JPH0833268B2 - refrigerator - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a cold air forced circulation type refrigerator having a freezing compartment, a refrigerating compartment, and a third compartment.

Conventional Technology A conventional example will be described with reference to FIG. 1 is the refrigerator body,
2 is a freezing room, 3 is a refrigerating room, 4 is a third room,
The refrigerating chamber 3 is divided into upper and lower parts by a partition wall 5.
Further, the partition wall forms the ceiling surface 6 of the third chamber 4, and inside the partition wall, the main duct 7 for introducing cold air into the third chamber 4 and the refrigerating chamber 3 and the third chamber 4 are provided. A suction duct 8 for sucking the returned cool air is buried. Reference numeral 9 denotes a temperature control device, which includes a front heat insulating case 9a, a rear heat insulating case 9b, and a cover 9c.
And a third chamber 4 and a damper opening / closing device (not shown) for adjusting the amount of cold air discharged into the refrigerating chamber 3 therein.
A damper opening / closing device 10 for adjusting the amount of cold air discharged to Further, 10a is a temperature sensitive tube for detecting the temperature inside the third chamber 4 and controlling the opening degree of the damper opening / closing device 10, and 11 is
It is a dial for changing the set temperature of the third chamber by adjusting the opening characteristic of the damper opening / closing device 10. 12 is a temperature control device 9
It is a cool air discharge passage provided inside and is connected to the main duct 7 of the partition wall 5. Further, 13 is a door of the third chamber 4,
The third chamber 4 is defined together with the bottom plate 14. Fifteen
Is a cooler, and an air blower (not shown) is arranged above it, and 16 is an air blow duct for guiding the cool air discharged from the air blower to the temperature control device 9.

In such a configuration, the air cooled by the cooler 15 is
A blower (not shown) forcibly circulates in the freezer compartment 2 and reaches the temperature control device 9 via the blower duct 16, respectively, a damper opening / closing device (not shown) for the refrigerating compartment, and a damper opening / closing for the third compartment. The amount of discharge is controlled by the device 10 so that each chamber has a predetermined temperature, and a cooling chamber discharge passage (not shown) to the refrigerating chamber 3 and a cool air discharge passage to the third chamber, respectively.
From 12 through the main duct 7 and the suction duct 8
The temperature is returned to 15, and the same operation is continued thereafter to perform cooling.

The third chamber 4 has a chilled (about 0 ° C.) ice temperature (-1 ° C.) lower than the normal refrigerating temperature (3 to 5 ° C.) and higher than the freezing chamber temperature in recent years, and a partial freezing ( It is required to switch to a temperature suitable for fresh preservation of each food, such as about -3 ° C).
A dial 11 is provided to change the opening characteristic of 10.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in such a configuration, in order to switch the set temperature of the third chamber 4, the dial 11 of the temperature adjusting device 9 arranged in the lower part of the bottom plate 14 of the third chamber 4 is operated. However, if a large amount of food is stored in the refrigerating compartment 3, it is difficult to operate and the dial 11 is at the back, making it difficult to make accurate adjustments. It was In order to solve this problem, in order to operate the dial 11 of the damper opening / closing device of the third chamber 4 in front of the inside of the refrigerator, a conversion mechanism is usually required between the lever in front of the refrigerator and the dial 11. age,
Not only the structure is complicated and the cost is increased, but also there is a defect that the adjustment accuracy is lowered due to these mechanical tolerances.

In view of the problems of the above-mentioned conventional example, the present invention is capable of accurately adjusting the temperature without complicating the mechanism while providing the third chamber temperature switching lever at the front part of the refrigerator. An object of the present invention is to provide a refrigerator equipped with a low-cost temperature switching device.

Means for Solving the Problems In order to solve the above problems, the refrigerator of the present invention has a temperature control tube of a damper opening / closing device, a control duct for introducing a part of the cold air discharged from the main duct opening, and The cooling air introduction passages are provided in the partition wall and the temperature control device, respectively, and the shutter for adjusting the amount of cold air from the main duct to the control duct is provided at the front part of the inside of the refrigerator.

Effect of the Invention With the above-described configuration, the amount of cold air introduced into the control duct, that is, the amount of cold air into the temperature-sensitive cylinder of the damper opening / closing device, can be easily changed by opening / closing the shutter, and the set temperature can be switched. Is. Also, the shutter is
The lever can be easily installed in front of the third chamber, and the lever integrated with the shutter can be easily operated from the front of the inside of the refrigerator.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 3. The same components as those in the related art are denoted by the same reference numerals, detailed description thereof will be omitted, and only different portions will be described.

In the figure, reference numeral 17 denotes a control duct provided in the partition wall 5, which is connected to a cold air introduction passage 18 formed in the temperature control device 9, and the cold air introduction passage 18
A temperature sensing cylinder 10a of the damper opening / closing device 10 is arranged inside. The opening 17a of the control duct 17 and the opening 7a of the main duct 7 are arranged side by side in the cool air discharge casing 19, and a shutter 20 is provided in front of them.
Further, the shutter 20 is integrally provided with an operation lever 20a, and by sliding the operation lever 20a, the shutter 20a
Will be moved. 19a is a cold air discharge casing 1
9 is a cold air discharge opening to the third chamber 4,
Reference numeral 1 is an adjusting dial of a damper opening / closing device (not shown) for a refrigerating room.

In such a configuration, when the operation lever 20a is moved in the direction b in the figure, the shutter 20 limits the amount of cool air from the main duct 7 to the control duct 17, and the temperature of the temperature sensitive cylinder 10a of the damper opening / closing device 10 rises. Damper opening / closing device 10
And the amount of cold air to the main duct 7 increases. At the same time, the opening 7a of the main duct 7 also becomes large due to the movement of the shutter 20. As a result, the set temperature of the third chamber 4 is lowered. On the contrary, operating lever 20
When moving in the direction of "a" and "a" in the figure, the opposite result is obtained, and the set temperature of the third chamber 4 rises.

As described above, according to this embodiment, the set temperature of the third chamber 4 can be easily switched by operating the shutter 20 in front of the third chamber.

EFFECTS OF THE INVENTION As described above, according to the present invention, a control duct for making a part of the cool air discharged from the main duct opening to the temperature-sensitive cylinder of the damper opening / closing device and a cold air introduction passage, a partition wall, and a temperature adjusting device, respectively. Since a shutter for adjusting the amount of cold air from the main duct to the control duct is provided in the vicinity of the control duct, the main duct and the control duct are directed toward the front of the refrigerator,
If it is extended, the set temperature of the third chamber can be easily switched in front of the third chamber, so that it is not necessary to remove the food in the refrigerator and adjust the dial as in the conventional case.

2 Since the internal temperature of the damper opening / closing device itself in the third chamber is not adjusted to change the set temperature, this damper opening / closing device does not require an extra switching mechanism, and a low-cost damper opening / closing device is adopted. Is possible.

3 Normally, the damper opening / closing device can only adjust the opening characteristic of one certain point. Therefore, when the temperature is switched to any other setting temperature, the damper opening / closing device has a large variation in the opening characteristic, and the setting temperature has a large variation. However, according to the present invention, by using only one opening characteristic that is adjusted, the temperature switching is a simple structure that switches the amount of cold air introduced into the temperature sensing part of the damper opening / closing device with a shutter, The setting temperature switching accuracy is also good.

4 The workability is good because it is not necessary to extend the temperature sensitive tube outside the temperature control device and it can be installed in the refrigerator body while being housed inside the temperature control device.

It is possible to provide the refrigerator having the temperature switching device for the third chamber, which has the effects of the above, and is excellent in operability, cost, temperature switching accuracy, and workability.

[Brief description of drawings]

FIG. 1 is a sectional view of the vicinity of a third chamber of a refrigerator showing an embodiment of the present invention, FIG. 2 is a sectional view taken along the line AA 'in FIG. 1, and FIG. 3 is a perspective view of a temperature control device. FIG. 4 is a sectional view of the vicinity of the third chamber of the conventional example. 2 ... Freezer room, 3 ... Refrigerator room, 4 ... Third room, 5 ...
Partition wall, 6 ... Ceiling surface, 7 ... Main duct, 9 ... Temperature control device, 10 ... Damper opening / closing device, 10a ... Temperature sensing tube, 12 ...
… Cold air discharge passage, 17 …… Control duct, 18 …… Cold air introduction passage, 20 …… Shutter.

Claims (1)

[Claims] 1. A freezing room partitioned by a partition wall, a refrigerating room, a third room forming a ceiling surface by using at least a part of the partition wall, and cold air discharge to the third room. A damper opening / closing device for adjusting the amount, and a temperature control in which a cold air discharge passage to the third chamber and a cold air introduction passage for guiding the cool air to the temperature sensing cylinder are formed by accommodating a temperature sensing cylinder of the damper opening / closing device. An apparatus, a partition wall having a main duct connected to the cold air discharge passage for guiding cold air to the third chamber, and a control duct connected to the cold air introduction passage for guiding cold air to the temperature sensing cylinder; A refrigerator comprising a shutter provided in the vicinity of the control duct for introducing a part of the cool air discharged from the opening of the duct into the opening of the control duct and adjusting the amount of the cold air introduced.