CN220582587U

CN220582587U - Dehumidifier

Info

Publication number: CN220582587U
Application number: CN202321704872.7U
Authority: CN
Inventors: 宋威; 李柯飞
Original assignee: Hisense Air Conditioning Co Ltd
Current assignee: Hisense Air Conditioning Co Ltd
Priority date: 2023-06-30
Filing date: 2023-06-30
Publication date: 2024-03-12
Anticipated expiration: 2033-06-30

Abstract

The utility model proposes a dehumidifier comprising: the shell is provided with an air supply cavity and a containing cavity, and is provided with a shell air inlet and a shell air outlet; the evaporator is arranged in the accommodating cavity and is positioned at the inner side of the air inlet of the shell; the condenser is arranged in the accommodating cavity, is arranged in parallel with the evaporator and is positioned at one side of the evaporator far away from the air inlet of the shell; the fan is arranged in the air supply cavity; the electric control box is arranged in the air supply cavity, and an electric control plate provided with heating components is arranged in the electric control box; a heat sink in contact with the heat generating component; a gap is formed between the evaporator and the condenser, and the radiating fins are positioned in the gap. According to the dehumidifier provided by the utility model, the electric control box is arranged in the air supply cavity, and the radiating fins are arranged between the evaporator and the condenser, so that low-temperature dry air cooled and dehumidified by the evaporator flows through the radiating fins to take away heat, the radiating effect is effectively improved, and the problem of temperature rise of variable-frequency drive is solved.

Description

Dehumidifier

Technical Field

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

Background

The dehumidifier is a device for drying moist air and is widely applied to families and industrial places; compared with a fixed-frequency type, the variable-frequency dehumidifier can set corresponding torque limit to protect machinery from damage after variable-frequency speed regulation, and ensure the dehumidification continuity and the product reliability; moreover, the variable-frequency dehumidifier has the advantage of energy conservation, so that the variable-frequency dehumidifier is applied to more and more wide application.

However, the variable-frequency dehumidifier needs to use related semiconductor heating components such as PFC (power factor correction module), IPM (intelligent power module), a rectifier bridge, a large electrolytic capacitor and the like, and generates larger heat, so that the temperature rise is higher, and the control difficulty is higher. In the prior art, the heat dissipation of the electric control box of the frequency conversion integrated dehumidifier is carried out by adopting a radiator, part of the electric control box is matched with the heat dissipation holes on the electric control box to realize the heat dissipation of heating components in the electric control box by utilizing air convection, and the radiator is generally placed on the air outlet side of the condenser for heat dissipation. When the air outlet side of the condenser is placed on the radiator, the air subjected to heat exchange through the condenser is heated air, and the heated air is heated air, so that certain heat can be taken away after the heated air flows through the radiator, but the radiating effect is poor, so that the heat generated by a heating device of an electric control part of the variable-frequency dehumidifier cannot be timely dissipated, each component in the electric control box is easy to fail and even burn out, the dehumidifier is caused to work failure, and the reliability and the service life of the dehumidifier are influenced.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems in the related art to some extent. For this purpose,

according to an embodiment of the present disclosure, there is provided a dehumidifier including:

the shell is provided with a top end and a bottom end, an air supply cavity and a containing cavity are arranged in the shell along the direction from the top end of the shell to the bottom end of the shell, and a shell air inlet and a shell air outlet are formed in the shell;

the evaporator is arranged in the accommodating cavity and positioned at the inner side of the air inlet of the shell;

the condenser is arranged in the accommodating cavity, is arranged in parallel with the evaporator and is positioned at one side of the evaporator far away from the air inlet of the shell;

the fan is arranged in the air supply cavity;

the electric control box is arranged in the air supply cavity and is arranged at the top end of the heat exchanger, an electric control plate is arranged in the electric control box, and heating components are arranged on the electric control plate;

a radiator in contact with the heating element and having a radiating fin exposed in the accommodating cavity;

the air outside the shell enters the accommodating cavity through the shell air inlet under the operation of the fan, and flows through the heat radiating fins after exchanging heat with the evaporator, exchanges heat with the condenser, enters the air supply cavity and flows out from the shell air outlet.

The dehumidifier that this technical scheme provided, it is frequency conversion integral type, through placing automatically controlled box in the air supply intracavity, and will be used for radiating fin setting between evaporimeter and condenser, that is to say set up in the air-out side of evaporimeter for the low temperature dry air after the evaporimeter cooling dehumidification, the heat is taken away to the radiating fin of flow-through radiator, thereby dispels the heat to high temperature devices such as heating components and parts, and the radiating effect is effectively improved, has solved frequency conversion driven temperature rise problem, has increased the life and the operational reliability of heating components and parts by a wide margin.

According to an embodiment of the disclosure, the heat radiator includes a substrate and a plurality of heat dissipation fins, the substrate contacts with the heating element, the plurality of heat dissipation fins are parallel to each other and are arranged on the substrate at intervals, an airflow channel is formed between adjacent heat dissipation fins, and an extending direction of the gap is parallel to the heat dissipation fins; the arrangement ensures that the air guiding direction of the radiating fins is consistent with the airflow flowing direction of the gaps, thereby improving the radiating effect.

According to the embodiment of the disclosure, at least one notch is formed in the radiating fin, and the notch is formed by sinking the free end of the radiating fin towards the direction of the substrate; through setting up the notch, avoid radiating fin overlength, effectively reduced the windage.

According to an embodiment of the disclosure, the dehumidifier further comprises a shielding plate disposed in the casing, the shielding plate is connected with the casing to separate the air supply cavity from the accommodating cavity, the top end of the evaporator and the top end of the condenser are in contact with the shielding plate, and the electric control box is mounted on the shielding plate.

According to the embodiment of the disclosure, the bottom wall of the electric control box is provided with the first port, the shielding plate is provided with the second port corresponding to the first port, and the radiating fins sequentially penetrate through the first port and the second port and extend into the gap, so that low-temperature dry air after heat exchange of the evaporator can be utilized to a greater extent to realize heat dissipation of the heating element.

According to the embodiment of the disclosure, the third port is formed between the air supply cavity and the accommodating cavity, the third port is used for allowing the heating dry air to enter the air supply cavity, the electric control box is provided with the air inlet and the air outlet, the air inlet is formed in the side wall, close to the third port, of the electric control box, under the operation of the fan, the heating dry air enters the electric control box from the air inlet, flows through the heating components and parts and then flows out of the electric control box from the air outlet, and the heat dissipation of the heating components and parts inside the electric control box is realized by utilizing the air convection in the air supply cavity, so that the temperature of the electric control box is reduced, and the service life of each heating component is prolonged.

According to the embodiment of the disclosure, the length direction of the electric control box is parallel to the axial direction of the rotating shaft of the centrifugal wind wheel of the fan, the air outlets are formed in two side walls of the electric control box which are oppositely arranged in the length direction of the electric control box, the electric control box and the fan are arranged at intervals along the vertical direction, and the vertical direction is the height direction between the top end of the shell and the bottom end of the shell; the arrangement ensures that air flow entering the air supply cavity enters the electric control box through the air inlets and is respectively sucked into the air inlets of the two fans through the air outlets at the two ends, so that the heat dissipation effect is good.

According to an embodiment of the present disclosure, the air inlet includes a plurality of grill holes; and/or the air outlet comprises a plurality of grid holes; the grid holes ensure that the air inlet and the air outlet have larger air inlet areas, the air inlet quantity is increased, and insects are effectively prevented from entering the electric control box.

According to the embodiment of the disclosure, the electric control box comprises a box body and a containing groove, the containing groove is communicated with one end of the box body in the length direction of the box body, the bottom wall of the containing groove is formed by extending the bottom wall of the box body, the first end part of the electric control plate extends into the containing groove to form a variable frequency driving plate, and the radiator is arranged corresponding to the position of the variable frequency driving plate; this setting makes the radiator mainly dispel the heat to the components and parts that generate heat on the frequency conversion drive board, effectively solves frequency conversion driven temperature rise problem.

According to an embodiment of the disclosure, the dehumidifier further comprises a water pan arranged in the accommodating cavity, the water pan divides the accommodating cavity into a heat exchange cavity and a mounting cavity, the heat exchange cavity is positioned between the air supply cavity and the mounting cavity, the bottom ends of the evaporator and the condenser are mounted on the water pan, and the compressor is arranged in the mounting cavity; the probability that the condensed water in the heat exchange cavity enters the installation cavity is reduced by arranging the water receiving disc to receive the condensed water, so that the operation of the compressor is prevented from being influenced.

Drawings

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

FIGS. 1 to 4 are external views of a dehumidifier according to an embodiment of the present disclosure;

fig. 5 is a structural perspective view of a dehumidifier omitting a front panel according to an embodiment of the present disclosure;

FIG. 6 is a structural perspective view of a dehumidifier omitting a back plate according to an embodiment of the present disclosure;

fig. 7 is a structural perspective view of the dehumidifier omitting the first side plate according to an embodiment of the present disclosure;

fig. 8 is a structural perspective view of a dehumidifier according to an embodiment of the present disclosure, omitting another view of the first side plate;

FIG. 9 is a partial view 1 of a dehumidifier omitting a first side plate and a sealing plate in accordance with an embodiment of the present disclosure;

FIG. 10 is a partial view 2 of the dehumidifier omitting the first side plate and the sealing plate in accordance with an embodiment of the present disclosure;

FIG. 11 is a partial view 3 of the dehumidifier omitting the first side plate and the sealing plate in accordance with an embodiment of the present disclosure;

FIG. 12 is a schematic view of airflow inside a chassis according to an embodiment of the present disclosure;

FIG. 13 is a schematic diagram of airflow between an electrical control box and a fan according to an embodiment of the present disclosure;

fig. 14 is a schematic diagram of the connection of an electrical control box to a heat exchanger in accordance with an embodiment of the present disclosure;

FIG. 15 is a schematic view of the structure according to FIG. 14 omitting the sealing plate;

fig. 16 is a schematic diagram of the connection of an electronic control box to a heat sink according to an embodiment of the present disclosure;

fig. 17 is a partial structural exploded view of an electronic control box and a heat sink according to an embodiment of the present disclosure;

fig. 18 is a schematic diagram of a connection of an electronic control box to another view of a heat sink according to an embodiment of the present disclosure;

fig. 19 is a schematic view of airflow direction of an electronic control box according to an embodiment of the present disclosure;

fig. 20 is a schematic structural view of a heat sink according to an embodiment of the present disclosure.

In the above figures: a dehumidifier 100; a housing 1; a shell air inlet 11; a housing air outlet 12; a front panel 13; an upper panel 131; a middle panel 132; a lower panel 133; a rear back plate 14; a top plate 15; a base 16; a roller 161; a first side plate 171; a second side plate 172; a blowing chamber 181; a heat exchange chamber 182; a mounting cavity 183; a third port 184; a compressor 2; a water receiving tray 3; a heat exchanger 4; an evaporator 41; a condenser 42; a sealing plate 43; a shielding plate 44; a fan 5; a volute 51; a fan air inlet 52; a fan outlet 53; an electric control box 6; a case 61; a bottom cover 611; a top cover 612; a receiving groove 62; an electric control board 63; a variable frequency drive plate 631; an air inlet 64; an air outlet 65; a heat sink 7; a heat radiation fin 71; an air flow channel 72; a notch 73; a substrate 74.

Detailed Description

The present utility model will be specifically described below by way of exemplary embodiments. It is to be understood that elements, structures, and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate 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 thus should not be construed as limiting the present utility model.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

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; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The present utility model proposes a dehumidifier 100, and the dehumidifier 100 will be described with reference to fig. 1 to 20, wherein fig. 1 to 4 are external views of the dehumidifier. Referring to fig. 5, the dehumidifier 100 includes a cabinet 1, a compressor 2, a heat exchanger 4, and a blower 5.

Referring to fig. 1 and 5, the cabinet 1 has a substantially rectangular parallelepiped shape, the cabinet 1 may form an overall appearance of the dehumidifier 100, and an accommodating space is defined inside the cabinet 1. The casing 1 has a top end and a bottom end, and the accommodating space is formed therein with an air supply chamber 181 and an accommodating chamber arranged along a direction from the top end of the casing to the bottom end of the casing 1. Referring to fig. 1 to 4, the cabinet 1 includes a front panel 13, a rear panel 14, a top panel 15, a base 16, and first and second side panels 171 and 172 disposed opposite to each other, the front panel 13 is disposed on the front side of the cabinet 1, the rear panel 14 is disposed on the rear side of the cabinet 1 and opposite to the front panel 13 at a distance, and both ends of the front panel 13 in the width direction thereof are respectively connected to the first and second side panels 171 and 172, that is, the first and second side panels 171 and 172 are respectively connected to the left and right sides of the front panel 13. The front panel 13, the rear panel 14, the top panel 15, the base 16, and both side panels enclose a housing space. In this embodiment, the top plate 15 forms the top end of the casing 1, and the base 16 forms the bottom end of the casing 1.

The shell 1 is provided with a shell air inlet 11 and a shell air outlet 12, and the heat exchanger 4 and the fan 5 are arranged in the accommodating space of the shell 1. The housing air inlet 11 may be disposed at a side portion of the housing 1, and the housing air outlet 12 is disposed at a side portion or a top portion of the housing 1, that is, the housing air outlet 12 is disposed on a side plate or a top plate 15 of the housing 1. Taking fig. 3 as an example, in the present embodiment, the housing air inlet 11 is disposed on the front panel 13 of the housing, and the housing air outlet 12 is disposed on the top plate 15 of the housing 1.

The heat exchanger 4 is arranged in the accommodating cavity, and the heat exchanger 4 is used for releasing cold into the air flow flowing through the surface of the heat exchanger 4 so that the temperature of the air flow is lower than the dew point temperature, and water vapor in the air flow is condensed into water. The fan 5 is arranged in the air supply cavity 181, the fan 5 rotates to form negative pressure to drive the air outside the shell 1 to flow into the heat exchange cavity 182 from the shell air inlet 11, and the air is separated out of condensed water through the surface of the heat exchanger 4, so that the air is blown out from the shell air outlet 12 after the humidity of the air flow is reduced and then passes through the fan 5.

Specifically, the heat exchanger 4 includes an evaporator 41 and a condenser 42 arranged in parallel, the refrigerant is subjected to an evaporation process in the evaporator 41, and the refrigerant is subjected to a condensation process in the condenser 42. The evaporator 41 is disposed in the housing 1, and the evaporator 41 is disposed inside the housing air inlet 11, and the condenser 42 is disposed on a side of the evaporator 41 away from the housing air inlet 11.

Referring to fig. 8, 14 and 15, the heat exchanger 4 further includes a shielding plate 44, and the shielding plate 44 is connected to the cabinet to separate the air supply chamber 181 from the receiving chamber, and the top end of the evaporator 41 and the top end of the condenser 42 are in contact with the shielding plate 44. In this embodiment, referring to fig. 8, the side ends of the evaporator 41 and the condenser 42 are respectively provided with an end plate, two sealing plates 43 are connected between the evaporator 41 and the condenser 42, and edges of the sealing plates 43 are detachably connected with two adjacent end plates on the evaporator 41 and the condenser 42. The provision of the sealing plates 43 ensures that the left and right sides of the heat exchanger 4 are impermeable to air so that the air flow through the evaporator 41 can pass completely through the condenser 42. In this embodiment, the seal plate 43 is attached to the end plate by fasteners, which may be bolts or screws.

The blower 5 has a blower air inlet 52 and a blower air outlet 53, the blower air inlet 52 communicates with the air supply chamber 181, and the blower air outlet 53 faces the housing air outlet 12 and communicates with the housing air outlet 12. Wherein, fan 5 is centrifugal fan. In this embodiment, the fan 5 includes a volute 51, a centrifugal wind wheel disposed in the volute 51, and a driving motor connected to the centrifugal wind wheel for driving the centrifugal wind wheel to rotate. The fan air inlet 52 and the fan air outlet 53 are formed on the volute 51, and the fan air inlet 52 is formed on two opposite sides of the volute 51.

With continued reference to fig. 7 and 8, the dehumidifier 100 according to the present application further includes a water receiving tray 3, where the water receiving tray 3 is disposed in the accommodating cavity, and the water receiving tray 3 is disposed on a side of the heat exchanger 4 near the base 16, for receiving condensed water of the heat exchanger 4. Specifically, the water pan 3 divides the accommodating cavity into a heat exchange cavity 182 and a mounting cavity 183 which are arranged up and down, wherein the heat exchange cavity 182 is positioned between the air supply cavity 181 and the mounting cavity 183, and the heat exchanger 4 is positioned in the heat exchange cavity 182 and is mounted on the water pan 3.

That is, the housing 1 is internally formed with an air supply chamber 181, a heat exchange chamber 182, and an installation chamber 183 that are sequentially disposed in the vertical direction. Wherein, vertical direction is the direction of height between the top of casing and the bottom of casing. In this embodiment, the front panel 13 includes an upper panel 131, a middle panel 132, and a lower panel 133, where the upper panel 131, the middle panel 132, and the lower panel 133 correspond to the air supply chamber 181, the heat exchange chamber 182, and the installation chamber 183, respectively, and the upper panel 131, the middle panel 132, or the lower panel 133 are assembled and disassembled to facilitate maintenance and repair operations of each component in the casing 1.

With continued reference to fig. 7 and 8, the heat exchanger 4 is located within the heat exchange chamber 182 and the compressor 2 is located within the mounting chamber 183. The shell air inlet 11 is formed in the cavity wall of the heat exchange cavity 182 and is communicated with the heat exchange cavity 182, and the shell air outlet 12 is communicated with the air supply cavity 181 through the fan 5. When the air flow separates out the condensate water around the evaporator 41 in the heat exchange cavity 182, the condensate water adheres to the surface of the evaporator 41 and other components and falls into the water receiving tray 3 under the action of gravity, the water receiving tray 3 receives the condensate water, and the water receiving tray 3 is connected with a drain pipe, and the condensate water accumulated in the water receiving tray 3 is discharged from the drain pipe, so that the condensate water in the heat exchange cavity 182 is received by the water receiving tray 3 and cannot directly fall into the installation cavity 183, the probability that the condensate water enters the installation cavity 183 is reduced, and the safe operation of the compressor 2 in the installation cavity 183 is ensured.

The centrifugal wind wheel operates, under the driving of the centrifugal wind wheel, air outside the shell 1 enters the heat exchange cavity 182 through the shell air inlet 11, the air entering the heat exchange cavity 182 through the shell air inlet 11 exchanges heat with the evaporator 41, the air temperature is reduced, the moisture in the air is condensed into condensed water to be separated from the air, and the air is cooled and dried. The air after heat exchange with the evaporator 41 flows to the condenser 42 to exchange heat with the condenser 42, the air after cooling and drying absorbs heat and heats up, and the air after heating flows into the fan 5 through the fan air inlet 52 and then flows out of the shell from the fan air outlet 53 and the shell air outlet 12. The air may be warmed to a temperature before cooling or to other temperatures, and by way of cooling, dehumidifying and warming, the dehumidifier 100 may dry the air and leave the air at a suitable temperature.

Specifically, the dehumidifier 100 operates on the following principle: when the dehumidifier 100 is in dehumidification operation, high-temperature and high-pressure refrigerant gas discharged from the compressor 2 enters the condenser 42, the refrigerant is condensed in the condenser 42, heat released by the refrigerant in the condenser 42 is taken away by air flow flowing through the condenser 42, the refrigerant is changed into medium-temperature and high-pressure refrigerant liquid from high-temperature and high-pressure gas in the condenser 42, the refrigerant liquid can be changed into low-temperature and low-pressure gas-liquid mixed refrigerant after being throttled and depressurized by the throttling device, and then enters the evaporator 41, and the refrigerant is evaporated in the evaporator 41.

The air outside the dehumidifier 100 enters the periphery of the evaporator 41 inside the dehumidifier 100, the refrigerant absorbs heat of the air flowing through the periphery of the evaporator 41 in the evaporation process of the evaporator 41, so that the temperature of the air flowing through the evaporator 41 is reduced, the dew point temperature of the air flowing through the surface of the evaporator 41 is also reduced, water vapor in the air is condensed into dew to be separated out from the air, the effect of reducing the relative humidity of the air flowing through the surface of the evaporator 41 is achieved, and the dehumidification effect is achieved. The refrigerant, which has been evaporated in the evaporator 41 to become low-temperature low-pressure gas, is again compressed, and the low-temperature low-pressure gas refrigerant is compressed by the compressor 2 and then discharged into the condenser 42, whereby a further refrigeration cycle is performed.

Referring to fig. 2 and 6, the compressor 2 is mounted on the base 16, and supports the casing 1 and the compressor 2. In some embodiments, referring to fig. 2, the base 16 is a rectangular plate placed horizontally, the rollers 161 are arranged below the base 16, four rollers 161 are respectively fixed on four corners of the lower end surface of the base 16, the base 161 is suitable for placing the compressor 2, and the rollers 16111 arranged below the base 16 are convenient to move. When the dehumidifier 100 needs to be moved, a person only needs to push the dehumidifier 100 to move the dehumidifier 100 through the roller 161, the dehumidifier 100 does not need to be moved, and large sliding friction force at the bottom of the dehumidifier 100 does not need to be overcome, so that the dehumidifier 100 is convenient for the person to move.

Referring to fig. 5 to 13, the dehumidifier 100 further includes an electric control box 6, the electric control box 6 is disposed in the air supply cavity 181 and located between the fan 5 and the heat exchanger 4, an electric control board 63 is installed in the electric control box 6, a plurality of heating components are installed on the electric control board 63, and the electric control board 63 is at least electrically connected with the compressor 2 and the fan 5 to control the operation thereof to realize the predetermined function of the dehumidifier 100. In this embodiment, the heating components include, but are not limited to, PFC (power factor correction module) in the frequency conversion module, IPM (intelligent power module), and semiconductor heating components related to a rectifier bridge, a large electrolytic capacitor, and the like.

In order to realize heat dissipation of the heat generating components, the dehumidifier 100 further includes a radiator 7, and the radiator 7 contacts with the heat generating components to realize heat dissipation of the heat generating components. In order to improve the heat radiation effect of the radiator 7, referring to fig. 9 to 11, the heat radiation fins 71 of the radiator 7 are provided between the condenser 42 and the evaporator 41 and on the air outlet side of the evaporator 41.

Specifically, a gap is formed between the evaporator 41 and the condenser 42, the heat dissipation fins 71 are located in the gap, under the operation of the fan 5, air outside the casing enters the casing 1 through the casing air inlet 11, the air exchanges heat with the evaporator 41 and then is cooled and dehumidified into low-temperature dry air, the low-temperature dry air takes away heat on the heat dissipation fins 71 after flowing through the heat dissipation fins 71, heat dissipation of heating components is achieved, the air flow flowing through the heat dissipation fins 71 exchanges heat with the condenser 42 and is warmed to form warmed dry air, the warmed dry air enters the air supply cavity 181, and finally flows out from the casing air outlet. FIG. 12 is a schematic diagram of the airflow direction within the enclosure, with arrows along the dashed lines to indicate the direction of airflow.

The dehumidifier provided by the utility model is of a frequency conversion integrated type, and the electric control box 6 is arranged in the air supply cavity 181, and the radiating fins 71 for radiating heat are arranged between the evaporator 41 and the condenser 42, namely, on the air outlet side of the evaporator 41, so that the air which is cooled and dehumidified by the evaporator 41 and dried at low temperature is led to take away heat through the radiating fins 71 of the radiator 7, thereby radiating high-temperature devices such as heating components in a frequency conversion module, effectively improving the radiating effect, solving the problem of temperature rise of frequency conversion driving, and greatly prolonging the service life and the operation reliability of the heating components.

Referring to fig. 20, the heat sink 7 includes a base plate 74 and a plurality of heat dissipating fins 71, the base plate 74 contacts with the heat generating component, the plurality of heat dissipating fins 71 are parallel to each other and are arranged on the base plate 74 at intervals, an air flow channel 72 is formed between adjacent heat dissipating fins 71, and the extending direction of the gap is parallel to the heat dissipating fins; the arrangement ensures that the air guiding direction of the radiating fins 71 is consistent with the airflow flowing direction of the gaps, and the airflow flowing in the gaps can better take away the heat on the radiating fins 71, thereby being beneficial to improving the radiating effect.

Further, with continued reference to fig. 20, the heat dissipating fin 71 is provided with at least one notch 73, and the notch 73 is formed by recessing the free end of the heat dissipating fin 71 toward the base 74. By providing the notch 73, the heat radiating fin 71 is prevented from being excessively long, and wind resistance is effectively reduced. In this embodiment, each heat dissipation fin 71 is provided with a notch 73, the notch 73 is located in the middle of the heat dissipation fin 71, and the notches 73 between adjacent heat dissipation fins 71 are communicated to form a channel perpendicular to the heat dissipation fins 71.

Referring to fig. 6, the electronic control box 6 is mounted to the shielding plate 44 and is located between the heat exchanger 4 and the blower 5. Specifically, the bottom wall of the electronic control box 6 is provided with a first opening, the shielding plate 44 is provided with a second opening corresponding to the first opening, and the heat dissipation fins 71 sequentially penetrate through the first opening and the second opening and extend into the gap. This setting can utilize the low temperature dry air circulation after the heat transfer of evaporimeter 41 to take away the heat on the fin 71 to a great extent to the realization is to the heat dissipation of heating element, compares in prior art, and the low temperature dry air temperature after the heat transfer of evaporimeter 41 compares in the outside air current temperature of casing, the interior air current temperature of air supply chamber 181, and the air current temperature of condenser 42 air-out side is low, makes the radiating effect of radiator 7 obviously increase. In this embodiment, the electronic control box 6 is mounted to the shielding plate 44 by a support bar and a fastener.

Referring to fig. 6 and 13, in order to realize the air flow between the heat exchange chamber 182 and the air supply chamber 181, a third port 184 is provided between the air supply chamber 181 and the heat exchange chamber 182, and the third port 184 allows the heated drying air after heat exchange by the condenser 42 to enter the air supply chamber 181. In order to realize the heat dissipation of the electric control board 63 and the heater inside the electric control box 6, the electric control box 6 is provided with an air inlet 64 and an air outlet 65, and the air inlet 64 is arranged on the side wall of the electric control box 6 close to the third port 184. In this embodiment, the third port 184 is disposed near the back plate.

Specifically speaking, through set up air inlet 64 and gas outlet 65 on automatically controlled box 6 to air inlet 64 is close to third port 184 setting, under fan 5's operation, the dry air of intensification gets into automatically controlled box 6 from air inlet 64, flows through and generates heat components and parts back by gas outlet 65 outflow automatically controlled box 6, utilizes the air convection in the air supply chamber 181, realizes the inside automatically controlled board 63 of automatically controlled box 6 and the heat dissipation of components and parts that generate heat, can make the inside automatically controlled board 63 of automatically controlled box 6 and each temperature reduction of components and parts that generate heat, realizes the function to the protection of components and parts that generate heat, has improved the life of each components and parts that generate heat.

Further, the length direction of the electric control box 6 is parallel to the axial direction of the rotating shaft of the centrifugal wind wheel, and meanwhile, the air outlet 65 is formed in two side walls of the electric control box 6 which are oppositely arranged in the length direction; wherein, the electric control box 6 and the fan 5 are arranged at intervals along the vertical direction. Through set up gas outlet 65 at the length direction both ends of automatically controlled box 6 for automatically controlled box 6 inside forms two heat dissipation channels, and then makes the inside air current of automatically controlled box 6 flow out fast.

Specifically, the air flow entering the air supply cavity 181 enters the electric control box 6 through the air inlet 64 near the third port 184 under the action of the fan 5, flows through the heating components in the electric control box 6, and flows out through the air outlets at two ends of the electric control box 6. Meanwhile, the two air outlets 65 respectively correspond to the two air inlets of the fan 5, and air flows flowing out of the air outlets 65 are quickly sucked into the air inlets of the two fans, so that the circulation speed is high, and the heat dissipation effect is good. Wherein the air inlet 64 includes a plurality of grill holes; and/or the air outlet 65 includes a plurality of grid holes. Reference is made to fig. 13, 19, wherein the arrows with dashed lines are used to characterize the flow direction of the air flow.

In this embodiment, the air inlet 64 and the air outlet 65 each include a plurality of grid holes, so that the plurality of grid holes ensure that the air inlet 64 and the air outlet 65 have larger air inlet areas, and each grid hole is smaller relative to the whole air inlet 64 and air outlet 65, so that the grid holes can isolate insects and larger impurities. Wherein the grid holes may be bar-shaped holes.

Referring to fig. 16 to 19, the electronic control box 6 includes a box body 61 and a receiving groove 62, the receiving groove 62 is communicated with one end of the box body in the length direction, the bottom wall of the receiving groove 62 is formed by extending the bottom wall of the box body 61, an electronic control board 63 is installed in the box body 61, a first end of the electronic control board 63 extends into the receiving groove 62 to form a variable frequency driving board 631, the semiconductor heating element is installed on the variable frequency driving board 631 to form a variable frequency module, and the radiator 7 is arranged corresponding to the position of the variable frequency driving board 631.

In this embodiment, the radiator 7 mainly radiates heat to the frequency conversion module, so as to avoid the frequency conversion module from generating a larger temperature rise, thereby affecting the reliability and service life of the whole machine. Specifically, the low-temperature dry air after heat exchange by the evaporator 41 flows through the radiating fins 71 to take away the heat generated by the frequency conversion module, so that the frequency conversion module is effectively radiated, the radiating problem of the frequency conversion module is solved, and the service life and the operation reliability of the frequency conversion module are prolonged.

Specifically, referring to fig. 17, the box 61 includes a bottom cover 611 and a top cover 612, where the top cover 612 covers the top of the bottom cover 611 to close the box 61, so as to facilitate disassembly and assembly. When the electric control box 6 needs to be repaired, the top cover is disassembled to enable the electric control box 6 to be opened, and repair personnel can repair electric control components in the electric control box 6 conveniently.

To facilitate maintenance of the electronic control box 6, the electronic control box 6 is disposed close to the front panel 13 with respect to the blower 5. Specifically, the electric control box 6 is arranged at the front side of the fan 5, when a user needs to repair the electric control box 6, the front panel 13 can be directly opened to access the electric control box 6, and the fan 5 is prevented from blocking the repair of the electric control box 6.

In the dehumidifier provided by the utility model, the electric control box 6 is placed in the air supply cavity 181, and the radiating fins 71 for heat radiation are arranged between the evaporator 41 and the condenser 42, so that the air which is cooled and dehumidified by the evaporator 41 and dried at low temperature is taken away by the radiating fins 71 of the radiator 7, thereby radiating high-temperature devices such as semiconductor heating devices, and the like, having very good radiating effect, greatly prolonging the service life and the operation reliability of the heating devices, solving the temperature rise problem of variable frequency drive, and having simpler temperature rise control strategy and easy realization. Meanwhile, by arranging the air inlet 64 and the air outlet 65 on the electric control box 6, the electric control plate 63 and the heating components inside the electric control box 6 can radiate heat through circulating air in the air supply cavity 181. Compared with the prior art, the temperature rise of the electric control box 6 can be effectively controlled, and the influence on the reliability and the service life of the whole dehumidifier 100 can be avoided.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

The foregoing description, for purposes of explanation, has been presented in conjunction with specific embodiments. However, the illustrative discussions above are not intended to be exhaustive or to limit the embodiments to the precise forms disclosed above. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles and the practical application, to thereby enable others skilled in the art to best utilize the embodiments and various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A dehumidifier, comprising:

the fan is arranged in the air supply cavity;

the electric control box is arranged in the air supply cavity, an electric control plate is arranged in the electric control box, and heating components are arranged on the electric control plate;

the air outside the shell enters the accommodating cavity through the shell air inlet under the operation of the fan, flows through the radiating fins after exchanging heat with the evaporator, exchanges heat with the condenser and enters the air supply cavity to flow out from the shell air outlet.

2. The dehumidifier of claim 1, wherein the radiator comprises a base plate and a plurality of radiating fins, the base plate is in contact with the heating element, the plurality of radiating fins are parallel to each other and are arranged on the base plate at intervals, an air flow channel is formed between every two adjacent radiating fins, and the extending direction of the gap is parallel to the radiating fins.

3. The dehumidifier of claim 2, wherein the fin is provided with at least one slot, the slot being formed by a recess in a free end of the fin toward the base plate.

4. The dehumidifier of claim 1, further comprising a shield disposed within the housing, the shield being coupled to the housing to separate the plenum from the containment chamber, the top of the evaporator and the top of the condenser being in contact with the shield, the electrically controlled cartridge being mounted to the shield.

5. The dehumidifier of claim 4, wherein the bottom wall of the electrical control box is provided with a first opening, the shielding plate is provided with a second opening corresponding to the first opening, and the radiating fins sequentially penetrate through the first opening and the second opening and extend into the gap.

6. The dehumidifier of claim 1, wherein a third port is provided between the air supply chamber and the accommodating chamber, the third port is used for allowing the air to enter the air supply chamber, the electric control box is provided with an air inlet and an air outlet, the air inlet is arranged on a side wall of the electric control box, which is close to the third port, and under the operation of the fan, the air enters the electric control box from the air inlet, flows through the heating element and then flows out of the electric control box from the air outlet.

7. The dehumidifier of claim 6, wherein the length direction of the electric control box is parallel to the axial direction of the rotating shaft of the centrifugal wind wheel of the fan, the air outlet is formed on two side walls of the electric control box which are oppositely arranged in the length direction of the electric control box, the electric control box and the fan are arranged at intervals along a vertical direction, and the vertical direction is a height direction between the top end of the shell and the bottom end of the shell.

8. Dehumidifier according to claim 6 or 7, wherein the air inlet comprises a plurality of grille apertures; and/or the air outlet comprises a plurality of grid holes.

9. The dehumidifier of claim 7, wherein the electrical control box comprises a box body and a containing groove, the containing groove is communicated with one end of the box body in the length direction of the box body, the bottom wall of the containing groove is formed by extending the bottom wall of the box body, the first end of the electrical control plate extends into the containing groove to form a variable frequency driving plate, and the radiator is arranged corresponding to the position of the variable frequency driving plate.

10. The dehumidifier of claim 1, further comprising a water pan disposed in the receiving chamber, the water pan separating the receiving chamber into a heat exchange chamber and a mounting chamber, the heat exchange chamber being located between the air supply chamber and the mounting chamber, the evaporator and the bottom end of the condenser being mounted on the water pan, the mounting chamber being provided with a compressor.