54results about How to "Convenient series and parallel connection" patented technology

The invention discloses a power storage device and a preparation method thereof. The preparation method of the energy storage device comprises the following steps: (1) forming a uniform conducting layer on an insulating base; (2) uniformly overlaying an active substance on the conducting layer to form an active substance layer; (3) imaging the active substance layer and the conducting layer, so that the active substance layer and the conducting layer are in set shapes to obtain a plane type electrode structure; (4) coating an electrolyte on the electrode structure; and (5) packaging the electrode structure, so that the active substance layer and the conducting layer in the set shapes are covered with the electrolyte to obtain the energy storage device. The preparation method of the energy storage device disclosed by the invention is low in preparation cost and is convenient for implementation of mass production.

The present invention relates to a fuel cell stack incorporated in a fuel cell device and a fuel cell device including such a fuel cell stack. The fuel cell stack (4) according to the present invention has a plurality of tubular fuel cell bodies (6-10) arranged laterally relative to a longitudinal direction of the fuel cell bodies and electrically insulating support plates (12, 14) fixed to respective opposite ends (6a, 6b) of the plurality of the fuel cell bodies (6-10). Each of the fuel cell bodies (6-10) has an inner electrode layer (16), an outer electrode layer (20) and an electrolyte layer (18) disposed between the inner and outer electrode layers (16, 20). Each of the fuel cell bodies (6-10) also has, at one end thereof, an inner electrode exposed periphery (16a) where the inner electrode layer (16) is exposed out of the electrolyte layer (18) and the outer electrode layer (20). The fuel cell stack (4) further has connections (15) disposed at each of the support plates (12, 14) to electrically connect the fuel cell bodies (6-10) in an arbitrary combination.

The invention discloses a battery module and a new energy automobile. The battery module comprises a frame structure; the frame structure is internally provided with a plurality of electric core units in an arraying manner; each electric core unit comprises a monomer electric core, a heat conduction sheet and a heat insulation sheet; each monomer electric core has a positive electrode ear and a negative electrode ear on at least one end part; one side of each heat conduction sheet is provided with the monomer electric core for conducting electric core heat, and the other side of each heat conduction sheet is provided with the heat insulation sheet for preventing heat transfer between the monomer electric cores of the adjacent electric core units. The battery module has high heat transfer efficiency and high cooling and heating efficiency of a battery pack.

The present invention relates to a casing of a battery pack, which includes a box body in which a battery pack is arranged. The outer wall of one side of the box has a protruding positioning buckle, and the outer wall of the other side has a protruding The positioning groove, the positioning buckle, its size is smaller than the positioning groove, so as to be embedded or inserted in the positioning groove of the adjacent shell during assembly, and the combination of the box is carried out. The present invention improves the shell structure of the battery pack , Various combinations can be made by using the shell of the battery pack. On the basis of the existing battery pack shell, a variety of combination designs can be carried out according to the actual application situation, so as to meet the matching requirements of the battery pack in various places. It is convenient for the series and parallel connection of batteries, which is convenient for wider application of batteries.

The invention provides a dye-sensitized solar cell structure based on filamentary working electrode and pertains to dye-sensitized solar cell structure technology field.The working electrode includes conductive filamentary substrate and sensitized semiconductor film. The sensitized semiconductor film is porous film structure composed of different size semiconductor particles, which absorb sensitized dye molecules; the sensitized semiconductor film covers the surface of conductive filamentary substrate. The conductive filamentary substrate has the advantages of rich resources, small size, free shape change, convenient process, easy series parallel connections and so on. The invention provides a cheap and efficient solution for light energy power supply in narrow and special space.

A spot-welding-free safe capacity expanding device for cylindrical lithium batteries comprises a battery case, and is characterized in that a battery module formed by combining an anode busbar, a cathode busbar and a cylindrical lithium core together is arranged in the battery case, and a battery cap is mounted on the outside of the battery case (12). Holes are formed in the surface of the anode busbar, an anode bus cap is arranged on the surface of the anode busbar, an anode current-guiding clip spring is mounted in the anode bus cap, the anode busbar is provided with bent edges, the surface of the cathode busbar is provided with holes and grasping components, the cathode busbar is provided with bent edges, and the cylindrical lithium core is mounted between the cathode busbar and the anode busbar. The grasping components are four hooks which are matched with a cathode cap of the cylindrical lithium core, a magnet is arranged at the position of each grasping component on the outer side of the cathode busbar, and the magnets are disc-shaped.

The invention discloses an electronic management method and system of a battery. The method comprises the following steps of acquiring a voltage stage of a single battery; determining to execute at least one of the following operation: stimulation operation, optimization operation and balancing operation on the single battery according to the acquired voltage state of the single battery; and outputting a pulse width modulation (PWM) signal to the single battery according to the determined operation. By the method, PCS control and BMS control are combined, so that PCS power partial control and battery system control and application can be effectively combined and coordinated, moreover, the cost can be reduced, the expansibility can be improved, a battery electronic module is easy to connect in series / parallel, and hot plug is facilitated.

The invention discloses an interdigital electrode for a solar battery. The interdigital electrode is disposed on the shady face of a solar cell and composed of a positive pole and a negative pole; each of the positive pole and the negative pole is composed of main grid lines and auxiliary grid lines; the main grid lines are perpendicular to and connected with the auxiliary grid lines; each main grid line is made by connecting more than two thick grid segments though thin grid lines; the auxiliary grid lines of the positive pole and those of the negative pole are mutually parallel and are mutually spaced. The interdigital electrode with the structure has the advantages that current of the solar battery can be guided out in a balanced way, series and parallel connection of the solar batteries is favored, and welding tension of the interdigital electrode on back-contact solar batteries is higher.

The invention provides a driving method and system for improving the reliability of a SiC inverter. The method belongs to a method for adjusting the junction temperature of a power device in each power unit of the SiC inverter by using an active driving circuit. The needed junction temperature rise and circuit parameters are calculated through the steps 1-7 of low-frequency judgment, junction temperature balance control and junction temperature smooth control, so that the junction temperature of the SiC device in the inverter is increased or decreased. In addition, the method and the system can be used for independently adjusting any power device. The method has the advantages that the SiC inverter is used for conducting junction temperature balance control during stable operation; the average junction temperature of the power device with the worst heat dissipation condition can be reduced; meanwhile, junction temperature smooth control is conducted during low-output-frequency operation of the inverter, junction temperature fluctuation of all the power devices is reduced, and therefore the service life of the whole machine is prolonged, and the reliability of the whole machine is improved.

The invention discloses a soft package power lithium ion battery module. The soft package power lithium ion battery module comprises a module frame, a plurality of bar lithium ion battery cells, a plurality of silica gel bars, a panel and a busbar group, wherein the silica gel bars are arranged among the lithium ion battery cells in a clamped manner; the lithium ion battery cells are arranged inside the module frame along the length direction and the width direction of the module frame side by side respectively; lugs of the lithium ion battery cells are linearly arranged into a lug string andare connected into positive and negative electrodes of the soft package power lithium ion battery module through the busbar group; the panel is installed at one end of the module frame; and the busbargroup is arranged on the panel. Compared with the prior art, the soft package power lithium ion battery module provided by the invention is relatively high in specific strength and relatively small in overall volume, and has the characteristics of high heat resistance, high corrosion resistance, high shock resistance, convenient and simple processing, convenient installation, low production cost,economy and environmental protection and the like.

The invention discloses an automatic vacuum sealing box which is simple in designing principle, convenient to use, less prone to being damaged and suitable for being used in laboratories. The automatic vacuum sealing box can realize automatic air suction to form vacuum for sealing, and can realize automatic repair when air leakage occurs occasionally, and a contact steel ball connecting system sucks air to continue vacuum sealing treatment; a solar panel is arranged to be provided with an inclination angle of 45 degrees, so that incident intensity of sunlight can be improved, and conversion efficiency is improved; an electrode connecting point arranged on the side face brings convenience to series-parallel connection of solar cells, so that consumption of connecting lines is reduced; heat radiation can be realized through a water storage tank and a ventilating passage, and the automatic vacuum sealing box is waterproof and energy saving.

The invention relates to a long-circulation high-safety square ternary polymer lithium ion power battery. According to the long-circulation high-safety square ternary polymer lithium ion power battery, a structure that a lug is formed at one side of a conventional battery is improved into a structure that lugs are formed in different directions at both sides of the battery; and by design of the positions of the lugs, a capacity retention ratio and heat dissipation of the battery are improved, so that temperature variation in the discharging process of the battery is not obvious, the short circuit and micro short circuit phenomena of the battery are greatly reduced, and safety performance of the battery is greatly improved. Moreover, according to the long-circulation high-safety square ternary polymer lithium ion power battery, convenience is also provided for subsequent serial and parallel connection of the battery and production efficiency of a battery PACK is greatly improved.

The present invention relates to an electrochemical device allowing charge and discharge of electric energy by an electrochemical reaction, and a method of manufacturing the same. More particularly, the present invention relates to an electrochemical device which does not require a separate terminal, and a method of continuously producing the same.

The invention discloses an MEMS microwave power sensor capable of realizing online self-detection, which is characterized in that a capacitive MEMS microwave power sensor and a symmetric thermoelectric MEMS microwave power sensor are connected in series to the two sides of an MIM capacitor to form a dual-channel MEMS microwave power sensor; and the resistance value of a load resistor can be detected by applying a reference voltage to a pressure welding block connected with a standard resistor by using a voltage division method. If the detected resistor is in a normal working state, the load resistors on the two sides of a thermopile can obtain the same voltage and convert the voltage into the same heat, that is, the temperature difference between the two sides of the thermopile is completely generated by the input microwave power. The MIM capacitor is arranged on a coplanar waveguide signal line on the left side, so that direct-current interconnection of a coplanar waveguide signal line below an MEMS cantilever beam and a coplanar waveguide signal line behind the MEMS cantilever beam is isolated, and the function of detecting the load resistance while measuring the microwave poweris achieved. The MEMS microwave power sensor has the characteristics of low loss, high sensitivity and online self-detection of terminal resistance.

The invention discloses an AC monitoring method and a system based on a battery electronic module. The system comprises a harmonic detection module, a single battery inner resistance calculation module, a data processing module and a harmonic injection module, wherein the harmonic detection module is used for detecting a harmonic signal in the battery electronic module, the frequency of the harmonic signal is m times that of the power grid, and m is an integer larger than 1; the single battery inner resistance calculation module is used for calculating the single battery inner resistance according to the detected harmonic signal and a single battery model; the data processing module is used for calculating the state of charge of the single battery according to the detected harmonic signal and the single battery inner resistance; and the harmonic injection module is used for outputting a harmonic signal for controlling the battery electronic module to complete conversion between DC and AC according to an instruction of the data processing module. The battery performance measurement cost can be reduced, the battery performance measurement precision is improved and the battery-side quick measurement is realized.

The invention, which belongs to the new energy storage element field, discloses a packaging method for a lithium ion capacitor. The method comprises: a metallic housing, a cover plate, an aluminum leading-out terminal, and a matched sealing element are designed; and a tab with an electric core prepared is welded with the aluminum leading-out terminal, the electric core is assembled into the metallic housing after insulating and welding processing and an upper cover plate and the sealing element are installed, and drying processing and liquid injection are carried out and then preparation of a single lithium ion capacitor is completed. On the basis of the improved packaging material and structure, a novel high-airtightness and high-reliability lithium ion capacitor with simple series and parallel connection is obtained, so that the strength and vibration-resistant performance of the single capacitor and the assembled system can be improved, a heating problem of the working process can be solved, and the product reliability and the service life can be enhanced. Therefore, installation, structural strength, and application process current-carrying problems can be solved.

An electronic component has capacitor chips where terminal electrodes are formed on both end surfaces, individual metal terminals connected to the terminal electrodes, an insulation case accommodating the capacitor chips, and a connecting portion interconnecting a plurality of the insulation cases.

The invention relates to a double-sided capacitive humidity sensor and a preparation method thereof, and belongs to the technical field of sensors. The double-sided capacitive humidity sensor comprises a substrate, a first electrode layer, a first humidity sensing layer, a second electrode layer and a second humidity sensing layer; the first electrode layer and the second electrode layer are connected with the two faces of the substrate respectively, the first electrode layer is covered with the first humidity sensing layer, and the second electrode layer is covered with the second humidity sensing layer. The invention further provides a preparation method of the double-sided capacitive humidity sensor. The double-sided capacitive humidity sensor can perform double-sided humidity detection, can perform humidity detection on a to-be-detected environment more comprehensively, and improves humidity sensing efficiency.

According to a symmetric MEMS directional microwave power coupler with an online self-detection function, the signal lines of the two sections of ACPS transmission lines are symmetrically distributedat the upper side and the lower side of a main transmission line, and the length of each section of ACPS transmission line is a quarter wavelength, so that a symmetrical directional coupler is formed.The incident microwave power is respectively coupled to the third coupling end port and the fifth coupling end port by utilizing the symmetrical directional coupler, so that the symmetric MEMS directional microwave power coupler has the output microwave power of two coupling ends, and the dual-port coupling output is realized. Four connection nodes of a CPW transmission line and an ACPS transmission line of the symmetric directional coupler are respectively provided with four capacitive MEMS microwave power sensors, and the capacitive MEMS microwave power sensors are used for measuring the microwave power transmitted by each port of two branches, thereby achieving an online self-detection function. In addition, by adopting a full-passive structure, the symmetric MEMS directional microwavepower coupler has the characteristics of zero direct-current power consumption, compatibility with a gallium arsenide monolithic microwave integrated circuit process and the like.

The invention relates to a semi-physical simulation system for portable integrated multiple controlled objects. The semi-physical simulation system comprises a circuit connection board, an embedded device and a USB interface. The circuit connection board is equipped with simulation analog circuits of respective basis links of controlled objects commonly used by an automatic control system and a power connection circuit for providing DC power. The surface of the circuit connection board is provided with a basic link identification area, a signal input / output port identification area and a power supply identification area. The embedded device is used as an interface between the controlled objects and a computer, applies an excitation signal input by the computer to the controlled objects through an analog output channel, acquires the response signals of the controlled objects by using the computer through an analog input channel, and is electrically connected with the power connection circuit. By means of level conversion, operating power is provided for the simulation circuits of respective basis links. The semi-physical simulation system satisfies the need for semi-physical simulation of different controlled objects in the classical control theory and the modern control theory.

The invention discloses a modular power supply box. The modular power supply box comprises a shell, a battery arranged in the shell, polar plates and battery jar modules, each battery jar module is ofa U-shaped structure; and the two ends of each battery jar module are provided with a buckle and a clamping groove respectively. Every two adjacent battery jar modules are clamped with each other through a buckle and clamping groove structure; the plurality of battery jar modules are clamped to form a communicated integral U-shaped groove, the corresponding polar plate is arranged in the integralU-shaped groove, the end part of each battery is embedded into a battery positioning groove of the corresponding battery jar module, and two poles of each battery are in contact connection with elastic contacts of the embedded polar plate in the battery jar module. The batteries can be assembled and combined according to the number of the batteries in the power supply box, accurate connection ofthe batteries and the polar plates is achieved, and the connection structure is stable and safe.

The invention discloses an MEMS microwave standing wave meter based on thermoelectric and capacitive dual-channel online detection, which is characterized in that signal lines of an ACPS transmissionline are symmetrically placed at two ends of a main transmission line to serve as auxiliary transmission lines so as to form a symmetrical directional coupler; the symmetrical directional coupler extracts incident microwave power and reflected microwave power to the coupling end and the isolation end of an upper branch and a lower branch respectively; a thermoelectric MEMS microwave power sensor and a capacitive MEMS microwave power sensor are placed on the upper branch and the lower branch respectively, the microwave power of the coupling end and the isolation end of the upper branch and thelower branch is measured, and then the standing-wave ratio is obtained. The thermoelectric MEMS microwave power sensor is suitable for measuring small microwave power, and the capacitive MEMS microwave power sensor is suitable for measuring large microwave power, so that a larger measurement dynamic range of the microwave standing wave meter can be obtained by adopting the two sensors to perform measurement at the same time. The MEMS microwave standing wave meter has the characteristics of low loss, small chip area and compatibility with a gallium arsenide monolithic microwave integrated circuit process.

The invention discloses a state-controllable symmetric thermoelectric MEMS microwave standing wave meter, which is characterized in that a symmetric directional coupler is adopted to extract incidentmicrowave power and reflected microwave power to a coupling end and an isolation end of an upper branch and a lower branch respectively; a thermoelectric MEMS microwave power sensor is adopted to measure the power of each port of the two branches, more accurate incident microwave power and reflected microwave power can be obtained by averaging, and then the standing-wave ratio can be obtained. Thedesigned two branches can work independently to realize a measurement function, so that the failure rate is reduced; in order to realize a state switching function of the MEMS microwave standing wavemeter, an MEMS microwave switch is additionally arranged on an extraction branch of the MEMS microwave standing wave meter; and when the MEMS microwave switch is in an off state, the incident microwave power is not extracted any more and is directly transmitted to an output port, so that the loss of the microwave power when detection is not needed is reduced. The state-controllable symmetric thermoelectric MEMS microwave standing wave meter improves the reliability of the MEMS microwave standing wave meter, and has the characteristics of low loss, small chip area and compatibility with a gallium arsenide monolithic microwave integrated circuit process.

The invention discloses an MEMS integrated microwave standing wave meter with a tunable frequency state, which is formed by adopting a fully passive structure. A coupling port and an isolation port ofan orthogonal directional coupler are respectively connected with a thermoelectric MEMS microwave power sensor to measure the microwave power coupled to the coupling end and the isolation end respectively, and the incident microwave power and the reflected microwave power can be obtained, so that a miniature thermoelectric MEMS integrated microwave standing wave meter is formed. In a detection state, only a small part of input power is coupled, and most of the power is still available, so that the function of online detection of the standing-wave ratio is realized; four identical MEMS variable capacitors increase the electrical length of a straight-through arm and a coupling arm so as to reduce the size of a chip, and the capacitance value can be continuously changed based on the electrostatic principle to continuously tune the center frequency. Therefore, the MEMS integrated microwave standing wave meter provided by the invention has the characteristics of miniaturization, zero direct current power consumption, tunable working frequency state and online detection of the standing-wave ratio.

The present invention discloses an LED module with a temperature signal output and a detection current signal output and an application circuit thereof. The LED module at least comprises an LED substrate, an LED chip group, a current detection device and a temperature detection device. The current detection device and the chip group are connected in series and then are packaged in the LED substrate. The temperature detection device is installed on the LED substrate. The upper and lower sides of the LED substrate are provided with positive and negative electrodes, the polarity of the electrodes at the same side are the same, and the leading-out end of each electrode is provided with a conductive pad. The application circuit comprises multiple groups of LED modules and an external control conversion circuit which comprises an A / D converter, a controller MCU and a D / A converter. The output ends of the current detection device and the temperature detection device of each group of LED modules are connected to the input end of the A / D converter, and the A / D converter is connected to a D / A converter through a controller. According to the LED module and the application circuit, the series and parallel connection between the LED modules is facilitated, the replacement is convenient, the working current and temperature of a single LED module are monitored at any time according to needs, and the normal working of an LED light source is ensured.

A superpower convert device with adjustable integrated combine parameters comprises a three-layer truss and an auxiliary switch block sequentially mounted on the three-layer truss from top to bottom,An inductive reactor block and a capacitor block are connected by flanges between adjacent two-layer trusses, a resin bucket support is installed below the bottom truss, and the auxiliary switch blockcomprises a plurality of thyristor assemblies, wherein the plurality of thyristor assemblies form a matrix block in the form of a cage symmetrical distribution through a plurality of connecting rows,and lead-out wires are arranged at the upper ends of the connecting rows; The inductance reactor block is composed of a plurality of inductance matrix blocks in series or in parallel, and an insulating plate is arranged between adjacent inductance matrix blocks. The invention longitudinally arranges the modules required in the converter circuit into the fixed truss support, and ensures that all the connections are on the same horizontal plane so as to facilitate the serial-parallel connection between the sub-modules. The design is not only quick and efficient, but also saves some unnecessarycosts due to the parameter changes.

The invention relates to a current collecting solar brick, and belongs to the technical field of solar power generation. The solar brick is flexible and convenient to use, and high in energy utilization rate, does not need to intensively occupy a large land area, and can be used in cities. The collecting solar brick comprises a main brick body, a support body and a solar cell panel, wherein the solar cell panel is located between the main brick body and the support body; the end surface of the end, opposite to the solar cell panel, of the main brick body is processed into an inwards concave arc shape, so that the acceptance angle of the solar cell panel is increased; a connection line for connecting adjacent solar bricks is arranged in the brick body; the solar bricks are connected with one another in series in an inserting manner, thus external complicated circuit arrangement is avoided; the use flexibility is high; the solar brick can be paved in the places such as pedestrian streets of cities, waiting halls and building walls, and then collected electric energy is supplied to nearby facilities or power transmission networks.

The invention provides a driving method and system for improving the reliability of a SiC inverter. The method belongs to a method for adjusting the junction temperature of a power device in each power unit of the SiC inverter by using an active driving circuit. The needed junction temperature rise and circuit parameters are calculated through the steps 1-7 of low-frequency judgment, junction temperature balance control and junction temperature smooth control, so that the junction temperature of the SiC device in the inverter is increased or decreased. In addition, the method and the system can be used for independently adjusting any power device. The method has the advantages that the SiC inverter is used for conducting junction temperature balance control during stable operation; the average junction temperature of the power device with the worst heat dissipation condition can be reduced; meanwhile, junction temperature smooth control is conducted during low-output-frequency operation of the inverter, junction temperature fluctuation of all the power devices is reduced, and therefore the service life of the whole machine is prolonged, and the reliability of the whole machine is improved.

A state-controllable symmetrical thermoelectric MEMS microwave standing wave meter of the present invention adopts a symmetrical directional coupler to extract the incident and reflected microwave power to the coupling end and isolation end of the upper and lower branches respectively; The MEMS microwave power sensor measures the power of each port of the two branches, and taking the average value can obtain more accurate incident and reflected microwave power, and then the standing wave ratio can be obtained; the designed two branches can also realize the measurement function, reducing The failure rate is improved; in order to realize the state transition function of the MEMS microwave standing wave meter, a MEMS microwave switch is added to its extraction branch; when the MEMS microwave switch is in the off state, the incident microwave power is no longer extracted and is directly transmitted to the output port. The loss of microwave power when no detection is required is reduced. The state-controllable symmetric thermoelectric MEMS microwave standing wave meter improves the reliability of the MEMS microwave standing wave meter, and has the characteristics of low loss, small chip area and compatibility with gallium arsenide monolithic microwave integrated circuit technology.