Outlet grille and air outlet device

Abstract

This application generally relates to household appliances. Specifically, it relates to an air outlet grille and an air outlet device. Among them, the air outlet grille includes circumferential ribs and radial ribs. A plurality of the circumferential ribs are provided, and the plurality of circumferential ribs are arranged in sequence from the inside to the outside. The radial ribs are respectively engaged with each of the circumferential ribs to reduce the processing cost of the air outlet grille. The radial ribs are provided with notch grooves, and the notch grooves penetrate through the radial ribs along the circumferential direction of the circumferential ribs. The actual obstruction area of the grille is the projection of the grille structure in the normal direction of the air flow. Therefore, its projected area in the air flow direction is larger than the geometric area. The notch groove reduces the local width of the radial rib, reduces the air flow resistance, and reduces the discrete aerodynamic noise when the air outlet grille discharges air.

Description

Technical Field

[0001] This application generally relates to household appliances, and more specifically, to an air outlet grille and an air outlet device. Background Art

[0002] Existing fan grilles include radial ribs and circumferential ribs. The radial ribs extend from the innermost circumferential rib to the outermost circumferential rib. The circumferential ribs and the radial ribs are assembled by spot welding, resulting in low efficiency and high cost. Driven by an axial flow fan blade, the air flow velocity is the greatest at the tip of the blade, and at the same time, there are large changes in the air flow direction. When the air flow passes through the air outlet grille, relatively large discrete aerodynamic noise is generated. Summary of the Invention

[0003] A series of simplified concepts are introduced in the Summary of the Invention section, which will be further elaborated in detail in the Detailed Description section. The Summary of the Invention section is not intended to attempt to define the key features and essential technical features of the claimed technical solution, nor is it intended to attempt to determine the protection scope of the claimed technical solution.

[0004] In order to solve the above technical problems, the main object of this application is to provide an air outlet grille and an air outlet device.

[0005] To achieve the above invention object, this application adopts the following technical solutions:

[0006] An air outlet grille includes circumferential ribs and radial ribs;

[0007] A plurality of the circumferential ribs are provided, and the plurality of circumferential ribs are arranged in sequence from inside to outside. The radial ribs are respectively in snap-fit with each of the circumferential ribs;

[0008] The radial rib is provided with a notch groove, and the notch groove penetrates the radial rib along the circumferential direction of the circumferential rib.

[0009] Further, in some embodiments of this solution, a plurality of the notch grooves are provided, and the plurality of notch grooves are spaced along the length direction of the radial rib.

[0010] Further, in some embodiments of this solution, the width of the radial rib in the axial direction is L, and the depth of the notch groove in the axial direction is T, where 1 / 3L < T < 2 / 3L.

[0011] Further, in some embodiments of this solution, the opposite side surfaces of the notch groove are respectively provided with an arc surface structure to form a flared structure at the notch of the notch groove.

[0012] Furthermore, in some embodiments of the present solution, the radial ribs are provided with a plurality of slots for cooperating with the circumferential ribs, and the notches of the slots are oriented in opposite directions to the notches of the notch grooves.

[0013] Furthermore, in some embodiments of the present solution, a plurality of the radial ribs are provided, and the plurality of the radial ribs are distributed radially.

[0014] Furthermore, in some embodiments of the present solution, the air outlet grille further includes a plurality of reinforcing ribs that are snap-fitted with the circumferential ribs, and the reinforcing ribs are staggered with the radial ribs.

[0015] Furthermore, in some embodiments of the present solution, the length of the reinforcing rib is smaller than that of the radial rib, the reinforcing rib is provided with a plurality of the notch grooves at intervals along the length direction, and the reinforcing rib is snap-fitted with at least two of the circumferential ribs.

[0016] Furthermore, in some embodiments of the present solution, the air outlet grille further includes an inner fixing frame and an outer ring frame, and the two ends of the radial ribs in the length direction are respectively connected to the inner fixing frame and the outer ring frame.

[0017] An air outlet device is provided with the above-mentioned air outlet grille.

[0018] It can be seen from the above technical solution that the advantages and positive effects of the air outlet grille and air outlet device of the present application are:

[0019] Reduce the processing cost of the air outlet grille, reduce the discrete aerodynamic noise when the air outlet grille is discharging air, and reduce the wind resistance of the air outlet grille.

[0020] The air outlet grille includes circumferential ribs and radial ribs. There are multiple circumferential ribs, and the multiple circumferential ribs are arranged in sequence from the inside to the outside. The radial ribs are respectively engaged with each of the circumferential ribs. Compared with the existing welding processing method, the processing cost of the air outlet grille is reduced. The radial ribs are provided with notches, and the notches penetrate the radial ribs along the circumferential direction of the circumferential ribs. The obstruction area of ​​the grille is actually the projection of the grille structure in the normal direction of the airflow. Therefore, its projection area in the airflow flow direction is larger than the geometric area. The notches reduce the local width of the radial ribs, reduce the air outlet wind resistance, and reduce the discrete aerodynamic noise of the air outlet grille when air is discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a top view structural schematic diagram of an air outlet grille shown according to an exemplary embodiment.

[0024] Figure 2 It is a three-dimensional structural schematic diagram of an air outlet grille shown according to an exemplary embodiment.

[0025] Figure 3 It is a partial connection schematic diagram of an air outlet grille shown according to an exemplary embodiment.

[0026] Figure 4 It is shown according to an exemplary embodiment of a kind of air outlet grille's Figure 3 Partial enlarged structural schematic diagram.

[0027] Wherein, the reference numerals are explained as follows:

[0028] 100 - Radial rib; 200 - Circumferential rib; 300 - Reinforcing rib; 400 - Outer ring frame; 500 - Inner fixing frame;

[0029] 110 - Notch groove; 120 - Card slot. Detailed implementation manners

[0030] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some, rather than all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0031] This solution provides an air outlet grille and an air outlet device. The air outlet grille includes circumferential ribs 200 and radial ribs 100. A plurality of the circumferential ribs 200 are provided, and the plurality of circumferential ribs 200 are arranged in sequence from inside to outside. The radial ribs 100 are respectively engaged with each of the circumferential ribs 200 in a snap-fit manner. Compared with the existing welding process, the processing cost of the air outlet grille is reduced. The radial rib 100 is provided with a notch groove 110. The notch groove 110 penetrates the radial rib 100 along the circumferential direction of the circumferential rib 200. When the discrete air flow passes through the air outlet grille, the air outlet grille obstructs the air flow. The actual obstruction area of the air outlet grille is the projection of the grille structure in the normal direction of the air flow, and its projected area in the air flow direction is larger than the geometric area. The notch groove 110 reduces the local width of the radial rib 100, reduces the air outlet resistance, and reduces the air outlet noise caused by the discrete air flow.

[0032] In the solution of this application, the circumferential ribs 200 are made of metal material, and the radial ribs 100 are made of plastic material. Compared with the existing air outlet grille made of plastic material, the circumferential ribs 200 made of metal material can have a smaller diameter, reduce the production cost, meet the structural strength of the air outlet grille, and further reduce the air outlet resistance. The radial ribs 100 are made of plastic material, and the circumferential ribs 200 and the radial ribs 100 are engaged with each other in a snap-fit manner. Compared with the connection method of spot welding between the circumferential ribs and the radial ribs in the traditional metal grille, the processing cost is reduced, and the assembly of the air outlet grille is facilitated.

[0033] Combined with Figure 1 and Figure 2 As shown, the air outlet grille includes a plurality of radial ribs 100, a plurality of circumferential ribs 200, an outer ring frame 400, and an inner fixing frame 500. The outer contour of the inner fixing frame 500 is circular. The inner fixing frame 500 is disposed inside the outer ring frame 400 and is concentric with the outer ring frame 400. A plurality of radial ribs 100 are radially arranged between the outer ring frame 400 and the inner fixing frame 500. One end of the radial rib 100 in the length direction is fixedly connected to the outer ring frame 400, and the other end of the radial rib 100 in the length direction is fixedly connected to the inner fixing frame 500.

[0034] Combined with Figure 2-3 As shown, the inner fixing frame 500 is in a disc shape, and a flanging is provided on the circumferential side of the inner fixing frame 500 to facilitate the fixed connection with the radial rib 100. A plurality of circumferential ribs 200 are arranged in sequence from inside to outside. Each circumferential rib 200 is engaged with at least two radial ribs 100 in a snap-fit manner. In this embodiment, each circumferential rib 200 is engaged with all the radial ribs 100 in a snap-fit manner.

[0035] In this solution, the extending direction of the circumferential rib 200 is defined as the circumferential direction, and the extending direction of the radial rib 100 is defined as the radial direction. The air outlet grille further includes a plurality of reinforcing ribs 300. The reinforcing ribs 300 are arranged to extend in the radial direction. The reinforcing ribs 300 are arranged in an interleaved manner with the radial ribs 100. One end of the reinforcing rib 300 in the length direction is connected to the outer ring frame 400. The length of the reinforcing rib 300 is less than that of the radial rib 100. Each reinforcing rib 300 is clamped and cooperated with at least two circumferential ribs 200.

[0036] Combined with Figure 3 as shown Figure 3 It includes a schematic structural diagram of the reinforcing rib 300, the radial rib 100, and the cooperation structure between the radial rib 100 and the reinforcing rib 300 respectively. The reinforcing ribs 300 and the radial ribs 100 are distributed in an interleaved manner. The circumferential ribs 200 covered in the length direction of the reinforcing rib 300 are respectively clamped and cooperated with the reinforcing rib 300. Under the understanding of those skilled in the art, the reinforcing rib 300 can also be installed in other forms according to the usage requirements. According to the number of the reinforcing ribs 300, when the number of the reinforcing ribs 300 is the same as that of the radial ribs 100, one reinforcing rib 300 is arranged between two adjacent radial ribs 100. When the number of the reinforcing ribs 300 is less than that of the radial ribs 100, it can be set according to the local structural strength requirements of the grille during use.

[0037] Both the reinforcing rib 300 and the radial rib 100 are provided with a slot 120 and a notch groove 110, and the slot 120 of the reinforcing rib 300 has the same structure as the slot 120 of the radial rib 100, and the notch groove 110 of the reinforcing rib is the same as the notch groove 110 of the radial rib 100.

[0038] Combined with Figure 3 and Figure 4 , except for the different lengths, the radial rib 100 and the reinforcing rib 300 have the same other structures. Therefore, in this embodiment, the notch groove 110 and the slot 120 are introduced only from the perspective of the radial rib 100.

[0039] The radial rib 100 is provided with a plurality of notch grooves 110 and a plurality of slots 120 for clamping and cooperating with the circumferential ribs 200. The plurality of notch grooves 110 are arranged at intervals along the length direction of the reinforcing rib 300. The notch groove 110 penetrates the radial rib 100 along the circumferential direction of the circumferential rib 200. The slot 120 and the notch groove 110 are respectively located on both sides of the radial rib 100 in the length direction, that is, the notch of the slot 120 and the notch of the notch groove 110 face in opposite directions, ensuring the structural strength of the radial rib 100 and at the same time ensuring the thickness of the two side walls of the slot 120.

[0040] The two opposite sides of the notch groove 110 are respectively arranged as arc surface structures, and arc chamfers can also be arranged on both sides of the notch of the notch groove 110, so as to form a flared structure at the notch of the notch groove 110, further reducing the wind resistance when the gas flows through and reducing the discrete aerodynamic noise at the same time.

[0041] As Figure 4 shown, the width of the radial reinforcing rib 300 is defined as L, the depth of the notch groove 110 in the width direction of the radial rib 100 is defined as T, the width of the notch of the card slot 120 is defined as K, and the center distance between two adjacent card slots 120 is defined as N. The difference between M and N is within ±1 mm, and 1 / 3L < T < 2 / 3L of the depth of the notch groove 110. The width of the notch of the card slot 120 is less than the diameter of the circumferential rib 200 to prevent the circumferential rib 200 from slipping out after being stuck in the card slot 120. In this embodiment, the diameter of the circumferential rib 200 can be between 1.5 mm and 2.5 mm.

[0042] The card slot 120 includes an inlet section and a clamping section. The inlet section is used for the circumferential rib 200 to move to the clamping section. The clamping section is in an arc-shaped structure, so that the circumferential rib 200 fits with the inner wall of the card slot 120 to ensure the stability of the fixation of the circumferential rib 200. The clamping section is located at the central part of the radial rib 100.

[0043] In this solution, the outer ring frame 400, the inner fixing frame 500, the radial rib 100 and the reinforcing rib 300 are respectively made of plastic materials, and the radial rib 100, the reinforcing rib 300, the outer ring frame 400 and the inner fixing frame 500 can be integrally processed and injection molded.

[0044] This embodiment also provides an air outlet device equipped with the above air outlet grille. When the air outlet device uses an axial flow fan, the air flow speed at the tip of the axial flow fan blade is the largest, and at the same time, there are large changes in the air flow direction. Multiple notch grooves 110 are arranged at intervals of the radial rib 100, which can effectively disperse the aerodynamic noise and reduce the noise peak value.

[0045] In summary, the present solution provides an air outlet grille and an air outlet grille. The air outlet grille includes a plurality of radial ribs 100 and a plurality of circumferential ribs 200. The circumferential ribs 200 are arranged in sequence from inside to outside. The plurality of radial ribs 100 are arranged radially. Each radial rib 100 is respectively engaged with each circumferential rib 200. The radial rib 100 is further provided with a plurality of slots 120 for cooperating with the circumferential rib 200. The radial rib 100 is provided with a plurality of notch grooves 110. The notch grooves 110 penetrate the radial rib 100 along the circumferential direction of the circumferential rib 200, and the plurality of notch grooves 110 are arranged at intervals in the length direction of the radial rib 100. The notch grooves 110 reduce the local width of the radial rib 100, reduce the air outlet resistance, and reduce the air outlet noise caused by discrete air flow. The circumferential rib 200 is made of metal material, and the radial rib 100 is made of plastic material. Compared with the existing plastic ribs, the diameter of the circumferential rib 200 in the present solution can be designed to be smaller, which reduces the air outlet resistance on the basis of ensuring the structural strength of the air outlet grille. The radial rib 100 is made of plastic material, so that the circumferential rib 200 is engaged with the radial rib 100. Compared with the spot welding of the circumferential rib and the radial rib in the traditional metal grille, the circumferential rib 200 is engaged with the radial rib 100, which reduces the processing cost and facilitates the assembly of the air outlet grille.

[0046] It should be noted that in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "including a..." does not exclude the presence of additional identical elements in the process, method, article or device including the element.

[0047] The above are only specific embodiments of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. An air outlet grille, characterized in that, It includes circumferential ribs (200) and radial ribs (100); A plurality of the circumferential ribs (200) are provided, and the plurality of circumferential ribs (200) are arranged in sequence from inside to outside. The radial ribs (100) are respectively in snap-fit with each of the circumferential ribs (200); The radial rib (100) is provided with a notch groove (110), and the notch groove (110) penetrates the radial rib (100) along the circumferential direction of the circumferential rib (200); both opposite sides of the notch groove (110) are respectively arranged as arc surface structures, and arc chamfers are arranged on both sides of the notch of the notch groove 110, so as to form a flared structure at the notch of the notch groove (110); to reduce the wind resistance when gas flows through and at the same time reduce the discrete aerodynamic noise; The radial rib (100) is provided with a plurality of clamping grooves (120) for cooperating with the circumferential rib (200), and the notch of the clamping groove (120) faces in the opposite direction to the notch of the notch groove (110); Each notch groove (110) is arranged between two adjacent clamping grooves (120); The clamping groove (120) includes an inlet section and a clamping section. The inlet section is for the circumferential rib (200) to move to the clamping section. The clamping section is in an arc shape structure, so that the circumferential rib (200) fits with the inner wall of the clamping groove (120), strengthening the stability of the fixation of the circumferential rib (200). The clamping section is located at the central part of the radial rib (100).

2. The air outlet grille according to claim 1, characterized in that, A plurality of the notch grooves (110) are provided, and the plurality of notch grooves (110) are arranged at intervals along the length direction of the radial rib (100).

3. The air outlet grille according to claim 1, characterized in that, The width of the radial rib (100) in the axial direction is L, and the depth of the notch groove (110) in the axial direction is T, and 1 / 3L < T < 2 / 3L.

4. The air outlet grille according to claim 1, characterized in that, Both opposite side surfaces of the notch groove (110) are respectively arranged as arc surface structures, so as to form a flared structure at the notch of the notch groove (110).

5. The air outlet grille according to claim 1, characterized in that, A plurality of the radial ribs (100) are provided, and the plurality of radial ribs (100) are radially distributed.

6. The air outlet grille according to claim 5, characterized in that, The air outlet grille further includes a plurality of reinforcing ribs (300) that are in snap-fit with the circumferential ribs (200), and the reinforcing ribs (300) and the radial ribs (100) are distributed alternately.

7. The air outlet grille according to claim 6, wherein The length of the reinforcing rib (300) is less than that of the radial rib (100). A plurality of the notch grooves (110) are arranged at intervals along the length direction of the reinforcing rib (300), and the reinforcing rib (300) is in snap-fit with at least two of the circumferential ribs (200).

8. The air outlet grille according to claim 1, characterized in that, The air outlet grille further includes an inner fixing frame (500) and an outer ring frame (400). Both ends of the radial rib (100) in the length direction are respectively connected to the inner fixing frame (500) and the outer ring frame (400).

9. An air outlet device, characterized in that, The air outlet grille according to any one of claims 1-8 is installed.

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