JPS6225948B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an invention in which heat from a compressor and a wire condenser is discharged to the outside from the upper rear surface of a refrigerator by utilizing a chimney effect without using a blower.

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 types of refrigerators on the market that use a blower to forcibly radiate heat from the refrigerator and condenser to the outside. Also, recently, refrigerators that use the back plate of a refrigerator as a condenser and have an improved design for that part have also come on the market. However, in the case of refrigerators of the type that use the above-mentioned blower to forcibly emit heat to the outside, the disadvantage is that not only does the installation of the blower increase the cost, but it also goes against the power consumption by operating the blower. be. Also, for the latter type of refrigerator where only the condenser serves as the back plate,
Although the design of that part has been improved, since the machine compartment where the compressor is housed is completely visible from the back, the design of the back is not as good as the other side designs of the refrigerator. 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 refrigerator to form a chimney between it and the back panel of the refrigerator, and transfers heat from a compressor etc. installed in the machine room through the chimney. In addition, an inexpensive refrigerator can be obtained by radiating heat to the outside by natural convection without using a blower.

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 to house the 6. 9 is an interior 8 formed by the inner box 4
This is a door that closes the front opening of the 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. This cover plate 10 is the first
As shown in the figure, it is provided over the entire length of the refrigerator body and covers the 7th part of the machine room. That is, this cover plate 10 has a chimney 1 between it and the refrigerator back plate 2a.
1. 12 is a decorative frame having a discharge port 13 attached to the upper end of the chimney 11. This decorative frame 12 is attached to the back of the refrigerator, and a discharge port 13 provided in the decorative frame communicates with the upper end of the chimney 11.

In addition, by making the opening of the handle formed integrally with the decorative frame substantially on the same plane as the cover plate, and by making the handle 14 have the part where the fingers are inserted almost close to the back panel of the refrigerator, the design effect is enhanced and it is easy to carry. This improves the usability of time. As shown in the figure, in addition to being installed in the machine room 7, the compressor 18 is located substantially below the chimney 11, and the wire condenser 17 is installed facing the air suction port. 19 is a machine room cover that covers the front side of the machine room 7. 20
is a defrost water receiver (not shown in the figure, but it is a defrost water receiver used when frost adhering to the cooler is melted). Inside this defrost water receiver 20, there is a condenser 17 as shown in Fig. 2. A part of the defrost water is always in place and forcibly evaporates the defrosting water. 21 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. Reference numeral 22 denotes a fixture, and by providing this fixture 22 in a proper position, the cover plate can be attached as shown in FIG. 2, and the cover plate (usually a thin iron plate) can be prevented from becoming bent.

Heat exchange between the condenser and compressor of the refrigerator having such a configuration and outside air is achieved by first sufficiently exchanging heat with the condenser 17 by the air that enters approximately perpendicularly to the wire condenser 17 from the suction port 16 on the bottom surface of the condenser 17; Next, the temperature of the condenser 17 leading to the compressor 5 section is normally 40 to 50 degrees Celsius, so the temperature of the compressor 1 is around 70 degrees Celsius to 80 degrees Celsius.
It further exchanges heat with 8 and becomes lighter and rises inside the chimney 11.

At this time, the chimney 11 is a condenser 17 compressor 18
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. Reference numeral 23 denotes a small door provided at the part of the cover plate facing the machine room. Reference numeral 24 denotes an electrical component storage section in which, for example, a capacitor, a defrost timer, etc. are stored.
As shown in the figure, this electrical storage section is provided immediately after removing the mounting screws of the small door 23, and can be easily operated by opening the small door when inspecting the refrigerator.

Furthermore, the interior of the machine room 7 can be easily cleaned by opening the small door. Furthermore, it is preferable to install this electrical component storage part near the small door and in a place where it is not easily affected by the heat of the compressor 5 or the like.

According to the present invention, there is a cover plate that covers the entire back plate of the refrigerator including the machine room in which the compressor is installed, and an upper part opens near the ceiling surface of the refrigerator between the cover plate and the back plate, and a lower part opens near the ceiling surface of the refrigerator. A refrigerator having a chimney that communicates with the machine room includes an air intake inlet provided in the base that constitutes the bottom of the machine room, and a condenser provided in the machine room. Since the air is perpendicular to the condenser, the heat exchange performance between the air and the condenser is improved, and the condenser can be efficiently cooled. Therefore, it is possible to provide a refrigerator with high cooling performance without using a blower to take in air.

[Brief explanation of the drawing]

Fig. 1 is a needle perspective view of a refrigerator equipped with the present invention as seen from the rear side, Fig. 2 is a longitudinal sectional view of Fig. 1, and Fig. 3 is a plan view of the machine compartment of the refrigerator equipped with the present invention. be. 1...Refrigerator body, 2...Outer box, 3...Foam insulation material, 4...Inner box, 5...Compressor, 6...Condenser, 7...Machine room, 8...Inside the refrigerator, 9... ...door, 1
0... Covering board, 11... Chimney, 12... Decorative frame, 1
3...Discharge port, 14...Handle, 15...Base,
16... Suction port, 17... Wire capacitor,
18...Compressor, 19...Machine room cover, 20...
...Defrosting water tray, 23...Small door, 24...Electrical parts storage section.

Claims (1)

[Claims] 1. A cover plate that covers the entire back plate of the refrigerator including the machine room where the compressor is installed, and between the cover plate and the back plate, the upper part opens near the ceiling of the refrigerator, and the lower part opens into the machine room. A refrigerator with a communicating chimney consists of an air intake inlet provided in the base that constitutes the bottom of the machine room, and a condenser provided in the machine room, and the air from the inlet is A refrigerator characterized by being orthogonal to a capacitor.