JP2001147070A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form a switching chamber that can be switched to a temperature zone other than refrigeration at a lower portion by providing a withdrawal container exclusively for refrigeration at the upper portion of a freezer. SOLUTION: A cooler 18 is arranged at the rear of a freezer, a partition plate 28A is provided in front of the cooler 18 as a cold air generation chamber 19, a refrigerator consists of partition plates 28 and 29 with a blower 20 in front of the cold air generation chamber 19 and is provided with cold air outlets 29a and 28e at upper and lower portions, a cold air distribution chamber 21 with a damper 30 is provided inside the lower cold air outlet 28e, an upper container 23 that consists of inner and outer cases 23A and 23B and passes cold air between them is provided in front of a higher position than the lower cold air outlet 28e, the upper container 23 is converted with a lid body 27 provided with an opening, corresponding to the cold air outlet 29a as a withdrawal container 23 exclusive for refrigeration, a lower part is set to a switching chamber 9 for switching a room temperature, and return ducts 29b and 31 of cold air are provided between the upper container 23 and the cold air generation chamber 19, and between the rear of the switching chamber 9 and the cold air generation chamber 19, respectively.

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 switching room capable of switching between freezing and a temperature zone other than freezing.

[0002]

2. Description of the Related Art An outer box as shown in FIG.
The inside of a heat-insulating box 51 composed of 52, an inner box 53, and a heat-insulating material 54 is partitioned by a heat-insulating partition 55, 56 into a refrigerator compartment 57, a vegetable compartment 58, and a freezing compartment.
59, and the opening of the freezing compartment 59 is divided into upper and lower parts by a heat insulating partition body 60, and dedicated doors 61, 6 are respectively provided.
2, 63, 64 are provided, and the door 61 of the refrigerator compartment 57 is located at the upper part, so that one side is pivotally opened and closed freely, and the door 62 of the vegetable compartment 58 and the door 63, 64 of the freezer compartment 59 are either The drawers are also of a drawer type, and frame-shaped supports 68, 69, and 70 for supporting drawer containers 65, 66, and 67, respectively, are integrally provided behind them.

[0003] Behind the vegetable room 58 is a cold air generation room 71,
A cooler 72 for generating cold air for the refrigerator compartment 57 and the vegetable compartment 58, and a blower 73 for forcibly circulating the generated cool air are arranged, and the generated cool air is passed through a duct 74 to the refrigerator compartment. It is supplied from 57 to a vegetable room 58, and returns to the lower part of the cool air generation room 71. Further, behind the freezing room 59, there is another cool air generating room 75, in which a cooler 76 and a blower 77 dedicated to the freezing room 59 are arranged, and the generated cool air is supplied from a cool air outlet in front of the blower 77. The temperature is supplied to the freezer compartment 59, and the temperature in the freezer compartment 59 is detected by a temperature sensor (not shown), and the compressor 78 is turned on / off so as to reach a predetermined temperature.
It is supposed to.

[0004] As another example, in addition to the above-described refrigerator compartment, vegetable compartment, and freezer compartment, the user can adjust the room temperature (inside temperature) according to the intended use by freezing and other than freezing. Some rooms have a switching room that can be switched to a belt.

[0005]

However, in the two examples described above, the former is inconvenient for the user because there is no switching room capable of switching the room temperature between freezing and a temperature zone other than freezing. In addition, the latter is convenient because it has a switching room, but the switching room is also provided with a dedicated door, so the amount of work required for assembling and installing the door is large, and in terms of productivity, It is disadvantageous, and a gasket is installed around the door inner plate to prevent cold air from leaking.However, the more doors, the more gasket is used and the cost increases. . Therefore, in the present invention, provided with a switching room that can be switched to a temperature zone other than freezing and freezing,
It is another object of the present invention to provide a refrigerator capable of improving productivity and reducing costs.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has a plurality of heat insulating partitions formed by filling a heat insulating material between an outer box and an inner box. A cold room is divided into a refrigerator compartment, a vegetable compartment, and a freezer compartment by a body, a cooler is installed behind the freezer compartment, a first partition plate is provided in front of the cooler, and a cool air generating chamber equipped with the cooler is provided. And a second partition plate and a third partition plate provided with a blower of a blower for forced air circulation in front of the cool air generation chamber, and cool air blown by the blower is supplied to upper and lower cold air outlets. And a damper is provided in the cold air outlet passage at the lower part of the cool air distribution chamber, and the upper container is located at a position higher than the lower position of the cool air outlet, and the lower container is located at a lower position. The upper container is provided so that it can be freely taken in and out. And a gap between them is provided.A cool air inlet is provided at the front and left and right upper end surfaces, while a cool air inlet is provided at the lower rear portion, and the upper portion is provided at the upper opening surface of the outer case. The upper container is covered with a lid having an opening corresponding to the cool air outlet, and the upper container is used as a drawer dedicated to freezing, and the lower portion is used as a switching room capable of switching to a temperature zone other than freezing and freezing, and provided in the outer case. A first return duct for returning the cold air in the drawer container to the cold air generation chamber between the cold air outlet and the cold air generation chamber,
A second return duct is provided behind the switching chamber to return cold air in the switching chamber to the cold air generation chamber.

The first return duct is provided integrally with the third partition plate, and the second partition plate is provided with an opening through which the first return duct passes.

[0008] Further, an opening for connecting the outlet of the second return duct is provided on the bottom surface on the outlet side of the first return duct.

In addition, the cold air outlets are provided on the lower left and right sides of the rear surface of the outer case, the first return duct communicating with the outlet, and the opening of the second partition plate passing the return duct. And the second return duct are provided on the left and right, respectively.

The left and right side walls of the cold air distribution chamber are formed integrally with one or both of the second partition plate and the third partition plate.

The cool air outlet is formed so as to protrude from the lower left and right sides of the back of the outer case, and a groove for accommodating the opening end of the first return duct is provided on the outer peripheral portion of the outlet. .

[0012] Further, the first partition plate is provided integrally behind the second partition plate.

[0013] Further, the freezer compartment door is of a drawer type which is vertically integrated, and a support for supporting the upper container so as to be able to be taken in and out is provided at an upper rear portion thereof, and a support for detachably supporting the lower container at a lower rear portion. It is configured to have tools.

Further, a switching operation part for switching the room temperature of the switching room between freezing and a temperature zone other than freezing is provided around the opening of the freezing room.

Further, the heating device comprises a heater and a support member for supporting the heater.

Further, the upper end of the third partition plate is bent and extended forward to form a cool air passage between the third partition plate and the upper heat-insulating partition body, and a plurality of cooling air passages are formed toward the opening of the lid of the upper container. Is provided.

Further, a heating device for raising the temperature of the switching chamber to a temperature zone other than freezing is provided between the bottom side of the lower container and the switching chamber.

Further, the heating device comprises a heater portion and a support member for supporting the heater portion.

[0019]

FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described with reference to FIG. FIG. 1 is a side view showing an internal configuration of a refrigerator of a forced air circulation system. In the figure, 1 is an outer box 2 made of a steel plate, an inner box 3 made of a synthetic resin,
A heat-insulating box made of a heat-insulating material 4 and the like.
And a freezer compartment (not shown), and a drawer dedicated to freezing (also referred to as an upper container) 23, which will be described in detail later, is provided at the upper portion of the freezer compartment, and the lower portion is a temperature zone other than freezing and freezing. (Eg, −3 ° C., 0 ° C., + 3 ° C.), and a switching chamber 9 in which a lower container 25 is provided.

The cold air generating chamber 10 provided behind the vegetable room 8
Has a cooler for generating cold air to the refrigerator compartment 7 and the vegetable compartment 8
A blower 13 for sending cool air to a cool air supply passage 12 and circulating the cool air from the refrigerator compartment 7 to the vegetable compartment 8 and further to the lower portion of the cool air generating chamber 10
The refrigerator compartment 7 is provided with a door 14 pivotally supported so as to be openable and closable, and the vegetable compartment 8 is provided with a drawer-type door 17 provided with a support 16 for supporting a drawer container 15.

On the other hand, behind a freezing room provided with an upper container 23, a lower container 25 and the like, a cool air generating chamber 19 provided with a cooler 18 is provided, and the generated cool air is transferred to the upper container 23 and the lower container 25 (switching chamber 9). Cold air distribution chamber 2 with blower 20 etc. forcibly circulating
1. A first return duct for returning cold air in the upper container 23 to the cold air generation chamber 19, and cool air in the switching chamber 9 to the cold air generation chamber 19
There is a second return duct etc. for returning to
These will be described later in detail.

The door 22 in front of the upper container 23 and the lower container 25 is of an integrated drawer type, and a pair of right and left supports 24 for supporting the upper container 23 in a freely removable manner are provided at the rear upper portion thereof. The lower part is provided with a support 26 for detachably supporting the lower container 25.

FIG. 2 shows the relationship between the drawer-type door 22 and the upper container 23 and the lower container 25 in three dimensions. When the door 22 is pulled, only the lower container 25 is supported by the support 26. The upper container 23 is pulled out, and is left in the refrigerator (9) in order to suppress an unnecessary rise in temperature. The upper container 23 can be pulled out if necessary, and a lid 27 is covered on the upper opening surface. .

Hereinafter, the upper container 23 and its lid 27 will be described. FIG. 3 shows the upper container 23 and its lid 27 obliquely from the rear. The upper container 23 has an inner case 23A and an outer case 23.
B, and a gap is formed between the two, and a plurality of cold air inlets 23 are provided respectively on the front and left and right upper end surfaces (flanges) 23a and 23b of the inner case 23A.
c and 23d are provided, and a handle 23e is provided on the front surface of the outer case 23B, while flanges 23 are provided on the left and right of the opening.
f, a cool air outlet 23g is protrudingly provided on the lower left and right sides of the rear surface, and a first return duct (29
The configuration is such that a groove 23h for accommodating the opening end of b) is provided.

Openings 27a corresponding to two cool air outlets provided on the ceiling of the freezer compartment are provided on the right and left rear portions of the lid 27, and the cool air supplied from the openings 27a allows the inside of the upper container 23 to be cooled. Is cooled and used as a drawer dedicated to freezing.

FIG. 4 shows a lower drawer container (lower container) 25.
This drawer container 25 is characterized in that the rear wall is lowered to make it easier for cool air from a cool air outlet described later to pass through the drawer container 25.

FIG. 5 is an enlarged view of a main part for explaining the embodiment of the present invention in more detail, and FIG. 6 is an upper container 23 and a switching chamber 9 (lower container 25) for generating cold air for freezing only. FIG. 2 shows an example of a component necessary for circulating the oil through the air. By the way, in order to form the switching room 9 as shown in FIG. 5, a cooler 18 is first installed behind one room originally partitioned as a freezing room, and a first partition plate is provided in front of the cooler 18. By erecting 28A, a cool air generation chamber 19 provided with a cooler 18 is completed.

The cool air generated by the cooler 18 is taken into the cool air generation chamber 19 by a blower 20 for forced circulation of the cool air,
There is a cool air distribution chamber 21 for distributing (supplying) to the upper container 23 dedicated to freezing and the switching chamber 9. The cold air distribution chamber 21 is provided with a second partition plate 28 erected in front of the cold air generation chamber 19 and a front part thereof. And a third partition plate 29 and the like provided upright.

In the present embodiment, the first partition plate 28A is provided integrally behind the second partition plate 28, and the second partition plate 28 is taken in by the blower opening 28a and the blower 20 corresponding to the blower 20. Left and right side walls 28b for guiding the cold air up and down,
28c, an opening 28d for passing an outlet side of a first return duct (29b) to be described later is provided, and a groove 28e 'serving as a cool air outlet 28e toward the switching chamber 9 is provided in the lower center. The damper 30 is attached. On the left and right of the groove 28e ', a duct cover 28g having a U-shaped cross section provided with a plurality of locking sides 28f corresponding to a plurality of locking holes 3a provided in the inner box 3 (the rear slope of the switching chamber 9). And this is inner box 3
And a second return duct 31 for returning the cold air in the switching chamber 9 to the cold air generation chamber 19.

With respect to the second partition plate 28 described above, a third
The partition plate 29 has an upper end bent and extended forward to form a cool air passage 32 between the partition plate 29 and the upper heat-insulating partition body 6, and an opening of the lid 27 covered by the upper container 23 dedicated to freezing. 27a
A plurality of cold air outlets 29a are provided at the lower left and right sides, with the front end corresponding to the cool air outlet 23g provided in the upper container 23 (outer case 23B), and the rear end at the second partition plate 28. And a first return duct 29b for returning the cool air in the upper container 23 to the cool air generating chamber 19, and having a lower end inclined and extended toward the switching chamber 9. The inclined surface 29c is covered with a groove 28e 'provided at the lower front of the second partition plate 28, thereby forming the lower cool air outlet 28e.
Is formed.

As shown in FIG. 5, the upper container 23 is located in front of a position higher than the cool air outlet 28e formed in the lower part of the cool air distribution chamber 21, and has a cover 27 on the upper opening surface of the outer case 23B.
, It is thermally shut off from the switching chamber 9 and becomes a drawer dedicated to freezing, and the switching chamber 9 is completed below.

A second return duct 31 for returning the cold air in the switching chamber 9 to the cold air generating chamber 19 is provided behind the switching chamber 9.
As described above, this is formed by fixing the left and right ends of the duct cover 28g provided integrally with the lower part of the second partition plate 28 to the surface of the inner box 3, and the The upper end opening is connected to an opening formed on the outlet-side bottom surface of the first return duct 29b provided in the third partition plate 29, where the upper container 23 dedicated to freezing and the return from the switching chamber 9 are returned. The cool air merges and returns to the lower part of the cool air generation chamber 19.

Although not shown, a temperature sensor for detecting the cool air temperature returned from the upper container 23 is provided in the first return duct 29b, and the temperature of the switching chamber 9 is provided in the switching chamber 9. Temperature sensors for detecting
Further, between the bottom of the switching chamber 9 and the drawer container 25, there is a heater that is energized when the temperature of the switching chamber 9 is raised from, for example, freezing to a temperature zone other than freezing, and a supporting member that supports the heater. Heating device 33 is provided.
The switching of the temperature of the switching chamber 9 is performed by, for example, an operation unit 34 provided in front of the heat insulating partition 6.

The upper container 23 exclusively used for freezing, the switching chamber 9, and the door 22 have been described above. In the above-described configuration, the inside of the upper container 23 is cooled by the cool air supplied from the cool air outlet 29a and returned. Cool air passes through a gap between the inner case 23A and the outer case 23B, and is returned to a lower portion of the cool air generation chamber 19 through a first return duct 29b provided in the third partition plate 29. The cool air is supplied from a cool air outlet 28e provided in the lower part of the cool air distribution chamber 21, and the returning cool air is returned to the lower part of the cool air generation chamber 19 through the second return duct 31 behind the switching chamber 9.

When the switching chamber 9 is set to a temperature zone other than freezing, a damper 30 provided inside the cool air outlet 28e is provided.
Is closed, the supply of cool air to the switching chamber 9 stops, the heater 33 (heater) is energized, and the temperature of the switching chamber 9 rises due to the heat generated. The temperature of the switching chamber 9 is detected by a temperature sensor (not shown), and the damper 30 is operated as necessary to adjust the temperature.

[0036]

According to the refrigerator described above, the drawer container provided in the upper portion of the freezer compartment has a double structure, and is thermally isolated from the outside by the lid placed on the upper portion. Therefore, even if there is no thick insulated partition in the freezer compartment, the upper container becomes a drawer container exclusively for freezing, and the lower portion can be a switching room capable of switching to a temperature zone other than freezing and freezing. It is convenient because it can be used properly, and because the door is integrated vertically
There is an advantage that the number of parts is reduced, and the assembling time and product cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a refrigerator showing one embodiment of the present invention.

FIG. 2 is a perspective view of a main part showing the embodiment of the present invention.

FIG. 3 is a perspective view of an upper container and a lid thereof according to the embodiment of the present invention.

FIG. 4 is a perspective view of a lower container showing the embodiment of the present invention.

FIG. 5 is an enlarged side sectional view of a main part of the refrigerator showing the embodiment of the present invention.

FIG. 6 is a perspective view of a component showing the embodiment of the present invention.

FIG. 7 is a side sectional view of a refrigerator showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heat insulation box 5, 6 Heat insulation partition body 9 Switching room 18 Cooler 19 Cold air generation room 20 Blower 21 Cold air distribution room 22 Door 23 Upper container 23A Inner case 23B Outer case 23c, 23d Cold air inlet 23e Handle 23g Cold air Outlet 23h Groove 25 Lower container 27 Lid 28A First partition 28 Second partition 28e Cold air outlet 29 Third partition 29a Cold air outlet 29b First return duct 29c Inclined surface 30 Damper 31 Second Return duct 33 heating device (heater)

Claims (12)

[Claims] 1. An interior of a heat insulating box formed by filling a heat insulating material between an outer box and an inner box is divided into a refrigerator room, a vegetable room, and a freezing room by a plurality of heat insulating partitions. A cooler is installed, a first partition plate is provided in front of the cooler to form a cool air generation chamber provided with the cooler, and a blow port of a blower for forced air circulation is provided in front of the cool air generation chamber. A second partition plate and a third partition plate to form a cool air distribution chamber for distributing the cool air sent by the blower to upper and lower cool air outlets, and a cool air outlet passage at a lower portion of the cool air distribution chamber. A damper is provided inside, and an upper container is provided in front of a lower position of the cold air outlet at a higher position, and a lower container is provided so as to be able to be taken in and out of a lower position, and the upper container is formed of an inner case and an outer case. To form a gap between the two,
While providing cool air intakes on the front and left and right top surfaces,
An outlet is provided at the lower part on the back, and the upper container is covered with a lid having an opening corresponding to the cool air outlet on the upper part on the upper opening surface of the outer case, and the upper container is used as a drawer dedicated to freezing, and the lower part is used for freezing. A first return duct for returning the cold air in the drawer container to the cold air generation chamber between the cold air outlet provided in the outer case and the cold air generation chamber as a switching chamber capable of switching to a temperature zone other than freezing; A refrigerator provided with a second return duct for returning cold air in the switching room to the cold air generation chamber behind the switching room. 2. The method according to claim 1, wherein the first return duct is provided integrally with the third partition plate, and the second partition plate is provided with an opening through which the first return duct passes. refrigerator. 3. The refrigerator according to claim 1, wherein an opening for connecting an outlet of the second return duct is provided on a bottom surface on an outlet side of the first return duct. 4. The cold air outlet is provided on the lower right and left sides of the back of the outer case, the first return duct communicating with the outlet, and the opening of the second partition plate passing the return duct. 4. The refrigerator according to claim 1, wherein the first return duct and the second return duct are provided on the left and right, respectively. 5. The refrigerator according to claim 1, wherein left and right side walls of the cold air distribution chamber are formed integrally with one or both of the second partition plate and the third partition plate. 6. The cooling air outlet is formed so as to protrude right and left below the rear surface of the outer case, and a groove for accommodating an opening end of the first return duct is provided in an outer peripheral portion of the outlet. The refrigerator according to 1. 7. The refrigerator according to claim 1, wherein said first partition plate is provided integrally behind said second partition plate. 8. A freezer-type door, wherein the door of the freezing chamber is vertically integrated, a supporter is provided at an upper rear portion to support the upper container so that the upper container can be freely taken in and out, and a supporter is provided at a lower rear portion to detachably support the lower container. 2. The refrigerator according to claim 1, further comprising a tool. 9. The refrigerator according to claim 1, further comprising a switching operation unit for switching the room temperature of the switching room between freezing and a temperature zone other than freezing around the opening of the freezing room. 10. A plurality of bent upper portions of the third partition plate extending forward to form a cool air passage between the third partition plate and the upper heat-insulating partition member, and a plurality of the third partition plates facing the opening of the lid of the upper container. The refrigerator according to claim 1, further comprising a cold air outlet. 11. The refrigerator according to claim 1, further comprising a heating device provided between the bottom side of the lower container and the switching chamber to raise the temperature of the switching chamber to a temperature zone other than freezing. 12. The refrigerator according to claim 11, wherein the heating device includes a heater portion and a support member that supports the heater portion.