Shutter device

Abstract

The shutter device comprises a base, one end of the base is provided with a light inlet penetrating through the base, the other end of the base is provided with a ferrite magnetic ring with an annular opening, and a copper wire is wound on the surface of the ferrite magnetic ring to form an electromagnetic coil; a rubidium magnet block used in cooperation with the electromagnetic coil is arranged at one end of the base and located on one side of the light inlet, and a blade assembly is assembled on the rubidium magnet block; the electromagnetic coil drives the blade assembly to rotate through the rubidium magnet block so that the light inlet can be opened or closed, the shutter device adopts the ferrite magnetic ring with the annular opening, the rotatable rubidium magnet and the blades installed on the rubidium magnet, and due to the structural design, the overall structure of the shutter is simpler and more compact, the occupied space is smaller, and the shutter device is more convenient to use. And the miniaturization design of equipment is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical application field of optical devices, and particularly relates to a shutter device. Background Art

[0002] In the field of mechanical devices, a shutter is a common mechanical component, and its main function is to control the on-off of the light path. In the field of optical devices, the application of the shutter is particularly extensive. For example, in devices such as cameras, projectors, and microscopes, the shutter plays a key role. In addition, controlling the manufacturing cost is also an important factor that any technical solution needs to consider.

[0003] In the existing technology, a shutter usually consists of multiple mechanical components, and the control of the light path is achieved through a complex mechanical transmission mechanism. For example, some shutters are driven by an electric motor and control the opening and closing of the light-shielding plate through a gear transmission system. In addition, there are also some shutters that adopt an electromagnetic drive method and drive the movement of the light-shielding plate through the magnetic field generated by an electromagnetic coil.

[0004] However, there are some problems in the existing shutter designs. First, the structures of these shutters are complex and the manufacturing costs are relatively high. Second, due to the precise cooperation of multiple mechanical components, their reliability and service life are also affected to a certain extent. In addition, the existing shutters may generate relatively large noises during operation, which may cause troubles in some application scenarios. Finally, the response speed of the existing shutters when controlling the on-off of the light path may not meet the requirements of some high-speed applications. Summary of the Utility Model

[0005] To solve the above technical problems, the utility model provides a shutter device. The shutter device adopts a ferrite magnetic ring with an annular opening, a rotatable rubidium magnet, and a blade installed on the rubidium magnet. This structural design makes the overall structure of the shutter simpler, more compact, occupies less space, and is conducive to the miniaturization design of the device.

[0006] The technical solution of the utility model is: a shutter device, including a base. One end of the base is provided with a light inlet penetrating the base, and the other end of the base is provided with a ferrite magnetic ring with an annular opening. A copper wire is wound on the surface of the ferrite magnetic ring to form an electromagnetic coil;

[0007] One end of the base and on one side of the light inlet is provided with a rubidium magnet block for cooperating with the electromagnetic coil, and the rubidium magnet block is equipped with a blade assembly;

[0008] The electromagnetic coil drives the blade assembly to rotate through the rubidium magnet block, so as to be able to open or close the light inlet.

[0009] Further, one end of the base is provided with a limiting groove, a positioning post is arranged in the limiting groove, the rubidium magnet block is inserted into the positioning post, and the blade assembly is clamped to the rubidium magnet block and rotates along the axial direction of the positioning post through the rubidium magnet block.

[0010] Further, the blade assembly includes a blade seat and a light-shielding sheet. The blade seat is a structure for cooperating with the rubidium magnet block. One end of the light-shielding sheet is connected to the blade seat, and the other end of the light-shielding sheet is located at the light inlet and can open or close the light inlet.

[0011] Further, a buffer sponge for cooperating with the blade seat is also arranged in the limiting groove.

[0012] Further, a rear cover is arranged at one end of the base, and the rear cover is a shape structure for cooperating with the blade assembly.

[0013] Further, an annular groove for placing an annularly open ferrite magnet ring is arranged at the other end of the base. A limiting post for cooperating with the ferrite magnet ring is arranged at the opening of the annular groove, and the light inlet is arranged on the limiting post.

[0014] Further, a T-shaped groove is arranged at the other end of the base, and the T-shaped groove is communicated with the annular groove so as to lead out the copper wire wound around the ferrite magnet ring outside the base.

[0015] Further, a front cover is arranged at the other end of the base.

[0016] The beneficial technical effects of the present utility model are as follows:

[0017] 1. The shutter of the present utility model adopts an annularly open ferrite magnet ring, a rotatable rubidium magnet, and a blade mounted on the rubidium magnet. This structural design makes the overall structure of the shutter more compact, occupies less space, and is conducive to the miniaturization design of the device.

[0018] 2. The shutter of the present utility model drives the rubidium magnet to rotate through an electromagnetic field, thereby driving the blade to rotate to complete the function of opening and closing the light inlet. This design avoids the precise cooperation of multiple mechanical components in the traditional shutter, reduces the failure rate, and improves the service life of the shutter. For the blade, the present utility model conducts a stress dispersion design for the stress concentration area, which is also the area prone to fracture, and adds a buffer sponge, which can greatly improve the blade life.

[0019] 3. The enameled copper wire and ferrite magnet ring adopted by the shutter of the present utility model are common components, and the procurement cost is low; the mass production cost of the rubidium magnet block is low. The machining parts are made of common engineering plastics, with low cost and low processing cost. Compared with the shutter driven by a motor or electromagnetic coil in the prior art, the manufacturing cost is greatly reduced.

[0020] 4. The shutter of the present utility model forms an electromagnetic field by applying an instantaneous pulse current to the copper wire loop, driving the rotation of the rubidium magnet. Moreover, the entire rotating mechanism has a simple and compact structure and a low moment of inertia, thereby achieving rapid control of the optical path and meeting the requirements of high-speed applications.

[0021] 5. When the shutter of the present utility model is working, it mainly drives the rotation of the rubidium magnet through an electromagnetic field rather than traditional mechanical transmission, and a buffer sponge is added. Therefore, the noise generated during operation is small, making it more suitable for application scenarios that require a quiet environment.

[0022] The above description is only an overview of the technical solution of the present utility model. In order to understand the technical means of the present utility model more clearly and be able to implement it according to the content of the description, the following describes in detail with reference to the preferred embodiments of the present utility model and the accompanying drawings. Description of the Drawings

[0023] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0024] Figure 2 is a schematic diagram of the internal structure of the present utility model;

[0025] Figure 3 is a schematic diagram of the structure of the ferrite ring of the present utility model;

[0026] Figure 4 is a schematic diagram of the structure of the base of the present utility model;

[0027] Figure 5 is a schematic diagram of the structure in which the blade assembly of the present utility model is assembled on the base;

[0028] Figure 6 is a schematic diagram of the structure in which the blade assembly of the present utility model is connected to the rubidium magnet;

[0029] Figure 7 is another perspective of the schematic diagram of the structure of the base of the present utility model.

[0030] The reference signs are:

[0031] 100, base; 110, front cover; 120, rear cover; 130, annular groove; 140, limiting post; 150, T-shaped groove; 160, limiting groove; 161, positioning post; 200, light inlet; 300, ferrite ring; 400, blade assembly; 410, light-shielding sheet; 420, blade seat; 500, rubidium magnet; 510, through hole; 600, buffer sponge. Detailed Embodiments

[0032] In order to more clearly understand the technical means of the present utility model and be able to implement it in accordance with the content of the specification, the following further describes in detail the specific implementation manners of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model but are not used to limit the scope of the present utility model.

[0033] It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to implement the embodiments of this application described herein.

[0034] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship recorded in the embodiments and shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0035] As Figure 1 shown, the present utility model specifically relates to a shutter device, including a base 100. One end of the base 100 is provided with a light inlet 200 penetrating the base 100. The other end of the base 100 is provided with a ferrite ring 300 with an annular opening. A copper wire is wound around the surface of the ferrite ring 300 to form an electromagnetic coil;

[0036] One end of the base 100 and on one side of the light inlet 200 is provided with a block of rubidium magnet 500 for cooperating with the electromagnetic coil. The block of rubidium magnet 500 is equipped with a blade assembly 400;

[0037] The electromagnetic coil drives the blade assembly 400 to rotate through the block of rubidium magnet 500 so as to be able to open or close the light inlet 200.

[0038] It should be noted that the toroidal ferrite core 300 with a circular opening is assembled at one end of the base 100, and 500 pieces of rubidium magnets and the blade assembly 400 are assembled at the other end of the base 100. The surface of the toroidal ferrite core 300 is wound with copper wire to form an electromagnetic coil, and an external power supply is connected through the copper wire. Although the 500 pieces of rubidium magnets are located at the other end of the base 100 and the blade assembly 400 is assembled on the 500 pieces of rubidium magnets, the 500 pieces of rubidium magnets are exactly at the opening of the toroidal ferrite core 300. When a 5V instantaneous pulse voltage is applied to the electromagnetic coil, the electromagnetic coil generates an induced magnetic field, which drives the blade assembly 400 to rotate through the 500 pieces of rubidium magnets. When a reverse instantaneous pulse voltage is applied to the electromagnetic coil, a reverse induced magnetic field is generated to drive the blade to turn back. The reason for arranging the toroidal ferrite core 300 and the rubidium magnets on two sides is to ensure the integrity of the rotation surface of the light-shielding sheet 410, thereby reducing the collision of the light-shielding sheet 410 during rotation, ensuring the stability of the rotation process of the light-shielding sheet 410, and prolonging the service life of the light-shielding sheet.

[0039] The above settings further ensure the service life and stability of the blade assembly 400 compared with the mechanical mechanism in the prior art.

[0040] A limiting groove 160 is provided at one end of the base 100, and a positioning post 161 is provided in the limiting groove 160. The 500 pieces of rubidium magnets are inserted into the positioning post 161, and the blade assembly 400 is clamped to the 500 pieces of rubidium magnets and rotates axially along the positioning post 161 through the 500 pieces of rubidium magnets.

[0041] Among them, the 500 pieces of rubidium magnets are provided with through holes 510, and the 500 pieces of rubidium magnets are connected to the positioning post 161 through the through holes 510, so that the 500 pieces of rubidium magnets can rotate axially along the positioning post 161. When the electromagnetic coil is energized, the 500 pieces of rubidium magnets can immediately respond and rotate axially along the positioning axis. In addition, since the blade assembly 400 is connected to the 500 pieces of rubidium magnets, when the 500 pieces of rubidium magnets rotate, the blade assembly 400 is driven to rotate synchronously, and the light inlet 200 is opened or closed through the blade assembly 400.

[0042] The blade assembly 400 includes a blade seat 420 and a light-shielding sheet 410. The blade seat 420 is a structure for cooperating with the 500 pieces of rubidium magnets. One end of the light-shielding sheet 410 is connected to the blade seat 420, and the other end of the light-shielding sheet 410 is located at the light inlet 200 and can open or close the light inlet 200.

[0043] Among them, the light-shielding sheet 410 and the blade seat 420 are of an integral structure, and positioning claws for cooperating with the rubidium magnet 500 are provided at the bottom of the blade base 100. When the blade base 100 abuts against the rubidium magnet 500, the rubidium magnet 500 is positioned by the positioning claws, ensuring that the rubidium magnet 500 and the blade base 100 can rotate synchronously.

[0044] In addition, the limiting groove 160 is provided to limit the rotation stroke of the light-shielding sheet 410.

[0045] A buffer sponge 600 for cooperating with the blade seat 420 is further provided in the limiting groove 160. The buffer sponge 600 is added at the rotation limit position. By means of the buffer sponge 600, the rebound of the light-shielding sheet 410 is effectively avoided and the impact force is reduced, thereby increasing the service life of the light-shielding sheet 410.

[0046] One end of the base 100 is provided with a rear cover 120, and the rear cover 120 has a shape structure for cooperating with the blade assembly 400.

[0047] The rear cover 120 is used for the installation and rotation of the blade assembly 400, ensuring that the blade assembly 400 can rotate on a complete plane, thereby improving the stability of the shutter.

[0048] The other end of the base 100 is provided with an annular groove 130 for placing the ring-shaped open ferrite magnet 300. A limiting post 140 for cooperating with the ferrite magnet 300 is provided at the opening of the annular groove 130, and the light inlet 200 is provided on the limiting post 140.

[0049] First, the position of the ferrite magnet 300 is limited by the annular groove 130. In addition, the light inlet 200 is located at the middle position of the ferrite magnet 300, which is beneficial to the miniaturized design of the device.

[0050] The other end of the base 100 is provided with a T-shaped groove 150, and the T-shaped groove 150 is communicated with the annular groove 130 so as to lead out the copper wire wound around the ferrite magnet 300 outside the base 100.

[0051] Among them, the setting of the T-shaped groove 150 not only facilitates leading out the copper wire outside the base 100, but also forms a notch on the side wall of the base 100. Through the notch, it is convenient for personnel to distinguish the front and back of the base 100 of the shutter device.

[0052] The other end of the base 100 is provided with a front cover 110, and the electromagnetic coil is fixed by the front cover 110.

[0053] The above embodiments are only specific embodiments of the present utility model, which are used to illustrate the technical solutions of the present utility model rather than to limit it. The protection scope of the present utility model is not limited thereto. Although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that any person skilled in the art within the technical scope disclosed by the present utility model can still modify the technical solutions described in the foregoing embodiments or can easily think of changes, or make equivalent replacements for some of the technical features; and these modifications, changes or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model, and should all be covered within the protection scope of the present utility model.

Claims

1. A shutter device, characterized in that: The invention comprises a base (100), wherein one end of the base (100) is provided with a light inlet (200) penetrating the base (100), and the other end of the base (100) is provided with a ferrite magnetic ring (300) with an annular opening, and a copper wire is wound around the surface of the ferrite magnetic ring (300) to form an electromagnetic coil; A rubidium magnet (500) block used in conjunction with the electromagnetic coil is provided at one end of the base (100) and located on one side of the light inlet (200), and the rubidium magnet (500) block is equipped with a blade assembly (400); The electromagnetic coil drives the blade assembly (400) to rotate via the neodymium magnet (500) block, so as to open or close the light inlet (200).

2. A shutter device according to claim 1, characterized in that: A limiting groove (160) is provided at one end of the base (100), a positioning column (161) is provided in the limiting groove (160), the rubidium magnet (500) block is inserted into the positioning column (161), and the blade assembly (400) is clamped to the rubidium magnet (500) block and rotates along the axial direction of the positioning column (161) through the rubidium magnet (500) block.

3. A shutter device according to claim 2, characterized in that: The blade assembly (400) comprises a blade seat (420) and a light shielding sheet (410); the blade seat (420) is a structure used in conjunction with the rubidium magnet (500) block; one end of the light shielding sheet (410) is connected to the blade seat (420); the other end of the light shielding sheet (410) is located at the light inlet (200) and is capable of opening or closing the light inlet (200).

4. A shutter device according to claim 3, characterized in that: A buffer sponge (600) is also provided in the limiting groove (160) and is used in conjunction with the blade seat (420).

5. A shutter device according to claim 4, characterized in that: A rear cover (120) is provided at one end of the base (100), and the rear cover (120) is a structure of a shape that is used in conjunction with the blade assembly (400).

6. A shutter device according to claim 1, characterized in that: The other end of the base (100) is provided with an annular groove (130) for placing the annularly opened ferrite magnetic ring (300), the opening of the annular groove (130) is provided with a limiting column (140) used in conjunction with the ferrite magnetic ring (300), and the light inlet (200) is arranged on the limiting column (140).

7. A shutter device according to claim 6, characterized in that: The other end of the base (100) is provided with a T-shaped groove (150), and the T-shaped groove (150) is connected to the annular groove (130) so as to lead the copper wire wound around the ferrite magnetic ring (300) out of the base (100).

8. A shutter device according to claim 7, characterized in that: The other end of the base (100) is provided with a front cover (110).

Images