Heat dissipating device

A heat dissipating device includes an object, a housing having a chamber for receiving a driving device which includes a spindle extended out of the housing, a fan device is attached to the spindle of the driving device, for being rotated and driven by the driving device. A cap includes a locking device for locking the cap to the housing, to attach and to secure the housing to the object. The cap includes one or more catches engageable into lock notches of the housing, for securing the housing to the object with the catch. A guide arm may be attached to the housing for receiving one or more electrical cables.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a heat dissipating device, and more particularly to a heat dissipating device having a structure for easily attaching or securing to supporting objects.

2. Description of the Prior Art

Typical objects, such as computer facilities, integrated circuits, processor facilities, or the like may generate a great heat while working, such that one or more typical heat dissipating devices or heat sink assemblies are required to be attached onto the computer facilities, the integrated circuits, the processor facilities, or the like, for dissipating the heat from the objects.

For example, U.S. Pat. No. 5,579,827 to Chung, and U.S. Pat. No. 5,864,464 to Lin disclose two of the typical heat dissipating devices or heat sink assemblies and each comprises a fan device disposed in a fan housing, and the fan housing is then secured onto the objects with four fasteners.

However, it is difficult to snugly fit and to smoothly support the fan device within the fan housing. In addition, additional driving tools are required for rotating or for driving the fasteners, in order to attach or to secure the fan housing onto the objects. Furthermore, the air drawing or propelling effect of the fan device may be limited by the fan housing.

The provision and the attachment of the fan device within the fan housing may increase the inconvenience for assembling the fan device, and may greatly increase the manufacturing cost for the typical heat dissipating devices or the typical heat sink assemblies.

The present invention has arisen to mitigate and/or obviate the afore-described disadvantages of the conventional heat dissipating devices.

SUMMARY OF THE INVENTION

The primary objective of the present invention is to provide a heat dissipating device including a structure for easily attaching or securing to various supporting objects.

In accordance with one aspect of the invention, there is provided a heat dissipating device comprising an object, a housing including a chamber formed therein, a driving device received in the chamber of the housing, and including a spindle extended out of the housing, a fan device attached to the spindle of the driving device, for being rotated and driven by the driving device, a cap, and a locking device for locking the cap to the housing, to attach and to secure the housing to the object.

The housing includes one or more lock notches formed therein, the locking device includes one or more catches extended from the cap, and engageable into the lock notches of the housing, for securing the housing to the object with the catch. The object includes one or more openings formed therein, the catch of the cap is engaged through the openings of the object.

The housing includes a coupler extended therefrom, and a guide arm attached to the coupler of the housing and having a groove formed therein for receiving an electrical cable therein. The coupler of the housing includes a channel formed therein and defined between two side fences, and the guide arm includes a coupler engaged into the channel of the coupler of the housing.

The coupler of the housing includes one or more recesses and/or one or more cavities formed therein, and the guide arm includes one or more projections and/or one or more hooks extended therefrom, for engaging into the recesses and/or the cavities of the coupler of the housing, for attaching the guide arm to the coupler of the housing.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Referring to the drawings, and initially toFIGS. 1–4, a heat dissipating device10in accordance with the present invention comprises a supporting object11, such as a frame11including a net or spider structure or device12formed or provided therein, and defined by ribs13and openings14.

The heat dissipating device10further includes a housing20having a chamber21formed therein and defined by an outer peripheral wall22, for receiving a typical driving means or device30therein. The housing20further includes one or more lock notches23formed therein.

The driving means or device30may be a motor30, or a rotor-and-induction coil mechanism30, which includes a rotor or a spindle31extended out of the housing20(FIGS.2and4–5). A fan device32includes a hub33for attaching or securing to the spindle31of the driving device30, for being rotated or driven by the driving device30.

A cap40includes one or more catches41extended therefrom, for engaging through the openings14of the net or spider structure or device12of the frame11or the supporting object11, and engageable into the corresponding lock notches23of the housing20, for readily and quickly attach and secure the housing20to the supporting object11with the catches41, without additional fasteners and driving tools.

The housing20includes a coupler24extended therefrom, and having a channel25formed therein and defined between two side fences26, and having one or more recesses27and one or more cavities28formed in each of the side fences26, for coupling or for attaching a guide arm50thereto.

As shown inFIGS. 4 and 5, the guide arm50may include an L-shaped structure, and may include a groove51formed therein for receiving one or more electrical wires or cables60therein, and includes a coupler52formed or provided on one end thereof, for coupling or attaching to the coupler24of the housing20.

For example, the coupler52of the guide arm50may be engaged into the channel25of the coupler24, and may include one or more projections53and/or one or more hooks54extended therefrom, for engaging into or with the corresponding recesses27and/or cavities28of the side fences26of the coupler24, and for solidly coupling or attaching the coupler52of the guide arm50to the coupler24of the housing20.

In operation, as shown inFIGS. 1–3, the hub33of the fan device32may be attached or secured to the spindle31of the driving device30, for being rotated or driven by the driving device30. The housing20may then be attached and secured to the supporting object11with the catches41of the cap40, without additional fasteners and driving tools.

The electrical wires or cables60may be received within the groove51of the guide arm50, and may thus be supported by the guide arm50and separated from the fan device32, for preventing the electrical wires or cables60from interfering the operation of the fan device32.

It is to be noted that the catches41are shown to be extended from the cap40for engaging through the openings14of the net or spider structure or device12of the supporting object11, and for engaging into the corresponding lock notches23of the housing20, to attach and secure the housing20to the supporting object11with the catches41.

However, on the contrary, the catches41may also be extended from the housing20for engaging through the openings14of the net or spider structure or device12of the supporting object11, and for engaging into the corresponding lock notches of the cap40, and thus for attaching and securing the housing20to the supporting object11with the catches41. The catches41of the housing20or the cap40and the corresponding lock notches23of the cap40or of the housing20may thus be formed as an anchoring means or a locking means for locking the housing20to the object11.

Accordingly, the heat dissipating device in accordance with the present invention includes a structure for easily attaching or securing to various supporting objects.