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158results about How to "Guaranteed connection" patented technology

Miniature electromagnetic broadband vibration energy harvester based on permanent magnet assay

The invention discloses a miniature electromagnetic broadband vibration energy harvester based on a permanent magnet assay and relates to the technical field of micro-electro-mechanical systems, which comprises an insulating substrate, a planar spiral induction coil, a vibration pick-up structure and a support structure, wherein the insulating substrate, the planar spiral induction coil and the vibration pick-up structure are sequentially fixedly arranged from bottom to top, and the support structure is positioned on the outer sides of the planar spiral induction coil and the vibration pick-up structure and fixedly connected with the insulating substrate. The device can realize the broadband vibration energy harvesting by superposition of various permanent magnets under different vibration states in a circular permanent magnet array which is connected through a spring under the different vibration modes. The permanent magnet array is integrally manufactured by utilizing the micro-structure patterning method; furthermore, as the patterned permanent magnets can have thicker micro-structures, the miniature electromagnetic broadband vibration energy harvester has better energy harvesting and transformation efficiency in comparison with electroplated permanent magnets and is compatible with the IC process and easy to realize the batch processing.
Owner:SHANGHAI JIAO TONG UNIV

Charging and discharging protection circuit of lithium iron phosphate battery for electric automobile

The invention discloses a charging and discharging protection circuit of a lithium iron phosphate battery for an electric automobile. The charging and discharging protection circuit is connected to the positive direct-current output end and the negative direct-current output end of a charger, and is characterized by being provided with an electrically-controlled mechanical switch consisting of a first contactor, a second contactor and a control circuit, wherein the positive and the negative control input ends of the control circuit of the electrically-controlled mechanical switch are connected with the positive and the negative ends of the lithium iron phosphate battery respectively; the normally closed contact of the first contactor and an IGBT1 (Insulated Gate Bipolar Translator 1) constitute a first parallel connection group; the normally closed contact of the second contactor and an IGBT2 constitute a second parallel connection group; reverse fly-wheel diodes are arranged in the IGBT1 and the IGBT2; and the first parallel connection group and the second parallel connection group are connected in series to constitute a combined protection switch. Normal switch-on of a charging and discharging loop is ensured, and arcing caused by switch-off of the normally-closed contacts of the first contactor and the second contactor is avoided. The combined protection switch can be used for separately controlling an overcharging loop and an over-discharging loop, and is particularly suitable for performing charging and discharging protection on the lithium iron phosphate battery of the electric automobile.
Owner:SHENZHEN KELIE TECH

Micro electromagnetic vibration energy harvester based on patterned permanent magnet full integration

The invention discloses a micro electromagnetic vibration energy harvester based on patterned permanent magnet full integration, and belongs to the technical field of micro electromechanical systems. The micro electromagnetic vibration energy harvester comprises an insulating substrate, a plane spiral induction coil, an insulating material coating layer, a vibration pickup structure, a patterned permanent magnet, support structures and lead electrodes, wherein the insulating substrate, the plane spiral induction coil, the insulating material coating layer, the vibration pickup structure and the patterned permanent magnet are sequentially fixed upwards from the bottom; the support structures are fixedly connected with the insulating substrate; and the vibration pickup structure is suspended above the insulating material coating layer. In external vibration, the permanent magnet fixed together with the vibration pickup structure changes a magnetic flux in the induction coil by inertial movement, thereby generating induction voltage. The permanent magnet is integrated and manufactured by utilizing a micro structure patterning method, and moreover, the patterned permanent magnet has a relatively thicker micro structure, so that the patterned permanent magnet has energy acquisition and conversion efficiency which is higher than that of an electroplated permanent magnet, and is compatible to an integrated circuit (IC) process and easy to machine in batches.
Owner:SHANGHAI JIAO TONG UNIV

Overhead line coiling and uncoiling device of charge connecting line

The invention provides an overhead line coiling and uncoiling device of a charge connecting line, and belongs to the field of a charge gun connecting line protection device. The device comprises a charging pile, wherein the charging pile is arranged on the bottom surface of a ceiling of a charging station; the bottom surface of the ceiling of the charging station is provided with connecting rods; the connecting rods are positioned on the two sides of the charging pile; transverse tracks are connected with the ceiling of the charging station by the connecting rods; certain ends of the transverse tracks are provided with a line outlet; the transverse tracks are provided with a line inlet corresponding to the position of the charging pile; a slide block is arranged on the transverse tracks; the charge gun connecting line leads in from the line inlet, bypasses the slide block and gets out from the line outlet; a spring is arranged between the slide block and the end face at one end of the transverse track, so the charge gun connecting line does not trail on the ground, the service life of the charge gun connecting line is prolonged, the charge gun connecting line is not stepped on or crushed by an electric vehicle, and insulating skin is prevented from being damaged to prevent unexpected situations.
Owner:张远镇 +2

Self-locking pushing mechanism of electric connector

The invention relates to a self-locking pushing mechanism of an electric connector, which comprises a supporting frame fixed on a hook body, a guide frame, a pushing cylinder fixedly arranged on the supporting frame, the electric connector sleeved on the guide frame, and a connecting rod connected with the pushing cylinder and the electric connector, wherein the connecting rod consists of a driving shaft, a driving shaft rotating arm and a telescopic rod rotating arm; the driving shaft rotating arm and the telescopic rod rotating arm are fixedly arranged on the driving shaft; the other end of a driving shaft connecting arm is coupled with a piston rod of the pushing cylinder; the back part of the electric connector is connected with a telescopic rod; the other end of the telescopic rod is coupled with the telescopic rod rotating arm; and after the piston rod of the pushing cylinder extends out and the electric connector is normally coupled, a connection line BC of a connection point B of the telescopic rod and the electric connector and the center C of the driving shaft forms an included angle with a connection line BO of the connection point B of the telescopic rod and the electric connector and the connection point O of the telescopic rod and the telescopic rod rotating arm, and the connection line BC is higher than the connection line BO. The self-locking pushing mechanism can be locked by self and has a good using effect.
Owner:CRRC QINGDAO SIFANG ROLLING STOCK RES INST

Method and system for protecting trains against collisions

The invention provides a method and system for protecting trains against collisions. According to the method and system, the mode that a train hook energy absorbing structure, an anti-crawling energy absorbing structure and a train deformation energy absorbing structure act successively is not adopted any more, but the anti-crawling energy absorbing structure acts firstly. The length of an energy absorbing pipe in the system for protecting the train against collisions is not limited by the position of train hooks any more, so that the length of the energy absorbing pipe is significantly increased, energy absorbed by the anti-crawling energy absorbing structure can be significantly improved compared with the prior art, more collision kinetic energy can be dissipated when collisions happen, and the safety of the trains is remarkably improved. According to the anti-crawling energy absorbing structure, the energy absorbing ratio is large, the effective travel is long, the influence of load conditions on deformation is small, and the energy absorbing characteristic under different collision conditions is stable. When the energy absorbing structures are triggered by accident, a telescopic drive structure can drive the energy absorbing pipe to retract back into a train body conveniently in a direct one-key control mode, and the effect that the trains can be normally coupled through the train hook is ensured.
Owner:CENT SOUTH UNIV

Underwater sealing wall penetrating structure

The invention relates to an underwater sealing wall penetrating structure. A flange plate at one end of a wall penetrating sleeve is in sealed connection with an underwater sealing cabin, a sealing plug connected with the inner wall of the wall penetrating sleeve in a sealed abutting manner is contained in the end, and the end is in threaded connection with a sealing screw sleeve. The other end ofthe wall penetrating sleeve is in threaded connection with a pressing screw sleeve. One end of the pressing screw sleeve is inserted into the wall penetrating sleeve and is connected with the inner wall of the wall penetrating sleeve in a sealed abutting manner, the other end of the pressing screw sleeve is located outside the wall penetrating sleeve, a sealing plug is contained in the other endof the pressing screw sleeve, and the other end of the pressing screw sleeve is in threaded connection with a sealing screw sleeve. A pressing wedge is contained in the wall penetrating sleeve and located between the pressing screw sleeve and the sealing plug contained in one end of the wall penetrating sleeve. An underwater photoelectric composite cable sequentially penetrates one sealing screw sleeve, one sealing plug, the pressing screw sleeve and the pressing wedge. The outer surface of the pressing wedge is connected with the inner wall of the wall penetrating sleeve in an abutting manner, and the inner surface of the pressing wedge is of a tooth structure achieving axial fixing with the underwater photoelectric composite cable. The underwater sealing wall penetrating structure does not depend on vulcanization sealing, watertightness inside and outside the cabin is guaranteed in a mechanical sealing manner, and mounting and separating of the photoelectric composite cable and the cabin can be conveniently achieved.
Owner:SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI

Accompany-type teaching auxiliary acquisition laser pen

The invention discloses an accompany-type teaching auxiliary acquisition laser pen. The pen comprises a pen body and a recording seat. An infrared light emitter and a camera are arranged on the upperend of the pen body. The camera is parallelly connected with the infrared light emitter. An operation button is arranged on the pen body. A power supplying contact is arranged on the pen body and is electrically connected with a charging cell. An insertion hole is arranged in the recording seat. The pen body is in insertion cooperation with the recording seat. The operation button is arranged on the upper end of the recording seat. The position where the lower end of the pen body is aligned to the lower end of the recording seat is the first position. The position where the operation button isseparated from the insertion hole is the second position. A recording assembly is arranged in the recording seat. Sound receiving holes are uniformly distributed to the place, near the lower end, onthe circumferential wall of the recording seat. An upper moving contact and lower moving contact are arranged on the inner wall of the insertion hole. The upper moving contact is used for contacting with the power supply contact to conduct the circuit so as to allow the recording assembly to work in the first position. The lower moving contact is used for contacting with the power supply contact to conduct the circuit so as to allow the recording assembly to work in the second position. The laser pen has the function of a laser pen and is capable of acquiring image sound information.
Owner:温州市鹿城区中津先进科技研究院

Adhesive dispensing mechanism and display screen production line

The invention relates to the technical field of display screen production, and discloses an adhesive dispensing mechanism and a display screen production line. The adhesive dispensing mechanism comprises a portal frame, two sets of adhesive dispensing modules and a moving module, the portal frame forms a space allowing a workpiece to penetrate in the Y direction in the X-Z plane, the two sets of adhesive dispensing modules are arranged at two ends of the portal frame in the X direction respectively and used for adhesive dispensing the workpiece, and the moving module is used for driving the adhesive dispensing modules to move in the X direction and the Z direction relative to the portal frame; and each adhesive dispensing module comprises a adhesive dispensing valve, a CCD detection component and a camera, the position of the adhesive dispensing valve is adjustable relative to the portal frame in the Y direction, the CCD detection component is used for detecting the dispensing quality,and the camera is used for shooting the working state of the adhesive dispensing valve. The adhesive dispensing mechanism disclosed by the invention is high in working efficiency, and the working state of the dispensing valves and the adhesive dispensing quality can be observed in real time. According to the display screen production line disclosed by the invention, through the adhesive dispensing mechanism, the display screen production efficiency is high, the dispensing precision is high, and problems in production can be conveniently observed in real time.
Owner:KUNSHAN SAMON AUTOMATION TECH

Heavy cargo transport vehicle and stereoscopic warehouse using same

The invention provides a heavy cargo transport vehicle and a stereoscopic warehouse using the same, and belongs to the field of storage facilities. The heavy cargo transport vehicle comprises a carrier assembly, a hoisting assembly, a major vehicle assembly and a minor vehicle assembly, wherein the hoisting assembly, the major vehicle assembly and the minor vehicle assembly are arranged on the carrier assembly; the carrier assembly comprises a shell and an upper cover, and the hoisting assembly makes contact with the upper end and drives the upper cover to ascend and descend; the major vehicleassembly comprises a major vehicle actuator, major vehicle wheels and a lifting assembly, the major vehicle wheels are arranged at the four corners of two sides of the shell, the major vehicle actuator drives the major vehicle wheels to rotate, and the lifting assembly drives the major vehicle wheels to move up and down relative to the shell; and the minor vehicle assembly comprises a minor vehicle actuator and minor vehicles, the minor vehicles are arranged in the shell and not arranged on the two sides of the major vehicle wheels, the advancing direction of the minor vehicles is perpendicular to that of the major vehicle wheels, and the minor vehicle actuator drives the minor vehicles to rotate. The heavy cargo transport vehicle uses a brand new structure and has high load and high efficiency, the reliability is improved, and the utilization rate of storage space is increased.
Owner:TIANJIN MASTER LOGISTICS EQUIP CO LTD
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