of the insulation panel, which requires man-hours and skill in processing and manufacturing, and it is not possible to freely install the switch depending on the location where the refrigerator is installed. It had the disadvantage of partially reducing heat insulation and airtightness.

In addition, the latter requires separate drilling, wiring, and installation for the interior light system and thermometer system, which requires a lot of processing man-hours and requires a separate number of parts.

[Means of problem solving]

The present invention eliminates the drawbacks of the conventional technology, and only requires drilling one small-diameter hole in the insulation panel that makes up the refrigerator, which can be done at the factory or at the installation site.
It does not require a dedicated panel, simplifies wiring and installation work, and reduces the number of parts.

Specifically, a small diameter hole is made in the side wall of a refrigerator, etc., an internal light and a temperature detection means are attached to the inside surface of the side wall, a box is attached to the small diameter outside surface of the refrigerator, and a switch inside the box is installed. This is a lighting/temperature display mounting device for a refrigerator, etc., in which a wiring connecting the interior light and the power supply, and a wiring connecting the thermometer installed in the box and the temperature detecting means are inserted through the small diameter hole.

In this case, the box may be of any type as long as it satisfies the above configuration, but it is preferable that the box has a wiring hole that communicates with the small diameter hole and two or more hanging pieces on either of the peripheries, on the outside of the side wall. It is preferable to use one consisting of a mounting board fixed to the surface and a box-shaped cover having a switch operating section and a temperature display section on the front and whose peripheral edge is elastically latched to the latching piece.

Although the box switch may be used alone, it is also possible to wire a wire that passes through the small diameter hole so that it is driven by an opening/closing switch provided near the door opening/closing part connected to the side wall or near the door lock. You can also.

[Effect]

The ambient temperature inside the refrigerator is indicated by a thermometer in a box attached to the outside surface of the side wall via a lead wire that passes from a temperature detection means inside the refrigerator through a small diameter hole in a heat insulating panel forming the side wall. The interior light is connected to a switch in the box via a lead wire passing through the same hole as described above, and is also connected from the box to a power source. In this case, the box switch is ON.
If you leave it as it is and connect a part of the lead wire from the inside of the refrigerator to a switch that is linked to the opening operation of the door, the interior light can be turned on automatically every time the door is opened.

〔Example〕

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a front view of a prefabricated refrigerator 1 using the mounting device of the present invention, which includes a door 2 and a predetermined number of heat insulating panels 3, 3, . It is formed from.

Reference numeral 10 denotes a box attached to the outside surface of the refrigerator panel 3 forming a side wall, and a thermometer 11 and a switch 12 for the interior light are provided on the outward facing front surface of the box. A hole 20 having a diameter of about 10 mm is bored through the heat insulating panel 3 on the back side of the box 10 in the inner and outer directions.

An interior light 30 is installed above the inner surface of the heat insulating panel 3 having the holes 20, and a temperature sensor 40 for detecting the atmospheric temperature inside the refrigerator is installed in the middle part (see Fig. 2). ).

The box 10 has a through hole 15 near the center that communicates with the hole 20, upper and lower peripheral edges are provided with upward L-shaped hanging pieces 17, and screw holes 16 are provided at the four corners for installation. a substrate 14 and the thermometer 1
1 and a box-shaped cover 13 with an interior light switch 12 mounted on the front. After screwing the mounting board 14 to the heat insulating panel 3 in advance, predetermined connections are made and the cover is attached to the hooking piece 17. The upper and lower edges of 13 are elastically latched (see FIGS. 3 and 4).

The interior light 30 is fixed to the upper part of the heat insulating panel 3 in which the hole 20 is formed, and is connected to the switch 12 of the box 10 through the hole 20 by a lead wire 25.
is connected to. In this case, the interior light 30 can be fixed above another heat insulating panel 3 or fixed to the lower surface of the ceiling 5.

A power supply connection lead wire 27 is provided at the top of the box 10 and extends above the heat insulating panel 3. The power supply connection lead wire 27 may be led out of the refrigerator by extending along the inside surface of the heat insulating panel 3 and penetrating the ceiling panel 5, as shown by the broken line in FIG.

The temperature sensor 40 is composed of a so-called resistance thermometer (RTD), a thermistor, or a thermocouple (thermocouple), and is connected to the thermometer 11 of the box 10 via a lead wire 26 to detect resistance changes and thermoelectromotive force. The ambient temperature inside the refrigerator is displayed on the thermometer 11 by a calculation element (not shown).

In this case, the temperature display section of the thermometer 11 displays numbers using a liquid crystal (LCD) or a light emitting diode (LED), but in the former case, a constant DC voltage is sufficient, so a battery built into the box 10 is used. (See FIG. 4b) In the latter case, since a voltage of 100V is required, it is necessary to connect the power supply connection lead wire 27 in parallel with the circuit of the interior light 30.

Lead wires 25 and 2 connecting these interior lights 30 and temperature sensors 40 to the box 10, respectively.
6 are inserted separately into the holes 20 of the heat insulating panel 3, and are attached to the inner surface of the heat insulating panel 3 using U-shaped nails or adhesive tape.

In this case, the lead wires 25 and 26 can be easily inserted into the hole 20 by using wires housed in an integral insulating tube.

In the above embodiment, the temperature inside the refrigerator is always displayed on the thermometer 11, but a separate dedicated switch may be provided in the box 10 to display the temperature only when necessary. If it is desired to record changes, a recording printer (not shown) may be connected to the thermometer 11.

FIG. 5 and FIG. 6 show other embodiments, in which the interior light 30 is turned on and off by opening and closing the door 2. In FIG. 5, a limit switch (hereinafter referred to as Ls) 12a is connected to the lead wire 25, and a hitter 12b is attached to the inner surface of the door 2.
Even if switch 12 of 0 is always on, Ls1
When 2a and hitter 12b are separated, the light turns on, and it does not turn off while door 2 is open (when someone is inside), and then when door 2 is closed (when someone is out) Ls12
When the hitter 12b comes into contact with a, the light is turned off.

In addition, in FIG. 6, a lock receiver 9 is fixed to the outer piece of the resin foam storage door frame 7 fixed to the heat insulating panel 3 that forms the periphery of the storage door 6, and a push pin type switch 12c is installed inside the lock receiver 9. The lead wire 25 is connected to the back side of the refrigerator door frame 7, and when the latch 8a of the handle-type latch lock 8 of the door 2 is closed, the switch 12c is pressed to turn off the interior light 30 of the refrigerator. When the latch 8a of the latch lock 8 is released from the switch 12c to open the door 2, it turns on and lights up.

[Effect of idea]

According to the present invention, the following effects can be obtained.

(1) There is no need to manufacture a special heat insulating wall panel in advance, and it is only necessary to make small diameter holes in an ordinary panel, making it easy and simple to manufacture the panel.

(2) Since holes can be drilled at any position in prefabricated refrigerators, etc., holes can be easily drilled not only in factories but also at construction sites, and boxes can be easily installed on site.

(3) Wiring between the interior light and temperature sensor and the box can be done easily.

(4) Since the thermometer and interior light switch are integrated,
The number of parts is reduced and the appearance is improved.

(5) Since the hole space inside the panel is reduced, insulation and airtightness are improved.

[Brief explanation of drawings]

Fig. 1 is a front view of a prefabricated refrigerator to which the present invention is applied, Fig. 2 is a sectional view taken along line A-A in Fig. 1, and Fig.
4A is an exploded perspective view of the box, FIG. 4B is an electric circuit of the first embodiment, and FIGS. 5 and 6 are horizontal sectional views showing other embodiments. , 7 and 8 are cross-sectional and perspective views showing conventional examples, respectively. 2...door, 3...side wall (insulation panel), 10...
... Box, 11 ... Thermometer, 12 ... Switch, 20 ... Hole, 25, 26 ... Lead wire, 30
...Interior light, 40...Temperature sensor.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A small-diameter hole is drilled in the side wall of a refrigerator, etc., an internal light and a temperature detection means are attached to the inside surface of the side wall, and a box is installed on the outside surface of the small-diameter hole. , and the wiring connecting the switch inside the box to the interior light and power supply, and the wiring connecting the thermometer installed in the box and the temperature detecting means, are inserted through the small diameter hole to provide lighting and temperature control for a refrigerator, etc. Display mounting device. (2) The box has a wiring hole that communicates with the small diameter hole, a mounting board that is fixed to the outside surface of the side wall, which has two or more hanging pieces on either of its peripheries, and a switch operation section on the front. 2. The lighting/temperature display mounting device for a refrigerator or the like according to claim 1, comprising a box-shaped cover having a temperature display portion and a periphery thereof elastically latched to the latching piece. (3) A wire passing through the small diameter hole is connected so that the switch operation part of the box is driven by an opening/closing switch provided near a door opening/closing part connected to the side wall or near a door lock. No.
Lighting/temperature display mounting device for refrigerators, etc. as described in (1).