WO2018176285A1 - 空调器及其的除霜控制方法 - Google Patents

空调器及其的除霜控制方法 Download PDF

Info

Publication number
WO2018176285A1
WO2018176285A1 PCT/CN2017/078655 CN2017078655W WO2018176285A1 WO 2018176285 A1 WO2018176285 A1 WO 2018176285A1 CN 2017078655 W CN2017078655 W CN 2017078655W WO 2018176285 A1 WO2018176285 A1 WO 2018176285A1
Authority
WO
WIPO (PCT)
Prior art keywords
compressor
conversion rate
air conditioner
normal
way valve
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2017/078655
Other languages
English (en)
French (fr)
Inventor
杨俊�
雷华翘
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
Original Assignee
Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
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
Application filed by Midea Group Co Ltd, GD Midea Air Conditioning Equipment Co Ltd filed Critical Midea Group Co Ltd
Priority to PCT/CN2017/078655 priority Critical patent/WO2018176285A1/zh
Priority to JP2019553519A priority patent/JP7071395B2/ja
Publication of WO2018176285A1 publication Critical patent/WO2018176285A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems

Definitions

  • the present invention relates to the field of air conditioning technology, and in particular, to a defrosting control method for an air conditioner, a nonvolatile computer storage medium, and an air conditioner.
  • R290 (propane) refrigerant also known as refrigerant, is a new type of environmentally friendly refrigerant, mainly used in central air conditioning, heat pump air conditioning, household air conditioning and other small refrigeration equipment.
  • the density of R290 is smaller than that of other refrigerants such as R22 (difluorochloromethane), so the charge of R290 in the same volume is small.
  • the air conditioner of the same capacity segment is much smaller than the air conditioner using other refrigerants, and in order to meet the cooling capacity and energy efficiency requirements, it is necessary to use a large displacement. Compressor and large-area heat exchanger, but this will cause the temperature at the capillary to be lower than the pour point temperature of the lubricating oil for a long time at the end of the defrosting when the capillary is used as a throttling device, so that the lubricating oil is flocculated. If the flow is serious, it will cause capillary blockage and cause the whole machine to malfunction.
  • a first object of the present invention is to provide a defrosting control method for an air conditioner, which controls a down-speed rate of a compressor when the air conditioner is switched from a defrosting mode to a heating mode, thereby Effectively preventing the temperature at the outlet of the throttling element from being too low causes the lubricating oil to generate a floc flow and block the throttling element.
  • a second object of the present invention is to provide a non-volatile computer storage medium.
  • a third object of the present invention is to provide an air conditioner.
  • a first aspect of the present invention provides a defrosting control method for an air conditioner, the air conditioner including a compressor, a four-way valve, an outdoor heat exchanger, an indoor heat exchanger, and a throttling element.
  • the exhaust port of the compressor is connected to the first end of the four-way valve
  • the second end of the four-way valve is connected to one end of the outdoor heat exchanger
  • the outdoor heat exchanger is One end is connected to one end of the indoor heat exchanger
  • the other end of the indoor heat exchanger is connected to one end of the throttling element
  • the other end of the throttling element is connected to the third end of the four-way valve
  • the fourth end of the four-way valve is connected to the air return port of the compressor, and the method includes the following steps: the air conditioner controls the compressor to stop when receiving the defrosting end signal during the defrosting process And controlling the four-way valve to reverse after delaying for a first preset time; controlling the compressor to be turned on after the four-way valve is completed; obtaining a normal up-conversion rate of the compressor, And acquiring the current up-conversion of the compressor according to the normal up-conversion rate Rate, and according to the current rate upconversion The compressor performs up-conversion control, wherein
  • the air conditioner controls the compressor to stop when receiving the defrosting end signal during the defrosting process, and controls the four-way valve reversing after delaying the first preset time .
  • the compressor is turned on, and the normal up-conversion rate of the compressor is obtained, and the current up-conversion rate of the compressor is obtained according to the normal up-conversion rate, and the compressor is raised according to the current up-conversion rate.
  • Frequency control wherein the current up-conversion rate is less than the normal up-conversion rate.
  • the method controls the down-speed rate of the compressor when the air conditioner is switched from the defrosting mode to the heating mode, thereby effectively preventing the temperature at the outlet of the throttle element from being too low, causing the lubricating oil to generate a floc flow and blocking the throttling. element.
  • the acquiring the current up-conversion rate of the compressor according to the normal up-conversion rate comprises: multiplying the normal up-conversion rate by a preset ratio to obtain the current up-conversion rate .
  • the preset ratio when the preset ratio is a fixed value, the preset ratio ranges from 1/3 to 2/3; when the preset ratio is a variable value, The preset ratio is gradually increased from the first preset value to the second preset value, wherein the first preset value ranges from 0 to 1/3, and the second preset value ranges from It is 2/3 ⁇ 1.
  • the up-converting control of the compressor according to the current up-conversion rate comprises: directly controlling the compressor to up-convert according to the current up-conversion rate until the compressor The operating frequency reaches the operating frequency required for the normal heating operation of the air conditioner; or, after the compressor is first controlled to increase the frequency according to the current rising frequency for a second predetermined time, the compressor is controlled according to The normal up-conversion rate is up-converted until the operating frequency of the compressor reaches the operating frequency required for normal heating operation of the air conditioner.
  • the defrosting control method of the air conditioner further includes: the air conditioner controlling the compressor to stop when receiving the defrosting signal during operation in the heating mode, and After the third predetermined time delay, controlling the four-way valve to reverse; after the four-way valve is completed, controlling the compressor to be turned on, and controlling the compressor to rise according to the normal up-conversion rate Frequency to defrost the air conditioner.
  • a second aspect of the present invention provides a nonvolatile computer storage medium storing one or more programs when the one or more programs are executed by a device
  • the apparatus is caused to perform the above-described defrosting control method of the air conditioner.
  • the air conditioner controls the compressor to stop when receiving the defrosting end signal during the defrosting process, and controls the four-way valve to reverse after delaying the first preset time.
  • the compressor is turned on, and the normal up-conversion rate of the compressor is obtained, and the current up-conversion rate of the compressor is obtained according to the normal up-conversion rate, and the compressor is raised according to the current up-conversion rate.
  • Frequency control wherein the current up-conversion rate is less than the normal up-conversion rate.
  • an embodiment of the third aspect of the present invention provides an air conditioner including: a compressor, a four-way valve, an outdoor heat exchanger, an indoor heat exchanger, and a throttle element, wherein the row of the compressor a port and a first end of the four-way valve Connected, the second end of the four-way valve is connected to one end of the outdoor heat exchanger, the other end of the outdoor heat exchanger is connected to one end of the indoor heat exchanger, and the other of the indoor heat exchanger One end is connected to one end of the throttle element, the other end of the throttle element is connected to the third end of the four-way valve, and the fourth end of the four-way valve is connected to the air return port of the compressor; a controller, configured to control the compressor to stop when receiving the defrosting end signal during the defrosting process of the air conditioner, and control the four-way valve to change after delaying the first preset time And, when the four-way valve is commutated, controlling the compressor to be turned on, obtaining a
  • the controller controls the compressor to stop when receiving the defrosting end signal during the defrosting process of the air conditioner, and controls the four-way valve to reverse after delaying the first predetermined time.
  • the compressor is turned on, and the normal up-conversion rate of the compressor is obtained, and the current up-conversion rate of the compressor is obtained according to the normal up-conversion rate, and the compressor is raised according to the current up-conversion rate.
  • Frequency control wherein the current up-conversion rate is less than the normal up-conversion rate.
  • the controller acquires a current up-conversion rate of the compressor according to the normal up-conversion rate, wherein the controller multiplies the normal up-conversion rate by a preset ratio The current upsampling rate is obtained.
  • the preset ratio when the preset ratio is a fixed value, the preset ratio ranges from 1/3 to 2/3; when the preset ratio is a variable value, The preset ratio is gradually increased from the first preset value to the second preset value, wherein the first preset value ranges from 0 to 1/3, and the second preset value ranges from It is 2/3 ⁇ 1.
  • the controller performs up-conversion control on the compressor according to the current up-conversion rate, wherein the controller directly controls the compressor to rise according to the current up-conversion rate Frequency until the operating frequency of the compressor reaches the operating frequency required for the normal heating operation of the air conditioner; or the controller first controls the compressor to up-convert the second pre-up according to the current up-conversion rate After the time is set, the compressor is further controlled to be up-converted according to the normal up-conversion rate until the operating frequency of the compressor reaches the operating frequency required for the normal heating operation of the air conditioner.
  • the controller is further configured to control the compressor to stop when receiving the defrosting signal during the operation of the air conditioner in the heating mode, and delay the third preset After the time, controlling the four-way valve to reverse, and when the four-way valve is completed, controlling the compressor to be turned on, and controlling the compressor to increase according to the normal up-conversion rate, The air conditioner is defrosted.
  • FIG. 1 is a flowchart of a defrosting control method of an air conditioner according to an embodiment of the present invention
  • FIG. 2 is a schematic structural view of an air conditioner according to an embodiment of the present invention.
  • 3a is a schematic diagram of an up-conversion control of a compressor when a preset ratio is a fixed value according to an embodiment of the present invention
  • 3b is a schematic diagram of an up-conversion control of a compressor when a preset ratio is a fixed value according to another embodiment of the present invention
  • 4a is a schematic diagram of up-conversion control of a compressor when a preset ratio is a variable value according to an embodiment of the present invention
  • 4b is a schematic diagram of up-conversion control of a compressor when the preset ratio is a variable value according to another embodiment of the present invention.
  • FIG. 1 is a flow chart of a defrosting control method of an air conditioner according to an embodiment of the present invention.
  • the air conditioner includes a compressor, a four-way valve, an outdoor heat exchanger, an indoor heat exchanger, and a throttling element (such as a capillary).
  • the exhaust port of the compressor is connected to the first end of the four-way valve
  • the second end of the four-way valve is connected to one end of the outdoor heat exchanger
  • the other end of the outdoor heat exchanger is connected to one end of the indoor heat exchanger
  • the other end of the indoor heat exchanger is connected to one end of the throttle element
  • the other end of the throttle element is connected to the third end of the four-way valve
  • the fourth end of the four-way valve is connected to the return port of the compressor.
  • the defrosting control method of the air conditioner may include the following steps:
  • the air conditioner controls the compressor to stop when receiving the defrost end signal during the defrosting process, and controls the four-way valve to reverse after the first preset time delay.
  • the first preset time may be calibrated according to actual conditions.
  • the air conditioner is controlled to switch to the defrost mode to defrost the outdoor heat exchanger, thereby ensuring the heating effect of the indoor heat exchanger.
  • the air conditioner is again controlled to switch to the heating mode.
  • the compressor can be stopped first, and then the four-way valve is controlled to switch to the heating mode.
  • the temperature at the throttle element is always low, so it can be delayed after the first preset time.
  • control the four-way valve to reverse the direction so that the system pressure reaches equilibrium, so that the temperature at the throttling element is slowly increased, preventing the temperature at the throttling element from being lower than the pour point temperature of the lubricating oil to generate a floc flow, blocking Throttle element.
  • the reversing of the four-way valve is mainly realized by the internal sliding piece. If the compressor is started up during the four-way valve reversing process, the sliding piece will have a large impact, so in the embodiment of the present invention In the middle, after the four-way valve is completed, the compressor is turned on to ensure that the four-way valve will not be damaged.
  • the temperature at the throttling element is always in a low state before and after the end of the defrost, although the temperature at the throttling element can be increased to some extent by the delay control, if the compressor is directly controlled at this time, it is normal.
  • the up-conversion rate is increased, the refrigerant in the indoor heat exchanger will be evacuated quickly, so that the pressure on the side of the indoor heat exchanger becomes very low, while the pressure on the side of the outdoor heat exchanger is relatively high, and the pressure difference is large.
  • the temperature at the throttling element drops rapidly and falls below the pour point temperature of the lubricating oil, causing the lubricating oil to produce a severe floc flow, resulting in blockage of the throttling element.
  • the normal up-conversion rate of the compressor is obtained, and the current up-conversion rate of the compressor is obtained according to the normal up-conversion rate, and the up-conversion rate is smaller than the compressor.
  • the normal up-conversion rate is then controlled based on the up-conversion rate. That is to say, after the compressor is turned on, the compressor will be up-converted at a rate lower than the normal up-conversion rate, thereby effectively preventing oil blockage of the throttle element.
  • obtaining the current up-conversion rate of the compressor based on the normal up-conversion rate includes multiplying the normal up-conversion rate by a preset ratio to obtain the current up-conversion rate.
  • the preset ratio may be a fixed value or a variable value.
  • the preset ratio may range from 1/3 to 2/3; when the preset ratio is a variable value, the preset ratio is gradually increased from the first preset value to the second value.
  • the preset value may be in the range of 0 to 1/3, and the second preset value may be in the range of 2/3 to 1.
  • the up-converting control of the compressor according to the current up-conversion rate includes: directly controlling the compressor to up-convert according to the current up-conversion rate until the operating frequency of the compressor reaches the normal heating of the air conditioner.
  • the operating frequency required for operation or, first control the compressor to increase the frequency according to the current up-conversion rate for a second predetermined time, and then control the compressor to increase the frequency according to the normal up-conversion rate until the operating frequency of the compressor reaches the normal condition of the air conditioner.
  • the second preset time can be calibrated according to actual conditions.
  • the compressor when the defrosting of the air conditioner ends, the compressor is first stopped, and after the first preset time t1 is delayed, the four-way valve is controlled to be commutated, and the current indoor and outdoor ambient temperature is obtained, and the temperature is pre-conditioned according to the indoor and outdoor environment temperature.
  • the table is used to obtain the normal up-conversion rate V of the compressor at the ambient temperature, and then the normal up-conversion rate V is multiplied by a preset ratio to calculate the current up-conversion rate of the compressor.
  • the compressor After the four-way valve is commutated, the compressor is up-converted according to the current up-conversion rate.
  • the current up-conversion rate of the corresponding compressor is 1/2V.
  • the compressor is controlled to increase frequency according to the normal up-conversion rate V until the operating frequency of the compressor reaches the operating frequency required for the normal heating operation of the air conditioner, as shown in Fig. 3b.
  • the compressor when the preset ratio is a variable value, as shown in FIG. 4a, after controlling the compressor to be turned on, the compressor can be controlled to increase frequency by 1/3V, and then the current up-conversion rate is adjusted at regular intervals.
  • a certain value when the current operating frequency of the compressor reaches 2/3V, stop the current up-conversion rate of the compressor and control the compressor operation at the up-conversion rate of 2/3V until the compressor reaches the operating frequency.
  • the reasonable setting of the time interval and the value of each increase can ensure that the up-conversion time just reaches the second preset time t2 when the up-conversion rate reaches 2/3V.
  • the normal up-conversion rate of the compressor may be obtained in other manners, and the prior art may be used, and is not limited herein.
  • the defrosting control method of the air conditioner according to the embodiment of the present invention is modified on the basis of the defrosting control logic of the existing air conditioner, thereby effectively avoiding the air conditioner without changing the components of the air conditioner.
  • the temperature of the throttling element such as the capillary is lower than the pour point temperature of the lubricating oil, causing the lubricating oil to generate a floc flow, thereby blocking the throttling element, thereby causing the whole machine to malfunction. problem.
  • the defrosting control method of the air conditioner may further include: controlling the compressor to stop when receiving the defrosting signal during the operation of the air conditioner in the heating mode, and delaying After the third preset time, the four-way valve is controlled to be reversed; when the four-way valve is completed, the compressor is controlled to be turned on, and the compressor is up-regulated according to the normal up-conversion rate to defrost the air conditioner.
  • the third preset time can be calibrated according to actual conditions.
  • the prior art can be used to determine whether the outdoor heat exchanger needs to be defrosted, if necessary, the compressor is stopped, and the third preset is delayed. After the time, the four-way valve is reversed, and after the four-way valve is completed, the compressor is controlled to enter the defrost mode at normal up-conversion rate (cooling defrost). Wherein, after the delay of the third preset time, the four-way valve reversing is controlled, which can effectively prevent the noise problem caused by the reversal of the four-way valve, and can control the compressor to be turned on after the four-way valve is completed, which can effectively prevent The four-way valve is damaged by the impact.
  • the compressor When entering the defrost mode, the compressor can be directly controlled to increase the frequency according to the normal up-conversion rate.
  • the reason is that when the air conditioner is operated in the heating mode, the throttling element is always in a high temperature state, and the throttling element is not caused.
  • the temperature is lower than the pour point temperature of the lubricating oil, so that no clogging occurs.
  • the air conditioner controls the compressor to stop when receiving the defrosting end signal during the defrosting process, and controls the delay after the first preset time Four-way valve reversing. After the four-way valve is commutated, the compressor is turned on, and the normal up-conversion rate of the compressor is obtained, and the current up-conversion rate of the compressor is obtained according to the normal up-conversion rate, and the compressor is raised according to the current up-conversion rate. Frequency control, wherein the current up-conversion rate is less than the normal up-conversion rate.
  • the method controls the down-speed rate of the compressor when the air conditioner is switched from the defrosting mode to the heating mode, thereby effectively preventing the temperature at the outlet of the throttle element from being too low, causing the lubricating oil to generate a floc flow and blocking the throttling. element.
  • the air conditioner of the embodiment of the present invention may include: a compressor 10, a four-way valve 20, an outdoor heat exchanger 30, an indoor heat exchanger 40, a throttle element 50, and a controller (not shown in the figure) Out).
  • the exhaust port of the compressor 10 is connected to the first end of the four-way valve 20, the second end of the four-way valve 20 is connected to one end of the outdoor heat exchanger 30, and the other end of the outdoor heat exchanger 30 is heat exchanged with the room.
  • One end of the device 40 is connected, the other end of the indoor heat exchanger 40 is connected to one end of the throttle element 50, the other end of the throttle element 50 is connected to the third end of the four-way valve 20, and the fourth end of the four-way valve 20 is The air return ports of the compressor 10 are connected.
  • the controller is configured to control the compressor 10 to stop when receiving the defrost end signal during the defrosting process of the air conditioner, and control the four-way valve 20 to reverse the direction after the first preset time delay, and when the four-way valve 20 is replaced Upon completion, the compressor 10 is controlled to be turned on, and the normal up-conversion rate of the compressor 10 is obtained, and the current up-conversion rate of the compressor 10 is obtained based on the normal up-conversion rate, and the compressor 10 is up-converted according to the current up-conversion rate. Control, wherein the current up-conversion rate is less than the normal up-conversion rate.
  • the controller acquires the current up-conversion rate of the compressor 10 based on the normal up-conversion rate, wherein the controller multiplies the normal up-conversion rate by a predetermined ratio to obtain the current up-conversion rate.
  • the preset ratio when the preset ratio is a fixed value, the preset ratio ranges from 1/3 to 2/3; when the preset ratio is a variable value, the preset ratio is from the first pre-predetermined
  • the set value is gradually increased to a second preset value, wherein the first preset value ranges from 0 to 1/3, and the second preset value ranges from 2/3 to 1.
  • the controller performs up-conversion control of the compressor 10 according to the current up-conversion rate, wherein the controller directly controls the compressor 10 to up-convert according to the current up-conversion rate until the operating frequency of the compressor 10 reaches The operating frequency required for the normal heating operation of the air conditioner; or, the controller first controls the compressor 10 to increase the frequency according to the current up-clock rate for a second predetermined time, and then controls the compressor 10 to up-convert according to the normal up-conversion rate until The operating frequency of the compressor 10 reaches the operating frequency required for the normal heating operation of the air conditioner.
  • the controller is further configured to control the compressor 10 to stop when receiving the defrosting signal during the operation of the air conditioner in the heating mode, and control the fourth after delaying the third preset time.
  • the valve 20 is reversed, and when the four-way valve 20 is commutated, the compressor 10 is controlled to be turned on, and the compressor 10 is controlled to rise at a normal up-conversion rate to defrost the air conditioner.
  • the controller controls the compressor to stop when receiving the defrosting end signal during the defrosting process of the air conditioner, and controls the four-way valve to reverse after delaying the first predetermined time.
  • the compressor is turned on, and the normal up-conversion rate of the compressor is obtained, and the current up-conversion rate of the compressor is obtained according to the normal up-conversion rate, and the compressor is raised according to the current up-conversion rate.
  • Frequency control wherein the current up-conversion rate is less than the normal up-conversion rate.
  • embodiments of the present invention also provide a non-volatile computer storage medium storing one or more programs that, when executed by a device, cause the device to execute the above-described air conditioner Defrost control method.
  • the air conditioner controls the compressor to stop when receiving the defrosting end signal during the defrosting process, and controls the four-way valve to reverse after delaying the first preset time.
  • the compressor is turned on, and the normal up-conversion rate of the compressor is obtained, and the current up-conversion rate of the compressor is obtained according to the normal up-conversion rate, and the compressor is raised according to the current up-conversion rate.
  • Frequency control wherein the current up-conversion rate is less than the normal up-conversion rate.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the meaning of "a plurality” is at least two, such as two, three, etc., unless specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” unless otherwise specifically defined and defined.
  • the terms should be understood in a broad sense. For example, they may be fixed connections, detachable connections, or integrated; they may be mechanical or electrical; they may be directly connected or indirectly connected through an intermediate medium. It is the internal communication of two components or the interaction of two components unless explicitly defined otherwise.
  • the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • the first feature "on” or “under” the second feature may be a direct contact of the first and second features, or the first and second features may be indirectly through an intermediate medium, unless otherwise explicitly stated and defined. contact.
  • the first feature "above”, “above” and “above” the second feature may be that the first feature is directly above or above the second feature, or merely that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

一种空调器及其的除霜控制方法，所述方法包括以下步骤：空调器在除霜过程中接收到除霜结束信号时控制压缩机（10）停机，并在延时第一预设时间后，控制四通阀（20）换向；当四通阀（20）换向完成后，控制压缩机（10）开机；获取压缩机（10）的正常升频速率，并根据正常升频速率获取压缩机（10）的当前升频速率，以及根据当前升频速率对压缩机（10）进行升频控制，其中，当前升频速率小于正常升频速率。该方法通过在空调器由除霜模式切换至制热模式时，对压缩机（10）进行降升频速率控制，从而有效防止节流元件（50）出口处的温度过低导致润滑油产生絮状流而堵塞节流元件（50）。

Description

空调器及其的除霜控制方法 技术领域
本发明涉及空调技术领域，特别涉及一种空调器的除霜控制方法、一种非易失性计算机存储介质和一种空调器。
背景技术
R290(丙烷)制冷剂又称冷媒，是一种新型环保制冷剂，主要应用于中央空调、热泵空调、家用空调和其它小型制冷设备中。
但是，在饱和液态时，R290的密度比其它制冷剂如R22(二氟一氯甲烷)小，因此相同容积下R290的充注量小。由于受到充注量的限制，使得相同能力段的空调器相比较于使用其它制冷剂的空调器，其充注量要小很多，而为了能够满足制冷量及能效需求，需要使用大排量的压缩机和大面积的换热器，但这样就会导致在以毛细管作为节流装置时，在化霜结束时，毛细管处的温度长时间低于润滑油的倾点温度，使得润滑油产生絮状流，严重时将导致毛细管堵塞，造成整机故障。
发明内容
本发明旨在至少在一定程度上解决相关技术中的技术问题之一。为此，本发明的第一个目的在于提出一种空调器的除霜控制方法，该方法通过在空调器由除霜模式切换至制热模式时，对压缩机进行降升频速率控制，从而有效防止节流元件出口处的温度过低导致润滑油产生絮状流而堵塞节流元件。
本发明的第二个目的在于提出一种非易失性计算机存储介质。
本发明的第三个目的在于提出一种空调器。
为实现上述目的，本发明第一方面实施例提出了一种空调器的除霜控制方法，所述空调器包括压缩机、四通阀、室外换热器、室内换热器和节流元件，其中，所述压缩机的排气口与所述四通阀的第一端相连，所述四通阀的第二端与所述室外换热器的一端相连，所述室外换热器的另一端与所述室内换热器的一端相连，所述室内换热器的另一端与所述节流元件的一端相连，所述节流元件的另一端与所述四通阀的第三端相连，所述四通阀的第四端与所述压缩机的回气口相连，所述方法包括以下步骤：所述空调器在除霜过程中，接收到除霜结束信号时控制所述压缩机停机，并在延时第一预设时间后，控制所述四通阀换向；当所述四通阀换向完成后，控制所述压缩机开机；获取所述压缩机的正常升频速率，并根据所述正常升频速率获取所述压缩机的当前升频速率，以及根据所述当前升频速率对 所述压缩机进行升频控制，其中，所述当前升频速率小于所述正常升频速率。
根据本发明实施例的空调器的除霜控制方法，空调器在除霜过程中接收到除霜结束信号时控制压缩机停机，并在延时第一预设时间后，控制四通阀换向。在四通阀换向完成后，控制压缩机开机，并获取压缩机的正常升频速率，以及根据正常升频速率获取压缩机的当前升频速率，并根据当前升频速率对压缩机进行升频控制，其中，当前升频速率小于正常升频速率。该方法通过在空调器由除霜模式切换至制热模式时，对压缩机进行降升频速率控制，从而有效防止节流元件出口处的温度过低导致润滑油产生絮状流而堵塞节流元件。
根据本发明的一个实施例，所述根据所述正常升频速率获取所述压缩机的当前升频速率，包括：将所述正常升频速率乘以预设比例以获得所述当前升频速率。
根据本发明的一个实施例，当所述预设比例为固定值时，所述预设比例的取值范围为1/3～2/3；当所述预设比例为可变值时，所述预设比例从第一预设值逐渐增加至第二预设值，其中，所述第一预设值的取值范围为0～1/3，所述第二预设值的取值范围为2/3～1。
根据本发明的一个实施例，所述根据所述当前升频速率对所述压缩机进行升频控制，包括：直接控制所述压缩机按照所述当前升频速率升频，直至所述压缩机的运行频率达到所述空调器正常制热运行时所需的运行频率；或者，先控制所述压缩机按照所述当前升频速率升频第二预设时间后，再控制所述压缩机按照所述正常升频速率升频，直至所述压缩机的运行频率达到所述空调器正常制热运行时所需的运行频率。
根据本发明的一个实施例，上述的空调器的除霜控制方法，还包括：所述空调器在以制热模式运行过程中，当接收到除霜信号时控制所述压缩机停机，并在延时第三预设时间后，控制所述四通阀换向；当所述四通阀换向完成后，控制所述压缩机开机，并按照所述正常升频速率控制所述压缩机升频，以对所述空调器进行除霜。
为实现上述目的，本发明第二方面实施例提出了一种非易失性计算机存储介质，所述计算机存储介质存储有一个或者多个程序，当所述一个或者多个程序被一个设备执行时，使得所述设备执行上述的空调器的除霜控制方法。
本发明实施例的非易失性计算机存储介质，空调器在除霜过程中接收到除霜结束信号时控制压缩机停机，并在延时第一预设时间后，控制四通阀换向。在四通阀换向完成后，控制压缩机开机，并获取压缩机的正常升频速率，以及根据正常升频速率获取压缩机的当前升频速率，并根据当前升频速率对压缩机进行升频控制，其中，当前升频速率小于正常升频速率。从而通过在空调器由除霜模式切换至制热模式时，对压缩机进行降升频速率控制，有效防止节流元件出口处的温度过低导致润滑油产生絮状流而堵塞节流元件。
为实现上述目的，本发明第三方面实施例提出了一种空调器，包括：压缩机、四通阀、室外换热器、室内换热器和节流元件，其中，所述压缩机的排气口与所述四通阀的第一端 相连，所述四通阀的第二端与所述室外换热器的一端相连，所述室外换热器的另一端与所述室内换热器的一端相连，所述室内换热器的另一端与所述节流元件的一端相连，所述节流元件的另一端与所述四通阀的第三端相连，所述四通阀的第四端与所述压缩机的回气口相连；控制器，所述控制器用于在所述空调器除霜过程中，接收到除霜结束信号时控制所述压缩机停机，并在延时第一预设时间后，控制所述四通阀换向，以及当所述四通阀换向完成后，控制所述压缩机开机，并获取所述压缩机的正常升频速率，并根据所述正常升频速率获取所述压缩机的当前升频速率，以及根据所述当前升频速率对所述压缩机进行升频控制，其中，所述当前升频速率小于所述正常升频速率。
根据本发明实施例的空调器，控制器在空调器除霜过程中接收到除霜结束信号时控制压缩机停机，并在延时第一预设时间后，控制四通阀换向。当四通阀换向完成后，控制压缩机开机，并获取压缩机的正常升频速率，以及根据正常升频速率获取压缩机的当前升频速率，并根据当前升频速率对压缩机进行升频控制，其中，当前升频速率小于正常升频速率。从而通过在空调器由除霜模式切换至制热模式时，对压缩机进行降升频速率控制，有效防止节流元件出口处的温度过低导致润滑油产生絮状流而堵塞节流元件。
根据本发明的一个实施例，所述控制器根据所述正常升频速率获取所述压缩机的当前升频速率时，其中，所述控制器将所述正常升频速率乘以预设比例以获得所述当前升频速率。
根据本发明的一个实施例，当所述预设比例为固定值时，所述预设比例的取值范围为1/3～2/3；当所述预设比例为可变值时，所述预设比例从第一预设值逐渐增加至第二预设值，其中，所述第一预设值的取值范围为0～1/3，所述第二预设值的取值范围为2/3～1。
根据本发明的一个实施例，所述控制器根据所述当前升频速率对所述压缩机进行升频控制时，其中，所述控制器直接控制所述压缩机按照所述当前升频速率升频，直至所述压缩机的运行频率达到所述空调器正常制热运行时所需的运行频率；或者，所述控制器先控制所述压缩机按照所述当前升频速率升频第二预设时间后，再控制所述压缩机按照所述正常升频速率升频，直至所述压缩机的运行频率达到所述空调器正常制热运行时所需的运行频率。
根据本发明的一个实施例，所述控制器还用于在所述空调器以制热模式运行过程中，当接收到除霜信号时控制所述压缩机停机，并在延时第三预设时间后，控制所述四通阀换向，以及当所述四通阀换向完成后，控制所述压缩机开机，并按照所述正常升频速率控制所述压缩机升频，以对所述空调器进行除霜。
附图说明
图1是根据本发明实施例的空调器的除霜控制方法的流程图；
图2是根据本发明一个实施例的空调器的结构示意图；
图3a是根据本发明一个实施例的预设比例为固定值时压缩机的升频控制示意图；
图3b是根据本发明另一个实施例的预设比例为固定值时压缩机的升频控制示意图；
图4a是根据本发明一个实施例的预设比例为可变值时压缩机的升频控制示意图；以及
图4b是根据本发明另一个实施例的预设比例为可变值时压缩机的升频控制示意图。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
下面参照附图来描述根据本发明实施例提出的空调器的除霜控制方法、非易失性计算机存储介质和空调器。
图1是根据本发明实施例的空调器的除霜控制方法的流程图。
在本发明的实施例中，如图2所示，空调器包括压缩机、四通阀、室外换热器、室内换热器和节流元件(如毛细管)。其中，压缩机的排气口与四通阀的第一端相连，四通阀的第二端与室外换热器的一端相连，室外换热器的另一端与室内换热器的一端相连，室内换热器的另一端与节流元件的一端相连，节流元件的另一端与四通阀的第三端相连，四通阀的第四端与压缩机的回气口相连。
如图1所示，该空调器的除霜控制方法可包括以下步骤：
S1，空调器在除霜过程中，接收到除霜结束信号时控制压缩机停机，并在延时第一预设时间后，控制四通阀换向。其中，第一预设时间可根据实际情况进行标定。
具体地，在空调器以制热模式运行的过程中，由于室外换热器会出现结霜现象，所以在空调器以制热模式运行一段时间后，或者室外换热器达到设定的除霜条件时，控制空调器切换至除霜模式以对室外换热器进行除霜，从而保证室内换热器的制热效果。
在对室外换热器除霜完成后，再次控制空调器切换至制热模式，此时可先控制压缩机停机，然后控制四通阀换向以切换至制热模式。其中，由于除霜结束时，室外换热器侧的压力比较高，而室内换热器侧的压力比较低，节流元件处的温度一直比较低，所以可以在延时第一预设时间后再控制四通阀换向，以使系统压力达到平衡，从而使得节流元件处的温度慢慢升高，防止节流元件处的温度低于润滑油的倾点温度而产生絮状流，堵塞节流元件。同时，由于除霜结束时室外换热器侧的压力较高，而室内换热器侧的压力比较低，如果此时直接控制四通阀换向，将产生较大的切换噪声，所以在延时第一预设时间后再控制 四通阀换向还可以有效降低四通阀的切换噪声。
S2，当四通阀换向完成后，控制压缩机开机。
可以理解的是，四通阀的换向主要是通过内部滑片实现，如果在四通阀换向过程中控制压缩机开机运行，将对滑片产生较大冲击，所以在本发明的实施例中，在四通阀换向完成后再控制压缩机开机，以保证四通阀不会发生损坏。
S3，获取压缩机的正常升频速率，并根据正常升频速率获取压缩机的当前升频速率，以及根据当前升频速率对压缩机进行升频控制，其中，当前升频速率小于正常升频速率。
具体而言，由于除霜结束前后，节流元件处的温度一直处于较低状态，虽然通过延时控制可以在一定程度上提高节流元件处的温度，但是如果此时直接控制压缩机以正常升频速率升频，那么室内换热器中的制冷剂将被快速抽空，使得室内换热器侧的压力变得十分低，而室外换热器侧的压力却比较高，在较大压力差的作用下，节流元件处的温度会快速下降并低于润滑油的倾点温度，从而使得润滑油产生严重絮状流，导致节流元件堵塞。
因此，在本发明的实施例中，在控制压缩机开机运行时，获取压缩机的正常升频速率，并根据正常升频速率获取压缩机的当前升频速率，并且该升频速率小于压缩机的正常升频速率，然后根据该升频速率对压缩机进行控制。也就是说，在压缩机开机运行后，将以低于正常升频速率的速率来对压缩机进行升频控制，从而有效防止节流元件出现油堵。
根据本发明的一个实施例，根据正常升频速率获取压缩机的当前升频速率，包括：将正常升频速率乘以预设比例以获得当前升频速率。
在本发明的实施例中，预设比例可以是固定值也可以是可变值。当预设比例为固定值时，预设比例的取值范围可以为1/3～2/3；当预设比例为可变值时，预设比例从第一预设值逐渐增加至第二预设值，其中，第一预设值的取值范围可以为0～1/3，第二预设值的取值范围可以为2/3～1。
进一步地，在本发明的实施例中，根据当前升频速率对压缩机进行升频控制，包括：直接控制压缩机按照当前升频速率升频，直至压缩机的运行频率达到空调器正常制热运行时所需的运行频率；或者，先控制压缩机按照当前升频速率升频第二预设时间后，再控制压缩机按照正常升频速率升频，直至压缩机的运行频率达到空调器正常制热运行时所需的运行频率。其中，第二预设时间可根据实际情况进行标定。
具体地，在空调器除霜结束时，先控制压缩机停机，延时第一预设时间t1后，控制四通阀换向，同时获取当前室内外环境温度，并根据室内外环境温度从预设表格中获取该环境温度下压缩机的正常升频速率V，然后，将正常升频速率V乘以预设比例以计算获得压缩机的当前升频速率。在四通阀换向完成后，根据当前升频速率对压缩机进行升频控制。
例如，当预设比例为固定值如1/2时，相应的压缩机的当前升频速率为1/2V，此时可 直接控制压缩机按照1/2V升频，直至压缩机的运行频率达到空调器正常制热运行时所需的运行频率，如图3a所示；或者先控制压缩机按照1/2V升频第二预设时间t2后，再控制压缩机按照正常升频速率V升频，直至压缩机的运行频率达到空调器正常制热运行时所需的运行频率，如图3b所示。
又如，当预设比例为可变值时，如图4a所示，在控制压缩机开机后，可先控制压缩机以1/3V进行升频，然后每隔一定时间将当前升频速率调高一定的值，当压缩机的当前运行频率达到2/3V时，停止调高压缩机的当前升频速率，并以2/3V的升频速率控制压缩机运行，直至压缩机的运行频率达到空调器正常制热运行时所需的运行频率；或者，如图4b所示，在控制压缩机开机后，可先控制压缩机以1/3V进行升频，然后每隔一定时间将当前升频速率调高一定的值，当压缩机的当前运行频率达到2/3V且达到第二预设时间t2时，停止调高压缩机的当前升频速率，并以正常升频速率V控制压缩机升频，直至压缩机的运行频率达到空调器正常制热运行时所需的运行频率。
可以理解的是，在上述示例中，可通过对时间间隔以及每次调高的值的合理设置，来保证在升频速率达到2/3V时，升频时间刚好达到第二预设时间t2。另外，在本发明的实施例中，还可以采用其他方式来获取压缩机的正常升频速率，具体可以采用现有技术，这里不做限制。
根据本发明实施例的空调器的除霜控制方法，通过在现有的空调器的除霜控制逻辑的基础上进行修改，从而在不改变空调器整机部件的前提下，有效避免了空调器在由除霜模式切换至制热模式时，因节流元件如毛细管处的温度低于润滑油的倾点温度，导致润滑油产生絮状流，从而堵塞节流元件，进而导致整机故障的问题。
进一步地，根据本发明的一个实施例，上述的空调器的除霜控制方法还可包括：空调器在以制热模式运行过程中，当接收到除霜信号时控制压缩机停机，并在延时第三预设时间后，控制四通阀换向；当四通阀换向完成后，控制压缩机开机，并按照正常升频速率控制压缩机升频，以对空调器进行除霜。其中，第三预设时间可根据实际情况进行标定。
具体地，在空调器以制热模式运行的过程中，可以采用现有技术来判断是否需要对室外换热器进行除霜，如果需要，则控制压缩机停机，并在延时第三预设时间后控制四通阀换向，以及在四通阀换向完成后，控制压缩机以正常升频速率进入除霜模式(制冷除霜)。其中，在延时第三预设时间后再控制四通阀换向，可以有效防止四通阀换向导致的噪音问题，并且在四通阀换向完成后再控制压缩机开机，可以有效防止四通阀受冲击而损坏。而在进入除霜模式时可以直接控制压缩机按照正常升频速率进行升频，其原因在于，空调器以制热模式运行时，节流元件一直处于高温状态下，不会导致节流元件处的温度低于润滑油的倾点温度，因而不会产生堵塞现象。
综上所述，根据本发明实施例的空调器的除霜控制方法，空调器在除霜过程中接收到除霜结束信号时控制压缩机停机，并在延时第一预设时间后，控制四通阀换向。在四通阀换向完成后，控制压缩机开机，并获取压缩机的正常升频速率，以及根据正常升频速率获取压缩机的当前升频速率，并根据当前升频速率对压缩机进行升频控制，其中，当前升频速率小于正常升频速率。该方法通过在空调器由除霜模式切换至制热模式时，对压缩机进行降升频速率控制，从而有效防止节流元件出口处的温度过低导致润滑油产生絮状流而堵塞节流元件。
下面来详细描述本发明实施例的空调器。
如图2所示，本发明实施例的空调器可包括：压缩机10、四通阀20、室外换热器30、室内换热器40、节流元件50和控制器(图中未具体示出)。
其中，压缩机10的排气口与四通阀20的第一端相连，四通阀20的第二端与室外换热器30的一端相连，室外换热器30的另一端与室内换热器40的一端相连，室内换热器40的另一端与节流元件50的一端相连，节流元件50的另一端与四通阀20的第三端相连，四通阀20的第四端与压缩机10的回气口相连。控制器用于在空调器除霜过程中，接收到除霜结束信号时控制压缩机10停机，并在延时第一预设时间后，控制四通阀20换向，以及当四通阀20换向完成后，控制压缩机10开机，并获取压缩机10的正常升频速率，并根据正常升频速率获取压缩机10的当前升频速率，以及根据当前升频速率对压缩机10进行升频控制，其中，当前升频速率小于正常升频速率。
根据本发明的一个实施例，控制器根据正常升频速率获取压缩机10的当前升频速率时，其中，控制器将正常升频速率乘以预设比例以获得当前升频速率。
根据本发明的一个实施例，当预设比例为固定值时，预设比例的取值范围为1/3～2/3；当预设比例为可变值时，预设比例从第一预设值逐渐增加至第二预设值，其中，第一预设值的取值范围为0～1/3，第二预设值的取值范围为2/3～1。
根据本发明的一个实施例，控制器根据当前升频速率对压缩机10进行升频控制时，其中，控制器直接控制压缩机10按照当前升频速率升频，直至压缩机10的运行频率达到空调器正常制热运行时所需的运行频率；或者，控制器先控制压缩机10按照当前升频速率升频第二预设时间后，再控制压缩机10按照正常升频速率升频，直至压缩机10的运行频率达到空调器正常制热运行时所需的运行频率。
根据本发明的一个实施例，控制器还用于在空调器以制热模式运行过程中，当接收到除霜信号时控制压缩机10停机，并在延时第三预设时间后，控制四通阀20换向，以及当四通阀20换向完成后，控制压缩机10开机，并按照正常升频速率控制压缩机10升频，以对空调器进行除霜。
需要说明的是，在本发明实施例的空调器中未披露的细节，请参照本发明实施例的空调器的除霜控制方法中所披露的细节，具体这里不再详述。
根据本发明实施例的空调器，控制器在空调器除霜过程中接收到除霜结束信号时控制压缩机停机，并在延时第一预设时间后，控制四通阀换向。当四通阀换向完成后，控制压缩机开机，并获取压缩机的正常升频速率，以及根据正常升频速率获取压缩机的当前升频速率，并根据当前升频速率对压缩机进行升频控制，其中，当前升频速率小于正常升频速率。从而通过在空调器由除霜模式切换至制热模式时，对压缩机进行降升频速率控制，有效防止节流元件出口处的温度过低导致润滑油产生絮状流而堵塞节流元件。
此外，本发明的实施例还提出了一种非易失性计算机存储介质，计算机存储介质存储有一个或者多个程序，当一个或者多个程序被一个设备执行时，使得设备执行上述的空调器的除霜控制方法。
本发明实施例的非易失性计算机存储介质，空调器在除霜过程中接收到除霜结束信号时控制压缩机停机，并在延时第一预设时间后，控制四通阀换向。在四通阀换向完成后，控制压缩机开机，并获取压缩机的正常升频速率，以及根据正常升频速率获取压缩机的当前升频速率，并根据当前升频速率对压缩机进行升频控制，其中，当前升频速率小于正常升频速率。从而通过在空调器由除霜模式切换至制热模式时，对压缩机进行降升频速率控制，有效防止节流元件出口处的温度过低导致润滑油产生絮状流而堵塞节流元件。
应当理解，本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过具有相关程序的硬件来完成，该程序可以存储于一计算机可读存储介质中，存储介质可以包括：闪存盘、只读存储器(Read-Only Memory，ROM)、随机存取器(Random Access Memory，RAM)、磁盘或光盘等。
另外，在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”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发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定” 等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。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发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明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必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本发明的限制，本领域的普通技术人员在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (11)

  1. 一种空调器的除霜控制方法，其特征在于，所述空调器包括压缩机、四通阀、室外换热器、室内换热器和节流元件，其中，所述压缩机的排气口与所述四通阀的第一端相连，所述四通阀的第二端与所述室外换热器的一端相连，所述室外换热器的另一端与所述室内换热器的一端相连，所述室内换热器的另一端与所述节流元件的一端相连，所述节流元件的另一端与所述四通阀的第三端相连，所述四通阀的第四端与所述压缩机的回气口相连，所述方法包括以下步骤：
    所述空调器在除霜过程中，接收到除霜结束信号时控制所述压缩机停机，并在延时第一预设时间后，控制所述四通阀换向；
    当所述四通阀换向完成后，控制所述压缩机开机；
    获取所述压缩机的正常升频速率，并根据所述正常升频速率获取所述压缩机的当前升频速率，以及根据所述当前升频速率对所述压缩机进行升频控制，其中，所述当前升频速率小于所述正常升频速率。
  2. 如权利要求1所述的空调器的除霜控制方法，其特征在于，所述根据所述正常升频速率获取所述压缩机的当前升频速率，包括：
    将所述正常升频速率乘以预设比例以获得所述当前升频速率。
  3. 如权利要求2所述的空调器的除霜控制方法，其特征在于，其中，
    当所述预设比例为固定值时，所述预设比例的取值范围为1/3～2/3；
    当所述预设比例为可变值时，所述预设比例从第一预设值逐渐增加至第二预设值，其中，所述第一预设值的取值范围为0～1/3，所述第二预设值的取值范围为2/3～1。
  4. 如权利要求1-3中任一项所述的空调器的除霜控制方法，其特征在于，所述根据所述当前升频速率对所述压缩机进行升频控制，包括：
    直接控制所述压缩机按照所述当前升频速率升频，直至所述压缩机的运行频率达到所述空调器正常制热运行时所需的运行频率；或者，
    先控制所述压缩机按照所述当前升频速率升频第二预设时间后，再控制所述压缩机按照所述正常升频速率升频，直至所述压缩机的运行频率达到所述空调器正常制热运行时所需的运行频率。
  5. 如权利要求1所述的空调器的除霜控制方法，其特征在于，还包括：
    所述空调器在以制热模式运行过程中，当接收到除霜信号时控制所述压缩机停机，并在延时第三预设时间后，控制所述四通阀换向；
    当所述四通阀换向完成后，控制所述压缩机开机，并按照所述正常升频速率控制所述 压缩机升频，以对所述空调器进行除霜。
  6. 一种非易失性计算机存储介质，其特征在于，所述计算机存储介质存储有一个或者多个程序，当所述一个或者多个程序被一个设备执行时，使得所述设备执行如权利要求1-5任一项所述的空调器的除霜控制方法。
  7. 一种空调器，其特征在于，包括：
    压缩机、四通阀、室外换热器、室内换热器和节流元件，其中，所述压缩机的排气口与所述四通阀的第一端相连，所述四通阀的第二端与所述室外换热器的一端相连，所述室外换热器的另一端与所述室内换热器的一端相连，所述室内换热器的另一端与所述节流元件的一端相连，所述节流元件的另一端与所述四通阀的第三端相连，所述四通阀的第四端与所述压缩机的回气口相连；
    控制器，所述控制器用于在所述空调器除霜过程中，接收到除霜结束信号时控制所述压缩机停机，并在延时第一预设时间后，控制所述四通阀换向，以及当所述四通阀换向完成后，控制所述压缩机开机，并获取所述压缩机的正常升频速率，并根据所述正常升频速率获取所述压缩机的当前升频速率，以及根据所述当前升频速率对所述压缩机进行升频控制，其中，所述当前升频速率小于所述正常升频速率。
  8. 如权利要求7所述的空调器，其特征在于，所述控制器根据所述正常升频速率获取所述压缩机的当前升频速率时，其中，
    所述控制器将所述正常升频速率乘以预设比例以获得所述当前升频速率。
  9. 如权利要求8所述的空调器，其特征在于，其中，
    当所述预设比例为固定值时，所述预设比例的取值范围为1/3～2/3；
    当所述预设比例为可变值时，所述预设比例从第一预设值逐渐增加至第二预设值，其中，所述第一预设值的取值范围为0～1/3，所述第二预设值的取值范围为2/3～1。
  10. 如权利要求7-9中任一项所述的空调器，其特征在于，所述控制器根据所述当前升频速率对所述压缩机进行升频控制时，其中，
    所述控制器直接控制所述压缩机按照所述当前升频速率升频，直至所述压缩机的运行频率达到所述空调器正常制热运行时所需的运行频率；或者，
    所述控制器先控制所述压缩机按照所述当前升频速率升频第二预设时间后，再控制所述压缩机按照所述正常升频速率升频，直至所述压缩机的运行频率达到所述空调器正常制热运行时所需的运行频率。
  11. 如权利要求7所述的空调器，其特征在于，所述控制器还用于在所述空调器以制热模式运行过程中，当接收到除霜信号时控制所述压缩机停机，并在延时第三预设时间后，控制所述四通阀换向，以及当所述四通阀换向完成后，控制所述压缩机开机，并按照所述 正常升频速率控制所述压缩机升频，以对所述空调器进行除霜。
PCT/CN2017/078655 2017-03-29 2017-03-29 空调器及其的除霜控制方法 Ceased WO2018176285A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2017/078655 WO2018176285A1 (zh) 2017-03-29 2017-03-29 空调器及其的除霜控制方法
JP2019553519A JP7071395B2 (ja) 2017-03-29 2017-03-29 空気調和機及びその除霜制御方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/078655 WO2018176285A1 (zh) 2017-03-29 2017-03-29 空调器及其的除霜控制方法

Publications (1)

Publication Number Publication Date
WO2018176285A1 true WO2018176285A1 (zh) 2018-10-04

Family

ID=63673883

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/078655 Ceased WO2018176285A1 (zh) 2017-03-29 2017-03-29 空调器及其的除霜控制方法

Country Status (2)

Country Link
JP (1) JP7071395B2 (zh)
WO (1) WO2018176285A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112880049B (zh) * 2021-02-22 2022-02-25 青岛海信日立空调系统有限公司 空调系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5186016A (en) * 1990-11-06 1993-02-16 Kabushiki Kaisha Toshiba Defrosting control method and apparatus for air conditioner
CN103123194A (zh) * 2012-03-31 2013-05-29 宁波奥克斯电气有限公司 多联式空调机组的除霜方法
CN104748465A (zh) * 2013-12-27 2015-07-01 广东美的制冷设备有限公司 空调除霜控制方法、空调除霜控制装置和空调
CN106196476A (zh) * 2016-07-27 2016-12-07 青岛海尔空调器有限总公司 空调内外机清洗方法
CN106949679A (zh) * 2017-03-29 2017-07-14 广东美的制冷设备有限公司 空调器及其的除霜控制方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08223989A (ja) * 1995-02-13 1996-08-30 Mitsubishi Electric Corp 空気調和機の制御装置
CN1268886C (zh) * 2001-07-20 2006-08-09 乐金电子(天津)电器有限公司 热泵的除霜运转方法
JP2004225929A (ja) * 2003-01-20 2004-08-12 Sanyo Electric Co Ltd 空気調和装置及び空気調和装置の制御方法
JP6113503B2 (ja) * 2012-12-28 2017-04-12 ダイキン工業株式会社 ヒートポンプ装置
JP6428373B2 (ja) * 2015-02-26 2018-11-28 株式会社富士通ゼネラル ヒートポンプ式暖房給湯装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5186016A (en) * 1990-11-06 1993-02-16 Kabushiki Kaisha Toshiba Defrosting control method and apparatus for air conditioner
CN103123194A (zh) * 2012-03-31 2013-05-29 宁波奥克斯电气有限公司 多联式空调机组的除霜方法
CN104748465A (zh) * 2013-12-27 2015-07-01 广东美的制冷设备有限公司 空调除霜控制方法、空调除霜控制装置和空调
CN106196476A (zh) * 2016-07-27 2016-12-07 青岛海尔空调器有限总公司 空调内外机清洗方法
CN106949679A (zh) * 2017-03-29 2017-07-14 广东美的制冷设备有限公司 空调器及其的除霜控制方法

Also Published As

Publication number Publication date
JP7071395B2 (ja) 2022-05-18
JP2020515801A (ja) 2020-05-28

Similar Documents

Publication Publication Date Title
CN106949679B (zh) 空调器及其的除霜控制方法
US10077925B2 (en) Refrigeration apparatus
KR101626675B1 (ko) 공기조화기 및 그 제어방법
CN105637298A (zh) 空调系统及其控制方法
CN107477798B (zh) 用于控制空调的冷媒的方法和装置、空调
CN107084577A (zh) 一种双系统冰箱的控制方法及控制装置和冰箱
WO2018001183A1 (zh) 多联机系统及其控制方法
CN108592297B (zh) 空调器除霜控制方法
JP6723442B2 (ja) 冷凍サイクル装置及び冷凍サイクル装置の除霜運転方法
CN114165868A (zh) 空调系统控制方法、装置、空调流路系统及空调系统
CN107449078A (zh) 空调系统、空调系统的控制装置和方法
CN115654775B (zh) 一种空调系统及其控制方法
CN105758073B (zh) 制冷设备及其速冷控制方法
CN107883599A (zh) 独立控制多温区智能制冷恒温设备
WO2018176285A1 (zh) 空调器及其的除霜控制方法
CN107504708A (zh) 空调系统及其控制方法
JP6529579B2 (ja) ヒートポンプシステム
CN104501439A (zh) 用于冰箱的制冷系统和冰箱
JP7319890B2 (ja) ヒートポンプ式温水暖房システム
CN105066354B (zh) 空调系统的控制方法和控制装置
CN107270518A (zh) 空调系统、空调系统的控制装置和方法
CN107477821B (zh) 空调系统、空调系统的控制装置和方法
CN107477926B (zh) 空调系统、空调系统的控制装置和方法
CN107270517B (zh) 空调系统、空调系统的控制装置和方法
CN207831732U (zh) 独立控制多温区智能制冷恒温设备

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: 17904053

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2019553519

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 07/02/2020)

122 Ep: pct application non-entry in european phase

Ref document number: 17904053

Country of ref document: EP

Kind code of ref document: A1