30results about How to "Simplifies wiring design" patented technology

An electric power supply system, equipped on a mobile body to supply electric power to a drive apparatus that functions as a drive source of the mobile body, that includes a first power source apparatus that generates and supplies electric power to the drive apparatus, a second power source apparatus provided separately from the first power source apparatus and that supplies electric power to the drive apparatus, an insulation type converter provided between an electric power supply section including at least one of the first power source apparatus and the second power source apparatus, and a mobile body drive section including the drive apparatus, and ensuring insulation between these sections while transmitting electric power from the electric power supply section to the mobile body drive section. An increase in the supply voltage and adequate insulation performance can both be achieved when supplying power to a drive apparatus.

The invention provides systems, devices, connectors and methods to send compressed audio video serial digital signals thru local systems with significantly reduced bandwidth requirements and device costs, over longer cable runs and with higher system flexibility (i.e. connection topologies and scalability), with much simpler and installation friendly single coax cables and connectors, without introducing any signal quality losses or delays comparing to the current uncompressed digital systems like HDMI, DVI, DP or SDI when using the already compressed audio video content. The invention also provides solutions for integrating the uncompressed audio video content and Internet content into this system. These systems, devices, connectors and methods are collectively called XDI (Extended Digital Interface).

The invention relates to a cable for testing properties of a battery pack, which comprises a conductive wire core and an outer insulating sheath coating the peripheral surface of the cable, wherein the conductive wire core comprises at least one pair of voltage testing wires and at least one pair of temperature testing wires, each pair comprises at least two wires, each voltage testing wire and each temperature testing wires are in the stranded wire structure formed by multiple strands of conductive wires, and each pair of the voltage testing wires and each pare of the temperature testing wires are respectively provided with an inner shielding layer coating the peripheral surface of the voltage testing wires and the temperature testing wires, as well as an inner shielding sheath coating the peripheral surface of the inner shielding layer. By adopting the cable, the number of the testing wires connected between the battery pack and a testing device is significantly reduced, not only the wiring design is simple, and wire connection is time-saving, but also the management and the error tracing are convenient, the maintenance cost is reduced, and the risk of heavy losses due to human negligence is avoided. The cable can meet the requirement of external common-mode capacitance coupled noise prevention; in addition, the inner shielding layers and outer shielding layers are arranged in the cable, thereby further inhibiting the common-mode capacitance coupled noise, reducing the external interference and improving the signal-to-noise ratio and the testing precision. The cable is also conductive to the reduction of the wire diameter of the cable.

The invention discloses a battery pack and an electric tool, the battery pack comprises a circuit board, a plurality of battery cell units, a plurality of voltage detection lines, a first wiring terminal and a control board, each battery cell unit comprises one or more electrically connected battery cells, and the positive electrode end and/or the negative electrode end of each battery cell unit are/is electrically connected with a conductive path on the circuit board; the voltage detection line is used for detecting the voltage of the battery cell unit or the battery cell; the control panel is connected with each voltage detection line to acquire the voltage of the battery cell unit or the battery cell, and the first wiring terminal is arranged on the circuit board and is configured to electrically connect at least part of the voltage detection lines with the positive electrode end and/or the negative electrode end of the battery cell unit through a conductive path on the circuit board. At least part of the voltage detection line is connected with the positive electrode end and/or the negative electrode end of the battery cell unit through the circuit board and the first connecting terminal, so that the wiring design is simplified, the wiring difficulty is reduced, the problems of easy line breaking and possible short circuit caused by complete welding of the voltage detectionline are also avoided, and the reliability is high.

The invention provides a planar packaging piece and a production method thereof. The planar packaging piece includes: a base island, a chip pasted on the base island, an inner pin connected with the chip through a welding line, outer pins connected with the inner pin, an interconnection island which is a strip-shaped structure arranged on the inner pin so that the outer pins are interconnected together, and a plastic package body fixedly packaged on the base island, wherein the inner pin, the welding line, the chip and the interconnection island are packaged in the plastic package body, the outer pins are arranged outside the plastic package body, and all the outer pins are positioned on the same plane. According to the invention, a ground wire can be directly arranged between a chip grounding end and the interconnection island, and the ground wire is prevented from being arranged at the edge of the base island. In this way, an external PCB wiring design of the whole packaging piece can be simplified, the base island in the packaging piece is adjusted to the size more matched with the chip, meanwhile, silver does not need to be plated on the base island again (the bonding performance of the contact surface of silver and the plastic packaging material is poor), and a risk of carrier layering is reduced; and routing is performed on the interconnection island so that routing flexibility is improved, and situations of wire crossing and dense routing can be effectively avoided.

The application discloses a communication control device. A first circuit board is electrically connected with a second circuit board. The second circuit board is electrically connected with an interface board. The second circuit board contains at least one lightning protection module. The lightning protection module has a first-stage lightning protection circuit and a second-stage lightning protection circuit. When the external interface of the interface board receives a transient overvoltage/over-current, there will still be a high residual voltage after the current flows through the first-stage lightning protection circuit, and the second-stage lightning protection circuit will further reduce the residual voltage to a lower voltage and clamp the voltage at an allowable value. The allowable value is tolerable for the protected first circuit board in the later stage, so that the internal components of the first circuit board will not be damaged by the impact of the transient overvoltage/over-current. The first circuit board and the second circuit board are electrically connected through insertion of a metal component and are supported and fixed by each other. The integrated designcan not only reduce the volume of the circuit and the complexity of manufacture, but also reduce the residual voltage of the circuit and subsequent sensitive circuit problems.