WO2021057001A1 - 空调室外机及空调设备 - Google Patents

空调室外机及空调设备 Download PDF

Info

Publication number
WO2021057001A1
WO2021057001A1 PCT/CN2020/082114 CN2020082114W WO2021057001A1 WO 2021057001 A1 WO2021057001 A1 WO 2021057001A1 CN 2020082114 W CN2020082114 W CN 2020082114W WO 2021057001 A1 WO2021057001 A1 WO 2021057001A1
Authority
WO
WIPO (PCT)
Prior art keywords
fan
outdoor unit
air conditioner
air
stator
Prior art date
Application number
PCT/CN2020/082114
Other languages
English (en)
French (fr)
Inventor
李萍
胡义明
武谷雨
吴迪
Original Assignee
美的威灵电机技术（上海）有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201910926397.XA external-priority patent/CN112577125A/zh
Priority claimed from CN201921629367.4U external-priority patent/CN210568879U/zh
Application filed by 美的威灵电机技术（上海）有限公司 filed Critical 美的威灵电机技术（上海）有限公司
Priority to EP20869083.4A priority Critical patent/EP3940304A4/en
Publication of WO2021057001A1 publication Critical patent/WO2021057001A1/zh
Priority to US17/519,021 priority patent/US12007128B2/en

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/38—Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/007—Axial-flow pumps multistage fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/002—Axial flow fans
    • F04D19/005—Axial flow fans reversible fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0653—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the motor having a plane air gap, e.g. disc-type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/20—Electric components for separate outdoor units
    • F24F1/22—Arrangement or mounting thereof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/128—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas using air-gap sleeves or air-gap discs
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/029—Control issues
    • F25B2313/0294—Control issues related to the outdoor fan, e.g. controlling speed
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/24—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets axially facing the armatures, e.g. hub-type cycle dynamos

Definitions

  • This application relates to the technical field of air conditioners, and in particular to an outdoor unit of an air conditioner and an air conditioner including the outdoor unit of the air conditioner.
  • the outdoor units of air conditioners on the market are usually single-stage fans. After a period of use or when used in harsh environments, the air volume will be greatly attenuated, thereby reducing the heat exchange effect of the outdoor heat exchanger.
  • an object of the present application is to provide an outdoor unit of an air conditioner.
  • Another object of the present application is to provide an air conditioner including the above-mentioned outdoor unit of the air conditioner.
  • the technical solution of the first aspect of the present application provides an outdoor unit of an air conditioner, comprising: a cabinet provided with a first air exchange port and a second air exchange port; and a fan located in the Inside the casing and located between the first air exchange port and the second air exchange port, the fan includes a motor, a first fan and a second fan, and the motor includes two rotors that rotate independently of each other and A first output shaft and a second output shaft respectively connected to the two rotors, and the first output shaft and the second output shaft are respectively along the axial direction of the motor toward the same side as the axial direction of the motor A protrusion, the first output shaft and the second output shaft are fixedly connected with the first fan and the second fan, respectively, and are used to drive the first fan and the second fan to rotate independently of each other.
  • the air conditioner outdoor unit provided by the technical solution of the first aspect of the present application has a casing provided with a first air exchange port and a second air exchange port, and airflow can enter the casing through the first exchange port and flow out from the second air exchange port; It can also enter the casing through the second air exchange port in the reverse direction, and flow out of the casing through the first exchange port.
  • the fan includes a first fan and a second fan. The two fans work together, which can significantly increase the air volume of the fan, so that the air conditioner outdoor unit can increase the air volume in an environment with poor heat dissipation conditions such as closed periphery and internal blockage.
  • the air volume and wind force of the outdoor unit of the air conditioner can improve the heat exchange effect of the outdoor heat exchanger and help improve the energy efficiency of the air conditioner.
  • the motor since the motor includes two rotors that rotate independently of each other and two output shafts, the two rotors can rotate at the same speed, different speeds, the same direction or different directions, so that the two fans can rotate at the same speed, different speeds, the same direction or Rotating in different directions, the airflow generated by the two fans can be superimposed on each other to make the fan send air to the first air exchange port or the second air exchange port or the casing or other structures in the casing at a constant or varying wind speed or wind shape , That is: it can control the air volume and wind force, but also control the air supply direction and angle to meet the different needs of the outdoor unit of the air conditioner, and greatly improve the performance of the outdoor unit of the air conditioner.
  • the heat exchange effect of the outdoor heat exchanger can be improved; when the fan blows air to the first air exchange port, it can blow out the moisture, rain, etc. in the casing.
  • Make the outdoor unit of the air conditioner have a self-drying function; when the fan sends air to the cabinet or other structures in the cabinet (such as outdoor heat exchangers, inlet grills, etc.), these parts can be impacted by airflow and/or vibration , So that the dust, debris, oil and other substances will peel off and play a self-cleaning effect.
  • the two rotors can start only one according to the situation to reduce energy consumption; or start sequentially to control the start sequence of the first fan and the second fan, so that the fan that starts later is started by the wind of the fan that starts first. It is beneficial to ensure the normal start of the fan under headwind conditions or other harsh environments.
  • this solution uses one fan to drive two fans to rotate, and realizes the integration of the fans in structure, so that the coaxiality of the first fan and the second fan is better guaranteed, which is beneficial to increase the air output and improve the work.
  • Efficiency Compared with the scheme of using two motors to drive two fans separately, it reduces the number of installation procedures for the outdoor unit of the air conditioner, and reduces the number of mounting racks for installing the motor.
  • the installation process reduces the difficulty of assembly, saves time and labor costs.
  • it saves the installation space of the installation frame, reduces the installation space of the fan, and helps reduce the size of the outdoor unit of the air conditioner, which is beneficial to the outdoor unit of the air conditioner. miniaturization.
  • the first output shaft and the second output shaft protrude from the same axial side of the motor, so that one end of the motor can output two powers that do not interfere with each other, compared to protruding toward both sides of the motor’s axis.
  • the axial distance between the two fans can be further reduced, thereby further improving the efficiency of the fan; compared to using two motors to drive two fans, the axial space of one motor is saved, which is beneficial to the axial direction of the outdoor unit of the air conditioner The size is reduced.
  • the motor can output two independent torques, which is equivalent to using one motor to realize the function of two independent motors, so it has It has the obvious advantages of compact structure, strong practical function, convenient installation, small axial size and low manufacturing cost.
  • the bending direction of the blades of the first fan, the bending direction of the blades of the second fan, the rotation direction of the first fan, the rotation direction of the second fan, the blowing direction of the first fan, and the blowing direction of the second fan It has the following relationship: when the blades of the first fan and the second fan have opposite bending directions, and the rotation direction of the first fan is opposite to the rotation direction of the second fan, the blowing directions of the two are the same; When the blades and the second fan have the same bending direction, and the rotation direction of the first fan is the same as the rotation direction of the second fan, the blowing direction of the two is the same.
  • the outdoor unit of the air conditioner in the above technical solution provided by this application may also have the following additional technical features:
  • the motor is a variable frequency axial air gap motor.
  • the motor is a variable frequency axial air gap motor, and the stator and rotor of the motor form an axial air gap, which is beneficial to reduce the radial size of the motor, which in turn is beneficial to reduce the size of the outdoor unit of the air conditioner, which is convenient for the motor to be in the casing
  • the assembly of the air conditioner is also easy to reduce the requirement for the assembly space of the outdoor unit of the air conditioner, which is beneficial to expand the use range of the outdoor unit of the air conditioner; and it ensures that the rotation speed and steering of the two rotors are adjustable, thereby adjusting the coordination of the first fan and the second fan Ways to meet the different functional requirements of the outdoor unit of the air conditioner.
  • variable frequency axial air gap motor includes a stator and two rotors;
  • the stator includes a stator core and two sets of mutually independent windings, and the axial ends of the stator core are provided with The stator teeth protruding to both sides of the axial direction, the two sets of the windings are respectively wound on the two sets of the stator teeth;
  • the two rotors are coaxially arranged on both sides of the stator in the axial direction, and An axial air gap is formed with the stator.
  • This solution uses the cooperation of a stator, two independent rotors and two independent output shafts to realize the dual power independent output of a motor, which can drive two fans to rotate independently at their respective speeds and rotations without interfering with each other. .
  • at least one stator is omitted, the axial size of the fan is reduced, the cost of the fan is reduced, and the cost of the outdoor unit of the air conditioner is reduced.
  • the size reduces the cost of the outdoor unit of the air conditioner.
  • the two fans can be rotated at any speed and any rotation, which is practical and functional.
  • Significantly enhance the diversification of the fan functionality thereby enhancing the diversification of the functions of the outdoor unit of the air conditioner, also eliminating the gear mechanism, and reducing the difficulty of product manufacturing and installation.
  • variable frequency axial air gap motor includes two stators and two rotors, the two stators correspond to the two rotors one-to-one; each of the stators includes a stator core and Windings, one axial end of each stator core is provided with stator teeth protruding along the axial direction, the corresponding windings are wound on the stator teeth, and each rotor is arranged on the corresponding An axial side of the stator forms an axial air gap with the corresponding stator.
  • This solution uses the cooperation of two stators, two rotors and two rotating shafts to realize the dual power independent output of one motor, which is equivalent to integrating the internal structures of two motors. Compared with two independent motors, it is also The number of mounting frames is reduced, the difficulty of assembly of the fan is reduced, and the assembly space of the fan is reduced, and each stator and each rotor can be reasonably designed according to the requirements to meet the functional requirements of the product.
  • the two rotors are arranged opposite to each other and placed on the axial inner side of the two stators.
  • the two rotors are arranged opposite to each other and placed on the axial inner side of the two stators, which has good workability and is convenient for assembly.
  • the two rotors can also be placed on the axial outside of the two stators, or one on the axial inside of the two stators and the other on the axial outside of the two stators.
  • a hollow channel is provided in the radial middle of the stator core, and at least a part of the first output shaft and at least a part of the second output shaft are both placed in the hollow channel.
  • a hollow passage is provided in the radial middle of the stator core, which provides a favorable axial installation space for the installation of the first output shaft and the second output shaft, so that the two output shafts can be partially or fully accommodated in the hollow passage of the stator core Inside, thereby further shortening the axial size of the motor.
  • it can avoid the increase in axial space caused by the output shaft having to be supported by the end, and can effectively reduce the axial space of the motor.
  • the radius of action of the electromagnetic force of the axial air gap motor is moved outward, which means that the torque generated by the same electromagnetic force increases, and the electromagnetic force required by the axial air gap motor decreases under a fixed design torque. Therefore, the design size and space of the electromagnetic will be reduced, which is very beneficial to the realization of the miniaturization of the motor.
  • the stator core includes a stator yoke and a plurality of stator teeth arranged in a circumferential direction of the stator yoke, and the plurality of stator teeth and the stator yoke
  • the stator core is assembled to form the stator teeth, and a plurality of the stator teeth protrude along the axial direction of the stator yoke to form the stator teeth
  • the rotor includes a rotor disk and a permanent magnet provided on the rotor disk .
  • the stator core includes a stator yoke and a plurality of stator teeth.
  • the stator yoke and the stator yoke are assembled to form a stator core.
  • the stator yoke and the stator teeth are connected by a detachable connection, which makes the winding It is not limited by the shape of the stator core, and each stator tooth can be connected to the stator yoke after the winding is wound.
  • the winding method is flexible and the winding efficiency is improved.
  • the size of the winding slot can be adjusted, so that the number of windings can be set flexibly, and the power level of the stator core can be adjusted reasonably.
  • the stator teeth and the stator yoke can also be integrally formed.
  • the rotor includes a rotor disk and a permanent magnet.
  • the rotor disk is used as a permanent magnet installation carrier and realizes the coaxial connection between the rotor and the first output shaft or the second output shaft.
  • the permanent magnet is installed on the rotor disk to generate a magnetic field to interact with the stator.
  • the rotor is formed into a flat disc structure as a whole, which is beneficial to further reduce the axial size of the motor.
  • the outer part of the rotor disc body is a disc-shaped structure, which is relatively regular in structure, which is convenient for processing and shaping, and is also convenient for the arrangement of multiple permanent magnets;
  • the inner part of the disc body is a disc-shaped structure or a conical structure, which is convenient for the specific structure of the product.
  • Reasonably design the assembly structure of the rotor disc and the shaft assembly to provide a favorable space for the installation of other parts.
  • At least one of the first output shaft and the second output shaft is a hollow shaft, and the other passes through the hollow shaft and outputs from the motor shaft on the same side, and is suitable for Rotate relative to the hollow shaft.
  • One of the first output shaft and the second output shaft is a hollow shaft, and the other output shaft can extend through the hollow shaft, so that the first output shaft and the second output shaft protrude in the same direction, so that the motor’s Two fans can be connected to one end of the shaft at the same time.
  • the other output shaft it can be a solid shaft, which helps to improve the strength of the output shaft.
  • the other output shaft may also be a hollow shaft.
  • a heat exchanger is provided in the casing, and the heat exchanger is provided at the first air exchange port.
  • the heat exchanger in the casing to ensure that the outdoor unit of the air conditioner can exchange heat with the outside, and the heat exchanger is arranged at the first air exchange port, so when the airflow enters the outdoor unit of the air conditioner through the first air exchange port, in rainy weather , Rainwater may also enter the outdoor unit of the air conditioner through the first air exchange port, causing the heat exchanger or other structures of the outdoor unit of the air conditioner to become damp.
  • the first fan and the second fan can be controlled to send air to the first air exchange port, and the air flow will flow through the heat exchanger and be blown out from the first air exchange port, thereby realizing the self-drying of the outdoor unit of the air conditioner, which is beneficial to improve the outdoor air conditioner.
  • the reliability of the machine is arranged at the first air exchange port, so when the airflow enters the outdoor unit of the air conditioner through the first air exchange port, in rainy weather , Rainwater may also enter the outdoor unit of the air conditioner through the first air exchange port, causing the heat exchanger or other structures of the
  • the air conditioner outdoor unit further includes a controller, which is electrically connected to the fan, and is used to control the start and stop, rotation speed, and speed of the first fan and the second fan. Steering.
  • the outdoor unit of the air conditioner also includes a controller, which is electrically connected to the fan, which can control the start and stop, speed and direction of the first fan and the second fan, so that the fan can be used in the normal cooling and heating process of the air conditioning equipment, or can be used independently Used to enhance the functionality of the outdoor unit of the air conditioner.
  • the controller can be integrated in the control system of the air conditioning equipment, or can be set separately.
  • the controller is adapted to control the combination of the first fan and the second fan at a fixed speed to blow air to the second air exchange port.
  • the controller is adapted to control the first fan and the second fan to combine at a fixed speed to blow air to the first air exchange port.
  • one of the two air exchange ports is an air inlet and the other is an air outlet, which is generally determined by the positions of the first air exchange port and the second air exchange port.
  • the fan includes two fans, the combination of the two fans at different speeds can make the fan generate the same air volume.
  • the heat exchange effect of the outdoor unit of the air conditioner can be detected by changing the speed combination of the first fan and the second fan, and then a better combination of speed can be obtained so that the air volume of the fan can be compared with that of the two fans.
  • the combination of speeds forms a fixed matching method. In this way, in use, the first fan and the second fan are combined at a certain fixed speed to blow air to the air outlet, which can make the air conditioner outdoor unit have the best heat exchange effect and efficiency under the corresponding load, so that the air conditioner outdoor unit can achieve energy saving The purpose of efficiency enhancement.
  • the fixed load can be defined by the designer as a specific load value (that is, the air volume of the outdoor unit of the air conditioner), or it can be defined as a certain degree of low load, medium load or high load (that is, low air volume, medium air volume, or high air volume ), under these loads, the first fan and the second fan are combined at a fixed speed to blow air to the air outlet, so that the heat exchange effect and efficiency of the outdoor unit of the air conditioner are optimal.
  • the outdoor unit of the air conditioner will become humid due to the ingress of water, which will further affect or damage the internal structure of the motor and heat exchanger of the outdoor unit of the air conditioner.
  • the airflow is generally normal during the normal operation of the air conditioner in the cooling mode or heating mode. It enters the case through the air inlet, and flows out of the case through the air outlet. Therefore, the rainwater at the air inlet may be further sucked into the case and cause undesirable consequences, while the rainwater at the air outlet can be directly blown out to achieve drying. Therefore, controlling the first fan and the second fan to blow air to the air inlet can enable the air conditioner outdoor unit to have a self-drying function, and reduce the probability of failure of the air conditioner outdoor unit due to moisture.
  • the two fans may have different rotation speed combinations.
  • the self-drying effect of the outdoor unit of the air conditioner can be detected by changing the speed combination of the first fan and the second fan, and then a better combination of speed can be obtained to make the air volume or power of the fan and The speed of the two fans is combined to form a fixed matching method.
  • the controller controls the combination of the first fan and the second fan to send air to the air inlet at a certain fixed speed, so that the outdoor unit of the air conditioner has the best free air volume or power. Drying effect and efficiency.
  • the controller controls the first fan and the second fan to send air to the second air exchange port at a fixed speed combination, which can make the air conditioner outdoor
  • the machine has the best heat exchange effect and efficiency under certain fixed loads; the controller controls the first fan and the second fan to send air to the first air exchange port at a fixed speed combination, which can make the outdoor unit of the air conditioner have a certain fixed power Or the best self-drying effect and efficiency under air volume.
  • the controller controls the first fan and the second fan to send air to the first air exchange port at a fixed speed combination to enable the air conditioner
  • the outdoor unit has the best heat exchange effect and efficiency under certain fixed loads; the controller controls the first fan and the second fan to send air to the second air exchange port at a fixed speed combination, which can make the air conditioner outdoor unit have a certain fixed The best self-drying effect and efficiency under power or air volume.
  • the controller is adapted to control at least one of the first fan and the second fan to operate at a constant speed or a variable speed to form a constant impinging airflow or a changing impinging airflow.
  • the controller controls the operation of the fan to form a constant impulsive airflow or a varying impulsive airflow, which acts on the dust, oil, debris and other substances accumulated in the casing of the outdoor unit of the air conditioner or the heat exchanger or other parts to achieve dust and oil pollution.
  • Sundries and other substances are automatically peeled off from the outdoor unit of the air conditioner due to the impact of the airflow, so that the outdoor unit of the air conditioner has a self-cleaning function, thereby reducing the frequency of manual maintenance or manual cleaning, and improving the user experience.
  • the first fan and the second fan can be configured to have a constant rotation speed at the same time, so that the fan generates a constant impinging airflow, and the wind speed and blowing angle of the airflow are kept constant, so that the outdoor unit of the air conditioner has a fixed-point self-cleaning function.
  • One of the first fan and the second fan can also be configured with a constant rotation speed, and the other can be configured with a variable rotation speed, or both the first fan and the second fan can be configured with a variable rotation speed, so that the wind speed of the fan changes and the air supply angle is changed.
  • the impinging air flow that does not change or the air supply angle changes but the wind speed does not change or both the wind speed and the air supply angle change. This changed impinging air flow can act on different parts of the outdoor unit of the air conditioner like a scan, thereby making the outdoor unit of the air conditioner full Directional self-cleaning function.
  • the controller is adapted to control the first fan and the second fan to operate at a fixed speed or to operate at a variable speed within a speed range with upper and lower floating thresholds based on the fixed speed, so that all The operating frequency of the fan reaches the resonance frequency of the partial structure of the outdoor unit of the air conditioner.
  • the first fan and the second fan run at a fixed speed, so that the operating frequency of the fan reaches the operating frequency of part of the structure of the outdoor unit of the air conditioner (such as the casing, heat exchanger or other parts), and the part of the structure will resonate, resulting in relative
  • the strong mechanical vibration causes dust, oil, debris and other substances to be automatically peeled off the outdoor unit of the air conditioner due to the mechanical vibration, so that the outdoor unit of the air conditioner has a self-cleaning function.
  • the first fan and the second fan operate at variable speeds within this speed range, and the speed changes slowly. When the speed becomes the above fixed speed, you can make Part of the structure of the outdoor unit of the air conditioner resonates.
  • the part of the structure can stop strong vibration. This can prevent part of the structure of the outdoor unit of the air conditioner from resonating for a long time to cause structural damage or failure, thereby ensuring Based on the reliability of the outdoor unit of the air conditioner, the outdoor unit of the air conditioner has a self-cleaning function.
  • the controller is adapted to control one of the first fan and the second fan to start first, so that the other fan is adapted to start with the wind of the fan started first.
  • the controller can control the first fan and the second fan to start sequentially, so that the fan that starts later can start with the wind of the fan that starts first, thereby reducing the starting torque of one of the fans, which is beneficial to reduce the power requirements on the motor, and at the same time It is also convenient for the fan to start upwind.
  • the fan is located between the first air exchange port and the second air exchange port.
  • one of the two air exchange ports (such as the second air exchange port) is easily disturbed by the external environment, so it can be controlled to be close to the first air exchange port. If the fan starts first, the fan will provide a certain start-up assistance to the fan close to the second air exchange port after the fan is started. In this way, in the absence of external wind interference, the second fan close to the second air exchange port has a smaller starting torque; in the case of headwind, the fan close to the second air exchange port can still start normally, so Achieve headwind start.
  • the axis of the fan is in a vertical direction; alternatively, the axis of the fan is in a horizontal direction.
  • the axis of the fan extends in the vertical direction, the blowing direction of the first fan and the second fan is the vertical direction, and the installation surface required by the fan is a horizontal plane.
  • the fan of the outdoor unit of the air conditioner can maintain good rigidity without being affected by gravity under the condition of heavy weight, and reduce the wear of the fan, which is more suitable for the outdoor unit of the air conditioner with high power requirements.
  • the axis of the fan extends in the horizontal direction, and the air supply direction of the first fan and the second fan is the horizontal direction, and the installation surface required by the fan is a vertical surface, which is conducive to the installation of the outdoor unit of the air conditioner on the outside of the wall, and the gravity is taken into account
  • This scheme is more suitable for outdoor units of air conditioners with low power requirements.
  • the technical solution of the second aspect of the present application provides an air conditioner, including: the air conditioner outdoor unit according to any one of the technical solutions of the first aspect; and an air conditioner indoor unit connected to the air conditioner outdoor unit.
  • the air-conditioning equipment provided by the technical solution of the second aspect of the present application includes the air-conditioning outdoor unit described in any one of the technical solutions of the first aspect, and therefore has all the beneficial effects of any of the above-mentioned technical solutions, and will not be repeated here. .
  • Fig. 1 is a schematic structural diagram of an outdoor unit of an air conditioner according to an embodiment of the present application
  • Fig. 2 is a schematic structural diagram of an outdoor unit of an air conditioner according to an embodiment of the present application
  • Fig. 3 is a schematic diagram of the first state of the fan according to an embodiment of the present application.
  • Fig. 4 is a schematic diagram of the second state of the fan shown in Fig. 3;
  • Fig. 5 is a schematic diagram of the first state of the fan according to an embodiment of the present application.
  • Fig. 6 is a schematic diagram of the second state of the fan shown in Fig. 5;
  • Fig. 7 is a schematic structural diagram of a motor according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of the structure of the stator in FIG. 7;
  • Fig. 9 is a schematic structural diagram of a motor according to an embodiment of the present application.
  • FIG. 10 is a schematic diagram of the structure of the stator in FIG. 9;
  • Fig. 11 is a schematic structural diagram of a rotor according to an embodiment of the present application.
  • FIGS. 3 to 6 indicate the blowing direction of the fan
  • the curved arrows indicate the rotation direction of the fan.
  • an embodiment of the first aspect is introduced, specifically an outdoor unit of an air conditioner.
  • An outdoor unit of an air conditioner includes: a casing 1 and a fan 3, as shown in Figs. 1 and 2.
  • the casing 1 is provided with a first air exchange port 11 and a second air exchange port 12, as shown in FIGS. 1 and 2.
  • the fan 3 is arranged in the casing 1 and located between the first air exchange port 11 and the second air exchange port 12, as shown in FIGS. 1 and 2.
  • the fan 3 includes a motor, a first fan 32 and a second fan 33.
  • the motor includes two rotors 312 that rotate independently of each other, and a first output shaft 3131 and a second output shaft 3132 respectively connected to the two rotors 312, as shown in FIGS. 7 and 8.
  • the first output shaft 3131 and the second output shaft 3132 respectively protrude along the axis of the motor toward the same side of the motor axis.
  • the first output shaft 3131 and the second output shaft 3132 are fixed to the first fan 32 and the second fan 33, respectively.
  • the connection is used to drive the first fan 32 and the second fan 33 to rotate independently of each other.
  • the casing 1 is provided with a first air exchange port 11 and a second air exchange port 12.
  • the airflow can enter the casing 1 through the first exchange port, and from the second air
  • the exchange port 12 flows out; it can also enter the casing 1 through the second air exchange port 12 in the reverse direction, and flow out of the casing 1 through the first exchange port.
  • the fan 3 includes a first fan 32 and a second fan 33. The two fans work together to significantly increase the air volume of the fan 3, so that the air conditioner outdoor unit can increase the air volume in an environment with poor heat dissipation conditions such as closed periphery and internal blockage. That is, the air volume and wind power of the outdoor unit of the air conditioner can be significantly increased, thereby improving the heat exchange effect of the outdoor heat exchanger, which is beneficial to improving the energy efficiency of the air conditioner.
  • the motor since the motor includes two rotors 312 that rotate independently of each other and two output shafts, the two rotors 312 can rotate at the same speed, at different speeds, in the same direction or in different directions, so that the two fans can rotate at the same speed, different speeds, and the same speed.
  • the airflow generated by the two fans can be superimposed on each other to make the fan 3 move toward the first air exchange port 11 or the second air exchange port 12 or the casing 1 or the casing at a constant or varying wind speed or wind shape.
  • the other structures in 1 supply air that is, it can control the air volume and wind force, but also control the air supply direction and angle to meet the different needs of the outdoor unit of the air conditioner, and greatly improve the performance of the outdoor unit of the air conditioner.
  • the heat exchange effect of the outdoor heat exchanger can be improved; when the fan 3 sends air to the first air exchange port 11, the moisture in the casing 1 can be removed. , Rain, etc., so that the outdoor unit of the air conditioner has a self-drying function; when the fan 3 sends air to the casing 1 or other structures in the casing 1 (such as outdoor heat exchangers, inlet grilles, etc.), these parts can be used It is impacted by airflow and/or generated vibration, so that dust, debris, oil and other substances will peel off and play a self-cleaning effect.
  • only one of the two rotors 312 can be started according to the situation to reduce energy consumption; or they can be started sequentially to control the starting sequence of the first fan 32 and the second fan 33, so that the fan that starts later can use the wind power of the fan that starts first.
  • the start-up is therefore beneficial to ensure the normal start-up of the fan 3 under headwind conditions or other harsh environments.
  • this solution uses one fan 3 to drive two fans to rotate, and realizes the integration of the fan 3 in structure, so that the coaxiality of the first fan 32 and the second fan 33 is better guaranteed, which is beneficial to improve the output.
  • Air volume improve work efficiency; Compared with the scheme of using two motors to drive two fans separately, it reduces the number of installation procedures for the outdoor unit of the air conditioner, and reduces the number of mounting frames 5 used to install the motors, which simplifies on the one hand
  • the installation process of the outdoor unit of the air conditioner reduces the difficulty of assembly, saves time and labor costs. On the other hand, it saves the installation space of the mounting frame 5, reduces the installation space of the fan 3, and helps reduce the size of the outdoor unit of the air conditioner. , Is conducive to the miniaturization of the outdoor unit of the air conditioner.
  • the first output shaft 3131 and the second output shaft 3132 protrude toward the same side of the motor axis, so that one end of the motor can output two powers that do not interfere with each other.
  • the axial distance between the two fans can be further reduced, thereby further improving the efficiency of the fan; compared to using two motors to drive two fans, the axial space of one motor is saved, which is beneficial to the outdoor unit of the air conditioner.
  • the axial size is reduced. Since the two rotors 312 are independent of each other, and the first output shaft 3131 and the second output shaft 3132 are independent of each other, the motor can output two independent torques, which is equivalent to using one motor to realize the function of two independent motors. Therefore, it has the remarkable advantages of compact structure, strong practical function, convenient installation, small axial size and low manufacturing cost.
  • the blowing direction of the fan 33 has the following relationship: when the blades of the first fan 32 and the second fan 33 have opposite bending directions, and the rotation direction of the first fan 32 is opposite to the rotation direction of the second fan 33, the difference between the two The blowing direction is the same, as shown in FIGS.
  • a refrigeration system 4 (including but not limited to a compressor, an outdoor heat exchanger, etc.) is also provided in the casing 1 to ensure the normal operation of the outdoor unit of the air conditioner.
  • the motor is a variable frequency axial air gap motor 31.
  • the motor is a variable-frequency axial air gap motor 31, and the stator 311 and the rotor 312 of the motor form an axial air gap, which is beneficial to reduce the radial size of the motor, which in turn is beneficial to reduce the size of the outdoor unit of the air conditioner.
  • the assembly in the casing 1 is also convenient to reduce the requirement for the assembly space of the outdoor unit of the air conditioner, which is beneficial to expand the use range of the outdoor unit of the air conditioner; and it ensures that the rotation speed and steering of the two rotors 312 are adjustable, and the first fan 32 is adjusted.
  • the cooperation with the second fan 33 meets the different functional requirements of the outdoor unit of the air conditioner.
  • variable frequency axial air gap motor 31 includes a stator 311 and two rotors 312, as shown in FIG. 7.
  • the stator 311 includes a stator core 3111 and two sets of independent windings 3115. As shown in FIG. 8, both axial ends of the stator core 3111 are provided with stator teeth protruding toward both sides of the axial direction.
  • the two sets of windings 3115 are respectively It is wound on two sets of stator teeth.
  • Two rotors 312 are coaxially arranged on both sides of the stator 311 in the axial direction, as shown in FIG. 7, and form an axial air gap with the stator 311.
  • This solution uses the cooperation of a stator 311 with two mutually independent rotors 312 and two mutually independent output shafts to realize the dual power independent output of a motor, which can drive two fans to rotate independently at their respective speeds and directions. Do not interfere.
  • at least one stator 311 is omitted, which reduces the axial size of the fan 3, reduces the cost of the fan 3, and thus helps reduce the air conditioner.
  • the size of the outdoor unit reduces the cost of the outdoor unit of the air conditioner.
  • it realizes that two fans can rotate at any speed and any steering, which is a practical function. It has strong performance and significantly improves the diversification of the functions of the fan 3, thereby enhancing the diversification of the functions of the outdoor unit of the air conditioner, also eliminating the gear mechanism, and reducing the difficulty of manufacturing and installing the product.
  • a hollow channel 3112 is provided in the radial middle of the stator core 3111 (as shown in FIG. 8 and FIG. 10), and at least a part of the first output shaft 3131 and at least a part of the second output shaft 3132 are placed in the hollow channel 3112. Inside.
  • a hollow channel 3112 is provided in the radial middle of the stator core 3111, which provides a favorable axial installation space for the installation of the first output shaft 3131 and the second output shaft 3132, so that the two output shafts can be partially or fully accommodated in the stator iron In the hollow channel 3112 of the core 3111, the axial size of the motor is further shortened.
  • the motor may further include a shaft sleeve, which is arranged in the hollow channel 3112, and a part of the two output shafts is inserted into the shaft sleeve.
  • a shaft sleeve is set in the hollow channel 3112, and one end of the two output shafts is inserted into the shaft sleeve.
  • the shaft sleeve can play a good role in limiting the two output shafts, ensuring that the two output shafts and the stator 311 are separated from each other.
  • the two output shafts do not interfere with each other, and the probability of shaking, tilting, and shifting of the two output shafts is reduced, thereby improving the coaxiality of the two output shafts, which is beneficial to improve the reliability of the motor, and it is also beneficial to improve the two output shafts.
  • the assembly accuracy of each output shaft makes the installation more convenient.
  • the support bearing of the first output shaft 3131 and the support bearing of the second output shaft 3132 can be directly arranged in the hollow channel 3112, and the support bearings can be used to support the first output shaft 3131 and the second output shaft 3132, which can significantly improve The reliability of the shaft.
  • the stator core 3111 includes a stator yoke portion 3113 and a plurality of stator teeth portions 3114 arranged along the circumferential direction of the stator yoke portion 3113.
  • the plurality of stator teeth portions 3114 and the stator yoke portion 3113 are assembled to form the stator core 3111,
  • a plurality of stator teeth 3114 protrude along the axial direction of the stator yoke 3113 to form stator teeth.
  • the rotor 312 includes a rotor disk 3121 and a permanent magnet 3122 provided on the rotor disk 3121 (as shown in FIG. 11).
  • the stator core 3111 includes a stator yoke 3113 and a plurality of stator teeth 3114.
  • the stator teeth 3114 and the stator yoke 3113 are assembled to form the stator core 3111.
  • the stator yoke 3113 and the stator teeth 3114 are detachably connected
  • the winding 3115 is not limited by the shape of the stator core 3111 when the winding 3115 is wound.
  • Each stator tooth 3114 can be connected to the stator yoke 3113 after the winding 3115 is wound.
  • the winding method is flexible and improves the winding. 3115's winding efficiency.
  • stator teeth 3114 and the stator yoke 3113 can also be integrally formed.
  • the rotor 312 includes a rotor disk 3121 and permanent magnets 3122 (as shown in FIG. 11).
  • the rotor disk 3121 is used as the mounting carrier of the permanent magnet 3122, and realizes the coaxial connection between the rotor 312 and the first output shaft 3131 or the second output shaft 3132; the permanent magnet 3122 is installed on the rotor disk 3121 to generate a magnetic field to interact with the stator, and
  • the entire rotor is formed into a flat disc structure, which is beneficial to further reduce the axial size of the motor.
  • the outer part of the rotor disc 3121 has a disc-shaped structure, which is relatively regular, which is convenient for processing and forming, and also facilitates the arrangement of a plurality of permanent magnets 3122;
  • the inner part of the disc body is a disc-shaped structure or a conical structure, which is convenient to customize according to the product.
  • the specific structure is reasonable to design the assembly structure of the rotor disk 3121 and the rotating shaft assembly to provide a favorable space for the installation of other parts.
  • the permanent magnet 3122 has a circular or fan-shaped pie-shaped structure, and the number of permanent magnets 3122 is multiple.
  • the multiple permanent magnets 3122 are evenly distributed on the axial surface of the rotor disk 3121 facing the stator yoke 3113 in the circumferential direction to form an axial magnetic field. Pass; N poles and S poles of two adjacent permanent magnets 3122 are arranged alternately or in a Halbach array.
  • the permanent magnets 3122 have a circular or fan-shaped pie-shaped structure, which is convenient for arrangement and reduces the axial size of the motor.
  • a plurality of permanent magnets 3122 are evenly distributed on the surface of the rotor disk 3121 facing the stator yoke along the circumferential direction of the rotor disk 3121 Above, an axial magnetic flux is formed between the rotor 312 and the stator assembly.
  • the N poles and S poles of two adjacent permanent magnets 3122 can be arranged alternately, or arranged in a Halbach array, which can be specifically adjusted according to product requirements.
  • At least one of the first output shaft 3131 and the second output shaft 3132 is a hollow shaft, as shown in Figures 7 and 9, the other one passes through the hollow shaft and outputs from the same side of the motor shaft, and is suitable for relative hollow shaft Spin.
  • One of the first output shaft 3131 and the second output shaft 3132 is a hollow shaft, and the other output shaft can extend through the hollow shaft, so as to achieve the same convex extension of the first output shaft 3131 and the second output shaft 3132 , So that the axial end of the motor can be connected to two fans at the same time.
  • the other output shaft it can be a solid shaft, which helps to improve the strength of the output shaft.
  • the other output shaft may also be a hollow shaft.
  • a heat exchanger 2 is provided in the casing 1, and the heat exchanger 2 is provided at the first air exchange port 11.
  • a heat exchanger 2 is provided in the casing 1 to ensure that the outdoor unit of the air conditioner can exchange heat with the outside, and the heat exchanger 2 is arranged at the first air exchange port 11, and the airflow enters the outdoor unit of the air conditioner through the first air exchange port 11
  • rain water may also enter the outdoor unit of the air conditioner through the first air exchange port 11, causing the heat exchanger 2 or other structures of the outdoor unit of the air conditioner to become damp.
  • the first fan 32 and the second fan 33 can be controlled to send air to the first air exchange port 11, and the air flow will flow through the heat exchanger 2 and be blown out from the first air exchange port 11, thereby realizing the self-drying of the outdoor unit of the air conditioner. It is beneficial to improve the reliability of the outdoor unit of the air conditioner.
  • the axis of the fan 3 is in the vertical direction, as shown in FIG. 2.
  • the axis of the fan 3 extends in the vertical direction, the blowing direction of the first fan 32 and the second fan 33 is the vertical direction, and the installation surface required by the fan 3 is a horizontal plane. In this way, the fan of the outdoor unit of the air conditioner can maintain good rigidity without being affected by gravity under the condition of heavy weight, and reduce the wear of the fan 3, which is more suitable for the outdoor unit of the air conditioner with high power requirements.
  • variable frequency axial air gap motor 31 includes two stators 311 and two rotors 312, and the two stators 311 correspond to the two rotors 312 one to one, as shown in FIG. 9.
  • Each stator 311 includes a stator core 3111 and windings 3115. As shown in FIG. 10, one axial end of each stator core 3111 is provided with stator teeth protruding in the axial direction, and the stator teeth are wound with corresponding For the winding 3115, each rotor 312 is arranged on the axial side of the corresponding stator 311, and forms an axial air gap with the corresponding stator 311.
  • This solution uses the cooperation of two stators 311, two rotors 312 and two rotating shafts to realize the dual power independent output of one motor, which is equivalent to integrating the internal structures of two motors, compared to two independent motors. , It also reduces the number of mounting frames 5, reduces the assembly difficulty of the fan 3, reduces the assembly space of the fan 3, and each stator 311 and each rotor 312 can be reasonably designed according to requirements to meet the functional requirements of the product.
  • the two rotors 312 are arranged opposite to each other and placed on the axial inner side of the two stators 311, as shown in FIG. 9.
  • the two rotors 312 are arranged opposite to each other and placed on the axial inner side of the two stators 311, which has good workability and is convenient for assembly.
  • the two rotors 312 may also be placed on the axially outer side of the two stators 311, or one on the axially inner side of the two stators 311 and the other on the axially outer side of the two stators 311.
  • the difference from the first or second embodiment is that the axis of the fan 3 is in the horizontal direction, as shown in FIG. 1.
  • the axis of the fan 3 extends in the horizontal direction
  • the air supply direction of the first fan 32 and the second fan 33 is the horizontal direction
  • the installation surface required for the fan 3 is a vertical surface, which facilitates the installation of the outdoor unit of the air conditioner on the outside of the wall. Taking into account the influence of gravity, this scheme is more suitable for outdoor units of air conditioners with low power requirements.
  • the outdoor unit of the air conditioner further includes: a controller, which is electrically connected to the fan 3, and is used to control the first fan 32 and the second fan 32.
  • the outdoor unit of the air conditioner also includes a controller, which is electrically connected to the fan 3, and can control the start and stop, speed and direction of the first fan 32 and the second fan 33, so that the fan 3 can be used in the normal cooling and heating process of the air conditioning equipment , Can also be used alone to enhance the functionality of the outdoor unit of the air conditioner.
  • the controller can be integrated in the control system of the air conditioning equipment, or can be set separately.
  • the controller is adapted to control the combination of the first fan 32 and the second fan 33 at a fixed speed to blow air to the second air exchange port 12.
  • controller is adapted to control the combination of the first fan 32 and the second fan 33 at a fixed speed to blow air to the first air exchange port 11.
  • one of the two air exchange ports is the air inlet and the other is the air outlet, which is generally determined by the positions of the first air exchange port 11 and the second air exchange port 12 .
  • the fan 3 includes two fans, the combination of the two fans at different speeds can make the fan 3 generate the same air volume.
  • the air volume of the fan 3 is fixed, the heat exchange effect of the outdoor unit of the air conditioner can be detected by changing the speed combination of the first fan 32 and the second fan 33, and then a better combination of speeds can be obtained to make the air volume of the fan 3 and The speed of the two fans is combined to form a fixed matching method.
  • the first fan 32 and the second fan 33 are combined at a certain fixed speed to blow air to the air outlet, which can make the air conditioner outdoor unit have the best heat exchange effect and efficiency under the corresponding load, so that the air conditioner outdoor unit To achieve the purpose of energy saving and efficiency enhancement.
  • the fixed load can be defined by the designer as a specific load value (that is, the air volume of the outdoor unit of the air conditioner), or it can be defined as a certain degree of low load, medium load or high load (that is, low air volume, medium air volume, or high air volume ), under these loads, the first fan 32 and the second fan 33 are combined at a fixed speed to blow air to the air outlet, so as to optimize the heat exchange effect and efficiency of the outdoor unit of the air conditioner.
  • the outdoor unit of the air conditioner will become humid due to the ingress of water, which will further affect or damage the internal structure of the motor and heat exchanger 2 of the outdoor unit of the air conditioner.
  • the airflow Generally, it enters the casing 1 through the air inlet and flows out of the casing 1 through the air outlet. Therefore, the rainwater at the air inlet may be further sucked into the casing 1 and cause undesirable consequences, while the rainwater at the air outlet can be directly blown out to achieve drying.
  • controlling the first fan 32 and the second fan 33 to blow air to the air inlet can enable the outdoor unit of the air conditioner to have a self-drying function, and reduce the probability of failure of the outdoor unit of the air conditioner due to moisture.
  • the two fans may have different rotation speed combinations.
  • the self-drying effect of the outdoor unit of the air conditioner can be detected by changing the speed combination of the first fan 32 and the second fan 33, and then a better combination of speeds can be obtained to make the fan 3
  • the combination of air volume or power and the speed of the two fans forms a fixed matching method.
  • the controller controls the first fan 32 and the second fan 33 to combine at a certain fixed speed to blow air to the air inlet, so that the outdoor unit of the air conditioner can have the maximum air volume or power. Good self-drying effect and efficiency.
  • the controller controls the first fan 32 and the second fan 33 to send air to the second air exchange port 12 at a fixed speed combination.
  • Can make the air conditioner outdoor unit have the best heat exchange effect and efficiency under certain fixed loads; the controller controls the first fan 32 and the second fan 33 to send air to the first air exchange port 11 at a fixed speed combination, which can make The outdoor unit of the air conditioner has the best self-drying effect and efficiency under certain fixed power or air volume.
  • the controller controls the first fan 32 and the second fan 33 to send to the first air exchange port 11 at a fixed speed combination.
  • the wind can make the air conditioner outdoor unit have the best heat exchange effect and efficiency under certain fixed loads; the controller controls the first fan 32 and the second fan 33 to send air to the second air exchange port 12 at a fixed speed combination.
  • Make the air conditioner outdoor unit have the best self-drying effect and efficiency under certain fixed power or air volume.
  • controller is adapted to control at least one of the first fan 32 and the second fan 33 to operate at a constant rotation speed or a variable rotation speed to form a constant impinging airflow or a changing impinging airflow.
  • the controller controls the operation of the fan 3 to form a constant impulsive airflow or a varying impulsive airflow, which acts on the dust, oil, debris and other substances accumulated in the casing 1 or heat exchanger 2 of the outdoor unit of the air conditioner or other parts, which can be realized Dust, oil, debris and other substances are automatically peeled off from the outdoor unit of the air conditioner due to the impact of the airflow, so that the outdoor unit of the air conditioner has a self-cleaning function, thereby reducing the frequency of manual maintenance or manual cleaning, and improving the user experience.
  • the first fan 32 and the second fan 33 can be configured at a constant speed at the same time, so that the fan 3 generates a constant impinging airflow, that is, the wind speed and the blowing angle of the airflow are kept constant, so that the outdoor unit of the air conditioner has a fixed-point automatic Cleaning function.
  • One of the first fan 32 and the second fan 33 may also be configured to have a constant rotation speed and the other may be configured to have a variable rotation speed, or both the first fan 32 and the second fan 33 may be configured with a variable rotation speed, so that the fan 3 generates wind speed.
  • the impinging air flow that changes without changing the air supply angle or changing the air supply angle without changing the wind speed or both the wind speed and the air supply angle. This changed impinging air flow can act on different parts of the outdoor unit of the air conditioner like a scan, thereby making The outdoor unit of the air conditioner has a comprehensive self-cleaning function.
  • controller is adapted to control the first fan 32 and the second fan 33 to operate at a fixed speed or to operate at a variable speed within a speed range with upper and lower floating thresholds based on the fixed speed, so that the operating frequency of the fan 3 reaches the outdoor air conditioner.
  • the resonance frequency of a part of the machine is adapted to control the first fan 32 and the second fan 33 to operate at a fixed speed or to operate at a variable speed within a speed range with upper and lower floating thresholds based on the fixed speed, so that the operating frequency of the fan 3 reaches the outdoor air conditioner.
  • the resonance frequency of a part of the machine is adapted to control the first fan 32 and the second fan 33 to operate at a fixed speed or to operate at a variable speed within a speed range with upper and lower floating thresholds based on the fixed speed, so that the operating frequency of the fan 3 reaches the outdoor air conditioner.
  • the resonance frequency of a part of the machine is adapted to control the first fan 32 and the second fan 33 to operate at a fixed speed or to operate
  • the first fan 32 and the second fan 33 run at a fixed speed, so that the operating frequency of the fan 3 reaches the operating frequency of a part of the air conditioner outdoor unit (such as the casing 1, the heat exchanger 2 or other parts). Resonance occurs, generating relatively strong mechanical vibrations, and then dust, oil, debris and other substances will automatically peel off from the outdoor unit of the air conditioner due to the mechanical vibration, so that the outdoor unit of the air conditioner has a self-cleaning function. Or, taking the fixed speed as a reference and setting appropriate upper and lower floating thresholds, the first fan 32 and the second fan 33 operate at variable speeds within this speed range, and the speed changes slowly. When the speed becomes the above fixed speed, that is, Part of the structure of the outdoor unit of the air conditioner can be resonated.
  • the part of the structure can stop vibrating strongly. This can prevent part of the structure of the outdoor unit of the air conditioner from resonating for a long time and causing structural damage or failure.
  • the outdoor unit of the air conditioner has a self-cleaning function.
  • the specific size of the set threshold it can be set according to needs, for example, 1% to 10% of the above-mentioned fixed rotation speed, such as 2%, 5%, 8%, and so on.
  • controller is adapted to control one of the first fan 32 and the second fan 33 to start first, so that the other fan is adapted to start with the wind of the fan started first.
  • the controller can control the first fan 32 and the second fan 33 to start sequentially, so that the fan that starts later can be started by the wind of the fan that starts first, so that the starting torque of one of the fans can be reduced, which is beneficial to reducing the power requirements on the motor
  • the fan 3 is also convenient for the fan 3 to start upwind.
  • the fan 3 is located between the first air exchange port 11 and the second air exchange port 12.
  • one of the two air exchange ports (such as the second air exchange port 12) is easily disturbed by the external environment, and it can be controlled to be close to the first air exchange port.
  • the fan of one air exchange port 11 is started first, and then the fan will provide a certain start-up assistance to the fan close to the second air exchange port 12 after it is started.
  • the second fan 33 close to the second air exchange port 12 has a smaller starting torque; in the case of headwind, the fan close to the second air exchange port 12 can still be normal Start to achieve a headwind start.
  • the air conditioner provided by the embodiment of the second aspect of the present application includes: the air conditioner outdoor unit and the air conditioner indoor unit as in any one of the embodiments of the first aspect, which are connected to the air conditioner outdoor unit.
  • the air conditioner provided by the embodiment of the second aspect of the present application includes the air conditioner outdoor unit of any one of the embodiments of the first aspect, and therefore has all the beneficial effects of any of the above-mentioned embodiments, and will not be repeated here.
  • the outdoor unit of the air conditioner has also been proposed with better performance requirements and more functional requirements.
  • the installation space of the outdoor unit of the air conditioner has been continuously compressed.
  • the performance requirements of the outdoor unit of the air conditioner have not been reduced or even higher, so the design of a very small and high-performance outdoor unit of the air conditioner is very necessary.
  • the outdoor unit of the air conditioner and the air conditioner provided by this application can use a motor to drive the first fan and the second fan to rotate at the same speed, different speeds, same direction or different directions, so that the fans can rotate in the first direction with different wind speeds or wind shapes.
  • the air exchange port blows air or the second air exchange port blows air or blows air to a fixed point in the casing or in all directions.
  • the outdoor unit of the air conditioner has the functions of heat exchange, self-cleaning, self-drying, and headwind starting.
  • the outdoor unit of the air conditioner has the advantages of simple installation, small size, large air volume, high energy efficiency, and low manufacturing cost.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

本申请提供了一种空调室外机及空调设备，空调室外机包括：机壳，机壳设有第一空气交换口和第二空气交换口；风机，设于机壳内，并位于第一空气交换口与第二空气交换口之间，风机包括电机、第一风扇和第二风扇，电机包括两个相互独立旋转的转子以及分别与两个转子相连的第一输出轴和第二输出轴，且第一输出轴及第二输出轴分别沿电机的轴向朝电机的轴向同侧凸伸并分别与第一风扇及第二风扇固定连接，用于驱动第一风扇及第二风扇相互独立旋转。本申请利用一个电机来驱动第一风扇与第二风扇同速、异速、同向或异向旋转，使空调室外机具备热交换、自清洁、自干燥和逆风启动等功能，并具有安装简单、尺寸规格小、风量大、能效高、制造成本低等优点。

Description

空调室外机及空调设备
本申请要求于2019年09月27日提交中国国家知识产权局、申请号为“201910926397.X”、申请名称为“空调室外机及空调设备”、于2019年09月27日提交中国国家知识产权局、申请号为“201921629367.4”、申请名称为“空调室外机及空调设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及空调技术领域，具体而言，涉及一种空调室外机及包含该空调室外机的空调设备。
背景技术
市面上的空调室外机，通常为单级风扇，在使用一段时间后或在恶劣的环境中使用时，风量会大大衰减，从而降低了室外换热器的换热效果。
发明内容
为了解决上述技术问题至少之一，本申请的一个目的在于提供一种空调室外机。
本申请的另一个目的在于提供一种包括上述空调室外机的空调设备。
为了实现上述目的，本申请第一方面的技术方案提供了一种空调室外机，包括：机壳，所述机壳设有第一空气交换口和第二空气交换口；风机，设于所述机壳内，并位于所述第一空气交换口与所述第二空气交换口之间，所述风机包括电机、第一风扇和第二风扇，所述电机包括两个相互独立旋转的转子以及分别与两个所述转子相连的第一输出轴和第二输出轴，且所述第一输出轴及所述第二输出轴分别沿所述电机的轴向朝所述电机的轴向同侧凸伸，所述第一输 出轴及所述第二输出轴分别与所述第一风扇及所述第二风扇固定连接，用于驱动所述第一风扇及所述第二风扇相互独立旋转。
本申请第一方面的技术方案提供的空调室外机，其机壳设有第一空气交换口和第二空气交换口，气流可经第一交换口进入机壳，从第二空气交换口流出；也可反向经第二空气交换口进入机壳，经第一交换口流出机壳。其风机包括第一风扇和第二风扇，两个风扇协同工作，可以明显增加风机的风量，使得空调室外机在外围封闭、内部堵塞等散热条件不佳的环境下加大风量，即能够显著提高空调室外机的风量和风力，从而提高室外换热器的换热效果，有利于提高空调设备的能效。同时，由于电机包括两个相互独立旋转的转子以及两个输出轴，则两个转子能够同速、异速、同向或者异向旋转，使得两个风扇可以同速、异速、同向或异向旋转，则两个风扇产生的气流相互叠加后能够使风机以恒定或变化的风速或风形向第一空气交换口或第二空气交换口或机壳或机壳内的其他结构送风，即：既能控制风量和风力，还可以控制送风方向、送风角度，以满足空调室外机的不同需求，大大提高空调室外机的性能。比如：当风机向第二空气交换口送风时，可以提高室外换热器的换热效果；当风机向第一空气交换口送风时，可以将机壳内的湿气、雨水等吹出，使空调室外机具有自干燥功能；当风机向机壳或机壳内的其他结构(如室外换热器、进风格栅等)送风时，可以使这些部位受到气流冲击和/或产生振动，从而使灰尘、杂物、油污等物质剥落，起到自清洁作用。
此外，两个转子还能根据情况只启动一个，以减少能耗；或者先后启动，从而控制第一风扇与第二风扇的启动顺序，使后启动的风扇借助先启动的风扇的风力启动，因而有利于在逆风条件下或者其他恶劣环境中保证风机的正常启动。并且，本方案利用一个风机驱动两个风扇旋转，在结构上实现了风机的集成化，使得第一风扇和第二风扇的同轴度得到更好地保证，从而有利于提高出风量，提高工作效率；相较于利用两个电机分别驱动两个风扇的方案而言，减少了空调室外机的装机工序数量，并减少了用于安装电机的安装架的数量，一方面简化了空调室外机的装机流程，降低了装配难度，节省了时间和人工成本，另一方面节省了安装架的安装空间，减小了风机的安装空间，有利于降低空调室外机的尺寸规格，有利于空调室外机的小型化。
其中，第一输出轴和第二输出轴向电机的轴向同侧凸伸，使得电机的轴向一端可以输出两种互不干扰的动力，相较于向电机的轴向两侧凸伸，两个风扇之间的轴向间距可以进一步减小，从而进一步提高风机的效率；相较于采用两个电机驱动两个风扇，节省了一个电机的轴向空间，有利于空调室外机的轴向尺寸减小。由于两个转子相互独立，且第一输出轴和第二输出轴相互独立，因而电机可以输出两个相互独立的转矩，相当于利用一个电机实现了两个相互独立的电机的功能，故而具有结构紧凑、实用功能性强、安装方便、轴向尺寸小、制造成本低的显著优点。
可以理解的是，第一风扇的叶片弯曲方向、第二风扇的叶片弯曲方向、第一风扇的旋转方向、第二风扇的旋转方向、第一风扇的送风方向、第二风扇的送风方向具有如下关系：当第一风扇的叶片与第二风扇的叶片弯曲方向相反，且第一风扇的旋转方向与第二风扇的旋转方向相反时，二者的送风方向一致；当第一风扇的叶片与第二风扇的叶片弯曲方向相同，且第一风扇的旋转方向与第二风扇的旋转方向相同时，二者的送风方向一致。
另外，本申请提供的上述技术方案中的空调室外机还可以具有如下附加技术特征：
在上述技术方案中，所述电机为变频轴向气隙电机。
电机为变频轴向气隙电机，则电机的定子与转子形成轴向气隙，这有利于减小电机的径向尺寸，进而有利于减小空调室外机的尺寸，既便于电机在机壳内的装配，也便于减小空调室外机对装配空间的需求，有利于扩大空调室外机的使用范围；且保证了两个转子的转速、转向可调，进而调节第一风扇与第二风扇的配合方式，以满足空调室外机的不同功能需求。
在上述技术方案中，所述变频轴向气隙电机包括定子和两个所述转子；所述定子包括定子铁芯和两组相互独立的绕组，所述定子铁芯的轴向两端设有向其轴向两侧凸伸的定子齿，两组所述绕组分别绕设在两组所述定子齿上；两个所述转子背向同轴设在所述定子的轴向两侧，并与所述定子形成轴向气隙。
本方案利用一个定子与两个相互独立的转子以及两个相互独立的输出轴的配合，实现了一个电机的双动力独立输出，可以驱动两个风扇以各自的转速和转向独立旋转，互不干扰。相较于两个电机背向轴伸分别连接两个风扇的方 案而言，至少省去了一个定子，缩小了风机的轴向尺寸，降低了风机的成本，进而有利于减小空调室外机的尺寸，降低空调室外机的成本；相较于一个单轴电机和齿轮机构相配合来实现两端轴伸的方案而言，实现了两个风扇以任意转速和任意转向旋转，实用功能性强，显著提升了风机功能性的多样化，从而提升了空调室外机功能的多样化，也省去了齿轮机构，降低了产品的制造安装难度。
在上述技术方案中，所述变频轴向气隙电机包括两个定子和两个所述转子，两个所述定子与两个所述转子一一对应；每个所述定子包括定子铁芯和绕组，每个所述定子铁芯的轴向一端设有沿其轴向凸伸的定子齿，所述定子齿上绕设有与其对应的所述绕组，每个所述转子设在与其对应的所述定子的轴向一侧，并与对应的所述定子形成轴向气隙。
本方案利用两个定子与两个转子以及两个转轴的配合，实现了一个电机的双动力独立输出，相当于将两个电机的内部结构进行了集成，相较于两个独立的电机，也减少了安装架的数量，降低了风机的装配难度，减小了风机的装配空间，且每个定子、每个转子可以根据需求合理设计，以满足产品的功能需求。
在上述技术方案中，两个所述转子相背设置且置于两个所述定子的轴向内侧。
两个转子相背设置且置于两个定子的轴向内侧，可加工性较好，便于装配。当然，两个转子也可以置于两个定子的轴向外侧，或者一个位于两个定子的轴向内侧，另一个位于两个定子的轴向外侧。
在上述任一技术方案中，所述定子铁芯的径向中部设有中空通道，所述第一输出轴的至少一部分及所述第二输出轴的至少一部分均置于所述中空通道内。
定子铁芯的径向中部设有中空通道，为第一输出轴及第二输出轴的安装提供了有利的轴向安装空间，使得两个输出轴能够部分或全部收容于定子铁芯的中空通道内，从而进一步缩短电机的轴向尺寸。与常用的径向电机相比，可以避免输出轴必须由端部支撑所带来的轴向空间增加，能够有效降低电机的轴向空间。此外，还使得该轴向气隙电机的电磁力作用半径外移，这意味着相同的电磁力所产生的力矩增加，则在固定的设计力矩下，轴向气隙电机所需要的电 磁力降低，从而电磁的设计尺寸和空间会减小，对实现电机的小型化非常有利。
在上述任一技术方案中，所述定子铁芯包括定子轭部和沿所述定子轭部的周向方向排布的多个定子齿部，多个所述定子齿部与所述定子轭部组装形成所述定子铁芯，且多个所述定子齿部沿所述定子轭部的轴向凸伸形成所述定子齿；所述转子包括转子盘和设在所述转子盘上的永磁体。
定子铁芯包括定子轭部和多个定子齿部，多个定子齿部与定子轭部组装形成定子铁芯，则定子轭部与定子齿部通过可拆卸连接的方式相连，这使得绕组绕设时不受定子铁芯形状的限制，每个定子齿部可以在绕组绕设完毕后再与定子轭部连接，绕线方式灵活，提高了绕组的绕设效率。此外，通过合理布置定子齿部的大小或者定子齿部之间的间距，可以调整绕线槽的大小，使得绕组的套数可以灵活设置，使得定子铁芯的功率等级得以合理调整。当然，定子齿部与定子轭部也可以一体成型。
转子包括转子盘和永磁体，转子盘作为永磁体的安装载体，并实现转子与第一输出轴或第二输出轴的同轴连接；永磁体安装在转子盘上，产生磁场与定子相互作用，并使转子整体形成扁平的盘式结构，有利于进一步缩小电机的轴向尺寸。其中，转子盘的盘体外部为圆盘状结构，结构较为规整，便于加工成型，也便于多个永磁体的排列；盘体内部为圆盘状结构或圆锥状结构，便于根据产品的具体结构合理设计转子盘与转轴组件的装配结构，为其他零件的安装提供有利的空间。
在上述任一技术方案中，所述第一输出轴及所述第二输出轴中的至少一个为空心轴，另一个穿过所述空心轴从所述电机轴向同侧输出，且适于相对所述空心轴旋转。
第一输出轴与第二输出轴中的一个为空心轴，则另一个输出轴可以穿过该空心轴伸出，从而实现第一输出轴与第二输出轴的同向凸伸，使得电机的轴向一端可以同时连接两个风扇。至于另一个输出轴，可以为实心轴，这有利于提高该输出轴的强度。当然，另一个输出轴也可以为空心轴。
在上述任一技术方案中，所述机壳内设有换热器，所述换热器设在所述第一空气交换口处。
机壳内设有换热器，以保证空调室外机能够与外界换热，且换热器设在第 一空气交换口处，则气流经第一空气交换口进入空调室外机时，在下雨天气，雨水也可能经第一空气交换口进入空调室外机，导致换热器或者空调室外机的其他结构受潮。此时，可以控制第一风扇和第二风扇向第一空气交换口送风，气流会流经换热器由第一空气交换口吹出，进而实现空调室外机的自干燥，有利于提高空调室外机的使用可靠性。
在上述任一技术方案中，所述空调室外机还包括：控制器，所述控制器与所述风机电连接，用于控制所述第一风扇及所述第二风扇的启停、转速及转向。
空调室外机还包括控制器，控制器与风机电连接，能够控制第一风扇及第二风扇的启停、转速及转向，使得风机既能够在空调设备正常制冷制热过程中使用，也可以单独使用，以提升空调室外机的功能性。比如：当空调室外机需要除尘时，单独开启风机，使需要除尘部位的灰尘、油污、杂物等剥落；当空调室外机需要干燥时，单独开启风机，向第一空气交换口吹风，进行自干燥。其中，控制器可以集成在空调设备的控制系统中，也可以单独设置。
在上述技术方案中，所述控制器适于控制所述第一风扇与所述第二风扇以固定的转速组合，向所述第二空气交换口送风。
在上述技术方案中，所述控制器适于控制所述第一风扇与所述第二风扇以固定的转速组合，向所述第一空气交换口送风。
在空调设备正常运行制冷模式或者制热模式的过程中，两个空气交换口中的一个为进风口，另一个为出风口，一般由第一空气交换口与第二空气交换口的位置决定。
由于风机包括两个风扇，两个风扇以不同的转速组合可以使风机产生相同的风量。当风机的风量固定时，可以通过改变第一风扇与第二风扇的转速组合方式，来检测空调室外机的换热效果，进而得出较优的转速组合，使风机的风量与两个风扇的转速组合形成固定的搭配方式。如此，使用中第一风扇与第二风扇以某些固定的转速组合，向出风口送风，能够使空调室外机具有对应负载下的最佳热交换效果和效率，从而使得空调室外机达到节能增效的目的。其中，固定负载可以由设计者定义为具体的载荷值(即空调室外机的风量)，也可以被定义为表示一定程度的低负载、中负载或者高负载(即低风量、中风量或者高风量)，在这些负载下第一风扇与第二风扇以固定的转速组合，向出风口送 风，使空调室外机的热交换效果和效率最佳。
而在风雨天气，空调室外机因进水会造成潮湿，进一步影响或破坏空调室外机的电机、换热器等内部结构，且在空调设备正常运行制冷模式或者制热模式的过程中，气流一般经进风口进入机壳，经出风口流出机壳，因而进风口处雨水有可能被进一步吸入机壳内引发不良后果，而出风口处的雨水等则可以被直接吹出实现干燥。因此，控制第一风扇与第二风扇向进风口送风，能够使空调室外机具备自干燥功能，降低空调室外机受潮发生故障的概率。进一步地，当风机的风量或者功率固定时，两个风扇可以具有不同的转速组合。当风机的风量或者功率固定时，可以通过改变第一风扇与第二风扇的转速组合方式，来检测空调室外机的自干燥效果，进而得出较优的转速组合，使风机的风量或者功率与两个风扇的转速组合形成固定的搭配方式。如此，当空调室外机需要自干燥时，控制器控制第一风扇与第二风扇以某些固定的转速组合，向进风口送风，能够使空调室外机具有对应风量或功率下的最佳自干燥效果和效率。
因此，当第一空气交换口为进风口，第二空气交换口为出风口时，控制器控制第一风扇及第二风扇以固定的转速组合向第二空气交换口送风，能够使空调室外机具有某些固定负载下的最佳热交换效果和效率；控制器控制第一风扇及第二风扇以固定的转速组合向第一空气交换口送风，能够使空调室外机具有某些固定功率或风量下的最佳自干燥效果和效率。同理，当第一空气交换口为出风口，第二空气交换口为进风口时，控制器控制第一风扇及第二风扇以固定的转速组合向第一空气交换口送风，能够使空调室外机具有某些固定负载下的最佳热交换效果和效率；控制器控制第一风扇及第二风扇以固定的转速组合向第二空气交换口送风，能够使空调室外机具有某些固定功率或风量下的最佳自干燥效果和效率。
在上述技术方案中，所述控制器适于控制所述第一风扇与所述第二风扇中的至少一个以恒定转速或者变化转速运行，以形成恒定的冲击气流或变化的冲击气流。
控制器控制风机运转，形成恒定的冲击气流或变化的冲击气流，作用在空调室外机的机壳或者换热器里或者其他部位堆积的灰尘、油污、杂物等物质上，能够实现灰尘、油污、杂物等物质因气流冲击从空调室外机上自动剥落，从而 使空调室外机具备自清洁功能，从而减少人工检修或者人工清洁的频率，提高用户的使用体验。具体地，第一风扇与第二风扇可以同时配置为恒定的转速，从而使风机产生恒定的冲击气流，则气流的风速和送风角度均保持恒定，进而使空调室外机具备定点自清洁功能。第一风扇与第二风扇中的一个也可以配置为恒定的转速，另一个配置为变化的转速，或者第一风扇与第二风扇均配置变化的转速，从而使风机产生风速变化而送风角度不变或者送风角度变化而风速不变或者风速及送风角度均发生变化的冲击气流，这种变化的冲击气流能够像扫描一样作用在空调室外机的不同部位，进而使空调室外机具备全方位自清洁功能。
在上述技术方案中，所述控制器适于控制所述第一风扇与所述第二风扇以固定转速运行或以该固定转速为基准并设有上下浮动阈值的转速范围内变速运行，使所述风机的运行频率达到所述空调室外机的部分结构的共振频率。
第一风扇与第二风扇以固定转速运行，使得风机的运行频率达到空调室外机的部分结构(如机壳、换热器或者其他部位)的工作频率，则该部分结构会发生共振，产生相对强烈的机械振动，进而使灰尘、油污、杂物等物质因机械振动而自动从空调室外机上剥落，使空调室外机具备自清洁功能。或者，以该固定转速为基准，并设定适当的上下浮动阈值，第一风扇及第二风扇在该转速范围内变速运行，转速缓慢变化，当其速度变为上述固定转速时，即可使空调室外机的部分结构发生共振，当其偏离上述固定转速时，即可使该部分结构停止强烈振动，这样能够防止空调室外机的部分结构长时间持续发生共振引发结构损坏或者故障，从而在保证空调室外机的使用可靠性的基础上，使空调室外机具备了自清洁功能。
可以理解的是，空调室外机不同部位的共振频率不尽相同，因而上述固定转速随空调室外机结构的变化而变化。
在上述技术方案中，所述控制器适于控制所述第一风扇与所述第二风扇中的一个先启动，使另一个风扇适于借助先启动的风扇的风力启动。
控制器能够控制第一风扇与第二风扇先后启动，使得后启动的风扇能够借助先启动的风扇的风力启动，从而能够减小其中一个风扇的启动力矩，有利于降低对电机的动力要求，同时也便于风机实现逆风启动。比如：风机位于第一 空气交换口与第二空气交换口之间，通常两个空气交换口中的一个(比如第二空气交换口)容易受到外界环境的干扰，则可以控制靠近第一空气交换口的风扇先启动，则该风扇启动后会对靠近第二空气交换口的风扇提供一定的启动助力。如此，在没有外界风力干扰的情况下，靠近第二空气交换口的第二风扇具有较小的启动力矩；在遇到逆风的情况下，靠近第二空气交换口的风扇仍然能够正常启动，从而实现逆风启动。
在上述任一技术方案中，所述风机的轴线沿竖直方向；或者，所述风机的轴线沿水平方向。
风机的轴线沿竖直方向延伸，则第一风扇和第二风扇的送风方向为竖直方向，风机所需的安装面为水平面。这样能够使空调室外机的风扇在重量大的情况下，不受重力的影响而继续保持良好的刚度，并减小风机的磨损，比较适用于大功率要求的空调室外机。
风机的轴线沿水平方向延伸，则第一风扇和第二风扇的送风方向为水平方向，风机所需的安装面为竖直面，有利于空调室外机在墙面外侧安装，而考虑到重力的影响，该方案比较适用于小功率要求的空调室外机。
本申请第二方面的技术方案提供了一种空调设备，包括：如第一方面技术方案中任一项所述的空调室外机；和空调室内机，与所述空调室外机相连。
本申请第二方面的技术方案提供的空调设备，因包括第一方面技术方案中任一项所述的空调室外机，因而具有上述任一技术方案所具有的一切有益效果，在此不再赘述。
本申请的附加方面和优点将在下面的描述部分中变得明显，或通过本申请的实践了解到。
附图说明
本申请的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1是本申请一个实施例所述的空调室外机的结构示意图；
图2是本申请一个实施例所述的空调室外机的结构示意图；
图3是本申请一个实施例所述的风机第一状态的示意图；
图4是图3所示风机第二状态的示意图；
图5是本申请一个实施例所述的风机第一状态的示意图；
图6是图5所示风机第二状态的示意图；
图7是本申请一个实施例所述的电机的结构示意图；
图8是图7中定子的结构示意图；
图9是本申请一个实施例所述的电机的结构示意图；
图10是图9中定子的结构示意图；
图11是本申请一个实施例所述的转子的结构示意图。
其中，图1至图11中的附图标记与部件名称之间的对应关系为：
1-机壳；11-第一空气交换口；12-第二空气交换口；2-换热器；3-风机；31-变频轴向气隙电机；311-定子；3111-定子铁芯；3112-中空通道；3113-定子轭部；3114-定子齿部；3115-绕组；312-转子；3121-转子盘，3122-永磁体；3131-第一输出轴；3132-第二输出轴；32-第一风扇；33-第二风扇；4-制冷系统；5-安装架。
其中，图3至图6中的平行箭头示意风扇的送风方向，曲线箭头示意风扇的旋转方向。
具体实施方式
为了能够更清楚地理解本申请的上述目的、特征和优点，下面结合附图和具体实施方式对本申请进行进一步的详细描述。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本申请，但是，本申请还可以采用其他不同于在此描述的其他方式来实施，因此，本申请的保护范围并不受下面公开的具体实施例的限制。
下面参照图1至图11描述根据本申请一些实施例所述的空调室外机及空调设备。
首先介绍第一方面的实施例，具体为空调室外机。
实施例一
一种空调室外机，包括：机壳1和风机3，如图1和图2所示。
具体地，机壳1设有第一空气交换口11和第二空气交换口12，如图1和图2所示。
风机3设于机壳1内，并位于第一空气交换口11与第二空气交换口12之间，如图1和图2所示。
其中，风机3包括电机、第一风扇32和第二风扇33。电机包括两个相互独立旋转的转子312以及分别与两个转子312相连的第一输出轴3131和第二输出轴3132，如图7和图8所示。第一输出轴3131及第二输出轴3132分别沿电机的轴向朝电机的轴向同侧凸伸，第一输出轴3131及第二输出轴3132分别与第一风扇32及第二风扇33固定连接，用于驱动第一风扇32及第二风扇33相互独立旋转。
本申请第一方面的实施例提供的空调室外机，其机壳1设有第一空气交换口11和第二空气交换口12，气流可经第一交换口进入机壳1，从第二空气交换口12流出；也可反向经第二空气交换口12进入机壳1，经第一交换口流出机壳1。其风机3包括第一风扇32和第二风扇33，两个风扇协同工作，可以明显增加风机3的风量，使得空调室外机在外围封闭、内部堵塞等散热条件不佳的环境下加大风量，即能够显著提高空调室外机的风量和风力，从而提高室外换热器的换热效果，有利于提高空调设备的能效。
同时，由于电机包括两个相互独立旋转的转子312以及两个输出轴，则两个转子312能够同速、异速、同向或者异向旋转，使得两个风扇可以同速、异速、同向或异向旋转，则两个风扇产生的气流相互叠加后能够使风机3以恒定或变化的风速或风形向第一空气交换口11或第二空气交换口12或机壳1或机壳1内的其他结构送风，即：既能控制风量和风力，还可以控制送风方向、送风角度，以满足空调室外机的不同需求，大大提高空调室外机的性能。
比如：当风机3向第二空气交换口12送风时，可以提高室外换热器的换热效果；当风机3向第一空气交换口11送风时，可以将机壳1内的湿气、雨水等吹出，使空调室外机具有自干燥功能；当风机3向机壳1或机壳1内的其他结构(如室外换热器、进风格栅等)送风时，可以使这些部位受到气流冲击和/或产生振动，从而使灰尘、杂物、油污等物质剥落，起到自清洁作用。
此外，两个转子312还能根据情况只启动一个，以减少能耗；或者先后启 动，从而控制第一风扇32与第二风扇33的启动顺序，使后启动的风扇借助先启动的风扇的风力启动，因而有利于在逆风条件下或者其他恶劣环境中保证风机3的正常启动。
并且，本方案利用一个风机3驱动两个风扇旋转，在结构上实现了风机3的集成化，使得第一风扇32和第二风扇33的同轴度得到更好地保证，从而有利于提高出风量，提高工作效率；相较于利用两个电机分别驱动两个风扇的方案而言，减少了空调室外机的装机工序数量，并减少了用于安装电机的安装架5的数量，一方面简化了空调室外机的装机流程，降低了装配难度，节省了时间和人工成本，另一方面节省了安装架5的安装空间，减小了风机3的安装空间，有利于降低空调室外机的尺寸规格，有利于空调室外机的小型化。
其中，第一输出轴3131和第二输出轴3132向电机的轴向同侧凸伸，使得电机的轴向一端可以输出两种互不干扰的动力，相较于向电机的轴向两侧凸伸，两个风扇之间的轴向间距可以进一步减小，从而进一步提高风机的效率；相较于采用两个电机驱动两个风扇，节省了一个电机的轴向空间，有利于空调室外机的轴向尺寸减小。由于两个转子312相互独立，且第一输出轴3131和第二输出轴3132相互独立，因而电机可以输出两个相互独立的转矩，相当于利用一个电机实现了两个相互独立的电机的功能，故而具有结构紧凑、实用功能性强、安装方便、轴向尺寸小、制造成本低的显著优点。
可以理解的是，第一风扇32的叶片弯曲方向、第二风扇33的叶片弯曲方向、第一风扇32的旋转方向、第二风扇33的旋转方向、第一风扇32的送风方向、第二风扇33的送风方向具有如下关系：当第一风扇32的叶片与第二风扇33的叶片弯曲方向相反，且第一风扇32的旋转方向与第二风扇33的旋转方向相反时，二者的送风方向一致，如图3和图4所示；当第一风扇32的叶片与第二风扇33的叶片弯曲方向相同，且第一风扇32的旋转方向与第二风扇33的旋转方向相同时，二者的送风方向一致，如图5和图6所示。
当然，机壳1内还设有制冷系统4(包括但不局限于压缩机、室外换热器等结构)，以保证空调室外机的正常运行。
进一步地，电机为变频轴向气隙电机31。
电机为变频轴向气隙电机31，则电机的定子311与转子312形成轴向气 隙，这有利于减小电机的径向尺寸，进而有利于减小空调室外机的尺寸，既便于电机在机壳1内的装配，也便于减小空调室外机对装配空间的需求，有利于扩大空调室外机的使用范围；且保证了两个转子312的转速、转向可调，进而调节第一风扇32与第二风扇33的配合方式，以满足空调室外机的不同功能需求。
具体地，变频轴向气隙电机31包括定子311和两个转子312，如图7所示。定子311包括定子铁芯3111和两组相互独立的绕组3115，如图8所示，定子铁芯3111的轴向两端设有向其轴向两侧凸伸的定子齿，两组绕组3115分别绕设在两组定子齿上。两个转子312背向同轴设在定子311的轴向两侧，如图7所示，并与定子311形成轴向气隙。
本方案利用一个定子311与两个相互独立的转子312以及两个相互独立的输出轴的配合，实现了一个电机的双动力独立输出，可以驱动两个风扇以各自的转速和转向独立旋转，互不干扰。相较于两个电机背向轴伸分别连接两个风扇的方案而言，至少省去了一个定子311，缩小了风机3的轴向尺寸，降低了风机3的成本，进而有利于减小空调室外机的尺寸，降低空调室外机的成本；相较于一个单轴电机和齿轮机构相配合来实现两端轴伸的方案而言，实现了两个风扇以任意转速和任意转向旋转，实用功能性强，显著提升了风机3功能性的多样化，从而提升了空调室外机功能的多样化，也省去了齿轮机构，降低了产品的制造安装难度。
进一步地，定子铁芯3111的径向中部设有中空通道3112(如图8和图10所示)，第一输出轴3131的至少一部分及第二输出轴3132的至少一部分均置于中空通道3112内。
定子铁芯3111的径向中部设有中空通道3112，为第一输出轴3131及第二输出轴3132的安装提供了有利的轴向安装空间，使得两个输出轴能够部分或全部收容于定子铁芯3111的中空通道3112内，从而进一步缩短电机的轴向尺寸。
与常用的径向电机相比，可以避免输出轴必须由端部支撑所带来的轴向空间增加，能够有效降低电机的轴向空间。此外，还使得该轴向气隙电机3的电磁力作用半径外移，这意味着相同的电磁力所产生的力矩增加，则在固定的设 计力矩下，轴向气隙电机所需要的电磁力降低，从而电磁的设计尺寸和空间会减小，对实现电机的小型化非常有利。
进一步地，电机还可以包括：轴套，设于中空通道3112内，且两个输出轴的一部分插装于轴套内。
在中空通道3112内设置轴套，将两个输出轴的一端均插装于轴套内，轴套可以对两个输出轴起到良好的限位作用，保证了两个输出轴与定子311之间互不干扰，并降低了两个输出轴发生晃动、倾斜、移位等情况的概率，从而提高两个输出轴的同轴度，有利于提高电机的使用可靠性，同时也有利于提高两个输出轴的装配精度，安装更加方便。
或者，也可以直接将第一输出轴3131的支撑轴承及第二输出轴3132的支撑轴承设在中空通道3112内，利用支撑轴承来支撑第一输出轴3131及第二输出轴3132，可以显著提高转轴的使用可靠性。
进一步地，定子铁芯3111包括定子轭部3113和沿定子轭部3113的周向方向排布的多个定子齿部3114，多个定子齿部3114与定子轭部3113组装形成定子铁芯3111，且多个定子齿部3114沿定子轭部3113的轴向凸伸形成定子齿。转子312包括转子盘3121和设在转子盘3121上的永磁体3122(如图11所示)。
定子铁芯3111包括定子轭部3113和多个定子齿部3114，多个定子齿部3114与定子轭部3113组装形成定子铁芯3111，则定子轭部3113与定子齿部3114通过可拆卸连接的方式相连，这使得绕组3115绕设时不受定子铁芯3111形状的限制，每个定子齿部3114可以在绕组3115绕设完毕后再与定子轭部3113连接，绕线方式灵活，提高了绕组3115的绕设效率。此外，通过合理布置定子齿部3114的大小或者定子齿部3114之间的间距，可以调整绕线槽的大小，使得绕组3115的套数可以灵活设置，使得定子铁芯3111的功率等级得以合理调整。当然，定子齿部3114与定子轭部3113也可以一体成型。
转子312包括转子盘3121和永磁体3122(如图11所示)。转子盘3121作为永磁体3122的安装载体，并实现转子312与第一输出轴3131或第二输出轴3132的同轴连接；永磁体3122安装在转子盘3121上，产生磁场与定子相互作用，并使转子整体形成扁平的盘式结构，有利于进一步缩小电机的轴向尺 寸。
其中，转子盘3121的盘体外部为圆盘状结构，结构较为规整，便于加工成型，也便于多个永磁体3122的排列；盘体内部为圆盘状结构或圆锥状结构，便于根据产品的具体结构合理设计转子盘3121与转轴组件的装配结构，为其他零件的安装提供有利的空间。
具体地，永磁体3122为圆形或扇形的饼状结构，永磁体3122的数量为多个，多个永磁体3122周向均布于转子盘3121朝向定子轭部3113的轴向表面，形成轴向磁通；相邻的两个永磁体3122的N极和S极交替排列或呈海尔贝克阵列排列。
永磁体3122为圆形或扇形的饼状结构，便于排列，并减小电机的轴向尺寸、多个永磁体3122沿转子盘3121的周向方向均布在转子盘3121朝向定子轭部的表面上，使转子312与定子组件之间形成轴向磁通。其中，相邻两个永磁体3122的N极和S极可以交替排列，也可以呈海尔贝克阵列(Halbach)排列，具体可以根据产品需求进行调整。
其中，第一输出轴3131及第二输出轴3132中的至少一个为空心轴，如图7和图9所示，另一个穿过空心轴从电机轴向同侧输出，且适于相对空心轴旋转。
第一输出轴3131与第二输出轴3132中的一个为空心轴，则另一个输出轴可以穿过该空心轴伸出，从而实现第一输出轴3131与第二输出轴3132的同向凸伸，使得电机的轴向一端可以同时连接两个风扇。至于另一个输出轴，可以为实心轴，这有利于提高该输出轴的强度。当然，另一个输出轴也可以为空心轴。
进一步地，机壳1内设有换热器2，换热器2设在第一空气交换口11处。
机壳1内设有换热器2，以保证空调室外机能够与外界换热，且换热器2设在第一空气交换口11处，则气流经第一空气交换口11进入空调室外机时，在下雨天气，雨水也可能经第一空气交换口11进入空调室外机，导致换热器2或者空调室外机的其他结构受潮。此时，可以控制第一风扇32和第二风扇33向第一空气交换口11送风，气流会流经换热器2由第一空气交换口11吹出，进而实现空调室外机的自干燥，有利于提高空调室外机的使用可靠性。
具体地，风机3的轴线沿竖直方向，如图2所示。
风机3的轴线沿竖直方向延伸，则第一风扇32和第二风扇33的送风方向为竖直方向，风机3所需的安装面为水平面。这样能够使空调室外机的风扇在重量大的情况下，不受重力的影响而继续保持良好的刚度，并减小风机3的磨损，比较适用于大功率要求的空调室外机。
实施例二
与实施例一的区别在于：变频轴向气隙电机31包括两个定子311和两个转子312，两个定子311与两个转子312一一对应，如图9所示。每个定子311包括定子铁芯3111和绕组3115，如图10所示，每个定子铁芯3111的轴向一端设有沿其轴向凸伸的定子齿，定子齿上绕设有与其对应的绕组3115，每个转子312设在与其对应的定子311的轴向一侧，并与对应的定子311形成轴向气隙。
本方案利用两个定子311与两个转子312以及两个转轴的配合，实现了一个电机的双动力独立输出，相当于将两个电机的内部结构进行了集成，相较于两个独立的电机，也减少了安装架5的数量，降低了风机3的装配难度，减小了风机3的装配空间，且每个定子311、每个转子312可以根据需求合理设计，以满足产品的功能需求。
进一步地，两个转子312相背设置且置于两个定子311的轴向内侧，如图9所示。
两个转子312相背设置且置于两个定子311的轴向内侧，可加工性较好，便于装配。
当然，两个转子312也可以置于两个定子311的轴向外侧，或者一个位于两个定子311的轴向内侧，另一个位于两个定子311的轴向外侧。
实施例三
与实施例一或实施例二的区别在于：风机3的轴线沿水平方向，如图1所示。
风机3的轴线沿水平方向延伸，则第一风扇32和第二风扇33的送风方向为水平方向，风机3所需的安装面为竖直面，有利于空调室外机在墙面外侧安装，而考虑到重力的影响，该方案比较适用于小功率要求的空调室外机。
实施例四
与上述任一实施例的区别在于：在上述任一实施例的基础上，进一步地，空调室外机还包括：控制器，控制器与风机3电连接，用于控制第一风扇32及第二风扇33的启停、转速及转向。
空调室外机还包括控制器，控制器与风机3电连接，能够控制第一风扇32及第二风扇33的启停、转速及转向，使得风机3既能够在空调设备正常制冷制热过程中使用，也可以单独使用，以提升空调室外机的功能性。比如：当空调室外机需要除尘时，单独开启风机3，使需要除尘部位的灰尘、油污、杂物等剥落；当空调室外机需要干燥时，单独开启风机3，向第一空气交换口11吹风，进行自干燥。其中，控制器可以集成在空调设备的控制系统中，也可以单独设置。
其中，控制器适于控制第一风扇32与第二风扇33以固定的转速组合，向第二空气交换口12送风。
进一步地，控制器适于控制第一风扇32与第二风扇33以固定的转速组合，向第一空气交换口11送风。
在空调设备正常运行制冷模式或者制热模式的过程中，两个空气交换口中的一个为进风口，另一个为出风口，一般由第一空气交换口11与第二空气交换口12的位置决定。
由于风机3包括两个风扇，两个风扇以不同的转速组合可以使风机3产生相同的风量。当风机3的风量固定时，可以通过改变第一风扇32与第二风扇33的转速组合方式，来检测空调室外机的换热效果，进而得出较优的转速组合，使风机3的风量与两个风扇的转速组合形成固定的搭配方式。如此，使用中第一风扇32与第二风扇33以某些固定的转速组合，向出风口送风，能够使空调室外机具有对应负载下的最佳热交换效果和效率，从而使得空调室外机达到节能增效的目的。其中，固定负载可以由设计者定义为具体的载荷值(即空调室外机的风量)，也可以被定义为表示一定程度的低负载、中负载或者高负载(即低风量、中风量或者高风量)，在这些负载下第一风扇32与第二风扇33以固定的转速组合，向出风口送风，使空调室外机的热交换效果和效率最佳。
而在风雨天气，空调室外机因进水会造成潮湿，进一步影响或破坏空调室外机的电机、换热器2等内部结构，且在空调设备正常运行制冷模式或者制热模式的过程中，气流一般经进风口进入机壳1，经出风口流出机壳1，因而进风口处雨水有可能被进一步吸入机壳1内引发不良后果，而出风口处的雨水等则可以被直接吹出实现干燥。因此，控制第一风扇32与第二风扇33向进风口送风，能够使空调室外机具备自干燥功能，降低空调室外机受潮发生故障的概率。进一步地，当风机3的风量或者功率固定时，两个风扇可以具有不同的转速组合。当风机3的风量或者功率固定时，可以通过改变第一风扇32与第二风扇33的转速组合方式，来检测空调室外机的自干燥效果，进而得出较优的转速组合，使风机3的风量或者功率与两个风扇的转速组合形成固定的搭配方式。如此，当空调室外机需要自干燥时，控制器控制第一风扇32与第二风扇33以某些固定的转速组合，向进风口送风，能够使空调室外机具有对应风量或功率下的最佳自干燥效果和效率。
因此，当第一空气交换口11为进风口，第二空气交换口12为出风口时，控制器控制第一风扇32及第二风扇33以固定的转速组合向第二空气交换口12送风，能够使空调室外机具有某些固定负载下的最佳热交换效果和效率；控制器控制第一风扇32及第二风扇33以固定的转速组合向第一空气交换口11送风，能够使空调室外机具有某些固定功率或风量下的最佳自干燥效果和效率。同理，当第一空气交换口11为出风口，第二空气交换口12为进风口时，控制器控制第一风扇32及第二风扇33以固定的转速组合向第一空气交换口11送风，能够使空调室外机具有某些固定负载下的最佳热交换效果和效率；控制器控制第一风扇32及第二风扇33以固定的转速组合向第二空气交换口12送风，能够使空调室外机具有某些固定功率或风量下的最佳自干燥效果和效率。
进一步地，控制器适于控制第一风扇32与第二风扇33中的至少一个以恒定转速或者变化转速运行，以形成恒定的冲击气流或变化的冲击气流。
控制器控制风机3运转，形成恒定的冲击气流或者变化的冲击气流，作用在空调室外机的机壳1或者换热器2里或者其他部位堆积的灰尘、油污、杂物等物质上，能够实现灰尘、油污、杂物等物质因气流冲击从空调室外机上自动 剥落，从而使空调室外机具备自清洁功能，从而减少人工检修或者人工清洁的频率，提高用户的使用体验。具体地，第一风扇32与第二风扇33可以同时配置为恒定的转速，从而使风机3产生恒定的冲击气流，即气流的风速和送风角度均保持恒定，进而使空调室外机具备定点自清洁功能。第一风扇32与第二风扇33中的一个也可以配置为恒定的转速，另一个配置为变化的转速，或者第一风扇32与第二风扇33均配置变化的转速，从而使风机3产生风速变化而送风角度不变或者送风角度变化而风速不变或者风速及送风角度均发生变化的冲击气流，这种变化的冲击气流能够像扫描一样作用在空调室外机的不同部位，进而使空调室外机具备全方位自清洁功能。
进一步地，控制器适于控制第一风扇32与第二风扇33以固定转速运行或以该固定转速为基准并设有上下浮动阈值的转速范围内变速运行，使风机3的运行频率达到空调室外机的部分结构的共振频率。
第一风扇32与第二风扇33以固定转速运行，使得风机3的运行频率达到空调室外机的部分结构(如机壳1、换热器2或者其他部位)的工作频率，则该部分结构会发生共振，产生相对强烈的机械振动，进而使灰尘、油污、杂物等物质因机械振动而自动从空调室外机上剥落，使空调室外机具备自清洁功能。或者，以该固定转速为基准，并设定适当的上下浮动阈值，第一风扇32及第二风扇33在该转速范围内变速运行，转速缓慢变化，当其速度变为上述固定转速时，即可使空调室外机的部分结构发生共振，当其偏离上述固定转速时，即可使该部分结构停止强烈振动，这样能够防止空调室外机的部分结构长时间持续发生共振引发结构损坏或者故障，从而在保证空调室外机的使用可靠性的基础上，使空调室外机具备了自清洁功能。
至于设定阈值的具体大小，可以根据需要进行设置，比如为上述固定转速的1％至10％，如2％、5％、8％等。
可以理解的是，空调室外机不同部位的共振频率不尽相同，因而上述固定转速随空调室外机结构的变化而变化。
进一步地，控制器适于控制第一风扇32与第二风扇33中的一个先启动，使另一个风扇适于借助先启动的风扇的风力启动。
控制器能够控制第一风扇32与第二风扇33先后启动，使得后启动的风扇 能够借助先启动的风扇的风力启动，从而能够减小其中一个风扇的启动力矩，有利于降低对电机的动力要求，同时也便于风机3实现逆风启动。比如：风机3位于第一空气交换口11与第二空气交换口12之间，通常两个空气交换口中的一个(比如第二空气交换口12)容易受到外界环境的干扰，则可以控制靠近第一空气交换口11的风扇先启动，则该风扇启动后会对靠近第二空气交换口12的风扇提供一定的启动助力。如此，在没有外界风力干扰的情况下，靠近第二空气交换口12的第二风扇33具有较小的启动力矩；在遇到逆风的情况下，靠近第二空气交换口12的风扇仍然能够正常启动，从而实现逆风启动。
本申请第二方面的实施例提供的空调设备，包括：如第一方面实施例中任一项的空调室外机和空调室内机，与空调室外机相连。
本申请第二方面的实施例提供的空调设备，因包括第一方面实施例中任一项的空调室外机，因而具有上述任一实施例所具有的一切有益效果，在此不再赘述。
目前，随着生活质量需求的不断提高，空调室外机也被提出更佳的性能要求和更多的功能要求。如今为了争取人们更多的住房使用空间，空调室外机的安装空间被不断压缩。但是，空调室外机的性能要求并未降低甚至更高，所以一个极具小型化又具高性能的空调室外机的设计非常有必要。与此同时，人们在设计空调室外机的时候常常忽略了空调室外机在使用过程中由于长期与外界接触产生灰尘油污的堆积、风雨腐蚀或逆风干扰，从而降低风机的性能的问题，所以如何实现空调室外机的自清洁、自干燥、逆风启动具有非常重要的意义。
而本申请提供的空调室外机及空调设备，能够利用一个电机来驱动第一风扇与第二风扇同速、异速、同向或异向旋转，从而使风机以不同风速或风形向第一空气交换口送风或第二空气交换口送风或者向机壳内的定点部位或者全方位送风。通过配置第一风扇与第二风扇的旋转方向和转速，使空调室外机具备热交换、自清洁、自干燥和逆风启动等功能。同时，该空调室外机具有安装简单、尺寸规格小、风量大、能效高、制造成本低等优点。
在本申请中，术语“第一”、“第二”、“第三”仅用于描述的目的，而不能理解为指示或暗示相对重要性；术语“多个”则指两个或两个以上，除非另有明确 的限定。术语“安装”、“相连”、“连接”、“固定”等术语均应做广义理解，例如，“连接”可以是固定连接，也可以是可拆卸连接，或一体地连接；“相连”可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
本申请的描述中，需要理解的是，术语“上”、“下”、“左”、“右”、“前”、“后”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或单元必须具有特定的方向、以特定的方位构造和操作，因此，不能理解为对本申请的限制。
在本说明书的描述中，术语“一个实施例”、“一些实施例”、“具体实施例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或实例。而且，描述的具体特征、结构、材料或特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上所述仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (17)

  1. 一种空调室外机，其中，包括：
    机壳，所述机壳设有第一空气交换口和第二空气交换口；
    风机，设于所述机壳内，并位于所述第一空气交换口与所述第二空气交换口之间，所述风机包括电机、第一风扇和第二风扇，所述电机包括两个相互独立旋转的转子以及分别与两个所述转子相连的第一输出轴和第二输出轴，且所述第一输出轴及所述第二输出轴分别沿所述电机的轴向朝所述电机的轴向同侧凸伸，所述第一输出轴及所述第二输出轴分别与所述第一风扇及所述第二风扇固定连接，用于驱动所述第一风扇及所述第二风扇相互独立旋转。
  2. 根据权利要求1所述的空调室外机，其中，
    所述电机为变频轴向气隙电机。
  3. 根据权利要求2所述的空调室外机，其中，
    所述变频轴向气隙电机包括定子和两个所述转子；
    所述定子包括定子铁芯和两组相互独立的绕组，所述定子铁芯的轴向两端设有向其轴向两侧凸伸的定子齿，两组所述绕组分别绕设在两组所述定子齿上；
    两个所述转子背向同轴设在所述定子的轴向两侧，并与所述定子形成轴向气隙。
  4. 根据权利要求2所述的空调室外机，其中，
    所述变频轴向气隙电机包括两个定子和两个所述转子，两个所述定子与两个所述转子一一对应；
    每个所述定子包括定子铁芯和绕组，每个所述定子铁芯的轴向一端设有沿其轴向凸伸的定子齿，所述定子齿上绕设有与其对应的所述绕组，每个所述转子设在与其对应的所述定子的轴向一侧，并与对应的所述定子形成轴向气隙。
  5. 根据权利要求4所述的空调室外机，其中，
    两个所述转子相背设置且置于两个所述定子的轴向内侧。
  6. 根据权利要求3至5中任一项所述的空调室外机，其中，
    所述定子铁芯的径向中部设有中空通道，所述第一输出轴的至少一部分及所述第二输出轴的至少一部分均置于所述中空通道内。
  7. 根据权利要求3至5中任一项所述的空调室外机，其中，
    所述定子铁芯包括定子轭部和沿所述定子轭部的周向方向排布的多个定子齿部，多个所述定子齿部与所述定子轭部组装形成所述定子铁芯，且多个所述定子齿部沿所述定子轭部的轴向凸伸形成所述定子齿；
    所述转子包括转子盘和设在所述转子盘上的永磁体。
  8. 根据权利要求1至5中任一项所述的空调室外机，其中，
    所述第一输出轴及所述第二输出轴中的至少一个为空心轴，另一个穿过所述空心轴从所述电机轴向同侧输出，且适于相对所述空心轴旋转。
  9. 根据权利要求1至5中任一项所述的空调室外机，其中，所述机壳内设有换热器，所述换热器设在所述第一空气交换口处。
  10. 根据权利要求1至5中任一项所述的空调室外机，其中，还包括：
    控制器，所述控制器与所述风机电连接，用于控制所述第一风扇及所述第二风扇的启停、转速及转向。
  11. 根据权利要求10所述的空调室外机，其中，
    所述控制器适于控制所述第一风扇与所述第二风扇以固定的转速组合，向所述第二空气交换口送风。
  12. 根据权利要求10所述的空调室外机，其中，
    所述控制器适于控制所述第一风扇与所述第二风扇以固定的转速组合，向所述第一空气交换口送风。
  13. 根据权利要求10所述的空调室外机，其中，
    所述控制器适于控制所述第一风扇与所述第二风扇中的至少一个以恒定转速或者变化转速运行，以形成恒定的冲击气流或变化的冲击气流。
  14. 根据权利要求10所述的空调室外机，其中，
    所述控制器适于控制所述第一风扇与所述第二风扇以固定转速运行或以该固定转速为基准并设有上下浮动阈值的转速范围内变速运行，使所述风机的运行频率达到所述空调室外机的部分结构的共振频率。
  15. 根据权利要求10所述的空调室外机，其中，
    所述控制器适于控制所述第一风扇与所述第二风扇中的一个先启动，使另一个风扇适于借助先启动的风扇的风力启动。
  16. 根据权利要求1至5中任一项所述的空调室外机，其中，
    所述风机的轴线沿竖直方向；或者
    所述风机的轴线沿水平方向。
  17. 一种空调设备，其中，包括：
    如权利要求1至16中任一项所述的空调室外机；和
    空调室内机，与所述空调室外机相连。
PCT/CN2020/082114 2019-09-27 2020-03-30 空调室外机及空调设备 WO2021057001A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20869083.4A EP3940304A4 (en) 2019-09-27 2020-03-30 AIR CONDITIONER OUTDOOR UNIT AND AIR CONDITIONER
US17/519,021 US12007128B2 (en) 2019-09-27 2021-11-04 Outdoor unit for air conditioner, and air conditioner

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201921629367.4 2019-09-27
CN201910926397.XA CN112577125A (zh) 2019-09-27 2019-09-27 空调室外机及空调设备
CN201910926397.X 2019-09-27
CN201921629367.4U CN210568879U (zh) 2019-09-27 2019-09-27 空调室外机及空调设备

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/519,021 Continuation US12007128B2 (en) 2019-09-27 2021-11-04 Outdoor unit for air conditioner, and air conditioner

Publications (1)

Publication Number Publication Date
WO2021057001A1 true WO2021057001A1 (zh) 2021-04-01

Family

ID=75165534

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/082114 WO2021057001A1 (zh) 2019-09-27 2020-03-30 空调室外机及空调设备

Country Status (3)

Country Link
US (1) US12007128B2 (zh)
EP (1) EP3940304A4 (zh)
WO (1) WO2021057001A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114665680B (zh) * 2022-03-31 2024-05-31 高彦霜 内外转子互逆旋转的发电机发电系统
CN115682230B (zh) * 2022-11-11 2024-07-16 珠海格力电器股份有限公司 新风机组及空调系统
CN115833482B (zh) * 2023-02-11 2023-10-17 南通曼淇威电气有限公司 一种工业空调外机的单相异步电机分流散热器

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1983775A (zh) * 2005-12-15 2007-06-20 日产自动车株式会社 电机
CN101331362A (zh) * 2006-06-19 2008-12-24 松下电器产业株式会社 空调机的室外机
CN202757214U (zh) * 2012-05-24 2013-02-27 Tcl空调器(中山)有限公司 空调室外机风道系统及空调
CN105588230A (zh) * 2014-12-12 2016-05-18 海信（山东）空调有限公司 一种空调的室外机
CN109028348A (zh) * 2018-06-13 2018-12-18 青岛海信日立空调系统有限公司 双级风扇系统、空调器室外机及空调器
CN208364446U (zh) * 2018-07-03 2019-01-11 广东威灵电机制造有限公司 风扇
CN109245400A (zh) * 2018-09-28 2019-01-18 广东威灵电机制造有限公司 中间支架、固定支架、同轴双转子电机以及破壁料理机

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5117141A (en) * 1990-07-30 1992-05-26 The United States Of America As Represented By Department Of Energy Disc rotors with permanent magnets for brushless DC motor
JP2006353078A (ja) * 2005-05-17 2006-12-28 Nissan Motor Co Ltd アキシャルギャップ型回転電機
US20110312264A1 (en) * 2009-03-12 2011-12-22 Lg Electronic, Inc. Outdoor unit for air conditioner
KR20110085646A (ko) * 2010-01-21 2011-07-27 엘지전자 주식회사 송풍장치 및 이를 구비하는 실외기
US20120222843A1 (en) * 2011-03-02 2012-09-06 James Mitchell Air Conditioner Condenser Booster
US20190024668A1 (en) * 2013-10-08 2019-01-24 Regal Beloit America, Inc. Axial flux motor, fan assembly and associated method
US9908706B1 (en) * 2016-10-12 2018-03-06 Goodrich Corporation Electric motor power drive unit for an aircraft cargo hold floor system
CN110044008A (zh) * 2019-04-22 2019-07-23 广东美的制冷设备有限公司 空调室外机的控制方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1983775A (zh) * 2005-12-15 2007-06-20 日产自动车株式会社 电机
CN101331362A (zh) * 2006-06-19 2008-12-24 松下电器产业株式会社 空调机的室外机
CN202757214U (zh) * 2012-05-24 2013-02-27 Tcl空调器(中山)有限公司 空调室外机风道系统及空调
CN105588230A (zh) * 2014-12-12 2016-05-18 海信（山东）空调有限公司 一种空调的室外机
CN109028348A (zh) * 2018-06-13 2018-12-18 青岛海信日立空调系统有限公司 双级风扇系统、空调器室外机及空调器
CN208364446U (zh) * 2018-07-03 2019-01-11 广东威灵电机制造有限公司 风扇
CN109245400A (zh) * 2018-09-28 2019-01-18 广东威灵电机制造有限公司 中间支架、固定支架、同轴双转子电机以及破壁料理机

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3940304A4

Also Published As

Publication number Publication date
EP3940304A4 (en) 2022-06-22
US12007128B2 (en) 2024-06-11
EP3940304A1 (en) 2022-01-19
US20220057089A1 (en) 2022-02-24

Similar Documents

Publication Publication Date Title
WO2021057001A1 (zh) 空调室外机及空调设备
CN210568878U (zh) 空调室外机及空调设备
JP5487649B2 (ja) ファンモータおよびこのファンモータを備えた送風機
KR100981859B1 (ko) 분리형 공기조화기용 실외기
CN204408102U (zh) 永磁同步电机及包含有该永磁同步电机的螺杆压缩机
CN201246314Y (zh) 直联式高速离心式鼓风机
CN112577126A (zh) 空调室外机及空调设备
CN112577125A (zh) 空调室外机及空调设备
CN210568879U (zh) 空调室外机及空调设备
CN101382320A (zh) 改进的窗式空调机
CN212376941U (zh) 风扇组件
CN1900616B (zh) 送风装置
CN203163101U (zh) 一种窗式空调
CN102434474A (zh) 节能型风机
CN219177924U (zh) 一种风幕机
CN216478035U (zh) 一种便于安装的无刷增压风机外壳
CN221483769U (zh) 一种节能建筑的通风结构
CN221879755U (zh) 一种永磁同步电机工业大风扇
CN218096463U (zh) 一种风幕机系统
CN220101591U (zh) 一种新型静音风机总成
CN217785433U (zh) 一种电耗低制冷快噪音低的静音空调内机
CN220750258U (zh) 挂式空调
CN215719633U (zh) 一种风扇
CN212177527U (zh) 一种高效节能离心风机
CN221483730U (zh) 一种绿色建筑用隔板式空调系统

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20869083

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2020869083

Country of ref document: EP

Effective date: 20211014

NENP Non-entry into the national phase

Ref country code: DE