JPH05322421A - Refrigerator - Google Patents

Abstract

PURPOSE:To contrive the improvement of operability in mounting a cooling air adjusting dial and the prevention of its detachment and of loss of its rotating power. CONSTITUTION:The refrigerator is provided with closing plates 21 and 22 formed integrally with a fan guard 12, an opening 23 between these closing plates, a side wall 24 connected between the closing plates, cooling air passage openings 25 and 26 formed on the closing plates and a recess-like notch 33 for a guide for use in mounting the cooling air adjusting dial 20 to the one side of the opening 23 from the front face of the fan guard. The cooling air adjusting dial is provided with a shaft 29 and the closing plate is provided with a shaft hole 30 for supporting the rotation of the dial. The closing plate 21 is provided with a groove so inclined as to gradually narrow the recess-like notch from its contact part toward the shaft hole.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator in which a cooler and a blower are provided in the interior of a freezing room to supply cold air to the freezing room and the refrigerating room. To
The present invention relates to an improvement of a cold air passage adjusting structure of a refrigerator, which is adjusted by a cold air adjusting dial arranged in a cold air passage communicating with a refrigerating compartment.

[0002]

2. Description of the Related Art A conventional structure of this type will be described with reference to FIGS. Reference numeral 36 denotes a refrigerator main body, and this main body 36 has a freezer compartment 37 at an upper portion and a refrigerating compartment 38 at a lower portion 39, 40.
Is a door that closes the front openings of the chambers 37 and 38.
Is a freezer compartment door, 40 is a refrigerating compartment door, 41 is an inner box forming a freezing room and a refrigerating room, 42 is an outer box, 43 is heat insulation filled between the inner box 41 and the outer box 42 Indicates the material. 44 is a partition wall that divides the freezer compartment from the refrigerating compartment, 45 is a cooler installed on the back wall of the freezer compartment 37, and a mouth ring plate 46 formed of a heat insulating material such as Styrofoam is provided on the front surface of the cooler 45. A fan guard 47 located in front of the mouth ring plate 46 is attached. The fan guard 47 has an outlet 48 for cool air in the upper part and an intake port 49 in the lower part. The cool air cooled by the cooler 45 is blown by the blower 50 and the fan 51 placed in correspondence with the mouth ring 46a of the mouth ring plate 46 and the cooler 45 by the suction port 49 provided below. It circulates in the freezer so as to return to. On the other hand, a part of the cool air cooled by the cooler 45 is supplied to the fan guard 4 from one corner of the mouth ring plate 46.
7 and the mouth ring plate 46, passing through the partition wall 44 and passing through the cold air passage 52 reaching the refrigerating compartment 38 to the refrigerating compartment 38, and the returning cool air passes through the return path 53 provided in the partition wall 44. It circulates so as to return to the cooler 45.

Reference numeral 54 is a cylindrical cold air adjusting dial for manually adjusting the flow rate of the cool air flowing through the cold air passage 52. The cold air adjustment dial 54 is mounted between the closing plates 55 and 56 that close the pair of cold air passages 52 extending from the freezing chamber 37 side of the fan guard 47 to the cold air passage 52 side. The opening 57 of the fan guard 47 that is formed faces part of the peripheral edge. The lower closing plate 56 is the mouth ring plate 46.
And a cold air passage opening 58 is formed in the middle thereof, and a cold air passage opening 59 is partially opened in the cold air adjusting dial 54.
The amount of cold air sent to the refrigerating chamber 38 is adjusted by changing the area of the passage 60 formed by 8. Also,
A vertically extending shaft 61 is integrally formed in the middle of the cold air adjusting dial 54, and is inserted into shaft holes 62 and 63 formed in the closing plates 55 and 56, respectively, so as to be rotatable.

It should be noted that, in this type of conventional example, the utility model number 58-226 is used.
There is one shown in No. 80.

[0005]

The conventional refrigerator having such a structure has the following problems.

The upper and lower closing plates 55 and 56 are the fan guards 4.
7 is formed integrally with the synthetic resin, but when the cold air adjusting dial 54 is inserted between the closing plates 55 and 56, the closing plate 5
Shaft 61 with 5, 56 installed in the middle of the cold air adjustment dial 54
It had to be pushed over the height of, and it was difficult to secure the plane. For example, when the elasticity of the closing plates 55, 56 exceeds the elasticity of the resin, the shaft 61 and the closing plates 55, 56 are rotatably fitted in the shaft holes 62, 63 provided in the closing plates 55, 56. However, when the cold air adjusting dial 54 is attached and then rotated, the shaft 61 may be bent due to warping or deformation and the shaft hole 6
Even if it falls off from No. 2, 63 or even if it does not fall off, the fitting force of the shaft 61 will weaken, so the part where the food is brought to the freezing room 37 side of the cold air adjustment dial 54 by taking in and out the stored food. The cold air adjustment dial 54 may be rotated to a position other than the set position just by touching, and the amount of cold air blown into the refrigerating compartment 38 is changed accordingly, and the temperature controller ( There is a problem in that the temperature of the freezer cannot be adjusted to the temperature expected by the user due to a change in the temperature-sensing time (not shown).

Further, when the dimension between the closing plates 55 and 56 becomes narrow due to warping or the like, the cold air adjusting dial 54 is provided.
When inserting the shaft 61 into the shaft holes 62 and 63, the workability was extremely poor, and it took time to guide and insert the shaft 61 to the shaft holes 62 and 63, and there was also a problem in workability.

The present invention has been made in view of the above points, and an object of the present invention is to obtain a refrigerator free from the above problems.

[0009]

According to the present invention, in order to solve the above-mentioned conventional problems, a fan guard is provided with a pair of upper and lower obstruction plates so as to obstruct the cold air passage, and a cold air adjustment dial is interposed between the obstruction plates. An opening, a side wall connecting the closing plates at a position different from this opening, a cold air passage opening and closing by a cold air adjusting dial formed on the closing plate, and a cooling air adjusting dial installation guide guide provided on one side of the opening Further, a concave cutout is provided, and further, the cold air adjustment dial has a disc shape, a shaft extending in the same direction as the concave cutout is provided in the center, and a shaft hole penetrating the shaft is provided in the closing plate. .. Furthermore, the part where the concave notch provided in the opening of the closing plate abuts is formed into a groove shape so that the upper side and the side of the concave notch face each other in the front-rear direction, and the groove has a width and a height. Both directions are inclined so as to narrow toward the cold air adjusting dial shaft penetrating shaft hole provided in the closing plate. Furthermore, the cold air adjusting dial is made slightly smaller than the fan guard opening, and the shaft provided in the cold air adjusting dial is made slightly smaller than the concave notch provided in the opening. Furthermore, the cool air adjusting dial has a portion 1 to 3 m from the opening, which is in contact with the front flange portion of the cool air passage opening provided in the closing plate.
The above problem is solved by providing a protrusion having a smooth shape in the insertion direction, which has a spring property increased by about m.

[0010]

In the cold air passage adjusting structure of the refrigerator according to the present invention, when the cold air adjusting dial is attached, the concave notch formed on one side of the opening provided in the fan guard and the cold air adjusting dial are provided. If the cold air adjustment dial is inserted into the opening of the fan guard with the shaft in the same direction, the shaft of the cold air adjustment dial will be guided to the groove that is inclined so that it narrows toward the shaft hole provided in the closing plate, and it will be securely in the shaft hole. Can be fitted to. In addition, since the closing plate is connected by the side wall except for the opening portion, it does not deform even when the cold air adjusting dial is inserted, and it is possible to have a structure in which warpage does not easily occur. Further, the cold air adjusting dial inserted from the front side is fitted with the shaft and the shaft hole so that the front flange portion of the cold air passage opening provided in the closing plate is made higher by about 1 to 3 mm than the opening provided in the cold air adjusting dial. Since the protrusion with a spring shape that has a gentle shape abuts in the insertion direction, even if force is applied in the direction in which the cold air adjustment dial is about to come out, the protrusion will be in front of the cold air passage opening provided on the closing plate. This is to prevent the flange from being caught and coming off.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to an embodiment shown in FIGS. 1 to 6. Reference numeral 1 denotes a refrigerator main body, and this main body 1 has a freezer compartment 2 at an upper portion and a refrigerating compartment 3 at a lower portion. Reference numerals 4 and 5 denote doors that close front opening portions of the chambers 2 and 3, 4 denotes a freezing compartment door, 5 denotes a refrigerating compartment door, and 6 denotes an inner box forming the freezing compartment and the refrigerating compartment. Reference numeral 7 denotes an outer box, and 8 denotes a heat insulating material filled between the inner box 6 and the outer box 7. Reference numeral 9 is a partition wall that divides the freezer compartment from the refrigerating compartment, 10 is a cooler installed on the back wall of the freezer compartment 2, and a mouth ring plate 11 formed of a heat insulating material such as Styrofoam on the front surface of the cooler 10. A fan guard 12 formed on the front surface of the mouth ring plate 11 and made of synthetic resin is attached. The fan guard 12 has an outlet 13 for cool air in the upper part and an intake port 14 in the lower part. And cooler 1
The cool air cooled at 0 is returned to the cooler 10 by the blower 15 and the fan 16 placed in correspondence with the mouth ring 11a of the mouth ring plate 11 by the blowout port 13 and the suction port 14 provided below. Circulate.

On the other hand, a part of the cool air cooled by the cooler 10 is formed between the fan guard 12 and the mouth ring plate 11 from one corner of the mouth ring plate 11 and penetrates the partition wall 9 to be refrigerated. The cold air that passes through the cold air passage 18 that reaches the chamber 3 reaches the refrigerating chamber 3, and the returned cool air circulates so as to return to the cooler 10 through the return passage 19 provided in the partition wall 9.

Reference numeral 20 denotes a disk-shaped cold air adjusting dial for manually adjusting the flow rate of the cool air flowing through the cold air passage 18. The cold air control dial 20 is a pair of cold air passages 1 extending from the freezer compartment 2 side of the fan guard 12 to the cold air passage 18 side.
Closure plate 2 provided integrally with fan guard 12 that closes 8
It is installed by sandwiching between 1 and 22, and the adjustment is performed by the closing plate 2.
This is performed by exposing a part of the cold air adjusting dial 20 through the opening 23 which is a part of the edge circumference of the closing plates 21 and 22 provided between the 1 and 22.

On the other hand, the closing plates 21 and 22 extend until they come into contact with the mouth ring plate 11, and the edge circumference at a position different from the opening 23 is connected to the mouth ring plate 11 by the side wall 24. Touching. The edge of the side wall 24 constitutes the left and right sides of the opening 23. In addition, cold air passage openings 25 for sending the cold air sent out by the fan 16 to the cold air passages 18 are provided in the closing plates 21, 22.
26 is formed and the cold air control dial 20 is formed.
Also, a cold air passage opening 27 is partially formed.

The area of the cold air passage 28 formed by the cold air passage opening 25 provided in the closing plate 21 and the cold air passage opening 27 provided in the cold air adjusting dial 20 is changed by rotating the cold air adjusting dial 20, The amount of cold air sent to the refrigerator compartment 3 is adjusted. Since the cold air adjusting dial 20 is inserted from the front surface of the opening 23, it is formed slightly smaller than the opening 23.

Reference numeral 29 denotes an integrally provided shaft projecting in the middle of the cold air adjusting dial 20, which is inserted into and fitted into a shaft hole 30 provided in the closing plate 21 to support the cold air adjusting dial 20 for rotation. It will be. Although the shaft 29 is only in one direction, the distance between the side walls 24 and the closing plates 21 and 22 that form the periphery of the cold air adjusting dial 20 is only 0.
By setting the thickness to about 5 mm, the cold air adjusting dial 20 can be operated smoothly without the shaft 29 coming off or the cold air adjusting dial 20 tilting.

Reference numeral 31 is a protrusion for preventing the cold air adjusting dial 20 from coming off in the forward direction.

The projection 31 is integrally provided on the cold air adjusting dial 20 so as to be higher than the height of the opening 23 for inserting the cold air adjusting dial 20 by about 1 to 3 mm. Has a gentle shape. In addition, the rising end 31a of the protrusion 31
Is in contact with the front flange portion 32 of the cold air passage opening 26 provided in the closing plate 21. Therefore, the cold air adjusting dial 20 inserted from the front side does not come out when the rising end portion 31a is caught by the front surface flange portion 32.
Reference numeral 32a is a stopper formed on a part of the front flange portion 32, and is a cold air adjusting dial 20 stopper for adjusting the strength of the air flow sent to the refrigerating chamber 3.

Reference numeral 33 is a concave notch for guiding a guide, which is provided on an upper side which constitutes one side of the opening 23 and through which the shaft 29 of the cold air adjusting dial 20 is passed. This concave notch 3
3 is in contact with the closing plate 21, and the closing plate 2 at the contact portion
The shape of No. 1 is the upper side 33a and the side 3 of the recessed notch 33.
3b are grooves 34 that face each other in the front-rear direction, and the grooves 34 are inclined in the width and height (depth) directions so as to become narrower toward the axial hole 30 of the cold air adjusting dial 20 provided in the closing plate 21. With the surfaces 34a and 34b, the operation of guiding the shaft 29 to the shaft hole 30 is not necessary, and the shaft 29 and the shaft hole 30 can be securely fitted simply by inserting the cold air adjustment dial 20 through the opening 23. .. At this time axis 2
It is necessary to form the groove 9 slightly smaller than the concave cutout 33. Further, since the upper and lower closing plates 21 and 22 are connected at their peripheral edges by the side walls 24, it is easy to secure a flat surface, and warpage is less likely to occur. Further, although the closing plate 21 is lifted up in the process of inserting the shaft 29 into the shaft hole 30, the closing plate 21 can be cooled by the elasticity of the synthetic resin even after the shaft 29 is fitted into the shaft hole 30. Since the 20 can be reliably pressed down, the turning power of the cold air adjustment dial 20 will not become loose.

For the above reasons, the refrigerator having the structure of the present invention can surely achieve the above-mentioned object.

[0021]

EFFECTS OF THE INVENTION Since the present invention has the structure as described above, not only the workability of installing the cold air adjusting dial becomes very easy, but also the cold air adjusting dial comes off after installation and the turning power is loose. Etc. can be prevented.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a refrigerator equipped with the present invention.

FIG. 2 is a cross-sectional view of the essential parts of a refrigerator equipped with the present invention.

FIG. 3 is a sectional view taken along the line AA of FIG. 2 showing a refrigerator equipped with the present invention.

FIG. 4 is a perspective view of a main part of a cold air control dial equipped with the present invention.

FIG. 5 is a side view of a cold air conditioning dial equipped with the present invention.

FIG. 6 is an assembly view of the present invention as seen from below the back side in FIG.

FIG. 7 is a longitudinal sectional view of a refrigerator showing a conventional example.

FIG. 8 is a cross-sectional view of a main part of a refrigerator showing a conventional example.

FIG. 9 is a sectional view taken along line BB of FIG. 8 showing a conventional example.

[Explanation of symbols]

1 ... Refrigerator body, 2 ... Freezer compartment, 3 ... Refrigerator compartment, 4 ... Freezer compartment door, 5 ... Refrigerator compartment door, 6 ... Inner box, 7 ... Outer box, 8 ... Insulating material,
9 ... Compartment wall, 10 ... Cooler, 11 ... Mouth ring plate, 11a ... Mouth ring, 12 ... Fan guard, 13
... Blowout port, 14 ... Suction port, 15 ... Blower, 16 ... Fan, 18 ... Cold air passage, 19 ... Return passage, 20 ... Cold air adjusting dial 21,22 ... Closing plate, 23 ... Opening, 24 ... Sidewall, 25, 26, 27 ... Cold air passage opening, 28 ... Cold air opening,
29 ... Shaft, 30 ... Shaft hole, 31 ... Projection portion, 31a ... Standing end portion, 32 ... Front flange portion, 32a ... Stopper, 3
3 ... concave notch, 33a ... upper side, 33b ... side edge, 34
... Grooves, 34a, 34b ... Sloped surfaces.

Claims (5)

[Claims] 1. A cooling chamber in which a cooler, a blower and the like are arranged is provided in a deep part of a freezing chamber of a heat insulating box body filled with a heat insulating material between an inner box and an outer box, and one wall of the cooler chamber is constituted. By a blower and a fan placed corresponding to the mouth ring part of the mouth ring plate, the refrigerating room is passed through a cool air passage leading from one corner of the air blowing room consisting of the mouth ring plate and a fan guard located in front of the mouth ring plate to the refrigerating room. The amount of cold air blown to
In a refrigerator in which a cool air adjusting dial capable of arbitrarily changing an opening area is arranged at an arbitrary portion of the cool air passage to adjust, a pair of upper and lower closing plates for closing the cool air passage formed in a part of a fan guard. An opening that faces a part of the dial for operating the cold air adjusting dial from the freezer compartment side between the closing plates, a side wall connecting the closing plate at a position different from the opening, and the cooling air formed on the closing plate. A cold air passage opening and closing by an adjusting dial, and a concave notch for guiding guide for attaching the cold air adjusting dial from the front surface of the fan guard is provided on one side of the opening provided between the closing plates. And a refrigerator. 2. A cold air adjusting dial is disc-shaped, and a shaft extending in the same direction as a recessed notch formed in an opening is provided in the center thereof, and a hole penetrating the shaft is provided in a closing plate. The refrigerator according to claim 1, wherein the refrigerator is a refrigerator. 3. The closing plate has a groove-shaped portion at which the concave notch formed in the opening comes into contact so that the upper side and the side of the concave notch face each other in the front-back direction. The refrigerator according to claim 1, wherein the refrigerator is inclined in both height directions so as to become narrower toward a shaft hole for penetrating the cold air adjusting dial shaft provided in the closing plate. 4. The cold air adjusting dial is slightly smaller than the fan guard opening, and the shaft provided in the cold air adjusting dial is made slightly smaller than the concave cutout provided in the opening. The refrigerator according to claim 1. 5. The cold air adjusting dial is provided with a spring property having a height higher than the height of the opening by about 1 to 3 mm at a portion of the cold air passage opening that abuts on the front flange portion of the cold air passage opening provided on the closing plate, and is gentle in the inserting direction. The refrigerator according to claim 1, further comprising a protrusion having a shape.