CN101274121A

CN101274121A - Polar pulse magnetic and far infrared radiation composite energy therapeutic equipment with two-way switchable outputs

Info

Publication number: CN101274121A
Application number: CNA2008100497894A
Authority: CN
Inventors: 胡立武; 刘玉镯
Original assignee: 胡立武; 刘玉镯
Current assignee: Qingdao Kaiteng Electronics Co., Ltd.
Priority date: 2008-05-19
Filing date: 2008-05-19
Publication date: 2008-10-01
Anticipated expiration: 2028-05-19
Also published as: CN100579605C

Abstract

The invention relates to a pulse magnetic far infrared radiation composite energy therapeutic instrument with shifted dual-path outputting polarity, which effectively overcomes the shortages of the existing therapeutic instrument and realizes disease treatment by acupuncture points. The structure of the composite energy therapeutic instrument is characterized in that the energy output end of a control part is connected with the input end of an energy emitter by an energy output lead; the control part consists of a box body and a control circuit which is arranged in the box body; the side wall of the box body is provided with pulse magnetic output polarity switch and an energy output lead; the upper cover of the box body is provided with a time adjusting button, a starting button, an energy adjusting and power supply switch; the energy emitter is composed of a shell, a tank-shaped magnetic core which is arranged in the shell, and an insulated lacquering electrifying coil which is sheathed on a magnetic column arranged in the internal chamber of the magnetic core; an energy disc is arranged on the energy emitter; a temperature control switch is arranged in the shell of the energy emitter closely to the external wall of a tank-shaped magnetic core pouring box; the control wire of the temperature control switch is connected in parallel with a resistance wire and is connected with the energy output end of the control part by the the energy output lead. The pulse magnetic far infrared radiation composite energy therapeutic instrument has novel and unique structure and huge economic and social benefits.

Description

The pulsed magnetic far infrared radiation energy composite energy therapeutic equipment of two-way switchable output polarity

First, technical field

The present invention relates to medicine equipment, the pulsed magnetic far infrared radiation energy composite energy therapeutic equipment of particularly a kind of two-way switchable output polarity.

2nd, background technology

With the development of science and technology, magnetic therapy, electrotherapy are used widely in treatment human body diseases, in the market has various physical therapy apparatuses, but for various reasons, if any complex structure, be worth it is more expensive, some functions are simple, curative effect is poor, have due to unreasonable in structure, particularly Magnetic Field Design is unreasonable, it is difficult to stimulate human acupoint, curative effect is not good enough, what is had is unable to switching field direction, it is impossible to which diagnosis and treatment based on an overall analysis of the illness and the patient's condition, some circuit designs are unreasonable, antijamming capability is poor, using effect is influenceed, therefore, existing therapeutic equipment is urgently reformed and improved.

3rd, the content of the invention

For above-mentioned situation, the purpose of the present invention is just to provide a kind of pulsed magnetic far infrared radiation energy composite energy therapeutic equipment of new two-way switchable output polarity, the deficiency of existing therapeutic equipment can effectively be overcome, pass through human acupoint diagnosis and treatment based on an overall analysis of the illness and the patient's condition, realize the treatment problem to human body diseases, the present invention includes control section and energy emitter, input of the energy output end of control section through the co-energy transmitter of energy output lead is connected, described control section is made up of casing and Qi Nei control circuit, there are pulsed magnetic output polarity switching switch and energy output lead on wall box, there is time adjusting knob on box cover, start button, energy adjustment knob and power switch, described energy emitter is made up of the insulation enamel-cover hot-wire coil being set with housing and its interior pot core and magnetic core inner chamber magnetic pole, poured into and solidified integrally with pot core by epoxy resin in the surrounding volume of insulation enamel-cover hot-wire coil, it has energy disk above, it is close to the outer wall of the filling box of pot core in the housing of energy emitter built with temperature detect switch (TDS), on two control lines of temperature detect switch (TDS) and it is connected to resistance wire, and be connected through energy output lead with the energy output end of control section.Structure novel and unique of the present invention, easy to use, two-way switchable output pulse magnetic polarity far infrared radiation energy composite energy therapeutic equipment, therapeutic effect is good, and scientific structure, easily production, economic and social benefit are huge.

4th, illustrate

Fig. 1 is structural perspective of the invention.

Fig. 2 is the sectional front view of the energy emitter of the present invention.

Fig. 3 is electric operation control circuit figure of the invention.

5th, embodiment

The embodiment of the present invention is elaborated below in conjunction with accompanying drawing.

Provided by Fig. 1-3,The present invention includes control section and energy emitter,The energy output end of control section is through

energy output lead

3,4 co-energy transmitters 1,2 input is connected,Described control section is made up of casing 16 and Qi Nei control circuit,Wall box has pulsed magnetic output

polarity switching switch

13,14 and

energy output lead

3,4,There is time adjusting knob 6 on box cover 12,Start button 7,Energy adjustment knob 5 and power switch 8,Described energy emitter 1,2 are made up of the insulation enamel-cover hot-wire coil 18 being set with housing 24 and its interior pot core 19 and pot core inner chamber magnetic pole,Poured into and solidified integrally with pot core by epoxy resin in the surrounding volume of insulation enamel-cover hot-wire coil 18,It has energy emitter 1 above,2 energy disk 20,It is close to the outer wall of pot core in embedding housing 24 built with temperature detect switch (TDS) 21,On two control lines of temperature detect switch (TDS) and it is connected to resistance wire 22,And through

energy output lead

3,4 are connected with the output end of the control circuit of control section,The input of control circuit is connected by wire 15 with power supply,Described control circuit is by filter circuit,Timing and time adjustment circuit,Power supply and power indicating circuit,Pulse-triggered and pulse frequency regulation circuit,Insulation triggering circuit,Accumulator,Isolate gate circuit,Pulsed magnetic polarity switching,Indicate and pulse magnetic energy raddiating circuit,Temperature-control circuit and startup timing working circuit are constituted,Filter circuit inputs the input of termination power and power indicating circuit,The input of filter circuit output termination isolating door circuit input end and accumulator,Timing and time adjustment circuit are connected with pulse-triggered and pulse frequency regulation circuit,And be connected with insulation triggering circuit with isolation gate circuit,Pulsed magnetic polarity switching,Instruction and the input termination accumulator and the output end of insulation triggering circuit of pulse magnetic energy raddiating circuit,Start timing working circuit through resistance in parallel,Electric capacity connects working power,Pulsed magnetic polarity switching,Indicate and pulse magnetic energy raddiating circuit output end connects energy emitter input through temperature-control circuit.

In order to ensure using effect, power supply indicator 11,

energy indicator lamp

9,10 are sequentially arranged with the upper lid 12 of described casing 16.

The energy disk 20 of described energy emitter 1,2 is to be evenly distributed with heat emission hole 17 in the round being made up of the silicon rubber containing nano-far-infrared powder, its plane.

In foregoing circuit, described filter circuit is by resistance R₁, electric capacity C₁、C₂, coil LP₁Constitute；Power supply and power indicating circuit are by electric capacity CL₁, resistance R₂, transformer T₁, commutation diode D₅、D₆、D₇、D₈, electrochemical capacitor E₁、E₂, electric capacity C₃、C₄, three terminal regulator Q₂, resistance R₃, light emitting diode L₁Constitute；Timing and time adjustment circuit are by resistance R₅, adjustable resistance RP₁, electrochemical capacitor E₅, when base chip U₁Constitute；Pulse-triggered and the electric routing resistance R of pulse frequency regulation₈, adjustable resistance RP₂, resistance R₉, diode D₁₃, electrochemical capacitor E₃, diode D₁₂, when base chip U₁Constitute；Insulation triggering circuit is by resistance R₄, photoelectrical coupler U₂, resistance R₁₄、R₁₇, controllable silicon Q₁Constitute；Accumulator is by commutation diode D₁、D₂、D₃、D₄, electrochemical capacitor E₄Constitute；Isolate gate circuit by controllable silicon Q₃, triode Q₄, photoelectrical coupler U₃, resistance R₁₅、R₁₆Constitute；Pulsed magnetic polarity switching, instruction and pulse magnetic energy raddiating circuit are by diode D₉、D₁₀、D₁₁, pulsed magnetic output polarity switching switch S₁、S₂, resistance R₁₀、R₁₁、R₁₂、R₁₃, light emitting diode L₂、L₃, insulation enamel-cover hot-wire coil XQ₁、XQ₂Constitute；Temperature-control circuit is by TSW₁、TSW₂、R₁₈、R₁₉Constitute；Start timing working circuit by start button S₃, resistance R₆, when base chip U₁Constitute.

Described controllable silicon Q₃For BT139, photoelectrical coupler U₂、U₃For MOC3021, when base chip U₁For NE556, three terminal regulator Q₂For 7805, wherein, controllable silicon Q ₃2 pin with power switch S₄, power supply AC (220V), transformer T₁Primary is connected, controllable silicon Q ₃3 pin with photoelectrical coupler U ₃4 pin be connected, controllable silicon Q₃1 pin with resistance R₂, electric capacity CL₁It is connected, photoelectrical coupler U ₃6 pin through resistance R₁₆With electric capacity C₂With coil LP₁It is connected, coil LP₁Through fuse F₁With power switch S₄It is connected with power supply AC, photoelectrical coupler U₃1 pin through resistance R₁₅It is connected with working power Vcc, photoelectrical coupler U ₃2 pin meet triode Q₄Emitter stage, triode Q₄Grounded collector, base stage connecting resistance R₄With when base chip U ₁9 pin, photoelectrical coupler U ₂2 pin ground connection, 1 pin connecting resistance R₄, 6 pin connecting resistance R₁₄, 4 pin connecting resistance R₁₇And controllable silicon Q₁, when base chip U ₁5 pin, 10 pin parallel connection through resistance R₇Ground connection, there is ground capacity C between 7 pin, 11 pin₅, 2 pin meet electrochemical capacitor E₅With adjustable resistance RP₁, the activated button S of 6 pin₃Ground connection, and with resistance R₆, electric capacity C₈It is connected, 4 pin, the parallel connection of 14 pin are through electric capacity C₇Ground connection, and with working power Vcc, resistance R₆, electric capacity C₈With resistance R₅Be connected, when base chip U ₁8 pin through electrochemical capacitor E₃Ground connection, and with diode D₁₂、D₁₃It is connected, 13 pin are with diode D₁₂Positive pole and resistance R₈, adjustable resistance RP₂It is connected, resistance R₈Meet working power Vcc, diode D₁₃Negative pole is through resistance R₉With adjustable resistance RP₂It is connected, commutation diode D₁-D₄Bridge rectifier is constituted, its input is respectively with electric capacity C₁、C₂, resistance R₁And electric capacity CL₁, resistance R₂Be connected, its output end respectively with electrochemical capacitor E₄, controllable silicon Q₁, resistance R₁₇, diode D₉It is connected, diode D₉With controllable silicon Q₁It is in series, three terminal regulator Q₂1 pin meets electric capacity C₁, electrochemical capacitor E₁And by commutation diode D₅-D₈The output end of the bridge rectifier of composition, transformer T₁Secondary is connect by commutation diode D₅-D₈The input of the bridge rectifier of composition, three terminal regulator Q ₂2 pin ground connection, 3 pin are through electrochemical capacitor E₂, electric capacity C₄Ground connection, and be connected with working power Vcc, the resistance R that working power Vcc is concatenated₃, light emitting diode L₁(i.e. 11 in Fig. 1) it is grounded, pulsed magnetic output polarity switching switch S₁、S₂The input of (i.e. 13,14 in Fig. 1) is with by commutation diode D₁-D₄The bridge rectifier output end of composition is connected, two pulsed magnetic output polarities switching switch S₁、S₂Between be equipped with resistance R₁₄Connected diode D₁₀、D₁₁, pulsed magnetic output polarity switching switch S₁Resistance R is connected in output end respectively₁₂、R₁₃And light emitting diode L₂, pulsed magnetic output polarity switching switch S₂Resistance R is connected in output end respectively₁₀、R₁₁And light emitting diode L₃, the circuit in described housing 24 is by insulation enamel-cover hot-wire coil XQ₁、XQ₂And temperature detect switch (TDS) TSW₁、TSW₂With resistance R₁₈、R₁₉Constitute, insulation enamel-cover hot-wire coil XQ₁The resistance R of parallel connection is connected on one end₁₈, its input is with pulsed magnetic output polarity switching switch S₁Output end be connected, insulation enamel-cover hot-wire coil XQ₂The temperature detect switch (TDS) TSW of parallel connection is connected on one end₂, resistance R₁₉, input is with pulsed magnetic output polarity switching switch S₂Output end be connected.

Insulate enamel-cover hot-wire coil XQ₁、QX₂That is 18 in Fig. 2, temperature detect switch (TDS) TSW₁、TSW₂That is 21, R in Fig. 2₁₉That is 22 in Fig. 2.

The working condition of the present invention is, when pressing power switch S₄After (8 i.e. in figure) power on, alternating current (AC) 220V is through R₁、C₁、C₂、LP₁After filtering, due to not pressing start button S₃(i.e. 7 in Fig. 1), U₁-U₉Export low level, Q₄、U₃Normal open, electric current is through CL₁、R₃, step-down current limliting after by D₁、D₂、D₃、D₄Rectification is to E₄Energy storage, while alternating current is by transformer T₁By D after transformation₅、D₆、D₇、D₈Rectification；E₁、C₃、Q₂、E₂、C₄、Q₂Through R after filtering voltage regulation₃Power supply indicator L is lighted after current limliting₁, indication circuit power unit normal ON.Regulating time regulation potentiometer RP₁(i.e. 6 in Fig. 1), set the working time, press start button S₃, timing circuit start-up operation.U₁-U₉Export impulse level, when being output as high level, U₂Connect, electrochemical capacitor E₄Institute's storing up electricity can be through XQ₁、XQ₂、Q₁、L₂、L₃Bleed off rapidly, so that in XQ₁、XQ₂One pulsed magnetic field of upper generation, while Q₄Low level is exported, makes U₃、Q₃Close, cut off E₄Charging circuit, make Q₁Fully cut-off, substantially increases the antijamming capability of circuit；Meanwhile, switch S₁、S₂Switch, thus it is possible to vary flow through XQ₁、XQ₂The sense of current, that is, change XQ₁、XQ₂The magnetic direction of generation, L is flowed through while also changing₂、L₃The sense of current, L₂、L₃The color of (i.e. 9,10 in Fig. 1) changes, and indicates current XQ₁、XQ₂Polarity of the magnetic field.Work as U₁-U₉When exporting low level, U₂、Q₁Cut-off, Q₃、Q₄、U₃Conducting, electric current is through CL₁、R₃It is depressured after current limliting by D₁、D₂、D₃、D₄Rectification is to E₄Energy storage, waits U₁-U₉Level.Adjust RP₂(i.e. 5 in Fig. 1) can change the triggering frequency of pulsed triggering circuit, when frequency is higher, E₄Institute's storing up electricity can smaller, XQ₁、XQ₂Magnetic field intensity it is lower, XQ₁、XQ₂The temperature of generation is lower, and far infrared radiation amount is lower；When frequency is lower, E₄Institute's storing up electricity can be bigger, XQ₁、XQ₂Magnetic field intensity it is higher, XQ₁、XQ₂The temperature of generation is higher, and far infrared radiation amount is higher, when temperature is more than TSW₁、TSW₂Design temperature when, TSW₁、TSW₂Contact disconnects automatically, and electric current is through resistance R₁₈、R₁₉Current limliting is to XQ₁、XQ₂, make XQ₁、XQ₂The temperature reduction of generation, works as XQ₁、XQ₂The temperature of generation is less than TSW₁、TSW₂During design temperature, TSW₁、TSW₂Contact automatically inhale and, so as to realize XQ₁、XQ₂Temperature is automatically controlled；Timing is arrived, U₁-U₉Impulse level is no longer exported, low level is exported always, next work period is waited.

Described energy emitter, its working time is 0-40 minutes, and the magnetic impulse frequencies of generation are 3-10Hz, and pulsewidth 5mS, pulsed magnetic field intensity is 0.1-0.3T, and the far infrared radiation wavelength of generation is 2-18 μm, and the surface temperature of nano-far-infrared energy disk is 40-60 DEG C.

The advantage of the invention is that：Because control circuit is all installed in host shell, away from high magnetic, the energy emitter of hyperpyrexia, host circuit is worked among safe and reliable environment；Forceful electric power, light current isolation technology and isolating door turn-off technique are employed, makes circuit safety reliable, strong antijamming capability；And employ the capacitance decompression current limiting technique of forceful electric power, the digital-analog hybrid circuit of light current, make whole instrument that there is low cost, it is lightweight, convenient for the user to operate many advantages, such as.Electronic timing circuit, working time is more importantly employed to be set by the user；Two-way energy emitter output circuit, output pulse magnetic-synchro, adjustable, magnetic direction can single any switching laws, facilitate user to use saturating magnetotherapy, pulsed magnetic field energy is reached deeper focus in patient's body.The pulsed magnetic field of changeable polarity, the energy composite energy therapeutic equipment of far infrared radiation are a kind of therapeutic equipments that is safe and reliable, economic and practical, being easy to operation.

Claims

1,A kind of pulsed magnetic far infrared radiation energy composite energy therapeutic equipment of two-way switchable output polarity,Include control section and energy emitter,It is characterized in that,The energy output end of control section is through the co-energy transmitter (1 of energy output lead,2) input is connected,Described control section is made up of casing (16) and the control circuit in it,Wall box has energy switching switch (13,14) with energy output lead (3,4),There is time adjustment button (6) on box cover (12),Start button (7),Energy adjustment (5) and power switch (8),Described energy emitter (1,2) it is to be made up of the insulation enamel-cover hot-wire coil (18) being set with housing (24) and its interior pot core (19) and pot core inner chamber magnetic pole,Poured into and solidified integrally with pot core by epoxy resin in the surrounding volume of insulation enamel-cover hot-wire coil (18),It has energy emitter (1 above,2) energy disk (20),It is close to the outer wall of the filling box of pot core in the housing (24) of energy emitter built with temperature detect switch (TDS) (21),On two control lines of temperature detect switch (TDS) and it is connected to resistance wire (22),And through energy output lead (3,4) it is connected with the energy output end of control section,The input of circuit is controlled to be connected by wire (15) with power supply,Described control circuit is by filter circuit,Timing and time adjustment circuit,Power supply and power indicating circuit,Pulse-triggered and pulse frequency regulation circuit,Insulation triggering circuit,Accumulator,Isolate gate circuit,Pulsed magnetic polarity switching,Indicate and pulse magnetic energy raddiating circuit,Temperature-control circuit and startup timing working circuit are constituted,Filter circuit inputs the input of termination power and power indicating circuit,The input of filter circuit output termination isolating door circuit input end and accumulator,Timing and time adjustment circuit are connected with pulse-triggered and pulse frequency regulation circuit,And be connected with insulation triggering circuit with isolation gate circuit,Pulsed magnetic polarity switching,Instruction and the input termination accumulator and the output end of insulation triggering circuit of pulse magnetic energy raddiating circuit,Start timing working circuit through resistance in parallel,Electric capacity connects working power,Pulsed magnetic polarity switching,Indicate and pulse magnetic energy raddiating circuit output termination energy emitter input.

2nd, the pulsed magnetic far infrared radiation energy composite energy therapeutic equipment of two-way switchable output polarity according to claim 1, characterized in that, being sequentially arranged with power supply indicator (11), energy indicator lamp (9,10) on the upper lid (12) of described casing (16).

3rd, the pulsed magnetic far infrared radiation energy composite energy therapeutic equipment of two-way switchable output polarity according to claim 1, it is characterized in that, the energy disk (20) of described energy emitter (1,2) is that heat emission hole (17) is evenly distributed with the round being made up of the silicon rubber containing nano-far-infrared powder, its plane.

4th, the pulsed magnetic far infrared radiation energy composite energy therapeutic equipment of two-way switchable output polarity according to claim 4, it is characterised in that described filter circuit is by resistance R₁, electric capacity C₁、C₂, coil LP₁Constitute；Power supply and power indicating circuit are by electric capacity CL₁, resistance R₂, transformer T₁, commutation diode D₅、D₆、D₇、D₈, electrochemical capacitor E₁、E₂, electric capacity C₃、C₄, three terminal regulator Q₂, resistance R₃, light emitting diode L₁Constitute；Timing and time adjustment circuit are by resistance R₅, adjustable resistance RP₁, electrochemical capacitor E₅, when base chip U₁Constitute；Pulse-triggered and the electric routing resistance R of pulse frequency regulation₈, adjustable resistance RP₂, resistance R₉, diode D₁₃, electrochemical capacitor E₃, diode D₁₂, when base chip U₁Constitute；Insulation triggering circuit is by resistance R₄, photoelectrical coupler U₂, resistance R₁₄、R₁₇, controllable silicon Q₁Constitute；Accumulator is by commutation diode D₁、D₂、D₃、D₄, electrochemical capacitor E₄Constitute；Isolate gate circuit by controllable silicon Q₃, triode Q₄, photoelectrical coupler U₃, resistance R₁₅、R₁₆Constitute；Pulsed magnetic polarity switching, instruction and pulse magnetic energy raddiating circuit are by diode D₉、D₁₀、D₁₁, pulsed magnetic output polarity switching switch S₁、S₂, resistance R₁₀、R₁₁、R₁₂、R₁₃, light emitting diode L₂、L₃, insulation enamel-cover hot-wire coil XQ₁、XQ₂Constitute；Start timing working circuit by start button S₃, resistance R₆, when base chip U₁Constitute, wherein, controllable silicon Q₃2 pin with power switch S₄, power supply AC, transformer T₁Primary is connected, controllable silicon Q₃3 pin with photoelectrical coupler U₃4 pin be connected, controllable silicon Q₃1 pin with resistance R₂, electric capacity CL₁It is connected, photoelectrical coupler U₃6 pin through resistance R₁₆With electric capacity C₂With coil LP₁It is connected, coil LP₁Through fuse F₁With power switch S₄It is connected with power supply AC, photoelectrical coupler U₃1 pin through resistance R₁₅It is connected with working power Vcc, photoelectrical coupler U₃2 pin meet triode Q₄Emitter stage, triode Q₄Grounded collector, base stage connecting resistance R₄With when base chip U₁9 pin, photoelectrical coupler U₂2 pin ground connection, 1 pin connecting resistance R₄, 6 pin connecting resistance R₁₄, 4 pin connecting resistance R₁₇And controllable silicon Q₁, when base chip U₁5 pin, 10 pin parallel connection through resistance R₇Ground connection, there is ground capacity C between 7 pin, 11 pin₅, 2 pin meet electrochemical capacitor E₅With adjustable resistance RP₁, the activated button S of 6 pin₃Ground connection, and with resistance R₆, electric capacity C₈It is connected, 4 pin, the parallel connection of 14 pin are through electric capacity C₇Ground connection, and with working power Vcc, resistance R₆, electric capacity C₈With resistance R₅Be connected, when base chip U₁8 pin through electrochemical capacitor E₃Ground connection, and with diode D₁₂、D₁₃It is connected, 13 pin are with diode D₁₂Positive pole and resistance R₈, adjustable resistance RP₂It is connected, resistance R₈Meet working power Vcc, diode D₁₃Negative pole is through resistance R₉With adjustable resistance RP₂It is connected, commutation diode D₁-D₄Bridge rectifier is constituted, its input is respectively with electric capacity C₁、C₂, resistance R₁And electric capacity CL₁, resistance R₂Be connected, its output end respectively with electrochemical capacitor E₄, controllable silicon Q₁, resistance R₁₇, diode D₉It is connected, diode D₉With controllable silicon Q₁It is in series, three terminal regulator Q₂1 pin meets electric capacity C₁, electrochemical capacitor E₁And by commutation diode D₅-D₈The output end of the bridge rectifier of composition, transformer T₁Secondary is connect by commutation diode D₅-D₈The input of the bridge rectifier of composition, three terminal regulator Q₂2 pin ground connection, 3 pin are through electrochemical capacitor E₂, electric capacity C₄Ground connection, and be connected with working power Vcc, the resistance R that working power Vcc is concatenated₃, light emitting diode L₁Ground connection, pulsed magnetic output polarity switching switch S₁、S₂Input with by commutation diode D₁-D₄The bridge rectifier output end of composition is connected, two pulsed magnetic output polarities switching switch S₁、S₂Between be equipped with resistance R₁₄Connected diode D₁₀、D₁₁, pulsed magnetic output polarity switching switch S₁Resistance R is connected in output end respectively₁₂、R₁₃And light emitting diode L₂, pulsed magnetic output polarity switching switch S₂Resistance R is connected in output end respectively₁₀、R₁₁And light emitting diode L₃, the circuit in described housing (24) is by insulation enamel-cover hot-wire coil XQ₁、XQ₂And temperature detect switch (TDS) TSW₁、TSW₂With resistance R₁₈Constitute, insulation enamel-cover hot-wire coil XQ₁The resistance R of parallel connection is connected on one end₁₈, its input is with pulsed magnetic output polarity switching switch S₁Output end be connected, insulation enamel-cover hot-wire coil XQ₂The temperature detect switch (TDS) TSW of parallel connection is connected on one end₂, resistance R₁₉, input is with pulsed magnetic output polarity switching switch S₂Output end be connected.