JP2003161560A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator that keeps a first and a second refrigerating compartments convenient while ensuring a capacity of a freezing compartment. <P>SOLUTION: A refrigerating compartment is divided into an upper-lower pair to define the first refrigerating compartment in the upper section and the second refrigerating compartment in the lower section, a refrigerating evaporator and a refrigerating blower are disposed on the upper back of the first refrigerating compartment, and a main control board is housed on the back of the second refrigerating compartment and outside a heat insulator. The refrigerating compartment and the second refrigerating compartment can ensure relatively large depth dimensions, and the first refrigerating compartment keeps its convenience intact. A defrosting water drainpipe and refrigerant piping from the refrigerating evaporator are passed dividedly on opposite sides of the control substrate housing part. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator having a refrigerating chamber in an upper part and a freezing chamber in a lower part, and more particularly to a refrigerator in which an evaporator is arranged in each chamber.

[0002]

2. Description of the Related Art A refrigerator having a refrigerating chamber at an upper portion and a freezing chamber at a lower portion is disclosed, for example, in Japanese Patent Laid-Open No. 11-311476.

Further, as disclosed in this publication, there is also known a refrigerator having a refrigerating chamber in the upper part, a freezing chamber in the lower part, and an independent evaporator for freezing and refrigerating. This refrigerator has a first refrigerating room, a second refrigerating room, and
It is partitioned from the freezer compartment, the rear part of the upper part of the first refrigerating compartment is provided with a refrigerating evaporator and a refrigerating blower in the rear, and the control board housing part is provided behind the lower freezing compartment and outside the heat insulating material. Provided,
The control board is arranged.

[0004]

In the above-mentioned refrigerator having an independent evaporator for freezing and refrigerating, a freezing evaporator and a freezing blower are arranged in the rear part of the freezing room, and the freezing room is provided behind the freezing room. In addition to the control board, a refrigerant compressor and the like are also arranged outside the heat insulating material, so that the depth dimension of the freezing compartment becomes shallow, and it is attempted to secure the same internal volume of the freezing compartment as the conventional product. If so, the height dimension of the freezer becomes high (the depth dimension becomes deep).

On the other hand, the height of the bottom of the first refrigerator compartment from the floor is
Since the height is set in consideration of usability, the height dimension of the second refrigerating room sandwiched between the first refrigerating compartment and the freezing compartment becomes shorter (becomes shallower), and the PET bottle is set up in the second refrigerating compartment. It was difficult to use the second refrigerating room because it could not be stored or large vegetables such as cabbage and Chinese cabbage could not be stored.

[0006] The present invention provides a refrigerator which is easy to use in the first and second refrigerating compartments while ensuring the capacity of the freezing compartment.

[0007]

SUMMARY OF THE INVENTION According to the present invention, an insulating box body provided with a heat insulating material is divided into upper and middle lower chambers by a plurality of partitions, the upper chamber is a first refrigerating chamber, and the middle chamber is a second refrigerating chamber. The chamber and the lower chamber are used as a freezing room, and a freezing evaporator and a freezing fan are provided in this freezing room, and a rear part of the upper part of the first refrigerating room is provided with a refrigeration evaporator and a freezing fan. In the refrigerator, the control board is housed outside the heat insulating box behind the second refrigerating chamber,
This control board is covered with a cover.

Also, the second refrigerating compartment may be a vegetable compartment,
The container provided with the door of this 2nd refrigerating room is pulled out.

Further, a defrosting water drainage pipe for draining the defrosting water of the refrigerating evaporator to the outside of the refrigerator and a refrigerant pipe from the refrigerating evaporator are provided on the heat insulating material on the side of the control board accommodating portion. Alternatively, the defrosting water drainage pipe and the refrigerant pipe from the refrigerating evaporator are separately passed through both sides of the control board housing portion.

Further, in the control board housing portion, a pipe housing for passing one or both of a defrosting water drain pipe for draining defrosting water of the refrigerating evaporator to the outside of the refrigerator and a refrigerant pipe from the refrigerating evaporator It has a section.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. 1 to 3 show a refrigerator according to a first embodiment, FIG. 1 is an explanatory view showing a front surface of a refrigerator with a door removed, FIG. 2 is a vertical sectional view of the refrigerator, and FIG. Sectional drawing which shows the state which cut | disconnected the vegetable compartment part horizontally, FIG. 4 is a refrigerant circuit diagram.

Referring to FIG. 1, the refrigerator has a heat insulating box 1
By partitioning, the refrigerating compartment (first refrigerating compartment) 31, the vegetable compartment (second refrigerating compartment) 32, and the ice making compartment 33 are arranged in this order from the top.
A (first freezing chamber), a switching chamber 34, and a freezing chamber (second freezing chamber) 35 are arranged. Further, the refrigerating room 31 is provided with a plurality of shelves 70 on which foods are placed.

In FIG. 2, each storage room has a refrigerator compartment door 5
1, the vegetable compartment door 52, the ice making compartment door 53, the switching compartment door 54, and the freezing compartment door 55 close the openings to form respective storage spaces.

A heat insulating partition 2 is arranged in the lower portion of the vegetable compartment 32, and the freezing compartment in the lower portion is partitioned.

The vegetable compartment 32 comprises a container rail 71 fixed to the vegetable compartment door 52 and a vegetable container 72 mounted on the container rail 71. The vegetable container 72 opens and closes the vegetable compartment door 52 forward and backward. You can move back and forth with it.

The rear part of the freezer compartment 35 has a freezing evaporator 2
0 and a blower 21 for freezing are arranged, and the evaporator 10 for refrigerating and the blower 11 for refrigerating are arranged at the upper part of the refrigerating chamber 31 and the rear part thereof is arranged at the crocodile. Below the refrigerating evaporator 10, there is a refrigerating dew tray 12 for receiving defrost water. The defrost water drain pipe 13 communicating with the refrigerating dew tray 12 passes through the heat insulating material, and its end is It is guided onto the evaporation tray 103 in the machine room 101.

Reference numeral 73 denotes a duct, and the duct and the top plate of the heat insulation box body 1 form the ventilation passage 61. Further, the duct 73 and the back plate of the heat insulation box body 1 make the evaporation for refrigeration. A ventilation path is provided in which the container 10 and the refrigeration blower 11 are arranged.

The refrigerating room 31 is divided into three storage spaces 31A, 31B and 31C at the upper, middle and lower sides by the shelf 70,
As shown in FIG. 2, these storage spaces 31A, 31B,
In 31C, the volume of the storage space increases in order from the top. Moreover, the depth dimension increases in this order (A <B <C).

That is, in a storage space such as the lower storage space 31C where it is relatively easy to reach, it is relatively easy to store and take out stored items, so that stored items can be stored deep inside. , In the storage space where it is difficult to reach like the storage space 31A at the top, the depth is small,
The storage is located relatively to the front. For this reason, in the refrigerator of this embodiment, the stored items can be easily stored and taken out, as compared with the conventional refrigerator in which the stored items stored in the depth direction at the same depth as the lower chamber are likely to be dead items. , It is possible to eliminate the fear of storing the stored goods as much as possible and it is easy to use.

A main control board (control board) 41 for controlling the function of the refrigerator is housed behind the vegetable compartment 32, outside the heat insulating material, and covered with a control board cover 43.

The main control board 41 includes a compressor 101, blowers 11 and 12 for circulation in the refrigerator, a blower (not shown) for cooling the compressor, and an opening degree adjuster (not shown) for cooling the compressor. ), Indicator 90, automatic ice maker (not shown), temperature compensating heater (not shown), dew condensation prevention heater (not shown), defrost heater (not shown), three-way valve 86, etc. In addition to this substrate, a sub substrate 91 provided with a dial for setting a temperature is provided in the refrigerator (refrigerator 31
It is located in).

FIG. 4 is a refrigerant circuit diagram of a refrigerator. In the figure, 100 is a compressor, 81 is a muffler,
The sound of the refrigerant flowing from the compressor 100 is reduced. Reference numeral 82 is a heat radiation pipe, 83 is a condenser, 84 is a dew-proof pipe, 85 is a dryer, 86 is a three-way valve, and 87 is a capillary tube, which functions as a pressure reducer. 8
8 is an accumulator, 89 is a suction pipe, 93 is a capillary tube, and this capillary tube is connected in parallel to the capillary tube 87 and the refrigerating evaporator 10.

In the refrigerator thus constructed,
The front part secures an effective storage space for the refrigerating room 31 at the top, and the usability of the upper part of the refrigerating room (first refrigerating room) 31 is improved. Further, since the main control board 41 is housed outside the heat insulating material behind the vegetable compartment (second refrigerating compartment),
The space behind the freezing compartment 35 can be made slightly smaller because there is no storage space for the main control board 41, the depth dimension of the freezing compartment 35 can be secured, and the capacity of the freezing compartment 35 can also be secured. Moreover, the space behind the vegetable compartment 32 does not need to be so large, and the depth dimension of the vegetable compartment 32 is not reduced, so that the depth dimension can be secured. Therefore, the freezer 35
It does not impair the usability of and the usability of the vegetable room 32.

Next, the arrangement of the defrost water drainage pipe 13 and the refrigerant pipe 14 from the refrigerating evaporator 10 of this refrigerator will be described.

In this embodiment, since the main control board housing 42 is provided between the refrigerating evaporator 10 and the machine room 101, the defrosting water drain pipe 13 and the refrigerant pipe 1 of the refrigerating evaporator 10 are provided.
4 must be guided to the machine room 101, bypassing the main control board housing 42. At this time, if the defrosting water drainage pipe 13 and the refrigerant pipe 14 are arranged between the main control board housing 42 and the vegetable compartment 32, the heat insulation becomes thicker for the purpose of ensuring heat insulation for these pipes. It becomes a factor to reduce the internal volume. For the purpose of solving this, the defrosting water drain pipe 13 and the refrigerant pipe 14 are passed to the side of the substrate housing portion 42 as in the first embodiment shown in FIG.

When the defrosting water drain pipe 13 and the refrigerant pipe 14 are arranged close to each other, the low temperature refrigerant pipe 14 may freeze the defrosting water in the defrosting water drain pipe 13 to cause clogging. is there. For the purpose of preventing this, the defrosting water drain pipe 13 and the refrigerant pipe 14 are separately arranged on both sides of the substrate storage 42 as in the second embodiment shown in FIG. The defrosting water drain pipe 13 and the refrigerant pipe 14 are prevented from coming into contact with each other. Incidentally, reference numeral 92 denotes a pipe storage portion, which is provided in the control board storage portion 42.

In the second embodiment as shown in FIG. 5, since the defrosting water drain pipe 13 of the refrigerating evaporator and the refrigerant pipe 14 from the refrigerating evaporator can be arranged separately, the defrosting water The drainage pipe is hard to be cooled by the refrigerant pipe, and it is possible to prevent the defrosting water from freezing and blocking the inside of the pipe.

When both the defrosting water drain pipe 13 and the refrigerant pipe 14 cannot be arranged on the side of the substrate housing portion 42 due to space limitations, as in the third embodiment shown in FIG. Of the water drain pipe 13 and the refrigerant pipe 14 from the refrigeration evaporator,
For example, the defrosting water drainage pipe 13 may be provided in the pipe housing 92.

In particular, when one of the two pipes is arranged in the pipe housing 92 as shown in FIG. 6, the two pipes are installed separately from each other. It is difficult to cool the refrigerant pipe from the evaporator, and it is possible to prevent the defrost water from freezing and blocking the inside of the pipe.

It should be noted that, for the sake of space, the defrosting water drain pipe 13
When both the refrigerant pipe 14 and the refrigerant pipe 14 cannot be arranged on the side of the substrate housing portion 42, the pipe housing portion is formed to be slightly larger, and the defrosting water drain pipe 13 and the refrigerant pipe 1 are formed in the pipe housing portion.
Both pipes 4 and 4 may be configured to pass through this pipe storage portion.

[0031]

In the refrigerator of the present invention, since the rear part of the upper part of the first refrigerating room at the uppermost part is difficult to use, the frequency of use is relatively low.
Since the refrigerating evaporator and the refrigerating blower are arranged, not only can the space that has been infrequently used be effectively utilized, but also an effective storage space can be secured on the front side, and the upper part of the first refrigerating chamber can be secured. The usability can be improved. Also,
Since the control board is housed in the outer insulation material behind the second refrigerating compartment, the space behind the freezing compartment can be made slightly smaller and the depth dimension can be secured, and the space behind the second refrigerating compartment is not so much. A large space is not required and the depth dimension of the second refrigerating room can be secured. Therefore, the capacity of the freezing compartment can be secured, and the usability of the freezing compartment and the usability of the second refrigerating compartment are not impaired.

In the invention according to claim 4, since the defrosting water drainage pipe and the refrigerant pipe of the refrigerating evaporator are passed through the heat insulating material portion on the side of the control board housing portion, these defrosting drainage pipe and refrigerant are used. It is not necessary to newly insulate the pipe, and the heat insulating material of the heat insulating box can be effectively used.

In the invention according to claim 5, since the defrosting water drain pipe of the refrigerating evaporator and the refrigerant pipe of the refrigerating evaporator can be arranged separately from each other, the defrosting water drain pipe is cooled by the refrigerant pipe. It is difficult to prevent defrosting water from freezing and blocking the inside of the pipe.

In the invention according to claim 6, either one or both of the defrosting water drainage pipe of the refrigerating evaporator and the refrigerant pipe of the refrigerating evaporator are provided in the storage portion. Either one or both can be arranged, and both pipes can be arranged even when it is impossible due to space constraints.

Particularly, when one of the two pipes is arranged in the storage portion, both pipes can be installed separately,
Similarly to the invention described in claim 5, it is possible to eliminate the risk that the defrosted water freezes and blocks the inside of the pipe.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a front surface of a refrigerator of the present embodiment with a door removed.

FIG. 2 is a vertical sectional view of the refrigerator.

FIG. 3 is a cross-sectional view showing a state in which a vegetable compartment portion of the refrigerator is horizontally cut.

FIG. 4 is a refrigerant circuit diagram of the refrigerator.

FIG. 5 is a cross-sectional view showing a state in which a vegetable compartment portion of the refrigerator of the second embodiment is horizontally cut.

FIG. 6 is a cross-sectional view showing a state in which a vegetable compartment portion of the refrigerator according to the third embodiment is horizontally cut.

[Explanation of symbols]

1 Insulation box 2 thermal insulation partitions 10 Refrigerator evaporator 11 Refrigerator blower 13 Defrost water drain pipe 14 Refrigerant piping 20 Freezing evaporator 21 Blower for freezing 31 Refrigerator Room (First Refrigerator Room) 32 vegetable room (second refrigerating room) 41 Main control board (control board) 43 Control board cover (cover) 52 Vegetable room door (door of the second refrigeration room) 72 Vegetable container (container) 92 Pipe compartment

Continued front page    (72) Takashi Yamakawa, inventor             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. (72) Inventor Junichi Nunodome             2-5-3 Keihan Hondori, Moriguchi City, Osaka Prefecture             Within Yo Denki Co., Ltd. F term (reference) 3L045 AA01 BA01 CA02 CA03 CA04                       DA02 EA01 HA02 PA04                 3L102 JA01

Claims (6)

[Claims] 1. An insulating box body provided with an insulating material is divided into upper, middle and lower chambers by a plurality of partitions, an upper chamber is a first refrigerating chamber, a middle chamber is a second refrigerating chamber, and a lower chamber is a freezing chamber. In the refrigerator provided with a freezing evaporator and a freezing blower in the freezing room, and the rear rear part of the first refrigerating room provided with a cold storage evaporator and a freezing blower, the second cold storage A refrigerator characterized in that a control board is housed outside a heat insulation box in the rear of the room, and the control board is covered with a cover. 2. The refrigerator according to claim 1, wherein the second refrigerating compartment is a vegetable compartment. 3. The second refrigerating compartment is provided with a container that is pulled out together with a door of the second refrigerating compartment.
Or the refrigerator according to 2. 4. A defrosting water drainage pipe for draining defrosting water of the refrigerating evaporator to the outside of the refrigerator, and a refrigerant pipe from the refrigerating evaporator,
The refrigerator according to claim 1, wherein the refrigerator is passed through the heat insulating material on a side of the control board housing. 5. The refrigerator according to claim 4, wherein the defrost water drainage pipe and the refrigerant pipe from the refrigerating evaporator are separately provided on both sides of the control board housing portion. 6. The control board housing section accommodates either one or both of a defrosting water drainage pipe for draining defrosting water of the refrigerating evaporator to the outside of the refrigerator and a refrigerant pipe from the refrigerating evaporator. The refrigerator according to claim 1, further comprising a part.