CN213442303U - Gear assembly and electric folder with same for automobile exterior rearview mirror - Google Patents

Abstract

The utility model discloses a gear assembly, including drive gear and concentrated connecting piece, drive gear rotates to be connected on concentrated connecting piece, concentrated connecting piece is equipped with the spout, drive gear is equipped with the slider, the slider slides after a predetermined distance in spout circumference and rotates with concentrated connecting piece is synchronous, the spacing seat is established to the upper end of concentrated connecting piece, spacing seat is equipped with first spacing lug, drive gear is equipped with the spacing lug of second, still disclose the electronic scray of vapour exterior mirror, including the gear assembly, a housing, base and base, the one end and the mirror base plate of casing are connected, the other end and the base fixed connection of casing, the one end fixed connection of base is on the mirror support. The utility model provides a can smoothly realize the lifting function, the bearing capacity requirement of counter gear is lower, is fit for the electronic scray of a gear assembly and vapour exterior mirror that has it that lightweight development, cost are lower.

Description

Gear assembly and electric folder with same for automobile exterior rearview mirror

Technical Field

The utility model belongs to vapour exterior mirror field, in particular to gear assembly and have its vapour exterior mirror's electronic scray.

Background

The automobile outer rear-view mirror is an automobile accessory for a driver to observe the running states of rear vehicles and pedestrians in the automobile running process, is necessary for safe driving, and can enable the driver to observe the visual field in a specific direction through adjusting the installation angle of the outer rear-view mirror, so that safe driving is facilitated. The importance of exterior rear view mirrors is therefore well known. And because the outer rearview mirrors are arranged at the two sides of the automobile, the outer rearview mirrors arranged outside the automobile often use an electrically-driven folding device, so that the damage or unnecessary disputes of the automobile caused by the collision of the outer rearview mirrors with other vehicles and pedestrians when the automobile runs at a narrow space position or in a complex situation with more pedestrians are avoided. The motorized folding device is generally rotatably mounted between a mirror base plate and a mirror support fixed to a vehicle to perform a folding function. In order to reduce the frictional resistance between the mirror substrate and the mirror holder during the power folding, a certain gap is often required to be left between the mirror substrate and the mirror holder during the design of the rearview mirror. However, if a gap is left, the lower end surface of the mirror base plate is less supported by the mirror support, which means that the mirror base plate is completely supported by the folding mounting shaft and is pressed by the spring sleeved on the mounting shaft, so that the anti-shaking capability is poor, and the mirror base plate is easy to shake during driving, especially during high driving speed or road jolt. In addition, if a gap is left, the wind noise in the driving process is large, the mirror substrate and the mirror support are both made of plastic materials through injection molding, the materials are prone to aging along with long-time use, and due to factors such as wind and sand inclusion, resistance is prone to occurring due to rotation, the current is too high when the motor runs, and the phenomena of failure in folding and incapability of being folded in place are caused.

For this reason, the prior invention patent CN 105034957B of the applicant provides an electric folding device for an automobile outside rear-view mirror, under the driving of an electric driving unit, a cam assembly among a connecting piece, a base and a base can lift the base along a mounting shaft direction by relative sliding with each other and under the elastic force of a spring, that is, when the electric folding device is rotated, the base and a shell are lifted upwards firstly integrally, that is, a mirror base plate is lifted upwards along with the electric folding device. However, the structural design has a high requirement on the bearing capacity of the gear of the connecting piece, and the gear can meet the strength requirement only by adopting a good material such as a powder metallurgy piece, so that the lightweight development and the cost reduction of a product are not facilitated.

Disclosure of Invention

Aiming at the defects, the invention provides a gear assembly which can smoothly realize the lifting function, has lower requirement on the bearing capacity of a gear, is suitable for light weight development and has lower cost, and an electric folder of an automobile exterior rearview mirror with the gear assembly.

The utility model provides a technical scheme that above-mentioned problem adopted does: a gear assembly comprises a driving gear and a centralized connecting piece, wherein the driving gear is rotationally connected to the centralized connecting piece, the outer side wall of the centralized connecting piece is provided with a sliding groove, the inner peripheral wall of the driving gear is provided with a sliding block matched with the sliding groove, the sliding block slides a preset distance along the circumference of the centralized connecting piece in the sliding chute and then abuts against the side wall of the sliding chute so that the driving gear and the centralized connecting piece rotate synchronously, the upper end of the centralized connecting piece is provided with a limiting seat, one side of the limiting seat close to the driving gear is provided with a first limiting lug, one side of the driving gear close to the limiting seat is provided with a second limiting lug, in the initial state, the first limit lug is abutted against the second limit lug, after the sliding block moves for a preset distance, the first limiting lug and the second limiting lug are released from abutting, and the first limiting lug can move towards the second limiting lug.

Compared with the prior art, the utility model has the advantages of: design through first spacing lug and the counterbalance of the spacing lug of second, form the reserved clearance, then through the design that the slider removed in the spout, make and eliminate the reserved clearance, make the ascending lifting of mirror base plate, compare in prior art and realize the lifting function through the relative slip in each connecting piece, this application technical scheme is at whole folding in-process, the power that drive gear bore is less relatively, can not receive the impact of extra power, whole lifting operation process is also more light, it is lower to drive gear's bearing requirement, adopt ordinary plastic gear can, do benefit to the lightweight development of product, the cost is also lower.

As an improvement, one side of the limiting seat close to the driving gear is further provided with a limiting seat cam assembly, one side of the driving gear close to the limiting seat is further provided with a driving gear cam assembly, and the limiting seat cam assembly and the driving gear cam assembly are embedded after the first limiting bump moves towards the second limiting bump so as to realize the locking of the limiting seat and the driving gear.

As the improvement, the spout is equipped with a plurality ofly, and corresponding slider also is equipped with a plurality ofly, and is a plurality of the spout is along the even array of the circumference of concentrating the connecting piece, through the improvement, can make the removal between spout and the slider be connected more stably, and overall structure atress is more even.

As the improvement, the sliding block and the second limiting convex block are integrally designed, and the first limiting convex block is arranged in the radial range of the sliding groove.

The utility model provides a technical scheme that above-mentioned problem adopted does: the utility model provides an electronic scray of outside rear-view mirror of car, includes gear assembly, casing, base and base, the one end and the mirror base of casing are connected, the other end and the base fixed connection of casing, the one end fixed connection of base is on the mirror support, the base can keep away from or be close to the base when rotating around the base, the other end and the concentrated connecting piece gomphosis of base are connected, under initial condition, drive gear is close to one side and the base counterbalance of base.

Compared with the prior art, the utility model has the advantages of: through the function that the base can keep away from or be close to the base when rotating around the base, and then through the characteristics that the base is connected with the concentrated connecting piece gomphosis, realize finally in proper order through drive gear's drive, drive concentrated connecting piece and rotate, drive the base and rotate, make the base lifting, make the step of drive gear lifting, thus the rear-view mirror that this application was used has the following same advantage with the invention that applicant applied earlier: when folding, base and casing are whole earlier upwards lifting, and the mirror base plate of rear-view mirror also is along with upwards lifting promptly, also folding rotation in-process, and mirror base plate and mirror support can part certain distance, and the rotation resistance between them is littleer, and folding process is more smooth and easy, is difficult for taking place the dead phenomenon of card, also can not take place the unable phenomenon of folding target in place. Due to the lifting function of the folder, when the rearview mirror is designed, the mirror substrate can be tightly attached to the mirror support, and the mirror support can play a better supporting role for the mirror substrate and the mirror shell. Therefore, in the driving process, the shaking phenomenon is not easy to occur, and meanwhile, the wind noise is reduced.

As the improvement, still include the electric drive unit, the electric drive unit includes motor and drive assembly, drive assembly is used for connecting drive gear and motor, motor and drive assembly locate a module intracavity, through the improvement, realize drive gear's rotation under the electrically driven condition to locate a module intracavity through motor and drive assembly, then with whole module together install in the casing, reduced the installation time greatly, promoted assembly production efficiency greatly, and motor and drive assembly's location effect is also better.

As the improvement, one side that the base is close to the base is equipped with base cam module, during initial state, base cam module and base cam module are in the gomphosis state, base cam module is the inclined plane with base cam module's side and offsets, and in the drive process, base cam module moves to the direction of keeping away from base cam module along the inclined plane, accomplishes the back at the drive, base cam module and base cam module are in the state of offsetting, through the improvement, the effect that the base can keep away from or be close to the base when realizing the base for the base rotates.

As an improvement, one side of the centralized connecting piece close to the base is provided with a plurality of first lug assemblies, one side of the base close to the centralized connecting piece is provided with a plurality of second lug assemblies, and under the initial and electric driving states, the first lug assemblies and the second lug assemblies are embedded to realize the locking between the centralized connecting piece and the base.

As an improvement, one side of the base close to the driving gear is provided with a third limit bump, one side of the driving gear close to the base is provided with a fourth limit bump, when the base is in an initial state, the third limit bump abuts against the fourth limit bump, after the slider moves to a preset distance, the third limit bump and the fourth limit bump are released from abutting, the third limit bump can move towards the fourth limit bump, and through the improvement, a reserved gap can be arranged between the base and the driving gear, so that the lifting distance is larger.

As an improvement, one side of the concentrated connecting piece, which is far away from the driving gear, is provided with a positioning mechanism, the positioning mechanism comprises a plurality of positioning blocks which are obliquely arranged along the circumferential uniform array of the concentrated connecting piece, one end of each positioning block is provided with a positioning groove, and the inner cavity of the shell is provided with an elastic positioning column which can be matched with the positioning grooves to realize positioning.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic sectional view of the overall structure of the present invention.

Fig. 3 is a schematic view of the structure of the centralized connecting piece of the present invention.

Fig. 4 is a schematic view of the driving gear of the present invention.

Fig. 5 is a schematic view of the base structure of the present invention.

Fig. 6 is a schematic view of a structure of one side of the base of the present invention.

Fig. 7 is a schematic view of the structure of the other side of the base according to the present invention.

Fig. 8 is a schematic structural diagram of the electric drive unit of the present invention.

Fig. 9 is a schematic view of the connection structure of the concentrated connection member, the driving gear, the base and the base of the present invention.

Fig. 10 is a schematic view of the initial state expansion structure of the concentrated connection member, the driving gear, the base and the base according to the present invention.

Fig. 11 is a schematic view of the expansion structure of the concentrated connection member, the driving gear, the base and the base of the present invention.

Fig. 12 is a schematic view of the expansion structure of the concentrated connection member, the driving gear, the base and the base of the present invention.

Fig. 13 is a schematic view of the third state of the concentrated connection member, the driving gear, the base and the base according to the present invention.

Fig. 14 is a schematic view of the unfolding structure of the centralized connecting piece, the driving gear, the base and the base of the present invention in the folded state.

Shown in the figure: 1. the electric drive unit comprises a shell, 1.1, an elastic positioning column, 2, a base, 2.1, a base cam assembly, 2.2, a third limiting lug, 3, a base, 3.1, a base cam assembly, 3.2, a second lug assembly, 4, an electric drive unit, 4.1, a motor, 4.2, a transmission assembly, 4.3, a drive gear, 4.3.1, a sliding block, 4.3.2, a second limiting lug, 4.3.3, a fourth limiting lug, 4.3.4, a drive gear cam assembly, 4.4, a module cavity, 5, a centralized connecting piece, 5.1, a first lug assembly, 5.2, a limiting seat, 5.3, a sliding groove, 5.4, a first limiting lug, 5.5, a limiting seat cam assembly, 5.6, a positioning block, 5.7, a positioning groove, 6 and a clearance.

Detailed Description

Embodiments of the present invention are further described below with reference to the accompanying drawings.

As shown in fig. 1-9, an electric folder of an automobile exterior mirror comprises a gear assembly, a housing 1, a base 2, a base 3 and an electric driving unit 4, wherein one end of the housing 1 is connected with a mirror base plate, the other end of the housing 1 is fixedly connected with the base 2, one end of the base 3 is fixedly connected with a mirror support, the base 3 can be far away from or close to the base 3 when rotating around the base 2, the other end of the base 3 is connected with a centralized connecting piece 5 in an embedded manner, and one side, close to the base 2, of the driving gear 4.3 is abutted to the base 2 in an initial state.

As shown in fig. 3, 5 and 9, the gear assembly includes a driving gear 4.3 and a centralized connecting member 5, the driving gear 4.3 is rotatably connected to the centralized connecting member 5, a sliding slot 5.3 is provided on an outer side wall of the centralized connecting member 5, a sliding block 4.3.1 matched with the sliding slot 5.3 is provided on an inner peripheral wall of the driving gear 4.3, the sliding block 4.3.1 slides a preset distance in the sliding slot 5.3 along a circumferential direction of the centralized connecting member 5 and then abuts against a side wall of the sliding slot 5.3 to make the driving gear 4.3 and the centralized connecting member 5 rotate synchronously, a limiting seat 5.2 is provided on an upper end of the centralized connecting member 5, a first limiting bump 5.4 is provided on a side of the limiting seat 5.2 close to the driving gear 4.3, a second limiting bump 4.3.2 is provided on a side of the driving gear 4.3 close to the limiting seat 5.2, the first limiting bump 5.4 abuts against the second limiting bump 4.3.2 in an initial state, the sliding block 4.3.1 moves a preset, first spacing lug 5.4 and the spacing lug 4.3.2 of second are removed and are held back and first spacing lug 5.4 can remove to the spacing lug 4.3.2 direction of second, spacing seat 5.2 is close to one side of drive gear 4.3 and still is equipped with spacing seat cam subassembly 5.5, one side that drive gear 4.3 is close to spacing seat 5.2 still is equipped with drive gear cam subassembly 4.3.4, spacing seat cam subassembly 5.5 and drive gear cam subassembly 4.3.4 remove back looks gomphosis in order to realize the locking of spacing seat 5.2 and drive gear 4.3 at first spacing lug 5.4 to the spacing lug 4.3.2 direction of second, spout 5.3 is equipped with threely, corresponding slider 4.3.1 also is equipped with threely, threely spout 5.3 is along the even array of the circumference of concentrated connecting piece 5, slider 4.3.1 and the design of second spacing lug 4.3.2 an organic whole, first spacing lug 5.4 locates the radial within range of spout 5.3.

As shown in fig. 8, the electric drive unit 4 includes a motor 4.1 and a transmission assembly 4.2, the transmission assembly 4.2 is used to connect the driving gear 4.3 and the motor 4.1, the motor 4.1 and the transmission assembly 4.2 are disposed in a module cavity 4.4, that is, the motor 4.1 and the transmission assembly 4.2 are both disposed in an injection molding housing 1 matched with the motor in shape, so as to form a module assembly. When assembling, can be earlier with motor 4.1 with drive assembly 4.2 install in advance module cavity 4.4, then with whole module together install casing 1 in, reduced installation time greatly, promoted assembly production efficiency greatly, and motor 4.1 and drive assembly 4.2's location effect is also better.

As shown in fig. 5-7, the side of the base 2 near the base 3 is provided with a base cam assembly 2.1, a base cam component 3.1 is arranged on one side of the base 3 close to the base 2, and in an initial state, the base cam component 2.1 and the base cam component 3.1 are in a jogged state, the base cam component 2.1 is propped against the side surface of the base cam component 3.1 in an inclined plane, during driving, the base cam assembly 2.1 moves along the ramp in a direction away from the base cam assembly 3.1, after the driving is finished, the base cam component 2.1 and the base cam component 3.1 are in a state of abutting, the base cam component 2.1 and the base cam component 3.1 are matched with the L-shaped groove through the L-shaped convex block and the L-shaped groove and other convex blocks and grooves with different widths, the embedded relation of fool-proofing and firmness strengthening between the base 2 and the base 3 can be met, and the failure of the base cam component 2.1 and the base cam component 3.1 after a certain group of cams are matched and worn can be prevented.

As shown in fig. 2-4, a plurality of first bump assemblies 5.1 are disposed on one side of the centralized connection member 5 close to the base 3, a plurality of second bump assemblies 3.2 are disposed on one side of the base 3 close to the centralized connection member 5, the first bump assemblies 5.1 and the second bump assemblies 3.2 are embedded to lock the centralized connection member 5 and the base 3 in an initial and electric driving state, a spring is disposed on one side of the centralized connection member 5 away from the driving gear 4.3, one end of the spring abuts against the centralized connection member 5, the other end of the spring abuts against the housing 1, the first bump assemblies 5.1 and the second bump assemblies 3.2 are kept in an embedded state under the action of the spring, and when a manual torque is applied to the rearview mirror, the elastic force of the spring is overcome, the first bump assemblies 5.1 and the second bump assemblies 3.2 are separated, and the manual folding rearview mirror is folded.

As shown in fig. 3 and 7, a third limiting protrusion 2.2 is disposed on a side of the base 2 close to the driving gear 4.3, a fourth limiting protrusion 4.3.3 is disposed on a side of the driving gear 4.3 close to the base 2, the third limiting protrusion 2.2 abuts against the fourth limiting protrusion 4.3.3 in an initial state, and after the slider 4.3.1 moves a preset distance, the third limiting protrusion 2.2 and the fourth limiting protrusion 4.3.3 are released from abutting and the third limiting protrusion 2.2 can move towards the fourth limiting protrusion 4.3.3.

As shown in fig. 2 and 3, one side of keeping away from drive gear 4.3 of concentrated connecting piece 5 is equipped with positioning mechanism, positioning mechanism includes a plurality of locating pieces 5.6 that are equipped with the slope setting along the even array of circumference of concentrated connecting piece 5 the one end of locating piece 5.6 is equipped with constant head tank 5.7, 1 inner chamber of casing is equipped with can cooperate in order to realize the elastic positioning post 1.1 of location with constant head tank 5.7, and elastic positioning post 1.1 direct action concentrates connecting piece 5, plays the positioning action to its turned angle, prevents that the rear-view mirror from folding excessively, and elastic positioning post 1.1 is better with locating piece 5.6's location effect, and can practice thrift installation space, and the design of whole product also can be compacter.

The preset distance is greater than the widths of the first limit bump 5.4, the second limit bump 4.3.2, the third limit bump 2.2 and the fourth limit bump 4.3.3.

In the process of upward lifting of the base 2, the reserved gap 6 formed by the third limiting bump 2.2 and the fourth limiting bump 4.3.3 is eliminated, and then the reserved gap 6 formed by the first limiting bump 5.4 and the second limiting bump 4.3.2 is eliminated, wherein the two reserved gaps 6 are the distance by which the base 2 can be lifted, and the two reserved gaps 6 are usually designed to be 0.5-1 mm. And both ends of each limit bump are provided with inclined edges so as to realize smooth transition during relative movement.

As shown in fig. 10-14, in order to better illustrate the whole working process of the folding device and focus on the state change of the key components, the matching relationship of the assembly formed by the connecting piece 5, the driving gear 4.3, the base 2 and the base 3 is concentrated for unfolding processing.

As shown in fig. 9 and 10, in the initial state, i.e., the mirror is in the unfolded state: the first limiting lug 5.4 is abutted against the second limiting lug 4.3.2, a reserved gap 6 is arranged between the centralized connecting piece 5 and the driving gear 4.3, the third limiting lug 2.2 is abutted against the fourth limiting lug 4.3.3, a reserved gap 6 is arranged between the driving gear 4.3 and the base 2, the sliding block 4.3.1 is positioned at one end of the sliding groove 5.3, and the base cam component 2.1 and the base cam component 3.1 are mutually embedded at the moment; meanwhile, the limit seat cam assembly 5.5 and the driving gear cam assembly 4.3.4 are in a separated state.

In the process of folding the rearview mirror, as shown in fig. 11, under the action of the electric drive unit 4, the drive gear 4.3 slides along the central connecting piece 5 for a preset distance in the circumferential direction, that is, the slide block 4.3.1 slides from one side of the slide groove 5.3 to the other side, the first limit lug 5.4 abuts against the second limit lug 4.3.2, the third limit lug 2.2 abuts against the fourth limit lug 4.3.3, but at this time, both the two reserved gaps 6 still exist, and the base cam assembly 2.1 and the base cam assembly 3.1 are still in the embedded state; at this time, the stopper seat cam assembly 5.5 and the drive gear cam assembly 4.3.4 become a fitted state, and the stopper seat 5.2 and the drive gear 4.3 can be regarded as a single body later.

As shown in fig. 12, the drive gear 4.3 drives the centralized connecting piece 5 to rotate together, the base cam assembly 2.1 and the base cam assembly 3.1 start to slide, and the base 2 is lifted upwards, so that the reserved gap 6 between the third limiting lug 2.2 and the fourth limiting lug 4.3.3 is gradually eliminated;

as shown in fig. 13, the drive gear 4.3 continues to drive the centralized connecting piece 5 to rotate, the base cam assembly 2.1 and the base cam assembly 3.1 continue to slide, and the reserved gap 6 between the first limit bump 5.4 and the second limit bump 4.3.2 is gradually eliminated;

as shown in fig. 14, the clearance 6 between the first limit projection 5.4 and the second limit projection 4.3.2 is eliminated, and the base cam assembly 2.1 completely runs on the base cam assembly 3.1, completing the lifting action of the base 2 and folding in place.

In the above fig. 10-14, to more clearly show the change between the structures, the sliding block 4.3.1, the second limit projection 4.3.2 and the fourth limit projection 4.3.3 on the driving gear 4.3 are separately designed, while in fig. 9, the sliding block 4.3.1, the second limit projection 4.3.2 and the fourth limit projection 4.3.3 are integrally designed.

In the whole folding working process, the bearing force of the driving gear 4.3 is relatively small, the current required by the motor 4.1 is small, the whole lifting operation process of the base 2 is easier, the bearing requirement on the driving gear 4.3 is lower, only a common plastic gear is adopted, the lightweight development of products is facilitated, and the cost is lower.

The foregoing is illustrative of the preferred embodiments of the present invention only, and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to be changed. All changes which come within the scope of the invention as defined by the independent claims are therefore intended to be embraced therein.

Claims (10)

1. A gear assembly, characterized by: comprises a driving gear (4.3) and a centralized connecting piece (5), the driving gear (4.3) is rotationally connected on the centralized connecting piece (5), the outer side wall of the centralized connecting piece (5) is provided with a sliding groove (5.3), the inner peripheral wall of the driving gear (4.3) is provided with a sliding block (4.3.1) matched with the sliding groove (5.3), the sliding block (4.3.1) is in the sliding groove (5.3) and is propped against the side wall of the sliding groove (5.3) after sliding for a preset distance along the circumferential direction of the centralized connecting piece (5) to enable the driving gear (4.3) and the centralized connecting piece (5) to synchronously rotate, a limiting seat (5.2) is arranged at the upper end of the centralized connecting piece (5), one side of the limiting seat (5.2) close to the driving gear (4.3) is provided with a first limiting lug (5.4), one side of the driving gear (4.3) close to the limiting seat (5.2) is provided with a second limiting lug (4.3, the first limiting lug (5.4) abuts against the second limiting lug (4.3.2), after the sliding block (4.3.1) moves for a preset distance, the first limiting lug (5.4) and the second limiting lug (4.3.2) are released from abutting, and the first limiting lug (5.4) can move towards the second limiting lug (4.3.2).

2. The gear assembly of claim 1, wherein: spacing seat (5.2) are close to one side of drive gear (4.3) and still are equipped with spacing seat cam subassembly (5.5), drive gear (4.3) are close to one side of spacing seat (5.2) and still are equipped with drive gear cam subassembly (4.3.4), spacing seat cam subassembly (5.5) and drive gear cam subassembly (4.3.4) are at first spacing lug (5.4) to the locking of spacing lug (4.3.2) of second removal looks gomphosis in order to realize spacing seat (5.2) and drive gear (4.3).

3. The gear assembly of claim 1, wherein: the sliding grooves (5.3) are provided with a plurality of sliding blocks (4.3.1) correspondingly, and the sliding grooves (5.3) are evenly arrayed along the circumferential direction of the centralized connecting piece (5).

4. The gear assembly of claim 1, wherein: the slider (4.3.1) and the second limit lug (4.3.2) are integrally designed, and the first limit lug (5.4) is arranged in the radial range of the sliding groove (5.3).

5. The utility model provides an electronic scray of outside rear-view mirror of car which characterized in that: including any one gear assembly of claims 1-4, casing (1), base (2) and base (3), the one end of casing (1) is connected with the mirror base board, the other end and the base (2) fixed connection of casing (1), the one end fixed connection of base (3) is on the mirror support, base (3) can keep away from or be close to base (3) when rotating around base (2), the other end and the gomphosis of concentrating connecting piece (5) of base (3) are connected, and under initial condition, one side that drive gear (4.3) are close to base (2) offsets with base (2).

6. The electric folder of the automobile exterior mirror according to claim 5, wherein: still include electric drive unit (4), electric drive unit (4) include motor (4.1) and transmission assembly (4.2), transmission assembly (4.2) are used for connecting drive gear (4.3) and motor (4.1), motor (4.1) and transmission assembly (4.2) are located in a module chamber (4.4).

7. The electric folder of the automobile exterior mirror according to claim 5, wherein: one side that base (2) are close to base (3) is equipped with base cam subassembly (2.1), one side that base (3) are close to base (2) is equipped with base cam subassembly (3.1), during initial state, base cam subassembly (2.1) and base cam subassembly (3.1) are in the gomphosis state, base cam subassembly (2.1) is the inclined plane with the side of base cam subassembly (3.1) and offsets, and in the drive process, base cam subassembly (2.1) remove to the direction of keeping away from base cam subassembly (3.1) along the inclined plane, and after the drive is accomplished, base cam subassembly (2.1) and base cam subassembly (3.1) are in the counterbalance state.

8. The electric folder of the automobile exterior mirror according to claim 5, wherein: concentrate one side that is close to base (3) of connecting piece (5) and be equipped with a plurality of first lug subassemblies (5.1), one side that base (3) are close to concentrated connecting piece (5) is equipped with a plurality of second lug subassemblies (3.2), under initial and electric drive state, first lug subassembly (5.1) with second lug subassembly (3.2) looks gomphosis in order to realize concentrated connecting piece (5) with locking between base (3).

9. The electric folder of the automobile exterior mirror according to claim 5, wherein: one side that base (2) are close to drive gear (4.3) is equipped with third spacing lug (2.2), one side that drive gear (4.3) are close to base (2) is equipped with fourth spacing lug (4.3.3), and when initial condition, third spacing lug (2.2) and fourth spacing lug (4.3.3) offset, after slider (4.3.1) removed the predetermined distance, third spacing lug (2.2) and fourth spacing lug (4.3.3) are relieved to offset and third spacing lug (2.2) can be to fourth spacing lug (4.3.3) direction removal.

10. The electric folder of the automobile exterior mirror according to claim 5, wherein: concentrate one side of keeping away from drive gear (4.3) of connecting piece (5) to be equipped with positioning mechanism, positioning mechanism includes a plurality of locating pieces (5.6) that are equipped with the slope setting along the even array of circumference of concentrating connecting piece (5) the one end of locating piece (5.6) is equipped with constant head tank (5.7), casing (1) inner chamber be equipped with can with constant head tank (5.7) cooperation in order to realize elasticity reference column (1.1) of location.

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