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An electromagnetic liquid-cooled retarder with double stators and double coils

A double-coil, retarder technology, applied in the direction of electric brakes/clutches, electrical components, electromechanical devices, etc., can solve problems such as heat dissipation difficulties and reduce the braking torque of electromagnetic retarders, so as to reduce the overall quality and improve braking performance. The effect of dynamic torque and overall weight reduction

Inactive Publication Date: 2018-06-01
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing eddy current retarder structure basically adopts air-cooled structure, which makes it difficult to dissipate heat and cause serious thermal degradation
The axial size of the existing electromagnetic liquid-cooled retarder is too large. When the axial installation size is required, the smaller axial size becomes the bottleneck restricting the performance of the electromagnetic retarder, which greatly reduces the braking performance of the electromagnetic retarder. torque

Method used

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  • An electromagnetic liquid-cooled retarder with double stators and double coils
  • An electromagnetic liquid-cooled retarder with double stators and double coils
  • An electromagnetic liquid-cooled retarder with double stators and double coils

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Embodiment Construction

[0026] The principles and features of the present invention will be further described below in conjunction with the accompanying drawings.

[0027] Such as figure 1 Shown is a schematic diagram of the principle of a double-stator double-coil electromagnetic liquid-cooled retarder. The retarder includes a stator part, a rotor part, an excitation coil group, and a control system 1 . The stator part includes a left stator and a right stator, and an intermediate connector; the excitation coil set includes a left coil 6 and a right coil 5 . The inner and outer rings of the disc rotor are partly dug with tooth-shaped grooves, and when the rotor rotates, an alternating magnetic field is generated on the stator. Its structure is as follows: figure 2 shown. The connector 3 is made of non-magnetic material, and the left stator 4, right stator 2, and rotor 8 are processed from magnetic materials.

[0028] The left stator and the right stator are respectively bolted to the vehicle fra...

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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 [0001] The invention relates to an electromagnetic liquid-cooled retarder with double stators and double coils. The utility model belongs to the field of non-contact automobile braking. Background technique [0002] The retarder is a safety auxiliary device for driving brakes, which applies the braking force to the transmission parts of the vehicle to consume harmful energy and reduce the driving speed of the vehicle. The basic principle of the eddy current retarder is: when the metal plane or arc is cutting the magnetic induction line, the air gap flux density changes periodically with the rotation of the rotor, and an eddy current potential will be generated on the surface of the stator and within a certain depth range. , and generate eddy current, and the magnetic field formed by the eddy current interacts with the air gap magnetic field to generate braking torque. The kinetic energy of the vehicle is converted into heat energy and consumed through the m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K16/04H02K1/20H02K49/04
CPCH02K1/20H02K16/04H02K49/043
Inventor 李德胜田金山谢谋叶乐志
Owner BEIJING UNIV OF TECH
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