CN105846623B - A kind of electromagnetism liquid-cooled retarder of bimorph transducer twin coil - Google Patents
A kind of electromagnetism liquid-cooled retarder of bimorph transducer twin coil Download PDFInfo
- Publication number
- CN105846623B CN105846623B CN201610320415.6A CN201610320415A CN105846623B CN 105846623 B CN105846623 B CN 105846623B CN 201610320415 A CN201610320415 A CN 201610320415A CN 105846623 B CN105846623 B CN 105846623B
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- Prior art keywords
- stator
- retarder
- coil
- rotor
- control system
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/04—Machines with one rotor and two stators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/02—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type
- H02K49/04—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
- H02K49/043—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type with a radial airgap
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
- Braking Arrangements (AREA)
Abstract
A kind of electromagnetism liquid-cooled retarder of bimorph transducer twin coil.Belong to Non-contact vehicle brake field.The characteristics of current vortex retarder is maximum is contactless braking, reaction is fast, low speed good braking effect, improve automobile brake perfrmance, the quick consumption of brake(-holder) block and tire because of caused by friction in traditional braking is avoided, brake oil is eliminated, avoids environmental pollution, the driving safety, comfort and economy of vehicle are substantially increased, the fatigue of driver is reduced, improves work efficiency, reduces and bring to a halt, so that driving more smooth.The present invention is used as a kind of auxiliary brake device for automobile, innovative uses disk rotor, bimorph transducer two coil configuration, install meter in coil, the structure that stator is rationally integrated with water channel effectively reduces the axial dimension of electromagnetic retarder, optimize cooling system, electromagnetic retarder heat fading phenomenon is inhibited, whole braking moment is significantly improved, improves braking effect.
Description
Technical field
The present invention relates to a kind of electromagnetism liquid-cooled retarders of bimorph transducer twin coil.Belong to Non-contact vehicle brake field.
Background technology
Retarder is a kind of safety aid of service brake, it rises on Braking to system of vehicle transmission component
To the harmful energy of consumption, the effect of Vehicle Speed is reduced.The basic principle of current vortex retarder is：Metal flat or cambered surface
When doing cutting magnetic induction line movement, air gap flux density generating period variation with the rotation of rotor, in stator surface and a depthkeeping
It will be generated in the range of degree and be vortexed potential, and generate vortex, the magnetic field which is formed interacts again with air-gap field, just produces
Braking moment is given birth to.The kinetic energy of vehicle is fallen by this medium reverts of magnetic field for thermal energy consumption, and then plays non-contact system of slowing down
Action is used.With vehicle drive security, the continuous improvement of comfort and environmental protection and energy saving requirement, vehicle has one to retarder
Fixed demand.The characteristics of current vortex retarder is maximum is contactless braking, and reaction is fast, and low speed good braking effect improves vapour
Vehicle braking ability avoids the quick consumption of brake(-holder) block and tire because of caused by friction in traditional braking, eliminates brake oil,
Environmental pollution is avoided, substantially increases the driving safety, comfort and economy of vehicle, the fatigue of driver is reduced, improves
Work efficiency, reduction are brought to a halt, so that driving more smooth.
Existing current vortex retarder structure is substantially all using air-cooled structure, and heat dissipation is difficult, and heat fading is serious.Existing electromagnetism
Liquid-cooled retarder axial dimension is bigger than normal, and when axially mounted size requires, smaller axial dimension, which becomes, restricts electromagnetic retarding
The bottleneck of device performance considerably reduces the braking moment of electromagnetic retarder.And the electromagnetism liquid-cooled retarder of bimorph transducer twin coil,
Performance parameter is closely related with radial dimension, can effectively reduce axial dimension, efficiently utilizes the overall space of retarder, makes electricity
Magnetic liquid-cooled retarder possesses higher braking moment under same volume.Compared with electric eddy current dynamometer, bimorph transducer twin coil
The design put in electromagnetism liquid-cooled retarder in twin coil group causes the whole outer shifting of stator vortex generating unit, in addition generally increases
Effective tooth is long, so as to which the braking moment of retarder entirety be greatly improved so that the limited space structure of retarder obtains
More fully utilize.Bimorph transducer dual coil electromagnetic liquid-cooled retarder is simple in structure simultaneously, and simplicity is replaced in installation, and flexibility is more
By force.
The content of the invention
The purpose of the present invention is break through the deficiency for having speed buffer structure, development of special retarder, innovative use pair
The structure design of stator twin coil group, provides that a kind of axial dimension is small, and simple in structure, simple installation, heat fading is small, the phase same sex
It can the small bimorph transducer dual coil electromagnetic liquid-cooled retarder of lower volume.
The scheme that the present invention solves above-mentioned technical problem is as follows：
A kind of bimorph transducer dual coil electromagnetic liquid-cooled retarder, it is characterised in that：The retarder include stationary part, rotor,
Magnet exciting coil group and control system；The stationary part includes left side stator, right side stator and intermediate connector；It is described
Magnet exciting coil group includes left side coil, right side coil；Left side coil, right side coil are located among stator, inside and outside the rotor
Two circle distribution tooth form slot structures；Wherein intermediate connector is un-conducted magnetic material, and left side stator is magnetic conduction material with right side stator, rotor
Material is process；Left side stator and right side stator are bolted respectively on vehicle frame or on stationary parts, in static shape
State, while be connected using bolt with connector, it is 0.5 millimeter to 1 millimeter to keep left side stator, right side stator and rotor clearance；
Transmission shaft is matched by the spline on spline and rotor, passing power, drives rotor rotation；Magnet exciting coil group concentrates coiling, and
It is separately fixed on the stator of both sides, coil relative stator is static, the perforate extraction wire at entity of the stator without water channel, and slow
Control system outside device is connected；The control system is connected by conducting wire with the magnet exciting coil group, controls power on/off, control
System processed can also change the size of magnet exciting coil group electric current；Control system is passed through direct current in the same direction to both sides magnet exciting coil group
When, magnetic field is generated, the left side between left side stator, right side stator and the parts of tooth of rotor and stationary part and rotor and the right side
Side air gap composition closed magnetic circuit.
The rotor portion is connected with transmission shaft, rotates synchronously, is formed simultaneously magnetic circuit, rotor disc type structure passes through coil
Upper and lower two-part tooth-shape structure does the movement of cutting magnetic induction line, and corresponding stator face surface layer is made to generate alternating magnetic field.
The stationary part is installed in the rack of system of vehicle transmission part, for installing coil, is formed magnetic circuit, is generated whirlpool
Stream, induced field by induced field and the interaction in former magnetic field, generate braking moment, and are used as integrated heat dissipation water simultaneously
Road.Both sides stator is connected by intermediate connector bolt, controls the relative gap between both sides stator and center roller.
Two groups of magnet exciting coils concentrate coiling, are individually fixed on the stator of both sides and pass through the fairlead on stator and draw
Go out, be connected with control module, when work is passed through same direction current, generates magnetic field, closed magnetic circuit is formed on stator and rotor.
The control module is connected by conducting wire with the coil, controls power on/off, and control module can change coil
The size of electric current, to achieve the purpose that control braking moment.
The retarder both sides stator uses permeability magnetic material with center roller part；Connector among stator is using non-magnetic
Material optimizes magnetic circuit, reduces leakage field.Both sides air gap between stator and rotor is kept for 0.5 millimeter to 1 millimeter.Coil group is powered
Afterwards, magnetic field is formed, stator, rotor and intermediate air gap form closed magnetic path in both sides.
The present invention balances the axial attraction between unilateral stator and rotor using the design of both sides stator and twin coil group
Power.It is connected simultaneously at the stator outer circle of both sides with connector, keeps the axial distance between the stator of both sides.
The design of water channel in time can be transmitted to the heat that current vortex on stator generates in liquid, and being conducted heat by convection current will
Heat takes retarder out of, inhibits electromagnetic retarder heat fading phenomenon, persistently keeps the excellent efficient braking ability of retarder.By water
Road is integrated together with stator, alleviates overall weight, contacts directly heat source, and cooling-down effect is notable.
The operation principle of bimorph transducer dual coil electromagnetic liquid-cooled retarder of the present invention is as follows：
During work, colluded by control module to two groups of coils to electricity, since coil is concentrated and is directly wound on stator,
Toroid can be formed, and magnetic circuit is an entirety.The magnetic line of force can separate on stator, be reached by air gap on rotor；With
The rotation of rotor, rotor opposite sides stator cutting magnetic induction line is generated on stator and is vortexed, vortex excitation induced field, with
Former magnetic field interaction, generates braking moment, which is allocated as vehicular transmission shaft, that is, rising by rotor joint
To the effect of non-contact brake.The current vortex of stator surface is converted into thermal energy, and heat transfer occurs on stator, during through sluice,
It is thermally conducted on liquid-solid contact face in liquid, then by liquid convection, takes heat out of retarder.Magnetic field on rotor is basic
Variation is not generated, does not generate current vortex, i.e., so that rotor does not generate heat.Control module can change the size of electric current in coil, can
It is continuously adjusted with realizing.If retarder need not be braked, control module stops power supply to coil, does not at this moment generate magnetic field, from
Braking moment is not generated in principle.
Compared with existing electromagnetic retarder, advantage of the present invention is as follows.
A kind of auxiliary brake device for automobile of present invention conduct, innovative use disk rotor, bimorph transducer two coil configuration,
Meter is installed in coil, the structure that stator is rationally integrated with water channel effectively reduces the axial dimension of electromagnetic retarder, optimizes scattered
Hot systems, it is suppressed that electromagnetic retarder heat fading phenomenon significantly improves whole braking moment.
The design of disk rotor and double-stator structure reduces axial dimension so that retarder may be mounted at axial smaller
Space in.Coil overhead in electric eddy current dynamometer is optimized for install meter in two groups of coils, makes full use of stator radial ruler
It is very little, in same volume and under ensureing to stablize magnetic circuit, will current vortex occur part it is whole it is outer move, the braking arm of force is increased, so as to carry
Braking effect is risen.The heating principle basic from retarder, carries out the rational design of liquid cooling system, that is, alleviates retarder
Total quality, and radiate to the full extent for retarder.Overall construction design after optimization, reduces magnetic loss, alleviates whole
Body weight maximumlly improves braking moment.These advantages cause this innovation of bimorph transducer dual coil electromagnetic liquid-cooled retarder
Invention occupies a tiny space in retarder.
In structure compared with existing most like product (electric eddy current dynamometer) therewith, advantage of the present invention is as follows.
The coil for being located at outmost turns in electric eddy current dynamometer is divided into two groups of coils by the present invention, moves down into stator middle part
Position.The structure put in this twin coil so that two circle size increase inside and outside the rotor on rotor where serrate slot structure distribution, this
The operating radius for increasing current vortex braking moment is equivalent to, braking moment is finally greatly improved, improves braking effect.
Description of the drawings
Fig. 1 is a kind of bimorph transducer dual coil electromagnetic liquid-cooled retarder principle schematic diagram of the present invention；
Fig. 2 is two circle tooth form slot structures, distribution inside and outside a kind of bimorph transducer dual coil electromagnetic liquid-cooled retarder rotor of the present invention
Schematic diagram.
In Fig. 1：1 control system, 2 right side stators, 3 stator connecting pieces, 4 left side stators, 5 right side coils, 6 left side coils, 7
Magnetic circuit, 8 rotors, 9 right side baffle rings, 10 left side baffle rings, 11 transmission shafts.
Fig. 3 rotor stereoscopic schematic diagrams.
Fig. 4 one sides stator stereoscopic schematic diagram.
Specific embodiment
The principle of the present invention and feature are further described below in conjunction with attached drawing.
As shown in Figure 1, bimorph transducer dual coil electromagnetic liquid-cooled retarder principle schematic, which includes stationary part,
Rotor portion, magnet exciting coil group, control system 1.The stationary part includes left side stator and right side stator and intermediate connection
Part；Magnet exciting coil group includes left side coil 6 and right side coil 5.Serrate slot is dug in two circle parts inside and outside disk rotor, is rotated in rotor
When make to generate alternating magnetic field on stator, structure is as shown in Figure 2.Wherein connector 3 be un-conducted magnetic material, left side stator 4 with
Right side stator 2, rotor 8 are process for permeability magnetic material.
Left side stator is bolted respectively with right side stator on vehicle frame or on stationary parts, is remained static,
It is connected simultaneously using bolt with 3 connectors, ensures the gap between stationary part and rotor portion as 0.5 millimeter to 1 millimeter, such as
Shown in Fig. 1.Transmission shaft 11 is matched by the spline on spline and rotor 8, passing power, drives rotor rotation.It is kept off by axis
The modes such as circle or the shaft shoulder, sleeve solve the problems, such as the axial jump of rotor.Magnet exciting coil group concentrates coiling, and is separately fixed at both sides
On stator, coil relative stator is static, the perforate extraction wire at entity of the stator without water channel, with the control system outside retarder
System 1 is connected.When retarder works, when control system 1 is passed through direct current in the same direction to magnet exciting coil group, magnetic field is generated, left side is fixed
Son and the gap composition closed magnetic circuit 7 between right side stator and center roller 8 and stator and rotor.Left side stator is determined with right side
Air gap flux density between son and rotor 8 is in cyclically-varying, and when transmission shaft 11 rotates, drive rotor 8 rotates, left side stator and the right side
Side stator will generate cyclically-varying in the magnetic field close to 8 part of rotor so that stationary part generates current vortex, and current vortex is suitable
In hot-wire coil, induced field is generated, with former magnetic field interaction, braking moment is generated, hinders the rotation of transmission shaft, absorption has
Evil energy, and this portion of energy is converted into thermal energy, it is consumed by heat transfer, convection current heat transfer, heat radiation by retarder.When not
When needing the retarder to work, control system cuts off the power supply to magnet exciting coil group, and retarder does not work, substantially not consumed energy.
Claims (1)
1. a kind of bimorph transducer dual coil electromagnetic liquid-cooled retarder, it is characterised in that：The retarder includes stationary part, and rotor is encouraged
Magnetic coil group and control system；The stationary part includes left side stator (4), right side stator (2) and intermediate connector
(3)；The magnet exciting coil group includes left side coil, right side coil；Left side coil, right side coil are located among stator, described turn
Two circle distribution tooth form slot structure inside and outside sub (8)；Wherein intermediate connector is un-conducted magnetic material, and left side stator and right side stator turn
Son is process for permeability magnetic material；Left side stator and right side stator are bolted respectively on vehicle frame or on stationary parts,
It remains static, while is connected using bolt with connector, keep left side stator, right side stator and rotor clearance as 0.5 milli
Rice is to 1 millimeter；Transmission shaft is matched by the spline on spline and rotor, passing power, drives rotor rotation；Magnet exciting coil group collection
Middle coiling, and being separately fixed on the stator of both sides, coil relative stator is static, at entity of the stator without water channel perforate extraction lead
Line is connected with the control system outside retarder；The control system is connected by conducting wire with the magnet exciting coil group, control
Power on/off, control system can also change the size of magnet exciting coil group electric current；Control system is passed through together to both sides magnet exciting coil group
During to direct current, magnetic field is generated, between left side stator, right side stator and the parts of tooth of rotor and stationary part and rotor
Left side and right side air gap composition closed magnetic circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610320415.6A CN105846623B (en) | 2016-05-15 | 2016-05-15 | A kind of electromagnetism liquid-cooled retarder of bimorph transducer twin coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610320415.6A CN105846623B (en) | 2016-05-15 | 2016-05-15 | A kind of electromagnetism liquid-cooled retarder of bimorph transducer twin coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105846623A CN105846623A (en) | 2016-08-10 |
| CN105846623B true CN105846623B (en) | 2018-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610320415.6A Expired - Fee Related CN105846623B (en) | 2016-05-15 | 2016-05-15 | A kind of electromagnetism liquid-cooled retarder of bimorph transducer twin coil |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451998A (en) * | 2016-09-20 | 2017-02-22 | 北京工业大学 | Middle-placed explosion-proof electromagnetic liquid-cooled retarder with built-in rotor structure |
| CN108775353B (en) * | 2018-07-01 | 2019-10-29 | 北京工业大学 | A kind of liquid that blade has current vortex function concurrently replies conjunction retarder by cable |
| CN110154724A (en) * | 2018-12-29 | 2019-08-23 | 吉林东光奥威汽车制动系统有限公司 | A kind of new-energy automobile kinetic energy switching brake device |
| CN110798047A (en) * | 2019-11-28 | 2020-02-14 | 北京工业大学 | Internal cooling type eddy current brake device with double coils for vehicle |
| CN111682661B (en) * | 2020-06-08 | 2021-12-24 | 齐鲁工业大学 | Disk type motor based on dovetail slot wedge cooling system |
| CN114412592A (en) * | 2022-01-20 | 2022-04-29 | 吉林电力股份有限公司 | Auxiliary braking device and auxiliary braking method for steam turbine |
| CN114629326B (en) * | 2022-04-13 | 2024-03-15 | 中国北方车辆研究所 | Eddy current retarder excited by tooth-shaped coil |
| CN115126819B (en) * | 2022-06-19 | 2023-12-15 | 北京工业大学 | Armored vehicle-oriented light-weight rotor multi-mode electromagnetic suspension damper |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6049149A (en) * | 1999-03-23 | 2000-04-11 | Lin; Shou-Mei | Brushless DC motor having opposed pairs of axial magnetic field type permanent magnets and control system therefor |
| CN2908230Y (en) * | 2006-12-05 | 2007-06-06 | 合肥安束汽车电子有限公司 | Electromagnetic speed retarder for automobile |
| CN101934738A (en) * | 2010-10-25 | 2011-01-05 | 江苏大学 | Double-rotor disc self-excited retarder and control method thereof |
-
2016
- 2016-05-15 CN CN201610320415.6A patent/CN105846623B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6049149A (en) * | 1999-03-23 | 2000-04-11 | Lin; Shou-Mei | Brushless DC motor having opposed pairs of axial magnetic field type permanent magnets and control system therefor |
| CN2908230Y (en) * | 2006-12-05 | 2007-06-06 | 合肥安束汽车电子有限公司 | Electromagnetic speed retarder for automobile |
| CN101934738A (en) * | 2010-10-25 | 2011-01-05 | 江苏大学 | Double-rotor disc self-excited retarder and control method thereof |
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| Publication number | Publication date |
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| CN105846623A (en) | 2016-08-10 |
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Granted publication date: 20180601 Termination date: 20210515 |