CN109424921A - Dimming mechanism - Google Patents
Dimming mechanism Download PDFInfo
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- CN109424921A CN109424921A CN201710500928.XA CN201710500928A CN109424921A CN 109424921 A CN109424921 A CN 109424921A CN 201710500928 A CN201710500928 A CN 201710500928A CN 109424921 A CN109424921 A CN 109424921A
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Abstract
The present invention provides a kind of dimming mechanism, comprising: luminous component, transmission parts and limiting component;Luminous component includes the first light emitting module and the second light emitting module;First light emitting module and the second light emitting module are arranged parallel, and the second light emitting module is connect with the rotation center on limiting component;Transmission parts are connect with luminous component, and the second light emitting module can be driven to generate relative rotation around rotation center and the first light emitting module;Limiting component, including rotation center, limiting component connects the first light emitting module and the second light emitting module, and limits the central axis of the rotary motion trace of the second light emitting module and the center overlapping of axles of rotation center.The dimming mechanism makes the second light emitting module generate relative rotation around the central axis of rotation center and the first light emitting module;Not only the first light emitting module and the second light emitting module are linked together, so that the two will not be separated from each other;And the rotary motion trace of the second light emitting module can be limited, to realize that high-precision light type is adjusted.
Description
Technical field
The present invention relates to light type regulation technology field, in particular to a kind of dimming mechanism.
Background technique
Existing car light dimming mechanism is that instant and near light optical system adjusting is carried out using mechanical transmission structure, passes through light modulation
Mechanism changes the illumination visual field under different road conditions, to meet the lighting demand under different road conditions, provides for driver optimal
Illuminating effect.To meet the lighting demand under different road conditions, the competitiveness of product is improved, more and more automobiles are all equipped with
AFS intelligence distance light system, the intelligentized control method to light is realized using sensor and mechanical light modulation structure, to meet difference
Lighting demand under road conditions.
With the development of technology, for the illumination mechanism of car light also in progress, the appearance of LED makes the regulating system of distance-light more
Intelligence.If the not single shape of the light emitting structure of LED, light and dark LED particle, and need to reach two groups of LED
The effect of light and shade intersection between module, can just make light type not generate blackening.Therefore, it is necessary to by carrying out to two groups of LED modules
Opposite rotation is adjusted, and existing AFS regulating system cannot achieve the high-precision transmission between two modules, so that two moulds
Block relative rotation.
Summary of the invention
In view of this, the present invention is directed to propose a kind of dimming mechanism, cannot achieve with solving the dimming mechanism of the prior art
The problem of high-precision transmission between two modules.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of dimming mechanism, comprising: luminous component, transmission parts and limiting component;The luminous component includes the first hair
Optical module and the second light emitting module;First light emitting module and second light emitting module are arranged parallel, and second hair
Optical module is connect with the rotation center on the limiting component;The transmission parts are connect with the luminous component, and can be driven
Second light emitting module generates relative rotation around the rotation center and first light emitting module;The limiting component, packet
The rotation center is included, the limiting component connects first light emitting module and second light emitting module, and described in limitation
The center overlapping of axles of the central axis of the rotary motion trace of second light emitting module and the rotation center.
Further: the transmission parts include: the first driving section, the second driving section and third driving section;Described first
By gear drive between driving section and second driving section, make second driving section can be with first driving section
It rotates and rotates;By screw-driven between second driving section and the third driving section, make the third driving section can
As the rotation of second driving section moves up and down along second driving section;The third driving section and described second shines
It is driven between module by coupler-point curve, turns second light emitting module with the up and down motion of the third driving section
It is dynamic.
Further, first driving section includes: first gear and first rotating shaft;The first gear is arranged described
One end of first rotating shaft, and rotated with the rotation of the first rotating shaft;Second driving section and first driving section
It is vertically arranged, comprising: one end of second shaft is arranged in second gear and the second shaft, the second gear;Described
Two gears and first gear engagement, and second shaft can be driven to rotate with the rotation of the first gear;Institute
The outer surface for stating the second shaft has the first screw thread;The third driving section includes: drive rod, and one end of the drive rod has
Transmission base, is arranged in the transmission base fluted, and the surface of the groove has the second screw thread;The second shaft setting
In the groove, and the first screw thread of second shaft outer surface is engaged with the second screw thread of the groove surfaces, described
Drive rod can move up and down with the rotation of second shaft along second shaft;The other end of the drive rod and described
Two light emitting modules are driven by the coupler-point curve.
Further, the third driving section further include: the first fixinig plate, first fixinig plate and the transmission base
End face connection, and form the through-hole for allowing second shaft to pass through with the groove in the transmission base, described first is solid
Second shaft is connected in the groove by stator.
Further: the quantity of the first gear is two and connect with the first rotating shaft, two described first
Spacing is separated between gear;The quantity of second driving section is two, and the second gear and the first gear one are a pair of
It answers and engages;The quantity of the groove is two, and the groove is arranged in a one-to-one correspondence with second shaft.
Further: the other end of the drive rod is provided with transmission boss, and second light emitting module is close to described
It is provided with transmission limiting slot on the surface of first light emitting module, the transmission boss is embedded in the transmission limiting slot, and can be with
The movement of the drive rod moved in the transmission limiting slot, second light emitting module with the movement of the drive rod and
Rotation.It is further:
Further: the transmission limiting slot is semicircle limiting slot, and the semicircle limiting slot is far from described second
Driving section setting.
Further, first driving section further include: adjustment portion connect with the other end of the first rotating shaft, is used for
Adjust the circle number of the rotation of the first rotating shaft.
Further, the limiting component includes: gag lever post, and gag lever post setting is in first light emitting module and the
It between two light emitting modules, and is connect with first light emitting module, the gag lever post is provided centrally with the rotation center;Institute
The both ends for stating gag lever post extend respectively into the outside of second light emitting module, and the both ends of the gag lever post are respectively arranged with
One limit hole;Second light emitting module is provided with circular limit track, and the limit track part is located at second hair
The inside of optical module is partially located at the outside of second light emitting module, the position-limited rail outside second light emitting module
Road is threaded through in first limit hole at the gag lever post both ends;The center of circle of the circular limit track is located at the rotation
On the central axis at center.
Further, the rotation center includes: the second limit hole being arranged on the gag lever post, and described second shines
Limiting stand is provided in module, the size of the limiting stand is matched with the size of second limit hole, the limiting stand insertion
In second limit hole, and it can be freely rotated in second limit hole.
Compared with the existing technology, dimming mechanism of the present invention has the advantage that
The transmission parts of the dimming mechanism can make central axis and first light emitting module of second light emitting module around rotation center
Generate relative rotation;And limiting component not only links together the first light emitting module and the second light emitting module, so that the two
It will not be separated from each other;And the rotary motion trace of the second light emitting module can be limited, to realize that high-precision light type is adjusted.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram one of the dimming mechanism of the embodiment of the present invention;
Fig. 2 is the structural schematic diagram two of the dimming mechanism of the embodiment of the present invention;
Fig. 3 shows for the structure of the first light emitting module of the dimming mechanism of the embodiment of the present invention, transmission parts and limiting component
It is intended to one;
Fig. 4 shows for the structure of the first light emitting module of the dimming mechanism of the embodiment of the present invention, transmission parts and limiting component
It is intended to two;
Fig. 5 is the structural schematic diagram of the second light emitting module of the dimming mechanism of the embodiment of the present invention;
Fig. 6 is the rearview of the second light emitting module of the dimming mechanism of the embodiment of the present invention;
Fig. 7 is the structural schematic diagram of the first driving section of the dimming mechanism of the embodiment of the present invention;
Fig. 8 is the structural schematic diagram of the second driving section of the dimming mechanism of the embodiment of the present invention;
Fig. 9 is the structural schematic diagram of the third driving section of the dimming mechanism of the embodiment of the present invention;
Figure 10 is a kind of structural schematic diagram of the first fixinig plate of the dimming mechanism of the embodiment of the present invention;
Figure 11 is another structural schematic diagram of the first fixinig plate of the dimming mechanism of the embodiment of the present invention;
Figure 12 is the structural schematic diagram of the shell of the first light emitting module of the dimming mechanism of the embodiment of the present invention;
Figure 13 is the structural schematic diagram of the first mounting shell of the dimming mechanism of the embodiment of the present invention;
Figure 14 is the structural schematic diagram of the second mounting shell of the dimming mechanism of the embodiment of the present invention;
Figure 15 is the structural schematic diagram of the gag lever post of the dimming mechanism of the embodiment of the present invention;
Figure 16 is the structural schematic diagram of the first semi-circular recesses of the dimming mechanism of the embodiment of the present invention;
Figure 17 is the structural schematic diagram of the second semi-circular recesses of the dimming mechanism of the embodiment of the present invention;
Figure 18 is the structural schematic diagram of the second fixinig plate of the dimming mechanism of the embodiment of the present invention;
Figure 19 is the rotation angle schematic diagram being adjusted using the dimming mechanism of the embodiment of the present invention;
Figure 20 is the enlarged diagram at the C of Figure 19.
Description of symbols:
The first light emitting module of 1-, the second light emitting module of 2-, the first driving section 3-, the second driving section 4-, 5- third driving section,
6- limiting component, the first mounting shell of 7-, the second mounting shell of 8-, the first shell of the first light emitting module of 11-, 12- first shine mould
The second shell of block, the first shell of the second light emitting module of 21-, 22- limiting stand, 23- transmission limiting slot, 24- limit track,
31- first gear, 32- first rotating shaft, 33- adjustment portion, the first limiting slot of 34-, 41- second gear, the second shaft of 42-, 43-
Two limiting slots, 44- third limiting slot, 51- transmission base, 52- drive rod, 53- groove, 54- are driven boss, and 55- first is buckled,
The first fixinig plate of 56-, 61- gag lever post, the first limit hole of 62-, the second limit hole of 63-, the first semi-circular recesses of 64-, 65- second
Semi-circular recesses, the second fixinig plate of 66-, 67- second are buckled, the first arc-like sheet of 561-, the first strip piece of 562-, and 563- first blocks
Connect hole, the first connection sheet of 564-, 641- protrusion, 651- location hole, the second arc-like sheet of 661-, the second strip piece of 662-, 663- the
Two blocked holes.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
The embodiment of the invention discloses a kind of dimming mechanisms.The dimming mechanism includes: luminous component, transmission parts and limit
Component.
Wherein, luminous component includes the first light emitting module and the second light emitting module.First light emitting module and the second luminous mould
Block is arranged parallel, and the second light emitting module is connect with the rotation center on limiting component.First light emitting module and the second luminous mould
Block can be distance light lamp module.
Transmission parts are connect with luminous component, and the second light emitting module can be driven around rotation center and the first light emitting module
Generate relative rotation.
Limiting component, including rotation center.Limiting component connects the first light emitting module and the second light emitting module, and limits the
The central axis of the rotary motion trace of two light emitting modules and the center overlapping of axles of rotation center.
It is designed by above-mentioned structure, the transmission parts of the dimming mechanism can make the second light emitting module in rotation center
Mandrel and the first light emitting module generate relative rotation;And limiting component not only connects the first light emitting module and the second light emitting module
It is connected together, so that the two will not be separated from each other;And the rotary motion trace of the second light emitting module can be limited, to realize high-precision light
Type is adjusted.
Specifically, transmission parts include: the first driving section, the second driving section and third driving section.First driving section and
It by gear drive between two driving sections, rotate the second driving section can with the rotation of the first driving section.Second driving section
By screw-driven between third driving section, make third driving section as the rotation of the second driving section is above and below the second driving section
Movement.It is driven between third driving section and the second light emitting module by coupler-point curve, makes the second light emitting module as third is driven
The up and down motion in portion and rotate.
Therefore, it is designed by above-mentioned structure, which passes through the rotation of the first driving section, turns the second driving section
It is dynamic;By the rotation of the second rotation section, third driving section is made to move up and down;By the up and down motion of third driving section, make second
Light emitting module can be around the central axis rotation where rotation center, to realize rotation-rotation-up and down motion-rotation transmission side
Formula, this kind of kind of drive can relatively accurately adjust the rotational angle of the second light emitting module.
Such as Fig. 1~18, the dimming mechanism of the embodiment of the present invention is shown.In a preferred embodiment of the invention, such as
Shown in Fig. 7, the first driving section 3 includes: first gear 31 and first rotating shaft 32.The one of first rotating shaft 32 is arranged in first gear 31
End, and rotated with the rotation of first rotating shaft 32.Preferably, first gear 31 is bevel gear.In the preferred embodiment, it is
It is convenient for topology layout, the first driving section 3 is located at the second shell 12 of the first light emitting module 1.The of first light emitting module 1
Two shells 12 are the shell adjacent with the first shell 11 of the first light emitting module 1.The first shell 11 of first light emitting module 1 is just
To the second light emitting module 2.
As shown in figure 8, the second driving section 4 is vertically arranged with the first driving section 3.Second driving section 4 includes: second gear 41
With the second shaft 42.One end of the second shaft 42 is arranged in second gear 41.Second gear 41 and first gear 31 engage, and can
The second shaft 42 is driven to rotate with the rotation of first gear 31.The outer surface of second shaft 42 has the first screw thread.It is preferred that
, second gear 41 is bevel gear, and first rotating shaft 32 and the second shaft 42 are vertical.In the preferred embodiment, for the ease of knot
Structure layout, the second driving section 4 is located at the second shell 12 of the first light emitting module 1.
As shown in figure 9, third driving section 5 includes: drive rod 52.One end of drive rod 52 has transmission base 51.It is preferred that
, drive rod 52 and transmission base 51 are mutually perpendicular to, and shape is at L-shaped.Fluted 53 are arranged in transmission base 51.The surface of groove 53
With the second screw thread.Second shaft 42 is arranged in groove 53, and the first screw thread of 42 outer surface of the second shaft and 53 table of groove
Second screw thread in face engages, so that drive rod 52 can move up and down with the rotation of the second shaft 42 along the second shaft 42.Drive rod
52 other end and the second light emitting module 2 are driven by coupler-point curve.In the preferred embodiment, for the ease of topology layout, pass
Moving base 51 also is located at the second shell 12 of the first light emitting module 1.
By above-mentioned gear engagement, the combination transmission of screw thread engagement, transmission accuracy is not only improved, is also helped pair
Control is adjusted in the movement of small stroke;Also, gear-driven form is used between the first driving section 3 and the second driving section 4,
Guarantee transmission accuracy and integral strength.
Further, since the active force between the second shaft 42 and transmission base 51 may make the second shaft in rotation process
42 are detached from the groove 53;Therefore, in order to make in rotation process, transmission base 51 is not easy to be detached from the second shaft 42, third transmission
Portion 5 further include: the first fixinig plate 56, for limiting the displacement of the second shaft 42.The end of first fixinig plate 56 and transmission base 51
Face connection, and the through-hole for allowing the second shaft 42 to pass through is formed with the groove 53 in transmission base 51.First fixinig plate 56 is by
Two shafts 42 are connected in groove 53, to avoid the second shaft 42 from falling off from groove 53, so that the first of the second shaft 42
Second screw thread of screw thread and groove 53 can tightly engage.
Specifically, as shown in Figure 10, the structure of the first fixinig plate 56 in one embodiment of the invention is as follows: the first fixinig plate
56 the first strip piece 562 by the first arc-like sheet 561 and positioned at 561 both ends of the first arc-like sheet forms.The arc of first arc-like sheet 561
Degree is matched with the radian of groove 53.First strip piece 562 is parallel to the end face of transmission base 51, and sets on the first strip piece 562
It is equipped with the first blocked hole 563.The first buckle 55 is provided on the end face of transmission base 51.The preferably wedge shape of first buckle 55.
In first buckle, 55 first blocked hole 563 of insertion, the first fixinig plate 56 is fixedly connected with transmission base 51.The side of the clamping
Formula can reduce occupied space.
In order to keep entire transmission process more stable, it is preferred that the quantity of first gear 31 be two and with first turn
Axis 32 connects.Specifically, two first gears 31 are arranged at intervals on one end of first rotating shaft 32.The quantity of second driving section 4 is
Two, i.e. the quantity of second gear 41 and the second shaft 42 is also two.Each second gear 41 is arranged in every one second shaft
42 one end.Two the second shafts 42 are arranged in parallel.Second gear 41 is corresponded and is engaged with first gear 31.Groove 53
Quantity is two, and groove 53 is arranged in a one-to-one correspondence with the second shaft 42.Likewise, as shown in figure 11, the first fixinig plate 56 has
Two the first arc-like sheets 561, are arranged in a one-to-one correspondence with groove 53.Two the first arc-like sheets 561 can be connected by the first connection sheet 564
It connects.Two the first strip pieces 562 are separately positioned on one end opposite with the first connection sheet 564 of two the first arc-like sheets 561.
Specifically, the other end of drive rod 52 is provided with transmission boss 54.Second light emitting module 2 is close to the first luminous mould
Transmission limiting slot 23 is provided on the surface of block 1.Specifically, the transmission limiting slot 23 setting shines second in the present embodiment
In the first shell 21 of module 2.The first shell 11 of 21 the first light emitting module of face 1 of first shell of second light emitting module 2.
The size for being driven boss 54 is matched with the size of transmission limiting slot 23.It is driven in the insertion transmission limiting slot 23 of boss 54, and can be with
Drive rod 52 movement transmission limiting slot 23 in move.Second light emitting module 2 is rotated with the movement of drive rod 52.
It is designed by above-mentioned structure, due to being driven the limit of limiting slot 23, so that transmission boss 54 can only be limited in transmission
It is moved in the space that position slot 23 limits.Due to being driven the movement of boss 54, the edge for being driven 54 pairs of boss transmission limiting slots 23 is applied
Power, to drive the rotation of the second light emitting module 2.
Specifically, the transmission limiting slot 23 is semicircle limiting slot, and semicircle limiting slot is set far from the second driving section 4
It sets.The transmission limiting slot 23 of the shape defines the rotatable angle of the second light emitting module 2.
During rotation in order to avoid the second light emitting module 2, interference is generated with third driving section 3, is driven limiting slot 23
It is bent (by taking Fig. 6 as an example, which is circular left circular portion) to the direction far from the second rotation section 4, then third
When driving section 5 rises, the second light emitting module 2 is rotated counterclockwise.
For the angle for accurately controlling the rotation of first rotating shaft 32, first driving section 3 further include: adjustment portion 33.Adjustment portion 33
It is connect with the other end of first rotating shaft 32, the circle number of the rotation for adjusting first rotating shaft 32.Specifically, the adjustment portion 33 can be with
It by manually adjusting, also can connect the mechanisms such as motor, automatically adjust.
It, cannot be along first since the embodiment of the present invention need to ensure that first rotating shaft 32 can only be around the axial direction rotation of first rotating shaft 32
The axial direction of shaft 32 or axial movement perpendicular to first rotating shaft 32, therefore, it is necessary to limit to first rotating shaft 32.Specifically
, the limit of first rotating shaft 32 is realized by following structure:
As shown in fig. 7, the outer surface of first rotating shaft 32 is provided at least one first limiting slot 34.Preferably, if first
A first gear 31 is only provided in shaft 32, then the quantity of first limiting slot 34 is preferably two, is preferably placed at first
The both ends of shaft 32.Preferably, if there are two first gear 31, the quantity of first limiting slot 34 for setting in first rotating shaft 32
Preferably three.Two the first limiting slots 34 are located at close to the position of two first gears 31, the first limiting slot of third
34 close to first rotating shaft 32 the other end being connect with adjustment portion 33.
Dimming mechanism further include: the first mounting shell 7.Wherein, the first mounting shell 7 covers the first driving section 3, and is fixedly installed
In the second shell 12 of the first light emitting module 1.Specifically, the first mounting shell 7 can be bolted on the first light emitting module 1
Second shell 12 on.As shown in figure 13, the position of corresponding first limiting slot 34 is provided with the on the inner surface of the first mounting shell 7
One boss 71.It should be understood that the quantity of first boss 71 and the quantity of the first limiting slot 34 are equal.First boss 71 is embedded in
In first limiting slot 34.The first boss 71 is preferably semicircle, and its size is matched with the size of the first limiting slot 34, is made
In its just embeddable first limiting slot 34.
As shown in figure 12, the position of corresponding first limiting slot 34 is provided with the in the second shell 12 of the first light emitting module 1
Two boss 121.It should be understood that the quantity of second boss 121 and the quantity of the first limiting slot 34 are equal.Second boss 121
It is embedded in the first limiting slot 34.The preferably semicircle, and the size of its size and the first limiting slot 34 of second boss 121
Match, makes in its just embeddable first limiting slot 34.
Since the position of first boss 71 and second boss 121 is fixed, when first boss 71 and second is convex
After platform 121 is respectively embedded into corresponding first limiting slot 34, can limit first rotating shaft 32 can only surround the axial direction of first rotating shaft 32
Rotation, and cannot move in the other direction.When first boss 71 and second boss 121 are semicircle, first boss 71
With 121 capable assembling of second boss at complete annulus, first rotating shaft 32 is limited to be more advantageous to.
Likewise, since the embodiment of the present invention need to ensure that the second shaft 42 can only be around the axial direction rotation of the second shaft 42, no
Can the axial direction along the second shaft 42 or the axial movement perpendicular to the second shaft 42, therefore, it is necessary to the second shaft 42 carry out
Limit.Specifically, the limit of the second shaft 42 is realized by following structure:
As shown in figure 8, the outer surface of one end of the close second gear 41 of the second shaft 42 is provided with the second limiting slot 43,
The outer surface of the other end of second shaft 42 is provided with third limiting slot 44.
As shown in figure 13, the first mounting shell 7 covers one end and the second gear 41 of the second shaft 42.First mounting shell 7
The position of corresponding second limiting slot 43 is provided with third boss 72 on inner surface, and third boss 72 is embedded in 42 in the second limiting slot.
The third boss 72 is preferably semicircle, and its size is matched with the size of the second limiting slot 43, make its just embeddable the
In two limiting slots 43.
Dimming mechanism further include: the second mounting shell 8.Second mounting shell 8 covers the other end of the second shaft 42, and fixation is set
It sets in the second shell 12 of the first light emitting module 1.Specifically, the second mounting shell 8 can be bolted on the first luminous mould
In the second shell 12 of block 1.As shown in figure 14, the position setting of third limiting slot 44 is corresponded on the inner surface of the second mounting shell 8
There is the 4th boss 81.4th boss 81 is embedded in third limiting slot 44.4th boss 81 preferably semicircle, and its size
It matches, makes in its just embeddable third limiting slot 44 with the size of third limiting slot 44.
As shown in figure 12, the position of corresponding second limiting slot 43 is provided with the in the second shell 12 of the first light emitting module 1
Five boss 122.5th boss 122 is embedded in the second limiting slot 43.Third limit is corresponded in the second shell 12 of first light emitting module 1
The position of position slot 44 is provided with the 6th boss 123.6th boss 123 is embedded in third limiting slot 44.5th boss 122 is preferably
For semicircle, and its size is matched with the size of the second limiting slot 43, is made in its just embeddable second limiting slot 43.This
Six boss 123 are preferably semicircle, and its size is matched with the size of third limiting slot 44, make its just embeddable third limit
In the slot 44 of position.
Since the position of third boss 72, the 4th boss 81, the 5th boss 122 and the 6th boss 123 is fixed, because
This, after third boss 72, the 4th boss 81, the 5th boss 122 and the 6th boss 123 are respectively embedded into corresponding limiting slot,
The second shaft 42, which can be limited, cannot move in the other direction around the axial rotation of the second shaft 42.When third is convex
When platform 72, the 4th boss 81, the 5th boss 122 and the 6th boss 123 are semicircle, third boss 72 and the 5th boss 122
Capable assembling is at complete annulus, and the 4th boss 81 and 123 capable assembling of the 6th boss are at complete annulus, to be more advantageous to
Two shafts 42 are limited.
Specifically, as shown in figure 15, limiting component 6 includes: gag lever post 61.Gag lever post 61 is arranged in the first light emitting module 1
It is connect between the second light emitting module 2, and with the first light emitting module 1.Specifically, in the present embodiment, the setting of gag lever post 61 is the
In the first shell 11 of one light emitting module 1.Gag lever post 61 is provided centrally with rotation center.The both ends of gag lever post 61 each extend over
To the outside of the second light emitting module 2, and the both ends of gag lever post 61 are respectively arranged with the first limit hole 62.Second light emitting module 2
It is provided with circular limit track 24.24 part of limit track is located at the inside of the second light emitting module 2, is partially located at second and shines
The outside of module 2, the limit track 24 outside the second light emitting module 2 are threaded through first limit hole 62 at 61 both ends of gag lever post
In.The center of circle of circular limit track 24 is located on the central axis of rotation center.Rotation center includes being arranged in gag lever post 61
On the second limit hole 63.Limiting stand 22 is provided on second light emitting module 2.Specifically, limiting stand 22 is arranged in the present embodiment
In the first shell 21 of the second light emitting module 2.The size of limiting stand 22 with the size of the second limit hole 63 match.Limiting stand
In 22 the second limit holes 63 of insertion, and it can be freely rotated in the second limit hole 63.
Therefore, above structure defines that limiting stand 22 can only be in the second limit hole 63 around the central axis where rotation center
Rotation, and limit track 24 is worn and is penetrated in the first limit hole 62, also defines that the second light emitting module 2 can only be around rotation center institute
Central axis rotation, to define the path of the relative motion of the first module 1 and the second module 2;And due to gag lever post
61 be to be fixed on the first light emitting module 1, and the circular limit track 24 of the second light emitting module 2 is threaded through the first limit hole 62
In, it is equivalent to so that the first light emitting module 1 and the second light emitting module 2 link together, the position of the two is relatively fixed.
Specifically, in a preferred embodiment, the first above-mentioned limit hole 62 can be realized by following structure:
First limit hole 62 is formed by the first semi-circular recesses 64 and 65 split of the second semi-circular recesses.First is semicircle recessed
The end of gag lever post 61 is arranged in slot 64.As shown in figure 16, protrusion 641 is provided on the end face of the first semi-circular recesses 64.Such as
Shown in Figure 17, location hole 651 is provided on the end face of the second semi-circular recesses 65.The end face and second of first semi-circular recesses 64
The end face of semi-circular recesses 65 is opposite.The protrusion 641 is inserted into location hole 651, so that the first semi-circular recesses 64 and the second half
Circular groove 65 pieces together an entirety.
Since the first integral semi-circular recesses 64 of the split are not fixedly connected with the second semi-circular recesses 65,
During use, the second semi-circular recesses 65 are easy to fall off from the first semi-circular recesses 64.Therefore, in order to solve above-mentioned ask
Topic, the limit module 6 further include: the second fixinig plate 66, for limiting the position of the second semi-circular recesses 65, thus by the second half
Circular groove 65 and the first semi-circular recesses 64 are fixed.Specifically, as shown in figure 18, the second fixinig plate 66 is by the second arc-like sheet
661 and two second strip piece 662 disposed in parallel composition relatively.One end of two second strip pieces 662 is separately connected the second arc
The both ends of piece 661.Pitch match the first semi-circular recesses 64 and the second semi-circular recesses 65 between two second strip pieces 662
Diameter, and the radian of the second arc-like sheet 661 is identical as the radian of the second semi-circular recesses 65, so that the second arc-like sheet 661 can
It is set in the outer surface of the second semi-circular recesses 65, and the inner surface of the second arc-like sheet 661 and the second semi-circular recesses 65 is outer
Intimate surface contact.The other end of second strip piece 662 is fixedly connected with one end of gag lever post 61, thus semicircle recessed by second
Slot 65 is tightly connected at the first semi-circular recesses 64, is limited the position of the second semi-circular recesses 65, is made it that can not fall off.The
The other end of two strip pieces 662 is fixedly connected with one end of gag lever post 61 to be realized by following specific structure: the second bar shaped
The surface of the close other end of piece 662 is provided with the second blocked hole 663, the other end of gag lever post 61 with the second strip piece 662
The two opposite surfaces of connection are provided with the second buckle 67.The preferably wedge shape of second buckle 67.Second buckle 67 is caught in the
In two blocked holes 663, the other end of the second strip piece 662 is fixedly connected with one end of gag lever post 61.The mode of the clamping, can
To reduce occupied space.
Specifically, transmission parts, the first mounting shell 7, the second mounting shell 8, are dry friction between face and face, PMMA can be selected
Material.Limiting component 6, although between face and face be also dry friction, exercise intensity compared with transmission parts, and less, and transport
It moves infrequently, so, the material selection aluminum component of limiting component 6, to reduce frictional force.
Specifically, the movement that the transmission parts of the dimming mechanism of the embodiment of the present invention limit passes ratio are as follows:
First driving section 3 and the second driving section 4 are 1:1 transmission, i.e., one circle of the rotation of first gear 31, second gear 41 also turn
A dynamic circle.The thread pitch of second driving section 4 is A (such as 1mm), then one circle of the second driving section 4 rotation, on third driving section 5
It rises or the distance of decline is A (such as 1mm).Third driving section 5 rises or declines to the rotational angle of the second light emitting module 2
It influences as shown in table 1.The rotating effect of second light emitting module 2 is as shown in Figures 19 and 20.Wherein, A is rotation center, and B is transmission
The motion profile of boss 54, D are the rotational angle of the second light emitting module 2.
The rotational angle for the second light emitting module that 1 dimming mechanism of table is adjusted
Second gear turnning circle | The move distance of third driving section | The rotational angle of second light emitting module |
1 | 1mm | 0.140° |
2 | 2mm | 0.526° |
3 | 3mm | 1.120° |
4 | 4mm | 1.912° |
5 | 5mm | 2.845° |
6 | 6mm | 3.954° |
7 | 7mm | 5.225° |
8 | 8mm | 6.664° |
9 | 9mm | 8.300° |
10 | 10mm | 10.119° |
Second gear maximum rotation circle number | The largest motion distance of third driving section | 11.189° |
To sum up, the dimming mechanism of the embodiment of the present invention realizes rotation-rotation-up and down motion-by the way that transmission parts are arranged
The kind of drive of rotation, this kind of kind of drive can relatively accurately adjust the rotational angle of the second light emitting module 2;And pass through gear
The combination transmission that engagement, screw thread engage, not only improves precision, also helps and control is adjusted to the movement of small stroke;
Can only be around the central axis rotation of rotation center in addition, the second light emitting module 2 can be limited by limiting component 6, it cannot be at other
Side moves upwards;And the relative position of the first light emitting module 1 and the second light emitting module 2 is limited by limiting component 6, so that the two
It will not be separated from each other.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of dimming mechanism characterized by comprising luminous component, transmission parts and limiting component;
The luminous component includes the first light emitting module and the second light emitting module;First light emitting module and described second shines
Modular concurrent setting, and second light emitting module is connect with the rotation center on the limiting component;
The transmission parts are connect with the luminous component, and can drive second light emitting module around the rotation center with
First light emitting module generates relative rotation;
The limiting component, including the rotation center, the limiting component connect first light emitting module and described second
Light emitting module, and limit the central axis of the rotary motion trace of second light emitting module and the center overlapping of axles of the rotation center.
2. dimming mechanism according to claim 1, which is characterized in that the transmission parts include: the first driving section, second
Driving section and third driving section;By gear drive between first driving section and second driving section, make described second
Driving section can be rotated with the rotation of first driving section;Pass through between second driving section and the third driving section
Screw-driven makes the third driving section that can move up and down with the rotation of second driving section along second driving section;
It is driven between the third driving section and second light emitting module by coupler-point curve, makes second light emitting module with institute
It states the up and down motion of third driving section and rotates.
3. dimming mechanism according to claim 2, it is characterised in that:
First driving section includes: first gear and first rotating shaft;The one of the first rotating shaft is arranged in the first gear
End, and rotated with the rotation of the first rotating shaft;
Second driving section is vertically arranged with first driving section, comprising: second gear and the second shaft, second tooth
One end of second shaft is arranged in wheel;The second gear and first gear engagement, and can be with first tooth
The rotation of wheel and drive second shaft to rotate;The outer surface of second shaft has the first screw thread;
The third driving section includes: drive rod, and one end of the drive rod has transmission base, is arranged in the transmission base
Fluted, the surface of the groove has the second screw thread;Second shaft is arranged in the groove, and second shaft
First screw thread of outer surface is engaged with the second screw thread of the groove surfaces, and the drive rod can be with the rotation of second shaft
It moves up and down along second shaft;The other end of the drive rod and second light emitting module are passed by the coupler-point curve
It is dynamic.
4. dimming mechanism according to claim 3, which is characterized in that the third driving section further include: the first fixinig plate,
First fixinig plate is connect with the end face of the transmission base, and allows described the with the groove formation in the transmission base
Second shaft is connected in the groove by the through-hole that two shafts pass through, first fixinig plate.
5. dimming mechanism according to claim 3, it is characterised in that:
The quantity of the first gear is two and connect with the first rotating shaft, between being separated between two first gears
Away from;
The quantity of second driving section is two, and the second gear is corresponded and engaged with the first gear;
The quantity of the groove is two, and the groove is arranged in a one-to-one correspondence with second shaft.
6. light modulation structure according to claim 3, it is characterised in that:
The other end of the drive rod is provided with transmission boss, and second light emitting module is close to first light emitting module
Transmission limiting slot is provided on surface, the transmission boss is embedded in the transmission limiting slot, and can be with the drive rod
Movement moves in the transmission limiting slot, and second light emitting module is rotated with the movement of the drive rod.
7. dimming mechanism according to claim 6, it is characterised in that: the transmission limiting slot is semicircle limiting slot, and
The semicircle limiting slot is arranged far from second driving section.
8. dimming mechanism according to claim 3, which is characterized in that first driving section further include: adjustment portion, with institute
State the other end connection of first rotating shaft, the circle number of the rotation for adjusting the first rotating shaft.
9. dimming mechanism according to any one of claims 1 to 8, which is characterized in that the limiting component includes:
Gag lever post, the gag lever post are arranged between first light emitting module and the second light emitting module, and send out with described first
Optical module connection, the gag lever post are provided centrally with the rotation center;The both ends of the gag lever post extend respectively into described
The outside of second light emitting module, and the both ends of the gag lever post are respectively arranged with the first limit hole;
Second light emitting module is provided with circular limit track, and the limit track part is located at second light emitting module
Inside, be partially located at the outside of second light emitting module, the limit track outside second light emitting module wears
In first limit hole at the gag lever post both ends;The center of circle of the circular limit track is located at the rotation center
On central axis.
10. dimming mechanism according to claim 9, which is characterized in that the rotation center includes: to be arranged in the limit
The second limit hole on bar is provided with limiting stand, the size of the limiting stand and second limit on second light emitting module
The size matching in position hole, the limiting stand is embedded in second limit hole, and can be freely rotated in second limit hole.
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