CN108040371A

CN108040371A - Dingan County's electric blanket out of control is protected in full blanket solar heat protection

Info

Publication number: CN108040371A
Application number: CN201711171225.3A
Authority: CN
Inventors: 刘少华
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-11-21
Filing date: 2017-11-21
Publication date: 2018-05-15
Also published as: CN109475014A

Abstract

Dingan County's electric blanket out of control, the technical solution of use are protected the present invention relates to full blanket solar heat protection：Between being connected on logical pressurize control latching circuit by temp.-sensing wire and maintain energization exclusive circuit, make maintenance latching current unimpeded, allow lock-controlled switch to connect and maintain energization exclusive circuit and the AC power of logical pressurize control latching circuit and heating wire, and maintain locking "on" position；Recycle the rapid melting when temperature is excessive of the separation layer between temp.-sensing wire and heating wire to cause the characteristic of two line contact short circuits to make overtemperature protection, allow heating wire alternating voltage to block and maintain latching current lock-controlled switch is entered unlocking off-position；Maintenance latching current is blocked necessarily to cause lock-controlled switch to power off as locking maintains current path that open fault occurs; achieve the purpose that to prevent that heat guarantor is out of control; the false peace hidden danger of conventional electric blanket is eliminated, ensures that overheating protection function consolidates effectively, it is ensured that personal safety as well as the property safety.It can be seen that the present invention, which is a kind of full blanket solar heat protection, protects Dingan County's electric blanket out of control.

Description

Dingan County's electric blanket out of control is protected in full blanket solar heat protection

Technical field

The invention belongs to a kind of flexible warmer in household electrical appliance or electric heating control field, and more particularly to one kind is normal Or can prevent full blanket heating wire from passing by the electric blanket for stablizing safety of Thermal protection (or preventing from failing) out of control under abnormality, referred to as " Dingan County's electric blanket out of control is protected in full blanket solar heat protection ".

Background technology

In cold snap, electric blanket is the preferred warming appliance of convenient warm bed, there is snugness sense when not only allowing people to sleep By, easily fall asleep, and the infrared ray of its radiation and low frequency electromagnetic field also have human body some health-care physiotherapeutics to act on and treatment wind Wet effect；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 heating Blanket is technically simple because localized hyperthermia causes fire incident more, also gives people to bring security risk and threat.As it can be seen that electric blanket Security performance is more important than heating function.Therefore it is safety first that people, which select the requirement of electric blanket, and security performance is higher It is better, it is more true better.So the highly safe of electric blanket also just becomes enforceable technical requirements in national standard.

Electric blanket technology is developed so far, its 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 control, also improved a lot to accurate automatic control, its security performance again from rough manual control, it is early to be balanced with foreign technology, I The special safety temperature control electric blanket of full line of the existing famous brand manufacturer manufacture of state is that security performance is highest on current domestic and international market Electric blanket, is all the electric blanket for meeting existing national technical standard and international technical standards.But such special safe electric blanket If controller when being in some abnormal open fault states, the failure of generally existing overheating protection function or high temperature are out of control and trigger The critical defect of fire, it is all ignored to this, therefore especially safe electric blanket not yet fully and completely eliminates safe hidden trouble.However, Any electronic product all has certain life cycle in reality, is again that can inevitably be abnormal failure during use, because Malfunction and failure or the falseness safety out of control that becomes also just can hardly be avoided.Such as：The utility model of Patent No. 200820065130.3 Patent, is most representational in the special safety temperature control electric blanket of full line etc patent, in temperature-sensitive in its Figure of description Series resistance R2 and R3 and two cathode of diode D3 and D4 separately connect friendship between line S and diode D3 and D4 anode node The protection circuit of both ends of power is flowed, open fault such as occurs, its overheating protection function will fail, and cause high temperature is out of control to trigger fire Calamity accident！As it can be seen that the special safety temperature control electric blanket of existing full line can only accomplish of a relatively high safety before this, it is impossible to accomplish Constant safe or authentic security！Illustrate that also there is ignored exception the defects of becoming false peace out of control or last technical barrier.

Fully and completely eliminate safe hidden trouble and defect, improve and solve last technical barrier, by electric blanket by " especially safe " Improve to " stablize safety, authentic security ", be to promote supply side to improve and meet consumer to needed for safe high request, and electricity The responsibility of hot blanket manufacturing and the opportunity of innovation and development.Consumer Product Safety is also that country formulates or revise mandatory national standards The key element that must be included in.So country supports to promote national standard upgrading with advanced safe practice, leads industry liter again Level.

The content of the invention

Present invention aim to design one kind to have electric heating temperature auto-control or manually regulation and control and overtemperature protection, electricity Hot line (silk) is broken flashing defencive function, complete and defencive function no matter can prevent blanket heating wire from passing by under normal and abnormality The electric blanket and its controller of stablizing safety of Thermal protection (or preventing from failing) out of control；Conventional existing electric blanket is solved in abnormal event The high temperature technical barrier out of control for triggering fire incident during barrier, is completely eliminated the security risk and defect of conventional existing electric blanket.Or Simply, present invention aim to provide a kind of " Dingan County's electric blanket out of control is protected in full blanket solar heat protection " by person.

To solve above-mentioned technical barrier, reaching above-mentioned purpose, the present invention using following three kinds (it is interrelated, belong to one Total inventive concept) technical solution：

The first technical solution of the invention：Opened including heating wire (4), half-wave power on unit (5), protective tube (7), gear temperature adjustment Close (9), it is characterised in that：Further include logical pressurize control latching circuit (1), maintain energization exclusive circuit (2), temp.-sensing wire (3), lock control Switch (6)；Two AC inputs of the logical pressurize control latching circuit (1) are separately connected across alternating current wires L₂With exchange Electric wire N₁Between, the 3rd AC input of logical pressurize control latching circuit (1) is connected to alternating current wires N₂On, lead to pressurize control Interior resistance R5 outer ends connection temp.-sensing wire (3) head end (a) of latching circuit (1)；The ground terminal of the maintenance energization exclusive circuit (2) (GND) temp.-sensing wire (3) tail end (b) is connected, maintains two AC inputs of energization exclusive circuit (2) to be separately connected across exchange Electric wire L₂With alternating current wires N₁Between, maintain the 3rd AC input of energization exclusive circuit (2) to be connected to alternating current wires N₂It On；Applied heat general character separation layer or heat leak sexual isolation layer between the temp.-sensing wire (3) and heating wire (4), such as common Buddhist nun Imperial fast molten thermoplastic belongs to the characteristic that hot general character insolated layer materials have overheat fast thawing break-through short circuit, such as semiconductor nylon Thermoplastic belongs to heat leak sexual isolation layer material with the bigger NTC characteristics of temperature more high impedance more Low dark curient；The electricity Correspondence is connected across alternating current wires L to the head end (A) and tail end (B) of hot line (4) respectively₂With alternating current wires N₁Between；The half-wave leads to The anode of electric appliance (5) is connected to alternating current wires N₁On, the cathode of half-wave power on unit (5) is connected to alternating current wires N₂On；It is described The 1st gear of load-side of gear temperature regulating switch (9) be connected to alternating current wires N₁On, its 2nd gear of load-side is connected to friendship Galvanic electricity line N₂On, its 3rd gear of load-side is vacant as power-off gear, and alternating current is connected after the three gear parallel connections of its mains side Source input terminal N；The load-side of the lock-controlled switch (6) is connected to alternating current wires L₂On, its mains side connection alternating current wires L₁With One end of protective tube (7), the other end connection ac power input end L of protective tube (7)；The firewire of the AC power is from friendship Stream power input L inputs, the zero curve of AC power are inputted from ac power input end N, or exchange AC power polarity is defeated Enter, the firewire of zero curve from ac power input end L inputs, the AC power of AC power is inputted from ac power input end N；Institute The electromagnetic force or light intensity (G) of logical pressurize control latching circuit (1) output stated directly control the on off state of lock-controlled switch (6).

As the preferred embodiment 1 of the first technical solution, the logical pressurize control latching circuit (1) include resistance 2R1, 2R2, R5, R6, capacitance 2C1 and zener diode 2WD1,2WD2, diode 2D1,2D2, D5,2D7,2D16 and electromagnetism relay Device J coils, or replace electromagnetic relay J coils and diode with light emitting diode series resistor R6 in solid-state relay SSR D5, or replace resistance 2R1 with posive temperature coefficient thermistor PTC；The lock-controlled switch (6) include normally opened button CKA and Electromagnetic relay J normally opened contacts, or replace electromagnetic relay J normally opened contacts with bidirectional triode thyristor in solid-state relay SSR；Institute The maintenance energization exclusive circuit (2) stated includes diode 2D3,2D4,2D17 and resistance 2R4；The temp.-sensing wire (3) is exactly outer Layer temp.-sensing wire RS, heating wire (4) is exactly internal layer heating wire WR, and the hot general character is adapted between outer layer temp.-sensing wire RS and internal layer heating wire WR Separation layer either heat leak sexual isolation layer or insulating barrier layer, for example, common nylon melt soon thermoplastic belong to the hot general character every Layer material has the characteristic of overheat fast thawing break-through short circuit, such as semiconductor nylon thermoplastic's material belongs to heat leak sexual isolation layer material Material is with the bigger NTC characteristics of temperature more high impedance more Low dark curient；The half-wave power on unit (5) is exactly diode 2D18, institute The protective tube (7) stated is exactly the protective tube BX manufactured with the fusible link of anti-short circuit current flow, and the gear temperature regulating switch (9) is exactly There is the gear temperature regulating switch DWK of three gears；Circuit connecting mode：The diode 2D1 cathodes are as logical pressurize control self-locking One AC input of circuit (1) is connected to alternating current wires L₂On the load-side and electromagnetism of the normally opened button CKA that mount The load-side of relay J normally opened contacts, diode 2D2 cathodes are defeated as another alternating current of logical pressurize control latching circuit (1) Enter end and be connected to alternating current wires N₁On the 1st gear of load-side of gear temperature regulating switch DWK that mounts, diode 2D16 cathodes make Alternating current wires N is connected to lead to the 3rd AC input of pressurize control latching circuit (1)₂On the gear temperature regulating switch that mounts The 2nd gear of load-side of DWK, diode 2D1,2D2,2D16 anode and capacitance 2C1 cathodes and contact are used as logical pressurize Control the direct current power source voltage cathode (V of latching circuit (1) output₊₁), reconnect the one of zener diode 2WD2 anode and resistance 2R1 End, the other end and zener diode 2WD1 anode tie points (V of resistance 2R1_o1) reconnect diode D5 anode and electromagnetism relay One end of device J coils, the other end and diode D5 cathodes and contact (V of electromagnetic relay J coils_o3) reconnect 2D7 cathodes；Or Person replaces electromagnetic relay J with solid-state relay SSR, light emitting diode cathode in solid-state relay SSR (16 foot) is connected steady Press diode 2WD1 anode and resistance 2R1 tie points (V_o1), light emitting diode anode (1 foot) connection electricity in solid-state relay SSR Hinder R6, resistance R6 other ends connection diode 2D7 cathodes (V_o3), by one end the (the 10th of bidirectional triode thyristor in solid-state relay SSR Foot) the normally opened button CKA of connection load-side, the other end (the 8th foot) connection of bidirectional triode thyristor is normally opened in solid-state relay SSR presses The mains side of button CKA；Diode 2D7 anode connect zener diode 2WD2 cathodes and resistance 2R2 one end, the resistance 2R2 other ends Connect zener diode 2WD1 cathodes and the inner of capacitance 2C1 anode and resistance R5, the outer end connection outer layer temperature-sensitive of resistance R5 The head end (a) of line RS, the outer end of tail end (b) the connection resistance 2R4 of outer layer temp.-sensing wire RS is as maintenance energization exclusive circuit (2) Ground terminal (GND), inner connection diode 2D3,2D4,2D17 cathode of resistance 2R4 is as in maintenance energization exclusive circuit (2) DC voltage anode (V_-1), diode 2D3 anode are connected to as an AC input of maintenance energization exclusive circuit (2) Alternating current wires L₂On, diode 2D4 anode are connected to as another AC input of maintenance energization exclusive circuit (2) Alternating current wires N₁On the 1st gear of load-side of gear temperature regulating switch DWK that mounts, diode 2D17 anode are as maintaining to be powered 3rd AC input of exclusive circuit (2) is connected to alternating current wires N₂On the load of gear temperature regulating switch DWK that mounts The 2nd gear of side；Diode 2D18 cathodes as half-wave power on unit (5) are also connected to alternating current wires N₂On the gear tune that mounts The 2nd gear of load-side of temperature switch DWK, diode 2D18 anode are connected to alternating current wires N₁On the internal layer heating wire WR that mounts Tail end (B) and gear temperature regulating switch DWK the 1st gear of load-side；The 3rd gear of load-side of gear temperature regulating switch DWK is vacant As power-off gear, ac power input end (N) is connected after three gear parallel connections of mains side of gear temperature regulating switch DWK；It is described The head end (A) of internal layer heating wire WR be connected to alternating current wires L₂On the diode 2D3 anode that mount and normally opened button CKA The load-side of load-side and electromagnetic relay J normally opened contacts；The mains side and electromagnetic relay J of the normally opened button CKA is normal The mains side of contact is opened through alternating current wires L₁Connect one end of protective tube BX, the other end connection AC power input of protective tube BX Hold (L)；The firewire of the AC power is inputted from ac power input end L, the zero curve of AC power is inputted from AC power N inputs are held, or exchange the input of AC power polarity, the zero curve of AC power is from ac power input end L inputs, AC power Firewire from ac power input end N input；The electromagnetic force that electromagnetic relay J coils export when being powered directly controls electromagnetism relay Device J normally opened contacts are attracted the AC power for connecting heating wire WR, or by light (G) conduct energization hot line in solid-state relay SSR The AC power of WR.

As the preferred embodiment 2 of the first technical solution, the logical pressurize control latching circuit (1) include resistance 3R1, 3R2,3R3, R5, R6, capacitance 3C1 and zener diode 3WD1,3WD2,3WD3, diode 3D1,3D2,3D6,3D7, D5, 3D16, triode T1, T2 and electromagnetic relay J coils, or with light emitting diode series resistor R6 in solid-state relay SSR Replace electromagnetic relay J coils and diode D5；It is normal that the lock-controlled switch (6) includes normally opened button CKA and electromagnetic relay J Contact is opened, either replaces electromagnetic relay J normally opened contacts or with positive temperature system with bidirectional triode thyristor in solid-state relay SSR Number thermistor PTC replaces resistance 3R3；The maintenance energization exclusive circuit (2) includes diode 3D3,3D4,3D17 and electricity Hinder 3R4；The temp.-sensing wire (3) is exactly outer layer temp.-sensing wire RS, and heating wire (4) is exactly internal layer heating wire WR, outer layer temp.-sensing wire RS Hot general character separation layer either heat leak sexual isolation layer or insulating barrier layer, such as common Buddhist nun are adapted between internal layer heating wire WR Imperial fast molten thermoplastic belongs to the characteristic that hot general character insolated layer materials have overheat fast thawing break-through short circuit, such as semiconductor nylon Thermoplastic belongs to heat leak sexual isolation layer material with the bigger NTC characteristics of temperature more high impedance more Low dark curient；Described half Ripple power on unit (5) is exactly diode 3D18, and the protective tube (7) is exactly the protective tube manufactured with the fusible link of anti-short circuit current flow BX, the gear temperature regulating switch (9) are exactly the gear temperature regulating switch DWK for having three gears；Circuit connecting mode：Described two Pole pipe 3D1 cathodes are connected to alternating current wires L as an AC input of logical pressurize control latching circuit (1)₂On mount The load-side of normally opened button CKA and the load-side of electromagnetic relay J normally opened contacts, diode 3D2 cathodes are as logical pressurize control Another AC input of latching circuit (1) is connected to alternating current wires N₁On mount gear temperature regulating switch DWK it is negative The 1st gear of side is carried, diode 3D16 cathodes are connected to exchange as the 3rd AC input of logical pressurize control latching circuit (1) Electric wire N₂On the 2nd gear of load-side of gear temperature regulating switch DWK that mounts, diode 3D1,3D2,3D16 anode and Direct current power source voltage cathode (the V of capacitance 3C1 cathodes and contact as logical pressurize control latching circuit (1) output₊₁), reconnect voltage stabilizing One end of diode 3WD1 anode and resistance 3R1, the other end connection zener diode 3WD3 anode and triode T1 of resistance 3R1 Emitter, triode T1 base stages connection diode 3D7 cathodes, diode 3D7 anode connection zener diode 3WD1 cathodes and electricity One end of 3R3 is hindered, the other end connection zener diode 3WD2 anode and diode 3D6 cathodes, diode 3D6 of resistance 3R3 are born One end of pole connecting triode T2 base stages, triode T2 emitters connection zener diode 3WD3 cathodes and resistance 3R2, resistance The other end of 3R2 connects the inner of zener diode 3WD2 cathodes, capacitance 3C1 anode and resistance R5, the outer end connection of resistance R5 Outer layer temp.-sensing wire RS head ends (a), triode T1 collectors (V_o1) connection connection diode D5 anode and electromagnetic relay J coils One end, the other end and diode D5 cathodes of electromagnetic relay J coils are attempted by triode T2 collectors (V_o3), or use solid-state Relay SSR replaces electromagnetic relay J, by light emitting diode cathode in solid-state relay SSR (16 foot) connecting triode T1 collection Electrode (V_o1), light emitting diode anode (1 foot) connection resistance R6, resistance R6 other end connecting triodes in solid-state relay SSR T2 collectors (V_o3), one end (the 10th foot) of bidirectional triode thyristor in solid-state relay SSR is connected to the load of normally opened button CKA Side, the other end (the 8th foot) of bidirectional triode thyristor connects the mains side of normally opened button CKA in solid-state relay SSR；Outer layer temp.-sensing wire As the ground terminal (GND) for maintaining energization exclusive circuit (2), resistance 3R4's is interior for the outer end of tail end (b) the connection resistance 3R4 of RS End connection diode 3D3,3D4,3D17 cathode is as maintenance energization exclusive circuit (2) interior DC voltage anode (V_-1), diode 3D3 anode are connected to alternating current wires L as an AC input of maintenance energization exclusive circuit (2)₂On, diode 3D4 anode are connected to alternating current wires N as another AC input of maintenance energization exclusive circuit (2)₁On mount The 1st gear of load-side of gear temperature regulating switch DWK, diode 3D17 anode are as the 3rd friendship for maintaining energization exclusive circuit (2) Galvanic electricity input terminal is connected to alternating current wires N₂On the 2nd gear of load-side of gear temperature regulating switch DWK that mounts；Lead to as half-wave The diode 3D18 cathodes of electric appliance (5) are also connected to alternating current wires N₂On the load-side the 2nd of gear temperature regulating switch DWK that mounts Gear, diode 3D18 anode are connected to alternating current wires N₁On the tail end (B) of internal layer heating wire WR that mounts and gear temperature adjustment Switch the 1st gear of load-side of DWK；The 3rd gear of load-side of gear temperature regulating switch DWK is vacant as power-off gear, gear tune Ac power input end (N) is connected after three gear parallel connections of mains side of temperature switch DWK；The head end of the internal layer heating wire WR (A) it is connected to alternating current wires L₂On the load-side and electromagnetic relay J of the diode 3D3 anode that mount and normally opened button CKA The load-side of normally opened contact；The mains side of the normally opened button CKA is with the mains side of electromagnetic relay J normally opened contacts through exchanging Electric wire L₁Connect one end of protective tube BX, the other end connection ac power input end (L) of protective tube BX；The AC power Firewire from ac power input end L input, AC power zero curve from ac power input end N input, or exchange exchange Electric power polarity inputs, and the firewire of zero curve from ac power input end L inputs, the AC power of AC power is inputted from AC power Hold N inputs；The electromagnetic force that electromagnetic relay J coils export when being powered directly controls electromagnetic relay J normally opened contacts and is attracted connection The AC power of heating wire WR, or the AC power by light (G) conduct energization hot line WR in solid-state relay SSR.

As the preferred embodiment 3 of the first technical solution, the logical pressurize control latching circuit (1) includes security control Module I C, resistance 4R1,4R2,4R3, R5, R6, capacitance 4C1,4C2 and zener diode 4WD1,4WD2, diode 4D1,4D2, D5, D6,4D16 and electromagnetic relay J coils, or replace electricity with light emitting diode series resistor R6 in solid-state relay SSR Magnetic relay J coils and diode D5, or replace resistance 4R2, wherein security control mould with posive temperature coefficient thermistor PTC Block IC uses anti-failure or prevents safety control circuit out of control etc or the circuit with its function equivalent, such as model RAH688 Anti- circuit chip out of control just belong to one of safety control circuit；The lock-controlled switch (6) includes normally opened button CKA and electromagnetism Relay J normally opened contacts, or replace electromagnetic relay J normally opened contacts with bidirectional triode thyristor in solid-state relay SSR；Described Energization exclusive circuit (2) is maintained to include diode 4D3,4D4,4D17 and resistance 4R4；The temp.-sensing wire (3) is exactly outer layer sense Warm line RS, heating wire (4) are exactly internal layer heating wire WR, and adapting to the hot general character between outer layer temp.-sensing wire RS and internal layer heating wire WR isolates Layer or heat leak sexual isolation layer, such as common nylon melt thermoplastic and belong to hot general character insolated layer materials with overheat fast thawing soon The characteristic of break-through short circuit, for example, semiconductor nylon thermoplastic's material belong to heat leak sexual isolation layer material with temperature more high impedance more The bigger NTC characteristics of Low dark curient；The half-wave power on unit (5) is exactly diode 4D18, and the protective tube (7) is exactly with anti- The protective tube BX of the fusible link manufacture of short circuit current flow, the gear temperature regulating switch (9) is exactly the gear temperature adjustment for having three gears Switch DWK；Circuit connecting mode：The diode 4D1 cathodes are defeated as an alternating current of logical pressurize control latching circuit (1) Enter end and be connected to alternating current wires L₂On the load-side of normally opened button CKA that mounts and the load of electromagnetic relay J normally opened contacts Side, diode 4D2 cathodes are connected to alternating current wires N as another AC input of logical pressurize control latching circuit (1)₁It The 1st gear of load-side of the gear temperature regulating switch DWK of upper mounting, diode 3D16 cathodes are as logical pressurize control latching circuit (1) The 3rd AC input be connected to alternating current wires N₂On the 2nd gear of load-side of gear temperature regulating switch DWK that mounts；Institute Diode 4D1,4D2,4D16 anode and capacitance 4C1 cathodes and contact stated are straight as logical pressurize control latching circuit (1) output Galvanic electricity source positive polarity (V₊₁), zener diode 4WD1 anode and one end of resistance 4R2 are reconnected, the other end of resistance 4R2 connects Meet the DC supply input positive terminal (V of zener diode 4WD2 anode, capacitance 4C2 cathodes and safety control module IC₊), safety DC supply input negative pole end (the V of control module IC_-) connection zener diode 4WD2 cathodes, capacitance 4C1,4C2 anode and electricity Hinder 4R1 one end and the inner direct current power source voltage cathode (V as logical pressurize control latching circuit (1) output of resistance R5₊₃), resistance The head end (a) of the outer end connection outer layer temp.-sensing wire RS of R5, the resistance 4R1 other ends and resistance 4R3 one end are attempted by security control mould Two input terminal (the V of block IC_i1、V_i2), resistance 4R3 other ends connection zener diode 4WD1 cathodes, the safety control module In-phase output end (the V of IC_o1) connection diode D6 anode, diode D6 cathodes and diode D5 cathodes are connected to electromagnetic relay The reversed-phase output of J coils one end, electromagnetic relay J coils other end connection diode D5 anode and safety control module IC (V_o2)；Or electromagnetic relay J is replaced with solid-state relay SSR, by light emitting diode cathode in solid-state relay SSR (16 foot) Connect the reversed-phase output (V of safety control module IC_o2), light emitting diode anode (1 foot) connection resistance in solid-state relay SSR R6, resistance the R6 other end connect diode D6 cathodes, the in-phase output end of diode D6 anode connection safety control module IC (V_o1), by the mains side of the normally opened button CKA of one end (the 8th foot) connection of bidirectional triode thyristor in solid-state relay SSR, solid-state relay The other end (the 10th foot) of bidirectional triode thyristor connects the load-side of normally opened button CKA in device SSR；The tail end of outer layer temp.-sensing wire RS (b) outer end of resistance 4R4 is connected as the ground terminal (GND) for maintaining energization exclusive circuit (2), the inner and union II of resistance 4R4 The cathode of pole pipe 4D3,4D4,4D17 are as the DC voltage anode (V for maintaining energization exclusive circuit (2)_-1), diode 4D3 anode Alternating current wires L is connected to as an AC input of energization exclusive circuit (2) is maintained₂On, diode 4D4 anode are made To maintain another AC input of energization exclusive circuit (2) to be connected to alternating current wires N₁On the gear temperature adjustment that mounts open The 1st gear of load-side of DWK is closed, diode 3D17 anode are as the 3rd AC input for maintaining energization exclusive circuit (2) It is connected to alternating current wires N₂On the 2nd gear of load-side of gear temperature regulating switch DWK that mounts；As half-wave power on unit (5) Diode 4D18 cathodes are also connected to alternating current wires N₂On the 2nd gear of load-side of gear temperature regulating switch DWK that mounts, two poles Pipe 4D18 anode are connected to alternating current wires N₁On the tail end (B) of internal layer heating wire WR that mounts and gear temperature regulating switch DWK The 1st gear of load-side, the 3rd gear of load-side of gear temperature regulating switch DWK are vacant as power-off gear, gear temperature regulating switch DWK Three gear parallel connections of mains side after connect ac power input end (N)；The head end (A) of the internal layer heating wire WR is connected to Alternating current wires L₂On the diode 4D3 anode that mount and normally opened button CKA load-side and electromagnetic relay J normally opened contacts Load-side；The mains side of the normally opened button CKA and the mains side of electromagnetic relay J normally opened contacts are through alternating current wires L₁Connection One end of protective tube BX, the other end connection ac power input end (L) of protective tube BX；The firewire of the AC power is from friendship Stream power input L inputs, the zero curve of AC power are inputted from ac power input end N, or exchange AC power polarity is defeated Enter, the firewire of zero curve from ac power input end L inputs, the AC power of AC power is inputted from ac power input end N；Electricity The electromagnetic force that magnetic relay J coils export when being powered directly controls electromagnetic relay J normally opened contacts and is attracted connection heating wire WR's AC power, or the AC power by light (G) conduct energization hot line WR in solid-state relay SSR.

Second of technical solution of the invention：Including heating wire (4), protective tube BX, power switch DK, electric heating temperature control electricity Road (10), it is characterised in that：Further include logical pressurize control latching circuit (1), maintain energization exclusive circuit (2), temp.-sensing wire (3), lock Control switch (6), disconnection protection circuit (8)；The logical pressurize control latching circuit (1), maintain energization exclusive circuit (2), temperature-sensitive Line (3) is using the logical pressurize control latching circuit (1) described in the first technical solution and its preferred embodiment, maintenance energization locking electricity Road (2), the technical solution of temp.-sensing wire (3)；It is normally opened tactile that the lock-controlled switch (6) includes normally opened button CKA and electromagnetic relay J Point and electromagnetic relay Jb left sides normally opened contact；The disconnection protection circuit (8) includes diode 5D11 to 5D14,5D9, electricity Hold 5C5, electromagnetic relay Jb；Circuit connecting mode：Two AC inputs of the logical pressurize control latching circuit (1) point Cocking is in alternating current wires L₅With alternating current wires N₁Between, lead to the interior resistance R5 outer ends connection temp.-sensing wire of pressurize control latching circuit (1) (3) head end (a), leads to the direct current power source voltage cathode (V of pressurize control latching circuit (1) output₊₁) connection electric heating temperature-control circuit (10) DC supply input positive terminal, leads to the DC voltage electrode (V of pressurize control latching circuit (1) output₊₃) connection electric heating temperature Spend control circuit (10) interior signal input part (V_in), ground terminal (GND) the connection temperature-sensitive of the maintenance energization exclusive circuit (2) The ground terminal (GND) of line (3) tail end (b) and electric heating temperature-control circuit (10), maintains two exchanges of energization exclusive circuit (2) Electrical input is also separately connected across alternating current wires L₅With alternating current wires N₁Between；Between the temp.-sensing wire (3) and heating wire (4) Applied heat general character separation layer or heat leak sexual isolation layer, such as common nylon melt thermoplastic and belong to hot general character separation layer material soon Characteristic of the material with overheat fast thawing break-through short circuit, such as semiconductor nylon thermoplastic's material belong to heat leak sexual isolation layer material and have The bigger NTC characteristics of temperature more high impedance more Low dark curient；The head end (A) and tail end (B) of the heating wire (4) respectively correspond to across It is connected on alternating current wires L₃With alternating current wires N₂Between；One friendship of the interior temperature control performer of electric heating temperature-control circuit (10) Flow end connection alternating current wires N₁, another exchange end connection alternating current wires N₂；The load-side of the power switch DK is connected to exchange Electric wire N₁On, its mains side connection ac power input end N；The mains side of normally opened button CKA in the lock-controlled switch (6) Alternating current wires L is connected with the mains side of electromagnetic relay J normally opened contacts₁With one end of protective tube BX, the other end of protective tube BX Ac power input end L is connected, the load-side of normally opened button CKA is through alternating current wires L in lock-controlled switch (6)₂Connect breaking protection The interior diode 5D11 cathodes of circuit (8) and diode 5D12 anode and the left side normally opened contact of electromagnetic relay Jb and/or the right The mains side of normally opened contact, the load-side connection electromagnetic relay J normally opened contacts of left side normally opened contact in electromagnetic relay Jb Load-side, the load-side of electromagnetic relay Jb the right normally opened contact are connected to alternating current wires L₅On, for electromagnetic relay Jb Middle two groups of normally opened contacts in the left side and the right only select one of which, the direct short circuit in both ends of no another group of normally opened contact Connection；One end of the electromagnetic relay Jb coils simultaneously connects diode 5D11,5D14,5D9 anode and capacitance 5C5 cathode conducts High-end (the V of DC voltage of disconnection protection circuit (8)₊₅), the other end of electromagnetic relay Jb coils and connect diode 5D12, DC voltage low side (the V of 5D13,5D9 cathode and capacitance 5C5 anode as disconnection protection circuit (8)₊₄)；Alternating current wires L₃One End connection diode 5D14 cathodes and diode 5D13 anode, alternating current wires L₃The other end connection internal layer heating wire (4) head Hold (A)；The firewire of the AC power is inputted from ac power input end L, the zero curve of AC power is inputted from AC power N inputs are held, or exchange the input of AC power polarity, the zero curve of AC power is from ac power input end L inputs, AC power Firewire from ac power input end N input；The electromagnetic force that electromagnetic relay J coils export when being powered directly controls electromagnetism relay Device J normally opened contacts are attracted the AC power for connecting heating wire WR；The electromagnetic force that electromagnetic relay Jb coils export when being powered is direct The left side normally opened contact of electromagnetic relay Jb and/or the right normally opened contact is controlled to be attracted and connect logical pressurize control latching circuit (1) and dimension Hold the AC power of energization exclusive circuit (2).

The third technical solution of the invention：Including heating wire (4), protective tube BX, power switch DK, electric heating temperature control electricity Road (10), it is characterised in that：Further include logical pressurize control latching circuit (1), maintain energization exclusive circuit (2), temp.-sensing wire (3), lock Control switch (6), disconnection protection circuit (8)；The logical pressurize control latching circuit (1), maintain energization exclusive circuit (2), temperature-sensitive Line (3) is using the logical pressurize control latching circuit (1) described in the first technical solution and its preferred embodiment, maintenance energization locking electricity Road (2), the technical solution of temp.-sensing wire (3)；It is normally opened tactile that the lock-controlled switch (6) includes normally opened button CKA and electromagnetic relay J Point；The disconnection protection circuit (8) include diode 6D11 to 6D14, capacitance 6C5, resistance 6R8, photoelectrical coupler 6RD with And curtage mutual inductor 6HGQ；Circuit connecting mode：Two alternating currents input of the logical pressurize control latching circuit (1) End is separately connected across alternating current wires L₅With alternating current wires N₁Between, lead to the interior resistance R5 outer ends connection temperature-sensitive of pressurize control latching circuit (1) Line (3) head end (a), leads to the direct current power source voltage cathode (V of pressurize control latching circuit (1) output₊₁) connection electric heating temperature control electricity The DC supply input positive terminal on road (10), leads to the DC voltage electrode (V of pressurize control latching circuit (1) output₊₃) connection electric heating Interior signal input part (the V of temperature-control circuit (10)_in), ground terminal (GND) the connection sense of the maintenance energization exclusive circuit (2) The ground terminal (GND) of warm line (3) tail end (b) and electric heating temperature-control circuit (10), maintains two friendships of energization exclusive circuit (2) Galvanic electricity input terminal is also separately connected across alternating current wires L₅With alternating current wires N₁Between；The temp.-sensing wire (3) and heating wire (4) it Between applied heat general character separation layer or heat leak sexual isolation layer, such as common nylon soon melt thermoplastic belong to hot general character separation layer Material has the characteristic of overheat fast thawing break-through short circuit, such as semiconductor nylon thermoplastic's material belongs to heat leak sexual isolation layer material tool There are the bigger NTC characteristics of temperature more high impedance more Low dark curient；The head end (A) and tail end (B) of the heating wire (4) correspond to respectively It is connected across alternating current wires L₃With alternating current wires N₂Between；The one of the interior temperature control performer of electric heating temperature-control circuit (10) Exchange end connection alternating current wires N₁, another exchange end connection alternating current wires N₂；The load-side of the power switch DK is connected to friendship Galvanic electricity line N₁On, the mains side connection ac power input end N of power switch DK；It is normally opened in the lock-controlled switch (6) to press The mains side of button CKA connects alternating current wires L with the mains side of electromagnetic relay J normally opened contacts₁With one end of protective tube BX, insurance The other end connection ac power input end L of pipe BX, the load-side and electromagnetic relay J of normally opened button CKA in lock-controlled switch (6) The load-side tie point of normally opened contact is through alternating current wires L₂Reconnect photosensitive in disconnection protection circuit (8) interior photoelectrical coupler 6GD Bidirectional triode thyristor one end and curtage mutual inductor 6HGQ armature windings one end, it is photosensitive two-way controllable in photoelectrical coupler 6GD Silicon one end connection alternating current wires L₅, the curtage mutual inductor 6HGQ armature windings other end is through alternating current wires L₃Connect internal layer electricity The head end (A) of hot line (4), secondary windings n2 one end connection diode 6D11 cathodes of curtage mutual inductor 6HGQ and two poles Pipe 6D12 anode, secondary windings n2 other ends connection diode 6D14 cathodes and diode 6D13 anode, diode 6D11,6D14 Anode and capacitance 6C5 cathodes and DC voltage high-end (V of the contact as disconnection protection circuit (8)₊₅) reconnect resistance 6R8 mono- End, the resistance 6R8 other ends connect light emitting diode cathode in photoelectrical coupler 6GD, and light emitting diode is born in photoelectrical coupler 6GD Pole connects the DC voltage low side (V of diode 6D12,6D13 cathode and capacitance 6C3 anode as disconnection protection circuit (8)₊₄)； The firewire of the AC power is inputted from ac power input end L, the zero curve of AC power is defeated from ac power input end N Enter, or exchange the input of AC power polarity, the zero curve of AC power is from ac power input end L inputs, the fire of AC power Line is inputted from ac power input end N；The electromagnetic force that electromagnetic relay J coils export when being powered directly controls electromagnetic relay J Normally opened contact is attracted the AC power for connecting heating wire WR；The light intensity (G) of light emitting diode energization transmitting in photoelectrical coupler 6GD Directly control the logical pressurize control latching circuit (1) of bidirectional triode thyristor conducting in photoelectrical coupler 6GD and maintain energization exclusive circuit (2) AC power.

Beneficial effects of the present invention and technical advantage：

Overtemperature protection control can be not only carried out in normal work, prevents heating wire (silk) fracture from dodging for controller for electric-heated blanket Arc (arcing) ignites fabric of electric heat blanket, disconnects AC power, avoids that fire incident occurs, and in overtemperature 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 overtemperature protection control System, ensures to disconnect AC power, can truly ensure personal safety as well as the property safety all the time.The present invention can also consolidating as other electric heating elements Pacify controller.

In other words, the present invention thoroughly solve conventional electric blanket cannot anti-abnormal failure technical barrier out of control, disappear completely Except conventional electric blanket has the hidden danger and defect of false peace, perfection realizes the full blanket circuit mistake under various normal or abnormalities Thermal protection control function never fails, or life cycle management is never out of control, can truly ensure personal safety as well as the property safety all the time.As it can be seen that The present invention is that Dingan County's electric blanket out of control, its full blanket circuit superior function for stablizing safety never out of control are protected in a kind of full blanket solar heat protection There is wider versatility with control principle, can be applied to it is in need to electric heating element carry out security control technology lead Domain.Present invention ensure that the security of the lives and property of users, is also beneficial to public safety certainly, have important practical value and Social benefit, when promising to be the national compulsory technical standard revision upgrading of electric blanket field and safety electric control field Required necessary patent, also has any opportunity for national standard of the China in electric blanket field and safety electric control field and leads the world Standard upgrade.

Brief description of the drawings

Fig. 1 is the structural framing figure of the first technical solution of the invention；

Fig. 2 is 1 circuit diagram of specific embodiment of the first technical solution of the invention；

Fig. 3 is 2 circuit diagram of specific embodiment of the first technical solution of the invention；

Fig. 4 is 3 circuit diagram of specific embodiment of the first technical solution of the invention；

Fig. 5 is the physical circuit schematic diagram of second of technical solution of the invention；

Fig. 6 is the physical circuit schematic diagram of the third technical solution of the invention.

In Fig. 1：(1) be maintenance energization exclusive circuit for logical pressurize control latching circuit, (2), (3) are temp.-sensing wire, (4) are Heating wire, (5) are half-wave power on unit, (6) are lock-controlled switch, (7) are protective tube, (9) are gear temperature regulating switch.

Embodiment

Below with reference to the embodiments and with reference to the accompanying drawing technical scheme is described in further detail.

First, to the present invention, the first technical solution illustrates：

The structural framing figure of the first of the invention technical solution, as shown in Figure 1, wherein (1) be logical pressurize control latching circuit, (2) be to maintain energization exclusive circuit, (3) be temp.-sensing wire, (4) are heating wire, (5) are half-wave power on unit, (6) be lock-controlled switch, (7) be protective tube, (9) be gear temperature regulating switch.Two AC inputs of the logical pressurize control latching circuit (1) separate It is connected across alternating current wires L₂With alternating current wires N₁Between, the 3rd AC input of logical pressurize control latching circuit (1) is connected to friendship Galvanic electricity line N₂On, lead to interior resistance R5 outer ends connection temp.-sensing wire (3) head end (a) of pressurize control latching circuit (1)；The maintenance is led to Ground terminal (GND) connection temp.-sensing wire (3) tail end (b) of electric locking circuit (2), maintains two exchanges of energization exclusive circuit (2) Electrical input is separately connected across alternating current wires L₂With alternating current wires N₁Between, maintain the 3rd alternating current of energization exclusive circuit (2) defeated Enter end and be connected to alternating current wires N₂On；Applied heat general character separation layer or heat between the temp.-sensing wire (3) and heating wire (4) Sexual isolation layer is leaked, such as common nylon melts thermoplastic and belongs to hot general character insolated layer materials with the break-through short circuit of overheat fast thawing soon Characteristic, such as semiconductor nylon thermoplastic's material belong to heat leak sexual isolation layer material with temperature more high impedance more Low dark curient more Big NTC characteristics；Correspondence is connected across alternating current wires L to the head end (A) and tail end (B) of the heating wire (4) respectively₂And alternating current Line N₁Between；The anode of the half-wave power on unit (5) is connected to alternating current wires N₁On, the cathode connection of half-wave power on unit (5) In alternating current wires N₂On；The 1st gear of load-side of the gear temperature regulating switch (9) is connected to alternating current wires N₁On, it is negative Carry the 2nd gear of side and be connected to alternating current wires N₂On, its 3rd gear of load-side is vacant as power-off gear, its mains side three Ac power input end N is connected after gear parallel connection；The load-side of the lock-controlled switch (6) is connected to alternating current wires L₂On, its Mains side connection alternating current wires L₁With one end of protective tube (7), the other end connection ac power input end L of protective tube (7)；Institute The firewire for the AC power stated is inputted from ac power input end L, the zero curve of AC power is inputted from ac power input end N, Or exchange the input of AC power polarity, the zero curve of AC power from ac power input end L inputs, AC power firewire from Ac power input end N is inputted；The electromagnetic force or light intensity (G) of logical pressurize control latching circuit (1) output directly control lock The on off state of control switch (6).

The first technical solution operation principle of the invention is as follows：

Work normally principle：When needing electric blanket input fever work, AC power input both ends (L, N) in Fig. 1 After inputting suitable AC power, gear temperature regulating switch (9) is first placed in the 1st grade or the 2nd grade, then clicks (or startup) lock Control switch (6) in normally opened button CKA, allow heating wire (4) and logical pressurize control latching circuit (1) and maintenance energization exclusive circuit (2) AC power of input is connected, at the beginning of powering on, heating wire (4) makes temp.-sensing wire (3) institute temperature-sensitive degree relatively low, because separation layer is in State of insulation, lead to pressurize control latching circuit (1) by the convert alternating current of input be direct current after, from R5 outer ends output direct current Stream smoothly flows to another alternating current wires (L after temp.-sensing wire (3) enters maintenance energization exclusive circuit (2) processing₂Or N₁), then Maintain energization exclusive circuit (2) to allow logical pressurize control latching circuit (1) to maintain locking and be attracted "on" position, lead to pressurize control self-locking electricity AC power is connected in electromagnetic force or light intensity (G) the control lock-controlled switch (6) of road (1) output terminal, makes maintenance energization exclusive circuit (2) and logical pressurize control latching circuit (1) and heating wire (4) are continuously maintained at locking "on" position, and heating wire (4) is persistently powered Fever, if the heat and temperature drift of electric blanket, adjusts gear temperature regulating switch (9) manually, and wherein DWK switches are adjusted by the 1st grade To the 2nd grade, the interior diode 2D18 or 3D18 or 4D18 of half-wave power on unit (5) devotes oneself to work, and at this time, positive can only be powered, reversely Cut-off cannot be powered, and electrical power reduces half in heating wire (4), and the temperature of electric blanket will reduce very much.Stop to electric blanket Only generate heat, adjust gear temperature regulating switch (9) manually, wherein DWK switches are placed in the 3rd grade, alternating current has just been fully disconnected, has tieed up Hold energization exclusive circuit (2) and logical pressurize control latching circuit (1) just loses maintenance electric current completely, lock-controlled switch (6) is placed in disconnected The unlocking condition of switch power supply, at this time, if again manually adjust gear temperature regulating switch (9), by wherein DWK switch be placed in the 1st grade or 2nd grade, lock-controlled switch (6) is self-locking in the unlocking condition of power-off by logical pressurize control latching circuit (1) still dead electricity all the time.If think electricity Hot blanket is once again powered up fever, it is necessary to press the normally opened button CKA in lock-controlled switch (6) again, allows logical pressurize control latching circuit (1) Lock-controlled switch (6) is locked in lasting locking "on" position again.

Overtemperature protection principle：When heating wire (4) hot-spot in electric blanket, temperature rise is higher than normal range (NR), causes temp.-sensing wire (3) part between heating wire (4) (such as at its head end A-a or at tail end B-b or middle somewhere) the fast fast thawing of insolated layer materials Change break-through short circuit or leak electricity larger (impedance diminishes), allow in heating wire (4) alternating voltage to be directly entered by temp.-sensing wire (3) logical The interior resistance R5 of pressurize control latching circuit (1) and the ground terminal (GND) for maintaining energization exclusive circuit (2), when the friendship for entering resistance R5 Galvanic electricity makes the interior direct current site V of logical pressurize control latching circuit (1) when polarity is positive A → a or B → b₊₃Current potential and DC power supply Voltage V₊₁Remain basically stable, when the alternating current for entering resistance R5 is when polarity be anti-a → A or b → B, make to lead to pressurize control latching circuit (1) interior direct current site V₊₃Current potential is than direct current power source voltage V₊₁Less than it is normal when many times, but due to leading to pressurize control latching circuit (1) pressure stabilization function of each zener diode in, the former high low potential in electromagnetic relay J coils both ends is inverted, or cuts triode Only, or triggering safety control module IC states are overturn, therefore, by heating wire (4) no matter the polarity of the alternating current into resistance R5 It is that just or instead, electromagnetic relay J coil latching currents can be blocked, forces the release of electromagnetic relay J normally opened contacts to disconnect exchange Power supply；Maintain energization exclusive circuit (2) and logical pressurize control latching circuit (1) just to lose maintenance electric current completely, fed back through dead electricity, will Lock-controlled switch (6) is self-locking in the unlocking condition of power-off all the time, and heating wire (4) cannot be powered all the time.Then, it is achieved that to electric heating The overtemperature protection of blanket.

Prevent principle out of control：Because electric blanket normally generate heat needed for AC power, it is necessary to by logical pressurize control latching circuit (1) and energization exclusive circuit (2) and temp.-sensing wire (3) are maintained as electromagnetic relay J coils or hair in logical pressurize control latching circuit (1) The unimpeded DC current of optical diode, makes the electromagnetic force or light intensity (G) control lock-controlled switch of logical pressurize control latching circuit (1) output terminal (6) "on" position is persistently latched in, could maintain to connect AC power.When logical pressurize control latching circuit (1) and energization is maintained to close In lock circuit (2) and all links such as temp.-sensing wire (3) and lock-controlled switch (6), open circuit or certain short trouble are such as abnormal, The electric current for maintaining locking has been blocked, or has destroyed the condition of self-locking for maintaining locking, auto-unlocking is powered off, is fed back through dead electricity, again Lock-controlled switch (6) is self-locking in the unlocking condition of power-off all the time, make electric blanket overheat when control circuit abnormal open circuit or Short trouble is not still out of control, and overheating protection function never fails, and completely eliminates the security risk and defect of electric blanket.In It is to be achieved that to provide the hope that Dingan County's electric blanket out of control is protected in a kind of full blanket solar heat protection to the user.

2nd, illustrating to the first technical solution specific embodiment 1 of the invention：

1 circuit diagram of specific embodiment of the first technical solution of the invention, as shown in Fig. 2, the logical pressurize control Latching circuit (1) include resistance 2R1,2R2, R5, R6, capacitance 2C1 and zener diode 2WD1,2WD2, diode 2D1,2D2, D5,2D7,2D16 and electromagnetic relay J coils, or replaced with light emitting diode series resistor R6 in solid-state relay SSR Electromagnetic relay J coils and diode D5, or replace resistance 2R1 with posive temperature coefficient thermistor PTC；The lock control is opened Closing (6) includes normally opened button CKA and electromagnetic relay J normally opened contacts, or is replaced with bidirectional triode thyristor in solid-state relay SSR Electromagnetic relay J normally opened contacts；The maintenance energization exclusive circuit (2) includes diode 2D3,2D4,2D17 and resistance 2R4； The temp.-sensing wire (3) is exactly outer layer temp.-sensing wire RS, and heating wire (4) is exactly internal layer heating wire WR, outer layer temp.-sensing wire RS and internal layer Hot general character separation layer either heat leak sexual isolation layer or insulating barrier layer are adapted between heating wire WR, such as common nylon melts soon Thermoplastic 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 heat leak sexual isolation layer material with the bigger NTC characteristics of temperature more high impedance more Low dark curient；The half-wave is powered Device (5) is exactly diode 2D18, and the protective tube (7) is exactly the protective tube BX manufactured with the fusible link of anti-short circuit current flow, institute The gear temperature regulating switch (9) stated is exactly the gear temperature regulating switch DWK for having three gears；Circuit connecting mode：The diode 2D1 cathodes are connected to alternating current wires L as an AC input of logical pressurize control latching circuit (1)₂On mount it is normal The load-side of button CKA and the load-side of electromagnetic relay J normally opened contacts are opened, diode 2D2 cathodes are as logical pressurize control self-locking Another AC input of circuit (1) is connected to alternating current wires N₁On the load-side of gear temperature regulating switch DWK that mounts 1st gear, diode 2D16 cathodes are connected to alternating current wires as the 3rd AC input of logical pressurize control latching circuit (1) N₂On the 2nd gear of load-side of gear temperature regulating switch DWK that mounts, diode 2D1,2D2,2D16 anode and capacitance Direct current power source voltage cathode (the V of 2C1 cathodes and contact as logical pressurize control latching circuit (1) output₊₁), reconnect two pole of voltage stabilizing One end of pipe 2WD2 anode and resistance 2R1, the other end and zener diode 2WD1 anode of resistance 2R1 simultaneously connect diode D5 anode With one end of electromagnetic relay J coils, the other end and diode D5 cathodes of electromagnetic relay J coils simultaneously connect 2D7 cathodes；Or Electromagnetic relay J is replaced with solid-state relay SSR, light emitting diode cathode in solid-state relay SSR (16 foot) is connected into voltage stabilizing Diode 2WD1 anode and resistance 2R1 tie points, light emitting diode anode (1 foot) connection resistance R6, electricity in solid-state relay SSR R6 other ends connection diode 2D7 cathodes are hindered, one end (the 10th foot) connection of bidirectional triode thyristor in solid-state relay SSR is normally opened The load-side of button CKA, the other end (the 8th foot) of bidirectional triode thyristor connects the power supply of normally opened button CKA in solid-state relay SSR Side；Diode 2D7 anode connect zener diode 2WD2 cathodes and resistance 2R2 one end, two pole of resistance 2R2 other ends connection voltage stabilizing Pipe 2WD1 cathodes and the inner of capacitance 2C1 anode and resistance R5 are used as the logical interior direct current site of pressurize control latching circuit (1) (V₊₃), the head end (a) of the outer end connection outer layer temp.-sensing wire RS of resistance R5, tail end (b) the connection resistance 2R4's of outer layer temp.-sensing wire RS Outer end is as the ground terminal (GND) for maintaining energization exclusive circuit (2), inner connection diode 2D3,2D4,2D17 of resistance 2R4 Cathode is as maintenance energization exclusive circuit (2) interior DC voltage anode (V_-1), diode 2D3 anode are as maintenance energization locking electricity One AC input on road (2) is connected to alternating current wires L₂On, diode 2D4 anode are as maintenance energization exclusive circuit (2) another AC input is connected to alternating current wires N₁On the 1st grade of the load-side of gear temperature regulating switch DWK that mounts Position, diode 2D17 anode are connected to alternating current wires N as the 3rd AC input of maintenance energization exclusive circuit (2)₂It The 2nd gear of load-side of the gear temperature regulating switch DWK of upper mounting；Diode 2D18 cathodes as half-wave power on unit (5) also connect It is connected on alternating current wires N₂On the 2nd gear of load-side of gear temperature regulating switch DWK that mounts, diode 2D18 anode are connected to friendship Galvanic electricity line N₁On the tail end (B) of internal layer heating wire WR and the 1st gear of load-side of gear temperature regulating switch DWK that mount；Gear The 3rd gear of load-side of temperature regulating switch DWK is vacant as power-off gear, and three gears of mains side of gear temperature regulating switch DWK are simultaneously Ac power input end (N) is connected after connection；The head end (A) of the internal layer heating wire WR is connected to alternating current wires L₂On mount Diode 2D3 anode and the load-side of normally opened button CKA and the load-side of electromagnetic relay J normally opened contacts；Described is normally opened The mains side of button CKA and the mains side of electromagnetic relay J normally opened contacts are through alternating current wires L₁One end of protective tube BX is connected, is protected The other end connection ac power input end (L) of dangerous pipe BX；The firewire of the AC power is defeated from ac power input end L Enter, the zero curve of AC power is inputted from ac power input end N, or exchange the input of AC power polarity, the zero of AC power Line is inputted from ac power input end L, the firewire of AC power is inputted from ac power input end N；Electromagnetic relay J coils lead to The electromagnetic force exported when electric directly controls electromagnetic relay J normally opened contacts and is attracted the AC power for connecting heating wire WR, Huo Zheyou The AC power of light (G) conduct energization hot line WR in solid-state relay SSR.

Preferred embodiment 1 (as shown in Figure 2) circuit theory of the first technical solution of the invention is as follows：

Work normally principle：It is identical with Fig. 1 normal work principles, without repeating.

Overtemperature protection principle：When heating wire (4) hot-spot in electric blanket, temperature rise is higher than normal range (NR), causes temp.-sensing wire (3) part between heating wire (4) (such as at its head end A-a or at tail end B-b or middle somewhere) the fast fast thawing of insolated layer materials Change break-through short circuit or leak electricity larger (impedance diminishes), allow in heating wire (4) alternating voltage to be directly entered by temp.-sensing wire (3) logical The interior resistance R5 of pressurize control latching circuit (1) and the ground terminal (GND) for maintaining energization exclusive circuit (2), when the friendship for entering resistance R5 Galvanic electricity makes the interior direct current site (V of logical pressurize control latching circuit (1) when polarity is positive A → a or B → b₊₃) current potential and direct current Source voltage V₊₁Remain basically stable, when the alternating current for entering resistance R5 is when polarity be anti-a → A or b → B, make logical pressurize control self-locking electric The interior direct current site (V in road (1)₊₃) current potential is than direct current power source voltage V₊₁Less than it is normal when many times, but it is actual in fig. 2, due to Zener diode 2WD1 pressure stabilization functions, diode D5 anode potential drops is much lower, and zener diode 2WD2 pressure stabilization functions, will The rise of diode 2D7 anode current potential is very much, diode 2D7 anode current potential is higher than diode D5 anode current potentials on the contrary, because This, by heating wire (4) into the alternating current of resistance R5 polarity whether just or instead, electromagnetic relay J coils can be blocked to close Electric current is locked, forces the release of electromagnetic relay J normally opened contacts to disconnect AC power, maintains energization exclusive circuit (2) and logical pressurize control Latching circuit (1) just loses maintenance electric current completely, is fed back through dead electricity, and lock-controlled switch (6) is self-locking in the unlocking shape of power-off all the time State, heating wire (4) cannot be powered all the time.Then, it is achieved that the overtemperature protection to electric blanket.

Prevent principle out of control：Prevent that principle out of control is identical with Fig. 1, without repeating.

3rd, illustrating to the first technical solution specific embodiment 2 of the invention：

2 circuit diagram of specific embodiment of the first technical solution of the invention, as shown in figure 3, the logical pressurize control Latching circuit (1) includes resistance 3R1,3R2,3R3, R5, R6, capacitance 3C1 and zener diode 3WD1,3WD2,3WD3, diode 3D1,3D2,3D6,3D7, D5,3D16, triode T1, T2 and electromagnetic relay J coils, or with solid-state relay SSR Light emitting diode series resistor R6 replaces electromagnetic relay J coils and diode D5；The lock-controlled switch (6) includes normally opened press Button CKA and electromagnetic relay J normally opened contacts, or it is normally opened with bidirectional triode thyristor replacement electromagnetic relay J in solid-state relay SSR Contact, or replace resistance 3R3 with posive temperature coefficient thermistor PTC；The maintenance energization exclusive circuit (2) includes two poles Pipe 3D3,3D4,3D17 and resistance 3R4；The temp.-sensing wire (3) is exactly outer layer temp.-sensing wire RS, and heating wire (4) is exactly internal layer electric heating Hot general character separation layer either heat leak sexual isolation layer or insulating properties are adapted between line WR, outer layer temp.-sensing wire RS and internal layer heating wire WR Separation layer, such as common nylon melt thermoplastic and belong to the spy that hot general character insolated layer materials have overheat fast thawing break-through short circuit soon 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 characteristics；The half-wave power on unit (5) is exactly diode 3D18, and the protective tube (7) is exactly melting with anti-short circuit current flow The protective tube BX of fracture of wire manufacture, the gear temperature regulating switch (9) is exactly the gear temperature regulating switch DWK for having three gears；Circuit Connection mode：The diode 3D1 cathodes are connected to friendship as an AC input of logical pressurize control latching circuit (1) Galvanic electricity line L₂On the load-side of normally opened button CKA and the load-side of electromagnetic relay J normally opened contacts that mount, diode 3D2 Cathode is connected to alternating current wires N as another AC input of logical pressurize control latching circuit (1)₁On the gear that mounts The 1st gear of load-side of temperature regulating switch DWK, threeth alternating current of the diode 3D16 cathodes as logical pressurize control latching circuit (1) Input terminal is connected to alternating current wires N₂On the 2nd gear of load-side of gear temperature regulating switch DWK that mounts, the diode The direct current power source voltage of 3D1,3D2,3D16 anode and capacitance 3C1 cathodes and contact as logical pressurize control latching circuit (1) output Cathode (V₊₁), reconnect zener diode 3WD1 anode and one end of resistance 3R1, two pole of other end connection voltage stabilizing of resistance 3R1 Pipe 3WD3 anode and triode T1 emitters, triode T1 base stages connection diode 3D7 cathodes, the connection of diode 3D7 anode are steady Press diode 3WD1 cathodes and one end of resistance 3R3, the other end connection zener diode 3WD2 anode and diode of resistance 3R3 3D6 cathodes, diode 3D6 anode connecting triode T2 base stages, triode T2 emitters connection zener diode 3WD3 cathodes and One end of resistance 3R2, the other end of resistance 3R2 connect the inner of zener diode 3WD2 cathodes, capacitance 3C1 anode and resistance R5 As the logical interior direct current site (V of pressurize control latching circuit (1)₊₃), the outer end connection outer layer temp.-sensing wire RS head ends (a) of resistance R5, Triode T1 collectors connect one end of diode DS anode and electromagnetic relay J coils, the other end of electromagnetic relay J coils Triode T2 collectors are attempted by with diode D5 cathodes, or electromagnetic relay J is replaced with solid-state relay SSR, by solid-state Light emitting diode cathode (16 foot) connecting triode T1 collectors in relay SSR, light emitting diode is born in solid-state relay SSR Pole (1 foot) connects resistance R6, resistance R6 other end connecting triode T2 collectors, by bidirectional triode thyristor in solid-state relay SSR One end (the 10th foot) connect the load-side of normally opened button CKA, the other end the (the 8th of bidirectional triode thyristor in solid-state relay SSR Foot) the normally opened button CKA of connection mains side；The outer end of tail end (b) the connection resistance 3R4 of outer layer temp.-sensing wire RS is powered as maintenance The ground terminal (GND) of exclusive circuit (2), inner connection diode 3D3,3D4,3D17 cathode of resistance 3R4 are powered as maintenance The interior DC voltage anode (V of exclusive circuit (2)_-1), diode 3D3 anode are as an exchange for maintaining energization exclusive circuit (2) Electrical input is connected to alternating current wires L₂On, diode 3D4 anode are as another exchange for maintaining energization exclusive circuit (2) Electrical input is connected to alternating current wires N₁On the 1st gear of load-side of gear temperature regulating switch DWK that mounts, diode 3D17 bears Pole is connected to alternating current wires N as the 3rd AC input of maintenance energization exclusive circuit (2)₂On the gear temperature adjustment that mounts Switch the 2nd gear of load-side of DWK；Diode 3D18 cathodes as half-wave power on unit (5) are also connected to alternating current wires N₂It The 2nd gear of load-side of the gear temperature regulating switch DWK of upper mounting, diode 3D18 anode are connected to alternating current wires N₁On mount The tail end (B) of internal layer heating wire WR and the 1st gear of load-side of gear temperature regulating switch DWK；The load of gear temperature regulating switch DWK The 3rd gear of side is vacant as power-off gear, and it is defeated that AC power is connected after three gear parallel connections of mains side of gear temperature regulating switch DWK Enter end (N)；The head end (A) of the internal layer heating wire WR is connected to alternating current wires L₂On the diode 3D3 anode that mount and The load-side of normally opened button CKA and the load-side of electromagnetic relay J normally opened contacts；The mains side of the normally opened button CKA and The mains side of electromagnetic relay J normally opened contacts is through alternating current wires L₁One end of protective tube BX is connected, the other end of protective tube BX connects Connect ac power input end (L)；The firewire of the AC power is inputted from ac power input end L, the zero curve of AC power Inputted from ac power input end N, or exchange the input of AC power polarity, the zero curve of AC power is from ac power input end L inputs, the firewire of AC power are inputted from ac power input end N；The electromagnetic force that electromagnetic relay J coils export when being powered is straight Connect control electromagnetic relay J normally opened contacts and be attracted the AC power for connecting heating wire WR, or by light in solid-state relay SSR (G) AC power of conduct energization hot line WR.

Preferred embodiment 2 (as shown in Figure 3) circuit theory of the first technical solution of the invention is as follows：

Overtemperature protection principle：When heating wire (4) hot-spot in electric blanket, temperature rise is higher than normal range (NR), causes temp.-sensing wire (3) part between heating wire (4) (such as at its head end A-a or at tail end B-b or middle somewhere) the fast fast thawing of insolated layer materials Change break-through short circuit or leak electricity larger (impedance diminishes), allow in heating wire (4) alternating voltage to be directly entered by temp.-sensing wire (3) logical The interior resistance R5 of pressurize control latching circuit (1) and the ground terminal (GND) for maintaining energization exclusive circuit (2), when the friendship for entering resistance R5 Galvanic electricity makes the interior direct current site (V of logical pressurize control latching circuit (1) when polarity is positive A → a or B → b₊₃) current potential and direct current Source voltage V₊₁Remain basically stable, when the alternating current for entering resistance R5 is when polarity be anti-a → A or b → B, make logical pressurize control self-locking electric The interior direct current site (V in road (1)₊₃) current potential is than direct current power source voltage V₊₁Less than it is normal when many times, but it is actual in figure 3, when into Enter the alternating current of resistance R5 when polarity is anti-a → A or b → B, due to zener diode 3WD1,3WD2,3WD3 pressure stabilization function, Make diode 3D7 anode current potential many higher than triode T1 transmitting electrode potentials, diode 3D6 anodic potentials are sent out less than triode T2 Emitter potential is very much, triode T1, T2 is ended at the same time, blocks electromagnetic relay J coil latching currents, forces electromagnetic relay The release of J normally opened contacts disconnects AC power, maintains energization exclusive circuit (2) and logical pressurize control latching circuit (1) just to lose completely Electric current is maintained, is fed back through dead electricity, lock-controlled switch (6) is self-locking in the unlocking condition of power-off all the time, heating wire (4) cannot lead to all the time Electricity.Then, it is achieved that the overtemperature protection to electric blanket.

4th, illustrating to the first technical solution specific embodiment 3 of the invention：

3 circuit diagram of specific embodiment of the first technical solution of the invention, as shown in figure 4, the logical pressurize control Latching circuit (1) includes safety control module IC, resistance 4R1,4R2,4R3, R5, R6, capacitance 4C1,4C2 and zener diode 4WD1,4WD2, diode 4D1,4D2, D5, D6,4D16 and electromagnetic relay J coils, or sent out with solid-state relay SSR Optical diode series resistor R6 replaces electromagnetic relay J coils and diode D5, or is replaced with posive temperature coefficient thermistor PTC Change resistance 4R2, wherein safety control module IC is using anti-failure or anti-safety control circuit out of control etc or with its function etc. The circuit of effect, such as the anti-circuit chip out of control of model RAH688 just belong to one of safety control circuit；The lock control is opened Closing (6) includes normally opened button CKA and electromagnetic relay J normally opened contacts, or is replaced with bidirectional triode thyristor in solid-state relay SSR Electromagnetic relay J normally opened contacts；The maintenance energization exclusive circuit (2) includes diode 4D3,4D4,4D17 and resistance 4R4； The temp.-sensing wire (3) is exactly outer layer temp.-sensing wire RS, and heating wire (4) is exactly internal layer heating wire WR, outer layer temp.-sensing wire RS and internal layer Hot general character separation layer or heat leak sexual isolation layer are adapted between heating wire WR, such as common nylon melts thermoplastic and belongs to heat soon General character insolated layer materials have overheat fast thawing break-through short circuit characteristic, such as semiconductor nylon thermoplastic's material belong to heat leak every Layer material has the bigger NTC characteristics of temperature more high impedance more Low dark curient；The half-wave power on unit (5) is exactly diode 4D18, the protective tube (7) are exactly the protective tube BX manufactured with the fusible link of anti-short circuit current flow, the gear temperature regulating switch (9) it is exactly the gear temperature regulating switch DWK that there are three gears；Circuit connecting mode：The diode 4D1 cathodes are as logical pressurize One AC input of control latching circuit (1) is connected to alternating current wires L₂On the load-side of normally opened button CKA that mounts With the load-side of electromagnetic relay J normally opened contacts, another friendship of diode 4D2 cathodes as logical pressurize control latching circuit (1) Galvanic electricity input terminal is connected to alternating current wires N₁On the 1st gear of load-side of gear temperature regulating switch DWK that mounts, diode 3D16 Cathode is connected to alternating current wires N as the 3rd AC input of logical pressurize control latching circuit (1)₂On the gear tune that mounts The 2nd gear of load-side of temperature switch DWK；Diode 4D1,4D2,4D16 anode and capacitance 4C1 cathodes and contact conduct Direct current power source voltage cathode (the V of logical pressurize control latching circuit (1) output₊₁), reconnect zener diode 4WD1 anode and resistance One end of 4R2, the other end connection zener diode 4WD2 anode and capacitance 4C2 cathodes of resistance 4R2 is as logical pressurize control self-locking The interior direct current site (V of circuit (1)₊₂) reconnect the DC supply input positive terminal (V of safety control module IC₊), two pole of voltage stabilizing Pipe 4WD2 cathodes connect resistance 4R1 one end and capacitance 4C1,4C2 anode as the logical interior direct current site of pressurize control latching circuit (1) (V₊₃), the inner of reconnection resistance R5 and the DC supply input negative pole end (V of safety control module IC_-), the outer end of resistance R5 The head end (a) of outer layer temp.-sensing wire RS is connected, the resistance 4R1 other ends and resistance 4R3 one end are attempted by the two of safety control module IC Input terminal (V_i1、V_i2), resistance 4R3 other ends connection zener diode 4WD1 cathodes, the same phase of the safety control module IC Output terminal (V_o1) connection diode D6 anode, diode D6 cathodes and diode D5 cathodes are connected to electromagnetic relay J coils one Reversed-phase output (the V of end, electromagnetic relay J coils other end connection diode D5 anode and safety control module IC_o2)；Or Electromagnetic relay J is replaced with solid-state relay SSR, light emitting diode cathode in solid-state relay SSR (16 foot) is connected into safety Reversed-phase output (the V of control module IC_o2), light emitting diode anode (1 foot) connection resistance R6, resistance in solid-state relay SSR The R6 other ends connect diode D6 cathodes, the in-phase output end (V of diode D6 anode connection safety control module IC_o1), will be solid One end (the 8th foot) of bidirectional triode thyristor connects the mains side of normally opened button CKA in state relay SSR, double in solid-state relay SSR The load-side of normally opened button CKA is connected to the silicon-controlled other end (the 10th foot)；Tail end (b) the connection resistance of outer layer temp.-sensing wire RS Ground terminal (GND) of the outer end of 4R4 as maintenance energization exclusive circuit (2), inner parallel diode 4D3,4D4 of resistance 4R4, The cathode of 4D17 is as the DC voltage anode (V for maintaining energization exclusive circuit (2)_-1), diode 4D3 anode are powered as maintenance One AC input of exclusive circuit (2) is connected to alternating current wires L₂On, diode 4D4 anode are closed as maintenance energization Another AC input of lock circuit (2) is connected to alternating current wires N₁On the load of gear temperature regulating switch DWK that mounts The 1st gear of side, diode 3D17 anode are connected to alternating current as the 3rd AC input of maintenance energization exclusive circuit (2) Line N₂On the 2nd gear of load-side of gear temperature regulating switch DWK that mounts；Diode 4D18 as half-wave power on unit (5) is just Pole is also connected to alternating current wires N₂On the 2nd gear of load-side of gear temperature regulating switch DWK that mounts, diode 4D18 anode connect It is connected on alternating current wires N₁On the tail end (B) of internal layer heating wire WR that mounts and the 1st grade of the load-side of gear temperature regulating switch DWK Position, the 3rd gear of load-side of gear temperature regulating switch DWK are vacant as power-off gear, the mains side of gear temperature regulating switch DWK three Ac power input end (N) is connected after gear parallel connection；The head end (A) of the internal layer heating wire WR is connected to alternating current wires L₂It The load-side of the load-side and electromagnetic relay J normally opened contacts of the diode 4D3 anode of upper mounting and normally opened button CKA；It is described Normally opened button CKA mains side and electromagnetic relay J normally opened contacts mains side through alternating current wires L₁Connect protective tube BX's One end, the other end connection ac power input end (L) of protective tube BX；The firewire of the AC power is inputted from AC power Hold the zero curve of L inputs, AC power to be inputted from ac power input end N, or exchange the input of AC power polarity, AC power Zero curve from ac power input end L input, AC power firewire from ac power input end N input；Electromagnetic relay J lines The electromagnetic force that circle exports when being powered directly controls electromagnetic relay J normally opened contacts and is attracted the AC power for connecting heating wire WR, or Person by light (G) conduct energization hot line WR in solid-state relay SSR AC power.

Preferred embodiment 3 (as shown in Figure 4) circuit theory of the first technical solution of the invention is as follows：

Overtemperature protection principle：When heating wire (4) hot-spot in electric blanket, temperature rise is higher than normal range (NR), causes temp.-sensing wire (3) part between heating wire (4) (such as at its head end A-a or at tail end B-b or middle somewhere) the fast fast thawing of insolated layer materials Change break-through short circuit or leak electricity larger (impedance diminishes), allow in heating wire (4) alternating voltage to be directly entered by temp.-sensing wire (3) logical The interior resistance R5 of pressurize control latching circuit (1) and the ground terminal (GND) for maintaining energization exclusive circuit (2), when the friendship for entering resistance R5 Galvanic electricity makes the interior direct current site (V of logical pressurize control latching circuit (1) when polarity is positive A → a or B → b₊₃) current potential and direct current Source voltage V₊₁Remain basically stable, when the alternating current for entering resistance R5 is when polarity be anti-a → A or b → B, make logical pressurize control self-locking electric The interior direct current site (V in road (1)₊₃) current potential is than direct current power source voltage V₊₁Less than it is normal when many times, but it is actual in Fig. 4, when into Enter the alternating current of resistance R5 when polarity is anti-a → A or b → B, due to zener diode 4WD1,4WD2 pressure stabilization function, allow safety Input terminal (the V of control module IC_i1、V_i2) potential rise is much higher, allow the logical interior direct current site (V of pressurize control latching circuit (1)₊₂) Potential drop is much lower, triggering safety control module IC state upsets, the in-phase output end (V of safety control module IC_o1) output height Status, the reversed-phase output (V of safety control module IC_o2) output low ground potential, electromagnetic relay J coil latching currents are blocked, by force Compel the release of electromagnetic relay J normally opened contacts and disconnect AC power, lock-controlled switch (6) is turned off to the unlocking shape of AC power State, maintains energization exclusive circuit (2) and logical pressurize control latching circuit (1) just to lose maintenance electric current completely, feeds back, will lock through dead electricity Control switch (6) is self-locking in the unlocking condition of power-off all the time, and heating wire (4) cannot be powered all the time.Then, it is achieved that to electric blanket Overtemperature protection.

5th, second of technical solution of the present invention is illustrated：

The physical circuit schematic diagram of second of technical solution of the invention, as shown in figure 5, wherein (1) is logical pressurize control self-locking Circuit, (2) be to maintain energization exclusive circuit, (3) be temp.-sensing wire, (4) are heating wire, (6) are lock-controlled switch, BX be protective tube, (8) it is disconnection protection circuit, DK is power switch, (10) are electric heating temperature-control circuit.The logical pressurize control latching circuit (1), energization exclusive circuit (2), temp.-sensing wire (3) are maintained using the logical pressurize described in the first technical solution and its preferred embodiment Control latching circuit (1), maintain energization exclusive circuit (2), the technical solution of temp.-sensing wire (3)；The lock-controlled switch (6) includes normal Open button CKA and electromagnetic relay J normally opened contacts and electromagnetic relay Jb left sides normally opened contact；The disconnection protection circuit (8) diode 5D11 to 5D14,5D9, capacitance 5C5, electromagnetic relay Jb are included；Circuit connecting mode：The logical pressurize control Two AC inputs of latching circuit (1) are separately connected across alternating current wires L₅With alternating current wires N₁Between, lead to pressurize control self-locking Interior resistance R5 outer ends connection temp.-sensing wire (3) head end (a) of circuit (1), leads to the direct current power source voltage of pressurize control latching circuit (1) output Cathode (V₊₁) connection electric heating temperature-control circuit (10) DC supply input positive terminal, lead to straight in pressurize control latching circuit (1) Galvanic electricity site (V₊₃) connection electric heating temperature-control circuit (10) interior signal input part (V_in), the maintenance energization exclusive circuit (2) ground terminal (GND) connection temp.-sensing wire (3) tail end (b) and the ground terminal (GND) of electric heating temperature-control circuit (10), maintain Two AC inputs of energization exclusive circuit (2) are also separately connected across alternating current wires L₅With alternating current wires N₁Between；Described Applied heat general character separation layer or heat leak sexual isolation layer between temp.-sensing wire (3) and heating wire (4), such as common nylon melt thermoplastic soon Property material 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 Belong to heat leak sexual isolation layer material with the bigger NTC characteristics of temperature more high impedance more Low dark curient；The head of the heating wire (4) Correspondence is connected across alternating current wires L respectively for end (A) and tail end (B)₃With alternating current wires N₂Between；The electric heating temperature-control circuit (10) an exchange end connection alternating current wires N of interior temperature control performer₁, another exchange end connection alternating current wires N₂；The power supply The load-side of switch DK is connected to alternating current wires N₁On, its mains side connection ac power input end N；The lock-controlled switch (6) mains side of normally opened button CKA connects alternating current wires L with the mains side of electromagnetic relay J normally opened contacts in₁With protective tube BX One end, the other end connection ac power input end L of protective tube BX, the load-side warp of normally opened button CKA in lock-controlled switch (6) Alternating current wires L₂Connect the interior diode 5D11 cathodes of disconnection protection circuit (8) and diode 5D12 anode and electromagnetic relay Jb Left side normally opened contact and/or the right normally opened contact mains side, the load-side connection of left side normally opened contact in electromagnetic relay Jb The load-side of electromagnetic relay J normally opened contacts, the load-side of electromagnetic relay Jb the right normally opened contact are connected to alternating current wires L₅ On, one of which is selected for the left side in electromagnetic relay Jb and two groups of the right normally opened contact or only, no another group The direct short circuit connection in both ends of normally opened contact；One end of the electromagnetic relay Jb coils and connect diode 5D11,5D14, 5D9 anode and capacitance 5C5 cathodes are as disconnection protection circuit (8) high-end (V of interior DC voltage₊₅), electromagnetic relay Jb coils The other end simultaneously connects diode 5D12,5D13,5D9 cathode and capacitance 5C5 anode and is forced down as disconnection protection circuit (8) interior direct current Hold (V₊₄)；Alternating current wires L₃One end connection diode 5D14 cathodes and diode 5D13 anode, alternating current wires L₃The other end Connect the head end (A) of internal layer heating wire (4)；The firewire of the AC power is inputted from ac power input end L, AC power Zero curve inputted from ac power input end N, or exchange the input of AC power polarity, the zero curve of AC power is from AC power Input terminal L inputs, the firewire of AC power are inputted from ac power input end N；The electricity that electromagnetic relay J coils export when being powered Magnetic force directly controls electromagnetic relay J normally opened contacts and is attracted the AC power for connecting heating wire WR；Electromagnetic relay Jb coils lead to The electromagnetic force exported when electric directly controls the left side normally opened contact of electromagnetic relay Jb and/or the right normally opened contact is attracted to connect and leads to Pressurize control latching circuit (1) and the AC power for maintaining energization exclusive circuit (2).

The physical circuit operation principle of second of technical solution of the invention is as follows：

Work normally principle：When needing electric blanket input fever work, AC power input both ends (L, N) in Figure 5 After inputting suitable AC power, first power on switch DK, then click in (or start) lock-controlled switch (6) normally opened press Button CKA, allow disconnection protection circuit (8) connected with heating wire (4) input AC power, disconnection protection circuit (8) interior electromagnetism after Electric appliance Jb coils, which are powered, to be attracted, and the left side normally opened contact and/or the right normally opened contact of electromagnetic relay Jb, which are connected, maintains energization locking Circuit (2) and the AC power of logical pressurize control latching circuit (1), at the beginning of powering on, heating wire (4) allows temp.-sensing wire (3) institute temperature-sensitive degree It is relatively low, because separation layer is in state of insulation, lead to pressurize control latching circuit (1) by the convert alternating current of input be direct current after, from The DC current of R5 outer ends output smoothly flows to another friendship after temp.-sensing wire (3) enters maintenance energization exclusive circuit (2) processing Galvanic electricity line (L₂Or N₁), then maintain energization exclusive circuit (2) to allow logical pressurize control latching circuit (1) to maintain locking and be attracted energization State, leads to the electromagnetic force of pressurize control latching circuit (1) output terminal or light intensity (G) controls electromagnetic relay J in lock-controlled switch (6) normal Contacting AC power is opened, makes disconnection protection circuit (8), heating wire (4) and maintains energization exclusive circuit (2) and logical pressurize Control latching circuit (1) is continuously maintained at locking "on" position, and heating wire (4) continues heating power, if the heat and temperature of electric blanket Spend the temperature range higher, electric heating temperature-control circuit (10) automatically will feel comfortably cool electric blanket temperature adjusting to human body； Stop generating heat to electric blanket, power switch DK is placed in de-energized manually, has just been fully disconnected alternating current, breaking protection Circuit (8) and heating wire (4) disconnect AC power immediately, maintain energization exclusive circuit (2) and logical pressurize control latching circuit (1) Maintenance electric current is lost immediately, and lock-controlled switch (6) is turned off to the unlocking condition of power supply, at this time, if manual ON power supply again DK is switched, lock-controlled switch (6) is self-locking in the unlocking condition of power-off by logical pressurize control latching circuit (1) still dead electricity all the time.If think Electric blanket is once again powered up fever, it is necessary to press the normally opened button CKA in lock-controlled switch (6) again, allows logical pressurize control latching circuit (1) lock-controlled switch (6) is locked in lasting locking "on" position again.

Overtemperature protection principle：When heating wire (4) hot-spot in electric blanket, temperature rise is higher than normal range (NR), causes temp.-sensing wire (3) part between heating wire (4) (such as at its head end A-a or at tail end B-b or middle somewhere) the fast fast thawing of insolated layer materials Change break-through short circuit or leak electricity larger (impedance diminishes), allow in heating wire (4) alternating voltage to be directly entered by temp.-sensing wire (3) logical The interior resistance R5 of pressurize control latching circuit (1) and the ground terminal (GND) for maintaining energization exclusive circuit (2), when the friendship for entering resistance R5 Galvanic electricity makes the interior direct current site (V of logical pressurize control latching circuit (1) when polarity is positive A → a or B → b₊₃) current potential and direct current Source voltage V₊₁Remain basically stable, when the alternating current for entering resistance R5 is when polarity be anti-a → A or b → B, make logical pressurize control self-locking electric The interior direct current site (V in road (1)₊₃) current potential is than direct current power source voltage V₊₁Less than it is normal when many times, but due to leading to pressurize control self-locking The pressure stabilization function of each zener diode in circuit (1), the former high low potential in electromagnetic relay J coils both ends is inverted, or makes three poles Pipe ends, or triggering safety control module IC state upsets, therefore, the polarity by heating wire (4) into the alternating current of resistance R5 Whether just or instead, electromagnetic relay J coil latching currents can be blocked, forces the release of electromagnetic relay J normally opened contacts to disconnect AC power；Energization exclusive circuit (2) and logical pressurize control latching circuit (1) is maintained just to lose maintenance electric current completely, it is anti-through dead electricity Lock-controlled switch (6), is self-locking in the unlocking condition of power-off by feedback all the time, and heating wire (4) cannot be powered all the time.Then, it is achieved that Overtemperature protection to electric blanket.

Prevent principle out of control：Because electric blanket normally generate heat needed for AC power, it is necessary to by logical pressurize control latching circuit (1) and energization exclusive circuit (2) and temp.-sensing wire (3) are maintained as electromagnetic relay J coils or hair in logical pressurize control latching circuit (1) The unimpeded DC current of optical diode, makes the electromagnetic force or light intensity (G) control lock-controlled switch of logical pressurize control latching circuit (1) output terminal (6) "on" position is persistently latched in, could maintain to connect AC power.When logical pressurize control latching circuit (1) and energization is maintained to close In all links such as lock circuit (2) and disconnection protection circuit (8), temp.-sensing wire (3) and lock-controlled switch (6), such as it is abnormal out Road or certain short trouble, have blocked the electric current for maintaining locking, or destroy the condition of self-locking for maintaining locking, break with regard to auto-unlocking Electricity, feeds back through dead electricity, and lock-controlled switch (6) is self-locking in the unlocking condition of power-off all the time, makes electric blanket control electricity in overheat Road is abnormal that open circuit or short trouble be not still out of control, and overheating protection function never fails, and completely eliminates the peace of electric blanket Full hidden danger and defect.Then, it is achieved that and provides the hope that Dingan County's electric blanket out of control is protected in a kind of full blanket solar heat protection to the user.

Breaking protection principle：When heating wire (silk) fracture occurs for the internal somewhere of heating wire (4), the alternating current time is disconnected More than interior zero-cross triggering circuit copped wave cutout time (can be set in 0.1 to 0.5 second and be preferred) of electric heating temperature-control circuit (10), break Line protects circuit (8) high-end V of interior DC voltage₊₅Brownout, allows electromagnetic relay Jb coil blackouts to discharge, electromagnetic relay Jb Left side normally opened contact and/or the right normally opened contact disconnect maintain energization exclusive circuit (2) and logical pressurize control latching circuit immediately (1) AC power, leads to electromagnetic relay J coils in pressurize control latching circuit (1) and also loses maintenance electric current immediately, open lock control Close electromagnetic relay J normally opened contacts in (6) and disconnect AC power, fed back through dead electricity, lock-controlled switch (6) is self-locking in power-off all the time Unlocking condition.The technical measures be in order to prevent heating wire (silk) fracture after flashing (arcing) overlong time hot-spot, into And ignite and fabric of electric heat blanket or directly trigger fire, jeopardize personal safety as well as the property safety.Disconnection protection circuit (8) selects diode The rectifier bridge that 5D11 to 5D14 is formed coordinates electromagnetic relay Jb Coil Detector electric currents to have clear advantage, exactly if wherein sent out During raw disconnection fault, the AC power for maintaining energization exclusive circuit (2) and logical pressurize control latching circuit (1) is disconnected immediately, and into This is low.As it can be seen that the safety that the breaking protection function in the present invention further thoroughly reliably and effectively eliminates electric blanket again is hidden Trouble and defect.Thus the present invention is that Dingan County's electric blanket out of control is protected in a kind of full blanket solar heat protection.

6th, to the present invention, the third technical solution illustrates：

The physical circuit schematic diagram of the third technical solution of the invention, as shown in fig. 6, wherein (1) is logical pressurize control self-locking Circuit, (2) be to maintain energization exclusive circuit, (3) be temp.-sensing wire, (4) are heating wire, (6) are lock-controlled switch, BX be protective tube, (8) it is disconnection protection circuit, DK is power switch, (10) are electric heating temperature-control circuit.The logical pressurize control latching circuit (1), energization exclusive circuit (2), temp.-sensing wire (3) are maintained using the logical pressurize described in the first technical solution and its preferred embodiment Control latching circuit (1), maintain energization exclusive circuit (2), the technical solution of temp.-sensing wire (3)；The lock-controlled switch (6) includes normal Open button CKA and electromagnetic relay J normally opened contacts；The disconnection protection circuit (8) includes diode 6D11 to 6D14, capacitance 6C5, resistance 6R8, photoelectrical coupler 6RD and curtage mutual inductor 6HGQ；Circuit connecting mode：The logical pressurize control Two AC inputs of latching circuit (1) are separately connected across alternating current wires L₅With alternating current wires N₁Between, lead to pressurize control self-locking Interior resistance R5 outer ends connection temp.-sensing wire (3) head end (a) of circuit (1), leads to the direct current power source voltage of pressurize control latching circuit (1) output Cathode (V₊₁) connection electric heating temperature-control circuit (10) DC supply input positive terminal, lead to straight in pressurize control latching circuit (1) Galvanic electricity site (V₊₃) connection electric heating temperature-control circuit (10) interior signal input part (V_in), the maintenance energization exclusive circuit (2) ground terminal (GND) connection temp.-sensing wire (3) tail end (b) and the ground terminal (GND) of electric heating temperature-control circuit (10), maintain Two AC inputs of energization exclusive circuit (2) are also separately connected across alternating current wires L₅With alternating current wires N₁Between；Described Applied heat general character separation layer or heat leak sexual isolation layer between temp.-sensing wire (3) and heating wire (4), such as common nylon melt thermoplastic soon Property material 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 Belong to heat leak sexual isolation layer material with the bigger NTC characteristics of temperature more high impedance more Low dark curient；The head of the heating wire (4) Correspondence is connected across alternating current wires L respectively for end (A) and tail end (B)₃With alternating current wires N₂Between；The electric heating temperature-control circuit (10) an exchange end connection alternating current wires N of interior temperature control performer₁, another exchange end connection alternating current wires N₂；The power supply The load-side of switch DK is connected to alternating current wires N₁On, the mains side connection ac power input end N of power switch DK；It is described Lock-controlled switch (6) in the mains side of normally opened button CKA connect alternating current wires L with the mains side of electromagnetic relay J normally opened contacts₁ With one end of protective tube BX, the other end connection ac power input end L, normally opened button CKA in lock-controlled switch (6) of protective tube BX Load-side and electromagnetic relay J normally opened contacts load-side tie point through alternating current wires L₂Reconnect disconnection protection circuit (8) Photosensitive bidirectional triode thyristor one end and curtage mutual inductor 6HGQ armature windings one end, photoelectricity coupling in interior photoelectrical coupler 6GD Photosensitive bidirectional triode thyristor one end connection alternating current wires L in clutch 6GD₅, the curtage mutual inductor 6HGQ armature winding other ends Through alternating current wires L₃The head end (A) of internal layer heating wire (4) is connected, secondary windings n2 one end of curtage mutual inductor 6HGQ connects Connect diode 6D11 cathodes and diode 6D12 anode, secondary windings n2 other ends connection diode 6D14 cathodes and diode 6D13 anode, diode 6D11,6D14 anode and capacitance 6C5 cathodes and contact are as disconnection protection circuit (8) interior DC voltage High-end (V₊₅) resistance 6R8 one end is reconnected, the resistance 6R8 other ends connect light emitting diode cathode in photoelectrical coupler 6GD, photoelectricity Light emitting diode anode connection diode 6D12,6D13 cathode and capacitance 6C3 anode are as disconnection protection circuit in coupler 6GD (8) interior DC voltage low side (V₊₄)；The firewire of the AC power from ac power input end L input, AC power zero Line is inputted from ac power input end N, or exchanges the input of AC power polarity, and the zero curve of AC power is inputted from AC power The firewire of L inputs, AC power is held to be inputted from ac power input end N；The electromagnetic force that electromagnetic relay J coils export when being powered Directly control electromagnetic relay J normally opened contacts and be attracted the AC power for connecting heating wire WR；Light-emitting diodes in photoelectrical coupler 6GD Pipe be powered transmitting light intensity (G) directly control in photoelectrical coupler 6GD the logical pressurize control latching circuit (1) of bidirectional triode thyristor conducting and Maintain the AC power of energization exclusive circuit (2).

The physical circuit operation principle of the third technical solution of the invention is as follows：

Work normally principle：When needing electric blanket input fever work, AC power input both ends (L, N) in figure 6 After inputting suitable AC power, first power on switch DK, then click in (or start) lock-controlled switch (6) normally opened press Button CKA, allows disconnection protection circuit (8) to connect the AC power of input, the interior photoelectricity coupling of disconnection protection circuit (8) with heating wire (4) Light emitting diode shines immediately in clutch 6GD, the logical pressurize control latching circuit of bidirectional triode thyristor conducting in control photoelectrical coupler 6GD (1) and maintain energization exclusive circuit (2) AC power, at the beginning of powering on, heating wire (4) makes temp.-sensing wire (3) institute temperature-sensitive degree relatively low, Because separation layer is in state of insulation, lead to pressurize control latching circuit (1) by the convert alternating current of input be direct current after, from R5 outer ends The DC current of output smoothly flows to another alternating current wires after temp.-sensing wire (3) enters maintenance energization exclusive circuit (2) processing (L₂Or N₁), then maintain energization exclusive circuit (2) to allow logical pressurize control latching circuit (1) to maintain locking and be attracted "on" position, lead to Electromagnetic relay J normally opened contacts in electromagnetic force or light intensity (G) the control lock-controlled switch (6) of pressurize control latching circuit (1) output terminal AC power is connected, makes disconnection protection circuit (8), heating wire (4) and maintains energization exclusive circuit (2) and logical pressurize control self-locking Circuit (1) is continuously maintained at locking "on" position, and heating wire (4) continues heating power, if the heat and temperature drift of electric blanket, Electric blanket temperature will be adjusted the temperature range to feel comfortably cool to human body by electric heating temperature-control circuit (10) automatically；To electric heating Blanket stops fever, and power switch DK is placed in de-energized manually, has just been fully disconnected alternating current, disconnection protection circuit (8) AC power is disconnected immediately with heating wire (4), makes in the interior photoelectrical coupler 6GD of disconnection protection circuit (8) light emitting diode quickly Extinguish, maintain energization exclusive circuit (2) and logical pressurize control latching circuit (1) also to lose maintenance electric current immediately, by lock-controlled switch (6) The unlocking condition of power supply is turned off, at this time, if manual ON power switch DK again, leads to pressurize control latching circuit (1) still Lock-controlled switch (6) is self-locking in the unlocking condition of power-off by dead electricity all the time.If thinking, electric blanket is once again powered up fever, it is necessary to press again Normally opened button CKA in lock-controlled switch (6), allows logical pressurize control latching circuit (1) to be again locked in lock-controlled switch (6) and persistently closes Lock "on" position.

Breaking protection principle：When heating wire (silk) fracture occurs for the internal somewhere of heating wire (4), the alternating current time is disconnected More than interior zero-cross triggering circuit copped wave cutout time (can be set in 0.1 to 0.5 second and be preferred) of electric heating temperature-control circuit (10), break Line protects circuit (8) high-end V of interior DC voltage₊₅Brownout, allows light emitting diode in photoelectrical coupler 6GD to extinguish quickly, controls Bidirectional triode thyristor shut-off leads to pressurize control latching circuit (1) and maintains exchanging for energization exclusive circuit (2) in photoelectrical coupler 6GD processed Power supply, leads to electromagnetic relay J coils in pressurize control latching circuit (1) and also loses maintenance electric current immediately, makes electric in lock-controlled switch (6) Magnetic relay J normally opened contacts disconnect AC power, are fed back through dead electricity, lock-controlled switch (6) is self-locking in the unlocking shape of power-off all the time State.The technical measures are flashing (arcing) overlong time hot-spot and then the electricity that ignites after heating wire (silk) fracture in order to prevent Hot carpet surface material directly triggers fire, jeopardizes personal safety as well as the property safety.Disconnection protection circuit (8) selects curtage mutual inductor 6HGQ detection electric current have clear advantage, if be exactly wherein occur disconnection fault when, will not be to disconnection protection circuit (8) itself Or energization exclusive circuit (2) and logical pressurize control latching circuit (1) is maintained to produce impacting with high pressure and influence out of control.It is as it can be seen that of the invention In breaking protection function further thoroughly reliably and effectively eliminate the security risk and defect of electric blanket again.Thus originally Invention is that Dingan County's electric blanket out of control is protected in a kind of full blanket solar heat protection.

Claims

1. Dingan County's electric blanket out of control, including heating wire (4), half-wave power on unit (5), protective tube (7), gear tune are protected in full blanket solar heat protection Temperature switch (9), it is characterised in that：Further include logical pressurize control latching circuit (1), maintain energization exclusive circuit (2), temp.-sensing wire (3), Lock-controlled switch (6)；Two AC inputs of the logical pressurize control latching circuit (1) are separately connected across alternating current wires L₂With Alternating current wires N₁Between, the 3rd AC input of logical pressurize control latching circuit (1) is connected to alternating current wires N₂On, lead to and protect Voltage-controlled interior resistance R5 outer ends connection temp.-sensing wire (3) head end (a) of latching circuit (1)；Maintenance energization exclusive circuit (2) connect Ground terminal (GND) connects temp.-sensing wire (3) tail end (b), maintains two AC inputs of energization exclusive circuit (2) to be separately connected across Alternating current wires L₂With alternating current wires N₁Between, maintain the 3rd AC input of energization exclusive circuit (2) to be connected to alternating current wires N₂On；Applied heat general character separation layer or heat leak sexual isolation layer between the temp.-sensing wire (3) and heating wire (4), for example, it is general Logical nylon melts thermoplastic and belongs to the characteristic that hot general character insolated layer materials have overheat fast thawing break-through short circuit, such as semiconductor soon Nylon thermoplastic's material belongs to heat leak sexual isolation layer material with the bigger NTC characteristics of temperature more high impedance more Low dark curient；It is described Heating wire (4) head end (A) and tail end (B) respectively correspondence be connected across alternating current wires L₂With alternating current wires N₁Between；Described half The anode of ripple power on unit (5) is connected to alternating current wires N₁On, the cathode of half-wave power on unit (5) is connected to alternating current wires N₂On； The 1st gear of load-side of the gear temperature regulating switch (9) is connected to alternating current wires N₁On, the connection of its 2nd gear of load-side In alternating current wires N₂On, its 3rd gear of load-side is vacant as power-off gear, connects and hands over after the three gear parallel connections of its mains side Flow power input N；The load-side of the lock-controlled switch (6) is connected to alternating current wires L₂On, its mains side connection alternating current Line L₁With one end of protective tube (7), the other end connection ac power input end L of protective tube (7)；The fire of the AC power Line is inputted from ac power input end L, the zero curve of AC power is inputted from ac power input end N, or exchanges AC power Polarity inputs, the zero curve of AC power from ac power input end L inputs, AC power firewire from ac power input end N Input；The electromagnetic force or light intensity (G) of logical pressurize control latching circuit (1) output directly control the switch of lock-controlled switch (6) State.

2. Dingan County's electric blanket out of control is protected in full blanket solar heat protection according to claim 1, it is characterised in that：The logical pressurize control Latching circuit (1) include resistance 2R1,2R2, R5, R6, capacitance 2C1 and zener diode 2WD1,2WD2, diode 2D1,2D2, D5,2D7,2D16 and electromagnetic relay J coils, or replaced with light emitting diode series resistor R6 in solid-state relay SSR Electromagnetic relay J coils and diode D5, or replace resistance 2R1 with posive temperature coefficient thermistor PTC；The lock control is opened Closing (6) includes normally opened button CKA and electromagnetic relay J normally opened contacts, or is replaced with bidirectional triode thyristor in solid-state relay SSR Electromagnetic relay J normally opened contacts；The maintenance energization exclusive circuit (2) includes diode 2D3,2D4,2D17 and resistance 2R4； The temp.-sensing wire (3) is exactly outer layer temp.-sensing wire RS, and heating wire (4) is exactly internal layer heating wire WR, outer layer temp.-sensing wire RS and internal layer Hot general character separation layer either heat leak sexual isolation layer or insulating barrier layer are adapted between heating wire WR, such as common nylon melts soon Thermoplastic 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 heat leak sexual isolation layer material with the bigger NTC characteristics of temperature more high impedance more Low dark curient；The half-wave is powered Device (5) is exactly diode 2D18, and the protective tube (7) is exactly the protective tube BX manufactured with the fusible link of anti-short circuit current flow, institute The gear temperature regulating switch (9) stated is exactly the gear temperature regulating switch DWK for having three gears；Circuit connecting mode：The diode 2D1 cathodes are connected to alternating current wires L as an AC input of logical pressurize control latching circuit (1)₂On mount it is normal The load-side of button CKA and the load-side of electromagnetic relay J normally opened contacts are opened, diode 2D2 cathodes are as logical pressurize control self-locking Another AC input of circuit (1) is connected to alternating current wires N₁On the load-side of gear temperature regulating switch DWK that mounts 1st gear, diode 2D16 cathodes are connected to alternating current wires as the 3rd AC input of logical pressurize control latching circuit (1) N₂On the 2nd gear of load-side of gear temperature regulating switch DWK that mounts, diode 2D1,2D2,2D16 anode and capacitance Direct current power source voltage cathode (the V of 2C1 cathodes and contact as logical pressurize control latching circuit (1) output₊₁), reconnect two pole of voltage stabilizing One end of pipe 2WD2 anode and resistance 2R1, the other end and zener diode 2WD1 anode of resistance 2R1 simultaneously connect diode D5 anode With one end of electromagnetic relay J coils, the other end and diode D5 cathodes of electromagnetic relay J coils simultaneously connect 2D7 cathodes；Or Electromagnetic relay J is replaced with solid-state relay SSR, light emitting diode cathode in solid-state relay SSR (16 foot) is connected into voltage stabilizing Diode 2WD1 anode and resistance 2R1 tie points, light emitting diode anode (1 foot) connection resistance R6, electricity in solid-state relay SSR R6 other ends connection diode 2D7 cathodes are hindered, one end (the 10th foot) connection of bidirectional triode thyristor in solid-state relay SSR is normally opened The load-side of button CKA, the other end (the 8th foot) of bidirectional triode thyristor connects the power supply of normally opened button CKA in solid-state relay SSR Side；Diode 2D7 anode connect zener diode 2WD2 cathodes and resistance 2R2 one end, two pole of resistance 2R2 other ends connection voltage stabilizing Pipe 2WD1 cathodes and the inner of capacitance 2C1 anode and resistance R5 are used as the logical interior direct current site of pressurize control latching circuit (1) (V₊₃), the head end (a) of the outer end connection outer layer temp.-sensing wire RS of resistance R5, tail end (b) the connection resistance 2R4's of outer layer temp.-sensing wire RS Outer end is as the ground terminal (GND) for maintaining energization exclusive circuit (2), inner connection diode 2D3,2D4,2D17 of resistance 2R4 Cathode is as maintenance energization exclusive circuit (2) interior DC voltage anode (V_-1), diode 2D3 anode are as maintenance energization locking electricity One AC input on road (2) is connected to alternating current wires L₂On, diode 2D4 anode are as maintenance energization exclusive circuit (2) another AC input is connected to alternating current wires N₁On the 1st grade of the load-side of gear temperature regulating switch DWK that mounts Position, diode 2D17 anode are connected to alternating current wires N as the 3rd AC input of maintenance energization exclusive circuit (2)₂It The 2nd gear of load-side of the gear temperature regulating switch DWK of upper mounting；Diode 2D18 cathodes as half-wave power on unit (5) also connect It is connected on alternating current wires N₂On the 2nd gear of load-side of gear temperature regulating switch DWK that mounts, diode 2D18 anode are connected to friendship Galvanic electricity line N₁On the tail end (B) of internal layer heating wire WR and the 1st gear of load-side of gear temperature regulating switch DWK that mount；Gear The 3rd gear of load-side of temperature regulating switch DWK is vacant as power-off gear, and three gears of mains side of gear temperature regulating switch DWK are simultaneously Ac power input end (N) is connected after connection；The head end (A) of the internal layer heating wire WR is connected to alternating current wires L₂On mount Diode 2D3 anode and the load-side of normally opened button CKA and the load-side of electromagnetic relay J normally opened contacts；Described is normally opened The mains side of button CKA and the mains side of electromagnetic relay J normally opened contacts are through alternating current wires L₁One end of protective tube BX is connected, is protected The other end connection ac power input end (L) of dangerous pipe BX；The firewire of the AC power is defeated from ac power input end L Enter, the zero curve of AC power is inputted from ac power input end N, or exchange the input of AC power polarity, the zero of AC power Line is inputted from ac power input end L, the firewire of AC power is inputted from ac power input end N；Electromagnetic relay J coils lead to The electromagnetic force exported when electric directly controls electromagnetic relay J normally opened contacts and is attracted the AC power for connecting heating wire WR, Huo Zheyou The AC power of light (G) conduct energization hot line WR in solid-state relay SSR.

3. Dingan County's electric blanket out of control is protected in full blanket solar heat protection according to claim 1, it is characterised in that：The logical pressurize control Latching circuit (1) includes resistance 3R1,3R2,3R3, R5, R6, capacitance 3C1 and zener diode 3WD1,3WD2,3WD3, diode 3D1,3D2,3D6,3D7, D5,3D16, triode T1, T2 and electromagnetic relay J coils, or with solid-state relay SSR Light emitting diode series resistor R6 replaces electromagnetic relay J coils and diode D5；The lock-controlled switch (6) includes normally opened press Button CKA and electromagnetic relay J normally opened contacts, or it is normally opened with bidirectional triode thyristor replacement electromagnetic relay J in solid-state relay SSR Contact, or replace resistance 3R3 with posive temperature coefficient thermistor PTC；The maintenance energization exclusive circuit (2) includes two poles Pipe 3D3,3D4,3D17 and resistance 3R4；The temp.-sensing wire (3) is exactly outer layer temp.-sensing wire RS, and heating wire (4) is exactly internal layer electric heating Hot general character separation layer either heat leak sexual isolation layer or insulating properties are adapted between line WR, outer layer temp.-sensing wire RS and internal layer heating wire WR Separation layer, such as common nylon melt thermoplastic and belong to the spy that hot general character insolated layer materials have overheat fast thawing break-through short circuit soon 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 characteristics；The half-wave power on unit (5) is exactly diode 3D18, and the protective tube (7) is exactly melting with anti-short circuit current flow The protective tube BX of fracture of wire manufacture, the gear temperature regulating switch (9) is exactly the gear temperature regulating switch DWK for having three gears；Circuit Connection mode：The diode 3D1 cathodes are connected to friendship as an AC input of logical pressurize control latching circuit (1) Galvanic electricity line L₂On the load-side of normally opened button CKA and the load-side of electromagnetic relay J normally opened contacts that mount, diode 3D2 Cathode is connected to alternating current wires N as another AC input of logical pressurize control latching circuit (1)₁On the gear that mounts The 1st gear of load-side of temperature regulating switch DWK, threeth alternating current of the diode 3D16 cathodes as logical pressurize control latching circuit (1) Input terminal is connected to alternating current wires N₂On the 2nd gear of load-side of gear temperature regulating switch DWK that mounts, the diode The direct current power source voltage of 3D1,3D2,3D16 anode and capacitance 3C1 cathodes and contact as logical pressurize control latching circuit (1) output Cathode (V₊₁), reconnect zener diode 3WD1 anode and one end of resistance 3R1, two pole of other end connection voltage stabilizing of resistance 3R1 Pipe 3WD3 anode and triode T1 emitters, triode T1 base stages connection diode 3D7 cathodes, the connection of diode 3D7 anode are steady Press diode 3WD1 cathodes and one end of resistance 3R3, the other end connection zener diode 3WD2 anode and diode of resistance 3R3 3D6 cathodes, diode 3D6 anode connecting triode T2 base stages, triode T2 emitters connection zener diode 3WD3 cathodes and One end of resistance 3R2, the other end of resistance 3R2 connect the inner of zener diode 3WD2 cathodes, capacitance 3C1 anode and resistance R5 As the logical interior direct current site (V of pressurize control latching circuit (1)₊₃), the outer end connection outer layer temp.-sensing wire RS head ends (a) of resistance R5, Triode T1 collectors connect one end of diode D5 anode and electromagnetic relay J coils, the other end of electromagnetic relay J coils Triode T2 collectors are attempted by with diode D5 cathodes, or electromagnetic relay J is replaced with solid-state relay SSR, by solid-state Light emitting diode cathode (16 foot) connecting triode T1 collectors in relay SSR, light emitting diode is born in solid-state relay SSR Pole (1 foot) connects resistance R6, resistance R6 other end connecting triode T2 collectors, by bidirectional triode thyristor in solid-state relay SSR One end (the 10th foot) connect the load-side of normally opened button CKA, the other end the (the 8th of bidirectional triode thyristor in solid-state relay SSR Foot) the normally opened button CKA of connection mains side；The outer end of tail end (b) the connection resistance 3R4 of outer layer temp.-sensing wire RS is powered as maintenance The ground terminal (GND) of exclusive circuit (2), inner connection diode 3D3,3D4,3D17 cathode of resistance 3R4 are powered as maintenance The interior DC voltage anode (V of exclusive circuit (2)_-1), diode 3D3 anode are as an exchange for maintaining energization exclusive circuit (2) Electrical input is connected to alternating current wires L₂On, diode 3D4 anode are as another exchange for maintaining energization exclusive circuit (2) Electrical input is connected to alternating current wires N₁On the 1st gear of load-side of gear temperature regulating switch DWK that mounts, diode 3D17 bears Pole is connected to alternating current wires N as the 3rd AC input of maintenance energization exclusive circuit (2)₂On the gear temperature adjustment that mounts Switch the 2nd gear of load-side of DWK；Diode 3D18 cathodes as half-wave power on unit (5) are also connected to alternating current wires N₂It The 2nd gear of load-side of the gear temperature regulating switch DWK of upper mounting, diode 3D18 anode are connected to alternating current wires N₁On mount The tail end (B) of internal layer heating wire WR and the 1st gear of load-side of gear temperature regulating switch DWK；The load of gear temperature regulating switch DWK The 3rd gear of side is vacant as power-off gear, and it is defeated that AC power is connected after three gear parallel connections of mains side of gear temperature regulating switch DWK Enter end (N)；The head end (A) of the internal layer heating wire WR is connected to alternating current wires L₂On the diode 3D3 anode that mount and The load-side of normally opened button CKA and the load-side of electromagnetic relay J normally opened contacts；The mains side of the normally opened button CKA and The mains side of electromagnetic relay J normally opened contacts is through alternating current wires L₁One end of protective tube BX is connected, the other end of protective tube BX connects Connect ac power input end (L)；The firewire of the AC power is inputted from ac power input end L, the zero curve of AC power Inputted from ac power input end N, or exchange the input of AC power polarity, the zero curve of AC power is from ac power input end L inputs, the firewire of AC power are inputted from ac power input end N；The electromagnetic force that electromagnetic relay J coils export when being powered is straight Connect control electromagnetic relay J normally opened contacts and be attracted the AC power for connecting heating wire WR, or by light in solid-state relay SSR (G) AC power of conduct energization hot line WR.

4. Dingan County's electric blanket out of control is protected in full blanket solar heat protection according to claim 1, it is characterised in that：The logical pressurize control Latching circuit (1) includes safety control module IC, resistance 4R1,4R2,4R3, R5, R6, capacitance 4C1,4C2 and zener diode 4WD1,4WD2, diode 4D1,4D2, D5, D6,4D16 and electromagnetic relay J coils, or sent out with solid-state relay SSR Optical diode series resistor R6 replaces electromagnetic relay J coils and diode D5, or is replaced with posive temperature coefficient thermistor PTC Change resistance 4R2；The lock-controlled switch (6) includes normally opened button CKA and electromagnetic relay J normally opened contacts, or with solid-state after Bidirectional triode thyristor replaces electromagnetic relay J normally opened contacts in electric appliance SSR；The maintenance energization exclusive circuit (2) includes two poles Pipe 4D3,4D4,4D17 and resistance 4R4；The temp.-sensing wire (3) is exactly outer layer temp.-sensing wire RS, and heating wire (4) is exactly internal layer electric heating Hot general character separation layer or heat leak sexual isolation layer are adapted between line WR, outer layer temp.-sensing wire RS and internal layer heating wire WR, such as commonly Nylon melts thermoplastic and belongs to the characteristic that hot general character insolated layer materials have overheat fast thawing break-through short circuit, such as semiconductor Buddhist nun soon Imperial thermoplastic belongs to heat leak sexual isolation layer material with the bigger NTC characteristics of temperature more high impedance more Low dark curient；Described Half-wave power on unit (5) is exactly diode 4D18, and the protective tube (7) is exactly the insurance manufactured with the fusible link of anti-short circuit current flow Pipe BX, the gear temperature regulating switch (9) is exactly the gear temperature regulating switch DWK for having three gears；Circuit connecting mode：Described Diode 4D1 cathodes are connected to alternating current wires L as an AC input of logical pressurize control latching circuit (1)₂On hang The load-side of the normally opened button CKA connect and the load-side of electromagnetic relay J normally opened contacts, diode 4D2 cathodes are as logical pressurize Another AC input of control latching circuit (1) is connected to alternating current wires N₁On the gear temperature regulating switch DWK that mounts The 1st gear of load-side, diode 3D16 cathodes are connected to friendship as the 3rd AC input of logical pressurize control latching circuit (1) Galvanic electricity line N₂On the 2nd gear of load-side of gear temperature regulating switch DWK that mounts；Diode 4D1,4D2,4D16 anode With the direct current power source voltage cathode (V of capacitance 4C1 cathodes and contact as logical pressurize control latching circuit (1) output₊₁), reconnect steady Press diode 4WD1 anode and one end of resistance 4R2, the other end connection zener diode 4WD2 anode and capacitance of resistance 4R2 4C2 cathodes are as the interior direct current site (V of logical pressurize control latching circuit (1)₊₂) reconnect the DC power supply of safety control module IC Input positive terminal (V₊), zener diode 4WD2 cathodes connection resistance 4R1 one end and capacitance 4C1,4C2 anode are as logical pressurize control The interior direct current site (V of latching circuit (1)₊₃), the inner of reconnection resistance R5 and the DC supply input of safety control module IC Negative pole end (V_-), the head end (a) of the outer end connection outer layer temp.-sensing wire RS of resistance R5, the resistance 4R1 other ends and resistance 4R3 one end are simultaneously It is connected on the two input terminal (V of safety control module IC_i1、V_i2), resistance 4R3 other ends connection zener diode 4WD1 cathodes are described Safety control module IC in-phase output end (V_o1) connection diode D6 anode, diode D6 cathodes and diode D5 cathodes are simultaneously It is connected to electromagnetic relay J coils one end, electromagnetic relay J coils other end connection diode D5 anode and safety control module IC Reversed-phase output (V_o2)；Or electromagnetic relay J is replaced with solid-state relay SSR, by light-emitting diodes in solid-state relay SSR Reversed-phase output (the V of pipe cathode (16 foot) connection safety control module IC_o2), light emitting diode anode in solid-state relay SSR (1 foot) connects resistance R6, resistance R6 other ends connection diode D6 cathodes, and diode D6 anode connect safety control module IC's In-phase output end (V_o1), by the power supply of the normally opened button CKA of one end (the 8th foot) connection of bidirectional triode thyristor in solid-state relay SSR Side, the other end (the 10th foot) of bidirectional triode thyristor connects the load-side of normally opened button CKA in solid-state relay SSR；Outer layer temperature-sensitive Ground terminal (GND) of the outer end of tail end (b) the connection resistance 4R4 of line RS as maintenance energization exclusive circuit (2), resistance 4R4's The cathode of inner parallel diode 4D3,4D4,4D17 are as the DC voltage anode (V for maintaining energization exclusive circuit (2)_-1), two Pole pipe 4D3 anode are connected to alternating current wires L as an AC input of maintenance energization exclusive circuit (2)₂On, two poles Pipe 4D4 anode are connected to alternating current wires N as another AC input of maintenance energization exclusive circuit (2)₁On mount Gear temperature regulating switch DWK the 1st gear of load-side, diode 3D17 anode as maintain energization exclusive circuit (2) the 3rd AC input is connected to alternating current wires N₂On the 2nd gear of load-side of gear temperature regulating switch DWK that mounts；As half-wave The diode 4D18 cathodes of power on unit (5) are also connected to alternating current wires N₂On the load-side of gear temperature regulating switch DWK that mounts 2nd gear, diode 4D18 anode are connected to alternating current wires N₁On the tail end (B) and gear tune of the internal layer heating wire WR that mount The 1st gear of load-side of temperature switch DWK, the 3rd gear of load-side of gear temperature regulating switch DWK are vacant as power-off gear, gear Ac power input end (N) is connected after three gear parallel connections of mains side of temperature regulating switch DWK；The head of the internal layer heating wire WR End (A) is connected to alternating current wires L₂On the load-side and electromagnetic relay of the diode 4D3 anode that mount and normally opened button CKA The load-side of J normally opened contacts；The mains side of the normally opened button CKA and the mains side of electromagnetic relay J normally opened contacts are through handing over Galvanic electricity line L₁Connect one end of protective tube BX, the other end connection ac power input end (L) of protective tube BX；The alternating current The firewire in source is inputted from ac power input end L, the zero curve of AC power is inputted from ac power input end N, or is exchanged and handed over Galvanic electricity source polarity inputs, and the zero curve of AC power is defeated from AC power from the firewire of ac power input end L inputs, AC power Enter to hold N to input；The electromagnetic force that electromagnetic relay J coils export when being powered directly controls the actuation of electromagnetic relay J normally opened contacts and connects The AC power of energization hot line WR, or the AC power by light (G) conduct energization hot line WR in solid-state relay SSR.

5. Dingan County's electric blanket out of control, including heating wire (4), protective tube BX, power switch DK, electric heating temperature control are protected in full blanket solar heat protection Circuit (10) processed, it is characterised in that：Further include logical pressurize control latching circuit (1), maintain energization exclusive circuit (2), temp.-sensing wire (3), lock-controlled switch (6), disconnection protection circuit (8)；The logical pressurize control latching circuit (1), maintain energization exclusive circuit (2), temp.-sensing wire (3) is closed using the logical pressurize control latching circuit (1) described in claim 1 or claim 2 to 4, maintenance energization The technical solution of lock circuit (2), temp.-sensing wire (3)；It is normal that the lock-controlled switch (6) includes normally opened button CKA and electromagnetic relay J Open contact and electromagnetic relay Jb left sides normally opened contact；The disconnection protection circuit (8) include diode 5D11 to 5D14, 5D9, capacitance 5C5, electromagnetic relay Jb；Circuit connecting mode：Two alternating currents of the logical pressurize control latching circuit (1) are defeated Enter end and be separately connected across alternating current wires L₅With alternating current wires N₁Between, lead to the interior resistance R5 outer ends connection sense of pressurize control latching circuit (1) Warm line (3) head end (a), leads to the direct current power source voltage cathode (V of pressurize control latching circuit (1) output₊₁) connection electric heating temperature control The DC supply input positive terminal of circuit (10), leads to the interior direct current site (V of pressurize control latching circuit (1)₊₃) connection electric heating temperature Interior signal input part (the V of control circuit (10)_in), ground terminal (GND) the connection temp.-sensing wire of the maintenance energization exclusive circuit (2) (3) ground terminal (GND) of tail end (b) and electric heating temperature-control circuit (10), maintains two alternating currents of energization exclusive circuit (2) Input terminal is also separately connected across alternating current wires L₅With alternating current wires N₁Between；Fitted between the temp.-sensing wire (3) and heating wire (4) Thermoplastic is melted soon and is belonged to hot general character insolated layer materials with hot general character separation layer or heat leak sexual isolation layer, such as common nylon 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 characteristics of high impedance more Low dark curient；The corresponding bridging respectively of the head end (A) and tail end (B) of the heating wire (4) In alternating current wires L₃With alternating current wires N₂Between；One exchange of the interior temperature control performer of electric heating temperature-control circuit (10) End connection alternating current wires N₁, another exchange end connection alternating current wires N₂；The load-side of the power switch DK is connected to alternating current Line N₁On, its mains side connection ac power input end N；In the lock-controlled switch (6) mains side of normally opened button CKA and The mains side connection alternating current wires L of electromagnetic relay J normally opened contacts₁With one end of protective tube BX, the other end of protective tube BX connects Meet ac power input end L, the load-side of normally opened button CKA is through alternating current wires L in lock-controlled switch (6)₂Connect breaking protection electricity The interior diode 5D11 cathodes in road (8) and diode 5D12 anode and the left side normally opened contact of electromagnetic relay Jb and/or the right are normal Open the mains side of contact, the load-side connection electromagnetic relay J normally opened contacts of left side normally opened contact is negative in electromagnetic relay Jb Side is carried, the load-side of electromagnetic relay Jb the right normally opened contact is connected to alternating current wires L₅On, in electromagnetic relay Jb The left side and two groups of the right normally opened contact only select one of which, and the direct short circuit in both ends of no another group of normally opened contact connects It is logical；One end of the electromagnetic relay Jb coils simultaneously connects diode 5D11,5D14,5D9 anode and capacitance 5C5 cathodes as disconnected Line protects circuit (8) high-end (V of interior DC voltage₊₅), the other end of electromagnetic relay Jb coils and connect diode 5D12,5D13, 5D9 cathodes and capacitance 5C5 anode are as the interior DC voltage low side (V of disconnection protection circuit (8)₊₄)；Alternating current wires L₃One end connect Meet diode 5D14 cathodes and diode 5D13 anode, alternating current wires L₃The other end connection internal layer heating wire (4) head end (A)；The firewire of the AC power is inputted from ac power input end L, the zero curve of AC power is from ac power input end N Input, or exchange the input of AC power polarity, the zero curve of AC power is from ac power input end L inputs, AC power Firewire is inputted from ac power input end N；The electromagnetic force that electromagnetic relay J coils export when being powered directly controls electromagnetic relay J normally opened contacts are attracted the AC power for connecting heating wire WR；The electromagnetic force that electromagnetic relay Jb coils export when being powered directly is controlled The left side normally opened contact and/or the right normally opened contact of electromagnetic relay Jb processed, which is attracted, to be connected logical pressurize control latching circuit (1) and maintains The AC power of energization exclusive circuit (2).

6. Dingan County's electric blanket out of control, including heating wire (4), protective tube BX, power switch DK, electric heating temperature control are protected in full blanket solar heat protection Circuit (10) processed, it is characterised in that：Further include logical pressurize control latching circuit (1), maintain energization exclusive circuit (2), temp.-sensing wire (3), lock-controlled switch (6), disconnection protection circuit (8)；The logical pressurize control latching circuit (1), maintain energization exclusive circuit (2), temp.-sensing wire (3) is closed using the logical pressurize control latching circuit (1) described in claim 1 or claim 2 to 4, maintenance energization The technical solution of lock circuit (2), temp.-sensing wire (3)；It is normal that the lock-controlled switch (6) includes normally opened button CKA and electromagnetic relay J Open contact；The disconnection protection circuit (8) includes diode 6D11 to 6D14, capacitance 6C5, resistance 6R8, photoelectrical coupler 6RD and curtage mutual inductor 6HGQ；Circuit connecting mode：Two exchanges of the logical pressurize control latching circuit (1) Electrical input is separately connected across alternating current wires L₅With alternating current wires N₁Between, lead to the interior resistance R5 outer ends of pressurize control latching circuit (1) and connect Temp.-sensing wire (3) head end (a) is connect, leads to the direct current power source voltage cathode (V of pressurize control latching circuit (1) output₊₁) connection electric heating temperature The DC supply input positive terminal of control circuit (10), leads to the interior direct current site (V of pressurize control latching circuit (1)₊₃) connection electric heating Interior signal input part (the V of temperature-control circuit (10)_in), ground terminal (GND) the connection sense of the maintenance energization exclusive circuit (2) The ground terminal (GND) of warm line (3) tail end (b) and electric heating temperature-control circuit (10), maintains two friendships of energization exclusive circuit (2) Galvanic electricity input terminal is also separately connected across alternating current wires L₅With alternating current wires N₁Between；The temp.-sensing wire (3) and heating wire (4) it Between applied heat general character separation layer or heat leak sexual isolation layer, such as common nylon soon melt thermoplastic belong to hot general character separation layer Material has the characteristic of overheat fast thawing break-through short circuit, such as semiconductor nylon thermoplastic's material belongs to heat leak sexual isolation layer material tool There are the bigger NTC characteristics of temperature more high impedance more Low dark curient；The head end (A) and tail end (B) of the heating wire (4) correspond to respectively It is connected across alternating current wires L₃With alternating current wires N₂Between；The one of the interior temperature control performer of electric heating temperature-control circuit (10) Exchange end connection alternating current wires N₁, another exchange end connection alternating current wires N₂；The load-side of the power switch DK is connected to friendship Galvanic electricity line N₁On, the mains side connection ac power input end N of power switch DK；It is normally opened in the lock-controlled switch (6) to press The mains side of button CKA connects alternating current wires L with the mains side of electromagnetic relay J normally opened contacts₁With one end of protective tube BX, insurance The other end connection ac power input end L of pipe BX, the load-side and electromagnetic relay J of normally opened button CKA in lock-controlled switch (6) The load-side tie point of normally opened contact is through alternating current wires L₂Reconnect photosensitive in disconnection protection circuit (8) interior photoelectrical coupler 6GD Bidirectional triode thyristor one end and curtage mutual inductor 6HGQ armature windings one end, it is photosensitive two-way controllable in photoelectrical coupler 6GD Silicon one end connection alternating current wires L₅, the curtage mutual inductor 6HGQ armature windings other end is through alternating current wires L₃Connect internal layer electricity The head end (A) of hot line (4), secondary windings n2 one end connection diode 6D11 cathodes of curtage mutual inductor 6HGQ and two poles Pipe 6D12 anode, secondary windings n2 other ends connection diode 6D14 cathodes and diode 6D13 anode, diode 6D11,6D14 Anode and capacitance 6C5 cathodes and contact is as disconnection protection circuit (8) high-end (V of interior DC voltage₊₅) reconnect resistance 6R8 mono- End, the resistance 6R8 other ends connect light emitting diode cathode in photoelectrical coupler 6GD, and light emitting diode is born in photoelectrical coupler 6GD Pole connects diode 6D12,6D13 cathode and capacitance 6C3 anode as the interior DC voltage low side (V of disconnection protection circuit (8)₊₄)； The firewire of the AC power is inputted from ac power input end L, the zero curve of AC power is defeated from ac power input end N Enter, or exchange the input of AC power polarity, the zero curve of AC power is from ac power input end L inputs, the fire of AC power Line is inputted from ac power input end N；The electromagnetic force that electromagnetic relay J coils export when being powered directly controls electromagnetic relay J Normally opened contact is attracted the AC power for connecting heating wire WR；The light intensity (G) of light emitting diode energization transmitting in photoelectrical coupler 6GD Directly control the logical pressurize control latching circuit (1) of bidirectional triode thyristor conducting in photoelectrical coupler 6GD and maintain energization exclusive circuit (2) AC power.