CN201164279Y - Radiation-resistant electric heating blanket - Google Patents
Radiation-resistant electric heating blanket Download PDFInfo
- Publication number
- CN201164279Y CN201164279Y CNU2008200737253U CN200820073725U CN201164279Y CN 201164279 Y CN201164279 Y CN 201164279Y CN U2008200737253 U CNU2008200737253 U CN U2008200737253U CN 200820073725 U CN200820073725 U CN 200820073725U CN 201164279 Y CN201164279 Y CN 201164279Y
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- electric blanket
- rectifier
- heating wire
- temperature
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- Control Of Resistance Heating (AREA)
Abstract
The utility model relates to a radiation protection electric blanket, the output end of a rectifier is grounded with a filtration capacitor and a high frequency pass capacitor. An electrically heated wire is composed of core wires, heating wires, a colliquable insulating layer, a shielding layer and an insulation protection layer, wherein, the single end of the shielding layer is grounded, the fusion temperature of the colliquable insulating layer is 130 to 150 DEG C, and the input end of a power rectifier is connected with a fuse in series. The power rectifier of the electric blanket adopts the measures of filtration and pass noise wave, when in the low temperature working status of half wave rectification, the amplitude value of the ripple component of DC voltage reduces obviously. After the electric blanket adopts five layers of heating wires, not only the harmful electromagnetic radiation can be thoroughly eliminated, but also the safety self-protecting function is obtained when the electric blanket loses the control by exceeding the temperature, and the safety use of the electric blanket can be ensured. The electric blanket has the advantage that the physiological equilibrium of the human body in the geomagnetic field can be maintained, thereby being favorable for the sleeping and the physical health.
Description
Technical field
The utility model belongs to electric calorifie installation, particularly relates to a kind of radiation proof electric blanket.
Background technology
The applicant discloses a kind of electric blanket of direct current supply in the utility model " a kind of improved electric blanket " of the patent No. 95220179.8: the heating wire two ends of the direct current crimping electric blanket that AC power is exported behind bridge rectifier, turning round on the blanket tire between each parallel-segment of heating wire of arranging, fixedly the flexibility band of coated iron powder.At the bridge rectifier one input halfwave rectifier diode that is connected in series.
Above-mentioned utility model heating wire when bridge rectifier is the dc high voltage power supply, and electric blanket is in the hot operation state, and heating wire is the DC low-voltage power supply during halfwave rectifier, and electric blanket is in the low-temperature working state.Flexible band can absorb heating wire that revolution the arranges remaining magnetic field, back of cancelling out each other, and also helps the electric blanket surface temperature and is tending towards even.
The applicant also discloses the technical scheme that each parallel-segment of heating wire of arranging in revolution covers banded magnetic masking layer in the utility model " electric blanket of anti-electromagnetic radiation " of the patent No. 01225184.4.The effect of band shape magnetic masking layer is remaining magnetic field after the heating wire of further absorption revolution arrangement is cancelled out each other, and also helps the electric blanket surface temperature and is tending towards even.
The electric blanket of implementing above-mentioned each technical scheme simultaneously has pulse DC supply, electromagnetic radiation is less and the outstanding preferably advantage of Magnetic Shielding Effectiveness.
But when electric blanket was selected the low-temperature working state, the mode of halfwave rectifier was adopted in its direct current supply, and the ripple component amplitude of direct current is higher, and the magnet shielding structure that electric blanket is taked is not enough to thoroughly eliminate its electromagnetic radiations emission.
Summary of the invention
The utility model is for still there is the technical problem of electromagnetic radiations emission in the electric blanket of thoroughly eliminating halfwave rectifier direct current supply when the low-temperature working state, and proposes a kind of radiation proof electric blanket.
The utility model is taked following technical scheme for achieving the above object; This radiation proof electric blanket is by the blanket tire; cover; the heating wire that revolution is arranged; cover the magnetic masking layer of each parallel-segment of heating wire; the temperature controller and the power line thereof that comprise rectifier are formed; it is characterized in that: described rectifier output end is connected with filter condenser and high-frequency bypass capacitor over the ground; the heating wire that described revolution is arranged is by high temperature resistant heart yearn; be wound in the heating wire of heart yearn; cover the meltable insulating barrier of limit temperature of heating wire; be wound in the insulating protective layer formation that limit Wen Yi melts the screen layer of insulating barrier and covers screen layer; described screen layer single-end earthed; the melt temperature that described limit Wen Yi melts insulating barrier is 130～150 ℃, and the rectifier power input of described heating wire is serially connected with fuse.
The utility model can also be taked following technical measures:
Described rectifier is a bridge rectifier, the one input end halfwave rectifier diode that is connected in series.
Described rectifier is a bridge rectifier, its output is connected with the stepless temperature regulating circuit that is made of FET, the bridge rectifier output is connected in the FET source electrode and is connected to temperature-adjusting potentiometer over the ground, the temperature-adjusting potentiometer intermediate ends is connected in the control utmost point of FET, the control utmost point is connected to the clamp Zener diode over the ground, the drain electrode of FET is connected with filter condenser and high-frequency bypass capacitor, and drain electrode is connected in heating wire.
The beneficial effects of the utility model and advantage are; The rectifier power source of this electric blanket takes filtering to exchange the technical measures of clutter with bypass, and electric blanket is when the low-temperature working state of halfwave rectifier, and the amplitude of the ripple component of DC voltage obviously reduces, and the electromagnetic radiations emission on test electric blanket surface also significantly reduces.After this electric blanket adopts the five-layer structure heating wire, not only electromagnetic radiations emission can more thoroughly be eliminated, also has the safe self protective function when electric blanket overtemperature out-of-control condition, the warm meltable insulating barrier fusing of promptly local limit, screen layer and heating wire are joined and cause fuse blows, can guarantee the safe in utilization of electric blanket.The utlity model has and to keep the physiological equilibrium of human body in the earth's magnetic field, help sleep and healthy.
Description of drawings
Accompanying drawing 1 is an electric blanket example structure partial cutaway schematic.
Accompanying drawing 2 is heating wire wire schematic diagrames.
Number in the figure: 1 blanket tire, 2 heating wires, 2-1 heart yearn, 2-2 heating wire, 2-3 are limit warm meltable insulating barrier, 2-4 screen layer, 2-5 insulating protective layer, 3 magnetic masking layers, 4 covers, 5 temperature controllers.
The specific embodiment
Further specify the utility model below in conjunction with embodiment and accompanying drawing thereof.
Embodiment as shown in Figure 1, comprises that the temperature controller 5 and the power line thereof of rectifier are formed at the heating wire 2 that this radiation proof electric blanket is arranged by blanket tire 1, cover 4, revolution, and wherein blanket tire 1 is provided with the magnetic masking layer 3 of heating wire 2 each parallel-segment that cover the revolution arrangement.
As shown in Figure 2; the heating wire 2 that the revolution of Fig. 1 embodiment is arranged by resistant to elevated temperatures heart yearn 2-1, be wound in heart yearn heating wire 2-2, cover heating wire the meltable insulating barrier 2-3 of limit temperature, be wound in that limit Wen Yi melts the screen layer 2-4 of insulating barrier and the insulating protective layer 2-5 of covering screen layer constitutes; the single-ended connection protection of described screen layer 2-4 ground, the melt temperature that described limit Wen Yi melts insulating barrier is 130～150 ℃.The rectifier input of described heating wire is serially connected with fuse B.When the heating wire local temperature reaches 130～150 ℃, illustrate that the electric blanket overtemperature is out of control, this time limit Wen Yi melts the insulating barrier fusing, heating wire 2-2 and screen layer 2-4 short circuit, fuse B fuses immediately.The heating wire 2 that embodiment adopts is existing products.
Circuit embodiments 1 as shown in Figure 3, and the rectifier in the temperature controller 5 is the half-wave rectifier that the bridge rectifier that is made of commutation diode D1-4 and commutation diode D5 constitute, and commutation diode D5 is connected in the anode of bridge rectifier commutation diode D1.The bridge rectifier output is connected with filter condenser C1 and high-frequency bypass capacitor C2 over the ground.The temperature of K switch control electric blanket, be divided into low temperature, pass, high temperature three retainings, the bridge rectifier input that D1-4 constitutes during high temperature is connected with alternating current, and commutation diode D5 is series at the alternating current input during low temperature, and the commutating circuit of alternating current positive half period is D5 → D1 → heating wire → D4.The panel of temperature controller 5 also is provided with and powers up the i.e. neon bulb Z among the figure of indicator lamp, and neon bulb Z is provided with dropping resistor R.The rectifier input is serially connected with fuse B.
Claims (3)
1; the radiation proof electric blanket; by the blanket tire; cover; the heating wire that revolution is arranged; the temperature controller and the power line thereof that comprise rectifier are formed; wherein the blanket tire is provided with the magnetic masking layer that covers each parallel-segment of heating wire; it is characterized in that: described rectifier output end is connected with filter condenser and high-frequency bypass capacitor over the ground; the heating wire that described revolution is arranged is by high temperature resistant heart yearn; be wound in the heating wire of heart yearn; cover the meltable insulating barrier of limit temperature of heating wire; be wound in the insulating protective layer formation that limit Wen Yi melts the screen layer of insulating barrier and covers screen layer; described screen layer single-end earthed; the melt temperature that described limit Wen Yi melts insulating barrier is 130～150 ℃, and the rectifier power input of described heating wire is serially connected with fuse.
2, electric blanket according to claim 1 is characterized in that: described rectifier is a bridge rectifier, its input halfwave rectifier diode that is connected in series.
3, electric blanket according to claim 1, it is characterized in that: described rectifier is a bridge rectifier, its output is connected with the stepless temperature regulating circuit that is made of FET, the bridge rectifier output is connected in the FET source electrode and is connected to temperature-adjusting potentiometer over the ground, the temperature-adjusting potentiometer intermediate ends is connected in the control utmost point of FET, the control utmost point is connected to the clamp Zener diode over the ground, and the drain electrode of FET is connected with filter condenser and high-frequency bypass capacitor, and drain electrode is connected in heating wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200737253U CN201164279Y (en) | 2008-01-22 | 2008-01-22 | Radiation-resistant electric heating blanket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200737253U CN201164279Y (en) | 2008-01-22 | 2008-01-22 | Radiation-resistant electric heating blanket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201164279Y true CN201164279Y (en) | 2008-12-17 |
Family
ID=40189666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200737253U Expired - Fee Related CN201164279Y (en) | 2008-01-22 | 2008-01-22 | Radiation-resistant electric heating blanket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201164279Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173255A (en) * | 2011-01-25 | 2011-09-07 | 宁波高新区非昔电热技术有限公司 | Electric heating blackboard |
-
2008
- 2008-01-22 CN CNU2008200737253U patent/CN201164279Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173255A (en) * | 2011-01-25 | 2011-09-07 | 宁波高新区非昔电热技术有限公司 | Electric heating blackboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081217 Termination date: 20100222 |