CN105627493A

CN105627493A - Protection control method for dehumidifier compressor and dehumidifier

Info

Publication number: CN105627493A
Application number: CN201410588556.7A
Authority: CN
Inventors: 陈城彬; 张先雄; 周广兵; 吴天彤; 陈洋
Original assignee: TCL Air Conditioner Zhongshan Co Ltd
Current assignee: TCL Air Conditioner Zhongshan Co Ltd
Priority date: 2014-10-27
Filing date: 2014-10-27
Publication date: 2016-06-01
Anticipated expiration: 2034-10-27
Also published as: CN105627493B

Abstract

The invention relates to a protection control method for a dehumidifier compressor and a dehumidifier. The dehumidifier is provided with a lateral surface air inlet and a front surface air inlet. When the dehumidifier is started, the lateral surface air inlet is closed, and the front surface air inlet is opened. The temperature T of a condenser outer coil pipe of the dehumidifier is detected. When the temperature T of the outer coil pipe is within a set threshold value range, the lateral surface air inlet is opened within the threshold value range, and the opening degree of the front surface air inlet is controlled to adjust the current of the compressor. By means of the protection control method for the dehumidifier compressor and the dehumidifier, the situation that the compressor is burnt out due to too high pressure of a system can be prevented, and the use safety and system stability of the compressor are improved.

Description

Dehumidifier compressor protection control method and dehumidifier

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. Compressor is as the important component of dehumidifier, and its safety in utilization is particularly important. And ambient temperature too high be the one of the main reasons causing system pressure too high, when ambient temperature raises, system pressure will raise, and causes that the pressure of compressor rises, and now the delivery temperature of compressor and electric current also can constantly raise. If compressor long-play is under high loads, then easilys lead to compressor stall and burn. It addition, when electric current reaches certain value, the binding post place of compressor easily produces spark phenomenon, causes the generation of fire. Therefore, it is necessary to the compressor of dehumidifier is carried out electric current control.

Summary of the invention

Present invention is primarily targeted at a kind of dehumidifier compressor protection control method of offer and dehumidifier, it is intended to improve the safety in utilization of dehumidifier compressor.

In order to achieve the above object; the present invention proposes a kind of dehumidifier compressor protection control method; described dehumidifier has side air inlet mouth and front air intake vent; front air intake vent is positioned at the windward side of vaporizer; side air inlet mouth is arranged on dehumidifier side just to the gap location between condenser and vaporizer, and the method comprises the following steps:

After dehumidifier starts, close side air inlet, open front air intake vent;

The temperature T of the outer coil pipe of detection condenser of dehumidifier;

When the temperature T of described outer coil pipe is in setting threshold range, open side air inlet in threshold range setting, and control the aperture of described front air intake vent, to regulate compressor current.

Preferably, described side air inlet mouth is provided with side wind deflector, and front air intake vent is provided with multiple air intake vent wind deflector; Described opening side air inlet setting in threshold range when the temperature T of outer coil pipe is in setting threshold range, and controls the aperture of described front air intake vent, the step to regulate compressor current includes:

When the temperature T of outer coil pipe reaches the first predetermined threshold value A and during less than the second pre-set threshold value B, open side wind deflector, and close the air intake vent wind deflector of respective numbers; Wherein, A < B;

After dehumidifier then runs the scheduled time, it is judged that the temperature T of outer coil pipe whether reach compressor properly functioning time corresponding temperature threshold C; If so, then judge that compressor current reaches normal value, close side wind deflector, the air intake vent wind deflector of either on or off; Otherwise

Increase the quantity of air intake vent wind deflector closed, until the temperature T of outer coil pipe reach compressor properly functioning time corresponding temperature threshold C, make compressor current reach normal value, and close side wind deflector, the air intake vent wind deflector of either on or off.

Preferably, described opening side air inlet setting in threshold range when the temperature T of outer coil pipe is in setting threshold range, and controls the aperture of described front air intake vent, the step to regulate compressor current farther includes:

The situation processing procedure of A < T < A+Q1, specifically includes:

< during A+Q1, open side wind deflector when the temperature T of outer coil pipe meets A < T, close an air intake vent wind deflector; Wherein, A is the first predetermined threshold value, and Q1 is the integer more than or equal to 1, A+Q1 < B;

After dehumidifier then runs the scheduled time, it is judged that the temperature T of outer coil pipe whether reach compressor properly functioning time corresponding temperature threshold C and predetermined hold-time; If so, then judge when compressor current reaches normal value, close side wind deflector, the air intake vent wind deflector of either on or off; Otherwise

Turn off an air intake vent wind deflector;

After dehumidifier then runs the scheduled time, it is judged that the temperature T of outer coil pipe whether reach compressor properly functioning time corresponding temperature threshold C and predetermined hold-time; If so, then judge when compressor current reaches normal value, close side wind deflector, the air intake vent wind deflector of either on or off; Otherwise, continue to increase the quantity of air intake vent wind deflector closed, until the temperature T of outer coil pipe reach compressor properly functioning time corresponding temperature threshold C, make compressor current reach normal value, and close side wind deflector, the air intake vent wind deflector of either on or off.

The situation processing procedure of A+Q1��T < A+Q2, specifically includes:

< during A+Q2, open side wind deflector when the temperature T of outer coil pipe meets A+Q1��T, close two air intake vent wind deflectors; Wherein, A is the first predetermined threshold value, and Q1, Q2 are the integer more than or equal to 1, Q1 < Q2, A+Q2 < B;

Turn off an air intake vent wind deflector;

Preferably, described front air intake vent is circular, the air quantity that the air quantity that the both sides air intake vent wind deflector of described front air intake vent controls controls less than middle air intake vent wind deflector.

After the scheduled time that dehumidifier then runs, when judging corresponding time properly functioning not up to compressor for the temperature T temperature threshold C of outer coil pipe, it is judged that the trend of the temperature T of coil pipe inside and outside the described scheduled time;

If the temperature T of outer coil pipe is on a declining curve, then close the air intake vent wind deflector of both sides;

If the temperature T of outer coil pipe is in rising trend, then close the air intake vent wind deflector of centre;

If the temperature T of outer coil pipe is in rising situation after falling before, then judge that the temperature T of outer coil pipe is ascendant trend, the air intake vent wind deflector in the middle of closing;

If the temperature T of outer coil pipe is in downward trend after first rising, then continues the monitoring scheduled time, it may be judged whether for downward trend, if so, then close the air intake vent wind deflector of both sides;

If the temperature T of outer coil pipe is up and down situation, then judge the peak value of each rising, if peak value is downward trend, then judge that the temperature T of outer coil pipe is on a declining curve; If peak value is ascendant trend, then judge that the temperature T of outer coil pipe is in rising trend; If peak value is up and down, then it is judged as exception, closes dehumidifier.

The situation processing procedure of T < B-Q3, specifically includes:

< during B-Q3, open side wind deflector when the temperature T of outer coil pipe meets T, close all air intake vent wind deflectors; Wherein, B is the second predetermined threshold value, and Q3 is the integer more than or equal to 1;

After dehumidifier then runs the scheduled time, it is judged that the temperature T of outer coil pipe whether reach compressor properly functioning time corresponding temperature threshold C and predetermined hold-time; If so, then judge when compressor current reaches normal value, close side wind deflector, the air intake vent wind deflector of either on or off; Otherwise, compressor operating is stopped.

Preferably, the method also includes:

The situation processing procedure of T >=B, specifically includes:

When the temperature T of outer coil pipe meets T >=B time, stop compressor operating; Until judge the temperature T of outer coil pipe reach compressor properly functioning time corresponding temperature threshold C and predetermined hold-time; Close side wind deflector, the air intake vent wind deflector of either on or off; It is again turned on compressor.

The embodiment of the present invention also proposes a kind of dehumidifier, including shell, described shell has side air inlet mouth and front air intake vent, front air intake vent is positioned at the windward side of dehumidifier vaporizer, side air inlet mouth is arranged on shell side just to the gap location between condenser of dehumidifier and vaporizer, described dehumidifier also includes controller and for detecting the temperature sensor of the outer coil temperature T of condenser, described controller is for after dehumidifier starts, close side air inlet, open front air intake vent, and when the temperature T of described outer coil pipe is in setting threshold range, side air inlet is opened setting in threshold range, and control the aperture of described front air intake vent, to regulate compressor current.

Preferably, described side air inlet mouth is provided with side wind deflector, and front air intake vent is provided with multiple air intake vent wind deflector;

Described controller, is additionally operable to, when the temperature T of outer coil pipe reaches the first predetermined threshold value A and during less than the second pre-set threshold value B, open side wind deflector, and cut out the air intake vent wind deflector of respective numbers; Wherein, A < B;

After dehumidifier then runs the scheduled time, it is judged that the temperature T of outer coil pipe whether reach compressor properly functioning time corresponding temperature threshold C; If so, then judge that compressor current reaches normal value, close side wind deflector, the air intake vent wind deflector of either on or off; Otherwise increase the quantity of the air intake vent wind deflector of closedown, until the temperature T of outer coil pipe reach compressor properly functioning time corresponding temperature threshold C, make compressor current reach normal value, and close side wind deflector, the air intake vent wind deflector of either on or off.

Preferably, described controller, it is additionally operable to < during A+Q1, open side wind deflector when the temperature T of outer coil pipe meets A < T, close an air intake vent wind deflector; Wherein, A is the first predetermined threshold value, and Q1 is the integer more than or equal to 1, A+Q1 < B; After dehumidifier then runs the scheduled time, it is judged that the temperature T of outer coil pipe whether reach compressor properly functioning time corresponding temperature threshold C and predetermined hold-time; If so, then judge that compressor current reaches normal value, and close side wind deflector, the air intake vent wind deflector of either on or off; Otherwise turn off an air intake vent wind deflector; After dehumidifier then runs the scheduled time, it is judged that the temperature T of outer coil pipe whether reach compressor properly functioning time corresponding temperature threshold C and predetermined hold-time; If so, then judge that compressor current reaches normal value, and close side wind deflector, the air intake vent wind deflector of either on or off; Otherwise, continue to increase the quantity of air intake vent wind deflector closed, until the temperature T of outer coil pipe reach compressor properly functioning time corresponding temperature threshold C, make compressor current reach normal value, and close side wind deflector, the air intake vent wind deflector of either on or off.

Preferably, described controller, it is additionally operable to < during A+Q2, open side wind deflector when the temperature T of outer coil pipe meets A+Q1��T, close two air intake vent wind deflectors; Wherein, A is the first predetermined threshold value, and Q1, Q2 are the integer more than or equal to 1, Q1 < Q2, A+Q2 < B; After dehumidifier then runs the scheduled time, it is judged that the temperature T of outer coil pipe whether reach compressor properly functioning time corresponding temperature threshold C and predetermined hold-time; If so, then judge that compressor current reaches normal value, and close side wind deflector, the air intake vent wind deflector of either on or off; Otherwise turn off an air intake vent wind deflector; After dehumidifier then runs the scheduled time, it is judged that the temperature T of outer coil pipe whether reach compressor properly functioning time corresponding temperature threshold C and predetermined hold-time; If so, then judge that compressor current reaches normal value, and close side wind deflector, the air intake vent wind deflector of either on or off; Otherwise, continue to increase the quantity of air intake vent wind deflector closed, until the temperature T of outer coil pipe reach compressor properly functioning time corresponding temperature threshold C, make compressor current reach normal value, and close side wind deflector, the air intake vent wind deflector of either on or off.

Preferably, described controller, it is additionally operable to after the scheduled time that dehumidifier then runs, when judging corresponding time properly functioning not up to compressor for the temperature T temperature threshold C of outer coil pipe, it is judged that the trend of the temperature T of coil pipe inside and outside the described scheduled time;

If the temperature T of outer coil pipe is on a declining curve, then close the air intake vent wind deflector of both sides; If the temperature T of outer coil pipe is in rising trend, then close the air intake vent wind deflector of centre; If the temperature T of outer coil pipe is in rising situation after falling before, then judge that the temperature T of outer coil pipe is ascendant trend, the air intake vent wind deflector in the middle of closing; If the temperature T of outer coil pipe is in downward trend after first rising, then continues the monitoring scheduled time, it may be judged whether for downward trend, if so, then close the air intake vent wind deflector of both sides; If the temperature T of outer coil pipe is up and down situation, then judge the peak value of each rising, if peak value is downward trend, then judge that the temperature T of outer coil pipe is on a declining curve; If peak value is ascendant trend, then judge that the temperature T of outer coil pipe is in rising trend; If peak value is up and down, then it is judged as exception, closes dehumidifier.

Preferably, described controller, it is additionally operable to<during B-Q3, open side wind deflector when the temperature T of outer coil pipe meets T, close all air intake vent wind deflectors; Wherein, B is the second predetermined threshold value, and Q3 is the integer more than or equal to 1; After dehumidifier then runs the scheduled time, it is judged that the temperature T of outer coil pipe whether reach compressor properly functioning time corresponding temperature threshold C and predetermined hold-time; If so, then judge that compressor current reaches normal value, and close side wind deflector, the air intake vent wind deflector of either on or off; Otherwise, compressor operating is stopped; And when the temperature T of outer coil pipe meets T>=B time, stop compressor operating; Until judge the temperature T of outer coil pipe reach compressor properly functioning time corresponding temperature threshold C and predetermined hold-time; Close side wind deflector, the air intake vent wind deflector of either on or off; It is again turned on compressor.

A kind of dehumidifier compressor protection control method of embodiment of the present invention proposition and dehumidifier, by arranging side air inlet mouth on shell of air moisture releaser, after dehumidifier starts, close side air inlet, open front air intake vent; The temperature T of the outer coil pipe of detection condenser of dehumidifier; When the temperature T of outer coil pipe is in setting threshold range, side air inlet is opened setting in threshold range, and control the aperture of front air intake vent, pressure in adjustment system is carried out by reducing the absorption heat of vaporizer, and then realize the accurate control to compressor current, it is prevented that owing to system pressure is too high and cause that compressor burns, improve safety in utilization and the system stability of compressor, and the assembling of this dehumidifier is simple, convenient 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 preferred embodiment of the present invention.

In order to make technical scheme 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 is only in order to explain the present invention, is not intended to limit the present invention.

The solution of the embodiment of the present invention is mainly: by detecting the temperature of the outer coil pipe of condenser of dehumidifier, temperature according to the outer coil pipe detected, side air inlet is opened setting in threshold range, and control the aperture of front air intake vent, pressure in adjustment system, prevent from, owing to system pressure is too high and burn compressor, improving safety in utilization and the system stability of compressor.

As shown in Figure 1, present pre-ferred embodiments proposes a kind of dehumidifier, including shell, shell has side air inlet mouth 17, front air intake vent 11 and air outlet 21, front air intake vent 11 is positioned at the windward side of dehumidifier vaporizer 5, side air inlet mouth 17 is arranged on shell side just to the gap location between condenser of dehumidifier and vaporizer 5, and a side air inlet mouth is respectively set in the both sides of shell of air moisture releaser, described dehumidifier also includes controller and for detecting the temperature sensor of the outer coil temperature T of condenser. Certainly this controller can use in dehumidifier for controlling the controller of major loop normal operation.

Described controller is for after dehumidifier starts, close side air inlet 17, open front air intake vent 11, and when the temperature T of described outer coil pipe is in setting threshold range, in this setting threshold range, open side air inlet, and control the aperture of described front air intake vent 11, to control the absorption heat of vaporizer 5 to regulate system pressure, prevent from, owing to system pressure is too high and cause that compressor burns, improving safety in utilization and the system stability of compressor.

Compressor is as the important component of dehumidifier, and its safety in utilization is particularly important. And ambient temperature too high be the one of the main reasons causing system pressure too high, when ambient temperature raises, the pressure of condenser will raise, the pressure of compressor rises, 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 is by the monitoring to the outer coil temperature of condenser, regulate the aperture of front air intake vent 11, to control the absorption heat of vaporizer 5, reduce system pressure, compressor current is made to reach normal value, prevent from, owing to system pressure is too high and cause that compressor burns, improving safety in utilization and the system stability of compressor.

Specifically, the present embodiment is provided with side wind deflector 3 at side air inlet mouth, being provided with multiple air intake vent wind deflector at front air intake vent 11, the present embodiment is illustrated with first air intake vent wind deflector the 41, second air intake vent wind deflector the 42, the 3rd air intake vent wind deflector the 43, the 4th 44 4 air intake vent wind deflectors of air intake vent wind deflector. Above-mentioned first air intake vent wind deflector the 41, second air intake vent wind deflector the 42, the 3rd air intake vent wind deflector the 43, the 4th air intake vent wind deflector 44 is arranged in order from the bottom to top on shell.

When dehumidifier normal operation, side wind deflector 3 is closed, four air intake vent wind deflector full open of front air intake vent 11. The present embodiment regulates the aperture of front air intake vent 11 by controlling the quantity of the air intake vent wind deflector of closedown front air intake vent 11.

Wherein, in order to control the electric current in compressor operating, the present embodiment is provided with temperature sensor on the outer coil pipe of condenser, in real time or the temperature of coil pipe outside condenser is monitored interval time by temperature sensor, and it is correspondingly arranged two temperature warning values, first predetermined threshold value A and the second predetermined threshold value B, wherein B > A, be additionally provided with simultaneously compressor properly functioning time corresponding temperature threshold C, then side wind deflector 3 is opened by controller according to the temperature of the outer coil pipe monitored, and the closedown quantity of air intake vent wind deflector is controlled, until the temperature T of outer coil pipe reach compressor properly functioning time corresponding temperature threshold C, compressor current is made to reach normal value. the closedown of above-mentioned side wind deflector 3 and each air intake vent wind deflector with open by corresponding step motor drive.

The core point of the present embodiment control method is in that: by detecting whether outer coil temperature is in setting threshold range (the present embodiment refers between the first predetermined threshold value A and the second predetermined threshold value B), and the quantity that open side wind deflector and control air intake vent wind deflector are closed in setting threshold range, and judge whether to reach normal value after running a period of time, if, not continuing to increase the quantity closing air intake vent wind deflector, if being in rising, then increase the quantity closing air intake vent wind deflector until downward trend, namely the inlet of vaporizer 5 is controlled by the quantity of air intake vent wind deflector, thus reducing system pressure, when temperature reaches the normal temperature value of pressure, then the air intake vent wind deflector closed before is opened, close side wind deflector 3.

Concrete control process is as follows:

When opening dehumidifier, dehumidifier judges whether current environment humidity reaches requirement, the dehumidifier out of service when humidity is lower than setting humidity, current environment is more than, when setting humidity, opening dehumidifier blower fan and compressor, after dehumidifier starts, close side air inlet, open front air intake vent.

Afterwards, the temperature T of outer coil pipe is detected.

When the temperature T of outer coil pipe reaches the first predetermined threshold value A and during less than the second pre-set threshold value B, setting in threshold range, open side wind deflector 3, and close the air intake vent wind deflector of respective numbers; Wherein, A < B;

After dehumidifier then runs the scheduled time, it is judged that the temperature T of outer coil pipe whether reach compressor properly functioning time corresponding temperature threshold C; If so, then judge that compressor current reaches normal value, close side wind deflector 3, the air intake vent wind deflector of either on or off; Otherwise, increase the quantity of air intake vent wind deflector closed, until the temperature T of outer coil pipe reach compressor properly functioning time corresponding temperature threshold C, make compressor current reach normal value, and close side wind deflector 3, the air intake vent wind deflector of either on or off.

Further, for A < T < including when B, for the situation (wherein, A is the first predetermined threshold value, and Q1 is the integer more than or equal to 1) of A < T < A+Q1, concrete to control process as follows:

First, < during A+Q1, open side wind deflector 3 when the temperature T of outer coil pipe meets A < T, close an air intake vent wind deflector, the order closing air intake vent wind deflector in the present embodiment can be in accordance with the order from top to bottom, or the order according to first both sides air intake vent wind deflector middle air intake vent wind deflector again;

Then, after dehumidifier then runs the scheduled time, it is judged that the temperature T of outer coil pipe whether reach compressor properly functioning time corresponding temperature threshold C and predetermined hold-time; If so, then judge when compressor current reaches normal value, close side wind deflector 3, the air intake vent wind deflector of either on or off; Otherwise turn off an air intake vent wind deflector;

Then, after dehumidifier then runs the scheduled time, it is judged that the temperature T of outer coil pipe whether reach compressor properly functioning time corresponding temperature threshold C and predetermined hold-time; If so, then judge when compressor current reaches normal value, close side wind deflector 3, the air intake vent wind deflector of either on or off; Otherwise, continue to increase the quantity of air intake vent wind deflector closed, until the temperature T of outer coil pipe reach compressor properly functioning time corresponding temperature threshold C, make compressor current reach normal value, and close side wind deflector 3, the air intake vent wind deflector of either on or off.

Further, for A < T < also including when B: for the situation (wherein, Q1, Q2 are the integer more than or equal to 1, Q1 < Q2) of A+Q1��T < A+Q2, concrete to control process as follows:

First, when the temperature T of outer coil pipe meets A+Q1��T < during A+Q2, open side wind deflector 3, close two air intake vent wind deflectors, or close greater number of air intake vent wind deflector, the order closing air intake vent wind deflector in the present embodiment can be in accordance with the order from top to bottom, or the order according to first both sides air intake vent wind deflector middle air intake vent wind deflector again;

Afterwards, after dehumidifier then runs the scheduled time, it is judged that the temperature T of outer coil pipe whether reach compressor properly functioning time corresponding temperature threshold C and predetermined hold-time; If so, then judge that compressor current reaches normal value, and close side wind deflector 3, the air intake vent wind deflector of either on or off; Otherwise, continue to increase the quantity of air intake vent wind deflector closed, until the temperature T of outer coil pipe reach compressor properly functioning time corresponding temperature threshold C, make compressor current reach normal value, and close side wind deflector 3, the air intake vent wind deflector of either on or off.

Consider that in the present embodiment, front air intake vent 11 is generally circular, it is maximum that middle air intake vent wind deflector occupies round area, so the air quantity controlled is maximum, the air intake vent wind deflector of both sides is account for round marginal portion, area is less, and the air quantity controlled is also less. Namely, when the air intake vent wind deflector of centre is identical with the angle that the air intake vent wind deflector of both sides is opened, the air quantity that middle air intake vent wind deflector controls is relatively big, and the air quantity that the air intake vent wind deflector of both sides controls is less.

Both sides air intake vent wind deflector and middle air intake vent wind deflector are defined as follows by the present embodiment:

With the circumference of fan front air intake vent 11 for projection (circle), horizontal diameter is boundary, upper and lower 2/3 radius region for centre air intake vent wind deflector (fast cooling can be realized), other is both sides air intake vent wind deflectors. Such as, the first air intake vent wind deflector the 41, the 4th air intake vent wind deflector 44 is both sides air intake vent wind deflectors, and the second air intake vent wind deflector the 42, the 3rd air intake vent wind deflector 43 is middle air intake vent wind deflector. The air intake vent wind deflector of other quantity, it is possible to divide according to above-mentioned principle.

The air quantity that the air quantity controlled due to the both sides air intake vent wind deflector of front air intake vent 11 controls less than middle air intake vent wind deflector, therefore, if being not as that temperature exceedes is many, can first close the air intake vent wind deflector of both sides, outer coil temperature rises or declines inconspicuous, turns off the middle air intake vent wind deflector that Boiler pressure control is big.

Therefore, in the above-described embodiments, after the scheduled time that dehumidifier then runs, when judging corresponding time properly functioning not up to compressor for the temperature T temperature threshold C of outer coil pipe, it can be determined that the trend of the temperature T of coil pipe inside and outside the scheduled time;

If the temperature T of outer coil pipe is in downward trend after first rising, then continues the monitoring scheduled time, it may be judged whether for downward trend, if so, then close the air intake vent wind deflector of both sides, if it is not, then close the air intake vent wind deflector of centre;

Further, for the situation of T < B-Q3, concrete control process is as follows:

< during B-Q3, open side wind deflector 3 when the temperature T of outer coil pipe meets T, close all air intake vent wind deflectors; Wherein, B is the second predetermined threshold value, and Q3 is the integer more than or equal to 1;

After dehumidifier then runs the scheduled time, it is judged that the temperature T of outer coil pipe whether reach compressor properly functioning time corresponding temperature threshold C and predetermined hold-time; If so, then judge when compressor current reaches normal value, close side wind deflector 3, the air intake vent wind deflector of either on or off; Otherwise, compressor operating is stopped.

When the temperature T of outer coil pipe meets T >=B time, stop compressor operating; Until judge the temperature T of outer coil pipe reach compressor properly functioning time corresponding temperature threshold C and predetermined hold-time; Close side wind deflector 3, the air intake vent wind deflector of either on or off; It is again turned on compressor, properly functioning.

It should be noted that in above-described embodiment, the span of the first predetermined threshold value A can be: 41-45 DEG C; The span of temperature threshold C can be: 38-40 DEG C, and the span of described second predetermined threshold value B can be: 48-55 DEG C; Q1 and Q2 can value 3-9 DEG C, run the scheduled time can be 5-10 minute, predetermined hold-time can be 1-2 minute.

Instantiation is as follows:

Afterwards, the temperature T of outer coil pipe is detected. Follow-up concrete control process is as follows:

Whether step 1 (the first application scenarios), the outer coil temperature T of judgement be more than A, as A, < T is < during A+Q1, wherein Q1=3, and A+Q1 < B, controller controls the motor of side wind deflector 3 and side wind deflector 3 is opened, and the motor controlling the 4th air intake vent wind deflector 44 cuts out the 4th air intake vent wind deflector 44. Now, owing to being reduced by the air quantity of vaporizer 5, and being increased by the air quantity of condenser, evaporating pressure reduces, and the pressure of condenser reduces, thus reducing the purpose of system pressure.

Afterwards, the outer coil temperature T of monitor in real time, in continuous N minute (namely runs the scheduled time), outer coil temperature is not above A+Q1, and every one minute, the outer disk temperature T1 that the outer coil temperature T2 of monitoring monitored with upper one minute is compared, in M minute, the latter is little than the former, then judging whether T arrives below C after M minute, if arrived, after running M minute, again judging whether N continuous minute (i.e. predetermined hold-time) interior T temperature threshold corresponding time properly functioning lower than C[compressor]. If it is judging that system runs on normal pressure, and then judge that compressor operating current value is normal, now, controller controls motor and side wind deflector 3 is closed, and controls motor the 4th air intake vent wind deflector 44 is opened.

If judging after M minute that T is but without arriving below C, then controller control motor cuts out the first air intake vent wind deflector 41.

Afterwards, the outer coil temperature T of monitor in real time, running M minute continuously, judges whether T arrives below C after M minute, if arrived, again judging whether that in N continuous minute, T is lower than C after running M minute. If it is, judgement system runs on normal pressure, and then judge that compressor operating current value is normal. Now, controller controls step motor control side wind deflector 3 and cuts out, and controls motor unlatching the 4th air intake vent wind deflector the 44, first air intake vent wind deflector 41. If judging after M minute that T is but without arriving below C, continues to close the second air intake vent wind deflector 42 ... .. is until outer coil temperature T arrives below C in continuing N minute.

Whether step 2 (the second application scenarios), the outer coil temperature T of judgement be more than A, and as A < T, < during A+Q1, wherein Q1=3, controller controls step motor control side wind deflector 3, and controls motor closedown the 4th air intake vent wind deflector 44. The outer coil temperature T of monitor in real time, in continuous N minute, outer coil temperature T is not above A+Q1, and compare with T1 upper one minute every one minute outer coil temperature T2 by monitoring, in M minute, the latter is big than the former, controller controls motor and cuts out the second air intake vent wind deflector 42, then runs M minute continuously. The outer coil temperature T of monitor in real time, outer coil temperature T is not above A+Q1, and every one minute, outer for monitoring coil temperature T2 is compared with T1 upper one minute, in M minute, the latter is big than the former, then controller controls motor cut out the 3rd air intake vent wind deflector 43, until outer coil temperature T is downward trend. When T is on a declining curve, then judging whether T arrives below C after M minute, if arrived, after running M minute, again judging whether that in N continuous minute, T is lower than C. If it is, judgement system runs on normal pressure, and then judging that compressor operating current value is normal, now, controller controls motor side wind deflector 3 and cuts out, and controls all air intake vent wind deflectors of motor open and close.

Above-mentioned steps 1 and step 2 are distinctive in that: after running the scheduled time, in step 1, the outer coil temperature T of monitoring is during this period of time downward trend, and step 2 is ascendant trend.

It addition, in step 1 and step 2, it is also possible to there is other situations:

Other situations one: if judging that in M minute outer coil temperature T first rises to decline afterwards, then continue monitoring M minute, monitor whether as downward trend. If for downward trend, only with closing the first air intake vent wind deflector 41 of both sides or/and the 4th air intake vent wind deflector 44.

Other situations two: if judging that in M minute outer coil temperature T rises after falling before, be then directly judged as ascendant trend, the second air intake vent wind deflector 42 and/or the 3rd air intake vent wind deflector 43 in the middle of directly closing.

Other situations three, if judging the outer up and down situation of coil temperature T in M minute, then judge the peak value contrast of each rising, if peak value is downward trend, it can be determined that outer coil temperature T is downward trend. Then continue monitoring M minute, monitor whether as downward trend. If so, then only with closing the first air intake vent wind deflector 41 of both sides or/and the 4th air intake vent wind deflector 44.

Other situations four: if inside and outside M minute the up and down situation of coil temperature T, then judge the peak value contrast of each rising, if peak value is ascendant trend, then directly judge that outer coil temperature T is ascendant trend, the second air intake vent wind deflector 42 and/or the 3rd air intake vent wind deflector 43 in the middle of directly closing.

Other situations five: if inside and outside M minute the up and down situation of coil temperature T, then judge the peak value contrast of each rising, if peak value is for being also up and down, be then judged as exception, close dehumidifier.

Whether step 3 (the third application scenarios), the outer coil temperature T of judgement be more than A, when A+Q1��T is < during A+Q2, wherein Q2=6, A+Q2 < B, controller controls step motor control and opens side wind deflector 3, and controls motor and close the second air intake vent wind deflector 42 and the 3rd air intake vent wind deflector 43.

Afterwards, the outer coil temperature T of monitor in real time, in continuous N minute, outer coil temperature T is not above A+Q2, and every one minute, monitoring T2 is compared with T1 upper one minute, in M minute, the latter is little than the former, then judge after M minute whether outer coil temperature T arrives below C, if arrived, then again judge whether that in N continuous minute, T is lower than C after running M minute. If, then judge that system runs on normal pressure, and then judge that compressor operating current value is normal, now, controller controls step motor control and cuts out side wind deflector 3, and controls motor and open the second air intake vent wind deflector 42 and the 3rd air intake vent wind deflector 43.

If judging after M minute that T is but without arriving below C, then controller control motor cuts out the first air intake vent wind deflector 41, the outer coil temperature T of monitor in real time, run M minute continuously, judging after M minute whether T arrives below C, if arrived, after running M minute, again judging whether that in N continuous minute, T is lower than C. If it is, judgement system runs on normal pressure, compressor operating current value is normal. Now, controller controls motor and side wind deflector 3 is closed, and control the air intake vent wind deflector of the motor all closedowns of unlatching, specifically, each air intake vent wind deflector can by independent step motor control, and this is had memory thus realizing controlling the closedown of the air intake vent wind deflector of closedown by controller. If judging after M minute that T is but without arriving below C, continues to close the 4th air intake vent wind deflector 44 ... .. is until outer coil temperature T arrives below C in continuing N minute.

Whether step 4 (the 4th kind of application scenarios), the outer coil temperature T of judgement be more than A, when A+Q1��T is < during A+Q2, wherein Q2=6, A+Q2 < B, controller controls motor and opens side wind deflector 3, and controls motor and close the second air intake vent wind deflector the 42, the 3rd air intake vent wind deflector 43.

Afterwards, the outer coil temperature T of monitor in real time, in continuous N minute, outer coil temperature T is not above A+Q2, and is compared with T1 upper one minute by monitoring T2 every one minute, and in M minute, the latter is big than the former, control motor and open the first air intake vent wind deflector 41, then run M minute continuously. The outer coil temperature T of monitor in real time, outer coil temperature T is not above A+Q2, and is compared with T1 upper one minute by monitoring T2 every one minute, and in M minute, the latter is big than the former, then control motor and close the 4th air intake vent wind deflector 44, until temperature T is downward trend. When T downward trend, then judging whether T arrives below C after M minute, if arrived, then again judging whether that in N continuous minute, T is lower than C after running M minute. If it is, judgement system runs on normal pressure, compressor operating current value is normal, and now, controller controls motor and cuts out side wind deflector 3, and controls the air intake vent wind deflector of motor open and close.

Above-mentioned steps 3 and step 4 are distinctive in that: step 3 is that outer coil temperature presents downward trend after running a period of time, and step 4 is to present ascendant trend.

It addition, in step 3 and step 4, it is also possible to there is other situations:

Other situation one: if judging that in M minute outer coil temperature T first rises to decline afterwards, then continue monitoring M minute, monitor whether as downward trend. If being downward trend, carry out according to step 3.

Other situations two: if judging that in M minute outer coil temperature T rises after falling before, then directly it is judged as ascendant trend, first close the air intake vent wind deflector of side, then opposite side air intake vent wind deflector is turned off, until it is on a declining curve and reach normal value (i.e. step 4) to reach outer coil temperature T.

Other situations three, if in M minute up and down situation, then judge each rising peak value contrast, namely judge that outer coil temperature T is downward trend if peak value is downward trend. According to step 3 carry out.

Other situations four: if in M minute up and down situation, then judge the peak value contrast of each rising, if peak value is ascendant trend, then directly judge that outer coil temperature T is ascendant trend, carries out according to step 4.

Other situations five: if in M minute up and down situation, then judge the peak value contrast of each rising, if peak value is for being also up and down, be then judged as exception, close dehumidifier.

Step 5 (the 5th kind of application scenarios), when T is < during B-Q3, wherein Q3=2, controller controls motor and opens side wind deflector 3, and controls motor closedown the 4th air intake vent wind deflector the 44, the 3rd air intake vent wind deflector the 43, second air intake vent wind deflector the 42, first air intake vent wind deflector 41. The outer coil temperature T of monitor in real time, after running M minute continuously, when in N continuous minute, T is lower than C, then judge that system runs on normal pressure, compressor operating current value is normal, now, controller controls motor and cuts out side wind deflector 3, and controls motor unlatching the 4th air intake vent wind deflector the 44, the 3rd air intake vent wind deflector the 43, second air intake vent wind deflector the 42, first air intake vent wind deflector 41.

If T >=B, then stop compressor, until T is lower than C in N continuous minute, then device processed controls motor cut out side wind deflector 3, and control motor unlatching the 4th air intake vent wind deflector the 44, the 3rd air intake vent wind deflector the 43, second air intake vent wind deflector the 42, first air intake vent wind deflector 41, it is then turned on compressor, properly functioning.

In above-described embodiment each parameter can value as follows: A scope: 41-45 DEG C, Q1, Q2 and Q3:3-9 DEG C, M:5-10 minute, C:38-40 DEG C, N:1-2 minute, B:48-55 DEG C.

The present embodiment passes through such scheme, by arranging side air inlet mouth on shell of air moisture releaser, after dehumidifier starts, closes side air inlet, opens front air intake vent 11; The temperature T of the outer coil pipe of detection condenser of dehumidifier; When the temperature T of outer coil pipe is in setting threshold range, side air inlet is opened setting in threshold range, and control the aperture of front air intake vent 11, pressure in adjustment system is carried out by reducing the absorption heat of vaporizer 5, and then realize the accurate control to compressor current, it is prevented that owing to system pressure is too high and cause that compressor burns, improve safety in utilization and the system stability of compressor, and the assembling of this dehumidifier is simple, convenient use.

As in figure 2 it is shown, present pre-ferred embodiments proposes a kind of dehumidifier compressor protection control method, implementing based on the dehumidifier described in above-described embodiment, this control method includes:

Step S101, after dehumidifier starts, closes side air inlet, opens front air intake vent 11;

Step S102, the temperature T of the outer coil pipe of detection condenser of dehumidifier;

Step S103, when the temperature T of described outer coil pipe is in setting threshold range, opens side air inlet setting, and controls the aperture of described front air intake vent 11, to regulate compressor current in threshold range.

As it was previously stated, compressor is as the important component of dehumidifier, its safety in utilization is particularly important. And ambient temperature too high be the one of the main reasons causing system pressure too high, when ambient temperature raises, the pressure of condenser will raise, the pressure of compressor rises, 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.

Specifically, the present embodiment is provided with side wind deflector 3 at side air inlet mouth, being provided with multiple air intake vent wind deflector at front air intake vent 11, the present embodiment is illustrated with first air intake vent wind deflector the 41, second air intake vent wind deflector the 42, the 3rd air intake vent wind deflector the 43, the 4th 44 4 air intake vent wind deflectors of air intake vent wind deflector. Above-mentioned first air port wind deflector the 41, second air intake vent wind deflector the 42, the 3rd air intake vent wind deflector the 43, the 4th air intake vent wind deflector 44 is arranged in order from the bottom to top on shell.

The core point of the present embodiment control method is in that: by detecting whether outer coil temperature reaches to set threshold range (the present embodiment refers between the first predetermined threshold value A and the second predetermined threshold value B), and the quantity that open side wind deflector and control air intake vent wind deflector are closed in setting threshold range, and judge whether to reach normal value after running a period of time, if, not continuing to increase the quantity closing air intake vent wind deflector, if being in rising, then increase the quantity closing air intake vent wind deflector until downward trend, namely the inlet of vaporizer 5 is controlled by the quantity of air intake vent wind deflector, thus reducing system pressure, when temperature reaches the normal temperature value of pressure, then the air intake vent wind deflector closed before is opened, close side wind deflector 3.

Concrete control process is as follows:

Afterwards, the temperature T of outer coil pipe is detected.

First, when the temperature T of outer coil pipe meets A, < T is < during A+Q1, wherein A+Q1 < B, open side wind deflector 3, close an air intake vent wind deflector, the order closing air intake vent wind deflector in the present embodiment can be in accordance with the order from top to bottom, or the order according to first both sides air intake vent wind deflector middle air intake vent wind deflector again;

Further, for A < T < also including when B: for the situation (wherein, Q1, Q2 are the integer more than or equal to 1, Q1 < Q2, A+Q2 < B) of A+Q1��T < A+Q2, concrete to control process as follows:

If the temperature T of outer coil pipe is in downward trend after first rising, then it is further continued for the monitoring scheduled time, it may be judged whether for downward trend, if so, then closes the air intake vent wind deflector of both sides, if it is not, then close the air intake vent wind deflector of centre;

Further, for the situation of T < B-Q3, concrete control process is as follows:

Instantiation is as follows:

Whether step 1 (the first application scenarios), the outer coil temperature T of judgement be more than A, as A, < T is < during A+Q1, wherein Q1=3, controller controls the motor of side wind deflector 3 and side wind deflector 3 is opened, and the motor controlling the 4th air intake vent wind deflector 44 cuts out the 4th air intake vent wind deflector 44. Now, owing to being reduced by the air quantity of vaporizer 5, and being increased by the air quantity of condenser, evaporating pressure reduces, and the pressure of condenser reduces, thus reducing the purpose of system pressure.

Whether step 2 (the second application scenarios), the outer coil temperature T of judgement be more than A, and as A < T, < during A+Q1, wherein Q1=3, controller controls step motor control side wind deflector 3, and controls motor closedown air intake vent wind deflector 44. The outer coil temperature T of monitor in real time, in continuous N minute, outer coil temperature T is not above A+Q1, and compare with T1 upper one minute every one minute outer coil temperature T2 by monitoring, in M minute, the latter is big than the former, controller controls motor and cuts out the second air intake vent wind deflector 42, then runs M minute continuously. The outer coil temperature T of monitor in real time, outer coil temperature T is not above A+Q1, and every one minute, outer for monitoring coil temperature T2 is compared with T1 upper one minute, in M minute, the latter is big than the former, then controller controls motor cut out the 3rd air intake vent wind deflector 43, until outer coil temperature T is downward trend. When T is on a declining curve, then judging whether T arrives below C after M minute, if arrived, after running M minute, again judging whether that in N continuous minute, T is lower than C. If it is, judgement system runs on normal pressure, and then judging that compressor operating current value is normal, now, controller controls motor side wind deflector 3 and cuts out, and controls all air intake vent wind deflectors of motor open and close.

Other situations one: if judging that in M minute outer coil temperature T first rises to decline afterwards, then be further continued for monitoring M minute, monitor whether as downward trend. If for downward trend, only with closing the first air intake vent wind deflector 41 of both sides or/and the 4th air intake vent wind deflector 44.

Other situations three, if judging the outer up and down situation of coil temperature T in M minute, then judge the peak value contrast of each rising, if peak value is downward trend, it can be determined that outer coil temperature T is downward trend. Then it is further continued for monitoring M minute, monitors whether as downward trend. If so, then only with closing the first air intake vent wind deflector 41 of both sides or/and the 4th air intake vent wind deflector 44.

Whether step 3 (the third application scenarios), the outer coil temperature T of judgement be more than A, when A+Q1��T is < during A+Q2, wherein Q2=6, controller controls step motor control and opens side wind deflector 3, and controls motor and close the second air intake vent wind deflector 42 and the 3rd air intake vent wind deflector 43.

If judging after M minute that T is but without arriving below C, then controller control motor cuts out the first air intake vent wind deflector 41, the outer coil temperature T of monitor in real time, run M minute continuously, judging after M minute whether T arrives below C, if arrived, after running M minute, again judging whether that in N continuous minute, T is lower than C. If it is, judgement system runs on normal pressure, compressor operating current value is normal. Now, controller controls motor and side wind deflector 3 is closed, and control the air intake vent wind deflector of the motor all closedowns of unlatching, specifically, each air intake vent wind deflector can by independent step motor control, this is had memory by controller, thus realizing controlling the closedown of the air intake vent wind deflector of closedown. If judging after M minute that T is but without arriving below C, continues to close the 4th air intake vent wind deflector 44 ... .. is until outer coil temperature T arrives below C in continuing N minute.

Whether step 4 (the 4th kind of application scenarios), the outer coil temperature T of judgement be more than A, when A+Q1��T is < during A+Q2, wherein Q2=6, controller controls motor and opens side wind deflector 3, and controls motor and close the second air intake vent wind deflector the 42, the 3rd air intake vent wind deflector 43.

Afterwards, the outer coil temperature T of monitor in real time, in continuous N minute, outer coil temperature T is not above A+Q2, and is compared with T1 upper one minute by monitoring T2 every one minute, and in M minute, the latter is big than the former, control motor and open air intake vent wind deflector 41, then run M minute continuously. The outer coil temperature T of monitor in real time, outer coil temperature T is not above A+Q2, and is compared with T1 upper one minute by monitoring T2 every one minute, and in M minute, the latter is big than the former, then control motor and close air intake vent wind deflector 44, until temperature T is downward trend. When T downward trend, then judging whether T arrives below C after M minute, if arrived, then again judging whether that in N continuous minute, T is lower than C after running M minute. If it is, judgement system runs on normal pressure, compressor operating current value is normal, and now, controller controls motor and cuts out side wind deflector 3, and controls the air intake vent wind deflector of motor open and close.

Other situation one: if judging that in M minute outer coil temperature T first rises to decline afterwards, then be further continued for monitoring M minute, monitor whether as downward trend. If being downward trend, carry out according to step 3.

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 equivalent structure utilizing description of the present invention and accompanying drawing content to make or flow process conversion; or directly or indirectly it is used in other relevant technical field, all in like manner include in the scope of patent protection of the present invention.

Claims

1. a dehumidifier compressor protection control method; it is characterized in that; described dehumidifier has side air inlet mouth and front air intake vent; front air intake vent is positioned at the windward side of vaporizer; side air inlet mouth is arranged on dehumidifier side just to the gap location between condenser and vaporizer, and the method comprises the following steps:

After dehumidifier starts, close side air inlet, open front air intake vent;

2. method according to claim 1, it is characterised in that described side air inlet mouth is provided with side wind deflector, front air intake vent is provided with multiple air intake vent wind deflector; Described opening side air inlet setting in threshold range when the temperature T of outer coil pipe is in setting threshold range, and controls the aperture of described front air intake vent, the step to regulate compressor current includes:

3. method according to claim 2, it is characterized in that, described when the temperature T of outer coil pipe is in setting threshold range, open side air inlet setting in threshold range, and control the aperture of described front air intake vent, the step to regulate compressor current farther includes:

The situation processing procedure of A < T < A+Q1, specifically includes:

Turn off an air intake vent wind deflector;

4. method according to claim 2, it is characterized in that, described when the temperature T of outer coil pipe is in setting threshold range, open side air inlet setting in threshold range, and control the aperture of described front air intake vent, the step to regulate compressor current farther includes:

Turn off an air intake vent wind deflector;

5. the method according to claim 2,3 or 4, it is characterised in that described front air intake vent is circular, the air quantity that the air quantity that the both sides air intake vent wind deflector of described front air intake vent controls controls less than middle air intake vent wind deflector.

6. method according to claim 5, it is characterized in that, described when the temperature T of outer coil pipe is in setting threshold range, open side air inlet setting in threshold range, and control the aperture of described front air intake vent, the step to regulate compressor current farther includes:

7. method according to claim 2, it is characterized in that, described when the temperature T of outer coil pipe is in setting threshold range, open side air inlet setting in threshold range, and control the aperture of described front air intake vent, the step to regulate compressor current farther includes:

The situation processing procedure of T < B-Q3, specifically includes:

8. method according to claim 2, it is characterised in that also include:

The situation processing procedure of T >=B, specifically includes:

9. a dehumidifier, including shell, it is characterized in that, described shell has side air inlet mouth and front air intake vent, front air intake vent is positioned at the windward side of dehumidifier vaporizer, side air inlet mouth is arranged on shell side just to the gap location between condenser of dehumidifier and vaporizer, described dehumidifier also includes controller and for detecting the temperature sensor of the outer coil temperature T of condenser, described controller is for after dehumidifier starts, close side air inlet, open front air intake vent, and when the temperature T of described outer coil pipe is in setting threshold range, side air inlet is opened setting in threshold range, and control the aperture of described front air intake vent, to regulate compressor current.

10. dehumidifier according to claim 9, it is characterised in that described side air inlet mouth is provided with side wind deflector, front air intake vent is provided with multiple air intake vent wind deflector;

11. dehumidifier according to claim 10, it is characterised in that

Described controller, is additionally operable to < during A+Q1, open side wind deflector when the temperature T of outer coil pipe meets A < T, cut out an air intake vent wind deflector; Wherein, A is the first predetermined threshold value, and Q1 is the integer more than or equal to 1, A+Q1 < B; After dehumidifier then runs the scheduled time, it is judged that the temperature T of outer coil pipe whether reach compressor properly functioning time corresponding temperature threshold C and predetermined hold-time; If so, then judge that compressor current reaches normal value, and close side wind deflector, the air intake vent wind deflector of either on or off; Otherwise turn off an air intake vent wind deflector; After dehumidifier then runs the scheduled time, it is judged that the temperature T of outer coil pipe whether reach compressor properly functioning time corresponding temperature threshold C and predetermined hold-time; If so, then judge that compressor current reaches normal value, and close side wind deflector, the air intake vent wind deflector of either on or off; Otherwise, continue to increase the quantity of air intake vent wind deflector closed, until the temperature T of outer coil pipe reach compressor properly functioning time corresponding temperature threshold C, make compressor current reach normal value, and close side wind deflector, the air intake vent wind deflector of either on or off.

12. dehumidifier according to claim 10, it is characterised in that

Described controller, is additionally operable to < during A+Q2, open side wind deflector when the temperature T of outer coil pipe meets A+Q1��T, cut out two air intake vent wind deflectors; Wherein, A is the first predetermined threshold value, and Q1, Q2 are the integer more than or equal to 1, Q1 < Q2, A+Q2 < B; After dehumidifier then runs the scheduled time, it is judged that the temperature T of outer coil pipe whether reach compressor properly functioning time corresponding temperature threshold C and predetermined hold-time; If so, then judge that compressor current reaches normal value, and close side wind deflector, the air intake vent wind deflector of either on or off; Otherwise turn off an air intake vent wind deflector; After dehumidifier then runs the scheduled time, it is judged that the temperature T of outer coil pipe whether reach compressor properly functioning time corresponding temperature threshold C and predetermined hold-time; If so, then judge that compressor current reaches normal value, and close side wind deflector, the air intake vent wind deflector of either on or off; Otherwise, continue to increase the quantity of air intake vent wind deflector closed, until the temperature T of outer coil pipe reach compressor properly functioning time corresponding temperature threshold C, make compressor current reach normal value, and close side wind deflector, the air intake vent wind deflector of either on or off.

13. according to the dehumidifier described in claim 10,11 or 12, it is characterised in that

Described controller, is additionally operable to after the scheduled time that dehumidifier then runs, when judging corresponding time properly functioning not up to compressor for the temperature T temperature threshold C of outer coil pipe, it is judged that the trend of the temperature T of coil pipe inside and outside the described scheduled time;

14. dehumidifier according to claim 10, it is characterised in that

Described controller, is additionally operable to<during B-Q3, open side wind deflector when the temperature T of outer coil pipe meets T, cut out all air intake vent wind deflectors; Wherein, B is the second predetermined threshold value, and Q3 is the integer more than or equal to 1; After dehumidifier then runs the scheduled time, it is judged that the temperature T of outer coil pipe whether reach compressor properly functioning time corresponding temperature threshold C and predetermined hold-time; If so, then judge that compressor current reaches normal value, and close side wind deflector, the air intake vent wind deflector of either on or off; Otherwise, compressor operating is stopped; And when the temperature T of outer coil pipe meets T>=B time, stop compressor operating; Until judge the temperature T of outer coil pipe reach compressor properly functioning time corresponding temperature threshold C and predetermined hold-time; Close side wind deflector, the air intake vent wind deflector of either on or off; It is again turned on compressor.