73results about How to "Meet output requirements" patented technology

The invention discloses an air conditioner and a low-temperature cooling control method and device of the air conditioner. The low-temperature cooling control method of the air conditioner includes the following steps: detecting the current temperature of the outdoor environment; judging a temperature interval to which the current temperature of the outdoor environment belongs, wherein the temperature of the outdoor environment is divided into a plurality of temperature intervals, and each temperature interval corresponds to one draught fan rotating speed; controlling the air conditioner to run in the cooling mode, and controlling an outdoor draught fan of the air conditioner to run at the draught fan rotating speed corresponding to the temperature interval to which the current temperature of the outdoor environment belongs. In this way, the cooling requirement of a user in the low-temperature environment can be met; for example, the air conditioner can normally carry out cooling at the temperature ranging from -15 DEG C to 20 DEG C, and the requirement that 100% of the cooling capacity is output can be met.

The invention discloses a pressure-proof proportion electromagnet based on an integrated type flux sleeve, which comprises a flux sleeve (5), a push rod (9), an armature (3) and the like, wherein a flux sleeve inner cavity (55) is arranged inside a front section (51) and a middle section (52) of the flux sleeve (5); an inner cavity end face (54) is formed at an interface of the flux sleeve inner cavity (55) and a rear section (53); the armature (3) is arranged inside the flux sleeve inner cavity (55); a limit piece (7) is arranged between a right end face (31) of the armature (3) and the inner cavity end face (54) of the flux sleeve (5); a radial operating air gap I (101) is formed by a gap between the side wall of the flux sleeve inner cavity (55) and the side wall of the armature (3); and an axial operating air gap II (102) is formed by a gap between the right end face (31) of the armature (3) and the inner cavity end face (54) of the flux sleeve (5). The proportion electromagnet has the characteristics of high pressure resistance, good force characteristic proportion performance, long effective stroke length and the like.

The invention discloses a k-type disc proportional electromagnet, comprising an armature (2), a push rod (6) and the like, wherein the longitudinal section of the armature (2) is in a k shape, the armature (2) comprises a bottom (21), an annular side wall (20) and an outer ring (25); the end part of the annular side wall (20) is provided with a V-shaped slot (22); the gap between the annular side wall (20) and a magnetic inductive outer shell (9) forms a radial working air gap I (203); the gap between the annular side wall (20) and a magnetic inductive core column (8) forms a radial working air gap II (204); the gap between the outer ring (25) and the magnetic inductive outer shell (9) forms an axial working air gap III (201); the gap between the bottom (21) and the magnetic inductive core column (8) forms an axial working air gap IV (202); and a permanent magnet (4) is arranged between the magnetic inductive core column (8) and the magnetic inductive outer shell (9). The k-type disc proportional electromagnet has the good proportional property and other characteristics.

The invention discloses a stage-type load switch operation mechanism. The stage-type load switch operation mechanism comprises a front support plate, a rear support plate, an operation shaft, a two-sectional switch-on output crank arm, a switch-on trip limiting shaft, a switch-on trip interlock crank arm, an interlock rotating shaft, an interlock plate, a switch-on trip position plate, a switch-off trip rotating shaft, a switch-off energy storage position rotating shaft, a gear set, a mechanism driving rotating shaft, a switch-on spring and a switch-off spring. The switch-on stroke is divided into two stages, in a first stage, the switch-on spring does not store energy, and a mechanism output shaft rotates along an operating shaft of an operation mechanism; in the second stage, the switch-on spring stores energy in compression, the mechanism output shaft does not rotate until the energy storage mechanism trips away, the switch-on spring releases energy to drive the mechanism output shaft to rotate in acceleration so as to drive the load switch to switch on. The stage-type load switch operation mechanism has fewer parts and is simple to assemble; the output capability of the switch-on spring of the operation mechanism is optimized through the stage-type operation.

The invention provides a multifunctional electromagnetic pulse experiment instrument which comprises a wide-range adjustable DC power supply composed of two regulated power supplies; the experiment instrument also comprises a multi-frequency direct-reading and ultra-low frequency adjustable pulse frequency controller, a high voltage generator demodulated by the pulse frequency controller, a high voltage ammeter, a movable experimental component and a pulse switch signal output socket; an experiment platform with a high-voltage discharge prevention shell is constructed on the top part of the experiment instrument; the movable experiment component and an adjustable electromagnet are mounted on the platform. The multifunctional electromagnetic pulse experiment instrument not only can output the stable high-voltage direct current, but also can output the pulse high-voltage electricity with adjustable frequency and pulse width, and output the pulse magnetic field or provide independent pulse switch signals for various electromagnets. The multifunctional electromagnetic pulse experiment instrument can be adopted for conducting a plurality of high-voltage static experiments and the experiments in biological, physical and medical fields efficiently and conveniently. The invention provides an electromagnetic pulse experiment instrument which has the advantages of complete functions, convenient application, low cost and practicality for the college teaching and research.

The invention discloses a composite energy storage microgrid interconnection coordination control method and system. The method comprises the steps as follows: an energy storage management station receives a control command of a microgrid energy management system and state feedback commands of a super-capacitor energy storage module and a lithium iron phosphate battery energy storage module, controls a first energy storage converter and a second energy storage converter, and controls a super-capacitor and a lithium iron phosphate battery to work under any one of the following working conditions: the first working condition: a composite energy storage system adopts the working condition of smoothening power fluctuation; the second working condition: the composite energy storage system adopts the working condition of tracing and scheduling the output; and the third working condition: the composite energy storage system adopts the working condition of peak shaving and valley filling. According to the method and system provided by the invention, the running stability of the microgrid is improved, and the security and stability of the wind power generation system and the photovoltaic power generation system accessing the large power grid system are ensured.

The invention discloses a stepped disc type ratio electromagnet which comprises an armature (2), a push rod (6) and the like, wherein the armature (2) comprises a bottom (21), an annular side wall (20) and an outer ring (25); the end surface of the annular side wall (20) is a stepped surface (22); a radial working air gap I (203) is formed between the annular side wall (20) and a magnetic conduction shell (9); a radial working air gap II (204) is formed between the annular side wall (20) and a magnetic conduction iron core column (8); an axial working air gap III (201) is formed between the outer ring (25) and the magnetic conduction shell (9); an axial working air gap IV (202) is formed between the bottom (21) and the magnetic conduction iron core column (8); and a permanent magnet (4) is arranged in an annular space formed by the magnetic conduction iron core column (8) and the magnetic conduction shell (9). The ratio electromagnet has the characteristics of good ratio property and the like.

The invention relates to a spacecraft relative orbit finite time anti-saturation control method with respect to a non-cooperative target, and is to solve the problems that in an existing control scheme, the design of a controller is complex, the solving process is troublesome, system buffets due to frequent switching of the controller since sliding-mode control is adopted for the weak strain capacity for unknown factors of the spacecraft relative orbit transfer process under pulse control, and since an existing method fails to consider saturation of the controller in the practical engineering, expected value cannot be converged in the finite time and a certain limitation exists in the practical engineering application. The method comprises the following specific steps: establishing a relative orbit motion dynamics model; carrying out decoupling on a relative orbit motion dynamics model C-W equation to obtain a decoupled double-integral system; and designing a finite time saturation controller according to the decoupled double-integral system. The method is applied to the spaceflight field.

The invention provides an arbitrary waveform generation system. The arbitrary waveform generation system comprises an arbitrary waveform generation device and a clock and synchronization unit, The clock and synchronization unit is connected with the arbitrary waveform generation device and is used for sending a synchronization clock and a synchronization pulse signal to the arbitrary waveform generation device; The arbitrary waveform generation device comprises a plurality of arbitrary waveform generation units; the plurality of arbitrary waveform generation units form an array structure; thereceiving unit is used for receiving the synchronous clock and the synchronous pulse signal sent by the clock and synchronous unit; The synchronous clock and the synchronous pulse signal are used forcontrolling output of synchronous arbitrary waveforms of the arbitrary waveform generation units, the problem that flexible trigger control needed by quantum computing control cannot be achieved through an existing arbitrary waveform generator is solved, and the technical effect that flexible trigger control needed by quantum computing control can be achieved is achieved.

The invention belongs to the power transmission field and discloses a maximum efficiency tracking DC-DC converter applied to an inductive power transmission system and a control method thereof. The converter comprises an LCL-S compensation topology, an uncontrolled rectifier bridge and a double-tube Buck-Boost circuit. Output of the LCL-S compensation topology is connected with input of the uncontrolled rectifier bridge, and the output of the uncontrolled rectifier bridge is connected with the input of the double-tube Buck-Boost circuit. In the invention, inductive power transmission constantvoltage control is realized by adjusting a phase shift angle between leading and lagging bridge arms of a full-bridge inverter circuit, impedance matching is realized through controlling a DSBB switching tube by adopting a staggered duty ratio bias modulation strategy, and an equivalent load at an output side of a rectifier bridge is always kept at a maximum efficiency load point. According to theinvention, a double-tube structure can effectively reduce a voltage and current stress of the switching tube so that system output has a wider voltage range and a higher power level. Through adjustment of a buck-boost mode, an adjustable range of a load of the system is wider when the system achieves maximum efficiency tracking, and applicability of the system is greatly increased.

The invention provides a composite frequency alternating magnetic field generating device. The generating device comprises a three-axis orthogonal magnetic field transmitting antenna group, an excitation current generating circuit group and a magnetic field frequency power control unit; after each transmitting coil of the three-axis orthogonal magnetic field transmitting antenna group is subjected to current excitation of the excitation current generating circuit group to generate a dipole magnetic field; magnetic fields generated by 3*3 transmitting coils are subjected to vector superposition at a spatial point, and a composite frequency magnetic field is spatially generated; the frequency and intensity of the magnetic field can be continuously adjusted under the control of a control signal of the magnetic field frequency power control unit, and the frequency of the generated composite magnetic field is accurate; the requirement of positioning and tracking data output rate can be met, and the fast positioning and tracking can be achieved.

A self-cleaning extruding apparatus with two co-rotating screws and the method thereof are provided here. Said apparatus is comprised of a screw mechanism, a barrel (1), a feeding port (10), a venting port (11), and a discharge port (12). Said screw mechanism is comprised of the first screw with one tip (3) and the second screw with two tips (4). There is a baffle in the channel of the first screw and the baffle's height is lower than that of the screw flight. The baffle will cause hyperbolic perturbation in the shape of a ‘figure 8’ flow pattern above the top of the baffle. The first and second screws rotate at the same speed and touch each other at all times, thereby achieving a self-cleaning function.

The baffle will generate chaotic mixing in the screw channel caused by the hyperbolic perturbation. Topological chaos is also introduced into the screw channel by the mechanism ‘one part divided into two parts, then two parts converging into one part, and then one part divided into two parts once more’. Each of the screws in the present invention uses an asymmetrical flow channel geometrical shape, such that a periodic action like ‘compression—expansion—further compression—expansion further’ works. The above three enhancement mechanisms work together to efficiently accelerate melting and mixing.

The invention relates to a full-power grid voltage inverter welding machine. The full-power grid voltage inverter welding machine comprises a structure of the welding machine and multiple control circuits in the machine; the control circuits consist of multiple circuit boards; the composed circuit boards relate to capacitance boards, IGBT inversion boards, IGBT drive boards, switch power supply boards, control boards, voltage conversion or switching boards and output rectifying boards; a novel cooling air channel is adopted and capable of effectively achieving the effects of preventing the dust, improving the cooling effect and improving the work reliability of the welding machine; meanwhile, both maintenance and assembly are convenient; the welding machine can adopt full-power grid voltage, that is, single-phase 220 V and 380 V and three-phase 380 V power supply voltage is used for supplying electricity; and meanwhile, through arrangement of several control circuits, the work reliability of the welding machine is improved, the digital adjustment and display of welding parameters are realized, and the work reliability and performance are greatly improved compared with several welding machines with the same type.

The invention discloses a variable-water-volume pure-water waterway system. The variable-water-volume pure-water waterway system comprises a first water inlet valve, a front filter element, a water pump, a reverse-osmosis filter element, a controller, a first concentrated-water channel and a first pure-water channel. The first water inlet valve, the front filter element, the water pump and the reverse-osmosis filter element are communicated sequentially. The first concentrated-water channel is communicated with a concentrated-water end of the reverse-osmosis filter element, and the first pure-water channel is communicated with a pure-water end of the reverse-osmosis filter element. A fourth water inlet valve and a mass-flow concentrated-water valve are arranged on the first concentrated-water channel sequentially. A fifth water inlet valve and a high-pressure switch are arranged on the first pure-water channel sequentially. The variable-water-volume pure-water waterway system is characterized in that the variable-water-volume pure-water waterway system further comprises a backflow channel, a second concentrated-water channel and a second pure-water channel; the backflow channel is communicated with a water inlet end and a water outlet end of the water pump, the second concentrated-water channel is communicated with the concentrated-water end of the reverse-osmosis filter element, and the second pure-water channel is communicated with the pure-water end of the reverse-osmosis filter element; a second water inlet valve, facing the water inlet end of the water pump from the water outlet end of the water pump, is arranged on the backflow channel; a third water inlet valve and a small-flow concentrated-water valve are arranged on the second concentrated-water channel sequentially; a quick heating module is arranged on the second pure-water channel; all the electric elements are connected with the controller electrically.

The invention discloses a network code stream converter. The network code stream converter comprises a microprocessor, a first memorizer, a work instruction lamp, a FLASH, a PCI (peripheral component interconnect) bridge chip, an Ethernet interface and a decoder are connected to the microprocessor, an IDE (integrated drive electronics) interface is connected to the PCI bridge chip, and a second memorizer and a digital/analog conversion circuit are connected to the decoder. The network code stream converter has the advantage of applicability to MPEG (moving picture experts group)-4 video code stream conversion, is enabled to meet the requirement for television signal output and to have a self-adaptive resource allocation capability, and is high in video image quality.

The invention provides a current pulse amplitude calibration method applied to a DBS and an automatic calibration acquisition circuit. The automatic calibration acquisition circuit in a deep brain stimulator DBS circuit is used for acquiring a current pulse amplitude; and through a current pulse amplitude calibration method, according to the acquired actual output current pulse amplitude, an inputvalue of DAC is continuously adjusted so that the actual output current pulse amplitude corresponding to each current is equal to a theoretical output current pulse amplitude or approaches the theoretical output current pulse amplitude within a tolerance range. The calibrated actual output current pulse amplitude better meets an output requirement of the deep brain stimulator DBS circuit, and output precision is relatively high.

The invention provides a high-torque integrated driving joint suitable for a deep-sea robot, and belongs to the technical field of underwater motors. The high-torque integrated driving joint suitable for the deep-sea robot comprises a machine shell, a power generation assembly, a speed reduction assembly and an output flange assembly, wherein the power generation assembly is arranged in the machine shell and comprises a motor shaft; the speed reduction assembly is arranged on one side of the power generation assembly and comprises a harmonic input shaft, a wave generator, a flexible gear, a rigid gear and a rigid gear bearing, the flexible gear comprises a flexible gear body part and a flexible gear flange part, the harmonic input shaft is coaxially connected with the motor shaft, the wave generator is installed on the harmonic input shaft, and the flexible gear is arranged on the wave generator in a sleeving mode; the flexible gear flange part is connected with the machine shell, the rigid gear bearing is arranged on the flexible gear body part in a sleeving mode and connected with the flexible gear flange part, and the rigid gear is arranged on the flexible gear body part in a sleeving mode and connected with an inner ring of the rigid gear bearing; and the output flange assembly is suitable for being connected with the rigid gear. High-torque output is achieved, and the structure is compact.