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211 results about "Contact system" patented technology

A contact center system is a computer-based system that provides call and contact routing for high-volume telephony transactions, with specialist answering “agent” stations and a sophisticated real-time contact management system.

Multi-source sensing fusion method and system for state evaluation of contact network compensation device

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.
Owner:LANZHOU JIAOTONG UNIV +1

Contact device, contact system and method for assembling the contact system

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).
Owner:TE CONNECTIVITY SOLUTIONS GMBH

Air volume control method for multiple air blowers connected in parallel

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.
Owner:贵州中航华强科技有限公司

Relay and electricity meter

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.
Owner:XIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD

Contact system and switchgear

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.
Owner:CHINT LOW VOLTAGE ELECTRICAL TECH CO LTD

Method and system for distributing contact pressure of movable and stationary contacts of a micro relay

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.
Owner:BEIJING YAHANG TIANJI IND&TRADE

A dynamic scheduling method for monitoring abnormal events based on an inter-vehicle communication system

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.
Owner:SHANGHAI UNIV

Parallel contact system for magnetic latching relay and magnetic latching relay

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.
Owner:长沙中坤电子科技有限责任公司

Operating mechanism of circuit breaker, quick tripping device, and circuit breaker

PCT designated stage expiredWO2024083052A9Protective switch operating/release mechanismsSwitches with electrothermal and electromagnetic releaseCrankControl theory
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.
Owner:CHINT LOW VOLTAGE ELECTRICAL TECH CO LTD

Emergency starting device operating mechanism

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.
Owner:SHENYANG SIWO ELECTRICAL APPLIANCE CO LTD

Switching device manual operation mechanism with power state indication

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.
Owner:NINGBO QILE ELECTRIC GRP

Contact system, contact unit and isolating switch

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.
Owner:CHINT LOW VOLTAGE ELECTRICAL TECH CO LTD

A double-break circuit breaker

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.
Owner:DELIXI ELECTRIC

Excitation integrated contactor

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.
Owner:XIAN ZHONGRONG ELECTRIC CO LTD

Switch

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.
Owner:CHANGSHU SWITCHGEAR MFG CO LTD (FORMER CHANGSHU SWITCHGEAR PLANT)

Moving contact system of switch

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.
Owner:CHANGSHU SWITCHGEAR MFG CO LTD (FORMER CHANGSHU SWITCHGEAR PLANT)

Arc extinguishing device and circuit breaker

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.
Owner:SHANGHAI LIANGXIN ELECTRICAL CO LTD +1

circuit breaker

The application relates to the field of low-voltage electrical apparatus, in particular to a circuit breaker which comprises a shell, a first circuit and a second circuit arranged in the shell respectively, and an operating member slidingly arranged in the shell; the first circuit comprises a first operating and contact system which comprises a first operating mechanism and a first moving contact head connected in drive, and a first static contact head matched with the first moving contact head; the second circuit comprises a second operating and contact system which comprises a second operating mechanism and a second moving contact head connected in drive, and a second static contact head matched with the second moving contact head; the operating member, the first operating and contact system and the second operating and contact system are sequentially arranged in one direction in the shell; the first operating mechanism is connected in drive with the second operating mechanism through a linkage; the circuit breaker has reasonable internal layout, good insulation and simple transmission paths of the two groups of operating mechanisms.
Owner:CHINT LOW VOLTAGE ELECTRICAL TECH CO LTD

Intelligent operation and maintenance system for high-speed railway overhead line system based on multi-source data fusion

The invention provides an intelligent operation and maintenance system for a high-speed railway overhead line system based on multi-source data fusion, belongs to the technical field of intelligent operation and maintenance of high-speed railways, and is suitable for scenes such as dropper arrangement optimization, tension detection, model-free robust control and low-noise structure design of the high-speed railway overhead line system. Accurate sensing, intelligent decision making and efficient operation and maintenance of the whole life cycle of the overhead line system can be achieved, technical positioning in the new-generation information technology field is met, locking state testing and self-adaptive adjustment are adopted, the tension measurement error is controlled within + / -1%, and the slippage problem is solved. The disturbance adaptive capacity is enhanced, the contact force standard deviation is reduced by 25% through model-free robust control, stable current collection is still kept under disturbance of the wind speed of 15 m / s, aerodynamic noise is reduced, and the A-weighted sound pressure level drop amplitude reaches 8.59 dB (A) when the wave-shaped cavity structure is 350 km / h.
Owner:四川铁道职业学院

Relay

The invention 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.
Owner:XIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD

A plug-in circuit breaker

The application provides an insertion type circuit breaker, which comprises an outer shell, a PCB circuit board, an MCU single-chip microcomputer, a transmission plate, a reset torsional spring, a static contact, a contact system, a first connecting rod, a micro switch and a solid-state switch; the transmission plate is located in the outer shell and is sleeved outside the shaft rod and can rotate around the shaft rod under the action of external force; the reset torsional spring is sleeved outside the shaft rod; the static contact is arranged in the outer shell and is located at the right side of the sliding groove; the contact system is installed in the outer shell and can make linear motion in the outer shell, so that the contact system is in contact with or separated from the static contact; the two ends of the first connecting rod are rotatably connected to the transmission plate and the contact system respectively; the micro switch is installed on the PCB circuit board and is linked with the contact system; and the solid-state switch is installed in the outer shell. The switching mechanism of the application is different from the mechanism of the traditional switch, does not have the locking buckle and the jump buckle of the traditional switch mechanism, has simple mechanism structure, has little or no wear and tear of the switching mechanism, has better mechanical life of the switch, and has more reliable performance of the whole mechanism.
Owner:GUIZHOU TAIYONG CHANGZHENG TECH CO LTD

Moving contact mounting structure of switch

A moving contact mounting structure of a switch belongs to the technical field of switches. The switch comprises a shell, a contact system is installed in the shell, the shell comprises a base and a bottom plate, the contact system comprises a moving contact and a static contact, the moving contact comprises a contact piece, a contact support, a wire outlet bar and a rotating shaft, the contact piece is installed on the contact support, the wire outlet bar is fixed to the base, and the wire outlet bar and the contact piece are in conductive connection through flexible connection. The moving contact is characterized in that the rotating shaft is in running fit with the base, one side, facing the rotating shaft, of the outgoing line bar is provided with a limiting part, and the limiting part is used for limiting the radial movement of the rotating shaft. The utility model has the advantages that the rotating shaft can be effectively prevented from moving during working, the breaking performance of the switch is improved, and the service life of the switch is prolonged.
Owner:CHANGSHU SWITCHGEAR MFG CO LTD (FORMER CHANGSHU SWITCHGEAR PLANT)

Contact system of dual-power automatic change-over switch

The invention discloses a contact system of a dual-power automatic change-over switch. The contact system comprises a shell, a driving shaft, a rotary pressing plate, a conductive seat, a moving contact, a load terminal, a first static contact and a second static contact, the driving shaft is rotationally installed on the shell, the rotating pressing plate fixedly sleeves the driving shaft, a connecting groove is formed in the front side of the conductive base, the middle of the moving contact is rotationally installed in the connecting groove through a rotating shaft, two first springs are connected between the moving contact and the rotating pressing plate, and the middle of the moving contact is of a circular structure. The upper and lower ends and the rear side of the circular structure are respectively electrically contacted with the upper and lower groove walls and the side wall of the connecting groove, and the load terminal is electrically contacted with the conductive seat. According to the contact system of the dual-power-supply automatic change-over switch, the moving contact is electrically contacted with the connecting groove of the conductive seat through the circular structure so as to realize conduction with the load terminal, a wire does not need to be additionally arranged, the structure is simplified, and the reliability is improved. Moreover, the pressing plate can be rotated to apply a pre-tightening force to the moving contact through the first spring, so that the moving contact is kept in close contact with the static contact.
Owner:SUZHOU FEITENG ELECTRIC APPLIANCE CO LTD

Relay and electricity meter

The utility model relates to a relay and an electric meter. The relay comprises a pushing system; the contact system comprises a static contact unit and a movable contact unit, the static contact unit comprises a static magnetizer, the movable contact unit comprises a movable spring and a movable magnetizer, the movable magnetizer and the movable spring are separately formed and fixedly connected, the movable magnetizer and the static magnetizer are oppositely arranged, and the movable magnetizer is connected with the pushing system; wherein the movable magnetizer is suitable for getting close to or getting away from the static magnetizer under the driving of the pushing system, the first end of the movable spring is suitable for getting close to or getting away from the static contact unit under the driving of the movable magnetizer, and the second end of the movable spring is fixed relative to the static contact unit. According to the invention, the movable magnetizer and the static magnetizer are adopted to realize an anti-short-circuit function, different from an anti-short-circuit structure formed by bending the reed body in the prior art, the production process is simpler and more convenient, and the material cost is lower.
Owner:XIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD

Switch

A switch belongs to the technical field of low-voltage apparatuses. Comprising a shell, an arc extinguish chamber and a contact system, the contact system and the arc extinguish chamber are contained in the shell, the arc extinguish chamber comprises a first grid piece set and a second grid piece set, the first grid piece set and the second grid piece set are connected in series, the first grid piece set and the second grid piece set are arranged side by side in the first direction, and the first grid piece set and the second grid piece set are arranged front and back in the second direction. The first direction is the width direction of the switch, and the second direction is the length direction of the switch. The switch has the advantages that the space of the switch is reasonably utilized, and wiring of the switch is facilitated.
Owner:CHANGSHU SWITCHGEAR MFG CO LTD (FORMER CHANGSHU SWITCHGEAR PLANT)

Multi-connected system, operation control method, control device and storage medium

The invention discloses a multi-split system, an operation control method, a control device and a storage medium, the multi-split system comprises a radiation heat exchange module and a wind disc module which are arranged in a room, and the method comprises the steps that when a start control signal and the target temperature of the room are received, the radiation heat exchange module is controlled to start to operate, and the internal environment temperature of the room is obtained; and when the difference value between the internal environment temperature and the target temperature is larger than a first preset value, the air disc module is controlled to start running. According to the embodiment, the temperature adjusting efficiency of the radiation air conditioner can be improved, the scene application rate is high, and the comfort of a multi-connected system can be improved.
Owner:FOSHAN SHUNDE MIDEA ELECTRONICS TECH CO LTD +1

A magnetic latching relay dedicated to self-resetting over / under voltage protector

The utility model discloses a self -recovery formula over -voltage protection ware special -purpose magnetic latching relay with better stability. Adopted technical scheme includes: base, contact system and electromagnetic system in the base, the electromagnetic system includes framework, the iron core in the framework, the armature of being connected to the both ends of iron core and the magnetic steel spare of being cooperated with armature, the contact system includes setting on the base static contact head support movable contact head support, riveting on static contact head support static contact head, riveting on movable contact head support spring piece and riveting on movable contact head support movable contact head.
Owner:HONGZHENG ELECTRIC CO LTD

Contact arc extinguishing structure of switch

A contact arc extinguishing structure of a switch belongs to the technical field of low-voltage apparatuses. Comprising an arc extinguish chamber and a contact system, the arc extinguish chamber comprises a pair of side walls, a plurality of grid sheets and a pair of gas generating parts, the grid sheets are arrayed between the pair of side walls, the gas generating parts are spaced to form an arc channel, the contact system comprises a moving contact, the moving contact comprises a long contact sheet and a short contact sheet, the long contact sheet extends into the arc channel, and the short contact sheet extends into the arc channel. The short contact piece is located on the outer side of the opening of the arc channel, the arc extinguish chamber further comprises a pair of matching surface bosses corresponding to the short contact piece, the matching surface bosses are matched with the swinging track of the short contact piece, a distance is kept between the pair of matching surface bosses and the head of the short contact piece, and the distance is smaller than 2 mm. As the matching surface boss which enables the end, facing the short contact piece, of the arc extinguish chamber is additionally arranged in the structure system of the arc extinguish chamber, a gap between the head of the short contact piece and the arc extinguish chamber can be greatly reduced through the matching surface boss, the amount of arc gas flowing into the head of the short contact piece is remarkably reduced, and breakdown at the short contact piece is effectively prevented.
Owner:CHANGSHU SWITCHGEAR MFG CO LTD (FORMER CHANGSHU SWITCHGEAR PLANT)

Arc resistance simulation verification method for de-excitation switch structure and operating characteristics and related device

PendingCN121881707AEffective guidance for breaking capacity verificationOvercoming the problem of insufficient simulation accuracyGeometric CADDesign optimisation/simulationMathematical modelDynamic equation
The invention discloses an arc resistance simulation verification method for a field suppression switch structure and operating characteristics, an arc resistance simulation verification device for the field suppression switch structure and operating characteristics, arc resistance simulation verification equipment and a computer readable storage medium. The method comprises the following steps: firstly, establishing a three-dimensional geometric model comprising an arc extinguish chamber, a contact system and an operating mechanism; then, constructing a mechanical structure dynamic simulation model to obtain the motion characteristics of the moving contact, and finally, establishing a multi-physical field coupling mathematical model based on a fluid dynamic equation, an electromagnetic field equation and a heat transfer equation to realize numerical simulation of the arc breaking process of the field suppression switch. According to the method, the flowing, electromagnetic and heat transfer characteristics of the arc are comprehensively considered, the whole process from generation to extinguishing of the arc can be completely simulated, and an effective simulation analysis means is provided for design optimization, performance evaluation and breaking capacity verification of the field suppression switch.
Owner:MAINTENANCE CO STATE GRID QINGHAI ELECTRIC POWER +2

Railway four-electricity intelligent construction monitoring system based on multi-source data fusion

The invention relates to the technical field of railway engineering construction, in particular to a railway four-electricity intelligent construction monitoring system based on multi-source data fusion, which comprises a division evaluation acquisition unit, a parameter calculation and mapping unit, a performance pre-judgment and strategy adjustment unit and a static parameter adjustment unit. Collecting static parameters of each measuring point, inputting a contact suspension dynamic performance prediction model, outputting average elasticity and maximum elasticity difference of a unit section, comparing with a standard to judge whether the dynamic performance reaches the standard or not, if not, generating a contact line target static parameter optimization scheme according to a model sensitivity analysis result, and performing closed-loop adjustment until the dynamic performance reaches the standard. The system realizes static and dynamic parameter association pre-judgment and accurate adjustment, is suitable for railway contact network construction monitoring, and improves the construction quality and efficiency.
Owner:TAIYUAN UNIVERSITY OF TECHNOLOGY