US20140112771A1

US20140112771A1 - Fan assembling structure and heat dissipating device

Info

Publication number: US20140112771A1
Application number: US13/845,680
Authority: US
Inventors: Weiguo LI; Zhichao BA
Original assignee: Delta Electronics Power Dongguan Co Ltd
Current assignee: Delta Electronics Power Dongguan Co Ltd
Priority date: 2012-10-23
Filing date: 2013-03-18
Publication date: 2014-04-24
Also published as: CN103781326A; TW201416566A; TWI502137B

Abstract

The invention provides a fan assembling structure and a heat dissipating device. The fan assembling structure comprises a first assembling board for assembling a fan thereon and a second assembling board connected to the first assembling board, the fan comprising a frame and blades disposed in the frame assembled to the first assembling board, the frame having an upper board, a lower board and a circular connector connected between the upper board and the lower board, the lower board including a first side edge, a second side edge, a third side edge and a fourth side edge in sequential connection.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims benefits of Chinese Patent Application No. 201210409085.X, filed on Oct. 23, 2012 in the State Intellectual Property Office of China, the disclosure of which is incorporated herein by reference in its entirety.

TECHNICAL FIELD

The present disclosure relates to a fan assembling structure and a heat dissipating device.

BACKGROUND

The heat generated from different electronic devices operation increases with higher working frequency. As a result, it is important to remove heat from electronic devices.
The conventional fan is provided with four fixing holes at four corners of its frame. Four bolts are inserted in the fixing holes for fixing the fan. However, tools such as a screwdriver and four times of repeat screwing are required to fix the fan, thereby resulting in high labor hours. Besides, when the fan is fixed by screws, the fixing hole may be damaged from improper torque force by the screwdriver, and the fan may be unseated. Due to repeatedly assembling and detaching, the self-tapping screw and the plastic frame may be worn out, and the entire fan may be damaged.

SUMMARY

Embodiments of the invention provide a fan assembling structure to solve the labor-costing, bad-assembling and worn-out problems during assembling the fan in the conventional technology.
One aspect of the invention provides a fan assembling structure comprising a first assembling board for assembling a fan thereon and a second assembling board connected to the first assembling board, the fan comprising a frame and blades disposed in the frame assembled to the first assembling board, the frame having an upper board, a lower board and a circular connector connected between the upper board and the lower board, the lower board including a first side edge, a second side edge, a third side edge and a fourth side edge in sequential connection. The first assembling board comprises a bottom plate and a side plate perpendicular to the bottom plate, the bottom plate comprises a first side edge, a second side edge, a third side edge and a fourth side edge in sequential connection, the side plate is connected to the fourth side edge of the bottom plate, and the bottom plate comprises a ventilating area corresponding to the fan, and two bending edges are disposed at opposite sides of the ventilating area along a direction parallel to the first side edge and the third side edge of the bottom plate and extend towards the ventilating area to form a sliding slot between the two bending edges and the bottom plate, the slide slot is used for sliding the fan therethrough from the second side edge of the bottom plate on the first assembling board to a predetermined position.
For example, the bottom plate and the side plate are integrally formed.
For example, a distance between the second side edge and the fourth side edge of the bottom plate is equal to a distance between the second side edge and the fourth side edge of the lower board of the fan.
For example, the side plate comprises a protrusion protruding inwardly at a side facing the fan and between the two bending edges, and the second assembling board comprises a protrusion protruding inwardly at a side facing the fan and between the two bending edges.
For example, a distance between upper ends of the two protrusions and the bottom plate is less than or equal to a distance between the lower surface of the upper board and the lower surface of the lower board of the fan.
For example, the two protrusions abut against the circular connector of the fan.
For example, each of the bending edges comprises a blocking portion extending perpendicularly from the bottom plate and a horizontal portion connected to the blocking portion, a distance between the two blocking portions is equal to a distance between the first side edge and the third side edge of the lower board of the fan.
For example, a distance between the horizontal portion of each bending edge and the bottom plate is equal to a thickness of the lower board.
For example, a distance between the horizontal portion of each bending edge and the bottom plate is equal to a distance between the upper surface of the upper board and the lower surface of the lower board.
For example, the bending edge comprises an inclined portion forming an angle of less than 90 degrees with respect to the bottom plate for holding the first side edge and the third side edge of the lower board.
Another aspect of the invention provides a heat dissipating device comprising a fan and a fan assembling structure, the fan comprising a frame and blades disposed in the frame, the frame having an upper board, a lower board and a circular connector connected between the upper board and the lower board, the lower board including a first side edge, a second side edge, a third side edge and a fourth side edge in sequential connection, the assembling structure comprising a first assembling board for assembling the fan and a second assembling board connected to the first assembling board, the first assembling board comprising a bottom plate and a side plate perpendicular to the bottom plate, the bottom plate comprises a first side edge, a second side edge, a third side edge and a fourth side edge in sequential connection, the side plate is connected to the fourth side edge of the bottom plate. The bottom plate comprises a ventilating area corresponding to the fan, and two bending edges are disposed at the periphery of the ventilating area along the direction parallel to the first side edge and the third side edge and extend towards the ventilating area to form a sliding slot between the two bending edges and the bottom plate, the slide slot is used for sliding the fan therethrough from the second side edge of the bottom plate on the first assembling board to a predetermined position.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective diagram showing a fan in an embodiment of the invention.

FIG. 2 is a perspective diagram showing the first assembling board in an embodiment of the invention.

FIG. 3 is a perspective diagram showing the combination of the fan and the first assembling board in an embodiment of the invention.

FIG. 4 is a perspective diagram showing the fan assembling structure in an embodiment of the invention.

FIG. 5 is a side view diagram showing the combination of the fan and the first assembling board in an embodiment of the invention.

FIG. 6 is a side view diagram showing the combination of the fan and the first assembling board in another embodiment of the invention.

FIG. 7 is a side view diagram showing the combination of the fan and the first assembling board in still another embodiment of the invention.

DETAILED DESCRIPTION

Hereinafter, in the embodiments described in detail referring to the accompanying drawing, the fan 300 is assembled between a first assembling board 100 such as a lower cover of a chassis and a second assembling board 200 such as an upper cover of the chassis, but the invention is not limited thereto.
As shown in FIG. 1 through FIG. 4, an embodiment provides a fan assembling structure including a first assembling board (such as a lower cover of a chassis) 100, a second assembling board 200 (such as an upper cover of the chassis) and a fan 300 assembled to the first assembling board 100.
The fan 300 comprises a frame 310 and blades 320 disposed in the frame 310. The frame 310 comprises an upper board 311 and a lower board 312 spaced with a certain distance and a circular connector 313 connected between the upper board 311 and the lower board 312. The lower board 312 comprises a first side edge 3121, a second side edge 3122, a third side edge 3123 and a fourth side edge 3124 in sequential connection and constituting a quadrangle (usually a square).
The first assembling board 100 comprises a bottom plate 110 and a side plate 120 perpendicular to the bottom plate 110. The bottom plate 110 comprises a first side edge 1101, a second side edge 1102, a third side edge 1103 and a fourth side edge 1104 in sequential connection and constituting a quadrangle (usually a rectangle). The distance between the second side edge 1102 and the fourth side edge 1104 of the bottom plate 110 is equal to the distance between the second side edge 3122 and the fourth side edge 3124 of the lower board 312. The side plate 120 is connected to the fourth side edge 1104 of the bottom plate 110. In the embodiment, the bottom plate 110 and the side plate 120 are integrally formed. In other embodiments, the side plate 120 may be fixed to a side edge of the bottom plate 110 by riveting or welding. The bottom plate 110 is provided with a ventilating area 111 formed by a plurality of through holes on the bottom plate 110, and the position of the ventilating area 111 corresponds to the position of the fan 300. Two bending edges 112 are disposed on opposite sides of the ventilating area 111 along the direction parallel to the first side edge 1101 and the third side edge 1103 and bending towards the ventilating area 111, thereby forming a sliding slot 113 between the two bending edges 112 and the bottom plate 110. In an embodiment of the invention, the bending edges 112 are formed by punching the bottom plate 110. The bending edges 112 may also be disposed at the bottom plate 110 by other methods such as riveting. The second assembling board 200 may be assembled (such as by buckling) to the first assembling board 110, namely the second assembling board 200 is connected to the second side edge 1102 of the bottom plate 110.
A side of the side plate 120 is provided with a inward protrusion 121 towards the fan (as shown in FIG. 2) and between the two bending edges 112, and a side of the second assembling board 200 is provided with a inward protrusion 201 towards the fan (as shown in FIG. 4) and between the two bending edges 112, the distance between the upper ends of the two protrusions 121 and 201 is less than or equal to the distance between the lower surface of the upper board 311 and the lower surface of the lower board 312, namely the positions of the two protrusions 121 and 201 correspond to the circular connector 313 of the fan 300. The protrusion 121 can be formed by punching the side plate 120, and the protrusion 201 can be formed by punching the second assembling board 200.
As shown in FIG. 5, in an embodiment, each bending edge 112 comprises a blocking portion 1121 extending perpendicularly from the bottom plate 110 and a horizontal portion 1122 connected to the blocking portion 1121. The distance between the blocking portions 1121 of the two bending edges 112 (the width of the sliding slot 113) is equal to the distance between the first side edge 3121 and the third side edge 3123 of the lower board 312. The distance between the horizontal portion 1122 of the bending edge 112 and the bottom plate 110 (the height of the sliding slot 113) is equal to the thickness of the lower board 312. As shown in FIG. 6, in another embodiment, the bending edge 112 comprises an inclined portion 1123 forming an angle of less than 90 degrees with respect to the bottom plate 110 for holding the first side edge 3121 and the third side edge 3123 of the lower board 312. During assembling, the fan 300 is pushed from the second side edge 1102 of the bottom plate 110, the first side edge 3121 and the third side edge 3123 of the lower board 312 are engaged into the sliding slot 113 and slide along the sliding slot 113 until the fan 300 abuts against the side plate 120 and the protrusion 121 abuts against the circular connector 313. The second assembling board 200 is then assembled (such as by buckling) to the first assembling board 100, the protrusion 201 abuts against the circular connector 313 to fix the fan to the predetermined position.
As shown in FIG. 7, in still another embodiment, each bending edge 112 comprises a blocking portion 1121 extending perpendicularly from the bottom plate 110 and a horizontal portion 1122 connected to the blocking portion 1121. The distance between the blocking portions 1121 of the two bending edges 112 is equal to the distance between the first side edge 3121 and the third side edge 3123 of the lower board 312. The distance between the horizontal portion 1122 of the bending edge 112 and the bottom plate 110 is equal to the distance between the upper surface of the upper board 313 and the lower surface of the lower board 312. During assembling, the fan 300 is pushed from the second side edge 1102 of the bottom plate 110, the upper board 311 and the lower board 312 are engaged into the sliding slot 113 and slide along the sliding slot 113 until the fan 300 abuts against the side plate 120 and the protrusion 121 abuts against the circular connector 313.
The second assembling board 200 is then assembled (such as by buckling) to the first assembling board 100, and the protrusion 201 abuts against the circular connector 313 to fix the fan to the predetermined position.
According to an embodiment of the invention, a heat dissipating device comprising a fan and a fan assembling structure as discussed above is provided.
One or more embodiments of the invention provides one or more of the following beneficial effects.
When the fan is assembled, the fan is guided by the sliding slot, and is abutted and fixed by the side plate and its protrusion, and the second assembling board and its protrusion. As a result, other fixing parts are not needed, and the labor-costing is reduced.
The bad-assembling and worn-out risk of the fan are also decreased.
The assembling structure according to exemplary embodiments may be used without changing the existing structure of the fan.
Although the disclosure has been described as above in reference to several exemplary embodiments, it is to be understood that the terms used therein are just illustrative and exemplary rather than restrictive. Since the disclosure can be applied in various forms without departing from the spirit or principle of the invention, it is to be understood that the abovementioned embodiments will not be limited to any specific detail mentioned above, rather, they should be construed broadly in the spirit or concept of the invention defined by the appended claims. Therefore, the present invention aims to cover all the modifications or variations falling within the protection scope defined by the appended claims.

Claims

What is claimed is:

1. A fan assembling structure, comprising a first assembling board for assembling a fan thereon and a second assembling board connected to the first assembling board, the fan comprising a frame and blades disposed in the frame assembled to the first assembling board, the frame having an upper board, a lower board and a circular connector connected between the upper board and the lower board, the lower board including a first side edge, a second side edge, a third side edge and a fourth side edge in sequential connection, wherein,

the first assembling board comprises a bottom plate and a side plate perpendicular to the bottom plate, the bottom plate comprises a first side edge, a second side edge, a third side edge and a fourth side edge in sequential connection, the side plate is connected to the fourth side edge of the bottom plate, and

the bottom plate comprises a ventilating area corresponding to the fan, and two bending edges are disposed at opposite sides of the ventilating area along a direction parallel to the first side edge and the third side edge of the bottom plate and extend towards the ventilating area to form a sliding slot between the two bending edges and the bottom plate, the slide slot is used for sliding the fan therethrough from the second side edge of the bottom plate on the first assembling board to a predetermined position.

2. The fan assembling structure according to claim 1, wherein the bottom plate and the side plate are integrally formed.

3. The fan assembling structure according to claim 1, wherein a distance between the second side edge and the fourth side edge of the bottom plate is equal to a distance between the second side edge and the fourth side edge of the lower board of the fan.

4. The fan assembling structure according to claim 1, wherein the side plate comprises a protrusion protruding inwardly at a side facing the fan and between the two bending edges, and the second assembling board comprises a protrusion protruding inwardly at a side facing the fan and between the two bending edges.

5. The fan assembling structure according to claim 4, wherein a distance between upper ends of the two protrusions and the bottom plate is less than or equal to a distance between the lower surface of the upper board and the lower surface of the lower board of the fan.

6. The fan assembling structure according to claim 4, wherein the two protrusions abut against the circular connector of the fan.

7. The fan assembling structure according to claim 1, wherein each of the bending edges comprises a blocking portion extending perpendicularly from the bottom plate and a horizontal portion connected to the blocking portion, a distance between the two blocking portions is equal to a distance between the first side edge and the third side edge of the lower board of the fan.

8. The fan assembling structure according to claim 7, wherein a distance between the horizontal portion of each bending edge and the bottom plate is equal to a thickness of the lower board.

9. The fan assembling structure according to claim 7, wherein a distance between the horizontal portion of each bending edge and the bottom plate is equal to a distance between the upper surface of the upper board and the lower surface of the lower board.

10. The fan assembling structure according to claim 1, wherein the bending edge comprises an inclined portion forming an angle of less than 90 degrees with respect to the bottom plate for holding the first side edge and the third side edge of the lower board.

11. A heat dissipating device comprising a fan and a fan assembling structure, the fan comprising a frame and blades disposed in the frame, the frame having an upper board, a lower board and a circular connector connected between the upper board and the lower board, the lower board including a first side edge, a second side edge, a third side edge and a fourth side edge in sequential connection, the assembling structure comprising a first assembling board for assembling the fan and a second assembling board connected to the first assembling board, the first assembling board comprising a bottom plate and a side plate perpendicular to the bottom plate, the bottom plate comprises a first side edge, a second side edge, a third side edge and a fourth side edge in sequential connection, the side plate is connected to the fourth side edge of the bottom plate,

wherein the bottom plate comprises a ventilating area corresponding to the fan, and two bending edges are disposed at the periphery of the ventilating area along the direction parallel to the first side edge and the third side edge and extend towards the ventilating area to form a sliding slot between the two bending edges and the bottom plate, the slide slot is used for sliding the fan therethrough from the second side edge of the bottom plate on the first assembling board to a predetermined position.