JP2508035Y2 - refrigerator - Google Patents

Description

TECHNICAL FIELD The present invention relates to a means for adjusting the temperature of a refrigerating compartment in a refrigerator.

2. Description of the Related Art FIGS. 7 to 11 show means for adjusting the temperature of a refrigerating chamber in a conventional refrigerator disclosed in, for example, Japanese Utility Model Publication No. 64-35385.

In the figure, 1 is a refrigerator main body, 2 is a freezer compartment, 3 is a cooler compartment, 4 is a duct, 5 is a refrigerating compartment, and 6 is a control box. 6a, 6b and 6c are outlets for blowing cold air into the refrigerating compartment, 7 is a chilled compartment, 8 is a refrigerating compartment damper device, 9 is a chilled compartment damper device, 11 is a fan, and 12 is a vegetable compartment. 14 is a chilled room air passage, 15 is a cold room air passage, 16a, 16b
Is a shelf in the refrigerator compartment, 17 is a heat insulating material, 18a and 18b are thermistors, 2
0 is a refrigerator compartment floor partition.

Next, the operation of the conventional refrigerator shown in FIGS. 7 to 11 will be described. Most of the cool air in the cooler chamber 3 is blown out to the freezing chamber 2 by the fan 11, but a part thereof is sent downward through the duct 4. The cool air that has descended in the duct 4 branches into ducts 4a and 4b and descends. The amount of cold air that has descended through the duct 4b is controlled by the cold room damper device 8 and enters the cold room air passage 15 of the control box 6. Since the control box 6 is formed to the maximum height in the refrigerating compartment 5 and is provided with three outlets 6a, 6b, 6c, the cold air that has entered the air passage 15 of the control box 6 is the outlets. It blows out from 6a, 6b, 6c into the refrigerator compartment 5. The air outlet 6a is opened toward the top of the space above the shelf 16a, the air outlet 6b is opened toward the top of the space above the shelf 16b, and the air outlet 6c is above the refrigerating compartment floor partition 20. It opens towards the top of the space. Even if a large amount of food or the like is stored in the refrigerating chamber 5, these places have many gaps, so that the blown-out cool air is easily spread into the refrigerating chamber 5. According to the number of loading stages of the stored items in the refrigerating compartment 5, in the case of this embodiment, there are three loading stages, so that blowout ports 6a, 6b, 6c are provided at three locations in order to blow cool air to the vacant space above each loading item. Since it is provided, the food in the refrigerating compartment is cooled uniformly, and it is possible to prevent uneven temperature distribution in the refrigerating compartment.

Since the device for adjusting the temperature of the refrigerating compartment of the conventional refrigerator is configured as described above, the shelves 16a and 16b can be continuously or stepwise moved in the vertical direction. In the adjustable system, depending on the adjustment position of the shelf, for example, shelf 16b
When is located slightly below the air outlet 6c, the food placed on the shelf 16b immediately before the air outlet 6c is exposed to cold air in a spot-like manner, and there is a problem that the food is locally frozen.

The present invention has been made to solve the above problems, and the shelf position can be adjusted continuously in the vertical direction or in a stepwise manner, and even if the food in the refrigerator is placed immediately before the outlet. , It is intended to provide a refrigerator in which local freezing is not caused.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention has a plurality of small holes corresponding to φ10 mm or less on the inner surface side of the refrigerating chamber duct, dispersed at intervals of 20 mm or more. To form. In addition, the small holes have a trumpet shape that is narrow inside the refrigerating compartment duct and wide outside.

Effect According to the present invention, since the outlets of the refrigerating compartment duct are formed by dispersing the small holes and have the trumpet shape as in the above-mentioned configuration, the cool air is not discharged at one point. As a result of adjusting the position of the shelves, the cold air is dispersed even when the food comes immediately before the outlet, so it is possible to prevent local freezing.

Embodiment Hereinafter, an embodiment of the present invention will be described with reference to FIGS. The same components as those of the conventional one are designated by the same reference numerals,
Detailed description thereof will be omitted, and only different parts will be described.

In the figure, 1 is a refrigerator body, 2 is a freezer room, 3 is a cooler room, 4 is a ventilation duct, 5 is a refrigerating room, 6 is a control box, 30 is a refrigerating room duct formed integrally with the control box 6, 31a, 31b and 31c are outlets for blowing cold air into the refrigerating compartment. 7 is a chilled room, 8 is a damper device for a refrigerating room, 9 is a damper device for a chilled room, 11 is a fan, 12 is a vegetable room, 14 is an air passage for a chilled room, 15 is an air passage for a refrigerating room, and 17 is a heat insulating material. , 18a and 18b are thermistors, 20 is a refrigerator compartment partition, 2
1,22,23 are the inner boxes constituting the refrigerator main body 1,
Insulation and outer box. Here, what is different from the conventional example is that shelves 31a and 31b that can adjust the position of the refrigerating compartment 5 continuously or stepwise in the vertical direction are provided, and the heat insulating material 17 of the refrigerating compartment duct 30 has a refrigerating compartment. A small hole 32 having an opening equal to or less than φ10 mm on the inner surface side of the duct 30 and a wider opening on the outside.
Air outlets formed by providing a plurality of 20 mm or more at intervals
33 is the point. The position-adjustable shelves 31
The a and 31b can be easily performed by a known mechanism such as a system in which a rack and a pinion are combined or a cantilever mechanism is used to gradually change the shelves.

Next, the operation of this embodiment will be described. As shown in the drawing, the cool air in the cooler chamber 3 reaches the refrigerating compartment air passage 15 by the fan 11 via the air blowing duct 4, the duct 4b, and the refrigerating compartment damper device 8 as in the conventional example. The cold air that has flowed into the refrigerating compartment air passage 15 passes through the small holes 32 provided in the outlets 33a, 33b, 33c in a distributed manner, and is blown into the refrigerating compartment 5 to cool the food in the refrigerator.

Here, the outlets 33a, 33b, 33c are the small holes 3 of the trumpet shape.
Since 2 is formed in a dispersed manner, the discharged cold air is diffused and blown out from the outlet, so that the local freezing of the food can be prevented. The experimental results are as shown in Fig. 6. A metal block specified by JIS-C9607 is placed at a position 30 mm in front of the air outlet, and a small hole diameter and number of holes are set for the air outlet having a total opening area of 314 mm ² . It is evaluated by changing the hole spacing, and the hole diameter is φ10 mm.
Below, if the hole spacing is 20 mm or less, local freezing of food can be prevented. Further, by making the hole shape a trumpet shape, the effect of diffusing cold air can be further improved.

Effects of the Invention As described above, according to the present invention, the outlet of the refrigerating compartment duct is provided with a small hole of 20 mm, which has an opening on the inner surface side of the refrigerating compartment duct of 10 mm or less.
Along with the above intervals, a plurality of dispersed parts are formed,
Since the shape of the small hole is a trumpet shape that is narrow inside the refrigerating room duct and wide outside, it is easy for the cool air from the outlet to diffuse, and the shelf position should be adjusted so that the food comes immediately before the outlet. However, since cold air is not blown to one point, it is possible to prevent local freezing of food and provide a highly reliable refrigerator.

[Brief description of drawings]

FIG. 1 is a front sectional view of a refrigerator showing an embodiment of the present invention,
2 is a side sectional view of the refrigerator, FIG. 3 is a front view of a control box, FIG. 4 is a sectional view taken along line AA of FIG.
FIG. 5 is a rear view of the control box, FIG. 6 is a graph showing the relationship between the inner diameter of the duct and the metal ingot temperature, FIG. 7 is a front sectional view of a conventional refrigerator, FIG. 8 is a side sectional view of a conventional example, 9 is a sectional view taken along the line BB in FIG. 10, FIG. 10 is a front view of a conventional control box, and FIG. 11 is a rear view of a conventional control box. 5 ... Refrigerator compartment, 6 ... Control box, 8 ... Damper device, 30 ... Refrigerator compartment duct, 31a, 31b ... Control shelf, 33a, 33b, 33c ... Air outlet, 32 ... Hole.

Claims (2)

(57) [Scope of utility model registration request] 1. A refrigerating compartment having a shelf that can be vertically or continuously adjusted in a continuous or stepwise manner, a control box for opening and closing a damper device in response to a signal from a temperature detector, and an outlet for the refrigerating compartment. It is formed integrally with the control box or is connected to each shelf of the refrigerating compartment and consists of a refrigerating compartment duct that distributes cool air, and the outlet has a small hole whose opening on the inner surface side of the refrigerating compartment duct is φ10 mm or less. A refrigerator characterized by being formed by dispersing a plurality of pieces at intervals of 20 mm or more. 2. The refrigerator according to claim 1, wherein the small hole has a trumpet shape which is narrow inside the refrigerator compartment duct and widens outside.