Dehumidifier

Abstract

The utility model provides a dehumidifier which comprises a machine shell, a heat exchanger and an axial flow fan. The heat exchanger is vertically arranged, and the projection of the heat exchanger on the horizontal plane is circular or major arc-shaped; the heat exchanger and the air outlet are coaxially arranged; the axial flow fan is arranged in the containing space and located on the lower side of the air outlet. And the axial flow fan and the heat exchanger are coaxially arranged. The heat exchanger is circular or major arc-shaped, the heat exchanger and the axial flow fan are coaxially arranged, and the distance between the heat exchanger and the axial flow fan is uniform, so that airflow flow distribution is uniform, heat exchange at each position of the heat exchanger is uniform, the heat exchange efficiency is further improved, and the dehumidification efficiency is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air treatment technical field, in particular to a dehumidifier. BACKGROUND

[0002] With the improvement of people's living standards, people's requirements for indoor living environment are also higher and higher. As the equipment for adjusting air humidity, dehumidifiers are gradually widely used in families and commercial places. However, the existing dehumidifiers have certain defects in structural design, so that the airflow flow is not smooth, resulting in low dehumidification efficiency. SUMMARY

[0003] In view of the above problems, the utility model is provided to provide a dehumidifier which can overcome the above problems or at least partially solve the above problems, and improve the dehumidification efficiency.

[0004] Specifically, the utility model provides a dehumidifier, which comprises:

[0005] A shell is defined with a containing space inside, and an air inlet and an air outlet communicating with the containing space are formed on the shell; the first air inlet is arranged on the peripheral wall of the shell; the air outlet is arranged on the top wall of the shell;

[0006] A heat exchanger is arranged in the containing space, and the heat exchanger is configured to cool air at least; the heat exchanger is arranged vertically, and the projection of the heat exchanger on the horizontal plane is circular or arcuate; the heat exchanger is coaxially arranged with the air outlet;

[0007] An axial flow fan is arranged in the containing space and is located below the air outlet; the axial flow fan is coaxially arranged with the heat exchanger; the axial flow fan is configured to suck air from below and blow upward, so as to make air enter the containing space from the air inlet, and then flow out from the air outlet after heat exchange with the heat exchanger.

[0008] Optionally, the dehumidifier further comprises:

[0009] A support assembly is arranged in the shell, and the support assembly has a spacing part, and a water receiving cavity is arranged on the spacing part; the heat exchanger is located above the water receiving cavity;

[0010] A drawer type water tank is arranged in the containing space and is located below the spacing part, and is configured to receive water from the water receiving cavity.

[0011] Optionally, the air inlet is three, respectively, the first air inlet, the second air inlet, the third air inlet; the third air inlet is arranged on the front wall of the cabinet; the first air inlet and the second air inlet are arranged on the two side walls of the cabinet respectively; the notch of the heat exchanger faces the back or the side back.

[0012] Optionally, the dehumidifier further comprises a compressor, the compressor is arranged in the accommodation space, and the compressor is arranged on the upper side of the partition; the compressor is further arranged in the heat exchanger, or the compressor is further arranged at the notch of the heat exchanger.

[0013] Optionally, the dehumidifier further comprises a compressor, the compressor is arranged in the accommodation space, and the compressor is arranged on the upper side of the partition; the compressor is further arranged in the heat exchanger, or the compressor is further arranged at the notch of the heat exchanger.

[0014] Optionally, the partition is provided with a communication area, the communication area is located on the upper side of the drawer type water tank, and the communication area is configured to enable air at the drawer type water tank to enter the upper side of the partition through the communication area.

[0015] Optionally, the dehumidifier further comprises a wind guide ring, the wind guide ring is columnar, is arranged outside the axial flow fan, and the heat exchanger is arranged outside the wind guide ring; the lower end of the wind guide ring is located in the space surrounded by the heat exchanger.

[0016] The ratio between the distance between the outer wall of the wind guide ring and the inner surface of the heat exchanger and the outer diameter of the wind guide ring is less than or equal to 1 / 20.

[0017] The ratio between the distance between the plane where the lower end of the wind guide ring is located and the lower end surface of the heat exchanger and the outer diameter of the wind guide ring is 1 / 2 to 13 / 10.

[0018] Optionally, the axial flow fan comprises:

[0019] A motor cover cylinder is defined in the motor cavity.

[0020] Fan blades are arranged on the peripheral wall of the motor cover cylinder; the lower end of the wind guide ring is located on the lower side of the fan blades, and the upper end of the wind guide ring is located on the upper side of the fan blades.

[0021] An outer rotor driving motor is arranged in the motor cavity; an air outlet grille is arranged at the air outlet, and a stator part of the outer rotor driving motor is mounted on the air outlet grille.

[0022] The ratio between the minimum distance from the fan blade to the inner wall of the air guide ring and the diameter of the axial flow fan is 3 / 200 to 1 / 20;

[0023] The upper end of the air guide ring is connected to the air outlet, and the ratio between the height of the air guide ring and the diameter of the axial flow fan is 1 / 5 to 2 / 5.

[0024] Optionally, the air outlet grille includes:

[0025] A receiving cylinder with its opening facing upwards is provided, and a computer board is disposed inside the receiving cylinder; the computer board is electrically connected to the external rotor drive motor; the receiving cylinder is located directly above the external rotor drive motor; the stator is mounted on the receiving cylinder;

[0026] A display input device is disposed at the upper opening of the receiving cylinder to cover the receiving cylinder, and is configured to display and receive input.

[0027] A ventilation grille is provided around the display input device to allow airflow.

[0028] Optionally, along the thickness direction of the heat exchanger, the heat exchanger includes a plurality of heat exchange layers arranged sequentially along the thickness direction of the heat exchanger; the innermost heat exchange layer is configured to heat the air, and the outermost heat exchange layer is configured to cool the air; the thickness of each heat exchange layer is 10 mm to 15 mm.

[0029] In this dehumidifier, the casing has an air inlet on its peripheral wall and an air outlet on its top wall. Utilizing an axial flow fan, the dehumidifier employs a peripheral air intake and top air outlet design. The axial flow fan's airflow drive facilitates smooth airflow, improving the heat exchanger's efficiency. Furthermore, the heat exchanger is circular or slightly curved, coaxially positioned with the axial flow fan, and the uniform distance between them ensures even airflow distribution and heat exchange throughout the heat exchanger, further enhancing heat exchange efficiency and thus dehumidification efficiency. Simultaneously, the axial flow fan drives air circulation, resulting in high airflow, low power consumption, and low noise, contributing to energy and noise reduction while improving dehumidification efficiency.

[0030] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0031] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0032] Figure 1 This is a schematic structural diagram of a dehumidifier according to an embodiment of the present invention;

[0033] Figure 2 yes Figure 1 A schematic structural diagram of the dehumidifier from another perspective;

[0034] Figure 3 yes Figure 1 A schematic structural diagram of the dehumidifier from another perspective;

[0035] Figure 4 yes Figure 1 A schematic structural diagram of the internal structure of the dehumidifier shown.

[0036] Figure 5 yes Figure 1 A schematic structural diagram of another internal structure of the dehumidifier shown;

[0037] Figure 6 yes Figure 1 A schematic structural diagram of another internal structure of the dehumidifier shown;

[0038] Figure 7 yes Figure 1 A schematic structural diagram of the axial flow fan and heat exchanger in the dehumidifier shown;

[0039] Figure 8 yes Figure 1 The diagram shows a schematic structural diagram of the drawer-type water tank and the partition section in the dehumidifier. Detailed Implementation

[0040] The following reference Figures 1 to 8 This description refers to a dehumidifier according to an embodiment of the present invention. In this description, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0041] Unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," and "couple" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] Figure 1 This is a schematic structural diagram of a dehumidifier according to an embodiment of the present invention; as shown below. Figure 1 As shown, and refer to Figures 2 to 8 This utility model provides a dehumidifier for dehumidifying air in the environment. The dehumidifier includes a casing 100, a heat exchanger 200, and an axial flow fan.

[0045] A housing 100 defines an accommodating space, and the housing 100 has at least one air inlet and one air outlet 104 communicating with the accommodating space. The air inlet is located on the peripheral wall of the housing. The air outlet 104 is located on the top wall of the housing 100. A heat exchanger 200 is disposed within the accommodating space. The heat exchanger 200 is configured to at least cool the air. For example, the heat exchanger 200 is configured to first cool the air as it flows through, condense the moisture in the air, and then heat the cooled air, minimizing the temperature difference between the air before entering the housing 100 and after exiting the housing 100. In some alternative embodiments, the heat exchanger 200 is only used to cool the air as it flows through. In particular, such as Figures 4 to 6 As shown, the heat exchanger 200 is vertically arranged, and its projection on the horizontal plane is circular or arc-shaped. The heat exchanger 200 is coaxially arranged with the air outlet.

[0046] An axial flow fan 300 is disposed within the accommodating space and configured to draw air into the accommodating space from the air inlet, exchange heat with the heat exchanger 200, and then exit from the air outlet. The axial flow fan 300 has fan blades 310. The axial flow fan 300 is located below the air outlet and is configured to draw in air from below and blow it upward. The axial flow fan 300 is coaxially arranged with the heat exchanger 200.

[0047] When the dehumidifier of this utility model embodiment is working, the axial flow fan 300 works, and the airflow enters the casing 100 from the side air inlet. After exchanging heat with the heat exchanger 200, the airflow is cooled and the moisture is condensed to complete the dehumidification. The airflow can continue to be heated by the heat exchanger 200 and then flows out from the upper air outlet.

[0048] In this dehumidifier, the casing 100 has an air inlet on its peripheral wall and an air outlet on its top wall. Furthermore, it employs an axial flow fan 300, allowing the dehumidifier to utilize a peripheral air inlet and top air outlet design. The axial flow fan's airflow drive facilitates smooth airflow, improving the heat exchanger's efficiency. Simultaneously, the axial flow fan 300 drives air circulation, resulting in a large air volume, low power consumption, and low noise, contributing to energy and noise reduction while enhancing dehumidification efficiency.

[0049] Moreover, the heat exchanger 200 is circular or arc-shaped, and the heat exchanger 200 and the axial flow fan 300 are coaxially arranged. The distance between the heat exchanger 200 and the axial flow fan 300 is uniform, which makes the airflow distribution uniform and the heat exchange is uniform at all positions of the heat exchanger 200, thereby improving the heat exchange efficiency and thus improving the dehumidification efficiency.

[0050] In some embodiments of this utility model, such as Figures 1 to 3As shown, there are three air inlets: a first air inlet 101, a second air inlet 102, and a third air inlet 103, which connect to the accommodating space. The first air inlet 101, the second air inlet 102, and the third air inlet 103 are respectively located on three different peripheral walls of the housing 100. For example, the peripheral walls include a front wall, a rear wall, and side walls. The third air inlet 103 is located on the front wall of the housing 100, and the first air inlet 101 and the second air inlet 102 are respectively located on two side walls of the housing 100. The multiple air inlets located on the front, rear, and / or side walls of the housing 100 increase the air intake area, allowing as much airflow as possible to enter the accommodating space. Furthermore, the use of peripheral air intake and top air outlet facilitates smooth airflow. Furthermore, multiple air inlets are located on different peripheral side walls of the casing 100, which facilitates the placement of the dehumidifier. In some confined spaces, at least two peripheral side walls can be used for air intake, and the air outlet is upward, which is beneficial for the dehumidifier to be used in various occasions, making the dehumidifier highly adaptable. In some other embodiments of this utility model, the casing is cylindrical, and the first air inlet 101, the third air inlet 103, and the second air inlet 102 are connected along the circumferential direction of the casing 100, occupying a length of more than 2 / 3 of the circumference of the casing's peripheral wall.

[0051] In some embodiments of this utility model, the notch of the heat exchanger 200 faces directly to the rear or to the rear side. This arrangement minimizes the amount of airflow passing through the notch and maximizes the flow of air through the heat exchanger, ensuring heat exchange efficiency and thus improving dehumidification efficiency.

[0052] In some embodiments of this utility model, such as Figures 4 to 8 As shown, the dehumidifier also includes a compressor 400, a support assembly 500, and a drawer-type water tank 600. The support assembly 500 is disposed within the housing 100 and has a spacer portion 510 with a water receiving chamber 511. A heat exchanger 200 is located above the water receiving chamber 511, and condensate flows along the heat exchanger into the water receiving chamber 511 and is collected there. The drawer-type water tank 600 is disposed within the receiving space and below the spacer portion 510, configured to receive water from the water receiving chamber 511. A perforation is provided at the bottom of the water receiving chamber 511, through which condensate flows into the drawer-type water tank 600. In some alternative embodiments, water is introduced into the drawer-type water tank 600 from the bottom of the water receiving chamber 511 via a water guide pipe.

[0053] In some embodiments of this invention, the compressor 400 is disposed within the accommodating space, with a portion of the compressor 400 located below the partition 510 and a portion located above the partition 510. The axial flow fan 300 is located above the partition 510. This arrangement allows for a compact dehumidifier structure. Preferably, the portion of the compressor 400 located above the partition 510 is situated within the heat exchanger 200. In some alternative embodiments of this invention, the portion of the compressor 400 located above the partition 510 is situated at the notch 240 of the heat exchanger 200, further maximizing space utilization and further enhancing the compactness of the dehumidifier structure.

[0054] In some embodiments of this utility model, such as Figures 4 to 6 As shown, the compressor 400 is disposed within the accommodating space and is located above the partition 510. The compressor 400 is also located within the heat exchanger 200. In some alternative embodiments of this invention, the compressor 400 is located at the notch 240 of the heat exchanger 200, which can further make full use of the space and make the dehumidifier structure more compact.

[0055] In some embodiments of this utility model, such as Figures 1 to 3 As shown, the first air inlet 101, the second air inlet 102, and the third air inlet 103 are all located on the upper side of the spacer 510. The first air inlet 101, the third air inlet 103, and the second air inlet 102 are connected along the circumferential direction of the housing 100, further expanding the air inlet area. In some other embodiments of this utility model, the first air inlet 101 is formed by multiple air holes, the second air inlet 102 is formed by multiple air holes, and the third air inlet 103 is formed by multiple air holes. All the air holes are evenly distributed on the circumferential sidewall of the housing 100 along the circumferential direction of the housing 100.

[0056] In some embodiments of this utility model, such as Figure 7As shown, along the thickness direction of the heat exchanger 200, the heat exchanger 200 includes multiple heat exchange layers, which are sequentially arranged along the thickness direction of the heat exchanger 200. The multiple heat exchange layers may include at least one first heat exchange layer 210 and at least one second heat exchange layer 220. The second heat exchange layer 220 is disposed inside the first heat exchange layer 210 and serves as a condensation section configured to heat the air. The first heat exchange layer 210 serves as an evaporation section configured to cool the air. In some embodiments of this invention, the multiple heat exchange layers may further include at least one third heat exchange layer 230, which is disposed between the first heat exchange layer 210 and the second heat exchange layer 220. The upper part of the third heat exchange layer 230 is configured to heat the air, and the lower part is configured to cool the air; or, the lower part of the third heat exchange layer is configured to heat the air, and the upper part is configured to cool the air. Each pair of adjacent heat exchange layers may be in contact to reduce volume, or each pair of adjacent heat exchange layers may be spaced apart. This utility model, by adjusting the shape of the heat exchanger 200, not only reduces the size of the machine, making it easier for users to place, use, and store, but also allows some of the condensate to be dripped directly onto part of the condenser to enhance heat exchange and achieve energy saving. Since the water is dripped at the rear end of the condenser, the condenser temperature has already decreased, avoiding the risk of further evaporation of the water. In addition, there is another condenser behind it to prevent water from being blown out to the air outlet 104.

[0057] In some embodiments of this utility model, such as Figure 8 As shown, a connecting area 513 is provided on the partition 510. The connecting area 513 is located above the drawer-type water tank 600. The connecting area 513 is configured so that air from the drawer-type water tank 600 enters the upper part of the partition 510 through the connecting area 513. When the axial flow fan 300 is working, the gas below the partition 510, i.e., the gas near the drawer-type water tank 600, flows upward through the connecting area 513 under the drive of the axial flow fan 300. The cooling capacity of the condensate in the drawer-type water tank 600 is carried away by the airflow and continues to exchange heat with the air after passing through the condenser to reduce the outlet air temperature. When part of the compressor 400 is located below the partition 510, it also helps to carry away the heat generated by the nearby compressor 400 and dissipate heat from the compressor 400. In other words, by setting up the connecting area 513, the axial flow fan 300 installed above forms a certain ventilation circulation with the drawer-type water tank, allowing the cooling capacity of the condensate in the water tank to circulate upwards. This cooling capacity can be used to dissipate heat from the side compressor 400, and can also continue to exchange heat with the air after passing through the condenser, thereby reducing the outlet air temperature. Multiple connecting holes are provided in the connecting area 513, which is located below the space enclosed by the heat exchanger 200.

[0058] In some embodiments of this utility model, such as Figure 8As shown, the drawer-type water tank 600 has a water tank cover at its top opening to prevent condensate from overflowing as much as possible, further preventing condensate from affecting the compressor 400 and other components, ensuring electrical safety, and also preventing condensate from corroding structural parts. The water tank cover has perforations that allow condensate to enter the drawer-type water tank 600, so that water in the water receiving chamber 511 can enter the drawer-type water tank 600 through the perforations.

[0059] In some embodiments of this utility model, such as Figure 7 As shown, the dehumidifier also includes an air guide ring 800, which is cylindrical and located on the outside of the fan blades 310. The heat exchanger 200 is located on the outside of the air guide ring 800. By setting the air guide ring, the airflow is further guided, improving the smoothness of the airflow. In some other embodiments of this utility model, the air guide ring 800 may also have other structures, such as gradually narrowing, intermittently expanding, or first gradually narrowing and then gradually expanding along the direction of airflow.

[0060] In some embodiments of this utility model, such as Figure 7 As shown, the axial flow fan 300 also includes a motor housing and an external rotor drive motor 320. Fan blades 310 are disposed on the peripheral wall of the motor housing. A motor cavity is defined within the motor housing. The external rotor drive motor 320 is disposed within the motor cavity. An air outlet grille 900 is provided at the air outlet, and the stator of the external rotor drive motor 320 is mounted on the air outlet grille 900.

[0061] In some embodiments of this utility model, such as Figures 1 to 3 as well as Figure 7 As shown, the air outlet grille 900 includes a receiving cylinder 910, a display input device 920, and a ventilation grille 930. The opening of the receiving cylinder 910 faces upward, and a computer board is installed inside the receiving cylinder 910. The computer board is electrically connected to the external rotor drive motor 320. The receiving cylinder 910 is located directly above the external rotor drive motor 320. The stator is mounted on the receiving cylinder 910. The display input device 920 is located at the upper opening of the receiving cylinder 910 to cover the receiving cylinder 910, and is configured to display and receive input. The placement of the display input device 920 is advantageous for users to operate the dehumidifier, as the display is easily observed and convenient for user operation, ensuring user convenience and intuitiveness. Through a reasonable layout, the operation of the dehumidifier becomes simpler and more intuitive. Furthermore, the display control area is located directly above the center of the axial flow fan 300, where the airflow is relatively small, which can prevent the temperature of electrical components from rising due to the outlet air temperature. The ventilation grille 930 is located around the display section to allow airflow to pass through.

[0062] In some embodiments of this utility model, such as Figures 4 to 8As shown, the support assembly 500 also includes a first bracket 520 and a second bracket. The first bracket 520 is disposed within the housing 100, and the spacer portion 510 is disposed on the first bracket 520. Preferably, the spacer portion 510 and the first bracket 520 are integrally formed, which can improve the integration of components, reduce the overall structure of the dehumidifier, and facilitate production and assembly. The spacer portion 510 and the first bracket 520 are made of plastic and can be integrally formed by injection molding. The second bracket is disposed on the spacer portion 510; the top cover of the housing 100 is disposed on the second bracket. The heat exchanger 200 can be installed between the spacer portion 510 and the second bracket.

[0063] In some embodiments of this utility model, such as Figures 1 to 3 As shown, the housing also includes a first side plate 130, a second side plate 140, a third side plate 150, a first air inlet plate, a second air inlet plate, and a third air inlet plate. The first side plate 130 is disposed on one side of the first bracket. A first air inlet 101 is located above the first side plate 130. The second side plate 140 is disposed on the other side of the first bracket. A third air inlet 103 is located above the second side plate 140. The third side plate 150 forms the rear wall of the housing 100 and is disposed between the first side plate 130 and the second side plate 140. The first air inlet plate is disposed above the first side plate 130, and the first air inlet plate and the first side plate 130 form the side wall of the housing 100. The first air inlet 101 is disposed on the first air inlet plate. The second air inlet plate is disposed above the second side plate 140, and the second air inlet plate and the second side plate 140 form the side wall of the housing 100. A second air inlet 102 is disposed on the second air inlet plate. The third air inlet plate is positioned opposite the third side plate 150 and is located on the upper side of the front wall of the drawer-type water tank 600, forming the front wall of the housing 100. The front surface of the third air inlet plate and the front surface of the drawer-type water tank 600 can be on the same plane. The third air inlet 103 is provided on the third air inlet plate. Specifically, the first air inlet plate, the second air inlet plate, and the third air inlet plate are all provided with multiple air holes to form corresponding first air inlets 101, second air inlets 102, and third air inlets 103.

[0064] In some embodiments of this utility model, such as Figures 4 to 8 As shown, the spacer 510 and the first bracket 520 define a water tank installation space 540. The opening of the water tank installation space 540 faces away from the third side plate 150, i.e., the opening of the water tank installation space 540 faces forward. The drawer-type water tank 600 is disposed within the water tank installation space 540. The water tank installation space 540 helps prevent condensate from affecting other components, especially the compressor 400, ensuring electrical safety and preventing corrosion of structural parts by condensate. In some embodiments of this utility model, the opening of the water tank installation space 540 is located on the side wall of the housing 100.

[0065] In some embodiments of this utility model, such as Figure 7 As shown, the ratio of the distance between the outer wall of the air guide ring 800 and the inner surface of the heat exchanger 200 to the outer diameter of the air guide ring 800 is less than or equal to 1 / 20. When the axial flow fan 300 is working, the airflow enters the casing 100 from the side air inlet. After exchanging heat with the heat exchanger 200, the airflow is cooled, and the moisture is condensed, thus completing dehumidification. The airflow can continue to be heated by the heat exchanger, and then enters the air guide ring 800 and flows out from the upper air outlet. The positional relationship between the peripheral wall of the air guide ring 800 and the inner wall of the heat exchanger 200 allows the airflow to flow away quickly after entering the heat exchanger, reducing accumulation inside the heat exchanger, preventing turbulence, improving the heat exchange efficiency of the heat exchanger, and thus improving the dehumidification efficiency. In some preferred embodiments of this utility model, the distance between the outer wall of the air guide ring 800 and the inner surface of the heat exchanger 200 is within 10mm. Preferably, the ratio between the distance between the outer wall of the air guide ring 800 and the inner surface of the heat exchanger 200 and the outer diameter of the air guide ring 800 is greater than or equal to 1 / 40.

[0066] In some embodiments of this utility model, such as Figure 7 As shown, the lower end of the air guide ring 800 is located on the plane P2 above the lower end face P3 of the heat exchanger 200. The ratio of the distance L3 between the lower end of the air guide ring 800 and the lower end face P3 of the heat exchanger 200 to the outer diameter of the air guide ring 800 is 1 / 2 to 13 / 10. This positional relationship between the air guide ring 800 and the heat exchanger 200 allows for uniform and smooth airflow through the heat exchanger 200, improving its heat exchange efficiency and thus dehumidification efficiency. The lower end of the air guide ring 800 is located on the plane P2 below the upper end face of the heat exchanger 200; the distance between the lower end of the air guide ring 800 and the upper end face of the heat exchanger 200 is within 10mm. This arrangement allows for a compact dehumidifier structure without affecting the air intake and exhaust of the axial flow fan. Most of the space outside the air guide ring 800 can be fully utilized.

[0067] In some embodiments of this utility model, the ratio between the minimum distance from the fan blade 310 to the inner wall of the air guide ring 800 and the diameter of the axial fan 300 is 3 / 200 to 1 / 20, preferably 1 / 40. The minimum distance from the fan blade 310 to the inner wall of the air guide ring 800 refers to the distance between the closest point of the fan blade 310 to the inner wall of the air guide ring 800 and the inner wall of the air guide ring 800. Further, the diameter of the axial fan 300 can be 200mm, and the inner diameter of the air guide ring 800 can be 210mm. The special relationship between the axial fan 300 and the air guide ring 800 facilitates the inflow and outflow of air, ensuring smooth airflow, increasing the air volume, and thus improving dehumidification efficiency.

[0068] In some embodiments of this utility model, the thickness of each heat exchange layer is 10mm to 15mm. An appropriate heat exchange layer thickness can not only ensure the heat exchange effect, but also facilitate the rapid flow of air and avoid generating particularly large wind resistance.

[0069] In some embodiments of this utility model, such as Figure 7 As shown, the ratio of the height H of the guide ring 800 to the diameter of the axial fan 300 is 1 / 5 to 2 / 5. The guide ring 800 has sufficient height to allow for smoother airflow, higher velocity, and greater air volume generated by the axial fan 300. Furthermore, the lower end of the guide ring 800 is located below the fan blade 310, and the ratio of the minimum distance between the fan blade 310 and the plane P2 containing the lower end of the guide ring 800 to the height of the guide ring 800 is 1 / 10 to 1 / 4. The upper end of the guide ring 800 is located above the fan blade 310, and the ratio of the minimum distance between the fan blade 310 and the plane P1 containing the upper end of the guide ring 800 to the height of the guide ring 800 is 1 / 10 to 1 / 4. The fan blade 310 being positioned within the guide ring 800 reduces airflow turbulence and ensures smooth airflow. The minimum distance from the fan blade 310 to the plane P2 where the lower end of the air guide ring 800 is located refers to the distance between the nearest point of the fan blade 310 to the plane P2 where the lower end of the air guide ring 800 is located and the plane P2 where the lower end of the air guide ring 800 is located. The minimum distance from the fan blade 310 to the plane P1 where the upper end of the air guide ring 800 is located refers to the distance between the nearest point of the fan blade 310 to the plane P1 where the upper end of the air guide ring 800 is located and the plane P1 where the upper end of the air guide ring 800 is located.

[0070] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A dehumidifier, characterized in that, include: A housing, wherein an accommodating space is defined within the housing, and an air inlet and an air outlet are provided on the housing to communicate with the accommodating space; the air inlet is located on the peripheral wall of the housing; and the air outlet is located on the top wall of the housing. A heat exchanger is disposed within the accommodating space, the heat exchanger being configured to at least cool air; The heat exchanger is vertically arranged, and its projection on the horizontal plane is circular or arc-shaped; the heat exchanger is coaxially arranged with the air outlet. An axial flow fan is disposed within the accommodating space and located below the air outlet; the axial flow fan is coaxially disposed with the heat exchanger; the axial flow fan is configured to draw in airflow from its lower side and blow it upward, so as to cause air to enter the accommodating space from the air inlet, exchange heat with the heat exchanger, and then flow out from the air outlet.

2. The dehumidifier according to claim 1, characterized in that, Also includes: A support assembly is disposed inside the housing, the support assembly having a spacer portion, and a water receiving cavity is provided on the spacer portion; The heat exchanger is located on the upper side of the water receiving chamber; A drawer-type water tank is disposed within the accommodating space and located below the partition, configured to receive water from the water receiving chamber.

3. The dehumidifier according to claim 2, characterized in that, There are three air inlets, namely a first air inlet, a second air inlet, and a third air inlet; the peripheral wall includes a front wall, a rear wall, and two oppositely arranged side walls; the third air inlet is disposed on the front wall; the first air inlet and the second air inlet are respectively disposed on the two side walls; The notch of the heat exchanger faces directly rearward or to the side rearward.

4. The dehumidifier according to claim 2, characterized in that, Also includes: The compressor is disposed within the accommodating space and above the partition; the compressor is also located within the heat exchanger, or the compressor is also located at the notch of the heat exchanger.

5. The dehumidifier according to claim 2, characterized in that, Also includes: The compressor is disposed within the accommodating space, with a portion of the compressor located below the partition and a portion located above the partition; the portion of the compressor located above the partition is located within the heat exchanger or at a notch in the heat exchanger.

6. The dehumidifier according to claim 2, characterized in that, The partition is provided with a connecting area, which is located on the upper side of the drawer-type water tank. The connecting area is configured such that air from the drawer-type water tank enters the upper side of the partition through the connecting area.

7. The dehumidifier according to claim 1, characterized in that, Also includes: An air guide ring is disposed on the outside of the axial flow fan, and the heat exchanger is located on the outside of the air guide ring; the lower end of the air guide ring is located within the space enclosed by the heat exchanger. The air guide ring is cylindrical, and the ratio between the distance between the outer wall of the air guide ring and the inner surface of the heat exchanger and the outer diameter of the air guide ring is less than or equal to 1 / 20. The plane at the lower end of the air guide ring is located above the lower end face of the heat exchanger, and the ratio between the distance between the plane at the lower end of the air guide ring and the lower end face of the heat exchanger and the outer diameter of the air guide ring is 1 / 2 to 13 / 10.

8. The dehumidifier according to claim 7, characterized in that, The axial flow fan includes: A motor housing, the motor housing defining a motor cavity; The fan blades are disposed on the peripheral wall of the motor housing; the lower end of the air guide ring is located below the fan blades, and the upper end of the air guide ring is located above the fan blades. An external rotor drive motor is disposed inside the motor cavity; an air outlet grille is provided at the air outlet, and the stator of the external rotor drive motor is mounted on the air outlet grille; The ratio between the minimum distance from the fan blade to the inner wall of the air guide ring and the diameter of the axial flow fan is 3 / 200 to 1 / 20; The upper end of the air guide ring is connected to the air outlet, and the ratio between the height of the air guide ring and the diameter of the axial flow fan is 1 / 5 to 2 / 5.

9. The dehumidifier according to claim 8, characterized in that, The air outlet grille includes: A receiving cylinder with its opening facing upwards is provided, and a computer board is disposed inside the receiving cylinder; the computer board is electrically connected to the external rotor drive motor; the receiving cylinder is located directly above the external rotor drive motor; the stator is mounted on the receiving cylinder; A display input device is disposed at the upper opening of the receiving cylinder to cover the receiving cylinder, and is configured to display and receive input. A ventilation grille is provided around the display input device to allow airflow.

10. The dehumidifier according to claim 7, characterized in that, Along the thickness direction of the heat exchanger, the heat exchanger includes a plurality of heat exchange layers arranged sequentially along the thickness direction of the heat exchanger; the innermost heat exchange layer is configured to heat the air, and the outermost heat exchange layer is configured to cool the air; The thickness of each heat exchange layer is 10 mm to 15 mm.

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