CN114343424B

CN114343424B - Household electric cooker

Info

Publication number: CN114343424B
Application number: CN202210054243.8A
Authority: CN
Inventors: 朱晓晨
Original assignee: Miji Life Technology Guangdong Co ltd
Current assignee: Miji Life Technology Guangdong Co ltd
Priority date: 2022-01-18
Filing date: 2022-01-18
Publication date: 2022-10-21
Anticipated expiration: 2042-01-18
Also published as: CN114343424A

Abstract

The invention relates to the technical field of household kitchen utensils and discloses a household electric rice cooker, wherein a movable groove is formed in the bottom wall of a cooker body and is positioned right below a tripping cavity, electromagnets are uniformly and fixedly arranged in the inner wall of the periphery of the cooker body in an annular mode, sliders are symmetrically and movably sleeved at two ends in the movable groove, one side, far away from a connecting rod, of each slider is fixedly provided with a resistor strip which is in contact with a fixed contact, a pressing block is movably sleeved in the sleeve groove, bar magnets are movably sleeved in the movable cavity, negative pressure holes are uniformly formed in the middle of the bottom surface of a top cover, hydraulic cavities which are respectively communicated with the movable cavity and a liquid suction cavity are formed in the top cover, the electromagnets are arranged in the inner wall of the cooker body, the hydraulic cavities are formed in the top cover, and the structures such as the bar magnets and the pressing blocks are arranged, so that the heating and heat preservation effects of the electric rice cooker are effectively improved, and the electric rice cooker is cleaner and more sanitary when in use.

Description

Household electric cooker

Technical Field

The invention relates to the technical field of household kitchen utensils, in particular to a household electric cooker.

Background

The electric cooker is also called as an electric cooker, which is a cooker for converting electric energy into heat energy, the electric cooker heats rice or other food materials to be cooked by adopting an electric heating mode, the electric cooker is mainly heated by a heating plate at the bottom, a temperature limiter is arranged on the heating plate, when the temperature reaches a certain condition, a spring is propped against to stop the heating process, and the heating process is at a heat preservation state at the moment, although the principle and the structure of the electric cooker are simple, the electric cooker is convenient to use, but certain defects are still present in the practical use and point out:

the electric cooker is heated at the bottom, the bottom of the cooker is heated through the heating plate, and then the rice is heated inside through heat transfer, and the like, the heating mode is that the rice needs a long time to be cooked, the heating and temperature rising time is slow, and a gap is formed between the inner cooker and the inner wall of the shell, so that the heat dissipation of the inside is fast when the heat is preserved, meanwhile, the heat preservation is also controlled through the heating plate at the bottom, the heating and heat preservation can be controlled only according to the temperature of the inner container, therefore, the temperature of the rice at the top in the inner container is low, and the heating and heat preservation effect of the existing electric cooker is not particularly good;

when the rice cooker is heated and cooked, water is filled in the rice cooker, the water can upwards push the top cover after boiling, so that the water easily overflows around a pot opening, the heating effect is influenced once the water overflows to the bottom of the inner container, even the electric leakage condition is caused to some electric rice cookers with poor sealing performance, meanwhile, water vapor is easily formed at the bottom of the cover when the cover is opened after the rice cooker is cooked, small water drops are quickly formed and attached to the surface of the cover, and the water drops are gathered together when the cover is opened, so that the water drops flow to the bottom along the edge of the cover and easily flow into the pot or the rice, and the rice cooker is not sanitary enough.

Disclosure of Invention

Aiming at the defects of the background technology, the invention provides the household electric cooker which has the advantages of good heating and heat preservation effects, cleanness and sanitation, and solves the problems in the background technology.

The invention provides the following technical scheme: the utility model provides a domestic electric rice cooker, includes the pot body, the top cap has been cup jointed at the top of the pot body, the inner bag has been placed to the inside of the pot body, be cyclic annular even fixed mounting on the inner wall of pot body inner chamber and support the lug of pressing the contact with the inner bag, the bottom fixed mounting of pot body inner chamber has the dish that generates heat, the outside fixed mounting of the pot body has the switch, the tripping operation chamber has been seted up at the middle part of the dish that generates heat, the fixed temperature sensing magnet that has cup jointed in top in tripping operation chamber, pot body diapire inside is located tripping operation chamber and has seted up the movable groove under the position, tripping operation intracavity portion's activity has cup jointed the movable rod that bottom one end stretched into the movable groove, the top fixed mounting of movable rod has the permanent magnet, the bottom fixedly connected with of temperature sensing magnet cup joints in the movable rod outer lane and supports the spring of pressing rather than the outer lane disc, be cyclic annular even fixed mounting in the inner wall all around the pot body and have the electro-magnet.

Preferably, the slider has been cup jointed in the inside both ends symmetry activity in activity groove, one side that the slider is close to the movable rod is through the bottom activity hinge of connecting rod with the movable rod, fixed mounting has fixed contact on the activity inslot wall end wall, one side fixed mounting that the connecting rod was kept away from to the slider has the resistance strip with the contact of fixed contact.

Preferably, the grooving has been seted up at the top of top cap, the briquetting has been cup jointed in the inside activity of grooving, briquetting top surface side department fixed mounting has the buckle, the inside outer lane position that is close to of top cap is cyclic annular and has evenly seted up movable chamber, the activity of activity intracavity portion has cup jointed bar magnet, the negative pressure hole has evenly been seted up at top cap bottom surface middle part, the bottom surface of top cap sets up all around with the liquid guide groove of negative pressure hole intercommunication, the inside negative pressure hole top position that is located of top cap sets up rather than the imbibition chamber that communicates, the inside activity in imbibition chamber has cup jointed the piston plate, fixed mounting has the bellows between the bottom of piston plate and the imbibition chamber, the inside hydraulic pressure chamber rather than the intercommunication that is seted up between activity chamber that is located of top cap and the imbibition chamber, bar magnet side fixedly connected with piston block.

Preferably, the electromagnets are connected in parallel to the main circuit, the fixed contact is connected in series with the parallel circuit of the electromagnets, and the resistor strip and the fixed contact are respectively connected to the positive and negative electrodes in the circuit.

Preferably, the briquetting is the gravity piece of non-magnetic conductivity, be connected with the sealing strip between briquetting and the cover groove, the cover groove and hydraulic pressure chamber intercommunication and all contain hydraulic oil in its inside, hydraulic oil promote the required power of piston piece and be greater than the required power of promotion piston plate and be less than the required power of top movable briquetting, the intercommunicating pore diameter between cover groove and the hydraulic pressure chamber is greater than the intercommunicating pore diameter between imbibition chamber and the hydraulic pressure chamber, the aperture in negative pressure hole is less than the circle footpath of the grain of rice.

The invention has the following beneficial effects:

1. through the inner wall the inside at the pot body be provided with the electro-magnet, and there is resistance adjustment slider in temperature detect switch department design, compare in prior art, adopt the mode of establishing ties with the electro-magnet evenly installed in the internal wall of pot, will hold in step the electro-magnet heating when electric rice cooker circular telegram heating, thereby also can produce suction to the bar magnet in the top cap when the electro-magnet circular telegram makes contact between top cap and the pot body firm, and after boiling thoroughly the switch jump the heat preservation in-process, produce less heat in the electro-magnet and play the heat preservation effect, also reduce the adsorption affinity to the top cap simultaneously and conveniently take off the lid, just so through the design of circuit improvement and electro-magnet effectively improved the heat retaining effect.

2. Through at the internal electro-magnet that sets up of pot, and the hydraulic pressure chamber has been seted up inside the top cap, be provided with bar magnet and briquetting isotructure, compare in prior art, utilize the action of gravity that sets up hydraulic pressure cooperation briquetting inside the top cap, can adjust hydraulic pressure according to the inside steam bubble boiling condition in cooking, thereby control bar magnet's position change increases its and the suction of electro-magnet, thereby just so can increase the adsorption affinity of top cap and avoid the emergence of the overflow condition, thereby can adjust inside hydraulic pressure change through the gravity of top cap self when uncovering the lid simultaneously and produce the negative pressure on the negative pressure hole, adsorb the condition of avoiding its drippage in the imbibition chamber through the liquid guide groove with top cap bottom surface hydraulic steam drop of water, clean and sanitary.

Drawings

FIG. 1 is a general cross-sectional view of the structure of the present invention;

FIG. 2 isbase:Sub>A sectional view taken along line A-A of FIG. 1;

FIG. 3 is an enlarged view of the point B in FIG. 1;

FIG. 4 is an enlarged view of the point C in FIG. 1;

FIG. 5 is a schematic diagram of a circuit structure according to the present invention.

In the figure: 1. a pan body; 101. a movable groove; 2. a top cover; 201. sleeving a groove; 202. a movable cavity; 203. a negative pressure hole; 204. a liquid guide groove; 205. a liquid suction chamber; 206. a hydraulic chamber; 3. an inner container; 4. a heating plate; 401. a trip chamber; 5. a switch; 6. a bump; 7. a temperature-sensitive magnet; 8. a permanent magnet; 9. a spring; 10. a movable rod; 11. an electromagnet; 12. a connecting rod; 13. a slider; 14. a resistor strip; 15. fixing the contact head; 16. pressing into blocks; 1601. buckling; 17. a bar magnet; 18. a piston plate; 19. a bellows; 20. a piston block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to the attached

drawings

1, 2, 4 and 5, the household electric rice cooker comprises a cooker body 1, a top cover 2 is sleeved on the top of the cooker body 1, an inner container 3 is placed inside the cooker body 1, a lug 6 which is in pressing contact with the inner container 3 is uniformly and fixedly arranged on the inner wall of the inner cavity of the cooker body 1 in an annular shape, a heating plate 4 is fixedly arranged at the bottom of the inner cavity of the cooker body 1, a switch 5 is fixedly arranged on the outer side of the cooker body 1, a tripping cavity 401 is arranged in the middle of the heating plate 4, a temperature sensing magnet 7 is fixedly sleeved on the top of the tripping cavity 401, a movable groove 101 is arranged in the bottom wall of the cooker body 1 at a position right below the tripping cavity 401, a movable rod 10 with one end extending into the movable groove 101 is movably sleeved inside the tripping cavity 401, a permanent magnet 8 is fixedly arranged on the top of the movable rod 10, a spring 9 which is sleeved on the outer ring of the temperature sensing magnet 7 and is pressed against the outer ring of the movable rod 10 is fixedly connected with the outer ring, when the temperature reaches the boiling temperature in the heating process, the permanent magnet 8 basically loses magnetism, the temperature sensing magnet 7 and the permanent magnet 8 are separated under the action of the spring 9, the electric rice cooker enters a heat preservation state, electromagnets 11 are uniformly and fixedly installed in the inner wall of the periphery of the cooker body 1 in an annular shape, the electromagnets 11 can play a role in heating and heat preservation on one hand, and can be matched with the bar magnets 17 on the top cover 2 to play a role in sealing and adsorption on the other hand, so that the top cover 2 can be firmly adsorbed on the top of the cooker body 1 in the heating process, the sealing performance and the overflow prevention can be ensured, sliding blocks 13 are symmetrically and movably sleeved at two ends inside the movable groove 101, one side of each sliding block 13, which is close to the movable rod 10, is movably hinged with the bottom of the movable rod 10 through a connecting rod 12, and a fixed contact head 15 is fixedly installed on the end wall of the inner wall of the movable groove 101, the side of the sliding block 13 far away from the connecting rod 12 is fixedly provided with a resistance strip 14 which is in contact with a fixed contact 15, the resistance strip 14 slides on the fixed contact 15 to adjust the resistance in the circuit, so that the heating effect and the generated magnetic effect of the electromagnet 11 are realized, the electromagnets 11 are connected in parallel to a main circuit, the fixed contact 15 is connected in series with the parallel circuit of the electromagnet 11, the resistance strip 14 and the fixed contact 15 are respectively connected to the positive electrode and the negative electrode in the circuit, when the electric cooker is started, the heating disc 4 and the electromagnet 11 are heated and heated by current in the whole circuit, the heat generated by the large resistance of the heating disc 4 is more, so that the main function of heating rice is realized, the electromagnet 11 mainly plays a role of heating and heat preservation, the heating time is shorter by matching with the heating operation of the heating disc 4, and the problem of quick heat dissipation can be avoided, the spring 9 pushes the resistance strip 8 open after the rice is cooked, the resistance strip 14 is pushed to the maximum end of the resistance by the transmission of the movable rod 10, the connecting rod 12 and the sliding block 13, the circuit of the electromagnet, the permanent magnet is reduced when the current is reduced, and the loss of the permanent magnet is reduced, so that the energy consumption of the permanent magnet is reduced.

Referring to the attached

drawings

1 and 3, a sleeve groove 201 is formed in the top of a top cover 2, a pressing block 16 is movably sleeved in the sleeve groove 201, a buckle 1601 is fixedly installed at the side edge of the top surface of the pressing block 16, a movable cavity 202 is uniformly formed in the top cover 2 close to the outer ring in an annular shape, a bar magnet 17 is movably sleeved in the movable cavity 202, the installation positions of the bar magnet 17 respectively correspond to the positions of the electromagnets 11, but the bar magnet 17 is just opposite to the electromagnets 11 only when being pushed to the most edge, so that when cooking, when steam and the like enter the liquid suction cavity 205, the bar magnet 17 is driven to adjust the position, the adsorption force between the top cover 2 and the pot body 1 is increased, the top cover 2 is ensured not to be jacked up by the steam boiled inside, negative pressure holes 203 are uniformly formed in the middle of the bottom surface of the top cover 2, liquid guide grooves 204 communicated with the negative pressure holes 203 are formed around the bottom surface of the top cover 2, a liquid suction cavity 205 communicated with the top of the negative pressure hole 203 is formed in the top cover 2, a piston plate 18 is movably sleeved in the liquid suction cavity 205, a corrugated pipe 19 is fixedly installed between the bottom of the piston plate 18 and the liquid suction cavity 205, hydraulic cavities 206 respectively communicated with the movable cavity 202 and the liquid suction cavity 205 are formed in the top cover 2, a piston block 20 is fixedly connected to the side edge of the bar magnet 17, a pressing block 16 is a gravity block without magnetic conductivity, a sealing cover is connected between the pressing block 16 and a sleeve groove 201, the sleeve groove 201 is communicated with the hydraulic cavities 206 and contains hydraulic oil in the sleeve groove 201, the force required by the hydraulic oil for pushing the piston block 20 is larger than the force required by pushing the piston plate 18 and smaller than the force required by pushing the pressing block 16, the diameter of a communication hole between the sleeve groove 201 and the hydraulic cavity 206 is larger than the diameter of a communication hole between the liquid suction cavity 205 and the hydraulic cavity 206, and the diameter of the negative pressure hole 203 is smaller than the diameter of a circle of rice grains, after the top cover 2 is covered and rice is cooked, the top cover 2 slides to the bottommost part of the sleeve groove 201 under the action of gravity and pushes hydraulic oil to the liquid suction cavity 205, then bubbles push the piston plate 18 upwards under the action of air pressure along with the rise of the air pressure in the rice to the inside of the negative pressure hole 203, and then the piston block 20 is driven by hydraulic transmission to push the bar magnet 17 to slide in the movable cavity 202, so that the adsorption force between the bar magnet 17 and the electromagnet 11 is increased, and the situation that water overflow is generated due to the fact that the top cover 2 is pushed open under the pushing action of water vapor is avoided.

The working principle is that when the electric cooker is used, the top cover 2 is firstly covered, the top cover 2 presses hydraulic oil in the hydraulic cavity 206 to the top of the liquid suction cavity 205 under the action of gravity and enables the piston plate 18 to slide to the bottommost position, then the switch 5 is pressed to switch on a circuit for heating, high temperature is generated by heating the heating disc 4 and acts on the bottom of the inner container 3 to heat rice in the inner container, meanwhile, the electromagnet 11 can also generate heat after being electrified and enables the inner wall of the cooker body 1 to be heated and insulated, and magnetic poles generated at the top of the electromagnet 11 can attract the bar magnet 17 to enable the top cover 2 to be attached to the cooker body 1 more tightly;

when the rice is cooked, the temperature-sensitive magnet 7 is not attracted to the permanent magnet 8 when reaching the loss-of-field temperature, the permanent magnet 8 is separated from the temperature-sensitive magnet 7 through the movable rod 10 under the action of the spring 9, the slide block 13 is pushed towards two sides through the connecting rod 12 in the process that the movable rod 10 slides downwards, the slide block 13 moves to drive the resistor strip 14 to adjust resistance change on the fixed contact head 15, so that the current in the circuit of the electromagnet 11 is reduced, the heat generated by the electromagnet is reduced, the heat preservation effect is realized by matching with the heating disc 4, the attraction force to the bar magnet 17 is reduced, and the cover is convenient to open;

when water in the inner container 3 is boiled in the heating process, the water is jacked upwards to generate bubbles and water vapor, the bubbles and the water vapor enter the liquid suction cavity 205 through the negative pressure hole 203 and push the piston plate 18 upwards, at the moment, the piston plate 18 pushes the piston block 20 through hydraulic pressure so as to push the bar magnet 17 to a position right above the electromagnet 11, at the moment, the suction force between the electromagnet 11 and the bar magnet 17 is increased, so that the top cover 2 and the pot body 1 are more firmly adsorbed, the situation that the top cover 2 is jacked open due to water boiling is effectively avoided, meanwhile, when the cover is uncovered, as the gravity of the top cover 2 is greater than the pressing block 16, the clamping buckle is unlocked, the pressing block 16 is pulled upwards to drive the piston plate 18 to slide towards the top through hydraulic transmission, at the moment, a larger negative pressure is formed below the piston plate 18, at the moment, small water drops generated by liquefaction of the bottom surface of the top cover 2 flow to the negative pressure hole 203 along the liquid guide groove 204 and are sucked to the inside the liquid suction cavity 205, so as to avoid the situation that the water drops downwards.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A household electric cooker comprises a cooker body (1), and is characterized in that: the top of the pot body (1) is sleeved with the top cover (2), the inner container (3) is placed inside the pot body (1), the inner wall of the inner cavity of the pot body (1) is annularly and uniformly fixedly provided with a convex block (6) which is in contact with the inner container (3) in a pressing manner, the bottom of the inner cavity of the pot body (1) is fixedly provided with a heating disc (4), the outer side of the pot body (1) is fixedly provided with a switch (5), the middle part of the heating disc (4) is provided with a tripping cavity (401), the top of the tripping cavity (401) is fixedly sleeved with a temperature sensing magnet (7), the bottom wall of the pot body (1) is internally positioned under the tripping cavity (401) and is provided with a movable groove (101), the internal activity of the tripping cavity (401) is sleeved with a movable rod (10) with one end of the bottom extending into the movable groove (101), the top of the movable rod (10) is fixedly provided with a temperature sensing magnet (8), the bottom of the temperature sensing magnet (7) is fixedly connected with a spring (9) which is hinged with a movable rod (10) which is arranged on one side of the movable rod (10) and is hinged with a slider (11) and is arranged on the outer ring and a movable rod (13) which is hinged with a movable rod (10) on one side of the movable rod (10), fixed contact (15) are fixedly installed on the end wall of the inner wall of the movable groove (101), a resistance strip (14) in contact with the fixed contact (15) is fixedly installed on one side, away from the connecting rod (12), of the sliding block (13), the electromagnets (11) are connected in parallel to the main circuit, the fixed contact (15) is connected in series with the parallel circuit of the electromagnets (11), and the resistance strip (14) and the fixed contact (15) are respectively connected to the positive electrode and the negative electrode in the circuit.

2. A domestic electric rice cooker as claimed in claim 1, wherein: trepanning (201) have been seted up at the top of top cap (2), briquetting (16) have been cup jointed in the inside activity of trepanning (201), briquetting (16) top surface side department fixed mounting has buckle (1601), top cap (2) inside is close to outer lane position and is cyclic annular and evenly has seted up activity chamber (202), bar magnet (17) have been cup jointed in the inside activity of activity chamber (202), negative pressure hole (203) have evenly been seted up at top cap (2) bottom surface middle part, the bottom surface of top cap (2) is seted up all around and is led cistern (204) with negative pressure hole (203) intercommunication, top cap (2) inside is located negative pressure hole (203) top position and sets up imbibition chamber (205) rather than the intercommunication, imbibition chamber (205) inside activity has cup jointed piston board (18), fixed mounting has bellows (19) between the bottom of piston board (18) and imbibition chamber (205), hydraulic pressure chamber (206) rather than the intercommunication have been seted up to top cap (2) inside being located between activity chamber (202) and the imbibition chamber (205), bar magnet (17) side fixed connection has piston piece (20).

3. A household electric rice cooker as claimed in claim 2, characterized in that: briquetting (16) is the gravity piece of non-magnetic conductivity, be connected with sealing cover between briquetting (16) and cover groove (201), cover groove (201) and hydraulic pressure chamber (206) intercommunication and all contain hydraulic oil inside it, hydraulic oil promote piston block (20) required power be greater than promote piston plate (18) required power and be less than the required power of top movable briquetting (16), the intercommunicating pore diameter between cover groove (201) and hydraulic pressure chamber (206) is greater than the intercommunicating pore diameter between imbibition chamber (205) and hydraulic pressure chamber (206), the aperture in negative pressure hole (203) is less than the circle footpath of the rice grain.