JPS6235607Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a box for an air conditioner, such as a cooling box for an air conditioner in an automobile.

[Conventional technology]

Conventionally, as shown in FIGS. 1 and 2, this type of box has an outer housing 1 made of a steel plate with holes 6 formed in protrusions 5, and an upper part with a sound-insulating and heat-insulating plate 3 made of polystyrene foam stretched inside. The structure is such that a case A is engaged with a lower case B, which has a sound insulating and heat insulating plate 4 stretched inside an external casing 2 made of a steel plate.

[Problem that the invention attempts to solve]

However, since the above-mentioned cooling box is simply an engagement box in which sound-insulating and heat-insulating plates 3 and 4 are stretched inside the external casings 1 and 2, external noise, especially engine sound, sometimes enters the passenger compartment through this cooling box. In addition, the external casings 1 and 2 made of steel plates themselves generate surface resonance, amplifying external noise, and also have insufficient heat retention effects, making it difficult to create a comfortable interior environment. Moreover, the strength of the cooling box was not reliable enough.

[Purpose of invention]

The present invention has been developed in view of the above, and aims to provide a box for an air conditioner that provides sufficient sound insulation and heat retention to provide a comfortable interior environment in a vehicle, and is also sufficiently strong and reliable. This is the purpose.

[Means for solving problems]

A box for an air conditioner according to the present invention is a box for an air conditioner which is formed by engaging two external casings each having a sound insulating and heat insulating plate arranged inside through a space. An L-shaped section is provided, and the L-shaped sections are configured to come into close contact with each other when the two external casings are engaged.

[Effect of invention]

In the present invention, when the two external casings are engaged, the L-shaped sections provided at both ends of the sound insulation and heat insulation plates come into close contact with each other, thereby reliably closing the joint between the sound insulation and heat insulation board tone plates. , to prevent sound from leaking outside from this joint.

[Example of idea]

Hereinafter, representative embodiments of the present invention will be described in detail based on the drawings.

FIG. 3 shows a cooling box according to an embodiment of the present invention, and the cooling box according to the present invention is
When the external shape is approximately the same as that shown in FIG. This is an engagement box in which a case C is engaged with a lower case D in which a sound insulating and heat insulating plate 10 is stretched inside another external casing 9 having an uneven surface 13.

The upper case C has a sound insulating and heat insulating plate 8 made of styrofoam or the like with excellent sound insulation and heat retention properties attached to the inside of an external casing 7 having an uneven surface 11 formed by pressing a steel plate or the like. The outside has a U-shaped groove 11a, and the inside of the case has a sound insulating and heat insulating plate 8 stretched with the inner surface of the uneven surface 11 of the external casing 7.
A space 12 is provided. On the other hand, the lower case D has a sound insulating and heat insulating plate 10 made of polystyrene foam or the like having excellent sound insulating and heat retaining properties, which is stretched on the inside of an external casing 9 having an uneven surface 13 formed by pressing a steel plate or the like. A U-shaped groove 13a is provided on the outside of the case, and a space 14 is provided on the inside of the case, which is formed by a sound-insulating and heat-insulating plate 10 stretched over the inner surface of the uneven surface 13 of the external casing 9. The upper and lower cases C and D are engaged to form one cooling box. and,
The surface resonance absorption effect of the uneven surfaces 11 and 13 of the outer casings 7 and 9 of the cooling box prevents amplification of external noise, and the sound insulation effect of the sound insulation plates 8 and 10 and the spaces 12 and 14 reduces transmitted sound of external noise. This completely prevents external noise, especially engine noise, from being transmitted from the cooling box to the passenger compartment. Moreover, the sound insulation heat insulation plates 8 and 10 and the space part 1
2 and 14 increases the cooling effect, and therefore a comfortable cabin environment with less noise and a predetermined temperature can be obtained. Further, by providing a reinforced structure by providing the uneven portions 11 and 13 on the outer casings 7 and 9, a reliable and strong cooling box can be obtained at low cost.

4 to 6 show the engagement structure of each part aimed at improving the airtightness between the upper case C and the lower case D. FIG. 4 shows the engagement/detachment part 15, and L-shaped section 1 of a sound insulating and heat insulating board 8, which is provided inside the housing 7 and has L-shaped sections 16 at both ends.
6, and a sound insulation and heat insulation board 10 provided with an L-shaped section 17.
The L-shaped section 17 is brought into close contact with the L-shaped section 17, and one L-shaped section 17 is extended to cover the engagement hook section 18 of the engagement/detachment section 15 to ensure airtightness in this section. Fig. 5 shows the engaging fixing part 19 of the cooling box, and Fig. 6 shows the other engaging fixing part 19. Fig. 5 shows the bolt nut 2.
The L-shaped section 16 of the sound insulating and heat insulating board 8 and the L-shaped section 17 of the sound insulating and heat insulating board 10 are brought into close pressure contact with each other by tightening the sound insulating and heat insulating board 10 to achieve airtightness. A recess 21 is formed in the end face of the L-shaped section 16 of the plate 8, and the L-shaped section 1 of the sound insulation and heat insulation board 10 is formed.
A convex portion 22 is formed on the end surface of 7, and the concave portion 21 and the convex portion 22 are brought into close contact to achieve airtightness, and both of the above-mentioned engagement/removal portions 15 and engagement fixing portions 19 have sufficient airtightness. and good sound insulation and heat insulation effects can be obtained.

Although the air conditioner box of the present invention is mainly installed in the engine room, it may be installed in the trunk room or other areas. Furthermore, it goes without saying that the present invention can be used not only for cooling boxes but also for boxes for other air conditioners.

[Effect of idea]

As described above, according to the present invention, in a box for an air conditioner which is formed by engaging two external casings each having a sound insulating and heat insulating plate disposed inside thereof through a space, a cross section is provided at both ends of the sound insulating and heat insulating plate. Since the L-shaped sections are provided so that the L-shaped sections come into close contact with each other when the two external casings are engaged, sound leakage from the joints between the sound insulation and heat insulation plates is prevented. be done. Moreover, sufficient heat retention can be maintained due to the heat insulation effect of the sound insulating heat insulation plate and the space, resulting in a quiet and comfortable cabin at a desired temperature. Furthermore, the strength of the outer casing is strengthened by the uneven surface, making it possible to create a reliable and strong box.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a conventional air conditioner box, Fig. 2 is an enlarged sectional view taken along Y-Y of Fig. 1, and Fig.
The figure is a sectional view of a box for an air conditioner according to an embodiment of the present invention, FIG. 4 is an enlarged sectional view of the engaging/detaching part of FIG. 3, and FIG. 5 is an enlarged sectional view of the engaging/fixing part of FIG. 3. FIG. 6 is another enlarged sectional view of the engaging and fixing portion of FIG. 3. 1, 2, 7, 9...external casing, 3, 4, 8, 1
0...Sound insulation heat insulation board, 11, 13...Uneven surface, 1
2, 14... Space part, 15... Engagement attachment/detachment part, 1
6, 17... L-shaped section, 19... Engagement fixing part, A, B, C, D... Case.

Claims (1)

[Scope of utility model registration request] In a box for an air conditioner, which is formed by engaging two external casings each having a sound insulating and heat insulating board disposed on the inside through a space, an L-shaped section is provided at both ends of the sound insulating and heat insulating board, and the two external A box for an air conditioner, characterized in that the L-shaped cross-sectional portions are configured so that when the casing is engaged, the L-shaped sections are in close contact with each other.