CN204049015U - A kind of safe voltage fire-type electric heating hand warming mat applying - Google Patents
A kind of safe voltage fire-type electric heating hand warming mat applying Download PDFInfo
- Publication number
- CN204049015U CN204049015U CN201420522293.5U CN201420522293U CN204049015U CN 204049015 U CN204049015 U CN 204049015U CN 201420522293 U CN201420522293 U CN 201420522293U CN 204049015 U CN204049015 U CN 204049015U
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- CN
- China
- Prior art keywords
- heating film
- safe voltage
- type electric
- mat applying
- hand warming
- 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 - Lifetime
Links
- 238000005485 electric heating Methods 0.000 title claims abstract description 16
- 238000010792 warming Methods 0.000 title claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 43
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000004744 fabric Substances 0.000 claims abstract description 11
- 238000009413 insulation Methods 0.000 claims description 16
- 230000003750 conditioning effect Effects 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000037431 insertion Effects 0.000 abstract description 2
- 238000003780 insertion Methods 0.000 abstract description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Control Of Resistance Heating (AREA)
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
Abstract
The utility model provides a kind of safe voltage fire-type electric heating hand warming mat applying, adopts 24V safe voltage, even if the danger that user does not also get an electric shock due to maloperation insertion needle pin, guarantees user's life safety; When the compliant member temperature of electrothermal table mat raises, heating film makes its impedance increase due to positive temperature characterisitic, and caloric value is reduced power drop thus compliant member temperature can not continue to rise, and reaches the object of constant temperature; Bed material, fabric and heating film have certain flexibility, and mat applying can bend with curling, are convenient for carrying and deposit.
Description
Technical field
The utility model relates to small household appliances electric heating appliance, particularly relates to a kind of fire-type electric heating hand warming mat applying adopting safe voltage.
Background technology
When electric heating hand warming mat applying is a kind of winter for being laid in table top learning or office, the heating cushion of warm hand, produce the effect that heat reaches local heat, to such an extent as to user's hand feels warm when heating cushion passes to electric current.Mostly electric heating hand warming mat applying popular is at present employing 220V mains-supplied, there is potential safety hazard, if in use there is needle pin to insert, then the danger of getting an electric shock may occur; In addition, if it being coated with the heat-barrier materials such as thick and heavy article when using mat applying, may overtemperature being there is, burn even breaking out of fire can be caused to user.
Summary of the invention
In order to solve the above problems, the utility model provides a kind of 24V safe voltage and has the electric heating hand warming mat applying of overtemperature prote.
Electric heating hand warming mat applying is made up of the bed material that insulate, 24V heating film, insulation fabric, control device and power supply adaptor; Described insulation fabric, 24V heating film and insulation bed material to combine formation compliant member by order from top to bottom; control device is installed on compliant member; two inputs of 24V heating film are connected with wire with the output of control device; coupler plug and the coupler socket of control device of power supply adaptor are connected to provide completely isolated 24V alternating voltage, and described control device is made up of input circuit, circuit overcurrent protection, power conditioning circuitry and power indicating circuit.
Insulation bed material, insulation fabric and 24V heating film have certain flexibility, and therefore mat applying can bend with curling.Power supply adaptor is 24V alternating current to supply flexible instrument heating 220V convert alternating current, due to use safety voltage, even if user inserts due to maloperation the danger that needle pin also do not get an electric shock, guarantees user's life safety.Electric heating hand warming mat applying is laid on desktop to use, because its surface temperature of thermal balance is 40 ~ 45 DEG C in normal use, but in use probably produce heat insulation by covering thick and heavy article thereon, make its heat accumulation surface temperature even reach more than 150 DEG C, this just causes a kind of potential injury to user or causes fire hazard.Heater element of the present utility model is the 24V heating film between fabric and bed material, 24V heating film has positive temperature characterisitic, its impedance raises along with temperature and increases, power then increases with temperature and reduces, even if also too high temperature can not be produced under above-mentioned non-normal use state, thus ensure the safety of use.
Circuit working principle of the present utility model is input circuit is coupler socket CZ; current foldback circuit is made up of BX; power conditioning circuitry is made up of DPTT double-pole triple throw K switch, commutation diode D2, and power indicating circuit is made up of R1, R2, LED1, LED2 and D1, and RL is heating film.When 24V power supply is input to control device by CZ, a pole of power supply is connected to an electrode C of heating film through BX; Stepping adjustment is carried out by K in another pole of power supply, when K is positioned at preheating shelves " 2 ", is directly added on another electrode R of heating film, and indicator lamp LED1 and LED2 lights simultaneously; When K is positioned at gear " 1 ", by the electrode R by receiving heating film after commutation diode D2 again, indicator lamp LED1 lights; When K is in gear " 0 ", electric current just can not be added on the electrode R of heating film; Like this through the adjustment of K, heating film and even compliant member just achieve the power adjusting of " height ", " low ", "Off".
The beneficial effects of the utility model are, electrothermal table mat adopts 24V safe voltage, even if the danger that user does not also get an electric shock due to maloperation insertion needle pin, guarantee user's life safety; When the compliant member temperature of electrothermal table mat raises, heating film makes its impedance increase due to positive temperature characterisitic, and caloric value is reduced power drop thus compliant member temperature can not continue to rise, and reaches the object of constant temperature; Bed material, fabric and heating film have certain flexibility, and mat applying can bend with curling, are convenient for carrying and deposit.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is work sheet of the present utility model.
In figure, 1, insulation fabric, 2,24V heating film, 3, insulation bed material, 4, control device, 5, coupler plug, 6, adapter.
Fig. 2 is the circuit theory diagrams of control device.
Specific embodiment
In FIG, the bonding integral composition compliant member of insulative glue used each other by insulation fabric 1,24V heating film 2, insulation bed material 3.Control device 4 with coupler socket adopts physical connection mode to be installed on compliant member, and the coupler plug 5 on adapter 6 inserts in the coupler socket of control device 4.220V civil power is transformed to 24V by power supply adaptor and is input to control device, then is input to heating film 2 by control device.
In fig. 2, input circuit is coupler socket CZ, and current foldback circuit is made up of BX, and power conditioning circuitry is made up of DPTT double-pole triple throw K switch, commutation diode D2, and power indicating circuit is made up of R1, R2, LED1, LED2 and D1, and RL is heating film.When 24V power supply is input to control device by CZ, a pole of power supply is connected to an electrode C of heating film through BX; Stepping adjustment is carried out by K in another pole of power supply, when K is positioned at preheating shelves " 2 ", is directly added on another electrode R of heating film, and indicator lamp LED1 and LED2 lights simultaneously; When K is positioned at gear " 1 ", by the electrode R by receiving heating film after commutation diode D2 again, indicator lamp LED1 lights; When K is in gear " 0 ", electric current just can not be added on the electrode R of heating film; Like this through the adjustment of K, heating film and even compliant member just achieve the power adjusting of " height ", " low ", "Off".Under above-mentioned " height ", " low " gear stages, namely heating film the two poles of the earth all add to power on has heating current to flow through and is in heated condition, and namely compliant member is also in heated condition.When constant temperature rises, heating film increases due to positive temperature characterisitic impedance, and heating current reduces thus heating power decline, inhibits the further rising of temperature, reaches the object of constant temperature.
Claims (5)
1. a safe voltage fire-type electric heating hand warming mat applying, be made up of insulation bed material, 24V heating film, insulation fabric, control device and power supply adaptor, it is characterized in that described insulation fabric, 24V heating film and insulation bed material to combine formation compliant member by order from top to bottom, control device is installed on compliant member, two inputs of 24V heating film are connected with wire with the output of control device, and the coupler plug of power supply adaptor is connected with the coupler socket of control device.
2. a kind of safe voltage fire-type electric heating hand warming mat applying as claimed in claim 1, is characterized in that described power supply adaptor converts the civil power of 220V to 24V power supply.
3. a kind of safe voltage fire-type electric heating hand warming mat applying as claimed in claim 1, is characterized in that described 24V heating film has positive temperature characterisitic, and its impedance raises along with temperature and increases.
4. a kind of safe voltage fire-type electric heating hand warming mat applying as claimed in claim 1, it is characterized in that described insulation bed material, 24V heating film and insulation fabric are flexible material, therefore safe voltage fire-type electric heating hand warming mat applying can bend with curling.
5. a kind of safe voltage fire-type electric heating hand warming mat applying as claimed in claim 1, is characterized in that the circuit structure of described control device is made up of input circuit CZ, circuit overcurrent protection BX, heating film RL, power conditioning circuitry and power indicating circuit; Described power conditioning circuitry is made up of DPTT double-pole triple throw K switch, commutation diode D2, and power indicating circuit is made up of R1, R2, LED1, LED2 and D1; One pole of input circuit CZ is connected to an electrode C of heating film through BX, stepping adjustment is carried out by K in another pole, and when K is positioned at preheating shelves " 2 ", electric current is directly added on another electrode R of heating film RL, and indicator lamp LED1 and LED2 lights simultaneously; When K is positioned at gear " 1 ", by the electrode R by receiving heating film RL after commutation diode D2 again, indicator lamp LED1 lights; When K is in gear " 0 ", no current is by heating film RL.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420522293.5U CN204049015U (en) | 2014-09-12 | 2014-09-12 | A kind of safe voltage fire-type electric heating hand warming mat applying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420522293.5U CN204049015U (en) | 2014-09-12 | 2014-09-12 | A kind of safe voltage fire-type electric heating hand warming mat applying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204049015U true CN204049015U (en) | 2014-12-31 |
Family
ID=52190627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420522293.5U Expired - Lifetime CN204049015U (en) | 2014-09-12 | 2014-09-12 | A kind of safe voltage fire-type electric heating hand warming mat applying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204049015U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105747726A (en) * | 2016-04-13 | 2016-07-13 | 黑龙江中惠地热股份有限公司 | Electric heating table mat with self-limited temperature and manufacturing method thereof |
| CN105852483A (en) * | 2016-05-26 | 2016-08-17 | 黑龙江中惠地热股份有限公司 | Electric heating chair cushion |
-
2014
- 2014-09-12 CN CN201420522293.5U patent/CN204049015U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105747726A (en) * | 2016-04-13 | 2016-07-13 | 黑龙江中惠地热股份有限公司 | Electric heating table mat with self-limited temperature and manufacturing method thereof |
| CN105852483A (en) * | 2016-05-26 | 2016-08-17 | 黑龙江中惠地热股份有限公司 | Electric heating chair cushion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141231 |
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| CX01 | Expiry of patent term |