JP2001033142A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve cooling efficiency for a refrigeration chamber and a vegetable chamber and ensure an improvement of fool insulation property and energy saving and further silencing in a refrigerator including from an upper portion the refrigeration chamber, the vegetable chamber, and a freezing chamber. SOLUTION: The present refrigerator includes from an upper portion a refrigeration chamber 44, and a freezing chamber 46 at a lower portion, and further a vegetable chamber 45 between the refrigeration chamber 44 and the freezing chamber 46. Herein, a condenser 60 is disposed rearwardly of the vegetable chamber 45 through a heat insulation wall 59, and an air fan 62 is disposed rearwardly of the refrigeration chamber 44. As a result, fan air resistance to the refrigeration chamber 44 and the vegetable chamber 45 is reduced, and cooling capability is improved by indirectly cooling properly the refrigeration chamber with a condenser 60.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an arrangement of cooling functional parts in a refrigerator.

[0002]

2. Description of the Related Art In recent years, attention has been paid to refrigerators in which the layout of a storage room is adjusted to the frequency of use in daily life in view of improvement in usability. It has become. Among them, particularly in recent years, the popularity of refrigerators which have been boosted by the health boom and which have a storage space for vegetables arranged in the center of the refrigerator which is the easiest to use has been increasing. That is, the refrigerator has a layout in which a refrigerator compartment, a vegetable compartment, and a freezer compartment are arranged in this order from the upper portion of the refrigerator.
Is disclosed in Japanese Patent Publication No.

Hereinafter, the conventional refrigerator will be described with reference to the drawings.

FIG. 5 is a front view of a conventional refrigerator. FIG. 6 is a longitudinal sectional view of the refrigerator. 5 and 6,
Reference numeral 1 denotes a refrigerator main body, and reference numeral 2 denotes a heat insulating wall provided with a rising portion 2a at the rear which partitions the inside of the refrigerator main body 1 into upper and lower portions. Reference numeral 3 denotes a refrigeration room, and 4 denotes a vegetable room provided below the refrigeration room 3, all of which are defined above the heat insulating wall 2. Reference numeral 5 denotes an upper freezer compartment, and reference numeral 6 denotes a lower freezer compartment, all of which are defined below the heat insulating wall 2. Also,
Reference numeral 7 denotes a low-temperature room which is provided at a lower portion in the refrigerator room 3 and whose temperature is controlled to be lower than that of the refrigerator room.

[0005] Reference numeral 8 denotes a rotary door provided at the front opening of the refrigerator compartment 3, and 9, 10 and 11 are provided at the front openings of the vegetable compartment 4, the upper freezer compartment 5, and the lower freezer compartment 6, respectively. It is a drawer type door. Reference numerals 12, 13, and 14 denote storage containers provided integrally with the drawer-type doors 9, 10, and 11, respectively.
It is a storage container provided inside. Reference numeral 16 denotes a shelf provided so as to partition the inside of the refrigerator compartment 3 into a plurality of storage sections.

Reference numeral 17 denotes a machine room formed from the lower part of the refrigerator main body 1 to the lower rear thereof, and 18 denotes the machine room 17.
The compressor of the refrigeration cycle installed in the rear of the lower freezing room 6 inside, and the condenser 19 in the machine room 17 installed below the lower freezing room 6. Reference numeral 20 denotes an evaporating dish provided in a space near the condenser 19 for evaporating defrost water. Reference numeral 21 denotes a cooler of a refrigeration cycle provided at the rear of the upper freezer compartment 5 inside the refrigerator, and is arranged vertically above the compressor 18. Reference numeral 22 denotes a blower for forced ventilation provided at an upper portion of the cooler 20, which is located behind the vegetable compartment 4 and opposed to the rising portion 2a of the heat insulating wall.

Reference numeral 23 denotes a wind path control panel provided behind the vegetable room 4 and the low-temperature room 7, and a damper device 2 for adjusting the amount of cold air supplied to the refrigerator room 3 and the vegetable room 4 inside.
4. Built-in damper device 25 for adjusting the amount of cold air supplied to the low-temperature chamber 7 and an electronic control board 26 for controlling the operation of electric components such as the compressor 18, the blower 22, the damper devices 24 and 25. I have.

Reference numeral 27 denotes a damper device 2 from the blower 22.
A first cold air discharge passage for sending cool air to the refrigerator compartment 3 through the cooling chamber 4; a plurality of cold air discharge ports 28 provided in the vertical direction at the center of the refrigerator compartment 3 and facing storage compartments between the shelves 16; Is provided. Reference numeral 29 denotes a second cool air discharge air passage for sending cool air to the low temperature chamber 7 via the damper device 24, and has a cool air discharge port 30 opened in the inner surface of the low temperature chamber 7.

Reference numeral 31 denotes a cool air intake air passage for returning cool air from the vegetable compartment 4 to the cooler 21, and has a cool air intake port 32 opened at the back of the vegetable compartment 4. The cool air discharged into the refrigerator compartment 3 and the cold room 7 is circulated to the cool air inlet 32 through the communication port 33 provided at the lower part of the lower part of the cold room 7 through the outer periphery of the container 12 of the vegetable room. Is configured.

Reference numeral 34 denotes an upper freezer compartment 5 from the blower 22;
It is a cool air discharge port for discharging cool air to the lower freezer compartment 6, and a rising portion 2a of the heat insulating wall faces the front surface of the cool air discharge port and guides the cool air downward. Reference numeral 35 denotes a cool air inlet for returning cool air to a lower portion of the cooler 21.

Reference numeral 36 denotes a temperature detector provided on the inner surface of the upper freezer compartment 5 for detecting the temperature of the freezer compartment, and 37 denotes a temperature detector for the refrigerator compartment 3.
Temperature detector installed at the back of the room to detect the temperature in the refrigerator
Reference numeral 8 denotes a temperature detector provided at the back of the low-temperature chamber 7 for detecting the temperature of the low-temperature room.

Reference numeral 39 denotes a defrost heater provided near the lower portion of the cooler 21; 40, a defrost water receiving tray for receiving defrost water; 41, a drain pipe; The water receiving tray 40 and the evaporating tray 20 communicate with each other.

With respect to the refrigerator configured as described above,
The operation will be described below.

First, when the temperature detected by the temperature detector 36 is higher than the set value, the compressor 18 is operated, the cool air cooled by the cooler 21 is forcibly ventilated by the blower 22, and the cool air discharge port 34 is provided for the freezing compartment. Is discharged into the upper freezer compartment 5 and the lower freezer compartment 6, and then returned to the cooler 21 from the cool air suction port 35. When the temperature detected by the temperature detector 36 becomes lower than the set value, the compressor 18 is stopped, and thereafter, this operation is repeated to cool the room to a freezing temperature of, for example, -18 ° C.

Next, when the detected temperatures of the temperature detectors 36 and 37 are higher than the set value, the cool air cooled by the cooler 21 by opening the damper device 24 is forcibly ventilated by the blower 22 to discharge the first cool air. The air is discharged from the cool air discharge port 28 into the refrigerator compartment 3 through the air passage 27. Then, the cool air that has cooled the inside of the refrigerator compartment 3 flows into the upper surface of the vegetable compartment 4 from the communication port 33, indirectly cools the vegetable compartment from the outer periphery of the storage container 12, and cools through the cool air intake port 32 through the cool air intake air passage 31. Returned to 21. Then, when the temperature detected by the temperature detector 37 becomes lower than the set value, the damper device 24 is closed, and thereafter, this operation is repeated, and the refrigerator compartment 3 is refrigerated at, for example, 4 ° C., and the vegetable compartment 4 is refrigerated at, for example, 6 ° C. Cool to temperature.

When the temperature detected by the temperature detectors 36 and 38 is higher than the set value, the cool air cooled by the cooler 21 by opening the damper device 25 is forcibly ventilated by the blower 22 and the second cool air The air is discharged from the cool air discharge port 30 into the low temperature chamber 7 through the passage 29. Then, the cool air that has cooled the inside of the low-temperature chamber 7 flows into the upper surface of the vegetable room 4 through the communication port 33, indirectly cools the vegetable room from the outer periphery of the storage container 12, and cools through the cool air suction port 32 through the cool air suction air passage 31. Returned to 21. Then, when the temperature detected by the temperature detector 38 becomes lower than the set value, the damper device 25 closes, and thereafter, this operation is repeated, and the inside of the low-temperature chamber 7 is kept in a temperature zone such as chilled at 0 ° C. or partial freezing at −3 ° C. Cool.

[0017]

However, in the above-mentioned conventional configuration, the cooler 21 is provided behind the upper freezer compartment 5,
The blower 22 is disposed in the rear of the vegetable compartment 4 and close to the upper part of the cooler 21, and cools the cool air cooled by the cooler 21 to the blower 2.
2, the refrigerator compartment 3 and the vegetable compartment 4 via the damper device 24
, The cooler 21 and the blower 2
The ventilation path from 2 to the refrigerator compartment 3 and the vegetable compartment 4 becomes longer.

For this reason, the refrigeration compartment 3 and the vegetable compartment 4 which are generally large in capacity and frequently used are practically used, especially in a high temperature season or a high temperature area mainly in the summer, and are stored. In use at a customer's home where the amount of food and the amount of food and drink are large, it is difficult to send a sufficient amount of cold air by the blower 22, and it is not possible to maintain appropriate temperatures in the refrigerator compartment 3 and the vegetable compartment 4. Further, the vegetable compartment 4 is supplied with cold air whose temperature after cooling the refrigerator compartment 3 is increased, so that the cooling capacity is further reduced, and the preservability of food stored in the refrigerator compartment 3 and the vegetable compartment 4 is reduced. There was a disadvantage.

The refrigerating compartment 3 having a large capacity and a large blowing resistance.
In order to sufficiently cool the vegetable room 4, it is necessary to increase the size of the blower 22, and there is a disadvantage that power consumption and noise increase.

The present invention solves the conventional problems.
An object of the present invention is to provide a refrigerator having a refrigerator compartment, a vegetable compartment, and a freezer compartment from the top, which can improve the preservability of food in the refrigerator compartment and the vegetable compartment in practical use, and can save energy and reduce noise.

[0021]

In order to achieve this object, the present invention provides a refrigerator having a refrigerator compartment at the top, a freezer compartment at the bottom, and a vegetable compartment between the refrigerator compartment and the freezer compartment. A blower is arranged behind a cooler and a refrigerator compartment with a heat insulating wall.

As a result, the cooling capacity of the refrigerator compartment and the vegetable compartment is enhanced, and the preservability of the food in practical use is enhanced. Also,
Energy saving and noise reduction can be achieved by downsizing the blower.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is characterized in that a refrigerator room is provided in an upper portion of a refrigerator main body, a freezing room is provided in a lower portion, and a vegetable room is provided between the refrigerator room and the freezer room.
A cooler behind the vegetable compartment, and a blower behind the refrigerator compartment, each of which is separated by a heat insulating wall, the refrigerator compartment, the ventilation path from the blower to the vegetable compartment is shortened, and also the vegetable compartment Appropriate indirect cooling is performed from the back by a cooler, and the cooling capacity of the refrigerator compartment and vegetable compartment is increased.

According to a second aspect of the present invention, in the first aspect of the present invention, a low-temperature room is provided below the refrigerator, and a blower is arranged behind the low-temperature room with a heat insulating wall therebetween. The depth of the low-temperature room, which does not need large capacity and is mainly for storing small items, is suppressed, and the blower is arranged by utilizing the extra space created behind.

According to a third aspect of the present invention, in the second aspect of the present invention, a damper device for controlling a supply amount of cold air to the refrigerator room, the vegetable room, and the low temperature room is provided behind the low temperature room, and the damper device is provided. The opening / closing part is disposed at the lower part, the temperature control part is disposed at the upper part, and the temperature control part is disposed at the upper rear of the low-temperature chamber. Increase.

The invention described in claim 4 is the invention according to claims 1 to 3
In the invention described in the above, a partition wall for dividing the refrigerator compartment and the vegetable compartment, and a heat insulating wall provided vertically above and below the refrigerator compartment and the vegetable compartment at the rear end of the partition wall, the heat insulating wall separating the cooler and the blower Are efficiently configured integrally.

According to a fifth aspect of the present invention, in the fourth aspect of the present invention, the heat insulating wall includes a cooler and a blower.
A space is arranged, and the space is used as a cool air blowing path to the freezing room, and the air blowing path is efficiently arranged using the space.

According to a sixth aspect of the present invention, there is provided the heat insulating apparatus according to the fourth or fifth aspect, wherein a machine room is formed behind the freezing room, a compressor is provided below the machine room, and a condenser is provided above the machine room. A cool air intake port from the vegetable room and a cool air discharge port to the low temperature room are provided on the wall, and a single component constitutes a cool air passage extending over two rooms.

According to a seventh aspect of the present invention, in the first aspect of the present invention, a machine room is formed behind the freezing room, a compressor is provided below the machine room, and a condenser is provided above the machine room. By arranging the cooler behind the vegetable compartment, the condenser is housed by utilizing the space created between the cooler and the compressor.

[0030]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a refrigerator according to the present invention will be described below with reference to the drawings.

Embodiment 1 FIG. 1 is a front view of a refrigerator according to Embodiment 1 of the present invention. FIG. 2 is a sectional view taken along line AA of the embodiment. FIG. 3 is a sectional view taken along line BB of the same embodiment.

In FIGS. 1 to 3, reference numeral 42 denotes a refrigerator main body. Reference numeral 43 denotes a partition wall for vertically partitioning the inside of the refrigerator main body 42. The partition wall 43 defines a refrigerator compartment 44 at an upper portion, a vegetable compartment 45 provided at a lower portion of the refrigerator compartment 44, and a freezer compartment 46 at a lower portion. Reference numeral 47 denotes a plurality of shelves provided at appropriate intervals in the refrigerator compartment 44. A plurality of storage sections 48 are formed between the shelves 47. Reference numeral 49 denotes a low-temperature chamber provided at a lower portion in the refrigerator compartment 44, which is provided with a storage container 50 and mainly serves fresh food such as meat and seafood at a temperature lower than the refrigerator compartment (for example, chilled at about 0 ° C. (Partial freezing at 3 ° C.).

Reference numeral 51 denotes a rotary door which is attached to the opening surface of the refrigerator compartment 44 so as to be openable and closable. 52 is the vegetable room 4
5 is a drawer-type door that is attached to the opening surface of the door 5 so as to be openable and closable, and is configured so that the storage container 53 on the indoor side can be integrally pulled out. Reference numeral 54 denotes a drawer-type door which is attached to the opening surface of the freezer compartment 46 so as to be openable and closable, and is configured so that the storage container 55 on the indoor side can be integrally pulled out.

Reference numeral 56 denotes a machine room formed behind the freezing room 46, in which a compressor 57 of the refrigeration cycle is arranged.
58 is a partition wall that partitions between the refrigerator compartment 44 and the vegetable compartment 45;
Reference numeral 59 denotes a heat insulating wall provided vertically below the refrigerator compartment 44, that is, on the back of the low temperature compartment 49 and the back of the vegetable compartment 45. And 60 is the insulation wall 59 behind the vegetable compartment 45.
Reference numeral 61 denotes a blower disposed behind the low-temperature chamber 49 and separated by the heat insulating wall 59. 6
2 is a heat insulating material arranged on the front of the cooler 60, and 63
Is a cool air passage to the freezer compartment 46, which is formed at a predetermined distance between the heat insulating wall 59 and the heat insulating material 62.

The reference numeral 64 denotes a refrigerator compartment 4 above the blower 61.
4 is a damper device provided in the lower rear part, wherein an opening 65 is disposed in the lower part and a temperature control part 66 is disposed in the upper part, and the opening is located behind the low temperature chamber 49, and the temperature control part 66 is It is provided so as to be exposed in the refrigerator compartment at the upper rear of the vehicle. Further, reference numeral 67 denotes a cold air blowing passage which communicates the damper device 64 with the refrigerator compartment 44.

Reference numeral 68 denotes a communication port for communicating between the refrigerator compartment 44 and the vegetable compartment 45 which is opened at the front of the partition wall 58. 69 is a cold air inlet opening behind the vegetable compartment 45;
Numeral 0 denotes a cool air discharge port opened to the rear of the low temperature chamber 49, and both are formed integrally with the heat insulating wall 59.

With respect to the refrigerator configured as described above,
The operation will be described below.

First, the cool air cooled by the cooler 60 is sent to the cool air blowing passage 63 by the blower 61,
To cool the freezer compartment 46 to a desired temperature. On the other hand, the cool air from the blower 61 is sent to the damper device 64, and the opening and closing of the opening and closing unit 65 is controlled by the temperature adjustment unit 66 in accordance with the cooling intensity arbitrarily set by the user, so that the cooling air required for cooling is supplied. Is introduced into the refrigerator compartment 44 through the cool air blowing passage 67 to cool the interior to a desired temperature. In addition, a part of the cool air that has passed through the damper device 64 is introduced into the low temperature chamber 49 through the cool air discharge port 70 to maintain the room in a desired low temperature zone.

Thereafter, the cool air that has cooled the inside of the refrigerator compartment 44 and the cool air that has cooled the inside of the low temperature room 49 are introduced into the vegetable room 45 through the communication port 68 and cool the room to a desired temperature. Then, the cool air that has cooled the inside of the vegetable room 45 is returned to the cooler 60 through the cool air suction port 69 at the rear of the room.

As described above, since the blower 61 is disposed behind the lower part of the refrigeration compartment having a large capacity and frequently used, the blast can be cooled at a short distance to the refrigeration compartment 44, so that the blast resistance is reduced. The cooling capacity during use can be increased.
In addition, the ventilation resistance has been reduced for the vegetable compartment 45,
Cooling capacity increases. Further, since the cooler 60 is provided behind the vegetable room 45, if the wall thickness of the heat insulating wall 59 is designed appropriately, the cooler 60 acts as an appropriate indirect cooling source for the vegetable room 45, The cooling capacity can be supplemented. Therefore, the preservability of the food stored in the refrigerator compartment 44 or the vegetable compartment 45 is improved.

Further, the size of the blower 61 for improving the cooling capacity can be reduced. In this case, the effect of energy saving and noise reduction by reducing the power consumption of the blower 61 can be obtained.

Further, the low temperature chamber 49 does not require much depth because it mainly stores small foods such as fresh foods.
Extra space is created behind. Since the blower 61 is housed by utilizing the surplus space, the mounting efficiency is good, and no wasteful installation space is consumed.

Also, since the damper device 64 is arranged upside down and the opening 65 is arranged at the lower part, and the temperature control part 66 is exposed at the upper rear of the low temperature chamber 49, the opening 65 is formed. There is no need to spend extra space in the vertical direction as compared to disposing the upper part on the upper side, and the usability of temperature control for the user is not impaired.

Further, the cooler 60 and the blower 61 are connected to the vegetable compartment 4.
The heat insulating wall 59 for the heat insulating partition behind the low temperature chamber 5 and the low temperature chamber 49 is integrally formed so as to extend over the partition wall 58 and both chambers. Become simple. At the same time, since the cool air suction port 69 from the vegetable room and the cool air discharge port 70 to the low temperature room are integrally formed, the air path configuration is simplified.

Further, by providing a space between the heat insulating wall 59, the cooler 60, and the blower 61 and using the space for the cool air blowing path, there is no need to newly provide a duct, so that the freezing room 4 can be rationally formed.
6, a cool air blowing path is formed. Since the path to the freezing room 46 has no damper device and originally low airflow resistance, a sufficient cooling capacity can be obtained.

(Embodiment 2) FIG. 4 is a sectional view of a refrigerator according to Embodiment 2 of the present invention. 4, reference numeral 7 denotes a machine room 56.
The condenser is disposed in the space above the compressor 57 inside.

In the refrigerator configured as described above,
Using the space above the compressor 57 caused by the cooler 61 being arranged behind the vegetable compartment 45, the condenser 72 is used.
Is arranged, the space in which the condenser is conventionally housed can be converted into the internal volume of the refrigerator, and the space can be effectively used.

[0048]

As described above, according to the first aspect of the present invention, the refrigerator compartment is provided at the upper part, the freezer compartment is provided at the lower portion, and the vegetable compartment is provided between the refrigerator compartment and the freezer compartment. Since the blower is arranged behind the vessel and the refrigerator compartment by the heat insulating wall, the cooling capacity of the refrigerator compartment and the vegetable compartment is enhanced, and the preservability of food in practical use is enhanced. In addition, energy saving and noise reduction can be achieved by downsizing the blower.

According to a second aspect of the present invention, in the first aspect of the present invention, since the blower is disposed behind the low-temperature room below the refrigerator and separated by a heat insulating wall, a surplus space can be effectively used and mounting efficiency can be increased. .

According to a third aspect of the present invention, in the second aspect of the present invention, a damper device for controlling a supply amount of cold air to the refrigerator room, the vegetable room, and the low temperature room is provided behind the low temperature room. The opening / closing unit is located at the bottom and the temperature control unit is located at the top, and the temperature control unit is located behind the upper part of the low-temperature room, so that no wasted space is consumed in the vertical direction and the user's ease of temperature control is impaired. Absent.

[0051] The invention described in claim 4 is the invention according to claims 1 to 3.
In the invention according to any one of the above, since heat insulating walls are provided above and below the refrigerator room and the vegetable room at the rear end of the partition wall that partitions the refrigerator room and the vegetable room, complicated joining and sealing are unnecessary. Assembly is simplified.

According to a fifth aspect of the present invention, in the fourth aspect of the present invention, the space between the heat insulating wall, the cooler, and the blower is a cool air blowing path to the freezing room, so that the duct can be rationally constructed. .

According to a sixth aspect of the present invention, in the fifth aspect of the present invention, a cold air inlet from the vegetable compartment is provided on the heat insulating wall.
The provision of the cool air discharge port to the low temperature chamber simplifies the air path configuration.

According to a seventh aspect of the present invention, in the first aspect of the invention, a compressor is provided in a lower portion of a machine room behind a freezing room, and a condenser is provided in an upper portion. The space can be converted to the internal volume, and the space can be effectively used.

[Brief description of the drawings]

FIG. 1 is a front view of a refrigerator according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG. 1;

FIG. 3 is a sectional view taken along line BB of FIG. 1;

FIG. 4 is a sectional view of Embodiment 2 of the refrigerator according to the present invention.

FIG. 5 is a front view of a conventional refrigerator.

FIG. 6 is a longitudinal sectional view of the refrigerator.

[Explanation of symbols]

 42 Refrigerator body 44 Refrigerator room 45 Vegetable room 46 Freezer room 56 Machine room 57 Compressor 58 Partition wall 59 Insulating wall 60 Cooler 61 Blower 63 Cool air blow path 64 Damper device 65 Opening 66 Temperature control section 67 Cold air blow path 68 Communication port 69 Cold air inlet 70 Cold air outlet 71 Condenser

Claims (7)

[Claims] 1. A refrigerator in which a refrigerator compartment is provided at an upper portion in a refrigerator main body, a freezer compartment is provided at a lower portion, and a vegetable compartment is provided between the refrigerator compartment and the freezer compartment. Refrigerator, characterized in that the blowers are arranged separately from each other by a heat insulating wall. 2. The refrigerator according to claim 1, wherein a low-temperature room is provided below the refrigerator, and a blower is arranged behind the low-temperature room with a heat insulating wall therebetween. 3. A damper device for controlling the amount of cold air supplied to the refrigerator compartment, the vegetable compartment, and the low-temperature room is provided at the rear of the low-temperature room, and the opening and closing part of the damper device is arranged at the lower part and the temperature control part is arranged at the upper part. 3. The refrigerator according to claim 2, wherein the temperature control unit is disposed at an upper rear portion of the low temperature chamber. 4. The refrigerator according to claim 1, wherein a partition wall for dividing the refrigerator compartment and the vegetable compartment is provided, and heat insulating walls are provided vertically at the rear end of the partition wall so as to extend over the refrigerator compartment and the vegetable compartment. The refrigerator according to claim 1. 5. The refrigerator according to claim 4, wherein the heat insulating wall is arranged with a space between the cooler and the blower, and the space is a cooling air blowing path to a freezing room. 6. The refrigerator according to claim 5, wherein a cool air suction port from the vegetable room and a cool air discharge port to the low temperature room are integrally provided on the heat insulating wall. 7. The refrigerator according to claim 1, wherein a machine room is formed behind the freezing room, and a compressor is provided below the machine room and a condenser is provided above the machine room.