CN204794209U - Dynamic inductance device with damping function - Google Patents
Dynamic inductance device with damping function Download PDFInfo
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- CN204794209U CN204794209U CN201520497852.6U CN201520497852U CN204794209U CN 204794209 U CN204794209 U CN 204794209U CN 201520497852 U CN201520497852 U CN 201520497852U CN 204794209 U CN204794209 U CN 204794209U
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- power supply
- wheel diode
- damping
- stator
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Abstract
The utility model provides a dynamic inductance device with damping function, contains: a rotor, a stator, three -phase coil and a dynamic damping circuit. The three -phase coil set up rotor and stator one of them, and be connected each other and form the Y type wire winding that has a central point and three contacts. The developments damping circuit has flywheel diode cluster and two damping electric capacity three and that a DC power supply is parallelly connected. Each flywheel diode cluster has a first flywheel diode and a second flywheel diode of establishing ties each other, and the contact connection of each looks coil is between first, the second flywheel diode that corresponds, and this two dampings electric capacity is connected respectively and is being reached between central point and DC power supply's the negative terminal between central point and DC power supply's the anode. When the rotor rotates for the stator, can make three -phase coil generate current and charge to damping electric capacity via two flywheel diode cluster wherein to return the electric power of storing by damping electric capacity and fill to DC power supply.
Description
Technical field
The utility model relates to a kind of inductance device, particularly relates to a kind of dynamic inductance device with damping function.
Background technology
Three-phase direct-current brushless motor drive circuit in the past, be electrically connected on a DC power supply, and a three-phase direct-current brushless revolution can be controlled within a basic cycle, and at the end of this basic cycle, the three-phase coil of this three-phase direct-current brushless motor can produce a back electromotive force instantaneously, the big current that this back electromotive force is formed can produce impacting with high pressure to this DC power supply, easily causes burning of this DC power supply.In addition, back electromotive force also cannot recharge to DC power supply by three-phase direct-current brushless motor drive circuit in the past, so will cause the waste of the energy.
Utility model content
The purpose of this utility model is to provide a kind of dynamic inductance device with damping function, and the electric energy contributing to the back electromotive force produced by the drive circuit of DC Brushless Motor recharges to DC power supply.
So the dynamic inductance device that the utility model has damping function is implemented, in aspect, to comprise a rotor, a stator, three-phase coil at some, and a dynamic antivibration circuit.This three-phase coil be arranged on this rotor and this stator one of them, and this three-phase coil is connected to each other and forms the Y type coiling with a central point and three contacts.This dynamic antivibration circuit have three with the free-wheel diode group of a direct current power sources in parallel and two damping capacitors.Each free-wheel diode group has one first free-wheel diode and one second free-wheel diode that are one another in series, between this first free-wheel diode that the contact of each phase coil is connected to this corresponding free-wheel diode group and this second free-wheel diode, this two damping capacitor is connected between this central point and anode of this DC power supply, and between this central point and negative terminal of this DC power supply.When this rotor is relative to this stator rotation, this three-phase coil generation current can be made and via first free-wheel diode of this wherein free-wheel diode group, this damping capacitor be connected between the anode of this DC power supply and this central point is charged, and via the second free-wheel diode of this another free-wheel diode group, to be connected between this central point and negative terminal of this DC power supply this damping capacitor charging, and by described damping capacitor by store electric power recharging to this DC power supply.
Implement in aspect at some, this dynamic inductance device with damping function also comprises at least three and is arranged on this rotor and this stator wherein another magnet, and this three-phase coil is set around three iron cores respectively, and the combination of each phase coil this iron core corresponding with it is a damping circuit.
Implement in aspect at some, this DC power supply is a storage battery, this dynamic antivibration circuit also has an electrolytic cell in parallel with this storage battery, and the described damping capacitor of this dynamic antivibration circuit can first charge to this electrolytic cell, then is charged to this DC power supply by this electrolytic cell.
Implement in aspect at some, the negative electrode of this first free-wheel diode of each free-wheel diode group of this dynamic antivibration circuit is connected to the anode of this DC power supply, the negative electrode of this second free-wheel diode is connected to the anode of this first free-wheel diode, and its anode is connected to the negative terminal of this DC power supply.
Implement in aspect at some, this rotor is provided at the periphery of this stator and rotates around this stator, and described magnet is arranged at this rotor, and described damping circuit is then be arranged at this stator.
The beneficial effects of the utility model are: by rotor relative to stator rotation, can make three-phase coil generation current, and the described damping capacitor charging to dynamic antivibration circuit, then the electric energy of storage can recharge to DC power supply by described damping capacitor smoothly.
Accompanying drawing explanation
Fig. 1 is that the utility model has an embodiment of the dynamic inductance device of damping function and the schematic diagram of a three-phase direct-current brushless motor;
Fig. 2 is a dynamic inductance device schematic diagram, and illustrate that the iron core of the three-phase coil and correspondence thereof adopting the coiling of Y type is arranged at a rotor, multiple magnet is arranged at a stator;
Fig. 3 is a circuit diagram, and a dynamic antivibration circuit of this embodiment and the structure of one drive circuit are described;
Fig. 4 is a three-phase coil coiling schematic diagram, and the three-phase coil adopting the coiling of Δ type is described;
Fig. 5 is a circuit operation figure, and the type of drive of the drive circuit of this embodiment is described;
Fig. 6 is a dynamic inductance device schematic diagram, and the three-phase coil generation current of Y type coiling is described; And
Fig. 7 is a circuit operation figure, and the drive circuit of this embodiment and the type of drive of dynamic antivibration circuit are described.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in detail.
Consulting Fig. 1, Fig. 2 and Fig. 3, is one of the utility model dynamic inductance device with damping function embodiment, and in the present embodiment, dynamic inductance device 3 is driven by a DC Brushless Motor 1 and operates.
This dynamic inductance device 3 comprises stator 31, rotor 32, Y type three-phase coil 33, three iron cores 34, four magnet 35, and a dynamic antivibration circuit 4.Specifically, rotor 32 can rotate around stator 31 and be connected with the rotor 11 of this DC Brushless Motor 1 by a rotating shaft 5, and therefore, when rotor 11 rotates, by rotating shaft 5, rotor driven 32 rotates; And preferably, in practical application, the periphery that rotor 32 is provided at stator 31 rotates around stator 31.Y type three-phase coil 33 is arranged on stator 31, and its three-phase coil Lr, Lt, Ls are connected to each other and form the Y type coiling with a central point N and three contact R, S, T.Described iron core 34 is also arranged on stator 31, and correspond respectively to three-phase coil Lr, Lt, Ls, in other words, three-phase coil Lr, Lt, Ls are set around corresponding described iron core 34 (note: because Fig. 2 is the equivalent schematic of the present embodiment respectively, therefore the aspect of coil actual winding iron core is not shown), and the combination of each phase coil Lr, Lt, Ls iron core 34 corresponding with it is a damping circuit, the concrete structure of this damping circuit and characteristic have been exposed in TaiWan, China and have announced M470365 patent, list herein by reference in the lump.And described magnet 35 is permanent magnet, and be arranged at rotor 32 spaced apartly.It is worth mentioning that, three-phase coil Lr, Lt, Ls also can be arranged on rotor 32, rotate with rotor 32, and export with the electric energy having brush mode three-phase coil Lr, Lt, Ls to be produced.
As shown in Figure 3, this dynamic antivibration circuit 4 comprises three and a DC power supply V
dCfree-wheel diode group (for convenience of description, hereinafter referred to as R phase free-wheel diode group, S-phase free-wheel diode group and T-phase free-wheel diode group), two damping capacitor Cd in parallel, and an electrolytic cell Va.Wherein each free-wheel diode group has the one first free-wheel diode D1 and one second free-wheel diode D2 that are one another in series, and between contact R, S, T of this three-phase coil Lr, Lt, Ls the first free-wheel diode D1 of being connected to corresponding each free-wheel diode group and the second free-wheel diode D2.Specifically, the cathodic electricity of the first free-wheel diode D1 of each free-wheel diode group is connected to DC power supply V
dCanode, the negative electrode of the second free-wheel diode D2 is then electrically connected on the anode of the first free-wheel diode D1, and its anode is connected to DC power supply V
dCnegative terminal.
This two damping capacitor Cd is connected to central point N and this DC power supply V of this three-phase coil Lr, Lt, Ls
dCanode between, and this central point N and this DC power supply V
dCnegative terminal between, it should be noted that, the concrete structure of described damping capacitor Cd and characteristic have been exposed in TaiWan, China and have announced M477033 patent, list herein by reference in the lump.And this electrolytic cell Va and this DC power supply V
dCparallel connection, the i.e. anode of this electrolytic cell Va and this DC power supply V
dCanode connect, the negative terminal of this electrolytic cell Va and this DC power supply V
dCnegative terminal connect.In the present embodiment, DC power supply V
dCbe a storage battery, the electric energy being therefore stored in electrolytic cell Va can recharge to this DC power supply V
dC.
Consult Fig. 1 and Fig. 4, this DC Brushless Motor 1 comprises rotor 11, stator 12, Δ type three-phase coil 13, and one drive circuit 2 (see Fig. 3).Rotor 11 can rotate around stator 12, and Δ type three-phase coil 13 is arranged on stator 12, and adopts the coiling of Δ type, and the headtotail of its three-phase coil Lu, Lv, Lw and be formed with three contacts U, V, W.
Again as shown in Figure 3, this drive circuit 2 can drive this DC Brushless Motor 1 and with a DC power supply V
dCelectric coupling, and comprise three and this DC power supply V
dCbrachium pontis (for convenience of description, hereinafter referred to as U phase brachium pontis, V phase brachium pontis and W phase brachium pontis) in parallel and six damping capacitor Cd.Wherein each brachium pontis has two free-wheel diode D, and three contacts U, V, W of this three-phase coil Lu, Lv, Lw are distinctly connected to corresponding respectively between this brachium pontis.And described damping capacitor Cd correspondence out of the ordinary is connected to central contact Un, Vn, Wn and the DC power supply V of each phase coil Lu, Lv, Lw
dCanode between, and central contact Un, Vn, Wn and DC power supply V
dCnegative terminal between.It should be noted that, the concrete structure of this DC Brushless Motor 1 and execution mode have been exposed in TaiWan, China and have announced M465724 patent, list herein by reference in the lump.
The function mode of the present embodiment dynamic inductance device and three-phase direct-current brushless motor is below described.
Consult Fig. 1 and Fig. 5, when drive circuit 2 is within a basic cycle, via U phase brachium pontis and V phase brachium pontis excitatory to U phase coil time, the rotor 11 producing magnetic force moving DC Brushless Motor 1 operates by U phase coil.Rotor 11 drives the rotor 32 of this dynamic inductance device 3 to rotate by rotating shaft 5 simultaneously.
Consult Fig. 1 and Fig. 6, in the present embodiment, because the rotor 32 of dynamic inductance device 3 is provided with magnet 35, and three-phase coil Lr, Lt, the Ls (see Fig. 2) on stator 31 is set around corresponding iron core 34 respectively; Therefore, when the rotor 32 of dynamic inductance device 3 rotates relative to stator 31, three-phase coil Lr, Lt, Ls generation current can be made, such as coil Lr generation current, its contact R is positive pole and central point N is negative pole, and coil Lt generation current, its central point N is positive pole and contact T is negative pole.Fig. 7 is consulted in collocation, and the electric current of its coil Lr can via the first free-wheel diode D1 of R phase free-wheel diode group, to being connected to DC power supply V
dCanode and central point N between this damping capacitor Cd charge, and the electric current of coil Lt can via the second free-wheel diode D2 of T-phase free-wheel diode group, to being connected to central point N and DC power supply V
dCnegative terminal between this damping capacitor Cd charge, and described damping capacitor Cd can first charge (because the voltage quasi position of now electrolytic cell Va is lower than DC power supply V to this electrolytic cell Va
dC), until the voltage quasi position of electrolytic cell Va is higher than DC power supply V
dCtime, electrolytic cell Va is namely to this DC power supply V
dCcharging.
Then, as shown in Figure 7, terminate when the basic cycle of this drive circuit 2, drive circuit 2 stops the moment excitatory to U phase coil, and U phase coil can produce back electromotive force Vu1, Vu2 and charge to the damping capacitor Cd be located in drive circuit 2 via U phase brachium pontis and V phase brachium pontis respectively.
But, above-mentioned back electromotive force to produce and the voltage potential be stored in the damping capacitor Cd of drive circuit 2 is usually less than DC power supply V
dC, therefore the electric energy stored wherein cannot recharge to DC power supply V by damping capacitor Cd smoothly
dC, but, because the described damping capacitor Cd of the dynamic antivibration circuit 4 of the present embodiment is in parallel with the damping capacitor Cd of drive circuit 2, and dynamic antivibration circuit 4 is in start process, and the voltage potential of described damping capacitor Cd wherein can be made to continue higher than DC power supply V
dC, and the voltage potential of the damping capacitor Cd of drive circuit 2 is also promoted to equipotential same with it, the electric power stored by described damping capacitor Cd of drive circuit 2 can be recharged smoothly to this DC power supply V
dC, to help power saving and by electric energy recycling.It should be noted that, the electric current that the back electromotive force of drive circuit 2 generation is formed is the alternating current of high frequency, and the electric current that dynamic antivibration circuit 4 produces is the alternating current of low frequency, namely above-mentioned alternating current can be exchanged into direct current by the effect of described damping capacitor Cd and electrolytic cell Va, and cannot inverse conversion, situation like this is damping effect of the present utility model.In addition, by the energy theorem of inductor:
(E: inductor storage power, L: inductance value, I: current value) is known, when dynamic inductance device 3 generation current, current value I can be made to increase, and then causing inductance value L to decline, namely the change of inductance value L illustrates that the dynamic inductance device 3 of the present embodiment is for a kind of " dynamic antivibration inductance ", therefore, although it constructs similar generator, the such as structure of three-phase direct-current brushless motor, but not use as generator in the present embodiment, therefore can not form extra load.
Be noted that especially, the present embodiment can be applicable to electronic vehicle-carried, such as, on electric motor car, namely this DC Brushless Motor 1 uses as general CD-ROM drive motor, this dynamic inductance device 3 then can be arranged at the place of wheel shaft, thus, when DC Brushless Motor 1 orders about wheel shaft rotation, the rotor 32 of this dynamic inductance device 3 also can and then rotate, and recharges the electric energy stored by the described damping capacitor Cd of dynamic antivibration circuit 4 and the described damping capacitor Cd of this drive circuit 2 to DC power supply V smoothly
dC, the storage battery of such as electric motor car, to help the endurance increasing electric motor car.
It is worth mentioning that, the back electromotive force of drive circuit 2 generation of this DC Brushless Motor 1 provides voltage, and this dynamic inductance device 3 provides electric current, by being multiplied of voltage and electric current, namely significantly can promote electrical power, and then make electric motor car produce stronger handling.
In sum, DC Brushless Motor 1 is charged to described damping capacitor Cd because the back electromotive force of the interchange kenel produced by three-phase coil Lu, Lv, Lw can follow discharge path that free-wheel diode D formed and is released energy, make the unlikely generation high temperature of drive circuit 2, and make DC power supply V
dCreason does not suffer high temperature and affects its useful life.Moreover, promoted the current potential of the described damping capacitor Cd of this drive circuit 2 by the described damping capacitor Cd of the dynamic antivibration circuit 4 of this dynamic inductance device 3, the described damping capacitor Cd of this drive circuit 2 can be recharged smoothly to this DC power supply V
dC, effectively reclaim electric energy to help power saving, therefore really can reach the object of the utility model.
Only as described above, be only embodiment of the present utility model, when can not limit the scope of the utility model enforcement with this, namely the simple equivalence change generally done according to the utility model claims and patent specification content with modify, all still belong in scope that the utility model patent contains.
Claims (5)
1. there is a dynamic inductance device for damping function, it is characterized in that: this dynamic inductance device comprises
One rotor;
One stator;
Three-phase coil, be arranged on this rotor and this stator one of them, and this three-phase coil is connected to each other and forms the Y type coiling with a central point and three contacts; And
One dynamic antivibration circuit, have three with the free-wheel diode group of a direct current power sources in parallel and two damping capacitors, each free-wheel diode group has one first free-wheel diode and one second free-wheel diode that are one another in series, between this first free-wheel diode that the contact of each phase coil is connected to this corresponding free-wheel diode group and this second free-wheel diode, this two damping capacitor is connected between this central point and anode of this DC power supply, and between this central point and negative terminal of this DC power supply, when this rotor is relative to this stator rotation, this three-phase coil generation current can be made and via first free-wheel diode of this wherein free-wheel diode group, this damping capacitor be connected between the anode of this DC power supply and this central point is charged, and via the second free-wheel diode of this another free-wheel diode group, to this damping capacitor charging be connected between this central point and negative terminal of this DC power supply, and by described damping capacitor by store electric power recharging to this DC power supply.
2. there is the dynamic inductance device of damping function as claimed in claim 1, it is characterized in that: this dynamic inductance device with damping function also comprises at least three and is arranged on this rotor and this stator wherein another magnet, and this three-phase coil is set around three iron cores respectively, and the combination of each phase coil this iron core corresponding with it is a damping circuit.
3. there is the dynamic inductance device of damping function as claimed in claim 1, it is characterized in that: this DC power supply is a storage battery, this dynamic antivibration circuit also has an electrolytic cell in parallel with this storage battery, and the described damping capacitor of this dynamic antivibration circuit can first charge to this electrolytic cell, then by this electrolytic cell, this DC power supply is charged.
4. there is the dynamic inductance device of damping function as claimed in claim 1, it is characterized in that: the negative electrode of this first free-wheel diode of each free-wheel diode group of this dynamic antivibration circuit is connected to the anode of this DC power supply, the negative electrode of this second free-wheel diode is connected to the anode of this first free-wheel diode, and its anode is connected to the negative terminal of this DC power supply.
5. there is the dynamic inductance device of damping function as claimed in claim 2, it is characterized in that: this rotor is provided at the periphery of this stator and rotates around this stator, and described magnet is arranged at this rotor, and described damping circuit is then be arranged at this stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520497852.6U CN204794209U (en) | 2015-07-10 | 2015-07-10 | Dynamic inductance device with damping function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520497852.6U CN204794209U (en) | 2015-07-10 | 2015-07-10 | Dynamic inductance device with damping function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204794209U true CN204794209U (en) | 2015-11-18 |
Family
ID=54534192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520497852.6U Withdrawn - After Issue CN204794209U (en) | 2015-07-10 | 2015-07-10 | Dynamic inductance device with damping function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204794209U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329608A (en) * | 2015-07-10 | 2017-01-11 | 徐夫子 | Dynamic inductance device with damping function |
-
2015
- 2015-07-10 CN CN201520497852.6U patent/CN204794209U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329608A (en) * | 2015-07-10 | 2017-01-11 | 徐夫子 | Dynamic inductance device with damping function |
| CN106329608B (en) * | 2015-07-10 | 2018-11-23 | 徐夫子 | dynamic inductance device with damping function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151118 Effective date of abandoning: 20181123 |
|
| AV01 | Patent right actively abandoned |