CN214906038U - Self-heating lunch box - Google Patents
Self-heating lunch box Download PDFInfo
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- CN214906038U CN214906038U CN202120453594.7U CN202120453594U CN214906038U CN 214906038 U CN214906038 U CN 214906038U CN 202120453594 U CN202120453594 U CN 202120453594U CN 214906038 U CN214906038 U CN 214906038U
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Abstract
The utility model discloses a self-heating lunch box, which solves the technical problems of large occupied space of heating materials, poor constant temperature effect and low energy utilization rate in the prior self-heating lunch box. The utility model discloses an interior casing that is connected with the end cover, interior casing connection have heating resistor, and heating resistor is connected with accuse temperature module, and accuse temperature module is connected with rechargeable battery, interior casing outside is provided with the shell body, is provided with the thermoelectric generation piece that links to each other with interior casing between interior casing and the shell body, and the thermoelectric generation piece passes through charging circuit and links to each other with rechargeable battery. When there is hot meal in the interior casing, the temperature passes to one side that the thermoelectric generation piece hugs closely the inner wall for thermoelectric generation piece both sides produce the difference in temperature through interior casing inner wall for the electric energy storage that utilizes the seebeck effect will produce stores in the battery, and the temperature control module monitors the inner wall temperature constantly, and when the temperature was less than the settlement temperature, chargeable battery began working, and heating resistor is the meal heating in the box.
Description
Technical Field
The utility model relates to the technical field of lunch boxes, in particular to a self-heating lunch box.
Background
The heat preservation lunch-box on the existing market keeps warm the principle and plays the purpose of isolated heat loss through special material mostly, and the heat preservation effect is closely related with the good or bad of heat preservation material, and better heat preservation material cost is also very high. The hotter meal is not suitable for eating at any time, the meal is eaten after reaching the suitable temperature, a large amount of heat is wasted during the period, and the purpose of heating and heat preservation at any time cannot be achieved through the self requirement when the meal is too cold. The principle of the existing self-heating lunch box is that a lunch box carries a heating agent to carry out chemical reaction with water, and then releases heat to heat the lunch box. The self-contained heating agent not only occupies more space, but also can not be recycled, so that the energy utilization rate is low, and resources are wasted to pollute the environment.
For solving the above-mentioned problem of current self-heating lunch-box, the utility model patent that current grant bulletin date is 2016.02.24, grant bulletin number is CN 205040846U discloses a portable heatable lunch-box, including the box body, still include thermoelectric refrigeration subassembly, temperature sensor and control circuit, the box body bottom is equipped with the cavity, and thermoelectric refrigeration subassembly sets up in the cavity, and temperature sensor sets up in the box body inner chamber, thermoelectric refrigeration subassembly, temperature sensor are connected with control circuit. The inner cavity of the box body is divided into four parts, and each part is provided with a temperature sensor; still be equipped with temperature protection circuit, temperature protection circuit include cooling fan and cooling temperature sensor, cooling temperature sensor sets up on the surface of thermoelectric refrigeration subassembly, the air outlet alignment thermoelectric refrigeration subassembly of cooling fan, cooling temperature sensor and control circuit are connected.
The lunch-box that adopts above-mentioned patent scheme can monitor and regulate and control the inside temperature of lunch-box automatically, but the structure is too complicated, not only includes thermoelectric cooling subassembly, a plurality of temperature sensor and cooling temperature sensor, but also cooling fan. The multiple structures still occupy a large space, and the temperature sensor, the cooling fan and the thermoelectric cooling assembly are communicated with the controller, so that a closed-loop control circuit is formed, the heating realization process and the heat preservation realization process are complex, and the energy can not be recycled.
Disclosure of Invention
To the not enough in the above-mentioned background art, the utility model provides a self-heating lunch box has solved the technical problem that heating material occupation space is big, the constant temperature effect is poor and energy utilization is low among the current self-heating lunch box.
The technical scheme of the utility model is realized like this: the utility model provides a self-heating lunch box, is including the interior casing that is connected with the end cover, and interior casing connection has heating resistor, and heating resistor is connected with accuse temperature module, and accuse temperature module is connected with chargeable call battery, interior casing outside is provided with the shell body, is provided with the thermoelectric generation piece that links to each other with interior casing between interior casing and the shell body, and the thermoelectric generation piece passes through charging circuit and links to each other with chargeable call battery. The during operation, when there is hot meal in the interior casing, the temperature passes to the one side that the thermoelectric generation piece hugs closely the inner wall through interior casing inner wall for thermoelectric generation piece both sides produce the difference in temperature, utilize the seebeck effect to store the electric energy that produces in the battery, the temperature control module monitors the inner wall temperature constantly, when the temperature is less than the settlement temperature, chargeable battery begins working, heating resistor heats for the meal in the box, when heating too high, chargeable battery stop work, make it keep in invariable suitable temperature range.
Furthermore, the thermoelectric generation piece is the slice and pastes and establish on the outer wall of interior casing, can carry out energy recuperation when the difference in temperature takes place promptly and utilize, and is more energy-concerving and environment-protective.
Furthermore, be provided with heat conduction silica gel layer on the thermoelectric generation piece, make the more sensitive heat conduction fast of thermoelectric generation piece.
Furthermore, the thermoelectric generation pieces are provided with a plurality of thermoelectric generation pieces which are connected in parallel, and the thermoelectric generation pieces are uniformly distributed on the outer wall of the inner shell, so that the space between the inner shell and the outer shell can be fully utilized, and the energy can be recycled to the maximum extent.
Further, be the vacuum layer between interior casing and the shell body, the thermoelectric generation piece sets up in the vacuum layer, further strengthened thermal insulation performance.
Further, the inner shell or/and the outer shell is/are a metal shell.
Further, the bottom of casing including the heating resistor setting, thermoelectric generation piece sets up around the casing including.
Further, the bottom of interior casing is provided with the water injection chamber, the inner chamber of casing heaies up through heating water injection chamber messenger to the heating resistor.
Further, the rechargeable storage battery is a lithium battery and is connected with a USB charging port.
Furthermore, the temperature control module is connected with a display screen for displaying temperature.
The utility model discloses based on thermoelectric generation, utilize semiconductor material, according to the difference in temperature that exists between the interior casing of splendid attire hot meal and the shell body, become the heat energy conversion that the cold in-process of meal scatters and disappears and store in rechargeable power supply for the heat dissipation of hot meal is in order to reach the temperature that suits to eat. The temperature control module with the temperature sensor is arranged, and when the temperature in the box is lower than a set value, the electric energy stored in the rechargeable power supply can be used for heating the box, so that the purpose of long-time heat preservation is achieved. Still can utilize under the not enough condition of electric capacity energy storage precious etc. of charging to heat for its energy storage through external interface, have following beneficial effect:
(1) the environment-friendly thermoelectric power generation sheet is arranged in the solar water heater, so that heat energy is fully utilized, energy is saved, and emission is reduced.
(2) The convenience, the electric energy that stores in the rechargeable power supply can heat the meal according to needs at any time, still can set for the temperature, when the temperature is less than the setting value automatic heating meal reaches long-time heat preservation effect. The external USB interface can charge the treasured and continue a journey when the energy storage is not enough.
(3) The economy, because heat preservation is heated on the basis of thermoelectric generation, the requirement on heat preservation materials is not very high, and the cost is greatly saved.
(4) The high efficiency can accelerate the heat dissipation to reach the edible temperature when the temperature of the meal is too high, the part of the sufficient heat is stored, and the heat is reused to heat the meal when the temperature of the meal is too cold, so that the high efficiency and the energy saving are realized.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive work.
Fig. 1 is a front view of the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a top view of FIG. 1;
wherein: 1. inner casing, 2, shell body, 3, vacuum layer, 4, end cover, 5, base, 6, rechargeable battery, 7, accuse temperature module, 8, heating resistor, 9, display screen, 10, thermoelectric generation piece, 11, USB charge mouthful, 12, handle.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
A self-heating lunch box, as shown in figures 1-3, comprises an inner shell 1 connected with an end cover 4, the inner shell 1 is connected with a heating resistor 8, the heating resistor is connected with a temperature control module 7, and the temperature control module 7 is connected with a rechargeable battery 6. The temperature control module 7 can monitor the temperature condition of the inner shell 1 according to the temperature sensor, and then the heating resistor 8 is controlled to heat the inner shell 1 in real time. The rechargeable storage battery 6 is a lithium battery and is connected with a USB charging port 11, so that the rechargeable storage battery is convenient to charge; the temperature control module 7 is connected with a display screen 9 for displaying temperature, and the temperature of the inner shell 1 can be observed in real time.
The outer shell 2 is arranged outside the inner shell 1, and the vacuum layer 3 is arranged between the inner shell 1 and the outer shell 2, so that the heat insulation performance can be enhanced. The inner shell 1 or/and the outer shell 2 is/are metal shells, the end covers 4 are connected to the end portions of the inner shell 1 and the outer shell 2 in a threaded mode, and the outer shell 2 is connected with the handle 12. The bottom of interior casing 1 and shell body 2 is provided with base 5, rechargeable battery 6, temperature control module 7 all set up in base 5.
The vacuum layer 3 is internally provided with a thermoelectric generation piece 10 connected with the inner shell 1, and the thermoelectric generation piece 10 is connected with the rechargeable battery 6 through a charging circuit. The during operation, when there is hot meal in the interior casing, the temperature passes to the one side that the thermoelectric generation piece hugs closely the inner wall through interior casing inner wall for thermoelectric generation piece both sides produce the difference in temperature, utilize the seebeck effect to store the electric energy that produces in the battery, the temperature control module monitors the inner wall temperature constantly, when the temperature is less than the settlement temperature, chargeable battery begins working, heating resistor heats for the meal in the box, when heating too high, chargeable battery stop work, make it keep in invariable suitable temperature range.
Specifically, the thermoelectric generation piece 10 is attached to the outer wall of the inner housing 1 in a sheet shape, so that energy can be recycled when temperature difference occurs, and the thermoelectric generation piece is more energy-saving and environment-friendly. Be provided with heat conduction silica gel layer on the thermoelectric generation piece 10, make thermoelectric generation piece 10 heat conduction more sensitively fast.
Further, the thermoelectric generation pieces 10 are provided with a plurality of thermoelectric generation pieces and are connected in parallel, and the thermoelectric generation pieces 10 are uniformly distributed on the outer wall of the inner shell 1, so that the space between the inner shell and the outer shell can be fully utilized, and the energy can be recycled to the maximum extent.
The heating resistor 8 is arranged at the bottom of the inner shell 1, and the thermoelectric generation pieces 10 are arranged around the inner shell 1.
Further, the bottom of interior casing 1 is provided with the water injection chamber, heating resistor 8 makes the inner chamber of interior casing 1 heat up through heating the water injection chamber.
The present invention is not exhaustive and is well known to those skilled in the art.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a self-heating lunch box, is connected with heating resistor (8) including interior casing (1) that is connected with end cover (4), interior casing (1), and heating resistor is connected with accuse temperature module (7), and accuse temperature module (7) are connected with rechargeable battery (6), its characterized in that: the external portion of interior casing (1) is provided with shell body (2), is provided with thermoelectric generation piece (10) that link to each other with interior casing (1) between interior casing (1) and shell body (2), and thermoelectric generation piece (10) pass through charging circuit and link to each other with rechargeable battery (6).
2. The self-heating lunch box according to claim 1, wherein: the thermoelectric generation piece (10) is pasted on the outer wall of the inner shell (1) in a sheet shape.
3. The self-heating lunch box according to claim 2, wherein: and a heat conduction silica gel layer is arranged on the thermoelectric generation sheet (10).
4. The self-heating lunch box according to any one of claims 1 to 3, wherein: the thermoelectric generation pieces (10) are arranged in parallel, and the thermoelectric generation pieces (10) are uniformly distributed on the outer wall of the inner shell (1).
5. The self-heating lunch box according to claim 4, wherein: be vacuum layer (3) between interior casing (1) and shell body (2), thermoelectric generation piece (10) set up in vacuum layer (3).
6. The self-heating lunch box according to any one of claims 1-3 and 5, wherein: the inner shell (1) or/and the outer shell (2) is/are metal shells.
7. The self-heating lunch box according to claim 6, characterized in that: the heating resistor (8) is arranged at the bottom of the inner shell (1), and the thermoelectric generation pieces (10) are arranged around the inner shell (1).
8. The self-heating lunch box as recited in claim 7, wherein: the bottom of interior casing (1) is provided with the water injection chamber, heating resistor (8) make the inner chamber of interior casing (1) heat up through heating water injection chamber.
9. The self-heating lunch box according to any one of claims 1 to 3, 5, and 7 to 8, wherein: the rechargeable storage battery (6) is a lithium battery and is connected with a USB charging port (11).
10. The self-heating lunch box according to claim 9, characterized in that: the temperature control module (7) is connected with a display screen (9) for displaying temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120453594.7U CN214906038U (en) | 2021-03-03 | 2021-03-03 | Self-heating lunch box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120453594.7U CN214906038U (en) | 2021-03-03 | 2021-03-03 | Self-heating lunch box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214906038U true CN214906038U (en) | 2021-11-30 |
Family
ID=79117379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120453594.7U Active CN214906038U (en) | 2021-03-03 | 2021-03-03 | Self-heating lunch box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214906038U (en) |
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2021
- 2021-03-03 CN CN202120453594.7U patent/CN214906038U/en active Active
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