Rotor device capable of dissipating heat and resisting foreign objects
a technology of rotating parts and heat dissipation device, which is applied in the direction of magnetic circuit rotating parts, magnetic circuit shape/form/construction, piston pumps, etc., can solve the problems of ineffective dissipation of heat through shield cases, easy entry or fall of foreign objects, etc., and achieve the effect of dissipation of hea
Inactive Publication Date: 2006-07-06
ASIA VITAL COMPONENTS SHENZHEN CO LTD
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Benefits of technology
[0008] An object of the present invention is to provide a rotor device capable of dissipating heat and resisting foreign objects in which the hub holes offset the through holes in the shield case for preventing the foreign objects from entering the rotor device and for the fluid moving in and out for attaining purposed of heat dissipation.
[0010] A rotor device capable of dissipating heat and resisting foreign objects according to the present invention includes a hub and a shield case. The hub has a closed wall and a hub wall connecting with the closed wall and the closed wall at least having a hub hole. The shielding case is mounted in the hub and has an upper wall neighboring the closed wall and a circumferential wall connecting with the upper wall. The upper wall at least has a through hole offsetting the hub hole to allow the fluid passing through the hub hole and the through hole for performing heat dissipation and preventing the foreign objects from falling into the shield case via the hub hole and the through hole.
Problems solved by technology
However, the preceding rotor assembly has a problem that foreign objects easily enter or fall the shield case 11 through the hub hole 123 and the through holes 113 directly to affect internal operation.
Thus, the heat passes through the shield case 11 is incapable of being dissipated effectively.
Method used
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[0016] Referring to FIGS. 2 and 3, the preferred embodiment of a rotor device capable of dissipating heat and resisting foreign objects according to the present invention comprises a hub 21 and a shielding case 22. The hub 21 has a closed wall 211 and a hub wall 212, which connects with the hub 21 and extends downward from the hub 21. The closed wall 211 provides at least a hub hole 213 and there is a projection 214 at the closed wall 211 and the hub wall 212 respectively. The shield case 22 has an upper wall 221 and a circumferential wall 222 extending downward from the upper wall 221 and the upper wall 221 of the shield case 22 provides at least a through hole 223. The shield case 22 is attached to the inner side of the hub 21 in a way of the outer surface of the shield case 22 being covered with the hub 21. A gap 23 is formed between the closed wall 211 of the hub 21 and between the hub wall 212 of the hub 21 and the circumferential wall 222 of the shield case 22 respectively due...
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A rotor device capable of dissipating heat and resisting foreign objects includes a hub and a shield case. The hub has a closed wall and a hub wall connecting with the closed wall and the closed wall at least has a hub hole. The shield case is mounted in the hub and has an upper wall neighboring the closed wall and a circumferential wall connecting with the upper wall. The upper wall at least has a through hole offsetting the hub hole to allow the fluid passing through the hub hole and the through hole for performing heat dissipation and preventing the foreign objects from falling into the shield case via the hub hole and the through hole.
Description
BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention is related to a rotor device capable of dissipating heat and resisting foreign objects and particularly to a rotor assembly, which can remove heat generated from running of the rotor and prevent the foreign objects from falling into the rotor device. [0003] 2. Brief Description of the Related Art [0004] Referring to FIG. 1, a conventional rotor assembly of a fan motor includes a shield case 11 and a hub 12, which is attached to the outer surface of the shield case 11. The shield case 11 has a top wall 111 and a lateral wall 112, which is integral with and extends downward from the top wall 111. The top wall provides a plurality of through holes 113. The hub 12 has a closed wall adjacent to the top wall 111 and a hub wall 122 adjacent to the lateral wall 112 and integral with the closed wall 121. Hub holes 123 are provided to align with the through holes 113 so that passages are formed to allow ...
Claims
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IPC IPC(8): H02K9/06H02K5/10F04B39/06
CPCH02K5/10H02K7/14F04D25/0613F04D25/082F04D29/5806
Inventor LEE, MING-CHE
Owner ASIA VITAL COMPONENTS SHENZHEN CO LTD