JPS62217085A - Wiring supporter in heat-insulating wall - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention]

(a) Industrial application field The present invention relates to a refrigerator, a low-temperature refrigerator, and a
1-Relating to a wiring support device in a case or the like. (b) Conventional Technical Utility Model Publication No. 59-33968 (F25D21104)
When placing a linear object that penetrates the insulating wall that partitions the rain space where the temperature of one space is below the dew point of the air in the other space and communicates from one space to the other space, the above-mentioned A wooden frame is provided at the opening that is the penetration part of the insulating wall, and the wooden frame is filled with a heat insulating material surrounded by a moisture barrier layer, and a pipe that penetrates this heat insulating material and has both ends located in the rain space, and a pipe is placed inside this pipe. The object is fixed in the tube with silicone resin that is passed through the tube and filled in the tube, and a cone whose diameter decreases as it moves away from the insulation wall is attached to a portion of the object that extends from the insulation wall to the other space. A structure for preventing condensation on objects connected to a cold room is shown. Pi Problems to be Solved by the Invention According to the above-mentioned conventional technology, a wooden frame,
Seven parts are required: a moisture barrier layer, a heat insulating material, a lid for the wooden frame, a pipe, a silicone resin to fill the pipe, and a cone. The problem arose in that large-scale on-site work was required, including the foaming process of filling the pipes with foamed urethane to form a heat insulating material and the injection work of injecting silicone resin into the pipes. In order to solve the above problems, the present invention provides a through hole (21) formed in a heat insulating wall (3) that partitions a low temperature area and a warm area.
A thermally insulating guide tube ■ attached to 1 and an exposed part [phase] whose outer diameter is gradually larger than the inner diameter of the guide tube and which is inserted into the guide tube and has one end exposed to the cold air of the low-temperature area. ,
A telescopic insulated pipe (C) whose other end is an exposed part exposed to the warm air of the warm area (C), and a plurality of covered electric wires (C) that are passed through the insulated pipe and extend from the low temperature area to the warm area. and a band that tightens both exposed portions of the insulated pipe (c) and binds the covered electric wires within this insulated pipe.
(7) Provides a wiring support device in a heat insulating wall (3). (E) According to the working example, since the guide pipe (■) is thermally insulating and the heat insulating tube is thermally insulating, mutual heat conduction between the low temperature and warm areas through the through hole (211) is prevented. In addition to being able to press the inner surface of the guide tube (2Q) with its own elasticity, the insulated tube (C) has the ability to press the inner surface of the guide tube (2Q) with its own elasticity. Therefore, it can be easily attached to the guide tube 4, and the airtight effect between the inner surface of the guide tube (20+) is improved, and the band r2ω (7)
Therefore, by tightening both exposed parts c261@ of the insulated pipe, the insulated pipe α) can be sealed at the same time as the bundle of the multiple covered electric wires (c) passed through the insulated pipe (c), and the insulated pipe α) can be sealed. By forming an insulating space Q that is longer than the thickness of the insulating wall (3) inside (c), it is possible to prevent heat conduction by the air inside the insulating pipe (c) to both the low temperature and warm areas. (f) Examples To explain the present invention in detail with reference to the drawings below, (IJ is a low-temperature showcase whose main body is composed of a heat insulating wall (3) with an opening (2) for storing and taking out products at the front. A partition plate (4) is installed at an appropriate distance from the inner surface of the heat insulating wall (3).
), a plate-fin type cooler (6) equipped with an electric heater (5) for defrosting and a fan case (
A cold air passageway (9) in which an axial blower fan (8) supported by A blower fan (8) forms a blowout and a suction opening a3α facing each other along both upper and lower edges, and blows the cold air that has been heat exchanged in the cooler (6).
Therefore, by forcing circulation as shown in FIG. 3, a cold air curtain (AC) is formed in the opening (2) to cool the storage chamber (1'2) and store the stored items at a predetermined temperature. The bottom wall (3A) of the heat insulating wall (3) is formed with a drain port α9 for discharging dew water flowing from the cooler (6) during defrosting to the outside, and a drain pipe ( 16) is connected.αη is the front wall of the insulation wall (3)

[3B] A laterally long raceway formed at the bottom. On this raceway, a controller tl& for controlling energization to the electric heater (52) and an electric terminal board (19, etc.) are arranged. A flexible guide tube attached to the through hole (211) formed in the bottom wall (3A), made of a heat insulating material such as rubber or resin, and in contact with both the front and back sides of the bottom wall (3A). 7 lunges (c) (c) and an extension part c! which extends upward from the upper seven lunges and projects into the cold air passage (9) serving as a low temperature area are integrally formed.This extension part (Foundation) uses the guide pipe (2) when cleaning the inside of the cold air passage (9) with water.
An ice tile is provided at the upper end of the wall to prevent covered electric wires, which will be described later, from hanging onto the surface of the bottom wall (3A). (C) is an expandable heat insulating tube inserted into the guide tube (3), which is made of a heat insulating material made of an elastic foamed resin with countless closed cells, such as foamed polyethylene, coated with vinyl. It is slightly larger than the inner diameter of the tube ■, and when it is inserted into the guide tube 4, it contracts slightly, and the repulsive force accompanying this contraction causes its outer surface to press against the inner surface of the guide tube ■, causing it to become the guide tube ■. The coefficient of friction between the parts increases and the parts are supported within this guide tube. This heat insulating tube (C) is longer than the guide tube (■), and when inserted into the guide tube (■), its upper end becomes a cold air passage (9), which becomes a low temperature area.
) is the exposed part (c) that is exposed to the cold air within ), and the lower end is the exposed part (5) that is exposed to the warm air outside, which is the warm area. □□□ is a plurality of covered electric wires that are passed through the insulation pipe ■9 and extend from the low temperature area to the warm area. Electrical components are connected to the control equipment (1 to 1) and the electrical terminal board α9. □□□■ is a band made of a linear member or a band-like member, and these two bands connect the two exposed parts o.
By tightening the two places (6I+27), the insulated pipe is narrowed and deformed in the center direction so that the inner diameter becomes narrower at those two places, and two protrusions T310 are formed, and when these protrusions hit the covered wire ruts, This covered wire is bundled. (g) is a heat insulating space formed between both protrusions r311C321 in the heat insulating pipe [with] as the band (29) ■ is tightened, and its length is longer than the thickness dimension of the bottom wall (3A). , to prevent air from flowing through the insulated pipe (c). According to the wiring support device having the above configuration, since the guide tube (2) is thermally insulating and the heat insulating tube (c) is thermally insulating, the through hole (21
In addition to being able to prevent mutual heat transfer between the low temperature and warm areas through the guide tube ■, the expandable and contractible heat insulating tube (c) pushed through the guide tube ■ has its elasticity to prevent the inner surface of the guide tube ■ In order to exert the effect of pressing the heat insulating pipe Qω, it can be easily attached to the guide pipe ■ with its own elasticity, and the guide pipe ■
The airtight effect between the inner surface of the band (
2) ■Insulated pipe (both exposed parts c!6 of 25I) (
By tightening the insulation pipe (251), the insulation pipe can be sealed at the same time as bundling the multiple covered electric wires passed through the insulation pipe (c). It is possible to form a longer insulated space (C24) to prevent heat conduction to both the low temperature and warm areas by the air inside the insulated pipe C24. ■ Since the outer diameter of the insulated tube inserted into the guide tube is gradually larger than the inner diameter of the guide tube, it is attached within the guide tube by its own elasticity, making the installation work of the insulated tube extremely simple. Not only this, but also the airtightness between the guide tube and the guide tube is improved. ■ By tightening both exposed parts of the insulated tube with a band, it is possible to bundle the covered wires passed through the insulated tube and seal the insulated tube. By doing this at the same time, it is possible to simplify the bundling and sealing work, and create an insulated space that can prevent air from flowing to both low-temperature and warm areas through the insulated pipe. ■ By forming both exposed parts on the insulated pipe Not only can the band tightening work be performed at a location away from the heat insulating wall, but also the length of the heat insulating space can be made longer than the thickness of the heat insulating wall, thereby improving the heat insulating effect of the heat insulating pipe.

[Brief explanation of drawings]

The drawings all show an embodiment of the wiring support device in the heat insulating wall of the present invention, and FIG. 1 is a vertical sectional view of the main part, FIG. 2 is a perspective view of the main part, and FIG. 3 is a diagram of a low-temperature showcase equipped with the wiring device. FIG. (3)...insulation wall, (to)...guide pipe, c! 1
1...Through hole, ■...Insulated pipe, @(5)...Exposed part, ■...Coated electric wire, 09)C301-...Band, Connection...Insulated space. Applicant: Sanyo Electric Co., Ltd., 1 other representative, Akihito, patent attorney: Takuji Nishino, 1 other representative, Figure 4

Claims (1)

[Claims] 1. A thermally insulating guide tube attached to a through hole formed in a heat insulating wall that partitions a low-temperature area and a warm area; an outer diameter of the guide tube is gradually larger than an inner diameter; a telescopic insulating tube having one end as an exposed portion exposed to the cold air of the low-temperature zone and the other end as an exposed portion exposed to the warm air of the warm zone; A wiring support device in a heat insulating wall, which is constituted by a sheathed electric wire and a band that tightens both exposed portions of the heat insulated tube and binds the covered electric wire within the heat insulated tube.