Novel galvanometer structure for expanding pixel resolution

Abstract

The utility model discloses a novel galvanometer structure for expanding pixel resolution, which comprises a fixed base, a spring piece, a lens, a driving magnet and a driving coil, and is characterized in that the spring piece is positioned on the upper end side of the fixed base, and the lens is arranged on the spring piece; two elastic arms are arranged at the edge part of the spring piece, and fixed parts at the tail ends of the elastic arms are respectively fastened and mounted on the fixed base; the driving magnet is mounted on the magnet mounting part of the spring piece, and the driving coil is fastened and mounted on the fixed base; the driving coil is in a circular ring shape, a coil through hole is formed in the center of the driving coil, and the driving magnet is in a cylinder shape and extends into the coil through hole. A magnet connecting column is arranged at the upper end part of the driving magnet, the magnet connecting column is embedded and inserted into a magnet mounting hole of the magnet mounting part from bottom to top, and the magnet connecting column is fixedly connected with the magnet mounting part in a dispensing manner. By means of the structural design, the high-speed transmission device has the advantages of being novel in structural design and good in structural compactness.

Description

Technical Field

[0001] This utility model relates to the field of optical device technology, and in particular to a novel galvanometer structure for extending pixel resolution. Background Technology

[0002] Chinese utility model patent with patent number ZL202420845663.2 and title "A Novel Galvanometer Device" discloses the following technical solution: A novel galvanometer device includes a support base, a reed, a lens, a driving magnet, and a driving coil. The driving magnet is mounted on the reed, and the driving coil is mounted on the support base, with the driving magnet and driving coil facing each other. The reed includes an annular base, and the lens is mounted at a circular through-hole in the annular base. Two elastic arms extending radially outward are provided at the outer edge of the annular base. The elastic arms are radially aligned, and each elastic arm has a fixing part at its outer end. Each fixing part is fastened to the bearing base. The outer edge of the annular base also has an outwardly protruding magnet mounting part, and the driving magnet is mounted on the magnet mounting part. Each fixing part has a positioning hole. The bearing base has an upwardly protruding mounting boss corresponding to each fixing part. Each mounting boss has a positioning post on its upper surface. The positioning post of each mounting boss is inserted into the positioning hole on the corresponding side. Each fixing part of the spring is fastened to the mounting boss on the corresponding side by fastening screws.

[0003] When the aforementioned novel galvanometer device is in operation, the magnetic field generated after the drive coil is energized acts on the drive magnet, thereby causing the magnet mounting part of the reed to rotate and swing about the axis formed by the two elastic arms, and finally causing the lens mounted on the annular base of the reed to rotate and swing.

[0004] It should be noted that the above-mentioned new galvanometer device still has the following defects. Specifically, the driving magnet and driving coil of the new galvanometer device adopt an upper and lower layer layout, that is, the driving magnet is installed on the magnet mounting part of the reed and the driving magnet is located above the driving coil. This upper and lower layer layout of the driving magnet and driving coil will increase the thickness of the entire galvanometer device and result in poor structural compactness. Utility Model Content

[0005] The purpose of this invention is to provide a novel galvanometer structure for extended pixel resolution, which addresses the shortcomings of existing technologies. This novel galvanometer structure for extended pixel resolution features a novel design and good structural compactness.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution.

[0007] A novel galvanometer structure for extended pixel resolution includes a fixed base, a spring plate, a lens, a driving magnet, and a driving coil. The spring plate is located on the upper side of the fixed base, and the lens is mounted on the spring plate.

[0008] The edge of the spring sheet is provided with two elastic arms, and the end of each elastic arm is provided with a fixing part, and each fixing part is fastened to the fixing base.

[0009] The edge of the spring sheet is also provided with a magnet mounting part located next to the lens. The driving magnet is installed in the magnet mounting part of the spring sheet, and the driving coil is fastened to the fixed base and arranged vertically aligned with the driving magnet.

[0010] The drive coil is circular in shape, and there is a through hole in the center of the drive coil;

[0011] The driving magnet is cylindrical and extends into the through hole of the driving coil. The upper end of the driving magnet is provided with an upwardly protruding magnetic connecting post. The magnetic mounting part of the spring sheet has a vertically penetrating magnetic mounting hole corresponding to the magnetic connecting post. The magnetic connecting post of the driving magnet is inserted into the magnetic mounting hole from bottom to top, and the magnetic connecting post is fastened to the magnetic mounting part of the spring sheet by adhesive application.

[0012] The upper surface of the fixed base is provided with a base groove corresponding to the drive coil. The bottom surface of the base groove is provided with an upwardly protruding coil positioning protrusion corresponding to the coil through hole. The coil positioning protrusion of the fixed base extends into the coil through hole of the drive coil, and the drive coil is fastened to the base groove by adhesive dispensing.

[0013] The lower surface of the fixed base is provided with a base recessed groove, and a PCB circuit board is embedded in the base recessed groove. The PCB circuit board is fastened to the base recessed groove by locking screws.

[0014] The edge of the fixed base has a clearance notch that connects the upper recess and the lower recess of the base. The pins of the drive coil pass through the clearance notch and are soldered to the PCB circuit board.

[0015] The upper surface of the fixed base is provided with upward protruding base fixing posts corresponding to each fixing part of the spring sheet, and each fixing part is fastened to the corresponding base fixing post by adhesive application.

[0016] The two elastic arms are arranged symmetrically about the center of the lens.

[0017] The fixing base is a die-cast zinc alloy part or a die-cast aluminum alloy part.

[0018] Compared with the prior art, this utility model has the following advantages: Specifically, the driving magnet of this utility model extends into the through hole of the driving coil, that is, the driving magnet of this utility model is assembled with the driving coil in an embedded manner; compared with the prior art, this embedded assembly method can effectively reduce the overall thickness of the galvanometer, thereby improving the overall structural compactness of the galvanometer. Therefore, the novel extended pixel resolution galvanometer structure of this utility model has the advantages of novel structural design and good structural compactness. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is an exploded view of the present invention.

[0022] Figure 3 This is an exploded view of the present invention from another perspective.

[0023] exist Figures 1 to 3 This includes:

[0024] 1-Fixed base; 11-Base upper recessed groove; 12-Coil positioning protrusion; 13-Base lower recessed groove; 14-Clearing notch; 15-Base fixing post; 2-Spring plate; 21-Elastic arm; 22-Fixing part; 23-Magnet mounting part; 231-Magnet mounting hole; 3-Lens; 4-Drive magnet; 41-Magnet connecting post; 5-Drive coil; 51-Coil through hole; 52-Pin; 6-PCB circuit board; 7-Locking screw. Detailed Implementation

[0025] The present invention will now be described in conjunction with specific embodiments.

[0026] Example 1, as Figures 1 to 3 As shown, a novel extended pixel resolution galvanometer structure includes a fixed base 1, a spring plate 2, a lens 3, a driving magnet 4, and a driving coil 5. The spring plate 2 is located on the upper side of the fixed base 1, and the lens 3 is mounted on the spring plate 2.

[0027] Among them, such as Figures 1 to 3As shown, the edge of the spring sheet 2 is provided with two elastic arms 21, and the end of each elastic arm 21 is provided with a fixing part 22. Each fixing part 22 is fastened to the fixing base 1. Specifically, the upper surface of the fixing base 1 is provided with an upwardly protruding base fixing post 15 corresponding to each fixing part 22 of the spring sheet 2. Each fixing part 22 is fastened to the corresponding base fixing post 15 by adhesive application.

[0028] Furthermore, such as Figure 1 and Figure 2 As shown, the edge of the spring plate 2 is also provided with a magnet mounting part 23 located next to the lens 3. The driving magnet 4 is installed in the magnet mounting part 23 of the spring plate 2. The driving coil 5 is fastened to the fixed base 1 and the driving coil 5 and the driving magnet 4 are arranged vertically aligned.

[0029] Furthermore, such as Figures 1 to 3 As shown, the drive coil 5 is in the shape of a ring, and the center of the drive coil 5 has a coil through hole 51; the drive magnet 4 is in the shape of a cylinder, and the drive magnet 4 extends into the coil through hole 51 of the drive coil 5.

[0030] And also, such as Figure 1 and Figure 2 As shown, the upper end of the driving magnet 4 is provided with an upwardly protruding magnet connecting post 41. The magnet mounting part 23 of the spring plate 2 is provided with a vertically penetrating magnet mounting hole 231 corresponding to the magnet connecting post 41. The magnet connecting post 41 of the driving magnet 4 is inserted into the magnet mounting hole 231 from bottom to top, and the magnet connecting post 41 is fastened to the magnet mounting part 23 of the spring plate 2 by adhesive application.

[0031] It should be explained that, in the process of installing the driving magnet 4 into the magnet mounting part 23 of the spring plate 2, the magnet connecting post 41 of the driving magnet 4 is first inserted into the magnet mounting hole 231 of the magnet mounting part 23, and then the glue is applied and the driving magnet 4 is fixedly connected to the magnet mounting part 23 by the glue application method.

[0032] It should be emphasized that in this embodiment, the driving magnet 4 extends into the coil through hole 51 of the driving coil 5, that is, the driving magnet 4 in this embodiment is assembled with the driving coil 5 by an embedded method; compared with the prior art, this embedded assembly method can effectively reduce the overall thickness of the galvanometer, thereby improving the overall structural compactness of the galvanometer.

[0033] In summary, the novel extended pixel resolution galvanometer structure of this embodiment has the advantages of novel structural design and good structural compactness through the above structural design.

[0034] Example 2, as Figure 1 and Figure 2As shown, the difference between this embodiment 2 and embodiment 1 is that: the upper surface of the fixed base 1 is provided with a base upper groove 11 corresponding to the drive coil 5, and the bottom surface of the base upper groove 11 is provided with an upward protruding coil positioning protrusion 12 corresponding to the coil through hole 51. The coil positioning protrusion 12 of the fixed base 1 extends into the coil through hole 51 of the drive coil 5, and the drive coil 5 is fastened to the base upper groove 11 by dispensing glue.

[0035] In addition, such as Figures 1 to 3 As shown, the difference between this embodiment 3 and embodiment 1 is that: a base recess 13 is provided on the lower surface of the fixed base 1, a PCB circuit board 6 is embedded in the base recess 13, and the PCB circuit board 6 is fastened to the base recess 13 by locking screws 7.

[0036] It should be noted that the edge of the fixed base 1 is provided with a clearance notch 14 that connects the upper recess 11 and the lower recess 13 of the base. The pins 52 of the drive coil 5 pass through the clearance notch 14 and are soldered to the PCB circuit board 6.

[0037] In this embodiment, the drive coil 5 is securely installed in the upper recess 11 of the base on the upper surface of the fixed base 1, and the PCB circuit board 6 is securely installed in the lower recess 13 of the base on the lower surface of the fixed base 1. The pins 52 of the drive coil 5 are soldered to the pads of the PCB circuit board 6 through the clearance notch 14 of the fixed base 1. The above-mentioned installation structure design of the drive coil 5 and the PCB circuit board 6 can further reduce the overall thickness of the galvanometer, thereby further improving the overall structural compactness of the galvanometer.

[0038] In this second embodiment, the drive coil 5 is installed and positioned by cooperating with the coil positioning protrusion 12 of the fixed base 1 through the coil through hole 51. This positioning structure design can effectively improve the convenience of the drive coil 5 during assembly.

[0039] Example 3, as Figures 1 to 3 As shown, the difference between this embodiment 3 and embodiment 1 is that the two elastic arms 21 are arranged symmetrically about the center position of the lens 3.

[0040] Example 4, the difference between this Example 5 and Example 1 is that the fixed base 1 is a die-cast zinc alloy part or a die-cast aluminum alloy part.

[0041] The fixed base 1, which is die-cast from zinc alloy or aluminum alloy, has the advantages of good strength and hardness.

[0042] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A novel galvanometer structure for extending pixel resolution, comprising a fixed base (1), a spring sheet (2), a mirror sheet (3), a driving magnet (4), and a driving coil (5), wherein the spring sheet (2) is arranged on the upper end side of the fixed base (1), and the mirror sheet (3) is arranged on the spring sheet (2). The edge of the spring sheet (2) is provided with two elastic arms (21), and the end of each elastic arm (21) is provided with a fixed part (22), and each fixed part (22) is tightly installed on the fixed base (1). The edge of the spring sheet (2) is further provided with a magnet mounting part (23) beside the mirror sheet (3), the driving magnet (4) is arranged on the magnet mounting part (23) of the spring sheet (2), and the driving coil (5) is tightly installed on the fixed base (1) and vertically aligned with the driving magnet (4). characterized in that The driving coil (5) is in the shape of a ring, and the center of the driving coil (5) has a coil through hole (51). The driving magnet (4) is in the shape of a cylinder, the driving magnet (4) extends into the coil through hole (51) of the driving coil (5), the upper end of the driving magnet (4) is provided with a magnet connecting column (41) protruding upward, the magnet mounting part (23) of the spring sheet (2) is provided with a vertically penetrating magnet mounting hole (231) corresponding to the magnet connecting column (41), the magnet connecting column (41) of the driving magnet (4) is embedded in the magnet mounting hole (231) from bottom to top, and the magnet connecting column (41) is tightly fixed to the magnet mounting part (23) of the spring sheet (2) by glue fixing.

2. The galvanometer structure of claim 1, wherein: The upper surface of the fixed base (1) is provided with a base upper sink groove (11) corresponding to the driving coil (5), the bottom surface of the base upper sink groove (11) is provided with a coil positioning protrusion (12) protruding upward corresponding to the coil through hole (51), the coil positioning protrusion (12) of the fixed base (1) extends into the coil through hole (51) of the driving coil (5), and the driving coil (5) is tightly fixed in the base upper sink groove (11) by glue fixing.

3. The galvanometer structure of claim 2, wherein: The lower surface of the fixed base (1) is provided with a base lower sink groove (13), the PCB circuit board (6) is embedded in the base lower sink groove (13), and the PCB circuit board (6) is tightly fixed in the base lower sink groove (13) by locking screws (7). The edge of the fixed base (1) is provided with an avoidance gap (14) connecting the base upper sink groove (11) and the base lower sink groove (13), the pin (52) of the driving coil (5) passes through the avoidance gap (14) and is welded with the PCB circuit board (6).

4. The galvanometer structure of claim 1, wherein: The upper surface of the fixed base (1) is provided with a base fixing column (15) protruding upward corresponding to each fixed part (22) of the spring sheet (2), and each fixed part (22) is tightly fixed to the corresponding base fixing column (15) by glue fixing.

5. The galvanometer structure of claim 1, wherein: The two elastic arms (21) are arranged in central symmetry about the center of the mirror sheet (3).

6. The galvanometer structure of claim 1, wherein: The fixed base (1) is a die-cast zinc alloy or a die-cast aluminum alloy.

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