IP Library › Granted Patent US 12,069,835
Granted Patent B2
US 12,069,835 · App. 17/919,321 · Granted Aug 20, 2024

Heat sink and converter comprising same

Inventors: Yong Joo Lee (Seoul, KR); Mi Sun Lee (Seoul, KR); Ju Young Jang (Seoul, KR)
Assignee: LG INNOTEK CO., LTD.
H05K7/20336H02M3/00H05K7/20936
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Quick Facts
Patent No.
US 12,069,835
App. No.
17/919,321
Granted
Aug 20, 2024
Kind
B2
Abstract

A heat sink according to one embodiment of the present invention comprises: a main heat sink; a heat pipe mounted in a groove formed on one surface of the main heat sink; a heat dissipation member which is formed above the heat pipe and transfers heat generated from a heat generation component to the heat pipe; and an elastic member which is mounted in a space formed inside the heat dissipation member and applies pressure to the main heat sink.

Claims (58)

1. A heat sink comprising:

a main heat sink;

a heat pipe mounted in a groove formed on one surface of the main heat sink;

a heat dissipation member formed at an upper portion of the heat pipe; and

an elastic member mounted in a space formed inside the heat dissipation member for applying pressure to the main heat sink,

wherein the space inside the heat dissipation member is formed in a groove shape and includes a locking step configured to catch the elastic member.

2. The heat sink according to claim 1 ,

wherein the elastic member comprises:

an elastic unit contracted by a pressure applied when the heat dissipation member and the main heat sink are coupled to each other; and

a pressure pressing unit configured to apply a pressure being condensed according to a contraction of the elastic unit to the main heat sink.

3. The heat sink according to claim 1 ,

wherein a thickness of a portion of the main heat sink to which pressure is applied by the elastic member is thinner than a thickness of other portions.

4. The heat sink according to claim 1 , comprising:

a screw coupling the heat dissipation member and the main heat sink.

5. The heat sink according to claim 1 , comprising:

a thermally conductive pad formed at an upper portion of the heat dissipation member to transfer heat generated in the heat generation component to the heat dissipation member.

6. The heat sink according to claim 1 , comprising:

a heat dissipation fin disposed in other surface of the main heat sink.

7. The heat sink according to claim 6 ,

wherein an extension direction of the heat dissipation fin is the same as an extension direction of the heat pipe.

8. The heat sink according to claim 1 ,

wherein the heat dissipation member transfers heat generated in a heating component to the heat pipe.

9. The heat sink according to claim 8 ,

wherein the heating component comprises switch.

10. The heat sink according to claim 1 ,

wherein the elastic member is formed of a metal material having high thermal conductivity.

11. A converter module comprising:

a printed circuit board on which a plurality of components performing voltage conversion are mounted;

a heat sink that serves as a contact surface in contact with an external device when the converter module is mounted on the external device and radiates heat generated in the component; and

a housing covering outside of the converter module, wherein the heat sink comprises:

a main heat sink;

a heat pipe mounted in a groove formed on one surface of the main heat sink;

a heat dissipation member formed at an upper portion of the heat pipe to transfer heat generated in the component to the heat pipe; and

an elastic member mounted in a space formed inside the heat dissipation member to apply pressure to the main heat sink, and

wherein the main heat sink is in contact with a contact surface of the external device to which the converter module is mounted by the pressure applied from the elastic member, and

wherein the space inside the heat dissipation member is formed in a groove shape and includes a seating portion configured to catch the elastic member.

12. The converter module according to claim 11 ,

wherein at least some components among the plurality of components is disposed at a position corresponding to a lower portion when the converter module is mounted on the external device, and

wherein an extension direction of the heat pipe is disposed in an up and down direction when the converter module is mounted on the external device.

13. The converter module according to claim 11 ,

wherein the elastic member comprises:

an elastic unit contracted by pressure applied when the heat dissipation member and the main heat sink are coupled; and

a pressure pressing unit configured to apply a pressure being condensed according to a contraction of the elastic unit to the main heat sink.

14. The converter module according to claim 11 ,

wherein a thickness of a portion of the main heat sink to which pressure is applied by the elastic member is thinner than a thickness of other portions.

15. The converter module according to claim 11 ,

wherein a thickness of a portion of the main heat sink to which pressure is applied by the elastic member is thinner than a thickness of other portions.

16. The converter module according to claim 11 ,

wherein the converter module comprises a thermally conductive pad formed at an upper portion of the heat dissipation member to transfer heat generated in the heat generation component to the heat dissipation member.

17. The converter module according to claim 11 ,

wherein the converter module comprises a heat dissipation fin disposed in other surface of the main heat sink.

18. The converter module according to claim 17 ,

wherein an extension direction of the heat dissipation fin is the same as an extension direction of the heat pipe.

19. The converter module according to claim 11 ,

wherein the heat dissipation member transfers heat generated in a heating component to the heat pipe.

20. A battery pack comprising:

a battery cell; and

a converter module according to claim 11 and disposed in the battery pack.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 17, 2022
From: LEE, YONG JOO; LEE, MI SUN; JANG, JU YOUNG
To: LG INNOTEK CO., LTD.
Reel/Frame 061438/0042 →
Priority Claims (1)
KR 10-2020-0046857 · Apr 17, 2020 · national
Continuity (1)
Related Publication 20230156964A1 · May 18, 2023