56results about How to "Reliable contact" patented technology

The utility model discloses a miniaturized high moment has brush motor, this motor aims at solving the inductance element and carbon brush assembly and terminal of existing motor inside adopt direct welding mode, cannot keep reliable contact in the problem of vibration environment. The motor includes the shell, the stator subassembly of fixed mounting in the shell inside, the rotor subassembly of rotation installation in the shell inside and with the terminal subassembly of rotor subassembly electricity is connected, and the terminal subassembly includes the middle plate, installs the inductance in the middle plate, carbon brush assembly and conducting terminal, and one end of inductance is fixed after welding with the conducting terminal riveting, and the other end of inductance is fixed after welding with carbon brush assembly riveting. The utility model passes through independent riveting welding inductance both ends, realizes inductance and brush arm, inductance and the high strength mechanical locking and conducting connection of conducting terminal, and the anti -vibration performance is superior to direct welding mode, can keep reliable contact in the vibration environment.

The invention relates to the technical field of measurement, in particular to a wheel type distance measuring device for road and bridge segmented construction and a distance measuring method thereof.The wheel type distance measuring device comprises a wheel, a handle and a counter, the counter is fixed to the handle, and the wheel is connected with the handle through an elastic assembly; the elastic assembly can adaptively adjust the distance between the wheel and the counter under the condition of an uneven road surface, the wheel and the counter are matched through the transmission assembly, and the transmission assembly can drive the counter to operate in the process that the wheel rotates and the elastic assembly stretches out and draws back; the brush is matched with the cleaning assembly, when the wheel rotates, the cleaning assembly drives the brush to brush the outer wall of the wheel in a reciprocating mode, the device is compact in overall structure and convenient and fast to operate, and the elastic buffering function, the stable transmission function and the automatic cleaning function are organically integrated; and the environmental adaptability and the working reliability of the wheel type distance measuring device in a road and bridge segmented construction scene are improved.

The application provides a wire SI performance test board for rapid docking, comprising a test mainboard, a plurality of test output interfaces are arranged on the front surface of the test mainboard, a first SMA interface is arranged on the upper side of the test output interface, a second SMA interface is arranged on the left side of the test output interface, a test input interface is arranged on the back surface of the test mainboard, the test input interface is provided with a first magnetic attraction assembly, the test mainboard further comprises a test input connector, the test input connector is provided with a second magnetic attraction assembly, one end of the test input connector is rapidly docked with the test input interface through the second magnetic attraction assembly and the first magnetic attraction assembly, and the other end of the test input connector is provided with a wire docking interface. The application can significantly improve the wire connection / detaching efficiency, is simple and reliable to operate, reduces interface abrasion, and has good adaptability.

The present application relates to the technical field of connector, especially to an electric connector assembly. The electric connector assembly comprises a shell, a PCB adapter plate is arranged in the shell, two or more rows of non-ground cables are electrically and fixedly connected to the PCB adapter plate, two or more rows of connecting pads are arranged on the front and back surfaces of the PCB adapter plate respectively, each row of connecting pads comprises a row of signal pads and ground pads, the core wire of the non-ground cable is electrically and fixedly connected to the signal pad on the front surface, the conductive outer sheath is electrically connected to the ground pad on the front surface, the signal pad and the ground pad on the back surface are used for being electrically connected to the corresponding terminals of a PCB female plate or being electrically connected to the corresponding terminals of an adapter socket and then being electrically connected to the PCB female plate, the PCB adapter plate is internally arranged with a conductive circuit to correspondingly connect the connecting pads on the front and back surfaces of the PCB adapter plate, and the electric connector assembly further comprises a load bottom support which is locked and connected to the shell. The electric connector assembly can realize multi-row high-density wiring and greatly improve the performance of the connector.

The utility model belongs to the field of circuit breakers, and particularly relates to an isolation circuit breaker which comprises a mechanism frame, a circuit breaker unit and an isolation switch unit, the isolation switch unit comprises an isolation shaft, an isolation knife and a static contact, the isolation knife is in linkage fit with the isolation shaft, the isolation knife acts along with the isolation shaft, and connection or disconnection of the isolation knife and the static contact is achieved. Two cooling fins are arranged at the positions, corresponding to the two sides of the isolation knife, of the static contact, one end of each cooling fin is provided with a contact part extending in the direction of the isolation knife, and when the isolation knife is connected with the static contact, the contact parts of the two cooling fins are attached to the two sides of the isolation knife respectively; the two cooling fins are additionally arranged on the static contact, when the isolation knife is connected with the static contact, the contact portions of the two cooling fins are attached to the two sides of the isolation knife, the cooling fins can conduct heat of the isolation knife, heat dissipation of the isolation knife is facilitated, and therefore temperature rise can be reduced.

This utility model discloses an improved irregular-shaped test socket, including an irregular-shaped pin plate. The pin plate has multiple sets of mounting holes, each set including multiple parallel pin slots, with the pin tip slot higher than the pin tail slot. A circular limiting groove penetrating multiple pin slots is provided in the center of each mounting hole, located above a hollowed-out portion. A silicone circular rod is installed within the circular limiting groove. The arc-shaped portion of the irregular-shaped pin is installed below the silicone circular rod, with the pin tip located in the pin tip slot and the pin tail slot within the pin tail slot. A silicone strip groove is provided above the circular limiting groove and the pin tail slot, containing a silicone strip used to press against the silicone circular rod and pin tip. The silicone strip is made of a softer material than the silicone circular rod. This utility model increases the rigidity of the rotating shaft, stabilizing the rotation of the irregular-shaped pin, preventing sliding friction, improving the lifespan of the circuit board, increasing the interference contact amount, and ensuring reliable contact.

The utility model relates to the technical field of precision optical devices, and discloses a piezoelectric optical adjusting frame which comprises a fixed frame, a movable frame, an elastic connecting assembly and two piezoelectric drivers. A base is arranged in a shell of the piezoelectric actuator. And piezoelectric ceramics are arranged on the base. And a first gasket is arranged on the piezoelectric ceramic. A first ball abuts against the upper portion of the first gasket. A flexible hinge abuts against the upper portion of the first ball. And a push rod is arranged above the flexible hinge. A second ball abuts against the upper portion of the push rod. The second ball abuts against the movable frame. The shell penetrates through the fixing frame and is fixed to the fixing frame. The second ball pushes the movable frame to be close to or away from the fixed frame under the action of the piezoelectric ceramics. The two piezoelectric actuators are adopted to push the moving frame to achieve two-dimensional large-angle high-precision deflection of theta X and theta Y, the overall structure is simple and compact, and operation is reliable. The piezoelectric actuator is linearly driven by piezoelectric ceramics, and has the characteristics of large output, large load, high response speed and high resolution.

A busbar electric connecting wire clamp comprises a wire clamp body and clamping plates, the clamping plates are fixedly connected to the lower portions of the two sides of the wire clamp body through first bolt pairs, a groove is formed in the lower end face of the wire clamp body in the line direction, an elastic contact piece is fixed in the groove, and the lower end face of the elastic contact piece protrudes out of the groove; the wire clamp body is arranged above the busbar, the wire clamp body is clamped and fixed on the top of the busbar through the clamping plate, and the lower end face of the elastic contact piece abuts against the top of the busbar.

The invention relates to the technical field of photovoltaic supports, in particular to a sloping roof photovoltaic support and a construction method thereof, and the photovoltaic support comprises a plurality of back pull assemblies, a plurality of ground beam assemblies and a plurality of photovoltaic mounting base assemblies. The back pull assembly comprises a rear wall inclined strut, a rear wall transverse strut and a back pull, one end of the rear wall inclined strut is arranged on the rear wall of the house, the other end of the rear wall inclined strut is arranged on the back pull, one end of the rear wall transverse strut is arranged on the rear wall of the house, and the other end of the rear wall transverse strut is arranged on the back pull; the ground beam assembly comprises a front wall inclined strut, a front wall transverse strut and a ground beam, one end of the front wall inclined strut is arranged on the front wall of the house, the other end of the front wall inclined strut is arranged on the ground beam, and one end of the front wall transverse strut is arranged on the front wall of the house. After being installed, the support is not connected with the roof, and an original waterproof layer or waterproof tiles of the roof are prevented from being damaged; by arranging the positioning assembly, positioning installation of the back pull and the ground beam is conveniently achieved, and the construction efficiency is improved.

The utility model discloses a sliding plate support base wheel set which comprises a base and a support, the base and the support are respectively provided with a containing cavity, a spring is arranged between the containing cavity of the base and the containing cavity of the support, a taper groove A assembled with the spring is formed in the containing cavity of the base, a taper groove B assembled with the spring is formed in the containing cavity of the support, and a taper tangent plane A is arranged at the end, making contact with the taper groove A, of the spring. The end, making contact with the taper groove B, of the spring is provided with a taper tangent plane B. The spring is tightly assembled in the taper groove A of the base through the taper tangent plane A. The spring is tightly assembled in the taper groove B of the support through the taper tangent plane B. Through the design, the spring is tightly connected with the base and the support, when the spring is used for a long time, the taper grooves of the support and the base become wider under friction and extrusion of the spring, connection between the spring and the taper grooves is more compact under the axial pressure of the spring, the action is more accurate in the using process, operation is quiet, and the service life of the spring is prolonged. The sliding plate support base wheel set is particularly suitable for sliding plates, land impact plates, sliding plate frames and other related products.

This invention relates to a residual current module for a miniature residual current circuit breaker, comprising a handle, a latch, a trip latch, a torsion spring, a contact frame rotatably disposed within a housing, a spring disposed between the contact frame and the housing, a neutral (N) linear contact that is linked to the contact frame, and a residual current tripping assembly disposed within the housing and cooperating with the trip latch. The handle is connected to the latch via a connecting rod, and one end of the latch is connected to the contact frame via a U-shaped connecting rod. The residual current tripping assembly includes an electromagnetic trip unit, a linkage rod slidably disposed within the housing and linked to the electromagnetic trip unit, and a push rod rotatably disposed within the housing and linked to the linkage rod. The push rod has a driving plane that abuts against one end of the trip latch. The driving plane moves with the push rod, causing the trip latch to move and unlocking the latch and the latch. This invention has the advantages of simple structure, stable and reliable performance, fast opening and closing speed, flexible operation, and sensitive tripping action.

The invention relates to a frame interface for an electric bicycle, comprising a frame element with a first fastening region and a second fastening region, and comprising a fastening element, wherein the first fastening region is provided for the bearing-like fastening of a drive unit on the frame element, wherein the fastening element is fastenable on the second fastening region, wherein the second fastening region has a first clamping surface and the fastening element has a second clamping surface, which are provided for jointly encircling at least one partial region of the drive unit in a ring shape, in order to fasten the drive unit on the second fastening region by means of a clamping force.

This invention discloses a transformer testing device, whose switching mechanism includes: three busbar assemblies for electrical connection to the three-phase bushing terminals of the transformer; two sliding contact assemblies, each comprising multiple slidingly engaged slider contacts spaced apart, with each busbar assembly connected and disconnected via the sliding contact assemblies; and a pushing device for driving the slider contacts of the sliding contact assemblies to move, thereby electrically connecting or disconnecting the slider contacts. Operators can quickly connect and disconnect the transformer terminals by controlling the pushing device. The device is simple in structure and easy to operate. Furthermore, when the switching mechanism is in the closed state, the contact is achieved through the contact of the slider contacts. Compared to a disconnector, the contact between the slider contacts is surface contact, which is more reliable, has a larger contact area, and eliminates the shearing force experienced during disconnection and opening of a disconnector, thus solving the problem of contact surface wear.

The utility model provides a kind of rotating equipment turning gear, it is related to turning tool technical field, including handle, fixed jaw piece and movable jaw piece, the fixed jaw piece is connected in the upper end of handle, the movable jaw piece is hinged in the rear side of fixed jaw piece, and worm wheel is connected on the hinged shaft of movable jaw piece, first shaft seat is equipped on the fixed jaw piece in the position below worm wheel, and the inside of first shaft seat is rotatably equipped with the worm that is compatible with worm wheel;The lower end of handle is equipped with rotating unit, and rotating unit is linked with worm and rotates;The utility model uses the clamping mode of fixed jaw piece cooperation movable jaw piece, the bolt of one coupling on the lock nut bolt on movable jaw piece is clamped, the end of fixed jaw piece is inserted into the bolt of another angle on coupling in clamping groove, and turning handle can be carried out turning, because it is supported by coupling bolt, it will not harm the body of coupling, and two fulcrum contact is more reliable, it is not easy to loosen when operating, more safe.

The utility model relates to the technical field of tungsten rod production, and particularly discloses a tungsten rod grinding device which comprises a base, and a linear guide rail is installed on the surface of the base. According to the linear guide rail, a lead screw is rotationally installed in the linear guide rail, limiting rods are symmetrically installed in the linear guide rail, connecting blocks are installed on the surfaces of the limiting rods and the lead screw in a sleeving mode, a handle is installed on the surface of the linear guide rail, a first connecting piece is connected to the surface of each connecting block, and the linear guide rail is installed at the top of the first connecting piece. According to the tungsten rod grinding device, the linear guide rail and the first connecting piece are arranged, the connecting block can be driven to move by rotating the handle through cooperation of the lead screw, the connecting block and the linear guide rail, compared with linear cutting, the position of a tungsten rod can be adjusted more quickly, continuous grinding machining is achieved, and the production angle and flatness of the tungsten rod are guaranteed; therefore, reliable contact between the tungsten rod and the workpiece during welding can be guaranteed, arc discharge is avoided, and machining time is greatly shortened.

This utility model relates to the field of FPC connector technology, specifically to a connection structure for connecting FPC connectors. It includes a connection end, with an FPC flexible plate connected to its right side. A mating mechanism connects the connection end and the FPC flexible plate, extending into the interior of the connection end. A protective mechanism is slidably connected to the outer wall of the connection end, also extending into the interior of the FPC flexible plate. This utility model achieves the connection and fixation between the connection end and the FPC flexible plate through the mutual cooperation of the internal parts of the mating mechanism. It also facilitates the compression of the contact between the female and female pins, making the contact more reliable. Furthermore, the mutual cooperation of the internal parts of the protective mechanism provides dust protection to the top of the connection point between the connection end and the FPC flexible plate, further enhancing the connection's strength.

This utility model belongs to the field of micro motors, specifically relating to a flat brush, including a brush plate and two elastic arms. Each elastic arm has a connecting part at one end that is horizontally connected to the brush plate. The connecting part extends upward to form a supporting part, and the supporting part extends downward to form a contact part. Multiple brush heads are arranged at intervals on the contact part. The multiple brush heads are arc-shaped, and silver-palladium contact layers are respectively provided on the arc-shaped convex surfaces of the multiple brush heads. The elastic arms of this flat brush are formed by multiple bending to form the connecting part, supporting part, and contact part. The multiple brush heads adopt an arc structure design, which helps to improve the rigidity and elasticity of the elastic arms, avoids deformation due to fatigue accumulation, and ensures more reliable contact between the flat brush and the commutator surface. The brush heads contact the flexible circuit board through the silver-palladium contact layers, which can improve the hardness and wear resistance of the contact surface, effectively reduce the increase in contact resistance caused by wear, and help improve the working reliability of the micro motor and extend its service life.

The utility model provides a kind of pipeline temperature sensing tool and the air conditioner comprising it, it is related to air conditioning technical field, solve the technical problem that temperature sensing element dismounting is complex, material demand is much, cost is high, sampling is lost true, the pipeline temperature sensing tool, including handle, clamping part, temperature sensing element;Handle includes first arm and second arm, first arm and second arm middle part are hinged to form scissor type structure;Clamping part is set on first arm and second arm, to be measured pipeline is clamped from two sides respectively;Temperature sensing element is set on part or all clamping part, to carry out pipeline temperature acquisition.The utility model is used for pipeline temperature measurement, with the characteristics of novel sampling mode, strong structure universality, scientific and reasonable wiring mode, convenient and efficient operation, cost saving of repeated use.

A contact system includes a contact support and a moving contact. The moving contact has moving contacts at both ends that mate with stationary contacts. The contact support has two raised mounting protrusions on the side away from the stationary contacts, and a clearance notch between the two mounting protrusions. Each of the two mounting protrusions of the contact support has at least one contact spring, and the contact springs on the two mounting protrusions are respectively connected to the two ends of the moving contact where the moving contacts are located. A changeover switch includes a housing and a contact system. The housing contains a load terminal, a power supply I terminal, and a power supply II terminal. The load terminal is electrically connected to the moving contact. Two stationary contacts are respectively located on the power supply I terminal and the power supply II terminal. In this invention, the contact support has a notch design on the side near the load terminal, and two mounting protrusions are spaced apart for mounting contact springs, saving space and increasing the rotation angle of the contact support.

The application discloses a high-voltage direct-current relay with auxiliary contact, which comprises two static contacts, a moving contact, a push rod, a coil assembly, a moving iron core and an auxiliary contact. The moving iron core is movably arranged in the coil assembly and is fixedly connected with the push rod. The moving contact is movably connected with the push rod and cooperates with the two static contacts. The auxiliary contact comprises two auxiliary spring sheets arranged in the coil assembly, and the two auxiliary spring sheets are respectively provided with leading ends. The push rod has an insulating part and a conductive part arranged in an up-down manner. With the up-down movement of the push rod, the two auxiliary spring sheets clamp the conductive part or the insulating part of the push rod to realize the on-off of the auxiliary contact. The application can not only realize the monitoring function of the auxiliary contact by the cooperation of the two auxiliary spring sheets and the push rod, but also can offset the rebound force of the moving contact when the moving contact is released by the contact friction force of the two auxiliary spring sheets and the conductive part or the insulating part of the push rod.

The present application relates to the field of bearing measurement, in particular to a bearing manufacturing clearance detection device, including a workbench and a control cabinet, through the linkage of two groups of micrometers arranged oppositely and a transversely swingable pressing cylinder, on the basis of synchronous fixation of inner and outer rings, when the pressing cylinder drives the outer ring to swing, the two side connecting frames touch the micrometer measuring ends respectively, and the two groups of micrometers record the radial displacement of the two sides of the inner ring in real time. By comparing the two groups of data, not only the overall radial clearance value can be obtained, but also whether the two side clearances are symmetrical or exist load bias can be accurately judged, effectively overcoming the technical limitation that the existing device cannot compare the two side clearances; at the same time, the automatic centering of the micrometer is realized through the slope guidance of the positioning rod and the tapered positioning groove, the floating cooperation of the connecting cylinder and the connecting rod and the spring buffer can adapt to the bearing height, combined with the rotation of the bearing seat driven by the servo motor to obtain multi-phase clearance data, providing reliable support for comprehensive evaluation of bearing quality.

The embodiment of the invention relates to the technical field of connectors, and particularly discloses a high-speed backboard connector which comprises a female end connector and a male end connector which are used in a butt joint mode. The female end connector comprises a first signal contact and a second signal contact, and the first signal contact extends along a second direction; the second signal contact comprises a first signal body and a first signal convex part; the male end connector comprises a base, a third signal contact and a fourth signal contact, the third signal contact is arranged on the base and extends in the second direction, and the fourth signal contact comprises a second signal body and a second signal convex part; wherein the first signal contact is electrically connected with the second signal convex part, and the first signal convex part is electrically connected with the third signal contact. According to the high-speed backboard connector, the crosstalk influence of differential signal transmission is reduced, the signal quality is improved, the stability of signal transmission of the high-speed backboard connector can be ensured, and the signal transmission performance of the high-speed backboard connector is improved.

The utility model belongs to display monitoring equipment field, concretely relates to a display circuit board core area heat conduction structure, including the casing of display, the casing includes back cover plate 2, is provided with fin 21 on back cover plate 2, the main circuit board 5 is fixed in the casing, the main circuit board 5 is fixed with core circuit board 52, is provided with core element 521 on the core circuit board 52, is provided with heat dissipation support 7 to the back of core circuit board 52, heat dissipation support 7 one side is provided with first soft heat conduction sheet 71, and first soft heat conduction sheet 71 abuts core element 521, heat dissipation support 7 other side is provided with second soft heat conduction sheet 72, and second soft heat conduction sheet 72 abuts back cover plate 2, sets up heat dissipation support, forms heat conduction channel with heat dissipation support as the foundation, and the effect of heat dissipation support as the support and the length of heat dissipation channel is determined, and reliable contact is formed for the hard component of heat dissipation channel two ends through first soft heat conduction sheet and second soft heat conduction sheet.

The application discloses airtight pneumatic switch, which comprises a switch integral part, a shell covering the switch integral part, and a first sealing washer arranged between the switch integral part and the shell. The switch integral part comprises a pneumatic assembly, a push rod assembly arranged on the pneumatic assembly, and two groups of combined contacts with the same specification. The switch has long service life, high temperature resistance, convenient assembly and debugging, small size, light weight, and good circuit connection performance. The application further discloses a use method of the airtight pneumatic switch.

A vertical shaft ring-shaped steel support structure, including support ring, the outer side of support ring is fixedly installed multiple support legs, the bottom end of support leg is fixedly installed bottom plate, the top end of bottom plate is fixedly installed U-shaped seat, the U-shaped seat is rotatably installed threaded rod between support ring, the threaded rod is threadedly installed sliding plate, one side of sliding plate is fixedly installed support rod, one end of support rod is slidably penetrated in support ring and is fixedly installed support plate, one end of threaded rod is installed with drive assembly. The vertical shaft ring-shaped steel support structure can solve the poor adaptability, the difficulty of flexible adjustment of the scraper and the inconvenience of replacement, limit the construction quality and efficiency, flexible connection with the main equipment, height adjustable; can adapt to different road width and corner scene, can quickly replace different material, shape scraper, adapt to various concrete finishing needs.

The utility model relates to detection equipment technical field, the utility model provides a kind of perpendicularity detection device for elevator guide rail, it includes level frame body, level frame body is equipped with level meter;The number of sliding frame is two, and is set at the both ends of level frame body along horizontal sliding;Supporting plate is rotatably set in the side of sliding frame away from the level frame body, two sliding frames respectively support its corresponding supporting plate to adhere to the two opposite inner side walls of elevator shaft;Detection device is set in the lower side of level frame body, and detection device is used to detect the perpendicularity of elevator guide rail. Through the sliding cooperation of sliding frame and level frame body and the swing setting of supporting plate, the installation fixing process of device in elevator shaft is simplified, the dependence on operator experience is reduced, and the influence of human operation error on detection accuracy is reduced. The technical problem that the verticality detection detection equipment of elevator guide rail is inconveniently leveled during installation in the related art is solved, which affects the accuracy of detection data.

This invention relates to the design and fabrication method of a stretchable and shapeable thermoelectric device based on high-performance thin-film materials. First, a regular "paper-cut structure" array pattern is cut into a substrate thin-film material. Then, high-performance p-type and n-type thermoelectric materials are deposited sequentially on the substrate. Finally, electrode materials are deposited to connect the p-type and n-type thermoelectric materials in series. The thin-film thermoelectric device based on the paper-cut structure of this invention can transform from a two-dimensional planar structure to a three-dimensional structure under external force, changing the heat conduction within the device from a planar direction to a vertical direction, maximizing the utilization of the temperature difference between the heat source and the environment, and improving the device's power generation performance. Due to the three-dimensional network structure of the device itself, the cold end of the device can effectively exchange heat with the environment without the need for an additional heat dissipation module. The device structure of this invention is ingeniously designed, with strong compatibility in the fabrication process, and has significant application prospects in the field of wearable self-powered devices.

The present application relates to the technical field of functional thin film material preparation; in particular, it relates to a friction power generation flexible cilium film and a preparation method thereof. The preparation method comprises the following steps: adhering a high-temperature adhesive tape to one side of a hole plate to prepare a cilium template; mixing metal particles with an organic solution to prepare a homogeneous mixed solution; coating the homogeneous mixed solution on the side of the cilium template without the high-temperature adhesive tape, performing vacuum perfusion and heating solidification, and then taking off the flexible cilium film; laying the taken-off flexible cilium film flat, spraying a polytetrafluoroethylene solution on the cilium array surface of the flexible cilium film, and drying to obtain the flexible cilium film. The friction power generation flexible cilium film provided by the present application is a bendable flexible polymer film, the cilium film has the characteristics of high flexibility, high elasticity and low cost, and can coordinate and take into account the friction power generation performance and durability of the material, and has a good application prospect in the field of friction power generation.