KR102542824B1 - electric cooker - Google Patents

Abstract

The main body in which the inner pot is accommodated is provided to enable cooking in a pressure state and a non-pressure state inside the inner pot, respectively, so that cooking quality and convenience of use are improved. a lid coupled to the upper part of the main body to be opened and closed, and having a handle part interlocked with an inner pot locking means for locking the inner pot on one side of the upper surface; and a pressure switching unit including a communication member penetrating the lid so that a lower end communicates with the inside of the inner pot, and a piston unit pressurized as the handle part rotates to selectively seal the upper end of the communication member. do.

Description

electric cooker {electric cooker}

The present invention relates to an electric cooker, and more particularly, to an electric cooker provided to enable cooking in a pressure state and a non-pressure state inside an inner pot, thereby improving cooking quality and convenience of use.

In general, an electric cooker refers to an electric rice cooker, an electric pressure cooker, etc. used for cooking food at businesses and at home, and includes a main body equipped with a heating unit and a lid covering an upper portion of the main body.

In addition, an inner pot for accommodating food is built into the main body, and the lid is opened and closed by being hinged to one side of the main body, and an inner pot cover is provided at a lower portion to seal an upper opening of the inner pot.

At this time, a flow hole communicating with the inside of the inner pot is formed on one side of the inner pot cover, and steam inside the inner pot can flow through the flow hole to the pressure adjusting means provided in the lid.

In detail, the pressure control means may be provided with a solenoid valve electrically driven to open and close a steam discharge passage connecting the inside of the inner pot and the outside of the cooker, a pressure weight valve for maintaining the pressure inside the inner pot at a constant level, and the like.

That is, when cooking starts, the steam discharge passage is closed through the solenoid valve to increase the pressure inside the inner pot, but the pressure inside the inner pot can be maintained at a constant level through the pressure weight valve.

However, in the conventional electric cooker, since the inside of the inner pot is maintained at a set pressure through the interaction of the weight pressure and steam pressure of the pressure weight, it is not possible to apply/select a cooking method suitable for the user's taste or type of food, resulting in poor cooking quality. There was a problem.

That is, in the case of cooking ingredients that do not require pressure, there was a problem such as loss of texture due to high pressure. There was a problem in that an electric rice cooker was purchased and used, or separate cooking using a general pot was required.

Accordingly, during the cooking process, the solenoid valve is opened more at a certain time/cycle than the pressure rice, the heat is reduced, or the soaking time is increased to provide a soft texture, but it does not reach the taste of rice cooked with a non-pressure electric rice cooker.

In addition, when there is pressure inside the inner pot during cooking, the pressure safety device that blocks the opening of the lid in the high-pressure state of the inner pot makes it impossible to open and close the lid to check the cooking status or add additional ingredients, which causes inconvenience to the user. There was a problem that caused the

Korean Patent Registration No. 10-0272856

In order to solve the above problems, an object of the present invention is to provide an electric cooker provided to cook in a pressure state and a non-pressure state inside the inner pot, thereby improving cooking quality and convenience of use.

In order to solve the above problems, the present invention is a body in which the inner pot is accommodated; a lid coupled to the upper part of the main body to be opened and closed, and having a handle part interlocked with an inner pot locking means for locking the inner pot on one side of the upper surface; and a pressure switching means including a communication member penetrating the lid so that a lower end communicates with the inside of the inner pot, and a piston unit pressurized as the handle unit rotates to selectively seal the upper end of the communication member. On the other side of the upper surface part, a steam cap part having a guide space formed therein is detachable so that the steam introduced through communication with the pressure conversion means is guided and discharged to the outside, and the piston part passes through a piston guide hole formed at the other end of the steam cap part, A piston body portion inserted into the pressure conversion hole of the communication member, and the piston body portion fixed to the central portion and holder extensions formed at both ends are inserted into the guide grooves of the steam cap portion and elastically supported. An electric cooker is provided.

Here, it is preferable that a rounded protruding push surface is formed at an end of the handle part to overlap with a moving trajectory of the piston part during locking rotation.

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In addition, a first sealing member is provided on the outer circumference of the piston body and alternately adheres to the rims of the pressure conversion hole and the piston guide hole during locking and unlocking rotation of the handle unit, and when the handle unit locks and rotates, the piston guide hole It is preferable that a second sealing member spaced apart from the first sealing member is provided in correspondence with the distance between the pressure conversion hole and the piston guide hole so as to be in close contact with the rim.

Here, a catching hook protrusion that engages the rim of the guide groove when the handle part unlocks and rotates protrudes from the holder extension, and the catching hook protrusion extends between the rim of the guide groove and the pressure conversion hole and the piston guide hole. It is preferable to be provided so as to be spaced more than the interval.

On the other hand, on one side of the upper surface of the lid, a mounting groove recessed into which the steam cap unit is inserted is formed, and at both ends of the steam cap unit, elastic members are supported and the cap fixing portion hooked to the rim of the mounting groove unit is coupled with a hook. It is desirable to be

The present invention provides the following effects through the above solution.

First, since the non-pressure cooking mode for cooking requiring no pressure and the pressure cooking mode for cooking requiring high pressure can be easily switched according to the opening and closing of the pressure switching means, various cooking methods can be freely used with one device. In addition, since it is possible to cook according to the user's taste, such as the chewy texture unique to pressured rice and the soft texture unique to non-pressured rice, product compatibility and cooking quality can be improved.

Moreover, in the non-pressure cooking mode, since the lid can be freely opened and closed without restriction due to the pressure safety device, it is possible to easily input additional ingredients or check the cooking state during cooking, thereby improving the convenience of use of the product.

Second, since the opening/closing state of the pressure switching means is switched in response to the rotation of the locking and unlocking of the handle, the non-pressure cooking mode and the pressure cooking mode can be easily selected and used by simply rotating the handle, significantly improving the convenience of use of the product. It can be.

Third, the piston unit is provided with a plurality of sealing members spaced apart so as to closely adhere to the rims of the pressure conversion hole and the piston guide hole, while the restraint state is firmly maintained by pressurization during the locking rotation of the handle unit, so that not only the sealing performance is further improved, but also Leakage of the discharged steam can be prevented, and safety accidents such as burns can be prevented.

Fourth, the holder extension part is formed so that the hooking hook protrusion extends from the separation prevention protrusion to a distance greater than or equal to the gap between the pressure conversion hole and the piston guide hole, so that the first sealing member alternately seals the pressure conversion hole and the piston guide hole. And since no separate parts are required to adhere to the edge of the piston guide hole, the number of parts is reduced and the productivity and assembly quality of the product can be remarkably improved.

Fifth, the steam cap part is assembled in an accurate position when the operator presses the grip protrusion and inserts the fixing protrusion at the lower end of the coupling step, so assemblability is improved, and both ends are elastically supported by elastic members. Support strength is reinforced so that it can be more stably fixed to the mounting groove.

1 is an exploded perspective view showing a lid portion of an electric cooker according to an embodiment of the present invention.
2a and 2b are cross-sectional views showing an open/closed state of a pressure conversion means in an electric cooker according to an embodiment of the present invention.
3 is a cross-sectional view showing a part of a handle part and a pressure conversion means in an electric cooker according to an embodiment of the present invention.
4 is a perspective view showing a steam cap of an electric cooker according to an embodiment of the present invention;
5 is a cross-sectional view showing a mounting state of a steam cap part in an electric cooker according to an embodiment of the present invention.
6 is an exemplary view showing a modified example of a coupling structure of a communication member in an electric cooker according to an embodiment of the present invention.
7 is a block diagram showing an electric cooker according to an embodiment of the present invention.

Hereinafter, an electric cooker according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view showing a lid of an electric cooker according to an embodiment of the present invention, and FIGS. 2A and 2B are cross-sectional views showing an open and closed state of a pressure conversion means in an electric cooker according to an embodiment of the present invention. 3 is a cross-sectional view showing a part of the handle part and the pressure conversion means in the electric cooker according to an embodiment of the present invention, FIG. 4 is a perspective view showing the steam cap part of the electric cooker according to an embodiment of the present invention, and FIG. It is an exemplary cross-sectional view showing the mounting state of the steam cap part in the electric cooker according to one embodiment of the present invention, and FIG. 6 is an exemplary view showing a modified example of the coupling structure of the communication member in the electric cooker according to one embodiment of the present invention. 7 is a block diagram showing an electric cooker according to an embodiment of the present invention.

1 to 7, the electric cooker 100 according to the present invention includes a main body (not shown), a lid 10, and a locking ring 20. It includes a pressure response operation means 90, a pressure conversion means 50 and a steam cap part 60.

Here, a mounting space equipped with a heating means 19c such as a hot plate heater or an induction heating device is formed inside the main body (not shown), and an inner pot (not shown) for accommodating food is mounted in the mounting space. At this time, a plurality of flange parts protrude from the upper end of the inner pot (not shown) outward in the radial direction.

On the other hand, referring to FIGS. 1 to 2B, the lid 10 is coupled to the upper portion of the main body (not shown) to be opened and closed, and an inner lid portion 10b in which various electrical components and wiring are installed, and the inner lid portion (10b) is provided, including an outer lid portion (10a) provided with a handle portion (11) on one side of the upper surface portion.

Hereinafter, one side is preferably understood as a direction toward the open end 17 of the lid 10, and the other side is preferably understood as a direction toward the hinge connection portion 16 of the lid 10.

Here, it is preferable that the inner pot locking means is provided as a locking ring 20 selectively locked to a flange part provided at an upper end of the inner pot (not shown). And, the locking ring 20 is rotatably coupled to the lower surface of the inner lid portion 10b and selectively engaged with the flange portion according to a rotational angle.

In detail, on the inner circumference of the locking ring 20, a plurality of locking protrusions (not shown) protrude radially inward to correspond to each of the flange portions. At this time, when the locking ring 20 is rotated at an unlocking angle, each locking protrusion (not shown) is disposed in a space between the flange parts, and the lid 10 and the inner pot (not shown) can be separated and opened and closed. And, when the locking ring 20 is rotated at a locking angle while the lid 10 is closed, each of the locking protrusions (not shown) is constrained to the lower end of the flange portion so that the lid 10 and the inner pot (not shown) are connected. can be locked

Here, the handle base part 30 is connected to the lower end of the handle part 11 . In detail, the handle base part 30 includes a support part 30c, and a locking ring interlocking part 30a and a safety bar interlocking part 30b protruded from one end and the other end of the support part 30c. At this time, the support part 30c is keyed to the lower end of the handle part 11 on the upper surface, and the support protrusion 14 of the inner lid part 10b is inserted into the rotation support groove 34 formed on the lower surface Rotation is supported. Accordingly, the handle base part 30 can rotate integrally with the handle part 11 without twisting.

Further, the locking ring interlocking part 30a extends to overlap with the rotational trajectory of the locking ring 20, and a connection hole 31 is formed through one side overlapping with the locking ring 20. At this time, the connecting protrusion 23 protruding from the upper surface of the locking ring 20 is inserted into and coupled to the connecting hole 31 through the arc-shaped long hole 15 of the inner lid 10b. The locking ring 20 may rotate in conjunction with the handle part 11 .

In addition, in the safety bar interlocking part 30b, a safety bar 35 is linearly moved to one side and the other when the handle base part 30 rotates, and the linear movement is selectively limited by the pressure safety device 90c. Connected.

In detail, when the internal pressure of the inner pot (not shown) increases above the set safety pressure, the safety pin of the pressure safety device 90c rises, the safety bar 35 is restrained, and the linear movement of the safety bar 35 is restricted. do. Accordingly, the rotation of the handle base part 30 connected to the safety bar 35 is restricted, and unlocking of the locking ring 20 can be prevented when the inner pot is under high pressure.

Meanwhile, a lead plate 80 is coupled to the lower surface of the inner lid 10b, and an inner pot cover (not shown) may be additionally mounted on the lower surface of the lead plate 80.

In this embodiment, as an example, an airtight packing 82 for sealing the upper opening of the inner pot (not shown) is provided on the lower surface of the lead plate 80, but the airtight packing 82 is the inner pot cover (not shown). It is also possible to be provided on the border of the city).

At this time, a plurality of steam flow holes are formed through the other side of the inner pot cover (not shown) so that steam inside the inner pot is discharged, and a plurality of communication holes ( 81a, 81b, 81c) are formed through.

And, between the lead plate 80 and the inner cover portion 10b, the respective communication holes 81a, 81b, and 81c are integrally covered, and mounting corresponding to the respective communication holes 81a, 81b, and 81c is provided. A control plate 70 through which holes 71a, 71b, and 71c are formed is provided. Of course, the control plate 70 and the lead plate 80 may be integrally provided.

On the other hand, the other side of the outer lid portion (10a) is formed with a plurality of upper through-portions (13a, 13b, 13c) to face each mounting hole (71a, 71b, 71c), the inner lid portion (10b) A lower through portion 13d having a size covering the formation area of each of the upper through portions 13a, 13b, and 13c is formed.

At this time, the pressure conversion means 50 is disposed so as to penetrate the lid 10 through one of the upper through portions 13a, 13b, and 13c and through the lower through portion 13d. It is provided so that a selective opening and closing state for steam discharge is maintained. That is, the pressure conversion unit 50 is provided so that a selected one of open and closed states is continuously maintained during the cooking process.

In addition, the pressure response operation means 90 passes through the other upper through parts 13b and 13c and the lower through part 13d except for one upper through part 13a where the pressure conversion means 50 is disposed. It is arranged so as to penetrate the lid 10. Here, the pressure response actuating means 90 includes a solenoid valve 90b that opens and closes according to an electric signal, and a pressure weight valve 90a having a weight that moves up and down according to the steam pressure inside the inner pot.

In detail, the pressure response operation means 90 is selectively opened and closed according to the pressure level inside the inner pot in the pressure cooking mode in which the pressure conversion means 50 is closed.

That is, when the pressure conversion means 50 is opened, cooking is performed in a non-pressure cooking mode in which steam inside the inner pot is continuously discharged during cooking, and when the pressure conversion means 50 is closed, the pressure response operating means 90 ), cooking can be performed in a pressure cooking mode in which the pressure inside the inner pot is maintained at a constant level.

To this end, it is preferable that the internal passage of the pressure conversion means 50 has a cross-sectional area of such a size that all steam generated during cooking is discharged and no pressure is generated inside the inner pot.

In addition, the mounting groove 12 is recessed along the rim of the upper through-parts 13a, 13b, and 13c on the upper surface of the upper outer cover 10a, so that the pressure response operating means 90 and the pressure switching means The steam cap part 60 for guiding steam discharge of 50 may be detachable.

On the other hand, referring to FIGS. 1 to 4, the steam cap part 60 covers the upper penetration parts 13a, 13b, and 13c where the pressure conversion means 50 and the pressure response operation means 90 are installed. It is provided in a size to be attached to and detached from the mounting groove 12.

At this time, the steam cap part 60 is disposed adjacent to the handle part 11 along the top surface of one side of the lid 10, and the other end overlaps with the rotational trajectory of the end when the handle part 11 is rotated. It is preferable to be provided in a round shape so as not to become.

In detail, the steam cap part 60 may be provided with a lower body part 61 and an upper body part 62, and further includes a cover part 63 forming the upper appearance of the upper body part 62 It is also possible to be provided.

Here, referring to FIGS. 2A to 4, steam flow holes 61a, 61b, and 61c corresponding to the respective upper through-holes 13a, 13b, and 13c are formed through the bottom of the lower body portion 61. However, the partition wall portion 61d protrudes along the edge of the bottom portion.

In addition, at one end of the lower body portion 61, the assembly rib 61e and the coupling rib 61f protrude so as to be spaced apart from each other in the vertical direction, and at both ends of the lower body portion 61, an assembly hook is attached to the top of the outer surface. It is preferable to provide an assembly elastic piece 61g in which the protrusion 61h protrudes.

In detail, the lower body portion 61 is inserted into the mounting groove 12 so that the coupling rib 61f is inserted into and restrained under the restraining step 12a protruding from one side edge of the mounting groove 12. At this time, the respective upper through portions 13a, 13b, and 13c and the respective steam flow holes 61a, 61b, and 61c may be mutually aligned.

In addition, an auxiliary bulkhead portion 61w protrudes from the edge of the third steam flow hole 61c provided on one side of the bottom portion of the lower body portion 61.

On the other hand, the upper body portion 62 is formed with a packing groove 62a so that the sealing member 64 is mounted on the outer portion corresponding to the partition wall portion.

Here, the upper body part 62 is seated on the upper part of the lower body part 61 so that the upper end of the partition wall part 61d is inserted into the packing groove 62a, and the sealing member 64 seals the packing groove ( 62a) and the partition wall portion 61d may be sealed.

At this time, the lower surface of the upper body 62 and the bottom of the lower body 61 are spaced apart from each other by the partition 61d, and the auxiliary partition 61w is the upper body. It is in close contact with the lower edge of the pressure through-hole (62b) formed through one side of (62). Through this, a guide space k may be formed between the outer surface of the auxiliary partition wall portion 61w and the inner surface of the partition wall portion 61d.

In addition, a plurality of through-holes 62c communicating with the guide space (k) are formed on one side of the pressure weight through-hole (62b) on the upper surface of the upper body portion (62).

On the other hand, the cover part 63 is provided to cover the upper surface of the upper body 62, and the pressure weight exposure hole 63a corresponding to the pressure weight through hole 62b and the through hole 62c on one side of the upper surface part ) A discharge hole 63b corresponding to is formed.

In addition, a rib insertion hole 63c is formed at one end of the cover part 63 and into which an assembly rib 61e protruding from one end of the lower body part 61 is inserted, and both sides of the cover part 63 A hook holding groove 63d is formed on the inner surface to which the assembly hook protrusion 61h is caught.

At this time, when the upper body part 62 is seated on the upper part of the lower body part 61, the cover part 63 is attached to the upper body so that the assembly rib 61e is inserted into the rib insertion hole 63c. As the assembly hook protrusion 61h is elastically inserted into the hook holding groove 63d in a state in which the upper portion of the portion 62 is covered, the lower body portion 61, the upper body portion 62, and the cover portion 63 can be integrally combined.

In addition, referring to FIGS. 4 and 5, assembly grooves 62n are formed at both ends of the upper body 62, and capgos have fixing protrusions 62k protruding from the lower outer surface of the assembly grooves 62n. A government 62f is preferably provided.

In detail, hook wing parts 62g having bent ends are provided at both ends of the cap fixing part 62f. At this time, a wing coupling groove is formed on the inner surface of the assembly groove portion 62n facing the bent end of the hook wing portion 62g so that the hook wing portion 62g is hook-coupled. Here, a slot portion cut in the longitudinal direction may be formed in the hook wing portion 62g to facilitate mounting in the wing coupling groove.

In addition, an elastic member 62h is provided between each hook wing part 62g provided at both ends of the cap fixing part 62f to elastically support the space between the fixing protrusion 62k and the assembly recess 62n. At this time, an elastic member support portion 62j in which an end portion of the elastic member 62h is fixed to prevent separation may be recessed on an inner surface of the cap fixing portion 62f facing the assembly groove portion 62n.

At this time, the fixing protrusion 62k is in close contact with the coupling step 12b by the elastic restoring force of the elastic member 62h, and is hooked to the lower end of the coupling step 12b to fix the steam cap part 60. do.

Here, when the lower body portion 61, the upper body portion 62, and the cover portion 63 are integrally assembled, the coupling rib 61f of the lower body portion 61 is attached to the mounting groove portion 12. After inserting into the lower part of the restraining step 12a, the cover part 63 is pressed toward the mounting groove part 12.

In addition, when the fixing protrusion 62k is hooked to the lower end of the coupling step 12b, the grip protrusion 62r provided on the upper part of the fixing protrusion 62k is seated on the upper end of the coupling step 12b to externally exposed as At this time, when the grip protrusion 62r is pressed inwardly, the fixing protrusion 62k is separated from the lower end of the coupling step 12b in response to the elastic deformation of the elastic member 62h, and the steam cap part 60 ) can be separated from the outer lid portion (10a).

Accordingly, the steam cap part 60 is assembled in an accurate position when the operator presses the grip protrusion 62r inward and inserts the fixing protrusion 62k at the lower end of the coupling step 12b, so assembly is easy. While this is further improved, it can be easily attached to and detached from the lid 10 to facilitate maintenance such as cleaning. Moreover, since both ends of the steam cap part 60 are elastically supported by the elastic member 62h, the strength of the support is reinforced so that the steam cap part 60 can be more stably fixed to the mounting groove part 12.

On the other hand, when the steam cap part 60 is mounted on the mounting groove part 12, the pressure switching means 50 and the solenoid valve 90b are formed in the guide space k formed inside the steam cap part 60. The upper part is placed.

Here, the solenoid valve (90b) is provided in the second through-hole (16b), and as the upper portion is covered by the upper body portion (62), the pressure switching means (50) and the solenoid valve (90b) The discharged steam may flow into the guide space (k).

Here, a plurality of flow rate control ribs 61j and 62d protrude from the upper surface of the bottom of the lower body 61 and the lower surface of the upper body 62. In addition, the steam flowing into the guide space (k) collides with the flow rate control ribs (61j, 62d) and is decelerated to be discharged to the outside through the discharge hole (63b) at the other end of the guide space (k). Accordingly, safety accidents such as burns due to rapid discharge of high-temperature/high-pressure steam or steam discharge noise may be minimized.

In addition, a pressure weight valve 90a may be provided in the third through portion 16c, and the pressure weight valve 90a may be provided along the inside of the third steam flow hole 61c and the pressure weight through hole 62b. Preferably, it is installed to pass through the steam cap part 60. Here, the steam flowing into the pressure weight valve 90a may collide with the inner wall surface of the pressure weight through hole 62b and be discharged to the outside in a reduced state.

In addition, it is preferable that the bottom portion of the lower body portion 61 is inclined downward toward the other side, and a discharge groove portion 61k recessed to pass through the auxiliary partition wall portion 61w is formed on the other side of the bottom portion. .

Here, the discharge groove part 61k is provided with a downward slope from one end of the bottom part toward the auxiliary partition wall part 61w, and an opening 61m is formed at the other end connected to the auxiliary partition wall part 61w. 3 may be in communication with the steam flow hole (61c).

In detail, in the non-pressure cooking mode, rice water or foreign matter discharged together with steam through the hollow of the communication member 51 passes through the opening 61m along the downward slope of the bottom portion and the discharge groove portion 61k, 3 It can be discharged through the steam flow hole (61c).

Accordingly, since it is possible to prevent the narrow gap between the flow control ribs 61j and 62d or the discharge hole 63b from being blocked by foreign substances, the decelerated discharge performance of steam can be stably maintained, and the discharge hole 63b can be stably maintained. Since steam can be prevented from being discharged to a part other than the ball 63b, safety of the product can be improved.

In addition, it is preferable that an auxiliary locking means for locking the locking protrusion 17a protruding from the open end 17 of the lid 10 is provided in the main body (not shown). Accordingly, the closed state of the lid 10 can be stably maintained even in the non-pressure cooking mode in which the locking ring 20 is unlocked and the pressure conversion means 50 is opened. Through this, opening or shaking of the lid 10 due to steam pressure during cooking is prevented, so that the inner pot (not shown) and the inner pot cover can be kept in close contact, and the pressure switching means 50 without leakage of steam from the inner pot. And it can be safely discharged through the steam cap part 60.

On the other hand, referring to FIGS. 1 to 2B, it is preferable that the pressure conversion means 50 includes a communication member 51 and a piston part 52.

Here, the communication member 51 is provided in a hollow cylindrical shape, and a pressure conversion passage 51b is formed therein, and is disposed so as to pass through the lower penetration part 13d. At this time, as the lower end of the communication member is closely coupled to the communication hole 81a, the pressure conversion passage 51b and the inside of the inner pot may communicate with each other.

In detail, a de-cut coupling portion 51c is formed at the lower end of the communication member 51, and the communication hole 81a opposite to the communication member is a de-cut hole processed into a de-cut cross section corresponding to the de-cut coupling portion 51c. It is desirable to have Accordingly, the outer periphery of the de-cut coupling portion 51c is molded and supported by the inner circumference of the de-cut hole, so rotation of the communication member 51 due to steam pressure can be prevented.

At this time, the de-cut coupling part 51c is inserted into the de-cut hole in a state where the sealing O-ring 59 is mounted on the outer circumference, and the communication member cap 58 is inserted on the inner circumference of the de-cut coupling part 51 c inserted into the de-cut hole. is combined

In detail, mutually corresponding threads are formed on the outer circumference of the communication member cap 58 and the inner circumference of the lower end of the communication member 51, and the communication member cap 58 is inserted into the inner circumference of the de-cut coupling portion 51c. After that, it can be rotated and fastened to the lower end of the communication member 51.

In addition, a plurality of steam discharge holes 58b are formed through the communication member cap 58 so that the steam inside the inner pot flows, and a fastening step 58a is formed along the outer circumference to catch the lower edge of the de-cut hole. Here, each of the vapor discharge holes 58b is arranged in a symmetrical shape with respect to the center point of the area of the communication member cap 58 so that the communication member cap 58 can be easily rotated and fastened using snap ring pliers or the like. desirable.

At this time, when the communication member cap 58 is coupled to the de-cut coupling part 51c, the rim of the de-cut hole is engaged between the fastening step 58a and the lower end of the communication member 51, so that the communication member 51 can be fixed, and the lower end of the communication member 51 and the edge of the de-cut hole can be sealed by the sealing O-ring 59. Accordingly, steam inside the inner pot can be stably introduced into the pressure conversion passage 53a without leakage. Here, the communication member cap 58 may be formed integrally with the communication hole 81a of the lead plate 80 .

Of course, as shown in FIG. 6 , the communication member 151 may be fixed to the mounting hole 171a of the control plate 170 . That is, as a screw thread is formed on the outer circumference of the fixed fastening portion 151c provided at the lower end of the communication member 151 and a screw thread is formed on the inner circumference of the mounting hole 171a, the fixed fastening portion 151c It may be fastened to the mounting hole 171a. At this time, it is preferable that an O-ring fixing jaw 151e supported on the rim of the mounting hole 171a is provided on the outer circumference of the upper end of the fixing fastening part 151c, and at this time, the lower part of the O-ring fixing jaw 151e is sealed. When the fixing fastening part 151c is coupled to the inner circumference of the mounting hole 171a while the O-ring 159a is mounted, the space between the communication member 151 and the mounting hole 171a may be sealed.

In addition, a sealing member 159b is disposed at the lower end of the fixed fastening part 151c to seal a gap between the communication hole 181b formed in the lead plate 180 and the edge of the fixed fastening part 151c. Member 151 may be fixed. Accordingly, steam inside the inner pot can stably flow toward the pressure conversion passage without leakage, and the communication member 151 and the pressure response actuating means 90 can be assembled and fixed as one part.

In addition, the communication member may be fixed by being inserted into the mounting hole or the like, and the mounting positions of the sealing O-ring and the sealing member may be changed to prevent steam leakage when the pressure conversion passage and the communication hole communicate. there is.

And, the upper end of the communication member 51 is disposed inside the guide space (k) via the first upper through part 13a, and between the communication member 51 and the upper through part 13a is It is sealed by a tubular sealing member (57).

At this time, the sealing protrusion 57a protruding from the inner circumference of the tubular sealing member 57 is elastically pressurized toward the inside in the radial direction to the outer circumference of the upper end of the communication member 51, and the upper end of the communication member 51 The outer periphery may be supported by the sealing protrusion 57a.

In addition, it is preferable that a pressure conversion hole 51a is formed at the upper end of the communication member 51 so as to face the end when the handle part 11 locks and rotates. At this time, at the upper end of the communication member 51, a stepped surface is formed in which one side of the upper end opposite to the end when the handle part 11 locks and rotates is depressed inward in the radial direction, and the pressure conversion hole 51a is formed. .

Here, the pressure conversion passage 51b of the communication member 51 may communicate with the guide space k of the steam cap part 60 through the pressure conversion hole 51a. Through this, steam discharged from the inside of the inner pot can be introduced into the guide space (k) through the pressure conversion passage (51b) and the pressure conversion hole (51a), and the steam introduced into the guide space (k) It may be guided and discharged to the outside through the through hole 62c and the discharge hole 63b.

And, referring to FIGS. 2A to 4 , the piston part 52 is pressurized when the handle part 11 locks and rotates to selectively close the pressure conversion hole 51a to the pressure conversion hole 51a. Opposite arrangement is preferred. Here, the piston part 52 is disposed between the handle part 11 and the communication member 51, and includes a piston body part 53 and a piston holder part 54.

In detail, the pressure conversion hole 51a may have a circular shape, and the piston body 53 may have a cylindrical shape corresponding to the diameter of the pressure conversion hole 51a. In addition, the piston body portion 53 is provided to pass through the piston guide hole 62e formed at the other end of the upper body portion 62, and extends such that the other end is selectively inserted into the pressure conversion hole 51a. is formed That is, one end of the piston body portion 53 is disposed opposite to the end during lock rotation of the handle portion 11, and the other end is disposed opposite to the pressure conversion hole 51a, and the pressure conversion hole 51a and The piston guide holes 62e are disposed on mutually corresponding axes.

In addition, a coupling groove 53e is formed at one end of the piston body 53 to correspond to the coupling groove 54f formed in the central portion of the piston holder 54.

At this time, mutually corresponding threads may be formed on the inner circumference of at least one of the fastening groove 54f and the coupling groove 53e and the outer circumference of the coupling member 54g. Also, the coupling member 54g may be rotationally coupled to the coupling groove 54f and the coupling groove 53e so that the piston body 53 and the piston holder 54 are coupled. Of course, it is also possible that the piston body 53 and the piston holder 54 are integrally provided.

On the other hand, referring to FIG. 3, the handle part 11 extends from the center of rotation to one side, and at the end of the deflected extension, a rounded protrusion overlaps with the movement trajectory of the piston part 52 during locking rotation. It is preferable that the push surface 11a is formed. Here, the movement trajectory of the piston part 52 is preferably understood as a trajectory in which the piston part 52 linearly moves to one side and the other side in response to the elastic restoring force of the elastic member 54d.

At this time, the handle part 11 is extended so that the push surface 11a contacts the other end of the piston holder part 54 and pressurizes and restrains the piston part 52 in a state in which the locking rotation is completed.

In addition, at the other end of the piston holder part 54 opposite to the push surface 11a, a handle protrudes in a rounded manner so as to be in sliding contact with the push surface 11a when the handle part 11 is locked and unlocked. It is preferable that the contact surface 54a is formed. Accordingly, since the push surface 11a and the handle contact surface 54a slide into contact with each other, the user can easily manipulate the handle with little force, thereby improving operability.

Here, the push surface 11a is formed in an arc-shaped profile with a radius of curvature decreasing toward both sides in the circumferential direction from the maximum protrusion 11c in contact with the handle contact surface 54a when the handle part 11 locks and rotates. desirable. At this time, the remaining portion of the pushing surface 11a except for the maximum protrusion 11c may deviate from the rotational trajectory 11b of the maximum protrusion 11c. Through this, the piston part 52 can be pressurized and constrained only by the maximum protrusion 11c when the handle part 11 locks and rotates, and the piston body part ( 54) may be inserted into the pressure conversion hole 51a.

Meanwhile, referring to FIGS. 2A to 3 , it is preferable that a first sealing member 53b and a second sealing member 53d are provided on the outer circumference of the piston body 53 . In detail, the first sealing member 53b and the second sealing member 53d are provided in a ring shape to surround the outer circumference of the piston body 53, and are preferably made of silicone rubber or heat-resistant synthetic rubber. .

At this time, it is preferable that the first sealing member 53b is placed in close contact with the rim of the pressure conversion hole 51a when the handle part 11 locks and rotates. In addition, the second sealing member 53d is preferably spaced apart from each other according to the distance D1 between the pressure conversion hole 51a and the piston guide hole 62e when the handle part 11 locks and rotates. That is, the distance D3 between the first sealing member 53b and the second sealing member 53d may be set to correspond to the distance D1 between the pressure conversion hole 51a and the piston guide hole 62e. can

In addition, the first sealing member 53b and the second sealing member 53d may be mounted on sealing member mounting portions 53a and 53c formed along the outer circumference of the piston body 53, respectively. Through this, the first sealing member 53b and the second sealing member 53d maintain the piston body 53 even in a state in which the piston part 52 is pressurized and constrained by the locking rotation of the handle part 11. ) can be prevented from escaping. Accordingly, in the piston part 52, the first sealing member 53b and the second sealing member 53d are tightly adhered to the edges of the pressure conversion hole 51a and the piston guide hole 62e. Sealing performance can be further improved.

In this way, the first sealing member 53b comes into close contact with the rim of the pressure conversion hole 51a as the piston part 52 is constrained when the handle part 11 locks and rotates, and the communication member 51 is sealed so that food can be cooked under pressure.

In addition, since the second sealing member 53d adheres to the rim of the piston guide hole 62e when the handle part 11 locks and rotates, the steam inside the inner pot discharged through the solenoid valve 90b when cooking is finished Leakage between the piston guide hole 62e and the piston body 54 is prevented, so safety accidents such as burns can be prevented.

Furthermore, when the handle part 11 is unlocked after cooking in the pressure cooking mode is completed, the communication member 51 is opened to remove the remaining pressure inside the inner pot, so a separate device for removing the remaining pressure is not required. Therefore, the manufacturing cost can be reduced and the economic feasibility can be improved.

On the other hand, at both ends of the piston holder 54, holder extensions 54b are formed extending to correspond to the positions of the guide grooves 62m formed at both ends of the upper body 62. At this time, the piston body portion 54 can be aligned corresponding to the exact position where the holder extension portion 54b is inserted into the pressure conversion hole 51a as long as the holder extension portion 54b is inserted into the guide groove 62m.

Here, an elastic member 54d is provided between the elastic member mounting portion 54c formed at the end of the holder extension portion 54b and the guide groove 62m to elastically support the piston holder portion 54. Through this, the piston unit 52 can linearly move to one side and the other side in response to the elastic restoring force of the elastic member 54d.

In addition, an engaging hook protrusion 54e protrudes from an end of the holder extension 54b to prevent the piston unit 52 from being separated when the elastic member is elastically restored. When the piston part 52 linearly moves from the other side to one side, the anti-separation projection 62w on which the locking hook projection 54e is caught protrudes.

At this time, it is preferable that the locking hook protrusion 54e is provided so as to be spaced apart from the separation prevention protrusion 62w by a gap D1 or more between the pressure conversion hole 51a and the piston guide hole 62e. In detail, when the handle part 11 is unlocked and rotated, the piston part 52 is formed at a distance D1 between the pressure conversion hole 51a and the piston guide hole 62e by the elastic restoring force of the elastic member 54d. ) is moved from the other side to one side in response to

Here, the holder extension part 54b is such that the locking hook protrusion 54e is spaced apart from the separation prevention protrusion 62w by a distance D1 or more between the pressure conversion hole 51a and the piston guide hole 62e. extension is formed. Therefore, the distance D2 between the hook hook protrusion 54e and the separation preventing protrusion 62w may be set to be equal to or greater than the distance D1 between the pressure conversion hole 51a and the piston guide hole 62e.

At this time, in the first sealing member 53b, the distance D1 between the pressure conversion hole 51a and the piston guide hole 62e is the distance between the hook protrusion 54e and the separation prevention protrusion 62w ( D2), the locking hook protrusion 54e will come into close contact with the rim side of the piston guide hole 62e opposite to the pressure conversion hole 51a before being caught and restrained by the separation prevention protrusion 62w. can That is, the first sealing member 53b may alternately come into close contact with the edges of the pressure conversion hole 51a and the piston guide hole 62e when the handle part 11 is locked and unlocked.

Through this, the first sealing member 53b seals the piston guide hole 62e when the handle part 11 unlocks and rotates, so that steam discharged through the communication member 51 passes through the guide space (k). ) and can be discharged only through the discharge hole 63b.

Accordingly, since the steam discharged through the communication member 51 is discharged through the discharge hole 63b, not only the flow rate and noise are significantly reduced, but also the steam discharged between the piston guide hole 62e and the piston body 54. Safety accidents such as burns can be prevented by preventing leakage. Moreover, since the number of parts is reduced since no separate parts are required to adhere to the rim of the piston guide hole 62e when the handle part 11 unlocks and rotates, the productivity and assembling properties of the product can be remarkably improved.

As such, since the non-pressure cooking mode for cooking requiring no pressure and the pressure cooking mode for cooking requiring high pressure such as pressure cooking can be easily switched according to the opening and closing of the pressure switching means 50, a variety of various cooking modes can be switched with one device. The recipe can be used freely, and cooking according to the user's taste, such as the chewy texture unique to pressured rice and the soft texture unique to non-pressured rice, can improve product compatibility and cooking quality.

Furthermore, in the non-pressure cooking mode, since the pressure safety device 90c such as the pin safety device is not operated, the lid 10 can be freely opened and closed, so that additional ingredients can be added or the cooking status can be easily checked during cooking. Ease of use can be improved.

In addition, since the open/closed state of the pressure switching means 50 is switched simply by rotating the handle part 11, the non-pressure cooking mode and the pressure cooking mode can be easily selected and used, so that the usability of the product can be remarkably improved.

In addition, by simply rotating the handle part 11 in the unlocking direction, the steam inside the inner pot can be quickly discharged through the wide passage inside the pressure conversion means 50, minimizing steam discharge noise generated during the cooking process. It can be.

That is, in the pressure cooking mode, residual steam inside the inner pot after cooking is discharged through the narrow passage of the solenoid valve 90b, and noise generated can be removed. In the non-pressure cooking mode, the pressure weight valve 90a is unique during cooking. Since the noise of steam discharge can be eliminated, the quietness of the product can be improved.

On the other hand, referring to FIGS. 1 to 7, it is preferable that the locking ring 20 is provided with a pair of markers 22a and 22b spaced apart from each other in the locking rotational direction and the opening rotational direction to mark the rotational angle.

At this time, the markers 22a and 22b may be provided with permanent magnets, etc., and a pair of sensor parts 18a and 18b are provided in the inner lid part 10b to detect the magnetic force of each of the markers 22a and 22b. are provided

In detail, the first sensor unit 18a and the second sensor unit 18b are installed on the upper surface of the inner lid unit 10b along the turning trajectories of the respective markers 22a and 22b, and the first sensor unit (18a) is disposed corresponding to the position of the first marker 22a in the locking rotation direction when the locking ring 20 is locked, and the second sensor unit 18b is provided when the locking ring 20 is unlocked. It is arranged corresponding to the position of the second marker 22b in the direction of opening rotation.

At this time, when the locking ring 20 is locked, the first sensor unit 18a senses the magnetic force of the first marker 22a and transmits a detection signal, and when the locking ring 20 is unlocked, the first sensor unit 18a detects the magnetic force of the first marker 22a and transmits a detection signal. The second sensor unit 18b detects the magnetic force of the second marker 22b and transmits a detection signal.

And, when the handle part 11 is rotated so that the locking ring 20 is locked, the pressure conversion means 50 is closed in conjunction with the rotation of the handle part 11, and the locking ring 20 is locked. When the handle part 11 is rotated to be released, the pressure conversion means 50 is opened.

At this time, the detection signal of each of the sensor units 18a and 18b is transmitted to the control unit 19a, and the control unit 19a receives the detection signal of at least one of the sensor units 18a and 18b to the main body (not shown). ) to activate the power supply.

That is, when the power supply of the main body (not shown) is activated, the heating means 19c for heating the inner pot (not shown) may be driven according to a cooking command input to the control panel 19b provided in the main body. . Accordingly, food stored in the inner pot can be cooked in each of the pressure cooking mode in which the pressure conversion means 50 is closed and the non-pressure cooking mode in which the pressure conversion means 50 is open.

And, it is preferable that the control unit 19a controls power supply to the main body (not shown) to be deactivated when the detection signal is not received. Accordingly, the main body (only when the locking ring 20 is locked and the pressure conversion means 50 is completely closed, or the locking ring 20 is unlocked and the pressure conversion means 50 is completely opened). Power supply to (not shown) may be activated.

That is, it is possible to prevent food from being cooked while the pressure conversion unit 50 is partially open or closed, and thus, deterioration in cooking quality and occurrence of safety accidents can be prevented.

As described above, the present invention is not limited to the above-described embodiments, and it is possible to modify and implement the present invention by those skilled in the art without departing from the scope claimed in the claims of the present invention. and such modifications are within the scope of the present invention.

100: electric cooker 10: lid
11: handle part 11a: push surface
20: locking ring 30: handle base
50: pressure conversion means 51,151: communication member
60: steam cap part 61: lower body part
62: upper body part 63: cover part
70,170: control plate 80,180: lead plate
90: pressure response operation means

Claims (15)

A body in which the inner pot is accommodated;
a lid coupled to the upper part of the main body to be opened and closed, and having a handle part interlocked with an inner pot locking means for locking the inner pot on one side of the upper surface; and
It includes a communication member through which the lower end communicates with the inside of the inner pot through the lid, and a pressure switching means including a piston unit that is pressurized as the handle part rotates and selectively seals the upper end of the communication member,
On the other side of the upper surface of the lid, a steam cap portion having a guide space formed inside is detachable so that the steam introduced in communication with the pressure conversion means is guided and discharged to the outside.
The piston part penetrates the piston guide hole formed at the other end of the steam cap part and is inserted into the pressure conversion hole of the communication member, and the piston body part is fixed to the central part and the holder extension part formed at both ends is fixed to the steam cap part. An electric cooker comprising a piston holder part inserted into the guide groove of the part and supported by elastic. According to claim 1,
An electric cooker, characterized in that a round protruding push surface is formed at an end of the handle part so as to overlap with a movement trajectory of the piston part during lock rotation. According to claim 2,
The electric cooker, characterized in that the push surface is formed in an arc-shaped profile with a curvature radius decreasing toward both sides in a circumferential direction from the largest protrusion contacting the piston part when the handle part locks and rotates. According to claim 1,
The electric cooker, characterized in that a pressure conversion hole is formed at the upper end of the communication member to face the end when the handle part is locked and rotated. delete delete According to claim 1,
The other end of the piston holder part is rounded to make sliding contact with the maximum protrusion of the push surface protruding roundly from the end of the handle part so as to overlap with the movement trajectory of the piston part during locking and unlocking rotation of the handle part. cooker. According to claim 1,
On the outer circumference of the piston body
A first sealing member alternately adhered to the edges of the pressure conversion hole and the piston guide hole during locking and unlocking rotation of the handle unit is provided,
and a second sealing member spaced apart from the first sealing member corresponding to a gap between the pressure conversion hole and the piston guide hole so as to come into close contact with the rim of the piston guide hole when the handle part locks and rotates. According to claim 1,
A hook protrusion that is caught on the rim of the guide groove protrudes from the holder extension part when the handle part is unlocked and rotated,
The electric cooker according to claim 1, wherein the catching hook protrusion is provided so as to be spaced apart from the rim of the guide groove by a distance greater than or equal to a gap between the pressure conversion hole and the piston guide hole. According to claim 1,
On one side of the upper surface of the lid, a recessed mounting groove is formed to insert the steam cap,
The electric cooker, characterized in that the cap fixing part hooked to the edge of the mounting groove part is hooked to both ends of the steam cap part and elastically supported by an elastic member. According to claim 1,
The steam cap part
A lower body portion in which a steam flow hole corresponding to each upper through portion formed in the lid is formed on the bottom portion and a partition wall protrudes along the rim of the bottom portion;
An upper body portion having a packing groove in which a sealing member is mounted is formed along a lower surface corresponding to the partition wall portion and seated at an upper end of the partition wall portion, and a through hole is formed on one side of the upper surface portion;
An electric cooker comprising a cover portion coupled to the lower body portion, wherein a discharge hole is formed to correspond to the through hole to cover the upper body portion. According to claim 1,
The electric cooker according to claim 1, further comprising a pressure response operating means that is selectively opened and closed according to a pressure level inside the inner pot in a pressure cooking mode in which the pressure conversion means is closed. According to claim 12,
The pressure response actuation means is
A solenoid valve that opens and closes according to an electrical signal;
An electric cooker comprising a pressure weight valve equipped with a weight that moves up and down according to the steam pressure inside the inner pot. According to claim 12,
A control plate provided on the lower surface of the lid and having a plurality of mounting holes in which the pressure conversion means and the pressure response operating means are assembled, fixed, and supported;
Further comprising a lead plate covering the lower surface of the control plate and having a plurality of communication holes corresponding to the mounting holes,
The electric cooker, characterized in that the lower end of the communication member is provided with a fixed fastening portion screwed to the inner circumference of the mounting hole. According to claim 1,
The lower end of the communication member is provided with a de-cut coupling portion molded and inserted into a de-cut hole formed in a lead plate covering the lower surface of the lid,
The electric cooker, characterized in that the steam discharge hole is formed through the de-cut coupling portion, and a communication member cap having a fastening step engaging the lower edge of the de-cut hole is fastened to the outer circumference.

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