CN210092966U - Circuit for obtaining electric energy - Google Patents
Circuit for obtaining electric energy Download PDFInfo
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- CN210092966U CN210092966U CN201920861306.4U CN201920861306U CN210092966U CN 210092966 U CN210092966 U CN 210092966U CN 201920861306 U CN201920861306 U CN 201920861306U CN 210092966 U CN210092966 U CN 210092966U
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Abstract
The utility model provides a circuit of acquireing electric energy belongs to electric power technical field, especially relates to a circuit of acquireing electric energy. The utility model provides an acquire circuit of electric energy. The utility model discloses a accuse is pressed module 16, vary voltage module 17, rectifier module 18, filter module 19, voltage stabilizing module 20, partial pressure module 21 and protection module 22, and its structural feature mutual-inductor 1, accuse are pressed module 16, vary voltage module 17, rectifier module 18, filter module 19, voltage stabilizing module 20, partial pressure module 21, protection module 22, battery 9 link to each other in proper order.
Description
Technical Field
The utility model belongs to the technical field of electric power, especially, relate to a circuit of acquireing electric energy.
Background
In railway engineering construction, in order to ensure the normal operation of an electric locomotive, installation of some interval equipment is often involved to ensure driving safety, but a power supply needs to be laid with a power cable of several kilometers or even dozens of kilometers to supply power for the electric locomotive. With the rapid development of power electronic technology, the high-power section equipment in the railway part can be changed into low-power equipment, such as: the interval track signal indicator lamp, the 220V voltage halogen lamp that is adopted at present, can utilize direct current 12V or 24V's LED pilot lamp instead, not only can reduce power, can also guarantee luminous intensity. In practical situations, there are many fixed-position individual devices in an interval, and its low-voltage power supply can not be directly obtained from an adjacent power line, needs to be transmitted through a 220V or 380V power cable, and obtained after voltage transformation and rectification, not only causes waste of materials, but also is affected by the problem of voltage drop, the transmission distance is limited, and to prolong the power supply distance, only the wire section can be increased or the head end voltage can be increased, thereby increasing the economic investment.
Disclosure of Invention
The utility model discloses to above-mentioned problem, provide a circuit of acquireing the electric energy.
In order to achieve the above object, the utility model discloses a following technical scheme, the utility model discloses a accuse is pressed module 16, vary voltage module 17, rectifier module 18, filter module 19, voltage stabilizing module 20, partial pressure module 21 and protection module 22, and its structural feature mutual-inductor 1, accuse are pressed module 16, vary voltage module 17, rectifier module 18, filter module 19, voltage stabilizing module 20, partial pressure module 21, protection module 22, battery 9 and are linked to each other in proper order.
As another preferred scheme, the storage battery 9 of the present invention is connected with the terminal block 10.
As another preferred scheme, the voltage control module 16 of the present invention includes a fuse F, an adjustable resistor R1, a resistor R2, and an electromagnetic rheostat 23, the electromagnetic rheostat includes an excitation coil 23-1, an armature 23-2, a spring 23-3, and a slide rheostat 23-7, the armature 23-2 is disposed on one side of the excitation coil 23-1, an end of the armature 23-2 away from the excitation coil 23-1 is connected to one end of the spring 23-3, the other end of the spring 23-3 is connected to a support body, and the excitation coil 23-1 is fixed on the support structure to maintain a fixed position;
the lower end of the magnet exciting coil 23-1 is provided with a front excitation scribing sheet and a rear excitation scribing sheet along the length direction of the magnet exciting coil 23-1, the upper end of the excitation scribing sheet is electrically connected with the lower end of the magnet exciting coil 23-1, the excitation scribing sheet is connected and linked with the armature 23-2 through an insulating connecting piece 23-5, and the insulating connecting piece is connected with a slide sheet seat of the slide rheostat 23-7;
one end of the output end of the mutual inductor 1 is connected with the front excitation scribing sheet, the rear excitation scribing sheet is respectively connected with one end of the adjustable resistor R1 and the sliding sheet of the slide rheostat, the coil end of the slide rheostat is respectively connected with one end of the resistor R2 and one end of the input end of the transformation module 17, the other end of the input end of the transformation module 17 is respectively connected with the other end of the resistor R2, the other end of the adjustable resistor R1 and one end of the fuse F, and the other end of the fuse F is connected with the other.
In another preferred embodiment, R2 ═ 20 Ω and R1 ═ 20 Ω in the present invention.
As another preferred scheme, the utility model discloses insulating connecting piece is horizontal L shape connecting piece, and the long limit of L shape connecting piece is the base, and the base rear end is upwards buckled, and the excitation scribing is set up upper end before the base, and the upper end of slide sheet seat of slide rheostat 23-7 links to each other with base rear end lower extreme, and the upper end of buckling links to each other with armature 23-2 lower extreme middle part on going up.
As another preferable scheme, the armature 23-2 of the present invention is disposed in the lateral guide groove.
As another preferred scheme, the transformation module 17 of the present invention adopts a transformer T.
As another preferred scheme, the transformer T of the utility model ratio adopts 1: 1.
As another preferred scheme, the rectifier module 18 of the present invention employs a rectifier bridge.
As another preferred scheme, the rectifier diode VT1-4 of the rectifier bridge of the present invention adopts: 10A1010A/1000V type.
As another preferred scheme, filtering module 19 includes inductance L, electric capacity C1 and electric capacity C2, and electric capacity C1 one end links to each other with rectifier module 18's output positive pole, inductance L one end respectively, and electric capacity C1 one end links to each other with rectifier module 18's output negative pole, electric capacity C2 one end, voltage stabilizing module input negative pole respectively, and the electric capacity C2 other end links to each other with the inductance L other end, voltage stabilizing module input positive pole respectively.
As another preferred scheme, the capacitors C1 and C2 of the present invention adopt: 16V 100uF volume 5 × 11mm, the inductance L adopts 1.0 line 33uH 10A.
As another preferred scheme, voltage regulation module 20 includes resistance R3 and zener diode Dw, and a termination filtering module 19's of resistance R3 output is anodal, and the resistance R3 other end links to each other with zener diode Dw negative pole, voltage divider module input positive pole respectively, and zener diode Dw positive pole links to each other with filtering module 19's output negative pole, voltage divider module input negative pole respectively.
As another preferred scheme, the zener diode Dw of the present invention adopts IN4744N 15V.
As another preferred scheme, voltage division module 21 includes resistance R5 and resistance R6, and resistance R5 one end links to each other with resistance R4 one end, protection module 22's power end respectively, and resistance R4 links to each other with one end voltage stabilization module 20's output positive pole in addition, and the resistance R5 other end links to each other with protection module 22's input, resistance R6 one end respectively, and the other termination of resistance R6 voltage stabilization module 20's output negative pole.
As another preferred scheme, the protection module 22 of the present invention includes a comparator K, a positive input terminal of the comparator K is connected to an output terminal of the voltage dividing module 21, a negative input terminal of the comparator K is respectively connected to a positive terminal of the battery 9 through a resistor R7, one end of a resistor R8, another terminal of the resistor R8 is connected to a collector of a PNP triode Q1, an emitter of the PNP triode Q1 is respectively connected to a positive terminal of a diode D1, a positive terminal of a power supply terminal of the protection module 22, a negative terminal of the diode D1 is respectively connected to a base of the PNP triode Q1, an emitter of the PNP triode Q2, a base of the PNP triode Q2 is respectively connected to one end of the resistor R829, one end of the resistor R12 is connected, the other end of the resistor R11 is connected with the output end of the comparator K, the other end of the resistor R12 is connected with the negative electrode of the output end of the voltage stabilizing module 20, one end of the resistor R10 and the negative electrode of the storage battery respectively, and the other end of the resistor R10 is connected with the collector of the PNP triode Q2.
As another preferred scheme, be provided with relay coil KM between resistance R12 and the resistance R11 link, the controlled switch QF of relay is connected between diode D1 anodal and the power end positive pole of protection module 22.
As another preferred scheme, the utility model discloses comparator K adopts the LM393 chip, and triode Q1, Q2 adopt 9012 type triode.
Next, in the present invention, R7 ═ R6 ═ 100K Ω, R5 ═ 20K Ω, R4 ═ 5K Ω, R3 ═ 8K Ω, R8 ═ 3 Ω, R9 ═ R10 ═ 1K Ω, and R11 ═ R12 ═ 100K Ω.
Additionally, the primary side voltage U1 of the transformation module 17 and the output current I of the transformer 1 are related as follows:
wherein R1-adjustable resistance (omega); r2-boost resistance (Ω); r-total resistance of sliding rheostat (omega); i-input current (A); s-solenoid coil cross sectional area (cm)2) (ii) a W-number of field coil turns (n); l-slide rheostat total length (cm); k-spring elastic coefficient; delta-field coil to armature distance (cm).
The utility model has the advantages of.
The utility model discloses during the use, the input of accuse pressure module 16 can link to each other with open-close type mutual-inductor 1's output, utilizes the alternating magnetic field that alternating current produced in closing on contact net or power line, produces secondary current through mutual inductance coil, obtains alternating voltage after accuse pressure module 16, obtains the stable alternating voltage of certain limit through the vary voltage module again, passes through rectifier module again, obtains stable DC power supply, passes through filter module again, obtains the DC voltage of needs.
Drawings
The present invention will be further described with reference to the accompanying drawings and the following detailed description. The scope of protection of the present invention is not limited to the following description.
Fig. 1 is a schematic structural diagram of the device for obtaining electric energy by using an alternating magnetic field.
Fig. 2 is a schematic diagram of the overall structure of the device for obtaining electric energy by using the alternating magnetic field.
Fig. 3 is a schematic diagram of the induction coil of the present invention.
Fig. 4 is a schematic diagram of the induction coil structure of the present invention.
Fig. 5 is a schematic diagram of the circuit module of the present invention.
Fig. 6 is a schematic diagram of the electromagnetic rheostat of the present invention.
Figure 7 is a schematic view of the locking adapter of the present invention.
Fig. 8 is a side view of the open-close type mutual inductor 1 of the present invention.
Fig. 9 is a schematic diagram of the pressure control module 16 according to the present invention.
Fig. 10 is a simulation result diagram of the present invention.
In the figure, 1 is an open-close type mutual inductor, 2 is a folding buckle, 3 is a wiring terminal, 4 is a ferromagnetic interface, 5 is a blocking connector (connecting seat), 6 is an output lead, 7 is a conversion circuit, 8 is an output lead, 9 is a storage battery, 10 is a terminal strip, 11 is a box body, 12 is a high-voltage lead, 13 is a ferromagnetic material, 14 is a magnetic induction line, 15 is an acquisition module (open-close type mutual inductor), 16 is a voltage control module, 17 is a voltage transformation module, 18 is a rectification module, 19 is a filtering module, 20 is a voltage stabilizing module, 21 is a voltage dividing module, 22 is a protection module, and 23 is an electromagnetic rheostat.
Detailed Description
As shown in the figure, the utility model discloses the circuit of obtaining electric energy can be applied to and utilizes alternating magnetic field to obtain the device of electric energy, utilizes alternating magnetic field to obtain the device of electric energy including open-close type mutual-inductor 1, electric energy conversion circuit 7 (promptly the utility model discloses obtain the circuit of electric energy) and battery 9, and the output port of mutual-inductor 1 links to each other with conversion circuit 7's input port, and conversion circuit 7's output port links to each other with battery 9.
The conversion circuit 7 and the battery 9 are enclosed in a case 11. The box body 11 can be arranged according to specific conditions, is connected with the combined transformer 1 through a wire 6, outputs voltage through the terminal strip 10, can be automatically adjusted (see the following description for adjustment of U1) according to needs, outputs voltages of different grades such as 12V, 24V, 36V and the like, and is suitable for equipment with different rated voltages.
According to the utility model discloses conversion circuit 7 and battery 9's design, the utility model discloses less, easily installation, convenient to use can be done to box 11. Can improve interval equipment power installation efficiency, the work of laying of fungible low tension cable greatly practices thrift construction cost.
Box 11 can adopt rain-proof protection box (the box wholly can adopt stainless steel, and joint strip is installed additional to the crack junction, and the wire through wires hole is located the box downside, wholly has the slope top cap), realizes electronic device steady operation under different external environment, increase of service life.
The battery 9 is connected to a terminal block 10.
The conversion circuit 7 comprises a voltage control module 16, a voltage transformation module 17, a rectification module 18, a filtering module 19, a voltage stabilization module 20, a voltage division module 21 and a protection module 22, and the mutual inductor 1, the voltage control module 16, the voltage transformation module 17, the rectification module 18, the filtering module 19, the voltage stabilization module 20, the voltage division module 21, the protection module 22 and the storage battery 9 are sequentially connected.
The utility model discloses utilize alternating magnetic field to acquire alternating magnetic field's device utilization to close on alternating current production in contact net or the power line, produce secondary current through mutual inductor, obtain alternating voltage after accuse pressure module 16, obtain the stable alternating voltage of certain limit through the vary voltage module again, pass through rectifier module again, obtain stable DC power supply, pass through filter module again, obtain the DC voltage of needs.
The utility model discloses utilize alternating magnetic field to acquire device open-close type mutual-inductor 1 of electric energy is used for connecting high tension transmission line.
The utility model discloses utilize alternating magnetic field to obtain the device of electric energy and utilize the electromagnetic induction principle of high-power alternating magnetic field and coil to carry out energy storage and output.
The utility model discloses utilize alternating magnetic field to obtain the device of electric energy can utilize and close on alternating current high voltage circuit and acquire low pressure DC power supply, supply low pressure DC equipment to use through the battery.
The transformer transformation ratio of the transformation module can be designed to obtain an ideal output voltage value.
The filtering module can eliminate harmonic waves and ensure the quality of the output rectified voltage.
The voltage control module 16 comprises a fuse F, an adjustable resistor R1, a resistor R2 and an electromagnetic rheostat 23, wherein the electromagnetic rheostat comprises an excitation coil 23-1, an armature 23-2, a spring 23-3 and a slide rheostat 23-7, the armature 23-2 is arranged on one side of the excitation coil 23-1, the end, far away from the excitation coil 23-1, of the armature 23-2 is connected with one end of the spring 23-3, the other end of the spring 23-3 is connected with a support body, and the excitation coil 23-1 is fixed on the support structure and keeps fixed in position;
the lower end of the excitation coil 23-1 is provided with a front excitation scribing sheet and a rear excitation scribing sheet along the length direction of the excitation coil 23-1, the upper end of the excitation scribing sheet is electrically connected with the lower end of the excitation coil 23-1 (the connection mode of the sliding sheet of the slide rheostat and the resistance coil is the same, current is connected into the excitation coil from the front excitation scribing sheet and flows out through the rear excitation scribing sheet after passing through the winding path of the excitation coil between the front excitation scribing sheet and the rear excitation scribing sheet), the excitation scribing sheet is connected and linked with the armature 23-2 through an insulating connecting piece, and the insulating connecting piece is connected with a;
one end of the output end of the mutual inductor 1 is connected with the front excitation scribing sheet, the rear excitation scribing sheet is respectively connected with one end of the adjustable resistor R1 and the sliding sheet of the slide rheostat, the coil end of the slide rheostat is respectively connected with one end of the resistor R2 and one end of the input end of the transformation module 17, the other end of the input end of the transformation module 17 is respectively connected with the other end of the resistor R2, the other end of the adjustable resistor R1 and one end of the fuse F, and the other end of the fuse F is connected with the other.
The resistance values R1 and R2 in different voltage control modules 16 can be selected according to different high-voltage lines, so as to realize the selection of the required voltage value. The power supply of low-voltage equipment on the pole in a long line interval is connected conveniently, laying of low-voltage cables is avoided, and construction cost is greatly saved.
The front excitation scribing sheet and the rear excitation scribing sheet are linked with the armature 23-2, so that the impact number of the electrified excitation coil is ensured to be constant, the distance between the electrified excitation coil and the armature is ensured to be constant, and the influence of a distance coefficient is eliminated.
When a current signal of the open-close type mutual inductor 1 is input to the voltage control module, the current signal flows through the adjustable resistor R1, the electromagnetic rheostat resistor and the resistor R2, then the alternating current is converted into alternating voltage, and primary energy conversion is performed. And taking the voltage on two sides of the resistor R2 as the primary voltage of the transformer module.
The electromagnetic rheostat has the function of automatically adjusting and controlling overlarge output voltage fluctuation. Because the input current I has no stability and the fluctuation range is large, the voltage of the boost resistor changes along with the input current I. The electromagnetic automatic rheostat utilizes the main circuit current I as the exciting current of the electromagnet, the length of the exciting coil is enough, the distance between the front exciting scribing and the rear exciting scribing is kept to be certain, the armature is integrated with the sliding rheostat scribing and the exciting scribing, the proportional relation between the electromagnetic force and the current borne by the armature is guaranteed, the influence of the air gap length on the electromagnetic force is eliminated, the tail end of the armature is connected with the spring with the elastic coefficient in the corresponding proportion, and the stretching length distance is within the elastic limit. When the induced current is increased, the resistance of the sliding rheostat is correspondingly increased, the current of the branch circuit where the resistance R2 and the sliding rheostat are located is reduced, and therefore the voltage on the two sides of the resistance R2 is reduced, and the situation that the current cannot be influenced due to overlarge primary current is guaranteed.
The corresponding resistance value can be set according to the current value of the line which is stable in the longest time in one day, and the output effective voltage value is guaranteed to be highest in efficiency. If the current of the high-voltage line is small, a plurality of open-close type mutual inductors 1 can be connected in series to increase the output current value.
The R2 is 20 omega, and the R1 is 20 omega.
The insulating connecting piece is a transverse L-shaped connecting piece, the long edge of the L-shaped connecting piece is a bottom edge, the rear end of the bottom edge is bent upwards, the excitation scribing sheet is arranged at the front upper end of the bottom edge, the upper end of the slider seat of the slide rheostat 23-7 is connected with the rear lower end of the bottom edge, and the upper bent upper end is connected with the middle part of the lower end of the armature 23-2.
The armature 23-2 is disposed within a transverse guide slot (providing support and guidance for the armature).
The transformation module 17 adopts a transformer T.
The transformation ratio of the transformer T is 1:1, and U2 is 16V.
The rectifier module 18 adopts a rectifier bridge.
The rectifier diode VT1-4 of the rectifier bridge adopts a 10A1010A/1000V type.
The filter module 19 includes an inductor L, a capacitor C1, and a capacitor C2, one end of the capacitor C1 is connected to the positive electrode of the output end of the rectifier module 18 and one end of the inductor L, one end of the capacitor C1 is connected to the negative electrode of the output end of the rectifier module 18, one end of the capacitor C2, and the negative electrode of the input end of the regulator module, and the other end of the capacitor C2 is connected to the other end of the inductor L and the positive electrode of the input end of the regulator module.
16V 100uF volume 5 x 11mm is adopted for the capacitors C1 and C2, and 1.0 line 33uH10A is adopted for the inductor L.
The voltage stabilizing module 20 comprises a resistor R3 and a voltage stabilizing diode Dw, one end of the resistor R3 is connected with the anode of the output end of the filter module 19, the other end of the resistor R3 is connected with the cathode of the voltage stabilizing diode Dw and the anode of the input end of the voltage dividing module respectively, and the anode of the voltage stabilizing diode Dw is connected with the cathode of the output end of the filter module 19 and the cathode of the input end of the voltage dividing module respectively.
The voltage stabilizing module 20 can ensure the stability of the output voltage. When the rectified voltage fluctuates slightly, the current of the voltage stabilizing diode Dw changes greatly, and the voltage change is not large, so that the output voltage value of the voltage dividing module 21 is kept within a certain range through the voltage dividing function of the voltage dividing resistor R4, and the voltage stabilizing effect is achieved.
The zener diode Dw takes IN4744N 15V.
The voltage dividing module 21 comprises a resistor R5 and a resistor R6, one end of the resistor R5 is connected with one end of the resistor R4 and a power supply end of the protection module 22, the resistor R4 is connected with the anode of the output end of the voltage stabilizing module 20 at one end, the other end of the resistor R5 is connected with the input end of the protection module 22 and one end of the resistor R6, and the other end of the resistor R6 is connected with the cathode of the output end of the voltage stabilizing module 20.
The protection module 22 comprises a comparator K, a positive input end of the comparator K is connected with an output end of the voltage division module 21, a negative input end of the comparator K is connected with a positive electrode of the storage battery 9 and one end of a resistor R8 through a resistor R7, the other end of the resistor R8 is connected with a collector electrode of a PNP triode Q1, an emitter electrode of the PNP triode Q1 is connected with a positive electrode of a diode D1 and a power supply end positive electrode of the protection module 22, a negative electrode of a diode D1 is connected with a base electrode of the PNP triode Q1 and an emitter electrode of the PNP triode Q2, a base electrode of the PNP triode Q2 is connected with one end of a resistor R11 and one end of a resistor R12, the other end of a resistor R11 is connected with an output end of the comparator K, the other end of the resistor R12 is connected with a negative electrode of an output end of the voltage stabilizing module 20, one.
A relay coil KM is arranged between the connecting ends of the resistor R12 and the resistor R11, and a controlled switch QF of the relay is connected between the anode of the diode D1 and the anode of the power supply end of the protection module 22. Preventing the battery from being fully charged and overcharged. When the voltage of the battery is lower than 12V, the coil KM is powered on, the normally open switch QF is closed, and the subsequent charging circuit is powered on. When the voltage of the battery is greater than or equal to 12v, the coil loses power, QF is in an off state, the charging circuit loses power, and the battery is not charged.
The protection module 22 can protect the storage battery, realize the functions of full power cut-off and under-voltage charging, and simultaneously prevent the storage battery from being overcharged or reversely fed.
The comparator K adopts an LM393 chip, and the triodes Q1 and Q2 adopt 9012 type triodes.
R7 ═ R6 ═ 100K Ω, R5 ═ 20K Ω, R4 ═ 5K Ω, R3 ═ 8K Ω, R8 ═ 3 Ω, R9 ═ R10 ═ 1K Ω, and R11 ═ R12 ═ 100K Ω.
The charging current of the storage battery is 0.7-1A, the Q1 trigger current is not lower than 7mA, and the trigger voltage is not lower than 0.7V. Q2 trigger current is not less than 0.07mA, and trigger voltage is not less than 0.7V.
The relationship between the primary side voltage U1 of the transformation module 17 and the output current I of the transformer 1 is as follows:
wherein R1-adjustable resistance (omega); r2-boost resistance (Ω); r-total resistance of sliding rheostat (omega); i-input current (A); s-solenoid coil cross sectional area (cm)2) (ii) a W-number of field coil turns (n); l-slide rheostat total length (cm); k-spring elastic coefficient; delta-field coil to armature distance (cm).
The voltage control module 16 processes input alternating current I, outputs alternating voltage after passing through a boosting resistor R2, obtains alternating voltage needing rectification after passing through a transformer coil T, obtains direct voltage after passing through a rectification module 18, and transmits the direct voltage to a voltage stabilizing module 20 after passing through a filtering module 19, the filtering module 19 can eliminate the alternating voltage existing in a filtered circuit, the voltage stabilizing module 20 can ensure that the total voltage of the voltage dividing module 21 is kept unchanged, the voltage dividing module 21 obtains 12V signal voltage by using a voltage taking resistor R6 to serve as a comparison signal of the protection module 22, the comparison signal is compared with the anode voltage of the storage battery 9 through a voltage comparator K, when the anode voltage of the storage battery 9 is lower than 12V, the circuit is charged, when the voltage reaches 12V, the charging is stopped, and the protection circuit ensures that the storage battery cannot be overcharged and reversely discharged. The protection module 22 is connected with the storage battery 9 through the output lead 8, the storage battery 9 is connected with the terminal strip 10, and the terminal strip 10 can provide voltage values of different grades for electric equipment.
Connecting seats are arranged on two sides of an opening and closing opening of the open-close type mutual inductor 1, wire inlet holes are formed in the connecting seats, crimping lead screws are arranged on the connecting seats corresponding to the wire inlet holes, and the connecting seats on the two sides are connected through fasteners. The excitation wires respectively wound on the two semicircular magnetic cores are connected through the connecting seat.
The connecting seat adopts a metal connecting seat. The metal connecting seat and the excitation iron core are insulated and fixed on the outer side insulating material through bolts. The inside insulating parcel structure that also adopts of connecting outside for switching on of connecting seat. The integral excitation device can be subjected to insulation treatment after installation is completed.
The connecting seats are L-shaped connecting seats, the long edges of the L-shaped connecting seats are bottom edges, the short edges of the L-shaped connecting seats are bent upwards, and the short edges of the L-shaped connecting seats on the two sides are arranged oppositely; the wire inlet hole is formed in the end face of the outer side of the bottom edge, the lower end of the compression joint wire screw is screwed into the threaded hole in the upper end of the bottom edge, and the threaded hole is communicated with the wire inlet hole; the short edges of the L-shaped connecting seats on the two sides are connected through bolts.
The open-close type mutual inductor 1 comprises two arc buckling parts, one ends of the two arc buckling parts are connected through a folding buckle, the other ends of the two arc buckling parts are connected through a connecting seat, and a mutual inductor wiring terminal is arranged on the side face of one arc buckling part.
When in use, the mutual inductor 1 is opened and sleeved on the high-voltage lead 12 and fixed by the blocking joint 5, so that the ferromagnetic interface 4 and the fracture of the ferromagnetic material 13 are ensured to be in good contact, and the smooth magnetic circuit is ensured. Since an alternating current is always present in the high-voltage conductor 12, the variable magnetic induction lines 14 are always present in the ferromagnetic material 13, and an induced current is generated in the mutual inductor 1.
The folding buckle end comprises arc buckling parts, wherein the ferromagnet of one arc buckling part protrudes outwards, and the ferromagnet of the other arc buckling part is inwards concave.
U1＝R2×I2
F spring K X
Obtaining:
wherein R1-adjustable resistance (omega); r2-boost resistance (Ω); r-total resistance of sliding rheostat (omega); i-input current (A);
s-solenoid coil cross sectional area (cm)2) (ii) a W-number of field coil turns (n); l-slide rheostat total length (cm);
k-spring elastic coefficient; delta-distance (cm) between magnet exciting coil and armature (armature is fixed with distance between front exciting scribing sheet and back exciting scribing sheet, the coefficient is constant value)
And (3) calculating: s/delta2╳K＝100,W＝1000，R1＝R＝20Ω，R2＝40Ω,L＝0.1m。
To adjust the output of U1: the following method can be used.
The first method is to increase or decrease the number of current-taking mutual inductors.
The second method comprises the following steps: r, R1 and R2 resistances are adjusted.
The third method comprises the following steps: and adjusting the transformation ratio of the transformer T.
The method and the device can be applied to railway lines, and main line voltage regularly fluctuates at different time intervals.
According to the difference of electric equipment, the stable alternating voltage obtained by the voltage control module can be directly transformed into the required alternating voltage, so that the rectification process is saved.
The utility model discloses application prospect is wide, can solve the power problem of attached low pressure protection, control, equipment such as measurement in the circuit interval, simultaneously, still can provide charging source for the mobile device.
It should be understood that the above detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can still be modified or equivalently replaced to achieve the same technical effects; as long as the use requirement is satisfied, the utility model is within the protection scope.
Claims (7)
1. The utility model provides a circuit of obtaining electric energy, includes accuse pressure module (16), vary voltage module (17), rectifier module (18), filtering module (19), voltage stabilizing module (20), partial pressure module (21) and protection module (22), its characterized in that mutual-inductor (1), accuse pressure module (16), vary voltage module (17), rectifier module (18), filtering module (19), voltage stabilizing module (20), partial pressure module (21), protection module (22), battery (9) link to each other in proper order.
2. The circuit for obtaining electric energy according to claim 1, wherein the voltage control module (16) comprises a fuse F, an adjustable resistor R1, a resistor R2 and an electromagnetic rheostat (23), the electromagnetic rheostat comprises an excitation coil (23-1), an armature (23-2), a spring (23-3) and a slide rheostat (23-7), the armature (23-2) is arranged on one side of the excitation coil (23-1), the end of the armature (23-2) far away from the excitation coil (23-1) is connected with one end of the spring (23-3), the other end of the spring (23-3) is connected with a support body, and the excitation coil (23-1) is fixed on the support structure and keeps a fixed position;
the lower end of the magnet exciting coil (23-1) is provided with a front excitation scribing sheet and a rear excitation scribing sheet along the length direction of the magnet exciting coil (23-1), the upper end of the excitation scribing sheet is electrically connected with the lower end of the magnet exciting coil (23-1), the excitation scribing sheet is connected and linked with the armature iron (23-2) through an insulating connecting piece (23-5), and the insulating connecting piece is connected with a slide sheet seat of the slide rheostat (23-7);
one end of the output end of the mutual inductor (1) is connected with the front excitation scribing sheet, the rear excitation scribing sheet is respectively connected with one end of the adjustable resistor R1 and the sliding sheet of the slide rheostat, the coil end of the slide rheostat is respectively connected with one end of the resistor R2 and one end of the input end of the transformation module (17), the other end of the input end of the transformation module (17) is respectively connected with the other end of the resistor R2, the other end of the adjustable resistor R1 and one end of the fuse F, and the other end of the fuse F is connected with the other end of the.
3. The circuit for obtaining electric energy according to claim 1, wherein the filter module (19) comprises an inductor L, a capacitor C1 and a capacitor C2, one end of the capacitor C1 is connected to the positive terminal of the output end of the rectifier module (18) and one end of the inductor L, one end of the capacitor C1 is connected to the negative terminal of the output end of the rectifier module (18), one end of the capacitor C2 and the negative terminal of the input end of the regulator module, and the other end of the capacitor C2 is connected to the other end of the inductor L and the positive terminal of the input end of the regulator module.
4. The circuit for obtaining electric energy according to claim 1, wherein the voltage regulation module (20) comprises a resistor R3 and a voltage regulation diode Dw, one end of the resistor R3 is connected to the positive pole of the output terminal of the filter module (19), the other end of the resistor R3 is connected to the negative pole of the voltage regulation diode Dw and the positive pole of the input terminal of the voltage division module, respectively, and the positive pole of the voltage regulation diode Dw is connected to the negative pole of the output terminal of the filter module (19) and the negative pole of the input terminal of the voltage division module, respectively.
5. The circuit for obtaining electric energy according to claim 1, wherein the voltage dividing module (21) comprises a resistor R5 and a resistor R6, one end of the resistor R5 is connected to one end of the resistor R4 and the power supply end of the protection module (22), the resistor R4 is further connected to the positive terminal of the output end of the voltage stabilizing module (20), the other end of the resistor R5 is connected to the input end of the protection module (22) and one end of the resistor R6, and the other end of the resistor R6 is connected to the negative terminal of the output end of the voltage stabilizing module (20).
6. The circuit for obtaining electric energy according to claim 1, wherein the protection module (22) comprises a comparator K, a positive input terminal of the comparator K is connected to the output terminal of the voltage division module (21), a negative input terminal of the comparator K is respectively connected to the positive terminal of the battery (9) and one end of a resistor R8 through a resistor R7, the other end of the resistor R8 is connected to the collector of a PNP triode Q1, an emitter of the PNP triode Q1 is respectively connected to the positive terminal of a diode D1 and the positive terminal of the power supply terminal of the protection module (22), a negative terminal of a diode D1 is respectively connected to the base of the PNP triode Q1 and the emitter of the PNP triode Q2, the base of the PNP triode Q2 is respectively connected to one end of a resistor R11 and one end of a resistor R12, the other end of a resistor R11 is connected to the output terminal of the comparator K, the other end of the resistor R12 is respectively connected to the, the other end of the resistor R10 is connected with the collector of a PNP triode Q2.
7. The circuit for obtaining electric energy according to claim 6, characterized in that a relay coil KM is arranged between the connection terminals of the resistor R12 and the resistor R11, and a controlled switch QF of the relay is connected between the anode of the diode D1 and the anode of the power supply terminal of the protection module (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920861306.4U CN210092966U (en) | 2019-06-10 | 2019-06-10 | Circuit for obtaining electric energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920861306.4U CN210092966U (en) | 2019-06-10 | 2019-06-10 | Circuit for obtaining electric energy |
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| CN210092966U true CN210092966U (en) | 2020-02-18 |
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| CN201920861306.4U Active CN210092966U (en) | 2019-06-10 | 2019-06-10 | Circuit for obtaining electric energy |
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| CN (1) | CN210092966U (en) |
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