JPH0138435Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a fixing device for a heat insulating structure used in air conditioning equipment.

[Technical background of the invention and its problems]

For example, in air conditioning equipment that provides air conditioning for clean rooms used in the semiconductor manufacturing industry, etc., a casing (insulation structure) is made by combining multiple panels equipped with insulation material to form a space inside.
There is a type of air conditioner which is constructed of a casing, and the air conditioner is housed in the inner space of the casing, and the air conditioner is insulated from the outside of the casing, thereby increasing the air conditioning efficiency of the air conditioner.

The panels used for this casing are constructed by superimposing and fixing metal plates on the surface of a heat insulating material, and the casing is constructed by placing the panels on the ceiling, floor, and walls of the casing. It is assembled and fixed to the frame.

In the panel used for this casing, an inner plate and an outer plate made of metal provided on the inner and outer surfaces of the heat insulating material are sometimes fixed together with bolts at the outer surface of the panel. In this case, heat conduction occurs between the inside and outside of the casing via the inner surface plate, bolts, and outer surface plate, and the heat inside the casing is released to the outside, impairing the insulation effect of the casing on the air conditioner. .
Furthermore, if the temperature inside the casing is lower than the outside, dew condensation occurs at the end of the bolt exposed to the outside of the casing, causing corrosion of the bolt. For this reason, it is conceivable to make the bolts from stainless steel, which has excellent corrosion resistance, but there is a problem in that stainless steel is expensive and the material cost increases.

Furthermore, there is a structure in which frames for fixing panels in the casing are arranged inside and outside the casing, and each frame is connected and fixed by passing bolts from the outside of the casing. In this case as well, heat conduction occurs between the inside and outside of the casing via the bolts, resulting in the same problem as in the above case.

[Purpose of invention]

This invention was made based on the above circumstances,
A heat insulating structure that prevents heat conduction between the inside and outside of the heat insulating structure by fastening members for fixing the members of the heat insulating structure, and prevents a reduction in the heat insulation effect of the heat insulating structure and corrosion of the fastening members. The purpose is to provide a fixation device.

[Summary of the idea]

The fixing device for a heat insulating structure of the present invention is characterized by comprising a fastening member that fixes members constituting the heat insulating structure, and a cover member that covers a portion of the fastening member located outside the heat insulating structure. It is something to do.

[Example of idea]

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

FIG. 1 shows an embodiment of the present invention, and shows a corner of a casing of an air conditioner constructed by combining panels. In the figure, 1 is a casing, and this casing 1 is constructed by combining a plurality of panels 2,
An air conditioner (not shown) is housed in the inner space 3 surrounded by the panel 2. The drawing shows a corner of a casing 1 constructed by assembling panels 2 at right angles and fixing each panel 2 to a frame 14 with bolts 15. The panel 2 is constructed by laminating an inner surface plate 5 and an outer surface plate 6 made of metal on the inner and outer surfaces of a heat insulating panel 4. The inner surface plate 5 is formed so as to extend from the inner surface of the heat insulating panel 4 to the peripheral edge of the outer surface through the circumferential side.
At the outer surface part of the inner surface plate 5, the peripheral edge part of the inner surface plate 5 and the peripheral edge part of the outer surface plate 6 are overlapped inside and outside. A sheet-like packing 7 is attached to the outside of the inner surface plate 5 along the inner surface, peripheral edge, and outer surface of the heat insulating panel 4, and the peripheral edge of this packing 7 is provided with two packing plates 7a. , 7b, and the peripheral edge of the outer surface plate 6 is held between the packing plates 7a and 7b. As a result, the gaskets 7a and 7b overlap between the inner surface plate 5 and the outer surface plate 6 and on the outside of the outer surface plate 6. The packing 7 is made of a material with excellent heat insulation properties, such as rubber or resin.

The joint portions of the respective peripheral edges of the inner surface plate 5 and the outer surface plate 6 are joined and fixed at a plurality of spaced locations using bolts 8 in the following configuration. That is, a fixing hole 9 is commonly formed in the outer plate 6 and the packing 7, and a screw hole 10 into which the bolt 8 is screwed is formed in the inner plate 5 opposite to this fixing hole 9. A bush 11 is fitted into the fixing hole 9 from the outside of the panel 2 (the outside of the casing 1). This bushing 11 has a flange portion 11a at one end, and this flange portion 11a is supported by a packing plate 7b overlapping the outside of the outer surface plate 6. The bush 11 is made of a material having heat insulating properties and elasticity, such as rubber or resin. The shaft portion of the bolt 8 is inserted into the bush 11 from the outside of the panel 2 and screwed into the screw hole 10 of the inner surface plate 5, and the head is inserted into the flange portion of the bush 11 through the washer 12. It is supported in contact with 11a. As a result, the inner plate 5 of the panel 2
and the outer plate 6 are coupled and fixed. Furthermore, the head of the bolt 11 located on the outside of the panel 2 has a
A cap 13 is fitted from the outside of the panel 2. This cap 13 is made of a material having heat insulating properties and elasticity, such as rubber or resin.
The head of the bolt 8, the washer 12, and the flange portion 11a of the bush 11 located on the outside are all covered from the outside.

Here, the bush 11 and cap 13 are
A cover member is configured to cover a portion of the bolt 8 located outside the casing 1 from the outside.

Therefore, the inner surface plate 5 and the outer surface plate 6 of the panel 2
In the configuration in which the two are connected and fixed by the bolt 8, the cap 13 covers the head of the bolt 8 located outside the casing 1 and the washer 12, and also covers the bush 1.
1 covers the shaft portion of the bolt 8 and the washer 12, so that the bolt 8 is insulated from the air outside the casing 1 and the outer surface plate 6 of the panel 2. Therefore, the heat in the inner space 3 of the casing 1 is transferred from the inner surface plate 5 of the panel 2 to the air outside the casing 1 and the panel 2 via the bolt 8.
can be prevented from being conducted to the outer surface plate 6 and being emitted. Moreover, even if the temperature of the inner space 3 of the casing 1 is lower than that of the outside of the casing 1, the bolt 8 and washer 12 will not corrode due to dew condensation. This eliminates the need for the bolt 8 to be made of expensive stainless steel. Furthermore, when the casing 1 is installed outdoors, the cap 13 protects the bolt 8 and washer 12 from rainwater and the like, thereby preventing corrosion.

Note that the bush 8 and cap 13 are not limited to the above-mentioned embodiments, and may be formed in the shapes shown in FIGS. 2 and 3, for example.

In addition, in the embodiment described above, since the packing plate 7a is interposed between the peripheral edge of the inner surface plate 5 and the peripheral edge of the outer surface plate 6 of the panel 2, heat conduction between the inner surface plate 5 and the outer surface plate 6 is can be prevented. Furthermore, the peripheral portion of the outer plate 6 and the flange portion 11 of the bush 11
The packing plate 7b located between the bolt 8
Although it is not necessarily necessary to prevent heat conduction between the inner surface plate 5 and the outer surface plate 6, it prevents the occurrence of deflection of the peripheral edges of the inner surface plate 5 and the outer surface plate 6, and ensures that rainwater etc. does not enter between the two peripheral edges. This is useful in preventing.

The present invention is not limited to the case where the inner surface plate 5 and the outer surface plate 6 are combined in the panel 2 as in the above-described embodiment, but for example, as shown in FIG.
It can also be applied to the case where the frames to which the panels 2 are attached are connected and fixed together.

FIG. 4 shows a portion for connecting and fixing the panel 2 and the panel 2A.
In the figure, reference numeral 14 denotes a frame, and this frame 14 is located outside the casing 1 and is fixed to the panel 2 with bolts 15. 16 is a frame, and this frame 16 is arranged in the inner space 3 of the casing 1, facing the frame 14. Between the frame 14 and the frame 16 is the panel 2A.
An extension of the outer surface plate 6 and gaskets 17 that sandwich this extension from both sides are interposed.
Fixing holes 18 are commonly formed in the frame 14, the outer surface plate 6, the gasket 17, and the frame 16 at a plurality of locations spaced apart from each other in the longitudinal direction of the frame. The bushing 11 shown in FIG. A bolt 19 is inserted into the bush 11 and the fixing hole 18 from the outside of the casing 1, and the head of this bolt 19 located outside the casing is supported by the flange portion 11a of the bush 11 via a washer 20. and a bolt 1 that protrudes from the fixing hole 18 of the frame 16 into the inner space 3 of the casing 1.
A nut 20 is screwed onto the shaft portion of 9 through a washer 21 and tightened. This allows frame 14
The frame 16 is fixed by sandwiching the outer surface plate 6 and the gasket 17 of the panel 2A. Further, a cap 13 shown in FIG. 1 is fitted onto the head of the bolt 19 located outside the casing 1.
This cap 13 is the head of the bolt 19, and the washer 20
and covers the flange portion 11a of the bush 11,
It is thermally isolated from the air outside the casing 1 and the frame 14. Therefore, heat conduction between the inner space 3 of the casing 1 and the outside of the casing 1 via the bolts 19 is prevented, and the same effect as in the embodiment described above can be obtained.

The present invention can be applied as a heat insulating structure not only to the casing surrounding an air conditioner, but also to ventilation ducts, etc.

[Effect of idea]

As explained above, according to the fixing device for a heat insulating structure of the present invention, heat can be conducted between the inside and outside of the heat insulating structure via the fastening member that fastens various members used in the heat insulating structure. Since there is no condensation, the heat insulating effect of the heat insulating structure can be utilized, and since no dew condensation occurs on the fastening member, the fastening member can be made of inexpensive material, which is economical.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing one embodiment of the present invention;
3 and 3 are cross-sectional views showing other examples of the cover member, and FIG. 4 is a cross-sectional view showing other embodiments. 1...Casing, 2,2A...Panel, 8...
...Bolt, 11...Butsuyu, 13...Cap, 19...Bolt.

Claims (1)

[Scope of utility model registration request] In a heat insulating structure in which a space is insulated from the outside of the structure inside the structure, a member disposed outside the heat insulating structure and a member disposed in the inner space of the heat insulating structure. Alternatively, the heat insulation includes a fastening member that is inserted through and fastens to a member to be connected to this inner arrangement member, and a cover member having heat insulating properties that covers a portion of the fastening member that is located outside of the heat insulating structure. Structure fixing device.