JP2014181860A - Heat insulation structure of air conditioner outdoor unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heat insulation structure of an air conditioner outdoor unit that has improved heat insulation efficiency of the outdoor unit, that can be easily attached to an already installed outdoor unit, and that exhibits the superior beauty.SOLUTION: An upper surface, two side surfaces, and a front surface of an air conditioner outdoor unit are surrounded by a heat insulating case 1 formed of a heat insulating plate material. The plate material is formed by mixing pulverized powdered garnet with an inorganic binder mainly containing sodium silicate and potassium silicate, filling the mixture into a molding frame, burning and forming the mixture, and forming the resultant mixture into a plate shape. A metal plate or the like is used for reinforcement as needed.

Description

  The present invention relates to a heat insulating structure for an outdoor unit of an air conditioner installed in a building such as a house, a factory, or a warehouse.

  As an air conditioner installed in a building such as a house, factory, warehouse, etc., a separate type that circulates a heat medium between an indoor unit placed indoors and an outdoor unit placed outdoors is common. . The outdoor unit cools the room, absorbs heat, dissipates the returned heat medium in summer, dissipates the vaporized component, and sends it back to the indoor unit. The heating medium is reheated and sent back to the indoor unit. For this reason, the outdoor unit is compactly housed in a box-shaped casing with heat exchangers with fins and a blower that sends air to the regenerators, condensers, evaporators, absorbers, and other devices that perform heating and cooling. Has been.

  The outdoor unit is installed outside the building. Therefore, in the summer season, the temperature inside the casing rises considerably due to direct sunlight, and in the winter season, it is affected by the surrounding environment, such as the temperature inside the casing being lowered due to snow. There is a problem that it decreases.

  In Patent Document 1, as a sunshade device for an outdoor unit of an air conditioner, direct sunlight is not applied to the front of the outdoor unit by stretching a sheet material having air permeability between two upper and lower arms composed of square pipes. It is described to do so. By changing the protruding length of the upper and lower arms and opening the lower part with the seat inclined to the front of the outdoor unit, it does not block the wind of the heat exchanger blower and has an awning effect I am doing so.

  Patent Document 2 describes an awning roof of an air conditioner outdoor unit in which support brackets are attached to the top and side surfaces of the outdoor unit and the mounting angle is variable. By making the mounting angle variable, the roof angle corresponding to the amount of snow in the area can be set.

JP 2013-19593 A Japanese Patent Laid-Open No. 11-159809

  As described above, various proposals have been made to improve the thermal efficiency by providing a sunshade on the outdoor unit. However, it is insufficient as a measure for improving the thermal efficiency by simply avoiding direct sunlight or preventing snow accumulation. In addition, the installation of the sunshade hinders the passage around the outdoor unit, and the mounting structure such as drilling holes in the main unit of the outdoor unit requires a high level of technology and may cause a failure.

  It is an object of the present invention to improve the heat insulation efficiency of an outdoor unit, and to realize a heat insulation structure of an air conditioner outdoor unit that can be easily attached to an existing outdoor unit and has a beautiful appearance.

  The present invention according to claim 1 is a heat insulating structure for an air conditioner outdoor unit, wherein an upper surface, both side surfaces, and a front surface of the air conditioner outdoor unit are surrounded by a heat insulating plate.

  According to the second aspect of the present invention, the heat-insulating plate material is formed by mixing pulverized garnet and an inorganic binder mainly composed of sodium silicate and potassium silicate, filling the mold, and firing and foaming. The heat insulation structure for an air conditioner outdoor unit according to claim 1, wherein the air conditioner outdoor unit is formed into a plate shape.

  According to a third aspect of the present invention, the heat insulating plate material surrounds the outdoor unit as a heat insulating case assembled by fitting into the upper surface and both side surfaces excluding the back and bottom surfaces of the outdoor unit and the outside of the front surface. It is the heat insulation structure of the air conditioner outdoor unit according to claim 1 or 2.

  The invention according to claim 4 is characterized in that the heat insulating plate material is bonded to the upper surface and both side surfaces excluding the rear surface and the bottom surface of the casing of the outdoor unit and the inside or outside of the front surface. Item 3. A heat insulation structure for an air conditioner outdoor unit according to item 1 or 2.

  According to the present invention, the temperature rise of the outdoor unit in the summer and the temperature drop in the winter can be suppressed, so that the thermal efficiency of the air conditioner is improved and the aesthetics of the outdoor unit that has been conventionally considered as an annoying thing can be achieved. In addition, by enclosing the outdoor unit with a plate material, noise is reduced and the environment around the building is improved.

It is a perspective view which shows the heat insulation case of this invention Example. It is a perspective view which shows the front board in this invention Example. It is a perspective view which similarly shows the front board in this invention Example. It is a perspective view which shows the two side plates in this invention Example. It is a perspective view which similarly shows two side plates in this invention Example. It is a perspective view which shows the roof in this invention Example. It is a perspective view which similarly shows the other roof in this invention Example. It is a perspective view which shows the other roof similarly in the Example of this invention. It is a fragmentary sectional perspective view which shows the board | plate material of this invention Example. It is a fragmentary sectional perspective view which similarly shows the other board | plate material of an Example of this invention. It is a perspective view which shows an example of the air conditioner outdoor unit which concerns on this invention. It is a perspective view which shows the state which attached the heat insulation case of the Example to the outdoor unit of FIG.

  In JP-A-2004-69060, a pulverized garnet and an inorganic binder mainly composed of sodium silicate and potassium silicate are mixed and filled in a mold, fired, foamed and molded into a plate shape. Insulation is described. This heat insulating material is not only excellent in heat insulating properties and fire resistance, but also has minute air gaps inside, has a large contact surface area with gas, and has excellent air permeability, and can also be used as a filter. .

  The heat insulating plate material used in the present invention is not particularly limited to this, but since this plate material has both heat insulating properties and air permeability, it is most preferable to use this plate material.

  Preferred embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a perspective view showing an example of a heat insulating case 1 assembled by fitting. This heat insulation case 1 is composed of four plate members, a front plate 11 corresponding to the front of the outdoor unit, side plates 12 and 13 on both sides thereof, and a roof 15 on the upper surface, and plate members corresponding to the back and bottom surfaces of the outdoor unit. There is no.

  Each plate is made by mixing pulverized garnet and an inorganic binder mainly composed of sodium silicate and potassium silicate, filling them into a mold, firing and foaming them, and forming the plate into a thin perforated metal. The structure is backed with a plate, and the structure will be described in detail later with reference to FIG.

  FIG. 2 is a perspective view of the front plate 11 as viewed from the outside, and a cut hole (through hole) 111 is provided at a position corresponding to the fan of the outdoor unit. FIG. 3 is a perspective view of the same front plate 11 as viewed from the inside.

  4 is a perspective view of the two side plates 12 and 13 as seen from the front side, and FIG. 5 is a perspective view of the two side plates 12 and 13 as seen from the back side. The two side plates 12 and 13 are connected to each other by an opening prevention member 14 on the back side, and the opening prevention member 14 is pinned to the side plates 12 and 13 on both sides. Positioning seats 121 and 131 are provided below the side plates 12 and 13, and a pin or the like is inserted for positioning.

  FIG. 6 is a perspective view showing a first example 15a of a roof, FIG. 7 is a perspective view showing a second example 15b, and FIG. 8 is a perspective view showing a third example 15c. Since both are perspective views from the outside, a perforated metal plate is visible, but a heat insulating material is arranged on the back side. The thing of FIG. 6 is a saddle shape when it says a roof, FIG. 7 is a horizontal flat roof, FIG. 8 is a single flow. Various other shapes are possible. If it has a flat roof shape as shown in FIG. 7, it can be used such as arranging flower pots on it, and if it is a snowy region, one with a large gradient as shown in FIG. 8 is preferable. Each may be arbitrarily selected from the viewpoints of aesthetics and functions.

  Note that drain (condensed water) generated in the indoor unit during the cooling operation in summer is usually discharged to the outside by a hose or the like, but in the case of the present invention, if this is dripped onto the roof 15, the drainage occurs. The plate material is further cooled by heat, and the thermal efficiency is further improved.

  Next, the procedure for assembling and installing the heat insulation case will be described. The two side plates 12 and 13 shown in FIG. 4 are erected by leveling the surroundings of the outdoor unit as the installation location and placing a simple table such as a block or wood. Since the back side of the outdoor unit is connected by the opening prevention member 14, the interval is determined. A front plate 11 is placed in front of the outdoor unit. If necessary, use a simple angle bracket to support the bottom. When the four seat plates 121 and 131 including the front one or the back one are placed on the table, nails or pins are driven in to fix the lower part. Finally, cover the roof 15. Since the bent portions of the four sides of the roof 15 are placed so as to surround the front plate 11 and the side plates 12 and 13, the whole is fixed.

  As described above, since the installation of the heat insulating case of the present invention only requires assembly work around the outdoor unit, it does not require specialized skills such as making holes in the outdoor unit body or tightening bolts. .

  Although the dimensions such as the width, height, and depth of the heat insulating case may be determined according to the target outdoor unit, for example, the width is 950 mm, the height is 1000 mm, and the depth is 500 mm.

  FIG. 9 is a partial cross-sectional perspective view of a plate material constituting the heat insulation case of the embodiment. The plate material is obtained by bending the edge of the thin metal plate P and fitting the heat insulating material B inside. The metal plate P is, for example, a perforated plate in which holes having a diameter of 20 mm are formed at almost 50 mm intervals on a substantially entire surface of a zinc iron plate having a thickness of 0.8 mm. The reason why the holes are provided is to allow air or water to permeate because the heat insulating material B has air permeability, but the front and side surfaces other than the roof do not have to be opened. The heat insulating material B is, for example, a plate shape having a thickness of 20 mm.

  FIG. 10 is a partial sectional perspective view showing another embodiment of the plate material constituting the heat insulating case. Instead of the perforated plate, a metal frame F processed into a grooved steel shape having a U-shaped cross section is used, and this surrounds the periphery of the heat insulating material B to form a panel shape. Although there is an advantage that the water and air permeation surface is wider than the perforated plate, there is a risk that the plate material will hit and become dented or dirty.

  FIG. 11 is a perspective view showing an example of the outdoor unit, and FIG. 12 is a perspective view showing a state in which the heat insulation case 1 of the embodiment of the present invention is attached thereto. If you paint the surface of the board in a pleasant color or draw a pattern or illustration, the beauty of the outdoor unit will be further improved.

  Furthermore, since the board material made by foaming crushed garnet is also excellent in sound insulation, by surrounding the outdoor unit with this board material, outdoor units that have often become a problem for neighboring residents on the building rooftop, garden, etc. in recent years. Noise pollution caused by can be improved.

  As described above, the case where the heat insulating case is attached to the existing outdoor unit has been described. However, if the same heat insulating material as that of the present invention is attached to the casing of the outdoor unit at the manufacturing stage of the air conditioner, the heat insulating property is improved. Needless to say, the effects of the present invention can be obtained.

  DESCRIPTION OF SYMBOLS 1 ... Heat insulation case, 11 ... Front plate, 12, 13 ... Side plate, 14 ... Opening prevention member, 15 ... Roof, 111 ... Cut hole, 121, 131 ... Seat plate, 141 ... Pin, A ... Air conditioner outdoor unit, B ... heat insulating material, F ... frame, P ... metal plate.

Claims (4)

  A heat insulating structure for an air conditioner outdoor unit, wherein the upper surface, both side surfaces, and the front surface of the air conditioner outdoor unit are surrounded by a heat insulating plate.   The heat-insulating plate material is obtained by mixing pulverized garnet and an inorganic binder mainly composed of sodium silicate and potassium silicate, filling the mold, baking and foaming, and forming the plate. The heat insulation structure of the air conditioner outdoor unit according to claim 1.   2. The heat insulating plate material surrounds the outdoor unit as a heat insulating case assembled by fitting into the upper surface and both side surfaces excluding the back and bottom surfaces of the outdoor unit and the outside of the front surface. Or the heat insulation structure of the air conditioner outdoor unit of 2.   3. The air conditioner outdoor unit according to claim 1, wherein the heat insulating plate material is bonded to the upper surface and both side surfaces excluding the rear surface and the bottom surface of the casing of the outdoor unit and the inner side or the outer side of the front surface. Machine insulation structure.

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