CN213188506U - Electric heating lunch box - Google Patents
Electric heating lunch box Download PDFInfo
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- CN213188506U CN213188506U CN202021543836.3U CN202021543836U CN213188506U CN 213188506 U CN213188506 U CN 213188506U CN 202021543836 U CN202021543836 U CN 202021543836U CN 213188506 U CN213188506 U CN 213188506U
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- heating
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- direct current
- power supply
- heat
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Abstract
The utility model discloses an electric heat lunch-box, include: the box body comprises an outer shell and an inner shell, wherein the bottom of the inner shell is provided with a heat conducting plate in an attaching mode; a box cover; the interface assembly comprises an alternating current power supply interface and a direct current power supply interface; heating element, including exchanging the heating element and the direct current heating element, exchange the heating element with the direct current heating element all laminates the setting and is in the heat-conducting plate is kept away from one side of interior casing, exchange the heating element with alternating current power source interface electric connection, the direct current heating element with direct current power source interface electric connection. The electric heating lunch box can be heated by alternating current and direct current, and is beneficial to daily use of the electric heating lunch box; the alternating current heating unit and the direct current heating unit are attached to the heat conducting plate, the heat conducting plate is attached to the bottom of the inner shell, the heat conducting plate ensures the speed of heat transfer, the heating contact area is increased, and therefore the heating efficiency of the electric heating lunch box is guaranteed.
Description
Technical Field
The utility model relates to a lunch-box technical field, in particular to electric heat lunch-box.
Background
The electric heating lunch box is a novel lunch box and has the functions of heat preservation and heating. Generally, food-grade PP materials are used as a shell, and a circulating PTC heater is used for heating. Compared with a traditional common lunch box or a heat-preservation lunch box, the electric heating lunch box has the advantages of electric heating, convenience in carrying and the like, the electric heating lunch box is usually used indoors or in a vehicle, the indoor alternating current is 220V, and the vehicle is usually provided with 12V direct current or 24V direct current.
The existing electric heating lunch box does not have the capability of heating by using both alternating current and direct current, so that the electric heating lunch box has limitation and is not beneficial to daily use of the electric heating lunch box; the contact area between the heater in the electric heating lunch box and the electric heating lunch box is small, which causes the low heating efficiency of the electric heating lunch box.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide an electric heat lunch-box, can use the alternating current to heat, can use the direct current to heat again to improve heating efficiency.
The utility model provides a solution of its technical problem is:
an electrically heated lunch box comprising: the box body comprises an outer shell and an inner shell fixed in the outer shell, and a heat-conducting plate is attached to the bottom of the inner shell; a box cover for sealing the box body; the interface assembly comprises an alternating current power supply interface and a direct current power supply interface, and the alternating current power supply interface and the direct current power supply interface are both arranged on the outer shell; the heating component comprises an alternating current heating unit and a direct current heating unit, wherein the alternating current heating unit and the direct current heating unit are both attached to the heat conducting plate, the alternating current heating unit is electrically connected with the alternating current power supply interface, and the direct current heating unit is electrically connected with the direct current power supply interface.
As a further improvement of the above technical solution, the ac power supply interface is used to connect 220V ac power, the dc power supply interface is used to connect 12V dc power or 24V dc power, the ac heating unit adopts a 220V ac PTC heating element, and the dc heating unit adopts a 12V dc PTC heater or a 24V dc PTC heating element.
As a further improvement of the above technical solution, an indicator light for indicating a power on state is provided on the outer housing, and the indicator light is electrically connected to the interface assembly.
As a further improvement of the above technical solution, the heat dissipation device further comprises a controller and a temperature sensor arranged on the outer side of the inner shell, wherein the temperature sensor, the interface component and the heating component are respectively electrically connected with the controller.
As a further improvement of the above technical solution, an electric storage unit is disposed in the box body, and the controller is electrically connected to the electric storage unit.
As a further improvement of the technical scheme, the novel kitchen ware further comprises tableware and a dish containing box, a sealing cover is arranged at the top of the dish containing box, the dish containing box is detachably arranged in the inner shell, and a clamping groove used for fixing the tableware is formed in the box cover.
As a further improvement of the above technical solution, the outer housing is provided with a fixing post for fixing the inner housing.
As a further improvement of the technical scheme, the box cover is provided with a buckle, a handle used for facilitating the taking of hands and an exhaust hole used for reducing pressure, and the outer shell is provided with a buckling groove corresponding to the buckle.
As a further improvement of the above technical solution, the inner shell is made of stainless steel, the outer shell is made of plastic, and the heat conducting plate is made of aluminum.
As a further improvement of the above technical solution, the heating assembly includes two alternating current heating units and two direct current heating units.
The electric heating lunch box at least has the following beneficial effects:
the electric heating lunch box is provided with the inner shell and the outer shell, so that the heat insulation performance of the electric heating lunch box can be ensured; the electric heating lunch box can be heated through the alternating-current power supply interface and the alternating-current heating unit, and can also be heated through the direct-current power supply interface and the direct-current heating unit, so that the daily use of the electric heating lunch box is facilitated; the alternating current heating unit and the direct current heating unit are attached to the heat conducting plate, the heat conducting plate is attached to the bottom of the inner shell, gas at the bottom of the inner shell is heated firstly, and the hot gas moves to a high place to enable the inner part of the inner shell to be heated rapidly, so that the heat conducting plate ensures the speed of heat transfer and increases the heating contact area, and the heating efficiency of the electric heating lunch box is ensured.
Drawings
The utility model is further explained with the attached drawings and the embodiments;
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic diagram of the explosion structure of the present invention;
FIG. 3 is a schematic structural view of the outer casing of the present invention;
FIG. 4 is a system block diagram of the controller of the present invention;
fig. 5 is a bottom view of the present invention;
reference numbers in the figures:
110-outer shell, 111-indicator light, 112-catching groove, 120-inner shell, 121-heat conducting plate, 130-fixing support, 200-box cover, 210-clamping groove, 220-buckle, 230-handle, 240-air vent, 300-interface component, 310-AC power interface, 320-DC power interface, 400-heating component, 410-AC heating unit, 420-DC heating unit, 510-controller, 520-temperature sensor, 530-electricity storage unit, 610-tableware, 620-dish containing box, 621-sealing cover.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
In some embodiments of the present invention, as shown in fig. 1 to 2, an electric heating lunch box includes:
a box body including an outer shell 110 and an inner shell 120 fixed inside the outer shell 110, wherein a heat conducting plate 121 is attached to the bottom of the inner shell 120;
a cap 200 for sealing the case body;
the interface assembly 300 includes an ac power interface 310 and a dc power interface 320, both the ac power interface 310 and the dc power interface 320 are disposed on the outer casing 110;
the heating assembly 400 includes an ac heating unit 410 and a dc heating unit 420, the ac heating unit 410 and the dc heating unit 420 are both attached to the heat conducting plate 121, the ac heating unit 410 is electrically connected to the ac power interface 310, and the dc heating unit 420 is electrically connected to the dc power interface 320.
In the above embodiment, when food in the electric heating lunch box needs to be heated, the ac connection wire or the dc connection wire is connected to the interface assembly 300 of the electric heating lunch box, after the power is turned on, the heating assembly 400 in the electric heating lunch box generates heat, and the heat is transferred through the heat conduction plate 121 and enters the inner shell 120, so as to heat the food in the inner shell 120; the electric heating lunch box is provided with the inner shell 120 and the outer shell 110, so that the heat insulation performance of the electric heating lunch box can be ensured; the electric heating lunch box can be heated through the alternating current power supply interface 310 and the alternating current heating unit 410, and can also be heated through the direct current power supply interface 320 and the direct current heating unit 420, so that the daily use of the electric heating lunch box is facilitated; the alternating current heating unit 410 and the direct current heating unit 420 are attached to the heat conducting plate 121, the heat conducting plate 121 is attached to the bottom of the inner shell 120, gas at the bottom of the inner shell 120 is heated firstly, hot gas moves to a high place, the inner part of the inner shell 120 is heated rapidly, the heat conducting plate 121 guarantees the speed of heat transfer, the heating contact area is increased, and therefore the heating efficiency of the electric heating lunch box is guaranteed.
In some embodiments of the utility model, AC power supply interface 310 is used for connecting the V alternating current, DC power supply interface 320 is used for connecting 12V direct current or 24V direct current, it exchanges the PTC heat-generating body to exchange heat unit 410 and adopts V interchange PTC heat-generating body, direct current heat unit 420 adopts 12V direct current PTC heater or 24V direct current PTC heat-generating body, the PTC heat-generating body has the characteristics of generating heat rapidly, long service life and thermal efficiency are high, through this embodiment, electric heat lunch-box uses the PTC heat-generating body to generate heat, can guarantee the heating efficiency of electric heat lunch-box.
In some embodiments of the utility model, as shown in fig. 3, be provided with the pilot lamp 111 that is used for instructing the power on state on the shell body 110, pilot lamp 111 and interface module 300 electric connection, through this embodiment, the effective use that electric heat lunch-box is right is guaranteed to the switch-on condition of observation power that can be better.
In some embodiments of the utility model, as shown in fig. 4, still include controller 510 and set up in the temperature sensor 520 of the interior casing 120 outside, temperature sensor 520, interface module 300 and heating element 400 respectively with controller 510 electric connection, controller 510 controls heating element 400 according to the temperature that temperature sensor 520 detected, prevents the high temperature of electric heat lunch-box, through this embodiment, can improve the security performance of electric heat lunch-box.
In some embodiments of the utility model, as shown in fig. 4, be provided with electric power storage unit 530 in the box body, controller 510 and electric power storage unit 530 electric connection charge electric power storage unit 530, do not have the condition of power in the open air, can utilize electric power storage unit 530 to heat, through this embodiment, can guarantee the convenience that the electric heat lunch-box used.
In some embodiments of the present invention, as shown in fig. 2 and 5, the electric heating lunch box further comprises a tableware 610 and a dish containing box 620, a sealing cover 621 is disposed on the top of the dish containing box 620, the dish containing box 620 can be detachably disposed in the inner housing 120, the box cover 200 is provided with a clamping groove 210 for fixing the tableware 610, the sealing cover 621 can prevent the liquid in the dish containing box 620 from overflowing, the clamping groove 210 can prevent the tableware 610 from dropping off the food, and the practicability of the electric heating lunch box can be improved through the present embodiment.
In some embodiments of the present invention, as shown in fig. 3, the outer casing 110 is provided with a fixing support 130 for fixing the inner casing 120, and the inner casing 120 is fixed on the outer casing 110 through the fixing support 130, and by this embodiment, the fixing support 130 can ensure that the inner casing 120 is effectively fixed.
In some embodiments of the utility model, as shown in fig. 2 and 5, lid 200 is provided with buckle 220, a handle 230 for making things convenient for the people to take by hand and exhaust hole 240 that is used for the decompression, shell body 110 is provided with the catching groove 112 that corresponds with buckle 220, buckle 220 and catching groove 112 can guarantee that lid 200 carries out effectual lock, handle 230 can make things convenient for the people to take, exhaust hole 240 can prevent that the atmospheric pressure in interior casing 120 is too high, through this embodiment, improve the practicality of electric heat lunch-box.
The utility model discloses a in some embodiments, interior casing 120 is made by the stainless steel, and shell body 110 is made by plastics, and heat-conducting plate 121 is made by aluminium, and the practical life of electric heat lunch-box can be guaranteed to interior casing 120 that the stainless steel was made, and shell body 110 that plastics were made can reduce manufacturing cost, and heat conductivility can be guaranteed to heat-conducting plate 121 that the aluminium was made, through this embodiment, has improved the performance of electric heat lunch-box.
In some embodiments of the present invention, the heating assembly 400 includes two ac heating units 410 and two dc heating units 420, and through this embodiment, the two ac heating units 410 and the two dc heating units 420 can improve the heating efficiency of the electric heating lunch box.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge range of those skilled in the art.
Claims (10)
1. An electric heat lunch-box, its characterized in that includes:
the box body comprises an outer shell and an inner shell fixed in the outer shell, and a heat-conducting plate is attached to the bottom of the inner shell;
a box cover for sealing the box body;
the interface assembly comprises an alternating current power supply interface and a direct current power supply interface, and the alternating current power supply interface and the direct current power supply interface are both arranged on the outer shell;
the heating component comprises an alternating current heating unit and a direct current heating unit, wherein the alternating current heating unit and the direct current heating unit are both attached to the heat conducting plate, the alternating current heating unit is electrically connected with the alternating current power supply interface, and the direct current heating unit is electrically connected with the direct current power supply interface.
2. The electric heating lunch box according to claim 1, wherein the ac power supply interface is used for connecting 220V ac power, the dc power supply interface is used for connecting 12V dc power or 24V dc power, the ac heating unit adopts a 220V ac PTC heater, and the dc heating unit adopts a 12V dc PTC heater or a 24V dc PTC heater.
3. The electrically heated lunch box of claim 1, wherein an indicator light for indicating a power on state is disposed on the outer housing, and the indicator light is electrically connected to the interface assembly.
4. The electrothermal canteen of claim 1, further comprising a controller and a temperature sensor disposed outside the inner housing, wherein the temperature sensor, the interface assembly and the heating assembly are electrically connected to the controller, respectively.
5. The electrothermal canteen according to claim 4, wherein an electricity storage unit is arranged in the canteen body, and the controller is electrically connected with the electricity storage unit.
6. The electric heating lunch box of claim 1, further comprising tableware and a dish containing box, wherein a sealing cover is arranged on the top of the dish containing box, the dish containing box is detachably arranged in the inner shell, and a clamping groove for fixing the tableware is arranged on the box cover.
7. An electrically heated lunchbox as claimed in claim 1 wherein said outer housing is provided with fixing posts for fixing said inner housing.
8. The electric heating lunch box of claim 1, wherein the box cover is provided with a buckle, a handle for facilitating taking by a human hand and an exhaust hole for reducing pressure, and the outer shell is provided with a buckle groove corresponding to the buckle.
9. An electrically heated lunchbox as claimed in claim 1 wherein said inner housing is made of stainless steel, said outer housing is made of plastic and said thermally conductive plate is made of aluminum.
10. An electrothermal canteen according to any one of claims 1 to 9, wherein the heating assembly comprises two of the ac heating elements and two of the dc heating elements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021543836.3U CN213188506U (en) | 2020-07-30 | 2020-07-30 | Electric heating lunch box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021543836.3U CN213188506U (en) | 2020-07-30 | 2020-07-30 | Electric heating lunch box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213188506U true CN213188506U (en) | 2021-05-14 |
Family
ID=75836127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021543836.3U Active CN213188506U (en) | 2020-07-30 | 2020-07-30 | Electric heating lunch box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213188506U (en) |
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2020
- 2020-07-30 CN CN202021543836.3U patent/CN213188506U/en active Active
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