JP3058988B2 - Resin panel for 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 resin panel for an air conditioner.

[0002]

2. Description of the Related Art FIG. 5 is a top view of a panel of a conventional air conditioner, and FIG. 6 is a sectional view taken along the line CC of FIG. In order to reinforce the resin panel 1, several metal reinforcing sheet metals 2 are attached to the bosses 6 on the back surface of the panel 1 with screws 3.

[0003]

The panel of the conventional air conditioner has the following problems to be solved.

That is, the resin panel 1 expands and contracts as it is heated and cooled by a heating operation and a cooling operation.

[0005] In addition, expansion and contraction due to a change in temperature becomes more severe, for example, in the case of packing and stacking in a warehouse, and the expansion and contraction is correspondingly remarkable. When the reinforcing sheet metal 2 is directly attached to the back surface of the panel as shown in FIG. 5, since the shrinkage of the resin is larger than that of the reinforcing sheet metal 2, the mounting screw 3 of the reinforcing sheet metal 2 is used as a fixing point. There was a problem of deformation by hitting.

An object of the present invention is to provide a resin panel for an air conditioner, in which a mounting hole for a reinforcing metal plate is used as an elongated hole so that a screwed portion can move in accordance with expansion and contraction. .

[0007]

SUMMARY OF THE INVENTION The present invention provides a resin panel for an air conditioner described in the following (1) and (2) as means for solving the above-mentioned problems. (1). In a resin panel for an air conditioner in which a resin panel is reinforced with a metal reinforcing plate, only the center of the reinforcing plate is screwed and fixed to the resin panel, and other portions are provided with elongated holes in the reinforcing plate. A resin panel for an air conditioner, which is screwed so as to be relatively expandable and contractable through the same long hole. (2). In the resin panel for an air conditioner according to the above (1), a boss is protruded from the resin panel side, and the boss is fitted into a long hole of the reinforcing plate so that an upper end thereof protrudes from the reinforcing plate. A resin panel for an air conditioner, wherein a reinforcing plate is screwed.

[0008]

The present invention is configured as described above and has the following effects.

(1). In the above configuration (1), only the center of the reinforcing plate of the resin panel for an air conditioner in which the resin panel is reinforced with a metal reinforcing plate is fixed to the resin panel by screws, and the other portions are reinforced. A long hole is provided in the plate, and the reinforcing plate and the resin panel are screwed so that they can expand and contract relatively through the long hole. Even if it expands and contracts, the long hole becomes a “runaway” and does not generate wavy deformation.

(2). In the configuration of the above (2), in addition to the configuration of the above (1), a boss is protruded from the resin-made panel side, and the boss is inserted into the elongated hole of the reinforcing plate so that the upper end of the boss protrudes from the reinforcing plate. Since the reinforcing plate is screwed to the boss, the boss and the long hole can move freely relative to each other even if the tightening force of the screw becomes excessive, and the effect of preventing wavy deformation against relative thermal strain is further improved. Prominently played.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A resin panel for an air conditioner according to one embodiment of the present invention will be described with reference to FIGS.

The same components as those in the conventional example are denoted by the same reference numerals, and description thereof will be omitted unless necessary.

FIG. 1 is a perspective view of an air conditioner of the present embodiment, FIG. 2 is a top view of a reinforcing sheet metal mounting structure used in FIG.
FIG. 3 is a sectional view taken along the line AA of FIG. 2, and FIG. 4 is a sectional view taken along the line BB of FIG.

In these figures, 1 is a resin panel of an air conditioner, 2 is a reinforcing metal plate for reinforcing the resin panel 1, and 3 is a screw for fixing the reinforcing metal plate 2 to the resin panel 1. Reference numeral 4 denotes a stepped boss protruding from the resin panel 1 side; 5 a central boss protruding from the resin panel 1 side; 7 a length for fixing the reinforcing metal plate 2 with screws while allowing displacement by thermal strain. It is a hole.

Next, the operation of the above configuration will be described. As shown in FIG. 2 and FIG.
And is fixed to the central boss 5 through a normal round hole (non-long hole). On the other hand, on both sides, as shown in FIGS. 2 and 3, the top of the stepped boss 4 passes through the elongated hole 7 of the reinforcing metal plate 2, and the top surface thereof is slightly projected from the upper surface of the reinforcing metal plate 2. 3 fixed.

Accordingly, the temperature of the resin panel 1 increases due to the temperature change.
Even if there is a relative difference in thermal strain due to the difference in the coefficient of thermal expansion between the metal screw and the reinforcing sheet metal 2, the screw fixing portion at the center shown in FIG.
Since the reinforcing metal plate 2 slides in the elongated hole 7 with respect to the stepped boss 4 at the screw fixing portions on both sides shown in FIG. 3, the resin-made panel 1 does not have a wavy deformation.

In this embodiment, the stepped boss 4 prevents the screw 3 from tightening the reinforcing metal plate 2 and the slot 7 reliably responds to an extremely small thermal strain. The stepped boss may not be used, and the amount of the screw 3 biting into the resin panel 1 may be limited so that the screw 3 does not tighten the reinforcing metal plate 2. Alternatively, tighten with a suitable torque through a washer made of a material having a small coefficient of friction, and
May be slid when it reaches a thermal stress that leads to a deformation that is not esthetically pleasing, the choice being arbitrary without departing from its purpose.

As described above, according to this embodiment, the stepped boss 4 is protruded from the side of the resin panel 1, the top of the stepped boss 4 is formed in the elongated hole 7 of the reinforcing plate 2, and the upper end is slightly smaller than the reinforcing plate 2. A structure in which the two pieces are fitted so as to protrude and fixed by screws 3 is provided on both sides, and the reinforcing metal plate 2 and the resin panel 1 are fixed by screws 3 via a central boss 5 at the center. Even if there is a relative difference between the resin panel 1 and the reinforcing sheet metal 2 due to thermal strain, the slots 7 allow the relative difference on both sides around the center, and the resin panel 1 is deformed in a wavy shape or the like. There is an advantage that no occurrence occurs.

[0019]

The present invention has the following effects because it is configured as described above.

That is, according to the present invention, the resin panel and the metal reinforcing plate of the resin panel for an air conditioner in which the resin panel is reinforced with a metal reinforcing plate are fixed by screws at the center thereof, and other parts are fixed. Is provided with a long hole in the reinforcing plate, and the resin panel and the metal reinforcing plate are screwed so as to be able to expand and contract relatively through the long hole. No deformation occurs and the commercial value is correspondingly improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of an air conditioner according to one embodiment of the present invention,

FIG. 2 is a top view of the sheet metal mounting structure of the embodiment,

FIG. 3 is a sectional view taken along the line AA of FIG. 2;

FIG. 4 is a sectional view taken along the line BB of FIG. 2;

FIG. 5 is a top view of a panel of a conventional air conditioner;

FIG. 6 is a cross-sectional view taken along the line CC of FIG. 5;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Resin panel 2 Sheet metal for reinforcement 3 Screw 4 Stepped boss 5 Central boss 7 Slot

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) F24F 1/00 401

Claims (2)

(57) [Claims] 1. A resin panel for an air conditioner in which a resin panel is reinforced with a metal reinforcing plate, wherein only the center of the reinforcing plate is fixed to the resin panel by screws, and other portions are reinforced with a reinforcing plate. A resin panel for an air conditioner, characterized in that an elongated hole is formed in the panel and screwed so as to be relatively expandable and contractable through the elongated hole. 2. The resin panel for an air conditioner according to claim 1, wherein a boss is protruded from the resin panel side, and the boss is fitted into a long hole of the reinforcing plate such that an upper end thereof protrudes from the reinforcing plate. A resin panel for an air conditioner, wherein a reinforcing plate is screwed to the boss.