JP2003075057A - Piping holder of electric refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a piping holder of an electric refrigerator with a spacer for holding a piping, wiring, etc., buried between an outer box and an inner box, which neither deteriorates tae heat insulation performance, dews on the inner box surface, nor sweats on the outer box. SOLUTION: A spacer 10 is composed of a support 10d for supporting a suction pipe 6, a circular outside part 10b having an opening 10a for inserting the suction pipe 6 so as to ensure a space over a set space between the support 10d and an outer or inner box around the support 10d, an inside part 10c formed with a fixed space between the outside part 10b and the support 10d, and a rib 10i connecting the outside part 10b, the inside part 10c and the support 10d so as to form holes 10e for passing a foamed insulating material between the outside and inside parts 10b, 10c.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric refrigerator, and more particularly to the shape of a spacer for holding a suction tube, a capillary tube, wiring, etc., which is embedded between an outer box and an inner box.

[0002]

2. Description of the Related Art In a conventional electric refrigerator, for example, as shown in FIGS. 1 and 4, 1 is an outer box, 2 is an inner box, and foam insulation is provided between the outer box 1 and the inner box 2. The material 3 is filled. In the foam insulation material 3, a compressor 4 arranged outside the refrigerator and an evaporator 5 arranged inside the refrigerator are connected in parallel to a suction pipe 6 and an outer circumference of the suction pipe 6. The capillary tube 7 and the wiring 8 for connecting each electric circuit are buried. The suction pipe 6 for returning the refrigerant from the evaporator 5 to the compressor 4 is likely to become low in temperature, and when it comes into contact with the metal back plate 1a forming the back wall, the surface of the back plate 1a is condensed and eventually corroded. In order to cause such a situation, the suction pipe 6 is fixed to the inner box 2 with a tape 9 or the like, and a spacer 10 made of expandable polyethylene is attached under the suction pipe 6.

As shown in FIG. 4A, when the suction pipe 6 is attached to the inner box 2 with the tape 9 or the like, the temperature zone on the surface side of the inner box 2 (the inside of the refrigerator) is When high,
There is a risk that the surface of the inner box 2 will condense and water will accumulate in the refrigerator, and as shown in FIG. 4 (B), a spacer 10 made of expandable polyethylene is placed under the suction pipe 6. In the case of mounting, it is necessary to fix the spacer 10 with the tape 9 or the like so that the spacer 10 is not blown by the foaming pressure when the foam heat insulating material 3 is filled, resulting in an increase in material cost and man-hours.

When the suction pipe 6 is attached by using the fixture 11, as shown in FIG. 4C, a bonding work for fixing the fixture 11 and the inner box 2 or the inner box. Therefore, it is necessary to provide a means such as a hole for the material 2 and the manufacturing method is greatly restricted, resulting in an increase in material cost and man-hours.

When the spacer 10 formed of a cylindrical soft foam or the like is attached to the suction pipe 6, as shown in FIG.
As shown in (D), when the foam heat insulating material 3 is filled, the soft foam is compressed, and the distance between the inner box 2 and the suction pipe 6 and the distance between the outer box 1 and the suction pipe 6 become sufficient. Otherwise, the inner box 2 and the outer box 1 may be affected by heat due to the low temperature of the suction pipe 6, and if the spacer 10 is made large to prevent this, the foamed heat insulating material due to flow inhibition of the foamed heat insulating material 3 is generated. There was a risk that unfilling of 3 might occur.

Therefore, as shown in FIG. 4 (E), a circular spacer 10 having an opening 10a made of a resin for solving the above-mentioned problems may be used, and the suction pipe 6 is connected to the circular spacer 10. It was inserted through the opening 10a and attached so as to be in close contact with the inner circumference of the spacer 10.

However, in the spacer 10, when the capillary tube 7 connected in parallel to the outer circumference of the suction pipe 6 is attached to the spacer 10, the capillary tube 7 is formed in a convex shape on the outer circumference of the suction pipe 6. Therefore, it is necessary to align the position of the capillary tube 7 with the opening of the spacer 10. Otherwise, the capillary tube 7 and the spacer 10 must be aligned.
A space is formed between the spacer 10 and the suction pipe 6, and the spacer 10 and the suction pipe 6 are not in close contact with each other, so that the spacer 10 cannot be completely fixed. There was a fear of problems.

[0008]

SUMMARY OF THE INVENTION In view of the above problems, the present invention is embedded between an outer box and an inner box without impairing heat insulation performance, preventing condensation on the surface of the inner box, and preventing sweating on the outer box. An object of the present invention is to provide a pipe holding member for an electric refrigerator, which is provided with a spacer for holding the pipe, wiring, etc.

[0009]

According to the present invention, in order to solve the above problems, an inner box having a suction tube and a capillary tube connected in parallel to the outer circumference of the suction tube in advance and wiring is inserted into the outer box. Then, in a pipe holding member of an electric refrigerator in which a foam insulation material is filled between both boxes, a support portion that supports the suction pipe and an outer periphery of the support portion are set from the support portion and the outer box or the inner box. The support portion is formed so as to form an outer peripheral portion having an opening for inserting the suction pipe and a hole portion through which the foamed heat insulating material escapes between the outer peripheral portion and the support portion, with a space equal to or larger than the predetermined space being secured. And a spacer provided with a rib that connects the outer peripheral portion and the outer peripheral portion at a constant interval.

The pipe insertion port of the support portion is formed in an inverted V shape.

The pipe insertion opening and the outer peripheral portion are formed so as not to come into contact with each other.

The supporting portion is provided with a recess for accommodating the capillary tube.

A notch is provided in a part of the outer peripheral portion of the spacer other than the opening.

The inside diameter of the supporting portion is set to be the size of the outside diameter of the suction tube and the outside diameter of the capillary tube.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below as examples based on the accompanying drawings. 1 is a side sectional view showing a schematic configuration of a refrigerator according to the present invention, and FIG. 2 corresponds to a sectional view (A) showing an embodiment of a spacer for fixing a pipe according to the present invention and AA in FIG. FIG. 3 is a side sectional view (B), and FIG. 3 is a sectional view (A) showing another embodiment of the spacer for fixing the pipe according to the present invention, and AA of FIG.
It is a sectional side view (B) corresponding to. The same parts as those in the conventional example have the same reference numerals.

In the figure, 1 is an outer box and 2 is an inner box, and a foam heat insulating material 3 is filled between the outer box 1 and the inner box 2. In the foam insulation material 3, a compressor 4 arranged outside the refrigerator and an evaporator 5 arranged inside the refrigerator are connected in parallel to a suction pipe 6 and an outer circumference of the suction pipe 6. The capillary tube 7 and the wiring 8 for connecting each electric circuit are buried.

The suction pipe 6 for returning the refrigerant from the evaporator 5 to the compressor 4 is likely to be at a low temperature, and when the suction pipe 6 comes into contact with the metal back plate 1a forming the back wall, the back plate 1
Condensation on the surface of a causes the situation to corrode, and
If the temperature of the surface side of the inner box 2 (the inside of the refrigerator) is high, when the suction pipe 6 contacts the inner box 2, the surface of the inner box 2 is condensed.

Since it is necessary to prevent the suction pipe 6 from coming into contact with the back plate 1a and the inner box 2 in the foamed heat insulating material 3, a spacer 10 is attached to the suction pipe 6, and the suction pipe 6 is The back plate 1a and the inner box 2 are prevented from coming into direct contact with each other and are held in the foamed heat insulating material 3.

As shown in FIG. 2, the spacer 10 is
A support portion 10d for supporting the suction pipe 6 and the support portion 10d
On the outer periphery of d, a circular outer peripheral portion 10b having an opening 10a into which the support portion 10d is spaced from the back plate 1a or the inner box 2 by a predetermined distance or more and the suction pipe 6 is inserted. , A hole through which the foamed heat insulating material 3 escapes between the outer peripheral portion 10b and the supporting portion 10d, while providing an inner peripheral portion 10c formed at a constant interval between the outer peripheral portion 10b and the supporting portion 10d. A rib 10i is formed to connect the outer peripheral portion 10b, the inner peripheral portion 10c, and the supporting portion 10d so as to form 10e.

Further, the pipe insertion port 10 of the supporting portion 10d
f is formed in an inverted V shape, and is formed so that the pipe insertion opening 10f and the inner peripheral portion 10c do not come into contact with each other.
Is easily inserted into the spacer.

Then, a recess 10g is provided in a portion of the support portion 10d located on the opposite side of the pipe insertion opening 10f,
The capillary tube 7 connected to the outer periphery of the suction pipe 6 in a convex shape is housed in the recess 10g.

The suction pipe 6 is inserted from the opening 10a of the spacer 10 through the pipe insertion port 10f of the support portion 10d, and the position of the capillary tube 7 is set to the recess 10.
It is attached so as to be housed in g, or is attached so as to come to the position of the pipe insertion port 10f, and is fitted so that the outer circumference of the suction pipe 6 is in close contact with the inner circumference of the support portion 10d.

By providing the spacer 10 with the recess 10g for accommodating the capillary tube 7,
The capillary tube 7 which is convexly connected to the outer circumference of the suction pipe 6 is accommodated in the recess 10g, and the degree of freedom in mounting at the time of assembly is increased, and the spacer 10 and the suction pipe 6 are brought into close contact with each other to ensure complete fixing. become able to.

Further, the outer peripheral portion 1 is attached to the spacer 10.
0b, the inner peripheral portion 10c, and the support portion 10d are provided with the holes 10e through which the foamed heat insulating material 3 escapes, so that the foamed heat insulating material 3 passes through the hole 10e without impairing the fluidity. The heat insulating material 3 is filled to improve the heat insulating performance. In addition, the spacer 10 has a circular outer peripheral portion 1
Since it is formed in 0b, it is not caught by the spacer 10 when the wiring 8 and other parts are arranged, and the assemblability can be improved.

The outer peripheral portion 10b of the spacer 10 is
A cutout portion 10h is provided in a part other than the opening portion 10a,
Since the wiring 8 can be held in the cutout portion 10h, the wiring 8 does not move due to the foaming pressure of the foam heat insulating material 3 without adding a component, and the foam heat insulating material 3 passes through and is fluidized. The filling of the foamed heat insulating material 3 is carried out without impeding the heat insulation and the heat insulating performance is improved.

Further, as shown in FIG.
By setting the inner diameter of d to be the combined size of the outer diameter of the suction tube 6 and the outer diameter of the capillary tube 7, it is possible to determine which of the capillary tubes 7 is connected to the outer circumference of the suction tube 6 in a convex shape. It will fit even in the position, and the degree of freedom in mounting during assembly will be further improved.

With the above structure, the spacer 10 includes the support portion 10d for supporting the suction pipe 6 and the capillary tube 7, and the support portion 1 on the outer periphery of the support portion 10d.
0d and the back plate 1a or the inner box 2 and an outer peripheral portion 10b having a size that secures an interval equal to or more than a set interval, and the hole 10e through which the foamed heat insulating material 3 comes out. The degree of freedom of attachment is increased, and the suction pipe 6 can be completely fixed, and it is possible to eliminate the problem that the spacer 10 may be blown by the foaming pressure when the foam heat insulating material 3 is filled. Also, the spacer 1
By providing the cutout portion 10h on the outer peripheral portion 10b of 0, it is possible to hold the wiring 8 without adding any parts, and the wiring 8 does not move due to the foaming pressure of the foam heat insulating material 3, It is possible to eliminate the problem that the foamed heat insulating material 3 may pass and hinder the fluidity.

[0028]

As described above, according to the present invention, the heat insulation performance is not impaired, the inner box surface does not condense, and the outer box does not sweat.
A pipe holding member for an electric refrigerator provided with a spacer for holding pipes and wirings embedded between an outer box and an inner box.

[Brief description of drawings]

FIG. 1 is a side sectional view showing a schematic configuration of a conventional example and a refrigerator according to the present invention.

FIG. 2 is a sectional view (A) showing an embodiment of a spacer for fixing a pipe according to the present invention and a side sectional view (B) corresponding to AA in FIG.

FIG. 3 is a sectional view (A) showing another embodiment of the spacer for fixing a pipe according to the present invention and a side sectional view (B) corresponding to AA in FIG.

FIG. 4 is sectional views (A) to (E) showing a pipe fixing component according to a conventional example.

[Explanation of symbols]

1 outer box 1a Back plate 2 inner box 3 foam insulation 4 compressor 5 evaporator 6 Inhalation tube 7 Capillary tube 8 wiring 9 tapes 10 Spacer 10a opening 10b outer circumference 10c inner circumference 10d support 10e hole 10f Piping insertion port 10g recess 10h notch 10i rib 11 Fixture

Claims (6)

[Claims] 1. A pipe for an electric refrigerator in which an inner box having a suction tube and a capillary tube connected in parallel to the outer circumference of the suction tube in advance and wiring, etc. is inserted into the outer box, and a foam insulation material is filled between both boxes. In the holding member, a support portion that supports the suction pipe, and an outer periphery of the support portion, the support portion and the outer box or the inner box is secured a distance equal to or more than a predetermined distance, and the suction pipe is inserted. A spacer including an outer peripheral portion having an opening, and a rib connecting the support portion and the outer peripheral portion at a constant interval so as to form a hole through which the foamed heat insulating material escapes between the outer peripheral portion and the support portion. A pipe holding member for an electric refrigerator, comprising: 2. The pipe holding member for an electric refrigerator according to claim 1, wherein the pipe insertion port of the support portion is provided in an inverted V shape. 3. The pipe holding member for an electric refrigerator according to claim 1, wherein the pipe insertion opening and the outer peripheral portion are formed so as not to come into contact with each other. 4. The support portion is provided with a recess for accommodating the capillary tube.
A pipe holding member for an electric refrigerator according to claim 3. 5. The pipe holding member for an electric refrigerator according to claim 1, wherein a notch is provided in a part of the outer peripheral portion of the spacer other than the opening. 6. The pipe holding member for an electric refrigerator according to claim 4, wherein an inner diameter of the support portion is a size obtained by combining an outer diameter of the suction pipe and an outer diameter of the capillary tube.