JP2563431B2 - Refrigerator with a manual airflow controller - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator equipped with a manual air flow controller that adjusts the flow rate of cold air by manually operating a damper.

2. Description of the Related Art FIGS. 5 to 9 show a refrigerator having a conventional manual air flow rate adjusting device, the structure of which will be described below.

In the figure, reference numeral 1 denotes a refrigerator main body, which is composed of an outer box 2, an inner box 3 and a heat insulating material 4 filled between the boxes 2 and 3. The inside of the main body is divided into two upper and lower chambers by a partition wall 5, and an upper part is a freezing chamber 6 and a lower part is a refrigerating chamber 7. A cooler 8 extending in the vertical direction is arranged on the inner surface of the freezer compartment 6. A coil cover 10 made of a heat insulating material 9 and a fan cover 11 made of synthetic resin located on the front surface of the coil cover 10 are attached to the front surface of the cooler 8.

The fan cover 11 has an outlet 12 for cool air in the upper part and an intake port 18 in the lower part. Then, the cool air cooled by the cooler 8 is guided by the blower 15 from the air outlet 14 and the air passage 14 that penetrates the partition wall 5 formed between the fan cover 10 and the coil cover 10 to the refrigerating chamber 7. Has been. A cooling air return passage (not shown) from the refrigerating compartment 7 is provided in the partition wall 5.

Reference numeral 16 is a columnar damper for manually adjusting the flow rate of the cool air flowing through the air passage 14. The damper 16 is attached by being sandwiched between a pair of flanges 17 and 18 extending from the freezer compartment 6 side of the fan cover 11 to the air passage 14 side, and the opening 19 of the fan cover 10 formed between the flanges 17 and 18. A part of the periphery is more exposed. Then, the lower flange 18 extends until it comes into contact with the coil cover 10, forms a hole 20 in the middle, and also partially forms a hole 21 in the damper 16, and the through hole formed by the hole 20 and the hole 21. Adjust the flow rate of cold air with. Further, a shaft 22 extending downward is integrally formed in the middle of the damper 16, and a shaft hole 23 of the lower flange 18 is formed.
It is inserted into and is freely rotatable. Reference numeral 24 is a screw for fixing the shaft 22 from the upper flange 17 to prevent the shaft 22 from coming off. Further, two ribs 25 and 26 are formed on the base of the flanges 17 and 18 and the fan plate 11 for reinforcement.

However, in the above configuration, although the upper and lower flanges 17 and 18 are formed integrally with the fan cover 11 from synthetic resin,
The weight of the damper 16 makes it difficult to maintain a flat surface.
There was a case where a gap was generated between the cold storage chamber and the cold storage chamber, and cold air having a flow rate higher than the desired flow rate was flowed to cool the refrigerating chamber 7 too much. Also screws
Since the shaft 22 is tightened by 24, the damper 16 may not rotate due to excessive tightening. Further, if this tightening is weak, there is a problem that the refrigerating chamber 7 cannot be cooled when the holes 21 and 21 are completely closed at different positions.

In view of the above problems, the present invention provides a refrigerator equipped with a manual air flow rate control device that prevents rattling of a damper and a flange.

Means for Solving the Problems In order to achieve the above object, the present invention forms a pair of upper and lower flanges so as to block the air passage from a fan cover,
An opening for damper operation is provided in the fan cover between the flanges, and a connecting portion for connecting the flanges is formed at a position different from this opening, and the flange has a ventilation port that is opened and closed by the damper and regardless of the damper. It forms an open ventilation opening. Further, the damper is made slightly larger than the dimension between the flanges, and a shaft extending vertically is provided.

Action According to the present invention, the damper is brought into close contact between the flanges and the flanges are connected by the connecting portion, so that rattling is eliminated. Further, since the cool air is always supplied from one of the vent holes, the temperature does not rise further.

EXAMPLES An example of the present invention will be described below with reference to FIGS. 1 to 4, but the same components as those in the prior art will be designated by the same reference numerals and detailed description thereof will be omitted.

Reference numeral 31 is a fan cover formed of synthetic resin on the front surface of the coil cover 10 so as to form the air passage 14. A pair of upper and lower flanges 32, 33 extend from the fan cover 31 so as to cross the air passage 14. And the lower flange 33 is the air passage 14
Is completely closed, and the tip 34 is a groove formed on the coil cover 10.
It is inserted into 35 and positioned. The flanges 32, 33
An opening 36 is formed between the freezer compartment 6 side and the flange 3 on the opposite side.
A connecting portion 37 connects the two and 33 together.

A columnar damper 38 made of synthetic resin is provided between the flanges 32 and 33. This damper 38
The temperature of the refrigerating room 7 is roughly indicated by numbers on the periphery of 1 to 7
Are shown, and a part thereof faces the freezer compartment 6 side through the opening 36. The damper 38 is integrally formed with a hollow shaft 39 extending vertically in the middle, and the holes 32a, 3 of the flanges 32, 33 are formed.
It is rotatable through 3a. Further, the damper 38 is formed to be slightly larger than the dimension between the flanges 32 and 33. Reference numeral 40 denotes a hole through which cool air is formed in the damper 38, and the flow rate of the cool air is adjusted in combination with the vent 41 of the flange 33. The flange 33 is also formed with a vent hole 42 that is not affected by the damper 38.

In such an arrangement, the damper 38 is fitted with flanges 32,3
To install between the three, the flanges 32 and 33 are bent and the shaft 39 is inserted into the holes 32a and 33a.

Therefore, the damper 38 is pressed and attached by the elasticity of the synthetic resin of the flanges 32 and 33,
The clearance is eliminated, cold air is prevented from leaking, and the temperature of the refrigerating compartment 7 can be reliably adjusted. Also, the hollow part of the shaft 39 and the ventilation hole
Since cold air is supplied from 42 regardless of the damper 38, the temperature of the refrigerating chamber 7 is maintained even if the vent hole 41 is completely closed due to a malfunction of the damper 38.

Further, the flanges 32 and 33 are prevented from being displaced due to the connecting portion 37 and the flanges 33 are locked to the coil cover 10 at one end, so that the horizontal portion is easily maintained and the operability of the damper 38 is increased. .

EFFECTS OF THE INVENTION As is apparent from the above-described embodiment, the present invention makes the damper slightly larger than the dimension between the flanges so that the elasticity of the flanges allows the dampers to adhere to each other so that there is no clearance and the temperature of the cold air is kept constant by maintaining the temperature constant. In addition, since the flange is connected at the connecting part, it is less likely to bend and a gap is less likely to occur.

Furthermore, since there are ventilation holes that are not affected by the damper,
The refrigerating room can always be maintained at the refrigerating temperature.

[Brief description of drawings]

1 is a perspective view of a temperature control device showing an embodiment of the present invention, FIG. 2 is a sectional view taken along line AA of FIG. 1 with a coil cover, and FIG. 3 is temperature control in FIG. FIG. 4 is a perspective view of a main part of the refrigerator as viewed from above, FIG. 4 is a central cross-sectional view of the main part of the refrigerator on the freezer side, and FIG. FIG. 5 is a sectional view taken along the line BB of FIG. 5 with a coil cover, FIG. 7 is a central sectional view of the main part of the conventional refrigerator on the freezing room side, and FIG. 8 is seen from diagonally above in FIG. FIG. 9 is a perspective view of a main part, and FIG. 9 is a front view of a conventional refrigerator on a freezing room side. 6 ... Freezer, 7 ... Refrigerator, 8 ... Cooler, 10 ... Coil cover, 31 ... Fan cover, 32, 33 ... Flange, 37 ... Coupling part, 38 ... Damper.

Claims (1)

(57) [Claims] 1. A freezer compartment, a refrigerating compartment, a heat exchanger arranged on the rear surface of the freezer compartment, and a heat insulating material which is located in front of the heat exchanger and constitutes an air passage for cool air by a blower. A coil cover, a fan cover made of synthetic resin, and a damper provided in the air passage for adjusting the flow rate of cool air. The fan cover has a pair of upper and lower flanges so as to close the air passage, and a gap between the flanges. In order to operate the damper from the freezer side, an opening that exposes a part of the damper, a connecting portion that is connected to the flange at a position different from the opening, and a ventilation port that is opened and closed by the damper formed on the flange. , Equipped with a vent opening regardless of the damper,
The damper is slightly larger than the dimension between the flanges, and a disc-shaped shaft extending vertically is provided at the center,
A refrigerator provided with a manual air flow rate adjusting device having a hole formed through the shaft in the flange.