CN114274875A

CN114274875A - Frameless external rear-view mirror

Info

Publication number: CN114274875A
Application number: CN202111416531.5A
Authority: CN
Inventors: 张长奇; 李锋; 曹宝林
Original assignee: Magna Automotive Mirror Shanghai Co ltd
Current assignee: Magna Automotive Mirror Shanghai Co ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-04-05
Anticipated expiration: 2041-11-25
Also published as: CN114274875B

Abstract

The invention relates to a frameless external rearview mirror, which comprises a lens and a mirror leg, wherein the lens comprises a folding mechanism, a steering mechanism, a sealing structure and a base plate, a mirror shell covers the outermost part of the lens, the mirror leg penetrates through a hole below the mirror shell to be connected with the folding mechanism, and the opening of the mirror shell is provided with the sealing structure. The lens, the lens ring and the lens shell are combined to form the appearance of the frameless external rearview mirror, so that the space occupied by the traditional lens shell is saved, the size of a lens is reduced, and the front view range is enlarged; the vibration damping device arranged between the base plate and the mirror ring can weaken the vibration of the lens of the frameless external rearview mirror on a bumpy road section, improve the driving safety and prolong the service life of the external rearview mirror; an electric steering gear of the steering mechanism drives the whole lens to rotate, and is different from the traditional external rearview mirror that only the lens rotates; the sealing structure arranged at the opening of the mirror shell is an elastic sealing structure, so that rainwater, wind and dust can be effectively prevented from entering the lens, normal work of parts in the lens is influenced, and the reliability of the exterior rearview mirror is improved.

Description

Frameless external rear-view mirror

Technical Field

The invention relates to the technical field of automobile exterior rearview mirrors, in particular to a frameless exterior rearview mirror.

Background

When a driver drives an automobile to move forward, the driver can see the front and see the situation of the rear side of the automobile body through the rearview mirror, comprehensive judgment is made, and if the driver does not have the rearview mirror, the automobile can not be driven normally even, and the visible rearview mirror is very important for the automobile. The rear-view mirror generally has an inner rear-view mirror and an outer rear-view mirror, wherein the inner rear-view mirror reflects the rear and the inside of the automobile, and the outer rear-view mirror reflects the side and the rear.

The outer rearview mirrors are generally positioned on two sides in front of the vehicle body, and are usually mounted on vehicle doors. The outer mirror simply includes a lens and a mirror foot, the mirror foot is connected to the vehicle door or the vehicle body and located outside the vehicle door or the vehicle body, the lens is connected to the mirror foot, the lens is a generic term for components such as a mirror housing, a reflecting element, an actuator, and the like, and the lens can be folded in the direction of the vehicle body around the mirror foot.

As a transportation tool, the automobile firstly considers the safety reliability. However, with the popularization of automobiles, the automobile is no longer used as a travel tool, customers begin to pay attention to user experience (such as comfort and controllability) and attractive and fashionable appearance, and people pursue automobiles in various aspects to promote the rapid development of automobile related technologies. Also, the performance of the exterior mirror is directly related to driving safety, and the appearance directly affects human vision as an external part, and thus, the exterior mirror is also receiving attention. Therefore, the exterior rearview mirror needs to be developed, firstly, from the use of the exterior rearview mirror, a driver wants to enlarge the visual field range, which is beneficial to making correct judgment on the surrounding conditions of the automobile and ensuring safer driving; meanwhile, when encountering bumpy road sections such as mountain roads and the like, the external rearview mirror can still be normally used, so that the driving safety is ensured; secondly, from the reliability, the structure of the outer rearview mirror can prevent rainwater, wind and dust from entering the lens, and ensure the outer rearview mirror to work normally; and thirdly, in appearance, people pay more attention to whether the appearance of various products is attractive and fashionable in recent years, and the external rearview mirror is no exception. The prior art exterior rear view mirror is in need of improvement in all of the above three aspects.

Disclosure of Invention

In view of the above-mentioned drawbacks and deficiencies of the prior art, an object of the present invention is to provide a frameless exterior mirror, which provides a wider field of view, is adapted to a specific road section, and has good sealing performance, high safety and reliability, and an attractive appearance.

In order to solve the above technical problems, the present invention has the following configurations:

the frameless outside rearview mirror comprises a lens and a mirror leg, wherein the mirror leg is connected to the outside of a vehicle body, and the lens is connected with the mirror leg; the lens shell covers the outermost part of the lens, the lens legs penetrate through avoidance holes below the lens shell to be connected with the folding mechanism, and a sealing structure is arranged at the avoidance holes of the lens shell;

the steering mechanism comprises an electric steering gear, a mirror ring mounting plate, a mirror ring and lenses according to the arrangement sequence, adjacent parts are connected, a connecting plate of the electric steering gear is mounted on a base plate, a steering motor of the electric steering gear is rotatably connected with the connecting plate, a clamping pin of the steering motor penetrates through a corresponding clamping hole on the connecting plate to be clamped, and the steering motor drives the mirror ring mounting plate, the mirror ring, the lenses and a mirror shell to relatively fix the connecting plate to rotate in a certain angle in the direction limited by the clamping pin; the mirror shell is provided with an inner cavity, the back surface of the mirror ring is embedded into an opening of the inner cavity, the end surface of the opening of the inner cavity is tightly pressed on the back surface of the mirror ring, the external curve of the mirror shell is smoothly connected with the arc of the outer surface of the mirror ring, the lens is arranged on the bottom surface of the thin-wall shell wall on the front surface of the mirror ring to form a frameless external rearview mirror structure, and the mirror ring mounting plate, the electric steering gear, the substrate and the folding mechanism are contained in the mirror shell; the folding mechanism comprises a pin shaft and a folding motor, the pin shaft is a long shaft-shaped part and comprises a head part and a rod part, the head part is fixedly arranged on the glasses legs, the rod part of the pin shaft is rotatably connected with the folding motor, the folding motor can rotate around the fixed pin shaft, the folding mechanism is arranged in a cavity of the substrate, the folding motor is fixedly connected with the substrate, and a through hole is formed in the upper part of the cavity and is used for the pin shaft part to pass through. The pin shaft is axially fixed, and the folding motor drives the substrate and then drives the steering mechanism on the substrate and the mirror shell to rotate around the pin shaft together, so that the folding action of the exterior rearview mirror is realized; the sealing structure is arranged between the lens shell and the pin shaft and is elastic sealing, and when the lens is turned or folded, the sealing structure can stretch along with the lens.

The frameless outside rear view mirror also comprises a vibration damper which is arranged between the base plate and the mirror ring mounting plate of the steering mechanism and reduces the vibration of the outside rear view mirror in a mode that the space formed by the upper inner wall and the lower inner wall of the groove limits the displacement of the convex structure accommodated in the space.

Mirror ring mounting panel sets up bellied pivot portion towards base plate one side, pivot portion appearance is cavity structures, the cavity opening is towards the base plate, two chamber wall support installation circle axles, the circle axle does not rotate, set up the rectangular shape limiting plate that stretches to pivot portion on the base plate, limiting plate surface perpendicular to circle axle line, open the groove in the middle of the limiting plate and form two elongated teeth from top to bottom, elongated tooth inserts in the cavity of pivot portion, the circle axle traversing simultaneously leads to the groove, lead to the upper and lower side restriction circle axle's of groove upper and lower displacement.

A limiting structure is arranged between a pin shaft of the folding mechanism and the substrate, an L-shaped limiting block is protruded at the side edge of the annular surface of the pin shaft, a limiting ring is arranged at the lower part of the substrate, the limiting block is positioned in a groove limited by the limiting ring, and when the substrate rotates in the positive and negative directions until the two ends of the limiting ring are respectively contacted with the limiting block of the fixed pin shaft, the limiting block prevents the substrate from continuing rotating.

When the pin shaft rod part is axially fixed with the substrate, the end part of the pin shaft rod part is sequentially sleeved with a spring, a gasket and a clamp spring, the spring is in contact with the surface of the substrate, the clamp spring is positioned at the tail end of the rod part, and when the substrate rotates around the pin shaft, the elasticity of the spring acts on the substrate.

In the folding mechanism, a plurality of trapezoidal teeth are uniformly distributed on the circumference of the annular surface of the head part of the pin shaft, the side surface of each trapezoidal tooth is an inclined surface, a plurality of trapezoidal grooves are uniformly formed in the circumference of the lower end surface of the folding disc part of the folding motor, the trapezoidal teeth are clamped into the trapezoidal grooves and transmit resistance, the pin shaft blocks the rotation of the folding disc part, and the rotating part of the folding motor drives the substrate to rotate around the folding disc part and the pin shaft.

In the steering mechanism, a steering motor central shaft and a connecting plate central hole are matched in a spherical manner, two pairs of clamping pins extend out of one side of the connecting plate towards the steering motor, each pair of clamping pins are symmetrically arranged relative to the steering motor central shaft, a connecting line of each pair of clamping pins is an axis for steering the lens, two axes formed by the two pairs of clamping pins determine two rotating directions of the lens, the clamping pins penetrate through four corresponding clamping holes in the connecting plate, the clamping holes limit the end parts of the clamping pins not to be reversely separated, and the clamping pins have certain lengths and provide certain rotating space for the steering motor.

The mirror shell is divided into an upper part and a lower part, the lower part is an auxiliary mirror shell, the upper part is a decorative cover, the auxiliary mirror shell is fixed on the mirror ring mounting plate, the lower end face and the front end face of the decorative cover are respectively fastened on the auxiliary mirror shell and the mirror ring, and the decorative cover and the auxiliary mirror shell enclose an inner cavity.

The sealing structure comprises a sealing ring, a sealing flange and a pressing sleeve, the sealing ring is of a shaft sleeve-shaped structure, the sealing ring is sleeved on a pin shaft, the lower part of the sealing ring is in contact with a mirror foot, labyrinth seal is formed between an inner hole of the sealing ring and the pin shaft as well as the mirror foot, the sealing flange is made of soft materials, the lip edge of the sealing flange is fixed on the sealing ring, the flat cushion part of the sealing flange is fixed on a mirror shell through the pressing sleeve, the corrugated connector formed by repeatedly folding the wrinkle part of the connecting lip edge and the flat cushion part is provided with a large telescopic amount, and the sealing flange enables the sealing structure to form elastic connection between the mirror shell and the pin shaft.

The mirror foot is the support subassembly, and the support subassembly includes support and support guard shield, support and body connection, and the support has bellied cylindrical spliced pole towards the automobile body outside one side, and the interior circular constant head tank with the axle center of opening of spliced pole, round pin axle head hold in the constant head tank and fix in the constant head tank bottom, and the open hole intercommunication is in order to hold the pencil of connecting lens and automobile body to the constant head tank bottom and round pin axle inside, and the support guard shield covers in the support outside, and the support is fixed a position the support guard shield.

Compared with the prior art, the invention has the advantages that:

the frameless rearview mirror saves the space occupied by the outer eave type mirror shell of the traditional mirror, can increase the area of the mirror, enlarge the rear view, or reduce the size of the lens, enlarge the front view range, enable a driver to have wider view and improve the driving safety.

The vibration damping device of the frameless rearview mirror can weaken the vibration of the lens of the frameless external rearview mirror on a bumpy road section, improves the safety of the driving process and can prolong the service life of the external rearview mirror.

The electric steering gear of the steering mechanism drives the whole lens to rotate, and is different from the traditional outer rearview mirror that only the lens rotates, and the novel steering mechanism can meet the requirement of the frameless outer rearview mirror.

The sealing structure is an elastic sealing structure, can effectively prevent rainwater, wind and dust from entering the lens, and is very suitable for the conditions that the whole lens of the frameless external rearview mirror is folded and turned.

The outer arcs of the frameless outer rearview mirror are smoothly connected, so that the frameless outer rearview mirror has more attractive and fashionable appearance.

Drawings

The following drawings are used to more clearly illustrate the technical solutions of the present invention, and it should be understood that the following drawings only show some embodiments of the present invention and should not be construed as limiting the present invention.

FIG. 1: the outline of the frameless external rearview mirror of the invention;

FIG. 2: the invention relates to an internal structure diagram of a removable decorative cover of a frameless external rearview mirror;

FIG. 3: an exploded view of the structure of the frameless exterior mirror of the present invention;

FIG. 4: the invention relates to a perspective view of a pin shaft of a frameless external rearview mirror;

FIG. 5: a perspective view of a substrate of the frameless exterior mirror of the present invention;

FIG. 6: the invention relates to a limit structure diagram of a folding mechanism of a frameless external rearview mirror;

FIG. 7: a perspective view of the electric driver of the frameless exterior mirror of the present invention;

FIG. 8: the invention relates to a stereoscopic view of a mirror ring mounting plate and a mirror ring of a frameless exterior rearview mirror;

FIG. 9: a perspective view of a sealing structure of the frameless exterior mirror of the present invention;

FIG. 10: the invention relates to a section view of a sealing structure of a frameless external rearview mirror;

FIG. 11: the invention discloses a three-dimensional view of a vibration damper of a frameless external rearview mirror.

Detailed Description

The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.

As shown in fig. 1, the frameless external rear view mirror includes a lens and a leg.

As shown in fig. 2, the lens of the frameless external rear view mirror of the present invention includes a folding mechanism 200, a steering mechanism 300, a sealing structure 400 and a mirror housing 350, the folding mechanism 200 and the steering mechanism 300 share a base plate 100, the folding mechanism 200 is longitudinally arranged, the steering mechanism 300 is installed at one lateral side of the base plate 100, and the folding mechanism 200 and the steering mechanism 300 respectively realize folding and up-down, left-right steering of the lens.

The temple is a stand assembly 500 (see fig. 1), the stand assembly 500 is attached to the door or the exterior of the vehicle body,

referring to fig. 2, the mirror housing 350 covers the outermost portion of the lens, the stand assembly 500 is connected to the folding mechanism 200 through a relief hole 355 below the mirror housing 350, and a sealing structure 400 is disposed at the relief hole 355 of the mirror housing 350 to prevent wind, rain and contaminants from entering the inside of the lens.

The structure of the support assembly 500 is shown in fig. 3, the support assembly 500 comprises a support 510 and a support shield 520, the support 510 is connected with a vehicle body, the support shield 520 covers the outside of the support 510, and the support 510 positions the support shield 520.

Specifically, one side of the support 510 facing the outside of the vehicle body is provided with a convex cylindrical connecting column 511, a coaxial circular positioning groove 512 is formed in the connecting column 511, the head portion 211 of the pin shaft 210 is accommodated in the positioning groove 512 and fixed at the bottom of the positioning groove 512, and the bottom of the positioning groove 512 is communicated with a through hole formed in the pin shaft 210 so as to accommodate a wiring harness for connecting a lens and the vehicle body.

The support shield 520 is a thin-wall shell structure, the shape of the shell is bent inwards along the outline of the vehicle body, a raised cylindrical collar 521 is arranged on the outer side surface, the support shield 520 covers the outer side of the support 510, meanwhile, the inner hole of the collar 521 is sleeved on the periphery of a connecting column 511 of the support 510, and the connecting column 511 of the support 510 is positioned by limiting the collar 521 of the support shield 520. The support shield 520 not only shields the support 510 to make the joint of the mirror foot and the lens more beautiful, but also shields the joint of the support 510 and the vehicle body to prevent wind and rain from entering the vehicle body.

Continuing to refer to fig. 3, attached above the support 510 is the folding mechanism 200.

The folding mechanism 200 comprises a pin 210 and a folding motor 220, and the pin 210 of the folding mechanism 200 is connected with a support 510.

As shown in fig. 4, the pin 210 is a long shaft-shaped component, and includes a head portion 211 and a shaft portion 212, wherein the head portion 211 is stepped and thicker, and the shaft portion 212 is thinner. Optionally, a through hole is provided in the pin 210 for positioning the rearview mirror harness.

As shown in fig. 3, a shaft hole 222 is formed in the middle of the folding disk part 221 of the folding motor 220, the shaft part 212 of the pin 210 is received through the shaft hole, and the other side of the folding motor 220 is a rotating part 223 connected to the base plate 100.

Referring to fig. 3 and 10, the pin 210 is vertically disposed, the top end of the head 211 is located in the positioning groove 512 of the support 510 and fixed on the support 510, the rod 212 of the pin 210 fixed against rotation passes through the shaft hole 222 of the folding disk part 221 of the folding motor 220, the trapezoidal teeth and the trapezoidal grooves are disposed between the annular end surfaces of the pin 210 and the folding disk part 221, which are in contact, so that the pin 210 blocks the rotation of the folding disk part 221 of the folding motor 220, that is, the folding disk part 221 is also fixed against rotation, and the rotating part 223 of the folding motor 220 rotates around the folding disk part 221 and the pin 210.

Specifically, referring to fig. 4 and 10, a plurality of trapezoidal teeth (forming simultaneously spaced trapezoidal grooves) are uniformly distributed on the circumference of the annular surface 215 of the head portion 211 of the pin shaft 210, the upper bottom and the lower bottom of the trapezoid are arcs of the outer circumference of the shaft portion 212 and the outer circumference of the head portion 211 respectively, and the side surface of the trapezoid is preferably an inclined surface. A plurality of trapezoidal grooves (a plurality of spaced trapezoidal teeth are formed simultaneously) are uniformly formed in the circumference of the lower end face of the folding disc, and the trapezoidal grooves and the trapezoidal teeth are mutually clamped and matched to transmit power or resistance.

The trapezoidal teeth of the head 211 of the pin shaft 210 are equal to the trapezoidal grooves of the folding motor 220 in number, and the size and the depth are adaptive.

In one embodiment, a threaded hole is formed in the end surface of the head 211 of the pin 210, a hole is formed in the support 510, and a fastener secures the head 211 of the pin 210 to the support 510.

As shown in fig. 2, the folding mechanism 200 is installed in the base plate 100.

As shown in fig. 5, a cavity having a shape corresponding to the shape of the folding motor 220 is formed below the base plate 100, a partition plate 110 is disposed above the cavity for accommodating the folding disk part 221 of the folding motor 220, and a hole is formed in the partition plate 110 at a position corresponding to the shaft hole 222 of the folding motor 220 for the pin shaft 210 to pass through. Referring to fig. 10, the folding mechanism 200 is installed in a cavity below the substrate 100, the rotating part 223 of the folding motor 220 is fixed on the substrate 100, the rod part 212 of the pin 210 upwardly passes through a hole of the partition 110 of the substrate 100, and the upper end of the rod part 212 of the pin 210 is provided with a snap spring 219 for axially limiting the pin 210. After the mounting is completed, the folding motor 220 drives the rotating portion 223 thereof to rotate the substrate 100 around the folding disk part 221 and the pin 210.

Optionally, referring to fig. 3 and 10, the end of the rod portion 212 of the pin 210 is sequentially sleeved with a spring 217, a gasket 218 and a snap spring 219, the spring 217 is in contact with the upper surface of the partition 110 of the substrate 100, and the snap spring 219 is located at the extreme end of the rod portion 212, so that when the substrate 100 rotates around the pin 210, the elastic force of the spring 217 acts on the partition 110 of the substrate 100, and has a certain pressure on the substrate 100, so as to generate a damping effect, which can slow down the rotation speed of the substrate 100 and increase the stability of the folding process.

As an embodiment, a screw hole and a through hole are formed in the rotating part 223 of the folding motor 220 and the base plate 100, and the two are coupled using a fastener.

The folding angle of the lens, i.e. the extreme position of the folding action, is defined by the limiting structure 230 disposed between the pin 210 and the substrate 100. Referring to fig. 4, 5, and 6, an L-shaped stopper 214 protrudes from a side edge of the annular surface of the pin 210, the lower portion of the substrate 100 is provided with a stopper ring 120, the stopper 214 is located in a groove defined by the stopper ring 120, when the substrate 100 is folded and rotated, the substrate 100 is rotated in the forward and reverse directions until two end walls of the stopper ring 120 respectively contact the stopper 214 of the fixed pin 210, the stopper 214 prevents the substrate 100 from continuing to rotate, so that the stopper 214 on the pin 210 limits the rotation range of the lens by limiting the substrate 100, that is, the folding angle of the lens is limited.

Returning to fig. 3, the steering mechanism 300 is attached laterally to the left side of the base plate 100,

the steering mechanism 300 comprises an electric steering gear 310, a mirror ring mounting plate 320, a mirror ring 330 and a lens 340 which are arranged in sequence, and adjacent parts are connected.

The electric power steering 310 is an actuator of the steering mechanism 300 for driving the mirror plate 340 to steer up and down or left and right to change the angle of the mirror plate 340.

Referring to fig. 7, the electric power steering apparatus 310 includes a steering motor 311 and a connection plate 312, the connection plate 312 is mounted in the covering case 130 of the base plate 100 (see fig. 3) through holes at four corners by fasteners, and the connection plate 312 and the base plate 110 are fixed without being turned with the lens 340 during the turning of the lens 340.

The central shaft of the steering motor 311 extends into the central hole of the connecting plate 312, and the shaft end and the hole are in spherical surface fit, so that the steering motor 311 and the connecting plate 312 are in spherical surface rotatable connection.

Continuing to refer to fig. 7, the steering motor 311 extends two pairs of clamping feet 313 towards one side of the connecting plate 312, each pair of clamping feet 313 is symmetrically arranged relative to the central axis of the steering motor 311, the connecting line of each pair of clamping feet 313 is an axis of the lens steering, and two axes formed by the two pairs of clamping feet 313 determine two rotation directions of the lens. The clamping pins 313 penetrate through the corresponding four clamping holes 314 in the connecting plate 312, the clamping holes 314 limit the end parts of the clamping pins 313 from reversely falling out, and because the clamping pins 313 have a certain length and provide a certain rotating space for the steering motor 311 instead of being completely fixed, the clamping pins 313 are connected with the clamping holes 314, so that the steering motor 311 drives the mirror ring mounting plate 320, the mirror ring 330, the mirror lens 340 and the mirror shell 350 to rotate in a certain angle in the direction defined by the clamping pins 313 relative to the connecting plate 312.

The position of the locking pin 313 on the steering motor 311 is set according to the required direction of the lens rotation, and if the locking pin 313 is set at four corners as shown in fig. 7, the steering motor 311 drives the lens to rotate within a certain angle range in the up-down or left-right directions.

The steering motor 311 is preferably a stepper motor.

Continuing to refer to fig. 3, a rim mounting plate 320 is mounted on the steering motor 311 on the other side of the connecting plate 312.

As can be seen from the mirror ring mounting plate 320 in fig. 3 and 8, the mirror ring mounting plate 320 is provided with a raised edge wall 322 along the side line toward the mirror ring 330, and the edge wall 322 and the bottom plate are slotted at some positions to avoid the raised structure of the mirror ring 330.

Four round platforms 321 are protruded on the mirror ring mounting plate 320 in fig. 8, threaded holes are formed in the round platforms 321, and the round platforms 321 are inserted into four counter bores 315 on the steering motor 311 in fig. 7 and are connected with each other by fasteners. Other detachable connections may be used.

Continuing to see fig. 3, on the left side of bezel mounting plate 320 is bezel 330. bezel 330 has a similar outer contour to bezel mounting plate 320, but is one turn larger in size. The side of the rim 330 on which the lenses 340 are mounted is the rim front 331, and the other side is the rim back 332.

Referring to fig. 8, the mirror ring back 332 is provided with a thin sidewall enclosure 333 protruding outwards, the enclosure 333 has a shape similar to the outer contour of the mirror ring 330, but a wide edge is retracted into the edge line of the mirror ring 330, the enclosure 333 is a whole circle or an intermittent distribution, the edge wall 322 of the mirror ring mounting plate 320 is embedded into the enclosure 333 of the mirror ring 330, and the mirror ring mounting plate 320 is hidden in the mirror housing 350.

A plurality of raised buckles 334 are arranged along the enclosing wall 333, the buckles 334 extend into the buckle holes 324 of the mirror ring mounting plate 320 for clamping, and can not be separated from the mirror ring mounting plate 320 in the reverse direction, and the mirror ring 330 is clamped on the mirror ring mounting plate 320.

Other detachable connections between the bezel 330 and the bezel mounting plate 320 can also be used, such as fasteners.

Referring to fig. 3 again, the front 331 of the mirror ring is a housing structure, a wall 335 for accommodating the lens 340 is surrounded, the lens 340 is adhered to the bottom surface of the wall 335, and the side of the wall 335 is covered on the outside of the lens 340, so that the side of the wall 335 is thin, thereby forming a frameless structure of the lens 340.

Optionally, the outer surface of the side of the housing wall 335 is rounded for aesthetic reasons.

Referring to fig. 3, the lens 340 is adhered to the bottom surface of the housing wall 335 of the front surface 331 of the mirror ring, or a heating plate 360 is disposed between the lens 340 and the mirror ring 330, and the heating plate 360 and the lens 340 are adhered to the mirror ring 330 in sequence. The adhesive can be glass adhesive or double-sided adhesive.

The lens 340, the lens ring 330 and the lens ring mounting plate 320 have similar outline shapes and different sizes.

In order to protect the above mechanism, and in consideration of the beauty of the exterior rear view mirror, the mirror housing 350 is provided at the outermost portion of the exterior rear view mirror.

Referring to fig. 3, the mirror housing 350 has a smooth outer curve, the mirror housing 350 is divided into an upper portion and a lower portion, the lower portion is a sub-mirror housing 351, the upper portion is a decorative cover 352, and the decorative cover 352 and the sub-mirror housing 351 enclose an inner cavity 353.

Referring to fig. 3 and fig. 2, the sub-mirror housing 351 is fixed to the mirror ring mounting plate 320, and specifically, a mounting portion 354 protruding from the inside of the sub-mirror housing 351 is connected to the mirror ring mounting plate 320 by a fastener toward the motor side. The decorative cover 352 is fastened at its lower end surface and front end surface to the sub-mirror housing 351 and the mirror ring 330, respectively. At this time, the enclosing wall 333 of the mirror ring back 332 is just embedded into the opening of the inner cavity 353, the end face of the opening of the inner cavity 353 is pressed against the mirror ring back 332, the outermost side line of the mirror housing 350 is overlapped with the outer side line of the mirror ring 330, and the outer curve of the mirror housing 350 is smoothly connected with the arc of the outer surface of the housing wall 335 of the mirror ring 330. In addition, the installation structure of the lens forms the beautiful appearance of the frameless external rearview mirror. Under the structure, the space occupied by the outer eave type lens shell of the traditional lens is saved, so that the area of the lens 340 can be increased, or the space occupied by the outer rearview mirror is reduced, and the front visual field range is enlarged.

The mirror housing 350 accommodates therein the mirror ring mounting plate 320, the electric power steering 310, the base plate 100, and the folding mechanism 200.

Typically, as shown in fig. 3, a turn signal lamp 370 is also interposed between the sub-mirror case 351 and the decorative cover 352.

The angle of rotation of the steering mechanism 300 is preferably 8 to 10 degrees. The above-described angle range can be satisfied by controlling the rotation angle of the steering motor 311.

In the steering mechanism 300, the steering motor 311 drives the mirror ring mounting plate 320 to drive the mirror ring 330 and the mirror sheet 340 to rotate up and down and left and right, and the mirror housing 350 is connected with the mirror ring mounting plate 320 and the mirror ring 330, so that the mirror housing 350 rotates together with the mirror sheet 340. In contrast to the conventional exterior rear view mirror, the mirror housing 350 is fixed, and the lens 340 rotates relative to the mirror housing 350, which better meets the requirement of turning the lens of the frameless exterior rear view mirror. In addition, the side wall 322 of the mirror ring mounting plate 320 is clamped into the enclosing wall 333 of the mirror ring 330, the enclosing wall 333 of the mirror ring 330 is embedded into the opening of the inner cavity 353 of the enclosing wall of the mirror shell 350, the parts are tightly connected, the sealing performance is good, and the beautiful outline of the frameless exterior rearview mirror is formed.

In summary, the head 211 of the pin 210 of the folding mechanism 200 is fixed to the support 510, the rod 212 of the pin 210 is rotatably connected to the folding motor 220 and the substrate 100, the folding motor 220 is connected to the substrate 100 and rotates around the pin 210, and the steering mechanism 300 is installed on the substrate 100 in the transverse direction, so that the folding motor 220 drives the substrate 100 and drives the steering mechanism 300 to rotate around the pin 210, thereby realizing the folding action of the exterior mirror. The turning of the mirror 340 of the exterior rear view mirror is accomplished by the turning mechanism 300 described above.

As can be seen from the above description of the structure of the frameless exterior rear view mirror, the mirror housing 350 is moved along with the rear view mirror when the rear view mirror is folded and turned, so the sealing structure 400 between the mirror housing 350 and the stand assembly 500 is of great importance.

As shown in fig. 2 and 9, in particular, the sealing structure 400 of the frameless exterior mirror is disposed between the avoiding hole 355 (see fig. 9 and 10) of the sub-mirror housing 351 and the pin 210.

As shown in fig. 9 and 10, the sealing structure 400 includes a sealing ring 410, a sealing flange 420, and a pressing sleeve 430.

The sealing ring 410 is a short shaft sleeve with a flange edge, a stepped through hole is formed in the sealing ring 410, a small-diameter hole of the stepped through hole is sleeved on the pin shaft 210 and is in clearance fit with the neck 213 of the pin shaft 210, a large-diameter inner hole of the stepped through hole is sleeved outside the ferrule 521 of the support shield 520, the bottom surface of the large-diameter inner hole contacts the upper end surface of the ferrule 521 in the central axial direction of the sealing ring 410, the upper end surface of the sealing ring 410 contacts the shaft shoulder of the pin shaft 210, and the sealing ring 410 is limited between the pin shaft 210 and the support shield 520. Thus, the stepped through bore of seal ring 410 forms a labyrinth seal with the gap between support shield 520 and pin 210.

The sealing flange 420 is made of soft materials and is of a special-shaped structure, the lip edge 421 of the sealing flange 420 is sleeved and fixed outside the sealing ring 410, the flat cushion part 422 of the sealing flange 420 is flatly paved on the inner surface of the mirror shell 350 and is fixed in the auxiliary mirror shell 351 through the pressing sleeve 430, the corrugated part 423 for connecting the lip edge 421 and the flat cushion part 422 is a wavy connecting body formed by repeatedly folding the soft materials, the corrugated part 423 can be freely folded, the large expansion amount is achieved, the elastic connection effect is achieved, and the sealing flange 420 enables the sealing structure to form elastic connection between the auxiliary mirror shell 351 and the pin shaft 210.

In one embodiment, the sealing ring 410 is preferably made of engineering plastic and is formed by injection molding, the sealing flange 420 is made of rubber, and the sealing ring 410 and the sealing flange 420 are integrally connected through two-step injection molding.

As another example, the sealing ring 410 and the sealing flange 420 may be connected using a tie.

As shown in fig. 9 and 10, the fixing manner of the sealing flange 420 is as follows: the corresponding positions of the pressing sleeve 430, the sealing flange 420 and the mirror shell 350 are all provided with fixing parts 440, the fixing parts 440 are small cylinders with bulges on the parts, cavities are formed in the small cylinders of the pressing sleeve 430 and the sealing flange 420, threaded holes are formed in the small cylinders on the mirror shell 350, and after the pressing sleeve 430, the sealing flange 420 and the fixing parts 440 of the mirror shell 350 are sleeved from top to bottom, the pressing sleeve 430 and the sealing flange 420 are fixed on the auxiliary mirror shell 351 by fasteners.

Further, the shape of the flat pad portion 422 of the sealing flange 420 and the shape of the pressing sleeve 430 are changed according to the shape of the inner surface of the sub-mirror housing 351, so that the three portions are closely attached to each other to better ensure the sealing effect.

The material of the pressing sleeve 430 is preferably engineering plastic.

In the sealing structure 400, when the lens part of the frameless external rear-view mirror is folded around the pin shaft 210, the sealing ring 410 is in clearance fit with the pin shaft 210, so that the sealing structure 400 is folded and rotates along with the mirror shell 350, and the labyrinth seal formed between the sealing ring 410 and the pin shaft 210 and the sealing flange 420 are not influenced in the rotation process of the lens component; when the frameless external rearview mirror steering mechanism 300 drives the mirror piece 340 to turn upwards and downwards, the mirror shell 350 also turns upwards or downwards, one side of the folded part 423 of the sealing flange 420 is pulled apart and the other side is extruded along with the action of the mirror shell 350, and when the mirror shell 350 returns to the initial position, the sealing flange 420 returns to the initial state; when the steering mechanism 300 drives the mirror plate 340 to turn left and right, the mirror housing 350 is twisted left and right, the sealing flange 420 is pulled to be twisted, and when the mirror housing 350 returns to the initial position, the sealing flange 420 returns to the initial state. In the dynamic process, the sealing flange 420 can elastically change along with the movement of the lens, and has a large expansion amount, so that the advantage of elastic connection of the sealing flange 420 is fully embodied, that is, the sealing structure 400 always keeps a good sealing effect as when being static.

As can be seen from the structure and connection manner of the frameless exterior rear view mirror, the steering motor 311, the mirror ring mounting plate 320, the mirror ring 330, the mirror lens 340 and the mirror housing 350 in the steering mechanism 300 are fixed as a whole and can rotate relative to the base plate 100, but are not completely fixed, so when a vehicle runs on a bumpy road section, the components can shake along with the up-and-down fluctuation of the vehicle, mainly appearing as vertical vibration, and in order to reduce the influence of the vibration on a driver, the vibration damping device 600 is provided in the present invention.

As shown in fig. 11, the vibration damping device 600 is provided between the base plate 100 and the rim mounting plate 320 of the steering mechanism 300, and reduces the vibration of the exterior mirror in such a manner that the space formed by the upper and lower inner walls of the groove provided restricts the displacement of the boss structure accommodated in the space.

Specifically, as shown in fig. 11, a raised rotating shaft portion 325 is disposed on the mirror ring mounting plate 320 of the steering mechanism 300 toward the side of the substrate 100, the rotating shaft portion 325 is in a cavity structure of a pointed house shape without an upper cover, the cavity opening faces the substrate 100, two cavity walls support and mount a circular shaft, the circular shaft does not rotate, meanwhile, a long strip-shaped limiting plate 140 extending to the rotating shaft portion 325 is disposed on the substrate 100, the surface of the limiting plate 140 is perpendicular to the axis of the circular shaft, an opening groove in the middle of the limiting plate 140 forms an upper elongated tooth and a lower elongated tooth, the elongated teeth are inserted into the cavity of the rotating shaft portion 325, the circular shaft transversely penetrates through the through groove, and the upper side edge and the lower side edge of the groove limit the vertical displacement of the circular shaft. The stopper plate 140 on the base plate 100 reduces the vibration of the lens by restricting the displacement of the rim mounting plate 320.

The vibration damping device 600 can weaken the vibration of the lens of the frameless external rear-view mirror on a bumpy road section, improves the safety of the driving process, and simultaneously avoids possible damage to parts and connecting parts of the external rear-view mirror due to severe vibration, which is very important for the frameless external rear-view mirror.

In summary, the frameless rear view mirror of the present invention has the following advantages:

1. the mirror shell 350 has a smooth and fluent outer curve, a cavity 353 is formed in the mirror shell 350, the back 332 of the mirror ring is embedded into the opening of the cavity 353, the end face of the opening of the cavity 353 is tightly pressed on the back 332 of the mirror ring, the outermost side line of the mirror shell 350 is overlapped with the outer side line of the mirror ring 330, the outer curve of the mirror shell 350 is smoothly connected with the arc of the outer surface of the wall 335 of the mirror ring 330, the mirror ring mounting plate 320, the electric steering gear 310, the substrate 100 and the folding mechanism 200 are accommodated in the mirror shell 350, and the lens 340 is adhered to the bottom surface of the thin-wall 335 of the mirror ring front 331. The structure combination forms the appearance of the frameless external rearview mirror. Under this kind of structure, saved the space that traditional lens outside room eaves formula mirror shell occupied, alright in order to increase the area of lens 340, or reduce the camera lens size, enlarge the place ahead field of vision scope, make the driver have a wider field of vision, the driver has better driving experience, more importantly has improved driving safety.

2. The vibration damping device 600 between the substrate 100 and the mirror ring mounting plate 320 can weaken the vibration of the lens of the frameless external rear view mirror on a bumpy road section, enhance the stability of the external rear view mirror, ensure the normal operation of the external rear view mirror when a vehicle bumps, improve the safety of the driving process, avoid possible damage to parts and connecting parts of the external rear view mirror due to violent vibration, and prolong the service life of the external rear view mirror.

3. When the pin shaft 210 is connected with the substrate 100, the end part of the rod part 212 of the pin shaft 210 is sleeved with the spring 217, the gasket 218 and the snap spring 219 in sequence, the spring 217 is in contact with the substrate 100, when the substrate 100 rotates around the pin shaft 210, the elastic force of the spring 217 acts on the partition plate 110 of the substrate 100, a certain damping effect is provided for the substrate 100, the rotating speed of the substrate 100 can be reduced, and the stability of the folding process is improved.

4. The electric steering gear 310 of the steering mechanism 300 of the present invention drives the whole lens to rotate, and the new steering mechanism can meet the requirement of the frameless external rear view mirror, unlike the traditional external rear view mirror which only rotates the lens.

5. Because the lens of the frameless external rear-view mirror of the invention can move along with the lens 350 when turning and folding, compared with the difference that the lens 350 of the external rear-view mirror in the prior art does not turn along with the lens 340, the sealing structure 400 arranged at the avoiding hole 355 of the lens 350 of the invention has larger expansion amount because the sealing flange 420 can elastically change along with the movement of the lens in the dynamic process of the movement of the lens 350, fully embodies the advantage of elastic connection of the sealing flange 420, the sealing structure 400 always keeps good sealing effect as the static state, effectively prevents rain, wind and dust from entering the lens, and is very suitable for the frameless external rear-view mirror.

6. The outer arcs of the frameless outer rearview mirror are smoothly connected, so that the frameless outer rearview mirror has more attractive and fashionable appearance.

The above embodiments are merely illustrative of the present invention and are not to be construed as limiting the invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions may be made in the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention should be covered in the scope of the claims of the present invention.

Claims

1. A frameless external rear view mirror comprising a lens and a mirror foot, wherein the mirror foot is connected to the outside of a vehicle body, the lens is connected with the mirror foot, the frameless external rear view mirror is characterized in that the lens comprises a folding mechanism (200), a steering mechanism (300), a sealing structure (400) and a mirror shell (350), the folding mechanism (200) and the steering mechanism (300) share a base plate (100), the folding mechanism (200) is longitudinally arranged, and the steering mechanism (300) is installed on one side of the base plate (100) in the transverse direction;

the lens shell (350) covers the outermost part of the lens, the lens legs penetrate through an avoidance hole (355) below the lens shell (350) to be connected with the folding mechanism (200), and the sealing structure (400) is arranged at the avoidance hole (355) of the lens shell (350);

the steering mechanism (300) sequentially comprises an electric steering gear (310), a mirror ring mounting plate (320), a mirror ring (330) and a mirror lens (340), adjacent parts are connected, a connecting plate (312) of the electric steering gear (310) is mounted on the base plate (100), a steering motor (311) of the electric steering gear (310) is rotatably connected with the connecting plate (312), a clamping pin (313) of the steering motor (311) penetrates through a corresponding clamping hole (314) in the connecting plate (312) to be clamped, and the steering motor (311) drives the mirror ring mounting plate (320), the mirror ring (330), the mirror lens (340) and the mirror casing (350) to be relatively fixed together, so that the connecting plate (312) rotates within a certain angle in the direction limited by the clamping pin (313);

the mirror shell (350) is provided with an inner cavity (353), the back surface (332) of the mirror ring is embedded into the opening of the inner cavity (353), the end surface of the opening of the inner cavity (353) is pressed on the back surface (332) of the mirror ring, the external curve of the mirror shell (350) is smoothly connected with the arc of the outer surface of the mirror ring (330), the lens (340) is installed on the bottom surface of a thin-wall shell wall (335) of the front surface (331) of the mirror ring to form a frameless exterior rear view mirror structure, and the mirror shell (350) accommodates the mirror ring installation plate (320), the electric steering gear (310), the base plate (100) and the folding mechanism (200);

the folding mechanism (200) comprises a pin shaft (210) and a folding motor (220), wherein the pin shaft (210) is a long shaft

The foldable mirror comprises a head part (211) and a rod part (212), wherein the head part (211) is fixedly installed on the mirror leg, the rod part (212) of the pin shaft (210) is rotatably connected with the foldable motor (220), the foldable motor (220) can rotate around the fixed pin shaft (210), the foldable mechanism (200) is installed in a cavity of the substrate (100), the foldable motor (220) is fixedly connected with the substrate (100), a through hole is formed in the upper part of the cavity, so that the rod part (212) of the pin shaft (210) can penetrate through the through hole and the pin shaft (210) can be axially fixed, and the foldable motor (220) drives the substrate (100) to drive the steering mechanism (300) on the substrate (100) and the mirror shell (350) to rotate around the pin shaft (210) together so as to realize the folding action of the outer rearview mirror;

the sealing structure (400) is arranged between the lens shell (350) and the pin shaft (210) and is elastically sealed, and when the lens is turned or folded, the sealing structure (400) can stretch and retract along with the lens.

2. The frameless exterior rear view mirror of claim 1, further comprising a vibration damping device (600), the vibration damping device (600) being disposed between the base plate (100) and the bezel mounting plate (320) of the steering mechanism (300) to reduce the vibration of the exterior rear view mirror in such a manner that the space formed by the upper and lower inner walls of the groove limits the displacement of the boss structure accommodated in the space.

3. The frameless exterior rear view mirror according to claim 2, wherein the mirror ring mounting plate (320) is provided with a raised rotating shaft portion (325) towards one side of the base plate (100), the rotating shaft portion (325) is shaped like a cavity, the opening of the cavity faces towards the base plate (100), two cavity walls support and mount a circular shaft, the circular shaft does not rotate, the base plate (100) is provided with an elongated limiting plate (140) extending towards the rotating shaft portion (325), the surface of the limiting plate (140) is perpendicular to the axis of the circular shaft, an opening groove in the middle of the limiting plate (140) forms an upper elongated tooth and a lower elongated tooth, the elongated teeth are inserted into the cavity of the rotating shaft portion (325), and meanwhile, the circular shaft transversely passes through the through groove, and the upper side edge and the lower side edge of the through groove limit the upper displacement and the lower displacement of the circular shaft.

4. The frameless exterior rear view mirror of claim 1, wherein a limiting structure (230) is disposed between the pin (210) and the base plate (100) of the folding mechanism (200), an L-shaped limiting block (214) protrudes from a side edge of an annular surface (215) of the pin (210), a limiting ring (120) is disposed on a lower portion of the base plate (100), the limiting block (214) is disposed in a groove defined by the limiting ring (120), and the base plate (100) is rotated forward and backward until two ends of the limiting ring (120) respectively contact the limiting block (214) of the fixed pin (210), and the limiting block (214) prevents the base plate (100) from further rotating.

5. The frameless exterior mirror according to claim 1, wherein when the shaft (212) of the pin (210) is axially fixed to the base plate (100), a spring (217), a washer (218) and a snap spring (219) are sequentially sleeved on the end of the shaft (212) of the pin (210), the spring (217) is in surface contact with the base plate (100), the snap spring (219) is located at the extreme end of the shaft (212), and when the base plate (100) rotates around the pin (210), the elastic force of the spring (217) acts on the base plate (100).

6. The frameless exterior mirror according to claim 1, wherein in the folding mechanism (200), the rotatable connection structure between the shaft portion (212) of the pin (210) and the folding motor (220) is such that a plurality of trapezoidal teeth are uniformly distributed on the circumference of the annular surface (215) of the head portion (211) of the pin (210), the side surfaces of the trapezoidal teeth are inclined surfaces, a plurality of trapezoidal grooves are uniformly formed on the circumference of the lower end surface of a folding disk member (221) of the folding motor (220), the trapezoidal teeth are engaged in the trapezoidal grooves and transmit resistance, the pin (210) blocks the rotation of the folding disk member (221), and the rotating portion (223) of the folding motor (220) drives the substrate (100) to rotate around the folding disk member (221) and the pin (210).

7. The frameless exterior mirror according to claim 1, wherein, in the steering mechanism (300), the central shaft of the steering motor (311) is in spherical surface fit with the central hole of the connecting plate (312), the steering motor (311) extends two pairs of clamping feet (313) towards one side of the connecting plate (312), each pair of clamping feet (313) is symmetrically arranged relative to the central shaft of the steering motor (311), the connecting line of each pair of clamping feet (313) is an axis for steering the lens, two axes formed by the two pairs of clamping feet (313) determine two rotating directions of the lens, the clamping feet (313) penetrate through the corresponding four clamping holes (314) on the connecting plate (312), the clamping hole (314) limits the end part of the clamping pin (313) from reversely falling out, the clamping foot (313) has a certain length and provides a certain rotating space for the steering motor (311).

8. The frameless exterior rear view mirror according to claim 1, wherein the mirror housing (350) is divided into an upper part and a lower part, the lower part is a secondary mirror housing (351), the upper part is a decorative cover (352), the secondary mirror housing (351) is fixed on the mirror rim mounting plate (320), the lower end face and the front end face of the decorative cover (352) are fastened to the secondary mirror housing (351) and the mirror rim (330), respectively, and the decorative cover (352) and the secondary mirror housing (351) enclose the inner cavity (353).

9. The frameless exterior rear view mirror according to claim 1, wherein the sealing structure (400) comprises a sealing ring (410), a sealing flange (420) and a pressing sleeve (430), the sealing ring (410) is of a sleeve-shaped structure, is sleeved on the pin shaft (210), and is in contact with the mirror foot at the lower part, a labyrinth is formed between an inner hole of the sealing ring (410) and the pin shaft (210) and the mirror foot, the flange (420) is made of a soft material, a lip edge (421) of the flange (420) is fixed on the sealing ring (410), a flat pad part (422) of the flange (420) is fixed on the mirror housing (350) through the pressing sleeve (430), a corrugated connecting body formed by repeated folding of the lip edge (421) and a corrugated part (423) of the flat pad part (422) has a large expansion amount, and the flange (420) enables the sealing structure (400) to form an elastic connection between the mirror housing (350) and the pin shaft (210) And (6) connecting.

10. The frameless exterior mirror according to claim 1, wherein the mirror foot is a support assembly (500), the support assembly (500) comprises a support (510) and a support shield (520), the support (510) is connected with the vehicle body, a convex cylindrical connecting column (511) is arranged on one surface of the support (510) facing the outside of the vehicle body, a coaxial circular positioning groove (512) is formed in the connecting column (511), the head (211) of the pin shaft (210) is accommodated in the positioning groove (512) and fixed at the bottom of the positioning groove (512), the bottom of the positioning groove (512) is communicated with a through hole formed in the pin shaft (210) so as to accommodate a wiring harness for connecting the lens and the vehicle body, the support shield (520) covers the outside of the support (510), and the support shield (520) is positioned by the support (510).