Mems optical switch device

Abstract

The invention discloses a MEMS optical switch device, comprising a shell, a PCB board is arranged in the shell, a MEMS component is arranged on the PCB board, and a vibration reduction installation mechanism, wherein the vibration reduction installation mechanism comprises: a frame, which is used to be connected to a fixed foundation; a swing rod, the swing rod is elastic, one end of which is swingably connected to the frame, and the other end is swingably connected to the shell, and the shell is suspended in the frame through a plurality of the swing rods; the invention uses a plurality of swing rods to connect the frame and the shell, when the frame is hit, due to inertia, the shell will maintain its original static state, while the frame is moved by force, and a relative motion is formed between the frame and the shell, so that the swing rod swings, and different swinging directions all cause elastic deformation of the swing rod, so that the elastic force of the swing rod increases, and the elastic force of the swing rod hinders the vibration of the frame, so that the vibration of the frame is gradually released during the process of being transmitted to the shell, so as to reduce the vibration force on the shell as much as possible.

Description

Technical Field

[0001] The invention relates to the technical field of optical switches, in particular to a MEMS optical switch device. Background Art

[0002] As is known, optical switches with various switching principles and implementation technologies have been widely proposed in optical transmission networks. Optical switches with different principles and technologies have different characteristics and are suitable for different occasions. Currently, the commonly used optical switches are as follows: mechanical optical switches, Mems optical switches, inkjet bubble optical switches, thermo-optical effect optical switches, liquid crystal optical switches, holographic optical switches, acousto-optic switches, liquid grating optical switches, SOA optical switches, etc. Among them, Mems optical switches have gradually become a substitute for the original mainstream mechanical optical switches because their power consumption is 1 / 10-1 / 20 of that of mechanical switches, their size is 1 / 10 of that of mechanical switches, and they can be automatically debugged and produced, and their products have better consistency.

[0003] For example, the invention patent with announcement number CN201410765548.5, publication date March 25, 2015, and titled "A Mems Optical Switch" includes a main Mems optical switch body, a light-blocking mirror of the main Mems optical switch body is movably arranged on the switch optical path of optical fiber transmission, a triangular prism reflector with a vertical cross-section is fixedly connected to the top of the light-blocking mirror of the main Mems optical switch body, and the center line of the triangular prism reflector is perpendicular to the total signal light output by the input optical fiber, and the reflective surface of the triangular prism reflector facing the input optical fiber side is recorded as the front reflective surface, and the reflective surface of the triangular prism reflector facing the output optical fiber side is recorded as the rear reflective surface; the angle between the output signal light of the input optical fiber and the front reflective surface is an acute angle, and the angle between the input signal light of the output optical fiber and the rear reflective surface is an acute angle; and it also includes a plurality of auxiliary Mems optical switch bodies.

[0004] Since the optical switch is a high-precision device, it has strict requirements on the use environment, such as vibration, humidity, temperature and even air pressure. For example, the utility model with application number CN202122561651.6 provides a pressure balance control method. In the prior art, in order to achieve the control of these parameters, the Mems component is encapsulated in a fully enclosed cylinder so that the humidity, pressure and other parameters can be controlled, and the temperature is controlled by the temperature control mechanism. However, for vibration, the prior art often only uses springs as vibration dampers, and the spring's ability to deform in its axial direction is unquestionable. However, when the optical switch device is hit, its impact position and the direction of the vibration generated after the impact are difficult to predict, and the uncertainty is high. Obviously, at this time, the spring must not only be able to expand and contract in the axial direction to generate elastic force to buffer the vibration force, but the springs used in the prior art are difficult to meet this requirement. Summary of the invention

[0005] The purpose of the present invention is to provide a Mems optical switch device to solve the technical problems in the related art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A MEMS optical switch device comprises a shell, a PCB is arranged inside the shell, a MEMS component is arranged on the PCB, and a vibration reduction mounting mechanism is also included, the vibration reduction mounting mechanism comprises: a frame, which is used to be connected to a fixed base; a rocker, the rocker is elastic, one end of which is swingably connected to the frame, and the other end is swingably connected to the shell, and the shell is suspended in the frame through a plurality of the rocker.

[0008] As mentioned above, the frame body is a rectangular parallelepiped that matches the shell body, and two corresponding vertices on the frame body and the shell body are connected via a swing rod.

[0009] As mentioned above, all the edges of the frame are made of soft elastic material, and each surface of the frame is made of hard material, and each surface is embedded between the corresponding four edges.

[0010] As mentioned above, the outer side of each face of the frame body protrudes from the edge corresponding to the face.

[0011] As mentioned above, a wedge-shaped groove is provided on the portion of the edge connected to the surface. When the surface approaches the shell, the extrusion force exerted by the wedge-shaped surface of the wedge-shaped groove on the surface gradually increases.

[0012] As mentioned above, when the swing rod is a spring sheet and the shell is suspended in the frame through a plurality of swing rods, the swing rod is in an arc shape.

[0013] As mentioned above, the swing rod is composed of a main section and two auxiliary sections slidably plugged at both ends of the main section, and a first elastic member is connected between the auxiliary section and the main section in the sliding direction.

[0014] As mentioned above, a slide groove is provided on the sub-section, and the slide groove is divided into a linear motion section and a swing motion section provided at both ends of the linear motion section. The main section performs linear motion in the linear motion section, and the main section performs circumferential swing in the swing motion section.

[0015] As mentioned above, the main section is divided into two parts from the middle and the two parts are rotatably connected, and the rotation direction of the two parts is cross-arranged with the swing direction of the main section in the swing motion section; when the main section moves in the linear motion section, the two parts of the main section are locked by the first locking mechanism; when the overall length of the swing rod reaches the longest, the main section enters the corresponding swing motion section, and the first locking mechanism releases the lock between the two parts of the main section based on the squeezing force of the main section

[0016] As mentioned above, the sub-section is divided into two parts and the two parts are rotatably connected, and the rotation direction of the two parts is cross-arranged with the swing direction of the main section in the swing motion section; when the main section moves in the linear motion section, the two parts of the sub-section are locked by the second locking mechanism; when the overall length of the rocker arm reaches the shortest, the main section enters the corresponding swing motion section, and the second locking mechanism releases the lock between the two parts of the sub-section based on the squeezing force of the main section.

[0017] The beneficial effect of the present invention is that by using multiple rocker arms to connect the frame and the shell, when the frame is hit, due to inertia, the shell will maintain its original static state, while the frame will move under force, and relative motion will be formed between the frame and the shell, which will drive the rocker arms to swing. Different swinging directions will generate extrusion force or tension force on the rocker arms at different positions, so the elastic force of the rocker arms themselves increases, and the elastic force of the rocker arms hinders the vibration of the frame. In this way, the vibration of the frame is gradually released during the process of being transmitted to the shell, so as to reduce the vibration force on the shell as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 A schematic diagram of the overall three-dimensional structure of a Mems optical switch device provided by an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of a three-dimensional structure of a housing and a swing rod of a Mems optical switch device provided by another embodiment of the present invention;

[0021] Figure 3 A schematic diagram of a three-dimensional structure of a housing and a swing rod of a Mems optical switch device provided by another embodiment of the present invention;

[0022] Figure 4A schematic diagram of a cross-sectional structure of a frame of a Mems optical switch device provided by an embodiment of the present invention;

[0023] Figure 5 A schematic diagram of a planar structure of a swing arm of a MEMS optical switch device provided by another embodiment of the present invention;

[0024] Figure 6 A schematic diagram of a sub-section planar structure of a Mems optical switch device provided in yet another embodiment of the present invention;

[0025] Figure 7 for Figure 5 Schematic diagram of the cross-sectional structure at AA in the middle.

[0026] Description of reference numerals:

[0027] 1. Frame; 10. Wedge-shaped groove; 2. Shell; 3. Rocker; 30. Main section; 31. Sub-section; 32. Slide; 320. Linear motion section; 321. Swinging motion section; 33. First locking mechanism; 330. First extrusion block; 331. First extrusion rod; 332. Locking block; 333. First locking groove; 34. Second locking mechanism; 340. Second extrusion block; 341. Second locking groove; 342. Locking rod. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, Figure 1 To Attachment Figure 7 The present invention is further described in detail.

[0029] In one embodiment of the present invention, a MEMS optical switch device is provided, including a shell 2, wherein a PCB board is arranged in the shell 2, and a MEMS component is arranged on the PCB board, and also includes a vibration-damping mounting mechanism, wherein the vibration-damping mounting mechanism includes: a frame 1, which is used to be connected to a fixed foundation; a rocker rod 3, wherein the rocker rod 3 is elastic, one end of which is swingably connected to the frame 1, and the other end is swingably connected to the shell 2, and the shell 2 is suspended in the frame 1 through a plurality of the rocker rods 3.

[0030] Specifically, the shell 2 of the Mems optical switch device is generally a rectangular structure, with a PCB board inside, and Mems components arranged on the PCB board. Since the optical switch is a high-precision device, it has strict requirements on the use environment, such as vibration, humidity, temperature and even air pressure. Therefore, the shell 2 and its internal components are integrated into an integrated structure. When the existing Mems optical switch device is installed on a certain foundation such as a rack, the shell 2 vibrates when it is subjected to external forces. For example, if it falls off the foundation and falls onto the ground or other objects, or is hit by other objects after being installed on the foundation, the vibration force will be directly transmitted to the internal components, which will have a destructive effect on the Mems components therein.

[0031] In this embodiment, a frame 1 is arranged outside the shell 2, and the shell 2 is suspended inside the frame 1 by using a plurality of swing rods 3. The swing rod 3 is connected to the frame 1 in a swinging manner, and the swing rod 3 is also connected to the shell 2 in a swinging manner, wherein a freely swinging connection structure can be realized, and preferably a ball hinge is used, so that the swing direction of the swing rod 3 on the frame 1 is irregular, and the swing direction of the swing rod 3 on the shell 2 is irregular, so that no matter the frame 1 falls off and falls on the ground or other objects, or is hit by other objects after being installed on the foundation, in the relative movement of the frame 1 and the shell 2, no matter which one is vibrated by external force, the other will tend to maintain the original motion state:

[0032] That is, within a short period of time after the frame 1 is subjected to force vibration, its motion state changes. Since the pendulum rod 3 is hinged to it, the movement of the frame 1 will drive the pendulum rod 3 to move in the same state, while the shell 2 will maintain its original motion state without force vibration. The pendulum rod 3 is also hinged to the shell 2, so the shell 2 will also drive the pendulum rod 3 to do the same movement. The motion states of the frame 1 and the shell 2 are different, and the positions will be staggered, so that the pendulum rod 3 swings along the hinge points between it and the frame 1 and the shell 2. The swing of the pendulum rod 3 swings at a certain hinge point and its motion trajectory is an arc. Then a part of the frame 1 and a part of the shell 2 are connected. If the two parts are far apart, the original length of the pendulum rod 3 at rest here cannot meet the above-mentioned distance away, and the pendulum rod 3 at this place will be stretched and lengthened by the tensile force. On the contrary, the other part relatively in the frame 1 and the other part relatively on the shell 2 are close to each other, and the original length of the pendulum rod 3 at rest here also cannot meet the above-mentioned distance close, and the pendulum rod 3 at this place will be squeezed and shortened by the extrusion force. Since the pendulum rod 3 itself is elastic, the deformation of the pendulum rod 3 will increase its own elastic force, and the elastic force can resist the vibration force transmitted from the frame 1 to cushion the impact of the vibration force on the shell 2.

[0033] Part of the elastic force generated by the deformation of the pendulum rod 3 will resist the vibration force transmitted from the frame 1, and the other part will act on the part of the shell 2 connected to it. The originally stretched pendulum rod 3 will shrink, pulling the part of the shell 2 connected to it to move, and the originally squeezed and shortened pendulum rod 3 will stretch, pushing the part of the shell 2 connected to it to move. In this way, the shell 2 will swing in the frame 1 with the hinge points of each pendulum rod 3 and the frame 1 as the base point. When the vibration frequency gradually decreases, the transmitted vibration force will also gradually decrease, and the elastic force generated by the deformation of the pendulum rod 3 will also gradually decrease. If the shell 2 wants to swing one point, it must first overcome the gravity. Because the height of the shell 2 will change when it swings, gravity will affect its height change, and the gravity of the shell 2 will offset part of the elastic force from the pendulum rod 3. In this way, the elastic force of the pendulum rod 3 gradually decreases, and the swing amplitude of the shell 2 will also become smaller and smaller, until the frame 1 and the shell 2 are again in a relatively static state, thereby achieving vibration reduction protection for the Mems optical switch device.

[0034] Furthermore, the shape of the frame 1 is a rectangular parallelepiped that matches the shape of the shell 2, and the two corresponding vertices on the frame 1 and the shell 2 are connected by a rocker rod 3; specifically, the Mems optical switch device is small in size and easy to carry and install, so the volume of the frame 1 mounted on the outside of its shell 2 cannot be too large. In this embodiment, the frame 1 is equivalent to a proportional enlargement of the shell 2, such as 1.1-1.3 times the original size of the shell 2. At this time, the surfaces of the frame 1 and the surfaces of the shell 2 can reserve a certain space for the swing of the shell 2 without contact.

[0035] The pendulum rod 3 is arranged between the two corresponding vertices of the frame 1 and the shell 2. The distance between the two corresponding vertices is the farthest. The deformation space provided for the pendulum rod 3 here is larger than that in other places. The shell 2 cannot contact the frame 1 during the swinging process. If the pendulum rod 3 is arranged between the two corresponding surfaces of the frame 1 and the shell 2, the distance between the two surfaces will become shorter, and then the surface of the frame 1 may contact the surface of the shell 2 through the pendulum rod 3. When the pendulum rod 3 is arranged at the two corresponding vertices of the frame 1 and the shell 2, when the corresponding surfaces of the frame 1 and the shell 2 are close, the vibration force of the frame 1 will not be transmitted to the shell 2 through other objects, and the position of the pendulum rod 3 is inclined. When the frame 1 transmits the vibration force to the pendulum rod 3, it does not give the pendulum rod 3 an axial positive pressure in the positive direction of the frame 1 movement, but a component force. In this way, the force applied to the pendulum rod 3 is less than the vibration force brought by the frame 1, so that in the process of the frame 1 transmitting the vibration force to the shell 2, the vibration force is partially buffered in the first step.

[0036] Preferably, all edges of the frame 1 are made of soft elastic material, and each face of the frame 1 is made of hard material, and each face is embedded between the corresponding four edges; specifically, the edges are made of soft elastic material, such as rubber, and the material of the frame 1 can be the same as that of the shell 2, or other hard materials, such as metal, can be used. When the frame 1 is hit or falls, if the force is placed on the edge, the material of the edge itself can buffer part of the impact force and reduce the vibration amplitude. If the force is placed on a certain face of the frame 1, since the face is embedded in the corresponding four edges, the force displacement of the face squeezes the corresponding edge, and the material of the edge itself can still buffer part of the impact force.

[0037] Preferably, the outer side of each face of the frame 1 protrudes from the edge corresponding to the face; specifically, when the edge is subjected to impact force, it will be transmitted to the shell 2 through the rocker arm 3, and when the face is subjected to impact force, it needs to be transmitted to the edge first, then to the rocker arm 3, and then to the shell 2. Therefore, in this embodiment, the outer side of the face of the frame 1 is set to protrude from the edge corresponding to the face. In this way, when the frame 1 is hit, there is a high probability that the hit part will appear on the face. After the face is hit, multiple transmissions are required to transmit the impact force to the shell 2, and the impact force will be continuously buffered and weakened during the transmission process.

[0038] Furthermore, a wedge-shaped groove 10 is provided on the portion of the edge connected to the surface. When the surface approaches the shell 2, the extrusion force exerted by the wedge surface of the wedge-shaped groove 10 on the surface gradually increases. Specifically, each surface of the frame 1 is embedded in the corresponding four edges. Then, after the surface is subjected to impact force, the surface will directly squeeze the edge, and the edge will undergo elastic deformation to generate elastic force to buffer the extrusion force from the surface, thereby buffering part of the impact force exerted on the surface. In this embodiment, the setting of the wedge-shaped groove 10 is equivalent to the wedge-shaped surfaces of the two wedge-shaped grooves 10 on the two edges corresponding to the two sides of the relative position of the surface being arranged in a similar figure eight shape, so that when the surface is hit After the force is applied, the position moves toward the shell 2, then the surface will slide along the inclined direction of the wedge surface, gradually squeezing the wedge surface during the sliding process, and the wedge surface will also squeeze the surface. During the squeezing process, the wedge surface is equivalent to giving the surface a resistance, so that the movement speed of the surface gradually slows down, and the squeezing force given by the surface to the wedge surface makes the edge corresponding to the wedge surface also undergo elastic deformation. The resistance to movement given by the wedge surface, plus the elastic force generated by the elastic deformation of the edge, can jointly counteract the impact force exerted on the surface, that is, after the surface is hit, it gradually applies pressure to the edge, and in this process, compared with the direct squeezing of the edge by the surface, the buffering of the impact force accounts for a larger proportion, and the buffering effect is better.

[0039] In another embodiment of the present invention, the swing rod 3 is a spring sheet, and when the shell 2 is suspended in the frame 1 through multiple swing rods 3, the swing rod 3 is in an arc shape; specifically, when the frame 1 is not hit, the shell 2 can be hung at the center of the frame 1 by using multiple swing rods 3, and the spring sheet is also in an arc shape at this time, that is, the shell 2 can be suspended in the frame 1 by using the interaction force between the multiple spring sheets, and then when the frame 1 is hit, the spring sheet is stretched or squeezed to generate elastic force to buffer part of the vibration force from the frame 1. After the frame 1 is hit, it moves irregularly, causing the shell 2 to swing irregularly. Through the spherical hinge between the swing rod 3 and the frame 1 and the spherical hinge between the swing rod 3 and the shell 2, as well as the elastic deformation of the swing rod 3, the swing amplitude of the shell 2 can be basically met.

[0040] In another embodiment of the present invention, the rocker arm 3 is composed of a main section 30 and two sub-sections 31 slidably inserted at both ends of the main section 30, and a first elastic member is connected between the sub-section 31 and the main section 30 in the sliding direction; specifically, when the frame 1 is not hit, the shell 2 can be suspended at the center of the frame 1 by using multiple rocker arms 3. Due to the gravity of the shell 2, the rocker arm 3 above the shell 2 will be stretched, so that the elastic force of the first elastic member there is increased, and the rocker arm 3 below the shell 2 will be squeezed, so that the elastic force of the first elastic member there is also increased. In this embodiment, the overall gravity of the preferred shell 2 and its internal components is not sufficient to stretch or squeeze the first elastic member. Therefore, when the first elastic member does not generate elastic force, the shell 2 will be suspended at the center of the frame 1.

[0041] When the frame 1 is hit by external force, some of the rocker arms 3 are stretched, that is, the auxiliary section 31 is partially pulled out of the main section 30, which increases the elastic force of the first elastic member; some of the rocker arms 3 are squeezed, that is, the auxiliary section 31 is squeezed into a part of the main section 30, which increases the elastic force of the first elastic member. The increased elastic force of the first elastic member buffers the vibration force from the frame 1. After being hit, the frame 1 moves irregularly, causing the shell 2 to swing irregularly. Through the spherical hinges between the rocker arm 3 and the frame 1 and the spherical hinges between the rocker arm 3 and the shell 2, as well as the elastic deformation of the rocker arm 3, the swing amplitude of the shell 2 can basically be met.

[0042] Furthermore, a slide groove 32 is provided on the sub-section 31, and the slide groove 32 is divided into a linear motion section 320 and a swinging motion section 321 provided at both ends of the linear motion section 320. The main section 30 performs linear motion in the linear motion section 320, and the main section 30 performs circumferential swing in the swinging motion section 321.

[0043] Specifically, in another embodiment of the present invention, the swing arm 3 is a spring sheet, and in the initial state, the spring sheet is in an arc shape, so no matter whether the spring sheet is squeezed or stretched, its bending position is basically fixed, and with the ball hinge, it can basically achieve multi-directional changes. However, although the ball hinge can enable the swing arm 3 to swing in multiple directions, the swing amplitude is limited. In another embodiment of the present invention, the telescopic swing arm 3 is combined with the ball hinge to basically achieve multi-directional changes, wherein the swing amplitude is also affected by the ball hinge, and the swing range of the shell 2 is limited. When the frame 1 is subjected to a large impact force, the shell 2 swings to the maximum position, but the component of its gravity at the maximum position still cannot prevent the shell 2 from continuing to swing. Then, when the swing amplitude of the ball hinge reaches the maximum, a collision will be formed, and the swing of the shell 2 ends. Due to the impact at the ball hinge, the shell 2 vibrates.

[0044] Therefore, in this embodiment, when the impact force applied to the frame 1 is small and the vibration amplitude is small, the rocker arm 3 is compressed or pulled. At this time, the main section 30 is performing linear motion in the linear motion section 320 on the sub-section 31, and the elastic force of the first elastic member becomes larger. Combined with the ball hinge, the swing amplitude of the shell 2 is within a small range. When the impact force applied to the frame 1 is large and the vibration amplitude becomes larger, the rocker arm 3 is compressed or pulled, so that the main section 30 enters the swing motion section 321 from the linear motion section 320 on the sub-section 31. After the swing amplitude of the ball hinge itself reaches the maximum, the main section 30 and the sub-section 31 will swing at the connection point between the main section 30 and the swing motion section 321, thereby expanding the swing range. Even if the ball hinge itself is hit, the vibration will basically not be transmitted to the shell 2.

[0045] In the above, the main section 30 can make a linear motion in the linear motion section 320 and make a circumferential swing in the swinging motion section 321, that is, the width dimension of the linear motion section 320 is smaller than the radial dimension of the swinging motion section 321, and the part of the main section 30 that slides in the linear motion section 320 is a cylinder with the same radial dimension as the swinging motion section 321, but two parts are cut off from this part to form a rectangular surface. When this part of the main section 30 slides in the linear motion section 320, the two rectangular surfaces correspond to the two side walls of the linear motion section 320 respectively and are in sliding contact. In this way, the main section 30 can slide in the linear motion section 320 and rotate in the swinging motion section 321.

[0046] Preferably, the main section 30 is divided into two parts in the middle and the two parts are rotatably connected, and the rotation direction of the two parts is cross-arranged with the swing direction of the main section 30 in the swing motion section 321; when the main section 30 moves in the linear motion section 320, the two parts of the main section 30 are locked by the first locking mechanism 33; when the overall length of the rocker arm 3 reaches the longest, the main section 30 enters the corresponding swing motion section 321, and the first locking mechanism 33 releases the lock between the two parts of the main section 30 based on the squeezing force of the main section 30.

[0047] The first locking mechanism 33 includes a first extrusion block 330 slidably arranged on a part of the main section 30, the first extrusion block 330 is connected to a first extrusion rod 331, a second elastic member is connected between the first extrusion rod 331 and a part of the main section 30, a locking block 332 is provided on the first extrusion rod 331, and another part of the main section 30 is provided with a first locking groove 333 that matches the locking block 332. When the locking block 332 is plugged into the first locking groove 333, the two parts of the main section 30 are on the same horizontal line.

[0048] Specifically, after the swing amplitude of the ball hinge reaches the maximum, after the main section 30 enters the swing motion section 321 from the linear motion section 320, although the main section 30 and the auxiliary section 31 can swing again, the direction of the swing is relatively single, which still limits the swing of the shell 2.

[0049] During operation, when the impact force on the frame 1 is small, the main section 30 slides on the linear motion section 320 on the sub-section 31. When the impact force on the frame 1 is large, a part of the swing rod 3 will be stretched to the longest state, and the swing rod 3 will swing with the ball hinge connected to the frame 1, and the swing amplitude will reach the maximum. At this time, the ball hinge at the connection between the swing rod 3 and the shell 2 will also swing to the maximum amplitude. After the main section 30 enters the swing motion section 321 from the linear motion section 320, the main section 30 will be connected with the swing motion section 321 in a circular manner. The shell 2 swings with the center of the rocker arm 3 as the swing axis. If the original swing direction of the rocker arm 3 is exactly the same as the swing direction of the main section 30 at this time, the shell 2 swings more smoothly. If the original swing direction of the rocker arm 3 is different from the swing direction of the main section 30 at this time, there will be extrusion between the main section 30 and the sub-section 31, causing the sub-section 31 to deflect with the ball hinge as the axis, so that the swing direction of the rocker arm 3 is adjusted to the same as the original swing direction. If so, there is a high probability of extrusion between the main section 30 and the sub-section 31, and the wear will become serious.

[0050] Therefore, in this embodiment, during the travel of the main section 30 from the linear motion section 320 into the swing motion section 321, the side wall of the swing motion section 321 exerts an extrusion effect on the first extrusion block 330, and the first extrusion block 330 drives the first extrusion rod 331 to move together to squeeze the second elastic member, and the movement of the first extrusion rod 331 drives the locking block 332 to gradually disengage from the first locking groove 333, until the main section 30 completely enters the swing motion section 321, the locking block 332 is completely disengaged from the first locking groove 333, and the two parts of the main section 30 can swing relative to each other, and the direction is the same as that of the main section 30 in the swing motion section The swinging directions in 321 are arranged in a cross shape, forming the rotation principle of the universal joint. In this way, even if the original swinging direction of the rocker arm 3 is different from the subsequent swinging direction of the main section 30, the wear between the main section 30 and the sub-section 31 will be effectively reduced, and the swinging direction of the shell 2 will be more multi-directional. When the main section 30 swings on the sub-section 31, the first elastic member will bend (non-axial stretching or compression) to generate elastic force. This elastic force makes the main section 30 and the sub-section 31 tend to always return to the same horizontal line. Therefore, after the frame 1 and the shell 2 are relatively stationary again, the rocker arm 3 can return to the initial state under the action of the rebound force of the first elastic member.

[0051] Preferably, the sub-section 31 is divided into two parts and the two parts are rotatably connected, and a third elastic member is provided at the rotational connection of the two parts of the sub-section 31, and the rotation direction of the two parts is cross-arranged with the swing direction of the main section 30 in the swing motion section 321; when the main section 30 moves in the linear motion section 320, the two parts of the sub-section 31 are locked by the second locking mechanism 34; when the overall length of the rocker arm 3 reaches the shortest, the main section 30 enters the corresponding swing motion section 321, and the second locking mechanism 34 releases the lock between the two parts of the sub-section 31 based on the squeezing force of the main section 30.

[0052] The second locking mechanism 34 includes two second extrusion blocks 340, a second extrusion block 340 is slidably provided on a part of each sub-section 31, a second locking groove 341 is opened on the other part of the sub-section 31, a locking rod 342 is rotatably provided on a part of the sub-section 31 and a torsion spring is provided at the rotating position, when the main section 30 is in the linear motion section 320, the locking rod 342 is plugged into the second locking groove 341.

[0053] Specifically, when the impact force on the frame 1 is relatively small, the main section 30 slides on the linear motion section 320 on the sub-section 31. When the impact force on the frame 1 is relatively large, a part of the swing rod 3 will be squeezed to the shortest state, and the aforementioned problem will also occur, that is, the swing amplitude reaches the maximum, and the ball hinge at the connection between the swing rod 3 and the housing 2 will also swing to the maximum amplitude. After the main section 30 enters the swing motion section 321 from the linear motion section 320, the main section 30 will use the center of the connection between it and the swing motion section 321 as the swing axis. The shell 2 swings at the same point. If the original swing direction of the swing rod 3 is exactly the same as the swing direction of the main section 30 at this time, the shell 2 swings more smoothly. If the original swing direction of the swing rod 3 is different from the swing direction of the main section 30 at this time, there will be extrusion between the main section 30 and the sub-section 31, causing the sub-section 31 to deflect with the ball hinge as the axis, so that the swing direction of the swing rod 3 is adjusted to the same as the original swing direction. If so, there is a high probability of extrusion between the main section 30 and the sub-section 31, and the wear will become serious.

[0054] Therefore, in the present embodiment, during the stroke of the main section 30 entering the swinging motion section 321 from the linear motion section 320, the second extrusion block 340 squeezes one end of the locking rod 342, causing the locking rod 342 to rotate about its rotation connection point with a part of the auxiliary section 31, and the other end of the locking rod 342 gradually disengages from the second locking groove 341. When the other end of the locking rod 342 is completely disengaged from the second locking groove 341, a part of the main section 30 also completely enters the swinging motion section 321. At this time, the overall length of the swing rod 3 is the shortest, and the two parts of the auxiliary section 31 can swing relative to each other, and the direction is cross-arranged with the swinging direction of the main section 30 in the swinging motion section 321, forming the rotation principle of the universal joint. When the two parts of the auxiliary section 31 swing relative to each other, the elastic force of the third elastic member increases, so that after the frame 1 and the shell 2 are in a stationary state, under the action of the rebound force of the third elastic member, the two parts of the auxiliary section 31 can be on the same horizontal line again.

[0055] In summary, when the rocker arm 3 is stretched to its longest position, the lock between the two parts of the main section 30 is released, and the two parts of the main section 30 can rotate relative to each other, and each part of the main section 30 is connected to the swing motion segment 321 at the corresponding position on the sub-section 31, thus forming a rotation mode of the universal joint. When the rocker arm 3 is squeezed to its shortest position, the lock between the two parts of the sub-section 31 is released, and the two parts of the sub-section 31 can rotate relative to each other, and each part of the main section 30 is connected to the swing motion segment 321 at the corresponding position on the sub-section 31, thus forming a rotation mode of the universal joint. In this way, the swing range of the shell 2 can be expanded and the swing directions of the shell 2 can be increased to further buffer the vibration force from the frame 1.

[0056] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A MEMS optical switch device, comprising a housing, a PCB board is arranged in the housing, and a MEMS component is arranged on the PCB board, characterized in that: It also includes a vibration reduction mounting mechanism, the vibration reduction mounting mechanism comprising: A frame body, which is used to be connected to a fixed foundation; A swing rod, the swing rod is elastic, one end of which is swingably connected to the frame, and the other end of which is swingably connected to the shell, and the shell is suspended in the frame through a plurality of the swing rods; The swing rod is composed of a main section and two sub-sections slidably plugged at both ends of the main section, and a first elastic member is connected between the sub-section and the main section in the sliding direction; The sub-section is provided with a slide groove, and the slide groove is divided into a linear motion section and a swing motion section provided at both ends of the linear motion section; The main section performs linear motion in the linear motion section, and the main section performs circumferential swing in the swing motion section.

2. The Mems optical switch device according to claim 1, characterized in that: The frame body is in the shape of a cuboid that matches the shell body, and two vertices on the frame body corresponding to the two vertices on the shell body are connected via a swing rod.

3. The Mems optical switch device according to claim 2, characterized in that: All edges of the frame are made of soft elastic material, and each surface of the frame is made of hard material, and each surface is embedded between the corresponding four edges.

4. The Mems optical switch device according to claim 3, characterized in that: The outer side of each face of the frame body protrudes from the edge corresponding to the face.

5. The Mems optical switch device according to claim 4, characterized in that: A wedge-shaped groove is provided on the portion of the edge connected to the surface. When the surface approaches the shell, the extrusion force exerted by the wedge-shaped surface of the wedge-shaped groove on the surface gradually increases.

6. The Mems optical switch device according to claim 1, characterized in that: The swing rod is a spring sheet, and when the shell is suspended in the frame through a plurality of swing rods, the swing rod is in an arc shape.

7. The Mems optical switch device according to claim 1, characterized in that: The main section is divided into two parts from the middle and the two parts are rotatably connected, and the rotation direction of the two parts is arranged crosswise with the swing direction of the main section in the swing motion section; When the main section moves in the linear motion section, the two parts of the main section are locked by a first locking mechanism; When the overall length of the swing rod reaches the longest, the main section enters the corresponding swing motion section, and the first locking mechanism releases the lock between the two parts of the main section based on the squeezing force of the main section.

8. The Mems optical switch device according to claim 1, characterized in that: The auxiliary section is divided into two parts and the two parts are rotatably connected, and the rotation direction of the two parts is arranged crosswise with the swing direction of the main section in the swing motion section; When the main section moves in the linear motion section, the two parts of the auxiliary section are locked by a second locking mechanism; When the overall length of the rocker arm reaches the shortest, the main section enters the corresponding rocking motion section, and the second locking mechanism releases the lock between the two parts of the sub-section based on the squeezing force of the main section.

Images