JPH10160322A - Damper unit for refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress a reduction in an effective volume of an indoor due to a damper unit. SOLUTION: The refrigerator is partitioned by a partition wall in a body and hence constituted by a cold storage chamber 9 and a deep freezing chamber 10. Cold air cooled by a cooler is distributed and supplied into the storage chamber 9 and the freezing chamber 10 by a blower 16. A molded heat insulator 7 formed with a discharge passage 18 for guiding the cold air to the chamber 9 and a suction passage for guiding return cold air from the chamber 9 is installed in the wall. A damper 20 unit is contained in the discharge passage of the insulator 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator damper device which divides a heat insulating box body by partition walls and distributes cool air from a cooler to a refrigerator compartment and a freezer compartment by a blower.

[0002]

2. Description of the Related Art In recent years, many refrigerators are arranged such that a refrigerator room, which is frequently used, is placed at the uppermost portion so that a user can easily view stored items, and a freezer room is arranged below the refrigerator room. Normal,
Since the cooler is placed in the cooling room arranged at the back of the freezing room, a duct is provided from the cooling room to the back of the refrigerator through a damper device in order to enable the supply of cool air to the entire region of the refrigerator.

[0003]

However, since the conventional refrigerator damper device is provided at the back of the refrigerator compartment, there is a problem that the internal volume of the refrigerator becomes small.

The present invention solves the above problem,
An object of the present invention is to provide a refrigerator damper device in which a discharge passage and a suction passage are provided separately in a partition wall provided between a refrigerator compartment and a freezer compartment, and a damper device is housed in the discharge passage. .

[0005]

According to the first aspect of the present invention, a refrigerating room and a freezing room are formed by partitioning the heat-insulating box body by partition walls, and the cool air cooled by the cooler is cooled by the blower. In a refrigerator for distributing and supplying the cold room and the freezer room, a heat insulating material is formed in the partition wall, the discharge passage for guiding the cold air to the cold room, and the suction passage for guiding the returning cold air from the cold room. A damper device is accommodated in the discharge passage of the heat insulating material, so that the effective volume in the refrigerator compartment can be prevented from being reduced.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view of a refrigerator showing one embodiment of the present invention. FIG. 2 is a cutaway perspective view of a main part of the refrigerator compartment of the present invention. FIG. 3 is a sectional view of a main part of the heat insulating box of the present invention. FIG. 4 is an enlarged view of a main part of the damper device of the present invention.

A refrigerator 1 comprises a steel box outer box 2 opening forward, an inner box 3 made of hard synthetic resin opening front and incorporated in the outer box at intervals. The main body 5 is constituted by the foamed polyurethane heat insulating material 4 filled between the boxes 2 and 3 by an in-situ foaming method. The interior of the main body 5 is formed integrally with the inner box 3 and has a molded heat insulating material 6 therein.
A refrigerator compartment 9 is formed on the upper side, and a freezer compartment 10 is formed on the lower side. The front opening of the refrigerator compartment 9 is closed by a door 11, and the front opening of the freezer compartment 10 is closed by a drawer door 12 so as to be openable and closable.

[0009] A cooling chamber 14 is defined by a partition plate 13 at the back of the freezing chamber 10, and a cooler 15 is disposed in the cooling chamber 14. A blower 16 is provided above the cooler, and a freezer compartment discharge port 17 is provided above and in the center of the partition plate 13, and a freezer compartment intake port 17 is provided below.
A is provided.

A molded heat insulating material 7 at the rear portion in the partition wall 8 is formed of styrene foam or the like, and the discharge passage 1 for guiding cool air cooled by the cooler to the refrigerator compartment 9 by the blower 16.
8 and a suction passage 19 for guiding return cooling from the refrigerator compartment.

A damper device 20 is accommodated in the discharge passage 18 of the molded heat insulating material 7. The damper device 20 includes a rectangular case 21 having upper and lower surfaces opened, a damper 22 rotatably provided in the case, a stepping motor or a DC motor attached to the outer surface of the case 21 and driving the damper 22 to rotate. Motor 23 consisting of
It is composed of

A flange 24 extending outward is formed on the periphery of the upper opening of the case 21, and seal portions 25 and 26 with which the damper 22 contacts are formed inside the case 21.

The damper device 20 shuts off the cool air supplied from the cooling chamber 14 to the refrigerating chamber 9 while the damper 22 is in contact with the seal portions 25, 26.

In the thus constructed refrigerator damper device, the cool air cooled by the cooler 15 is supplied to the blower 1.
By 6, the air is blown out of the freezer compartment outlet 17 into the freezer compartment 10. And after circulating in the freezing room 10 and cooling,
The cool air returns to the lower part inside the cooling chamber 14 from the lower freezing chamber suction port 17A. Thereby, the freezing room 10 is maintained at a predetermined freezing temperature (−20 ° C.). A part of the cool air blown out from the blower 16 flows into the discharge passage 18 of the molded heat insulating material 7 and the case of the damper device 20. Through the inside 21, it flows into the refrigerator compartment rear duct 27. Then, after rising in the duct, the air is blown out into the refrigerator compartment 9 from the refrigerator outlet 28. The motor 23 of the damper device 20 is controlled by a control device (not shown) provided with a sensor for detecting the temperature in the refrigerator compartment 9, and rotates the damper 22 to adjust the amount of cool air flowing through the case 21. As a result, the supply of cold air to the refrigerator room rear duct 27 is controlled, and the refrigerator room 9 is cooled.
Is maintained at a predetermined refrigeration temperature (+ 5 ° C.).

The cold air circulated in the refrigerator compartment 9 is supplied into the vegetable compartment 29 from the suction passage 19 of the molded heat insulating material 7. Then, after circulating in the vegetable room 29 and indirectly cooling the inside of the container (not shown), the cool air returns to the lower part of the cooling room 14 via the vegetable room return duct 31 in the partition wall 30. As a result, the vegetables in the container are prevented from drying from + 8 ° C to +
It is kept cool at a temperature of about 10 ° C.

As described above, in the present invention, since the damper device 20 is provided in the discharge passage 18 formed in the molded heat insulating material 7 at the rear portion inside the partition wall 8, the effective effect in the refrigerator compartment 9 by the conventional damper device. The volume is not reduced. Further, since the damper device 20 is housed in the discharge passage 18, there is no need to provide a sealing material for preventing the cool air from leaking into the suction passage 19 forming the return passage from the duct device. Therefore, the supply amount can be increased.

[0017]

According to the first aspect of the present invention, a refrigerator compartment and a freezer compartment are formed by partitioning the heat insulating box body by partition walls, and the cool air cooled by the cooler is blown by the blower into the refrigerator compartment. And a refrigerator for distributing and supplying into the freezer compartment, a heat insulating material having a discharge passage for guiding cold air to the refrigerator compartment and a suction passage for guiding return cold air from the refrigerator compartment is installed in the partition wall, Since the damper device is housed in the discharge passage of the heat insulating material, it is possible to prevent the effective volume in the refrigerator compartment from being reduced. Moreover, since the damper device is housed in the discharge passage of the molded heat insulating material disposed in the partition wall, the air path around the damper device can be simplified.

[Brief description of the drawings]

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

FIG. 2 is a cutaway perspective view of a main part of the refrigerator compartment of the present invention.

FIG. 3 is a sectional view of a main part of the heat insulating box of the present invention.

FIG. 4 is an enlarged view of a main part of the damper device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Refrigerator 4 Heat insulating material 5 Main body 7 Molded heat insulating material 9 Refrigerator room 10 Freezer room 15 Cooler 16 Blower 18 Discharge passage 19 Suction passage 20 Damper device

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Osamu Mochizuki 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd.

Claims (1)

[Claims] 1. A refrigerator in which a heat insulation box is partitioned by partition walls to form a refrigerator compartment and a freezer compartment, and cool air cooled by a cooler is distributed and supplied to both the refrigerator compartment and the freezer compartment by a blower. In the partition wall, a heat insulating material having a discharge passage for guiding cold air to the refrigerator compartment and a suction passage for guiding return cool air from the refrigerator compartment is installed, and in the discharge passage for the heat insulating material, A refrigerator damper device containing a damper device.