Cooling fan with luminous device

Abstract

A cooling fan with luminous device comprises a fan frame, a blade wheel and a luminous member. The fan frame provides a fixing part at the corners thereof respectively and has a flow passage formed of a first hollow opening and a second hollow opening at two lateral sides thereof with a hub seat being disposed at the center of the flow passage. The blade wheel is movably attached to the hub seat and has a hub with a plurality of fan blades extending outward from the hub. The luminous member is received in the fixing part and provides an anode end and a cathode end. The fixing part has a recess part from the first hollow opening toward the second hollow opening and is fixedly attached with the luminous member in a way of the anode end spacing from the cathode end with the fixing part such that the anode end and the cathode end are oppositely disposed at two lateral sides of the fixing part to prevent from accidentally touching to each other.

Description

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention is related to a cooling fan with luminous device and particularly to a cooling fan, which is provided with a luminous member.

2. Brief Description of the Related Art

Due to the computer being getting progress and operational speed thereof being getting faster, the temperature thereof is getting higher. In order to solve the problem of higher temperature, the fan is most popularly used to occur convection for the cool air carrying the hot air outward so that the computer can run with an appropriate temperature.

In order to allow the fan being attractable in addition to the function of removing heat, how to make the appearance thereof change to appeal the user is subject worth to care. It is incapable of changing the basic configuration of the fan because the function and use may be influenced. An luminous member is considered to add to the fan for stimulating the vision of the user to create purchase desire.

Taiwanese Patent Official gazette No. 520149 discloses a luminous cooling fan, which includes a fan base, a fan blade set and several light emitting diodes. The fan blade set is rotationally attached to a support frame of the fan base such that the cooling fan allows air to generate convection. The fan blade set is made of fluorescent material to provide effect of emitting fluorescent light at night. Further, the fan base provides equidistantly spaced slots at the periphery for being inserted with a light emitting diode (LED) respectively and the respective LED is electrically connected to a print circuit board and with a lead wire in series. Meanwhile, the print circuit board is connected to the fan blade set with a lead wire too such that the respective LED can be light up during the fan blade set rotating. The light emitted from the respective LED in the slots can refract in addition to the fluorescent light to produce a novel visional effect with radiation light combining the fluorescent light.

The preceding prior art has a hazard problem that the anode and the cathode of the respective LED easily touch to each other resulting from vibration during the fan rotating due to well separation of the anode from the cathode not being implemented and it is easy to occur phenomenon of short circuit. More seriously, it is very possible to cause damage of the fan and, even more, the computer will be shut down because of temperature rise.

Taiwanese Patent Official gazette No. 539169 discloses another luminous cooling fan, which includes a shaft at a frame of the fan providing a base, a circuit board attached to the base, a stator provided on the circuit board and a fan blade set joined to the stator. The inner wall of the frame has one or more mounting holes and a LED is received in the mounting holes respectively. The LED is powered on synchronously with the fan by a driving circuit on the circuit board or can be driven by an external control circuit. The LED emits light toward blades of the fan blade set and frame is made of colored plastics or transparent plastics such that colorful dynamic light can be generated during the fan blade set rotating.

Similarly, the anode and the cathode of the LED are not well separated such that it is unavoidable to cause the phenomenon of short circuit and it can result in damage of the fan and even the other electric parts are hazardously affected.

SUMMARY OF THE INVENTION

An object of the present invention is to provide a cooling fan with luminous device in which the fan frame thereof has a recess part to receive a luminous member and a fixing part separates the anode end from the cathode end to avoid the anode end and the cathode end accidentally touching to each other and occurring short circuit.

Another object of the present invention is to provide a cooling fan with luminous device with which the entire fan can generate visional effect with light refraction or reflection because of luminous members.

BRIEF DESCRIPTION OF THE DRAWINGS

The detail structure, the applied principle, the function and the effectiveness of the present invention can be more fully understood with reference to the following description and accompanying drawings, in which:

FIG. 1 is an exploded perspective view of the preferred embodiment of a cooling fan with luminous device according to the present invention;

FIG. 2 is another exploded perspective of the preferred embodiment of a cooling fan with luminous device according to the present invention;

FIG. 3 is an assembled view of FIG. 1;

FIG. 4 is an assembled view of FIG. 2;

FIG. 5 is a top view of the preferred embodiment of a cooling fan with luminous device according to the present invention; and

FIG. 6 is a sectional view of the preferred embodiment of a cooling fan with luminous device according to the present invention.

DETAILED DESCRIPTION OF THE INVENTION

Referring to FIGS. 1 to 4, the preferred embodiment of a cooling fan with luminous device according to the present invention comprises a fan frame 11, a circuit board 12, a blade wheel 13 and at least a luminous member 14. The blade wheel 13, which can be made of non-transparent material, transparent material, translucent material or reflective material, includes a hub 131 and a plurality of fan blades 132 extending outward from the hub 131. The fan frame 11, which can be made of transparent or translucent material, provides a central flow passage communicating with a first hollow opening 111 and a second hollow opening 112 at two lateral sides thereof for fluid flowing through. A hub seat 114, which is connected to a support part 113, is disposed in the flow passage and the hub seat 114 is movably attached with the blade wheel 13. A fixing part 15 is provided at four corners of the fan frame 11 respectively and the fixing part 15 has a lower through hole 152 at both sides thereof respectively. Further, a recess part 151 is formed between the first hollow opening 111 and the second hollow opening 112 to fixedly attach with the luminous member 14. A fixing cap 16 has a hook engaging part 161 to engage with the recess part 151 and the luminous member 14 is secured between the recess part 151 and the fixing cap 16. A circuit board 12 is attached to the hub seat 114 under the blade wheel 13 to drive the blade wheel 13 and light up the luminous member 14.

The recess part 151 provides a through hole penetrating the fan frame 11 with a receiving part 1511 capable of being hooked by the hook engaging part 161 of the fixing cap 16. The luminous member 14 is a light emitting diode (LED) with an anode end 141 and a cathode end 142 and the luminous member 14 is fixed to the recess part 151 in a way of the top end 143 thereof toward the center of the fan frame 11. The anode end 141 and the cathode 142 pass through the receiving part 1511 to be spaced with the fixing part 15 so that the anode end 141 and the cathode end 142 are oppositely disposed at both sides of the fixing part 15 to prevent from accidentally touching to each other. The circuit board 12 externally connects with the power supply line 121 and the power supply line 121 extends along the support part 113 and passes through the through hole 152 to connect with the anode end 141 and the cathode end 142 for supplying power needed by the luminous member 14.

Referring to FIGS. 5 and 6, when the circuit board 12 actuates the blade wheel 13 to rotate in the fan frame 11, fluid is dragged to pass through the first hollow opening 111 and the second hollow opening 112 such that the fluid occur a phenomenon of convection to perform heat dissipation. Meanwhile, the circuit board 12 provides power to the anode end 141 and the cathode end 142 of the luminous member 14 via the power supply line 121 such that the luminous member 14 can produce light to penetrate transparent or translucent fan frame 11 so as to obtain a visual effect with lighting. Further, the light refracts and reflects during the blade wheel 13 rotating because of the blade wheel 13 being made of transparent, translucent or reflective material such that single light source can generate multiple light points to result in a visual effect of the entire fan frame 11 and the blade wheel 13 being brilliant. In addition, the anode end 141 and the cathode end 142 being spaced by the fixing part 14 can prevent the anode 141 and the cathode 142 from accidentally touching to each other and occurring short circuit.

While the invention has been described with referencing to preferred embodiments thereof, it is to be understood that modifications or variations may be easily made without departing from the spirit of this invention, which is defined by the appended claims.

Claims

1. A cooling fan with luminous device, comprising

a fan frame, providing a fixing part at the corners, having a flow passage formed of a first hollow opening and a second hollow opening at two lateral sides thereof, having a hub seat being disposed at the center of the flow passage;

a blade wheel, being movably attached to the hub seat, having a hub with a plurality of fan blades extending outward from the hub; and

a luminous member, being received in the fixing part and providing an anode end and a cathode end;

characterized in that the fixing part has a recess part from the first hollow opening toward the second hollow opening or being fixedly attached with the luminous member in a way of the anode end spacing from the cathode end with the fixing part such that the anode end and the cathode end are oppositely disposed at two lateral sides of the fixing part.

2. The cooling fan with luminous device as defined in claim 1, wherein the luminous member is received in the recess part in a way of the top thereof facing the center of the fan frame.

3. The cooling fan with luminous device as defined in claim 1, wherein the luminous member is a light emitting diode (LED).

4. The cooling fan with luminous device as defined in claim 1, wherein the fan frame is made of transparent or translucent material.

5. The cooling fan with luminous device as defined in claim 1, wherein the blade wheel is made of non-transparent, transparent, translucent or reflective material.

6. The cooling fan with luminous device as defined in claim 1, wherein the fan frame provides a fixing cap engages with the recess part by way of hook.

7. The cooling fan with luminous device as defined in claim 6, wherein the fixing cap has a hook engaging part to secure to the recess part.

8. The cooling fan with luminous device as defined in claim 7, wherein the recess part provides a hooked part to be hooked with the hook engaging part of the fixing cap.