JPH05133535A - Heat-exchange unit - Google Patents

Abstract

PURPOSE:To provide a heat-exchange unit which has a unit body on the inner wall surface of which heat insulating materials can be reliably stuck without any gap. CONSTITUTION:A heat-exchange unit is formed such that heat insulating materials 21 and 23 are stuck on the inner wall surface of a unit body 1, in which a heat-exchanger 5 and a blower 3 are contained, without any gap. The heat insulating materials 21 and 23 are formed of auxiliary heat insulating materials 23 arranged to corner parts 1b of the unit body 1 and main heat insulating materials 21 arranged to linear parts la for forming the corner part 1b therebetween. The auxiliary heat insulating material 23 is fitted in a rebounding manner on the end part side between the end parts of the adjoining main heat insulating materials 21.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchange unit which constitutes, for example, an air conditioner, and more particularly to a heat exchange unit in which a heat insulating material is attached to an inner wall surface of a unit body.

[0002]

2. Description of the Related Art Generally, an air conditioner of a type in which a heat exchange unit is embedded in a ceiling is known. This type has a heat exchanger, a centrifugal fan, etc. housed in the unit body that constitutes the heat exchange unit, and the inner wall surface of the unit body that constitutes the heat exchange chamber is used to insulate the inside. A heat insulating material such as foamed polyethylene is attached (for example, Japanese Patent Publication No. 63-18099).

[0003]

However, in the conventional structure, since the unit main body has a substantially rectangular shape, it is difficult to attach the heat insulating material to the corner portion without a gap. For example, as shown in FIG. 6a, when the end portions of the heat insulating material 33 are attached so as to abut at the corner portion 31 of the unit body, a gap δ is likely to occur at the abutting portion, and FIG. As shown, insulation 33
When the cut 35 is formed in the sheet and the heat insulating material 33 is attached at the corner portion 31 of the unit body so as to be bent, there is a problem that the inner thickness of the heat insulating material 33 becomes thin at the bent portion.

In any case, if the heat insulating material 33 cannot be reliably attached to the inner wall surface of the unit body, the heat insulation will be insufficient at a portion where the attachment is insufficient and the outer wall of the unit body will be subjected to the cooling operation. There is a problem that dew condensation occurs.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above-mentioned problems of the conventional technique and to provide a heat exchange unit capable of reliably attaching a heat insulating material to the inner wall surface of a unit body without leaving a gap. is there.

[0006]

In order to achieve the above-mentioned object, the present invention provides a heat exchanging unit comprising a heat exchanging unit having an inner wall surface of a unit main body in which a heat exchanger and a blower are accommodated. Is composed of a main heat insulating material that is attached to the straight portion of the unit body and an auxiliary heat insulating material that is attached to the corner portion of the unit body, and the auxiliary heat insulating material is fitted between the ends of the main heat insulating material. It is a feature.

[0007]

According to the present invention, the main heat insulating material is attached to the linear portion of the unit main body, and the auxiliary heat insulating material is fitted between the ends of the adjacent main heat insulating materials, and the auxiliary heat insulating material is the main heat insulating material. Since the elastic force of this auxiliary heat insulating material is fitted to the end side of the unit, there is no gap between the main heat insulating material and the auxiliary heat insulating material, and the heat insulating material is attached to all areas without any gaps. The body is completely insulated.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 denotes a box-shaped unit main body. Inside the unit main body 1, a centrifugal fan 3 rotating in a direction of an arrow, and a substantially quadrangular shape arranged so as to surround the centrifugal fan 3. And the heat exchanger 5 of FIG.
This figure is a plan view of the unit body 1 as viewed from the opening side, and the unit body 1 has a predetermined depth.

The unit main body 1 is formed by bending a thin steel plate, and an air passage 9 partitioned by a partition plate 7 is provided inside the unit main body 1. Further, fixtures 11 are provided on the outer walls of the four corners of the unit main body 1, and hanging bolts 13 are attached to the fixtures 11, as shown in FIG. Fastened to the ceiling. That is, the unit body 1 is generally embedded in the ceiling of the room with its opening facing downward.

Insulating materials 21 and 23 are attached to the inner wall surface of the unit body 1 to insulate the inside of the unit body 1. Two types of heat insulating materials 21 and 23 are prepared. One is the main heat insulating material 21 made of foamed polyethylene and attached to the straight portion 1a of the inner wall surface of the unit main body 1, and the other one is the unit main body 1. Is an auxiliary heat insulating material 23 made of styrofoam that is attached to the corner portion 1b of the inner wall surface.

As shown in FIG. 3, the auxiliary heat insulating material 23 has a U-shaped cross-section with a divergent tip, and the height h is almost equal to the depth of the unit body 1 and the divergent tip. Width w
Is slightly larger than the width of the corner portion 1b of the unit body 1.

FIG. 4 shows a modification of the auxiliary heat insulating material 23.
A part of the height h direction is gouged. This gouged part 2
Since 3a is located in the ventilation passage 9 of the unit main body 1, if this is provided, the air flow between the chambers A to D is improved and the pressure between the chambers A to D is uniform as shown in FIG. Therefore, a preferable air flow rate can be obtained.

Next, the operation of this embodiment will be described.

When the heat insulating materials 21 and 23 are attached to the inside of the unit body 1, first, the linear portion 1a of the unit body 1 is firstly attached.
The main heat insulating material 21 made of foamed polyethylene is attached to. This main heat insulating material 21 is the same as the conventional one, and after being cut to a length substantially equal to the length of the straight line portion 1a, this is attached with an adhesive.

Next, an auxiliary heat insulating material 23 made of expanded polystyrene is attached to the corner portion 1b of the unit body 1. As described with reference to FIG. 3, this auxiliary heat insulating material 23 is formed such that the width w of the divergent tip is slightly larger than the width of the corner portion 1b, and therefore, when this is attached to the corner portion 1b. As shown in FIG. 5, the divergent tips are fitted in between the ends of the adjacent main heat insulating materials 21 so that the tip ends of the divergent tips are inwardly contracted.

That is, according to this embodiment, the main heat insulating material 21 is attached to the entire area of the straight line portion 1a, and the auxiliary heat insulating material 23 is fitted between the ends of the adjacent main heat insulating materials 21. Since the heat insulating material 23 is elastically fitted to the end portion side of the main heat insulating material 21, the main heat insulating material 21 and the auxiliary heat insulating material 23
Since there is no gap between them and the heat insulating materials 21 and 23 are attached to all the regions, the heat insulation is complete, and the disadvantages such as dew on the outer wall of the unit body 1 can be eliminated. ..

Since the auxiliary heat insulating material 23 is attached to the corner portion 1b of the unit main body 1, the corner portion 1b has
As shown in FIG. 5, the air layer 25 is interposed,
The heat insulation effect of that part is significantly improved compared to the conventional one. Therefore, in the past, in order to prevent dew condensation, the heat insulating material was also wound around the very small fixture 11 shown in FIG. 2, but according to the present embodiment, this can be omitted altogether, and the cost can be reduced. It is possible to obtain effects such as downtime and shortening of the manufacturing process.

[0019]

As is apparent from the above description, according to the present invention, the heat insulating material includes the main heat insulating material attached to the straight portion of the unit body and the auxiliary heat insulating material attached to the corner portion of the unit body. Since the auxiliary heat insulating material is elastically fitted between the ends of the main heat insulating material on the end side, there is no gap between the main heat insulating material and the auxiliary heat insulating material. The body is completely insulated.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a heat exchange unit according to the present invention.

FIG. 2 is a cross-sectional view showing a fixture of the unit body.

FIG. 3 is a perspective view showing an auxiliary heat insulating material.

FIG. 4 is a perspective view showing a modified example of the auxiliary heat insulating material.

FIG. 5 is an enlarged plan view showing a corner portion of the unit main body.

6A and 6B are cross-sectional views showing an example of pasting a conventional heat insulating material.

[Explanation of symbols]

 1 Unit body 1a Straight part 1b Corner part 3 Centrifugal fan 5 Heat exchanger 9 Ventilation path 11 Fixture 21 Main heat insulating material 23 Auxiliary heat insulating material

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Mochizuki, 2-18 Keihan Hondori, Moriguchi City, Osaka Prefecture Sanyo Electric Co., Ltd. (72) Inventor Takehiko Niimura, 2-18, Keihan Hondori, Moriguchi City, Osaka Sanyo Denki (72) Inventor Shinichi Nishikawa 2-18 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd. (72) Inventor Kazuki Fukushima 2-18 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd.

Claims (1)

[Claims] 1. A heat exchange unit comprising a heat insulating material and an inner wall surface of a unit main body in which a heat exchanger and a blower are housed, wherein the heat insulating material is a main heat insulating material attached to a straight portion of the unit main body. A heat exchange unit, comprising: an auxiliary heat insulating material attached to a corner portion of a unit body, wherein the auxiliary heat insulating material is fitted between end portions of the main heat insulating material.