Water-cooling type cooler and inverter having the same

• US 8,339,785 B2
• Filed: 05/17/2010
• Issued: 12/25/2012
• Est. Priority Date: 05/22/2009
• Status: Expired due to Fees

• Current Assignee: LS Industrial Systems Company Limited (Ls Electric Co., Ltd.)
• Original Assignee: LS Industrial Systems Company Limited (Ls Electric Co., Ltd.)
• Inventors: Chang, Seok Chae, Lee, Su Dong
• Primary Examiner(s): THOMPSON, GREGORY D
• Application Number:
  US12/801,006
• Publication Number:
  US 20100296247A1
• Time in Patent Office: 953 Days
• Field of Search: 165/80.4, 361/699
• US Class Current: 361/699
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
• CPC Class Codes: H05K 7/20927 Liquid coolant without phase change

Abstract

A water-cooling type cooler and an inverter employing the same are disclosed. A guide pin for distributing cooling water is formed in the middle of a cooling water flow path having a bent face, to make a flow rate of cooling water at the bent portion of the cooling water flow path uniform to thus improve cooling performance of the water-cooling type cooler. In addition, because the cooling performance of the water-cooling type cooler is improved without extending the cooling pin, an increase in the weight of the water-cooling type cooler can be reduced and a fabrication cost of the water-cooling type cooler can be reduced.

Claims

1. A water-cooling-type cooler comprising:

a cooling water flow path on at least one side of the water-cooling-type cooler, the cooling water flow path including an entrance and an exit for allowing cooling water to flow and one or more bent portions between the entrance and the exit, the one or more bent portions connected to a plurality of linear portions, each of the plurality of linear portions including a plurality of cooling pins for partitioning the plurality of linear portions of the cooling water flow path into a first plurality of channels, the cooling water flow path further including a guide pin for bisecting a width of the one or more bent portions of cooling water flow path into a second plurality of channels,

wherein the guide pin integrally extends from at least one of the plurality of cooling pins,

wherein an end portion of the guide pin intersects a plane that is perpendicular to an end portion of the plurality of cooling pins,

wherein the guide pin is passing through at least one of the one or more bent portions, and

wherein a cross-sectional area at a center of each of the plurality of cooling pins is greater than a cross-sectional area at either end portion of the corresponding cooling pin.

2. The water-cooling-type cooler of claim 1, wherein the end portion of the guide pin extends from the one or more bent portions into at least one of the plurality of linear portions.

3. A water-cooling-type cooler comprising:

a cooling water flow path on at least one side, the cooling water flow path including an entrance and an exit to allow for allowing cooling water to flow,

wherein the cooling water flow path comprises;

a first flow path portion that is linearly connected to the entrance;

a second flow path portion that is bent and connected to the first flow path portion; and

a third flow path portion that is linearly connected to the second flow path portion and partitioned into a first plurality of channels via a plurality of cooling pins formed in the third flow path portion,

wherein a guide pin is termed in the second flow path portion in order to bisect a width of the second flow path portion into a second plurality of channels,

wherein the guide pin integrally extends from at least one of the plurality of cooling pins,

wherein an end portion of the imide pin intersects a plane that is perpendicular to an end portion of the plurality of cooling pins,

wherein the guide pin is passing through at least one of the one or more bent portions, and

wherein a cross-sectional area at a center of each of the plurality of cooling pins is greater than a cross-sectional area at either end portion of the corresponding cooling pin.

4. The water-cooling-type cooler of claim 3, wherein the end portion of the guide pin is contained in the first flow path portion.

5. The water-cooling-type cooler of claim 3, wherein the end portion of each of the plurality of cooling pins is contained in the second flow path portion.

6. The water-cooling-type cooler of claim 3, wherein a cross-sectional area of the first flow path portion is not larger than a cross-sectional area of the second flow path portion or the third flow path portion.

7. An inverter comprising:

an inverter body including electronic components that generate heat; and

a water-cooling-type cooler included in the inverter body and contacting the electronic components in order to cool the generated heat,

wherein the water-cooling type cooler comprises a cooling water flow path including a plurality of linear portions comprising a plurality of cooling pins that partition each of the plurality of linear portions of the cooling water flow path into a first plurality of channels and one or more bent portions comprising a guide pin that bisects a width of the one or more bent portions of the cooling water flow path into a second plurality of channels,

wherein the guide pin integrally extends from at least one of the plurality of cooling pins,

wherein an end portion of the guide pin intersects a plane that is perpendicular to an end portion of the plurality of cooling pins,

wherein the guide pin is passing through at least one of the one or more bent portions, and

wherein a cross-sectional area at a center of each of the plurality of cooling pins is greater than a cross-sectional area at either end portion of the corresponding cooling pin.

8. The inverter of claim 7, wherein the end portion of the guide pin extends from the one or more bent portions into at least one of the plurality of linear portions.

9. An inverter comprising:

an inverter body including electronic components that generate heat; and

a water-cooling-type cooler included in the inverter body and contacting the electronic components in order to cool the generated heat,

wherein the water-cooling-type cooler includes a cooling water flow path formed on at least one side of the water-cooling-type cooler and comprises an entrance and an exit for allowing cooling water to flow, wherein the cooling water flow path comprises;

a first flow path portion that is linearly connected to the entrance;

a second flow path portion that is bent and connected to the first flow path portion; and

a third flow path portion that is linearly connected to the second flow path portion and partitioned into a first plurality of channels via a plurality of cooling pins formed in the third flow path portion,

wherein a guide pin is formed in the second flow path portion in order to bisect a width of the second flow path portion into a second plurality of channels,

wherein the guide pin integrally extends from at least one of the plurality of cooling pins,

wherein an end portion of the guide pin intersects a plane that is perpendicular to an end portion of the plurality of cooling pins,

wherein the guide pin is passing through at least one of the one or more bent portions, and

wherein a cross-sectional area at a center of each of the plurality of cooling pins is greater than a cross-sectional area at either end portion of the corresponding cooling pin.

10. The inverter of claim 9, wherein an end portion of the guide pin is contained in the first flow path portion and an end portion of the plurality of cooling pins is contained in the second flow path portion.

11. The inverter of claim 9, wherein a cross-sectional area of the first flow path portion is not larger than a cross-sectional area of the second flow path portion or the third flow path portion.