Electric receptacle apparatus with replaceable protection module

• US 8,749,340 B2
• Filed: 09/16/2011
• Issued: 06/10/2014
• Est. Priority Date: 09/17/2010
• Status: Active Grant

• Current Assignee: Powertech Industrial Company Limited
• Original Assignee: Powertech Industrial Company Limited
• Inventors: Hsu, Jung-Hui, Lee, Yu-Lung
• Primary Examiner(s): Vortman, Anatoly
• Application Number:
  US13/234,223
• Publication Number:
  US 20120068807A1
• Time in Patent Office: 998 Days
• Field of Search: 337/14, 337/15, 337/28, 337/31, 337/37, 337/66
• US Class Current: 337/14
• CPC Class Codes: H01H 71/18 with expanding rod, strip, or wire

Abstract

A thermal protection module includes a surge absorber, a switch unit, and a pyrocondensation belt connected to the surge absorber and the switch unit. The switch includes a casing, at least one conductive pin, at least one conductive portion, and a moving part. The conductive portion is disposed on the moving part. The moving part is stuck in the casing movably. The conductive pins are stuck in the casing. The pyrocondensation belt is configured to shrink according to the heat conduction from the surge absorber, so as to change the position of the moving part. The conductive portion is in contact with or separated from the conductive pin according to the position of the moving part.

Claims

1. A thermal protection module, comprising:

a surge absorber;

a switch unit, comprising a casing, a first conductive pin, a moving part, and a first conductive portion, wherein the moving part is mounted in the casing movably, the first conductive pin is mounted in the casing, the first conductive portion is disposed on the moving part, and the first conductive portion is in contact with or separated from the first conductive pin; and

a pyrocondensation belt, connected to the surge absorber and the moving part;

wherein the casing has an opening, and the moving part has a protruding portion, the moving part passes through the opening, and the protruding portion is protruding out from the opening.

2. The thermal protection module as claimed in claim 1, wherein the pyrocondensation belt is configured to shrink according to a heat conduction from the surge absorber, so that the first conductive portion is in contact with or separated from the first conductive pin.

3. The thermal protection module as claimed in claim 2, wherein when the pyrocondensation belt is shrunk to move the moving part, a moving direction of the moving part is the same as a moving direction of the first conductive portion.

4. The thermal protection module as claimed in claim 1, wherein the switch unit further comprises a second conductive pin, a third conductive pin, a fourth conductive pin, and a second conductive portion;

the second conductive pin, the third conductive pin and the fourth conductive pin are mounted in the casing and coupled to the surge absorber;

the second conductive portion is disposed on the moving part;

the third conductive pin is in contact with or separated from the first conductive portion; and

the second conductive portion is in contact with or separated from the second conductive pin and the fourth conductive pin.

5. The thermal protection module as claimed in claim 4, wherein the first conductive portion and the second conductive portion are a plurality of conductive sheets with physical resilience.

6. The thermal protection module as claimed in claim 1, wherein the pyrocondensation belt is a pyrocondensation sleeve.

7. The thermal protection module as claimed in claim 1, wherein the casing is located between the protruding portion and the surge absorber, and the pyrocondensation belt encircles the casing, the protruding portion, and the surge absorber.

8. The thermal protection module as claimed in claim 7, wherein the switch unit further comprises a guide rail disposed on the outside of the casing, and the pyrocondensation belt passes through the guide rail.

9. The thermal protection module as claimed in claim 1, wherein the protruding portion is located between the surge absorber and the casing.

10. The thermal protection module as claimed in claim 9, wherein the protruding portion has a guide rail, and the pyrocondensation belt encircles the surge absorber and passes through the guide rail.

11. The thermal protection module as claimed in claim 1, wherein the moving part has a slot, and the casing has a projection hook disposed therein, the projection hook is accommodated in the slot when the first conductive portion is separated from the first conductive pin.

12. The thermal protection module as claimed in claim 1, wherein the moving part has a projection hook, and the casing has a slot disposed therein, the projection hook is accommodated in the slot when the first conductive portion is separated from the first conductive pin.

13. The thermal protection module as claimed in claim 1, wherein the moving part has a salient point, and the casing has a first stopping hole and a second stopping hole both located in the casing;

when the first conductive portion is in contact with the first conductive pin, the salient point is disposed in the first stopping hole;

when the first conductive portion is separated from the first conductive pin, the salient point is disposed in the second stopping hole.