CN202038238U

CN202038238U - Vehicle mirror electric actuator

Info

Publication number: CN202038238U
Application number: CN201120104543XU
Authority: CN
Inventors: 鲁爀峻; 郑敬澈; 罗尔夫.斯沃特
Original assignee: DONGGUAN HAOYUAN AUTOMOBILE FITTINGS CO LTD
Current assignee: Hao Yong Automotive Controls Ltd
Priority date: 2011-04-11
Filing date: 2011-04-11
Publication date: 2011-11-16
Anticipated expiration: 2021-04-11

Abstract

The utility model relates to a vehicle rearview mirror electric actuator, including the shell that has the inner wall that is the sphere form, with the shell apart from presetting apart from fixed connection's inner shell, adapter and the drive arrangement who drives the adapter activity, the adapter is including the plate body that is used for supporting the back vision mirror surface and from the spherical shell that plate body one side arch is cavity annular sphere form, and the spherical shell is by the ground centre gripping of activity between shell and inner shell, is equipped with a plurality of elastic butt shell fragments on inner shell and spherical shell respectively between inner shell outer wall and the spherical shell inner wall evenly distributed. The inner wall of the shell is provided with a groove, and lubricating oil is injected into the groove. The utility model discloses a set up the shell fragment between the spherical shell of inner shell and adapter, the external vibrations that transmit of effectively absorbable have avoided external vibrations or the rear-view mirror that the impact leads to rock, ensure driving safety better. Through set up the recess between shell and spherical shell to pour into lubricating oil into, can also hinder water, dust infiltration when lubricated shell and spherical shell.

Description

The vehicle mirrors electric actuator

Technical field

The utility model relates to the vehicle mirrors technology, refers in particular to a kind of vehicle mirrors electric actuator.

Background technology

Often drive adjustment by means of actuator (Actuator) such as the back mirror that uses on the vehicles such as automobile, actuator comprises shell, inner casing, be held between shell and the inner casing versatilely and be used to the actuating device that supports the adapter of minute surface and be used to drive the minute surface displacement.

Back mirror belongs to and is subjected to the very large product of vibration influence, when extraneous vibrations are communicated to back mirror, also can be affected to produce by the observed object of back mirror and rock and can't see the car back clearly or be beyond recognition object, and easily cause safety misadventure, therefore, up-to-standard back mirror actuator should suitably absorb the extraneous vibrations of coming of passing on.Normally utilize the mechanicalness of actuator itself to move freely space (Free Play) and suitable moment of torsion effectively prevents the influence of vehicle vibrations to back mirror.But be used as power if moment of torsion is excessive itself also need increase thereupon, and if moment of torsion is too small then can cause automobile to produce little vibrations the time, the position of back mirror can be moved, therefore, for keeping suitable moment of torsion, damping effect is often not ideal enough.

And actuator is installed in outside vehicle usually, and inside can directly have influence on the start and the performance of actuator if any water or dust infiltration.At present, prevent inner water leaking-in of actuator or dust by the water-proofness boot seal is set usually, but effect is general.

In addition, the actuating device of actuator comprises motor, driving gear set and power-transfer clutch, is cooperated with tooth bar on the adapter by the mouth of power-transfer clutch, realizes displacement thereby drive adapter.Existing power-transfer clutch normally adopts slide construction to connect axle drive shaft and action shaft, when twisting load does not surpass a quota, axle drive shaft and action shaft are connected synchronous rotation or rotation, and load increases when overfulfiling the quota load, axle drive shaft and action shaft then can produce slide relative, do not form transmission of power.But on clutch characteristics, can produce the wearing and tearing that friction causes when taking place to continue to slide, wearing and tearing cause the power-transfer clutch dynamics to reduce gradually, finally lose the power-transfer clutch function.

The utility model content

Technical problem to be solved in the utility model is, a kind of vehicle mirrors electric actuator is provided, and causes minute surface to rock to avoid external shock or impact.

Another technical matters to be solved of the utility model is to provide a kind of vehicle mirrors electric actuator, to prevent inner water leaking-in of actuator or dust.

Another technical matters to be solved of the utility model is, a kind of vehicle mirrors electric actuator is provided, and its used clutch abrasion is little, and the life-span is long.

For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of vehicle mirrors electric actuator, comprise shell with the inwall that is dome shape, the inner casing of captiveing joint at a distance of predeterminable range with shell, the actuating device of adapter and the activity of driving adapter, described adapter comprises and is used to support the plate body of backsight minute surface and the spherical shell that is the hollow ring dome shape from plate body one side projection, described spherical shell is held between shell and the inner casing versatilely, is provided with some elasticity respectively between described inner casing outer wall and the spherical shell inwall evenly distributedly and is connected to shell fragment on inner casing and the spherical shell.

Further, described inner casing outer wall is provided with some draw-in grooves, and described shell fragment is arranged in the described draw-in groove.

Further, the inwall of described shell is provided with groove, is marked with lubricating oil in the described groove.

Further, described groove cross section is V-shaped.

Further, the driving gear set that described actuating device comprises motor, cooperate with the motor output shaft transmission and cooperate the power-transfer clutch that links to each other with driving gear set, the mouth of described power-transfer clutch cooperates with rack driven on being fixed in spherical shell.

Further, described power-transfer clutch comprise cooperate with transmission gear and the middle part be provided with through hole driven wheel, cooperate with tooth bar on the spherical shell make moving gear, a described side of making moving gear is provided with the gear wheel shaft of concentric, be nested with the elasticity cranse on the gear wheel shaft, the through-hole wall of described driven wheel is provided with positioning groove, described elasticity cranse radially protrude be provided with that correspondence snaps in the described positioning groove so that the elasticity cranse week upwards with respect to the fixed inlay card of driven wheel portion.

Further, described power-transfer clutch comprise cooperate with driving gear set and the middle part be provided with through hole driven wheel, cooperate with tooth bar on the spherical shell make moving gear, a described side of making moving gear is provided with the gear wheel shaft of concentric, and gear wheel shaft is inserted in the through hole of driven wheel, also be provided with the caulking groove that is centered around described through hole periphery and coaxial setting on the end face of driven wheel, be inserted with the pressure load cover that is used for increasing friction force between through-hole wall and the gear wheel shaft in the described caulking groove.

Further, the described moving gear of doing also is provided with perforation, be equipped with an installation shaft in the described perforation, the pressure load cover also is placed on the described installation shaft, and also be arranged with spring on the described installation shaft, one end of described spring presses on the bulge loop on the installation shaft, and the other end presses on the outer face of described pressure load cover so that the pressure load cover is compacted in the caulking groove.

Further, described driving gear set comprises the transmission gear that cooperates with motor output shaft and is fixed as one with first gear and the worm screw of coaxial setting.

The beneficial effects of the utility model are as follows: by between the spherical shell of inner casing and adapter shell fragment being set, can absorb the vibrations that the external world is transmitted effectively, thereby the backsight minute surface of having avoided external shock or impact to cause preferably rocks, better guarantee driving safety.And, inject lubricating oil in it by groove is set between shell and spherical shell, and can lubricate shell and spherical shell on the one hand, then can block water, dust infiltration on the other hand.In addition, by adopting clutch configuration of the present utility model, can effectively reduce the wearing and tearing of power-transfer clutch, longer service life, and when artificial rotation minute surface, use the effect of power-transfer clutch equally, make driven wheel and do that moving gear is relative to trackslip, and can realize the manual regulation minute surface.

Description of drawings

Fig. 1 is the perspective view of the utility model vehicle mirrors electric actuator.

Fig. 2 is the three-dimensional cutaway view of the utility model vehicle mirrors electric actuator.

Fig. 3 is the enlarged drawing of A portion among Fig. 2.

Fig. 4 is the utility model vehicle mirrors electric actuator inner structure scheme drawing.

Fig. 5 is the inner structure scheme drawing of another angle of the utility model vehicle mirrors electric actuator.

Fig. 6 is the cross sectional drawing of first kind of power-transfer clutch of the utility model vehicle mirrors electric actuator.

Fig. 7 is the three-dimensional cutaway view of second kind of power-transfer clutch of the utility model vehicle mirrors electric actuator.

The specific embodiment

Below in conjunction with the drawings and specific embodiments the utility model is described in further details.

As Fig. 1 ~ shown in Figure 3, the utility model provides a kind of vehicle mirrors electric actuator, comprises shell 1 with the inwall 10 that is dome shape, inner casing 2, the adapter 3 of captiveing joint at a distance of predeterminable range with shell 1 and the actuating device 4 that drives adapter 3 activities.

Wherein, described adapter 3 comprises and is used to support the plate body 30 of backsight minute surface (scheming not shown) and the spherical shell 32 that is the hollow ring dome shape from plate body 30 1 side projectioies, described spherical shell 32 is held between shell 1 and the inner casing 2 versatilely, also be provided with the tooth bar 34 that drives by actuating device 4 on the adapter 3, tooth bar 34 is typically provided with 2, is separately positioned in two planes that are in 90 degree angles.As shown in Figure 3, be provided with some elasticity respectively between the inwall 320 of the outer wall 20 of described inner casing 2 and spherical shell 32 evenly distributedly and be connected to shell fragment 5 on inner casing 2 and the spherical shell 32.Described shell fragment 5 can be assembled on the outer wall 20 of inner casing 2 in the corresponding draw-in groove 22 and resilient abutment on spherical shell 32 inwalls 320.Certainly, being appreciated that ground, also can be that shell fragment 5 is assembled on described spherical shell 32 inwalls 320 draw-in groove (scheme not shown) that is provided with is interior and be resisted against on the outer wall 20 of inner casing 2.

As shown in Figure 3, and be that the water of avoiding extraneous better, dust etc. infiltrate actuator inside, and also be provided with groove 100 at the inwall 10 of described shell 1, inject lubricating oils in the groove 100, thereby can lubricate shell 1 and spherical shell 32 on the one hand, then can block water, dust infiltration on the other hand.Described groove 100 cross-sectional planes are preferably V-arrangement.

In conjunction with Fig. 4 and shown in Figure 5, described actuating device 4 comprises motor 40, cooperates the power-transfer clutch 44 that links to each other with the driving gear set 42 of motor output shaft 400 transmissions cooperation and with driving gear set 42.Described driving gear set 42 comprises the transmission gear 420 that cooperates with motor output shaft 400 and is fixed as one with transmission gear 420 and the worm screw 422 of coaxial setting that worm screw 422 cooperates with power-transfer clutch 44.The mouth of described power-transfer clutch 44 cooperates with tooth bar 34 transmissions on being fixed in spherical shell 32, thereby drives tooth bar 34 displacements, promptly orders about the corresponding displacement of adapter.

In conjunction with shown in Figure 6, be a kind of low capacity power-transfer clutch that the utility model adopts, it is applicable to the situation that twisting load is less.This power-transfer clutch comprise cooperate with driving gear set 42 and the middle part be provided with through hole driven wheel 440, cooperate with tooth bar 34 on the spherical shell 32 make moving gear 442, a described side of making moving gear 442 is provided with the gear wheel shaft 444 of concentric, be nested with elasticity cranse 446 on the gear wheel shaft 444, the through-hole wall of described driven wheel 440 is provided with positioning groove 4400, described elasticity cranse 446 radially protrude be provided with that correspondence snaps in the described positioning groove 4400 so that elasticity cranse 446 week upwards with respect to the fixed inlay card of driven wheel 440 portion 4460.When this low capacity power-transfer clutch is worked, in little load condition following time, utilize the effect of the lock ring gear wheel shaft 444 of elasticity cranse 446, power can directly be communicated to from driven wheel 440 and make moving gear 442, and be used as when load increases the value of being above standard on the moving gear 442, the power of driven wheel 440 then can't be delivered to by the elasticity cranse and make moving gear 442, and the gear wheel shaft 444 that makes on the moving gear 442 with elasticity cranse 446 trackslips, make moving gear 442 and promptly can't rotate this moment, and the wearing and tearing between each parts are less.

As shown in Figure 7, be the another kind of high capacity power-transfer clutch that the utility model adopts, it is applicable to the situation that twisting load is bigger.This power-transfer clutch comprises and cooperating with driving gear set 42 transmissions and the middle part is provided with the driven wheel 440 of through hole, what cooperate with tooth bar 34 on the spherical shell 32 makes moving gear 442, a described side of making moving gear 442 is provided with the gear wheel shaft 444 of concentric, and gear wheel shaft 444 is inserted in the through hole of driven wheel 440, also be provided with the caulking groove 4402 that is centered around described through hole periphery and coaxial setting on the end face of driven wheel 440, be inserted with the pressure load cover 445 that is used for increasing friction force between through-hole wall and the gear wheel shaft 444 in the described caulking groove 4402, pressure load cover 445 and described caulking groove 4402 all have the tapering that cooperatively interacts, it is dark more that thereby pressure load cover 445 inserts, through-hole wall can be pushed more tightly to gear wheel shaft 444, friction force is bigger each other.The described moving gear 442 of doing also is provided with perforation (figure does not indicate), be equipped with an installation shaft 443 in the described perforation, pressure load cover 445 also is placed on the described installation shaft 443, and also be arranged with spring 447 on the described installation shaft 443, one end of described spring 447 presses on the bulge loop 448 on the installation shaft 443, and the other end presses on the outer face of described pressure load cover 445 so that pressure load cover 445 is compacted in the caulking groove 4402.This power-transfer clutch can be realized the transmission of power equally when load is lower than standard, and loads when being above standard, and then make driven wheel 440 and driven gear 442 relative trackslipping, and it is less to wear and tear, and can effectively prolong life of clutch.

Claims

1. A vehicle rearview mirror electric actuator, comprising a shell with a spherical inner wall, an inner shell fixedly connected with the shell at a preset distance, an adapter and a driving device for driving the adapter, and the adapter includes a drive for The plate body supporting the rearview mirror and the spherical shell protruding from one side of the plate body in a hollow annular spherical shape, the spherical shell is movably clamped between the outer shell and the inner shell, and it is characterized in that: the outer wall of the inner shell A number of shrapnel elastically abutting against the inner shell and the spherical shell are evenly distributed between the inner wall of the spherical shell and the spherical shell.

2. The electric actuator for vehicle rearview mirror according to claim 1, characterized in that: the outer wall of the inner shell or the inner wall of the spherical shell is provided with a plurality of card slots, and the elastic pieces are locked in the card slots .

3. The electric actuator for vehicle rearview mirror according to claim 1, characterized in that: the inner wall of the housing is provided with a groove, and lubricating oil is injected into the groove.

4. The electric actuator for vehicle rearview mirror according to claim 3, characterized in that: the cross section of the groove is V-shaped.

5. The vehicle rearview mirror electric actuator according to claim 1, wherein the driving device includes a motor, a transmission gear set that is coupled with the output shaft of the motor, and a clutch that is connected with the transmission gear set. The output end of the clutch is matched with the gear rack fixed on the spherical shell.

6. The vehicle rearview mirror electric actuator according to claim 5, characterized in that: the clutch includes a drive gear that cooperates with the transmission gear and has a through hole in the middle, and a gear that cooperates with the rack on the spherical shell. A moving gear, one side of the moving gear is provided with a coaxial gear shaft, and an elastic hoop is nested on the gear shaft, and a positioning groove is arranged on the through hole wall of the driving gear, and the elastic hoop is along the The radial protrusion is provided with an engaging part that is correspondingly engaged in the positioning groove so that the elastic hoop is fixed relative to the driving gear in the circumferential direction.

7. The vehicle rearview mirror electric actuator according to claim 5, characterized in that: the clutch includes a drive gear that cooperates with the transmission gear set and has a through hole in the middle, and a drive gear that cooperates with the rack on the spherical shell. An actuating gear, one side of the actuating gear is provided with a coaxial gear shaft, and the gear shaft is inserted in the through hole of the driving gear, and the end surface of the driving gear is also provided with a A slot coaxially arranged, a pressure load sleeve for increasing the frictional force between the through hole wall and the gear shaft is inserted in the slot.

8. The vehicle rearview mirror electric actuator as claimed in claim 7, characterized in that: the actuating gear is also provided with a perforation, and a mounting shaft is perforated in the perforation, and the pressure load sleeve is also placed on the said perforation. On the installation shaft, and the installation shaft is also sleeved with a spring, one end of the spring is pressed against the protruding ring on the installation shaft, and the other end is pressed against the outer end surface of the pressure load sleeve to compress the pressure load The sleeve is pressed into the socket.

9 . The electric actuator for vehicle rearview mirror according to claim 5 , wherein the transmission gear set comprises a transmission gear cooperating with the output shaft of the motor and a worm fixed integrally with the first gear and arranged coaxially.