WO2016124038A1

WO2016124038A1 - Pitching structure of bladeless fan and bladeless fan

Info

Publication number: WO2016124038A1
Application number: PCT/CN2015/095844
Authority: WO
Inventors: 豆海; 马列; 李殿飞
Original assignee: 广东美的环境电器制造有限公司; 美的集团股份有限公司
Priority date: 2015-02-03
Filing date: 2015-11-27
Publication date: 2016-08-11

Abstract

Disclosed is a pitching structure of a bladeless fan (100) and a bladeless fan (100), the bladeless fan comprising: a machine head (12), a main air guiding tube (14) and a hollow ball hinge (16), wherein the hollow ball hinge (16) is connected to the machine head (12) and the main air guiding tube (14) in a sealed manner; the hollow ball hinge (16) is fixedly connected to the machine head (12); and the hollow ball hinge (16) comprises a pin shaft (160), and the pin shaft (160) forms an included angle with the axial direction of the main air guiding tube (14), such that the machine head (12) can rotate around the pin shaft (160) to complete the pitching action. The pitching structure increases the working space of the bladeless fan.

Description

Pitchless fanless structure and leafless fan

Priority information

Priority is claimed on Japanese Patent Application No. 201510057089.X and No. 201520077401.7, the entire contents of which are hereby incorporated by reference.

Technical field

The present invention relates to a fan, and more particularly to a pitchless structure of a bladeless fan and a bladeless fan.

Background technique

The leafless fan adopts a household appliance that forcibly presses air into the handpiece through the power system and then shoots through the nozzle of the nose. Since it does not have a blade, it does not cover the dust when used, and effectively avoids the blade brought by the high-speed rotation. Safety hazards, therefore, with the development of technology, the leafless fan has gradually replaced the traditional leafed fan and is widely used. However, the existing bladeless fan can only perform horizontal sweeping in the horizontal direction, and the head cannot realize the vertical tilting motion, which greatly affects the working space of the bladeless fan.

Summary of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention needs to provide a pitchless structure of a bladeless fan and a bladeless fan.

The pitchless structure of the bladeless fan of the preferred embodiment of the present invention includes a nose, a main duct and a hollow ball joint. The hollow ball joint is sealingly connected to the machine head and the main air duct, the hollow ball joint is fixedly connected with the machine head, and the hollow ball joint comprises a pin shaft, the pin shaft and the The axial direction of the main duct is at an angle such that the head can be rotated about the pin to achieve a pitching motion.

In a pitchless structure of a bladeless fan in accordance with a preferred embodiment of the present invention, due to the use of the pitching structure, the handpiece can be tilted relative to the main duct with a sealed connection with the main duct.

In some embodiments, the hollow ball joint comprises an inner hollow ball joint and an outer hollow ball joint, the inner hollow ball joint is sleeved in the outer hollow ball joint, and the pin is connected The inner hollow ball joint and the outer hollow ball joint, the inner hollow ball hinge is rotatable about the pin relative to the outer hollow ball joint, the inner hollow ball joint and the machine The head is fixedly coupled, and the inner hollow ball joint and the outer hollow ball joint form a cavity that communicates with the main air duct and the handpiece.

In some embodiments, the inner hollow ball hinge is formed with two first holes, and the outer hollow ball hinge is formed with Two second holes, the pin passes through the two first holes and the two second holes and the pin is fixed to the outer hollow ball joint.

In some embodiments, the outer wall of the inner hollow ball joint that is in contact with the outer hollow ball joint is provided with a groove in which a seal is provided.

In some embodiments, the seal is a rubber seal.

In some embodiments, the outer hollow ball joint is rotatably and sealingly coupled to the main duct to achieve horizontal rotation of the handpiece.

In some embodiments, a rubber sealing ring is disposed between the outer hollow ball joint and the main air duct.

In some embodiments, the maximum angle of rotation of the handpiece is 10°.

In some embodiments, the included angle is 90°.

A bladeless fan according to a preferred embodiment of the present invention includes a base and a power unit. The power unit is disposed inside the base and the power unit is configured to generate a high pressure air stream. The bladeless fan further includes a pitching structure of the bladeless fan described above, the base being in communication with the main duct.

In some embodiments, the head is internally provided with a cavity for gas circulation, and the cavity sidewall is uniformly provided with a plurality of holes for gas jetting.

The additional aspects and advantages of the invention will be set forth in part in the description which follows.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention, Those of ordinary skill in the art will be able to obtain other figures from these drawings without the inventive effort.

1 is a front elevational view of a pitching structure of a bladeless fan in accordance with an embodiment of the present invention.

2 is a side view of a pitch structure of a bladeless fan in accordance with an embodiment of the present invention.

3 is a schematic cross-sectional view of the pitch-free structure of the bladeless fan of FIG. 1 taken along III-III.

4 is a schematic cross-sectional view of the pitching structure of the bladeless fan of FIG. 2 taken along IV-IV.

Figure 5 is an enlarged schematic view of a portion V of the pitch structure of the bladeless fan of Figure 3.

Figure 6 is an enlarged schematic view of a portion VI of the pitching structure of the bladeless fan of Figure 4;

Figure 7 is an enlarged schematic view of a portion VII of the pitch structure of the bladeless fan of Figure 4;

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", " The orientation or positional relationship of the indications of "upright", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present invention and The simplification of the description is not intended to limit or imply that the device or component that is referred to has a particular orientation, is constructed and operated in a particular orientation, and thus is not to be construed as limiting. Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or quantity or location.

In the description of the present invention, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components. The specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.

The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

Referring to FIGS. 1 to 4 , the pitch structure of the bladeless fan 100 in the present embodiment includes a handpiece 12 , a main duct 14 and a hollow ball joint 16 . The hollow ball joint 16 is sealingly connected with the main air duct 14 of the handpiece 12. The hollow ball joint 16 is fixedly connected with the handpiece 12. The hollow ball joint 16 includes a pin 160, and the pin shaft 160 is aligned with the axial direction of the main air duct 14. The angle is such that the handpiece 12 is rotatable about the pin 160 to effect a pitching action.

In the pitch configuration of the bladeless fan 100 in accordance with the preferred embodiment of the present invention, the head 12 can be pitched relative to the main duct 14 while maintaining a sealed connection with the main duct 14 due to the pitch structure.

In the present embodiment, the included angle is 90°. As such, the handpiece 12 is rotatable about the pin 160 to effect a pitching motion.

Of course, the angle is not limited to 90°, as long as the head 12 can be rotated about the pin 160 to achieve the pitching motion.

Referring to FIG. 5 and FIG. 6 , in the present embodiment, the hollow ball joint 16 includes an inner hollow ball joint 162 and an outer hollow ball joint 164 , and the inner hollow ball joint 162 is sleeved in the outer hollow ball joint 164 . The pin 160 is connected with an inner hollow ball joint 162 and an outer hollow ball joint 164. The inner hollow ball joint 162 is rotatable about the pin 160 relative to the outer hollow ball joint 164. The inner hollow ball joint 162 and the head 12 The fixed hollow connection, the inner hollow ball joint 162 and the outer hollow ball joint 164 are formed with a cavity 166 that communicates with the main air duct 14 and the handpiece 12.

Thus, the hollow ball joint 16 is made to ensure that the airflow in the bladeless fan 100 is not affected. The bladeless fan 100 can realize pitch rotation in the vertical direction, and the bladeless fan 100 can provide wind at multiple angles, greatly increasing the range of the bladeless fan 100, and having a simple structure and convenient operation.

In the present embodiment, the inner hollow ball joint 162 is formed with two first holes 162a, and the outer hollow ball joint 164 is formed with two second holes 164a through which the pin 160 passes through the two first holes 162a and two The second hole 164a and the pin 160 are fixed to the outer hollow ball joint 164.

Specifically, the handpiece 12 is annular and the hollow ball hinge 16 is substantially hollow spherical. The hollow ball joint 16 includes a hollow hollow hemispherical inner hollow ball joint 162, a substantially hollow hemispherical outer hollow ball joint 164, and a pin 160 connecting the inner hollow ball joint 162 and the outer hollow ball joint 164. . The two first holes 162a are symmetrically disposed about the axial direction of the main duct 14. The two second holes 164a are symmetrically disposed about the axial direction of the main duct 14. The pin 160 is perpendicular to the axial direction of the main duct 14. The hollow ball joint 16 is formed with a substantially spherical cavity 166 that communicates with the handpiece 12 and the main duct 14. The hollow ball joint 16 is sealingly connected with the head 12 and the main air duct 14, the inner hollow ball joint 162 is fixedly connected with the head 12, the outer hollow ball joint 164 is sealingly connected with the main air duct 14, and the head 12 can be wound around. The shaft 160 is pitched relative to the main duct 14.

Of course, the above shapes are merely given as examples to help explain the pitch structure of the bladeless fan 100, and are not intended to limit the present invention.

In the present embodiment, the outer wall of the inner hollow ball joint 162 that is in contact with the outer hollow ball joint 164 is provided with an annular groove 18 in which a seal 20 is disposed.

Thus, the sealing member 20 is fixed in the recess 18 and is not easily detached, and the outer wall of the inner hollow ball joint 162 slides relative to the inner wall of the outer hollow ball joint 164 to press the sealing member 20. The sealing member 20 functions as a seal to ensure the sealing of the air passage of the vaneless fan 100 when the inner hollow ball joint 162 is rotated relative to the outer hollow ball joint 164.

In the present embodiment, the seal 20 is a rubber seal.

Thus, the sealing property is good, and the outer wall of the inner hollow ball joint 162 and the inner wall of the outer hollow ball joint 164 are pressed against the rubber sealing ring and are relatively slidable.

In the present embodiment, the outer hollow ball joint 164 is rotated and sealed with the main air duct 14 to achieve horizontal rotation of the handpiece 12.

In this way, the handpiece 12 can achieve horizontal rotation and can sweep a wider range.

In the present embodiment, a rubber seal ring is disposed between the outer hollow ball joint 164 and the main air duct 14.

In this way, the airtightness of the connection of the outer hollow ball joint 164 to the main duct 14 can be ensured.

Specifically, the main air duct 14 is substantially straight tubular, and the main air duct 14 is formed with an upper end wall sealingly connecting the bottom of the outer hollow ball joint 164 from the outer peripheral surface, and the main air duct 14 extends upward from the upper end wall to form an upper outer wall, leading The upper outer wall of the air duct 14 is received in the cavity 166, and a rubber sealing ring is disposed between the outer hollow ball joint 164 and the upper outer wall of the main air duct 14. The outer hollow ball joint 164 is rotatable relative to the main air duct 14 to achieve horizontal rotation of the handpiece 12. The inner wall of the outer hollow ball joint 164 is pressed against the upper outer wall of the main air duct 14 and is relatively slidable.

In the present embodiment, the maximum angle of rotation of the handpiece 12 is 10°.

In this manner, the pitch structure head 12 of the bladeless fan 100 can pitch in a certain range.

Specifically, the annular handpiece 12 faces the user, and the handpiece 12 is swingable back and forth about the pin shaft 160 relative to the main air duct 14 to effect the pitching motion of the handpiece 12. The handpiece 12 can be rotated forward by 10° in the maximum range, and the handpiece 12 can be rotated up to 10° in the maximum range. The sealing performance of the air flow passage inside the bladeless fan 100 is ensured, and the bladeless fan 100 can be pitched in the vertical direction by the hollow ball joint member 16. In this way, the bladeless fan 100 can provide wind at multiple angles, greatly increasing the sweeping range of the bladeless fan 100, and the tilting structure is simple and easy to operate.

The bladeless fan 100 of the preferred embodiment of the present invention includes a base 22 and a power unit 30. The power unit 30 is disposed inside the base 22 and the power unit 30 is used to generate a high pressure air stream. The bladeless fan 100 further includes a pitch structure of the above bladeless fan 100, and the base 22 is in communication with the main duct 14.

As such, the high pressure airflow within the susceptor 22 passes through the main duct 14 and the hollow ball joint 16 into the handpiece 12.

In the present embodiment, a cavity for gas circulation is provided inside the handpiece 12, and a plurality of holes for airflow ejection are uniformly disposed on the side wall of the cavity.

Thus, the high pressure gas stream in the cavity of the head 12 is ejected from the holes to generate wind.

Referring to FIG. 7 , specifically, the bladeless fan 100 further includes a wind wheel 24 , a diffuser 26 , and a motor 28 received in the base 22 . The base 22 has a cylindrical shape, and the wind wheel 24 is driven by a motor 28 to draw outside air into the base 22. The base 22 is in communication with the main duct 14. The diffuser 26 increases the flow of gas delivered to the handpiece 12. The power unit 30 formed by the wind wheel 24, the diffuser 26 and the motor 28 delivers a flow of compressed air entering the susceptor 22 to the handpiece 12 and is ejected from a plurality of holes. The jet of air will be ejected. The surrounding air is sucked in to drive the surrounding air forward, resulting in low mechanical resistance.

Of course, the above shapes are merely given as an example to help explain the structure of the bladeless fan 100, and are not intended to limit the present invention.

In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means a specific feature described in connection with the embodiment or example. A structure, material or feature is included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms does not necessarily mean the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, it is understood that the foregoing embodiments are illustrative and not restrictive Variations, modifications, alterations and variations of the above-described embodiments are possible within the scope of the invention. The scope of the invention is The claims and their equivalents are set forth.

Claims

A pitch structure of a bladeless fan, characterized by comprising:

Machine head

Dominant duct; and

a hollow ball joint that is sealingly coupled to the handpiece and the main air duct, the hollow ball joint is fixedly coupled to the handpiece, the hollow ball joint includes a pin, the pin and the The axial direction of the main duct is at an angle such that the head can be rotated about the pin to achieve a pitching motion.
The tipless structure of the bladeless fan according to claim 1, wherein the hollow ball joint comprises an inner hollow ball joint and an outer hollow ball joint, and the inner hollow ball joint is sleeved on the outer In the hollow ball joint, the pin shaft is connected with the inner hollow ball joint and the outer hollow ball joint, and the inner hollow ball joint is rotatable about the pin relative to the outer hollow ball joint The inner hollow ball joint is fixedly coupled to the handpiece, and the inner hollow ball joint and the outer hollow ball joint form a cavity that communicates with the main air duct and the handpiece.
The bladeless fan pitch structure according to claim 2, wherein the inner hollow ball joint is formed with two first holes, and the outer hollow ball hinge is formed with two second holes, A pin passes through the two first holes and the two second holes and the pin is fixed to the outer hollow ball joint.
The tipless structure of the bladeless fan according to claim 2, wherein an outer wall of the inner hollow ball joint that is in contact with the outer hollow ball joint is provided with a groove, and the groove is provided with a seal Pieces.
The bladeless fan pitch structure according to claim 4, wherein the seal member is a rubber seal ring.
The bladeless fan pitch structure according to claim 2, wherein the outer hollow ball joint is rotatably and sealingly connected to the main air duct to achieve horizontal rotation of the handpiece.
The bladeless fan pitch structure according to claim 6, wherein a rubber sealing ring is disposed between the outer hollow ball joint and the main air duct.
The bladeless fan pitch structure according to claim 1, wherein a maximum angle of rotation of the handpiece is 10°.
The bladeless fan pitch structure according to claim 1, wherein the included angle is 90°.
A leafless fan comprising: a base and a power unit disposed inside the base for generating a high pressure airflow, wherein the bladeless fan further comprises the apparatus of any one of claims 1-9 A pitching structure of a bladeless fan, the base being in communication with the main duct.
The bladeless fan according to claim 10, wherein a cavity for gas circulation is provided inside the handpiece, and a plurality of holes for airflow ejection are uniformly disposed on the side wall of the cavity.