JPH0247426Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a refrigerator, and more particularly to a structure of a refrigerator that includes two storage chambers and maintains these storage chambers at different temperatures.

[Conventional technology]

2. Description of the Related Art Refrigerators have conventionally been known that include two storage compartments, a so-called chilled compartment and a refrigerated compartment, and the chilled compartment and the refrigerated compartment are separated by a partition plate.
The chilled compartment is maintained at approximately 0° C., and the refrigerator compartment is maintained at a different temperature from the chilled compartment.

[Problem that the invention attempts to solve]

By the way, in the case of the above-mentioned refrigerator, the volumes of the chilled compartment and the refrigerator compartment are limited in advance, so for example, when there are many items to be stored in the chilled compartment and few items to be stored in the refrigerator compartment, all the items are stored in the chilled compartment. There is a problem in that the refrigerator cannot store many items, and conversely, the space in the refrigerator compartment becomes too crowded.

An object of the present invention is to provide a refrigerator having two storage chambers, such as a chilled chamber and a refrigerated chamber, in which the volume of the storage chamber can be changed.

[Means for solving problems]

The present invention provides a refrigerator in which an insulating door is attached to the front side of an insulating box body with an open front side, and the insulating door is opened on the inside of the insulating box body, and the insulating door is opened on the inside of the insulating box body, and the insulating door is installed in a substantially central part of the back side opposite to the front side. 1st
A partition wall having an opening of A back plate having a large number of through holes at predetermined intervals is provided on the front side, and storage chambers extending to the front side and forming first and second storage chambers are provided; An evaporator is disposed in the passageway so as to close the first opening, and in the air passageway, first and second coolers are provided above and below the evaporator, respectively, to send cold air so that the evaporator is on the leeward side. 2 air blowers are disposed, and the partition wall surface located between the evaporator and the first air blower and the partition wall surface located between the evaporator and the second air blower are each provided with a second air blower. A first damper for opening and closing the second opening is provided between the evaporator and the first blower, and a first damper is provided between the evaporator and the first blower. A second damper for opening and closing the third opening is provided between the second blower and the second damper for opening and closing the third opening. The present invention is characterized in that the first and second storage chambers are communicated with the air passage through the second and third openings, respectively.

〔Example〕

The present invention will be explained below using examples.

Referring to FIG. 1, a heat insulating door 2 is attached to the front surface of a heat insulating box 1 having a U-shaped cross section through a packing 1a, thereby forming a refrigerator body. A partition wall 3 having a U-shaped cross section is disposed inside the heat insulating box 1, and a wind passage 4 is formed by the partition wall 3 and the heat insulating wall 1. An opening 3a is formed approximately at the center of the back wall surface of the partition wall 3, and a back plate 5 is disposed at a predetermined interval on the inside of the back wall surface of the partition wall 3, corresponding to this back wall surface. ing. A large number of through holes 5a are formed in this back wall plate 5.
The right side and the left side of the back wall plate 5 are in communication with each other by a.

At a predetermined interval on both side walls of the partition wall 3,
A plurality of support receiving parts 3b are provided, and a partition plate 6 extending in the front direction is disposed on the support receiving part 3b, and first and second storage chambers 7 and 8 are formed by the partition plate 6. be done.

On the other hand, an evaporator 9 is sandwiched between the back surfaces of the heat insulating box 1 and the partition wall 3 so as to close the opening 3a. That is, the air passage 4 corresponding to the back side of the partition wall 3
An evaporator 9 is disposed approximately in the center of the evaporator 9. In the air passage 4, blowers 10 and 11 are arranged above and below the evaporator 9, respectively.

Furthermore, an opening 3c is formed in the partition wall surface located between the evaporator 9 and the blower 10, and an opening 3d is formed in the partition wall surface located between the evaporator 9 and the blower 11. These openings 3c and 3
A damper 20 is installed on each partition wall 3 corresponding to d.
and 21 are provided, and dampers 20 and 2 are provided.
1 opens and closes the openings 3c and 3d, respectively.

A compressor 1 is mounted on a support stand 12 that supports the refrigerator body.
3, a condenser 14, and a blower 15 are arranged, and a refrigerant circuit is constituted by these compressor 13, condenser 14, etc., and the above-mentioned evaporator 9. Note that temperature detectors 16 and 17 such as thermistors are arranged in the first storage chamber 7 and the second storage chamber 8, respectively, and based on the detected temperatures of these temperature detectors 16 and 17, as will be described later, Blower 10 and 11 are controlled respectively.

Here, the operation of the above-described refrigerator will be described with the first storage chamber 7 as a chilled chamber and the second storage chamber 8 as a refrigerated chamber.

In a normal case, the partition plate 6 is supported by the support receiving part 3b at the center thereof, as shown by the solid line in FIG. In this state, the chilled compartment 7 and the refrigerator compartment 8 have the same volume.

While circulating the refrigerant in the refrigerant circuit, the blower 1
Drives 0 and 11. The air cooled by the evaporator 9 passes through the air passage 4 by the blower 10 and is blown into the chilled chamber 7 through the upper air outlet 18. The air in the chilled chamber 7 flows through the through holes 5 formed in the back plate 5.
a, and reaches the evaporator 9 from the opening 3a of the partition wall 3, where it is cooled. In this way, the chilled chamber 7 is cooled. Further, the air cooled by the evaporator 9 passes through the air passage 4 by the blower 11 and is blown out into the refrigerator compartment 8 through the lower outlet 19 . The air in the refrigerator compartment 8 flows through the through holes 5 formed in the back plate 5.
a, and reaches the evaporator 9 from the opening 3a of the partition wall 3, where it is cooled. In this way, the refrigerator compartment 8 is cooled.

The temperatures of the chilled compartment 7 and the refrigerated compartment 8 are detected by temperature detectors 16 and 17, respectively, and compared with the preset chilled compartment temperature and refrigerated compartment temperature, respectively. Based on the comparison results, the blower 1 is
0 and 11 are drive controlled.

On the other hand, as the above-mentioned detected temperature approaches the set temperature, the dampers 20 and 21 are driven to open the openings 3c and 3b, respectively, so that the temperature of the chilled compartment 7 and the refrigerator compartment 8 are controlled to reach the set temperature. be done. Note that when the dampers 20 and 21 open the openings 3c and 3d, respectively, if the dampers 20 and 21 close the air passages, the inside of the chilled compartment 7 and the refrigerator compartment 8 can be closed. air can be circulated.

By the way, when there are few items to be stored in the chilled compartment 7 and many items to be stored in the refrigerated compartment 8, the partition plate 6 is raised upward and supported by the support receiving part 3b, as shown by the broken line in FIG. Set up By this,
The volume of the chilled compartment 7 is reduced and the volume of the refrigerator compartment 8 is increased.

Even in this state, the blower 1 is installed in the chilled chamber 7.
Cold air is sent from air blower 1 to refrigerator compartment 8.
Cold air is sent from 1. In other words, the chilled compartment 7 and the refrigerated compartment 8 are each independently cooled.

In the above-described embodiment, openings were formed in each of the chilled compartment and the refrigerating compartment to provide a damper, but these openings and the damper may be provided in either the chilled compartment or the refrigerating compartment.

[Effect of idea]

As explained above, in the present invention, the first and second
Not only can the volume of the storage chambers be changed, but also the first and second dampers can be driven and controlled to circulate the cool air that has passed through the evaporator to each storage chamber, and the cold air can be circulated from each storage chamber to the evaporator. of air can be circulated to each storage chamber without passing through an evaporator. In other words, each storage chamber can be cooled independently, and since the evaporator can be substantially separated for each storage chamber, the temperature of each storage chamber can be precisely controlled to the set temperature. As a result, there is an effect that the temperature distribution in each storage chamber can be maintained better.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an embodiment of a refrigerator according to the present invention. 1... Insulated box body, 2... Insulated door, 3... Partition wall, 4... Air passage, 5... Back plate, 6... Partition plate, 7... First storage room (chilled room), 8...Second storage room (refrigeration room), 9...Evaporator, 10,1
1...Blower, 12...Support stand, 13...Compressor, 14...Condenser, 15...Blower, 16,1
7... Temperature detector, 18... Upper air outlet, 19...
...Lower air outlet, 20, 21...damper.

Claims (1)

[Claims for Utility Model Registration] 1. A refrigerator in which an insulating door is attached to the front side of an insulating box body with an open front side, the front side being opened inside the insulating box body and a back side opposite to the front side. A partition wall having a first opening is provided approximately in the center of the partition wall, and an air passageway extending along the partition wall and reaching the front surface is formed between the insulation box and the partition wall, and the partition wall A back plate having a large number of through holes at predetermined intervals is provided on the front side corresponding to the back side of the housing, and a partition plate extending to the front side and forming first and second storage chambers is provided. Further, an evaporator is disposed in the air passage so as to close the first opening, and the evaporator is disposed on both upper and lower sides of the evaporator in the air passage so that the evaporator is located downstream of the evaporator. First and second blowers for sending cold air are arranged, and the partition wall surface is located between the evaporator and the first blower, and the partition wall surface is located between the evaporator and the second blower. Second and third openings are respectively formed in the partition wall surface, and a first damper for opening and closing the second opening is provided between the evaporator and the first blower. A second damper for opening and closing the third opening is provided between the evaporator and the second blower, and a second damper for opening and closing the third opening is provided between the evaporator and the second blower. The refrigerator is characterized in that the first and second storage chambers communicate with the air passage through the second and third openings, respectively, when the refrigerator is in the state of the refrigerator. 2 Utility Model Registration Scope of Claim 1 In the refrigerator described in claim 1, the air passage is blocked by the first damper when the second opening is in an open state. , said second
A refrigerator characterized in that when the third opening is in an open state by the damper, the air passage is blocked by the second damper.