JPH07294097A - Refrigerator - Google Patents

Abstract

PURPOSE:To implement a detailed separate disposal for the purpose of recovering resources by detachably connecting a deep-freezing/refrigerating chamber unit and a machine chamber unit with each other by means of a mechanical connecting means for connecting and disconnecting the two unit, an electric connecting means and a connecting means for chilled air passages. CONSTITUTION:A refrigerator is constituted of two chambers, i.e., a deep- freezing/refrigerating chamber unit 1 and a machine chamber unit 2. A vertically locating plate 18 for determining the relative positions of the two units 1, 2 is provided on unit 1. A chilled air return opening 17 of the deep-freezing/ refrigerating chamber and a deep-freezing chamber chilled air inlet opening 703 are provided above the vertically positioning plate. A deep-freezing/ refrigerating chamber connector 101 is provided in right end part of the chilled air inlet opening 703 and an electric component mounting plate 708 is secured on the connector. The unit 2 is constituted of a base 20 having a radiator 23 and a compressor 24 mounted thereon and a radiator box 21 having a cooling fan 29 and a chilled air circulating fan 30 mounted thereon. The unit 2 is connected to both the unit l and an electric control apparatus 36 by means of a machine chamber connector.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator capable of recovering resources, and more particularly to a refrigerator which can be sorted and discarded in a precise manner for recovering resources and which can be easily maintained.

[0002]

2. Description of the Related Art In recent years, from the viewpoint of resource reuse, as described in Japanese Unexamined Patent Publication No. 4-340079, refrigerators are subdivided, materials are easily discarded, and metal materials such as aluminum are reused. For this purpose, a separate refrigerator has been proposed. In this separate refrigerator, cooling units such as a cooling fan, a cooler, a defrost heater, a drainage device, and a compressor, which are provided on the lower rear surface of the freezing / refrigerating room, are separably provided.

[0003]

In the above-mentioned prior art, the cooling unit is separated from the main body by inserting a knife into the urethane foam portion around the cooling unit and cutting it. Therefore, once the cooling unit is separated from the main body, it is impossible to rejoin the cooling unit to the main body.

Further, the above-mentioned equipment constituting the cooling unit is the main part of the refrigerator, but if these fail, the cooling unit must be disconnected for repair, and the refrigerator can be reused after repair. Was impossible. That is, there is a problem that the maintenance cannot be performed sufficiently and the product must be disposed of in order to withstand the use sufficiently.

It is an object of the present invention to provide a refrigerator which enables more strict separation and disposal and resource recovery (recycling) from waste, and which can be easily maintained.

[0006]

In order to achieve the above object, the refrigerator of the present invention comprises a freezer compartment, a refrigerating compartment, a compressor, a radiator, and a cooling unit, which are composed of at least a heat insulating box and a door in the main body. In a refrigerator equipped with a cooler, a fan for circulating cold air, and an electric control device to supply cold air to the freezing compartment and the refrigerating compartment through a cold air passage, a refrigerating compartment unit including at least an insulating box and a door, and at least a compressor , A radiator, a cooler, a fan for cold air circulation, and a machine room unit composed of an electric control device, and a mechanical unit for attaching and detaching both units to and from the surfaces facing each other. A connecting means, an electrical connecting means for detachably connecting the two units to each other, and a connecting means for the cool air passage to detachably connect the cool air passage between the two units.

Further, as another configuration, a freezing / refrigerating room unit including at least a heat insulating box and a door, and a machine room including at least a compressor, a radiator, a cooler, a cool air circulation fan, and an electric control device. And a mechanical coupling means for attaching and detaching both units to and from the surfaces of the refrigerating and refrigerating compartment unit and the machine compartment unit facing each other, and an electrical coupling means for enabling electrical connection between the units. ,
First and second cold air supply ports in the machine room unit;
First and second cold air provided in the machine room unit are provided on the opposite side of the cooler from the first and second cold air supply ports, and a cold air intake port from a freezer compartment and a cold storage compartment. On the surface of the refrigerating / freezing compartment unit facing the supply port of the cold room, and the surface of the freezing / refrigerating room unit facing the intake of cold air provided in the machine room unit, respectively. To
A freezing room and a return port for cold air from a refrigerating room are provided, and the first
And a temperature control damper between the second cold air supply port, and a cool air circulation fan between the second cold air supply port and the temperature control damper and the cooler to supply the cold air. The cooling air passage connecting means is provided so that the cooling air passage can be removably attached between the opposed ones of the mouth, the intake opening, and the return opening.

Further, as another structure, the refrigerator main body is composed of a freezing / refrigerating room unit including at least a heat insulating box and a door, and at least a compressor, a radiator, a cooler, a cool air circulating fan, and an electric control device. And a cycle room unit including at least the compressor, a radiator, a cooler, and a cool air circulation fan. And a mechanical connecting means for attaching and detaching both units, and an electrical connecting means for attaching and detaching the two units on opposite surfaces of the cycle chamber unit and the freezer / refrigerating chamber unit. The cooling air passage connecting means for detachably connecting the cold air passages between the units and the both surfaces of the cycle chamber unit and the electric chamber unit facing each other are connected to each other. And mechanical coupling means for releasably bets,
The electric connection means for making the electric connection of both units detachable is provided.

In order to achieve the above object, the refrigerator of the present invention is the refrigerator of any one of the present invention having the above-mentioned means, for enclosing or removing a refrigerant or oil in the machine room or the cycle room unit. Holes, cutouts,
A refrigerant inlet / outlet such as a mark is provided, and a pipe for sealing or withdrawing the refrigerant or oil is provided in the vicinity of the refrigerant inlet / outlet.

[0010]

In the refrigerator of the present invention, the freezer-refrigerating room unit and the machine room unit are independent of each other, and the mechanical connecting means makes the positioning and fixing of the freezer-refrigerating room unit and the machine room unit detachable. I am doing it.

Further, when the two units are attached and detached, the electrical connecting means reversibly connects and disconnects the electrical wiring for transmitting various control signals and electric power.

Further, when the cooling air passage connecting means connects both units, the connection and disconnection of the cold air ducts formed in both units are reversible so that the leakage of cold air does not pose a problem to the cooling performance of the refrigerator. I am able to do it.

Further, in the structure of the cold air duct, the cold air return port of the freezing / refrigerating room unit and the cold air intake ports provided in the refrigerating room and the freezing room are respectively the cold air intake ports of the machine room unit, It is connected to the first and second cold air supply ports to form a cold air circulation cycle. At this time, the cool air circulation fan blows cool air to each of the refrigerating chamber and the freezing chamber, and the amount of cool air blown to the refrigerating chamber is controlled by the temperature control damper.

Further, the connection means of the cold air passage reversibly connects and disconnects the supply port, the intake port, and the return port of each cold air so that the leak of the cold air does not become a problem for the cooling performance of the refrigerator in the circulation cycle of the cold air. I can do it.

The connection of the cold air supply port, the intake port, and the return port does not necessarily mean that the respective ports are brought into close contact with each other.

In the cold air circulation cycle, it is sufficient to prevent the cold air from leaking and to secure the flow path of the cool air to the extent that the cooling performance and power consumption required for the refrigerator are satisfied.

As described above, in the refrigerator of the present invention, the freezing / refrigerating room unit mainly made of synthetic resin and the machine room unit using a large amount of metal material are detachably constructed and can be discarded or reused for each material. It becomes possible to easily recover various resources. In addition, it becomes possible to reuse each unit.

Further, since the machine room can be separated for maintenance and trouble, it is easy to take measures such as transferring the machine room for repair or the like by using only the small machine room.

The mechanical connection means for the freezer / refrigerator room unit and the machine room unit may be of a structure (one-touch attachment / detachment mechanism) that allows the units to be separated and assembled without using a tool, for example.

Further, in the machine room unit, a mechanical connecting means provided between the cycle room unit and the electric room unit detachably positions and fixes the two units, and the electric connecting means is used for both units. To enable reversible connection and disconnection of electrical wiring.

Further, in this structure, the electrical connecting means may also serve as a part or the whole of the mechanical connecting means.

Further, the inlet / outlet of the coolant or the like such as a hole, a notch or a mark for sealing or draining the coolant or oil in the machine room unit clearly indicates the location of the pipe for sealing or draining the coolant or oil. In particular, the hole or notch and the pipe for enclosing or removing the refrigerant or oil provided in the vicinity thereof should be equipped with a jig for enclosing or removing the refrigerant or oil through the hole or notch. to enable.

Therefore, after the refrigeration cycle is completed, it becomes easy to carry out the work of charging the refrigerant or the like, and
It becomes possible to easily perform the work of removing the refrigerant and the like in the first stage at the time of dismantling.

[0024]

Embodiments of the present invention will be described below with reference to the drawings.

An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view showing an embodiment of the present invention in a state in which a refrigerating compartment unit 1 and a machine compartment unit 2 are separated. 2 is a sectional view taken along the line II-II of FIG. FIG. 3 is a sectional view taken along the line III-III of FIG. Figure 4 is IV of Figure 1
FIG. 4 is a sectional view taken along the line IV-IV. FIG. 5 is a perspective view of the freezing / refrigerating room unit 1 viewed from the back side. FIG. 6 is a sectional view taken along the line VI-VI of FIG. FIG. 7 is a sectional view taken along the line VII-VII in FIG. FIG. 8 is a vertical cross-sectional side view in a state where the freezer-refrigerating room unit 1 and the machine room unit 2 are connected. FIG. 9 shows FIG.
FIG. 9 is a sectional view taken along line IX-IX in FIG. FIG. 10 is a detailed view of the X portion of FIG. FIG. 11 is a detailed view of the XI portion of FIG. FIG. 12 is a detailed view of the section XII in FIG. FIG. 13 is a detailed view of the section XIII in FIG. FIG. 14 is a perspective view of a cross section taken along line XIV-XIV in FIG. 15 is a sectional view taken along the line XV-XV in FIG. 16 is a sectional view taken along the line XVI-XVI in FIG.

As shown in FIG. 1, the refrigerator of the present invention has a two-unit structure of a freezing / refrigerating room unit 1 and a machine room unit 2. Hereinafter, the freezing / refrigerating room unit 1 and the machine room unit 2 will be described as the freezing / refrigerating room 1 and the machine room 2, respectively, with the units omitted.

First, the structure of the freezing / refrigerating compartment 1 will be described with reference to FIG. ◆ Freezer / Refrigerator 1 is a heat-insulating box 3 for Freezer / Refrigerator
And a refrigerating compartment 4 provided above the heat insulating refrigerating compartment body 3,
A refrigerating compartment door 6 provided on the front surface thereof with a hinge 5 or the like so as to be openable and closable, and a freezing compartment 7 provided in the middle of the heat insulation box body 3 for the freezing and refrigerating compartment
And a freezer compartment door 8 provided on the front surface thereof so as to be openable and closable by a hinge, and a vegetable compartment 9 provided below the heat insulation box body 3 for the freezing and refrigerating compartment.
And a vegetable compartment door 10 provided on the front surface thereof so as to be openable and closable by a hinge.

Generally, the heat-insulating box body 3 for the freezing / refrigerating room is composed of an outer plate such as a painted steel plate, a foam urethane or a vacuum heat insulating material, and an inner box of resin. The refrigerating compartment door 6, the freezing compartment door 8 and the vegetable compartment door 10 are made of the same material as the refrigerating compartment heat insulating box 3.

The structure of the refrigerator compartment 4 will be described with reference to FIGS. 2 and 3. As shown in FIG. 2, inside the refrigerating compartment 4, refrigerating compartment shelves 401 and 402 appropriately provided for organizing the stored items and shelves 403 and 404 for the refrigerating compartment door 6 are provided.
405, and cold storage intakes 406, 407, and 408 that are appropriately provided so as to penetrate the back inner wall 11 in accordance with the volume of the cold storage 4 and the configurations of the cold storage shelves 401 and 402,
A refrigerating compartment cold air return port 409 is provided below the inner side surface of the refrigerating compartment 4.

Further, as shown in FIG. 3, a refrigerator compartment door opening / closing sensor 410 for detecting opening / closing of the refrigerator compartment door 6, a refrigerator compartment interior lamp 411, and a refrigerator compartment temperature sensor for detecting the temperature inside the refrigerator compartment 4. The refrigerating compartment electrical component mounting plate 413 is attached to the refrigerating compartment electrical component mounting plate 413, and the refrigerating compartment electrical component mounting plate 413 is fixed above the inside of the refrigerating compartment 4.

Next, the structure of the freezer compartment 7 will be described with reference to FIGS. As shown in FIG. 2, inside the freezer compartment 7, a freezer compartment 701 and a freezer basket 702, which are appropriately provided for organizing stored items, and a freezer compartment 7 for taking in cold air into the room. The backside is provided with a freezing room cold air intake 703 provided so as to penetrate the freezing / refrigerating room heat insulating box 3, and a freezing room cold air return port 704 for sending cold air to the outside of the side surface of the freezing room 7. .

Further, as shown in FIG. 3, a freezing compartment door opening / closing sensor 705 for detecting opening / closing of the freezing compartment door 8, a freezing compartment interior light 706, and a freezing compartment temperature sensor for detecting the temperature inside the freezing compartment 7. 707 is attached to the freezer compartment electrical component mounting plate 708, and the freezer compartment electrical component mounting plate 708 is fixed inside the freezer compartment 7.

Next, the structure of the vegetable compartment 9 will be described with reference to FIG. ◆ In the vegetable compartment 9, a vegetable compartment basket 901, a vegetable compartment cold air intake port 902 provided above the side surface of the vegetable compartment 9 for taking in cold air into the room, and to send cold air to the outside of the lateral side of the vegetable compartment 9. The vegetable compartment cold air return port 903 is provided.

Next, the structure of the cold air passage of the freezing / refrigerating chamber 1 will be described with reference to FIGS. As shown in FIG. 2, a cold air passage 12 is formed in the back portion of the freezing / refrigerating compartment 1 so that the freezing / refrigerating compartment heat insulating box 3 and the back inner wall 11 form a part of the cool air duct. The refrigerating compartment cold air intake ports 406, 407, 408 provided on the back surface of the refrigerating compartment 4 are provided so as to penetrate the cold air passage 12.

Further, a cold air intake 13 is provided at the end of the cold air passage 12 which is connected to the machine room 2. Further, as described above, the cold air intake port 703 to the freezing compartment 7 is provided at the portion on the back surface of the freezing compartment 7 to which the machine room 2 is connected.

Further, as shown in FIG. 3, the refrigerating compartment cold air return port 409 provided in the refrigerating compartment 4 is provided with the cold air duct 1 provided inside the heat insulating material on the left and right side surfaces of the heat insulation box body 3 for the freezing and refrigerating compartment.
4, 15 are connected to the vegetable compartment cold air intake port 902 provided in the vegetable compartment 9.

As shown in FIG. 4, the vegetable room cold air return port 903 provided in the vegetable room 9 and the freezing room cold air return port 704 provided in the freezing room 7 are similar to the cold air ducts 14 and 15. A cold air duct 16 provided inside the heat insulating material of the heat insulating box body 3 for the freezing / refrigerating room is connected to the cold air returning port 17 of the freezing / refrigerating room. Although not shown in FIG. 4, the cool air duct 16
A similar cool air duct is also provided on the side surface opposite to the side surface on which is provided.

Next, the structure of the rear surface of the freezing / refrigerating room 1 will be described with reference to FIGS. ◆ As shown in Figure 5,
Below the rear of the freezing / refrigerating room 1, a freezing / refrigerating room 1 and a machine room 2 are provided.
Upper and lower fixed plate 1 for relative positioning of the
8, a freezing / refrigerating room cold air return port 17 is provided thereon, and a freezing chamber cold air intake port 703 is further provided above it.

A freezing / refrigerating room connector 101 is provided at the right end of the freezing / refrigerating room cold air intake 703, and a freezing / refrigerating room electrical component mounting plate 708 is fixed to the freezing / refrigerating room connector 101 with a screw or the like.

Further, an opening (cold air intake 13) of the cold air passage 12 is provided above the freezing room cold air intake 703, and horizontal plane positioning grooves 19 are provided at both ends thereof.

Further, as shown in FIG. 12, the freezer / refrigerator compartment connector 101 includes several pin contacts 101c.
Protrusions 101a and 10 made of elastic material such as plastic
1b and the like.

Here, the freezing / refrigerating chamber 1 is composed of the refrigerating chamber 4, the freezing chamber 7, and the vegetable chamber 9, but the present invention is not limited to this. Further, the structure of each room is limited to the description of the minimum necessary items here, and in particular, various shapes can be considered for the door shape, the shelf, and the car, and the present invention is not limited to this embodiment.

Next, the structure of the machine room 2 will be described with reference to FIGS. 1, 6 and 7. As shown in FIG. 1, the machine room 2 comprises a base 20 and a machine room heat insulating box 21.

First, the structure of the base 20 will be described with reference to FIG. A radiator plate 22 is provided on the front portion of the base 20, and a high-performance compact radiator 23 is fixed to the radiator plate 22.

The base 20 also has a radiator plate 22.
To the rear of the compressor 24, a cooling fan 25 for promoting heat dissipation and cooling of the compressor 24 beside it, and a cooling fan 2
A cooling fan motor 26 for driving the motor 5 is provided.

Further, in this embodiment, as shown in FIG.
Below the base 20, a height adjusting leg 27 and a moving caster 28 can be used for easily adjusting the height and moving the refrigerator.
Is provided.

Next, with reference to FIGS. 1, 6, 7 and 13, the heat insulating box body 21 for machine room and the internal structure thereof will be described.

As shown in FIG. 1, a heat insulating box 21 for a machine room
Is connected to the back side of the freezing / refrigerating compartment 1, and is configured to form a cool air duct by utilizing the back surface of the freezing / refrigerating compartment 1. Therefore, a space for forming a cool air duct for guiding cool air from the freezer-refrigerating room 1 to the cooler 29 provided in the machine room 2 is provided above the machine room heat insulating box 21 formed at the boundary with the base 20. A cooler 29 is provided to be vacant.

Above the cooler 29, there are provided a cool air circulation fan 30 for sending cool air to each chamber, and a cool air circulation fan drive motor 31 for driving the cool air circulation fan 30. Generally, a cross-flow fan, a propeller fan, or the like is used as the cool air circulation fan 30.

Further above that, a refrigerating compartment temperature adjusting damper 32 for adjusting the amount of cold air introduced into the refrigerating compartment 4 is provided.

Further, in order to form a cool air duct by the back surface of the freezing / refrigerating room 1 and the heat insulating box body 21 for the machine room, a cold air leak preventing packing 33 is provided at a portion where the heat insulating box body 21 for the machine room is in contact with the freezing / refrigerating room 1. Is provided.

Various sensors (410, 412, 705, 7) provided in the freezing / refrigerating room 1 are provided on the upper rear surface of the machine room 2.
07)) to control the internal lights 411, 706, the compressor 24, the refrigerating compartment temperature adjusting damper 32, and the like. The electric control device 36 is fastened (not shown) to the machine room heat insulating box body 21 with screws or the like, and has a detachable structure.

A machine room connector 102 is provided next to the refrigerating room temperature adjusting damper 32 in order to electrically connect the freezing / refrigerating room 1 to the machine room 2 or the electric control device 36.

As shown in FIG. 13, the machine room connector 10
Reference numeral 2 denotes the same number of socket contacts 102c configured to insert and connect the pin contacts 101c, and the hole portion 102a to which the protrusions 101a and 101b are inserted and connected to ensure the connection between the pin contacts 101c and the socket contacts 102c. 102b and the like. The machine room connector 102 and the connector 101 provided in the freezing / refrigerating room 1 only need to be in a position where they can be connected to each other, and are not limited to the positions of this embodiment.

Further, as shown in FIG. 6, a drainage pipe 34 through which defrosted water flows when defrosting the frost adhering to the cooler 29 is provided at a boundary portion between the machine room heat insulating box 21 and the base 20.
Under the drainage pipe 34, an evaporation tray 35 that receives defrosted water and evaporates is provided.

Further, as shown in FIG. 7, the heat insulating box 21 for machine room is used in the upper part together with the positioning groove 19 in the horizontal plane to perform the relative positioning and fixing of the freezing / refrigerating room 1 and the machine room 2. An internal positioning mechanism 37 is provided. The horizontal plane positioning mechanism 37 includes a vertical slide pin 37a having a convex portion at the top, a spring 37b, and a vertical stopper 37c, and the vertical slide pin 37a is supported so as to be vertically movable.

In FIG. 7, the upper and lower slide pins 3
7a, the spring 37b, and the upper and lower stoppers 37c are shown not in cross section but in outer shape.

Although an example of the machine room 2 is shown here, the invention is not limited to this.

Next, with reference to FIGS. 1, 7 and 8, a method for attaching / detaching the freezing / refrigerating room 1 and the machine room 2 will be described.

First, a method of connecting the freezing / refrigerating room 1 to the machine room 2 will be described. When connecting the freezing / refrigerating room 1 and the machine room 2, the machine room 2 is left as it is from the state shown in FIG. 1, and the freezing / refrigerating room 1 is moved rearward to approach the machine room 2. At this time, as shown in FIG. 8, the upper and lower fixing plates 18 are moved so as to be inserted under the machine room heat insulating box body 21 of the machine room 2 to move the freezing and refrigerating room 1 and the machine room 2 in the vertical direction. Positioning is done.

At this time, at the same time, the vertical slide pin 37a having a convex portion at the upper portion of the horizontal plane positioning mechanism 37 shown in FIG. 7 is inserted into the horizontal plane positioning groove 19 of the machine room 2, thereby freezing and refrigerating. The chamber 1 and the machine chamber 2 are positioned in the horizontal plane, and both are fixed.

By utilizing a mechanism (one-touch attachment / detachment mechanism) such as the horizontal plane positioning mechanism 37, the assembly can be performed without using a tool.

Further, when the freezing / refrigerating room 1 and the machine room 2 are separated, they can be easily separated by strongly sliding the freezing / refrigerating room 1 forward.

Although the method of attaching and detaching with one touch is shown in the present embodiment, it is not limited to this.

When the freezing / refrigerating room 1 and the machine room 2 are connected, the freezing / refrigerating room connector 101 and the machine room connector 1 are connected.
02 is connected at the same time.

Next, the structure of the cool air duct and the flow of the cool air will be described with reference to FIGS. 3, 4, and 8 to 11.

As shown in FIG. 10, a cold air leak prevention packing 33 is provided between the freezing / refrigerating room 1 and the machine room 2 to prevent cold air from leaking during connection. The cold air leakage prevention packing 33 is composed of a machine room packing groove 33a provided in the machine room heat insulating box 21 and a machine room packing 33b. The present embodiment shows an example of the cool air leakage prevention structure, but is not limited to this.

As shown in FIG. 8, when the freezing / refrigerating room 1 and the machine room 2 are connected, the cold air leakage prevention packing 33,
A fan 30 for cold air circulation, a damper 32 for adjusting the temperature of the refrigerating room,
Due to the positional relationship between the cold air passage 12 and the freezer compartment cold air intake 703, two cold air circulation paths are formed. That is, the cooling air cooled by the cooler 29 flows through the cooling air circulation fan 30, the cooling chamber temperature adjusting damper 32, and the cooling air passage 12 to the cooling chamber 4, and the cooling air circulation fan 30 takes in the cooling air from the freezing chamber. A circulation path is formed that flows into the freezer compartment 7 through the mouth 703.

In the present embodiment, the first cold air supply port 38 for supplying cold air to the refrigerating compartment 4 is provided above the damper 32 for adjusting the refrigerating compartment temperature, and the freezing compartment 7 is provided next to the cold air circulating fan 30. The second cold air supply port 39 is formed by connecting the freezing and refrigerating compartment 1 and the machine compartment 2 on the opposite surface.

When the temperature sensor 412 detects that the temperature of the refrigerating compartment 4 or the vegetable compartment 9 is sufficiently low, the refrigerating compartment temperature adjusting damper 32 is instructed by the electric control device 36.
Is closed, and the cool air is sent only to the freezing compartment 7 through the freezing compartment cold air intake port 703. The cold air that has circulated through the freezer compartment 7 returns from the freezer compartment cold air return port 704 to the lower part of the cooler 29 through the cold air duct 16 (FIG. 4) and the freezer / refrigerator compartment cold air return port 17.

When the temperature sensor 412 detects that the temperature of the refrigerating compartment 4 or the vegetable compartment 9 is high, the refrigerating compartment temperature adjusting damper 32 is opened by a command from the electric control unit 36, and the cool air passes through the cool air passage 12. It is also sent to the refrigerator compartment 4.

At this time, the cold air is the cold air intake 40 of the refrigerating room.
It enters from 6, 407, 408 and circulates in the refrigerator compartment 4,
From the cold air return port 409 to the vegetable room cold air intake port 902 via the cold air ducts 14 and 15 (FIG. 3), the vegetable room 9
Get in The cold air circulates in the vegetable compartment 9, and then returns to the lower part of the cooler 29 through the vegetable compartment cold air return port 903, the cold air duct 16 (FIG. 4), the freezing / refrigerating room cold air return port 17.

The cold air leakage prevention packing 33, the cool air circulation fan 30, the cold room temperature adjusting damper 32, which is provided in the machine room 2, the cold air passage 12, the freezing room, and the cold air intake port 703, which are provided in the freezing / refrigerating room 1, are provided as a main body. By arranging in the positional relationship of the embodiment, the refrigerator compartment 4 or the vegetable compartment 9 and the freezer compartment 7 can be effectively cooled with a simple configuration.

FIG. 11 shows a packing structure used for a refrigerating compartment door 6, a freezing compartment door 8, a vegetable compartment door 10 and the like for sealing cold air.

In order to prevent the cool air from leaking to the outside, the internal packing 40 is provided over the entire circumference between the refrigerating compartment heat insulating box 3 and the refrigerating compartment door 6 or the freezing compartment door 8.
Is provided to seal the interior of the refrigerator compartment 4 or the freezer compartment 7.
Further, the outer packing 41 is provided outside the inner packing 40 over the entire circumference.

By providing these two kinds of packings 40 and 41, it is possible to prevent direct contact between the outside air and the cool air at the inner packing 40 portion and prevent dew condensation. Vegetable room 5
For 0, the same method is used to implement a closed structure and prevent dew condensation.

In addition, as a method of preventing dew condensation, there is a method of warming the temperature of the same portion to a temperature above the dew point with a cord heater or the like.

Next, the electrical wiring will be described with reference to FIGS. ◆ The electrical wiring in the machine room 2 is not particularly important here, so the description thereof is omitted. Further, the electrical connection between the machine room 2 and the freezer / refrigerator room 1 is performed by connecting the freezer / refrigerator room connector 101 and the machine room connector 102 as described above. It is automatically attached and detached as it moves.

Wiring in the freezer compartment 1 will be described with reference to FIGS. 12 and 14 to 16.

As shown in FIGS. 12 and 14, the freezer compartment door opening / closing sensor 705, the freezer compartment interior light 706, and the freezer compartment temperature sensor 707 from the freezer / refrigerator compartment connector 101 to the freezer compartment 7.
To the cables 103, 104, 105, respectively.

Cables 106, 107, from the freezer / refrigerator compartment connector 101 to the refrigerator compartment door opening / closing sensor 410, the refrigerator compartment interior light 411, and the refrigerator compartment temperature sensor 412, respectively.
108 is connected.

At this time, as shown in FIG. 15, a groove is provided in the back inner wall 11 of the freezing / refrigerating compartment 1 so that the cables 106, 107, 108 do not hinder the circulation of cold air, and the cable passage 109 is formed. Make, each cable 10 in this
Wire 6, 107, and 108. In addition, the cable 10
The tape 6, 110, and 108 are fixed with tape 110 or the like so that they do not protrude from the cable passage 109 on the way.

Each cable 103 to 108 is provided with a one-touch attachable / detachable mini connector 111 near the refrigerator / freezer compartment connector 101. The mini-connector 111 is provided for facilitating maintenance and separate disposal or collection, and is not always necessary. Further, the mini connector 111 may be added if necessary.

The assembly and disassembly method of the above-mentioned electric wiring and parts related to the electric wiring will be described.

At the time of assembly, when attaching the refrigerator compartment electric component mounting plate 413, as shown in FIG. 16, first, it is fixed to the outer plate of the heat insulating box 3 with screws 112 or the like, and then urethane foam is foamed.

At the time of disassembling, the freezing / refrigerating room 1 is separated from the machine room 2 and the mini connector 111 is removed. Next, remove the screw 112 fixing the refrigerator compartment electric component mounting plate 413,
The refrigerator compartment electric component mounting plate 413 is pulled out from the heat insulating box 3. At this time, the cables 106, 107, 108 wired to the refrigerating compartment electric component mounting plate 413 are separated from the heat insulating box 3 together with the refrigerating compartment electric component mounting plate 413.

In FIG. 16, the refrigerator compartment door opening / closing sensor 410, the refrigerator compartment interior lamp 411, the temperature sensor 412, and the cables 106, 107, 108 are not shown in cross section but in outline.

Assembly and separation of the freezer compartment electrical component mounting plate 708 are carried out by fixing to the freezer / refrigerator compartment connector 101 with a screw or the like and removing the screw or the like.

According to this embodiment, mechanical parts, electric parts,
Since the heat insulating material and the like can be easily separated, it is possible to dispose or collect each material. Furthermore, in separating each unit, the cold air passages and electrical connections are reproducibly separated,
Maintenance can be performed easily.

Another embodiment of electric wiring will be described with reference to FIGS. 17 to 19. FIG. 17 is a detailed view of the XII portion of FIG. 5 relating to this embodiment. 18 is a perspective view of a cross section taken along the line XIV-XIV in FIG. 1 according to this embodiment. 19 is a sectional view taken along the line XIX-XIX in FIG.

As shown in FIGS. 17 and 18, a tube 113 is provided inside the back inner wall 11 of the freezer / refrigerator 1 made of resin such as urethane foam or a vacuum heat insulating material, and the cable 1
06, 107 and 108 are wired in this. The cables 106, 107, 108 coming out of the cylinder 113 are connected to a refrigerator compartment door opening / closing sensor 410, a refrigerator compartment interior light 411, and a refrigerator compartment temperature sensor 412, respectively.

Further, as shown in FIG. 19, the cylinder 113 is
At the time of assembly, the back inner wall 11 is fixed to the resin portion of the inner back wall 11 with a tape 110 or the like so as not to be displaced before foaming the urethane.

In this embodiment, the cylinder 113 and the back inner wall 1
If you unify the material of the resin part of 1 to polypropylene etc.,
It is not necessary to separate the tube 113 from the freezing / refrigerating chamber 1 at the time of dismantling, which facilitates the processing.

The dismantling can be carried out in the same manner as in the previous embodiment, but the cables 106, 107 and 108 are contained in the tube 113, so that they can be separated from the freezing / refrigerating chamber 1 more easily.

Another embodiment of electric wiring will be described with reference to FIGS. 20 and 21. FIG. 20 is a detailed view of the XII portion of FIG. 5 relating to this embodiment. FIG. 21 shows XXI- of FIG.
It is a XXI arrow sectional view.

In this embodiment, as shown in FIGS. 20 and 21, the back inner wall 11 of the cables 106, 107, 108 is formed.
The portion to be wired inside is covered with the adhesive tape 114 and fixed to the resin portion of the back inner wall 11.

As shown in FIG. 21, the adhesive tape 114 does not adhere to the entire outer circumferences of the cables 106, 107 and 108, so the fixing force of the cables 106, 107 and 108 to the resin portion of the back inner wall 11 is not so great. It is not strong and can be separated by pulling it out of the freezer compartment 1. Therefore, the adhesive tape 114 provided as in this embodiment
However, the same effect as that of the cylinder 113 of the above-described embodiment can be obtained.

However, the cables 106, 107, 108
When the fixing force of the back inner wall 11 to the resin portion becomes strong and there is a possibility that it cannot be pulled out at the time of disassembling, in the adhesive tape 114, all or a part of the portion of the back inner wall 11 that is adhered to the resin portion may be removed. It may be adhesive.

According to this embodiment, it is possible to provide a refrigerator which has a simple structure and which can be easily separated and discarded.

Another embodiment of electric wiring will be described with reference to FIGS. 22 to 24. ◆ FIG. 22 shows another structure of the machine room 2 of FIG. FIG. 23 is a perspective view of the refrigerating / refrigerating chamber 1 in this embodiment as viewed from the back side. FIG. 24 is a sectional view taken along the line XXIV-XXIV in FIG.

As shown in FIG. 22, a multi-core cable 115 that directly goes out from the electric control device 36 is provided, and a refrigerator compartment connector 116 is provided at the tip of the multi-core cable 115.

Further, as shown in FIG. 23, the freezing / refrigerating room 1
A connector 117 for electric components in the refrigerator compartment is provided on the upper right side of the rear surface of

Further, as shown in FIG. 24, the refrigerating compartment door opening / closing sensor 410, the refrigerating compartment interior light 411, and the refrigerating compartment temperature sensor 412 are attached to the refrigerating compartment electrical component mounting plate 413,
The refrigerator compartment electric component mounting plate 413 is screwed to the heat insulation box body 3 for the refrigerator compartment.

A refrigerating compartment electrical component connector 117 is attached to the refrigerating / refrigerating compartment heat insulating box 3, and a refrigerating compartment electrical component connector 117, a refrigerating compartment door opening / closing sensor 410, a refrigerating compartment interior light 411, and a refrigerating compartment temperature are provided. The sensor 412 is the cable 11
They are connected at 8, 119 and 120.

Incidentally, in FIG. 24, the connector 117,
Cables 118, 119, 120, refrigerator compartment door opening / closing sensor 410, refrigerator compartment interior light 411, refrigerator compartment temperature sensor 412
Shows the outline, not the cross section.

Electrical connection between the machine room 2, the refrigerator compartment door opening / closing sensor 410, the refrigerator compartment interior light 411, and the refrigerator compartment temperature sensor 412 is made by connecting the refrigerator compartment connector 116 to the refrigerator compartment electrical component connector 117. Be done. At this time, the multi-core cable 115 is provided outside the refrigerator body.

As shown in FIG. 23, the connector 11
The surface on which 7 is provided is one step lower than the back surface, and the multi-core cable 115 is also routed along this lowered surface.
There is no contact with walls.

Next, the assembling method in this embodiment will be described. ◆ At the time of assembly, first, the refrigerator compartment door opening / closing sensor 410, the refrigerator compartment interior light 411, and the refrigerator compartment temperature sensor 412 are fixed to the refrigerator compartment electric component mounting plate 413, and the cables 118, 1
19 and 120 are connected to the refrigerator compartment electrical component connector 117 and fixed to the outer plate of the heat insulating box 3 before foaming urethane with screws or the like. Then, urethane is foamed.
Finally, the machine room 2 and the freezer / refrigerator compartment 1 are connected to each other, and the refrigerator compartment connection connector 116 is connected to the refrigerator compartment electrical component connector 117.

When dismantling, the refrigerator compartment connector 116 is removed, and the multi-core cable 115 and the refrigerator compartment connector 116 are removed.
Since it is attached to the electric control device 36, these parts can be processed together.

Further, by removing the screws 112 or the like fixing the refrigerating compartment electrical component mounting plate 413 to the heat insulating box 3 and strongly pulling the refrigerating compartment electrical component mounting plate 413 from the inside of the refrigerating compartment 4, The component mounting plate 413, the refrigerator compartment door opening / closing sensor 410, the refrigerator compartment interior light 411, the refrigerator compartment temperature sensor 412, and the refrigerator compartment electrical component connector 117 can be collectively removed from the heat insulating box 3.

According to the present embodiment, since the electric wiring is configured outside, the electric wiring of the freezing / refrigerating room 1 and the machine room 2 can be attached and detached very easily, so that the separate disposal and maintenance can be performed more easily. Easy and reliable implementation.

Next, the machine room 2 is replaced with the cycle room unit 42.
An embodiment in which the electric room unit 43 and the electric room unit 43 are divided into two units will be described with reference to FIG.

FIG. 25 is a perspective view of the machine room 2 as seen from the back side, and shows a cycle room unit 42 and an electric room unit 43.
Indicates that they are separated.

The cycle chamber unit 42 includes many components or members common to the configuration of the machine chamber 2 shown in FIGS. 1 and 6. That is, the heat insulation box 21 for machine room, the cooler 29, the cool air circulation fan 30, the cool air circulation fan drive motor 31, the refrigerator compartment temperature adjustment damper 32, and the drainage pipe 3.
4, evaporating dish 35, base 20, radiator plate 22, radiator 23, compressor 24, compressor cooling fan 25, cooling fan motor 26, machine room connector 102, height adjusting leg 27, moving Includes casters 28.

Furthermore, the cycle chamber unit 4 of this embodiment
25, a cycle chamber connector 44 and an electric chamber attaching / detaching hole 45 are provided on the surface to which the electric chamber unit 43 is connected.

As shown in FIG. 25, the electric chamber unit 43 is composed of an electric control unit 36, an attachment 46 which can be attached / detached to / from the cycle chamber unit 42 with one touch, an electric chamber connector 47 and the like.

To connect the electric chamber unit 43 and the cycle chamber unit 42, the attachment 45 is attached to the electric chamber attaching / detaching hole 45.
It is done by inserting into. At this time, the cycle chamber connector 44 and the electric chamber connector 47 are simultaneously connected. The components of the cycle chamber unit 42 and the electric chamber unit 43 and the attachment / detachment means are not limited to those described above.

According to this embodiment, when the electric control device 36 fails, only the electric control device 36 can be removed, so that maintenance can be easily performed. Especially, it is effective for a repair method by replacing parts.
Further, even if the electric control device 36 is separated, the passage of the cool air is not opened, so that the adverse effect on the storage state of the stored items is minimal.

Next, two embodiments will be described with reference to FIG. 26 and FIG. 27, respectively, in which a hole for sealing the refrigerant in the machine room 2 or a hole for draining the refrigerant and oil at the time of disassembly is provided.

FIG. 26 is a rear view of the refrigerator of this embodiment, in which a compressor 24 is filled with a refrigerant, a dedicated pipe for removing the refrigerant and oil, that is, a process pipe 48, and a heat insulating box 21 for a machine room. An example is shown in which an inlet / outlet hole 49 that is an inlet / outlet of a coolant or the like is provided on the back surface.

The method of use of this embodiment will be described for assembling and disassembling. During assembly, at the final stage, a refrigerant enclosing jig (not shown) is inserted through the inlet / outlet hole 49 to be connected to the process pipe 48 to enclose the refrigerant. On the other hand, at the time of disassembling, similarly, a removing jig (not shown) is inserted through the inlet / outlet hole 49 and coupled with the process pipe 48 to remove the refrigerant, oil and the like.

According to this embodiment, after the refrigeration cycle is completed, the work of filling the refrigerant or the like can be easily carried out.
This has the effect of increasing work efficiency. On the other hand, at the time of dismantling, it is necessary to first remove the refrigerant, oil, etc., but the work is easy and the work efficiency is increased.

The treatment of the refrigerant and the like used in the refrigeration cycle has become a serious environmental problem, and facilitating the work according to the present embodiment and the like not only improves work efficiency,
It is motivated to surely process the refrigerant and the like.

FIG. 27 is a bottom view of the refrigerator,
Another embodiment is shown in which an inlet / outlet hole 49 is provided on the lower surface of the refrigerator. As shown in FIG. 27, an access hole 49 is provided on the bottom surface of the refrigerator.
The object of the present invention can be achieved even by providing.

According to this embodiment, since the entrance / exit hole 49 is formed on the lower surface of the refrigerator, it is advantageous for dust and dirt to enter the refrigerator, and the appearance is not lost.

In contrast to the above embodiment, instead of the inlet / outlet hole 49, a coolant inlet / outlet such as a notch or a mark is provided,
A pipe of the refrigeration cycle may be provided near the inlet / outlet of the refrigerant or the like. In particular, when the entrance / exit hole 49 is formed on the lower surface of the refrigerator as in the embodiment of FIG. 27 and the location of the hole is difficult to understand, it is effective to clearly indicate the location by a notch or a mark.

Another embodiment of the refrigerator according to the present invention will be described with reference to FIG. ◆ FIG. 28 is a perspective view of the refrigerator of this embodiment. In the refrigerator of this embodiment, most of its components are the same as those of the embodiment of FIG. Therefore, description of these is omitted, and only the characteristic parts of the present embodiment will be described.

First, the machine room 2 will be described. ◆ The surface of the machine room 2 on which the cold air leakage prevention packing 33 is provided is flush with the machine room 2 and is perpendicular to the relative movement direction of the machine room 2 and the freezing / refrigerating room 1 when they are connected. .
A caster 28 for movement is provided on the lower surface of the machine room 2. Further, the width of the base 20 is narrower than the width of the freezing / refrigerating room 1, and the width of the machine room heat insulating box 21 is the same as the width of the freezing / refrigerating room 1.

On the other hand, the freezing / refrigerating compartment 1 is provided with height adjusting legs 27 on the lower surface, and a protrusion 50 for providing the rear side height adjusting legs 27 is provided on the lower rear side. Further, a part of the upper surface of the protruding portion 50 also serves as a slide surface for supporting and sliding the side surface step portion 51 of the machine room 2.

Further, between the freezing / refrigerating room 1 and the machine room 2, there is provided a means 52 for fixing the cold air leakage prevention packing 33 so as to be in close contact with it. For example, the hook 52a is provided in the freezer compartment 1.
And a ring in the machine room 2, one end of which is connected to the ring,
Pulling means 5 consisting of a spring, the other end of which is connected to the machine room 2.
2b is provided.

Next, a method for connecting the freezing / refrigerating room 1 and the machine room 2 will be described. ◆ Freezing / refrigerating room 1 has height adjusting legs 27
Is independent by. The machine room 2 is inserted into the freezing / refrigerating room 1 from the back side of the freezing / refrigerating room 1. At this time, the side surface step portion 51 is placed on the slide surface of the protruding portion 50, and is slid and inserted.

After the freezing / refrigerating room 1 and the machine room 2 are connected, in order to further secure the connection, they are fixed by the fixing means 52. At the same time, the machine room connector 102 is joined to the freezer / refrigerator room connector 101 as in the above-described embodiment.

Further, another embodiment is shown in FIG. ◆ The surface on which the cold air leakage prevention packing 33 is provided is different from the relative moving direction when the machine room 2 and the freezing / refrigerating room 1 are connected.
Although it is ideal to have a vertical configuration, it is also possible to provide an inclination in practice as shown in FIG. However, it is desirable that the fixing means 52 generate a coupling force between the fixing means 52 in the direction perpendicular to the surface where the packing of the machine room 2 or the freezing / refrigerating room 1 is provided and connected at the time of connection.

In this embodiment, the machine room connector 1 and the freezer / refrigerator room connector 101 are connected in the same direction as the connecting force of the fixing means 52.
02 has a slidable structure. After the freezing / refrigerating room 1 and the machine room 2 are connected, the mechanical room connector 102 is slid and joined to the freezing / refrigerating room connector 101.

According to this embodiment, since there is no need to move the freezing / refrigerating chamber 1 in the vertical direction at the time of connection, the work is easy and there is no fear of collapse of the stored items. Also,
Since the freezing / refrigerating room 1 having a high height is made to stand by itself and the machine room 2 having a heavy weight is attached below the freezing / refrigerating room 1, a stable structure can be obtained.

[0136]

According to the refrigerator of the present invention, the electric parts and electric wirings of the machine room and the freezing / refrigerating room, which are mainly made of a metal material, can be easily separated from the freezing / refrigerating room.
Disposal or collection by material becomes easy.

Further, since it is possible to separate the electric room in which electric parts are concentrated from the machine room (cycle room) mainly made of a metal material, it becomes easier to more strictly dispose of or collect each material.

Further, by providing a hole for sealing or withdrawing the refrigerant or oil in the machine room, an entry / exit hole such as a notch or a mark, and providing a pipe for enclosing or withdrawing the refrigerant or oil in the vicinity thereof, After the refrigeration cycle is completed, the work of filling the refrigerant or the like becomes easy. Further, at the time of disassembling, it is necessary to first remove the refrigerant or the like, but the position of the pipe for connecting the jig for removal can be known from the outside, which facilitates the work.

[Brief description of drawings]

FIG. 1 is a perspective view showing a refrigerator / freezer compartment unit and a machine compartment unit of a refrigerator of the present invention in a separated state.

FIG. 2 is a sectional view taken along the line II-II of FIG.

3 is a sectional view taken along the line III-III of FIG.

FIG. 4 is a sectional view taken along the line IV-IV in FIG.

FIG. 5 is a perspective view of the freezing / refrigerating compartment unit of the present invention viewed from the back side.

6 is a sectional view taken along the line VI-VI of FIG.

7 is a sectional view taken along the line VII-VII of FIG.

FIG. 8 is a vertical cross-sectional side view showing a state in which the refrigerating / freezing room unit and the machine room unit of the present invention are connected.

9 is a sectional view taken along the line IX-IX in FIG.

FIG. 10 is a detailed view of an X portion of FIG.

FIG. 11 is a detailed view of a XI portion of FIG.

FIG. 12 is a detailed view of a section XII in FIG.

FIG. 13 is a detailed view of a section XIII in FIG.

14 is a cross-sectional view taken along the line XIV-XIV of FIG.

15 is a cross-sectional view taken along the line XV-XV of FIG.

16 is a cross-sectional view taken along the line XVI-XVI of FIG.

FIG. 17 is a detailed view of the XII portion of FIG. 5 in another embodiment.

18 is an XIV-XIV of FIG. 1 according to another embodiment of the present invention.
FIG.

19 is a cross-sectional view taken along the line XIX-XIX in FIG.

FIG. 20 is a detailed view of the XII portion of FIG. 5 in another embodiment.

21 is a sectional view taken along the line XXI-XXI of FIG.

FIG. 22 is a perspective view of another embodiment of the machine room unit of the present invention.

FIG. 23 is a perspective view of another embodiment of the refrigerating compartment unit of the present invention.

24 is a sectional view taken along the line XXIV-XXIV in FIG.

FIG. 25 is a perspective view of a machine room unit related to the cycle room unit and the electric room unit of the present invention.

FIG. 26 is a view showing the back surface of the refrigerator of the present invention in which a hole for sealing the refrigerant is provided.

FIG. 27 is a diagram showing a lower surface of a refrigerator in another embodiment of the present invention in which a hole for sealing a refrigerant is provided.

FIG. 28 is a view showing a refrigerator according to another embodiment of the present invention.

FIG. 29 is a view showing a refrigerator according to another embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Freezing / refrigerating room unit, 2 ... Machine room unit, 3 ... Insulating box for freezing / refrigerating room, 4 ... Refrigerating room, 6 ... Refrigerating room door, 7 ...
Freezing room, 8 ... Freezing room door, 9 ... Vegetable room, 10 ... Vegetable room door,
18 ... Vertical fixing plate, 19 ... Horizontal plane positioning mechanism, 20 ... Base, 21 ... Machine room heat insulating box, 22 ... Radiator plate, 23 ... Radiator, 24 ... Compressor, 25 ... Compressor cooling fan, 29 ... Cooler, 30 ... Cold air circulation fan, 32 ... Refrigerator temperature adjusting damper, 33 ... Cold air leak preventing packing, 34 ... Drain pipe, 35 ... Evaporating dish, 36
... electric control device, 40 ... electric chamber unit, 41 ... cycle chamber unit, 44 ... cycle chamber connector, 45 ... electric chamber attachment / detachment hole, 46 ... attachment, 47 ... electric chamber connector, 48 ... process pipe, 49 ... entrance / exit hole , 101 ...
Freezer / Refrigerator room connector, 102 ... Machine room connector.

 ─────────────────────────────────────────────────── --- Continuation of the front page (72) Inventor Mitsuo Sato 800 Tomita, Ohira-cho, Shimotsuga-gun, Tochigi Prefecture Living Equipment Division, Hitachi, Ltd.

Claims (4)

[Claims] 1. A cold air passage for cooling cold air, comprising a freezer compartment, a cold storage compartment, a compressor, a radiator, a cooler, a fan for circulating cold air, and an electric control device, the main body including at least a heat insulating box and a door. In the refrigerator for supplying to the freezing room and the refrigerating room through, a freezing / refrigerating room unit including at least an insulating box and a door, and at least a compressor, a radiator, a cooler, a cool air circulation fan, and an electric control device. And a mechanical connecting unit for attaching and detaching both the freezing and refrigerating compartment unit and the machine compartment unit, and an electrical connection for detaching the electrical connection between the two units. A refrigerator provided with a connecting means and a connecting means of a cold air passage for detachably connecting the cold air passage between both units. 2. A cold passage for cooling cold air, comprising a freezing room and a cold storage room, which are composed of at least a heat-insulating box and a door, a compressor, a radiator, a cooler, a fan for circulating cold air, and an electric control device. In the refrigerator for supplying to the freezing room and the refrigerating room through, a freezing / refrigerating room unit including at least an insulating box and a door, and at least a compressor, a radiator, a cooler, a cool air circulation fan, and an electric control device. And a mechanical connecting unit for attaching and detaching both the freezing and refrigerating compartment unit and the machine compartment unit, and an electrical connection for detaching the electrical connection between the two units. On the opposite side of the connection means, the first and second cold air supply ports to the machine room unit, and the first and second cold air supply ports of the cooler, the cool air from the freezing room and the cold storage room is provided. With an intake, On the surface of the refrigerating / freezing chamber unit facing the first and second cold air supply ports provided in the machine room unit, a cold air intake port to the refrigerating room and the freezing chamber, and a cool air provided to the machine room unit, respectively. Is provided on the surface of the freezing / refrigerating compartment unit facing the intake opening of the freezing compartment and a return opening for cold air from the refrigerating compartment, and a temperature control damper is provided between the first and second cold air supply openings. A cool air circulation fan is provided between the second cool air supply port and the temperature control damper and the cooler, and cool air is provided between the cool air supply port, the intake port, and the return port that face each other. A refrigerator provided with a connecting means for a cold air passage, the passage being detachable. 3. A cold air passage for cooling cold air, comprising a freezing room and a refrigerating room, which are composed of at least a heat insulating box and a door, a compressor, a radiator, a cooler, a fan for circulating cold air, and an electric control device. In the refrigerator for supplying to the freezing room and the refrigerating room through the refrigerator body, at least a refrigerator / refrigerating room unit including a heat insulating box and a door, and at least a compressor, a radiator, a cooler, a cool air circulation fan, and an electric control device. And a machine room unit including a machine room unit, the machine room unit including an electric room unit including at least the electric control device, and a cycle including at least the compressor, the radiator, the cooler, and the cool air circulation fan. A chamber unit, on the opposing surfaces of the cycle chamber unit and the freezer / refrigerator unit, mechanical connecting means for attaching and detaching both units,
Electrical connection means for detachably connecting the electric connections of both units, coupling means for the cool air passages for detachably connecting the cool air passages between the two units, and a surface facing the cycle chamber unit and the electric chamber unit. A refrigerator provided with a mechanical connecting means for attaching and detaching both units, and an electrical connecting means for detachably attaching the electric connection of both units. 4. The machine room or cycle room unit,
A hole for inserting or removing the refrigerant or oil, a cutout, a refrigerant inlet / outlet such as a mark is provided, and a pipe for sealing or withdrawing the refrigerant or oil is provided in the vicinity of the refrigerant inlet / outlet. The refrigerator according to any one of claims 1 to 3.