Surge protector, and release mechanism and base thereof

Patent metadata

Field	Value
Publication number	US-10388479-B2
Application number	US-201715634420-A
Country	US
Kind code	B2
Filing date	Jun 27, 2017
Priority date	Jun 27, 2017
Publication date	Aug 20, 2019
Grant date	Aug 20, 2019

Abstract

A release mechanism for surge protectors includes a first electrical connection pin soldered with a varistor's second electrode, a function rotating member sheathed on a fixed column and installed between a varistor and a bridge bracket, an elastic driving device fixed into an internal box body, and a bridge bracket fixed to a second electrical connection pin in the internal box body (2). If the varistor is not released, then the bridge bracket will be passed through a soldering window and soldered with a varistor's first electrode, or else the elastic driving device will drive the function rotating member to rotate around the fixed column. An arc shield plate shields between the bridge bracket and electrode. A failure status indicating area is exposed and a remote linkage rod is triggered.

First claim

What is claimed is:

1. A release mechanism of a surge protector, the release mechanism comprising an internal box body ( 2 ), a function rotating member ( 3 ), an elastic driving device ( 4 ), a first electrical connection pin ( 6 ), a second electrical connection pin ( 7 ) and a bridge bracket ( 8 ) accommodated in a varistor ( 5 ), and the first electrical connection pin ( 6 ) and the second electrical connection pin ( 7 ) being plugged into the internal box body ( 2 ), and a varistor's second electrode ( 5 B) and the first electrical connection pin ( 6 ) being soldered, and the internal box body ( 2 ) having a fixed column ( 2 B), and the function rotating member ( 3 ) having an arc shield plate ( 3 F) and a soldering window ( 3 C), and the function rotating member ( 3 ) being sheathed on the fixed column ( 2 B) and disposed between the varistor ( 5 ) and the bridge bracket ( 8 ), and the elastic driving device ( 4 ) having an end coupled to the function rotating member ( 3 ) and another end fixed to the internal box body ( 2 ), wherein an end of the bridge bracket ( 8 ) is directly fixed and coupled to the second electrical connection pin ( 7 ), such that when the varistor ( 5 ) is situated at a normal status, the function rotating member ( 3 ) is situated at a first position, and another end of the bridge bracket ( 8 ) is passed through the soldering window ( 3 C) and soldered with a varistor's first electrode ( 5 A) at low temperature, and when the varistor ( 5 ) is situated at a release status, the elastic driving device ( 4 ) drives the function rotating member ( 3 ) to rotate around the fixed column ( 2 B), so that when the function rotating member ( 3 ) is rotated to a second position, the arc shield plate ( 3 F) provides a shielding effect between the bridge bracket ( 8 ) and the varistor's first electrode ( 5 A).

2. The release mechanism of claim 1 , wherein the soldering window ( 3 C) has a shear slope ( 3 E) disposed on a side of the soldering window ( 3 C), and the internal box body ( 2 ) has a panel ( 2 A), and the panel ( 2 A) has a varistor's first electrode passing hole ( 2 K) aligned precisely with the soldering window ( 3 C), and the varistor's first electrode passing hole ( 2 K) has a shear plane ( 2 M), so that when the function rotating member ( 3 ) is rotated, the shear slope ( 2 M) and the shear plane ( 3 E) of the soldering window ( 3 C) are moved with respect to each other.

3. The release mechanism of claim 2 , wherein when the function rotating member ( 3 ) is rotated to the second position, an inner wall and the shear plane ( 2 M) of the varistor's first electrode passing hole ( 2 K), the arc shield plate ( 3 F) of the function rotating member ( 3 ), and a surface of the varistor's first electrode ( 5 A) form a closed area.

4. The release mechanism of claim 1 , wherein the release mechanism has an external box body ( 1 ), and the external box body ( 1 ) has a monitoring hole ( 1 A), and the internal box body ( 2 ) has a failure status indicating area ( 2 N), and the function rotating member ( 3 ) has a normal status indicating area ( 3 G), and the color of the normal status indicating area ( 3 G) and the color of the failure status indicating area ( 2 N) are different, and the function rotating member ( 3 ) is situated at the first position, and the normal status indicating area ( 3 G) is exposed from the monitoring hole ( 1 A), and the function rotating member ( 3 ) is rotated to the second position, so that the failure status indicating area ( 2 N) is disposed at and exposed from the monitoring hole ( 1 A).

5. The release mechanism of claim 1 , wherein the elastic driving device ( 4 ) is a spring, and when the varistor ( 5 ) is situated at the normal status, the function rotating member ( 3 ) is situated at the first position, and the spring is situated at a stretched status, and when the varistor ( 5 ) is situated at the release status, the spring is contracted, and the function rotating member ( 3 ) is rotated from the first position to the second position around the fixed column ( 2 B) under the effect of the spring.

6. The release mechanism of claim 5 , wherein both of the function rotating member ( 3 ) and the internal box body ( 2 ) are made of a temperature resisting, insulating, and flame retardant material.

7. A surge protector, comprising: at least one varistor ( 5 ); a base; and at least one release mechanism, including an internal box body ( 2 ), a function rotating member ( 3 ), an elastic driving device ( 4 ), a first electrical connection pin ( 6 ), a second electrical connection pin ( 7 ) and a bridge bracket ( 8 ), accommodated in the varistor ( 5 ), and the first electrical connection pin ( 6 ) and the second electrical connection pin ( 7 ) being plugged in the internal box body ( 2 ), and a varistor's second electrode ( 5 B) and the first electrical connection pin ( 6 ) being soldered, and the internal box body ( 2 ) having a fixed column ( 2 B), and the function rotating member ( 3 ) having an arc shield plate ( 3 F) and a soldering window ( 3 C), and the function rotating member ( 3 ) being sheathed on the fixed column ( 2 B) and disposed between the varistor ( 5 ) and the bridge bracket ( 8 ), and the elastic driving device ( 4 ) having an end coupled to the function rotating member ( 3 ) and another end fixed to the internal box body ( 2 ), wherein an end of the bridge bracket ( 8 ) is directly fixed and coupled to the second electrical connection pin ( 7 ), and when the varistor ( 5 ) is situated at a normal status, the function rotating member ( 3 ) is situated at a first position, and another end of the bridge bracket ( 8 ) is passed through the soldering window ( 3 C) and soldered with a varistor's first electrode ( 5 A) at low temperature, and when the varistor ( 5 ) is situated at a release status, the elastic driving device ( 4 ) drives the function rotating member ( 3 ) to rotate around the fixed column ( 2 B), such that when the function rotating member ( 3 ) is rotated to a second position, the arc shield plate ( 3 F) provides a shielding effect between the bridge bracket ( 8 ) and the varistor's first electrode ( 5 A).

8. The surge protector of claim 7 , wherein the soldering window ( 3 C) has a shear slope ( 3 E) disposed on a side of the soldering window ( 3 C), and the internal box body ( 2 ) has a panel ( 2 A), and the panel ( 2 A) has a varistor's first electrode passing hole ( 2 K) aligned precisely with the soldering window ( 3 C), and the varistor's first electrode passing hole ( 2 K) has a shear plane ( 2 M), so that when the function rotating member ( 3 ) is rotated, the shear slope ( 2 M) and the shear plane ( 3 E) of the soldering window ( 3 C) are moved with respect to each other.

9. The surge protector of claim 8 , wherein when the function rotating member ( 3 ) is rotated to the second position, an inner wall and the shear plane ( 2 M) of the varistor's first electrode passing hole ( 2 K), the arc shield plate ( 3 F) of the function rotating member ( 3 ), and a surface of the varistor's first electrode ( 5 A) form a closed area.

10. The surge protector of claim 7 , wherein the release mechanism has an external box body ( 1 ), and the external box body ( 1 ) has a monitoring hole ( 1 A), and the internal box body ( 2 ) has a failure status indicating area ( 2 N), and the function rotating member ( 3 ) has a normal status indicating area ( 3 G), and the color of the normal status indicating area ( 3 G) and the color of the failure status indicating area ( 2 N) are different, and the function rotating member ( 3 ) is situated at the first position, and the normal status indicating area ( 3 G) is exposed from the monitoring hole ( 1 A), and the function rotating member ( 3 )

Assignees

• Shanghai Chenzhu Instr Co Ltd
• Dinkle Entpr Co Ltd
• Dinkle Electric Machinery China Co Ltd

Inventors

• Zhai Chunpo
• Chen Keqi
• Wu Shang-Tsai

Classifications

• H01H37/76

  Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material · CPC title

• H01H37/08

  Indicators; Distinguishing marks · CPC title

• H01H71/025

  Constructional details of housings or casings not concerning the mounting or assembly of the different internal parts · CPC title

• H01H71/14 Primary

  Electrothermal mechanisms {(combined with a electro-thermal time delay relay H01H61/002)} · CPC title

• H01H71/04

  Means for indicating condition of the switching device {(by means of an auxiliary contact H01H71/46)} · CPC title