41results about How to "Improve cooling/heating efficiency" patented technology

The invention discloses a control method of a room air conditioner. The method comprises the following steps that a silent mode of the air conditioner is started; the practical environment noise of a located room of the air conditioner is detected; the target noise during the operation of the air conditioner is regulated according to the practical environment noise, wherein the practical environment noise is greater than the target noise. The control method of the room air conditioner has the advantages that the work capability and the noise of the air conditioner are considered, higher refrigeration/heating efficiency is realized, and meanwhile, the noise disturbing on users is avoided. The invention also provides a control system of the room air conditioner and an air conditioner.

Provided is an air conditioning system using ground heat. The system includes one or more indoor units, at least one outdoor unit, a ground heat exchanger, and a plurality of auxiliary heat sources. The one or more indoor units condition indoor air. The at least one outdoor unit communicates with the indoor units via a plurality of pipes, and includes an outdoor heat exchanger where heat exchange occurs. The ground heat exchanger is connected with the outdoor heat exchanger of the outdoor unit, and laid under the ground to allow heat to be exchanged between ground heat and a circulating medium circulating through the ground heat exchanger. The plurality of auxiliary heat sources are installed on one side of the outdoor unit to assist heat exchange of the outdoor heat exchanger. Two or more auxiliary heat sources are simultaneously used, or one of them is selectively used.

The invention belongs to the field of control over central air-conditioners and provides an optimal control method and system of a central air conditioner water pump. The central air conditioner water pump comprises a chilled water pump and a cooling water pump. The method includes the steps of regularly detecting whether the water outlet temperature of the chilled water pump is higher than the preset minimum water outlet temperature or not; if yes, carrying out PID adjustment on the frequency of the chilled water pump according to the preset return water supply temperature difference or preset return water supply pressure difference or forecasting loads of the chilled water pump; regularly detecting whether the current wet bulb temperature is smaller than or equal to the preset minimum wet bulb temperature; if yes, carrying out PID adjustment on the frequency of the cooling water pump according to the preset return water supply temperature difference of the cooling water pump; and if not, detecting the current water draining temperature of the cooling water pump and adjusting the frequency of the cooling water pump according to the current water draining temperature. The optimal control method and system of the central air conditioner water pump can adjust the frequency of the chilled water pump and the frequency of the cooling water pump dynamically, and lower the energy consumption of a central air conditioner system while effectively improving the refrigeration/heating efficiency of the central air conditioner system.

An air conditioner is disclosed, which is suitable for improving its configuration and facilitating its assembly. The present invention includes a cabinet via which air is sucked or blown, a shroud guiding an air flow within the cabinet, a motor provided within the cabinet to forcibly circulate the air within the cabinet, an air guide penetrated by a rotational shaft of the motor, and a motor mounter coupled to the shroud to securely mount the motor thereon. Accordingly, the assembly configuration is simple and the corresponding assembly process is convenient, the vibration of the motor can be minimized, the assembly is facilitated, and the migration of the cold or hot air can be securely cut off.

The present invention provides an indoor unit of air conditioner, which has right and left air sucking ports and front display and possesses effective stereo cooling and heating and raised operation convenience. The indoor unit of air conditioner includes a casing with side air sucking ports and opened top, a display set in the front of the casing to show the operation state of the air conditioner, a diffuser capable of being lifted on the casing and with air exhaust port, a blower set inside the casing to force airflow from the air sucking port to the air exhaust port, and a heat exchanger set in the air sucking ports for heat exchange of air through the blower.

The present invention relates to a connecting structure of a refrigerant pipe, capable of connecting each end part of a refrigerant pipe for inducing a refrigerant gas flow between indoor and outdoor units for making up a cooling device, a heating device, or a cooling/heating device in order to maintain the airtightness. Moreover, the connecting structure of a refrigerant pipe comprises: a valve installed in the corresponding place of indoor and outdoor units of an air conditioner; a refrigerant pipe including a pipe expansion part in the form of a trumpet in the front; an outer sleeve including an outer pipe expansion part inserted into the refrigerant pipe and combined with the outside of the pipe expansion part; an inner sleeve including an inner pipe expansion part inserted into and combined with the pipe expansion part; a nut screwed with the valve by being inserted into the refrigerant pipe to accommodate the outer sleeve inside; a first sealing member in a form to correspond to the form of the inner sleeve having contraction and expansion forces while ensuring airtightness between the inner sleeve and the lower part of the valve; and a second sealing member having contraction and expansion forces while ensuring airtightness between the outer sleeve and the inside of the nut.

The present invention relates to a self-generating type air flow diffusion fan having composite functions for attaching a ceiling-mounted cassette air conditioner indoor unit. The air flow diffusion fan is configured in a method such that: the fan is installed on a ceiling inside a building and is conveniently attached to a conventional ceiling cassette air conditioner indoor unit equipped with four blow-off holes surrounding an intake hole in four directions of one intake grill at a front center thereof; a filtration fan function to filtrate and collect large and fine dust drifting in the contaminated air while maintaining the original function of the indoor air circulating ceiling fan, an air purifying function to effectively sterilize/disinfect various bacteria and viruses in the contaminated air, and an insect exterminating function against mosquitoes, etc. are executed at the same time; an air purifying measure such as a light emitting diode, etc. can be operated with electrical power generating energy in accordance with an electrical energy conversion of the own revolution energy of the fan, thus the fan saves energy and is environmentally friendly, since an additional energy input due to the operation of the air purifying measure is not required; and composite functions of an air flow circulating and diffusing fan, a sterilizing and deodorizing device, a drying device, and an insect exterminating device are executed by a single apparatus to provide a pleasant indoor environment.

The integral locomotive air conditioner is installed integrally in the top of locomotive via installing angles and includes indoor set and outdoor set in parallel inside one integral casing. Most of the pipe parts are inside the outdoor set to reduce noise and the interference on the inside. The integral locomotive air conditioner includes one casing, one indoor set, one outdoor set, installing angles, one indoor set wind scooper, one air intake grate connecting the air inlet of the indoor set and the top of the locomotive, and one air outlet grate connecting the air outlet of the indoor set and the top of the locomotive.

The invention discloses an air conditioner control method. The air conditioner control method comprises the steps that the indoor environment temperature and the set temperature in an action space of an air conditioner are obtained; and operation parameters of a motor are adjusted according to the indoor environment temperature and the set temperature, so that the opening degree of a wind shield is adjusted or a filter screen is driven to move. The invention further discloses the air conditioner and a computer readable storage medium, and the effect of improving the comfort of the air conditioner is achieved.

The invention discloses a control method of a room air conditioner. The method comprises the following steps that a sleep mode of the air conditioner is started, wherein the sleep mode comprises a first sleep stage and a second sleep stage; the operation of the air conditioner is controlled according to a sleep noise curve and a temperature curve corresponding to the sleep mode, wherein in the first sleep stage, the operation of the air conditioner is controlled according to the temperature curve, and in the second sleep stage, the operation of the air conditioner is controlled according to the sleep noise curve. The control method of the room air conditioner has the advantages that the work capability and the noise of the air conditioner are considered, higher refrigeration/heating efficiency is realized, and meanwhile, the noise disturbing on users is avoided. The invention also provides a control system of the room air conditioner and an air conditioner.

The invention discloses a kitchen air conditioning system. The kitchen air conditioning system comprises an air conditioning assembly and an oil fume suction assembly, the air conditioning assembly comprises a compressor, a first heat exchanger and a second heat exchanger, wherein the compressor, the first heat exchanger and the second heat exchanger are communicating through a refrigerant pipeline, the oil fume suction assembly comprises a fan and an air outlet channel communicating with an air outlet of the fan, and the kitchen air conditioning system is characterized in that the compressoris integrated on the oil fume suction assembly, and the first heat exchanger is arranged in the air outlet channel. The kitchen air conditioning system has the advantages that the compressor is integrated on the oil fume suction assembly, the overall structure of the system is more compact, when the kitchen air conditioning system is installed, an air conditioner external unit does not need to beindependently installed, the installation is more convenient, in addition, the air conditioning system installs the first heat exchanger of the air conditioning assembly within the air outlet channelof the oil fume suction assembly, flue gas discharged into the air outlet channel can take away heat of the first heat exchanger or heat the first heat exchanger, and then the energy efficiency of anair conditioner is improved.

The invention belongs to the technical field of subway air outlets and discloses an adjustable air outlet for a subway driver's cab. The adjustable air outlet comprises a main frame, a supporting frame, shifting rods, a shifting wheel, transverse blades, longitudinal blades, transverse connecting rods, a transverse blade shaft, a guide block and longitudinal connecting rods. The supporting frame is arranged in the transverse middle of the main frame, and the transverse blades are arranged above the longitudinal blades. The shifting wheel is arranged in the middle of the supporting frame, the transverse blades on left and right sides of the supporting frame are mounted symmetrically, upper portions of right ends of the right transverse blades are inserted in the main frame, lower portions of the right ends of the right transverse blades are inserted in the corresponding transverse connecting rod, and upper portions of the left ends of the right transverse blades are inserted into the supporting frame. The shifting rods are symmetrically arranged at the front end of the main frame and positioned above the longitudinal connecting rods. Upper portions of front ends of the longitudinalblades are inserted into the longitudinal connecting rods, and lower portions of front and rear ends of the longitudinal blades are inserted into the main frame. The adjustable air outlet has advantages that the air outlet direction can be accurately controlled through the shifting wheel and the shifting rod to quickly adjust the internal temperature of the driver's cab, and accordingly comfort isimproved for a subway driver.

The invention discloses a permanent magnet motor, a compressor and an air conditioner. The permanent magnet motor comprises a stator and a rotor, wherein the stator comprises a stator iron core and astator winding, the stator iron core comprises multiple stator teeth which are arranged in the circumferential direction of the stator iron core, a stator slot is defined between every two adjacent stator teeth, and the stator winding is wound on the stator teeth; the rotor and the stator are arranged in a manner of internal and external partition, the rotor comprises a rotor iron core and a permanent magnet embedded on the rotor iron core, the maximum distance between a peripheral outline of the cross section of the rotor and the center of the cross section of the rotor is D1, the axial length of the rotor iron core is L, and the rated power of the permanent magnet motor is P; and the D1, L and P satisfy a relation that the D1/L is not less than 1.7, and P/(D12*L) is not less than 8.5, wherein the unit of the P is W, and the unit of each of the D1 and L is cm. The permanent magnet motor disclosed by the invention has higher power density and operating efficiency, the realization of the miniaturization design is convenient, and the cost is reduced.

The invention belongs to the technical field of air conditioners, and particularly relates to an air conditioner outdoor unit. To achieve the purpose of increasing the refrigerating capacity of the air conditioner outdoor unit on the premise of limiting the installation size, the air conditioner outdoor unit comprises an outdoor unit shell, an outdoor heat exchanger and a draught fan, wherein the outdoor heat exchanger and the draught fan are arranged in the outdoor unit shell. The air conditioner outdoor unit is characterized in that a front panel of the outdoor unit shell is provided with two air openings, one is an air inlet, and the other is an air outlet; and in the running process of the draught fan, external air flow can enter the outdoor unit shell along the air inlet and flow out along the air outlet after flowing through the outdoor heat exchanger. Due to the fact that the air supply direction and the air outlet direction are on the same plane, that is the air inlet and the air outlet are both formed in the front panel of the outdoor unit shell, air entering and air outgoing cannot be limited by the surrounding space, and the heat exchanging efficiency of the outdoor unit heat exchanger is further improved.