CN110925955A - Outdoor unit deicing device, outdoor unit, air conditioner and deicing method - Google Patents
Outdoor unit deicing device, outdoor unit, air conditioner and deicing method Download PDFInfo
- Publication number
- CN110925955A CN110925955A CN201911166083.0A CN201911166083A CN110925955A CN 110925955 A CN110925955 A CN 110925955A CN 201911166083 A CN201911166083 A CN 201911166083A CN 110925955 A CN110925955 A CN 110925955A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- heat
- compressor
- outdoor unit
- temperature
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 238000012546 transfer Methods 0.000 claims abstract description 15
- 238000002844 melting Methods 0.000 claims description 36
- 230000008018 melting Effects 0.000 claims description 36
- 239000003507 refrigerant Substances 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000005485 electric heating Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 8
- 239000002918 waste heat Substances 0.000 description 8
- 238000000926 separation method Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
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
- 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
- F24F11/42—Defrosting; Preventing freezing of outdoor 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
-
- 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
- F24F11/88—Electrical aspects, e.g. circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
-
- 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
Landscapes
- 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)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to an outdoor unit deicing device, an outdoor unit, an air conditioner and a deicing method, wherein the deicing device comprises: the first heat exchanger is wrapped on the periphery of the compressor and used for absorbing heat of the compressor; the second heat exchanger is communicated with the first heat exchanger and arranged on the outdoor unit chassis; and the controller is used for controlling the first heat exchanger to absorb the heat of the compressor so that the first heat exchanger transfers the heat to the second heat exchanger to exchange heat for the outdoor unit chassis. According to the technical scheme provided by the invention, the first heat exchanger is wrapped on the periphery of the compressor, and after the heat of the compressor is absorbed, the heat can be transferred to the second heat exchanger to exchange heat with the chassis of the outdoor unit, so that the automatic deicing of the outdoor unit is realized, the continuous and stable heating operation of the air conditioner under the ultralow-temperature working condition is ensured, and compared with the technical scheme of deicing by additionally arranging the electric heating belt on the chassis, the technical scheme provided by the invention does not need to consider the problems of electric wiring and safety, and is higher in reliability.
Description
Technical Field
The invention relates to the technical field of air conditioner deicing, in particular to an outdoor unit deicing device, an outdoor unit, an air conditioner and a deicing method.
Background
In cold areas, when indoor use air conditioner heats, outdoor ambient temperature is very low, there is the comdenstion water to flow to the chassis along the condenser during the defrosting simultaneously, the comdenstion water that flows down after the defrosting exists and can't in time discharge just at the problem that the chassis freezes again, the mainstream scheme of now deicing is for installing the electrical heating area additional on the chassis, through the mainboard power supply, judge whether electrical heating opens according to outer loop temperature, control accuracy is not high, and directly at the chassis wiring, need consider electrical safety's problem, part wiring probably does not pass through the wash port, it is not good to lead to wash port top deicing effect, there is the accumulation thickening phenomenon near the condenser fin far away from the heating area ice layer, influence the effect of heating.
Disclosure of Invention
In view of the above, the present invention provides an outdoor unit deicing device, an outdoor unit, an air conditioner and a deicing method, so as to solve the problem of poor deicing effect after a chassis of an outdoor unit is frozen in the prior art.
According to a first aspect of embodiments of the present invention, there is provided an outdoor deicing device comprising:
the first heat exchanger is wrapped on the periphery of the compressor and used for absorbing heat of the compressor;
the second heat exchanger is communicated with the first heat exchanger and arranged on the outdoor unit chassis;
and the controller is used for controlling the first heat exchanger to absorb the heat of the compressor so that the first heat exchanger transfers the heat to the second heat exchanger to exchange heat for the outdoor unit chassis.
Preferably, the apparatus further comprises:
the temperature detection device is used for detecting the outdoor environment temperature and the outdoor machine chassis temperature;
the controller is specifically configured to determine whether to enter an ice melting mode according to the outdoor environment temperature and the outdoor unit chassis temperature, and control the first heat exchanger to absorb heat of the compressor when determining that the ice melting mode is entered.
Preferably, the first heat exchanger is connected with an evaporator of the indoor unit;
a first electromagnetic valve is arranged on a pipeline for communicating the first heat exchanger with the evaporator;
the controller is specifically configured to determine to enter a first ice-making mode when the outdoor environment temperature and the outdoor unit chassis temperature satisfy a first preset condition, and control the opening of the first solenoid valve in the first ice-making mode, so that a refrigerant of the evaporator flows into the first heat exchanger and then absorbs heat of the compressor housing.
Preferably, the first heat exchanger is connected with a gas outlet of the compressor;
a second electromagnetic valve is arranged on a pipeline which is communicated with the first heat exchanger and the exhaust port of the compressor;
the controller is specifically configured to determine to enter a second ice mode when the outdoor environment temperature and the outdoor unit chassis temperature satisfy a second preset condition, and control the opening of the second solenoid valve in the second ice mode, so that the first heat exchanger absorbs heat of a high-temperature refrigerant discharged from an exhaust port of the compressor.
Preferably, the second heat exchanger is connected with the air inlet of the compressor through a gas-liquid separator.
Preferably, the second heat exchanger is communicated with the first heat exchanger through a copper pipe.
Preferably, the first heat exchanger, and/or the second heat exchanger, is a microchannel heat exchanger.
According to a second aspect of embodiments of the present invention, there is provided an outdoor unit including:
the outdoor unit deicing device is provided.
According to a third aspect of embodiments of the present invention, there is provided an outdoor deicing method, comprising:
controlling a first heat exchanger to absorb heat of a compressor so that the first heat exchanger transfers the heat to a second heat exchanger to exchange heat for an outdoor unit chassis;
the first heat exchanger is wrapped on the periphery of the compressor and used for absorbing heat of the compressor;
the second heat exchanger is communicated with the first heat exchanger and arranged on the outdoor unit chassis.
Preferably, the method further comprises:
detecting the outdoor environment temperature and the outdoor machine chassis temperature;
the control of the first heat exchanger to absorb heat of the compressor specifically comprises the following steps:
and determining whether to enter an ice melting mode or not according to the outdoor environment temperature and the outdoor unit chassis temperature, and controlling the first heat exchanger to absorb the heat of the compressor when determining to enter the ice melting mode.
Preferably, if the first heat exchanger is connected to an evaporator of an indoor unit, and a first solenoid valve is disposed on a pipeline communicating the first heat exchanger and the evaporator, the controlling the first heat exchanger to absorb heat of the compressor includes:
when the outdoor environment temperature and the outdoor unit chassis temperature meet a first preset condition, determining to enter a first ice-purifying mode, and controlling the first electromagnetic valve to open in the first ice-purifying mode, so that the refrigerant of the evaporator flows into the first heat exchanger and then absorbs the heat of the shell of the compressor.
Preferably, if the first heat exchanger is connected with the exhaust port of the compressor; a second electromagnetic valve is arranged on a pipeline which is communicated with the first heat exchanger and the exhaust port of the compressor; the controlling the first heat exchanger to absorb heat of the compressor includes:
and when the outdoor environment temperature and the outdoor unit chassis temperature meet a second preset condition, determining to enter a second ice mode, and controlling the second electromagnetic valve to open in the second ice mode so that the first heat exchanger absorbs the heat of the high-temperature refrigerant discharged from the exhaust port of the compressor.
Preferably, the determining whether to enter the deicing mode specifically includes:
if the outdoor environment temperature is less than or equal to a first preset temperature, entering an ice melting mode;
and if the outdoor environment temperature is higher than a first preset temperature, the ice melting mode is not entered or exited.
Preferably, the controlling the first heat exchanger to absorb heat of the compressor specifically includes:
and in the heating mode, controlling the first heat exchanger to absorb the heat of the compressor.
According to a fourth aspect of embodiments of the present invention, there is provided an air conditioner including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
controlling a first heat exchanger to absorb heat of a compressor so that the first heat exchanger transfers the heat to a second heat exchanger to exchange heat for an outdoor unit chassis;
the first heat exchanger is wrapped on the periphery of the compressor and used for absorbing heat of the compressor;
the second heat exchanger is communicated with the first heat exchanger and arranged on the outdoor unit chassis.
The technical scheme provided by the embodiment of the invention can have the following beneficial effects:
the first heat exchanger is wrapped on the periphery of the compressor, and after the heat of the compressor is absorbed, the heat can be transferred to the second heat exchanger to exchange heat with the chassis of the outdoor unit, so that the automatic deicing of the outdoor unit is realized, the continuous and stable heating operation of the air conditioner under the ultralow temperature working condition is ensured, and compared with the technical scheme of deicing by additionally arranging an electric heating belt on the chassis, the technical scheme provided by the invention has the advantages that the problems of electric wiring and safety are not required to be considered, and the reliability is higher; in addition, the position and the size of the second heat exchanger can be set as required, so that the ice melting blind area is less and the ice melting effect is good; in addition, the technical scheme provided by the invention utilizes the waste heat generated by the compressor during working to exchange heat and melt ice on the chassis of the outdoor unit, so that the energy is saved, the user experience is good, and the satisfaction is high.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a schematic structural view of an outdoor deicing apparatus according to an exemplary embodiment;
FIG. 2 is a flow chart illustrating an outdoor deicing method according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Fig. 1 is a schematic structural view illustrating an outdoor deicing apparatus according to an exemplary embodiment, as shown in fig. 1, the apparatus comprising:
the first heat exchanger 1 is wrapped on the periphery of the compressor and used for absorbing heat of the compressor;
the second heat exchanger 2 is communicated with the first heat exchanger 1 and arranged on the outdoor unit chassis;
and the controller (not shown in the drawing) is used for controlling the first heat exchanger to absorb the heat of the compressor, so that the first heat exchanger transfers the heat to the second heat exchanger to exchange heat with the chassis of the outdoor unit.
It should be noted that the technical solution provided in this embodiment is applicable to various air conditioners, including but not limited to: automotive air conditioners, household air conditioners, and the like.
The controller includes but is not limited to: singlechip, microprocessor, DSP controller, FPGA controller, PLC controller etc..
Preferably, the second heat exchanger 2 is communicated with the first heat exchanger 1 through a copper pipe.
Preferably, the first heat exchanger 1, and/or the second heat exchanger 2, is a microchannel heat exchanger.
The micro-channel heat exchanger can be divided into a micro-channel heat exchanger and a large-scale micro-channel heat exchanger according to the overall dimension. The micro-channel heat exchanger is designed to meet the development requirement of the electronic industry, and has compact, light and high efficiency structure, and the structure forms of the micro heat exchanger are a flat plate cross flow type heat exchanger and a sintered mesh type porous micro heat exchanger. The large-scale micro-channel heat exchanger is mainly applied to traditional industrial refrigeration, waste heat utilization, automobile air conditioners, household air conditioners, heat pump water heaters and the like. The structure form of the radiator comprises a parallel flow tube type radiator and a three-dimensional cross flow type radiator.
It can be understood that, according to the technical scheme provided by this embodiment, since the first heat exchanger is wrapped around the compressor, after absorbing heat of the compressor, the heat can be transferred to the second heat exchanger to exchange heat with the chassis of the outdoor unit, thereby realizing automatic deicing of the outdoor unit, and ensuring continuous and stable heating operation of the air conditioner under an ultralow temperature working condition; in addition, the position and the size of the second heat exchanger can be set as required, so that the ice melting blind area is less and the ice melting effect is good; moreover, because the technical scheme that this embodiment provided utilizes the waste heat that the compressor during operation produced to carry out the heat transfer to the off-premises station chassis and melt ice, it is more energy-conserving, and user experience is good, the satisfaction is high.
Preferably, the apparatus further comprises:
temperature detecting means (not shown in the drawings) for detecting an outdoor ambient temperature and an outdoor unit chassis temperature;
the controller is specifically configured to determine whether to enter an ice melting mode according to the outdoor environment temperature and the outdoor unit chassis temperature, and control the first heat exchanger to absorb heat of the compressor when determining that the ice melting mode is entered.
It should be noted that the temperature detection device includes, but is not limited to: temperature sensors, temperature sensing bulbs, and the like.
Preferably, the controlling the first heat exchanger to absorb heat of the compressor specifically includes:
and in the heating mode, controlling the first heat exchanger to absorb the heat of the compressor.
The controller determines whether to enter an ice melting mode, including:
in the heating mode, if the outdoor environment temperature is less than or equal to a first preset temperature, entering an ice melting mode; and if the outdoor environment temperature is higher than a first preset temperature, the ice melting mode is not entered or exited.
Preferably, the first heat exchanger 1 is connected with an evaporator of an indoor unit;
a first electromagnetic valve 3 is arranged on a pipeline which is communicated with the evaporator through the first heat exchanger 1;
the controller is specifically configured to determine to enter a first ice-making mode when the outdoor environment temperature and the outdoor unit chassis temperature satisfy a first preset condition, and control the opening of the first solenoid valve in the first ice-making mode, so that a refrigerant of the evaporator flows into the first heat exchanger and then absorbs heat of the compressor housing.
Preferably, the first heat exchanger 1 is connected with a gas outlet of a compressor;
a second electromagnetic valve 4 is arranged on a pipeline which is communicated with the first heat exchanger 1 and the exhaust port of the compressor;
the controller is specifically configured to determine to enter a second ice mode when the outdoor environment temperature and the outdoor unit chassis temperature satisfy a second preset condition, and control the opening of the second solenoid valve in the second ice mode, so that the first heat exchanger absorbs heat of a high-temperature refrigerant discharged from an exhaust port of the compressor.
Preferably, the second heat exchanger is connected with the air inlet of the compressor through a gas-liquid separator.
It should be noted that the first preset condition is: the temperature of the outdoor unit chassis is between a second preset temperature and a third preset temperature;
the second preset condition is as follows: the temperature of the outdoor unit chassis is less than or equal to a second preset temperature;
it should be noted that the first preset temperature, the second preset temperature, and the third preset temperature are set according to historical experience values, or experimental data.
The second preset temperature is less than the third preset temperature and less than the first preset temperature.
The controller controls the first electromagnetic valve to be opened, or the controller controls the second electromagnetic valve to be opened, specifically:
if the temperature of the outdoor unit chassis is between a second preset temperature and a third preset temperature, controlling the first electromagnetic valve to be opened and the second electromagnetic valve to be closed, enabling a refrigerant flowing out of an evaporator of the indoor unit to enter the first heat exchanger, absorbing heat remained on a shell of the compressor, transmitting the heat to the second heat exchanger, exchanging heat and melting ice for the outdoor unit chassis, then entering a gas-liquid separator to perform gas-liquid separation, and returning to the compressor to work again;
and if the temperature of the outdoor unit chassis is less than or equal to a second preset temperature, controlling the first electromagnetic valve to be closed, controlling the second electromagnetic valve to be opened, and after entering the first heat exchanger, transmitting a high-temperature refrigerant discharged from an exhaust port of the compressor to the second heat exchanger to exchange heat and melt ice for the outdoor unit chassis, then entering a gas-liquid separator to perform gas-liquid separation, and returning to the compressor to work again.
Referring to fig. 1, if the outdoor unit chassis temperature is between the second preset temperature and the third preset temperature, the first solenoid valve is controlled to open and the second solenoid valve is controlled to close, and the specific flow direction of the refrigerant flowing out of the evaporator of the indoor unit is branch ① → branch ② → second heat exchanger → connecting pipe ③ → chassis heat exchanger → connecting pipe ④ → gas-liquid separator.
Referring to fig. 1, if the outdoor unit chassis temperature is equal to or lower than the second preset temperature, the second solenoid valve is controlled to open, the first solenoid valve is controlled to close, and the specific flow direction of the high-temperature refrigerant discharged from the discharge port of the compressor is branch ⑤ → branch ② → second heat exchanger → connecting pipe ③ → chassis heat exchanger → connecting pipe ④ → gas-liquid separator.
It can be understood that, the technical scheme that this embodiment provided utilizes compressor housing high temperature waste heat, carries out the heat transfer through first heat exchanger and second heat exchanger to the ice sheet on off-premises station chassis and heaies up, melts the ice sheet, when the waste heat is not enough, through detecting off-premises station chassis temperature, judges whether to get into degree of depth deicing mode, through controlling opening and close of first solenoid valve and second solenoid valve, circulates in leading-in heat exchanger of compressor gas vent exhaust high temperature high pressure refrigerant, reaches the purpose of normalizing the deicing.
Therefore, the technical scheme provided by the embodiment provides a solution for how to exchange heat and melt ice under the conditions of different outdoor environment temperatures and outdoor unit chassis temperatures, and is wide in application scene and multiple in user selection.
An outdoor unit according to an exemplary embodiment of the present invention includes:
the outdoor unit deicing device is provided.
It can be understood that, according to the technical scheme provided by this embodiment, since the first heat exchanger is wrapped around the compressor, after absorbing heat of the compressor, the heat can be transferred to the second heat exchanger to exchange heat with the chassis of the outdoor unit, thereby realizing automatic deicing of the outdoor unit, and ensuring continuous and stable heating operation of the air conditioner under an ultralow temperature working condition; in addition, the position and the size of the second heat exchanger can be set as required, so that the ice melting blind area is less and the ice melting effect is good; moreover, because the technical scheme that this embodiment provided utilizes the waste heat that the compressor during operation produced to carry out the heat transfer to the off-premises station chassis and melt ice, it is more energy-conserving, and user experience is good, the satisfaction is high.
Fig. 2 is a flow chart illustrating an outdoor deicing method according to an exemplary embodiment, as shown in fig. 2, the method comprising:
step S11, controlling a first heat exchanger to absorb heat of a compressor so that the first heat exchanger transfers the heat to a second heat exchanger to exchange heat for an outdoor unit chassis;
the first heat exchanger is wrapped on the periphery of the compressor and used for absorbing heat of the compressor;
the second heat exchanger is communicated with the first heat exchanger and arranged on the outdoor unit chassis.
It can be understood that, according to the technical scheme provided by this embodiment, since the first heat exchanger is wrapped around the compressor, after absorbing heat of the compressor, the heat can be transferred to the second heat exchanger to exchange heat with the chassis of the outdoor unit, thereby realizing automatic deicing of the outdoor unit, and ensuring continuous and stable heating operation of the air conditioner under an ultralow temperature working condition; in addition, the position and the size of the second heat exchanger can be set as required, so that the ice melting blind area is less and the ice melting effect is good; moreover, because the technical scheme that this embodiment provided utilizes the waste heat that the compressor during operation produced to carry out the heat transfer to the off-premises station chassis and melt ice, it is more energy-conserving, and user experience is good, the satisfaction is high.
Preferably, the method further comprises:
detecting the outdoor environment temperature and the outdoor machine chassis temperature;
the control of the first heat exchanger to absorb heat of the compressor specifically comprises the following steps:
and determining whether to enter an ice melting mode or not according to the outdoor environment temperature and the outdoor unit chassis temperature, and controlling the first heat exchanger to absorb the heat of the compressor when determining to enter the ice melting mode.
Preferably, the controlling the first heat exchanger to absorb heat of the compressor specifically includes:
and in the heating mode, controlling the first heat exchanger to absorb the heat of the compressor.
Preferably, the determining whether to enter the deicing mode specifically includes:
if the outdoor environment temperature is less than or equal to a first preset temperature, entering an ice melting mode;
and if the outdoor environment temperature is higher than a first preset temperature, the ice melting mode is not entered or exited.
The controller determines whether to enter an ice melting mode, including:
in the heating mode, if the outdoor environment temperature is less than or equal to a first preset temperature, entering an ice melting mode; and if the outdoor environment temperature is higher than a first preset temperature, the ice melting mode is not entered or exited.
Preferably, if the first heat exchanger is connected to an evaporator of an indoor unit, and a first solenoid valve is disposed on a pipeline communicating the first heat exchanger and the evaporator, the controlling the first heat exchanger to absorb heat of the compressor includes:
when the outdoor environment temperature and the outdoor unit chassis temperature meet a first preset condition, determining to enter a first ice-purifying mode, and controlling the first electromagnetic valve to open in the first ice-purifying mode, so that the refrigerant of the evaporator flows into the first heat exchanger and then absorbs the heat of the shell of the compressor.
Preferably, if the first heat exchanger is connected with the exhaust port of the compressor; a second electromagnetic valve is arranged on a pipeline which is communicated with the first heat exchanger and the exhaust port of the compressor; the controlling the first heat exchanger to absorb heat of the compressor includes:
and when the outdoor environment temperature and the outdoor unit chassis temperature meet a second preset condition, determining to enter a second ice mode, and controlling the second electromagnetic valve to open in the second ice mode so that the first heat exchanger absorbs the heat of the high-temperature refrigerant discharged from the exhaust port of the compressor.
Preferably, the second heat exchanger is connected with the air inlet of the compressor through a gas-liquid separator.
It should be noted that the first preset condition is: the temperature of the outdoor unit chassis is between a second preset temperature and a third preset temperature;
the second preset condition is as follows: the temperature of the outdoor unit chassis is less than or equal to a second preset temperature;
it should be noted that the first preset temperature, the second preset temperature, and the third preset temperature are set according to historical experience values, or experimental data.
The second preset temperature is less than the third preset temperature and less than the first preset temperature.
The controller controls the first electromagnetic valve to be opened, or the controller controls the second electromagnetic valve to be opened, specifically:
if the temperature of the outdoor unit chassis is between a second preset temperature and a third preset temperature, controlling the first electromagnetic valve to be opened and the second electromagnetic valve to be closed, enabling a refrigerant flowing out of an evaporator of the indoor unit to enter the first heat exchanger, absorbing heat remained on a shell of the compressor, transmitting the heat to the second heat exchanger, exchanging heat and melting ice for the outdoor unit chassis, then entering a gas-liquid separator to perform gas-liquid separation, and returning to the compressor to work again;
and if the temperature of the outdoor unit chassis is less than or equal to a second preset temperature, controlling the first electromagnetic valve to be closed, controlling the second electromagnetic valve to be opened, and after entering the first heat exchanger, transmitting a high-temperature refrigerant discharged from an exhaust port of the compressor to the second heat exchanger to exchange heat and melt ice for the outdoor unit chassis, then entering a gas-liquid separator to perform gas-liquid separation, and returning to the compressor to work again.
Referring to fig. 1, if the outdoor unit chassis temperature is between the second preset temperature and the third preset temperature, the first solenoid valve is controlled to open and the second solenoid valve is controlled to close, and the specific flow direction of the refrigerant flowing out of the evaporator of the indoor unit is branch ① → branch ② → second heat exchanger → connecting pipe ③ → chassis heat exchanger → connecting pipe ④ → gas-liquid separator.
Referring to fig. 1, if the outdoor unit chassis temperature is equal to or lower than the second preset temperature, the second solenoid valve is controlled to open, the first solenoid valve is controlled to close, and the specific flow direction of the high-temperature refrigerant discharged from the discharge port of the compressor is branch ⑤ → branch ② → second heat exchanger → connecting pipe ③ → chassis heat exchanger → connecting pipe ④ → gas-liquid separator.
An air conditioner according to an exemplary embodiment of the present invention is shown, including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
controlling a first heat exchanger to absorb heat of a compressor so that the first heat exchanger transfers the heat to a second heat exchanger to exchange heat for an outdoor unit chassis;
the first heat exchanger is wrapped on the periphery of the compressor and used for absorbing heat of the compressor;
the second heat exchanger is communicated with the first heat exchanger and arranged on the outdoor unit chassis.
It can be understood that, according to the technical scheme provided by this embodiment, since the first heat exchanger is wrapped around the compressor, after absorbing heat of the compressor, the heat can be transferred to the second heat exchanger to exchange heat with the chassis of the outdoor unit, thereby realizing automatic deicing of the outdoor unit, and ensuring continuous and stable heating operation of the air conditioner under an ultralow temperature working condition; in addition, the position and the size of the second heat exchanger can be set as required, so that the ice melting blind area is less and the ice melting effect is good; moreover, because the technical scheme that this embodiment provided utilizes the waste heat that the compressor during operation produced to carry out the heat transfer to the off-premises station chassis and melt ice, it is more energy-conserving, and user experience is good, the satisfaction is high.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present invention, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (15)
1. An outdoor deicing apparatus, comprising:
the first heat exchanger is wrapped on the periphery of the compressor and used for absorbing heat of the compressor;
the second heat exchanger is communicated with the first heat exchanger and arranged on the outdoor unit chassis;
and the controller is used for controlling the first heat exchanger to absorb the heat of the compressor so that the first heat exchanger transfers the heat to the second heat exchanger to exchange heat for the outdoor unit chassis.
2. The apparatus of claim 1, further comprising:
the temperature detection device is used for detecting the outdoor environment temperature and the outdoor machine chassis temperature;
the controller is specifically configured to determine whether to enter an ice melting mode according to the outdoor environment temperature and the outdoor unit chassis temperature, and control the first heat exchanger to absorb heat of the compressor when determining that the ice melting mode is entered.
3. The apparatus of claim 2,
the first heat exchanger is connected with an evaporator of the indoor unit;
a first electromagnetic valve is arranged on a pipeline for communicating the first heat exchanger with the evaporator;
the controller is specifically configured to determine to enter a first ice-making mode when the outdoor environment temperature and the outdoor unit chassis temperature satisfy a first preset condition, and control the opening of the first solenoid valve in the first ice-making mode, so that a refrigerant of the evaporator flows into the first heat exchanger and then absorbs heat of the compressor housing.
4. The apparatus of claim 2,
the first heat exchanger is connected with an exhaust port of the compressor;
a second electromagnetic valve is arranged on a pipeline which is communicated with the first heat exchanger and the exhaust port of the compressor;
the controller is specifically configured to determine to enter a second ice mode when the outdoor environment temperature and the outdoor unit chassis temperature satisfy a second preset condition, and control the opening of the second solenoid valve in the second ice mode, so that the first heat exchanger absorbs heat of a high-temperature refrigerant discharged from an exhaust port of the compressor.
5. The apparatus according to claim 3 or 4,
and the second heat exchanger is connected with the air inlet of the compressor through the gas-liquid separator.
6. The apparatus of claim 1,
the second heat exchanger is communicated with the first heat exchanger through a copper pipe.
7. The apparatus according to any one of claims 1 to 6,
the first heat exchanger and/or the second heat exchanger are/is a micro-channel heat exchanger.
8. An outdoor unit, comprising:
the outdoor unit deicing device according to any one of claims 1 to 7.
9. An outdoor deicing method is characterized in that,
controlling a first heat exchanger to absorb heat of a compressor so that the first heat exchanger transfers the heat to a second heat exchanger to exchange heat for an outdoor unit chassis;
the first heat exchanger is wrapped on the periphery of the compressor and used for absorbing heat of the compressor;
the second heat exchanger is communicated with the first heat exchanger and arranged on the outdoor unit chassis.
10. The method of claim 9, further comprising:
detecting the outdoor environment temperature and the outdoor machine chassis temperature;
the control of the first heat exchanger to absorb heat of the compressor specifically comprises the following steps:
and determining whether to enter an ice melting mode or not according to the outdoor environment temperature and the outdoor unit chassis temperature, and controlling the first heat exchanger to absorb the heat of the compressor when determining to enter the ice melting mode.
11. The method according to claim 10, wherein if the first heat exchanger is connected to an evaporator of an indoor unit, and a first solenoid valve is provided on a pipe of the first heat exchanger communicating with the evaporator, the controlling the first heat exchanger to absorb heat of a compressor comprises:
when the outdoor environment temperature and the outdoor unit chassis temperature meet a first preset condition, determining to enter a first ice-purifying mode, and controlling the first electromagnetic valve to open in the first ice-purifying mode, so that the refrigerant of the evaporator flows into the first heat exchanger and then absorbs the heat of the shell of the compressor.
12. The method of claim 10, wherein if the first heat exchanger is connected to a discharge of a compressor; a second electromagnetic valve is arranged on a pipeline which is communicated with the first heat exchanger and the exhaust port of the compressor; the controlling the first heat exchanger to absorb heat of the compressor includes:
and when the outdoor environment temperature and the outdoor unit chassis temperature meet a second preset condition, determining to enter a second ice mode, and controlling the second electromagnetic valve to open in the second ice mode so that the first heat exchanger absorbs the heat of the high-temperature refrigerant discharged from the exhaust port of the compressor.
13. The method according to claim 10, wherein the determining whether to enter the deicing mode specifically comprises:
if the outdoor environment temperature is less than or equal to a first preset temperature, entering an ice melting mode;
and if the outdoor environment temperature is higher than a first preset temperature, the ice melting mode is not entered or exited.
14. The method according to any one of claims 9 to 13, wherein the controlling the first heat exchanger to absorb heat of the compressor is specifically:
and in the heating mode, controlling the first heat exchanger to absorb the heat of the compressor.
15. An air conditioner, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
controlling a first heat exchanger to absorb heat of a compressor so that the first heat exchanger transfers the heat to a second heat exchanger to exchange heat for an outdoor unit chassis;
the first heat exchanger is wrapped on the periphery of the compressor and used for absorbing heat of the compressor;
the second heat exchanger is communicated with the first heat exchanger and arranged on the outdoor unit chassis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911166083.0A CN110925955B (en) | 2019-11-25 | 2019-11-25 | Outdoor unit deicing device, outdoor unit, air conditioner and deicing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911166083.0A CN110925955B (en) | 2019-11-25 | 2019-11-25 | Outdoor unit deicing device, outdoor unit, air conditioner and deicing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110925955A true CN110925955A (en) | 2020-03-27 |
| CN110925955B CN110925955B (en) | 2020-11-24 |
Family
ID=69851857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911166083.0A Active CN110925955B (en) | 2019-11-25 | 2019-11-25 | Outdoor unit deicing device, outdoor unit, air conditioner and deicing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110925955B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101173832A (en) * | 2006-10-30 | 2008-05-07 | 乐金电子(天津)电器有限公司 | Automatic ice-melting structure of outdoor machine of air-conditioner |
| CN201751757U (en) * | 2010-06-09 | 2011-02-23 | 海尔集团公司 | Outdoor unit chassis and air-conditioner outdoor unit |
| US8091372B1 (en) * | 2009-03-11 | 2012-01-10 | Mark Ekern | Heat pump defrost system |
| JP2017155961A (en) * | 2016-02-29 | 2017-09-07 | シャープ株式会社 | Heat pump device and air conditioner |
| CN107575953A (en) * | 2017-08-29 | 2018-01-12 | 珠海格力电器股份有限公司 | Air conditioner outdoor unit, air conditioner and control method of air conditioner outdoor unit |
| CN207230897U (en) * | 2017-07-26 | 2018-04-13 | 珠海格力电器股份有限公司 | Outdoor unit chassis and air conditioning system |
| CN110486996A (en) * | 2019-07-19 | 2019-11-22 | 青岛海尔空调器有限总公司 | Utilize the defrosting structure and Defrost method of compression case body heat content |
-
2019
- 2019-11-25 CN CN201911166083.0A patent/CN110925955B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101173832A (en) * | 2006-10-30 | 2008-05-07 | 乐金电子(天津)电器有限公司 | Automatic ice-melting structure of outdoor machine of air-conditioner |
| US8091372B1 (en) * | 2009-03-11 | 2012-01-10 | Mark Ekern | Heat pump defrost system |
| CN201751757U (en) * | 2010-06-09 | 2011-02-23 | 海尔集团公司 | Outdoor unit chassis and air-conditioner outdoor unit |
| JP2017155961A (en) * | 2016-02-29 | 2017-09-07 | シャープ株式会社 | Heat pump device and air conditioner |
| CN207230897U (en) * | 2017-07-26 | 2018-04-13 | 珠海格力电器股份有限公司 | Outdoor unit chassis and air conditioning system |
| CN107575953A (en) * | 2017-08-29 | 2018-01-12 | 珠海格力电器股份有限公司 | Air conditioner outdoor unit, air conditioner and control method of air conditioner outdoor unit |
| CN110486996A (en) * | 2019-07-19 | 2019-11-22 | 青岛海尔空调器有限总公司 | Utilize the defrosting structure and Defrost method of compression case body heat content |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110925955B (en) | 2020-11-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP4122726A1 (en) | Heat pump system for vehicle | |
| CN102529690B (en) | Temperature control system and method | |
| CN105683672B (en) | Air conditioning device | |
| CN104110907A (en) | Cooling-only air conditioner and cooling-heating air conditioner | |
| CN103900249B (en) | Instant heating type air energy heat pump water heater and its control method | |
| CN104101127A (en) | Multi-split air conditioning system and defrosting control method thereof | |
| EP2891849A1 (en) | Heat reclaim for a multifunction heat pump and a multifunction air conditioner | |
| CN109562674A (en) | Air conditioning control device, air conditioning control method | |
| CN104236155B (en) | Have that coolant is supercool, the defrosting air conditioning system of heat-production functions and control method thereof | |
| CN102331119A (en) | Air conditioner and defrosting control method thereof | |
| CN103939999B (en) | Double-refrigerant air conditioner system and control method thereof | |
| CN103900253A (en) | Instant air energy heat-pump water heater and control method thereof | |
| CN203478506U (en) | Cooling device for electronic control module of air conditioner outdoor unit | |
| CN101603701B (en) | Auxiliary heating method of air conditioner with auxiliary heating device | |
| CN110925955B (en) | Outdoor unit deicing device, outdoor unit, air conditioner and deicing method | |
| CN1523312B (en) | Multi-type air conditioner and method for controlling operation of the same | |
| CN110848884B (en) | Air conditioner, control method, control device and storage medium | |
| CN105180511A (en) | Split floor type air conditioner, refrigerant recycling method and refrigerant recycling device | |
| CN106247711A (en) | A kind of heat pump type air conditioner defrosting system and method | |
| CN113124513B (en) | Air conditioning system and control method thereof | |
| CN211926004U (en) | Air conditioner | |
| CN203313586U (en) | Heat dissipation apparatus of communication cabinet | |
| CN210624788U (en) | Air conditioning system | |
| CN203671991U (en) | Heat pump air conditioning system of blade electric vehicle | |
| CN113669964A (en) | Defrosting device and air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |