CN201291803Y

CN201291803Y - Car lamp steering driving mechanism

Info

Publication number: CN201291803Y
Application number: CNU2008201361469U
Authority: CN
Inventors: 吉英存
Original assignee: Beijing Jingwei Hirain Tech Co Ltd
Current assignee: Beijing Jingwei Hirain Tech Co Ltd
Priority date: 2008-01-31
Filing date: 2008-10-06
Publication date: 2009-08-19
Anticipated expiration: 2018-10-06
Also published as: CN101402330A; CN201347020Y; CN201347019Y; CN101402330B

Abstract

The utility model relates to a vehicle lamp direction-changing driving device which comprises a shell body, a motor, a circuit board and a gear speed-reducing mechanism. The motor is arranged at the outer side of the shell body; wherein the motor is provided with a motor shell and an end cover, and a rotating shaft of the motor is respectively supported on the motor shell and the end cover by a first bearing and a second bearing; the end part of the rotating shaft of the motor is arranged in the shell body in a penetrating manner and is connected with a driving gear, the driving gear is meshed with the gear speed-reducing mechanism and drives a vehicle lamp to change direction by an output shaft of the gear speed-reducing mechanism, so as to change the irradiating direction of the vehicle lamp.

Description

Car lamp steering driving mechanism

Technical field

The utility model relates to a kind of Vehicular illumination device, specifically, the utility model relates to a kind of Vehicular illumination device that can change the car light irradiation direction according to the motoring condition of vehicle, more particularly, the utility model relates to a kind of actuating device that is used for the change car light irradiation direction of above-mentioned Vehicular illumination device.

Background technology

Usually, so-called self-adaptive headlamp system (AFS, Adaptive front-lighting System) is a kind of Vehicular illumination system that can adjust the car light irradiation direction according to the motoring condition of automobile, its objective is in order to improve the safety of night driving.The general motoring condition (for example speed of a motor vehicle, emergency brake, startup, climbing, turning etc.) of existing self-adaptive headlamp system by various sensor detection vehicles, then with an information input ECU (Electronic Control Unit) who detects, ECU calculates according to these information and judges, to control signal of actuating device output of adjusting the car light irradiation direction, control this actuating device the direction of illumination of car light is adjusted (for example, the X deflection angle of left and right car light and vertical deflection angle).

Disclose the actuating device of a kind of ASF of being used among the US 6623147B2, as illustrated in fig. 1 and 2, this actuating device comprises a housing 41 ', and it is made of upper shell 41U ' and lower house 41D '.This actuating device also comprises a motor 45 ', and it is arranged between upper shell 41U ' and the lower house 41D '.In order to guarantee the stability of rotation of motor 45 ', the rotating shaft 453 ' two ends of motor 45 ' are supported on respectively in the supported hole of upper shell 41U ' and lower house 41D ' relative set.In view of rotating shaft 453 ' is rotated with high rotational speed usually, in order to reduce the wearing and tearing of rotating shaft 453 ' to the supported hole of housing 41 ', be provided with a support sleeve 452 ' at rotating shaft 453 ' one end, and in corresponding supported hole 414 ', being provided with a thrust baring 451 ', the other end of rotating shaft 453 ' is provided with a driven wheel 461 '.The ECU (not shown) is according to the signal of detected traveling state of vehicle to a control of motor 45 ' output car light irradiation direction, and motor 45 ' drives corresponding gear reduction by driven wheel 461 ', and then the direction of illumination of control car light.

Above-mentioned actuating device of the prior art adopts is that motor 45 ' is built in version in the housing 41 ', this version need be carried out integrated design to housing 41 ' and motor 45 ', on the one hand, owing to there are wearing and tearing, need support sleeve 452 ' be set in the end of the rotating shaft 453 ' of motor 45 ', thereby need be at the different motor 45 ' of actuating device design of different model, and need be at different motors 45 ', go up the corresponding supported hole of design at housing 41 ', reduce the design-calculated alerting ability, increased cost.On the other hand, be to guarantee accuracy of positioning, need the position of the corresponding supported hole of lower house on the precise design, design, manufacturing and even the assembling of housing 41 ' proposed high requirement, this has increased cost equally.And with machine shaft directly by the mode of housings support, because the material of rotating shaft and housing is different, under different temperatures, owing to the reason of expanding with heat and contract with cold, distortion in various degree will take place in rotating shaft and housing, thereby cause the concentricity generation deviation of machine shaft, influence driving efficiency, even have the housing danger that rotating shaft is stuck with stator.And, when the manufacturing of housing and motor or mismatch error surpass certain scope, also be easy in fitting process, cause the rotating shaft of motor the accentric problem to occur, thereby have influence on the normal engaged of driven wheel 461 ' and next stage gear, not only quickened gear wearing and tearing, have influence on the service life of whole device, and can produce unnecessary noise.

And,, also influenced the heat radiation of motor 45 ' because motor 45 ' is built in the housing 41 '.

In addition, owing to also dispose printed circuit board (PCB) 42 ' in the housing 41 ', can produce electromagnetic interference to the electronic component that printed circuit board (PCB) 42 ' is gone up such as Hall element in the motor 45 ' operation process.

CN 1951723A attempts to provide a kind of solution that solves the problems of the technologies described above, and wherein discloses the actuating device of a kind of AFS of being used for equally, and as shown in Figure 3, this actuating device comprises a housing, and it is made of upper shell and lower house.A motor 121 ' is arranged in hull outside.Motor 121 ' comprises a casing and an adapter plate that is arranged on this bottom of shell, and this adapter plate is used for motor 121 ' is passed through the screw overall fixed at housing.The mouth of the rotating shaft 1211 ' of motor 121 ' is provided with a driven wheel 1212 ', motor 121 ' drives corresponding gear reduction by this driven wheel 1212 ', thereby exports to the direction of illumination of the instruction control car light of motor 121 ' according to the ECU (not shown).This actuating device also comprises a printed circuit board (PCB), is provided with sensing element on the printed circuit board (PCB), is used to detect the changes of magnetic field that is arranged at the magnet on the terminal gear.For solve because of terminal gear angle range too small, cause the low shortcoming of detection sensitivity, the prior art has increased an equipment gear 127 ' that has magnet 1271 ' in gear reduction, because the diameter of equipment gear 127 ' is less than the diameter of terminal gear, increase the rotational angle of magnet 1271 ', and then improved the sensitivity of surveying.

The version that CN 1951723A attempts to adopt motor 121 ' to be placed on housing solves the problem that actuating device ran among the aforementioned US 6623147B2.

Yet, the employing screw directly is fixed on motor the assembling mode on the housing in CN 1951723A, because different parts (for example, motor and housing) make by different vendor usually, have mismatch error, when the assembling motor, off-centre and inclination take place in machine shaft easily, thereby make the machine shaft end driven wheel can not with next stage gear normal engaged, the life-span of having reduced the work efficiency and the gear of system.And CN 1951723A does not specifically provide the supporting construction of the rotating shaft 1211 ' of motor 121 ', can not know that for a person skilled in the art the rotating shaft 1211 ' that overcomes motor 121 ' is supported and the technology solution of accentric defective.And, because motor 121 ' is placed on hull outside, the rotating shaft 1211 ' of motor 121 ' in fact is in the state of cantilever in driving the process of driven wheel 1212 ', its unbalance stress, rotate the enlightenment of this problem that also is difficult to achieve a solution of jiggly defective from the disclosed content of the prior art.Therefore a kind of technical solution of support motor rotating shaft need be provided, overcome because of machine shaft is in unbalance stress that cantilever position brings, rotates steadily, easy accentric defective.

And among the CN 1951723A, because being the adapter plate by bottom of shell, motor integral body is fixed on the housing, therefore the center of gravity of motor is integral biased in this adapter plate one side, gravity that motor is suffered and driving force all concentrate on the connection location place of casing and adapter plate, easily make the connection between the two produce loosening (if adopt welding between the two, the long running of motor also be easy to make weld fatigue, get loose), influence the smooth operation of motor and the reliability of system.

In addition, though in CN 1951723A, electric machine external has partly been eliminated the electromagnetic radiation that produces in the motor operation course interference to the electronic component on the circuit card in the housing in the mode of housing, but since housing to be generally the plastic or other material that does not possess electro-magnetic screen function made, so the problems referred to above do not obtain the solution of essence yet.

So, be necessary to provide a kind of car lamp steering driving mechanism, fundamentally to overcome above-mentioned defective of the prior art.

Summary of the invention

In order to solve existing problem in the above-mentioned prior art, a total goal of the invention of the present utility model is to propose a kind of car lamp steering driving mechanism, it has solved the electromagnetic radiation that produced in the motor operation course interference problem to the sub-element on the circuit card in the housing effectively, and reduced the requirement of design, manufacturing and assembly precision to parts, reduced manufacturing cost.

Specifically, the actuating device that the utility model proposed need not to design special supported hole according to the location of machine shaft, thereby reduced the requirement of design, manufacturing and assembly precision, reduced manufacturing cost, and reduced the interference of electromagnetic radiation housing.

Another purpose of the present utility model is to propose a kind of car lamp steering driving mechanism, this actuating device has proposed a kind of technical solution of support motor rotating shaft, has overcome because of machine shaft is in unbalance stress that cantilever position brings, rotates steadily, easy accentric defective.

Another purpose of the present utility model is to propose a kind of car lamp steering driving mechanism, its overcome motor be fixed on hull outside insecure, easily get loose, influence the defective of the reliability of the smooth operation of motor and system.

Of the present utility model to also have a purpose be to propose a kind of car lamp steering driving mechanism, and it need not the rotary state that the additive incrementation equipment gear just can detecting motor, has saved cost.

For realizing foregoing invention purpose of the present utility model, the utility model proposes a kind of car lamp steering driving mechanism, this actuating device comprises a housing, a motor, circuit card and gear reduction, wherein, this housing comprises a upper shell and a lower house, formed a spatial accommodation between described upper shell and the described lower house, described gear reduction and described circuit card are arranged in this spatial accommodation; Described motor is arranged on described hull outside, wherein, this motor have a casing, rotating shaft, stator, rotor and clutch shaft bearing,, described clutch shaft bearing is supported in the described casing, described rotating shaft is supported on described casing and the described end cap by this clutch shaft bearing; Described motor is fixed on described hull outside by the fixed mechanism on this casing, and the casing of described motor has a grounding pin that links to each other with described circuit card; The roller end of described motor wears into linking to each other with a driven wheel in the described housing, and this driven wheel meshes with described gear reduction, and the output shaft by described gear reduction drives described car light and turn to, thus the direction of illumination of change car light.

Preferably, also comprise an end cap that covers casing in the described motor, the other end of described rotating shaft passes through one second bearings on described end cap.

Preferably, the end cap of described motor is captiveed joint with the casing of described motor, more preferably, and described end cap and described casing weld together.

Preferably, the position corresponding to the rotating shaft of described motor on the described housing is provided with a through hole, and the diameter of this through hole is greater than the external diameter of described driven wheel.

Preferably, the installation site corresponding to this motor on the described housing is provided with a locating flange, and the casing of described motor is buckled in the outside of described locating flange.

Preferably, have at least one flange on the end cap of described motor, the position corresponding to this flange on the described housing is provided with at least one corresponding detent, and described flange is buckled in the described detent.

Preferably, one of described reducing gear is provided with a magnet ring, and the position corresponding to described magnet ring on the described circuit card is provided with at least one magnetic induction part, is used to detect the action of above-mentioned motor.

Since the rotating shaft two ends of motor of the present utility model respectively by bearings between the casing and end cap of motor, and casing and end cap are fixed together, therefore, when being fixed on the housing of actuating device by the fixed mechanism on the casing when whole motor, the rotating shaft of motor is actually the housings support that do not rely on actuating device, thereby the installation site corresponding to machine shaft can be provided with a through hole that diameter is bigger on the housing of actuating device, thereby need not provide the structural support on the housing of actuating device, saved cost on the one hand, on the other hand, avoided eccentric and stuck defective because of the rotating shaft that distortion caused of the housing of actuating device.

In addition, the utility model proposes a kind of technical solution of coming the rotating shaft of support motor between the casing of motor and end cap by the mode that bearing is set, the mode of captiveing joint of the end cap that has proposed simultaneously motor again and the casing of motor is in unbalance stress that cantilever position brings, rotates the technology solution of steady, easy accentric defective because of machine shaft thereby provided the solution of failing in the prior art to provide.

In addition, the casing of motor is fixed on the mode of the hull outside of actuating device by fixed mechanism, make the gravity of motor and driving force be distributed to each attachment point position with casing, therefore as long as guarantee that being connected firmly of each attachment point position can guarantee that motor can be fixed on the casing of actuating device.Again because the end cap of motor and the housing of actuating device are provided with corresponding detent mechanism, thereby need not as shown in the prior art, need motor be positioned by the installation site of motor, both increased the fastness of installing, increased locating accuracy again.Simultaneously, owing to need not to adjust the location of motor to the actuating device housing by the fixed mechanism of adjusting on the motor case, but locate by the mode of locating flange on the housing or groove, thereby reduced the difficulty of assembling.

Description of drawings

The following drawings only is intended to the utility model done and schematically illustrates and explain, does not limit scope of the present utility model.Wherein:

Fig. 1 and Fig. 2 are a kind of structural representations of existing car light steering controlling device;

Fig. 3 is the structural representation of another kind of existing car light steering controlling device;

Fig. 4 is the perspective exploded view of car light steering controlling device of the present utility model;

Fig. 5 is the decomposing schematic representation of motor of the present utility model;

Fig. 6 is the structural representation of motor assembled state of the present utility model.

The specific embodiment

Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast the description of drawings specific embodiment of the present utility model.Wherein, identical parts adopt identical label.In the explanation of this paper, " one " comprises " one " and " more than one ".

Referring to Fig. 4, what wherein show is decomposition view according to the car lamp steering driving mechanism A of a preferred embodiment of the present utility model, this actuating device A comprises a housing 2, this housing 2 is made of upper shell 21 and lower house 22, upper shell 21 and lower house 22 interconnect by the engagement between a plurality of corresponding retaining ring 221 on a plurality of buckles 211 on the upper shell 21 and the lower house 22, certainly, those skilled in the art are to be understood that, upper shell 21 and lower house 22 can also be fixed together by any usual connection mode, for example, can utilize screw that the mode that a plurality of corresponding lug 222 on a plurality of lugs 212 on the upper shell 21 and the lower house 22 links together is fixed together upper shell 21 and lower house 22.

Form a spatial accommodation between the upper shell 21 of actuating device A and the lower house 22, in this spatial accommodation, be provided with a circuit card 4 and reduction gear 3.Circuit card 4 is provided with relevant control circuit, comprising a magnetic induction part 45, is used to detect the running state of above-mentioned motor 1.A motor 1 is arranged on the outside of housing 2, is arranged on the outside of upper shell 21 specifically.Rotating shaft 13 ends of motor 1 wear into housing 2 link to each other with a driven wheel 5 (referring to Fig. 6).Position corresponding to the rotating shaft 13 of motor 1 on the housing 2 is provided with a through hole 219, and the diameter of through hole 219 is greater than the external diameter of driven wheel 5.

Reduction gear 3 comprises a first order reducing gear 31 and a second stage reducing gear 32, the rotating shaft of first order reducing gear 31 is supported the location by the supporting construction on the lower house 22, and the rotating shaft of second stage reducing gear 32 is supported the location by the supporting construction on the upper shell 21.As shown in Figure 4, when the rotating shaft of first order reducing gear 31 and second stage reducing gear 32 had outstanding pivot shaft 36 respectively, the supporting construction on the housing can be the round boss that has supported hole.Certainly, it will be appreciated by those skilled in the art that this supporting construction also can be the circular groove that has supported hole.If in the rotating shaft of first order reducing gear 31 and second stage reducing gear 32 supported hole is set respectively, then the supporting construction on the housing also can be the pivot shaft that protrudes.

Installation for ease of driven wheel 5, first reducing gear 31, second reducing gear 32 and output shaft 33 is provided with corresponding opening with their cooresponding positions on the circuit card 4.

First reducing gear 31 is made up of big gear wheel 311 that forms one and miniature gears 312, and second reducing gear 32 is made up of big gear wheel 321 that forms one and miniature gears 322.Driven wheel 5 that machine shaft 13 ends are provided with and 311 engagements of the big gear wheel of first reducing gear 31; The miniature gears 312 of first reducing gear 31 again with big gear wheel 321 engagement of second reducing gear 32; Then, quadrant gear 34 engagements that are wholely set on the miniature gears 322 of second reducing gear 32 and the output shaft 33.Adopt this structure, the rotation of motor 1 can be passed to first reducing gear 31 via driven wheel 5, pass to second reducing gear 32 then, by quadrant gear 34 rotation is passed to output shaft 33 outputs at last, and then drive car lights by output shaft 33 and turn to, thereby changed the direction of illumination of car light.

As shown in Figure 4, second reducing gear 32 is provided with a magnet ring 35, and the position corresponding to magnet ring 35 on the circuit card 4 is provided with at least one magnetic induction part 45, is used to detect the action of motor 1.Certainly, it will be appreciated by those skilled in the art that magnet ring 35 also can be arranged on second reducing gear 31.

Motor 1 can adopt the mode of modular design to be made by different manufacturers with housing 2, for example, housing 2 and speed reduction gearing 3 grades that are placed in one can be made by the specialized vendor according to designing requirement, and 1 in motor can be manufactured and designed by other specialized vendor according to the diameter of required power, rotating speed, electric current and oad, rotating shaft 13 etc.For example when mounted, motor (comprising driven wheel) is fixed by elder generation and lower house, refills and joins reducing gear and circuit card, last fit on housing; Perhaps, in another embodiment of the present utility model, also can be after module be produced, motor 1 and driven wheel 5 are in the same place as an independent detail assembly, and with housing 2, circuit card 4, speed reduction gearing 3, output shaft 33 grades as another independent detail assembly together, because the diameter of the through hole 219 that is provided with corresponding to machine shaft 13 positions on the housing 2 is greater than the external diameter of driven wheel 5, so can under the situation of not dismantling housing 2 motor 1 be installed on the housing 2 easily.Adopt this Design Mode, car lamp steering driving mechanism A of the present utility model needn't be too overcritical to the requirement of parts design, manufacturing and assembly precision, thereby reduced manufacturing cost.

Below in conjunction with Fig. 5 and 6, describe the concrete structure of the utility model motor 1 in detail.

Motor 1 comprises a casing 11, and casing 11 is provided with and is used for the fixed mechanism of motor 1 overall fixed on housing 2.As shown in the figure, fixed mechanism can comprise a plurality of flat fixing feet 116, fixing feet 116 is buckled in a plurality of long and narrow motor fixed orifice 216 of relative set on the upper shell 21, fixed orifice 216 is more bigger than the size of fixing feet 116, can adjust the relative position of motor 1 and upper shell 21 when being used for being fixed on motor 1 on the upper shell 21, thereby can adapt to the requirement of reduction, thereby reduce the manufacturing cost of housing 2 design, manufacturing and the assembly precision of housing 2.Certainly, it will be appreciated by those skilled in the art that the utility model can also adopt other connection mode that motor 1 is fixed on the upper shell 21, for example, can adopt the screw ways of connecting that the casing 11 of motor 1 is fixed on the upper shell 21.

Also be provided with a grounding pin 113 on the casing 11 of described motor 1, be used to make casing 11 ground connection of motor 1, the electromagnetic interference in elimination motor 1 working process is to the influence of other electric elementss (for example magnetic induction part 45) in the housing 2.

Motor 1 also has an end cap 12, is holding rotating shaft 13, stator 161, rotor 162, a clutch shaft bearing 14 and one second bearing 15 between this casing 11 and this end cap 12.Clutch shaft bearing 14 is supported in the circular groove 114 of casing 11 bottoms, and second bearing 15 is supported on the end cap 12 in a circular groove 115 of motor internal.Machine shaft 13 is supported on the casing 11 by clutch shaft bearing 14, is supported on the end cap 12 by second bearing 15.The clutch shaft bearing 14 and second bearing 15 can be graphite oilless sintered-metal bearings, also can be any bearings that is applicable to motor, for example, and thrust baring.Motor 1 can be a stepping motor, also can be dc brushless motor.

The end cap 12 of motor 1 is captiveed joint with the casing 11 of motor 1.In a preferred embodiment of the present utility model, end cap 12 and casing 11 weld togethers, certainly those skilled in the art are to be understood that, end cap 12 can also be connected on the casing 11 of motor 1 by any other fixed form, for example, can have outside thread on the end cap 12, and can have corresponding negative thread on the casing 11, end cap 12 can be fixedly connected on by the mode that screw thread screws on the casing 11 of motor 1.

Because motor 1 is fixed on housing 2 outsides by the fixing feet on the casing 11 116, therefore, the external diameter outline of end cap 12 is less than the internal diameter of the casing 11 of motor 1.In this case, the end cap of motor 1 12 will be lower than the edge 111 of the casing 11 of motor 1 usually in the casing 11 bonded assembly positions of itself and motor 1, and just end cap 12 slightly is absorbed in the casing 11.At this moment, can be provided with the locating flange 215 of a circle on the housing 2 of actuating device A corresponding to the installed position of motor 1, the diameter of flange 215 is slightly less than the internal diameter of the casing 11 of motor 1, it is extend in the zone 112 that end cap 12 caves in just, thereby the casing 11 of motor 1 can be buckled in the outside (referring to Fig. 4) of described locating flange 215.By said structure, such locating flange 215 can be set on housing 2, make motor 1 to be positioned on the housing 2 by flange 215 very easily, avoid causing machine shaft 13 off-centre because of installation error.Certainly, locating flange 215 only is a specific embodiment that realizes motor 1 location.In another embodiment of the present utility model, at least one circular flange can be set, on the end cap 12 of motor 1 with the brace groove 115 that constitutes second bearing 15.Be provided with a corresponding through hole 219 corresponding to this lugs position place on the housing 2, its slightly larger in diameter is in the diameter of flange, in the time of installation, and can be by this flange being buckled in the installing and locating that realizes motor in the described through hole 219.In another embodiment of the present utility model, the stepped appearance round flange 117,118 of two arranged concentric can be set on this end cap 12, and on the housing 2 of actuating device A also relative set the stepped circular groove 217 of two arranged concentric, 218, two flanges 117,118 are if be positioned in two grooves 217,218 simultaneously, just can guarantee that motor 1 accurately locatees in the installation site, avoid causing rotating shaft 13 accentric problems because of installation error.

As mentioned above, because the two ends of the utility model machine shaft 13 are supported between the casing 11 and end cap 12 of motor 1 by bearing 14,15 respectively, and casing 11 and end cap 12 are fixed together, therefore, when whole motor 1 is fixed on the housing 2 by the fixing feet on the casing 11 116, the rotating shaft 13 of motor 1 does not also rely on housing 2 supports, thereby can be relatively large on the housing 2, thereby need not provide the structural support on housing 2 corresponding to the diameter of the set through hole 219 in the installation site of rotating shaft 13.This has saved cost on the one hand, has also avoided the eccentric and stuck situation because of the rotating shaft that distortion caused 13 of housing 2 on the other hand.

In addition, owing to the utility model proposes and a kind ofly come support motor rotating shaft 13 between motor case 11 and end cap 12 by the mode that bearing 14 and 15 are set, simultaneously end cap 12 and motor case 11 adopt again and captive joint mode, are in unbalance stress that cantilever position brings, rotate steady, easy accentric defective because of machine shaft thereby solved in the prior art.

In addition, motor case 11 is fixed on the mode in housing 2 outsides by fixing feet 116, make the gravity and the driving force of motor 1 be distributed to each position of fixing with housing 2, therefore as long as guarantee that being connected firmly of each attachment point position can guarantee that motor can be fixed on the housing 2.Again owing on the housing 2 of the end cap 12 of motor 1 and actuating device A, be provided with corresponding detent mechanism, thereby need not as prior art motor 1 to be positioned by the installation site of motor, both increase the fastness of installing, increased the accuracy of location again.Simultaneously, owing to need not to adjust the location of the housing 2 of 1 couple of actuating device A of motor by the fixing feet of adjusting on the motor case 11 116, and just locate by locating flange 215 or groove 217,218 on the housing 2, thereby reduced the difficulty of assembling.

The above only is the schematic specific embodiment of the utility model, is not in order to limit scope of the present utility model.Any those skilled in the art, equivalent variations, the modification of being done under the prerequisite that does not break away from design of the present utility model and principle and combining all should belong to the scope of the utility model protection.

Claims

1, a kind of car lamp steering driving mechanism, this actuating device comprise a housing (2), a motor (1), and a circuit card (4) and gear reduction (3) is characterized in that:

This housing (2) comprises a upper shell (21) and a lower house (22), has formed a spatial accommodation between described upper shell (21) and the described lower house (22), and described gear reduction (3) and described circuit card (4) are arranged in this spatial accommodation;

Described motor (1) is arranged on described housing (2) outside, described motor (1) has (11) rotating shafts of a casing (13), a stator (161), a rotor (162) and a clutch shaft bearing (14), described clutch shaft bearing (14) is supported in the described casing (11), and described rotating shaft (13) is supported on the described casing (11) by this clutch shaft bearing (14);

Described motor (1) is fixed on described housing (2) outside by the fixed mechanism (116) on this casing (11); And has the grounding pin (113) that at least one links to each other with circuit card (4) on the casing (11);

Rotating shaft (13) end of described motor (1) wears in the described housing (2) and links to each other with a driven wheel (5), this driven wheel (5) and described gear reduction (3) engagement, and the output shaft (33) by described gear reduction (3) drives described car light and turns to, thereby changes the direction of illumination of car light.

2, car lamp steering driving mechanism as claimed in claim 1, wherein, also comprise an end cap (12) that covers casing (11) in the described motor (1), the other end of described rotating shaft (13) is supported on the described end cap (12) by one second bearing (15).

3, car lamp steering driving mechanism as claimed in claim 2, wherein, the end cap (12) of described motor (1) is captiveed joint with the casing (11) of described motor (1).

4, as claim 2 or 3 described car lamp steering driving mechanisms, wherein, described end cap (12) and described casing (11) weld together.

5, car lamp steering driving mechanism as claimed in claim 1 or 2, wherein, the position that described housing (2) is gone up corresponding to the rotating shaft (13) of described motor (1) is provided with a through hole (219), and the diameter of this through hole (219) is greater than the external diameter of described driven wheel (5).

6, car lamp steering driving mechanism as claimed in claim 1 or 2, wherein, the installation site that described housing (2) is gone up corresponding to this motor (1) is provided with a locating flange (215), and the casing (11) of described motor (1) is buckled in the outside of described locating flange (215).

7, as claim 2 or 3 described car lamp steering driving mechanisms, wherein, has at least one flange (117 on the end cap (12) of described motor (1), 118), described housing (2) upward is provided with at least one corresponding detent (217 corresponding to the position of this flange (117,118), 218), described flange (117,118) is buckled in the described detent (217,218).

8, car lamp steering driving mechanism as claimed in claim 1 or 2, wherein, the second stage reducing gear (32) that described reducing gear (3) has first order reducing gear (31) and is engaged with, described reducing gear (31,32) one of be provided with a magnet ring (35), the position that described circuit card (4) is gone up corresponding to described magnet ring (35) is provided with at least one magnetic induction part (45), is used to detect the action of above-mentioned motor (1).