CN115493217A

CN115493217A - Dehumidifier

Info

Publication number: CN115493217A
Application number: CN202211347750.7A
Authority: CN
Inventors: 马佩佩; 肖远富; 郭盛; 谈裕辉
Original assignee: Hisense Guangdong Air Conditioning Co Ltd
Current assignee: Hisense Guangdong Air Conditioning Co Ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2022-12-20

Abstract

The invention discloses a dehumidifier, comprising: the evaporator and the condenser are spaced apart to define an air flow passage therebetween; the air quantity adjusting plate is rotatably arranged at the inlet of the air flow channel; the auxiliary liquid condenser is arranged in the air flow channel; the controller is configured to: judging whether the detected indoor environment temperature reaches a first preset temperature threshold value or not, and whether the detected coil temperature of the evaporator reaches a second preset temperature threshold value or not; if the judgment results are yes, determining the optimal air volume ratio corresponding to indoor shunt air flowing through the evaporator and entering from the inlet of the air flow channel based on the coil temperature of the evaporator; controlling the opening corresponding angle of the air quantity adjusting plate according to the optimal air quantity ratio; if the judgment result is negative, controlling the air quantity adjusting plate to close the inlet of the air flow channel. According to the dehumidifier disclosed by the invention, the dehumidification amount of the dehumidifier is increased, the auxiliary condenser is prevented from being blocked by ice, and the service life of the dehumidifier is prolonged.

Description

Dehumidifier

Technical Field

The invention relates to the technical field of dehumidifiers, in particular to a dehumidifier.

Background

The dehumidifier structurally comprises a refrigeration system, a box body system, a fan system and an electric control system, wherein the refrigeration system circulates as follows: the refrigerant enters the compressor and is compressed into high-temperature and high-pressure refrigerant steam, then is condensed and released heat in the condenser to form high-temperature and high-pressure refrigerant liquid, is subjected to an adiabatic throttling process through the throttling component to form low-temperature and low-pressure refrigerant liquid (or two phases), finally enters the evaporator to be evaporated and absorb heat to form low-temperature and low-pressure refrigerant steam, and then flows back to the compressor, and the cycle is repeated.

Based on the refrigeration system, the air dehumidification process of the dehumidifier is as follows: the fan pumps indoor air into the upper shell of the dehumidifier through the air inlet and passes through the evaporator, at the moment, the indoor air is cooled and dehumidified in the evaporator to become low-temperature saturated humid air, and then the low-temperature saturated humid air is heated and dehumidified by the condenser to become dry medium-temperature gas and then is discharged into the indoor environment.

In the related art, in order to improve the dehumidification capacity of the dehumidifier, an auxiliary water condenser is usually arranged between an evaporator and a condenser, however, the auxiliary water condenser is of a sheet structure, the space of a water tank of the auxiliary water condenser is very narrow, the auxiliary water condenser is easily blocked by ice at a low temperature, the auxiliary water condenser is directly unfrozen to cause abnormal expansion of low-temperature water inside, so that the sheet of the auxiliary water condenser is cracked, and the service life of the dehumidifier is shortened.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a dehumidifier, which can improve the dehumidification amount and efficiency of the dehumidifier, and can prevent the auxiliary condenser from being blocked by ice, thereby prolonging the service life of the dehumidifier.

The dehumidifier according to the embodiment of the invention comprises: a refrigerant is circulated in a refrigerant circuit constructed in a refrigeration cycle in the order of a compressor, a condenser, a throttling device, and an evaporator, wherein the evaporator and the condenser are spaced apart to define an air flow passage therebetween; an indoor temperature sensor for detecting an indoor ambient temperature; an evaporator coil temperature sensor for detecting the coil temperature of the evaporator; an air volume adjusting plate rotatably provided at an inlet of the air flow passage for adjusting an air volume ratio of indoor branched air flowing through the evaporator and entering from the inlet of the air flow passage; the auxiliary liquid condenser is arranged in the air flow channel and used for secondarily utilizing air flowing through the evaporator and exchanging heat for the indoor shunting air entering from the inlet of the air flow channel so as to dehumidify the indoor shunting air; a controller configured to: the indoor temperature sensor detects the indoor environment temperature T _in (ii) a The evaporator coil temperature sensor detects the coil temperature T of the evaporator _tube (ii) a Judging the detected indoor ambient temperature T _in Whether the first preset temperature threshold T is reached _{set_1} And the detected coil temperature T of the evaporator _tube Whether a second preset temperature threshold T is reached _{set_2} (ii) a If the judgment results are yes, the temperature T of the coil pipe based on the evaporator is judged _tube Determining an optimum air volume ratio for indoor diverted air flowing through said evaporator and entering from said inlet of said air flow path; controlling the opening corresponding angle of the air volume adjusting plate according to the optimal air volume ratio; and if the judgment results are negative, controlling the air volume adjusting plate to close the inlet of the air flow channel.

According to the dehumidifier provided by the embodiment of the invention, the auxiliary condenser is arranged in the air flow channel defined by the evaporator and the condenser, the inlet of the air flow channel is provided with the swingable air volume adjusting plate, and the controller is configured to determine the optimal air volume ratio according to the indoor environment temperature and the coil temperature of the evaporator and the opening angle of the air volume adjusting plate corresponding to the optimal air volume ratio. Therefore, compared with the traditional dehumidifier, the dehumidification quantity and the dehumidification efficiency of the dehumidifier are improved, and the auxiliary condenser is prevented from being blocked by ice, so that the service life of the dehumidifier can be prolonged.

According to some embodiments of the invention, the dehumidifier further comprises: the stepping motor is connected with the air volume adjusting plate and is used for adjusting the opening degree of the air volume adjusting plate; the controller is further configured to: coil temperature T based on the evaporator _tube After determining an optimal air volume ratio corresponding to indoor branched air flowing through the evaporator and entering from the inlet of the air flowing channel, determining that the angle of the air volume adjusting plate corresponding to the optimal air volume ratio is X degrees according to the optimal air volume ratio; and controlling the stepping motor to drive the air volume adjusting plate to rotate to X degree.

According to some embodiments of the invention, the controller is further configured to: after controlling the action of the air volume adjusting plate, judging whether the dehumidifier enters a refrigerant leakage protection mode; if the judgment result is yes, controlling the air volume adjusting plate to close the inlet of the air flow channel; if the judgment result is negative, returning to the indoor temperature sensor to detect the indoor environment temperature T _in The step (2).

According to some embodiments of the invention, the controller is further configured to: after judging whether the dehumidifier enters the operation of the refrigerant leakage protection mode, judging whether the dehumidifier exits the refrigerant leakage protection mode; if the dehumidifier exits the refrigerant leakage protection mode, judging whether the dehumidifier enters a defrosting mode; if the dehumidifier enters the defrosting mode, controlling the air quantity adjusting plate to close the inlet of the air flow channel; if the dehumidifier does not enter the defrosting mode, returning to the indoor temperature sensor to detect the indoor environment temperature T _in Step (2).

According to some embodiments of the invention, the controller is further configured to: after judging whether the dehumidifier enters the defrosting mode or not, judging whether the dehumidifier exits the defrosting mode or not; if the dehumidifier exits the defrosting mode, judging whether the dehumidifier enters a shutdown mode or not; if the dehumidifier enters a shutdown mode, controlling the air volume adjusting plate to close the inlet of the air flow channel; if the dehumidifier does not enter the shutdown mode, returning to the indoor temperature sensor to detect the indoor environment temperature T _in A step (2); if the dehumidifier does not exit the defrosting mode, returning to the indoor temperature sensor to detect the indoor environment temperature T _in The step (2).

According to some embodiments of the invention, the controller is further configured to: the indoor temperature sensor detects the indoor environment temperature T _in Judging whether the compressor continuously operates for a first time period or not; if the judgment result is yes, the indoor temperature sensor is executed to detect the indoor environment temperature T _in A step (2); and if the judgment result is negative, continuously judging whether the compressor continuously operates for the first time.

According to some embodiments of the invention, the dehumidifier further comprises: a blower fan for sucking indoor air and sequentially passing through the evaporator and the condenser; the controller is further configured to: when the indoor ambient temperature T is detected _in Reaches a first preset temperature threshold T _{set_1} And the detected coil temperature T of the evaporator _tube Reaches a second preset temperature threshold T _{set_2} Judging whether the current rotating speed of the fan is high wind speed or not; if the current rotating speed of the fan is high wind speed, determining the coil temperature T of the evaporator under the high wind speed _tube The corresponding optimal air volume ratio; if the current rotating speed of the fan is not the high wind speed, judging whether the current rotating speed of the fan is the medium wind speed or not; if the current rotating speed of the fan is the medium wind speed, determining the coil temperature T of the evaporator at the medium wind speed _tube The corresponding optimal air volume ratio; if the current rotating speed of the fan is not the medium wind speed, judging whether the current rotating speed of the fan is the low wind speed or not; if the current rotating speed of the fan is low wind speed, determining the coil temperature T of the evaporator under the low wind speed _tube The corresponding optimal air volume ratio.

According to some embodiments of the invention, first air deflectors are respectively arranged between two sides of the evaporator and the condenser, the two first air deflectors, the evaporator and the condenser jointly define the air flow channel, and the air volume adjusting plate is positioned at the top of the evaporator and the condenser.

According to some embodiments of the invention, a second air baffle is provided between the evaporator and the top of the condenser, the second air baffle, the evaporator and the condenser together defining the air flow passage therebetween; the air regulation plate is a plurality of air regulation plates which are respectively arranged between the evaporator and the two sides of the condenser.

According to some embodiments of the invention, the auxiliary condensate reservoir comprises: a frame; a plurality of lime set pieces, it is a plurality of the lime set piece is established in the frame, it is a plurality of the lime set piece is followed the thickness direction interval of lime set piece is arranged, every be formed with on the lime set piece and follow a plurality of through-holes that the length direction interval of lime set piece set up, every the edge of through-hole is equipped with the orientation the extension of one side extension of the thickness direction of lime set piece, it is a plurality of the lime set piece is a plurality of the extension is followed the thickness direction of lime set piece is relative respectively in order to constitute a plurality of passageways respectively, a plurality of the passageway with air flow channel the entry intercommunication, flow through the indoor air of evaporimeter flows through a plurality of the lime set piece is with a plurality of indoor reposition of branch air heat transfer in the passageway.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic diagram of a dehumidifier according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a dehumidifier according to an embodiment of the present invention;

FIG. 3 is a schematic view of a dehumidifier according to an embodiment of the present invention, wherein the housing is not shown;

FIG. 4 is an enlarged view of portion A circled in FIG. 3;

FIG. 5 is a schematic view of a condenser, an evaporator, an air flow regulator and an auxiliary condenser of the dehumidifier shown in FIG. 3;

FIG. 6 is a schematic view of an auxiliary condenser for a dehumidifier according to an embodiment of the present invention;

FIG. 7 is a schematic view of a first wind guard, an air quantity adjusting plate and a stepping motor of a dehumidifier according to an embodiment of the present invention;

FIG. 8 is an enlarged view of the portion B circled in FIG. 7;

FIG. 9 is a flow chart of a controller of a dehumidifier according to an embodiment of the present invention;

fig. 10 is a flowchart of a controller of a dehumidifier according to another embodiment of the present invention.

Reference numerals are as follows:

100: a dehumidifier;

1: a condenser; 2: an evaporator; 3: an air flow passage; 4: an indoor temperature sensor;

5: an evaporator coil temperature sensor; 6: an air quantity adjusting plate; 7: an auxiliary condenser;

71: a through hole; 8: a controller; 81: a storage module; 82: a processing module; 9: a stepping motor;

10: a fan; 11: a first windshield; 12: a housing; 121: and (7) an air outlet.

Detailed Description

Embodiments of the present invention will be described in detail below, the embodiments described with reference to the drawings being exemplary, and a dehumidifier 100 according to an embodiment of the present invention will be described below with reference to fig. 1 to 10.

As shown in fig. 1 to 10, a dehumidifier 100 according to an embodiment of the present invention includes a compressor, a condenser 1, a throttling device, an evaporator 2, an indoor temperature sensor 4, an evaporator coil temperature sensor 5, an air volume adjusting plate 6, an auxiliary condenser 7, and a controller 8.

Specifically, a refrigerant circulates in a refrigerant circuit constructed in the order of a compressor, a condenser 1, a throttling device, and an evaporator 2 in a refrigeration cycle, wherein the evaporator 2 and the condenser 1 are spaced apart to define an air flow passage 3 between the evaporator 2 and the condenser 1. The indoor temperature sensor 4 is used to detect an indoor ambient temperature. The evaporator coil temperature sensor 5 is used to detect the coil temperature of the evaporator 2. An air volume adjusting plate 6 is rotatably provided at the inlet of the air flow path 3 for adjusting the air volume ratio of the indoor divided air flowing through the evaporator 2 and entering from the inlet of the air flow path 3. The auxiliary condensate tank 7 is disposed in the air flow passage 3, and is configured to secondarily utilize air flowing through the evaporator 2, and to perform heat exchange on indoor split air entering from an inlet of the air flow passage 3, so as to achieve dehumidification of the indoor split air.

For example, in the example of fig. 1-8, the dehumidifier 100 further comprises a housing 12, the evaporator 2, the condenser 1, the throttling device and the compressor are all disposed in the housing 12, the housing 12 has an air inlet and an air outlet 121, the evaporator 2 is opposite to the air inlet, and the condenser 1 is located on a side of the evaporator 2 far from the air inlet 111. The evaporator 2 is used for absorbing heat from the low-temperature low-pressure refrigerant liquid flowing out of the throttling device to form low-temperature low-pressure refrigerant gas, and dehumidifying and cooling indoor air flowing over the evaporator 2. The condenser 1 is used for cooling and cooling the high-temperature and high-pressure refrigerant gas discharged by the compressor into medium-temperature and medium-pressure refrigerant liquid.

As shown in fig. 9 and 10, the controller 8 is configured to:

s1, detecting indoor environment temperature T by indoor temperature sensor 4 _in The evaporator coil temperature sensor 5 detects the coil temperature T of the evaporator 2 _tube Judging the detected indoor ambient temperature T _in Whether a first preset temperature threshold T is reached _{set_1} And the detected coil temperature T of the evaporator 2 _tube Whether a second preset temperature threshold T is reached _{set_2} ；

S2, if the judgment results are yes, the temperature T of the coil pipe based on the evaporator 2 is judged _tube Determining an optimum air volume ratio corresponding to indoor branched air flowing through the evaporator 2 and entering from an inlet of the air flow passage 3;

s3, controlling the air volume adjusting plate 6 to open a corresponding angle according to the optimal air volume ratio;

and S4, if the judgment result is negative, controlling the air quantity adjusting plate 6 to close the inlet of the air flow channel 3.

The controller 8 may include a storage module 81 and a processing module 82, the storage module 81 is in communication connection with the processing module 82, and the storage module 81 is configured to store the optimal air volume ratio of different refrigerants at different indoor ambient temperatures and at different coil temperatures of the evaporator 2, and to achieve an opening angle of the air volume adjusting plate 6 corresponding to the optimal air volume ratio. The processing module 82 is used for acquiring data detected by the indoor temperature sensor 4 and the evaporator coil temperature sensor 5 in real time and acquiring indoor environment temperature T _in And the coil temperature T of the evaporator 2 _tube The optimal air volume ratio is determined, the opening angle of the air volume adjusting plate 6 corresponding to the optimal air volume ratio is called from the storage module 81, the corresponding opening angle of the air volume adjusting plate 6 is controlled, the auxiliary liquid condenser 7 is located in a cavity between the evaporator 2 and the condenser 1, one part of air flowing into the shell 12 through the air inlet flows to the auxiliary liquid condenser 7 through the evaporator 2, the auxiliary liquid condenser 7 carries out secondary utilization on the air flowing through the evaporator 2, the other part of air directly flows to the auxiliary liquid condenser 7 through the inlet of the air flowing channel 3, heat exchange is carried out on the air in the air flowing channel 3, the auxiliary liquid condenser 7 can remove one part of moisture in the air, finally all the air flows out from the air outlet 121 after being heated by the condenser 1, the condenser 1 can further remove the moisture in the air, and therefore the moisture removal capacity of the dehumidifier 100 can be improved.

Specifically, referring to fig. 9 and 10, when the determination result in step S1 is yes, it indicates that the indoor temperature is high, and the coil temperature of the evaporator 2 is high, so as to dehumidify the indoor space, at this time, the opening angle of the air volume adjusting plate 6 is adjusted according to the determined optimal air volume ratio, so as to reduce the air volume flowing through the evaporator 2, and increase the air volume flowing to the auxiliary condenser 7, so as to ensure that the air volume flowing through the evaporator 2 is balanced with the coil temperature of the evaporator 2, so as to cool all the air flowing through the evaporator 2 into low-temperature saturated humid air, and at the same time, because the temperature of the auxiliary condenser 7 is low, the moisture in the air can be directly removed, so that the optimal dehumidification capacity of the dehumidifier 100 can be achieved, and the dehumidification effect of the dehumidifier 100 is improved. When the judgment result in the step S1 is negative, it indicates that the indoor temperature is low and the temperature of the coil of the evaporator 2 is low, that is, the temperature of the indoor air is also low, and the air volume adjusting plate 6 is closed, so that the air in the dehumidifier 100 flows to the condenser 1 through the evaporator 2 and the auxiliary condenser 7, and the air is prevented from directly flowing to the auxiliary condenser 7, thereby preventing ice blockage in the auxiliary condenser 7 and prolonging the service life of the dehumidifier 100.

According to the dehumidifier 100 of the embodiment of the invention, the auxiliary condenser 7 is arranged in the air flow channel 3 defined by the evaporator 2 and the condenser 1, the inlet of the air flow channel 3 is provided with the swingable air volume adjusting plate 6, and the controller 8 is configured to determine the optimal air volume ratio according to the indoor environment temperature and the coil temperature of the evaporator 2 and the opening angle of the air volume adjusting plate 6 corresponding to the optimal air volume ratio. Therefore, compared with the traditional dehumidifier, the dehumidification amount and the dehumidification efficiency of the dehumidifier 100 are improved, and the auxiliary condenser 7 is prevented from being blocked by ice, so that the service life of the dehumidifier 100 can be prolonged.

According to some embodiments of the present invention, the dehumidifier 100 further comprises a stepping motor 9, and the stepping motor 9 is connected to the air-volume adjusting plate 6 for adjusting the opening degree of the air-volume adjusting plate 6. Referring to fig. 5 and 7, the stepping motor 9 may be disposed at one end of the air volume adjusting plate 6 in the length direction, and an output shaft of the stepping motor 9 is connected to the air volume adjusting plate 6 to drive the air volume adjusting plate 6 to rotate when the stepping motor 9 rotates.

As shown in fig. 9 and 10, the controller 8 is further configured to:

coil temperature T based on evaporator 2 _tube Is determined to flow through the evaporator 2 andafter the optimum air volume ratio corresponding to the indoor divided air entering from the inlet of the air flow path 3,

s31, according to the optimal air volume ratio, determining the angle of the air volume adjusting plate 6 corresponding to the optimal air volume ratio as X degrees;

and S32, controlling the stepping motor 9 to drive the air quantity adjusting plate 6 to rotate to X degree.

For example, the input signal of the stepping motor 9 may be a current value corresponding to the opening angle of the air volume adjusting plate 6 under different optimal air volume ratios. That is, when a certain current value is input to the stepping motor 9, the stepping motor 9 can drive the air volume adjusting plate 6 to open, and the opening angle of the air volume adjusting plate 6 is the opening angle of the air volume adjusting plate 6 corresponding to the optimal air volume ratio at that time. Therefore, the inlet of the air flow channel 3 can be opened quickly, the air quantity flowing into the air flow channel 3 is increased, and the dehumidification effect of the dehumidifier 100 is ensured.

According to some embodiments of the invention, as shown in fig. 9 and 10, the controller 8 is further configured to:

and S5, after the air quantity adjusting plate 6 is controlled to act, judging whether the dehumidifier 100 enters a refrigerant leakage protection mode. The step can effectively judge whether the refrigerant leaks in the dehumidifier 100.

And S6, if the judgment result is yes, controlling the air quantity adjusting plate 6 to close the inlet of the air flow channel 3. At this time, refrigerant leakage occurs in the dehumidifier 100, and the inlet of the air flow channel 3 is closed to increase the amount of air flowing to the evaporator 2, so that the amount of air flowing to the evaporator 2 can reach the maximum, that is, at this time, the air in the dehumidifier 100 flows to the condenser 1 through the evaporator 2 and the auxiliary condenser 7, thereby blowing off refrigerant gas accumulated in the dehumidifier 100 as soon as possible and improving the safety of refrigerant leakage protection.

If the judgment result is negative, returning to the indoor temperature sensor 4 to detect the indoor environment temperature T _in The step (2) indicates that the dehumidifier 100 can perform dehumidification normally when the refrigerant leaks.

Further, as shown in fig. 9 and 10, the controller 8 is further configured to:

after determining whether the dehumidifier 100 enters the operation of the refrigerant leakage protection mode,

s7, judging whether the dehumidifier 100 exits the refrigerant leakage protection mode or not;

s8, if the dehumidifier 100 exits the refrigerant leakage protection mode, judging whether the dehumidifier 100 enters a defrosting mode;

and S9, if the dehumidifier 100 enters the defrosting mode, controlling the air volume adjusting plate 6 to close the inlet of the air flow channel 3.

Through the steps S7 to S8, the coupling control of the refrigerant leakage protection mode and the defrosting mode of the dehumidifier 100 can be realized, so that the amount of air flowing to the evaporator 2 in the defrosting mode of the dehumidifier 100 is maximized, the defrosting time can be shortened, and the reliability of the defrosting mode can be improved.

If the dehumidifier 100 does not enter the defrosting mode, it returns to the indoor temperature sensor 4 to detect the indoor ambient temperature T _in The step (2) shows that the auxiliary water condenser is ice-blocked and can carry out dehumidification normally, the step (S1) is returned, the opening angle of the air volume adjusting plate 6 is determined, and the dehumidifier 100 can reach the optimal dehumidification capacity.

Further, as shown in fig. 9 and 10, the controller 8 is further configured to:

after determining whether the dehumidifier 100 enters the defrosting mode of operation,

s10, judging whether the dehumidifier 100 exits a defrosting mode or not;

s11, if the dehumidifier 100 exits the defrosting mode, judging whether the dehumidifier 100 enters a shutdown mode;

s12, if the dehumidifier 100 enters the shutdown mode, controlling the air quantity adjusting plate 6 to close the inlet of the air flow channel 3. At this time, the dehumidifier 100 is defrosted, and closing the inlet of the air flow channel 3 can prepare for opening the dehumidifier 100 next time, so that the air volume adjusting plate 6 can be opened at a corresponding angle according to the optimal air volume ratio when the dehumidifier is used next time, and the condition that the actual opening angle of the air volume adjusting plate 6 is not consistent with the expected opening angle is avoided.

If the dehumidifier 100 does not enter the shutdown mode, it returns to the detection chamber of the indoor temperature sensor 4Internal ambient temperature T _in A step (2);

if the dehumidifier 100 does not exit the defrosting mode, the indoor temperature sensor 4 is returned to detect the indoor ambient temperature T _in Step (2).

When the dehumidifier 100 does not enter the shutdown mode or does not exit the defrosting mode, it indicates that the detected coil temperature of the evaporator 2 may be inaccurate or the shutdown key is not successfully triggered, and the indoor environment temperature and the coil temperature of the evaporator 2 need to be re-detected, so that the running state of the dehumidifier 100 can be accurately judged, the dehumidifier 100 can be ensured to be correctly operated, and the dehumidifier 100 is prevented from being damaged.

s0, detecting indoor environment temperature T by indoor temperature sensor 4 _in Judging whether the compressor continuously operates for a first time period or not;

if the judgment result is yes, the indoor temperature sensor 4 is executed to detect the indoor environment temperature T _in A step (2);

and if not, continuously judging whether the compressor continuously operates for the first time.

That is to say, after the compressor continuous operation for the first time, at the coil temperature and the indoor ambient temperature that detect evaporimeter 2, the coil temperature of evaporimeter 2 was comparatively stable this moment, can guarantee the accuracy of the data that detect.

According to some embodiments of the present invention, referring to fig. 2, the dehumidifier 100 further comprises a fan 10, and the fan 10 is used for sucking indoor air and sequentially passing through the evaporator 2 and the condenser 1.

As shown in fig. 9 and 10, the controller 8 is further configured to:

when the detected indoor ambient temperature T _in Reaches a first preset temperature threshold T _{set_1} And the detected coil temperature T of the evaporator 2 _tube Reaches a second preset temperature threshold T _{set_2} When the utility model is used, the water is discharged,

s31', judging whether the current rotating speed of the fan 10 is a high wind speed;

S32', if the current fan 10 speed is high, the coil temperature T of the evaporator 2 is determined at high wind speed _tube The corresponding optimal air volume ratio;

s33', if the current rotating speed of the fan 10 is not the high wind speed, judging whether the current rotating speed of the fan 10 is the medium wind speed;

s34', if the current rotation speed of the fan 10 is the medium wind speed, the coil temperature T of the evaporator 2 at the medium wind speed is determined _tube The corresponding optimal air volume ratio;

s35', if the current rotating speed of the fan 10 is not the medium wind speed, judging whether the current rotating speed of the fan 10 is the low wind speed;

s36', if the current rotating speed of the fan 10 is low wind speed, determining the coil temperature T of the evaporator 2 at the low wind speed _tube And the corresponding optimal air volume ratio.

When the fan 10 operates at different rotation speeds, the amount of air sucked into the housing 12 through the air inlet is also different, and therefore, through the steps S31 to S36', the rotation speed of the fan 10 can be linked with the opening angle of the air volume adjusting plate 6, so that the fan 10 can ensure that the amount of air flowing to the evaporator 2 is the optimal amount of air at different rotation speeds, the accuracy of air volume prediction can be improved, and the dehumidification efficiency of the dehumidifier 100 can be further improved.

According to some embodiments of the present invention, first wind deflectors are respectively arranged between two sides of the evaporator 2 and the condenser 1, the two first wind deflectors, the evaporator 2 and the condenser 1 together define an air flow channel 3, and an air volume adjusting plate 6 is positioned on the top of the evaporator 2 and the condenser 1. As shown in fig. 5 to 8, the top of the air flow channel 3 is an inlet, one end of each of the two first wind deflectors is connected to two ends of the air volume adjusting plate 6 in the length direction, and the other end of each of the two first wind deflectors 11 can be connected to an end plate of the evaporator 2 or the condenser 1 by a buckle or a screw, so as to ensure the installation reliability of the two first wind deflectors 11.

Wherein, the length of air regulation plate 6 should be greater than the interval between two end plates of evaporimeter 2 or condenser 1, and the width of air regulation plate 6 should be equal to the distance between condenser 1 and the evaporimeter 2, and the thickness of air regulation plate 6 needs to satisfy the drop strength requirement of product. The height of the first wind shield 11 should be higher than the height of the condenser 1 and the evaporator 2, the width of the second wind shield should be equal to the distance between the condenser 1 and the evaporator 2, and the thickness of the first wind shield 11 needs to meet the requirement of the falling strength of the product. Optionally, the gap between the first wind deflector 11 and the evaporator 2 or the condenser 1 may be sealed by using sponge or other materials, so as to avoid the occurrence of air leakage and influence on the accuracy of air volume control.

Of course, the invention is not limited thereto, and in other embodiments of the invention, a second baffle (not shown) is provided between the evaporator 2 and the top of the condenser 1, the second baffle, the evaporator 2 and the condenser 1 together defining an air flow channel 3 therebetween. The air volume adjusting plates 6 are provided in plurality, and the air volume adjusting plates 6 are respectively provided between both sides of the evaporator 2 and the condenser 1. In the description of the present invention, "a plurality" means two or more. Specifically, two air volume adjusting plates 6 are provided, the two air volume adjusting plates 6 are respectively swingably provided between the two side surfaces of the condenser 1 and the evaporator 2, and a second air baffle is provided between the tops of the condenser 1 and the evaporator 2. When the dehumidifier 100 dehumidifies, the controller 8 may adjust the opening degree of the inlet by controlling the opening angle of at least one of the two air volume adjusting plates 6, and at this time, a part of the indoor air flowing into the dehumidifier 1001 through the air inlet flows from the side of the condenser 1 to the auxiliary condenser 7. Optionally, a gap between the second air baffle and the evaporator 2 or the condenser 1 may be sealed with sponge or other materials, so as to avoid air leakage from affecting accuracy of air volume control.

According to some embodiments of the present invention, referring to fig. 6, the auxiliary condensate collector 7 includes a frame and a plurality of condensate plates, the plurality of condensate plates are disposed in the frame, the plurality of condensate plates are arranged at intervals along a thickness direction of the condensate plates, each of the condensate plates is formed with a plurality of through holes 71 arranged at intervals along a length direction of the condensate plate, an edge of each of the through holes 71 is provided with an extension portion extending toward one side of the thickness direction of the condensate plate, the plurality of extension portions of the plurality of condensate plates are respectively opposite along the thickness direction of the condensate plate to respectively form a plurality of channels, the plurality of channels are communicated with inlets of the air flow channels 3, and the indoor air flowing through the evaporator 2 flows through the plurality of condensate plates to exchange heat with the indoor split air in the plurality of channels.

For example, when the air volume adjusting plate 6 is located at the top of the air flow channel 3, a plurality of condensation sheets can be arranged at intervals in the width direction of the frame, two adjacent condensation sheets jointly define a channel, each condensation sheet is arranged transversely at the moment, that is, the length direction of the condensation sheet is the same as that of the frame, and each channel extends transversely. When air regulation plate 6 was located the side of air flow channel 3, a plurality of lime set pieces can be arranged by the length direction interval of frame, and every lime set piece is vertical arrangement this moment, and the length direction of lime set piece is the same with the width direction of frame promptly, and vertical extension is followed to every passageway. Therefore, when the air volume adjusting plate 6 is opened, air can flow into the channel to exchange heat with the condensate sheet so as to remove moisture in the air.

Referring to fig. 9, a specific process of the controller of the dehumidifier according to the embodiment of the present invention is as follows:

s0, judging whether the compressor continuously runs for a first time, wherein if the judgment result is yes, executing the step S1, and if the judgment result is no, continuing to execute the step S0;

s1, judging the detected indoor environment temperature T _in Whether a first preset temperature threshold T is reached _{set_1} And the detected coil temperature T of the evaporator 2 _tube Whether a second preset temperature threshold T is reached _{set_2} ；

s31, determining the angle of the air volume adjusting plate 6 corresponding to the optimal air volume ratio as X degrees according to the optimal air volume ratio;

s32, controlling the stepping motor 9 to drive the air quantity adjusting plate 6 to rotate to X degrees;

s4, if the judgment result is negative, controlling the air quantity adjusting plate 6 to close the inlet of the air flow channel 3;

s5, judging whether the dehumidifier 100 enters a refrigerant leakage protection mode or not;

s6, if the judgment result is yes, controlling the air volume adjusting plate 6 to close the inlet of the air flow channel 3;

s7, judging whether the dehumidifier 100 exits the refrigerant leakage protection mode;

s8, if the dehumidifier 100 exits the refrigerant leakage protection mode, judging whether the dehumidifier 100 enters a defrosting mode, and if the dehumidifier 100 does not enter the defrosting mode, returning to the step S1;

s9, if the dehumidifier 100 enters a defrosting mode, controlling the air volume adjusting plate 6 to close the inlet of the air flow channel 3;

s10, judging whether the dehumidifier 100 exits the defrosting mode, and if the dehumidifier 100 does not exit the defrosting mode, returning to the step S1;

s11, if the dehumidifier 100 exits the defrosting mode, judging whether the dehumidifier 100 enters a shutdown mode, and if the dehumidifier 100 does not enter the shutdown mode, returning to the step S1;

s12, if the dehumidifier 100 enters the shutdown mode, controlling the air quantity adjusting plate 6 to close the inlet of the air flow channel 3.

Referring to fig. 10, a specific process of the controller of the dehumidifier according to another embodiment of the present invention is as follows:

s0, judging whether the compressor continuously runs for a first time period, wherein if the judgment result is yes, executing the step S1, and if the judgment result is no, continuously executing the step S0;

s1, judging the detected indoor environment temperature T _in Whether the first preset temperature threshold T is reached _{set_1} And the detected coil temperature T of the evaporator 2 _tube Whether a second preset temperature threshold T is reached _{set_2} ；

S2, if the judgment results are yes, the temperature T of the coil pipe based on the evaporator 2 is judged _tube Determining an optimum air volume ratio corresponding to indoor divided air flowing through the evaporator 2 and entering from an inlet of the air flow path 3;

s32', if the current rotating speed of the fan 10 is the high wind speed, the coil temperature T of the evaporator 2 at the high wind speed is determined _tube The corresponding optimal air volume ratio;

s34', if the current rotating speed of the fan 10 is the middle wind speed, the coil temperature T of the evaporator 2 at the middle wind speed is determined _tube The corresponding optimal air volume ratio;

s36', if the current rotating speed of the fan 10 is low wind speed, determining the coil temperature T of the evaporator 2 at the low wind speed _tube The corresponding optimal air volume ratio;

s4, if the judgment results are negative, controlling the air volume adjusting plate 6 to close the inlet of the air flow channel 3;

s9, if the dehumidifier 100 enters a defrosting mode, controlling the air quantity adjusting plate 6 to close the inlet of the air flow channel 3;

Other constructions and operations of the dehumidifier 100 according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.

In the description of the invention, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A dehumidifier, comprising:

a refrigerant is circulated in a refrigerant circuit constructed in a refrigeration cycle in the order of a compressor, a condenser, a throttling device, and an evaporator, wherein the evaporator and the condenser are spaced apart to define an air flow passage therebetween;

an indoor temperature sensor for detecting an indoor ambient temperature;

an evaporator coil temperature sensor for detecting the coil temperature of the evaporator;

an air volume adjusting plate rotatably provided at an inlet of the air flow passage for adjusting an air volume ratio of indoor divided air flowing through the evaporator and entering from the inlet of the air flow passage;

the auxiliary liquid condenser is arranged in the air flow channel and used for secondarily utilizing air flowing through the evaporator and exchanging heat for the indoor shunting air entering from the inlet of the air flow channel so as to dehumidify the indoor shunting air;

a controller configured to:

the indoor temperature sensor detects the indoor environment temperature T _in ；

The evaporator coil temperature sensor detects the coil temperature T of the evaporator _tube ；

Judging the detected indoor environment temperature T _in Whether the first preset temperature threshold T is reached _{set_1} And the detected coil temperature T of the evaporator _tube Whether a second preset temperature threshold T is reached _{set_2} ；

If the judgment results are yes, the temperature T of the coil pipe based on the evaporator is judged _tube Determining an optimum air volume ratio for indoor diverted air flowing through said evaporator and entering from said inlet of said air flow passageway;

controlling the opening corresponding angle of the air volume adjusting plate according to the optimal air volume ratio;

and if the judgment result is negative, controlling the air quantity adjusting plate to close the inlet of the air flow channel.

2. The dehumidifier of claim 1, further comprising:

the stepping motor is connected with the air volume adjusting plate and is used for adjusting the opening of the air volume adjusting plate;

the controller is further configured to:

coil temperature T based on the evaporator _tube After determining an optimum air volume ratio corresponding to indoor branched air flowing through the evaporator and entering from the inlet of the air flow passage,

according to the optimal air volume ratio, determining that the angle of the air volume adjusting plate corresponding to the optimal air volume ratio is X degrees;

and controlling the stepping motor to drive the air volume adjusting plate to rotate to X degree.

3. The dehumidifier of claim 1, wherein the controller is further configured to:

after controlling the action of the air volume adjusting plate, judging whether the dehumidifier enters a refrigerant leakage protection mode;

if the judgment result is yes, controlling the air volume adjusting plate to close the inlet of the air flow channel;

if the judgment result is negative, returning to the indoor temperature sensor to detect the indoor environment temperature T _in The step (2).

4. The dehumidifier of claim 3, wherein the controller is further configured to:

after determining whether the dehumidifier enters the operation of the refrigerant leakage protection mode,

judging whether the dehumidifier exits the refrigerant leakage protection mode or not;

if the dehumidifier exits the refrigerant leakage protection mode, judging whether the dehumidifier enters a defrosting mode;

if the dehumidifier enters the defrosting mode, controlling the air quantity adjusting plate to close the inlet of the air flow channel;

if the dehumidifier does not enter the defrosting mode, returning to the indoor temperature sensor to detect the indoor environment temperature T _in The step (2).

5. The dehumidifier of claim 4, wherein the controller is further configured to:

after determining whether the dehumidifier enters the defrosting mode of operation,

judging whether the dehumidifier exits the defrosting mode or not;

if the dehumidifier exits the defrosting mode, judging whether the dehumidifier enters a shutdown mode or not;

if the dehumidifier enters a shutdown mode, controlling the air volume adjusting plate to close the inlet of the air flow channel;

if the dehumidifier does not enter a shutdown mode, returning to the chamberDetecting indoor environment temperature T by internal temperature sensor _in A step (2);

if the dehumidifier does not exit the defrosting mode, returning to the indoor temperature sensor to detect the indoor environment temperature T _in The step (2).

6. The dehumidifier of claim 1, wherein the controller is further configured to:

the indoor temperature sensor detects the indoor environment temperature T _in Judging whether the compressor continuously operates for a first time period or not;

if the judgment result is yes, the indoor temperature sensor is executed to detect the indoor environment temperature T _in A step (2);

7. The dehumidifier of claim 1, further comprising:

a blower fan for sucking indoor air and sequentially passing through the evaporator and the condenser;

the controller is further configured to:

when the indoor ambient temperature T is detected _in Reaches a first preset temperature threshold T _{set_1} And the detected coil temperature T of the evaporator _tube Reaches a second preset temperature threshold T _{set_2} When the temperature of the water is higher than the set temperature,

judging whether the current rotating speed of the fan is high;

if the current rotating speed of the fan is high wind speed, determining the coil temperature T of the evaporator under the high wind speed _tube The corresponding optimal air volume ratio;

if the current rotating speed of the fan is not the high wind speed, judging whether the current rotating speed of the fan is the medium wind speed or not;

if the current rotating speed of the fan is the medium wind speed, determining the coil temperature T of the evaporator at the medium wind speed _tube The corresponding optimal air volume ratio;

if the current rotating speed of the fan is not the medium wind speed, judging whether the current rotating speed of the fan is the low wind speed or not;

if the current rotating speed of the fan is low wind speed, determining the coil temperature T of the evaporator under the low wind speed _tube The corresponding optimal air volume ratio.

8. The dehumidifier according to claim 1, wherein first air deflectors are respectively disposed between both sides of the evaporator and the condenser, the two first air deflectors, the evaporator and the condenser define the air flow channel together, and the air volume adjusting plate is disposed on top of the evaporator and the condenser.

9. The dehumidifier of claim 1, wherein a second air baffle is disposed between the top of the evaporator and the top of the condenser, and the air flow channel is defined by the second air baffle, the evaporator and the condenser;

the air regulation plate is a plurality of air regulation plates which are respectively arranged between the evaporator and the two sides of the condenser.

10. The dehumidifier of any one of claims 1 to 9 wherein the auxiliary liquid condenser comprises:

a frame;

a plurality of lime set pieces, it is a plurality of the lime set piece is established in the frame, it is a plurality of the lime set piece is followed the thickness direction interval of lime set piece is arranged, every be formed with the edge on the lime set piece a plurality of through-holes that the length direction interval of lime set piece set up, every the edge of through-hole is equipped with the orientation the extension that one side of the thickness direction of lime set piece extended, it is a plurality of the lime set piece is a plurality of the extension is followed the thickness direction of lime set piece is relative respectively in order to constitute a plurality of passageways, a plurality of the passageway with air flow channel the entry intercommunication, it flows through the indoor air of evaporimeter flows through a plurality of the lime set piece is with a plurality of indoor reposition of branch air heat transfer in the passageway.