CN201264642Y - Steering device for automobile - Google Patents

Steering device for automobile Download PDF

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Publication number
CN201264642Y
CN201264642Y CNU2008200948822U CN200820094882U CN201264642Y CN 201264642 Y CN201264642 Y CN 201264642Y CN U2008200948822 U CNU2008200948822 U CN U2008200948822U CN 200820094882 U CN200820094882 U CN 200820094882U CN 201264642 Y CN201264642 Y CN 201264642Y
Authority
CN
China
Prior art keywords
motor
friction
magnetic clutch
output shaft
power supply
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.)
Expired - Lifetime
Application number
CNU2008200948822U
Other languages
Chinese (zh)
Inventor
付多智
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BYD Co Ltd
Original Assignee
BYD Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BYD Co Ltd filed Critical BYD Co Ltd
Priority to CNU2008200948822U priority Critical patent/CN201264642Y/en
Application granted granted Critical
Publication of CN201264642Y publication Critical patent/CN201264642Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model provides an steering apparatus which comprises a power supply, a motor, a magnetic clutch and an output shaft, wherein, the power supply supplies power to the motor; the magnetic clutch and the motor are in parallel connection in a power supply circuit of the motor; and the magnetic clutch is arranged between an motor shaft and the output shaft. The magnetic clutch comprises a first friction piece, a second friction piece and an electromagnet, wherein, the electromagnet is fixed at the front end cover of a motor casing of the motor; the first friction piece is installed at the motor shaft of the motor; and the second friction piece is installed on the output shaft. When the motor is energized, the magnetic clutch also works; a single power supply is not needed for the magnetic clutch; and the steering apparatus has the advantages of energy saving, convenient control, simple and reasonable structure, number reduction of mechanical and control parts, volume reduction, installation space saving and cost reduction.

Description

Auto steerer
Technical field
The present invention relates to a kind of auto steerer, particularly a kind of steering hardware that is used for pure electric automobile or hybrid vehicle.
Background technology
In the steering hardware of existing pure electric automobile or hybrid vehicle, a kind of scheme is to adopt electrical motor-power-transfer clutch-gearbox designs, power-transfer clutch wherein adopts mechanical type or hydraulic clutch, and present most of power-transfer clutch all has a hydraulic clutch wheel cylinder, with cut-off clutch, therefore whole steering hardware complex structure is bulky; Simultaneously, because the internal resistance instability of motor under low speed, output torque is also unstable, and therefore when vehicle launch, the moment of torsion that traditional mechanical type or hydraulic clutch transmit is also unstable, is difficult to control, flame-out easily and shake in the time of new hand starting vehicle.In addition, also have the mode that adopts magnetic clutch between motor and change speed gear box, but motor adopts different electric power systems with change speed gear box, can take more space, has wasted the energy simultaneously, the response of magnetic clutch is also rapid inadequately.
The utility model content
The utility model provides a kind of steering hardware, and is bulky to solve above-mentioned steering hardware, and energy utilization rate variance and magnetic clutch respond inadequately shortcoming rapidly.
According to steering hardware of the present utility model, comprise power supply, motor and magnetic clutch, described power supply are described motor power supply, described magnetic clutch and described motor parallel are connected in the feed circuit of described motor.
The utility model is in electrical power, and magnetic clutch is also worked together, does not need for magnetic clutch power supply to be set separately, energy savings is convenient to control, and the simple and reasonable quantity that has reduced machinery, control part, has reduced volume, save installing space, reduced cost.
Description of drawings
Fig. 1 is the constructional drawing according to the steering hardware of the utility model embodiment.
Fig. 2 is the circuit controling drawing according to the steering hardware of the utility model embodiment.
The specific embodiment
Below in conjunction with accompanying drawing the utility model embodiment is further described.
As depicted in figs. 1 and 2, this steering hardware comprises motor 1, output shaft 2 and magnetic clutch 3, described motor 1 also comprises motor shaft 4, described magnetic clutch 3 is arranged between described motor shaft 1 and the output shaft 2, described magnetic clutch 3 comprises first friction member 5, second friction member 6 and electromagnet 7, wherein said electromagnet 7 is fixed on the front end cover of electric machine casing 8 of described motor, described first friction member 5 is installed on the motor shaft 4 of described motor 1, described second friction member 6 is installed on the described output shaft 2, first friction member, 5 one sides have friction lining, so that cooperatively interact with second friction member 6, there is no particular limitation to first friction member 5, as long as first friction member 5 can by with the rubbing effect of second friction member 6, drive 6 stable motions of second friction member and get final product; Described electromagnet 7 is connected in parallel in the feed circuit of described motor 1 with magnetic clutch 3, the feed circuit of described motor comprise bonded assembly direct supply 11 and motor 1 successively, described magnetic clutch 3 is in parallel with motor 1, be that magnetic clutch 3 uses same power supply with motor 1, described power supply can adopt the 12V direct supply, when motor 1 begins the energising running, magnetic clutch 3 is also started working, electromagnet 7 in the magnetic clutch 3 has magnetic, second friction member 6 is under the magnetic field effect that electromagnet 7 produces, be adsorbed on first friction member 5, produce friction with it and along with this first friction member 5 rotates together, when power supply 11 cuts off the power supply, motor 1 shuts down, magnetic clutch 3 cuts off the power supply simultaneously, and electromagnet 7 loses magnetism, and first friction member 5 separates with second friction member 6.
In addition, in order to realize the purpose of this utility model better, on the branch road of magnetic clutch 3, also be in series with variable resistance 12.In the time of electric motor starting; the lead-in wire of electromagnet 7 is connected magnetic clutch 3 power supplys 11; the feed circuit of magnetic clutch 3 are connected; the resistance of 3 series connected variable resistances 12 of magnetic clutch is when diminishing greatly; electric current by magnetic clutch 3 correspondingly increases gradually; thereby the moment of torsion that magnetic clutch 3 is transmitted increases also so equably, and the variation of the load that protection motor shaft 4 and output shaft 2 are subjected to is more even, prevents that it is subjected to big impact and damages.
Described steering hardware also comprises elastic component, and described elastic component one end captive joint second friction member 6, the other end connect output shaft 2, the second friction members 6 and can be installed on the output shaft 2 by elastic component and butt flange 10; Concrete described elastic component can be a dish spring 9, captives joint with second friction member 6 in the outer end of this dish spring 9, and the inner then is fixed on the output shaft 2 by butt flange 10; When magnetic clutch 3 energisings, second friction member 6 is under the magnetic field effect that electromagnet 7 produces, be adsorbed on first friction member 5, produce friction with it and along with this first friction member 5 rotates together, at this moment, elastic deformation takes place in dish spring 9 under the effect of second friction member 6, and then drives butt flange 10 rotations, be that the moment of torsion that motor shaft 4 produces passes through first friction member 5, be delivered on the output shaft 4 by second friction member 6, dish spring 9, butt flange 10 successively; When magnetic clutch 3 outages, the magnetic field that electromagnet 7 produces disappears, second friction member 6 no longer is subjected to magnetic field suction, and at this moment, the elastic-restoring force that dish spring 9 produces resets second friction member 6, break away from effect with first friction member 5, therefore, the moment of torsion transmittance process of 4 pairs of output shafts 2 of motor shaft is ended, and output shaft 2 no longer is subjected to the influence of motor shaft 4, naturally stop operating, avoided of the impact of motor shaft 4 self rotor inertia output shaft 2.In addition, elastic component can also be retracing spring, described retracing spring one end is fixed on the output shaft 2, the other end is captiveed joint with second friction member 6, described second friction member 6 axially is slidably mounted on the described output shaft 2 along described output shaft, and second friction member 6 can be attracted and along the axial release of output shaft 2 under the effect of magnetic field, and when disappearing in magnetic field, described second friction member 6 can reset by retracing spring, can play the effect identical with dish spring 9.
To be example with the steering hardware in the electronlmobil below, the working process of the steering hardware that the utility model is provided be described in detail in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, in the steering hardware according to present embodiment, described motor shaft 4 and described output shaft 2 coaxial settings, the power supply 11 of described motor 1 and magnetic clutch 3 adopts vehicle-mounted 12V storage battery to get final product.
During automobile starting, power simultaneously to motor 1 and magnetic clutch 3 by motor power 11, motor 1 starts, and the motor shaft 4 of motor drives first friction member 5 that is installed on this motor shaft 4 and rotates together, at this moment, electromagnet 7 has magnetic, second friction member 6 according to the steering hardware of present embodiment is fixed on the output shaft 2 by dish spring 9 and butt flange 10, and therefore, second friction member 6 can be attracted under the effect of magnetic field, and when magnetic field disappeared, described second friction member 6 resetted by dish spring 9.So, when electromagnet 6 energisings produce magnetic field, after second friction member 6 is adsorbed under magnetic field acts on and produces friction with it on first friction member 5, along with first friction member 5 rotates together, at this moment, elastic deformation takes place in dish spring 9 under the effect of second friction member 6, and the moment of torsion on second friction member 6 is delivered on the output shaft 2 by butt flange 10.That is to say that the motor torque that motor shaft 4 produces is by first friction member 5, be passed to output shaft 2 by second friction member 6, dish spring 9 and butt flange 10 successively.Therefore, second friction member 6, elastic component 9 and butt flange 10 have cushioned output shaft 2, have reduced the suffered impact of when vehicle launch motor shaft 4 and output shaft 2.
Simultaneously, in order to realize the purpose of this utility model better, on the feed circuit of magnetic clutch 3, also be in series with variable resistance 12.In electric motor starting; the feed circuit of magnetic clutch 3 are connected; the resistance of magnetic clutch 3 series connected variable resistances 12 is from diminishing greatly; electric current by magnetic clutch 2 correspondingly increases gradually; thereby the moment of torsion that power-transfer clutch transmitted also so equably increases; the variation of the load that protection motor shaft 4 and output shaft 2 are subjected to is more even, prevents that it is subjected to big impact and sustains damage.
During brake, the power supply 11 of motor and magnetic clutch disconnects, the magnetic field that electromagnet 7 produces disappears, second friction member 6 no longer is subjected to the effect of magnetic field gravitation, at this moment, the elastic-restoring force that dish spring 9 produces resets second friction member 6, the effect of the disengaging and first friction member 5, and the moment of torsion transmittance process of 4 pairs of output shafts 2 of motor shaft is ended.
Therefore, when automobile brake, motor shaft 4 is rotated further a period of time under the rotor inertia with rotor self, and because the disengaging of second friction member 6 and first friction member 5, drive connection between motor shaft 4 and the output shaft 2 is ended, output shaft 2 no longer is subjected to the influence of motor shaft 4, stops operating naturally, thereby has avoided motor shaft 4 pairs of output shafts 2 to produce excessive impact even cause the damage of axle.

Claims (6)

1, a kind of auto steerer comprises power supply, and motor and magnetic clutch, described power supply are described motor power supply, and it is characterized in that: described magnetic clutch and described motor parallel are connected in the feed circuit of described motor.
2, steering hardware according to claim 1 is characterized in that: be in series with variable resistance on the branch road of described magnetic clutch.
3, steering hardware according to claim 1 and 2, it is characterized in that: comprise output shaft, described magnetic clutch is arranged between motor shaft and the output shaft, described magnetic clutch comprises first friction member, second friction member and electromagnet, wherein said electromagnet is fixed on the front end cover of electric machine casing of described motor, described first friction member is installed on the motor shaft of described motor, and described second friction member is installed on the described output shaft.
4, device according to claim 3 is characterized in that: described steering hardware also comprises elastic component, described elastic component one end captive joint second friction member, and the other end connects output shaft.
5, steering hardware according to claim 4 is characterized in that: described elastic component is connected with output shaft by butt flange.
6, steering hardware according to claim 5 is characterized in that: described elastic component is the dish spring.
CNU2008200948822U 2008-06-17 2008-06-17 Steering device for automobile Expired - Lifetime CN201264642Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200948822U CN201264642Y (en) 2008-06-17 2008-06-17 Steering device for automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200948822U CN201264642Y (en) 2008-06-17 2008-06-17 Steering device for automobile

Publications (1)

Publication Number Publication Date
CN201264642Y true CN201264642Y (en) 2009-07-01

Family

ID=40830999

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008200948822U Expired - Lifetime CN201264642Y (en) 2008-06-17 2008-06-17 Steering device for automobile

Country Status (1)

Country Link
CN (1) CN201264642Y (en)

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GR01 Patent grant
C14 Grant of patent or utility model
CX01 Expiry of patent term

Granted publication date: 20090701

CX01 Expiry of patent term