Cooling fan

Abstract

The utility model relates to the technical field of cooling fans, in particular to a cooling fan which comprises a fan body, and the fan body comprises a fan blade structure, a light guide element and an LED circuit board. The fan blade structure comprises a central hub and blades; one end of each light guide element extends along the first surface of the corresponding blade to form a light emitting point, and / or one end of each light guide element extends along the first surface of the corresponding blade from the cavity of the central hub, penetrates through the corresponding blade and forms a light emitting point on the second surface of the corresponding blade; the first faces of the blades are arc-shaped curved faces, the light guide elements extend along the curvature of the arc-shaped curved faces, light receiving points are arranged at the ends, facing the center hub, of the light guide elements, and shading sleeves are arranged at the extending positions of the light guide elements along the first faces of the blades. The LED circuit board is connected with a plurality of LED lamp beads, and the LED lamp beads are arranged on the outer side of the cavity. The cooling fan can emit light and is good in visual experience.

Description

TECHNICAL FIELD

[0001] The utility model relates to a heat dissipation fan technical field, especially a heat dissipation fan. BACKGROUND

[0002] When the computer host operates, the internal electronic chip often generates a lot of heat energy, because the computer equipment is upgraded constantly, the operation speed of the electronic chip is very high, and the heat dissipated cannot be removed by air natural convection, therefore, the heat dissipation fan is needed to actively assist the host to dissipate heat, to avoid the computer crash caused by overheating in the host.

[0003] With the rapid development of computers and information technology, the design of computers, especially the design of heat dissipation fans, is changing day by day. People not only need heat dissipation fans with excellent heat dissipation function and stable structure, but also have higher and higher requirements for the external structure of the heat dissipation fan and the visual effect generated thereby. However, the traditional heat dissipation fan still only has the heat dissipation function, the noise reduction performance is poor, the function is too single, and the ideal dynamic visual effect is difficult to realize. SUMMARY

[0004] Therefore, the utility model discloses the purpose of providing a heat dissipation fan that can emit light and has good visual experience.

[0005] The utility model discloses the following technical scheme:

[0006] A heat dissipation fan, comprising a fan body, the fan body comprising a fan blade structure, a light guide element and an LED circuit board;The fan blade structure comprises a center hub and a blade;One end of the light guide element extends along the first surface of the blade to form a light emitting point, and / or one end of the light guide element extends along the first surface of the blade from the cavity of the center hub and passes through the blade to form a light emitting point on the second surface of the blade;The first surface of the blade is an arc curved surface, the light guide element extends along the curvature of the arc curved surface, one end of the light guide element towards the center hub is provided with a light receiving point, and the light guide element is provided with a light shielding sleeve at the extension position along the first surface of the blade;The LED circuit board is connected with a plurality of LED lamp beads, and the LED lamp beads are arranged on the outside of the cavity.

[0007] Further improvement of the above technical scheme is that the number of blades is multiple, and the multiple blades are uniformly distributed in the circumferential direction with the center hub as the center.

[0008] Further improvement of the above technical scheme is that one side of the blade is provided with a mounting groove, and the mounting groove is opened along the extension direction of the blade, which is used for stably mounting the light guide element and realizing light path conduction.

[0009] Further improvement of the above technical scheme is that the second surface of the blade is provided with a plurality of noise reduction ribs, and the plurality of noise reduction ribs are distributed at intervals along the extension direction of the blade surface.

[0010] Further improvement of the above technical scheme is that the plurality of LED lamp beads are arranged in a ring array, and the LED lamp beads are adjusted by an external control circuit board and connected with a light receiving point.

[0011] Further improvement of the above technical scheme is that the fan body further comprises a driving module for driving the fan blade structure to rotate.

[0012] Further improvement of the above technical scheme is that the output shaft of the driving module is connected with a cavity for power transmission of the fan blade structure and the driving module.

[0013] Further improvement of the above technical scheme is that the fan body further comprises a fixing support comprising a circular base plate, an assembly cylinder and a plurality of mounting arms, the central part of the circular base plate is connected to the assembly cylinder, the assembly cylinder is adapted to the driving module and is axially positioned by interference fit or key connection, and the plurality of mounting arms are respectively connected to the outer edges of the circular base plate.

[0014] Further improvement of the above technical scheme is that the number of the mounting arms is at least three, the three mounting arms are arranged in a circumferential array, the ends of the mounting arms are provided with mounting through holes for fastening installation by screws.

[0015] Further improvement of the above technical scheme is that one side of the circular base plate is provided with a clamping structure for cooperation with the external control circuit board to realize limiting installation.

[0016] The beneficial effects of the present application are as follows:

[0017] The present application integrates heat dissipation, noise reduction and dynamic light guide functions, and through cooperation of the fan blade structure, the noise reduction rib, the light guide element and the LED circuit board, the user's visual experience is improved on the basis of heat dissipation, the equipment heat dissipation and decoration requirements are met, and the product intelligent level and user interaction experience are improved by supporting personalized light effect control in combination with the LED lamp beads. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Fig. 1 is a structural schematic view of the heat dissipation fan of the present application;

[0019] Figure 2 Fig. 2 is an exploded view of the heat dissipation fan of the present application; Figure 1

[0020] Figure 3 Figure 1 ​​Another angle structural schematic view of the heat dissipation fan;

[0021] Figure 4 For Figure 1 Another angle structural schematic view of the heat dissipation fan;

[0022] Figure 5 The working flow chart of one embodiment of the heat dissipation fan.

[0023] The figure mark is:

[0024] 10, fan body; 11, voice control module; 12, wireless communication module; 13, drive module; 20, fan blade structure; 21, center hub; 22, blade; 23, mounting groove; 24, noise reduction rib; 25, cavity; 30, light guide element; 31, light emitting point; 32, light receiving point; 40, LED circuit board; 41, LED lamp bead; 50, fixing support; 51, circular base plate; 52, assembly cylinder; 53, mounting arm; 54, mounting through hole; 55, clamping structure. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] In the description of the present application, it should be pointed out that the orientation or positional relationship indicated by the terms "vertical direction", "upper", "lower", "horizontal" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application. In addition, "first", "second", "third", "fourth" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present application, it should be pointed out that unless otherwise specified and limited, the terms "set", "mount", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be connected through an intermediate medium, it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] As Figures 1 to 5 shown, an embodiment of the utility model relates to a heat dissipation fan, including fan body 10, the fan body 10 includes fan blade structure 20, light guide element 30, LED circuit board 40, the fan blade structure 20 includes center hub 21, blade 22, one end of light guide element 30 extends along the first surface of blade 22 and forms light emitting point 31, and / or one end of light guide element 30 is by the cavity 25 of center hub 21 along the first surface of blade 22 extends, and passes through blade 22 and forms light emitting point 31 at the second surface of blade 22, the first surface of blade 22 is arc curved surface, light guide element 30 extends along the curvature of arc curved surface, one end of light guide element 30 towards center hub 21 is provided with light receiving point 32, light guide element 30 is provided with light shielding sleeve (not shown in the drawing) at the extension place of the first surface of blade 22, LED circuit board 40 is connected with several LED lamp beads 41, and the LED lamp beads 41 are located at the outside of cavity 25.

[0029] Further, the light guide element 30 of different lengths extends from the cavity 25 of the center hub 21 along the first surface of the blade 22, can pass through the blade 22 to form the light emitting point 31 on the second surface and / or directly form the light emitting point 31 on the first surface, and the diversified light guide mode can create rich light emitting effects to meet different decoration and visual requirements; the light guide element 30 extends along the curvature of the arc curved surface of the first surface of the blade 22, so that the light guide element 30 is better fitted with the fan blade structure 20, on the one hand, the integrity and the aesthetics of the structure are ensured, and on the other hand, the light refraction loss caused by poor fitting is reduced, and the light guide efficiency is improved; the light shielding sleeve (not shown in the drawing) is arranged at the extension place of the light guide element 30 along the first surface of the blade 22, can effectively prevent the light from leaking from the side, so that the light is more concentratedly propagated along the light guide element 30, the brightness and the clarity of the light emitting point 31 are enhanced, and the overall visual effect is improved.

[0030] In some embodiments, the fan body 10 further includes a voice control module 11 and a wireless communication module 12, in working, a user issues a voice instruction (such as "light changes to red" "turn on light breathing mode"), the voice control module 11 collects and identifies the instruction, and sends the instruction to the LED circuit board 40 through the wireless communication module 12; after the control chip of the LED circuit board 40 analyzes the instruction, the LED lamp beads 41 are driven to work according to the set parameters, the light is conducted through the light guide element 30, and presents the corresponding visual effect when the fan blade rotates. For example, the user voice triggers "switch light mode", the LED lamp beads 41 can cyclically switch red, green, blue and other colors, form dynamic light and shadow through the light guide element 30, realize the function of voice interactive control light change, and improve the user experience and the intelligent level of the product.

[0031] Further, the number of the blades 22 is set to be multiple, and the multiple blades 22 are uniformly distributed in the circumferential direction with the central hub 21 as the center. Specifically, the central hub 21 and the blades 22 are distributed in the circumferential direction, which ensures the rotation balance.

[0032] Further, one side of the blade 22 is provided with a mounting groove 23, which is opened along the extension direction of the blade 22. The mounting groove 23 is used to stably mount the light guide element 30 and realize light path conduction. Specifically, the mounting groove 23 stably mounts the light guide element 30, avoids rotation displacement, and ensures the stability of light path conduction. In some embodiments, the light guide element 30 can be directly bonded on the blade 22 through adhesive.

[0033] Further, the second surface of the blade 22 is provided with multiple noise reduction ribs 24, which are distributed in the extension direction of the surface of the blade 22. Specifically, the blade 22 is provided with the noise reduction ribs 24 and is distributed in the extension direction of the surface of the blade 22. The noise reduction ribs 24 disturb the airflow to reduce vortex noise. In combination with the wing-shaped blade 22, the wind resistance and operating noise are reduced.

[0034] Further, the LED lamp beads 41 are arranged in a ring array, and the LED lamp beads 41 are adjusted by an external control circuit board (not shown in the figure), and the LED lamp beads 41 are connected with the light receiving point 32. Specifically, the ring array distribution of the LED lamp beads 41 improves the uniformity of light guide, meets the diversified scene demand, enhances the product individuality and sense of technology, and effectively adjusts the parameters such as the light color, brightness and flicker frequency of the LED lamp beads 41 through the external control circuit board (not shown in the figure), which improves the visual experience. The LED lamp beads 41 uniformly provide light source for the light guide element 30, ensure the uniformity of the light brightness of each part of the light guide element 30, avoid the case that the light brightness difference is large, and improve the overall light quality.

[0035] The fan body 10 further comprises a driving module 13 for driving the fan blade structure 20 to rotate. The output shaft of the driving module 13 is connected with the cavity 25, and the cavity 25 is used for power transmission between the fan blade structure 20 and the driving module 13. Specifically, the cavity 25 is connected with the output shaft of the driving module 13, which ensures the stability of power transmission and guarantees the rotation reliability of the fan blade structure 20. In some embodiments, the driving module 13 can be a brushless motor or other driving device.

[0036] Further, the fan body 10 further comprises a fixing support 50, the fixing support 50 comprises a circular base plate 51, an assembly cylinder 52, a plurality of mounting arms 53; the central part of the circular base plate 51 is connected to the assembly cylinder 52; the assembly cylinder 52 is matched with the driving module 13, and axial positioning is realized through interference fit or key connection; the plurality of mounting arms 53 are respectively connected to the outer edges of the circular base plate 51. Specifically, the circular base plate 51, the assembly cylinder 52 and the mounting arms 53 of the fixing support 50 are designed to realize precise assembly with the driving module 13, and the mounting arms 53 facilitate external fixation and improve the overall structural stability of the fan.

[0037] Further, the number of the mounting arms 53 is at least three, the three mounting arms 53 are arranged in a circumferential array, the ends of the mounting arms 53 are provided with mounting through holes 54, and the mounting through holes 54 are used for fastening installation through screws. Specifically, the at least three mounting arms 53 are arranged in a circumferential array, the stress points are dispersed, the mounting through holes 54 are matched with screws for fastening, the fan mounting firmness is improved, and vibration loosening is avoided.

[0038] Further, one side of the circular base plate 51 is provided with a clamping structure 55, the clamping structure 55 is used for cooperating with an external control circuit board (not shown in the figure) to realize limiting installation. Specifically, the clamping structure 55 cooperates with the external control circuit board (not shown in the figure) to realize quick limiting installation, simplifies the assembly process, saves space at the same time due to compact layout, and improves the product integration.

[0039] The working principle of the utility model is as follows:

[0040] The driving module 13 drives the fan blade structure 20 to rotate, and the noise reduction rib 24 reduces airflow noise; the LED lamp bead 41 emits light through the light guide element 30, and presents a dynamic visual effect with the blade 22 rotating; the fixing support 50 stably fixes the fan through the mounting arm 53, the clamping structure 55 assists the external control circuit board (not shown in the figure) to be installed, and the whole realizes efficient heat dissipation, noise reduction and beautiful light guide functions.

[0041] The utility model integrates heat dissipation, noise reduction and dynamic light guide functions, and through cooperation of the fan blade structure 20, the noise reduction rib 24, the light guide element 30 and the LED circuit board 40, the user's visual experience is improved on the basis of heat dissipation, equipment heat dissipation and decoration requirements are met, and in combination with the LED lamp bead 41, personalized light effect control is supported, and the product intelligent level and user interaction experience are improved.

[0042] The above merely expresses the preferred technical solutions of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, and the present application also intends to include these changes and modifications.

Claims

1. A heat dissipating fan characterized by, The fan body comprises a fan blade structure, a light guide element and an LED circuit board; the fan blade structure comprises a central hub and a blade; one end of the light guide element extends along a first surface of the blade to form a light emitting point, and / or one end of the light guide element extends along the first surface of the blade from a cavity of the central hub, passes through the blade and forms a light emitting point on a second surface of the blade; the first surface of the blade is an arc-shaped curved surface, the light guide element extends along the curvature of the arc-shaped curved surface, one end of the light guide element towards the central hub is provided with a light receiving point, and the light guide element is provided with a light shielding sleeve at the extending position along the first surface of the blade; the LED circuit board is connected with a plurality of LED lamp beads, and the LED lamp beads are arranged outside the cavity.

2. The heat dissipating fan according to claim 1, wherein, The number of blades is set to be multiple, and the multiple blades are uniformly distributed in a circumferential direction with the central hub as the center.

3. The heat dissipating fan according to claim 1, wherein, One side of the blade is provided with a mounting groove, and the mounting groove is opened along the extending direction of the blade, which is used for stably mounting the light guide element and realizing light path conduction.

4. The heat dissipating fan of claim 1, wherein, The second surface of the blade is provided with a plurality of noise reduction ribs, and the plurality of noise reduction ribs are distributed in the extending direction of the blade surface.

5. The heat dissipating fan of claim 1, wherein, The plurality of LED lamp beads are arranged in a ring array, and the LED lamp beads are adjusted by an external control circuit board and connected with the light receiving point.

6. The heat dissipating fan of claim 1, wherein, The fan body further comprises a driving module for driving the fan blade structure to rotate.

7. The heat dissipating fan according to claim 6, wherein The output shaft of the driving module is connected with the cavity, and the cavity is used for power transmission between the fan blade structure and the driving module.

8. The heat dissipating fan of claim 1, wherein, The fan body further comprises a fixing support, and the fixing support comprises a circular base plate, an assembly cylinder and a plurality of mounting arms; the central part of the circular base plate is connected with the assembly cylinder; the assembly cylinder is matched with the driving module, and the axial positioning is realized by interference fit or key connection; the plurality of mounting arms are respectively connected with the outer edges of the circular base plate.

9. The heat dissipating fan according to claim 8, wherein, The number of mounting arms is at least three, and the mounting arms are arranged in a circumferential array; the ends of the mounting arms are provided with mounting through holes for fastening installation by screws.

10. The heat dissipating fan of claim 8, wherein, One side of the circular base plate is provided with a clamping structure for cooperating with the external control circuit board to realize limiting installation.

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