CN207979189U - A kind of temperature control lunch box - Google Patents
A kind of temperature control lunch box Download PDFInfo
- Publication number
- CN207979189U CN207979189U CN201820286070.1U CN201820286070U CN207979189U CN 207979189 U CN207979189 U CN 207979189U CN 201820286070 U CN201820286070 U CN 201820286070U CN 207979189 U CN207979189 U CN 207979189U
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- China
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- wall
- lunch box
- liner
- temperature
- box body
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Abstract
The utility model discloses a kind of temperature control lunch boxes, belong to table ware technical field, including adiabatic box body, box body includes liner, the bottom outer wall of liner is equipped with PTC heating plates, and the outer wall of liner side is provided with internal temperature sensor, and the outer wall of liner is additionally provided with semiconductor chilling plate, it is additionally provided with control chamber in box body, microcontroller, switch controller and power module are housed in control chamber；The utility model utilizes PTC heating plate constant temperature warming characteristics and semiconductor chilling plate, and the function of lunch box automatic heating and cooling refrigeration is realized under microcontroller control, so that food in lunch box is stored in suitable temperature, improves intelligence and the service efficiency of lunch box.
Description
Technical field
The utility model belongs to table ware technical field, is related to a kind of temperature control lunch box.
Background technology
Currently, in the market incubation canteen is varied, and a part is can to add the intelligence of fresh food heating to prepared food
Lunch box, this kind of lunch box are more closely similar to small-sized electric cooker；Another part is common incubation canteen, and food cannot be cooked, single
Pure reduces food heat loss by insulation mean.Lunch box can not be according to food temperature inside lunch box and outside in the prior art
Environment temperature, which carries out automatic heating, makes food maintain suitable temperature problem.When food is in a temperature range, hold very much
Bacterium is easily grown, bacterium is heated under conditions of 50 DEG C and temperatures above can be inactivated for a period of time, and at 5 DEG C or so
It is difficult mass propagation under environment temperature.In view of the above problems, the utility model comprehensively considers eaten in ambient temperature and box
Object temperature controls lunch box temperature, can be maintained at prepared food under rationally suitable temperature condition, keep the new of food
It is fresh, it is more healthy.
Utility model content
The purpose of this utility model is to provide a kind of temperature control lunch box, solve in the prior art can not be according to lunch box inside
Food temperature and ambient temperature, which carry out automatic heating, makes food maintain suitable temperature problem.
The utility model is the technical scheme adopted is that a kind of temperature control lunch box, including adiabatic box body, and box is stamped on box body
Lid, the box body include liner, and the bottom outer wall of liner is provided with PTC heating plates, and inner bladder outer wall is additionally provided with internal temperature biography
Sensor, is additionally provided with control chamber in the box body, equipped with microcontroller, switch controller and the power supply mould being connected with each other in control chamber
Block, control cavity outer wall are equipped with external temperature sensor, heater switch and power interface.
The principle of the technical program is, using PTC heating plate constant temperature warming characteristics, to pass through internal temperature sensor and outside
Temperature sensor detects temperature, and temperature signal is transmitted to the function that chip microcontroller lunch box heats automatically, and food in lunch box is made to protect
There are suitable temperature, improve intelligence and the service efficiency of lunch box.
The utility model is also characterized by：
Further, the outer wall of the liner is additionally provided with semiconductor chilling plate, and the outer wall of the control chamber is additionally provided with system
Cold switch, the semiconductor chilling plate and refrigeration switch are connect with switch controller conducting wire respectively.
Further, the PTC heating plates use insulated type PTC heater elements.
Further, the control cavity outer wall is equipped with sealing waterproof insulation material.
Further, further include tableware barrel in the box body.
The utility model has the beneficial effects that：Using PTC heating plate constant temperature warming characteristics, temperature is detected by temperature sensor
Degree realizes the function that lunch box heats automatically under microcontroller control, so that food in lunch box is stored in suitable temperature, ensures food
It is interior to grow a large amount of bacteriums；By adding semiconductor chilling plate, any refrigerant is not needed, under microcontroller control, is realized
The function of lunch box cooling refrigeration keeps food cooling in lunch box fresh-keeping, inhibits bacterial growth at low temperature；Improve the intelligence of lunch box
Change and service efficiency, do not shake and noise, installation are easy.
Description of the drawings
Fig. 1 is a kind of external structure schematic diagram of temperature control lunch box of the utility model；
Fig. 2 is a kind of internal structure schematic diagram of temperature control lunch box of the utility model.
In figure, 1. box bodys, 2. liners, 3. box covers, 4. control chambers, 5. external temperature sensors, 6. heater switch, 7. refrigeration
Switch, 8. power interfaces, 9. internal temperature sensors, 10.PTC heating plates, 11. semiconductor chilling plates, 12. microcontrollers, 13. is steady
Die block, 14. power modules, 15. tableware barrels.
Specific implementation mode
The utility model is described in detail with reference to the accompanying drawings and detailed description, but the utility model and unlimited
In these modes.
A kind of temperature control lunch box is eaten as shown in Figure 1, including being provided with tableware barrel 15 and liner 2 in adiabatic box body 1, box body 1
Have 15 bottom of cylinder to be connected equipped with control chamber 4, tableware barrel 15 and control chamber 4 are in semi-circular cylindrical structure, and box cover 3 is stamped at 1 top of box body.
As shown in Fig. 2, between liner 2 and the lagging casing of box body 1, the bottom outer wall of liner 2 is provided with PTC heating plates
10, PTC heating plates 10 use insulated type PTC heater elements, and liner 2 close to the outer wall of 15 side of the tableware barrel in being provided with
The forward and backward and outer right wall of portion's temperature sensor 9, liner 2 is additionally provided with semiconductor chilling plate 11 respectively.
Microcontroller 12, switch controller, 7805 Voltage stabilizing modules 13 and power module 14 be housed, outside control chamber 4 in control chamber 4
Wall is using sealing waterproof insulation material.4 outer wall of control chamber is equipped with external temperature sensor 5, heater switch 6, refrigeration switch 7 and electricity
Source interface 8, switch controller are connect with heater switch 6 and refrigeration 7 conducting wire of switch respectively, and switch controller also adds with PTC respectively
Backing 10 is connected with 11 conducting wire of semiconductor chilling plate.
External temperature sensor 5, internal temperature sensor 9, switch controller are connect with 12 conducting wire of microcontroller respectively, power supply
Module 14 is AC/DC power modules, and power module 14 is electrically connected with microcontroller 12 and switch controller respectively, power module 14
It is electrically connected with power interface 8.External power supply conveys 220V voltages by power interface 8 to lunch box, by AC/DC power modules
14 are converted to 12V voltages, provide work electricity by switch controller for PTC heating plates 10 and semiconductor chilling plate 11 respectively all the way
Source, another way are that microcontroller 12 provides 5V working powers by 7805 Voltage stabilizing modules.
The PTC heating elements that insulate have constant temperature warming characteristic, and self-heating, which heats up, after the power-up of PTC heating elements makes resistance value enter jump
Become area, PTC heating elements surface temperature will keep constant value, the temperature only Curie temperature with PTC heating elements and outer power-up
It is pressed with pass, and it is substantially unrelated with environment temperature.Semiconductor chilling plate does not need any refrigerant as extraordinary low-temperature receiver, can be continuous
Work does not have when work vibrations, noise, long lifespan, installation easy.
PTC heating plates 10 and semiconductor chilling plate 11 are controlled by microcontroller 12, and the course of work is：When needs are to food
When object carries out heating and thermal insulation, after opening heater switch 6, external temperature sensor 5 monitors that ambient temperature is less than 5 DEG C or interior
When portion's temperature sensor 9 monitors that internal food temperature is less than 38 DEG C, microcontroller 12 controls PTC heating plates by switch controller
10 start to work, and lunch box can be heated to 55 DEG C and stop heating automatically, and it is a large amount of thin that this temperature can ensure that food therein will not be grown
Bacterium；When needing to carry out refrigeration cool-down to food, after opening refrigeration switch 7, semiconductor chilling plate 11 is started to work, will be in lunch box
For portion's food temperature control at 5 DEG C, this temperature can be that food cooling is fresh-keeping in lunch box, inhibit bacterial growth.
The utility model utilizes PTC heating plate constant temperature warming characteristics, and temperature is detected by inside and outside temperature sensor,
The function that lunch box heats automatically is realized under microcontroller control, so that food in lunch box is stored in suitable temperature, is ensured in food
A large amount of bacteriums will not be grown；By adding semiconductor chilling plate, any refrigerant is not needed, under microcontroller control, realizes meal
The function of box cooling refrigeration keeps food cooling in lunch box fresh-keeping, inhibits bacterial growth at low temperature, extends food in lunch box
The stored refrigerated time.
Claims (5)
1. a kind of temperature control lunch box, including adiabatic box body (1), box cover (3) is stamped on box body (1), it is characterised in that：The box body
(1) include liner (2), the bottom outer wall of the liner (2) is provided with PTC heating plates (10), and liner (2) outer wall is additionally provided with interior
Portion's temperature sensor (9), the box body (1) is interior to be additionally provided with control chamber (4), and the microcontroller being connected with each other is housed in control chamber (4)
(12), switch controller and power module (14), control chamber (4) outer wall are equipped with external temperature sensor (5), heater switch (6)
With power interface (8).
2. a kind of temperature control lunch box according to claim 1, it is characterised in that：The outer wall of the liner (2) is additionally provided with half
The outer wall of conductor cooling piece (11), the control chamber (4) is additionally provided with refrigeration switch (7), the semiconductor chilling plate (11) and system
Cold switch (7) is connect with switch controller conducting wire respectively.
3. a kind of temperature control lunch box according to claim 1, it is characterised in that：The PTC heating plates (10) use insulated type
PTC heater elements.
4. a kind of temperature control lunch box according to claim 1, it is characterised in that：It is anti-that control chamber (4) outer wall is equipped with sealing
Water insulating materials.
5. a kind of temperature control lunch box according to claim 1, it is characterised in that：Further include tableware barrel in the box body (1)
(15)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820286070.1U CN207979189U (en) | 2018-02-28 | 2018-02-28 | A kind of temperature control lunch box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820286070.1U CN207979189U (en) | 2018-02-28 | 2018-02-28 | A kind of temperature control lunch box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207979189U true CN207979189U (en) | 2018-10-19 |
Family
ID=63826067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820286070.1U Expired - Fee Related CN207979189U (en) | 2018-02-28 | 2018-02-28 | A kind of temperature control lunch box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207979189U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109360345A (en) * | 2018-12-24 | 2019-02-19 | 南京工程学院 | A kind of intelligence take-away temporary storage cabinet |
| CN109984437A (en) * | 2019-05-09 | 2019-07-09 | 深圳市喜拉科技有限公司 | A kind of lunch box heated using battery |
| CN113116035A (en) * | 2020-01-16 | 2021-07-16 | 金华职业技术学院 | Automatic intelligent temperature control lunch bag control system and control method thereof |
-
2018
- 2018-02-28 CN CN201820286070.1U patent/CN207979189U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109360345A (en) * | 2018-12-24 | 2019-02-19 | 南京工程学院 | A kind of intelligence take-away temporary storage cabinet |
| CN109984437A (en) * | 2019-05-09 | 2019-07-09 | 深圳市喜拉科技有限公司 | A kind of lunch box heated using battery |
| CN113116035A (en) * | 2020-01-16 | 2021-07-16 | 金华职业技术学院 | Automatic intelligent temperature control lunch bag control system and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181019 Termination date: 20190228 |
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| CF01 | Termination of patent right due to non-payment of annual fee |