CN111980976A

CN111980976A - Screen panel structure and have its electric fan

Info

Publication number: CN111980976A
Application number: CN202011063074.1A
Authority: CN
Inventors: 柳洲; 陈宇强; 余丛; 饶长健; 梁浩; 梁文龙
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2020-11-24

Abstract

The invention provides a mesh enclosure structure and an electric fan with the mesh enclosure structure, wherein the mesh enclosure structure is used for being connected with a fan, and comprises: the first grating is provided with a mounting port, and a motor of the fan is mounted at the mounting port; the second grating is arranged on the first grating, and the second grating and the first grating enclose an accommodating cavity which is used for accommodating fan blades of a fan; and the elastic piece is arranged on the first grating. Through the technical scheme provided by the invention, the problem that the screen structure of the electric fan in the prior art shakes seriously when the electric fan works can be solved.

Description

Screen panel structure and have its electric fan

Technical Field

The invention relates to the technical field of small household appliances, in particular to a mesh enclosure structure and an electric fan with the mesh enclosure structure.

Background

At present, in the existing fan production line, most fans are composed of a machine head, a fan, a mesh enclosure structure, a support frame and a base, and fan blades rotate under the driving of a motor and pass through the mesh enclosure to exhaust air in the axial flow direction.

However, the fan blades are affected by wind pressure, the motor and the injection molding process in the process of driving and running of the motor to generate unbalanced motion, the unbalanced inertial excitation of the motion acts on the head assembly, the mesh enclosure is further affected to shake, the motor frame is affected to vibrate through shaking of the mesh enclosure, and even the resonance of the whole machine is seriously caused.

Disclosure of Invention

The invention mainly aims to provide a screen structure and an electric fan with the same, so as to solve the problem that the screen structure shakes seriously when the electric fan works in the prior art.

In order to achieve the above object, according to an aspect of the present invention, there is provided a mesh enclosure structure for being connected to a fan, the mesh enclosure structure comprising: the first grating is provided with a mounting port, and a motor of the fan is mounted at the mounting port; the second grating is arranged on the first grating, and the second grating and the first grating enclose an accommodating cavity which is used for accommodating fan blades of a fan; and the elastic piece is arranged on the first grating.

Further, the first grid includes: the first ribs are connected with the second grating; the end cover is arranged on one side, away from the second grating, of the first rib, a mounting opening is formed in the end cover, and the elastic piece is arranged on the end cover.

Further, the end cover is provided with an installation groove, and the elastic piece is arranged in the installation groove.

Further, the elastic member is located between the end cap and the first bead.

Further, the elastic piece is of an annular structure, and the annular structure is arranged around the outer edge of the end cover.

Further, the elastic piece is a ring gasket, and a buffer groove is formed in the ring gasket.

Furthermore, the elastic part is a spring, one end of the spring is connected with the end cover, and the other end of the spring is connected with the first rib.

Further, the end cover is provided with a first surface and a second surface which are oppositely arranged, the second surface is arranged on one side, away from the second grid, of the first surface, the elastic piece is provided with a third surface and a fourth surface which are oppositely arranged, the fourth surface is arranged on one side, away from the second grid, of the third surface, the first ribs are provided with a fifth surface and a sixth surface which are oppositely arranged, and the sixth surface is arranged on one side, away from the second grid, of the fifth surface; the first surface and the third surface are in smooth transition; and/or the third surface and the fifth surface are in smooth transition.

Further, the first surface and the third surface are arranged flush; and/or the third surface and the fifth surface are arranged flush.

Further, the elastic member is mounted on the first grill using an encapsulation process.

Furthermore, be provided with first joint structure on the first grid, be provided with the second joint structure with first joint structure looks adaptation on the elastic component, first joint structure and second joint structure joint are so that the elastic component installs on first grid.

Furthermore, a first bayonet is arranged on one side of the elastic piece, a second bayonet is arranged on the other side of the elastic piece, a first clamping hook is arranged on the first rib, and the first clamping hook is clamped and matched with the first bayonet; the end cover is provided with a second clamping hook, and the second clamping hook is clamped and matched with the second bayonet.

Further, the screen panel structure still includes first retaining member and second retaining member, and first retaining member passes the lateral wall of first rib and is connected with one side of elastic component, and the second retaining member passes the lateral wall of end cover and is connected with the opposite side of elastic component.

According to another aspect of the present invention, there is provided an electric fan including: the mesh enclosure structure is the mesh enclosure structure provided by the mesh enclosure structure; the fan blade is arranged in the mesh enclosure structure, and the motor is in driving connection with the fan blade; the cover shell is arranged on the mesh enclosure structure, and the motor is arranged on the cover shell; the support frame, the housing sets up on the support frame.

By applying the technical scheme of the invention, the elastic part is arranged on the first grating, and the motor of the fan is connected with the first grating, so that the vibration and shaking conditions of the first grating can be reduced under the elastic buffering action of the elastic part, and further the vibration and shaking conditions of the second grating can be reduced. Therefore, through the screen structure that this embodiment provided, can solve the serious problem of rocking of screen structure when the electric fan among the prior art is worked.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view showing a structure of an electric fan provided according to an embodiment of the present invention;

fig. 2 shows a schematic structural diagram of a first grid provided according to an embodiment of the invention;

FIG. 3 illustrates a side view of a first grid provided in accordance with an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of an elastic member provided with a second clamping structure according to an embodiment of the present invention;

fig. 5 illustrates a schematic structural view of a first grill provided with first and second locking members according to an embodiment of the present invention.

Wherein the figures include the following reference numerals:

11. a first grid; 111. a first rib; 1111. a fifth surface; 1112. a sixth surface; 112. an end cap; 1121. a first surface; 1122. a second surface; 12. a second grid; 13. an elastic member; 131. a third surface; 132. a fourth surface; 133. a second clamping structure; 20. a motor; 30. a fan blade; 40. a cover; 50. a housing; 60. a support frame; 71. a first locking member; 72. and a second locking member.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1 to 5, an embodiment of the present invention provides a mesh enclosure structure, which is used for being connected to a fan. The mesh enclosure structure comprises a first grating 11, a second grating 12 and an elastic piece 13, wherein the first grating 11 is provided with a mounting opening, and a motor 20 of the fan is mounted at the mounting opening. The second grid 12 is arranged on the first grid 11, the second grid 12 and the first grid 11 enclose to form an accommodating cavity, and the accommodating cavity is used for accommodating fan blades 30 of the fan. The elastic member 13 is disposed on the first grill 11.

Adopt the screen panel structure that this embodiment provided, owing to be provided with elastic component 13 on first grid 11, the motor 20 and the first grid 11 of fan are connected, like this, can reduce the vibrations of first grid 11 and rock the condition under the elastic cushioning effect of elastic component 13, and then also can reduce the vibrations of second grid 12 and rock the condition. Therefore, through the screen structure that this embodiment provided, can solve the serious problem of rocking of screen structure when the electric fan among the prior art is worked.

Specifically, the first grid 11 in this embodiment includes a first rib 111 and an end cover, the first rib 111 is connected to the second grid 12, and the end cover is disposed on a side of the first rib 111 away from the second grid 12. The end cap is provided with a mounting opening, and the elastic piece 13 is arranged on the end cap. Specifically, the motor 20 of fan is connected with the end cover, adopts such structure setting, can be convenient for reduce the vibrations of first grid 11 and the condition of rocking better under the elastic cushioning effect of elastic component 13.

Specifically, a mounting groove may be provided on the end cover, and the elastic member 13 is disposed in the mounting groove. With this arrangement, the mounting stability of the elastic member 13 can be improved.

In this embodiment, the elastic member 13 is located between the end cap and the first rib 111. Adopt such structure setting, can avoid the vibrations on the end cover with rock on transmitting to first rib 111, and then reduced the condition of rocking of first rib 111, also can reduce the condition of rocking of second grid 12 better. Specifically, the second ribs in this embodiment are connected to the first ribs 111, the first ribs 111 are plural, the plural first ribs 111 are arranged around the periphery of the end cover at intervals, the second ribs are also plural, and the plural second ribs are arranged at intervals, so that the indoor air can flow between the gaps of the plural first ribs 111 and the gaps of the plural second ribs.

In this embodiment, the elastic member 13 is a ring-shaped structure, and the ring-shaped structure is disposed around the outer edge of the end cap. Adopt such structure setting, can be convenient for play absorbing effect better to better avoid vibrations on the end cover with rock on transmitting to first rib 111, and then reduced the condition of rocking of screen panel structure totality better from the whole.

Specifically, the elastic member 13 may be an annular gasket, and the annular gasket is provided with a buffer groove. Specifically, the buffering recess can be a plurality of, and a plurality of buffering recess switching-over intervals set up, and when the end cover received the vibrations influence of motor 20 and took place vibrations or rock, the buffering recess effectively played the elastic buffer effect because of receiving the extrusion, and then can guarantee to reduce the vibrations of first grid 11 and rock the condition.

Alternatively, the elastic member 13 may be a spring, one end of which is connected to the end cap, and the other end of which is connected to the first rib 111. By adopting the structure, under the action of the elastic force of the spring, the damping effect can be effectively realized.

Specifically, the end cap has a first surface 1121 and a second surface 1122 which are oppositely arranged, the second surface 1122 is arranged on the side of the first surface 1121, which is away from the second grid 12, the elastic member 13 has a third surface 131 and a fourth surface 132 which are oppositely arranged, the fourth surface 132 is arranged on the side of the third surface 131, which is away from the second grid 12, the first ribs 111 have a fifth surface 1111 and a sixth surface 1112 which are oppositely arranged, and the sixth surface 1112 is arranged on the side of the fifth surface 1111, which is away from the second grid 12.

Specifically, the first surface 1121 and the third surface 131 can be in smooth transition; alternatively, the third surface 131 and the fifth surface 1111 are smooth transitions; alternatively, the first surface 1121 and the third surface 131 are in smooth transition, and the third surface 131 and the fifth surface 1111 are in smooth transition. Specifically, the smooth transition structure here means that two adjacent surfaces can be arranged in a flush manner or in a circular arc transition manner at the joint, so that the consistency and the flatness of the appearance structure can be improved, and the appearance attractiveness can be improved.

Preferably, the first surface 1121 and the third surface 131 are smoothly transited, and the third surface 131 and the fifth surface 1111 are smoothly transited in the present embodiment. By adopting the structure, the consistency and the flatness of the appearance structures of the end cover, the elastic piece 13 and the first ribs 111 can be ensured, and the appearance attractiveness is ensured.

Specifically, the first surface 1121 and the third surface 131 may be disposed flush; alternatively, the third surface 131 and the fifth surface 1111 are disposed flush; alternatively, the first surface 1121 and the third surface 131 are disposed flush, and the third surface 131 and the fifth surface 1111 are disposed flush.

Preferably, in the present embodiment, the first surface 1121, the third surface 131, and the fifth surface 1111 are all planar structures, the first surface 1121 and the third surface 131 are disposed flush, and the third surface 131 and the fifth surface 1111 are disposed flush. With such a structural arrangement, the consistency and flatness of the appearance structure of the end cap, the elastic member 13 and the first ribs 111 can be further ensured.

Specifically, the mesh enclosure structure of this embodiment adopts the grid layered design, the inertia excitation that transmits from fan blade 30 can influence motor 20 and take place the vibration, the vibration that motor 20 produced can influence the mounting bracket of motor 20 in step, because front end housing 50 that motor 20 installed is fixed with the mesh enclosure structure, and the mesh enclosure structure's of fan volume and weight are generally very big, slight rocking of mesh enclosure structure can directly cause rocking of complete machine, utilize the elastic material layering design mesh enclosure of low solid frequency to isolate the shroud 40 vibration that comes from motor 20 installation. The vibration of the mesh enclosure structure can be greatly weakened, so that the vibration of the mesh enclosure structure cannot reach the resonance fixed frequency of the whole machine. Thereby eliminating the resonance of the whole machine and achieving the stable operation of the electric fan.

The mesh enclosure structure in this embodiment is applied to an electric fan, and the electric fan further includes a mesh enclosure 40, a housing 50, and a support bracket 60. When the motor 20 starts to drive the fan blades 30 to rotate, the fan blades 30 drive the axial flow of air through rotation to form rotating wind, so that the air can also generate a reverse thrust to the fan blades 30, and the frequency of the reaction force is consistent with the blade frequency of the fan blades 30. Meanwhile, the blades 30 generate inertia shaking excitation due to unbalanced motion, and the frequency of the inertia force is the same as the inherent fundamental frequency of the blades 30. Because the reverse thrust of the air is small, the influence on the electric fan is small. The main shaking point is thus caused by the imbalance of the movement of the fan blades 30.

The fan blade 30 is a vibration source of the whole fan, the vibration source reversely transmits vibration excitation to the motor 20 through the fan blade 30 fixing piece, the motor 20 transmits inertia excitation to the cover 50, the first grid 11 and the second grid 12 through the cover 40, and the vibration can cause the support frame 60 at the first visual angle of a user, the first grid 11 and the second grid 12 to shake seriously. The shaking is mainly caused by the inertia excitation of the fan blades 30, and the inertia excitation is the same as the fundamental frequency of the fan, so that the shaking of the whole machine can be effectively reduced by adjusting the fundamental frequency of the fan. Because the influence of vibration on the mesh enclosure structure and the support frame 60 is the most serious in the transmission process, the vibration is transmitted from the mesh enclosure structure to the support frame 60, and the vibration of the mesh enclosure structure is the most serious, so that the vibration of the whole machine can be effectively weakened by reducing the vibration fixing frequency of the mesh enclosure structure. The elastic piece 13 is added on the basis of the original mesh enclosure structure by a method of encapsulation, so that the natural frequency of the mesh enclosure structure is reduced, and the effects of vibration isolation and vibration reduction are achieved.

The first grid 11 in this embodiment comprises an elastic element 13, a first rib 111, and an end cap, and the vibration excitation is transmitted from the cover 40 to the end cap, and the elastic element 13 is encapsulated in the cover structure. According to experiments, the electric fan shakes most seriously at a high gear, the vibration guided by the inertia excitation appears as left-right and up-down shaking when appearing on the mesh enclosure structure, and the frequency of the corresponding mesh enclosure structure corresponds to 3/4 grades respectively. As shown in the table below, after the elastic member 13 is added, the dither fixed frequency of the mesh cap is decreased to 7/17.

	Original net cover structure	Mesh enclosure structure with elastic piece 13 added
			Third order (HZ)	21.52	7.42
Fourth order (HZ)	35.65	17.06

According to experimental tests, after the mesh enclosure structure with the elastic piece 13 is replaced, the maximum shaking of the fan blade 30 is reduced to 0.522mm from 1.95mm, and the shaking is obviously reduced.

The elastic member 13 in this embodiment includes but is not limited to elastic silicone member, and its structural shape may be a form of spring shock absorption. The elastic element 13 is preferably connected to the mesh cap by means of a rubber-coating process. But is not limited to the process scheme. Wherein the modes of welding, structural member buckle and screw are all available. The outer surface of the elastic member 13 should be kept in the same plane with the grid ribs and the outer surface of the grid end cover to ensure the consistency of the appearance structure, but is not limited thereto. The inner surface of the inner cavity can be concave. Specifically, the elastic member 13 in this embodiment may be located at any position of the first grid 11, and is not limited to the end cover.

In one embodiment, the elastic member 13 may be mounted on the first grill 11 using an encapsulation process.

In another embodiment, the first grid 11 is provided with a first clamping structure, the elastic member 13 is provided with a second clamping structure 133 adapted to the first clamping structure, and the first clamping structure and the second clamping structure 133 are clamped to enable the elastic member 13 to be installed on the first grid 11. The structure is simple, the connection is reliable, and the production and the manufacture are convenient.

Specifically, in this embodiment, a first bayonet is arranged on one side of the elastic member 13, a second bayonet is arranged on the other side of the elastic member 13, and a first hook is arranged on the first rib 111 and is in clamping fit with the first bayonet; the end cover 112 is provided with a second hook, and the second hook is in clamping fit with the second bayonet. With this arrangement, the reliability of connection can be further improved.

In another embodiment, the mesh structure further includes a first locking member 71 and a second locking member 72, the first locking member 71 is connected to one side of the elastic member 13 through the side wall of the first rib 111, and the second locking member 72 is connected to the other side of the elastic member 13 through the side wall of the cap 112. By adopting the structure, the first locking part 71 and the second locking part 72 can be prevented from being exposed, the smoothness of the appearance is ensured, and the stability of the elastic part 13 is ensured. Specifically, the end surface of the first locking member 71 in this embodiment is flush with the side wall of the first rib 111, and the end surface of the second locking member 72 is flush with the side wall of the end cap 112, so as to further improve the flatness of the appearance of the product. First locking member 71 and second locking member 72 may each be a countersunk screw.

Another embodiment of the present invention provides an electric fan, which includes a mesh enclosure structure, blades, a motor, a housing, and a support frame. The mesh enclosure structure is the mesh enclosure structure provided by the above embodiment; the fan blade sets up in the screen panel structure, and the motor is connected with the fan blade drive. The housing sets up on the screen panel structure, and the motor is installed on the housing, and the housing setting is on the support frame.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects: through the structure of adjusting the screen panel structure, the inertia excitation that can weaken the fan blade and provide has reduced the shake of fan screen panel circle, the rocking of fan bracing piece, has avoided the complete machine resonance.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a screen panel structure, its characterized in that, screen panel structure is used for being connected with the fan, screen panel structure includes:

a first grill (11), the first grill (11) having a mounting opening, a motor (20) of the fan being mounted at the mounting opening;

the second grating (12) is arranged on the first grating (11), an accommodating cavity is enclosed by the second grating (12) and the first grating (11), and the accommodating cavity is used for placing fan blades (30) of the fan;

an elastic member (13) disposed on the first grill (11).

2. The screen structure according to claim 1, characterized in that said first grille (11) comprises:

-first ribs (111) connected to said second grid (12);

the end cover (112) is arranged on one side, far away from the second grid (12), of the first rib (111), the mounting opening is formed in the end cover (112), and the elastic piece (13) is arranged on the end cover (112).

3. The mesh enclosure structure of claim 2, wherein the end cap (112) is provided with a mounting groove, and the elastic member (13) is disposed in the mounting groove.

4. The mesh enclosure structure of claim 2, wherein the elastic member (13) is located between the end cap (112) and the first rib (111).

5. The mesh enclosure structure of claim 2, wherein the resilient member (13) is an annular structure disposed around an outer edge of the end cap (112).

6. The mesh enclosure structure of claim 2, wherein the elastic member (13) is an annular washer having a buffer groove formed therein.

7. The mesh enclosure structure of claim 2, wherein the elastic member (13) is a spring, one end of which is connected to the end cap (112), and the other end of which is connected to the first rib (111).

8. A screen structure according to claim 2, wherein the end cap (112) has a first surface (1121) and a second surface (1122) which are oppositely disposed, the second surface (1122) being disposed on a side of the first surface (1121) remote from the second grid (12), the resilient member (13) has a third surface (131) and a fourth surface (132) which are oppositely disposed, the fourth surface (132) being located on a side of the third surface (131) remote from the second grid (12), the first rib (111) has a fifth surface (1111) and a sixth surface (1112) which are oppositely disposed, the sixth surface (1112) being located on a side of the fifth surface (1111) remote from the second grid (12);

the first surface (1121) and the third surface (131) are smooth transitions; and/or the presence of a gas in the gas,

the third surface (131) and the fifth surface (1111) are smooth transitions.

9. The mesh enclosure structure of claim 8,

the first surface (1121) and the third surface (131) are arranged flush; and/or the presence of a gas in the gas,

the third surface (131) and the fifth surface (1111) are arranged flush.

10. The screen structure according to any one of claims 1 to 9, characterized in that the elastic member (13) is mounted on the first grille (11) using an encapsulation process.

11. The mesh enclosure structure of claim 1, wherein the first grid (11) is provided with a first clamping structure, the elastic member (13) is provided with a second clamping structure (133) adapted to the first clamping structure, and the first clamping structure and the second clamping structure (133) are clamped to enable the elastic member (13) to be mounted on the first grid (11).

12. The mesh enclosure structure of claim 4, wherein one side of the elastic member (13) is provided with a first bayonet, the other side of the elastic member (13) is provided with a second bayonet, the first rib (111) is provided with a first hook, and the first hook is in snap fit with the first bayonet; and a second clamping hook is arranged on the end cover (112), and the second clamping hook is clamped and matched with the second bayonet.

13. The screen structure of claim 4, further comprising a first fastening member (71) and a second fastening member (72), wherein the first fastening member (71) is connected to one side of the elastic member (13) through a side wall of the first rib (111), and the second fastening member (72) is connected to the other side of the elastic member (13) through a side wall of the cap (112).

14. An electric fan, characterized in that the electric fan comprises:

a mesh enclosure structure, said mesh enclosure structure being as claimed in any one of claims 1 to 13;

the fan blade (30) is arranged in the mesh enclosure structure, and the motor (20) is in driving connection with the fan blade (30);

the cover shell (50) is arranged on the net cover structure, and the motor (20) is installed on the cover shell (50);

the supporting frame (60), the housing (50) sets up on the supporting frame (60).