Air outlet mesh cover, mesh cover assembly and electrical appliance

Abstract

An air outlet mesh cover includes: a connecting component, a first rib and a plurality of air outlet grilles; the first rib is an annular structure arranged outside the connecting component, which is connected to the plurality of air outlet grilles; the plurality of air outlet grilles are respectively connected to the connecting component, and extend radially outward with the center of the connecting component as the center of the circle, and the height of the connecting portion between the air outlet grille and the first rib is greater than the height of other parts of the air outlet grille. A mesh cover assembly and an electrical appliance including the above-mentioned air outlet mesh cover are also provided. By increasing the height of the connection between the air outlet grille and the first rib, the height of the connection between the air outlet grille and the first rib is made greater than the height of other positions of the air outlet grille to form a longer air supply channel, thereby increasing the wind speed at the center of the air outlet mesh cover, increasing the air supply speed, increasing the air supply distance, reducing the divergence of the air flow, and improving the user experience when using it.

Description

Technical Field

[0001] The invention relates to the technical field of ventilation equipment, and in particular to an air outlet mesh cover, a mesh cover component and an electrical appliance. Background Art

[0002] The electric fan is one of the most widely used household appliances. It relies on the motor to drive the fan blades to rotate, drive the surrounding air flow, and blow the accelerated air from the rotating fan blades to the front of the electric fan, and then blow it to the human body through the flowing air to achieve the effect of cooling the human body.

[0003] The traditional electric fan mesh ring is made of metal wire mesh, which has a high overall strength. When the fan blades are running at high speed, fingers will not be inserted into them, which is safer. However, the overall shape of the metal mesh is large, and when the wire mesh ring is blowing, the wind feels stronger at close range, but weaker beyond a certain distance. The overall wind is more diffuse, and the air delivery distance is not far. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects of the existing wire mesh cover, such as slow air supply speed, short air supply distance, weak wind feeling at a long distance, and difficulty in meeting user needs, thereby providing an air outlet mesh cover, comprising: a connecting component, a first rib and a plurality of air outlet grilles;

[0005] The first rib is an annular structure disposed outside the connecting component and connected to the plurality of air outlet grilles;

[0006] The plurality of air outlet grilles are respectively connected to the connection component and extend radially outward with the center of the connection component as the center of a circle. The height of the connection portion between the air outlet grille and the first rib is greater than the height of other portions of the air outlet grille.

[0007] Preferably, the air outlet grille comprises a windward section and an air outlet section connected to each other;

[0008] The thickness of the windward section gradually decreases in a direction away from the air outlet section, and the thickness of the air outlet section gradually decreases in a direction away from the windward section, so that the thickness of the connection between the windward section and the air outlet section is the largest.

[0009] Preferably, the air outlet grille is a long strip structure.

[0010] Preferably, the air outlet grille further comprises:

[0011] The second rib is an annular structure provided between the connecting component and the first rib, and the second rib is connected to the air outlet grille.

[0012] Preferably, the diameter of the second rib is half the diameter of the air outlet grille.

[0013] Preferably, the air outlet grille further comprises:

[0014] The third rib is an annular structure arranged on a side of the first rib away from the connecting component, and the third rib is connected to one end of the plurality of air outlet grilles away from the connecting component.

[0015] Preferably, the diameter of the first rib is three quarters of the diameter of the air outlet mesh cover.

[0016] Preferably, the air outlet grille comprises a first air outlet grille and a second air outlet grille which are arranged at intervals;

[0017] One end of the first air outlet grille is connected to the connecting component, and the other end thereof extends outwardly along the radial direction of the connecting component;

[0018] One end of the second air outlet grille is connected to the second rib, and the other end thereof extends outwardly along the radial direction of the connecting component.

[0019] Correspondingly, the present invention also provides a mesh cover assembly, comprising any of the above-mentioned air outlet mesh covers, and further comprising: a rear mesh and a mesh cover connecting member;

[0020] The air outlet mesh cover and the rear mesh are connected via the mesh cover connecting piece.

[0021] The present invention also provides an electrical appliance, comprising any of the above-mentioned air outlet grilles.

[0022] The technical solution of the present invention has the following advantages:

[0023] An air outlet mesh cover provided by the present invention increases the height of the connection between the air outlet grille and the first surrounding rib so that the height of the connection between the air outlet grille and the first surrounding rib is greater than the height of other positions of the air outlet grille to form a longer air supply channel, thereby improving the wind speed of the air outlet mesh cover, improving the air supply speed, increasing the air supply distance, reducing the divergence of the air flow, and at the same time reducing the wind noise of the air outlet mesh cover, thereby improving the user experience when using it. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 This is a schematic diagram of the structure of the air outlet grille in an embodiment of the present invention;

[0026] Figure 2is a cross-sectional schematic diagram of an air outlet grille in an embodiment of the present invention;

[0027] Figure 3 A partial cross-sectional view of an air outlet grille in an embodiment of the present invention;

[0028] Figure 4 This is a comparison diagram of the wind speed at the center of the air outlet mesh cover and the wire mesh cover in the embodiment of the present invention;

[0029] Figure 5 This is the test diagram of airflow velocity distribution of wire mesh cover;

[0030] Figure 6 This is a test diagram of the air flow velocity distribution of the air outlet grille in an embodiment of the present invention. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0033] The first aspect of the embodiment of the present invention provides an air outlet grille, please refer to Figure 1 , Figure 2 and Figure 3 , comprising: a connecting component 1, a first rib 2 and a plurality of air outlet grilles 3; the first rib 2 is an annular structure arranged outside the connecting component 1, and is connected to the plurality of air outlet grilles 3; the plurality of air outlet grilles 3 are respectively connected to the connecting component 1, and extend radially outward with the center of the connecting component 1 as the center of the circle, and the height of the connecting portion between the air outlet grille 3 and the first rib 2 is greater than the height of other parts of the air outlet grille 3.

[0034] The above-mentioned air outlet mesh cover increases the height of the connection between the air outlet grille 3 and the first surrounding rib 2, so that the height of the connection between the air outlet grille 3 and the first surrounding rib 2 is greater than the height of other positions of the air outlet grille 3, so as to form a longer air supply channel, thereby improving the wind speed of the air outlet mesh cover, increasing the air supply speed, increasing the air supply distance, reducing the divergence of the airflow, and improving the user experience when using it.

[0035] Optionally, the connecting component 1 is a circular structure. The extension lines of the plurality of air outlet grilles 3 toward the connecting component 1 pass through the center of the connecting component 1. When the connecting component 1 is a circular structure, the plurality of air outlet grilles 3 have the same length. The plurality of air outlet grilles 3 have the same structure and length, so that they have higher strength and longer service life.

[0036] Preferably, the connecting component 1 is a circular plate-shaped structure. The connecting component 1 adopts a plate-shaped structure, which makes the connection method with the plurality of air outlet grilles 3 simpler, facilitates production, and reduces costs.

[0037] In one implementation of the present invention, please refer to Figure 2 The air outlet grille 3 includes a windward section 31 and an air outlet section 32 that are connected to each other; the thickness of the windward section 31 gradually decreases in the direction away from the air outlet section 32, and the thickness of the air outlet section 32 gradually decreases in the direction away from the windward section 31, so that the thickness at the connection between the windward section 31 and the air outlet section 32 is the largest.

[0038] Preferably, the thickness of the windward section 31 is 1mm-1.8mm, and the thickness of the connection between the windward section 31 and the air outlet section 32 is 2mm-3mm. Under the premise of ensuring the structural strength, reducing the thickness of the windward section 31 can reduce the wind resistance of the windward section 31 accordingly, thereby increasing the flow speed of the airflow when it is blown out, and increasing the flow distance of the airflow to meet the needs of users.

[0039] A first rib 2 is arranged outside the connecting component 1 of the air outlet mesh cover, and the first rib 2 is fixedly connected or integrally formed with a plurality of radially distributed air outlet grilles 3, thereby improving the overall strength of the air outlet mesh cover and extending the service life of the air outlet mesh cover.

[0040] Optional, see Figure 1 , the air outlet grille 3 is a long strip structure. In order to further reduce the wind resistance coefficient of the air outlet grille, reduce the obstruction to the airflow, and increase the flow speed of the airflow, the air outlet grille 3 adopts a long strip structure.

[0041] Increasing the height of the connection between the air outlet grille 3 and the first rib 2 forms a longer air outlet channel between the air outlet grille 3, which can increase the wind speed and extend the air supply distance. Optionally, the height of the connection between the air outlet grille 3 and the first rib 2 is 5mm-8mm; correspondingly, the height of the other parts of the air outlet grille 3 is 3mm-5mm.

[0042] In one implementation of the embodiment of the present invention, the diameter of the first rib 2 is three quarters of the diameter of the air outlet grille. The area where the air outlet grille 3 is more concentrated is the annular area with a radius of three quarters of the air outlet grille from the center. Increasing the height of the air outlet grille 3 in this area to form a longer air supply channel can further increase the air outlet speed and air outlet distance of the air flow, reduce the divergence of the air flow, and improve the user experience when using it.

[0043] Optionally, the air outlet grille further includes a second rib 4, which is an annular structure disposed between the connecting component 1 and the first rib 2, and the second rib 4 is connected to the air outlet grille 3. By adding the second rib 4, the overall structure of the air outlet grille can be further enhanced to further extend its service life.

[0044] Optionally, the diameter of the second rib 4 is half the diameter of the air outlet grille. By arranging the second rib 4 at the middle position between the outer edge of the connecting component 1 and the first rib 2, the connection strength of the plurality of air outlet grilles 3 can be improved, thereby increasing the overall strength of the air outlet grilles 3.

[0045] Optionally, the air outlet grille further includes: a third rib 5, which is an annular structure disposed on the side of the first rib 2 away from the connecting component 1, and the third rib 5 is connected to one end of the plurality of air outlet grilles 3 away from the connecting component 1. The third rib 5 is connected to one end of the plurality of air outlet grilles 3 away from the connecting component 1, further strengthening the connection between the air outlet grilles 3, so that the air outlet grilles 3 have higher connection strength and overall strength.

[0046] In one implementation of the embodiment of the present invention, the air outlet grille 3 includes a first air outlet grille 33 and a second air outlet grille 34 which are arranged at intervals; one end of the first air outlet grille 33 is connected to the connecting component 1, and the other end thereof extends radially outwardly along the connecting component 1; one end of the second air outlet grille 34 is connected to the second rib 4, and the other end thereof extends radially outwardly along the connecting component 1. The first air outlet grille 33 and the second air outlet grille 34 are arranged at intervals, thereby improving the overall strength of the air outlet grille.

[0047] Depend on Figure 4 It can be seen that under the same test environment, the central wind speed of the wire mesh cover of the present invention is only about 100m / s compared with the wire mesh cover in the prior art, while the central wind speed of the air outlet mesh cover of the present invention can reach about 300m / s. Compared with the two, the central wind speed of the air outlet mesh cover of the present invention is increased by more than 2 times, that is, the central wind speed of the air outlet mesh cover of the present invention is significantly increased, and the air flow divergence is significantly reduced.

[0048] Depend on Figure 5 and Figure 6 It can be seen that Figure 5 This is the test diagram of airflow velocity distribution of wire mesh cover. Figure 6The figure is a test diagram of the air flow velocity distribution of the air outlet mesh cover. After comparison, the air flow velocity of the two was tested in the same position near the center area. The air flow velocity of the air outlet mesh cover of the present invention is more than 2 times higher than that of the wire mesh cover; in the area near the edge, the air flow velocity of the air outlet mesh cover of the present invention is significantly weaker than that of the wire mesh cover. At the same time, the air outlet area of ​​the air outlet mesh cover of the present invention is also smaller than that of the wire mesh cover. From the above, it can be seen that the air outlet mesh cover of the present invention has a faster air outlet velocity and a smaller distribution area than the wire mesh cover.

[0049] The second aspect of the embodiment of the present invention provides a mesh cover assembly, including: the air outlet mesh cover provided in the first aspect of the embodiment of the present invention, and also including: a rear mesh and a mesh cover connecting piece, and the air outlet mesh cover and the rear mesh are connected by the mesh cover connecting piece.

[0050] Optionally, the mesh cover assembly also includes a motor cover, and the motor cover is detachably connected to the rear mesh.

[0051] A third aspect of the embodiments of the present invention provides an electrical appliance, comprising the air outlet grille provided by the first aspect of the embodiments of the present invention.

[0052] An air outlet grille provided in an embodiment of the present invention comprises: a connecting part, a first rib and a plurality of air outlet grilles; the first rib is an annular structure arranged outside the connecting part, which is connected to a plurality of air outlet grilles; the plurality of air outlet grilles are respectively connected to the connecting part, and extend radially outward with the center of the connecting part as the center of the circle, and the height of the connecting part between the air outlet grille and the first rib is greater than the height of other parts of the air outlet grille. The above-mentioned air outlet grille increases the height of the connection between the air outlet grille and the first rib, so that the height of the connection between the air outlet grille and the first rib is greater than the height of other positions of the air outlet grille to form a longer air supply channel, thereby increasing the wind speed of the air outlet grille, increasing the air supply speed, increasing the air supply distance, reducing the divergence of the air flow, and improving the user experience when using it.

[0053] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. An air outlet grille, characterized in that: include: A connecting member, a first rib and a plurality of air outlet grilles; The first rib is an annular structure disposed outside the connecting component and connected to the plurality of air outlet grilles; The plurality of air outlet grilles are respectively connected to the connecting component and extend radially outward with the center of the connecting component as the center of a circle, and the height of the connecting portion between the air outlet grille and the first rib is greater than the height of other portions of the air outlet grille; The air outlet grille comprises a windward section and an air outlet section connected to each other; The thickness of the windward section gradually decreases in a direction away from the air outlet section, and the thickness of the air outlet section gradually decreases in a direction away from the windward section, so that the thickness of the connection between the windward section and the air outlet section is the largest; The diameter of the first rib is three quarters of the diameter of the air outlet grille.

2. The air outlet grille according to claim 1, characterized in that: The air outlet grille is a long strip structure.

3. The air outlet grille according to claim 1, characterized in that: Also includes: The second rib is an annular structure provided between the connecting component and the first rib, and the second rib is connected to the air outlet grille.

4. The air outlet grille according to claim 3, characterized in that: The diameter of the second rib is half of the diameter of the air outlet grille.

5. The air outlet grille according to claim 3, characterized in that: Also includes: The third rib is an annular structure arranged on a side of the first rib away from the connecting component, and the third rib is connected to one end of the plurality of air outlet grilles away from the connecting component.

6. The air outlet grille according to claim 4 or 5, characterized in that: The air outlet grille comprises a first air outlet grille and a second air outlet grille which are arranged at intervals; One end of the first air outlet grille is connected to the connecting component, and the other end thereof extends outwardly along the radial direction of the connecting component; One end of the second air outlet grille is connected to the second rib, and the other end thereof extends outwardly along the radial direction of the connecting component.

7. A mesh cover assembly, characterized in that: The air outlet mesh cover comprises the air outlet mesh cover according to any one of claims 1 to 6, and further comprises: a rear mesh and a mesh cover connecting member; The air outlet mesh cover and the rear mesh are connected via the mesh cover connecting piece.

8. An electrical appliance, characterized in that: It comprises the air outlet mesh cover as described in any one of claims 1 to 6.

Images