CN213661998U - Electromagnetic heating device - Google Patents

Abstract

The utility model provides an electromagnetic heating device, which comprises a magnetic vessel; the magnetic vessel can be supported by the shell, and an accommodating cavity is formed in the shell; the coil panel is arranged in the accommodating cavity and used for heating the magnetic vessel; the detection assembly is used for detecting a change parameter of the magnetic conduction vessel under the action of a magnetic field generated by electrifying the coil disc so as to determine the temperature of the magnetic conduction vessel, wherein the change parameter is not the temperature; and the controller is electrically connected with the coil panel and the detection assembly and is used for controlling the heating state of the coil panel according to the temperature of the magnetic vessel. The detection assembly is used for directly detecting the change parameters of the magnetic conduction vessel under the action of the magnetic field generated by electrifying the coil panel, the temperature of the magnetic conduction vessel is determined through the change parameters, the controller is used for controlling the heating state of the coil panel according to the change parameters, meanwhile, the magnetic conduction vessel is prevented from being burnt, the service life of the magnetic conduction vessel is ensured, and the safety of the electromagnetic heating device is ensured.

Description

Electromagnetic heating device

Technical Field

The utility model belongs to the technical field of electromagnetic heating equipment, particularly, relate to an electromagnetic heating device.

Background

At present, in order to detect the water temperature of an electric kettle, an infrared temperature measuring probe is often adopted to measure the temperature of the outer wall of a kettle body, so that the accuracy and the measuring speed of a measuring result are improved, but for the glass electric kettle, the requirement of the infrared temperature measuring probe on the cleanliness of a glass wall is high, and the temperature measuring error is easily caused by dirt and scale or the glass wall to the probe. In the related art, a mode of measuring temperature by adopting a thermistor temperature detector is also provided, the thermistor temperature detector is usually arranged on a heating chassis, but the phenomenon of detection temperature delay exists, and the temperature measuring speed is not ideal.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art or the correlation technique.

To this end, an aspect of the present invention provides an electromagnetic heating device.

In view of this, an embodiment of an aspect of the present invention provides an electromagnetic heating apparatus, including a magnetic vessel; the magnetic vessel can be supported by the shell, and an accommodating cavity is formed in the shell; the coil panel is arranged in the accommodating cavity and used for heating the magnetic vessel; the detection assembly is used for detecting a change parameter of the magnetic conduction vessel under the action of a magnetic field generated by electrifying the coil disc so as to determine the temperature of the magnetic conduction vessel, wherein the change parameter is not the temperature; and the controller is electrically connected with the coil panel and the detection assembly and is used for controlling the heating state of the coil panel according to the temperature of the magnetic vessel.

In this embodiment, an electromagnetic heating device includes a magnetically permeable vessel, a housing, a coil disk, a detection assembly, and a controller. Wherein, the casing can support the magnetic conduction household utensils, and the casing can also can dismantle with the magnetic conduction household utensils and be connected with magnetic conduction household utensils fixed connection, for example when using, places the magnetic conduction household utensils on the casing, and when not using, takes away the magnetic conduction household utensils from the casing and accomodate. The coil disc is arranged in the accommodating cavity, and the magnetic conduction vessel is heated. The detection component is used for detecting a variation parameter of the magnetic conduction vessel under the action of the magnetic field, the variation parameter is not the temperature, but the temperature of the magnetic conduction vessel can be determined according to the variation parameter, for example, the variation parameter is in positive correlation or negative correlation with the temperature of the magnetic conduction vessel, and the like, or the variation parameter is substituted into a formula to calculate the temperature of the magnetic conduction vessel. The detection component directly detects the change parameters of the magnetic vessel under the action of the magnetic field generated by electrifying the coil panel, the temperature of the magnetic vessel is determined through the change parameters, and the controller controls the heating state of the coil panel according to the change parameters. Compared with the prior art that the thermistor detector is arranged for heat transfer and temperature measurement, the temperature sensor reduces the heat transfer hysteresis and is beneficial to quickly acquiring the temperature of the magnetic vessel, so that the controller is beneficial to quickly controlling the heating state of the coil panel in time according to the change parameters detected by the detection assembly, and quick temperature measurement is realized. Moreover, the requirement on the cleanness of the glass is not required to be considered under the condition that part of the magnetic vessel is made of the glass, so that the magnetic vessel is convenient for users to use.

Moreover, when the coil disc is in a heating state, if the liquid in the magnetic conduction vessel is emptied or has no liquid or only little liquid, the change parameters of the magnetic conduction vessel detected by the detection assembly can be greatly changed in a short time or in an instant, so that the controller can control the coil disc to stop working timely according to the change condition of the change parameters, and the magnetic conduction vessel is prevented from being burnt. Compared with the prior art that sensors such as a water level detection device and the like are additionally arranged to prevent interference, parts are saved, cost is saved, and the detection assembly can quickly detect parameter change of the magnetic conduction vessel, timely control the coil panel to stop heating, guarantee the service life of the magnetic conduction vessel and ensure the safety of the electromagnetic heating device.

In a specific embodiment, the controller is further configured to determine a temperature of the magnetically conductive vessel based on the change parameter detected by the detection assembly to control a heating state of the coil disk based on the temperature of the magnetically conductive vessel. For example, the controller is used for substituting the variation parameter into a formula to calculate the temperature of the magnetic vessel. For another example, the controller is configured to determine the temperature of the magnetically permeable vessel with reference to a mapping of the variation parameter to the temperature.

In a particular embodiment, the varying parameter comprises a magnetic field strength. The detection assembly is used for detecting the magnetic field intensity of the magnetic conduction vessel, the magnetic field intensity of the magnetic conduction vessel changes along with the temperature of liquid in the magnetic conduction vessel, and the controller can acquire the real-time temperature of the magnetic conduction vessel through the relation between the preset magnetic field intensity and the preset temperature. When the temperature of the liquid in the magnetic vessel is low, the detection assembly detects that the magnetic field intensity of the magnetic vessel is low, which indicates that the temperature of the liquid in the magnetic vessel is low at the moment, and the controller controls the coil disc to increase the heating power of the magnetic vessel; when the detection assembly detects that the magnetic field of the magnetic vessel is high, the temperature of the magnetic vessel is high at the moment, and the controller controls the coil disc to reduce the heating power or stop heating the magnetic vessel. In addition, when the temperature of the magnetic conduction vessel is higher than the set upper limit temperature, the controller controls the coil disc to stop heating, or when the temperature of the magnetic conduction vessel is lower than the set lower limit, the controller controls the coil disc to reheat, and constant temperature or temperature control is facilitated.

In one embodiment, the controller controls the heating state of the coil disk to be at a constant temperature, a constant heating power, or a small heating power. Wherein the increasing of the heating power and the decreasing of the heating power may be stepwise increased or stepwise decreased depending on the detected variation parameter.

In addition, according to the utility model provides an electromagnetic heating device among the above-mentioned technical scheme can also have following additional technical characteristics:

in some possible designs, the variation parameter includes at least one of a magnetic field strength variation parameter, a voltage variation parameter, an inductance variation parameter, and an impedance variation parameter.

In one particular design, the variation parameter comprises a magnetic field strength variation parameter. The magnetic field intensity of the magnetic conduction vessel can change along with the temperature change of the magnetic conduction vessel, so that the temperature of the magnetic conduction vessel can be determined according to the magnetic field intensity.

In one particular design, the variation parameter comprises a voltage variation parameter, and the voltage of the magnetically permeable vessel can vary with the temperature variation of the magnetically permeable vessel, thereby facilitating the determination of the temperature of the magnetically permeable vessel from the voltage.

In a specific design, the variation parameters comprise inductance variation parameters and impedance variation parameters, which are beneficial for the controller to bring the inductance and the impedance into a formula to calculate the temperature of the magnetic vessel.

In some possible designs, the detection assembly is disposed on a side of the magnetically permeable vessel proximate to the housing.

In these designs, the detection component is disposed on a side of the magnetically permeable vessel adjacent to the housing. The detection assembly is close to the magnetic conduction vessel, so that the change parameters of the magnetic conduction vessel can be detected more sensitively and rapidly.

In some possible designs, there is a gap between the detection face of the detection assembly and the magnetically permeable face of the magnetically permeable vessel.

In these designs, a gap is provided between the detection surface of the detection assembly and the magnetically conductive surface of the magnetically conductive vessel. On the one hand, the detection assembly can be ensured to detect accurately, on the other hand, the electromagnetic heating device is ensured to be in a resonance working state, and meanwhile, the magnetic conduction vessel is ensured to have enough heat dissipation space.

In some possible designs, the distance between the detection surface of the detection assembly and the magnetic conduction surface of the magnetic conduction vessel ranges from 5mm to 20 mm.

In these designs, the size of the gap between the detection surface of the detection assembly and the magnetic conductive surface of the magnetic conductive vessel determines the effect of the detection assembly in detecting the variation parameters. The distance between the detection surface of the detection assembly and the magnetic conduction surface of the magnetic conduction vessel is larger than or equal to 5mm, so that the situation that a large amount of heat is accumulated on a panel of the electromagnetic heating device when the distance is too small can be effectively avoided, the magnetic conduction vessel is ensured to have enough heat dissipation space, the detection assembly is prevented from interfering the coil disc, and the heating system is ensured to be in a resonance working state. The detection effect of the detection assembly can be ensured by enabling the detection surface of the detection assembly to be less than or equal to 20mm away from the magnetic conduction surface of the magnetic conduction vessel, and the detection effect of the detection assembly caused by too large distance is avoided to be unsatisfactory.

In some possible designs, the electromagnetic heating apparatus further comprises: the elastic piece is arranged in the accommodating cavity and is connected with the detection assembly; the detection assembly can be contacted with the magnetic conduction vessel under the elastic force action of the elastic piece.

In these designs, through set up the elastic component in holding the intracavity, make the determine module can contact with the magnetic conduction household utensils under the elasticity effect of elastic component, be favorable to guaranteeing determine module and magnetic conduction household utensils in close contact to guarantee the temperature measurement accuracy.

In a specific embodiment, in the case that the electromagnetic heating device further comprises a panel, the panel is provided with a through hole, and the detection assembly can contact the magnetic vessel through the through hole under the elastic force of the elastic member. Therefore, under the natural state, namely under the condition that the magnetic vessel is not placed, the elastic piece is free from external force, the detection assembly stretches out of the through hole at the moment, the user can observe and judge the temperature measurement position, and the magnetic vessel is placed on the detection assembly. Under the operating condition, namely the condition of placing the magnetic vessel, the elastic part is compressed, and the detection assembly moves downwards into the through hole. When the user removes the magnetic vessel, the elastic part is stressed and disappears, and the detection assembly stretches out of the through hole again under the action of the elastic part. That is to say, the detection component can stretch out the through-hole or move down to in the through-hole under the drive of elastic component, and convenience of customers observes detection component's position and places the magnetic conduction household utensils on the panel, is favorable to making the magnetic conduction household utensils accuracy place in place, easy operation, and the convenience is stronger.

It is worth to say that one end of the elastic piece is fixedly connected with the accommodating cavity, and the other end of the elastic piece is connected with the detection assembly, so that when the detection assembly drives the elastic piece to move, the elastic piece cannot be separated from the accommodating cavity, and the influence on the service life of the elastic piece due to repeated unnecessary stretching of the elastic piece is avoided. In particular, the elastic member is a spring.

In some possible designs, the detection assembly is disposed in the middle of the coil disk; and/or the coil panel is provided with a mounting hole, and the detection assembly is arranged in the mounting hole.

In these designs, through making the detection assembly set up in the middle part of coil panel, because the middle part of coil panel does not have the coil, can effectively avoid the installation of detection assembly to cause the influence to the coil on the coil panel. Moreover, the detection assembly is not supported by additionally arranging structures such as a support, and the like, so that the reduction of parts and the cost are facilitated. And the coil panel is closer with the distance of magnetic vessel diapire to make the detection subassembly that sets up at coil panel middle part also closer with the distance of leading the magnetic surface, be favorable to accurately detecting the change parameter of leading the magnetic surface under the effect in magnetic field. In addition, because the magnetic field intensity in the middle of the coil panel is relatively weak, the interference of the coil panel on the detection assembly can be effectively reduced, and the detection accuracy of the detection assembly is improved. In addition, because the temperature in the middle of the coil panel is not too high, the temperature rise of the detection assembly under the action of a magnetic field generated by electrifying the coil panel can be effectively avoided, and even the detection assembly is damaged.

In addition, the coil disc is provided with the mounting hole, the detection assembly is arranged in the mounting hole, and the mounting stability of the detection assembly is guaranteed.

In a specific application, the detection assembly is clamped in the mounting hole. The detection assembly is prevented from falling off the coil panel. Of course, the detecting component can also be connected to the coil panel through a connector such as a plug or a screw.

In some possible designs, the detection assembly is arranged right below the magnetic conduction surface of the magnetic conduction vessel; and/or the center line of the detection assembly is overlapped with the center line of the magnetic conduction surface of the magnetic conduction vessel.

In these designs, specifically limited the setting of determine module and lead under the magnetism face of leading of magnetic vessel, determine module can set up the inside that holds the chamber, also can at least partly expose in holding the chamber, avoids determine module because of placing the influence of offset to the testing effect to the accuracy of determine module testing result has been guaranteed.

Through making the central line of determine module and leading the magnetic surface central line of magnetic household utensils overlap, be favorable to making the change parameter that determine module can more quick accurate detection leading the magnetic household utensils.

In some possible designs, the electromagnetic heating apparatus further comprises: the panel sets up in the casing, and the casing can support the magnetic conduction household utensils through the panel, and magnetic conduction household utensils and panel can be dismantled and be connected.

In these designs, it is specifically defined that the electromagnetic heating device further comprises a panel disposed on the housing, the housing supports the magnetically conductive vessel through the panel, and defines a connection mode of the magnetically conductive vessel and the panel. Through making panel and magnetic conduction household utensils can dismantle the connection, when need not heat the magnetic conduction household utensils, can dismantle the magnetic conduction household utensils from the panel for the magnetic conduction household utensils can be taken out and deposit alone, have saved occupation space, and place the magnetic conduction household utensils on the panel when needs heating, thereby made things convenient for the different user demands of magnetic conduction household utensils.

Certainly, the detachable connection mode of the magnetic conduction vessel and the panel is also beneficial to the panel to support the magnetic conduction vessels with other shapes and sizes, and the multifunctional heating of the electromagnetic heating device is realized.

Of course, in some other possible designs, the electromagnetic heating device may not include a panel, but the magnetic vessel may be directly disposed on the housing. The magnetic vessel can be fixedly arranged on the shell, for example, the magnetic vessel and the shell can be integrally formed, in other words, one part of the shell is constructed into the magnetic vessel, and the magnetic vessel and the shell jointly form a seat-type electromagnetic heating device; the magnetic vessel can also be detachably connected with the shell.

In some possible designs, the electromagnetic heating apparatus further comprises: and the prompting device is electrically connected with the controller, and the controller is also used for controlling the prompting device to send out prompting information according to the change parameters detected by the detection assembly.

In these designs, it is specifically limited that the electromagnetic heating device further comprises a prompting device, which is convenient for knowing the working state of the electromagnetic heating device through the prompt of the prompting device. For example, the controller may control the prompting device to send out the work prompting message to prompt the user to start the normal work state when the detection component detects the changed parameter, for example, when the detection component works normally. When the detection assembly cannot detect the change parameters, for example, the detection assembly is separated from the magnetic conduction vessel or the detection assembly is not in accurate contact with the magnetic conduction vessel, at the moment, the placing position of the magnetic conduction vessel is deviated, the detection assembly is not in the projection under the vessel bottom wall of the magnetic conduction vessel, and the controller can control the prompting device to send out warning prompt information to prompt a user to correctly place the magnetic conduction vessel, wherein the magnetic conduction vessel is in an abnormal working state at the moment.

Further, the prompt message may include a pattern, light, text, audio, and the like.

For example, the normal working state is displayed in the form of patterns or characters, and the prompting device does not make sound at the moment and does not interfere with the user. The working state sensed by the user is prompted in an audio mode, so that the user can be prompted in a noisy indoor environment conveniently. For example, a soft warning tone indicates a normal operating state, and a sharp warning tone indicates an abnormal operating state. Work state that the form suggestion user of through light sensed is convenient for dim or night in the surrounding environment, can not disturb the user this moment, can also play the effect of suggestion. It will be appreciated that the different forms described above may be used in combination. Through different forms of prompt messages, the working state of the electromagnetic heating device is prompted to the user when the surrounding environment is different, so that the user can know the working state of the electromagnetic heating device, and error operation can be corrected in time when the electromagnetic heating device is in an abnormal working state.

In some possible designs, the panel is provided with a mounting groove, and the bottom of the magnetic vessel is embedded in the mounting groove.

In these designs, a connection of the faceplate to the magnetically permeable vessel is defined. The mounting groove is arranged on the panel, and the shape of the mounting groove is matched with the bottom of the magnetic conduction vessel, so that the bottom of the magnetic conduction vessel can be embedded into the mounting groove. The installation groove is convenient to assemble, installation and removal of the magnetic conduction vessel are facilitated, and the bottom of the magnetic conduction vessel is favorable for quickly finding the position of the installation groove and embedding the installation groove into the installation groove. Moreover, the shape of mounting groove and magnetic conduction household utensils bottom shape cooperate, and behind the embedding mounting groove of magnetic conduction household utensils bottom, both cooperations are inseparable, do not have the clearance, when being favorable to better realization heating effect, avoid having the clearance to hold the dirt and cause difficult abluent phenomenon.

Specifically, the panel adopts split type design with the magnetic conduction household utensils for the magnetic conduction household utensils are lighter, do benefit to the user and empty liquid, and split type design also does benefit to the user and washs magnetic conduction household utensils inside moreover, has promoted the user and has used experience.

In a concrete embodiment, the panel and the magnetic vessel can also adopt an integrated design mode, the arrangement is favorable for processing production, the pollution of the environment to the panel is reduced, and the cleanliness of the panel is improved.

In some possible designs, a part of the panel is recessed into the accommodating cavity to form a mounting groove; or the panel is provided with at least one protruding part, and the at least one protruding part encloses to form the mounting groove.

In these designs, a portion of the panel defining the mounting slot is recessed into the interior of the receiving cavity. Specifically, the mounting groove that undercut formed cooperatees with magnetic conduction household utensils bottom shape to make the bottom of magnetic conduction household utensils can install in the mounting groove of panel undercut, in order to play installation and spacing function. The design of undercut formation mounting groove can not occupy extra manufacturing cost, produces processing according to the bottom shape of magnetic conduction household utensils, need not add extra mould, is fit for mass production.

Set up at least one bulge on the panel, at least one bulge encloses and closes the formation mounting groove to the bottom that makes the magnetic conduction household utensils is located the within range that at least one bulge encloses, thereby accomplishes the installation of magnetic conduction household utensils. Specifically, the quantity of at least one bulge is difficult for setting up too little, and the too little bulge can't play fine spacing installation effect, and the quantity of bulge is difficult for setting up too much simultaneously, and the bulge is too much can lead to unnecessary material extravagant, leads to manufacturing cost to increase to do not need too much bulge in installation magnetic conduction household utensils bottom. The at least one protrusion may be two in number, and may be three in number. The two convex parts are in a circular arc shape or a circular ring shape, wherein the central line of the circular arc shape or the circular ring shape is overlapped with the central line of the magnetic conduction surface of the magnetic conduction vessel, and the two convex parts are symmetrically arranged relative to the central line of the magnetic conduction surface of the magnetic conduction vessel. The three convex parts are in a circular arc shape or a circular ring shape, wherein the central line of the circular arc shape or the circular ring shape is overlapped with the central line of the magnetic conduction surface of the magnetic conduction vessel, and the three convex parts are arranged at equal intervals relative to the central line of the magnetic conduction surface of the magnetic conduction vessel, so that the distance between any two adjacent convex parts is equal. The bottom of the magnetic vessel is limited and installed through the at least one protruding part.

It can be understood that the shape of the protruding part can be adaptively adjusted according to the shape of the bottom of the magnetic vessel, and the protruding part can be in a strip shape, a column shape or other shapes.

Specifically, the bulge can adopt the integrated into one piece structure with the panel, has satisfied the structural strength and the joint strength of bulge promptly, has and has good mechanical properties, has avoided unnecessary structural connection simultaneously.

In some possible designs, the groove depth of the mounting groove ranges from 0.5mm to 30 mm.

In these designs, the range of values of the groove depth of the mounting groove is defined. The groove depth of the mounting groove directly influences the mounting effect of the bottom of the magnetic vessel. Specifically, the groove depth value is difficult too big, and the groove depth value is too big, leads to the panel to produce too deep mounting groove to influence the installation space of other inside components of panel, all can cause the influence to heating and radiating effect. Meanwhile, the groove depth value is not easy to be too small, and when the groove depth value is too small, a good installation limiting function cannot be achieved, so that the use experience of a user is influenced. Therefore, the groove depth value is set within the range of 0.5mm to 30mm, the groove depth is greater than 0.5mm, and the installation and limiting effect of the bottom of the magnetic vessel can be guaranteed. The groove depth is less than 30mm, so that the installation space of the internal elements of the panel is ensured, and the heating and radiating effects are ensured.

In some possible designs, one of the bottom walls of the vessel of the panel and the magnetic vessel is provided with a limiting groove, the other is provided with a limiting protrusion, and the limiting groove is matched with the limiting protrusion.

In these designs, a connection of the faceplate to the magnetically permeable vessel is defined. One of the bottom walls of the vessel of the panel and the magnetic conduction vessel is provided with a limiting groove, the other is provided with a limiting protrusion, and the limiting groove is matched with the limiting protrusion. Specifically, be equipped with the spacing groove on the household utensils diapire of magnetic conduction household utensils, be equipped with the spacing protrusion of matched with on the panel, perhaps be equipped with spacing protrusion on the household utensils diapire of magnetic conduction household utensils, be equipped with the spacing groove of matched with on the panel, be favorable to the accurate installation of magnetic conduction household utensils and panel.

The bottom wall of the vessel of the magnetic vessel is provided with a limit groove, the panel is provided with a matched limit protrusion, specifically, in the installation process of the magnetic vessel, the limit groove at the bottom of the magnetic vessel is aligned with the limit protrusion position arranged on the panel, and the magnetic vessel is moved downwards until the limit protrusion moves into the limit groove, so that the installation of the magnetic vessel is completed. Realize the stable connection of magnetic vessel, convenient assembling is swift.

In some possible designs, the stop protrusion is provided at an edge of the bottom wall of the vessel; or the limiting groove is arranged in the middle of the bottom wall of the vessel.

In these designs, the location of the stop lug is defined, the stop lug being arranged at the edge of the bottom wall of the vessel. Specifically, the corresponding position that corresponds household utensils diapire edge at the panel sets up the spacing groove that suits to make the magnetic conduction household utensils at the in-process of installation, cooperate through the spacing protrusion that household utensils diapire edge set up and the spacing groove that the panel set up and play installation and spacing function. Particularly, the limiting protrusion and the vessel bottom wall or the vessel side wall of the magnetic vessel are of an integrally formed structure, the integrity of the vessel bottom wall is guaranteed, the structural strength of the vessel bottom wall is met, the mechanical property is good, and unnecessary component connection is avoided.

The spacing groove sets up in the middle part of household utensils diapire, and the position that corresponds household utensils diapire middle part at the panel this moment sets up in spacing groove matched with spacing protrusion, and this kind of setting makes the user can audio-visual observation obtain spacing convex position for the installation of magnetic conduction household utensils is more accurate. Particularly, the spacing groove and the vessel bottom wall of the magnetic vessel adopt an integrally formed structure, so that the integrity of the vessel bottom wall is ensured, the structural strength of the vessel bottom wall is simultaneously met, the mechanical property is good, and unnecessary component connection is avoided.

Further, the limiting protrusions can be in a sectional annular shape or an end-to-end annular structure. The sectional type limiting convex quantity is not easy to set too little, the too little limiting convex can not play a good limiting installation effect, meanwhile, the limiting convex quantity is not easy to set too much, the limiting convex leads to unnecessary material waste, the production cost is increased, and the limiting function is realized without too much limiting convex. The number of the limiting protrusions can be two or three. The two limiting bulges are in the shape of an arc or a ring, wherein the center line of the ring or the arc is overlapped with the center line of the magnetic conduction surface of the magnetic conduction vessel, and the two limiting bulges are symmetrically arranged relative to the center line of the magnetic conduction surface of the magnetic conduction vessel. The three limiting bulges are in the shape of an arc or a ring, wherein the center line of the ring or the arc is overlapped with the center line of the magnetic conducting surface of the magnetic conducting vessel, and the three limiting bulges are arranged at equal intervals relative to the center line of the magnetic conducting surface of the magnetic conducting vessel, so that the distance between any two adjacent limiting bulges is equal.

It can be understood that the shape of the limiting protrusion can be adaptively adjusted according to the shape of the bottom of the magnetic conductive surface, and the limiting protrusion can be in a strip shape, a column shape or other shapes.

In some possible designs, the groove depth of the limiting groove ranges from 0.5mm to 30 mm.

In these designs, the range of values of the groove depth of the spacing groove is defined. The groove depth of the limiting groove directly influences the limiting effect of the bottom of the magnetic vessel. Specifically, the groove depth is not easy to be excessively large, and the groove depth is excessively large, so that the grooving depth is excessively large, and the waste of materials and a production process is caused. Meanwhile, the groove depth value is not easy to be too small, and when the groove depth value is too small, good installation and limiting functions cannot be achieved, so that the use experience of a user is influenced. Therefore, the groove depth value is set within the range of 0.5mm to 30mm, the groove depth is greater than 0.5mm, and the installation and limiting effect of the bottom of the magnetic vessel can be guaranteed. The groove depth is less than 30mm, so that the installation space of the internal elements of the panel is ensured, and the heating and radiating effects are ensured.

In some possible designs, the magnetically permeable vessel includes a protective sleeve disposed on a bottom outer surface of the magnetically permeable vessel.

In these designs, it is defined that the magnetically permeable vessel comprises a protective sleeve, which adopts a structure adapted to the panel. The protective sleeve is arranged on the outer surface of the bottom of the magnetic conduction vessel, so that the magnetic conduction surface is protected. Specifically, in the electromagnetic heating utensil use, remove or install the magnetic conduction household utensils and more or less can lead to the fact wearing and tearing to the bottom of magnetic conduction household utensils, can effectively play the guard action to the bottom of magnetic conduction household utensils through setting up the protective sheath, protected the magnetic surface that leads of magnetic conduction household utensils promptly to the life of electromagnetic heating device has been prolonged, the market competition of improvement product.

Specifically, the material of protective sheath can adopt wear-resisting material to make, effectively prolongs electromagnetic heating device's life.

In some possible designs, the protective sleeve is provided with a first connecting part, the panel is provided with a second connecting part, and the first connecting part and the second connecting part are connected through magnetic attraction; wherein, at least one of the first connecting part and the second connecting part is a permanent magnet.

In these designs, first connecting portion set up in the protective sheath, and the second connecting portion set up in the panel, through making to have magnetic attraction between first connecting portion and the second connecting portion for the protective sheath can be inhaled on the panel by magnetism, thereby drives magnetic conduction household utensils magnetism and inhale on the panel. Specifically, the first connection portion and the second connection portion are disposed at the fittingly positions. When installing the magnetic conduction household utensils, place the magnetic conduction household utensils on the panel, at the placement in-process, the distance between first connecting portion and second connecting portion reduces gradually, when the distance reduces to both can produce magnetic attraction, first connecting portion are attracted by the second connecting portion for protective sheath magnetism is inhaled on the panel, thereby drives magnetic conduction household utensils magnetism and inhales on the panel, with the installation of accomplishing the magnetic conduction household utensils.

Specifically, when the magnetic vessel needs to be moved out, the magnetic vessel only needs to be pulled out by overcoming the magnetic force. The magnetic-conductive vessel is connected in a magnetic-suction mode, is simple and convenient, does not need an additional connecting part, has small change on the magnetic-conductive vessel, is beneficial to reducing the process flow, ensures the process strength and saves the product cost. Meanwhile, the surface flatness of the protective sleeve and the surface plate cannot be influenced by the installation of the permanent magnet, the attractive appearance of the protective sleeve and the surface plate is ensured, and the market competitiveness is improved.

Moreover, the magnetic vessel is connected with the panel through the magnetic attraction between the first connecting portion and the second connecting portion, the magnetic vessel is placed in place in the panel, the first connecting portion can directly move to the position corresponding to the second connecting portion, and the magnetic vessel is guaranteed to be installed in place quickly.

Specifically, at least one of the first connection portion and the second connection portion is a permanent magnet. The permanent magnet is not easy to lose magnetism and magnetize, can keep magnetism for a long time, and ensures the service life of the first connecting part and the second connecting part.

Of course, at least one magnetizer can be arranged between the first connecting part and the second connecting part, the magnetic resistance of the magnetizer is very small, and magnetic flux can pass easily, so that the magnetic attraction force can be better transmitted in the process that the distance between the first connecting part and the second connecting part is gradually reduced. It is also possible to make both the first connecting portion and the second connecting portion permanent magnets so as to better generate magnetic attraction.

Furthermore, the number of the first connecting parts and the second connecting parts is equal, and the arrangement positions are suitable. The number of the first connection portions and the second connection portions may be one or two. The specific setting number and the setting position can be adaptively adjusted according to electromagnetic heating devices with different structures.

In some possible designs, the projected surface area of the coil panel on the magnetic conduction surface of the magnetic conduction vessel is not less than 1/5 of the area of the magnetic conduction surface; and/or the central line of the coil disc is overlapped with the central line of the magnetic conducting surface of the magnetic conducting vessel.

In these designs, the size of the projected area of the coil disk on the magnetically conductive surface of the magnetically conductive vessel determines the heating area of the coil disk. The area of the projection surface of the coil panel on the magnetic conduction surface of the magnetic conduction vessel is not less than 1/5 of the area of the magnetic conduction surface, so that the coil panel can be ensured to fully heat the magnetic conduction surface and fully heat the magnetic conduction vessel.

The center line of the coil panel is overlapped with the center line of the magnetic conducting surface of the magnetic conducting vessel. So that the circle center of the coil panel is aligned with the circle center of the magnetic vessel, thereby ensuring that the magnetic vessel can be uniformly heated when the coil panel works.

In some possible designs, the magnetically permeable vessel is constructed of magnetically permeable material; or the magnetic vessel comprises a vessel body and a magnetic conduction layer arranged on the vessel body.

In the designs, the magnetic conduction vessel can be made of magnetic conduction materials, so that the magnetic conduction vessel can adopt an integrally formed structure, the design is beneficial to processing the magnetic conduction vessel, and the mechanical property is ensured. In this case, the magnetically permeable surface of the magnetically permeable vessel is the outer surface of the vessel bottom wall.

In addition, the magnetic conduction vessel can also comprise a vessel body and a magnetic conduction layer arranged on the vessel body. Specifically, the magnetic conduction layer is arranged on the magnetic conduction body, so that the production cost is saved, and the market competitiveness of the product is improved. In this case, the magnetic conductive surface of the magnetic conductive vessel is the side surface of the magnetic conductive layer facing the coil panel.

In specific application, the magnetic conductive body of the non-magnetic material such as glass or ceramic can be coated with the uniformly mixed magnetic conductive layer.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 shows a schematic cross-sectional view of an electromagnetic heating apparatus according to an embodiment of the present invention;

fig. 2 is a schematic view illustrating a connection mode between a magnetic vessel and a panel according to an embodiment of the present invention;

fig. 3 is a schematic view illustrating a connection mode between a magnetic vessel and a panel according to another embodiment of the present invention;

fig. 4 is a schematic view illustrating a connection mode between a magnetic vessel and a panel according to still another embodiment of the present invention;

fig. 5 is a schematic view illustrating a connection mode between a magnetic vessel and a panel according to another embodiment of the present invention;

fig. 6 is a schematic view illustrating a connection mode between a magnetic vessel and a panel according to another embodiment of the present invention;

fig. 7 is a schematic view illustrating a connection manner between the detection assembly and the panel according to an embodiment of the present invention;

fig. 8 shows a schematic partial cross-sectional view of an electromagnetic heating apparatus of an embodiment of the invention;

FIG. 9 is a schematic view of a temperature measurement schematic model of a test assembly according to an embodiment of the present invention;

FIG. 10 shows a schematic diagram of an equivalent theoretical model of the thermometry scheme of FIG. 9.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 10 is:

100 electromagnetic heating devices, 110 panels, 111 mounting grooves, 112 bulges,

113a first retaining groove, 113b a second retaining groove,

114a, 114b, a first stop lug,

120 magnetic vessel, 121 magnetic surface, 130 casing, 140 coil panel, 150 detection component, 160 controller, 170 elastic component, 180 protective sheath, 181 first connecting portion, 182 second connecting portion.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

An electromagnetic heating apparatus according to some embodiments of the present invention is described below with reference to fig. 1 to 10. The first and second limiting grooves 113a and 113b in fig. 3 and 4 are both one of the limiting grooves. For the sake of distinction only, the different structures of the stopper groove are designed as a first stopper groove 113a and a second stopper groove 113 b. Likewise, the first and second stopper protrusions 114a and 114b of fig. 3 and 4 are each one of the stopper protrusions, and stopper protrusions of different structures are designed as the first and second stopper protrusions 114a and 114b for the sake of distinction only.

Example one

As shown in fig. 1, an aspect of the present invention provides an electromagnetic heating apparatus 100. Comprises a magnetically conductive vessel 120; a housing 130 capable of supporting the magnetically conductive vessel 120, the housing 130 having a receiving cavity therein; a coil panel 140 disposed in the accommodating cavity for heating the magnetically conductive vessel 120; a detecting component 150, configured to detect a variation parameter of the magnetically permeable vessel 120 under the action of a magnetic field generated by energizing the coil panel 140, so as to determine a temperature of the magnetically permeable vessel 120, where the variation parameter is not the temperature; and a controller 160 electrically connected to the coil panel 140 and the detection assembly 150, wherein the controller 160 is used for controlling the heating state of the coil panel 140 according to the temperature of the magnetic conductive vessel 120.

The electromagnetic heating apparatus 100 of the present embodiment includes a magnetically conductive vessel 120, a housing 130, a coil panel 140, a detection assembly 150, and a controller 160. The casing 130 can support the magnetic vessel 120, and the casing 130 can be fixedly connected to the magnetic vessel 120 or detachably connected to the magnetic vessel 120, for example, when the magnetic vessel 120 is used, the magnetic vessel 120 is placed on the casing 130, and when the magnetic vessel 120 is not used, the magnetic vessel 120 is taken away from the casing 130. The housing 130 has a receiving cavity therein, and the coil disk 140 is disposed in the receiving cavity to heat the magnetic vessel 120, specifically, the magnetic vessel 120 can generate heat under the action of a magnetic field generated by energizing the coil disk 140 to heat the liquid and the like in the magnetic vessel 120. The detecting component 150 is configured to detect a variation parameter of the magnetic conductive vessel 120 under the action of the magnetic field, where the variation parameter is not the temperature, but can determine the temperature of the magnetic conductive vessel 120, for example, the variation parameter is directly or negatively correlated with the temperature of the magnetic conductive vessel 120, or the variation parameter is substituted into a formula to calculate the temperature of the magnetic conductive vessel 120. The detecting component 150 directly detects the variation parameter of the magnetic vessel 120 under the action of the magnetic field generated by electrifying the coil panel 140, determines the temperature of the magnetic vessel 120 through the variation parameter, and enables the controller 160 to control the heating state of the coil panel 140 according to the variation parameter. Compared with the prior art in which a thermistor detector is arranged for heat transfer and temperature measurement, the heat transfer hysteresis is reduced, and the temperature of the magnetic vessel 120 can be rapidly obtained, so that the controller 160 can rapidly control the heating state of the coil panel 140 in time according to the change parameters detected by the detection component 150, and rapid temperature measurement can be realized. Moreover, the requirement of cleanliness of the glass is not required to be considered when the magnetic vessel 120 is made of glass, which is convenient for users to use.

Moreover, when the coil disc 140 is in the heating state, if the liquid in the magnetic vessel 120 is emptied or has no liquid or only has little liquid, the variation parameter of the magnetic vessel 120 detected by the detection component 150 can be changed greatly in a short time or in a moment, which is beneficial for the controller 160 to control the coil disc 140 to stop working according to the variation condition of the variation parameter in time, so as to avoid the dry burning condition of the magnetic vessel 120. Compared with the prior art that sensors such as a water level detection device and the like are additionally arranged to prevent interference, the electromagnetic heating device has the advantages that parts are saved, the cost is saved, the detection assembly 150 can quickly detect the parameter change of the magnetic vessel 120 and can timely control the coil panel 140 to stop heating, the service life of the magnetic vessel 120 is ensured, and the safety of the electromagnetic heating device 100 is ensured.

In some embodiments, the controller 160 is further configured to determine a temperature of the magnetically permeable vessel 120 based on the change parameter detected by the detection assembly 150 to control a heating state of the coil disk 140 based on the temperature of the magnetically permeable vessel 120. For example, the controller 160 is configured to calculate the temperature of the magnetically permeable vessel 120 by substituting the variation parameter into a formula. For another example, the controller 160 is configured to determine the temperature of the magnetically permeable vessel 120 by referencing a table of variation parameters versus temperature.

In some embodiments, the varying parameter comprises magnetic field strength. The detection component 150 is configured to detect a magnetic field strength of the magnetic conductive vessel 120, the magnetic field strength of the magnetic conductive vessel 120 changes with a temperature of a liquid in the magnetic conductive vessel 120, and the controller 160 can obtain a real-time temperature of the magnetic conductive vessel 120 according to a preset relationship between the magnetic field strength and the temperature. When the temperature of the liquid in the magnetic vessel 120 is low, the detection component 150 detects that the magnetic field intensity of the magnetic vessel 120 is low, which indicates that the temperature of the liquid in the magnetic vessel 120 is low, and the controller 160 controls the coil disc 140 to increase the heating power of the magnetic vessel 120; when the detection assembly 150 detects that the magnetic field of the magnetically conductive vessel 120 is high, which indicates that the temperature of the magnetically conductive vessel 120 is high, the controller 160 controls the coil plate 140 to reduce the heating power or stop heating the magnetically conductive vessel 120. In addition, when the temperature of the magnetic vessel 120 is higher than the set upper limit temperature, the controller 160 controls the coil panel 140 to stop heating, or when the temperature of the magnetic vessel 120 is lower than the set lower limit, the controller 160 controls the coil panel 140 to re-heat, which is beneficial to realizing constant temperature or temperature control.

In some embodiments, the controller 160 controls the heating state of the coil disk 140 to be an increased heating power, a constant temperature, a decreased heating power, or a hot, a constant temperature, or a hot. Wherein the increasing of the heating power and the decreasing of the heating power may be stepwise increased or stepwise decreased depending on the detected variation parameter.

In particular embodiments, the magnetically permeable vessel 120 is constructed of a magnetically permeable material.

In these embodiments, the magnetic vessel 120 may be made of a magnetic material, so that the magnetic vessel 120 can adopt an integrally formed structure, which facilitates the processing of the magnetic vessel 120 and ensures the mechanical properties. In this case, the magnetically permeable surface 121 of the magnetically permeable vessel 120 is the outer surface of the vessel bottom wall.

In other embodiments, the magnetically permeable vessel 120 comprises a vessel body and a magnetically permeable layer disposed on the vessel body. Is beneficial to saving the production cost and improving the market competitiveness of the product. In this case, the magnetically conductive surface 121 of the magnetically conductive vessel 120 is the side of the magnetically conductive layer facing the coil disk 140.

In specific application, the magnetic conductive body of the non-magnetic material such as glass or ceramic can be coated with the uniformly mixed magnetic conductive layer.

Example two

On the basis of the first embodiment, the variation parameter includes at least one of a magnetic field strength variation parameter, a voltage variation parameter, an inductance variation parameter, and an impedance variation parameter.

In some specific embodiments, the variation parameter comprises a magnetic field strength variation parameter. The magnetic field strength of the magnetically permeable vessel 120 can vary with the temperature of the magnetically permeable vessel 120, thereby facilitating determination of the temperature of the magnetically permeable vessel 120 from the magnetic field strength.

In some specific embodiments, the variation parameter comprises a voltage variation parameter, and the voltage of the magnetically permeable vessel 120 is variable with a temperature variation of the magnetically permeable vessel 120, thereby facilitating determination of the temperature of the magnetically permeable vessel 120 from the voltage.

In some embodiments, the variation parameters include an inductance variation parameter and an impedance variation parameter, which facilitate the controller 160 to formulate the temperature of the magnetically permeable vessel 120 from the inductance and impedance.

In some specific embodiments, as shown in fig. 9 and 10, it is specifically defined how to calculate the temperature of the magnetic conductive vessel 120 in the case that the variation parameters include an inductance variation parameter and an impedance variation parameter. The temperature change of the magnetic conductive part of the magnetic conductive vessel 120 can cause the change of the self thermal resistance, and the thermal resistance change of the magnetic conductive part is calculated by adopting the following formula: j ω MI₁＝(jωL_z+R_z)I_z；

And then obtaining the temperature of the magnetic vessel according to the corresponding relation between the thermal resistance and the temperature. Where j x ω x M represents the mutual inductance ac impedance (j represents the imaginary part, M represents the mutual inductance, ω represents the angular frequency),I₁represents the current, L, of the coil disk 140_ZRepresenting the inductance, R, of the magnetically permeable vessel 120_ZRepresenting the current of the magnetically permeable vessel 120. j x ω x M x I₁Representing the mutual induction (M) voltage, U, of the magnetically permeable vessel 120 and the coil disk 140_SRepresents the voltage across the sensing element 150, M_ZIndicating mutual inductance between the detection assembly 150 and the magnetically conductive vessel 120, M indicating mutual inductance between the coil panel 140 and the magnetically conductive vessel 120, M₁Representing the mutual inductance of the coil disk 140 and the sensing assembly 150.

EXAMPLE III

In addition to the first and second embodiments, as shown in fig. 1, the detecting assembly 150 is disposed on one side of the magnetic vessel 120 close to the casing 130. The detection assembly 150 is brought into close proximity to the magnetically permeable vessel 120 to facilitate more sensitive and rapid detection of changing parameters of the magnetically permeable vessel 120.

In some specific embodiments, as shown in fig. 1, 7 and 8, there is a gap between the sensing surface of the sensing assembly 150 and the magnetically permeable surface 121 of the magnetically permeable vessel 120.

In these embodiments, the gap is provided between the detection surface of the detection assembly 150 and the magnetically conductive surface 121 of the magnetically conductive vessel 120. On one hand, the detection assembly 150 can ensure accurate detection, and on the other hand, the electromagnetic heating device 100 is ensured to be in a resonance working state, and meanwhile, the magnetic vessel 120 is ensured to have enough heat dissipation space.

Further, the distance between the detection surface of the detection assembly 150 and the magnetic conduction surface 121 of the magnetic conduction vessel 120 ranges from 5mm to 20 mm.

In these embodiments, the distance between the detecting surface of the detecting component 150 and the magnetic conductive surface 121 of the magnetic conductive vessel 120 determines the effect of the detecting component 150 in detecting the variation parameter. By making the distance between the detection surface of the detection component 150 and the magnetic conduction surface 121 of the magnetic conduction vessel 120 be greater than or equal to 5mm, a large amount of heat can be effectively prevented from being accumulated on the panel 110 of the electromagnetic heating device 100 due to an excessively small distance, so as to ensure that the magnetic conduction vessel 120 has a sufficient heat dissipation space, and the detection component 150 is prevented from interfering the coil plate 140, so as to ensure that the heating system is in a resonance working state. The distance between the detection surface of the detection component 150 and the magnetic conduction surface 121 of the magnetic conduction vessel 120 is less than or equal to 20mm, so that the detection effect of the detection component 150 can be ensured, and the detection component 150 with unsatisfactory detection effect caused by overlarge distance is avoided.

In other specific embodiments, as shown in fig. 7 and 8, the electromagnetic heating apparatus 100 further includes an elastic member 170 disposed in the accommodating cavity and connected to the detecting assembly 150; the detecting member 150 can contact the magnetic conductive vessel 120 under the elastic force of the elastic member 170.

In these embodiments, the elastic member 170 is disposed in the accommodating cavity, so that the detection assembly 150 can contact the magnetic vessel 120 under the elastic force of the elastic member 170, which is beneficial to ensuring that the detection assembly 150 is in close contact with the magnetic vessel 120, thereby ensuring the temperature measurement accuracy.

In a specific embodiment, in the case that the electromagnetic heating apparatus 100 further includes the panel 110, the panel 110 is provided with a through hole, and the detection assembly 150 can contact the magnetically conductive vessel 120 through the through hole under the elastic force of the elastic member 170.

In this embodiment, in a natural state, that is, without placing the magnetic vessel 120, the elastic member 170 is free from external force, and at this time, the detection assembly 150 extends out of the through hole, which is beneficial for a user to observe and determine a temperature measurement position, so as to place the magnetic vessel 120 on the detection assembly 150. In the operating state, i.e. with the magnetically permeable vessel 120 in place, the resilient member 170 is compressed and the detection assembly 150 is moved down into the through hole. When the user removes the magnetic vessel 120, the elastic member 170 is not stressed, and the detection assembly 150 is re-extended out of the through hole under the action of the elastic member 170. That is to say, the detection assembly 150 can stretch out of the through hole or move down into the through hole under the driving of the elastic member 170, so that the user can conveniently observe the position of the detection assembly 150 and place the magnetic vessel 120 on the panel 110, which is beneficial to accurately placing the magnetic vessel 120 in place, and the operation is simple and the convenience is stronger.

It should be noted that one end of the elastic member 170 is fixedly connected to the accommodating cavity, and the other end of the elastic member 170 is connected to the detecting assembly 150, so that when the detecting assembly 150 drives the elastic member 170 to move, the elastic member 170 will not be separated from the accommodating cavity, thereby preventing the elastic member 170 from being unnecessarily stretched many times to affect the service life of the elastic member 170. Specifically, the elastic member 170 is a spring.

In some specific embodiments, the detection assembly 150 is disposed at the middle of the coil disk 140; and/or the coil disk 140 is provided with a mounting hole, and the sensing member 150 is provided in the mounting hole.

In these embodiments, by disposing the detecting component 150 in the middle of the coil panel 140, the coil on the coil panel 140 is effectively prevented from being affected by the installation of the detecting component 150 because the coil panel 140 does not have a coil in the middle. Moreover, the additional arrangement of a bracket and other structures for supporting the detection assembly 150 is avoided, so that the reduction of parts and the cost are facilitated. Moreover, the coil panel 140 is closer to the bottom wall of the magnetic vessel 120, so that the distance between the detection assembly 150 disposed in the middle of the coil panel 140 and the magnetic conductive surface 121 is also closer, which is beneficial to accurately detecting the variation parameter of the magnetic conductive surface 121 under the action of the magnetic field. In addition, because the magnetic field intensity in the middle of the coil panel 140 is relatively weak, the interference of the coil panel 140 to the detection assembly 150 can be effectively reduced, and the detection accuracy of the detection assembly 150 is improved. Moreover, because the temperature in the middle of the coil panel 140 is not too high, the temperature rise of the detection assembly 150 under the action of the magnetic field generated by the power-on of the coil panel 140 can be effectively avoided, and even the detection assembly is damaged.

In addition, the coil disc 140 is provided with the mounting hole, and the detection assembly 150 is arranged in the mounting hole, so that the mounting stability of the detection assembly 150 can be ensured.

In a particular application, the sensing assembly 150 is snapped into the mounting hole. The detection member 150 is prevented from falling off the coil disk 140. Of course, the detecting member 150 may be connected to the coil panel 140 by a connector such as a pin or a screw.

In some embodiments, the detection component 150 is disposed directly below the magnetically conductive surface 121 of the magnetically conductive vessel 120; and/or the centerline of the sensing assembly 150 overlaps the centerline of the magnetically permeable surface 121 of the magnetically permeable vessel 120.

In these embodiments, the arrangement of the detection assembly 150 and the position right below the magnetic conductive surface 121 of the magnetic conductive vessel 120 are specifically limited, and the detection assembly 150 may be arranged inside the accommodating cavity, or at least partially exposed out of the accommodating cavity, so as to avoid the influence of the placement position offset of the detection assembly 150 on the detection effect, thereby ensuring the accuracy of the detection result of the detection assembly 150. By overlapping the center line of the detecting component 150 with the center line of the magnetic conductive surface 121 of the magnetic conductive vessel 120, the detecting component 150 can detect the variation parameters of the magnetic conductive vessel 120 more quickly and accurately.

Example four

On the basis of any of the above embodiments, it is further defined that the electromagnetic heating apparatus 100 further includes: the panel 110 is disposed on the housing 130, the housing 130 can support the magnetic vessel 120 through the panel 110, and the magnetic vessel 120 is detachably connected to the panel 110.

In these embodiments, it is specifically defined that the electromagnetic heating apparatus 100 further comprises a panel 110 disposed on the housing 130, the housing 130 supports the magnetically conductive vessel 120 through the panel 110, and defines a connection manner of the magnetically conductive vessel 120 and the panel 110. Through making panel 110 and magnetic conduction household utensils 120 detachable connection, when need not heat magnetic conduction household utensils 120, can dismantle magnetic conduction household utensils 120 from panel 110 for magnetic conduction household utensils 120 can take out and deposit alone, has saved occupation space, and places magnetic conduction household utensils 120 on panel 110 when needs heating, thereby made things convenient for the different user demands of magnetic conduction household utensils 120.

Of course, the detachable connection manner of the magnetic vessel 120 and the panel 110 is also beneficial for the panel 110 to support the magnetic vessel 120 with other shapes and sizes, so as to realize the multifunctional heating of the electromagnetic heating device 100.

In addition, the panel 110 and the magnetic vessel 120 can also adopt an integrated design mode, which is beneficial to processing and production, reduces the pollution of the environment to the panel 110 and improves the cleanliness of the panel 110.

Further, the electromagnetic heating apparatus 100 further includes a prompting device (not shown in the figure) electrically connected to the controller 160, and the controller 160 is further configured to control the prompting device to send out a prompting message according to the variation parameter detected by the detecting component 150.

By making the electromagnetic heating device 100 further include the prompting device, it is convenient for the user to know the operating state of the electromagnetic heating device 100 through the prompt of the prompting device. For example, the controller 160 may control the prompting device to issue the operation prompting message to prompt the user to start the normal operation state when the detecting component 150 detects the changed parameter, for example, when the detecting component 150 operates normally. When the detecting component 150 does not detect the variation parameter, for example, the detecting component 150 is separated from the magnetic vessel 120 or the detecting component 150 is not in accurate contact with the magnetic vessel 120, at this time, the placing position of the magnetic vessel 120 is deviated, the detecting component 150 is not in the projection right below the vessel bottom wall of the magnetic vessel 120, and the controller 160 may control the prompting device to send out the warning prompting information to prompt the user to correctly place the magnetic vessel 120, which is in the abnormal working state at this time.

Further, the prompt message may include a pattern, light, text, audio, and the like.

For example, the normal working state is displayed in the form of patterns or characters, and the prompting device does not make sound at the moment and does not interfere with the user. The working state sensed by the user is prompted in an audio mode, so that the user can be prompted in a noisy indoor environment conveniently. For example, a soft warning tone indicates a normal operating state, and a sharp warning tone indicates an abnormal operating state. Work state that the form suggestion user of through light sensed is convenient for dim or night in the surrounding environment, can not disturb the user this moment, can also play the effect of suggestion. It will be appreciated that the different forms described above may be used in combination. Through different forms of prompt messages, the working state of the electromagnetic heating device 100 is prompted to the user when the surrounding environment is different, so that the user can know the working state of the electromagnetic heating device 100, and error operation can be corrected in time when the electromagnetic heating device is in an abnormal working state.

Of course, in some other embodiments, the electromagnetic heating apparatus 100 may not include the panel 110, and the magnetic vessel 120 may be directly disposed on the housing 130. The magnetically conductive vessel 120 may be fixedly disposed on the housing 130, for example, the magnetically conductive vessel 120 may be integrally formed with the housing 130, in other words, a portion of the housing 130 is configured as the magnetically conductive vessel 120, and the magnetically conductive vessel 120 and the housing 130 together form the seat-type electromagnetic heating apparatus 100; the magnetically permeable vessel 120 may also be removably attached to the housing 130.

EXAMPLE five

In addition to the fourth embodiment, as shown in fig. 2, the panel 110 is further limited to be provided with a mounting groove 111, and the bottom of the magnetic vessel 120 is embedded in the mounting groove 111.

In these embodiments, a connection of the faceplate 110 to the magnetically permeable vessel 120 is defined. Specifically, the panel 110 is provided with a mounting groove 111, and the shape of the mounting groove 111 is matched with the bottom of the magnetic vessel 120, so that the bottom of the magnetic vessel 120 can be embedded in the mounting groove 111. The magnetic conduction vessel 120 is convenient to assemble, installation and removal of the magnetic conduction vessel 120 are facilitated, and the bottom of the magnetic conduction vessel 120 is facilitated to be quickly aligned to the position of the installation groove 111 and embedded into the installation groove 111. Moreover, the shape of the mounting groove 111 is matched with the shape of the bottom of the magnetic vessel 120, and after the bottom of the magnetic vessel 120 is embedded into the mounting groove 111, the mounting groove and the bottom are tightly matched, so that no gap exists, better heating effect is realized, and meanwhile, the phenomenon that dirt is contained in the gap to cause difficulty in cleaning is avoided.

Specifically, panel 110 and magnetic conduction household utensils 120 adopt split type design for magnetic conduction household utensils 120 is lighter, does benefit to the user and emptys liquid, and split type design also does benefit to the user and washs magnetic conduction household utensils 120 inside moreover, has promoted user and has used experience.

In some embodiments, as shown in FIG. 2, a portion of the panel 110 is recessed into the receiving cavity to form a mounting slot 111.

In these embodiments, a portion defining the panel 110 is recessed into the receiving cavity to form a mounting slot 111. Specifically, the mounting groove 111 formed by recessing downwards is matched with the shape of the bottom of the magnetic vessel 120, so that the bottom of the magnetic vessel 120 can be mounted in the mounting groove 111 recessed downwards on the panel 110, and the mounting and limiting functions can be achieved. The design of forming the mounting groove 111 by sinking downwards does not occupy extra production cost, and the magnetic vessel 120 is produced and processed according to the bottom shape without adding extra dies, so that the magnetic vessel is suitable for mass production.

In other embodiments, as shown in FIG. 5, panel 110 is provided with at least one protrusion 112, and at least one protrusion 112 encloses a mounting slot 111.

In these embodiments, at least one protrusion 112 is disposed on the panel 110, and the at least one protrusion 112 encloses to form the installation slot 111, so that the bottom of the magnetic vessel 120 is located within the range enclosed by the at least one protrusion 112, thereby completing the installation of the magnetic vessel 120. Specifically, the number of the at least one protruding portion 112 is not easy to be set too small, the too small protruding portion 112 cannot achieve a good limiting installation effect, meanwhile, the number of the protruding portions 112 is not easy to be set too large, the excessive protruding portion 112 causes unnecessary material waste, and increases the production cost, and the excessive protruding portion 112 is not needed at the bottom of the magnetic vessel 120. The number of the at least one protrusion 112 may be two, and may be three. The two protrusions 112 are circular arc-shaped or circular ring-shaped, wherein the center line of the circular arc-shaped or circular ring-shaped is overlapped with the center line of the magnetic conductive surface 121 of the magnetic conductive vessel 120, and the two protrusions 112 are symmetrically arranged with respect to the center line of the magnetic conductive surface 121 of the magnetic conductive vessel 120. The three protrusions 112 are circular arc-shaped or circular ring-shaped, wherein the center line of the circular arc-shaped or circular ring-shaped is overlapped with the center line of the magnetic conductive surface 121 of the magnetic conductive vessel 120, and the three protrusions 112 are arranged at equal intervals with respect to the center line of the magnetic conductive surface 121 of the magnetic conductive vessel 120, so that the distance between any two adjacent protrusions 112 is equal. The bottom of the magnetic vessel 120 is provided with a limit mounting function by the at least one protrusion 112.

It is understood that the shape of the protruding portion 112 may be adaptively adjusted according to the shape of the bottom of the magnetic vessel 120, and may be a long strip, a column, or other shapes.

Specifically, the protruding portion 112 and the panel 110 may be formed integrally, which satisfies the structural strength and the connection strength of the protruding portion 112, has good mechanical properties, and avoids unnecessary structural connection.

In some specific embodiments, the depth of the mounting groove 111 ranges from 0.5mm to 30 mm.

In these embodiments, the range of values of the groove depth of the mounting groove 111 is defined. The depth of the mounting groove 111 directly affects the mounting effect of the bottom of the magnetic vessel 120. Specifically, the value of the groove depth is not too large, and the value of the groove depth is too large, so that the panel 110 needs to produce an excessively deep mounting groove 111, thereby affecting the mounting space of other elements inside the panel 110 and affecting the heating and heat dissipation effects. Meanwhile, the groove depth value is not easy to be too small, and when the groove depth value is too small, a good installation limiting function cannot be achieved, so that the use experience of a user is influenced. Therefore, the groove depth is set within the range of 0.5mm to 30mm and is greater than 0.5mm, so that the installation and limiting effects of the bottom of the magnetic vessel 120 can be guaranteed. The groove depth is less than 30mm, so that the installation space of the internal elements of the panel 110 is ensured, and the heating and heat dissipation effects are ensured.

EXAMPLE six

Different from the fifth embodiment, one of the bottom walls of the vessel of the panel 110 and the magnetic vessel 120 is provided with a limiting groove, and the other is provided with a limiting protrusion, and the limiting groove is matched with the limiting protrusion.

In these embodiments, a connection of the faceplate 110 and the magnetically permeable vessel 120 is defined. Specifically, one of the bottom walls of the vessel of the panel 110 and the magnetic vessel 120 is provided with a limiting groove, and the other is provided with a limiting protrusion, wherein the limiting groove is matched with the limiting protrusion. Specifically, a limiting groove is formed in the bottom wall of the vessel of the magnetic vessel 120, and a matched limiting protrusion is formed on the panel 110, or a matched limiting protrusion is formed in the bottom wall of the vessel of the magnetic vessel 120, and a matched limiting groove is formed in the panel 110, so that accurate installation of the magnetic vessel 120 and the panel 110 is facilitated.

Taking the example of the vessel bottom wall of the magnetic vessel 120 being provided with a limiting groove, the panel 110 is provided with a matching limiting protrusion, specifically, in the installation process of the magnetic vessel 120, the limiting groove at the bottom of the magnetic vessel 120 is aligned with the limiting protrusion position on the panel 110, and the magnetic vessel 120 is moved downwards until the limiting protrusion moves into the limiting groove, thereby completing the installation of the magnetic vessel 120. The magnetic vessel 120 is stably connected, and the assembly is convenient and rapid.

In some embodiments, as shown in fig. 3, the first stopper protrusion 114a is provided at an edge of the bottom wall of the vessel.

In these embodiments, the position where the first stopper projection 114a is provided is defined, and the first stopper projection 114a is provided at the edge of the bottom wall of the vessel. Specifically, a first limiting groove 113a is disposed at a position corresponding to the bottom wall edge of the vessel corresponding to the panel 110, so that the magnetic conductive vessel 120 is mounted by the first limiting protrusion 114a disposed at the bottom wall edge of the vessel and the first limiting groove 113a disposed on the panel 110. Specifically, the first limiting protrusion 114a and the vessel bottom wall or the vessel side wall of the magnetic vessel 120 are integrally formed, so that the integrity of the vessel bottom wall is ensured, the structural strength of the vessel bottom wall is satisfied, the mechanical property is good, and unnecessary component connection is avoided.

In other embodiments, as shown in FIG. 4, the second limiting groove 113b is disposed in the middle of the bottom wall of the vessel.

In these embodiments, the second limiting groove 113b is disposed in the middle of the bottom wall of the vessel, and the position of the panel 110 corresponding to the middle of the bottom wall of the vessel is disposed on the second limiting protrusion 114b matched with the second limiting groove 113b, so that the user can visually observe the position of the second limiting protrusion 114b, and the magnetic vessel 120 can be mounted more accurately. Specifically, the second limiting groove 113b and the vessel bottom wall of the magnetic vessel 120 are of an integrally formed structure, so that the integrity of the vessel bottom wall is ensured, the structural strength of the vessel bottom wall is met, the mechanical property is good, and unnecessary component connection is avoided.

Further, the limiting protrusions can be in a sectional annular shape or an end-to-end annular structure. The sectional type limiting convex quantity is not easy to set too little, the too little limiting convex can not play a good limiting installation effect, meanwhile, the limiting convex quantity is not easy to set too much, the limiting convex leads to unnecessary material waste, the production cost is increased, and the limiting function is realized without too much limiting convex. The number of the limiting protrusions can be two or three. The two limiting protrusions are arc-shaped or circular-ring-shaped, wherein the center line of the circular or circular arc-shaped is overlapped with the center line of the magnetic conductive surface 121 of the magnetic conductive vessel 120, and the two limiting protrusions are symmetrically arranged about the center line of the magnetic conductive surface 121 of the magnetic conductive vessel 120. The three limiting protrusions are arc-shaped or circular-ring-shaped, wherein the center line of the circular or circular arc-shaped is overlapped with the center line of the magnetic conductive surface 121 of the magnetic conductive vessel 120, and the three limiting protrusions are arranged at equal intervals relative to the center line of the magnetic conductive surface 121 of the magnetic conductive vessel 120, so that the distance between any two adjacent limiting protrusions is equal.

It can be understood that the shape of the limiting protrusion can be adaptively adjusted according to the shape of the bottom of the magnetic conductive surface 121, and the limiting protrusion can be in a strip shape, a column shape, or other shapes.

In some embodiments, the depth of the retaining groove ranges from 0.5mm to 30 mm.

In these embodiments, a range of values for the groove depth of the spacing groove is defined. The depth of the limiting groove directly affects the limiting effect of the bottom of the magnetic vessel 120. Specifically, the groove depth is not easy to be excessively large, and the groove depth is excessively large, so that the grooving depth is excessively large, and the waste of materials and a production process is caused. Meanwhile, the groove depth value is not easy to be too small, and when the groove depth value is too small, good installation and limiting functions cannot be achieved, so that the use experience of a user is influenced. Therefore, the groove depth is set within the range of 0.5mm to 30mm and is greater than 0.5mm, so that the installation and limiting effects of the bottom of the magnetic vessel 120 can be guaranteed. The groove depth is less than 30mm, so that the installation space of the internal elements of the panel 110 is ensured, and the heating and heat dissipation effects are ensured.

EXAMPLE seven

On the basis of the fourth to sixth embodiments, as shown in fig. 1 and 6, the magnetic conductive vessel 120 is further defined to include a protective sleeve 180 disposed on the bottom outer surface of the magnetic conductive vessel 120.

In these embodiments, the magnetically permeable vessel 120 is defined to include a protective sleeve 180, the protective sleeve 180 being of a suitable construction to the faceplate 110. The protective sleeve 180 is disposed on the outer surface of the bottom of the magnetic vessel 120, so as to protect the magnetic surface 121. Specifically, in the use process of the electromagnetic heating device, the magnetic conduction vessel 120 is moved or installed to wear the bottom of the magnetic conduction vessel 120 more or less, and the protective sleeve 180 is arranged to effectively protect the bottom of the magnetic conduction vessel 120, i.e., the magnetic conduction surface 121 of the magnetic conduction vessel 120 is protected, so that the service life of the electromagnetic heating device 100 is prolonged, and the market competitiveness of the product is improved.

Specifically, the material of the protective sleeve 180 may be made of a wear-resistant material, so as to effectively prolong the service life of the electromagnetic heating device 100.

In some specific embodiments, as shown in fig. 6, the protective sheath 180 is provided with a first connection portion 181, the panel 110 is provided with a second connection portion 182, and the first connection portion 181 and the second connection portion 182 are connected by magnetic attraction; at least one of the first connection portion 181 and the second connection portion 182 is a permanent magnet.

In these embodiments, the first connecting portion 181 is disposed on the protecting cover 180, the second connecting portion 182 is disposed on the panel 110, and the protecting cover 180 can be magnetically attracted on the panel 110 by the magnetic attraction force between the first connecting portion 181 and the second connecting portion 182, so as to drive the magnetic vessel 120 to be magnetically attracted on the panel 110. Specifically, the first connection portion 181 and the second connection portion 182 are disposed at suitable positions. When installing magnetic conduction household utensils 120, place magnetic conduction household utensils 120 on panel 110, at the placing process, the distance between first connecting portion 181 and second connecting portion 182 reduces gradually, when the distance reduces to both can produce magnetic attraction, first connecting portion 181 is attracted by second connecting portion 182 for protective sheath 180 magnetism is inhaled on panel 110, thereby drives magnetic conduction household utensils 120 magnetism and inhales on panel 110, with the installation of accomplishing magnetic conduction household utensils 120.

Specifically, when the magnetic vessel 120 needs to be removed, the magnetic vessel 120 is pulled out by overcoming the magnetic force. The magnetic-conductive vessel 120 is connected in a magnetic-suction mode, is simple and convenient, does not need an additional connecting part, has small change, is beneficial to reducing the process flow, ensures the process strength and saves the product cost. Meanwhile, the installation of the permanent magnet does not affect the surface flatness of the protective sleeve 180 and the panel 110, so that the appearance attractiveness of the protective sleeve 180 and the panel 110 is ensured, and the market competitiveness is improved.

Moreover, the magnetic vessel 120 and the panel 110 are connected together through the magnetic attraction between the first connection portion 181 and the second connection portion 182, so that the magnetic vessel 120 can be placed in place in the process of being placed on the panel 110, the first connection portion 181 can directly move to the position corresponding to the second connection portion 182, and the magnetic vessel 120 is ensured to be rapidly installed in place.

Specifically, at least one of the first and second connection portions 181 and 182 is a permanent magnet. The permanent magnet is not easy to lose magnetism and magnetize, can keep magnetism for a long time, and ensures the service life of the first connecting part 181 and the second connecting part 182.

Of course, at least one of the first connection portion 181 and the second connection portion 182 may be made to be a magnetic conductor, which has a small magnetic resistance and is easy to pass through magnetic flux, so that the magnetic attraction force is better transmitted in the process of gradually reducing the distance between the first connection portion 181 and the second connection portion 182. It is also possible to make both the first connection portion 181 and the second connection portion 182 permanent magnets so as to better generate magnetic attraction force.

Further, the number of the first connecting portions 181 is equal to that of the second connecting portions 182, and the arrangement positions are suitable. The number of the first connection portions 181 and the second connection portions 182 may be one or two. The specific arrangement number and arrangement position can be adaptively adjusted according to the electromagnetic heating device 100 with different structures.

Example eight

1/5 that is defined on the basis of any of the above embodiments, the area of the projection surface of the coil panel 140 on the magnetic conductive surface 121 of the magnetic conductive vessel 120 is not smaller than the area of the magnetic conductive surface 121; and/or the centre line of the coil disc 140 overlaps the centre line of the magnetically conductive surface 121 of the magnetically conductive vessel 120.

In these embodiments, the size of the projected area of the coil disk 140 on the magnetically permeable surface 121 of the magnetically permeable vessel 120 determines the heating area of the coil disk 140. By making the area of the projection surface of the coil disk 140 on the magnetic conductive surface 121 of the magnetic conductive vessel 120 not less than 1/5, the coil disk 140 can sufficiently heat the magnetic conductive surface 121 and sufficiently heat the magnetic conductive vessel 120.

By overlapping the center line of the coil disk 140 with the center line of the magnetically conductive surface 121 of the magnetically conductive vessel 120. So that the center of the coil panel 140 is aligned with the center of the magnetic vessel 120, thereby ensuring that the magnetic vessel 120 can be uniformly heated when the coil panel 140 works.

In the present application, the term "plurality" means two or more unless expressly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (19)

1. An electromagnetic heating device, comprising:

a magnetically conductive vessel;

a housing capable of supporting the magnetically permeable vessel, the housing having an accommodation cavity therein;

the coil panel is arranged in the accommodating cavity and used for heating the magnetic vessel;

the detection assembly is used for detecting a variation parameter of the magnetic vessel under the action of a magnetic field generated by electrifying the coil panel so as to determine the temperature of the magnetic vessel, wherein the variation parameter is not the temperature;

and the controller is electrically connected with the coil panel and the detection assembly and is used for controlling the heating state of the coil panel according to the temperature of the magnetic vessel.

2. Electromagnetic heating device according to claim 1,

the variation parameter includes at least one of a magnetic field strength variation parameter, a voltage variation parameter, an inductance variation parameter, and an impedance variation parameter.

3. Electromagnetic heating device according to claim 1 or 2,

the detection assembly is arranged on one side of the magnetic vessel close to the shell.

4. Electromagnetic heating device according to claim 3,

and a gap is formed between the detection surface of the detection assembly and the magnetic conduction surface of the magnetic conduction vessel.

5. Electromagnetic heating device according to claim 4,

the range of the distance between the detection surface of the detection assembly and the magnetic conduction surface of the magnetic conduction vessel is 5mm to 20 mm.

6. The electromagnetic heating apparatus according to claim 3, characterized in that the electromagnetic heating apparatus further comprises:

the elastic piece is arranged in the accommodating cavity and is connected with the detection assembly;

the detection assembly can be contacted with the magnetic conduction vessel under the elastic force action of the elastic piece.

7. Electromagnetic heating device according to claim 3,

the detection assembly is arranged in the middle of the coil panel; and/or

The coil panel is provided with the mounting hole, detection component set up in the mounting hole.

8. Electromagnetic heating device according to claim 3,

the detection assembly is arranged right below the magnetic conduction surface of the magnetic conduction vessel; and/or

The central line of the detection assembly is overlapped with the central line of the magnetic conduction surface of the magnetic conduction vessel.

9. The electromagnetic heating apparatus according to claim 1, characterized in that the electromagnetic heating apparatus further comprises:

the panel is arranged on the shell, and the shell can support the magnetic vessel through the panel;

the magnetic vessel is detachably connected with the panel.

10. The electromagnetic heating apparatus according to claim 9, characterized in that the electromagnetic heating apparatus further comprises:

and the prompting device is electrically connected with the controller, and the controller is also used for controlling the prompting device to send out prompting information according to the change parameters detected by the detection component.

11. Electromagnetic heating device according to claim 9,

the panel is provided with the mounting groove, the bottom embedding of magnetic conduction household utensils sets up in the mounting groove.

12. Electromagnetic heating device according to claim 11,

a part of the panel is sunken into the accommodating cavity to form the mounting groove; or

The panel is provided with at least one bulge, at least one bulge encloses to close and forms the mounting groove.

13. Electromagnetic heating device according to claim 11,

the value range of the groove depth of the mounting groove is 0.5mm to 30 mm.

14. Electromagnetic heating device according to claim 9,

one of the panel and the vessel bottom wall of the magnetic conduction vessel is provided with a limiting groove, the other is provided with a limiting protrusion, and the limiting groove is matched with the limiting protrusion.

15. Electromagnetic heating device according to claim 14,

the limiting protrusion is arranged on the edge of the bottom wall of the vessel; or

The limiting groove is arranged in the middle of the bottom wall of the vessel.

16. Electromagnetic heating apparatus according to any one of claims 9 to 15,

the magnetic conduction household utensils comprise protective sleeves and are arranged on the outer surfaces of the bottoms of the magnetic conduction household utensils.

17. Electromagnetic heating device according to claim 16,

the protective sleeve is provided with a first connecting part, the panel is provided with a second connecting part, and the first connecting part and the second connecting part are connected through magnetic attraction;

wherein at least one of the first connection portion and the second connection portion is a permanent magnet.

18. Electromagnetic heating device according to claim 1 or 2,

1/5, the area of the projection surface of the coil panel on the magnetic conduction surface of the magnetic conduction vessel is not less than the area of the magnetic conduction surface; and/or

The central line of the coil panel is overlapped with the central line of the magnetic conduction surface of the magnetic conduction vessel.

19. Electromagnetic heating device according to claim 1 or 2,

the magnetic vessel is made of magnetic materials; or

The magnetic conduction household utensils comprise a household utensils body and a magnetic conduction layer arranged on the household utensils body.

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