Heat conductive pipe

• US 20050257916A1
• Filed: 12/17/2004
• Published: 11/24/2005
• Est. Priority Date: 05/18/2004
• Status: Abandoned Application

• Current Assignee: Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Hon Hai Precision Industry Co., Ltd.
• Inventors: Leu, Charles, Chen, Ga-Lane, Yu, Tai-Cherng
• Application Number:
  US11/014,427
• Publication Number:
  US 20050257916A1
• Time in Patent Office: Days
• US Class Current: 165/104.220
• CPC Class Codes: F28D 15/06 Control arrangements therefor
• CPC Class Codes: H01L 23/427 Cooling by change of state, e.g. use of heat pipes by liquefied gas H01L23/445
• 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

Abstract

A heat conductive pipe (1) includes a heat conductive body (3), a quantity of working fluid (4) contained in the body, and a chamber (610). The body defines a first end and a second end. The chamber is located at one end of the body. The volume of the chamber is changeable under control, wherein the working fluid flows from the first end to the second end when the volume is increasing and the working fluid flows from the second end to the first end when the volume is decreasing.

Claims

1. A heat conductive pipe comprising:

a heat conductive body comprising a first end and a second end;

a quantity of working fluid contained in the body; and

a chamber located at one end of the body, the volume of the chamber being changeable under control;

wherein the working fluid flows from the first end to the second end when the volume is increasing and the working fluid flows from the second end to the first end when the volume is decreasing.

2. The heat conductive pipe as claimed in claim 1, wherein the chamber further comprises at least one inlet and at least one outlet, wherein the chamber communicates with an inside of the body through the inlet and the outlet.

3. The heat conductive pipe as claimed in claim 1, wherein the chamber is defined by a seat member secured on the body, and a first membrane secured on the seat member.

4. The heat conductive pipe as claimed in claim 3, wherein the first membrane can move back and forth under control to cause the volume of the chamber to change such that the working fluid is accelerated to flow back and forth between the first end and second end of the body.

5. The heat conductive pipe as claimed in claim 4, wherein the first membrane is controlled by an actuator.

6. The heat conductive pipe as claimed in claim 3, wherein the first membrane is made from NiFe.

7. The heat conductive pipe as claimed in claim 3, wherein the seat member comprises an upper seat, a lower seat secured on the body, and a second membrane sandwiched between the upper seat and the lower seat.

8. The heat conductive pipe as claimed in claim 7, wherein the chamber further comprises at least one inlet and at least one outlet, the inlet and the outlet defined on the second membrane and the seat member, wherein the chamber communicates with an inside of the body through the inlet and the outlet.

9. The heat conductive pipe as claimed in claim 8, wherein the seat membrane further comprises:

at least one first baffle located before the inlet; and

at least one second baffle located before the outlet,

wherein the first baffle and the second baffle extend from the seat member protecting the inlet and the outlet from being damaged by the impingement of the working fluid.

10. The heat conductive pipe as claimed in claim 3, wherein the seat member comprises an upper seat, a lower seat secured on the body, and a second membrane attached on the seat, the second membrane comprising:

a first part, sandwiched between the upper seat and the lower seat; and

a second part, extending from a side of the lower seat opposing inside of the body.

11. A heat conductive pipe comprising:

a heat conductive body comprising a first end and a second end;

a quantity of working fluid contained in the body; and

a pump located within the body, the pump comprising;

at least one inlet; and

at least one outlet;

wherein the pump is capable of sucking the working fluid thereinto via the inlet to accelerate the working fluid to flow from the first end to the second end, and of discharging the working fluid therein via the outlet to accelerate the working fluid to flow back.

12. The heat conductive pipe as claimed in claim 11, wherein the pump further comprises:

a seat member, by which the pump is secured on the body; and

a first membrane attached on the seat membrane, wherein the seat member and the first membrane forms a chamber receiving the working fluid, and the volume of the chamber is changeable under control to provide a force to flow the working fluid.

13. The heat conductive pipe as claimed in claim 12, wherein the seat member comprises:

an upper seat;

a lower seat attached on the body; and

a second membrane sandwiched between the upper seat and the lower seat,

wherein the inlets and the outlets are defined by the upper seat, the lower seat and the second membrane.

14. A heat conductive pipe comprising:

a heat conductive body comprising a first end and a second end;

a quantity of working fluid contained in the body; and

means for accelerating the working fluid to flow back and forth between the first end and second end of the body.

15. The heat conductive pipe as claimed in claim 14, wherein the means comprises a pump located in the body, the pump comprising:

a chamber located at one end of the body, the volume of the chamber being changeable under control;

at least one inlet; and

at least one outlet, wherein the pump is capable of driving the working fluid to circuit between the first end and the second end in a manner that the working fluid is pumped into the chamber through the inlet when the volume is inflated, and then impelled out through the outlet to flow back when the volume is deflated.

16. The heat conductive pipe as claimed in claim 14, wherein the chamber is defined by a seat member and a first membrane attached on the seat membrane, wherein the first membrane can move back and forth under control to change the volume of the chamber.

17. The heat conductive pipe as claimed in claim 16, wherein the first membrane is made of NiFe, and is controlled to move by an actuator.

18. The heat conductive pipe as claimed in claim 17, wherein the actuator is an electromagnetism switch.