CN214510749U - Universal electromagnetic electric heating hot pot - Google Patents

Abstract

The utility model relates to a universal electromagnetic electric heating hot pot, which comprises a pot body for storing a heated body, a coil group for generating induction current by utilizing the electromagnetic induction principle, an electric heating component for heating the heated body, a cooling fan for cooling and a light emitting component; the electric heating component is arranged on the pot body; the electric heating component, the heat radiation fan and the light emitting component are respectively connected with the coil group through circuits so as to obtain induced current generated by the coil group; the coil assembly and the heat dissipation fan are respectively positioned on the heat dissipation air duct, and the air inlet end and the air outlet end of the heat dissipation air duct are respectively communicated with the outside. The electromagnetic electric heating hot pot effectively solves the safety problem of all the existing electromagnetic oven products in the market, eliminates potential safety hazards, and overcomes the defects and shortcomings of the existing electromagnetic ovens.

Description

Universal electromagnetic electric heating hot pot

Technical Field

The utility model relates to an electric heating device, in particular to a universal electromagnetic electric heating hot pot.

Background

The heating modes of the existing chafing dish stoves on the market comprise electromagnetic heating, light wave heating and the like. Wherein, the electromagnetic heating mode needs to depend on an electromagnetic oven, and the chafing dish needs to be a metal pot (generally a stainless steel pot); the heating principle is as follows: a coil on the induction cooker is electrified to generate a magnetic field, and the pot body is placed in the magnetic field to enable the bottom of the iron-containing metal pot to generate eddy current to generate heat to realize heating; however, the heating method requires the metal pot to be directly placed on the induction cooker, so that the heat (generally over 100 ℃) at the bottom of the metal pot is directly transferred to the induction cooker, the surface temperature of the induction cooker is high, scalding or fire accidents are easy to occur, and the news of scalding and fire disasters are frequently seen due to improper use of the induction cooker; in addition, the metal pot that matches with electromagnetism stove in the market and use does not generally have safe structure, if: the dry burning prevention structure leads the existing metal pot to be easily damaged due to the dry burning phenomenon frequently, and has low safety factor; therefore, related safety accidents are easily caused by improper operation of the induction cooker, great potential safety hazards exist, common defects and shortcomings of the existing induction cooker products all over the world exist, and the problem that breakthrough is difficult to overcome is solved. The light wave heating mode is to directly heat the pot body by utilizing high-temperature far infrared rays, and because the light wave furnace needs to generate heat at the same time, the surface temperature of the light wave furnace is also very high after the light wave furnace is used, and accidents such as scalding or fire disasters are easy to occur.

Therefore, further improvements to existing chafing dish products are needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the not enough of above-mentioned prior art existence, and provide a general type electromagnetism electric heat chafing dish, this electromagnetism electric heat chafing dish utilizes the electromagnetic induction principle to supply with the electric energy for electric heating element, and then heats through electric heating element, because the electromagnetism stove can be kept away from to the pot body under this structure, so the heat on the pot body is difficult to transmit to the electromagnetism stove can not be too high in order to guarantee its surface temperature, effectively solve the safety problem that all current electromagnetism stove products exist on the market, and eliminate the potential safety hazard, overcome the defect and the not enough that current electromagnetism stove exists.

The purpose of the utility model is realized like this:

a universal electromagnetic electric hot pot comprises a pot body for storing a heated body, a coil group for generating induction current by utilizing the principle of electromagnetic induction, an electric heating component for heating the heated body, a cooling fan for cooling and a light-emitting component; the electric heating component is arranged on the pot body; the electric heating component, the heat radiation fan and the light emitting component are respectively connected with the coil group through circuits so as to obtain induced current generated by the coil group; the coil assembly and the heat dissipation fan are respectively positioned on the heat dissipation air duct, and the air inlet end and the air outlet end of the heat dissipation air duct are respectively communicated with the outside.

A bottom cover is arranged at the bottom of the pot body, and an accommodating cavity for accommodating the coil group and/or the electric heating component and/or the heat radiation fan and/or the light emitting component is arranged between the pot body and the bottom cover; the heat dissipation air duct is arranged on the accommodating cavity.

And a heat insulation layer and/or a magnetic insulation layer are/is arranged between the coil group and the electric heating component.

The accommodating cavity is provided with a heat insulation disc, and the heat insulation disc is positioned between the coil group and the electric heating component; the heat insulation layer and/or the magnetic isolation layer are/is arranged on the heat insulation disc; the heat insulation disc divides the accommodating cavity into the heat dissipation air duct.

And the bottom cover is provided with an air inlet communicated with the air inlet end of the heat dissipation air duct and an air outlet communicated with the air outlet end of the heat dissipation air duct.

The coil group comprises a first power receiving coil and a second power receiving coil, wherein the first power receiving coil generates high-voltage induced current by using the electromagnetic induction principle, and the second power receiving coil generates low-voltage induced current by using the electromagnetic induction principle; the electric heating component is electrically connected with the first power receiving coil to obtain high-voltage induced current generated by the first power receiving coil; and the heat radiation fan and/or the light emitting component are electrically connected with the second power receiving coil through the rectifying circuit so as to obtain low-voltage induced current generated by the second power receiving coil.

The capacitor device and the first power receiving coil form a resonance circuit; the capacitor device is connected in parallel with the first power receiving coil.

Still including setting up the magnetic conduction strip on first powered coil, the magnetic conduction strip sets up more than the piece and distributes on the side that first powered coil faced the pot body.

The temperature controller is used for monitoring the temperature of the pot body; the temperature controller is connected to a circuit between the electric heating component and the coil group; the temperature controller is in a closed state in a normal state, and enters an open state when the monitoring temperature reaches or exceeds a set temperature, so that a circuit in which the temperature controller is arranged is broken.

The power supply system also comprises a power connection device electrically connected with the urban power through a power line and a change-over switch for switching a wireless power supply mode or a wired power supply mode; the first power receiving coil and the power connection device are respectively connected with the electric heating component through a change-over switch circuit so as to be switched to supply power to the first power receiving coil or the power connection device through the change-over switch.

The utility model has the advantages as follows:

the coil set is arranged on the pot body and is electrically connected with a high-voltage load (such as an electric heating component) and/or a low-voltage load (such as a luminous component), when the pot body is placed on the induction cooker, the coil on the induction cooker is used as an electromagnetic power transmission coil to be matched with the coil set, so that the coil set generates induction current and voltage and supplies the induction current and the voltage to the high-voltage load and/or the low-voltage load for use, and finally, a corresponding functional effect is obtained; specifically, the electric heating component is electrically connected with the first power receiving coil to obtain high-voltage induced current generated by the first power receiving coil, and the light emitting component is electrically connected with the second power receiving coil to obtain low-voltage induced current generated by the second power receiving coil; the heating mode of the electromagnetic electric heating hot pot is safe and effective, can be matched with most 350-3500W household induction cookers on the market for use, and has strong universality and low production/use cost; furthermore, the coil on the induction cooker has the using effect that the coil group generates electric energy, and the electric heating component on the cooker body can be far away from the induction cooker, so that heat generated by the electric heating component during working is difficult to transfer to the surface of the induction cooker, scalding or fire accidents caused by overhigh surface temperature (below 55 ℃) of the induction cooker are avoided, the problems of overhigh surface temperature, large potential safety hazard and the like of all the existing induction cookers are effectively solved, and the induction cooker is a major breakthrough in the application field of the induction cooker; in order to reduce the temperature of the surface of the induction cooker and the bottom of the cooker body, a heat dissipation air channel is arranged between the cooker body and the induction cooker, convection air can be formed in the heat dissipation air channel by arranging a heat dissipation fan, an effective heat dissipation and cooling effect is further achieved, and scalding accidents are effectively avoided.

In addition, the temperature controller is arranged to monitor the heating condition of the pot body, so that the heating temperature of the pot body is effectively controlled to be 50-270 ℃, when the pot body is in a dry-burning state, the temperature controller immediately responds to cut off a power supply circuit of the electric heating component, so that the dry-burning is effectively avoided, the use safety is greatly improved, the dry-burning defects of all the existing induction cookers are effectively overcome, and the induction cooker is a major breakthrough in the application field of the induction cooker.

Drawings

Fig. 1 is an assembly view of an electromagnetic and electric hot pot according to a first embodiment of the present invention.

Fig. 2 is a sectional view of the electromagnetic electric chafing dish in the first embodiment of the present invention.

Fig. 3 is an exploded view of the electromagnetic and electric chafing dish in the first embodiment of the present invention.

Fig. 4 is a schematic circuit diagram of a high-voltage circuit according to a first embodiment of the present invention.

Fig. 5 is a schematic circuit diagram of a low-voltage circuit according to a first embodiment of the present invention.

Fig. 6 is a schematic circuit diagram of a high-voltage circuit according to a second embodiment of the present invention.

Fig. 7 is a schematic circuit diagram of a high-voltage circuit according to a third embodiment of the present invention.

Detailed Description

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

First embodiment

Referring to fig. 1 to 5, the general electromagnetic electric hot pot according to the present embodiment includes a pot body 1 for storing a heated body (e.g., liquid, solid/semi-solid food material, etc.), a coil assembly for generating an induced current by using the principle of electromagnetic induction, an electric heating component 3 for heating the heated body, a cooling fan 5 for cooling, and a light emitting component 10 for emitting decoration and/or indication light; the electric heating component 3 is arranged at the bottom of the pot body 1; the electric heating component 3, the heat radiation fan 5 and the light-emitting component 10 are respectively connected with the coil group by circuits to obtain induction current generated by the coil group; the coil assembly and the heat dissipation fan 5 are respectively located on the heat dissipation air duct a, and an air inlet end and an air outlet end of the heat dissipation air duct a are respectively communicated with the outside. The electromagnetic electric heating hot pot related to the embodiment is characterized in that the coil group is arranged on the pot body 1 to electrically connect the electric heating component 3 and the luminous component 10, when the pot body 1 is placed on the existing induction cooker in the market, the coil on the induction cooker is used as an electromagnetic power transmission coil to be matched with the coil group, so that the coil group generates induction current and voltage and supplies the induction current and voltage to the electric heating component 3 and the luminous component 10, and finally, the heating and decoration indicating effects are achieved; the heating mode of the electromagnetic electric heating hot pot is safe and effective, can be matched with most 350-3500W household induction cookers on the market for use, and has strong universality and low production/use cost; the coil on the induction cooker has the using effect that the coil group generates electric energy, and the electric heating component 3 on the pot body 1 can be far away from the induction cooker, so that heat generated by the electric heating component 3 during working is difficult to transfer to the surface of the induction cooker, scalding or fire accidents caused by overhigh surface temperature (below 55 ℃) of the induction cooker are avoided, and the problems of overhigh surface temperature, large potential safety hazard and the like of all the existing induction cookers are effectively solved; in order to further reduce the temperature on the surface of the induction cooker and the bottom of the hot pot 1, a heat dissipation air channel is arranged between the pot body 1 and the induction cooker, convection air can be formed in the heat dissipation air channel a by arranging the heat dissipation fan 5, and then an effective heat dissipation and cooling effect is achieved, and scalding accidents are effectively avoided.

Further, the bottom of the pot body 1 is provided with a bottom cover 12, the bottom cover 12 covers the bottom of the pot body 1, so that a closed accommodating cavity for accommodating the coil assembly, the electric heating component 3, the cooling fan 5 and the light emitting component 10 is arranged between the pot body 1 and the bottom cover 12; the heat dissipation air duct a is arranged in the accommodating cavity; the electric heating component 3 in the embodiment is fixedly arranged at the bottom of the pot body 1.

Further, a heat insulation layer 4 is arranged between the coil group and the electric heating component 3; the electric heating component 3, the heat insulation layer 4 and the coil group are sequentially arranged from top to bottom; the heat insulation layer 4 can effectively prevent heat from dissipating downwards to avoid overhigh temperature at the bottom of the electromagnetic electric hot pot, and simultaneously ensure that the heat rises to fully utilize the heat; optionally, in order to ensure that the coil assembly stably receives the magnetic field to generate stable induced voltage and current, a magnetic shielding layer (not labeled) may be disposed above the coil assembly; however, the heat insulating layer 4 and the magnetic shield layer may be respectively set according to actual requirements of products.

Further, a heat insulation disc 8 is arranged in the accommodating cavity, and the heat insulation disc 8 is positioned between the electric heating component 3 and the coil group; the two heat insulation layers 4 are arranged in the embodiment, and the two heat insulation layers 4 are respectively arranged at the upper part or the lower part of the heat insulation disc 8, so that the heat insulation effect is more obvious; the heat insulation disc 8 divides the accommodating cavity into a heat dissipation air duct a.

Further, the bottom cover 12 is provided with an air inlet 1201 communicated with the air inlet end of the heat dissipation air duct a and an air outlet 1202 communicated with the air outlet end of the heat dissipation air duct a, wherein the air inlet 1201 is arranged at the bottom of the bottom cover 12, and the air outlet 1202 is arranged at the side of the bottom cover 12.

Further, the coil assembly includes a first power receiving coil 2 generating a high voltage induced current by using the principle of electromagnetic induction, and a second power receiving coil 18 generating a low voltage induced current by using the principle of electromagnetic induction; the electric heating component 3 (or other high-voltage load) is electrically connected with the first power receiving coil 2 to obtain high-voltage induction current generated by the first power receiving coil 2; the heat radiation fan 5 and the light emitting component 10 (or other low-voltage loads) are respectively electrically connected with the second power receiving coil 18 through a rectifying circuit so as to obtain low-voltage induced current generated by the second power receiving coil 18; the heat dissipation fan 5 is disposed in the middle of the coil assembly.

Further, a lamp bracket 14 is arranged between the pot body 1 and the bottom cover 12, the lamp bracket 14 is located in the accommodating cavity, the light emitting component 10 in this embodiment is an LED strip and is arranged around the lamp bracket 14, wherein the lamp bracket 14 and/or the bottom cover 12 is made of a light transmitting material. The low voltage load may be an indicator lamp, a buzzer, etc., in addition to the light emitting part 10.

Furthermore, the electromagnetic electric hot pot also comprises a capacitance device 7 which forms a resonance circuit with the first power receiving coil 2, and the capacitance device 7 is connected with the first power receiving coil 2 in parallel; since the capacitor device 7 is easily affected by heat, in order to avoid the influence of high temperature generated by the electric heating component 3 on the normal operation of the capacitor device 7, a heat insulation layer 4 is arranged between the capacitor device 7 and the electric heating component 3, in this embodiment, the capacitor device 7 and the first power receiving coil 2 are arranged on the same side of the heat insulation layer 4, and the first power receiving coil 2 and the capacitor device 7 are arranged side by side; this embodiment makes system and electromagnetism stove produce resonance through the inductance value that sets up the capacity value of capacitance device 7 and first receiving coil 2, and then makes the high-voltage induced current that first receiving coil 2 produced increase effect, and electric heating element 3's power is promoted to guarantee that electric heating element 3 possesses sufficient power heating heated body. However, in addition to the first power receiving coil 2, another capacitor device 7 and the second power receiving coil 18 may be provided to constitute a resonant circuit.

Further, the system further includes a magnetic conductive strip 16 disposed on the top of the first power receiving coil 2, in this embodiment, the magnetic conductive strip 16Is in the shape of a stripSix pieces of the first power receiving coil 2 are annularly and uniformly distributed on the side surface of the first power receiving coil 2 facing the pot body 1; the magnetic conductive strip 16 can increase the inductance of the first power receiving coil 2, and simultaneously change the appearance of the first power receiving coil 2 facing the electromagnetic field on one side of the pot body 1, so that more energy is concentrated on the coil to play a role in collecting magnetic energy, and therefore, the high-voltage induced current generated by the first power receiving coil 2 can be further increased in efficiency, and the power of the electric heating component 3 is increased to ensure that the electric heating component 3 has enough power to heat a heated body.In addition, the magnetic conductive strips 16 may be triangular and arranged to cover the entire area.

Furthermore, the electromagnetic electric hot pot also comprises a temperature controller 11 for monitoring the temperature of the pot body 1, wherein the temperature controller 11 is fixedly arranged on the outer bottom wall of the pot body 1; the temperature controller 11 is connected to a circuit between the electric heating component 3 and the first power receiving coil 2; the temperature controller 11 is normally closed, and enters an open state when the monitored temperature reaches or exceeds a set temperature, so that the circuit is broken. The temperature controller 11 is arranged to control the heating temperature of the pan body 1 to be between 50 ℃ and 270 ℃, preferably more than 200 ℃; the temperature controller 11 is normally closed, and is opened when the monitored temperature reaches or exceeds a set temperature (generally referred to as a dry-fire state), so that the power supply circuit of the electric heating component 3 is disconnected, and the temperature controller 11 can be replaced by a thermal switch according to the actual needs of the product. Specifically, through setting up temperature controller 11, the effectual monitoring pot body 1 the condition of being heated, when the pot body 1 was in the dry combustion method state, temperature controller 11 immediately responded in order to cut off the circuit between first receiving coil 2 and the electric heat component 3, and then effectively avoids the dry combustion method, has promoted the safety in utilization greatly.

Further, the system also comprises a voltage dependent resistor 17 for preventing the circuit voltage from being too high to break down the load, and the voltage dependent resistor 17 is connected with the electric heating component 3 in parallel.

Further, the pan body 1 of the present embodiment can be made of non-metal materials (such as glass, crystal, ceramics, etc.), and can also be made of harmless metal materials (such as silver, stainless steel, titanium, etc.); the electric heating component 3 according to the present embodiment is a heating wire heating module or a graphene heating module.

Second embodiment

Referring to fig. 6, the present embodiment relates to a general electromagnetic electric chafing dish which is different from the first embodiment in that: an adaptive switch 6 for matching the electromagnetic supply power; the adaptive switch 6 is electrically connected between the electric heating element 3 and the first power receiving coil 2. Through the application to adaptation switch 6, can set up the coil number of turns that inserts the circuit, and then adjust its power, but make this electromagnetism electric heat chafing dish adaptation most current electromagnetism stove on the market through power adjustment, need not supporting specific base, improve commonality and practicality.

Further, the first power receiving coil 2 is composed of a plurality of coil bodies 201 which are electrically conducted in sequence, and the plurality of coil bodies 201 are arranged inside and outside; the adaptive switch 6 comprises a fixed contact 601 of the electric heating component 3, more than two adaptive contacts 602 of different coil bodies 201 connected with circuits, and a switch moving part 603 electrically connected with the fixed contact 601, wherein four adaptive contacts 602 are shown in the embodiment; under the selective operation of a user, the fixed contact 601 is conducted with different adaptive contacts 602 through the switch moving piece 603 so as to control the number of the coil bodies 201 connected into the circuit, and further adapt to induction cookers with different powers.

Other parts not described above are the same as those of the first embodiment, and are not explained in detail here.

Third embodiment

Referring to fig. 7, the present embodiment relates to a general-purpose electromagnetic electric chafing dish which is different from the first embodiment in that: the power supply system also comprises a power connection device 9 electrically connected with urban power through a power line and a change-over switch 15 used for switching a wireless power supply mode or a wired power supply mode; the first power receiving coil 2 and the power receiving device 9 are electrically connected to the electric heating element 3 through a switch 15, respectively, so as to switch the power supply from the first power receiving coil 2 or the power receiving device 9 through the switch 15. In order to further meet different use requirements, the electromagnetic electric heating hot pot is additionally provided with the power connection device 9, and the required electric energy can be directly obtained from urban electricity or storage batteries and the like through the power connection device 9 so as to supply electric energy to the electric heating component 3; in order to avoid the mutual interference influence between a wireless power supply circuit (a circuit where the first power receiving coil 2 is located) and a wired power supply circuit (a circuit where the power connecting device 9 is located), the wireless power supply or wired power supply work of the electric heating component 3 can be controlled by setting the selector switch 15, the requirements of different users can be further met, the electromagnetic electric heating hot pot can adapt to different use environments, different condition limitations are overcome, the electromagnetic electric heating hot pot is good in universality, strong in adaptability and good in user experience.

Other parts not described above are the same as those of the first embodiment, and are not explained in detail here.

The foregoing is a preferred embodiment of the present invention showing and describing the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and the scope of the invention is to be protected. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. A general type electromagnetism electric heat chafing dish which characterized in that: comprises a pot body (1) for storing a heated body, a coil group for generating induction current by utilizing the principle of electromagnetic induction, an electric heating component (3) for heating the heated body, a cooling fan (5) for cooling and a light-emitting component (10); the electric heating component (3) is arranged on the pot body (1); the electric heating component (3), the heat dissipation fan (5) and the light emitting component (10) are respectively in circuit connection with the coil assembly to obtain induced current generated by the coil assembly; the coil assembly and the heat dissipation fan (5) are respectively positioned on the heat dissipation air duct (a), and the air inlet end and the air outlet end of the heat dissipation air duct (a) are respectively communicated with the outside.

2. The universal electromagnetic electric chafing dish according to claim 1, characterized in that: a bottom cover (12) is arranged at the bottom of the pot body (1), and an accommodating cavity for accommodating the coil assembly and/or the electric heating component (3) and/or the cooling fan (5) and/or the light emitting component (10) is arranged between the pot body (1) and the bottom cover (12); the heat dissipation air duct (a) is arranged on the accommodating cavity.

3. The universal electromagnetic electric chafing dish according to claim 2, characterized in that: and a heat insulation layer (4) and/or a magnetic isolation layer are/is arranged between the coil group and the electric heating component (3).

4. The universal electromagnetic electric chafing dish according to claim 3, characterized in that: a heat insulation disc (8) is arranged on the accommodating cavity, and the heat insulation disc (8) is positioned between the coil group and the electric heating component (3); the heat insulation layer (4) and/or the magnetic insulation layer are/is arranged on the heat insulation disc (8); the heat insulation disc (8) divides the accommodating cavity into the heat dissipation air duct (a).

5. The universal electromagnetic electric chafing dish according to claim 2, characterized in that: an air inlet (1201) communicated with the air inlet end of the heat dissipation air duct (a) and an air outlet (1202) communicated with the air outlet end of the heat dissipation air duct (a) are arranged on the bottom cover (12).

6. The universal electromagnetic electric chafing dish according to claim 1, characterized in that: the coil set comprises a first power receiving coil (2) for generating high-voltage induced current by using the principle of electromagnetic induction and a second power receiving coil (18) for generating low-voltage induced current by using the principle of electromagnetic induction; the electric heating component (3) is electrically connected with the first power receiving coil (2) to obtain high-voltage induction current generated by the first power receiving coil (2); the heat radiation fan (5) and/or the light emitting component (10) are electrically connected with the second power receiving coil (18) through a rectifying circuit so as to obtain low-voltage induced current generated by the second power receiving coil (18).

7. The universal electromagnetic electric chafing dish of claim 6, wherein: the device also comprises a capacitance device (7) which forms a resonance circuit with the first power receiving coil (2); the capacitor device (7) is connected in parallel to the first power receiving coil (2).

8. The universal electromagnetic electric chafing dish of claim 6, wherein: still including setting up in leading magnetic stripe (16) on first power receiving coil (2), lead magnetic stripe (16) and set up more than the piece and distribute on first power receiving coil (2) face pot body (1) side.

9. The universal electromagnetic electric chafing dish according to claim 1, characterized in that: also comprises a temperature controller (11) for monitoring the temperature of the pot body (1); the temperature controller (11) is connected to a circuit between the electric heating component (3) and the coil assembly; the temperature controller (11) is in a closed state in a normal state, and enters an open state when the monitored temperature reaches or exceeds a set temperature, so that a circuit in which the temperature controller is arranged is broken.

10. A universal electromagnetic electric chafing dish according to any one of claims 1 to 9 wherein: the power supply system also comprises a power connection device (9) electrically connected with urban power through a power line and a change-over switch (15) used for switching a wireless power supply mode or a wired power supply mode; the coil assembly and the power connection device (9) are respectively connected with the electric heating component (3) through a circuit of a selector switch (15) so as to be switched by the selector switch (15) to supply power to the coil assembly or the power connection device (9).

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