JPH05133670A - Refrigerator - Google Patents

Abstract

PURPOSE:To indirectly cool contents in a container by feeding cold air to a direct cooling passage located on the upper surface of the container placed in a selection chamber formed below a refrigeration chamber to directly cool the contents in the container, and feeding cold air to an indirect cooling passage located outside the container. CONSTITUTION:In a refrigerator wherein cold air cooled by a cooler is supplied to a selection chamber 34 selectable in refrigeration temperature or ice temperature through a duct, the duct comprises a cold air inflow duct 30 and two layer ducts 37, 38 communicated with the inflow duct 30. The two layer ducts 37, 38 include an indirect cooling passage communicating with a side all of the selection chamber 34 and upper surface opened containers 39, 40 contained in the selection chamber 34, a direct cooling containers 39, 40, and a shutter for selectively opening any one of the indirect and direct cooling passages.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator provided with a selection chamber whose cooling temperature can be selected.

[0002]

2. Description of the Related Art For example, a cool air distribution system for a refrigerator is disclosed in the following publication. First, FIG.
This is the same as FIG. 1 of Japanese Patent No. 115677, and the “refrigerator” of that publication divides a refrigerator body 1 accommodating a blower fan 8 for circulating cold air into chambers 2, 3, 4, 5, 6, 7. The partition wall 9 and the duct 10 provided on the back surface of the partition wall 9 are provided, and the duct 10 has an outlet for blowing the cold air into each of the chambers. Next, FIG. 6 is the same as FIG. 4 of Japanese Unexamined Patent Publication No. 3-122479, and the "refrigerant air distribution system of the refrigerator" in that publication has a predetermined value over substantially the entire left and right sides in the center of the refrigerator compartment 11. A plurality of cold air distribution passages 12 extending in parallel at intervals and each cold air distribution passage 1
2 is provided with a plurality of cold air outlets 13 provided at predetermined positions. Next, FIG. 7 is an actual Kaihei 3-48.
It is the same as FIG. 2 of 687 publication, and the "refrigerator" of that publication is a first freezer compartment 21, a second freezer compartment 22,
First refrigerating compartment 23, second refrigerating compartment 24, third refrigerating compartment 2
5, a low temperature chamber 26 and a partition 27 for partitioning each chamber, and ducts 28 for guiding cold air to each of the cold storage chamber and the low temperature chamber are arranged in parallel on the left and right sides.

[0003]

However, the conventional cold air distribution system of the refrigerator disclosed in the above-mentioned JP-A-2-115677, JP-A-3-122479 and JP-A-3-48687, has been proposed as follows. There is only a refrigeration passage and no ice temperature passage is provided separately.Cold air is sent directly into the cooling passage on the upper surface of the container placed in the selection chamber formed below the refrigerating compartment. It was not possible to directly cool the contents of No. 1 or indirectly cool the contents of the container by sending cold air into the indirect cooling passage outside the container. Moreover, the structure is not such that cold air can be effectively distributed to the refrigerating compartment and the selection compartment formed below the refrigerating compartment.

[0004]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a refrigerator in which cold air cooled by a cooler is supplied through a duct to a selection chamber capable of selecting refrigeration temperature or ice temperature. In the above, the duct comprises a cold air inflow duct and a two-layer duct communicating with the inflow duct, and the two-layer duct is provided between a side wall of the selection chamber and a container having an upper surface opening accommodated in the selection chamber. An attempt is made to provide a refrigerator provided with an indirect cooling passage communicating with, a direct cooling passage communicating with the inside of the container, and a shutter for selectively opening one of the indirect or direct cooling passage. It is a thing.

[0005]

[Function] The two-layer ducts provided at the left and right corners of the refrigerating compartment of the refrigerator blow the cool air into the refrigerating compartment to cool the refrigerating compartment, and the cool air is placed in the selection compartment below the refrigerating compartment. To directly cool the contents of the container by blowing into the direct cooling passage on the upper surface of the container, or to indirectly cool the contents of the container by blowing into the passage for indirect cooling outside the container. The shutter provided in the two-layer duct switches between the direct cooling and the indirect cooling.

[0006]

EXAMPLES Examples of the refrigerator according to the present invention will be described below.
This will be described with reference to FIGS. 1 to 4. FIG. 1 is a perspective view of a refrigerator with a door removed showing a first embodiment of the duct of the present invention. In FIG. 1, reference numeral 30 denotes a cool air inflow duct, 3
Reference numeral 1 is a freezing room, 32 is a branch duct, 33 is a refrigerating room, and 34 is a selection room. The cool air cooled by an evaporator (not shown) at the back of the freezing room 31 and blown out through a fan 31a is The cold storage damper 35 and the ice temperature damper 36 provided in the branch duct 32 are used to divide the flow into left and right, and to flow into the two-layer ducts 37 and 38 provided at the left and right corners of the refrigerating compartment 33, respectively. It has become. That is, the duct is the cold air inflow duct 30,
It is composed of a branch duct 32 and two-layer ducts 37 and 38. The tip of each of the two left and right two-layer ducts 37, 38 is provided, for example, in the direct cooling passage on the upper surface of the bottle refrigerating container 39 and the vegetable refrigerating container 40 placed in the selection chamber 34. The tip of the tube is the selection chamber 34
They communicate with the indirect cooling passages outside the containers 39 and 40 placed inside.

FIG. 2 is a perspective view showing the second embodiment of the duct of the present invention with the door removed. FIG. 2 is the same as FIG. 1 except that the two-layer duct part is different from FIG. In FIG. 2, the cool air from the branch duct 32 flows into the two-layer ducts 41 and 42 provided in the left and right corners of the refrigerating chamber 33, respectively. The two left and right two-layer ducts 41 and 42 are provided in the direct cooling passages on the upper surfaces of the bottle refrigerating container 43 and the vegetable refrigerating container 44 in which the ends of the one two-layer duct are placed in the selection chamber 34. A container 43 in which the tip of the duct is placed in the selection chamber 34,
Each of the channels 44 communicates with an indirect cooling passage on the outside of 44.

FIG. 3 is a partial perspective view showing the details of the associated arrangement of one of the two-layer ducts 37, 38 of FIG. 1 and the container 39. In FIG. 3, 37 is a two-layer duct, 37 a is a passage of cold air that has passed through the refrigeration damper 35, 37 b is a passage of cold air that has passed through the ice temperature damper 36, and 39 is a container placed in the selection chamber 34. , The cold air passing through one cold air passage 37a of the two-layer duct 37
9, the other indirect cooling passage is provided with the other cold air passage 37b.
The cold air passing therethrough is communicated with the direct cooling passages inside the container 39, respectively. The two-layer duct 37 is attached to, for example, a shutter 45 at a longitudinal intermediate portion of the cold air passage 37b of the two-layer duct so that the contents of the container 39 can be selectively switched between direct cooling and indirect cooling as desired. Has been.
45a is a knob of the shutter 45, 46 is a shutter 4
It is an elongated hole that guides the axis of 5 to the left and right.

FIG. 4 is a cross-sectional plan view of an example of mounting the shutter 45 on the two-layer duct 37 of FIG. As shown in FIG. 4, cold air passages 37a and 37b are formed from the rear member 37c and the front member 37d, and the front member 37d is covered by the cover 37.
The shutter 45 is covered by the cover 37
It is slidable to the left and right by a knob 45a protruding in front of e. Although the embodiment described with reference to FIGS. 3 and 4 is for the two-layer duct 37, the same applies to the two-layer ducts 38, 41, 42.

[0010]

Since the refrigerator according to the present invention is constructed as described above, the cooling air for direct cooling and the cooling air for indirect cooling are provided inside and outside the container placed in the selection chamber formed below the refrigerating chamber. Can be effectively distributed.

[Brief description of drawings]

FIG. 1 is a perspective view of a refrigerator with a door removed showing a first embodiment of a duct of the present invention.

FIG. 2 is a perspective view of a refrigerator with a door removed showing a second embodiment of the duct of the present invention.

3 is a partial perspective view of one of the two-layer ducts of FIG. 1 and the associated arrangement of containers.

FIG. 4 is a cross-sectional plan view of an example of mounting the shutter of the two-layer duct of FIG.

FIG. 5 is an explanatory diagram of a conventional refrigerator.

FIG. 6 is an explanatory view of a cold air distribution system of a conventional refrigerator.

FIG. 7 is an explanatory diagram of a conventional refrigerator.

[Explanation of symbols]

 30 Cold Air Inflow Duct 31 Freezing Room 32 Branch Duct 33 Refrigerating Room 34 Selection Room 35 Refrigerating Damper 36 Ice Temperature Damper 37 Two-layer Duct 38 Two-layer Duct 39 Bottle Refrigerating Container 40 Vegetable Refrigerating Container 41 Two-layer Duct 42 Two-layer Duct

Claims (1)

[Claims] 1. A refrigerator for supplying cold air cooled by a cooler to a selection chamber capable of selecting refrigerating temperature or ice temperature through a duct, the duct being a cold air inflow duct and the inflow duct. A two-layer duct that communicates with the two-layer duct, and an indirect cooling passage that communicates between the side wall of the selection chamber and a container with an upper opening accommodated in the selection chamber, and direct cooling that communicates with the container. A refrigerator provided with a cooling passage and a shutter for selectively opening one of the indirect cooling passage and the direct cooling cooling passage.