CN102894895A - Simple convenient homemade constant temperature box - Google Patents
Simple convenient homemade constant temperature box Download PDFInfo
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- CN102894895A CN102894895A CN 201210355737 CN201210355737A CN102894895A CN 102894895 A CN102894895 A CN 102894895A CN 201210355737 CN201210355737 CN 201210355737 CN 201210355737 A CN201210355737 A CN 201210355737A CN 102894895 A CN102894895 A CN 102894895A
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- electromagnetic relay
- heating wire
- switch
- thermistor
- electric heating
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Abstract
The invention discloses a simple convenient homemade constant temperature box which is mainly formed by an electromagnetic relay, a thermistor, an electric heating wire, a sliding rheostat, a switch, a power supply and a lead. The electromagnetic relay is connected with the electric heating wire, the electric heating wire is connected with the right end of the sliding rheostat, the left end of the sliding rheostat is connected with the electromagnetic relay. The sliding rheostat is connected with the switch, the upper end of the switch is connected with the power supply, and the lower end of the switch is connected with one end of the electric heating wire. The left end of the thermistor is connected with the electromagnetic relay, and the right end of the thermistor is connected with the power supply. The rest portions are connected through the lead so as to form a simple convenient homemade constant temperature box. During use, the switch is connected, when the temperature is lower than a preset value, the resistance of the thermistor is large, current passing through the electromagnetic relay is too small to enable the electromagnetic relay to work normally, and the electric heating wire is connected to heat. When the temperature reaches the preset value, the resistance of the thermistor is small, the electromagnetic relay works normally, the switch is disconnected, and the electric heating wire stops heating. The process is conducted repeatedly, and a purpose of constant temperature is achieved.
Description
Technical field
The present invention's design is a kind of insulating box, especially designs a kind of simple and easy convenient self-control insulating box.
Background technology
At present, the mankind are being busy with work all day long, in addition the time of having a meal all taken by work, sometimes just can only eat freezing food, but be very large to our injury of health like this, often like this, we are fallen ill.Also have, when people concentrate one's energy to do things, tend to ignore many things, such as, when people boil water sometimes, can forget that water held and do not go to manage it, also tend to cause huge loss to us.For our living environment, living safety is more secure, and I feel to be necessary to make a kind of simple and easy convenient self-control insulating box of energy auto-breaking Automatic-heating.
Summary of the invention
The present invention designs problem to be solved and is to provide a kind of simple and easy convenient self-control insulating box.Its preparation method is simple, and price is very cheap, use also very convenient, for life at home offers convenience.
For solving above technical problem, the technical scheme of the present invention's design is as follows:
A kind of simple and easy convenient self-control insulating box, mainly by electromagnetic relay, thermistor, heating wire, slide rheostat, switch, power supply, wire consists of.Wherein, described electromagnetic relay links to each other with heating wire; Described heating wire is connected in the slide rheostat right-hand member, slide rheostat left end and electromagnetic relay; Described slide rheostat links to each other with switch, and the switch upper end is connected on the power supply, and the lower end is connected in heating wire one end; Described thermistor left end is connected with electromagnetic relay, and right-hand member links to each other with power supply; Remainder connects with wire, has just consisted of simple and easy convenient self-control insulating box.
The beneficial effect of the present invention's design is: simple in structure, easy to make, cost is low, and is simple to operation during use, offers convenience for living at home.
Description of drawings
Accompanying drawing is the design principle schematic diagram of a simple and easy convenient self-control insulating box.
The specific embodiment
Below in conjunction with drawings and Examples the present invention's design is described further:
As shown in drawings, the present invention designs mainly by 1 electromagnetic relay, 2 thermistors, and 3 heating wire, 4 slide rheostats, 5 switches, 6 power supplys, 7 wires consist of.Wherein, described 1 electromagnetic relay links to each other with 3 heating wire; Described 3 heating wire are connected in 4 slide rheostat right-hand members, 4 slide rheostat left ends and 1 electromagnetic relay; Described 4 slide rheostats link to each other with 5 switches, and 5 switches upper end is connected on 6 power supplys, and the lower end is connected in 3 heating wire, one end; Described 2 thermistor left ends are connected with 1 electromagnetic relay, and right-hand member links to each other with 6 power supplys; Remainder connects with 7 wires, has just consisted of simple and easy convenient self-control insulating box.
The present invention's design is to use like this:
During use, first Closing Switch; When temperature is lower than when setting value, the thermistor resistance is large, and the electric current by electromagnetic relay is too little and can not make its normal operation, thereby connecting heating wire makes its heating; When temperature reached setting value, the thermistor resistance diminished, and made the electromagnetic relay normal operation, and switch disconnects, the heating wire stopped heating.Said process carries out repeatedly, thereby reaches the purpose of constant temperature.
Claims (3)
1. an invention designs simple and easy convenient self-control insulating box, mainly by 1 electromagnetic relay, and 2 thermistors, 3 heating wire, 4 slide rheostats, 5 switches, 6 power supplys, 7 wires consist of.
2. the technical problem of designing institute solution of the present invention is to provide a kind of simple and easy convenient self-control insulating box, and its composition is simple, and is very convenient to use, safe to use, for family facilitates.
3. simple and easy convenient self-control insulating box according to claim 1, it is characterized in that: described 1 electromagnetic relay links to each other with 3 heating wire; Described 3 heating wire are connected in 4 slide rheostat right-hand members, 4 slide rheostat left ends and 1 electromagnetic relay; Described 4 slide rheostats link to each other with 5 switches, and 5 switches upper end is connected on 6 power supplys, and the lower end is connected in 3 heating wire, one end; Described 2 thermistor left ends are connected with 1 electromagnetic relay, and right-hand member links to each other with 6 power supplys; Remainder connects with 7 wires, has just consisted of simple and easy convenient self-control insulating box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210355737 CN102894895A (en) | 2012-09-09 | 2012-09-09 | Simple convenient homemade constant temperature box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210355737 CN102894895A (en) | 2012-09-09 | 2012-09-09 | Simple convenient homemade constant temperature box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102894895A true CN102894895A (en) | 2013-01-30 |
Family
ID=47567604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210355737 Pending CN102894895A (en) | 2012-09-09 | 2012-09-09 | Simple convenient homemade constant temperature box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102894895A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103385294A (en) * | 2013-06-29 | 2013-11-13 | 苏州吉康电子科技有限公司 | Constant temperature sour milk fermentation case |
-
2012
- 2012-09-09 CN CN 201210355737 patent/CN102894895A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103385294A (en) * | 2013-06-29 | 2013-11-13 | 苏州吉康电子科技有限公司 | Constant temperature sour milk fermentation case |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130130 |