17 results about "Contact group" patented technology

The present patent application relates to the field of electrical engineering and power engineering and can be used for the timely emergency shutdown of electrical equipment. The invention relates to a fire-extinguishing device having disposed therein a module (1) which contains an aerosol-forming or gas-forming composition, and comprising an electrical igniter (7) of said module (1) and a heat-sensitive trigger device (4), which are connected to one another in series by conductors, wherein the device further comprises: a contact group (10) for triggering, over conductors by means of an external signal, the electrical igniter (7) of the module, or for supplying a trigger voltage to the heat-sensitive trigger device (4) and the electrical igniter (7) of the module; an activation sensor (11), and a button (18) for manually activating the electrical igniter (7) of the module (1); the activation sensor (11) is connected by conductors (17) to the contact group (10); and the button (18) for manually activating the electrical igniter (7) of the module is connected by conductors to the electrical igniter (7) of the module. The technical result consists in increasing the timeliness of an initial fire-extinguishing action and more efficiently impeding the spread of fire in an enclosed space such as, in particular, an electrical enclosure, while simultaneously issuing a signal to trigger such fire-extinguishing devices, or issuing an information signal to emergency control panels.

This application discloses a mechanical characteristic testing system for railway signal relays, comprising a turntable device configured to rotate the railway signal relay base to a first testing station and a second testing station; a contact pressure testing mechanism and an industrial vision camera are adapted at the first testing station to measure the contact pressure of the contact group; a gap testing mechanism is adapted at the second testing station to detect the gap of the contact group, and a contact alignment testing mechanism is adapted to detect the contact alignment; this invention, based on key equipment such as an automated motion mechanism, a line laser profile scanner, a contact pressure sensor, and a railway signal relay base, constructs a testing station for the mechanical characteristic parameters of railway signal relays, making the three testing mechanisms independent and non-interfering with each other, and making the system design more compact under the premise that the mechanisms do not interfere with each other.

The application discloses a modular combined multi-position isolating switch, wherein an operating handle is fixed to one end of a main rotating shaft through a handle rod, a movable contact cam is installed on a shaft body of the main rotating shaft, a locking pin respectively locks the operating handle in different rotating positions, a control handle ball can release the locking of the operating handle by the locking pin, a contact group is installed in a switch frame, and the movable contact cam can drive the contact group in a corresponding position to adjust a contact state of the contact group during rotation, a preset contact group corresponds to an angle of the movable contact cam relative to the main rotating shaft, and a combination of the contact state of the contact group under the driving of the movable contact cam meets a preset switch state of a current rotating position. Through the technical scheme of the application, circuit switching of multiple rotating position states is realized, the volume of the isolating switch is greatly reduced, complicated structure systems are modularized and integrated, and the operability and maintainability of the isolating switch are greatly improved.

This utility model relates to the field of low-voltage electrical appliances, specifically to a switching device. Its switching unit includes at least two sets of switching modules arranged side-by-side along a second direction d2. Each switching module includes a moving contact mechanism and a stationary contact group. The first and second stationary contacts of the stationary contact group are arranged side-by-side along a third direction d3. Each moving contact mechanism is movable as a whole along a first direction d1. Its electromagnetic system includes a magnetizing component and an armature arranged sequentially with the switching unit along the third direction d3. The magnetizing component includes a yoke and a coil assembly. The armature drives each moving contact mechanism to move as a whole, thereby closing and opening with the corresponding stationary contact group. The first direction d1, the second direction d2, and the third direction d3 are perpendicular to each other. The switching device has a reasonable layout and compact structure.

The application discloses a contact mechanism and a transfer switch, which comprises a moving contact assembly and a static contact group, the moving contact assembly moves along a straight line, the moving contact assembly comprises a contact support and a moving contact arranged on the contact support, a contact spring is arranged between the moving contact and the contact support, the contact spring is elastically deformed when the moving contact and the contact support relatively move, and an energy storage structure is arranged at least on one side of the moving contact assembly, the energy storage structure comprises an energy storage piece, during closing movement of the moving contact assembly, the moving contact is first locked and stopped from closing movement by the energy storage piece, the contact support continues to move to trigger the energy storage piece to move, so that the energy storage piece is unlocked from the moving contact assembly, and the moving contact assembly after being unlocked from the energy storage piece is rapidly closed to a position by the contact spring. In the application, the closing speed of the contact mechanism is improved by arranging the energy storage structure, and the service life of the contact mechanism is improved.

The application discloses an electromagnetic relay with reduced occupied space, comprising a base, a magnetic circuit part and a contact part, the contact part comprising at least one normally open contact group and at least one normally closed contact group, the normally open contact group and the normally closed contact group each comprising a dynamic spring part and a static spring part matched with each other, the dynamic spring part comprising a dynamic spring sheet and a dynamic contact; the normally open contact group and the normally closed contact group are arranged along a horizontal first direction on the base, and the free end of each dynamic spring sheet is respectively provided with a dynamic contact; the free end of the dynamic spring sheet of the normally open contact group and the free end of the dynamic spring sheet of the normally closed contact group are towards different sides of a second direction perpendicular to the first direction, and the dynamic spring sheet of the normally open contact group is inclined to extend to the direction of disconnecting the contact, and / or the dynamic spring sheet of the normally closed contact group is inclined to extend to the direction of closing the contact. The contact groups are more compact, and the occupied space of the product in the first direction is reduced.

This utility model discloses a main clutch switch structure for harvesting machinery, including two contact groups. Each contact group includes a movable contact and a fixed contact. The fixed contacts are all fixed on the same insulating component. One set of fixed contacts is connected in series in the engine starting circuit to conduct when the clutch is disengaged, allowing starting. The other set of fixed contacts is connected to the input terminal of the vehicle display screen to output an alarm signal when the clutch is engaged. The two sets of movable contacts are mounted on the same movable plate, with the movable contacts and fixed contacts arranged opposite to each other. The movable plate moves through a movable mechanism.

The application relates to the technical field of electronic devices, and particularly discloses a change-over switch. The switch comprises an output module, a contact module and an electromagnetic module; the output module comprises a shell and a contact group, and the contact group comprises two upper static contact parts and two lower static contact parts; the contact module comprises a push rod and a contact piece group, the contact piece group comprises a first upper armature, a movable contact piece and a first lower armature which are movably arranged on the push rod, the movable contact piece is provided with a second upper armature, the shell is provided with a second lower armature, the contact module has an open state in which the movable contact piece is in contact with the two upper static contact parts and a closed state in which the movable contact piece is in contact with the two lower static contact parts, in the open state, a gap exists between the first upper armature and the first lower armature, in the closed state, the first upper armature is in contact with the first lower armature, and the second upper armature and the second lower armature which are arranged at intervals form a short-circuit ring; and the electromagnetic module is used for driving the push rod. The switch has the advantages of anti-short-circuit capability and reduced power consumption through structural improvement.

This invention discloses an electromagnet resistance and magnetic force testing device and method, including a base, an energizing component, an electric cylinder component, a force measuring component, and a support platform; a receiving space is formed on the support platform; the energizing component includes a clamping component, a cylinder group, a first contact group, a second contact group, and a third contact group; the clamping component can clamp onto an attracting coil; the cylinder group drives the first contact group and the second contact group to electrically connect, directly obtaining the resistance value; the cylinder group also drives the first contact group and the third contact group to electrically connect, supplying power to the electromagnet; the electric cylinder component is located directly above the support platform, and the force measuring component is disposed on the output end of the electric cylinder component, coaxially arranged with the armature; the force measuring component includes a pressure sensor and a pressure sensor probe. The support platform vertically confines the electromagnet within it, ensuring the coaxiality of the armature and the pressure sensor probe; during testing, the magnetic force of the electromagnet can be obtained by pressing the armature, eliminating the influence of gravity and improving the effectiveness and accuracy of the test results.

The utility model discloses a kind of contact structure and air quick switch, contact structure includes: static contact group and moving contact group, static contact group includes at least one static contact; Moving contact group includes the moving contact that is oppositely arranged with static contact and can be connected with static contact or break, static contact group further includes mounting bracket and elastic element, one end of static contact is fixedly connected in mounting bracket, the other end of static contact is set as the contact end that can swing along the movement direction of moving contact;Elastic element is arranged between static contact and mounting bracket, for applying elastic force to static contact.The elastic force applied to static contact by elastic element of the utility model can effectively ensure the pressure between contact, ensure that moving contact and static contact always maintain good contact state, greatly improve the reliability of contact, while static contact and moving contact are fixed in position without adjusting position, reduce production difficulty, improve production efficiency.

The application discloses a change-over switch, which comprises a shell and a switch pole, the switch pole comprises a rotating shaft and two sets of contact mechanisms, in a first direction, the rotating shaft is rotatably arranged between the two sets of contact mechanisms, each set of contact mechanisms comprises a static contact group and a dynamic contact assembly, the static contact group comprises two static contacts which are arranged in a second direction, the dynamic contact assembly comprises a contact support and a dynamic contact, the dynamic contact comprises at least two dynamic contact bridges which are arranged side by side in a third direction, each dynamic contact bridge is arranged on the contact support in the second direction, and a dynamic contact point of each dynamic contact bridge is arranged opposite to a static contact point of the static contact in the first direction. In the application, the two adjacent dynamic contact bridges in the same dynamic contact assembly are arranged side by side in the third direction, so that the number of contact points between the dynamic contact assembly and the static contact group can be increased, the two adjacent dynamic contact bridges are prevented from being arranged in the moving direction of the dynamic contact assembly, the space occupied by the dynamic contact assembly in the shell is saved, and the size of the change-over switch is reduced.

This utility model discloses a maintenance-friendly power transmission and transformation engineering monitoring device, comprising: a modular main unit, which includes a three-dimensional frame, the interior of which is provided with multiple partitions, dividing the interior of the three-dimensional frame into multiple independent cavities, each cavity containing a different functional compartment, the bottom of which is slidably connected to the cavity via a sliding component; and a coupling unit, disposed on the three-dimensional frame, comprising an elastic contact terminal group disposed on the back of the functional compartment and a female contact group corresponding to the elastic contact terminal group disposed inside the cavity, wherein the elastic contact terminal group and the female contact group form elastic contact and conduction when the functional compartment is inserted into the cavity. This utility model adopts a modular design, with each functional compartment slidably connected to the cavity via a sliding component. When a single functional component fails, only the corresponding functional compartment needs to be removed for repair or replacement, without the need for complete disassembly of the equipment, greatly shortening the maintenance cycle.

Embodiments of the present application provide a method and system for detecting failure of conductive contacts, a knob, a household appliance and a storage medium. The method comprises: determining whether any contact group on the knob is detected to be turned on, the knob comprising a rotating part and a base, the rotating part being capable of rotating around a rotating shaft, the base having a plurality of contact groups arranged around the rotating shaft, each contact group comprising two or more conductive contacts corresponding to each other, the rotating part being used to sequentially turn on different contact groups in the plurality of contact groups during rotation; determining whether there is a faulty contact group based on detection information of the contact group turn-on event; and determining the position of the faulty contact group based on the positions of the contact groups corresponding to at least two adjacent contact group turn-on events in the case where there is a faulty contact group. The method can timely and effectively detect the failure of the conductive contacts in the knob.

A kind of control switch, the contact of movable contact piece (101) of movable contact system (1) and the contact and separation of corresponding static contact group (2) realize the on and off of contactor, it is characterized in that: the movable contact system (1) is connected with direct-acting drive magnetic system (3), rotary drive magnetic system (4) is connected with the movable contact system (1) by transmission system (5), the rotary drive magnetic system (4) can drive the movable contact system (1) rotation by transmission system (5), the direct-acting drive magnetic system (3) can drive the movable contact system (1) direct-acting.The existing single-blade single-throw contactor structure is improved, to realize the "single-blade double-throw" function of single moving iron core and single moving contact, reduce the space occupied by multi-pole contactor, single moving contact also solves single-pole failure, while effectively improve the sealing performance of contactor.

Systems and methods are provided for managing a UE in a cellular wireless network capable of dual SIM dual standby (DSDS). A first communication is received or initiated and determined to be associated with a first subscriber identity module (SIM) of the UE. In response, a set of parameters are implemented for the first communication. A second set of parameters are implemented for communications associated with a second SIM of the UE. The parameters include a time frame to receive calls at the SIM, a designated voice message box for the SIM, automated SMS messaging responses for the SIM, a designated contact group, and a designated e-mail address for the SIM.

The embodiment of the application relates to the technical field of railway turnout operating equipment, and particularly relates to a movable contact linkage spring component suitable for a railway switch machine. The movable contact linkage spring component is used to drive linkage of two movable contact groups, so that when one movable contact group swings, the other movable contact group can swing correspondingly in the same direction. The movable contact linkage spring component comprises a connecting rod, a compression spring and a guide piece. The connecting rod is rotatably connected with a movable contact frame of one movable contact group. The compression spring is sleeved on the connecting rod. The guide piece is rotatably connected with a movable contact frame of the other movable contact group. The guide piece forms a guide cavity, a part of a rod segment of the connecting rod enters the guide cavity and is arranged to be movable along an axial direction of the guide cavity and swingable in a radial direction of the guide cavity, and the compression spring is sleeved on the rod segment of the connecting rod located in the guide cavity. Compared with a structure using a pull spring alone, the movable contact linkage spring component of the embodiment of the application can improve the reliability of the railway switch machine.