Light-shielding device and electronic device using the same

Abstract

The present invention relates to a light-shielding device and an electronic device using the same. The light-shielding device includes a cover plate, a base having a first surface opposite to the cover plate and a second surface opposite to the first surface, a light-shielding member movably disposed between the cover plate and the base, a first magnet fixed on the light-shielding member, and a coil fixed in a first receiving groove. The first receiving groove is formed on the second surface of the base. The light-shielding device of the present invention realizes automatic control of the light-shielding member by using a magnet and an energized coil. All components may only include a cover plate, a base, a light-shielding member, a first magnet and a coil, and the structure is simple. Among them, the coil and the light-shielding member (first magnet) can be assembled from two sides of the base respectively, which is easy to assemble and has a higher yield. The light-shielding device of the present invention can not only be used for shielding the cameras of various electronic devices such as laptop computers, monitors, and smart phones, but also can be used for shielding any other components of the electronic device.

Description

Technical Field

[0001] The present invention relates to a light-shielding device, and more particularly to a light-shielding device and an electronic device using the same. Background Art

[0002] A camera is a standard configuration of various electronic devices with video or monitoring functions. When an electronic device is connected to the network, the camera may be called by certain applications or hackers, thus leaking user privacy. Therefore, electronic device manufacturers have configured a light-shielding device for the camera, so that when the user does not actively start the camera, the light-shielding device blocks the camera lens, thereby effectively protecting user privacy. The existing light-shielding devices are mainly manual light-shielding devices, and the user needs to manually operate the light-shielding plate to block and expose the camera lens, which is not intelligent enough. At present, there are also light-shielding devices that can be electrically driven to automatically block and expose the camera lens, but they are large in size and complex in structure. Summary of the Invention

[0003] The purpose of the present invention is to provide a light-shielding device that can be automatically controlled and has a simple structure, and an electronic device using the same.

[0004] A light-shielding device includes: a cover plate; a base having a first surface opposite to the cover plate and a second surface opposite to the first surface, and a first receiving groove is formed on the second surface; a light-shielding member movably disposed between the cover plate and the base; a first magnet fixed on the light-shielding member; and a coil fixed in the first receiving groove. Wherein, when currents in opposite directions flow through the coil respectively, different magnetic fields generated can drive the first magnet to move in two opposite directions respectively, and then drive the light-shielding member to move to achieve the functions of blocking and non-blocking.

[0005] As an embodiment, the light-shielding member includes a push plate, a first protruding portion protruding towards the cover plate is formed on the push plate, a second receiving groove for receiving the first magnet is formed on one side of the first protruding portion facing the base, and an avoidance space for the first protruding portion is formed on the cover plate.

[0006] As an embodiment, an elastically deformable elastic portion is fixed on the first surface of the base, and a sliding groove is formed on the light-shielding member. When the light-shielding member moves, the elastic portion contacts the two side walls of the sliding groove.

[0007] As an embodiment, the light-shielding member includes a push plate, and a second protruding portion extends from the push plate towards the base, and a sliding groove for inserting the second protruding portion is correspondingly formed on the base.

[0008] As an embodiment, a third receiving groove is also formed on the second surface of the base, a fixed column extends from the bottom of the third receiving groove, and the slide groove is a through groove connected to the third receiving groove, and the second protrusion passes through the slide groove and is inserted into the third receiving groove. The shading device also includes a second magnet and a limit switch fixed in the third receiving groove. The limit switch includes a rotating part rotatably connected to the fixed column, a passive part extending outward from the rotating part and located between the second magnet and the coil, and a locking part extending outward from the rotating part and located between the second protrusion and the second magnet. When the coil is not energized, the limit switch is attracted by the second magnet to limit the second protrusion. When the coil is energized, the limit switch is attracted by the magnetic field of the coil and rotates, thereby releasing the limit on the second protrusion.

[0009] As an embodiment, the shading device further comprises a back cover fixed on the second surface of the base, for preventing the limit switch from being separated from the fixing column.

[0010] As an implementation manner, the shading device further includes an iron core fixed inside the coil.

[0011] As an embodiment, a through slot penetrating the first surface is further formed at the bottom of the first receiving slot, and the through slot ensures that the first magnet is spaced opposite to the coil when the shading element is in any position.

[0012] As an embodiment, the shading member includes a push plate, and the push plate extends toward the base to have a plurality of protrusions for reducing the contact area between the push plate and the base, and a groove for accommodating at least the protrusions is formed on the first surface of the base.

[0013] An electronic device comprises a camera device and the shading device as described above, wherein when the shading member moves, the lens of the camera device can be covered or uncovered.

[0014] The shading device of the present invention utilizes magnets and energized coils to realize automatic control of the shading member, and all components may only include a cover plate, a base, a shading member, a first magnet, and a coil, and the structure is simple. The coil and the shading member (first magnet) can be assembled from both sides of the base, respectively, which is easy to assemble and has a higher yield. The shading device of the present invention can be used not only to shield the cameras of various electronic devices such as laptops, monitors, and smart phones, but also to shield any other components of electronic devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the shading device of the first embodiment.

[0016] Figure 2 for Figure 1 Exploded view of the central shading device.

[0017] Figure 3 A perspective view of the push plate of the light-shielding member of the light-shielding device according to the first embodiment.

[0018] Figure 4 A perspective view of the base of the light-shielding device according to the first embodiment.

[0019] Figure 5 For Figure 4 A perspective view of the base from another perspective in

[0020] Figure 6 An exploded view of the light-shielding device according to the second embodiment.

[0021] Figure 7 A perspective view of the base of the light-shielding device according to the second embodiment.

[0022] Figure 8 A schematic diagram of the positional relationship among the light-shielding member, the first magnet, the coil, the limit switch, and the second magnet of the light-shielding device according to the second embodiment.

[0023] Figure 9 A schematic diagram of the limit switch of the light-shielding device according to the second embodiment in the locked state.

[0024] Figure 10 A schematic diagram of the limit switch of the light-shielding device according to the second embodiment in the open state. Embodiment

[0025] Hereinafter, the light-shielding device of the present invention and the electronic device using the same will be further described in detail with reference to specific embodiments and the accompanying drawings. For the convenience of description, a rectangular XYZ coordinate system is defined. The moving direction of the light-shielding member of the light-shielding device of the electronic device of the present invention is parallel to the X-axis, and the direction close to the negative side of the Z-axis is the front (upper side), and the direction close to the positive side of the Z-axis is the rear (lower side). Embodiment

[0026] Please refer to Figures 1 to 5 As shown, in the first embodiment, the light-shielding device of the present invention is applied to an electronic device (not shown) and is used to be disposed in front of the lens of the imaging device of the electronic device, and can block and expose the lens as needed. The light-shielding device mainly includes a cover plate 10, a base 20, a light-shielding member 30, a first magnet 40, and a coil 50.

[0027] Among them, the cover plate 10 and the base 20 are fixedly connected, and are used to movably limit the light-shielding member 30 between the cover plate 10 and the base 20 and allow the light-shielding member 30 to move along the X-axis direction. In this embodiment, the cover plate 10 also serves as the protective cover and the panel of the light-shielding device, and it can be made of a metal material, such as stainless steel, and has the advantages of wear resistance and good texture. It can be understood that the cover plate 10 can also be made of a plastic material, which is lighter in weight and has a richer color configuration.

[0028] The base 20 is mainly used to accommodate the coil 50 and, together with the cover plate 10, limit the light-shielding member 30. The base 20 has a first surface 21 opposite to the cover plate 10 and a second surface 22 opposite to the first surface 21. The first surface and the second surface are parallel to the plane defined by the X-axis and the Y-axis, and a first receiving groove 23 for accommodating the coil 50 is formed on the second surface 22. The coil 50 is fixed in the first receiving groove 23, and its winding direction is parallel to the X-axis, and it is in a long strip shape or generally in a cuboid shape.

[0029] The light-shielding member 30 is movably arranged between the cover plate 10 and the base 20, and is mainly used to realize the functions of blocking and unblocking the lens of the imaging device arranged beside the second end 24 of the base 20. Therefore, at least the end of the light-shielding member 30 close to the second end 24 should have light-shielding performance.

[0030] The first magnet 40 is fixed on the light-shielding member 30, and preferably is arranged opposite to the coil 50 in the Z-axis direction throughout. That is, no matter where the light-shielding member 30 moves to, the first magnet 40 is arranged opposite to a certain part of the coil 50 in the Z-axis direction. Thus, when currents in opposite directions flow through the coil 50 respectively, the different magnetic fields generated can drive the first magnet 40 to move in two opposite directions (+X-axis direction and -X-axis direction) in the X-axis direction respectively, and then drive the light-shielding member to move to realize the blocking and unblocking functions.

[0031] More specifically, in this embodiment, the cover plate 10 may include a rectangular plate 11, side walls 12 extending substantially perpendicularly from both sides of the plate 11, and an end plate 13 extending substantially perpendicularly from the first end of the plate 11. A through hole 14 for the lens of the imaging device to be exposed is also formed on the first end of the plate 11. Among them, the length of the plate 11 is greater than the length of the base 20, and the imaging device can be arranged between the end plate 13 and the second end 24 of the base 20 and behind the through hole 14. That is, the cover plate 10, in cooperation with the base 20, also serves as an outer cover for the imaging device.

[0032] Grooves for the side walls 12 of the cover plate 10 to be clamped may be formed on the side walls of the base 20, and the base 20 and the cover plate 10 can be fixedly connected by applying glue between the side walls 12 and the side walls of the base 20. The connection method is simple and easy to process. The base 20 is made of a non-conductive material, such as plastic.

[0033] A gap may be formed between the plate 11 of the cover plate 10 and the first surface 21 of the base 20, so that the shading member 30 can be accommodated, and the side plate 12 can limit the movement of the shading member 30 in the Y-axis direction, playing a role of limiting. In this embodiment, a groove 26 with a substantially square periphery and a flat bottom is formed on the first surface 21 of the base 20 to facilitate more accurate positioning of the shading member 30. It can be understood that the groove 26 can be omitted, and the movement distance of the shading member 30 in the X direction can be limited by a plurality of protrusions on the surface of the first surface 21.

[0034] An iron core 51 may also be fixed inside the coil 50, forming an electromagnet as a whole, which can increase the magnetic field strength generated by the coil 50 when it is energized, thereby generating a stronger driving force. The two ends of the iron core 51 may extend out of the two ends of the coil 50, so that the coil 50 may be fixed in the first receiving groove 23 by gluing the two ends of the iron core 51 to the base 20. It is understandable that in other embodiments, the iron core 51 may be omitted.

[0035] In addition, a through slot 27 penetrating the first surface 21 is formed at the bottom of the first receiving slot 23. The length (dimension in the X-axis direction) of the through slot 27 should be set so that when the light shielding member 30 is in any position, the first magnet 40 is spaced opposite to the coil 50, so as to increase the driving force of the electromagnetic drive system composed of the coil 50 and the first magnet 40. The width (dimension in the Y-axis direction) of the through slot 27 should be set so that the coil 50 cannot escape from the first receiving slot 23 through the through slot 27. It can be understood that in other embodiments, if the driving force is sufficient, the through slot 27 can be omitted, or the through slot 27 can be replaced by a plurality of connected through holes.

[0036] The circuit board connected to the coil 50 may be embedded in the base 20, or may be fixed to the inner wall or outer wall of the base 20, or may be arranged outside the shading device through leads.

[0037] In this embodiment, the shading member 30 includes a push plate 31 and a shading sheet 32, which are connected by overlapping the ends. The shading sheet 32 ​​is preferably made of the same material as the cover plate 10, and in this embodiment, it is stainless steel, so that when the shading sheet 32 ​​blocks the through hole 14, the appearance of the shading device is uniform and more beautiful. The push plate 31 is made of a light and non-conductive material, such as plastic, which can reduce the burden on the driving element and reduce friction noise. It can be understood that in other embodiments, the push plate 31 and the shading sheet 32 ​​can be integrally formed, both made of plastic or stainless steel. The appearance of the shading member 30 can be improved by attaching a film or coating the end of the shading member 30.

[0038] Please also refer to Figure 3, in this embodiment, the main body of the push plate 31 is generally in the shape of a rectangular plate / sheet. A first convex portion 311 protruding toward the cover plate 10 is formed on the push plate 31, and a second receiving groove 312 for receiving the first magnet 40 is formed on one side of the first convex portion 311 facing the base 20. In this way, the magnet 40 can be embedded in the first convex portion 311, and only the side facing the base 20 is exposed. It can ensure that the first magnet 40 is firmly fixed on the light-shielding member 30 and is not easy to fall off, and there is no need to increase the overall thickness of the light-shielding member 30. At the same time, the first convex portion 311 can serve as a guiding portion and a moving distance limiting portion for the movement of the light-shielding member 30. Correspondingly, an avoidance space 15 for the first convex portion 311 is formed on the cover plate 10. In this embodiment, the avoidance space 15 is a through hole, and the first convex portion 311 extends out of the cover plate 10 through the avoidance space 15. When the light-shielding member 30 moves to the farthest end along the +X direction, the first convex portion 311 reaches the +X axis end of the avoidance space 15; when the light-shielding member 30 moves to the farthest end along the -X direction, the first convex portion 311 reaches the -X axis end of the avoidance space 15. The width of the avoidance space 15 in the Y-axis direction should be slightly larger than the width of the first convex portion 311 in the Y-axis direction, so as to reduce the friction between the two when realizing the guiding function of the light-shielding member 30, and at the same time, it can significantly remind the user of the operating state of the light-shielding device. It can be understood that in other embodiments, the first convex portion 311 can protrude toward the base 20, and a similar avoidance space to the avoidance space 15 can be formed on the base 20, and the above-mentioned effects can also be achieved.

[0039] In addition, an elastically deformable elastic portion 60, which is foam cotton in this embodiment, is fixed on the first surface 21 of the base 20. Correspondingly, a sliding groove 313 is also formed in the middle or near the middle of the push plate 31. When the light-shielding member 30 moves, the elastic portion 60 contacts the two side walls of the sliding groove 313, which can play the functions of noise reduction and buffering. At the same time, the existence of the sliding groove 313 also reduces the weight of the push plate 31 and improves the driving efficiency. The push plate 31 also extends toward the first surface 21 of the base 20 to form a plurality of convex columns 314 for reducing the contact area between the push plate 31 and the base 20, which can further reduce the noise when the light-shielding member 31 moves. In this embodiment, the convex columns 314 are received in the grooves 26. It can be understood that in other embodiments, the elastic portion 60, the sliding groove 313, and the convex columns 314 can be omitted.

[0040] Particularly, in this embodiment, the push plate 31 also extends toward the base 20 to form a second convex portion 315, and a sliding groove 28 for inserting the second convex portion 315 is correspondingly formed on the base 20. The second convex portion 315 can be in the shape of a column or a plate, and is in the shape of a plate in this embodiment. Its cooperation with the sliding groove 28 can realize the guiding and limiting of the light-shielding member 30. It can be understood that in other embodiments, when there is a suitable guiding and limiting structure, the second convex portion 215 can be omitted.

[0041] In practical applications, the operation of the light-shielding device can be controlled by the control program of the electronic device or the control program embedded in the circuit board of the light-shielding device. When the imaging device is not normally enabled (that is, the user does not directly use the camera or the user does not use the camera through other application programs of the electronic device), the light-shielding piece 32 of the light-shielding device should always be in the shielding position, that is, the farthest position along the +X axis. Thus, even if the imaging device is abnormally started, it is impossible to capture images outside the electronic device, protecting the user's privacy. When the imaging device is normally enabled, the electronic device energizes the coil 50 of the light-shielding device, causing the first magnet 40 to drive the light-shielding piece 32 to move in the -X axis direction to reach the non-shielding position (the farthest position along the -X axis), exposing the lens of the imaging device through the through hole 14, enabling the capture of images outside the electronic device, achieving automatic control and providing a better user experience. When the imaging device has been used, a reverse current is applied to the coil 50 of the light-shielding device once, causing the first magnet 40 to drive the light-shielding piece 32 to move in the +X axis direction to reach the shielding position (the farthest position along the +X axis).

[0042] All components of the light-shielding device may only include a cover plate, a base, a light-shielding member, a first magnet, and a coil, with a simple structure. In particular, the coil and the light-shielding member (the first magnet) can be assembled from two sides of the base respectively, which is easy to assemble and has a higher yield rate.

[0043] In the above embodiment, the light-shielding device is applied to shield the camera of the electronic device. It can be understood that in other embodiments, the light-shielding device can also be used to shield any other components of the electronic device, such as special warning signs, etc. Embodiment

[0044] Please refer to Figures 6 to 10 As shown, compared with the light-shielding device of Embodiment 1, the light-shielding device of the electronic device in Embodiment 2 adds a locking structure. The cover plate 10, the light-shielding member 30, the first magnet 40, and the coil 50 in this embodiment are the same as those in Embodiment 1, and the reference numerals used are also the same as those in Embodiment 1. For the convenience of understanding, for the components in Embodiment 2 that are the same as those in Embodiment 1, the same reference numerals as the components in Embodiment 1 are used.

[0045] The locking structure in this embodiment mainly includes a second magnet 70 and a limit switch 80 fixed on the base 20'. To fix the locking mechanism, in addition to having the same structure as the base 20 in Embodiment 1, the base 20' also forms a third receiving groove 29 on the second surface 22. A fixing post 291 for fixing the limit switch 80 and a fixing platform 292 for fixing the second magnet 70 extend out from the bottom of the third receiving groove 29 in the +Z axis direction. A groove 293 for accommodating the second magnet 70 is formed on the fixing platform 292. It can be understood that in other embodiments, the second magnet 70 can be directly pasted on the bottom of the third receiving groove 29.

[0046] The sliding groove 28 is formed as a through groove communicating with the third receiving groove 29, and the second protruding portion 315 passes through the sliding groove 28 and is inserted into the third receiving groove 29.

[0047] The limit switch 80 includes a rotating portion 81 rotatably connected to the fixed post 291, a passive portion 82 extending outward from the rotating portion 81 and located between the second magnet 70 and the coil 50, and a locking portion 83 extending outward from the rotating portion 81 and located between the second protruding portion 315 and the second magnet 70. The limit switch 80 is made of a magnetic material and can rotate around the fixed post 291 when attracted by a magnetic field. A bump or hook portion 831 extends from the locking portion 83 toward the second protruding portion 315.

[0048] When the coil 50 is not powered on, the coil 50 and the iron core 51 do not generate a magnetic field. The limit switch 80 is mainly affected by the magnetic field of the second magnet 70. Since the first magnet 40 is at a relatively far position, it has little effect on the limit switch 80. By reasonably setting the angles of the passive portion 82 and the locking portion 83 and the distance from the second magnet 70, the bump or hook portion 831 of the locking portion 83 can be located on the +Z side of the sliding groove 28, so as to be able to be clamped at one end of the two ends of the second protruding portion 315, forming a limiting and locking effect on the second protruding portion 315. For example, as Figure 9 shown, the bump or hook portion 831 of the locking portion 83 is located at the -X side end of the second protruding portion 315. At this time, the light-shielding piece 32 of the light-shielding member 30 extends out and is in the shielding position, covering the through hole 14 of the cover plate 10, and the imaging device cannot capture an image outside the electronic device. When the bump or hook portion 831 of the locking portion 83 is clamped at the other end of the second protruding portion 315, that is, located at the +X side end of the second protruding portion 315, the light-shielding piece 32 of the light-shielding member 30 retracts to the non-shielding position, exposing the through hole 14 of the cover plate 10 (please refer to the position of the light-shielding piece 32 in Figure 10 ), and the imaging device can capture an image outside the electronic device.

[0049] When the coil 50 is powered on, the coil 50 and the iron core 51 generate a magnetic field. The passive portion 82 located between the second magnet 70 and the coil 50 is attracted by the magnetic field generated by the coil 50 and the iron core 51, deflects toward the coil 50 side, drives the limit switch 80 to rotate, and makes the bump or hook portion 831 of the locking portion 83 away from the sliding groove 28, thereby releasing the limiting and locking of the second protruding portion 315, and the light-shielding member 30 can move along the sliding groove 28. At the same time, when the coil 50 is powered on, a corresponding driving force is generated on the light-shielding member 30, driving the light-shielding member 30 to move along a preset direction to achieve the function of shielding or non-shielding.

[0050] That is, when the coil 50 is not energized, the lock structure is fixed to one end of the second protrusion 315, restricting the movement of the shading member 30 and locking the shading sheet 32 ​​in the blocking position or the non-blocking position. When the coil 50 is energized, the lock structure releases the shading member 30 and allows it to move. At the same time, the first magnet 40 is driven by the energized coil to move the shading member 30 in the +X axis direction or the -X axis direction, changing the position of the shading sheet 32. The control program is simple and easy to implement.

[0051] The lock structure essentially achieves the function of maintaining the user's last setting (blocking or non-blocking), and the state of the shading device will not be abnormally changed by hand or external objects: for example, after the user blocks the camera, someone opens the shading sheet by hand.

[0052] In practical applications, as long as the shading member 30 is preset in the blocking position, the shading device can be in a normal blocking state. When the blocking state needs to be released, the coil is passed with a current in a preset direction, and the functions of releasing the lens blocking and releasing the shading member position lock can be achieved in one step. When the shading member 30 reaches the non-blocking position, the coil can be powered off, and the functions of lens non-blocking and shading member position lock can be achieved in one step. When the camera device is finished, it is only necessary to pass the current in the opposite direction to the coil.

[0053] Since the lock structure is assembled from the second surface 22 of the base 20 like the coil 50, the assembly efficiency is higher. In order to prevent the limit switch 80 from falling off the fixing column 291, the lock structure also includes a back cover 90 fixed on the second surface 22 of the base 20. The back cover 90 only covers the limit switch 80, and can be made of metal or plastic.

[0054] In this embodiment, by adding a lock structure, the shading device can work more accurately and stably. Even if the electronic device is in a moving or tilted state, the operation of the shading device will not be affected.

[0055] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0056] In the present invention, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention may be understood according to specific circumstances.

[0057] Although the description of the present invention is made in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and variations based on the above content. Therefore, all such substitutions, improvements and variations are included within the spirit and scope of the appended claims.

Claims

1. A light-shielding device, characterized in that, Comprising: Cover plate; Base, which has a first surface opposite to the cover plate and a second surface opposite to the first surface, and a first receiving groove and a third receiving groove are formed on the second surface; Light-shielding member, which is movably arranged between the cover plate and the base; First magnet fixed on the light-shielding member; Coil, which is fixed in the first receiving groove; Second magnet, which is fixed in the third receiving groove; and Limit switch, which is fixed in the third receiving groove; Wherein, when currents in opposite directions flow through the coil respectively, different magnetic fields generated can drive the first magnet to move in two opposite directions respectively, and then drive the light-shielding member to move to achieve the functions of shielding and non-shielding; The light-shielding member includes a push plate, and a second protruding portion extends from the push plate towards the base, and a chute for inserting the second protruding portion is correspondingly formed on the base, and the chute is a through groove communicating with the third receiving groove; A first protruding portion protruding towards the cover plate is further formed on the push plate, and an avoidance position for the first protruding portion is formed on the cover plate; A fixing post extends from the bottom of the third receiving groove, and the second protruding portion passes through the chute and is inserted into the third receiving groove; The limit switch includes a rotating portion rotatably connected to the fixing post, a passive portion extending outward from the rotating portion and located between the second magnet and the coil, and a locking portion extending outward from the rotating portion and located between the second protruding portion and the second magnet; when the coil is not energized, the limit switch is attracted by the second magnet to limit the second protruding portion, and when the coil is energized, the limit switch is attracted by the magnetic field of the coil and rotates, thereby releasing the limit on the second protruding portion.

2. The light-shielding device according to claim 1, wherein A second receiving groove for receiving the first magnet is formed on one side of the first protruding portion facing the base.

3. The light-shielding device according to claim 1, characterized in that, An elastically deformable elastic portion is fixed on the first surface of the base, and a chute is formed on the light-shielding member. When the light-shielding member moves, the elastic portion contacts the two side walls of the chute of the light-shielding member.

4. The light-shielding device according to claim 1, characterized in that, It further includes a rear cover fixed on the second surface of the base for preventing the limit switch from detaching from the fixing post.

5. The light-shielding device according to claim 1, characterized in that, It further includes an iron core fixed inside the coil.

6. The light-shielding device according to claim 1, wherein, A through groove penetrating the first surface is further formed at the bottom of the first receiving groove, and the through groove enables the first magnet to be spaced opposite to the coil at any position of the light-shielding member.

7. The light-shielding device according to claim 1, wherein A plurality of convex columns for reducing the contact area between the push plate and the base extend from the push plate towards the base, and at least grooves for receiving the convex columns are formed on the first surface of the base.

8. An electronic device, comprising a camera device, characterized in that, It further includes a light-shielding device according to any one of claims 1 to 7. When the light-shielding member moves, it can achieve the functions of shielding and non-shielding the lens of the imaging device.

Images