47results about How to "Avoid Electric Shock Hazards" patented technology

The invention discloses an information device, which comprises a base body and a connection part arranged at the left side of the base body. The base body is provided therein with an empty groove. The upper side and the lower side of the empty groove are both provided with a first sliding groove. Each sliding groove is provided with a stud bolt. The left side end of the stud bolt is connected with a motor. The right side inner wall of the empty groove is provided with a first groove part; the left side inner wall of the empty groove is provided with an electrical connection rod. The empty groove is provided therein with a push-and-pull block whose upper side and the lower side probe into the first sliding grooves at the upper side and the lower side of the empty groove and which cooperates and is flexibly connected with the empty groove. The push-and-pull block inside the first sliding grooves is in threaded connection and cooperation with the stud bolt. The left side end face of the push-and-pull block is provided with a first electrical connection hole arranged corresponding to the first electrical rod; and between the left side end face of the push-and-pull block and the first sliding grooves are provided with electrical connection wires. The wall body at the left side of the base body is provided therein with an insertion and combination groove. The right side inner wall of the insertion and combination groove is provided with a second electrical connection rod. The information device of the invention has a simple structure, is convenient to operate, and achieves high security and connection fastening performance.

The invention discloses a charging device for an environmentally-friendly new energy electric car. The charging device comprises a charging box body fixed to a wall body, a containing cavity is formed in the charging box body, and first sliding grooves are formed in the upper side and the lower side of the containing cavity correspondingly. A screw is arranged in each first sliding groove, the left side end of the screw of each screw is in power connection with a motor, and a first sinking groove is formed in the inner wall of the right side of the containing cavity. First conductive pillars are arranged on the inner wall of the left side of the containing cavity, and the containing cavity is internally provided with a movable sliding block, wherein the upper side and the lower side of the movable sliding block extend into the first sliding grooves of the upper side and the lower side of the containing cavity correspondingly, and the movable sliding block is connected with the first sliding grooves in a sliding fit mode. The movable sliding block in the first sliding grooves is in threaded and matched connection with the screws, first power supply holes opposite to the first conductive pillars are formed in the end face of the left side of the movable sliding block, and an elastic power supply wire is arranged between the end face of the right side of the movable sliding block and the first sinking groove. An inserting groove is formed in the wall body of the left side of the charging box body, and second conductive pillars are arranged on the inner wall of the right side of the inserting groove. The charging device for the environmentally-friendly new energy electric car is simple in structure, convenient to operate and high in safety and connecting fastening property.

The embodiment of the invention discloses a non-isolation type photovoltaic grid-connected inverter comprising an inversion unit, a leakage current sensor, a control unit, a passive device and a controllable switch. The leakage current sensor is connected with the alternating-current side of the inversion unit, the control unit is connected with the inversion unit and the leakage current sensor, one end of the passive device is connected with the direct-current side of the non-isolation type photovoltaic grid-connected inverter, and the other end of the passive device is grounded after penetrating through the leakage current sensor through a wire. The passive device comprises an equivalent resistor. The controllable switch is connected with the passive device in series. The control signal input end of the controllable switch is connected with the control unit so that it can be guaranteed that the non-isolation type photovoltaic grid-connected inverter still has the capacity for processing a leakage current fault under the condition that the alternating-current side is connected with an isolation transformer. In addition, the invention further discloses an isolation type photovoltaic grid-connected power generation system.

The invention relates to a high-voltage direct metering device which is attached to a high voltage power-line. The metering device comprises a voltage acquisition unit, a current acquisition unit, a first processing unit, a second processing unit and a transmitting circuit, wherein the voltage acquisition unit is used to directly acquire a first voltage signal from the power-line; the current acquisition unit is used to directly acquire a second voltage signal representing the real-time current value from the power-line; the first processing unit is used to receive the first voltage signal and the second voltage signal, change the signals to real-time voltage value and current value to convert to instantaneous power value, integrate the instantaneous value in a first preset time and output a first energy value signal; the second processing unit is used to receive the first energy value signal to accumulate and form a second energy value signal and transmit the second energy value signal every second preset time; and the transmitting circuit is used to receive the second energy value signal and transmit to a user-side receiving device.

An embodiment of the invention discloses an uninterruptible power supply UPS circuit backflow protection method, a UPS circuit backflow protection device and a UPS, which are used for solving the problem that a backflow protection device with a distance requirement is bound to be selected for the traditional mechanical backflow protection in the prior art, reduce the difficulty of device model selection, and decrease the system design cost. The UPS circuit backflow protection method comprises the steps of: acquiring an input voltage at an AC input port of the UPS; and controlling to disconnecta relay connected with a battery module in the UPS under the condition of determining that the input voltage is a DC voltage and the input voltage value is greater than a preset threshold value.

The invention discloses an intelligent control switch comprising a shell which is composed of a bottom shell and a surface cover which are fixed through mutual buckling. The intelligent control switch also comprises a control module which is arranged in the shell and a touch screen which is installed on the surface cover. The control module comprises a master control unit and multiple entity switches. The master control unit simulates multiple switch buttons which are corresponding to the entity switches in a one-to-one way and displays the multiple switch buttons on the touch screen. When a user presses one switch button on the touch screen, the master control unit controls the corresponding entity switch to be connected or disconnected. The intelligent control switch is diverse in function, and remote control can be realized through cooperation of an intelligent mobile phone of each person and an independent APP. Besides, timing control can be performed so that intellectualization of non-intelligent household and remote control of intelligent household without communication module can be realized. Meanwhile, the touch screen is adopted to act as a switch user touch area, and no gap is arranged between the switch buttons so that the risk of electric shock can be avoided. Besides, a temperature detection device is arranged, and power is automatically disconnected when electric leakage or failure occurs so that the safety is better.

The invention discloses a massager with a charging protection function. A relay is arranged on a control circuit of the massager, when the massager is charged or powered off and does not work, an output circuit of the relay is in a disconnected state, a current of a battery cannot be transferred to a massage disc, the massage disc, a wristband and the battery are isolated with one another, electric shock damage to a human body is avoided, and the use safety of a user is guaranteed. When the massager works, the output circuit of the relay is in a switched-on and connected state, the current of the battery is transferred to the relay through the control circuit and transferred to the massage disc through the output circuit, at the moment, the battery, the wristband and the battery are in electrical connection with one another, a micro-current loop is formed among the battery, the wristband, the human body and the massage disc, the current is transferred to the face through the wristband and the body, sebum and dirt on the face are adsorbed to the massage disc, the dirt on the fact is exported, and deeper cleansing of the face is achieved.

The invention provides a transformer framework preventing a winding lead wire from crossing. The transformer framework comprises a magnetic core groove and a winding framework body arranged at the endof the magnetic core groove; the outer wall of the magnetic core groove and the winding framework body form a winding groove for winding a primary coil and a secondary coil; the winding framework body comprises a primary framework body and a secondary framework body; the primary framework body extends outwards to be provided with a plurality of primary wire hanging columns distributed at intervals, each primary wire hanging column is provided with a primary pin perpendicular to the primary wire hanging column, and a primary wire crossing groove is formed in a gap of every two primary wire hanging columns; the primary framework body is provided with primary wire guiding grooves flush with or lower than the primary framework body and communicated with the primary wire crossing grooves, so that a lead wire of the primary coil winding the winding groove passes through the primary wire guiding grooves in a horizontal or obliquely-downward wire outlet mode, penetrates through the primary wire crossing grooves, bypasses the primary wire hanging columns and finally winds the primary pins, and a height difference is formed between the lead wire of the primary coil and the secondary coil winding the periphery of the lead wire. The transformer framework can achieve the full-automated production of a transformer.

The invention provides an auxiliary fire fighting device for a test of a power battery for a vehicle. The auxiliary fire fighting device comprises a testing table, a detecting table, an anti-explosioncover, an oil cylinder and a vacuum pump. The testing table is provided with the detecting table for storing a to-be-tested sample, the anti-explosion cover is arranged over the testing table, and the oil cylinder is connected with the anti-explosion cover and drives the anti-explosion cover to vertically move. The vacuum pump for pumping air in the anti-explosion cover is arranged at the top ofthe anti-explosion cover, a temperature sensor and a pressure sensor are arranged in the anti-explosion cover, and a travel switch is arranged on the side wall of the anti-explosion cover. The auxiliary fire fighting device for the test can be well applied to the situation that failure reactions occur in the testing processes of battery single bodies and modules, rapid reacting can be conducted, the safe and environment-friendly effects are achieved, burning failed samples can be efficiently protected in time, analysis and research on the samples in the later period are facilitated, and sufficient technology and data support can be provided for engineering research and development tests and product verification of relevant departments, drafting and amending of standard laws and rules, andthe like.

The invention relates to the technical field of electric power facility protection devices and robots, and discloses a remote control robot for cleaning bird nests. The remote control robot comprisesa pole climbing module, a main body trunk, a control module, a power supply module, a fan module and a remote control box; the pole climbing module is mounted on the front side of the main body trunk;the fan module comprises a fan, a motor and a fan bracket, and is mounted on the back of the main body trunk; the control module comprises a control box and a central controller, is fixedly mounted on the back of the main body trunk and is positioned below the fan module; and the power supply module comprises a power supply box and a storage battery, is fixedly installed on the back of the main body trunk and is located below the control module. Bird nests are cleaned through the robot, the falling risk existing in pole climbing cleaning of operation and maintenance personnel is reduced, andmeanwhile the electric shock risk caused by misoperation is avoided, the robot is supported by a wire rod, so that the operation stability of the robot can be improved; and single bird nest hidden danger treatment can be realized, the working efficiency is improved, and the loss of operation and maintenance units in manpower and material resources is reduced.

The invention discloses a ground socket, comprising a base and a socket body rotatably arranged on one side of the base. The socket body is provided with a static contact, a movable contact, a first elastic member, an operating mechanism, an interlocking mechanism and a power-off driving device. The interlocking mechanism has a locking state of the linkage operation mechanism and the movable contact, and an unlocking state in which the operation mechanism and the movable contact are disengaged; By linking the driving structure of the power-off driving device with the interlocking mechanism, the base pushes the drive structure to drive the interlocking mechanism to move from a locked state to an unlocked state when the socket body is closed, The ground socket realizes the power-off isolation protection of the ground socket in the unused state, and can also realize the quick power-off protection by manually operating the power-off driving device in the used state of the ground socket, soas to cope with the sudden situation, avoid the electric leakage accident and the electric shock hazard to people, and has the advantages of convenient operation, good practicability, safety and reliability.

The invention provides an electric power storage battery DC test system and a test method. The system comprises a controller, a load assembly, a signal alarm unit and a remote server; the controller comprises a portable processing terminal and a main control chip connected with the portable processing terminal, and the main control chip is connected with the load assembly, the signal alarm unit and the remote server; and the portable processing terminal comprises mobile terminal equipment capable of enabling an application program to be installed, and the portable processing terminal is connected with the main control chip through a wireless communication device. An automatic detection means and a wireless control technology can be used, performance detection tests can be performed on an electric power storage battery and a DC screen system, improvement of working efficiency is facilitated, and test accuracy is improved.

The invention belongs to the technical field of sockets. The technical problem solved by the invention is: the safety performance of the existing socket is low. The technical scheme of the present invention is: a fingerprint locking safety socket, including a safety socket and a control module, the safety socket and the control module are detachably connected, the safety socket is evenly provided with jacks, and the safety lock modules are arranged on the jacks, and the control module The front side is provided with a fingerprint identification module and an initialization setting button, and a central processing unit is arranged in the control module, and the fingerprint identification module is electrically connected with the central processing unit through the RS485 module, and the security locking module is electrically connected with the central processing unit through the RS485 module. The beneficial effect of the present invention is that it can effectively avoid various hidden dangers of electric shock and prevent electric shock risks caused by various accidents; it solves the inconvenience of socket management in public places, can effectively prevent irrelevant personnel from using sockets indiscriminately, and prevents unnecessary waste of electric energy loss.

The invention relates to the field of switch protection, and discloses a potential type electric leakage protection system, which comprises a zero line, a live wire, a closed magnetic flux, an electromagnet and a circuit breaker, and is characterized in that first ends of the zero line and the live wire are connected with a switch load end, and second ends are respectively connected to a unidirectional conductive tube and then are connected with a precision resistor from an output end of the unidirectional conductive tube; the precision resistor end connected with the zero line and the live line is connected with the input end of a first precision relay, the output end of the first precision relay is connected with a current-limiting resistor, and the tail end of the current-limiting resistor is connected with a ground wire, an electric appliance metal shell or a rack; the second ends of the live wire and the zero wire penetrate through the closed magnetic flux and then are connected with the circuit breaker switch, the closed magnetic flux is connected to the input end of the second relay, the output end of the second relay is connected with the first end of the electromagnet, thesecond end of the electromagnet is connected with the circuit breaker switch end, and the output end of the first relay is connected with the output end of the second relay. Potential safety hazardscaused by poor grounding and failure of the ground wire are effectively solved, and the power utilization environment is greener and safer.

The invention discloses a warm-keeping type life jacket. The life jacket comprises a life jacket body, wherein strainers are fixedly connected to the outer surface of the life jacket body, a sealing strip is installed on the outer surface of the life jacket body, fixing buckles are fixedly connected to the outer surface of the sealing strip, and the fixing buckles penetrate through the sealing strip; a waterproof layer is arranged on the outer surface of the life jacket body, a buoyancy layer is arranged at the bottom end of the waterproof layer, a heat conduction layer is arranged at the bottom end of the buoyancy layer, and a main heating module and a branch heating module are arranged at the bottom end of the heat conduction layer. According to the life jacket, the strainer, the sealingstrip, the fixing buckle, the waterproof layer, the buoyancy layer, the heat conduction layer, the storage battery, the heating wire, the main heating module, the heat conduction pipe and the sub-heating modules are arranged, so that the whole body of a to-be-rescued person can be kept warm, and the time for waiting for rescue is prolonged.

The invention relates to a power line clamp, in particular to a detachable bushing online monitoring connection clamp. The detachable bushing online monitoring connection clamp comprises an insertionportion, wherein reset fixing strips are symmetrically disposed on the insertion portion and are movable relative to the center of a hollow button; the reset fixing strips are connected with a fixinghole; the hollow button is connected to a clamping device for clamping a connecting post in a bushing through a first elastic member; the clamping device comprises a clamping member connected to the connecting post and is connected to the hollow button by a resetting device; the resetting device comprises a reset slide block connected to the first elastic member and a second elastic member connected to the clamping device; and the reset slide block and the second elastic member are disposed in a stopping ring. The detachable bushing online monitoring connection clamp has a reset function, canbe used repeatedly, and is convenient to replace and maintain.

The embodiment of the invention provides an LED lamp and a power supply control module thereof. The power supply control module is connected between an external power supply and an LED light source module, and comprises a step-down transformer and a control circuit, wherein a primary winding and a secondary winding of the step-down transformer are respectively connected to the external power supply and the LED light source module and used for converting high-voltage DC voltage input by the external power supply into a predetermined voltage range and then outputting the high-voltage DC voltageto the LED light source module connected with the secondary winding; and the control circuit is connected to the external power supply and the primary winding of the step-down transformer and used forcontrolling the working state of the step-down transformer. The power supply control module provided by the embodiment of the invention carries out control on the step-down transformer through the control circuit, the step-down transformer converts the high-voltage DC voltage input by the external power supply into the predetermined voltage range and then supplies the high-voltage DC voltage to the LED light source module, and the primary winding and the secondary winding of the step-down transformer are mutually isolated, so that the safety of power utilization is effectively guaranteed, andthe power supply for a longer distance can be realized.

The invention discloses a plane connector which comprises a jack panel and a base, wherein the jack panel and the base are clamped to form a connector housing, the base is provided with a first sliding rail region, a conductive terminal set, a rail platform element and a first sliding element; the first sliding region is arranged on the base, the conductive terminal set is arranged in the base and comprises a fire wire L electrode, a neutral wire N electrode and an earth wire E electrode which correspond to the jack panel; the rail platform element is arranged on the base and is positioned on one sides of the first sliding rail region, the fire wire L electrode and the neutral wire N electrode, the rail platform element upwards extends to form a first limit part, the first sliding element is positioned on the first sliding rail region and comprises an electric element and a concave part, the concave part is of a semi-arc shape, and corresponds to a jack of an earthing end on the jack panel, and the electric element is connected between the first limit part and the concave part. According to the invention, through clamping actuation of the first sliding element and the first limit part, electric shock hazards because a child inserts hands in the connector or a sharp object is inserted into the jack in a single-side form are avoided.

The present invention provides a junction box. The junction box comprises a housing, an inlet line terminal and an outlet line terminal. The housing is provided with an incoming line port and an outgoing line port, and the incoming line port and the outgoing line port are oppositely arranged on the housing. The inlet line terminal is arranged in the incoming line port, and the outlet line terminal is arranged in the outgoing line port. The inlet line terminal includes a voltage inlet line terminal, and the outlet line terminal includes a voltage outlet line terminal. The voltage inlet line terminal and the voltage outlet line terminal are corresponding and arranged at intervals, and a voltage shutdown switch is disposed between the voltage inlet line terminal and the voltage outlet line terminal. The junction box also comprises a voltage line handle, and the voltage line handle is hinged to the housing and connected with the voltage shutdown switch. When the outlet line terminal is wiring, a wiring worker switches the voltage line handle to an opening position, the voltage outlet line terminal of the outlet line terminal is powered off, and then the wiring worker is able to safely perform wiring operation on the voltage outlet line terminal, therefore the occurrence of an electric shock hazard is avoided and wiring worker's life safety is ensured.

The invention discloses a cordless handheld wall space grinding machine. The cordless handheld wall space grinding machine comprises an output assembly (1), a power assembly (2), a handheld shell assembly (3), an electrode holder (4), a power source (5), a grinding disc (6) and a dust collection device (7). The cordless handheld wall space grinding machine has the beneficial effects that a batterypack is arranged on the wall space grinding machine, the interference of a power cable is avoided, and electric shock potential safety hazards caused by the damage of the power cable are avoided; andthrough the mode of arranging the grinding disc right below the power assembly and the output assembly, and the occurrence of uneven factors when a wall is ground caused by unbalanced self center ofgravity of the machine is avoided. Dust collection fan blades are directly connected with the power assembly, the loss in the transmission process can be reduced, and the dust collection efficiency ofthe wall space grinding machine is improved.

The invention provides a wall surface controller and a smart home system, the wall surface controller comprises a seat body, a touch sensing assembly and an insulating plate, the seat body is provided with an accommodating cavity and an opening communicated with the accommodating cavity, and the touch sensing assembly comprises a panel and a touch sensing plate used for sensing that a user touches the panel. The insulating plate covers the opening, the touch sensing plate is supported on the face, facing the containing cavity, of the insulating plate, the panel is installed at the end, provided with the opening, of the base body, and the panel is located on the side, back to the containing cavity, of the insulating plate. When in use, the touch sensing plate is supported and fixed on the seat body through the insulating plate, so that the touch sensing plate does not need to be adhered to the panel, a maintainer can quickly detach and open the panel, and the panel is convenient to replace. Moreover, after a maintainer opens the panel in an electrified manner, the insulating plate can prevent the human body from touching the touch sensing plate, so that the electric shock danger can be prevented, and the safety is high.

The invention discloses an electric welding device which comprises an electricity connection seat and a plug part arranged on the left side of the electricity connection seat; a cavity is formed in the electricity connection seat; first sliding grooves are formed in the upper side and the lower side of the cavity; a spiral rod is arranged in each first sliding groove; the left side ends of the spiral rods are connected with motors; a first slotted hole is formed in the inner wall of the right side of the cavity; first electricity connection rods are arranged at the inner wall of the left sideof the cavity; a sliding block is arranged in the cavity; the upper side and the lower side of the sliding block enter into the first sliding grooves in the upper side and the lower side of cavity andare connected with the first sliding grooves in a sliding fit manner; the parts, in the first sliding grooves, of the sliding block are connected with spiral threads of the spiral rods in a fit manner; first electrifying holes opposite to the first electricity connection rods are formed in the end face of the left side of the sliding block; a circuit is arranged between the end face of the left side of the sliding block and the first slotted hole; an inserting cavity is formed in a wall body on the left side of the electricity connection seat; and second electricity connection rods are arranged at the inner wall of the right side of the inserting cavity. The electric welding device is simple in structure and convenient and quick to operate, power supply connection can be controlled automatically, the inserting connection firmness and safety are relatively high, electric shock danger caused by accidental touch is prevented, and the power supply requirement of an existing welding machine is met.

The invention discloses an infant bathing utensil. The infant bathing utensil comprises a container body, an electric device and a low-voltage charging module are arranged on the container body, the low-voltage charging module supplies power to the electric device, a bin for containing the low-voltage charging module is arranged on the container body and comprises an opening and closing door located below the low-voltage charging module and used for supporting the low-voltage charging module, and when the opening and closing door is opened, the low-voltage charging module falls out of the bin relying on the self-gravity. The infant bathing utensil has the advantages that the low-voltage charging module is supported by the opening and closing door and is arranged in the bin to supply power to the electric device, the opening and closing door is opened when high-voltage alternating-current power is needed for charging the low-voltage charging module, the low-voltage charging module falls out of the bin under the self-gravity, and the low-voltage charging module and the electric device are disconnected; a user cannot charge the low-voltage charging module when the low-voltage charging module is connected with the electric device and can only take out the low-voltage charging module for independent charging, and the electric shock potential safety hazard caused by electric leakage on infants in the using process is avoided.

An embodiment of the invention discloses an uninterruptible power supply UPS circuit backflow protection method, a UPS circuit backflow protection device and a UPS, which are used for solving the problem that a backflow protection device with a distance requirement is bound to be selected for the traditional mechanical backflow protection in the prior art, reduce the difficulty of device model selection, and decrease the system design cost. The UPS circuit backflow protection method comprises the steps of: acquiring an input voltage at an AC input port of the UPS; and controlling to disconnecta relay connected with a battery module in the UPS under the condition of determining that the input voltage is a DC voltage and the input voltage value is greater than a preset threshold value.

The invention discloses protection equipment for a charging pile, and relates to the technical field of charging piles. The protection equipment for the charging pile comprises: a main body which is arranged on a plane and comprises an accommodating box which is internally provided with an accommodating space; a cable which is arranged in the accommodating box; a charging head which is arranged on the outer side of the accommodating box; a roller which is arranged in the accommodating box, wherein the surface of the cable is attached to the periphery of the roller; a locking device which is arranged on the outer side surface of the accommodating box, and the charging head is inserted into the locking device; a flow guide device which is arranged in the accommodating box; a collecting device which is arranged in the accommodating box; and a protection device which is arranged in the locking device and connected with the locking device in a matched mode. The protection equipment is used for solving the problems that: in the prior art, after being pulled out, a cable of a charging gun cannot be automatically recycled and is rubbed and dragged on the ground, so that the cable is abraded, and the charging gun cannot be automatically and firmly adjusted in the process that the charging gun is inserted into a charging base.