CN210841876U - Rapid heating lunch box - Google Patents
Rapid heating lunch box Download PDFInfo
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- CN210841876U CN210841876U CN201920512127.XU CN201920512127U CN210841876U CN 210841876 U CN210841876 U CN 210841876U CN 201920512127 U CN201920512127 U CN 201920512127U CN 210841876 U CN210841876 U CN 210841876U
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 131
- 238000007599 discharging Methods 0.000 claims abstract description 35
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 10
- 229910052744 lithium Inorganic materials 0.000 claims description 10
- 238000005192 partition Methods 0.000 claims description 9
- 238000005485 electric heating Methods 0.000 claims description 7
- 235000013305 food Nutrition 0.000 claims description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000003575 carbonaceous material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 150000002843 nonmetals Chemical class 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000011366 tin-based material Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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Abstract
The utility model discloses a rapid heating lunch box, which comprises a lunch box body, a base and a heating element; the base is provided with a control circuit, a quick charge-discharge battery, a first switch and a charging interface; the control circuit is connected with the quick charge-discharge battery and the first switch; the utility model can conveniently and rapidly heat dishes in outdoor places such as office work, outing and the like through the rapid charging and discharging of the rapid charging and discharging battery, and has the advantages of short charging time and high heating speed; when the user is indoors, different heating modes can be selected, for example, the external power supply is used for heating slowly or the quick charging and discharging battery is used for heating quickly, or the external power supply is combined with the quick charging and discharging battery for heating quickly, so that the use is very flexible and convenient.
Description
Technical Field
The utility model relates to a lunch-box rapid heating technical field especially relates to a rapid heating lunch-box.
Background
With the development of battery technology, lithium ion batteries are becoming mainstream products due to their characteristics of high performance, high voltage and low pollution. The negative electrode material of the lithium ion battery mainly includes carbon-based materials, nitrides, silicon-based materials, tin-based materials, various novel alloys, and the like, wherein the carbon-based materials are mainly used in practice, and other materials are mostly in the laboratory research stage.
At present, most lunch boxes used by people do not have a heating function, when people are at work, the lunch boxes need to be heated by a microwave oven, the lunch boxes are limited by the microwave oven, the heating speed is low, a large amount of time is wasted when a large number of dishes are heated, and the lunch boxes cannot be heated outdoors without the microwave oven, so that the lunch boxes are very inconvenient.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in that, to the above-mentioned defect of prior art, a rapid heating lunch-box is provided.
The utility model provides a technical scheme that its technical problem adopted is: the fast heating lunch box comprises a lunch box body, a base and a heating element; a control circuit, a quick charge-discharge battery, a first switch and a charge interface are arranged in the base; the control circuit is connected with the quick charge-discharge battery and the first switch; the charging interface is used for being connected with an external power supply, is connected with the quick charge and discharge battery and is used for quickly charging the quick charge and discharge battery; the first switch is connected with the quick charge-discharge battery and the heating element and is used for controlling the quick charge-discharge battery to be turned on/off to quickly discharge the heating element; the control circuit controls the first switch to be switched on/off to rapidly discharge the charge-discharge battery to the heating element, and then controls the switch to be switched on/off to rapidly heat food to be heated in the lunch box body.
Preferably, the charging protection circuit further comprises a rectifying circuit and a charging protection circuit which are connected in sequence; the rectifying circuit is connected with the charging interface and used for converting an external power supply into direct current; and the charging protection circuit is connected with the quick charging and discharging battery and is used for carrying out charging protection on the quick charging and discharging battery.
Preferably, a power supply protection circuit connected with the control circuit is further arranged in the base, the input end of the power supply protection circuit is connected with the charging interface, and the output end of the power supply protection circuit is connected with the first switch; when the charging interface is connected with an external power supply, the control circuit controls the quick charging and discharging battery to quickly discharge the heating element and/or the external power supply discharges the heating element through the power supply protection circuit.
Preferably, still include the wireless module of charging, the wireless module of charging includes the receiving coil, and the receiving coil is connected with quick charge-discharge battery, sets up in the base inboard for carry out wireless charging to quick charge-discharge battery.
Preferably, the fast charge and discharge battery is a lithium titanate battery or a solid state lithium battery.
Preferably, the device also comprises a temperature sensor connected with the control circuit; when the temperature sensor detects that the temperature in the lunch box body reaches the temperature threshold value, the control circuit controls the first switch to be switched off.
Preferably, the upper top surface of the base is a high-temperature-resistant partition plate for placing the lunch box body, the heating element is a coil panel, and the heating element is arranged on the inner surface of the high-temperature-resistant partition plate; the bottom of the lunch box body is provided with a heat conducting plate; the temperature sensor is a thermistor which is arranged in the center of the inner surface of the high-temperature resistant partition plate and used for detecting the temperature in the lunch box body.
Preferably, the temperature sensor and the heating element are both arranged in the lunch box body, and the heating element is a heating sheet, a thermocouple or a cement resistor.
Preferably, the lunch box body is provided with an upper connector at the bottom, the upper top of the base is provided with a lower connector at a position corresponding to the upper connector, and the upper connector is in plug-in fit with the lower connector.
Preferably, the lunch box body and the base are integrated into a whole; the base is waterproof sealing structure, and the base outside still is equipped with display screen and the button module of being connected with control circuit.
Implement the utility model discloses the technical scheme of rapid heating lunch-box has following advantage or beneficial effect: the utility model can conveniently and rapidly heat dishes at outdoor places such as office work, outing and the like through the rapid charging and discharging of the rapid charging and discharging battery, and has the advantages of short charging time and high heating speed; when the user is in the indoor condition, can also select different heating methods, for example use external power supply slow heating or use quick charge-discharge battery rapid heating, or use external power supply to combine quick charge-discharge battery rapid heating, it is very nimble convenient to use.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, and in the drawings:
FIG. 1 is a schematic view of a first module of an embodiment of the rapid heating lunch box of the present invention;
FIG. 2 is a schematic view of a second module of the embodiment of the rapid heating lunch box of the present invention;
FIG. 3 is a schematic view of a first structure of an embodiment of the rapid heating lunch box of the present invention;
FIG. 4 is a second schematic structural view of the fast heating lunch box according to the embodiment of the present invention;
fig. 5 is a schematic view of a third structure of the embodiment of the rapid heating lunch box of the present invention.
Detailed Description
In order to make the objects, solutions and advantages of the present invention more apparent, the various embodiments to be described hereinafter will be referred to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various embodiments in which the invention may be practiced. It is to be understood that other embodiments may be utilized and structural and functional modifications may be made to the embodiments set forth herein without departing from the scope and spirit of the present invention. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples. Fig. 1 to 5 show schematic diagrams provided by embodiments of the rapid heating lunch box of the present invention, and for convenience of description, only the parts related to the embodiments of the present invention are shown.
The first embodiment is as follows:
as shown in fig. 1-5, the embodiment of the rapid heating lunch box of the present invention comprises a lunch box body 1, a base 2 and a heating element 3; a control circuit 4, a rapid charging and discharging battery 5, a first switch 7 and a charging interface 18 are arranged in the base 2; the control circuit 4 is connected with the rapid charging and discharging battery 5 and the first switch 7; the charging interface 18 is used for being connected with an external power supply 100, is connected with the quick charge and discharge battery 5 and is used for quickly charging the quick charge and discharge battery 5; the first switch 7 is connected to both the fast charge/discharge battery 5 and the heating element 3, and is used for controlling the on/off of the fast charge/discharge battery 5 to fast discharge the heating element 3.
In this embodiment, the control circuit 4 controls the first switch 7 to turn on/off the fast charging/discharging battery 5 to fast discharge to the heating element 3, and then controls the on/off to fast heat the food to be heated in the lunch box body 1. Specifically, the lunch box body comprises an upper cover and a box body. Preferably, the control circuit 5 includes a control chip and its peripheral circuits, the control chip may be a STM32F1 series chip, or MP2637 of MPS, ZS6300 of shang mi, IP5209S of english integrated core, and other different series chips of different companies, and is not limited herein.
In this embodiment, the charging interfaces 18 may be USB interfaces and/or mains interfaces, that is, the number of the charging interfaces 18 may be 1 or 2; correspondingly, the external power source 100 may be a mobile power source or a commercial power. If the mains supply (such as 220V) is connected, the charging interface 18 is a charging plug of various standard types, and the external mains supply is connected to directly supply power to the heating element 3 and/or quickly charge the quick charge and discharge battery 5; during the use process, the commercial power is necessary, and for example, the outdoor power-free place where the quick charge-discharge battery 5 runs out cannot be heated for use. If the external power supply is a mobile power supply, the charging interface 18 can be a Mini USB interface, a Micro USB interface, a USB Type-C interface or a Lighting interface and the like correspondingly; the heating element 3 is powered and/or the quick charging battery 5 is quickly charged through the mobile power supply, so that the power can be supplied through the external mobile power supply at the outdoor place where the electricity of the quick charging battery 5 is exhausted, and the use is more convenient.
In this embodiment, if the charging interface 18 is connected to the commercial power, the fast heating lunch box further includes a rectifying circuit 6 and a charging protection circuit 13 which are connected in sequence; the rectifying circuit 6 is connected with the charging interface 18 and is used for converting the external power supply 100 into direct current; the charge protection circuit 13 is connected to the fast charge/discharge battery 5 for charge protection (such as short circuit, overload, over/under voltage, over temperature, etc.) of the fast charge/discharge battery 5. Specifically, in view of the fact that the fast charging and discharging battery 5 adopts alternating current when the commercial power is connected, a rectifying circuit 6 is required to be arranged for converting the alternating current into direct current, and a battery charging adapter can be arranged externally, but the battery charging adapter is inconvenient to carry; in addition, in view of the fact that some unstable factors may exist in a power supply circuit, in order to prevent the rapid charging and discharging battery 5 from breaking down when rapidly charging and discharging to cause damage to devices, a charging protection circuit is arranged so as to monitor the working condition of the rapid heating lunch box, find out faults in time and cut off the power supply of fault equipment, and prevent the accident from being enlarged. The charge protection circuit 13 may be an existing protection circuit or a self-designed circuit, and is not particularly limited herein.
In this embodiment, the base 2 is further provided with a power supply protection circuit 16 connected with the control circuit 4, an input end of the power supply protection circuit 16 is connected with the charging interface 18, and an output end of the power supply protection circuit is connected with the first switch 7; when the charging interface 18 is connected to the external power supply 100, the control circuit 4 controls the fast charging and discharging battery 5 to discharge the heating element 3 fast and/or the external power supply 100 discharges the heating element 3 through the power supply protection circuit 16.
Specifically, when needs go out or have a power failure, can carry the rapid heating lunch-box alone, control circuit 4 controls rapid charging and discharging battery 5 and discharges alone fast and carry out the rapid heating for heating element 3, when having external power source 100, can use control circuit 5 to select external power source 100 directly to discharge for heating element 3 through power supply protection circuit 16 and heat, of course, for the more high-efficient heating of more fast, can launch power supply protection circuit 16 and rapid charging and discharging battery 5 and discharge simultaneously for heating element 3 and carry out the rapid heating, the shortening heat-up time that can be great. For example, 15 minutes are needed for heating a box of lunch through the power supply protection circuit 16, 8 minutes are needed for heating the same box of lunch through the fast charge and discharge battery 5, and 1 minute is needed for heating the same box of lunch through the power supply protection circuit 16 and the fast charge and discharge battery 5 simultaneously, so that the heating efficiency is greatly improved, and the waiting time of a user is saved. The power supply protection circuit 16 is used for temperature protection, input overvoltage protection, input overcurrent protection, and short circuit protection, and may be an existing protection circuit or a self-designed circuit, which is not limited herein.
In the present embodiment, an inverter (not shown) may be further included, and the inverter is connected to the control circuit 4, the fast charge/discharge battery 5, and the first switch 7; specifically, the fast charge/discharge battery 5 is connected to the first switch 7 through an inverter, and the inverter converts the direct current of the fast charge/discharge battery 5 (battery, accumulator jar) into an alternating current (generally 220V, 50Hz sine wave, etc.) to supply power to the heating element 3 for heating. The inverter consists of an inverter bridge, control logic and a filter circuit. More specifically, since the fast charge/discharge battery 5 can instantly release a large power, the inverter is specially designed to perform a corresponding protection in order to protect the heating element 3.
In this embodiment, the fast charge-discharge battery 5 is a lithium titanate battery or a solid-state lithium battery, and may be other batteries with high charge-discharge rate; lithium titanate battery is a kind of lithium ion secondary battery. The negative electrode material is lithium titanate, and the positive electrode material is ternary lithium iron phosphate, lithium manganate, lithium cobaltate, lithium nickelate and the like, so that the lithium ion secondary battery with the voltage of 2.4V or 1.9V is formed. The charge/discharge rate is a current value required for the battery to discharge its rated capacity for a predetermined period of time, and is equal to a multiple of the rated capacity of the battery in data value, and is generally indicated by the letter C.
The State of Charge (SOC), also called the remaining Charge, represents the ratio of the remaining dischargeable Charge to the full Charge of the battery after a period of use or after a long period of rest, expressed as a percentage. The battery is generally represented by one byte, namely a hexadecimal system of two bits (the value range is 0-100), the meaning is that the residual capacity is 0% -100%, when the SOC is 0, the battery is completely discharged, and when the SOC is 100%, the battery is completely full.
In this embodiment, the rapid heating lunch-box still includes wireless charging module 21, and wireless charging module 21 includes the receiving coil, and the receiving coil is connected with rapid charging and discharging battery 5, sets up in base 2 inboardly for carry out wireless charging to rapid charging and discharging battery 5. Specifically, be equipped with the charging coil in the quick heating lunch-box charger, cooperate through charging coil and receiving coil and form the magnetic field, and then can carry out wireless charging to quick charge-discharge battery 5.
In this embodiment, the rapid heating lunch box further comprises a temperature sensor 17 connected with the control circuit 4; when the temperature sensor 17 detects that the temperature in the lunch box body 1 reaches the temperature threshold, the control circuit 4 controls the first switch to be switched off. Wherein the temperature threshold may be set differently according to the needs of the customer or heating different objects. Preferably, the temperature threshold of water is 90-100 deg.C, such as 40-50 deg.C for food, etc., and other temperature values are also possible, which are not limited in particular.
In this embodiment, the base 2 is a waterproof sealing structure so as to protect the circuit elements through the waterproof structure, and a display 20 and a key module 21 connected with the control circuit 4 are further disposed outside the base 2. Specifically, the display screen 20 is configured to display temperature information, and the key module 21 includes a temperature adjustment key configured to adjust a first temperature threshold. More specifically, the key module 21 may further include a switch key, such as a switch key for operating a switch of the entire heating apparatus.
In this embodiment, the upper top surface of the base 2 is a high temperature resistant partition plate for placing the lunch box body 1, the heating element 3 is a coil panel, and the heating element 3 is arranged on the inner surface of the high temperature resistant partition plate; the bottom of the lunch box body 1 is provided with a heat conducting plate; the heat conducting disc is made of magnetic conducting metal; the temperature sensor 17 is a thermistor arranged at the center of the inner surface of the high-temperature resistant partition plate and used for detecting the temperature in the lunch box body 1.
Specifically, the heating element 3 is electromagnetic heating, the coil panel is arranged on the base 2, the heat conducting panel supported by magnetic conducting metal such as stainless steel is arranged at the bottom of the lunch box body 1, and after the coil panel is electrified, a magnetic field is generated, and the heat conducting panel generates heat to heat water. Electromagnetic heating has a long life compared to resistive heating: the electromagnetic heating coil basically does not generate heat, so the service life is long, the maintenance and the replacement cost are not needed; the heating part adopts an annular cable structure, the cable can not generate heat and can bear high temperature of more than 500 ℃, and the service life is as long as 10 years. No maintenance is needed, and no maintenance cost is basically needed in the later period.
Example two:
the same contents as those in the first embodiment are not described herein again, but the temperature sensor 17 and the heating element 3 are both disposed in the lunch box body 1, and the heating element 3 is a heating plate, a thermocouple, a cement resistor, a tubular electric heating element or a sheet electric heating element, or other electric heating elements.
Specifically, the heating element 3 adopts resistance heating, the base 2 is electrically connected with the lunch box body 1 to supply power to the temperature sensor 16 and the heating element 3 in the lunch box body 1, and after the lunch box is electrified, the heating sheet, the thermocouple, the cement resistance tubular electric heating element or the sheet electric heating element generate heat to heat food in the lunch box body 1. Resistance heating is the simplest (and oldest) power-based heating method that can heat metals, molten metals or non-metals with nearly 100% efficiency and at working temperatures up to 2000 ℃. Therefore, the method can be applied to high-temperature heating and low-temperature heating. Because of its controllability and rapid warming properties, resistance heating is used in all aspects from heating molten metal to heating food.
In the above embodiment, the lunch box body 1 and the base 2 can be integrated or separated regardless of whether the heating element 3 is resistance heating or electromagnetic heating.
As shown in fig. 3, in the integrated rapid heating lunch box, the lunch box body 1 and the base 2 are integrally formed regardless of whether the heating element 3 is resistance-type heating or electromagnetic-type heating. Further, base 2 is waterproof sealing structure, and base 2 still includes display screen 19 and button module 20, and button module 20 and display screen 19 all locate the base 2 outside. Specifically, the display screen 19 is used for displaying temperature information, and the key module 20 includes a temperature adjustment key for adjusting the first temperature threshold. More specifically, the key module 20 may further include a switch key, such as a switch key for operating a switch of the entire heating lunch box, which is not further limited herein.
As shown in fig. 4, in the rapid heating lunch box with a separate electromagnetic heating element, the lunch box body 1 is placed on the heating element 3, and after the coil panel is energized, a magnetic field is generated, and the heat conducting panel generates heat to heat food.
As shown in fig. 5, in the lunch box with a quick heating function and a separate resistance type heating element, an upper connector 14 is arranged at the bottom of the lunch box body 1, a lower connector 15 is arranged at a position on the top of the base 2 corresponding to the upper connector 14, and the upper connector 14 is in insertion fit with the lower connector 15. The upper connector 14 and the upper connector 15 are matched in a plugging mode, the lunch box body 1 can be installed and the base 2 supplies power to the temperature sensor 17 and the heating element 3 in the lunch box body 1, the upper connector 14 and the lower connector 15 are separated, the lunch box body 1 can be separated from the base and the power supply is disconnected, the lunch box is simple and convenient, and looseness caused in the process of installing the lunch box body 1 on the base 2 can be avoided.
The utility model can conveniently and rapidly heat dishes at outdoor places such as office work, outing and the like through the rapid charging and discharging of the rapid charging and discharging battery, and has the advantages of short charging time and high heating speed; when the user is in the indoor condition, can also select different heating methods, for example use external power supply slow heating or use quick charge-discharge battery rapid heating, or use external power supply to combine quick charge-discharge battery rapid heating, it is nimble convenient to use.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the protection scope of the present invention.
Claims (10)
1. A rapid heating lunch box is characterized by comprising a lunch box body (1), a base (2) and a heating element (3); a control circuit (4), a rapid charging and discharging battery (5), a first switch (7) and a charging interface (18) are arranged in the base (2); the control circuit (4) is connected with the rapid charging and discharging battery (5) and the first switch (7);
the charging interface (18) is used for being connected with an external power supply (100), is connected with the rapid charging and discharging battery (5) and is used for rapidly charging the rapid charging and discharging battery (5); the first switch (7) is connected with the rapid charging and discharging battery (5) and the heating element (3) and is used for controlling the rapid charging and discharging battery (5) to be turned on/off to rapidly discharge the heating element (3);
the control circuit (4) controls the first switch (7) to be switched on/off, the rapid charging and discharging battery (5) discharges rapidly to the heating element (3), and then the rapid heating of food to be heated in the lunch box body (1) is controlled to be switched on/off.
2. The rapid heating lunch box according to claim 1, further comprising a rectification circuit (6) and a charging protection circuit (13) connected in sequence;
the rectifying circuit (6) is connected with the charging interface (18) and is used for converting the external power supply (100) into direct current; and the charging protection circuit (13) is connected with the rapid charging and discharging battery (5) and is used for carrying out charging protection on the rapid charging and discharging battery (5).
3. The rapid heating lunch box according to claim 1, wherein a power supply protection circuit (16) connected with the control circuit (4) is further arranged in the base (2), the input end of the power supply protection circuit (16) is connected with the charging interface (18), and the output end of the power supply protection circuit is connected with the first switch (7);
when the charging interface (18) is connected to the external power supply (100), the control circuit (4) controls the quick-charging and discharging battery (5) to quickly discharge the heating element (3) and/or the external power supply (100) discharges the heating element (3) through the power supply protection circuit (16).
4. The rapid heating lunch box according to claim 1, further comprising a wireless charging module (21), wherein the wireless charging module (21) comprises a power receiving coil connected with the rapid charging and discharging battery (5) and arranged inside the base (2) for wirelessly charging the rapid charging and discharging battery (5).
5. A rapid heating lunch box according to claim 1, characterized in that the rapid charging and discharging battery (5) is a lithium titanate battery or a solid-state lithium battery.
6. A rapid heating lunch box according to any one of claims 1-5, characterised by further comprising a temperature sensor (17) connected to the control circuit (4);
when the temperature sensor (17) detects that the temperature in the lunch box body (1) reaches a temperature threshold value, the control circuit (4) controls the first switch (7) to be switched off.
7. The rapid heating lunch box according to claim 6, wherein the upper top surface of the base (2) is a high temperature resistant partition for placing the lunch box body (1), the heating element (3) is a coil plate, and the heating element (3) is arranged on the inner surface of the high temperature resistant partition; the bottom of the lunch box body (1) is provided with a heat conducting disc;
the temperature sensor (17) is a thermistor, and the thermistor is arranged in the center of the inner surface of the high-temperature resistant partition plate and used for detecting the temperature in the lunch box body (1).
8. The rapid heating lunch box according to claim 6, wherein the temperature sensor (17) and the heating element (3) are both disposed in the lunch box body (1), and the heating element (3) is a heating sheet, a thermocouple, a tubular electric heating element, or a sheet-shaped electric heating element.
9. The rapid heating lunch box according to claim 8, wherein an upper connector (14) is arranged at the bottom of the lunch box body (1), a lower connector (15) is arranged at the position of the upper top of the base (2) corresponding to the upper connector (14), and the upper connector (14) is in plug-in fit with the lower connector (15).
10. A rapid heating lunch box according to claim 7 or 8, characterized in that the lunch box body (1) is integrated with the base (2);
the base (2) is of a waterproof sealing structure, and a display screen (19) and a key module (20) which are connected with the control circuit (4) are further arranged on the outer side of the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920512127.XU CN210841876U (en) | 2019-04-16 | 2019-04-16 | Rapid heating lunch box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920512127.XU CN210841876U (en) | 2019-04-16 | 2019-04-16 | Rapid heating lunch box |
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| Publication Number | Publication Date |
|---|---|
| CN210841876U true CN210841876U (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920512127.XU Active CN210841876U (en) | 2019-04-16 | 2019-04-16 | Rapid heating lunch box |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114947330A (en) * | 2022-04-19 | 2022-08-30 | 浙江先导热电科技股份有限公司 | Heating and refrigerating integrated portable lunch box and heating and refrigerating method |
-
2019
- 2019-04-16 CN CN201920512127.XU patent/CN210841876U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114947330A (en) * | 2022-04-19 | 2022-08-30 | 浙江先导热电科技股份有限公司 | Heating and refrigerating integrated portable lunch box and heating and refrigerating method |
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Effective date of registration: 20211209 Address after: 518000 908 Century Plaza, inner ring road, Nanshan District, Shenzhen, Guangdong Patentee after: Feng Yi Patentee after: Quan Tai Address before: 518000 1102, Dachong building, No. 2009, Shahe West Road, Dachong community, Yuehai street, Nanshan District, Shenzhen, Guangdong Province Patentee before: Shenzhen Volt Power Technology Co.,Ltd. |