Hub center stagnation type fan blade

Abstract

The utility model discloses a hub center stagnation type fan blade which comprises a hub, a rotating shaft is axially arranged on the first side of the hub and used for being arranged in a shaft hole of a stator in a penetrating mode, a plurality of fan blades are arranged on the periphery of the hub in a protruding mode, and a shaft hole is formed in the center of the second side of the hub in a concave mode. And a first side of the display disc protrudes to form a shaft part, and the shaft part is sleeved in the shaft hole in a penetrating manner, so that the display disc can rotate in the shaft hole, and the gravity center of the display disc deviates from the axis of the shaft hole, so that when the hub rotates, the display disc does not rotate along with the hub and is in a stagnation state.

Description

Technical Field

[0001] The utility model relates to a fan blade, in particular to a fan blade which has a stagnant area in the center of a hub which does not rotate with the fan blade when the fan blade rotates. Background Art

[0002] A common fan blade comprises a hub with a shaft protruding from one side of the hub. The shaft is inserted into a shaft hole of a stator, and a plurality of blades are protruding from the periphery of the hub. When the fan blade rotates, airflow is generated to achieve the purpose of heat dissipation.

[0003] Some manufacturers currently attach trademarks or patterns to the end faces of fan hubs to highlight product identification or decorative features. However, when the fan blades rotate, the trademarks or patterns on the hubs also rotate rapidly. Therefore, when the fan blades are running, the trademarks or patterns cannot be clearly seen, thus losing the purpose of identifying the source of the product or decorative features.

[0004] In view of this, the creator of the present utility model conducted research and innovation, and finally revealed the fan blade with stationary type in the center of the hub described in the present utility model. Utility Model Content

[0005] The utility model aims to provide a hub-centered stagnant fan blade, comprising: a hub, a rotating shaft axially arranged on a first side of the hub for passing through an axial hole of a stator, a plurality of fan blades protruding from the periphery of the hub, and an axial cavity concavely arranged in the center of a second side of the hub; and a display tray, comprising a tray body, an axial portion axially protruding from a first side of the tray body, pivotally mounted in the axial cavity, so that the display tray can rotate in the axial cavity, and the center of gravity of the tray body of the display tray is offset from the axis of the axial cavity, so that when the hub rotates, the display tray does not rotate with the hub and is in a stagnant state.

[0006] Since the display plate does not rotate with the rotation of the fan blades, the text or pattern on the plate body of the display plate can be clearly identified, thereby enhancing the product recognition and decorativeness.

[0007] The fan blade with a central stagnant hub disclosed in the present invention further includes a bearing, which is embedded in the shaft hole on the second side of the hub, and the shaft of the display plate is inserted into the central shaft hole of the bearing, so that the display plate can rotate more smoothly on the hub.

[0008] The hub center stagnant type fan blade disclosed in the present invention has at least one counterweight embedded in the disc body, or at least one counterweight fastened to the surface or edge of the disc body, so that the center of gravity of the display disc deviates from the axis of the shaft hole.

[0009] The hub-center stationary fan blade disclosed in this invention has a second side surface of the disk defining a display surface having text or patterns formed thereon. The text or patterns are formed on the display surface by printing, transfer printing, multi-color injection molding, drawing, or pasting.

[0010] The fan blade of the hub center stationary type disclosed by the present invention has a display layer adhered to the second side surface of the disk body, and the display layer has text or patterns on it.

[0011] The preferred embodiments of the present invention can be clearly understood from the following description and accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a three-dimensional exploded schematic diagram of the utility model applied to a heat dissipation fan;

[0013] Figure 2 This is a three-dimensional schematic diagram of the appearance of the utility model after assembly;

[0014] Figure 3 This is a front structural diagram of the present invention;

[0015] Figure 4 For this utility model Figure 3 A schematic diagram of a partial cross-sectional structure shown in the direction 4-4; and

[0016] Figure 5 It is a schematic diagram of the state of the utility model during operation.

[0017] Description of the marks in the figure:

[0018] (10) Hub (10a) First side (10b) Second side

[0019] (11) Rotating shaft (12) Fan blade (13) Shaft hole

[0020] (130) Axial bearing or bushing (141) Central shaft hole

[0021] (20) Stator (21) Shaft hole (30) Display plate

[0022] (31) Disk (31a) First side (31b) Second side

[0023] (310) Display surface (311) Counterweight (312) Text or pattern

[0024] (313) Display layer (32) axis (D) distance

[0025] (F) Bending moment, resistance (W) Center of gravity DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are 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 those skilled in the art without creative work are within the scope of protection of the present invention.

[0027] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features from different embodiments is intended to be within the scope of the present invention and to form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0028] See also Figure 1-5 As shown, the utility model relates to a hub-centered stagnant fan blade, comprising: a hub (10), a rotating shaft (11) axially arranged on a first side (10a) of the hub (10) for being inserted into an axial hole (21) of a stator (20), a plurality of fan blades (12) protruding from the periphery of the hub (10), and an axial cavity (13) concavely arranged in the center of the second side (10b) of the hub (10); and a display plate (30), comprising a plate body (31), a shaft portion (32) axially protruding from a first side (31a) of the plate body (31) and inserted into the axial cavity (13), so that the display plate (30) can rotate according to the axial cavity (13), and the center of gravity (W) of the plate body (31) of the display plate (30) deviates from the axis (130) of the axial cavity (13) by a distance (D), as shown in FIG. Figure 3 、 5 As shown, the hub (10) is Figure 5 The display plate (30) rotates in the R direction, and the center of gravity (W) of the display plate (30) generates a bending moment and resistance (F) on the axis (130) of the shaft hole (13), so that the display plate (30) does not rotate with the wheel hub (10) and is in a stagnant state.

[0029] like Figure 1 、 3 As shown in FIG4 , the hub center stagnant type fan blade disclosed in the present invention further comprises a bearing or bushing (14), which is embedded in the shaft cavity (13), and the shaft portion (32) of the display plate (30) is inserted into the central shaft hole (141) of the bearing or bushing (14), so that the display plate (30) can rotate more smoothly on the hub (10).

[0030] The bearing (14) can be a ball bearing or an oil-containing bearing (self-lubricating bearing), but the present invention is not limited thereto.

[0031] like Figure 3 、 4 As shown, the hub center stagnant type fan blade disclosed by the present invention, wherein the disk body (31) is embedded with at least one counterweight (311) or at least one counterweight (311) is fastened to the surface or disk edge of the disk body (31), so that the center of gravity (W) of the display disk (30) deviates from the axis (130) of the shaft hole (13).

[0032] like Figure 4 、 5 As shown, the hub center stagnant type fan blade disclosed by the present invention, wherein the second side (31b) of the disk body (31) is defined to form a display surface (310), and the display surface (310) is formed with text or pattern (312).

[0033] The text or pattern (312) can be formed on the display surface (310) of the plate (31) by printing, transfer, multi-color injection molding, or drawing, and the present invention is not limited to the forming method.

[0034] The fan blade of the hub center stagnation type disclosed in the present invention is as follows Figure 4 、 5 As shown, a display layer (313) is adhered to the second side (31b) of the plate (31), and text or pattern (312) is formed on the display layer (313).

[0035] The fan blade with a central stagnation type of hub disclosed in the present invention changes the structure of the traditional fan blade. When the fan blade rotates, a stagnation area (i.e., a display plate) is formed in the center of the fan blade that does not rotate with the hub. The text or pattern on the display plate (30) can be clearly identified to enhance the product recognition or decorativeness, thereby highlighting the excellence of the present invention.

[0036] The shapes and structures disclosed in the present invention may be modified and applied without violating the spirit and scope of the present invention, and the present invention is not limited to the above-mentioned embodiments.

[0037] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. The fan blades are stagnant in the center of the hub, characterized by: A hub is provided with a rotating shaft axially disposed on a first side of the hub for passing through an axial hole of a stator, a plurality of fan blades are protruding from the periphery of the hub, and an axis hole is concavely disposed in the center of the second side of the hub; and a display tray is provided, comprising a tray body, an axis portion axially protruding from a first side of the tray body and passing through the axis hole, so that the display tray can rotate in the axis hole, and the center of gravity of the tray body is offset from the axis center of the axis hole, so that when the hub rotates, the display tray does not rotate with the hub and remains in a stagnant state.

2. The hub center stagnant fan blade according to claim 1, characterized in that: The device further comprises a bearing, which is embedded in the shaft cavity, and the shaft of the display plate is passed through a central shaft hole of the bearing.

3. The hub center stagnant fan blade according to claim 1, characterized in that: The utility model further comprises a bushing which is embedded in the shaft hole so that the shaft of the display plate is pivotally arranged in a central shaft hole of the bushing.

4. The hub center stagnant fan blade according to claim 1, characterized in that: The disc body is embedded with at least one counterweight.

5. The hub center stagnant fan blade according to claim 1, characterized in that: At least one counterweight is fastened to the surface or edge of the disc body.

6. The hub center stagnant fan blade according to claim 1, characterized in that: The second side of the tray is defined to form a display surface, and the display surface is formed with text or patterns.

7. The hub center stagnant fan blade according to claim 6, characterized in that: The text or pattern is formed on the display surface of the tray by printing, transfer, multi-color injection molding or drawing.

8. The hub center stagnant fan blade according to claim 1, characterized in that: A display layer is adhered to the second side surface of the tray, and text or patterns are formed on the display layer.

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