JPH07103636A - Radiation pipe disposing structure for refrigerator - Google Patents

Abstract

PURPOSE:To obviate the need for a connection pipe, reduce the number of soldering spots, reduce the cost and improve the workability by a method wherein a single pipe is continuously bent into a U-shape, and bent into a L-shape in required spots, and extended along the back and one side or both side of a refrigerator. CONSTITUTION:A radiation pipe 10 is continuously bent into U-shapes on the back 4 of a refrigerator. A leftwardmost straight pipe part 12a on the back 4 is bent in the same plane and transferred to a horizontal part 14. The horizontal part 14 is bent at an intermediate part 16 into an L-shape in a direction upward from the paper of the diagram, i.e., at right angles. The horizontal part 14 is further bent upward and forms a leftwardmost straight part 12b of a right side 6 of the refrigerator. In following, the pipe is continuously bent into U-shapes in a similar manner described at the back. Both sides 20 and 22 of the radiation pipe 10 are connected to a refrigerant piping running around a compressor and a vaporizer.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat dissipating pipe arrangement structure for a refrigerator.

[0002]

2. Description of the Related Art FIG. 9 shows a conventional heat dissipating pipe arrangement structure in a refrigerator. FIG. 9 is a schematic view of the refrigerator as seen from the front side. This heat radiation pipe is configured by connecting two pipes. That is, a gate-shaped first pipe 1 extending from the back surface 4 of the refrigerator to both side surfaces 5 and 6 and a second pipe 2 meandering in a U-shape along the back surface 4 at both ends respectively. It goes out of the cabinet and is connected by a U-shaped connecting pipe 3. At that time, the connection pipe 3 is connected by brazing at a position X in the drawing.

[0003]

As described above, since the connection pipe 3 is required in addition to the pipes 1 and 2, and brazing work is required, the number of parts is large and the cost is high. Installation work is troublesome. Further, the heat dissipation pipe is interrupted at the location of the connection pipe, so that the heat dissipation effect is significantly inferior.

The present invention integrates a heat radiation pipe in order to solve such a problem.

[0005]

According to another aspect of the present invention, there is provided a heat dissipating pipe arranging structure for a refrigerator, wherein one pipe is continuously bent into a U shape, and a required portion is bent into an L shape so that a rear surface of the refrigerator is formed. And it is attached to one side or both sides.

In the second aspect of the present invention, the straight pipe portion of the pipe bent into a U-shape is crank-bent in the plane to which the U-shape belongs, and the middle of the crank-bend portion is in a direction orthogonal to the plane. It is L-shaped.

In the third aspect, the pipe is bent into a U shape with the same amplitude.

In the present invention, the pipe is bent so that the amplitude of the pipe is small on the rear surface of the refrigerator and larger on the side surface.

[0009]

According to the first aspect of the invention, since the heat radiating pipe is composed of one continuous pipe, no connecting pipe is required and the number of brazing points is reduced, so that the cost is low and the workability is good. Further, since the connection pipe is not brazed, there is no invalid heat dissipation portion, and if the heat dissipation pipe has the same development length, the heat dissipation effect is improved.

According to the second aspect, the heat radiation pipe can be easily bent into an L shape.

According to the heat dissipating pipe of claim 3, a large amount of pipes meandered in one plane by a device such as a bender are made in advance, and the pipes are bent according to the size of the refrigerator cabinet. As a result, a desired heat dissipation pipe can be obtained. In particular, by adopting the bending method according to the second aspect, it is possible to obtain a heat dissipation pipe having a vertical step between the back surface and the side surface.

According to the present invention, the heat radiating pipe is arranged longer in the vertical direction on the side surface than on the rear surface of the refrigerator, and a larger heat radiating effect can be obtained on the side surface. In that case, it is possible to arrange the part along the back surface only above and to arrange the part along the side surface long from above to below by interposing the above-mentioned crank bending. In, it is possible to sufficiently enhance the heat dissipation effect.

[0013]

1 shows an embodiment of the present invention. Reference numeral 10 denotes the entire heat radiating pipe composed of one pipe. This heat dissipation pipe 10 is bent into a continuous U-shape on the rear surface 4 of the refrigerator, and the leftmost straight pipe portion 12 on the rear surface 4 is formed.
a, the horizontal portion 14 is bent in the same plane.
I'm hungry. The horizontal portion 14 is bent at an intermediate portion 16 in an L-shape, that is, at a right angle, in the front side direction of the drawing sheet. The horizontal portion 14 is further bent upward to form the leftmost straight pipe portion 12b of the right side surface 6 of the refrigerator.
Then, after that, it is continuously bent in a U-shape as in the back surface. Although not shown, 20 and 22 are both ends of the heat radiating pipe 10, and are connected to green pipes surrounding a compressor, an evaporator, and the like.

In this embodiment, the amplitude of the heat radiating pipe 10 bent in a U shape is the same on the back surface 4 and the right side surface 6 of the refrigerator, but the portion 11 along the back surface 4 of the heat radiating pipe 10 is located on the right side surface 6. It is located above the portion 13 along the line. In this way, as shown in the drawing, the heat radiation pipe can be arranged avoiding the machine room 7 at the lower part on the rear side of the refrigerator.

The manufacturing process of the heat dissipation pipe 10 of FIG. 1 is shown in FIGS. First, as shown in FIG. 2, the pipe 10 is continuously bent in a U shape with the same amplitude in one plane by a bender. After that, as shown in FIG. 3, the rightmost straight pipe portion 12 of the pipe portion 11 is bent horizontally in the plane, and a portion below the positive portion 15 is formed into the first leg portion. The horizontal portion 14 is formed on the right side of the portion 15. Further, the tip of the horizontal portion 14 is bent upward, and the portion above the bent portion 17 is defined as the second leg portion 12b. In this case, the two leg portions 12a and 12b extending in the vertical direction and the horizontal portion 14
Has a crank shape as a whole, and such a bending method is called crank bending.

Next, the right side of the middle portion 16 of the horizontal portion 14 is bent into an L shape so as to face the front side of the paper surface, and the portion 13 is oriented in a direction perpendicular to the plane to which the portion 11 belongs. As a result, the portion 13 is formed in the form of a paragraph below the portion 11 by half the length of the horizontal portion 14.

FIG. 4 shows a second embodiment of the present invention. In this case, the upper and lower ends of the meandering heat dissipation pipe are located at substantially the same height on the back surface 4 and the right side surface 6 of the refrigerator.

FIG. 5 shows a third embodiment of the present invention, in which a heat radiating pipe 10 extends continuously over the left side surface 5, rear surface 4 and right side surface 6 of the refrigerator. At that time, the left and right side surfaces 5,
6 meanders in a continuous U-shape, but the back surface 4 bends in a chevron shape.

In the fourth embodiment shown in FIG. 6, the heat radiating pipe 10 extends continuously over the three side surfaces 5, 6 and the rear surface 4 in the same manner as in the embodiment shown in the previous figure. Also meanders in a U shape. The transition portion 24 from the left side surface 5 to the rear surface 4 and the transition portion 34 from the rear surface 4 to the right side surface 6 are bent as in the case of FIG.

In the above embodiments, the U-shaped meandering pipes have the same amplitude, but instead of this, the amplitude may be different between the portion along the back surface and the portion along the side surface of the refrigerator. Good. For example, in the embodiment shown in FIG. 7, the left part 11 has a small amplitude and the right part 13 has a larger amplitude. In this case, the bent portions below the pipe are aligned at the same height. Therefore, the right pipe portion 12 is bent by the crank as described above and then L-shaped, so that the right side portion 13 is located below the left side portion 11. By arranging the left side portion 11 on the back side of the refrigerator and the right side portion 13 on the right side surface of the refrigerator, a space can be held below the pipe on the back side, so avoid the machine room in the lower rear portion of the refrigerator. You can In this case, in the right side portion 13 along the right side surface, the pipe extends long from top to bottom, so that the side surface has a large heat dissipation effect.

The embodiment of FIG. 8 is a modification of that of FIG. 7, and the amplitudes in the left side portion 11 and the right side portion 13 are the same as in the case of FIG. That is, the amplitude of the right side portion 13 is larger than that of the left side portion 11. However, in this case, the lower bent portion of the pipe has the right side portion 13 above the left side portion 11. Therefore, when the straight pipe part 12 is crank-bent and L-shaped bent, the lower ends of both parts are brought to the same height.

As described above, in each of the above-described embodiments, a part of the heat dissipation pipe which is bent in a U shape continuously is bent into an L shape so that the back surface and the side surface or the back surface and the both side surfaces are continuously connected. It is possible to obtain an integrated heat dissipating pipe that extends vertically.

Such integration eliminates the need for conventional connecting pipes and brazing work, improves workability of attachment and reduces costs.

Further, by integrating the heat radiation pipe, the ineffective portion of the heat radiation portion can be reduced, so that the amount of heat radiation increases when the development length is the same.

[0025]

According to the heat radiating pipe of the first aspect, the number of parts is small, the workability is improved, the cost is reduced, and the heat radiating effect is also improved.

In the heat radiating pipe of the second aspect, the straight pipe portion of the heat radiating pipe can be bent to easily form a portion that transitions from the back surface to one side surface or a portion that transitions from the back surface to both side surfaces. .

Further, in the heat dissipating pipe of claim 3, first, a bender is used to form a U-shaped pipe meandering to the same amplitude, and then a part of the straight pipe portion is bent into an L-shape. An integrated heat dissipation pipe extending from the back surface to the side surface can be easily constructed, and in that case, if the bending is performed by the method of claim 2, the heat dissipation pipe is arranged as a paragraph on the side surface rather than on the back surface. Next to
The heat radiating pipe can be arranged avoiding the machine room on the back side.

According to the present invention, the heat radiation effect on the side surface is greater than that on the back surface, and further, by bending the crank, the pipe can be positioned above the machine room on the back surface while avoiding the machine room.

[Brief description of drawings]

FIG. 1 is a schematic view showing an embodiment of the present invention.

FIG. 2 is a plan view showing a first stage in manufacturing the heat dissipation pipe of FIG.

FIG. 3 is a plan view showing a step following the previous figure.

FIG. 4 is a schematic view showing another embodiment.

FIG. 5 is a schematic view showing still another embodiment.

FIG. 6 is a schematic view showing still another embodiment.

FIG. 7 is a development view showing still another embodiment.

FIG. 8 is a development view showing still another embodiment.

FIG. 9 is a schematic view showing a conventional heat dissipating pipe arrangement structure.

[Explanation of symbols]

 4 Rear side of refrigerator 5 Left side of refrigerator 6 Right side of refrigerator 10 Heat dissipation pipe

Claims (4)

[Claims] 1. Heat dissipation in a refrigerator, characterized in that one pipe is continuously bent into a U shape, and a required portion is bent into an L shape so as to be fitted to the back surface and one side surface or both side surfaces of the refrigerator. Pipe arrangement structure. 2. A straight pipe portion of the pipe bent in a U shape is crank-bent in a plane to which the U-shape belongs, and an intermediate portion of the crank bent portion is L-shaped in a direction orthogonal to the plane. The heat dissipating pipe arrangement structure in the refrigerator according to claim 1, wherein. 3. The heat dissipating pipe arrangement structure according to claim 1, wherein the pipe is bent into a U shape with the same amplitude. 4. The heat dissipating pipe arrangement structure according to claim 1, wherein the amplitude of the pipe is small on the back surface of the refrigerator and larger on the side surface thereof.