KR20100062184A - Refrigerator - Google Patents

Abstract

PURPOSE: A refrigerator is provided to prevent a slip by operating a baffle after a predetermined delay time if the baffle is rotated in a first direction and then is rotated in a second direction. CONSTITUTION: A refrigerator comprises: a damper which supplies cool air in a first room to a second room and includes a main body(520) wherein an opening is formed and a baffle(530) which is combined with the main body and is rotated to a predetermined direction; a damper driver(335) which rotates the baffle which is placed in the damper to a predetermined direction; and a controller which delays the operation of the baffle for a designated time by controlling the damper drive when the baffle is rotated in a first direction and then is rotated in a second direction which is different with the first direction.

Description

Refrigerator {Refrigerator}

The present invention relates to a refrigerator, and more particularly, to a refrigerator capable of preventing a slip phenomenon occurring when the baffle in the damper changes direction.

Generally, a refrigerator is a device used for storing food fresh for a long time, and includes a freezer compartment for freezing food, a freezer compartment for cold storage of plants, and a freezing cycle for cooling the freezer compartment and refrigerator compartment. The operation control is performed by the controller.

Unlike in the past, the refrigerator is not only a space for food, but also a family room where the family members are gathering and talking and solving the food. In addition, quantitative and qualitative functional changes are required for all family members to use easily.

Meanwhile, a damper device is used in the refrigerator to supply cold air to the freezer compartment primarily through the evaporator of the freezing cycle and to supply cold air that has passed through the freezer compartment to the refrigerating compartment. Various efforts have been made to precisely control the operation of such a damper device.

An object of the present invention is to provide a refrigerator capable of preventing the slip phenomenon occurring when the baffle in the damper changes direction.

A refrigerator according to an embodiment of the present invention for achieving the above object, a damper that operates to provide the cold air of the first chamber to the second chamber, and a damper driver for driving the baffle provided in the damper to rotate in a predetermined direction; The controller may further include a controller configured to control the damper driver to delay and operate for a predetermined time when the baffle rotates in the first direction after the baffle rotates in the first direction.

According to an embodiment of the present invention, when the baffle is rotated in a second direction different from the first direction after the rotation in the first direction, the operation is delayed for a predetermined time, thereby preventing slip phenomenon occurring when the baffle changes direction. You can do it.

Hereinafter, with reference to the drawings will be described the present invention in more detail.

1 is a perspective view illustrating a refrigerator according to an embodiment of the present invention.

Referring to the drawings, the refrigerator 1 according to the present invention, although not shown, a case 110 having an inner space divided into a freezer compartment and a refrigerating compartment, a freezer compartment 120 that shields the freezer compartment, and a refrigerating compartment. A rough appearance is formed by the refrigerating chamber door 140.

Further, the front surface of the freezing chamber door 120 and the refrigerating chamber door 140 is further provided with a door handle 121 protruding forward, so that the user can easily grip and rotate the freezing chamber door 120 and the refrigerating chamber door 140. Make it work.

On the other hand, the front of the refrigerator compartment door 140 may be further provided with a home bar 180, which is a convenient means for allowing a user to take out a storage such as a beverage contained therein without opening the refrigerator compartment door 140.

In addition, the front side of the freezer door 120 may be provided with a dispenser 160 which is a convenient means for allowing the user to easily take out ice or drinking water without opening the freezer door 120, and such a dispenser 160. An upper side of the control panel 200 may be further provided to control the driving operation of the refrigerator 1 and to show a state of the refrigerator 1 being operated on the screen.

The control panel 200 may include an input unit 220 including a plurality of buttons, and a display unit 230 for displaying a control screen and an operation state.

The display unit 230 displays information such as a control screen, an operation state, and a temperature inside the refrigerator. For example, the display unit 230 may display a service type of the dispenser (eg, ice, water, flake ice), a set temperature of the freezer compartment, and a set temperature of the refrigerator compartment.

The display unit 230 may be implemented in various ways, such as a liquid crystal display (LCD), a light emitting diode (LED), an organic light emitting diode (OLED), and the like. In addition, the display unit 230 may be implemented as a touch screen capable of performing the function of the input unit 220.

The input unit 220 may include a plurality of input buttons. For example, the input unit 220 may include a dispenser setting button (not shown) for setting a service type of the dispenser (ice ice, water, crushed ice, etc.) and a freezer temperature setting button (not shown) for setting a freezer temperature. And, it may include a refrigerator compartment temperature setting button (not shown) for setting the freezer compartment temperature. The input unit 220 may be implemented as a touch screen that can also perform the function of the display unit 230.

Meanwhile, the refrigerator according to the embodiment of the present invention is not limited to the double door type illustrated in the drawings, but the one door type, the sliding door type, and the curtain door type. Regardless of its form, such as a (Curtain Door Type), as described later, it is sufficient to provide a damper.

FIG. 2 is a view schematically illustrating the configuration of the refrigerator of FIG. 1.

Referring to the drawings, the refrigerator 1 includes a compressor 112, a condenser 116 for condensing the refrigerant compressed by the compressor 112, and a refrigerant condensed by the condenser 116 to be evaporated. An evaporator 122 disposed in a freezer compartment (not shown) and an expansion valve 132 for expanding a refrigerant supplied to the evaporator 122.

In addition, the refrigerator 1 may further include a gas-liquid separator (not shown) in which the refrigerant passing through the evaporators 122 and 124 is separated into a liquid and a gas.

In addition, the refrigerator 1 may further include a fan 142 that sucks cold air that has passed through the evaporator 122 and blows it into a refrigerating chamber (not shown) and a freezing chamber (not shown), respectively.

In addition, the compressor driving unit 113 for driving the compressor 112, and a fan driving unit 143 for driving the fan 142 may be further included.

On the other hand, although not shown in the drawing may further include a baffle for providing cold air in the freezer compartment (not shown) to the cold compartment (not shown).

3 is a block diagram schematically illustrating the inside of the refrigerator illustrated in FIG. 1.

Referring to the drawings, the refrigerator of FIG. 3 includes a controller 310, a damper 330, and a damper driver 335. In addition, the refrigerator of FIG. 3 further includes an input unit 220, a display unit 230, and a temperature sensor 320. In addition, the refrigerator of FIG. 3 further includes a compressor 112, a compressor driver 113, a fan 142, and a fan driver 143.

The compressor 112 and the fan 142 will be described with reference to FIG. 2.

The input unit 220 may include a plurality of input buttons for inputting a predetermined mode. For example, a dispenser mode input button, a freezing temperature input button, a cold storage temperature input button, a lock / unlock input button, and the like may be provided. The predetermined mode signal input from the input unit 220 is input to the controller 310 to perform a corresponding control operation.

The damper 330 operates to provide cold air of the first chamber to the second chamber, and may include a main body and a baffle coupled to the main body. Here, the first chamber may be a freezer compartment, and the second chamber may be a refrigerator compartment, but is not limited thereto, and may be used when it is necessary to specifically control the supply of cold air to each room in the freezer compartment or the refrigerator compartment.

The damper driver 335 drives the damper 330. In particular, the baffle in the daffer 330 is driven to rotate in a predetermined direction. The damper driver 335 may include an electric motor for this purpose. It is possible to use a variety of motor, but will be described below with a stepping motor (stepping motor). The damper 330 and the damper driver 335 will be described in detail later with reference to FIG. 4.

The controller 310 controls the damper driver 335 to delay and operate for a predetermined time when the baffle rotates in the second direction different from the first direction after the baffle rotates in the first direction. When the baffle changes direction, in particular, when the baffle is opened and closed, a slip phenomenon occurs. To prevent this, the controller 310 controls the damper driver 335 so that the baffle does not operate for a predetermined time.

Meanwhile, the controller 310 may control the baffle of the damper 330 to operate after the operation of the fan 142 that blows cold air into the refrigerator. In order to provide the cold air of the first chamber to the second chamber by the operation of the baffle, since the cold air must be blown into the first chamber, it is preferable to operate the baffle after the operation of the fan 142.

Meanwhile, the controller 310 directly controls the compressor driver 113 and the fan driver 143 to control the on / off operation of the compressor 112 and the fan 142, as shown in the drawing. Finally, the compressor 112 and the fan 142 may be controlled.

The compressor drive unit 113 and the fan drive unit 143 are each provided with a compressor motor (not shown) and a fan motor (not shown), and each motor (not shown) is controlled by the control unit 310. Accordingly it is operated at the target rotational speed. When such an electric motor is a three-phase electric motor, it may be controlled by a switching operation in an inverter (not shown), or may be controlled at a constant speed by using an AC power source as it is. Herein, each motor (not shown) may be any one of an induction motor, a BLDC (Blush less DC) motor, a synchronous reluctance motor (synRM) motor, and the like.

On the other hand, as described above, the controller 310 can control the overall operation of the refrigerant cycle in accordance with the set temperature from the input unit 220. For example, in addition to the compressor driver 113 and the fan driver 143, the expansion valve 132 and the condenser 116 may be further controlled.

In addition, the controller 310 may control the operation of the display unit 230.

The temperature detector 320 detects a temperature in the refrigerating compartment or the freezing compartment. Alternatively, the temperature of each room in the refrigerating compartment or the freezing compartment may be sensed. Accordingly, the temperature sensing unit 320 may be a plurality. The sensed temperature may be input to the controller 310 to be used for on / off control of the compressor 115.

4 and 5 illustrate the damper of FIG. 3.

Referring to the drawings, in order to deliver the cold air of the freezer compartment 405 to the refrigerating compartment 410, a control box 420 for classifying cold air is used, the cold air supply passage from the freezer compartment to the refrigerating compartment in the control box 420 The damper 330 is opened and closed.

In the drawing, the cold air discharge ports 430 are formed on the front and bottom surfaces of the cold air classification control box 420, respectively, and the side cold air classification control box 440 communicates with the side cold air classification control box 440 to discharge cold air to the side of the refrigerating chamber.

The damper 330 includes a main body 520 having an opening 525 and a baffle 530 which is coupled to the main body and rotates in a predetermined direction.

The damper driver 335 rotates the baffle 530 in a predetermined direction and may be implemented in a form connected to the damper 330 as shown in the drawing. The damper 330 and the damper driver 335 may be referred to as a damper assembly.

Although not shown, the damper driver 335 may include an electric motor, and may be, for example, a stepping motor.

In response to a drive signal from the damper driver 335, the baffle 530 rotates in a predetermined direction. As shown in the drawing, the freezing chamber 405 may rotate in the direction in which the cold air 510 is supplied to the refrigerating chamber 410. That is, the baffle 530 may rotate from the closed state to the open state.

6 is a view referred to explain an embodiment of the present invention, Figure 7 is a view showing an example of the signal of the damper driver.

Referring to the drawings, FIG. 6 (a) first shows that the baffle 530 coupled to the main body 520 rotates from the closed state to the open state. That is, the rotation in the first direction is shown. As a result, cold air of the freezing compartment 405 starts to be delivered to the refrigerating compartment 410.

To this end, the driving signal of the damper driver 335 may be a pulse of the high level (L1) during the first time (T1). When the damper driver 335 uses a stepping motor, the damper driver 335 rotates in the first direction for each step by the pulse signal of the high level L1.

Next, FIG. 6B shows a state where the baffle 530 is opened to the maximum. As a result, the amount of cold air transferred from the freezing chamber 405 to the refrigerating chamber 410 becomes maximum.

In this case, the driving signal of the damper driver 335 may maintain the intermediate level L2 constant for a predetermined delay time Td. As a result, the baffle 530 is stopped in the maximum open state.

Next, FIG. 6 (c) shows that the baffle 530 coupled to the main body 520 rotates from the open state to the closed state again. That is, the rotation in the second direction opposite to the first direction is shown. As a result, the amount of cold air transferred from the freezing chamber 405 to the refrigerating chamber 410 is reduced.

To this end, the driving signal of the damper driver 335 may be a pulse of the low level L3 for a second time (T2). When the damper driver 335 uses a stepping motor, the damper driver 335 rotates in the second direction for each step by the pulse signal of the low level L3.

As a result, in the embodiment of the present invention, as shown in FIG. It can be prevented. Here, the predetermined delay time Td may be set to several seconds. For example, it can be set within 5 seconds.

Embodiments of the present invention may prevent slippage phenomenon, which occurs during a change of direction, in particular, when a stopper is not disposed in the damper 330.

While the above has been shown and described with respect to preferred embodiments of the present invention, the present invention is not limited to the specific embodiments described above, it is usually in the technical field to which the invention belongs without departing from the spirit of the invention claimed in the claims. Various modifications can be made by those skilled in the art, and these modifications should not be individually understood from the technical spirit or the prospect of the present invention.

1 is a perspective view illustrating a refrigerator according to an embodiment of the present invention.

FIG. 2 is a view schematically illustrating the configuration of the refrigerator of FIG. 1.

3 is a block diagram schematically illustrating the inside of the refrigerator illustrated in FIG. 1.

4 and 5 illustrate the damper of FIG. 3.

6 is a diagram referred to describe an embodiment of the present invention.

7 is a diagram illustrating an example of a signal of a damper driver.

<Explanation of symbols on main parts of the drawings>

1 ....... Refrigerator 112 ..... Compressor

220 ..... Input 230 ..... Display

310 ..... Control part 320 ..... Temperature sensing part

330 ..... Damper 335 ..... Damper Drive

520 ..... Body 530 ..... Baffle

Claims (6)

A damper operative to provide cold air from the first chamber to the second chamber; A damper driver for driving the baffle provided in the damper to rotate in a predetermined direction; And And a controller configured to control the damper driving unit to delay and operate for a predetermined time when the baffle is rotated in a second direction different from the first direction after the baffle is rotated in the first direction. The method of claim 1, The damper is, A main body having an opening formed therein; And And a baffle coupled to the main body to rotate in the predetermined direction. The method of claim 1, It is further provided; The control unit, And controlling the damper driver to rotate the baffle of the damper after the fan is operated. The method of claim 1, The damper drive unit, A refrigerator comprising a stepping motor. The method of claim 1, And the first chamber is a freezer compartment, and the second chamber is a refrigerator compartment. The method of claim 1, The first direction is a refrigerator, characterized in that the cold air is supplied to the second chamber.

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