HEAT SINK FOR A SHAFT-TYPE LINEAR MOTOR

• US 20080149303A1
• Filed: 12/25/2006
• Published: 06/26/2008
• Est. Priority Date: 12/25/2006
• Status: Abandoned Application

• Current Assignee: Hiwin Mikrosystem Corp.
• Original Assignee: Hiwin Mikrosystem Corp.
• Inventors: CHANG, CHIA-MING, Huang, Lieh-Feng, Tai, Fang-Fang
• Application Number:
  US11/616,011
• Publication Number:
  US 20080149303A1
• Time in Patent Office: Days
• US Class Current: 165/80.2
• CPC Class Codes: F28D 15/00 Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies F28D17/00, F28D19/00, F28D20/00 take precedence
• CPC Class Codes: F28D 2021/0029 Heat sinks
• CPC Class Codes: F28F 3/02 Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations F28F3/08 takes precedence
• CPC Class Codes: F28F 3/06 the means being attachable to the element
• CPC Class Codes: F28F 3/12 Elements constructed in the shape of a hollow panel, e.g. with channels F28D1/02, F28D1/03 take precedence
• CPC Class Codes: H02K 41/03 Synchronous motors; Motors moving step by step; Reluctance motors H02K41/035 takes precedence
• CPC Class Codes: H02K 5/20 with channels or ducts for flow of cooling medium
• CPC Class Codes: H02K 9/227 Heat sinks

Abstract

A heat sink for a shaft-type linear motor is detachably positioned on a mover and is interiorly defined with a space. A plurality of coolant-receiving channels is formed in a wall between the space and an outer surface of the heat sink, and each of the coolant-receiving channels includes at least one inlet and one outlet. A plurality of concave and convex radiation fins is formed on an outer surface of the mover. Such an arrangement is suitable for modular production, so as to facilitate replacement and design of the product. Further, the radiation fins cooperate with the liquid cooling effect to enable the motor to produce the maximum pushing force.

Claims

1. A heat sink for a shaft-type linear motor being detachably positioned on a mover and interiorly defined with a space, the space formed correspondingly to the shape of the mover and being provided for accommodation of the mover, a plurality of coolant-receiving channels formed in a wall between the space and an outer surface of the heat sink, each of the coolant-receiving channels includes at least one inlet and one outlet, so that pressurized coolant liquid keeps flowing within the coolant-receiving channels.

2. The heat sink for a shaft-type linear motor as claimed in claim 1, wherein a plurality of concave and convex radiation fins is formed on an outer surface of the mover.

3. The heat sink for a shaft-type linear motor as claimed in claim 2, wherein the heat sink is fixed on the mover by screws.

4. The heat sink for a shaft-type linear motor as claimed in claim 1, wherein the coolant liquid is water, cooling oil, or chemical coolant.