663 results about "Energy loss" patented technology

The invention belongs to the technical field of perovskite solar cells, and provides a dibenzofuranyl carbazole derivative and a preparation method and application thereof.The dibenzofuranyl carbazole derivative takes dibenzofuranyl carbazole as a functional group, molecular ordered accumulation is optimized, and hole mobility is remarkably improved; an alkyl carbon chain is used as a linking group, a phosphate group at the tail end is an anchoring group, perovskite interface defects can be effectively passivated, the energy loss at the interface can be reduced, single molecule self-assembly can be realized, the cell performance can be improved, and as a self-assembly monomolecular layer hole transport material, a perovskite solar cell has relatively high photoelectric conversion efficiency, and the photoelectric conversion efficiency can be improved. The service life is long; and the stability is high.

The invention discloses a laser-assisted helium arc penetration fusion welding method, and belongs to the technical field of welding. The problems that according to an existing paraxial laser-electric arc composite structure, the welding track is difficult to control, the energy coupling efficiency is low due to laser energy loss, and weld joint partial melting and undercut defects are caused due to uneven distribution of a welding temperature field due to a generated asymmetric heat source are solved. The welding method comprises the steps of 1, pretreatment; 2, after being focused by a focus lens, the laser is divided into three laser beams through a spectroscope, then the three laser beams are converged again through a plurality of reflectors, three fan-shaped light spots are formed on the surface of the to-be-welded plate after convergence, and finally the focal plane position of the laser is adjusted to be located on the surface of the to-be-welded plate; 3, setting welding current and arc voltage; and fourthly, laser is used for assisting helium arc penetration fusion welding. The method is used for laser-assisted helium arc penetration fusion welding.

Disclosed in the present invention are a scanning box device and an electron accelerator, the electron accelerator comprising an accelerating tube and a deflection coil; the scanning box device comprising a scanning chamber and a scanning box, wherein the scanning chamber is sealingly connected to the scanning box; the scanning chamber is arranged above the scanning box; the accelerating tube is arranged above the scanning chamber; the deflection coil is arranged on the outer side of the scanning chamber; and the scanning chamber is made of a non-metallic material. The present invention can prevent the generation of eddy currents in the scanning box, thus reducing the problems of energy loss and heat generation, improving the performance and stability of the apparatus.

The automatic soot blowing furnace comprises a furnace body, a conveying device is arranged outside the furnace body, the conveying device is used for conveying a cupel into the furnace body, and a furnace door capable of being automatically opened and closed is arranged on the furnace body; and an endoscopic camera is arranged in the furnace body and is used for monitoring a soot blowing end point. The device can control the cupel to automatically enter and exit from the hearth, frequent door opening and closing are not needed, the temperature in the furnace is stable, energy consumption loss is reduced, harmful gas emission is reduced, and cost reduction and efficiency improvement are facilitated; image data are acquired by adopting a light supplementing lamp and an endoscopic camera, so that the method is more reliable and accurate; and the cupel subjected to soot blowing is taken out in time through the material taking module, the loss of metal silver is reduced, and the extraction content is increased. Due to feeding and discharging of the cupel, automatic operation is achieved, the working efficiency is improved by 50%, and the cupel can be in butt joint with full-automatic equipment.

The invention relates to the technical field of temperature control, in particular to a multi-dimensional compensation ablation system temperature control system, method and device and a medium. The system calculates a medium texture index representing the structural change of the load medium by synchronously acquiring electrical parameters and ultrasonic image data; constructing an anti-interference control model comprising an extended state observer, and defining energy transmission loss caused by contact thermal resistance as an extended state variable; calculating an adaptive correction factor based on the texture index, dynamically correcting the state updating process of the observer to obtain an energy loss correction estimated value, and constructing a compensation control model to adjust the output power according to the energy loss correction estimated value; according to the invention, the technical problem of incomplete heating caused by false high temperature of the sensor and system misjudgment due to state deterioration of the contact interface is effectively solved; accurate reconstruction and closed-loop compensation of effective heat flow in a non-ideal contact environment are realized, sufficient energy penetration can still be maintained even if contact thermal resistance is sharply increased, and the integrity of an ablation area is guaranteed.

The invention discloses an assembly type normal-pressure heating and refrigerating system, and relates to the technical field of building energy supply. Comprising an intelligent power grid linkage platform which is used for obtaining a power grid data set, a power generation energy data set and an equipment state data set in real time and preprocessing the obtained power grid data set, power generation energy data set and equipment state data set to obtain standardized fusion data; and the regional supply and demand prediction module is used for dividing regions according to functional attributes and establishing an independent energy consumption feature library. The characteristics of photovoltaic midday output peak and wind power night output stability are dynamically matched, cold and heat storage region division and energy storage rhythm in a single tank are adjusted by combining regional demands of heating, refrigeration and domestic hot water in the next day, photovoltaic electric energy can preferentially drive midday cold storage, wind power energy is efficiently used for night heat storage, and the energy efficiency is improved. And meanwhile, cold and hot fluid storage in the tank is more suitable for the next-day energy consumption scene, energy loss caused by cold and hot mixing is avoided, and new energy consumption and peak shifting and valley filling values are fully exerted.

The invention relates to the technical field of waste gas recovery, and discloses a waste gas recovery treatment device and a printing waste gas treatment technology.The waste gas recovery treatment device comprises a main shell, an auxiliary shell and a strip-shaped shell which are integrally arranged, the auxiliary shell is located on one side of the main shell, and the strip-shaped shell extends to the top of the auxiliary shell from the top of the main shell; two groups of main adsorbers and a plurality of groups of auxiliary adsorbers are arranged in an inner cavity of the main shell. By arranging the heat exchanger, the auxiliary shell, the two sets of main adsorbers and the driving assembly, the two main adsorbers connected in series can be switched for use, rapid saturation of a single main adsorber is avoided, the saturated adsorbers can be subjected to desorption regeneration in the auxiliary shell, recycling is achieved, the overall adsorption efficiency of harmful substances is improved, and in addition, the adsorption efficiency of the harmful substances is improved. By arranging the heat exchange assembly, the rapidly saturated main adsorber can be cooled, then the safety risk is reduced, overheating ignition is prevented, the high temperature of the main adsorber can also heat a nitrogen source for desorption, energy loss is reduced, and more energy is saved.

The invention discloses an optical fiber energy supply system and method for a measuring instrument and an optical energy conversion power supply, the optical fiber energy supply system comprises a power utilization end, and the power utilization end comprises a photoelectric conversion module, a far-end electric energy conversion module, a power supply monitoring module and an optical energy transmission control module. The photoelectric conversion module is used for converting optical energy input by an optical fiber into electric energy to obtain a first power supply, the far-end electric energy conversion module is used for converting the first power supply into a second power supply to serve as a working power supply of a load, and the power supply monitoring module is used for monitoring electrical parameters of the first power supply and the second power supply; and the light energy transmission control module is used for controlling the output power of the photoelectric conversion module to be maintained in a maximum power point and a low-resistance state specific stable region by adjusting the electrical parameters of the second power supply when the output of the second power supply is not smaller than the starting voltage value. The output power of the photoelectric conversion module is set in a double-closed-loop control mode, so that the energy loss of photoelectric conversion is reduced, the actual working temperature is reduced, and the reliability of the photoelectric conversion module is further improved.

The invention provides an integrated laser welding integrated device, and relates to the technical field of laser welding, the integrated laser welding integrated device comprises a workbench, the surface of the workbench is movably connected with a welding machine, the interior of the welding machine is in threaded connection with a mounting frame, the bottom of the mounting frame is provided with a sliding groove, and the interior of the sliding groove is provided with a limiting mechanism; a connecting block is arranged at the upper end of the limiting mechanism, a supporting frame is rotationally connected to the upper end of the connecting block, a cleaning mechanism is arranged in the supporting frame and comprises a supporting rod, and a movable groove is formed in the side wall of the supporting frame; the cleaning mechanism can clean splashed sundries and floating dust on the surface of the light transmitting mirror through the cleaning nozzle while the light transmitting mirror is switched, a telescopic air bag retracts repeatedly, circulation can be kept to clean the interior through the design that internal air moves in a one-way mode, and therefore the purposes that energy loss and light spot distortion can be avoided, and the service life of the light transmitting mirror is prolonged are achieved. And the working performance of the laser welding machine during working is improved.

The utility model is applicable to the field of photovoltaic technology, and provides an HBC battery, a battery pack and a photovoltaic system, the HBC battery comprises a silicon substrate, the silicon substrate is provided with a backlight surface and a light facing surface which are oppositely arranged, the backlight surface of the silicon substrate is provided with a first area and a second area, the first area and the second area are alternately arranged, and the first area and the second area are not overlapped; an amorphous silicon layer is arranged in the first region, a polycrystalline silicon layer is arranged in the second region, the amorphous silicon layer and the polycrystalline silicon layer are shaped, and the refractive index of the amorphous silicon layer is larger than that of the polycrystalline silicon layer. And the parasitic absorption of light of the amorphous silicon layer is reduced, the optical utilization rate is improved, the unnecessary energy loss is reduced, and finally, the photoelectric conversion efficiency and the performance of the HBC battery are comprehensively improved.

The invention relates to a novel organic electroluminescent material, which ingeniously combines deuterated modification and alkyl substitution through the elaborate design of the molecular structure, and realizes the synergistic improvement of various excellent properties. By introducing deuterium, the chemical stability and thermal stability of the material and a doped material are improved, the luminous efficiency and stability of a device are further greatly improved, and energy loss caused by vibration relaxation can be reduced by performing deuteration on phenyl on a 9, 9-diphenylfluorene unit, so that the efficiency of the device is improved. Alkyl substitution can optimize the energy level structure of the material and promote carrier injection and transmission, thereby improving the current efficiency of the device.

The invention discloses a ship waste heat utilization system and an energy recovery method, and the method comprises the steps: monitoring and collecting waste heat parameters in real time through a multi-sensor array, processing data fluctuation through a self-adaptive filtering algorithm, and carrying out the quality evaluation in combination with an effective energy model; according to the real-time effective energy value, the fluctuation index and the host load, the waste heat resource allocation priority is dynamically adjusted, and a multi-mode waste heat resource allocation strategy is synchronously formulated based on the output predicted by the extended Kalman filtering algorithm; a full-state prediction model based on an ORC system is constructed, and a prediction-optimization-compensation adaptive control framework is established; a heat charging and discharging sequence is optimized based on model prediction control, and energy loss is minimized; according to the method, performance indexes of the whole waste heat utilization system are monitored, control parameters are optimized by using a reinforcement learning algorithm based on real-time data, the optimized parameters are applied to the system, and closed-loop control is performed. The problem of insufficient waste heat utilization is solved, energy loss is remarkably reduced, and the waste heat utilization efficiency of the system is improved.

Examples are directed toward a system and method relating to extracting a complex permittivity of a material. For example, a system includes a Vector Network Analyzer (VNA) that performs a first reflection measurement for a front interface of the material, and obtains first time-domain data by applying an inverse fast Fourier transform (IFFT) to the first reflection measurement. The VNA performs a second reflection measurement for a back interface of a material, and obtains second time-domain data by applying the IFFT to the second reflection measurement. The system performs a set of two measurements, including the measurements set forth above at the interfaces with the material, and similar measurements at the locations of the interfaces but without the material (e.g., empty measurements). A processor determines a real part of a refractive index of the material based on velocity, and determines an imaginary part of the refractive index of the material based on energy loss.

The invention provides a resonance control method for an excimer lamp driven by a steep pulse edge, and relates to the technical field of molecular lamps. The resonance control method of the excimer lamp driven by the steep pulse edge comprises the following steps: S1, based on a dielectric barrier discharge equivalent circuit model, adopting a fast Fourier transform spectrum analysis method, measuring fundamental wave impedance characteristics of an LC resonance network through an impedance analyzer, establishing a transfer function containing parasitic parameters: Z (s) = [sLr + 1 / (sCr)] Rarc, and generating an initial resonance parameter set; by establishing a transfer function model containing parasitic parameters, combining fast Fourier transform spectrum analysis and accurately extracting fundamental wave impedance characteristics, the problem of resonance point offset caused by neglecting the parasitic parameters in a traditional method is solved, the precision of an initial resonance parameter set is improved, real-time phase difference data are identified on line by using a recursive least square method, and the real-time phase difference is obtained. Resonant frequency changes are dynamically tracked, frequency drift errors are compensated, resonance point tracking precision is controlled within + / -0.1%, and invalid discharge energy loss is remarkably reduced.

The invention relates to a slit grating-assisted high-quality factor micro-ring resonant cavity sensor, which is connected with an input light source and a detector, and comprises a sensor chip module provided with an input optical fiber, an input grating coupler, a slit grating micro-ring resonant cavity sensor, an output grating coupler and an output optical fiber, eight inclination angles are formed between the input optical fiber and the input grating coupler and between the output grating coupler and the output optical fiber; the slit grating micro-ring resonant cavity sensor comprises an upper channel straight waveguide and a sensing ring. The slit grating-assisted micro-ring resonant cavity sensor is introduced, a sensing test shows that the quality factor (Q value) is higher, the higher quality factor (Q value) means a sharper harmonic peak and lower energy loss, the sensor can accurately detect extremely weak chemical / biological signals in combination with high sensitivity, and the signal-to-noise ratio and the measurement precision are greatly improved.

The invention belongs to the technical field of power transmission tower structure damping, and discloses an inerter particle type power transmission tower damping device with a multidirectional control effect. The inerter is introduced into the particle damper, so that the total mass of the damping device is reduced, and the light weight of the device is achieved. And in consideration of the fact that the seismic response of the power transmission tower is multidirectional motion, the arrangement mode of the particles and the inerter is optimally designed, so that the damping effect of the device is further improved. The inerter can generate inertia force opposite to the structural vibration direction, and the dynamic damping effect of the particle damper is guaranteed while the number of particles is reduced. The inerter composed of the gear and the rack is small in dead weight, compact in structure and easy to install, a power transmission mechanism has low energy loss, the gear and the rack are in rigid meshing transmission, rapid rotation of the flywheel can be achieved, the inerter has high sensitivity to sensing of earthquake response of a power transmission tower, and the inerter is suitable for popularization and application. And large rotation inertia force can be generated in a limited space.

The invention discloses a laser deicing method and device based on ice layer thickness and surface state recognition, belongs to the technical field of fan blade deicing, and aims to solve the problems of low efficiency, large energy loss and high blade damage risk caused by incapability of accurately sensing the ice layer state in the conventional fan blade laser deicing technology. The system comprises an active sensing module and a laser clearing module. The active sensing module measures the thickness and the surface state of an ice layer through infrared laser, and performs multi-dimensional monitoring in combination with a laser radar, a camera and a thermal infrared imager. And the laser clearing module dynamically adjusts laser parameters for deicing according to the sensing result. According to the invention, a non-contact ice thickness measurement method based on infrared laser and a surface state identification method based on relative illumination intensity are created for the first time, and accurate sensing of the ice layer state is realized. A laser and a power supply are fully integrated in the unmanned aerial vehicle, the constraint of a ground platform and optical fibers is eliminated, and the deicing task of the fan blade is accurately completed.

The utility model discloses a tunable laser light source for spectrum sensing, which comprises a tunable DFB laser array chip, a star coupler chip, an SOA array chip and an optical fiber array which are connected through waveguides, tunable lasers in each row are connected through waveguides, the lasers with adjacent wavelengths are distributed on different waveguides, and the optical fiber array is connected with the star coupler chip. The light output end of each waveguide is provided with an SOA. According to the utility model, the star-shaped coupler is adopted to uniformly distribute energy of light with different wavelengths of the tunable laser array to each light output waveguide, and the energy respectively enters different fiber grating sensors or fiber MEMS sensors and the like to realize temperature or strain sensing at the same time and realize multiplexing tree-shaped sensing and demodulation at the same time; the energy loss in the transmission process is reduced; the chips of different material systems are coupled by adopting a photon lead bonding or butt joint growth technology, the photon lead bonding technology does not need high-precision alignment, the processing efficiency is high, low-cost hybrid integration among the chips is realized, and the device is integrally compact.

The invention relates to the technical field of LED lamps, in particular to an LED integrated module direct current illumination control method and system, and the method comprises the steps: collecting the historical operation data of a to-be-detected LED lamp in an LED integrated module and the electrical data of a direct current bus; determining a plurality of lightening durations and power standard-reaching durations of the to-be-detected LED lamp based on the historical operation data of the to-be-detected LED lamp; determining the energy loss degree of the to-be-detected LED lamp based on the plurality of lightening durations and the plurality of power standard-reaching durations; correcting the energy loss degree based on the electrical parameters of the direct current bus in the plurality of power standard-reaching durations to obtain a power regulation and control coefficient; and performing power regulation and control on the to-be-detected LED lamp based on the power regulation and control coefficient. According to the method, the output power of the to-be-detected LED lamp can be accurately regulated and controlled, and the illumination quality is improved.

According to the cavity type bulk acoustic wave resonator with the stepped cavity and the preparation method of the cavity type bulk acoustic wave resonator, the stepped cavity is adopted to buffer and reduce the pressure of the upper layer structure, the structural strength and stability are higher, the cavity is not prone to collapse during release, meanwhile, the edge stress is buffered and reduced, the material stripping risk is reduced, and the yield is increased. And the structure of the invention enhances edge heat dissipation, and is beneficial to improving the power capacity. The ScAlN thin film with good performance can be obtained by adopting the magnetron sputtering ScAlN as the piezoelectric layer and using Ti / Bt / AlN as the seed layer for growth, and the stability, the reliability and the comprehensive performance of the device are improved. The passivation layer is prepared on the surface of the device, so that mechanical damage of a subsequent process to a sensitive structure can be effectively prevented, sound wave energy can be limited in a piezoelectric oscillation region, and transverse leakage and energy loss are reduced; and the electric coupling between the FBAR and the substrate can be reduced, the radio frequency loss is reduced, and the Q value of the device is improved.

The invention provides a photovoltaic hydrogen production power supply system based on a three-phase staggered converter. The photovoltaic hydrogen production power supply system comprises a photovoltaic cell array, the three-phase staggered converter, a PEM electrolytic bath and a control unit, the photovoltaic cell array is electrically connected with the MPPT module, the MPPT module is electrically connected with the three-phase staggered converter and the PEM electrolytic cell, the PEM electrolytic cell is electrically connected with the three-phase staggered converter, and the control unit is further electrically connected with the three-phase staggered converter; compared with a traditional single-channel converter, solar energy resources can be more fully utilized, energy waste is reduced, stable direct-current voltage and current are provided for a PEM electrolytic bath, the hydrogen production efficiency of the electrolytic bath is improved, and the energy-saving effect of the PEM electrolytic bath is improved. And meanwhile, corrosion to an electrode material of the electrolytic bath is reduced.

The utility model discloses a reflecting mirror applied to high-power laser, which comprises a base material structure layer, a reflecting dielectric film structure layer is arranged on the reflecting surface of the base material structure layer in a film coating mode, and the reflecting dielectric film structure layer is composed of 46 layers of high-refractive-index film structures and 46 layers of low-refractive-index film structures which are alternately overlapped from inside to outside. The reflector applied to the high-power laser can obtain high reflectivity in the application scene of the high-power laser under the working wave band of 915 + / -10nm, 976 + / -10nm or 1064 + / -10nm. Meanwhile, the dielectric film of the reflector is extremely low in laser absorptivity, and energy loss can be effectively reduced.

The application relates to a photothermal synergic phase change composite film based on a gradient type carbon-based heterostructure and a preparation method thereof. 2 The core innovation comprises the following points: 1) the electronic tunneling effect between the hybrid orbitals and the metal d orbitals excites local plasmon resonance, and the photothermal conversion efficiency is improved; 2) the phonon confinement effect of the hierarchical carbon-based topological skeleton suppresses the heat relaxation energy loss; and 3) the micro-nano porous structure is used to regulate the dynamics of the core material, and the controllable release of thermal energy in a wide temperature range is realized. The material and a high polymer binder are compounded and calendered through an interpenetrating network to form a flexible functional film, the preparation process is simple, the material exhibits the synergic performance of efficient thermal energy storage and release in the fields of wearable devices, battery thermal control and building energy saving, and the problems of low photothermal conversion efficiency, large heat loss and poor temperature range adaptability of traditional phase change materials are solved.

The invention provides an illumination system and projection equipment. The lighting system comprises a light source module, a wavelength conversion device, a first light guide assembly, a second light guide assembly and a micro-lens array module. The light source module is used for providing a plurality of green and blue laser beams. The wavelength conversion device is used for generating fluorescent light beams. The first light guiding assembly and the second light guiding assembly are used for guiding a fluorescent light beam and a green laser light beam respectively. The fluorescent light beams form fluorescent light spots on the first area of the first side face of the micro-lens array module. The plurality of green laser beams form a plurality of green light spots on a second area of the first side surface of the micro-lens array module. The first region is adjacent to the second region. The illumination system and the projection equipment provided by the invention avoid energy loss and have good light uniformity.

The invention belongs to the technical field of terahertz, relates to terahertz communication, and particularly discloses a quasi-optical resonant cavity and a terahertz pulse compression system. According to the invention, the pulse generation module and the coupling compensation module are connected in parallel and are connected to the common reflector through the common coupler, so that function decoupling is realized. In a pulse compression stage, the common coupler introduces an incident terahertz wave beam into two optical paths, and destructive interference occurs between two paths of leakage signals by adjusting the coupling compensation module, so that zero coupling loss is realized, and the problem of large energy loss is solved. Meanwhile, the pulse generation module can independently adjust the optical path of the pulse generation module to control the pulse width, and the adjustment process does not affect the optimized interference condition, so that the high robustness of adjustment is ensured. In the output stage, energy is released by switching the state of the common coupler. Compared with the prior art, low-loss accumulation and robust pulse width continuous adjustment are realized at the same time, so that the terahertz pulse compression effect is remarkably improved.

The invention discloses a power supply design method for a carbon nanotube film electric heating curing composite shell, and relates to the technical field of forming and manufacturing. The method comprises the steps that a correlation model based on the law of conservation of energy is established, output parameters of a power supply are calculated through the correlation model, and the correlation model integrates the energy balance relation of the Joule heat effect, the heat convection loss and the heat radiation loss of the carbon nanotube film, the energy balance relation is that the increase of the internal energy per unit volume of the composite material is equal to the difference between the electric energy input by the carbon nanotube film and the energy loss of heat convection and heat radiation. And based on the correlation model, determining the theoretical range of the power supply output power and voltage meeting the requirements of the curing system, and according to the theoretical range, selecting the adaptive power supply specification to realize the accurate control of the heating rate and the highest heating temperature of the composite material. Quantitative calculation of the power supply power is realized through the correlation model based on the law of conservation of energy, the problem of insufficient theoretical basis in a traditional method is solved, and the design efficiency and precision are remarkably improved.

Provided in the present disclosure are a light-emitting device and a display panel comprising same, and a display apparatus. The light-emitting device comprises: a first carrier layer, a light-emitting layer and a second carrier layer, which are arranged in a stacked manner, wherein the light-emitting layer comprises a first light-emitting layer, a second light-emitting layer and a third light-emitting layer, which are arranged in a stacked manner, with the first light-emitting layer being arranged close to the first carrier layer, and the first light-emitting layer and the third light-emitting layer have different carrier transport rates. The light-emitting device of the present disclosure has a structure of three light-emitting layers, wherein the first light-emitting layer which is close to an anode side has a good hole injection / transport capability, the third light-emitting layer which is close to a cathode side has a good electron injection / transport capability, and the second light-emitting layer in the middle has a good hole and electron transport capability. Electrons and holes can be better injected into the light-emitting layers, an exciton recombination zone can also be broadened, and a larger part of the recombination zone is made to be within the light-emitting layers, so as to reduce the energy loss of non-radiative transition, thereby improving the efficiency and stability of devices.

The invention relates to a water heater fixed-point preheating method and system based on self-learning user habits. The water heater fixed-point preheating method comprises the following steps that S1, historical data of all water consumption points of a user under the zero cold water condition are continuously obtained; s2, updating the preference score of each water consumption point based on the historical data of each water consumption point; s3, comparing the preference scores of the water consumption points, and determining the water consumption point with the highest score as a target water consumption point; and S4, a user instruction is received, and a water heater is controlled to conduct fixed-point preheating on a water using pipeline corresponding to the target water using point. According to the method, intelligent fixed-point preheating under the condition of non-specified water consumption points is realized in a mode of intelligently learning user habits, so that excessive preheating is avoided, the energy loss is further reduced, and the use experience of the user is improved.

The application provides a phase optical element and a method for obtaining stable transmission of light intensity of non-diffraction light beams. The phase optical element having an equivalent light field modulation function to the amplitude optical element is used to replace the amplitude optical element, so that the light intensity distribution of the non-diffraction light beams is obtained. Compared with the amplitude optical element, the phase optical element has the advantages of small energy loss, low cost, easy processing and the like, and is suitable for more extensive practical applications.

The present invention provides a control method, device, and air conditioner for an air conditioner. The method comprises: when a compressor in the air conditioner is started and the operating mode is cooling mode, starting a solar heating device, controlling a first electrically controlled three-way valve to execute a first path, and controlling a second electrically controlled three-way valve to execute a second path; and when the operating time of the compressor is greater than a first preset value, controlling the first electrically controlled three-way valve and the second electrically controlled three-way valve based on a third temperature and a fourth temperature. The control method, device, and air conditioner provided by the present invention can rely on the renewable and pollution-free characteristics of solar energy to directly heat the refrigerant using solar energy, effectively supplementing the heat exchange capacity of the air conditioner, improving the efficiency of the compressor, reducing energy loss during energy conversion, using solar energy to prevent liquid hammer in the compressor, and reducing the energy consumption of the air conditioner.