CN2750540Y - Electric blanket - Google Patents
Electric blanket Download PDFInfo
- Publication number
- CN2750540Y CN2750540Y CN 200420017856 CN200420017856U CN2750540Y CN 2750540 Y CN2750540 Y CN 2750540Y CN 200420017856 CN200420017856 CN 200420017856 CN 200420017856 U CN200420017856 U CN 200420017856U CN 2750540 Y CN2750540 Y CN 2750540Y
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- CN
- China
- Prior art keywords
- temperature
- heating
- switch
- electric blanket
- gear
- 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.)
- Expired - Fee Related
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- Control Of Resistance Heating (AREA)
Abstract
The utility model relates to an electric blanket which can be automatically switched off at a certain temperature during application. The electric blanket is electrified by a domestic 220V power supply through a socket, heating electric resistance wires are connected to the electric blanket by a knife switch, and then, a closed resistance heating circuit is formed. The traditional knife switch is replaced by a temperature control switch, high, low and close gears are formed on a panel of the knife switch, the control input contact point of the temperature control switch is connected with a temperature probe arranged side by side on the edges of the heating resistance wires of the electric blanket, and then, the heating temperature achieved can be monitored. The resistance wires start working when a transfer switch on the panel of the temperature control switch is turned on and the high gear or the low gear is selected according to personnel will; when the heating temperature monitored by the temperature probe achieves a set value, the temperature control switch is automatically turned off, the transfer switch on the high gear or the low gear is caused to be in the close gear, the power supply is switched off, and thus, the function of safe protection is performed.
Description
Affiliated technical field
The utility model relates to a kind of electric blanket, especially can the automatic safe powered-down after temperature reaches predetermined temperature in using the electric blanket process.
Background technology
At present, known electric blanket is to constitute a simple heating circuit with resistance wire and switch, generate heat by resistance wire and to warm oneself, realize adjusting temperature by being provided with high and low on the switch and closing third gear, but after setting retaining, power supply close to such an extent that reach by manual, easy like this causing after the heating of user's power-on is owing to forget that powered-down, the temperature of heating will continue to raise, thereby cause fire to take place, have potential safety hazard.
Summary of the invention
Can not arrive the setting shelves back weak point of powered-down automatically in the heating temperature in order to overcome existing electric blanket; the utility model provides a kind of electric blanket; this electric blanket not only can play the effect of heating heating; and can arrive a setting shelves back auto power off in the heating temperature, the safeguard protection effect is provided.
The technical scheme that its technical problem that solves the utility model adopts is: family expenses 220v electricity inserts by plug, through knife switch, connect heating resistance wire again and constitute closed resistance heating circuit, here adopt temperature detect switch (TDS) to replace traditional knife switch, be set with high and low on the temperature detect switch (TDS) panel and close three gears, the control input contact of temperature detect switch (TDS) connects a temp probe, temp probe is placed on the heating resistance wire limit of electric blanket side by side, and the heating temperature that reaches is monitored.Only need to open change over switch on the temperature detect switch (TDS) panel after " height " or " low " grade according to own hobby; resistance wire begins heating work; after temp probe monitoring heating temperature arrives setting shelves temperature; the temperature detect switch (TDS) automatic trip; low from " height " or " " gear skips to " closing " shelves; deenergization plays the safeguard protection effect.
The beneficial effects of the utility model are, not only can replace general electric blanket to use, and the more important thing is that reach in the heating temperature can auto power off after setting the shelves temperature, play the safeguard protection effect, and circuit are simple.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is circuit theory diagrams of the present utility model.
1. plugs among the figure, 2. electric wire, 3. temperature detect switch (TDS), 4. heating resistance wire, 5. temp probe, 6. change over switch.
Embodiment
In Fig. 1, plug (1) directly connects the 220v domestic power supply, be connected with temperature detect switch (TDS) (3) through electric wire (2), the temperature control of temperature detect switch (TDS) inserts the contact and connects temp probe (5), the power supply leading-out wire of temperature detect switch (TDS) (3) is connected with heating resistance wire (4) simultaneously, the temperature detect switch (TDS) panel is provided with change over switch (6), change over switch (6) can be put with " height ", any one gear in " low " or " closing " three gears, i.e. " H " that indicates in the corresponding diagram respectively, " L " and " 0FF " three gears: when change over switch (6) is changed to " height " gear by " closing " gear, the corresponding higher trip temperature of this gear, temperature detect switch (TDS) (3) seals in a small resistor and connects circuit, the voltage that assurance is divided on the heating resistance wire (4) is higher, thereby heating is very fast, change over switch (6) is changed to " low " gear by " closing " gear, the corresponding lower trip temperature of this gear, temperature detect switch (TDS) (3) seals in a big resistance and connects circuit, the voltage that assurance is divided on the heating resistance wire (4) is lower, thereby heating is slower; After the operator is changed to " height " or " low " gear with change over switch (6) by " closing " gear; seal in the resistance of different sizes respectively; and connection entire circuit; heating resistance wire (4) begins heating work; after temp probe (5) monitors temperature rising arrival setting shelves temperature, temperature detect switch (TDS) (3) automatic trip, change over switch (6) is got back to " closing " gear automatically; deenergization plays the safeguard protection effect.
In Fig. 2, frame of broken lines middle part submeter temperature indicating control switch (3) circuit part, power supply directly is connected with temperature detect switch (TDS) (3) through plug, under the inoperative situation, the plug-in strip K of temperature detect switch (TDS) (3) is in the C position, the plug-in strip K of temperature detect switch (TDS) contacts with A or B point under the operating state, seal in two resistance in different size of R1 or R2 respectively, heating resistance wire (4) resistance is R3, know by Ohm's law, connecting the voltage that is divided under A point and two kinds of situations of B point on the R3 can be different, thereby has realized the artificial adjusting to the temperature height; When in either case, heating resistance wire (4) begins heating work, temp probe (5) monitor temperature rise to set the shelves temperature after, temperature detect switch (TDS) (3) automatic trip places C point position, auto power off with plug-in strip K.
Claims (3)
1. electric blanket, be linked in sequence by plug, electric wire, temperature detect switch (TDS) and heating resistance wire, it is characterized in that: plug is connected with temperature detect switch (TDS) through electric wire, and the temperature detect switch (TDS) other end is connected with heating resistance wire, and the control contact joint of temperature detect switch (TDS) is connected with temp probe.
2. electric blanket according to claim 1 is characterized in that: temp probe is installed on the heating resistance wire limit of electric blanket.
3. electric blanket according to claim 1 is characterized in that: temp probe, temperature detect switch (TDS) are formed the too high trip free device of a sleeving temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420017856 CN2750540Y (en) | 2004-04-23 | 2004-04-23 | Electric blanket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420017856 CN2750540Y (en) | 2004-04-23 | 2004-04-23 | Electric blanket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2750540Y true CN2750540Y (en) | 2006-01-04 |
Family
ID=35823917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420017856 Expired - Fee Related CN2750540Y (en) | 2004-04-23 | 2004-04-23 | Electric blanket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2750540Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104382432A (en) * | 2014-11-06 | 2015-03-04 | 苏州爱马仕服饰有限公司 | Multifunctional heating blanket |
-
2004
- 2004-04-23 CN CN 200420017856 patent/CN2750540Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104382432A (en) * | 2014-11-06 | 2015-03-04 | 苏州爱马仕服饰有限公司 | Multifunctional heating blanket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |