CN104896711A

CN104896711A - Automatic cleaning system, air conditioner and control method

Info

Publication number: CN104896711A
Application number: CN201510320843.4A
Authority: CN
Inventors: 王新利; 许永锋; 熊美兵; 冯明坤; 黄文�; 李�根
Original assignee: Midea Group Co Ltd; Guangdong Midea HVAC Equipment Co Ltd
Current assignee: Midea Group Co Ltd; Guangdong Midea HVAC Equipment Co Ltd
Priority date: 2015-06-11
Filing date: 2015-06-11
Publication date: 2015-09-09

Abstract

The invention provides an automatic cleaning system, an air conditioner and a control method. The automatic cleaning system comprises a water storing device of which the first end is connected to an indoor unit condensed water collector and an outdoor unit condensed water collector, a cleaning water pump of which one end is connected to the second end of the water storing device and while the other end is connected to an indoor unit water sprayer and an outdoor unit water sprayer, a first detecting module for detecting the first operation state parameters of an indoor heat exchanger, a second detection module for detecting the second operation state parameters of an outdoor heat exchanger, and a control module for determining whether to start the cleaning water pump to automatically clean the indoor heat exchanger and/ or the outdoor heat exchanger according to the first operation state parameters and/ or the second state parameters. According to the technical scheme, the system has the advantages that the heat exchangers can be automatically cleaned, so that the timeliness and efficiency of cleaning of the heat exchangers can be effectively improved, and as a result, the operation reliability of the air conditioner can be improved; in addition, the condensed water can be recycled, and thus the water resource can be saved.

Description

Automatic cleaning system, air-conditioner and control method

Technical field

The present invention relates to air-conditioning technical field, in particular to a kind of automatic cleaning system, a kind of air-conditioner and a kind of control method.

Background technology

Along with the development of air-conditioning technical, the features such as air-conditioning is energy-conservation with it, efficient and comfortable, known well by increasing people and use, but run because air-conditioner outdoor unit is exposed in outdoor environment throughout the year, dust storm dust etc. are more, in During Process of Long-term Operation, the dust of outdoor unit heat exchanger can because accumulation becomes many gradually, thus make windage increase, and causes return air amount to reduce; And air conditioner room unit is in During Process of Long-term Operation, the dust of return air screen pack also can become many because of accumulation gradually, thus windage is increased, and causes return air amount to reduce.Therefore, when air-conditioner refrigerating operaton, evaporation side air quantity reduces, then make liquid refrigerants not evaporate completely, unevaporated liquid refrigerants directly gets back to compressor, causes compressor to have the hidden danger of hydraulic compression; And when air conditioner heat-production runs, condensation side air quantity reduces, then make the refrigerant state of cooling be deteriorated, cause the compressor return air degree of superheat too high, delivery temperature is high, affects the compressor life-span.Visible, the stability that the dust stratification degree direct influence of indoor set heat exchanger and outdoor unit heat exchanger is run to air-conditioner, such as, has the heat exchanger of suitable vast scale in the market because can not get cleaning throughout the year, causes the reliability decrease of air-conditioning.And existing air-conditioner, be also often after air-conditioner breaks down and shuts down, maintenance personal just visits maintenance, and is all many times remove cleaning heat exchanger artificially, and not only efficiency is low, and the promptness of cleaning is also good not.

Therefore, how effectively to realize automatically cleaning the indoor set heat exchanger of air-conditioner and outdoor unit heat exchanger, ensure promptness and the high efficiency of cleaning, and then improve the stability of air-conditioner operation, extend the service life of compressor, and then lifting Consumer's Experience becomes technical problem urgently to be resolved hurrily simultaneously.

Summary of the invention

The present invention is intended at least to solve one of technical problem existed in prior art or correlation technique.

For this reason, one object of the present invention is to propose a kind of automatic cleaning system.

Another object of the present invention is to propose a kind of air-conditioner.

Another object of the present invention is to propose a kind of control method.

For realizing at least one object above-mentioned, the embodiment of first aspect present invention, propose a kind of automatic cleaning system, for air-conditioner, comprise: water receiver, the first end of described water receiver is connected to indoor set condensate collector and off-premises station condensate collector, for storing the condensed water of recovery; Flushing water pump, one end of described flushing water pump is connected to the second end of described water receiver, and the other end of described flushing water pump is connected to indoor set water jet and off-premises station water jet; Described indoor set water jet and described off-premises station water jet, clean indoor heat exchanger and the outdoor heat exchanger of described air-conditioner respectively for the condensed water received from described water receiver; First detection module, for detecting the first running state parameter of described indoor heat exchanger; Second detection module, for detecting the second running state parameter of described outdoor heat exchanger; Control module, for determining whether to send automatic purge signal to described flushing water pump according to described first running state parameter and/or described second state parameter, to determine whether that opening described flushing water pump cleans automatically to described indoor heat exchanger and/or described outdoor heat exchanger.

Automatic cleaning system according to an embodiment of the invention, water receiver first end connects indoor set condensate collector and off-premises station condensate collector, the water condensate storage that indoor set condensate collector and off-premises station condensate collector are collected can get up by this water receiver, achieve the recycling of condensed water, save water resource, reduce cost, wherein, second end of water receiver connects one end of flushing water pump, the other end of flushing water pump connects indoor set water jet and off-premises station water jet, condensed water in water receiver can be pumped in indoor set water jet and off-premises station water jet by this flushing water pump, and by indoor set water jet and off-premises station water jet, condensed water is sprayed onto on indoor set heat exchanger and outdoor unit heat exchanger respectively, realize to indoor heat exchanger and outdoor heat exchanger automatically and clean rapidly, wherein, indoor heat exchanger also arranges first detection module, for detecting the first running state parameter of indoor heat exchanger, outdoor heat exchanger also arranges the second detection module, for the second running state parameter of sensing chamber's external heat exchanger, this automatic cleaning system is also provided with control module, this control module judges the dust stratification degree of heat exchanger according to the first running state parameter and/or the second state parameter, thus determine whether that starting flushing water pump cleans automatically to indoor heat exchanger and/or outdoor heat exchanger, thus the cleaning efficiently in time realized indoor heat exchanger and outdoor heat exchanger, wherein, indoor set condensate collector, indoor set condensate collector, water receiver, flushing water pump, connected by water route between indoor set water jet and off-premises station water jet, and first detection module, second detection module and control module are electrical connection, by this technical scheme, not only achieve heat exchanger automatically to clean, thus avoid and clean heat exchanger artificially, but also avoid air-conditioner break down shut down after just heat exchanger carry out the situation of cleaning, effectively improve promptness and the efficiency of heat exchanger cleaning, and then improve air-conditioner reliability of operation and Consumer's Experience.

According to one embodiment of present invention, in technique scheme, preferably, described indoor set water jet and described off-premises station water jet are separately positioned on the top of described indoor heat exchanger and described outdoor heat exchanger.

Automatic cleaning system according to an embodiment of the invention, by indoor set water jet and off-premises station water jet being separately positioned on the top of indoor heat exchanger and outdoor heat exchanger, on the one hand, the effect of spraying and spraying is reached when water jet heat exchanger can be made to clean, make the cleaning of heat exchanger more comprehensive, on the other hand, can make to produce potential difference between heat exchanger and water jet, to improve the scouring force of water heat exchanger, the effect that further lifting is cleaned automatically, and then the stability improving air-conditioner operation.

According to one embodiment of present invention, in technique scheme, preferably, also comprise: condensate pump, one end of described condensate pump is connected to the described first end of described water receiver, the other end of described condensate pump is connected to described indoor set condensate collector and described off-premises station condensate collector, is delivered to described water receiver with the condensed water described indoor set condensate collector and described off-premises station condensate collector collected; Water level switch, is arranged on described water receiver, for detecting the height of water level of described water receiver; And described control module is also for the on off state that controls described condensate pump according to the testing result of described water level switch.

Automatic cleaning system according to an embodiment of the invention, one end of condensate pump is connected to the first end of water receiver, the other end connects indoor set condensate collector and off-premises station condensate collector, connected mode is that water route connects, to realize automatically the condensed water collected being transported in water receiver, achieving the recycling to the condensed water that air-conditioner produces in running, saved resource, providing favourable prerequisite guarantee for realizing carrying out cleaning automatically to heat exchanger of air conditioner simultaneously; In addition, by arranging the water level switch of the height of water level for detecting water receiver on water receiver, and this water level switch is electrically connected with control module, with the on off state making control module can control condensate pump according to the testing result of water level switch, and then the break-make of condensed water conveying in control water receiver, thus have enough and appropriate water in guarantee water receiver for cleaning indoor heat exchanger and outdoor heat exchanger, avoid causing potential safety hazard while improving the reliability of automatic cleaning system cleaning.

According to one embodiment of present invention, in technique scheme, preferably, draining valve, described draining valve is connected to the 3rd end of described water receiver; Outdoor environment sensor, for detecting outdoor environment temperature; Small pump, described small pump is connected to described second end of described water receiver; And described control module specifically for: when detecting that the first height of water level of described water receiver is more than or equal to the first preset water level height by described water level switch, control described condensate pump close or control described condensate pump work on and controls unlatching described draining valve; And when judging that the current environmental temperature detected by described outdoor environment sensor is less than preset temperature, controlling described draining valve and opening, to make the condensed water in described water receiver emptying; And before sending described automatic purge signal to described flushing water pump, when the second height of water level of the described water receiver detected by described water level switch is less than the second preset water level height, control to open described small pump.

Automatic cleaning system according to an embodiment of the invention, by arranging the draining valve be connected with water receiver water route, small pump, and the outdoor environment sensor to be electrically connected with control module, when the height of water level that can be implemented in water receiver is greater than preset value, by opening water discharge valve, the condensed water in water receiver is discharged, thus to prevent in water receiver condensed water due to excessive and overflow, particularly, when the first height of water level that water level switch detects in water receiver is more than or equal to the first preset water level height, control condensate pump by control module to close, namely fetch water in machine condensate collector and off-premises station condensate collector no longer indoor and be input in water receiver, or control condensate pump work on and control opening water discharge valve, water is discharged, flow into make the condensed water of water receiver and keep balancing with outflow, thus have enough and appropriate water in guarantee water receiver, avoid causing potential safety hazard simultaneously, to promote Consumer's Experience, when can also realize that the water yield is very few in water receiver, in water receiver, water is carried by opening small pump, thus have the water of q.s in guarantee water receiver for cleaning indoor heat exchanger and outdoor heat exchanger, particularly, by control module before sending described automatic purge signal to flushing water pump, and when the second height of water level that water level switch detects in water receiver is less than the second preset water level height, controls to open small pump, in water receiver, carry water, and can also realize can detecting outdoor environment temperature by outdoor environment sensor, and be less than preset temperature (such as in current environmental temperature, 0 DEG C) time, control draining valve by control module to open, make the condensed water in water receiver emptying, thus avoid at low ambient temperatures, by water receiver bursting by freezing, ensure the normal use of water receiver.

According to one embodiment of present invention, in technique scheme, preferably, the first magnetic valve, one end of described first magnetic valve is connected to described flushing water pump, and the other end of described first magnetic valve is connected to described indoor set water jet; Second magnetic valve, one end of described second magnetic valve is connected to described flushing water pump, and the other end of described second magnetic valve is connected to described off-premises station water jet; And described control module specifically for: when sending described automatic purge signal to described flushing water pump, control to open described first magnetic valve and/or described second magnetic valve, to clean described indoor heat exchanger and/or described outdoor heat exchanger.

Automatic cleaning system according to an embodiment of the invention, by at flushing water pump and indoor set water jet and arrange respectively between flushing water pump with off-premises station water jet and indoor set water jet and magnetic valve corresponding to off-premises station water jet, the cleaning of indoor heat exchanger and the cleaning of outdoor heat exchanger can be made to separate separately, make the cleaning of the cleaning of indoor heat exchanger and outdoor heat exchanger non-interference, be independent of each other, thus improve the flexibility of automatic cleaning system cleaning, and then improve Consumer's Experience, particularly: when only cleaning indoor heat exchanger, control module closes the second magnetic valve, flushing water pump is made to stop off-premises station water jet conveying water, thus off-premises station water jet cannot be cleaned outdoor heat exchanger, when only cleaning outdoor heat exchanger, control module closes the first magnetic valve, flushing water pump is stopped indoor set water jet conveying water, thus indoor set water jet cannot be cleaned indoor heat exchanger, when cleaning indoor heat exchanger and outdoor heat exchanger simultaneously, control module controls unlatching first magnetic valve and the second magnetic valve simultaneously.

According to one embodiment of present invention, in technique scheme, preferably, described control module concrete also for: in Preset Time, when described first running state parameter of judgement exceeds the first parameter threshold scope continuously and/or described second running state parameter exceeds the second parameter threshold scope continuously, control to send described automatic purge signal, automatically to clean described indoor heat exchanger and/or described outdoor heat exchanger to described flushing water pump; And after starting the automatic cleaning to described indoor heat exchanger and/or described outdoor heat exchanger, when judging that described first running state parameter belongs to described first parameter threshold scope and/or described second running state parameter belongs to described second parameter threshold scope, or when judgement reaches default scavenging period, control to close described flushing water pump.

Automatic cleaning system according to an embodiment of the invention, within the time of presetting, when judgement first running state parameter exceeds the first parameter threshold scope continuously and/or the second running state parameter exceeds the second parameter threshold scope continuously, namely when the dust stratification degree of heat exchanger reaches the degree needing cleaning, control module sends automatic purge signal to flushing water pump, automatically to clean indoor heat exchanger and/or outdoor heat exchanger, and after indoor heat exchanger and/or outdoor heat exchanger automatically clean and start, the first parameter threshold scope is belonged to and/or the second running state parameter belongs to the second parameter threshold scope at judgement first running state parameter, or when reaching predetermined scavenging period, when namely having cleaned, control module controls to close flushing water pump, so, not only achieve heat exchanger and carry out in time cleaning automatically efficiently, and can control when cleaning completes automatically to stop, avoid continuing cleaning and cause the waste of water, improve Consumer's Experience further.Preferred embodiment is as follows:

Embodiment (one):

First detection module and the second detection module are respectively differential pressure pickup, namely by arranging differential pressure pickup at indoor set heat exchanger and outdoor unit heat exchanger place, measure the pressure differential of heat exchanger both sides, due to when heat exchanger dust stratification is more serious, pressure reduction is larger, so can by the pressure reduction higher limit of setting heat exchanger at each wind shelves, such as, arranging higher limit be: the pressure reduction higher limit y by the pressure differential resetting that heat exchanger is measured in moderate dust stratification situation being current wind shelves, so, when off-premises station blower fan or indoor set blower fan are with in x shelves running, real-time detected pressures difference p (running state parameter), and compare with the pressure reduction higher limit of current operation windscreen, if continuously in n minute (Preset Time), p>y (x) detected always, then judge that heat exchanger dust stratification is serious, control module sends automatic purge signal to flushing water pump, flushing water pump is opened, water in water receiver is transported to water jet, be directly injected on heat exchanger by water jet, automatically clean, and when the pressure differential p that differential pressure pickup detects≤y (x) (parameter threshold scope) or scavenging period reach T minute (preset scavenging period) time, automatic cleaning command terminates, scavenging pump shuts down, complete automatic cleaning.

Embodiment (two):

First detection module and the second detection module are respectively air velocity transducer, namely by indoor set heat exchanger and the more stable place of outdoor unit heat exchanger wind field wind speed, arrange air velocity transducer, measure the wind speed of heat exchanger surfaces externally and internally, Real-time Collection blower fan wind speed, air-conditioner sets the wind speed zone of reasonableness of each wind shelves in advance, such as, arranging lower limit is: the lower voltage limit in air-conditioner sales territory power-supply fluctuation scope, and heat exchanger is in moderate dust stratification situation, measured wind speed can be set as the wind speed lower limit V1m/s of current wind shelves, arranging higher limit is: the upper voltage limit in air-conditioner sales territory power-supply fluctuation scope, and heat exchanger does not have dust stratification, and measured wind speed can be set as the upper wind velocity limit value V2m/s of current wind shelves, so, when off-premises station blower fan or indoor set blower fan are with in x shelves running, real-time detection wind speed y (running state parameter), and compare with the zone of reasonableness of current operation windscreen, if within t minute, y<V1 (t) detected in (Preset Time) continuously always, then judge that this heat exchanger dust stratification is serious, need to clean, control module sends automatic purge signal to flushing water pump, flushing water pump is opened, water in water receiver is transported to water jet, be directly injected on heat exchanger by water jet, automatically clean, and when wind speed y>V1 (t) that air velocity transducer detects (parameter threshold scope) or scavenging period reach T minute (preset scavenging period) time, automatic cleaning command terminates, scavenging pump shuts down, complete automatic cleaning, and if V1 (t) <y<V2 (t) detected, or there is y<V1 (t) or y>V2 (t) in discontinuity, then judge that heat exchanger of air conditioner normally runs, heat exchanger dust stratification is not serious, without the need to cleaning.

According to one embodiment of present invention, in technique scheme, preferably, described control module, described water receiver, described flushing water pump, described condensate pump, described small pump, described draining valve, described first magnetic valve and described second magnetic valve are arranged in air-conditioner outdoor unit, to avoid too much taking the interior space, and then promote Consumer's Experience.

Second aspect present invention embodiment, proposes a kind of air-conditioner, comprise above-mentioned according to any one of automatic cleaning system.

Air-conditioner according to an embodiment of the invention, has the automatic cleaning system that first aspect present invention any embodiment provides, and therefore this air-conditioner has whole beneficial effects of the automatic cleaning system that above-mentioned any embodiment provides.

Third aspect present invention embodiment, propose a kind of control method, for air-conditioner, control above-mentioned according to any one of automatic cleaning system work, this control method comprises: described first running state parameter being detected described indoor heat exchanger by described first detection module, and is detected the second running state parameter of described outdoor heat exchanger by described second detection module; Judge in Preset Time by described control module, described first running state parameter whether exceeds the first parameter threshold scope continuously and/or whether described second running state parameter exceeds the second parameter threshold scope continuously; When being judged to be, control to open described flushing water pump by described control module, by described indoor set water jet and/or described off-premises station water jet, the described indoor heat exchanger of described air-conditioner and/or described outdoor heat exchanger are cleaned automatically to make the condensed water in described water receiver.

Control method according to an embodiment of the invention, when in Preset Time, judge that the first running state parameter being detected indoor heat exchanger by first detection module exceeds the first parameter threshold scope continuously, and/or when exceeding the second parameter threshold scope continuously by the second running state parameter of the second detection module sensing chamber external heat exchanger, namely when the dust stratification degree of heat exchanger reaches the degree needing cleaning, control to open flushing water pump by control module, the condensed water in water receiver is made to realize the automatic cleaning to indoor heat exchanger and/or outdoor heat exchanger by indoor water jet and/or outdoor water jet, so, not only achieve heat exchanger automatically to clean, thus avoid and clean heat exchanger artificially, but also avoid air-conditioner break down shut down after just heat exchanger carry out the situation of cleaning, effectively improve promptness and the efficiency of heat exchanger cleaning, and then improve air-conditioner reliability of operation and Consumer's Experience.Preferred embodiment is as follows:

Embodiment (one):

First detection module and the second detection module are respectively differential pressure pickup, namely by arranging differential pressure pickup at indoor set heat exchanger and outdoor unit heat exchanger place, measure the pressure differential of heat exchanger both sides, due to when heat exchanger dust stratification is more serious, pressure reduction is larger, so can by the pressure reduction higher limit of setting heat exchanger at each wind shelves, such as, arranging higher limit be: the pressure reduction higher limit y by the pressure differential resetting that heat exchanger is measured in moderate dust stratification situation being current wind shelves; So, when off-premises station blower fan or indoor set blower fan are with in x shelves running, real-time detected pressures difference p (running state parameter), and compare with the pressure reduction higher limit of current operation windscreen, if continuously in n minute (Preset Time), p>y (x) detected always, then judge that heat exchanger dust stratification is serious, control module sends automatic purge signal to flushing water pump, flushing water pump is opened, water in water receiver is transported to water jet, is directly injected on heat exchanger by water jet, automatically cleans.

Embodiment (two):

First detection module and the second detection module are respectively air velocity transducer, namely by indoor set heat exchanger and the more stable place of outdoor unit heat exchanger wind field wind speed, arrange air velocity transducer, measure the wind speed of heat exchanger surfaces externally and internally, Real-time Collection blower fan wind speed, air-conditioner sets the wind speed zone of reasonableness of each wind shelves in advance, such as, arranging lower limit is: the lower voltage limit in air-conditioner sales territory power-supply fluctuation scope, and heat exchanger is in moderate dust stratification situation, measured wind speed can be set as the wind speed lower limit V1m/s of current wind shelves, arranging higher limit is: the upper voltage limit in air-conditioner sales territory power-supply fluctuation scope, and heat exchanger does not have dust stratification, and measured wind speed can be set as the upper wind velocity limit value V2m/s of current wind shelves, so, when off-premises station blower fan or indoor set blower fan are with in x shelves running, real-time detection wind speed y (running state parameter), and compare with the zone of reasonableness of current operation windscreen, if within t minute, y<V1 (t) detected in (Preset Time) continuously always, then judge that this heat exchanger dust stratification is serious, need to clean, control module sends automatic purge signal to flushing water pump, flushing water pump is opened, water in water receiver is transported to water jet, be directly injected on heat exchanger by water jet, automatically clean, and if V1 (t) <y<V2 (t) detected, or there is y<V1 (t) or y>V2 (t) in discontinuity, then judge that heat exchanger of air conditioner normally runs, heat exchanger dust stratification is not serious, without the need to cleaning.

According to one embodiment of present invention, in technique scheme, preferably, after starting the automatic cleaning to described indoor heat exchanger and/or described outdoor heat exchanger, when judging that described first running state parameter belongs to described first parameter threshold scope and/or described second running state parameter belongs to described second parameter threshold scope, or when judgement reaches default scavenging period, control to close described flushing water pump by described control module.

Control method according to an embodiment of the invention, after cleaning starts automatically, when the first running state parameter belongs to the first parameter threshold scope and/or the second running state parameter belongs to the second parameter threshold scope, or when reaching predetermined scavenging period, control module controls to close flushing water pump, stop the cleaning to indoor heat exchanger and/or outdoor heat exchanger, so, automatically flushing water pump can be closed after cleaning completes, thus can ensure that heat exchanger cleaning simultaneously completely, avoid continuing cleaning and cause the waste of water, improve the efficiency of cleaning.Preferred embodiment is as follows:

Embodiment (one):

When the pressure differential p that differential pressure pickup detects≤y (x) (parameter threshold scope) or scavenging period reach T minute (preset scavenging period) time, automatic cleaning command terminates, and scavenging pump shuts down, and completes automatic cleaning.

Embodiment (two):

When wind speed y>V1 (t) that air velocity transducer detects (parameter threshold scope) or scavenging period reach T minute (preset scavenging period) time, automatic cleaning command terminates, scavenging pump shuts down, and completes automatic cleaning.

According to one embodiment of present invention, in technique scheme, preferably, also comprise: the first height of water level being detected described water receiver by the water level switch of described air-conditioner; Judge whether described first height of water level is more than or equal to the first preset water level height by described control module; When being judged to be, controlling described water receiver by described control module and stopping collecting condensed water or controlling to carry out draining while described water receiver collects condensed water; And before starting the automatic cleaning to described indoor heat exchanger and/or described outdoor heat exchanger, also comprise: judge whether the second height of water level detected by described water level switch is less than the second preset water level height by described control module; When being judged to be, the small pump controlling to start described air-conditioner by described control module carries out moisturizing to described water receiver, otherwise, control to start described flushing water pump by described control module.

Control method according to an embodiment of the invention, when the first height of water level of the water receiver that water level switch detects is more than or equal to the first preset water level height, control water receiver by control module to stop collecting condensed water or controlling to carry out draining while water receiver collects condensed water, the water in water receiver can be made appropriate, to prevent in water receiver water due to excessive and overflow, and then affect the use of air-conditioner; And before cleaning starts automatically, when the second height of water level that water level switch detects is less than the second preset water level height, control to open small pump by control module and moisturizing is carried out to water receiver, can ensure there is the water of q.s in water receiver for cleaning indoor heat exchanger and outdoor heat exchanger, thus ensure that the reliability to indoor heat exchanger and outdoor heat exchanger cleaning, and then ensure that air-conditioner reliability of operation.

According to one embodiment of present invention, in technique scheme, preferably, also comprise: detect current environmental temperature by the outdoor environment sensor of described air-conditioner; Judge whether described current environmental temperature is less than preset temperature by described control module; When being judged to be, open the draining valve of described air-conditioner by emptying for the condensed water in described water receiver by described control module control.

Control method according to an embodiment of the invention, current environmental temperature can be detected by the outdoor environment sensor of air-conditioner, preset temperature is less than (such as in current environmental temperature, 0 DEG C) time, the draining valve of air-conditioner is opened by emptying for the condensed water in water receiver by control module control, can avoid at low ambient temperatures, by water receiver bursting by freezing, ensure the normal use of water receiver.

Additional aspect of the present invention and advantage provide in description part below, and part will become obvious from the following description, or be recognized by practice of the present invention.

Detailed description of the invention

In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.

Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.

Fig. 1 shows the block diagram of automatic cleaning system according to an embodiment of the invention.

As shown in Figure 1, automatic cleaning system 100 according to an embodiment of the invention, for air-conditioner, comprising: water receiver 102, the first end of described water receiver 102 is connected to indoor set condensate collector 104 and off-premises station condensate collector 106, for storing the condensed water of recovery; Flushing water pump 108, one end of described flushing water pump 108 is connected to the second end of described water receiver 102, and the other end of described flushing water pump 108 is connected to indoor set water jet 110 and off-premises station water jet 112; Described indoor set water jet 110 and described off-premises station water jet 112, clean indoor heat exchanger and the outdoor heat exchanger of described air-conditioner respectively for the condensed water received from described water receiver 102; First detection module 114, for detecting the first running state parameter of described indoor heat exchanger; Second detection module 116, for detecting the second running state parameter of described outdoor heat exchanger; Control module 118, for determining whether to send automatic purge signal to described flushing water pump 108 according to described first running state parameter and/or described second state parameter, to determine whether that opening described flushing water pump 108 cleans automatically to described indoor heat exchanger and/or described outdoor heat exchanger.

Automatic cleaning system 100 according to an embodiment of the invention, water receiver 102 first end connects indoor set condensate collector 104 and off-premises station condensate collector 106, the water condensate storage that indoor set condensate collector 104 and off-premises station condensate collector 106 can be collected by this water receiver 102, achieve the recycling of condensed water, save water resource, reduce cost, wherein, second end of water receiver 102 connects one end of flushing water pump 108, the other end of flushing water pump 108 connects indoor set water jet 110 and off-premises station water jet 112, condensate pump 120 in water receiver 102 can enter in indoor set water jet 110 and off-premises station water jet 112 by this flushing water pump 108, and by indoor set water jet 110 and off-premises station water jet 112, condensed water is sprayed onto on indoor set heat exchanger and outdoor unit heat exchanger respectively, realize to indoor heat exchanger and outdoor heat exchanger automatically and clean rapidly, wherein, indoor heat exchanger also arranges first detection module 114, for detecting the first running state parameter of indoor heat exchanger, outdoor heat exchanger is also arranged the second detection module 116, for the second running state parameter of sensing chamber's external heat exchanger, this automatic cleaning system is also provided with control module 118, this control module 118 judges the dust stratification degree of heat exchanger according to the first running state parameter and/or the second state parameter, thus determine whether that startup flushing water pump 108 flushing water pump 108 pairs of indoor heat exchangers and/or outdoor heat exchanger clean automatically, thus the cleaning efficiently in time realized indoor heat exchanger and outdoor heat exchanger, wherein, indoor set condensate collector 104, indoor set condensate collector 104, water receiver 102, flushing water pump 108, connected by water route between indoor set water jet 110 and off-premises station water jet 112, and first detection module 114, second detection module 116 and control module 118 are electrical connection, by this technical scheme, not only achieve heat exchanger automatically to clean, thus avoid and clean heat exchanger artificially, but also avoid air-conditioner break down shut down after just heat exchanger carry out the situation of cleaning, effectively improve promptness and the efficiency of heat exchanger cleaning, and then improve air-conditioner reliability of operation and Consumer's Experience.

According to one embodiment of present invention, in technique scheme, preferably, described indoor set water jet 110 and described off-premises station water jet 112 are separately positioned on the top of described indoor heat exchanger and described outdoor heat exchanger.

Automatic cleaning system 100 according to an embodiment of the invention, by indoor set water jet 110 and off-premises station water jet 112 being separately positioned on the top of indoor heat exchanger and outdoor heat exchanger, on the one hand, the effect of spraying and spraying is reached when water jet heat exchanger can be made to clean, make the cleaning of heat exchanger more comprehensive, on the other hand, can make to produce potential difference between heat exchanger and water jet, to improve the scouring force of water heat exchanger, the effect that further lifting is cleaned automatically, and then the stability improving air-conditioner operation.

According to one embodiment of present invention, in technique scheme, preferably, also comprise: condensate pump 120, one end of described condensate pump 120 is connected to the described first end of described water receiver 102, the other end of described condensate pump 120 is connected to described indoor set condensate collector 104 and described off-premises station condensate collector 106, is delivered to described water receiver 102 with the condensed water described indoor set condensate collector 104 and described off-premises station condensate collector 106 collected; Water level switch 122, is arranged on described water receiver 102, for detecting the height of water level of described water receiver 102; And described control module 118 is also for the on off state that controls described condensate pump 120 according to the testing result of described water level switch 122.

Automatic cleaning system 100 according to an embodiment of the invention, one end of condensate pump 120 is connected to the first end of water receiver 102, the other end connects indoor set condensate collector 104 and off-premises station condensate collector 106, connected mode is that water route connects, to realize automatically the condensed water collected being transported in water receiver 102, achieve the recycling to the condensed water that air-conditioner produces in running, saving resource, having provided favourable prerequisite guarantee for realizing carrying out cleaning automatically to heat exchanger of air conditioner simultaneously, in addition, by arranging the water level switch 122 of the height of water level for detecting water receiver 102 on water receiver 102, and this water level switch 122 is electrically connected with control module 118, water level switch 122 water receiver 102 is with the on off state making control module 118 can control condensate pump 120 according to the testing result of water level switch 122, and then control the break-make of condensed water conveying in water receiver 102, thus ensure there is enough and appropriate water in water receiver 102 for cleaning indoor heat exchanger and outdoor heat exchanger, avoid causing potential safety hazard while improving the reliability of automatic cleaning system cleaning.Water level switch 122 water receiver 102 control module 118 condensate pump 120 water receiver 102 water receiver 102 water level switch 122 water receiver 102 control module 118 condensate pump 120 water receiver 102 water receiver 102

According to one embodiment of present invention, in technique scheme, preferably, draining valve 124, described draining valve 124 is connected to the 3rd end of described water receiver 102; Outdoor environment sensor 126, for detecting outdoor environment temperature; Small pump 128, described small pump 128 is connected to described second end of described water receiver 102; And described control module 118 specifically for: when detecting that the first height of water level of described water receiver 102 is more than or equal to the first preset water level height by described water level switch 122, control described condensate pump 120 close or control described condensate pump 120 work on and control open described draining valve 124; And when judging that the current environmental temperature detected by described outdoor environment sensor 126 is less than preset temperature, controlling described draining valve 124 and opening, to make the condensed water in described water receiver 102 emptying; And before sending described automatic purge signal to described flushing water pump 108, when the second height of water level of the described water receiver 102 detected by described water level switch 122 is less than the second preset water level height, control to open described small pump 128.

Automatic cleaning system 100 according to an embodiment of the invention, by arranging draining valve 124 water receiver 102 be connected with water receiver 102 water route, small pump 128 water receiver 102, and the outdoor environment sensor 126 to be electrically connected with control module 118, when draining valve 124 height of water level that can be implemented in water receiver 102 is greater than preset value, by opening water discharge valve 124, the condensed water in water receiver 102 is discharged, thus to prevent in water receiver 102 condensed water due to excessive and overflow, particularly, when the first height of water level that water level switch 122 detects in water receiver 102 is more than or equal to the first preset water level height, control condensate pump 120 by control module 118 to close, namely fetch water in machine condensate collector 104 and off-premises station condensate collector 106 no longer indoor and be input in water receiver 102, or control condensate pump 120 work on and control opening water discharge valve 124, water is discharged, flow into make the condensed water of water receiver 102 and keep balancing with outflow, thus ensure there is enough and appropriate water in water receiver 102, avoid causing potential safety hazard simultaneously, to promote Consumer's Experience, when can also realize small pump 128 water yield is very few in water receiver 102, in water receiver 102, water is carried by opening small pump 128, thus ensure there is the water of q.s in water receiver 102 for cleaning indoor heat exchanger and outdoor heat exchanger, particularly, by control module 118 before sending described automatic purge signal to flushing water pump 108, and when the second height of water level that water level switch 122 detects in water receiver 102 is less than the second preset water level height, control module 118 controls to open small pump 128, in water receiver 102, carry water, and can also realize can detecting outdoor environment temperature by outdoor environment sensor 126, and be less than preset temperature (such as in current environmental temperature, 0 DEG C) time, control draining valve 124 by control module 118 to open, make the condensed water in water receiver 102 emptying, thus avoid at low ambient temperatures, by water receiver 102 bursting by freezing, ensure the normal use of water receiver 102.

According to one embodiment of present invention, in technique scheme, preferably, the first magnetic valve 130, one end of described first magnetic valve 130 is connected to described flushing water pump 108, and the other end of described first magnetic valve 130 is connected to described indoor set water jet 110; Second magnetic valve 132, one end of described second magnetic valve 132 is connected to described flushing water pump 108, and the other end of described second magnetic valve 132 is connected to described off-premises station water jet 112; And described control module 118 specifically for: when sending described automatic purge signal to described flushing water pump 108, control to open described first magnetic valve 130 and/or described second magnetic valve 132, to clean described indoor heat exchanger and/or described outdoor heat exchanger.

Automatic cleaning system 100 according to an embodiment of the invention, by at flushing water pump 108 and indoor set water jet 110 and arrange respectively between flushing water pump 108 with off-premises station water jet 112 and indoor set water jet 110 and magnetic valve first magnetic valve 130 flushing water pump 108 indoor set water jet 110 second magnetic valve 132 flushing water pump 108 off-premises station water jet 112 first magnetic valve 130 second magnetic valve 132 corresponding to off-premises station water jet 112, the cleaning of indoor heat exchanger and the cleaning of outdoor heat exchanger can be made to separate separately, make the cleaning of the cleaning of indoor heat exchanger and outdoor heat exchanger non-interference, be independent of each other, thus improve the flexibility of automatic cleaning system cleaning, and then improve Consumer's Experience, particularly: when only cleaning indoor heat exchanger, control module 118 closes the second magnetic valve 132, flushing water pump 108 is made to stop carrying water to off-premises station water jet 112, thus off-premises station water jet 112 cannot be cleaned outdoor heat exchanger, when only cleaning outdoor heat exchanger, control module 118 closes the first magnetic valve 130, makes flushing water pump 108 stop carrying water to indoor set water jet 110, thus indoor set water jet 110 cannot be cleaned indoor heat exchanger, when cleaning indoor heat exchanger and outdoor heat exchanger simultaneously, control module 118 controls unlatching first magnetic valve 130 and the second magnetic valve 132 simultaneously.

According to one embodiment of present invention, in technique scheme, preferably, described control module 118 concrete also for: in Preset Time, when described first running state parameter of judgement exceeds the first parameter threshold scope continuously and/or described second running state parameter exceeds the second parameter threshold scope continuously, control to send described automatic purge signal to described flushing water pump 108, automatically to clean described indoor heat exchanger and/or described outdoor heat exchanger; And after starting the automatic cleaning to described indoor heat exchanger and/or described outdoor heat exchanger, when judging that described first running state parameter belongs to described first parameter threshold scope and/or described second running state parameter belongs to described second parameter threshold scope, or when judgement reaches default scavenging period, control to close described flushing water pump 108.

Automatic cleaning system 100 according to an embodiment of the invention, within the time of presetting, when judgement first running state parameter exceeds the first parameter threshold scope continuously and/or the second running state parameter exceeds the second parameter threshold scope continuously, namely when the dust stratification degree of heat exchanger reaches the degree needing cleaning, control module 118 sends automatic purge signal to flushing water pump 108, automatically to clean indoor heat exchanger and/or outdoor heat exchanger, and after indoor heat exchanger and/or outdoor heat exchanger automatically clean and start, the first parameter threshold scope is belonged to and/or the second running state parameter belongs to the second parameter threshold scope at judgement first running state parameter, or when reaching predetermined scavenging period, when namely having cleaned, control module 118 controls to close flushing water pump 108, so, not only achieve heat exchanger and carry out in time cleaning automatically efficiently, control module 118 also can control when cleaning completes automatically to stop, avoid continuing cleaning and cause the waste of water, improve Consumer's Experience further.Preferred embodiment is as follows:

Embodiment (one):

First detection module 114 and the second detection module 116 are respectively differential pressure pickup, namely by arranging differential pressure pickup at indoor set heat exchanger and outdoor unit heat exchanger place, measure the pressure differential of heat exchanger both sides, due to when heat exchanger dust stratification is more serious, pressure reduction is larger, so can by the pressure reduction higher limit of setting heat exchanger at each wind shelves, such as, arranging higher limit be: the pressure reduction higher limit y by the pressure differential resetting that heat exchanger is measured in moderate dust stratification situation being current wind shelves, so, when off-premises station blower fan or indoor set blower fan are with in x shelves running, real-time detected pressures difference p (running state parameter), and compare with the pressure reduction higher limit of current operation windscreen, if continuously in n minute (Preset Time), p>y (x) detected always, then judge that heat exchanger dust stratification is serious, control module 118 sends automatic purge signal to flushing water pump 108, flushing water pump 108 is opened, water in water receiver 102 is transported to water jet, be directly injected on heat exchanger by water jet, automatically clean, and when the pressure differential p that differential pressure pickup detects≤y (x) (parameter threshold scope) or scavenging period reach T minute (preset scavenging period) time, automatic cleaning command terminates, scavenging pump shuts down, complete automatic cleaning.

Embodiment (two):

First detection module 114 and the second detection module 116 are respectively air velocity transducer, namely by indoor set heat exchanger and the more stable place of outdoor unit heat exchanger wind field wind speed, arrange air velocity transducer, measure the wind speed of heat exchanger surfaces externally and internally, Real-time Collection blower fan wind speed, air-conditioner sets the wind speed zone of reasonableness of each wind shelves in advance, such as, arranging lower limit is: the lower voltage limit in air-conditioner sales territory power-supply fluctuation scope, and heat exchanger is in moderate dust stratification situation, measured wind speed can be set as the wind speed lower limit V1m/s of current wind shelves, arranging higher limit is: the upper voltage limit in air-conditioner sales territory power-supply fluctuation scope, and heat exchanger does not have dust stratification, and measured wind speed can be set as the upper wind velocity limit value V2m/s of current wind shelves, so, when off-premises station blower fan or indoor set blower fan are with in x shelves running, real-time detection wind speed y (running state parameter), and compare with the zone of reasonableness of current operation windscreen, if within t minute, y<V1 (t) detected in (Preset Time) continuously always, then judge that this heat exchanger dust stratification is serious, need to clean, control module 118 sends automatic purge signal to flushing water pump 108, flushing water pump 108 is opened, water in water receiver 102 is transported to water jet, be directly injected on heat exchanger by water jet, automatically clean, and when wind speed y>V1 (t) that air velocity transducer detects (parameter threshold scope) or scavenging period reach T minute (preset scavenging period) time, automatic cleaning command terminates, scavenging pump shuts down, complete automatic cleaning, and if V1 (t) <y<V2 (t) detected, or there is y<V1 (t) or y>V2 (t) in discontinuity, then judge that heat exchanger of air conditioner normally runs, heat exchanger dust stratification is not serious, without the need to cleaning.

According to one embodiment of present invention, in technique scheme, preferably, described control module 118, described water receiver 102, described flushing water pump 108, described condensate pump 120, described small pump 128, described draining valve 124, described first magnetic valve 130 and described second magnetic valve 132 are arranged in air-conditioner outdoor unit, to avoid too much taking the interior space, and then promote Consumer's Experience.

Fig. 2 shows the block diagram of air-conditioner according to an embodiment of the invention.

As shown in Figure 2, air-conditioner 200 according to an embodiment of the invention, comprise above-mentioned according to any one of automatic cleaning system 100.

Air-conditioner 200 according to an embodiment of the invention, has the automatic cleaning system 100 that first aspect present invention any embodiment provides, and therefore this air-conditioner 200 has whole beneficial effects of the automatic cleaning system 100 that above-mentioned any embodiment provides.

Fig. 3 shows control method according to an embodiment of the invention.

As shown in Figure 3, control method according to an embodiment of the invention, for air-conditioner, control above-mentioned according to any one of automatic cleaning system work, this control method comprises: step 302, detected described first running state parameter of described indoor heat exchanger by described first detection module, and detected the second running state parameter of described outdoor heat exchanger by described second detection module; Step 304, judges in Preset Time by described control module, and described first running state parameter whether exceeds the first parameter threshold scope continuously and/or whether described second running state parameter exceeds the second parameter threshold scope continuously; Step 306, when being judged to be, control to open described flushing water pump by described control module, by described indoor set water jet and/or described off-premises station water jet, the described indoor heat exchanger of described air-conditioner and/or described outdoor heat exchanger are cleaned automatically to make the condensed water in described water receiver.

Embodiment (one):

Embodiment (two):

Embodiment (one):

Embodiment (two):

Fig. 4 shows the structural representation of automatic cleaning system according to an embodiment of the invention.

As shown in Figure 4, automatic cleaning system according to an embodiment of the invention, comprising: first detection module 401, second detection module 402, control module 403, flushing water pump 404, water receiver 405, indoor heat exchanger water jet 406, outdoor heat exchanger water jet 407, indoor set condensate collector 408, off-premises station condensate collector 409, condensate pump 410, indoor set heat exchanger 411, outdoor unit heat exchanger 412, small pump 413, draining valve 414, water level switch 415, off-premises station ambient temperature sensor 416, first magnetic valve 417, second magnetic valve 418, wherein, first detection module 401, second detection module 402, water level switch 415, off-premises station ambient temperature sensor 416 is electrically connected with control module 403, and flushing water pump 404, water receiver 405, indoor heat exchanger water jet 406, outdoor heat exchanger water jet 407, indoor set condensate collector 408, off-premises station condensate collector 409, condensate pump 410, small pump 413, draining valve 414, water level switch 415, first magnetic valve 417 is with the second magnetic valve 418 for water route is connected, and each critical component is all concentrated and is positioned in off-premises station.

The condensed water that indoor set condensate collector 408 and off-premises station condensate collector 409 produce in running for collecting air-conditioner unit, is transported in water receiver 405 by condensate pump 410.And, when the condensed water in water receiver 405 is not enough, moisturizing can be carried out by opening small pump 413, and when too much, by opening water discharge valve 414 draining, wherein, by being arranged on the water level switch 415 sensed water level height on water receiver 405, in condensation water collection process, when detecting that the water level H1 in water receiver 405 is more than or equal to designated water level S1 (the first preset water level height), i.e. H1 >=S1, condensate pump 410 is out of service, or condensate pump 410 continues to run, and draining valve 414 is opened, when water receiver 405 middle water level H1 is less than designated water level S1, i.e. H1<S1, condensed water can be collected always, and when control module 403 detects that heat exchanger needs automatically to clean, first the water level in water receiver 405 is judged, when water receiver 405 middle water level H2 (the second height of water level) is less than designated water level S2 (the second preset water level height), i.e. H2<S2, small pump 413 is opened.When water receiver 405 middle water level H2 is more than or equal to designated water level S2, i.e. H2 >=S2, small pump 413 is out of service; And the temperature information that control module 403 moment monitoring outdoor environment temperature sensor 417 (outdoor environment sensor) feeds back, when outdoor environment temperature is less than 0 DEG C (preset temperature), send order, opening water discharge valve 414, water in water receiver 405 is all emptying, to prevent at low ambient temperatures, by water receiver 405 bursting by freezing, and, only when control module 403 receives the order needing to carry out heat exchanger cleaning, just small pump 413 is opened, make the water level in water receiver 405 reach setting value, then enter and automatically clean operation.

Embodiment (one):

First detection module 401 and the second detection module 402 are respectively differential pressure pickup, namely by arranging differential pressure pickup at indoor set heat exchanger 411 and outdoor unit heat exchanger 412 place, measure the pressure differential of heat exchanger both sides, due to when heat exchanger dust stratification is more serious, pressure reduction is larger, so can by the pressure reduction higher limit of setting heat exchanger at each wind shelves, such as, arranging higher limit be: the pressure reduction higher limit y by the pressure differential resetting that heat exchanger is measured in moderate dust stratification situation being current wind shelves, so, when off-premises station blower fan or indoor set blower fan are with in x shelves running, real-time detected pressures difference p (running state parameter), and compare with the pressure reduction higher limit of current operation windscreen, if continuously in n minute (Preset Time), p>y (x) detected always, then judge that heat exchanger dust stratification is serious, control module 403 sends automatic purge signal to flushing water pump 404, flushing water pump 404 is opened, water in water receiver 405 is transported to water jet, be directly injected on heat exchanger by water jet, automatically clean, and when the pressure differential p that differential pressure pickup detects≤y (x) (parameter threshold scope) or scavenging period reach T minute (preset scavenging period) time, automatic cleaning command terminates, scavenging pump shuts down, complete automatic cleaning.

Embodiment (two)

First detection module 401 and the second detection module 402 are respectively air velocity transducer, namely by indoor set heat exchanger 411 and the more stable place of outdoor unit heat exchanger 412 wind field wind speed, arrange air velocity transducer, measure the wind speed of heat exchanger surfaces externally and internally, Real-time Collection blower fan wind speed, air-conditioner sets the wind speed zone of reasonableness of each wind shelves in advance, such as, arranging lower limit is: the lower voltage limit in air-conditioner sales territory power-supply fluctuation scope, and heat exchanger is in moderate dust stratification situation, measured wind speed can be set as the wind speed lower limit V1m/s of current wind shelves, arranging higher limit is: the upper voltage limit in air-conditioner sales territory power-supply fluctuation scope, and heat exchanger does not have dust stratification, and measured wind speed can be set as the upper wind velocity limit value V2m/s of current wind shelves, so, when off-premises station blower fan or indoor set blower fan are with in x shelves running, real-time detection wind speed y (running state parameter), and compare with the zone of reasonableness of current operation windscreen, if within t minute, y<V1 (t) detected in (Preset Time) continuously always, then judge that this heat exchanger dust stratification is serious, need to clean, control module 403 sends automatic purge signal to flushing water pump 404, flushing water pump 404 is opened, water in water receiver 405 is transported to water jet, be directly injected on heat exchanger by water jet, automatically clean, and when wind speed y>V1 (t) that air velocity transducer detects (parameter threshold scope) or scavenging period reach T minute (preset scavenging period) time, automatic cleaning command terminates, scavenging pump shuts down, complete automatic cleaning, and if V1 (t) <y<V2 (t) detected, or there is y<V1 (t) or y>V2 (t) in discontinuity, then judge that heat exchanger of air conditioner normally runs, heat exchanger dust stratification is not serious, without the need to cleaning.

Only have outdoor unit heat exchanger 412 to need cleaning when detecting, and when indoor set heat exchanger 411 does not need to clean, then the second magnetic valve 418 is opened, and the first magnetic valve 417 cuts out; Only have indoor set heat exchanger 411 to need cleaning when detecting, and when outdoor unit heat exchanger 412 does not need to clean, then the second magnetic valve 418 cut out, and the first magnetic valve 417 is opened; When detecting that outdoor unit heat exchanger 412 and indoor set heat exchanger 411 all need cleaning, the second magnetic valve 418 is opened, and the first magnetic valve 417 is opened; First magnetic valve 417 and the second magnetic valve 418, in the no clean time, are all in closed condition.

Simultaneously, air-conditioner outdoor unit is under summer high temperature environment during refrigerating operaton, often delivery temperature and pressure at expulsion are all relatively high, condensation effect is poor, the automatically controlled mainboard of off-premises station is by data such as the environment temperature, delivery temperature and the pressures at expulsion that collect, send control module 403 to, control module 403 is according to certain control logic, open flushing water pump 404, water is directly sprayed outdoor unit heat exchanger 412, can effectively reduce delivery temperature and pressure at expulsion, increase condensation effect, improve the overall performance of unit.

Technical scheme of the present invention, by providing a kind of automatic cleaning type air-conditioner system, by the operational factor of sensor test unit (detection module), judge the dust stratification degree of heat exchanger, according to certain control logic, open flushing water pump, utilize the water in water receiver, heat exchanger cleans, thus ensures normal heat transfer effect, improves air-conditioner system reliability of operation.

In the description of this description, term " first ", " second " object only for describing, and instruction or hint relative importance can not be interpreted as; The term such as term " installation ", " setting " all should be interpreted broadly, and such as, " installation " can be fixed installation, also can be detachable installation, or install integratedly.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.

In the description of this description, specific features, structure, material or feature that the description of term " embodiment ", " some embodiments ", " specific embodiment " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.

The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Accompanying drawing explanation

Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:

Fig. 1 shows the block diagram of automatic cleaning system according to an embodiment of the invention;

Fig. 2 shows the block diagram of air-conditioner according to an embodiment of the invention;

Fig. 3 shows control method according to an embodiment of the invention;

Fig. 4 shows the structural representation of automatic cleaning system according to an embodiment of the invention;

Wherein, the corresponding relation in Fig. 4 between Reference numeral and component names is:

401 first detection modules, 402 second detection modules, 403 control modules, 404 flushing water pumps, 405 water receivers, 406 indoor heat exchanger water jets, 407 outdoor heat exchanger water jets, 408 indoor set condensate collectors, 409 off-premises station condensate collectors, 410 condensate pumps, 411 indoor set heat exchangers, 412 outdoor unit heat exchangers, 413 small pumps, 414 draining valves, 415 water level switches, 416 off-premises station ambient temperature sensor, 417 first magnetic valves, 418 second magnetic valves.

Claims

1. an automatic cleaning system, for air-conditioner, is characterized in that, comprising:

Water receiver, the first end of described water receiver is connected to indoor set condensate collector and off-premises station condensate collector, for storing the condensed water of recovery;

Flushing water pump, one end of described flushing water pump is connected to the second end of described water receiver, and the other end of described flushing water pump is connected to indoor set water jet and off-premises station water jet;

Described indoor set water jet and described off-premises station water jet, clean indoor heat exchanger and the outdoor heat exchanger of described air-conditioner respectively for the condensed water received from described water receiver;

First detection module, for detecting the first running state parameter of described indoor heat exchanger;

Second detection module, for detecting the second running state parameter of described outdoor heat exchanger;

Control module, for determining whether to send automatic purge signal to described flushing water pump according to described first running state parameter and/or described second state parameter, to determine whether that opening described flushing water pump cleans automatically to described indoor heat exchanger and/or described outdoor heat exchanger.

2. automatic cleaning system according to claim 1, is characterized in that, described indoor set water jet and described off-premises station water jet are separately positioned on the top of described indoor heat exchanger and described outdoor heat exchanger.

3. automatic cleaning system according to claim 1, is characterized in that, also comprises:

Condensate pump, one end of described condensate pump is connected to the described first end of described water receiver, the other end of described condensate pump is connected to described indoor set condensate collector and described off-premises station condensate collector, is delivered to described water receiver with the condensed water described indoor set condensate collector and described off-premises station condensate collector collected;

Water level switch, is arranged on described water receiver, for detecting the height of water level of described water receiver; And

Described control module is also for the on off state that controls described condensate pump according to the testing result of described water level switch.

4. automatic cleaning system according to claim 3, is characterized in that, also comprises:

Draining valve, described draining valve is connected to the 3rd end of described water receiver;

Outdoor environment sensor, for detecting outdoor environment temperature;

Small pump, described small pump is connected to described second end of described water receiver; And

Described control module specifically for:

When detecting that the first height of water level of described water receiver is more than or equal to the first preset water level height by described water level switch, control the closedown of described condensate pump or control described condensate pump work on and control to open described draining valve; And

When judging that the current environmental temperature detected by described outdoor environment sensor is less than preset temperature, controlling described draining valve and opening, to make the condensed water in described water receiver emptying; And

Before sending described automatic purge signal to described flushing water pump, when the second height of water level of the described water receiver detected by described water level switch is less than the second preset water level height, control to open described small pump.

5. automatic cleaning system according to claim 1, is characterized in that, also comprises:

First magnetic valve, one end of described first magnetic valve is connected to described flushing water pump, and the other end of described first magnetic valve is connected to described indoor set water jet;

Second magnetic valve, one end of described second magnetic valve is connected to described flushing water pump, and the other end of described second magnetic valve is connected to described off-premises station water jet; And

Described control module specifically for: when sending described automatic purge signal to described flushing water pump, control to open described first magnetic valve and/or described second magnetic valve, to clean described indoor heat exchanger and/or described outdoor heat exchanger.

6. automatic cleaning system according to any one of claim 1 to 5, is characterized in that, described control module concrete also for:

In Preset Time, when described first running state parameter of judgement exceeds the first parameter threshold scope continuously and/or described second running state parameter exceeds the second parameter threshold scope continuously, control to send described automatic purge signal, automatically to clean described indoor heat exchanger and/or described outdoor heat exchanger to described flushing water pump; And

After starting the automatic cleaning to described indoor heat exchanger and/or described outdoor heat exchanger, when judging that described first running state parameter belongs to described first parameter threshold scope and/or described second running state parameter belongs to described second parameter threshold scope, or when judgement reaches default scavenging period, control to close described flushing water pump.

7. an air-conditioner, is characterized in that, comprises the automatic cleaning system according to any one of claim 1 to 6.

8. a control method, for air-conditioner, is characterized in that, control the automatic cleaning system work according to any one of claim 1 to 6, described control method comprises:

Detected described first running state parameter of described indoor heat exchanger by described first detection module, and detected the second running state parameter of described outdoor heat exchanger by described second detection module;

Judge in Preset Time by described control module, described first running state parameter whether exceeds the first parameter threshold scope continuously and/or whether described second running state parameter exceeds the second parameter threshold scope continuously;

When being judged to be, control to open described flushing water pump by described control module, by described indoor set water jet and/or described off-premises station water jet, the described indoor heat exchanger of described air-conditioner and/or described outdoor heat exchanger are cleaned automatically to make the condensed water in described water receiver.

9. control method according to claim 8, is characterized in that,

After starting the automatic cleaning to described indoor heat exchanger and/or described outdoor heat exchanger, when judging that described first running state parameter belongs to described first parameter threshold scope and/or described second running state parameter belongs to described second parameter threshold scope, or when judgement reaches default scavenging period, control to close described flushing water pump by described control module.

10. control method according to claim 8, is characterized in that, also comprises:

The first height of water level of described water receiver is detected by the water level switch of described air-conditioner;

Judge whether described first height of water level is more than or equal to the first preset water level height by described control module;

When being judged to be, controlling described water receiver by described control module and stopping collecting condensed water or controlling to carry out draining while described water receiver collects condensed water; And

Before starting the automatic cleaning to described indoor heat exchanger and/or described outdoor heat exchanger, also comprise:

Judge whether the second height of water level detected by described water level switch is less than the second preset water level height by described control module;

When being judged to be, the small pump controlling to start described air-conditioner by described control module carries out moisturizing to described water receiver, otherwise, control to start described flushing water pump by described control module.

Control method according to any one of 11. according to Claim 8 to 10, is characterized in that, also comprises:

Current environmental temperature is detected by the outdoor environment sensor of described air-conditioner;

Judge whether described current environmental temperature is less than preset temperature by described control module;

When being judged to be, open the draining valve of described air-conditioner by emptying for the condensed water in described water receiver by described control module control.