CN210408053U

CN210408053U - Electric cooker

Info

Publication number: CN210408053U
Application number: CN201920603318.7U
Authority: CN
Inventors: 袁荣恩; 区勤长
Original assignee: Jiangmen Nanguang Electrical Appliance Industrial Co ltd
Current assignee: Jiangmen Nanguang Electrical Appliance Industrial Co ltd
Priority date: 2019-04-28
Filing date: 2019-04-28
Publication date: 2020-04-28
Anticipated expiration: 2029-04-28

Abstract

The utility model discloses an electric cooker, include: the cooker cover comprises an inner cover and an outer cover, wherein an opening is formed in the inner cover, an electric heating element and a fan assembly used for blowing heat generated by the electric heating element to the opening are arranged between the inner cover and the outer cover; the mounting plate is fixed at the opening position and is provided with a plurality of through holes; the isolation cover is detachably connected to the mounting plate; the sealing ring is arranged between the clearance between the isolation cover and the edge of the opening and is used for realizing the sealing connection between the isolation cover and the opening; and one end of the connecting rod extends out of the through hole, and the other end of the connecting rod is connected with an isolation cover switch used for generating a first signal. The utility model discloses an electric cooker can be used for realizing whether the electric elements of the fried function of air seals in the automated inspection pot cover when cooking, improves electric cooker's security performance.

Description

Electric cooker

Technical Field

The utility model relates to a cooking utensil technical field, in particular to electric cooker.

Background

The electric cooker has the function of cooking rice and is a cooking utensil which is almost necessary for every family. With the improvement of living standard of people, in order to meet the cooking requirement of more tastes, special cooking appliances need to be purchased additionally. For example, in order to realize the air-frying function, consumers generally need to purchase commercially available air-frying pans, which are not frequently used as electric cookers for cooking, and thus occupy the storage space of the kitchen, which is inconvenient.

Therefore, cooking appliances compatible with the air frying function and the cooking function appear in the market, and not only can the secondary processing be carried out on the food cooked by the multifunctional rice cooker by utilizing the air frying cover; or the fresh food can be put in the inner container, and the air frying function can be directly used for cooking the food. The electric elements (including electric heating elements and fan components) for realizing the air-frying function are generally arranged at the inner side of the cooker cover for providing hot air for the food in the inner container. When a consumer cooks rice, if the electric heating element in the pot cover is not sealed, steam generated by cooking rice can easily directly invade the electric element, so that a circuit is short-circuited, and safety accidents are caused. Therefore, how to provide a structure for preventing misoperation to prevent the electric elements in the pot cover for realizing the air frying function from being damaged by water vapor generated during cooking becomes a problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide an electric cooker, can be when cooking whether the electric elements who is used for realizing the fried function of air seals in the automated inspection pot cover, improve the security performance of electric cooker.

An electric cooker comprising:

the cooker cover comprises an inner cover and an outer cover, wherein an opening is formed in the inner cover, an electric heating element and a fan assembly used for blowing heat generated by the electric heating element to the opening are arranged between the inner cover and the outer cover;

the mounting plate is fixed at the opening position and is provided with a plurality of through holes;

the isolation cover is detachably connected to the mounting plate;

the sealing ring is arranged between the clearance between the isolation cover and the edge of the opening and is used for realizing the sealing connection between the isolation cover and the opening;

and one end of the connecting rod extends out of the through hole, and the other end of the connecting rod is connected with an isolation cover switch used for generating a first signal.

Has the advantages that: an electric heating element and a fan component are arranged in a cooker cover of an electric cooker for cooking, hot air is blown into an inner container of a cooker body, and the air frying function of food in the inner container is realized. In order to prevent the electric heating element and the fan component from being damaged by water vapor generated during cooking, the isolating cover is arranged and seals the opening of the inner cover through the sealing ring, so that the water vapor is prevented from entering. Because one end of the connecting rod extends out of the through hole of the mounting plate, when the rice cooking function is performed, the isolation cover needs to be mounted on the mounting plate through the bolt assembly or the silica gel connecting sleeve and seals the opening, at the moment, the isolation cover can jack the connecting rod to trigger the isolation cover switch, the controller arranged in the pot body allows the rice cooking function according to the state of the first signal, the air frying function is forbidden, namely, the circuits of the electric heating element and the fan assembly are disconnected, and the circuit of the heating plate is connected; when the air frying function is carried out, the isolation cover needs to be detached, the connecting rod loses the thrust of the isolation cover, the other end of the connecting rod does not trigger the isolation cover switch, the state of a first signal sent by the isolation cover switch is changed, the controller forbids the cooking function according to the state of the first signal, and simultaneously the air frying function is allowed to be carried out, namely, a heating disc circuit is disconnected, and the electric heating element and a fan assembly circuit are connected. Therefore, the utility model provides an electric cooker through the cage under the dismouting state, causes the corresponding mechanical state of connecting rod to change the state of the first signal of cage switch output, make the controller of electric cooker can accurately judge the installation state of cage, thereby intelligent control cooks and the break-make of air fried relevant function circuit, has avoided artificial misoperation, has promoted the security that electric cooker used.

As a further improvement of the above scheme, the pot further comprises a pot body, wherein the pot body comprises an outer pot and an inner container arranged in the outer pot, the outer pot is provided with a first connecting part, the pot cover is provided with a second connecting part rotatably connected with the first connecting part, and the first connecting part is provided with a cover closing switch used for generating a second signal. The cover closing switch is used for sensing whether the pot cover is covered or not, so that the phenomenon that when the air frying function is used, the pot cover is opened by mistake and hot air blows to a human body to cause personal injury is avoided.

As a further improvement of the above scheme, the isolation cover switch and the cover closing switch are both microswitches. The micro switch increases the sensitivity of triggering, and ensures that the first signal and the second signal can change states rapidly, thereby improving the safety performance.

As a further improvement of the scheme, the connecting rod structure further comprises a spring which is sleeved outside the connecting rod and used for providing restoring force for the connecting rod in the direction below the mounting plate. Use the spring to provide the restoring force, guarantee when dismantling the cage from the mounting panel, the one end of connecting rod can in time reply the position of through-hole, and the other end of connecting rod can in time leave the position that triggers the cage switch promptly, changes the state of first signal, promotes to use and experiences.

As a further improvement of the above scheme, the isolation cover is detachably connected to the mounting plate through a bolt assembly, the bolt assembly comprises a stud and a nut matched with the stud, the stud comprises a threaded portion and a handle portion, the nut is fixed at the center of the mounting plate, and a through hole for the stud to pass through is formed in the center of the isolation cover. The nut is fixed in the center of the mounting plate, the isolation cover can be locked only by penetrating the stud through the through hole of the isolation cover to be meshed with the nut, and the isolation cover is convenient to mount and dismount.

As the further improvement of above-mentioned scheme, the cage passes through silica gel adapter sleeve detachably and connects on the mounting panel, be provided with the projection on the mounting panel, silica gel adapter sleeve sets up on the cage, silica gel adapter sleeve is equipped with and is used for matcing the centre bore of installation with the projection. The center hole through the silica gel adapter sleeve is tightly overlapped on the convex column of mounting panel, only need when with the cage dismouting on the mounting panel through the push-and-pull alright realize, convenience of customers uses.

As a further improvement of the scheme, a plurality of grooves for water vapor to pass through are arranged at the position where the edge of the inner container is abutted to the inner cover. The groove for supplying water vapor to pass through is arranged at the edge of the inner container, the structure of discharging water vapor is not required to be added on the pot cover, and the structure of the pot cover is optimized.

As a further improvement of the scheme, the pot cover is also provided with a temperature controller. Set up the temperature controller and realize temperature control, promote to use and experience.

As a further improvement of the scheme, the pot cover is further provided with a fuse, the fan assembly comprises a motor and fan blades driven by the motor, and the motor is connected with the electric heating element in parallel and then connected with the fuse in series. The fuse is arranged, so that overcurrent automatic protection is realized, and the safety is improved.

As a further improvement of the scheme, a temperature sensor and a heating disc for providing heat for the inner container are arranged in the outer pot. The temperature sensor is arranged, so that the temperature can be fed back in time when the heating plate is conveniently used for cooking, and a better cooking effect is realized.

Drawings

The present invention will be further described with reference to the accompanying drawings and examples;

fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a cross-sectional view of the structure of an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at B;

fig. 5 is a schematic circuit diagram of an embodiment of the present invention;

in the figure, 100-pot body, 110-outer cover, 111-first connecting part, 112-circuit accommodating cavity, 120-display, 130-outer pot, 131-heating plate, 140-inner container, 200-pot cover, 210-inner cover, 211-sealing strip, 220-outer cover, 221-second connecting part, 230-supporting cover, 231-vent hole, 310-isolating cover, 320-mounting plate, 321-through hole, 330-connecting rod, 331-spring, 340-isolating cover switch, 350-stud, 351-handle part, 352-thread part, 360-nut, 370-electric heating element, 380-fan component, 381-motor, 382-fan blade, 390-temperature controller, 400-cover closing switch, 510-temperature sensor, 520-power module, 530-first relay, 540-second relay, 550-fuse, U1 are controllers.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 3, 4 and 5, an electric cooker includes a controller U1, a cooker cover 200, a mounting plate 320, a shielding case 310, a sealing ring and a connecting rod 330; the pot cover 200 comprises an inner cover 210 and an outer cover 220, wherein an opening is formed in the inner cover 210, an electric heating element 370 and a fan assembly 380 for blowing heat generated by the electric heating element 370 to the opening are arranged between the inner cover 210 and the outer cover 220, the electric heating element 370 comprises an electric heating wire or a resistance wire, a support cover 230 for supporting the fan assembly 380 is arranged between the inner cover 210 and the outer cover 220, and a vent hole 231 is formed in the side wall of the support cover 230; the mounting plate 320 is fixed at the opening position, and a plurality of hot air passing through holes 321 are formed in the mounting plate 320; the shielding case 310 is detachably connected to the mounting plate 320 by a bolt assembly; the sealing ring is arranged between the isolation cover 310 and the gap of the edge of the opening and used for realizing the sealing connection between the isolation cover 310 and the opening; one end of the connecting rod 330 extends out of the through hole 321, and the other end is connected to a shielding switch 340 for generating a first signal. The first signal sent by the isolation hood switch 340 comprises two states, when the isolation hood 310 is installed on the installation plate 320, the connecting rod 330 is jacked up by the isolation hood 310, the isolation hood switch 340 is triggered by the connecting rod 330, and the first signal is in a connection state; conversely, when the cage 310 is removed from the mounting plate 320, the first signal is in the off state. The isolation cover switch 340 is connected with a receiving end of the controller U1, according to the received first signal, a sending end of the controller U1 sends a corresponding control signal to the relay, and the relay controls the on-off of the electric heating element 370, the motor 381 and the circuit of the heating plate 131, so that the installation state of the isolation cover 310 is related to the air frying function and the rice cooking function, and safety accidents caused by manual misoperation are avoided.

On the basis of the above embodiments, referring to fig. 1 to 4, the pot further includes a pot body 100, the pot body 100 includes an outer pot 130 and an inner pot 140 disposed in the outer pot 130, the outer pot 130 is provided with a first connecting portion 111, the pot cover 200 is provided with a second connecting portion 221 rotatably connected to the first connecting portion 111, the first connecting portion 111 and the second connecting portion 221 are rotatably connected by a hinge or a bearing, for example, the first connecting portion 111 is provided with a bearing, the second connecting portion 221 is provided with a rotating shaft, so that the first connecting portion 111 and the second connecting portion 221 are rotatably connected, that is, the pot cover 200 and the pot body 100 are directly rotatably connected. The first connecting part 111 is provided with a cover closing switch 400 for generating a second signal, the cover closing switch 400 is connected with a receiving end of the controller U1, the cover closing switch 400 is arranged on the first connecting part 111, when the pot cover 200 rotates and closes, the second connecting part 221 presses the cover closing switch 400, the cover closing switch 400 is triggered, the state of the generated second signal changes, and a sending end of the controller U1 sends a corresponding control signal to the relay to control the on-off of circuits of the electric heating element 370, the motor 381 and the heating plate 131. Therefore, the cover closing switch 400 is used for sensing whether the pot cover 200 is covered or not, and avoids the situation that when the air frying function is used, the pot cover 200 is opened by mistake, hot air blows to a human body, and personal injury is caused.

On the basis of the above embodiment, in order to improve the real-time property of the state change of the first signal and the second signal, both the isolation cover switch 340 and the cover closing switch 400 are microswitches. The micro switch increases the sensitivity of triggering, and ensures that the first signal and the second signal can change states rapidly, thereby improving the safety performance.

On the basis of the above embodiment, referring to fig. 4, a spring 331 is further included, which is sleeved outside the connecting rod 330 and is used for providing the connecting rod 330 with a restoring force in a direction below the mounting plate 320, specifically, one end of the spring 331 is fixedly connected to the outer cover 220, the other end of the spring 331 is fixedly connected to the connecting rod 330, the spring 331 provides the connecting rod 330 with a restoring force in a direction below the mounting plate 320, and one end of the spring 331 is forced to extend out of the through hole 321. The restoring force is provided by the spring 331, so that when the isolation cover 310 is detached from the mounting plate 320, one end of the connecting rod 330 can timely return to the position of the through hole 321, namely, the other end of the connecting rod 330 can timely leave the position of the trigger isolation cover switch 340, the state of the first signal is changed, and the use experience is improved. In another embodiment, the connecting rod 330 is vertically arranged, that is, one end of the connecting rod 330 is higher than the other end, and after the isolation cover 310 is detached, the lower end of the connecting rod 330 is extended out of the through hole 321 by gravity and the upper end stops triggering the isolation cover switch 340. The spring 331 provides a restoring force that is more stable than the gravity provides a restoring force for the link 330.

On the basis of the above embodiment, referring to fig. 4, in order to facilitate the detachment and installation of the isolation cover 310, the bolt assembly includes a stud 350, and a nut 360 matched with the stud 350, the stud 350 includes a threaded portion 352 and a handle portion 351, the nut 360 is fixed at the center of the mounting plate 320, the center of the isolation cover 310 is provided with a through hole for the stud 350 to pass through, and the diameter of the handle portion 351 is larger than that of the through hole. The nut 360 is fixed at the center of the mounting plate 320, and the isolation cover 310 can be locked only by penetrating the stud 350 through the through hole of the isolation cover 310 to be meshed with the nut 360, so that the isolation cover 310 can be conveniently mounted and dismounted. Generally, the openings are circular in shape, and the corresponding mounting plate 320 and cage 310 are circular in shape, so the center refers to the center of the circle.

In addition to the above embodiments, referring to fig. 3, a plurality of grooves (not shown) for allowing water vapor to pass through are formed at a position where the edge of the inner container 140 abuts against the inner lid 210, and a sealing strip 211 is installed at the edge of the inner lid 210. The groove for supplying water and steam is arranged at the edge of the inner container 140, the structure of draining steam is not required to be added on the pot cover 200, and the structure of the pot cover 200 is optimized.

On the basis of the above embodiments, referring to fig. 1 to 4, the outer wall of the outer pot 130 is provided with the outer cover 110, the first connecting portion 111 is arranged at the top end of the outer cover 110, a line accommodating cavity 112 through which a power supply line passes is formed between the outer cover 110 and the outer wall of the outer pot 130, the controller U1 is arranged in the line accommodating cavity 112, signal lines connected with the controller U1 on the electric heating element 370 and the motor 381 on the pot cover 200 sequentially pass through the second connecting portion 221 and the first connecting portion 111 through flat cables to reach the line accommodating cavity 112 to be connected with the controller U1, and power supply lines for supplying power to the electric heating element 370 and the motor 381 enter the pot cover 200 through the first connecting portion 111 and the second connecting portion 221. The electric wires connected with the electric heating element 370 and the fan assembly 380 in the cover 200 are connected with the controller U1 and other electronic elements in the pot body 100 through the wire accommodating cavity 112, thereby simplifying the arrangement structure of the internal wires of the pot body 100.

As shown in fig. 5, on the basis of the above embodiment, in order to improve the air-frying effect, the pot cover 200 is further provided with a temperature controller 390, the temperature controller 390 may adopt the temperature controller 390 connected in series with the electric heating element 370 as shown in fig. 5, or adopt an NTC electronic temperature control manner, which does not need to adopt a temperature control element connected in series with the electric heating element 270, and is more convenient to install. Temperature controller 390 is set to realize temperature control, and the use experience is promoted.

As shown in fig. 5, on the basis of the above embodiments, the pot cover 200 is further provided with a fuse 550, the fan assembly 380 includes a motor 381 and a fan blade 382 driven by the motor 381, and the motor 381 is connected in parallel with the electric heating element 370 and then connected in series with the fuse 550. Fuse 550 is set up, realizes overtemperature automatic protection, promotes the security.

As shown in fig. 5, preferably, a temperature sensor 510 and a heating plate 131 for providing heat to the inner container 140 are disposed inside the outer pot 130. The temperature sensor 510 is arranged, so that the temperature can be fed back in time when the heating plate 131 is conveniently used for cooking, the temperature can be conveniently controlled, and a better cooking effect can be realized. Specifically, as shown in fig. 1 to 5, the outer wall of the outer pot 130 is further provided with a display 120, the display 120 is connected with the output end of the controller U1 for displaying a signal output by the controller U1, the controller U1 includes a 51-chip microcomputer or a pic-chip microcomputer in type, and further includes a power module 520 for converting alternating current into direct current and supplying power to the controller U1, the cover closing switch 400, the isolation cover switch 340 and the temperature sensor 510 are all connected to the input end of the controller U1, the output end of the controller U1 is connected with a first relay 530 and a second relay 540, wherein the first relay 530 is used for controlling the on-off of the heating plate 131 and controlling the rice cooking function; the second relay 540 is used for controlling the on-off of the motor 381 and the electric heating element 370, and controlling the air-blast function. The circuit structure is matched with the mechanical structure of the electric cooker, and the working process is as follows:

the stud 350 is screwed by holding the handle portion 351 of the stud 350, the isolation cover 310 is detached, the lower end of the connecting rod 330 is not pushed by the isolation cover 310, the lower end of the connecting rod 330 extends out of the through hole 321 under the action of the restoring force of the spring 331, the upper end of the connecting rod 330 is separated from the isolation cover switch 340, and the first signal received by the controller U1 is in an off state: at this time, if the pot cover 200 is closed and the second signal is in an on state, the controller U1 controls the first relay 530 to disconnect the circuit of the heating plate 131 and controls the second relay 540 to connect the circuits of the motor 381 and the electric heating element 370, so as to realize the air explosion function; at this time, if the lid 200 is opened and the second signal is in an off state, the controller U1 controls the first relay 530 to open the circuit of the heat generating plate 131 and controls the second relay 540 to open the circuit of the motor 381 and the electric heating element 370.

The stud 350 is screwed through the through hole to tighten the isolation cover 310 by holding the handle part 351 of the stud 350, the isolation cover 310 jacks up the lower end of the connecting rod 330, the isolation cover switch 340 is triggered by the upper end of the connecting rod 330, the first signal received by the controller U1 is in an on state, the controller U1 controls the first relay 530 to switch on the circuit of the heating plate 131, and controls the second relay 540 to switch off the circuit of the motor 381 and the electric heating element 370.

In another embodiment, in order to further promote the convenience of user's dismouting cage 310, cage 310 passes through silica gel adapter sleeve (not shown in the figure) detachably and connects on mounting panel 320, be provided with projection (not shown in the figure) on mounting panel 320, silica gel adapter sleeve sets up on cage 310, silica gel adapter sleeve is equipped with and is used for the centre bore of matcing the installation with the projection. Specifically, in order to guarantee that the silica gel adapter sleeve can be with stable the fixing on mounting panel 320 of cage 310, the silica gel adapter sleeve and be a plurality ofly with the quantity of the centre bore assorted projection of silica gel adapter sleeve, the even setting of a plurality of projections is in the bottom of mounting panel 320, and the aperture of centre bore is less than the diameter of projection, because the silica gel adapter sleeve has elasticity, consequently can guarantee that the projection can insert in the centre bore, and the centre bore can press from both sides tight projection, thereby fix cage 310 on mounting panel 320 through the silica gel adapter sleeve. By adopting the embodiment, the isolation cover 310 is detachably connected to the mounting plate 320, so that the isolation cover 310 is greatly convenient for a user to disassemble and assemble, and the user experience is improved.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. An electric cooker, characterized in that it comprises:

the isolation cover is detachably connected to the mounting plate;

2. An electric cooker as claimed in claim 1, characterized in that: still including the pot body, the pot body is including outer pot and the inner bag of setting in outer pot, outer pot is provided with first connecting portion, the pot cover be provided with first connecting portion rotate the second connecting portion of connecting, first connecting portion are provided with the switch that closes that is used for producing the second signal.

3. An electric cooker as claimed in claim 2, characterized in that: the isolation cover switch and the cover closing switch are both microswitches.

4. An electric cooker as claimed in claim 1 or 2, characterized in that: the spring is sleeved on the outer side of the connecting rod and used for providing restoring force to the direction below the mounting plate for the connecting rod.

5. An electric cooker as claimed in claim 1 or 2, characterized in that: the cage passes through bolt assembly detachably and connects on the mounting panel, bolt assembly includes the double-screw bolt, with the nut of double-screw bolt matching, the double-screw bolt includes screw thread portion and handle portion, the center at the mounting panel is fixed to the nut, the center of cage is provided with the clearing hole that supplies the double-screw bolt to pass.

6. An electric cooker as claimed in claim 1 or 2, characterized in that: the cage passes through silica gel adapter sleeve detachably and connects on the mounting panel, be provided with the projection on the mounting panel, silica gel adapter sleeve sets up on the cage, the silica gel adapter sleeve is equipped with and is used for matcing the centre bore of installation with the projection.

7. An electric cooker as claimed in claim 2, characterized in that: the position of the edge of the inner container, which is abutted against the inner cover, is provided with a plurality of grooves for water vapor to pass through.

8. An electric cooker as claimed in claim 1, characterized in that: the pot cover is also provided with a temperature controller.

9. An electric cooker as claimed in claim 8, characterized in that: the pot cover is further provided with a fuse, the fan assembly comprises a motor and fan blades driven by the motor, and the motor is connected with the electric heating element in parallel and then connected with the fuse in series.

10. An electric cooker as claimed in claim 2, characterized in that: the inner part of the outer pot is provided with a temperature sensor and a heating disc for providing heat for the inner container.