TW201333398A - Refrigerator-freezer - Google Patents

Abstract

To provide a refrigerator-freezer with superior cooling performance and improved energy-saving performance. A cooler 21 is provided in a cooler chamber 20 formed between a rear wall 17 and an inner box 4 of a heat insulating casing 2 so as to extend between a partition member 7a disposed over a freezer compartment 9 to the freezer compartment 9, and a fan 23 is obliquely disposed above the cooler chamber 20 so as to cover the cooler 21. The inner box 4 of the heat insulating casing 2 is formed to be vertical and flat on a rear side of the fan 23. Air outlets 25 and 26 for cold air are provided in the rear wall 17 of the freezer compartment 9 so as to allow communication between a first air passage 22 disposed downstream of the fan 23 and the freezer compartment 9, and a second air passage 22a is provided downstream of the first air passage 22 so as to send cold air to a refrigerator compartment, an ice-making compartment, a switching compartment, and a vegetable compartment.

Description

Refrigerated refrigerator

The present invention relates to a refrigerated refrigerator, and more specifically, it relates to a refrigerated refrigerator capable of improving energy saving performance and cooling performance.

In the conventional refrigerator, the inclined fan is disposed behind the compartment member of the freezer compartment, and the freezer compartment is provided at the lowermost portion, and the recessed portion is provided in the inner box to secure the suction space of the fan (for example, refer to the patent) Document 1).

[Advanced technical literature]

[Patent Document 1] JP-A-2006-183892 (pages 4 to 6, 1 to 3)

In a refrigerated refrigerator for home use, the freezer compartment is generally placed in the lowermost section. However, in recent years, an intermediate chiller type in which the freezer compartment is disposed in the middle section and the lowermost section is used as the vegetable compartment is supplied. In this case, the structural member (fan, air-conditioning supply pipe, cold air flow passage mechanism constituted by the windshield unit, etc.) of the cooler or its surroundings is disposed on the back side of the freezer compartment, and the storage compartment of the freezer compartment is set to the fan. The front side.

Further, in recent refrigerators requiring energy saving, in order to improve energy saving, attention is paid to the back side of the freezer compartment, that is, the heat insulation of the back surface of the cooler compartment. In order to improve the heat insulating performance of the back side of the cooler chamber, it is necessary to increase the thickness of the cooler chamber filled between the outer box and the inner box, or to embed a member having a low thermal conductivity such as a vacuum heat insulating material. Inside the insulation material.

In the refrigerator of Patent Document 1, since the recess for ensuring the intake air volume is provided on the upstream side of the fan, the fan can obtain a predetermined air volume. However, since the concave portion having a large circular arc shape (and thus the convex portion between the inner box and the outer box) is provided in the inner box at the rear of the fan, the thickness of the heat insulating material at the place where the heat leakage is the largest is provided. Thinner, and because the thickness of the vacuum heat insulating material embedded in the heat insulating material is also limited, the heat insulation cannot be sufficiently ensured. Therefore, the cooling performance is lowered, and there is a problem that energy saving cannot be obtained.

The present invention has been made to solve the above problems, and an object of the invention is to provide a refrigerated refrigerator which is excellent in cooling performance and can improve energy saving.

The refrigerator-freezer according to the present invention is characterized in that it has a refrigerator main body in which a refrigerating compartment, a freezing compartment, and a vegetable compartment are provided, and the refrigerating compartment, the freezing compartment, and the vegetable compartment are opened from the upper part to the lower part by the compartment member and are in the outer casing. a heat insulating box compartment filled with a heat insulating material between the inner box and the rear wall is disposed on the back side; the cooler is disposed in the cooler chamber, and the cooler chamber is separated from the upper portion of the freezer compartment The intermediate member to the freezing chamber is formed between the rear wall and the inner box of the heat insulating box, and the fan is disposed obliquely above the cooler chamber in such a manner as to cover the cooler; the partition is formed vertically and flatly a back side of the fan in the inner box of the hot box; a blower outlet for cooling air that connects the first air passage on the downstream side of the fan to the freezer chamber is disposed on the rear wall of the freezer compartment, and is to be directed to the refrigerating compartment The second air passage for conveying the cool air in the ice making compartment, the switching compartment, and the vegetable compartment is disposed on the downstream side of the first air passage.

According to the present invention, since the fan is disposed to be inclined, the filling amount of the heat insulating material between the outer box and the inner box filled in the heat insulating box is hardly affected, and is also embedded in the heat insulating material. The shape or thickness of the vacuum heat insulating material has no effect, so that the heat insulating performance of the back surface of the freezing chamber is not impaired, and energy saving can be achieved.

In addition, since the space on the blowing side having the highest pressure loss is sufficiently ensured by setting the fan to be inclined, the cold air can be surely supplied to the freezing compartment or the refrigerating compartment, and the cooling performance can be improved without affecting the air passage efficiency.

1‧‧‧ refrigerator body

2‧‧‧Insulation box

3‧‧‧Outer box

4‧‧‧ inner box

5‧‧‧Insulation materials

6‧‧‧Refrigerator

7‧‧‧ Ice making room

8‧‧‧Switching room

9‧‧‧Freezer

9a‧‧‧Freezer compartment

9b‧‧‧Freezer box

10‧‧‧ vegetable room

6a, 7a, 10a‧‧‧ compartment components

16‧‧‧Compressor

17‧‧‧ Back wall

20‧‧‧cooler room

21‧‧‧ cooler

22‧‧‧1st wind road

22a‧‧‧2nd Wind Road

23‧‧‧Fan

24‧‧‧Air volume adjustment valve

25‧‧‧lower outlet

26‧‧‧Upper blowout

Fig. 1 is a front view of a refrigerating and freezing refrigerator according to a first embodiment of the present invention.

Fig. 2 is a longitudinal sectional view of Fig. 1.

Fig. 3 is an enlarged explanatory view of a main part of Fig. 2;

Fig. 4 is an explanatory view of a main part of the refrigerator-freezer according to the second embodiment of the present invention.

[First Embodiment]

In the first to third drawings of the refrigerator-freezer according to the first embodiment of the present invention, the first embodiment is a refrigerator body, and the heat insulating box body of the refrigerator body 1 having the front opening is formed, and the outer box 3 and the inner box are provided. 4 and a heat insulating material 5 filled between the outer box 3 and the inner box 4.

The refrigerating chamber 6 is disposed at the uppermost portion of the refrigerator body 1, and below the refrigerating chamber 6, an ice chamber 7 and a switching chamber 8 capable of temperature control below 0 ° C are provided via the partition member 6a. 7a is an ice making chamber 7 and a partition member between the switching chamber 8 and a freezer compartment 9 to be described later. Moreover, the vegetable compartment 10 is provided in the lowermost stage, and the freezing compartment 9 is provided in the vegetable compartment 10 via the compartment member 10a. Further, 9a is a freezer compartment lower case provided at a lower portion of the freezer compartment 9, and 9b is a freezer compartment upper case provided above the freezer compartment 9.

11a and 11b are two left and right doors that open and close the opening of the front surface of the refrigerator compartment 6, but may be an open/close door. Reference numeral 12 denotes a pull-out type door that opens and closes the opening portion of the front surface of the ice making chamber 7, and 13 is a pull-out type door of the switching chamber 8. 14 is a pull-out type door that opens and closes the opening of the front surface of the freezing compartment 9, and 15 is a pull-out type door of the vegetable compartment 10. Further, reference numeral 16 denotes a compressor which is provided in a lower portion of the back side of the vegetable compartment 10 and which constitutes a refrigeration cycle.

The rear wall 17 is provided on the back side of each of the chambers, and the cooler chamber 20 is formed between the rear wall 17 and the inner box 4 of the heat insulating box 2 from the partition member 7a to the back side of the freezing chamber 9. The cooler 21 constituting the refrigeration cycle is disposed substantially vertically in the cooler chamber 20. Further, the rear wall 17 branches to the obliquely upward side toward the back side on the back side of the upper compartment 9b of the freezer compartment, and closes the upper side of the cooler chamber 20, and forms a wide space portion on the front side (hereinafter, the rear wall of the branch is called It is the branch rear wall 17a).

22 is a first air passage formed by a wide space portion formed between the front side of the branch rear wall 17a and the rear wall 17, and 22a is formed between the rear wall 17 and the inner box 4 of the heat insulating box 2. And a second air passage that communicates with the downstream side of the first air passage 22.

23 is disposed in the first air passage 22, and is attached to the branch rear wall 17a obliquely, and the cooler chamber 20 side serves as a fan of the suction port. In the embodiment, the inclination angle θ of the fan 23 to the vertical line is 15 °. Further, the cooler 21 is completely housed in the lower projected area of the inclined fan 23.

However, since the fan 23 is disposed obliquely, and the blade of the fan 23 is narrowed from the inner box 4 of the heat insulating box 2, the blade may come into contact with the inner box. Therefore, a recessed portion 4a is provided in which the inner box 4 is slightly recessed so that the blades do not contact and the bottom surface is flat.

Since the concave portion 4a is provided in this manner, since the amount of depression of the concave portion 4a is minute, the filling amount (thickness) of the heat insulating material 5 filled between the outer box 3 and the inner box 4 is hardly changed, and is buried in the partition. The shape, thickness, and the like of the vacuum heat insulating material in the heat material 5 have almost no effect. Further, in the case where the blade of the fan 23 does not come into contact with the inner box 4, it is not necessary to provide the recess 4a.

The air conditioning valve of the second air passage 22a is provided on the downstream side of the fan 23, and is housed in the upper projected area of the fan 23.

25 is provided in the rear wall 17 of the freezing compartment 9, and the lower air outlet which connects the first air passage 22 and the freezer compartment lower casing 9a is provided in the rear wall 17 of the freezing compartment 9, and the first air passage is provided. 22 an upper blowout port that communicates with the upper compartment 9b of the freezer compartment.

In the refrigerator configured as described above, the refrigerant compressed by the compressor 16 constituting the refrigeration cycle is condensed by a condenser (not shown), and then the condensed refrigerant is depressurized by a throttle device (not shown). It is sent to the cooler 21 and evaporated in the cooler 21. The periphery of the cooler 21 (cooler chamber 21) is cooled by the heat absorption at the time of evaporation.

The cold air generated by the cooler 21 is guided to the first air passage 22 by the fan 23, and is supplied from the first air passage 22 to the freezing chamber 9 via the lower air outlet 25 and the upper air outlet 26, and the freezer compartment 9a is closed. And the temperature in the upper compartment 9b of the freezer compartment is controlled to maintain the temperature of the contained food (for example, 18 ° C) for a long period of time.

On the other hand, the cold air sent from the first air passage 22 to the second air passage 22a via the air volume adjusting valve 24 is sent to the refrigerating chamber 6, the ice making chamber 7, the switching chamber 8, and the vegetable compartment 10, and the air volume adjusting valve 24 is used. The air volume is adjusted and these chambers are controlled to an appropriate temperature.

According to the present embodiment configured as described above, the recessed portion 4a which is slightly recessed and whose bottom surface is vertical and flat is provided at a position corresponding to the inner box 4 corresponding to the blade of the fan 23 which is inclined, because the outer box 3 is provided. The filling amount (thickness) of the heat insulating material 5 between the inner box 4 and the inner box 4 has almost no influence, and the shape and thickness of the vacuum heat insulating material embedded in the heat insulating material 5 are not changed, so that the freezing is not impaired. The heat insulation of the back of the chamber 9 enables energy saving.

In addition, in order to ensure a sufficient space on the blowing side, the fan 23 is inclined, and the space on the blowing side (the first air passage) having the highest pressure loss is sufficiently secured, so that the first air passage 22 and the second air passage 22a can pass through. The cold air is supplied to the freezing compartment 9 or the refrigerating compartment 6 or the like, whereby the cooling performance can be improved without affecting the air passage efficiency.

[Second Embodiment]

Fig. 4 is an explanatory view of a main part of the refrigerator-freezer according to the second embodiment of the present invention. In addition, the same symbols are attached to the same portions as those in the first embodiment.

In the present embodiment, the radius of the blade surface of the fan 23 is d, and the opening area of the upper portion of the upper portion of the freezer compartment upper casing 9b for transporting cold air from the first air passage 22 to the freezer compartment 9 is A. In the case, the inclination angle θ of the fan 23 is set to 1.1 × A < dsin θ < 0.9 × A.

By setting the inclination angle θ of the fan 23 as described above, it is possible to prevent the cooling efficiency from being lowered due to heat leakage from the switching chamber 8 provided in the upper portion of the freezing compartment 9, and to improve the cooling efficiency of the upper compartment 9b in the freezing compartment.

1‧‧‧ refrigerator body

2‧‧‧Insulation box

3‧‧‧Outer box

4‧‧‧ inner box

4a‧‧‧ recess

5‧‧‧Insulation materials

7a‧‧‧ Compartment components

8‧‧‧Switching room

9‧‧‧Freezer

9a‧‧‧Freezer compartment

9b‧‧‧Freezer box

17‧‧‧ Back wall

17a‧‧‧The back wall of the branch

20‧‧‧cooler room

21‧‧‧ cooler

22‧‧‧1st wind road

22a‧‧‧2nd Wind Road

23‧‧‧Fan

24‧‧‧Air volume adjustment valve

25‧‧‧lower outlet

26‧‧‧Upper blowout

Θ‧‧‧ tilt angle

Claims (7)

A refrigerator-freezer having a refrigerator body, a freezer compartment, and a vegetable compartment, wherein the refrigerator compartment, the freezer compartment, and the vegetable compartment are opened from the upper portion to the lower portion and in the outer box and the inner compartment The tank is filled with a heat insulating box compartment of the heat insulating material, and the rear wall is disposed on the back side; the cooler is disposed in the cooler chamber, and the cooler chamber is a partition member from the upper portion of the freezing chamber The freezing chamber is formed between the rear wall and the inner box of the heat insulating box, and the fan is obliquely disposed above the cooler chamber so as to cover the cooler; the heat insulating box is formed vertically and flatly a back side of the fan in the inner box of the body; and a blower outlet for cooling air that connects the first air passage on the downstream side of the fan to the freezer compartment, and is provided to the rear wall of the freezer compartment, and is made to the refrigerator compartment The second air passage for conveying cold air in the ice chamber, the switching chamber, and the vegetable compartment is disposed on the downstream side of the first air passage. The refrigerator-freezer according to the first aspect of the invention, wherein the lower compartment of the freezer compartment and the upper compartment of the freezer compartment are disposed in the freezer compartment, and the first airway is connected to the lower compartment of the freezer compartment and the upper compartment of the freezer compartment. The lower air outlet and the upper air outlet of the cold air. The refrigerating and refrigerating refrigerator according to claim 1 or 2, wherein an air volume adjusting valve is disposed at an upper portion of the cooler chamber, and the air volume adjusting valve controls the conveying to the refrigerating chamber, the ice making chamber, the switching chamber, and the vegetable compartment The air volume of the air conditioner. The refrigerator-freezer according to claim 1 or 2, wherein in the upper portion of the cooler chamber, in order to prevent the blade of the fan from coming into contact with the inner box of the heat insulating box, the vertical surface is flat and slightly recessed. Concave. The refrigerator-freezer according to the second aspect of the invention, wherein the radius of the blade surface of the fan is d, and the opening area of the upper portion of the freezer compartment is set to A, the setting is set according to the following mathematical formula: The inclination angle θ of the fan relative to the vertical line: 1.1 × A < dsin θ < 0.9 × A. In the case of the refrigerating and refrigerating refrigerator of the third aspect of the invention, wherein the radius of the blade surface of the fan is d and the opening area of the upper portion of the freezer compartment is A, the following formula is used. The inclination angle θ of the fan relative to the vertical line: 1.1 × A < dsin θ < 0.9 × A. A freezer-refrigerated refrigerator according to item 4 of the patent application, wherein the half of the blade surface of the fan is When the diameter is d and the opening area of the upper portion of the freezer compartment is A, the inclination angle θ of the vertical line of the fan is set according to the following mathematical formula: 1.1 × A < dsin θ < 0.9 × A.