Rotary dehumidifier

Abstract

The rotary dehumidifier comprises a machine body, a machine body air inlet is formed in the machine body, and a fan assembly, a heating device, a rotary wheel assembly, a condensing device and a water collecting tank are sequentially arranged in the machine body. The fan assembly comprises a centrifugal fan and a fan shell, the fan shell comprises a first containing cavity and a second containing cavity which are arranged front and back, the body of the first containing cavity is sealed, a fan air outlet is formed in the periphery of the second containing cavity, and the centrifugal fan is installed in the second containing cavity; the bottom of the condensing device is connected with the water collecting tank; the heating device and the fan assembly are installed on the back face of the rotating wheel assembly, and the first containing cavity is attached to the back face of the rotating wheel assembly. The centrifugal fan is adopted, suction force is improved, noise is reduced, in addition, the fan shell is structurally provided with the first containing cavity and the second containing cavity, the first containing cavity is tightly attached to the rotating wheel assembly, it is ensured that sucked air must be treated through the dehumidification rotating wheel, and the dehumidification effect is improved.

Description

Technical Field

[0001] This utility model belongs to the field of dehumidifier technology, specifically relating to a rotary dehumidifier. Background Technology

[0002] A dehumidifier is a device used to reduce air humidity, commonly used in homes, basements, and warehouses. It contains a fan assembly to promote airflow, allowing humid air to pass through a condenser or moisture-absorbing material inside the dehumidifier, effectively removing moisture and then releasing the dried air back into the environment. However, existing fans typically use axial fans, which have limited airflow and require high-speed operation to achieve sufficient airflow, resulting in significant noise. Furthermore, existing rotary dehumidifiers often suffer from poor sealing between the rotor and fan assemblies, leading to insufficient suction. Therefore, improvements are needed. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model proposes a rotary dehumidifier that can effectively improve suction power, reduce noise, and has a high degree of sealing between the fan assembly and the rotary assembly, resulting in better dehumidification.

[0004] The technical solution of this utility model is implemented as follows:

[0005] A rotary dehumidifier includes a body with an air inlet. Inside the body, a fan assembly, a heating device, a rotary assembly, a condenser, and a water collection tank are sequentially arranged. The fan assembly includes a centrifugal fan and a fan housing. The fan housing includes a first and a second receiving cavity arranged front to back. The first receiving cavity is sealed, and the second receiving cavity has a fan outlet on its outer periphery. The centrifugal fan is installed inside the second receiving cavity. The condenser is installed on the front of the rotary assembly, and its bottom is connected to the water collection tank. The heating device and the fan assembly are installed on the back of the rotary assembly, and the first receiving cavity is in contact with the back of the rotary assembly.

[0006] In a preferred embodiment, the dehumidifying impeller assembly includes a dehumidifying impeller and an impeller housing, wherein the dehumidifying impeller is installed inside the impeller housing; the impeller housing is provided with a plurality of first fixing parts, and the first receiving cavity is provided with corresponding second fixing parts, wherein the first fixing parts and the second fixing parts are fixedly connected by fasteners.

[0007] Furthermore, the side of the rotor housing is provided with a forward-extending extension, and the rotor housing is connected to the condensation device through the extension.

[0008] In a preferred embodiment, the cross-sectional area of ​​the first receiving cavity is greater than the cross-sectional area of ​​the second receiving cavity.

[0009] In a preferred embodiment, a fixed column is provided on the inner side of the second receiving cavity, and the centrifugal fan is rotatably connected to the fixed column.

[0010] Compared with the prior art, the present invention has the following advantages:

[0011] This invention provides a rotary dehumidifier using a centrifugal fan. Compared to existing axial fans, the centrifugal fan has greater suction power, providing higher air pressure while maintaining a lower noise level, thus offering users a quieter dehumidification experience. Furthermore, this invention improves the structure of the fan housing, constructing it as a second receiving cavity to house the centrifugal fan and a first receiving cavity connecting the rotary assembly. The body of the first receiving cavity is sealed and tightly fitted to the back of the rotary assembly, improving the structural sealing and ensuring that all intake air must pass through the dehumidifying rotary wheel, thereby enhancing the dehumidification effect. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a perspective view of a rotary dehumidifier according to the present invention;

[0014] Figure 2 This is an exploded view of a rotary dehumidifier according to the present invention;

[0015] Figure 3 This is a schematic diagram of the fan assembly in a rotary dehumidifier according to the present invention;

[0016] Figure 4 This is a schematic diagram of the combination of fan assembly, rotor assembly, heating device and condensing device in a rotary dehumidifier according to the present invention.

[0017] Figure 5 This is a schematic diagram showing the coordination relationship between the fan assembly, the rotor assembly, the heating device, and the condensing device in a rotary dehumidifier according to this utility model.

[0018] Figure 6 This is a perspective view of the fan housing in a rotary dehumidifier according to this utility model.

[0019] Attached image labels:

[0020] 100 - Body; 110 - Body air inlet; 120 - Body air outlet;

[0021] 10-Fan assembly;

[0022] 20 - Heating device;

[0023] 30 - Rotor assembly; 31 - Dehumidifying rotor; 32 - Rotor housing; 321 - First fixing part; 322 - Extension part;

[0024] 40 - Condensation unit;

[0025] 50-Water collection tank;

[0026] 60-Centrifugal fan;

[0027] 70 - Fan housing; 71 - First receiving cavity; 711 - Second fixing part;

[0028] 72-Second receiving cavity; 721-Fan outlet; 722-Fixing column. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] See Figures 1 to 6 This utility model discloses a rotary dehumidifier, including a body 100 with an air inlet 110. Inside the body 100, a fan assembly 10, a heating device 20, a rotary assembly 30, a condensing device 40, and a water collection tank 50 are sequentially arranged. The fan assembly 10 includes a centrifugal fan 60 and a fan housing 70. The fan housing 70 includes a first receiving cavity 71 and a second receiving cavity 72 arranged front and rear. The first receiving cavity 71 is sealed, and the second receiving cavity 72 has a fan outlet 721 on its outer periphery. The centrifugal fan 60 is installed inside the second receiving cavity 72. The condensing device 40 is installed on the front of the rotary assembly 30, with the bottom of the condensing device 40 connected to the water collection tank 50. The heating device 20 and the fan assembly 10 are installed on the back of the rotary assembly 30, with the first receiving cavity 71 fitting snugly against the back of the rotary assembly 30.

[0031] Specifically, in existing dehumidifiers, axial fans are typically used. These fans inherently have weak suction, and to achieve sufficient airflow, they must rotate at higher speeds, resulting in significant noise. To address this issue, this invention employs a centrifugal fan 60. The centrifugal fan 60 can provide higher air pressure while maintaining a lower noise level, ensuring more efficient and uniform airflow distribution, and providing users with a quieter and more efficient dehumidification experience.

[0032] like Figure 1 and Figure 2 The side of the unit 100 is provided with an air inlet 110 and the top of the unit 100 is provided with an air outlet 120. The fan assembly 10 is located away from the air inlet 110 compared to the condenser 30. Air enters from the air inlet 110, and after being dehumidified, it returns to the room from the air outlet 120.

[0033] Furthermore, in a dehumidifier, the fan assembly 10, heating device 20, impeller assembly 30, and condenser 40 are arranged sequentially inside the unit. Ideally, when the fan assembly 10 rotates, air flows in from the air inlet 110 and should pass through the fan assembly 10, impeller assembly 30, and condenser 40 in sequence before being discharged from the air outlet 120. However, existing dehumidifiers have insufficient sealing between the fan assembly 10, impeller assembly 30, and condenser 40, causing air leakage and affecting the dehumidification effect. To solve this problem, this invention constructs the fan housing 70 as a first receiving cavity 71 for connecting the impeller assembly 30 and a second receiving cavity 72 for receiving the centrifugal fan 60. The body of the first receiving cavity 71 forms a closed space and fits tightly against the back of the impeller assembly 30, ensuring that when the centrifugal fan 60 rotates and draws air in, air is not drawn in from around the centrifugal fan 60 but must pass through the impeller assembly 30, improving the sealing of the structure and thus enhancing the dehumidification effect.

[0034] like Figure 2 In this embodiment, the dehumidifying rotor assembly 30 includes a dehumidifying rotor 31 and a rotor housing 32. The dehumidifying rotor 31 is installed inside the rotor housing 32. The rotor housing 32 is provided with a plurality of first fixing parts 321, and a corresponding second fixing part 711 is provided on the first receiving cavity 71. The first fixing parts 321 and the second fixing parts 711 are fixedly connected by fasteners. Specifically, the fasteners include screws, such as... Figure 5 The first fixing part 321 and the second fixing part 711 cooperate to achieve a stable connection between the rotor assembly 30 and the fan housing 70, which not only enhances the overall stability of the structure, but also ensures the sealing of the air flow path, ensuring that the gas drawn in by the centrifugal fan 60 passes through the rotor assembly 30, thereby improving the dehumidification effect.

[0035] like Figure 4 andFigure 5 To further achieve a sealing effect, in this embodiment, the side of the rotor housing 32 is provided with a forward-extending extension 322, and the rotor housing 32 is connected to the condenser device 40 through the extension 322. Specifically, the condenser device 40 is installed on the front of the rotor assembly 30. By providing the forward-extending extension 322 on the body of the rotor housing 32, the rotor housing 32 and the condenser device 40 are tightly fitted, so that air forms a closed channel between the condenser device 40 and the rotor assembly 30. When the fan assembly 10 draws in air, the air enters from the air inlet 110 at the front of the body 100 and passes through the condenser device 40 and the dehumidifying rotor 31, avoiding the possibility of air entering from other undesignated paths, thereby improving the dehumidification effect.

[0036] like Figure 6 The cross-sectional area of ​​the first receiving cavity 71 is larger than that of the second receiving cavity 72. Specifically, the centrifugal fan 60 is installed in the second receiving cavity 72. When the centrifugal fan 60 rotates, air must be blown out through the fan outlet 721 of the second receiving cavity 72. To ensure smooth and efficient airflow, the cross-sectional area of ​​the second receiving cavity 72 is slightly smaller than that of the first receiving cavity 71, and the position of the fan outlet 721 does not exceed the cross-section of the first receiving cavity 71, thus avoiding airflow blockage at the fan outlet 721.

[0037] Furthermore, such as Figure 3 The second receiving cavity 72 has a fixing post 722 on its inner side, and the centrifugal fan 60 is rotatably connected to the fixing post 722. Specifically, the fixing post 722 extends inward from the inner wall of the second receiving cavity 72 to ensure that the centrifugal fan 60 is stably rotatably connected to the fixing post 722 through its central axis.

[0038] In operation, the rotary dehumidifier of this invention allows air to enter through the air inlet 110 on the body 100, undergoes dehumidification via the condenser 40, and the condensed water flows into the water collection tank 50. The cooler airflow then passes through the rotary assembly 30 and the heating device 20 for further dehumidification before returning to the room through the air outlet 120 at the top of the body 100. In this invention, the first receiving cavity 71 of the fan housing 70 is a sealed structure and is connected to the rotary assembly 30. Furthermore, the extension 322 of the rotary housing 32 is tightly fitted to the condenser 40, improving the structural seal and enhancing the dehumidification effect.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rotary dehumidifier, characterized in that, Includes a body (100), on which an air inlet (110) is provided, and inside the body (100) are arranged a fan assembly (10), a heating device (20), a rotor assembly (30), a condenser device (40) and a water collection tank (50); The fan assembly (10) includes a centrifugal fan (60) and a fan housing (70); The fan housing (70) includes a first receiving cavity (71) and a second receiving cavity (72) arranged in front and behind. The body of the first receiving cavity (71) is sealed, and the outer periphery of the second receiving cavity (72) is provided with a fan outlet (721). The centrifugal fan (60) is installed in the second receiving cavity (72). The condensing device (40) is installed on the front of the rotor assembly (30), and the bottom of the condensing device (40) is connected to the water collection tank (50); the heating device (20) and the fan assembly (10) are installed on the back of the rotor assembly (30), and the first receiving cavity (71) is in contact with the back of the rotor assembly (30).

2. A rotary dehumidifier according to claim 1, characterized in that, The dehumidifying impeller assembly (30) includes a dehumidifying impeller (31) and an impeller housing (32), wherein the dehumidifying impeller (31) is installed inside the impeller housing (32); The outer shell (32) of the rotating wheel is provided with a plurality of first fixing parts (321), and the first receiving cavity (71) is provided with corresponding second fixing parts (711). The first fixing parts (321) and the second fixing parts (711) are fixedly connected by fasteners.

3. A rotary dehumidifier according to claim 2, characterized in that, The side of the rotor housing (32) is provided with a forward-extending extension (322), and the rotor housing (32) is connected to the condensation device (40) through the extension (322).

4. A rotary dehumidifier according to claim 1, characterized in that, The cross-sectional area of ​​the first receiving cavity (71) is greater than the cross-sectional area of ​​the second receiving cavity (72).

5. A rotary dehumidifier according to claim 1, characterized in that, The inner side of the second receiving cavity (72) is provided with a fixing column (722), and the centrifugal fan (60) is rotatably connected to the fixing column (722).

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