33results about How to "Avoid problems such as poor contact" patented technology

The invention discloses a vertical continuous electroplating device which is used for carrying out vertical continuous electroplating or cleaning on a circuit board. The vertical continuous electroplating device comprises a driving wheel group, a driven wheel group, a first conveyor belt, a second conveyor belt, a conductive guide rail, a rack guide rail, a plurality of first conductive hangers, a second conductive hanger, flexible cables and a rack head, wherein the driving wheel group and the driven wheel group are in transmission connection through the first conveyor belt and the second conveyor belt; the first conductive hangers are electrically connected with the second conductive hanger through the flexible cables; the first conveyor belt and the second conveyor belt are driven, so that the first conductive hangers move along the conductive guide rail; the second conductive hanger moves along the rack guide rail; and the rack head is arranged at one end of the second conductive hanger, and is used for connecting a circuit board. According to the vertical continuous electroplating device, the conductive guide rail does not vibrate when the circuit board vibrates through two separate guide rails of the conductive guide rail and the rack guide rail, so that the problems such as poor contact of the conductive guide rail are avoided; and the electroplating effect is improved.

The invention relates to a geomagnetic vehicle detector which specifically comprises a PCBA, a battery, a support and a shell, wherein the shell comprises a shell body and a shell cover; the shell body comprises an inner shell body and an outer shell body, the inner shell body is a square shell body, and the side wall of the outer shell body is a cylindrical ring which encloses the upper end of the inner shell body; the top part of the inner shell body is lower than the top part of the outer shell body, and the bottom face of the outer shell body is connected to the side wall bottom end of the outer shell body and the side wall of the inner shell body; the shell cover comprises an inner cover and an outer cover; the bottom face edge of the inner cover and the side wall top face of the inner shell body are welded to form an inner sealing chamber; the bottom face edge of the outer cover and the side wall top face of the outer shell body are welded to form an outer sealing chamber; one end of the support is a PCBA clamping part, the other end is a battery support, the PCBA is fixed on the PCBA clamping part, and the battery is fixed on the battery support; and the support is sealed inside the inner sealing chamber through arrangement of the PCBA clamping part towards the bottom part of the inner shell body. The geomagnetic vehicle detector provided by the invention can enhance waterproof performance and detection accuracy of the geomagnetic vehicle detector as well as impact resistance of the shell body.

The invention relates to an economical cable branch box, which comprises a metal outer box, a conductive grounding bar and at least one conductive wiring bar. A pair of insulating supports are arranged in parallel to the inner side of the metal outer box; the at least one conductive wiring bar is vertically arranged between the pair of insulating supports, and the two ends of the conductive wiring bar are fixedly connected with the corresponding insulating supports respectively; one side of the conductive wiring bar is provided with a plurality of wiring columns in linear arrangement, and one end of each wiring column is provided with a locking device; the conductive grounding bar is connected with the inner side of the metal outer box and is conductive; and the metal outer box is provided with a plurality of air holes and a plurality of inlet and outlet holes, wherein the inlet and outlet holes are in one-to-one correspondence with the wiring columns. Compared with the prior art, the economical cable branch box is simple to manufacture, low in cost, more flexible to use, convenient and quick, more reliable in connection and better in conduction effect and can prevent the problem of poor contact and the like; and the conductive wiring bar is arranged to the inner side of the metal outer box through the insulating supports, and besides, the conductive grounding bar can be grounded, so that a dual protection effect is achieved, the problems of electric leakage and the like can be prevented more effectively, and a safer use effect is achieved.

The invention discloses a printed circuit board and a test fixture. The printed circuit board comprises a bottom board and one or more connecting points; the bottom board comprises a plurality of layers; the one or more connecting points are positioned on the outermost layer of the bottom board; each connecting point comprises a contact type bonding pad and a conversion signal hole; the contact type bonding pads are connected with the conversion signal holes through parallel microstrip lines; and the conversion signal holes are used for being connected with other layers of the bottom board. Bythe adoption of the scheme, when SMA connector PINs are in crimp contact with the bonding pads of the printed board, full contact is ensured to be formed, so that the problems of poor contact and thelike are avoided, and the impedance of the part is ensured to be continuous as much as possible.

The invention relates to a debugging method and terminal and a controlled device. The debugging method includes the steps of generating a debugging instruction, and sending the debugging instruction to the controlled device through a wireless communication module so that the controlled device can debug a load according to the debugging instruction. According to the technical scheme, the controlleddevice and the debugging terminal are wirelessly connected through respective wireless communication modules, the controlled device wirelessly receives the debugging instruction sent by the debuggingterminal, and the problems of low hardware interface compatibility, poor contact and the like caused by wired connection are avoided; and besides, the debugging work of the controlled device can be free from the limitation of a debugging place, the flexibility and convenience of the debugging work are greatly improved, the debugging efficiency is improved, and the user experience is high.

The invention provides a voltage transformer handcart, a use method thereof and a power distribution cabinet. The power distribution cabinet is provided with a main circuit copper bar. The voltage transformer handcart comprises a voltage transformer, a conductive copper bar, a bottom plate, a first moving device and a second moving device, wherein the first moving device and the second moving device are matched with each other. The voltage transformer is connected with the conductive copper bar and is fixed on the bottom plate, and the first moving device is also fixed on the bottom plate; the second moving device is fixed on the power distribution cabinet; and the first moving device and the second moving device are matched with each other to move back and forth to drive the bottom plate so as to drive the conductive copper bar to be in contact with or separated from the main circuit copper bar. The invention provides a voltage transformer handcart which is simple in structure, simple and convenient to operate, low in cost, reliable in circuit connection and particularly suitable for occasions where a ship medium-voltage power distribution cabinet does not need to be frequently pushed in and pulled out of the handcart but is easy to swing along with a ship.

The invention discloses a protection verification test wiring structure, and the structure comprises an external insulating sleeve, an extended conductive rod, and a test lead wire. The test lead wirecomprises a conductor body and a plug connector. The extended conductive rod comprises an upper rod segment and a lower rod segment in coaxial connection with the upper rod segment. The lower rod segment is provided with an external thread, and the external insulating sleeve is disposed on the upper rod segment. The upper end of the upper rod segment is provided with a port adapted to the plug connector. The external insulating sleeve comprises a rotary holding square sleeve and an extending circular sleeve disposed at the lower end of the rotary holding square sleeve. The rotary holding square sleeve is connected with the extending circular sleeve. The uppermost point of the upper rod segment is lower than the uppermost point of the external insulating sleeve. The beneficial effects of the invention are that the structure is reasonable, can effectively assist a protection verification test, can guarantee the good connection stability between structures in a test process, and can effectively avoid the poor contact.

The invention discloses an LED lamp. The LED lamp comprises a lamp holder which is integrally formed, the upper part of an inner cavity of the lamp holder is connected with a power supply controller through a fixing mechanism, the side wall of the upper portion of the lamp holder is provided with a plurality of heat dissipation holes which are annularly distributed and are vertically strip-shaped,the middle of the lower part of the lamp holder is connected with a disc-shaped inner lampshade, an annular LED lamp bead mounting plate is clamped between the lamp holder and the inner lampshade, and an annular light-scattering lampshade is clamped at the lower end of the lamp holder and the lower end of the inner lampshade. The LED lamp has the advantages that the illumination range is wide, the heat dissipation performance is good, and due to the fact that the power supply controller is firmly fixed, the service life of the lamp is prolonged.

The invention provides a high-voltage high-power servo controller busbar. The busbar comprises a positive busbar (1), a negative busbar (5), upper insulating stand columns (3), lower insulating stand columns (2), an insulator (4) and an insulating support (6), the positive busbar (1) is used for connecting and conducting the positive electrodes of the components, and the negative busbar (5) is used for connecting and conducting the negative electrodes of the components; a plurality of pins respectively extend out of the positive busbar (1) and the negative busbar (5) and are used for conducting components and supplying power to the components; the insulator (4) is used for separating the positive busbar (1) from the negative busbar (5) to prevent short circuit caused by connection of busbars with different poles; the upper insulating stand columns (3) and the lower insulating stand columns (2) are used in pairs to support and fix the busbar; and the insulating support (6) is used for supporting and fixing a pin at the end part of the busbar, and a hole is formed in the insulating support (6) and is used for being connected and fixed with the main shell. Wiring is simplified, the cost is reduced, and the reliability is high.

The invention discloses a bidirectional adapter for connecting a cardiac pacemaker and test equipment. The bidirectional adapter comprises a conductive metal body located in the middle and two electrode plates located at the two ends of the conductive metal body. The two electrode plates are provided with electrode contacts which are respectively used for being connected with a spring clip of a bridge line of the cardiac pacemaker and a spring clip of the test equipment. Compared with the traditional direct clamping contact through spring clips, the bidirectional adapter avoids the problems that the spring clips are easy to damage, the connection is not firm, the contact is poor and the like when the two spring clips are directly clamped and connected with each other in the prior art, increases the connection firmness of a damage current testing device, avoids the electric signal interference caused by the poor contact and improves the conductivity and the testing accuracy, and meanwhile, the bidirectional adapter of the structure is beneficial for increasing the contact area, reducing the measurement error and ensuring that stable and reliable damage current measurement parameters are provided, improves the durability of the damage current testing device, reduces the damage rate and lowers the cost.

The invention discloses a dust collector capable of realizing wireless communication between a motor and a battery. The dust collector comprises a dust collector main body and a ground brush. The dust collector main body is internally provided with the motor and an energy storage unit used for providing electric energy, and the motor is provided with a main control unit and a first wireless communication module; and the main control unit is electrically connected with the first wireless communication module, the motor, the main control unit, the first wireless communication module and the floor brush are electrically connected with the energy storage unit, the energy storage unit is provided with a second wireless communication module, and the second wireless communication module is in communication connection with the first wireless communication module. By adopting a wireless communication scheme between the motor and the battery, the problem that the battery continues to supply power to the motor when the motor breaks down is avoided, meanwhile, the use of wires can be reduced, product installation is facilitated, and the problems of difficult assembly, poor contact and the like caused after the wires are increased are solved.

The invention discloses a device for winding an aluminum armor tape on a transmission line and an application method of the device. The device comprises a support block, a pressing down block, a tape reel and a connection pin shaft, the pressing down block is matched with the support block to lock the transmission line, and the support block is parallel to two lateral sides of the pressing down block. A concave block is arranged at the front end of the support block, a hollow clamping plate is arranged in the middle of the support block, and a handrail block is arranged at the rear end of the support block. A first cuboid block is arranged at front end of the pressing down block, an arc block is arranged in the middle of the pressing down block, and a second cuboid block matched with the clamping plate in shape is arranged at the rear end of the pressing down block. An aluminum armor tape groove is formed in the tape wheel, an aluminum armor tape fixing device is arranged on the inner wall of the aluminum armor tape groove, a through hole corresponding to through holes in the clamping plate is formed in a tape wheel axle, and round projections centering on the center of the tape wheel are arranged on one side, adjacent to the clamping plate, of the tape wheel. The connection pin shaft fixes one side of the clamping plate, the second cuboid block, the other side of the clamping plate and the tape wheel sequentially via the through hole in one side of the clamping plate, a through hole in the second cuboid block, the through hole in the other side of the clamping block and the through hole in the tape wheel.

The invention belongs to the field of street lamps, in particular to an LED structure waterproof street lamp module. Aiming at the problems that water can easily enter the existing street lamp, the wire connection time is long, the efficiency is low, if the skill of workers is poor, infirm wire connection can also be caused, so that poor contact or even short circuit danger can be further caused,the invention provides the following technical scheme that the LED structure waterproof street lamp module comprises a street lamp body, wherein the bottom side of the street lamp body is movably provided with an encapsulation plate; a wire outlet hole is formed on one side of the street lamp body; a ventilation valve movably mounted on the street lamp body through exhaust screws is arranged at one side of the wire outlet hole. The LED structure waterproof street lamp module involved in the invention has the advantages that the structure is simple; the street lamp body can well achieve the waterproof effect; a conducting wire is peeled and is inserted into wire inlet holes; then, a threaded rod is rotated; press plates can tightly press the conducting wire into wire connecting grooves; high speed and convenience are realized; the requirements for skill of workers are low; the wire connection is firm; the problems such as poor contact are avoided; the requirements of people are met.

The invention relates to a geomagnetic vehicle detector which specifically comprises a PCBA, a battery, a support and a shell, wherein the shell comprises a shell body and a shell cover; the shell body comprises an inner shell body and an outer shell body, the inner shell body is a square shell body, and the side wall of the outer shell body is a cylindrical ring which encloses the upper end of the inner shell body; the top part of the inner shell body is lower than the top part of the outer shell body, and the bottom face of the outer shell body is connected to the side wall bottom end of the outer shell body and the side wall of the inner shell body; the shell cover comprises an inner cover and an outer cover; the bottom face edge of the inner cover and the side wall top face of the inner shell body are welded to form an inner sealing chamber; the bottom face edge of the outer cover and the side wall top face of the outer shell body are welded to form an outer sealing chamber; one end of the support is a PCBA clamping part, the other end is a battery support, the PCBA is fixed on the PCBA clamping part, and the battery is fixed on the battery support; and the support is sealed inside the inner sealing chamber through arrangement of the PCBA clamping part towards the bottom part of the inner shell body. The geomagnetic vehicle detector provided by the invention can enhance waterproof performance and detection accuracy of the geomagnetic vehicle detector as well as impact resistance of the shell body.

The invention discloses an intelligent constant-temperature control system of a television panel mold. The intelligent constant-temperature control system of the television panel mold is characterized by comprising a nonmetallic spacing layer having an opening and an elastic nonmetallic fixing device, wherein the nonmetallic spacing layer having the opening and the elastic nonmetallic fixing device are formed in an integrated structure or a split connecting structure. The nonmetallic spacing layer having the opening is a multi-edge prism, a cylinder or an elliptic column. The intelligent constant-temperature control system of the television panel mold is used at the root of an insert of a constant-temperature control system pipeline, so that the oscillation and the elongation between the mold constant-temperature control system pipeline and the insert are prevented, the service life of the pipeline is prolonged, and such problems as poor contact due to such factors as high temperature can be effectively prevented.

The present application relates to an AC brake coil, which includes a skeleton, a winding and a protective cover. There are two skeletons, and the outer circumference of any skeleton is provided with a ring groove. The ring groove extends for one week along the circumference of the skeleton. The ring groove is used for winding the wire to form a winding, and a complete wire is wound on a skeleton first. In the ring groove of another skeleton, two windings are formed by winding in the ring groove of another skeleton, and a connecting wire of preset length is left between the two windings. One end of any skeleton is also provided with a guide groove, and the guide groove is connected. The ring groove is used for the wire to protrude; and when the guide grooves of the two skeletons have the same orientation, the winding directions of the windings on the two skeletons are consistent. The application has the effect of indicating the winding direction of the winding through the guide groove, so as to facilitate the installation of the coil on the iron core.

The present application discloses a display screen, which includes a display panel, a printed circuit board and a frame, the printed circuit board is bound and connected to the display panel through a chip-on-chip film, and the frame is set on the On the outside of the display panel, the printed circuit board is arranged between the display panel and the frame; body, fixed on the printed circuit board, the buffer is made of elastic conductive material; and the protective plate is made of conductive material, and the protective plate is arranged on the buffer and the frame Between the body, static electricity can be released to the frame to avoid problems such as static electricity accumulation on the printed circuit board; the protective plate is set between the buffer and the frame so that the buffer can be made thinner, so that the printed circuit board with the buffer does not As for the problem of increased shipping costs due to being too thick.

The invention discloses a wiring structure of a control box, comprising a box body, a cover body and a printed circuit board, wherein the box body and the cover body are mutually butted and matched, the printed circuit board is arranged in the box body, the printed circuit board is arranged in the middle and upper part of the box body, the wiring terminals are arranged on the top surface of the printed circuit board, and external wires pass through the box body and are connected with the wiring terminals; As the wiring operation is carried out without protruding into the inner cavity of the box body and placing the printed circuit board on an external workbench for wiring operation and that box body itself is directly use as an operation platform and the wiring operation is directly carryout on the box body, the operation space is larger, the operation is more flexible and convenient.

The invention relates to a heat exchange part which comprises a first heat exchange channel allowing a first heat exchange medium to pass through and a second heat exchange channel allowing a second heat exchange medium to pass through, the heat exchange part further comprises a pipe wall, the pipe wall separates the first heat exchange channel and the second heat exchange channel, the first heat exchange channel is defined by the inner surface of the pipe wall, and the pipe wall comprises a protruding heat exchange part. The protruding heat exchange parts are formed by bending two sections of pipe walls in the axial direction of the first heat exchange channel, the sides, facing the second heat exchange channels, of the protruding heat exchange parts protrude, and the second heat exchange channels are formed between the adjacent protruding heat exchange parts. Therefore, the problems of poor contact between the heat exchange sheets and the tubes and the like are solved, the heat transfer effect is better, tube expansion, welding and the like are not needed, the process is simple, the cost is low, the problem of water leakage is greatly solved due to the fact that welding between the heat exchange sheets and the tubes is not needed, and the product percent of pass is increased.

The invention discloses a multi-dimensional measuring platform with a movable rail and a control method thereof, and relates to the technical field of ground remote sensing instrument measuring platforms. The multi-dimensional measuring platform comprises a traveling rail (1), a multi-dimensional measuring platform tower, a vertical lifting mechanism (8), a measuring instrument mounting platform (9) and a power distribution and automatic control system (13), wherein the traveling rail (1) is paved on the ground; the multi-dimensional measuring platform tower comprises a lower tower base (2), a traveling mechanism (3), a rotating mechanism (4), an upper tower (5), an automatic telescopic tower arm (6) and a balancing weight (7); and the bottom of the lower tower base (2) moves on the traveling rail (1) through the traveling mechanism (3). The multi-dimensional measuring platform with the movable rail is high in measurement precision and high in control automation degree, and particularly can be used for measuring underlayer surfaces in remote sensing experiments of visible light, infrared and microwave in the remote sensing field.

A pipeline heat insulation device of an automobile engine bin is characterized by comprising a non-metal material insulation layer with an opening and an elastic non-metal material fixing device, and the non-metal material insulation layer with the opening and the elastic non-metal material fixing device are of an integral structure or a split-connection structure. The non-metal material insulation layer with the opening is in a multilateral prism shape or a cylindrical shape or an elliptic cylinder shape. The pipeline heat insulation device has the advantages that the pipeline heat insulation device of the automobile engine bin is used at the root of an inserting part of an engine pipeline so as to prevent the automobile engine pipeline and the inserting part from swinging and being stretched, the service life of the pipeline is prolonged, and the problem that due to high temperature and other reasons, contact is poor can be effectively solved.

The invention provides a cable holding mechanism and an electric cooker. The cable holding mechanism comprises a winding wheel which can be pivotally arranged and is used for receiving a cable, an elastic component which is connected to the winding wheel and is used for providing a driving force which allows the cable to be wound to the winding wheel, a locking part which is arranged at one side of the winding wheel and is used for locking the winding wheel, and an operating part which is connected to the locking part and is used for driving the locking part to move to release the locking of the winding wheel. According to the cable holding mechanism and the electric cooker, the winding wheel can be used to realize the automatic storage and finishing of the cable, thus the surrounding environment of electrical equipment with the cable holding mechanism is more neat, the neatness of the environment is not influenced by an external cable, in addition, the operations of disassembling and installing the cable and receiving the cable in the process of using the cable each time are saved, and great convenience is brought to a user. In addition, since the cable plugging is not needed each time, the problems of poor contact caused by the cable plugging can be avoided, and the stability of equipment is improved.

The invention discloses a domestic chemical control computer mainboard integrated with a multi-serial-port chip and an industrial control computer. The domestic chemical control computer mainboard integrated with the multi-serial-port chip comprises a mainboard body, a CPU, a bridge chip, the multi-serial-port chip, an interface chip and a serial communication interface, wherein the CPU, the bridge chip, the multi-serial-port chip, the interface chip and the serial communication interface are integrated on the mainboard body; the bridge chip is connected with the CPU; the multi-serial port chip is connected with the bridge chip and the interface chip; and the interface chip is connected with the serial communication interface. By implementing the embodiment of the invention, the problems of loose connection, poor contact and the like due to the fact that the multi-serial-port chip and the mainboard are connected by adopting a PCIe card slot in the prior art can be effectively solved.

The invention discloses a protection verification test wiring structure, and the structure comprises an external insulating sleeve, an extended conductive rod, and a test lead wire. The test lead wirecomprises a conductor body and a plug connector. The extended conductive rod comprises an upper rod segment and a lower rod segment in coaxial connection with the upper rod segment. The lower rod segment is provided with an external thread, and the external insulating sleeve is disposed on the upper rod segment. The upper end of the upper rod segment is provided with a port adapted to the plug connector. The external insulating sleeve comprises a rotary holding square sleeve and an extending circular sleeve disposed at the lower end of the rotary holding square sleeve. The rotary holding square sleeve is connected with the extending circular sleeve. The uppermost point of the upper rod segment is lower than the uppermost point of the external insulating sleeve. The beneficial effects of the invention are that the structure is reasonable, can effectively assist a protection verification test, can guarantee the good connection stability between structures in a test process, and can effectively avoid the poor contact.

The invention provides a contact type power supply structure of an optical filter switcher. The contact type power supply structure comprises a switching base, a lens base, an electromagnetic driving assembly and a U-shaped conductive part; the electromagnetic driving assembly is mounted on the lens base and is used for driving two optical filters mounted on the switching base to be switched to a position corresponding to an opening in the lens base; the first end of the U-shaped conductive part is electrically connected with the electromagnetic driving assembly; a positioning groove matched with the U-shaped conductive part in shape is formed in the lens base; a part of the U-shaped conductive part is arranged in the positioning groove; and the first end of the U-shaped conductive part forms a contact type conductive terminal used for being in contact with a conductive terminal of an external connector. The contact type power supply structure can avoid the problems of inconvenient wire passing, poor contact of the joint between a wire and a coil or an external connecting part, and the like, and has the characteristics of being simple in structure and low in cost.

A device with storage function and capable of conveniently replacing storage media, which includes a host connector, a motherboard matched with the host connector, a controller, a storage medium separate from the motherboard, and a storage medium connected to the motherboard respectively. Compatible fixtures. The fixing device cooperates with the storage medium so that the storage medium is separated from the motherboard. When installed and used, the storage medium is fixed on the motherboard through the fixing device, thereby realizing a stable electrical connection between the storage medium and the controller; it needs to be replaced When storing the medium, the storage medium together with the fixing device can be removed from the motherboard. Through the fixing device, the storage medium does not directly cooperate with the motherboard, so that the motherboard can adapt to storage media with different capacity specifications. Therefore, the device with storage function can realize the connection between storage media with different capacities through this structure. Replacement can ensure a stable electrical connection between the storage medium and the controller.

The invention relates to an alternating-current brake coil. The alternating-current brake coil comprises frameworks, a winding and a protective sleeve, the number of the frameworks is two, an annulargroove is formed in the periphery of any one framework, the annular groove extends by a circle in the circumferential direction of the framework, the annular groove is used for winding a wire to forma winding, one complete wire is wound in the annular groove of one framework and then wound in the annular groove of the other framework to form two windings, and a connecting wire with the preset length is reserved between the two windings. One end of any framework is also provided with a guide groove which is communicated with the annular groove so as to allow the wire to extend out; and when the orientations of the guide grooves of the two frameworks are consistent, the winding directions of the windings on the two frameworks are consistent. According to the invention, the winding directionof the winding is indicated through the guide groove, so that the coil can be installed on the iron core conveniently.