JPH01312357A - Refrigerator - Google Patents

Abstract

PURPOSE:To shorten the height of a refrigerator by a method wherein a lateral installed rotary type compressor, a lateral flow fan type blower and a surrounding air feeding duct are arranged on a bottom plate in side-by-side relation, a condensor is slantly arranged at a duct part and a coolant inlet port of the condensor is placed at the lateral flow fan side and installed to be high. CONSTITUTION:Since an air blower 14 is of a lateral flow type fan, air can be sucked uniformly in its lateral width direction. Due to this fact, a condensor 16 to be mounted at a duct 15 may also be formed wide in a horizontal width direction. In addition, since the condensor 16 is installed at the duct 15 in an inclined state in reference to a horizontal direction, an effective area of heat exchanging operation is increased as compared with that of a horizontal installation or a vertical installation. Accordingly, it is possible to make a height of a refrigerator short while keeping a predetermined capability. A height of a device other than a lateral type rotary compressor 13 is set to have a substantially equal height of the compressor 13 or less than that height. That is, it is possible to make a height of a unit 11 of a mechanical chamber short.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a refrigerator used, for example, in a commercial refrigerator.

(Prior Art) Refrigerators used in commercial refrigerators, for example, are desired to have a lower height as the machine room is reduced as much as possible in order to increase the internal volume of the refrigerator. 7 and 8 show a conventional machine room. Figures 7 and 8
In the figure, 1 is a vertically placed rotary compressor, and a condenser 2 and a propeller fan 3 are installed on the sides thereof.

4 is a gas suction port, and 5 is a liquid outlet.

This conventional model had a relatively high front, but
In order to reduce the height of this, the number of propeller fans 3 must be increased and they must be arranged side by side to reduce the height.

However, increasing the number of fans makes the structure complex and expensive.

Furthermore, since the air blowing capacity is reduced, it becomes necessary to enlarge the condenser 2, which makes it difficult to save space.

(Problems to be Solved by the Invention) As mentioned above, in conventional refrigerators, when the number of propeller fans is increased in order to reduce the height, the structure becomes complicated and expensive. There is an inconvenience that this happens.

Furthermore, the air blowing capacity is reduced, and as a result, it is necessary to make the condenser larger, which makes it difficult to save space.

The present invention has been made in view of the above-mentioned problems, and its purpose is to provide an efficient refrigerator that has a relatively simple structure and can be made low in height.

[Structure of the Invention] (Means for Solving the Problems) A blower type blower and a duct section for introducing outside air are provided side by side, and a condenser is disposed diagonally in the duct section, and the condenser is arranged side by side. The refrigerant inlet side end is located on the side of the cross-flow fan and is raised and installed.

(Function) In the refrigerator of the above invention, since the blower is of a cross-flow fan type, air can be sucked in and blown out widely and uniformly in the width direction. Therefore, the condenser can also be formed wide in the width direction. Furthermore, since the condenser is installed diagonally in the duct, the heat exchange area can be increased compared to those installed vertically or horizontally, and the height of the condenser can be reduced. At the same time, the refrigeration efficiency can be improved.

Furthermore, since the refrigerant inlet side end of the condenser is located high on the side of the cross-flow fan, the wind speed on the refrigerant inlet side of the condenser increases. can be made good.

(Embodiment) FIGS. 1 and 2 show a first embodiment of the present invention. This is a machine room unit 11 in a refrigerator. On the upper surface of the bottom plate 12 of the machine room unit 11, a horizontal rotary compressor 13, a cross-flow fan blower 14, and an outside air introduction duct 15 are arranged in this order.

A plate fin type or wire fin type condenser 16 is installed in the duct portion 15 . As shown in FIG. 2, the condenser 16 is installed in the duct portion 15 obliquely with respect to the horizontal direction.

Furthermore, the condenser 16 has its refrigerant inlet end 18 located on the side of the cross-flow fan blower 14 and raised high;
On the other hand, the refrigerant outlet side end 19 of the condenser 16 was lowered and installed on the opposite side of the cross-flow fan type blower 14. and,
The cross-flow fan type blower 14 sucks outside air through an outside air introduction duct 15 and blows it out to the compressor 13 side.

Further, on the bottom plate 12 of this machine room unit 11, a refrigerant liquid outlet 21 and a refrigerant gas suction port 22 are provided. This refrigerant liquid outlet 21 is connected to the downstream side of the condenser 16 via a pipe 23, and the refrigerant gas inlet 22
is connected to the compressor 13 via a liquid separator 24.

Further, in this embodiment, the entire duct portion 15 has a casing structure, and a cross-flow fan type blower 1 is attached to the duct portion 15.
4 and condenser 16 as one integral unit. In this case, as shown in FIG. 3, refrigerant pipe connections 25, 26 may be provided in the unit.

The machine room unit 11 is used by being incorporated into, for example, a commercial refrigerator, and since the blower 14 is of a cross-flow fan type, air can be sucked in uniformly in the width direction thereof. Therefore, the condenser 16 installed in the duct portion 15 can also be formed wide in the horizontal width direction. Moreover, since the condenser 16 is installed obliquely with respect to the horizontal direction in the duct portion 15, the effective heat exchange area increases compared to the case where the condenser 16 is installed horizontally or vertically. Therefore, their heights can be reduced while ensuring a predetermined ability. Further, as shown in FIG. 2, for example, the heights of components other than the horizontal rotary compressor 3 are set to be approximately equal to or less than the height of the compressor 3. In other words, the height of this machine room unit 1 can be reduced.

Furthermore, since the refrigerant inlet end 18 of the condenser 6 is located on the side of the cross-flow fan blower 14, the flow velocity at the refrigerant inlet end 18 can be increased. Moreover, since the refrigerant inlet end 18 of the condenser 16 can be installed higher than the refrigerant outlet end 19, the condensation characteristics of the condenser 16 can be improved.

Furthermore, since the condensation characteristics can be improved, the number of rows of condensers 16 can be reduced. Therefore, the device can be made more compact and its cleaning becomes easier.

FIG. 4 shows a second embodiment of the invention. In this embodiment, the air suction port 27 of the duct portion 15 is provided on the upper side, and outside air is sucked in from above and blown out horizontally forward. The cross-flow fan type blower 14 is installed at the front end portion of the duct portion 15. Condenser 16
The refrigerant inlet end 18 of the refrigerant inlet is located on the side of the cross-flow fan type blower 14 and is installed high. Further, the air blown out by the cross-flow fan type blower 14 is guided to the compressor 13 side through another blow-off duct section 28 and blown out.

FIG. 5 shows a third embodiment of the invention. In this embodiment, the compressor 13 is attached to the bottom plate 12 via a plate 31, and in this way, the machine room unit 11 can be installed vertically as shown in FIG. . In other words, it is suitable for placing the entire refrigerator vertically, such as when incorporating it into the cold table 32 or the like. When used as a cold table 32 or the like, the interior of the refrigerator can be widened and the installation space can be narrowed.

Note that when the cross-flow fan type blower 14 and the condenser 16 are integrated into the duct part 15 and configured as one unit, this unit part has the horizontal shape of the first embodiment described above and the horizontal shape of this third embodiment. It can be commonly used for vertical type products and is suitable for mass production.

FIG. 6 shows a fourth embodiment of the present invention. In this embodiment, a drain plate or drain receiver structure 36 having a drain port 35 is incorporated in the bottom of the duct portion 15. In this way, as shown in FIG. 6, clean water can be poured from above, received by the drain plate or drain receiver structure 36, and allowed to flow out from the drain port 35. In other words, it is easy to clean.

Note that the present invention is not limited to the above embodiments. For example, the above-mentioned compressor can be used similarly if it is of a type other than the rotary type and has a low height.

[Effects of the Invention] As explained above, since the blower of the present invention is of a cross-flow fan type, the blower can have a simple configuration and can suck in and blow out air widely and uniformly in the width direction. Therefore, the condenser can also be formed wide in the width direction. Furthermore, since the condenser is installed diagonally in the duct, the heat exchange area can be increased compared to those installed vertically or horizontally, and the height of the condenser can be reduced. At the same time, the refrigeration efficiency can be improved. Furthermore, since the refrigerant inlet side end of the condenser is located high on the side of the cross-flow fan, the wind speed on the refrigerant inlet side of the condenser increases. can be made good. Furthermore, since the compressor is of a horizontally placed rotary type, the height of this part can be reduced, and no part of the compressor sticks out.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a machine room unit according to the first embodiment of the present invention, FIG. 2 is a side sectional view of the machine room unit according to the first embodiment, and FIG. 3 is a modification of the duct section. 4 is a side sectional view of a machine room unit in a second embodiment of the present invention, FIG. 5 is a side sectional view of a machine room unit in a third embodiment of the present invention, and FIG. 6 is a side sectional view of a machine room unit in a third embodiment of the present invention. FIG. 7 is a side sectional view of a machine room unit according to a fourth embodiment of the invention, FIG. 7 is a plan view of the conventional device, and FIG. 8 is a side view of the conventional device. 11... Machine room unit, 12... Bottom plate, 13...
・Compressor, 14...Blower, 15...Duct part, 1
6... Condenser. Applicant's Representative Patent Attorney Takehiko SuzueFigure 1Figure 2Figure 3Figure 4Figure 5Figure 6-Figure

Claims (1)

[Claims] A horizontal rotary compressor, a cross-flow fan type blower, and an outside air introduction duct are arranged side by side on the bottom plate, and a condenser is disposed diagonally in the duct, and the refrigerant inlet side end of this condenser is arranged side by side. A refrigerating machine characterized in that the end of the condenser is located on the side of the cross-flow fan and is raised, and the end of the condenser on the refrigerant outlet side is lowered and installed in the duct.