CN221175126U - Vibrating mirror driving device and projector - Google Patents
Vibrating mirror driving device and projector Download PDFInfo
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- CN221175126U CN221175126U CN202323369106.2U CN202323369106U CN221175126U CN 221175126 U CN221175126 U CN 221175126U CN 202323369106 U CN202323369106 U CN 202323369106U CN 221175126 U CN221175126 U CN 221175126U
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- mounting groove
- circuit board
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- 238000005452 bending Methods 0.000 claims description 19
- 238000004804 winding Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 230000008093 supporting effect Effects 0.000 abstract description 4
- 230000003287 optical effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 4
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of optical image equipment, and particularly relates to a vibrating mirror driving device and a projector, wherein the vibrating mirror driving device comprises a shell, a base, a driving assembly and a carrier, a hollow cavity is arranged between the shell and the base, the driving assembly and the carrier are arranged in the hollow cavity, and the base is connected with the carrier through a bearing. According to the utility model, the bearing design is additionally arranged between the base and the carrier, and when the driving component drives the carrier to rotate relative to the base, the bearing design not only can provide a better supporting effect for the carrier, but also can enable the rotating action of the carrier to be stable and reliable.
Description
Technical Field
The utility model belongs to the technical field of optical image equipment, and particularly relates to a vibrating mirror driving device and a projector.
Background
The galvanometer is a component in the projector optical machine, and the galvanometer usually realizes the rotation action of the lens through a driving device. The conventional galvanometer driving device generally comprises a base, a carrier and a driving assembly, wherein a lens is mounted on the carrier, and the carrier is rotated relative to the base through the driving assembly, so that the rotation of the lens is realized. When the carrier rotates, the carrier is suspended relatively to the base, so that stability problem exists during the rotation, and the precision of the projector is reduced.
Disclosure of utility model
The present utility model is directed to the above-mentioned technical problems, and an object of the present utility model is to provide a galvanometer driving device and a projector.
The first aspect of the utility model provides a vibrating mirror driving device, which comprises a shell, a base, a driving assembly and a carrier, wherein a hollow cavity is arranged between the shell and the base, the driving assembly and the carrier are arranged in the hollow cavity, and the base is connected with the carrier through a bearing.
According to the utility model, the bearing design is additionally arranged between the base and the carrier, and when the driving component drives the carrier to rotate relative to the base, the bearing design not only can provide a better supporting effect for the carrier, but also can enable the rotating action of the carrier to be stable and reliable.
Optionally, a carrier mounting groove is formed in the top end of the base, and a pillar mounting hole penetrating through the base is formed in the center of the base;
The carrier is arranged in the carrier mounting groove, a bearing mounting groove is formed in the carrier, and the bearing is arranged and connected in the bearing mounting groove;
The vibrating mirror driving device further comprises a support column, the support column penetrates through the support column mounting hole, the lower portion of the support column is connected with the base, and the upper portion of the support column is connected with the middle portion of the bearing.
Optionally, an annular protrusion is disposed in the bearing mounting groove, and the bearing is disposed at an upper end of the annular protrusion.
Optionally, a spring is arranged between the top end of the base and the carrier, the spring is sleeved outside the support, the bottom end of the spring is abutted to the top end of the base, and the top end of the spring is abutted to the annular protrusion.
Optionally, the bearing is a ceramic spherical bearing.
Optionally, the pillar middle part is provided with the jump ring, the jump ring butt is in the base top.
Optionally, the post tip has a post flange that restrains the bearing under the post flange.
Optionally, the lower part of the support column is fixed with the base through a fixing bolt.
Optionally, a spacer is disposed between the fixing bolt and the base.
Optionally, a lens mounting groove for mounting a lens is formed in the top end of the carrier, and the bearing mounting groove is formed in the bottom end of the lens mounting groove.
Optionally, the driving component comprises a plurality of magnets and a plurality of coils, and the coils are arranged around the carrier;
The vibrating mirror driving device further comprises a support, the support is located in the hollow cavity and located at the upper end of the base, magnets are arranged around the support, and the coils and the magnets are arranged inside and outside the magnets in an opposite mode.
Optionally, the support bottom is placed in the base upper end, be provided with the magnetite mounting groove around the support, each magnetite is installed in each magnetite mounting groove, the magnetite bottom is placed the base edge upper end.
Optionally, a winding post for connecting the coil is arranged on the outer side around the carrier.
Optionally, a bending part mounting groove is formed on the outer side of the carrier;
The vibrating mirror driving device further comprises a circuit board, the circuit board is located at the bottom end of the carrier, the circuit board is connected with each coil, a bending part is arranged on the circuit board and arranged in the bending part mounting groove, a position sensor is arranged on the outer side of the bending part, and the position sensor is located on the inner side of the corresponding magnet.
Optionally, a circuit board mounting groove is formed in one side of the base, the circuit board mounting groove is located outside the housing, and a portion of the circuit board extends to the circuit board mounting groove to be connected with an external circuit.
A second aspect of the present utility model provides a projector including the vibrating mirror driving device of the present utility model.
The beneficial effects are that: the utility model has at least one or more of the following advantages:
1. the utility model can provide better supporting function for the carrier and ensure the rotation of the carrier to be stable and reliable through the design of the bearing.
2. The base and the carrier are further connected through the combination of the bearing and the support, and the support is used for realizing stable connection operation between the carrier and the bearing. The middle part of the support column is provided with a clamp spring to ensure the position stability between the support column and the base.
3. According to the design of the spring, the bearing is clamped between the annular bulge and the support flange under the elastic action of the spring, so that tight contact between the bearing and the carrier is ensured, the carrier can rotate around the support under the action of the bearing when rotating, and the relative sliding between the carrier and the outer wall of the bearing is avoided, so that the rotating effect of the carrier is prevented from being influenced.
Drawings
FIG. 1 is a schematic diagram of a structure of the present utility model;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a cross-sectional view of FIG. 2;
FIG. 4 is an exploded view of FIG. 1;
FIG. 5 is a further exploded view of FIG. 4;
FIG. 6 is a further exploded view of FIG. 5;
FIG. 7 is a further exploded view of FIG. 6;
FIG. 8 is a schematic view of a portion of the structure of the present utility model at the top end of the base;
FIG. 9 is a schematic view of a portion of the structure of the strut of the present utility model;
FIG. 10 is a partial exploded view of the carrier of the present utility model;
Fig. 11 is a schematic view of a portion of the structure of fig. 10.
Detailed Description
The preferred embodiments of the present utility model will be described in detail below with reference to the attached drawings, so that the objects, features and advantages of the present utility model will be more clearly understood. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the utility model, but rather are merely illustrative of the true spirit of the utility model.
In the following description, for the purposes of explanation of various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. One skilled in the relevant art will recognize, however, that an embodiment may be practiced without one or more of the specific details. In other instances, well-known devices, structures, and techniques associated with the present application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.
Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In the following description, for the purposes of clarity of presentation of the structure and manner of operation of the present utility model, the description will be made with the aid of directional terms, but such terms as "forward," "rearward," "left," "right," "outward," "inner," "outward," "inward," "upper," "lower," etc. are to be construed as convenience, and are not to be limiting.
Referring to fig. 1 to 11, an embodiment of the present utility model provides a galvanometer driving apparatus, which includes a housing 1, a base 2, a driving assembly and a carrier 3, wherein a hollow cavity is formed between the housing 1 and the base 2, the housing 1 is preferably connected to an upper portion of the base 2, and the housing 1 and the base 2 are more preferably connected by a snap fit to form the hollow cavity. The drive assembly and carrier 3 are disposed within the hollow cavity. The shell 1 is provided with a light transmission opening communicated with the inside and the outside, and the lens 4 arranged on the carrier 3 is arranged towards the light transmission opening.
The base 2 is connected to the carrier 3 by means of bearings 5. According to the utility model, the design of the bearing 5 is additionally arranged between the base 2 and the carrier 3, and when the driving component drives the carrier 3 to rotate relative to the base 2, the bearing 5 can provide a better supporting effect for the carrier 3 and ensure that the rotating action of the carrier 3 is stable and reliable.
In an embodiment, the connection structure among the base 2, the bearing 5 and the carrier 3 may be a direct connection, preferably the following manner is adopted:
Referring to fig. 7 and 8, a carrier mounting groove 21 is provided at the top end of the base 2, and a pillar mounting hole 22 penetrating the base 2 up and down is provided at the center of the base 2. Referring to fig. 5, the carrier 3 is disposed in the carrier mounting groove 21. Referring to fig. 11, a bearing mounting groove 31 is provided in the carrier 3, and the bearing 5 is provided in the bearing mounting groove 31, and an outer wall of the bearing 5 is connected to an inner wall of the bearing mounting groove 31.
Referring to fig. 3, 6 to 9, the galvanometer driving apparatus further includes a post 6, the post 6 penetrating through a post mounting hole 22, a lower portion of the post 6 being connected to the base 2, and an upper portion of the post 6 being connected to a middle portion of the bearing 5. The support 6 is used to achieve a stable connection operation between the carrier 3 and the bearing 5. The middle part of the support column 6 is provided with a clamp spring to ensure the position stability between the support column 6 and the base 2.
In an embodiment, referring to fig. 3, an annular protrusion 32 is provided in the bearing mounting groove 31, and the bearing 5 is provided at an upper end of the annular protrusion 32.
In an embodiment, referring to fig. 3 and 7, a spring 7 is disposed between the top end of the base 2 and the carrier 3, the spring 7 is sleeved outside the support 6, the bottom end of the spring 7 abuts against the top end of the base 2, and the top end of the spring 7 abuts against the annular protrusion 32.
According to the design of the spring 7, the bearing 5 is clamped between the annular protrusion 32 and the support column 6 under the elastic action of the spring 7, so that tight contact between the bearing 5 and the carrier 3 is ensured, the carrier 3 can rotate around the support column 6 under the action of the bearing 5 when rotating, and the relative sliding between the carrier 3 and the outer wall of the bearing 5 is avoided, so that the rotating effect of the carrier 3 is prevented from being influenced.
Of course, other elastic elements can be used in the present utility model, and the technical effect can be achieved as well.
In one embodiment, the bearing 5 is a ceramic spherical bearing 5.
Of course, bearings of other structures can be used in the present utility model, and this technical effect can be achieved as well.
In an embodiment, referring to fig. 3, 7 and 9, a clamp spring 61 is provided in the middle of the pillar 6, and the clamp spring 61 abuts against the top end of the base 2.
The design of the snap spring 61 ensures the position stability between the support 6 and the base 2.
Specifically, a circle of snap spring grooves can be formed in the middle of the support column 6 along the periphery, and the snap springs 61 are arranged on the snap spring grooves.
In one embodiment, referring to fig. 3 and 9, the top end of the post 6 has a post flange 62, the post flange 62 restraining the bearing 5 under the post flange 62.
When the strut 6 is sheathed with the spring 7, the bearing 5 is clamped between the annular projection 32 and the strut flange 62 by the design of the strut flange 62.
In one embodiment, referring to fig. 3 and 7, the lower portion of the stay 6 is fixed to the base 2 by a fixing bolt 63.
In an embodiment, referring to fig. 3 and 7, a spacer 64 is provided between the fixing bolt 63 and the base 2.
In an embodiment, referring to fig. 10 and 11, the carrier 3 is provided at the top end with a lens mounting groove 33 for mounting the lens 4, and the lens mounting groove 33 is provided at the bottom end with a bearing mounting groove 31. I.e. the bearing 5 is located below the lens 4.
In an embodiment, the driving assembly may be a component capable of driving the rotational motion of the carrier 3 as in the prior art. Referring to fig. 3 to 11, the following design is preferably adopted:
The driving assembly comprises a plurality of magnets 81 and a plurality of coils 82, and the coils 82 are arranged around the carrier 3.
The vibrating mirror driving device further comprises a support 9, the support 9 is located in the hollow cavity and located at the upper end of the base 2, magnets 81 are arranged around the support 9, and each coil 82 and each magnet 81 are arranged in an inner-outer opposite mode.
The utility model realizes the rotation of the carrier 3 by the combination of the coil 82 and the magnet 81, and the lens 4 is mounted on the upper end of the carrier 3 and moves along with the carrier 3, thereby realizing the rotation of the lens 4.
In one embodiment, the bottom end of the support 9 is placed at the upper end of the base 2, magnet mounting grooves 91 are formed around the support 9, each magnet 81 is mounted in each magnet mounting groove 91, and the bottom end of each magnet 81 is placed at the upper end of the edge of the base 2.
In an embodiment, referring to fig. 10 and 11, the outer sides of the circumference of the carrier 3 are provided with winding posts 34 for connecting the coils 82, and the winding posts 34 are used for winding the connecting coils 82.
In one embodiment, referring to fig. 10, the carrier 3 is provided with a bent portion mounting groove 35 at the outside.
Referring to fig. 6 to 8, the galvanometer driving apparatus further includes a circuit board 10, the circuit board 10 is located at the bottom end of the carrier 3, the circuit board 10 is connected to each coil 82, and the circuit board 10 is used for supplying power to each coil 82. The circuit board 10 is provided with a bending portion 101, the bending portion 101 is disposed in the bending portion mounting groove 35, a position sensor 102 is mounted on the outer side of the bending portion 101, and the position sensor 102 is located on the inner side of the corresponding magnet 81. The position sensor 102 cooperates with the corresponding magnet 81 to monitor the rotational position of the carrier 3 and the lens 4.
When the top end of the base 2 is provided with the carrier mounting groove 21, the carrier mounting groove 21 is used for mounting the carrier 3 and the circuit board 10.
Referring to fig. 10, the bending part mounting groove 35 may be directly dug in the middle of the winding post 34, so that the bending part 101 and the position sensor 102 are located in the middle of the inner side of the coil 82 after the connecting coil 82 is wound on the winding post 34.
In one embodiment, the circuit board 10 is an FPC board.
In an embodiment, two bending part mounting grooves 35 are respectively formed on two adjacent sides of the outer side of the carrier 3, two bending parts 101 are arranged on the circuit board 10, each bending part 101 is arranged in a corresponding bending part mounting groove 35, and a position sensor 102 is mounted on the outer side of each bending part 101.
In an embodiment, referring to fig. 6 to 8, one side of the base 2 is provided with a circuit board mounting groove 23, the circuit board mounting groove 23 being located outside the housing 1, and a portion of the circuit board 10 extending to the circuit board mounting groove 23 to be connected to an external circuit.
Another embodiment of the present utility model provides a projector, including the galvanometer driving apparatus provided in each of the foregoing embodiments of the present utility model.
While the preferred embodiments of the present utility model have been described in detail, it will be appreciated that those skilled in the art, upon reading the above teachings, may make various changes and modifications to the utility model. Such equivalents are also intended to fall within the scope of the utility model as defined by the following claims.
Claims (10)
1. The utility model provides a galvanometer drive arrangement, includes shell, base, drive assembly and carrier, have the cavity between shell and the base, drive assembly with the carrier sets up in the cavity, its characterized in that, the base passes through the bearing and connects the carrier.
2. The galvanometer driving device according to claim 1, wherein a carrier mounting groove is provided at a top end of the base, and a post mounting hole penetrating up and down of the base is provided at a center of the base;
The carrier is arranged in the carrier mounting groove, a bearing mounting groove is formed in the carrier, and the bearing is arranged and connected in the bearing mounting groove;
The vibrating mirror driving device further comprises a support column, the support column penetrates through the support column mounting hole, the lower portion of the support column is connected with the base, and the upper portion of the support column is connected with the middle portion of the bearing.
3. The galvanometer driving device according to claim 2, wherein an annular protrusion is provided in the bearing mounting groove, and the bearing is provided at an upper end of the annular protrusion;
And/or a clamp spring is arranged in the middle of the support column and is abutted to the top end of the base;
and/or the post tip has a post flange that restrains the bearing under the post flange;
And/or the lower part of the support column is fixed with the base through a fixing bolt.
4. The galvanometer driving device according to claim 3, wherein a spring is provided between the top end of the base and the carrier, the spring is sleeved outside the support, the bottom end of the spring is abutted to the top end of the base, and the top end of the spring is abutted to the annular protrusion;
and/or a gasket is arranged between the fixing bolt and the base.
5. The galvanometer drive of claim 1, wherein the bearing is a ceramic spherical bearing.
6. The galvanometer drive of claim 1, wherein the carrier top is provided with a lens mounting slot for mounting a lens, and the lens mounting slot bottom is provided with the bearing mounting slot.
7. The galvanometer drive as set forth in any one of claims 1-6 wherein the drive assembly comprises a plurality of magnets and a plurality of coils, the coils being disposed around the carrier;
The vibrating mirror driving device further comprises a support, the support is located in the hollow cavity and located at the upper end of the base, magnets are arranged around the support, and the coils and the magnets are arranged inside and outside the magnets in an opposite mode.
8. The galvanometer driving device according to claim 7, wherein the bottom end of the bracket is placed at the upper end of the base, magnet mounting grooves are formed around the bracket, each magnet is mounted in each magnet mounting groove, and the bottom end of the magnet is placed at the upper end of the edge of the base;
And/or the outer sides of the periphery of the carrier are provided with winding posts for connecting the coils;
And/or the outer side of the carrier is provided with a bending part mounting groove; the vibrating mirror driving device further comprises a circuit board, the circuit board is located at the bottom end of the carrier, the circuit board is connected with each coil, a bending part is arranged on the circuit board and arranged in the bending part mounting groove, a position sensor is arranged on the outer side of the bending part, and the position sensor is located on the inner side of the corresponding magnet.
9. The galvanometer drive of claim 8, wherein a side of the base is provided with a circuit board mounting slot, the circuit board mounting slot being located outside the housing, a portion of the circuit board extending to the circuit board mounting slot for connection to an external circuit.
10. A projector comprising the galvanometer drive as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323369106.2U CN221175126U (en) | 2023-12-11 | 2023-12-11 | Vibrating mirror driving device and projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323369106.2U CN221175126U (en) | 2023-12-11 | 2023-12-11 | Vibrating mirror driving device and projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221175126U true CN221175126U (en) | 2024-06-18 |
Family
ID=91537259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323369106.2U Active CN221175126U (en) | 2023-12-11 | 2023-12-11 | Vibrating mirror driving device and projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221175126U (en) |
-
2023
- 2023-12-11 CN CN202323369106.2U patent/CN221175126U/en active Active
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