Device for Cooling Power Electronics by Means of a Cooling Medium and Method for Producing the Device

• US 20150296660A1
• Filed: 04/13/2015
• Published: 10/15/2015
• Est. Priority Date: 04/14/2014
• Status: Abandoned Application

• Current Assignee: Hella KGaA Hueck & Company
• Original Assignee: Hella KGaA Hueck & Company
• Inventors: Strwer, Frank
• Application Number:
  US14/685,057
• Publication Number:
  US 20150296660A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H05K 7/20927 Liquid coolant without phase change

Abstract

A device for cooling power electronics by means of a cooling medium. The power electronics are arranged in a housing.

Claims

1. A device for cooling power electronics by means of a cooling medium, comprising:

power electronics arranged in a housing,

a housing attachment which is arranged at the housing in such a way that the housing attachment and the housing form a space for receiving the cooling medium,

wherein the housing has at least one bottom part and one top part, wherein both housing parts are designed to be connected by means of a laser welding process,

wherein the housing attachment and the housing are designed to be connected by means of a laser welding process, and

wherein the housing and the housing attachment consist of aluminum.

2. The device according to claim 1, wherein the housing and the housing attachment consist of an aluminum alloy or of 99.5% aluminum.

3. The device according to claim 1 wherein the bottom part and the top part of the housing are deep-drawn, punched or deep-pressed.

4. The device according to claim 1 wherein the bottom part of the housing has a brim and the top part of the housing has a brim, wherein a connection between both housing components takes place via the brims.

5. The device according to claim 1 wherein the housing attachment is deep-drawn, punched or deep-pressed.

6. The device according to claim 1 wherein the housing attachment has a brim, wherein the housing attachment can be connected to the housing by means of the brim.

7. The device according to claim 1 wherein the housing attachment has at least one inlet and at least one outlet for the cooling medium.

8. The device according to claim 7, characterized wherein the inlet and the outlet can be connected by means of a laser welding process to recesses at the housing attachment.

9. A method for producing a device for cooling power electronics, which comprises the following steps:

Connecting by means of a laser welding process a bottom part and a top part of a housing to form a housing, wherein power electronics are arranged in the housing (3), and

Connecting by means of a laser welding process the housing with a housing attachment, wherein the housing attachment and the housing form a space for receiving a cooling medium, and wherein the housing and the housing attachment consist of aluminum.

10. A method for producing a device for cooling power electronics, which comprises the following steps:

Connecting by means of a laser welding process a top part and a housing attachment of a housing to form a housing, wherein the housing attachment and the top part of the housing form a space for receiving a cooling medium, and

Connecting by means of a laser welding process a bottom part and a top part of a housing to form a housing, wherein power electronics are arranged in the housing, and wherein the housing and the housing attachment consist of aluminum.