CN218413055U - Mirror assembly shakes - Google Patents
Mirror assembly shakes Download PDFInfo
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- CN218413055U CN218413055U CN202222670566.8U CN202222670566U CN218413055U CN 218413055 U CN218413055 U CN 218413055U CN 202222670566 U CN202222670566 U CN 202222670566U CN 218413055 U CN218413055 U CN 218413055U
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- outer frame
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- movable
- inner frame
- cantilever beam
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Abstract
The utility model discloses a galvanometer component, wherein a lens mounting frame body is arranged at the upper end side of a fixed base, the lens mounting frame body comprises a movable outer frame and a movable inner frame, a refraction lens is arranged in the movable inner frame, a first voice coil driving mechanism is in driving connection with the movable outer frame, and a second voice coil driving mechanism is in driving connection with the movable inner frame; two first spring pieces which are opposite to each other and arranged at intervals are arranged between the movable outer frame and the fixed base, each first spring piece comprises a first base part and a first cantilever beam part, the first base parts are arranged on the fixed base, and the first cantilever beam parts are connected with the movable outer frame; two second spring pieces which are just opposite to the second spring pieces arranged at intervals are arranged between the movable outer frame and the movable inner frame, each second spring piece comprises a second base part and a second cantilever beam part, the second base parts are installed on the movable outer frame, and the second cantilever beam parts are connected with the movable inner frame. Through the structure design, the utility model has the advantages of structural design is novel, reliable and stable nature is good, motion control is convenient and accurate.
Description
Technical Field
The utility model relates to a projection mirror technical field that shakes especially relates to a mirror subassembly shakes.
Background
A projector, also called a projector, is a device that can project images or videos onto a curtain or a wall, and is widely used in homes, offices, schools, and entertainment places.
In order to improve the projection pixels of the projector, a galvanometer device is generally adopted; the patent numbers are: zl201920376811.X, patent name: the Chinese utility model patent of a polarizer and a projector comprising the same discloses a projection galvanometer structure, wherein a fixed bracket of the projection galvanometer structure is arranged on an installation base through an elastic fixed plate, and a lens is arranged on the elastic fixed plate; the elastic fixing plate comprises a first fixing part, a second fixing part and a connecting part which are of an integral structure; when the projection galvanometer structure realizes double-axis swinging motion, swinging motions in two directions can affect each other, namely, when one direction is realized, the other direction can swing at the same time, so that the defects of inconvenient and inaccurate swinging motion control exist.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a mirror assembly that shakes to prior art not enough, should shake mirror assembly structural design novelty, reliable and stable nature is good, motion control is convenient and accurate.
In order to achieve the above purpose, the present invention is achieved by the following technical solutions.
A vibrating mirror assembly comprises a fixed base, wherein a lens mounting frame body is arranged on the upper end side of the fixed base, a refraction lens is arranged on the lens mounting frame body, and a first voice coil driving mechanism and a second voice coil driving mechanism are arranged between the lens mounting frame body and the fixed base;
the lens mounting frame body comprises a movable outer frame and a movable inner frame which are respectively in a rectangular full-enclosure shape, the movable inner frame is positioned on the inner side of the movable outer frame, the refraction lens is arranged in the movable inner frame, the first voice coil driving mechanism is in driving connection with the movable outer frame, and the second voice coil driving mechanism is in driving connection with the movable inner frame;
two first spring pieces which are arranged oppositely and at intervals and respectively extend along the driving direction of the first voice coil driving mechanism are arranged between the movable outer frame and the fixed base, and the two first spring pieces are positioned at two opposite sides of the movable outer frame; the first spring piece comprises a first base part and a first cantilever beam part which is integrated with the first base part into a whole, the first base part is arranged on the fixed base, and the first cantilever beam part is connected with the movable outer frame;
two second spring pieces which are opposite to each other and arranged at intervals and respectively extend along the driving direction of the second voice coil driving mechanism are arranged between the movable outer frame and the movable inner frame, and the two second spring pieces are positioned at two opposite sides of the movable inner frame; the second spring piece comprises a second base part and a second cantilever beam part integrated with the second base part, the second base part is installed on the movable outer frame, and the second cantilever beam part is connected with the movable inner frame.
The first base of the first spring piece is in a full-circle shape and surrounds the periphery of the first cantilever beam part, and the root of the first cantilever beam part is connected with one end of the first base;
the first base part is provided with a base mounting hole, the first cantilever beam part is provided with a first outer frame connecting hole, the fixed base is provided with a base connecting convex column corresponding to the base mounting hole, and the base connecting convex column of the fixed base is embedded and clamped in the base mounting hole of the first base part; the movable outer frame is provided with an outer frame connecting part corresponding to the first outer frame connecting hole, and the outer frame connecting part of the movable outer frame is embedded and clamped in the first outer frame connecting hole of the first cantilever beam part.
The second base of the second spring piece is in a full-circle shape and surrounds the periphery of the second cantilever beam part, and the root of the second cantilever beam part is connected with one end part of the second base;
the second base part is provided with an outer frame mounting hole, the second cantilever beam part is provided with a second inner frame connecting hole, the movable outer frame is provided with an outer frame connecting convex column corresponding to the outer frame mounting hole, and the outer frame connecting convex column of the movable outer frame is embedded and clamped in the outer frame mounting hole of the second base part; the movable inner frame is provided with an inner frame connecting part corresponding to the second inner frame connecting hole, and the inner frame connecting part of the movable inner frame is embedded and clamped in the second inner frame connecting hole of the second cantilever beam part.
The first spring piece and the second spring piece are metal spring pieces respectively.
The first voice coil driving mechanism comprises a first magnet arranged on the movable outer frame, and the fixed base is provided with a first driving solenoid positioned right below the first magnet;
the second voice coil driving mechanism comprises a second magnet arranged in the movable inner frame, and a second driving solenoid arranged right below the second magnet is arranged on the fixed base.
The fixed base is further provided with a PCB, and the first driving solenoid and the second driving solenoid are electrically connected with the PCB respectively.
Wherein, the movable outer frame is provided with a first magnetic shielding sheet positioned between the first magnet and the second spring sheet;
the movable inner frame is provided with a second magnetic shielding sheet positioned between the second magnet and the first spring sheet.
The utility model has the advantages that: the utility model discloses a galvanometer component, the lens installation frame body is installed on the upper end side of a fixed base, the lens installation frame body comprises a movable outer frame and a movable inner frame, a refraction lens is installed on the movable inner frame, a first voice coil driving mechanism is in driving connection with the movable outer frame, and a second voice coil driving mechanism is in driving connection with the movable inner frame; two first spring pieces which are arranged oppositely and at intervals and extend along the driving direction of the first voice coil driving mechanism respectively are arranged between the movable outer frame and the fixed base, each first spring piece comprises a first base part and a first cantilever beam part, the first base part is arranged on the fixed base, and the first cantilever beam parts are connected with the movable outer frame; two second spring pieces which are just opposite to each other and arranged at intervals and extend along the driving direction of the second voice coil driving mechanism are arranged between the movable outer frame and the movable inner frame, each second spring piece comprises a second base part and a second cantilever beam part, the second base parts are installed on the movable outer frame, and the second cantilever beam parts are connected with the movable inner frame. Through the structure design, the utility model has the advantages of structural design is novel, reliable and stable nature is good, motion control is convenient and accurate.
Drawings
The invention will be further described with reference to the drawings, but the embodiments in the drawings do not constitute any limitation of the invention.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an exploded view of fig. 1.
Fig. 3 is a schematic cross-sectional view of the present invention.
Fig. 4 is a schematic cross-sectional view of another embodiment of the present invention.
Fig. 1 to 4 include:
1-fixed base 11-base connecting convex column
2-lens mounting frame body 21-movable outer frame
211-outer frame connecting part 212-outer frame connecting convex column
22-movable inner frame 221-inner frame connecting part
3-refracting lens 41-first voice coil driving mechanism
411-first magnet 412-first drive coil
42-second Voice coil Driving mechanism 421-second magnet
422-second drive coil 51-first leaf spring
511-first base 5111-pedestal mounting hole
512-first cantilever beam portion 5121-first outer frame connecting hole
52-second spring leaf 521-second base
5211 outer frame mounting hole 522 second cantilever Beam portion
5221 second inner frame connecting hole 6 PCB Circuit Board
71-first magnetic shield sheet 72-second magnetic shield sheet.
Detailed Description
The present invention will be described with reference to specific embodiments.
As shown in fig. 1 to 4, a galvanometer assembly includes a fixed base 1, a lens mounting frame 2 installed on an upper end side of the fixed base 1, a refractive lens 3 installed on the lens mounting frame 2, and a first voice coil driving mechanism 41 and a second voice coil driving mechanism 42 installed between the lens mounting frame 2 and the fixed base 1.
The lens mounting frame 2 includes a movable outer frame 21 and a movable inner frame 22, which are rectangular and have a full-circle shape, respectively, the movable inner frame 22 is located at the inner side of the movable outer frame 21, the refractive lens 3 is mounted on the movable inner frame 22, the first voice coil driving mechanism 41 is in driving connection with the movable outer frame 21, and the second voice coil driving mechanism 42 is in driving connection with the movable inner frame 22.
Further, two first spring strips 51 which are arranged opposite to each other at intervals and respectively extend along the driving direction of the first voice coil driving mechanism 41 are arranged between the movable outer frame 21 and the fixed base 1, and the two first spring strips 51 are positioned at two opposite sides of the movable outer frame 21; the first spring piece 51 includes a first base portion 511 and a first cantilever beam portion 512 integrally formed with the first base portion 511, the first base portion 511 is attached to the fixed base 1, and the first cantilever beam portion 512 is connected to the movable outer frame 21.
Furthermore, two second spring strips 52 which are oppositely arranged at intervals and respectively extend along the driving direction of the second voice coil driving mechanism 42 are arranged between the movable outer frame 21 and the movable inner frame 22, and the two second spring strips 52 are positioned at the two opposite sides of the movable inner frame 22; the second spring piece 52 includes a second base portion 521 and a second cantilever beam portion 522 integrally formed with the second base portion 521, the second base portion 521 is attached to the movable outer frame 21, and the second cantilever beam portion 522 is connected to the movable inner frame 22.
It should be explained that the first spring plate 51 and the second spring plate 52 are metal spring plates; preferably, the first spring plate 51 and the second spring plate 52 may be stainless steel spring plates, respectively.
The utility model discloses a movable outer frame 21 is installed in fixed base 1 through two and just to the first spring leaf 51 of arranging, and the first basal portion 511 of each first spring leaf 51 is installed respectively and is fastened in fixed base 1, and two just to the edge part of movable outer frame 21 are installed respectively in the first cantilever roof beam portion 512 of the first spring leaf 51 of corresponding side; in the process that the first voice coil driving mechanism 41 drives the movable outer frame 21 to act, because the movable outer frame 21 is installed in a cantilever manner, the movable outer frame 21 can swing under the driving action of the first voice coil driving mechanism 41; because the movable outer frame 21 is installed through the two first spring pieces 51 which are opposite and arranged at intervals, the installation structure can lead the movable outer frame 21 to be stressed evenly, thereby improving the stability and the reliability of the swinging action of the movable outer frame 21.
Similarly, the movable inner frame 22 of the present invention is mounted to the movable outer frame 21 through two second spring strips 52 which are arranged opposite to each other, the second base portion 521 of each second spring strip 52 is mounted and fastened to the movable outer frame 21, and two opposite edge portions of the movable inner frame 22 are mounted to the second cantilever beam portions 522 of the second spring strips 52 on the corresponding sides; in the process that the second voice coil driving mechanism 42 drives the movable inner frame 22 to act, because the movable inner frame 22 is installed in a cantilever manner, the movable inner frame 22 can swing under the driving action of the second voice coil driving mechanism 42; because the movable inner frame 22 is mounted through the two second spring pieces 52 which are opposite to each other and are arranged at intervals, the mounting structure can enable the movable inner frame 22 to be stressed evenly, so that the stability and the reliability of the swinging action of the movable inner frame 22 are improved.
It should be noted that the driving direction of the first voice coil driving mechanism 41 of the present invention is perpendicular to the driving direction of the second voice coil driving mechanism 42, that is, the refractive lens 3 mounted on the movable inner frame 22 can realize the biaxial movement under the driving action of the first voice coil driving mechanism 41 and the second voice coil driving mechanism 42. In addition, the first spring plate 51 and the second spring plate 52 are mutually independent structures, the movable outer frame 21 mounted on the fixed base 1 through the first spring plate 51 can be independently controlled through the first voice coil driving mechanism 41, the movable inner frame 22 mounted on the movable outer frame 21 through the second spring plate 52 can be independently controlled through the second voice coil driving mechanism 42, and the mutually independent structural design is convenient for realizing independent control of swinging actions of all shafts and is beneficial to improving control accuracy.
Synthesize the above-mentioned condition and know, through above-mentioned structural design, the utility model has the advantages of structural design is novel, reliable and stable nature is good, motion control is convenient and accurate.
As a preferred embodiment, as shown in fig. 1 to 3, the first spring piece 51 of the present invention can be used to connect the fixed base 1 and the movable outer frame 21 in the following manner: the first base 511 of the first spring plate 51 is in a full-circle shape and surrounds the periphery of the first cantilever beam portion 512, and the root of the first cantilever beam portion 512 is connected with one end of the first base 511; the first base 511 is provided with a base mounting hole 5111, the first cantilever beam portion 512 is provided with a first outer frame connecting hole 5121, the fixed base 1 is provided with a base connecting convex column 11 corresponding to the base mounting hole 5111, and the base connecting convex column 11 of the fixed base 1 is embedded and clamped in the base mounting hole 5111 of the first base 511; the movable frame 21 is provided with a frame connecting portion 211 corresponding to the first frame connecting hole 5121, and the frame connecting portion 211 of the movable frame 21 is inserted into the first frame connecting hole 5121 of the first cantilever beam portion 512.
The utility model discloses a first basal portion 511 of first spring leaf 51 is connected with fixed baseplate 1 through the eye-splice mode, and movable frame 21 is connected through the first cantilever roof portion 512 of eye-splice mode with first spring leaf 51, and above-mentioned connected mode has simple to operate swift advantage.
As a preferred embodiment, as shown in fig. 1, fig. 2 and fig. 4, the second spring piece 52 of the present invention can be used to connect the movable outer frame 21 and the movable inner frame 22 in the following manner: the second base 521 of the second spring piece 52 is in a full-circle shape and surrounds the periphery of the second cantilever beam portion 522, and the root of the second cantilever beam portion 522 is connected with one end of the second base 521; the second base 521 is provided with an outer frame mounting hole 5211, the second cantilever beam portion 522 is provided with a second inner frame connecting hole 5221, the movable outer frame 21 is provided with an outer frame connecting boss 212 corresponding to the outer frame mounting hole 5211, and the outer frame connecting boss 212 of the movable outer frame 21 is embedded in the outer frame mounting hole 5211 of the second base 521; the inner frame connecting portion 221 of the movable inner frame 22 is disposed corresponding to the second inner frame connecting hole 5221, and the inner frame connecting portion 221 of the movable inner frame 22 is embedded in the second inner frame connecting hole 5221 of the second cantilever beam portion 522.
The utility model discloses a second base 521 of second spring leaf 52 is connected with activity frame 21 through the eye-splice mode, and activity inside casing 22 is connected through the second cantilever roof beam portion 522 of eye-splice mode with second spring leaf 52, and above-mentioned connected mode has simple to operate swift advantage.
As a preferred embodiment, as shown in fig. 2, the first voice coil driving mechanism 41 and the second voice coil driving mechanism 42 of the present invention may be designed as follows: the first voice coil driving mechanism 41 includes a first magnet 411 installed on the movable outer frame 21, and the fixed base 1 is installed with a first driving coil package 412 located right below the first magnet 411; the second voice coil driving mechanism 42 includes a second magnet 421 mounted on the movable inner frame 22, and the fixed base 1 is mounted with a second driving coil 422 located right below the second magnet 421.
In addition, the fixed base 1 is further provided with a PCB circuit board 6, and the first driving coil 412 and the second driving coil 422 are electrically connected to the PCB circuit board 6 respectively.
As a preferred embodiment, as shown in fig. 1 and 2, the movable outer frame 21 is provided with a first magnetic shielding sheet 71 located between the first magnet 411 and the second spring sheet 52; further, the movable inner frame 22 is provided with a second magnetic shield piece 72 located between the second magnet 421 and the first spring piece 51.
To the utility model discloses a first magnetism shielding piece 71, it can realize the magnetic force shielding effect between first magnetite 411 and the second spring leaf 52 to avoid the magnetic force of first magnetite 411 to act on second spring leaf 52. To the utility model discloses a second magnetism shielding piece 72, it can realize the magnetic shielding effect between second magnetite 421 and the first spring leaf 51 to avoid the magnetic force of second magnetite 421 to act on first spring leaf 51. Above-mentioned magnetism shielding structural design can further improve the utility model discloses a reliable and stable nature.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (7)
1. A galvanometer assembly comprises a fixed base (1), a lens mounting frame body (2) is arranged on the upper end side of the fixed base (1), a refraction lens (3) is arranged on the lens mounting frame body (2), and a first voice coil driving mechanism (41) and a second voice coil driving mechanism (42) are arranged between the lens mounting frame body (2) and the fixed base (1);
the method is characterized in that: the lens mounting frame body (2) comprises a movable outer frame (21) and a movable inner frame (22) which are respectively in a rectangular full-circle shape, the movable inner frame (22) is positioned on the inner side of the movable outer frame (21), the refraction lens (3) is arranged on the movable inner frame (22), a first voice coil driving mechanism (41) is in driving connection with the movable outer frame (21), and a second voice coil driving mechanism (42) is in driving connection with the movable inner frame (22);
two first spring pieces (51) which are opposite to each other and arranged at intervals and respectively extend along the driving direction of the first voice coil driving mechanism (41) are arranged between the movable outer frame (21) and the fixed base (1), and the two first spring pieces (51) are positioned at two opposite sides of the movable outer frame (21); the first spring piece (51) comprises a first base part (511) and a first cantilever beam part (512) integrated with the first base part (511), the first base part (511) is installed on the fixed base (1), and the first cantilever beam part (512) is connected with the movable outer frame (21);
two second spring pieces (52) which are opposite to each other and arranged at intervals and respectively extend along the driving direction of the second voice coil driving mechanism (42) are arranged between the movable outer frame (21) and the movable inner frame (22), and the two second spring pieces (52) are positioned at two opposite sides of the movable inner frame (22); the second spring piece (52) comprises a second base part (521) and a second cantilever beam part (522) which is integrated with the second base part (521), the second base part (521) is installed on the movable outer frame (21), and the second cantilever beam part (522) is connected with the movable inner frame (22).
2. A galvanometer assembly according to claim 1, wherein: the first base part (511) of the first spring piece (51) is in a full-circle shape and surrounds the periphery of the first cantilever beam part (512), and the root of the first cantilever beam part (512) is connected with one end part of the first base part (511);
a base mounting hole (5111) is formed in the first base (511), a first outer frame connecting hole (5121) is formed in the first cantilever beam portion (512), a base connecting convex column (11) is arranged on the fixed base (1) corresponding to the base mounting hole (5111), and the base connecting convex column (11) of the fixed base (1) is embedded and clamped in the base mounting hole (5111) of the first base (511); the movable outer frame (21) is provided with an outer frame connecting part (211) corresponding to the first outer frame connecting hole (5121), and the outer frame connecting part (211) of the movable outer frame (21) is embedded and clamped in the first outer frame connecting hole (5121) of the first cantilever beam part (512).
3. A galvanometer assembly according to claim 1, wherein: the second base part (521) of the second spring piece (52) is in a full-circle shape and surrounds the periphery of the second cantilever beam part (522), and the root of the second cantilever beam part (522) is connected with one end part of the second base part (521);
an outer frame mounting hole (5211) is formed in the second base (521), a second inner frame connecting hole (5221) is formed in the second cantilever beam portion (522), an outer frame connecting convex column (212) is arranged on the movable outer frame (21) corresponding to the outer frame mounting hole (5211), and the outer frame connecting convex column (212) of the movable outer frame (21) is embedded in the outer frame mounting hole (5211) of the second base (521); the movable inner frame (22) is provided with an inner frame connecting part (221) corresponding to the second inner frame connecting hole (5221), and the inner frame connecting part (221) of the movable inner frame (22) is embedded in the second inner frame connecting hole (5221) of the second cantilever beam part (522).
4. A galvanometer assembly according to claim 1, wherein: the first spring piece (51) and the second spring piece (52) are metal spring pieces.
5. A galvanometer assembly according to claim 1, wherein: the first voice coil driving mechanism (41) comprises a first magnet (411) arranged on the movable outer frame (21), and the fixed base (1) is provided with a first driving solenoid (412) positioned right below the first magnet (411);
the second voice coil driving mechanism (42) comprises a second magnet (421) arranged on the movable inner frame (22), and a second driving coil pack (422) positioned right below the second magnet (421) is arranged on the fixed base (1).
6. A galvanometer assembly according to claim 5, wherein: the fixed base (1) is further provided with a PCB (printed circuit board) 6, and the first driving solenoid (412) and the second driving solenoid (422) are electrically connected with the PCB (6) respectively.
7. A galvanometer assembly according to claim 5, wherein: the movable outer frame (21) is provided with a first magnetic shielding sheet (71) positioned between the first magnet (411) and the second spring sheet (52);
the movable inner frame (22) is provided with a second magnetic shielding sheet (72) positioned between the second magnet (421) and the first spring sheet (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222670566.8U CN218413055U (en) | 2022-10-11 | 2022-10-11 | Mirror assembly shakes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222670566.8U CN218413055U (en) | 2022-10-11 | 2022-10-11 | Mirror assembly shakes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218413055U true CN218413055U (en) | 2023-01-31 |
Family
ID=85001966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222670566.8U Active CN218413055U (en) | 2022-10-11 | 2022-10-11 | Mirror assembly shakes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218413055U (en) |
-
2022
- 2022-10-11 CN CN202222670566.8U patent/CN218413055U/en active Active
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