JPS597871A - Refrigerator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] The present invention aims to save space and power by installing the compressor in the frame chamber formed at the bottom of the refrigerator and the main condenser on two sides of the refrigerator. On the other hand, the present invention relates to a so-called back-close R1 type refrigerator that does not deteriorate in performance even if the refrigerator is installed with the back surface of the refrigerator in close contact with a wall or the like.

Simple back-contact type refrigerators are commercially available from various manufacturers. To explain its structure in Figures 1 to 3, 1
1 is a refrigerator main body, and this refrigerator main body 1 has an interior (not shown) formed therein. 2.3 is a freezer compartment door that closes the front opening inside the refrigerator, and is a refrigerator compartment door. The outer box 4 that forms the outer shell of the refrigerator main body 1 is composed of a metal plate 5 that forms a ceiling surface, a side panel 6, a back panel 7, a bottom panel 8, and the like. 9 is a compressor, 10 is a defrosting water evaporation tray, 11
is a drainage condenser for evaporating the defrosting water that is placed in the defrosting water evaporation tray. ing. 13 is a main condenser pipe, and as shown in the figure, this main condenser vibe 13 is attached closely to the back side of a decorative cover 14, and the decorative cover 14 is used as a heat sink. 15 is a machine room cover that covers the rear part of the machine room 12 where the compressor 9 and the like are installed. However, these cosmetic cups <-14, the machine compartment cover 15 are flat curved, and the cosmetic force /<-14 and the mechanical compartment cover 15 are approximately the same as the protrusion 16 formed on the back of the refrigerator main body I. A heat exhaust passage 17 is formed between the back plate 7, the decorative cover 14, and the machine room cover 15, as shown in FIG. In other words, even if the refrigerator main body 1 of U- is installed with its back surface in close contact with a wall etc. as shown in FIG. The air that has exchanged heat with the compressor 9, the humid air that has evaporated from the defrost water evaporation tray, and the air that has exchanged heat with the main condenser vibe 13 are radiated to the outside through the heat exhaust passage 17.

The refrigerator having such a configuration is a typical one of the back-to-back type refrigerators currently on the market, as described above.

Although the back design of this refrigerator was certainly improved, it was unable to meet the needs of customers who are now demanding space and power savings.

In other words, in the case of the previous refrigerator, the L1 dimension of the heat exhaust passage 17 for discharging the air that has exchanged heat with the main condenser pipe 13 to the outside must still be secured behind the back plate 7 as in the conventional refrigerator. It was something. In addition, in this type of refrigerator, since the air that exchanges heat with the main condenser pipe 13 becomes warm air that exchanges heat with the compressor 9 and the drain condenser 11, the heat exchange of the main condenser HH vibe I3 itself In addition to being significantly cheaper than conventional refrigerators that do not have this type of decorative cover, the fact that the back of the refrigerator body 1 is covered with the decorative cover 14 and machine compartment covers to 15 has the following advantages: 1. The extremely high-temperature air that exchanges heat with the IE condenser 9, the drain condenser 11, and the main condenser pipe J3 passes through the heat exhaust passage 17, which also serves as a shield to heat the interior of the refrigerator. It had defects such as increased heat leakage and went against the goal of power saving.

In order to improve this defect, the present invention installs the main condenser on the ceiling of the refrigerator, uses fresh air that does not pass through a compressor etc. as cooling air for the main condenser, and also connects the back of the refrigerator to the wall. Even if the compressor and drain condenser are used in close contact with the refrigerator, the air that cools the compressor and drainage condenser will not cause any heat load inside the refrigerator. ) This invention contributes to the above-mentioned space saving and power saving by discharging heat to the outside.

The details of the present invention will be explained below with reference to an embodiment shown in FIGS. 4 to 10. Reference numeral 21 denotes a refrigerator main body, and this main body 21 forms a refrigerator interior 22 inside. Reference numerals 23 and 24 are doors that close the +iif opening of the interior of the refrigerator, 23 is a freezer compartment door, and 24 is a refrigerator compartment door.

An outer box 25 (composed of a ceiling plate 26, a side surface 27, a back plate 28, a bottom plate 29, etc.) forming the outer shell of the refrigerator main body 21. 30 is a compressor, 31 is a defrosting water evaporation tray, 32 is a drainage condenser for evaporating the defrost water collected in the defrost water evaporation tray 31;
: 32 is a machine seat 3 formed at the bottom of the refrigerator body 21
It is installed within 3. Reference numeral 34 indicates a heat exhaust passage formed in the traverse portion of the back plate 28. The heat exhaust passage 34 is formed by a back plate 28 having a groove-shaped cross section, which has a step of approximately 3 Q mm over its entire length at a width of approximately 50 mm at the side edge. The reason why the heat exhaust passage 34 is formed in this part is to utilize the part where the heat insulating wall thickness is the thickest and there is no fear of heat leakage into the refrigerator interior 22, as shown in FIG. 3
5 is the machine festival cover. 36 is the machine room cover 35
37 shows a heat exhaust port formed on the inclined surface.

Thus, the sloped surface 36 is formed to have a width of approximately 50 mm or more from the side surface portion (width greater than the heat exhaust passage 50+nm of the back plate). The width of this inclined surface is determined in relation to the amount of exhaust heat in the machine room. Further, this machine room cover 35 is removed so as to be positioned substantially on the same plane as the back plate 28. 38 is a main condenser installed on the ceiling plate 26, and 39 is a decorative cover that covers the main condenser 38 in a decorative manner.

As shown in FIG. 7, the cover 39 consists of a +IIR surface operating portion 40 located on the oil surface of the refrigerator, a cover portion 41 that covers the main condenser, and a rear frame portion 42.

The front operation unit 40 has an operation knob 43 attached to the front for adjusting the temperature inside the refrigerator, etc., and a suction port 44 is provided at the part facing the upper surface 23a of the freezer compartment door 23. ing. When forming this suction port 44, it should be noted that +ii
The back surface 40a of the i-plane operating section 40 is inclined upward. Further, a vent hole 45 as shown in FIG. 7 is provided on the side surface of the cover portion 41.

Furthermore, the rear frame part 42 is formed one step higher than the previous 1111-plane operation part and a part of the cover, and discharges [146, 47 are provided in the higher part. This discharge port 46.
When forming the grille 47, the grille 4 is designed to prevent dust from entering the decorative cover 39 from this part.
6a and 47a are arranged parallel to the ceiling board. In addition, the discharge port 46 sends the heat-exchanged air to the refrigerator.
The discharge port 47 is provided on the iij side to prevent the discharge from being discharged to the rear side.This is because the discharge port 46 comes first.
Even if the discharge port 46 is blocked due to an item being placed on it, it is necessary to prevent the performance from being significantly degraded.

Furthermore, as shown in FIG. 6, this rear frame 42 has the same shape as the back plate 28 at the portion corresponding to the extension of the heat exhaust passage 34 provided in the back plate 28 described above, and has the same shape. The discharge 047 is not provided in the portion forming the . This is a measure to prevent the exhaust heat air that has passed through the exhaust heat passage formed in the back plate 28 from flowing into the main condenser side. Reference numeral 49 denotes a board serving as an electrical component attached to the rear frame 42 portion. On this board 49 are placed various cities that control the operation of the refrigerator itself. Also, as shown in the figure, this base @49 is attached to the rear of the rear frame near the ceiling plate, and is attached to the discharge grill 47a formed on the rear frame 42.
It is treated so that it cannot be seen better from the outside through. Furthermore, installing this electrical item in the rear frame means that work such as wiring can be done on the back side of the refrigerator because the compressor etc. are installed at the rear of the machine room, which improves work efficiency (
Service quality) will also improve.

Next, to explain the positional relationship between the decorative cover 39 and the main condenser 38, firstly, the position of the main condenser 38 in the height direction with respect to the decorative cover 39, as shown in FIG. The space in the height direction created by the ceiling board 26 is L2.
Then, the previous main @ contraction mold 38 is installed so as to be located below with respect to this L2 dimension. In other words, there is a large gap between the top surface of the main condenser 38 and the back surface of the cover 41, and that portion is used as a passage for warm air that exchanges heat with the main condenser 38. And ventilation L14 is located in the place corresponding to this warm air passage.
5 is provided.

Next is the transformation 1. To explain the positional relationship of the cover 39 in the depth direction, the rear end of the main condenser 38 is configured to reach the rear frame 42 as shown in FIG. 48 is located exactly facing this rear frame 42. (If this main condenser 38 is installed in several stages, the main condenser inlet vibe part 48
is located near the discharge ports 46 and 47 provided in the rear frame 42.

This is based on consideration of air convection. ) The main ways in which a refrigerator with the above configuration is installed are shown in Figures 9 to 1.
A situation as shown in Figure 0 can be considered. That is, the case shown in Fig. 9 is the case where the back is pressed against a wall etc., and the first
The one shown in Figure 0 shows a state in which the back and both sides are covered with walls, shelves, etc. Even in such a case, in the present invention, the compressor 30, condenser, etc. are sufficiently cooled and the refrigeration cycle exhibits a predetermined capacity. This is because, as shown in FIG. 10, if the refrigerator is used in a situation where three sides except the front and ceiling surfaces are blocked, the compressor 30 installed in the machine room 33 and The drain condenser 32 exchanges heat with the air coming in from the bottom and front of the machine room 33, and exhausts the heat to the outside of the room 33 through a heat exhaust port 37 provided in the machine room cover 35. The exhausted heat air is then transferred to the back plate 2.
The heat rises through a heat exhaust passage 34 formed at 8, reaches the rear frame 42, and is discharged from there to the refrigerator.

- The main condenser 38 installed on the upper surface of the refrigerator is cooled by the air sucked in from the air intake 144 and the vent 45 provided in the portion corresponding to the refrigerator l1ir side and the upper surface of the freezer compartment. The air that has exchanged heat with the condenser 38 is exhausted to the outside through a leaf 46, 47 provided on the rear frame 42. In the present invention, at this time, the rear frame 42 is used for partition control so that the air that has undergone heat exchange with the compressor etc. does not enter the main condenser 38 section.

Next, the heat exhausting function in the machine room 33 will be explained. Heat in the machine room 33 is exhausted through a heat exhaust port 37 provided on the inclined surface of the machine room cover 35. Therefore, it is better for this heat exhaust port 37 to be as large as possible. However, the size of this slit-shaped heat exhaust port 37 is naturally limited in terms of design. Therefore, in the present invention, as shown in FIG. 10, although the step of the heat exhaust passage 34 formed by the back plate 28 is performed in a shape that connects point A to point B, it has a shape that connects point 7=lA' to point B. None Take enough slope between A'-8 and install heat exhaust port 37 in this part.
It is ζ゛ which is made to form . In other words, as shown in Fig. 10, when 31ro is blocked, the area created by the machine room cover and the back wall and shelves (the shaded area) is multiplied by the height 11 dimension of the machine room cover. 1, for example S c
Ideally, a υF heating port that can send sufficient exhaust heat air to rtI should be provided on this slope. By doing so, the air that exchanges heat within the machine room 33 smoothly exits the machine room and is then exhausted to the outside through the heat exhaust passage 34.

The present invention is directed to a refrigerator (hereinafter referred to as "G") in which a discharge outlet "1" is formed on the upper surface of the rear part of the decorative cover provided to cover the installed main condenser on the ceiling surface of the refrigerator as explained above. The main condenser is installed relatively below the space created between the decorative cup that covers the refrigerator ceiling and the ceiling of the refrigerator, and
In addition, since the main condenser installed at the top is placed on the refrigerant inlet side, the back of the refrigerator is reduced by the space previously required to install the main condenser, which reduces the overall depth of the refrigerator. It goes without saying that this invention meets the trend of space saving as the size of the space becomes smaller.
Since the plane f=J of the i2 condenser is the ceiling surface (conventionally the back surface), its area becomes approximately V2 or less, and therefore the heat load on the inside of the refrigerator is reduced. These things can also save power. Furthermore, by extending the decorative cuff <- that covers the main condenser to the top of the door and making the part of the decorative cover corresponding to the top of the door air suction "1", the main condenser cuff inside the main condenser (-) can be opened from the front. Of course, the refrigerant part of the +E condenser is located close to the discharge 1-1, which makes it difficult to see, and together with this, it creates a smooth air flow and improves heat exchange efficiency. This is something that can be done.

Further, chemical formula 1) 1: Since the 111 part of the cover is formed by the jiir surface operation part, a knob for a temperature regulator etc. can be provided, making it possible to make the refrigerator easy to use.

Historically, the operation side of the door corresponds to the air intake, which is a problem in terms of craftsmanship and improves the performance of the refrigerator.

[Brief explanation of drawings]

FIG. 1 is a diagram showing a refrigerator with a conventional structure, FIG. 2 is an exploded explanatory view of the main part of the refrigerator of FIG. 1, and FIG. 3 is a cutaway perspective view of the main part of the conventional refrigerator. FIG. 4 is a diagram showing the structure of a refrigerator equipped with the present invention, FIG. 5 is an exploded explanatory view of the main part of FIG. 4, and FIG. 6 is a cutaway perspective view of the main part of the refrigerator equipped with the present invention. Fig. 7 is a diagram showing the positional relationship between the decorative cup <- and the main condenser, Fig. 8 is an explanatory diagram of the refrigeration cycle piping used in the present invention, and Figs. 9 and 10 are diagrams showing the installation of the refrigerator equipped with the present invention. FIG. 9 shows the back side, and FIG. 10 shows the three sides except the 1iij side and the ceiling side. 21... Refrigerator body, 22... Inside, 23... Freezer compartment door, 24... Refrigerator compartment door, 25... Outer box, 26...
...Ceiling board, 27...Side board, 28...Back board, 29
... Bottom plate, 30 ... Compressor, 31 ... Defrost water evaporation tray, 32 ... Drainage condenser, 33 ... Machine room,
34...Exhaust heat passage, 35...Machine room cover, 36...
・Slanted surface, 37... Heat exhaust port, 38... Main condenser, 3
9...()1. Cover, 4o...Front operation section, 40
a...+back side of the jij side operating section 4o, 41... part of the cover, 42... rear frame, 43... operating knob, 44...
...Suction [1,45...Vent, 46.47 -Discharge port, 46a°, 47a...Discharge port grill, 48...Main condenser person [1 Vibe part, 49 Paga quality. Figure l Figure 2 Figure 3 Figure 4 Figure 7 Figure a

Claims (1)

[Scope of Claims] 1. A decorative cover provided to cover the main condenser installed on the ceiling of the refrigerator has vents on the sides and sides thereof, and Chemical 11: A discharge port is provided on the rear upper surface of the cover. In a refrigerator formed with 1, the above-mentioned main condenser is covered:!
The main condenser is installed relatively below the space created between the yt cover and the ceiling of the refrigerator, and the main condenser is installed at the top level and corresponds to the discharge port formed on the rear upper surface of the decorative cover. A refrigerator characterized in that the main condenser is located on the refrigerant inlet side, the decorative cover is extended to the upper surface of the door, and a portion of the decorative cover corresponding to two sides of the door is formed by an oil level operating section. 2, fjlt l 1r1j d position t le fiif
The refrigerator according to claim 1, characterized in that a surface It f'1 part (7) m'+ )/'J part surface suction 1' is provided.