CN204361762U - A kind of small rail car charging device based on electromagnetic induction - Google Patents
A kind of small rail car charging device based on electromagnetic induction Download PDFInfo
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- CN204361762U CN204361762U CN201420813304.5U CN201420813304U CN204361762U CN 204361762 U CN204361762 U CN 204361762U CN 201420813304 U CN201420813304 U CN 201420813304U CN 204361762 U CN204361762 U CN 204361762U
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Abstract
A kind of small rail car charging device based on electromagnetic induction, it is characterized in that comprising current-collecting device and power transmission device, described current-collecting device is arranged on small rail car, comprise secondary coil, current rectifying and wave filtering circuit and power conditioning circuitry, described power transmission device is fixedly connected with tunnel, small rail car place correspondence position, comprise current rectifying and wave filtering circuit, high frequency modulated circuit, resonance power amplifier and primary coil, described power transmission device current rectifying and wave filtering circuit input is electrically connected with industrial frequency AC, output is connected with described high frequency modulated circuit, described high frequency modulated circuit output end is connected with described resonance power amplifier input, described resonance power amplifier output is connected with described primary coil, described primary coil is charging output, described power transmission device is come to described current-collecting device transferring electric power by electromagnetic induction.The utility model adopts cordless to power, the plurality of advantages such as have safe, convenient, easy care and reliability is high.
Description
Technical field
The utility model relates to electromagnetic induction Coupled Power Transfer technical field, is specifically related to a kind of non-contact charger and charging method thereof of underground rail dolly.
Background technology
In coal mine, small rail car carries the important duty such as the various plant equipment of transport, but the Power supply of dolly has but become this kind of visual plant to enter the obstacle of practical stage.Existing mine power resource is powered and is usually adopted in two ways: a part adopts cable mode directly to power; Another part adopts trolley and current-collector to power.Direct physical connection must be had between this two kinds of supply power mode power supplys and load, under the inflammable and explosive occasions such as mine, it has a lot of defect and deficiency, the fail safe of such as system and reliability thereof, useful life low and subterranean well liquid and water corrosion etc., these all can bring the risk of the person and device security.
Therefore, in order to overcome above-mentioned defect, in the urgent need to introducing a kind of contactless method of electric energy transfer, use electromagnetic induction principle to carry out delivery of electrical energy, the defect that elimination physical connection is brought and potential safety hazard.
Utility model content
The utility model provides a kind of small rail car charging device based on electromagnetic induction in order to solve the problem.
Technical problem to be solved in the utility model realizes by the following technical solutions:
A kind of underground rail dolly charging device based on electromagnetic induction, it is characterized in that comprising current-collecting device and power transmission device, described current-collecting device is arranged on small rail car, comprise secondary coil, current rectifying and wave filtering circuit and power conditioning circuitry, described power transmission device is configured to not contact with above-mentioned current-collecting device, comprise current rectifying and wave filtering circuit, high frequency modulated circuit, resonance power amplifier and primary coil, described power transmission device current rectifying and wave filtering circuit input is electrically connected with industrial frequency AC, output is connected with described high frequency modulated circuit, described high frequency modulated circuit output end is connected with described resonance power amplifier input, described resonance power amplifier output is connected with described primary coil, described primary coil is charging output, described power transmission device is fixedly connected with tunnel, small rail car place correspondence position, described power transmission device is come to described current-collecting device transferring electric power by electromagnetic induction, when described power transmission device primary coil and described electricity reception coil secondary coil are within the scope of certain distance, and the tranmitting frequency of primary coil identical with the frequency in secondary coil loop time, just can realize the efficient stable transmission of electric energy.Described power transmission device distributed points arranges multiple, meets the power demands of small rail car during ongoing operations.
A kind of underground rail dolly power transmission device based on electromagnetic induction, it is characterized in that described current-collecting device is fixed on bottom small rail car, as the receiving terminal receiving external power, described power transmission device is fixedly connected with tunnel, small rail car place correspondence position, as the transmitting terminal sending electric power, described current-collecting device and power transmission device all comprise two receiving terminals and transmitting terminal, for improving the efficiency of transmission of electric energy.
When dolly needs charging, travelling car makes it near primary inductance position, when dolly and primary inductance position are to best time corresponding, now, industrial-frequency alternating current through current rectifying and wave filtering circuit, then becomes the alternating current of high frequency through high frequency modulated circuit, high-frequency alternating current launches electromagnetic energy through primary coil to secondary coil, secondary coil will induce corresponding frequencies induced voltage, then to dolly battery constant charge after rectifying and wave-filtering voltage stabilizing.
More specifically, the current rectifying and wave filtering circuit of described power transmission device and resonance power amplifier are primarily of NE555 signal generator, 6N137 photoelectric coupling chip and switching circuit are formed, described NE555 chip is one and has many uses and only need resistance and the electric capacity of minority, just the pulse wave signal of various different frequency can be produced, described 6N137 optical coupler is a for single pass High-Speed Coupled Device, main application comprises high speed digital switches etc., further, in order to obtain required power output, the field effect transistor that drain electrode power consumption is enough large selected by switching circuit, its operating current and drain voltage are all higher, not only guaranteed to provide enough amplitude simultaneously but also do not damage metal-oxide-semiconductor, therefore the design's circuit selects IRF540.
The beneficial effects of the utility model are: a kind of underground rail dolly charging device based on electromagnetic induction adopts non-contact power supply mode, avoid wire directly to power and contact the potential safety hazard that Mars brings, have simultaneously efficiency of transmission high, lay simple, coefficient of safety advantages of higher, it is many convenient to bring to underground work.
Accompanying drawing explanation
Fig. 1 non-contact power supply service system structural representation.
Fig. 2 non-contact power supply system power radiating circuit figure.
Fig. 3 non-contact power supply system power receiving circuit.
Fig. 4 execution mode structure chart of the present utility model.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of small rail car charging device based on electromagnetic induction, comprises current-collecting device: containing secondary coil, current rectifying and wave filtering circuit, power conditioning circuitry; Power transmission device: containing high frequency modulated circuit, resonance power amplifier and primary coil.Described current-collecting device is fixed on fixed position bottom small rail car, described power transmission device is fixedly connected with accordingly with the current-collecting device of small rail car, the input of described power transmission device current rectifying and wave filtering circuit is electrically connected with industrial frequency AC, output is connected with described high frequency modulated circuit, the output of described high frequency modulated circuit is connected with described resonance power amplifier input, the output of described resonance power amplifier is connected with described primary coil, described primary coil is charging output, described power transmission device by electromagnetic induction to the current-collecting device transferring electric power be arranged on small rail car.
Power transmission device is formed primarily of current rectifying and wave filtering circuit, high frequency modulated circuit, resonance power amplifier and primary coil. as shown in Figure 2, NE555 is adopted to form concussion frequency 10kHZ ~ 100kHZ signal generator, pumping signal is provided, the shutoff of driven MOS FET is gone again through photoelectric coupling chip 6N137 isolation, in this circuit, IRF540 field effect transistor is as the core parts of high frequency modulated, also resonance signal can be amplified, tuned power amplifier is made up of LC shunt circuit and IRF540 simultaneously.By
known, if when resonance frequency is 10kHZ ~ 100kHZ, by actual measurement inductance value, the capacitance size with coils from parallel connection of coils and then conveniently adjusted resonance frequency can be obtained.
Current-collecting device is formed primarily of circuit such as secondary coil, current rectifying and wave filtering circuit, power conditioning circuitries, as shown in Figure 3, when the resonance frequency of tuned power amplifier is identical with exciting signal frequency, power amplifier generation resonance, now primary coil produces maximum alternating electromagnetic field, when secondary coil and primary coil near time, secondary coil will produce induced voltage, if the frequency in secondary coil loop is identical with the resonance frequency of primary coil, secondary coil induced voltage reaches maximum.For this reason, electric capacity C in this current-collecting device circuit
1equal C
2, the L of mutual inductor
1equal L
2.
As shown in Figure 4, in the utility model implementation process, arrange multiple contactless charging point in tunnel, small rail car place, for each small rail car charging system, all use 2 electricity reception coil and 2 power transmission coils, do like this and by multiple path transmission electric power, power transmission efficiency can be improved.
More than show and describe general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. the underground rail dolly charging device based on electromagnetic induction, it is characterized in that comprising current-collecting device and power transmission device, described current-collecting device is arranged on small rail car, comprise secondary coil, current rectifying and wave filtering circuit and power conditioning circuitry, described power transmission device is configured to not contact with above-mentioned current-collecting device, comprise current rectifying and wave filtering circuit, high frequency modulated circuit, resonance power amplifier and primary coil, described power transmission device current rectifying and wave filtering circuit input is electrically connected with industrial frequency AC, output is connected with described high frequency modulated circuit, described high frequency modulated circuit output end is connected with described resonance power amplifier input, described resonance power amplifier output is connected with described primary coil, described primary coil is charging output, described power transmission device is fixedly connected with tunnel, small rail car place correspondence position, described power transmission device is come to described current-collecting device transferring electric power by electromagnetic induction, when described power transmission device primary coil and described electricity reception coil secondary coil are within the scope of certain distance, and the tranmitting frequency of primary coil identical with the frequency in secondary coil loop time, just can realize the efficient stable transmission of electric energy.
2. a kind of underground rail dolly charging device based on electromagnetic induction according to claim 1, it is characterized in that described current-collecting device is fixed on bottom small rail car, as the receiving terminal receiving external power, described power transmission device is fixedly connected with tunnel, small rail car place correspondence position, as the transmitting terminal sending electric power, described current-collecting device and power transmission device all comprise two receiving terminals and transmitting terminal, for improving the efficiency of transmission of electric energy.
3. a kind of underground rail dolly charging device based on electromagnetic induction according to claim 1, it is characterized in that industrial-frequency alternating current is through current rectifying and wave filtering circuit, the alternating current of high frequency is become again through high frequency modulated circuit, high-frequency alternating current launches electromagnetic energy through primary coil to secondary coil, secondary coil will induce corresponding frequencies induced voltage, power to the load after rectifying and wave-filtering voltage stabilizing, the current rectifying and wave filtering circuit of described power transmission device and resonance power amplifier are formed primarily of NE555 signal generator, 6N137 photoelectric coupling chip and switching circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420813304.5U CN204361762U (en) | 2014-12-18 | 2014-12-18 | A kind of small rail car charging device based on electromagnetic induction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420813304.5U CN204361762U (en) | 2014-12-18 | 2014-12-18 | A kind of small rail car charging device based on electromagnetic induction |
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| Publication Number | Publication Date |
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| CN204361762U true CN204361762U (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420813304.5U Expired - Fee Related CN204361762U (en) | 2014-12-18 | 2014-12-18 | A kind of small rail car charging device based on electromagnetic induction |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655427A (en) * | 2017-02-14 | 2017-05-10 | 薛建仁 | Station charging apparatus of new energy sky train |
| CN107907726A (en) * | 2017-10-13 | 2018-04-13 | 国网山东省电力公司济南供电公司 | A kind of detection device and method of tunnel cable grounding circulation |
| CN109283921A (en) * | 2018-09-30 | 2019-01-29 | 中铁武汉勘察设计研究院有限公司 | A kind of intelligent container rail flat car control system and rail flat car |
-
2014
- 2014-12-18 CN CN201420813304.5U patent/CN204361762U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655427A (en) * | 2017-02-14 | 2017-05-10 | 薛建仁 | Station charging apparatus of new energy sky train |
| CN107907726A (en) * | 2017-10-13 | 2018-04-13 | 国网山东省电力公司济南供电公司 | A kind of detection device and method of tunnel cable grounding circulation |
| CN109283921A (en) * | 2018-09-30 | 2019-01-29 | 中铁武汉勘察设计研究院有限公司 | A kind of intelligent container rail flat car control system and rail flat car |
| WO2020062724A1 (en) * | 2018-09-30 | 2020-04-02 | 中铁武汉勘察设计研究院有限公司 | Smart container railway flatcar control system and railway flatcar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150527 Termination date: 20151218 |
|
| EXPY | Termination of patent right or utility model |