CN114216264B

CN114216264B - Dehumidifier and control method

Info

Publication number: CN114216264B
Application number: CN202111460139.0A
Authority: CN
Inventors: 宋永林; 胡树锋; 姚刚; 赵小军; 刘浩; 黄家璟
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-12-02
Filing date: 2021-12-02
Publication date: 2022-09-27
Anticipated expiration: 2041-12-02
Also published as: CN114216264A

Abstract

The invention provides a dehumidifier and a control method, wherein the dehumidifier comprises a water pan and a drainage device, wherein the drainage device is arranged in an opening of the water pan and comprises a drainage blade and a driving mechanism; the first end parts of the plurality of drainage blades are fixed on the side wall of the opening, and the second end parts of the plurality of drainage blades surround the drainage opening; the driving mechanism is in driving connection with the second end parts of the plurality of drainage blades; the structure of the water outlet is not fixed, and the shape of the water discharging blade can be changed according to actual needs so as to adjust the water discharging amount; when the required water discharge is small, the driving mechanism drives the plurality of water discharge blades to be in a first working state, and the water receiving tray discharges water normally; when the required water discharge is large, the driving mechanism drives the plurality of water discharge blades to be in the second working state, the water receiving disc discharges water quickly, the water discharging is smooth, the water discharging is timely, the water discharging efficiency is high, and the dehumidifying efficiency of the dehumidifier is ensured; the problems of fixed structure of the water outlet, unadjustable water discharge, low water discharge efficiency and the like are solved; the water discharging impact force is large, and dust on the wall surface of the water receiving tray can be cleaned.

Description

Dehumidifier and control method

Technical Field

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

Background

With the development of economic society, the dehumidifier has higher and higher use rate in families, and the working principle of the dehumidifier is that indoor humid air is pumped into the dehumidifier by a fan, water molecules in the air are condensed into water under the action of a heat exchanger, the treated dry air is discharged into the room, and the indoor air is circulated in a proper humidity range; wherein, the condensed water flow is collected in the water receiving tray and is discharged into the water tank through the water outlet; when the existing water pan drains water, the drainage quantity is not adjustable due to the fixed structure of the drainage port; when the required water discharge is large, the water discharge speed is low, the water discharge is not smooth, a water discharge port is easy to block, and condensed water cannot be discharged out of the dehumidifier in time, so that the dehumidification efficiency and the service life of the dehumidifier are influenced, the water discharge efficiency is low, and the customer experience is influenced.

Disclosure of Invention

The invention provides a dehumidifier and a control method, which aim to solve the problems of fixed structure of a water outlet, unadjustable water discharge, easy blockage of the water outlet, low water discharge efficiency and the like in the prior art.

The invention provides a dehumidifier which comprises a water pan and a drainage device, wherein an opening is formed at the bottom of the water pan, and the drainage device is arranged in the opening; the drainage device includes:

the drainage blade comprises a plurality of flexible pieces; each drainage blade comprises a first end fixedly connected with the side wall of the opening and a second end which is movable and extends towards the bottom wall of the opening, and the second ends of the drainage blades are enclosed into a drainage port; the drainage blades have a first working state which can enable the drainage outlet to drain water normally and a second working state which can enable the drainage outlet to drain water quickly;

the driving mechanism is in driving connection with the second end part of the drainage blade; the driving mechanism can enable the plurality of drainage blades to be switched between a first working state and a second working state, and therefore normal drainage or quick drainage of the water receiving tray is achieved.

Further optionally, when the plurality of water discharge blades are in the first working state, the plurality of water discharge blades are radially arranged with the axis of the water discharge opening as the axis, and water in the water receiving tray flows to the water discharge opening from the periphery along the water discharge blades, so that normal water discharge is realized; when the plurality of drainage blades are in the second working state, the plurality of drainage blades are spirally arranged by taking the axis of the water outlet as the axis, and water in the water receiving tray flows along the drainage blades and forms a vortex at the water outlet, so that quick drainage is realized.

Further optionally, the driving mechanism is disposed at the bottom of the drainage vane and has protrusions, correspondingly, grooves are formed at the second end of the drainage vane, and the number of the protrusions is the same as the number of the grooves; the projections are matched with the grooves and drive the plurality of drainage blades to move, and then the plurality of drainage blades are switched between a first working state and a second working state.

Further optionally, the drive mechanism comprises a hollow shaft, a rotating member disposed coaxially with the hollow shaft, and a first gear; the hollow shaft is rotatably arranged on the bottom wall of the opening, the rotating piece is arranged above the first gear, and the rotating piece and the first gear are respectively connected with the hollow shaft; the rotating member is provided with the protrusion at one side close to the drainage vane, and the second end part of the drainage vane is provided with the groove at one side close to the rotating member; the first gear rotates, the hollow shaft and the rotating part synchronously rotate, and then the plurality of drainage blades are driven to move.

Further optionally, the drive mechanism comprises a hollow shaft and a first gear in driving connection with the hollow shaft; the hollow shaft is rotatably arranged on the bottom wall of the opening, the first gear is provided with the bulge at one side close to the drainage blade, and the second end part of the drainage blade is provided with the groove at one side close to the first gear; the first gear and the hollow shaft synchronously rotate and drive the plurality of drainage blades to move.

Further optionally, the opening is formed with a first mounting position, and the drainage blade, the hollow shaft, the rotating member and the first gear are sequentially arranged at the first mounting position from top to bottom; the first end part of the drainage blade is fixedly connected to the top of the side wall of the first installation position, the rotating part and the first gear are arranged at one end, close to the drainage blade, of the hollow shaft, and the hollow shaft is rotatably arranged on the bottom wall of the first installation position.

Further optionally, a mounting hole is formed at the bottom of the first mounting position; a guide slope is formed at the top of the hollow shaft, and the bottom of the hollow shaft is rotatably arranged at the mounting hole; the dehumidifier also comprises a water drainage joint, and the water drainage joint is arranged at the mounting hole and below the hollow shaft; the water outlet, the hollow shaft and the water discharging joint are communicated in sequence;

and water in the water receiving tray is discharged through the water outlet, the hollow shaft and the water discharging joint.

Further optionally, a second installation position is formed at the opening, and an installation groove is formed at the bottom of the second installation position; the driving mechanism further comprises a driving motor and a second gear in driving connection with the driving motor, the driving motor is arranged in the mounting groove, and the second gear is meshed with the first gear;

when the driving motor operates, the second gear drives the first gear to rotate, the hollow shaft and the rotating part synchronously rotate, and then the plurality of drainage blades move and are switched between a first working state and a second working state.

Further optionally, the system comprises an evaporator, a detection module and a controller, wherein the water collecting storage disc stores condensed water of the evaporator; the detection module is used for detecting the indoor air temperature and the indoor air relative humidity; the controller is electrically connected with the detection module and the driving motor respectively, the driving motor is controlled to operate according to detection data of the detection module, and when the plurality of drainage blades are in a first working state, the water receiving tray drains water normally; when a plurality of the drainage blades are in a second working state, the water receiving tray quickly drains water.

The invention also provides a control method of the dehumidifier, which comprises the following steps:

acquiring indoor air temperature and air relative humidity;

respectively comparing the air temperature with a first preset temperature and the air relative humidity with a preset relative humidity;

and when the air temperature is higher than a first preset temperature and the air relative humidity is higher than a preset relative humidity, controlling the driving motor to operate to enable the drainage blades to be in a second working state.

Further optionally, the control method further includes:

when the air temperature is lower than a first preset temperature and/or the air relative humidity is lower than a preset relative humidity, acquiring the tube temperature of the evaporator;

comparing the tube temperature of the evaporator with a second preset temperature;

and when the temperature of the evaporator is lower than a second preset temperature and is kept for a preset time, controlling the driving motor to operate to enable the plurality of drainage blades to be in a second working state.

Compared with the prior art, the invention has the following beneficial effects:

the first end part of the drainage blade is fixedly connected with the side wall of the opening, the second end part can move and surround to form a drainage port, the structure of the drainage port is not fixed, and the drainage quantity can be adjusted according to actual needs; when the required water discharge is small, the water discharge blades are in a first working state and are arranged in a radial shape, and water in the water receiving tray flows to a water discharge port from the periphery along the water discharge blades; when the required water discharge is large, the water discharge blade is in a second working state and is spirally arranged, water in the water receiving tray flows along the water discharge blade and forms a vortex at the water discharge port, so that quick water discharge is realized, water discharge is smooth, the water discharge efficiency of the dehumidifier is effectively enhanced, the water in the water receiving tray can be timely discharged, and the dehumidification efficiency of the dehumidifier is ensured; is beneficial to wide popularization and application and has great production practice significance; the problems of fixed structure of a water outlet, unadjustable water discharge, low water discharge efficiency and the like are solved; the water discharging impact force is large, dust on the wall surface of the water receiving tray can be cleaned, and the problem that a water outlet is easy to block is solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

Fig. 1a and 1b are schematic views of an exploded structure of an embodiment of a water pan and a drainage device provided by the invention;

FIG. 2a is a schematic cross-sectional view of an embodiment of a water pan and a drain assembly of the present invention assembled together;

FIG. 2b is an enlarged view of FIG. 2a at A;

FIG. 3a is a schematic structural diagram of an embodiment of a plurality of drainage vanes provided by the present invention in a first working state;

FIG. 3b is a schematic structural diagram of an embodiment of a plurality of drainage vanes of the present invention in a second working state;

FIGS. 4a and 4b are schematic structural views of a plurality of exemplary embodiments of the drainage blades provided in the present invention;

FIG. 5 is a schematic structural view of an embodiment of a hollow shaft according to the present invention;

FIG. 6 is a schematic flow chart illustrating a method for controlling a dehumidifier according to an embodiment of the present invention;

in the figure:

1-a water pan; 11-opening; 111-a first mounting location; 112-a second mounting location; 113-mounting holes; 114-a mounting slot;

2-a drainage device; 21-a drainage vane; 211-a first end portion; 212-a second end; 213-a groove; 22-a water outlet;

3-a drive mechanism; 31-a rotating member; 311-bumps; 32-a first gear; 33-a hollow shaft; 331-a connecting bond; 332-support ribs; 333-guiding slope; 34-a drive motor; 35-a second gear; 36-a bearing;

4-water drainage joint.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. 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.

When the existing dehumidifier drains water, the drainage quantity is not adjustable due to the fixed structure of the drainage port; when the required water discharge is large, the water discharge speed is low, the water discharge is not smooth, a water discharge port is easy to block, the water discharge efficiency is low, and the customer experience is influenced.

The invention creatively provides a dehumidifier which comprises a water receiving tray and a drainage device, wherein the drainage device is arranged in an opening of the water receiving tray and comprises drainage blades and a driving mechanism, the first ends of the drainage blades are fixed on the side wall of the opening, and the second ends of the drainage blades can move and surround to form a drainage outlet; the plurality of drainage vanes have a first working state and a second working state; the driving mechanism is in driving connection with the second end parts of the plurality of drainage blades; the structure of the water outlet is not fixed, and the shape of the water discharging blade can be changed according to actual needs so as to adjust the water discharging amount; when the required water discharge is small, the driving mechanism drives the plurality of water discharging blades to be in a first working state, and the water receiving tray can realize normal water discharging; when the required water discharge is large, the driving mechanism drives the plurality of water discharge blades to be in the second working state, the water receiving tray can realize quick water discharge, water discharge is smooth, water discharge is timely, water discharge efficiency is high, and dehumidification efficiency of the dehumidifier is guaranteed; the problems of fixed structure of the water outlet, unadjustable water discharge, low water discharge efficiency and the like are solved; the water discharging impact force is large, dust on the wall surface of the water receiving tray can be cleaned, and the water outlet is prevented from being blocked.

< dehumidifier >

As shown in fig. 1a, 1b, 2a and 2b, the present embodiment provides a dehumidifier, which includes an evaporator, a water pan 1 and a drainage device 2; an evaporator is arranged above the water pan 1 and can store condensed water of the evaporator, an opening 11 is formed at the bottom of the water pan 1, and the drainage device 2 is arranged in the opening 11; the drainage device 2 includes:

a plurality of drainage blades 21, wherein the drainage blades 21 are flexible pieces; each drainage blade 21 comprises a first end part 211 and a second end part 212, the first end part 211 is fixedly connected with the side wall of the opening 11, the second end part 212 is movable and extends towards the bottom wall of the opening 11, and the second end parts 212 of the plurality of drainage blades 21 are enclosed to form a drainage opening 22; when an external force acts on the second end portion 212, the second end portion 212 can move, so that the drain vane 21 deforms, the size and the structure of the drain opening 22 are changed, condensed water has different flow states when flowing to the drain opening 22 through the drain vane 21, and the drain speed and the drain amount are different; the plurality of water discharge blades 21 have a first working state enabling the water discharge port 22 to normally discharge water and a second working state enabling the water discharge port 22 to rapidly discharge water; when the plurality of drainage blades 21 are in the first working state, water in the water pan 1 flows to the drainage port 22 from the periphery along the drainage blades 21, water flows in different directions meet and collide, the flow rate is greatly changed, the flow state is unstable, the drainage speed is low, and the water pan is suitable for small drainage quantity; when the plurality of drainage blades 21 are in the second working state, water in the water receiving tray 1 flows along the drainage blades 21 and forms a vortex at the drainage port 22, the flow direction is single, the flow state is stable, the drainage is smooth, the drainage speed is high, the drainage efficiency is high, the drainage is timely, and the water receiving tray is suitable for the condition of large required drainage amount;

a driving mechanism 3 drivingly connected to the second end 212 of the drain blade 21; the driving mechanism 3 can switch the plurality of drainage blades 21 between a first working state and a second working state, so that normal drainage or quick drainage of the water pan 1 is realized; specifically, when the required water discharge amount is small, the driving mechanism 3 operates to enable the plurality of water discharge vanes 21 to be in the first working state, and water in the water receiving tray 1 flows to the water discharge port 22 from the periphery along the water discharge vanes 21 and is discharged; when the required water discharge amount is large, the driving mechanism 3 operates to enable the plurality of water discharge blades 21 to be in the second working state, and water in the water receiving tray 1 flows along the water discharge blades 21 to form a vortex at the water discharge port 22 and is discharged;

in summary, in the dehumidifier provided by the present invention, the structure of the drain 22 is not fixed, and the shape of the drain blade 21 can be adjusted according to actual needs, so as to adjust the structure of the drain 22, the size of the drain 22 and the flow state of water, thereby realizing rapid drainage; when the required water discharge amount is small, the water discharge vane 21 is in a first working state; when the required water discharge amount is large, the water discharge blade 21 is in the second working state, so that quick water discharge is realized, water discharge is smooth, the water discharge efficiency of the dehumidifier is effectively enhanced, water discharge is timely, and the dehumidification efficiency of the dehumidifier is ensured; the problems of fixed structure of the water outlet 22, unadjustable water discharge, low water discharge efficiency and the like are solved; the water discharging impact force is large, and dust on the wall surface of the water receiving tray 1 can be cleaned, so that the water discharging opening 22 is prevented from being blocked.

In order to realize different required water displacement, the shapes of the water discharge blades 21 are different, the water displacement is different, when the water discharge blades 21 are in a first working state, the water discharge blades 21 are radially arranged by taking the axis of the water discharge opening 22 as the axis, and water in the water pan 1 flows to the water discharge opening 22 from the periphery along the water discharge blades 21, so that normal water discharge is realized, the flow state of the water is unstable, the water flow speed is low, and the water discharge device is suitable for small required water displacement; when the plurality of drainage blades 21 are in the second working state, the plurality of drainage blades 21 are spirally arranged by taking the axis of the drainage port 22 as the axis, water in the water receiving tray 1 flows along the drainage blades 21 and forms a vortex at the drainage port 22, so that rapid drainage is realized, the flow state of the water is stable, the water flow speed is high, the drainage is smooth, the drainage is timely, the drainage efficiency is high, and the water discharging device is suitable for the condition of large required drainage amount; in addition, the impact force of the water discharge is large, dust on the wall surface of the water receiving tray 1 can be cleaned, and the water discharge port 22 is prevented from being blocked.

In order to realize that the driving mechanism 3 drives the second end part 212 of the drain vane 21 to move, and further change the shape of the drain vane 21, the driving mechanism 3 is arranged at the bottom of the drain vane 21 and is provided with a protrusion 311, correspondingly, the second end part 212 of the drain vane 21 is provided with grooves 213, and the number of the protrusions 311 is the same as that of the grooves 213; when the driving mechanism 3 operates, the protrusion 311 is matched with the groove 213 and drives the second end 212 of the plurality of drain blades 21 to move, and then the plurality of drain blades 21 are switched between the first working state and the second working state;

as shown in fig. 3a, 3b, 4a and 4b, in particular, the number of the drain blades 21 in the present embodiment is four, when the four drain blades 21 are in the first working state, the four drain blades 21 are radially arranged, the first ends of the four drain blades 21 are at the first horizontal position, the second ends of the four drain blades 21 are at the second horizontal position, and the second horizontal position is lower than the first horizontal position; when the four drainage blades 21 are in the second working state, the four drainage blades 21 are spirally arranged in a surrounding manner, the first ends of the four drainage blades 21 are in the first horizontal position, the second ends of the four drainage blades 21 are in the third horizontal position, the fourth horizontal position, the fifth horizontal position and the sixth horizontal position in sequence, the first horizontal position, the third horizontal position, the fourth horizontal position, the fifth horizontal position and the sixth horizontal position are sequentially reduced, the adjacent drainage blades 21 are vertically staggered at the joint, the structure of the drainage blades 21 is optimized, water in the water receiving tray 1 forms a vortex shape when passing through the drainage blades 21, the flow rate change range is small, and water is favorably and quickly discharged from the water discharge port 22; when the four vanes are switched from the first operating condition to the second operating condition, the second ends 212 of the four vanes move with a small amplitude in both the circumferential direction and the axial direction of the drain opening 22.

It should be noted that the driving connection structure between the driving mechanism 3 and the drain vane 21 is not limited to the protrusion 311 and the groove 213, and may also be a snap and a slot, or other detachable connection structure.

Further, the drive mechanism 3 includes a hollow shaft 33, a rotating member 31 and a first gear 32 which are provided coaxially with the hollow shaft 33; the hollow shaft 33 is rotatably arranged on the bottom wall of the opening 11, the rotating piece 31 is arranged above the first gear 32, the rotating piece 31 and the first gear 32 are respectively connected with the hollow shaft 33, and the rotating piece 31, the first gear 32 and the hollow shaft 33 synchronously rotate; the rotation member 31 is formed with a protrusion 311 at a side close to the drain blade 21, and the second end 212 of the drain blade 21 is formed with a groove 213 at a side close to the rotation member 31; the protrusion 311 is engaged with the groove 213, the first gear 32 rotates, the hollow shaft 33 and the rotating member 31 rotate synchronously, and the second ends 212 of the plurality of drain blades 21 are driven to move, so that the plurality of drain blades 21 are switched between the first operating state and the second operating state.

In other embodiments, the drive mechanism 3 includes a hollow shaft 33 and a first gear 32 in driving connection with the hollow shaft 33; the hollow shaft 33 is rotatably disposed on the bottom wall of the opening 11, the first gear 32 is formed with a protrusion 311 at a side close to the drain vane 21, and the second end 212 of the drain vane 21 is formed with a groove 213 at a side close to the first gear 32; the protrusion 311 and the groove 213 are engaged, the first gear 32 rotates synchronously with the hollow shaft 33, and drives the second end 212 of the plurality of drain blades 21 to move, so that the plurality of drain blades 21 are switched between the first operating state and the second operating state.

As shown in fig. 5, in order to make the hollow shaft 33 rotate stably relative to the opening 11, the opening 11 is formed with a first mounting position 111, and the drainage vane 21, the hollow shaft 33, the rotating member 31 and the first gear 32 are sequentially arranged at the first mounting position 111 from top to bottom; the first end 211 of the drainage blade 21 is fixedly connected to the top of the side wall of the first mounting position 111, and the second end 212 of the drainage blade 21 extends towards the bottom wall of the first mounting position 111 and is movable; the rotating piece 31 and the first gear 32 are arranged at one end of the hollow shaft 33 close to the drainage vane 21, the rotating piece 31 is positioned above the first gear 32, and the hollow shaft 33 is rotatably arranged on the bottom wall of the first mounting position 111; specifically, a connecting key 331 and a supporting rib 332 are formed on the hollow shaft 33, the connecting key 331 is used for connecting the first gear 32 with the hollow shaft 33, and is used for radially and circumferentially limiting the first gear 32, and the supporting rib 332 is used for axially limiting the first gear 32.

Further, a mounting hole 113 is formed at the bottom of the first mounting position 111; the top of the hollow shaft 33 is formed with a guiding slope 333, so that the top of the hollow shaft 33 and the second end 212 of the drainage blade 21 are in smooth transition and have a guiding effect on the condensed water; the bottom of the hollow shaft 33 is rotatably provided at the mounting hole 113; specifically, the bottom of the hollow shaft 33 is disposed at the mounting hole 113 through the bearing 36, and the hollow shaft 33 is rotatable relative to the first mounting position 111; the dehumidifier also comprises a water drainage joint 4, wherein the water drainage joint 4 is arranged at the mounting hole 113 and is positioned below the hollow shaft 33; the water outlet 22, the hollow shaft 33 and the water discharge joint 4 are communicated in sequence; the water in the water receiving tray 1 is discharged through the water discharge port 22, the hollow shaft 33 and the water discharge joint 4.

In addition, the opening 11 is further formed with a second mounting position 112, and a mounting groove 114 is formed at the bottom of the second mounting position 112; the driving mechanism 3 further comprises a driving motor 34 and a second gear 35 in driving connection with the driving motor 34, the driving motor 34 is arranged in the mounting groove 114, and the second gear 35 is positioned above the driving motor 34 and meshed with the first gear 32;

when the driving motor 34 is operated, the second gear 35 drives the first gear 32 to rotate, the hollow shaft 33 and the rotating member 31 rotate synchronously, and then the second ends 212 of the plurality of drainage blades 21 move, the shape of the plurality of drainage blades 21 is changed, and the plurality of drainage blades 21 are switched between the first working state and the second working state.

In order to realize that the plurality of water discharging blades 21 are in different working states when the indoor air temperature and the indoor air relative humidity are different and ensure the water discharging amount and the dehumidifying efficiency of the dehumidifier, the dehumidifier also comprises a detection module and a controller; the detection module comprises a temperature sensor and a humidity sensor, the temperature sensor is used for detecting the indoor air temperature, and the humidity sensor is used for detecting the indoor air relative humidity; the controller is respectively electrically connected with the temperature sensor, the humidity sensor and the driving motor 34, and controls the driving motor 34 to operate according to the detection data of the temperature sensor and the humidity sensor;

starting a dehumidifier, detecting indoor air temperature by a temperature sensor, detecting indoor air relative humidity by a humidity sensor, transmitting detection data to a controller, and judging whether the air temperature is higher than a first preset temperature and the air relative humidity is higher than a preset relative humidity by the controller;

when the air temperature is higher than the first preset temperature and the relative humidity of the air is higher than the preset relative humidity, the controller controls the driving motor 34 to operate, so that the plurality of drainage blades 21 are in the second working state, water in the water pan 1 flows along the drainage blades 21 and forms a vortex at the drainage port 22, enters the hollow shaft 33 through the drainage port 22 and the guide slope 333, is discharged by the drainage connector 4, and has the advantages of single flow direction, stable flow state, smooth drainage, high drainage speed, high drainage efficiency and timely drainage;

when the air temperature is lower than a first preset temperature and/or the air relative humidity is lower than a preset relative humidity, the controller continuously judges whether the tube temperature of the evaporator is lower than a second preset temperature and keeps the preset time; when the pipe temperature of the evaporator is lower than a second preset temperature and the preset time is kept, the controller controls the driving motor 34 to operate, so that the plurality of drainage blades 21 are in a second working state, water in the water pan 1 flows along the drainage blades 21 and forms a vortex at the drainage port 22, enters the hollow shaft 33 through the drainage port 22 and the guide slope 333, is discharged through the drainage joint 4, and has the advantages of single flow direction, stable flow state, smooth drainage, high drainage speed, high drainage efficiency and timely drainage;

when the pipe temperature of the evaporator is higher than a second preset temperature, the controller controls the driving motor 34 to operate, so that the plurality of drainage blades 21 are in a first working state, water in the water pan 1 flows to the drainage port 22 from the periphery along the drainage blades 21, enters the hollow shaft 33 through the guide slope 333, and is discharged by the drainage connector 4, the flow state of the water is unstable, and the water flow speed is low;

preferably, the first preset temperature is a dry bulb temperature, in particular 35 ℃; the preset relative humidity is 70%.

The invention utilizes the existing space to improve the operation reliability of the dehumidifier, the bottom of the water pan 1 is provided with a plurality of flexible drainage blades 21, the hollow shaft 33 is driven to rotate by the gear mechanism, the change of the size and the structure of the drainage port 22 is realized, the requirement that when the drainage quantity required by the dehumidifier is small, the drainage blades 21 are in the first working state to realize normal drainage is met, when the drainage quantity required by the dehumidifier is large, the drainage blades 21 are in the second working state to realize quick drainage, in addition, the impact force is large during quick drainage, the accumulated dust on the wall surface of the water pan 1 can be washed, the problem that the drainage is difficult and even blocked due to the accumulated dust is prevented, and the problems that the industrial dehumidifier has more air dust and the accumulated dust on the wall surface of the water pan 1 under the severe environment are solved.

< control method >

As shown in fig. 6, this embodiment further provides a method for controlling the dehumidifier, where the method includes:

s1, acquiring the indoor air temperature and the indoor air relative humidity;

s2, respectively comparing the air temperature with a first preset temperature and the air relative humidity with a preset relative humidity;

and S3, when the air temperature is higher than the first preset temperature and the air relative humidity is higher than the preset relative humidity, controlling the driving motor 34 to operate to enable the plurality of drainage blades 21 to be in the second working state.

Further optionally, the control method further includes:

s4, when the air temperature is lower than a first preset temperature and/or the air relative humidity is lower than a preset relative humidity, acquiring the tube temperature of the evaporator;

s5, comparing the tube temperature of the evaporator with a second preset temperature;

s6, when the tube temperature of the evaporator is lower than a second preset temperature and is kept for a preset time, controlling the driving motor 34 to operate to enable the plurality of drainage blades 21 to be in a second working state;

and S7, when the pipe temperature of the evaporator is greater than or equal to a second preset temperature, controlling the driving motor 34 to operate to enable the plurality of drainage blades 21 to be in a first working state.

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 water pan (1) and a drainage device (2), wherein an opening (11) is formed at the bottom of the water pan (1), and the drainage device (2) is arranged in the opening (11); the drainage device (2) comprises:

a drain blade (21) which is a flexible member and includes a plurality of blades; each drainage blade (21) comprises a first end part (211) fixedly connected with the side wall of the opening (11) and a second end part (212) which can move and extends towards the bottom wall of the opening (11), and the second end parts (212) of the drainage blades (21) are enclosed into a drainage opening (22); the drainage blades (21) have a first working state which can enable the drainage port (22) to normally drain water and a second working state which can enable the drainage port (22) to quickly drain water;

a driving mechanism (3) which is in driving connection with the second end part (212) of the drainage blade (21); the driving mechanism (3) can enable the plurality of drainage blades (21) to be switched between a first working state and a second working state, and therefore normal drainage or rapid drainage of the water receiving tray (1) is achieved.

2. The dehumidifier of claim 1 wherein when the plurality of drain blades (21) are in the first working state, the plurality of drain blades (21) are arranged in a radial shape with the axis of the drain opening (22) as the axis, and water in the water pan (1) flows to the drain opening (22) from the periphery along the drain blades (21), so as to realize normal drainage; when the plurality of drainage blades (21) are in the second working state, the plurality of drainage blades (21) are spirally arranged by taking the axis of the drainage port (22) as the axis, and water in the water receiving tray (1) flows along the drainage blades (21) and forms a vortex at the drainage port (22) so as to realize quick drainage.

3. The dehumidifier according to claim 2, wherein the driving mechanism (3) is provided at the bottom of the drain blade (21) and has protrusions (311), correspondingly, the second end (212) of the drain blade (21) is formed with grooves (213), and the number of the protrusions (311) is the same as the number of the grooves (213); the protrusion (311) is matched with the groove (213) and drives the plurality of drainage blades (21) to move, and then the plurality of drainage blades (21) are switched between a first working state and a second working state.

4. Dehumidifier according to claim 3 wherein said drive mechanism (3) comprises a hollow shaft (33), a rotating member (31) and a first gear (32) arranged coaxially with said hollow shaft (33); the hollow shaft (33) is rotatably arranged on the bottom wall of the opening (11), the rotating piece (31) is arranged above the first gear (32), and the rotating piece (31) and the first gear (32) are respectively connected with the hollow shaft (33); the rotating member (31) is formed with the projection (311) at a side close to the drain blade (21), and the second end portion (212) of the drain blade (21) is formed with the groove (213) at a side close to the rotating member (31); the first gear (32) rotates, the hollow shaft (33) and the rotating piece (31) synchronously rotate, and then the plurality of drainage blades (21) are driven to move.

5. The dehumidifier of claim 3 wherein the drive mechanism (3) comprises a hollow shaft (33) and a first gear (32) in driving connection with the hollow shaft (33); the hollow shaft (33) is rotatably disposed on the bottom wall of the opening (11), the first gear (32) is formed with the protrusion (311) at a side close to the drain blade (21), and the second end (212) of the drain blade (21) is formed with the groove (213) at a side close to the first gear (32); the first gear (32) rotates synchronously with the hollow shaft (33) and drives the drainage blades (21) to move.

6. The dehumidifier according to any one of claims 4 to 5, wherein the opening (11) is formed with a first mounting position (111), and the drain vane (21), the hollow shaft (33), the rotating member (31) and the first gear (32) are sequentially arranged at the first mounting position (111) from top to bottom; the first end portion (211) of the drainage blade (21) is fixedly connected to the top of the side wall of the first installation position (111), the rotating member (31) and the first gear (32) are arranged at one end, close to the drainage blade (21), of the hollow shaft (33), and the hollow shaft (33) is rotatably arranged on the bottom wall of the first installation position (111).

7. The dehumidifier of claim 6 wherein the bottom of the first mounting location (111) is formed with a mounting hole (113); a guide slope (333) is formed at the top of the hollow shaft (33), and the bottom of the hollow shaft (33) is rotatably arranged at the mounting hole (113); the dehumidifier further comprises a water drainage joint (4), and the water drainage joint (4) is arranged at the mounting hole (113) and below the hollow shaft (33); the water outlet (22), the hollow shaft (33) and the water discharge joint (4) are communicated in sequence;

and water in the water receiving tray (1) is discharged through the water outlet (22), the hollow shaft (33) and the water discharging joint (4).

8. The dehumidifier of claim 7 wherein the opening (11) is further formed with a second mounting location (112), and a mounting groove (114) is formed at the bottom of the second mounting location (112); the driving mechanism (3) further comprises a driving motor (34) and a second gear (35) in driving connection with the driving motor (34), the driving motor (34) is arranged in the mounting groove (114), and the second gear (35) is meshed with the first gear (32);

when the driving motor (34) operates, the second gear (35) drives the first gear (32) to rotate, the hollow shaft (33) and the rotating piece (31) rotate synchronously, and then the plurality of drainage blades (21) move and are switched between a first working state and a second working state.

9. The dehumidifier of claim 8 comprising an evaporator, a detection module and a controller, wherein the water pan (1) stores condensed water generated by the evaporator; the detection module is used for detecting the indoor air temperature and the indoor air relative humidity; the controller is electrically connected with the detection module and the driving motor (34) respectively, the driving motor (34) is controlled to operate according to detection data of the detection module, and when the drainage blades (21) are in a first working state, the water receiving tray (1) drains water normally; when the plurality of the drainage blades (21) are in the second working state, the water receiving tray (1) drains water quickly.

10. A method of controlling a dehumidifier according to claim 9 wherein said method of controlling comprises:

acquiring indoor air temperature and air relative humidity;

and when the air temperature is higher than a first preset temperature and the air relative humidity is higher than a preset relative humidity, controlling the driving motor (34) to operate to enable the drainage blades (21) to be in a second working state.

11. The method of controlling a dehumidifier of claim 10, wherein said method further comprises:

and when the temperature of the evaporator is lower than a second preset temperature and is kept for a preset time, controlling the driving motor (34) to operate to enable the drainage blades (21) to be in a second working state.