131results about How to "Small current" patented technology

The invention discloses a braille point display device. According to the Braille point display, the shape memory alloy material is used as the lifting structure, and the lifting structure is controlled to deform under the power-on condition, so that the point display part is driven to extend or retract relative to the mounting main body. Compared with piezoelectric driving and electromagnetic driving equipment, the shape memory alloy material can adjust the deformation quantity through the power-on state, large deformation quantity can be generated through a small structural material, the size of a lifting structure does not need to be increased, the driving structure of the braille convex points is effectively simplified, the size of the equipment is reduced, and the production cost of the equipment is reduced. And meanwhile, the locking mechanism is arranged, so that the telescopic state of the point display part is kept, the situation that the lifting structure is always kept in a power-on state is avoided, and the power consumption of equipment is reduced.

The invention discloses soft tissue high-frequency welding equipment, and belongs to the technical field of surgical operating instruments, the soft tissue high-frequency welding equipment comprises an electrocoagulation pen main body, the electrocoagulation pen main body is connected with an insulating rod, the insulating rod is further provided with a conduction pipeline parallel to a cutter head part, and a temperature sensing unit comprises a hinting structure and a telescopic action structure. The electric resection temperature of the knife head part can be sensed in real time through the action structure in the temperature sensing unit, and when the knife head part is overheated, the action structure can be converted into an extension state from an initial retraction state and triggers the indicating structure to protrude out of the surface of the electrocoagulation pen main body, so that a doctor is reminded to cool the knife head part in time; therefore, in the electric resection operation process of the hypertrophy tonsil and adenoid body of the child, the situation that the scalpel head part is overheated in the long-time continuous state of the operation and burns the tissue of the affected part of the child is effectively avoided, the safety of the soft tissue resection operation of the child is improved, and postoperative recovery and healing of the operative part of the child are facilitated.

The current collector comprises a foil and a conductive layer, the conductive layer and the foil are stacked, the conductive layer comprises a first area and a second area, the first area is closer to the edge of the foil than the second area, the conductivity of the first area in the first direction is A, the conductivity of the second area in the first direction is B, and A is smaller than B. By arranging the foil and the conductive layer, the conductivity A of the first region and the conductivity B of the second region meet the condition that A is less than B, the conductivity of the edge of the current collector can be inhibited, and the current of the current collector can be reduced, so that the temperature rise of the edge region is reduced, the temperature difference between the edge of the current collector and the middle of the current collector can be reduced, lithium precipitation is reduced, and the service life of the battery cell is prolonged.

The invention discloses a nonlinear time-delay regulation and control device, which solves the problem that an electric appliance is unstable when the electric appliance is connected into a circuit when the current in the circuit is nonlinear and has large fluctuation, and comprises a box body, a control panel is arranged on the front surface of the box body, and wiring terminals are symmetrically arranged on the two sides of the box body. A power connection adjusting assembly is installed in the box body and used for controlling and adjusting, a top adjusting and controlling assembly is installed at the top end of the box body and used for adjusting non-linear current, the power connection adjusting assembly comprises a transverse plate movably installed in the box body, and end contacts are symmetrically installed at the two ends of the transverse plate. A normal power connection unit is installed on the transverse plate and used for power connection adjustment. In the working process, when the arranged transverse plate is located on the lower portion, a circuit can be normally connected into an electric appliance, after the transverse plate moves upwards, the circuit can be connected into regulation and control equipment, and the circuit can be conveniently regulated and controlled.

The invention belongs to the technical field of generators, and particularly relates to a hybrid nano generator and a power management circuit thereof, comprising a shell, and an electromagnetic power generation unit, a friction power generation unit and a piezoelectric power generation unit which are located in the shell; and a corresponding power management circuit. The interior of the shell is connected with the top end and the bottom end in a penetrating mode through a glass fiber connecting shaft. A friction power generation unit, an electromagnetic power generation unit and a piezoelectric power generation unit are sequentially mounted at the bottom end, opposite to the shell, of the glass fiber connecting shaft; the piezoelectric power generation unit comprises at least four cantilevers and a disc, one end of each cantilever is fixed on the disc, and a mass block is placed on the upper surface of the other end; the center of the disc is connected with a glass fiber connecting shaft, and the inner sides of the upper surfaces of the four cantilevers are covered with PZT materials. According to the hybrid nano generator, vibration energy in the environment can be converted into electric energy, and energy is supplied to wireless sensor network nodes.

The invention relates to an outdoor communication cabinet which comprises a cabinet body and further comprises a bearing box, a gas storage part, a gas spraying pipe and a driving part. An air storage part is installed above the bearing box, an opening in the right end of the bearing box communicates with the cabinet, and a dustproof net is fixed in the bearing box; the air storage part comprises a shell and a piston plate, an elastic cylinder is connected between the piston plate and a rear side plate of the shell, an air inlet valve is arranged on the rear side plate of the shell, a first sliding hole is formed in the top plate, on the right side of the dustproof net, of the bearing box, and the upper end of the air spraying pipe penetrates through the first sliding hole and extends into the piston plate. The elastic cylinder is communicated with the upper end of the gas ejector pipe through a one-way gas outlet valve arranged on the piston plate; the driving part comprises a connecting box and a rotating shaft, the interior of the connecting box is divided into an upper cavity and a lower cavity through a partition plate, the rotating shaft is rotationally arranged in the upper cavity, the upper portion of the rotating shaft is connected with a pull rope, and the other end of the pull rope backwards penetrates through the shell to be connected with the piston plate. According to the invention, the problem that the dustproof net of the outdoor communication cabinet for isolating dust is easily blocked by dust is solved.

The invention provides a method for prolonging the service life of an electrode during resistance spot welding of an aluminum-zinc plated steel plate, which relates to the technical field of welding and comprises the following steps: machining the aluminum-zinc plated steel plate into a preset workpiece; performing pretreatment; setting welding process parameters; welding; the welding spot quality evaluation is used for obtaining the nugget diameter of the welding spot on one hand and comparing the nugget diameter of the welding spot with a preset nugget diameter index on the other hand, and when it is judged that the nugget diameter of the welding spot meets the requirement, shearing force value judgment is executed, and therefore an evaluation result is output; and electrode quality evaluation: on one hand, acquiring the working surface diameter of the electrode, and on the other hand, comparing the working surface diameter change of the electrode with the preset working surface diameter change so as to evaluate the wear condition of the electrode. By optimizing the resistance spot welding process, the current is reduced, so that the instantaneous welding temperature is reduced, the generation of Cu-Zn alloy with poor electrical conductivity and thermal conductivity and the adhesion on the electrode are reduced, the temperature rise of the electrode is delayed, and the service life of the electrode is prolonged.

The invention relates to the technical field of photovoltaic panels, in particular to an automatic cleaning device for a solar photovoltaic panel. According to the technical scheme, the electromagnetic attraction assembly comprises a protective shell, an iron column, a coil, a hydraulic assembly, a magnetic metal block, an annular magnet and a hydraulic telescopic rod, the protective shell is fixedly installed on the side of an upper expansion plate, the iron column is fixedly installed in the protective shell, and the coil electrically connected with a solar panel is wound around the cambered surface of the iron column; a hydraulic assembly is fixedly installed in the protective shell and located at the end of the iron column, and an annular magnet is fixedly installed at the end of the hydraulic assembly. After the surface of the solar panel is covered with dust, the power generation efficiency of the solar panel is reduced, and the current flowing in the coil is reduced, so that the hydraulic telescopic rod extends out to enable the cleaning piece to move on the surface of the solar panel, the dust on the surface of the solar panel is scraped, and the influence of dust covering on power generation of the solar panel is avoided.

The invention discloses a method for protecting a transistor, a protection circuit and a control circuit. The protection circuit comprises a first protection circuit; one end of the first protection circuit is connected with the driving signal output end of the driving circuit, and the other end is connected with the driving end of the to-be-driven transistor; the first protection circuit is used for sharing the charging voltage of the driving end capacitor of the transistor to be driven when the driving voltage provided by the driving circuit enables the first voltage of the first protection circuit not to reach the first working voltage; when the driving voltage provided by the driving circuit enables the first voltage to reach the first working voltage, entering a first conduction state, and controlling the conduction or turn-off of the to-be-driven transistor according to the driving voltage in the first conduction state; and under the condition that the transistor to be driven is conducted, when the driving voltage provided by the driving circuit enables the second voltage of the first protection circuit to reach the second working voltage, the first protection circuit enters a first turn-off state, and the transistor to be driven is controlled to be turned off or conducted after entering the first turn-off state.

The invention relates to an input voltage power failure locking and startup and shutdown instruction control circuit and a working method thereof. The circuit comprises a short circuit protection unit, a surge suppression unit, an EMI filtering unit, a DC / DC conversion unit, an output filtering unit and a control circuit unit. The control circuit unit comprises an input bus power failure locking unit, a shutdown control instruction unit, a startup control instruction unit and a startup and shutdown state locking unit. The method is suitable for a power supply and distribution system in aerospace electronic equipment, and can be widely applied to other various power supply and distribution systems which work reliably for a long time. According to the method, the reliability of pulse instruction control on and off of the power supply and distribution system in the electronic equipment for space navigation can be guaranteed, when the primary input bus voltage breaks down or returns to normal, the power supply can be effectively in the off state, the effective on and off instruction can be retransmitted through the platform, and it is guaranteed that the system is reliably restarted and operated.

The utility model relates to the technical field of power transmission line fittings, and discloses a wire strain clamp capable of effectively inhibiting heating of a drainage plate, which comprises a steel anchor (1), a strain clamp body (2), a drainage clamp (3), a bolt assembly (4) and a bypass flexible jumper wire (5), a steel core part of a wire is crimped in the steel anchor, an aluminum stranded wire part is crimped in an aluminum pipe of the clamp body, and the bypass flexible jumper wire (5) is crimped in the strain clamp body. The jumper wire is crimped in the main drainage aluminum tube of the drainage wire clamp; one end of the bypass flexible jumper wire is crimped in the auxiliary drainage aluminum tube of the drainage wire clamp, and the other end of the bypass flexible jumper wire is crimped in the drainage aluminum tube of the strain clamp body; the strain clamp body drainage main plate is connected with the main drainage connecting plate through a bolt assembly. According to the utility model, by arranging the bypass flexible jumper wire, the current flowing through the strain clamp is shared; the main drainage plate and the main drainage connecting plate of the wire clamp body are sawtooth-shaped, the contact area is increased, the contact resistance is reduced, and the bolt assembly for connecting the main drainage plate and the main drainage connecting plate is provided with the anti-loosening hoop, so that loosening is avoided, and heating of the drainage plate is effectively inhibited.

This application provides a perovskite light-emitting module and its fabrication method, belonging to the field of semiconductor optoelectronic device manufacturing technology. The perovskite light-emitting module includes: a substrate, and multiple perovskite light-emitting units located on the substrate; wherein, along the direction away from the substrate, each perovskite light-emitting unit sequentially includes an anode, a hole transport layer, a perovskite layer, an electron transport layer, and a cathode; the multiple perovskite light-emitting units are arranged in series, and in two adjacent perovskite light-emitting units, the cathode of the preceding perovskite light-emitting unit is electrically connected in series with the anode of the following perovskite light-emitting unit.

The application relates to a direct current power distribution system with a direct current bus architecture reconstruction capability, comprising a plurality of alternating current power sources, a plurality of corresponding AC / DC energy routers, a plurality of corresponding direct current bus switching switches, positive / zero / negative direct current buses, a power frequency isolation transformer and a plurality of DC / DC charging modules constituting a direct current load. The working state of the system can be transformed among two unipolar direct current bus architectures and a true bipolar bus architecture. Compared with the prior art, the application has the advantages of flexibly meeting the needs according to the changes of load access and the like.

The utility model discloses a hoist electromagnet of permanent magnet and electromagnetic combination, including excitation coil, magnetic pole one, magnetic pole two, iron core and non -magnetic protection board, its characterized in that still is equipped with permanent magnet block group, the permanent magnet block group horizontal setting is between magnetic pole one and magnetic pole two, and is located the top of non -magnetic protection board. The utility model discloses hoist electromagnet increased permanent magnet block group, through the common effect of permanent magnet magnetic potential and electromagnetic magnetic potential and suck up the attracted object, can reduce excitation coil current when hoisting and transporting material, reduce the energy consumption that excitation coil generates, strengthen the magnetic force intensity regulation simultaneously, realize the various operations of attracting material and discharging.

The utility model provides a power conversion system. The power conversion system comprises power equipment, a converter and a power supply device, the power equipment comprises a plug and a controller, the plug is provided with a first conductive part, and the first conductive part is electrically connected with the controller; the converter is configured to be electrically connected with the power supply device and the plug, and a second conductive part is arranged on the converter; the controller is used for receiving a level signal generated by the contact of the first conductive part and the second conductive part, and the level signal is used for controlling the power equipment to enter a current limiting mode. The utility model aims to solve the technical problem that how to ensure that the current passing through the panel does not exceed the rated current of the panel is the problem that needs to be solved urgently at present.

The utility model relates to a TTL and RS232 intelligent automatic switching circuit comprising a change-over switch, a first movable contact of which is used for connecting a sending pin of a communication interface, a second movable contact of which is used for connecting a receiving pin of the communication interface, and a first static contact and a second static contact of which are respectively connected to a receiving end and a sending end of a TTL signal transmit-receive circuit, the third static contact and the fourth static contact are respectively connected to the receiving end and the transmitting end of the RS232 signal transceiving circuit; the control switch is connected in series between the coil of the change-over switch and the voltage source, and the controlled end of the control switch is connected to the output end of the signal acquisition circuit for controlling the action of the change-over switch; and the input end of the signal acquisition circuit is used for being connected with a sending pin of the communication interface and is used for continuously outputting a high-level signal to the controlled end of the control switch when receiving a level signal smaller than a preset voltage so as to control the control switch to be in a turn-off state. The circuit provided by the utility model can avoid the problem that the plug of the communication interface is plugged in a wrong position in the production link of electronic equipment.

The invention relates to a transformer closing excitation inrush current suppression device of a power supply and distribution circuit system. Wherein the branch switch is arranged on a branch led out of a low-voltage side bus of a power grid system and serves as a main switch of the branch. The boosting transformer and the branch switch are located on the same branch, and the high-voltage winding side of the boosting transformer is connected to the wire outlet side of the branch switch. The closing inrush current suppression device and the branch switch are located on the same branch, and the outgoing line side of the closing inrush current suppression device is connected to the low-voltage winding side of the boosting transformer. Through the branch circuit formed by the branch switch, the boosting transformer, the closing inrush current suppression device and the power generation equipment, the original direct closing of the main transformer and the generation of the excitation inrush current are converted into the excitation inrush current generated when the branch circuit completes the closing and opening operation. Therefore, the magnitude of the impulse current formed on the low-voltage winding side of the main transformer depends on the maximum allowable working condition of the power generation equipment side, and the rated current of the power generation equipment is far smaller than the rated current of the low-voltage winding side of the main transformer, so that the peak value of the excitation surge current is clamped.

The application provides a display panel and a display device; the display panel comprises a test terminal, a first electric connecting piece, a switching part and a second electric connecting piece; the first electric connecting piece comprises electrically connected first and second transmission parts; one end of the second transmission part away from the first transmission part is electrically connected with the test terminal; the switching part is electrically connected with one end of the first transmission part away from the second transmission part; the second electric connecting piece is electrically connected with one end of the switching part away from the first electric connecting piece; the second electric connecting piece and the first electric connecting piece are arranged in different layers; the surface impedance of the first transmission part is greater than that of the second transmission part, which is equivalent to increasing the impedance of the first transmission part, reducing the current when transmitted to the position of the via hole, and avoiding the technical problem of wire breakage caused by explosion of the wires in the switching area.

The application provides a thyristor-based multi-port hybrid DC circuit breaker and a control method, comprising: a plurality of main branches and a shared branch; all the main branches are connected to the shared branch; the shared branch comprises a first thyristor branch, a power supply side circuit breaker unit and a fault side circuit breaker unit, the thyristor branch is used for bearing fault current in the process of breaking of a fast mechanical switch in the main branch; the fault side circuit breaker unit is composed of a first capacitor, a first discharge resistor and a first lightning arrester element in parallel connection; the power supply side circuit breaker unit is composed of a second thyristor branch, a current limiting resistor, a second capacitor, a second discharge resistor and a second lightning arrester, wherein the second capacitor, the second discharge resistor and the second lightning arrester are connected in parallel to form a second branch, the thyristor branch and the current limiting resistor are connected in series to form a first branch, and the first branch is connected in series to the second branch.

The invention relates to an LCC-MMC extra-high-voltage direct-current transmission line fault restarting method and an extra-high-voltage direct-current transmission system, and belongs to the technical field of extra-high-voltage direct-current transmission. When a line fault is detected, the LCC converter station controls the fault current to a direct current reference value; the MMC converter station controls the sub-module voltage to a rated value, the outer loop control output is switched to the sub-module voltage controller output, the direct current bias part of the direct current voltage reference value is switched to the direct current controller output, and the direct current reference value is the direct current reference value; after the deionization time is over, the DC bias part of the MMC converter station rises to a reference value, and the constant current control is quitted at the same time; when the current converter port voltage is detected to be greater than the starting value, the sub-module voltage control is quitted, and the outer loop control output is switched to the direct current voltage controller output; and the LCC converter keeps a current control mode, and when the DC voltage is detected to be greater than a completion value, the LCC converter station switches the current reference value to a real-time current reference value, and the line fault restart is completed.

The invention relates to the technical field of switching power supplies, in particular to a switching power supply circuit, a control method thereof, a chip and electronic equipment. The switching power supply circuit comprises a transformer, a primary control circuit, a secondary control circuit, a first transistor, a second transistor, a third transistor and at least one discharge branch, the third transistor is arranged in a secondary winding loop of the transformer, and a control electrode of the third transistor is connected with the secondary control circuit. According to the switching power supply circuit provided by the invention, after the secondary control circuit controls to open the second transistor, the current on the transformer is gradually reduced and reversed, then the secondary control circuit controls to open the third transistor, and the discharge branch is turned off at the same time, at the moment, the negative current value in the transformer lasts for a period of time until the second transistor is turned off; when the negative current value in the transformer is gradually reduced, the first transistor is controlled to be turned on, so that zero-voltage switching of the first transistor can be realized, and the working efficiency of the switching power supply circuit is improved.

The utility model discloses an energy-saving vacuum pump, which is used for extracting a certain volume of gas in a vacuum object system and at least comprises a driving motor, an eccentric wheel, a wobble plate, a diaphragm air bag sheet, a wobble plate transmission shaft and a diaphragm bracket. According to the wobble plate transmission shaft, the wobble plate transmission shaft can rotate smoothly, the wobble plate transmission shaft rotates more smoothly at a high speed, current consumed due to friction is reduced, and the energy-saving effect is achieved. And moreover, the abrasion phenomenon caused by long-term high-speed rotation of the balls is effectively reduced, meanwhile, the transmission resistance is reduced through the bearing design, the current loss is reduced, and the energy-saving effect is achieved.

The utility model provides a battery pack charging circuit and electric equipment. The battery pack charging circuit comprises a first anode charging terminal, a first cathode charging terminal, a charging capacitor and a first contactor. The first anode charging terminal is used for connecting a battery pack anode terminal to form a first anode circuit, and the first cathode charging terminal is used for connecting a battery pack cathode terminal to form a first cathode circuit; one end of the charging capacitor is electrically connected with the first positive electrode circuit, and the other end of the charging capacitor is electrically connected with the first negative electrode circuit; the first contactor is connected with the charging capacitor in series and located between the first positive electrode circuit and the first negative electrode circuit, so that large current can be prevented from flowing through the first contactor when the direct-current boost charging port is used for charging, the current flowing through the first contactor is greatly reduced, the size of the first contactor is reduced, the arrangement space on a whole vehicle is saved, and the service life of the whole vehicle is prolonged. And the occupied power distribution space of the whole vehicle is saved.

The utility model discloses a circuit for an ESD (Electro-Static Discharge) device, a chip and electronic equipment, and belongs to the technical field of electronics. The circuit comprises an ESD device, a parasitic triode, a current-limiting resistor and an external power supply, the collector electrode of the parasitic triode is connected with the base electrode of the ESD device and the emitter electrode of the ESD device, the base electrode of the parasitic triode is connected with the collector electrode of the ESD device, and the emitter electrode of the parasitic triode is connected with the external power supply. And the current-limiting resistor is arranged between the emitting electrode of the parasitic triode and the external power supply. The current limiting resistor is connected between the emitting electrode of the parasitic triode of the ESD device and the external power supply, and the current of the collector electrode is reduced, so that the distance between the parasitic triode of the ESD device is reduced, the starting risk of the parasitic triode is reduced, meanwhile, the chip area can be reduced, and the purpose of reducing the chip cost is achieved.

The application discloses the technical field of biological medicine and blood products and relates to a high-efficiency blood product production device and process, which comprises a shell, a first electromagnet fixedly connected to the inner top wall of the shell, a second electromagnet fixedly connected to the inner bottom wall of the shell, a magnet ring in sliding fit with the inner side wall of the shell, a filter plate fixedly connected to the inner side wall of the magnet ring, the filter plate dividing the shell into an upper chamber and a lower chamber, a plurality of filter holes being formed in the filter plate, a plurality of upper pipes fixedly connected to the top wall of the filter plate, a plurality of lower pipes fixedly connected to the bottom wall of the filter plate, the upper pipes and the lower pipes being in communication with the filter holes, a feeding port being formed in the top wall of the upper chamber, a first discharging port being formed in the bottom wall of the lower chamber, a collecting assembly being in communication with the first discharging port and used for sucking the blood plasma in the shell, and a second discharging port being formed in the side wall of the upper chamber.

A multi-layer U-shaped permanent magnet auxiliary synchronous reluctance outer rotor relates to the technical field of motors, and comprises an annular rotor core, a plurality of permanent magnet units are arranged in the rotor core, the permanent magnet units are symmetrically arranged around a rotating shaft of the rotor core, each permanent magnet unit is sequentially provided with two U-shaped permanent magnet groove groups from inside to outside along a d axis, each U-shaped permanent magnet groove group is composed of two side permanent magnet grooves and a middle permanent magnet groove, linear magnetic steel is arranged in the middle permanent magnet groove of the outer U-shaped permanent magnet groove group, and linear magnetic steel is arranged in the side permanent magnet grooves of the inner U-shaped permanent magnet groove group. The rotor provided by the invention is good in flux weakening speed expansion capability.

The utility model discloses an MEMS scanning module and an electromagnetic scanning module. The MEMS scanning module includes: an MEMS scanner having a frame and a mirror rotatable relative to the frame along a torsion beam; the two limiting structures are respectively connected with the MEMS scanner from the upper side and the lower side of the MEMS scanner; wherein each limiting structure comprises two limiting units, the two limiting units are located on the same side of the MEMS scanner, and a movable part in the MEMS scanner is limited through the two limiting structures. The limiting structures are arranged on the upper side and the lower side of the MEMS scanner, so that the displacement amount of a movable part in the MEMS scanner in the impact process is limited, the deformation amount of the movable part is controlled, and the impact resistance and the reliability of the movable part are improved; the magnet in the electromagnetic scanning module is arranged corresponding to the limiting structure, and the limiting structure can play a role in magnetic conduction, so that the effects of converging and enhancing the magnetic field are realized.

The present disclosure relates to a battery power supply regulating circuit, a regulating method, a charging line and a terminal device. The charging circuit is used for charging a double-core battery, and the circuit comprises a Buck step-down circuit module, a first charge pump circuit module, a second charge pump circuit module, a battery charging and discharging control module and a system power supply module; the input end of the Buck step-down circuit module and the input end of the first charge pump circuit module are respectively connected with an AC / DC adapter; the first output end of the Buck step-down circuit module is connected with the second charge pump circuit module; the second output end of the Buck step-down circuit module is connected with the system power supply module; the battery charging and discharging control module is connected with the controlled end of the Buck step-down circuit module, the controlled end of the first charge pump circuit module, the controlled end of the second charge pump circuit module and the double-core battery; the first charge pump circuit module and the second charge pump circuit module are respectively connected with the double-core battery; and the second charge pump circuit module is further connected with the system power supply module.

The invention discloses an electric furnace transformer, comprising a voltage regulating switch, a voltage regulating coil, a high-voltage coil, a low-voltage coil and a series coil. The voltage regulating coil, the high-voltage coil, the low-voltage coil and the series coil are wound on the same iron core. The series coil can increase the voltage on the coil based on the principle of electromagnetic induction, thereby reducing the current of the coil. There is no need to set up a transformer separately. The current transmitted to the voltage regulating coil can be reduced while the transmission power remains unchanged, thereby ensuring that a low-cost voltage regulating switch can be selected, so as to reduce the possibility that the voltage regulating switch cannot work normally because the current of the voltage regulating coil is too high, so that the voltage regulating switch can normally change the turns ratio between the voltage regulating coil and the low-voltage coil, that is, the low-voltage coil outputs a voltage and current that meets the power demand of the electric furnace or arc furnace.

The present invention provides a crystalline silicon cell assembly and a solar photovoltaic cell panel. The crystalline silicon cell assembly comprises: two symmetrically parallel connected cell arrays, each cell array comprises at least two cell strings, each cell string comprises a plurality of sliced ​​cells connected in series, the sliced ​​cells are 1 / 3 cell slices obtained by cutting a photovoltaic cell sheet, in each cell array, two adjacent cell strings have opposite polarities on the same side and are connected in series with each other, and the lead-out end of the crystalline silicon cell assembly is located in the middle of the cell assembly.