JPH06249564A - Refrigerator - Google Patents

Abstract

PURPOSE:To obtain a refrigerator with 21 simplified damper which regulates the flow rate of cold air blown through a cold air blow port. CONSTITUTION:Cold air is blown into a compartment through a cold air blow port 41 to cool the compartment. A damper 46 which regulates the flow rate of cold air blown through the cold air blow port 41 and a holder part 68 to which the damper 46 is connected movably are provided. The damper 46 consists of an elastic grip part, an opening part 49 and an operating part which are integrally formed into one piece with the damper 46. The elastic grip part grips and comes in press-contact with the holder part 68 to keep the damper 46 in a still state. The opening part 49 opens and shuts the cold air blow port 41 and the operating part is used to move the damper 46.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator for discharging cold air from a cold air discharge port into a refrigerator for cooling.

[0002]

2. Description of the Prior Art Conventional refrigerators of this type are, for example,
As disclosed in Japanese Patent No. 25111 (F25D21 / 04), an evaporator (cooler) is provided in a freezing room, and cold air cooled by this evaporator is discharged to the freezing room to be cooled and a partition to the refrigerating room is provided. It was configured to guide cool air through a duct provided on a wall and discharge the cool air from a cold air outlet into a refrigerating chamber to cool it. Further, the amount of cold air discharged from the cold air outlet is adjusted by opening and closing the duct internal passage with a manual damper.

[0003]

However, in the prior art, in order to move such a damper, an operation button for grasping by hand and a lever for rotatably engaging both the operation button and the damper to connect them. Had to be provided, which caused an increase in cost due to an increase in the number of parts.
Further, since the structure is complicated, the assembling work is complicated, and the risk of malfunction due to a failure is increased. Further, although the stop position of the damper can be arbitrarily adjusted with the operation button portion, it is difficult to perform the positioning because there is no positioning portion for stopping the damper at a predetermined position.

The present invention has been made to solve the conventional technical problems, and an object of the present invention is to provide a refrigerator having a simplified structure of a damper for adjusting the amount of cold air discharged from a cold air outlet. To do.

[0005]

The refrigerator 1 according to the present invention discharges cool air from the cool air discharge port 41 into the refrigerator to cool it, and a damper 46 for adjusting the amount of cool air discharged from the cool air discharge port 41. And a holding portion 68 with which the damper 46 is movably engaged. The damper 46 holds the holding portion 68 and slidably presses the holding portion 68 to maintain the damper 46 in a stationary state. The clamping pieces 54, 56, the opening / closing part 49 for opening / closing the cold air discharge port 41 or the cold air flow path leading to the cold air discharge port 41, and the operation part 64 for moving the damper 46 are integrally formed. is there.

[0006]

According to the refrigerator 1 of the present invention, the elastic holding pieces 54 and 56 of the damper 46 hold the holding portion 68 and slidably press the holding portion 68 so that the damper 46 is movably engaged with the holding portion 68. To meet. The damper 46 is operated by the operation unit 64.
The opening / closing part 49 opens / closes the cold air discharge port 41 or the cold air flow path leading to the cold air discharge port 41, and the elastic holding pieces 54, 56 remain stationary, so that the amount of cold air discharged from the cold air discharge port 41 is It is adjusted based on the operation of the operation unit 64.

At this time, the damper 46 has the elastic holding piece 5
4, 56, the opening / closing section 49, and the operating section 64 are integrally provided, so that the conventional damper, operating button, and lever
Parts that were needed can be integrated into one part,
The number of parts can be remarkably reduced, and the movement itself of the operating portion becomes the movement of the opening / closing portion, and the opening / closing portion can be easily and surely positioned by the elastic holding piece portion.

[0008]

Embodiments of the present invention will now be described in detail with reference to the drawings. 1 is an enlarged vertical side view of a cold air discharge port 41 portion of an ice greenhouse 29 of a refrigerator 1 of the present invention, FIG. 2 is a front view of the refrigerator 1 excluding doors 8 to 11, and FIG. 3 is a vertical side view of the refrigerator 1. is there. First, in FIG. 2 and FIG. 3, a refrigerator 1 is filled with a heat insulating material 2 such as foamed polyurethane, and the inside of a heat-insulating box body 3 having a front opening is partitioned by a partition wall 4 into upper and lower parts. A freezer compartment 6 is formed on the upper side and a refrigerating compartment 7 is formed on the lower side. The front openings of the freezer compartment 6 and the refrigerating compartment 7 are openably and closably closed by rotating heat insulating doors 8 and 9 and a drawer type heat insulating door 11. Has been done.

In the partition wall 4, a partition wall heat insulating material 12 formed of expanded polystyrene or the like is housed. Further, the cooler 1 is located above the partition wall 4 and behind the freezer compartment 6.
3 is provided vertically, and the front side thereof is a rear plate 14 of the freezer compartment 6.
It is partitioned from the freezer compartment 6. Further, a dew tray 16 is arranged below the cooler 13, and a glass tube heater 17 for heating the defroster 13 to defrost it is arranged between the dew tray 16 and the cooler 13. A blower 18 for circulating cold air is arranged above the cooler 13, and a cool air discharge port 19 of the freezer compartment 6 is formed in a rear plate 14 located in front of the blower 18.

A distribution duct 21 extending below the blower 18 is formed inside the rear plate 14, and the distribution duct 21 passes through the partition wall 4 to the back of the refrigerating compartment 7. It communicates with the extending cold air discharge duct 22. Further, a cold air suction port 23 of the freezer compartment 6 is formed in the lower end portion of the back plate 14 and communicates with a space below the cooler 13.

On the other hand, a cold air suction port 24 that opens to the top of the refrigerating chamber 7 is formed in the front portion of the lower surface of the partition wall 4, and the inside of the heat insulating material 12 of the partition wall 4 is rearward from this cold air suction port 24. Cold air suction duct 26 extending to the lower side of the cooler 13 and communicating with the cooler 13.
Are formed. Also, a refrigerating room 7 is provided below the partition wall 4.
Inside, a container 27 that can be pulled out is installed,
A door 28 that is opened and closed by, for example, the delivery of the container 27 is suspended behind the cold air suction port 24 in front of it. An ice greenhouse 29 that is openably and closably closed by the door 28 is configured inside the container 27.

The cold air discharge duct 22 extends to the rear of the container 27, and a thermo mounting plate 31 is attached to the lower end of the cold air discharge duct 22. This thermo mounting plate 3
An air outlet 32 communicating with the lower end of the cool air discharge duct 22 is formed in 1, and a gas-filled damper thermostat 33 is attached to the front surface thereof. The damper thermostat 33 has a baffle plate 34 corresponding to the front of the air outlet 33, and the air outlet 32 is opened and closed by the baffle plate 34 based on the temperature in the refrigerating compartment 7. The damper thermostat 33 is covered with a molded heat insulating material 36, and a duct cover 37 is attached to the front surface of the molded heat insulating material 36 so as to extend downward from the rear of the container 27 to the rear surface of the refrigerating chamber 7.

As shown in FIG. 4, the duct cover 37 has rectangular cold air discharge ports 41, 41 to the ice greenhouse 29 on the upper left and right sides of the front surface thereof, and cool air discharge ports 42 to the refrigerating compartment 7 at predetermined intervals at the lower part.・ Each is drilled. Further, in the molded heat insulating material 36, there is a through hole 43 located in front of and above the baffle plate 34 and corresponding to the back side of the cold air outlet 41, and the baffle plate 3.
4, a through hole 44 is formed above and to the left and right of the damper thermostat 33, passing through the left and right of the damper thermostat 33, and communicating with the lower cool air discharge port 42. With such a configuration, the cold air that has passed through the baffle plate 34 passes through the through holes 43 and from the cold air outlet 41 to the ice greenhouse 2.
9 and through the through hole 44 to the cold air discharge port 42 to the refrigerating chamber 7.

Further, between the duct cover 37 located in front of the damper thermostat 33 and the molded heat insulating material 36, a plate-shaped damper 46 integrally molded of a hard synthetic resin such as polypropylene is attached. The damper 46 has a shape as shown in the rear view of FIG. 5, and rectangular openings 47, 47 are formed in the upper left and right ends of the damper 46. The dampers 46 project forward from the upper ends of the openings 47, 47 and further upward. Strip-shaped closing plates 48, 48 extending in the vertical direction are integrally formed. The opening 47 and the closing plate 48 constitute an opening / closing portion 49. Two groove-shaped engaging holes 51, 51 extending vertically are formed inside the openings 47, 47.
Further, a rectangular holding hole 52 is provided between the engagement holes 51, 51.
Has been drilled.

Furthermore, the opening 4 on the left side from the front side
7, a notch 53 is formed below one side of the substantially U-shape and further extends outward from the one side. Due to such a shape, in the notch 53, an elastic holding piece portion 54 extending downward from above and having a predetermined elasticity, and the elastic holding piece portion 5 are provided.
4, another elastic holding piece 56 extending upward from below so as to face 4 with a predetermined distance and having a predetermined elasticity.
Are integrally formed. On the surface of the elastic holding piece 54 on the right side from the front side, which faces the elastic holding piece 56, convex portions 57, 58, 59 are vertically formed at a predetermined interval from each other. Thus, recesses 61, 62, 63 are formed on the upper side of each of the protrusions 57, 58, 59 at predetermined vertical intervals. Further, below the notch 53, an operation portion 64 protruding forward is integrally formed.

On the other hand, on the back surface of the damper cover 37, as shown in FIG. 6, a pair of left and right protrusions 66, 66 is formed below the cool air discharge ports 41, 41 so as to project therefrom.
Further, a pair of left and right engaging claws 67, 67 is formed on the inner side of the protrusions 66, 66 so as to project outward. Further, a columnar holding portion 68 projecting to the back side is formed below the left side cool air discharge port 41, and a vertically extending window 69 is formed below the holding portion 68. There is.

And, the closing plates 48, 48 of the damper 46
Is inserted into the cool air discharge ports 41, 41 of the damper cover 37 from the back side and is exposed to the front side, and the projections 66, 66 are slidably inserted into the engagement holes 51, 51, respectively, and the engagement claws 67, 67 are provided. Are slidably engaged with both side edges of the holding hole 52. Further, the holding portion 68 is press-fitted between the elastic holding piece portions 54 and 56, and the operating portion 64 is inserted from the window 69 through the damper cover 37.
The damper 46 is attached to the rear surface of the damper cover 37 by exposing it to the front surface side of. Also, due to such a configuration,
The damper 46 can be moved in a predetermined range in the vertical direction by gripping the operation portion 64 by hand.

At this time, the elastic holding pieces 54 and 56 are slidably pressed against both side surfaces of the holding portion 68, and the holding portion 68 moves in the vertical direction of the damper 46 so that the concave portions 61 and 6 are formed.
Selectively enter the inside of 2, 63, and in that state the damper 4
6 is stationary and both elastic sandwiching pieces 54 and 56 maintain their respective stationary states. In particular, the protrusions 57, 58, 59 have a higher protrusion height toward the lower side so that the clamping force can be secured.

Further, with the damper 46 being moved to the lowest position by the operation part 64, the holding part 68 is provided at the lowermost recess 63.
When entering the inside, the closing plate 48 is pulled down to be positioned in front of the cool air discharge port 41 and closes it. Further, the operation unit 6
With the damper 46 moved to the intermediate position by 4, the holding portion 68 enters the intermediate recess 62, the closing plate 48 is slightly pushed up, and the opening 47 partially opens the cold air outlet 41. Furthermore, with the damper 46 moved to the uppermost position by the operation portion 64, the holding portion 68 moves the uppermost concave portion 61.
The closing plate 48 is configured to be pushed up to the upper end so that the cold air discharge port 41 is fully opened by the opening 47.

A machine room 71 is provided at the rear lower corner of the heat insulating box 3.
A compressor 72 that constitutes a well-known refrigeration cycle is installed together with the cooler 13 here. When the compressor 72 and the blower 18 are operated, the liquid refrigerant discharged from the compressor 72 and condensed in the condenser (not shown) is supplied to the cooler 13 after being depressurized and evaporated inside, It takes the latent heat from the surroundings and exerts a cooling effect. The cool air cooled by the cooler 13 is sucked upward by the blower 18 and blown into the freezer compartment 6 from the front cool air discharge port 19. The cold air blown into the freezer compartment 6 circulates and cools there, and then returns to the lower part of the cooler 13 from the lower cool air suction port 23. The operation of the compressor 72 and the blower 18 is controlled by a controller (not shown) based on the temperature of the freezer compartment 6, whereby the freezer compartment 6 is maintained at a predetermined freezing temperature (about -20 ° C).

A part of the cool air blown out by the blower 18 flows into the distribution duct 21, descends through the distribution duct 21, passes through the cool air discharge duct 22, passes through the air outlet 32 and the damper thermostat 33, and as described above. It is blown into the refrigerating chamber 7 from the cold air outlet 42. The cool air that has circulated in the refrigerating chamber 7 cools it, then flows from the cool air suction port 24 into the cool air suction duct 26 and returns to the lower part of the cooler 13. Since the damper thermostat 33 opens and closes the air outlet 32 by the baffle plate 34 based on the temperature inside the refrigerating chamber 7 as described above, the temperature inside the refrigerating chamber 7 is brought to a predetermined refrigerating temperature (about + 5 ° C.) by the damper thermostat 33. Maintained.

On the other hand, since the cold air that has passed through the damper thermostat 33 is directly discharged and supplied into the ice greenhouse 29 from both cold air discharge ports 41, 41, the ice greenhouse 29 is cooled to an ice temperature zone of about 0 ° C. lower than that of the refrigerating compartment 7. Will be done. Further, since the supplied cold air passes through the damper thermostat 33, the temperature of the ice greenhouse 29 depends on the temperature of the refrigerating compartment 7, but the volume of the ice greenhouse 29 is smaller than the volume of the refrigerating compartment 7. Therefore, the fine adjustment of the temperature of the ice greenhouse 29 can be easily performed by operating the damper 46.

That is, when it is desired to set the temperature inside the ice greenhouse 29 to the same high temperature as the refrigerating room 7, the operating portion 6 of the damper 46 is used.
Pick 4 and move it to the bottom. In this state, the holding portion 68 enters the lowermost recess 63 as described above,
Since the closing plate 48 is pulled down and positioned in front of the cool air discharge port 41 to close it, almost no cool air is emitted from the cool air discharge port 41. Therefore, the temperature of the ice greenhouse 29 becomes relatively high.

When it is desired to lower the temperature of the ice greenhouse 29 a little, the operating portion 64 is picked up and the damper 46 is moved to the intermediate position. In this state, as described above, the holding portion 68 enters the intermediate recess 62, the closing plate 48 is slightly pushed up, and the cold air discharge port 41 is half-opened by the opening 47, so that the amount of cool air from the cool air discharge port 41 is relatively small. In the ice greenhouse 29
Will be discharged inside. Therefore, the temperature of the ice greenhouse 29 becomes a little lower.

When it is desired to further lower the temperature of the ice greenhouse 29, the operating portion 64 is pinched to move the damper 46 to the uppermost position. In this state, the holding portion 68 enters the uppermost concave portion 61 as described above, the closing plate 48 is pushed up to the uppermost portion, and the cold air discharge port 41 is fully opened by the opening 47.
A large amount of cool air is discharged from the cool air discharge port 41 into the ice greenhouse 29. Therefore, the temperature of the ice greenhouse 29 is relatively low.

In the embodiment, the cold air discharge port 41 is opened and closed by the damper 46, but the cold air flow path leading to the cold air discharge port 41 may be opened and closed. Further, although the damper 46 is configured to be manually moved, the present invention is not limited to this, and the present invention is effective if the operating unit is driven by a solenoid or a motor.

[0027]

As described in detail above, according to the present invention, a damper for adjusting the amount of cool air discharged from the cool air discharge port is integrally provided with an elastic holding piece part, an opening / closing part, and an operating part. Therefore, it is possible to consolidate what was conventionally composed of a large number of parts into one part, and thereby the number of parts can be significantly reduced. Therefore, the cost can be reduced, the assembling workability can be improved, and the occurrence rate of malfunctions due to a failure can be significantly reduced. Moreover, since the holding portion can be held and stopped stepwise by the elastic holding piece portion, the opening / closing portion can be easily positioned.

[Brief description of drawings]

FIG. 1 is an enlarged vertical side view of a cold air discharge port portion of an ice greenhouse of a refrigerator according to the present invention.

FIG. 2 is a front view of the refrigerator of the present invention excluding a door.

FIG. 3 is a schematic vertical sectional side view of the refrigerator of the present invention.

FIG. 4 is a perspective view of a damper cover and a damper.

FIG. 5 is a rear view of the damper.

FIG. 6 is a rear perspective view of a part of the damper cover and the damper.

[Explanation of symbols]

 1 Refrigerator 6 Freezer 7 Refrigerator 13 Cooler 18 Blower 29 Ice Greenhouse 37 Damper Cover 41 Cold Air Discharge Port 46 Damper 49 Opening / Closing 54 Elastic Clamping Piece 56 Elastic Clamping Piece 64 Operating Part 68 Holding Section

Claims (1)

[Claims] 1. A refrigerator that discharges and cools cool air from the cool air discharge port into a refrigerator, comprising: a damper that adjusts the amount of cool air discharged from the cool air discharge port; and a holding portion with which the damper is movably engaged. The damper includes an elastic holding piece portion that holds the holding portion and presses the holding portion slidably and keeps the damper stationary, and the cool air discharge port or the cool air discharge port. A refrigerator characterized in that an opening / closing part for opening / closing a cold air flow path and an operating part for moving the damper are integrally formed.