TW202415886A - Heat-dissipation fan having non-rotatable illuminated logo - Google Patents

Abstract

This disclosure is directed to a heat-dissipation fan with a non-rotatable illuminated logo having a carrier, a stator-assembly, a circuit board, an impeller, a shaft and a logo. The stator-assembly fastened on a sheath of the carrier has a stator channel. A hub of the impeller is provided with a rotor and a shaft-connection structure inserted in the sheath. The shaft is inserted in the shaft-connection structure to fix the logo with the sheath. The circuit board on the carrier is provided with a peripheral illumination-element. The impeller is rotatable about the sheath, the logo is fixed on the carrier by the shaft and non-rotatable with the impeller. The peripheral illumination-element can illuminate the logo through the stator channel and the light transmissible hub. Accordingly, the logo is non-rotatable with the impeller, the logo and/or patterns and texts thereof on the operated heat-dissipation fan can be clearly readable and illuminated.

Description

Cooling fan with non-transformation luminous sign

This application relates to a cooling fan, and more particularly to a cooling fan having a non-transforming luminous sign.

There are many products of heat sink fans equipped with logos on the market. However, heat sink fans equipped with logos have the following deficiencies to be overcome.

It is known that the logo on the cooling fan is not set at the visual focal point of the cooling fan, which makes it difficult for users or anyone else to see the logo. The most important thing is that the visual focal point of the cooling fan is the hub. When the cooling fan is running, the hub is also in a rotating state, which causes the logo set on the hub to rotate with the hub. Even if the user or anyone else sees the logo, it is difficult to see it clearly because the logo is in a state of rotating with the hub.

Furthermore, the known cooling fan still lacks a means to illuminate the sign. Although it can be done by adding a light-emitting unit to the circuit board, there is currently no means to allow the light emitted by the light-emitting unit to be directed to the sign, because the light emitted by the light-emitting unit will be blocked by the impeller, the stator assembly, or the impeller and the stator assembly, so the known cooling fan still cannot illuminate the sign. All of these have been criticized for a long time.

Therefore, how to design an application that can improve the above-mentioned knowledge deficiencies is a major issue that the creator of this application is eager to solve.

The purpose of this application is to provide a cooling fan with a non-rotating luminous sign, which can prevent the sign arranged at the visual focus of the cooling fan from rotating with the impeller when the cooling fan is running, and can also illuminate the sign.

In order to achieve the above-mentioned object, the present application provides a heat dissipation fan with a non-rotating luminous sign, comprising: a carrier having a sleeve, a first fixing portion being disposed in the sleeve; a stator assembly being sleeved and fixed to the sleeve and having at least one stator channel; an impeller having a light-transmissive hub, the hub having a wheel surface and being provided with a rotor and an axle structure, the axle structure being rotatably inserted in the sleeve; a sign being separately disposed corresponding to the wheel surface; and a spindle. The impeller is inserted into the axle structure, and the axle bridge is fixed to the first fixing portion and the mark; and at least one circuit board is arranged on the carrier and is equipped with at least one peripheral light-emitting element, and the at least one peripheral light-emitting element corresponds to the at least one stator channel; wherein the impeller can rotate relative to the sleeve, and the mark is fixed to the carrier through the axle without rotating with the impeller, and the light irradiated by the at least one peripheral light-emitting element passes through the at least one stator channel and through the wheel hub to the mark.

Compared with the prior art, the present application has the following effects: when the cooling fan is running, the sign arranged at the visual focal point of the cooling fan can still not rotate along with the impeller, so that anyone can still clearly see the sign and/or the graphics on the sign even when the cooling fan is running, and can also illuminate the sign using the peripheral light-emitting element, and also has the effect of illuminating the sign.

The detailed description and technical contents of this application are described below with the help of drawings. However, the attached drawings are only provided for reference and description and are not used to limit this application.

As shown in FIG. 1 , the present application provides a cooling fan with a non-rotating luminous sign (hereinafter referred to as cooling fan), which mainly allows the sign 8 to glow (or allows the sign 8 to be illuminated) and allows the sign 8 not to rotate with the impeller 4, so that the sign 8 can still be clearly seen during the operation of the cooling fan.

As shown in Figures 1 to 3, the heat dissipation fan of the present application includes a carrier 1, a stator assembly 2, a circuit board 3, an impeller 4 (equipped with a rotor 5), a central axis 6, a mark 8 and an elastic element S. In one embodiment, it also includes a light guide plate 7 or a light guide structure 9, or also includes a light guide plate 7 and a light guide structure 9 at the same time.

The carrier 1 is provided with a circuit board 3 and has a bearing surface 11 and a back surface 12 facing each other. A sleeve 13 is extended from the bearing surface 11 of the carrier 1, so that the sleeve 13 stands upright on the bearing surface 11, and the stator assembly 2 is sleeved and fixed on the sleeve 13. As shown in FIG3 , a first fixing portion 131 is also provided in the sleeve 13.

The first fixing portion 131 can be any structure for fixing the central shaft 6. In this embodiment, the following description is used as an example for explanation: the sleeve 13 has two openings opposite to each other (component symbols are not marked), and these two openings include: one of the openings adjacent to the bearing surface 11 and the other opening away from the bearing surface 11. The one of the openings is formed in a semi-closed manner as shown in Figure 3 to form the aforementioned first fixing portion 131 belonging to the socket structure.

The stator assembly 2 is provided with at least one stator channel 21. The number of stator channels 21 may be one or more. In this embodiment, a plurality of stator channels is used as an example for explanation. As shown in FIG. 2 and FIG. 3 , the stator assembly 2 has two end faces 2a and a peripheral surface 2b. The two end faces 2a are opposite to each other, and the peripheral surface 2b surrounds and connects to the periphery of the two end faces 2a. Each stator channel 21 passes through the two end faces 2a. In addition, each stator channel 21 may also form a breach 211 on the peripheral surface 2b.

The circuit board 3 is electrically configured with at least one peripheral light-emitting element 32. The number of peripheral light-emitting elements 32 can be one or more. In this embodiment, a plurality of peripheral light-emitting elements are used as an example for explanation. Each peripheral light-emitting element 32 corresponds to each stator channel 21, so that the light irradiated by each peripheral light-emitting element 32 can enter each stator channel 21 from one of the two end surfaces 2a, and then be emitted from the other of the two end surfaces 2a. It should be noted that each peripheral light-emitting element 32 is located in a peripheral portion (not marked with a component symbol) of the circuit board 3, and the peripheral portion surrounds a central portion (not marked with a component symbol) of the circuit board 3.

The impeller 4 has a hub 41 and a plurality of blades 42, each blade 42 being connected to the periphery of the hub 41. As shown in FIG. 3 , the hub 41 has a wheel surface 411 and an inner opposite surface 412 facing each other, the wheel surface 411 is exposed outward, and the hub 41 is also provided with a rotor 5 and an axle structure 43 as shown in FIG. 1 and FIG. 3 , and the axle structure 43 is rotatably inserted into the sleeve 13. The hub 41 includes a panel and a ring wall connected to the periphery of the panel (both are not marked with component symbols), the panel has the aforementioned wheel surface 411 and the inner opposite surface 412; the hub 41 can be entirely light-transmissive, or only the panel can be light-transmissive and the ring wall is not light-transmissive. It should also be noted that the fan blades 42 may be light-transmissive or opaque, and this application does not limit this.

The above-mentioned shaft connection structure 43 is used to shaft the aforementioned central shaft 6, which includes a hollow sleeve 431 and at least two bearings 432. The hollow sleeve 431 is a hollow column and is connected to the inner opposite surface 412 of the wheel hub 41 as shown in FIG. 3, so that the hollow sleeve 431 penetrates the aforementioned wheel surface 411 and is located in the wheel hub 41. The wheel surface 411 is penetrated by the hollow sleeve 431 to form an opening (not marked with component symbols) as shown in FIG. 3, and each bearing 432 is arranged in the hollow sleeve 431.

The sign 8 is disposed corresponding to the wheel surface 411, and the sign 8 is separated from the wheel surface 411 (the sign 8 is of course not connected to the impeller 4), so that the sign 8 does not rotate with the impeller 4, which is a rotating member. The sign 8 may also have at least one graphic (not shown).

The sign 8 is a translucent, semi-translucent or opaque object, and the graphics can also be translucent, semi-translucent or opaque. For example, the sign 8 itself can be an opaque sheet, and the graphics can be a translucent design.

The spindle 6 is a rod that allows the light irradiated by the central light emitting element 31 to pass through and is inserted into the pivot structure 43, that is, pivoted to each bearing 432, and the spindle 6 is bridge-fixed to the aforementioned first fixing portion 131 and the mark 8 (the spindle 6 in FIG. 3 is indirectly fixed to the mark 8 via the light guide plate 7, which will be described later). It should be noted that the mark 8 is suspended relative to the wheel surface 411 at this time.

The elastic element S is correspondingly sleeved on the spindle 6 , so that the elastic element S is elastically supported between the carrier 1 and the bearing 432 close to the first fixing portion 131 .

Thus, as shown in FIG3 , when the heat dissipation fan of the present application is started, the impeller 4 rotates relative to the sleeve 13. At this time, since the spindle 6 is fixed to the first fixing portion 131, it remains stationary together with the carrier 1 belonging to the stationary member, and the sign 8 fixed to the spindle 6 also remains stationary, that is, the sign 8 does not rotate with the impeller 4. The light irradiated by each peripheral light emitting element 32 will pass through each stator channel 21 and through the hub 41 and be emitted to the sign 8 (as shown in FIG3 , it is emitted to a surrounding area of the sign 8 (no element symbol is indicated)), so as to directly illuminate the sign 8. In this way, the present application can place the sign 8 at the visual focal point of the cooling fan: the wheel surface 411 of the hub 41, without rotating along with the impeller 4, so that anyone can still clearly see the sign 8 and/or the graphics on the sign 8 even when the cooling fan is running.

In one embodiment, as shown in FIG. 2 and FIG. 3 , the heat dissipation fan of the present application may further include a light guide ring 91, which is located between the inner opposite surface 412 and the stator assembly 2. In other words, the light guide ring 91 is located between the aforementioned panel of the hub 41 and each light guide channel 21, so that the light guide ring 91 blocks each stator channel 21, and the sign 8 is face-to-face with the panel of the hub 41 at intervals. In this way, the light irradiated by each peripheral light-emitting element 32 will first pass through the light guide of the light guide ring 91 before being emitted to the sign 8, thereby enhancing the effect of the sign 8 being illuminated.

Furthermore, the light guide ring 91 may further protrude at least one light guide column 92 to form a light guide structure 9. The number of light guide columns 92 may be one or more. In this embodiment, a plurality of light guide columns are used as an example for explanation. Each light guide column 92 is correspondingly inserted into each stator channel 21. Thus, the light irradiated by each peripheral light emitting element 32 will first pass through the light guide columns 92 and the light guide ring 91 before irradiating to the sign 8, thereby further improving the effect of the sign 8 being illuminated.

In another embodiment, as still shown in FIGS. 1 to 3 , the circuit board 3 may be further provided with at least one central light emitting element 31, which is located at the central portion of the circuit board 3, and the peripheral light emitting elements 32 surround the at least one central light emitting element 31. The number of central light emitting elements 31 may be one or more, and one is used as an example in this embodiment. The light emitted by the central light emitting element 31 can also illuminate the sign 8, as described below.

The aforementioned circuit board 3 can be arranged on the supporting surface 11 of the carrier 1 (not shown in the figure), and can also be arranged on the back side 12 of the carrier 1. In this embodiment, the following description of this paragraph is used as an example for explanation: in order to allow the light irradiated by the centered light-emitting element 31 to be emitted to the mark 8 through the spindle 6, the circuit board 3 must be arranged on the back side 12 of the carrier 1 as shown in Figure 3, and the centered light-emitting element 31 must correspond to one end of the spindle 6, and this end of the spindle 6 must be plugged and fixed to the first fixing portion 131, and the mark 8 must be fixed to the other end of the spindle 6.

It should be noted that a receiving space 121 is formed on the back side 12 of the carrier 1, and a plurality of through holes 14 are formed on the carrier 1. The receiving space 121 receives the central light emitting element 31 and allows the central light emitting element 31 to be closer to one end of the spindle 6. Each through hole 14 corresponds to each peripheral light emitting element 32, so that the light emitted by each peripheral light emitting element 32 can pass through each through hole 14, first pass through the light guide structure 9, and then be emitted to the sign 8.

The aforementioned spindle 6 can be any structure that allows the light irradiated by the centered light-emitting element 31 to pass through. Such structures can be, for example, a hollow shaft (as shown in FIG. 3 ) or a non-hollow shaft (not shown in the figure). The present application is not limited to this. In this embodiment, a hollow shaft is taken as an example for explanation as follows: As shown in FIG. 3 , the spindle 6 is provided with a hollow channel 60, and the centered light-emitting element 31 and the hollow channel 60 correspond to each other, so that the light irradiated by the centered light-emitting element 31 can be emitted from one end of the spindle 6 into the hollow channel 60, and then pass through the hollow channel 60 and be emitted from the other end of the spindle 6.

Thus, as shown in FIG. 3 , the light emitted by the central light-emitting element 31 will enter from one end of the spindle 6, and then pass through the hollow channel 60 and exit from the other end of the spindle 6 and toward the sign 8 (as shown in FIG. 3 , toward a middle area of the sign 8 (no element symbol is indicated, and the aforementioned surrounding area surrounds the middle area)), so as to directly illuminate the sign 8, thereby allowing anyone to more clearly see the sign 8 or/and the graphics on the sign 8 when the cooling fan is running. It should be noted that at this time, the surrounding area of the sign 8 is also illuminated by the peripheral light-emitting elements 32, that is, the middle area and the surrounding area of the sign 8 are all illuminated, so that the illumination effect of the sign 8 can be comprehensively improved.

In another embodiment, as still shown in FIG. 1 to FIG. 3 , the heat dissipation fan of the present application may further include a light guide plate 7, the light guide plate 7 having a second fixing portion 722, the spindle 6 being bridge-fixed to the aforementioned first fixing portion 131 and the second fixing portion 722, and the mark 8 being coaxially arranged or formed on the light guide plate 7 corresponding to the other end of the spindle 6 (or the hollow channel 60 corresponding to the spindle 6), so that the light guide plate 7 together with the mark 8 are stationary together with the carrier 1, that is, the light guide plate 7 and the mark 8 will not rotate with the impeller 4. The light irradiated by the central light emitting element 31 is projected toward the light guide plate 7 and the mark 8 through the hollow channel 60. It should be noted that at this time, the light guide plate 7 together with the mark 8 are suspended relative to the wheel surface 411.

Thereby, when the light irradiated by the central light-emitting element 31 is emitted from the other end of the spindle 6 and directed toward the light guide plate 7 and the logo 8, the light guide plate 7 will emit light behind the logo 8, thereby making the logo 8 and/or the graphics on the logo 8 emit light indirectly.

In addition, the present application may further provide a light scattering structure 72 on the light guide plate 7, for example, the light scattering structure 72 may correspond to the aforementioned middle area of the logo 8. The light scattering structure 72 corresponds to the other end of the spindle 6, in other words, the light scattering structure 72 is located between the light guide plate 7 and the other end of the spindle 6. In this way, when light is emitted from the other end of the spindle 6, it will first pass through the light scattering structure 72, and then be emitted to the light guide plate 7 and the logo 8. Moreover, the aforementioned second fixing portion 722 is disposed on the light scattering structure 72, and the second fixing portion 722 may be any structure that can be used to fix the spindle 6, and in this embodiment, it is a plug hole as shown in FIG. 3. In this way, the present application can make the light guide plate 7 have a uniform brightness effect by means of the light scattering structure 72. The shape of the light diffusion structure 72 can be, for example, a roughly cone-shaped structure as shown in FIG. 1 and protrudes from a middle position of the light guide plate 7 .

It should be noted that the logo 8 can be set on the light guide plate 7 by, for example, bonding as shown in the figure, or the logo 8 can be formed on the light guide plate 7 (not shown in the figure), and this application is not limited to this.

In other embodiments not shown in the figure, when the spindle 6 is a hollow spindle, another light-guiding structure such as an optical fiber can be further added in the hollow channel 60 to improve the brightness; when the spindle 6 is a non-hollow spindle, the spindle 6 can be a solid spindle made of a light-guiding material, so that when the central light-emitting element 31 emits light, the light will enter from one end of the spindle 6, and then be emitted from the other end of the spindle 6 through the light-guiding function of the spindle 6. The circuit board 3 can also be provided in two parts, one of which is provided on the back surface 12 as described above and is electrically configured with the central light-emitting element 31, and the other is provided on the supporting surface 11 and is electrically configured with the peripheral light-emitting elements 32, so the carrier 1 does not need to be provided with the through hole 14 at this time.

In summary, this application has a heat dissipation fan without a transformable luminous logo, which can achieve the expected purpose of use and solve the lack of knowledge. It fully meets the requirements for invention patent application. Therefore, an application is filed in accordance with the Patent Law. Please check and approve the patent of this case in detail to protect the rights of the creator of this application.

The above is only the preferred feasible embodiment of the present application, and does not limit the patent scope of the present application. All equivalent structural changes made by using the contents of the description and drawings of the present application are also included in the scope of the rights of the present application and are hereby stated.

1: carrier 11: bearing surface 12: back 121: storage space 13: sleeve 131: first fixing part 14: perforation 2: stator assembly 2a: end surface 2b: peripheral surface 21: stator channel 211: breach 3: circuit board 31: central light-emitting element 32: peripheral light-emitting element 4: impeller 41: hub 411: wheel surface 412: inner opposite surface 42: fan blade 43: shaft connection structure 431: hollow shaft sleeve 432: bearing 5: rotor 6: spindle 60: hollow channel 7: light guide plate 72: light scattering structure 722: second fixing part 8: logo 9: Light guide structure 91: Light guide ring 92: Light guide column S: Elastic element

Figure 1 is a schematic diagram of the three-dimensional combination of this application.

FIG2 is a three-dimensional exploded schematic diagram of this application.

FIG3 is a partial cross-sectional schematic diagram of this application based on FIG1.

1: Carrier

11: Loading surface

13: Sleeve

14: Perforation

2: Stator assembly

2a: End face

2b: Circumference

21: Stator channel

211: Breach

3: Circuit board

31: Centered light emitting element

32: Peripheral light-emitting element

4: Impeller

41: wheel hub

42: Fan blades

43: Axial connection structure

431:Hollow bushing

432: Bearings

5: Rotor

6: Axis

7: Light guide plate

72: Light scattering structure

722: Second fixed part

8: Logo

9: Light-guiding structure

91: Light guide ring

92: Light guide column

S: Elastic element

Claims (12)

A heat dissipation fan with a non-rotating luminous sign comprises: a carrier having a sleeve, wherein a first fixing portion is disposed in the sleeve; a stator assembly, which is sleeved and fixed to the sleeve and provided with at least one stator channel; an impeller, which has a light-transmissive hub, wherein the hub has a wheel surface and is provided with a rotor and an axle structure, wherein the axle structure is rotatably inserted into the sleeve; a sign, which is separately arranged corresponding to the wheel surface; a spindle, which is inserted into the axle structure, and the spindle is bridge-fixed to the first fixing portion and the sign; and at least one circuit board, which is arranged on the carrier and is provided with at least one peripheral luminous element, wherein the at least one peripheral luminous element corresponds to the at least one stator channel; The impeller can rotate relative to the sleeve, the sign is fixed to the carrier through the spindle and does not rotate with the impeller, and the light irradiated by the at least one peripheral light-emitting element passes through the at least one stator channel and the wheel hub to the sign. The heat dissipation fan with a non-rotating luminous sign as described in claim 1 also includes a light-guiding ring. The hub also has an inner opposite surface, which is opposite to the wheel surface. The light-guiding ring is located between the inner opposite surface and the stator assembly and corresponds to the at least one stator channel shielding. The light irradiated by the at least one peripheral light-emitting element further passes through the light-guiding ring before being emitted to the sign. The heat dissipation fan with a non-transforming luminous sign as described in claim 2 further includes at least one light guide column, which protrudes from the light guide ring and is correspondingly inserted into the at least one stator channel. The light irradiated by the at least one peripheral light-emitting element further passes through the at least one light guide column and the light guide ring before being emitted to the sign. As described in claim 3, the heat dissipation fan with a non-transforming luminous mark comprises a plurality of peripheral light-emitting elements, stator channels and light-guiding columns, each of which corresponds to each stator channel, and each of which is inserted into each of the stator channels. As described in claim 1, a heat dissipation fan with a non-rotating luminous sign, wherein the circuit board is set, the carrier has a supporting surface and a back surface opposite to each other, the sleeve is upright on the supporting surface, the circuit board is set on the back surface, the carrier is provided with at least one through hole corresponding to the at least one peripheral light-emitting element, and the light irradiated by the at least one peripheral light-emitting element passes through the at least one through hole and the at least one stator channel and through the hub to be projected toward the sign. A heat dissipation fan with a non-transforming luminous mark as described in claim 1, wherein the stator assembly has two end faces opposite to each other, the at least one stator channel passes through the two end faces, and the light irradiated by the at least one peripheral light-emitting element enters the at least one stator channel from one of the two end faces and is emitted from the other of the two end faces. As described in claim 1, the heat dissipation fan with a non-transforming luminous sign, wherein the at least one circuit board is also configured with at least one central light-emitting element, the at least one central light-emitting element corresponds to the axis, and the light irradiated by the at least one central light-emitting element is directed toward the sign through the axis. A heat dissipation fan with a non-rotating luminous sign as described in claim 7, wherein the central axis is provided with a hollow channel, and the light irradiated by the at least one central light-emitting element is directed toward the sign through the hollow channel. The heat dissipation fan with a non-rotating luminous sign as described in claim 7 further includes a light guide plate having a second fixed portion, the axis bridge-fixed to the first fixed portion and the second fixed portion, the sign is arranged on the light guide plate corresponding to the axis, and the light irradiated by the at least one centered light-emitting element is projected toward the light guide plate and the sign through the axis. A heat dissipation fan with a non-transforming luminous sign as described in claim 9, wherein the light guide plate is also provided with a light diverging structure, the at least one central light-emitting element corresponds to one end of the axis, the light diverging structure corresponds to the other end of the axis and is provided with the second fixing portion. A heat dissipation fan with a non-rotating luminous sign as described in claim 1, wherein the shaft connection structure includes a hollow sleeve and at least two bearings, the hollow sleeve is connected to the wheel hub and penetrates the wheel surface, and the at least two bearings are disposed in the hollow sleeve. The heat dissipation fan with a non-rotating luminous sign as described in claim 1 also includes an elastic element, which is sleeved on the central axis and elastically supported between the pivot structure and the carrier.