CN105846623A - Double stator and double wire coil electromagnetic liquid-cooled retarder - Google Patents
Double stator and double wire coil electromagnetic liquid-cooled retarder Download PDFInfo
- Publication number
- CN105846623A CN105846623A CN201610320415.6A CN201610320415A CN105846623A CN 105846623 A CN105846623 A CN 105846623A CN 201610320415 A CN201610320415 A CN 201610320415A CN 105846623 A CN105846623 A CN 105846623A
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- CN
- China
- Prior art keywords
- stator
- retarder
- rotor
- braking
- double
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
Abstract
A double stator and double wire coil electromagnetic liquid-cooled retarder is disclosed and belongs to the field of non-contact automobile braking. A most important characteristic of an eddy current retarder is non-contact braking which is high in responding performance and good in low speed braking effects, automobile braking performance is improved, fast brake pad and tire consumption caused due to friction in traditional braking processes can be prevented, braking noise can be eliminated, and environment pollution can be prevented; driving safety, comfort and economical performance of vehicles can be greatly improved; driver fatigue and emergent braking can be reduced; working efficiency can be improved; driving smoothness can be realized. The double stator and double wire coil electromagnetic liquid-cooled retarder works as an automobile auxiliary braking device; a disk rotor, a double stator and double wire coil structure, a design of arranged the wire coils at a center, and a structure of reasonably integrating stators and water channels are adopted in an innovative manner; axial dimensions of the electromagnetic retarder is effectively reduced, a heat radiating system is optimized, electromagnetic retarder heat fading phenomena are inhibited, overall braking torque is greatly improved, and braking effects are increased.
Description
Technical field
The present invention relates to the electromagnetism liquid-cooled retarder of a kind of bimorph transducer twin coil.Belong to Non-contact vehicle
Brake field.
Background technology
Retarder is the safety aid of a kind of service brake, it by Braking to system of vehicle transmission
On parts, play the harmful energy of consumption, reduce the effect of Vehicle Speed.Current vortex retarder
Ultimate principle is: metal flat or cambered surface are when doing cutting magnetic induction line motion, and air gap flux density is with rotor
Rotate and generating period change, eddy current electromotive force will be produced in the range of stator surface and certain depth,
And producing eddy current, the magnetic field that this eddy current is formed interacts with air-gap field again, just creates braking and turns
Square.The kinetic energy of vehicle is that thermal energy consumption is fallen by this medium reverts of magnetic field, and then plays noncontact and subtract
Speed braking action.Along with improving constantly that vehicle drive safety, comfortableness and environmental protection and energy saving require,
Vehicle has had certain demand to retarder.The feature of current vortex retarder maximum is contactless braking,
Reaction is fast, low speed good braking effect improves automobile brake perfrmance, it is to avoid because rubbing in traditional braking
Wipe and the brake(-holder) block that causes and the quick consumption of tire, eliminate brake oil, it is to avoid environmental pollution,
Substantially increase the driving safety of vehicle, comfortableness and economy, reduce the fatigue of driver, raising
Work efficiency, reduce bring to a halt, make to drive more smooth and easy.
Existing current vortex retarder structure the most all uses air-cooled structure, and heat radiation difficulty, heat fading is tight
Weight.Existing electromagnetism liquid-cooled retarder axial dimension is bigger than normal, when axially mounted size requires, less
Axial dimension become restriction electromagnetic retarder performance bottleneck, considerably reduce electromagnetic retarder
Braking moment.And the electromagnetism liquid-cooled retarder of bimorph transducer twin coil, performance parameter is close with radial dimension
Relevant, axial dimension can be effectively reduced, efficiently utilize the overall space of retarder, make electromagnetic liquid cold
Retarder has higher braking moment under same volume.Compared with electric eddy current dynamometer, double fixed
The design put in twin coil group in sub-dual coil electromagnetic liquid-cooled retarder makes stator eddy current generating unit whole
External shifting, adds effective tooth long the most generally, thus system that retarder overall is greatly improved
Kinetic moment so that the limited space structure of retarder is more fully utilized.Bimorph transducer is double simultaneously
Coil electromagnetism liquid-cooled retarder simple in construction, installs and changes simplicity, and motility is higher.
Summary of the invention
It is an object of the invention to break through the deficiency of existing speed buffer structure, development of special retarder, innovation
Property the structure design using bimorph transducer twin coil group, it is provided that a kind of axial dimension is little, simple in construction,
Simple installation, heat fading is little, the bimorph transducer dual coil electromagnetic liquid-cooled retarder that same performance lower volume is little.
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: this retarder includes stator
Part, rotor, magnet exciting coil group and control system；Described stationary part includes left side stator, the right side
Side stator, and intermediate connector；Described magnet exciting coil group includes left side coil, right side coil；Left
Lateral coil, right side coil are positioned in the middle of stator, two circle distribution serrate slot structure inside and outside described rotor；
Wherein intermediate connector is non-magnet_conductible material, and left side stator and right side stator, rotor are that permeability magnetic material adds
Work forms；Left side stator is connected on vehicle frame or on stationary parts with right side stator bolt respectively,
Remain static, use bolt to be connected with connector simultaneously, stator on the left of holding, right side stator and
Rotor clearance is 0.5 millimeter to 1 millimeter；Power transmission shaft is matched with the spline on rotor by spline, passes
Graduating power, rotor driven rotates；Magnet exciting coil group concentrates coiling, and is separately fixed on the stator of both sides,
Coil relative stator is static, draws outside wire, with retarder without perforate at the entity of water channel at stator
Control system be connected；Described control system is connected with described magnet exciting coil group by wire, controls
Power on/off, control system also is able to change the size of magnet exciting coil group electric current；Control system is encouraged to both sides
Magnetic coil group be passed through in the same direction unidirectional current time, produce magnetic field, the tooth of left side stator, right side stator and rotor
Left side between shape part and stationary part and rotor and right side air gap composition closed magnetic circuit.
Described rotor portion is connected with power transmission shaft, synchronous axial system, concurrently forms magnetic circuit, and rotor disc type is tied
Structure, is done the motion of cutting magnetic induction line, makes corresponding stator by the upper and lower two-part tooth-shape structure of coil
Top layer, face produces alternating magnetic field.
Described stationary part is installed in the frame of system of vehicle transmission part, is used for installing coil, forms magnetic
Road, produces eddy current, induced field, by the interaction of induced field Yu former magnetic field, produces braking
Moment, and it is used simultaneously as integrated heat dissipation water channel.Both sides stator is connected by intermediate connector bolt, control
Relative gap between both sides processed stator and center roller.
Described two groups of magnet exciting coils concentrate coiling, are individually fixed on the stator of both sides and by stator
Fairlead is drawn, and is connected with control module, is passed through same direction current during work, produces magnetic field, at stator
With formation closed magnetic circuit on rotor.
Described control module is connected with described coil by wire, controls power on/off, and control module can
To change the size of coil current, to reach to control the purpose of braking moment.
This retarder both sides stator uses permeability magnetic material with center roller part；Connector in the middle of stator
Use non-magnet material, optimize magnetic circuit, reduce leakage field.Both sides air gap between stator and rotor keeps
0.5 millimeter to 1 millimeter.After coil groups energising, form magnetic field, at both sides stator, rotor and middle gas
Gap forms closed magnetic path.
The present invention uses both sides stator and the design of twin coil group, between the unilateral stator of balance and rotor
Axial captivation.Connect with connector at both sides stator cylindrical simultaneously, keep between the stator of both sides
Axial distance.
The heat being designed to current vortex on stator to produce of water channel is transmitted in liquid in time, passes through
Heat is taken out of retarder by convection heat transfer' heat-transfer by convection, suppresses electromagnetic retarder heat fading phenomenon, persistently keeps slow
The excellent efficient braking ability of device.Water route is integrated together with stator, alleviates overall weight, directly
Contact thermal source, 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, collude to electricity by control module to two groups of coils, due to coil concentrate and directly around
System, on stator, i.e. can form toroid, and magnetic circuit is an entirety.The magnetic line of force is meeting on stator
Separately, arrive on rotor through air gap；Along with the rotation of rotor, rotor opposite sides stator cutting magnetic
Sense line, produces eddy current, vortex excitation induced field on stator, with former magnetic field interaction, produces
Braking moment, this braking moment is allocated as vehicular transmission shaft by rotor joint, i.e. plays non-
The effect of contact braking.The current vortex of stator surface is converted into heat energy, and conduction of heat occurs on stator,
When sluice, liquid-solid contact face is thermally conducted in liquid, then by liquid convection, by heat
Take retarder out of.Magnetic field on rotor does not the most produce change, does not produce current vortex, i.e. makes rotor
Do not generate heat.Control module can change the size of electric current in coil, it is possible to achieve continuously adjusts.If it is slow
When speed device need not braking, coil is stopped power supply by control module, does not the most produce magnetic field, from principle
On do not produce braking moment.
Compared with existing electromagnetic retarder, advantage of the present invention is as follows.
The present invention is as a kind of auxiliary brake device for automobile, the employing disk rotor of novelty, bimorph transducer
Two coil configuration, installs meter in coil, the structure that stator is the most integrated with water channel effectively reduces electricity
The axial dimension of magnetic retarder, optimizes cooling system, it is suppressed that electromagnetic retarder heat fading phenomenon,
Significantly improve the braking moment of entirety.
Disk rotor decreases axial dimension with the design of double-stator structure so that retarder can be installed
In the least space.It is optimized for the coil overhead in electric eddy current dynamometer in two groups of coils putting
Design, makes full use of stator radial dimension, stablizes under magnetic circuit, by current vortex in same volume guarantee
There is the overall outer shifting of part, increase the braking arm of force, thus improve braking effect.From retarder base
This heating principle sets out, and carries out the appropriate design of liquid cooling system, i.e. alleviates retarder total quality,
Dispel the heat for retarder the most to the full extent.Overall construction design after optimization, decreases magnetic loss, subtracts
Light overall weight, maximized improves braking moment.These advantages make bimorph transducer twin coil electricity
This innovation of magnetic liquid-cooled retarder occupies a tiny space in retarder.
Structurally compared with the most most like existing product (electric eddy current dynamometer), the present invention is excellent
Point is as follows.
The coil being positioned at outmost turns in electric eddy current dynamometer is divided into two groups of coils by the present invention, and it is fixed to move down into
Sub-middle part.The structure put in this twin coil so that serrate slot structure distribution place on rotor
Inside and outside rotor, two circle sizes increase, this operating radius being equivalent to increase current vortex braking moment,
Braking moment is greatly improved eventually, improves braking effect.
Accompanying drawing explanation
Fig. 1 is one bimorph transducer dual coil electromagnetic liquid-cooled retarder structural principle schematic diagram of the present invention；
Fig. 2 is two circle serrate slot inside and outside one bimorph transducer dual coil electromagnetic liquid-cooled retarder rotor of the present invention
Structure, distribution schematic diagram.
In Fig. 1: 1 control system, stator on the right side of in the of 2,3 stator connecting pieces, stator on the left of in the of 4, on the right side of in the of 5
Coil, coil on the left of in the of 6,7 magnetic circuits, 8 rotors, back-up ring on the right side of in the of 9, back-up ring on the left of in the of 10,11 power transmission shafts.
Fig. 3 rotor schematic perspective view.
Fig. 4 side stator schematic perspective view.
Detailed description of the invention
Below in conjunction with accompanying drawing, principle and the feature of the present invention are further described.
As it is shown in figure 1, bimorph transducer dual coil electromagnetic liquid-cooled retarder principle schematic, this retarder bag
Include stationary part, rotor portion, magnet exciting coil group, control system 1.Described stationary part includes left side
Stator and right side stator, and intermediate connector；Magnet exciting coil group includes left side coil 6 and right-hand line
Circle 5.Inside and outside disk rotor, two circle parts dig serrate slot, make to produce on stator alternation magnetic when rotor rotates
, its structure is as shown in Figure 2.Wherein connector 3 is non-magnet_conductible material, and left side stator 4 is with right
Side stator 2, rotor 8 process for permeability magnetic material.
Left side stator is connected on vehicle frame or on stationary parts with right side stator bolt respectively, is in
Resting state, uses bolt and 3 connectors to connect, it is ensured that between stationary part and rotor portion simultaneously
Gap be 0.5 millimeter to 1 millimeter, as shown in Figure 1.Power transmission shaft 11 is by spline and rotor 8
Spline match, transmit power, rotor driven rotate.By shaft block ring or the side such as the shaft shoulder, sleeve
Formula solves the axial jump problem of rotor.Magnet exciting coil group concentrates coiling, and it is fixed to be separately fixed at both sides
On son, coil relative stator is static, draws wire at stator without perforate at the entity of water channel, with slowly
Control system 1 outside device is connected.When retarder works, control system 1 is led to magnet exciting coil group
Enter in the same direction unidirectional current time, produce magnetic field, left side stator and right side stator and center roller 8 and stator
And the space composition closed magnetic circuit 7 between rotor.Gas between left side stator and right side stator and rotor 8
Gap magnetic is close in cyclically-varying, and when power transmission shaft 11 rotates, and rotor driven 8 rotates, left side stator is with right
Side stator will produce cyclically-varying in the magnetic field near rotor 8 part so that stationary part produces electricity
Eddy current, current vortex is equivalent to hot-wire coil, produces induced field, with former magnetic field interaction, produces
Braking moment, hinders the rotation of power transmission shaft, absorbs harmful energy, and this portion of energy is converted into heat
Can, consumed by retarder by conduction of heat, convection heat transfer' heat-transfer by convection, heat radiation.When need not retarder work
When making, control system cuts off the power supply to magnet exciting coil group, and retarder does not works, and does not the most consume energy
Amount.
Claims (1)
1. a bimorph transducer dual coil electromagnetic liquid-cooled retarder, it is characterised in that: this retarder includes
Stationary part, rotor, magnet exciting coil group and control system；Described stationary part includes left side stator
(4), right side stator (2), and intermediate connector (3)；Described magnet exciting coil group includes left side line
Circle, right side coil；Left side coil, right side coil are positioned in the middle of stator, in described rotor (8)
Outer two circle distribution serrate slot structures；Wherein intermediate connector is non-magnet_conductible material, left side stator and right side
Stator, rotor are that permeability magnetic material processes；Left side stator is connected to car with right side stator bolt respectively
In frame or on stationary parts, remain static, use bolt to be connected with connector, guarantor simultaneously
Holding left side stator, right side stator is 0.5 millimeter to 1 millimeter with rotor clearance；Power transmission shaft passes through spline
Matching with the spline on rotor, transmit power, rotor driven rotates；Magnet exciting coil group concentrates coiling,
And be separately fixed on the stator of both sides, coil relative stator is static, at stator without opening at the entity of water channel
Wire is drawn in hole, is connected with the control system outside retarder；Described control system passes through wire and institute
Stating magnet exciting coil group to be connected, control power on/off, control system also is able to change magnet exciting coil group electric current
Size；Control system to both sides magnet exciting coil group be passed through in the same direction unidirectional current time, produce magnetic field, left side
Left side between stator, right side stator and the parts of tooth of rotor and stationary part and rotor 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 true CN105846623A (en) | 2016-08-10 |
| CN105846623B 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105846623B (en) |
Cited By (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 |
| CN108775353A (en) * | 2018-07-01 | 2018-11-09 | 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 |
| CN111682661A (en) * | 2020-06-08 | 2020-09-18 | 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 |
| CN114629326A (en) * | 2022-04-13 | 2022-06-14 | 中国北方车辆研究所 | Eddy current retarder excited by tooth-shaped coil |
| CN115126819A (en) * | 2022-06-19 | 2022-09-30 | 北京工业大学 | Armored vehicle-oriented lightweight rotor multi-mode electromagnetic suspension shock absorber |
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| 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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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 |
Cited By (11)
| 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 |
| CN108775353A (en) * | 2018-07-01 | 2018-11-09 | 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 |
| CN111682661A (en) * | 2020-06-08 | 2020-09-18 | 齐鲁工业大学 | Disk type motor based on dovetail slot wedge cooling system |
| 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 |
| CN114629326A (en) * | 2022-04-13 | 2022-06-14 | 中国北方车辆研究所 | Eddy current retarder excited by tooth-shaped coil |
| 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 |
| CN115126819A (en) * | 2022-06-19 | 2022-09-30 | 北京工业大学 | Armored vehicle-oriented lightweight rotor multi-mode electromagnetic suspension shock absorber |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN105846623B (en) | 2018-06-01 |
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