Improved projector speckle removing device module

Abstract

The utility model discloses an improved projector speckle removing device module, which comprises a fixed base, a movable inner frame, a diffusion lens and a magnet coil assembly, and is characterized in that the magnet coil assembly comprises a first magnet, a second magnet, a first driving coil and a second driving coil, and the first magnet is arranged at a first edge part of the movable inner frame; the second magnet is arranged on the second edge part of the movable inner frame, and the first edge part and the second edge part of the movable inner frame are perpendicular to each other; two spring piece assemblies which are arranged in a central symmetry mode are arranged beside the movable inner frame, each spring piece assembly is of a cantilever beam structure and comprises a first spring piece and a second spring piece, the first end of each first spring piece is connected with the fixed base, and the second end of each first spring piece is connected with the first end of the corresponding second spring piece through a middle connecting block. And the second end part of the second spring piece is connected with the movable inner frame. By means of the structural design, the improved projector speckle removing device module has the advantages of being novel in design, simple in structure and low in manufacturing cost.

Description

Technical Field

[0001] This utility model relates to the field of optical device technology, and in particular to an improved projector spot removal module. Background Technology

[0002] Chinese utility model patent with patent number ZL202222670566.8 and patent title "A Galvanometer Assembly" discloses a projector speckle eraser module. Specifically, the galvanometer assembly discloses the following technical solution: A galvanometer assembly includes a fixed base and a movable outer frame and a movable inner frame, each in a rectangular full-circumference shape. The movable inner frame is located inside the movable outer frame and is equipped with a refractive lens. The movable outer frame is driven by a first voice coil driving mechanism, and the movable inner frame is driven by a second voice coil driving mechanism. Two first springs are installed between the movable outer frame and the fixed base, arranged opposite each other at intervals. The system comprises two first spring plates located on opposite sides of the movable outer frame; two second spring plates arranged opposite each other and spaced apart are installed between the movable outer frame and the movable inner frame, with the two second spring plates located on opposite sides of the movable inner frame; a first voice coil drive mechanism includes a first magnet installed on the movable outer frame, and a first drive coil located directly below the first magnet is installed on the fixed base; a second voice coil drive mechanism includes a second magnet installed on the movable inner frame, and a second drive coil located directly below the second magnet is installed on the fixed base; the fixed base also has a PCB circuit board installed, and the first drive coil and the second drive coil are electrically connected to the PCB circuit board respectively.

[0003] When the aforementioned galvanometer assembly is in operation, the driving direction of the first voice coil drive mechanism is perpendicular to the driving direction of the second voice coil drive mechanism. That is, under the driving action of the first and second voice coil drive mechanisms, the refractive lens mounted on the movable inner frame will achieve biaxial movement.

[0004] It should be noted that the above-mentioned galvanometer assembly still has the following defects: the movable outer frame is a rectangular full-circumference shape and is located outside the movable inner frame. The manufacturing cost of this one-piece rectangular full-circumference movable outer frame is high and it will increase the structural complexity of the entire galvanometer assembly. Utility Model Content

[0005] The purpose of this invention is to provide an improved projector speckle remover module that addresses the shortcomings of existing technologies. This improved projector speckle remover module features a novel design, simple structure, and low manufacturing cost.

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

[0007] An improved projector speckle remover module includes a fixed base, a movable inner frame, a diffuser lens, and a magnetic coil assembly. The movable inner frame is located on the upper side of the fixed base and is rectangular in shape. The diffuser lens is mounted on the movable inner frame.

[0008] The magnet coil assembly includes a first magnet, a second magnet, a first drive coil located directly below the first magnet, and a second drive coil located directly below the second magnet. The first drive coil and the second drive coil are respectively mounted on a fixed base, and the first magnet is mounted on the first edge of the movable inner frame.

[0009] The second magnet is installed on the second edge of the movable inner frame, and the first and second edges of the movable inner frame are perpendicular to each other;

[0010] Two spring plate assemblies arranged symmetrically in the center are installed on the side of the active inner frame, and each spring plate assembly is a cantilever beam structure;

[0011] The spring plate assembly includes a first spring plate and a second spring plate arranged perpendicularly to each other. The first end of the first spring plate is connected to the fixed base, the second end of the first spring plate is connected to the first end of the second spring plate through an intermediate connecting block, and the second end of the second spring plate is connected to the movable inner frame.

[0012] The fixed base is provided with an upwardly protruding base mounting part corresponding to each of the first spring pieces. The base mounting part and the fixed base are an integral structure. The first end of each first spring piece is screwed onto the corresponding base mounting part by a locking screw.

[0013] Each of the intermediate connecting blocks includes a first connecting portion and a second connecting portion arranged perpendicularly to each other. The second end of each first spring sheet is screwed onto the first connecting portion of the corresponding intermediate connecting block by a locking screw. The first end of each second spring sheet is screwed onto the second connecting portion of the corresponding intermediate connecting block by a locking screw.

[0014] The second end of each of the second spring sheets is screwed onto the movable inner frame by locking screws.

[0015] The upper surface of the fixed base is provided with a base groove, and a PCB circuit board is embedded in the base groove. The first drive coil and the second drive coil are electrically connected to the PCB circuit board respectively.

[0016] The fixing base is a die-cast zinc alloy part or a die-cast aluminum alloy part.

[0017] The first spring sheet and the second spring sheet are both made of stainless steel.

[0018] Compared with existing technologies, this utility model has the following advantages: Specifically, the spring plate assembly of this utility model consists of a first spring plate, an intermediate connecting block, and a second spring plate connected in sequence, and each spring plate assembly is a cantilever beam structure, that is, the fixed base supports the movable inner frame through the above two centrally symmetrically arranged cantilever beam structures; the improved projector speckle eraser module of this utility model does not have a movable outer frame structure in the shape of a rectangular frame. Compared with existing technologies, the improved projector speckle eraser module of this utility model has a simpler structure and lower manufacturing cost. Therefore, the improved projector speckle eraser module of this utility model has the advantages of novel design, simple structure, and low manufacturing cost. 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 a structural schematic diagram from another perspective of the present invention.

[0023] Figure 4 This is a cross-sectional schematic diagram of the present invention.

[0024] exist Figures 1 to 4 This includes:

[0025] 1-Fixed base; 11-Base mounting part; 12-Base recess; 2-Modible inner frame; 3-Diffuser lens; 411-First magnet; 412-First drive coil; 421-Second magnet; 422-Second drive coil; 5-Spring plate assembly; 51-First spring plate; 52-Second spring plate; 53-Intermediate connecting block; 531-First connecting part; 532-Second connecting part; 54-Locking screw; 6-PCB circuit board. Detailed Implementation

[0026] The present invention will now be described in conjunction with specific embodiments.

[0027] Example 1, as Figures 1 to 4 As shown, an improved projector speckle removal module includes a fixed base 1, a movable inner frame 2, a diffuser lens 3, and a magnet coil assembly. The movable inner frame 2 is located on the upper side of the fixed base 1 and has a rectangular frame shape. The diffuser lens 3 is installed on the movable inner frame 2.

[0028] Among them, such as Figures 1 to 4As shown, the magnet coil assembly includes a first magnet 411, a second magnet 421, a first drive coil 412 located directly below the first magnet 411, and a second drive coil 422 located directly below the second magnet 421. The first drive coil 412 and the second drive coil 422 are respectively mounted on the fixed base 1, and the first magnet 411 is mounted on the first edge of the movable inner frame 2.

[0029] Furthermore, such as Figures 1 to 4 As shown, the second magnet 421 is installed on the second edge of the movable inner frame 2, and the first edge and the second edge of the movable inner frame 2 are perpendicular to each other.

[0030] Furthermore, such as Figures 1 to 4 As shown, two spring plate assemblies 5 are centrally symmetrically arranged on the side of the movable inner frame 2, and each spring plate assembly 5 is a cantilever beam structure.

[0031] Specifically, such as Figures 1 to 4 As shown, the spring plate assembly 5 includes a first spring plate 51 and a second spring plate 52 arranged perpendicularly to each other. The first end of the first spring plate 51 is connected to the fixed base 1, the second end of the first spring plate 51 is connected to the first end of the second spring plate 52 through the intermediate connecting block 53, and the second end of the second spring plate 52 is connected to the movable inner frame 2.

[0032] For each spring plate assembly 5 in this embodiment, it consists of a first spring plate 51, an intermediate connecting block 53 and a second spring plate 52 connected in sequence, and each spring plate assembly 5 is a cantilever beam structure, that is, the fixed base 1 supports the movable inner frame 2 through the above two centrally symmetrically arranged cantilever beam structures.

[0033] The improved projector speckle remover module of this embodiment does not have a movable outer frame structure in the shape of a rectangular frame. Compared with the prior art, the improved projector speckle remover module of this embodiment has a simpler structure and lower manufacturing cost.

[0034] In summary, the improved projector spot removal module of this embodiment has the advantages of novel design, simple structure and low manufacturing cost 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 fixed base 1 is provided with an upwardly protruding base mounting part 11 for each of the first spring plates 51. The base mounting part 11 and the fixed base 1 are an integral structure. The first end of each of the first spring plates 51 is screwed and locked to the corresponding base mounting part 11 by locking screws 54.

[0036] The assembly method of securing the first end of the first spring plate 51 with the locking screw 54 has the advantages of convenient assembly and connection and good stability and reliability.

[0037] Example 3, as Figures 1 to 4 As shown, the difference between this embodiment 3 and embodiment 2 is that each intermediate connecting block 53 includes a first connecting part 531 and a second connecting part 532 arranged perpendicularly to each other. The second end of each first spring sheet 51 is screwed onto the first connecting part 531 of the corresponding intermediate connecting block 53 by locking screws 54. The first end of each second spring sheet 52 is screwed onto the second connecting part 532 of the corresponding intermediate connecting block 53 by locking screws 54.

[0038] The assembly method of screwing the second end of the first spring plate 51 and the first end of the second spring plate 52 with the locking screw 54 has the advantages of convenient assembly and connection and good stability and reliability.

[0039] Example 4, as Figures 1 to 4 As shown, the difference between this embodiment four and embodiment three is that the second ends of each second spring sheet 52 are respectively screwed and locked to the movable inner frame 2 by locking screws 54.

[0040] The assembly method of screwing the second end of the second spring plate 52 with the locking screw 54 has the advantages of convenient assembly and connection and good stability and reliability.

[0041] Example 5, as Figures 1 to 4 As shown, the difference between this fifth embodiment and the first embodiment is that: a base groove 12 is provided on the upper surface of the fixed base 1, and a PCB circuit board 6 is embedded in the base groove 12. The first drive coil 412 and the second drive coil 422 are electrically connected to the PCB circuit board 6 respectively.

[0042] The PCB circuit board 6 is embedded in the base recess 12 of the fixed base 1, and the PCB circuit board 6 can be fastened to the base recess 12 with screws; the method of installing the PCB circuit board 6 through the base recess 12 can effectively reduce the thickness space of the entire projector spot removal module.

[0043] Example 6 differs from Example 1 in that the fixing base 1 is a die-cast zinc alloy part or a die-cast aluminum alloy part. The fixing base 1, die-cast from zinc alloy or aluminum alloy, has the advantages of high strength and high hardness.

[0044] Example 7 differs from Example 1 in that the first spring sheet 51 and the second spring sheet 52 are made of stainless steel.

[0045] 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. An improved projector spot corrector module, comprising a fixed base (1), a movable inner frame (2), a diffusion lens (3), and a magnet wire package assembly, the movable inner frame (2) is located on the upper side of the fixed base (1) and has a rectangular frame shape, and the diffusion lens (3) is installed on the movable inner frame (2). The magnet wire package assembly comprises a first magnet (411), a second magnet (421), a first drive wire package (412) located directly below the first magnet (411), and a second drive wire package (422) located directly below the second magnet (421), the first drive wire package (412) and the second drive wire package (422) are respectively arranged on the fixed base (1), the first magnet (411) is arranged on the first edge of the movable inner frame (2), the second magnet (421) is arranged on the second edge of the movable inner frame (2), and the first edge and the second edge of the movable inner frame (2) are perpendicular to each other. characterized in that Two spring sheet assemblies (5) are arranged on the side of the movable inner frame (2) and are arranged in a central symmetric manner, each spring sheet assembly (5) has a cantilever beam structure. The spring sheet assembly (5) comprises a first spring sheet (51) and a second spring sheet (52) arranged perpendicularly, the first end of the first spring sheet (51) is connected with the fixed base (1), the second end of the first spring sheet (51) is connected with the first end of the second spring sheet (52) through an intermediate connecting block (53), and the second end of the second spring sheet (52) is connected with the movable inner frame (2). The fixed base (1) is provided with a base mounting portion (11) extending upward and protruding correspondingly to each first spring sheet (51), the base mounting portion (11) and the fixed base (1) are in an integral structure, and the first end of each first spring sheet (51) is screwed and locked to the corresponding base mounting portion (11) through a locking screw (54).

2. The improved spot projector module according to claim 1, wherein: Each intermediate connecting block (53) comprises a first connecting portion (531) and a second connecting portion (532) arranged perpendicularly, the second end of each first spring sheet (51) is screwed and locked to the first connecting portion (531) of the corresponding intermediate connecting block (53) through a locking screw (54), and the first end of each second spring sheet (52) is screwed and locked to the second connecting portion (532) of the corresponding intermediate connecting block (53) through a locking screw (54).

3. The improved spot projector module according to claim 2, wherein: The second end of each second spring sheet (52) is screwed and locked to the movable inner frame (2) through a locking screw (54).

4. The improved spot projector module according to claim 3, wherein: The upper surface of the fixed base (1) is provided with a base sink (12), and a PCB circuit board (6) is embedded in the base sink (12), the first drive wire package (412) and the second drive wire package (422) are electrically connected with the PCB circuit board (6) respectively.

5. The improved spot projector module of claim 1, wherein: The fixed base (1) is a die-cast zinc alloy or a die-cast aluminum alloy.

6. The improved spot projector module of claim 1, wherein: The first spring sheet (51) and the second spring sheet (52) are stainless steel parts.

7. The improved spot projector module of claim 1, wherein: ​

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