JPH1163565A - Outdoor heat insulated piping box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve weather ability and attain a preferential connection between an outdoor piping of an outdoor device and an indoor piping of an indoor device for air conditioner by a method wherein a main body of box and/or a lid is formed with a pipe insertion hole, a pipe connecting means is arranged within the main body of the box, a weather-tight film is laminated on the main body of the box and the outer surface of the lid. SOLUTION: A heat-insulated pipe box 4 is made of foamed synthetic resin and this is comprised of a box main body 5 and a lid 6. A pair of pipe insertion holes 8, 8 are passed through a side wall 7 of the box main body 5. Then, the outdoor pipe and the indoor pipe can be connected through headers 11, 11. In this case, a weather-tight film is adhered with adhesive agent to the outer surface of the box main body 5 and the lid 6 at the heat-insulated pipe box 4 made of foamed synthetic resin as well as a cap 16 of the lid 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outdoor heat-insulated piping box for connecting an outdoor unit for air conditioning and an indoor unit to a pipe outdoors, and more particularly, to preventing an occurrence of dew condensation at a pipe connection portion. The present invention relates to a technique for greatly improving the appearance and workability, and particularly for enhancing the weather resistance and maintaining the heat insulating and dew condensation preventing functions for many months.

[0002]

2. Description of the Related Art Conventionally, in an air conditioning pipe for connecting an outdoor unit for air conditioning and an indoor unit to a pipe outdoors, an outdoor pipe and an indoor pipe are connected with a joint or the like outdoors, and a heat insulating material is formed in a pipe shape. It is processed and covered according to, and taped from above.

[0003]

However, in such taping, a sufficient airtight state cannot be obtained, and the temperature difference is caused by the temperature difference at the connection point between the outdoor piping and the indoor piping where the temperature difference is sufficiently generated. As a result, dew condensation occurs, and water droplets infiltrate during taping, deteriorating the adhesive function of the taping, causing the taping location to be substantially destroyed early and impairing the heat insulation at this location.

[0004] Furthermore, taping is difficult to perform and the appearance is poor. Particularly, when connecting a pipe between one outdoor unit and a plurality of indoor units, the above-mentioned problem is further increased. Is remarkable. Therefore, it is conceivable to use a piping box made of a synthetic resin foam. However, a piping box made of a synthetic resin foam has poor weather resistance, and a general-purpose resin is airtight due to cracking in about 5 years. In addition, the heat insulation deteriorates, and the internal piping cannot be sufficiently protected.

[0005] The present invention has been made in view of such a problem, and aims to provide a synthetic resin foam having excellent heat insulation and airtightness, easy production, and low cost. It is an object of the present invention to provide an outdoor heat-insulated piping box which remarkably enhances weather resistance while making good use of the advantages and is advantageous for connecting an outdoor piping of an outdoor unit for air conditioning and an indoor piping of an indoor unit.

[0006]

According to the first aspect of the present invention, there is provided an outdoor insulated piping box installed outdoors.
A box body 5 made of a synthetic resin foam and a lid 6, a pipe insertion hole 8 is formed in the box body 5 and / or the lid 6, and a pipe connecting means P is provided in the box body 5; The weather resistant film F is laminated on the outer surfaces of the main body 5 and the lid 6.

In the invention of claim 2, the pipe connecting means P connects the outdoor pipe 9 of the outdoor unit 1 for air conditioning with the indoor pipe 10 of the indoor unit 2. is there. In the configuration of claim 1, the pipe connection is made by the pipe connecting means P in the outdoor type heat-insulated piping box composed of the box body 5 and the lid 6 made of synthetic resin foam. The outside air temperature is not affected, sufficient heat insulation can be obtained with the box body 5 and the lid 6 made of synthetic resin foam, and dew condensation can be prevented from occurring at the connection portion. Although the appearance can be improved by the above, the weather resistant film F is laminated on the outer surfaces of the box body 5 and the lid 6 to prevent the problem of low weather resistance made of synthetic resin foam, The goodness of the thermal insulation piping box can be maintained for a long time.

[0008] In the structure of the second aspect, in addition to the effect of the first aspect, it is advantageous for an air conditioning pipe.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. 1 and 2 show exploded perspective views, FIG. 3 shows a perspective view in which headers 11 and 11 are incorporated, and FIG. 4 is an explanatory view of a piping system. In the present embodiment, a total of four indoor units 2... Installed in four rooms are connected to one outdoor unit 1, and air conditioning is performed by each indoor unit 2. The number of the indoor units 2 can be appropriately changed, and the form of the indoor units 2 can be changed to a floor heater or the like. The outdoor unit 1 uses a well-known gas absorption chiller / heater. In cooling, it utilizes the heat of vaporization when water evaporates, creates cold water of about 7 ° C., and sends it to the indoor unit 2. At the time of heating, the circulating water is heated to about 60 ° C. with steam generated by heating the lithium bromide liquid and sent to the indoor unit 2.

The heat-insulating piping box 4 for housing a connection for connecting the outdoor piping 9 from the outdoor unit 1 and the indoor piping 10 from the indoor unit 2 outdoors is made of synthetic resin foam.
It comprises a box body 5 and a lid 6. The side wall 7 of the box body 5 penetrates a pair of pipe insertion holes 8, 8. At the bottom of the box body 5, a header installation member 12 made of synthetic resin foam is laid. A plurality of holding portions 14 project from the header installation member 12. The header installation member 12 is formed by hot-pressing a synthetic resin foam sheet. The header installation member 12 is the box body 5
It may be formed integrally with the substrate.

Thus, one end of the pair of headers 11 made of a metal pipe is inserted through the pipe insertion holes 8 so that the header 11 can be held between the holding portions 14. The pair of headers 11 are for supplying and returning cold and hot water from the outdoor unit 1, and each header 11 is formed with four branch ports 24. Are connected to the pipe.

The header 11 is formed by brazing a copper pipe 17 with a branch port member 18 made of brass and forming a branch port 24. Saddle 19 has holding pieces 20 at both ends in a substantially U shape.
The headers 11 and 11 held side by side by the header installation member 12 are held down by the holding portions 20 and 20 of the saddle 19, and the screw 21 is held in the saddle 19.
Through the header installation member 12 and the bottom of the box body 5, and screwed into a mounting table (not shown) such as a wooden for mounting the heat-insulating piping box 4,
The headers 11 and 11 can be fixed to the box body 5.

The holding piece 20 of the saddle 19 is covered with a synthetic resin cap 23 having the same thickness as the holding piece 20. When the saddle 19 made of iron plate holds the header 11 using the copper pipe 17, By avoiding direct contact between the dissimilar metal plates, and by interposing a synthetic resin cap 23 between the holding piece 20 and the copper pipe 17, it is possible to avoid electrolytic corrosion caused by water entering between dissimilar metal plates. ing.

An outdoor pipe 9, 9 from the outdoor unit 1 is connected to an end of a pair of headers 11 protruding outside the box main body 5, and a branch port 24 of the pair of headers 11 is connected to a plug serving as a joint. 25, and a spring fitting 29
The pair of plugs 25, 25 are attached while maintaining the sealing property.
0 is connected, so that the outdoor pipes 9, 9 and the indoor pipes 10, 10 can be connected via the headers 11, 11. A plug 30 is provided at the branch port 24 to which the indoor pipe 10 is not connected.
Is fitted. Thus, the outdoor piping 9 and the indoor piping 10
Are collectively referred to as tube connecting means P.

A fitting jaw 15 having a considerable thickness is formed on the back surface of the lid 6, and the box body 5 is hermetically sealed by fitting the fitting flange 15 into the opening of the box body 5. So that it can be closed. A plurality of pipe insertion holes 8 penetrate through the lid 6 including the fitting jaws 15.
... are formed. The cut-out body obtained by penetrating the pipe insertion hole 8 is fitted into the pipe insertion hole 8 as a cap 16 so that the unnecessary pipe insertion hole 8 is closed.

When the indoor pipes 10 are connected, they are inserted into the pipe insertion holes 8 of the lid 6 in advance. On the inner surface of the box body 5 made of synthetic resin foam, there is formed an inner surface plate 26 which is lower in foaming and harder than that of the box body 5. Then, the header 11 is connected to the pipe insertion hole 8.
When the heat pipe 13 is inserted into the box main body 5, the seal pipe 27 made of a synthetic resin foam, which becomes the heat retaining pipe 13, is inserted through the pipe insertion hole 8, and the header 11 is inserted through the seal pipe 27. Can be strongly compressed by the inner surface plate 26 (see FIG. 7), so that airtightness and watertightness at the insertion portion of the header 11 can be sufficiently achieved. Further, the indoor pipe 10 is provided with a heat insulating tube 13 made of a synthetic resin foam, and the heat insulating tube 13 is also sufficiently provided by a hard inner plate 26 formed on the inner surface of the fitting jaw 15 of the lid 6. To increase the airtightness and watertightness of the pipe insertion hole 8 of the indoor pipe 10.

As described above, the outdoor piping 9 is attached to the header 11.
Is connected, the indoor pipe 10 from the indoor unit 2 is connected to the branch port 24 of the header 11 airtightly introduced into the box body 5 made of synthetic resin foam, and the lid 6 is fitted to the box body 5. Thus, the outdoor piping 9 and the indoor piping 10 can be connected to each other while being cut off from the outside air via the header 11 in the box body 5, and the header 11 is not affected by the outside air temperature. It is possible to prevent condensation from forming on the header 11. In this case, the indoor pipes 10, 10 are inserted in advance through the pipe insertion holes 8, 8 of the lid 6,
The indoor pipes 10, 10 are connected to the branch ports 24, 24 of the pair of headers 11, 11, and then the lid 6 can be fitted into the opening of the box body 5, so that the workability can be further improved. . Moreover, the inner surface side of the box body 5 of the pipe insertion hole 8 is harder than the outer surface side, and the inner surface side of the box body 5 of the synthetic resin foam heat insulating tube 13 inserted into the pipe insertion hole 8 is strongly. It is possible to maintain the airtightness with the heat retaining tube 13 through which the pipe insertion hole 8 is inserted.

Here, the outer surfaces of the box body 5 and the lid 6 of the heat insulating piping box 4 made of synthetic resin foam are
The weatherproof film F including the cap 16 of the lid 6 is adhered with an adhesive. As the weather-resistant film F, a fluorine-based resin film such as polytetrafluoroethylene resin is preferable, but other resin films may be used.

When the weather-resistant film F is laminated on the outer surfaces of the box body 5 and the lid 6, the box body 5 and the lid 6 may be integrally molded and laminated at the time of molding. As described above, pipe connection is made by the pipe connecting means P in the outdoor heat-insulated piping box A composed of the box body 5 made of synthetic resin foam and the lid 6, and the connection location is set to the outside air temperature. Is not affected, sufficient heat insulating properties can be obtained with the box body 5 and the lid 6 made of synthetic resin foam, and dew condensation can be prevented from occurring at the connection portion. Can be increased. Further, the weather-resistant film F is laminated on the outer surfaces of the box body 5 and the lid 6, so that the good quality of the synthetic resin foam insulating pipe box 4 can be maintained for a long period of time.

[0020]

According to the first aspect of the present invention, there is provided an outdoor heat-insulated piping box installed outdoors, comprising a box body made of a synthetic resin foam and a lid, and a box body 5 provided.
And / or a pipe insertion hole is formed in the lid, a pipe connecting means is provided in the box main body, and a weather-resistant film is laminated on the outer surfaces of the box main body and the lid. The pipe is connected by the pipe connecting means in the outdoor type heat-insulated pipe box composed of the lid and the outside. The connection point is not affected by the outside temperature, and the box body and the lid made of synthetic resin foam are not affected. The body can provide sufficient heat insulation, prevent condensation from forming at the connection, and enhance the appearance compared to taping means. There is an advantage that the film is laminated to prevent the problem of low weather resistance made of synthetic resin foam, and the goodness of the heat-insulating piping box made of synthetic resin foam can be maintained for a long time.

According to the second aspect of the present invention, the pipe connecting means connects the outdoor pipe of the outdoor unit for air conditioning and the indoor pipe of the indoor unit. This is advantageous for piping.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention and is an exploded perspective view of a heat insulating piping box.

FIG. 2 is a detailed exploded perspective view.

FIG. 3A is a perspective view of a box body with a lid removed.
(B) is a perspective view of an outdoor pipe, and (c) is a perspective view of an indoor pipe.

FIG. 4 is an explanatory diagram showing the entire piping system.

FIG. 5 is an exploded perspective view showing a header, a plug, and a mounting bracket.

FIG. 6 is a side view in which a plug is attached to a header.

FIG. 7 is a partial sectional view.

[Explanation of symbols]

 5 Box body 6 Lid 8 Piping insertion hole F Weatherproof film P Pipe connection means

Claims (2)

[Claims] An outdoor heat-insulated piping box installed outdoors, comprising a box body and a lid made of a synthetic resin foam, wherein a pipe insertion hole is formed in the box body and / or the lid. An outdoor heat-insulated piping box, wherein a pipe connecting means is provided in the main body, and a weather-resistant film is laminated on outer surfaces of a box body and a lid. 2. The outdoor heat insulating piping box according to claim 1, wherein the pipe connecting means connects the outdoor piping of the outdoor unit for air conditioning and the indoor piping of the indoor unit.