JP3015668B2 - Insulation structure of refrigerant pipe of air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerant pipe heat insulating structure for an air conditioner.

[0002]

2. Description of the Related Art Conventionally, in an air conditioner having a refrigerant circuit, as shown in FIGS. 5 and 6, a refrigerant pipe 101 extending from a heat exchanger 100 is prevented from dew condensation.
01 is covered with a cylindrical heat insulating material 103,
In general, binding the end 103a of the “03” with a binding band 105 is performed.

[0003]

In this type, when the end 103a of the heat insulating material 103 is bound by one binding band 105, the end 103a expands as shown in the figure.

When the end portion 103a of the heat insulating material expands and comes into contact with an electrical box or the like disposed near the heat insulating material, dew adhering to the end portion 103a of the heat insulating material 103 passes through a cooling hole or the like of the electric device box. There is a problem of infiltration into.

Accordingly, the present invention solves the above-mentioned problems of the prior art, and provides a heat insulating structure for a refrigerant pipe of an air conditioner that can be almost securely bound so that the end of the heat insulating material does not expand. Is provided.

[0006]

Means for Solving the Problems To solve the above problems, a first invention is to cover a refrigerant pipe with a heat insulating material,
The spread prevention plate is wound around the end of the heat insulating material, and the outer periphery of the spread prevention plate is bound by a binding band.

According to a second aspect of the present invention, in an air conditioner having a heat exchanger and an electric box, a heat insulating material is coated on a refrigerant pipe of the heat exchanger located near the electric box, and an end of the heat insulating material is provided. A spread prevention plate is wound around the portion, and the outer periphery of the spread prevention plate is bound by a binding band.

According to a third aspect of the present invention, a refrigerant pipe of a heat exchanger located in the vicinity of an electrical box is coated with a heat insulating material, and an expansion preventing plate provided with two outer ribs is wound around an end of the heat insulating material.
The outer periphery of the spread prevention plate is bound by a binding band positioned between two outer ribs.

According to a fourth aspect of the present invention, the refrigerant pipe of the heat exchanger located in the vicinity of the electrical box is coated with a heat insulating material, and an expansion preventing plate provided with an inner rib at an end of the heat insulating material is wound. The outer periphery of the plate is bound by a binding band.

[0010]

According to the first aspect of the present invention, the refrigerant pipe is coated with a heat insulating material, and after the spread prevention plate is wound around the end of the heat insulating material, the outer periphery of the spread prevention plate is bound by the binding band. After that, the end of the heat insulating material is pressed by the spread prevention plate, so that the end of the heat insulating material does not spread outside.

According to the second aspect of the present invention, when the binding band having the above structure is applied to a refrigerant pipe of an air conditioner, even if an electrical box is provided near the refrigerant pipe, the end of the heat insulating material is expanded. Since the part does not spread, this end does not come into contact with the electrical box.

Therefore, even if dew forms on the heat insulating material of the refrigerant pipe, the dew does not reach the electrical box and the dew does not penetrate into the electrical box.

According to the third aspect of the present invention, the binding band is positioned between the two outer ribs, thereby preventing displacement of the binding band.

According to the fourth aspect of the present invention, the inner ribs of the spread prevention plate bite into the heat insulating material when they are bound by the binding band, so that the heat insulating material is firmly fixed.

[0015]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of an air conditioner according to an embodiment of the present invention;

In FIG. 3, reference numeral 3 denotes an air conditioner. The air conditioner 3 includes a case 4 and a front panel 11. A suction port 13 is formed in the front of the front panel 11, and a filter 15 is disposed inside the suction port 13. An outlet 17 is formed below the front panel 11, and the outlet 17 is provided with a vertical guide blade 19 and a left / right guide blade 21.

As shown in FIG. 4, the case 4 mainly includes a heat exchanger 5, a blower 7, an electrical box 9, and the like.

The heat exchanger 5 has a meandering tube 5a into which a refrigerant is introduced. As shown in FIG. 1, a refrigerant tube 201 is connected to the tube 5 a of the heat exchanger 5, and a heat insulating material 20 for preventing condensation of the refrigerant tube 201 is formed on the refrigerant tube 201.
Three are wound. The heat insulating material 203 has a cylindrical shape, and its end 203 a is bound by a binding band 205.

According to this embodiment, however, the structure is particularly characterized in that the ends 203a of the heat insulating material 203 are bound.

As described above, referring to FIG.
The heat exchanger 5 and the electrical box 9 are housed therein. These are accommodated in the right end of the case 4 in the drawing, but the space between them is very small due to space. Therefore, if the end 203a of the heat insulating material 203 seems to expand outward,
The end 203a contacts the inner surface of the electrical box 9 and the heat insulating material 2
Dew adhering to the end 203a of the electric box 03 penetrates into the electric box through the cooling holes of the electric box 9.

According to this embodiment, as shown in FIG. 1, first, the end portion 203a of the heat insulating material 203 is wound by the thin plate-like spread prevention plate 211, and thereafter, the end portion 203a of the spread prevention plate 211 is formed. The outer periphery is bound by one binding band 205. According to this, the end portion 20 of the heat insulating material 203
3a is pressed by the spread prevention plate 211,
Its spreading is reliably prevented.

As shown in FIG. 2, the spread prevention plate 211 only needs to press almost half of the outer periphery of the heat insulating material 203 on the side of the electrical equipment box 9 so that the heat insulating material does not hit the electrical equipment box 9 on the side. It has become.

Referring to FIG. 1, two outer ribs 21 extending in the circumferential direction are provided substantially in the middle of the outer periphery of spread prevention plate 211.
3 is desirably provided. According to this, by positioning the binding band 205 between the two outer ribs 213, the displacement of the binding band 205 during binding is prevented.

Further, it is desirable to provide two inner ribs 215 extending in the circumferential direction on the inner periphery of the spread preventing plate 211. This allows these inner ribs 21 to be
Since 5 penetrates into heat insulating material 203, heat insulating material 203 is strongly fixed.

In short, according to this embodiment, the heat insulating material 2
Since the spread of the end portion 203a of the electronic component box 03 is almost certainly suppressed, the end portion 203a does not come into contact with the inner surface of the electrical box 9, and even if dew adheres to the end portion 203a, the dew does not It does not penetrate the inside of the box 9.

As described above, the present invention has been described based on one embodiment, but the present invention is not limited to this embodiment.

The present invention can be used to bind the ends of the heat insulating material wound around any of the refrigerant pipes without departing from the scope of the claims, and reliably prevents the ends of the refrigerant pipe from spreading. can do.

[0028]

As is apparent from the above description, according to the first aspect, the expansion of the end of the refrigerant pipe can be reliably prevented.

According to the second aspect of the present invention, when the binding band having the above structure is applied to a refrigerant pipe of an air conditioner, even if an electrical box is present near the refrigerant pipe, the end of the expanded heat insulating material is provided. The portion does not come into contact with the electrical box, and dew attached to the end of the refrigerant pipe does not enter the electrical box.

According to the third aspect of the present invention, by positioning one binding band between the two outer ribs, the displacement of the binding band is prevented, and the end of the heat insulating material can be firmly fixed. it can.

According to the fourth aspect of the present invention, the inner ribs of the spread prevention plate bite into the heat insulating material when bound by the binding band, so that the heat insulating material is firmly fixed.

[Brief description of the drawings]

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

FIG. 2 is a sectional view of the same.

FIG. 3 is a perspective view illustrating an appearance of the air conditioner according to the embodiment of the present invention.

FIG. 4 is an exploded perspective view of the air conditioner shown in FIG.

FIG. 5 is a diagram corresponding to FIG. 1 of the related art.

FIG. 6 is a diagram corresponding to FIG. 2 of the related art.

[Explanation of symbols]

 REFERENCE SIGNS LIST 3 air conditioner 5 heat exchanger 7 blower 9 electric box 201 refrigerant pipe 203 heat insulating material 205 binding band 211 spread prevention plate 213 outer rib 215 inner rib

──────────────────────────────────────────────────続 き Continuing on the front page (72) Motomi Yamauchi 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Emiko Watanabe 2-5-2 Keihanhondori, Moriguchi-shi, Osaka No. 5 Sanyo Electric Co., Ltd. (58) Field surveyed (Int. Cl. ⁷ , DB name) F24F 1/00

Claims (4)

(57) [Claims] 1. A refrigerant characterized in that a refrigerant tube of an air conditioner is covered with a heat insulating material, an expansion preventing plate is wound around an end of the heat insulating material, and an outer periphery of the expansion preventing plate is bound by a banding band. Pipe insulation structure. 2. An air conditioner comprising a heat exchanger and an electrical box, wherein the refrigerant pipe of the heat exchanger located in the vicinity of the electrical box is covered with a heat insulating material and spreads over an end of the heat insulating material. A heat insulating structure for a refrigerant pipe of an air conditioner, wherein a prevention plate is wound and the outer periphery of the spread prevention plate is bound by a binding band. 3. An air conditioner comprising a heat exchanger and an electrical box, wherein a heat insulating material is coated on a refrigerant pipe of the heat exchanger located near the electric box, and an end of the heat insulating material is provided on the refrigerant pipe. A heat insulating structure for a refrigerant pipe of an air conditioner, wherein a spreading prevention plate provided with two outer ribs is wound, and the outer periphery of the spreading preventing plate is bound by a binding band positioned between the two outer ribs. 4. An air conditioner having a heat exchanger and an electric box, wherein a heat insulating material is coated on a refrigerant pipe of the heat exchanger located near the electric box, and an inner end is provided at an end of the heat insulating material. A refrigerant pipe heat insulating structure for an air conditioner, wherein an expansion prevention plate provided with ribs is wound, and the outer periphery of the expansion prevention plate is bound by a binding band.