CN107237772B

CN107237772B - Fan head assembly and fan

Info

Publication number: CN107237772B
Application number: CN201710637449.2A
Authority: CN
Inventors: 余勇; 崔世强; 吴永强; 彭飞; 张稳军; 张旭升; 徐玮; 刘维亮; 严凤喜
Original assignee: GD Midea Environment Appliances Manufacturing Co Ltd
Current assignee: GD Midea Environment Appliances Manufacturing Co Ltd
Priority date: 2017-07-28
Filing date: 2017-07-28
Publication date: 2023-07-28
Anticipated expiration: 2037-07-28
Also published as: EP3650704A1; EP3650704A4; JP2020526706A; KR102341015B1; JP6892178B2; EP3650704B1; WO2019019345A1; KR20200018660A; CN107237772A

Abstract

The invention is applicable to the field of household appliances, and discloses a fan head assembly and a fan, wherein the fan head assembly comprises an air outlet base, an air inlet base arranged on one side of the air outlet base and a swing mechanism for driving the air outlet base to perform swing motion relative to the air inlet base, and the swing mechanism comprises a swing driving motor assembled on the air inlet base and a swing transmission pair in transmission connection with the swing driving motor and the air outlet base. In the invention, the air outlet base can perform rotary swing motion relative to the air inlet base, and breaks through the conventional design thinking that the air outlet base and the air inlet base are relatively fixed in the existing fan. Because the air outlet base carries out three-dimensional rotary swing motion relative to the air inlet base, cool and dazzling sense is quite sufficient when the product runs, the problems that the existing fan product is serious in homogeneity and has no different selling points are well solved, meanwhile, the air supply area is effectively enlarged, the rotary output of the wind direction is realized, and the output wind sense is softer and more natural.

Description

Fan head assembly and fan

Technical Field

The invention relates to the field of household appliances, in particular to a fan head assembly and a fan with the same.

Background

The oscillating mode of the fan in the prior art is mainly as follows: one is automatic left-right shaking and manual up-down shaking; one is automatic up and down shaking and manual left and right shaking; one is automatic left-right shaking and automatic up-down shaking combined shaking. These oscillating modes of existing fans have the following disadvantages in specific applications:

1) The air outlet base and the air inlet base of the fan are relatively fixed, the range of the air supply area is limited greatly, the products are seriously homogenized, and the products are not differentiated in selling points, so that the popularization and the sale of the products are not facilitated'

2) Each shaking mode is simply combined together by a single plane shaking mode, so that space three-dimensional shaking is not truly realized, the homogenization of products is serious, and differentiated selling points are not generated, so that the popularization and the sales of the products are not facilitated; in addition, since the motion locus of the single plane shaking head is linear reciprocating motion, the problem of shaking head and stopping at the reversing position is easy to occur.

3) Each group of single-plane head shaking modes is realized by driving a group of transmission mechanisms by a motor, for example, a synchronous motor is adopted to drive a four-bar mechanism or a stepping motor/reversible motor is adopted to drive a gear meshing mechanism; the structure is complex, the combined three-dimensional shaking technology is high in difficulty, the production and the manufacture are difficult, and the investment cost is high.

Disclosure of Invention

The first objective of the present invention is to provide a fan head assembly, which aims to solve the technical problems of serious homogenization and no differential selling points of products caused by the relative fixation of the existing oscillating fan base and the air inlet base.

In order to achieve the above purpose, the invention provides the following scheme: the fan head assembly comprises an air outlet base, an air inlet base arranged on one side of the air outlet base and a swing mechanism for driving the air outlet base to perform swing motion relative to the air inlet base, wherein the swing mechanism comprises a swing driving motor assembled on the air inlet base and a swing transmission pair in transmission connection with the swing driving motor and the air outlet base.

Optionally, the air outlet base has a first spherical surface, the air inlet base has a second spherical surface in clearance fit with the first spherical surface, the spherical center of the first spherical surface coincides with the spherical center of the second spherical surface, and the first spherical surface is coated outside the second spherical surface or the second spherical surface is coated outside the first spherical surface.

Optionally, a gap of 1mm-12mm is provided between the first spherical surface and the second spherical surface.

Optionally, the rotary pendulum driving motor has an output shaft, the rotary pendulum transmission pair includes a cam assembled on the output shaft, a connecting sleeve sleeved on the cam, a connecting rod connected with the connecting sleeve, and a universal spherical hinge structure sleeved on the connecting rod and connected with the air inlet base, the air outlet base is connected with the connecting rod, and the spherical center of the first spherical surface, the spherical center of the second spherical surface and the spherical center of the universal spherical hinge structure coincide.

Optionally, the cam is an eccentric wheel, a central axis of the connecting rod and a central axis of the output shaft have an included angle A, and the included angle A satisfies the relation: a is more than 0 DEG and less than or equal to 30 deg.

Alternatively, a=5° ±3°.

Optionally, the universal ball hinge structure comprises a universal ball sleeve connected with the air inlet base, a universal ball head sleeved on the connecting rod and penetrating through the universal ball sleeve, and a ball head fixing cover sleeved on one end of the universal ball head and connected with the universal ball sleeve.

Optionally, the connecting rod comprises a first rod body and a second rod body with an outer diameter smaller than that of the first rod body, the end part, far away from the second rod body, of the first rod body is sleeved on the connecting sleeve, the universal ball hinge structure is sleeved on the second rod body, and the air outlet base is connected with the second rod body; and/or the number of the groups of groups,

the connecting rod is of a hollow structure.

Optionally, the air inlet base includes the air inlet screen panel and install in the installing support in the air inlet screen panel, the second sphere is located on the air inlet screen panel, the pendulum driving motor with the one end of installing support is connected, universal spherical hinge structure with the other end of installing support is connected.

Optionally, the air inlet mesh enclosure includes the mesh enclosure body, install in the center of mesh enclosure body one end and protruding locate the sleeve in the mesh enclosure body, the installing support with the pendulum driving motor all accept in the sleeve, the second sphere is located on the center.

Optionally, the air inlet base still includes plastic connector and damping pad, the installing support passes through plastic connector connects the sleeve, damping pad is including locating the installing support with first damping portion between the sleeve, locate the installing support with the second damping portion between the universal ball hinge structure and extend the butt the third damping portion of sleeve inside wall.

Optionally, the air-out base includes the fan housing and locates the flabellum in the fan housing, fan head subassembly still include with the flabellum is connected in order to be used for driving the air-out driving motor of flabellum rotary motion, first motor include relative the stationary stator of fan housing and with the stator rotates to be connected and with the rotor of the stationary connection relatively of flabellum, the fan housing with the pendulum transmission is vice to be connected.

Optionally, the air outlet driving motor is arranged in the fan housing, and the stator is connected with the fan housing and/or the rotary swing transmission pair; or alternatively, the process may be performed,

the air-out driving motor is arranged outside the fan housing, and the stator is connected with the rotary swing transmission pair.

Optionally, the fan housing comprises a main housing, a front net assembled at one end of the main housing, and a rear net assembled at the other end of the main housing, wherein the rear net is connected with the swing mechanism.

A second object of the present invention is to provide a fan, which includes the fan head assembly and a base assembly connected to the fan head assembly, wherein the air inlet base is mounted on the base assembly.

Optionally, the base assembly includes the base body and installs in order to be used for driving on the base body fan head subassembly reciprocating rotation's mechanism of shaking head, the air inlet base connection the mechanism of shaking head.

Optionally, the fan is a desk fan or a floor fan or a wall fan.

According to the fan head assembly and the fan, the fan head assembly is additionally provided with the rotary swing mechanism to drive the air outlet base to perform rotary swing motion, the rotary swing driving motor is arranged on the air inlet base to provide power, and the rotary swing driving motor is connected with the air outlet base through the rotary swing transmission pair in a transmission mode, so that after the rotary swing driving motor is started, the rotary swing transmission pair can convert the power output by the rotary swing driving motor into rotary swing motion and drive the air outlet base to perform rotary swing motion together, the air outlet base can perform rotary swing motion relative to the air inlet base, the conventional design thinking that the air outlet base and the air inlet base are relatively fixed in the existing fan is broken, and as the air outlet base performs three-dimensional rotary swing motion relative to the air inlet base, cool sense is quite enough when a product is operated, the problems of serious homogenization and no difference in selling points of an existing fan product are well solved, and popularization and sales of the product are facilitated. In addition, the air-out base is driven by the rotary swing mechanism to perform three-dimensional rotary swing motion combining rotation and swing, namely, the air-out base can be driven by the same power mechanism to realize the combination of two swinging modes, so that the air-out base realizes the function of spatial three-dimensional swinging, effectively expands an air supply area, realizes the rotary output of wind direction, and has softer and more natural output wind sense. Further, as the swing motion track of the air outlet base is a three-dimensional continuous circumferential closed track, the problem of stopping at the reversing position similar to the linear reciprocating motion of the existing fan in a single plane does not occur, and compared with the existing conventional automatic oscillating fan, the automatic oscillating fan has lower cost and more reliable motion.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic sectional view of an assembled fan head assembly according to an embodiment of the present invention;

fig. 2 is an exploded perspective view of a swing transmission pair according to an embodiment of the present invention;

FIG. 3 is an exploded perspective view of an air outlet base, an air outlet driving motor and a connecting bracket according to an embodiment of the present invention;

FIG. 4 is a schematic view of a fan head assembly according to an embodiment of the present invention;

FIG. 5 is a schematic illustration of the principle of rotational pendulum motion of a fan head assembly provided by an embodiment of the present invention;

fig. 6 is an assembled cross-sectional view of a fan according to an embodiment of the present invention.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				100	Fan head assembly	1	Air outlet base
11	Wind shield	110	First spherical surface
				111	Main housing	112	Front net
113	Rear net	12	Fan blade
				2	Air outlet machine seat	21	Air inlet net cover
210	Second spherical surface	211	Net cover body
				212	Middle frame	213	Sleeve barrel
22	Mounting bracket	23	Plastic connecting piece
				24	Vibration damping pad	3	Swing mechanism
31	Rotary swing driving motor	311	Output shaft
				3110	Central shaft of output shaft	32	Rotary swing transmission pair
321	Cam	322	Connecting sleeve
				323	Connecting rod	3230	Central shaft of connecting rod
3231	First rod body	3232	Second rod body
				324	Universal spherical hinge structure	3240	Ball center of universal ball hinge structure
3241	Universal ball sleeve	3242	Universal ball head
				3243	Ball head fixing cover	4	Air-out driving motor
41	Stator	42	Rotor
				5	Connecting support	200	Base assembly
201	Base body	202	Swinging mechanism

The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

It will also be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

As shown in fig. 1-6, the fan head assembly 100 provided by the embodiment of the invention includes an air outlet base 1, an air inlet base 2 arranged at one side of the air outlet base 1, and a swing mechanism 3 for driving the air outlet base 1 to perform swing motion relative to the air inlet base 2, wherein the swing mechanism 3 includes a swing driving motor 31 assembled on the air inlet base 2 and a swing transmission pair 32 for connecting the swing driving motor 31 and the air outlet base 1 in a transmission manner.

Specifically, the air outlet base 1 is an air outlet side of the fan head assembly 100, the air inlet base 2 is an air inlet side of the fan head assembly 100, and in specific application, when the fan is running, external air enters the fan head assembly 100 from the air inlet base 2, and is discharged out of the fan head assembly 100 from the air outlet base 1. The swing driving motor 31 is a power output part of the swing mechanism 3, and the swing transmission pair 32 is used for converting the power output by the swing driving motor 31 into swing motion and transmitting the swing motion to the air-out base 1, so that the purpose of driving the air-out base 1 to generate swing motion is achieved. The rotary and swinging motion is a spatial three-dimensional motion, specifically a combined motion of rotation and swinging, and the motion track is a three-dimensional continuous circumferential closed track. According to the fan head assembly 100 provided by the embodiment of the invention, the air outlet base 1 can perform rotary swinging motion relative to the air inlet base 2 under the driving of the rotary swinging mechanism 3, so that the conventional design thinking that the air outlet base 1 and the air inlet base 2 are relatively fixed in the existing fan is broken, and as the air outlet base 1 performs three-dimensional rotary swinging motion relative to the air inlet base 2, the cool and dazzling feeling is quite sufficient when a product runs, the problems that the existing fan product is serious in homogeneity and has no differential selling point are well solved, and the popularization and the sales of the product are facilitated. In addition, because the air-out base 1 is driven by the rotary swinging mechanism 3 to perform three-dimensional rotary swinging motion combining rotation and swinging, namely, the air-out base 1 can realize the combination of two swinging modes under the driving of the same power mechanism, the air-out base 1 further realizes the function of spatial three-dimensional swinging, the air supply area is effectively enlarged, the rotary output of the wind direction is realized, and the output wind sense is softer and more natural. Further, since the swing motion track of the air outlet base 1 is a three-dimensional continuous circumferential closed track, the problem of stopping at the reversing position similar to the linear reciprocating motion of a fan in a single plane does not occur, and the motion of a product is more reliable.

Preferably, referring to fig. 1, 4 and 6, the air outlet base 1 has a first spherical surface 110, the air inlet base 2 has a second spherical surface 210 in clearance fit with the first spherical surface 110, the spherical center of the first spherical surface 110 coincides with the spherical center of the second spherical surface 210, and the second spherical surface 210 is coated outside the first spherical surface 110. Here, the second spherical surface 210 is coated outside the first spherical surface 110, so that the air outlet base 1 and the air inlet base 2 can be well connected together, on one hand, dust or sundries can be prevented from entering the rotary swing mechanism 3, on the other hand, the appearance aesthetic property of a product can be improved, and on the other hand, the first spherical surface 110 and the second spherical surface 210 are concentrically arranged, and the first spherical surface 110 and the second spherical surface 210 are in clearance fit, so that the air inlet base 2 cannot interfere with the three-dimensional rotary swing motion of the air outlet base 1, and the running reliability of the product is fully ensured; meanwhile, when the air outlet base 1 runs, the second spherical surface 210 is always covered outside the first spherical surface 110, so that the running of products can be guaranteed to meet the safety test requirement. Of course, as an alternative, the first spherical surface 110 may be covered outside the second spherical surface 210, so that the beneficial effects of dust prevention, sundry prevention, product appearance aesthetic property assurance and product operation reliability assurance may be achieved.

Preferably, referring to fig. 1, 4 and 6, there is a gap L of 1mm-12mm between the first spherical surface 110 and the second spherical surface 210. Specifically, if the gap L between the first spherical surface 110 and the second spherical surface 210 is designed to be too small, friction phenomenon is easily generated between the air outlet base 1 and the air inlet base 2 during the swinging movement of the air outlet base 1, so that the smoothness of the swinging of the air outlet base 1 is affected; if the gap L between the first spherical surface 110 and the second spherical surface 210 is designed to be too large, the aesthetic property of the product is affected, and the dustproof and sundry-proof effects of the product are not guaranteed. Here, the clearance L between the first spherical surface 110 and the second spherical surface 210 is set to be 1mm-12mm, which is favorable for smoothness of the rotation and swing of the air outlet base 1, is favorable for ensuring the aesthetic property of the product and the effects of dust prevention and sundry prevention, has good comprehensive performance, and can meet the requirements of most application occasions. As a preferred embodiment of the present example, the gap L between the first spherical surface 110 and the second spherical surface 210 has a value of 1mm to 5mm.

Preferably, referring to fig. 1, 2, 4 and 6, the swing driving motor 31 has an output shaft 311, and the swing transmission pair 32 includes a cam 321 assembled on the output shaft 311, a connecting sleeve 322 sleeved on the cam 321, a connecting rod 323 connected with the connecting sleeve 322, and a universal ball hinge structure 324 sleeved on the connecting rod 323 and connected with the air intake base 2, the air intake base 1 is connected with the connecting rod 323, and the center of sphere of the first spherical surface 110, the center of sphere of the second spherical surface 210 and the center of sphere 3240 of the universal ball hinge structure 324 coincide. The cam 321 is mainly used for converting the rotation power output by the output shaft 311 into a rotary swing motion; the connecting sleeve 322 is mainly used for realizing the connection between the cam 321 and the connecting rod 323; the connecting rod 323 is mainly used for transmitting the rotary swing motion on the cam 321 to the air outlet base 1 so as to enable the air outlet base 1 to realize a three-dimensional shaking effect relative to the air inlet base 2; the universal spherical hinge structure 324 is mainly used for providing a supporting point for the swing motion of the connecting rod 323, so that the stability of the swing motion of the connecting rod 323 and the air outlet base 1 is fully ensured. In addition, in this embodiment, the first spherical surface 110, the second spherical surface 210 and the universal ball hinge structure 324 are concentric, so that it is convenient to ensure that the second spherical surface 210 is always covered outside the first spherical surface 110 when the swing mechanism 3 drives the air outlet base 1 to swing, and the gap L between the second spherical surface 210 and the first spherical surface 110 is always consistent, so that the air inlet base 2 is ensured not to interfere with the three-dimensional swing motion of the air outlet base 1, and thus the reliability and safety of product operation are fully ensured.

Preferably, the cam 321 is an eccentric. The connecting rod 323 and the air outlet base 1 can do three-dimensional conical motion relative to the output shaft 311 of the rotary swing driving motor 31 under the driving of the cam 321, so that the air outlet base 1 can realize the three-dimensional shaking effect. Specifically, in the fan head assembly 100 provided in this embodiment, under the driving of the swing driving motor 31, the swing transmission pair 32 may wind around the output shaft 311 of the swing driving motor 31 to make a stereoscopic conical movement, and since the air outlet base 1 is connected with the swing transmission pair 32, the air outlet base 1 will make a stereoscopic conical movement along with the swing transmission pair 32, so that the fan head body makes an outward conical movement relative to the fixed base, and through this simple 3D movement, the blowing range of the whole fan may be enlarged, and the effect that the small-size fan may also blow out a large-size fan may be achieved. Of course, alternatively, the cam 321 may take other shapes, for example, the cam 321 may be configured as an oval wheel or other irregular wheel, and in a specific application, the three-dimensional oscillating effect of different tracks may be achieved by configuring the shape of the cam 321 so that the air outlet base 1.

Specifically, referring to fig. 1, 4, 5 and 6, the central axis 3230 of the link 323 and the central axis 3110 of the output shaft 311 have an angle a, which preferably satisfies the relationship: a is more than 0 DEG and less than or equal to 30 deg. The included angle A is the swing angle of the power output by the swing mechanism 3. The larger the angle a is, the larger the swing range of the air outlet base 1 is, and the larger the air supply range is, but the larger the cam 321 and the connecting rod 323 are. Here, the included angle a is designed to be 0 ° -30 °, so that the requirement of the air supply range in most occasions can be met, and the cam 321 and the connecting rod 323 cannot be oversized, so that the miniaturization design of the product is facilitated, and meanwhile, the product is easier to design and manufacture.

As a preferred embodiment of this example, a=5° ±3°. Here, the included angle a is designed to be about 5 °, the sizes of the cam 321 and the connecting rod 323 are moderate, the miniaturization design of the product is facilitated, and the product is easy to design, manufacture and realize.

Preferably, referring to fig. 1, 2 and 6, the universal ball hinge structure 324 includes a universal ball sleeve 3241 connected to the air intake base 2, a universal ball 3242 sleeved on the connecting rod 323 and penetrating the universal ball sleeve 3241, and a ball fixing cover 3243 sleeved on one end of the universal ball 3242 and connected to the universal ball sleeve 3241. The center of rotation of the universal ball 3242 is the center 3240 of the universal ball hinge structure 324. The universal ball 3242 is tightly matched with the connecting rod 323 and can move along with the connecting rod 323, namely the universal ball 3242 and the connecting rod 323 are relatively static. The universal ball sleeve 3241 is used for supporting the universal ball 3242, and can radially limit the universal ball 3242 and axially limit one end of the universal ball 3242; the ball fixing cover 3243 is mainly used for axially limiting the other end of the universal ball 3242.

Specifically, a spherical inner wall is disposed in the universal ball sleeve 3241, and a plurality of protruding blocks distributed at intervals are convexly disposed at an outer side of the universal ball head 3242, and each protruding block is respectively abutted against the spherical inner wall of the universal ball sleeve 3241. Here, the universal ball 3242 is in contact fit with the universal ball sleeve 3241 through a plurality of protruding blocks, which is beneficial to reducing resistance of the universal ball 3242 when moving along with the connecting rod 323.

Preferably, referring to fig. 1, 2 and 6, the connecting rod 323 includes a first rod 3231 and a second rod 3232 with an outer diameter smaller than that of the first rod 3231, an end portion of the first rod 3231 far away from the second rod 3232 is sleeved on the connecting sleeve 322, the universal ball hinge structure 324 is sleeved on the second rod 3232, and the air outlet base 1 is connected with the second rod 3232. The universal ball 3242 is tightly sleeved on the second rod 3232. Here, the outer diameter of the second rod 3232 is designed to be smaller than that of the first rod 3231, which is advantageous for reducing the load of the swing driving motor 31 on the one hand and for miniaturizing the fan head assembly 100 on the other hand.

Preferably, the connecting rod 323 is of a hollow structure, i.e., the connecting rod 323 has a hollow inner bore penetrating along its axial direction. Here, the first rod body 3231 and the second rod body 3232 are both provided in a hollow structure, which is advantageous in reducing the weight of the link 323, thereby facilitating the reduction of the load of the swing drive motor 31.

Preferably, referring to fig. 1, 2, 4 and 6, the air intake base 2 includes an air intake mesh enclosure 21 and a mounting bracket 22 mounted in the air intake mesh enclosure 21, the second spherical surface 210 is disposed on the air intake mesh enclosure 21, the swing driving motor 31 is connected with one end of the mounting bracket 22, and the universal ball hinge structure 324 is connected with the other end of the mounting bracket 22. Here, the swing driving motor 31 and the universal ball hinge structure 324 are mounted on the air intake screen 21 through the mounting bracket 22, so that the flexible design of the mounting bracket 22 is convenient to meet the assembly requirements of different swing driving motors 31, the universal ball hinge structure 324 and the air intake screen 21, thereby facilitating the simplification of the mounting structure of the swing driving motor 31, the universal ball hinge structure 324 and the air intake screen 21.

Preferably, the mounting bracket 22 includes a first support arm connected to the swing driving motor 31, a second support arm disposed opposite to the first support arm at a distance, and a connecting arm having two ends connected to one end of the first support arm and one end of the second support arm, respectively, where the universal ball hinge structure 324 and the fixed base are connected to the second support arm, and the connecting rod, the cam 321 and the connecting sleeve 322 are located between the first support arm and the second support arm, i.e. the second rod 3232, the cam 321 and the connecting sleeve 322 are located between the first support arm and the second support arm, so as to facilitate improving the structural compactness of the product, thereby facilitating the miniaturization design of the product.

Preferably, the first support arm and the second support arm are arranged in parallel at intervals, and the connecting arm is vertically connected between the first support arm and the second support arm.

Preferably, referring to fig. 1, 2, 4 and 6, the air intake screen 21 includes a screen body 211, a middle frame 212 mounted at one end of the screen body 211, and a sleeve 213 protruding into the screen body 211, wherein the mounting bracket 22 and the swing driving motor 31 are both accommodated in the sleeve 213, and the second spherical surface 210 is disposed on the middle frame 212. The sleeve 213 is mainly used for preventing excessive parts from being directly exposed, thereby being beneficial to improving the appearance and the aesthetic property of the product. Since the mesh cover body 211 needs to be provided with a mesh structure for ventilation; therefore, the middle frame 212 without the grid structure is added, and the second spherical surface 210 is manufactured and formed on the middle frame 212, so that the processing difficulty of the second spherical surface 210 is low, and the processing cost is low. Of course, in a specific application, the second spherical surface 210 may be disposed on the mesh enclosure body 211 under the condition of manufacturing and molding.

Preferably, the sleeve 213 is integrally formed with the net cover body 211, so that the accuracy of the product size is advantageously ensured, and the assembling process of the sleeve 213 and the net cover body 211 can be omitted.

Preferably, referring to fig. 1 and 6, the air intake base 2 further includes a plastic connector 23, and the mounting bracket 22 is connected to the sleeve 322 by the plastic connector 23. Here, the use of the plastic connector 23 to connect the mounting bracket 22 with the sleeve 213 facilitates preventing the mounting bracket 22 from being rigidly connected directly to the sleeve 213, thereby facilitating reduction of vibrations transmitted from the mounting bracket 22 to the sleeve 213.

Preferably, referring to fig. 1 and 6, the air intake base 2 further includes a vibration damping pad 24, and the vibration damping pad 24 includes a first vibration damping portion disposed between the plastic connector 23 and the mounting bracket 22, a second vibration damping portion disposed between the mounting bracket 22 and the universal ball hinge structure 324, and a third vibration damping portion extending to abut against an inner side wall of the sleeve 213. The first vibration damping portion is mainly used for reducing vibration transmission between the mounting bracket 22 and the plastic connecting piece 23, the second vibration damping portion is mainly used for reducing vibration transmission between the mounting bracket 22 and the universal ball hinge structure 324, and the third vibration damping portion is mainly used for reducing vibration transmission between the sleeve 213 and the mounting bracket 22 and the plastic connecting piece 23. Here, by designing the vibration damping pad 24, the vibration transmitted from the swing mechanism 3 to the base of the rear net 113 can be advantageously reduced, thereby improving the running stability of the product.

Preferably, referring to fig. 1, 3, 4 and 6, the air outlet base 1 includes a fan housing 11 and fan blades 12 disposed in the fan housing 11, the fan head assembly 100 further includes an air outlet driving motor 4 connected with the fan blades 12 for driving the fan blades 12 to rotate, the first motor includes a stator 41 stationary with respect to the fan housing 11 and a rotor 42 rotationally connected with the stator 41 and relatively stationary with respect to the fan blades 12, and the fan housing 11 is connected with the swing transmission pair 32. The fan housing 11 is specifically connected to a link 323 of the swing transmission pair 32. The stator 41 being stationary relative to the fan housing 11 means that: when the fan is operated, no relative movement is generated between the stator 41 and the fan housing 11. The relative rest of rotor 42 with respect to fan blades 12 means: no relative movement between the rotor 42 and the blades 12 occurs during fan operation. To achieve the stator 41 and the fan housing 11 being relatively stationary, one of the following two arrangements may be adopted in a specific application: the first arrangement is that the stator 41 is assembled and connected with the fan housing 11; in the second arrangement, the stator 41 and the fan housing 11 are not in assembly connection, the stator 41 and the fan housing 11 are respectively connected with the rotary pendulum transmission pair 32, and thus, the stator 41 can be indirectly connected with the fan housing 11 through the rotary pendulum transmission pair 32. In this embodiment, since the fan housing 11 and the stator 41 are in a relatively static relationship, the rotor 42 is connected with the stator 41, and the rotor 42 is connected with the fan blades 12, the rotation and swing mechanism 3 can simultaneously drive the fan housing 11, the fan blades 12 and the air-out driving motor 4 to perform rotation and swing motion together, so that the fan housing 11 and the fan blades 12 can perform three-dimensional rotation and swing motion together under the driving of the rotation and swing mechanism 3, and the cool and dazzling feeling is quite sufficient when the product runs, the problems of serious homogenization and no differential selling point of the fan product are well solved, and the popularization and the sales of the product are facilitated. The fan housing 11 and the fan blades 12 perform rotary swinging movement together, so that the range of an air supply area of the fan is effectively enlarged, the rotary output of wind direction is realized, and the wind sense output by the fan is softer and more natural.

Preferably, referring to fig. 1, 3, 4 and 6, the air-out driving motor 4 is installed in the fan housing 11, and the stator 41 is connected to the fan housing 11. In this scheme, there is a direct connection relationship between the fan housing 11 and the swinging mechanism 3, and there is no direct connection relationship between the stator 41 and the swinging mechanism 3, but because the stator 41 is connected with the fan housing 11, it not only meets the design requirement that the stator 41 and the fan housing 11 are relatively static, but also meets the design requirement that the stator 41 and the fan housing 11 can swing together under the driving of the swinging mechanism 3. Of course, in a specific application, the installation manner of the air-out driving motor 4 is not limited to this, for example: in the case where the air-out driving motor 4 is installed in the hood 11, the stator 41 may be designed in such a manner as to connect the hood 11 and the swing transmission pair 32 at the same time, or the stator 41 may be designed in such a manner as to connect not to the hood 11 but to connect directly to the swing transmission pair 32; alternatively, the air-out driving motor 4 may be mounted outside the fan housing 11 and the stator 41 and the swing transmission pair 32 may be connected, and these alternatives may satisfy both the design requirement of making the stator 41 and the fan housing 11 relatively stationary and the design requirement of making the stator 41 and the fan housing 11 capable of swinging together under the driving of the swing mechanism 3.

Preferably, referring to fig. 1, 3 and 6, the stator 41 is connected to the fan housing 11 through a connection bracket 5, so that the flexible design of the connection bracket 5 is convenient to meet the assembly requirements of different air-out driving motors 4 and the fan housing 11, thereby facilitating the simplification of the installation structure of the air-out driving motors 4 and the fan housing 11. Of course, alternatively, the stator 41 may be designed in the form of a direct connection to the fan housing 11 without the need to design the connection bracket 5.

Preferably, referring to fig. 1 and 3-6, the wind housing 11 includes a main housing 111, a front net 112 assembled to one end of the main housing 111, and a rear net 113 assembled to the other end of the main housing 111, the rear net 113 being connected to the swing transmission pair 32. The rear net 113 is specifically connected to a link 323 of the swing transmission pair 32. The fan blades 12 and the air-out driving motor 4 are accommodated in a cavity surrounded by the main casing 111, the front net 112 and the rear net 113. The front net 112 is the air outlet side of the air outlet base 1, and the rear net 113 is the air inlet side of the air outlet base 1. Since the front net 112 and the rear net 113 are both connected to the main housing 111, when the swing transmission pair 32 drives the main housing 111 to swing, the front net 112 and the rear net 113 perform swing motion together.

In this embodiment, the stator 41 is connected to the rear net 113 through the connection bracket 5; of course, in a specific application, the stator 41 may also be directly connected to the rear net 113.

Preferably, the first spherical surface 110 is provided on the main housing 111. Because the front net 112 and the back net 113 are both required to be designed with a grid structure convenient for air circulation; the main housing 111 does not need to be designed with a grid structure, and the structure is relatively simple, so that the manufacturing and molding of the first spherical surface 110 on the main housing 111 has the advantages of small processing difficulty and low processing cost. Of course, in a specific application, the first spherical surface 110 is not limited to the design manner of the main housing 111, and for example, the first spherical surface 110 may be provided on the main housing 111.

Further, referring to fig. 6, the present embodiment further provides a fan, which includes the fan head assembly 100 and the base assembly 200 connected to the fan head assembly 100, and the air intake base 2 is mounted on the base assembly 200. The base assembly 200 is used primarily to support the fan head assembly 100 for placement of the fan in an application. The fan provided in this embodiment, due to the adoption of the fan head assembly 100, on one hand, enlarges the range of the air supply area of the fan, and realizes the rotation output of the wind direction, so that the wind sense output by the fan is softer and more natural, on the other hand, the cost of the product is reduced, the movement reliability of the product is improved, on the other hand, the cool and dazzling sense is quite sufficient when the fan is operated, the differentiated selling point of the product is increased, and the popularization and the sales of the product are facilitated.

Preferably, referring to fig. 6, the base assembly 200 includes a base body 201 and a head shaking mechanism 202 mounted on the base body 201 for driving the fan head assembly 100 to reciprocally rotate, and the air intake base 2 is connected to the head shaking mechanism 202. The pan mechanism 202 specifically includes a pan motor and a crank and rocker mechanism. The oscillating mechanism 202 is arranged to enable the fan head assembly 100 to perform plane oscillating motion, thereby being beneficial to expanding the range of the air supply area of the product.

Preferably, in this embodiment, the fan is a desk fan or a floor fan, which of course, in specific applications, the fan provided in this embodiment may also be a floor fan or a wall fan, that is, the fan head assembly 100 of this embodiment may be applied to a floor fan, a desk fan, a floor fan, and a wall fan, and the floor fan, the desk fan, the floor fan, and the wall fan adopting the fan head assembly 100 of this embodiment may all achieve the beneficial effects of expanding the range of the air supply area, making the output wind sense of the fan softer and more natural, improving the reliability of product movement, improving the cool feeling of product operation, and increasing the differentiated selling points of products.

The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.

Claims

1. The fan head assembly comprises an air outlet base and an air inlet base arranged on one side of the air outlet base, and is characterized by further comprising a swing mechanism for driving the air outlet base to perform swing motion relative to the air inlet base, wherein the swing mechanism comprises a swing driving motor assembled on the air inlet base and a swing transmission pair in transmission connection with the swing driving motor and the air outlet base; the rotary swing driving motor is provided with an output shaft, and the rotary swing transmission pair comprises a cam assembled on the output shaft, a connecting sleeve sleeved on the cam, a connecting rod connected with the connecting sleeve and a universal spherical hinge structure sleeved on the connecting rod and connected with the air inlet base; the air inlet base comprises an air inlet net cover and a mounting bracket arranged in the air inlet net cover, and the air inlet net cover comprises a net cover body, a middle frame arranged at one end of the net cover body and a sleeve convexly arranged in the net cover body; the air inlet base further comprises a plastic connecting piece and a vibration reduction pad, the mounting bracket is connected with the sleeve through the plastic connecting piece, and the vibration reduction pad comprises a first vibration reduction part arranged between the mounting bracket and the sleeve, a second vibration reduction part arranged between the mounting bracket and the universal spherical hinge structure and a third vibration reduction part which extends to be abutted against the inner side wall of the sleeve; the connecting rod is of a hollow structure.

2. The fan head assembly of claim 1, wherein the air outlet base has a first spherical surface, the air inlet base has a second spherical surface in clearance fit with the first spherical surface, the center of the first spherical surface coincides with the center of the second spherical surface, and the first spherical surface is coated outside the second spherical surface or the second spherical surface is coated outside the first spherical surface.

3. The fan head assembly of claim 2, wherein the first spherical surface and the second spherical surface have a gap therebetween of 1mm-12 mm.

4. A fan head assembly as claimed in claim 2 or 3, wherein the air outlet base is connected to the connecting rod, and the centers of the first spherical surface, the second spherical surface and the universal spherical hinge structure are coincident.

5. The fan head assembly of claim 4, wherein the cam is an eccentric, and the central axis of the connecting rod and the central axis of the output shaft have an included angle a, and the included angle a satisfies the relationship: a is more than 0 DEG and less than or equal to 30 deg.

6. The fan head assembly of claim 5, wherein a = 5 ° ± 3 °.

7. The fan head assembly of claim 4, wherein the universal ball hinge structure comprises a universal ball sleeve connected with the air inlet base, a universal ball sleeved on the connecting rod and penetrating through the universal ball sleeve, and a ball fixing cover sleeved on one end of the universal ball and connected with the universal ball sleeve.

8. The fan head assembly of claim 4, wherein the connecting rod comprises a first rod body and a second rod body with an outer diameter smaller than that of the first rod body, an end part of the first rod body far away from the second rod body is sleeved on the connecting sleeve, the universal ball hinge structure is sleeved on the second rod body, and the air outlet base is connected with the second rod body.

9. The fan head assembly of claim 4, wherein the second spherical surface is disposed on the air intake net cover, the swing driving motor is connected to one end of the mounting bracket, and the universal spherical hinge structure is connected to the other end of the mounting bracket.

10. The fan head assembly of claim 9, wherein the mounting bracket and the swing drive motor are both housed within the sleeve, and the second sphere is disposed on the center frame.

11. A fan head assembly according to any one of claims 1 to 3, wherein the air outlet base comprises a fan housing and fan blades arranged in the fan housing, the fan head assembly further comprises an air outlet driving motor connected with the fan blades for driving the fan blades to rotate, the air outlet driving motor comprises a stator which is static relative to the fan housing and a rotor which is rotationally connected with the stator and is static relative to the fan blades, and the fan housing is connected with the rotary swing transmission pair.

12. The fan head assembly of claim 11, wherein the air outlet driving motor is arranged in the fan cover, and the stator is connected with the fan cover and/or the swing transmission pair; or alternatively, the process may be performed,

13. The fan head assembly of claim 12 wherein said fan housing includes a main housing, a front net mounted to one end of said main housing, and a rear net mounted to the other end of said main housing, said rear net being connected to said swing mechanism.

14. A fan comprising a fan head assembly according to any one of claims 1 to 13 and a base assembly connected to the fan head assembly, the air intake base being mounted to the base assembly.

15. The fan of claim 14 wherein said base assembly includes a base body and a head shaking mechanism mounted to said base body for driving said fan head assembly to reciprocate, said air intake base being coupled to said head shaking mechanism.

16. A fan according to claim 14 or 15, wherein the fan is a table or desk or floor or wall fan.