31results about How to "Simple installation and wiring" patented technology

The invention discloses a low-temperature plasma discharge power supply device. The power supply device comprises a power supply casing. A control unit, a switching power supply, an inverter, a dry type transformer and a power module are arranged in the power supply casing. The front side wall of the power supply casing is provided with an output voltage indicator, a running state indicator, a power switch capable of starting and shutting down discharge of the switching power supply, a manual adjustment knob, a front end heat dissipation hole and an output power indicator. The dry type transformer is adopted, and the device space is saved. A cooling fan and an internal cooling fin and the like are utilized, so that a power device can be effectively cooled, and the influence of temperature rise on the device is reduced. High voltage output terminals are isolated through a voltage-resistant insulting material, and a socket is in the high voltage protection wiring form, can be connected with a discharge module quickly and is easy to install, debug and maintain.

The invention relates to a harvester control system, belonging to the technical field of the harvester and comprising a starting system, a charging system and an illuminating system. The harvester control system is characterized in that the control system comprises a controller, a steering control and indication system, an electric control harvesting system, an electric control grain conveying system, a monitoring instrument of a whole machine and an alarm system, wherein the controller is connected with and controls the steering control and indication system, the electric control harvesting system, the electric control grain conveying system, the monitoring instrument of the whole machine and the alarm system. The harvester control system has the advantages of functions of concentrated monitoring, display, control and alarming, improved automation, strong adaptability, convenient maintenance, simple and comfortable operation, low labor intensity and high operation efficiency and the like.

The invention discloses a portable transformer substation noise imaging positioning detection device which comprises an imaging displaying mechanism and a noise detection mechanism which are connected via a coaxial cable, the noise detection mechanism comprises a noise sensor of which a matrix is arranged on a quadratic surface structure and a signal pre-treatment circuit; the imaging display mechanism comprises a display, a processor and a data memory connected with the processor; the processor is provided with a sound intensity mapping processing module for driving and displaying a sound intensity mapping figure to quickly judge a noise resource. According to the position of equipment to be detected in a transformer substation, a cubic data module of a quadratic surface is established, a three-dimensional coordinate system is established on the basis of the cubic data module, and pre-treatment and pre-displaying of a relative noise signal are performed, spurious imaging information is used for noise imaging, and quick fault positioning is achieved by analyzing a color ring band. The portable transformer substation noise imaging positioning detection device effectively improves the efficiency of overhauling and maintaining the transformer substation, is simple, convenient and practical, and has very high promotion and application values.

The invention discloses an indoor positioning and verification system based on WiFi, and the system comprises at least one RFID reader which is dispersedly disposed in a positioning region; at least three wireless AP machines dispersedly arranged in the positioning area; a mobile device connected with the at least three wireless AP machines and acquires wireless signal intensity; a positioning server used for acquiring wireless signal intensity and positioning the mobile equipment by adopting a differential algorithm. The mobile device is provided with an RFID electronic tag. When the mobile device enters a preset signal range of the positioning area, the RFID electronic tag sends an RFID signal to the outside. The at least one RFID reader receives the RFID signal and confirms that the mobile device is in a preset signal range. WiFi positioning is adopted for the mobile device, and when the mobile device enters a preset signal range, the RFID electronic tag is activated to send out a radio frequency signal. The RFID reader acquires the radio frequency signal and confirms that the mobile device is in a preset signal range, which indicates that the mobile device does not have a falsereport.

The invention belongs to the technical field of electric switches, and provides a combined button with a ball, wherein a motor starting button and a motor shutdown button are integrated on the combined button with the ball. A rotating core and a sliding core are arranged on the inner side of a large barrel, the rotating core can only rotate left and right in the large barrel and can not slide up and down, and the sliding core can only slide up and down on the inner side of the rotating core. When the outer circle of the rotating core of the combined button with the ball is rotated by hand, a slope under the rotating core is used for pushing a normally-open contact push rod to enable a normally-open contact to be turned on, a contactor coil is powered and switched on, a main contact of a contactor is turned on, and a motor rotates; when an upper cover is pressed by hand, through the sliding core, a normally-closed contact push rod is pushed to enable a normally-closed contact to be turned off, the contactor losses power and stops working, and the motor stops working. The combined button with the ball has the advantages that installation and wiring are simple, and operation is simple and clear.

Provided is a multi-machine frequency converter, which may comprise: a master control unit, and N1 execution units coupled in series by means of a communications port, said N1 execution unit sharing a common DC bus; the first communications port of the master control unit is connected to the second communications port of the first of the N1 execution units; the N1 execution units comprise N11 rectifier units and N12 inverter units; N11 is a positive integer, and N12 is a positive integer greater than 1; said first execution unit is an execution unit located at an edge position of said N1 execution units connected in series by means of a communications port. The technical solution provided by the embodiments of the present invention is conducive to reducing the complexity of frequency converter wiring configurations in the context of multiple machines, improving the stability and reliability in multi-machine operation of frequency converters.

The invention discloses an electric bicycle intelligent charging system based on NB-IOT. The system comprises a user terminal, a cloud platform server and a plurality of direct current charging piles, and is characterized in that each direct current charging pile is provided with a first NB-IOT communication module which is in communication connection with the cloud platform server; the direct current charging pile is further provided with a control system; a man-machine interaction module is used for receiving a charging instruction of the cloud platform server; a microprocessor is used for controlling the operation of the direct current charging pile; an electrode detection module is used for detecting the polarity of a storage battery connected with the direct current charging pile; a power supply module is used for providing dynamic output voltage and current for charging the storage battery; a power supply module charges the storage battery by adopting a self-adjusting three-stage charging method; and an electric energy output control module is used for controlling on-off of a storage battery charging circuit. The polarity of the storage battery can be detected to avoid damage to the storage battery, a self-adjusting three-stage charging method is adopted to charge the storage battery, damage to the storage battery caused by charging when the storage battery is over-discharged is further avoided, and a safe, convenient and efficient charging system is provided for a user.

The invention relates to a one-line bus type ward calling system which belongs to the technical field of calling system. The system comprises a temperature sensor, a memory, a single chip, a display, a voice circuit, a speaker and a power supply, wherein an input end of the memory is connected with the temperature sensor, an output end of the memory is connected with the single chip; an LED display is connected with an output end of the single chip; an input end of the voice circuit is connected with the output end of the single chip; and an output end of the voice circuit is connected with the speaker. The temperature sensor measures temperature; and when fingers are put on the temperature sensor, the temperature sensor senses the temperature value and sends the temperature value to the single chip. The single chip judges the temperature rise on one hand, and sends voice alarm of ward number on the other hand; and the ward number is displayed by the LED display. The one-line bus type ward calling system has the advantages of low maintenance cost, good using effect and the like, and is simple, reliable to use and convenient for the nurses or doctors to see or listen.

The invention discloses a motor temperature protection device and especially relates to a motor-dual-protection automatic control device. A first branch is formed by an experiment button SB, a stop button SR, a contactor KM, a normally-closed contact 2KV-1 of a relay 2KV, a normally-closed contact 4KV-1 of a relay 4KV and a normally-closed contact FR-1 of a thermal relay FR, wherein the experiment button SB, the stop button SR, the contactor KM, the normally-closed contact 2KV-1 of the relay 2KV, the normally-closed contact 4KV-1 of the relay 4KV and the normally-closed contact FR-1 of the thermal relay FR are successively connected in series from a U phase of a three-phase power supply; the first branch is connected to a W phase of the three-phase power supply. The experiment button SB is connected in parallel with a normally-open contact KM-4 of a contactor KM, a normally-open contact 1KV-2 of an intermediate relay 1KV and a normally-open contact 3KV-2 of an intermediate relay 3KV. A second branch is formed by a contact 1SP-1 of a first electric contact air pressure gauge, a normally-closed contact KV-1 of the contactor KM and the intermediate relay 1KV, wherein the contact 1SP-1 of the first electric contact air pressure gauge, the normally-closed contact KV-1 of the contactor KM and the intermediate relay 1KV are successively connected in series from an anode of a direct-current power supply; the second branch is connected to a cathode of the direct-current power supply. By using the device of the invention, when one electric contact meter is damaged, a standby electric contact meter is rapidly used so that equipment is guaranteed not to be damaged easily and production reliability is increased.

The invention belongs to the technical field of garbage cans, and discloses an intelligent garbage can capable of being automatically disinfected. The intelligent garbage can comprises a movable can body and a wall-mounted fixed cover body; the cover body is in sealed fit with the top part of the can body, and an induction device is installed in one side of the cover body in an embedded manner; the cross section of the cover body is of an inverted U-shaped structure, and the top part of the can body is sealed in a U-shaped groove of the cover body; the outer wall of one side of the cover bodyis used for wall-mounted fixing, and the other side of the cover body is provided with a moving mechanism; the moving mechanism is used for opening the cover body, and when the cover body is opened, the can body can be taken out from the cover body; and at least one flip-open cover which can automatically overturn is embedded into the top part of the cover body, and the at least one flip-open cover cooperates with the induction device to execute contactless automatic opening and closing of the intelligent garbage can. In conclusion, the intelligent garbage can provided by the invention has theadvantages of being automatically open and close, and automatically disinfected, and having high safety, a reasonable structure, low cost and convenient use.

The invention discloses a cable applicable to an environment in an oil and gas well and used for connection of a wireless transmitting antenna as well as a production technology thereof. The cable comprises a center filling member, a plurality of insulated wires uniformly distributed at the periphery of the center filling member as well as an outer sheath wrapped outside the center filling memberand the insulated wires. The cable disclosed by the invention has the advantages that a high-temperature-resistant enameled round copper wire is adopted, and the overall outer diameter of the cable isreduced, so that long-term use reliability of the cable is improved, and service life of the cable is prolonged; meanwhile, an insulating layer does not need to be extruded outside a conductor in a production process, so that production working procedures of the cable are fewer, and the technology is simple; long-term tolerable temperature of the insulated wires and an outer sheath material reaches more than 200 DEG C, and the use reliability of the cable in a down-hole high temperature environment is improved; and the outer sheath adopts a pushing type technology, and the outer sheath material fills gaps among the insulated wires, so that the cable can stop high temperature liquid moisture from being penetrated into the interior of the cable in a down-hole high temperature and high humidity working environment, and service life of the cable is prolonged.