CN203365895U - Lens focusing motor for projector - Google Patents
Lens focusing motor for projector Download PDFInfo
- Publication number
- CN203365895U CN203365895U CN201320493521.6U CN201320493521U CN203365895U CN 203365895 U CN203365895 U CN 203365895U CN 201320493521 U CN201320493521 U CN 201320493521U CN 203365895 U CN203365895 U CN 203365895U
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- China
- Prior art keywords
- transmission gear
- gear
- projector lens
- plectrum
- motor
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model provides a lens focusing motor for a projector. The lens focusing motor comprises a DC motor, a first transmission gear, a second transmission gear and an output gear, wherein the first transmission gear and the second transmission gear are fixedly arranged on the same rotation shaft and the diameter of the first transmission gear is larger than that of the second transmission gear. The rotation shaft of the DC motor is provided with a motor gear which is engaged with the first transmission gear. The second transmission gear is engaged with the output gear. The output gear is provided with a driving piece for driving a lens adjusting rod and the driving piece follows the output gear to rotate. The DC motor-driven driving piece is utilized to drive the projector lens adjusting rod, so that electric focusing of a projector lens is achieved, and focusing operation of the projector lens can be simplified.
Description
Technical field
The utility model relates to the projector field, more particularly, relates to a kind of projector lens focusing motor.
Background technology
Projector claims again projector, is a kind of image or video to be projected to the equipment on curtain.At present, projector is widely used in family, office, school and public place of entertainment.
In projector commonly used, the core light block learn is ray machine.When using projector commonly used, along with the difference of use scenes, often need to regulate the focal length of the camera lens in projector, thereby make cast out picture more clear.Therefore, all be provided with corresponding lens focusing motor in general projector, for the focal length of adjustable lens.
Shown in Figure 1, in existing projector, be generally all that a bar of the camera adjusting for the adjustable lens focal length 12 is set at the camera lens place of ray machine 11.This camera adjusting bar 12, when the center of circle along camera lens rotates, will move along the skewed slot 13 on the arc surface of ray machine 11 shells.Can reach the purpose of manual focusing by the motion of this camera adjusting bar 12.Yet this camera adjusting bar 12 is generally cylindrical, usually shorter, manual operation is poor.For improving operability and guaranteeing the image appearance of product, most of projector of the prior art all is provided with corresponding projector focusing motor between the shell of projector and camera adjusting bar, by this projector focusing motor of manual adjustment, can drive the camera adjusting bar and realize the focusing operation to camera lens.
Yet projector focusing motor of the prior art, all adopt manual adjustments, must rotate or stir specific adjusting ring or bar on projector, its operation is relatively loaded down with trivial details.
The utility model content
The technical problems to be solved in the utility model is, for the above-mentioned projector lens unhandy problem of focusing, provides a kind of projector lens focusing motor.
The technical scheme that the utility model solves the problems of the technologies described above is, a kind of projector lens focusing motor is provided, comprise direct current generator, the first transmission gear, the second transmission gear and output gear, wherein: described the first transmission gear and the second transmission gear are fixed in same rotating shaft and the diameter of the first transmission gear is greater than the diameter of the second transmission gear; The rotating shaft of described direct current generator is provided with motor gear and this motor gear and the engagement of the first transmission gear; Described the second transmission gear and output gear engagement; On described output gear, be provided with for stirring the plectrum of camera adjusting bar, and this plectrum rotates with output gear.
In projector lens focusing motor described in the utility model, described plectrum is provided with U-shaped mouth and the size of this U-shaped mouth and the size coupling of camera adjusting bar of output gear rotating shaft dorsad.
In projector lens focusing motor described in the utility model, also comprise the upper cover and the lower cover that are fixed by screws in together, described direct current generator, the first transmission gear, the second transmission gear and output gear are installed between upper cover and lower cover.
In projector lens focusing motor described in the utility model, the upper surface of described lower cover is provided with two outstanding axle beds, and described output gear is installed on axle bed by two axle sleeves.
In projector lens focusing motor described in the utility model, the rotating shaft of described the first transmission gear and the second transmission gear is installed in the side towards lower cover of upper cover.
In projector lens focusing motor described in the utility model, the upper surface of described upper cover is provided with a plurality of fixed legs.
In projector lens focusing motor described in the utility model, lateral surface edge and this plectrum that described plectrum is located at output gear are positioned at upper cover and lower cover outside.
In projector lens described in the utility model focusing motor, described upper cover and/or under cover the position limiting structure that is provided with restriction plectrum slewing area.
In projector lens described in the utility model focusing motor, described position limiting structure rotates plectrum is spacing in the scope of 180 °.
In projector lens focusing motor described in the utility model, described output gear and plectrum are one-body molded, and described the first transmission gear and the second transmission gear are one-body molded.
Projector lens focusing motor of the present utility model has following beneficial effect: stir the projection lens adjuster bar by the plectrum driven by direct current generator, thereby realize the electromotion focusing of projection lens, can simplify the focusing operation of projection lens.
The accompanying drawing explanation
Fig. 1 is existing projector lens focusing structure schematic diagram.
Fig. 2 is the schematic diagram of the utility model projector lens focusing motor embodiment.
Fig. 3 is the schematic diagram of projector lens focusing motor in Fig. 2.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 2, be the schematic diagram of the utility model projector lens focusing motor embodiment.Projector lens in the present embodiment focusing motor comprises direct current generator 23, the first transmission gear 24, the second transmission gear 25 and output gear 26, and wherein the first transmission gear 24 and the second transmission gear 25 are fixed in same rotating shaft and the diameter of the first transmission gear 24 is greater than the diameter of the second transmission gear 25; The rotating shaft of direct current generator 23 is provided with motor gear 231 and this motor gear 231 and the first transmission gear 24 engagements; The second transmission gear 25 and output gear 26 engagements; Be provided with the plectrum 27 for stirring the camera adjusting bar on output gear 26, and this plectrum 27 rotates with output gear 26.
When direct current generator 23 running, motor gear 231 drives the first transmission gears 24 and rotates, and is rotated by the second transmission gear 25 driver output gears 26, thereby the plectrum 27 rotated together with output gear 26 can be stirred the camera adjusting bar and focused.Above-mentioned projector lens focusing motor configuration is simple, can realize the projector lens focusing by controlling direct current generator 23 operations.
In above-mentioned projector lens focusing motor, plectrum 27 is provided with the U-shaped mouth, and the rotating shaft of output gear 26 dorsad of this U-shaped mouth.Especially, the size of the size of U-shaped mouth and camera adjusting bar coupling on this plectrum 27, thus the camera adjusting bar can be located in this U-shaped mouth.When plectrum 27 rotates with output gear 26, two arms of U-shaped mouth can be stirred the camera adjusting bar and move towards different directions, realize lens focusing.
Above-mentioned direct current generator 23, the first transmission gear 24, the second transmission gear 25 and output gear 26 can be installed between upper cover 22 and lower cover 21, and wherein upper cover 22 is with together with lower cover 21 is fixed by screws in.By upper cover 22 and lower cover 21, direct current generator 23, the first transmission gear 24, the second transmission gear 25 and output gear 26 can be combined into to a module, so that the integral body assembling of projector lens focusing motor.
Upper surface at lower cover 21 can arrange two outstanding axle beds 211, and output gear 26 is installed on axle bed 211 by two axle sleeves 29, and a sheathed axle sleeve 29 is distinguished at the two ends of the axle of output gear 26, then two axle sleeves 29 are separately fixed on axle bed 211.By this mode, realized the assembling of output gear 26.
The first transmission gear 24 can assemble in the following manner with 25 of the second transmission gears: the side towards lower cover 21 at upper cover 22 arranges two relative grooves, and the two ends of the first transmission gear 24 and the axle of the second transmission gear 25 embed respectively in above-mentioned two relative grooves.When upper cover 22 is fixed on lower cover 21, the first transmission gear 24 and the second transmission gear 25 are engaged to respectively on the motor gear 231 and output gear 26 of direct current generator 23.
For realizing the installation of projector lens focusing motor, at the upper surface of above-mentioned upper cover 22 (a side of lower cover) dorsad, a plurality of fixed legs 28 can be set, this fixed leg 28 has internal thread or is equiped with nut.Like this, internal thread that can be by being screwed to fixed leg 28 or the double-screw bolt of nut, be fixed on precalculated position by the projector lens motor of focusing.
Especially, plectrum 27 can be located at the lateral surface edge of output gear 26, and this plectrum 27 is positioned at the outside of upper cover 22 and lower cover 21.In addition, can on upper cover 22 and/or lower cover 21, position limiting structure be set, with the rotational angle of restriction plectrum 27, avoid the camera adjusting bar to deviate from from the U-shaped mouth of plectrum 27.For example, above-mentioned position limiting structure can limit plectrum 27 and rotates in the scope of 180 °.
When mounted, above-mentioned projector lens focusing motor can be fixed near the camera adjusting bar and the camera adjusting bar is inserted in the U-shaped mouth of plectrum 27.
In above-mentioned projector lens focusing motor, output gear 26 can be one-body molded with plectrum 27.The first 24 of transmission gears can be one-body molded with the second transmission gear 25.
The above; it is only preferably embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.
Claims (10)
1. projector lens focusing motor, it is characterized in that: comprise direct current generator, the first transmission gear, the second transmission gear and output gear, wherein: described the first transmission gear and the second transmission gear are fixed in same rotating shaft and the diameter of the first transmission gear is greater than the diameter of the second transmission gear; The rotating shaft of described direct current generator is provided with motor gear and this motor gear and the engagement of the first transmission gear; Described the second transmission gear and output gear engagement; On described output gear, be provided with for stirring the plectrum of camera adjusting bar, and this plectrum rotates with output gear.
2. projector lens according to claim 1 focusing motor, it is characterized in that: described plectrum is provided with the U-shaped mouth of output gear rotating shaft dorsad and the size of this U-shaped mouth is mated with the size of camera adjusting bar.
3. projector lens according to claim 1 focusing motor, it is characterized in that: also comprise the upper cover and the lower cover that are fixed by screws in together, described direct current generator, the first transmission gear, the second transmission gear and output gear are installed between upper cover and lower cover.
4. projector lens according to claim 3 focusing motor, it is characterized in that: the upper surface of described lower cover is provided with two outstanding axle beds, and described output gear is installed on axle bed by two axle sleeves.
5. projector lens according to claim 3 focusing motor, it is characterized in that: the rotating shaft of described the first transmission gear and the second transmission gear is installed in the side towards lower cover of upper cover.
6. projector lens according to claim 3 focusing motor, it is characterized in that: the upper surface of described upper cover is provided with a plurality of fixed legs.
7. projector lens according to claim 3 focusing motor, it is characterized in that: lateral surface edge and this plectrum that described plectrum is located at output gear are positioned at upper cover and lower cover outside.
8. projector lens according to claim 7 focusing motor is characterized in that: described upper cover and/or under cover the position limiting structure that is provided with restriction plectrum slewing area.
9. projector lens according to claim 8 focusing motor is characterized in that: described position limiting structure rotates plectrum is spacing in the scope of 180 °.
10. according to the described projector lens focusing of any one in claim 1-9 motor, it is characterized in that: described output gear and plectrum are one-body molded, and described the first transmission gear and the second transmission gear are one-body molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320493521.6U CN203365895U (en) | 2013-08-13 | 2013-08-13 | Lens focusing motor for projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320493521.6U CN203365895U (en) | 2013-08-13 | 2013-08-13 | Lens focusing motor for projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203365895U true CN203365895U (en) | 2013-12-25 |
Family
ID=49813638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320493521.6U Expired - Lifetime CN203365895U (en) | 2013-08-13 | 2013-08-13 | Lens focusing motor for projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203365895U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104284122A (en) * | 2014-09-28 | 2015-01-14 | 联想(北京)有限公司 | Information processing method, electronic device and projector |
| CN105301735A (en) * | 2015-11-24 | 2016-02-03 | 成都市极米科技有限公司 | Damping focusing projection display device |
| CN105842966A (en) * | 2016-06-14 | 2016-08-10 | 刘玲 | Intelligent adjustable projector |
| CN106597781A (en) * | 2015-10-15 | 2017-04-26 | 南靖万利达科技有限公司 | Projector focusing mechanism |
| CN107065407A (en) * | 2017-04-13 | 2017-08-18 | 合肥宝龙达信息技术有限公司 | A kind of micro projector focusing structure |
| CN115268187A (en) * | 2022-08-02 | 2022-11-01 | 晋江市维夏智能科技有限公司 | Projection display equipment |
-
2013
- 2013-08-13 CN CN201320493521.6U patent/CN203365895U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104284122A (en) * | 2014-09-28 | 2015-01-14 | 联想(北京)有限公司 | Information processing method, electronic device and projector |
| CN104284122B (en) * | 2014-09-28 | 2018-08-31 | 联想(北京)有限公司 | A kind of information processing method and electronic equipment, projector |
| CN106597781A (en) * | 2015-10-15 | 2017-04-26 | 南靖万利达科技有限公司 | Projector focusing mechanism |
| CN105301735A (en) * | 2015-11-24 | 2016-02-03 | 成都市极米科技有限公司 | Damping focusing projection display device |
| CN105301735B (en) * | 2015-11-24 | 2018-05-08 | 成都市极米科技有限公司 | One kind damping focusing projection display equipment |
| CN105842966A (en) * | 2016-06-14 | 2016-08-10 | 刘玲 | Intelligent adjustable projector |
| CN107065407A (en) * | 2017-04-13 | 2017-08-18 | 合肥宝龙达信息技术有限公司 | A kind of micro projector focusing structure |
| CN115268187A (en) * | 2022-08-02 | 2022-11-01 | 晋江市维夏智能科技有限公司 | Projection display equipment |
| CN115268187B (en) * | 2022-08-02 | 2024-04-19 | 深圳市艾克斯视讯科技有限公司 | Projection display equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN HUOLE TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: HU ZHENYU Effective date: 20140409 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 413100 YIYANG, HUNAN PROVINCE TO: 518000 SHENZHEN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140409 Address after: The central Shenzhen city of Guangdong Province, 518000 Keyuan Road, Nanshan District science and Technology Park No. 15 Kexing Science Park Building 4 unit B floor 10 No. 01 Patentee after: SHENZHEN HOLATEK Co.,Ltd. Address before: 413100 No. 232, Qingyun mountain road, Hunan, Yuanjiang Patentee before: Hu Zhenyu |
|
| CX01 | Expiry of patent term |
Granted publication date: 20131225 |
|
| CX01 | Expiry of patent term |