KR20090060002A

KR20090060002A - Electric rice cooker having electirc opening lid and lid opening control method thereof

Info

Publication number: KR20090060002A
Application number: KR1020070127126A
Authority: KR
Inventors: 임상관; 홍웅기
Original assignee: 웅진쿠첸 주식회사
Priority date: 2007-12-07
Filing date: 2007-12-07
Publication date: 2009-06-11

Abstract

An electric pressure rice cooker having an electric lid and method for controlling the opening of the lid are provided to prevent the accident caused by the opening of the lid since the lid is not quickly opened. An electric pressure rice cooker comprises a main body and lid(20). An inner pot is equipped in the main body. The lid is installed at the upper side of main body. The lid is opened and closed upward and downward at the center of connection axis. An electric pressure rice cooker having electric opening lid comprises a driving device, circular saw, power transmission device, one or more sensors(40), and controller. The driving device is installed at the main body. The circular saw is placed on connection axis or the extended line of connection axis. A power transmission device delivers power of the driving device to the circular saw. The sensor senses the opened state or closed state of the lid.

Description

Electric Rice Cooker having Electirc Opening Lid and Lid Opening Control Method Thereof}

The present invention relates to an electric pressure cooker, and more particularly to an electric pressure cooker in which the lid is electrically opened and closed.

In general, the electric pressure cooker is composed of a main body and a lid that is rotatably opened to the main body. The main body is provided with a push button for operating the opening and closing of the lid, and the lid is provided with a latch for tightly binding the lid and the inner pot so that the lid does not detach from the main body even under high pressure, and an operation knob for operating the latch. And the connecting portion of the lid and the main body is provided with a connecting shaft connecting the lid and the main body, a spring for rotating in the opening direction of the lid.

Therefore, by turning the operation knob of the lid in a specific direction to release the binding of the inner pot and the lid, and then press the push button of the main body, the lid rotates upward by the elasticity of the spring opens.

However, since the electric pressure cooker having the opening and closing structure is opened in accordance with the elastic force of the spring as described above, there is a problem that the opening angle and the opening operation of the lid depends on the strength of the spring elastic force.

That is, when the spring has a strong elastic force, the lid may be opened even when the push button of the main body is incompletely pressed (for example, when the user's knowledge is pressed a little), and conversely, when the spring has a weak elastic force, the push button of the main body Despite pressing, the lid may not open properly.

Since the malfunction of the lid opening and closing can cause a big safety problem in the pressure cooker operating in the state of high temperature and high pressure, an electric pressure cooker that can safely operate the opening and closing of the lid is required.

The present invention is to solve the above problems, it is an object of the present invention to provide an electric pressure cooker having an electric opening and closing lid that can be opened and closed automatically according to the state of the lid and the main body coupled.

According to an embodiment of the present invention for achieving the above object, in the electric pressure cooker including a main body is mounted to the inner pot, and a lid installed on the upper portion of the main body and opened up and down about the connecting axis, the main body Drive means installed in; A circular tooth positioned on the connecting shaft or an extension of the connecting shaft and fixedly installed on the lid; Power transmission means for transmitting the power of the drive means to the circular teeth; One or more detection sensors to detect the closed state of the lid; And it is provided with an electric pressure cooker having an electric opening and closing lid including a control means for receiving the detection signal of the detection sensor to control the operation of the drive means.

Preferably, the main body is provided with a push button for operating the opening and closing of the lid, the lid is provided with a handle that selectively engages with the inner pot and the operation handle for rotating the clasp according to the rotational direction, the detection The sensor may sense the operation of the push button and the operation knob.

Also preferably, the power transmission means is a toothed belt.

In addition, the opening and closing control method of the lid using the electric pressure cooker of the present invention, a) pressing the push button; b) determining the closed state of the lid; c) driving the driving means to close the lid and ending the opening / closing control of the lid if it is determined in step b) that the lid is open; d) determining the operation state of the operation knob when it is determined in step b) that the lid is closed; e) driving the driving means to open the lid and ending the opening and closing control of the lid when the operation knob is in the unlocked state in step d); And f) in the step d), if the operation knob is in the locked state, a lid opening / closing control method of the electric pressure cooker is provided.

In the present invention, the lid is electrically opened and closed, so that when the user opens and closes the lid, the lid does not open while rapidly rotating upward. Therefore, it is possible to prevent a safety accident due to the rapid opening of the lid.

In addition, the present invention, unlike the conventional electric pressure cooker that relies on the elastic force of the spring, the lid is opened and closed by the driving of the motor, regardless of the number of opening and closing of the lid can always maintain a constant opening speed and opening angle. Therefore, the present invention, it is possible to reliably solve the problem of the conventional electric pressure cooker that the elasticity of the spring is weakened due to long use does not open the lid well.

The present invention is not limited only to the above-described embodiments, and those skilled in the art to which the present invention pertains can vary in various ways without departing from the spirit of the technical idea of the present invention described in the claims below. It may be changed.

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

Figure 1 is a perspective view of the main portion of the electric pressure cooker having an electric opening and closing lid according to an embodiment of the present invention, Figure 2 is a partially separated perspective view of the lid shown in FIG.

As shown in FIG. 1, the electric pressure cooker 100 of the present invention is composed of a main body 10 and a lid 20.

The main body 10 accommodates an inner pot (not shown) and includes heating means and control means for heating and controlling the inner pot. The front button of the main body 10 is provided with a push button 12 that can operate the opening and closing of the lid 20. The push button 12 is electrically connected to a control means (not shown) built in the main body 10, and sends an electric signal to the control means every time it is pressed.

The lid 20 is installed on the upper portion of the main body 10 so as to rotate in the vertical direction. 1 and 2, the lid 20 is provided with a clasp plate 24 that engages with the inner pot and an operation handle 22 that rotates the clasp plate 24. As shown in FIG.

The clasp plate 24 is formed with a plurality of clasps 26 protruding inwardly and guide pins 28 protruding upwards. The guide pin 28 is mechanically connected to the operation knob 22 through the guide groove 23 of the lid frame. Therefore, when the operation knob 22 is rotated, the clasp plate 24 is rotated through the guide pin 28 to change the binding state between the lid 20 and the inner pot while the position of the clasp 26 is changed. That is, when the operation knob 22 is placed in the locked state (or locked position), the lid 20 and the inner pot are coupled in close contact, and when the operation knob 22 is placed in the unlocked state (or unlocked position), the lid 20 is closed. ) And inner pot are separated. Therefore, opening of the lid 20 is possible only when the operation handle 22 is in the unlocked state.

On the other hand, the lid 20 is provided with a plurality of monitoring sensors 40, to detect the binding state between the lid 20 and the inner pot or the lid 20 and the main body 10. In this embodiment, a magnet 42 is installed at a portion of the clasp plate 24, and a detection sensor 40 capable of detecting the magnet 42 is installed at the lid frame. The detection sensor 40 becomes the same as the magnet 42 installed in the latch plate 24 in the up and down position only in one case of the locked state or the unlocked state of the operation knob 22. Therefore, the binding state between the lid 20 and the inner pot may be checked according to whether the magnet 42 is detected by the sensor 40. The sensor 40 transmits the detected signal to the control means built in the main body 10.

The connection portion 30 of the main body 10 and the lid 20 is provided with a connecting shaft 30, a motor 34 as a driving means, a belt 36 as a power transmission means.

The connecting shaft 30 substantially connects the main body 10 and the lid 20, and serves as an excuse for vertically rotating the lid 20. In this embodiment, the connecting shaft 30 is rotatably installed on the main body 10 and integrally coupled to the lid 20. Therefore, when the connecting shaft 30 is rotated, the lid 20 can be opened and closed while rotating in the vertical direction about the connecting shaft 30. Meanwhile, teeth 32 are formed in the connecting shaft 30 so as to easily rotate the connecting shaft 30. However, unlike the present embodiment, a gear may be installed in place of the teeth 32 on the connecting shaft 30.

The motor 34 is installed in the main body 10. The motor 34 is driven by the control means built in the main body 10 and transmits power to the connecting shaft 30 via the belt 36. Therefore, when the driving direction of the motor 34 is controlled through the control means, the lid 20 can be opened or closed.

On the other hand, at the site where the connecting shaft 30 and the motor 34 is installed, the bracket 37 and the cover 38 are respectively installed to protect the corresponding components from external shocks.

Next, we will look at the lid opening and closing control process of the electric pressure cooker configured as described above. Figure 3 is a flow chart showing a lid opening and closing operation control step of the present invention.

When the user presses the push button 12 to open or close the lid 20 of the electric pressure cooker, the control means first determines whether the lid 20 is open or closed. For reference, the closed state of the lid 20 may be detected through a separate detection sensor installed on the upper portion of the main body 10.

As a result of determining whether the lid 20 is in an open state, when the lid 20 is detected to be open, the control means moves the motor 34 in one direction (a reverse rotation direction in this embodiment) so that the lid 20 is closed. Driven by

On the contrary, if it is detected that the lid 20 is in the closed state, the control means once more determines whether the operation knob 22 is in the locked state or the unlocked state. As described above, the state of the manipulation knob 22 may be sensed through the detection sensor 40 and the magnet 42.

As a result of the state determination of the operation knob 22, when the operation knob 22 is in the unlocked state, since the lid 20 is separated from the inner pot and is opened, the control means includes a motor (eg, a motor) to open the lid 20. Rotate 34) forward.

However, on the contrary, when the operation knob 22 is in the locked state as a result of the state determination of the operation knob 22, since the lid 20 is engaged with the inner pot and still cannot be opened, the control means opens the lid 20. Notifies the user with a beep or warning light that the operation cannot be performed.

The present invention made as described above can only perform the opening and closing of the lid 20 by pressing only the push button 12, as well as judging whether the lid 20 can be opened safely, immature in the use of the electric pressure cooker It helps you to use your own electric pressure cooker safely and easily.

Figure 1 is a perspective view of the main portion of the electric pressure cooker having a power opening and closing lid according to an embodiment of the present invention,

2 is a partially separated perspective view of the lid shown in FIG.

Figure 3 is a flow chart showing a lid opening and closing operation control step of the present invention.

100: electric pressure cooker 10: main body

12: push button 20: lid

22: operation handle 24: latch plate

26: latch 30: connecting shaft

32: tooth 34: drive means / motor

36: power transmission means / belt 38: cover

40: detection sensor 42: magnet

Claims

In the electric pressure cooker comprising a main body to which the inner pot is mounted, and a lid installed on the upper part of the main body and opened and closed up and down about the connecting shaft,

Drive means installed in the main body;

A circular tooth positioned on the connecting shaft or an extension of the connecting shaft and fixedly installed on the lid;

Power transmission means for transmitting the power of the drive means to the circular teeth;

One or more detection sensors to detect the closed state of the lid; And

Electric pressure cooker having an electric opening and closing lid including a control means for receiving the detection signal of the sensor for controlling the operation of the drive means.

The method according to claim 1,

The main body is provided with a push button for operating the opening and closing of the lid, the lid is provided with a handle to selectively engage the inner pot and the handle to rotate the clasp according to the rotation direction,

The detection sensor is an electric pressure cooker having a power opening and closing lid, characterized in that for detecting the operation of the push button and the operation knob.

The method according to claim 1 or 2,

The power transmission means is an electric pressure cooker having a electrically openable lid, characterized in that the toothed belt.

A lid opening and closing control method using the electric pressure cooker according to claim 3,

a) pressing the push button;

b) determining the closed state of the lid;

c) driving the driving means to close the lid and ending the opening / closing control of the lid if it is determined in step b) that the lid is open;

d) determining the operation state of the operation knob when it is determined in step b) that the lid is closed;

e) driving the driving means to open the lid and ending the opening and closing control of the lid when the operation knob is in the unlocked state in step d); And

f) the lid opening and closing control method of the electric pressure cooker comprising the step of warning that there is an abnormality in the opening and closing state of the lid when the operation knob is in the locked state in step d).