CN104501353A - Dehumidifier, and control method and control device thereof - Google Patents

Dehumidifier, and control method and control device thereof Download PDF

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Publication number
CN104501353A
CN104501353A CN201410712270.5A CN201410712270A CN104501353A CN 104501353 A CN104501353 A CN 104501353A CN 201410712270 A CN201410712270 A CN 201410712270A CN 104501353 A CN104501353 A CN 104501353A
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Prior art keywords
dehumidifier
temperature
evaporimeter
time
preset
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CN201410712270.5A
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CN104501353B (en
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邓秦波
邓海钊
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GD Midea Air Conditioning Equipment Co Ltd
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Guangdong Midea Refrigeration Equipment Co Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof

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

Abstract

The invention discloses a control method of a dehumidifier. The control method comprises the following steps: after the dehumidifier enters a defrosting mode, controlling a compressor in the dehumidifier to keep a continuous running state, and controlling a fan in the dehumidifier to be in an off state; when the off-state time of the fan reaches a first time, controlling the compressor to be in the off state and controlling the fan to be in an on state; when the dehumidifier meets a defrosting-exiting condition, controlling the dehumidifier to exit from the defrosting mode. When the control method of the dehumidifier controls the defrosting of the dehumidifier, the defrosting speed of the dehumidifier can be increased and the dehumidifying amount of the dehumidifier under a low-temperature or medium-temperature working condition is enhanced, so that the dehumidifying effect of the dehumidifier is significant. The invention further discloses a control device of the dehumidifier and the dehumidifier.

Description

The control method of dehumidifier and dehumidifier and control device
Technical field
The present invention relates to dehumidifier technical field, particularly a kind of control method of dehumidifier, a kind of control device of dehumidifier and a kind of dehumidifier with this control device.
Background technology
The current dehumidifier product scope of application is more and more wider, wherein in Europe, some areas of North America high latitude, it is many that the applying working condition of dehumidifier is in middle low temperature environment, under this environment general due to air dew point temperature close to zero degree even lower than zero degree, thus after dehumidifier operation certain hour, the evaporimeter of dehumidifier will frosting, time has grown frosting can be more and more thicker, finally build-up ice, cause thermal resistance very large, now dehumidifier can not continue dehumidifying substantially again, if dehumidifier does not defrost and continues to run in this case, cause waste of energy, therefore, dehumidifier needs to carry out defrost work in this case.
The defrosting method of existing dehumidifier is a lot, but Domestic dehumidifying machine main product, substantially be all stop compressor, blower fan continues blowing and carrys out defrost, this defrosting method is more traditional, but defrost speed is slow, and the defrost periods time is long, cause dehumidifier overall operation moisture removal of on average getting off on the low side, defrost poor effect.
Summary of the invention
Object of the present invention is intended at least solve one of above-mentioned technological deficiency.
For this reason, first object of the present invention is the control method proposing a kind of dehumidifier, can accelerate the defrost speed of dehumidifier when controlling dehumidifier defrost, improves the moisture removal of dehumidifier under middle worst cold case, makes the effect on moisture extraction of dehumidifier remarkable.
Second object of the present invention is the control device proposing a kind of dehumidifier.3rd object of the present invention is to propose a kind of dehumidifier.
For achieving the above object, the control method of a kind of dehumidifier that one aspect of the present invention embodiment proposes, comprise the following steps: after described dehumidifier enters defrost pattern, control the compressor maintenance running status in described dehumidifier, and the blower fan controlled in described dehumidifier is in stopped status; When the time that described blower fan is in stopped status reaches the very first time, control described compressor and be in stopped status, and control described blower fan and be in opening; And when described dehumidifier meet exit defrost condition time, control described dehumidifier and exit described defrost pattern.
According to the control method of the dehumidifier of the embodiment of the present invention, after control dehumidifier enters defrost pattern, first fan parking is controlled before defrosting, compressor maintenance running status simultaneously, at this moment evaporimeter, condenser does not all have forced-convection heat transfer, thus energy exchange is very little to external world, and at this moment because compressor continues to run, done work by the compressing mechanism of compressor, drive motors runs heating, other parts frictions etc., capital makes the interior of this circulatory system of whole refrigerant loop namely to increase by intrasystem heat, be mainly reflected in refrigerant high side pressure and temperature rising, the power of compressor rises, input due at this moment electric energy is greater than evaporimeter and the externally total heat of condenser exports, therefore can accumulation of energy rise in system, and this uphill process is very fast, after this process lasts very first time, control compressor shutdown again, and control blower fan unlatching, at this moment the heat of system refrigerant circulation circuit takes evaporimeter to by refrigerant flowing, thus the heat for defrosting making evaporimeter obtain increases greatly, make dehumidifier can defrost quickly like this, thus improve the defrost speed of dehumidifier, and then the moisture removal of dehumidifier under middle worst cold case can be improved, make the effect on moisture extraction of dehumidifier remarkable.
According to one embodiment of present invention, the control method of described dehumidifier, also comprises: testing environment temperature T1, and detects the pipe temperature T2 of the evaporimeter in described dehumidifier; Pipe temperature T2 according to described environment temperature T1 and described evaporimeter judges whether that controlling described dehumidifier enters described defrost pattern.
According to one embodiment of present invention, control described dehumidifier according to the pipe temperature T2 of described environment temperature T1 and described evaporimeter and enter described defrost pattern, specifically comprise: judge whether described environment temperature T1 is less than the first preset temperature, and judge whether the cumulative time that the pipe temperature T2 of described evaporimeter is less than the second preset temperature reaches the first Preset Time; If described environment temperature T1 is less than described first preset temperature, and the cumulative time that the pipe temperature T2 of described evaporimeter is less than described second preset temperature reach described first Preset Time, then control described dehumidifier and enter described defrost pattern.
According to one embodiment of present invention, the described very first time obtains according to described environment temperature T1.
Wherein, when described environment temperature T1 is more than or equal to the 3rd preset temperature, the described very first time is the first preset value; When described environment temperature T1 is less than described 3rd preset temperature, the described very first time is the second preset value, and wherein, described second preset value is greater than described first preset value.
According to one embodiment of present invention, exiting defrost condition described in is any one in following condition:
(1) the pipe temperature T2 of described evaporimeter is greater than the 4th preset temperature;
(2) the pipe temperature T2 of described evaporimeter is greater than described environment temperature T1 and the difference of the pipe temperature T2 of described evaporimeter and described environment temperature T1 is greater than the 5th preset temperature.
For achieving the above object, the control device of a kind of dehumidifier that the present invention's another aspect embodiment proposes, comprising: temperature detecting module, described temperature detecting module is used for testing environment temperature T1, and detects the pipe temperature T2 of the evaporimeter in described dehumidifier, and control module, described control module enters defrost pattern for controlling described dehumidifier according to the pipe temperature T2 of described environment temperature T1 and described evaporimeter, and after described dehumidifier enters defrost pattern, described control module controls the compressor maintenance running status in described dehumidifier, the blower fan simultaneously controlled in described dehumidifier is in stopped status, and when the time that described blower fan is in stopped status reaches the very first time, described control module controls described compressor and is in stopped status, control described blower fan simultaneously and be in opening, and described dehumidifier meet exit defrost condition time, described control module controls described dehumidifier and exits described defrost pattern.
According to the control device of the dehumidifier of the embodiment of the present invention, after control dehumidifier enters defrost pattern, before defrosting, control module first controls fan parking, control compressor maintenance running status simultaneously, at this moment evaporimeter, condenser does not all have forced-convection heat transfer, thus energy exchange is very little to external world, and at this moment because compressor continues to run, done work by the compressing mechanism of compressor, drive motors runs heating, other parts frictions etc., capital makes the interior of this circulatory system of whole refrigerant loop namely to increase by intrasystem heat, be mainly reflected in refrigerant high side pressure and temperature rising, the power of compressor rises, input due at this moment electric energy is greater than evaporimeter and the externally total heat of condenser exports, therefore can accumulation of energy rise in system, and this uphill process is very fast, after this process lasts very first time, control compressor shutdown again, and control blower fan unlatching, at this moment the heat of system refrigerant circulation circuit takes evaporimeter to by refrigerant flowing, thus the heat for defrosting making evaporimeter obtain increases greatly, make dehumidifier can defrost quickly like this, thus improve the defrost speed of dehumidifier, and then the moisture removal of dehumidifier under middle worst cold case can be improved, make the effect on moisture extraction of dehumidifier remarkable.
According to one embodiment of present invention, wherein, if described environment temperature T1 is less than the first preset temperature, and the cumulative time that the pipe temperature T2 of described evaporimeter is less than the second preset temperature reach the first Preset Time, described control module then controls described dehumidifier and enters described defrost pattern.
According to one embodiment of present invention, described control module obtains the described very first time according to described environment temperature T1.
Wherein, when described environment temperature T1 is more than or equal to the 3rd preset temperature, the described very first time is the first preset value; When described environment temperature T1 is less than described 3rd preset temperature, the described very first time is the second preset value, and wherein, described second preset value is greater than described first preset value.
According to one embodiment of present invention, exiting defrost condition described in is any one in following condition:
(1) the pipe temperature T2 of described evaporimeter is greater than the 4th preset temperature;
(2) the pipe temperature T2 of described evaporimeter is greater than described environment temperature T1 and the difference of the pipe temperature T2 of described evaporimeter and described environment temperature T1 is greater than the 5th preset temperature.
In addition, embodiments of the invention also proposed a kind of dehumidifier, and it comprises the control device of above-mentioned dehumidifier.
According to the dehumidifier of the embodiment of the present invention, after entering defrost pattern, first fan parking is controlled before defrosting, control compressor maintenance running status simultaneously, at this moment evaporimeter, condenser does not all have forced-convection heat transfer, thus energy exchange is very little to external world, and at this moment because compressor continues to run, done work by the compressing mechanism of compressor, drive motors runs heating, other parts frictions etc., capital makes the interior of this circulatory system of whole refrigerant loop namely to increase by intrasystem heat, be mainly reflected in refrigerant high side pressure and temperature rising, the power of compressor rises, input due at this moment electric energy is greater than evaporimeter and the externally total heat of condenser exports, therefore can accumulation of energy rise in system, and this uphill process is very fast, after this process lasts very first time, control compressor shutdown again, and control blower fan unlatching, at this moment the heat of system refrigerant circulation circuit takes evaporimeter to by refrigerant flowing, thus the heat for defrosting making evaporimeter obtain increases greatly, like this can defrost quickly, thus accelerate defrost speed, and then the moisture removal that can improve under middle worst cold case, effect on moisture extraction is remarkable.
The aspect that the present invention adds and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or additional aspect and advantage will become obvious and easy understand from the following description of the accompanying drawings of embodiments, wherein:
Fig. 1 is the flow chart of the control method of dehumidifier according to the embodiment of the present invention;
Fig. 2 is the flow chart of the control method of dehumidifier according to the present invention's specific embodiment; And
Fig. 3 is the block diagram of the control device of dehumidifier according to the embodiment of the present invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
Disclosing hereafter provides many different embodiments or example is used for realizing different structure of the present invention.Of the present invention open in order to simplify, hereinafter the parts of specific examples and setting are described.Certainly, they are only example, and object does not lie in restriction the present invention.In addition, the present invention can in different example repeat reference numerals and/or letter.This repetition is to simplify and clearly object, itself does not indicate the relation between discussed various embodiment and/or setting.In addition, the various specific technique that the invention provides and the example of material, but those of ordinary skill in the art can recognize the property of can be applicable to of other techniques and/or the use of other materials.In addition, fisrt feature described below second feature it " on " structure can comprise the embodiment that the first and second features are formed as directly contact, also can comprise other feature and be formed in embodiment between the first and second features, such first and second features may not be direct contacts.
In describing the invention, it should be noted that, unless otherwise prescribed and limit, term " installation ", " being connected ", " connection " should be interpreted broadly, such as, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
Describe the control method of dehumidifier, the control device of dehumidifier that propose according to the embodiment of the present invention with reference to the accompanying drawings and there is the dehumidifier of this control device.
Fig. 1 is the flow chart of the control method of dehumidifier according to the embodiment of the present invention.As shown in Figure 1, the control method of this dehumidifier comprises the following steps:
S1, after dehumidifier enters defrost pattern, control the compressor maintenance running status in dehumidifier, and the blower fan controlled in dehumidifier is in stopped status.
According to one embodiment of present invention, before control dehumidifier enters defrost pattern, testing environment temperature T1, and the pipe temperature T2 detecting the evaporimeter in dehumidifier; Then environmentally the pipe temperature T2 of temperature T1 and evaporimeter judges whether that controlling dehumidifier enters defrost pattern.
Further, control described dehumidifier according to the pipe temperature T2 of described environment temperature T1 and described evaporimeter and enter described defrost pattern, specifically comprise: judge whether described environment temperature T1 is less than the first preset temperature, and whether reach the first Preset Time in the cumulative time that the pipe temperature T2 of described evaporimeter is less than the second preset temperature; If described environment temperature T1 is less than described first preset temperature, and the cumulative time that the pipe temperature T2 of described evaporimeter is less than described second preset temperature reach described first Preset Time, then control described dehumidifier and enter described defrost pattern.
According to an example of the present invention, the first preset temperature can be 18 DEG C, and the second preset temperature can be-1 DEG C, and the first Preset Time can be 15 minutes.
That is, controlling the decision condition that dehumidifier enters defrost pattern is: environment temperature T1 is less than 18 DEG C, and the cumulative time that the pipe temperature T2 of evaporimeter is less than-1 DEG C simultaneously reaches 15 minutes.Wherein, the pipe temperature T2 of environment temperature T1 and evaporimeter is that after dehumidifier start, persistent loop detects the temperature value obtained, it is consideration based on air dew point temperature that environment temperature T1 is less than 18 DEG C, and it be consideration dehumidifier is be in metastable running status that the cumulative time that the pipe temperature T2 of evaporimeter is less than-1 DEG C simultaneously reaches 15 minutes.
S2, when the time that blower fan is in stopped status reaches the very first time, controls compressor and is in stopped status, and control blower fan and be in opening.
According to one embodiment of present invention, very first time Ts1 environmentally temperature T1 acquisition.Wherein, when environment temperature T1 is more than or equal to the 3rd preset temperature, very first time Ts1 is the first preset value; When environment temperature T1 is less than described 3rd preset temperature, very first time Ts1 is the second preset value, and wherein, described second preset value is greater than described first preset value.
Particularly, the first preset value can be 0.5 minute, and the second preset value can be 1 minute, and the 3rd preset temperature can be 10 DEG C.
That is, the time variable Ts1 that blower fan is in stopped status is the function about environment temperature T1, i.e. Ts1=Ts1={0.5 minute, T1>=10 degree; 1 minute, T1<10 degree }.Wherein, the first preset value, the second preset value and the 3rd preset temperature rule of thumb data draw, different coolant circulating systems has different setting values.
S3, when dehumidifier meet exit defrost condition time, control dehumidifier exit defrost pattern.
Wherein, exiting defrost condition described in is any one in following condition:
(1) the pipe temperature T2 of evaporimeter is greater than the 4th preset temperature;
(2) the pipe temperature T2 of evaporimeter is greater than environment temperature T1 and the difference of the pipe temperature T2 of evaporimeter and environment temperature T1 is greater than the 5th preset temperature.
According to an example of the present invention, the 4th preset temperature can be 12 DEG C, and the 5th preset temperature can be 5 DEG C.
That is, in an embodiment of the present invention, the arbitrary condition in the pipe temperature T2 > 12 DEG C of evaporimeter or T2 > (T1+5 DEG C) meets, and controls dehumidifier and exits defrost pattern, namely control compressor to open, blower fan also continues to run.Wherein, T2 > (T1+5 DEG C) represents that the Guan Wen of evaporimeter is higher than environment temperature more than 5 DEG C, and the 5th preset temperature is here empirical value, and specifically different coolant circulating systems has different values.
In sum, in an embodiment of the present invention, after dehumidifier start, normal operation is that conventional dehumidifying runs, and now compressor and blower fan are all in running status, then the pipe temperature T2 of testing environment temperature T1 and evaporimeter; When judging environment temperature T1 < 18 DEG C, the cumulative time of the pipe temperature T2 <-1 DEG C of evaporimeter reaches 15 minutes simultaneously, and control dehumidifier and enter defrost pattern, dehumidifier performs defrost action, namely control compressor to continue to keep running status, fan parking; When fan parking reaches very first time Ts1, control compressor shutdown, control blower fan to open simultaneously, utilize the interior energy combining environmental atmospheric heat of coolant circulating system, defrosting is carried out in the combination of inner and outside, wherein, the length of very first time Ts1, according to the environment temperature T1 detected, is selected to obtain by mapping relations; Last arbitrary condition in the pipe temperature T2 > 12 DEG C judging evaporimeter or T2 > (T1+5 DEG C) meets, control dehumidifier and exit defrost pattern, compressor is opened, blower fan continues to run, terminate this defrost periods, dehumidifier continues normal operation.Therefore, control method first blowing-out machine before the defrost of control dehumidifier of the dehumidifier of the embodiment of the present invention, compressor is allowed to continue to run with accumulation of energy of doing work, thus can state go to perform defrost action in system height, namely the control method of the dehumidifier of the embodiment of the present invention can make dehumidifier before defrost periods defrosting, first improve the interior energy (i.e. heat in system) of system, then fast defrost is strengthened with larger thermal release to reach when defrosting, shorten the time of defrost periods, and strengthen defrost effect, simultaneously due to high heat defrost rapid frost melting, decrease the distillation evaporation section of frost, make frost melt into water flow to water tank the water yield increase, namely monocyclic dehumidifying total Water is improved, comprehensively reach the better operational effect of dehumidifier.
According to a specific embodiment of the present invention, as shown in Figure 2, the control method of above-mentioned dehumidifier comprises the following steps:
S201, start.
S202, dehumidifier normally runs, and namely dehumidify after dehumidifier start operation routinely.
S203, the pipe temperature T2 of testing environment temperature T1 and evaporimeter.
S204, judges whether T1 is less than 18 DEG C.If so, step S205 is performed; If not, step S202 is returned.
S205, judges whether the cumulative time of T2 <-1 DEG C reaches 15 minutes.If so, step S206 is performed; If not, step S202 is returned.
That is, after starting shooting when dehumidifier normally runs, the pipe temperature T2 of testing environment temperature T1 and evaporimeter simultaneously, if at environment temperature T1=14 DEG C, and detect the pipe temperature T2 of evaporimeter, start timing as T2<-1 DEG C, when accumulative timing was by 15 minutes, at this moment continue testing environment temperature T1, now T1=14 DEG C, i.e. T1<18 DEG C, meets the condition that dehumidifier enters defrost pattern, controls dehumidifier and enters defrost pattern.
S206, judges whether environment temperature T1 is more than or equal to 10 DEG C.If so, step S207 is performed; If not, step S208 is performed.
S207, controls 0.5 minute out of service of blower fan, performs step S209.
S208, controls 1 minute out of service of blower fan, performs step S209.
S209, controls compressor out of service, controls blower fan simultaneously and opens operation.
That is; after dehumidifier enters defrost pattern; at this moment environment temperature T1>=10 DEG C is judged; then blowing-out machine 0.5 minute, and then open, compressor shutdown during unlatching; if T1<10 DEG C; then blower fan is opened for 1 minute out of service again, and similarly, when blower fan is opened, compressor is out of service.
S210, judges that the pipe temperature T2 of evaporimeter is greater than 12 DEG C or judge that T2 is greater than T1+5 DEG C.Meet if these two conditions are arbitrary, then perform step S211, otherwise, return step S209.
Namely say, after compressor is out of service, detect the pipe temperature T2 of evaporimeter, and judge T2>12 DEG C, or T2>T1+5 DEG C, as long as meet one of them can exit defrost pattern, if T2 is greater than 12 DEG C exit defrost, if now environment temperature T1 is 5 DEG C, then T2> (5+5=10) DEG C, also meet and exit defrost condition, dehumidifier exits defrost pattern.
S211, compressor is opened and is run, and returns step S202.Namely say, dehumidifier exits defrost pattern, and compressor is startup optimization again, and defrost periods control action terminates, and dehumidifier normally runs.
According to the control method of the dehumidifier of the embodiment of the present invention, after control dehumidifier enters defrost pattern, first fan parking is controlled before defrosting, compressor maintenance running status simultaneously, at this moment evaporimeter, condenser does not all have forced-convection heat transfer, thus energy exchange is very little to external world, and at this moment because compressor continues to run, done work by the compressing mechanism of compressor, drive motors runs heating, other parts frictions etc., capital makes the interior of this circulatory system of whole refrigerant loop namely to increase by intrasystem heat, be mainly reflected in refrigerant high side pressure and temperature rising, the power of compressor rises, input due at this moment electric energy is greater than evaporimeter and the externally total heat of condenser exports, therefore can accumulation of energy rise in system, and this uphill process is very fast, after this process lasts very first time, control compressor shutdown again, and control blower fan unlatching, at this moment the heat of system refrigerant circulation circuit takes evaporimeter to by refrigerant flowing, thus the heat for defrosting making evaporimeter obtain increases greatly, make dehumidifier can defrost quickly like this, thus improve the defrost speed of dehumidifier, and then the moisture removal of dehumidifier under middle worst cold case can be improved, make the effect on moisture extraction of dehumidifier remarkable.
Fig. 3 is the block diagram of the control device of dehumidifier according to the embodiment of the present invention.As shown in Figure 3, the control device of this dehumidifier comprises: temperature detecting module 10 and control module 20.
Wherein, temperature detecting module 10 for testing environment temperature T1, and detects the pipe temperature T2 of the evaporimeter in dehumidifier.Control module 20 controls dehumidifier for the pipe temperature T2 of environmentally temperature T1 and evaporimeter and enters defrost pattern; and after dehumidifier enters defrost pattern; control module 20 controls the compressor maintenance running status in dehumidifier; the blower fan controlled in dehumidifier is in stopped status simultaneously; and when the time that blower fan is in stopped status reaches the very first time; control module 20 controls compressor and is in stopped status; control blower fan simultaneously and be in opening; and dehumidifier meet exit defrost condition time, control module 20 controls dehumidifier and exits defrost pattern.
Wherein, if described environment temperature T1 is less than the first preset temperature such as 18 DEG C, and the cumulative time that the pipe temperature T2 of described evaporimeter is less than the second preset temperature such as-1 DEG C reaches the first Preset Time such as 15 minutes, control module 20 control dehumidifiers enter defrost pattern.
According to one embodiment of present invention, the control module 20 environmentally temperature T1 acquisition very first time.Wherein, when environment temperature T1 be more than or equal to the 3rd preset temperature such as 10 DEG C time, the very first time is the first preset value such as 0.5 minute; When environment temperature T1 is less than the 3rd preset temperature, the very first time is the second preset value such as 1 minute, and wherein, described second preset value is greater than described first preset value.
Wherein, exiting defrost condition described in is any one in following condition:
(1) the pipe temperature T2 of evaporimeter is greater than the 4th preset temperature;
(2) the pipe temperature T2 of evaporimeter is greater than environment temperature T1 and the difference of the pipe temperature T2 of evaporimeter and environment temperature T1 is greater than the 5th preset temperature.
According to an example of the present invention, the 4th preset temperature can be 12 DEG C, and the 5th preset temperature can be 5 DEG C.
That is, in an embodiment of the present invention, the arbitrary condition in the pipe temperature T2 > 12 DEG C of evaporimeter or T2 > (T1+5 DEG C) meets, and controls dehumidifier and exits defrost pattern, namely control compressor to open, blower fan also continues to run.Wherein, T2 > (T1+5 DEG C) represents that the Guan Wen of evaporimeter is higher than environment temperature more than 5 DEG C, and the 5th preset temperature is here empirical value, and specifically different coolant circulating systems has different values.
According to the control device of the dehumidifier of the embodiment of the present invention, after control dehumidifier enters defrost pattern, before defrosting, control module first controls fan parking, control compressor maintenance running status simultaneously, at this moment evaporimeter, condenser does not all have forced-convection heat transfer, thus energy exchange is very little to external world, and at this moment because compressor continues to run, done work by the compressing mechanism of compressor, drive motors runs heating, other parts frictions etc., capital makes the interior of this circulatory system of whole refrigerant loop namely to increase by intrasystem heat, be mainly reflected in refrigerant high side pressure and temperature rising, the power of compressor rises, input due at this moment electric energy is greater than evaporimeter and the externally total heat of condenser exports, therefore can accumulation of energy rise in system, and this uphill process is very fast, after this process lasts very first time, control compressor shutdown again, and control blower fan unlatching, at this moment the heat of system refrigerant circulation circuit takes evaporimeter to by refrigerant flowing, thus the heat for defrosting making evaporimeter obtain increases greatly, make dehumidifier can defrost quickly like this, thus improve the defrost speed of dehumidifier, and then the moisture removal of dehumidifier under middle worst cold case can be improved, make the effect on moisture extraction of dehumidifier remarkable.
In addition, embodiments of the invention also proposed a kind of dehumidifier, and it comprises the control device of above-mentioned dehumidifier.
According to the dehumidifier of the embodiment of the present invention, after entering defrost pattern, first fan parking is controlled before defrosting, control compressor maintenance running status simultaneously, at this moment evaporimeter, condenser does not all have forced-convection heat transfer, thus energy exchange is very little to external world, and at this moment because compressor continues to run, done work by the compressing mechanism of compressor, drive motors runs heating, other parts frictions etc., capital makes the interior of this circulatory system of whole refrigerant loop namely to increase by intrasystem heat, be mainly reflected in refrigerant high side pressure and temperature rising, the power of compressor rises, input due at this moment electric energy is greater than evaporimeter and the externally total heat of condenser exports, therefore can accumulation of energy rise in system, and this uphill process is very fast, after this process lasts very first time, control compressor shutdown again, and control blower fan unlatching, at this moment the heat of system refrigerant circulation circuit takes evaporimeter to by refrigerant flowing, thus the heat for defrosting making evaporimeter obtain increases greatly, like this can defrost quickly, thus accelerate defrost speed, and then the moisture removal that can improve under middle worst cold case, effect on moisture extraction is remarkable.
Describe and can be understood in flow chart or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiments of the invention person of ordinary skill in the field.
In flow charts represent or in this logic otherwise described and/or step, such as, the sequencing list of the executable instruction for realizing logic function can be considered to, may be embodied in any computer-readable medium, for instruction execution system, device or equipment (as computer based system, comprise the system of processor or other can from instruction execution system, device or equipment instruction fetch and perform the system of instruction) use, or to use in conjunction with these instruction execution systems, device or equipment.With regard to this description, " computer-readable medium " can be anyly can to comprise, store, communicate, propagate or transmission procedure for instruction execution system, device or equipment or the device that uses in conjunction with these instruction execution systems, device or equipment.The example more specifically (non-exhaustive list) of computer-readable medium comprises following: the electrical connection section (electronic installation) with one or more wiring, portable computer diskette box (magnetic device), random access memory (RAM), read-only storage (ROM), erasablely edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk read-only storage (CDROM).In addition, computer-readable medium can be even paper or other suitable media that can print described program thereon, because can such as by carrying out optical scanner to paper or other media, then carry out editing, decipher or carry out process with other suitable methods if desired and electronically obtain described program, be then stored in computer storage.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: the discrete logic with the logic gates for realizing logic function to data-signal, there is the special IC of suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, this program perform time, step comprising embodiment of the method one or a combination set of.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, also can be that the independent physics of unit exists, also can be integrated in a module by two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.If described integrated module using the form of software function module realize and as independently production marketing or use time, also can be stored in a computer read/write memory medium.
The above-mentioned storage medium mentioned can be read-only storage, disk or CD etc.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " 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.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalency thereof.

Claims (12)

1. a control method for dehumidifier, is characterized in that, comprises the following steps:
After described dehumidifier enters defrost pattern, control the compressor maintenance running status in described dehumidifier, and the blower fan controlled in described dehumidifier is in stopped status;
When the time that described blower fan is in stopped status reaches the very first time, control described compressor and be in stopped status, and control described blower fan and be in opening; And
When described dehumidifier meet exit defrost condition time, control described dehumidifier and exit described defrost pattern.
2. the control method of dehumidifier as claimed in claim 1, is characterized in that, also comprise:
Testing environment temperature T1, and the pipe temperature T2 detecting the evaporimeter in described dehumidifier;
Pipe temperature T2 according to described environment temperature T1 and described evaporimeter judges whether that controlling described dehumidifier enters described defrost pattern.
3. the control method of dehumidifier as claimed in claim 2, is characterized in that, controls described dehumidifier and enters described defrost pattern, specifically comprise according to the pipe temperature T2 of described environment temperature T1 and described evaporimeter:
Judge whether described environment temperature T1 is less than the first preset temperature, and judge whether the cumulative time that the pipe temperature T2 of described evaporimeter is less than the second preset temperature reaches the first Preset Time;
If described environment temperature T1 is less than described first preset temperature, and the cumulative time that the pipe temperature T2 of described evaporimeter is less than described second preset temperature reach described first Preset Time, then control described dehumidifier and enter described defrost pattern.
4. the control method of dehumidifier as claimed in claim 2, it is characterized in that, the described very first time obtains according to described environment temperature T1.
5. the control method of dehumidifier as claimed in claim 4, is characterized in that,
When described environment temperature T1 is more than or equal to the 3rd preset temperature, the described very first time is the first preset value;
When described environment temperature T1 is less than described 3rd preset temperature, the described very first time is the second preset value, and wherein, described second preset value is greater than described first preset value.
6. the control method of dehumidifier as claimed in claim 2, is characterized in that, described in exit defrost condition be any one in following condition:
(1) the pipe temperature T2 of described evaporimeter is greater than the 4th preset temperature;
(2) the pipe temperature T2 of described evaporimeter is greater than described environment temperature T1 and the difference of the pipe temperature T2 of described evaporimeter and described environment temperature T1 is greater than the 5th preset temperature.
7. a control device for dehumidifier, is characterized in that, comprising:
Temperature detecting module, described temperature detecting module is used for testing environment temperature T1, and detects the pipe temperature T2 of the evaporimeter in described dehumidifier; And
Control module, described control module enters defrost pattern for controlling described dehumidifier according to the pipe temperature T2 of described environment temperature T1 and described evaporimeter, and after described dehumidifier enters defrost pattern, described control module controls the compressor maintenance running status in described dehumidifier, the blower fan simultaneously controlled in described dehumidifier is in stopped status, and when the time that described blower fan is in stopped status reaches the very first time, described control module controls described compressor and is in stopped status, control described blower fan simultaneously and be in opening, and described dehumidifier meet exit defrost condition time, described control module controls described dehumidifier and exits described defrost pattern.
8. the control device of dehumidifier as claimed in claim 7, it is characterized in that, wherein, if described environment temperature T1 is less than the first preset temperature, and the cumulative time that the pipe temperature T2 of described evaporimeter is less than the second preset temperature reaches the first Preset Time, described control module then controls described dehumidifier and enters described defrost pattern.
9. the control device of dehumidifier as claimed in claim 7, is characterized in that, described control module obtains the described very first time according to described environment temperature T1.
10. the control device of dehumidifier as claimed in claim 9, is characterized in that,
When described environment temperature T1 is more than or equal to the 3rd preset temperature, the described very first time is the first preset value;
When described environment temperature T1 is less than described 3rd preset temperature, the described very first time is the second preset value, and wherein, described second preset value is greater than described first preset value.
The control device of 11. dehumidifiers as claimed in claim 7, is characterized in that, described in exit defrost condition be any one in following condition:
(1) the pipe temperature T2 of described evaporimeter is greater than the 4th preset temperature;
(2) the pipe temperature T2 of described evaporimeter is greater than described environment temperature T1 and the difference of the pipe temperature T2 of described evaporimeter and described environment temperature T1 is greater than the 5th preset temperature.
12. 1 kinds of dehumidifiers, is characterized in that, comprise the control device of the dehumidifier according to any one of claim 7-11.
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