363 results about "Contact system" patented technology

The invention relates to the technical field of railway catenary monitoring, in particular to a multi-source sensing fusion method and system for state evaluation of a catenary compensation device, and the method comprises the steps: obtaining multi-source sensing data such as vibration, temperature and current, generating a phase space trajectory through employing a self-adaptive phase space reconstruction technology, and carrying out the state evaluation of the catenary compensation device; multiple topological features are extracted to form topological feature vectors, and the vectors are combined with temperature and current data to construct a fault probability model. According to the method, the health degree score of the contact network compensation device can be calculated, trend prediction can be carried out, early warning information can be generated, high-precision early warning is realized, the clamping stagnation risk of the pulley block can be predicted three months in advance, passive response is converted into active prevention, the maintenance efficiency and safety of the contact network are remarkably improved, and the maintenance cost is reduced. By means of the innovative technology, the safety of railway operation is improved, the maintenance cost is reduced, and revolutionary transformation is brought to the railway industry.

The invention discloses a method and a system for evaluating the reliability of a contact network system under an icing galloping condition. The method comprises the following steps: collecting icing galloping data of the overhead line system in real time, and carrying out load conversion and statistics on parts of the overhead line system in icing galloping by adopting a rain flow counting method; the reliability of parts under the icing galloping condition is calculated through the Miner cumulative damage theory, and weight distribution of the overhead line system is conducted through an analytic hierarchy process; based on the reliability and the weight distribution result of each part under the icing galloping condition, evaluating the reliability of the overhead line system of the data acquisition anchor section until the evaluation task is finished; the method and the system provided by the invention are suitable for evaluating the operation reliability of the contact network system in the icing galloping section, can provide support for operation and maintenance of the contact network system after icing galloping occurs, and have wide application prospects.

The utility model relates to the technical field of electronic control devices, in particular to a relay, which comprises an insulating cover, a contact structure and a protective structure, and is characterized in that the contact structure is accommodated in the insulating cover; the protective structure is arranged on the circumferential side wall of the insulating cover, the protective structure is in contact with at least part of the circumferential side wall of the insulating cover, the protective structure comprises an elastic part, and the elastic part can apply pressure towards an inner cavity of the insulating cover to the insulating cover; and / or, the protection structure comprises a rigid part, and the rigid part can apply pressure towards the inner cavity of the insulation cover to the insulation cover, so that a safety protection effect can be achieved under extreme working conditions of short circuit, overload breaking and the like of the contact system, the sealing reliability of the cavity and the structural strength of the insulation cover are improved, and the high short circuit resistance requirement of a user is met.

The invention relates to the technical field of life evaluation, in particular to a circuit breaker life evaluation method and system for switching an alternating current filter in an extra-high voltage converter station, and the method comprises the steps: collecting multi-dimensional operation data in the operation process of a circuit breaker in real time; extracting a high-frequency-band energy ratio as a contact system abrasion loss characteristic parameter; establishing an arcing energy accumulation model according to the arc light intensity time sequence signal, and calculating an effective arcing energy value of a single operation; constructing a life weight distribution model, inputting the wear loss characteristic parameters, the arcing energy accumulation value and the environment temperature and humidity data into the model, and outputting a mechanical wear index, an electric corrosion index and an environment degradation index; establishing a three-axis linkage correction function; generating a comprehensive life evaluation index based on the corrected mechanical wear index, electric corrosion index and environmental degradation index, and triggering an early warning signal when the index exceeds a preset threshold value; according to the invention, by establishing the life evaluation model based on multi-dimensional data fusion, the precision and reliability of life prediction of the circuit breaker of the extra-high voltage converter station are significantly improved.

The invention relates to a contact device (15), a contact system (20), and a method for assembling the contact system (15), wherein the contact device (15) comprises a contact element arrangement (65) with at least one contact element (70), and a housing (60) with a foil housing part (80), wherein the contact element (70) comprises a connecting section (160), at least one strain relief section (175, 180) arranged on the connecting section (160), and a cutting arrangement (170) arranged on the connecting section (160) with at least one first cutting element (200), wherein the foil housing part (80) comprises a foil housing wall (120), a receiving area (155), a foil receptacle (280), a first cutting edge receptacle (285), a first web (250), a third housing opening (130), and a bending space (286).wherein the bending space (286) adjoins the foil housing wall (120) on the inside and extends between the first web (250) and the third housing opening (130) along the insertion axis (115), wherein the foil receptacle (280) adjoins the foil housing wall (120) on the inside and the first web (250) separates the foil receptacle (280) from the first cutting receptacle (285), wherein the foil receptacle (280) and the first cutting receptacle (285) extend along the insertion axis (115) from the receiving area (155) in the direction of the third housing opening (130) and open into the bending space (286).

The invention relates to the technical field of non-variable-capacity pump set parallel control, and discloses a multi-blower parallel air volume control method, which comprises the following steps of: acquiring the real-time rotating speed and the real-time input power of a driving frequency converter of each single blower in a parallel system, and superposing a periodic rotating speed perturbation signal at a common pressure given value to obtain a multi-blower parallel air volume control result; power response amplitudes of all single blowers are extracted synchronously, the change rate of real-time power relative to the rotating speed is calculated to generate a power response gradient representing the energy conversion characteristic of the unit, the unbalanced blowers are recognized according to deviation parameters of the power response gradient relative to the global average value, the rotating speed instruction gain of the blowers is reduced, and the unit energy conversion characteristic is obtained. According to the method, load distribution is converted into an active adjustment mechanism based on the physical characteristics of the impeller, accurate identification of the offset of the physical operation sites of the parallel unit is achieved, and the accuracy of the offset of the physical operation sites of the parallel unit is improved on the premise that branch flow sensing hardware is not needed. And the recessive surge risk caused by single-machine performance discretization is inhibited.

The utility model relates to a relay and an electric meter. The relay comprises an electromagnetic pushing system, the electromagnetic pushing system comprises a coil and an armature assembly, the armature assembly is located on one side of the coil in the first direction, and the axis direction of the coil is in the third direction; the contact system is located on the third direction side of the electromagnetic pushing system and comprises a static contact unit and a movable contact unit which are arranged in the third direction, the movable contact unit is connected with the armature assembly, one end of the movable contact unit is fixed to the relative position of the static contact unit, and the other end of the movable contact unit is suitable for being driven by the armature assembly to be close to or away from the static contact unit; the terminal group is positioned on one side, deviating from the electromagnetic pushing system, of the contact system and is connected with the static contact unit and the movable contact unit; wherein the first direction is perpendicular to the third direction. According to the invention, the space layout of the relay is more reasonable, the structure is more compact, the occupied space is effectively reduced, the relay can be better matched with other parts, and the applicability is good.

The application relates to the field of low-voltage electrical apparatus, in particular to a contact system and a switch electrical apparatus comprising the same, the contact system comprising a pivotally arranged rotary contact structure and at least one movable contact structure, the rotary contact structure comprising a rotary contact, the rotary contact comprising a rotary contact part, the movable contact structure comprising a movable contact, the movable contact comprising a movable contact part, the rotary contact part and the movable contact part being combined to make the rotary contact and the movable contact closed when the rotary contact is in a closed position; the movable contact structure further comprising an elastic member matched with the movable contact; during the breaking process of the rotary contact and the movable contact, the elastic member stores energy when the rotary contact part drives the movable contact part to move from an initial position to a disengagement position, the rotary contact continues to rotate, the elastic member releases energy to drive the movable contact part to reset to the initial position; the contact system and the switch electrical apparatus have high breaking capacity.

The invention relates to the technical field of worm size detection, and discloses a worm key size precision detection device and a detection method, the worm key size precision detection device comprises a detection table, the detection table is provided with a detection box used for detecting a worm, and the detection box is internally provided with a feeding assembly used for driving the worm to move. According to the scheme, flexible positioning and mechanical linkage design is adopted, and an efficient and accurate detection process is achieved. The core lies in that the feeding assembly and the positioning structure cooperatively operate, on one hand, a worm can adjust the position in a self-adaptive mode through an elastic floating mechanism, and stable clamping is ensured through cooperation with a multi-direction rolling contact system; and on the other hand, the moving part is combined with hydraulic drive to achieve horizontal conveying, meanwhile, gear and rack transmission is converted into vertical positioning, and therefore the worm can be accurately positioned in the conveying process. And meanwhile, the scheme also comprises multiple anti-separation mechanisms, so that the operation reliability is ensured, the operation convenience and the process stability are both considered in the overall design, and an efficient solution is provided for worm detection.

A switching device comprises an electromagnetic system and two contact systems, the electromagnetic system comprises a coil assembly, a movable iron core and a static iron core, a magnetic gap is reserved between the movable iron core and the static iron core, each contact system comprises a movable contact assembly and a static contact assembly which are matched with each other, and the electromagnetic system is arranged between the two contact systems. The movable iron core is in linkage connection with a linkage piece, the two ends of the linkage piece are in linkage connection with the movable contact assemblies of the two contact systems respectively, under driving of the electromagnetic system, the moving tracks of the movable contact assemblies, the movable iron core and the linkage piece are all parallel to the central axis of the linkage piece, and the central axis of the linkage piece is connected between the two ends of the linkage piece. According to the utility model, the two contact units are respectively arranged at the two opposite sides of the electromagnetic system, the two ends of the linkage piece can drive the moving contact assembly, and meanwhile, the moving tracks of the moving contact assembly, the moving iron core and the linkage piece are parallel to the central axis of the linkage piece, so that the occupied space is small, and the size of the switching device is reduced.

Devices and associated method are shown that include a mass movably coupled over a substrate. In selected configurations, a controlled contact system is coupled between the mass and the at least one stopper. Examples are also shown where the controlled contact system includes a first stage contact coupled to a flexible beam and a second stage contact.

The application provides a contact pressure distribution method and system for micro relays, and relates to the technical field of control, which comprises the following steps: obtaining contact system state information, establishing a contact micro-element force-displacement response characteristic, identifying a stress concentration area, adjusting a driving force application path of a moving contact to redistribute contact pressure, and generating a segmented motion control instruction based on a fatigue life constraint. The application can effectively reduce the stress concentration phenomenon on the contact surface, optimize the contact pressure distribution, prolong the service life of the contact, and improve the reliability of the relay.

The invention relates to the technical field of electric tool switches, in particular to a redundant contact electric tool switch which comprises a shell, a mounting structure, a control structure, a sealing structure, a driving structure and a triggering structure. The arrangement of the trigger structure realizes double-point contact, the design of the redundant contact system avoids the problem of poor contact caused by abrasion of a single contact, avoids the problem of repeated disassembly of the switch for maintenance, improves the practicability, and meanwhile, the movable and static contacts are not easy to fall off when being in contact, are strong in stability, and are convenient to maintain. The arrangement of the sealing structure ensures the overall sealing performance inside the switch, avoids the problem of poor contact caused by dust entering the switch, avoids the problem that a sealing ring at the joint of the button and the shell is easy to fall off, and the arrangement of the control structure realizes the switching between a switching mode and a rotating speed adjusting mode. The rotating speed of the electric tool is adjusted by pressing the button, and flexibility is high.

The application discloses a kind of based on workshop thing contact system monitoring abnormal event dynamic scheduling method, the information of production process is monitored by the means of Internet of Things, the information monitored will be uploaded to workshop network;After the basic information of production and manufacturing is extracted from workshop network, the three-target scheduling model of maximum completion time, single machine load and machine total processing time is established, and the basic scheduling method is provided by JAYA algorithm;After workshop Internet of Things system monitoring has abnormal event, the scheduling plan of already scheduling is adjusted locally using rescheduling strategy;After adjusting original scheduling, the maximum completion time and machine deviation degree are evaluated, and the feasibility of conforming to actual processing environment is continued to complete the remaining scheduling operation.The application uses the mode of workshop Internet of Things to improve the response capability to dynamic disturbance, and the dynamic scheduling strategy is committed to improving workshop original scheduling scheme in two aspects of processing efficiency and stability, to obtain effective workshop scheduling plan.

The invention discloses a parallel contact system for a magnetic latching relay and the magnetic latching relay, and belongs to the technical field of electrical switches. The contact system comprises a base and a pair of contact assemblies arranged in parallel, and each contact assembly comprises a zigzag structure formed by a bus bar, a movable contact spring assembly and a static contact. The two movable contact spring assemblies are parallel and electrically connected in parallel. The relay comprises the contact system, a coil assembly, a magnetic steel assembly and a push rod. According to the invention, through parallel connection of the double zigzag structures, current shunting and contact resistance reduction are realized, electromagnetic attraction and repulsive force between the parallel conductors and between the conductors and the bus bars are utilized, the current-carrying capability, large current impact resistance and reliability of the relay are significantly improved, and the size of a product is reduced.

An operating mechanism of a circuit breaker, comprising: a support (1); a rocker arm assembly, a tripping fastener (7), a locking fastener (10), and a refastening piece (9) that are rotatably provided on the support (1), separately; a first crank (14); an energy storage spring (4); a sliding rail (1-0) fixedly arranged relative to the support (1); a sliding block (18); a first connecting rod (16); a second connecting rod (19); a second crank (22) rotatably arranged about a sixth center (6S); a third connecting rod (23); and a third crank (25) rotatably arranged about a seventh center (7S), wherein the third crank (25) is located on one side of the operating mechanism in the horizontal direction of the operating mechanism. Switching between three working states can be achieved without connection to a contact system; moreover, the layout of the contact system can be changed, so as to provide a larger installation space for an arc-extinguishing chamber.

The utility model relates to low -voltage electrical apparatus class product field, a kind of emergency starting device operating mechanism, including upper shell, upper cover and moving contact system, upper shell is equipped with track, the slider capable of moving along the track extension direction is installed in this track, horizontal through guide slot is opened in slider, the two extension ends of this guide slot are at different heights, and connecting shaft is installed in guide slot The two ends of connecting shaft are fixedly connected with two push rods respectively, and the lower end of push rod is connected with moving contact system;Dialing device is arranged between upper cover and upper shell, the action end of dialing device is connected with slider to push slider to move in track, and the operating mechanism can be closed when the main contact is closed by management personnel manual operation when the circuit appears power failure or coil attraction problem, so that the main contact is completely closed.

The invention discloses a switching device manual operation mechanism with a power state indication function, and belongs to the technical field of low-voltage apparatuses. Comprising an operation panel and a display support which are adjacently arranged in two vertical planes. The two rotating shafts are in transmission connection with the first moving contact and the second moving contact respectively; the first connecting rod assembly connects the operation panel and the rotating shaft. The second connecting rod assembly connects the rotating shaft and the display support. The first indicating piece and the second indicating piece are arranged on the second connecting rod assemblies on the two sides of the display support. When the operating panel rotates, the rotating shaft and the indicating sheets are driven to act through the connecting rod assembly: when any moving contact is contacted with the static contact, the corresponding indicating sheet is arranged on the display bracket; when the two circuits are disconnected, the two indicating sheets are separated from the display support. The state indication mechanism and the contact system share the same mechanical transmission path, and the action of the indication sheet is completely determined by the actual position of the moving contact, so that false indication caused by faults or asynchronization of a traditional independent indication module is fundamentally avoided, and the operation safety is remarkably improved.

Provided are a contact system, a contact unit and a circuit breaker. The contact system includes a moving contact assembly arranged in a shell and a pair of static contact assemblies. The moving contact assembly includes an arc isolation portion which is assembled rotatably. The arc isolation portion is provided with a contact groove inside. A pair of moving contact portions are arranged in the contact groove. Each static contact assembly includes a static contact portion which extends into the contact groove. The arc isolation portion rotates and drives the pair of moving contact portions to be in contact with or separated from the static moving portion in the contact groove. An edge of the arc isolation portion is also provided with a pair of mounting grooves which are communicated with the contact groove, and each mounting groove is at least reserved with a notch for the static contact portion to be placed at one end surface of the arc isolation portion. According to the present invention, when the contact system is assembled, the static contact portion of the static contact assembly is arranged correspondingly from the notch and can be placed in the contact groove at an appropriate angle without lifting the static contact portion, which simplifies the step of assembling the contact system, is convenient in operation, can achieve automatic assembly and is conducive to reducing the cost.

This application relates to the field of electrical connection device technology, and more particularly to a double-break circuit breaker. The double-break circuit breaker provided by this application includes a housing and a contact system and an arc-extinguishing system located within the housing. The arc-extinguishing system includes a first sub-arc-extinguishing structure, a second sub-arc-extinguishing structure, and a partition. The first sub-arc-extinguishing structure is used to extinguish the arc generated when the first stationary contact separates from the first moving contact, and the second sub-arc-extinguishing structure is used to extinguish the arc generated when the second stationary contact separates from the second moving contact. The partition extends from the arc-initiating zone to the arc-extinguishing zone, providing electrical isolation between the first and second sub-arc-extinguishing structures in the arc-initiating and arc-extinguishing zones. Thus, during the arc-extinguishing process, the arc generated by the first contact group and the second contact group is less likely to cross-contact. The first sub-arc-extinguishing structure is only used to extinguish the arc generated by the first contact group, and the second sub-arc-extinguishing structure is only used to extinguish the arc generated by the second contact group, which helps to improve arc-extinguishing efficiency.

An excitation integrated contactor comprises a shell, a driving system, a contact system, an electronic ignition assembly and an excitation execution piece, and the contact system is located in a sealed cavity; the electronic ignition assembly comprises an electronic ignition device and an electronic ignition device shell, the electronic ignition device shell penetrates through the shell to abut against the sealing cavity, the sealing element penetrates through the electronic ignition device shell, the excitation execution part penetrates through the sealing element to seal one end of the sealing element, and the other end of the sealing element is in sealed connection with the sealing cavity; one end of the excitation executing part corresponds to the movable contact plate, the other end of the excitation executing part corresponds to the electronic ignition device, a gap between the electronic ignition assembly and the shell is filled with a first sealing part, and the first sealing part seals a gap between the shell of the electronic ignition device and the sealing cavity; in a normal working state, a gap is reserved between the excitation execution piece and the movable contact plate. By arranging the sealing element and the first sealing element, the overall sealing performance of the contactor and the mechanical strength of the shell are improved.

A switch belongs to the technical field of low-voltage apparatuses. Comprising a main shaft, a shell and a contact system, the contact system is arranged in the shell, the main shaft is rotationally arranged on the outer side of the shell, a swing piece is installed on the main shaft, the swing piece is in linkage with a moving contact of the contact system through hinge joint, and the contact system is arranged in the shell. At least one of the pendulous reeds is provided with an impact end, and when the main shaft rotates to a switching-off in-place position, the impact end impacts the housing to prevent the main shaft from continuously rotating along the switching-off direction. The utility model has the advantages that the impact end is arranged on the swing sheet of the main shaft connected with the moving contact, the number of parts is reduced, and the structure is simplified.

A moving contact system of a switch belongs to the technical field of low-voltage apparatuses. Comprising a contact support, a contact piece and a contact cover, the contact piece is rotatably arranged on the contact support, the contact cover is located on the side, facing a static contact of a switch, of the contact piece, and the contact cover is clamped on the contact support through a lock catch connecting structure. The moving contact has the advantages that the contact cover of the moving contact is clamped on the contact support through the lock catch connecting structure, the assembly process is simplified, the assembly efficiency can be improved, and the assembly cost is reduced.

The invention relates to the technical field of low-voltage switching devices, in particular to an arc extinguishing device and a circuit breaker. The arc extinguishing device provided by the invention comprises a contact system, an arc extinguishing chamber and an arc running piece, the arc extinguish chamber comprises a plurality of grid sheets, and all the grid sheets are sequentially arranged at intervals to form a grid sheet group; the arc running piece is arranged on one side of the notch of the grid piece group along the arrangement direction of the grid pieces, and the arc running piece is electrically connected with the contact system; at least one bending part is arranged on the arc running piece in the arc running direction of the arc running piece, the bending part protrudes towards the notch side of the grid piece set, and the bending part and the grid pieces form breakdown points. The arc running piece is provided with at least one bending part along the arc running direction, the bending part protrudes towards one side of the notch of the grid piece group and is matched with the grid piece in the arc extinguish chamber to form a breakdown point, an electric arc is guided to be broken down and transferred towards the end part on the arc running piece through the breakdown point, and repeated advance and retreat are avoided, so that the arc voltage can be pulled up more quickly, and the product performance is improved.

The invention discloses an arcing contact system, a main contact system and an electric appliance switch, and belongs to the technical field of electric appliance equipment, the arcing contact system comprises a static arcing contact, a moving arcing contact, an isolation space and a non-current-carrying structure, the static arcing contact is used for being arranged in an arc extinguishing system; the moving arc contact comprises a linkage end and a contact end which are connected to a body of the moving arc contact, and the contact end is used for being in contact with the static arc contact; the isolation space is provided with a first through hole and a second through hole, the linkage end is located in the isolation space, and the first through hole is used for allowing the contact end to extend to the arc extinguishing system; the first end of the non-current-carrying structure is connected to the moving arc contact, the second through hole is used for allowing the second end of the non-current-carrying structure to extend out of the isolation space, and the second end is used for being detachably connected to the main contact system. According to the invention, the linkage end of the moving arc contact is arranged in the isolation space, and the contact end is arranged in the arc extinguishing system, so that the arc contact system can be isolated from the main contact system, the arc generated by the arc contact system is prevented from leaking into the main contact system, and the reliability and safety of the arc extinguishing system are improved.

A contact system (20) for the electrical contact of an electrical conductor element (14) embedded in an insulating sheath (10) of a cable harness (4a) is intended to enable the electrical contact of a cable harness (4a) in a particularly simple and cost-effective manner that also meets high reliability requirements. According to the invention, this is achieved by means of a connection module (22), in the outer housing (25) of which a part of the cable harness (4a) can be fixed, and by means of a plurality of contact pins (36), which are guided transversely through the outer housing (25), as viewed laterally with respect to the longitudinal direction of the cable harness (4a).

The present invention discloses an electromagnetic relay with auxiliary contacts, comprising a base and a contact system and magnetic circuit system disposed on the base. The contact system comprises a main contact unit and an auxiliary contact unit. The main contact unit and the auxiliary contact unit are configured to cooperate with the armature of the magnetic circuit system and to switch the contact on / off state by the rotational movement of the armature. The main contact unit and the auxiliary contact unit have the same contact on / off switching action. When the magnetic circuit system is energized and the armature rotates forward, the auxiliary contact unit first forms an engaged conductive state, followed by the main contact unit. When the magnetic circuit system is de-energized and the armature automatically resets and rotates in the reverse direction, the main contact unit first disconnects, followed by the auxiliary contact unit. In the electromagnetic relay of the present invention, when the magnetic circuit system is de-energized and the main contact unit is abnormally adhered, even if the armature partially rotates and resets, the auxiliary contact unit always maintains the same engaged conductive state as the main contact unit, thereby achieving reliable monitoring.

The utility model relates to a load switch structure used in an electricity meter, and belongs to the technical field of electronic control devices. The electromagnetic relay comprises a base, a cover plate, a static reed, a coil framework, yokes, a support frame, a magnetic steel combination, a movable contact system, a torsion push rod and a connecting hook, the base is matched with the cover plate, two ends of the coil framework are connected with the yokes, the magnetic steel combination is contacted with the yokes, the coil framework and the magnetic steel combination are fixed on the base, the static reed is arranged on the base, and the support frame is arranged on the support frame. The supporting frame is connected with the base, the movable contact system is matched with the static reed, and the movable contact system is movably arranged on the base; a magnetic steel push handle piece is arranged on the magnetic steel combination, one end of the connecting hook is matched with the torsion push rod, and the other end of the connecting hook is matched with the magnetic steel push handle piece. The magnetic circuit breaker is reasonable in structural design, safe and reliable, reduces magnetic circuit holding force, increases elastic stability of the elastic sheet, is convenient to install, and meets use requirements.

The embodiment of the invention provides a block chain equipment processing method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining a network state in a network topology composed of target block chain equipment, and synchronizing the network state to other block chain equipment of an Internet of Things system; aggregating the routing information of the plurality of block chain devices, and generating an optimal path based on the routing information; in the process of performing path scheduling on the target block chain equipment based on the optimal path, performing decentralized identity verification on the target block chain equipment; and when the verification of the target block chain equipment is successful, carrying out edge resource scheduling on the target block chain equipment. According to the embodiment of the invention, the construction of a dynamic routing-identity federation-resource scheduling collaborative framework is realized, and the global optimization is further realized.

The invention relates to a device for detecting a damage to a cell contact system of a cell unit of an electrical energy store. The device is designed to determine a time curve of the voltage across the cell unit during a charging or discharging process of the energy store, and to detect a damage to the cell contact system of the cell unit on the basis of the time curve of the voltage across the cell unit.