354results about "Contact surface shape/structure" patented technology

The invention provides a clamping type monitoring sensor, a plum blossom contact assembly and a circuit breaker, the clamping type monitoring sensor is provided with an annular shell, the annular shell comprises a first semi-ring shell and a second semi-ring shell, and the first semi-ring shell and the second semi-ring shell are connected through a telescopic structure; the first semi-ring shell and the second semi-ring shell are each provided with at least two inwards-buckled clamping claws, and the clamping claws are arranged along the periphery of the annular shell. The telescopic structure is used for adjusting the size of an area defined by the clamping claws. The tulip contact assembly is applied to a clamping type monitoring sensor. The circuit breaker applies the tulip contact assembly. By applying the clamping type monitoring sensor, the sensor can adapt to different-size installation of tulip contacts of the same type from different manufacturers.

The invention relates to the technical field of motor controllers, and discloses an active circuit breaker, a motor controller, an electric assembly and a vehicle, the active circuit breaker comprises a conducting strip assembly, the conducting strip assembly comprises a first conducting strip and a second conducting strip, and the first conducting strip and the second conducting strip are arranged at an interval in the width direction of the first conducting strip; the detonating device is arranged between the first conducting strip and the second conducting strip, the detonating device is provided with a conducting pin, the extending direction of the conducting pin is parallel to the thickness direction of the first conducting strip, the detonating device is provided with a first firing pin and a second firing pin, the first firing pin is used for impacting the first weak part, and the second firing pin is used for impacting the second weak part. According to the active circuit breaker disclosed by the invention, the space in the thickness direction of the first conducting strip can be utilized for mounting the conducting pin, so that the space in the width and length directions of the first conducting strip can be more redundant, other structures of the motor controller are convenient to mount, and the internal space of the motor controller is optimized.

The invention discloses a CuCr contact and a preparation method thereof, and belongs to the field of alloy contact manufacturing, the CuCr contact is divided into an arc contact area, a transition area and a conductive connection area, and the Cr content of each area is in gradient distribution and is sequentially reduced, so that interface stress concentration can be avoided, and the structural compatibility and mechanical reliability of the whole contact are improved; meanwhile, integrated forming is achieved through the 3D printing technology, the size and the component boundary of each area can be accurately controlled, the complex structure design requirement of the contact is met, and the problems that in the prior art, performance gradient cannot be achieved according to the function requirements of different parts of the contact, and the material utilization rate is low are solved; the printed contact does not have the phenomena of composition segregation, agglomeration, uneven pores and the like, and the problems that in the prior art, Cr elements are difficult to distribute uniformly in a Cu matrix, Cr particles are prone to segregation and agglomeration, local ablation resistance is insufficient, and burning resistance is low are solved.

A contact arc extinguishing system of a switch belongs to the technical field of switches. Comprising a moving contact, a static contact and an arc extinguish chamber, the moving contact comprises a short contact piece and a long contact piece, grid pieces are arranged in the arc extinguish chamber in an array mode, the arc extinguish chamber is provided with an arc channel, the arc extinguish chamber is characterized by further comprising a labyrinth structure, the long contact piece is provided with a zigzag part, the zigzag part is coupled with the labyrinth structure, and a first moving contact of the short contact piece is located below the labyrinth structure. The second movable contact of the long contact piece is located above the labyrinth structure, and the labyrinth structure limits the arc gas above the labyrinth structure from being sprayed back to the lower portion of the labyrinth structure. The moving contact has the advantages that the arc gas has larger upward moving airflow, the upward movement of the arc is facilitated, and the effect can be ensured to be continuous all the time in the whole opening process of the moving contact; arc gas is prevented from impacting the moving contact, and lower breakdown is effectively prevented.

A unit pole of a double-breakpoint switch belongs to the technical field of low-voltage electric appliances. Comprising a shell, static contacts, a bridge-type moving contact, an arc extinguish chamber and a rotating shaft, the static contacts, the bridge-type moving contact, the arc extinguish chamber and the rotating shaft are located in the shell, the bridge-type moving contact is installed in the rotating shaft and comprises a pair of moving contact arms which extend out of the rotating shaft in a back-to-back mode, the static contacts are in a flat plate shape and are arranged on the top wall and the bottom wall in the shell respectively, and the arc extinguish chamber is arranged in the shell. The arc extinguish chambers are arranged in the shell and are in contact fit with the movable contact arms respectively, the movable contact arms form a < shape when making contact with the static contact, and the arc extinguish chambers are located on the left side and the right side in the shell respectively. The arc extinguish chamber has the advantages that the space occupied by the static contact in the shell is reduced, so that the space for placing the arc extinguish chamber can be increased, the arc extinguish chamber can obtain a larger space in the array direction of the grid sheets, more grid sheets can be stacked, the arc voltage can be improved, and the arc can be extinguished quickly; and meanwhile, the requirement of high-voltage breaking is met.

The present application provides a contact comprising: a first contact member formed of a tungsten-containing material, the first contact member having an exposed surface and a first groove open to the exposed surface, the first groove having a surrounding sidewall and a bottom wall defining an interior of the first groove; a first metal layer on a bottom wall of the first recess and having a top surface below the exposed surface of the first contact member; a liquid metal layer formed of a material containing a gallium indium tin alloy, located only on the top surface of the first metal layer and extending over the exposed surface of the first contact member, and the liquid metal layer is compliant and displaced by pressure applied to the liquid metal layer, and return to the initial shape in response to removal of the pressure on the liquid metal layer.

The invention relates to the technical field of low-voltage electric appliances, in particular to a contact module and a novel rotary disconnecting switch, and the contact module comprises an installation housing with an installation cavity, and the installation housing is rotatably connected with a rotary installation disc; the 2N arc extinguish chambers are connected with the mounting shell, and the arc extinguish chambers are positioned in the mounting cavity; the 2N static contacts are connected with the mounting shell, the static contacts and the arc extinguish chambers are alternately distributed around the circumferential direction of the rotary mounting disc, and one end of each static contact extends into the mounting cavity; the N static contacts are embedded in the rotating mounting disc, the N moving contacts are embedded in the rotating mounting disc, an insulating block is arranged between every two adjacent moving contacts, and the rotating mounting disc rotates to enable the two ends of each moving contact to abut against the two corresponding static contacts respectively; wherein N is a positive integer and is not less than 2; the rotary isolation switch has the effect of reducing the space occupancy rate of the rotary isolation switch in the inverter system.

The utility model relates to a high-voltage direct-current deicing isolating switch, which is structurally characterized in that a 550KV post insulator and a 35KV post insulator are parallelly arranged at the top of a base, a grading ring is arranged at the top of the 550KV post insulator, a static contact is arranged on the grading ring, and a main knife switch with a bending structure is arranged between the 35KV post insulator and the static contact; a bending control mechanism is arranged at the bottom of the main knife switch; an electric operating mechanism at the bottom of the base is connected with the bending control mechanism through an operating rod; and after the main knife switch is unfolded, the contact plate at the top is plugged with the static contact. According to the structure of the high-voltage direct-current ice-melting isolating switch, the conductive section of the conductive tube is increased, and the through-current capability of a product is improved; the main knife switch adopts a bending structure and has the characteristics of flexible rotation and strong corrosion resistance; the structure of the product is simplified, the later maintenance is facilitated, the maintenance period is prolonged, and the stability of switching-off and switching-on operation after the product runs for many years is ensured.

The invention relates to an actuator-sensor device (1) which has at least one upper membrane (2), wherein at least one actuator electrode having a signal input, and at least one unoccupied region in the form of a through-gap, are arranged on the at least one upper membrane (2). The device has at least one central membrane (3), wherein the at least one central membrane (3) has at least one hole-like opening (4). Furthermore, the device (1) has at least one lower membrane (5), wherein at least one actuator electrode having a signal input, and at least one unoccupied region in the form of a through-gap, are arranged on the at least one lower membrane (5). Finally, the device (1) has at least one upper sensor electrode (6) having a head and having a supply line with a signal output, wherein the head of the at least one upper sensor electrode (6) and the supply line of the at least one upper sensor electrode (6) are arranged in the at least one unoccupied region, in the form of a through-gap, of the at least one upper membrane (2), and at least one lower sensor electrode (7) having a head and having a supply line with a signal output, wherein the head of the at least one lower sensor electrode (7) and the supply line of the at least one lower sensor electrode (7) are arranged in the at least one unoccupied region, in the form of a through-gap, of the at least one lower membrane (5).

The invention relates to the technical field of low-voltage electric appliances, and particularly discloses a double-breakpoint switch unit and an isolating switch. A moving contact assembly driven to rotate is arranged in the middle of the shell structure, a static contact assembly and an arc extinguishing assembly are arranged on the rotating plane of the moving contact assembly, and the static contact assembly and the arc extinguishing assembly are arranged at intervals in the circumferential direction of the rotating axis of the moving contact assembly. The arc extinguishing assemblies are arranged on two sides of the moving contact assembly along a first direction, the static contact assemblies are arranged on two sides of the moving contact assembly along a second direction, and the first direction is vertically intersected with the second direction. According to the invention, the space utilization rate in the switch shell can be improved, and the size of the whole switch is effectively reduced while the arc extinguishing performance is ensured.

The invention belongs to the technical field of combined electric appliances, and particularly relates to a quick butt joint device suitable for a reserved double-fracture combined electric appliance. The quick butt joint device suitable for the reserved double-fracture combined electric appliance comprises an early-stage double-fracture isolating switch and a later-stage extension switch body, and is characterized in that a front insulator is mounted on the right side of the early-stage double-fracture isolating switch, a rear insulator is mounted on the left side of the later-stage extension switch body, the front insulator is connected with a conductor joint, and the conductor joint is connected with the rear insulator. The conductor joint is connected with the tulip contact, the tulip contact is connected with the conductor, and the conductor is connected with the rear insulator. The rapid butt-joint device has the beneficial effects that through the rapid butt-joint device, a later-stage interval can be directly spliced with an early-stage bus isolation position, so that the butt-joint work such as foundation measurement, alignment and repeated hoisting of a switch is greatly reduced, the reliability of a product is improved, and the construction period is shortened.

The utility model relates to the technical field of reed switches, in particular to a stable and reliable high-voltage-resistant high-power multi-point contact type reed switch. The stable and reliable high-voltage-resistant high-power multi-point contact type reed switch comprises a glass tube, a moving plate fixing rod, a beryllium copper straight elastic piece, a silver contact point, a riveting bolt, a contact point contact piece, a contact lower straight elastic piece and a fixing piece, the glass tube serves as a main body of the reed switch and is of a tubular structure, the glass tube is in a closed state, and the moving plate fixing rod and the silver contact point are fixed through the fixing piece. The glass tube is filled with inert gas, one end of the moving plate fixing rod is fixed to the left side in the glass tube, the fixing plate is fixedly installed on the right side in the glass tube, and the copper-plated straight elastic piece is installed at the right end of the moving plate fixing rod through a riveting bolt. The multi-point contact design of the silver contact point and the contact lower straight elastic sheet and the contact point contact sheet and the fixed sheet is adopted, a stable conduction circuit is formed under the action of a magnetic field, the contact reliability of the reed switch under various working conditions is greatly improved, and the risk of poor contact or open circuit is reduced.

The pressing operation unit is provided with: an operation member which can be pressed by an operator; a leaf spring member that imparts an operation touch feeling by means of elastic deformation in response to a pressing operation; and a housing that holds the leaf spring member, the operating member having: an insulator that covers the housing; a first protrusion provided on one surface of the insulator; and a second protruding part which is provided on the other surface of the insulator at a position facing the first protruding part, and which is made of a material different from that of the first protruding part.

The utility model discloses a relay, which comprises a first shell and N non-series contact groups accommodated in the first shell, N is greater than or equal to 2, each contact group comprises at least one contact pair, and each contact pair comprises a movable contact and a static contact which are correspondingly matched with each other; the circuit breaker is characterized in that in the N-1 contact groups, the contact surfaces of the movable contacts and / or the static contacts in each contact pair in at least one contact group are provided with a plurality of mutually spaced convex parts, the movable contacts in all the contact groups are driven by the action component to act towards the static contacts, and the convex parts are used for pushing against ice layers on the surfaces of the contacts to realize conduction. According to the utility model, certain heat is generated after the contact group provided with the plurality of mutually spaced protruding parts is conducted, so that the temperature inside the relay is raised, and then ice layers on other contacts are melted, contacted and conducted, thereby improving the contact reliability of the contacts.

The utility model discloses a durable composite contact, which comprises a base body, a first rectangular space is arranged in the lower surface of the base body, a second rectangular space is arranged in the top wall of the first rectangular space, a rectangular moving block can be just clamped in the second rectangular space, a contact is fixedly arranged at the upper part of the rectangular block, and the lower part of the base body is provided with a second rectangular space. A contact layer which penetrates through the top wall of the second rectangular space, extends out and is slidably connected to the base body is arranged at the upper end of the contact, a fixing plate is arranged on the top wall of the first rectangular space, a bolt penetrates through and is rotatably connected to the fixing plate, and the fixing plate is in direct threaded connection with a moving block through the bolt; the up-down movement of the moving block can be limited, so that the contact layer is prevented from shaking due to vibration; and meanwhile, rotation of the bolt is limited through the clamping block, so that the condition that the contact layer deviates due to wrong rotation of the bolt is avoided, and the stability of the contact layer is ensured.

The utility model discloses an electric leakage test detection loop and a release, and belongs to the technical field of low-voltage electric appliances. The electric leakage test detection loop comprises a first connecting piece and a first torsion spring, wherein the first torsion spring is connected with the first connecting piece; a first breakpoint is formed between the second torsional spring and the first connecting piece, and the second torsional spring can abut against the first connecting piece; the first torsional spring and the second connecting piece are second breakpoints, and the first torsional spring can abut against the second connecting piece; one end, deviating from the first connector, of the second torsion spring is connected with the third connector; one end of the second connecting piece away from the first torsion spring is connected with the circuit board. One end of the third connecting piece away from the second torsion spring is connected with the circuit board. The first torsion spring and the second torsion spring are arranged on the outer side of the release shell, so that the space in the release shell is saved, the purpose of reducing the design space of the electric leakage release is achieved, and the dielectric property of a product is improved. And by arranging the two breakpoints, mistaken touch of an operator is avoided, and high stability and reliability are achieved.

The utility model discloses a movable contact group of a change-over switch, which belongs to the technical field of movable contact groups of change-over switches, and particularly structurally comprises a conductive contact ring, a contact column and a contact base, the contact ring is sleeved on the contact column, the contact column is fixedly connected on the contact base, and the lower end of the contact column is fixedly connected with a fixed inlay. And the fixed inlay is embedded into the contact base to be fixed. According to the utility model, after the fixed inlay is fixedly connected with the lower end of the binding post, the end of the binding post is embedded into the contact base to be fixed (by means of pouring and the like), part of the inlay in the contact base is embedded into the groove part or the three-dimensional cavity structure with a large lower part and a small upper part is used for blocking and limiting the fixed inlay, and the fixed inlay is prevented from being damaged under the impact action of horizontal force on the contact post for a long time. According to the utility model, better connection reliability and anti-drop effect are achieved, the connection stability of the contact column can be improved, the drop is avoided, the contact area is increased, and the occlusion stability of the contact base and the contact column is better.

The utility model belongs to the technical field of power supplies, and particularly relates to a direct-current voltage-stabilizing and current-stabilizing power supply which comprises a direct-current voltage-stabilizing and current-stabilizing power supply body, a plurality of air inlet cylinders are communicated with the left wall of the direct-current voltage-stabilizing and current-stabilizing power supply body, and a plurality of air outlet cylinders are communicated with the right wall of the direct-current voltage-stabilizing and current-stabilizing power supply body. A pair of limiting plates is fixedly arranged on the left side wall face and the right side wall face of the direct-current voltage and current stabilization power source respectively, a polished rod is fixedly arranged between the limiting plates, a plurality of sliding blocks are arranged on the polished rod in a sliding mode, a lead screw is rotationally arranged between the limiting plates, the lead screw is in threaded connection with the sliding blocks, and dustproof plates are fixedly arranged on the bottom faces of the sliding blocks. According to the utility model, through reverse translation of the plurality of slide blocks, the dustproof plate can be driven to shield the air inlet cylinder and the air outlet cylinder, so that external dust is prevented from entering the DC voltage-stabilizing and current-stabilizing power supply main body through the air inlet hole or the air outlet hole when the DC voltage-stabilizing and current-stabilizing power supply main body is in an idle state; and the frequency of cleaning the interior of the DC voltage-stabilizing and current-stabilizing power supply main body by workers is reduced.

A mobile contact (20) is provided for an electric current switching device (50), comprising:a first conductor blade (1) and a second conductor blade (2), extending in planes (P1, P2) parallel to each other and distant from each other, the conductor blades (1, 2) being linked in rotation about a common rotational axis (R),a first and a second spacer (3, 4) configured to maintain a minimum distance between the first blade (1) and the second blade (2),in whicha cross section (S1, S2) of each blade (1, 2) is shaped so as to:have an area equal to the area of a reference cross section (S1′, S2′) of rectangular shape and of the same length (a), andhave a quadratic moment greater than the quadratic moment of the reference cross section (S1′, S2′), the quadratic moment being determined in relation to an axis parallel to the transverse axis (T1, T2) of the blades (1, 2).

The invention discloses a static contact assembly and an isolating switch, and relates to the field of electrical equipment. The static contact assembly comprises a supporting piece, a first static contact piece and a second static contact piece, the first static contact piece and the second static contact piece are arranged on the supporting piece in a mutually spaced mode, and a clamping space used for clamping the movable contact piece is formed between the first static contact piece and the second static contact piece. The static contact assembly comprises the first static contact piece and the second static contact piece which are arranged at an interval, so that the static contact assembly can clamp the moving contact piece through the first static contact piece and the second static contact piece to ensure that the static contact assembly and the moving contact piece have a better contact effect and are not easily interfered by vibration and the like; and the problem of poor contact easily occurring in the prior art is improved. The disconnecting switch comprises the moving contact and the static contact assembly, and therefore the disconnecting switch has the advantage of being good in contact effect.

The utility model discloses a composite contact convenient to recycle, which comprises a base body, a spherical groove is arranged in the upper surface of the base body, the bottom of the spherical groove is communicated with a contact hole positioned in the base body, the inner wall of the contact hole is provided with a conducting strip which is connected with the base body into a whole and has bending performance, and the conducting strip is provided with a plurality of grooves. A contact hole is formed in the base body, a composite sheet which penetrates through the contact hole and abuts against the inner wall of the contact hole is clamped between the conducting sheets, a spherical protruding part is arranged on the composite sheet, the protruding part is matched with the spherical groove in shape, the protruding part is attached to the spherical groove, and by arranging the contact hole and the conducting sheets, the contact area between the base body and the composite sheet is increased; the conductivity is enhanced, the stable contact between the composite sheet and the base body is ensured, and the connection between the composite sheet and the base body is not influenced by slight up-and-down movement; rapid connection between the composite sheet and the base body is achieved through the convex ring, the clamping ring and the rubber connecting ring, and assembly and disassembly can be achieved without tools.

The application belongs to the technical field of arc extinguishing chamber of circuit breaker, and relates to a double-acting arc extinguishing chamber, a switching-on and switching-off method and a circuit breaker. The double-acting arc extinguishing chamber comprises a moving contact, a static contact and a transmission mechanism. The static contact comprises a static support, a static arc contact and a static main contact. The moving contact comprises a moving main contact, a moving arc contact and a nozzle. The transmission mechanism comprises an upper driving rod, an upper elbow arm rod, a lower driving rod, a lower elbow arm rod, a rotating rod and a driving rod. One end of the upper driving rod is hingedly connected to the upper part of the nozzle, and the other end is hingedly connected to the upper end of the upper elbow arm rod. One end of the lower driving rod is hingedly connected to the lower part of the nozzle, and the other end is hingedly connected to the lower end of the lower elbow arm rod. The lower end of the upper elbow arm rod is hingedly connected to one end of the rotating rod, and the upper end of the lower elbow arm rod is hingedly connected to the other end of the rotating rod. The middle position of the rotating rod is hingedly connected to one end of the driving rod, and the other end of the driving rod is connected to the static arc contact. The problem of vibration caused by the instability of the linear motion of the static arc contact and the quick-return characteristic of the existing structure due to the unbalanced structure of the transmission rod is solved.

The utility model relates to a change-over switch, which comprises a base, a contact system, a driving mechanism and a cover plate arranged on the base, the cover plate covers the contact system and the driving mechanism, and the driving mechanism comprises a motor, a screw rod in linkage fit with the motor and a nut arranged on the screw rod. The contact system comprises a static contact seat arranged in the base, a plurality of static contacts respectively arranged on the static contact seat, a movable contact frame which is arranged in the base in a sliding manner and is in linkage fit with the nut, and a plurality of movable contacts which are arranged on the movable contact frame in a linkage manner and are matched with the plurality of static contacts; the moving contact comprises two moving contact pieces arranged in contact holes of the moving contact frame, a base plate arranged between the two moving contact pieces and two elastic pieces arranged between the two moving contact pieces and the moving contact frame respectively, and a contact clamping space matched with the static contact is formed between the two ends of the two moving contact pieces. The utility model has the advantages of simple structure, stable and reliable performance, good protection performance and long service life.

The embodiment of the invention provides a change-over switch, and relates to the technical field of switching devices. The change-over switch comprises a switch shell, a static contact structure and a moving contact structure, the static contact structure comprises two first static contacts and two second static contacts, and the moving contact structure comprises a sliding part, a first moving contact, a second moving contact and a third moving contact; the sliding part is used for sliding relative to the switch shell under the action of external force, so that the first moving contact is connected with the two first static contacts, the second moving contact is connected with the two second static contacts, and loops are connected in parallel to form a first voltage platform; or, the third moving contact is connected and conducted with one of the first static contacts and one of the second static contacts, so that the loops are connected in series to form a second voltage platform. According to the invention, different voltage platforms can be switched according to different charging scenes, so that the architecture of the charging system is simplified, the charging efficiency is improved, and the cost is reduced.

A movable contact (20) is proposed for an electrical current interruption device (50), comprising: - a first conducting knife (1) and a second conducting knife (2), extending from parallel planes (P1,P2) separated by a distance between them, the conducting knives (1,2) being rotationally linked about a common axis of rotation (R), - a first and second spacer (3,4) configured to maintain a minimum distance between the first knife (1) and the second knife (2), wherein a cross-section (S1,S2) of each knife (1,2) is shaped to: - have an area equal to the area of ​​a reference rectangular cross-section (S1',S2') of the same length (a), and - have a second moment of area greater than the second moment of area of ​​the reference cross-section (S1',S2'), the second moment of area being determined with respect to an axis parallel to the transverse axis (T1,T2) of the knives (1,2). Figure of the abstract: Figure 3

To provide a contact mechanism that can further suppress the electromagnetic repulsive force that may occur when current is applied. [Solution] A contact mechanism 100 according to one aspect of the present disclosure comprises a movable element 110, a first stator 120, a second stator 130, a connecting member 140 that connects the movable element 110 and the movable iron piece 150 and drives the movable element 110 with an electromagnet having a movable iron piece 150, and an auxiliary yoke 160 that is positioned inside the first stator 120 and the second stator 130 in a first direction and on the first surface side of the movable element 110, wherein the first stator 120 extends in the first direction from a first connection to a first fixed contact, the second stator 130 extends in the first direction from a second connection to a second fixed contact, and the movable element 110 is planar when viewed from the first direction at the location on the first surface corresponding to the location where the auxiliary yoke 160 is positioned.

A micro-electromechanical systems (MEMS) switch (100, 200, 300, 400, 500, 600) and method (800) of fabricating the same including at least one comb drive (101 and 103, 201 and 203 and 205, 301 and 303, 401 and 403 and 405, 501 and 503 and 505) having a first input (113, 219, 307, 415, 515) and a second input (107, 215, 313, 417, 517), at least one conductive beam (105, 207, 209, 305, 407, 409, 507, 509, 701, 705, 709, 713, 717, 721) connected across the at least one comb drive, a first contact (109, 211, 311, 411, 511), and a second contact (111, 213, 309, 413, 513), wherein no voltage difference between the first input and the second input does not result in any movement of the MEMS switch, and wherein a voltage difference between the first input and the second input causes an electrostatic force to be generated that causes the at least one conductive beam to move in a direction orthogonal to a direction of the electrostatic force.