CN112283811A - Air conditioner outdoor unit, air conditioner and control method of air conditioner - Google Patents

Air conditioner outdoor unit, air conditioner and control method of air conditioner Download PDF

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Publication number
CN112283811A
CN112283811A CN202011095968.9A CN202011095968A CN112283811A CN 112283811 A CN112283811 A CN 112283811A CN 202011095968 A CN202011095968 A CN 202011095968A CN 112283811 A CN112283811 A CN 112283811A
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China
Prior art keywords
fan
air conditioner
rotating speed
gear
temperature
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Withdrawn
Application number
CN202011095968.9A
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Chinese (zh)
Inventor
洪伟东
罗建成
周国宇
李文杰
招伟
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Hisense Guangdong Air Conditioning Co Ltd
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Hisense Guangdong Air Conditioning Co Ltd
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Application filed by Hisense Guangdong Air Conditioning Co Ltd filed Critical Hisense Guangdong Air Conditioning Co Ltd
Priority to CN202011095968.9A priority Critical patent/CN112283811A/en
Publication of CN112283811A publication Critical patent/CN112283811A/en
Withdrawn legal-status Critical Current

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    • 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
    • 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
    • F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
    • 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
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/41—Defrosting; Preventing freezing
    • F24F11/43—Defrosting; Preventing freezing of indoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F24F2110/12—Temperature of the outside air
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Fluid Mechanics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses an air conditioner outdoor unit, an air conditioner and a control method of the air conditioner, wherein the air conditioner outdoor unit comprises: the main control board is provided with first to third zero line interfaces; the fan is provided with a wind shield wiring terminal and a capacitor wiring terminal, and the wind shield wiring terminal is connected with the main control board; the capacitor module is connected with the first to third zero line interfaces of the main control board and is connected with the fan through a capacitor wiring terminal; and the switch module is connected with the first to third zero line interfaces and used for controlling the connection and disconnection of the first to third zero line interfaces so as to adjust the capacitance of the capacitor module and adjust the rotating speed of the fan. The invention can conveniently adjust the rotating speed of the fan, enables the fan to have multi-gear rotating speed, is beneficial to the low-temperature refrigeration control of the air conditioner according to the multi-gear rotating speed, and has simple structure, low cost, strong universality and easy realization.

Description

Air conditioner outdoor unit, air conditioner and control method of air conditioner
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner outdoor unit, an air conditioner and a control method of the air conditioner.
Background
For a constant-speed air conditioner product, when the air conditioner operates at low outdoor environment temperature, if no special design exists, the temperature of an indoor evaporator can be very low, so that the evaporator is frozen, and in order to avoid freezing, the air conditioner can be forcibly shut down for protection during design, so that the air conditioner can not normally operate and refrigerate under the low-temperature condition.
In order to meet the requirement of normal refrigeration of the air conditioner under the low-temperature condition and avoid the condition that an evaporator is frozen, the common design idea of constant-speed air conditioner products is to control the rotating speed of an outdoor fan so as to improve the condensation temperature of the system, thereby improving the evaporation temperature of the system. The current common scheme for controlling the rotating speed of the outdoor fan mainly comprises the following two schemes:
1. the outdoor fan adopts a direct current motor, and the speed is regulated by utilizing the characteristics of the direct current motor. However, this solution uses a dc motor, which makes the required cost high.
2. The outdoor fan adopts an alternating current motor, a fan speed regulation electric control module is additionally arranged, and speed regulation is carried out in modes of chopping and the like. However, when the scheme is implemented, the refrigeration system and the structural system need to be matched for certain adjustment, so that the practical design and operation difficulty is high, the structure is complex, the universality is low, and the implementation is difficult; in addition, the cost is also increased by adding a fan speed regulation electric control module.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art.
Therefore, an object of the present invention is to provide an outdoor unit of an air conditioner, which can conveniently adjust the rotation speed of a fan, so that the fan has multiple rotation speeds, which is beneficial to control the low-temperature refrigeration of the air conditioner according to the multiple rotation speeds, and has the advantages of simple structure, low cost, strong versatility and easy implementation.
Therefore, the second purpose of the invention is to provide an air conditioner.
To this end, a third object of the present invention is to provide a control method of an air conditioner.
In order to achieve the above object, an embodiment of a first aspect of the present invention discloses an outdoor unit of an air conditioner, including: the main control board is provided with first to third zero line interfaces; the fan is provided with a wind shield wiring terminal and a capacitor wiring terminal, and the wind shield wiring terminal is connected with the main control board; the capacitor module is connected with the first to third zero line interfaces of the main control board and is connected with the fan through the capacitor wiring terminal; and the switch module is connected with the first to third zero line interfaces and used for controlling the connection and disconnection of the first to third zero line interfaces so as to adjust the capacitance of the capacitor module and further adjust the rotating speed of the fan.
According to the air conditioner outdoor unit provided by the embodiment of the invention, the capacitance of the capacitor module is adjusted by controlling the connection and disconnection of the first to third zero line interfaces, so that the rotating speed of the fan can be conveniently adjusted, the fan has multi-gear rotating speed, and the air conditioner low-temperature refrigeration control is favorably carried out according to the multi-gear rotating speed, therefore, the electric control scheme is finely adjusted on the basis of not changing the current air conditioner refrigeration system and structural system, so that the normal refrigeration function of the air conditioner under the low-temperature environment can be realized.
In addition, the outdoor unit of the air conditioner according to the above embodiment of the present invention may further include the following additional technical features:
in some examples, the switch module includes: the first relay and the second relay are connected with the first zero line interface, the second zero line interface, the third zero line interface and the fourth zero line interface and are used for controlling the connection and disconnection of the first zero line interface, the second zero line interface and the fourth zero line interface according to the connection and disconnection of the first relay and the second relay.
In some examples, the capacitive module includes: the main capacitor and the auxiliary capacitor are arranged on the main control board, wherein one end of the main capacitor is connected with one end of the capacitor wiring terminal, and the other end of the main capacitor is respectively connected with a first zero line interface of the main control board and one end of the auxiliary capacitor; the other end of the auxiliary capacitor is connected with a second zero line interface of the main control board; and the other end of the capacitor wiring terminal is connected with a third zero line interface of the main control board.
In some examples, when the first relay is powered on and the second relay is powered off, the first neutral interface and the third neutral interface are conducted, the second neutral interface is disconnected, the main capacitor is powered on and operated, and the auxiliary capacitor is powered off and not operated, so that the fan outputs one of the first gear wind speed, the third gear wind speed and the fourth gear wind speed; when the first relay is powered off and the second relay is powered on, the first zero line interface is disconnected, the second zero line interface and the third zero line interface are conducted, and the main capacitor and the auxiliary capacitor are powered on to work so as to reduce the rotating speed of the fan and enable the fan to output one of fourth-gear wind speed and sixth-gear wind speed; and when the fan is powered off, the fan outputs the seventh gear rotating speed. .
In some examples, the first to seventh gear speeds are, in order of decreasing speed: the first gear rotating speed, the fourth gear rotating speed, the second gear rotating speed, the fifth gear rotating speed, the third gear rotating speed, the sixth gear rotating speed and the seventh gear rotating speed.
In some examples, the number of the fans is plural, and correspondingly, the number of the capacitor modules and the number of the switch modules are plural.
To achieve the above object, an embodiment of a second aspect of the present invention discloses an air conditioner including: an indoor unit; and the outdoor unit of the air conditioner according to the above embodiments of the present invention.
According to the air conditioner provided by the embodiment of the invention, the capacitance of the capacitor module is adjusted by controlling the connection and disconnection of the first to third zero line interfaces, so that the rotating speed of the fan can be conveniently adjusted, the fan has multi-gear rotating speed, and the low-temperature refrigeration control of the air conditioner is favorably carried out according to the multi-gear rotating speed, therefore, the electric control scheme is finely adjusted on the basis of not changing the current air-conditioning refrigeration system and structural system, so that the normal refrigeration function of the air conditioner under the low-temperature environment can be realized.
In order to achieve the above object, an embodiment of a third aspect of the present invention discloses a control method of an air conditioner, including the steps of: responding to a refrigerating operation control instruction, and controlling the air conditioner to enter a refrigerating operation mode; acquiring the current outdoor environment temperature and the condensation temperature of an outdoor heat exchanger of the air conditioner; and controlling the rotating speed of a fan of the air conditioner according to the outdoor environment temperature and the condensation temperature.
According to the control method of the air conditioner, the capacitance of the capacitor module is adjusted by controlling the connection and disconnection of the first to third zero line interfaces of the outdoor unit of the air conditioner, so that the rotating speed of the fan can be conveniently adjusted, the fan has multi-gear rotating speed, the low-temperature refrigeration control of the air conditioner can be favorably carried out according to the multi-gear rotating speed, the electric control scheme is finely adjusted on the basis of not changing the current refrigeration system and structural system of the air conditioner, the normal refrigeration function of the air conditioner under the low-temperature environment can be realized, and the control method is low in required cost, high in universality and easy to implement.
In addition, the control method of the air conditioner according to the above embodiment of the present invention may further include the following additional technical features:
in some examples, the controlling the rotation speed of the fan of the air conditioner according to the outdoor ambient temperature and the condensing temperature includes: a. if the outdoor environment temperature is higher than a first preset temperature, controlling the fan to operate at a first gear of rotating speed; b. if the outdoor environment temperature is greater than or equal to a second preset temperature and less than or equal to the first preset temperature, controlling the fan to operate at a second gear of rotating speed for a first preset time, and then skipping to the step d; c. and if the outdoor environment temperature is lower than the second preset temperature, controlling the fan to operate at a third gear of rotating speed for the first preset time, and then skipping to the step d.
In some examples, the controlling the rotation speed of the fan of the air conditioner according to the outdoor ambient temperature and the condensing temperature further includes: d. judging the magnitude relation between the condensation temperature and a third preset temperature and a fourth preset temperature; e, if the condensation temperature is higher than the third preset temperature, controlling the fan to operate at a first gear of rotating speed for a second preset time, and then skipping to the step d, wherein if the current rotating speed is the first gear of rotating speed, controlling the fan to operate at the first gear of rotating speed for the second preset time; f. if the condensation temperature is greater than or equal to the fourth preset temperature and less than the third preset temperature, controlling the fan to operate at the current rotating speed for a third preset time, and then skipping to the step d; g. and d, if the condensation temperature is lower than the fourth preset temperature, controlling the fan to operate at a rotating speed lower than the current rotating speed by one gear for a fourth preset time, and then skipping to the step d, wherein if the current rotating speed is a seventh gear rotating speed, controlling the fan to operate at the seventh gear rotating speed for a second preset time.
In some examples, further comprising: h. and d, if the outdoor environment temperature is lower than a fifth preset temperature, skipping to the step d, wherein the fifth preset temperature is lower than the first preset temperature.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of an outdoor unit of an air conditioner according to an embodiment of the present invention;
fig. 2 is a detailed structural view of an outdoor unit of an air conditioner according to an embodiment of the present invention;
fig. 3 is a flowchart of a control method of an air conditioner according to an embodiment of the present invention;
fig. 4 is a detailed flowchart of a control method of an air conditioner according to another embodiment of the present invention;
fig. 5 is a block diagram of a control apparatus of an air conditioner according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below, the embodiments described with reference to the drawings being illustrative, and the embodiments of the present invention will be described in detail below.
An outdoor unit of an air conditioner, and a control method of an air conditioner according to embodiments of the present invention are described below with reference to fig. 1 to 5.
Fig. 1 is a schematic structural view of an outdoor unit of an air conditioner according to an embodiment of the present invention. As shown in fig. 1, the outdoor unit 100 of the air conditioner includes: the main control panel 110, the fan 120, the capacitor module 130 and the switch module 140.
The main control board 110 has first to third neutral interfaces. Specifically, as shown in fig. 2, the first to third neutral interfaces correspond to interfaces N1, N2 and N on the main control board 110 in fig. 2, respectively.
The fan 120 has a windshield connection terminal and a capacitor connection terminal, and the windshield connection terminal is connected to the main control board 110. Specifically, as shown in fig. 2, the capacitance terminal corresponds to, for example, port C of the fan 120 in fig. 2, and the windshield terminal includes, for example, port N, L, M, H of the fan 120 in fig. 2.
The capacitor module 130 is connected to the first to third neutral line interfaces of the main control board 110, and is connected to the fan 120 through a capacitor terminal.
The switch module 140 is connected to the first to third neutral interfaces, and is configured to control on/off of the first to third neutral interfaces, so as to adjust the capacitance of the capacitor module 130, and thus adjust the rotation speed of the fan 120.
Therefore, the air conditioner outdoor unit can conveniently adjust the rotating speed of the fan 120, so that the fan 120 has multiple rotating speeds, the air conditioner low-temperature refrigeration control can be favorably carried out according to the multiple rotating speeds, and the air conditioner outdoor unit is simple in structure, low in cost, high in universality and easy to realize.
In one embodiment of the present invention, as shown in fig. 2, the switch module 140 includes, for example: a first relay 1.1 and a second relay 1.2. The first relay 1.1 and the second relay 1.2 are connected with the first to third zero line interfaces and used for controlling the connection and disconnection of the first to third zero line interfaces according to the connection and disconnection of the first relay and the second relay.
In one embodiment of the present invention, as shown in fig. 2, the capacitance module 130 includes, for example: a main capacitor 3 and an auxiliary capacitor 4. One end of the main capacitor 3 is connected with one end C of the capacitor connecting terminal, and the other end of the main capacitor 3 is respectively connected with the first zero line interface N1 of the main control board 110 and one end of the auxiliary capacitor 4; the other end of the auxiliary capacitor 4 is connected with a second neutral wire interface N2 of the main control board 110; the other end N of the capacitance terminal is connected to the third neutral line interface N of the main control board 110.
Specifically, when the first relay 1.1 is powered on and the second relay 1.2 is powered off, the first zero line interface N1 and the third zero line interface N are turned on, the second zero line interface N2 is turned off, so that the main capacitor 3 is powered on and works, and the auxiliary capacitor 4 is powered off and does not work, so that the fan 120 outputs one of the first gear wind speed to the third gear wind speed; when the first relay 1.1 is powered off and the second relay 1.2 is powered on, the first zero line interface N1 is disconnected, the second zero line interface N2 and the third zero line interface N are conducted, and the main capacitor 3 and the auxiliary capacitor 4 are both powered on to work so as to reduce the rotating speed of the fan 120 and enable the fan 120 to output one of the fourth-gear wind speed to the sixth-gear wind speed; when the fan 120 is powered off, the fan 120 outputs the seventh gear rotating speed.
In a specific embodiment, the first to seventh gear rotation speeds sequentially comprise, from large to small: the first gear rotating speed, the fourth gear rotating speed, the second gear rotating speed, the fifth gear rotating speed, the third gear rotating speed, the sixth gear rotating speed and the seventh gear rotating speed. The seventh gear rotational speed is, for example, 0. That is, when the fan 120 is powered off, the rotation speed of the fan 120 is 0.
In an embodiment, as shown in fig. 2, the outdoor unit of an air conditioner further includes: and the outdoor environment temperature sensor 5 and the condensation temperature sensor 6 are respectively and correspondingly used for acquiring the outdoor environment temperature and the condensation temperature of the outdoor heat exchanger of the air conditioner.
Specifically, as shown in fig. 2, that is, the main control board 110 is based on a conventional electronic control board, and 2 relays, that is, a first relay 1.1 and a second relay 1.2 are added, and the first relay 1.1 and the second relay 1.2 are used for controlling the on/off of the first to third neutral line interfaces NN1, N2 and N on the main control board 110, and further controlling the on/off of the auxiliary capacitor 4, so as to achieve the purpose of adjusting the rotation speed of the fan 120.
As shown in fig. 2, the windshield connection terminal of the fan 120, the outdoor environment temperature sensor 5 and the condensation temperature sensor 6 are respectively connected to the corresponding interfaces of the main control board 110; one end of a capacitor wiring terminal of the fan 120 is connected with the main capacitor 3, and the other end is connected with a third zero line interface N of the main control board 110; one end of the main capacitor 3 is connected with a capacitor wiring terminal of the fan 120, and the other end is connected with a first zero line interface N1 of the main control board 110; the auxiliary capacitor 4 is connected in series with the main capacitor 3 and then connected with the second neutral wire interface N2 of the main control board 110.
In actual work, when the first relay 1.1 is powered on and the second relay 1.2 is powered off, the first zero line interface N1 and the third zero line interface N on the main control board 110 are connected, and the second zero line interface N2 and the third zero line interface N are disconnected, so that only the main capacitor 3 works and the auxiliary capacitor 4 does not work, at this time, the 3-gear wind speed of the fan 120 is the original H1, M1 and L1, namely corresponding to the first gear wind speed to the third gear wind speed; when the first relay 1.1 is powered off and the second relay 1.2 is powered on, the N1 on the main control board 110 is disconnected from the N and the N2 is communicated with the N, so that the main capacitor 3 and the auxiliary capacitor 4 are connected in series to work together, the capacitance is reduced after the capacitors are connected in series, the rotating speed of the fan 120 is reduced, and the wind speed of the 3 gears is changed into H2, M2 and L2, namely corresponding to the fourth-sixth gear rotating speed; in addition, the fan 120 can also be directly controlled to be powered off, and the rotating speed of the fan 120 is 0, namely corresponding to the seventh gear rotating speed. Thus, the fan 120 has 7-speed adjustable wind speeds, which are H1, M1, L1, H2, M2, L2, and 0, respectively. In a specific embodiment, the size of the 7 th wind speed is defined as follows: h1> H2> M1> M2> L1> L2>0, and the relation of the actual rotating speed is taken as the standard in actual application.
In one embodiment of the present invention, the number of the fans 120 may be plural, and the capacitance module 130 and the switch module 140 are plural correspondingly. The number of the specific fans 120, the capacitance modules 130 and the switch modules 140 can be set according to actual requirements. For example, in the example shown in fig. 2, there are 2 fans 120, and correspondingly, there are 2 capacitor modules 130 and switch modules 140, where the connection and control manner of each fan 120 and the corresponding capacitor modules 130 and switch modules 140 are similar to those described in the above embodiments of the present invention, and are not repeated here. In a specific example, when the outdoor unit is designed as a single fan 120, the fan 120 and the capacitor module 130 and the switch module 140 corresponding thereto in the dashed line frame shown in fig. 2 may not be connected to a circuit, that is, only one fan 120 and the capacitor module 130 and the switch module 140 corresponding thereto are connected to implement the design of the single fan 120.
In summary, the embodiment of the invention performs the local adjustment of electric control on the basis of the existing common constant speed air conditioner product, and enables the air conditioner to normally run and refrigerate at low outdoor environment temperature through a new closed loop control scheme, so that the air conditioner has the function of low-temperature refrigeration. The scheme has the advantages of small change, universal parts, high realizability and low cost increase. In practical use, on one hand, the method can be widely applied to the design and development of constant speed air conditioner products; on the other hand, the air conditioner can be simply applied to the improvement of the existing constant-speed air conditioner product in the market, so that the air conditioner has a low-temperature refrigeration function.
According to the air conditioner outdoor unit provided by the embodiment of the invention, the capacitance of the capacitor module is adjusted by controlling the connection and disconnection of the first to third zero line interfaces, so that the rotating speed of the fan can be conveniently adjusted, the fan has multi-gear rotating speed, and the air conditioner low-temperature refrigeration control is favorably carried out according to the multi-gear rotating speed, therefore, the electric control scheme is finely adjusted on the basis of not changing the current air conditioner refrigeration system and structural system, so that the normal refrigeration function of the air conditioner under the low-temperature environment can be realized.
In addition, other configurations and functions of the outdoor unit of the air conditioner according to the above embodiments of the present invention are known to those skilled in the art, and are not described in detail for reducing redundancy.
A further embodiment of the present invention further provides an air conditioner, which includes an indoor unit and an outdoor unit of the air conditioner as described in any one of the above embodiments of the present invention.
Therefore, a specific implementation manner of the air conditioner is similar to that of the air conditioner outdoor unit described in any of the above embodiments of the present invention, please refer to the description of the air conditioner outdoor unit specifically, and details are not repeated here in order to reduce redundancy.
According to the air conditioner provided by the embodiment of the invention, the capacitance of the capacitor module is adjusted by controlling the connection and disconnection of the first to third zero line interfaces, so that the rotating speed of the fan can be conveniently adjusted, the fan has multi-gear rotating speed, and the low-temperature refrigeration control of the air conditioner is favorably carried out according to the multi-gear rotating speed, therefore, the electric control scheme is finely adjusted on the basis of not changing the current air-conditioning refrigeration system and structural system, so that the normal refrigeration function of the air conditioner under the low-temperature environment can be realized.
In addition, other configurations and functions of the air conditioner according to the above-mentioned embodiment of the present invention are known to those skilled in the art, and are not described in detail to reduce redundancy.
The embodiment of the invention also provides a control method of the air conditioner. The air conditioner is, for example, the air conditioner described in any of the above embodiments of the present invention, that is, the air conditioner includes the outdoor unit of the air conditioner described in any of the above embodiments of the present invention.
Fig. 3 is a flowchart of a control method of an air conditioner according to an embodiment of the present invention. As shown in fig. 3, the control method of the air conditioner includes the following steps:
step S1: and responding to the refrigerating operation control instruction, and controlling the air conditioner to enter a refrigerating operation mode.
In a specific example, the cooling operation control command is input by a user through an air conditioner remote controller or a mobile terminal or a control panel of an air conditioner, for example. That is, when a user needs the air conditioner to perform cooling operation, the cooling operation is input to control cooling, and in response to the cooling operation control command, the air conditioner enters a cooling operation mode to perform cooling.
Step S2: and acquiring the current outdoor environment temperature and the condensation temperature of an outdoor heat exchanger of the air conditioner.
Specifically, for example, the outdoor ambient temperature may be detected by an outdoor ambient temperature sensor, which is denoted as T4; the condensing temperature of the outdoor heat exchanger may be detected by a condensing temperature sensor, which is denoted as T3.
Step S3: the rotation speed of the fan of the air conditioner is controlled according to the outdoor environment temperature T4 and the condensation temperature T3.
As described above, the rotation speed of the fan may include first to seventh rotation speeds, that is, the fan of the air conditioner is controlled to operate at one of the first to seventh rotation speeds according to the outdoor ambient temperature T4 and the condensation temperature T3, so that the rotation speed of the fan can be conveniently adjusted to enable the fan to have multiple rotation speeds, which is beneficial to the low-temperature refrigeration control of the air conditioner according to the multiple rotation speeds.
In one embodiment of the present invention, as shown in fig. 4, the process of controlling the rotation speed of the fan of the air conditioner according to the outdoor ambient temperature T4 and the condensing temperature T3 includes the following steps:
a. and if the outdoor environment temperature T4 is greater than the first preset temperature Tb, controlling the fan to operate at a first gear speed H1.
b. And if the outdoor environment temperature T4 is greater than or equal to the second preset temperature Ta and less than or equal to the first preset temperature Tb, controlling the fan to operate at the second gear rotating speed M1 for a first preset time T1, and then skipping to the step d.
c. And if the outdoor environment temperature T4 is lower than the second preset temperature Ta, controlling the fan to operate at the third rotation speed L1 for a first preset time T1, and then skipping to the step d.
In other words, the magnitude relationship between T4 and Ta and Tb (Tb > Ta) is judged; when T4 is larger than Tb, the fan runs at H1 wind speed; when the Ta is more than or equal to T4 and less than or equal to Tb, the fan operates for preset time T1 minutes at the wind speed of M1, and then the step d is carried out; when T4 is less than Ta, the fan operates for a preset time T1 minutes at the wind speed of L1, and then the step d is carried out.
In an embodiment of the present invention, referring to fig. 4, the process of controlling the rotation speed of the fan of the air conditioner according to the outdoor environment temperature and the condensing temperature further includes the following steps:
d. the magnitude relation between the condensing temperature T3 and the third and fourth preset temperatures Td and Tc is judged.
e, if the condensation temperature T3 is higher than the third preset temperature Td, controlling the fan to operate at a rotating speed higher than the current rotating speed by one gear for a second preset time T2, and then jumping to the step d. For example, if the current rotation speed is the second gear rotation speed M1, the fan is controlled to operate at a first gear higher than the second gear rotation speed M1, that is, the fourth gear rotation speed H2; if the current rotation speed is the fifth gear rotation speed M2, the fan is controlled to operate at a rotation speed higher than the fifth gear rotation speed M2 by one gear, that is, the second gear rotation speed M1, which is not described herein. If the current rotating speed is the first gear rotating speed H1, namely the highest gear rotating speed, the fan is controlled to operate for a second preset time t2 at the first gear rotating speed H1.
f. And if the condensation temperature T3 is greater than or equal to the fourth preset temperature Tc and less than the third preset temperature Td, controlling the fan to operate for a third preset time T3 at the current rotating speed, and then jumping to the step d.
g. And if the condensation temperature T3 is lower than the fourth preset temperature Tc, controlling the fan to operate at a rotating speed lower than the current rotating speed by one gear for a fourth preset time T4, and then skipping to the step d. For example, if the current speed is the second gear speed M1, the fan is controlled to operate at a first gear speed lower than the second gear speed M1, that is, the fifth gear speed M2; if the current rotation speed is the fifth gear rotation speed M2, the fan is controlled to operate at a rotation speed lower than the fifth gear rotation speed M2 by one gear, that is, the third gear rotation speed L1, which is not described herein. If the current rotating speed is the seventh gear rotating speed, namely the lowest gear rotating speed, and the numerical value is 0, controlling the fan to operate at the seventh gear rotating speed for a fourth preset time t 4.
In other words, the magnitude relationship between T3 and Tc and Td (Td > Tc) is determined; when T3 is greater than Td, the fan operates at a wind speed which is higher than the current wind speed by one gear for a second preset time T2, and then the step d is carried out; when Tc is not less than T3 and not more than Td, the fan operates at the current wind speed for a third preset time T3, and then the step d is carried out; and when T3 is less than Tc, the fan operates at a wind speed lower than the current wind speed by one gear for a fourth preset time T4, and then the step d is carried out.
Further, since the outdoor ambient temperature T4 is in the process of changing constantly, in order to ensure good performance of the air conditioner in the high temperature environment, the fan needs to be operated at a high rotation speed H1. Then, as shown in fig. 4, while steps d to g are executed, the outdoor ambient temperature T4 is always detected, and when T4 > Tb, step a is entered, i.e. the fan is controlled to operate at the first gear speed H1.
Further, in an embodiment of the present invention, as shown in fig. 4, the method further includes:
h. and if the outdoor environment temperature T4 is less than a fifth preset temperature Tb-2, skipping to the step d, wherein the fifth preset temperature Tb-2 is less than the first preset temperature Tb.
Specifically, the outdoor environment temperature T4 is in the process of changing constantly, so after the step a is entered, the outdoor environment temperature T4 is detected, and when T4 is less than Tb-2, the step d is entered, namely the step of fan speed regulation circulation is entered.
In summary, the embodiment of the invention performs the local adjustment of electric control on the basis of the existing common constant speed air conditioner product, and enables the air conditioner to normally run and refrigerate at low outdoor environment temperature through a new closed loop control scheme, so that the air conditioner has the function of low-temperature refrigeration. The scheme has the advantages of small change, universal parts, high realizability and low cost increase. In practical use, on one hand, the method can be widely applied to the design and development of constant speed air conditioner products; on the other hand, the air conditioner can be simply applied to the improvement of the existing constant-speed air conditioner product in the market, so that the air conditioner has a low-temperature refrigeration function.
According to the control method of the air conditioner, the capacitance of the capacitor module is adjusted by controlling the connection and disconnection of the first to third zero line interfaces of the outdoor unit of the air conditioner, so that the rotating speed of the fan can be conveniently adjusted, the fan has multi-gear rotating speed, the low-temperature refrigeration control of the air conditioner can be favorably carried out according to the multi-gear rotating speed, the electric control scheme is finely adjusted on the basis of not changing the current refrigeration system and structural system of the air conditioner, the normal refrigeration function of the air conditioner under the low-temperature environment can be realized, and the control method is low in required cost, high in universality and easy to implement.
The invention further provides a control device of the air conditioner.
Fig. 5 is a schematic structural diagram of a control apparatus of an air conditioner according to an embodiment of the present invention. As shown in fig. 5, the control device 1000 of the air conditioner includes: a response module 1001, an acquisition module 1002, and a control module 1003.
The response module 1001 is configured to respond to a cooling operation control instruction and control the air conditioner to enter a cooling operation mode.
In a specific example, the cooling operation control command is input by a user through an air conditioner remote controller or a mobile terminal or a control panel of an air conditioner, for example. That is, when a user needs to perform cooling operation of the air conditioner, the cooling operation is input to control cooling, and the response module 1001 controls the air conditioner to enter a cooling operation mode to perform cooling in response to the cooling operation control instruction.
The obtaining module 1002 is configured to obtain a current outdoor ambient temperature and a condensing temperature of an outdoor heat exchanger of an air conditioner.
Specifically, the obtaining module 1002 includes, for example, an outdoor temperature sensor and a condensation temperature sensor. That is, the outdoor ambient temperature is detected by the outdoor ambient temperature sensor, and is denoted as T4; the condensing temperature of the outdoor heat exchanger is detected by a condensing temperature sensor, and is denoted as T3.
The control module 1003 is used for controlling the rotation speed of the fan of the air conditioner according to the outdoor environment temperature and the condensation temperature.
As mentioned above, the rotation speed of the fan may include first to seventh gear rotation speeds, that is, the control module 1003 may control the fan of the air conditioner to operate at one of the first to seventh gear rotation speeds according to the outdoor environment temperature T4 and the condensation temperature T3, so as to conveniently adjust the rotation speed of the fan, enable the fan to have multiple gear rotation speeds, and facilitate the low-temperature refrigeration control of the air conditioner according to the multiple gear rotation speeds.
In an embodiment of the present invention, referring to fig. 4, the process of controlling the rotation speed of the fan of the air conditioner by the control module 1003 according to the outdoor environment temperature T4 and the condensation temperature T3 includes the following steps:
a. and if the outdoor environment temperature T4 is greater than the first preset temperature Tb, controlling the fan to operate at a first gear speed H1.
b. And if the outdoor environment temperature T4 is greater than or equal to the second preset temperature Ta and less than or equal to the first preset temperature Tb, controlling the fan to operate at the second gear rotating speed M1 for a first preset time T1, and then skipping to the step d.
c. And if the outdoor environment temperature T4 is lower than the second preset temperature Ta, controlling the fan to operate at the third rotation speed L1 for a first preset time T1, and then skipping to the step d.
In other words, the magnitude relationship between T4 and Ta and Tb (Tb > Ta) is judged; when T4 is larger than Tb, the fan runs at H1 wind speed; when the Ta is more than or equal to T4 and less than or equal to Tb, the fan operates for preset time T1 minutes at the wind speed of M1, and then the step d is carried out; when T4 is less than Ta, the fan operates for a preset time T1 minutes at the wind speed of L1, and then the step d is carried out.
In an embodiment of the present invention, referring to fig. 4, the process of controlling the rotation speed of the fan of the air conditioner by the control module 1003 according to the outdoor environment temperature and the condensation temperature further includes the following steps:
d. the magnitude relation between the condensing temperature T3 and the third and fourth preset temperatures Td and Tc is judged.
e, if the condensation temperature T3 is higher than the third preset temperature Td, controlling the fan to operate at a rotating speed higher than the current rotating speed by one gear for a second preset time T2, and then jumping to the step d. For example, if the current rotation speed is the second gear rotation speed M1, the fan is controlled to operate at a first gear higher than the second gear rotation speed M1, that is, the fourth gear rotation speed H2; if the current rotation speed is the fifth gear rotation speed M2, the fan is controlled to operate at a rotation speed higher than the fifth gear rotation speed M2 by one gear, that is, the second gear rotation speed M1, which is not described herein. If the current rotating speed is the first gear rotating speed H1, namely the highest gear rotating speed, the fan is controlled to operate for a second preset time t2 at the first gear rotating speed H1.
f. And if the condensation temperature T3 is greater than or equal to the fourth preset temperature Tc and less than the third preset temperature Td, controlling the fan to operate for a third preset time T3 at the current rotating speed, and then jumping to the step d.
g. And if the condensation temperature T3 is lower than the fourth preset temperature Tc, controlling the fan to operate at a rotating speed lower than the current rotating speed by one gear for a fourth preset time T4, and then skipping to the step. For example, if the current speed is the second gear speed M1, the fan is controlled to operate at a first gear speed lower than the second gear speed M1, that is, the fifth gear speed M2; if the current rotation speed is the fifth gear rotation speed M2, the fan is controlled to operate at a rotation speed lower than the fifth gear rotation speed M2 by one gear, that is, the third gear rotation speed L1, which is not described herein. If the current rotating speed is the seventh gear rotating speed, namely the lowest gear rotating speed, and the numerical value is 0, controlling the fan to operate at the seventh gear rotating speed for a fourth preset time t 4.
In other words, the magnitude relationship between T3 and Tc and Td (Td > Tc) is determined; when T3 is greater than Td, the fan operates at a wind speed which is higher than the current wind speed by one gear for a second preset time T2, and then the step d is carried out; when Tc is not less than T3 and not more than Td, the fan operates at the current wind speed for a third preset time T3, and then the step d is carried out; and when T3 is less than Tc, the fan operates at a wind speed lower than the current wind speed by one gear for a fourth preset time T4, and then the step d is carried out.
Further, since the outdoor ambient temperature T4 is in the process of changing constantly, in order to ensure good performance of the air conditioner in the high temperature environment, the fan needs to be operated at a high rotation speed H1. Then, referring to fig. 4, while the control module 1003 executes steps d to g, the obtaining module 1002 detects the outdoor ambient temperature T4, and when T4 > Tb, the control module 1003 proceeds to step a, that is, controls the fan to operate at the first gear speed H1.
Further, in an embodiment of the present invention, as shown in fig. 4, the control module 1003 is further configured to perform the following steps:
h. and if the outdoor environment temperature T4 is less than a fifth preset temperature Tb-2, skipping to the step d, wherein the fifth preset temperature Tb-2 is less than the first preset temperature Tb.
Specifically, since the outdoor environment temperature T4 is in the process of changing constantly, after step a, the obtaining module 1002 detects the outdoor environment temperature T4, and when T4 is less than Tb-2, the control module 1003 enters step d, that is, enters the fan speed regulation cycle step.
In summary, the embodiment of the invention performs the local adjustment of electric control on the basis of the existing common constant speed air conditioner product, and enables the air conditioner to normally run and refrigerate at low outdoor environment temperature through a new closed loop control scheme, so that the air conditioner has the function of low-temperature refrigeration. The scheme has the advantages of small change, universal parts, high realizability and low cost increase. In practical use, on one hand, the method can be widely applied to the design and development of constant speed air conditioner products; on the other hand, the air conditioner can be simply applied to the improvement of the existing constant-speed air conditioner product in the market, so that the air conditioner has a low-temperature refrigeration function.
It should be noted that a specific implementation manner of the control device of the air conditioner is similar to that of the control method of the air conditioner described in any one of the above embodiments of the present invention, and please refer to the description of the method part specifically, and details are not described here again in order to reduce redundancy.
According to the control device of the air conditioner, the capacitance of the capacitor module is adjusted by controlling the connection and disconnection of the first to third zero line interfaces of the outdoor unit of the air conditioner, so that the rotating speed of the fan can be conveniently adjusted, the fan has multi-gear rotating speed, the low-temperature refrigeration control of the air conditioner can be favorably carried out according to the multi-gear rotating speed, the electric control scheme is finely adjusted on the basis of not changing the current refrigeration system and structural system of the air conditioner, the normal refrigeration function of the air conditioner under the low-temperature environment can be realized, and the control device is low in required cost, high in universality and easy to realize.
A further embodiment of the present invention also provides an air conditioner including the control device of the air conditioner described in any one of the above embodiments of the present invention.
Therefore, a specific implementation manner of the air conditioner is similar to that of the control device of the air conditioner described in any of the above embodiments of the present invention, and please refer to the description of the control device part specifically, and details are not described here again in order to reduce redundancy.
According to the air conditioner provided by the embodiment of the invention, the capacitance of the capacitor module is adjusted by controlling the connection and disconnection of the first to third zero line interfaces of the outdoor unit of the air conditioner, so that the rotating speed of the fan can be conveniently adjusted, the fan has multiple rotating speeds, the low-temperature refrigeration control of the air conditioner can be favorably carried out according to the multiple rotating speeds, and therefore, the electric control scheme is finely adjusted on the basis of not changing the current refrigeration system and structural system of the air conditioner, so that the normal refrigeration function of the air conditioner under the low-temperature environment can be realized, and the air conditioner is low in required cost, high in universality and easy to realize.
In addition, other configurations and functions of the air conditioner according to the above-mentioned embodiment of the present invention are known to those skilled in the art, and are not described in detail to reduce redundancy.
A further embodiment of the present invention also provides an air conditioner, which includes a processor, a memory, and a control program of the air conditioner stored on the memory and operable on the processor, and when executed by the processor, the control program of the air conditioner implements the control method of the air conditioner as described in any one of the above-mentioned embodiments of the present invention.
Therefore, a specific implementation manner of the air conditioner is similar to that of the control method of the air conditioner described in any of the above embodiments of the present invention, and please refer to the description of the method part specifically, and details are not described here again in order to reduce redundancy.
According to the air conditioner provided by the embodiment of the invention, the capacitance of the capacitor module is adjusted by controlling the connection and disconnection of the first to third zero line interfaces of the outdoor unit of the air conditioner, so that the rotating speed of the fan can be conveniently adjusted, the fan has multiple rotating speeds, the low-temperature refrigeration control of the air conditioner can be favorably carried out according to the multiple rotating speeds, and therefore, the electric control scheme is finely adjusted on the basis of not changing the current refrigeration system and structural system of the air conditioner, so that the normal refrigeration function of the air conditioner under the low-temperature environment can be realized, and the air conditioner is low in required cost, high in universality and easy to realize.
In addition, other configurations and functions of the air conditioner according to the above-mentioned embodiment of the present invention are known to those skilled in the art, and are not described in detail to reduce redundancy.
A further embodiment of the present invention also provides a computer-readable storage medium having stored thereon a control program of an air conditioner, which when executed by a processor, implements a control method of the air conditioner as described in any one of the above-described embodiments of the present invention.
According to the computer readable storage medium of the embodiment of the invention, the on-off of the first to third zero line interfaces of the air conditioner outdoor unit is controlled through the control program of the controller stored on the computer readable storage medium, so as to adjust the capacitance of the capacitor module, thereby conveniently adjusting the rotating speed of the fan, enabling the fan to have multi-gear rotating speed, and being beneficial to the control of low-temperature refrigeration of the air conditioner according to the multi-gear rotating speed, thereby finely adjusting the electric control scheme on the basis of not changing the current air conditioner refrigeration system and structural system, so as to realize the function that the air conditioner can still normally refrigerate in a low-temperature environment, and the computer readable storage medium has low cost, strong universality and easy.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
In the description of the present invention, "a plurality" means two or more.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (11)

1. An outdoor unit of an air conditioner, comprising:
the main control board is provided with first to third zero line interfaces;
the fan is provided with a wind shield wiring terminal and a capacitor wiring terminal, and the wind shield wiring terminal is connected with the main control board;
the capacitor module is connected with the first to third zero line interfaces of the main control board and is connected with the fan through the capacitor wiring terminal;
and the switch module is connected with the first to third zero line interfaces and used for controlling the connection and disconnection of the first to third zero line interfaces so as to adjust the capacitance of the capacitor module and further adjust the rotating speed of the fan.
2. The outdoor unit of claim 1, wherein the switching module comprises: the first relay and the second relay are connected with the first zero line interface, the second zero line interface, the third zero line interface and the fourth zero line interface and are used for controlling the connection and disconnection of the first zero line interface, the second zero line interface and the fourth zero line interface according to the connection and disconnection of the first relay and the second relay.
3. The outdoor unit of claim 2, wherein the capacitor module comprises: a main capacitor and an auxiliary capacitor, wherein the auxiliary capacitor is connected with the main capacitor,
one end of the main capacitor is connected with one end of the capacitor wiring terminal, and the other end of the main capacitor is respectively connected with a first zero line interface of the main control board and one end of the auxiliary capacitor;
the other end of the auxiliary capacitor is connected with a second zero line interface of the main control board;
and the other end of the capacitor wiring terminal is connected with a third zero line interface of the main control board.
4. The outdoor unit of claim 3, wherein,
when the first relay is powered on and the second relay is powered off, the first zero line interface and the third zero line interface are conducted, the second zero line interface is disconnected, the main capacitor is powered on to work, the auxiliary capacitor is powered off to work, and therefore the fan outputs one of the first gear wind speed, the third gear wind speed and the fourth gear wind speed;
when the first relay is powered off and the second relay is powered on, the first zero line interface is disconnected, the second zero line interface and the third zero line interface are conducted, and the main capacitor and the auxiliary capacitor are powered on to work so as to reduce the rotating speed of the fan and enable the fan to output one of fourth-gear wind speed and sixth-gear wind speed;
and when the fan is powered off, the fan outputs the seventh gear rotating speed.
5. The outdoor unit of claim 4, wherein the first to seventh rotation speeds sequentially have, in descending order of rotation speed: the first gear rotating speed, the fourth gear rotating speed, the second gear rotating speed, the fifth gear rotating speed, the third gear rotating speed, the sixth gear rotating speed and the seventh gear rotating speed.
6. The outdoor unit of any one of claims 1 to 5, wherein the number of the fans is plural, and the number of the capacitor modules and the number of the switch modules are plural correspondingly.
7. An air conditioner, comprising:
an indoor unit; and
the outdoor unit of any one of claims 1 to 6.
8. A control method of an air conditioner according to claim 7, comprising the steps of:
responding to a refrigerating operation control instruction, and controlling the air conditioner to enter a refrigerating operation mode;
acquiring the current outdoor environment temperature and the condensation temperature of an outdoor heat exchanger of the air conditioner;
and controlling the rotating speed of a fan of the air conditioner according to the outdoor environment temperature and the condensation temperature.
9. The method of claim 8, wherein the controlling the rotation speed of the fan of the air conditioner according to the outdoor environment temperature and the condensing temperature comprises:
a. if the outdoor environment temperature is higher than a first preset temperature, controlling the fan to operate at a first gear of rotating speed;
b. if the outdoor environment temperature is greater than or equal to a second preset temperature and less than or equal to the first preset temperature, controlling the fan to operate at a second gear of rotating speed for a first preset time, and then skipping to the step d;
c. and if the outdoor environment temperature is lower than the second preset temperature, controlling the fan to operate at a third gear of rotating speed for the first preset time, and then skipping to the step d.
10. The method of claim 9, wherein the controlling the rotation speed of the fan of the air conditioner according to the outdoor ambient temperature and the condensing temperature further comprises:
d. judging the magnitude relation between the condensation temperature and a third preset temperature and a fourth preset temperature;
e, if the condensation temperature is higher than the third preset temperature, controlling the fan to operate at a first gear of rotating speed for a second preset time, and then skipping to the step d, wherein if the current rotating speed is the first gear of rotating speed, controlling the fan to operate at the first gear of rotating speed for the second preset time;
f. if the condensation temperature is greater than or equal to the fourth preset temperature and less than the third preset temperature, controlling the fan to operate at the current rotating speed for a third preset time, and then skipping to the step d;
g. and d, if the condensation temperature is lower than the fourth preset temperature, controlling the fan to operate at a rotating speed lower than the current rotating speed by one gear for a fourth preset time, and then skipping to the step d, wherein if the current rotating speed is a seventh gear rotating speed, controlling the fan to operate at the seventh gear rotating speed for a second preset time.
11. The control method of an air conditioner according to claim 9 or 10, further comprising:
h. and d, if the outdoor environment temperature is lower than a fifth preset temperature, skipping to the step d, wherein the fifth preset temperature is lower than the first preset temperature.
CN202011095968.9A 2020-10-14 2020-10-14 Air conditioner outdoor unit, air conditioner and control method of air conditioner Withdrawn CN112283811A (en)

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JPH04159496A (en) * 1990-10-19 1992-06-02 Matsushita Electric Ind Co Ltd Control device for air conditioner
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04159496A (en) * 1990-10-19 1992-06-02 Matsushita Electric Ind Co Ltd Control device for air conditioner
CN102480263A (en) * 2010-11-30 2012-05-30 珠海格力电器股份有限公司 Air conditioner, alternating current motor and speed regulating device thereof
TW201332261A (en) * 2012-01-30 2013-08-01 Sunonwealth Electr Mach Ind Co Fan speed control method and apparatus for performing the method
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