66results about How to "Reduce connectivity" patented technology

This application relates to the field of battery formation and capacity testing equipment technology, and discloses an intelligent control integrated machine and battery production formation and capacity testing equipment. The intelligent control integrated machine includes: a chassis, a bus backplane, a main control board, a control board, a data acquisition board, a communication board, and a power supply board. The main control board, control board, data acquisition board, communication board, and power supply board are all detachably plugged into the chassis, and when plugged into the chassis, they are respectively plugged into the bus backplane. In this application, when the main control board, control board, data acquisition board, communication board, and power supply board are plugged into the chassis and connected to the bus backplane, the connection of each functional board can be quickly and easily realized, reducing the complex wiring and connection between devices, improving the stability and reliability of the system, and reducing the space occupied by the entire control equipment.

The invention provides a dual-frequency single-port intermodulation tester, and the tester comprises an intermodulation control module which comprises an intermodulation controller, a first frequency source and a second frequency source, and the intermodulation controller controls the first frequency source and the second frequency source to generate two carrier signals with different frequencies through receiving a configuration instruction; and the multiplexer module comprises a plurality of power amplifier modules and a multiplexer, the plurality of power amplifier modules are used for amplifying the two paths of carrier signals, synthesizing the two paths of carrier signals through the multiplexer, outputting the synthesized two paths of carrier signals to a tested piece, and receiving and processing intermodulation products reflected back from the tested piece at the same time. According to the invention, the accuracy, the integration level and the field applicability of the intermodulation test are effectively improved.

The utility model provides a portable modularized nitrogen making machine. The portable modularized nitrogen making machine comprises a gas inlet seat and a gas outlet seat, wherein the gas inlet seat and the gas outlet seat are respectively provided with a gas inlet channel and a gas outlet channel; the air inlet end and the air outlet end of the adsorption module are respectively communicated with the air outlet end of the air inlet channel and the air inlet end of the air outlet channel; the first connecting piece is detachably arranged at the air inlet end of the air inlet channel in a sealing manner; the second connecting piece is detachably arranged at the air outlet end of the air outlet channel in a sealed mode. Pipeline connection among a compressed air pipeline, an air inlet channel and an air inlet control valve is achieved through a first input channel, a first output channel and a first control cavity which are integrally integrated in a first connecting piece. And the second input channel, the second output channel and the second control cavity which are integrally integrated in the second connecting piece realize pipeline connection among the nitrogen pipeline, the gas outlet channel and the gas outlet control valve, so that the number of pipe fittings required by the nitrogen making machine is greatly reduced, rapid installation of the gas pipeline of the nitrogen making machine is realized, the production efficiency is improved, and the production cost is reduced. And connection points of gas pipelines can be reduced, and the gas leakage risk is reduced.

The invention discloses a 3D waveguide type multi-core optical fiber link monitor which comprises an optical chip platform with n layers of stacked waveguide structures and a photoelectric detector, n is larger than or equal to 2, and the number n of waveguide layers of the optical chip platform is equal to the number of layers of connected multi-core optical fibers. The cross section distribution of waveguides in the optical chip platform and the cross section distribution of fiber cores of the multi-core optical fiber are the same and are in one-to-one correspondence; a waveguide channel corresponding to each fiber core of the multi-core optical fiber in the optical chip platform comprises an optical fiber signal coupling fan-out module, an optical signal beam splitting module, an optical signal monitoring module and a multi-core optical fiber signal coupling fan-in module which are connected in sequence; after an optical signal of a multi-core optical fiber transmitting end is coupled by the fan-out module, a small part of the signal is separated by the beam splitting module through a waveguide coupling effect and is used for monitoring, and most of the signal is transmitted back to a transmission link through the fan-in module; and the monitoring module realizes real-time detection through a photoelectric detector. According to the invention, no extra optical fiber fan-in / fan-out module is needed, the insertion loss is low, and the device is not sensitive to polarization.

This utility model discloses a semi-automatic soldering machine, including a frame with a soldering furnace fixedly mounted on the top surface of the frame. A waste solder cutting mechanism is located in front of the soldering furnace, comprising a waste solder furnace, a cutting assembly located above the waste solder furnace, and an opening / closing assembly for driving the cutting assembly to open and close. Above the soldering furnace are clamps for holding wires and a moving mechanism for driving the clamps to move vertically and horizontally. This significantly improves efficiency and automation. By setting up a waste solder cutting mechanism including a waste solder furnace, a cutting assembly, and an opening / closing assembly, automated cutting of waste solder is achieved. This completely changes the traditional method of relying on manual operation by workers to cut excess solder from the ends of wires, greatly shortening the single operation time, significantly improving overall production efficiency, and solving the problem of low work efficiency in the past.

The invention discloses a distribution network automation feeder terminal switching method, system and device with a fault self-diagnosis function and a medium. The method comprises the steps that an original electrical signal is collected through an input interface unit; intermediate information data are obtained through the signal processing module; electrical characteristics are collected through a main control module to obtain an interface type identification result, adaptive adjustment is carried out on the intermediate information data, and an adaptive signal is obtained and output; and acquiring and analyzing the digital signal to obtain device operation state information, performing fault diagnosis in combination with the interface type identification result, and triggering an alarm when abnormality is diagnosed. Intelligent conversion is achieved by integrating multiple interfaces, the problem that equipment interfaces of multiple manufacturers are incompatible is solved, the tedious operation of equipping multiple adapters on site is avoided, the accuracy and stability of cross-interface signal transmission are guaranteed, and the operation reliability, operation and maintenance convenience and system overall safety of the device in a complex environment are improved.

The utility model relates to the field of pesticide residue treatment, specifically is a kind of integrated agricultural product pesticide residue crushing extraction equipment, including extraction cylinder, the inside of extraction cylinder is sequentially opened with crushing chamber, control chamber and stirring chamber from top to bottom, heating unit is fixedly arranged on extraction cylinder and is matched with stirring chamber, the side portion of extraction cylinder is provided with centrifuge, and the bottom end of stirring chamber is communicated with centrifuge;The integrated agricultural product pesticide residue crushing extraction equipment of the utility model integrates multiple functions such as crushing, stirring, heating, centrifugal separation in one, realizes the full-process automation operation from agricultural product feed to residue extraction, separation, reduces the connection and transmission steps between multiple devices in traditional equipment, improves work efficiency, saves space.

The utility model provides a high-efficiency intelligent wind-light-diesel-storage micro-power station, which relates to the field of wind-light-diesel-storage micro-grid power stations and comprises a box body used for providing support, a diesel generator cabin used for installing a diesel generator, a high-voltage power distribution cabin used for installing power distribution equipment and an energy storage cabin used for installing a battery. An inner cavity of the diesel generator cabin is fixedly connected with a variable-frequency direct-current diesel generator set used for power generation, and a hybrid inverter used for AC / DC conversion and a wind driven generator controller used for controlling wind power generation are installed in an inner cavity of the high-voltage power distribution cabin. According to the utility model, the EMS controller is adopted to carry out energy scheduling in a unified manner, is respectively connected with the hybrid inverter, the wind driven generator controller and the three-phase AC ammeter through RS485, and is respectively connected with the frequency conversion DC diesel generator set and the BMS of the energy storage battery through CAN2.0B, so that a unified control architecture is formed, the control complexity is reduced, and the control precision is improved at the same time.

The utility model relates to motor technical field discloses a synchronous motor for engineering vehicle, including main part assembly, including motor body, the motor body bottom is provided with base, the motor body top is provided with control module, the motor body top is provided with the protective cover, adjustment assembly, set up in control module, including adjustment piece, the adjustment piece includes support cover, support cover with control module bottom fixed, the support cover below is provided with the clamping plate, one side of clamping plate is fixed with sliding block. Through install control module in the motor top and with the protective cover protection, can save space, be convenient for unified layout installation, reduce the connecting circuit and the related failure risk, and then reduce the protection difficulty, be favorable to guarantee both matching coordination, improve overall reliability.

The utility model provides a kind of integrated double independent air duct refrigeration system, including box, evaporator, condenser;The evaporator and condenser are respectively installed in the two sides of box, the box on the outside of evaporator is opened outdoor air inlet, outside air enters the air duct where evaporator by outdoor air inlet, air duct is equipped with air supply fan, air supply fan pushes air to flow through evaporator;Air is sent into refrigeration area after heat exchange with evaporator;Another side of box is equipped with corresponding outdoor air inlet close to condenser, indoor air outlet is equipped opposite outdoor air inlet, outdoor air enters the air duct where condenser by outdoor air inlet, air duct is configured and installs exhaust fan, exhaust fan will wind flow flow through condenser, condenser releases heat, exhaust fan will absorb heat after hot air discharge outdoor.This new double independent air duct design avoids hot and cold air mixing, evaporator and condenser can efficiently carry out heat exchange in relatively independent airflow environment.

The application relates to an insulating pull rod assembly and a vacuum circuit breaker. The insulating pull rod assembly comprises: an elastic buffer structure, which comprises a limiting substructure, at least two elastic deformation insulating strips and a first connecting part; the limiting substructure comprises an upper limiting table and a lower limiting column, the lower limiting column comprises a first limiting end connected with the upper limiting table and a second limiting end away from the first limiting end; the at least two elastic deformation insulating strips are coaxially distributed around the lower limiting column, one end of the elastic deformation insulating strip is fixedly connected with the upper limiting table, and the other end of the elastic deformation insulating strip is fixedly connected with the first connecting part; an insulating pull rod, the insulating pull rod and a moving conducting rod of the vacuum circuit breaker are fixedly connected on the two sides of the elastic buffer structure, the insulating pull rod is connected with the first connecting part, and the upper limiting table is connected with the moving conducting rod of the vacuum circuit breaker. The application can reduce the moving quality of the vacuum circuit breaker.

The utility model discloses a positioning labeling mechanism for a plastic packaging bag labeling machine, and relates to the technical field of plastic packaging bag production, the positioning labeling mechanism comprises a support plate and a roller body, the top of the roller body is connected with a baffle block, the bottom of the baffle block is connected with a first non-slip mat, one side of the baffle block is connected with a baffle strip, and the inner ring of the baffle strip is connected with a second non-slip mat; a connecting piece is fixed to one side of the barrier strip, a plurality of clamping grooves are formed in the top of the connecting piece, a spring is connected into the stop block, and a clamping block is connected to the top of the spring. Through the arrangement of the stop block, the barrier strip, the connecting piece, the clamping groove, the clamping block and the spring, when the positions of the stop block and the barrier strip need to be adjusted, the clamping block is pressed down to displace the clamping block to compress the spring, and then the diameter of the barrier strip is increased by bending the barrier strip; compared with the mode that the wrench is held twice, the wrench is inserted into the bolt to rotate several circles, the check ring is operated and the wrench is taken out, operation is convenient and fast, and tools are not needed.

The utility model belongs to the technical field of lighting equipment, and particularly relates to a novel ceiling fan lamp. The lamp comprises a lamp body, a lamp panel and a suspender, a cavity is formed in the lamp body, a controller and a light source driver are arranged in the cavity, a hanging rod is connected to the top of the lamp body, the lamp panel and the power source are integrally designed, the power source is integrated in the lamp panel, a circuit board is fixedly installed on the lamp panel, and a light source and the light source driver are arranged on the circuit board. The hanging rod is connected with the lamp panel through threads. A traditional novel ceiling fan lamp is improved, a ceiling lamp power source is integrated at the bottom of a lamp panel, the lamp panel and the power source are combined into a whole, a lamp source and a light source drive are jointly arranged on a circuit board, a controller is fixed in a lamp body, external connection and complexity are reduced, a hanging rod is made of an integrated sheet metal part through a stamping plate, and the assembling steps and the number of parts are reduced.

The invention discloses a steel pipe quenching cooling device and a use method thereof, and relates to the technical field of metal material heat treatment, the steel pipe quenching cooling device comprises a box body with an internal space, and the box body is provided with a plurality of detection openings communicated with the outside; the data acquisition module is arranged in the internal space, and the data acquisition module is provided with a plurality of interfaces used for plugging installation and electric connection of the sensor module; the plurality of sensor modules are respectively inserted into the corresponding interfaces and are electrically connected with the data acquisition module; and the sensor modules are provided with sensing ends facing the corresponding detection openings. The data acquisition module is positioned and mounted relative to the box main body, so that the interfaces are in one-to-one correspondence with the detection openings, and the sensing end is aligned with the detection openings and is communicated with the outside through the detection openings when the sensor module is inserted in place; a communication channel is arranged between each detection opening and the corresponding interface, the communication channel is located between the box body and the data acquisition module, a channel inner cavity is defined by the channel wall, and the two ends of the channel wall are connected with the detection openings and the interfaces in a sleeved mode respectively.

The embodiment of the invention discloses a relay state detection and interlocking protection circuit and a relay detection method, belongs to the technical field of relay state detection, and solves the problems that in the prior art, independent reference points are generally arranged in front of and behind a main negative relay respectively, and detection is realized by matching with a sampling resistor; and the internal space of the controller is compact, and wire harnesses and connecting nodes are added at double reference points, so that the fault risk is relatively high. Comprising a main negative relay, two ends of which are connected in parallel with a first sampling resistor set, and one end of the main negative relay is connected to a reference ground of a circuit; a second sampling resistor set and a third sampling resistor set are respectively arranged between the two ends of the main positive relay and the main negative relay; and the detection module is connected to the reference ground and is used for responding to different detection instructions and acquiring parameter values of different sampling resistor sets so as to perform detection and interlocking protection on the main negative relay and the main positive relay according to the parameter values.

This utility model relates to the field of testing device technology and discloses a testing device for an automotive cockpit controller, comprising: a main cabinet, which is divided into multiple functional layers along a first direction by partitions, the functional layers being suitable for testing at least one function of the automotive cockpit controller; and a darkroom connected to the main cabinet, the darkroom being suitable for forming a dark space; the main cabinet includes: a first side panel, the first side panel being suitable for mounting the object under test for testing in the darkroom. By dividing the main cabinet into multiple functional layers along the first direction, the parallel testing capability of multiple functions of the automotive cockpit controller is realized. This not only optimizes space utilization but also significantly improves testing efficiency, allowing different functional modules to be tested simultaneously, greatly shortening the overall testing cycle. The connection design of the darkroom provides a controllable dark environment for optically related tests, ensuring the reliability and consistency of test data.

The application discloses an inner core, a battery monomer and a preparation method, and belongs to the technical field of batteries. The inner core comprises an inner core body and a plurality of tabs connected with the inner core body; the plurality of tabs are overlapped, and the plurality of tabs are integrally connected in the overlapped area and form an integrated overlapping structure; the integrated overlapping structure has a cutting surface, and the cutting surface is covered with a protective piece. By connecting the overlapped area of the plurality of tabs to form an integrated overlapping structure and cutting the part where the tabs are misaligned, and by covering the cutting surface with the protective piece, on the one hand, the assembly process of the tabs is simplified to a certain extent, and the risk of connection loosening or damage caused by relative displacement between the tabs during use is reduced; on the other hand, the cutting surface is effectively protected from external environmental factors, short circuit, corrosion and other problems at the cutting surface are avoided, the risk of damage to other components caused by burrs at the edge of the cutting surface is reduced, and the safety and reliability of the inner core are improved.

The utility model belongs to door lock technical field, specifically is a kind of door lock's latch mechanism, including integrally injection moulded latch body and connecting rod, connecting rod is equipped with limit block, baffle and spring through convenient dismounting mechanism assembly, latch body is equipped with metal sheath, convenient dismounting mechanism is matched through the limit protrusion in the assembly ring inside and the assembly slot on connecting rod, assembly slot includes rotating part, into end and limit part, the quick loading and unloading of baffle are realized, metal sheath is fixed through the double positioning structure of positioning column and positioning hole, positioning protrusion and positioning groove, the utility model reduces the quantity of parts and cost, eliminates the connecting stress concentration of split type latch, improves anti-fatigue performance, without tooling can quick dismounting, improve production maintenance efficiency, metal sheath effectively protects latch, prolongs service life, and it has low cost, high reliability and convenient maintenance.

The application discloses a kind of design and manufacture method of printed circuit board inner layer circuit, the design and manufacture method includes: determining drilling parameter, and the basic size of connection PAD is set based on drilling parameter;Tear drop-shaped gradual widening structure is generated in the transition area of connection PAD and inner layer circuit, the structure of heat dissipation PAD is designed synchronously, and inner layer circuit wiring design is completed;Form inner layer circuit film, and check film;At the same time, pre-treatment is carried out to PCB inner layer substrate;The pattern is formed by aligning the film that passes the check with inner layer substrate;Substrate is etched;The substrate after etching is cleaned, and unqualified product is identified and screened, and the qualified product is inner layer circuit product.The application solves the problem of weak connection and easy breakage of PTH hole and inner layer circuit in high-density PCB through the three-in-one technical route of structure optimization+process synergy+precision control, and improves the mechanical strength, electrical reliability and thermal management capability of the product.

The utility model relates to a compressor technical field discloses a kind of integrated filter muffler, air compressor and vehicle, integrated filter muffler includes: filter unit casing and muffling unit casing, both integrated settings;Filter unit casing inside is equipped with filter module, and muffling unit casing inside is equipped with sound-absorbing component;Filter unit casing one end is provided with the filter outlet joint suitable for being connected with the air inlet of compressor body, and other end is provided with filter air inlet joint;Muffling unit casing one end is provided with the sound-absorbing air inlet joint suitable for being connected with the air outlet of compressor body;Filter outlet joint and sound-absorbing air inlet joint are located the same side of integrated filter muffler.The utility model provides integrated filter muffler, by integrating the other, space occupation and connection complex problem caused by separate installation can be avoided, avoid leading to pipeline connection, effectively reduce the equipment occupied space, improve the compactness of overall structure.

The parallel multi-way directional valve comprises at least two parallel valve units, each of which comprises a valve body, a valve core, a driving mechanism, an oil inlet channel and an oil return channel. The valve body is integrally formed by casting, and a valve cavity extending along a first axis is arranged in the valve body. The valve cavity is in communication with at least two working oil ports formed in the valve body. One pair of opposite sides of the valve body are mounting surfaces. The valve core is movably arranged in the valve cavity. The driving mechanism is used to drive the valve core to reciprocate relative to the valve cavity to select the communication of the corresponding working oil port. The oil inlet channel penetrates through the mounting surfaces of the opposite sides of the valve body and is in communication with the valve cavity. The oil return channel penetrates through the mounting surfaces of the opposite sides of the valve body and is in communication with the valve cavity. Adjacent two valve units are connected through the mounting surfaces of the valve bodies, and the oil inlet channel of one valve unit is in communication with the oil inlet channel of the other valve unit, and the oil return channel is in communication with the oil return channel of the other valve unit.

The application discloses a portable bipolar cold cycle ablation device and an ablation needle, which comprises a handheld main body, an energy application unit, a cold cycle unit, an energy supply unit and a circulating refrigeration unit. The energy application unit is fixedly arranged on the outside of the handheld main body, and the cold cycle unit is arranged in the inside of the energy application unit. The energy application unit can be moved to the target tissue together with the handheld main body. The energy application unit comprises at least one first energy application element and at least one second energy application element. The cold cycle unit comprises a fluid circulation channel extending from the proximal end of the energy application unit to the distal end and returning from the distal end to the proximal end. The fluid circulation channel is provided with an insulation part on the channel wall of at least the part extending into the first energy application element and / or the second energy application element. The circulating refrigeration unit is in circulation communication with the first liquid inlet and the first liquid outlet at the proximal end of the fluid circulation channel, and is used for driving the fluid circulation flow and refrigerating the fluid circulation flow.

The utility model discloses a kind of microcrystalline direct current common mode inductance, including insulating shell, microcrystalline magnetic core, positive pole copper bar and negative pole copper bar, microcrystalline magnetic core is fixed in the inside of insulating shell, positive pole copper bar and negative pole copper bar are through the insulating shell, and its both ends extend to the outside of insulating shell, as inductance winding;Positive pole copper bar and negative pole copper bar pass through the center hole of microcrystalline magnetic core in parallel, and keep preset interval in the magnetic core inside.The utility model replaces winding with integrated copper bar, optimizes copper bar interval and magnetic circuit symmetry, enhances common mode spurious wave current suppression capability.Integrated copper bar structure replaces traditional winding, simplifies winding design, reduces connecting point and welding link, to reduce contact resistance and potential fault point, enhances current carrying stability and long-term durability.Positive and negative pole copper bar passes through magnetic core center hole and keeps preset interval: on structure, it is ensured that double copper bar forms symmetrical and parallel magnetic circuit in the magnetic core inside, and the suppression effect of spurious wave current is optimized.

The utility model discloses an automobile air inlet pipe which belongs to the field of automobile accessories and comprises an air inlet pipe body and an air inlet branch pipe, the air inlet pipe body is fixedly connected with the air inlet branch pipe, a first connecting branch pipe is arranged on the side portion of the air inlet pipe body, a connecting piece is arranged in the first connecting branch pipe in a penetrating mode, and a second connecting branch pipe is further arranged on the side portion of the air inlet pipe. A connecting cylinder is arranged in the second connecting branch pipe in a penetrating mode, the first connecting branch pipe and the second connecting branch pipe which are arranged on the air inlet pipe body provide stable connecting positions for linkage of other structures of the air inlet system, and the first connecting branch pipe can be connected with a waste gas pipe of a crankcase or a large air pipe of an air inlet auxiliary device through a connecting piece. The second connecting branch pipe can perform pressure relief protection on the air inlet pipe body through the connecting cylinder and a pressure relief valve or a penetrating pressure sensor and the like, the adaptability of the air inlet pipe body is remarkably improved, the air inlet pipe can be combined with various other air inlet mechanisms, and therefore the application range of the air inlet pipe is expanded.

This utility model discloses a four-in-one synthesis furnace system, including a four-in-one synthesis furnace, a control system, and a conveying system. The four-in-one synthesis furnace is connected to a plate heat exchanger, an alkali absorption tower, an automatic ignition device, a steam flash tank, and a forced circulation tank. The steam flash tank is connected to a wastewater sampling cooler at its end, and the alkali absorption tower is connected to a liquid alkali circulation tank at its end. The alkali absorption tower is used for deep treatment of unreacted hydrogen chloride gas and other harmful gases generated during the synthesis reaction, belonging to the field of hydrochloric acid production technology. This four-in-one synthesis furnace system ignites the raw material gas using an automatic ignition device, cools the gas using a plate heat exchanger, discharges the synthesis gas into a water tank for absorption, and treats the tail gas using an alkali absorption tower. By integrating multiple processes into one unit, it reduces intermediate connecting links and equipment, shortens the process flow, makes the production layout more compact, and effectively saves floor space.

This invention discloses a three-way disc valve for gas mixing in polycrystalline silicon preparation, relating to the field of valve technology. It includes a first flange assembly, a second flange assembly, a middle valve body assembly, a valve stem assembly, a cylinder adjusting assembly, and a support assembly. The first and second flange assemblies are disposed on either side of the middle valve body assembly. The support assembly is mounted on the first flange assembly, and the cylinder adjusting assembly is mounted on the support assembly, connected to the valve stem assembly. The cylinder adjusting assembly drives the valve stem assembly to move, thereby controlling the opening degree of the second flange channel and the third flange channel of the second flange assembly. The compact and multifunctional three-way disc valve of this invention reduces the number of pipe connections and valves, simplifies the system structure, and thus reduces equipment and maintenance costs. By controlling the opening size between different channels, it precisely controls the gas mixing ratio, ensuring good mixing effect and adapting to different preparation conditions and process variations.

This invention relates to the technical field of water electrolysis hydrogen production equipment, providing a T-type coupled gas-liquid separation and condensation integrated device and its working process for water electrolysis hydrogen production. The device includes a housing comprising a horizontal separation section, a vertical condensation section, and a liquid collection section. The liquid collection section and the vertical condensation section are located on the same vertical plane, with the vertical condensation section positioned above the liquid collection section. The horizontal separation section, vertical condensation section, and liquid collection section are connected and together form a T-shaped structure. A gas deflection channel is formed at the intersection of the vertical condensation section and the horizontal separation section, causing the gas after initial liquid removal to change from horizontal flow to vertical upward flow. The deflection channel forms a flow guiding transition structure to prevent secondary entrainment caused by eddies in the gas flow. This invention employs a three-stage synergistic purification process, achieving excellent gas-liquid separation and demisting efficiency. It utilizes a three-stage synergistic treatment mechanism of gas-liquid cyclone initial separation + deep condensation dehydration + wire mesh demisting, combined with a strong swirling flow field to enhance droplet detachment and a flow equalization plate to optimize airflow distribution, effectively removing electrolyte droplets and water vapor entrained in the gas.

The invention discloses an audio bus system and an audio bus connection method, and relates to the technical field of audio bus connection, the system comprises a master node and a plurality of slave nodes; the second bus transmit-receive interface of the master node is connected with one bus transmit-receive interface of the first slave node to form a master link; the first bus transmit-receive interface of the master node is connected with one bus transmit-receive interface of the first slave node to form an auxiliary link; starting from the second slave node, one bus transceiving interface of each subsequent slave node is connected with one bus transceiving interface of the previous slave node; the controller is used for controlling only operation of the main link when the audio data transmission load is not greater than a preset threshold value; and when the audio data transmission load is greater than a preset threshold value, controlling to operate the main link and the auxiliary link at the same time. According to the application, the problems of link blockage, data loss, poor data integrity and the like caused by excessive bandwidth occupation can be solved on the premise of not increasing the number of nodes and the length of a cable.

The utility model relates to a kind of PCB card installation device, PCB card integrated module and energy storage converter, PCB card installation device, comprising: shell;Front panel assembly, front panel assembly includes detachably installed in the front side of shell front mounting plate and is set to the front panel of front mounting plate, front panel has the multiple groups of female connector for inserting in the male connector of this PCB card;Rear panel assembly, rear panel assembly detachably installed in the rear side of shell;And multiple PCB fixing pieces, each pair of PCB fixing pieces is respectively and each group female connector correspondingly fixed on the inner wall of shell, PCB fixing piece is opened with the sliding slot for inserting the board of this PCB card and extending along front-back direction;The PCB card installation device utilizes the female connector of front panel and the male connector of PCB card and inserts to realize the electrical communication between different PCB cards, can concentrate the installation of PCB card in the device, to reduce cable connection and wiring design, greatly improve the maintainability of PCB card.

The utility model discloses a high -power direct current charging gun with prevent shedding structure, the utility model relates to charging gun technical field. Including charging gun, the dust cover is equipped with the export end of charging gun, the gun head is arranged in dust cover inside still includes: locking assembly, locking assembly is away from the outer wall fixedly connected with locking assembly of dust cover, locking assembly includes the plug, the outer wall of plug below is connected with the connector and is connected, through the rotation cooperation of arc plate and the clamping groove in prevent falling assembly, the second reset spring's thrust effect, can when the plug and the connector preliminary clamping form first heavy fixed, limit both relative displacement, the clamping of the bolt and arc plate positioning hole in locking assembly subsequently, the sustained force of the combination thrust spring forms second heavy reinforcement, makes double -protection link more closely, compared with single protection structure, more adaptation complex use scene under the connection stability demand.