A detachable bladeless fan structure

Abstract

This utility model belongs to the field of fan technology, and particularly relates to a detachable bladeless fan structure, including a base, a centrifugal fan, and an air outlet frame. The base has an installation cavity, a through hole on its top side leading to the installation cavity, and an air inlet on its side wall. The centrifugal fan is located in the installation cavity and has an air outlet facing the through hole. The air outlet has a support flange and an upwardly extending connector. The air outlet frame has an internal air duct, and its side ring has a blower port communicating with the air duct. The bottom of the air outlet frame has a connector, and a support ring extends downward from the connector. The connector communicates with the air duct, and the support ring is detachably fitted onto the connector, with its bottom supported on the support flange. When assembling the air outlet frame and the air outlet, simply fit the support ring onto the connector, with its bottom supported on the support flange. Disassembly is also straightforward; simply lift it upwards. Therefore, assembly and disassembly are convenient.

Description

Technical Field

[0001] This utility model belongs to the field of fan technology, and in particular relates to a detachable bladeless fan structure. Background Technology

[0002] A bladeless fan is an innovative type of fan. Unlike traditional fans, a bladeless fan does not have exposed blades to propel air. Instead, it works using aerodynamic principles. The bladeless fan has an air inlet at the bottom, which draws in air and then ejects it at high speed through a ring-shaped outlet.

[0003] A bladeless fan typically consists of a casing and an exhaust frame. The casing and exhaust frame are connected by a snap-fit ​​mechanism. Inside, there is a fan, a motor, and an air duct cavity. Air enters through the air inlet of the casing, is transported through the air duct cavity to the air outlet cavity, and is then blown out through the air outlet.

[0004] For example, Chinese invention patent application CN120120292A discloses a noise-reducing air duct structure and a bladeless fan. This patent document discloses a bladeless fan, including a housing, a fan assembly disposed inside the housing, an air inlet assembly disposed on the housing, an air outlet frame fixedly connected to the housing, a silencer and air guide assembly disposed inside the air outlet frame, and an air distributor. The air outlet frame and the silencer and air guide assembly disposed inside the air outlet frame constitute a noise-reducing air duct structure. The housing is roughly frustum-shaped, with a bottom diameter larger than a top diameter, and a sloping transition on the sides. Its narrow-at-the-top, wide-at-the-bottom shape ensures both internal space and a streamlined appearance. The housing has an internal mounting cavity suitable for installing the fan assembly, and this mounting cavity communicates with the air outlet frame. The casing, serving as the basic support for the bladeless fan, is frustum-shaped, with the fan assembly housed inside. This lowers the fan's center of gravity, expands the base support surface, enhances operational stability, and prevents wobbling and tipping. Simultaneously, an internal cavity provides installation space for the fan assembly, used to generate and transmit airflow. Furthermore, a base is located at the bottom of the casing; in oscillation mode, the casing rotates on this base.

[0005] For fans, dust and other contaminants accumulate inside the fan and ductwork during prolonged operation, necessitating periodic cleaning of the ductwork. This cleaning requires disassembling and rinsing a portion of the ductwork cavity. Since the exhaust frame is fixedly connected to the main casing, disassembly is not convenient. Utility Model Content

[0006] The purpose of this utility model is to provide a detachable bladeless fan structure, which solves the technical problem that the air outlet frame of the existing bladeless fan is not easy to disassemble.

[0007] To achieve the above objectives, this utility model provides a detachable bladeless fan structure, including a base, a centrifugal fan, and an air outlet frame; the base has an installation cavity, the top side of the base has a through hole extending into the installation cavity, and the side wall of the base has an air inlet hole;

[0008] The centrifugal fan is located in the mounting cavity. The centrifugal fan has an air outlet facing the through hole. The air outlet has a supporting flange and an upwardly extending connecting port. The interior of the air outlet frame is provided with an air duct. The side ring of the air outlet frame is provided with an air blowing port communicating with the air duct. The bottom of the air outlet frame is provided with a plug-in interface. The opening of the plug-in interface extends downward with a supporting ring. The plug-in interface communicates with the air duct. The supporting ring is detachably fitted onto the connecting port and its bottom is supported on the supporting flange.

[0009] Furthermore, a rubber ring is also fitted on the outside of the interface.

[0010] Furthermore, a limiting ring extends from the edge of the through hole into the mounting cavity; an extension arm extends downward from the bottom of the air outlet frame, and a limiting part extends from the lower end of the extension arm, which is used to limit the bottom of the limiting ring; the limiting ring is also provided with an clearance groove to avoid the limiting part.

[0011] Furthermore, the top of the base is provided with a downwardly recessed conical cavity, and the through hole is provided at the bottom of the conical cavity; the bottom of the air outlet frame is provided with a conical structure that fits into the conical cavity.

[0012] Furthermore, the inner wall of the mounting cavity is provided with multiple support columns, and the centrifugal fan is connected to each of the support columns, so that the centrifugal fan is suspended in the mounting cavity.

[0013] Furthermore, the side wall of the base is provided with a side cavity recessed into the mounting cavity, and the side wall of the side cavity is provided with the air inlet hole; a heat exchange device is also provided in the side cavity, and the heat exchange device is provided with multiple airflow channels.

[0014] Furthermore, the heat exchange device includes a water tank, and a plurality of airflow channels penetrate the two side walls of the water tank and form a honeycomb structure in the water tank; the airflow channels are independent of the inner cavity of the water tank.

[0015] Furthermore, the opening of the side cavity is covered by a side plate, which has several mesh holes.

[0016] Furthermore, the inner side of the side plate is provided with a receiving cavity, and the water tank is located in the receiving cavity.

[0017] Furthermore, an MS door lock switch is provided inside the side cavity, and a lock head is provided on the inner side of the side plate, the lock head being used to engage with the MS door lock switch.

[0018] The above-mentioned technical solutions in the detachable bladeless fan structure provided by this utility model embodiment have at least the following technical effects:

[0019] The centrifugal fan has a support flange and an upwardly extending connector at the outlet, and a plug-in connector at the bottom of the outlet frame. When assembling the outlet frame and the outlet, simply place the support ring onto the connector and support the bottom on the support flange; disassembly is also straightforward as it can be easily removed by simply lifting it upwards. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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.

[0021] Figure 1 This is a structural diagram of the detachable bladeless fan structure provided in an embodiment of the present utility model.

[0022] Figure 2 This is a cross-sectional view of a detachable bladeless fan structure provided in an embodiment of the present invention.

[0023] Figure 3 for Figure 2 A magnified view of a portion of the image.

[0024] Figure 4 The diagram shows the structure of the air outlet frame of the detachable bladeless fan structure provided in this embodiment of the utility model.

[0025] Figure 5 An exploded view of the base of the detachable bladeless fan structure provided in this embodiment of the utility model.

[0026] Figure 6 An exploded cross-sectional view of the base of the detachable bladeless fan structure provided in an embodiment of this utility model.

[0027] Figure 7 The internal structure diagram of the base of the detachable bladeless fan structure provided in the embodiment of this utility model. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0029] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Furthermore, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0032] In one embodiment of the detachable bladeless fan structure of this utility model, please refer to... Figure 1 and Figure 2 The detachable bladeless fan structure of this embodiment includes a base 100, a centrifugal fan 200, and an air outlet frame 300. The base 100 has a mounting cavity 101, and its top side has a through hole 102 extending into the mounting cavity 101. The side wall of the base 100 has an air inlet 103. The air inlet 103 can be a mesh, thus preventing large particles from entering the mounting cavity 101.

[0033] Reference Figure 2 and Figure 6A centrifugal fan 200 is installed in the mounting cavity 101. The centrifugal fan 200 has an air outlet 201 facing the through hole 102. The opening of the air outlet 201 is provided with a support flange 202 and an upwardly extending interface 203. The air outlet frame 300 has an air duct 301 inside, and the side ring of the air outlet frame 300 has an air blowing port 302 communicating with the air duct 301. The airflow entering the air duct 301 can be blown out from the air blowing port 302. The bottom of the air outlet frame 300 is provided with an insertion interface 303, and the opening of the insertion interface 303 extends downward with a support ring 304. The insertion interface 303 communicates with the air duct 301, and the support ring 304 is detachably fitted onto the interface 203, and its bottom is supported on the support flange 202, so that the air duct 301 is connected to the centrifugal fan 200. When the centrifugal fan 200 is running, it generates airflow, which enters the air duct 301 and is then blown out from the air outlet 302. The centrifugal fan 200 has a support flange 202 and an upwardly extending connector 203 at its outlet, and the outlet frame 300 has a insertion connector 303 at its bottom. When assembling the outlet frame 300 with the outlet 201, simply fit the support ring 304 onto the connector 203, with the bottom of the support ring 304 resting on the support flange 202; disassembly is also straightforward, as it can be easily removed by simply lifting it upwards.

[0034] Furthermore, refer to Figure 2 , Figure 3 and Figure 6 A rubber ring 204 is also fitted on the outside of the interface 203. By setting the rubber ring 204, the elasticity of the rubber ring 204 can be used to make the rubber ring 204 elastically deform. Therefore, when the plug interface 303 is fitted onto the interface 203, the elasticity of the rubber ring 204 can make it interference fit with the plug interface 303, increasing the stability and sealing of the connection.

[0035] Furthermore, refer to Figure 3 , Figure 6 and Figure 7 A limiting ring 110 extends from the edge of the through hole 102 into the mounting cavity 101. An extension arm 310 extends downward from the bottom of the air outlet frame 300, with a limiting portion 311 extending from its lower end. The limiting portion 311 is used to limit the air outlet frame 300 to the bottom of the limiting ring 110. The limiting ring 110 also has a clearance groove 111 to avoid the limiting portion 311. In this embodiment, when the air outlet frame 300 is assembled with the base 100, the extension arm 310 extends into the clearance groove 111, and then the air outlet frame 300 is rotated so that the limiting portion 311 is limited to the bottom of the limiting ring 110, thereby limiting the air outlet frame 300.

[0036] Furthermore, refer to Figure 5The top of the base 100 is provided with a concave conical cavity 104, and the through hole 102 is provided at the bottom of the conical cavity 104; the bottom of the air outlet frame 100 is provided with a conical structure that fits into the conical cavity 104, so that the air outlet frame 100 and the base 100 are taper-fitted, thereby increasing the stability of the assembly of the two.

[0037] Furthermore, refer to Figure 2 and Figure 6 The inner wall of the mounting cavity 101 is also provided with multiple support columns 120. The centrifugal fan 200 is connected to each support column 120, so that the centrifugal fan 200 is suspended in the mounting cavity 101. Therefore, the contact area between the centrifugal fan 200 and the base can be reduced, and the effective flow of air can be ensured.

[0038] Furthermore, refer to Figure 5 and Figure 6 The base 100 has a side cavity 105 recessed into the mounting cavity 101 on its side wall, and an air inlet 103 is provided on the side wall of the side cavity 105. A heat exchange device 400 is also provided inside the side cavity 105, and the heat exchange device 400 has multiple airflow channels 401. In this embodiment, when the centrifugal fan 200 is running, the airflow passes through the airflow channels 401 of the heat exchange device 400, thereby cooling the airflow and making the blown air cool.

[0039] Furthermore, the heat exchange device 400 includes a water tank, with multiple airflow channels 401 penetrating both side walls of the water tank and forming a honeycomb structure within the tank; the airflow channels 401 are independent of the inner cavity of the water tank. Specifically, water can be filled into the water tank and then frozen into ice. When the airflow passes through the airflow channels 401, it exchanges heat with the ice in the water tank, achieving a cooling effect on the airflow.

[0040] Furthermore, refer to Figure 5 and Figure 6 The opening of the side cavity 105 is also covered by a side plate 500, which has several mesh holes. The side plate 500 limits the heat exchange device 400 within the side cavity 105.

[0041] Furthermore, referring to Figure 6 To facilitate the assembly and disassembly of the heat exchange device 400, a receiving cavity 501 is provided on the inner side of the side plate 500 in this embodiment, and the water tank is located in the receiving cavity 501. Therefore, when the water tank is removed, the water tank is removed along with the side plate 500.

[0042] Furthermore, refer to Figure 5 and Figure 6The side cavity 105 is also equipped with an MS door lock switch 106, and the inner side of the side plate 500 is also equipped with a lock head 502, which is used to engage with the MS door lock switch 106. Specifically, in this embodiment, when opening the side plate 500, it is only necessary to press the side plate 500 to make the lock head 502 act on the MS door lock switch 106, so that the MS door lock switch 106 is released and the lock head 502 is pushed out.

[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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 detachable bladeless fan structure, characterized by, It includes a base, a centrifugal fan, and an air outlet frame; the base has an installation cavity, the top side of the base has a through hole extending into the installation cavity, and the side wall of the base has an air inlet hole; The centrifugal fan is located in the mounting cavity. The centrifugal fan has an air outlet facing the through hole. The air outlet has a supporting flange and an upwardly extending connecting port. The interior of the air outlet frame is provided with an air duct. The side ring of the air outlet frame is provided with an air blowing port communicating with the air duct. The bottom of the air outlet frame is provided with a plug-in interface. The opening of the plug-in interface extends downward with a supporting ring. The plug-in interface communicates with the air duct. The supporting ring is detachably fitted onto the connecting port and its bottom is supported on the supporting flange.

2. The detachable bladeless fan structure according to claim 1, wherein: A rubber ring is also fitted on the outside of the interface.

3. The detachable bladeless fan structure according to claim 1, wherein: The edge of the through hole extends into the mounting cavity with a limiting ring; the bottom of the air outlet frame also extends downward with an extension arm, the lower end of which extends with a limiting part, which is used to limit the bottom of the limiting ring; the limiting ring is also provided with an clearance groove to avoid the limiting part.

4. The detachable bladeless fan structure according to any one of claims 1 to 3, wherein: The base has a concave conical cavity at the top and a through hole at the bottom of the conical cavity; the bottom of the air outlet frame has a conical structure that fits into the conical cavity.

5. The detachable bladeless fan structure according to claim 1, wherein: The inner wall of the mounting cavity is also provided with a plurality of support columns, and the centrifugal fan is connected to each of the support columns so that the centrifugal fan is suspended in the mounting cavity.

6. The detachable bladeless fan structure according to claim 1, wherein: The base has a side cavity recessed into the mounting cavity on its side wall, and the side wall of the side cavity has the air inlet hole; a heat exchange device is also provided in the side cavity, and the heat exchange device has multiple airflow channels.

7. The detachable bladeless fan structure according to claim 6, wherein: The heat exchange device includes a water tank, and multiple airflow channels penetrate both sides of the water tank, forming a honeycomb structure in the water tank; the airflow channels are independent of the inner cavity of the water tank.

8. The detachable bladeless fan structure according to claim 7, wherein: The opening of the side cavity is also covered by a side plate, which has several mesh holes.

9. The detachable bladeless fan structure according to claim 8, wherein: The inner side of the side plate is also provided with a receiving cavity, and the water tank is located in the receiving cavity.

10. The detachable bladeless fan structure according to claim 8, wherein: The side cavity is also provided with an MS door lock switch, and the inner side of the side plate is also provided with a lock head, which is used to engage with the MS door lock switch.

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