CN213206049U - Bladeless fan - Google Patents

Abstract

An embodiment of the utility model provides a bladeless fan, including fan head, connecting rod and the control part of can buckling. The fan head comprises a shell and a fan, the shell is provided with an accommodating cavity, an air inlet and an air outlet, the air inlet and the air outlet are communicated with the accommodating cavity, and the fan is accommodated in the accommodating cavity and used for sucking air from the air inlet and blowing the air out of the air outlet. The connecting rod of can buckling includes relative first link and second link, and first link is connected with the casing. The control part is connected to the second connecting end. The utility model provides a bladeless fan includes the fan head, can buckle connecting rod and control part, and the fan head includes casing and fan, and the casing is equipped with accepts chamber, air intake and air outlet, and the fan is acceptd in acceping the intracavity to be used for inhaling the air from the air intake and blow off from the air outlet, can buckle the connecting rod and connect between casing and control part, the utility model discloses a bladeless fan simple structure does benefit to the user and controls, and it is effectual to supply air.

Description

Bladeless fan

Technical Field

The utility model relates to a fan technical field particularly, relates to a bladeless fan.

Background

Conventional fans, such as household fans, typically include blades that are rotated at high speeds to create a movement and circulation of the airflow. Such fans typically have exposed blades or shrouds that cover the blades, and there is a certain touch safety hazard to the young child either with exposed blades or with shrouds.

The bladeless fan is also called an air doubling machine and can generate natural and continuous cool wind. Compared with the traditional fan, the bladeless fan has a small air outlet, and the generated air flow is more stable and high-speed. The bladeless fan has no fan blades, and is safer to use. However, most bladeless fans in the existing market have technical problems of complex structure, poor air supply effect and the like, and need to be further improved.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the utility model is to provide a bladeless fan to solve above-mentioned problem. The embodiment of the utility model provides an above-mentioned purpose is realized through following technical scheme.

An embodiment of the utility model provides a bladeless fan, including fan head, connecting rod and the control part of can buckling. The fan head comprises a shell and a fan, the shell is provided with an accommodating cavity, an air inlet and an air outlet, the air inlet and the air outlet are communicated with the accommodating cavity, and the fan is accommodated in the accommodating cavity and used for sucking air from the air inlet and blowing the air out of the air outlet. The connecting rod of can buckling includes relative first link and second link, and first link is connected with the casing. The control part is connected to the second connecting end and is used for controlling the fan head to work and/or supplying power to the fan head.

In one embodiment, the casing includes a first casing and a second casing, the first casing and the second casing define an accommodating cavity, the first connecting end is connected to the first casing and/or the second casing, the fan head further includes a flow guide member, the flow guide member is connected to the first casing or the second casing and is located in the accommodating cavity, and the flow guide member is used for enclosing with the first casing and/or the second casing to form an air duct.

In an embodiment, the air guide piece comprises a first air deflector, the first shell comprises a first mounting plate, a first end plate located at the first end of the first mounting plate, a second end plate located at the second end of the first mounting plate, and a first side plate connected with the first side of the first end plate and the first side of the second end plate, the first end plate is arc-shaped, and the first air deflector is formed by extending the second side of the first end plate to the first side plate and forms a first accommodating cavity for accommodating the fan with the first end plate in an enclosing manner.

In an embodiment, the air guiding element further includes a second air guiding plate, the second end plate is arc-shaped, the second air guiding plate is formed by extending a second side of the second end plate towards the first side plate and surrounds the second end plate to form a second accommodating cavity, the fan head further includes an air guiding cylinder, the air guiding cylinder is arranged in the second accommodating cavity and forms an annular air duct with the second end plate and the second air guiding plate, and the air outlet is an annular air outlet arranged on the first shell or the second shell and communicated with the annular air duct.

In an embodiment, the first air deflector and the second air deflector are both arc-shaped, one end of the first air deflector extending towards the first side plate is connected with one end of the second air deflector extending towards the first side plate to form a connecting portion, a communicating port communicating the first accommodating cavity with the second accommodating cavity is formed between the connecting portion and the first side plate, and the communicating port is communicated with the annular air duct.

In one embodiment, the volume of the first housing chamber is greater than the volume of the second housing chamber; and/or the radius of the circle where the first end plate is located is larger than that of the circle where the second end plate is located; and/or the radius of the circle where the first end plate is located is the same as that of the circle where the first air deflector is located, and the radius of the circle where the second end plate is located is the same as that of the circle where the second air deflector is located.

In one embodiment, an annular air guide is arranged in the annular air duct, and the distance between the top surface of the annular air guide and the air outlet is gradually reduced from one end close to the communication port to the other end of the annular air guide.

In one embodiment, the control part comprises a holding shell connected to the second connecting end, the bladeless fan further comprises a wire and a power supply, the power supply is contained in the holding shell, the bendable connecting rod is further provided with a wire mounting hole, the wire is mounted in the wire mounting hole, and the wire is electrically connected with the power supply and the fan.

In one embodiment, the control portion further includes a control button disposed on the holding housing and electrically connected to the wire.

In one embodiment, the grip housing includes a first clamping portion connected to the second connection end and a second clamping portion rotatably mounted to the first clamping portion.

Compared with the prior art, the utility model provides a bladeless fan includes the fan head, can buckle connecting rod and control part, and the fan head includes casing and fan, and the casing is equipped with accepts chamber, air intake and air outlet, and the fan is acceptd in acceping the intracavity to be used for sucking the air from the air intake and blow off from the air outlet, can buckle the connecting rod and connect between casing and control part, the utility model discloses a bladeless fan simple structure does benefit to the user and controls, and air supply is effectual.

These and other aspects of the invention will be apparent from and elucidated with reference to the embodiments described hereinafter.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a bladeless fan according to an embodiment of the present invention.

Fig. 2 is a partially disassembled schematic view of a bladeless fan according to an embodiment of the present invention.

Fig. 3 is a partially disassembled schematic view of a bladeless fan according to another view angle provided by the present invention.

Fig. 4 is a cross-sectional view of a bladeless fan according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a first housing (including a fan) according to an embodiment of the present invention.

Detailed Description

In order to facilitate understanding of the embodiments of the present invention, the embodiments of the present invention will be described more fully below with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1, an embodiment of the present invention provides a bladeless fan 1, including a fan head 10, a bendable connecting rod 20 and a control portion 30, wherein the bendable connecting rod 20 is connected between the fan head 10 and the control portion 30.

Referring to fig. 1, 2 and 3, the fan head 10 includes a housing 11 and a fan 13. The fan 13 includes a plurality of rotary blades 131, and the fan 13 may generate natural continuous wind by the rotation of the rotary blades 131. The housing 11 may be used to house the fan 13 to reduce the influence of dust or moisture on the fan 13.

The housing 11 is provided with a receiving cavity 111, an air inlet 113 and an air outlet 115. The accommodating cavity 111 may be used for accommodating the fan 13 and the like; the air inlet 113 may be used for air inlet, that is, air is sucked into the accommodating cavity 111 from the air inlet 113; the outlet 115 may be used for discharging air, that is, air sucked into the receiving cavity 111 may be accelerated to flow out from the outlet 115.

The air inlet 113 is communicated with the accommodating cavity 111. In this embodiment, the air inlet 113 and the air outlet 115 are disposed on the opposite sides of the housing 11 and are staggered with each other, wherein the air inlet 113 and the air outlet 115 are disposed on the opposite sides of the housing 11 to realize convection of air, so as to increase smoothness of air inlet and improve the air supply effect of the bladeless fan 1. The air inlet 113 and the air outlet 115 are staggered, air can be guided to the air outlet 115 from the air inlet 113 through the air guide effect, and the air can flow in the air guide process, so that the air supply effect of the bladeless fan 1 is improved. In other embodiments, the air inlet 113 and the air outlet 115 may also be disposed on the same side of the housing 11, or two adjacent side walls, and the air inlet 113 and the air outlet 115 may also be opposite. In this embodiment, the air inlet 113 includes a plurality of air inlet holes 1131, the plurality of air inlet holes 1131 may be distributed in a circular divergent shape, so as to reduce dust or foreign matters from entering the accommodating cavity 111 through the air inlet holes 1131 to affect the operation of the fan 13, and the air inlet holes 1131 may correspond to the blades of the fan 13, so as to facilitate the air entering the accommodating cavity 111 through the air inlet holes 1131. In other embodiments, a filter screen may be further disposed at the air inlet 113 to further reduce dust entering the accommodating cavity 111 through the air inlet 113. In other embodiments, the air inlet openings 1131 can also be distributed in a mesh or other pattern.

The outlet 115 is also in communication with the receiving cavity 111. The air outlet 115 is disposed in the first casing 117 or the second casing 119, and is substantially annular. In this embodiment, the air outlet 115 includes a plurality of air outlet holes 1151, each air outlet hole 1151 is substantially concentric and circular-arc-shaped, the plurality of air outlet holes 1151 are uniformly annularly disposed on the housing 11, and since the air outlet 115 is communicated with the accommodating cavity 111, the air in the accommodating cavity 111 can flow out through the plurality of air outlet holes 1151 which are uniformly distributed, so that the uniformity of the air outlet of the bladeless fan 1 can be improved. In other embodiments, the air outlets 115 may also be disposed in the housing 11 in an elliptical shape, an oblong shape, or a rectangular shape, and may be specifically set according to actual requirements.

Referring to fig. 2 and 3, the housing 11 includes a first housing 117 and a second housing 119, and the first housing 117 and the second housing 119 have substantially the same shape, i.e., substantially elliptical frame structures. The first housing 117 and the second housing 119 are fastened together to define a receiving cavity 111.

Specifically, the first housing 117 includes a first connecting side plate 1171 and a first mounting plate 1173, wherein the first connecting side plate 1171 is a closed enclosure-like structure, the first connecting side plate 1171 is spaced from the fan 13, and a gap between the first connecting side plate 1171 and the fan 13 is gradually increased along the rotating direction of the rotary blade 131, so that the air can be guided to more smoothly and orderly travel along the first connecting side plate 1171, which is helpful for improving the air supply effect of the bladeless fan 1. The first mounting plate 1173 is generally an oblong plate-like structure and may be provided with the intake vent 113, and the first mounting plate 1173 may define with the second housing 119 a receiving cavity 111.

The first connecting side plate 1171 includes a first end plate 1172, a first side plate 1176, and a second end plate 1178. The first end plate 1172 is opposite to the second end plate 1178, the first end plate 1172 is located at the first end of the first mounting plate 1173, the second end plate 1178 is located at the second end of the first mounting plate 1173, the first end is the end for mounting the fan 13, the second end is the end far away from the fan 13, the first end plate 1172 and the second end plate 1178 are both arc-shaped, and the radius of the circle where the first end plate 1172 is located is larger than that of the circle where the second end plate 1178 is located. In the present embodiment, the gap between the first end plate 1172 and the blower 13 is gradually increased in the rotational direction of the rotary blade 131 to blow the air flow from one side of the first end plate 1172 to the other side. In this embodiment, the first end plate 1172 and the second end plate 1178 are each an arcuate plate-like structure. In other embodiments, the first end plate 1172 (second end plate 1178) may also be an arch bridge structure having an arcuate inner surface, may be other shapes having an arcuate inner surface, or the first end plate 1172 (second end plate 1178) may also be partially arcuate, partially other shapes.

A first side plate 1176 connects a first side of the first end plate 1172 to a first side of the second end plate 1178, wherein the first side is the right side of the first connecting side plate 1171 from the perspective shown in fig. 2.

In this embodiment, the first connecting side plate 1171 further comprises a second side plate 1174, the second side plate 1174 being opposite the first side plate 1176. The second side plate 1174 is connected to the first end plate 1172 and the second side and second end plates 1178

A second side, wherein the second side is the left side of the first connecting side plate 1171 from the perspective shown in fig. 2. In other embodiments, the first connecting side panel 1171 may also not include the second side panel 1174.

Referring to fig. 2, 3 and 4, the first mounting plate 1173 further includes an annular air guide 1177, and the annular air guide 1177 is disposed in an annular air duct, wherein the annular air duct is mainly surrounded by the second end plate 1178. The annular air guide 1177 is located between the fan 13 and the outlet 115 so that air entering from the inlet 113 can pass along the annular air guide 1177 into the outlet 115 and out of the outlet 115. Specifically, the annular air guide 1177 is connected to the first mounting plate 1173, and the distance between the top surface of the annular air guide 1177 and the air outlet 113 gradually decreases from one end close to the air inlet 113 to the other end thereof, so that the air entering from the air inlet 113 is guided to the air outlet 115 more smoothly and orderly, the turbulence of the air flow is reduced, and the air supply effect of the bladeless fan 1 is improved.

The second housing 119 includes a second connecting side plate 1191 and a second mounting plate 1193, the second mounting plate 1193 is parallel to and opposite to the first mounting plate 1173, the second mounting plate 1193 has the same shape as the first mounting plate 1173, and the second mounting plate 1193 is provided with an air outlet 115. The second connection side plate 1191 and the first connection side plate 1171 have the same shape, and the second connection side plate 1191 is opposite to the first connection side plate 1171, wherein relative means that the second connection side plate 1191 and the first connection side plate 1171 can be in contact with each other or the gap between the two is uniform.

The fan 13 is accommodated in the accommodating chamber 111, and is used for sucking air from the air inlet 113 and blowing out air from the air outlet 115. Specifically, the blower 13 may be fixedly mounted on the first mounting plate 1173, and since the first mounting plate 1173 is provided with the air inlet 113, the area near the air inlet 113 may be formed with negative pressure by the rotation of the rotary blade 131, and the air near the housing 11 may enter the accommodating chamber 111 through the air inlet 113 under the action of the atmospheric pressure. In this embodiment, the fan 13 is disposed at the air inlet 113, which is beneficial to increase the negative pressure near the air inlet 113, so as to facilitate the air entering the accommodating cavity 111 through the air inlet 113. The fan 13 in this embodiment is a centrifugal wind wheel, which is helpful to increase the wind inlet amount and reduce the wind outlet pressure, and improves the wind supply efficiency of the bladeless fan 1.

The fan head 10 further comprises a flow guide 15. In the present embodiment, the flow guide 15 has a substantially wave-shaped plate-like structure. In other embodiments, the deflector 15 may also be a block structure having a wavy surface, wherein the wavy surface is located in the receiving cavity 111. The flow guiding element 15 is connected to the first casing 117 or the second casing 119 and located in the accommodating cavity 111, and specifically, the flow guiding element 15 is connected to the first connecting side plate 1171 and the first mounting plate 1173, so that the accommodating cavity 111 can be separated by the flow guiding element 15, that is, the volume of an air circulation area is reduced, which is beneficial to increasing the air flow rate and improving the air outlet effect. In this embodiment, the air guiding member 15 is used to form an air passage by enclosing with the first housing 117 and/or the second housing 119. Specifically, the air inlet 113 and the air outlet 115 are disposed on the same side of the air guide 15, so that air entering from the air inlet 113 can flow out of the air outlet 115 through the air duct, thereby increasing the air flow rate.

Referring to fig. 2 and 5, the air guiding member 15 includes a first air guiding plate 151 and a second air guiding plate 152. The first air guiding plate 151 is arc-shaped. In the present embodiment, the first wind deflector 151 and the second wind deflector 152 are both arc-shaped plate structures. In other embodiments, the first wind deflector 151 (the second wind deflector 152) may also be an arch bridge structure having an arc-shaped inner surface, or may be other shapes having an arc-shaped inner surface. The first air guiding plate 151 is formed by extending the second side of the first end plate 1172 toward the first side plate 1176, and encloses with the first end plate 1172 to form a first accommodating cavity 1112 for accommodating the fan 13. The first air guiding plate 151 is connected between the first end plate 1172 and the second air guiding plate 152, and the radius of the circle where the first air guiding plate 151 is located is the same as the radius of the circle where the first end plate 1172 is located, that is, the first accommodating cavity 1112 is a semi-closed circular cavity structure. The fan 13 is disposed on the inner side of the first air guiding plate 151, where the inner side refers to a semi-closed area surrounded by the first air guiding plate 151, that is, an area near the center of the arc cross section of the first air guiding plate 151, and the fan 13 is disposed on the inner side of the first air guiding plate 151, so as to intensively guide the airflow. The gap between the first air guiding plate 151 and the fan 13 is smaller than the gap between the first end plate 1172 and the fan 13, that is, the fan 13 is closer to the first air guiding plate 151 than the first connecting side plate 1171, that is, the fan 13 is eccentrically disposed in the first accommodating cavity 1112. Specifically, in the present embodiment, along the rotation direction of the rotating blade 131, the gap between the first air deflector 151 and the fan 13 gradually increases, as shown in fig. 5, so that the air can be squeezed, the air flow is accelerated to the air outlet 115, and the air outlet effect is improved.

The second air deflection 152 is also curved. The second air guiding plate 152 is formed by extending a second side of the second end plate 1178 toward the first side plate 1176, and encloses with the second end plate 1178 to form a second accommodating cavity 1114. The second air deflection 152 is coupled between the second end plate 1178 and the first air deflection 151. The radius of the circle of the second air deflector 152 is the same as the radius of the circle of the second end plate 1178, that is, the second accommodating cavity 1114 is also a semi-closed circular cavity structure, and the volume of the second accommodating cavity 1114 is smaller than that of the first accommodating cavity 1112, so that when the airflow enters the second accommodating cavity 1114 from the first accommodating cavity 1112, an extruded effect can be formed, the air flow is accelerated, and the air outlet effect is improved.

In this embodiment, one end of the first air deflector 151 extending towards the first side plate 1176 is connected to one end of the second air deflector 152 extending towards the first side plate 1176 to form a connection portion 1175, a communication port 1179 communicating the first accommodating cavity 1112 with the second accommodating cavity 1114 is formed between the connection portion 1175 and the first side plate 1176, the communication port 1179 is communicated with the annular air duct, and the width of the communication port 1179 is smaller than the width between the first side plate 1176 and the second side plate 1174, so that the width of the air duct can be further reduced, and the air flow is squeezed.

Referring to fig. 2, 4 and 5, the fan head 10 further includes an air duct 17, the air duct 17 is cylindrical, and the air duct 17 is disposed inside the second air guiding plate 152 and located in the second accommodating cavity 1114. An annular air duct is formed between the air duct 17, the second end plate 1178 and the second air duct 152, wherein the annular air duct is communicated with the air outlet 115. Specifically, in this embodiment, the circumference of the air duct 17 may surround the plurality of air outlet holes 1151, so that the air duct 17 may guide the air to the air outlet holes 1151, and the air duct 17 may further guide the air flowing into the accommodating cavity 111, so that the air can more uniformly flow out from the air outlet holes 1151, thereby improving the uniformity of the air outlet of the bladeless fan 1.

In the present embodiment, the air duct 17 includes a first air duct 171 and a second air duct 172, and both the first air duct 171 and the second air duct 172 are cylindrical. The first air duct 171 is connected to the first mounting plate 1173, the first air duct 171 includes a first outer peripheral surface 1711, and an annular air duct is formed between the first outer peripheral surface 1711 and the first connecting side plate 1171, so that air can flow out from the air outlet 115 through the annular air duct, and air outlet is uniform. The second air guide tube 172 is connected to the second mounting plate 1193, the second air guide tube 172 may be in contact with the first air guide tube 171, and the first air guide tube 171 and the second air guide tube 172 may be bonded by a sealant or the like to prevent air from flowing out between the first air guide tube 171 and the second air guide tube 172. The second air guiding duct 172 includes a second outer circumferential surface 1721, and the second outer circumferential surface 1721 is connected with the first outer circumferential surface 1711 in a smooth transition manner, so that the smoothness of air flowing can be increased, and the air can flow out of the air outlet 115 through the first outer circumferential surface 1711 and the second outer circumferential surface 1721. In other embodiments, the air duct 17 may be an integral structure, and may be integrally injection molded with the first casing 117 or the second casing 119.

Specifically, the annular air duct is formed by enclosing the second end plate 1178, the second air deflector 152 and the air duct 17, and the annular air guide 1177 is disposed in the annular air duct.

Referring to fig. 1 and 4, the bendable connecting rod 20 can be bent when a force is applied to the bendable connecting rod 20, so that the fan head 10 can be oriented in a predetermined direction, and the bendable connecting rod 20 can be wound on a rod-shaped structure or other objects by bending. The bendable connecting rod 20 includes a first connecting end 21 and a second connecting end 22 opposite to each other, wherein the first connecting end 21 is connected to the first shell 117 and/or the second shell 119, that is, the first connecting end 21 can be connected to one of the first shell 117 and the second shell 119, and can also be connected to both the first shell 117 and the second shell 119. The second connection terminal 22 is connected to the control section 30. The bendable connecting rod 20 can be a combination of a sheath and a metal, wherein the sheath can be wrapped on the metal, the sheath can be made of PU material, and the metal can be copper or aluminum and other metals with better ductility.

The bendable connecting rod 20 is further provided with a wire mounting hole 23, and the wire mounting hole 23 extends along the length direction of the bendable connecting rod 20 and can be used for mounting a wire 40.

Referring to fig. 1, the control portion 30 may be configured to control the operation of the fan head 10 and/or supply power to the fan head 10 to control the air outlet of the fan head 10, such as controlling whether the fan head is used for air outlet and controlling the magnitude of wind power. The control section 30 includes a grip housing 32 and control keys 34. A grip housing 32 is connected to the second connection end 22. In the present embodiment, the grip housing 32 has a generally oblong shell structure, which is convenient for a user to hold with one hand, so that the user can carry the grip housing with him or her. The control button 34 is disposed on the holding case 32, and the user can control the air outlet by pressing the control button 34.

With continued reference to fig. 1 and 2, in one embodiment, the grip housing 32 may also be configured as a retaining clip structure. In particular, the grip housing 32 comprises a first holding portion 321 and a second holding portion 322, the first holding portion 321 being connected to the second connection end 22, and the control button 34 may be provided. The second clamping portion 322 is rotatably mounted to the first clamping portion 321, and the bladeless fan 1 can be fixed at a desired position, such as a stroller, by rotating the second clamping portion 322.

With continued reference to fig. 1, 2 and 4, the bladeless fan 1 further includes a wire 40 and a power source 50. The power supply 50 is housed in the grip case 32, and the power supply 50 can supply power to the blower 13. The wire 40 is installed in the wire installation hole 23 and electrically connected between the power supply 50 and the fan 13 to supply power from the power supply 50 to the fan 13 to rotate the fan 13. The wire 40 is also electrically connected to the control button 34, so that the control button 34 can control the on/off and the rotation speed of the fan 13, thereby controlling whether to supply air and the wind power.

To sum up, the utility model provides a bladeless fan 1 includes fan head 10, bendable connecting rod 20 and control part 30, and fan head 10 includes casing 11 and fan 13, and casing 11 is equipped with accepts chamber 111, air intake 113 and air outlet 115, and fan 13 is acceptd in accepting chamber 111 to be used for inhaling the air from air intake 113 and blow off from air outlet 115, and bendable connecting rod 20 is connected between casing 11 and control part 30, the utility model discloses bladeless fan 1 simple structure does benefit to the user and controls, and the air supply is effectual.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A bladeless fan, comprising:

the fan head comprises a shell and a fan, the shell is provided with an accommodating cavity, an air inlet and an air outlet, the air inlet and the air outlet are communicated with the accommodating cavity, and the fan is accommodated in the accommodating cavity and used for sucking air from the air inlet and blowing the air out from the air outlet;

the bendable connecting rod comprises a first connecting end and a second connecting end which are opposite, and the first connecting end is connected with the shell; and

and the control part is connected to the second connecting end and is used for controlling the fan head to work and/or supplying power to the fan head.

2. The bladeless fan of claim 1, wherein the housing comprises a first housing and a second housing, the first housing and the second housing define the receiving cavity, the first connecting end is connected to the first housing and/or the second housing, the fan head further comprises a flow guide member, the flow guide member is connected to the first housing or the second housing and located in the receiving cavity, and the flow guide member is used for enclosing with the first housing and/or the second housing to form a ventilation channel.

3. The bladeless fan of claim 2, wherein the air guide member comprises a first air guide plate, the first housing comprises a first mounting plate, a first end plate located at a first end of the first mounting plate, a second end plate located at a second end of the first mounting plate, and a first side plate connecting a first side of the first end plate and a first side of the second end plate, the first end plate is arc-shaped, and the first air guide plate is formed by extending a second side of the first end plate to the first side plate and enclosing the first end plate to form a first accommodating cavity for accommodating the fan.

4. The bladeless fan of claim 3, wherein the air guide member further comprises a second air guide plate, the second end plate is arc-shaped, the second air guide plate is formed by extending a second side of the second end plate towards the first side plate and is enclosed with the second end plate to form a second accommodating cavity, the fan head further comprises an air guide cylinder, the air guide cylinder is arranged in the second accommodating cavity and forms an annular air duct with the second end plate and the second air guide plate, and the air outlet is an annular air outlet arranged on the first casing or the second casing and communicated with the annular air duct.

5. The bladeless fan of claim 4, wherein the first air deflector and the second air deflector are both arc-shaped, one end of the first air deflector extending towards the first side plate is connected with one end of the second air deflector extending towards the first side plate to form a connecting portion, a communication port communicating the first accommodating cavity with the second accommodating cavity is formed between the connecting portion and the first side plate, and the communication port is communicated with the annular air duct.

6. The bladeless fan of claim 4, wherein the volume of the first housing chamber is greater than the volume of the second housing chamber; and/or the radius of the circle where the first end plate is located is larger than that of the circle where the second end plate is located; and/or the radius of the circle where the first end plate is located is the same as that of the circle where the first air deflector is located, and the radius of the circle where the second end plate is located is the same as that of the circle where the second air deflector is located.

7. The bladeless fan according to claim 5, wherein an annular air guide is arranged in the annular air duct, and a distance between a top surface of the annular air guide and the air outlet is gradually reduced from one end close to the communication port to the other end of the annular air guide.

8. The bladeless fan according to any one of claims 1-7, wherein the control portion comprises a grip housing connected to the second connection end, the bladeless fan further comprises a wire and a power source, the power source is contained in the grip housing, the bendable connecting rod is further provided with a wire mounting hole, the wire is mounted in the wire mounting hole, and the wire is electrically connected with the power source and the fan.

9. The bladeless fan of claim 8, wherein the control portion further comprises a control button disposed on the grip housing and electrically connected to the wire.

10. The bladeless fan of claim 8, wherein the grip housing comprises a first clamping portion connected to the second connection end and a second clamping portion rotatably mounted to the first clamping portion.

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