CN203537081U - Novel non-contact power supply system - Google Patents
Novel non-contact power supply system Download PDFInfo
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- CN203537081U CN203537081U CN201320701746.6U CN201320701746U CN203537081U CN 203537081 U CN203537081 U CN 203537081U CN 201320701746 U CN201320701746 U CN 201320701746U CN 203537081 U CN203537081 U CN 203537081U
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Abstract
The utility model provides a novel non-contact power supply system including a power supply side circuit and a power taking side circuit, the power supply side circuit is composed of a three-phase filter circuit, an isolation transformer, a first rectification unit, and a first inversion unit, the power taking side circuit is composed of a non-contact power taking unit, a power taking side transformer, and a second rectification unit, the output of the non-contact power taking unit is input to the second rectification unit via the power taking side transformer, and the novel non-contact power supply system is characterized in that the output end of the second rectification unit is connected with a second inversion unit, the output of the second rectification unit forms three-phase alternating current after the inversion of the second inversion unit, and then the three-phase alternating current is input to a load power supply end. The non-contact power supply system solves the problem that a non-contact power supply system in the prior art is incapable of supplying alternating current, and can directly supply power to an AC electric device, thereby enlarging the application scope of non-contact power supply. and meanwhile, the defects of cable power supply, slide-contact power supply, and storage battery power supply are overcome.
Description
Technical field
The utility model relates to a kind of novel non-contact power supply system, in particular, relates in particular to the novel non-contact power supply system of the required alternating current of a kind of final exportable equipment.
Background technology
Wired supply power mode is to adopt power line directly to power, owing to being limited to the impact of wire length, and the distance that the equipment of motion can not be mobile very long, if there is the working region of intersection between equipment, cable very likely occurs to be wound around or knotting.Utilizing slide-contact-type supply power mode, can be that the range ability of the equipment such as carrier is unrestricted, but obviously has the shortcoming of contact wear, spark, pollution, easy contact.The supply power mode of storage battery can make equipment not be subject to the restriction of cable, but is subject to capacity, the cost impact of battery, and especially for high-power equipment, cost is extremely expensive; Meanwhile, battery life can produce more serious problem of environmental pollution after exhausting.
Non-contact power supply, refers to transmission line and loads on not electrical connection and physical contact, even between them, also has in the situation of relative motion, realizes the transmission of electric energy.The theoretical foundation of non-contact power supply is electromagnetic induction principle.It had both solved the impact that equipment moving length is subject to cable length, had solved again storage battery power supply and had existed Power Limitation, short-lived and slide-contact-type power supply easily to produce the shortcoming of contact wear, spark, pollution and electric shock.Existing non-contact power supply system, AC power is after filtering, rectification and inversion, and the alternating current that forming frequency is higher, inputs in primary coil; Secondary coil is through the mutual inductance effect output electric energy with primary coil, and in many occasions, secondary coil can move with respect to primary coil.
But also there is many unreasonable parts in existing non-contact power supply, has limited its application and development.One, what existing non-contact power supply system was finally exported is direct current, and conventional electric equipment is alternating current, makes its applicable place receive very big restriction.Its two, at supply side, alternating current inputs in the process of inverter circuit through filtering, rectification, due to voltage compensating circuit not being set, very easily causes the direct voltage inputing in inverter circuit unstable, affects the quality that inversion goes out alternating current.Its three, existing non-contact power supply, generally only has a power output end utilizing for load, for many occasions, not only will carry out non-contact power supply to load, also will carry out non-contact power supply to control section.
Summary of the invention
The utility model, in order to overcome the shortcoming of above-mentioned technical problem, provides the novel non-contact power supply system of the required alternating current of a kind of final exportable equipment.
Novel non-contact power supply system of the present utility model, comprise supply side circuit and power taking lateral circuit, described supply side circuit is comprised of three-phase filter circuit, isolating transformer, the first rectification unit and the first inversion unit, three-phase filter circuit inputs to isolating transformer after to three phase mains filtering, and the output of isolating transformer inputs to the first inversion unit after the first rectifier power source; Power taking lateral circuit is comprised of contactless power taking unit, power taking side transformer and the second rectification unit, and the output of contactless power taking unit inputs in the second rectification unit after power taking side transformer; Contactless power taking unit is comprised of the primary coil being connected with the first inversion unit and the secondary coil that is connected with power taking side transformer; Its special feature is: the output of described the second rectification unit is connected with the second inversion unit, and the output of the second rectification unit forms three-phase alternating current and inputs to load power source end after the second inversion unit inversion.
By in power taking side, the second inversion unit being set, the direct current of existing non-contact power supply system output can be converted into three-phase alternating current, can order about alternating current equipment work.
Novel non-contact power supply system of the present utility model, between described the first rectifier power source and the first inversion unit, be provided with compensating unit between the second rectification unit and the second inversion unit; Described compensating unit is comprised of the current-limiting resistance that is connected to capacitor C 1, the C2 between positive and negative busbar after connecting and go here and there on bus, and the two ends of capacitor C 1, C2 are parallel with respectively resistance R C1, RC2, and the two ends of current-limiting resistance are parallel with short switch.Compensating unit is set, has guaranteed to input to the stability of voltage on inversion unit.
Novel non-contact power supply system of the present utility model, described power taking side transformer comprises two secondary side winding, a secondary side winding is for providing power supply to the second rectification unit, another secondary side winding is connected with the 3rd rectifier power source, the output of the 3rd rectification unit inputs in the 3rd inversion unit after compensating unit, and the output of the 3rd inversion unit is connected with control power end.By setting up a secondary side winding, can form the power supply of adopting for control circuit.
Novel non-contact power supply system of the present utility model, described the first inversion unit is identical with the structure of the 3rd inversion unit, by 4 MOSFET device M1, M2, M3, M4, forms; M1 connects with M3 afterwards, M2 is connected between positive and negative busbar after connecting with M4, and the junction of the junction of M1 and M3, M2 and M4 forms the output of single-phase alternating current; Described the second rectification unit is comprised of 6 MOSFET device M5, M6, M7, M8, M9, M10, M5 connects with M8 afterwards, M7 connects with M10 afterwards, M9 is connected between positive and negative busbar after connecting with M6, and the junction of the junction of the junction of M5 and M8, M7 and M10, M9 and M6 forms the output of three-phase alternating current; The two ends of each MOSFET device are all parallel with fly-wheel diode.
The beneficial effects of the utility model are: non-contact power supply system of the present utility model, by setting up inversion unit in power taking side, having solved existing non-contact power supply system can not provide the problem of alternating current, can directly to AC electric equipment, power, increase the range of application of non-contact power supply.User adopts novel non-contact power supply system of the present utility model, and the improvement without carrying out on circuit, can be applicable in AC electric equipment.
By setting up in power taking side to controlling power end, provide the loop of power supply, realized the independent power supply to control section, make control section, load be non-contact power supply, should use convenient.By compensating unit being set between rectifier power source and inversion unit, guaranteed the voltage stability of inversion unit input.
After novel non-contact power supply system applies of the present utility model, the problem of the wiring difficulty that the equipment that solved produces because cable length and equipment working region intersect, solved the battery capacity that powered battery mode produces little, must often charge and battery life is limited and the problem of environmental pollution of battery generation.Also solve slide-contact-type power supply and easily produced the problem of wearing and tearing, spark, dust pollution and contact, greatly improved the application of equipment, as solved slide-contact-type power supply and cannot require for cleanliness factors such as food, medicine, biotechnology, electronics the problem in harsh field.Because circuit greatly reduces, also reduce failure rate and the preventive maintenance time of equipment simultaneously, improved productivity ratio and the utilance of equipment.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of non-contact power supply system power supply side of the present utility model;
Fig. 2 is the circuit diagram of non-contact power supply system power taking side of the present utility model.
In figure: 1 three-phase filter circuit, 2 isolating transformers, 3 first rectification units, 4 compensating units, 5 first inversion units, 6 contactless power taking unit, 7 power taking side transformers, 8 second rectification units, 9 compensating units, 10 second inversion units, 11 load power source ends, 12 the 3rd rectification units, 13 compensating units, 14 the 3rd inversion units, 15 control power end.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
Non-contact power supply system of the present utility model is comprised of supply side circuit and power taking lateral circuit, as shown in Figure 1, provided the circuit diagram of supply side, it comprises three-phase filter circuit 1, isolating transformer 2, the first rectification unit 3, compensating unit 4, the first inversion unit 5; The input of three-phase filter circuit 1 is connected with the three phase mains of power frequency, and effect is that high order harmonic component is filtered out, and obtains the power supply of the power frequency sine wave that is near the mark.The output of three-phase filter circuit 1 inputs in the first rectification unit 3 after isolating transformer 2, and isolating transformer 2 makes the electric insulation completely of primary side and secondary side, also makes this loop isolation, and rectification unit 3 becomes direct current AC rectification.The output of the first rectifier power source 3 inputs to the input of the first inversion unit 5 after compensating unit 4, the first inversion unit 5 becomes the high-frequency alternating current of 20KHZ to offer the primary coil of contactless power taking unit 6 DC inverter, to improve the efficiency of electromagnetic conversion.Before compensating unit 4 becomes inversion by voltage transitions after filtering compensation, required galvanic current is pressed.
Shown compensating unit 4 is comprised of capacitor C 1 and C2, resistance R C1 and RC2, current-limiting resistance RS and short switch KS1, and shown capacitor C 1 is connected on direct current positive and negative busbar after connecting with C2, and it can adopt electrochemical capacitor, to realize the storage to electric energy.Resistance R C1, RC2 are parallel to respectively the two ends of electric capacity RC1, RC2, and current-limiting resistance RS is connected on DC bus, and short switch KS1 and current-limiting resistance RS are in parallel.Compensating unit 4 is equivalent to jumbo tank circuit, and the characteristic because electric capacity both end voltage can not be suddenlyd change, is powering on the starting stage, capacitor element easily forms " short circuit ", to form great surge charging current, rectification module will be caused to heavy current impact, thereby cause damage.Therefore, in the charging starting stage, short switch KS1, in open mode, carries out current-limiting charge so that current-limiting resistance RS puts in loop to electric capacity, has suppressed maximum charging current, continuity along with charging process, on electric capacity, set up gradually charging voltage, when its voltage magnitude reach specified amplitude 80%～90% time, KS1 switch is closed, after having charged, capacitor C 1, C2 are for keeping the input of the first inversion unit 5 to have stable power supply input.
As shown in Figure 2, provided the circuit diagram of the non-contact power supply system power taking side of utility model, shown power taking lateral circuit comprises contactless power taking unit 6, power taking side transformer 7, the second rectification unit 8, compensating unit 9, the second inversion unit 10 and load power source 11; Contactless power taking unit 6 is comprised of primary coil and secondary coil, primary coil is connected with the output of the first inversion unit 5, secondary coil is connected on the input of power taking transformer 7, and secondary coil and primary coil produce voltage output through undesirable mutual electromagnetic inductance effect.Shown power taking side transformer 7 has two secondary side winding, and a secondary side winding is connected with the input of the second rectification circuit 8, and another secondary side winding is powered to control loop.The output of the second rectification unit 8 inputs in the second inversion unit 10 after compensating unit 9, rectification unit 8 converts direct current to the alternating current of 20KHZ, compensating circuit 9 is by filtering compensation, and before after filtering compensation, voltage transitions becomes inversion, required galvanic current is pressed.The second inversion unit 10 is to input to load power source end 11 after three-phase alternating current by the DC inverter of input.Offset supply 9 is all identical with effect with the formation of the compensating unit 4 of supply side.
The output of another secondary side winding of shown power taking side transformer 7, after the processing of the 3rd rectification unit 12, compensating unit 13, the 3rd inversion unit 14, forms alternating current and inputs on control power end 15.The formation of compensating unit 13 and effect are all identical with the compensating unit 4 of supply side.Switching device in the first inversion unit 5, the second inversion unit 10 and the 3rd inversion unit 14 is all selected MOSFET, MOSFET is Metal-oxide-semicondutor-field-effect transistor, during MOSFET work, without charge-storage effect, therefore switching speed is fast, operating frequency is high, and maximum operation frequency can 200KHZ.It is voltage control electronic component, and input impedance is high, and average driving power is little, thereby drive circuit is relatively simple, and aspect thermal effect, it is overheated that it is difficult for producing, and is also difficult for producing second breakdown, Gu area of safety operaton is larger.
The first shown inversion unit 5 is identical with the structure of the 3rd inversion unit 14, by 4 MOSFET device M1, M2, M3, M4, forms; M1 connects with M3 afterwards, M2 is connected between positive and negative busbar after connecting with M4, and the junction of the junction of M1 and M3, M2 and M4 forms the output of single-phase alternating current.The second shown rectification unit 8 is comprised of 6 MOSFET device M5, M6, M7, M8, M9, M10, M5 connects with M8 afterwards, M7 connects with M10 afterwards, M9 is connected between positive and negative busbar after connecting with M6, and the junction of the junction of the junction of M5 and M8, M7 and M10, M9 and M6 forms the output of three-phase alternating current; The two ends of each MOSFET device are all parallel with fly-wheel diode.
Claims (4)
1. a novel non-contact power supply system, comprise supply side circuit and power taking lateral circuit, described supply side circuit is comprised of three-phase filter circuit (1), isolating transformer (2), the first rectification unit (3) and the first inversion unit (5), three-phase filter circuit inputs to isolating transformer after to three phase mains filtering, and the output of isolating transformer inputs to the first inversion unit after the first rectifier power source; Power taking lateral circuit is comprised of contactless power taking unit (6), power taking side transformer (7) and the second rectification unit (8), and the output of contactless power taking unit inputs in the second rectification unit after power taking side transformer; Contactless power taking unit is comprised of the primary coil being connected with the first inversion unit and the secondary coil that is connected with power taking side transformer; It is characterized in that: the output of described the second rectification unit is connected with the second inversion unit (10), the output of the second rectification unit forms three-phase alternating current and inputs to load power source end (11) after the second inversion unit inversion.
2. novel non-contact power supply system according to claim 1, is characterized in that: between described the first rectifier power source (3) and the first inversion unit (5), be provided with compensating unit between the second rectification unit (8) and the second inversion unit (10); Described compensating unit is comprised of the current-limiting resistance that is connected to capacitor C 1, the C2 between positive and negative busbar after connecting and go here and there on bus, and the two ends of capacitor C 1, C2 are parallel with respectively resistance R C1, RC2, and the two ends of current-limiting resistance are parallel with short switch.
3. novel non-contact power supply system according to claim 1 and 2, it is characterized in that: described power taking side transformer (7) comprises two secondary side winding, a secondary side winding is for providing power supply to the second rectification unit (8), another secondary side winding is connected with the 3rd rectifier power source (12), the output of the 3rd rectification unit inputs in the 3rd inversion unit (14) after compensating unit (13), and the output of the 3rd inversion unit is connected with controls power end (15).
4. novel non-contact power supply system according to claim 1 and 2, is characterized in that: described the first inversion unit (5) is identical with the structure of the 3rd inversion unit (14), by 4 MOSFET device M1, M2, M3, M4, forms; M1 connects with M3 afterwards, M2 is connected between positive and negative busbar after connecting with M4, and the junction of the junction of M1 and M3, M2 and M4 forms the output of single-phase alternating current; Described the second rectification unit (8) is comprised of 6 MOSFET device M5, M6, M7, M8, M9, M10, M5 connects with M8 afterwards, M7 connects with M10 afterwards, M9 is connected between positive and negative busbar after connecting with M6, and the junction of the junction of the junction of M5 and M8, M7 and M10, M9 and M6 forms the output of three-phase alternating current; The two ends of each MOSFET device are all parallel with fly-wheel diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320701746.6U CN203537081U (en) | 2013-11-08 | 2013-11-08 | Novel non-contact power supply system |
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| CN201320701746.6U CN203537081U (en) | 2013-11-08 | 2013-11-08 | Novel non-contact power supply system |
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| CN203537081U true CN203537081U (en) | 2014-04-09 |
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| CN201320701746.6U Expired - Lifetime CN203537081U (en) | 2013-11-08 | 2013-11-08 | Novel non-contact power supply system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI604975B (en) * | 2015-07-17 | 2017-11-11 | 松下知識產權經營股份有限公司 | Power wire retraction device and contactless insulated trolley using the same |
| CN108400582A (en) * | 2018-02-05 | 2018-08-14 | 大连理工大学 | A kind of single conductor electric energy transmission system based on tesla's high-tension coil short circuit |
-
2013
- 2013-11-08 CN CN201320701746.6U patent/CN203537081U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI604975B (en) * | 2015-07-17 | 2017-11-11 | 松下知識產權經營股份有限公司 | Power wire retraction device and contactless insulated trolley using the same |
| CN108400582A (en) * | 2018-02-05 | 2018-08-14 | 大连理工大学 | A kind of single conductor electric energy transmission system based on tesla's high-tension coil short circuit |
| CN108400582B (en) * | 2018-02-05 | 2020-12-11 | 大连理工大学 | Single-wire electric energy transmission system based on Tesla high-voltage coil short circuit |
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Address after: 251400 Zheng'an Road East and Yellow River Road North, Jiyang County Jibei Development Zone, Jinan City, Shandong Province (Yellow River Bridge Toll Station to 200 meters west north) Patentee after: Ji'nan Austria Puruisi Intelligent Equipment Co. Ltd. Address before: 251400 No. 1 Huanghe Street, Jiyang County Jibei Development Zone, Jinan City, Shandong Province Patentee before: JINAN DOPO ROBOT MANUFACTURE CO., LTD. |