KR910000729Y1 - Refrigerator - Google Patents

Abstract

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Description

Refrigerator

1 is a perspective view showing a part of the specification switching chamber cut away.

2 is a longitudinal cross-sectional view of the whole.

3 is a perspective view seen from the back to show the cold air passage.

4 is a perspective view from the front to illustrate the cold air passage;

5 is a front view of the specification conversion room.

6 is a longitudinal sectional view of the first damper device.

7 is a plan view of the operating mechanism of the first damper device.

8 is a cross-sectional view of the first damper device.

* Explanation of symbols for main parts of the drawings

4: freezer 5: specification conversion room (cooling room)

6: cold storage room 9: main cooler

10: fan device 13: cold air passage

25: cooler for direct cooling 26: first damper device

40: cam part 41: rotary switch

43: operation horse (operation part) 46: cam groove

46a: 1st cam surface 46b: 2nd cam surface

49: second damper device

The present invention relates to a refrigerator configured to open and close a cold air inlet installed in a cooling chamber by a damper plate.

As a refrigerator of this type, a specification switching chamber, which is a cooling chamber independent of a conventional freezing compartment and a refrigerating chamber, is installed, and a cold air inlet formed on the wall of this specification switching chamber is opened and closed by a damper device to convert the specification switching chamber into a freezer compartment specification and a refrigerator compartment specification. It is provided to make it available.

However, in the above configuration, since the cold air inlet to the specification conversion chamber is generally installed on the rear wall of the specification conversion chamber from the viewpoint of cooling, the opening / closing operation of the damper device for specification conversion has to be operated by inserting a deep hand into the specification conversion chamber. Manipulation has been extremely cumbersome.

In particular, when food is already stored in the specification change room, it is very annoying because the food has to be taken out of the specification change room every time the conversion operation is performed.

Therefore, an object of the present invention is to provide a refrigerator which can be easily performed in front of the cooling chamber without opening and closing the damper plate installed on the rear wall of the cooling chamber every time.

The present invention provides an automatic rod that extends back and forth in contact with the damper plate, an operation member that can be moved laterally by placing the operation portion in front of the cooling chamber, and a cam support installed on the operation rod installed on the operation rod. The cam member for displacing the damper plate in the opening and closing direction by moving the above-mentioned operating rod back and forth by being displaced to the side by contacting the operating member is constructed so that the displacement of the operating member from the front of the cooling chamber to the front and rear of the operating rod by the cam surface. The damper plate in the rear of the cooling chamber is displaced in the opening and closing direction by converting it into the directional displacement.

It will be described with reference to the drawings.

As shown in FIG. 2 showing the overall configuration, two heat insulating partition walls 2 and 3 are provided inside the refrigerator main body 1 so that the freezer compartment 4, the specification changeover chamber 5, and the above are sequentially turned from above. The refrigerator compartment 6 is partitioned.

Inside the insulating partition wall (2) partitioning the freezing chamber (4) and the specification conversion chamber (5) is an open hollow state of the upper surface, and a panel (7) is covered on the open upper surface, thereby insulating insulation The cooler storage chamber 8 is formed in the wall 2.

In the cooler storage room 8, the fan apparatus 10 is provided in the main cooler 9 and behind it.

The fan apparatus 10 includes a fan motor 11 and a fan 12 driven by the fan motor 11, and cool air generated by the main cooler 9 is a cold air passage behind the cooler storage chamber 8. Blow on (13).

The cold air passage 13 has a second duct extending from the rear of the fan apparatus 10 to the rear upper portion of the specification switching chamber 5 along the rear wall 1a of the refrigerator main body 1 as shown in FIG. 15 and a flat box-like third duct 16 that extends from the rear of the fan apparatus 10 to the upper rear side of the freezing chamber 4 along the rear wall 1a.

The passage cross-sectional area of each of the ducts 14, 15 and 16 is set such that the third duct 16 is maximum, the second duct 15 is minimum, and the first duct 14 is in the middle thereof. It is.

In addition, a first cold air inlet 17 and a second cold air inlet 18 connected to the first duct 14 and the second duct 15 are formed on the rear wall 5a of the specification change room 5 so that the specification change room ( 5) It communicates with the cold air passage 13 inside.

In addition, in the rear wall 4a of the freezing chamber 4, a cold air inlet 19 for the freezing chamber which is connected to the third duct 16 is formed over approximately the entire width of the rear wall 4a, so that the rear wall 6a of the refrigerating chamber 6 is formed. ) Is formed in the cold air inlet 20 for the refrigerating chamber connected to the lower end of the second duct (15).

The cold air supplied from the cold air passage 13 into the specification conversion chamber 5 through the first cold air inlet 17 or the second cold air inlet 18 cools down the internal food and then the lower end of the adiabatic partition wall 2. It returns to the cooler storage chamber 8 through the cold air | flow reflux opening 21 formed in this.

The cold air supplied from the cold passage 13 through the third duct 16 into the freezer compartment 4 exits from the cold air inlet 19 for the freezer compartment and then into the freezer compartment 4 through the grill 22. After flowing in and cooling the food inside, it returns to the cooler storage chamber 8 through the cold air reflux opening 23 provided in the front end of the panel 7. As shown in FIG.

On the other hand, the cold air supplied from the second duct 13 into the refrigerating chamber 6 through the refrigerating chamber cold air inlet 20 is cooled from the inside of the front end of the insulating partition wall 3 after cooling the food therein. Through the inside of the right end wall 1b of 1), it returns to the cooler storage chamber 8 through the cold reflux duct 24 formed over the inside of the front end of the heat insulating partition wall 2.

Moreover, in the upper part of the refrigerating chamber 4, the flat direct cooling cooler 25 located below the grille 22 is provided in the shelf shape.

As shown in FIG. 1, a first damper device 26 is provided at the first cold air inlet 17 located at the rear wall 5a of the specification changeover chamber 5. As shown in FIG.

The first damper device 26 has a conical shape in which the damper plate 28 is pivotally connected to one surface of the angle cylinder 27 as shown in FIG. A tension spring (29) is installed between the hook (27a) protruding from the barrel and the angle barrel (27) to force the damper plate (28) in the closing direction at all times.

In addition, the sealing material 30 is adhered to the outer surface of the damper plate 28 to increase the sealing property when the damper plate 28 is closed, and is frozen on the outer circumference of the angled cylinder 27. The damper heater 31 for prevention is fixed in the state wound.

The damper plate 28 of the first damper device 26 is provided so that the actuating lever 32 protrudes upward and integrally upward, and pushes the upper portion of the actuating lever 32 to the rear to damp the damper plate 28. ) Can be rotated openly.

In FIG. 7, 33 denotes an operation mechanism for pushing the operating lever 32 to open the first damper device 26, which will be described below.

"34" is the operating cover, "35" is the support plate, and "36" is the operating rod.

On the upper surface of the support play 35, a pair of guide protrusions 37 protrude from the front and rear at intervals, and a pair of long holes 38 extending back and forth are formed in the operating rod 36.

The operating rod 36 is supported by the long hole 38 to be guided by the guide protrusion 37 so as to be movable back and forth on the support plate 35.

The rear end of the actuating rod 36 is movably supported back and forth on the B-shaped push 39 extending to the right.

At the rear end of the actuating rod 36, a B-shaped pusher 39 extending to the right is fixed, and a pusher horseshoe 39a is attached to the tip of the pusher 39 so as to be attached and lifted. .

In addition, at the front end of the actuating rod 36, the engaging projection 40 protruding upward is formed.

On the other hand, the rotary switch 41 is fixed to the substantially center upper surface of the operation cover 34 with the operation shaft 41a facing downward.

The shaft hole 42 formed in the substantially center of the cam plate 42 is fitted in the operation shaft 41A, and the cam plate 42 and the operation shaft 41A are rotated integrally.

The front end of the cam plate 42 is integrally formed with the operation piece 43 protruding downward through the slit 44 formed in the operation cover 34, the handle at the lower end of the operation piece 43 (45) is stuck.

Since the operation piece 43 of the cam plate 42 can elastically deform back and forth, it is always in elastic contact with the front end of the slit 44, and this operation piece 43 further extends the cam plate 42 to a predetermined rotational position. In order to make it possible, the front end of the slit 44 is provided with the recessed parts 44a, 44b, 44c which engage in three places of both right and left, and center.

On the other hand, a cam groove 46 is formed behind the cam plate 42 in a substantially arc shape to engage the protrusion 40 which engages the working rod 36.

The cam groove 46 is formed in the first cam surface 46a formed along the arc of a predetermined radius from the shaft hole 42a, and the arc from the shaft hole 42a is larger than the first cam surface 46a. Therefore, it is comprised by making the 2nd cam surface 46a formed continuously.

Then, the support plate 35 to which the actuating rod 36 is attached and the operation cover 34 to which the rotary switch 41 and the cam plate 42 are attached are integrated by screws 47. It is fixed to the ceiling of the switching chamber 5.

In this fixed state, the pushing horseshoe 39a provided in the pushing place 39 of the operating rod 36 is in contact with the upper end of the operating lever 32 of the first damper device 26.

Next, in FIG. 1, "49" is a second damper device provided in the second cold air inlet 18 of the specification switching chamber 5, which will be described below.

This is provided with the damper plate which is not shown in the case 50, and the passage amount of cold air from the 2nd cold air inlet 18 is adjusted by the opening degree change of the damper plate.

The damper plate has a well-known configuration in which the opening degree is changed by the stretching operation of bellows (not shown) in which gas is enclosed. It is not leaking.

The tip of the heat transfer tube 51 is located in the specification conversion chamber 5 so as to detect the air temperature of the specification conversion chamber 5, and when the sensing temperature of the heat transfer tube 51 is higher than the operating temperature, the bellows are extended to damper. By displacing the plate in the open direction, the cold air flows into the specification conversion chamber 5 from the second cold air inlet 18, and when the temperature is lower than the operating temperature, the damper plate is displaced in the closing direction to suppress or block the inflow of cold air.

The operating temperature of the second damper device 49 is set in advance so that the temperature in the specification switching chamber 5 is maintained at, for example, about 3 ° C to 4 ° C, that is, the specification of the refrigerating chamber in the specification switching chamber 5.

In addition, this operating temperature can be changed within a predetermined temperature range by rotating the temperature adjusting knob 52 provided on the front surface of the case 50 of the second damper device 49.

In addition, although not shown in the heat transfer tube 51, a heat transfer tube heater in which a conduction path is short-circuited by the rotary switch 41 which operates when the knob 49 is set to a "chilled" position is attached. (Iii), the thermal tube 51 can be forcibly heated by allowing the thermal tube heater to conduct electricity.

In addition, "54" is a cover attached to the rear wall 5a of the specification change room 5 so as to cover the seventh damper device 26 and the second damper device 49, and both damper devices 26 and 49 are included therein. A plurality of slits 55 are formed on both the upper and lower sides for passing cold air from the upper side.

“55” is a partition plate attached by engaging the fastener 55a to the fastening nail 35a installed on the lower surface of the support plate 35, which is located in the upper half of the center of the specification conversion room 5, Two pairs of saucer 56 extends back and forth on both sides.

And as shown in FIG. 5, the support plates 57 are also installed on the left and right inner walls of the specification conversion room 5 so as to extend forward and outward, and the food storage plates 58 are provided between the support plates 56 and 57. Is mounted to slide back and forth.

In addition, "59" is a refrigerating chamber damper device installed in the refrigerating chamber cold air inlet 20 of the refrigerating chamber 6, which is substantially the same structure as the second damper device 49, and is detected by a heat pipe not shown. The amount of cold air flowing into the refrigerating compartment 6 from the refrigerating compartment cold air inlet 20 is adjusted by changing the opening degree of the damper plate according to the temperature in (6).

Next, the switching operation of the specification switching room 5 will be described in the present embodiment.

First, in the case of the specification of the freezer compartment, the knob 45 located on the front surface of the operation cover 34 is moved to the "freezing" display position.

Thus, the cam plate 42 is rotated in the direction of arrow A from the state shown in FIG. 7, and the engaging protrusion 40 of the operating rod 36 is engaged with the second cam surface 46b of the cam groove 46. By pushing backward, the operating rod 36 is moved backward.

This causes the damper 39 of the actuating rod 36 to push the actuating lever 32 of the damper plate 28 of the first damper device 26 against the repulsive force of the tension spring 29 to press the damper. The board 28 is left open.

As a result, a large amount of cold air flows continuously from the first duct 14 having a relatively large flow path area into the specification switching chamber 5, so that the specification switching chamber 5 is maintained at about the same low temperature as the freezing chamber 4. .

In the case of a refrigerator compartment specification, the knob 45 is moved to the "refrigerated" display position.

As a result, the engaging protrusion 40 of the operating rod 36 is located on the right side of the cam groove 46 of the cam plate 42 so that the first cam surface having a short radial distance from the operating shaft 41a of the rotary switch 41 ( 46a), the damper plate 28 of the first damper device 26 is pulled by the tension spring 29 to force the operation lever 36 to return to the front.

In this way, when the first damper device 26 is short-circuited, the cold air of the cold air passage 13 is not supplied from the first cold air inlet 17 having a relatively large flow path cross section, and the cross-sectional area where the second damper device 49 is installed is provided. It is supplied through the second duct 5 which is the minimum.

In addition, since the operating temperature of the second damper device 49 is set to maintain the same temperature as the refrigerating chamber 6 in the specification switching chamber 5, when the inside of the specification switching chamber 5 rises above the temperature in the refrigerating chamber 6, the damper plate. When the cold air is cooled to below the temperature in the refrigerating chamber 6 by displacing it in the open direction, the damper plate is displaced in the closing direction to suppress or block the inflow of cold air.

As a result, the inside of the specification switching chamber 5 becomes the refrigerator compartment specification.

In the case of a chilled seal specification, the knob 45 is moved to the "chilled" display position.

In accordance with this operation, the cam plate 42 is rotated. As shown in FIG. 7, the engaging protrusion 40 of the operating rod 36 is positioned approximately in the center of the cam groove 46 and is in contact with the first cam surface 46a. Since the operating rod 36 does not move because the state is maintained, the first damper device 26 maintains the closed state.

However, since the rotary switch 41 is converted by the rotation of the cam plate 42, the heat transfer tube 51 of the second damper device 49 is electrically operated, and the heat transfer tube 51 is forcibly heated.

As a result, the inside of the specification switching chamber 5 is lower than the temperature of the refrigerating chamber specification, and the heat sensing tube 51 senses a high temperature by the heat from the heat sensing tube heater, so that the damper plate of the second damper device 49 is the refrigerating chamber specification. Even more open than it is, more cold air is introduced into the specification changeover chamber 5.

That is, the second damper device 49 substantially lowers the operating temperature. As a result, the inside of the specification switching chamber 5 is maintained at about -2 ° C to 2 ° C, which is lower than the refrigeration room specification, and thus becomes the chilled room specification.

Thus, according to this embodiment, the damper plate 28 of the first damper device 26 is installed in front of the specification change room 5 for converting the specification change room 5 into a freezer compartment specification and a refrigerating compartment specification or a chilled seal specification. By moving the handle 45 of one cam plate 42 to the side, it can be displaced in the opening and closing direction.

Therefore, in the present embodiment, the specification switching operation can be performed from the front of the specification switching chamber 5 in the present embodiment, which requires a deep hand into the specification switching chamber when changing the specifications in the related art.

Moreover, especially in this embodiment, when the rotary switch 41 which operates according to the rotational displacement of the cam plate 42 is moved, and the handle 45 is moved from the "cold" position to the "child" position, the 1st damper apparatus Operating temperature of the second damper device 49 by passing through the heat transfer tube heater that heats the heat transfer tube 51 of the second damper device 49 while keeping the damper plate 28 of (26) in the closed position. Since the specification change chamber 5 can be changed between the refrigerating compartment specification and the chilled seal specification, it can be completed by a simple operation in front of the specification change chamber 5.

On the other hand, in the past, switching with a small temperature difference, such as switching between the refrigerating chamber specification and the chilled seal specification, was performed by rotating the temperature adjusting knob 52 of the first damper device 26. It was very inconvenient to use because I had to put my hand.

However, the present invention is not necessarily limited to this, and the switch for open-circuiting the heat pipe heater may be installed so as to operate separately from the rotation of the cam plate 42. It is not limited to three specifications, For example, you may switch between two specifications of a freezer compartment and a refrigerator compartment.

As described above, the displacement of the operation member by the operation of the operation unit installed to be located in front of the cooling chamber is shifted back and forth by the cam surface so that the damper plate is changed in the opening and closing direction as described above. Even in the configuration in which the damper plate is installed behind the cooling chamber, the opening and closing operation can be performed from the front without putting a hand in the cooling chamber, and thus the excellent effect of greatly improving the efficiency of operation can be obtained.

Claims (1)

Having a specification switching room of a freezer compartment and a refrigerating compartment, the specification switching room is configured to open and close the first cold air inlet, the first damper device to open and close the first cold air inlet, and the second cold air inlet. A second damper device which is converted by the temperature detected by the heating unit installed in the control unit, an operating rod that moves back and forth in contact with the second damper device, and is installed to be movable in front of the specification switching chamber, and the specification is changed by the movement. It consists of a control member for changing the set temperature of the room, a switch on and off by the displacement of the operating rod moving in conjunction with the operation of the operation member, and a heater for heating the heat-sensitive portion when the switch is turned on And the second damper device is controlled to open and close in a state where the thermal part is heated by a heater.