JPH11108552A - Device for fixing thermally sensitive cylinder in freezer or refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a freezer or a refrigerator where a thermally sensitive cylinder is fixed to a pipe for cooling being wound around an internal box by a thermally sensitive cylinder fixing member. SOLUTION: With a device for positioning and fixing the thermally sensitive cylinder of a freezer or a refrigerator, in the freezer or the refrigerator where pipes 6 for cooling are mounted to the outer-periphery surface of an inner box 3 for forming a storage room inside and the temperature of an internal box 3 is detected by a thermally sensitive cylinder 8 in that a thermally sensitive body 9 is inserted inside, the pipe is arranged in parallel at least at one portion of the pipes 6 for cooling, a rectangular fixing member 10 for fixing the thermally sensitive cylinder 8 being arranged between the parallel pipes is provided, and the fixing member 10 forms two recessed parts 11 and 12 for engaging one pipe 6 for cooling and the thermally sensitive cylinder 8 to an end part 10A of an internal box side and allows an end part 10B that orthogonally crosses the end part 10A of the internal box side to touch the other pipe 6 for cooling.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for fixing a temperature-sensitive cylinder in a freezer or refrigerator in which a cooling pipe is attached to an inner box.

[0002]

2. Description of the Related Art Conventionally, in a direct cooling type freezer or refrigerator, a cooling pipe is attached to an outer peripheral surface of an inner box, and a temperature sensing tube for detecting a temperature of the inner box is fixed to the inner box.

FIGS. 3A and 3B show a conventional thermosensitive cylinder fixing device, wherein FIG. 3A is a front view and FIG. 3B is a side view of FIG.

The conventional fixing device for a temperature-sensitive cylinder is, specifically,
As shown in FIG. 3, a temperature sensing tube 20 having a temperature sensing element inserted therein.
Was attached to the inner box 22 via, for example, two temperature-sensitive cylinder fixing members 21.

In FIG. 3, reference numeral 23 denotes a lead wire of a thermosensitive body,
24 is a cooling pipe.

[0006]

However, in the conventional structure as shown in FIG.
There is a problem that it is difficult to set up how to attach.

That is, to keep the temperature sensing cylinder at a fixed position,
It is important for mass-produced products to stabilize their quality. In this part, it was necessary to secure the position of the temperature sensing portion from the cooling pipe (automatically and accurately wound) and to fix the temperature sensing tube at a predetermined position.

[0008]

According to the present invention, in order to solve the above-mentioned problem, a cooling pipe is attached to an outer peripheral surface of an inner box forming a storage room therein, and a temperature of the inner box is sensed inside. In a freezer or a refrigerator in which a temperature sensing element is detected by a temperature sensing tube in which a warm body is inserted, at least one pipe is arranged in parallel with the cooling pipe, and the temperature sensing cylinder arranged between the parallel pipes is fixed. A rectangular fixing member is provided, and this fixing member forms two concave portions for fitting one of the cooling pipes and the temperature-sensitive cylinder at the inner box side end, and the other of the cooling pipes An object of the present invention is to provide a fixing device for a temperature-sensitive cylinder in a freezer or a refrigerator in which an end perpendicular to the inner box side end is brought into contact.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a fixing device for a temperature sensing tube in a freezer or refrigerator according to the present invention will be described with reference to FIGS.

FIG. 1 shows an embodiment of an apparatus for fixing a temperature-sensitive cylinder in a freezer or refrigerator according to the present invention.
(A) is a front view, (B) is a cross-sectional side view taken along the line AA ′ of (A), and FIG. 2 is a cross-sectional front view of the temperature sensing cylinder.

Reference numeral 1 denotes a heat insulating body having an open upper surface forming a freezer or a refrigerator and having a storage room 2 therein. The heat insulating body 1 comprises a metal inner box 3 having good heat conductivity, and a space between the inner box 3 and the inner box. And an insulating box 5 such as urethane foam filled between the outer box and the inner box.

A cooling pipe 6 acting as an evaporator is spirally wound around the outer peripheral surface of the inner box 3, that is, on the side of the heat insulating material 5 so that the pipes are parallel to each other. The cooling pipe 6 is formed of a copper tube, and is attached to the inner box 3 by a metal tape (not shown) having good thermal conductivity such as aluminum foil.

Reference numeral 8 denotes a temperature-sensitive tube in which a cylindrical temperature-sensitive body 9 connected to the outside by a lead wire 9A is inserted. The temperature-sensitive tube 8 is disposed between the cooling pipes 6. . 10
Are two temperature-sensitive cylinder fixing members for attaching the temperature-sensitive cylinder 8 so as to come into contact with the outer peripheral surface of the inner box 3 from both sides of the temperature-sensitive cylinder. The fixing member 10 is formed in a rectangular shape. Part 10A
Are formed with two concave portions 11 and 12 for fitting the lower cooling pipe 6 and the temperature sensing tube 8 to each other. Thermosensitive cylinder fixing member 1
0 is an end 1 orthogonal to the inner box side end 10A of the upper cooling pipe 6 by fitting the recess 11 into the lower cooling pipe 6.
The temperature sensing tube 8 is brought into close contact with the outer peripheral surface of the inner box 3 by mounting the temperature sensing tube 8 in contact therewith.

Here, a method of manufacturing the heat insulating main body 1 will be described. First, a cooling pipe 6 is wound around the outer peripheral surface of the metal inner box 3 and is tightly fixed to the inner box 3 with a metal tape. Then, the temperature sensing tube 8 is attached between the cooling pipes 6 by using the cooling pipes 6 with the two fixing members 10. The inner box 3 to which the temperature sensing tube 8 is attached is inserted into the outer box 4 at an interval, and the space between the inner box 3 and the outer box 4 is filled with urethane foam. When 5 is formed, the heat insulating main body 1 is completed.

The thermosensitive cylinder fixing member 10 has a concave portion 11 and an end portion 10.
B and attached to the parallel cooling pipe 6 and solidified by the heat insulating material 5 to the inner box 3 by solidification of urethane foam.
The temperature-sensitive cylinder fixing part 1 attached to the cooling pipe 6
0 indicates that the end portion 10B is in contact with the cooling pipe 6 even when the heat sensing tube 8 is mounted and the concave portion 11 is pivoted, so that the rotation is prevented and the heat insulating material 5 is not foamed. It can be prevented from coming off at the time of manufacturing.

[0016]

The fixing device for a temperature-sensitive cylinder according to the present invention is constructed as described above, and has the following effects.

The working efficiency of manufacturing is improved.

It is easy to attach to the same position at any time, eliminating individual differences, and improving reliability.

It is easy to put on and take off and hard to come off.

[Brief description of the drawings]

1A and 1B show an embodiment of a fixing device for a temperature-sensitive cylinder in a freezer or a refrigerator according to the present invention, wherein FIG. 1A is a front view, and FIG. 1B is a cross-sectional side view taken along the line AA ′ of FIG. .

FIG. 2 is a cross-sectional front view of a temperature sensing cylinder.

FIG. 3 shows a conventional fixing device for a temperature-sensitive cylinder, (A)
Is a front view, and (B) is a side view of (A).

[Explanation of symbols]

 3: Inner box 6: Cooling pipe 8: Thermosensitive cylinder 9: Thermosensitive body 10: Thermosensitive cylinder fixing member 11, 12: recess

Claims (1)

[Claims] 1. A freezer or a freezer in which a cooling pipe is attached to an outer peripheral surface of an inner box forming a storage room therein, and the temperature of the inner box is detected by a temperature sensing tube having a temperature sensing element inserted therein. In the refrigerator, at least one pipe is arranged in parallel with the cooling pipe, and a rectangular fixing member for fixing the temperature-sensitive cylinder disposed between the parallel pipes is provided. At the end, two recesses for fitting one of the cooling pipe and the temperature-sensitive cylinder are formed, and the other cooling pipe is brought into contact with an end orthogonal to the inner box side end. Characteristic device for fixing temperature-sensitive cylinder in freezer or refrigerator.