CN109451603A - The full peace electric blanket of all-round hot Baoding effect - Google Patents
The full peace electric blanket of all-round hot Baoding effect Download PDFInfo
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- CN109451603A CN109451603A CN201811350129.XA CN201811350129A CN109451603A CN 109451603 A CN109451603 A CN 109451603A CN 201811350129 A CN201811350129 A CN 201811350129A CN 109451603 A CN109451603 A CN 109451603A
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- 230000008018 melting Effects 0.000 claims abstract description 7
- 239000003990 capacitor Substances 0.000 claims description 112
- 238000012546 transfer Methods 0.000 claims description 80
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- 230000005611 electricity Effects 0.000 claims description 43
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- 230000002457 bidirectional effect Effects 0.000 claims description 29
- 238000002955 isolation Methods 0.000 claims description 29
- 239000004677 Nylon Substances 0.000 claims description 24
- 238000001514 detection method Methods 0.000 claims description 24
- 229920001778 nylon Polymers 0.000 claims description 24
- 230000001568 sexual effect Effects 0.000 claims description 24
- 238000010257 thawing Methods 0.000 claims description 12
- 239000004065 semiconductor Substances 0.000 claims description 11
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- 239000012815 thermoplastic material Substances 0.000 claims description 11
- 239000004416 thermosoftening plastic Substances 0.000 claims description 11
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- 230000000087 stabilizing effect Effects 0.000 claims description 4
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- 238000013021 overheating Methods 0.000 abstract description 25
- 230000002159 abnormal effect Effects 0.000 abstract description 16
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000005485 electric heating Methods 0.000 description 17
- 230000007547 defect Effects 0.000 description 13
- 206010037660 Pyrexia Diseases 0.000 description 12
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/0252—Domestic applications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/0019—Circuit arrangements
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0202—Switches
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
- H05B3/342—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs heaters used in textiles
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/035—Electrical circuits used in resistive heating apparatus
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- Control Of Resistance Heating (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
Abstract
The present invention relates to the full peace electric blankets of all-round hot Baoding effect; the technical solution adopted is that: locking and disconnection protection circuit are first kept by energization as that all can pacify latching circuit entirely and provide the power supply of holding blocking, then control the AC power source of heating wire and disconnection protection circuit in turn by latching circuit control self-lock switch all can be pacified entirely；Heat touching line both ends are separately connected the input terminal V that all can pacify latching circuit entirelyi5And Vi6, recycle the separation layer between heat touching line and heating wire to lead to two line contact short circuits in rapid melting when the temperature is excessively high, allow alternating voltage triggering that all can pacify the conversion of latching circuit working condition entirely, overheating protection is made by G1 control self-lock switch power-off；It such as protects circuit abnormal failure that latching current is blocked necessarily self-lock switch to be caused to power off, all fronts overheating protection function is made to possess effect or never out of control forever, eliminate the false peace hidden danger of previous electric blanket, it is ensured that avoid fire.It can be seen that the present invention is a kind of full peace electric blanket of all-round hot Baoding effect.
Description
Technical field
The invention belongs to household electrical appliance or electric heating control fields, in particular to one kind is in using overall process either just
Under normal state or abnormality, heating wire all fronts overheating protection function is stablized effective (or never fail, is never out of control), comprehensive
Safety, authentic safe electric blanket, referred to as: the full peace electric blanket of all-round hot Baoding effect.Since electric blanket belongs to flexible electric heating body,
Therefore the present invention is also particularly suitable for the full peace controller as electric heating element.
Background technique
Electric blanket is the preferred warming appliance that bed is conveniently warmed up when it is cold, there is snugness to experience when not only people being allowed to sleep,
It is easy to fall asleep, and the infrared ray of its radiation and low frequency electromagnetic field act on there are also certain health-care physiotherapeutics and treat rheumatism effect to human body
Fruit；In addition, electric blanket is than other heating mode obvious energy conservations, and it is economical and practical, then it is favored by people.But early stage electric blanket skill
Art simply causes fire incident more because of localized hyperthermia, also brings security risk and threat to people.As it can be seen that the safety of electric blanket
Performance is more important than heating function.Therefore it is safety first that people, which select the requirement of electric blanket, and the higher the better for security performance,
More truer, better.So the highly safe of electric blanket also just becomes enforceable technical requirements in national standard.
Electric blanket technology is developed so far, and safe mass has been subjected to simple switch type, open loop temperature control from primary to advanced
Type, loop cooling control type, secure topical protection temperature control type, the developing stage such as full line safety protection temperature control type, electric heating temperature is from nothing
Control is controlled, from rough manual again to accurate automatic control, security performance also improves a lot, early to balance with foreign technology.Mesh
The special safety temperature control electric blanket of the full line of preceding mainstream in the market is all the electric blanket for meeting existing national technical standard, technology
Principle is: the two of the both ends of temperature-sensitive silk and two diodes with extreme in parallel, two diodes other two with it is extreme separately
The both ends of line with heating function each are attached to, this both ends is separately connected the two poles of the earth of AC power source, has and concatenates between one end and AC power source
Fuse, temperature-sensitive silk is wrapped on line with heating function surface insulation diaphragm, and when line with heating function hot-spot, insulation diaphragm can melt or carbon
Change, lead to line with heating function and the short circuit of temperature-sensitive silk, short circuit current passes through diode and fuse by temperature-sensitive silk, and fuse quick fuse is cut
Disconnected AC power source, protects electric blanket from line with heating function high temperature grilling.But if temperature-sensitive silk is to the series diode between fuse
And fracture defect occurs for connection line, fuse cannot cut off AC power source, and line with heating function continuous high temperature will ignite electric blanket.
As it can be seen that current the safe electric blanket also failure of generally existing overheating protection function or high temperature is out of control and causes the critical defect of fire
Or technical problem, it is all ignored to this, however, any electronic product all has certain life cycle, use process in reality
In be again that can inevitably be abnormal failure, because of malfunction and failure or out of control to become false safety also just unavoidable.Therefore especially
Safe electric blanket not yet fully and completely eliminates safe hidden trouble, and can only accomplish relatively high safety, cannot accomplish really safety or
Authentic security.
It improves and solves safe practice problem, thoroughly eliminate safe hidden trouble and defect, electric blanket is improved by " especially safe "
It is that supply side is promoted to improve and meet consumer to needed for safe high request and electric blanket to " comprehensive security, authentic safety "
The responsibility of manufacturing and the opportunity of innovation and development.Consumer Product Safety is also country's formulation or revision mandatory national standards must
The key element that need to be included in.So country is supported to be pushed national standard upgrading with advanced safe practice, leads industrial upgrading again.
Summary of the invention
Present invention aim to design one kind to have electric heating temperature adjustable and overheating protection, heating wire (silk) fracture
Flashing defencive function, and regardless of under normal and abnormality full line overheating protection function possess effect forever and (or never fail, forever
It is not out of control) comprehensive security, authentic safe controller for electric-heated blanket；Previous existing electric blanket high temperature in abnormal failure is solved to lose
Control causes the technical problem of fire incident, completely eliminates the security risk and defect of previous existing electric blanket.Or simply,
Present invention aim to provide a kind of full peace electric blanket of all-round hot Baoding effect.
In order to achieve the above objectives, above-mentioned technical problem is solved, technical solution used in the present invention: including heating wire (5), insurance
Manage (7), transfer switch (9), cooler (10), it is characterised in that: further include that all can pacify latching circuit (1), heat touching line entirely
(3), self-lock switch (6), energization keep locking and disconnection protection circuit (8)；Described all can pacify the upper defeated of latching circuit (1) entirely
Enter end (Vi5) connection heat touching line (3) head end (a), heat touches the connection of line (3) tail end (b) all can pacify the lower input of latching circuit (1) entirely
Hold (Vi6), a detection input (V of latching circuit (1) interior safety control module all can be pacified entirelyi2) external connection energization holding
Partial pressure protection point (V in locking and disconnection protection circuit (8)db)；Applied heat is logical between the heating wire (5) and heat touching line (3)
Sexual isolation layer or heat leak sexual isolation layer, such as common nylon melt thermoplastic material fastly and belong to hot general character insolated layer materials and had
The characteristic of hot fast thawing break-through short circuit, such as semiconductor nylon thermoplastic's material belong to heat leak sexual isolation layer material and have temperature higher
The bigger NTC characteristic of impedance more Low dark curient；The head end (A) of the heating wire (5) is connected to alternating current wires L3On, it is described
It is powered and two AC inputs of locking and disconnection protection circuit (8) is kept separately to be connected across alternating current wires L2And alternating current wires
L3Between, be powered the direct current power source voltage anode (V for keeping exporting in locking and disconnection protection circuit (8)+1) connect and all can pacify entirely
Latching circuit (1) DC power anode input terminal is powered and keeps ground terminal (GND) connection of locking and disconnection protection circuit (8)
The ground terminal (GND) of latching circuit (1) all can be pacified entirely；Locking and disconnection protection circuit (8) interior electromagnetic relay are kept with being powered
Normally opened contact connection self-lock switch (6) of Jb directly controls the on-off of AC power source, or keeps locking and broken string with being powered
Protect partial pressure protection point (V in circuit (8)db) connection control all can pacify one of latching circuit (1) interior safety control module inspection entirely
Survey input terminal (Vi2), then self-lock switch is indirectly controlled by electromagnetic force (G1) or light (G1) by latching circuit (1) all can be pacified entirely
(6), the on-off of AC power source is then controlled；The anode connection alternating current wires N of the cooler (10)1With heating wire (5)
Tail end (B) and transfer switch (9) the 1st gear of load-side, the cathode of cooler (10) connects alternating current wires N2With
The 2nd gear of load-side of transfer switch (9), the 3rd gear of load-side of the transfer switch (9) are vacant as disconnected
Electric gear connects ac power input end N after three gears of source side of transfer switch (9) are in parallel；It is described self-locking to open
The load-side for closing (6) is connected to alternating current wires L2On, the source side of self-lock switch (6) connects alternating current wires L1With protective tube (7)
The other end of one end, protective tube (7) connects ac power input end L.
As preferred embodiment 1, the latching circuit (1) that all can pacify entirely includes safety control module IC, resistance
It is sent out in 2R2,2R3,2R5, R6,2R7,2R12, capacitor 2C3 and diode D6,2D7,2D11,2D12 and solid-state relay SSR
Optical diode, the self-lock switch (6) include bidirectional triode thyristor in normally opened button CKA and solid-state relay SSR, and described is logical
Electricity keep locking and disconnection protection circuit (8) include diode 2D1 to 2D4,2D8, zener diode 2WD1 and capacitor 2C1,
2C2, resistance 2R9,2R10,2R11, attached hot line 2R8；Heat touching line (3) is exactly the heat touching line RC of outer layer, and heating wire (5) is just
It is the heating wire WR of internal layer, adapts to hot general character separation layer or heat leak between the heating wire WR of internal layer and the heat touching line RC of outer layer
Separation layer, such as common nylon melt thermoplastic material fastly and belong to the spy that hot general character insolated layer materials have overheat fast thawing break-through short circuit
Property, for example, semiconductor nylon thermoplastic's material belong to heat leak sexual isolation layer material with temperature more high impedance more Low dark curient it is bigger
NTC characteristic；The protective tube (7) is exactly the protective tube BX manufactured with the fusible link of anti-short circuit current, the power supply conversion
Switching (9) is exactly transfer switch DWK；The cooler (10) is exactly diode 2D10；Circuit connecting mode: described
A detection input (V of safety control module ICi1) it is connected to diode 2D7 anode and the one end resistance 2R2, resistance 2R2 is another
DC power anode input terminal (the V of one end connection safety control module IC+) as the direct current that all can pacify latching circuit (1) entirely
Source electrode input end reconnects diode 2D8 cathode and zener diode 2WD1 cathode and capacitor 2C1 anode；Diode 2D7 is negative
Pole simultaneously connects two cathode of diode 2D11,2D12 and each one end resistance 2R5,2R12, capacitor 2C3 as all can pacify latching circuit entirely
(1) temperature-sensitive input terminal (Vi3)；The capacitor 2C3 other end connects the one end resistance 2R3, and it is another that diode 2D11 anode connects resistance 2R5
One end is as the upper input terminal (V that all can pacify latching circuit (1) entirelyi5) reconnect the head end (a) that heat touches line RC, heat touching line RC tail end
(b) connection one end resistance 2R7 is as the lower input terminal (V that all can pacify latching circuit (1) entirelyi6) again and connect diode 2D12 anode and
The other end of resistance 2R12；The DC power supply of the other end and safety control module IC that the resistance 2R7 other end connects resistance 2R3 is born
Pole input terminal (V-) as the ground terminal (GND) that all can pacify latching circuit (1) entirely, reconnect zener diode 2WD1 anode, electricity
Hold 2C1,2C2 cathode, one end of diode 2D2,2D3 anode and resistance 2R11, the one end attached hot line 2R8 and tie-point, this is simultaneously
Tie-point keeps the ground terminal (GND) of locking and disconnection protection circuit (8) as being powered；Capacitor 2C1 anode and zener diode
2WD1 cathode connects diode 2D8 cathode as the direct current power source voltage for keeping locking and disconnection protection circuit (8) output that is powered
Anode (V+1) connection safety control module IC DC supply input positive terminal (V+)；Diode 2D8 anode connects resistance 2R9 mono-
End, the resistance 2R9 other end connect 2D1,2D4 cathode, capacitor 2C2 anode and the one end resistance 2R10 and the attached hot line 2R8 other end
Locking and the interior direct current power source voltage anode (V of disconnection protection circuit (8) are kept as being powered+3)；The resistance 2R10 other end and resistance
The concatenation point of the 2R11 other end keeps partial pressure protection point (V in locking and disconnection protection circuit (8) as being powereddb) connection is described
Another detection input (V of safety control module ICi2)；Diode 2D1 cathode connecting diode 2D2 cathode is protected as being powered
An AC input for holding locking and disconnection protection circuit (8) reconnects alternating current wires L2The normally opened button CKA of upper mounting
Load-side 2. with one end of bidirectional triode thyristor in solid-state relay SSR (the 10th foot), the normally opened button CKA source side 1. and
The other end (the 8th foot) of bidirectional triode thyristor connects alternating current wires L in solid-state relay SSR1With one end of protective tube BX, protective tube
The other end of BX connects ac power input end (L)；Diode 2D4 cathode connecting diode 2D3 cathode keeps closing as being powered
Another AC input of lock and disconnection protection circuit (8) connects alternating current wires L3With heating wire WR head end (A), heating wire
WR tail end (B) connects alternating current wires N1With the 1st gear of load-side of diode 2D10 anode and transfer switch DWK, power supply
The 2nd gear of load-side of change-over switch DWK connects alternating current wires N2With diode 2D10 cathode, transfer switch DWK's is negative
It is vacant as power-off gear to carry the 3rd gear of side, connects AC power source after three gears of source side of transfer switch DWK are in parallel
Input terminal (N)；In-phase output end (the V of the safety control module ICo1) connection diode D6 cathode, diode D6 anode company
The one end connecting resistance R6, the resistance R6 other end connect light emitting diode cathode (the 1st foot) in solid-state relay SSR, solid-state relay
Reversed-phase output (the V of light emitting diode anode (the 16th foot) connection safety control module IC in SSRo2)。
As preferred embodiment 2, the latching circuit (1) that all can pacify entirely includes safety control module IC, resistance
3R2,3R5,3R12,3R7, capacitor 3C3 and diode D5, D6,3D7, zener diode 3WD2,3WD3 and electromagnetic relay J
Coil, the self-lock switch (6) include normally opened button CKA and electromagnetic relay Jb normally opened contact and electromagnetic relay J normal
Contact is opened, the energization keeps locking and disconnection protection circuit (8) includes diode 3D1 to 3D4,3D9, zener diode
3WD1 and capacitor 3C1,3C2, resistance 3R9, attached hot line 3R8 and electromagnetic relay Jb coil；Heat touching line (3) is exactly outer
The heat touching line RC of layer, heating wire (5) are exactly the heating wire WR of internal layer, are fitted between the heating wire WR of internal layer and the heat touching line RC of outer layer
Hot general character separation layer or heat leak sexual isolation layer, such as common nylon is answered to melt thermoplastic material fastly and belong to hot general character insolated layer materials
Characteristic with overheat fast thawing break-through short circuit, such as semiconductor nylon thermoplastic's material belong to heat leak sexual isolation layer material with temperature
The degree more bigger NTC characteristic of high impedance more Low dark curient；The protective tube (7) is exactly to be manufactured with the fusible link of anti-short circuit current
Protective tube BX, the transfer switch (9) are exactly the transfer switch DWK there are three gear, the cooler
It (10) is exactly diode 3D10；Circuit connecting mode: the two detection input (V of the safety control module ICi1、Vi2) simultaneously
It connects in diode 3D7 anode and the one end resistance 3R2, the resistance 3R2 other end connects the DC power anode of safety control module IC
Input terminal (V+) as the DC supply input positive terminal that all can pacify latching circuit (1) entirely, reconnect one end and the electricity of resistance 3R9
Hold 3C1 anode, zener diode 3WD1 cathode；Diode 3D7 cathode connects two cathode of zener diode 3WD2,3WD3 and capacitor
The one end 3C3 is as the temperature-sensitive input terminal (V that all can pacify latching circuit (1) entirelyi3)；Zener diode 3WD2 anode connects resistance 3R5
One end, the other end of resistance 3R5 is as the upper input terminal (V that all can pacify latching circuit (1) entirelyi5) reconnect the head end that heat touches line RC
(a), heat touching line RC tail end (b) connection one end resistance 3R12 and the one end resistance 3R7 are defeated under latching circuit (1) as that all can pacify entirely
Enter end (Vi6)；The resistance 3R12 other end connects zener diode 3WD3 anode；The other end of resistance 3R7 and connect diode 3D2,
The anode of 3D3, zener diode 3WD1 anode and capacitor 3C1,3C2 cathode, the other end of capacitor 3C3, the one end attached hot line 3R8 with
And the DC power cathode input terminal (V of safety control module IC-) as the ground terminal (GND) that all can pacify latching circuit (1) entirely
With the ground terminal (GND) for keeping locking and disconnection protection circuit (8) that is powered；Capacitor 3C1 anode and zener diode 3WD1 cathode
The one end resistance 3R9 is connected as the direct current power source voltage anode (V for keeping locking and disconnection protection circuit (8) output that is powered+1) even
Meet the DC power anode input terminal (V of safety control module IC+)；The resistance 3R9 other end connects electromagnetic relay Jb coil one
End and diode 3D9,3D1,3D4 cathode and capacitor 3C2 anode are as holding locking and disconnection protection circuit (8) the interior direct current of being powered
Supply voltage anode (V+3), the electromagnetic relay Jb coil other end connects diode 3D9 anode and the attached hot line 3R8 other end；Two
Pole pipe 3D1 cathode connecting diode 3D2 cathode is as the alternating current input for keeping locking and disconnection protection circuit (8) that is powered
End reconnects alternating current wires L2The normally opened button CKA load-side of upper mounting and the stationary contact of electromagnetic relay Jb normally opened contact, electricity
The movable contact of the movable contact connection electromagnetic relay J normally opened contact of magnetic relay Jb normally opened contact；The normally opened button CKA electricity
The stationary contact of source and electromagnetic relay J normally opened contact is through alternating current wires L1One end of protective tube BX is connected, protective tube BX's is another
One end connects ac power input end (L)；Diode 3D4 cathode connecting diode 3D3 cathode keeps being latched and break as being powered
Line protects another AC input of circuit (8) to connect alternating current wires L3With heating wire WR head end (A), heating wire WR tail end
(B) alternating current wires N is connected1With the 1st gear of load-side of diode 3D10 anode and transfer switch DWK, power supply conversion is opened
The 2nd gear of load-side for closing DWK connects alternating current wires N2With diode 3D10 cathode, the load-side the 3rd of transfer switch DWK
Gear is vacant as power-off gear, connects ac power input end after three gears of source side of transfer switch DWK are in parallel
(N)；In-phase output end (the V of the safety control module ICo1) connection diode D6 cathode, diode D6 anode and diode
D5 anode is connected to electromagnetic relay J coil one end, and the electromagnetic relay J coil other end connects diode D5 cathode and safety control
Reversed-phase output (the V of molding block ICo2)。
As preferred embodiment 3, the latching circuit (1) that all can pacify entirely includes resistance 4R5,4R7,4R12, capacitor
4C3 and diode D5,4D7, zener diode 4WD2,4WD3 and electromagnetic relay J coil, or with solid-state relay SSR
Middle light emitting diode series resistor R6 replacement electromagnetic relay J coil and diode D5；The self-lock switch (6) includes normally opened
Button CKA and electromagnetic relay Jb normally opened contact and electromagnetic relay J normally opened contact, or with two-way in solid-state relay SSR
Silicon-controlled replacement electromagnetic relay J normally opened contact；The energization keeps locking and disconnection protection circuit (8) includes diode
4D1 to 4D4,4D9, zener diode 4WD1 and capacitor 4C1,4C2, resistance 4R9, attached hot line 4R8 and electromagnetic relay Jb line
Circle；Heat touching line (3) is exactly the heat touching line RC of outer layer, and heating wire (5) is exactly the heating wire WR of internal layer, the heating wire of internal layer
Hot general character separation layer or heat leak sexual isolation layer are adapted between WR and the heat touching line RC of outer layer, such as common nylon melts thermoplasticity fastly
Material belongs to the characteristic that hot general character insolated layer materials have overheat fast thawing break-through short circuit, such as semiconductor nylon thermoplastic's material category
In the NTC characteristic that heat leak sexual isolation layer material has temperature more high impedance more Low dark curient bigger；The protective tube (7) is exactly to use
The protective tube BX of the fusible link manufacture of anti-short circuit current, the transfer switch (9) are exactly that there are three the power supplys of gear to turn
Change switch DWK；The cooler (10) is exactly diode 4D10；Circuit connecting mode: the electromagnetic relay J coil
One end connects diode D5 cathode as the DC power anode input terminal that all can pacify latching circuit (1) entirely, electromagnetic relay J line
Other end connection diode D5,4D7 anode of circle, diode 4D7 cathode simultaneously connect two cathode of zener diode 4WD2,4WD3 and electricity
Hold the one end 4C3 as the temperature-sensitive input terminal (V that all can pacify latching circuit (1) entirelyi3)；Zener diode 4WD2 anode connects resistance
The one end 4R5, the resistance 4R5 other end is as the upper input terminal (V that all can pacify latching circuit (1) entirelyi5) the hot head end for touching line RC of connection
(a), one end of one end connection resistance 4R7 of resistance 4R12 is as the lower input terminal (V that all can pacify latching circuit (1) entirelyi6) connect again
Connect the tail end (b) of heat touching line RC, the other end connection zener diode 4WD3 anode of resistance 4R12；The other end of resistance 4R7 is simultaneously
Connect the anode of zener diode 4WD1, the other end of capacitor 4C3, capacitor 4C1,4C2 cathode, the one end attached hot line 4R8 and diode
The anode of 4D2,4D3 are as the ground terminal (GND) that all can pacify latching circuit (1) entirely and be powered holding locking and disconnection protection circuit
(8) ground terminal (GND)；Capacitor 4C1 anode connects the one end resistance 4R9 with zener diode 4WD1 cathode and keeps closing as being powered
Lock and the direct current power source voltage anode (V of disconnection protection circuit (8) output+1) reconnect the direct current that all can pacify latching circuit (1) entirely
Power supply positive input；The resistance 4R9 other end connect electromagnetic relay Jb coil one end and diode 4D9,4D1,4D4 cathode with
And capacitor 4C2 anode keeps locking and the interior direct current power source voltage anode (V of disconnection protection circuit (8) as being powered+3), electromagnetism relay
The device Jb coil other end connects the attached hot line 4R8 other end and diode 4D9 anode；Diode 4D1 cathode connecting diode 4D2 is negative
Pole reconnects alternating current wires L as the AC input for keeping locking and disconnection protection circuit (8) that is powered2Upper mounting
The stationary contact of normally opened button CKA load-side and electromagnetic relay Jb normally opened contact, the movable contact of electromagnetic relay Jb normally opened contact
Connect the movable contact of electromagnetic relay J normally opened contact, the normally opened button CKA source side and electromagnetic relay J normally opened contact
Stationary contact connect alternating current wires L1Ac power input end (L) is connected with the other end of one end of protective tube BX, protective tube BX；
Diode 4D4 cathode connecting diode 4D3 cathode keeps another alternating current of locking and disconnection protection circuit (8) as being powered
Input terminal connects alternating current wires L3Alternating current wires N is connected with the tail end (B) of the head end (A) of heating wire WR, heating wire WR1With two poles
The 2nd gear of load-side of the 1st gear of load-side of pipe 4D10 anode and transfer switch DWK, transfer switch DWK connects
Meet alternating current wires N1With diode 4D10 cathode, the 3rd gear of load-side of transfer switch DWK is vacant to be used as power-off gear,
Ac power input end (N) is connected after three gears of source side of transfer switch DWK are in parallel；Or use solid-state relay
SSR replace electromagnetic relay J, by solid-state relay SSR light emitting diode anode (the 16th foot) connection be powered keep locking and
Direct current power source voltage anode (the V of disconnection protection circuit (8) output+1), light emitting diode cathode the (the 1st in solid-state relay SSR
Foot) connection resistance R6, the resistance R6 other end connects 4D7 anode, then by one end of bidirectional triode thyristor in solid-state relay SSR (the
10 feet) connection alternating current wires L1It is two-way in solid-state relay SSR with the source side of normally opened button CKA and one end of protective tube BX
The movable contact of the silicon-controlled other end (the 8th foot) connection electromagnetic relay Jb normally opened contact.
The basic function principle of technical solution used in the present invention is as follows:
Normal heating principle: when needing electric blanket investment fever work, AC power source input both ends (L, N) in Fig. 1
After inputting suitable AC power source, transfer switch (9) is first placed in the 1st grade, then clicks (or starting) self-lock switch
(6) the normally opened button in allows heating wire (5) to be latched with the holding that is powered and disconnection protection circuit (8) connects the AC power source inputted,
It is powered and locking and disconnection protection circuit (8) is kept to provide direct current power source voltage V for latching circuit (1) all can be pacified entirely+1, power on it
Just, heating wire (5) makes heat touching line (3) institute temperature-sensitive degree lower, because separation layer is in state of insulation, therefore all can pacify latching circuit entirely
(1) upper input terminal (Vi5) and lower input terminal (Vi6) DC potential be below its bottom boundary potential, make that latching circuit all can be pacified entirely
(1) AC power source is connected in electromagnetic force or light intensity (G1) control self-lock switch (6) of output end, and making to be powered keeps locking and broken string to protect
Protection circuit (8) and latching circuit (1) all can be pacified entirely and heating wire (5) is continuously maintained at locking energized state, heating wire (5) is held
Continuous heating power needs electric blanket temperature adjusting the temperature to feel comfortable to human body if the heat and temperature drift of electric blanket
Transfer switch (9) need to be turned by the 1st grade to the 2nd grade, cooler (10) is allowed to devote oneself to work by range, at this point, can only be positive
It is powered, reversely ends and cannot be powered, electrical power reduces half in heating wire (5), and the temperature of electric blanket will reduce very much.To
Electric blanket stops fever, and transfer switch (9) is placed in the 3rd grade, has just been fully disconnected alternating current, be powered keep locking and
It disconnection protection circuit (8) and latching circuit (1) all can be pacified entirely just loses maintenance electric current completely, self-lock switch (6) is turned off
The unlocking condition of power supply, if latching circuit all can be pacified entirely at this point, transfer switch (9) is placed in the 1st grade or the 2nd grade again
(1) still self-lock switch (6) is self-locking in the unlocking condition of power-off by power loss always.If thinking, electric blanket is once again powered up fever, needs
The normally opened button in self-lock switch (6) is pressed again, and latching circuit (1) all can be pacified entirely by, which allowing, is again locked in self-lock switch (6)
Persistently it is latched energized state.
Overheating protection principle: when in electric blanket heating wire (5) overheat, temperature rise be higher than normal range (NR), cause heat touching line (3) and
Between heating wire (5) (at such as its head end A-a or at tail end B-b or intermediate somewhere) insolated layer materials impedance become smaller (electric leakage compared with
Greatly) or rapid melting break-through short circuit, it allows in heating wire (5) alternating voltage to touch line (3) by heat and is directly entered all-round full An Zisuo
Upper input terminal (the V of circuit (1)i5) and lower input terminal (Vi6), as upper input terminal (Vi5) and lower input terminal (Vi6) resulting alternating current
Be pressed in polarity be positive A → a or B → b when, to capacitor fast charging, make temperature-sensitive by latching circuit (1) interior diode all can be pacified entirely
Input terminal potential rapid increase；Because of the reverse isolation of diode, as upper input terminal (Vi5) and lower input terminal (Vi6) resulting exchange
Voltage all can pacify latching circuit (1) charged position of interior capacitor entirely and need by reversed high resistant when polarity is negative a → A or b → B
Anti- slowly electric discharge reduces, and capacitor current potential is then just made to keep locking and disconnection protection circuit (8) is all-round complete close to being powered always
Pacify the direct current power source voltage (V that latching circuit (1) provides+1), triggering all can pacify the shape of latching circuit (1) interior safety control module entirely
State overturning, control self-lock switch (6) are turned off the unlocking condition of AC power source, are powered and keep locking and disconnection protection circuit
(8) it and latching circuit (1) all can be pacified entirely just loses maintenance electric current completely, self-lock switch (6) is self-locking in the unlocking of power-off always
State, heating wire (5) cannot be powered always.Then, it is achieved that the overheating protection to electric blanket.
Never failure factors: the AC power source needed for normally generating heat because of electric blanket needs to keep locking and disconnected by being powered
Line protection circuit (8) is that all can pacify latching circuit (1) entirely to provide direct current power source voltage V+1, make that latching circuit (1) all can be pacified entirely defeated
Electromagnetic force or light intensity (G1) control self-lock switch (6) of outlet are persistently latched in energized state, could maintain to connect AC power source.
Latching circuit (1), energization holding locking and disconnection protection circuit (8) and self-lock switch (6) all can be pacified when heat touching line (3) and entirely
Etc. in all links, be such as abnormal open circuit or certain short trouble, destroy self-lock switch (6) by electric current maintain locking from
Bolt part powers off with regard to auto-unlocking, feeds back, and self-lock switch (6) is self-locking in the unlocking condition of power-off always through power loss, make electricity
Hot blanket protects circuit abnormal open circuit or short trouble still not out of control in overheat, and overheating protection function never fails, complete
It totally disappeared the security risk and defect in addition to electric blanket.Then, it is achieved that and provides a kind of full peace of all-round hot Baoding effect for user
The hope of electric blanket.
Breaking protection principle: when heating wire (silk) fracture occurs for the internal somewhere of heating wire (5), locking is kept due to being powered
And the interior capacitor institute's reserve of electricity electric discharge of disconnection protection circuit (8) needs certain time, therefore, all can pacify latching circuit (1) and oneself entirely
Lock-switch (6) will also postpone just to cut off AC power source for a period of time after electric heating thread breakage.Locking and broken string are kept as long as being powered
It protects the discharge time of circuit (8) interior capacitor more than the reversed cut-off power-off time of cooler (5), does not just influence heating wire (5)
Normal table heating power.If heating wire (5) rupture time is more than to be powered to keeping locking and disconnection protection circuit (8) interior capacitor
Discharge time, then all can pacify full latching circuit (1) cause self-lock switch (6) delay cutting AC power source after, fed back through power loss, just
Self-lock switch (6) can be self-locking in always to the unlocking condition of power-off.The technical measures be in order to prevent heating wire (silk) fracture after
It flashing (arcing) overlong time hot-spot and then ignites and fabric of electric heat blanket or directly causes fire, jeopardize personal property peace
Entirely.As it can be seen that the present invention can ensure that breaking protection function is constant effectively, thoroughly reliably eliminates the security risk of electric blanket and lack
It falls into, thus the present invention is a kind of full peace electric blanket of all-round hot Baoding effect.
Beneficial effects of the present invention and technical advantage:
Controller for electric-heated blanket is allowed not only to can be carried out overheating protection control in normal work, prevent heating wire (silk) fracture from dodging
Arc (arcing) ignites fabric of electric heat blanket, disconnects AC power source, avoids that fire incident occurs, and in overheating protection control circuit sheet
It is still not out of control when body is abnormal failure or after heating wire (silk) fracture, it still can effectively and reliably carry out overheating protection control
System guarantees to disconnect AC power source, authentic always can ensure personal safety as well as the property safety.The present invention can also be used as the complete of other electric heating elements
Pacify controller.
In other words, the present invention thoroughly solve previous electric blanket cannot anti-abnormal failure technical problem out of control, disappear completely
In addition to previous electric blanket has the hidden danger and defect of false peace, perfection realizes the full line under various normal or abnormal states and overheats
Protection control function never fails or life cycle management is never out of control, can really ensure personal safety as well as the property safety always.As it can be seen that this
Invention is a kind of all-round full peace electric blanket of hot Baoding effect, and all fronts are never failed the authentic safe superior of (or never out of control)
Performance and control principle have wider versatility, can be applied to institute's technology in need to electric heating element progress security control
Field.Present invention ensure that the security of the lives and property of users, is also beneficial to public safety certainly, there is important practical value
And social benefit, promise to be the national compulsory technical standard revision upgrading of electric blanket field and safety electric control field
The necessary patent of Shi Suoxu also has any opportunity for China in the national standard in electric blanket field and safety electric control field and leads state
Border standard upgrade.
Detailed description of the invention
Fig. 1 is energy mount structure figure of the invention；
Fig. 2 is 1 circuit diagram of specific embodiments of the present invention；
Fig. 3 is 2 circuit diagram of specific embodiments of the present invention；
Fig. 4 is 3 circuit diagram of specific embodiments of the present invention.
In Fig. 1: (1) for latching circuit all can be pacified entirely, (3) be heat touch line, (5) be heating wire, (6) be self-lock switch,
It (7) is protective tube, (8) are energization holding locking and disconnection protection circuit, (9) are transfer switch, (10) are cooler.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing technical scheme of the present invention will be further explained in detail.
One, energy mount structure is illustrated:
Energy mount structure figure of the invention, as shown in Figure 1, wherein (1) be all can pacify latching circuit entirely, (3) be heat touch line,
(5) be heating wire, (6) be self-lock switch, (7) are protective tube, (8) are to be powered to keeping locking and disconnection protection circuit, (9) they be electric
Source changeover switch, (10) are cooler；Upper input terminal (the V that latching circuit (1) all can be pacified entirelyi5) connection heat touching line (3)
Head end (a), heat touching line (3) tail end (b) connection all can pacify the lower input terminal (V of latching circuit (1) entirelyi6), self-locking electricity all can be pacified entirely
One detection input (V of road (1) interior safety control modulei2) external connection energization holding is latched and disconnection protection circuit (8)
Interior partial pressure protects point (Vdb)；Applied heat general character separation layer or heat leak sexual isolation between the heating wire (5) and heat touching line (3)
Layer, such as common nylon melt thermoplastic material fastly and belong to the characteristic that hot general character insolated layer materials have overheat fast thawing break-through short circuit,
Such as semiconductor nylon thermoplastic's material belongs to heat leak sexual isolation layer material with the temperature more bigger NTC of high impedance more Low dark curient
Characteristic；The head end (A) of the heating wire (5) is connected to alternating current wires L3On, the energization keeps locking and broken string to protect
Two AC inputs of protection circuit (8) are separately connected across alternating current wires L2With alternating current wires L3Between, be powered keep locking and
Direct current power source voltage anode (the V exported in disconnection protection circuit (8)+1) connection all can pacify latching circuit (1) DC power supply entirely just
Pole input terminal is powered and keeps ground terminal (GND) connection of locking and disconnection protection circuit (8) that all can pacify latching circuit (1) entirely
Ground terminal (GND)；With being powered, the normally opened contact for keeping locking and the interior electromagnetic relay Jb of disconnection protection circuit (8) connects self-locking open
The on-off that (6) directly control AC power source is closed, or keeps partial pressure protection point in locking and disconnection protection circuit (8) with being powered
(Vdb) connect a detection input (V for controlling and all can pacifying latching circuit (1) interior safety control module entirelyi2), then by all-round complete
Peace latching circuit (1) indirectly controls self-lock switch (6) by electromagnetic force (G1) or light (G1), then controls the logical of AC power source
Or it is disconnected；The anode connection alternating current wires N of the cooler (10)1With the tail end (B) and transfer switch of heating wire (5)
(9) cathode of the 1st gear of load-side, cooler (10) connects alternating current wires N2With the load-side the 2nd of transfer switch (9)
Gear, the 3rd gear of load-side of the transfer switch (9) are vacant as power-off gear, the electricity of transfer switch (9)
Ac power input end N is connected after three gears of source are in parallel；The load-side of the self-lock switch (6) is connected to alternating current wires
L2On, the source side of self-lock switch (6) connects alternating current wires L1It is connected with the other end of one end of protective tube (7), protective tube (7)
Ac power input end L.
The basic function principle of Fig. 1 is as follows:
Normal heating principle: when needing electric blanket investment fever work, AC power source input both ends (L, N) in Fig. 1
After inputting suitable AC power source, transfer switch (9) is first placed in the 1st grade, then clicks (or starting) self-lock switch
(6) the normally opened button in allows heating wire (5) to be latched with the holding that is powered and disconnection protection circuit (8) connects the AC power source inputted,
It is powered and locking and disconnection protection circuit (8) is kept to provide direct current power source voltage V for latching circuit (1) all can be pacified entirely+1, power on it
Just, heating wire (5) makes heat touching line (3) institute temperature-sensitive degree lower, because separation layer is in state of insulation, therefore all can pacify latching circuit entirely
(1) upper input terminal (Vi5) and lower input terminal (Vi6) DC potential be below its bottom boundary potential, make that latching circuit all can be pacified entirely
(1) AC power source is connected in electromagnetic force or light intensity (G1) control self-lock switch (6) of output end, and making to be powered keeps locking and broken string to protect
Protection circuit (8) and latching circuit (1) all can be pacified entirely and heating wire (5) is continuously maintained at locking energized state, heating wire (5) is held
Continuous heating power needs electric blanket temperature adjusting the temperature to feel comfortable to human body if the heat and temperature drift of electric blanket
Transfer switch (9) need to be turned by the 1st grade to the 2nd grade, cooler (10) is allowed to devote oneself to work by range, at this point, can only be positive
It is powered, reversely ends and cannot be powered, electrical power reduces half in heating wire (5), and the temperature of electric blanket will reduce very much.To
Electric blanket stops fever, and transfer switch (9) is placed in the 3rd grade, has just been fully disconnected alternating current, be powered keep locking and
It disconnection protection circuit (8) and latching circuit (1) all can be pacified entirely just loses maintenance electric current completely, self-lock switch (6) is turned off
The unlocking condition of power supply, if latching circuit all can be pacified entirely at this point, transfer switch (9) is placed in the 1st grade or the 2nd grade again
(1) still self-lock switch (6) is self-locking in the unlocking condition of power-off by power loss always.If thinking, electric blanket is once again powered up fever, needs
The normally opened button in self-lock switch (6) is pressed again, and latching circuit (1) all can be pacified entirely by, which allowing, is again locked in self-lock switch (6)
Persistently it is latched energized state.
Overheating protection principle: when in electric blanket heating wire (5) overheat, temperature rise be higher than normal range (NR), cause heat touching line (3) and
Between heating wire (5) (at such as its head end A-a or at tail end B-b or intermediate somewhere) insolated layer materials impedance become smaller (electric leakage compared with
Greatly) or rapid melting break-through short circuit, it allows in heating wire (5) alternating voltage to touch line (3) by heat and is directly entered all-round full An Zisuo
Upper input terminal (the V of circuit (1)i5) and lower input terminal (Vi6), as upper input terminal (Vi5) and lower input terminal (Vi6) resulting alternating current
Be pressed in polarity be positive A → a or B → b when, to capacitor fast charging, make temperature-sensitive by latching circuit (1) interior diode all can be pacified entirely
Input terminal potential rapid increase；Because of the reverse isolation of diode, as upper input terminal (Vi5) and lower input terminal (Vi6) resulting exchange
Voltage all can pacify latching circuit (1) charged position of interior capacitor entirely and need by reversed high resistant when polarity is negative a → A or b → B
Anti- slowly electric discharge reduces, and capacitor current potential is then just made to keep locking and disconnection protection circuit (8) is all-round complete close to being powered always
Pacify the direct current power source voltage (V that latching circuit (1) provides+1), triggering all can pacify the shape of latching circuit (1) interior safety control module entirely
State overturning, control self-lock switch (6) are turned off the unlocking condition of AC power source, are powered and keep locking and disconnection protection circuit
(8) it and latching circuit (1) all can be pacified entirely just loses maintenance electric current completely, self-lock switch (6) is self-locking in the unlocking of power-off always
State, heating wire (5) cannot be powered always.Then, it is achieved that the overheating protection to electric blanket.
Never failure factors: the AC power source needed for normally generating heat because of electric blanket needs to keep locking and disconnected by being powered
Line protection circuit (8) is that all can pacify latching circuit (1) entirely to provide direct current power source voltage V+1, make that latching circuit (1) all can be pacified entirely defeated
Electromagnetic force or light intensity (G1) control self-lock switch (6) of outlet are persistently latched in energized state, could maintain to connect AC power source.
Latching circuit (1), energization holding locking and disconnection protection circuit (8) and self-lock switch (6) all can be pacified when heat touching line (3) and entirely
Etc. in all links, be such as abnormal open circuit or certain short trouble, destroy self-lock switch (6) by electric current maintain locking from
Bolt part powers off with regard to auto-unlocking, feeds back, and self-lock switch (6) is self-locking in the unlocking condition of power-off always through power loss, make electricity
Hot blanket protects circuit abnormal open circuit or short trouble still not out of control in overheat, and overheating protection function never fails, complete
It totally disappeared the security risk and defect in addition to electric blanket.Then, it is achieved that and provides a kind of full peace of all-round hot Baoding effect for user
The hope of electric blanket.
Breaking protection principle: when heating wire (silk) fracture occurs for the internal somewhere of heating wire (5), locking is kept due to being powered
And the interior capacitor institute's reserve of electricity electric discharge of disconnection protection circuit (8) needs certain time, therefore, all can pacify latching circuit (1) and oneself entirely
Lock-switch (6) will also postpone just to cut off AC power source for a period of time after electric heating thread breakage.Locking and broken string are kept as long as being powered
It protects the discharge time of circuit (8) interior capacitor more than the reversed cut-off power-off time of cooler (5), does not just influence heating wire (5)
Normal table heating power.If heating wire (5) rupture time is more than to be powered to keeping locking and disconnection protection circuit (8) interior capacitor
Discharge time, then all can pacify full latching circuit (1) cause self-lock switch (6) delay cutting AC power source after, fed back through power loss, just
Self-lock switch (6) can be self-locking in always to the unlocking condition of power-off.The technical measures be in order to prevent heating wire (silk) fracture after
It flashing (arcing) overlong time hot-spot and then ignites and fabric of electric heat blanket or directly causes fire, jeopardize personal property peace
Entirely.As it can be seen that the present invention can ensure that breaking protection function is constant effectively, thoroughly reliably eliminates the security risk of electric blanket and lack
It falls into, thus the present invention is a kind of full peace electric blanket of all-round hot Baoding effect.
Two, illustrating to embodiment 1:
Currently preferred 1 circuit diagram of specific embodiment, as shown in Fig. 2, described all can pacify latching circuit (1) entirely
Including safety control module IC, resistance 2R2,2R3,2R5, R6,2R7,2R12, capacitor 2C3 and diode D6,2D7,2D11,
Light emitting diode in 2D12 and solid-state relay SSR, the self-lock switch (6) include normally opened button CKA and solid-state relay
Bidirectional triode thyristor in device SSR, the energization keep locking and disconnection protection circuit (8) include diode 2D1 to 2D4,2D8,
Zener diode 2WD1 and capacitor 2C1,2C2, resistance 2R9,2R10,2R11, attached hot line 2R8；Heat touching line (3) is exactly outer
The heat touching line RC of layer, heating wire (5) are exactly the heating wire WR of internal layer, are fitted between the heating wire WR of internal layer and the heat touching line RC of outer layer
Hot general character separation layer or heat leak sexual isolation layer, such as common nylon is answered to melt thermoplastic material fastly and belong to hot general character insolated layer materials
Characteristic with overheat fast thawing break-through short circuit, such as semiconductor nylon thermoplastic's material belong to heat leak sexual isolation layer material with temperature
The degree more bigger NTC characteristic of high impedance more Low dark curient；The protective tube (7) is exactly to be manufactured with the fusible link of anti-short circuit current
Protective tube BX, the transfer switch (9) are exactly transfer switch DWK；The cooler (10) is exactly diode
2D10；Circuit connecting mode: a detection input (V of the safety control module ICi1) it is connected to diode 2D7 anode
With the one end resistance 2R2, the resistance 2R2 other end connects the DC power anode input terminal (V of safety control module IC+) as all-round
The DC power anode input terminal of full peace latching circuit (1), reconnect diode 2D8 cathode and zener diode 2WD1 cathode and
Capacitor 2C1 anode；Diode 2D7 cathode simultaneously connects two cathode of diode 2D11,2D12 and resistance 2R5,2R12, capacitor 2C3 each one
End is as the temperature-sensitive input terminal (V that all can pacify latching circuit (1) entirelyi3)；The capacitor 2C3 other end connects the one end resistance 2R3, diode
2D11 anode connects the resistance 2R5 other end as the upper input terminal (V that all can pacify latching circuit (1) entirelyi5) reconnect heat touching line RC
Head end (a), heat touching line RC tail end (b) connection the one end resistance 2R7 as the lower input terminal (V that all can pacify latching circuit (1) entirelyi6)
Again and connect the other end of diode 2D12 anode and resistance 2R12；The other end and safety of resistance 2R7 other end connection resistance 2R3
DC power cathode input terminal (the V of control module IC-) as the ground terminal (GND) that all can pacify latching circuit (1) entirely, it reconnects
Zener diode 2WD1 anode, capacitor 2C1,2C2 cathode, diode 2D2,2D3 anode and resistance 2R11 one end, attached hot line
The one end 2R8 and tie-point, should and tie-point as be powered keep be latched and disconnection protection circuit (8) ground terminal (GND)；Electricity
Hold 2C1 anode and connects diode 2D8 cathode with zener diode 2WD1 cathode as holding locking and the disconnection protection circuit of being powered
(8) the direct current power source voltage anode (V exported+1) connection safety control module IC DC supply input positive terminal (V+)；Two poles
Pipe 2D8 anode connects the one end resistance 2R9, and the resistance 2R9 other end connects 2D1,2D4 cathode, capacitor 2C2 anode and resistance 2,R10 mono-
End and the attached hot line 2R8 other end are as holding locking and the interior direct current power source voltage anode (V of disconnection protection circuit (8) of being powered+3)；
The concatenation point of the resistance 2R10 other end and the resistance 2R11 other end keeps partial pressure in locking and disconnection protection circuit (8) as being powered
Protect point (Vdb) the connection safety control module IC another detection input (Vi2)；Diode 2D1 anode connection two
Pole pipe 2D2 cathode reconnects alternating current wires as the AC input for keeping locking and disconnection protection circuit (8) that is powered
L2The normally opened button CKA load-side of upper mounting is described 2. with one end of bidirectional triode thyristor in solid-state relay SSR (the 10th foot)
1. normally opened button CKA source side connects alternating current wires L with the other end of bidirectional triode thyristor in solid-state relay SSR (the 8th foot)1With
The other end of one end of protective tube BX, protective tube BX connects ac power input end (L)；Diode 2D4 cathode connecting diode
2D3 cathode connects alternating current wires L as another AC input for keeping locking and disconnection protection circuit (8) that is powered3With
Heating wire WR head end (A), heating wire WR tail end (B) connect alternating current wires N1With diode 2D10 anode and transfer switch
The 2nd gear of load-side of the 1st gear of load-side of DWK, transfer switch DWK connects alternating current wires N2It is negative with diode 2D10
Pole, the 3rd gear of load-side of transfer switch DWK are vacant as power-off gear, the source side of transfer switch DWK three
Ac power input end (N) is connected after gear is in parallel；In-phase output end (the V of the safety control module ICo1) two poles of connection
Pipe D6 cathode, diode D6 anode connect the one end resistance R6, and the resistance R6 other end connects light emitting diode in solid-state relay SSR
Cathode (the 1st foot), the anti-phase output of light emitting diode positive (the 16th foot) connection safety control module IC in solid-state relay SSR
Hold (Vo2)。
The circuit function principle of Fig. 2 is as follows:
Normal heating principle: when needing electric blanket investment fever work, AC power source input both ends (L, N) in Fig. 2
After inputting suitable AC power source, transfer switch DWK is first connected into the 1st grade (total power gear), then click (or open
It is dynamic) normally opened button CKA in self-lock switch (6), allow alternating current wires L2, full-wave rectification bridge is (by diode 2D1 to 2D4 and conduct
The attached hot line 2R8 of DC channel is formed), alternating current wires L3With heating wire WR and alternating current wires N1The alternating current master of composition returns
The AC power source of input is connected on road, and alternating current forms direct current after full-wave rectification bridge, capacitor 2C2 filtering, in capacitor 2C2 anode
Voltage V+3, then after resistance 2R9, diode 2D8 and capacitor 2C1, zener diode 2WD1 filtering voltage regulation, for all-round full An Zisuo
DC supply input positive terminal (the V of the interior safety control module IC of circuit (1)+) direct current power source voltage V is provided+1.At the beginning of powering on, electricity
Hot line WR makes heat touching line RC institute temperature-sensitive degree lower, because separation layer is in state of insulation, therefore all can pacify the upper defeated of latching circuit (1) entirely
Enter end (Vi5) and lower input terminal (Vi6) resulting DC potential is very low, through resistance 2R5,2R12 parallel connection, series diode 2D7 is lifted again
After rising, in the detection input (V of safety control module ICi1) obtained operating potential also below lower limit built in it, makes to control safely
Molding block IC works on state, in-phase output end (Vo1) output low potential, reversed-phase output (Vo2) output high potential,
It allows lumination of light emitting diode in solid-state relay SSR, triggers bidirectional triode thyristor conducting in solid-state relay SSR, connect alternating current
Source, then allowing diode 2D1 to 2D4 to obtain full-wave rectification electric current is that capacitor 2C2 anode establishes DC voltage V+3Pass through resistance again
2R9, diode 2D8 export steady dc voltage V+1, continue working safety control module IC on state, control solid-state
Bidirectional triode thyristor constant conduction in relay SSR, makes alternating current major loop be continuously maintained at locking energized state, then just allows
Heating wire WR continues heating power, the attached hot line 2R8 and heating wire WR is the same is all arranged between fabric of electric heat blanket, is convenient for
Heat dissipation.If the heat and temperature drift of electric blanket, need electric blanket temperature adjusting the temperature range to feel comfortable to human body, just
Transfer switch DWK is turned by the 1st grade to the 2nd grade, diode 2D10 is allowed to devote oneself to work, at this point, positive can only be powered, is anti-
It cannot be powered to cut-off, electrical power reduces half in heating wire WR, and the temperature of electric blanket will reduce very much.Stop to electric blanket
It only generates heat, transfer switch DWK is turned to the 3rd grade, alternating current has just been fully disconnected, has made DC voltage V+3And direct current
Press V+1It disappears quickly, safety control module IC cannot be continuously, operating voltage is provided, light emitting diode is not in solid-state relay SSR
It can shine, bidirectional triode thyristor just ends naturally in solid-state relay SSR, cutting AC power source；At this point, if power supply is converted again
Switch DWK is placed in the 1st grade or the 2nd grade, and safety control module IC and solid-state relay SSR still power loss are always by alternating current master
Circuit is self-locking in the unlocking condition of power-off.If thinking, electric blanket is once again powered up fever, needs to press normally opened button CKA again, allows two
Pole pipe 2D1 to 2D4 and capacitor 2C1,2C2 provide again for safety control module IC and solid-state relay SSR continual and steady straight
Galvanic electricity presses V+1, bidirectional triode thyristor constant conduction in safety control module IC control solid-state relay SSR could be allowed, and by alternating current
Stream major loop is locked in lasting locking energized state.
Overheating protection principle: when heating wire WR is overheated in electric blanket, temperature rise is higher than normal range (NR), causes heat touching line RC and electricity
Somewhere or many places (at such as its head end A-a or at tail end B-b or intermediate somewhere) insolated layer materials impedance between hot line WR becomes smaller
(electric leakage is larger) or rapid melting break-through short circuit, latching circuit all can be pacified entirely by allowing alternating voltage to touch line RC by heat and be directly entered
(1) upper input terminal (Vi5) and lower input terminal (Vi6), as upper input terminal (Vi5) or lower input terminal (Vi6) alternating voltage in polarity is
When positive A → a or B → b, quickly filled by latching circuit (1) interior diode 2D11 or diode 2D12 all can be pacified entirely to capacitor 2C3
Electricity makes temperature-sensitive input terminal Vi3Current potential rapid increase will not charge because of the reverse isolation of diode 2D7 to capacitor 2C1；When upper defeated
Enter end (Vi5) or lower input terminal (Vi6) alternating voltage reversely reduced when polarity is negative a → A or b → B, all-round full An Zisuo
The interior charged position capacitor 2C3 of circuit (1) needs then just to make to feel by resistance 2R5 or resistance 2R12 reversely slowly electric discharge reduction
Warm input terminal (Vi3) current potential is always the direct current power source voltage (V that provides of safety control module IC close to full-wave rectification bridge+1), touching
Send out the state overturning of safety control module IC, in-phase output end (Vo1) output high potential, reversed-phase output (Vo2) the low electricity of output
Position, controlling light emitting diode in solid-state relay SSR cannot shine, end bidirectional triode thyristor in solid-state relay SSR naturally,
Cut off AC power source；Light emitting diode just loses completely in full-wave rectification bridge and safety control module IC and solid-state relay SSR
Electric current is maintained, bidirectional triode thyristor in solid-state relay SSR is self-locking in the unlocking condition of power-off always, heating wire WR always cannot
It is powered.Then, it is achieved that the overheating protection to electric blanket.
Never failure factors: the AC power source needed for normally generating heat because of electric blanket needs by full-wave rectification bridge to be safety
Direct current power source voltage (the V that control module IC is provided+1), it allows lumination of light emitting diode in solid-state relay SSR, triggers solid-state relay
Bidirectional triode thyristor is connected in device SSR, and is persistently latched in energized state, could maintain the alternating current for connecting alternating current major loop
Source.When safety control module IC output and input circuit, heat touching line RC, light emitting diode and two-way in solid-state relay SSR
Silicon-controlled, full-wave rectification bridge and output direct current power source voltage (V+1) etc. in all links, be such as abnormal open circuit or certain short circuit
Failure destroys bidirectional triode thyristor in solid-state relay SSR and maintains by the glow current of light emitting diode in solid-state relay SSR
The condition of self-locking of locking, with regard to auto-unlocking power off, fed back through power loss, but by bidirectional triode thyristor in solid-state relay SSR always from
The unlocking condition in power-off is locked, so that electric blanket is abnormal open circuit or short trouble in overheat, protects control circuit still not
Out of control, overheating protection function never fails, and completely eliminates the security risk and defect of electric blanket.Then, be achieved that for
Family provides a kind of hope of the full peace electric blanket of all-round hot Baoding effect.
Breaking protection principle: when heating wire (silk) fracture occurs for somewhere inside heating wire WR, due to capacitor 2C1 and 2C2
The electric discharge of institute's reserve of electricity needs certain time, and therefore, light emitting diode is also wanted in safety control module IC control solid-state relay SSR
Delay a period of time just disconnects glow current after electric heating thread breakage, then bidirectional triode thyristor also will be in solid-state relay SSR
AC power source is just cut off after postponing a period of time after electric heating thread breakage.As long as the discharge time of capacitor 2C1 and 2C2 are more than diode
The reversed cut-off power-off time of 2D10 does not just influence heating wire WR normal table heating power.If heating wire WR rupture time
More than the discharge time of capacitor 2C1 and 2C2, then safety control module IC controls bidirectional triode thyristor delay in solid-state relay SSR
After cutting off AC power source, it will be self-locking in the unlocking condition of power-off always.The technical measures are that heating wire (silk) is disconnected in order to prevent
Split rear flashing (arcing) overlong time hot-spot, and then ignite fabric of electric heat blanket or directly cause fire, jeopardize personal property
Safety.In addition, keeping partial pressure in locking and disconnection protection circuit (8) using the concatenation of resistance 2R10 and resistance 2R11 point as being powered
Protect point (Vdb) connection safety control module IC a detection input (Vi2), there is apparent saving cost advantage, works as resistance
The both ends of 2R10 and resistance 2R11 or intermediate partial pressure protection point (Vdb) to detection input (Vi2) disconnection fault occurs in any one
When, or when disconnection fault occurs for the both ends of the attached hot line 2R8 as electric heating DC channel or intermediate any one, it can all allow peace
Detection input (the V of full control module ICi2) detect extremely low or high input current potential, trigger the work of its second unit circuit
State overturning, reversed-phase output (Vo2) output low level, control solid-state relay SSR in light emitting diode not shine, to
Bidirectional triode thyristor ends immediately in control solid-state relay SSR disconnects AC power source, and attached hot line 2R8 breaking protection is made to come into force.It can
See, the present invention can ensure that breaking protection function is constant effectively, thoroughly reliably eliminate the security risk and defect of electric blanket, institute
To say that the present invention is a kind of full peace electric blanket of all-round hot Baoding effect.
Three, illustrating to embodiment 2:
Currently preferred 2 circuit diagram of specific embodiment, as shown in figure 3, described all can pacify latching circuit (1) entirely
Including safety control module IC, resistance 3R2,3R5,3R12,3R7, capacitor 3C3 and diode D5, D6,3D7, zener diode
3WD2,3WD3 and electromagnetic relay J coil, the self-lock switch (6) include normally opened button CKA and electromagnetic relay Jb normal
Contact and electromagnetic relay J normally opened contact are opened, the energization keeps locking and disconnection protection circuit (8) includes diode
3D1 to 3D4,3D9, zener diode 3WD1 and capacitor 3C1,3C2, resistance 3R9, attached hot line 3R8 and electromagnetic relay Jb line
Circle；Heat touching line (3) is exactly the heat touching line RC of outer layer, and heating wire (5) is exactly the heating wire WR of internal layer, the heating wire of internal layer
Hot general character separation layer or heat leak sexual isolation layer are adapted between WR and the heat touching line RC of outer layer, such as common nylon melts thermoplasticity fastly
Material belongs to the characteristic that hot general character insolated layer materials have overheat fast thawing break-through short circuit, such as semiconductor nylon thermoplastic's material category
In the NTC characteristic that heat leak sexual isolation layer material has temperature more high impedance more Low dark curient bigger；The protective tube (7) is exactly to use
The protective tube BX of the fusible link manufacture of anti-short circuit current, the transfer switch (9) are exactly that there are three the power supplys of gear to turn
Switch DWK is changed, the cooler (10) is exactly diode 3D10；Circuit connecting mode: the safety control module IC's
Two detection input (Vi1、Vi2) it is attempted by diode 3D7 anode and the one end resistance 3R2, the connection safety control of the resistance 3R2 other end
DC power anode input terminal (the V of molding block IC+) as the DC supply input positive terminal that all can pacify latching circuit (1) entirely,
Reconnect one end and the capacitor 3C1 anode, zener diode 3WD1 cathode of resistance 3R9；Diode 3D7 cathode connects two pole of pressure stabilizing
Two cathode of pipe 3WD2,3WD3 and the one end capacitor 3C3 are as the temperature-sensitive input terminal (V that all can pacify latching circuit (1) entirelyi3)；Pressure stabilizing two
Pole pipe 3WD2 anode connects the one end resistance 3R5, and the other end of resistance 3R5 is as the upper input terminal that all can pacify latching circuit (1) entirely
(Vi5) reconnect the head end (a) that heat touches line RC, heat connection one end resistance 3R12 touching line RC tail end (b) and resistance 3R7 one end conduct
Lower input terminal (the V of latching circuit (1) all can be pacified entirelyi6)；The resistance 3R12 other end connects zener diode 3WD3 anode；Resistance
The other end of 3R7 simultaneously connects the anode of diode 3D2,3D3, zener diode 3WD1 anode and capacitor 3C1,3C2 cathode, capacitor
DC power cathode input terminal (the V of the other end of 3C3, the one end attached hot line 3R8 and safety control module IC-) as all-round complete
Pacify the ground terminal (GND) of latching circuit (1) and be powered and keeps the ground terminal (GND) of locking and disconnection protection circuit (8)；Capacitor
3C1 anode connects the one end resistance 3R9 with zener diode 3WD1 cathode as being powered and keeps locking and disconnection protection circuit (8) defeated
Direct current power source voltage anode (V out+1) connection safety control module IC DC power anode input terminal (V+)；Resistance 3R9 is another
One end connects electromagnetic relay Jb coil one end and diode 3D9,3D1,3D4 cathode and capacitor 3C2 anode and keeps as being powered
Locking and the interior direct current power source voltage anode (V of disconnection protection circuit (8)+3), the electromagnetic relay Jb coil other end connects diode
3D9 anode and the attached hot line 3R8 other end；Diode 3D1 cathode connecting diode 3D2 cathode keeps locking and broken string as being powered
An AC input of circuit (8) is protected to reconnect alternating current wires L2The normally opened button CKA load-side and electromagnetism of upper mounting
The movable contact of the stationary contact of relay Jb normally opened contact, electromagnetic relay Jb normally opened contact connects electromagnetic relay J normally opened contact
Movable contact；The stationary contact of the normally opened button CKA source side and electromagnetic relay J normally opened contact is through alternating current wires L1Connection
The other end of one end of protective tube BX, protective tube BX connects ac power input end (L)；Diode 3D4 cathode connecting diode
3D3 cathode connects alternating current wires L as another AC input for keeping locking and disconnection protection circuit (8) that is powered3With
Heating wire WR head end (A), heating wire WR tail end (B) connect alternating current wires N1With diode 3D10 anode and transfer switch
The 2nd gear of load-side of the 1st gear of load-side of DWK, transfer switch DWK connects alternating current wires N2It is negative with diode 3D10
Pole, the 3rd gear of load-side of transfer switch DWK are vacant as power-off gear, the source side of transfer switch DWK three
Ac power input end (N) is connected after gear is in parallel；In-phase output end (the V of the safety control module ICo1) two poles of connection
Pipe D6 cathode, diode D6 anode and diode D5 anode are connected to electromagnetic relay J coil one end, electromagnetic relay J coil
Reversed-phase output (the V of the other end connection diode D5 cathode and safety control module ICo2)。
The circuit function principle of Fig. 3 is as follows:
Normal heating principle: when needing electric blanket investment fever work, AC power source input both ends (L, N) in Fig. 3
After inputting suitable AC power source, transfer switch DWK is first connected into the 1st grade (total power gear), then click (or open
It is dynamic) normally opened button CKA in self-lock switch (6), allow alternating current wires L2, full-wave rectification bridge is (by diode 3D1 to 3D4 and electromagnetism
Relay Jb coil tandem attached hot line 3R8 composition), alternating current wires L3With heating wire WR and alternating current wires N1The alternating current of composition
The AC power source that major loop connects input is flowed, alternating current is after the full-wave rectification bridge, capacitor 3C2 filtering, in capacitor 3C2
Anode forms DC voltage V+3, first allow electromagnetic relay Jb coil to be powered and be attracted its normally opened contact, while DC voltage V+3It passes through again
After resistance 3R9 and capacitor 3C1, zener diode 3WD1 filtering voltage regulation, for latching circuit (1) interior safety control module all can be pacified entirely
DC supply input positive terminal (the V of IC+) direct current power source voltage V is provided+1.At the beginning of powering on, heating wire WR allows heat touching line RC to be felt
Temperature is lower, because separation layer is in state of insulation, therefore all can pacify the upper input terminal (V of latching circuit (1) entirelyi5) and lower input terminal
(Vi6) resulting DC potential is very low, zener diode 3WD2 anode is concatenated through resistance 3R5 and resistance 3R12 concatenates two pole of pressure stabilizing
Pipe 3WD3 anode again series diode 3D7 lifting after, in the two detection input (V of safety control module ICi1、Vi2) obtain
Operating potential makes safety control module IC work on state, in-phase output end (V also below lower limit built in ito1) output
Low potential, reversed-phase output (Vo2) output high potential, it allows electromagnetic relay J coil to be powered and generates electromagnetic force (G), make electromagnetism relay
Device J normally opened contact, which is attracted, connects AC power source, and then allowing diode 3D1 to 3D4 to obtain full-wave rectification electric current is capacitor 3C2 anode
Establish DC voltage V+3Again by exporting stable DC after resistance 3R9 and capacitor 3C1, zener diode 3WD1 filtering voltage regulation
Press V+1, continue working safety control module IC on state, allow electromagnetic relay J coil to be persistently powered and generate electromagnetic force
(G), it is attracted electromagnetic relay J normally opened contact persistently and connects AC power source, alternating current major loop is made to be continuously maintained at locking
Energized state, then just allows heating wire WR to continue heating power, and the attached hot line 3R8 is arranged in electricity as heating wire WR
Between hot carpet surface material, convenient for heat dissipation.If the heat and temperature drift of electric blanket, needs to adjust electric blanket temperature to human body and feel
Transfer switch DWK is just turned by the 1st grade to the 2nd grade, diode 3D10 is allowed to devote oneself to work by comfortable temperature range, this
When, it positive can only be powered, reversely end and cannot be powered, electrical power reduces half in heating wire WR, and the temperature of electric blanket will drop
It is much lower.Stop generating heat to electric blanket, transfer switch DWK turned to the 3rd grade, alternating current has just been fully disconnected,
Make DC voltage V+3With DC voltage V+1It disappears quickly, safety control module IC cannot be continuously, operating voltage is provided, make electromagnetism
The coil of relay J and Jb, which all lose, maintains its normally opened contact of electric current to be all placed in the unlocking condition for disconnecting power supply.If at this point, again
Transfer switch DWK is placed in the 1st grade or the 2nd grade, but heating wire WR and full-wave rectification bridge, safety control module IC and electromagnetism
Alternating current major loop is self-locking in by the coil still power loss of relay J and Jb, the normally opened contact of electromagnetic relay J and Jb always
The unlocking condition of power-off.If thinking, electric blanket is once again powered up fever, needs to press normally opened button CKA again, allow full-wave rectification bridge and
Capacitor 3C2 establishes DC voltage V+3, first allow electromagnetic relay Jb coil to be powered and be attracted its normally opened contact, resistance 3R9 and capacitor 3C1
Continual and steady DC voltage V is provided again for safety control module IC and electromagnetic relay J coil+1, could allow security control
Module I C control electromagnetic relay J normally opened contact cooperation electromagnetic relay Jb normally opened contact, which is persistently attracted, connects AC power source, and
Alternating current major loop is locked in lasting locking energized state.
Overheating protection principle: when heating wire WR is overheated in electric blanket, temperature rise is higher than normal range (NR), causes heat touching line RC and electricity
Somewhere or many places (at such as its head end A-a or at tail end B-b or intermediate somewhere) insolated layer materials impedance between hot line WR becomes smaller
(electric leakage is larger) or rapid melting break-through short circuit, latching circuit all can be pacified entirely by allowing alternating voltage to touch line RC by heat and be directly entered
(1) upper input terminal (Vi5) and lower input terminal (Vi6), as upper input terminal (Vi5) or lower input terminal (Vi6) alternating voltage in polarity is
It is negative by resistance 3R5 to zener diode 3WD2 cathode and/or resistance 3R12 to zener diode 3WD3 when positive A → a or B → b
Pole makes temperature-sensitive input terminal V to capacitor 3C3 quick chargei3Current potential rapid increase will not be to electricity because of the reverse isolation of diode 3D7
Hold 3C1 charging；As upper input terminal (Vi5) or lower input terminal (Vi6) alternating voltage reversely dropped when polarity is negative a → A or b → B
Low, the charged position capacitor 3C3 needs to be backwards to resistance 3R5 by zener diode 3WD2 and/or zener diode 3WD3 is backwards to
The big impedance such as resistance 3R12 slowly discharges and reduces current potential, then just makes temperature-sensitive input terminal (Vi3) and safety control module IC two inspections
Survey input terminal (Vi1、Vi2) current potential all close to full-wave rectification bridge is always the direct current power source voltage that provides of safety control module IC
(V+1), the state overturning of triggering safety control module IC, in-phase output end (Vo1) output high potential, reversed-phase output (Vo2)
Low potential is exported, control electromagnetic relay J coil blackout, its normally opened contact are decontroled, and the alternating current of alternating current major loop is cut off
Source, full-wave rectification bridge power loss, after and cause electromagnetic relay Jb coil lose maintain its normally opened contact of electric current be also placed in it is disconnected
Heating wire WR cannot be powered always for the unlocking condition of switch power supply.Then, it is achieved that the overheating protection to electric blanket.
Never failure factors: the AC power source needed for normally generating heat because of electric blanket needs by full-wave rectification bridge to be electromagnetism
The coil of relay Jb, which provides, maintains electric current to be attracted its normally opened contact, the DC power supply electricity also provided for safety control module IC
Press (V+1), it allows safety control module IC control electromagnetic relay J coil to be powered and is attracted its normally opened contact, and be persistently latched in energization
State could maintain the AC power source for connecting alternating current major loop.When full-wave rectification bridge and output direct current power source voltage (V+1)、
Safety control module IC's outputs and inputs circuit, heat touching line RC, electromagnetic relay J coil and normally opened contact, electromagnetic relay
In all links such as Jb coil and normally opened contact, be such as abnormal open circuit or certain short trouble, destroy electromagnetic relay J and
Jb normally opened contact maintains the condition of self-locking of locking by electromagnetic relay J and Jb coil current, powers off with regard to auto-unlocking, makes electric heating
Blanket is abnormal open circuit or short trouble in overheat, protects control circuit still not out of control, and overheating protection function never fails,
Completely eliminate the security risk and defect of electric blanket.Then, it is achieved that and provides the complete of the all-round hot Baoding effect of one kind for user
Pacify the hope of electric blanket.
Breaking protection principle: when heating wire (silk) fracture occurs for somewhere inside heating wire WR, locking is kept due to being powered
And the interior capacitor 3C1 and 3C2 institute's reserve of electricity electric discharge of disconnection protection circuit (8) needs certain time, therefore, electromagnetic relay Jb is normally opened
The electromagnetic relay J normally opened contact of contact and safety control module IC control will also postpone a period of time just after electric heating thread breakage
Cut off AC power source.As long as being powered and being kept for the discharge time of locking and the interior capacitor 3C1 and 3C2 of disconnection protection circuit (8) is more than two
The reversed cut-off power-off time of pole pipe 3D10 does not just influence heating wire WR normal table heating power.If heating wire WR is broken
Time is more than the discharge time for being powered and keeping locking and the interior capacitor 3C1 and 3C2 of disconnection protection circuit (8), then electromagnetic relay Jb
It is anti-through power loss after normally opened contact and the electromagnetic relay J normally opened contact delay cutting AC power source of safety control module IC control
Feedback, will be self-locking in the unlocking condition of power-off always.The technical measures are flashing (jumps after heating wire (silk) fracture in order to prevent
Fire) overlong time hot-spot, and then ignite fabric of electric heat blanket or directly cause fire, jeopardize personal safety as well as the property safety.In addition,
Using secondary hot line 3R8 concatenation electromagnetic relay Jb coil as electricity in electric heating DC channel unique in rectifier bridge detection heating wire WR
Stream, there is clear advantage, can provide direct current power source voltage V for that all can pacify latching circuit (1) entirely+1, while being protected again as broken string
Shield is used: if disconnection fault occurs for pair hot line 3R8 concatenation electromagnetic relay Jb coil somewhere, the normally opened touching of electromagnetic relay Jb
Point directly controls lock-controlled switch (6) and disconnects AC power source immediately, will not be to all can pacify safety control module in latching circuit (1) entirely
IC generates impacting with high pressure and influence out of control；Also make circuit structure simple.As it can be seen that the present invention, which can ensure that breaking protection function is constant, to be had
Effect, thoroughly reliably eliminates the security risk and defect of electric blanket, and thus the present invention is the complete of the all-round hot Baoding effect of one kind
Pacify electric blanket.
Four, illustrating to embodiment 3:
Currently preferred 3 circuit diagram of specific embodiment, as shown in figure 4, described all can pacify latching circuit (1) entirely
Including resistance 4R5,4R7,4R12, capacitor 4C3 and diode D5,4D7, zener diode 4WD2,4WD3 and electromagnetic relay J
Coil, or electromagnetic relay J coil and diode D5 are replaced with light emitting diode series resistor R6 in solid-state relay SSR；
The self-lock switch (6) includes normally opened button CKA and electromagnetic relay Jb normally opened contact and electromagnetic relay J normally opened contact,
Or electromagnetic relay J normally opened contact is replaced with bidirectional triode thyristor in solid-state relay SSR；The energization keeps locking and breaks
It includes diode 4D1 to 4D4,4D9, zener diode 4WD1 and capacitor 4C1,4C2, resistance 4R9, attached heat that line, which protects circuit (8),
Line 4R8 and electromagnetic relay Jb coil；Heat touching line (3) is exactly the heat touching line RC of outer layer, and heating wire (5) is exactly internal layer
Heating wire WR, adapt to hot general character separation layer or heat leak sexual isolation between the heating wire WR of internal layer and the heat touching line RC of outer layer
Layer, such as common nylon melt thermoplastic material fastly and belong to the characteristic that hot general character insolated layer materials have overheat fast thawing break-through short circuit,
Such as semiconductor nylon thermoplastic's material belongs to heat leak sexual isolation layer material with the temperature more bigger NTC of high impedance more Low dark curient
Characteristic；The protective tube (7) is exactly the protective tube BX manufactured with the fusible link of anti-short circuit current, the transfer switch
(9) it is exactly transfer switch DWK there are three gear；The cooler (10) is exactly diode 4D10；Circuit side connector
Formula: one end connection diode D5 cathode of the electromagnetic relay J coil is as the direct current that all can pacify latching circuit (1) entirely
Source electrode input end, other end connection diode D5,4D7 anode of electromagnetic relay J coil, diode 4D7 cathode simultaneously connect steady
Press two cathode of diode 4WD2,4WD3 and the one end capacitor 4C3 as the temperature-sensitive input terminal (V that all can pacify latching circuit (1) entirelyi3)；
Zener diode 4WD2 anode connects the one end resistance 4R5, and the resistance 4R5 other end as all can pacify the upper defeated of latching circuit (1) entirely
Enter end (Vi5) the hot head end (a) for touching line RC of connection, one end of one end connection resistance 4R7 of resistance 4R12 is as all-round full An Zisuo
Lower input terminal (the V of circuit (1)i6) tail end (b) that heat touches line RC is reconnected, the other end of resistance 4R12 connects zener diode
4WD3 anode；The other end of resistance 4R7 simultaneously meets the anode of zener diode 4WD1, the other end of capacitor 4C3, capacitor 4C1,4C2
Cathode, the one end attached hot line 4R8 and diode 4D2,4D3 anode as the ground terminal (GND) that all can pacify latching circuit (1) entirely and
It is powered and keeps the ground terminal (GND) of locking and disconnection protection circuit (8)；Capacitor 4C1 anode and zener diode 4WD1 cathode connect
The one end connecting resistance 4R9 keeps the direct current power source voltage anode (V of locking and disconnection protection circuit (8) output as being powered+1) connect again
Connect the DC power anode input terminal that all can pacify latching circuit (1) entirely；The resistance 4R9 other end connects electromagnetic relay Jb coil one
End and diode 4D9,4D1,4D4 cathode and capacitor 4C2 anode are as straight in be powered holding locking and disconnection protection circuit (8)
Galvanic electricity source positive polarity (V+3), the electromagnetic relay Jb coil other end connects the attached hot line 4R8 other end and diode 4D9 anode；
Diode 4D1 cathode connecting diode 4D2 cathode keeps an alternating current of locking and disconnection protection circuit (8) defeated as being powered
Enter end and reconnects alternating current wires L2The normally opened button CKA load-side of upper mounting and the stationary contact of electromagnetic relay Jb normally opened contact,
The movable contact of the movable contact connection electromagnetic relay J normally opened contact of electromagnetic relay Jb normally opened contact, the normally opened button CKA
Source side connects alternating current wires L with the stationary contact of electromagnetic relay J normally opened contact1With one end of protective tube BX, protective tube BX's
The other end connects ac power input end (L)；Diode 4D4 cathode connecting diode 4D3 cathode as be powered keep locking and
Another AC input of disconnection protection circuit (8) connects alternating current wires L3With the head end (A) of heating wire WR, heating wire WR
Tail end (B) connect alternating current wires N1With the 1st gear of load-side of diode 4D10 anode and transfer switch DWK, electricity
The 2nd gear of load-side of source changeover switch DWK connects alternating current wires N1With diode 4D10 cathode, transfer switch DWK's
The 3rd gear of load-side is vacant as power-off gear, connects alternating current after three gears of source side of transfer switch DWK are in parallel
Source input terminal (N)；Or electromagnetic relay J is replaced with solid-state relay SSR, just by light emitting diode in solid-state relay SSR
Pole (the 16th foot) connection, which is powered, keeps the direct current power source voltage anode (V of locking and disconnection protection circuit (8) output+1), solid-state after
Light emitting diode cathode (the 1st foot) connects resistance R6 in electric appliance SSR, and the resistance R6 other end connects 4D7 anode, then by solid-state relay
One end (the 10th foot) of bidirectional triode thyristor connects alternating current wires L in device SSR1With the source side and protective tube BX of normally opened button CKA
One end, the dynamic touching of the other end (the 8th foot) the connection electromagnetic relay Jb normally opened contact of bidirectional triode thyristor in solid-state relay SSR
Point.
The circuit function principle of Fig. 4 is as follows:
Normal heating principle: when needing electric blanket investment fever work, AC power source input both ends (L, N) in Fig. 4
After inputting suitable AC power source, transfer switch DWK is first connected into the 1st grade (total power gear), then click (or open
It is dynamic) normally opened button CKA in self-lock switch (6), allow alternating current wires L2, full-wave rectification bridge is (by diode 4D1 to 4D4 and electromagnetism
Relay Jb coil tandem attached hot line 4R8 composition), alternating current wires L3With heating wire WR and alternating current wires N1The alternating current of composition
The AC power source that major loop connects input is flowed, alternating current is after the full-wave rectification bridge, capacitor 4C2 filtering, in capacitor 4C2
Anode forms DC voltage V+3, first allow electromagnetic relay Jb coil to be powered and be attracted its normally opened contact, while DC voltage V+3It passes through again
After resistance 4R9 and capacitor 4C1, zener diode 4WD1 filtering voltage regulation, for the interior electromagnetic relay J of latching circuit (1) all can be pacified entirely
Coil provides direct current power source voltage V+1.At the beginning of powering on, heating wire WR makes heat touching line RC institute temperature-sensitive degree lower, because separation layer is in exhausted
Edge state, therefore the upper input terminal (V of latching circuit (1) all can be pacified entirelyi5) and lower input terminal (Vi6) resulting DC potential is lower,
Zener diode 4WD2 anode and resistance 4R12 concatenation zener diode 4WD3 anode series diode again are concatenated through resistance 4R5
After 4D7 lifting, in the operating potential that diode 4D7 anode obtains than direct current power source voltage V+1The difference voltage being lower than, connects substantially
The voltage rating of nearly electromagnetic relay J coil allows the energization of electromagnetic relay J coil to be attracted its normally opened contact and connects alternating current
Source continues that diode 4D1 to 4D4 is allowed to obtain full-wave rectification electric current to be that capacitor 4C2 anode establishes DC voltage V+3Pass through resistance again
Steady dc voltage V is exported after 4R9 and capacitor 4C1, zener diode 4WD1 filtering voltage regulation+1, and allow electromagnetic relay J coil
It is lasting to be powered, it is attracted electromagnetic relay J normally opened contact persistently and connects AC power source, be continuously maintained at alternating current major loop
It is latched energized state, then just allows heating wire WR to continue heating power, the attached hot line 4R8 is arranged as heating wire WR
Between fabric of electric heat blanket, convenient for heat dissipation.If the heat and temperature drift of electric blanket, need to adjust electric blanket temperature to human body
The temperature range to feel comfortable just turns transfer switch DWK to the 2nd grade by the 1st grade, and diode 4D10 is allowed to put into work
Make, at this point, positive can only be powered, reversely end and cannot be powered, electrical power reduces half in heating wire WR, and the temperature of electric blanket is just
It can reduce very much.Stop generating heat to electric blanket, transfer switch DWK is turned to the 3rd grade, alternating current has just been fully disconnected
Stream, makes DC voltage V+3With DC voltage V+1It disappears quickly, the coil that cannot be continuously electromagnetic relay J and Jb provides maintenance
Electric current makes its normally opened contact be all placed in the unlocking condition for disconnecting power supply.At this point, if transfer switch DWK is placed in the 1st again
Shelves or the 2nd grade, but the coil still power loss of heating wire WR and full-wave rectification bridge and electromagnetic relay J and Jb, electromagnetic relay J and
Alternating current major loop is self-locking in the unlocking condition of power-off by the normally opened contact of Jb always.If thinking, electric blanket is once again powered up fever,
It needs to press normally opened button CKA again, full-wave rectification bridge and capacitor 4C2 is allowed to establish DC voltage V+3, first allow electromagnetic relay Jb
Coil, which is powered, is attracted its normally opened contact, and resistance 3R9 and capacitor 3C1 provide again for electromagnetic relay J coil continual and steady straight
Galvanic electricity presses V+1, electromagnetic relay J normally opened contact cooperation electromagnetic relay Jb normally opened contact could be allowed persistently to be attracted and connect alternating current
Source, and alternating current major loop is locked in lasting locking energized state.
Overheating protection principle: when heating wire WR is overheated in electric blanket, temperature rise is higher than normal range (NR), causes heat touching line RC and electricity
Somewhere or many places (at such as its head end A-a or at tail end B-b or intermediate somewhere) insolated layer materials impedance between hot line WR becomes smaller
(electric leakage is larger) or rapid melting break-through short circuit, latching circuit all can be pacified entirely by allowing alternating voltage to touch line RC by heat and be directly entered
(1) upper input terminal (Vi5) and lower input terminal (Vi6), as upper input terminal (Vi5) or lower input terminal (Vi6) alternating voltage in polarity is
It is negative by resistance 4R5 to zener diode 4WD2 cathode and/or resistance 4R12 to zener diode 4WD3 when positive A → a or B → b
Pole makes temperature-sensitive input terminal V to capacitor 4C3 quick chargei3Current potential rapid increase will not be to electricity because of the reverse isolation of diode 4D7
Hold 4C1 charging；As upper input terminal (Vi5) or lower input terminal (Vi6) alternating voltage reversely dropped when polarity is negative a → A or b → B
Low, the charged position capacitor 4C3 needs to be backwards to resistance 4R5 by zener diode 4WD2 and/or zener diode 4WD3 is backwards to
The big impedance such as resistance 4R12 slowly discharges and reduces current potential, then just makes temperature-sensitive input terminal (Vi3) and diode 4D7 anodic potentials are all
Always direct current power source voltage (the V provided close to full-wave rectification bridge for electromagnetic relay J coil+1), block electromagnetic relay J coil
Electric current, its normally opened contact decontrol, cut off alternating current major loop AC power source, full-wave rectification bridge power loss, after and cause electricity
The coil of magnetic relay Jb lose maintain its normally opened contact of electric current be also placed in disconnect power supply unlocking condition, allow heating wire WR always
It cannot be powered.Then, it is achieved that the overheating protection to electric blanket.
Never failure factors: the AC power source needed for normally generating heat because of electric blanket needs by full-wave rectification bridge to be electromagnetism
Two coils of relay J and Jb, which provide, maintains electric current to be attracted its normally opened contact, and is persistently latched in energized state, could maintain
Connect the AC power source of alternating current major loop.When full-wave rectification bridge and output direct current power source voltage (V+1), electromagnetic relay J and
Two coil of Jb and two groups of normally opened contacts, heat touching line RC, resistance 4R5 string zener diode 4WD2 and resistance 4R12 string zener diode
In all electric current links such as 4WD3, diode 4D7, it is such as abnormal open circuit or certain short trouble, destroys electromagnetic relay J
The condition of self-locking for maintaining locking by electromagnetic relay J and Jb coil current with Jb normally opened contact, powers off with regard to auto-unlocking, makes electricity
Hot blanket is abnormal open circuit or short trouble in overheat, protects control circuit still not out of control, overheating protection function never loses
Effect, completely eliminates the security risk and defect of electric blanket.Then, it is achieved that and provides the all-round hot Baoding effect of one kind for user
The hope of full peace electric blanket.
Breaking protection principle: when heating wire (silk) fracture occurs for somewhere inside heating wire WR, by capacitor 4C1,4C2 institute
Reserve of electricity electric discharge needs certain time, and therefore, the normally opened contact of electromagnetic relay J and Jb also will postpone one after electric heating thread breakage
The section time just cuts off AC power source.As long as the discharge time of capacitor 4C1,4C2 are more than the reversed cut-off power-off of diode 4D10
Between, heating wire WR normal table heating power is not just influenced.If heating wire WR rupture time is more than putting for capacitor 4C1 and 4C2
The electric time feeds back then after the normally opened contact delay cutting AC power source of electromagnetic relay J and Jb through power loss, will be self-locking always
In the unlocking condition of power-off.The technical measures are flashing (arcing) overlong time part mistakes after heating wire (silk) fracture in order to prevent
Heat, and then ignite fabric of electric heat blanket or directly cause fire, jeopardize personal safety as well as the property safety.In addition, secondary hot line 4R8 is concatenated electricity
Magnetic relay Jb coil has clear advantage, both as electric current in electric heating DC channel unique in rectifier bridge detection heating wire WR
Direct current power source voltage V can be provided for two coils of electromagnetic relay J and Jb+1, while being used again as breaking protection: if secondary heat
When line 4R8 concatenates electromagnetic relay Jb coil somewhere generation disconnection fault, electromagnetic relay Jb normally opened contact directly disconnects exchange
Power supply will not generate impacting with high pressure to capacitor 4C1,4C2 and zener diode 4WD1, also make circuit structure simple.As it can be seen that this hair
It is bright to ensure that breaking protection function is constant effective, the security risk and defect of electric blanket are thoroughly reliably eliminated, thus originally
Invention is a kind of full peace electric blanket of all-round hot Baoding effect.
Five, it remarks additionally:
1. solid-state relay SSR of the present invention is can to directly control 220V friendship using TAC018 type solid-state relay
The load of galvanic electricity pressure, 1A electric current is able to satisfy power (far below 200W) needs of electric blanket completely.It such as needs to control more high-power
Electrothermal load first can use TAC018 type solid-state relay (similar to the principle of photoelectrical coupler), drive great power bidirectional crystalline substance lock
Pipe, then control more powerful AC load.
2. safety control module IC of the present invention using anti-failure or prevent safety control circuit out of control etc or with
The equivalent and close circuit of its function, such as application No. is the control circuits that fail-safe in 201410118895.9 patent fails
Chip 1FYK or 2LEK just belong to one of safety control circuit.The safety control module IC's (hereinafter referred to as: IC) is basic
Principle and function are as follows: as two detection input (V in ICi1、Vi2) input external sense signal potential Vi3Lower than in IC
If bottom boundary potential when, IC work on state, the in-phase output end (V of ICo1) output low potential, the reversed-phase output of IC
(Vo2) output high potential, rear class execution circuit can be directly driven and connect load power source；As two detection input (V in ICi1、
Vi2) input external sense signal potential Vi3When higher than the upper boundary potential set in IC, IC works in off state, the same phase of IC
Output end (Vo1) output high potential, the reversed-phase output (V of ICo2) output low potential, the disconnection of rear class execution circuit can be directly driven
Load power source；The difference of upper and lower bound current potential is exactly the movement return difference of two kinds of working conditions of IC conversion；When two detections in IC
Input terminal (Vi1、Vi2) input external sense signal potential Vi3It is lower than the lowest limit current potential (lowest limit ratio set in IC because of abnormal failure
Bottom boundary potential is also much lower) when, out of control or anti-failure state, the in-phase output end (V of IC are being prevented in IC worko1) output high potential,
Reversed-phase output (the V of ICo2) output low potential, rear class execution circuit can also be directly driven and disconnect electrothermal load power supply, then IC
It can play the role of overheating protection and anti-failure to electrothermal load.
Claims (4)
1. the full peace electric blanket of all-round hot Baoding effect, including heating wire (5), protective tube (7), transfer switch (9), cooler
(10), it is characterised in that: further include that all can pacify latching circuit (1), heat touching line (3), self-lock switch (6), energization holding locking entirely
And disconnection protection circuit (8)；Upper input terminal (the V that latching circuit (1) all can be pacified entirelyi5) connection heat touching line (3) head end
(a), the connection of heat touching line (3) tail end (b) all can pacify the lower input terminal (V of latching circuit (1) entirelyi6), latching circuit (1) all can be pacified entirely
One detection input (V of interior safety control modulei2) external connection energization holding is latched and the interior partial pressure of disconnection protection circuit (8)
Protect point (Vdb)；Applied heat general character separation layer or heat leak sexual isolation layer between the heating wire (5) and heat touching line (3), example
Belong to the characteristic that hot general character insolated layer materials have overheat fast thawing break-through short circuit, such as half as common nylon melts thermoplastic material fastly
Conductor nylon thermoplastic's material belongs to the heat leak sexual isolation layer material NTC characteristic bigger with temperature more high impedance more Low dark curient；
The head end (A) of the heating wire (5) is connected to alternating current wires L3On, the energization keeps locking and disconnection protection circuit
(8) two AC inputs are separately connected across alternating current wires L2With alternating current wires L3Between, it is powered and locking and broken string is kept to protect
Direct current power source voltage anode (the V exported in protection circuit (8)+1) connection all can pacify full latching circuit (1) DC power anode input
End, be powered the ground terminal for keeping ground terminal (GND) connection of locking and disconnection protection circuit (8) that all can pacify latching circuit (1) entirely
(GND)；With being powered, the normally opened contact for keeping locking and the interior electromagnetic relay Jb of disconnection protection circuit (8) connects self-lock switch (6)
The on-off of AC power source is directly controlled, or keeps partial pressure protection point (V in locking and disconnection protection circuit (8) with being powereddb)
Connection control all can pacify a detection input (V of latching circuit (1) interior safety control module entirelyi2), then by that all can pacify entirely certainly
Lock circuit (1) indirectly controls self-lock switch (6) by electromagnetic force (G1) or light (G1), then control the logical of AC power source or
It is disconnected；The anode connection alternating current wires N of the cooler (10)1With the tail end (B) and transfer switch of heating wire (5)
(9) cathode of the 1st gear of load-side, cooler (10) connects alternating current wires N2With the load-side the 2nd of transfer switch (9)
Gear, the 3rd gear of load-side of the transfer switch (9) are vacant as power-off gear, the electricity of transfer switch (9)
Ac power input end N is connected after three gears of source are in parallel；The load-side of the self-lock switch (6) is connected to alternating current wires
L2On, the source side of self-lock switch (6) connects alternating current wires L1It is connected with the other end of one end of protective tube (7), protective tube (7)
Ac power input end L.
2. the full peace electric blanket of all-round hot Baoding effect according to claim 1, it is characterised in that: described all can pacify certainly entirely
Lock circuit (1) include safety control module IC, resistance 2R2,2R3,2R5, R6,2R7,2R12, capacitor 2C3 and diode D6,
Light emitting diode in 2D7,2D11,2D12 and solid-state relay SSR, the self-lock switch (6) include normally opened button CKA and
Bidirectional triode thyristor in solid-state relay SSR, the energization keep locking and disconnection protection circuit (8) include diode 2D1 extremely
2D4,2D8, zener diode 2WD1 and capacitor 2C1,2C2, resistance 2R9,2R10,2R11, attached hot line 2R8；The heat touching line
It (3) is exactly that the hot of outer layer touches line RC, heating wire (5) is exactly the heating wire WR of internal layer, and the heating wire WR of internal layer and the heat of outer layer are touched
Hot general character separation layer or heat leak sexual isolation layer are adapted between line RC, such as common nylon melts thermoplastic material fastly and belongs to the hot general character
Insolated layer materials have the characteristic of overheat fast thawing break-through short circuit, such as semiconductor nylon thermoplastic's material belongs to heat leak sexual isolation layer
The NTC characteristic that material has temperature more high impedance more Low dark curient bigger；The protective tube (7) is exactly melting with anti-short circuit current
The protective tube BX of fracture of wire manufacture, the transfer switch (9) is exactly transfer switch DWK；The cooler (10)
It is exactly diode 2D10；Circuit connecting mode: a detection input (V of the safety control module ICi1) it is connected to two
Pole pipe 2D7 anode and the one end resistance 2R2, the resistance 2R2 other end connect the DC power anode input terminal of safety control module IC
(V+) as the DC power anode input terminal that all can pacify latching circuit (1) entirely, reconnect diode 2D8 cathode and two pole of pressure stabilizing
Pipe 2WD1 cathode and capacitor 2C1 anode；Diode 2D7 cathode and connect two cathode of diode 2D11,2D12 and resistance 2R5,2R12,
Each one end capacitor 2C3 is as the temperature-sensitive input terminal (V that all can pacify latching circuit (1) entirelyi3)；The capacitor 2C3 other end connects resistance 2R3
One end, diode 2D11 anode connect the resistance 2R5 other end as the upper input terminal (V that all can pacify latching circuit (1) entirelyi5) connect again
The head end (a) of heat touching line RC is connect, heat touching line RC tail end (b) connection one end resistance 2R7 as all can pacify under latching circuit (1) entirely
Input terminal (Vi6) again and connect the other end of diode 2D12 anode and resistance 2R12；The resistance 2R7 other end connects the another of resistance 2R3
DC power cathode input terminal (the V of one end and safety control module IC-) as the ground terminal that all can pacify latching circuit (1) entirely
(GND), zener diode 2WD1 anode, capacitor 2C1,2C2 cathode, diode 2D2,2D3 anode and resistance 2R11 are reconnected
One end, attached hot line 2R8 one end and tie-point, should and tie-point keep being latched and disconnection protection circuit (8) connect as being powered
Ground terminal (GND)；Capacitor 2C1 anode connect diode 2D8 cathode with zener diode 2WD1 cathode as being powered and keeps being latched and
Direct current power source voltage anode (the V of disconnection protection circuit (8) output+1) connection safety control module IC DC supply input anode
Hold (V+)；Diode 2D8 anode connects the one end resistance 2R9, and the resistance 2R9 other end connects 2D1,2D4 cathode, capacitor 2C2 anode
Locking and disconnection protection circuit (8) interior DC power supply are kept as being powered with the one end resistance 2R10 and the attached hot line 2R8 other end
Positive polarity (V+3)；The concatenation point of the resistance 2R10 other end and the resistance 2R11 other end keeps locking and breaking protection as being powered
Partial pressure protection point (V in circuit (8)db) the connection safety control module IC another detection input (Vi2)；Diode
2D1 cathode connecting diode 2D2 cathode keeps an AC input of locking and disconnection protection circuit (8) again as energization
Connect alternating current wires L2The normally opened button CKA load-side of upper mounting 2. with one end of bidirectional triode thyristor in solid-state relay SSR (
10 feet), 1. the normally opened button CKA source side is connected with the other end of bidirectional triode thyristor in solid-state relay SSR (the 8th foot)
Alternating current wires L1Ac power input end (L) is connected with the other end of one end of protective tube BX, protective tube BX；Diode 2D4 is just
Pole connects diode 2D3 cathode as another AC input connection for keeping locking and disconnection protection circuit (8) that is powered
Alternating current wires L3With heating wire WR head end (A), heating wire WR tail end (B) connects alternating current wires N1With diode 2D10 anode and electricity
The 2nd gear of load-side of the 1st gear of load-side of source changeover switch DWK, transfer switch DWK connects alternating current wires N2With two
Pole pipe 2D10 cathode, the 3rd gear of load-side of transfer switch DWK is vacant to be used as power-off gear, transfer switch DWK's
Ac power input end (N) is connected after three gears of source side are in parallel；The in-phase output end of the safety control module IC
(Vo1) connection diode D6 cathode, diode D6 anode connection one end resistance R6, resistance R6 other end connection solid-state relay SSR
Middle light emitting diode cathode (the 1st foot), light emitting diode positive (the 16th foot) connects safety control module in solid-state relay SSR
Reversed-phase output (the V of ICo2)。
3. the full peace electric blanket of all-round hot Baoding effect according to claim 1, it is characterised in that: described all can pacify certainly entirely
Lock circuit (1) includes safety control module IC, resistance 3R2,3R5,3R12,3R7, capacitor 3C3 and diode D5, D6,3D7, steady
Press diode 3WD2,3WD3 and electromagnetic relay J coil, the self-lock switch (6) include normally opened button CKA and electromagnetism after
Electric appliance Jb normally opened contact and electromagnetic relay J normally opened contact, the energization keeps locking and disconnection protection circuit (8) includes
Diode 3D1 to 3D4,3D9, zener diode 3WD1 and capacitor 3C1,3C2, resistance 3R9, attached hot line 3R8 and electromagnetism relay
Device Jb coil；Heat touching line (3) is exactly the heat touching line RC of outer layer, and heating wire (5) is exactly the heating wire WR of internal layer, internal layer
Hot general character separation layer or heat leak sexual isolation layer are adapted between heating wire WR and the heat touching line RC of outer layer, such as common nylon melts fastly
Thermoplastic material belongs to the characteristic that hot general character insolated layer materials have overheat fast thawing break-through short circuit, such as semiconductor nylon thermoplastic
Material belongs to the heat leak sexual isolation layer material NTC characteristic bigger with temperature more high impedance more Low dark curient；The protective tube (7)
It is exactly the protective tube BX manufactured with the fusible link of anti-short circuit current, the transfer switch (9) is exactly that there are three gears
Transfer switch DWK, the cooler (10) are exactly diode 3D10；Circuit connecting mode: the security control mould
Two detection input (the V of block ICi1、Vi2) it is attempted by diode 3D7 anode and the one end resistance 3R2, the connection of the resistance 3R2 other end
DC power anode input terminal (the V of safety control module IC+) as the DC supply input of latching circuit (1) all can be being pacified entirely just
Extremely, one end and the capacitor 3C1 anode, zener diode 3WD1 cathode of resistance 3R9 are reconnected；The connection of diode 3D7 cathode is steady
Press two cathode of diode 3WD2,3WD3 and the one end capacitor 3C3 as the temperature-sensitive input terminal (V that all can pacify latching circuit (1) entirelyi3)；
Zener diode 3WD2 anode connects the one end resistance 3R5, and the other end of resistance 3R5 as all can pacify the upper of latching circuit (1) entirely
Input terminal (Vi5) reconnect the head end (a) that heat touches line RC, heat connection one end resistance 3R12 touching line RC tail end (b) and resistance 3R7 mono-
End is as the lower input terminal (V that all can pacify latching circuit (1) entirelyi6)；The resistance 3R12 other end connects zener diode 3WD3 anode；
The other end of resistance 3R7 simultaneously connects the anode of diode 3D2,3D3, zener diode 3WD1 anode and capacitor 3C1,3C2 cathode, electricity
Hold the DC power cathode input terminal (V of the other end of 3C3, the one end attached hot line 3R8 and safety control module IC-) as all-round
The ground terminal (GND) of the ground terminal (GND) of full peace latching circuit (1) and be powered holding locking and disconnection protection circuit (8)；Capacitor
3C1 anode connects the one end resistance 3R9 with zener diode 3WD1 cathode as being powered and keeps locking and disconnection protection circuit (8) defeated
Direct current power source voltage anode (V out+1) connection safety control module IC DC power anode input terminal (V+)；Resistance 3R9 is another
One end connects electromagnetic relay Jb coil one end and diode 3D9,3D1,3D4 cathode and capacitor 3C2 anode and keeps as being powered
Locking and the interior direct current power source voltage anode (V of disconnection protection circuit (8)+3), the electromagnetic relay Jb coil other end connects diode
3D9 anode and the attached hot line 3R8 other end；Diode 3D1 cathode connecting diode 3D2 cathode keeps locking and broken string as being powered
An AC input of circuit (8) is protected to reconnect alternating current wires L2The normally opened button CKA load-side and electromagnetism of upper mounting
The movable contact of the stationary contact of relay Jb normally opened contact, electromagnetic relay Jb normally opened contact connects electromagnetic relay J normally opened contact
Movable contact；The stationary contact of the normally opened button CKA source side and electromagnetic relay J normally opened contact is through alternating current wires L1Connection
The other end of one end of protective tube BX, protective tube BX connects ac power input end (L)；Diode 3D4 cathode connecting diode
3D3 cathode connects alternating current wires L as another AC input for keeping locking and disconnection protection circuit (8) that is powered3With
Heating wire WR head end (A), heating wire WR tail end (B) connect alternating current wires N1With diode 3D10 anode and transfer switch
The 2nd gear of load-side of the 1st gear of load-side of DWK, transfer switch DWK connects alternating current wires N2It is negative with diode 3D10
Pole, the 3rd gear of load-side of transfer switch DWK are vacant as power-off gear, the source side of transfer switch DWK three
Ac power input end (N) is connected after gear is in parallel；In-phase output end (the V of the safety control module ICo1) two poles of connection
Pipe D6 cathode, diode D6 anode and diode D5 anode are connected to electromagnetic relay J coil one end, electromagnetic relay J coil
Reversed-phase output (the V of the other end connection diode D5 cathode and safety control module ICo2)。
4. the full peace electric blanket of all-round hot Baoding effect according to claim 1, it is characterised in that: described all can pacify certainly entirely
Lock circuit (1) includes resistance 4R5,4R7,4R12, capacitor 4C3 and diode D5,4D7, zener diode 4WD2,4WD3 and electricity
Magnetic relay J coil, or in solid-state relay SSR light emitting diode series resistor R6 replace electromagnetic relay J coil and
Diode D5；The self-lock switch (6) includes normally opened button CKA and electromagnetic relay Jb normally opened contact and electromagnetic relay J
Normally opened contact, or electromagnetic relay J normally opened contact is replaced with bidirectional triode thyristor in solid-state relay SSR；The energization is protected
It holds locking and disconnection protection circuit (8) includes diode 4D1 to 4D4,4D9, zener diode 4WD1 and capacitor 4C1,4C2, electricity
Hinder 4R9, attached hot line 4R8 and electromagnetic relay Jb coil；Heat touching line (3) is exactly the heat touching line RC of outer layer, heating wire
(5) be exactly internal layer heating wire WR, adapted between the heating wire WR of internal layer and the heat touching line RC of outer layer hot general character separation layer or
Heat leak sexual isolation layer, for example, common nylon fastly melt thermoplastic material belong to hot general character insolated layer materials have overheat fast thawing break-through it is short
The characteristic on road, such as semiconductor nylon thermoplastic's material belong to heat leak sexual isolation layer material with temperature more high impedance more Low dark curient
Bigger NTC characteristic；The protective tube (7) is exactly the protective tube BX manufactured with the fusible link of anti-short circuit current, the electricity
Source changeover switch (9) is exactly the transfer switch DWK there are three gear；The cooler (10) is exactly diode 4D10；
Circuit connecting mode: one end connection diode D5 cathode of the electromagnetic relay J coil is used as all can pacify latching circuit entirely
(1) DC power anode input terminal, other end connection diode D5,4D7 anode of electromagnetic relay J coil, diode 4D7
Cathode and to connect two cathode of zener diode 4WD2,4WD3 and the one end capacitor 4C3 defeated as the temperature-sensitive that all can pacify latching circuit (1) entirely
Enter end (Vi3)；Zener diode 4WD2 anode connects the one end resistance 4R5, and the resistance 4R5 other end is used as all can pacify latching circuit entirely
(1) upper input terminal (Vi5) the hot head end (a) for touching line RC of connection, one end of one end connection resistance 4R7 of resistance 4R12 is as complete
Lower input terminal (the V of latching circuit (1) can be pacified entirelyi6) tail end (b) that heat touches line RC is reconnected, the other end connection of resistance 4R12 is steady
Press diode 4WD3 anode；The other end of resistance 4R7 simultaneously connects the anode of zener diode 4WD1, the other end of capacitor 4C3, capacitor
The anode of 4C1,4C2 cathode, the one end attached hot line 4R8 and diode 4D2,4D3 is as the ground terminal that all can pacify latching circuit (1) entirely
(GND) and the holding that is powered is latched and the ground terminal (GND) of disconnection protection circuit (8)；Capacitor 4C1 anode and zener diode 4WD1
Cathode connects the one end resistance 4R9 as the direct current power source voltage anode for keeping locking and disconnection protection circuit (8) output that is powered
(V+1) reconnect the DC power anode input terminal that all can pacify latching circuit (1) entirely；The resistance 4R9 other end connects electromagnetic relay
Jb coil one end and diode 4D9,4D1,4D4 cathode and capacitor 4C2 anode are as holding locking and the breaking protection electricity of being powered
The interior direct current power source voltage anode (V in road (8)+3), the electromagnetic relay Jb coil other end connects the attached hot line 4R8 other end and diode
4D9 anode；Diode 4D1 cathode connecting diode 4D2 cathode is kept for one of locking and disconnection protection circuit (8) as being powered
AC input reconnects alternating current wires L2The normally opened button CKA load-side of upper mounting and electromagnetic relay Jb normally opened contact
Stationary contact, the movable contact of the movable contact connection electromagnetic relay J normally opened contact of electromagnetic relay Jb normally opened contact, described is normally opened
Button CKA source side connects alternating current wires L with the stationary contact of electromagnetic relay J normally opened contact1With one end of protective tube BX, insurance
The other end of pipe BX connects ac power input end (L)；Diode 4D4 cathode connecting diode 4D3 cathode is kept as being powered
Another AC input of locking and disconnection protection circuit (8) connects alternating current wires L3With the head end (A) of heating wire WR, electricity
The tail end (B) of hot line WR connects alternating current wires N1With the 1st grade of load-side of diode 4D10 anode and transfer switch DWK
The 2nd gear of load-side of position, transfer switch DWK connects alternating current wires N1With diode 4D10 cathode, transfer switch
The 3rd gear of load-side of DWK is vacant as power-off gear, connects after three gears of source side of transfer switch DWK are in parallel
Ac power input end (N)；Or electromagnetic relay J is replaced with solid-state relay SSR, it will be luminous two in solid-state relay SSR
Pole pipe anode (the 16th foot) connection, which is powered, keeps the direct current power source voltage anode (V of locking and disconnection protection circuit (8) output+1),
Light emitting diode cathode (the 1st foot) connects resistance R6 in solid-state relay SSR, and the resistance R6 other end connects 4D7 anode, then will consolidate
One end (the 10th foot) of bidirectional triode thyristor connects alternating current wires L in state relay SSR1Source side and guarantor with normally opened button CKA
One end of dangerous pipe BX, the other end (the 8th foot) of bidirectional triode thyristor connects electromagnetic relay Jb normally opened contact in solid-state relay SSR
Movable contact.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711161547.XA CN107911879A (en) | 2017-11-21 | 2017-11-21 | Effective full peace electric blanket all can be protected forever |
| CN201711161547X | 2017-11-21 |
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| CN109451603A true CN109451603A (en) | 2019-03-08 |
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| CN201711161547.XA Pending CN107911879A (en) | 2017-11-21 | 2017-11-21 | Effective full peace electric blanket all can be protected forever |
| CN201811350129.XA Pending CN109451603A (en) | 2017-11-21 | 2018-11-05 | The full peace electric blanket of all-round hot Baoding effect |
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| CN108923382B (en) * | 2018-09-05 | 2024-02-06 | 成都彩虹电器（集团）股份有限公司 | Broken wire protector for three-core power line |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410039A (en) * | 2014-10-16 | 2015-03-11 | 刘圣平 | Safe universal control circuit |
| CN107911879A (en) * | 2017-11-21 | 2018-04-13 | 刘少华 | Effective full peace electric blanket all can be protected forever |
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- 2017-11-21 CN CN201711161547.XA patent/CN107911879A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104410039A (en) * | 2014-10-16 | 2015-03-11 | 刘圣平 | Safe universal control circuit |
| CN107911879A (en) * | 2017-11-21 | 2018-04-13 | 刘少华 | Effective full peace electric blanket all can be protected forever |
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