hanging fan

Abstract

An embodiment of the present invention provides a hanging fan. The hanging fan includes a shell and a fan assembly. The shell includes an annular first side wall structure, a second side wall structure, a connecting portion, and an extension portion arranged opposite to the connecting portion. The first side wall structure, the second side wall structure, the connecting portion, and the extension portion are also used to enclose a first receiving cavity and an annular air duct connected to the first receiving cavity. The shell also has a first air inlet and a first air outlet connected to the annular air duct. The second side wall structure has a length direction. The second side wall structure has two side wall portions arranged in sequence and opposite to each other along the length direction. The first air inlet is located on at least one of the two side wall portions. The fan assembly is located in the first receiving cavity and is used to correspond to the first air inlet. It blows air from the first air inlet to the annular air duct and further blows it out from the first air outlet.

Description

Technical Field

[0001] The present invention relates to the technical field of hanging fans, in particular to a hanging fan. Background Art

[0002] In hot weather or environment, in order to relieve the discomfort caused by high temperature, stuffiness and poor air circulation, people usually use electrical appliances such as hanging fans to drive air flow, thereby improving human comfort. Common hanging fans on the market are usually standing or sitting. In some special environments, such as offices and other environments with small personal space, standing or sitting hanging fans usually take up a large space and are not suitable for use, and the user experience is poor. Common hanging fans, due to their small size, have low air output efficiency, slow cooling speed, and poor user experience. Summary of the Invention

[0003] In view of this, it is necessary to provide a hanging fan with better user experience.

[0004] On the one hand, an embodiment of the present invention provides a hanging fan, which includes a shell and a fan assembly. The shell includes an annular first side wall structure, an annular second side wall structure sleeved on the periphery of the first side wall structure, a connecting portion connected between the first side wall structure and the second side wall structure, and an extension portion arranged opposite to the connecting portion. The first side wall structure, the second side wall structure, the connecting portion and the extension portion are also used to enclose a first storage cavity and an annular air duct connected to the first storage cavity. The shell also has a first air inlet and a first air outlet connected to the annular air duct. The second side wall structure has a length direction. The second side wall structure has two side wall portions arranged in sequence and opposite to each other along the length direction. The first air inlet is located on at least one of the two side wall portions. The fan assembly is located in the first storage cavity and is used to be arranged corresponding to the first air inlet, and blows air from the first air inlet to the annular air duct and further blows it out from the first air outlet.

[0005] Compared with the prior art, the hanging fan provided in the embodiment of the present invention, by arranging the first air inlet on at least one of the two side wall parts arranged in sequence and opposite to each other along the length direction of the second side wall structure, and storing the fan assembly in the first storage cavity surrounded by the first side wall structure, the second side wall structure, the connecting part and the extending part and arranged corresponding to the first air inlet, can enable the fan assembly to blow the wind from the first air inlet toward the annular air duct from the side where at least one of the two side wall parts arranged in sequence and opposite to each other along the length direction of the second side wall structure of the hanging fan is located, and further from the The air is blown out through the first air outlet, thereby achieving the purpose of improving the air outlet efficiency of the hanging fan and quickly cooling down. At the same time, the first side wall structure, the second side wall structure, the connecting part and the extending part form a first storage cavity and an annular air duct connected to the first storage cavity. The first air inlet and the first air outlet are connected to the annular air duct, and the fan assembly is arranged in the first storage cavity, so that the fan assembly is wrapped inside the shell, making the hanging fan safer and quieter when in use. The structure of the entire hanging fan is more compact and simple, and occupies less space. It can be applied to a wider range of uses and is easy to store and carry.

[0006] In one embodiment, the number of the first storage chambers is at least two, and the two first storage chambers are respectively located at both ends of the annular air duct and are connected to the annular air duct, the first air inlet includes a first sub-air inlet and a second sub-air inlet respectively located on the two side wall parts, and the first sub-air inlet and the second sub-air inlet are respectively connected to the two first storage chambers, and the number of the fan assemblies is at least two, and the two fan assemblies are respectively located in the two first storage chambers and correspond to the first sub-air inlet and the second sub-air inlet, respectively, for blowing the wind from the corresponding first sub-air inlet and the second sub-air inlet toward the annular air duct, and further blowing it out from the first air outlet. By setting at least two of the first storage chambers respectively located at the two ends of the annular air duct and connected to the annular air duct, and setting the first sub-air inlet and the second sub-air inlet respectively connected to the two first storage chambers, and setting two fan assemblies respectively located in the two first storage chambers and corresponding to the first sub-air inlet and the second sub-air inlet respectively, the first sub-air inlet and the second sub-air inlet can simultaneously take in air from both sides of the hanging fan and blow it toward the annular air duct, thereby increasing the air intake of the hanging fan, and the air intake on both sides does not affect each other, thereby improving the air intake efficiency of the hanging fan, and making the air intake more uniform, thereby improving the air outlet efficiency of the hanging fan.

[0007] In one embodiment, there are multiple first sub-air inlets, and the multiple first sub-air inlets are arranged in a circle around a first preset center; each of the first sub-air inlets is shaped like a fan relative to the first preset center; there are multiple second sub-air inlets, and the multiple second sub-air inlets are arranged in a circle around a second preset center; each of the second sub-air inlets is shaped like a fan relative to the second preset center. By setting the number of the first sub-air inlets and the second sub-air inlets to be multiple, and each of the first sub-air inlets and the second sub-air inlets to be shaped like a fan arranged in a circle around the first preset center and the second preset center, respectively, the coverage area of the first sub-air inlets and the second sub-air inlets can be increased, the air intake of the hanging fan can be increased, and thus the air outlet efficiency of the hanging fan can be improved.

[0008] In one embodiment, the fan of the fan assembly is an axial flow fan, and the fan of the fan assembly includes a fan shaft and fan blades mounted on the fan shaft, and the extension direction of the fan shaft is the same as the length direction. By setting the fan of the fan assembly as an axial flow fan, and the extension direction of the fan shaft of the axial flow fan is the same as the length direction of the hanging fan, the distance between the incoming air and the annular air duct can be shortened, the loss of the incoming air before entering the annular air duct can be reduced, and the air intake efficiency can be improved. At the same time, the use of the axial flow fan can reduce the noise of the hanging fan during operation and improve the air outlet efficiency of the hanging fan.

[0009] In one embodiment, the fan assembly includes a fan and an energy-gathering structure, wherein the energy-gathering structure is configured to converge the wind from the fan and provide it to the annular air duct. By providing the fan and the energy-gathering structure, the fan can blow the wind from the first air inlet toward the energy-gathering structure, where the energy is gathered and then blown out through the first air outlet, thereby improving the air outlet efficiency of the hanging fan and achieving rapid temperature reduction.

[0010] In one embodiment, the energy gathering structure has an energy gathering cavity, a second air inlet and a second air outlet, the second air inlet and the second air outlet are respectively connected to the two ends of the energy gathering cavity, the fan is located between the first air inlet and the second air inlet or in the part of the energy gathering cavity close to the second air inlet, the fan is used to blow the wind from the first air inlet toward the energy gathering cavity for energy gathering, so that the wind after energy gathering is blown toward the annular air duct through the second air outlet, and further blown out from the first air outlet. By arranging the energy gathering cavity, the second air inlet and the second air outlet on the energy gathering structure, and the second air inlet and the second air outlet are respectively connected to the two ends of the energy gathering cavity, the fan is located between the first air inlet and the second air inlet or located in the part of the energy gathering cavity close to the second air inlet, so that the wind blown in from the first air inlet by the fan is blown into the second air inlet and then energy is gathered in the energy gathering cavity, and then accelerated to be blown into the annular air duct from the second air outlet, so that the wind speed entering the annular air duct is greater and the wind force is stronger, so that the wind out of the first air outlet is faster and the wind force is greater, thereby improving the air outlet efficiency of the hanging fan.

[0011] In one embodiment, the energy-gathering structure includes a first annular shell, a second annular shell sleeved on the periphery of the first annular shell, and at least two energy-gathering connecting plates connected between the first annular shell and the second annular shell. The space between the first annular shell and the second annular shell forms the energy-gathering cavity. At least two energy-gathering connecting plates are located in the energy-gathering cavity and divide the energy-gathering cavity into a plurality of sub-energy-gathering cavities. Each sub-energy-gathering cavity is used to gather energy from the second air inlet and blow the gathered wind out through the second air outlet. By providing the energy-gathering cavity formed by the first annular shell and the second annular shell, and at least two energy-gathering connecting plates are located in the energy-gathering cavity and divide the energy-gathering cavity into a plurality of sub-energy-gathering cavities, the wind from the second air inlet can be gathered in the plurality of sub-energy-gathering cavities and blown out through the second air outlet, thereby improving the air outlet efficiency of the hanging fan and achieving the purpose of rapid cooling.

[0012] In one embodiment, each of the energy-gathering connecting plates extends along the arc direction from the second air inlet toward the second air outlet, so that each sub-energy-gathering cavity extends along the arc direction, and the arc directions of the multiple sub-energy-gathering cavities protrude along the same preset clockwise direction; the rotation direction of the fan is the same as the preset clockwise direction. By setting each of the energy-gathering connecting plates to extend along the arc direction from the second air inlet toward the second air outlet, so that each sub-energy-gathering cavity extends along the arc direction, and the arc directions of the multiple sub-energy-gathering cavities protrude along the same preset clockwise direction; the rotation direction of the fan is the same as the preset clockwise direction, the wind entering the sub-energy-gathering cavity can be turbo-accelerated, and the wind in the multiple sub-energy-gathering cavities can be combined and focused, thereby improving the air outlet efficiency of the hanging fan and achieving the purpose of rapid cooling.

[0013] In one embodiment, the second annular housing includes a first annular portion adjacent to the second air inlet, an intermediate annular portion connected to the first annular portion, and a second annular portion connected to the intermediate annular portion and adjacent to the second air outlet. The fan is located in the space enclosed by the first annular portions, and the inner diameter of the end of the first annular portion away from the intermediate annular portion is larger than the inner diameter of the first annular portion adjacent to the intermediate annular portion. By setting the inner diameter of the end of the first annular portion away from the intermediate annular portion to be larger than the inner diameter of the first annular portion adjacent to the intermediate annular portion, more air from the fan can enter the energy-gathering structure, thereby reducing air intake losses and improving air intake efficiency.

[0014] In one embodiment, the fan assembly further includes a drive motor, and the first annular housing has an inner storage space, in which the drive motor is located. By arranging the drive motor in the storage space, the entire hanging fan structure can be made more compact and simple, and occupy less space.

[0015] In one embodiment, the first sidewall structure further defines a hollow air outlet channel, and the air from the first air outlet is accelerated and converged in the air outlet channel before being blown out from the side where the connecting portion is located. By defining the hollow air outlet channel as the first sidewall structure, the air from the first air outlet is accelerated and blown out from the side where the connecting portion is located after forming a circular convergence in the air outlet channel, making the air outlet faster, more precise, and more concentrated, thereby achieving rapid cooling and improving the air outlet efficiency of the hanging fan.

[0016] In one embodiment, the extension portion is connected to an end of the second side wall structure away from the connection portion, and the end of the extension portion away from the second side wall structure and the end of the first side wall structure away from the connection portion respectively form the first air outlet, and the first air outlet is a slit-type air outlet that discharges air toward the side where the connection portion is located. By having the first air outlet be a slit-type air outlet that discharges air toward the side where the connection portion is located, the air outlet can be compressed to the maximum extent, and the air pressure in the portion of the annular air duct adjacent to the first air outlet can be greater than the air pressure outside the first air outlet, thereby forming a negative pressure to press the air outlet in the annular air duct toward the first air outlet, making the air outlet speed faster and improving the air outlet efficiency of the hanging fan.

[0017] In one embodiment, the first sidewall structure includes a first curved sidewall that bulges inward, and the distance between the first curved sidewall and the second sidewall structure gradually decreases, then gradually increases, and then decreases along the direction from the connecting portion to the extending portion. By providing the first sidewall structure with a first curved sidewall that bulges inward, and the distance between the first curved sidewall and the second sidewall structure gradually decreases, then gradually increases, and then decreases along the direction from the connecting portion to the extending portion, the volume of the annular air duct can be increased while compressing and accelerating the airflow, so that the airflow from the first air outlet is blown out faster and the temperature can be reduced.

[0018] In one embodiment, the outer surface of the first curved side wall away from the second side wall structure is an inwardly convex curved surface, which is used to guide the air from the first air outlet toward the side where the connecting portion is located. By setting the outer surface of the first curved side wall away from the second side wall structure as an inwardly convex curved surface, the air discharged from the first air outlet can be guided. After being compressed and discharged, the air discharged from the first air outlet rushes down the curved surface in the original direction under the action of inertia, driving the air near the curved surface to rush down together, forming a waterfall-like pressurization effect, thereby improving the air outlet efficiency of the hanging fan.

[0019] In one embodiment, the hanging fan further includes a fixing member connected to the housing for fixing the hanging fan to an external object; the fixing member includes a first fixing member and a second fixing member, the first fixing member being connected to the second side wall structure, the second fixing member being connected to the second side wall structure, and the first fixing member and the second fixing member being used to clamp two sides of the external object. By providing the first fixing member and the second fixing member, the hanging fan can be fixed to external objects such as computers and tablets, which is convenient for users to use, expands the scope of use of the hanging fan, and provides a better user experience. At the same time, the first fixing member and the second fixing member clamping two sides of the external object can increase the stability of the hanging fan fixed to the external object, thereby ensuring the stability and safety of the hanging fan during operation.

[0020] In one embodiment, at least one of the first fixing member and the second fixing member is rotatably connected to the second sidewall structure. By arranging at least one of the first fixing member and the second fixing member to be rotatably connected to the second sidewall structure, the hanging fan can be fixed and removed by rotating at least one of the first fixing member and the second fixing member, thereby facilitating user use and improving user experience.

[0021] On the second aspect, an embodiment of the present invention further provides a hanging fan, which includes a shell and a fan assembly. The shell includes an annular first side wall structure, an annular second side wall structure sleeved on the periphery of the first side wall structure, a connecting portion connected between the first side wall structure and the second side wall structure, and an extension portion arranged opposite to the connecting portion. The first side wall structure, the second side wall structure, the connecting portion and the extension portion are also used to enclose a first receiving cavity and an annular air duct connected to the first receiving cavity. The shell also has a first air inlet and a first air outlet connected to the annular air duct. The fan assembly is located in the first receiving cavity and includes a fan and an energy gathering structure. The energy gathering structure is used to gather the wind from the fan and provide it to the annular air duct.

[0022] The hanging fan provided by an embodiment of the present invention, by arranging the fan and the energy gathering structure in the first storage cavity surrounded by the first side wall structure, the second side wall structure, the connecting part and the extension part, can enable the fan to blow the wind from the first air inlet toward the energy gathering structure, and gather energy in the energy gathering cavity of the energy gathering structure, so that the gathered wind blows toward the annular air duct surrounded by the first side wall structure, the second side wall structure, the connecting part and the extension part, and is further blown out from the first air outlet, thereby achieving the purpose of improving the air outlet efficiency of the hanging fan and quickly cooling down. At the same time, the first side wall structure, the second side wall structure, the connecting part and the extension part form a first storage cavity and an annular air duct connected to the first storage cavity, the first air inlet and the first air outlet are connected to the annular air duct, and the fan is arranged in the first storage cavity, so that the fan assembly is wrapped inside the shell, making the hanging fan safer and quieter when in use, and the structure of the entire hanging fan is more compact and simple, occupies less space, can be applied to a wider range of uses, and is easy to store and carry.

[0023] In one embodiment, the energy-gathering structure has an energy-gathering cavity, a second air inlet, and a second air outlet. The second air inlet and the second air outlet are respectively connected to the two ends of the energy-gathering cavity. The fan is located between the first air inlet and the second air inlet or in the portion of the energy-gathering cavity close to the second air inlet. The fan is used to blow the wind from the first air inlet toward the energy-gathering cavity for energy gathering, so that the energy-gathered wind is blown toward the annular air duct through the second air outlet, and further blown out from the first air outlet. The above-mentioned energy-gathering structure enables the energy-gathered wind to be blown toward the annular air duct formed by the first side wall structure, the second side wall structure, the connecting portion, and the extension portion through the second air outlet, and further blown out from the first air outlet, thereby achieving the purpose of improving the air outlet efficiency of the hanging fan and rapidly cooling down.

[0024] In one embodiment, the energy-gathering structure includes a first annular shell, a second annular shell sleeved on the periphery of the first annular shell, and at least two energy-gathering connecting plates connected between the first annular shell and the second annular shell. The space between the first annular shell and the second annular shell forms the energy-gathering cavity. At least two energy-gathering connecting plates are located in the energy-gathering cavity and divide the energy-gathering cavity into a plurality of sub-energy-gathering cavities. Each sub-energy-gathering cavity is used to gather energy from the second air inlet and blow the gathered wind out through the second air outlet. By providing the energy-gathering cavity formed by the first annular shell and the second annular shell, and at least two energy-gathering connecting plates are located in the energy-gathering cavity and divide the energy-gathering cavity into a plurality of sub-energy-gathering cavities, the wind from the second air inlet can be gathered in the plurality of sub-energy-gathering cavities and blown out through the second air outlet, thereby improving the air outlet efficiency of the hanging fan and achieving the purpose of rapid cooling.

[0025] In one embodiment, each of the energy-gathering connecting plates extends along the arc direction from the second air inlet toward the second air outlet, so that each sub-energy-gathering cavity extends along the arc direction, and the arc directions of the multiple sub-energy-gathering cavities protrude along the same preset clockwise direction; the rotation direction of the fan is the same as the preset clockwise direction. By setting each of the energy-gathering connecting plates to extend along the arc direction from the second air inlet toward the second air outlet, so that each sub-energy-gathering cavity extends along the arc direction, and the arc directions of the multiple sub-energy-gathering cavities protrude along the same preset clockwise direction; the rotation direction of the fan is the same as the preset clockwise direction, the wind entering the sub-energy-gathering cavity can be turbo-accelerated, and the wind in the multiple sub-energy-gathering cavities can be combined and focused, thereby improving the air outlet efficiency of the hanging fan and achieving the purpose of rapid cooling.

[0026] In one embodiment, the second annular housing includes a first annular portion adjacent to the second air inlet, an intermediate annular portion connected to the first annular portion, and a second annular portion connected to the intermediate annular portion and adjacent to the second air outlet. The fan is located in the space enclosed by the first annular portions, and the inner diameter of the end of the first annular portion away from the intermediate annular portion is larger than the inner diameter of the first annular portion adjacent to the intermediate annular portion. By setting the inner diameter of the end of the first annular portion away from the intermediate annular portion to be larger than the inner diameter of the first annular portion adjacent to the intermediate annular portion, more air from the fan can enter the energy-gathering structure, thereby reducing air intake losses and improving air intake efficiency.

[0027] In one embodiment, the fan assembly further includes a drive motor, and the first annular housing has an inner storage space, in which the drive motor is located. By arranging the drive motor in the storage space, the entire hanging fan structure can be made more compact and simple, and occupy less space. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 It is a three-dimensional diagram of a hanging fan provided by an embodiment of the present invention.

[0030] Figure 2 yes Figure 1 A three-dimensional view of the hanging fan from another angle.

[0031] Figure 3 yes Figure 1 The three-dimensional exploded schematic diagram of the hanging fan shown.

[0032] Figure 4 yes Figure 1 A cross-sectional view of the hanging fan shown.

[0033] Figure 5 yes Figure 1 A cross-sectional view of the hanging fan from another angle is shown.

[0034] Figure 6 yes Figure 1 A three-dimensional view of the energy-gathering structure of the hanging fan shown.

[0035] Figure 7 yes Figure 1 A cross-sectional view of the energy-gathering structure of the hanging fan is shown.

[0036] Figure 8 yes Figure 1 Schematic diagram of the hanging fan clamping external objects. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0038] In the present invention, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe the present invention and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0039] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0040] Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0041] Furthermore, the terms "first," "second," etc., are primarily used to distinguish between different devices, elements, or components (which may or may not be of the same type and configuration), and are not intended to indicate or imply the relative importance or quantity of the devices, elements, or components indicated. Unless otherwise specified, "plurality" means two or more.

[0042] See also Figures 1-8 An embodiment of the present invention provides a hanging fan 1 that can be hung or clamped on an external object, such as the edge of a flat structure such as a mobile phone, tablet computer, display screen, flat-screen TV, blackboard, whiteboard, table, bookshelf, headboard, or daily objects such as the push rod of a stroller, to blow air to the human body. The hanging or clamping arrangement can free the user's hands, making it convenient to use. The hanging fan 1 includes a housing 10 and a fan assembly 20.

[0043] The housing 10 includes an annular first side wall structure 11, an annular second side wall structure 12 sleeved on the periphery of the first side wall structure 11, a connecting portion 13 connected between the first side wall structure 11 and the second side wall structure 12, and an extending portion 14 arranged opposite to the connecting portion 13. The first side wall structure 11, the second side wall structure 12, the connecting portion 13 and the extending portion 14 are also used to enclose a first receiving cavity 15 and an annular air duct 16 connected to the first receiving cavity 15. The housing 10 also has an annular air duct 16 connected to the annular air duct 16. The air duct 16 communicates with a first air inlet 17 and a first air outlet 18. The second sidewall structure 12 has a length direction L and includes two sidewall portions 121 arranged sequentially and oppositely along the length direction. The first air inlet 17 is located on at least one of the two sidewall portions 121. The fan assembly 20 is located in the first receiving chamber 15 and is configured to correspond to the first air inlet 17. The fan assembly 20 blows air from the first air inlet 17 into the annular air duct 16 and further out of the first air outlet 18. It is understood that when the fan assembly 20 is housed in the first receiving chamber 15, it can blow air from the first air inlet 17 into the annular air duct 16 and further out of the first air outlet 18, thereby promoting air circulation and reducing the ambient temperature.

[0044] The hanging fan 1 provided in an embodiment of the present invention is configured to provide the first air inlet 17 on at least one of the two side wall portions 121 of the second side wall structure 12 that are sequentially arranged and opposite to each other along the length direction L, and to accommodate the fan assembly 20 in the first receiving cavity 15 surrounded by the first side wall structure 11, the second side wall structure 12, the connecting portion 13 and the extending portion 14, and to be arranged corresponding to the first air inlet 17. The fan assembly 20 can blow the wind from the first air inlet 17 toward the annular air duct 16 from the side where at least one of the two side wall portions 121 of the second side wall structure 12 that are sequentially arranged and opposite to each other along the length direction L is located, and further from the first air inlet 17 to the annular air duct 16. An air outlet 18 blows out to achieve the purpose of improving the air outlet efficiency of the hanging fan 1 and quickly cooling down. At the same time, the first side wall structure 11, the second side wall structure 12, the connecting part 13 and the extending part 14 form a first storage chamber 15 and an annular air duct 16 connected to the first storage chamber 15. The first air inlet 17 and the first air outlet 18 are connected to the annular air duct 16, and the fan assembly 20 is arranged in the first storage chamber 15, so that the fan assembly 20 is wrapped inside the shell 10, making the hanging fan 1 safer and quieter when in use, and the structure of the entire hanging fan 1 is more compact and simple, takes up less space, can be applied to a wider range of uses, and is easy to store and carry.

[0045] Specifically, the number of the first storage chambers 15 is at least two, and the two first storage chambers 15 are respectively located at both ends of the annular air duct 16 and are connected to the annular air duct 16. The first air inlet 17 includes a first sub-air inlet 171 and a second sub-air inlet 172 respectively located at the two side wall parts 121. The first sub-air inlet 171 and the second sub-air inlet 172 are respectively connected to the two first storage chambers 15. The number of the fan assemblies 20 is at least two, and the two fan assemblies 20 are respectively located in the two first storage chambers 15 and respectively correspond to the first sub-air inlet 171 and the second sub-air inlet 172, and are used to blow the wind from the corresponding first sub-air inlet 171 and the second sub-air inlet 172 toward the annular air duct 16, and further blow it out from the first air outlet 18. By setting at least two of the first storage chambers 15 respectively located at the two ends of the annular air duct 16 and connected to the annular air duct 16, and setting the first sub-air inlet 171 and the second sub-air inlet 172 respectively connected to the two first storage chambers 15, and setting two fan assemblies 20 respectively located in the two first storage chambers 15 and corresponding to the first sub-air inlet 171 and the second sub-air inlet 172 respectively, the first sub-air inlet 171 and the second sub-air inlet 172 can simultaneously take in air from both sides of the hanging fan 1 and blow it toward the annular air duct 16, thereby increasing the air intake of the hanging fan 1, and the air intake on both sides does not affect each other, thereby improving the air intake efficiency of the hanging fan 1, and making the air intake more uniform, thereby improving the air outlet efficiency of the hanging fan 1.

[0046] Furthermore, the number of the first sub-air inlets 171 is multiple, and the multiple first sub-air inlets 171 are arranged in a circle around a first preset center; the shape of each first sub-air inlet 171 is a fan-shaped shape set relative to the first preset center; the number of the second sub-air inlets 172 is multiple, and the multiple second sub-air inlets 172 are arranged in a circle around a second preset center; the shape of each second sub-air inlet 172 is a fan-shaped shape set relative to the second preset center. By setting the number of the first sub-air inlets 171 and the second sub-air inlet 172 to be multiple, and each of the first sub-air inlet 171 and the second sub-air inlet 172 to be a fan-shaped shape arranged in a circle around the first preset center and the second preset center, respectively, the coverage area of the first sub-air inlet 171 and the second sub-air inlet 172 can be increased, the air intake of the hanging fan 1 can be increased, and the air outlet efficiency of the hanging fan 1 can be improved.

[0047] Furthermore, the fan 21 of the fan assembly 20 is an axial flow fan, and the fan 21 of the fan assembly 20 includes a fan shaft 211 and fan blades 212 mounted on the fan shaft 211, and the extension direction of the fan shaft 211 is the same as the length direction L. In this embodiment, the fan 21 of the fan assembly 20 can be an axial flow fan. When the axial flow fan is working, the fan blades 212 push the air to flow in the same direction as the fan shaft 211. The axial flow fan has the characteristics of high air output efficiency and low noise. It can output the maximum wind force in the smallest space with low noise. By setting the fan 21 of the fan assembly 20 as an axial flow fan, and the extension direction of the fan shaft 211 of the axial flow fan is the same as the length direction L of the hanging fan 1, the distance from the incoming air to the annular air duct 16 can be shortened, the loss of the incoming air before entering the annular air duct 16 can be reduced, and the air intake efficiency can be improved. At the same time, the use of the axial flow fan can reduce the noise of the hanging fan 1 when it is working and improve the air output efficiency of the hanging fan 1.

[0048] Furthermore, the fan assembly 20 includes a fan 21 and an energy-gathering structure 22. The energy-gathering structure 22 is used to converge the wind from the fan 21 and provide it to the annular air duct 16. By providing the fan 21 and the energy-gathering structure 22, the fan 21 can blow the wind from the first air inlet 17 toward the energy-gathering structure 22, and gather energy at the energy-gathering structure 22, so that the gathered wind is blown out through the first air outlet 18, thereby improving the air outlet efficiency of the hanging fan 1 and achieving rapid cooling.

[0049] Specifically, the energy gathering structure 22 has an energy gathering cavity 221, a second air inlet 222 and a second air outlet 223. The second air inlet 222 and the second air outlet 223 are respectively connected to the two ends of the energy gathering cavity 221. The fan 21 is located between the first air inlet 17 and the second air inlet 222 or in the part of the energy gathering cavity 221 close to the second air inlet 222. The fan 21 is used to blow the wind from the first air inlet 17 to the energy gathering cavity 221 for energy gathering, so that the energy-gathered wind is blown to the annular air duct 16 through the second air outlet 223, and further blown out from the first air outlet 18. It can be understood that the fan assembly 20 housed in the first receiving chamber 15 can, when in operation, blow wind from the first air inlet 17 into the energy-gathering chamber 221 for energy gathering, so that the gathered wind is blown toward the annular air duct 16 connected to the first receiving chamber 15 via the second air outlet 223, and further blown out from the first air outlet 18, thereby promoting air circulation and lowering the ambient temperature. At the same time, the fan 21 can be located between the first air inlet 17 and the second air inlet 222, that is, the housing of the fan 21 can be connected between the first air inlet 17 and the second air inlet 222, or the fan 21 can be directly located in the portion of the energy-gathering chamber 221 near the second air inlet 222, so that the wind output from the fan 21 is directly blown into the energy-gathering chamber 221, thereby reducing air intake losses. By arranging the energy gathering cavity 221, the second air inlet 222 and the second air outlet 223 on the energy gathering structure 22, and the second air inlet 222 and the second air outlet 223 are respectively connected to the two ends of the energy gathering cavity 221, the fan 21 is located between the first air inlet 17 and the second air inlet 222 or located in the part of the energy gathering cavity 221 close to the second air inlet 222, so that the wind blown in from the first air inlet 17 by the fan 21 is blown into the second air inlet 222 and then energy is gathered in the energy gathering cavity 221, and then accelerated to be blown into the annular air duct 16 from the second air outlet 223, so that the wind speed entering the annular air duct 16 is greater and the wind force is stronger, so that the wind out of the first air outlet 17 is faster and the wind force is greater, thereby improving the air outlet efficiency of the hanging fan 1.

[0050] Furthermore, the energy gathering structure 22 includes a first annular shell 224, a second annular shell 225 arranged on the periphery of the first annular shell 224, and at least two energy gathering connecting plates 226 connected between the first annular shell 224 and the second annular shell 225. The space between the first annular shell 224 and the second annular shell 225 forms the energy gathering cavity 221. At least two of the energy gathering connecting plates 226 are located in the energy gathering cavity 221 and divide the energy gathering cavity 221 into multiple sub-energy gathering cavities 228. Each sub-energy gathering cavity 228 is used to gather the wind from the second air inlet 222 and blow the gathered wind out through the second air outlet 223. By setting the energy gathering chamber 221 surrounded by the first annular shell 224 and the second annular shell 225, and at least two energy gathering connecting plates 226 are located in the energy gathering chamber 221 to divide the energy gathering chamber 221 into multiple sub-energy gathering chambers 228, the wind from the second air inlet 222 can be gathered in the multiple sub-energy gathering chambers 228 and the gathered wind can be blown out through the second air outlet 223, thereby improving the air outlet efficiency of the hanging fan 1 and achieving the purpose of rapid cooling.

[0051] Specifically, each of the energy-gathering connecting plates 226 extends along the arc direction of the second air inlet 222 toward the second air outlet 223, so that each sub-energy-gathering cavity 228 extends along the arc direction, and multiple arc directions of multiple sub-energy-gathering cavities 228 protrude along the same preset clockwise direction; the rotation direction of the fan 21 is the same as the preset clockwise direction. It can be understood that each of the energy-gathering connecting plates 226 extends in the same arc direction along the second air inlet 222 toward the second air outlet 223, so that each sub-energy-gathering cavity 228 extends along the arc direction to form a certain angle of rotation, and the multiple arc directions of the multiple sub-energy-gathering cavities 228 are raised along the same preset clockwise direction, so that each sub-energy-gathering cavity 228 is spatially twisted toward the same preset clockwise direction. At the same time, the rotation direction of the fan 21 is the same as the preset clockwise direction. Therefore, after the air outlet of the fan 21 enters the multiple sub-energy-gathering cavities 228, it will be twisted in the multiple sub-energy-gathering cavities 228, and at the same time, after blowing out the multiple sub-energy-gathering cavities 228, it will be twisted to form a turbine energy-gathering air outlet, thereby increasing the air outlet speed. By setting each of the energy-gathering connecting plates 226 to extend along the arc direction of the second air inlet 222 toward the second air outlet 223, each sub-energy-gathering cavity 228 extends along the arc direction, and multiple arc directions of multiple sub-energy-gathering cavities 228 protrude along the same preset clockwise direction; the rotation direction of the fan 21 is the same as the preset clockwise direction, which can form turbine acceleration for the wind entering the sub-energy-gathering cavity 228, and combine and gather the wind in multiple sub-energy-gathering cavities 228, thereby improving the air outlet efficiency of the hanging fan 1 and achieving the purpose of rapid cooling.

[0052] Furthermore, the second annular housing 225 includes a first annular portion 225a adjacent to the second air inlet 222, an intermediate annular portion 225b connected to the first annular portion 225a, and a second annular portion 225c connected to the intermediate annular portion 225b and adjacent to the second air outlet 223. The fan 21 is located in the space enclosed by the first annular portion 225a. The inner diameter of the end of the first annular portion 225a away from the intermediate annular portion 225b is larger than the inner diameter of the first annular portion 225a adjacent to the intermediate annular portion 225b. It is understood that the fan 21 is located between the first air inlet 17 and the second air inlet 222 or in the portion of the energy concentrating chamber 221 adjacent to the second air inlet 222. That is, the housing of the axial flow fan 21 can be sleeved with the first annular portion 225a, or the fan 21 can be directly located in the space enclosed by the first annular portion 225a, so that the air discharged by the fan 21 directly enters the energy concentrating structure 22, thereby reducing air intake loss. By setting the inner diameter of the first annular portion 225a away from the middle annular portion 225b to be larger than the inner diameter of the first annular portion 225a close to the middle annular portion 225b, more air from the fan 21 can enter the energy gathering structure 22, reducing air intake loss and improving air intake efficiency.

[0053] Furthermore, the fan assembly 20 also includes a drive motor 213. The first annular housing 224 has an inner storage space 227, and the drive motor 213 is located in the storage space 227. It can be understood that the fan assembly 20 is provided with the drive motor 213, and the drive motor 213 can be controlled by an external button to drive the fan assembly 20 to operate, or the drive motor 213 can be remotely controlled by a remote control to drive the fan assembly 20 to operate, which is convenient for users and improves the user experience. By arranging the drive motor 213 in the storage space 227, the structure of the entire hanging fan 1 can be made more compact and simple, and the space occupied is smaller.

[0054] Furthermore, the first side wall structure 11 also forms a hollow air outlet channel 19, and the air outlet from the first air outlet 18 is accelerated and converged in the air outlet channel 19 and blown out from the side where the connecting portion 13 is located. It can be understood that in the hollow air outlet channel 19 formed by the first side wall structure 11, the air outlet from the first air outlet 18 is converged, accelerated, and guided in the air outlet channel 19, so that the air outlet from the first air outlet 18 is accelerated and converged in the air outlet channel 19 and blown out from the side where the connecting portion 13 is located, so that the hanging fan 1 achieves maximum air outlet efficiency and quickly cools down. The first side wall structure 11 also forms a hollow air outlet channel 19, so that the air outlet from the first air outlet 18 is accelerated and blown out from the side where the connecting portion 13 is located after forming a ring-shaped convergence in the air outlet channel 19, so that the air outlet is faster, more accurate, and more concentrated, thereby achieving the purpose of quickly cooling down and improving the air outlet efficiency of the hanging fan 1.

[0055] Furthermore, the extension portion 14 is connected to one end of the second side wall structure 12 away from the connecting portion 13, and the end of the extension portion 14 away from the second side wall structure 12 and the end of the first side wall structure 11 away from the connecting portion 13 respectively form the first air outlet 18, and the first air outlet 18 is a slit-type air outlet that discharges air toward the side where the connecting portion 13 is located. It can be understood that the extension portion 14 is connected to the end of the second side wall structure 12 away from the connecting portion 13, and the end of the extension portion 14 away from the second side wall structure 12 and the end of the first side wall structure 11 away from the connecting portion 13 respectively form the first air outlet 18. The first air outlet 18 is a slit-type air outlet that discharges air toward the side where the connecting portion 13 is located, which can maximize the compression of the air outlet and make the air pressure in the part of the annular air duct 16 adjacent to the first air outlet 18 greater than the air pressure outside the first air outlet 18, thereby forming a negative pressure to press the air outlet in the annular air duct 16 toward the first air outlet 18, making the air outlet speed faster and improving the air outlet efficiency of the hanging fan 1. Since the first air outlet 18 is a slit-type air outlet that discharges air toward the side where the connecting portion 13 is located, the air outlet can be compressed to the maximum extent, and the air pressure in the portion of the annular air duct 16 adjacent to the first air outlet 18 can be made greater than the air pressure outside the first air outlet 18, thereby forming a negative pressure to press the air outlet in the annular air duct 16 toward the first air outlet 18, making the air outlet speed faster and improving the air outlet efficiency of the hanging fan 1.

[0056] Furthermore, the first side wall structure 11 includes a first curved side wall 111 that bulges inward, and the distance between the first curved side wall 111 and the second side wall structure 12 first gradually decreases, then gradually increases, and then decreases along the direction from the connecting portion 13 to the extending portion 14; in addition, the outer surface of the first curved side wall 111 away from the second side wall structure 12 is a curved surface that bulges inward, which is used to guide the wind of the first air outlet 18 toward the side where the connecting portion 13 is located. It can be understood that the first side wall structure 11 includes a first curved side wall 111 that bulges toward the inside, and the distance between the first curved side wall 111 and the second side wall structure 12 gradually decreases, then gradually increases, and then decreases in the direction from the connecting portion 13 to the extending portion 14, so that the volume of the annular air duct 16 can be maximized. At the same time, the outer surface of the first curved side wall 111 away from the second side wall structure 12 is a curved surface that bulges toward the inside, which can form a certain slope at the first air outlet 18, thereby guiding the air outlet of the first air outlet 18 under the action of inertia. By setting the first side wall structure 11 to include a first curved side wall 111 convex toward the inside, and the distance between the first curved side wall 111 and the second side wall structure 12 gradually increases and then decreases along the direction from the connecting portion 13 to the extending portion 14, the volume of the annular air duct 16 can be increased while the air outlet is compressed and accelerated, so that the air outlet of the first air outlet 18 is blown out faster and can have a cooling effect. In addition, the outer surface of the first curved side wall 111 away from the second side wall structure 12 is a curved surface convex toward the inside, which can guide the air outlet of the first air outlet 18. After the air outlet of the first air outlet 18 is compressed and discharged, it rushes down the curved surface in the original direction under the action of inertia, driving the wind near the curved surface to rush down together, forming a waterfall-like pressurization effect, thereby improving the air outlet efficiency of the hanging fan 1.

[0057] Furthermore, the hanging fan 1 also includes a fixing member 30 connected to the housing 10 and used to fix the hanging fan 1 to an external object; the fixing member 30 includes a first fixing member 31 and a second fixing member 32, the first fixing member 31 being connected to the second side wall structure 12, and the second fixing member 32 being connected to the second side wall structure 12, and the first fixing member 31 and the second fixing member 32 being used to clamp two sides of the external object; in some embodiments, at least one of the first fixing member 31 and the second fixing member 32 is rotatably connected to the second side wall structure 12. It can be understood that the hanging fan 1 can be fixed (e.g., clamped) to an external object, such as the edge of a display, a tablet, or the push rod of a stroller, by the fixing member 30, to blow air to the human body. The clamping arrangement can free the human body's hands, making it convenient to use. In this embodiment, the first fixing member 31 is connected to the second side wall structure 12, and the second fixing member 32 is rotatably connected to the second side wall structure 12 and is spaced a certain distance from the first fixing member 31. When using the wall fan 1, the user can first place the first fixing member 31 of the wall fan 1 against an external object, such as a computer display screen. Figure 8 As shown, the first fixing member 31 can be first clamped in front of the computer monitor screen, and then the second fixing member 32 can be abutted against the back of the computer monitor screen, so that the first fixing member 31 and the second fixing member 32 can jointly abut (e.g., clamp) both sides of the computer monitor screen, thereby fixing the hanging fan 1 on the computer monitor screen. The second fixing member 32 is rotatably connected to the second side wall structure 12. By rotating the second fixing member 32 to change the distance between one end of the second fixing member 32 and the clamped external object, the external object can be conveniently clamped and fixed or removed from the external object. By setting the first fixing member 31 and the second fixing member 32, the hanging fan 1 can be fixed on external objects such as computers and tablets, which is convenient for users to use, expands the scope of use of the hanging fan 1, and provides a better user experience. At the same time, the first fixing member 31 and the second fixing member 32 clamp the two sides of the external object, which can increase the stability of the hanging fan 1 fixed to the external object, and ensure the stability and safety of the hanging fan 1 when working. In addition, at least one of the first fixing member 31 and the second fixing member 32 is rotatably connected to the second side wall structure 12, and the hanging fan 1 can be fixed and removed by rotating at least one of the first fixing member 31 and the second fixing member 32, which is convenient for users to use and provides a better user experience.

[0058] Understandably, the above Figures 1-8The hanging fan of the embodiment shown is described in detail. Among them, by setting the first air inlet 17 on at least one of the two side wall parts 121 arranged in sequence and opposite to each other along the length direction L of the second side wall structure 12, and storing the fan assembly 20 in the first receiving cavity 15 surrounded by the first side wall structure 11, the second side wall structure 12, the connecting portion 13 and the extending portion 14, and corresponding to the first air inlet 17, the fan assembly 20 can be made to blow the wind from the first air inlet 17 from at least one side of the two side wall parts 121 arranged in sequence and opposite to each other along the length direction L of the second side wall structure 12 of the hanging fan 1 to the annular air duct 16, and further from the first air outlet 1 8 blows out, thereby achieving the purpose of improving the air outlet efficiency of the hanging fan 1 and quickly cooling down. At the same time, the first side wall structure 11, the second side wall structure 12, the connecting portion 13 and the extending portion 14 surround a first receiving chamber 15 and an annular air duct 16 connected to the first receiving chamber 15. The first air inlet 17 and the first air outlet 18 are connected to the annular air duct 16, and the fan assembly 20 is arranged in the first receiving chamber 15, so that the fan assembly 20 is wrapped inside the shell 10, making the hanging fan 1 safer and quieter when in use, and the structure of the entire hanging fan 1 is more compact and simple, taking up less space, can be applied to a wider range of uses, and is easy to store and carry.

[0059] However, it should be noted that in Figures 1-8 In the illustrated embodiment, the first air inlet 17 is arranged on two side wall portions 121 of the second side wall structure 12 that are arranged in sequence and opposite to each other along the length direction L (such as two side wall portions 121 opposite to each other on the left and right). However, in a modified embodiment, the first air inlet of the hanging fan 1 can also be arranged at other positions of the shell 10 (such as two side wall portions 121 opposite to each other on the upper and lower sides of the second side wall structure 12, or on at least one of the connecting portion 13 and the extending portion). At this time, the energy gathering structure 22 of the fan assembly 20 is used to converge the wind of the fan 21 and provide it to the annular air duct 16.

[0060] The hanging fan 1 provided in the embodiment of the present invention, by arranging the fan 21 and the energy gathering structure 22 in the first receiving cavity 15 surrounded by the first side wall structure 11, the second side wall structure 12, the connecting portion 13 and the extending portion 14, can enable the fan 21 to blow the wind from the first air inlet 17 toward the energy gathering structure 22, and gather energy in the energy gathering cavity of the energy gathering structure 22, so that the gathered wind is blown toward the annular air duct 16 surrounded by the first side wall structure 11, the second side wall structure 12, the connecting portion 13 and the extending portion 14, and further blown out from the first air outlet 18, thereby improving the wind output of the hanging fan 1. For the purpose of efficiency and rapid cooling, at the same time, the first side wall structure 11, the second side wall structure 12, the connecting portion 13 and the extending portion 14 form a first receiving chamber 15 and an annular air duct 16 connected to the first receiving chamber 15, the first air inlet 17 and the first air outlet 18 are connected to the annular air duct 16, and the fan 21 is arranged in the first receiving chamber 15, so that the fan assembly 20 is wrapped inside the shell 10, so that the hanging fan 1 is safer and quieter when in use, and the structure of the entire hanging fan 1 is more compact and simple, and occupies less space, can be applied to a wider range of uses, and is easy to store and carry.

[0061] The specific structure and function of the energy-gathering structure 22 have been described in detail above and will not be repeated here.

[0062] The above is a detailed introduction to the hanging fan disclosed in the embodiment of the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the hanging fan of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A hanging fan, characterized in that: The hanging fan comprises: The shell comprises an annular first side wall structure, an annular second side wall structure sleeved on the periphery of the first side wall structure, a connecting portion connected between the first side wall structure and the second side wall structure, and an extending portion arranged opposite to the connecting portion, the first side wall structure, the second side wall structure, the connecting portion and the extending portion are further used to enclose a first receiving cavity and an annular air duct connected to the first receiving cavity, the annular first side wall structure encloses an air outlet channel, the annular air duct surrounds the outside of the air outlet channel in an annular shape, the shell further comprises a first air inlet and a first air outlet connected to the annular air duct, the second side wall structure has a length direction, the second side wall structure has two side wall parts arranged in sequence and opposite to each other along the length direction, the first air inlet is located on at least one of the two side wall parts; The fan assembly is located in the first receiving cavity and is used to correspond to the first air inlet and blow the air from the first air inlet to the annular air duct, and further blow the air to the air outlet channel through the first air outlet, and then blow it out through the air outlet channel.

2. The hanging fan according to claim 1, characterized in that: The number of the first storage chambers is at least two, and the two first storage chambers are respectively located at both ends of the annular air duct and are connected to the annular air duct. The first air inlet includes a first sub-air inlet and a second sub-air inlet respectively located on the two side wall parts, and the first sub-air inlet and the second sub-air inlet are respectively connected to the two first storage chambers. The number of the fan assemblies is at least two, and the two fan assemblies are respectively located in the two first storage chambers and correspond to the first sub-air inlet and the second sub-air inlet, respectively, and are used to blow the wind from the corresponding first sub-air inlet and the second sub-air inlet toward the annular air duct, and further blow it out from the first air outlet.

3. The hanging fan according to claim 2, characterized in that: There are multiple first sub-air inlets, and the multiple first sub-air inlets are arranged in a circle around a first preset center; the shape of each first sub-air inlet is a fan set relative to the first preset center; there are multiple second sub-air inlets, and the multiple second sub-air inlets are arranged in a circle around a second preset center; the shape of each second sub-air inlet is a fan set relative to the second preset center.

4. The hanging fan according to claim 1, wherein: The fan of the fan assembly is an axial flow fan, and the fan of the fan assembly includes a fan shaft and fan blades installed on the fan shaft, and the extension direction of the fan shaft is the same as the length direction.

5. The hanging fan according to claim 1, wherein: The fan assembly includes a fan and an energy-gathering structure, and the energy-gathering structure is used to gather the wind from the fan and provide it to the annular air duct.

6. The hanging fan according to claim 5, characterized in that: The energy gathering structure has an energy gathering cavity, a second air inlet and a second air outlet. The second air inlet and the second air outlet are respectively connected to the two ends of the energy gathering cavity. The fan is located between the first air inlet and the second air inlet or in the part of the energy gathering cavity close to the second air inlet. The fan is used to blow the wind from the first air inlet toward the energy gathering cavity for energy gathering, so that the wind after energy gathering is blown toward the annular air duct through the second air outlet, and further blown out from the first air outlet.

7. The hanging fan according to claim 6, characterized in that: The energy gathering structure includes a first annular shell, a second annular shell arranged on the periphery of the first annular shell, and at least two energy gathering connecting plates connected between the first annular shell and the second annular shell. The space between the first annular shell and the second annular shell forms the energy gathering cavity. At least two of the energy gathering connecting plates are located in the energy gathering cavity and divide the energy gathering cavity into multiple sub-energy gathering cavities. Each sub-energy gathering cavity is used to gather the wind from the second air inlet and blow the gathered wind out through the second air outlet.

8. The hanging fan according to claim 7, characterized in that: Each of the energy-gathering connecting plates extends along the arc direction from the second air inlet toward the second air outlet, so that each sub-energy-gathering cavity extends along the arc direction, and multiple arc directions of multiple sub-energy-gathering cavities protrude along the same preset clockwise direction; the rotation direction of the fan is the same as the preset clockwise direction.

9. The hanging fan according to claim 7, characterized in that: The second annular shell includes a first annular portion adjacent to the second air inlet, an intermediate annular portion connected to the first annular portion, and a second annular portion connected to the intermediate annular portion and close to the second air outlet. The fan is located in the space surrounded by the first annular portions, and the inner diameter of the first annular portion at one end away from the intermediate annular portion is larger than the inner diameter of the first annular portion close to the intermediate annular portion.

10. The hanging fan according to claim 7, characterized in that: The fan assembly further includes a driving motor. The first annular housing has a receiving space located inside, and the driving motor is located in the receiving space.

11. The hanging fan according to claim 1, characterized in that: The first side wall structure further forms a hollow air outlet channel, and the air from the first air outlet is accelerated and converged in the air outlet channel and then blown out from the side where the connecting portion is located.

12. The hanging fan according to claim 1, wherein: The extension portion is connected to one end of the second side wall structure away from the connecting portion, and the end of the extension portion away from the second side wall structure and the end of the first side wall structure away from the connecting portion respectively form the first air outlet, which is a slit-type air outlet that discharges air toward the side where the connecting portion is located.

13. The hanging fan according to claim 12, wherein: The first sidewall structure includes a first arcuate sidewall convex toward the inside, and the distance between the first arcuate sidewall and the second sidewall structure gradually decreases, then gradually increases, and then decreases along the direction from the connecting portion to the extending portion.

14. The hanging fan according to claim 13, wherein: The outer surface of the first arc-shaped side wall away from the second side wall structure is an arc-shaped surface convex toward the inside, which is used to guide the wind from the first air outlet toward the side where the connecting portion is located.

15. The hanging fan according to claim 1, wherein: The hanging fan also includes a fixing part connected to the shell, which is used to fix the hanging fan on an external object; the fixing part includes a first fixing part and a second fixing part, the first fixing part is connected to the second side wall structure, and the second fixing part is connected to the second side wall structure, and the first fixing part and the second fixing part are used to clamp both sides of the external object.

16. The hanging fan according to claim 15, characterized in that: At least one of the first fixing member and the second fixing member is rotatably connected to the second side wall structure.

17. A hanging fan, characterized in that: The hanging fan comprises: The housing comprises an annular first sidewall structure, an annular second sidewall structure sleeved around the first sidewall structure, a connecting portion connected between the first sidewall structure and the second sidewall structure, and an extending portion arranged opposite to the connecting portion, wherein the first sidewall structure, the second sidewall structure, the connecting portion, and the extending portion are further configured to enclose a first receiving cavity and an annular air duct communicating with the first receiving cavity, the annular first sidewall structure enclosing an air outlet channel, the annular air duct being annularly arranged around the outside of the air outlet channel, and the housing further comprising a first air inlet and a first air outlet communicating with the annular air duct; The fan assembly is located in the first storage cavity and includes a fan and an energy-gathering structure. The energy-gathering structure is used to gather the wind from the fan and provide it to the annular air duct, and further blow it toward the air outlet channel through the first air outlet, and then blow it out through the air outlet channel.

18. The hanging fan according to claim 17, wherein: The energy gathering structure has an energy gathering cavity, a second air inlet and a second air outlet. The second air inlet and the second air outlet are respectively connected to the two ends of the energy gathering cavity. The fan is located between the first air inlet and the second air inlet or in the part of the energy gathering cavity close to the second air inlet. The fan is used to blow the wind from the first air inlet toward the energy gathering cavity for energy gathering, so that the wind after energy gathering is blown toward the annular air duct through the second air outlet, and further blown out from the first air outlet.

19. The hanging fan according to claim 18, characterized in that: The energy gathering structure includes a first annular shell, a second annular shell arranged on the periphery of the first annular shell, and at least two energy gathering connecting plates connected between the first annular shell and the second annular shell. The space between the first annular shell and the second annular shell forms the energy gathering cavity. At least two of the energy gathering connecting plates are located in the energy gathering cavity and divide the energy gathering cavity into multiple sub-energy gathering cavities. Each sub-energy gathering cavity is used to gather the wind from the second air inlet and blow the gathered wind out through the second air outlet.

20. The hanging fan according to claim 19, wherein: Each of the energy-gathering connecting plates extends along the arc direction from the second air inlet toward the second air outlet, so that each sub-energy-gathering cavity extends along the arc direction, and multiple arc directions of multiple sub-energy-gathering cavities protrude along the same preset clockwise direction; the rotation direction of the fan is the same as the preset clockwise direction.

21. The hanging fan according to claim 19, wherein: The second annular shell includes a first annular portion adjacent to the second air inlet, an intermediate annular portion connected to the first annular portion, and a second annular portion connected to the intermediate annular portion and close to the second air outlet. The fan is located in the space surrounded by the first annular portions, and the inner diameter of the first annular portion at one end away from the intermediate annular portion is larger than the inner diameter of the first annular portion close to the intermediate annular portion.

22. The hanging fan according to claim 19, wherein: The fan assembly further includes a driving motor. The first annular housing has a receiving space located inside, and the driving motor is located in the receiving space.

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