TWM596374U - Radiator - Google Patents

Abstract

A heat dissipation device includes a fan frame, a fan blade, a driving component, a light-emitting element, a light guide and a decorative plate. The fan blade is rotatably provided on the fan frame through the bearing. The driving assembly includes a driving circuit board, a stator and a rotor. The driving circuit board is disposed on the fan frame. The stator is installed on the driving circuit board. The rotor is installed on the fan blade. The light emitting element is installed on the driving circuit board. The light guide includes a light exit portion and a light incident portion. The light-emitting part is stacked on the side of the stator of the driving assembly away from the driving circuit board. The light incident portion protrudes from the light exit portion and extends toward the light emitting element on the driving circuit board. The trim panel consists of connected panels and pillars. The plate body is connected to the bottom plate through the pillar, and is fixed relative to the fan blade. The board is covered with fan blades and has markings.

Description

Radiator

The present invention relates to a heat dissipation device, especially a heat dissipation device in which the decorative plate is fixed relative to the fan blade.

As the processing speed and performance of electronic devices such as central processing units increase, the electronic devices generate more heat during operation. The generated heat increases the temperature of the electronic device, and if the heat cannot be efficiently discharged to the outside, the reliability and performance of the electronic device will decrease. In order to prevent the electronic device from overheating, a heat sink such as a fan is used to effectively dissipate the heat generated by the electronic device, thereby ensuring the normal operation of the electronic device.

In the case of using a fan or other rotating cooling device, identification marks such as brand logos, design patterns, or other patterns are printed on the fan blades for users to identify the brand or manufacturer of the fan. However, for users, such identification marks will be difficult to recognize as the blades rotate.

The present invention is to provide a heat dissipation device, so that the user can clearly recognize the identification mark when the fan blade rotates.

The heat dissipation device disclosed in an embodiment of the present invention includes a fan frame, a fan blade, a driving component, at least one light emitting element, a light guide, and a decorative plate. The fan frame includes a bottom plate and a bearing sleeve, and the bearing sleeve is connected to the bottom plate. The fan blade includes a hub and multiple blades. These blades are connected to the hub. The fan blade is rotatably disposed on the fan frame through at least one bearing. At least one bearing is located between the bearing sleeve and the hub. The driving assembly includes a driving circuit board, a stator and a rotor. The driving circuit board is arranged on the bottom plate of the fan frame. The stator is installed on the driving circuit board. The rotor is mounted on the hub of the fan blade. At least one light emitting element is installed on the driving circuit board. The light guide includes a light exit portion and at least a light incident portion. The light-emitting part is stacked on the side of the stator of the driving assembly away from the driving circuit board. The light incident portion protrudes from the light exit portion and extends toward the light emitting element on the driving circuit board. The trim panel includes a plate body and a pillar extending from the plate body. The plate body is connected to the bottom plate through the pillar, and is fixed relative to the fan blade. The plate body covers the hub and has a mark, and the light emitted by the light emitting element is used to illuminate the mark through the light guide.

The heat dissipation device disclosed in another embodiment of the present invention includes a fan frame, a fan blade, a driving component, at least one light-emitting element, a light guide, and a decorative plate. The fan frame includes a bottom plate and a bearing sleeve. The bearing sleeve is connected to the bottom plate. The fan blade includes a hub and multiple blades. These blades are connected to the hub. The fan blade is rotatably disposed on the fan frame through at least one bearing. At least one bearing is located between the bearing sleeve and the hub. The driving assembly includes a driving circuit board, a stator and a rotor. The driving circuit board is arranged on the bottom plate of the fan frame. The stator is installed on the driving circuit board. The rotor is mounted on the hub of the fan blade. The light-emitting element includes an expansion circuit board and a light source. The expansion circuit board is installed on a side of the driving circuit board away from the bottom plate, and extends in a direction away from the bottom plate, and the light source is arranged on the expansion circuit board. The light guide member is stacked on the side of the stator of the driving assembly away from the driving circuit board. The trim panel includes a plate body and a pillar extending from the plate body. The plate body is connected to the bottom plate through the pillar, and is fixed relative to the fan blade. The plate body covers the hub and has a mark, and the light emitted by the light source is used to illuminate the mark through the light guide.

According to the heat dissipation device of the above embodiment, by fixing the trim plate to the immovable pillar instead of the hub of the fan blade, when the blade rotates relative to the fan frame, the marked trim plate can remain fixed, thereby allowing the user to Clearly identify the mark on the decorative plate.

In addition, by directly contacting the light-emitting element to the driving circuit board, the wiring difficulty between the light-emitting element and the driving circuit board is reduced, and then the gap between the light-emitting element and the light guide member is further improved by, for example, the design of the expansion circuit board or the light entrance part Luminous efficiency of light-emitting elements.

The above description of the content of the present invention and the description of the following embodiments are used to demonstrate and explain the principles of the present invention, and provide a further explanation of the patent application scope of the present invention.

The embodiment disclosed herein relates to a heat dissipation device having an identification mark, and the identification mark is fixed relative to the moving part of the heat dissipation device. In this way, users can easily identify the brand or manufacturer of the heat sink. For example, in the case of using a fan or other rotating heat dissipation device, the identification mark is provided on the plate body where the rotating blade is relatively fixed. It should be noted that although the exemplary embodiments disclosed below take the fan as an example for illustration, these exemplary embodiments are not limited thereto; these exemplary embodiments are also applicable without departing from the spirit and scope of the present invention For other types of rotating heat sinks.

Please refer to FIGS. 1 to 2. FIG. 1 is a three-dimensional schematic diagram of a heat dissipation device according to an embodiment of the invention. FIG. 2 is an exploded schematic diagram of FIG. 1. In the exemplary embodiment, the heat sink 10 is a fan. However, the principles disclosed herein can also be applied to other types of heat dissipation devices. The heat dissipation device 10 includes a fan holder 100, a fan blade 200, a driving element 300, a plurality of light emitting elements 400 and a light guide 500 and a decorative plate 600.

Please refer to FIGS. 2 to 4. FIG. 3 is a partially enlarged schematic diagram of FIG. 2. 4 is a schematic cross-sectional view of FIG. 1.

The fan frame 100 includes a bottom plate 110, an annular side plate 120 and a bearing sleeve 130. The annular side plate 120 is connected to the periphery of the bottom plate 110 and extends vertically from the bottom plate 110. The bearing sleeve 130 is connected to the central portion of the bottom plate 110 and extends vertically from the bottom plate 110. In other words, the annular side plate 120 is circumferentially disposed in the surrounding area of the heat sink 10 and surrounds the bearing sleeve 130.

The blade 200 is rotatably provided on the bearing sleeve 130. The blade 200 includes a hub 210 and a plurality of blades 220 extending radially from the hub 210. In one embodiment, the blade 220 is an arched (or arcuate) structure that exhibits a curved shape or faces the rotation direction of the blade 220 in the reverse direction. The hub 210 includes a cover plate 211, an annular outer plate 212, and a middle tube 213. The cover plate 211 is horizontally disposed on the bottom plate 110 and has a plurality of openings O. The annular outer plate 212 and the middle tube 213 are radially spaced from each other.

These blades 220 are connected to the annular outer plate 212 and extend from the radially outer surface of the annular outer plate 212. The fan blade 200 is disposed on the bottom plate 110 of the fan frame 100 through a bearing 250 and a hollow column 260. In detail, the hollow column 260 is installed on the bottom plate 110 of the fan frame 100 and surrounded by the bearing sleeve 130. The bearing 250 is sandwiched between the hollow column 260 and the bearing sleeve 130 so that the hollow column 260 can rotate relative to the bearing sleeve 130 through the bearing 250. The middle tube 213 of the fan blade 200 is installed on the hollow column 260 so that the fan blade 200 can rotate relative to the fan frame 100.

The driving assembly 300 includes a driving circuit board 310, a stator 320 and a rotor 330. The driving circuit board 310 of the driving assembly 300 is disposed on the bottom plate 110. The stator 320 includes a fixing frame 321, a plurality of iron cores 322 and a plurality of coils 323. The fixing frame 321 is erected on the driving circuit board 310. The iron cores 322 are installed on different sides of the fixing frame 321, and the coils 323 are respectively installed on the iron cores 322. The rotor 330 is, for example, a magnet, and is disposed on the hub 210 of the blade 200. The rotor 330 is matched with the stator 320. When the driving circuit board 310 guides electric power to flow through the coils 323 of the stator 320, the rotor 330 rotates relative to the stator 320 and drives the fan blade 200 to rotate relative to the fan frame 100.

These light emitting elements 400 are, for example, light emitting diodes, and are disposed on the side of the driving circuit board 310 close to the cover plate 211 of the hub 210. The light emitting elements 400 are used to emit light, and the light is used to pass through the openings O.

In this embodiment, the number of the light-emitting elements 400 is multiple, but it is not limited thereto. In other embodiments, the number of light-emitting elements may be only a single.

The light guide 500 includes a light exit portion 510 and a plurality of light incident portions 520. The light emitting portion 510 is stacked on the side of the stator 320 of the driving assembly 300 away from the driving circuit board 310. Further, the light emitting portion 510 is interposed between the cover plate 211 of the hub 210 and the fixing frame 321 of the stator 320, and is stacked on the fixing frame 321 of the stator 320. The light incident part 520 protrudes from the light exit part 510 and extends toward the light emitting element 400 on the driving circuit board 310. The light emitted by the light emitting element 400 enters from the light incident portion 520 of the light guide 500 and is guided by the light incident portion 520 to be emitted from the light exit portion 510 of the light guide 500.

The trim panel 600 includes a board body 610 and a pillar 620 extending from the board body 610. The pillar 620 passes through the hollow pillar 260, and one end is fixed to the bottom plate 110 through a buckle 660, and the other end is connected to the trim plate 600, so that the plate body 610 is connected to the bottom plate 110 through the pillar 620, and is fixed relative to the fan blade 200. In addition, the plate body 610 is stacked on the hollow column 260 through a spacer 650.

The plate body 610 can be connected to the pillar 620 by various bonding means. For example, the board body 610 is fixed by nuts and bolts, screws, pins, rivets, anchors, sutures, crimps, buckles, shrink fits, magnetic attraction, snaps, combinations of the above, or the like. The board 610 has a mark 611. The light emitted by the light emitting element 400 is used to illuminate the mark 611 through the light guide 500 and the opening O of the cover plate 211 of the hub 210.

The board body 610 is made of a light-transmissive material such as a transparent or translucent material, wherein the transparent or translucent material includes acrylic, glass, plastic, etc., and the mark 611 is formed by a painting process. In short, in the painting process, a mask including the pattern of the mark 611 is provided on the board 610. Then the part of the board 610 that is not covered by this pattern will be painted and become opaque. In one embodiment, as shown in the figure, the shape of the mark 611 is an example of the English letter "A", but it is not limited thereto. In other embodiments, the mark may also be the name of the brand, the pattern of the brand, or any desired mark.

In an embodiment, the pillar 620 may be made of a light-transmitting material, where the transparent material is acrylic, glass, plastic, etc., for example. However, in other embodiments, the pillar may also be made of opaque material.

In an embodiment, the plate body can also be made by means of injection molding, and one end of the pillar is wrapped inside, so that the pillar and the plate body are fixed, and is not limited to the above-mentioned combination means.

When the driving assembly 300 drives the fan blade 200 to rotate, the plate body 610 remains fixed because it is fixed to the support post 620, and the light emitted by the light emitting element 400 is emitted through the light exit portion 510 of the light guide 500 to illuminate the mark of the plate body 610 611. Therefore, the user can recognize the mark 611 more clearly.

In one embodiment, the hub and blade of the fan blade can also be made of light-transmitting materials such as acrylic, glass, plastic, and the like. Therefore, the light emitted from the light emitting element can illuminate at least part or all of these blades through the hub.

Please refer to FIGS. 5 to 7. FIG. 5 is a schematic cross-sectional view of a heat dissipation device according to an embodiment of the invention. 6 is an exploded schematic view of the heat dissipation device of FIG. 5. 7 is a partially enlarged schematic diagram of FIG. 6.

In the exemplary embodiment, the heat sink 10a is a fan. However, the principles disclosed herein can also be applied to other types of heat dissipation devices. The heat dissipation device 10a includes a fan holder 100a, a fan blade 200a, a driving element 300a, a plurality of light emitting elements 400a, a light guide 500a, and a decorative plate 600a.

The fan frame 100a includes a bottom plate 110a, an annular side plate 120a, and a bearing sleeve 130a. The annular side plate 120a is connected to the periphery of the bottom plate 110a and extends vertically from the bottom plate 110a. The bearing sleeve 130a is connected to the central portion of the bottom plate 110 and extends vertically from the bottom plate 110a. That is, the annular side plate 120a is circumferentially disposed in the surrounding area of the heat dissipation device 10a and surrounds the bearing sleeve 130a.

The blade 200a is rotatably provided in the bearing sleeve 130a. The blade 200a includes a hub 210a and a plurality of blades 220a extending radially from the hub 210a. In an embodiment, the blade 220a is an arch-shaped (or arc-shaped) structure that exhibits a curved shape or faces the rotation direction of the blade 220a in the reverse direction. The hub 210a includes a cover plate 211a, an annular outer plate 212a, and a middle tube 213a. The cover plate 211a is horizontally disposed on the bottom plate 110a, and has a plurality of openings O. The annular outer plate 212a and the middle tube 213a are radially spaced from each other.

These blades 220a are connected to the annular outer plate 212a and extend from the radially outer surface of the annular outer plate 212a. The blade 200a is disposed on the bottom plate 110a of the fan frame 100a through a bearing 250a and a hollow column 260a. In detail, the hollow column 260a is installed on the bottom plate 110a of the fan frame 100a, and is surrounded by the bearing sleeve 130a. The bearing 250a is interposed between the hollow column 260a and the bearing sleeve 130a, so that the hollow column 260a can rotate relative to the bearing sleeve 130a through the bearing 250a. The middle tube 213a of the blade 200a is installed on the hollow column 260a, so that the blade 200a can rotate relative to the fan frame 100a.

The driving assembly 300a includes a driving circuit board 310a, a stator 320a and a rotor 330a. The driving circuit board 310a of the driving assembly 300a is disposed on the bottom plate 110a. The stator 320a includes a fixing frame 321a, a plurality of iron cores 322a, and a plurality of coils 323a. The fixing frame 321a is mounted on the driving circuit board 310a. The iron cores 322a are installed on different sides of the fixing frame 321a, and the coils 323a are respectively installed on the iron cores 322a. The rotor 330a is, for example, a magnet, and is provided on the hub 210a of the blade 200a. The rotor 330a is matched with the stator 320a. When the driving circuit board 310a guides electric power to flow through the coils 323a of the stator 320a, the rotor 330a rotates relative to the stator 320a and drives the blade 200a to rotate relative to the fan frame 100a.

Each light emitting element 400a includes an expansion circuit board 410a and two light sources 420a. The expansion circuit board 410a is installed on a side of the driving circuit board 310a away from the bottom board 110a, and extends in a direction away from the bottom board 110a. The two light sources 420a are respectively disposed on opposite sides of the expansion circuit board 410a. The light source 420a is, for example, a light emitting diode, and is used to emit light, and the light is used to pass through the openings O.

In this embodiment, the number of the light-emitting elements 400a is multiple, but not limited to this. In other embodiments, the number of light-emitting elements may be only a single. In addition, in this embodiment, each expansion circuit board 410a is equipped with two light sources 420a, but it is not limited thereto. In other embodiments, each expansion circuit board may only be equipped with a single light source.

The light guide 500a is stacked on a side of the stator 320a of the driving assembly 300a away from the driving circuit board 310a. Further, the light guide 500a is interposed between the cover plate 211a of the hub 210a and the fixing frame 321a of the stator 320a, and is stacked on the fixing frame 321a of the stator 320a. The light emitted by the light source 420a is guided by the light guide 500a and is directed to the cover plate 211a of the wheel housing 210a.

The trim panel 600a includes a board body 610a and a pillar 620a extending from the board body 610a. The pillar 620a passes through the hollow pillar 260a, and one end is fixed to the bottom plate 110a through a buckle 660a, and the other end is connected to the trim panel 600a, so that the plate body 610a is connected to the bottom plate 110a through the pillar 620a and is fixed relative to the blade 200a. In addition, the plate body 610a is stacked on the hollow column 260a through a spacer 650a.

The plate body 610a can be connected to the pillar 620a by various coupling means. For example, the board body 610a is fixed by nuts and bolts, screws, pins, rivets, anchors, sutures, crimps, buckles, shrink fits, magnetic attraction, snaps, combinations of the above, or the like. The board 610a has a mark 611a. The light emitted by the light source 420a is used to illuminate the mark 611a through the light guide 500a and the opening O of the cover plate 211a of the hub 210a.

The board body 610a is made of a light-transmissive material such as a transparent or translucent material, wherein the transparent or translucent material includes acrylic, glass, plastic, etc., and the mark 611a is formed by a paint spraying process. In short, in the painting process, a mask including the pattern of the mark 611a is provided on the board body 610a. Then, the part of the board 610a that is not covered by this pattern will be painted and become opaque. In an embodiment, as shown in the figure, the shape of the mark 611a is exemplified by the English letter "A", but it is not limited thereto. In other embodiments, the mark may also be the name of the brand, the pattern of the brand, or any desired mark.

In an embodiment, the pillar 620a may be made of a light-transmitting material, wherein the transparent material is acrylic, glass, plastic, etc., for example. However, in other embodiments, the pillar may also be made of opaque material.

In an embodiment, the plate body can also be made by means of injection molding, and one end of the pillar is wrapped inside, so that the pillar and the plate body are fixed, and is not limited to the above-mentioned combination means.

When the driving assembly 300a drives the fan blade 200a to rotate, the plate body 610a remains fixed because it is fixed to the support post 620a, and the light emitted by the light emitting element 400a is emitted through the light exit portion 510a of the light guide 500 to illuminate the mark of the plate body 610a 611a. Therefore, the user can recognize the mark 611a more clearly.

In one embodiment, the hub and blade of the fan blade can also be made of light-transmitting materials such as acrylic, glass, plastic, and the like. Therefore, the light emitted from the light emitting element can illuminate at least part or all of these blades through the hub.

According to the heat dissipation device of the above embodiment, by fixing the trim plate to the immovable pillar instead of the hub of the fan blade, when the blade rotates relative to the fan frame, the marked trim plate can remain fixed, thereby allowing the user to Clearly identify the mark on the decorative plate.

In addition, by directly contacting the light-emitting element to the driving circuit board, the wiring difficulty between the light-emitting element and the driving circuit board is reduced, and then the gap between the light-emitting element and the light guide member is further improved by, for example, the design of the expansion circuit board or the light entrance part Luminous efficiency of light-emitting elements.

The features of the various embodiments are described above so that those who are familiar with relative memory can better understand the present invention. Although the present invention is disclosed as above with the foregoing embodiments, it is not intended to limit the present invention. Anyone who is familiar with the similar arts can make some changes and retouching without departing from the spirit and scope of the present invention. The scope of patent protection for new models shall be subject to those defined in the scope of patent applications attached to this specification.

10, 10a: heat sink 100, 100a: fan frame 110, 110a: bottom plate 120, 120a: annular side plate 130, 130a: bearing sleeve 200, 200a: fan blade 210, 210a: wheels 211, 211a: cover plate 212, 212a: annular outer plate 213, 213a: middle tube 220, 220a: blade 250, 250a: bearing 260, 260a: hollow column 300, 300a: drive assembly 310, 310a: drive circuit board 320, 320a: stator 321, 321a: fixed frame 322, 322a: iron core 323, 323a: coil 330, 330a: rotor 400, 400a: light emitting element 410a: Expansion circuit board 420a: light source 500, 500a: light guide 510: Light exit 520: Light entrance department 600, 600a: trim 610, 610a: plate body 611, 611a: mark 620, 620a: pillar 650, 650a: spacer 660, 660a: buckle O: opening

FIG. 1 is a schematic perspective view of a heat dissipation device according to an embodiment of the present invention. FIG. 2 is an exploded schematic diagram of FIG. 1. FIG. 3 is a partially enlarged schematic view of FIG. 2. 4 is a schematic cross-sectional view of FIG. 1. 5 is a schematic cross-sectional view of a heat dissipation device according to an embodiment of the present invention. 6 is an exploded schematic view of the heat dissipation device of FIG. 5. 7 is a partially enlarged schematic diagram of FIG. 6.

10: Heat sink

100: fan frame

110: bottom plate

120: annular side plate

130: bearing sleeve

200: fan blade

210: Wheel

220: blade

250: Bearing

260: Hollow column

300: drive assembly

310: drive circuit board

320: stator

321: fixed frame

322: iron core

323: coil

330: rotor

400: light emitting element

500: light guide

510: Light exit

520: Light entrance department

600: Trim

610: board body

611: Mark

620: Pillar

650: spacer

660: buckle

O: opening

Claims (14)

A heat dissipation device, including: A fan frame includes a bottom plate and a bearing sleeve, the bearing sleeve is connected to the bottom plate; a fan blade includes a hub and a plurality of blades, the blades are connected to the hub, the blade can pass through at least one bearing The at least one bearing is rotatably disposed on the fan frame, and the at least one bearing is located between the bearing sleeve and the hub; a drive assembly includes a drive circuit board, stator, and a rotor, and the drive circuit board is disposed on the fan frame The bottom plate, the stator is installed on the drive circuit board, the rotor is installed on the hub of the fan blade; at least one light-emitting element is installed on the drive circuit board; a light guide includes a light exit portion and at least one input A light part, the light exit part is stacked on a side of the stator of the drive assembly away from the drive circuit board, the light entrance part protrudes from the light exit part and extends toward the light emitting element on the drive circuit board; and a decoration The plate includes a plate body and a pillar extending from the plate body, the plate body is connected to the bottom plate through the pillar and is fixed to the fan blade, the plate body covers the hub, and has a mark, and The light emitted by the light emitting element is used to illuminate the mark through the light guide. The heat dissipation device according to claim 1, further comprising a hollow column, the hollow column is disposed in the bearing sleeve, and at least a part of the pillar is located in the hollow column. The heat dissipation device according to claim 2, wherein the hub includes a cover plate and an annular outer plate, the annular outer plate is connected to the cover plate and extends from a radial outer edge of the cover plate, the cover plate has at least An opening, the light emitted by the light emitting element is used to illuminate the mark through the at least one opening. The heat dissipation device according to claim 3, wherein the hub further includes a middle tube connected to and extending from the radial inner edge of the cover plate, and the middle tube surrounds the hollow column. The heat dissipation device according to claim 1, wherein the plate body is integrally formed with the pillar. The heat dissipation device according to claim 1, wherein the plate body is independent of the pillar and connected to the pillar. The heat dissipation device according to claim 1, wherein the plate body is magnetically attracted to the pillar. A heat dissipation device, including: A fan frame includes a bottom plate and a bearing sleeve, the bearing sleeve is connected to the bottom plate; a fan blade includes a hub and a plurality of blades, the blades are connected to the hub, the blade can pass through at least one bearing The at least one bearing is rotatably disposed on the fan frame, and the at least one bearing is located between the bearing sleeve and the hub; a drive assembly includes a drive circuit board, stator, and a rotor, and the drive circuit board is disposed on the fan frame The bottom plate, the stator is installed on the drive circuit board, the rotor is installed on the hub of the fan blade; at least one light-emitting element includes an expansion circuit board and a light source, the expansion circuit board is installed on the drive circuit board away One side of the bottom plate extends away from the bottom plate, the light source is disposed on the expansion circuit board; a light guide, a side of the stator stacked on the driving component away from the driving circuit board; and a decoration The plate includes a plate body and a pillar extending from the plate body, the plate body is connected to the bottom plate through the pillar and is fixed to the fan blade, the plate body covers the hub, and has a mark, and The light emitted by the light source is used to illuminate the mark through the light guide. The heat dissipation device according to claim 8, further comprising a hollow column, the hollow column is disposed in the bearing sleeve, and at least a part of the pillar is located in the hollow column. The heat dissipation device according to claim 9, wherein the hub includes a cover plate and an annular outer plate, the annular outer plate is connected to the cover plate and extends from a radial outer edge of the cover plate, the cover plate has at least An opening, the light emitted by the light emitting element is used to illuminate the mark through the at least one opening. The heat dissipation device according to claim 10, wherein the hub further includes a middle tube connected to and extending from the radial inner edge of the cover plate, and the middle tube surrounds the hollow column. The heat dissipation device according to claim 8, wherein the plate body is formed integrally with the pillar. The heat dissipation device according to claim 8, wherein the plate body is independent of the pillar and connected to the pillar. The heat dissipation device according to claim 8, wherein the plate body is magnetically attracted to the pillar.

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