JPS6234219Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a soundproofing device for noise generated during the operation of a refrigerator compressor.

[Prior art]

Figure 1 shows the lower machine room of, for example, a Mitsubishi Electric MR-2403V refrigerator, where 1 is a compressor;
2 is an evaporation dish, 3 is an evaporation pipe that evaporates the defrosting water accumulated in this evaporation dish, 4 is a front spar, 4a is a hole in the front spar that takes the evaporation dish in and out, 5 is a front leg, 6 is the floor surface, and 7 is the above This is a decorative cover that covers almost the entire width of the front spar.

Part of the noise generated in the compressor 1 during refrigerator operation is transmitted to the rear of the compressor, and the other part is transmitted to the front of the compressor. Of the noise transmitted forward, the noise that passes through the hole 4a in the front spar is blocked by the decorative cover 7 and is reflected, but the noise that passes through the space between the front spar 4 and the floor 6 continues to the front of the refrigerator and reaches the user. There was a problem that it caused discomfort.

[Summary of the idea]

This idea was made in order to eliminate the drawbacks of the conventional ones mentioned above, and by attaching a shielding plate to the front spar or evaporation pipe to cover the gap between the front spar and the floor at the bottom of the front of the refrigerator, the refrigerator can be operated. The purpose of this is to shield the operating noise of the compressor that is transmitted to the front and prevent it from causing discomfort to the user.

[Example of idea]

An embodiment of this invention will be described below based on the drawings. That is, 1 is a compressor, 2 is an evaporation tray, 3 is an evaporation pipe that evaporates the defrosting water accumulated in the evaporation tray,
4 is a front spar, 4a is a hole in the front spar for putting in and taking out an evaporating dish, 5 is a front leg, 6 is a floor surface, and 7 is a decorative cover. A shielding plate 8 is fixed to the front beam 4 with rivets or the like so as to cover the entire width of the space between the front beam 4 and the floor surface 6, and its lower end hangs down so as to contact the floor surface.

Next, the operation of this invention will be explained. During operation of the refrigerator, part of the noise generated in the compressor 1 is transmitted to the rear of the compressor, and the other part is transmitted to the front. Among the noise transmitted forward, the noise passing through the hole 4a in the front spar is blocked by the decorative cover 7 and reflected. on the other hand,
Noise passing through the space between the front girder 4 and the floor surface 6 is blocked by the shielding plate 7 and reflected, so that it is not transmitted forward, and the operating noise of the compressor is not transmitted to the user's ears.

In addition, FIG. 4 shows another embodiment of this invention, in which 8a is a mounting part molded from hard plastic, 8b is a fin part molded from semi-hard plastic, and these mounting part 8a and fin part 8b are are double-molded by extrusion molding. Also, this shielding plate is a rib 7 provided at the lower end of the decorative cover 7.
It is engaged and attached to a.

Therefore, since the mounting portion 8a of the shielding plate is made of hard plastic, it can be securely fixed to the decorative cover 7, and since the fin portion 7b is semi-hard plastic, even if the floor surface 6 is not flat due to a rug etc. It can adhere to surfaces and provide a shielding effect.

[Effect of idea]

As mentioned above, this idea uses a shielding plate that shields the gap between the front girder and the floor at the lower front of the refrigerator, thereby shielding the operating noise of the compressor that is transmitted to the front. This eliminates the discomfort caused to the user who is located in front of the refrigerator, as in the case of conventional refrigerators, and provides a low-noise refrigerator.

Furthermore, since the mounting portion of the shielding plate is made of hard plastic and the fin portion is integrally molded of semi-hard plastic, the shielding plate can be fitted closely to the floor surface and the shielding effect can be improved.

In the above embodiment, the shielding plate is attached to the front spar or the lower end of the decorative cover, but it goes without saying that the same effect as above can be obtained even if the shielding plate is attached to the evaporation pipe.

[Brief explanation of the drawing]

Fig. 1 is a side view of the main part of a conventional refrigerator with a part cut away, Fig. 2 is a sectional side view of the main part of the refrigerator according to this invention, Fig. 3 is a front view of Fig. 2, and Fig. 4 is a side view of the main part of the refrigerator according to this invention. FIG. 3 is a side view of a main part corresponding to FIG. 2 showing another embodiment of the invention; In addition, the same reference numerals in the figures indicate the same or equivalent parts, 1 is the compressor, 4 is the front spar, 4a is the hole in the front spar,
6 is a floor surface, 7 is a decorative cover, and 8 is a shielding plate.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. In a refrigerator in which a compressor, an evaporating dish, and an evaporating pipe are each arranged in the lower machine room of the refrigerator, and a decorative cover is provided at the evaporating dish outlet of the front spar, the above-mentioned front spar and floor surface A refrigerator characterized in that a shielding plate for shielding the gap is provided at the lower part of the decorative cover, and the shielding plate shields noise from the compressor transmitted to the front during operation of the refrigerator. 2. The refrigerator according to claim 1 of the utility model registration, characterized in that the shielding plate is constructed by integrally forming a mounting portion made of a hard plastic material and a fin portion made of a semi-hard plastic material by double molding.