CN106246602B

CN106246602B - Machine head for bladeless fan and bladeless fan

Info

Publication number: CN106246602B
Application number: CN201610878278.8A
Authority: CN
Inventors: 罗伟锦; 邵琛
Original assignee: Midea Group Co Ltd; GD Midea Environment Appliances Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Environment Appliances Manufacturing Co Ltd
Priority date: 2016-09-30
Filing date: 2016-09-30
Publication date: 2021-09-21
Anticipated expiration: 2036-09-30
Also published as: CN106246602A

Abstract

The invention discloses a machine head for a bladeless fan and the bladeless fan, wherein the machine head for the bladeless fan comprises a first air channel piece and a second air channel piece, the first air channel piece is connected with the second air channel piece to form an air channel, the first air channel piece is provided with an air outlet communicated with the air channel, spacing ribs are arranged in the air outlet to divide the air outlet into a plurality of air ports, and the spacing ribs and the first air channel piece are of an integrally formed structure. In the machine head for the bladeless fan, the spacing ribs and the first air duct piece are of an integrally formed structure, so that a plurality of air openings can be more easily uniform, the resistance of air flow is reduced, the noise of the bladeless fan is reduced, and the user experience is improved. The bladeless fan comprises the handpiece for the bladeless fan.

Description

Machine head for bladeless fan and bladeless fan

Technical Field

The invention relates to the field of domestic electric appliances, in particular to a machine head for a bladeless fan and the bladeless fan.

Background

In the related art, the phenomenon of uneven air outlet is easy to occur when the air speed and the air volume are increased by the machine head of the bladeless fan, and the air outlet noise is larger due to larger air outlet airflow resistance, so that the user experience is influenced.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention needs to provide a machine head for a bladeless fan and the bladeless fan.

The machine head for the bladeless fan comprises a first air channel piece and a second air channel piece, wherein the first air channel piece is connected with the second air channel piece to form an air channel, the first air channel piece is provided with an air outlet communicated with the air channel, spacing ribs are arranged in the air outlet to divide the air outlet into a plurality of air ports, and the spacing ribs and the first air channel piece are of an integrally formed structure.

In the machine head for the bladeless fan, the spacing ribs and the first air duct piece are of an integrally formed structure, so that a plurality of air openings can be more easily uniform, the resistance of air flow is reduced, the noise of the bladeless fan is reduced, and the user experience is improved.

In one embodiment, the first air duct piece includes a first connecting portion located on one side of the air outlet and connected to the spacing rib, and the second air duct piece is connected to the first connecting portion in a welded manner.

In one embodiment, the first air duct piece comprises a second connecting portion on one side far away from the air outlet, and the second air duct piece is connected with the second connecting portion in a welding mode. In one embodiment, the head for a bladeless fan has an inverted U-shape, the first air duct member is an inner member, and the second air duct member is an outer member.

In one embodiment, the head for a bladeless fan has an inverted U-shape, the first air duct member is an outer member, and the second air duct member is an inner member.

In one embodiment, the air outlet is opened at one side of the first air duct member.

In one embodiment, a routing space is provided within the air duct, the routing space being air-tightly spaced from the air duct.

In one embodiment, a partition plate is arranged on the inner surface of the first air duct piece, the partition plate surrounds a wire slot, and the second air duct piece is connected with the partition plate in a sealing mode so as to form the wire routing space with the wire slot.

In one embodiment, the partition plate and the first air duct member are of an integrally formed structure.

In one embodiment, the second air duct member and the partition plate are hermetically connected by welding.

In one embodiment, the first air duct piece is connected with the second air duct piece to form an air outlet portion and an air inlet portion, the air duct is arranged in the air outlet portion and the air inlet portion, the air outlet portion is arranged at the air outlet portion, the air inlet portion is connected to one end of the air outlet portion, the air inlet portion is arranged at the air inlet portion, and the air duct is communicated with the air inlet and the air outlet.

In one embodiment, a positioning groove is formed on an inner side surface of the air inlet, and a positioning piece is arranged in the positioning groove.

In one embodiment, the end surface of the air inlet part is formed with an annular mounting groove for placing a sealing ring.

In one embodiment, the inner surface of the first air duct member is provided with a flow guide device having a stepped structure for guiding the air flow to the air outlet.

In one embodiment, the air outlet part comprises an arc-shaped flow guide piece arranged in the air duct, and the arc-shaped flow guide piece is connected to the air inlet side of the air duct.

The bladeless fan in the embodiment of the invention comprises a power system and a machine head for the bladeless fan in any one of the above embodiments, wherein the power system is used for generating high-pressure air flow, and the machine head is connected with the power system, is used for receiving the high-pressure air flow and sprays the high-pressure air flow through the air duct and the air outlet.

In the bladeless fan provided by the embodiment of the invention, the spacing ribs and the first air duct piece are of an integrally formed structure, so that a plurality of air ports are more easily uniform, the resistance of air flow is further reduced, the noise of the bladeless fan is reduced, and the user experience is improved.

In one embodiment, the bladeless fan further comprises a base and a ventilation tube connecting the base and the handpiece, the base housing the power system.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a head for a bladeless fan according to an embodiment of the present invention.

Fig. 2 is an exploded schematic view of a head for a bladeless fan according to an embodiment of the present invention.

Fig. 3 is an enlarged schematic view of a portion of a head i for the bladeless fan of fig. 2.

Fig. 4 is an enlarged schematic view of a portion of the head ii for the bladeless fan of fig. 2.

Fig. 5 is a schematic perspective sectional view of a head for a bladeless fan according to an embodiment of the present invention.

Fig. 6 is an enlarged schematic view of a portion of a head iii for the bladeless fan of fig. 5.

Fig. 7 is an enlarged schematic view of a head iv portion for the bladeless fan of fig. 5.

Fig. 8 is a schematic view of a part of functional modules of a head for a bladeless fan according to an embodiment of the present invention.

Fig. 9 is a partial perspective view of a head for a bladeless fan according to an embodiment of the present invention.

Fig. 10 is another partial perspective view of a handpiece for a bladeless fan according to an embodiment of the present invention.

Fig. 11 is an enlarged schematic view of a portion of the head v for the bladeless fan of fig. 10.

Fig. 12 is an enlarged schematic view of a section vi of the head for a bladeless fan of fig. 10.

Fig. 13 is a partial perspective view of a bladeless fan according to an embodiment of the present invention.

FIG. 14 is a schematic cross-sectional view of a power system for a bladeless fan according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1 to 7, a head 10 for a bladeless fan according to an embodiment of the present invention includes a first air duct member 12 and a second air duct member 14. The first air duct member 12 is connected to the second air duct member 14 to form an air duct 16. The first air duct 12 is opened with an air outlet 121 communicated with the air duct 16. The air outlet 121 is provided with a spacer rib 122 to divide the air outlet 121 into a plurality of air ports 123. The spacing rib 122 and the first air duct member 12 are integrally formed.

In the machine head 10 for the bladeless fan according to the embodiment of the present invention, the spacing rib 122 and the first air duct 12 are integrally formed, so that the plurality of air ports 123 are more easily uniform, thereby reducing resistance of air flow, reducing noise of the bladeless fan, and improving user experience.

Specifically, in one example, the first air duct member 12 may be formed of plastic. When the first air duct member 12 is manufactured, the insert may be placed in a position corresponding to the air inlet 123 in the cavity, and an insert space is formed between two adjacent inserts. When the molding material is injected into the mold cavity, the molding material is filled into the sub-spaces, after the molding material is cooled and demolded, the positions where the sub-spaces are originally placed form the air ports 123, and the sub-spaces form the spacing ribs 122. Therefore, by designing the parameters of the insert intervals, the sizes of the formed air ports 123 are the same, so that the air ports 123 are uniform, the noise of the bladeless fan is reduced, and the phenomenon that the air ports 123 are not uniform due to the fact that the spacing ribs 122 are welded on the first air duct piece 12 is avoided.

In the embodiment of the present invention, the air outlet 121 is a nozzle penetrating through the wall of the first air duct member 12. The nozzle is in a gap shape to ensure the air outlet effect. The partition rib 122 partitions the slit-shaped nozzle into a plurality of elongated air ports 123. The spacing ribs 122 are arranged in a straight line, and the spacing ribs 122 enable airflow to be ejected out along the plurality of strip-shaped air ports 123, that is, the spacing ribs 122 also have a flow guiding function.

In one embodiment, the first air duct member 12 includes a first connecting portion 12a located at one side of the air outlet 121 and connected to the spacing rib 122, and the second air duct member 14 is welded to the first connecting portion 12 a.

Therefore, the connection reliability and the sealing performance of the two air duct pieces are ensured, and the structure of the machine head 10 for the bladeless fan is more stable and reliable.

Specifically, a surface of the second air duct member 14 opposite to the first connection portion 12a is provided with a first card slot 14 a. First connector 12a is welded within first card slot 14 a.

In one embodiment, the first air duct member 12 includes a second connecting portion 12b on a side away from the air outlet 121. The second air duct member 14 is welded to the second connecting portion 12 b.

So, guaranteed the connection reliability and the leakproofness of two wind channel spares to make the structure closure of keeping away from one side of air outlet 121 better, and stable.

Specifically, a surface of the second air duct member 14 opposite to the second connection portion 12b is provided with a second catching groove 14 b. The second connecting portion 12b is welded in the second card slot 14 b.

Further, in the embodiment of the present invention, the first air duct member 12 includes a first connecting portion 12a and a second connecting portion 12b, the first connecting portion 12a and the second connecting portion 12b extend along two outer sides (as shown in fig. 4, a side of a U-shape located at the front side and a side of a U-shape located at the rear side) of the first air duct member 12, the first connecting portion 12a and the second connecting portion 12b both protrude from an inner surface 12c of the first air duct member 12 to form welding ribs, and ends of the welding ribs are welded in corresponding slots of the second air duct member 14. Therefore, the machine head has stable structure and beautiful appearance.

In one example, the two connecting portions may be respectively in the corresponding card slots by ultrasonic welding.

In the present embodiment, the head 10 for the bladeless fan has an inverted U-shape. The first air channel member 12 is an inner member, and the second air channel member 14 is an outer member.

So, air outlet 121 is located the interior side member that is used for the aircraft nose 10 of bladeless fan, can avoid the outside side member to produce the air current that air outlet 121 erupted and disturb to can prevent to a certain extent that the ash bed from getting into intercommunication wind channel 16 by air outlet 121 in, the aircraft nose structure of the type of falling U simultaneously is comparatively simple, and pleasing to the eye, and make the air current coverage area that erupts by air outlet 121 great, promote user experience.

It should be noted that, in other embodiments, the first air duct member may be an outer member, and the second air duct member may be an inner member. That is, the present invention is not limited to the arrangement in the embodiment of the present invention.

It should be noted that "outer member" and "inner member" are the positional states of the two air duct members when the head 10 for the bladeless fan is in the normal use state, for example, the positional state of the head 10 for the bladeless fan shown in fig. 1.

In one embodiment, the air outlet 121 is opened at one side of the first air duct member 12.

Thus, the airflow can be directly ejected from one side of the air outlet 121, the air outlet is concentrated, and the influence of other parts of the first air duct 12 on the airflow is avoided.

In one embodiment, a routing space 161 (see FIG. 4) is provided within the air chute 16. The routing space 161 is air-tightly spaced from the air chute 16.

Specifically, in the embodiment of the present invention, the routing space 161 is used for accommodating connection wires of electrical components, and both the routing space 161 and the air duct 16 are formed by connecting the first air duct component 12 and the second air duct component 14.

So, increased the aircraft nose 10 of bladeless fan other functions, promoted user experience, simultaneously, walk line space 161 and wind channel 16 airtight ground interval, guaranteed that the air-out of air outlet 121 is not influenced.

In one embodiment, the bladeless fan handpiece 10 includes electrical components (not shown) disposed within the routing space 161, which are connected to the connection wires.

Like this, directly set up electric component and connecting wire are integrated in walking line space 161, both can increase the service function that is used for bladeless fan's aircraft nose 10, do benefit to the intelligent design that is used for bladeless fan's aircraft nose 10 again.

Specifically, in the embodiment of the present invention, the trace space 161 includes a trace channel 161a and an installation space 161 b. The routing channel 161a connects the installation space 161b, the installation space 161b is located at the top of the head 10 for the bladeless fan, and the routing channel 161a extends from the bottom of the head 10 for the bladeless fan to the top of the head 10 for the bladeless fan and communicates with the installation space 161 b. Preferably, the routing channel 161a is shaped to match the outside edge of the handpiece 10 for a bladeless fan to facilitate routing.

The mounting space 161b may be used to place electrical components (not shown), which may include a circuit board and an electronic device disposed on the circuit board.

For example, referring to fig. 8, in one example, the electrical component may be a distance detection device 162, the distance detection device 162 may be disposed in the installation space 161b, the distance detection device 162 may be electrically connected to a first control unit 163 disposed in the routing space 161 or outside the routing space 161 through a connection line, the distance detection device 162 is configured to detect a distance between a user and a bladeless fan of the head 10 installed with the bladeless fan, and when the distance detection device 162 detects that the distance between the user and the bladeless fan is smaller than or equal to a set distance, the first control unit 163 controls the bladeless fan to be turned on according to a detection result of the distance detection device 162, so as to achieve automatic air supply of the head 10 installed with the bladeless fan. The set distance can be set according to specific application conditions. The distance detection device 162 is, for example, an infrared light distance detection device.

In one embodiment, the inner surface 12c of the first air duct member 12 is provided with a partition 124. The baffles 124 enclose the wireway. The second air duct 14 is connected with the partition 124 in a sealing manner to form a wiring space 161 with the wiring duct.

In this way, the arrangement mode of the partition plate 124 connected with the second air duct 14 to form the sealed routing space 161 is easy to implement, and the structure is simple.

In one embodiment, the partition 124 is integrally formed with the first air duct member 12.

Therefore, the structure is simple, the processing is convenient, and the manufacturing cost is low.

In one embodiment, the second air duct member 14 and the partition 124 are hermetically connected by welding.

Therefore, the process is simple, the manufacturing cost is low, and the applicability is strong.

Specifically, when the partition plate 124 of the first air duct member 12 is manufactured, the height of the partition plate 124 may be made larger than the height of the partition plate 124 when connected to the second air duct member 14. Therefore, the partition portion formed by the height difference between the two parts can be used as a welded portion and achieve a sealing connection with the second air duct member 14. In this manner, the welding efficiency is advantageously improved, thereby reducing the cost of the head 10 for the bladeless fan.

In one example, the second air duct member 14 and the partition 124 may be ultrasonically welded.

In one embodiment, the first air duct member 12 is connected to the second air duct member 14 to form the air outlet portion 11 and the air inlet portion 13. The air duct 16 is provided in the air outlet portion 11 and the air inlet portion 13. The air outlet portion 11 is provided with an air outlet 121. The air inlet portion 13 is connected to one end of the air outlet portion 11, and an air inlet 131 is formed in the air inlet portion 13. The air duct 16 communicates with the air inlet 131 and the air outlet 121.

Therefore, the air duct 16 penetrates through the air outlet portion 11 and the air inlet portion 13, so that air flow can fully enter the air duct 16 from the air inlet 131, the air inlet portion 13 is arranged at one end of the air outlet portion 11 and can be used for air inlet, and other functional components can be directly connected through the air inlet portion 13 to increase other functions of the handpiece and improve user experience.

Specifically, in the embodiment of the present invention, the air inlet portion 13 is located at the lower end of the machine head 10 for the bladeless fan, the machine head 10 for the bladeless fan includes two opposite air inlets 131, the two air inlets 131 are symmetrically disposed at the inner side of the machine head 10 for the bladeless fan, and the air flow enters from the air inlets 131, flows from bottom to top along the air duct 16, and is then ejected from the air outlet 121.

Note that "lower end" and "inner side" are position states of the head 10 of the bladeless fan in a normal use state, for example, the position state of the head 10 of the bladeless fan shown in fig. 1.

In one embodiment, the air inlet 131 has a positioning groove 132 formed on an inner side surface thereof, and a positioning member (not shown) is disposed in the positioning groove 132.

So, the cooperation of air inlet portion 13 accessible setting element and constant head tank 132 is in order to realize being connected with other outside functional unit to increase the rotatable function of aircraft nose, promote user experience, and the setting element is comparatively simple with constant head tank 132's cooperation structure, easily realizes.

In an embodiment of the present invention, the positioning element is an elastic positioning element. Therefore, the air inlet part 13 can be elastically connected with other external functional components through the positioning piece, the connection is stable, the flexibility is high, and the space for arranging the machine head 10 of the bladeless fan is increased.

For example, the air inlet portion 13 is connected to the base of the bladeless fan provided with the head 10 for the bladeless fan through the positioning member, and the head 10 of the bladeless fan can be switched by the position of the positioning member to realize the angle switching of the head 10 for the bladeless fan, so that the purpose that the air outlet 121 supplies air at different positions is achieved, and the user experience is improved.

In one embodiment, an engagement groove 133 is formed on an outer side surface of the air inlet portion 13, and a hook 1331 is provided in the engagement groove 133.

Thus, the machine head 10 for the bladeless fan can be stably connected with the base of the bladeless fan through the matching of the matching groove 133 and the clamping piece 1331, so that the machine head is fixed in position, the use is facilitated, and the user experience is improved.

In one embodiment, the end surface of the air inlet portion is formed with an annular mounting groove 134, and the mounting groove 134 is used for placing a sealing ring (not shown). Thus, the head 10 for the bladeless fan can be hermetically connected with the base of the bladeless fan through the matching of the mounting groove 134 and the sealing ring, so as to avoid air volume loss and noise caused by air leakage of the head.

Specifically, a ventilation hole is provided corresponding to a base portion connected to the air inlet portion 13, an outer edge of the base portion is provided with a sealing ring, when the head 10 for the bladeless fan is mounted to the base, the base portion extends into the air inlet portion 13 from the air inlet 131, the air inlet 131 communicates with the ventilation hole, and the sealing ring is received in the mounting groove 134 to seal a connection portion of the air inlet portion 13 and the base, thereby achieving air-tight connection of the head 10 and the base.

Referring to fig. 9 to 12, in one embodiment, the inner surface 12c of the first air duct member 12 is provided with a flow guide device 15. The air guiding device 15 is in a step-shaped structure, and the air guiding device 15 is used for guiding the air flow to the air outlet 121.

So, because guiding device 15 sets up towards air outlet 121 slope to can make the air current smoothly flow to air outlet 121 direction under guiding device 15's effect, thereby the loss of reducible gas in the flow guarantees the uniformity that is used for the aircraft nose 10 air-out effect and the air-out direction of bladeless fan, and promotes user experience.

Specifically, in the embodiment of the present invention, the deflector 15 includes three steps 151, and the three steps 151 are sequentially connected to form a stepped structure. Three steps 151 are provided in the air duct 16. In the present example, the step 151 near the top position of the head 10 for the bladeless fan is closer to the outlet port 121 than the step 151 near the inlet port 131.

Thus, the airflow can be collected along the three steps 151 toward the air outlet 121, so that the consistency of the air outlet effect and the air outlet direction can be effectively ensured, and the flow guide device 15 is simple in structure and easy to manufacture.

Taking the middle step 151 as an example, the step 151 includes three guiding surfaces, namely a first guiding surface 151a, a second guiding surface 151b and a third guiding surface 151 c. The third guiding surface 151c connects the first guiding surface 151a and the second guiding surface 151 b. The three flow guide surfaces are outer surfaces of step-shaped structures, the first flow guide surface 151a and the second flow guide surface 151b face the air outlet 121, and the three flow guide surfaces are used for guiding air flow to the air outlet 121. Thus, each step can guide the airflow in the air duct 16 to the air outlet 121 by fully utilizing the three flow guide surfaces.

The other two steps are similar in structure to the middle step and will not be expanded in detail.

In one embodiment, the air outlet portion 11 includes an arc-shaped flow guide 152 disposed in the air duct 16, and the arc-shaped flow guide 152 is connected to an air inlet side of the air duct 16.

Thus, the arc-shaped flow guide member 152 can enable high-speed airflow to smoothly enter the air duct 121, so as to reduce noise of the machine head 10, and meanwhile, the airflow can intensively enter the air duct 121, so as to ensure consistency of airflow flowing directions in the air duct 121, and accordingly, air outlet effect is ensured.

Specifically, in the embodiment of the present invention, the arc-shaped flow guiding member 152 is connected to the air inlet side of the air duct 16 and protrudes toward the air outlet 121 side and is disposed near the air inlet 131, the arc-shaped flow guiding member 152 is formed with an arc-shaped flow guiding surface 152a, and the arc-shaped flow guiding surface 152a faces the air outlet 121. The high-speed airflow is forced to be buffered by the arc-shaped flow guide surface 152a and enters the air duct 121 more intensively along the arc-shaped flow guide surface 152 a.

In an example of the present invention, when the head 10 for the bladeless fan includes the air guide 15, the arc-shaped air guide 152 is coupled to an upwind side of the air guide 15, and the arc-shaped air guide 152 serves to smoothly guide the air flow to the air guide 15, so that the air flow can be smoothly guided to the air guide 15.

Referring to fig. 13 to 14, a bladeless fan 100 according to an embodiment of the present invention includes a power system 20 and the above-mentioned handpiece 10 for a bladeless fan. The power system 20 is used to generate a high pressure gas stream. The handpiece 10 is connected to the power system 20 and is configured to receive the high-pressure air flow and eject the high-pressure air flow through the air duct 16 and the air outlet 121.

In the bladeless fan 100 according to the embodiment of the present invention, the spacing rib 122 and the first air duct 12 are integrally formed, so that the plurality of air outlets 123 are more easily uniform, thereby reducing resistance of air flow, reducing noise of the bladeless fan 100, and improving user experience.

In one embodiment, bladeless fan 100 further comprises a base 30 and a ventilation tube 40 connecting base 30 and handpiece 10. The base 30 houses the power system 20.

Specifically, in the present embodiment, the power system 20 includes a diffuser 21, a motor 22, a wind wheel 23, a motor housing 24, and a wind wheel housing 25. The motor 22 is housed in a motor housing 24, and the wind wheel 23 is housed in a wind wheel housing 25. The motor housing 24 is connected to the wind wheel housing 25. An air vent (not shown) is formed on the outer circumferential surface of the base 30, and external air enters the base 30 through the air vent. The ventilation pipe 40 is communicated with the air inlet 131.

In this way, the motor 22 drives the wind wheel 23 to rotate to suck the outside air into the base 30, and generates a high-speed airflow under the high-speed rotation of the wind wheel 23. The generated high-speed airflow is then decelerated and pressurized by the diffuser 21 and then enters the air duct 16 through the ventilation pipe 40.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

In the description of the present specification, reference to the description of the terms "one embodiment", "some embodiments", "an illustrative embodiment", "an example", "a specific example", or "some examples", etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A machine head for a bladeless fan is characterized by comprising a first air channel piece and a second air channel piece, wherein the first air channel piece is connected with the second air channel piece to form an air channel;

the first air duct piece is provided with an air outlet communicated with the air duct, spacing ribs are arranged in the air outlet to space the air outlet into a plurality of air ports, and the spacing ribs and the first air duct piece are of an integrally formed structure;

the air duct is internally provided with a wiring space, the wiring space and the air duct are arranged at an airtight interval, the wiring space comprises an installation space and a wiring channel connected with the installation space, the installation space is used for placing an electric component, and the wiring space is used for accommodating a connecting wire of the electric component;

the inner surface of the first air duct piece is provided with a flow guide device, the flow guide device is of a step-shaped structure, and the flow guide device is used for guiding air flow to the air outlet.

2. The head for a bladeless fan according to claim 1, wherein the first air channel member includes a first connecting portion located at one side of the air outlet and connected to the spacing rib, and the second air channel member is welded to the first connecting portion.

3. The head for a bladeless fan according to claim 1 or 2, wherein the first air duct member includes a second connecting portion on a side away from the air outlet, and the second air duct member is connected to the second connecting portion by welding.

4. The head for a bladeless fan according to claim 1, wherein the head for a bladeless fan has an inverted U-shape, the first air channel member is an inner side member, and the second air channel member is an outer side member.

5. The head for a bladeless fan according to claim 1, wherein the head for a bladeless fan has an inverted U-shape, the first air channel member is an outer side member, and the second air channel member is an inner side member.

6. The head for a bladeless fan according to claim 1, wherein the air outlet is opened at one side of the first air duct member.

7. The handpiece for the bladeless fan according to claim 1, wherein the inner surface of the first air duct member is provided with a partition plate, the partition plate surrounds a wire slot, and the second air duct member is hermetically connected with the partition plate to form the wire routing space with the wire slot.

8. The head for a bladeless fan according to claim 7, wherein the partition plate and the first air duct member are of an integrally formed structure.

9. The head for a bladeless fan according to claim 7, wherein the second air duct member is hermetically connected to the partition by welding.

10. The head for a bladeless fan according to claim 1, wherein the first air duct member is connected to the second air duct member to form an air outlet portion and an air inlet portion, the air duct is disposed in the air outlet portion and the air inlet portion, the air outlet portion is disposed with the air outlet, the air inlet portion is connected to an end of the air outlet portion, the air inlet portion is disposed with the air inlet, and the air duct communicates with the air inlet and the air outlet.

11. The head for a bladeless fan according to claim 10, wherein a positioning groove is formed on an inner side surface of the air inlet, and a positioning member is disposed in the positioning groove.

12. The head for a bladeless fan according to claim 10, wherein an annular mounting groove is formed in an end surface of the air inlet portion, and the mounting groove is used for placing a sealing ring.

13. The head for a bladeless fan according to claim 10, wherein the air outlet portion comprises an arc-shaped flow guide member disposed in the air duct, the arc-shaped flow guide member being connected to an air inlet side of the air duct.

14. A bladeless fan, comprising:

a power system for generating a high pressure gas stream; and

a head for a bladeless fan according to any one of claims 1 to 13;

the machine head is connected with the power system and used for receiving the high-pressure airflow and jetting the high-pressure airflow through the air duct and the air outlet.

15. The bladeless fan of claim 14 further comprising a base and a ventilation tube connecting the base and the head, the base housing the power system.