CN221036017U - Dehumidifier - Google Patents

Abstract

The utility model provides a dehumidifier which comprises a shell, wherein a ventilation channel is formed in the shell, an evaporator is arranged in the ventilation channel, and a first opening and a second opening which are communicated with the ventilation channel are formed in the shell; the dehumidifier also comprises an air inlet module arranged on the first opening, the air inlet module is provided with a first air inlet, and the air inlet module can be opened and closed to enable the first air inlet to be opened or closed; when the first air inlet is closed, liquid water condensed on the outer surface of the evaporator can freeze on the outer surface of the evaporator; when the first air inlet is opened, external air enters the ventilation channel through at least the first air inlet and flows through the outer surface of the evaporator, so that the ice layer on the outer surface of the evaporator is melted, and dirt on the outer surface of the evaporator is taken away. Through the air inlet of the control air inlet module, the liquid water condensed on the outer surface of the evaporator can freeze on the outer surface of the evaporator and ensure the operation of the condenser, and when the ice on the outer surface of the evaporator melts, the dirt on the outer surface of the evaporator can be taken away, so that the self-cleaning function is realized.

Description

Dehumidifier

Technical Field

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

Background

The dehumidifier product generally uses compressor and heat exchanger to reach dehumidification function, in order to ensure heat exchange efficiency, the fin of heat exchanger is inseparable multilayer slice, and a large amount of air passes through the heat exchanger when the machine operates, and wherein incidental dust and tiny particulate matter can adsorb on the fin of heat exchanger, blocks up ventilation and influence heat transfer effect, also easily breeds bacterium and influence user's health. Meanwhile, because the fins of the heat exchanger are closely arranged, the heat exchanger is difficult to clean by a user.

The Chinese patent publication No. CN108895619A discloses a self-cleaning method and device for a dehumidifier and the dehumidifier, wherein the dehumidifier is provided with a spraying device, and the spraying device is used for spraying water by controlling the spraying device, so that the dehumidifier is automatically cleaned. But this dehumidifier needs additionally to set up spray set, and spray set still need dispose structures such as water pump, water tank in addition just can realize the self-cleaning of dehumidifier, and the structure of dehumidifier is complicated, and structural cost and control cost are all higher.

Disclosure of utility model

The embodiment of the utility model aims to provide a dehumidifier which is used for solving the problem that dirt on the surface of a heat exchanger of the dehumidifier is difficult to clean in the prior art.

The embodiment of the utility model adopts the following technical scheme: the dehumidifier comprises a shell, wherein a ventilation channel is formed in the shell, an evaporator is arranged in the ventilation channel, a first opening and a second opening which are communicated with the ventilation channel are formed in the shell, and an air outlet for discharging air flowing through the ventilation channel out of the dehumidifier is formed in the second opening; the dehumidifier also comprises an air inlet module;

The air inlet module is arranged in the ventilation channel, is positioned between the evaporator and the first opening, and is provided with a first air inlet, and the air inlet module can be opened and closed so that the first air inlet is opened or closed; when the first air inlet is closed, liquid water condensed on the outer surface of the evaporator can freeze on the outer surface of the evaporator; when the first air inlet is opened, external air enters the ventilation channel at least through the first air inlet and flows through the outer surface of the evaporator, so that the ice layer on the outer surface of the evaporator is melted, and dirt on the outer surface of the evaporator is taken away.

Through set up the air inlet module on the dehumidifier, through the air inlet of control air inlet module, make the liquid water that the evaporimeter surface condensed guarantee the condenser operation when the surface of evaporimeter freezes, can take away the dirt of evaporimeter surface when the ice of evaporimeter surface melts, and then realize self-cleaning function, need not the user and manually clean, improved clean efficiency, clean cost is lower moreover.

In some embodiments, the air intake module includes a fixing frame, a fan blade disposed on the fixing frame, and a driving mechanism for driving the fan blade to rotate to open or close the first air intake.

Through setting up the flabellum that can rotate on the mount, just can realize opening or the control of closing first air intake, air inlet module simple structure is convenient for realize.

In some embodiments, the air intake module further includes an air intake plate, the air intake plate is disposed on the first opening and located above the air intake module, a second air intake that is normally open is disposed on the air intake plate, and an air intake amount of the second air intake is smaller than an air intake amount of the first air intake.

Through setting up the second air intake that the intake is less than first air intake for when first air intake is closed, the second air intake still can keep open state, and then also does not influence condenser heat transfer cooling in order to maintain the normal operating of the ability of dehumidifier when making the surface of evaporimeter freeze.

In some embodiments, the dehumidifier further comprises a condenser, an upper half of the condenser is higher than the evaporator, and a portion of the condenser higher than the evaporator is in direct opposition to the air intake plate.

The condenser and the evaporator are arranged in a staggered mode, so that a height difference exists between the condenser and the evaporator, and a second air inlet on the air inlet plate can be opposite to a part of the condenser, so that external gas can enter the ventilation channel through the second air inlet, and the condenser can perform better heat exchange and temperature reduction.

In some embodiments, the dehumidifier further comprises a fan and a wind wheel, wherein the fan and the wind wheel are arranged in the ventilation channel, and the fan is connected with the wind wheel and used for driving the wind wheel to rotate so that the air in the ventilation channel is discharged out of the dehumidifier through the air outlet.

The fan is connected with the wind wheel, and when the fan drives the wind wheel to rotate, the wind wheel can drive the air flow to enter the ventilation channel from the first air inlet and the second air inlet faster.

In some embodiments, the fan blade includes a plurality of fan blades, the fixing frame includes a left end plate, a right end plate and an upper end plate, two ends of the fan blade are respectively hinged on the left end plate and the right end plate, the fan blade is sequentially arranged from top to bottom along the left end plate and the right end plate, the fan blade has an unfolding state and a folding state, and when the fan blade is unfolded, the first air inlet is formed between two adjacent fan blades; when the fan blades are folded, the first air inlet is closed, and the upper parts of the fan blades are attached to the lower parts of the adjacent fan blades.

Through left end plate, right end plate and last end plate and a plurality of flabellum of arranging side by side, when the flabellum folds for the evaporimeter can be surrounded by mount and flabellum, avoid external gas to flow through the evaporimeter, and then make evaporimeter surface temperature continuously reduce, along with its continuous cooling, the liquid water that the evaporimeter surface condensed can freeze at the surface of evaporimeter, the volume expansion when the water freezes, adsorb the dirt of evaporimeter surface including, when first air intake is opened, the gas flow is through the surface of evaporimeter for ice melts, the dirt is discharged after the ice water that melts flows down, realize the self-cleaning of dehumidifier. The structure of the fixing frame and the fan blade combination is simple, the realization is convenient, and the manufacturing cost is lower.

In some embodiments, the driving mechanism includes a motor and a transmission rod, the motor is disposed on the left end plate, the fan blade includes a driving fan blade and a driven fan blade, an output end of the motor passes through the left end plate and is connected with one end of the driving fan blade, the other ends of all the fan blades are respectively provided with rotating shafts, the rotating shafts are respectively hinged with the right end plate, and the other ends of all the fan blades are also provided with connecting shafts, the connecting shafts are respectively connected with the transmission rod, so that the transmission rod is driven to move along a preset track when the driving fan blade turns over, and then the fan blade is driven to switch between an unfolding state and a folding state.

The driving structure can drive the driving fan blades to act so as to realize the rotation control of all the fan blades, so that all the fan blades can synchronously act, and further, the first air inlet is rapidly closed and opened.

In some embodiments, the dehumidifier further comprises a compressor connected to the condenser to enable the refrigerant in the compressor to flow to the condenser, the condenser further connected to the evaporator to enable the refrigerant flowing through the condenser to flow to the evaporator, and the evaporator further connected to the compressor to enable the refrigerant flowing through the evaporator to flow back to the compressor.

The dehumidifier is connected with the condenser and the evaporator through the compressor, so that the refrigeration of the dehumidifier is realized, the structure is simple, and the realization is convenient.

The embodiment of the utility model has the beneficial effects that:

through set up the air inlet module on the dehumidifier, through the air inlet of control air inlet module, make the liquid water that the evaporimeter surface condensed guarantee the condenser operation when the surface of evaporimeter freezes, can take away the dirt of evaporimeter surface when the ice of evaporimeter surface melts, and then realize self-cleaning function, need not the user and clean, improved clean efficiency, clean cost is lower moreover.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings can be obtained according to the drawings without inventive effort for those skilled in the art.

FIG. 1 is a schematic view of a dehumidifier according to the present utility model;

FIG. 2 is a schematic view of another structure of the dehumidifier of the present utility model;

FIG. 3 is a schematic view of the flow direction of the gas when the first air inlet and the second air inlet are opened;

FIG. 4 is a schematic diagram showing the flow direction of the gas when the first air inlet is closed and the second air inlet is opened;

FIG. 5 is a schematic view of a dehumidifier according to another embodiment of the present utility model;

FIG. 6 is a schematic perspective view of an air intake module according to the present utility model;

FIG. 7 is a schematic view of another embodiment of an air intake module according to the present utility model;

FIG. 8 is a schematic diagram of a connection structure between a motor and a driving fan blade according to the present utility model;

FIG. 9 is a schematic view of the air intake module in the fan blade closed state according to the present utility model;

fig. 10 is a schematic structural view of an air intake module in the fan blade unfolding state of the present utility model.

Reference numerals: 1. a housing; 2. an evaporator; 3. a first opening; 4. a second opening; 5. a first air inlet; 6. a fixing frame; 7. a fan blade; 8. a left end plate; 9. a right end plate; 10. an upper end plate; 11. a condenser; 12. an air inlet plate; 13. a second air inlet; 14. a blower; 15. a wind wheel; 16. a motor; 17. a transmission rod; 18. a rotating shaft; 19. a connecting shaft; 20. a slit hole; 21. a compressor.

Detailed Description

Various aspects and features of the present utility model are described herein with reference to the accompanying drawings.

It should be understood that various modifications may be made to the embodiments of the application herein. Therefore, the above description should not be taken as limiting, but merely as exemplification of the embodiments. Other modifications within the scope and spirit of the utility model will occur to persons of ordinary skill in the art.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and, together with a general description of the utility model given above, and the detailed description of the embodiments given below, serve to explain the principles of the utility model.

These and other characteristics of the utility model will become apparent from the following description of a preferred form of embodiment, given as a non-limiting example, with reference to the accompanying drawings.

It is also to be understood that, although the utility model has been described with reference to some specific examples, a person skilled in the art will certainly be able to achieve many other equivalent forms of the utility model, having the characteristics as set forth in the foregoing summary of the utility model and hence all coming within the field of protection defined thereby.

The above and other aspects, features and advantages of the present utility model will become more apparent in light of the following detailed description when taken in conjunction with the accompanying drawings.

Specific embodiments of the present utility model will be described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely exemplary of the utility model, which can be embodied in various forms. Well-known and/or repeated functions and constructions are not described in detail to avoid obscuring the utility model in unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not intended to be limiting, but merely as a basis for the "summary of the utility model" and as a representative basis for teaching one skilled in the art to variously employ the present utility model in virtually any appropriately detailed structure.

The specification may use the word "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the utility model.

In order to solve the problems in the background technology, the utility model discloses a dehumidifier. Referring to fig. 1, 2, 3 and 4, the dehumidifier includes a cabinet 1, a ventilation passage is formed in the cabinet 1, and the ventilation passage may be formed in an upper half of the cabinet 1. The evaporator 2 is installed in the ventilation passage, and of course, the condenser 11 is also installed in the ventilation passage, and the dehumidifier further includes the compressor 21, so that the compressor 21, the condenser 11 and the evaporator 2 constitute a condensing system. The fins of the evaporator 2 are in the shape of compact multi-layer sheets, and a large amount of air enters the ventilation channel from the outside of the cabinet 1 and flows through the fins of the evaporator 2 when the dehumidifier is operated. Referring to fig. 5, the cabinet 1 is provided with a first opening 3 and a second opening 4 which are communicated with the ventilation channel, wherein the second opening 4 forms an air outlet for discharging the air flowing through the ventilation channel out of the dehumidifier, and specifically, the air in the ventilation channel and the air at other positions in the cabinet 1 can be discharged out of the dehumidifier through the air outlet. The air outlet may be provided at the top of the cabinet 1, which may communicate with the top of the ventilation channel. It can be understood that one or more than two air outlets can be arranged according to the requirement, and the positions of the air outlets can be also arranged at different positions of the casing 1 according to the requirement.

In addition, referring to fig. 6 and 7, the dehumidifier further includes an air intake module disposed in the ventilation channel and between the evaporator 2 and the first opening 3, and the air intake module has a first air intake 5. The evaporator 2 is located in the ventilation channel close to the first air inlet 5. The air inlet module can be opened and closed to make the first air intake 5 open or close, specifically, when the air inlet module is opened, the first air intake 5 is opened, and when the air inlet module is closed, the first air intake 5 is closed. Specifically, the first air inlet 5 is closed by plugging the first air inlet 5 through the air inlet module. The evaporator 2 is at least partially surrounded by an air intake module having a space in which the evaporator 2 can be located, and when the first air intake 5 is open, ambient air can enter the space through the first air intake 5 and flow over the outer surface of the evaporator 2. When the first air inlet 5 is closed, the surface of the air inlet module, which is used for accommodating the evaporator 2, facing the first air inlet 5 is closed, so that the air inlet module forms a wind-shielding protection for the evaporator 2, and further, the external air cannot flow through the outer surface of the evaporator 2; the evaporator 2 still continues to work, so that the temperature of the outer surface of the evaporator 2 is continuously reduced in the working process, the temperature of the outer surface of the evaporator 2 is continuously reduced, along with the continuous reduction of the temperature of the outer surface of the evaporator 2, the condensed liquid water on the outer surface of the evaporator 2 can be frozen or frosted, the volume of the condensed liquid water is expanded when the water is frozen or frosted, dirt on the outer surface of the evaporator 2 is adsorbed in the water, when the first air inlet 5 is opened again, the air enters the ventilation channel and flows through the outer surface of the evaporator 2, so that ice or frost is melted, the dirt is discharged after flowing down along with the melted ice water, and the self cleaning of the dehumidifier is realized. When the first air inlet 5 is opened, external air can enter the casing 1 through at least the first air inlet 5, and more specifically, the external air can enter the ventilation channel through the first air inlet 5; the gas flows in the ventilation channel and can flow through the outer surface of the evaporator 2 installed in the ventilation channel to melt the ice layer of the outer surface of the evaporator 2 to take away dirt of the outer surface of the evaporator 2.

According to the embodiment of the utility model, the air inlet module is arranged on the dehumidifier, and the air inlet of the air inlet module is controlled, so that the condensed liquid water on the outer surface of the evaporator 2 can freeze on the outer surface of the evaporator 2 and ensure the operation of the condenser 11, and when the ice on the outer surface of the evaporator 2 melts, dirt on the outer surface of the evaporator 2 can be taken away, so that a self-cleaning function is realized, a user does not need to manually clean, the cleaning efficiency is improved, and the cleaning cost is lower.

In one embodiment of the present utility model, the air intake module includes a fixing frame 6, fan blades 7 disposed on the fixing frame 6, and a driving mechanism for driving the fan blades 7 to rotate to open or close the first air intake 5. The driving mechanism is connected with the fan blade 7 to drive the fan blade 7 to rotate, so that the first air inlet 5 is opened or closed. Through setting up rotatable flabellum 7 on mount 6, just can realize opening or the control of closing first air intake 5, air inlet module simple structure is convenient for realize.

In one embodiment of the present utility model, the fan blade 7 includes a plurality of fixing frames 6 including a left end plate 8, a right end plate 9 and an upper end plate 10, wherein the left end plate 8 and the right end plate 9 may be disposed in parallel, a top end of the left end plate 8 is connected to one end of the upper end plate 10, and the other end of the upper end plate 10 is connected to a top end of the right end plate 9, such that the end plate, the right end plate 9 and the upper end plate 10 enclose a door-shaped frame. The two ends of the fan blade 7 are respectively hinged to the left end plate 8 and the right end plate 9, for example, the two ends of the fan blade 7 are respectively hinged to the left end plate 8 and the right end plate 9 through bearings. Moreover, the fan blades 7 are sequentially arranged from top to bottom along the left end plate 8 and the right end plate 9, the fan blades 7 are in an unfolding state and a folding state, when the fan blades 7 are in the folding state, the evaporator 2 and the first opening 3 are blocked by the air inlet module, which is equivalent to the situation that the evaporator 2 is partially wrapped by the left end plate 8, the right end plate 9, the upper end plate 10 and the fan blades 7 in the folding state, so that external air is prevented from entering the shell 1 through the first air inlet 5 and flowing through the surface of the evaporator 2. When the fan blades 7 are unfolded, a first air inlet 5 is formed between two adjacent fan blades 7; when the fan blades 7 are folded, the first air inlet 5 is closed, and the upper part of each fan blade 7 is attached to the lower part of the fan blade 7 adjacent to the upper part of each fan blade to realize good closing of the first air inlet 5.

In addition, the fan blade 7 has an incompletely closed state, and in this state, the fan blade 7 tends to be in the closed state, but the state of completely closing the first air inlet 5 is not obtained, that is, a small amount of external air can still enter the casing 1 through the first air inlet 5. Specifically, the dehumidifier further includes a condenser 11, the condenser 11 and the evaporator 2 are arranged in the ventilation channel at equal heights, that is, the condenser 11 and the evaporator 2 have no height difference, and the fan blades 7 can be driven by the driving mechanism to turn to a state of incomplete closure, so that the surface of the evaporator 2 is frozen or frosted, and meanwhile, the heat exchange and the temperature reduction of the condenser 11 are not affected to maintain the normal operation of the compressor 21.

Through left end plate 8, right end plate 9 and upper end plate 10 and a plurality of flabellum 7 that arrange side by side, when flabellum 7 folds, external gas can not get into ventilation passageway and make gaseous external surface that can not flow through evaporator 2, and then make the surface temperature of evaporator 2 continuously reduce, along with its continuous cooling, the liquid water that condenses of evaporator 2 surface can freeze at the surface of evaporator 2, volume expansion when the water freezes, adsorb the dirt of evaporator 2 surface in, when first air intake 5 is opened, the gas flows through the surface of evaporator 2 for ice melts, the dirt discharges after the frozen water flows down, realize the self-cleaning of dehumidifier. In addition, the combined structure of the fixing frame 6 and the fan blades 7 is simple, convenient to realize and low in manufacturing cost.

In one embodiment of the present utility model, the air intake module further includes an air intake plate 12, where the air intake plate 12 is disposed on the first opening 3 and is located above the air intake module, and a second air intake 13 that is normally open is disposed on the air intake plate 12, that is, whether the first air intake 5 is opened or not, the second air intake 13 is always kept in an open state, so that external air can enter the ventilation channel through the second air intake 13. When the dehumidifier is in normal operation, the first air inlet 5 of the air inlet module is opened, external air can enter the ventilation channel through the first air inlet 5 and the second air inlet 13, and the air sequentially flows through the evaporator 2 and the condenser 11 and is discharged out of the dehumidifier through the air outlet. When needs carry out self-cleaning, first air intake 5 is closed, and evaporimeter 2 is wrapped up by flabellum 7 and fixed bolster part, and then obstructs the air flow and carries out the heat preservation to evaporimeter 2, along with its continuous cooling and finally makes the liquid water that gathers at the surface of evaporimeter 2 freeze or frosting. After the dehumidifier operates for a period of time, the first air inlet 5 of the air inlet module is opened, and a large amount of external air enters the ventilation channel through the first air inlet 5 and flows through the outer surface of the evaporator 2, so that ice or frost on the outer surface of the evaporator 2 is melted, and dirt on the outer surface of the evaporator 2 is taken away by the melted ice or frost, so that the self-cleaning of the dehumidifier is realized. Referring to fig. 5, the second air inlet 13 is located above the first air inlet 5, and the air intake of the second air inlet 13 is smaller than the air intake of the first air inlet 5, that is, when the first air inlet 5 is closed, the second air inlet 13 only needs to keep a small amount of air intake.

Through setting up the second air intake 13 that the intake is less than first air intake 5 for when first air intake 5 is closed, second air intake 13 still can keep the open state, and then also do not influence condenser 11 heat transfer cooling in order to maintain the compressor 21 of dehumidifier and can normal operating when making the surface of evaporator 2 ice.

In one embodiment of the utility model, the dehumidifier further comprises a condenser 11, the upper half of the condenser 11 being higher than the evaporator 2, i.e. the condenser 11 has a height difference from the evaporator 2, the evaporator 2 being shorter than the condenser 11 and closer to the first opening 3. The part of the condenser 11 higher than the evaporator 2 is opposite to the air inlet plate 12, namely the part of the condenser 11 higher than the evaporator 2 is opposite to the second air inlet 13, so that the external air can directly flow through the condenser 11 after entering a ventilation channel through the second air inlet 13, and the condenser 11 can perform heat exchange and temperature reduction better; meanwhile, the upper end plate 10 of the fixing frame 6 covers the evaporator 2 from above the evaporator 2, so that the phenomenon that the air entering the ventilation channel through the second air inlet 13 flows through the outer surface of the evaporator 2 to influence the icing or frosting of the outer surface of the evaporator 2 when the first air inlet 5 is closed is avoided.

The condenser 11 and the evaporator 2 are arranged in a staggered mode, so that a height difference exists between the condenser 11 and the evaporator 2, and further the second air inlet 13 on the air inlet plate 12 can be opposite to part of the condenser 11, so that external air can enter a ventilation channel through the second air inlet 13, and the condenser 11 can perform better heat exchange and temperature reduction.

In one embodiment of the present utility model, the air inlet plate 12 may employ a grid plate, which may employ a rectangular grid plate. The grating plates are provided with grating holes which are uniformly distributed, and the second air inlets 13 are formed by the grating holes of the grating plates. The grid holes can be round holes or rectangular holes. The air inlet plate 12 is simple in structure, and the second air inlet 13 can be formed through grid holes in the grid plate, so that external air can enter the ventilation channel more uniformly, and uniform heat exchange and cooling of the condenser 11 can be realized better. The air inlet plate 12 may be fixed to the top of the fixing frame 6 by screws, and it will be understood that the air inlet plate 12 may be fixed to the top of the fixing frame 6 by other means. This is by way of example only and is not intended to limit the scope of the claims.

In one embodiment of the present utility model, the air inlet plate 12 is detachably disposed on the inner wall of the casing 1, and the air inlet plate 12 and the casing 1 are respectively provided with a buckle and a slot that are mutually in snap fit to realize the detachable connection of the air inlet plate 12 and the casing 1. The air inlet plate 12 can be provided with a connecting rod which extends outwards of one plate surface of the air inlet plate 12, and a clamping groove is formed at the end part of the connecting rod. Correspondingly, the inner wall of the casing 1 is provided with a buckle protruding out of the inner wall, and the size and the shape of the buckle are matched with the clamping groove, so that the buckle can be tightly clamped in the clamping groove, and the detachable connection of the air inlet plate 12 and the inner wall of the casing 1 is realized. It can be understood that a clamping groove can be formed in the air inlet plate 12, and a buckle is arranged on the inner wall of the casing 1, so that the clamping groove is matched with the buckle to realize detachable connection of the air inlet plate 12 and the inner wall of the casing 1.

The air inlet plate 12 is detachably matched with the inner wall of the shell 1 through a buckle and a clamping groove, so that the air inlet plate 12 can be quickly disassembled and assembled.

In one embodiment of the utility model, the dehumidifier further comprises a fan 14 and a wind wheel 15, wherein the fan 14 and the wind wheel 15 are arranged in the ventilation channel, and the fan 14 and the wind wheel 15 are located at a position of the ventilation channel far from the first opening 3. The fan 14 is connected with the wind wheel 15, and is used for driving the wind wheel 15 to rotate, so that external air can enter the ventilation channel through the first air inlet 5 and/or the second air inlet 13, and the air in the ventilation channel is discharged out of the dehumidifier through the air outlet. The fan 14 is connected with the wind wheel 15, and when the fan 14 drives the wind wheel 15 to rotate, the wind wheel 15 can drive the air flow to enter the ventilation channel from the first air inlet 5 and the second air inlet 13 faster.

In one embodiment of the utility model, in connection with fig. 8, the drive mechanism comprises a motor 16 and a transmission rod 17, wherein, in connection with fig. 6, the motor 16 is arranged on the left end plate 8. The flabellum 7 includes initiative flabellum and driven flabellum, and the output of motor 16 passes left end board 8 and is connected with the one end of initiative flabellum, and the other end of all flabellums 7 is provided with pivot 18 respectively, and each pivot 18 can pass through the bearing with right end board 9 respectively and articulate, and the other end of all flabellums 7 still is provided with connecting axle 19, and connecting axle 19 can with pivot 18 parallel arrangement. The connecting shafts 19 are respectively connected with the transmission rods 17 so as to drive the transmission rods 17 to move along a preset track when the driving fan blades turn over, and further drive the fan blades 7 to switch between an unfolding state and a folding state. In fig. 9 and fig. 10, the preset track may be an arc-shaped elongated hole 20, and when the fan blades 7 are in the open state and the closed state respectively, the connecting shafts 19 on the driving rod 17 are located at two ends of the elongated hole 20 respectively correspondingly. The driving structure can drive the driving fan blades to act so as to realize the rotation control of all the fan blades 7, so that all the fan blades 7 can synchronously act, and further the first air inlet 5 can be rapidly plugged and opened. Of course, it is understood that other manners of driving the fan 7 may be adopted, for example, the motor 16 is connected with a driving fan, the driving fan is connected with a driving gear, the driving gear drives a rack to move, and the rack is connected with a driven fan through a driven gear. This is merely by way of example and does not limit the scope of the claims.

In one embodiment of the present utility model, the dehumidifier further includes a compressor 21, and the compressor 21 may be disposed in the cabinet 1 below the evaporator 2. The compressor 21 is connected to the condenser 11 such that the refrigerant in the compressor 21 can flow to the condenser 11, the condenser 11 is also connected to the evaporator 2 such that the refrigerant flowing through the condenser 11 can flow to the evaporator 2, and the evaporator 2 is also connected to the compressor 21 such that the refrigerant flowing through the evaporator 2 can flow back to the compressor 21, forming a unidirectional circulation of the refrigerant. The compressor 21 is connected with the condenser 11 and the evaporator 2, so that the refrigeration of the dehumidifier is realized, the structure is simple, and the realization is convenient.

While various embodiments of the present utility model have been described in detail, the present utility model is not limited to these specific embodiments, and various modifications and embodiments can be made by those skilled in the art on the basis of the inventive concept, and these modifications and modifications should be included in the scope of the claimed utility model.

Claims (8)

1. A dehumidifier comprises a shell (1), wherein a ventilation channel is formed in the shell (1), an evaporator (2) is arranged in the ventilation channel, a first opening (3) and a second opening (4) which are communicated with the ventilation channel are arranged on the shell (1), and the second opening (4) forms an air outlet for discharging gas flowing through the ventilation channel out of the dehumidifier; the dehumidifier is characterized by further comprising an air inlet module;

The air inlet module is arranged in the ventilation channel and positioned between the evaporator and the first opening (3) and is provided with a first air inlet (5), and the air inlet module can be opened and closed so that the first air inlet (5) is opened or closed; when the first air inlet (5) is closed, liquid water condensed on the outer surface of the evaporator (2) can freeze on the outer surface of the evaporator (2); when the first air inlet (5) is opened, external air enters the ventilation channel at least through the first air inlet (5) and flows through the outer surface of the evaporator (2), so that the ice layer on the outer surface of the evaporator (2) melts and takes away dirt on the outer surface of the evaporator (2).

2. Dehumidifier according to claim 1, characterized in that the air intake module comprises a fixed frame (6), fan blades (7) arranged on the fixed frame (6), and a driving mechanism for driving the fan blades (7) to rotate to open or close the first air intake (5).

3. Dehumidifier according to claim 1, characterized in that the air intake module further comprises an air intake plate (12), the air intake plate (12) is arranged on the first opening (3) and is positioned above the air intake module, a second air intake (13) which is normally open is arranged on the air intake plate (12), and the air intake of the second air intake (13) is smaller than the air intake of the first air intake (5).

4. A dehumidifier according to claim 3, further comprising a condenser (11), the upper half of the condenser (11) being higher than the evaporator (2), and the portion of the condenser (11) higher than the evaporator (2) being in direct opposition to the air intake plate (12).

5. Dehumidifier according to claim 1, further comprising a fan (14) and a wind wheel (15), wherein the fan (14) and the wind wheel (15) are arranged in the ventilation channel, and the fan (14) is connected with the wind wheel (15) and is used for driving the wind wheel (15) to rotate so that the gas in the ventilation channel is discharged out of the dehumidifier through the air outlet.

6. Dehumidifier according to claim 2, characterized in that the fan blades (7) comprise a plurality of fan blades, the fixing frame (6) comprises a left end plate (8), a right end plate (9) and an upper end plate (10), two ends of the fan blades (7) are respectively hinged on the left end plate (8) and the right end plate (9), the fan blades (7) are sequentially arranged along the left end plate (8) and the right end plate (9) from top to bottom, the fan blades (7) have an unfolding state and a folding state, and when the fan blades (7) are unfolded, the first air inlet (5) is formed between two adjacent fan blades (7); when the fan blades (7) are folded, the first air inlet (5) is closed, and the upper part of each fan blade (7) is attached to the lower part of the adjacent fan blade (7).

7. The dehumidifier according to claim 6, wherein the driving mechanism comprises a motor (16) and a transmission rod (17), the motor (16) is arranged on the left end plate (8), the fan blades (7) comprise driving fan blades and driven fan blades, the output end of the motor (16) penetrates through the left end plate (8) to be connected with one end of the driving fan blades, the other ends of all the fan blades (7) are respectively provided with a rotating shaft (18), the rotating shafts (18) are respectively hinged with the right end plate (9), the other ends of all the fan blades (7) are also provided with connecting shafts (19), and the connecting shafts (19) are respectively connected with the transmission rod (17) so as to drive the transmission rod (17) to move along a preset track when the driving fan blades turn over, and further drive the fan blades (7) to switch between an unfolded state and a folded state.

8. Dehumidifier according to claim 4, characterized in that it further comprises a compressor (21), said compressor (21) being connected to said condenser (11) so that the refrigerant in said compressor (21) can flow to said condenser (11), said condenser (11) being further connected to said evaporator (2) so that the refrigerant flowing through said condenser (11) can flow to said evaporator (2), said evaporator (2) being further connected to said compressor (21) so that the refrigerant flowing through said evaporator (2) can flow back to said compressor (21).