JPS6186561A - Refrigerator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention is a cold storage system that stores cold air and supplies it to a room to cool the room. In the warehouse, especially in the storage room! Concerning the formation of a child.

[Explanation] Conventional technology In response to the diversification of foods stored in conventional food refrigerators, compartments that can be adjusted to various temperatures have been formed.

Some methods of cooling the compartments directly introduce cold air, while others indirectly cool the interior through the walls of the compartments in order to prevent the stored food from drying out. In this type of indirect cooling system, cool air flows along the top surface of the compartment and along the left and right sides of the compartment, but when cold air is supplied to the top of the compartment, the cold air stagnates and reaches the top of the compartment. It has the disadvantage of generating frost.

→ Problems to be solved by the invention For example, as a solution to such drawbacks,
As shown in Publication No. 23381 (a structure is being considered in which cold air is distributed from the rear surface to the left and right without supplying cold air to the top surface of the compartment. However, if cooling from the top surface is stopped in this way, indirect cooling Since the cooling effect is originally weaker than that of direct cooling, insufficient cooling within the compartment may inevitably occur.

(b) Means for solving the problem In order to solve the problem, the present invention provides a cold air distribution passage extending from side to side, with a discharge outlet located at the center of the rear part of the upper surface of the compartment. This passage (2) communicates with the cold air passage on both sides of the compartment, and a through hole (6η) communicating with the compartment is formed on the side of the passage.

G1 Function According to the present invention, the compartment is indirectly cooled by the cold air passages on both sides, and the cold air flows in through the through holes.

Since this inflowing cold air has a speed to the left and right, it is a small amount and circulates along the inside of the side of the compartment, cooling the food stored therein so as to envelop it.

(F) Embodiment An embodiment will be explained with reference to the drawings. FIG. 6 shows a refrigerated refrigerator as an example. (2) is a heat insulating box body that opens at the front, and (3) is a heat insulating partition wall that partitions the inside of the refrigerator, with a freezer compartment (4) formed above it. (5) is located in the lower part of the refrigerator, and below it is a vegetable compartment (6) consisting of a container (6).
7). Partition wall (3) and partition plate (5)
The interior space between the two is further divided into upper and lower sections by a heat-insulating partition plate (8), and a refrigerating chamber (9) that is cooled to a refrigeration temperature of +3° C. is located below the partition plate (8). Partition board (8) and partition wall (3
) is a case (101) attached to the partition plate (8) that is open to the front and downward, and an ice greenhouse α2 as a compartment consisting of a partition plate (8) and a transparent inner door (ill).
is formed. A cooling chamber (131) is formed within the partition wall (3), and a cooler (141) included in the refrigeration cycle is installed here.
is stored and arranged. A duct 0.51 f161 is formed at the rear of the cooling chamber 0 and connected thereto and extends vertically, and a blower On is also provided. The blower Q71 is operated and sends cold air from the cooler Q41 in the direction of the duct H51 (161), and discharges it from the duct (151) to the freezer compartment (4).

duct) (161 discharges cold air from the discharge port (18) that opens in the back wall of the insulating box body (2) behind the case aα, but this discharge port 0 & is a damper thermometer that senses the temperature inside the refrigerator compartment (9). Opening/closing is controlled by σ9.

The partition plate (8) is located at the rear of the front member provided on the lower opening edge of the partition wall (3) from side to side. Also, (2IJ
) and Q Tajima, respectively, a freezer room (4) and an ice room (lot
This is an insulating door that freely opens and closes the openings of the front, refrigerator compartment (9), and vegetable compartment (7).

Figure 1 is an enlarged cross-sectional view of the icehouse (part 121), and Figure 2
The figure shows a front sectional view. Furthermore, Figure 3 shows the icehouse (1
21 is shown in an exploded perspective view. ■ is a damper thermo cover, which has a heat insulating material inside and is located between the case 1101 and the back wall of the heat insulating box (2), and directs the cold air flowing out from the outlet side into the refrigerator compartment (9). It has a side discharge port for causing the cool air to flow downward, and a discharge port for discharging the cold air forward. Case (on the rear top of 101, case a
A recessed groove (5) spanning the entire width is formed, and a molded heat insulating material mortar which is open upwardly and laterally and forms a cold air passage for distribution extending from side to side is housed within this recessed groove frame. As shown in Fig. 2, the left and right side surfaces of the case (101) form a cold air passage (to) which communicates with the cold air passage (c) at a distance from both sides of the inner surface of the insulating box (2). The opening edge and the back are in contact with the lower surface of the partition wall (3) and both sides of the inner surface of the insulation box (21).The upper surface of the case 001 has a small gap between the partition walls (3), and there is an upper protrusion Q11)2
have. An operating arm C32 is rotatably fixed to this projection 01), and a long hole (
Damper plate 04) is rotatably engaged with c). The damper plate C34) is formed by integrally forming the opening/closing plate (40) located at the innermost part and the closing plate (41) located at the front.The discharge air of the damper thermo cover 09 is connected to the cold air passage (
It opens at the center within 2 seconds, and the opening/closing plate (40 is located just before the discharge port G9 in the cold air passage rut. Arm 0
The knob 21 at the front end of 7J is exposed on the back side of the inner door (old), and by operating this knob 02) left and right, the discharge port (
It is possible to adjust the amount of cold air flowing into the cold air passage (g). In addition, a lip (C) that projects upward is formed on the front edge of the groove (2) to prevent cold air from flowing into the upper surface of the case α (G). A notch (4th line) is formed, and a notch (29A) is also formed in the heat insulating material (A) corresponding to this. A closing plate (411) is located just before this notch (44J).

This closing plate (411) always closes the notch 0 even if the arm C32 moves left and right.This closing plate (4B and lip (411)
43 prevents cold air from flowing into the top surface of the case (10), so the cold air stays here and prevents the inconvenience of frost forming on the top surface of the case (IG). It is a cover that closes.

Figures 4 and 5 show enlarged views of the side and front parts of the partition plate (8), respectively. (46), (4η is the outer box and inner box that make up the insulation box (2), (481 is both boxes (4)
It is a heat insulating material filled with light for 61 (47) minutes. Partition board (8
) consists of an upper plate 60) with a concave inner side than the edge, a lower plate (511), and both plates (50) (formed insulation material (52) loaded between 511.The insulation material 521 is the lower plate 511). It is provided along the upper surface, and is spaced from the upper plate (50) by a small distance (both left and right).The lower plate 511 has a plurality of through holes closer to the center than the edges, and has a heat insulating material. (52 also corresponds to this through hole 153) and communicates with the interval ci4
)have. Furthermore, there are through holes (
) are formed. This through hole 59 is a cold air passage (toward)
The through holes (5154) 531 communicate the cold air passage (7) and the refrigerator compartment (9) inside the partition plate (8). A passageway is constructed. Case αα has through hole 6!19
It is fixed to the upper edge of the inclined surface of the upper plate mark on the inner side, and the cold air passage (2) is inclined inwardly and descends from the through hole 551 according to the shape of the inclined part (8A) around the partition plate (8), It has a shape that wraps around the lower surface of the upper plate 60.

The partition plate (8) assembled in this way has grooves l5 formed on both side walls of the inner box (4) above the front member (2).
7), it can be installed approximately horizontally by resting both edges, but since the central horizontal part is recessed than the edges, it is located at the rear of the front member C2I. Therefore, the dead space inside the refrigerator behind the front member ■ can be used effectively, and the partition plate (8) is recessed, and case α [should have enough space above to store the arm c32 (the cold air passage should be closed). Case (101) without configuring
By making the top surface close to the bottom surface of the partition wall (3), the ice greenhouse (
The internal volume of 1z is also expanded.

The front member has a stepped part (20A) formed at the rear of the upper surface and has one or more lip rams projecting rearward on the rear surface. On the other hand, at the front end of the lower plate 511 corresponding to the inclined part (8A) of the partition plate (8), one or more supporting walls 6]) extending vertically corresponding to the lip (2) are protruded. By placing the support wall 6υ in contact with the lip 60), the front part of the partition plate (8) is prevented from sagging due to the weight of stored items or its own weight, and the rear surface of the front member (■) or the stepped part (20A ) and the inclined portion (8A) of the partition plate (8).

Maintain spacing. At this time, the front edge of the upper plate (8) of the partition plate (8) extends to the upper part of the stepped part (20A) of the front member (2), and covers it with a gap therebetween, and a plurality of through-hole sheets 2 are also provided. It is formed. In addition, the door (221) and the inner door (11) have a gap between them, and the upper end communicates with the cooling chamber α3 through the suction hole groove formed in the lower front part of the partition wall (3), and the lower end communicates with the cooling chamber α3 through the through hole (62
), which communicates with the refrigerator compartment (9) and forms a series of cold air return passages (64). Here, 69 is a cold air suction hole on the side of the freezer compartment (4).

Next, cold air circulation will be explained. The cold air blown out from the outlet (G) of the damper thermo cover ■ goes through the cold air passage (2).
(towards), and once it collides with the front wall of the molded heat insulating material (2), it is distributed to the left and right. At this time, due to the presence of the molded heat insulating material, frost does not form on the outer surface of the groove of the case C1o+. The cold air flowing from side to side in the cold air passage (2) flows into the cold air passage (end) on the side of the case Cl0I, descends, and flows into the cold air passage (branch) from the perforated egg, as shown by the arrows in FIG. Due to the inclined shape of the passage ω, the cold air flowing into the cold air passage (branch) does not immediately flow down through the through holes 63) and 54) at the side ends, but is mostly guided well toward the center. As a result, the ice greenhouse becomes 0
2 shows both sides of the case 001 and the upper plate 6 of the partition plate (8)
01 is indirectly cooled. By not circulating cold air on the top surface of the case (101), it is possible to prevent frost formation on the top surface and expand the internal volume of the ice chamber α2, but the cooling effect may be insufficient. A through hole is formed in the bottom wall that corresponds to the cold air passageway of the case (1).
Correspondingly, a through hole 17)Y is also bored in 01. As a result, although it is a small amount, the cold air in the cold air passage Niuchi is heated to the ice greenhouse r1.
The installation of the refrigerator (1) speeds up the cooling rate of the ice room (12+) and eliminates the lack of cooling caused by indirect cooling.

Also, at this time, the cold air flowing in from the through hole flows into the ice chamber (121) from both sides and has a velocity to the left and right, so it flows forward along the inner side 111 of the case r:iα side and is stored. Furthermore, since the amount of cold air flowing in is small, drying of the stored food can be suppressed to a minimum.With such indirect and direct cooling, the ice room 02
The inside of the container is maintained cooled to the freezing storage temperature. Here, freezing storage temperature is a temperature range that is below freezing, such as 0°C to -2°C, but is on the verge of freezing meat and vegetables, and by storing food at this freezing storage temperature, it can be frozen. It suppresses the growth of bacteria inside and can be stored for a relatively long period of time (about a week in experiments).

The cold air that has flowed into the cold air passage (branch) flows down into the refrigerator compartment (9) through the through holes 53), 154), and flows into the refrigerator compartment (9) and around the container (6) together with the cold air from the side discharge. After circulating and exchanging heat, it passes through the space between the partition plate (8) and the front member ■ as shown by the arrow in Fig. The cold air then returns to the cooling room a3 through the suction hole.A rising air current is generated near the door (c) due to heat leakage from outside the refrigerator, and this cold air return operation is also achieved smoothly. , inner door αB
Since there is a constant rising air current in the front, the transparent inner door (old) will not fog up due to condensation (low-temperature ice greenhouse (1)).
Visibility inside z will always be maintained well.

Here damper thermo a! J detects the temperature of the refrigerator compartment (9), so if you change the set temperature of 91, the amount of cold air flowing into the cold air passage (to) will also change, but depending on the knob, the damper plate By moving left and right and adjusting appropriately, the temperature inside the ice room α2 can be maintained at a predetermined ice temperature storage temperature.

(g) Effects of the invention According to the invention, there is no supply of cold air to the top surface of the compartment.

Furthermore, even if insufficient cooling occurs due to an increase in the load inside the compartment, cold air will directly flow in through the through holes, so the cooling speed will be faster, especially when a refrigerator is installed.

In addition, since the cold air flowing in through the holes originally has a velocity in the left-right direction, it moves forward along the inside of the side of the compartment and circulates in a small amount, enveloping the food stored inside. Drying of food is also suppressed to a minimum.

[Brief explanation of the drawing]

Each figure shows an embodiment of the present invention. Figure 1 is a side sectional view of the ice chamber, Figure 2 is a front sectional view of the same, Figure 3 is an exploded perspective view of the components of the ice chamber, and Figure 4 is a 11E2 Enlarged view of the main part of the figure, No. 5
The figure is an enlarged view of the main part of FIG. 1, and FIG. 6 is a schematic sectional view of the refrigerator. (9)...Refrigerated room, 0...Ice greenhouse, @(7)・
・・Cold air passage, (to) ・・Discharge port, fdEiη・・
・Through hole.

Claims (1)

[Claims] 1. In a refrigerator that cools the storage room by supplying cold air from a cooler into the storage room, a compartment formed in the storage compartment, a cold air outlet located at the rear upper part of the compartment, and the compartment a cold air passage for distribution provided at the rear of the upper surface, with the cold air discharge port facing the center thereof and extending from side to side; a cold air passage formed on both sides of the compartment and communicating with the cold air passage for distribution; A refrigerator comprising a through hole communicating with the compartment formed on the side of a cold air distribution passage.