CN202760424U - Vacuum preserving electrically-heated lunch box - Google Patents
Vacuum preserving electrically-heated lunch box Download PDFInfo
- Publication number
- CN202760424U CN202760424U CN 201220337117 CN201220337117U CN202760424U CN 202760424 U CN202760424 U CN 202760424U CN 201220337117 CN201220337117 CN 201220337117 CN 201220337117 U CN201220337117 U CN 201220337117U CN 202760424 U CN202760424 U CN 202760424U
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- electric heating
- box
- lunch
- box body
- vacuum
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Abstract
The utility model discloses a vacuum preserving electrically-heated lunch box which comprises a box cover and a box body. The box cover and the box body match with each other. An interlayer with an electric heating system is disposed on the periphery and bottom of the box body. A valve for evacuation is disposed on the box cover. A seal device is disposed on the periphery of the box cover. The valve is connected with a vacuuming pump to be used with the vacuuming pump to pump out air in the box, so that the box is vacuumed. A temperature controller is disposed on the outer wall of the box body and is connected with the electric heating system. The outer wall of the box body is provided with a power interface which a seal cover is arranged on. The inner wall of the interlayer is provided with insulating material. The vacuum preserving electrically-heated lunch box is convenient and practical, is portable, is plugged to heat meal, and is especially suitable for cold days. The vacuum preserving electrically-heated lunch box can be vacuumed to prevent food from rotting and keep freshness, so that the food is kept fresh when carried. Compared with common lunch boxes needing to be heated by high-power electrical appliances such as microwave ovens, the vacuum preserving electrically-heated lunch box is provided with the electric heating system low in power and is energy-saving and highly safe.
Description
Technical field
The utility model relates to a kind of lunch box, is specifically related to a kind of vacuum freshness retaining electric heating lunch-box.
Background technology
For working clan and student family, often use the lunch box splendid attire food unit of being carried into or school edible, but this kind way is higher to the requirement of environment temperature, usually morning reeky food, by the time noon is ice-cold, particularly in autumn and winter season, or in the north than cryogenic region.If do not possess simultaneously refrigerator and firing equipment (such as micro-wave oven), a lot of people also can abandon way with meal during heat so.In addition, the food in the lunch box is in the process of preserving, and the microbes of air corrosion food causes food stale, is unsuitable for health after eating.
The utility model content
The utility model purpose: the purpose of this utility model is for the deficiencies in the prior art, and a kind of fresh-keeping effect and can electrically heated vacuum freshness retaining electric heating lunch-box of having is provided.
Technical scheme: a kind of vacuum freshness retaining electric heating lunch-box described in the utility model, comprise lid and box body, lid and box body big or small suitable, around the box body and bottom is provided with the interlayer of layout electric heating system, be provided for the valve that vacuumizes on the lid, the lid periphery is provided with sealing device.
The bottom at described lid edge is provided with groove, and sealing device is the sealing ring that is arranged in the groove, and lid covers and keeps sealing state in the back box, and the cooperation valve connects vacuum air pump and extracts air in the box out, forms vacuum state, makes the interior food of box keep fresh.
Electric heating system described in the utility model can be accomplished in several ways, and having of comparative optimization is following several:
1, described electric heating system is the electric heating coating of brush on the interlayer wall, and described electric heating coating is a kind of temperature-sensitive material, and during heating, the resistance value of temperature-sensitive material is lower, and the electric heating coating temperature raises rapidly, with the food in the heat transferred box body; When temperature rose to certain value, the resistance of temperature-sensitive material increased rapidly, and the temperature of electric heating coating no longer rises, and remained in the current temperature range, formed keeping warm mode.
2, described electric heating system is the electric heating sheets that is tiled in the interlayer, described electric heating sheets is stainless steel electric heating sheets, ceramic electric heating sheet, cast aluminium electric heating sheets or cast copper electric heating sheets, this electric heating sheets power is little, high temperature resistant, can guarantee that food is heated to higher temperature, be applicable to use autumn and winter.
3, described electric heating system is the electrical heating wire that is arranged in the interlayer, between every electrical heating wire the interval is arranged, prevent that contact from causing short circuit, and assurance homogeneous heating, also can be arranged in the box body diverse location, realize the box body partition heating, further, select the heating wire of different resistances, satisfy the demand of lunch box zones of different different heating temperature.
In the utility model, on the outer wall of box body attemperating unit is set, attemperating unit connects electric heating system, regulates different heating-up temperatures according to different needs.
On the outer wall of box body power interface is set, on the described power interface seal cover is arranged, the interface that plugs in energising, described electric heating system and temperature control system work; When not working, cover seal cover, keep the vacuum of lunch box inside.
In order further to guarantee the security performance of lunch box, prevent the electric heating system electric leakage, described interlayer inwall is provided with insulating materials.
Beneficial effect: 1, the utility model is convenient and practical, can carry, and plugs electricity and can heat food, is particularly suitable for using than cold weather; 2, can form vacuum state in the box, prevent that food from rotting, keep fresh, guarantee that food is still delicious in carrying process, be with summer meal also freshness-retained; 3, the contrast ordinary lunch-box need use the high-power electric appliance such as micro-wave oven to heat, and electric heating system power of the present utility model is little, energy saving, and security performance is high.
Description of drawings
Fig. 1 is the structural representation of the utility model device;
Fig. 2 is the A-A cutaway view of embodiment 1;
Fig. 3 is the A-A cutaway view of embodiment 2;
Fig. 4 is the A-A cutaway view of embodiment 3.
The specific embodiment
The below is elaborated to technical solutions of the utility model, but protection domain of the present utility model is not limited to described embodiment.
Embodiment 1:As shown in Figure 1, a kind of vacuum freshness retaining electric heating lunch-box, comprise lid 1 and box body 2, lid 1 and box body 2 big or small suitable is provided for the valve 4 that vacuumizes on the lid, the bottom at lid edge is provided with groove, sealing device is the sealing ring 5 that is arranged in the groove, and lid 1 covers and keeps sealing state in the back box, cooperates valve 4 to connect vacuum air pump and extracts air in the box out, form vacuum state, make the interior food of box keep fresh.Around the box body 2 and bottom is provided with the interlayer 3 of arranging electric heating system, attemperating unit 6 is set on the outer wall of box body, and attemperating unit 6 connects electric heating system, regulates different heating-up temperatures according to different needs, power interface 7 is set on the outer wall of box body, on the described power interface 7 seal cover 8 is arranged, during use, open seal cover 8, interface 7 energisings plug in, electric heating system and temperature control system 6 work are brushed with insulating coating on the interlayer inwall, prevent electric leakage.
As shown in Figure 2, electric heating system is the electric heating coating 9 of brush on the interlayer wall, and described electric heating coating 9 is a kind of temperature-sensitive material, temperature control system 6 is arranged on 60 ℃, when just beginning to heat, the resistance value of temperature-sensitive material is lower, along with the rising of temperature with the food in the heat transferred box body; When temperature rose to 60 ℃, the resistance of temperature-sensitive material increased rapidly, and the temperature of electric heating coating 9 no longer rises, and remained in the current temperature range, formed keeping warm mode.
Embodiment 2:The present embodiment is different from the electric heating system of embodiment 1, other parts are identical, as shown in Figure 3, electric heating system is the ceramic electric heating sheet 10 that is tiled in the interlayer, this electric heating sheets power is little, high temperature resistant, can heating-up temperature be arranged on higher temperature by temperature control system, be applicable to use autumn and winter.
Embodiment 3:The present embodiment is different from the electric heating system of above-described embodiment, and other parts are identical, and as shown in Figure 4, electric heating system is the electrical heating wire 11 that is arranged in the interlayer, and electrical heating wire 11 placements that be parallel to each other prevents short circuit, and the assurance homogeneous heating.
As mentioned above, although represented and explained the utility model with reference to specific preferred embodiment, it shall not be construed as the restriction to the utility model self.Under the spirit and scope prerequisite of the present utility model that does not break away from the claims definition, can make in the form and details various variations to it.
Claims (9)
1. vacuum freshness retaining electric heating lunch-box, it is characterized in that: comprise lid and box body, lid and box body are suitable, and around the described box body and bottom is provided with the interlayer of arranging electric heating system, the valve that is provided for vacuumizing on the described lid, the lid periphery is provided with sealing device.
2. vacuum freshness retaining electric heating lunch-box according to claim 1 is characterized in that: described electric heating system is the electric heating coating of brush on the interlayer wall, and described electric heating coating is temperature-sensitive material.
3. vacuum freshness retaining electric heating lunch-box according to claim 2, it is characterized in that: described electric heating system is the electric heating sheets that is tiled in the interlayer, and described electric heating sheets is stainless steel electric heating sheets, ceramic electric heating sheet, cast aluminium electric heating sheets or cast copper electric heating sheets.
4. vacuum freshness retaining electric heating lunch-box according to claim 2 is characterized in that: described electric heating system is the electrical heating wire that is arranged in the interlayer, between every electrical heating wire the interval is arranged.
5. vacuum freshness retaining electric heating lunch-box according to claim 1 is characterized in that: described sealing device is the sealing ring that is arranged in the lid bottom margin groove.
6. vacuum freshness retaining electric heating lunch-box according to claim 1 is characterized in that: air in the described valve connection vacuum air pump cooperation extraction box, formation vacuum state.
7. vacuum freshness retaining electric heating lunch-box according to claim 1, it is characterized in that: on the outer wall of described box body attemperating unit is set, attemperating unit connects described electric heating system.
8. vacuum freshness retaining electric heating lunch-box according to claim 1 is characterized in that: on the outer wall of described box body power interface is set, on the described power interface seal cover is arranged.
9. vacuum freshness retaining electric heating lunch-box according to claim 1, it is characterized in that: described interlayer inwall is provided with insulating materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220337117 CN202760424U (en) | 2012-07-12 | 2012-07-12 | Vacuum preserving electrically-heated lunch box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220337117 CN202760424U (en) | 2012-07-12 | 2012-07-12 | Vacuum preserving electrically-heated lunch box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202760424U true CN202760424U (en) | 2013-03-06 |
Family
ID=47767041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220337117 Expired - Fee Related CN202760424U (en) | 2012-07-12 | 2012-07-12 | Vacuum preserving electrically-heated lunch box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202760424U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108298178A (en) * | 2018-04-12 | 2018-07-20 | 江苏锡宇汽车有限公司 | The anti-oxidation anticollision privacy protection box of impeller body |
-
2012
- 2012-07-12 CN CN 201220337117 patent/CN202760424U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108298178A (en) * | 2018-04-12 | 2018-07-20 | 江苏锡宇汽车有限公司 | The anti-oxidation anticollision privacy protection box of impeller body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20150712 |
|
| EXPY | Termination of patent right or utility model |