59results about How to "Avoid connection errors" patented technology

The present invention relates to a loudspeaker, which is used in a mobile communication device such as a portable phone and includes two loudspeakers in one casing, and provides the loudspeaker having stable characteristics (e.g., a sound-pressure frequency characteristic). According to the loudspeaker of the present invention, yoke (3A) is integrated by insert-molding in molding frame (1C). Thus, inserting variations caused by connecting variations, which is generated between the frame and the yoke in assembling a conventional loudspeaker, can be restricted.

A fan system is provided which keeps a record of the electric connection between a battery ECU and an accessory battery and starts a fan if it is determined based on the record that the electric connection between the battery ECU and the accessory battery was just in an unconnected state.

The invention relates to a programmable free-splicing electronic building block module, which comprises a power supply module, a control module and functional modules, wherein the functional modules comprise one or more of an interaction module, a communication module, a detection module and an execution module, the modules can be connected through a bus in any order, the modules are unified in interface type, and the modules are electrically connected through fool-proof mechanism interfaces. Therefore, there is no need to involve too much boring underlying knowledge for students, the interests of the students are fully mobilized, and the imagination of the students is given into full play. The design of the invention does not need to involve the underlying knowledge, thereby dispensing alot of theoretical learning in the preliminary stage, enabling users to focus on implementation of functions in the preliminary stage, and learning step by step under the premise of cultivating the interests.

A contactor comprises, for each phase, a pair of contact devices which comprise a connection strip and at least two conductors provided with a stationary contact, and a movable contact bridge able to close the two stationary contacts or not. According to the invention, the contact device is formed from superposition of a number of pieces equal to the number of conductors, each piece comprising one of the conductors and a connection part corresponding to the connection strip but of smaller thickness. Each of the pieces can be made from folded metal. The connection parts are coupled to one another to form the connection strip by means of holes at the same time as the sets of bars are secured thereto.

The invention discloses a low torsion moment ball valve for a fuel gas vertical pipe, which is a ball valve with novel sealing structure; a valve body is connected by a screw thread so as to reduce the weight of the valve; a sealing ring is arranged in a sealing groove on the valve body so that the sealing ring does not fall off at any state, the reliability of the valve is ensured, the torsion of the valve opening and closing is reduced, simultaneously a slotting disk spring is used for providing the pre-pressure of the valve, and a specially designed sealing ring greatly reduces an operating torsion; and after the sealing ring is burned at high temperature, the slotting disk spring pushes a sphere so that the sphere is contacted with an auxiliary valve body so as to form a metal hard seal which avoids the internal leakage of the valve and has the fire prevention function. In addition, a special designed valve opening mechanism prevents the possibility of incorrect operations.

The invention discloses a life support system for a large-depth underwater target. The life support system comprises a sonar array, an integrated plug device, an acoustic beacon and an integrated plugsocket which are mounted on the underwater target, and a laying and recycling device, a centralized control device, an emergency air source device and an emergency power supply device which are mounted on a water surface platform, wherein the integrated plug device is respectively connected with the laying and recycling device, the centralized control device, the emergency air source device and the emergency power supply device through a combined umbilical cord; the integrated plug device is connected to an ROV (Remotely-Operated Vehicle). After the underwater acoustic communication is established by using the sonar array and the acoustic beacon to determine the position information of the underwater target, the ROV is controlled to move and rotate by using the centralized control deviceso as to insert the integrated plug device and the integrated plug socket; gas transmission, liquid transmission, electric energy transmission and data transmission are performed with the underwater target through the combined umbilical cord so as to implement state monitoring and material replenishment for the large-depth underwater target.

The invention relates to the technical field of wireless communication, and provides an antenna test system, method and device, electronic equipment and a storage medium, and the system comprises a radio frequency device for outputting a radio frequency signal and a to-be-tested multi-port antenna, and especially comprises a control device, a switching device and at least two power dividers. Eachpower divider is connected with the switching device and the radio frequency device; the control device is connected with the switching device and used for determining a target power divider meeting test requirements according to current test requirements and controlling the switching device to enable the target power divider to be connected with the to-be-tested multi-port antenna. A plurality ofpower dividers corresponding to the test requirements are adopted, the on-off condition of the switching device is controlled according to the test requirements, and the target power divider meetingthe requirements can be connected with the to-be-tested multi-port antenna, so that different working states of the to-be-tested multi-port antenna can be automatically tested, the overall test efficiency is improved, a connection error caused by disassembly and assembly can be avoided, and the test accuracy is improved.

A teleconferencing system such that misconnection between a teleconference terminal and a communication controller is prevented, the use of the communication controller is optimized, and the conference condition can be set/modified through the teleconference terminal. Information about a first connection destination number is given to the teleconference terminal, an an ID number and password and given to each conference attendance. Information about the application of having a conference, the ID numbers and passwords of the conference attendances are recorded in a reception terminal when the reservation for the conference is made. When the application is accepted, the teleconference terminal sets up a connection to the reception terminal by using the first connection destination number and transmits the information about the ID numbers and passwords.

Articles are magnetically tagged by a spatial distribution of passive magnetic elements. Each such magnetic element comprises a layer of soft magnetic material characterised by high permeability, low coercivity and a non-linear B-H characteristic, and formed as a discrete region of such material. Each such magnetic element also has at least one second layer of magnetic material capable of being permanently magnetised at least in a region adjacent the first layer to provide a magnetic bias for the magnetic element. The bias of individual such magnetic elements in the spatial distribution and the particular spatial nature of the distribution enables the article to be magnetically encoded.

The present invention provides an air blower through which ejected air is free of dust and the like. The air blower (1) is provided with a main body (2) and a dedusting part (3). The main body comprises a main part (5) and a scroll air supplying part (7). A motor (4) is disposed in the main part. A centrifugal fan (6) is in-built in the air supplying part and a cylindrical ejecting port (24) is formed in the air supplying part. The dedusting part can be mounted on the main body in a removable manner. The main body and the dedusting part are arranged in an up-down manner. The dedusting part is mounted at the upstream side of the centrifugal fan. The motor is disposed in the main body in a manner that the rotating axis (4A) of the motor is longitudinal, and the ejecting port protrudes transversely from the periphery of the air supplying part, and therefore dust in the dedusting part at the upstream side of the centrifugal fan is removed, dedusted air is ejected from the ejecting port, and the ejecting position is not contaminated by dust or the like. The rotating axis of the motor is longitudinally arranged so that the overall air blower is longitudinally long, can be hung on shoulders through shoulder belts and can be easily used.

The invention provides a novel wiring board. The novel wiring board comprises a base and a plurality of terminal connecting devices. The base is in a step shape. Each step is provided with one terminal connecting device. Each terminal connecting device comprises a plurality of control wire terminal modules and a plurality of power terminal modules, all sets of control wire terminal modules are horizontally arranged and are parallel to one another, and the upper set of control wire terminal module and the lower set of control wire terminal module adjacent to each other are not located on the same vertical center line. The power terminal modules are horizontally arranged below the control wire terminal modules. Each control wire terminal module comprises a first inserting hole, wherein the first inserting hole is internally provided with a control wire terminal. Each power terminal assembly comprises a second inserting hole, wherein the second inserting hole is internally provided with a power terminal. The novel wiring board has the advantages that the structure is simple, installing is easy, errors are not likely to be made, space is saved, the number of the terminals is large, and the using efficiency is high.

The invention relates to a single-pipe single-wire construction material and a construction method for circuit transformation of a home decoration project. Its construction materials include: galvanized wire pipe and accessories - ∮10×1.0×3.8m galvanized wire pipe; ∮10 galvanized wire pipe straight head, screw joint; ∮10 galvanized wire pipe elbow; galvanized metal Junction box; PVC flame retardant wire tube and accessories; ∮10×1.0×2.5mPVC flame retardant wire tube; ∮10PVC flame retardant hose;∮10PVC flame retardant wire tube straight head and screw joint;∮10PVC flame retardant wire tube elbow ; Dedicated blue PVC flame retardant box and junction box, etc. Construction piping includes ground piping, wall surface and ceiling piping, socket line piping, etc., as well as piping and threading forms, line pipe fixing methods, wiring threading standards, wiring box installation standards, and wall and ground wiring groove standards. The invention effectively solves the difficult problem in the construction of electric wire pipelines in concrete walls.

The invention discloses a backlight light bar adapter plate which comprises an adapter plate body, the adapter plate body comprises a first adapter face and a second adapter face opposite to the first adapter face, the first adapter face is provided with light bar adapter ports corresponding to light bars in number and position in a one-to-one mode, and the second adapter face is provided with at least one control adapter port; and the switching circuit is arranged on the switching plate body and is connected with the light bar switching interface and the control switching interface. The backlight light bar adapter plate is provided with light bar adapter ports corresponding to the light bars in number and position in a one-to-one mode so as to be connected with the connecting ends of the light bars in a one-to-one correspondence mode. The controller is provided with a control adapter to be connected with a control panel; according to the adapter plate, the adapter circuit is arranged on the adapter plate body, the light bar adapter ports and the control adapter ports are connected through the adapter circuit, the light bars and the control panel are connected, excessive connecting wires do not need to be arranged to connect the light bars and the control panel, the use number of the connecting wires is reduced, assembly of the backlight module can be simplified, and the backlight module is more convenient to use. Finally, the research and development and production cost of the backlight module is reduced.