CN201054544Y - Non contact rotary power converter - Google Patents
Non contact rotary power converter Download PDFInfo
- Publication number
- CN201054544Y CN201054544Y CNU2007200400936U CN200720040093U CN201054544Y CN 201054544 Y CN201054544 Y CN 201054544Y CN U2007200400936 U CNU2007200400936 U CN U2007200400936U CN 200720040093 U CN200720040093 U CN 200720040093U CN 201054544 Y CN201054544 Y CN 201054544Y
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- former limit
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- magnetic core
- electromagnetic coupler
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- 238000004804 winding Methods 0.000 claims abstract description 36
- 230000003068 static effect Effects 0.000 claims description 4
- 229910000859 α-Fe Inorganic materials 0.000 claims description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000009351 contact transmission Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model provides a non-contact rotary power converter; The output end of the direct current power is connected with the input end of the primary side control circuit; the output end of the primary side control circuit is connected with the input end of the primary side primary winding in an electromagnetic coupler, the output end of the auxiliary side secondary winding in the electromagnetic coupler is connected with the input end of the rectifying circuit, and an air clearance is reserved between the primary side primary winding and the auxiliary side secondary winding of in the electromagnetic coupler. No limit of service life, the utility model has the advantages of small volume, light weight and convenient assembly. By adopting of the characteristic that the primary auxiliary side magnetic core needs air clearance, the utility model prevents the shortcoming of friction generated by high rotate speed due to contact, thereby has advantages of perfect stability, easy making and low cost as well as short secondary design period of different output power, thereby being applicable to the rotation components with various rotate speed. By changing the size of the magnetic core and the parameter of the coil, the power with various output power is available. Experiment proves that within certain input range of the direct current voltage, the utility model can obtain the output power required by design which is enough to provide the electric energy to the data acquisition system on the rotation component.
Description
Technical field
The utility model be a kind of under the rotation operating mode on revolving part the non-contacting rotary power-supply converter of electric energy transmitting, belong to the power conversion technical field.
Background technology
For accuracy and the adequacy that improves the rotating parts characteristic test, need to gather in real time the dynamic parameter of rotating parts under the high speed rotating state.And how to carry out that electric energy supplies be one of current technical difficult points that faces in order to be positioned at test circuit on the rotating parts.
Domestic and international application mainly contains slip ring power supply and powered battery mode in the supply of electrical energy of rotating parts data acquisition system at present.Slip ring power supply is transmitted signal and electric current by the elastic pressure and the sliding contact of conducting slip ring annular groove of brush, be fit to be applied in needs from the fixed position to the position of rotation unconfined, rotate the place of delivering power or data-signal continuously.But under the high speed rotating state, during long-time running, can produce bigger resistance because of galvanic corrosion between slip ring and the brush, thereby make the power transfer instability; Powered battery is that battery is installed on the rotating parts, and its operation principle is simple, but battery capacity is limited, is not suitable for using in measuring system for a long time, and jumbo battery volume and weight is all bigger, installs also inconvenient.In order to solve the problem that exists in these supply power modes, Chinese scholars is mainly being improved slip ring manufacturing process and material at present, reducing aspects such as battery volume and weight studies, it is the revolving part power supply with generator principle that proposition is also arranged, but there be the rotary speed problem related, be not suitable for the wide region rotating speed and use with power supply capacity.Up to the present, Shang Weijian has the report of non-contacting rotary power-supply converter, does not propose to utilize the scheme of electromagnetic induction principle design non-contacting rotary power-supply converter basically.
Summary of the invention
The purpose of this utility model has been intended to propose a kind of non-contacting rotary power-supply converter of brand new, realize the coupling of noncontact energy by the air-gap between the magnetic core of former and deputy limit, realize carrying out under the axial static relatively and circumferential relative motion state purpose of electric energy transmitting, and eliminated the influence that friction factor produces under the high speed rotating, improved the reliability of system's power supply greatly, significantly reduce simultaneously the weight and volume of load system again, be fit to the instructions for use under the high rotating speed.
Technical solution of the present utility model: its structure is the input of the former limit of the output termination control circuit of DC power supply, the elementary winding input in former limit in the output termination electromagnetic coupler of former limit control circuit, the input of the secondary secondary winding output termination rectification circuit in the electromagnetic coupler is the air gap between elementary winding in former limit in the electromagnetic coupler and secondary secondary winding.
Advantage of the present utility model: not only volume little, in light weight, be convenient to install, and do not have the restriction in useful life, the life-span can reach infinitely great theoretically.Compare with the slip ring supply power mode, the present invention utilizes former secondary magnetic core to need the characteristics of air-gap, has avoided producing under high rotating speed owing to contact the drawback of friction, has guaranteed the stable and coiling of system works.Make easily, cost is low, and the Secondary Design cycle of different output power is short, can be applicable to the rotating parts under the various rotating speeds.By changing the parameter of magnetic core size, just can obtain the power supply of various power outputs.Test by the output characteristic of power source under quiescent conditions, the supply convertor that has proved this programme design is in certain direct voltage input range, can access the required power output of designing requirement, enough provide electric energy for the data acquisition system on the rotating parts.
Description of drawings
Accompanying drawing 1 non-contact power supply converter circuit theory diagram.
Accompanying drawing 2 is jar a type core structure and a scheme of installation.Fig. 2-the 1st wherein, jar type magnetic core figure, Fig. 2-the 2nd, the end view of Fig. 2-1, Fig. 2-the 3rd has the magnetic core of former secondary winding.
Accompanying drawing 3 is based on the supply convertor electrical schematic diagram of 0380 controller.
Among the figure 1 is air gap, the 2nd, rotating shaft, the 3rd, bearing, the 4th, power supply round end, the 5th, power supply stationary end.
Embodiment
Difference elementary winding in the former limit of coiling and former limit feedback winding on the column structure of former limit core center.Coiling secondary secondary winding on the secondary core center cylinder.
Utilize inverse-excitation type switch power-supply to need the characteristics of air gap, solved the problem of electric energy non-contact transmission.
According to the inverse-excitation type switch power-supply principle, designed former limit control loop, select for use and have the integrated manipulator KA5L0380 that function is adjusted in the PWM self feed back, adjust function by the inner PWM self feed back of controller, change switching tube make-and-break time ratio, solved and the secondary circuit output end voltage need have been fed back to the problem that the circuit adjustment is carried out on former limit.The input of application DC power supply stores energy in the air-gap by former limit winding.
The secondary circuit plate adopts circular layout, is installed on the runing rest with secondary magnetic core and winding, has realized the rectifying and wave-filtering function of secondary circuit.For reduce the centrifugal force that each element is subjected on the secondary circuit under the high speed rotating operating mode, should select the little lightweight components and parts of volume on the circuit of former limit as far as possible.
According to output-index design non-contact power supply converter parameters.Calculate the number of turn, the line footpath of former secondary winding and former limit feedback winding, the air gap value between the former secondary magnetic core etc., and then the geometric parameter of selection magnetic core.
Particular application according to this programme is carried out the controller type selecting.Because former limit circuit is static, the secondary circuit rotation can not feed back to former limit circuit with secondary output voltage on the rotating parts, therefore, selects for use to have the KA5L0380 current mode integrated switch power control chip that function is adjusted in the PWM self feed back.
Former secondary magnetic core is selected soft magnetic ferrite jar type magnetic core, and its diameter is determined according to the required magnetic flux of design power.
Former limit control circuit is a core with the KA5L0380 integrated manipulator, utilizes former limit winding and feedback winding, has designed inverse-excitation type switch power-supply circuit, adjusts function by the PWM self feed back of controller inside, realizes the stable output of load terminal voltage.
The secondary circuit plate for satisfying the mounting structure requirement, is made into annular.
Embodiment, adopt a pair of diameter be the jar type soft magnetic ferrite of 26mm as magnetic core, coiling former limit winding and former limit feedback winding respectively on the column structure of former limit core center.Coiling secondary winding on the secondary core center cylinder.The enamelled wire that first coiling 80 circle lines directly are 0.31mm in the magnetic core of former limit is as primary coil, and the enamelled wire that directly is 0.51mm at its outside continuation winding 12 circle lines feeds back winding as former limit subsequently.In the secondary magnetic core, utilize two strands directly to close around 11 circles, as secondary coil for the enamelled wire of 0.51mm.
The high-speed electric expreess locomotive that number is HSB40A-12-0.40-F rotates, and this range of motor speeds is 0-12000rpm.Its axle body directly contrasts accompanying drawing 4.Make up the high speed rotating test-bed, the rotating shaft of test-bed is undertaken the heart is located by two bearings, by frequency converter by V/F mode control type to beating less than 15 μ m, the axle body axial motion is less than 50 μ m, thereby guarantee that rotating shaft end amount of deflection is less, can keep higher concentricity with axle when making the rotation of non-contact power power supply secondary circuit.
Test by the output characteristic of power source under quiescent conditions, the supply convertor that has proved this programme design can be in certain direct voltage input range, obtain the required power output of designing requirement, enough provide electric energy for the data acquisition system on the rotating parts.
After starting high-speed electric expreess locomotive, under the high speed rotating operating mode, output characteristic of power source is verified.Output can not only obtain stable 5V voltage, and as the indicator light of load can be under electric energy provided by the invention operate as normal, and be not subjected to the influence of high frequency switch power, produce a desired effect.
Claims (5)
1. non-contacting rotary power-supply converter, the input that it is characterized in that the former limit of the output termination control circuit of DC power supply, the elementary winding input in former limit in the output termination electromagnetic coupler of former limit control circuit, the input of the secondary secondary winding output termination rectification circuit in the electromagnetic coupler is the air gap between elementary winding in former limit in the electromagnetic coupler and secondary secondary winding.
2. non-contacting rotary power-supply converter according to claim 1 is characterized in that the air gap is 0.1-0.5mm between elementary winding in former limit in the electromagnetic coupler and secondary secondary winding.
3. non-contacting rotary power-supply converter according to claim 1 is characterized in that elementary winding in former limit and secondary secondary winding are wound on respectively on the soft magnetic ferrite jar type magnetic core that diameter range is 5.5mm-60mm.
4. non-contacting rotary power-supply converter according to claim 1 is characterized in that former limit control circuit is an inverse-excitation type switch power-supply circuit.
5. non-contacting rotary power-supply converter according to claim 3 is characterized in that soft magnetic ferrite jar type magnetic core is a pair of, and wherein, a magnetic core is in the static former limit circuit, and another is on the revolving part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200400936U CN201054544Y (en) | 2007-06-26 | 2007-06-26 | Non contact rotary power converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200400936U CN201054544Y (en) | 2007-06-26 | 2007-06-26 | Non contact rotary power converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201054544Y true CN201054544Y (en) | 2008-04-30 |
Family
ID=39394202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200400936U Expired - Fee Related CN201054544Y (en) | 2007-06-26 | 2007-06-26 | Non contact rotary power converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201054544Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102394515A (en) * | 2011-09-20 | 2012-03-28 | 江苏江鹤滑线电气有限公司 | Non-contact-type slide-wire device |
| TWI499475B (en) * | 2012-10-04 | 2015-09-11 | Metal Ind Res & Dev Ct | Induction-type electrically coupled rotary joint |
| CN105300435A (en) * | 2014-06-11 | 2016-02-03 | 京元电子股份有限公司 | Testing system having non-contact conversion power supply |
-
2007
- 2007-06-26 CN CNU2007200400936U patent/CN201054544Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102394515A (en) * | 2011-09-20 | 2012-03-28 | 江苏江鹤滑线电气有限公司 | Non-contact-type slide-wire device |
| TWI499475B (en) * | 2012-10-04 | 2015-09-11 | Metal Ind Res & Dev Ct | Induction-type electrically coupled rotary joint |
| CN105300435A (en) * | 2014-06-11 | 2016-02-03 | 京元电子股份有限公司 | Testing system having non-contact conversion power supply |
| CN105300435B (en) * | 2014-06-11 | 2018-01-19 | 京元电子股份有限公司 | Test system with non-contact conversion electric power |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080430 Termination date: 20100626 |