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287results about How to "Avoid bad contact" patented technology

Mobile terminal

The invention provides a mobile terminal. The mobile terminal provided by the invention comprises a shell; a pickup hole is formed in the shell; a microphone, a circuit board, a waterproof membrane bracket, a waterproof membrane and a sound receiving bracket are arranged in the inner cavity of the shell; the waterproof membrane is stuck on the waterproof membrane bracket and is supported against the pickup hole which is located at the inner sidewall of the shell; the microphone is arranged on the circuit board; a sound receiving through hole which is opposite to the waterproof membrane is formed in the waterproof membrane bracket; the sound receiving bracket is connected with the shell; the sound receiving bracket is provided with a through hole; one end of the through hole is opposite to the sound receiving through hole of the waterproof membrane bracket while the other end thereof is opposite to the receiving end of the microphone, so that a sound conduction channel is formed between the pickup hole and the receiving end of the microphone; and the circuit board is electrically connected with the microphone to drive the microphone to receive sound. According to the mobile terminal, a microphone sealing and waterproof structure with good sealing and high reliability can be realized.
Owner:QINGDAO HISENSE MOBILE COMM TECH CO LTD

Manufacturing method for touch panel edge wire routing, touch panel and touch display device

The invention provides a manufacturing method for touch panel edge wire routing, a control panel with the edge wire routing and a touch display device. The manufacturing method comprises the following steps of (a) forming a photosensitive conductive paste layer on an edge area of a substrate with a transparent conductive layer, enabling the photosensitive conductive paste layer to be at least in partial overlapping with the transparent conductive layer, (b) exposing the photosensitive conductive paste layer by using a mask, and (c) carrying out developing on the exposed photosensitive conductive paste layer to form a patterning edge wire routing unit on the edge area of the substrate. The manufacturing method is beneficial to improving the precision of a wire route under the situation that the wire width of the edge wire routing is narrowed, and can enable the wire route to have good surface smoothness.
Owner:INNOCOM TECH SHENZHEN +1

Flexible array-based brain-computer interface electrode cap

The invention discloses a flexible array-based brain-computer interface electrode cap, which comprises a flexible electrode cap body. The electrode cap body is internally provided with a plurality of input terminals, and the input terminals are provided with a flexible array electrode. The invention has the advantages that the flexible array-based brain-computer interface electrode cap can be worn comfortably, can be used rapidly and conveniently, and has a high signal-noise ratio, high universality and good stability.
Owner:NAT UNIV OF DEFENSE TECH

Animal protective device and method

An animal protective device and method are provided for preventing contact of the animal's head with other parts of the animal. The device includes a body formed in a truncated cone shape. A pressure strap maintains contact with the upper portion and back portion of the animal's head in order to keep the device aligned with the nose and mouth area of the animal. An integral attachment strap is provided that is routed around the neck of the animal to further stabilize the device on the animal. The device may be adjusted at the attachment strap as well as the body to ensure that the device is correctly fitted to the animal. The device is of one-piece construction and does not require use of a separate collar, such as the identification collar of the animal.
Owner:KVP INT INC

System and method for collecting electroencephalogram signal on basis of impedance self-adaption

The invention discloses a system for collecting an electroencephalogram signal on the basis of impedance self-adaption. The system comprises an electrode cap, wherein a plurality of electrodes are arranged on the electrode cap and also comprises an impedance detection device for detecting an impedance value of the electrode, and a conductive liquid injection device for supplying conductive liquid to the electrode; the conductive liquid injection device comprises a dosing execution mechanism connected to each electrode and a controller connected with the impedance detection device, and the controller controls the dosing execution mechanism to dose liquid to the electrode of which a real-time impedance value is in a dosing threshold range according to the real-time impedance value of each electrode measured by the impedance detection device. The system has the advantages of being simple to operate and convenient to use; low electrode impedance can be kept for a long time and electroencephalogram data can keep high signal-to-noise ratio and high stability. A method for collecting the electroencephalogram signal on the basis of impedance self-adaption is also disclosed by the invention.
Owner:NAT UNIV OF DEFENSE TECH

Multi-interface connecting wire

ActiveCN109761111AEasy to useAvoid shortened cable lengthsCouplings bases/casesEngineeringCam
The invention relates to the technical field of data connecting wires, and discloses a multi-interface connecting wire which comprises a shell and a main cable. An adapter junction box is fixedly arranged in the shell; a first wire outlet is formed in one side of the adapter junction box; at least two branch cables are electrically connected to one end of the main cable located in the adapter junction box; the other end of the main cable penetrates through the first wire outlet so as to be electrically connected with a universal serial bus (USB) male connector; second wire outlets numericallyequal to the branch cables are formed in the other side of the adapter junction box; the branch cables penetrate through the corresponding second wire outlets and are electrically connected with interface connectors; wire winding shafts are rotatably connected to the positions, corresponding to the first wire outlet and the second wire outlets, in the shell; wire winding wheels are coaxially connected onto the wire winding shafts and are coaxially connected with ratchet wheels; springs wind on the wire winding shafts; pawls meshing with the ratchet wheels are rotatably connected onto the shell; reset springs are fixedly connected between the pawls and the shell; and cams for pushing the pawls to rotate are rotatably connected onto the shell. The multi-interface connecting wire provided bythe invention has the advantages of convenience in winding, and capability of freely adjusting the length.
Owner:NINGBO BROAD TELECOMM

Sound cavity structure and mobile terminal

The invention discloses a sound cavity structure and a mobile terminal. The sound cavity structure comprises a shell and a circuit board, a loudspeaker and a supporting plate which are arranged in the shell. The shell comprises a first shell body and a second shell body which are mutually connected. The first shell body is provided with a sound outlet hole penetrating through the first shell body. The internal side of the first shell body is provided with a front cavity channel communicated with the sound outlet hole. The internal side of the second shell body is provided with a slot body used for accommodating the loudspeaker. The mobile terminal comprises the sound cavity structure and a display screen. The display screen is installed at the external side of the second shell body. The sound cavity structure can be applied to the technical field of communication electronics, the defects in the prior art can be effectively overcome by applying the sound cavity structure, an independent application of the integrated BOX can be replaced by the optimized connection arrangement of the component, the limitation caused by the mould manufacturing period and the manufacturing cost of the integrated BOX can be eliminated, the concrete composition of the sound cavity structure can be optimized, the sealing problem caused by the integrated BOX can be avoided and the overall sealing performance of the structure can be enhanced.
Owner:NUBIA TECHNOLOGY CO LTD

Portable information terminal and digital camera therefor, and portable digital camera information terminal system

A portable information terminal such as mobile communication terminal having an earphone jack for sound input / output, PHS (personal handy-phone system), PDA (personal digital assistants), and mobile personal computer; a digital camera to connect to the portable information terminal, a digital camera connected portable terminal device comprising the portable information terminal and the digital camera, as well as to a method of controlling such a portable information terminal. The existing earphone jack provided on portable information terminals can be adopted as the plug for the digital camera or insertion plug for the connector of USB cable, so that the cost can be lowered and the system made compact to provide a highly flexible portable information terminal and a digital camera for use with the portable information terminal.
Owner:KYOCERA CORP +1

An air cleaner, a dust collecting device and a conducting strip

An air cleaner, a dust collecting device and a conducting strip are disclosed. The conducting strip comprises a strip main body and an inserting groove electrically connected to the strip main body. The inserting groove is provided with opposite groove walls and a base wall. A plurality of raised clamping parts are disposed in the inside of each groove wall, and the raised clamping parts of one of the groove walls and the raised clamping parts of the other groove wall are disposed opposite. When the conducting strip is used, because the plurality of pairs of opposite clamping parts are disposed in the insides of the groove walls and the distance between each two opposite clamping parts is slightly smaller than the thickness of a polar plate, the opposite clamping parts are in tight contact with the polar plate when the polar plate is inserted into the inserting groove so as to clamp the polar plate tightly and prevent waggle of the polar plate between the opposite inserting groove walls, thus further preventing bad contact situations.
Owner:GREE ELECTRIC APPLIANCES INC

Micropore plate sampling system and method

The invention discloses a micropore plate sampling system and method. The micropore plate sampling system is characterized by comprising a base (001), a moving mechanism, a pipetting device, a waste material treatment device, a suction nozzle shelf, a reagent shelf (402) and a culture vessel shelf (404), wherein the moving mechanism, the waste material treatment device, the reagent shelf and the culture vessel shelf are arranged on the base; the pipetting device is arranged on the moving mechanism; a plurality of suction nozzles (401) are arranged at the suction nozzle shelf; the reagent shelfis provided with a plurality of inserting grooves for placing test tubes; at least one culture vessel position is arranged on the culture vessel shelf; each culture vessel position can correspond toone culture vessel (403); a pipetting needle head (310) used for loading the suction nozzles is arranged at the end part of the pipetting device; the moving mechanism is used for driving the pipettingdevice to realize position switching in all positions of the waste material treatment device, the suction nozzle shelf, the reagent shelf and the culture vessel shelf. The micropore plate sampling system and method have the advantages that the integration degree is high; the functions are rich.
Owner:深圳市博辰智控有限公司

Colloid removing method of quad flat no-lead packaging chip

A colloid removing method of a quad flat no-lead packaging chip is used for solving the existing problem of poor yield of quad flat no-lead packaging chips. The colloid removing method of the quad flat no-lead packaging chip includes: an image of a substrate is obtained by photographing through a photomicrography device, a plurality of chips are packaged in the substrate, the chips are electrically connected with a plurality of lead frames, the lead frames are formed on a surface of the substrate, and colloids are arranged among lead frames; the image of the substrate is loaded by use of an arithmetic unit, based on which image analysis operation is executed to locate the chips packaged in the substrate; and the arithmetic unit compares each chip with a sample image, so as to detect the part of the lead frame electrically connected with each chip which is covered by residual gum of the colloid and is judged to be a redundant block of the colloid that needs ablation, a laser trajectory of a laser generator is set according to the redundant block, and the laser generator ablates and removes the redundant block of the colloid.
Owner:蔡宜兴

Wearable device for electroencephalogram monitoring

The invention discloses a wearable device for electroencephalogram monitoring, comprising a mounting frame, a first brain electrode and a second brain electrode. The mounting frame includes a first horizontal guide, a second horizontal guide, a third horizontal guide, a top plate, a first connection arm and a second connection arm. Both the first horizontal guide and the second horizontal guide are of circular structure; the third horizontal guide is of C-shaped structure; the first horizontal guide, the second horizontal guide and the third horizontal guide are arranged right below the top plate sequentially and concentrically. The wearable device for electroencephalogram monitoring has the advantages that the brain electrodes are placed in any position on the human head; when the brain electrodes act on patients having different head sizes, the positions are more precise; distances from the brain electrodes to a patient's head are adjustable so that the brain electrodes may tightly contact any position of the head, falling of the brain electrode is prevented, poor contact of the brain electrodes is also prevented, and electroencephalogram data stability is improved.
Owner:SOOCHOW UNIV AFFILIATED CHILDRENS HOSPITAL

Micro limit general switch based on double elastic components

The invention discloses a micro limit general switch based on double elastic components. The switch comprises a casing, the casing is internally provided with a normally-open connector, a normally-closed connector and a common connector, one end of each connector extends out of the casing, the casing is internally provided with a moving contact and a guiding assembly which limits the movement track of the moving contact, the moving contact is in linked connection with an elastic assembly and a triggering assembly successively, and the elastic assembly and the triggering assembly drive the moving contact to move; the elastic assembly comprises a main spring, an auxiliary spring which generates an auxiliary downward pressure and a movable block which is penetrated by the main spring and abuts against the guiding assembly in a swinging manner; and the movable block includes an arched contact surface which makes contact with an inclined plane of the guiding assembly. According to the invention, the elastic assembly services as a driving mechanism of the switch, generates an elastic force, and realizes switching of the switch; and in the switching process, the vertical pressure generated between the arched contact surface and the inclined plane of the guiding assembly acts on the moving contact, and a flickering or power-off phenomenon due to equilibrium and micro movement generated when the moving contact is jumped from a normally-closed state to a normally-open state or from the normally-open state to the normally-closed state is avoided.
Owner:ZHANGZHOU JUANMEI ELECTRIC TECH CO LTD

Horizontal barrel-plating production line capable of improving efficiency

A horizontal barrel plating production line with improved efficiency, comprising a degreasing tank, a barrel plating tank, a first lifting mechanism for transferring the cylinder in the degreasing tank to the barrel plating tank, a cleaning tank, and a second lifting mechanism for transferring the cylinder in the barrel plating tank to the cleaning tank mechanism. The design of this barrel plating production line is ideal, the drag teeth on the degreasing pool are oiled evenly, the electroplating solution in the barrel plating pool is easy to splash on the conductor, and it is also prone to poor contact, and the plating solution in the cleaning pool can be recycled and reused.
Owner:惠安县金旺达工业设计有限公司

Power battery pack

The invention relates to the technical field of accessory devices of battery packs, in particular to a power battery pack. The heat dissipation effect is improved, difference between battery modules is reduced, and the service life of the battery pack is prolonged; and moreover, the poor contact of connection portions of battery packs due to vibration can be prevented effectively, and use reliability is improved. The power battery pack comprises a shell, and further comprises four left guide columns, four left guide sleeves, four right guide columns, four right guide sleeves, two left 'C'-shaped spring plates and two right 'C'-shaped spring plates, wherein a working cavity is formed in the shell; an upper heat conduction plate, a lower heat conduction plate, a battery module and a coolingfan are arranged in the working cavity; an upper slot and a lower slot are separately formed in the bottom end of the upper heat conduction plate and the top end of the lower heat conduction plate; anupper metal plate and a lower metal plate are separately arranged at the top end of the upper heat conduction plate and the bottom end of the lower heat conduction plate; and a plurality of upper projections and a plurality of lower projections are separately arranged at the top end of the upper metal plate and the bottom end of the lower metal plate.
Owner:盐城黄海新能源开发运营有限公司

Integrated circuit chip detection equipment and test method

The invention belongs to the technical field of chip detection equipment, and particularly relates to integrated circuit chip detection equipment and a test method. The equipment comprises a base and a support; a placing seat is fixedly connected with the top end of the base; an air cylinder is fixedly connected with the end surface, positioned right above the placing seat, of the support; a fixing plate is fixedly connected with a telescopic rod of the air cylinder, and a camera is fixedly connected with the center of the bottom end of the fixing plate; the bottom end of the fixing plate is fixedly connected with a pair of symmetrically-distributed pressing rods; and a probe is arranged in the placing seat. The invention provides the integrated circuit chip detection equipment and the test method, and aims to solve the problems that when an integrated circuit chip is detected, a probe is generally manually aligned with a pin of the chip for testing, the test efficiency is low, and the test range is single.
Owner:NINGBO QUNXIN MICRO-ELECTRONICS CO LTD

Test equipment for packed semiconductor elements

The test equipment for semiconductor packing element includes one conducting element, one first main body, one second main body and one pressing member. The conducting element on one side of the first main body has several conducting points for containing the pins of the packed semiconductor element electrically; the first main body has one first port to form one space to hold the semiconductor packing element; the second main body is on the other side of the first main body; and the pressing member locates the semiconductor packing element in the first port and is connected to the second main body. The present invention is suitable for manual test of semiconductor packing element of different sizes and has excellent electrical contact owing to the conducting element.
Owner:SILICON INTEGRATED SYSTEMS

Method and system for repairing array substrate

The invention discloses a method and a system for repairing an array substrate. The method includes forming a metal repairing layer in an open circuit of a metal layer on the array substrate to be communicated with the metal layer; in the process of forming the metal repairing layer, acquiring a difference value between thickness of the metal layer and that of the metal repairing layer in realtime; comparing the difference value with a preset threshold value, and when the difference value is smaller than or equal to the threshold value, completing repair. The system comprises a repairing device and a measuring device. According to the method, whether repairing is completed or not is judged by monitoring the difference value between the thickness of the metal layer and that of the metal repairing layer in realtime, so that film forming thickness of the metal repairing layer is monitored in realtime, completion of repairing is guaranteed to prevent bad contact after an TFT (thin film transistor) array is repaired, and repairing success rate is increased.
Owner:CHENGDU VISTAR OPTEOLECTRONICS CO LTD

In-vehicle starting power supply

The invention discloses an in-vehicle starting power supply. The power supply comprises a battery core group, a box body and a box cover. Battery core fixing racks can be mutually clamped with each other. The battery core fixing racks are arranged at the two ends of the battery core and used for fixing the battery core. Power supply output terminals for outputting current, and battery core group output plugs are arranged on the battery core fixing racks. One ends of the power output terminals are connected with the battery core, and the other ends of the power output terminals are connected with the battery core output plugs. Positive and second electrode posts are arranged on the box cover. A protective plate is fixedly arranged on the internal surface of the box cover. The positive and negative electrodes of the protective plate are respectively connected with the positive and negative electrode posts of the box cover. The in-vehicle starting power supply is applicable to vehicle with a variety of models. The battery core group can be formed by connecting single bodies in series or connecting a plurality of single bodies in series and in parallel. Even if one battery core group is in fault, the normal use cannot be affected, only the power supply capacity is reduced. The in-vehicle starting power supply is green, long in service life, and relatively low in recovery cost. The weight of the power supply is about 1 / 2 of the weight of a lead-acid battery core with the same capacity, so that the vehicle body weight, the locomotive fuel consumption, and the use cost are reduced.
Owner:HUIZHOU DESAY BATTERY

Imaging cartridge and chip applied to imaging cartridge

The invention relates to the field of print imaging, in particular to an imaging cartridge and a chip applied to the imaging cartridge. The imaging cartridge is detachably connected to an image forming device. Specifically, the imaging cartridge comprises a cartridge body, a first terminal and a second terminal. At least one first positioning cavity is formed in the first surface of the cartridgebody. An opening of each first positioning cavity and the first surface form a first edge. At least a portion of the first terminal and at least a portion of the second terminal are correspondingly located on the end surfaces adjacent to the first edges and / or the first edges. The first terminal is located above the second terminal in the direction in which the imaging cartridge is mounted on theimage forming device. When the imaging cartridge is mounted on the image forming device, the first positioning cavities and contact probes are constrained to each other cooperatively, and the first terminal and the second terminal are in contact with the corresponding contact probes to form a first contact portion and a second contact portion. The imaging cartridge has the beneficial effects thatthe terminals and the contact probes can be in stable electrical contact.
Owner:APEX MICROELECTRONICS CO LTD

Rapid switching-on method of fusing circuit

The invention discloses a rapid switching-on method of a fusing circuit. The rapid switching-on method of the fusing circuit is characterized in that when a circuit is normal, the current can be transmitted to a protection mechanism under the working state through a wiring mechanism I, and the current can be re-transmitted to the circuit through a wiring mechanism II; after a fuse is fused down ofthe protection mechanism under the working state due to an abnormal circuit, a self-replaceable protection device cannot work due to existence of a plug pin, so that a user or electrician performs fault checking and removal on the circuit abnormity; after the abnormal fault of the circuit is removed, the user or electrician manually pulls the plug pin and enables the plug pin to remove limit on the self-replaceable protection device; and meanwhile, the protection mechanism with the fused down fuse drives the whole self-replaceable protection device to rotate under the matching of a self guideboss and a guide groove, and finally, the next group of protection mechanism can replace the protection mechanism with the fused down fuse; next, the user loosens to enable the plug pin to restore tothe original shape; and meanwhile, the circuit is restored to be normal, and the reciprocating is carried out.
Owner:内蒙古东能建设工程有限公司

Safety plug

ActiveCN111541077AEnsure stable power connectionThe power connection process is stableCoupling contact membersLive contact access preventionEngineeringStructural engineering
The invention discloses a safety plug. The safety plug comprises a shell, the inner wall of the shell is rotationally connected with a rotating shaft through a torsional spring; a turntable is fixed at the upper end of the rotating shaft; the turntable is rotatably connected with the side wall of the shell in a penetrating manner; and two symmetrical power connection columns are inserted into theupper end of the turntable, anti-falling mechanisms are arranged in the two power connection columns correspondingly, conduction columns penetrating through the turntable are fixed to the ends, closeto the rotating shaft, of the two power connection columns correspondingly, and the inner wall of the shell is rotationally connected with power-off columns abutting against the two conduction columnsthrough torsional springs correspondingly. The safety plug has the advantages that the volume change is caused by the form change of electrorheological fluid in the expansion cavity after the electrorheological fluid is electrified; a push plate and a push block are pushed, so that a clamping block is moved out of a sliding groove to form a protrusion outwards to effectively prevent the power connection columns from moving, the power connection columns cannot be separated from a socket, the plug is prevented from being separated from the socket in the power utilization process, the plug can be pulled by the outer wall to a certain extent, and a user does not need to worry about that the plug falls off easily.
Owner:常熟市华岳触控科技有限公司

Self-protection type air conditioner power supply device capable of avoiding reed deformation

The invention relates to the technical field of intelligent air conditioners, and discloses a self-protection type air conditioner power supply device capable of avoiding reed deformation, which comprises a shell; symmetrical inserting grooves are formed in the upper part of the shell, symmetrical guide rods are rotatably connected to the middle part of an inner cavity of the shell, photoresistorsare fixedly mounted at the outer ends of the guide rods, and an indicating lamp corresponding to the photoresistor is fixedly mounted on the side wall of the inner cavity of the inserting groove. According to the self-protection type air conditioner power supply device capable of preventing the reed deformation, the symmetrical guide rods capable of detecting insertion of foreign objects are arranged on the two sides of the inner cavity of the shell, the photoresistor and the indicator lamp are used in cooperation, and then the reed is arranged to be of a retracting type in a matched mode, sothat the reed automatically pops up to make contact with the plug only after the plug is completely inserted into the inserting groove; therefore, the situation that a child inserts an object into the equipment body accidentally to cause danger is avoided, and the situation that the reed deforms due to friction and extrusion is avoided.
Owner:曾誉军

Processing parameter optimization method for reducing mounting error sensitivity of hypoid gear

ActiveCN109993464ASolved the problem of not being able to accurately evaluate the characteristics of mesh impressionsReasonably control the comprehensive optimization processGeometric CADToothed gearingsGenetic algorithmEngineering
The invention discloses a machining parameter optimization method for reducing the mounting error sensitivity of a hypoid gear. The method comprises the following steps of: giving geometric parametersof the gear blank of the large gear, size parameters of the gear cutter and machining parameters of a machine tool; after geometric parameters of the small gear blank and size parameters of the gearcutter are given, establishing an installation error comprehensive sensitivity optimization model, finding out the optimal machining parameters of the small gear machine tool through a genetic algorithm, and therefore reudicng the sensitivity of the hypoid gear pair to the installation error. According to the method, the degree of influence of different types of installation errors on the meshingperformance can be judged, so that a theoretical basis is provided for assembly precision control during actual installation.
Owner:HEFEI UNIV OF TECH

Crystal plate stacked structure and manufacturing method thereof

The invention discloses a crystal plate stacked structure and a manufacturing method of the crystal plate stacked structure. The crystal plate stacked structure comprises a base plate, a lower crystal plate, lower bottom portion filling glue, an upper crystal plate, upper bottom portion filling glue and a plurality of first joint glue blocks. The first joint glue blocks are arranged between the lower crystal plate and the upper crystal plate and on a plurality of corner positions of the upper crystal plate, and are respectively connected with the lower crystal plate and the upper crystal plate. Due to the fact that the first joint glue blocks are respectively attached to the corner positions of the bottom face of the upper crystal plate, the first joint glue blocks are enabled to be fixedly connected with the upper crystal plate and the lower crystal plate by heating, therefore, in the process of filling the upper portion filling glue, the situation that contact is bad due to the fact that corners or edge of the upper crystal plate are warped is avoided.
Owner:ADVANCED SEMICON ENG INC

Wireless power supply device for testing guided missiles

The invention discloses a wireless power supply device for testing guided missiles. The wireless power supply device comprises a transmitter and a receiver, wherein the transmitter comprises a transmitting coil used for transmitting an electromagnetic wave signal, a first alternating-current voltage source used for providing first voltages for the transmitting coil, and a partial pressure unit used for adjusting the sizes of the first voltages at the two ends of the transmitting coil. One end of the first alternating-current voltage source is electrically connected with one end of the transmitting coil through the partial pressure unit, and the other end of the first alternating-current voltage source is electrically connected with the other end of the transmitting coil. The receiver comprises a receiving coil used for receiving the electromagnetic wave signal from the transmitting coil, and a rectifying unit used for converting second voltages at the two ends of the receiving coil into third voltages required by loads, the two ends of the receiving coil are electrically connected with the input end of the rectifying unit, and the output end of the rectifying unit is electrically connected with the loads. The reliability of the wireless power supply device is remarkably improved, and the wireless power supply device is beneficial to achieving miniaturization of the power supply device.
Owner:BEIJING INST OF ELECTRONICS SYST ENG

Tension constant resistor capable of calculating difference of alternating current and direct current

The invention provides a tension constant resistor capable of calculating difference of alternating current and direct current, which is applicable to a coaxial-line hang-spring structure and is provided with a tension device enabling a resistance wire to keep in a tight state all the time. The tension constant resistor improves the stability of a resistor structure capable of calculating the alternating current and the direct current. The tension constant resistor comprises an inner metal sleeve and an outer metal sleeve which are coaxial, a mono-wire linear resistance wire is located in the central axial of the inner metal sleeve, the resistance wire adopts a duel-hole return wire method to be connected with a back end face of the inner metal sleeve and then to be connected with the a back end face of the outer metal sleeve in a pressure welding mode. A front end face center hole is respectively arranged in the central positions of front end faces of the inner metal sleeve and the outer metal sleeve, the resistance wire sequentially penetrates through the front end face center holes of the inner metal sleeve and the front end face center hole of the outer metal sleeve, and the tension device enabling the resistance wire to keep in the tight state is arranged at the position where the resistance wire penetrates from the front end face center hole of the outer metal sleeve.
Owner:BEIJING DONGFANG MEASUREMENT & TEST INST

Safety controller applied to circuit overload protection

The invention provides a safety controller applied to circuit overload protection. The safety controller comprises an installation housing, a circuit protection device and a knob reset device. The circuit protection device comprises a traction column, an installation support and protection mechanisms. The protection mechanisms are used for fusing melt in the protection mechanisms when the circuitis abnormal and achieving the purpose of protecting the circuit, a plurality of groups of the protection mechanisms are arranged, the melt in the protection mechanism in work is fused, the protectionmechanism is matched with the traction column and enables the next group of the protection mechanism to automatically replace the protection mechanism after the melt is fused, the knob reset device comprises a knob switch, a closing mechanism and a wiring mechanism, the wiring mechanism is used for being connected with the circuit in series, the knob switch is used for being manually opened and closed by a user, and the closing mechanism is used for receiving opening and closing signals of the knob switch and finally matched with the wiring mechanism to control opening and closing of corresponding electrical equipment.
Owner:WENLING SHENLONG ELECTROMECHANICAL

Tubular bus connection structure

The invention discloses a tubular bus connection structure, which is used for realizing electrical conduction of incoming and outgoing lines of a switch cabinet after being inserted into a socket of the switch cabinet. The tubular bus connection structure comprises a conductor connector, a tubular bus, a silicone rubber insulation member, a fastener and a strain supporting member, wherein the conductor connector is fixedly connected to the top part of the tubular bus, and is used for being inserted into the socket of the switch cabinet so as to be electrically connected with conductors of the socket; the silicone rubber insulation member sleeves the outer surface of a part between the portion (positioned below the conductor connector) of the tubular bus and the portion (positioned inside the switch cabinet) of the tubular bus when the tubular bus is in operation, and is used for carrying out insulation and electrical isolation on the socket of the switch cabinet; the fastener is mounted under the silicone rubber insulation member, and is used for being fixedly connected with the switch cabinet when in operation; and the strain supporting member comprises a metal force bearing ring and a semiconductive silicone rubber ring covering the metal force bearing ring. The tubular bus connection structure meets the development requirements for the through-flow performance and miniaturization of the switch cabinet, and can upgrade the rated current without changing the existing switching equipment.
Owner:GCA CO LTD
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