CN219640378U - Dehumidifier - Google Patents

Abstract

The utility model provides a dehumidifier, and relates to the technical field of dehumidifiers. The dehumidifier includes: the water receiving disc, the water tank, the shell component and the water pumping device; the water receiving disc is positioned in the shell assembly, and the water tank is detachably connected with the shell assembly and positioned below the water receiving disc and is used for collecting condensed water discharged by the water receiving disc; the water pumping device comprises a water inlet assembly, a water pump piece and a water drainage assembly; one end of the water inlet component is positioned in the water tank, the other end of the water inlet component is communicated with the inlet of the water pump, one end of the water outlet component is communicated with the outlet of the water pump, and the other end of the water outlet component is communicated with the outside. The dehumidifier solves the problem of dependence on gravity conditions when the dehumidifier drains water, and improves the adaptability of the dehumidifier to application scenes.

Description

Dehumidifier

Technical Field

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

Background

The dehumidifier is also called as dehumidifier, the dehumidifier uses the evaporator to cool to condense the water in the air, and uses the water pan below the evaporator to collect the water and then discharge it to the water tank. When the liquid water in the water tank is accumulated to a certain water level, the water tank is taken out for draining.

In the related art, in order to omit the work of disassembling the water tank for draining, a water receiving disc is directly communicated with a sewer by utilizing a water pipe, and the water is directly drained by means of gravity. However, in the case where the drop between the water receiving tray and the sewer is small or the sewer is higher than the water receiving tray, these drainage methods by gravity cannot be realized.

Disclosure of Invention

The utility model provides a dehumidifier which can solve the problem that the dehumidifier cannot drain water by gravity.

The technical scheme is as follows:

a dehumidifier, the dehumidifier comprising: the water receiving disc, the water tank, the shell component and the water pumping device; the water receiving disc is positioned in the shell assembly, and the water tank is detachably connected with the shell assembly and positioned below the water receiving disc and used for collecting condensed water discharged by the water receiving disc;

the water pumping device comprises a water inlet assembly, a water pump piece and a water drainage assembly;

one end of the water inlet component is positioned in the water tank, the other end of the water inlet component is communicated with the inlet of the water pump, one end of the water drainage component is communicated with the outlet of the water pump, and the other end of the water drainage component is communicated with the outside.

In some embodiments, the water pump member is located within the housing assembly;

the water inlet assembly comprises a first water inlet pipe, and the water outlet assembly comprises a first water outlet pipe;

one end of the first water inlet pipe is communicated with the inlet of the water pump, and the other end of the first water inlet pipe extends into the water tank; one end of the first drain pipe is communicated with the outlet of the water pump, and the other end of the first drain pipe extends to the outer side face or the bottom face of the shell assembly in the axial direction.

In some embodiments, the water intake assembly further comprises a second water intake pipe, a first joint, and a second joint;

the second water inlet pipe is positioned in the water tank, one end of the second water inlet pipe extends to the bottom of the water tank, and the other end of the second water inlet pipe is communicated with a second joint on the side wall of the water tank;

the first connector is positioned on the surface of the shell assembly, and the first water inlet pipe is communicated between the second connector and the water pump inlet;

the water tank is in a connection state with the shell component, the first connector is communicated with the second connector, and the water pump piece operates to pump out condensed water in the water tank.

In some embodiments, the second joint is located on a side wall of the tank facing the housing assembly, and near a top of the tank.

In some embodiments, the drain assembly further comprises a third joint and a second drain pipe;

the third joint is located on the surface of the shell assembly, the inner side end of the third joint is communicated with the first drain pipe, the outer side end of the third joint is used for being connected with the second drain pipe, and the second drain pipe is located outside the shell assembly.

In some embodiments, the dehumidifier further comprises a water level detection device comprising a first water level sensor, a second water level sensor, and a controller;

the first water level sensor and the second water level sensor are respectively positioned in the water tank, the position of the first water level sensor corresponds to the high water level of the water tank, and the position of the second water level sensor corresponds to the low water level of the water tank;

the first water level sensor and the second water level sensor are respectively and electrically connected with the controller, and the controller is used for controlling the water pump to start when the first water level sensor is triggered and controlling the water pump to stop when the second water level sensor is triggered.

In some embodiments, a water outlet pipe is arranged at the bottom of the water receiving disc and is used for discharging water into the water tank;

the top of the water tank is provided with a water receiving port, and the water receiving port corresponds to the outlet position of the water outlet pipe.

In some embodiments, a water retaining wall is further arranged at the bottom of the water receiving tray, the water retaining wall is arranged close to the outlet of the water outlet pipe, the water retaining wall protrudes downwards along the bottom surface of the water receiving tray, and the water retaining wall is used for preventing condensed water of the water outlet pipe from flowing backwards along the wall.

In some embodiments, a convex part protruding downwards is arranged at the bottom of the water receiving disc, one end of the water outlet pipe is connected with the convex part, and the other end of the water outlet pipe extends along the horizontal direction;

the water retaining wall is positioned on the side surface of the convex part, which is close to the water outlet pipe.

In some embodiments, the water outlet pipe is arranged along the horizontal direction, and the water retaining wall is located on the lower side surface of the water outlet pipe.

In some embodiments, the housing assembly includes a front shell, a rear shell, a top cover, and a chassis; the front shell, the rear shell, the top cover and the chassis) enclose an accommodating space;

the lower part of the rear shell is provided with an avoidance port, and the water tank detachably stretches into the accommodating space through the avoidance port;

the water receiving tray is positioned in the accommodating space and is connected with at least one of the front shell and the rear shell.

The technical scheme provided by the utility model has the beneficial effects that at least:

the dehumidifier of the utility model is provided with a water pumping device, the water pumping device is communicated with the water tank and the water pump member by utilizing the water inlet assembly, and is communicated with the outside and the water pump member by utilizing the water outlet assembly, so that condensed water in the water tank can be pumped out by utilizing the water pump member and discharged to the outside, such as a sewer with higher position; therefore, the dependence on gravity conditions during drainage of the dehumidifier is solved, and the adaptability of the dehumidifier to application scenes is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

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

fig. 2 is a schematic structural view of a water tank according to an embodiment of the present utility model;

FIG. 3 is a schematic view of an internal structure of a dehumidifier according to an embodiment of the present utility model;

FIG. 4 is an enlarged view of a partial structure at A in FIG. 3;

fig. 5 is a schematic view of the bottom structure of a water pan according to an embodiment of the present utility model;

fig. 6 is a structural exploded view of a dehumidifier provided in an embodiment of the present utility model.

Reference numerals in the drawings are respectively expressed as:

1. a water receiving tray; 11. a water outlet pipe; 12. a water retaining wall; 13. a male portion;

2. a water tank; 21. a water receiving port; 22. a handle part;

3. a housing assembly; 31. a front shell; 32. a rear case; 321. an avoidance port; 322. a first tuyere; 33. a top cover; 331. a second tuyere; 34. a chassis;

4. a water pumping device; 41. a water inlet assembly; 411. a first water inlet pipe; 412. a second water inlet pipe; 413. a first joint; 414. a second joint; 42. a water pump member; 43. a drainage assembly; 431. a first drain pipe; 432. a third joint;

5. a water level detecting device; 51. a first water level sensor; 52. a second water level sensor;

6. a heat exchanger assembly;

7. a compressor assembly;

8. a fan assembly; 81. a volute;

9. an electrical box assembly;

10. a screen assembly.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the utility model. Rather, they are merely examples of apparatus and methods consistent with aspects of the utility model as detailed in the accompanying claims.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in fig. 1 are merely for convenience in describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Unless defined otherwise, all technical terms used in the embodiments of the present utility model have the same meaning as commonly understood by one of ordinary skill in the art.

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the embodiments of the present utility model will be described in further detail with reference to the accompanying drawings.

FIG. 1 is a schematic view of a dehumidifier according to an embodiment of the present utility model; fig. 2 is a schematic structural view of a water tank 2 according to an embodiment of the present utility model; fig. 3 is a schematic diagram of an internal structure of a dehumidifier according to an embodiment of the present utility model.

1-3, this embodiment provides a dehumidifier, the dehumidifier comprising: the water receiving disc 1, the water tank 2, the shell assembly 3 and the water pumping device 4; the water collector 1 is located in the housing assembly 3, and the water tank 2 is detachably connected with the housing assembly 3 and located below the water collector 1 for collecting condensed water discharged by the water collector 1.

The water pumping device 4 comprises a water inlet assembly 41, a water pump member 42 and a water discharge assembly 43; one end of the water inlet assembly 41 is positioned in the water tank 2, the other end is communicated with the inlet of the water pump 42, one end of the water outlet assembly 43 is communicated with the outlet of the water pump 42, and the other end is communicated with the outside.

The dehumidifier of the embodiment is provided with a water pumping device 4, wherein the water pumping device 4 is communicated with the water tank 2 and the water pump member 42 by utilizing the water inlet assembly 41, and is communicated with the outside and the water pump member 42 by utilizing the water outlet assembly 43, so that condensed water in the water tank 2 can be pumped out by utilizing the water pump member 42 and discharged to the outside, such as a sewer with a higher position; therefore, the dependence on gravity conditions during drainage of the dehumidifier is solved, and the adaptability of the dehumidifier to application scenes is improved.

Illustratively, the drain assembly 43 is communicated to the sewer, and the condensed water in the water tank 2 is pumped out by the driving of the water pump member 42, so that the dependency on gravity drainage is eliminated.

In some possible implementations, referring to fig. 6, the dehumidifier further includes a heat exchanger assembly 6, a compressor assembly 7, a blower assembly 8, and an electrical box assembly 9; the heat exchanger component 6, the compressor component 7, the fan component 8 and the electrical box component 9 are respectively located in the shell component 3, wherein the heat exchanger component 6 is located above the water receiving disc 1, the fan component 8 is located on one side of the heat exchanger component 6, and the compressor component 7 is connected with the heat exchanger component 6 and used for providing cold energy for the heat exchanger component 6. The electrical box assembly 9 is respectively and electrically connected with the compressor assembly 7 and the fan assembly 8, so that power supply and control of the compressor assembly 7 and the fan assembly 8 are realized.

Optionally, the fan assembly 8 includes a volute 81, the volute 81 is connected with the inner wall of the housing assembly 3, and a closed air duct is formed inside the housing assembly 3, so that the blowing effect of the fan assembly 8 is improved.

As shown in connection with fig. 2-4, in some embodiments, the water pump member 42 is located within the housing assembly 3; the water inlet assembly 41 includes a first water inlet pipe 411 and the water outlet assembly 43 includes a first water outlet pipe 431.

One end of the first water inlet pipe 411 is communicated with the inlet of the water pump member 42, and the other end extends into the water tank 2; one end of the first drain pipe 431 communicates with the outlet of the water pump member 42, and the other end extends to the outside of the housing assembly 3.

The water pump 42 is arranged in the shell assembly 3, so that the appearance integrity of the dehumidifier can be ensured, and the internal space of the dehumidifier can be fully utilized.

The inlet of the water pump member 42 is connected to the water tank 2 through the first water inlet pipe 411, and the outlet of the water pump member 42 is communicated with the outside of the housing assembly 3 through the first water outlet pipe 431. When the water pump member 42 is started, condensed water in the water tank 2 is discharged to the outside by the driving of the water pump member 42.

In some possible implementations, one end of the first water inlet pipe 411 can extend into the water tank 2 by manual or automatic means after the water tank 2 is fitted into the housing assembly 3.

As shown in connection with fig. 2-4, in some embodiments, the water inlet assembly 41 further includes a second water inlet tube 412, a first joint 413, and a second joint 414.

The second water inlet pipe 412 is positioned in the water tank 2, one end of the second water inlet pipe 412 extends to the bottom of the water tank 2, and the other end is communicated with a second joint 414 on the side wall of the water tank 2; the first joint 413 is located on the surface of the housing assembly 3, and the first water inlet pipe 411 is communicated between the second joint 414 and the inlet of the water pump member 42.

The water tank 2 is connected with the housing assembly 3, the first joint 413 and the second joint 414 are communicated, and the water pump member 42 operates to pump out condensed water in the water tank 2.

The inlet of the water pump member 42 is communicated with the water tank 2 by using a pipeline channel formed by the first water inlet pipe 411, the first joint 413, the second joint 414 and the second water inlet pipe 412, and when the water tank 2 is matched with the shell assembly 3, the first joint 413 and the second joint 414 are communicated, so that the water pump member 42 can pump out condensed water in the water tank 2 when in operation.

The pipeline is respectively hidden and designed in the shell component 3 and the water tank 2, the water inlet component 41 is communicated when the water tank 2 is assembled with the shell component 3, and the structure is simple and the use is convenient.

As shown in connection with fig. 2, in some embodiments, the second joint 414 is located on a side wall of the tank 2 facing the housing assembly 3, and near the top of the tank 2.

In some possible implementations, the top of the water tank 2 is also provided with a handle portion, facilitating the lifting of the water tank 2 by the user.

The second joint 414 is disposed at a position of the water tank 2 toward the side wall of the housing assembly 3 near the top, thereby preventing the condensed water in the water tank 2 from leaking out through the second joint 414.

In some embodiments, as shown in connection with fig. 4, the drain assembly 43 further includes a third fitting 433 and a second drain pipe (not shown).

The third joint 433 is located at the surface of the housing assembly 3, the inner end of the third joint 433 is communicated with the first drain pipe 431, and the outer end of the third joint 433 is used for being connected with the second drain pipe, and the second drain pipe is located outside the housing assembly 3.

In order not to damage the appearance integrity of the dehumidifier and improve the flexibility of the drainage assembly 43, a third joint 433 is designed on the surface of the shell assembly 3, one side of the third joint 433 is used for connecting a first drainage pipe 431 inside the shell assembly 3, the other side of the third joint 433 is used for connecting a second drainage pipe outside the shell assembly 3, the second drainage pipe can be used as an externally hung accessory of the dehumidifier, and the length of the second drainage pipe can be flexibly selected so as to realize the drainage requirements of different application scenes.

As shown in connection with fig. 2, in some embodiments, the dehumidifier further includes a water level detection device 5, and the water level detection device 5 includes a first water level sensor 51, a second water level sensor 52, and a controller (not shown in the drawings).

The first water level sensor 51 and the second water level sensor 52 are respectively located in the water tank 2, the position of the first water level sensor 51 corresponds to the high water level of the water tank 2, and the position of the second water level sensor 52 corresponds to the low water level of the water tank 2.

The first water level sensor 51 and the second water level sensor 52 are respectively electrically connected with a controller, and the controller is used for controlling the water pump 42 to start when the first water level sensor 51 triggers and controlling the water pump 42 to stop when the second water level sensor 52 triggers.

By utilizing two water level sensors in the water tank 2, the automatic detection and drainage of the dehumidifier can be realized, and the automation and intelligent level of the dehumidifier can be improved.

Wherein the controller may be provided on the side of the water tank 2 or on the side of the housing assembly 3 or integrated with the control module of the dehumidifier.

As shown in fig. 2 and 5, in some embodiments, a water outlet pipe 11 is arranged at the bottom of the water receiving disc 1, and the water outlet pipe 11 is used for discharging water into the water tank 2; the top of the water tank 2 is provided with a water receiving port 21, and the water receiving port 21 corresponds to the outlet position of the water outlet pipe 11.

The water receiving disc 1 collects condensed water dropped by the evaporator and is discharged outwards through the water outlet pipe 11 at the bottom, and the condensed water flows into the water tank 2 through the water receiving port 21 to finish the collection of the condensed water.

As shown in fig. 5, in some embodiments, a water retaining wall 12 is further disposed at the bottom of the water receiving tray 1, where the water retaining wall 12 is disposed near the outlet of the water outlet pipe 11, and the water retaining wall 12 protrudes downward along the bottom surface of the water receiving tray 1, and the water retaining wall 12 is used to prevent the condensed water of the water outlet pipe 11 from flowing back along the wall.

Due to the surface tension of the water, when the water flow rate of the water outlet pipe 11 is smaller or the flow rate is slower, the condensed water can flow against the bottom side surface of the water outlet pipe 11 and finally flow downwards along the side wall of the shell assembly 3, so that the condensed water leaks.

Therefore, in this embodiment, the water retaining wall 12 is disposed at the bottom surface of the water receiving tray 1 near the outlet position of the water outlet pipe 11, and the water retaining wall 12 can utilize a larger height difference to block the adhesion backflow of the condensed water, so that the condensed water drops downwards, thereby solving the leakage problem caused by the adhesion backflow.

As shown in fig. 5, in some embodiments, the bottom of the water receiving tray 1 is provided with a convex portion 13 protruding downward, one end of the water outlet pipe 11 is connected with the convex portion 13, and the other end of the water outlet pipe 11 extends in a horizontal direction; the water retaining wall 12 is located on the side of the male portion 13 adjacent to the outlet pipe 11.

In order to improve the water outlet efficiency of the water outlet pipe 11, the water receiving tray 1 is provided with a convex part 13 protruding downwards, condensed water is collected towards the convex part 13 under the action of gravity, and is discharged to the water tank 2 along the water outlet pipe 11. The water retaining cavity is arranged on the side surface of the convex part 13, which is close to the water outlet pipe 11, so that the water retaining effect is improved, and the die sinking difficulty of the water receiving disc 1 is reduced.

Alternatively, when the water outlet pipe 11 is arranged in the horizontal direction, the water blocking wall 12 is located at the lower side of the water outlet pipe 11. The water retaining wall 12 is positioned above the water receiving opening 21, so that the water retaining wall 12 can prevent the dropped condensed water from entering the water tank 2.

As shown in connection with fig. 6, in some embodiments, the housing assembly 3 includes a front shell 31, a rear shell 32, a top cover 33, and a chassis 34; the front case 31, the rear case 32, the top cover 33 and the bottom chassis 34 enclose an accommodating space.

Alternatively, the first drain pipe 431 extends to the front case 31, and drains outward from the front case 31; or extends to the rear housing 32, draining water outwardly from the rear housing 32; or, extends to the junction of the front case 31 and the rear case 32, and drains outwardly from the junction of the front case 31 and the rear case 32.

Alternatively, the accommodating space may be a cylindrical space or a cubic space, which is not limited in the present utility model.

Further, the front case 31 corresponds to the front side of the dehumidifier, and the rear case 32 corresponds to the rear side of the dehumidifier, and it is understood that the front side of the dehumidifier, i.e., the panel side, serves as the exterior surface of the dehumidifier.

The lower part of the rear shell 32 is provided with an avoidance port 321, and the water tank 2 detachably stretches into the accommodating space through the avoidance port 321. Illustratively, a tank accommodating chamber is disposed at a lower portion of the accommodating space, and communicates with the escape port 321, through which the tank 2 can be loaded into the tank accommodating chamber or unloaded from the inside.

The water receiving tray 1 is located in the receiving space and is connected to at least one of the front case 31 and the rear case 32 so as to be supported and fixed above the water tank 2.

In some possible implementations, the compressor assembly 7 is mounted on the chassis 34, so as to have better stability, and to be able to effectively reduce vibrations and operating noise.

The partial structure of the water pan 1 extends toward the chassis 34, thereby dividing the lower portion of the accommodating space into two parts of a tank accommodating compartment and a compressor accommodating compartment.

In other possible implementations, the upper portion of the rear shell 32 is provided with a first air port 322, the top cover 33 is provided with a second air port 331, the first air port 322 and the second air port 331 are respectively communicated with the fan assembly 8, the heat exchanger assembly 6 is located between the fan assembly 8 and the first air port 322, or the heat exchanger assembly 6 is located between the fan assembly 8 and the second air port 331. Air enters from one of the first air port 322 and the second air port 331, flows through the heat exchanger component 6 and the fan component 8, and is blown out from the other of the first air port 322 and the second air port 331, and moisture in the air is condensed and separated out on the surface of the heat exchanger component 6, so that air dehumidification is achieved.

Further, the first air port 322 is used as an air inlet, and the filter screen assembly 10 is arranged on the first air port 322, so that an air inlet filtering effect is achieved, sundries are prevented from entering, and a certain air purifying effect is achieved.

It should be noted that references herein to "a number", "at least one" means one or more, and "a plurality", "at least two" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present specification, reference to the terms "certain embodiments," "one embodiment," "some embodiments," "an exemplary embodiment," "an example," "a particular example," or "some examples" means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model.

The foregoing description of the embodiments of the utility model is not intended to limit the utility model, but rather, the utility model is to be construed as limited to the embodiments disclosed.

Claims (11)

1. A dehumidifier, the dehumidifier comprising: the water receiving disc (1), the water tank (2), the shell component (3) and the water pumping device (4); the water receiving disc (1) is positioned in the shell assembly (3), the water tank (2) is detachably connected with the shell assembly (3) and positioned below the water receiving disc (1) and is used for collecting condensed water discharged by the water receiving disc (1);

the water pumping device (4) comprises a water inlet component (41), a water pump component (42) and a water draining component (43);

one end of the water inlet component (41) is positioned in the water tank (2), the other end of the water inlet component is communicated with the inlet of the water pump component (42), one end of the water outlet component (43) is communicated with the outlet of the water pump component (42), and the other end of the water outlet component is communicated with the outside.

2. Dehumidifier according to claim 1, characterized in that the water pump (42) is located within the housing assembly (3);

the water inlet assembly (41) comprises a first water inlet pipe (411), and the water outlet assembly (43) comprises a first water outlet pipe (431);

one end of the first water inlet pipe (411) is communicated with the inlet of the water pump (42), and the other end of the first water inlet pipe extends into the water tank (2); one end of the first drain pipe (431) is communicated with the outlet of the water pump (42), and the other end of the first drain pipe extends to the circumferential outer side surface or the bottom surface of the shell assembly (3).

3. Dehumidifier according to claim 2, characterized in that the water inlet assembly (41) further comprises a second water inlet pipe (412), a first joint (413) and a second joint (414);

the second water inlet pipe (412) is positioned in the water tank (2), one end of the second water inlet pipe (412) extends to the bottom of the water tank (2), and the other end of the second water inlet pipe is communicated with a second joint (414) on the side wall of the water tank (2);

the first joint (413) is positioned on the surface of the shell assembly (3), and the first water inlet pipe (411) is communicated between the second joint (414) and the inlet of the water pump (42);

the water tank (2) is connected with the shell assembly (3), the first joint (413) is communicated with the second joint (414), and the water pump (42) operates to pump out condensed water in the water tank (2).

4. A dehumidifier according to claim 3, characterized in that the second joint (414) is located at a side wall of the water tank (2) facing the housing assembly (3) and near the top of the water tank (2).

5. Dehumidifier according to claim 2, characterized in that the drain assembly (43) further comprises a third joint (432) and a second drain pipe;

the third joint (432) is located on the surface of the shell assembly (3), the inner side end of the third joint (432) is communicated with the first drain pipe (431), the outer side end of the third joint (432) is used for being connected with the second drain pipe, and the second drain pipe is located outside the shell assembly (3).

6. Dehumidifier according to claim 1, characterized in that the dehumidifier further comprises a water level detection device (5), the water level detection device (5) comprising a first water level sensor (51), a second water level sensor (52) and a controller;

the first water level sensor (51) and the second water level sensor (52) are respectively positioned in the water tank (2), the position of the first water level sensor (51) corresponds to the high water level of the water tank (2), and the position of the second water level sensor (52) corresponds to the low water level of the water tank (2);

the first water level sensor (51) and the second water level sensor (52) are respectively and electrically connected with the controller, the controller is used for controlling the water pump (42) to start when the first water level sensor (51) is triggered, and controlling the water pump (42) to stop when the second water level sensor (52) is triggered.

7. Dehumidifier according to claim 1, characterized in that the bottom of the water pan (1) is provided with a water outlet pipe (11), the water outlet pipe (11) being used for draining water into the water tank (2);

the top of the water tank (2) is provided with a water receiving port (21), and the water receiving port (21) corresponds to the outlet position of the water outlet pipe (11).

8. The dehumidifier according to claim 7, wherein the bottom of the water receiving tray (1) is further provided with a water retaining wall (12), the water retaining wall (12) is arranged close to the outlet of the water outlet pipe (11), the water retaining wall (12) protrudes downwards along the bottom surface of the water receiving tray (1), and the water retaining wall (12) is used for preventing condensed water of the water outlet pipe (11) from adhering to the wall and flowing back.

9. Dehumidifier according to claim 8, characterized in that the bottom of the water pan (1) is provided with a convex part (13) protruding downwards, one end of the water outlet pipe (11) is connected with the convex part (13), and the other end of the water outlet pipe (11) extends along the horizontal direction;

the water retaining wall (12) is positioned on the side surface of the convex part (13) close to the water outlet pipe (11).

10. Dehumidifier according to claim 9, characterized in that the outlet pipe (11) is arranged in a horizontal direction, and that the water retaining wall (12) is located on the underside of the outlet pipe (11).

11. Dehumidifier according to any one of claims 1-10, characterized in that the housing assembly (3) comprises a front shell (31), a rear shell (32), a top cover (33) and a chassis (34); the front shell (31), the rear shell (32), the top cover (33) and the chassis (34) enclose an accommodating space;

the lower part of the rear shell (32) is provided with an avoidance port (321), and the water tank (2) detachably stretches into the accommodating space through the avoidance port (321);

the water receiving tray (1) is positioned in the accommodating space and is connected with at least one of the front shell (31) and the rear shell (32).