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336results about "Contacts enclosures/screens" patented technology
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Relay
ActiveCN223308923UElectromagnetic relay detailsContacts enclosures/screensStructural engineeringContact system
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.
Owner:XIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD
Relay
ActiveCN223245503UElectromagnetic relay detailsContacts enclosures/screensStructural engineeringMechanical engineering
The utility model relates to the technical field of electronic control devices, in particular to a relay, which comprises a contact structure, an insulating cover and a frame structure, the contact structure comprises a plurality of static contacts and a movable contact piece, one end of each static contact and the movable contact piece are accommodated in the insulating cover, and two ends of the movable contact piece can be contacted with or disconnected from the static contacts; a filling layer is arranged between the frame structure and the insulating cover, and the frame structure is in indirect contact with the circumferential side wall of the insulating cover through the filling layer. A filling layer is arranged between a frame structure and an insulating cover, the space formed between the frame structure and the circumferential side wall of the insulating cover is filled with the filling layer, the frame structure makes contact with the circumferential side wall of the insulating cover through the filling layer, and the filling layer is used for absorbing the dimensional tolerance of the insulating cover and the frame structure. The gap between the insulation cover and the frame structure is filled, the filling layer and the frame structure jointly form a protection structure with higher strength, it is guaranteed that the protection structure is completely attached to the circumferential side wall of the insulation cover, and the safety performance is improved.
Owner:XIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD
Relay
ActiveCN223321200UElectromagnetic relay detailsContacts enclosures/screensStructural engineeringMechanical engineering
The utility model relates to the technical field of electronic control devices, in particular to a relay, which comprises a contact structure, an insulating cover and a protective structure, the contact structure comprises a plurality of static contacts and a movable contact piece, one ends of the plurality of static contacts and the movable contact piece are accommodated in the insulating cover, and two ends of the movable contact piece can be contacted with or disconnected from the static contacts; the protection structure is located outside the insulation cover, at least part of the protection structure is arranged on the circumferential side wall of the insulation cover, at least part of the protection structure can generate elastic deformation and abut against the circumferential side wall of the insulation cover so as to apply pre-pressure towards an inner cavity of the insulation cover to the insulation cover, and the pre-pressure can counteract part of outward impact force. Meanwhile, the insulation cover is limited to be opened outwards, the insulation cover is effectively protected, particularly the weak circumferential side wall of the insulation cover can be protected, the structural strength of the insulation cover is enhanced, and the safety performance is improved.
Owner:XIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD
Exhaust condensation recovery device
PendingUS20250003669A1Emergency casingsMachines using electric/magnetic effectsWorking fluidWaste gas
An exhaust condensation recovery device for solving an issue of difficulties in removing a gaseous working fluid diffused in an outer hood. An exhaust condensation recovery device includes a housing, including a gas inflow portion, a liquid inflow portion and a gas outflow portion, the housing including therein an accommodating chamber, wherein a liquid collection zone is formed below accommodating chamber, and the liquid outflow portion is in communication with the liquid collection zone; and a cooling module, forming a condensation channel in the accommodating chamber, wherein the condensation channel is located above the liquid collection zone, and two ends of the condensation channel are respectively in communication with the gas inflow portion and the gas outflow portion.
Owner:WE SOLUTIONS TECHNOLOGY CO LTD
Isolation switch moving contact, contact base assembly and three-position switch
PendingCN119252701Aavoid damagereduce manufacturing costContact surface shape/structureContacts enclosures/screensStructural engineeringArc extinction
The invention relates to the field of high-voltage air circuit breaker parts without arc extinguishing or arc preventing devices, in particular to an isolating switch moving contact, a contact base assembly and a three-position switch. The three-position switch comprises a contact and contact seat assembly, the contact and contact seat assembly comprises an isolating switch moving contact, the isolating switch moving contact comprises a moving contact body, guide protection heads are arranged at the two ends of the moving contact body respectively, and the diameter of each guide protection head is larger than that of the moving contact body. One end of the guide protection head, which is deviated from the moving contact body, is provided with a plug-in guide surface, and the plug-in guide surface is used for being matched with an inner hole opening of a jack of the isolation static contact or the grounding static contact; and an avoiding groove corresponding to the guide groove is formed in the peripheral surface of the guide protection head and corresponds to the end part of the guide block. The isolating switch moving contact can solve the problems that an existing isolating switch moving contact is damaged due to abrasion in use, and the manufacturing cost is high.
Owner:HENAN PINGGAO GENERAL ELECTRIC CO LTD +1
Self-adaptive insulating shield base of ZW20 type circuit breaker and protection piece of self-adaptive insulating shield base
ActiveCN222126306UThere is no case of insufficient coverageenough safe distanceContacts enclosures/screensInsulating bodiesStructural engineeringCircuit breaker
Owner:SHANDONG YUNHAO INTELLIGENT TECH CO LTD
Circuit breaker and ring main unit
ActiveCN222507482UImprove insulation performanceImprove reliabilitySubstation/switching arrangement casingsContacts enclosures/screensCrankControl theory
The utility model provides a circuit breaker and a ring main unit, the circuit breaker comprises a pole body, a moving end shielding seat, a moving conductive rod, a transmission crank arm, an insulation pull rod and a crank arm shaft, the moving end of the pole body is provided with the moving end shielding seat, two convex columns are formed on the moving end shielding seat, and the two convex columns are respectively provided with a first connecting hole; one end of the movable conducting rod passes through the bottom of the movable end shielding seat and extends into the vacuum arc-extinguishing chamber of the pole body; the transmission crank arm comprises a middle part, a first end and a second end, the first end and the second end are located at the two ends of the middle part, the first end of the transmission crank arm is in transmission connection with the other end of the movable conducting rod, and the insulation pull rod is connected with the second end of the transmission crank arm; the parts, extending to the outer side of the transmission crank arm, of the two axial ends of the crank arm shaft are inserted into the two first connecting holes of the movable end shielding base through the connecting pieces to be locked, so that the situation that the consistency of the pole body is damaged due to the fact that holes are formed in the pole body can be avoided, and the insulation performance and reliability of the circuit breaker are improved.
Owner:XIAMEN HUADIAN SWITCHGEAR
Switching device with at least one movable contact, at least one auxiliary contact, at least one spring contact and a contact plate
ActiveUS12451312B2Electromagnetic relay detailsContacts enclosures/screensMechanical engineeringPhysics
In an embodiment a switching device includes at least two fixed contacts and one movable contact in a switching chamber and at least two auxiliary contacts, two spring contacts and a contact plate in the switching chamber, wherein each of the spring contacts contacts one of the auxiliary contacts with a first contact region and has a second contact region, wherein the contact plate is movable together with the movable contact, and wherein the contact plate is configured to contact the second contact regions of the spring contacts in a first switching state of the switching device and is configured to be arranged at a distance from the second contact regions of the spring contacts in a second switching state.
Owner:TDK ELECTRONICS AG
Outdoor high-voltage inverted AC isolation switch
ActiveCN119132870AGuaranteed to worklower the altitudeContact driving mechanismsContacts enclosures/screensTransformerStructural engineering
The invention relates to an outdoor high-voltage inverted alternating-current isolating switch which comprises an isolating switch unit, the isolating switch unit comprises three isolating switch bodies, and each isolating switch body comprises a base, an insulator column, an interpolar pull rod, a wire holder, a contact side conductive arm, a contact finger side conductive arm, a contact and a contact finger. The contact side conductive arm and the contact finger side conductive arm swing under the pulling of the inter-electrode pull rod, so that the opening and closing of the contact and the contact finger are realized; two adjacent isolating switch main bodies are connected through an interphase pull rod to realize synchronous action, and the isolating switch main body positioned on the outer side is also connected with a main knife pull rod which is horizontally arranged outwards; and the operating unit is used for driving the isolating switch unit to act. According to the isolation switch provided by the invention, the isolation switch with an inverted design is adopted to be matched with a transformer substation, the isolation switch can be installed by utilizing the lower space of the cross beam of the power transmission tower, meanwhile, the normal work of the isolation switch can be ensured, and the height of the installed isolation switch is greatly reduced.
Owner:JIANGSU RUGAO HIGH VOLTAGE ELECTRIC APP
Contact structure for an on-load tap changer, on-load tap changer and method for producing a contact structure
A contact structure (10) for an on-load tap changer (100) is provided, wherein the contact structure (10) is formed in one-piece. The contact structure (10) comprises a dense part (4) and at least one hollow part (2, 2A, 2B) arranged next to the dense part (4). The contact structure (10) comprises at least one shielding area (3, 3A, 3B), wherein at least one shielding area (3, 3A, 3B) is arranged next to the at least one hollow part (2, 2A, 2B). Moreover, an on-load tap changer (100) comprising at least one contact structure (10) and a method for producing a contact structure (10) are provided.
Owner:HITACHI ENERGY LTD
Static contact assembly, three-position switch, gas insulated switchgear and manufacturing method of three-position switch
The invention provides a static contact assembly, and relates to the technical field of switch equipment. The static contact assembly comprises an insulating pouring body which is integrally formed by pouring, the insulating pouring body comprises a base, and a conductive contact seat, an isolation contact seat and a grounding contact seat which are arranged on the base, and isolation fractures are arranged between the top ends of the contact seats. A conductive static contact is fixedly sealed on the conductive contact seat, an isolation static contact is fixedly sealed on the isolation contact seat, a grounding static contact is fixedly sealed on the grounding contact seat, and the conductive static contact, the isolation static contact and the grounding static contact are coaxial. The invention also provides a three-position switch. The three-position switch comprises the static contact assembly. The invention also provides an inflatable cabinet which comprises the three-position switch. The invention further provides a manufacturing method of the three-position switch, the coaxiality of the conductive static contact, the isolation static contact and the grounding static contact is improved through integrated pouring, isolation fractures are reserved among the three static contacts, and the centering performance of the three static contacts is improved on the basis that the reliability of the three-position switch is guaranteed.
Owner:TIANJIN PINGGAO INTELLIGENT ELECTRIC +1
Sealed switch cabinet isolation circuit breaker grounding device
PendingCN120527183AEarthing arrangementsSubstation/switching arrangement casingsAirbagControl theory
The invention provides a sealing switch cabinet isolation circuit breaker grounding device, and belongs to the technical field of grounding devices, the sealing switch cabinet isolation circuit breaker grounding device comprises a switch cabinet, and an isolation circuit breaker grounding body, an interlocking mechanism, a circuit breaker operation mechanism and a grounding operation mechanism arranged in the switch cabinet, and also comprises a buffer arc extinguishing assembly and a protection cleaning assembly; blowing and sucking actions of the air bag during switching-on and switching-off are matched with cleaning actions of the cleaning block, the air bag blows out airflow to cut off an arc path during switching-on, and the cleaning block cleans in advance to reduce the possibility of arc generation. During opening, the air bag sucks air and is lengthened to extinguish the arc, the cleaning block cleans again to prevent the arc from reignition, the arc extinguishing capability is greatly improved, and the contact ablation and equipment damage risks are reduced; the buffering function of the arc-shaped block and the air bag and the buffering function of the base plate form a multi-stage buffering mechanism, and abrasion of the contact and equipment parts is reduced; the blowing and suction treatment of the air bag and the dual cleaning effect of the cleaning block enable the contact area of the contact to be cleaner, and the contact resistance is effectively reduced.
Owner:XUZHOU YILE ELECTRICAL TECH CO LTD
High-voltage direct-current deicing isolating switch
ActiveCN224232589UContact surface shape/structureContact driving mechanismsStructural engineeringCorrosion prevention
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.
Owner:NHVS DISCONNECTOR
SUSPENSION SAFETY DEVICE
Owner:GIGAVAC INC
Durable composite contact
ActiveCN224082336UWill not shakeNo deviationContact surface shape/structureContacts enclosures/screensContact layerScrew thread
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.
Owner:NINGBO YILI ELECTRONIC CO LTD
Electromagnetic relay
An electromagnetic relay (1) comprises a sealed housing (2), a fixed contact (31), a movable element (4) having a movable contact (41), a shaft (5), a movable core (61), a fixed core (62), a return spring (63), an electromagnetic coil (64), and a sleeve (7). The shaft (5) is slidably inserted in a through-hole (621) formed in the fixed core (62). The sleeve (7) has a support element (71) that supports the movable core (61) in order to define a position of the movable core (61) relative to the fixed core (62) when no magnetic attraction acts between them. At a front end of the sleeve (7) a position adjustment part (11) is formed for adjusting a position relationship between the stationary core (62) and the support part (71) during the direct or indirect fixing of the sleeve (7) to the stationary core (62).
Owner:DENSO CORP +1
Moving contact structure, contact system and isolating switch
PendingCN120341073AHigh-tension/heavy-dress switchesAir-break switchesLow voltageElectrical connection
The invention discloses a moving contact structure, a contact system and an isolating switch, and relates to the field of low-voltage electric appliances. The invention provides a moving contact structure. The moving contact structure comprises a contact support, a first contact and a second contact, wherein the first contact and the second contact are coaxially arranged on the contact support side by side; the first contact can be electrically connected with a static contact of the contact system in a clapping manner, and the second contact can be electrically connected with the static contact of the contact system in a clamping manner; or, the first contact can be electrically connected with the static contact of the contact system in a clamping manner, and the second contact can be electrically connected with the static contact of the contact system in a clapping manner. According to the moving contact structure obtained by the above design, the short-time withstand current performance can be improved through the first contact or the second contact which is connected in a clamping manner when the arc voltage is increased, so that the moving contact structure is prevented from being burnt, the reliability of the moving contact structure is improved, and the service life of the moving contact structure is prolonged.
Owner:SHANGHAI LIANGXIN ELECTRICAL CO LTD
Isolation contact
ActiveCN222546148Ureduce field strengthReduce partial dischargeContacts enclosures/screensAir-break switch detailsElectrical conductorField intensity
The utility model relates to the field of high-voltage electrical equipment, and provides an isolating contact, which comprises a moving contact, a shielding cover and an insulating cylinder, the shielding cover and the insulating cylinder are sleeved outside the moving contact, a screw rod mechanism is arranged in the moving contact, a conductor with high voltage is connected outside the moving contact, the shielding cover is arranged in the insulating cylinder, and the insulating cylinder is arranged in the insulating cylinder. The shielding case comprises a first shielding case, a second shielding case and a third shielding case which are arranged at intervals; the first shielding case is connected with the conductor in a high-voltage mode, the lead screw mechanism drives the moving contact to move towards or away from the second shielding case and the third shielding case, so that the moving contact is connected with the second shielding case and the third shielding case in a high-voltage mode, the field intensity in the air cavity is effectively reduced, partial discharge is reduced, and the compression strength is improved. The gap between the second shielding cover and the first shielding cover and the gap between the second shielding cover and the third shielding cover form a shielding fracture, the function of circuit breaking is achieved, and the electric field can be effectively shielded by setting the reasonable fracture length.
Owner:I SEE R&D INT CO LTD
Wire clamp protective cover for pole-mounted circuit breaker and protective piece thereof
ActiveCN222126307UThere is no case of insufficient coverageenough safe distanceContacts enclosures/screensInsulating bodiesStructural engineeringCircuit breaker
The wire clamp shield comprises a left wire clamp cover and a right wire clamp cover, one end of the left wire clamp cover and one end of the right wire clamp cover are connected through a hinge, the other end of the left wire clamp cover and the other end of the right wire clamp cover are connected through a buckle, and the left wire clamp cover and the right wire clamp cover are in butt joint to form a closed protection space. The front end of the protection space is provided with a front connecting port, the rear end of the protection space is provided with a base connecting port, and the protection space is further provided with a glue injection port. According to the utility model, through the arrangement of the sealing structure and the buckle, the sealing performance of connection between the left wire clamp cover and the right wire clamp cover can be doubly guaranteed, so that a closed container is provided for injection of insulating materials, the structure is simple, one-hand operation can be realized, the working efficiency is improved, the applicability is high, and waterproof and dustproof effects can be achieved.
Owner:SHANDONG YUNHAO INTELLIGENT TECH CO LTD
Moving contact system of switch
ActiveCN223898177UContact surface shape/structureContacts enclosures/screensLow voltageClassical mechanics
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)
Electromagnetic relay
To provide an electromagnetic relay that can stably transmit high-frequency and low-frequency signals without degrading the isolation characteristics of high-frequency signals.SOLUTION: In an electromagnetic relay 1, a printed circuit board 3 includes first and third transmission lines 24A, 24B, second and fourth transmission lines 25A, 25B, and a first ground plate 23. First and second movable contact pieces 6A, 6B are connected to the first transmission line 24A and the third transmission line 24B, respectively. The first and second movable contact pieces 6A, 6B move between a connected position and a disconnected position. The shield plate 7 extends from the first ground plate 23 above the second and fourth transmission lines 25A, 25B. An insulating layer 107 is provided between the first ground plate 23 and the first and second movable contact pieces 6A, 6B.SELECTED DRAWING: Figure 7B
Owner:OMRON CORP
Electromagnetic relay
PendingCN120266243AElectromagnetic relay detailsContacts enclosures/screensMechanical engineeringContact group
An electromagnetic relay includes a contact device and a drive device. The contact device includes a plurality of contact groups, each of which includes a first fixed terminal including a first fixed contact; a second fixed terminal including a second fixed contact separated from the first fixed contact in the first direction; and a movable contact piece. The movable contact piece includes a first movable contact point opposed to the first fixed contact point and a second movable contact point opposed to the second fixed contact point. The drive device moves the movable contact piece. The first fixed terminal comprises a first conductive part, a second conductive part and a third conductive part. The first conductive portion includes a first fixed contact. The second conductive portion is connected to the first conductive portion, and at least a portion of the second conductive portion is disposed laterally of the movable contact piece in the first direction. The third conductive portion is connected to the second conductive portion and extends in a direction from the first movable contact to the second movable contact.
Owner:OMRON CORP
Connecting structure between lead-out pins of auxiliary stationary contacts and yoke plate of DC relay
ActiveUS12482621B2Electromagnetic relay detailsContacts enclosures/screensStructural engineeringMechanical engineering
A connecting structure between lead-out pins of auxiliary stationary contacts and a yoke plate of a DC relay, includes a yoke plate and a plurality of auxiliary stationary contact lead-out terminal assemblies mounted on the yoke plate; each auxiliary stationary contact lead-out terminal assembly includes a lead-out pins, a glass material body and a kovar alloy part; the lead-out terminal, the glass material body and the kovar alloy part are connected into a whole by sintering, and the lead-out terminal and the kovar alloy part are insulated from each other by glass material; the auxiliary stationary contact lead-out terminal assembly is welded and fixed to the yoke plate through the kovar alloy part.
Owner:XIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD
Temple switch for electric vehicle
The utility model relates to a temple switch for an electric vehicle, and relates to the technical field of vehicle accessories. A temple switch for an electric vehicle comprises a shell and a shell cover, the shell is connected with a foot support of the electric vehicle, the shell cover covers the shell, a control element used for controlling opening and closing of the vehicle is installed on the shell, an abutting block is fixed to the side, facing the interior of the shell, of the shell cover, and the shell cover rotates relative to the shell. The abutting block rotates to abut against or break away from the control element so that the control element can control starting and stopping of the vehicle. The temple switch has the effect of high circuit on-off control precision.
Owner:NINGBO XINTAI ELECTRIC TECH CO LTD
High-reliability isolating switch contact system
PendingCN119208062AGuaranteed contact pressureSmooth and reliable contactContact surface shape/structureContacts enclosures/screensClassical mechanicsMechanical engineering
The invention relates to a high-reliability isolating switch contact system which comprises a static contact, a contact frame and two moving contacts, the two moving contacts are arranged in two mounting holes of the contact frame in parallel and are pressed by two elastic pieces respectively, a contact space matched with the static contact is formed between the two ends of the two moving contacts, and the two ends of the two moving contacts are connected with the two elastic pieces. The two ends of the two elastic sheets are respectively provided with two elastic abutting arms which are symmetrically distributed and extend out of the mounting hole, the two ends of the moving contact are respectively provided with positioning grooves matched with the two elastic abutting arms, and the tail portions of the two elastic abutting arms are provided with cambered surface abutting portions abutting against the interiors of the positioning grooves. The switch has the advantages of being stable and reliable in performance, good in heat dissipation performance, reliable in closing, long in service life and high in reliability.
Owner:WENZHOU GELE ELECTRIC APPLIANCES CO LTD
Novel terminal wiring protection structure of contactor
ActiveCN222637162Uavoid short circuitIncrease creepage distanceElectromagnetic relay detailsContacts enclosures/screensStructural engineeringContactor
The utility model discloses a novel terminal wiring protection structure of a contactor, which relates to the technical field of terminal protection and comprises an upper cover, an upper shell is arranged at the bottom of the upper cover, a connecting seat is arranged at the bottom of the upper shell, a mounting base is arranged at the bottom of the connecting seat, and a terminal positioning component is arranged on the side surface of the upper shell. According to the utility model, the terminal cover and the terminal fixing seat are arranged to realize fixation and protection of the terminal, the fixing bolt and the connecting nut are arranged to realize positioning of the terminal and connection of the terminal and the connecting line, and the fixing bolt is matched with the connecting nut to realize locking, so that the situation that the use stability is influenced due to sliding in the use process is prevented, and the service life of the terminal is prolonged. And the side surface of the terminal cover is provided with the convex block, so that the creepage distance and the electric clearance between the terminals are improved, the electric clearance and the creepage distance are relatively large, the short circuit between the wiring terminals is effectively prevented, and the wiring safety is greatly improved.
Owner:LS INDAL SYST WUXI
High-voltage metal-enclosed switchgear
PendingCN121688626ASwitchgear with horizontal withdrawalBus-bar/wiring layoutsSwitchgearElectric cables
The invention discloses a high-voltage metal-enclosed switchgear which comprises a cabinet body made of metal plates, the interior of the cabinet body is divided into a bus chamber for placing buses, a circuit breaker chamber for placing circuit breakers and a cable chamber for placing cables from top to bottom, and a vertical public pressure relief channel is arranged on the right side of the cabinet body. The center line of each corresponding upper contact box and the center line of each corresponding lower contact box are located on the same vertical axis, an upper contact arm and a lower contact arm of the circuit breaker are also located on the vertical axis and stretch out and draw back up and down, and the upper contact arm and the lower contact arm penetrate through the upper valve and the lower valve respectively. And the upper static contact and the lower static contact are respectively connected to form a conductive loop. According to the invention, the size is greatly reduced, the manufacturing cost is reduced, the current-carrying capability is improved, the discharge of the contact arm to the ground and air is effectively prevented, and the safety is better ensured.
Owner:BEIJING DONGFANG YULI ELECTRICAL TECH CO LTD
High voltage circuit-breaker
PendingUS20260120987A1High-tension/heavy-dress switchesAir-break switchesElectrical connectionCircuit breaker
The disclosed circuit-breaker for high-voltage applications includes at least one making and breaking unit having a first contact and a second contact for forming an electrically conductive connection, wherein at least one of the contacts is movable along an axially extending switching axis of the circuit-breaker between a closed position and an open position, and a first contact housing having a guiding passage surrounding and forming with the first contact a circumferential gap, which first contact housing has at least one recess surrounding the first contact, which at least one recess is open towards the first contact by means of a recess opening facing the first contact, wherein an extension of the recess opening along the switching axis is shorter than an extension of the at least one recess along the switching axis and / or two or more the recesses are arranged axially adjacent to one another.
Owner:HITACHI ENERGY LTD
Reed switch and method for manufacturing the reed switch
A novel reed switch is disclosed. The reed switch features a three-part blade, with the web portion of each blade bent relative to the conductor portion, and the bend angle is adjustable. When the blade is sealed within a glass housing, the gap between adjacent contacts of each blade does not change as the molten glass of the housing cools and hardens, ensuring reliable pull-in sensitivity of the reed switch during manufacturing. The bend between the web portion and the conductor portion may be simpler or more complex.
Owner:LITTELFUSE INC
Low-voltage annular moving and static contact assembly convenient to plug and unplug
PendingCN119446804Aavoid fireContacts enclosures/screensEmergency protective arrangements for limiting excess voltage/currentStructural engineeringPiston rod
The invention belongs to the technical field of low-voltage power distribution, and discloses a low-voltage annular moving and static contact assembly convenient to plug and unplug, which comprises a moving contact, a first housing and a second housing, a static contact is arranged at the left end of the moving contact, annular seats are fixed at the outer sides of a first support column and a second support column, buffer assemblies are fixed at the upper ends of the annular seats, and the buffer assemblies are fixed at the lower ends of the first support column and the second support column. A piston rod is fixed to the upper end of the supporting plate, a first air pipe is fixed to the upper end of the first housing, a second air pipe is fixed to the upper end of the second housing, and the inner wall of the first air pipe is in sealing fit with the outer wall of the second air pipe. The air in the air pipe can be compressed by utilizing kinetic energy generated when the drawer is inserted, the positions of the movable and static contacts can be limited, the movable and static contacts are prevented from shaking up and down in the buffer assembly, the compressed air can be released to contact points of the movable and static contacts at the moment when the movable and static contacts are in contact connection, and therefore electric arcs are lengthened and weakened to prevent fire disasters caused by the electric arcs.
Owner:SHANGHAI NEW UNION ELECTRIC