KR20100038031A - The automatic rocking apparatus and electric rice cooker having the same - Google Patents

Abstract

PURPOSE: An automatic lock device and an electric rice cooker with the same are provided to protect children from injury due to high temperature high pressure steam by locking the electric rice cooker with passwords. CONSTITUTION: An automatic lock device hanging a second body on a first body comprises a protrusion(24) formed on one side of the first body, a clamp(43) installed on the second body to be hung on the protrusion, and a drive unit which activates the clamp to rotate within a preset angle range.

Description

The automatic rocking apparatus and electric rice cooker having the same}

The present invention relates to an automatic locking device and an electric cooker including the same.

In general, an electric rice cooker is a kitchen appliance that converts electric energy supplied from the outside into heat energy and cooks rice using the heat energy.

Electric rice cookers can be cooked conveniently, and demand continues to increase.Equipped with electronic components such as timers and microcomputers, the technology automatically adjusts the cooking temperature, time, and type of rice to improve the taste of rice. It is becoming.

Recently, since the function of the pressure cooker that can use the pressure generated during heating is applied, the inside of the electric cooker is sealed with the outside, the rice contained in the inner pot by the pressure generated therein is cooked.

As such, the electric rice cooker using pressure includes a main body on which the inner pot for receiving rice and water is seated and a cover coupled to the main body to open and close the main body. In addition, the main body is provided with a locking button for coupling the cover and the main body, and the inner pot and the cover is provided with an inner pot sealing lock that can maintain the pressure generated inside the inner pot by sealing the cover.

Looking at the operation process of the inner pot sealing lock device, by turning the locking knob which protrudes out of the cover, the clamp is connected to the locking jaw formed along the circumference of the inner pot opening, so The pressure is maintained or, on the contrary, the locked state is released.

However, since the handle of the conventional inner pot sealing device is configured to protrude out of the cover, it is not only inconvenient to clean the cover upper side, but also detrimental to the appearance design of the rice cooker. In addition, the children inadvertently turn the handle of the inner pot sealing lock inadvertently during cooking, the safety accidents were frequently injured children due to the steam leakage of high temperature and high pressure as the cover is opened.

The problem to be solved by the present invention is not only easy to clean the upper surface of the cover, but also automatic locking device and electric cooker including the same to prevent children from accidentally injured due to the leakage of high temperature and high pressure during cooking during inadvertent cooking To provide.

Automatic locking device according to an embodiment of the present invention, having a second body on the first body, the locking jaw formed on one side of the first body, is installed on the second body, the hook And a drive device for moving the clamp, the clamp rotates in a range of angles preset by the drive device.

The driving device may include a drive motor connected to the second body, a drive gear coupled to the drive motor, and a driven gear connected to the clamp and rotated by receiving power from the drive gear. have.

The automatic locking device may further include a rotating shaft coupled to the driven gear, a driving lever connected to the rotating shaft, and a driving ring connected to the driving lever, and moving together when the driving lever moves. A clamp guide hole is formed on one surface of the support ring, at least a portion of the clamp is inserted into the clamp guide hole, and the clamp may be caught or released from the locking jaw as the support ring moves.

The automatic locking device may further include a driving lever detecting sensor disposed on the second body and detecting a position of the driving lever.

The driving device includes an electromagnet connected to the second body, and an operator included in the electromagnet may rotate in conjunction with the clamp.

Electric rice cooker according to another embodiment of the present invention, the main body having an inner space, the inner pot can be seated, the inner pot having a locking jaw on one side, the cover is connected to the main body and can seal the inner space It is disposed on the cover and includes a clamp that can be caught on the locking jaw, and a drive device for moving the clamp.

The cover may include a cover case and a cover frame coupled to the cover case to define an accommodation space, wherein the drive device is disposed in the accommodation space, and the drive device is a drive motor positioned in the accommodation space. It may include a drive gear connected to the drive motor, and a driven gear connected to the clamp and rotated by receiving power from the drive gear.

The electric rice cooker may further include a rotating shaft coupled to the driven gear, a driving lever connected to the rotating shaft, and a supporting ring connected to the driving lever and moving together when the driving lever is moved. A clamp guide hole is formed at one side of the clamp, and at least a portion of the clamp is inserted into the clamp guide hole, and the clamp may be caught or released from the locking jaw as the support ring moves.

The electric rice cooker may further include a driving lever detecting sensor disposed on the cover and detecting a position of the driving lever.

The electric rice cooker may further include a rotating shaft coupled to the driven gear, and a driving lever having one side connected to the rotating shaft and the other side connected to the clamp, wherein the locking jaw includes a plurality of unit locking jaws. The plurality of unit locking jaws may be spaced apart from each other, and the clamp may include a plurality of protrusions spaced apart from each other, and the protrusion may rotate in accordance with the movement of the driving lever to overlap the unit locking jaw.

The electric rice cooker may further include a clamp support panel spaced apart from the cover frame on the opposite side of the cover case with respect to the cover frame, surrounding the clamp, and having a hole having a predetermined length on one surface thereof. The driving lever may be positioned between the cover frame and the clamp support panel, and the clamp may include a driving lever locking protrusion penetrating the hole of the clamp supporting panel, and the driving lever may be connected to the locking protrusion.

The electric rice cooker may be disposed between the cover frame and the clamp support panel, and may further include a driving lever detecting sensor for detecting a position of the driving lever.

The cover may include a cover case and a cover frame coupled to the cover case to define an accommodation space, wherein the driving device includes an electromagnet disposed in the accommodation space and having an operator, and the clamp includes the operator. It can rotate in conjunction with.

The electric rice cooker may further include a user authentication means installed in the main body, and the driving device may be controlled according to the authentication result of the user authentication means.

The user authentication means includes a password input button and a control unit connected to the button, and the control unit moves the driving device based on a result of comparing the information input by the password input button with a preset number. Can be controlled.

According to the embodiment of the present invention, the clamp is automatically rotated by the motor or the electromagnet and caught in the inner pot, so that the inner pot is easy to seal and there is an advantage of easy cleaning the upper surface of the cover.

In addition, according to an embodiment of the present invention, since the password is entered by operating the password input button of the user authentication means to be authenticated, even if the children try to open the cover, the clamp does not operate due to the authentication failure and thus open the cover. Because of this, high temperature and high pressure steam leakage does not fundamentally injure children.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Like parts are designated by like reference numerals throughout the specification.

Then, an electric rice cooker including an automatic locking device according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3.

Although the automatic locking device according to the present embodiment has been described on the basis of being applied to an electric cooker, this is only one embodiment, and may be applied to any device as long as the second body is automatically caught by the first body.

1 is a perspective view showing the appearance of the electric cooker according to an embodiment of the present invention, Figure 2 is an exploded perspective view of the electric cooker shown in Figure 1, Figure 3 is a bottom perspective view showing a coupling state of the clamp and the inner pot.

1 to 3, the electric rice cooker 100 including the automatic locking device according to the present embodiment includes a main body 10, a cover 20, an operation panel 30, a clamping device 40, and a drive. Motors 50 and 50a, driving lever sensor 60 and 60a, cooking buttons and release buttons 70 and 70a, user authentication panel 80, and inner pot 110 are included.

The main body 10 is a component constituting the outer appearance of the electric rice cooker 100 together with the cover 20, and the inner pot 110 is seated therein. The inner pot 110 has a space in which water and rice are contained and become rice by thermal energy. And, the cover engaging button 11 is coupled to one side of the main body 10, the cover engaging jaw 24 is formed on one side of the cover 20, the cover engaging button 11 is the cover engaging jaw (24) Or jammed condition is released.

The cover 20, together with the main body 10, is a component that forms the overall appearance of the electric rice cooker 100, and is coupled to the cover case 21 and the cover case 21 to form an exterior, and the inside of the main body 10. The cover frame 22 and the cover frame 22 together with the cover frame 22 to form a closed, and together with the inner side of the inner pot 110 includes a clamp support panel 23 to form another closed space.

Unlike the prior art in which the handle of the inner pot sealing lock protrudes out of the cover, the handle of the inner pot sealing lock does not protrude to the outer surface of the cover case 21 in the electric cooker 100 according to the present embodiment. In addition, the cover frame 22 may be coupled to the driven gear 41, the rotary shaft 42, and the drive motor (50, 50a), wherein the driven gear 41, the rotary shaft 42, and the drive motor ( 50 and 50a are disposed between the cover case 21 and the cover frame 22. In addition, the driving lever 45, the clamp support ring 44 and the clamp 43 may be coupled to the clamp support panel 23, in which case the drive lever 45, the clamp support ring 44, and the clamp 43 ) Is disposed between the clamp support panel 23 and the cover frame 22.

In addition, a cover detecting switch Sw is connected to one side of the main body 10, and when the cover 20 is closed to the main body 10, the cover engaging button 11 is caught by the cover engaging jaw 24 and the cover is simultaneously covered. Since the switch Sw is operated by pressing the sensing switch Sw, the clamp 20 connected to the driven gear 41 is operated as the cover 20 is closed to the main body 10 and the driving motor 50 operates. 43 is caught by the inner pot locking jaw 111 while rotating by a predetermined angle.

In addition, the cover detection switch (Sw) may be connected to one side of the cover 20, and similarly, since the drive motor 50 is operated at the same time as the cover 20 is closed to the main body 10, the clamp 43 is the inner pot latching jaw. (111) is caught. The cover detection switch Sw may be any type of switch as long as it detects two components as they are opened and closed, such as a leaf switch or a push switch.

The operation panel 30 is coupled to one side of the main body 10, and various buttons 31, 32, 70, and 70a, an operation state display window 33, and a user authentication panel 80 are coupled to one side thereof. . The operation panel 30 is located in front of the main body 10 when the user is referred to.

Clamping device 40, the cover 20 is coupled to the main body 10, the clamp 43, which is connected to the driven gear 41 is caught on the inner pot locking jaw 111 or the locking state is released, the electric cooker The inner pot 110 of the 100 is tightly coupled with the clamp support panel 23 is the component to form an inner space of the inner pot 110.

In addition, the clamping device 40 includes a rotation shaft 42 coupled to the cover frame 22 and a driving gear 52 and 52a coupled to the rotation shaft 42 and connected to the driving motors 50 and 50a. Is connected to the driven gear 41 and the clamp support panel 23 which are operated in engagement with the driving gear 41, and the drive lever 45 and the clamp support panel 23 which are connected to the rotary shaft 42 to rotate within a predetermined angle range. It is coupled to, the driving lever engaging projection 44c is formed on one side, the driving lever 45 is caught by the driving lever engaging projection 44c, the clamp support ring 44 which rotates within a predetermined angle range And, the clamp 43 is coupled to the clamp support panel 23, one end portion is guided to the clamp guide hole 44b formed on one side of the clamp support ring 44 to rotate within a predetermined angle range ).

Therefore, according to the clamping device 40 configured as described above, the cover 20 is closed on the main body 10 and at the same time the cover detection switch (Sw) detects this drive motor 50 is operated. When the drive motor 50 is operated, the drive gear 52 coupled to the motor shaft 51 of the drive motor 50 rotates while being engaged with the driven gear 41, and is coupled with the driven gear 41. Rotating shaft 42 is rotated. In addition, when the rotary shaft 42 is rotated, the driving lever 45, one end of which is coupled to the rotary shaft 42 is rotated, wherein the support ring guide 47 is guided to the support ring guide hole 44a and clamps. The support ring 44 is rotated within a range of preset angles.

Then, when the clamp support ring 44 is rotated, one end of the clamp 43 is guided to the clamp guide hole 44b formed at one side of the clamp support ring 44, and the clamp support panel 23 Since the other end portion of the clamp 43 coupled to the clamp support 46 coupled to one side is caught by the inner pot catching jaw 111, the inner pot 110 is tightly coupled to the clamp support panel 23. The inner side of the inner pot 110 forms a sealed space.

As such, when the other end of the clamp 43 is caught by the inner pot catching jaw 111, the inner pot 110 is sealed to the outside, so that the electric cooker 100 becomes a pressure cooker during cooking, while the clamp 43 is When the other end is released from the inner pot catching jaw 111, the cover 20 is opened to remove the finished rice by moving the cover 20, or to remove some.

In addition, the cover frame 22 and the clamp support panel 23 may be integrally formed. In this case, the cover frame 22 and the clamp support panel 23 may be integrally formed on one side of an assembly (not shown). The clamping device 40 can be combined.

The drive motors 50 and 50a are drive devices for rotating the clamp support ring 44 to rotate the clamps 43 within a predetermined angle range, and are coupled to the drive motors 50 and 50a. 52, 52a can engage the driven gear 41, which is connected to the clamp 43, to rotate the clamp 43. In this case, the drive gears 52 and 52a may be bevel gears.

As shown in FIG. 2. When a plurality of drive motors 50 and 50a are applied, one is operated by the positive rotation drive motor 50 and the other is operated by the reverse rotation drive motor 50a. On the other hand, when only one driving motor 50 is applied, the clamp 43 may be rotated in both directions by rotating the motor shaft 51 forward or reversely.

The drive lever detecting sensors 60 and 60a are components that detect the position of the drive lever 45, and any kind of sensor capable of detecting the position may be used, including a proximity sensor. When the driving lever detecting sensors 60 and 60a detect the position of the driving lever 45 and determine that the driving lever 45 is in the initial position or the final position, the driving motors 50 and 50a are stopped, and thus the clamp 43 ) Is accurately caught on the inner pot locking jaw 111, or is separated from the inner pot locking jaw (11) to completely release the locking state.

The cooking button 70 is a component for performing the cooking function in the state in which the clamp 43 is caught on the inner pot locking jaw 111, and the release button 70a is the inner pot of the clamp 43 of the sealed electric rice cooker 100. It is a component that can be executed to completely release the locking state from the locking step 111.

Then, when the cover 20 is closed by the main body 10, pressing the cover detection switch (Sw), the drive motor 50 for rotation only is activated, the clamp 43 rotates and is caught by the inner pot locking jaw 111. At this time, since the driving lever sensor 60 operates to detect the position of the driving lever 45, it is determined that the clamp 43 is caught by the inner pot locking jaw 111 and the driving motor 50 is completed. It doesn't work anymore.

On the other hand, when the release button 70a is pressed, the reverse rotation drive motor 50a is operated to return the drive lever 45 to the release position, and the clamp 43 is separated from the inner pot locking jaw 111. At this time, the drive lever sensor 60a is activated to detect the position of the drive lever 45, it is determined that the clamp 43 is completely removed from the inner pot locking jaw 111, the drive motor 50a is no longer It doesn't work. In particular, since the reverse rotation drive motor 50a does not operate even when the release button 70a is pressed during cooking, the clamp 43 is not released from the inner pot catching jaw 111.

However, when cooking is finished, the clamp 43 is finally released from the inner pot locking jaw 111 by pressing the release button 70a. And, if you want to add other grains, such as rice contained in the inner pot 110 during cooking, by pressing the cancel button (not shown) provided in the main body 10, by canceling the entire function inner pot 110 Put the desired grain into the, then press the cook button 70 to restart cooking.

The user authentication panel 80 is a user authentication means for fundamentally blocking safety accidents such as high temperature and high pressure steam leakage accidents caused by involuntary opening and closing of the cover 20 of the children. A component that works to grant (authenticate) or deny permissions.

That is, since only the adult, such as a housewife who handles the electric cooker 100 can be set to be given a password as a party user, children who do not have a password is considered to be not a party user. Therefore, the driving motors 50 and 50a may be operated only when it is determined as a legitimate user according to the authentication result of the user authentication panel 80.

The user authentication panel 80 includes a password input button 81 and a password display window 33 for setting or inputting a password and operating the password input button 81 while checking the password display window 33. can do. Since the driving motors 50 and 50a are operated only when the input password matches the set password, the driving motors 50 and 50a operate only when the input password is authenticated after the cooking is finished, and the clamp 43 It is not possible to open the cover 20 until the latched state of the door is released. On the other hand, if the authentication fails, the cover 20 cannot be opened. In addition, the user authentication panel 80 may be omitted.

In addition, in the electric rice cooker 100 including the automatic locking device according to an embodiment of the present invention, with reference to FIGS. 4 to 9 for the operation of the clamp 43 when starting cooking and when the cooking is finished. Will be explained.

Figure 4 is a perspective view showing that the clamp is caught on the inner pot stopper, Figure 5 is a plan view schematically showing a part shown in Figure 4, Figure 6 is a cooking process after closing the cover, the operation process of the electric cooker 7 is a perspective view illustrating that the clamping state of the clamp is released, FIG. 8 is a plan view schematically illustrating a portion of FIG. 7, and FIG. In this case, there is a flowchart illustrating the operation of the electric cooker.

4 to 9, water and rice are mixed and placed in the inner pot 110 to be seated inside the main body 10, and then the cover 20 is closed to operate the cover detection switch Sw, thereby driving the motor 50. Clamp guide hole (44b) is inclined to one side of the clamp support ring 44 is rotated as the drive lever 45 is rotated, the clamp support ring 44 is connected to the drive lever 45 is rotated One end of the clamp 43 is guided along.

At this time, the clamp 43 in which one end portion is guided along the inclined clamp guide hole 44b is within a range of a predetermined angle with respect to the clamp support 46 coupled to the clamp support panel 23. Rotate, the clamp 43 is rotated so that the other end of the clamp 43 is caught on the inner pot locking jaw 111, the drive lever sensor 60 detects the position of the drive lever 45, When it is detected that the final position has been reached, the driven drive motor 50 stops operating, and the clamp 43 is completely caught by the inner pot locking jaw 111, and then, by pressing the cooking button 70, it is finally achieved. Cooking is started. In this case, a password may be set by specifying and inputting a password for user authentication.

In addition, the locked state of the clamp 43 is set so that an LED lamp (not shown) disposed on one side of the cooking button 70 is turned on and displayed, or a sound is generated by a separate buzzer. Can also be set.

On the other hand, when the cooking is finished to operate the release button (70a), first need to authenticate the user using the user authentication panel 80, the password input button 81 to operate the normal user authentication is made by entering a password After the ground, the driving motor 50a is activated so that the clamp 43 returns to the initial position where the locking state with the inner pot locking jaw 111 is completely released, and the driving lever detection sensor 60a of the driving lever 45 is closed. When detecting the position, and when it is detected that the locking state is in the initial position released, the driving motor 50a that has been operated stops operation, and the clamp 43 is caught from the inner pot catching jaw 111. It is in a completely released state. Thus, when the clamp 43 is completely released from the inner pot catching jaw 11, the cover 20 may be opened after the cover opening button 11 is operated.

Therefore, the electric rice cooker 100 including the automatic locking device according to an embodiment of the present invention equipped with a user authentication means, the children are injured by the steam leakage of high temperature and high pressure due to the indiscriminate opening and closing of the cover 20 It can fundamentally prevent accidents. In particular, it is possible to prevent the release state of the clamp 43 caught on the inner pot catching portion 43 during cooking by preventing the release button 70a from operating during cooking.

And, the operation of the electric rice cooker including the automatic locking device according to another embodiment of the present invention will be described with reference to FIGS. 1 and 10 to 12.

10 is a schematic plan perspective view of an electric cooker according to another embodiment of the present invention, Figure 11 is a flow chart showing the operation process when starting cooking after closing the cover, Figure 12 is a cover after cooking is finished It is a flowchart showing the operation process when opening the.

1 and 10 to 12, the electric cooker 100 including an automatic locking device according to another embodiment of the present invention, the main body 10, the cover 20, the operation panel 30, clamping The device 40a, the electromagnet 90, the return spring S, the drive lever sensor 60, 60a, the cooking button and the release button 70, 70a, the user authentication panel 80, and the inner pot 110 Include. Descriptions of parts similar to those of the exemplary embodiment shown in FIGS. 1 to 9 will be omitted.

First, when the inner pot 110 is seated on the main body 10, and then the cover 20 is closed to operate the cover detection switch Sw, the electromagnet 90 is operated to rotate the driving lever 45 and the driving lever. One end of the clamp 43 is guided along the clamp guide hole 44b which is inclined to one side of the clamp support ring 44 while the clamp support ring 44 connected to the 45 is rotated.

As shown in FIGS. 4 and 5, the clamp 43 in which one end is guided along the inclined clamp guide hole 44b is referred to the clamp support 46 coupled to the clamp support panel 23. Is rotated within the range of a predetermined angle, and finally the other end of the clamp 43 is caught on the inner pot locking jaw 111, the drive lever sensor 60 detects the position of the drive lever 45, When it is detected that the final position has been reached, the operated electromagnet 90 stops the operation, and at this time, the clamp 43 is completely caught by the inner pot locking jaw 111 and is cooked by pressing the cooking button 70 again. Is disclosed.

That is, the electromagnet 90 rotates the drive lever 45 so that the clamp 43 is rotated within a range of a predetermined angle so as to be caught by the inner pot catching jaw 111 or the locked state is released. The electromagnet 90 is an electromagnet body 91, an electromagnet operating shaft 92 and an electromagnet operating shaft 92 which are housed inside the electromagnet body 91 and reciprocated out of the electromagnet body 91 and are transported. It is coupled to the end includes an actuator 93 is reciprocated by a predetermined section in accordance with the action of the attraction or reaction force by the induced magnetic force generated in the electromagnet body 91, one side of the actuator 93 is a drive lever Coupled to 45.

And, one side of the electromagnet 90 may further include a return spring (S), so that the actuator 93 is easily returned to its original position. The engagement position of the return spring S with respect to the electromagnet 90 may be changed depending on whether the clamp 43 is set to the initial state of the inner pot catching jaw 11 to the initial state or vice versa. The return spring S may be deleted.

Therefore, in the electric rice cooker according to another embodiment of the present invention, unlike the driving motors 50 and 50a in the embodiment shown in Figs. 1 to 9, the electromagnet 90 is operated as a driving device, As the operator 93 reciprocates linearly, the clamp 43 rotates about the clamp support 46, so that the clamp 43 is caught by the inner pot catching jaw 111 or the latching state is released. .

As such, the electric rice cooker including an automatic locking device according to various embodiments of the present disclosure has a technical feature in that the clamp 43 is automatically caught on the inner pot catching jaw 111 or the catching state is automatically released. In addition, there is another technical feature to fundamentally block safety accidents such as high-temperature, high-pressure steam leakage caused by children who are not party users by opening the cover with a user authentication means.

And, the operation of the electric rice cooker including the automatic locking device according to the clamping device of another embodiment of the present invention will be described with reference to FIGS.

FIG. 13 is a perspective view of an electric rice cooker according to another embodiment of the present invention, FIG. 14 is an exploded perspective view of FIG. 13, FIG. 15 is a view showing a part of the driving device shown in FIG. 14, and FIG. 16 is a clamp. FIG. 17 is a plan view illustrating the catch of the inner pot locking jaw, and FIG. 17 is a plan view illustrating the release state of the clamp.

13 to 17, according to the clamping device 40a of another embodiment, the clamp 43, which is connected to the driven gear 41 when the cover 20 is coupled to the main body 10, has an inner pot latching jaw. By being caught or locked by the 111, the inner pot 110 of the rice cooker 100 is tightly coupled to the clamp support panel 23, so that the inner side of the inner pot 110 forms a sealed space.

In addition, the clamping device 40a according to another embodiment includes a driving gear 52 coupled to the rotation shaft 42 and the rotation shaft 42 coupled to the cover frame 22 and connected to the driving motors 50 and 50a. A driving lever (45) connected to the driven gear (41) and a clamp support panel (23) operated in engagement with the (52a), and connected to the rotating shaft (42) to rotate within a preset angle range, one on one side. The above clamp 43 is formed, is coupled to the clamp support panel 23, and the driving lever locking projection 44d is formed at one side, so that the driving lever 45 is caught by the driving lever locking projection 44d. According to this includes a disk-shaped clamp coupling panel 48 that rotates within a range of a predetermined angle.

Therefore, according to the clamping device 40a configured as described above, since the cover 20 is closed to the main body 10 and the cover detecting switch Sw detects this, the driving motor 50 is operated. When the drive motor 50 is operated, the drive gear 52 coupled to the motor shaft 51 of the drive motor 50 is engaged with the driven gear 41 and rotated to engage with the driven gear 41. The rotating shaft 42 is rotated. In addition, when the rotation shaft 42 is rotated, the driving lever 45, one end of which is coupled to the rotation shaft 42 is rotated, where the clamp coupling panel 48 is rotated within a predetermined angle range.

In addition, when the clamp coupling panel 48 is rotated, the one or more clamps 43 coupled to one side are caught by the inner pot catching jaw 111, so that the inner pot 110 is tightly coupled to the clamp support panel 23 to the inner pot. The inner side of the 110 forms a sealed space.

In addition, the cover frame 22 and the clamp support panel 23 may be integrally formed. In this case, one side of an assembly (not shown) in which the cover frame 22 and the clamp support panel 23 are integrally configured. The clamping device 40a can be coupled to it.

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of the present invention.

1 is a perspective view showing the appearance of an electric rice cooker according to an embodiment of the present invention,

2 is an exploded perspective view of the electric rice cooker shown in FIG.

Figure 3 is a bottom perspective view showing a coupling state of the clamp and the inner pot,

Figure 4 is a perspective view showing that the clamp is caught on the inner pot locking jaw,

5 is a plan view schematically showing a portion of FIG. 4;

6 is a flowchart illustrating the operation of the electric cooker when starting cooking after closing the cover,

7 is a perspective view illustrating that the clamping state of the clamp is released;

FIG. 8 is a plan view schematically showing a portion of FIG. 7;

9 is a flowchart illustrating an operation process of the electric rice cooker when the cover is opened after cooking is finished;

10 is a schematic plan view of an electric rice cooker according to another embodiment of the present invention,

11 is a flowchart illustrating an operation process in the case of starting cooking after closing the cover,

12 is a flowchart illustrating an operation process when the cover is opened after cooking is finished;

13 is a perspective view of an electric rice cooker according to another embodiment of the present invention,

14 is an exploded perspective view of FIG. 13,

FIG. 15 is a perspective view showing a part of the driving device shown in FIG. 14;

16 is a plan view showing that the clamp is caught on the inner pot locking jaw,

17 is a plan view showing that the clamping state of the clamp is released.

<Description of the symbols for the main parts of the drawings>

10: body 11: cover latch button

20: cover 21: cover case

22: cover frame 23: clamp support panel

24: cover jam step 30: operation panel

31: Insulation selection button 32: Cooking selection button

33: operation status display window 40: clamping device

41: driven gear 42: rotating shaft

43: clamp 44: clamp support ring

44a: support ring guide hole 44b: clamp guide hole

44c, 44d: driving lever locking projection 45: driving lever

46: clamp support 47: support ring guide

48: clamp coupling panel 50 (50a): drive motor

51 (51a): Motor shaft 52 (52a): Drive gear

60 (60a): drive lever detection sensor 70 (70a): cook (release) button

80: user authentication panel 81: password input button

82: password display window 90: electromagnet

91: electromagnet body 92: electromagnet working shaft

93: operator 100: rice cooker

110: inner pot 111: inner pot hanging jaw

S: Return spring Sw: Cover detection switch

Claims (15)

An automatic locking device for locking the first body to the second body, Hanging jaw formed on one side of the first body, A clamp installed on the second body and caught on the locking jaw; A driving device for moving the clamp Including; The clamp rotates in a range of angles preset by the drive device. Automatic lock. In claim 1, The drive device, A drive motor connected to the second body, A drive gear coupled to the drive motor, and A driven gear that is connected to the clamp and is rotated by receiving power from the drive gear Containing Automatic lock. In claim 2, A rotating shaft coupled to the driven gear, A drive lever connected to the rotary shaft, and A support ring which is connected to the driving lever and moves together when the driving lever moves More, A clamp guide hole is formed on one surface of the support ring, at least a portion of the clamp is inserted into the clamp guide hole, and the clamp is caught or released from the locking jaw as the support ring moves. Automatic lock. 4. The method of claim 3, Is disposed on the second body, the automatic locking device further comprises a drive lever detecting sensor for detecting the position of the drive lever. In claim 1 The driving device includes an electromagnet connected to the second body, and the operator is included in the electromagnet can lock the clamp in cooperation with the clamp. Body with internal space, It can be seated in the inner space, the inner pot having a locking jaw on one side, A cover connected to the main body and capable of sealing the internal space; A clamp disposed on the cover and capable of being caught by the locking jaw, and A driving device for moving the clamp Electric cooker comprising a. In claim 6, The cover includes a cover case and a cover frame coupled to the cover case to define a receiving space. The drive device is disposed in the accommodation space, The drive device, A drive motor located in the accommodation space, A drive gear connected to the drive motor, and A driven gear that is connected to the clamp and is rotated by receiving power from the drive gear Containing electric rice cooker. In claim 7, A rotating shaft coupled to the driven gear, A drive lever connected to the rotary shaft, and A support ring which is connected to the driving lever and moves together when the driving lever moves More, A clamp guide hole is formed on one surface of the support ring, at least a portion of the clamp is inserted into the clamp guide hole, and the clamp is caught or released from the locking jaw as the support ring moves. electric rice cooker. In claim 8, Is disposed on the cover, the electric rice cooker further comprising a drive lever sensor for detecting the position of the drive lever. In claim 7, A rotating shaft coupled with the driven gear, and A driving lever having one side connected to the rotation shaft and the other side connected to the clamp More, The locking jaw has a plurality of unit locking jaws, the plurality of unit locking jaws are spaced apart from each other, the clamp includes a plurality of protrusions are separated from each other, the protrusion is rotated in accordance with the movement of the drive lever Which can overlap with unit jaw electric rice cooker. In claim 10, And a clamp support panel spaced apart from the cover frame on the opposite side of the cover case with respect to the cover frame, surrounding the clamp, and having a hole having a predetermined length on one surface thereof. The driving lever is located between the cover frame and the clamp support panel, The clamp is provided with a driving lever locking projection penetrating the hole of the clamp support panel, the locking projection is connected to the driving lever electric rice cooker. In claim 11, Is disposed between the cover frame and the clamp support panel, the electric rice cooker further comprises a drive lever sensor for sensing the position of the drive lever. In claim 6, The cover includes a cover case and a cover frame coupled to the cover case to define an accommodation space, wherein the drive device includes an electromagnet disposed in the accommodation space and having an operator, the clamp interlocked with the operator. Rotary electric cooker. In claim 6, The electric cooker further comprises a user authentication means installed in the main body, the drive device is controlled according to the authentication result of the user authentication means. The method of claim 14, The user authentication means includes a password input button and a control unit connected to the button, and the control unit controls the movement of the driving apparatus based on a result of comparing the information input by the password input button with a preset number. Electric cooker to control.

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