Novel embedded galvanometer module

Abstract

The utility model discloses a novel embedded galvanometer module, which comprises a fixed base, a PCB (Printed Circuit Board), a lens, a spring piece, a magnet group and a coil group, the magnet group comprises four driving magnets which are distributed in an annular array, an elastic arm and a fixed part connected with the elastic arm are respectively arranged at the edge part of the spring piece between two adjacent driving magnets, and the fixed part is connected with the coil group. The fixing parts are respectively connected with the fixing base in a fastening manner; the coil group comprises four driving coils which are distributed in an annular array, and the four driving coils and the four driving magnets are vertically aligned; magnet mounting holes corresponding to the driving magnets are respectively formed in the edge part of the spring piece, and the driving magnets are respectively embedded and fixed in the corresponding magnet mounting holes; the middle position of each driving coil is provided with a coil through hole penetrating vertically, and the lower end of each driving magnet extends into the coil through hole of the corresponding driving coil. 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 embedded galvanometer module. Background Technology

[0002] Chinese invention patent application number 202410090362.8, entitled "A Galvanometer with Expandable Multi-Pixel Resolution," substantially discloses a galvanometer module. Specifically, the galvanometer with expandable multi-pixel resolution discloses the following technical solution: A galvanometer with expandable multi-pixel resolution includes a fixed base, a PCB circuit board, a lens, a spring, a magnet group, and a coil group. The PCB circuit board is mounted on the fixed base, and the lens and spring are respectively located above the fixed base, with the lens mounted on the spring. The magnet group includes four movable magnets arranged in a circular array, and each movable magnet is securely mounted to the spring body. The spring is provided with a fixed mounting part and a curved extension part between two adjacent movable magnets, and each fixed mounting part is connected to the spring body through the corresponding curved extension part. The spring body is connected as a single unit, with the fixed mounting part, bending extension part, and spring body forming an integral structure. Each fixed mounting part is connected to the PCB circuit board or fixed base via fasteners. The coil assembly includes four drive coils arranged in a circular array. Each drive coil is mounted on the fixed base and electrically connected to the PCB circuit board. The four drive coils are vertically aligned with four movable magnets, with each movable magnet positioned above its corresponding drive coil. When the galvanometer with expandable multi-pixel resolution is in 4x pixel motion mode, the four drive coils are sequentially energized, driving the four movable magnets to shift downward along the Z-axis sequentially. When the galvanometer with expandable multi-pixel resolution is in 2x pixel motion mode, the two diagonally arranged drive coils are sequentially energized, driving the corresponding two movable magnets to shift downward along the Z-axis sequentially.

[0003] During the assembly of the aforementioned galvanometer with expandable multi-pixel resolution, the PCB circuit board is first fastened to the upper surface of the fixed base with locking screws, so that the PCB circuit board is located around the light-transmitting hole of the base. Then, the four drive coils are fastened to the fixed base and each drive coil is electrically connected to the PCB circuit board. After the PCB circuit board and each drive coil are installed on the fixed base, the lens and each movable magnet are fastened to the corresponding position of the spring body of the spring. Then, the four fixed mounting parts of the spring are installed and fixed with fasteners.

[0004] It should be noted that the above-mentioned galvanometer with expandable multi-pixel resolution still has the following defects: the movable magnet and the corresponding drive coil adopt an upper and lower layer layout, that is, the movable magnet is installed on the spring and the movable magnet is located above the drive coil. This upper and lower layer layout of the drive magnet and drive coil will increase the thickness of the entire galvanometer device and result in poor structural compactness. Utility Model Content

[0005] The purpose of this utility model is to provide a novel embedded galvanometer module that addresses the shortcomings of existing technologies. This novel embedded galvanometer module has a novel structural design and good compactness.

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

[0007] A novel embedded galvanometer module includes a fixed base, a PCB circuit board, a lens, a spring plate, a magnet group, and a coil group. The PCB circuit board is fastened to the upper surface of the fixed base, and the lens and spring plate are respectively located above the fixed base, with the lens mounted on the spring plate.

[0008] The magnet assembly includes four driving magnets arranged in a ring array. Each driving magnet is fastened to the edge of the spring plate. The edge of the spring plate is provided with an elastic arm and a fixing part connected to the elastic arm between two adjacent driving magnets. Each fixing part is fastened to the fixing base.

[0009] The coil assembly includes four drive coils arranged in a circular array. Each drive coil is mounted on a fixed base, and the pins of each drive coil are soldered to the PCB circuit board. The four drive coils and four drive magnets are vertically aligned.

[0010] The edge of the spring sheet has vertical through-holes for each driving magnet. Each driving magnet is embedded and fixed in the corresponding magnetic mounting hole, and the lower end of each driving magnet extends downward to the bottom of the spring sheet.

[0011] Each drive coil has a vertical through hole in the middle, and the lower end of each drive magnet extends into the through hole of the corresponding drive coil.

[0012] The upper end of the driving magnet is provided with a magnet shoulder. The driving magnet is inserted into the corresponding magnet mounting hole from top to bottom. The magnet shoulder abuts against the upper surface of the spring sheet, and the driving magnet is fastened to the spring sheet by adhesive dispensing.

[0013] The upper surface of the fixed base is provided with a coil mounting hole corresponding to each of the drive coils, and the bottom surface of the coil mounting hole is provided with a coil positioning part that protrudes upward and whose outline shape is consistent with the outline shape of the coil through hole.

[0014] Each drive coil is respectively embedded and glued to be fixed in the corresponding coil mounting hole, and the positioning part of each coil extends into the coil through hole of the corresponding drive coil.

[0015] The PCB circuit board has vertical through holes for each of the drive coils.

[0016] Each of the fixed parts is in the shape of a ring, and each of the elastic arms includes a ring portion that surrounds the periphery of the corresponding fixed part and is in the shape of a ring. The ring portion is connected to the corresponding fixed part through a first connecting part, and the ring portion is connected to the spring sheet through a second connecting part.

[0017] The fixed base is provided with an upwardly protruding base fixing column corresponding to each fixed part. The base fixing column and the fixed base are an integral structure. Each fixed part is fitted and glued to the upper end of the corresponding base fixing column.

[0018] The fixing base is a die-cast zinc alloy part or a die-cast aluminum alloy part.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: 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 embedded galvanometer module of this utility model has the advantages of novel structural design and good structural compactness. Attached Figure Description

[0020] 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.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is an exploded view of the present invention.

[0023] Figure 3 This is a structural schematic diagram from another perspective of the present invention.

[0024] Figure 4 This is a partial cross-sectional schematic diagram of the present invention.

[0025] exist Figures 1 to 4This includes:

[0026] 1-Fixed base; 11-Coil mounting hole; 12-Coil positioning part; 13-Base fixing post; 2-PCB circuit board; 21-Clearing through hole; 3-Lens; 4-Spring sheet; 41-Elastic arm; 411-Circular part; 412-First connecting part; 413-Second connecting part; 42-Fixed part; 43-Magnet mounting hole; 5-Drive magnet; 51-Magnet shoulder; 6-Drive coil; 61-Pin; 62-Coil through hole. Detailed Implementation

[0027] The present invention will now be described in conjunction with specific embodiments.

[0028] Example 1, as Figures 1 to 4 As shown, a novel embedded galvanometer module includes a fixed base 1, a PCB circuit board 2, a lens 3, a spring plate 4, a magnet group, and a coil group. The PCB circuit board 2 is fastened to the upper surface of the fixed base 1. The lens 3 and the spring plate 4 are respectively located above the fixed base 1, and the lens 3 is mounted on the spring plate 4.

[0029] Specifically, such as Figures 1 to 4 As shown, the magnet assembly includes four driving magnets 5 arranged in a ring array. Each driving magnet 5 is fastened to the edge of the spring plate 4. An elastic arm 41 and a fixing part 42 connected to the elastic arm 41 are respectively provided between two adjacent driving magnets 5 on the edge of the spring plate 4. Each fixing part 42 is fastened to the fixing base 1.

[0030] And also, such as Figures 1 to 4 As shown, the coil assembly includes four driving coils 6 arranged in a circular array. Each driving coil 6 is mounted on a fixed base 1, and the pins 61 of each driving coil 6 are soldered to the PCB circuit board 2. The four driving coils 6 and four driving magnets 5 are vertically aligned.

[0031] Furthermore, such as Figures 1 to 4 As shown, the edge of the spring plate 4 is provided with vertically penetrating magnet mounting holes 43 corresponding to each driving magnet 5. Each driving magnet 5 is respectively embedded and fixed in the corresponding magnet mounting hole 43, and the lower end of each driving magnet 5 extends downward to the bottom of the spring plate 4.

[0032] Furthermore, such as Figures 1 to 4 As shown, each drive coil 6 has a vertical through hole 62 at its middle position, and the lower end of each drive magnet 5 extends into the through hole 62 of the corresponding drive coil 6.

[0033] It should be emphasized that in this embodiment, the driving magnet 5 extends into the coil through hole 62 of the driving coil 6, that is, the driving magnet 5 in this embodiment is assembled with the driving coil 6 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.

[0034] In summary, the novel embedded galvanometer module of this embodiment has the advantages of novel structural design and good structural compactness through the above structural design.

[0035] Example 2, as Figures 1 to 4 As shown, the difference between this embodiment 2 and embodiment 1 is that: the upper end of the driving magnet 5 is provided with a magnet shoulder 51, the driving magnet 5 is inserted into the corresponding magnet mounting hole 43 from top to bottom, the magnet shoulder 51 abuts against the upper surface of the spring sheet 4, and the driving magnet 5 is fastened to the spring sheet 4 by adhesive fixing.

[0036] When assembling the driving magnet 5 onto the spring plate 4, align the lower end of the driving magnet 5 with and insert it into the magnet mounting hole 43 of the spring plate 4, and use the magnet shoulder 51 of the driving magnet 5 to abut against the upper surface of the spring plate 4 to achieve the positioning of the driving magnet 5; after the driving magnet 5 is installed in the magnet mounting hole 43 of the spring plate 4, fasten the driving magnet 5 to the edge of the spring plate 4 by applying glue.

[0037] Example 3, as Figure 2 and Figure 4 As shown, the difference between this embodiment 3 and embodiment 1 is that: the upper surface of the fixed base 1 is provided with a coil mounting hole 11 corresponding to each drive coil 6, and the bottom surface of the coil mounting hole 11 is provided with a coil positioning part 12 that protrudes upward and whose outline shape is consistent with the outline shape of the coil through hole 62.

[0038] Each drive coil 6 is respectively embedded and glued to be fixed in the corresponding coil mounting hole 11, and each coil positioning part 12 extends into the coil through hole 62 of the corresponding drive coil 6.

[0039] When assembling the drive coil 6 onto the fixed base 1, the drive coil 6 is placed into the coil mounting hole 11 of the fixed base 1. The coil positioning part 12 at the bottom of the coil mounting hole 11 cooperates with the coil through hole 62 of the drive coil 6 to position the drive coil 6. After the drive coil 6 is accurately positioned in the coil mounting hole 11, the drive coil 6 is then fastened to the fixed base 1 by applying adhesive.

[0040] By cooperating with the coil positioning part 12 and the coil through hole 62, this embodiment 3 can achieve rapid and accurate positioning of the drive coil 6, thereby improving the efficiency and accuracy of the drive coil 6 assembly operation.

[0041] Example 4, as Figure 2 and Figure 4 As shown, the difference between this embodiment four and embodiment three is that: the PCB circuit board 2 has vertical through holes 21 for each driving coil 6.

[0042] Example 5, as Figure 1 As shown, the difference between this fifth embodiment and the first embodiment is that each fixing part 42 is in the shape of a ring, and each elastic arm 41 includes a ring part 411 that surrounds the corresponding fixing part 42 and is in the shape of a ring. The ring part 411 is connected to the corresponding fixing part 42 through the first connecting part 412, and the ring part 411 is connected to the spring sheet 4 through the second connecting part 413.

[0043] The fixed base 1 is provided with an upwardly protruding base fixing post 13 for each fixing part 42. The base fixing post 13 and the fixed base 1 are an integral structure. Each fixing part 42 is fitted and glued to the upper end of the corresponding base fixing post 13.

[0044] Example 6 differs from Example 1 in that the fixed base 1 is a die-cast zinc alloy part or a die-cast aluminum alloy part.

[0045] The fixed base 1, which is die-cast from zinc alloy or aluminum alloy, has the advantages of good strength and hardness.

[0046] 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 embedded galvanometer module, comprising a fixed base (1), a PCB circuit board (2), a lens (3), a spring sheet (4), a magnet assembly, and a coil assembly, wherein the PCB circuit board (2) is fastened to the upper surface of the fixed base (1), and the lens (3) and the spring sheet (4) are respectively located above the fixed base (1) and the lens (3) is mounted on the spring sheet (4); The magnet assembly includes four driving magnets (5) arranged in a ring array. Each driving magnet (5) is fastened to the edge of the spring plate (4). The edge of the spring plate (4) is provided with an elastic arm (41) and a fixing part (42) connected to the elastic arm (41) between two adjacent driving magnets (5). Each fixing part (42) is fastened to the fixing base (1). The coil assembly includes four drive coils (6) arranged in a ring array. Each drive coil (6) is mounted on a fixed base (1), and the pins (61) of each drive coil (6) are soldered to the PCB circuit board (2). The four drive coils (6) and four drive magnets (5) are vertically aligned. Its features are: The edge of the spring sheet (4) is provided with vertically penetrating magnet mounting holes (43) corresponding to each driving magnet (5). Each driving magnet (5) is embedded and fixed in the corresponding magnet mounting hole (43), and the lower end of each driving magnet (5) extends downward to the bottom of the spring sheet (4). Each drive coil (6) has a vertical through hole (62) in the middle position, and the lower end of each drive magnet (5) extends into the through hole (62) of the corresponding drive coil (6).

2. The novel embedded galvanometer module according to claim 1, characterized in that: The upper end of the driving magnet (5) is provided with a magnet shoulder (51). The driving magnet (5) is inserted into the corresponding magnet mounting hole (43) from top to bottom. The magnet shoulder (51) abuts against the upper surface of the spring sheet (4), and the driving magnet (5) is fastened to the spring sheet (4) by adhesive fixing.

3. The novel embedded galvanometer module according to claim 1, characterized in that: The upper surface of the fixed base (1) is provided with a coil mounting hole (11) corresponding to each of the drive coils (6), and the bottom surface of the coil mounting hole (11) is provided with a coil positioning part (12) that protrudes upward and whose outline shape is consistent with the outline shape of the coil through hole (62). Each drive coil (6) is respectively installed and glued to be fixed in the corresponding coil mounting hole (11), and each coil positioning part (12) extends into the coil through hole (62) of the corresponding drive coil (6).

4. The novel embedded galvanometer module according to claim 3, characterized in that: The PCB circuit board (2) has vertical through holes (21) for each of the driving coils (6).

5. A novel embedded galvanometer module according to claim 1, characterized in that: Each of the fixing parts (42) is in the shape of a ring, and each of the elastic arms (41) includes a ring part (411) that surrounds the periphery of the corresponding fixing part (42) and is in the shape of a ring. The ring part (411) is connected to the corresponding fixing part (42) through a first connecting part (412), and the ring part (411) is connected to the spring sheet (4) through a second connecting part (413). The fixed base (1) is provided with a base fixing column (13) that protrudes upwards for each fixing part (42). The base fixing column (13) and the fixed base (1) are an integral structure. Each fixing part (42) is fitted and glued to the upper end of the corresponding base fixing column (13).

6. The novel embedded galvanometer module according to claim 1, characterized in that: The fixed base (1) is a die-cast zinc alloy part or a die-cast aluminum alloy part.

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