JPS6146379Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a four-door refrigerator equipped with a vegetable storage compartment and a fresh room. The purpose is to store vegetables so that they do not dry out.

A detailed explanation will be given below using an example shown in the drawings. 1
This is a refrigerator body with foam insulation material 4 filled between an inner box 2 and an outer box 3, and inside the inner box 2 there is a horizontal partition wall that divides the inner box 2 into an upper room (refrigeration room) and a lower room. 5 and a vertical partition wall 6 that divides the lower room into two on the left and right.
A partition member 7 is separately attached to the left room to partition the room into an upper and lower part. The upper room is a refrigerator room 8, the room on the right side of the lower part is a freezer room 9, and the room on the left side of the lower part is a vegetable storage room 10 and a fresh room 11 for storing perishables such as fish and meat. A door (not shown) is attached to the front opening of the room so that it can be opened and closed. Reference numeral 12 indicates a cooler installed inside the horizontal partition wall 5, and reference numeral 13 indicates a heat insulating material provided around the cooler 12. Reference numeral 14 designates a blower fan rotatably driven by an electric motor 15 attached to the rear wall of the refrigerator main body 1, and a duct 16 that communicates cold air from the cooler 12 to the refrigerator compartment 8 and a duct 17 that communicates to the freezer compartment 9.
and fresh room 1 through vegetable storage room 10.
The air is divided into a duct 18 leading to the air outlet 1. 19 is a damper device for sensing the temperature inside the refrigerator compartment 8 and adjusting the amount of cold air coming from the duct 16. When this damper device 19 is opened, the duct 1
After the cold air from 6 flows out from the discharge port 20 and cools the inside of the refrigerator compartment 8, a suction port 21 is formed in the horizontal partition wall 5.
The structure is such that it circulates closer to the cooler 12 side.
22 is an ice making device installed in the freezer compartment 9, 23 is a food box, and 24 is a control box. The cold air passing through the duct 17 by the drive of the blower fan 14 cools the freezer compartment 9 and then returns to the cooler 12 through the suction port 25 formed in the horizontal partition wall 5. The fresh room 11 is formed by inserting a box body 28 containing a net shelf 26 and a meat pan 27 into an upper chamber divided by a partition material 7, and a cold air passage 29 on the outer periphery of the box body 28. is formed. The duct 18 is detoured in a U-shape so as to pass through the rear wall of the vegetable storage room 10 from bottom to top, and its upper end connects to the cold air passage 29 surrounding the outer periphery of the fresh room 11.
is communicated with. This cold air passage 29 and duct 1
A damper device 30 is installed at the connection part 8, and by opening and closing the damper device 30, the temperature of the fresh room 11 and the vegetable storage compartment 10 is set to a predetermined temperature (0° to 1° C. for the fresh room 11; The storage chamber 10 is controlled at a temperature of 6 to 7°C. That is, when the load on the vegetable storage room 10 is large, the opening time of the damper device 30 is long, and therefore the amount of cold air sent into the fresh room 11 is large. Therefore, a large amount of cold air passes through the back wall of the vegetable storage compartment 10, and heat exchange through the heat exchange plate 32 made of a material with high thermal conductivity and integrally formed with a large number of heat-absorbing fins 31 is improved, allowing vegetable storage. A large amount of heat within the room 10 is taken away. On the other hand, Fresh Room 11
Since the temperature of the cold air flowing into the vegetable storage chamber 10 is relatively high because it absorbs heat when passing through the back wall of the vegetable storage chamber 10, the temperature does not become abnormally low even when the damper device 30 is opened for a long time. Conversely, when the load on the vegetable storage compartment 10 is small, the damper device 3
0 opening time is short, and therefore the amount of cold air sent into the fresh room 11 is small. For this reason,
The amount of heat in the vegetable storage room 10 that is taken away via the heat exchange plate 32 is small and flows into the fresh room 11 at a relatively low temperature, so the damper device 3
Fresh room 1 even when closed for a short time
1 can be sufficiently cooled. That is, one damper device 30 can control the temperatures of two rooms simultaneously.

The cold air passing through the cold air passage 29 indirectly cools the vegetable storage chamber 10 via the bottom plate 7a of the partition member 7, and then flows into the fresh room 11 through the discharge hole 33, and then flows into the fresh room 11 through the suction port 34 of the horizontal partition wall 5. Cooler 1
Return within 2.

In the present invention, as described above, the cold air from the cooler bypasses the rear wall of the vegetable storage room, indirectly cools the vegetable storage room, and then leads to the fresh room. In this case, only one duct is required, which simplifies the structure, and since cold air does not circulate directly into the vegetable storage room, it is possible to prevent the vegetables from drying out. A damper device is installed at the opening of the duct to maintain the temperature of the fresh room at a predetermined temperature, so it is not only possible to control the temperature of the fresh room, but also to prevent load fluctuations even if there are load fluctuations in the vegetable storage room. A certain degree of temperature control can also be carried out.

In other words, when the load in the vegetable storage room is large, the temperature of the cold air passing through the duct becomes relatively high, so when the damper device is opened, the opening time of the damper device is set so that a large amount of cold air flows into the vegetable room. become longer. On the other hand, when the load inside the vegetable storage room is small, the temperature of the cold air passing through the duct is relatively low, so the inside of the fresh room reaches a predetermined temperature in a short time, reducing the time it takes for the damper device to open.

In this way, one damper device can control two chambers.

Furthermore, in the present invention, since the fresh room is provided above the vegetable storage room, the cold air passage for returning cold air from the fresh room to the cooler side is short and the structure is extremely simple. Even if there is cold air leakage (heat effect) through the horizontal partition wall that houses the container, there will be no problem as the fresh room is relatively low temperature, and since the vegetable storage room is located far from the cooler, there will be no problem due to the heat effect caused by the cooler. It can produce many remarkable effects without any adverse effects.

[Brief explanation of the drawing]

Figure 1 is a front view of the refrigerator of the present invention with the front door removed, Figure 2 is a sectional view taken along line A-A' in Figure 1,
Figure 3 is a sectional view taken along line B-B' in Figure 1, and Figure 4 is a cross-sectional view of Figure 3.
A sectional view taken along the line C-C' in the figure, and FIG. 5 shows a cold air circuit diagram when the refrigerator of the present invention is viewed from the back side. 1: Refrigerator body, 5: Horizontal partition wall, 6: Vertical partition wall, 7: Partition material, 10: Vegetable storage room, 11: Fresh room, 12: Cooler, 18: Duct.

Claims (1)

[Scope of utility model registration request] The inner box is divided into two vertically by a horizontal partition wall, a cooler is installed inside the horizontal partition wall, and the lower room is divided into left and right halves by a vertical partition wall, and one of the left and right divided rooms is A partition material is installed at the top of the room to make the bottom part a vegetable storage room and the top part a fresh room.
Cold air from the cooler is bypassed around the back wall of the vegetable storage room to indirectly cool the vegetable storage room, and then guided to the fresh room and returned to the cooler side, and is also communicated with the fresh room. The refrigerator is characterized in that the opening of the duct after passing through the rear wall of the vegetable storage compartment is provided with a damper device for maintaining the temperature of the vegetable storage room at a predetermined temperature.