CN207264090U - Projection arrangement and electronic equipment - Google Patents
Projection arrangement and electronic equipment Download PDFInfo
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- CN207264090U CN207264090U CN201721125103.6U CN201721125103U CN207264090U CN 207264090 U CN207264090 U CN 207264090U CN 201721125103 U CN201721125103 U CN 201721125103U CN 207264090 U CN207264090 U CN 207264090U
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- projection
- projection arrangement
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Abstract
The utility model is on a kind of projection arrangement and electronic equipment, is related to electronic device field, and the technical problem of solution is can accurately to adjust focal length.The technical solution mainly used for：Projection arrangement, it includes：Body, projection lens assembly, stepper motor and gear set；Projection lens assembly is connected with driving frame, and projection lens assembly is slidably connected with body, the light-emitting window of the camera lens face body of projection lens assembly；Stepper motor is arranged on body；Gear set includes the first gear and second gear of engagement, the radius of first gear is less than the radius of second gear, first gear and the shaft of stepper motor connect, the side of second gear is rotatablely connected with body, the opposite side of second gear is fixedly connected with cam, and cam is threaded through in driving frame with driving the interior frame of frame to contradict；Wherein, when driving stepper motor gear set rotates, cam rotation holds driving frame, makes projection lens assembly on body along axis linear reciprocating motion where light-emitting window.
Description
Technical field
Electronic device field is the utility model is related to, more particularly to a kind of projection arrangement and electronic equipment.
Background technology
At present, critical piece is projection lens module in micro- projection arrangement, and user is when using micro- projection arrangement, Ke Yitong
The distance of the light-emitting window of the adjustment relatively micro- projection arrangement of projection lens module is crossed, to adjust the focal length of projection, and then makes micro- projection
Device projects clearly picture.
But in the prior art, the projection lens module of micro- projection arrangement when adjusting focal length, it is necessary to user is adjusted manually,
Adjusting process is slow, and user needs adjustment longer time just to access required focal length, and Adjustment precision is relatively low, seriously
The service efficiency of micro- projection arrangement is influenced, while the usage experience of bad luck is brought to user.For the current solution of this problem
Method is the stepper motor and gear of the increase driving projection lens module in micro- projection arrangement, passes through stepper motor band moving gear
To drive projection lens module to move, and then the purpose of focal length is adjusted, but due to the precision of conventional stepper motor itself
Reason, the purpose precisely focused is unable to reach when driving projection lens module to move, so needing to change the step of precision higher into
Focus into motor, and not only the price of itself is high for the stepper motor of precision higher, required precision when it is installed is also very high,
The production cost that so may result in micro- projection arrangement rises.
Utility model content
The main purpose of the utility model is that, there is provided the projection arrangement and electronic equipment of a kind of new structure, to be solved
Technical problem certainly be can efficiently, accurately adjust focal length, thus more suitable for practicality.
The purpose of this utility model and its technical problem is solved using following technical scheme to realize.According to this practicality
A kind of projection arrangement of new proposition, it includes：
Body；
Projection lens assembly, the projection lens assembly are connected with driving frame, the projection lens assembly and the body
It is slidably connected, the light-emitting window of body described in the camera lens face of the projection lens assembly；
Stepper motor, the stepper motor are set on the body；
Gear set, the gear set include the first gear and second gear of engagement, and the radius of the first gear is less than
The radius of the second gear, the first gear are connected with the shaft of the stepper motor, the side of the second gear with
Body rotation connection, the opposite side of the second gear are fixedly connected with cam, the center of rotation of the cam with it is described
The central coaxial of second gear, the interior frame that the cam is threaded through in the driving frame with the driving frame contradict；
Wherein, when gear set described in the driving stepper motor rotates, the cam rotation holds the driving frame, makes
The projection lens assembly is on the body along axis linear reciprocating motion where the light-emitting window.
The purpose of this utility model and solve its technical problem and can also be applied to the following technical measures to achieve further.
Preferably, foregoing projection arrangement, wherein the driving frame is connected to the first side of the projection lens assembly,
The first side is adjacent with side where the camera lens.
Preferably, foregoing projection arrangement, wherein the second side of the projection lens assembly and the first side phase
Right, the second side is provided with the first slide unit, and the body is provided with the second slide unit, first slide unit
It is slidably connected with second slide unit.
Preferably, foregoing projection arrangement, wherein first slide unit is sliding sleeve, second slide unit is cunning
Axis；
Or, first slide unit is sliding block, second slide unit is slide.
Preferably, foregoing projection arrangement, wherein further including：Elastomeric element；
3rd side of the projection lens assembly is opposite with side where the camera lens, the 3rd side and the bullet
One end of property component is inconsistent, and the other end of the elastomeric element and the body are inconsistent.
Preferably, foregoing projection arrangement, wherein the first interior frame of the driving frame and the cam are inconsistent, it is described
First interior frame is parallel with plane where the light-emitting window.
Preferably, foregoing projection arrangement, turns wherein the center of the first side of the second gear is fixedly connected with
Moving axis, the rotation axis are rotatablely connected with the body.
Preferably, foregoing projection arrangement, wherein the cam is ellipse, an elliptical focus is positioned at described
At the axle center of second gear.
Preferably, foregoing projection arrangement, wherein the length of the transverse is projection lens described in the actuated by cams
The ultimate range of head assembly movement.
The purpose of this utility model and solve its technical problem and also realized using following technical solution.According to this practicality
The a kind of electronic equipment of new proposition, it includes：
Electronic device body and projection arrangement；
The projection arrangement includes：Body；
Projection lens assembly, the projection lens assembly are connected with driving frame, the projection lens assembly and the body
It is slidably connected, the light-emitting window of body described in the camera lens face of the projection lens assembly；
Stepper motor, the stepper motor are set on the body；
Gear set, the gear set include the first gear and second gear of engagement, and the radius of the first gear is less than
The radius of the second gear, the first gear are connected with the shaft of the stepper motor, the side of the second gear with
Body rotation connection, the opposite side of the second gear are fixedly connected with cam, the center of rotation of the cam with it is described
The central coaxial of second gear, the interior frame that the cam is threaded through in the driving frame with the driving frame contradict；
Wherein, when gear set described in the driving stepper motor rotates, the cam rotation holds the driving frame, makes
The projection lens assembly is on the body along axis linear reciprocating motion where the light-emitting window；
The projection arrangement is arranged on the electronic device body.
By above-mentioned technical proposal, the utility model projection arrangement and electronic equipment at least have following advantages：
In technical solutions of the utility model, projection arrangement by gear set and driving stepper motor projection lens assembly, into
And the function of adjustment focal length is realized with respect to the distance of light-emitting window on projection arrangement body by adjusting projection lens assembly.Compared to
In the prior art, the projection lens module of micro- projection arrangement when adjusting focal length, it is necessary to which user is adjusted manually, delay by adjusting process
Slowly, user needs adjustment longer time just to access required focal length, and Adjustment precision is relatively low, seriously affects micro- projection
The service efficiency of device, while bring the usage experience of bad luck to user, and for the current solution method of this problem be
The stepper motor and gear of increase driving projection lens module in micro- projection arrangement, are thrown by stepper motor band moving gear to drive
Shadow camera lens module moves, and then adjusts the purpose of focal length, but due to the precision reason of conventional stepper motor itself, is driving
The purpose precisely focused is unable to reach during dynamic projection lens module movement, so needing to change into the stepper motor of precision higher to adjust
Jiao, and not only the price of itself is high for the stepper motor of precision higher, required precision when it is installed is also very high, can thus lead
The production cost of micro- projection arrangement is caused to rise.And projection arrangement provided by the utility model, its stepper motor are to pass through sliding tooth
Wheel group drives projection lens assembly, and the less first gear of radius is connected with stepper motor in gear set, then pass through
One gear carrys out the larger second gear of driving radius, and the cam on using second gear drives projection lens assembly afterwards,
Since the radius of second gear is big compared with the radius of first gear, so second gear has the function that to slow down, you can with stepping
Second gear rotates a less angle after the shaft of motor rotates a circle or a few circles, stepper motor is had height
Rotation precision can export less rotational angle by second gear, and then ensure that driving projection lens assembly fortune
Exchanged when while dynamic precision, and reducing the requirement to the rotation precision of stepper motor, and then meeting projection arrangement production
The requirement of pyrogene degree and production cost.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand the skill of the utility model
Art means, and being practiced according to the content of specification, with the preferred embodiment of the utility model and coordinate attached drawing detailed below
Describe in detail bright as after.
Brief description of the drawings
Fig. 1 is a kind of structure diagram for projection arrangement that the embodiment of the utility model provides.
Embodiment
Further to illustrate that the utility model is to reach the technological means and effect that predetermined purpose of utility model taken,
Below in conjunction with attached drawing and preferred embodiment, to according to the utility model proposes projection arrangement and electronic equipment, it is embodied
Mode, structure, feature and its effect, describe in detail as after.In the following description, different " embodiment " or " embodiment " refers to
Be not necessarily the same embodiment.In addition, the special characteristic, structure or feature in one or more embodiments can be by any suitable
Form combines.
Embodiment one
As shown in Figure 1, a kind of projection arrangement that the embodiment one of the utility model proposes, it includes：Body 1, projection lens
Head assembly 2, stepper motor 3 and gear set 4；Projection lens assembly 2 is connected with driving frame 21, and projection lens assembly 2 is arranged on
On body 1, it is slidably connected with body 1, the light-emitting window of the 22 face body 1 of camera lens of projection lens assembly 2；Stepper motor 3 is set
On body 1；Gear set 4 includes the first gear 41 and second gear 42 of engagement, and the radius of first gear 41 is less than the second tooth
The radius of wheel 42, first gear 41 are connected with the shaft of stepper motor 3, and side and the body 1 of second gear 42 are rotatablely connected, the
The opposite side of two gears 42 is fixedly connected with cam 5, and the center of rotation of cam 5 and the central coaxial of second gear 42, cam 5 are worn
It is located in driving frame 21 with driving the interior frame of frame 21 to contradict；Wherein, when 3 drive gear set 4 of stepper motor rotates, 5 turns of cam
Dynamic holds driving frame 21, makes projection lens assembly 2 on body 1 along axis linear reciprocating motion where the light-emitting window of body.
Specifically, the projection arrangement that projection arrangement provided by the utility model can be conventional-volume can also be miniature
Projection arrangement, it can be a kind of projection arrangement independently used, such as conventional use of projecting apparatus or be installed on equipment
On projection arrangement, such as the projection arrangement on the projection arrangement in augmented reality equipment, or other electronic products；Body is throwing
Control system part, main body frame part and the electrical connection section that the main part of image device includes projection arrangement grade, it is tied
The body that structure may be referred to projection arrangement in the prior art is configured；Projection lens assembly for projection arrangement camera lens and its
The assembly part of his emitting components, its concrete structure may be referred to the prior art and be configured, projection lens assembly and body
Between to be slidably connected can be slidably connected with reset function, after projection lens assembly is slidably connected with body, projection
The direction of motion of lens assembly is necessary for rectilinear direction, the camera lens of projection lens assembly is faced the light-emitting window of body always,
And then the slip of projection lens assembly opposing body is set to become the action of adjustment focal length, the driving frame set on projection lens assembly
It is integrated, or is fixedly connected on the shell body of projection lens assembly with the shell body of projection lens assembly, driving frame can be with
It is the framework of rectangle or other shapes；The radius scale of first gear and second gear can be according to projection lens in gear set
Component movement precision determines, such as when the kinematic accuracy of projection lens assembly is more demanding, can by first gear and
Larger, the shaft rotation larger angle of such stepper motor or the more number of turns of the radius ratio setting of two gears, second
Gear can just rotate less angle, and above-mentioned control mode is easy to implement, and the required precision to stepper motor is low；Second tooth
It is used for the cam for driving projection lens assembly on wheel, its structure needs to determine according to the move distance of projection lens assembly, example
Such as when projection lens assembly need to move it is in larger distance when, cam needs the protrusion with large-size, i.e. cam energy at this time
Enough hold and drive dynamic larger distance of frameing shift, and then drive projection lens assembly movement relatively large distance.
In technical solutions of the utility model, projection arrangement by gear set and driving stepper motor projection lens assembly, into
And the function of adjustment focal length is realized with respect to the distance of light-emitting window on projection arrangement body by adjusting projection lens assembly.Compared to
In the prior art, the projection lens module of micro- projection arrangement when adjusting focal length, it is necessary to which user is adjusted manually, delay by adjusting process
Slowly, user needs adjustment longer time just to access required focal length, and Adjustment precision is relatively low, seriously affects micro- projection
The service efficiency of device, while bring the usage experience of bad luck to user, and for the current solution method of this problem be
The stepper motor and gear of increase driving projection lens module in micro- projection arrangement, are thrown by stepper motor band moving gear to drive
Shadow camera lens module moves, and then adjusts the purpose of focal length, but due to the precision reason of conventional stepper motor itself, is driving
The purpose precisely focused is unable to reach during dynamic projection lens module movement, so needing to change into the stepper motor of precision higher to adjust
Jiao, and not only the price of itself is high for the stepper motor of precision higher, required precision when it is installed is also very high, can thus lead
The production cost of micro- projection arrangement is caused to rise.And projection arrangement provided by the utility model, its stepper motor are to pass through sliding tooth
Wheel group drives projection lens assembly, and the less first gear of radius is connected with stepper motor in gear set, then pass through
One gear carrys out the larger second gear of driving radius, and the cam on using second gear drives projection lens assembly afterwards,
Since the radius of second gear is big compared with the radius of first gear, so second gear has the function that to slow down, you can with stepping
Second gear rotates a less angle after the shaft of motor rotates a circle or a few circles, stepper motor is had height
Rotation precision can export less rotational angle by second gear, and then ensure that driving projection lens assembly fortune
Exchanged when while dynamic precision, and reducing the requirement to the rotation precision of stepper motor, and then meeting projection arrangement production
The requirement of pyrogene degree and production cost.
As shown in Figure 1, among specific implementation, wherein driving frame 21 is connected to the first side of projection lens assembly 2, the
One side is adjacent with 22 place side of camera lens.
Specifically, the link position of driving frame and projection lens assembly is preferably the side of projection lens assembly, this side
Can be with the adjacent either side in side where camera lens, so driving frame does not just interfere with the projection of camera lens, while is also convenient for tooth
The setting of wheel group and stepper motor.
As shown in Figure 1, among specific implementation, the second side of wherein projection lens assembly 2 is opposite with first side, the
Two side faces are provided with the first slide unit 23, and body 1 is provided with the second slide unit 11, and the first slide unit 23 and second slides
Component 11 is slidably connected.
Specifically, when driving frame to be arranged on the first side of projection lens assembly, the can be set on the second side
One slide unit, so when driving projection lens assembly movement, the movement of projection lens assembly is more steady, wherein first slides
Dynamic component can be with sliding sleeve, and the second slide unit is slide-bar；Or, first slide unit be sliding block, the second slide unit is slide.
As shown in Figure 1, among specific implementation, wherein projection arrangement further includes：Elastomeric element 6；Projection lens assembly 2
3rd side is opposite with 22 place side of camera lens, and the 3rd side and one end of the elastomeric element 6 are inconsistent, elastomeric element 6
The other end and body 1 are inconsistent.
Specifically, in order to which when adjusting focal length and mobile projector lens assembly, projection lens assembly can have one again
The elastic force of position, so adding above-mentioned elastomeric element, while can make driving frame have one between cam all the time in elastomeric element
A bearing force, such elastomeric element can also increase stationarity during projection lens assembly movement；Wherein elastomeric element can be
The elasticity part of the routine such as spring or shrapnel.
As shown in Figure 1, among specific implementation, wherein the first interior frame of driving frame 21 and cam 5 are inconsistent, in first
Frame is parallel with plane where the light-emitting window of body.
Specifically, driving frame can be the driving frame of rectangle, then make the interior frame and cam of the driving frame of rectangle
Mutually hold, plane where secondary frame needs the light-emitting window with body is parallel, and to ensure other of in cam rotation driving frame
Frame is not contradicted with cam, to ensure that cam promotes driving frame to be moved back and forth in rectilinear direction, and then is adjusted burnt
Away from purpose.
As shown in Figure 1, among specific implementation, the center of wherein the first side of second gear 42, which is fixedly connected with, to be turned
Moving axis 7, rotation axis 7 are rotatablely connected with the body 1；Cam 5 is ellipse, and an elliptical focus is located at second gear 42
At axle center；Wherein the length of transverse drives the ultimate range of the movement of projection lens assembly 2 for cam 5.
Specifically, since the edge of the cam of ellipse is continuous arc, it is with driving frame during rotation
Continuous contact, and when edge of arc is contacted with driving frame rotation, is relatively steady；It can in addition contain according to projection lens assembly
In the move distance in different focusing stages, to set the curvature at the edge of cam.
Embodiment two
The embodiment two of the utility model proposes a kind of electronic equipment, it includes：Electronic device body and projection arrangement；Such as
Projection arrangement includes shown in Fig. 1：Body 1, projection lens assembly 2, stepper motor 3 and gear set 4；Projection lens assembly 2 connects
Driving frame 21 is connected to, projection lens assembly 2 is arranged on body 1, is slidably connected with body 1, the camera lens 22 of projection lens assembly 2
The light-emitting window of face body 1；Stepper motor 3 is arranged on body 1；Gear set 4 includes 41 and second tooth of first gear of engagement
Wheel 42, the radius of first gear 41 are less than the radius of second gear 42, and first gear 41 is connected with the shaft of stepper motor 3, the
The side of two gears 42 is rotatablely connected with body 1, and the opposite side of second gear 42 is fixedly connected with cam 5, in the rotation of cam 5
The heart and the central coaxial of second gear 42, cam 5 are threaded through in driving frame 21 with driving the interior frame of frame 21 to contradict；Wherein, when
3 drive gear set 4 of stepper motor rotates, and what cam 5 rotated holds driving frame 21, goes out the edge on body 1 of projection lens assembly 2
Axis linear reciprocating motion where optical port；Projection arrangement is arranged on electronic device body.
Specifically, the projection dress of the offer of above-described embodiment one can be used directly in the projection arrangement described in the present embodiment two
Put, concrete implementation structure can be found in the related content described in above-described embodiment one, and details are not described herein again.
In technical solutions of the utility model, projection arrangement by gear set and driving stepper motor projection lens assembly, into
And the function of adjustment focal length is realized with respect to the distance of the light-emitting window of projection arrangement main body by adjusting projection lens assembly.Compared to
In the prior art, the projection lens module of micro- projection arrangement when adjusting focal length, it is necessary to which user is adjusted manually, delay by adjusting process
Slowly, user needs adjustment longer time just to access required focal length, and Adjustment precision is relatively low, seriously affects micro- projection
The service efficiency of device, while bring the usage experience of bad luck to user, and for the current solution method of this problem be
The stepper motor and gear of increase driving projection lens module in micro- projection arrangement, are thrown by stepper motor band moving gear to drive
Shadow camera lens module moves, and then adjusts the purpose of focal length, but due to the precision reason of conventional stepper motor itself, is driving
The purpose precisely focused is unable to reach during dynamic projection lens module movement, so needing to change into the stepper motor of precision higher to adjust
Jiao, and not only the price of itself is high for the stepper motor of precision higher, required precision when it is installed is also very high, can thus lead
The production cost of micro- projection arrangement is caused to rise.And projection arrangement provided by the utility model, its stepper motor are to pass through sliding tooth
Wheel group drives projection lens assembly, and the less first gear of radius is connected with stepper motor in gear set, then pass through
One gear carrys out the larger second gear of driving radius, and the cam on using second gear drives projection lens assembly afterwards,
Since the radius of second gear is big compared with the radius of first gear, so second gear has the function that to slow down, you can with stepping
Second gear rotates a less angle after the shaft of motor rotates a circle or a few circles, stepper motor is had height
Rotation precision can export less rotational angle by second gear, and then ensure that driving projection lens assembly fortune
Exchanged when while dynamic precision, and reducing the requirement to the rotation precision of stepper motor, and then meeting projection arrangement production
The requirement of pyrogene degree and production cost.
The above descriptions are merely preferred embodiments of the present invention, and not the utility model is made in any form
Limitation, any simple modification, equivalent change and modification made to above example according to the technical essence of the utility model,
In the range of still falling within technical solutions of the utility model.
Claims (10)
1. a kind of projection arrangement, it is characterised in that it includes：
Body；
Projection lens assembly, the projection lens assembly are connected with driving frame, and the projection lens assembly is slided with the body
Connection, the light-emitting window of body described in the camera lens face of the projection lens assembly；
Stepper motor, the stepper motor are set on the body；
Gear set, the gear set include the first gear and second gear of engagement, and the radius of the first gear is less than described
The radius of second gear, the first gear are connected with the shaft of the stepper motor, the side of the second gear with it is described
Body is rotatablely connected, and the opposite side of the second gear is fixedly connected with cam, the center of rotation of the cam and described second
The central coaxial of gear, the interior frame that the cam is threaded through in the driving frame with the driving frame contradict；
Wherein, when gear set described in the driving stepper motor rotates, the cam rotation holds the driving frame, makes described
Projection lens assembly is on the body along axis linear reciprocating motion where the light-emitting window.
2. projection arrangement according to claim 1, it is characterised in that
The driving frame is connected to the first side of the projection lens assembly, the first side and side where the camera lens
It is adjacent.
3. projection arrangement according to claim 2, it is characterised in that
The second side of the projection lens assembly is opposite with the first side, and the second side is provided with the first sliding part
Part, the body are provided with the second slide unit, and first slide unit is slidably connected with second slide unit.
4. projection arrangement according to claim 3, it is characterised in that
First slide unit is sliding sleeve, and second slide unit is slide-bar；
Or, first slide unit is sliding block, second slide unit is slide.
5. projection arrangement according to claim 3, it is characterised in that further include：
Elastomeric element；
3rd side of the projection lens assembly is opposite with side where the camera lens, the 3rd side and the elastic portion
One end of part is inconsistent, and the other end of the elastomeric element and the body are inconsistent.
6. projection arrangement according to claim 2, it is characterised in that
First interior frame of the driving frame and the cam are inconsistent, first interior frame and plane where the light-emitting window
It is parallel.
7. projection arrangement according to claim 1, it is characterised in that
The center of first side of the second gear is fixedly connected with rotation axis, and the rotation axis is rotated with the body to be connected
Connect.
8. projection arrangement according to claim 1, it is characterised in that
The cam is ellipse, and an elliptical focus is located at the axle center of the second gear.
9. projection arrangement according to claim 8, it is characterised in that
The ultimate range that the length of the transverse is moved for projection lens assembly described in the actuated by cams.
10. a kind of electronic equipment, it is characterised in that it includes：
Electronic device body；
Any projection arrangement, the projection arrangement are arranged on the electronic device body in the claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721125103.6U CN207264090U (en) | 2017-09-04 | 2017-09-04 | Projection arrangement and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721125103.6U CN207264090U (en) | 2017-09-04 | 2017-09-04 | Projection arrangement and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207264090U true CN207264090U (en) | 2018-04-20 |
Family
ID=61923526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721125103.6U Active CN207264090U (en) | 2017-09-04 | 2017-09-04 | Projection arrangement and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207264090U (en) |
-
2017
- 2017-09-04 CN CN201721125103.6U patent/CN207264090U/en active Active
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