CN2082582U - Constant temp. heater for lunch-box - Google Patents
Constant temp. heater for lunch-box Download PDFInfo
- Publication number
- CN2082582U CN2082582U CN 90226096 CN90226096U CN2082582U CN 2082582 U CN2082582 U CN 2082582U CN 90226096 CN90226096 CN 90226096 CN 90226096 U CN90226096 U CN 90226096U CN 2082582 U CN2082582 U CN 2082582U
- Authority
- CN
- China
- Prior art keywords
- box
- box body
- lunch box
- lunch
- heater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Abstract
The utility model relates to a constant temperature heater for a lunch box belonging to the electric heater, which is mainly composed of a box body (2), and a box cover (1). Cooling plates are arranged on the bottom of the inner cavity of the box body (2), the PTC ceramic thermistors under the cooling plates generate heat energy, and the lunch box can be heated and can keep constant temperature when put on the cooling plates. The utility model is suitable to heat lunch boxes with food for the staffs with lunch boxes on duty.
Description
The utility model relates to a kind of lunch box constent temperature heater, belongs to electric heating appliance.
Usually people's working tape meal of having a meal just can't be able to eat the food of heat under the situation that does not have steaming equipment, feel very inconvenient, and just hope is looked for a heating appliances in addition and is used to heat food.
The purpose of this utility model is to provide a kind of lunch box constent temperature heater that utilizes city's power supply for the energy.Known to the applicant, existing incubation canteen, electric heating mess tin is large in the variety, all can not constant temperature, though the product of existing recently electronic heater, electrons heat dish and so on, owing to only considered constant temperature, the heating of lunch box bottom, effect is restriction to some extent just.The related lunch box constent temperature heater of the utility model is except carrying out the heated constant temperature the bottom of lunch box, and whole lunch box all has the box body and the lid insulation of this heater, and heat is fully utilized.
Structure of the present utility model is such, and at lunch box constent temperature heater box body inner bottom part 1.5cm place, design has a metallic heat radiating plate, is to go up insulating trip below the heat sink, is the PTC element below the last insulating trip, is the ceramic insulation seat below the PTC element.Its complementary space below the metallic heat radiating plate is the ceramic fibre thermal insulation board, and electrode socket is installed in the bottom of box body end wall.
Advantage of the present utility model is to use the heat resistance characteristic of PTC element that heated at constant temperature is carried out in the lunch box bottom, and whole lunch box gives heat-insulation and heat-preservation by this lunch box constent temperature heater, has shortened heat time heating time, has saved the energy.
The box body that is also advantageous in that of the present utility model adopts ceramic material, has ceramic peculiar hear resistance, chemical stability and corrosion resistance.
Below in conjunction with description of drawings detailed structure of the present utility model
Accompanying drawing is the schematic diagram of this lunch box constent temperature heater.(2) are the box body of lunch box constent temperature heater among the figure, (1) is lid, (3) be and box body (2) the bottom metallic heat radiating plate that inner chamber mated, heat sink (3) lower surface is close to the last insulating trip (5) of mica material, being PTC element (6) below the last insulating trip (5), is ceramic insulation seat (7) below the PTC element (6).Following all the other space segments of metallic heat radiating plate (3) are ceramic fibre thermal insulation board (4).This lunch box perseverance adds the bottom of supply socket (8) design of warmer at box body (2) end wall.
During use, the lunch box that fills food places on the metallic heat radiating plate.
Claims (4)
1, a kind of lunch box constent temperature heater, comprise box body (2), lid (1), the inner bottom part that it is characterized in that box body (2), design has the heat sink (3) that is complementary with the box body inner chamber, last insulating trip (5) is arranged below the heat sink (3), is PTC element (6) below the last insulating trip (5), is insulating base (7) below the PTC element (6), all the other following space segments of heat sink (3) are thermal insulation board (4), and supply socket (8) is located at the end wall bottom of box body (2).
2,, it is characterized in that the PTC element is this lunch box constent temperature heater heater element according to the described lunch box constent temperature heater of claim 1.
3, it is characterized in that according to the described lunch box constent temperature heater of claim 1 above-mentioned thermal insulation board is a ceramic fibre material.
4, it is characterized in that according to the described lunch box constent temperature heater of claim 1 above-mentioned box body is to use ceramic material, and whole lunch box is had the heat-insulation and heat-preservation effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90226096 CN2082582U (en) | 1990-12-20 | 1990-12-20 | Constant temp. heater for lunch-box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90226096 CN2082582U (en) | 1990-12-20 | 1990-12-20 | Constant temp. heater for lunch-box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2082582U true CN2082582U (en) | 1991-08-14 |
Family
ID=4903414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90226096 Withdrawn CN2082582U (en) | 1990-12-20 | 1990-12-20 | Constant temp. heater for lunch-box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2082582U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105662167A (en) * | 2016-04-11 | 2016-06-15 | 洪明 | Intelligent food heater |
-
1990
- 1990-12-20 CN CN 90226096 patent/CN2082582U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105662167A (en) * | 2016-04-11 | 2016-06-15 | 洪明 | Intelligent food heater |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2367328C (en) | Method of conducting thermal energy, thermal conductor, and electrical appliance using the thermal conductor | |
| CN2082582U (en) | Constant temp. heater for lunch-box | |
| CN2385641Y (en) | Smoldering and cooking two-body cooker | |
| CN111345698A (en) | Portable heating container | |
| CN2044703U (en) | Semiconductor freezing and heating appliance | |
| CN2414701Y (en) | Double-layer electric cooker | |
| CN214712008U (en) | Movable pan structure | |
| CN2087925U (en) | Lunch-box warming device | |
| CN213371401U (en) | Cooking utensil | |
| CN212165623U (en) | Portable heating container | |
| CN2177416Y (en) | Electrothermic insulation rice pot | |
| CN2246979Y (en) | High-efficient energy-saving electric cooker | |
| KR860001713Y1 (en) | Lunch-basket for thermally insulated | |
| CN2140671Y (en) | Temp-regulating electric heating cup | |
| CN2170713Y (en) | Electric heating roaster | |
| CN2143939Y (en) | Automatic milk heater | |
| CN206303361U (en) | A kind of cell-heated type lunch box | |
| CN2149158Y (en) | Temp. adjustable electric heating cooker | |
| CN2109797U (en) | Electric heat thermal insulation box | |
| CN2178331Y (en) | Portable electric stove | |
| CN2415280Y (en) | Electrothermal film heater | |
| CN2268451Y (en) | Thermal insulating lunchbox | |
| CN2236275Y (en) | Lunchbox with electric heating membrane | |
| CN2221919Y (en) | Temp.-adjustable meal dish | |
| CN2130725Y (en) | Micro-electric film heat insulation box used in automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |