CN114087675A

CN114087675A - Dehumidifier and control method thereof

Info

Publication number: CN114087675A
Application number: CN202111424175.1A
Authority: CN
Inventors: 翁振榕; 何炜; 朱尧星; 马江辉; 刘浩; 向国喜
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-02-25

Abstract

The invention discloses a dehumidifier and a control method thereof, belongs to the technical field of household appliances, and is used for solving the problems that the frequent starting and stopping of the dehumidifier and the burning of a controller are easily caused when the temperature of a compressor and the controller in the conventional dehumidifier is higher. The invention relates to a dehumidifier, which comprises a shell, an evaporator, a compressor and a controller, wherein: a first air passage and a second air passage are formed in the shell; the evaporator is arranged on a first air path in the shell; the compressor and/or the controller are/is arranged on a second wind path in the shell; and a water receiving tray is arranged below the evaporator, is thermally coupled with a cooler, and is arranged on the second air path and positioned at the upstream of the compressor and the controller. The invention utilizes the cold energy generated by the condensed water generated by the evaporator to cool the controller and the compressor, and solves the problems that the temperature of the controller and the compressor in the dehumidifier is too high, and the frequent start and stop of the dehumidifier and the burning of the controller are easily caused.

Description

Dehumidifier and control method thereof

Technical Field

The invention relates to the technical field of household appliances, in particular to a dehumidifier and a control method thereof.

Background

Most of the dehumidifiers in the existing market are constant-frequency dehumidifiers, and as the variable-frequency control technology is more mature, the variable-frequency dehumidifiers will certainly become the market mainstream in the future. In the frequency conversion control system, due to the complex working mode of the controller, the problem of too high temperature rise of components of the controller is mostly encountered, so that the machine frequently enters into the protection and even has the safety problem of controller burnout. Most of the frequency conversion controllers of the existing dehumidifier are cooled by natural wind, when the environmental temperature is higher, the cooling effect on the controllers is poorer, and the temperature of the compressor is higher.

Disclosure of Invention

In view of the above, the invention discloses a dehumidifier and a control method thereof, which are used for solving the problems that the frequent start and stop of the dehumidifier and the burning of the controller are easily caused when the temperature of a compressor and the temperature of a controller in the conventional dehumidifier are higher.

In order to achieve the above object, the invention adopts the following technical scheme:

the invention discloses a dehumidifier, which comprises a shell, an evaporator, a compressor and a controller, wherein: a first air passage and a second air passage are formed in the shell; the evaporator is arranged on a first air path in the shell; the compressor and/or the controller are/is arranged on a second wind path in the shell; and a water receiving tray is arranged below the evaporator, is thermally coupled with a cooler, and is arranged on the second air path and positioned at the upstream of the compressor and the controller.

Further optionally, the cooler utilizes evaporator condensate water received by the water pan as a heat exchange medium, the water pan is connected with a drain pipe, the drain pipe is connected with the cooler, and the drain pipe is used for guiding water in the water pan into the cooler so as to cool air in the second air path.

Further optionally, the cooler is a tube heat exchanger, and a water outlet of the drain pipe is communicated with a heat exchange tube of the tube heat exchanger.

Further optionally, the housing is provided with a first air inlet, a second air inlet and an air outlet, one end of the first air path is communicated with the first air inlet, and the other end of the first air path is communicated with the air outlet; one end of the second air path is communicated with the second air inlet, and the other end of the second air path is also communicated with the air outlet.

Further optionally, a fan is disposed in the housing, and is configured to introduce the wind in the environment outside the dehumidifier chamber into the housing through the first air inlet and/or the second air inlet and discharge the wind from the air outlet.

Further optionally, a support frame is arranged in the casing, a box body is arranged on the support frame, the box body is provided with a box body air inlet and a box body air outlet, the box body air inlet corresponds to the second air inlet, the box body air outlet is communicated with the air outlet through a second flow path, the cooler and the controller are arranged in the box body, and a flow path between the box body air inlet and the box body air outlet forms a part of the second flow path.

Further optionally, the water pan, the box body and the drain pipe are all made of heat conducting materials.

Further optionally, the second air inlet is provided with an air deflector.

The second aspect of the present invention discloses a method for controlling the dehumidifier of the first aspect, wherein the method comprises: and after the dehumidifier is started to operate, acquiring the temperature of the controller and/or the temperature of the compressor, and judging whether the temperature of the controller and/or the temperature of the compressor exceed corresponding preset values to determine whether to open the air inlet of the second air path.

Further optionally, the determining whether the temperature of the controller and/or the temperature of the compressor exceeds a corresponding preset value to determine whether to open the air inlet of the second air path includes:

if the temperature of the controller is greater than or equal to the preset controller temperature and/or the temperature of the compressor exceeds the preset compressor temperature, controlling to open the air inlet of the second air path; otherwise, the air inlet of the second air path is in a closed state.

Has the advantages that: the invention utilizes the cold energy generated by the condensed water generated by the evaporator to cool the controller and the compressor, and solves the problems that the temperature of the controller and the compressor in the dehumidifier is too high, and the frequent start and stop of the dehumidifier and the burning of the controller are easily caused.

Drawings

The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings. The drawings described below are merely exemplary embodiments of the present disclosure, and other drawings may be derived by those skilled in the art without inventive effort.

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

FIG. 2 is a partial schematic view of a controller disposed in a second air path in a dehumidifier in accordance with an embodiment of the present invention;

fig. 3 shows a flow chart of a dehumidifier control method according to an embodiment of the present invention.

The arrows in fig. 1 and 2 indicate the direction of the air flow.

Reference numerals:

10-a housing; 20-a controller; 30-an evaporator; 40-a condenser; 11-a top cover; 12-a back plate; 13-a chassis; 14-side plates; 50-a wind deflector; 21-electric appliance box cover; 22-electrical box; 23-a heat sink; 24-an electronic control board; 25-electric appliance box fixing frame; 60-a water pan; 70-a cooler; 80-a compressor; 90-a front panel; 100-a fan.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and "a" and "an" generally include at least two, but do not exclude at least one, unless the context clearly dictates otherwise.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.

The problems that the temperature of a compressor and a controller in the existing dehumidifier is high, the dehumidifier is frequently started and stopped, and the controller is burnt are easily caused.

The invention utilizes the cold energy generated by the dehumidifier evaporator to cool the compressor and the controller, and solves the problems of frequent starting and stopping of the dehumidifier and burning of the controller. Meanwhile, the dehumidifier control method is provided, the temperatures of the controller and the compressor are judged, and when the preset temperature is exceeded, the temperature of the controller and the compressor is timely reduced, so that the dehumidifier is prevented from being started and stopped frequently due to overhigh temperature, and the risk that the controller is burnt due to overhigh temperature is also avoided.

To further illustrate the technical solution of the present invention, the following specific examples are provided with reference to fig. 1 to 3.

In the present embodiment, there is provided a dehumidifier, as shown in fig. 1-2, comprising a housing 10, an evaporator 30, a compressor 80, and a controller 20, wherein: a first air passage and a second air passage are formed in the housing 10; the evaporator 30 is arranged on a first wind path in the shell 10; the compressor 80 and/or the controller 20 are disposed on a second wind path within the housing 10; below the evaporator 30 is a water pan 60, the water pan 60 being thermally coupled to a cooler 70, the cooler 70 being arranged in the second wind path upstream of the compressor 80 and the controller 20.

In this embodiment, a condenser 40 is disposed on the air outlet side of the evaporator 30.

Optionally, the casing 10 includes a top cover 11, a rear plate 12, a chassis 13 and two side plates 14, the two side plates 14 are fixedly connected to two sides of the chassis 13, the top cover 11 is fixedly connected to the tops of the two side plates 14, the rear plate 12 is fixedly connected to the two side plates 14 and the rear of the top cover 11, a first air inlet and a second air inlet are formed in front of the casing 10, the first air inlet is provided with a front panel 90, the second air inlet is provided with an air deflector, and the air deflector controls an air inlet angle and is opened and closed through a motor.

Optionally, the controller 20 in this embodiment includes an electrical box cover 21, an electrical box 22, a radiator 23, and an electrical control board 24, an electrical box fixing frame 25 is disposed in the second air path, the electrical box cover 21 is disposed on the electrical box 22, the electrical control board 24 is disposed in the electrical box 22, a louver is disposed on the electrical box cover 21 and used for ventilation and heat dissipation of the electrical control board 24, and the radiator 23 is disposed at the bottom of the electrical box fixing frame 25 to enhance the heat dissipation effect of the electrical box 22. The cooler utilizes evaporator condensate water received by the water pan as a heat exchange medium, the water pan is connected with a drain pipe, the drain pipe is connected with the cooler, and the drain pipe is used for guiding water in the water pan into the cooler so as to cool air in the second air path.

In one embodiment of this embodiment, the cooler 70 uses the condensed water of the evaporator 30 received by the water pan 60 as a heat exchange medium, and the water pan 60 is connected to a drain pipe, which is connected to the cooler, wherein the cooler 70 may be a heat exchanger, and the drain pipe is used for guiding the water in the water pan 60 into the heat exchanger to cool the air in the second air path. The heat exchanger can be a tubular heat exchanger, and the water receiving disc is communicated with a heat exchange tube of the tubular heat exchanger through a drain pipe. In this embodiment, the cooler 70 may be disposed at the bottom of the water pan 60, and the heat exchanger may be disposed in the second air path to realize bidirectional cooling.

Preferably, the housing 10 is provided with a first air inlet, a second air inlet and an air outlet, one end of the first air path is communicated with the first air inlet, and the other end of the first air path is communicated with the air outlet; one end of the second air path is communicated with the second air inlet, and the other end of the second air path is also communicated with the air outlet. Further, a fan 100 is disposed in the casing 10, and is configured to introduce the wind in the environment outside the dehumidifier into the casing 10 through the first air inlet and/or the second air inlet and discharge the wind from the air outlet. The first air inlet is provided with a front panel 90.

Further, the second air inlet is provided with an air deflector 50 for opening and closing the second air inlet, and the air deflector 50 is controlled to open and close by a motor.

Optionally, a support frame 15 is disposed in the casing 10, a box 16 is disposed on the support frame 15, the box 16 is provided with a box inlet and a box outlet, the box inlet corresponds to the second inlet, the box outlet is in fluid communication with the outlet via a second flow path, the cooler and the controller 20 are disposed in the box 16, and a flow path between the box inlet and the box outlet forms a part of the second flow path. Further optionally, the drip tray 60 and the tank 16 and the drain are made of heat conductive material. The thermally conductive material may be copper. Preferably, the compressor 80 is disposed at the air outlet side of the controller 20.

The evaporator 30 and the compressor 80 are provided with temperature detecting elements, which may be temperature sensors.

Example 2

The present embodiment provides a method for controlling a dehumidifier, which takes embodiment 1 as an example, as shown in fig. 3, including:

and after the dehumidifier is started to operate, acquiring the temperature of the controller and/or the temperature of the compressor, and judging whether the temperature of the controller and/or the temperature of the compressor exceed corresponding preset values to determine whether to open the air inlet of the second air path.

Further, the determining whether the temperature of the controller and/or the temperature of the compressor exceeds a corresponding preset value to determine whether to open the air inlet of the second air path includes:

After the dehumidifier is started, the air inlet of the second air path is in a closed state, namely, the motor is controlled to close the air deflector. When the preset adjustment is met, the controller 20 controls the motor to open the air deflector, so that the condensed water in the water receiving tray 60 cools and cools the controller 20, meanwhile, the condensed water is also subjected to heat exchange with the wind in the second air path to form cold wind, and the cold wind blows to the compressor 80 to cool, so that the compressor 80 and the controller 20 are prevented from being too high in temperature, and meanwhile, the compressor 80 and the controller 20 are guaranteed to be capable of efficiently dehumidifying when the temperatures are below the preset value.

Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that the present disclosure is not limited to the precise arrangements, instrumentalities, or instrumentalities described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. The dehumidifier is characterized by comprising a shell, an evaporator, a compressor and a controller, wherein:

a first air passage and a second air passage are formed in the shell;

the evaporator is arranged on a first air path in the shell;

the compressor and/or the controller are/is arranged on a second wind path in the shell;

and a water receiving tray is arranged below the evaporator, is thermally coupled with a cooler, and is arranged on the second air path and positioned at the upstream of the compressor and the controller.

2. The dehumidifier of claim 1, wherein the cooler utilizes evaporator condensate water received by a water pan as a heat exchange medium, the water pan is connected to a drain pipe, the drain pipe is connected to the cooler, and the drain pipe is used for guiding water in the water pan into the cooler to cool air in the second air passage.

3. The dehumidifier of any one of claims 1-2, wherein the housing has a first air inlet, a second air inlet, and an air outlet, one end of the first air path is communicated with the first air inlet, and the other end is communicated with the air outlet; one end of the second air path is communicated with the second air inlet, and the other end of the second air path is also communicated with the air outlet.

4. The dehumidifier of claim 3, wherein a fan is disposed in the case, and an outlet of the fan corresponds to the outlet of the case, so that the wind in the environment outside the dehumidifier chamber can be introduced into the case through the first inlet and/or the second inlet and discharged from the outlet of the case.

5. The dehumidifier of claim 4 wherein the second inlet is disposed below the water pan, the cooler is disposed opposite to the second inlet, the controller is disposed on a leeward side of the cooler, that is, downstream of the cooler, the compressor is disposed on the second flow path between the cooler and the outlet, and the compressor is disposed in a vertical manner at a height position higher than a height position of the cooler but lower than a height position of the outlet.

6. The dehumidifier of claim 5 wherein a support frame is disposed in the housing, a housing is disposed on the support frame, the housing has a housing inlet and a housing outlet, the housing inlet corresponds to the second inlet, the housing outlet is in fluid communication with the outlet via a second flow path, the cooler and the controller are disposed in the housing, and the flow path between the housing inlet and the housing outlet forms a portion of the second flow path.

7. The dehumidifier of claim 6 wherein the drip pan and the tank and drain are constructed of a thermally conductive material.

8. The dehumidifier of claim 3 wherein the second inlet is provided with air deflectors.

9. A method of controlling a dehumidifier according to any one of claims 1 to 8 wherein said method comprises:

10. The method of claim 9, wherein the determining whether the temperature of the controller and/or the temperature of the compressor exceeds a corresponding preset value to determine whether to open the air inlet of the second air path comprises: