Cooling fan with luminous fan blades

Abstract

The utility model relates to a cooling fan with luminous fan blades. The cooling fan comprises a fan support, a driver, an LED lamp panel and the fan blades. The LED lamp panel is located at the bottom of the fan support and annularly arranged on the peripheral side of the driver. The fan blades comprise a middle shaft piece connected with the driver and blades connected with the middle shaft piece. And the middle shaft piece is driven by the driver to rotate. The interiors of the middle shaft piece and the blades are of light guide structures and communicate with each other. Light shielding layers are arranged on the outer surfaces of the middle shaft piece and the blades, and light transmitting areas are arranged on the inner side face of the middle shaft piece and the upper skirt edges of the blades. Light emitted by the LED lamp panel enters the middle shaft piece from the inner side face of the middle shaft piece, then enters the blades through the middle shaft piece and is emitted out of the upper skirt edges of the blades. Light emitted by the LED lamp panel enters from the inner side face of the middle shaft piece of the fan blade and then is emitted from the upper skirt edge of the blade body of the fan blade, so that the upper skirt edge of the blade body is lightened, cyclone-shaped light spots capable of rotating along with the fan blade body are formed, the dynamic effect is good, and powerful product competitiveness is formed.

Description

Technical Field

[0001] The utility model relates to the technical field of radiator design, in particular to a heat dissipation fan with luminous fan blades. Background Art

[0002] In the design of radiators, cooling fans are often used (for example, combining a cooling fin group with a cooling fan). The blades of the cooling fan rotate to generate airflow, which plays a role of air cooling and improves the heat dissipation efficiency. On the premise of meeting the heat dissipation requirements, in order to improve the competitiveness of the product, some manufacturers add a lighting function to the cooling fan. For example, the common RGB fan, when the blades rotate, the light source emits light, producing a gorgeous light effect to meet the personalized needs of customers.

[0003] A cooling fan with a light-emitting function generally has an LED light board installed on the fan bracket. The traditional design is to install the LED light board at the bottom or inside of the fan bracket, and then the fan blades are made of translucent material so that the light emitted by the LED light board can penetrate the fan blades and project onto the front of the cooling fan. The defect of this traditional design is that the light spot formed is circular, the light spot is static, and lacks dynamics. The designs of various manufacturers are highly homogenized, and most of them have improved the light-emitting mode of the LED light board (such as the way of lighting, color change, etc.). In today's fiercely competitive market environment, it is difficult to form strong product competitiveness. Utility Model Content

[0004] Based on this, the utility model provides a cooling fan with luminous fan blades, which utilizes the internal light-guiding structure of the fan blades in conjunction with the shading layer on the outer surface of the fan blades, so that the light emitted by the LED light board is incident from the inner side of the central axis of the fan blades, and then emitted from the upper skirt edge of the fan blades, thereby lighting up the upper skirt edge of the blades, forming a whirlwind-shaped light spot that can rotate with the fan blades, with good dynamic effects, thus forming a strong product competitiveness.

[0005] A heat dissipation fan with luminous fan blades, comprising:

[0006] Fan bracket;

[0007] A driver mounted on the fan bracket; the driver is located at the center of the bottom of the fan bracket;

[0008] An LED light board mounted on the fan bracket; the LED light board is located at the bottom of the fan bracket and is arranged around the outer peripheral side of the driver; and

[0009] The fan blades are connected to a driver; the fan blades include: a central axis connected to the driver and blades connected to the central axis; the central axis rotates when driven by the driver; the central axis cover is arranged on the driver and the LED light board; there are multiple blades and they radiate outward with the central axis as the center; the interior of the central axis and the blades are both light-guiding structures and are interconnected; the outer surfaces of the central axis and the blades are both provided with a shading layer, and the inner side surface of the central axis and the upper skirt of the blades are both provided with a light-transmitting area; the light emitted from the LED light board enters the central axis from the inner side surface of the central axis, enters the blades through the central axis, and is emitted from the upper skirt of the blade.

[0010] When the above-mentioned heat dissipation fan with luminous blades is working, the driver drives the blades to rotate, thereby generating the airflow required for heat dissipation. When the blades rotate and the LED light board is lit, the light emitted by the LED light board enters the central axis from the light-transmitting area on the inner side of the central axis, and then is introduced into the blade through the connection between the central axis and the blade, and then emitted from the light-transmitting area of ​​the upper skirt of the blade, thereby lighting up the upper skirt of the blade, while other areas are shaded by the shading layer. As the blades rotate, a whirlwind-shaped light spot can be formed that can rotate with the blades. Through the above-mentioned design, the internal light-guiding structure of the blades is utilized, and the shading layer on the outer surface of the blades is cooperated, so that the light emitted by the LED light board is incident from the inner side of the central axis of the blades, and then emitted from the upper skirt of the blades of the blades, thereby lighting up the upper skirt of the blades, forming a whirlwind-shaped light spot that can rotate with the blades, with good dynamic effects, forming a strong product competitiveness.

[0011] In one embodiment, the light shielding layer is a plastic coating layer, a coating layer, or an electroplating layer having a light shielding effect. The film layer for light shielding is formed by plastic coating, coating, or electroplating, which meets the requirements of the light shielding layer, has a simple structure, and is low in cost.

[0012] In one embodiment, the top surface of the central axis is also provided with a light-transmitting area. When the LED light panel is turned on, the top surface of the central axis can also be turned on, making the pattern of the light spot more diverse.

[0013] In one embodiment, a rotating shaft is provided at the center of the central shaft, the rotating shaft is passed through the driver and is pivoted to the center of the bottom of the fan bracket. The installation method of passing the rotating shaft through and pivoting is simple in structure and strong in stability.

[0014] In one embodiment, the fan blade further comprises: an external connecting ring connected to the blade; the external connecting ring is arranged around the outer end of the blade. The external connecting ring can be connected in series to reinforce the outer end of the blade to improve the stability of the blade when the fan blade rotates. At the same time, the external connecting ring can limit the airflow passing through the fan blade to play a role of rectification.

[0015] In one embodiment, the outer ring is a light-proof structure. If the outer ring is a light-proof structure, it can have an effect of peripherally limiting the light spot on the fan blade.

[0016] In one embodiment, the interior of the external ring is a light-guiding structure and is interconnected with the blades; the outer surface of the external ring is also provided with a light-shielding layer, and the top surface of the external ring is also provided with a light-transmitting area. If the external ring is a light-guiding structure, the light-shielding layer and the light-transmitting area can be used to extend and expand the light emitted by the LED light panel, thereby achieving the effect of peripheral extension of the light spot on the fan blade.

[0017] In one embodiment, the fan blade is an integrally formed structure. The integrally formed fan blade has a stable structure and can achieve a good light transmission effect between the central axis and the blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional view of a heat dissipation fan with luminous blades according to the first embodiment of the utility model;

[0019] Figure 2 for Figure 1 A three-dimensional view of the heat dissipation fan with glowing blades from another perspective;

[0020] Figure 3 for Figure 1 A front view of a heat dissipation fan with glowing blades is shown;

[0021] Figure 4 for Figure 1 The cooling fan with glowing blades is shown with the blade structure disassembled;

[0022] Figure 5 for Figure 1 An exploded view of a cooling fan with glowing blades is shown;

[0023] Figure 6 for Figure 5 A three-dimensional view of the fan blade structure in a heat dissipation fan with luminous fan blades;

[0024] Figure 7 for Figure 6 A three-dimensional view of the fan blade structure from another perspective;

[0025] Figure 8 for Figure 1 The luminous effect diagram of the cooling fan with luminous blades shown;

[0026] Fig. 9 This is a lighting effect diagram of a heat dissipation fan with luminous blades according to the second embodiment of the utility model;

[0027] Fig.10This is a lighting effect diagram of a cooling fan with luminous blades according to the third embodiment of the present utility model.

[0028] The meanings of the symbols in the accompanying drawings are:

[0029] 100-Cooling fan with glowing blades;

[0030] 10- fan bracket, 11- storage slot;

[0031] 20-driver, 21-external rotor, 22-internal stator;

[0032] 30-LED light board;

[0033] 40-fan blades, 41-central shaft, 411-rotating shaft, 42-blades, 421-upper skirt, 43-external connecting ring. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0039] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0040] Embodiment 1

[0041] like Figures 1 to 8 As shown, it is a heat dissipation fan 100 with luminous blades according to an embodiment of the present invention.

[0042] like Figures 1 to 4As shown, the heat dissipation fan 100 with luminous fan blades includes: a fan bracket 10, a driver 20 installed on the fan bracket 10, an LED light board 30 (also called an LED light strip) installed on the fan bracket 10, and fan blades 40 connected to the driver 20. Among them, the driver 20 is located at the center of the bottom of the fan bracket 10, the LED light board 30 is located at the bottom of the fan bracket 10 and is arranged around the outer peripheral side of the driver 20, and the fan blades 40 cover the driver 20 and the LED light board 30. The fan bracket 10 serves as a base and plays a supporting role. The driver 20 is used to drive the fan blades 40 to rotate to form the airflow required for heat dissipation. The LED light board 30 is used as a light source, and the light emitted by the LED light board 30 is guided through the fan blades 40 to form a whirlwind-shaped and dynamic light spot.

[0043] Below, combined Figures 1 to 8 , the above-mentioned cooling fan 100 with luminous blades is further described.

[0044] like Figure 1 As shown, in this embodiment, the fan bracket 10 is a frame structure. Figure 5 As shown, the fan bracket 10 is provided with a receiving slot 11 for accommodating the driver 20 , the LED light board 30 , and the fan blades 40 .

[0045] like Figure 5 As shown, in this embodiment, the driver 20 is a motor structure, which includes: an outer rotor 21 connected to the fan blades 40 and an inner stator 22 connected to the fan bracket 10. When the inner stator 22 is energized, a changing magnetic field is generated, thereby driving the outer rotor 21 to drive the fan blades 40 to rotate.

[0046] like Figure 4 and Figure 5 As shown, in this embodiment, the LED light board 30 is in a circular shape and is fixed at the center of the bottom of the fan bracket 10 .

[0047] like Figure 6 and Figure 7 As shown, the fan blade 40 includes: a central axis 41 connected to the driver 20 and blades 42 connected to the central axis 41. The central axis 41 rotates under the drive of the driver 20. The central axis 41 is covered on the driver 20 and the LED light board 30. The number of blades 42 is multiple and radiates outward from the central axis 41.

[0048] The interior of the central axis 41 and the blades 42 are both light-guiding structures and are interconnected. The outer surfaces of the central axis 41 and the blades 42 are both provided with a light-shielding layer, and the inner side surface of the central axis 41 and the upper skirt 421 of the blades 42 are both provided with a light-transmitting area. The light emitted by the LED light board 30 enters the central axis 41 from the inner side surface of the central axis 41, and then enters the blades 42 through the central axis 41, and then is emitted from the upper skirt 421 of the blades 42.

[0049] It should be noted that if Figure 6 and Figure 7 As shown, in order to form airflow, the blade 42 of the fan blade 40 is usually arranged at an angle, that is, assuming that the axis direction of the fan blade 40 coincides with the vertical direction, observing the outer side of the central axis 41 of the fan blade 40, the fan blade 40 is in a posture extending upward from the lower inclination (or extending downward from the upper inclination). Therefore, the upper skirt 421 of the fan blade 40 in this article refers to the edge of the blade 42 close to the front of the fan blade 40.

[0050] Since it is necessary to make the interior of the central axis 41 and the blades 42 both light-guiding structures, and it is necessary to control the light-emitting area in the outer surface shading area of ​​the central axis 41 and the blades 42, therefore, in the present solution, the light-guiding member can be coated with rubber, painted, or electroplated (the premise of electroplating treatment is that the material of the central axis 41 and the blades 42 needs to meet the electroplating requirements), so as to form a rubber coating layer, a paint layer, or an electroplating layer with a light-shielding effect on the outer surface of the light-guiding member. That is, the light-shielding layer is a rubber coating layer, a paint layer, or an electroplating layer with a light-shielding effect. The film layer used for light-shielding is formed by coating with rubber, coating, or electroplating to meet the requirements of the light-shielding layer, and has a simple structure and low cost. For example, in the present embodiment, a plastic film that can block light is formed on the outer surface of the central axis 41 and the blades 42 by coating with rubber.

[0051] Combination Figure 6 and Figure 7 As shown, in this embodiment, the middle shaft 41 is in the shape of an inverted cover. Figure 4 As shown, when installing the fan blades 40, the central shaft 41 is covered on the driver 20 and the LED light board 30. Taking the structure of the driver 20 as an example, the outer rotor 21 needs to be fixedly connected to the inner side of the central shaft 41. Figure 7 As shown, a rotating shaft 411 is provided at the center of the middle shaft 41, the rotating shaft 411 is passed through the driver 20 (for example, in this embodiment, the rotating shaft 411 is passed through the through hole of the inner stator 22, and the two can rotate relative to each other) and is pivoted at the center of the bottom of the fan bracket 10. The installation method of passing the rotating shaft 411 and pivoting is simple in structure and strong in stability.

[0052] In this solution, in order to make the blade 42 more stable during the rotation of the fan blade 40, it is also possible to make improvements so that the posture of the outer end of the blade 42 is more stable. Figure 6 and Figure 7As shown, in this embodiment, the fan blade 40 further includes: an outer ring 43 connected to the blade 42. The outer ring 43 is arranged around the outer end of the blade 42. The outer ring 43 can be connected in series to reinforce the outer end of the blade 42 to improve the stability of the blade 42 when the fan blade 40 rotates. At the same time, the outer ring 43 can limit the airflow passing through the fan blade 40 to play a role in rectification.

[0053] Different from the central axis 41 and the blades 42, the external ring 43 may or may not be used to guide light. Therefore, different light guiding structures of the external ring 43 are provided according to different light effect requirements.

[0054] For example, in the present embodiment, the outer ring 43 is a light-proof structure. If the outer ring 43 is a light-proof structure, it can have the effect of peripheral restriction on the light spot on the fan blade 40. Here, in order to realize that the outer ring 43 is a light-proof structure, the outer ring 43 can be made of a light-proof material. Alternatively, the interior of the outer ring 43 is a light-guiding structure (for example, the fan blade 40 corresponding to the following is an integrally formed structure), and the light-proof effect is achieved by providing a light-shielding layer on the outer surface of the outer ring 43.

[0055] In addition, in this embodiment, the fan blade 40 is an integrally formed structure. The integrally formed fan blade 40 has a stable structure and can achieve a good light transmission effect between the central shaft 41 and the blade 42.

[0056] Brief description of working principle:

[0057] like Figure 1 and Figure 2 As shown, during operation, the driver 20 drives the fan blades 40 to rotate, thereby generating the airflow required for heat dissipation. When the fan blades 40 rotate and the LED light board 30 is turned on, the light emitted by the LED light board 30 enters the middle axis 41 from the light-transmitting area on the inner side of the middle axis 41, and is then introduced into the blade 42 through the connection between the middle axis 41 and the blade 42, and then emitted from the light-transmitting area of ​​the upper skirt 421 of the blade 42, thereby lighting up the upper skirt 421 of the blade 42, while other areas are shielded by the shading layer. As the fan blades 40 rotate, a whirlwind-shaped light spot can be formed that can rotate with the fan blades 40. This light effect can be seen in Figure 8 As shown, the white arc-shaped stripe-shaped light spot corresponds to the light emitted from the upper skirt 421 of the blade 42. Since the blade 42 is rotating, the two ends of the upper skirt 421 will form a line visual effect from points during the rotational motion, corresponding to Figure 8 The white inner halo and inner halo in the figure, and the hatched area indicates the dark area.

[0058] The above-mentioned cooling fan 100 with luminous fan blades utilizes the internal light-guiding structure of the fan blade 40, in conjunction with the shading layer on the outer surface of the fan blade 40, so that the light emitted from the LED light panel 30 is incident from the inner side of the central axis 41 of the fan blade 40, and then emitted from the upper skirt 421 of the blade 42 of the fan blade 40, thereby lighting up the upper skirt 421 of the blade 42, forming a whirlwind-shaped light spot that can rotate with the fan blade 40, with good dynamic effect, forming a strong product competitiveness.

[0059] Embodiment 2

[0060] like Fig. 9 As shown, it is a heat dissipation fan 100 with luminous blades according to another embodiment of the present invention.

[0061] The difference between this embodiment and the first embodiment is that in this embodiment, a light-transmitting area is also provided on the top surface of the central axis 41. Furthermore, the specific shape of the light-transmitting area on the top surface of the central axis 41 may also be different according to different lighting effect requirements. Fig. 9 The example in FIG. 4 shows a case where the light-transmitting area on the top surface of the middle shaft 41 is circular. In other embodiments, the light-transmitting area on the top surface of the middle shaft 41 may also be in the shape of a ring or other shapes.

[0062] like Fig. 9 As shown, when the LED light board 30 is lit, the top surface of the central axis 41 can also be lit, making the pattern of the light spot more diverse.

[0063] The other structures of this embodiment are the same as those of the first embodiment, and can also achieve the beneficial effects of the first embodiment.

[0064] Embodiment 3

[0065] like Fig.10 As shown, it is a heat dissipation fan 100 with luminous blades according to another embodiment of the present invention.

[0066] The difference between this embodiment and the first embodiment is that in this embodiment, the interior of the outer ring 43 is a light-guiding structure and is interconnected with the blades 42. The outer surface of the outer ring 43 is also provided with a light-shielding layer, and the top surface of the outer ring 43 is also provided with a light-transmitting area.

[0067] like Fig.10 As shown, if the external ring 43 is a light-guiding structure, the light emitted by the LED light board 30 can be extended and expanded outward by using the light shielding layer and the light-transmitting area, so as to extend the light spot on the fan blade 40 to the periphery. Figure 8 and Fig.10 It can be seen that after the light-transmitting area is provided on the top surface of the outer connecting ring 43 , the outer ring halo in this embodiment is significantly thicker than that in the first embodiment.

[0068] The other structures of this embodiment are the same as those of the first embodiment, and can also achieve the beneficial effects of the first embodiment.

[0069] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The above embodiments only express the preferred implementation of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A cooling fan with luminous blades, characterized in that: include: Fan bracket; A driver mounted on the fan bracket; The driver is located at the center of the bottom of the fan bracket; An LED light panel mounted on the fan bracket; The LED light board is located at the bottom of the fan bracket and is arranged around the outer periphery of the driver; as well as The fan blades are connected to the driver; the fan blades include: a central axis connected to the driver and blades connected to the central axis; the central axis rotates when driven by the driver; the central axis is covered on the driver and the LED light board; the blades are multiple and radiate outward with the central axis as the center; the interiors of the central axis and the blades are both light-guiding structures and are interconnected; the outer surfaces of the central axis and the blades are both provided with a shading layer, and the inner side surface of the central axis and the upper skirt of the blades are both provided with a light-transmitting area; the light emitted from the LED light board enters the central axis from the inner side surface of the central axis, enters the blades through the central axis, and is emitted from the upper skirt of the blade.

2. The heat dissipation fan with luminous blades according to claim 1, characterized in that: The light-shielding layer is a rubber layer, a coating layer, or an electroplating layer having a light-shielding effect.

3. The heat dissipation fan with luminous blades according to claim 1, characterized in that: The top surface of the central axis is also provided with a light-transmitting area.

4. The heat dissipation fan with luminous blades according to claim 1, characterized in that: A rotating shaft is arranged at the center of the middle shaft, and the rotating shaft penetrates the driver and is pivotally connected to the center of the bottom of the fan bracket.

5. The heat dissipation fan with luminous blades according to claim 1, characterized in that: The fan blade also includes: an outer connecting ring connected to the blade; the outer connecting ring is arranged around the outer end of the blade.

6. The heat dissipation fan with luminous blades according to claim 5, characterized in that: The outer connecting ring is a light-proof structure.

7. The heat dissipation fan with luminous blades according to claim 5, characterized in that: The interior of the external connecting ring is a light-guiding structure and is interconnected with the blades; the outer surface of the external connecting ring is also provided with the light-shielding layer, and the top surface of the external connecting ring is also provided with a light-transmitting area.

8. The heat dissipation fan with luminous blades according to any one of claims 1 to 7, characterized in that: The fan blade is an integrally formed structure.

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