JPS6222064B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a refrigerator, and more particularly to a refrigerator suitable for reducing vibrations of a cover plate provided on the back of the refrigerator.

As a means of reducing the depth (when installed) of a refrigerator or as a means of improving the rear design, the compressor and condenser (conventionally installed exposed at the rear of the refrigerator) are generally housed in the machine compartment, and these compressor and condenser are There are many refrigerators on the market that use a blower to forcibly release the heat radiated by the refrigerator and condenser to the outside.

Also, recently, refrigerators that use the back plate of the refrigerator as a condenser and have an improved design for that part alone have become commercially available. However, the above-mentioned type of refrigerator that uses a blower to forcibly emit heat to the outside has the disadvantage that not only does the cost of installing the blower increase, but the power consumption goes back by operating the blower. . In addition, for the latter type of refrigerator where only the condenser serves as the back plate, the design of that part is improved, but the machine compartment where the compressor is housed is completely visible from the back, so the back design is This is not to say that the design of other refrigerator surfaces has improved. Furthermore, in the case of this type of refrigerator, the back plate of the refrigerator that serves as the condenser and the installation area must be installed with a space between it and the wall so as not to block the heat radiation of the previous condenser, so it is installed side by side. There was a defect in which items could be dropped from the sink or the like into the space formed between the back of the refrigerator and the wall.

In order to improve these defects, the present invention installs a cover plate over almost the entire length of the back of the refrigerator to form a chimney between it and the back plate of the refrigerator, thereby dissipating the heat of the compressor and condenser installed in the machine room. The chimney was used to dissipate heat to the outside by natural convection without using a blower, and the cover plate was attached closely to the back wall to obtain an inexpensive refrigerator. be.

The details of the present invention will be explained below with reference to an embodiment shown in the drawings. Reference numeral 1 denotes a refrigerator body. A machine room 7 is formed in which a condenser 6 is housed. Reference numeral 9 denotes a door that closes a front opening inside the refrigerator formed by the inner box 4. Reference numeral 10 denotes a cover plate that is attached to the back plate 2a of the refrigerator with a slight interval (30 to 70 mm) therebetween. As shown in FIG. 1, this cover plate 10 is provided over the entire length of the refrigerator body and also covers the machine compartment 7. That is, this cover plate 10 forms a chimney 11 between it and the refrigerator back plate 2a. In the case of the present invention, as shown in FIG. 3, the back plate 2a has a concave portion recessed in the longitudinal direction, and one end of this concave portion extends to a decorative portion, which will be described later, and the other end extends to the machine room 7. It is open. 2a' is a reinforcing rib, and as a result, only this part is not made into a recess, and the cover plate 10
It touches the back side. 12 is a decorative frame having a discharge port 13 attached to the upper end of the chimney 11. This decorative frame 12 also has a handle 14. Furthermore, it is very convenient to use the handle 14 when attaching the decorative frame 12 to the refrigerator body 1. 15 is a base forming the lower surface of the machine room 7. The lower end of the cover plate 10 is in contact with the base 15 to communicate the machine room 7 and the chimney 11. 16 is a suction port provided in the base 15. 17 is a wire condenser which is the main condenser and is installed directly above the suction port and across the entire width.

All of these are installed in the machine room 7 as shown in the figure, and the compressor 5 is located approximately below the chimney 11, and the wire condenser 17 is installed facing the air intake port. There is. 19 is a machine room cover that covers the front side of the machine room 7. 20
21 is a defrosting water tray (not shown in the figure, but is a defrosting water tray used when frost adhering to the cooler is melted) is a leg. The height of the legs 21 is approximately 20 to 50 mm, and provides a perfect distance between the lower surface of the base 15 and the floor surface when the refrigerator is installed. In addition, the above reinforcement rib 2
Since a' is provided at a suitable location on the back plate 2a and is filled with foam insulation material, the cover plate 10 is reinforced with screws or the like to prevent the cover plate (usually a thin iron plate) from becoming bent. It can be fixed to the rib 2a'.

Heat exchange with the condenser and compressor of the refrigerator having such a configuration is performed by air entering the wire condenser 17 approximately perpendicularly to the wire condenser 17 from the suction port 16 on the bottom surface of the condenser 17.
The temperature of the condenser 17, which is then connected to the compressor 5, is normally 40 to 50°C, so the temperature is 70°C.
It further exchanges heat with the compressor 5 whose temperature is around 80°C to become lighter and rises inside the chimney 11. At this time, the chimney 11 is a condenser 17 compressor 5
It plays the role of collecting high-temperature air that has passed through the air. Due to the natural convection that occurs in this way, this refrigerator achieves the same effect as conventional refrigerators that use a blower to dissipate heat.

In the present invention, the end surface of a cover plate that covers almost the entire back surface including the machine room with a built-in compressor is fixed to the back surface of the refrigerator, and the upper part is located near the ceiling surface of the refrigerator between this cover plate and the back plate of the refrigerator. It forms a chimney that is open and the lower part communicates with the machine room, and the back plate is provided with ribs filled with foam insulation material, and a cover plate is fixed to the upper rib with screws, etc. In addition to being able to dissipate heat from the compressor and condenser to the outside without installing a blower, it also improves the back design, and also fits tightly against the back wall to prevent items from falling to the back of the refrigerator when the refrigerator is installed. This allows you to install a refrigerator. Furthermore, since the cover plate is fixed to the ribs that are filled with foam insulation material and made strong, the cover plate can be firmly attached. Therefore, even if the vibrations of the refrigerator are transmitted to the cover plate, no vibration noise is generated.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a refrigerator equipped with the present invention as seen from the back side, FIG. 2 is a longitudinal cross-sectional view of FIG. 1, and FIG. 3 is a cross-sectional view of the refrigerator equipped with the present invention. 1...Refrigerator body, 2...Outer box, 3...Foam insulation material, 4...Inner box, 5...Compressor, 6...Auxiliary capacitor, 7...Machine room, 8...Inside the refrigerator, 9 ……
Door, 10... cover plate, 11... chimney, 12... decorative frame, 13... outlet, 14... handle, 15... base, 16... suction port, 17... wire condenser, 19... Machine room cover, 20...Defrost water tray.

Claims (1)

[Claims] 1. Fix the end face of a cover plate that covers almost the entire back area, including the machine room containing the compressor, to the back of the refrigerator, and open the upper part near the ceiling of the refrigerator between this cover plate and the back plate of the refrigerator. A refrigerator characterized in that a lower part thereof forms a chimney communicating with the machine room, a rib filled with a foamed heat insulating material is provided on the back plate, and a cover plate is fixed to the rib with screws or the like.