69 results about "Inertial switch" patented technology

Illuminating devices may be added to clothing and accessories worn by persons. Articles to which the illuminating devices may be added include footwear, hair-control articles, belts, suspenders, backpacks, purses, book-bags, vests and the like. The illuminating devices are necessarily compact in nature, consisting primarily of flashing lights and a power-and-control circuit that controls and enables the flashing of the lights. The lights may be flashed sequentially, in-phase, randomly, or in other desirable patterns, and the lights may also fade-on or fade-off. Controls may include an inertial switch, a push-button or touch-switch, and an on-off toggle switch.

A vehicle safety system uses sensors mounted between a seat belt frame and a seat belt spool to detect protraction of seat belt webbing after the seat belt spool has been locked by an inertial switch or the like. The vehicle safety system gathers information from vehicle mounted crash sensors. If the vehicle safety system determines that a crash is taking place, but does not receive an output from the sensor mounted between the seat belt frame and the seat belt spool indicating seat belt webbing is being protracted, the system deploys other safety apparatus based on the assumption that the occupant of a particular seat is not properly restrained by one or more seat belts. For example seat belt use information can be used to vary the level of airbag deployment in a variable deployment airbag. An alternative embodiment detects motion of a linear energy-absorbing mechanism.

The invention discloses a battery pack with an intelligent monitoring function. The battery pack comprises a box body, a box cover, a battery pack, and a voltage sensor, a current sensor, a temperature sensor, a pressure sensor, a camera, a photosensitive sensor, a loudspeaker, a controller and a processor which are arranged in the box body, wherein all the sensors are connected with the controller; and the controller and a memory are connected with the loudspeaker which is used for giving out an alarm; and the memory is connected with an external display screen. The camera is arranged in the battery box, so that the condition of the lithium battery in the battery box can be vividly observed in an overhaul process without opening the battery box, so as to find out whether the problems of bulging, cracking and other potential safety hazards exist in the battery or not in time; the overhaul efficiency is improved due to the matching of the pressure sensor and other sensing parts; the photosensitive sensor is placed in the box body, so that an alarm can be sent out when the box body is damaged so as to cut off the main power lien to guarantee safety; and in addition, the main power line also can be cut off in collision through an acceleration sensor or an inertia switch when the box is not damaged.

A multi-stage inertial switch including: a housing having a first electrical contact; two or more members disposed in the housing, at least one end of each of the two or more members being sequentially movable upon a different level of acceleration of the housing; and a movable member movable within the housing by the sequential movement of the two or more members, the movable member having a second electrical contact capable of engagement with the first electrical contact to one of open or close an electrical circuit between the first and second electrical contacts upon an occurrence of a predetermined magnitude and / or duration acceleration event.

The invention discloses a threshold-adjustable quicksilver microfluid inertia switch based on electrowetting, and relates to switches. A top adjustment electrode and a bottom adjustment electrode are respectively deposited on a glass cover plate and a glass substrate, silicon dioxide layers are deposited on the top adjustment electrode and the bottom adjustment electrode, a microchannel is communicated with a liquid trough through butt joint, the tail end of the microchannel changes gradually and gathers to form a micro valve, the liquid trough is communicated with gas-guide tubes on the two sides of the liquid trough, quicksilver micro-droplets are arranged inside the microchannel, one end of a signal electrode penetrates into the liquid trough, and the signal electrode is fixedly arranged on the silicon dioxide layers. According to the threshold-adjustable quicksilver microfluid inertia switch based on electrowetting, an electrowetting method is adopted, the threshold of quicksilver microfluid inertia switch can be adjusted, a 'solid-liquid' contact form is adopted, the stability of the current characteristic is guaranteed, the effective contact area of a switch contact is enlarged, the on resistance is small, the interface circuit is simple, and the overload capacity of the switch is improved. The threshold-adjustable quicksilver microfluid inertia switch based on electrowetting is suitable for the field such as military weapon systems, civil mechatronics and consumer electronics.

The invention provides a long-contact time micro-electromechanical universal inertia switch and a manufacturing method for the same, and aims to solve the problems of capability of capturing inertial acceleration in a single direction only and short contact time of a movable electrode and a fixed electrode of the conventional micro-electromechanical system (MEMS) inertia switch. Key points are that a middle structural layer of a silicon chip comprises an annular mass frame, an annular external electrode and an anchorage area, which are arranged outwards from an anchorage point taken as the center of a circle. The anchorage area and the anchorage point are bonded with a lower cover plate. Four external springs are arranged crosswise. The two ends of each external spring are fixedly arranged between the anchorage area and the annular external electrode respectively. Four internal springs are arranged crosswise. The two ends of each internal spring are fixedly arranged on the annular mass frame and the anchorage point respectively. The inertia switch and the manufacturing method have the positive effects that inertial acceleration in any direction can be captured; and after threshold acceleration is captured, the contact time of the two electrodes is greatly prolonged.

A multi-stage inertial switch including: a housing having a first electrical contact; two or more members disposed in the housing, at least one end of each of the two or more members being sequentially movable upon a different level of acceleration of the housing; and a movable member movable within the housing by the sequential movement of the two or more members, the movable member having a second electrical contact capable of engagement with the first electrical contact to one of open or close an electrical circuit between the first and second electrical contacts upon an occurrence of a predetermined magnitude and / or duration acceleration event.

The invention provides an electrostatic locking vertical sensitive micromechanical inertial switch which comprises an insulating substrate, array fixation electrodes, a pull-in electrode, a mass block, conjoined serpentine springs, spring fixation bearings and a reverse limit stop structure. The array fixation electrodes are formed by a graph array through layout wiring, is insulated from the pull-in electrode through air gaps, and is located on the insulating substrate. The mass block is connected with four conjoined serpentine springs, forms a suspended movable structure through the spring fixation bearing, and is located above the plane of the fixation electrodes and the pull-in electrode. The reverse limit stop structure is suspended above the mass block. According to the invention, the fixation electrode array is used; through in-plane multi-point layout, the conducting possibility of the fixation electrodes and the mass block is greatly improved; the pull-in electrode and the mass block are under electrostatic attraction, which can arbitrarily prolong contact time and improve contact performance; the reverse limit stop structure can effectively suppresses the large deformation of the mass block in a non-sensitive direction, which improves the stability of the device.

The invention provides a threshold-adjustable MEMS inertial switch testing system, which comprises a signal input system containing an impact sliding block, an impact rod and a buffering device. The impact rod provides a monotonically increasing speed to convert the kinetic energy into the elastic energy of the air spring in the buffering device. The buffering device provides the first monotonically increasing and then monotonically decreasing acceleration signal input. The signal output system comprises a test circuit, a galvanometer and an oscilloscope. The test circuit includes an MEMS inertial switch. The test circuit uses the self-locking function of inertial switch to realize the signal output. The galvanometer and the oscilloscope are designed to measure the output signal of the test circuit. The system of the invention makes up the gap of the MEMS inertial switch testing system at home.

An inertia switch includes a stack of a base plate and a base cover. The base plate provided inside a liquid storage chamber and a sensing chamber communicating with a liquid storage chamber. The liquid storage chamber contains working fluid, and the sensing chamber equipped with a sensing electrode extending to and connected to an external equipment that tend to interact with the inertia switch. The electricity-conductive liquid is utilized as a medium for inertia detection. Furthermore, by the width, depth and angle of the flow channel design, when the liquid material flows into the sensing chamber through the channel after a time delay, a sensing signal is obtained by the sensing electrodes through a change of a resistance value or a capacitance value to actuate the switch. The inertia switch has a simple structure and is low cost.

A spring contact, an inertia switch, and a method of manufacturing an inertia switch are provided. The spring contact includes a conductive body portion having an outer edge and an inner edge partially surrounding an open area, a split in the conductive body portion, the split extending between the outer edge and the inner edge, and a conductive contact finger extending from the inner edge into the open area. The inertia switch includes a shell; a mass movably positioned within the shell; the spring contact positioned within the mass; a biasing member positioned between the spring contact and the header; and a conductive member extending through the header. The biasing member provides a bias between the spring contact within the mass and the conductive member. The method includes at least partially closing the split in the spring contact during insertion of the spring contact within the mass.

The invention discloses a using method of an intelligent automatic household door. The intelligent automatic household door comprises a movable door, a door frame, a signal emitting device, a signal receiving device and an anti-clamping device, wherein the movable door is connected with the door frame; the signal emitting device is mounted on the movable door; the signal receiving device and the anti-clamping device are mounted on the door frame; the anti-clamping device comprises an anti-clamping electromagnetic bolt, a positioning electromagnetic bolt and a housing; the anti-clamping electromagnetic bolt comprises an anti-clamping bolt, an anti-clamping spring and an anti-clamping electromagnet; the positioning electromagnetic bolt comprises a bolt sleeve, a locking bolt, a positioning spring and a positioning electromagnet; the locking bolt is opposite to the positioning hole of the anti-clamping bolt; when the movable door is quickly closed, the signal is transmitted to the signal emitting device through an inertia switch, the signal emitting device is used for transmitting the signal to the signal receiving device, the signal receiving device controls the anti-clamping bolt to extend out to jack the movable door; and meanwhile, mutual repulsive force of electromagnetic force of the anti-clamping electromagnet and magnetic force for fixing a magnet is utilized to prevent the movable door from being closed, so that the movable door is prevented from injuring children by clamping.

In one embodiment, an inertial switch of the invention includes a MEMS device manufactured using a layered wafer. The MEMS device has a movable electrode supported on a substrate layer of the wafer and a stationary electrode attached to that substrate layer. The movable electrode is adapted to move with respect to the substrate layer in response to an inertial force such that, when the inertial force per unit mass reaches or exceeds a contact threshold value, the movable electrode is brought into contact with the stationary electrode, thereby changing the state of the inertial switch from open to closed. In one embodiment, the MEMS device is a substantially planar device, designed such that, when the inertial force is parallel to the device plane, the displacement amplitude of the movable electrode from an initial position is substantially the same for all force directions. Advantageously, inertial switches of the invention can be designed to have a relatively small size, e.g., less than one millimeter, and be relatively inexpensive. Due to the small size and low cost, several inertial switches of the invention may be incorporated into a corresponding switch circuit, thereby providing protection against mechanical failure and / or malfunction of any individual inertial switch in that circuit.

The invention discloses a cantilever type inertia switch. The cantilever type inertia switch comprises a hollow cylindrical shell, an insulating base, an electrode stem and a spherical contact, and is characterized in that the insulating base is fixed at one end of an inner cavity of the cylindrical shell, the middle part of the insulating base is provided with a through hole, one end of the electrode stem is embedded into the through hole and fixedly connected with the insulating base, the other end of the electrode stem extends outward along the axial direction thereof, passes through the through hole and is suspended at the middle part of the inner cavity of the cylindrical shell, and the electrode stem is fixedly connected with the spherical contact. The inertia switch disclosed by the invention can overcome resistance of the electrode stem under an overload action in any directions except for the axial direction so as to carry out deflection movements until being contacted with the cylindrical shell, the inertia switch is closed, and an ignition control circuit is connected. The cantilever type inertia switch has a universal closing function, thereby solving a key technology for reliably triggering a hard target against fuse under a large striking angle condition, and enabling the fuse to act reliably under various missile and target intersection conditions.

The invention discloses a locking type inertia switch, and belongs to the technical field of inertia switches. With the corresponding arrangement of a movable electrode component, a static electrode component and a locking part, the separation of the movable electrode from the static electrode when the movable electrode does not work and the stable and reliable matching of the movable electrode and the static electrode when the movable electrode works can be effectively realized, and through the corresponding arrangement of the locking part, the situation that the moving electrode part can belocked at the working position by the locking part after the moving electrode is matched with the static electrode, can be effectively guaranteed, and the situation that the moving electrode part resets caused by the overload reduction or overload disappearance, is avoided. The locking type inertia switch is simple in structure, good in working accuracy and high in reliability, is simple and convenient to assemble, can effectively avoid the unstable matching of the moving electrode and the static electrode, and realizes the reliable locking of the moving electrode and the static electrode after the moving electrode and the static electrode are matched. Moreover, the inertia switch is many in number of cycles and long in service life, enables the service life to be reduced effectively, promotes the application of the inertia switch, and has the better practical value and popularization value.

The invention discloses a mechanical vehicle active suspension device, which overcomes the defects that a device adopting an electronic technology has a control system costing 3,000 dollars and the maintenance cost is high in the prior art. The device is characterized in that: a diaphragm (C) is arranged between a reference chamber (A) and an air spring auxiliary chamber (B) with an inertia switch (5) through a pipeline; and the reference chamber (A), the air spring auxiliary chamber (B) and an air spring main chamber (D) are connected through a pipeline. The mechanical vehicle active suspension device has the advantages that: the diaphragm (C) takes pressure difference of the two chambers as a control signal and driving power to automatically adjust the suspension rigidity in a mechanical mode; the inertia switch (5) can instantaneously change the suspension rigidity, cut off a control switch and solve the contradiction of operability and comfortableness; a hole on a ball (16) realizes the cut-off function in any direction; the pipeline connection is skillful, complicated and unique, so that the functions are realized and are not interfered mutually; a complicated process does not exist, the device is easy to promote and apply, and great reformation of the vehicle suspension device is provided; and the device is used for vehicle suspension.

The invention provides a micro inertial switch with a Z-shaped beam structure. The micro inertial switch has a micro inertial switch chip which is processed according to MEMS technology and has a low g-value. The micro inertial switch is mainly composed of a glass cover plate, a mass block and spring beam silicon structure, a glass substrate, etc. The spring beam structure is a symmetrical Z-shaped beam. In operation, on the condition an overload function exists in a sensitive direction, the Z-shaped beam deforms elastically, and the mass block moves to contact bump points in the groove of the glass substrate. On the condition that overload reaches a certain threshold, a metal electrode on the mass block contacts with two random adjacent contact pump points in the groove of the substrate, so that the micro inertial switch is on. The micro inertial switch with the Z-shaped beam structure has advantages of high transverse overload resistance, high productivity, high reliability, etc. The micro inertial switch with the Z-shaped beam structure is suitable for the fields such as automobile and industrial production safety control and aeronautics and astronautics.

The invention provides an MEMS inertial switch with an adjustable threshold value, wherein the switch comprises an induction upper electrode, an induction lower electrode and an electromagnetic attraction device; the induction upper electrode is configured to move towards an induction lower electrode under the action of inertia, and forms a pulse induction signal when the induction upper electrodeis in contact with the induction lower electrode; the induction lower electrode is configured to be fixedly arranged with a shell, and when the induction lower electrode is in contact with the induction upper electrode, a pulse induction signal is formed; and the electromagnetic attraction device is configured to generate a magnetic field after current is introduced, the magnetic field generatesacting force towards the induction lower electrode on the induction upper electrode, and the intensity and direction of the magnetic field change along with the change of the introduced current.

The invention discloses a universal inertia switch. The universal inertia switch comprises a shell assembly, an electrode structure and an insulating elastomer, the shell assembly is of a hollow structure; the electrode structure is mounted in the shell assembly; the insulating elastomer is filled between the shell assembly and the electrode structure; the electrode structure is an electrode for the universal inertia switch, is used for sensing overload signals with different directions greater than a threshold value, and is in contact with the other electrode on the shell assembly to close the switch; and the universal inertia switch can sense a positive axial overload signal, a negative axial overload signal, a radial overload signal and overload signals in other synthesis directions, and has a high adaptability.

The invention discloses an MEMS inertial switch based on a three-section long inclined beam bistable structure. The switch comprises: a switch housing, a bistable mechanism and a switch auxiliary mechanism. The switch auxiliary mechanism and the bistable mechanism are sequentially arranged inside the switch housing in the acceleration direction, the switch auxiliary mechanism includes a spring body and a first mass, the bistable mechanism comprises a three-section long inclined beam structure and a second mass, a switch contact is provided in the switch housing at a position opposite the second mass block, the first mass is disposed opposite the second mass, the mass of the first mass is larger than the mass of the second mass. When the MEMS inertial switch is subjected to the set acceleration, the first mass collides with the second mass under the action of the inertia, so that the second mass moves in the acceleration direction. The bistable mechanism presses the switch contact fromone steady state to the other steady state, and turns on the circuit. The MEMS inertial switch provided by the invention has the advantages of high sensitivity, strong electromagnetic interference resistance and strong mechanical vibration resistance.

In one embodiment, an inertial switch of the invention includes a MEMS device manufactured using a layered wafer. The MEMS device has a movable electrode supported on a substrate layer of the wafer and a stationary electrode attached to that substrate layer. The movable electrode is adapted to move with respect to the substrate layer in response to an inertial force such that, when the inertial force per unit mass reaches or exceeds a contact threshold value, the movable electrode is brought into contact with the stationary electrode, thereby changing the state of the inertial switch from open to closed. In one embodiment, the MEMS device is a substantially planar device, designed such that, when the inertial force is parallel to the device plane, the displacement amplitude of the movable electrode from an initial position is substantially the same for all force directions. Advantageously, inertial switches of the invention can be designed to have a relatively small size, e.g., less than one millimeter, and be relatively inexpensive. Due to the small size and low cost, several inertial switches of the invention may be incorporated into a corresponding switch circuit, thereby providing protection against mechanical failure and / or malfunction of any individual inertial switch in that circuit.

The invention discloses a locking type inertia switch which comprises a magnet (2), a screw (6) a spring mass block (1), a conductive column (3), a shell (4) and a cover plate (5), wherein one end ofthe spring mass block (1) is fixedly connected with the shell (4), the other end of the spring mass block (1) keeps a certain distance from the shell (4), one end of the conductive column (3) is a cylinder and is fixedly arranged in a conductive column hole in the cover plate (5) in an interference fit mode (5), and the other end of the conductive column (3) is a rectangular sheet, the cover plate(5) is fixedly installed with the shell (4) through the screw (6) to realize locking in place. According to the locking type inertia switch, when the spring mass block senses overload, the spring mass block overcomes the force resistance of the spring under the action of inertia force and the suction force of the spring mass block and the magnet until the spring mass block is in contact with theconductive column, so that the on and off of the circuit are realized, and the in-place locking function is achieved.

The invention discloses an inertia cylinder constraint type switch, and belongs to the technical field of inertia switches. The inertia cylinder constraint type switch is characterized in that a firstinertia cylinder assembly, a movable electrode assembly, a static electrode assembly and a first locking piece are correspondingly arranged in a switch body, and the effective locking of the switch when the switch does not work is effectively realized by utilizing the corresponding arrangement of the first inertia cylinder assembly and the first locking piece; by utilizing the corresponding arrangement of a locking spring in the moving electrode assembly, the locking spring is still in a compressed state after a moving electrode is matched with a static electrode, so that the reliable matching between the moving electrode and the static electrode is realized. The inertia cylinder constraint type switch is simple in structure, is simple and convenient to set, can effectively realize the accurate locking of the inertia switch when the inertia switch does not work and the reliable locking after matching, avoids the accidental triggering of the inertia switch, guarantees the reliability of the inertia switch during storage, transportation and work, improves the work quality of the inertia switch, promotes the application and development of the inertia switch, and has better application prospects and popularization value.

The invention discloses a safety circuit for a test type electric vehicle. The safety circuit comprises a power battery, a driving motor, a motor controller, a control system master switch, a battery management system, a drive system master switch, a braking reliability device, a braking over-travel switch, an inertia switch, an emergency stop switch, a high-voltage emergency cut-off device, a low-voltage power supply and an insulated monitoring device, wherein a positive insulated relay and a negative insulated relay are arranged in the power battery; the positive pole of the low-voltage power supply is sequentially connected with the control system master switch, the low-voltage end of the high-voltage emergency cut-off device, the drive system master switch, the braking reliability device, the braking over-travel switch, the inertia switch, the emergency stop switch and the insulated monitoring device in series and then is respectively connected with the positive insulated relay and the negative insulated relay. According to the safety circuit disclosed by the invention, output of the power battery can be cut off when any related abnormal condition occurs, the motor is driven to have emergency stop, and the aim of protecting the safety of drivers, passengers and pedestrians is achieved.

A system releases seat belts on school buses electronically via driver command or automatically by an inertia switch and electronic timer that then activate solenoids at each seat. This system operates on 12V direct current furnished by the load side of the bus's ignition switch. The system also has a level sensor that prohibits the system from energizing the solenoids when a bus equipped with the system does not have an upright position. The system provides a switch under each seat that notifies the driver when a child occupies it or a light at the dashboard. A second light flashes to notify the driver when the clip engages a buckle of each seat on a bus. The system allows for normal daily usage of seat belts and simultaneously releases the seat belts in an emergency.

The invention discloses a redundant flexible contact point contact inertia switch. The switch comprises a metal shell; an insulating body, two inertia pins, two inertia springs, a lead PCB, a conductive PCB and an insulating PCB are arranged in the metal shell; the lead PCB is positioned at the top end of the metal shell; the conductive PCB and the insulating PCB are both located at the bottom endof the metal shell, and the insulating PCB is located above the conductive PCB; the insulating body is distributed on the side surface of the metal shell to form an insulating body inner hole and ispositioned between the lead PCB and the insulating PCB; and the two inertia springs are respectively sleeved on the two inertia pins to form two whole bodies, and then the two whole bodies are arranged in the insulating body inner hole. Double sets of inertia pin redundancy design are adopted, so that the action reliability of the inertia switch under a launching or collision condition is greatlyimproved; the conductive PCB is provided with copper-clad surfaces and flexible electrodes corresponding to the vertical positions of the inertia pins; with the flexible electrodes designed, the switching-on time of the switch can be prolonged, and therefore, the subsequent recognition of a switching-on signal by an electronic control part can be facilitated.

The invention discloses a usage method of an intelligent household door. The intelligent household door comprises a movable door, a door frame, a signal emitting device, a signal receiving device and an anti-clamping device, wherein the movable door is connected with the door frame through a hinge; the signal emitting device is mounted on the movable door; the signal receiving device and the anti-clamping device are mounted on the door frame; the anti-clamping device comprises an anti-clamping electromagnetic plug, a positioning electromagnetic plug and a housing; the anti-clamping electromagnetic plug comprises an anti-clamping plug, an anti-clamping spring and an anti-clamping electromagnet; a positioning hole is formed in the anti-clamping plug; the positioning electromagnetic plug comprises a plug sleeve, a lock plug, a positioning spring and a positioning electromagnet; the lock plug is located on the opposite side of the positioning hole of the anti-clamping plug; and the signal receiving device comprises a signal receiver, a time relay and a charger. When the movable door is rapidly closed after being blown by strong wind, an inertia switch transmits a signal to the signal emitting device; then, the signal emitting device transmits the signal to the signal receiving device; then, the signal receiving device controls the anti-clamping plug of the anti-clamping device not to extend out; and the movable door is propped, so that the movable door can be prevented from clamping a child.

A spring contact, an inertia switch, and a method of manufacturing an inertia switch are provided. The spring contact includes a conductive body portion having an outer edge and an inner edge partially surrounding an open area, a split in the conductive body portion, the split extending between the outer edge and the inner edge, and a conductive contact finger extending from the inner edge into the open area. The inertia switch includes a shell; a mass movably positioned within the shell; the spring contact positioned within the mass; a biasing member positioned between the spring contact and the header; and a conductive member extending through the header. The biasing member provides a bias between the spring contact within the mass and the conductive member. The method includes at least partially closing the split in the spring contact during insertion of the spring contact within the mass.

A micro-electromechanical system (MEMS) switch comprises a trench formed in a substrate. A free moving conductive mass may be formed within the cavity. When the switch is moved or otherwise acted upon my an inertial force to conductive mass makes contact with a pair of electrodes partially covering the trench thus turning the switch on.

A dynamic arresting mechanism for preventing injury from the torqueing of a rotating tool body. The mechanism including an inertia switch to automatically detect the rotation of the tool body and selectively initiate a dynamic arresting mechanism sequence configured to arrest the motor. The mechanism further including a first relay in communication with the inertia switch, an arresting mechanism configured to brake the rotation of the motor, and a delay mechanism configured to cut off power to the arresting mechanism and motor after a predetermined amount of time has elapsed. The mechanism is reset upon release of the trigger used to operate the rotating tool.