KR20180081018A - Steam exhausting device and electric rice cooker including the same - Google Patents

Abstract

The present invention provides a steam discharging device capable of preventing burn injuries due to steam and an electric rice cooker including the same. The electric rice cooker includes a main body including a steam discharging port and a steam discharging device arranged at the steam discharging port, wherein the steam discharging device comprises: an external plate including an external plate door which can be opened and closed; an internal plate including an internal plate door which can be opened and closed, separated from the external plate, and arranged to be closer to the steam discharging port than the external plate; and a cooling portion contacting to the external plate.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steam exhausting apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a steam exhausting apparatus and an electromagnetic cooker including the same.

An electric rice cooker is widely used for cooking.

The rice cooker can house rice and water, and cook rice by heating the inside using electricity. In the process of cooking rice, water evaporates and steam is generated, and the generated steam is discharged to the outside.

In the case of a pressure cooker, it is necessary to maintain the pressure inside the cooker to a certain level or higher during the cooking process. Therefore, the steam generated in the cooking process is not immediately discharged as soon as it is produced, but is released to the outside only when the internal pressure is higher than a certain level. The vapor thus released may be in a state of high temperature and high pressure.

High temperature and high pressure steam emitted from an electric rice cooker may cause injury to people. People who get high temperature and high pressure steam on their skin can get burned, and people who get high temperature and high pressure steam in their eyes may be blinded. Infants and toddlers may be at higher risk of injury from high-temperature and high-pressure vapors emitted from rice cookers.

SUMMARY OF THE INVENTION [0006] The present invention provides a steam discharging device and an electromagnetic cooker including the steam discharging device.

Another problem to be solved by the present invention is to provide a steam discharging device capable of preventing injury due to steam and a method of controlling an electromagnetic cooker including the same.

According to an aspect of the present invention, there is provided a steam discharging apparatus including: an outer shell including an outer shell door that opens and closes a steam passing through the outer shell; An inner plate that is configured to allow the steam to flow into one side and includes an inner plate door that can be opened and closed, and is spaced apart from the outer plate; A cooling unit contacting the outside sheathing; And an upper cap connected to the outer plate, the inner plate, and the cooling portion, wherein the upper cap includes a control portion for controlling opening and closing of the outer and inner plate doors and for controlling the operation of the cooling portion, A second temperature sensor for sensing the temperature of the inner plate and transmitting the temperature to the control unit, and a second temperature sensor for sensing a pressure applied to the inner plate. The first temperature sensor senses the temperature of the outer plate, Wherein the control unit controls the pressure of the inner plate detected by the pressure sensor to be 0.9atm or more and 1.1atm or less and the temperature of the inner plate sensed by the second temperature sensor 35 ° C or less, closing the inner plate door, opening the outer plate door, and controlling the cooling section to stop, The inner panel is opened when the pressure on the inner plate sensed by the pressure sensor is not more than 0.9atm and 1.1atm or less and the temperature of the inner plate sensed by the second temperature sensor is not lower than 35 ° C, Closing the outside plate door, and controlling the cooling section to operate.

The controller may control to open the inner panel door and the outer panel door when an abnormality of the pressure sensor, the first temperature sensor or the second temperature sensor is detected.

According to another aspect of the present invention, there is provided a steam discharging apparatus including: an outer shell including an outer shell door that opens and closes a steam passing through the outer shell; An inner plate that is configured to allow the steam to flow into one side and includes an inner plate door that can be opened and closed, and is spaced apart from the outer plate; A cooling unit contacting the outside sheathing; And an upper cap connected to the outer plate, the inner plate, and the cooling portion, wherein the upper cap includes a control portion for controlling opening and closing of the outer and inner plate doors and for controlling the operation of the cooling portion, A second temperature sensor for sensing the temperature of the inner plate and transmitting the temperature to the control unit, and a second temperature sensor for sensing a pressure applied to the inner plate. The first temperature sensor senses the temperature of the outer plate, Wherein the control unit opens the outside plate door when the temperature of the outside plate detected by the first temperature sensor is 25 DEG C or less and closes the inside plate door, When the temperature of the outer shell detected by the first temperature sensor is not lower than 25 DEG C, The inner plate door is opened, the outer plate door is closed, and the cooling section is controlled to be operated.

According to another aspect of the present invention, there is provided a steam discharging apparatus including: an outer shell including an outer shell door capable of opening and closing a steam passing through the outer shell; An inner plate that is configured to allow the steam to flow into one side and includes an inner plate door that can be opened and closed, and is spaced apart from the outer plate; A cooling unit contacting the outside sheathing; And an upper cap connected to the outer plate, the inner plate, and the cooling unit, wherein the upper cap controls opening and closing of the inner plate door and the outer plate door according to at least one of pressure and temperature, and controls the operation of the cooling unit Wherein the outside sheathing is disposed inside the cooling portion, the cooling portion includes an open region, and the open region is disposed so as to overlap the outside sheathing door.

Wherein the outside sheathing includes a first door plate covering the outside sheathing door, an upper supporting portion supporting the upper side of the first door sheathing, a lower supporting portion supporting the lower side of the first door sheathing, And the upper support portion and the lower support portion may guide the first door plate to move.

The discharging device may further include a lower cap connected to the inner plate and the outer sheath.

According to another aspect of the present invention, there is provided an electromagnetic rice cooker including a main body including a steam outlet and a steam discharge device disposed on the steam discharge port, wherein the steam discharge device includes an openable / An inner plate including an inner plate door which can be opened and closed, a cooling plate which is spaced apart from the outer plate, which is disposed closer to the steam outlet than the outer plate, and a cooling portion which contacts the outer plate.

The details of other embodiments are included in the detailed description and drawings.

The embodiments of the present invention have at least the following effects.

That is, it is possible to provide a steam discharging device capable of preventing injury due to steam and an electric rice cooker including the same.

Also, it is possible to provide a steam discharging device capable of preventing injury due to steam and a control method of an electromagnetic cooker including the same.

The effects according to the present invention are not limited by the contents exemplified above, and more various effects are included in the specification.

1 is an exploded perspective view of an electromagnetic cooker according to an embodiment of the present invention.
2 is a perspective view of a connection part according to an embodiment of the present invention.
3 is a cross-sectional view taken along line III-III 'in FIG.
FIG. 4 is an exploded perspective view of a steam discharging apparatus according to an embodiment of the present invention. FIG.
5 and 6 are plan views of the outer door according to an embodiment of the present invention, as viewed from inside the shell plate.
7 is a flowchart illustrating a method of controlling an electromagnetic cooker according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

It will be understood that when an element or layer is referred to as being "on" of another element or layer, it encompasses the case where it is directly on or intervening another element or intervening layers or other elements. Like reference numerals refer to like elements throughout the specification.

Although the first, second, etc. are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are used only to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may be the second component within the technical scope of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 is an exploded perspective view of an electromagnetic cooker according to an embodiment of the present invention.

Referring to FIG. 1, the rice cooker may include a main body 100, a support 200, a connection part 300, and a steam discharging device 400.

The main body 100 may include a space therein. Materials for cooking can be stored in the space inside the main body 100. The ingredients for cooking may be rice and water or other materials. The main body 100 can heat the materials housed in the inner space. Alternatively, the main body can maintain the temperature of the internal space at a constant level.

The main body 100 may include an operation unit 110. [ The operation unit 110 may be a touch screen type, may be a combination of a button and a display device, or may be formed of only a button. The main body can receive a command from a user through a touch screen, a button, or the like. The main body 100 can be driven according to an instruction input through the operation unit 110. [ The command input through the operation unit 110 may be various kinds of commands such as the execution of cooking, the stop of cooking, the execution of warming, the stop of warming, the type of material to be cooked, or the selection of the cooking time. The main body 100 can perform commands by controlling the temperature of the internal space, the heating period, and the internal pressure according to a command input through the operation unit 110. [

The main body 100 may further include a steam outlet 120. The steam generated by heating the inner space of the main body 100 can be discharged to the steam outlet 120. The steam discharged to the steam outlet 120 may be discharged to the outside of the rice cooker through the steam discharging device 400. The steam outlet 120 can be controlled to discharge the steam only when the pressure in the internal space of the main body 100 is equal to or higher than a certain level.

The support part 200 may be formed around the steam outlet 120 to support and guide the steam outlet device 400. The support portion 200 may include a bottom portion 210 attached to the body and a side wall portion surrounding the bottom portion 210. The bottom portion 210 may be formed with an opening for forming the steam outlet 120. According to an embodiment of the present invention, the bottom portion 210 may be formed of a metal material. The side wall part of the support part 200 supports and guides the steam discharging device 400. According to some embodiments, the sidewall portion and the steam exhaust device 400 may be in close contact.

The connection portion 300 is disposed between the support portion 200 and the steam discharge device 400 and couples the connection portion 300 and the steam discharge device 400 to each other. The connection portion 300 may be disposed inside the side wall portion of the support portion 200 and may contact the bottom portion 210.

2 is a perspective view of a connection part according to an embodiment of the present invention. 3 is a cross-sectional view taken along line III-III 'in FIG. The connecting portion 300 will be described in more detail with reference to FIGS. 2 and 3. FIG.

The connection portion 300 may be formed in an annular shape. According to some embodiments, the connection portion 300 is not necessarily formed in an annular shape, but may be formed by forming an opening through which the steam outlet 120 can be disposed.

The connection portion 300 may include a magnet 330 and an outer portion 320 surrounding the magnet 330.

The magnet 330 may generate attraction by a magnetic force between the magnet 330 and the bottom portion 210 formed of a metal to couple the connection portion 300 and the support portion 200 together. The magnet 330 may generate attraction by a magnetic force between the magnet 330 and the lower cap 450 of the steam discharging device 400 formed of a metal so as to couple the connecting portion 300 and the steam discharging device 400. Through this operation, the connection part 300 including the magnet 330 can couple the supporting part 200 and the steam discharging device 400 together. The magnetic force of the magnet 330 can be transmitted to the support 200 and the steam discharging device 400 under the pressure of the steam because the steam discharged through the steam discharging device 400 or disposed inside the steam discharging device 400 may be in a high- (Not shown). For example, the magnetic force of the magnet 330 may be strong enough to maintain the coupling between the support part 200 and the steam discharging device 400 even when the pressure of the steam inside the steam discharging device 400 is 3G. According to some embodiments, the magnet 330 may be an electromagnet. If the magnet 330 is an electromagnet, the connection 300 may further include an electrode 310 for supplying current to the electromagnet. The electrode 310 may receive current from the electrode 210 paired with the electrode 210 disposed on the bottom portion 210 or the side wall portion of the support portion 200. When the supply of the current to the electrode 310 is stopped, the magnetic force of the electromagnet disappears, and the supporting part 200 and the steam discharging device 400 can be separated from the connecting part 300.

The outer frame 320 may be formed of an elastic material. The elastic material that can form the outer frame 320 may be a material of various materials such as silicone or synthetic resin. The connection part 300 may be in close contact with the side wall part and the bottom part 210 of the supporting part 200 and may be in close contact with the steam discharging device 400. [ When the connection part 300 is in close contact with the side wall part of the supporting part 200 and the bottom part 210 and the steam discharging device 400, the supporting part 200, the connecting part 300 or the connecting part 300 and the steam discharging device 400, It is possible to prevent the steam from escaping into the gap between the steam generator and the steam generator. Therefore, it is possible to prevent the high-temperature and high-pressure steam from being discharged to the outside, thereby reducing the risk of safety accidents due to the steam.

Referring to FIG. 1, the steam discharging device 400 is disposed on the bottom portion 210 of the support portion 200 and the connection portion 300. The steam discharging device 400 may be coupled to the bottom portion 210 of the support 200 through the connection portion 300. The steam discharging device 400 may be guided and supported by the side wall portion of the support portion 200.

FIG. 4 is an exploded perspective view of a steam discharging apparatus according to an embodiment of the present invention. FIG. The steam discharging apparatus of the present invention will be described in more detail with reference to FIG.

The steam discharging apparatus 400 may include an upper cap 410, a cooling unit 420, an outer plate 430, an inner plate 440 and a lower cap 450.

The upper cap 410 is coupled to the cooling part 420, the outer sheath 430 and the inner sheath 440. The upper cap 410 may include a control unit and a power supply unit, though not shown. The control unit can control the opening and closing of the outside plate door 431 and the inside plate door 441, which will be described later. The power supply unit can supply power necessary for controlling the opening and closing of the outside plate door 431 and the inside plate door 441. [ According to some embodiments, the power source portion may be formed by mounting the battery on the upper cap 410. [

The cooling part 420 may be disposed in close contact with the outer sheath 430 outside the outer sheath 430. The cooling part 420 may be in close contact with the outer sheath 430 to cool the outer sheath 430. The cooling part 420 can cool the inside of the outside sheathing by cooling the outside sheathing 430. The cooling part 420 may include a refrigerant to cool the sheathing 430. The refrigerant may be one of the refrigerants widely known to those skilled in the art, such as water or freon gas. The operation of the cooling unit 420 can be controlled by the control unit.

The cooling section 420 may include an open area 421. [ The open area 421 may be formed to overlap with the outside door 431 to be described later.

The outer plate 430 may be formed in close contact with the cooling part 420 on the inner side of the cooling part 420. The outer plate 430 includes an outer plate door 431. The outside door 431 can be opened and closed, and it is possible to control whether the steam is discharged or not.

5 and 6 are plan views of the outside door according to an embodiment of the present invention, as viewed from the inside of the outside sheathing. The outer door will be described in detail with reference to Figs. 5 and 6. Fig.

The outer plate 430 includes a first door plate 432 capable of covering the outer plate door 431, an upper support portion 433 for supporting the upper side of the first door plate 432, And a first signal line 435 for opening and closing the door.

The first door plate 432 can be guided and moved by the upper support 433 and the lower support 434. 5, the first door plate 432 can be moved to cover the outer plate door 431 and can be moved to open the outer plate door 431 as shown in FIG. The upper support 433 or the lower support 434 may include a roller to control the opening and closing of the first door plate 432 by driving the roller according to a signal applied through the first signal line 435.

5 and 6 are merely examples for controlling the opening and closing of the outside plate door 431, and the outside plate door 431 can be opened and closed by various methods known to those skilled in the art. For example, the first door plate may be closed in the form of a revolving door. As another example, the relative position between the outside sheathing 430 and the cooling part 420 is rotated, and the outside sheathing door 431 is covered or opened by the cooling part 420 to open and close the outside sheathing door 431 May be controlled.

Although not shown, the shell 430 may further include a first temperature sensor. The first temperature sensor senses the temperature of the outer plate 430 and can transmit the sensed temperature to the controller.

The inner plate 440 is disposed on the inner side of the outer plate 430 so as to be spaced apart from the outer plate 430. The inner plate 440 includes the inner plate door 441 and can control the discharge of the steam discharged from the steam outlet 120 to the outside plate 430 side through the inner plate door 441. The method of opening and closing the inner panel door 441 may be substantially the same as the method of opening and closing the outer panel door 431 described with reference to Figs.

Although not shown, the inner plate 440 may further include a second temperature sensor. The second temperature sensor senses the temperature of the inner plate 440 and can transmit the sensed temperature to the controller.

Although not shown, the inner plate 440 may further include a pressure sensor. The pressure sensor senses the pressure applied from the inside to the outside of the inner plate 440 and can transmit the sensed pressure to the control unit.

The lower cap 450 is disposed below the cooling unit 420, the outer plate 430 and the inner plate 440 and is coupled to the cooling unit 420, the outer plate 430 and the inner plate 440. The lower cap 450 may include a material capable of generating attraction with respect to a magnetic force such as a metal, so that the coupling portion 300 and the vapor discharging device 400 may be combined. The lower cap 450 may include an open area so that the steam discharged from the steam outlet 120 or the steam outlet 120 may be introduced into the steam discharge apparatus 400.

7 is a flowchart illustrating a method of controlling an electromagnetic cooker according to an embodiment of the present invention.

The method of controlling the rice cooker may include supplying power (S1) to the steam discharging device (400).

The electric rice cooker control method may include determining whether the pressure sensing device or the temperature sensing device is abnormal (S2). Here, the pressure sensing device is a pressure sensor included in the inner plate 440, and the temperature sensing device is a first temperature sensor included in the outer plate 430 and a second temperature sensor included in the inner plate 440.

The electric rice cooker control method includes a step S3 of opening the outside door and opening the inside door if the pressure sensing device or the temperature sensing device is abnormal. If there is an abnormality in the pressure sensing device or the temperature sensing device, the pressure inside the steam discharging device 440 may abnormally increase due to malfunction of the steam discharging device 440, so that the rice cooker may explode. Therefore, .

The electric rice cooker control method may include determining whether the inner plate pressure and the inner plate temperature fall within a predetermined range (S4). The fact that the pressure of the inner plate 440 corresponds to a certain range means that the pressure of the inner plate 440 is not less than a and not more than b. According to some embodiments, a may be 1.1atm b 0.9atm. The fact that the temperature of the inner plate 440 corresponds to a certain range means that the temperature of the inner plate 440 is not more than c. According to some embodiments, c may be 35 < 0 > C.

The electric rice cooker control method may include closing the inner plate door, opening the outer plate door, and stopping the cooling section (S5) when the inner plate pressure and the inner plate temperature fall within a predetermined range. The steam between the outer plate 430 and the inner plate 440 can be discharged to the outside of the steam discharging device 400 through the step S5. However, the steam inside the inner plate 440 can no longer be discharged to the outside. S5 to prevent the steam from being exhausted from the inside of the inner plate 440, thereby lowering the temperature and pressure inside the rice cooker.

The electromagnetic cooker control method may include opening the inner plate door, closing the outer plate door, and operating the cooling section (S6) when the inner plate pressure and the inner plate temperature do not fall within a predetermined range. The inner plate (440) pressure and the inner plate (440) If the temperature does not fall within a certain range, it may mean that there is a risk of injury to the person if the steam is discharged to the outside. The inner plate door 441 is opened and the outer plate door 431 is closed so that the steam existing inside the inner plate 440 flows into the space between the inner plate 440 and the outer plate 430 according to S6. The steam introduced between the inner plate 440 and the outer plate 430 is cooled by the cooling unit 420 being operated.

The electric rice cooker control method may include determining whether the outside shell temperature is equal to or less than d (S7). According to some embodiments, d may be 25 < 0 > C. If it is determined by the step S7 that the temperature of the outside sheathing 430 is not lower than d, S6 can be repeated. Therefore, if the temperature of the outside sheathing 430 is not lower than d, the steam between the inner sheath 440 and the outside sheathing 430 can not be discharged to the outside and is continuously cooled.

The electromagnetic rice cooker control method may include opening the outside plate door, closing the inside plate door, and stopping the cooling section when the outside plate temperature is d or less (S8). When the temperature of the outside sheathing 430 is less than or equal to d, it can be judged that the temperature of the outside heat is also low enough not to injure a person even if the outside temperature is discharged to the outside. . Through this process, the discharged steam is sufficiently cooled and discharged, so that the risk of burn due to steam can be prevented. After performing S8, you can go back to S2.

Performing S1 through S8 may be accomplished through a control portion disposed within the top cap 410. [

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

100: main body 110:
120: steam outlet 200: support
210: bottom part 300: connection part
310: electrode 320:
330: magnet 400: steam discharging device
410: upper cap 420: cooling section
421: Open area 430: Outer panel
431: outside door 432: first door plate
433: upper support portion 434: lower support portion
435: first signal line 440: inner plate
441: inner plate door 450: bottom cap

Claims (6)

1. A steam discharging device for discharging steam through a steam discharging device,
A shell plate including an openable and closable outer shell door;
An inner plate that is configured to allow the steam to flow into one side and includes an inner plate door that can be opened and closed, and is spaced apart from the outer plate;
A cooling unit contacting the outside sheathing; And
And an upper cap connected to the outer shell, the inner shell, and the cooling portion,
Wherein the upper cap includes a control unit for controlling opening and closing of the outside plate door and the inside plate door and for controlling the operation of the cooling unit,
And a second temperature sensor for sensing the temperature of the inner plate and transmitting the temperature to the control unit and a second temperature sensor for sensing a temperature of the inner plate, And a pressure sensor for sensing and transmitting the sensed signal to the control unit,
Wherein the control unit closes the inner panel door when the pressure on the inner plate sensed by the pressure sensor is 0.9atm or more and 1.1atm or less and the temperature of the inner plate sensed by the second temperature sensor is 35 ° C or less, Opening the door and controlling the cooling unit to stop,
Wherein the controller detects that the pressure applied to the inner plate detected by the pressure sensor is 0.9atm or more and 1.1atm or less or that the temperature of the inner plate detected by the second temperature sensor is not lower than 35 ° C, And closes the outside door, and controls the cooling unit to operate. The method according to claim 1,
Wherein the controller controls to open the inner panel door and the outer panel door when an abnormality of the pressure sensor, the first temperature sensor, or the second temperature sensor is detected. 1. A steam discharging device for discharging steam through a steam discharging device,
A shell plate including an openable and closable outer shell door;
An inner plate that is configured to allow the steam to flow into one side and includes an inner plate door that can be opened and closed, and is spaced apart from the outer plate;
A cooling unit contacting the outside sheathing; And
And an upper cap connected to the outer shell, the inner shell, and the cooling portion,
Wherein the upper cap includes a control unit for controlling opening and closing of the outside plate door and the inside plate door and for controlling the operation of the cooling unit,
And a second temperature sensor for sensing the temperature of the inner plate and transmitting the temperature to the control unit and a second temperature sensor for sensing a temperature of the inner plate, And a pressure sensor for sensing and transmitting the sensed signal to the control unit,
Wherein the control unit opens the outer panel door, closes the inner panel door, and stops the cooling unit when the temperature of the outer panel detected by the first temperature sensor is 25 DEG C or lower,
Wherein the control unit opens the inner plate door when the temperature of the shell plate detected by the first temperature sensor is not lower than 25 ° C, closes the outer plate door, and controls the cooling unit to operate. 1. A steam discharging device for discharging steam through a steam discharging device,
A shell plate including an openable and closable outer shell door;
An inner plate that is configured to allow the steam to flow into one side and includes an inner plate door that can be opened and closed, and is spaced apart from the outer plate;
A cooling unit contacting the outside sheathing; And
And an upper cap connected to the outer shell, the inner shell, and the cooling portion,
Wherein the upper cap controls the opening and closing of the inner panel door and the outer panel door according to at least one of pressure and temperature and controls the operation of the cooling section,
Wherein the outside sheathing is disposed inside the cooling portion,
Wherein the cooling section includes an open area, and the open area is disposed so as to overlap with the outside plate door. 5. The method of claim 4,
The outer plate
A first door plate covering the outside door,
An upper supporting portion for supporting an upper side of the first door plate,
A lower support portion for supporting a lower side of the first door plate,
And a first signal line for opening and closing the outside door,
And the upper support portion and the lower support portion guide the first door plate to move. 5. The method of claim 4,
Further comprising a lower cap including a metal and connected to the inner plate and the shell plate.

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