MEMS lever self-locking fuze safety and relief safety device

Abstract

The invention belongs to the technical field of weapons and ammunition, and particularly discloses an MEMS lever self-locking fuse safety and release safety device which comprises an upper cover plate, a lower cover plate and a structural layer. A transmission channel is formed in the lower cover plate; and the structural layer is arranged between the upper cover plate and the lower cover plate. According to the MEMS lever self-locking fuze safety and safety release device, during launching, an isolation sliding block assembly drives a lever pin to rotate to be separated from the track of the isolation sliding block assembly under overload, an electric heating actuator is powered on to release constraint, and safety release is achieved; in the falling process, the inertia sliding block assembly limits displacement of the isolation sliding block assembly through the lever pin, and the isolation sliding block assembly is forced to reset to the safe position. The lever principle is coupled with a spring mass system, and the contradiction between service processing safety and launching reliability is solved. The device not only avoids the brittleness defect of the silicon-based material, but also has high safety and reliability. In addition, the system has a safety state-to-be-transmitted state bidirectional conversion capability.

Description

Technical Field

[0001] This invention relates to the field of weapon and ammunition technology, and in particular to a MEMS lever self-locking fuse safety and release device. Background Technology

[0002] With the trend towards miniaturization, integration, and intelligence in weapon systems, MEMS safety and disarming devices have demonstrated significant advantages in the field of fuse safety systems due to their micron-scale structure and high functional integration. However, microscale effects have a significant impact on the reliability and safety of MEMS safety and disarming devices: silicon-based microbeams, electrothermal actuators, and other components are prone to deformation and fracture failure due to their brittle characteristics; at the same time, compared with the macroscale, the system damping and surface effects are greater at the microscale, resulting in a significant increase in the failure rate of components requiring precise control (such as microgear systems and micro Z-tooths), and the possibility of failure modes such as jamming.

[0003] For low-overload launch environments such as self-propelled munitions (e.g., missiles, loitering munitions), the aforementioned problems are even more pronounced. MEMS safety and disarming devices used in such munitions should have a simple structure to reduce failure rates and minimize the impact of microscale effects on the accuracy of their operation. Furthermore, the high cost and destructive power of self-propelled munitions necessitate that their safety and disarming devices possess reversible states. Typical safety and disarming devices only support a unidirectional transition from a safe state to a ready-to-fire state. When target identification errors, target disappearance, or fuze control malfunctions occur, the munition already in the ready-to-fire state will be in an uncontrollable and dangerous condition, potentially causing unintended damage.

[0004] In summary, existing MEMS security and decryption devices suffer from insufficient security, complex structure, and poor reliability. Summary of the Invention

[0005] This invention provides a MEMS lever self-locking fuse safety and release device, which can solve the problems of insufficient safety, complex structure and poor reliability of existing MEMS safety and release devices.

[0006] A MEMS lever-operated self-locking fuse safety and release device includes: Top cover; The lower cover plate has a transmission channel. A structural layer is located between the upper and lower cover plates. The structural layer is a frame structure. A fuse safety and release device is provided within the structural layer. The fuse safety and release device includes an inertial slider assembly, an isolation slider assembly, a lever pin, and an electrothermal actuator located within the structural layer. The lever pin and the electrothermal actuator are both located between the inertial slider assembly and the isolation slider assembly. The lever pin includes a connecting shaft and a lever that can rotate around the connecting shaft. The two ends of the lever abut against the inertial slider assembly and the isolation slider assembly, respectively. A transmission hole is provided on the isolation slider assembly. The MEMS lever-type self-locking fuse safety and deactivation device has an initial state, a launch state, and a drop state: Between the initial state and the launch state, the isolation slider assembly moves along a first direction to connect the transmission hole with the transmission channel; Between the initial state and the falling state, the inertial slider assembly moves along the second direction, and the isolation slider assembly is locked by the lever to prevent communication between the transmission hole and the transmission channel.

[0007] Furthermore, the inertial slider assembly includes an inertial slider and a planar tension spring disposed at the distal end of the inertial slider, and a limiting slider is provided at the proximal end of the inertial slider; The isolation slider assembly includes an isolation slider and a planar compression spring located near the end of the isolation slider, and the transmission hole is formed on the isolation slider; The lever is divided into a long arm segment and a short arm segment by the connecting shaft, and the long arm segment and the short arm segment respectively abut against the inertial slider assembly and the isolation slider assembly.

[0008] Furthermore, a groove is provided on one side of the inertial slider near the isolation slider; The isolating slider has a protrusion on one side near the inertial slider.

[0009] Furthermore, in the initial state, the end of the long arm segment falls within the groove; The end of the short arm segment is in contact with the proximal end of the protrusion in the initial state; The distal end of the electrothermal actuator is positioned close to the proximal end of the protrusion. The transmission hole and the transmission channel are not connected.

[0010] Furthermore, in the initial state, there is a buffer gap between the distal end of the electrothermal actuator and the proximal end of the protrusion.

[0011] Furthermore, in the launch state, the isolation slider moves along the first direction due to inertia, and the protrusion on the isolation slider pushes the lever to rotate, thereby moving the short arm segment away from the proximal end of the protrusion; The transmission hole is connected to the transmission channel; The distal end of the electrothermal actuator is used to lock the protrusion after the firing state is completed.

[0012] Furthermore, the drop state includes a first stage and a second stage; In the first stage of the drop state, the inertial slider and the isolation slider move along the second direction due to inertia, and the transmission hole and the transmission channel are not connected. In the second stage of the fall state, the inertial slider moves along the second direction, and the isolation slider moves in the opposite direction of the second direction.

[0013] The MEMS lever self-locking fuse safety and release device provided by the present invention uses a silicon-based electrothermal actuator and an isolating slider with a displacement difference. When falling, the isolating slider is "pressed back" and reset by the inertial slider before contacting the former, and the strength of the electrothermal actuator is not compromised.

[0014] Furthermore, groove A and groove B are respectively provided on the upper cover plate at the positions corresponding to the limiting slider and the isolation slider; The limiting slider and the isolation slider are slidably disposed in the slide groove A and slide groove B, respectively.

[0015] Furthermore, in the initial state, the planar compression spring is used to fix the isolation slider within the groove B.

[0016] Furthermore, in the initial state, the planar tension spring is used to fix the limiting slider in the groove A.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention provides a MEMS lever-driven self-locking fuse safety and deactivation device. During launch, under overload, the isolation slider assembly drives the lever pin to rotate and disengage from the isolation slider assembly's trajectory. The electrothermal actuator is energized to release the constraint, thus deactivating the safety mechanism. During a fall, the inertial slider assembly restricts the displacement of the isolation slider assembly through the lever pin, forcing it to return to a safe position. In other words, this invention proposes a MEMS lever-driven self-locking safety and deactivation device suitable for self-propelled munitions, coupling the lever principle with a spring-mass system to resolve the contradiction between operational safety and launch reliability. This device not only avoids the brittleness defects of silicon-based materials but also possesses high safety and reliability. Furthermore, it has a bidirectional switching capability between a safe state and a ready-to-fire state.

[0018] 2. The MEMS lever-type self-locking S&A device exhibits different motion characteristics under varying overload durations, automatically determining the current environmental conditions to trigger different action sequences. Its main functions are achieved through a mechanical structure, requiring no external decision-making and possessing extremely high inherent reliability.

[0019] 3. This invention possesses significant lightweight characteristics, greatly reducing the weight of the device while ensuring functional integrity, making it more convenient to carry and use. Furthermore, through miniaturization, the device size is successfully reduced, greatly improving space utilization efficiency. This invention also integrates the dual advantages of intelligence and integration, employing an electrothermal actuator to achieve intelligent control functions and organically integrating multiple functional modules to construct a highly collaborative working system, demonstrating a high level of integration.

[0020] 4. This invention provides a MEMS lever-type self-locking fuze safety and release device, which reduces processing difficulty and cost with its simple structure, meeting the requirements of large-scale production; at the same time, due to the fewer parts, the probability of failure is reduced, resulting in high reliability. In addition, the device has controllable release time, a recoverable safety state function, high fuze adaptability, stable movement duration, strong anti-interference ability, reasonable structural design, and high space utilization. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 A schematic diagram of the initial state of a MEMS lever self-locking fuse safety and deactivation device provided by the present invention; Figure 2 A schematic diagram of the upper cover plate of a MEMS lever self-locking fuse safety and release device provided by the present invention; Figure 3 A schematic diagram of the structural layer of a MEMS lever self-locking fuse safety and deactivation device in its initial state, provided by the present invention. Figure 4 This is a schematic diagram of the structure of the lower cover plate of a MEMS lever self-locking fuse safety and release device provided by the present invention; Figure 5 This is a front view of the initial state of a MEMS lever self-locking fuze safety and deactivation device provided by the present invention; Figure 6 A schematic diagram of the structure of the fuse safety and deactivation device in the first stage of the launch state in a MEMS lever self-locking fuse safety and deactivation device provided by the present invention; Figure 7 A schematic diagram of the structure of the fuse safety and deactivation device in the second stage of the launch state in a MEMS lever self-locking fuse safety and deactivation device provided by the present invention; Figure 8 A schematic diagram of the structure of the fuse safety and release device in the first stage of a drop state in a MEMS lever self-locking fuse safety and release device provided by the present invention; Figure 9 This is a schematic diagram of the structure of the fuse safety and release device in the second stage of a drop state in a MEMS lever self-locking fuse safety and release device provided by the present invention.

[0022] Explanation of reference numerals in the attached figures: 1. Upper cover plate; 2. Lower cover plate; 3. Structural layer; 4. Inertia slider; 5. Isolation slider; 6. Lever pin; 61. Connecting shaft; 62. Lever; 7. Planar tension spring; 8. Planar compression spring; 9. Electrothermal actuator; 91. Connecting arm; 92. Locking head; 10. Transmission hole; 11. Slide groove A; 12. Slide groove B; 21. Transmission channel; 41. Groove; 42. Limiting slider; 51. Protrusion. Detailed Implementation

[0023] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0024] like Figures 1 to 5 As shown, the present invention provides a MEMS lever self-locking fuse safety and release device, including an upper cover plate 1, a lower cover plate 2 and a structural layer 3, wherein the structural layer 3 is disposed between the upper cover plate 1 and the lower cover plate 2. Specifically, the structural layer 3 is encapsulated between the upper cover plate 1 and the lower cover plate 2, that is, the upper cover plate 1 and the lower cover plate 2 provide support and protection for the moving parts inside the structural layer 3. Among them, structural layer 3 is a frame structure. Specifically, structural layer 3 can be a rectangular frame structure. A fuse safety and release device is provided inside structural layer 3. The fuse safety and release device includes an inertial slider assembly, an isolation slider assembly, a lever pin 6, and an electrothermal actuator 9 disposed within the structural layer 3. The lever pin 6 is disposed between the inertial slider assembly and the isolation slider assembly. Specifically, the electrothermal actuator 9 may also be disposed between the inertial slider assembly and the isolation slider assembly. The lever pin 6 includes a connecting shaft 61 and a lever 62 that can rotate around the connecting shaft 61. The two ends of the lever 62 abut against the inertial slider assembly and the isolation slider assembly, respectively. The isolation slider assembly is provided with a transmission hole 10. The connecting shaft 61 is mounted on the lower cover plate 2. The lower cover plate 2 has a transmission channel 21. The opening and closing state of the transmission channel 21 is controlled by the position of the isolation slider assembly. That is, by changing the position of the isolation slider assembly, the position of the transmission hole 10 on the isolation slider assembly is changed, thereby realizing the connection / disconnection between the transmission hole 10 on the isolation slider assembly and the transmission channel 21, and finally realizing the opening and closing of the transmission channel 21. Based on this, the upper cover plate 1 and the lower cover plate 2 not only provide support and protection for the transmission hole 10 and the transmission channel 21, but also play the role of guiding and thickening the isolation slider assembly, thereby improving safety. Specifically, the inertial slider assembly and the isolation slider assembly are respectively located at the left and right ends inside the structural layer 3 with the frame structure, and both the inertial slider assembly and the isolation slider assembly can move along the length direction of the structural layer 3; while the lever pin 6 is composed of a connecting shaft 61 and a lever 62, and the lever 62 can rotate around the connecting shaft 61, and the connecting shaft 61 can be fixed on the lower cover plate 2. Specifically, the lever pin 6 is located at the center of the structural layer 3 with a frame structure, while the electrothermal actuator 9 is located at the lower end of the structural layer 3 with a frame structure, and the electrothermal actuator 9 is located below the lever pin 6.

[0025] Before describing the hinge assembly of the embodiments of the present invention, the application scenarios of the MEMS lever self-locking fuze safety and release device of the embodiments of the present invention will be described. However, the application scenarios of the MEMS lever self-locking fuze safety and release device of the embodiments of the present invention are not limited to the listed application scenarios.

[0026] This MEMS lever-operated self-locking fuse safety and deactivation device has initial state, launch state, and drop state in practical applications: 1. Between the initial state and the launch state, the isolation slider assembly moves along the first direction to connect the transmission hole 10 with the transmission channel 21; specifically, the connection is achieved when the transmission hole 10 and the transmission channel 21 are aligned. The first direction refers to the length direction of the structural layer 3. Specifically, the first direction refers to the direction from the upper end of the structural layer 3 to the lower end of the structural layer 3. During the process of the isolation slider assembly moving from the upper end of the structural layer 3 to the lower end of the structural layer 3, the transmission hole 10 on it is connected to the transmission channel 21 on the lower cover plate 2, thereby realizing the opening of the transmission channel 21. During this process, the inertial slider assembly can remain stationary and not participate in the motion even under overload conditions and the action of lever 62; 2. Between the initial state and the falling state, the inertial slider assembly moves along the second direction, and the isolation slider assembly is locked by lever 62 to prevent communication between the transmission hole 10 and the transmission channel 21. The second direction refers to the length direction of the structural layer 3. Specifically, the first direction refers to the direction from the upper end of the structural layer 3 to the lower end of the structural layer 3. When the inertial slider assembly moves from the upper end of the structural layer 3 to the lower end of the structural layer 3, due to the setting of the lever 62, the isolation slider assembly is pressed back by the lever 62, thereby making the transmission hole 10 and the transmission channel 21 disconnected.

[0027] like Figures 1 to 5 As shown, in some embodiments of the present invention, the inertial slider assembly includes an inertial slider 4 and a planar tension spring 7 disposed at the distal end of the inertial slider 4, and a limiting slider 42 is provided at the proximal end of the inertial slider 4; the inertial slider 4 and the limiting slider 42 can be integrally disposed, and the limiting slider 42 protrudes from the top surface of the inertial slider 4. The isolation slider assembly includes an isolation slider 5 and a planar compression spring 8 located near the end of the isolation slider 5, and a transmission hole 10 is formed on the isolation slider 5; The lever 62 is divided into a long arm section and a short arm section by the connecting shaft 61. The length of the long arm section is greater than the length of the short arm section. The long arm section and the short arm section respectively abut against the inertial slider assembly and the isolation slider assembly. In the initial state, the inertial slider 4, the isolation slider 5, and the lever 62 all remain relatively stationary; In addition, grooves A 11 and B 12 are respectively provided on the upper cover plate 1 at the positions corresponding to the limiting slider 42 and the isolation slider 5; the limiting slider 42 and the isolation slider 5 are respectively slidably disposed in the grooves A 11 and B 12. The sliding grooves A 11 and B 12 limit the movement trajectory of the limiting slider 42 and the isolating slider 5. That is, the limiting slider 42 and the isolating slider 5 are respectively confined within the sliding grooves A 11 and B 12 to perform linear movement. The sliding grooves A 11 and B 12 respectively guide and constrain the movement of the limiting slider 42 and the isolating slider 5.

[0028] In this MEMS lever self-locking fuse safety and release device, for situations where uncontrollable errors occur in the internal energy storage element due to long-term storage, the parameters of the micro springs (planar tension spring 7, planar compression spring 8) of this invention only need to meet the range values, without the need for precise control, and the manufacturing difficulty is significantly reduced.

[0029] like Figures 1 to 5 As shown, in some embodiments of the present invention, a groove 41 is provided on one side of the inertial slider 4 near the isolation slider 5; The isolating slider 5 has a protrusion 51 on one side near the inertial slider 4; In the initial state, the free end of the long arm of lever 62 falls into the groove 41 and contacts the left wall of the groove 41. The distal end of the short arm of lever 62 is in contact with the proximal end of protrusion 51 in the initial state; specifically, the lower end of the short arm of lever 62 is in contact with the lower end of protrusion 51. Based on this, in the initial state, the inertial slider 4, the isolation slider 5, and the lever 62 of this MEMS lever self-locking fuse safety and release device remain relatively stationary. Furthermore, in the initial state, the distal end of the electrothermal actuator 9 is positioned close to the proximal end of the protrusion 51; that is, the distal end of the electrothermal actuator 9 is positioned close to the lower end of the protrusion 51, and there is a buffer gap between it and the lower end of the protrusion 51. Specifically, the end of the electrothermal actuator 9 has an L-shaped structure, including a connecting arm 91 and a locking head 92. The connecting arm 91 and the locking head 92 are connected in an L-shape, that is, the locking head 92 protrudes from the right end of the connecting arm 91. In the initial state, there is a buffer gap between the locking head 92 and the lower end of the protrusion 51. Since the electrothermal actuator 9 is made of silicon-based material, which is relatively brittle, the existence of this buffer gap serves to protect the electrothermal actuator 9 from drops. In the initial state, there is no connection between the transmission hole 10 and the transmission channel 21.

[0030] like Figures 1 to 5 As shown, in some embodiments of the present invention, the MEMS lever self-locking fuse safety and release device, in its initial state, has one end of the planar tension spring 7 away from the inertial slider 4 connected to the structural layer 3. Specifically, the end of the planar tension spring 7 away from the inertial slider 4 is connected to the upper end of the structural layer 3 inside the frame structure. The planar tension spring 7 can be preloaded with tension. Specifically, the tension is set to be greater than the inertial force on the inertial slider 4 under the predetermined maximum launch overload environment. The purpose is to ensure that the inertial slider 4 can resist the overload force and remain stationary during launch. Specifically, in the MEMS lever self-locking fuse safety and release device, the inertial slider 4 is restricted to the upper end inside the slide groove A 11 in the initial state and the launch state.

[0031] like Figures 1 to 5 As shown, in some embodiments of the present invention, the MEMS lever self-locking fuse safety and release device, in its initial state, has one end of the planar compression spring 8 away from the isolation slider 5 connected to the structural layer 3. Specifically, the end of the planar compression spring 8 away from the isolation slider 5 is connected to the lower end of the structural layer 3 inside the frame structure. The planar compression spring 8 can be preloaded with pressure. The pressure is set to be greater than the inertial force on the isolation slider 5 during transport vibration and bumps, but less than the inertial force on the isolation slider 5 during launch overload. This means that during transport vibration and bumps, the planar compression spring 8 is sufficient to resist the movement of the isolation slider 5; however, under launch overload (i.e. launch state), the inertial force it generates will overcome the spring resistance and drive the isolation slider 5 to move. More specifically, in the initial state, the isolation slider 5 is confined to the upper end inside the slide groove B 12 by the MEMS lever self-locking fuse safety and release device.

[0032] like Figures 5 to 7 As shown, in some embodiments of the present invention, in the launch state, the isolation slider 5 moves along the first direction due to inertia, and the protrusion 51 on the isolation slider 5 pushes the lever 62 to rotate, thereby moving the short arm segment away from the proximal end of the protrusion 51. The transmission port 10 is connected to the transmission channel 21; The distal end of the electrothermal actuator 9 is used to lock the protrusion 51 after the firing state is completed; Specifically, in the launch state, in the first stage, the isolating slider 5 moves downward under the influence of inertia, overcoming the pre-applied pressure (preload) of the planar compression spring 8. At this time, the inertial slider 4, under the pre-applied tension (preload) of the planar tension spring 7, remains stationary even under overload conditions and does not participate in movement. During the downward movement of the isolating slider 5, its protrusion 51 contacts the short arm of the lever 62, causing the lever 62 to rotate and disengage from the movement trajectory of the isolating slider 5. The isolating slider 5 continues to move downward and then contacts the end of the electrothermal actuator 9 (i.e., the upper end of the locking head 92 is close to the lower end of the protrusion 51), forming a constraint on the movement of the isolating slider 5 and preventing it from continuing to move downward.

[0033] In the second stage, after reaching a safe distance, the electrothermal actuator 9 is energized and heats up through a delayed power supply. Its hot arm expands more than its cold arm, causing the end of the electrothermal actuator 9 to deform to the left, disengaging from the trajectory of the isolating slider 5 and releasing its constraint. The isolating slider 5 then moves downwards until it reaches the bottom, opening the transmission channel (i.e., the transmission hole 10 on the isolating slider 5 connects to the transmission channel 21 on the lower cover plate 2). Immediately afterwards, the electrothermal actuator 9 can be de-energized via an external control system. After cooling, the electrothermal actuator 9 returns to its initial shape (initial state), with its end deforming to the right. Since the isolating slider 5 is now in its new position, the resetting end of the electrothermal actuator 9 presses against the upper end of the protrusion 51 of the isolating slider 5 (i.e., the lower end of the locking head 92 presses against the upper end of the protrusion 51), forming a reliable mechanical lock. This achieves the purpose of "the distal end of the electrothermal actuator 9 being used to lock the protrusion 51 after the launch state is completed," preventing accidental resetting and closure of the transmission channel during subsequent flights or missions.

[0034] like Figure 5 , Figure 8 , Figure 9 As shown, in some embodiments of the present invention, in a falling state, the inertial slider 4 and the isolation slider 5 move along the second direction due to inertia; the second direction refers to the length direction of the structural layer 3, and specifically, the first direction refers to the direction from the upper end of the structural layer 3 to the lower end of the structural layer 3. The proximal end of the protrusion 51 abuts against the distal end of the short arm segment; There is no connection between transmission port 10 and transmission channel 21; Specifically, if the safety and release device is accidentally dropped or impacted (i.e., from the initial state to the dropped state), in the first stage, the huge inertial force on the inertial slider 4 and the isolation slider 5 will overcome the corresponding spring resistance and produce displacement, that is, both the inertial slider 4 and the isolation slider 5 will produce downward displacement.

[0035] In the second stage, the isolating slider 5 drives the lever 62 to rotate. However, due to the downward movement of the inertial slider 4, its groove also moves downward, and the long arm of the lever 62 loses its space for movement, preventing the lever 62 from escaping the trajectory of the isolating slider 5. In other words, only when the inertial slider 4 is stationary, and its groove provides sufficient space for the long arm of the lever 62 to move, can the isolating slider 5 drive the lever 62 to move. Due to the lever principle, the inertial slider 4 continues to move and touches the bottom. At this time, the isolating slider 5 has reset (i.e., the isolating slider 5 moves in the opposite direction of the second direction and returns to its initial position). Although the drop and impact overload have large g values, their duration is short. When the overload disappears, the inertial slider 4 resets under the action of the planar tension spring 7. Although the electrothermal actuator 9 is made of silicon-based material, because the displacement of the isolating slider 5 is less than the initial gap between the protrusion of the isolating slider 5 and the end of the electrothermal actuator 9 when the safety and release device is accidentally dropped or impacted, the strength of the electrothermal actuator 9 is not compromised.

[0036] like Figures 1 to 5 As shown, in some embodiments of the present invention, if the MEMS lever-type self-locking fuse safety and release device receives an instruction to cancel the attack, the control system will re-energize the electrothermal actuator 9, causing its end to deform and releasing the mechanical lock on the isolation slider 5. Once the lock is released, the elastic force of the planar compression spring 8, which was originally compressed in the channel open position, is released, pushing the isolation slider 5 to reset and ultimately closing the transmission channel.

[0037] Based on this, the MEMS lever-type self-locking fuze safety and deactivation device, during launch, drives the lever 62 to rotate and disengage from the isolation slider trajectory under overload, and the electrothermal actuator 9 is energized to release the constraint, thus deactivating the safety. During a fall, the inertial slider 4 restricts the displacement of the isolation slider through the lever 62, forcing it to return to a safe position. In other words, the MEMS lever-type self-locking fuze safety and deactivation device provided by this invention couples the lever principle with a spring-mass system, resolving the contradiction between operational safety and launch reliability. This device not only avoids the brittleness defects of silicon-based materials but also possesses high safety and reliability. Furthermore, it has a bidirectional switching capability between a safe state and a ready-to-fire state.

[0038] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

[0039] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0040] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

Claims

1. A MEMS lever-operated self-locking fuse safety and release device, characterized in that, include: Top cover plate (1); The lower cover plate (2) has a transmission channel (21) on it. The structural layer (3) is located between the upper cover plate (1) and the lower cover plate (2). The structural layer (3) is a frame structure. The structural layer (3) is provided with a fuse safety and release device. The fuse safety and release device includes an inertial slider assembly, an isolation slider assembly, a lever pin (6), and an electrothermal actuator (9) located in the structural layer (3). The lever pin (6) is located between the inertial slider assembly and the isolation slider assembly. The lever pin (6) includes a connecting shaft (61) and a lever (62) that can rotate around the connecting shaft (61). The two ends of the lever (62) abut against the inertial slider assembly and the isolation slider assembly, respectively. The isolation slider assembly is provided with a transmission hole (10). The MEMS lever-type self-locking fuse safety and deactivation device has an initial state, a launch state, and a drop state: Between the initial state and the launch state, the isolation slider assembly moves along a first direction to connect the transmission hole (10) with the transmission channel (21); Between the initial state and the falling state, the inertial slider assembly moves along the second direction, and the isolation slider assembly is locked by the lever (62) so that the transmission hole (10) and the transmission channel (21) are not connected.

2. The MEMS lever self-locking fuse safety and release device according to claim 1, characterized in that, The inertial slider assembly includes an inertial slider (4) and a planar tension spring (7) located at the distal end of the inertial slider (4), and a limiting slider (42) is provided at the proximal end of the inertial slider (4). The isolation slider assembly includes an isolation slider (5) and a planar compression spring (8) located near the end of the isolation slider (5), and the transmission hole (10) is opened on the isolation slider (5); The lever (62) is divided into a long arm segment and a short arm segment by the connecting shaft (61), and the long arm segment and the short arm segment respectively abut against the inertial slider assembly and the isolation slider assembly.

3. The MEMS lever self-locking fuse safety and release device according to claim 2, characterized in that, A groove (41) is provided on one side of the inertial slider (4) near the isolation slider (5). The isolating slider (5) has a protrusion (51) on one side near the inertial slider (4).

4. The MEMS lever self-locking fuse safety and release device according to claim 3, characterized in that, In the initial state, the end of the long arm segment falls within the groove (41); The end of the short arm segment is in contact with the proximal end of the protrusion (51) in the initial state; The distal end of the electrothermal actuator (9) is disposed near the proximal end of the protrusion (51); The transmission hole (10) is not connected to the transmission channel (21).

5. The MEMS lever self-locking fuse safety and release device according to claim 4, characterized in that, In the initial state, there is a buffer gap between the distal end of the electrothermal actuator (9) and the proximal end of the protrusion (51).

6. The MEMS lever self-locking fuse safety and release device according to claim 3, characterized in that, In the launch state, the isolation slider (5) moves along the first direction due to inertia, and the protrusion (51) on the isolation slider (5) pushes the lever (62) to rotate, thereby moving the short arm segment away from the protrusion (51) near the end; The transmission hole (10) is connected to the transmission channel (21); The distal end of the electrothermal actuator (9) is used to lock the protrusion (51) after the firing state is completed.

7. A MEMS lever-operated self-locking fuse safety and release device according to claim 3, characterized in that, The fall state has a first stage and a second stage; In the first stage of the falling state, the inertial slider (4) and the isolation slider (5) move along the second direction due to inertia, and the transmission hole (10) and the transmission channel (21) are not connected. In the second stage of the falling state, the inertial slider (4) moves along the second direction, and the isolation slider (5) moves in the opposite direction of the second direction.

8. A MEMS lever-operated self-locking fuse safety and release device according to claim 2, characterized in that, The upper cover plate (1) is provided with a slide groove A (11) and a slide groove B (12) at the positions corresponding to the limiting slider (42) and the isolation slider (5), respectively. The limiting slider (42) and the isolation slider (5) are slidably disposed in the slide groove A (11) and slide groove B (12), respectively.

9. A MEMS lever-operated self-locking fuse safety and release device according to claim 8, characterized in that, In the initial state, the planar compression spring (8) is used to fix the isolation slider (5) in the groove B (12).

10. A MEMS lever-operated self-locking fuse safety and release device according to claim 8, characterized in that, In the initial state, the planar tension spring (7) is used to fix the limiting slider (42) in the groove A (11).

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