CN105333659A - Protection and control method for compressor of dehumidifier and dehumidifier - Google Patents
Protection and control method for compressor of dehumidifier and dehumidifier Download PDFInfo
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- CN105333659A CN105333659A CN201410404583.4A CN201410404583A CN105333659A CN 105333659 A CN105333659 A CN 105333659A CN 201410404583 A CN201410404583 A CN 201410404583A CN 105333659 A CN105333659 A CN 105333659A
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Abstract
The invention relates to a protection and control method for a compressor of a dehumidifier and the dehumidifier. The method includes the steps that the current of the compressor of the dehumidifier is monitored when it is monitored that the environment temperature reaches a preset value; and the rotating speed of a draught fan of the dehumidifier is controlled according to the monitored current of the compressor. The accurate control over the compressor is achieved, ignition and compressor burn-up caused by the too high system pressure are prevented, the use safety and system stability of the compressor are improved, and the dehumidifier is easy to assemble and convenient to use.
Description
Technical field
The present invention relates to refrigeration technology field, particularly relate to a kind of dehumidifier compressor protection control method and dehumidifier.
Background technology
Dehumidifier is widely used in the various place needing dehumidifying, such as underground garage.But the fire prevention of dehumidifier is also very important.Compressor is the important composition parts of dehumidifier, is also one of main fire burning things which may cause a fire disaster.Therefore, be necessary to carry out flameproof protection control to the compressor of dehumidifier.
Summary of the invention
Main purpose of the present invention is to provide a kind of dehumidifier compressor protection control method and dehumidifier, is intended to the safety in utilization improving dehumidifier compressor.
In order to achieve the above object, the present invention proposes a kind of dehumidifier compressor protection control method, comprises the following steps:
When monitoring environment temperature and reaching preset value, the electric current of the compressor of monitoring dehumidifier;
According to the electric current of the described compressor monitored, the rotating speed of the blower fan of dehumidifier is controlled.
Preferably, the electric current of the described compressor that described basis monitors, comprises the step that the rotating speed of the blower fan of dehumidifier controls:
The rotating speed determining blower fan is compared by the electric current of described compressor that monitors and predetermined threshold value; Rotating speed according to blower fan regulates until the current value of compressor reaches below preset value to dehumidifier; Or, compare by the electric current of described compressor that monitors and predetermined threshold value the regulated quantity determining rotation speed of fan; The rotating speed of regulated quantity to blower fan according to rotation speed of fan regulates until the current value of compressor reaches below preset value.
Preferably, the rotating speed of described blower fan has low wind shelves and high wind shelves, and electric current and the predetermined threshold value of the described described compressor by monitoring compare the rotating speed determining blower fan; Rotating speed according to blower fan regulates until the step that the current value of compressor reaches below preset value comprises to dehumidifier:
Judge whether the electric current of compressor reaches the first predetermined threshold value A;
When the electric current of described compressor reaches the first predetermined threshold value A, the rotating speed of described blower fan is adjusted to high wind shelves by the low wind shelves given tacit consent to;
After dehumidifier is with the high wind shelves rotation speed of fan continuous service scheduled time, judge whether the electric current of compressor is less than the first predetermined threshold value;
If so, be then low wind shelves by the adjustment of rotational speed of described blower fan;
If not, then dehumidifier continues to run, until judge that the electric current of compressor is lower than the first predetermined threshold value and predetermined hold-time, and is low wind shelves by the adjustment of rotational speed of described blower fan.
Preferably, during the rotating speed of described blower fan has, low wind shelves, the electric current of the described compressor that described basis monitors, comprises the step that the rotating speed of the blower fan of dehumidifier controls:
The situation processing procedure of A<I<A+Q, specifically comprises:
When the electric current of described compressor meets A<I<A+Q, the rotating speed of described blower fan is adjusted to apoplexy shelves by the low wind shelves given tacit consent to, wherein, A is the first predetermined threshold value, Q be more than or equal to 1 integer;
At dehumidifier with in the continuous service scheduled time after regulating rotation speed of fan, judge whether the electric current of compressor is less than A+Q; If so, then
After dehumidifier is with the continuous service scheduled time after regulating rotation speed of fan, judging whether the electric current of compressor is less than A and predetermined hold-time, is if so, then low wind shelves by the adjustment of rotational speed of described blower fan; If not, then dehumidifier continues to run, until judge that the electric current of compressor is lower than A and predetermined hold-time, and is low wind shelves by the adjustment of rotational speed of described blower fan.
Preferably, the electric current of the described compressor that described basis monitors, further comprises the step that the rotating speed of the blower fan of dehumidifier controls:
The situation processing procedure of A+2Q>I>A+Q, specifically comprises:
When the electric current of described compressor meets A+2Q>I>A+Q, be high wind shelves by the adjustment of rotational speed of described blower fan;
At dehumidifier with in the continuous service scheduled time after regulating rotation speed of fan, judge whether the electric current of compressor is less than A+2Q; If so, then
After dehumidifier is with the continuous service scheduled time after regulating rotation speed of fan, judge whether the electric current of compressor is less than A+Q and predetermined hold-time, if, and A<I<A+Q, then press the situation process of A<I<A+Q, if I<A and predetermined hold-time, be then low wind shelves by the adjustment of rotational speed of described blower fan; If the electric current of compressor is greater than A+Q, then dehumidifier continues to run, until judge that the electric current of compressor is lower than A+Q or A and predetermined hold-time, and is apoplexy shelves or low wind shelves by the adjustment of rotational speed of described blower fan.
Preferably, the electric current of the described described compressor by monitoring and predetermined threshold value compare the regulated quantity determining rotation speed of fan; Regulate until the step that the current value of compressor reaches below preset value comprises according to the rotating speed of regulated quantity to blower fan of rotation speed of fan:
The electric current of the described compressor monitored and predetermined threshold value are compared;
When the electric current of the described compressor monitored is between the first predetermined threshold value A and the second predetermined threshold value B, according to the electric current of the compressor monitored, search default formula table, obtain the regulated quantity △ U of magnitude of voltage corresponding to blower fan, and then obtain magnitude of voltage U=UA+ △ U corresponding to blower fan; The magnitude of voltage of UA is the electric current of compressor blower fan corresponding when being the first predetermined threshold value A;
The voltage of adjustment blower fan, to the magnitude of voltage of the correspondence of described acquisition, controls the rotating speed of described blower fan until the current value of compressor reaches below preset value.
Preferably, when the electric current monitoring described compressor reaches the second predetermined threshold value B, stop compressor operating, and be high wind shelves by the adjustment of rotational speed of described blower fan; Wherein, A<B;
After compressor cuts out setting-up time, restart compressor, simultaneously the electric current of monitoring compressor, and enter step: according to the electric current of the described compressor monitored, the rotating speed of the blower fan of dehumidifier is controlled.
Preferably, the method also comprises:
When monitoring environment temperature and not reaching preset value, if monitor the electric current A<I<B of compressor, be apoplexy shelves or high wind shelves by the adjustment of rotational speed of described blower fan, after predetermined hold-time, if the electric current monitoring compressor is not less than A, then stop compressor operating; If monitor the electric current I <A of compressor, the rotating speed of described blower fan is kept the low wind shelves of acquiescence.
The present invention also proposes a kind of dehumidifier, comprise the compressor, evaporimeter, throttling arrangement, the condenser that are interconnected to constitute major loop, described condenser is provided with blower fan, also comprise the transformer for monitoring described compressor current, and the electric current of compressor for monitoring according to described transformer, to the controller that the rotating speed of described blower fan controls.
Preferably, described controller, also compares for the electric current of the described compressor by monitoring and predetermined threshold value the rotating speed determining blower fan; Rotating speed according to blower fan regulates until the current value of compressor reaches below preset value to dehumidifier; Or, compare by the electric current of described compressor that monitors and predetermined threshold value the regulated quantity determining rotation speed of fan; The rotating speed of regulated quantity to blower fan according to rotation speed of fan regulates until the current value of compressor reaches below preset value.
Preferably, the rotating speed of described blower fan has low wind shelves and high wind shelves, and described controller is also for judging whether the electric current of compressor reaches the first predetermined threshold value A; When the electric current of described compressor reaches the first predetermined threshold value A, the rotating speed of described blower fan is adjusted to high wind shelves by the low wind shelves given tacit consent to; And also for after dehumidifier is with the high wind shelves rotation speed of fan continuous service scheduled time, judge whether the electric current of compressor is less than the first predetermined threshold value; If so, be then low wind shelves by the adjustment of rotational speed of described blower fan; If not, then system continues to run, until judge that the electric current of compressor is lower than the first predetermined threshold value and predetermined hold-time, and is low wind shelves by the adjustment of rotational speed of described blower fan.Preferably, during the rotating speed of described blower fan has, low wind shelves, described controller is when the situation of A<I<A+Q, also for the rotating speed of described blower fan is adjusted to apoplexy shelves by the low wind shelves given tacit consent to, wherein, A is the first predetermined threshold value, Q be more than or equal to 1 integer;
At dehumidifier with in the continuous service scheduled time after regulating rotation speed of fan, judge whether the electric current of compressor is less than A+Q; If so, then
After dehumidifier is with the continuous service scheduled time after regulating rotation speed of fan, judging whether the electric current of compressor is less than A and predetermined hold-time, is if so, then low wind shelves by the adjustment of rotational speed of described blower fan; If not, then dehumidifier continues to run, until judge that the electric current of compressor is lower than A and predetermined hold-time, and is low wind shelves by the adjustment of rotational speed of described blower fan;
When the situation of A+2Q>I>A+Q, described controller is also for being high wind shelves by the adjustment of rotational speed of described blower fan;
At dehumidifier with in the continuous service scheduled time after regulating rotation speed of fan, judge whether the electric current of compressor is less than A+2Q; If so, then
After dehumidifier is with the continuous service scheduled time after regulating rotation speed of fan, judge whether the electric current of compressor is less than A+Q and predetermined hold-time, if, and A<I<A+Q, then press the situation process of A<I<A+Q, if I<A and predetermined hold-time, be then low wind shelves by the adjustment of rotational speed of described blower fan; If the electric current of compressor is greater than A+Q, then dehumidifier continues to run, until judge that the electric current of compressor is lower than A+Q or A and predetermined hold-time, and is apoplexy shelves or low wind shelves by the adjustment of rotational speed of described blower fan.
Preferably, described controller is also for comparing the electric current of the described compressor monitored and predetermined threshold value; When the electric current of the described compressor monitored is between the first predetermined threshold value A and the second predetermined threshold value B, according to the electric current of the compressor monitored, search default formula table, obtain the regulated quantity △ U of magnitude of voltage corresponding to blower fan, and then obtain magnitude of voltage U=UA+ △ U corresponding to blower fan; The magnitude of voltage of UA is the electric current of compressor blower fan corresponding when being the first predetermined threshold value A; ; The voltage of adjustment blower fan, to the magnitude of voltage of the correspondence of described acquisition, controls the rotating speed of described blower fan until the current value of compressor reaches below preset value.
A kind of dehumidifier compressor protection control method that the embodiment of the present invention proposes and dehumidifier; by monitoring the electric current of the compressor of dehumidifier; according to the electric current of the compressor monitored; the rotating speed of the blower fan of dehumidifier is controlled; and then realize accurate control to compressor, prevent from, because system pressure is too high and cause the compressor that burns on fire, improving safety in utilization and the stability of a system of compressor; and the assembling of this dehumidifier is simple, easy to use.
Accompanying drawing explanation
Fig. 1 is the structural representation of dehumidifier preferred embodiment of the present invention;
Fig. 2 is the schematic flow sheet of dehumidifier compressor protection control method of the present invention preferred embodiment.
In order to make technical scheme of the present invention clearly, understand, be described in further detail below in conjunction with accompanying drawing.
Detailed description of the invention
Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The solution of the embodiment of the present invention is mainly: by monitoring the electric current of the compressor of dehumidifier, according to the electric current of the compressor monitored, the rotating speed of the blower fan of dehumidifier is controlled, prevent from, because system pressure is too high and burn compressor, improving safety in utilization and the stability of a system of compressor.
As shown in Figure 1, present pre-ferred embodiments proposes a kind of dehumidifier, comprise the compressor 1, evaporimeter 3, throttling arrangement 4, the condenser 5 that are interconnected to constitute major loop, condenser 5 is provided with blower fan 6, described compressor 1 is provided with fluid reservoir 2, the present embodiment dehumidifier also comprises the transformer for monitoring described compressor 1 electric current, and the electric current of compressor 1 for monitoring according to described transformer, to the controller that the rotating speed of blower fan 6 controls, this controller can use in dehumidifier and be used for controlling the controller that normally works of major loop certainly.
Compressor 1 is as the important component of dehumidifier, and its safety in utilization is particularly important.And environment temperature too high be the one of the main reasons causing system pressure too high, when environment temperature raises, the pressure of condenser 5 will raise, the pressure increase of compressor 1, now the delivery temperature of compressor 1 and electric current also can constantly raise, when electric current reaches certain value, the binding post place of compressor 1 easily produces spark phenomenon, causes the generation of fire.
The present embodiment scheme by regulating blower fan 6 rotating speed to the monitoring of electric current, and then adjusts the running status of compressor 1, can reach reduction system pressure, the final object reducing compressor 1 electric current.
The first embodiment of the control of the rotating speed of the present embodiment blower fan 6 is by pre-setting multiple gear to realize, such as low wind shelves and high wind shelves (common shelves and strong strength grade) two gears, or high, medium and low wind three gears, or more gears.Present embodiment will be illustrated with two gears and three gears respectively.
In order to monitor the operating electric current of compressor 1, the present embodiment has set up transformer on the control circuitry, by transformer in real time or monitor compressor 1 operating electric current interval time, and current settings to blower fan 6 two electric current warning values, first predetermined threshold value A and the second predetermined threshold value B, wherein B>A, the rotating speed of electric current to blower fan 6 of the compressor 1 then monitored according to transformer by controller controls.
Concrete control procedure is as follows:
When dehumidifier receives open command, first judge that whether indoor humidity is lower than setting humidity (indoor humidity can be detected by corresponding sensor), if indoor humidity is lower than setting humidity, then do not open dehumidifier, monitoring is until when indoor humidity is higher than setting humidity repeatedly, open compressor 1 and the blower fan 6 of dehumidifier, and after giving tacit consent to dehumidifier unlatching, blower fan 6 runs with low wind shelves (common shelves).
As previously mentioned, environment temperature is too high is the one of the main reasons causing system pressure too high, and therefore, the present embodiment scheme also needs to detect environment temperature T, this environment temperature T is indoor environment temperature, can be obtained by the temperature sensor measurement be arranged on evaporimeter 3 air inlet position.
Judge whether system is cause the electric current of compressor 1 high because environment temperature is high according to the environment temperature T detected like this, or abnormal compressor 1 electric current caused of compressor 1 is high.
Thus, the present embodiment scheme is also provided with an environment temperature threshold value M (span of M can be 27-35 DEG C), and for the different values of environment temperature, controls the rotating speed of blower fan 6 and the running status of compressor 1.
Particularly, first whether monitoring of environmental temperature T reaches preset value M, reaches preset value M when monitoring environment temperature T, namely during T>=M, and the electric current of the compressor 1 of the transformer monitoring dehumidifier of compressor 1 electric current.
The transformer of compressor 1 electric current can the electric current of compressor 1 of Real-Time Monitoring dehumidifier, also can the electric current of the interval scheduled time (such as 0.2s) monitoring compressor 1.
One, for blower fan 6, there are low wind shelves and high wind shelves two rotating speed gears, when the electric current monitoring compressor 1 does not reach the first predetermined threshold value A, the rotating speed of blower fan 6 is kept the low wind shelves of acquiescence.When monitoring the electric current I of compressor 1 higher than the first predetermined threshold value A, but when not exceeding compressor 1 second predetermined threshold value B, the rotating speed that controller controls blower fan 6 switches to high wind shelves by the low wind shelves given tacit consent to, to increase the heat radiation air quantity of condenser 5, reduce the pressure of condenser 5, thus reduce compression ratio and electric current, the wherein B>A in present embodiment of compressor 1.
Afterwards, transformer continues monitoring compressor 1 electric current.
Dehumidifier is after blower fan 6 adopts high wind shelves to run, and system pressure can decline.After dehumidifier is with the continuous service scheduled time after regulating rotation speed of fan, controller judges whether the electric current of compressor 1 is less than the first predetermined threshold value A and continues Preset Time; If so, be then low wind shelves by the adjustment of rotational speed of blower fan 6; If not, then dehumidifier continues to run, until judge that the electric current of compressor 1 is lower than the first predetermined threshold value and predetermined hold-time, and is low wind shelves by the adjustment of rotational speed of described blower fan 6.
In addition, when the electric current monitoring compressor 1 reaches the second predetermined threshold value B, stop compressor 1 to run, and be high wind shelves by the adjustment of rotational speed of blower fan 6; After compressor 1 cuts out setting-up time, restart compressor 1, the electric current of monitoring compressor 1, repeats the process of the rotating speed of the above-mentioned Current Control blower fan 6 according to compressor 1 simultaneously.
Such as, when monitoring the electric current I of compressor 1 higher than the first predetermined threshold value A, but when not exceeding compressor 1 second predetermined threshold value B, the rotating speed that controller controls blower fan 6 switches to high wind shelves by the low wind shelves given tacit consent to.Afterwards, when controller monitoring continues after 5 minutes to the electric current of compressor 1 lower than the first predetermined threshold value A, controller controls blower fan 6 and switches to low wind shelves.When the electric current monitoring compressor 1 reaches the second predetermined threshold value B, and when continuing 5 seconds, close compressor 1 by force, controller controls blower fan 6 and switches to the operation of high wind shelves.After compressor 1 cuts out 30 minutes, start compressor 1, monitor the electric current of compressor 1 simultaneously, repeat the process of the rotating speed of the above-mentioned Current Control blower fan 6 according to compressor 1.
By above-mentioned control operation, can effectively avoid causing compressor 1 stall to burn compressor 1 due to hypertonia and other causes the generation of compressor 1 electric current high fire accident.
Two, for blower fan 6, there is high, medium and low third gear rotating speed below, to the electric current of the compressor 1 that basis in present embodiment monitors, the principle that the rotating speed of the blower fan 6 of dehumidifier controls be described in detail:
According to the current value region of the compressor 1 of monitoring, determine the rotating speed of blower fan 6 correspondence and switch to the system pressure that corresponding rotating speed realizes reducing condenser 5, reach the object reducing compressor 1 load, simultaneously after the rotating speed switching blower fan 6, continuous service a period of time and then judge that the scope of electric current is whether still below safety electric flow valuve, if not, then operate according to wind speed before, until just switch to low wind shelves when reaching preset value, can prevent blower fan 6 from often switching wind speed and the fluctuation of electric current that brings like this, increase the stability of system.
Detailed process comprises A<I<A+Q situation processing procedure and A+2Q>I>A+Q situation processing procedure, is implemented as follows:
1, A<I<A+Q situation processing procedure:
When the electric current of compressor 1 meets A<I<A+Q, the rotating speed of described blower fan 6 is adjusted to apoplexy shelves by the low wind shelves given tacit consent to, wherein, A is the first predetermined threshold value, and the span of Q is [1,3];
At dehumidifier with in the continuous service scheduled time after regulating rotation speed of fan, judge whether the electric current of compressor 1 is less than A+Q; If so, then
After dehumidifier is with the continuous service scheduled time after regulating rotation speed of fan, judging whether the electric current of compressor 1 is less than A and predetermined hold-time, is then if so, low wind shelves by the adjustment of rotational speed of described blower fan 6; If not, then dehumidifier continues to run, until judge that the electric current of compressor 1 is lower than A and predetermined hold-time, and is low wind shelves by the adjustment of rotational speed of described blower fan 6.
2, A<I<A+Q situation processing procedure:
When the electric current of described compressor 1 meets A+2Q>I>A+Q, be high wind shelves by the adjustment of rotational speed of described blower fan 6;
At dehumidifier with in the continuous service scheduled time after regulating rotation speed of fan, judge whether the electric current of compressor 1 is less than A+2Q; If, then after dehumidifier is with the continuous service scheduled time after regulating rotation speed of fan, judge whether the electric current of compressor 1 is less than A+Q and predetermined hold-time, if, and A<I<A+Q, then by the situation processing procedure of aforementioned A<I<A+Q, if I<A and predetermined hold-time, be then low wind shelves by the adjustment of rotational speed of described blower fan 6; If the electric current of compressor 1 is greater than A+Q, then dehumidifier continues to run, until judge that the electric current of compressor 1 is lower than A+Q or A and predetermined hold-time, and is apoplexy shelves or low wind shelves by the adjustment of rotational speed of described blower fan 6.
In addition, when the electric current monitoring compressor 1 reaches the second predetermined threshold value B (B>A+2Q), stop compressor 1 to run, and be high wind shelves by the adjustment of rotational speed of described blower fan 6; After compressor 1 cuts out setting-up time, restart compressor 1, the electric current of monitoring compressor 1, repeats the above-mentioned process had according to the rotating speed of the Current Control blower fan 6 of compressor 1 in third gear process simultaneously.
In addition, when monitoring environment temperature and not reaching preset value, if monitor the electric current A<I<B of compressor 1, be apoplexy shelves or high wind shelves by the adjustment of rotational speed of described blower fan 6, after predetermined hold-time, if the electric current monitoring compressor 1 is not less than A, then compressor 1 is stopped to run; If monitor the electric current I <A of compressor 1, the rotating speed of described blower fan 6 is kept the low wind shelves of acquiescence.
Instantiation is as follows:
When environment temperature T>=M spends, find that compressor 1 electric current I is not higher than warning value A but when exceeding compressor 1 limiting value B, wherein the value of A and B can define according to actual conditions, as: A is [6,15], B is [10,20], specifically can be A=6, B=10; Or A=11, B=17; Or A=15, B=20:
Step 1, electric current is [1 in the span of A<I<A+Q[Q, 3] time], Q=2 in the present embodiment, start-up connector controls blower fan 6 and switches to apoplexy shelves, real-time monitoring compressor 1 electric current, continuous the scheduled time-span of C[C is [10, 18]] minute, electric current is less than A+Q, and every one minute, monitor current is compared with electric current upper one minute, in C minute, the latter is little than the former, then judge whether electric current arrives below A after C minute, if arrived, again judge whether after running above-mentioned C minute continuous the scheduled time-minute [span of D is [2 to D, 5] lower than A electric current] minute.Running lower than then switching to low wind shelves, higher than the scheduled time C minute that then reruns, until lower than A electric current, switching to low wind shelves and running; If in C minute the latter all large than the former or C minute in have electric current more than A+Q, then C minute rear fan 6 switches to high wind shelves continuous service, then every one minute, monitor current is compared with electric current upper one minute, if the latter is little than the former in C minute, then judge whether electric current arrives below A after C minute, if arrived, run after C minute, again judge whether in continuous D minute lower than A electric current.Be less than B then rerun C minute higher than A, until continuously in D minute lower than A electric current, switch to low wind shelves and run, if higher than B, then enter step 4.
If step 2 electric current is at A+2Q>I>A+Q.Wherein Q=2, start-up connector controls blower fan 6 and switches to high wind shelves, real-time monitoring compressor 1 electric current, in continuous C minute, electric current is not more than A+2Q, and every one minute, monitor current is compared with electric current upper one minute, in C minute, the latter is little than the former, then judge whether electric current arrives below A+Q after C minute, if arrived, runs and again judges whether lower than A+Q electric current after C minute.If electric current is at A<I<A+Q, performing step 1, if electric current I<A in continuous D minute, running lower than then switching to low wind shelves; As B>I>A in continuous D minute then reruns C minute, until continuously in D minute lower than A electric current; If the latter is large than the former in C minute, continue the running of high wind shelves.Continue monitor current, if continue F=1 in D minute B-F>I>B-2F[present embodiment], stop compressor 1 to run.Continue high wind to run, compressor 1 cuts out E minute [span of E is [30,45]] and starts compressor 1 afterwards and monitor compressor 1 electric current simultaneously, repeats the control of above-mentioned step 1-3.
Step 3, when monitoring compressor 1 electric current more than B, compressor 1 is stopped to run.Continue high wind shelves to run, after compressor 1 cuts out E minute, start compressor 1 and monitor compressor 1 electric current simultaneously, repeat above-mentioned steps 1-3 control procedure.
When environment temperature T<M spends, monitor compressor 1 electric current I higher than the first predetermined threshold value A but do not exceed compressor 1 Second Threshold B time, switch blower fan 6 and continue the operation of high wind, monitor current is when A<I, after predetermined hold-time (as 10 minutes), continuous Preset Time (as 2 minutes) interior electric current is not less than A electric current.Then stop compressor 1 to run, continue high wind shelves and run and give the alarm, send error code, if when I<A being detected, be switched to low wind and run, the situation of current fluctuation when can detect that compressor 1 just starts like this.
In present embodiment, high wind shelves run can refer to that wind speed is 800-1000 turns; High wind shelves and apoplexy shelves, and apoplexy shelves differ 150-250 with low wind shelves and turn.
The second embodiment: blower fan 6 can according to the current range value adjusting rotary speed detected in preset threshold range.Namely compare by the electric current of compressor that monitors and predetermined threshold value the regulated quantity determining rotation speed of fan; The rotating speed of regulated quantity to blower fan according to rotation speed of fan regulates until the current value of compressor reaches below preset value.
Be implemented as follows: the electric current of the described compressor monitored and predetermined threshold value are compared; When the electric current of the described compressor monitored is between the first predetermined threshold value A and the second predetermined threshold value B, according to the electric current of the compressor monitored, search default formula table, obtain the regulated quantity △ U of magnitude of voltage corresponding to blower fan, and then obtain magnitude of voltage U=UA+ △ U corresponding to blower fan; The magnitude of voltage of UA is the electric current of compressor blower fan corresponding when being the first predetermined threshold value A; The voltage of adjustment blower fan, to the magnitude of voltage of the correspondence of described acquisition, controls the rotating speed of described blower fan until the current value of compressor reaches below preset value.
Such as, by compressor 1 electric current between the first predetermined threshold value A and compressor 1 second predetermined threshold value B, often increase the magnitude of voltage that 1 Ampere currents determines corresponding blower fan 6, namely, magnitude of voltage based on compressor 1 electric current and blower fan 6 sets up a formula table, in this formula table, by electric current is corresponding blower fan 6 magnitude of voltage of the first predetermined threshold value A, often increase the magnitude of voltage that 1 Ampere currents defines corresponding blower fan 6, after monitoring compressor 1 electric current, search this publicity table, the magnitude of voltage of blower fan 6 correspondence can be obtained, the voltage of adjustment blower fan 6 is to corresponding magnitude of voltage, control the rotating speed of blower fan 6, thus, by regulating the rotating speed of the Control of Voltage blower fan 6 of motor, thus accurately regulate blower fan 6 rotating speed according to current value.
Instantiation is as follows:
When environment temperature T>=M spends, find that compressor 1 electric current I is not higher than warning value A but when exceeding compressor 1 limiting value B:
Step 11, electric current are when A<I<A+Q1, the span of Q1 is [1,3], Q1=1 in present embodiment, controller regulates blower fan 6 voltage, be that original { doubly [controller is adjusted to { 1+ (I-A)/Q1}U by corresponding for the voltage at motor two ends to 1+ (I-A)/Q1} by adjustment of rotational speed, the magnitude of voltage of wherein U is electric current blower fan 6 corresponding when being A, thus reach the object regulating blower fan 6 rotating speed, when at this moment blower fan 6 rotating speed is A electric current rotating speed 1+ (I-A)/Q1} is doubly].Real-time monitoring compressor 1 electric current, in continuous C minute, electric current is not more than A+Q1, and every one minute, monitor current is compared with electric current upper one minute, in C minute, the latter is little than the former, then judge whether electric current arrives below A after C minute, if arrived, run and again judge whether in continuous D minute lower than A after C minute.Realize low cruise lower than then blower fan 6 voltage switching to (I/A) U, higher than the C minute that then reruns, until lower than A electric current, blower fan 6 voltage switching is carried out low cruise to (I/A) U.If the latter is little than the former in C minute, then judge whether electric current arrives below A after C minute, if arrived, run and again judge whether in continuous D minute lower than A after C minute.Be less than B higher than A then to rerun C minute, until continuously in D minute lower than A, blower fan 6 voltage switching is realized low cruise to (I/A) U, if higher than B, then enters step 33.
If step 22 electric current is at A+2Q1>I>A+Q1.Start-up connector controls blower fan 6 and switches to { 1+ (I-A)/Q1} times of rotating speed operation, real-time monitoring compressor 1 electric current, in continuous C minute, electric current is not more than A+2Q1, and every one minute, monitor current is compared with electric current upper one minute, in C minute, the latter is little than the former, then judge whether electric current arrives below A+2Q1 after C minute, if arrived, run and again judge whether lower than A+2Q1 electric current after C minute.If electric current is at A<I<A+Q1, perform step 11, if be less than A+2Q1 higher than A+Q1, reruning enters step 22 in C minute and circulates, until lower than A electric current in continuous D minute, switch to low wind shelves [i.e. (I/A) U] to run, if higher than B, then enter step 33.
A+3Q1>I>A+2Q1.......... is until monitor current continues D minute more than B-F>I>B-2F by that analogy, stops compressor 1 to run.Blower voltage is switched to (I/B) U1 and continues high-speed cruising, the voltage of wherein U1 is electric current when being B blower fan, compressor 1 starts compressor 1 and monitors compressor 1 electric current simultaneously after cutting out E minute, repeat above-mentioned control.
Step 33, when monitoring compressor 1 electric current is more than B, compressor 1 is stopped to run, B>A+2Q1 in present embodiment.By the voltage switching of blower fan 6 for { I/B}*U1 continues high-speed cruising, after compressor 1 cuts out E minute, starts compressor 1 and monitors compressor 1 electric current, repeat the control procedure of above-mentioned steps 11-33 simultaneously.
When environment temperature T<M spends, during monitor current A<I<B, the voltage switching blower fan 6 is that { I/B}*U1 runs, monitor current is when A<I, after predetermined hold-time (as 10 minutes), the continuous scheduled time (as 2 minutes) interior electric current is not less than A electric current.Then stop compressor 1 to run, switch the voltage of blower fan 6 for { I/B}*U1 high-speed cruising and giving the alarm sends error code.
The present embodiment passes through such scheme, by monitoring the electric current of the compressor 1 of dehumidifier, according to the electric current of the compressor 1 monitored, the rotating speed of the blower fan 6 of dehumidifier is controlled, and then realize accurate control to compressor 1, prevent from, because system pressure is too high and cause the compressor 1 that burns on fire, improving safety in utilization and the stability of a system of compressor 1, and the assembling of this dehumidifier is simple, easy to use.
As shown in Figure 2, present pre-ferred embodiments proposes a kind of dehumidifier compressor protection control method, and implement based on the dehumidifier described in above-described embodiment, this control method comprises:
Step S101, when monitoring environment temperature and reaching preset value, the electric current of the compressor of monitoring dehumidifier;
Step S102, according to the electric current of the described compressor monitored, controls the rotating speed of the blower fan of dehumidifier.
As previously mentioned, compressor is as the important component of dehumidifier, and its safety in utilization is particularly important.And environment temperature too high be the one of the main reasons causing system pressure too high, when environment temperature raises, the pressure of condenser will raise, the pressure increase of compressor, now the delivery temperature of compressor and electric current also can constantly raise, when electric current reaches certain value, the binding post place of compressor easily produces spark phenomenon, causes the generation of fire.
The present embodiment scheme by regulating rotation speed of fan to the monitoring of electric current, and then adjusts the running status of compressor, can reach reduction system pressure, the final object reducing compressor current.
In the present embodiment, the first embodiment of step S102 is by pre-setting multiple gear to realize, such as low wind shelves and high wind shelves (common shelves and strong strength grade) two gears, or high, medium and low wind three gears, or more gears.Present embodiment will be illustrated with two gears and three gears respectively.
In order to monitor the electric current in compressor operating, the present embodiment has set up transformer on the control circuitry, real-time by transformer or monitor interval time in compressor operating electric current, and current settings to blower fan two electric current warning values, first predetermined threshold value A and the second predetermined threshold value B, wherein B>A, the rotating speed of electric current to blower fan of the compressor then monitored according to transformer by controller controls.
Concrete control procedure is as follows:
When dehumidifier receives open command, first judge that whether indoor humidity is lower than setting humidity (indoor humidity can be detected by corresponding sensor), if indoor humidity is lower than setting humidity, then do not open dehumidifier, monitoring is until when indoor humidity is higher than setting humidity repeatedly, open compressor and the blower fan of dehumidifier, and after giving tacit consent to dehumidifier unlatching, blower fan runs with low wind shelves (common shelves).
As previously mentioned, environment temperature is too high is the one of the main reasons causing system pressure too high, and therefore, the present embodiment scheme also needs to detect environment temperature T, this environment temperature T is indoor environment temperature, can be obtained by the temperature sensor measurement be arranged on evaporimeter air inlet position.
Judge whether system is cause the electric current of compressor high because environment temperature is high according to the environment temperature T detected like this, or the abnormal compressor current caused of compressor is high.
Thus, the present embodiment scheme is also provided with an environment temperature threshold value M (span of M can be 27-35 DEG C), and for the different values of environment temperature, controls the rotating speed of blower fan and the running status of compressor.
Particularly, first whether monitoring of environmental temperature T reaches preset value M, reaches preset value M when monitoring environment temperature T, namely during T>=M, and the electric current of the compressor of the transformer monitoring dehumidifier of compressor current.
The transformer of compressor current can the electric current of compressor of Real-Time Monitoring dehumidifier, also can the electric current of the interval scheduled time (such as 0.2s) monitoring compressor.
One, for blower fan, there are low wind shelves and high wind shelves two rotating speed gears, when the electric current monitoring compressor does not reach the first predetermined threshold value A, the rotating speed of blower fan is kept the low wind shelves of acquiescence.When monitoring the electric current I of compressor higher than the first predetermined threshold value A, but when not exceeding compressor the second predetermined threshold value B, the rotating speed that controller controls blower fan switches to high wind shelves by the low wind shelves given tacit consent to, to increase the heat radiation air quantity of condenser, reduce the pressure of condenser, thus reduce compression ratio and electric current, the wherein B>A in present embodiment of compressor.
Afterwards, transformer continues monitoring compressor current.
Dehumidifier is after blower fan adopts high wind shelves to run, and system pressure can decline.After dehumidifier is with the continuous service scheduled time after regulating rotation speed of fan, controller judges whether the electric current of compressor is less than the first predetermined threshold value A and continues Preset Time; If so, be then low wind shelves by the adjustment of rotational speed of blower fan; If not, then dehumidifier continues to run, until judge that the electric current of compressor is lower than the first predetermined threshold value and predetermined hold-time, and is low wind shelves by the adjustment of rotational speed of described blower fan.
In addition, when the electric current monitoring compressor reaches the second predetermined threshold value B, stop compressor operating, and be high wind shelves by the adjustment of rotational speed of blower fan; After compressor cuts out setting-up time, restart compressor, the electric current of monitoring compressor, repeats the process of the rotating speed of the above-mentioned Current Control blower fan according to compressor simultaneously.
Such as, when monitoring the electric current I of compressor higher than the first predetermined threshold value A, but when not exceeding compressor the second predetermined threshold value B, the rotating speed that controller controls blower fan switches to high wind shelves by the low wind shelves given tacit consent to.Afterwards, when controller monitoring continues after 5 minutes to the electric current of compressor lower than the first predetermined threshold value A, controller controls PAU+FCU system and becomes low wind shelves.When the electric current monitoring compressor reaches the second predetermined threshold value B, and when continuing 5 seconds, close compressor by force, controller controls PAU+FCU system Cheng Gaofeng shelves and runs.After compressor cuts out 30 minutes, start compressor, monitor the electric current of compressor simultaneously, repeat the process of the rotating speed of the above-mentioned Current Control blower fan according to compressor.
By above-mentioned control operation, can effectively avoid causing compressor stall to burn compressor due to hypertonia and other causes the generation of compressor current high fire accident.
For blower fan, there is high, medium and low third gear rotating speed below, to the electric current of the compressor that basis in present embodiment monitors, the principle that the rotating speed of the blower fan of dehumidifier controls be described in detail:
According to the current value region of the compressor of monitoring, determine the rotating speed that blower fan is corresponding and switch to the system pressure that corresponding rotating speed realizes reducing condenser, reach the object reducing compressor load, simultaneously after the rotating speed switching blower fan, continuous service a period of time and then judge that the scope of electric current is whether still below safety electric flow valuve, if not, then operate according to wind speed before, until just switch to low wind shelves when reaching preset value, can prevent blower fan from often switching wind speed and the fluctuation of electric current that brings like this, increase the stability of system.
Detailed process comprises A<I<A+Q situation processing procedure and A+2Q>I>A+Q situation processing procedure, is implemented as follows:
1, A<I<A+Q situation processing procedure:
When the electric current of compressor meets A<I<A+Q, the rotating speed of described blower fan is adjusted to apoplexy shelves by the low wind shelves given tacit consent to, wherein, A is the first predetermined threshold value, Q be more than or equal to 1 integer;
At dehumidifier with in the continuous service scheduled time after regulating rotation speed of fan, judge whether the electric current of compressor is less than A+Q; If so, then
After dehumidifier is with the continuous service scheduled time after regulating rotation speed of fan, judging whether the electric current of compressor is less than A and predetermined hold-time, is if so, then low wind shelves by the adjustment of rotational speed of described blower fan; If not, then dehumidifier continues to run, until judge that the electric current of compressor is lower than A and predetermined hold-time, and is low wind shelves by the adjustment of rotational speed of described blower fan.
2, A+2Q>I>A+Q situation processing procedure:
When the electric current of described compressor meets A+2Q>I>A+Q, be high wind shelves by the adjustment of rotational speed of described blower fan;
At dehumidifier with in the continuous service scheduled time after regulating rotation speed of fan, judge whether the electric current of compressor is less than A+2Q; If, then after dehumidifier is with the continuous service scheduled time after adjusting rotation speed of fan, judge whether the electric current of compressor is less than A+Q and predetermined hold-time, if, and A<I<A+Q, then by the situation processing procedure of aforementioned A<I<A+Q, if I<A and predetermined hold-time, be then low wind shelves by the adjustment of rotational speed of described blower fan; If the electric current of compressor is greater than A+Q, then dehumidifier continues to run, until judge that the electric current of compressor is lower than A+Q or A and predetermined hold-time, and is apoplexy shelves or low wind shelves by the adjustment of rotational speed of described blower fan.
In addition, when the electric current monitoring compressor reaches the second predetermined threshold value B (B>A+2Q), stop compressor operating, and be high wind shelves by the adjustment of rotational speed of described blower fan; After compressor cuts out setting-up time, restart compressor, the electric current of monitoring compressor, repeats the above-mentioned process had according to the rotating speed of the Current Control blower fan of compressor in third gear process simultaneously.
In addition, when monitoring environment temperature and not reaching preset value, if monitor the electric current A<I<B of compressor, be apoplexy shelves or high wind shelves by the adjustment of rotational speed of described blower fan, after predetermined hold-time, if the electric current monitoring compressor is not less than A, then stop compressor operating; If monitor the electric current I <A of compressor, the rotating speed of described blower fan is kept the low wind shelves of acquiescence.
Instantiation is as follows:
When environment temperature T>=M spends, discovery compressor current I is higher than warning value A but when not exceeding compressor limiting value B, wherein the value of A and B can define according to actual conditions, as: A is [6,15], and B is [10,20], specifically can be A=6, B=10; Or A=11, B=17; Or A=15, B=20:
Step 1, electric current is [1 in the span of A<I<A+Q[Q, 3] time], Q=2 in the present embodiment, start-up connector controls PAU+FCU system and becomes apoplexy shelves, real-time monitoring compressor current, continuous the scheduled time-span of C[C is [10, 18]] minute, electric current is less than A+Q, and every one minute, monitor current is compared with electric current upper one minute, in C minute, the latter is little than the former, then judge whether electric current arrives below A after C minute, if arrived, again judge whether after running above-mentioned C minute continuous the scheduled time-minute [span of D is [2 to D, 5] lower than A electric current] minute.Running lower than then switching to low wind shelves, higher than the scheduled time C minute that then reruns, until lower than A electric current, switching to low wind shelves and running; If in C minute the latter all large than the former or C minute in have electric current more than A+Q, then C minute rear fan switches to high wind shelves continuous service, then every one minute, monitor current is compared with electric current upper one minute, if the latter is little than the former in C minute, then judge whether electric current arrives below A after C minute, if arrived, run after C minute, again judge whether in continuous D minute lower than A electric current.Be less than B then rerun C minute higher than A, until continuously in D minute lower than A electric current, switch to low wind shelves and run, if higher than B, then enter step 3.
If step 2 electric current is at A+2Q>I>A+Q.Wherein Q=2, start-up connector controls PAU+FCU system Cheng Gaofeng shelves, real-time monitoring compressor current, in continuous C minute, electric current is not more than A+2Q, and every one minute, monitor current is compared with electric current upper one minute, in C minute, the latter is little than the former, then judge whether electric current arrives below A+Q after C minute, if arrived, runs and again judges whether lower than A+Q electric current after C minute.If electric current is at A<I<A+Q, performing step 1, if electric current I<A in continuous D minute, running lower than then switching to low wind shelves; As B>I>A in continuous D minute then reruns C minute, until continuously in D minute lower than A electric current; If the latter is large than the former in C minute, continue the running of high wind shelves.Continue monitor current, if continue F=1 in D minute B-F>I>B-2F[present embodiment], stop compressor operating.Continue high wind to run, compressor cut out E minute [span of E is [30,45]] starts compressor afterwards and monitors compressor current simultaneously, repeats the control of above-mentioned step 1-3.
Step 3, when monitor compressor current more than B time, stop compressor operating.Continue high wind shelves to run, compressor cuts out after E minute, starts compressor and monitors compressor current simultaneously, repeat above-mentioned steps 1-3 control procedure.
When environment temperature T<M spends, monitor compressor current I higher than the first predetermined threshold value A but do not exceed compressor Second Threshold B time, switch blower fan and continue the operation of high wind, monitor current is when A<I, after predetermined hold-time (as 10 minutes), continuous Preset Time (as 2 minutes) interior electric current is not less than A electric current.Then stop compressor operating, continue high wind shelves and run and give the alarm, send error code, if when I<A being detected, be switched to low wind and run, the situation of current fluctuation when can detect that compressor just starts like this.
In present embodiment, high wind shelves run can refer to that wind speed is 800-1000 turns; High wind shelves and apoplexy shelves, and apoplexy shelves differ 150-250 with low wind shelves and turn.
The second embodiment: blower fan can according to the current range value adjusting rotary speed detected in preset threshold range.Namely compare by the electric current of compressor that monitors and predetermined threshold value the regulated quantity determining rotation speed of fan; The rotating speed of regulated quantity to blower fan according to rotation speed of fan regulates until the current value of compressor reaches below preset value.
Be implemented as follows: the electric current of the described compressor monitored and predetermined threshold value are compared; When the electric current of the described compressor monitored is between the first predetermined threshold value A and the second predetermined threshold value B, according to the electric current of the compressor monitored, search default formula table, obtain the regulated quantity △ U of magnitude of voltage corresponding to blower fan, and then obtain magnitude of voltage U=UA+ △ U corresponding to blower fan; The magnitude of voltage of UA is the electric current of compressor blower fan corresponding when being the first predetermined threshold value A; The voltage of adjustment blower fan, to the magnitude of voltage of the correspondence of described acquisition, controls the rotating speed of described blower fan until the current value of compressor reaches below preset value.
Such as, by compressor current between the first predetermined threshold value A and compressor second predetermined threshold value (limiting value) B, often increase the magnitude of voltage that 1 Ampere currents determines corresponding blower fan, namely, magnitude of voltage based on compressor current and blower fan sets up a formula table, in this formula table, by electric current is the corresponding blower voltage value of the first predetermined threshold value A, often increase the magnitude of voltage that 1 Ampere currents defines corresponding blower fan, after monitoring compressor current, search this publicity table, the magnitude of voltage that blower fan is corresponding can be obtained, the voltage of adjustment blower fan is to corresponding magnitude of voltage, control the rotating speed of blower fan, thus, by regulating the rotating speed of the Control of Voltage blower fan of motor, thus accurately regulate rotation speed of fan according to current value.
Instantiation is as follows:
When environment temperature T>=M spends, find that compressor current I is not higher than warning value A but when exceeding compressor limiting value B:
Step 11, electric current are when A<I<A+Q1, the span of Q1 is [1,3], Q1=1 in present embodiment, controller regulates blower voltage, be that original { doubly [voltage by motor two ends is corresponding is adjusted to { 1+ (I-A)/Q1}U to 1+ (I-A)/Q1} by adjustment of rotational speed, the magnitude of voltage of wherein U is electric current blower fan corresponding when being A, thus reach and regulate the object of rotation speed of fan, when at this moment rotation speed of fan is A electric current rotating speed 1+ (I-A)/Q1} is doubly].Real-time monitoring compressor current, in continuous C minute, electric current is not more than A+Q1, and every one minute, monitor current is compared with electric current upper one minute, in C minute, the latter is little than the former, then judge whether electric current arrives below A after C minute, if arrived, run and again judge whether in continuous D minute lower than A after C minute.Be switched to (I/A) U low cruise lower than then blower voltage, higher than the C minute that then reruns, until lower than A electric current, blower voltage be switched to (I/A) U and carry out low cruise.If the latter is little than the former in C minute, then judge whether electric current arrives below A after C minute, if arrived, run and again judge whether in continuous D minute lower than A after C minute.Be less than B higher than A then to rerun C minute, until continuously in D minute lower than A, blower voltage is switched to (I/A) U and realizes low cruise, if higher than B, then enter step 33.
If step 22 electric current is at A+2Q1>I>A+Q1.Start-up connector controls PAU+FCU system and becomes { 1+ (I-A)/Q1} times of rotating speed operation, real-time monitoring compressor current, in continuous C minute, electric current is not more than A+2Q1, and every one minute, monitor current is compared with electric current upper one minute, in C minute, the latter is little than the former, then judge whether electric current arrives below A+2Q1 after C minute, if arrived, run and again judge whether lower than A+2Q1 electric current after C minute.If electric current is at A<I<A+Q1, perform step 11, if be less than A+2Q1 higher than A+Q1, reruning enters step 22 in C minute and circulates, until lower than A electric current in continuous D minute, switch to low wind shelves [i.e. (I/A) U] to run, if higher than B, then enter step 33.
A+3Q1>I>A+2Q1.......... is until monitor current continues D minute more than B-F>I>B-2F by that analogy, stops compressor operating.Blower voltage is switched to (I/B) U1 and continues high-speed cruising, the voltage of wherein U1 is electric current when being B blower fan, compressor cuts out and starts compressor after E minute and monitor compressor current simultaneously, repeats above-mentioned control.
Step 33, when monitoring compressor current more than B, B>A+2Q1 in present embodiment, stop compressor operating.By the voltage switching of blower fan for { I/B}*U1 continues high-speed cruising, and compressor cuts out after E minute, starts compressor and monitors compressor current, repeat the control procedure of above-mentioned steps 11-33 simultaneously.
When environment temperature T<M spends, during monitor current A<I<B, the voltage switching blower fan is that { I/B}*U1 runs, monitor current is when A<I, after predetermined hold-time (as 10 minutes), the continuous scheduled time (as 2 minutes) interior electric current is not less than A electric current.Then stop compressor operating, switch the voltage of blower fan for { I/B}*U1 high-speed cruising and giving the alarm sends error code.
The present embodiment passes through such scheme, by monitoring the electric current of the compressor of dehumidifier, according to the electric current of the compressor monitored, the rotating speed of the blower fan of dehumidifier is controlled, and then realize accurate control to compressor, prevent from, because system pressure is too high and cause the compressor that burns on fire, improving safety in utilization and the stability of a system of compressor, and the assembling of this dehumidifier is simple, easy to use.
The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention and accompanying drawing content to do equivalent structure or flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (13)
1. a dehumidifier compressor protection control method, is characterized in that, comprises the following steps:
When monitoring environment temperature and reaching preset value, the electric current of the compressor of monitoring dehumidifier;
According to the electric current of the described compressor monitored, the rotating speed of the blower fan of dehumidifier is controlled.
2. method according to claim 1, is characterized in that, the electric current of the described compressor that described basis monitors, comprises the step that the rotating speed of the blower fan of dehumidifier controls:
The rotating speed determining blower fan is compared by the electric current of described compressor that monitors and predetermined threshold value; Rotating speed according to blower fan regulates until the current value of compressor reaches below preset value to dehumidifier; Or, compare by the electric current of described compressor that monitors and predetermined threshold value the regulated quantity determining rotation speed of fan; The rotating speed of regulated quantity to blower fan according to rotation speed of fan regulates until the current value of compressor reaches below preset value.
3. method according to claim 2, is characterized in that, the rotating speed of described blower fan has low wind shelves and high wind shelves, and electric current and the predetermined threshold value of the described described compressor by monitoring compare the rotating speed determining blower fan; Rotating speed according to blower fan regulates until the step that the current value of compressor reaches below preset value comprises to dehumidifier:
Judge whether the electric current of compressor reaches the first predetermined threshold value A;
When the electric current of described compressor reaches the first predetermined threshold value A, the rotating speed of described blower fan is adjusted to high wind shelves by the low wind shelves given tacit consent to;
After dehumidifier is with the high wind shelves rotation speed of fan continuous service scheduled time, judge whether the electric current of compressor is less than the first predetermined threshold value;
If so, be then low wind shelves by the adjustment of rotational speed of described blower fan;
If not, then dehumidifier continues to run, until judge that the electric current of compressor is lower than the first predetermined threshold value and predetermined hold-time, and is low wind shelves by the adjustment of rotational speed of described blower fan.
4. method according to claim 2, is characterized in that, during the rotating speed of described blower fan has, low wind shelves, electric current and the predetermined threshold value of the described described compressor by monitoring compare the rotating speed determining blower fan; Rotating speed according to blower fan regulates until the step that the current value of compressor reaches below preset value comprises to dehumidifier:
The situation processing procedure of A<I<A+Q, specifically comprises:
When the electric current of described compressor meets A<I<A+Q, the rotating speed of described blower fan is adjusted to apoplexy shelves by the low wind shelves given tacit consent to, wherein, A is the first predetermined threshold value, Q be more than or equal to 1 integer;
At dehumidifier with in the continuous service scheduled time after regulating rotation speed of fan, judge whether the electric current of compressor is less than A+Q; If so, then
After dehumidifier is with the continuous service scheduled time after regulating rotation speed of fan, judging whether the electric current of compressor is less than A and predetermined hold-time, is if so, then low wind shelves by the adjustment of rotational speed of described blower fan; If not, then dehumidifier continues to run, until judge that the electric current of compressor is lower than A and predetermined hold-time, and is low wind shelves by the adjustment of rotational speed of described blower fan.
5. method according to claim 4, is characterized in that, the rotating speed of described blower fan has high wind shelves, and electric current and the predetermined threshold value of the described described compressor by monitoring compare the rotating speed determining blower fan; Rotating speed according to blower fan regulates until the step that the current value of compressor reaches below preset value further comprises to dehumidifier:
The situation processing procedure of A+2Q>I>A+Q, specifically comprises:
When the electric current of described compressor meets A+2Q>I>A+Q, be high wind shelves by the adjustment of rotational speed of described blower fan;
At dehumidifier with in the continuous service scheduled time after regulating rotation speed of fan, judge whether the electric current of compressor is less than A+2Q; If so, then
After dehumidifier is with the continuous service scheduled time after regulating rotation speed of fan, judge whether the electric current of compressor is less than A+Q and predetermined hold-time, if, and A<I<A+Q, then press the situation process of A<I<A+Q, if I<A and predetermined hold-time, be then low wind shelves by the adjustment of rotational speed of described blower fan; If the electric current of compressor is greater than A+Q, then dehumidifier continues to run, until judge that the electric current of compressor is lower than A+Q or A and predetermined hold-time, and is apoplexy shelves or low wind shelves by the adjustment of rotational speed of described blower fan.
6. method according to claim 2, is characterized in that, electric current and the predetermined threshold value of the described described compressor by monitoring compare the regulated quantity determining rotation speed of fan; Regulate until the step that the current value of compressor reaches below preset value comprises according to the rotating speed of regulated quantity to blower fan of rotation speed of fan:
The electric current of the described compressor monitored and predetermined threshold value are compared;
When the electric current of the described compressor monitored is between the first predetermined threshold value A and the second predetermined threshold value B, according to the electric current of the compressor monitored, search default formula table, obtain the regulated quantity △ U of magnitude of voltage corresponding to blower fan, and then obtain magnitude of voltage U=UA+ △ U corresponding to blower fan; The magnitude of voltage of UA is the electric current of compressor blower fan corresponding when being the first predetermined threshold value A;
The voltage of adjustment blower fan, to the magnitude of voltage of the correspondence of described acquisition, controls the rotating speed of described blower fan until the current value of compressor reaches below preset value.
7. the method according to any one of claim 2-5, is characterized in that,
When the electric current monitoring described compressor reaches the second predetermined threshold value B, stop compressor operating, and be high wind shelves by the adjustment of rotational speed of described blower fan; Wherein, A<B;
After compressor cuts out setting-up time, restart compressor, simultaneously the electric current of monitoring compressor, and enter step: according to the electric current of the described compressor monitored, the rotating speed of the blower fan of dehumidifier is controlled.
8. method according to claim 1, is characterized in that, also comprises:
When monitoring environment temperature and not reaching preset value, if monitor the electric current A<I<B of compressor, be apoplexy shelves or high wind shelves by the adjustment of rotational speed of described blower fan, after predetermined hold-time, if the electric current monitoring compressor is not less than A, then stop compressor operating; If monitor the electric current I <A of compressor, the rotating speed of described blower fan is kept the low wind shelves of acquiescence.
9. a dehumidifier, comprise the compressor, evaporimeter, throttling arrangement, the condenser that are interconnected to constitute major loop, described condenser is provided with blower fan, it is characterized in that, also comprise the transformer for monitoring described compressor current, and the electric current of compressor for monitoring according to described transformer, to the controller that the rotating speed of described blower fan controls.
10. dehumidifier according to claim 9, is characterized in that,
Described controller, also compares for the electric current of the described compressor by monitoring and predetermined threshold value the rotating speed determining blower fan; Rotating speed according to blower fan regulates until the current value of compressor reaches below preset value to dehumidifier; Or, compare by the electric current of described compressor that monitors and predetermined threshold value the regulated quantity determining rotation speed of fan; The rotating speed of regulated quantity to blower fan according to rotation speed of fan regulates until the current value of compressor reaches below preset value.
11. dehumidifiers according to claim 10, is characterized in that, the rotating speed of described blower fan has low wind shelves and high wind shelves, and described controller is also for judging whether the electric current of compressor reaches the first predetermined threshold value A; When the electric current of described compressor reaches the first predetermined threshold value A, the rotating speed of described blower fan is adjusted to high wind shelves by the low wind shelves given tacit consent to; And also for after dehumidifier is with the high wind shelves rotation speed of fan continuous service scheduled time, judge whether the electric current of compressor is less than the first predetermined threshold value; If so, be then low wind shelves by the adjustment of rotational speed of described blower fan; If not, then system continues to run, until judge that the electric current of compressor is lower than the first predetermined threshold value and predetermined hold-time, and is low wind shelves by the adjustment of rotational speed of described blower fan.
12. dehumidifiers according to claim 10, it is characterized in that, during the rotating speed of described blower fan has, low wind shelves, described controller is when the situation of A<I<A+Q, also for the rotating speed of described blower fan is adjusted to apoplexy shelves by the low wind shelves given tacit consent to, wherein, A is the first predetermined threshold value, Q be more than or equal to 1 integer;
At dehumidifier with in the continuous service scheduled time after regulating rotation speed of fan, judge whether the electric current of compressor is less than A+Q; If so, then
After dehumidifier is with the continuous service scheduled time after regulating rotation speed of fan, judging whether the electric current of compressor is less than A and predetermined hold-time, is if so, then low wind shelves by the adjustment of rotational speed of described blower fan; If not, then dehumidifier continues to run, until judge that the electric current of compressor is lower than A and predetermined hold-time, and is low wind shelves by the adjustment of rotational speed of described blower fan;
When the situation of A+2Q>I>A+Q, described controller is also for being high wind shelves by the adjustment of rotational speed of described blower fan;
At dehumidifier with in the continuous service scheduled time after regulating rotation speed of fan, judge whether the electric current of compressor is less than A+2Q; If so, then
After dehumidifier is with the continuous service scheduled time after regulating rotation speed of fan, judge whether the electric current of compressor is less than A+Q and predetermined hold-time, if, and A<I<A+Q, then press the situation process of A<I<A+Q, if I<A and predetermined hold-time, be then low wind shelves by the adjustment of rotational speed of described blower fan; If the electric current of compressor is greater than A+Q, then dehumidifier continues to run, until judge that the electric current of compressor is lower than A+Q or A and predetermined hold-time, and is apoplexy shelves or low wind shelves by the adjustment of rotational speed of described blower fan.
13. dehumidifiers according to claim 10, is characterized in that,
Described controller is also for comparing the electric current of the described compressor monitored and predetermined threshold value; When the electric current of the described compressor monitored is between the first predetermined threshold value A and the second predetermined threshold value B, according to the electric current of the compressor monitored, search default formula table, obtain the regulated quantity △ U of magnitude of voltage corresponding to blower fan, and then obtain magnitude of voltage U=UA+ △ U corresponding to blower fan; The magnitude of voltage of UA is the electric current of compressor blower fan corresponding when being the first predetermined threshold value A; The voltage of adjustment blower fan, to the magnitude of voltage of the correspondence of described acquisition, controls the rotating speed of described blower fan until the current value of compressor reaches below preset value.
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