159 results about "Contact group" patented technology

The invention discloses a printing head assembly, an ink box, an ink box installation detection method and an image forming device, the printing head assembly comprises a circuit board and a contact unit, and the circuit board comprises a signal contact area. The signal contact area at least comprises a first contact area arranged corresponding to the first nozzle module and a second contact area arranged corresponding to the second nozzle module; the contact unit comprises a plurality of signal contacts and further comprises a contact detection contact set, the contact detection contact set comprises at least one contact detection contact, the at least one contact detection contact in the contact detection contact set is arranged in the middle area of the signal contact area, and the center line of the contact unit is located in the middle area. At least one of the first contact area and the second contact area is arranged on one side of the center line of the contact unit. According to the technical scheme of the embodiment of the invention, whether the ink box and the image forming device are in good contact can be detected, and the working reliability of the image forming device is ensured.

A relay includes a first contact portion, a second contact portion, a driving portion, and a spacer. The first contact part comprises a first movable contact spring and a first movable contact arranged on the first movable contact spring; the second contact part comprises a first static contact; the driving part is provided with a first driving piece, and the first driving piece is configured to drive the first movable reed to move so as to enable the first movable contact to be in contact with or separated from the first static contact; the first movable contact and the first static contact form a contact group; the separator is disposed between the contact group and the first driving member.

A method for learning finger gaiting skills for multi-fingered robot hands may decompose a finger-gaiting task into shorter tasks by contact groups. The method may augment a reference trajectory for each shorter task. The method may use representation pretraining and exploration for learning.

A closing device and a circuit breaker relate to the low-voltage electrical field. The invention provides a closing device, which comprises a handle and a contact assembly, and is characterized in that the contact assembly comprises a static contact group and a moving contact group which can be in contact with or separated from the static contact group, and the moving contact group is in transmission connection with the handle; the handle comprises a body and a quick-closing piece rotationally arranged in the body; and the driving handle rotates to drive the moving contact group to move towards the static contact group, and the quick closing piece can be in contact with the moving contact group, so that the moving contact group stores energy to realize quick closing. According to the switching-on device, rapid switching-on of the contact assembly can be realized through the processes of energy storage and energy release, so that abrasion to the contact is reduced, and the switching-on reliability of the contact and the performance of the circuit breaker are improved.

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

The invention provides a push type switch with a level linkage function, which comprises a shell, a push assembly, a contact module and a locking reset module, and is characterized in that the push assembly comprises a push button, a connecting rod and a convex clamping block, and the push button is arranged at the top end of the connecting rod; the connecting rod is arranged in the cavity of the shell in the axis direction of the shell and can reciprocate in the axis direction of the shell. The protruding clamping block is located on the outer side wall of the connecting rod and used for being clamped with the first clamping groove or the second clamping groove. The contact module comprises a first contact group and a second contact group which are arranged at an interval along the axis direction of the shell; the locking reset module is connected with the pressing button and used for locking the state of the pressing assembly when the pressing assembly moves to different positions and controlling the on-off state of the first contact set and the second contact set in cooperation with movement of the pressing assembly. The technical problem that in the prior art, a push type switch cannot achieve high and low level switching in a closed state can be solved.

The invention provides an arc extinguishing system. The arc extinguishing system comprises a first arc extinguishing group, a second arc extinguishing group, a third arc extinguishing group, a first end tab, a second end tab, an insulating shell, a contact group, a conducting piece and an end cover. The contact piece group is opposite to the conduction piece. And the three arc extinguishing groups are arranged in the insulating shell and are arranged behind the contact group together. And the first run-on plate is tightly attached to the conduction piece and is arranged below the first arc extinguishing group. And the second run-on plate is arranged above the third arc extinguishing group. A contact plate is arranged at one end, facing the contact group, of the second run-on plate. Magnetism increasing plates are arranged on the two sides of the contact plate, and a local magnetism increasing area is defined by the magnetism increasing plates and the contact plate. The arc extinguishing group is matched with the long contact piece of the contact group to form an arc striking structure, and when the circuit breaker is switched off, a local magnetism increasing area is constructed at the stopping position of the long contact piece of the contact group, so that the electromagnetic driving force of an arc entering the arc extinguishing group is improved. Meanwhile, staggered main cutting areas and side cutting areas are arranged in the arc extinguishing groups, group-by-group, batch and partition cutting of the arc and the cutting blades is achieved, the arc cutting difficulty is lowered, and the arc extinguishing capacity of the contact arc extinguishing system is improved.

The invention relates to a contact module structure of a switch, which comprises a moving contact, and the moving contact can be contacted with and separated from a static contact in a rotating process, so that a main loop of the switch is in a switching-on or switching-off state. And the moving contact group in the moving contact can be limited by the limiting clamping boss to slowly reach a final opening position. The limiting clamping boss can block an electric arc escaping between the moving contact and the static contact, so that the electric arc is stretched and thinned to be dissipated according to a designed route. And the limiting clamping boss enables the movable contact group to be stressed and clamped inwards so as to stop moving, so that the abrasion of the shell is reduced, and the service life of the product is prolonged.

The utility model discloses a relay. The relay comprises a housing; the magnetic driving part is arranged in the shell and comprises a coil assembly, a yoke assembly and an armature assembly, and the axial direction of the coil assembly is defined as the X direction; the contact part comprises a movable contact group and a static contact group which can be mutually disconnected or attracted along the X direction, and the static contact group is arranged on the shell; the pushing part comprises a pushing card and a clamping piece, one end of the pushing card is provided with the armature assembly, the clamping piece is used for installing the movable contact set, the other end of the pushing card is provided with a clamping groove, the extending direction of the clamping groove is defined as the Z direction, the clamping groove extends to the edge of the clamping groove, and the clamping piece is clamped in the clamping groove. According to the relay provided by the utility model, the pushing card is provided with the clamping groove extending to the edge, so that the pushing card can be conveniently clamped in the clamping groove through the clamping piece, and the movable contact group can be rapidly installed.

The utility model provides a static contact group, which comprises a static contact seat and a mounting groove which is arranged on the static contact seat and is used for mounting a static contact sheet and a reinforcing sheet, and a limiting end part of a mounting section of the reinforcing sheet, which is mounted in the mounting groove, is bent towards the side wall of the mounting groove and is inserted into a limiting groove on the side wall; and an elastic supporting piece is arranged between the limiting end part and the notch side wall at the notch of the mounting groove. According to the utility model, the mutual interference between the static contact sheet and the reinforcing sheet is effectively avoided, especially, the thickness of a conductive part at the wiring stud is greatly reduced, the electrical conductive distance is shortened, the electrical safety is enhanced, and meanwhile, the constant stress support of the static contact sheet is ensured.

The utility model discloses a pluggable contact group for a railway point switch, which comprises a contact seat and a contact group, the two ends of the contact seat are respectively provided with six binding posts, and each binding post is connected with a plug-in sheet. According to the utility model, through the function separation design of the contact seat and the contact group, wiring and on-off functions are modularized, misconnection caused by wire dismounting and other risks caused by the fact that a fastener falls into the switch machine are thoroughly avoided, the contact group is vertically locked with the plug-in sheet and the bolt through the plug-in head, stable electrical connection is kept in vibration and severe environments, and the safety of the switch machine is ensured. And faults such as poor contact and short circuit are reduced. Meanwhile, the pluggable structure supports rapid replacement of the contact group, and the maintenance time is shortened. And the bottom sealing structure isolates pollutants, is matched with regular section repair / factory repair, maintains contact cleanness and low resistance, and ensures long-term reliable operation. According to the design, the problem of environmental deterioration of an open contact is radically solved, the operation and maintenance cost is reduced, and the railway transportation safety and efficiency are remarkably improved.

The invention discloses a relay with an auxiliary contact group, and relates to the technical field of relays. The relay comprises a coil assembly, an armature assembly, a push sheet, a main contact group and an auxiliary contact group. A claw-shaped structure with a downward opening is arranged at the tail end of an armature supporting arm of the armature assembly, and two side walls extend out of one side of the claw-shaped structure to form a groove-shaped structure. The claw-shaped structure drives the pushing sheet to control the main contact group, and the groove-shaped structure is linked with the auxiliary contact group, so that a single support arm can synchronously control multiple groups of contacts. An arc-shaped boss is arranged in the claw-shaped structure to be matched with the pushing piece to reduce abrasion, and the tail end buckle structure facilitates preassembling of the pushing piece. The problems that main and auxiliary contacts are poor in synchronism and a traditional armature cannot be linked with multiple groups of contacts are solved, synchronism and reliability are remarkably improved, and the assembly process is simplified.

The utility model discloses a combined type on-load tap-changer main shaft assembling structure, which comprises a hollow cylindrical insulating main shaft, a contact group and a metal clamping plate, the metal clamping plate is positioned on the inner side of the insulating main shaft and is provided with a plurality of threaded holes; a plurality of insulating main shaft counter bores and a plurality of insulating main shaft through holes corresponding to the metal clamping plate threaded holes are respectively formed in the side wall of the insulating main shaft; the connecting screw is arranged in the insulating main shaft counter bore, penetrates through the insulating main shaft counter bore and then is in threaded connection in the metal clamping plate threaded hole; the outer side of the insulating main shaft is sleeved with a circular ring, and the circular ring is provided with a circular ring counter bore corresponding to the insulating main shaft through hole. A fastening screw is arranged in the circular ring counter bore, and the fastening screw sequentially penetrates through the circular ring counter bore and the through hole of the insulating main shaft and then is in threaded connection in the threaded hole of the metal clamping plate; and the contact group is fixed on the circular ring and surrounds the insulating main shaft. According to the utility model, the reliability of the fixing form of the contact group is improved, the insulation main shaft is not extruded, the quality of the tap switch is ensured, and the market competitiveness is enhanced.

The invention discloses an electromagnetic relay contact isolation structure, and relates to the technical field of relays, the electromagnetic relay contact isolation structure comprises a relay main body, a base, an outer cover and an isolation frame, the base is uniformly provided with a plurality of contact sheets, and the bottom of the base is provided with contact tail sheets at positions corresponding to the contact sheets and is electrically connected with the contact sheets; a back plate is fixedly arranged on the rear side of the base, the isolation frame is detachably arranged on the base and the back plate, at least two flash barriers are arranged on the isolation frame, and the plurality of contact sheets are transversely divided into at least two contact groups; according to the invention, the flash barriers are arranged on the isolation frame to separate the contact groups, and the contact areas in each contact group are separated through the stop blocks, so that the contact states of other areas are prevented from being affected by the breakage of the contact sheets, for example, the connection of disconnected contacts is avoided, and the risk of signal upgrading is avoided.

A change-over switch comprises a shell, a driving system and conductive systems, each conductive system comprises two sets of contact mechanisms, a wire inlet assembly and a wire outlet assembly, the two sets of contact mechanisms are arranged in a spaced mode in the first direction, and each set of contact mechanism is connected between the wire inlet assembly and the wire outlet assembly in the second direction. Each group of contact mechanism comprises a moving contact assembly and a static contact assembly which are opposite to each other at an interval in a first direction, a rotating shaft is rotatably arranged between the two groups of contact mechanisms, the central axis of the rotating shaft is parallel to a third direction, and the driving system and the conductive system are stacked in the third direction and are in driving connection with the rotating shaft of at least one conductive system. The rotating shaft is rotated, and the rotating shaft is matched with the driving assembly, so that one group of contact mechanism is firstly switched off in place, and then the other group of contact mechanism is switched on in place. According to the invention, the driving system and the conductive system are stacked, and the same rotating shaft is used for driving the two groups of contact mechanisms, thereby simplifying the composition and cooperation of internal parts, and facilitating the reduction of the overall size.

A set (40) of electrical switching contacts (1, 2) for a vacuum circuit breaker (100) is proposed, comprising:-a first contact (1),-a second contact (2) movable along a movement axis (A), each contact (1; 2) has a plurality of branches (5a, 5b, 5c; 6a, 6b, 6c), said branches being formed by a slot (7a, 7b, 7c; 8a, 8b, 8c), in which each branch (5a, 5b, 5c) of the first contact (1) and each branch (6a, 6b, 6c) of the second contact (2) comprise an inclined surface (9a, 9b, 9c; 10a, 10b, 10c), and wherein the first contact (1) and the second contact (2) are connected at an angle such that:-the slot (7a, 7b, 7c) of the first contact (1) coincides with the slot (8a, 8b, 8c) of the second contact (2), and-the inclined surface (9a, 9b, 9c) of one branch (5a, 5b, 5c) of the first contact (1) and the inclined surface (10a, 10b, 10c) of one branch (6a, 6b, 6c) of the second contact (2) are opposite each other.

A low-voltage contacts group for a low-voltage circuit breaker is disclosed. The low-voltage contacts group comprises: a fixed contact adapted to be electrically connected to an electrical terminal of said circuit breaker; and a movable contact assembly. The movable contact assembly comprises a rotating supporting shaft adapted to be operatively connected to an actuation mechanism of said circuit breaker and which has a body provided with a first seat; and a rotating moving contact sub-assembly. The rotating moving contact sub-assembly comprises a supporting structure, a rotating moving contact connected to the supporting structure, an elastic element for ensuring adequate contact pressure when an active surface of the moving contact is coupled to the fixed contact, and a mechanical link between the elastic element and supporting structure.

The invention relates to a radio wave distance measurement technology, in particular to a radio frequency distance measurement device capable of crossing obstacles and a distance measurement method, and the device comprises a reference plane and a lifting foundation which can alternately move up and down along the height direction of the reference plane; a plurality of trigger blocks are fixedly arranged on the reference plane in the height direction of the reference plane, the trigger blocks are arranged side by side to form a column of contact sets, the contact sets are located on one side of the lifting foundation, a swing arm is arranged on the lifting foundation in a deflection mode, and a radio frequency range finder is fixedly installed on the swing arm; the lifting base is further provided with a transposition mechanism used for being matched with the contact set, and the transposition mechanism is connected with the swing arm. According to the invention, a common programmable time sequence control system is abandoned, and a physical structure is adopted to control the plane orientation of the radio frequency range finder, so that the environmental interference noise of a wireless radio frequency electric wave signal in the propagation process is reduced, and the probability of data distortion and decoding errors is reduced.

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.

The utility model discloses a point switch contact group dynamometer, and relates to the railway equipment signal detection technology field, the point switch contact group dynamometer comprises a dynamometer body and a contact assembly, one side of the dynamometer body is fixedly provided with a display screen and buttons, the other side of the dynamometer body is fixedly provided with a first baffle plate and a second baffle plate, the first probe assembly is composed of a first conduction piece, a second conduction piece, a first pressure diaphragm, a second pressure diaphragm and a supporting plate. The point switch contact group dynamometer disclosed by the utility model is provided with the supporting plate, so that the pressure of the first contact sheet and the pressure of the second contact sheet are conducted to the first conduction sheet and the second conduction sheet, and then the pressure conducted to the first pressure diaphragm and the pressure conducted to the second pressure diaphragm do not influence each other; meanwhile, a plurality of contact pieces can be tested, time and labor are saved, a large number of point switch contact sets can be conveniently tested, and the use efficiency of the dynamometer is improved.

The invention discloses an automatic interaction system and method based on a large model and an enterprise knowledge base, and relates to the technical field of knowledge base management, and the system comprises an establishment module which is used for configuring the large model corresponding to the enterprise knowledge base and establishing an interaction surface between the enterprise knowledge base and the large model, and a data management module which is connected with the establishment module, the configuration module is connected with the data management module and used for configuring a superposition template corresponding to a contact group, and the analysis module is connected with the data management module and used for obtaining user question information and analyzing the user question information through a large model to obtain an analysis result; and the association module is connected with the analysis module and is used for selecting one to-be-used contact group for association according to the analysis result. According to the method, the corresponding number of contact groups can be started according to the number of dialogues of the user side at the same time, the stability of data interaction in the interactive dialogue process is guaranteed, the situation that data is mixed and crashed in the system is reduced, meanwhile, the high efficiency of interactive dialogue data providing can be guaranteed, and data searching and obtaining can be rapidly carried out.

The embodiment of the invention relates to an ink-jet printer, and discloses a printing head assembly, an ink box and an image forming device. In the present invention, the print head assembly comprises: a nozzle unit comprising a black nozzle and a color nozzle; the contact unit comprises a first contact group and a second contact group, relative to a separation line of the black nozzle and the color nozzle, the first contact group and the black nozzle are located on the same side, and the second contact group and the color nozzle are located on the same side; the first contact for transmitting the special signal of the black nozzle and the second contact for transmitting the special signal of the color nozzle are respectively positioned in the first contact group and the second contact group; a lead wire for electrically connecting the nozzle unit and the contact unit; when the printing head assembly is unfolded to enable the nozzle unit and the contact unit to be located on the same plane, at least two of the leads intersect in different planes. According to the printing head assembly, the ink box and the image forming device, miniaturization of the ink box is facilitated, and the cost of the ink box is saved.

The utility model discloses an automatic maintenance on-load tap-changer, which relates to the field of high-voltage equipment control technology, and comprises a change-over switch, the change-over switch comprises a moving contact and a potential contact group, and the automatic maintenance on-load tap-changer is characterized in that the change-over switch further comprises an equipotential contact group; the potential contact group comprises a plurality of static contacts with different potentials; the equipotential contact group comprises a plurality of equipotential contacts, the equipotential contacts are in one-to-one correspondence with the static contacts, and the corresponding equipotential contacts and static contacts have the same potential; the moving contacts are sequentially overlapped on different static contacts and equipotential contacts along with the switching action of the on-load tap-changer, the static contacts and the equipotential contacts are arranged alternately, and the corresponding equipotential contacts are adjacent to the static contacts. When the on-load tap-changer is in a non-working state for a long time, an instruction is sent out to make the on-load tap-changer act like an equipotential gear, at the moment, the action of the on-load tap-changer does not cause the change of the voltage of the transformer, meanwhile, the purpose of regular action of the on-load tap-changer can be achieved, and the on-load tap-changer is a maintenance measure for the on-load tap-changer.

The change-over switch comprises a shell and a switch pole, the switch pole comprises a rotating shaft and two groups of contact mechanisms, in a first direction, the rotating shaft is rotatably assembled between the two groups of contact mechanisms, each group of contact mechanism comprises a static contact group and a moving contact assembly, the static contact group comprises two static contacts which are arranged at intervals in a second direction, and the moving contact assembly comprises two moving contacts which are arranged at intervals in the second direction. The moving contact assembly comprises a contact support and a moving contact, the moving contact comprises at least two moving contact bridges which are arranged side by side in the third direction, each moving contact bridge is arranged on the contact support along the second direction, and a moving contact of each moving contact bridge is opposite to a static contact of the static contact at an interval in the first direction. According to the utility model, the two adjacent moving contact bridges in the same moving contact assembly are arranged side by side in the third direction, so that the number of contacts between the moving contact assembly and the static contact assembly can be increased, the two adjacent moving contact bridges are prevented from being arranged in the moving direction of the moving contact assembly at intervals, and the space occupied by the moving contact assembly in the shell is saved; and the size of the change-over switch is reduced.

The invention relates to the technical field of intelligent glasses, in particular to a charging structure of intelligent glasses, which comprises a glasses frame and a charger, a bridging part of the glasses frame is provided with a first contact group, and the first contact group is electrically connected with a glasses battery; the charger comprises a shell, a battery pack and a cover body, the battery pack is contained in the shell, and the shell is packaged by the cover body; a charging seat, a hinge seat and a lock frame are arranged on the rear side of the shell, the lock frame is rotatably mounted on the hinge seat, and the lock frame is buckled with the charging seat so that the glasses frame can be clamped on the charger; a second contact group is arranged on the charging seat, the second contact group is electrically connected with the battery pack, the first contact group is connected with the second contact group, and the battery pack charges the glasses battery. The glasses frame is tightly connected to the charger for charging, charging is stable, reliable and convenient, charging of the intelligent glasses can also be achieved, and the cruising ability of the intelligent glasses is improved; and the charging structure can be hung on the neck to realize charging while walking, so that the charging structure is very suitable for being carried when going out.

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 utility model relates to a microswitch moving contact group capable of effectively avoiding arc discharge, which uses a support sheet and a seesaw to form a static terminal, and uses a button and a crimping sheet to simultaneously press a tension spring and the seesaw to drive a moving contact and a static contact to synchronously move in opposite directions, thereby greatly improving the relative approaching speed of the moving contact and the static contact, and improving the safety of the moving contact and the static contact. Therefore, the arc discharge phenomenon between the moving contact and the static contact can be effectively avoided, and the moving contact and the static contact are ensured to keep a good contact conduction effect for a long time.

The utility model discloses a battery. The battery comprises a shell; the battery core is arranged in the shell; and a contact group; the shell is provided with a first end part and a second end part which are opposite, a first groove is formed in the peripheral wall of the shell, and the first groove is communicated with the interior of the shell; the number of the first grooves is two or three, when the number of the first grooves is two, the contact piece group comprises first contact pieces and second contact pieces, each contact piece corresponds to one first groove, each contact piece penetrates out of the shell from the interior of the shell and is exposed in the first groove, and the first contact pieces and the second contact pieces are arranged adjacently or oppositely in the circumferential direction of the outer circumferential wall of the shell; when the number of the first grooves is three, the contact piece set comprises a first contact piece, a second contact piece and a third contact piece, each contact piece corresponds to one first groove, each contact piece penetrates out of the shell from the interior of the shell and is exposed in the first groove, and the first contact piece and the second contact piece are oppositely arranged in the circumferential direction of the outer circumferential wall of the shell. One of the first contact piece and the second contact piece is adjacent to the third contact piece.

The invention relates to the technical field of safety protection, in particular to an anti-disassembly method and system for a Beidou safety communication terminal, and the method comprises the following steps: obtaining the initial state of a conductive needle, detecting the crimping depth and the pressure angle deformation, extracting a response sequence and an interruption contact, mapping a rebound direction and a path track, and analyzing the difference between contact maintenance and displacement. And tracking the contacts with the consistent conduction state and direction to obtain an anti-disassembly trigger locking contact group. According to the method, the proportion corresponding relation between the crimping state and the structural deformation quantity is established, the contact separation trend is identified, the response rhythm difference range is delimited in combination with the conductive point number and the wiring sequence, the springback direction and the deformation track are tracked to extract behavior offset characteristics, and the structure out-of-control section is identified according to the contact state of the limiting teeth and the displacement trend change. Contacts with consistent behaviors are extracted in combination with conduction interruption and pressure angle direction change, the conduction interference sensing capability in a micro-deformation state is enhanced, and the protection response integrity and linkage control capability of the terminal in the initial stage of disassembly are enhanced.

The utility model relates to the technical field of electric vehicle power management, and discloses a contact scale cleaning device for an electric vehicle battery. Comprising an operation installation disc, two contact friction arc-shaped blocks which are installed on the operation installation disc and used for cleaning scale deposit of a switch-on contact set, and two contact friction arc-shaped blocks which are installed on the operation installation disc and used for cleaning scale deposit of switch-on contacts. Wherein the two contact friction arc-shaped blocks are symmetrically arranged on the two sides of the mode adjusting disc and make contact with the switching-on contacts at the two ends respectively, the two contact friction arc-shaped blocks are symmetrically arranged between the two switching-on contact sets and make separable contact with the two switching-on contact sets respectively, and the operation installation disc and the mode adjusting disc are coaxially arranged and can rotate relatively independently. Therefore, the two contact friction arc-shaped blocks are connected with the contact group, and the two contact friction arc-shaped blocks and the switch contacts can rotate relatively, so that scales generated by oxidation and spark corrosion on the switch contacts can be cleaned through friction, and the influence on the use effect and the service life of the battery pack due to reduction of an effective contact surface of electric contact is avoided.