CN209642517U - A kind of compound rectifier excitation component, vehicle-mounted permanent magnet synchronous motor and vehicle-mounted eddy-current brake - Google Patents
A kind of compound rectifier excitation component, vehicle-mounted permanent magnet synchronous motor and vehicle-mounted eddy-current brake Download PDFInfo
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- CN209642517U CN209642517U CN201920179661.3U CN201920179661U CN209642517U CN 209642517 U CN209642517 U CN 209642517U CN 201920179661 U CN201920179661 U CN 201920179661U CN 209642517 U CN209642517 U CN 209642517U
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Abstract
The utility model provides a kind of compound rectifier excitation component, vehicle-mounted permanent magnet synchronous motor and vehicle-mounted eddy-current brake, it include: supporting member, according to the specific regularly arranged permanent magnetic steel in the supporting member, the magnet exciting coil being centered around around each permanent magnetic steel respectively；Wherein, the winding direction of the magnet exciting coil is vertical with the magnetizing direction of corresponding permanent magnetic steel, and the magnetic direction by controlling magnet exciting coil realizes enhancing or decrease to the magnetic field of permanent magnetic steel.The compound rectifier excitation component of the utility model under the vehicle-mounted operating condition of linear motion, solves the problems, such as that magnet is installed to car body difficulty and eddy-current brake section tablet flux density is inadequate by electromagnetic coil in such a way that tradition HALBALCH permanent magnet array combines.
Description
Technical field
The utility model relates to high-speed transit delivery technology field more particularly to a kind of compound rectifier excitation components, vehicle-mounted permanent magnetism
Synchronous motor and vehicle-mounted eddy-current brake.
Background technique
Pursuit with social transportation industry to speed, it is straight to drive technology as high-speed transit delivery technology by social universal
Concern.Permanent-magnetism linear motor is as the straight typical case for driving technology, using more and more extensive in field of traffic.Currently, being mostly used forever
Secondary of the magnet as vehicle-mounted synchronous motor, provides excitation field.Wherein, the permanent magnet of HALBACH array structure production is because of it
Become the main composition mode of vehicle-mounted permanent magnet synchronous motor magnetic pole with stronger poly- magnetic energy power and unilateral beam magnetic energy power.
HALBACH permanent magnet array magnet can be used as the magnetic pole excitation magnet of linear synchronous motor, while be also vehicle-mounted eddy-current brake
Field magnet.
Traditional HALBACH permanent magnet array section is as shown in Figure 1.Wherein d1For single permanent magnetic steel cross-sectional length, d2For list
A permanent magnetic steel cross-sectional width.Arrow is permanent magnetic steel magnetizing direction in figure.The antipodal length of magnetizing direction is HALBACH
The pole span τ of permanent magnet array magnetic.HALBACH permanent magnet array carries out magnetically confined, the field waveform of formation such as Fig. 2 institute in magnet side
Show.This sinusoidal waveform can be supplied to the excitation field of linear synchronous motor and the excitation field of eddy-current brake.
But the current vehicle-mounted general volume of HALBACH permanent magnet array is larger, after magnet steel production fits into structural member
Always ferromagnetism is had, and train is generally made of metalwork, unavoidably by magnetic conductive material.By HALBACH permanent magnet array magnetic
When body is installed into train corresponding position, installation difficulty can be increased because permanent magnet and magnetic material occur attracting unavoidably.Simultaneously
If permanent magnet array has been adsorbed on ferromagnetic material during the installation process, brittle substance when due to magnet steel can only be demagnetized by heating,
Magnet is removed, simultaneously irreversible damage also has occurred in HALBACH permanent magnet array magnet.
In addition, when train carries out eddy-current brake using HALBACH permanent magnet array and tablet effect, in order to improve braking
Power, designer often reduce the gap between permanent magnet array and tablet, improve the flux density size on tablet.But it reduces
The two gap will lead to betides the case where tablet is hit when vehicle-mounted magnet due to the deflection of car body, improves train and is making
The danger coefficient of dynamic section.
Utility model content
Based on the above issues, the utility model is using providing a kind of compound rectifier excitation component, vehicle-mounted permanent magnet synchronous motor and vehicle
Eddy-current brake is carried, by electromagnetic coil in such a way that tradition HALBALCH permanent magnet array combines, in the vehicle-mounted work of linear motion
Under condition, solve the problems, such as that magnet is installed to car body difficulty and eddy-current brake section tablet magnetic density is inadequate.
To solve the above problems, the utility model provides a kind of compound rectifier excitation component, comprising:
Supporting member is centered around each respectively according to the specific regularly arranged permanent magnetic steel in the supporting member
Magnet exciting coil around permanent magnetic steel；
Wherein, the coil winding direction of the magnet exciting coil is vertical with the magnetizing direction of corresponding permanent magnetic steel, passes through control
The magnetic direction of magnet exciting coil realizes the enhancing or decrease in the magnetic field of permanent magnetic steel.
Wherein, the excitation composite construction further includes coil circuit, and the coil circuit specifically includes:
Power supply, main control unit, magnetic field control unit, what the main control unit was used to control magnet exciting coil connects through and off
It opens, the magnetic field control unit is used to control the magnetic direction of magnet exciting coil.
Wherein, it is connected in the coil circuit after the magnet exciting coil series connection of each permanent magnetic steel.
Wherein, the main control unit is contactor.
Wherein, the magnetic field control unit specifically includes:
First button, the second button, the first relay and the second relay；
Wherein, first button is connected with the coil of the normally-closed contact of second relay, first relay
Connect into the first button circuit, second button and the normally-closed contact of first relay, the line of second relay
Circle is serially connected in the second button circuit, is connected to power supply after first button circuit is in parallel with second button circuit；
The input terminal of first normally opened contact of first relay is connected to the power input, and output end is connected to
The input terminal of the first end of the magnet exciting coil, the second normally opened contact of first relay is connected to the magnet exciting coil
Second end, output end are connected to the power output end, and the input terminal of the first normally opened contact of second relay is connected to
The input terminal of first normally opened contact of first relay, output end are connected to the second end of the magnet exciting coil, and described
The input terminal of second normally opened contact of two relays is connected to the first end of the magnet exciting coil, and output end is connected to the power supply
Output end；
First button is also parallel with the third normally opened contact of the first relay, second button be parallel with second after
The third normally opened contact of electric appliance.
Wherein, the power supply DC power supply.
Wherein, the supporting member is made of non-magnetic metal material.
Wherein, the magnetic field strength of the magnet exciting coil is lower than the official report coercivity in the permanent magnetic steel.
The other side of the utility model provides a kind of vehicle-mounted permanent magnet synchronous motor, including above-mentioned compound rectifier excitation structure
Part.
Another aspect of the utility model provides a kind of vehicle-mounted eddy-current brake, including above-mentioned compound rectifier excitation component.
The utility model proposes compound rectifier excitation component, vehicle-mounted permanent magnet synchronous motor and vehicle-mounted eddy-current brake, to magnetic
When body is lifted, during installation is got on the bus, carry out electrical excitation using the mode of weakened field intensity, reduce magnet lifting or
The difficulty got on the bus is installed, while also avoiding adsorbing the tiny ferromagnetic material in periphery because permanent magnet itself is magnetic too strong.In addition, in magnetic
When body enters eddy-current brake section, electrical excitation is carried out using the mode for strengthening magnetic field strength, enhancing magnet is in inductive loop plate
Magnetic field strength induces bigger vortex to generate bigger brake force, improves car body integral stop ability, reduce braking away from
From.
Detailed description of the invention
Fig. 1 shows existing HALBACH permanent magnet array structural schematic diagram.
Fig. 2 shows the field waveform figures that existing HALBACH permanent magnet array structure generates.
Magnet cross section schematic diagram when Fig. 3 shows the magnetic field-intensification of the compound rectifier excitation component of the utility model.
Magnet cross section schematic diagram when Fig. 4 shows the field weakening of the compound rectifier excitation component of the utility model.
Fig. 5 shows the field coil circuit figure of the compound rectifier excitation component of the utility model.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
The compound rectifier excitation component of the utility model one embodiment specifically includes as shown in Figure 3 and Figure 4: supporting member 3,
According to the specific regularly arranged permanent magnetic steel 1 in supporting member 3, the excitation being centered around around each permanent magnetic steel 1 respectively
Coil 2；
Wherein, the coil winding direction of magnet exciting coil 2 is vertical with the magnetizing direction of corresponding permanent magnetic steel 1, is encouraged by control
The magnetic direction of magnetic coil 2 realizes the enhancing or decrease in the magnetic field of permanent magnetic steel 1.
The compound rectifier excitation component of the utility model embodiment has one since magnetizing direction is different between magnet steel and magnet steel
Fixed attraction or repulsive force, it is therefore desirable to which high-intensitive non-magnetic metalwork is spaced apart in adjacent magnet steel as support construction.
The compound rectifier excitation component of the utility model embodiment, by Fig. 3 coil step mode, the vehicle-mounted poly- magnetic energy power of magnet increases
By force, magnetic flux density enhances when comparison is without magnet exciting coil.By Fig. 4 coil step mode, the vehicle-mounted poly- magnetic reduced capability of magnet, comparison
Magnetic flux density weakens when no magnet exciting coil.It should be understood that being encouraged in the compound rectifier excitation component of the utility model embodiment
The magnetic field strength of magnetic coil is lower than the official report coercivity in permanent magnetic steel.
In one embodiment, magnetic field could be generated since magnet exciting coil needs to be powered, excitation composite construction also wraps
Coil circuit is included, which is arranged on the car body as mobile unit, it specifically includes:
Power supply, main control unit, magnetic field control unit, what wherein main control unit was used to control magnet exciting coil connects through and off
It opens, magnetic field control unit is used to control the magnetic direction of magnet exciting coil, and connects after the magnet exciting coil series connection of each permanent magnetic steel
It is connected in the coil circuit.
In a specific embodiment, as shown in figure 5, power supply DC power supply, main control unit are contactor KM, it is located at
In main circuit, for controlling switching on and off for magnet exciting coil.
Magnetic field control unit specifically includes the first button SB1, the second button SB2, the first relay KA1 and the second relay
KA2；Specifically, the coil series connection of the normally-closed contact of the first button SB1 and the second relay KA2, the first relay KA1
At the first button circuit, the second button SB2 connects company with the coil of the normally-closed contact of the first relay KA1, the second relay KA2
Be connected into the second button circuit, and the first button circuit it is in parallel with second button circuit after be connected to power supply.
Further, the input terminal of the first normally opened contact of the first relay KA1 is connected to power input, and output end connects
It is connected to the first end of magnet exciting coil, the input terminal of the second normally opened contact of the first relay KA1 is connected to the second of magnet exciting coil
End, output end are connected to power output end, and the input terminal of the first normally opened contact of the second relay KA2 is connected to the first relay
The input terminal of the first normally opened contact of KA1, output end are connected to the second end of magnet exciting coil, and the second of the second relay KA2 is often
The input terminal for opening contact is connected to the first end of magnet exciting coil, and output end is connected to the output end of power supply；
In addition, the first button SB1 is also parallel with the third normally opened contact of the first relay KA1, the second button SB2 is parallel with
The third normally opened contact of second relay KA2.
The first relay KA1 and the second relay KA2 in above-described embodiment are used but are not limited to electric current relay, other
The device that identical function may be implemented is equally applicable to the compound rectifier excitation component of the utility model embodiment.
In another embodiment of the utility model, a kind of vehicle-mounted permanent magnet synchronous motor is also provided, which may include
Above-mentioned compound rectifier excitation component, the magnetic pole excitation magnet as the motor.
In another embodiment, a kind of vehicle-mounted eddy-current brake is also provided, which also may include above-mentioned compound
Excitation component, the magnetic pole excitation magnet as the brake.
The utility model proposes compound rectifier excitation component, vehicle-mounted permanent magnet synchronous motor and vehicle-mounted eddy-current brake, to magnetic
When body is lifted, during installation is got on the bus, carry out electrical excitation using the mode of weakened field intensity, reduce magnet lifting or
The difficulty got on the bus is installed, while also avoiding adsorbing the tiny ferromagnetic material in periphery because permanent magnet itself is magnetic too strong.In addition, in magnetic
When body enters eddy-current brake section, electrical excitation is carried out using the mode for strengthening magnetic field strength, enhancing magnet is in inductive loop plate
Magnetic field strength induces bigger vortex to generate bigger brake force, improves car body integral stop ability, reduce braking away from
From.
Embodiment of above is merely to illustrate the utility model, and is not limitation of the utility model, related technology neck
The those of ordinary skill in domain, in the case where not departing from the spirit and scope of the utility model, can also make a variety of changes and
Modification, therefore all equivalent technical solutions also belong to the scope of the utility model, the scope of patent protection of the utility model is answered
It is defined by the claims.
Claims (10)
1. a kind of compound rectifier excitation component characterized by comprising
Supporting member is centered around each permanent magnetism according to the specific regularly arranged permanent magnetic steel in the supporting member respectively
Magnet exciting coil around magnet steel；
Wherein, the coil winding direction of the magnet exciting coil is vertical with the magnetizing direction of corresponding permanent magnetic steel, by controlling excitation
The magnetic direction of coil realizes the enhancing or decrease in the magnetic field of permanent magnetic steel.
2. compound rectifier excitation component as described in claim 1, which is characterized in that the excitation composite construction further includes coil electricity
Road, the coil circuit specifically include:
Power supply, main control unit, magnetic field control unit, the main control unit are used to control the connecting and disconnecting of magnet exciting coil,
The magnetic field control unit is used to control the magnetic direction of magnet exciting coil.
3. compound rectifier excitation component as claimed in claim 2, which is characterized in that connect after the magnet exciting coil series connection of each permanent magnetic steel
It is connected in the coil circuit.
4. compound rectifier excitation component as claimed in claim 2, which is characterized in that the main control unit is contactor.
5. compound rectifier excitation component as claimed in claim 2, which is characterized in that the magnetic field control unit specifically includes:
First button, the second button, the first relay and the second relay；
Wherein, the coil series connection of the normally-closed contact of first button and second relay, first relay
At the first button circuit, second button and the normally-closed contact of first relay, the coil string of second relay
Connection connects into the second button circuit, is connected to power supply after first button circuit is in parallel with second button circuit；
The input terminal of first normally opened contact of first relay is connected to the power input, and output end is connected to described
The input terminal of the first end of magnet exciting coil, the second normally opened contact of first relay is connected to the second of the magnet exciting coil
End, output end are connected to the power output end, and the input terminal of the first normally opened contact of second relay is connected to described
The input terminal of first normally opened contact of the first relay, output end are connected to the second end of the magnet exciting coil, described second after
The input terminal of second normally opened contact of electric appliance is connected to the first end of the magnet exciting coil, and output end is connected to the defeated of the power supply
Outlet；
First button is also parallel with the third normally opened contact of the first relay, and second button is parallel with the second relay
Third normally opened contact.
6. compound rectifier excitation component as claimed in claim 2, which is characterized in that the power supply DC power supply.
7. compound rectifier excitation component as described in claim 1, which is characterized in that the supporting member is by non-magnetic metal material system
At.
8. compound rectifier excitation component as described in claim 1, which is characterized in that the magnetic field strength of the magnet exciting coil is lower than described
Official report coercivity in permanent magnetic steel.
9. a kind of vehicle-mounted permanent magnet synchronous motor, which is characterized in that including the described in any item compound rectifier excitation structures of claim 1-8
Part.
10. a kind of vehicle-mounted eddy-current brake, which is characterized in that including the described in any item compound rectifier excitation components of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920179661.3U CN209642517U (en) | 2019-01-31 | 2019-01-31 | A kind of compound rectifier excitation component, vehicle-mounted permanent magnet synchronous motor and vehicle-mounted eddy-current brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920179661.3U CN209642517U (en) | 2019-01-31 | 2019-01-31 | A kind of compound rectifier excitation component, vehicle-mounted permanent magnet synchronous motor and vehicle-mounted eddy-current brake |
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| Publication Number | Publication Date |
|---|---|
| CN209642517U true CN209642517U (en) | 2019-11-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920179661.3U Active CN209642517U (en) | 2019-01-31 | 2019-01-31 | A kind of compound rectifier excitation component, vehicle-mounted permanent magnet synchronous motor and vehicle-mounted eddy-current brake |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109889004A (en) * | 2019-01-31 | 2019-06-14 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | A kind of compound rectifier excitation component |
-
2019
- 2019-01-31 CN CN201920179661.3U patent/CN209642517U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109889004A (en) * | 2019-01-31 | 2019-06-14 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | A kind of compound rectifier excitation component |
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