CN209086339U - Detect the circuit of power supply unit output electric energy - Google Patents

Abstract

The utility model discloses a kind of circuits of detection power supply unit output electric energy, it is used to detect the output electric energy of the power supply unit of output alternating current comprising current detection circuit, controller for detecting the voltage detecting circuit of power supply unit output voltage and for detecting power supply unit output electric current；For connecting with power supply unit, voltage detecting circuit and current detection circuit are connect with controller voltage detecting electricity；Current detection circuit includes the current measuring element for being set on the firewire outlet line of power supply unit and exporting for detecting power supply unit electric current, and current measuring element is connect with controller.The circuit of the detection power supply unit output electric energy of the utility model, has the advantages that testing result is accurate, circuit structure is simple, production cost is low, easy to detect quick.

Description

Detect the circuit of power supply unit output electric energy

Technical field

The utility model relates to detection circuit technical field, particularly, is related to a kind of detection power supply unit output electric energy Circuit.

Background technique

Currently, the mode detected to the output electric energy of power supply unit is all by the transmission line of power supply unit Voltage check device and current detection means are set to detect the output voltage of power supply unit and output electric current respectively.But due to The loss of transmission line will lead to testing result inaccuracy, and transmission line is longer, be lost also bigger.In addition, voltage detecting The circuit of device and current detection means is all complex, and production cost is higher.Also, voltage check device and current detecting dress The installation process set is also relatively complicated, is not easy to be used for quickly detecting.

Utility model content

The utility model provides a kind of circuit of detection power supply unit output electric energy, existing to power supply unit to solve The mode that is detected of output electric energy existing for testing result inaccuracy, circuit complexity, high production cost, inconvenient quickly inspection The technical issues of survey.

One aspect according to the present utility model provides a kind of circuit of detection power supply unit output electric energy, is used for pair The output voltage and output electric current for exporting the power supply unit of alternating current are detected comprising for detecting power supply unit output electricity The voltage detecting circuit of pressure and current detection circuit, the controller that electric current is exported for detecting power supply unit；Voltage detecting electricity is used It is connect in power supply unit, voltage detecting circuit and current detection circuit are connect with controller；Current detection circuit includes set It is located at the current measuring element on the firewire outlet line of power supply unit and for detecting power supply unit output electric current, current detecting Element is connect with controller.

Further, current detection circuit further includes interface, third rectification module, zener diode Z5 and resistance R3；The Three rectification modules are connect by interface with current measuring element, the negative pole end of zener diode Z5 and the first end of resistance R3 and the The cathode output end of three rectification modules connects, the positive terminal of zener diode Z5, the second end of resistance R3 and third rectification module Cathode output end ground connection, the cathode output end of third rectification module also connect with controller.

Further, third rectification module includes third rectifier, polar capacitor E4 and capacitor C5；Third rectifier passes through Interface is connect with current measuring element, the positive terminal of polar capacitor E4, capacitor C5 first end and third rectifier anode it is defeated Outlet connection, the cathode output end ground connection of the negative pole end of polar capacitor E4, the second end of capacitor C5 and third rectifier；Pressure stabilizing two The negative pole end of pole pipe Z5 and the first end of resistance R3 are connect with the cathode output end of third rectifier, and the anode of third rectifier is defeated Outlet is also connect with controller.

Further, third rectifier is bridge rectifier or half bridge rectifier.

Further, third rectifier is full-wave rectification bridge.

Further, voltage detecting circuit includes the first rectification for the alternating current of power supply unit to be converted to direct current Module, resistance R1, zener diode Z4, capacitor C4 and resistance R2；First rectification module with power supply unit for connecting, resistance R1 First end connect with the first rectification module, the first of the negative pole end of zener diode Z4, the first end of capacitor C4 and resistance R2 End is connect with the second end of resistance R1, the second termination of the positive terminal of zener diode Z4, the second end of capacitor C4 and resistance R2 The second end on ground, resistance R1 is also connect with controller.

Further, the first rectification module includes the first rectifier, polar capacitor E1 and capacitor C1；First rectifier is used for It is connect with power supply unit, the positive terminal of polar capacitor E1 is connect with the cathode output end of the first rectifier, and polar capacitor E1's is negative Extremely connect with the cathode output end of the first rectifier, the both ends of capacitor C1 respectively with the positive and negative electrode output end of the first rectifier Connection, the cathode output end ground connection of the first rectifier.

Further, voltage detecting circuit further include in circuit due to being generated peak current or electricity by external interference Play the role of shunting surge protection module when pressure；Surge protection module is between power supply unit and the first rectification module.

Further, surge protection module is Transient Suppression Diode or Surge Protector.

Further, current measuring element is current transformer.

The utility model has the following beneficial effects:

The circuit of the detection power supply unit output electric energy of the utility model comprising pass through setting voltage detecting circuit and electricity Current detection circuit detects the output voltage and output electric current of power supply unit respectively, and will test result and is transmitted out by controller It goes, testing result is more accurate, and circuit structure is also very simple, reduces production cost.Wherein, current detection circuit is by supplying It is arranged a current measuring element on the firewire outlet line of electric equipment to detect the output electric current of power supply unit, works as power supply unit Firewire outlet line when thering is alternating current to pass through, can accordingly generate induced current, current measuring element in current measuring element It is directly to be set on the firewire outlet line of power supply unit, transmission loss is not present in electric current, and testing result is more accurate, and It is easy to detect, quick.

Other than objects, features and advantages described above, there are also other purposes, feature and excellent for the utility model Point.Below with reference to figure, the utility model is described in further detail.

Detailed description of the invention

The attached drawing constituted part of this application is used to provide a further understanding of the present invention, the utility model Illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.In attached drawing In:

Fig. 1 is the modular structure schematic diagram of the safety utilization of electric power device of the preferred embodiment in the utility model；

Fig. 2 is the structural schematic diagram of the electric energy filter in Fig. 1 of the preferred embodiment in the utility model；

Fig. 3 is the partial cutaway schematic of the coil body in Fig. 2 of the preferred embodiment in the utility model；

Fig. 4 is the modular structure schematic diagram of the circuit board in Fig. 1 of the preferred embodiment in the utility model；

Fig. 5 is the schematic diagram of the power circuit in Fig. 4 of the preferred embodiment in the utility model；

Fig. 6 is the schematic diagram of the voltage detecting circuit in Fig. 4 of the preferred embodiment in the utility model；

Fig. 7 is the schematic diagram of the current detection circuit in Fig. 4 of the preferred embodiment in the utility model.

Fig. 8 is the schematic diagram of the temperature sensing circuit in Fig. 4 of the preferred embodiment in the utility model.

Fig. 9 is the schematic diagram of the display element control circuit in Fig. 4 of the preferred embodiment in the utility model.

Figure 10 is the schematic diagram of the electric-controlled switch element controling circuit in Fig. 4 of the preferred embodiment in the utility model.

Figure 11 is the schematic diagram of the cooling element control circuit in Fig. 4 of the preferred embodiment in the utility model.

Figure 12 is the schematic diagram of the alarm control circuit in Fig. 4 of the preferred embodiment in the utility model.

Figure 13 is the schematic diagram of the earth impedance detection circuit in Fig. 4 of the preferred embodiment in the utility model.

Marginal data:

10, safety utilization of electric power device；11, electric energy filter；12, soft activator；13, input switch；14, change-over switch；15, Current measuring element；16, cooling element；17, display element；18, electric-controlled switch element；19, circuit board；111, input line； 112, output line；1121, the first output line；1122, the second output line；1123, third output line；113, insulation protection part； 115, coil body；1151, annular core；1152, the first mucigel；1153, the first insulating layer；1154, armature winding； 1155, connection protective cap；1156, sheath is padded；1157, second insulating layer；1158, the first secondary windings；1159, the second mucigel； 1160, third insulating layer；1161, insulate inner core；1162, temperature sensor；1163, pilot protection part；191, controlling alarm electricity Road；192, temperature sensing circuit；193, voltage detecting circuit；194, current detection circuit；195, cooling element control circuit； 196, display element control circuit；197, earth impedance detection circuit；198, electric-controlled switch element controling circuit；199, it controls Device；200, power circuit；1941, third rectification module；1942, third rectifier；1971, the second rectification module；1972, first Voltage stabilizing module；1973, the first drive module；1974, division module；1975, normally opened relay module；1976, third rectifies mould Block；1977, the second Voltage stabilizing module；1978, the second drive module；201, surge protection module；202, the first rectification module； 2021, the first rectifier；203, first voltage adjustment module；204, second voltage adjustment module；2031, first voltage is adjusted Device；2041, second voltage adjuster.

Specific embodiment

The embodiments of the present invention are described in detail below in conjunction with attached drawing, but the utility model can be by following The multitude of different ways for limiting and covering is implemented.

As shown in Figure 1, the preferred embodiment of the utility model provides a kind of safety utilization of electric power device 10 comprising electric energy filtering Device 11, soft activator 12, input switch 13, change-over switch 14, current measuring element 15, cooling element 16, display element 17, electricity Switch element 18 and circuit board 19 are controlled, the input switch 13 with the zero curve of alternating current and firewire for connecting, the change-over switch 14 are also used for connecting with the zero curve of alternating current and firewire, and the zero line output end of the input switch 13 is connect with electric energy filter 11, The fire wire output end of the input switch 13 is connect with soft activator 12, and the soft activator 12 is connect with electric energy filter 11. The electric energy filter 11, cooling element 16, current measuring element 15, display element 17 are connect with circuit board 19.The electricity The fire wire output end of energy filter 11 is connect through electric-controlled switch element 18 with change-over switch 14, the zero curve of the electric energy filter 11 Output end is directly connect with change-over switch 14, and the output end of the change-over switch 14 with electrical equipment for connecting.The circuit Plate 19 is also connect with the zero line output end of electric energy filter 11 and fire wire output end, the ground connection of circuit board 19 setting.

Wherein, the input switch 13 for electric current be in circuit more than rated current or circuit occur heavy overload, The effect of disconnecting circuit when the catastrophe failures such as short circuit, to prevent circuit from the major accidents such as on fire, electrical equipment is burned occur.It can To understand, the input switch 13 can be omitted, the zero curve of alternating current is directly connected on electric energy filter 11, firewire is connected to soft On starter 12.It is further appreciated that the input switch 13 is air switch.The soft activator 12 is used to smoothly to On voltage-drop loading to electric energy filter 11, the moment for preventing alternating current to be loaded on electric energy filter 11 influences the stabilization of alternating current.It can To understand, the soft activator 12 also be can be omitted.The electric energy filter 11 is passed through for being filtered to the alternating current of alternating current After crossing the filtration treatment of electric energy filter 11, human or animal individually touches firewire or zero curve in the case where ground connection and will not make At electric shock casualty accident, and firewire occurs that electric spark will not be generated when metallic earthing.The circuit board 19 is used for entire Circuit is detected and plays control action.The electric-controlled switch element 18 is used to control the outlet line of electric energy filter 11 On-off.It is appreciated that the electric-controlled switch element 18 can be relay, contactor, solenoid valve or it is other can be automatically controlled open Element is closed, relay is preferably used in the preferred embodiment of utility model.The current measuring element 15 is for being set in electricity With the output electric current to electric energy filter 11 on the route that the fire wire output end of energy filter 11 is connect with electric-controlled switch element 18 It is detected, when electric energy filter 11 has output exchange to supply electricity to electrical equipment, can produce induction in current measuring element 15 Alternating current, so as to extrapolate the output of electric energy filter 11 by the induction alternating current generated in current measuring element 15 extremely The size of current of electrical equipment, the current measuring element 15 can be current transformer.The cooling element 16 is for carrying out Cooling processing, prevent safety utilization of electric power device 10 from breaking down due to high temperature, the cooling element 16 be fan, heat conductive silica gel, Cooling piece or small-sized air-cooler, it is contemplated that the preferred embodiment of production cost, the utility model preferably uses fan.It can manage Solution, the cooling element 16 can be omitted.For the display element 17 for displaying data, the display element 17 is display Screen, preferably LCD display.It is appreciated that the display element 17 also can be omitted.

The alternating current that the change-over switch 14 is used to export safety utilization of electric power device 10 switches over, and there are three work for tool Mode, one is safe mode, i.e. the output of change-over switch 14 to the alternating current of electrical equipment was carried out through electric energy filter 11 After filter processing；Another is contingency mode, i.e., the alternating current that change-over switch 14 exports directly is exactly the alternating current of alternating current； There are one mode is powered off, i.e. safety utilization of electric power device 10 does not export electric energy.Specifically, the change-over switch 14 includes that emergency is opened It closes and output switchs, when the emergency button of the change-over switch 14 and output switch when all disconnecting, safety utilization of electric power device 10 is not defeated Electric energy out.When the input switch 13 closure, emergency button is closed, change-over switch 14 is in contingency mode at this time, described Change-over switch 14 is directly by the exchange electricity output of alternating current to electrical equipment, at this time if human or animal contacts in the case where ground connection Firewire can get an electric shock.When the input switch 13 closure, output is closed the switch, emergency button is in disconnection shape at this time State, change-over switch 14 is in safe mode at this time, and what the safety utilization of electric power device 10 exported is by 11 mistake of electric energy filter Filter treated alternating current, at this time if human or animal individually contacts firewire or zero curve in the case where ground connection and will not occur Electric shock accidents.It is appreciated that the emergency button and output switch are two interlock type air switches, emergency button and output are opened Closing the two cannot be closed at, and another one has to be off when one of them is closed.It is appreciated that when electric energy filter 11 work it is different It, can be by the way that change-over switch 14 be cut when often or user temporarily uses more than the electrical equipment of 11 rated power of electric energy filter It changes contingency mode into, alternating current is directly supplied electrical equipment to meet the high-power power demand of electrical equipment.Work as electrical equipment Power be lower than electric energy filter 11 rated power when, change-over switch 14 is switched into safe mode, safety utilization of electric power at this time dress It is safe for setting the alternating current of 10 outputs.

As shown in Fig. 2, the electric energy filter 11 includes input line 111, output line 112, insulation protection part 113 and coil Ontology 115, the input line 111 and output line 112 are connect with coil body 115, and the insulation protection part 113 is arranged online It encloses on two opposite end faces of ontology 115 to play the role of insulation, protection to coil body 115.The input line 111 is used for It is connect with the firewire of alternating current and zero curve, the output line 112 includes that the first output line 1121, the second output line 1122 and third are defeated Outlet 1123, first output line 1121 are the electric energy output end of electric energy filter 11 with to power supply for electrical equipment, described the Two output lines 1122 and third output line 1123 are connect with circuit board 19, what the coil body 115 was used to input alternating current Electric energy is filtered processing with the alternating current of output safety.It is appreciated that the insulation protection part 113 can be bakelite One of piece, insulation sheet rubber, insulated plastic tablet are a variety of.It is further appreciated that the insulation protection part 113 can be omitted.

As shown in figure 3, the coil body 115 includes annular core 1151, the first mucigel 1152, the first insulating layer 1153, armature winding 1154, connection protective cap 1155, pad sheath 1156, second insulating layer 1157, the one the first secondary windings 1158, the second mucigel 1159, third insulating layer 1160, insulation inner core 1161, temperature sensor 1162 and pilot protection part 1163.The insulation inner core 1161 is located at the hollow position of annular core 1151 and plays the role of insulation protection, described exhausted Edge inner core 1161 is epoxy resin.First mucigel 1152 is wrapped on annular core 1151 to rise to annular core 1151 To the effect of insulation protection, first mucigel 1152 be also able to achieve it is subsequent be directly wound in it is other on annular core 1151 Layer not fitting closely between annular core 1151.First insulating layer 1153 be wrapped on the first mucigel 1152 with into One step carries out insulation protection to annular core 1151.It is appreciated that first mucigel 1152 can be omitted.It is described it is primary around Group 1154 is wrapped on the first insulating layer 1153, and the armature winding 1154 is connect with input line 111.The connection protective cap 1155 Armature winding 1154 is arranged in protect at the link position of input line 111 with the link position to the two.It is appreciated that The connection protective cap 1155 can be omitted.The pad sheath 1156 is wrapped on armature winding 1154, the second insulating layer 1157 are wrapped on pad sheath 1156, and the pad sheath 1156 plays the role of pad shield, insulation, and the second insulating layer 1157 rises To the effect of insulation.It is appreciated that the pad sheath 1156 can be omitted.First secondary windings 1158 is wrapped in second absolutely In edge layer 1157, second mucigel 1159 is wrapped on the first secondary windings 1158, and the third insulating layer 1160 is wound On the second mucigel 1159, first secondary windings 1158 is connect with the first output line 1121.The temperature sensor 1162 settings in insulation inner core 1161 to be detected to temperature in insulation inner core 1161, the temperature sensor 1162 and the Three output lines 1123 connect and are transferred out temperature detection result by third output line 1123.The pilot protection part 1163 It is protected on being arranged at the position that temperature sensor 1162 is connect with third output line 1123 with the link position to the two, The pilot protection part 1163 is heat-shrinkable T bush.It is appreciated that first grade can also be arranged in the pilot protection part 1163 Winding 1158 and the junction of the first output line 1121 are protected with the junction to the two.It is appreciated that the temperature passes Sensor 1162 can also be arranged at other positions.

It is appreciated that the material of the annular core 1151 is preferably oriented silicon steel band, first mucigel 1152, The material of two mucigels 1159 is preferably that Non-woven tape or wheat draw adhesive tape, first insulating layer 1153, second insulating layer 1157, third insulating layer 1160, pad sheath 1156 material be preferably polyester film, 1154, first grades of the armature winding The material of winding 1158 is preferably enamel insulated round copper wire, and the connection protective cap 1155 and pilot protection part 1163 are preferably fiber sleeve Or heat-shrinkable T bush, the temperature sensor 1162 are preferably thermistor.

It is appreciated that the annular core 1151, the first mucigel 1152,1153 three of the first insulating layer formation magnetic field biography Conducting shell, the armature winding 1154, connection protective cap 1155, pad sheath 1156 and second insulating layer 1157 form electric energy input Layer, first secondary windings 1158, the second mucigel 1159 and third insulating layer 1160 form the first magnetoelectricity conversion layer.Alternating current Alternating current after electric energy input layer input coil ontology 115, due to electromagnetic induction effect can electric energy input layer generate change The magnetic field of change, changing magnetic field can pass through electric energy input layer along magnetic field conducting shell, the first magnetoelectricity conversion layer carries out closed loop transmission, The first magnetoelectricity conversion layer can generate alternating current based on the variation magnetic field on the conducting shell of magnetic field again, and the first magnetoelectricity conversion layer will produce Raw alternating current transmission is to electrical equipment.It is appreciated that can be by adjusting the first secondary windings 1158 and armature winding 1154 Turn ratio change the output voltage of the first magnetoelectricity conversion layer, to meet electricity consumption need different in household electricity and commercial power It asks.It is further appreciated that coil body 115 further includes the second magnetoelectricity conversion layer in the preferred embodiment of the utility model, described the Two magnetoelectricity conversion layers are wrapped on the first magnetoelectricity conversion layer, the structure of the second magnetoelectricity conversion layer and the first magnetoelectricity conversion layer Structure is consistent, i.e. the second magnetoelectricity conversion layer includes the second subprime winding, third mucigel and the 4th insulating layer successively wound, the Secondary stage winding is wrapped on third insulating layer 1160, and the second subprime winding is connect with the second output line 1122.Described The presence of two magnetoelectricity conversion layers can make coil body 115 while export two voltage values, to meet two different use simultaneously Electricity demanding.It is appreciated that the coil body 115 can also more magnetoelectricity conversion layers, the structure of every layer of magnetoelectricity conversion layer be equal It is identical as the structure of the first magnetoelectricity conversion layer, change the defeated of every layer of magnetoelectricity conversion layer by adjusting the number of turns of every hierarchical level winding Voltage out.For example, the alternating current voltage of alternating current input is 220V, 220V friendship can be exported after 115 filtration treatment of coil body Galvanic electricity and 12V alternating current, wherein 220V alternating current is exported through the first output line 1121 to electrical equipment, and 12V alternating current is through second Output line 1122 is exported to circuit board 19.

Alternating current after 115 filtration treatment of coil body is safety electricity, the reason is that the firewire of the first output line 1121 It is larger with the earth impedance of zero curve, for example, at least it is greater than 100K Ω, when human body or animal touch the first output line 1121 It is very small by the electric current of human body when firewire or zero curve, it can substantially be less than 2.2mA, so small electric current will not be to human body It damages, electric shock accidents will not more occur.In addition, the firewire or zero curve of the first output line 1121 touch the gold for connecing the earth When category, arc spark will not be generated and lead to cause the major accidents such as fire, explosion.The firewire or zero curve of first output line 1121 When earth impedance is less than 100K Ω, ammeter will not be made to generate invalid metering, prevent leaky.Therefore, first is defeated When being all larger than 100K Ω, human body will not when touching single firewire or zero curve for the firewire of outlet 1121 and the earth impedance of zero curve It gets an electric shock, to realize the filtration treatment to alternating current, dangerous alternating current is filtered into safe alternating current, but do not change Voltage and frequency, only by below outlet line current reduction to human-body safety current value over the ground to prevent electric shock accidents.It can To understand, the firewire of first output line 1121 and the numerical value of zero curve earth impedance are also possible to 90K Ω or 95K Ω, have Body numerical value is it is not limited here, it is only necessary to ensure the electric current of 115 outlet line of coil body over the ground lower than human-body safety current value ?.

As shown in figure 4, the circuit board 19 includes alarm control circuit 191, temperature sensing circuit 192, voltage detecting electricity Road 193, current detection circuit 194, cooling element control circuit 195, display element control circuit 196, earth impedance detection electricity Road 197, electric-controlled switch element controling circuit 198, controller 199 and power circuit 200, the alarm control circuit 191, temperature Spend detection circuit 192, voltage detecting circuit 193, current detection circuit 194, cooling element control circuit 195, display element control Circuit 196, earth impedance detection circuit 197 and electric-controlled switch element controling circuit 198 processed respectively with controller 199, power supply Circuit 200 connects, and the controller 199 is connect with power circuit 200.The alarm control circuit 191 is mentioned for carrying out alarm It wakes up, the temperature sensing circuit 192 is detected for connecting with temperature sensor 1162 with the temperature to electric energy filter 11, The voltage detecting circuit 193 for detecting to the output voltage of electric energy filter 11, use by the current detection circuit 194 It is detected in being connect with current measuring element 15 with the output electric current to electric energy filter 11, the cooling element control circuit 195 are worked for connecting with cooling element 16 with controlling cooling element 16, and the display element control circuit 196 is used for and display Element 17 is connected to control the display content of display element 17, and the earth impedance detection circuit 197 is used for and electric energy filter 11 output end connection is to detect the firewire of the output of electric energy filter 11 and the earth impedance of zero curve, the electric-controlled switch element control For circuit 198 processed for being connect with electric-controlled switch element 18 to control its work, the controller 199 plays the role of master control, described Power circuit 200 plays power supply function.It is appreciated that the controller 199 is single-chip microcontroller, CPU or MCU, it is contemplated that production Cost, preferably single-chip microcontroller, model are preferably STC15W408ADSOP28.

As shown in figure 5, the power circuit 200 includes interface, surge protection module 201, the first rectification module 202, the One voltage regulator module 203 and second voltage adjustment module 204, the surge protection module 201 are filtered by interface and electric energy Second output line 1122 of device 11 connects, and first rectification module 202 is connect with surge protection module 201, first electricity Pressure adjustment module 203 is connect with the first rectification module 202, the second voltage adjustment module 204 and first voltage adjustment module 203 connections.The surge protection module 201 is used in circuit due to playing when being generated peak current or voltage by external interference The effect of shunting, prevents circuit to be damaged.The surge protection module 201 is a Transient Suppression Diode or surge protection Device, it is contemplated that production cost, it is preferred to use Transient Suppression Diode, model are preferably SMAJ20CA.The first rectification mould Block 202 is used to be converted in the alternating current that electric energy filter 11 exports direct current, and first rectification module 202 includes first whole Flow device 2021, polar capacitor E1 and capacitor C1, the anode output of the positive terminal of the polar capacitor E1 and the first rectifier 2021 End connection, negative pole end are connect with the cathode output end of the first rectifier 2021, and the both ends of the capacitor C1 are whole with first respectively Flow the positive and negative electrode output end connection of device 2021, the cathode output end ground connection of first rectifier 2021.First rectifier 2021 can be bridge rectifier or half bridge rectifier, preferably full-wave rectification bridge, further preferably MB6S type rectifier bridge, The model of the polar capacitor E1 is preferably 470 μ F/50V, and the model of the capacitor C1 is preferably 0.1 μ F/50V.By described First rectification module 202 treated voltage is first voltage.The first voltage adjustment module 203 is used for first voltage tune Section is second voltage, and the first voltage adjustment module 203 includes first voltage adjuster 2031, Schottky diode Z2, electricity Sense L1, polar capacitor E2 and capacitor C2, the first voltage adjuster 2031 are connect with the first rectification module 202, the Xiao Te The plus earth of based diode Z2, cathode are connect with the output end of first voltage adjuster 2031, the first end of inductance L1 and the The output end of one voltage regulator 2031 connects, and the second end of inductance L1 is connect with the positive terminal of polar capacitor E2, the polarity The negative pole end of capacitor E2 is grounded, and the of the first end of the capacitor C2, the feedback end of first voltage adjuster 2031 and inductance L1 The connection of two ends, the second end ground connection of the capacitor C2.The model of the first voltage adjuster 2031 is preferably LM2596-12V, The model of the Schottky diode Z2 is preferably SS34, and the model of the polar capacitor E2 is preferably 330 μ F/35V, the electricity The model for feeling L1 is preferably 47 μ H, and the model of the capacitor C2 is preferably 0.1 μ F/50V.The second voltage adjustment module 204 For second voltage to be adjusted to tertiary voltage, the second voltage adjustment module 204 includes second voltage adjuster 2041, Xiao Special based diode Z3, inductance L2, polar capacitor E3 and capacitor C3, the second voltage adjuster 2041 adjust mould with first voltage Block 203 connects, and the plus earth of the Schottky diode Z3, cathode is connect with the output end of second voltage adjuster 2041, The first end of inductance L2 is connect with the output end of second voltage adjuster 2041, and the second end and polar capacitor E3 of inductance L2 is just Extreme connection, the negative pole end ground connection of the polar capacitor E3, the first end of the capacitor C3, second voltage adjuster 2041 it is anti- Feedback end is connect with the second end of inductance L2, the second end ground connection of the capacitor C3.The model of the second voltage adjuster 2041 The model of preferably LM2596-5V, the Schottky diode Z3 are preferably SS34, and the model of the polar capacitor E3 is preferably 330 μ F/16V, the model of the inductance L2 are preferably 33 μ H, and the model of the capacitor C3 is preferably 0.1 μ F/50V.

The alternating current of the second output line 1122 output of the electric energy filter 11 can be with after handling through power circuit 200 Different supply voltages is exported to power to the electricity consumption device of different voltages demand.For example, electric energy filter 11 is through the second output It is 12VAC that line 1122, which is exported to the voltage of power circuit 200, becomes 17VDC after handling by the first rectification module 202, then Become 12VDC after handling by first voltage adjustment module 203, then becomes after being handled through second voltage adjustment module 204 5VDC.It is appreciated that when the voltage needed for the electricity consumption device in safety utilization of electric power device 10 is the first voltage value, first voltage Adjustment module 203 and second voltage adjustment module 204 can be omitted.

As shown in fig. 6, the voltage detecting circuit 193 includes resistance R1, zener diode Z4, capacitor C4 and resistance R2, The first end of the resistance R1 is connect with the first rectification module 202, the second end of the resistance R1 and bearing for zener diode Z4 Extreme connection, the positive terminal ground connection of the zener diode Z4, the first end of the capacitor C4 are connect with the second end of resistance R1, The second end of capacitor C4 is grounded, and the first end of resistance R2 is connect with the second end of resistance R1, the second end ground connection of resistance R2, described The second end of resistance R1 is also connect with controller 199.The model of the resistance R1 is preferably 20K 1%, the zener diode The model of Z4 is preferably SMAJ5.0A, and the model of the capacitor C4 is preferably 0.1 μ F/50V, and the model of the resistance R2 is preferably 4.7K 1%.The voltage detecting circuit 193 detects the output voltage values of the first rectification module 202 and is transmitted to controller 199, The controller 199 extrapolates electric energy filter 11 through the second output line according to the voltage value that the first rectification module 202 exports 1122 outputs then the turn ratio based on the first secondary windings 1158 and second subprime winding and then are pushed away to the voltage value of circuit board 19 Electric energy filter 11 is calculated to export through the first output line 1121 to the voltage value of electrical equipment.It is prestored in the controller 199 Electric energy filter 11 is exported through the first output line 1121 to the first threshold and second threshold of the voltage of electrical equipment, when the control Device 199 processed extrapolates electric energy filter 11 and is higher than first threshold through the voltage value of the first output line 1121 output to electrical equipment When, the controller 199 controls alarm control circuit 191 and carries out warning reminding, to realize the function of over-voltage alarm, prevents height Electrical equipment is caused to be damaged or even burn on voltage-drop loading to electrical equipment.When the controller 199 extrapolates electric energy mistake When filter 11 is lower than second threshold through the voltage value that the first output line 1121 is exported to electrical equipment, the controller 199 is also controlled Alarm control circuit 191 processed carries out warning reminding, to realize the function of undervoltage alarm.It is appreciated that inputted due to alternating current Voltage is usually 220V, and in the preferred embodiment of the utility model, the first threshold is 264V, second threshold 176V. It is further appreciated that in the other embodiments of the utility model, first threshold is also possible to 250V, 260V or 280V, second Threshold value is also possible to 150V, 160V, 170V, and the specific value of the two is not specifically limited, it is only necessary to ensure the size of first threshold Maximum lower than electrical equipment bears voltage, and the size of second threshold is higher than the starting voltage of electrical equipment.In the utility model Preferred embodiment in, when electric energy filter 11 through the first output line 1121 export to electrical equipment voltage be lower than 176V when then Undervoltage alarm is opened, when electric energy filter 11 is higher than 180V Shi Zeting through the voltage that the first output line 1121 is exported to electrical equipment Only undervoltage alarm is then opened when electric energy filter 11 is higher than 264V through the voltage that the first output line 1121 is exported to electrical equipment Over-voltage alarm then stopped when electric energy filter 11 is lower than 260V through the voltage that the first output line 1121 is exported to electrical equipment Pressure alarm.It is appreciated that being used as a kind of deformation, first rectification module 202 also may belong to voltage detecting circuit 193, from And constraining for power circuit 200 can be detached from and come individually to the output voltage of electric energy filter 11 by realizing voltage detecting circuit 193 It is detected.It is further appreciated that the voltage detecting circuit 193 further includes for sharp due to being generated by external interference in circuit Play the role of shunting surge protection module 201 when peak current or voltage, surge protection module 201 is located at electric energy filter and Between one rectification module 202.The surge protection module 201 is a Transient Suppression Diode or Surge Protector, it is contemplated that Production cost, it is preferred to use Transient Suppression Diode, model are preferably SMAJ20CA.

As shown in fig. 7, the current detection circuit 194 include interface, third rectification module 1941, zener diode Z5 and Resistance R3, the third rectification module 1941 include third rectifier 1942, polar capacitor E4 and capacitor C5, the third rectification Device 1941 is connect by interface with current measuring element 15, the cathode output end ground connection of the third rectifier 1941, the pole Property capacitor E4 positive terminal connect with the cathode output end of third rectifier 1941, negative pole end ground connection, the of the capacitor C5 One end is connect with the cathode output end of third rectifier 1941, second end ground connection, the positive terminal ground connection of zener diode Z5, Negative pole end is connect with the cathode output end of third rectifier 1941, and the first end and third rectifier 1941 of the resistance R3 is just The connection of pole output end, second end ground connection, the cathode output end of the third rectifier 1941 are also connect with controller 199.Institute Third rectifier 1941 is stated for the induction alternating current generated in current measuring element 15 to be converted to direct current, the third is whole Stream device 1941 can be bridge rectifier or half bridge rectifier, preferably full-wave rectification bridge, and further preferably MB6S type is whole Flow bridge.The model of the polar capacitor E4 is preferably 47 μ F/16V, and the model of the capacitor C5 is preferably 0.1 μ F/50V, described The model of zener diode Z5 is preferably SMAJ5.0A, and the model of the resistance R3 is preferably 120 1%.The current detecting electricity Road 194 electric energy filter 11 is extrapolated through first by the size of the induction alternating current generated in detection current measuring element 15 Output line 1121 is exported to the size of current of electrical equipment.It is defeated through first that electric energy filter 11 is prestored in the controller 199 Outlet 1121 is exported to the rated current of electrical equipment, when controller 199 extrapolates electric energy filter 11 through the first output line When the electric current of 1121 outputs to electrical equipment is greater than its output-current rating, controller 199 controls alarm control circuit 191 and carries out Warning reminding, to realize that overcurrent alerts.When electric energy filter 11 is exported through the first output line 1121 to the electric current of electrical equipment When persistently increasing, controller 199 controls electric-controlled switch element 18 by electric-controlled switch element controling circuit 198 and disconnects electric energy filtering The outlet line of device 11 prevents route and electrical equipment from burning.Controller 199 controls electric-controlled switch element 18 and disconnects electric energy filtering It after the outlet line of device 11, for circuit safety consideration, needs to restore electricity manually, operating process is first to disconnect change-over switch 14 output switch, then input switch 13 is disconnected, then close input switch 13, finally close output switch.If in above-mentioned behaviour Make still restore electricity after process, then needs to detect whether route has occurred and that short circuit.In the preferred of the utility model In embodiment, electric energy filter 11 through the first output line 1121 export to electrical equipment rated current be 15A or 30A or 50A was then opened when electric energy filter 11 exceeds rated current through the electric current that the first output line 1121 is exported to electrical equipment Stream alarm, as electric current of the electric energy filter 11 through the first output line 1121 output to electrical equipment 2A or more smaller than rated current Then stop overcurrent alarm, when electric current of the electric energy filter 11 through the first output line 1121 output to electrical equipment is bigger than rated current The outlet line of electric energy filter 11 is then disconnected when 2A or more.It is appreciated that the current measuring element 15 also may belong to electricity In current detection circuit 194.

As shown in figure 8, the temperature sensing circuit 192 includes interface, capacitor C6 and resistance R4, the capacitor C6 and resistance The first end of R4 passes through interface and connect with temperature sensor 1162, and the second end of the two is grounded, and the first end of resistance R4 is also It is connect with controller 199.The temperature for the electric energy filter 11 that the temperature sensor 1162 will test is through temperature sensing circuit 192 real-time Transmissions are to controller 199.The model of the capacitor C6 is preferably 0.1 μ F/50V, and the model of the resistance R4 is preferably 4.7K 1%.The third threshold value, the 4th threshold value and the 5th threshold value of 11 temperature of electric energy filter are prestored in the controller 199, When the temperature that controller 199 compares out electric energy filter 11 is higher than third threshold value, controller 199 passes through control cooling element control Circuit 195 processed opens work to control cooling element 16 to cool down to electric energy filter 11.When controller 199 compares out electricity When the temperature of energy filter 11 is higher than four threshold values, then mean the temperature of electric energy filter 11 also in lasting rising, cooling member The cooling effect of part 16 is not it is obvious that controller 199, which controls alarm control circuit 191, issues warning reminding, in order to user Maintenance in time.When the temperature that controller 199 compares out electric energy filter 11 is higher than five threshold values, controller 199 controls automatically controlled Switch element control circuit 198 controls electric-controlled switch element 18 and disconnects the outlet line of electric energy filter 11 to reduce electric energy filtering The power of device 11 generates heat to reduce.In the preferred embodiment of the utility model, when the temperature for detecting electric energy filter 11 is high Cooling element 16 is then controlled when 70 DEG C and opens cooling work, then when the temperature for detecting electric energy filter 11 is higher than 120 DEG C It controls alarm control circuit 191 and issues warning reminding, then cut off electricity when the temperature for detecting electric energy filter 11 is higher than 130 DEG C Can filter 11 outlet line, alarm is then released when detecting the temperature of electric energy filter 11 lower than 110 DEG C, when detecting The temperature of electric energy filter 11 then controls cooling element 16 and stops cooling work and control electric-controlled switch element 18 when being lower than 60 DEG C Restore the power output of electric energy filter 11.The utility model is by setting temperature sensor 1162 come the filtering of real-time detection electric energy The temperature of device 11 during the work time, and different counter-measures is executed based on different temperature values, electricity consumption to ensure safety Device 10 can also work with security and stability under the higher environment of temperature.

As shown in figure 9, the display element control circuit 197 includes interface, resistance R5, resistance R6, resistance R7, resistance The first end of R8, the resistance R5 are connect with second voltage adjustment module 204, and the of the second end of the resistance R5 and resistance R7 One end connection, the second end ground connection of resistance R7, the first end of resistance R6 are connect with the second end of resistance R5, the second end of resistance R6 It being connect with interface, the first end of resistance R8 is connect with second voltage adjustment module 204, and the second end of resistance R8 is connect with interface, The interface is connect with display element 17, controller 199.The resistance value of the resistance R5 is 10K Ω, and the resistance value of the resistance R6 is The resistance value of 1.2K Ω, resistance R7 are 1.2K Ω, and the resistance value of resistance R8 is 3K Ω.Controller 199 can control display element 17 It shows content, such as can control display element 17 and show electric energy filter 11 through the first output line 1121 output to electrical equipment Output voltage and output electric current size, can also show warning reason, such as: overcurrent, excess temperature, over-voltage, under-voltage, outlet line Earth impedance is abnormal.

As shown in Figure 10, the electric-controlled switch element controling circuit 198 includes resistance R9, resistance R10, resistance R11, three poles The first end of pipe Q1, triode Q2, diode D1 and interface, the resistance R9 is connect with first voltage adjustment module 203, resistance The second end of R9 is connect with the collector of the first end of resistance R11, triode Q1, the first end and controller of the resistance R10 199 connections, the second end of resistance R10 connect with the base stage of triode Q1, and the emitter of triode Q1 is grounded, and the of resistance R11 Two ends are connect with the base stage of triode Q2, and the emitter ground connection of triode Q2, the collector of triode Q2 is connect with interface, two poles The positive terminal of pipe D1 is connect with the collector of triode Q2, and the negative pole end of diode D1 is connect with interface, interface and electric-controlled switch Element 18 connects.The resistance value of the resistance R9 is 1K Ω, and the resistance value of resistance R10, R11 are 100 Ω, triode Q1 and triode Q2 Model be preferably SS8050, the model of diode D1 is preferably IN4007.The controller 199 passes through the control of electric-controlled switch element Circuit 198 processed controls the working condition of electric-controlled switch element 18 to control the on-off of 11 outlet line of electric energy filter.

As shown in figure 11, the cooling element control circuit 195 includes interface, resistance R12, resistance R13, resistance R14, three The first end of pole pipe Q3, triode Q4, diode D2 and interface, the resistance R13 is connect with first voltage adjustment module 203, The second end of resistance R13 is connect with the collector of the first end of resistance R14, triode Q3, the first end and control of the resistance R12 Device 199 processed connects, and the second end of resistance R12 is connect with the base stage of triode Q3, the emitter ground connection of triode Q3, resistance R14 Second end connect with the base stage of triode Q4, the emitter of triode Q4 ground connection, the collector of triode Q4 is connect with interface, The positive terminal of diode D2 is connect with the collector of triode Q4, and the negative pole end of diode D2 is connect with interface, interface and cooling Element 16 connects.The resistance value of the resistance R13 is 1K Ω, and the resistance value of resistance R12, R14 are 100 Ω, triode Q3 and triode The model of Q4 is preferably SS8050, and the model of diode D2 is preferably IN4007.When controller 199 compares out electric energy filter 11 Temperature be higher than third threshold value when, controller 199 by control cooling element control circuit 195 come control cooling element 16 open Work is to cool down to electric energy filter 11.It is appreciated that when the cooling element control circuit 195 is used alone, institute The first end of resistance R13 is stated for being connect with external power supply to power by external power supply.

As shown in figure 12, the alarm control circuit 191 include toggle switch SW, resistance R15, resistance R16, resistance R17, Resistance R18, triode Q5, triode Q6, diode D3, buzzer S1 and light emitting diode D4, the public affairs of the toggle switch SW End and its first gear are connect with second voltage adjustment module 204 altogether, and the second gear of toggle switch SW is connect with buzzer S1, The first end of the resistance R16 is connect with the common end of toggle switch SW, the second end of resistance R16 and the collector of triode Q5 Connection, the first end of resistance R15 are connect with controller 199, and the second end of resistance R15 is connect with the base stage of triode Q5, three poles The emitter of pipe Q5 is grounded, and the first end of resistance R17 is connect with the second end of resistance R16, the second end and triode of resistance R17 The base stage of Q6 connects, and the emitter ground connection of triode Q6, the collector of triode Q6 is connect with buzzer S1, and diode D3's is negative It is extremely connect with the second gear of toggle switch SW, the positive terminal of diode D3 is connect with the collector of triode Q6, resistance R18 First end connect with the collector of triode Q6, the second end of resistance R18 is connect with the negative pole end of light emitting diode D4, shine The positive terminal of diode D4 is connect with second voltage adjustment module 204.The resistance R15, resistance R17 resistance value be 100 Ω, electricity The resistance value for hindering R18 is 1.2K Ω, and the resistance value of resistance R16 is 3K Ω, triode Q6, triode Q5 model be preferably S8050, institute The model for stating diode D3 is preferably IN4007, and light emitting diode D4 is preferably 5 straight cutting red-light LED of φ, the toggle switch SW For one two grades three foot toggle switches, model is preferably SK-12F14 (1P2T).When toggle switch SW switches to the first gear, Buzzer S1 does not work, and alarm sound is closed, and alarm control circuit 191 only issues light warning.When toggle switch SW is switched to When the second gear, buzzer S1 opens work, and alarm control circuit 191 is simultaneously emitted by light and audible alarm.Work as controlling alarm When circuit 191 issues warning reminding, user can close audible alarm by the way that toggle switch SW is pushed the first gear, to keep away Exempt to cause noise pollution.It is appreciated that the resistance R18 and light emitting diode D4 can be omitted, the alarm control circuit 191 Only make a sound alarm.It is appreciated that the toggle switch SW and resistance R16 can be omitted, the negative pole end of the diode D3 Directly it is connect with second voltage adjustment module 204.It is further appreciated that when the alarm control circuit 191 is detached from power circuit 200 Come in use, the component connecting with second voltage adjustment module 204 becomes directly to connect with external power supply, such as stirs out The common end for closing SW and its first gear with external power supply for connecting, for closing alarm sound, the second of toggle switch SW Gear is connect with buzzer S1.

As shown in figure 13, the earth impedance detection circuit 197 includes the second rectification module 1971, the first Voltage stabilizing module 1972, the first drive module 1973, division module 1974, normally opened relay module 1975, third rectification module 1976, second are steady The output line of fire of die block 1977 and the second drive module 1978, second rectification module 1971 and electric energy filter 11 connects It connects, the first Voltage stabilizing module 1972 and the first drive module 1973 are connect with the second rectification module 1971, first Voltage stabilizing module 1972 and first drive module 1973 connect with division module 1974, the division module 1974 and normally opened relay module 1975 connections, first drive module 1973, normally opened relay module 1975 are also connect with controller 199.The third is whole Flow module 1976 is connect with the output zero curve of electric energy filter 11, the second Voltage stabilizing module 1977 and the second drive module 1978 and The connection of three rectification modules 1976, second drive module 1978 are also connect with controller 199, second Voltage stabilizing module 1977 Also it is connect with division module 1974.The earth impedance detection circuit 197 is arranged two detection routes and comes to electric energy filter 11 Output line of fire and the earth impedance of zero curve detected, wherein normally opened relay module 1975, division module 1974, first are driven Dynamic model block 1973, electric energy filter 11 output line of fire form first detection route carry out the output line of fire to electric energy filter 11 Earth impedance detected, normally opened relay module 1975, division module 1974, the second drive module 1973, electric energy filtering The output zero curve composition Article 2 detection route of device 11 detects come the earth impedance of the output zero curve to electric energy filter 11, Circuit structure very simple controls also very convenient.

Wherein, second rectification module 1971 is diode D5, and the first Voltage stabilizing module 1972 is zener diode Z6, the One drive module 1973 includes that polar capacitor E5, capacitor C7, resistance R19 and photoelectrical coupler U1, the division module 1974 are wrapped Include the resistance R23 being sequentially connected in series, resistance R24, resistance R25, resistance R26, resistance R27, resistance R28, second Voltage stabilizing module 1977 be zener diode Z7, third rectification module 1976 be diode D6, the second drive module 1978 include polar capacitor E6, Capacitor C8, resistance R20 and photoelectrical coupler U2, normally opened relay module 1975 include normally opened relay K1, diode D7, three poles Pipe Q7, resistance R21 and resistance R22.The photoelectrical coupler U1 and U2 includes a light emitting diode and a triode, and three The emitter of pole pipe is connect with controller 199, the grounded collector of triode.The negative pole end and electric energy of the diode D5 filters The output line of fire of device 11 connects, and the negative pole end of polar capacitor E5 is connect with the positive terminal of diode D5, the anode of polar capacitor E5 End is connect with the positive terminal of the light emitting diode of photoelectrical coupler U1, and the first end of capacitor C7 and the positive terminal of diode D5 connect It connects, the second end of capacitor C7 is connect with the positive terminal of the light emitting diode of photoelectrical coupler U1, the first end of resistance R19 and two poles The positive terminal of pipe D5 connects, and the second end of resistance R19 is connect with the cathode of the light emitting diode of photoelectrical coupler U1.Two pole of pressure stabilizing The positive terminal of pipe Z6 is connect with the positive terminal of diode D5, the negative pole end of zener diode Z6 and luminous the two of photoelectrical coupler U1 The positive terminal of pole pipe, resistance R23 connection.The negative pole end of diode D6 is connect with the output zero curve of electric energy filter 11, diode The positive terminal of D6 and the positive terminal of zener diode Z7, the negative pole end of polar capacitor E6, the second end of capacitor C8, resistance R20 First end connection, the second end of resistance R20 are connect with the negative pole end of the light emitting diode of photoelectrical coupler U2, polar capacitor E6's Positive terminal, the first end of capacitor C8, photoelectrical coupler U2 light emitting diode cathode of the positive terminal with zener diode Z7 End connection, the negative pole end of zener diode Z7 are also connect with resistance R23.The closure foot position of resistance R28 and normally opened relay K1 connects Connect, the common end grounding of normally opened relay K1, the coil foot position of normally opened relay K1 respectively with the positive terminal of diode D7 and negative Extreme connection.The negative pole end of diode D7 is also connect with second voltage adjustment module 204, the positive terminal of diode D7 also with three poles The collector of pipe Q7 connects, and the emitter ground connection of triode Q7, the base stage of triode Q7 is connect with the first end of resistance R21, electricity The second end of resistance R21 is connect with controller 199, and the first end of resistance R22 is connect with second voltage adjustment module 204, resistance R22 Second end connect with the second end of resistance R21.The diode D5, diode D6, diode D7 model be preferably The model of IN4007, zener diode Z6 and zener diode Z7 are preferably SMAJ5.0A, polar capacitor E6 and polar capacitor E5 Model be preferably the model of 47 μ F/16V, capacitor C7 and capacitor C8 be preferably 0.1 μ F/50V, resistance R23, resistance R24, resistance R25, resistance R26, resistance R27, resistance R28, resistance R22 resistance value be 10K Ω, resistance R19, resistance R20 resistance value be The resistance value of 1.2K Ω, resistance R21 are 100 Ω, and the model of triode Q7 is preferably S8050, photoelectrical coupler U1 and photoelectric coupling The model of device U2 is preferably PC817, and the model of normally opened relay K1 is preferably G5LA-14-DC5.

The earth impedance detection circuit 197 respectively the earth impedance of the output line of fire to electric energy filter 11 and zero curve into Row detection, and will test result and be transmitted to controller 199, electric energy mistake is alarmed based on testing result and/or controlled to controller 199 The on-off and/or control display element 17 of the outlet line of filter 11 show testing result.For example, when detecting electric energy When the earth impedance of the output line of fire of filter 11 is less than 100K Ω, if people touches zero curve and has Danger Electric shock risk at this time, control Device 199 controls alarm control circuit 191 and carries out warning reminding and/or the control display firewire earth impedance exception of display element 17. When detecting that the earth impedance of output zero curve of electric energy filter 11 is less than 100K Ω, if people touches firewire and has touching at this time Electric dangerous, controller 199 controls the progress warning reminding of alarm control circuit 191 and/or control display element 17 shows zero curve pair Ground impedance is abnormal.When the earth impedance of the output zero curve and output line of fire that detect electric energy filter 11 is respectively less than 100K Ω, Controller 199 controls electric-controlled switch element 18 and disconnects the outlet line of electric energy filter 11, while controlling the display of display element 17 Firewire and zero curve earth impedance are abnormal.It is appreciated that the setting value of the earth impedance of firewire and zero curve is also possible to 95K Ω, 90K The setting value of Ω 98K Ω, earth impedance are not specifically limited herein, it is only necessary to meet 11 outlet line pair of electric energy filter The electric current on ground is less than human-body safety electric current.

The utility model also provides a kind of circuit of the output electric energy of detection power supply unit, particularly for output alternating current The output electric energy of power supply unit detected comprising voltage detecting circuit 193, current detection circuit 194 as described above With controller 199, voltage detecting circuit 193 with power supply unit for connecting, voltage detecting circuit 193 and current detection circuit 194 connect with controller 199.It, can also be with it is appreciated that the power supply unit can be electric energy filter 11 as described above It is other AC power supply devices, such as alternating current generator etc..

The utility model also provides a kind of circuit for detecting power supply unit temperature comprising temperature detection electricity as described above Road 192, controller 199 and temperature sensor 1162, the temperature sensor 1162 are used to detect the temperature of power supply unit, temperature Detection circuit 192 is connect with temperature sensor 1162, controller 199.The physical circuit of temperature sensing circuit 192 is in front It is specifically described, therefore details are not described herein.It is appreciated that the circuit of the detection power supply unit temperature further includes reporting as described above Alert control circuit 191, cooling element 16, cooling element control circuit 195, electric-controlled switch element 18 and electric-controlled switch element control Circuit 198 processed, specific connection relationship and control principle have been described in the preceding, therefore details are not described herein.The control Third threshold value, the 4th threshold value and the 5th threshold value are prestored in device 199, when the temperature that controller 199 compares power supply unit is higher than the When three threshold values, controller 199 is controlled cooling element 16 by control cooling element control circuit 195 and opens work to electric energy Filter 11 cools down.When the temperature that controller 199 compares out power supply unit is higher than four threshold values, then mean that power supply is set For standby temperature also in lasting rising, the cooling effect of cooling element 16 is not it is obvious that controller 199 controls alarm control circuit 191 issue warning reminding, in order to which user overhauls in time.When the temperature that controller 199 compares out power supply unit is higher than the 5th threshold When value, controller 199 controls electric-controlled switch element controling circuit 198 and disconnects the defeated of power supply unit to control electric-controlled switch element 18 Route reduces fever to reduce the power of power supply unit out.It is appreciated that the power supply unit can be electricity as described above Energy filter, is also possible to generator, battery, mobile power source or other power supply units.

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (10)

1. it is a kind of detection power supply unit output electric energy circuit, be used for output alternating current power supply unit output voltage and Output electric current is detected, it is characterised in that:

It includes for detecting the voltage detecting circuit of power supply unit output voltage (193) and for detecting power supply unit output electricity Current detection circuit (194), the controller (199) of stream；

Voltage detecting circuit (193) with power supply unit for connecting, voltage detecting circuit (193) and current detection circuit (194) It is connect with controller (199)；

Current detection circuit (194) includes being set on the firewire outlet line of power supply unit and for detecting power supply unit output The current measuring element (15) of electric current, current measuring element (15) are connect with controller (199).

2. the circuit of detection power supply unit output electric energy as described in claim 1, it is characterised in that:

Current detection circuit (194) further includes interface, third rectification module (1941), zener diode Z5 and resistance R3；

Third rectification module (1941) is connect by interface with current measuring element (15), the negative pole end and electricity of zener diode Z5 The first end of resistance R3 is connect with the cathode output end of third rectification module (1941), positive terminal, the resistance R3 of zener diode Z5 Second end and third rectification module (1941) cathode output end ground connection, the cathode output end of third rectification module (1941) is also It is connect with controller (199).

3. the circuit of detection power supply unit output electric energy as claimed in claim 2, it is characterised in that:

Third rectification module (1941) includes third rectifier (1942), polar capacitor E4 and capacitor C5；

Third rectifier (1942) is connect by interface with current measuring element (15), positive terminal, the capacitor C5 of polar capacitor E4 First end connect with the cathode output end of third rectifier (1942), the second end of the negative pole end of polar capacitor E4, capacitor C5 It is grounded with the cathode output end of third rectifier (1942)；

The negative pole end of zener diode Z5 and the first end of resistance R3 are connect with the cathode output end of third rectifier (1942), the The cathode output end of three rectifiers (1942) is also connect with controller (199).

4. the circuit of detection power supply unit output electric energy as claimed in claim 3, it is characterised in that:

Third rectifier (1942) is bridge rectifier or half bridge rectifier.

5. the circuit of detection power supply unit output electric energy as claimed in claim 4, it is characterised in that:

Third rectifier (1942) is full-wave rectification bridge.

6. the circuit of detection power supply unit output electric energy as described in claim 1, it is characterised in that:

Voltage detecting circuit (193) includes the first rectification module for the alternating current of power supply unit to be converted to direct current (202), resistance R1, zener diode Z4, capacitor C4 and resistance R2；

First rectification module (202) with power supply unit for connecting, and the first end of resistance R1 and the first rectification module (202) are even It connects, the first end of the negative pole end of zener diode Z4, the first end of capacitor C4 and resistance R2 is connect with the second end of resistance R1, surely Press the second end ground connection of the positive terminal of diode Z4, the second end of capacitor C4 and resistance R2, the second end of resistance R1 also with control Device (199) connection.

7. the circuit of detection power supply unit output electric energy as claimed in claim 6, it is characterised in that:

First rectification module (202) includes the first rectifier (2021), polar capacitor E1 and capacitor C1；

First rectifier (2021) for being connect with power supply unit, the positive terminal of polar capacitor E1 and the first rectifier (2021) Cathode output end connection, the negative pole end of polar capacitor E1 are connect with the cathode output end of the first rectifier (2021), capacitor C1's Both ends are connect with the positive and negative electrode output end of the first rectifier (2021) respectively, and the cathode output end of the first rectifier (2021) connects Ground.

8. the circuit of detection power supply unit output electric energy as claimed in claim 6, it is characterised in that:

Voltage detecting circuit further includes for playing shunting when circuit is due to by external interference generation peak current or voltage Effect surge protection module (201)；

Surge protection module (201) is located between power supply unit and the first rectification module (202).

9. the circuit of detection power supply unit output electric energy as claimed in claim 8, it is characterised in that:

Surge protection module (201) is Transient Suppression Diode or Surge Protector.

10. the circuit of detection power supply unit output electric energy as described in claim 1, it is characterised in that:

Current measuring element (15) is current transformer.