Surge arresting power cable

Patent metadata

Field	Value
Publication number	US-12531173-B2
Application number	US-202217944503-A
Country	US
Kind code	B2
Filing date	Sep 14, 2022
Priority date	Sep 14, 2022
Publication date	Jan 20, 2026
Grant date	Jan 20, 2026

Abstract

Embodiments of the disclosure provide an electrical power surge arresting apparatus. Specifically, the surge arresting apparatus may be implemented within a port of an electrical power cord. In some embodiments, the surge arresting power cable comprises a plurality of conductive plates that may be attached to the hot, neutral, and ground leads of the electrical power cord. A plurality of Metal Oxide Varistors (MOV) may be positioned between the plurality of conductive plates. The plurality of conductive plates may be directly coupled to or comprise a plurality of conductive clips that may be configured to directly couple to a surge protected electronic device. Accordingly, there are no leads between the surge protecting device and the surge protected electronic device. The surge arresting device may further comprise one or more capacitors serving as a low-pass filter.

First claim

Having thus described various embodiments of the invention, what is claimed as new and desired to be protected by Letters Patent includes the following:

1 . A surge arresting apparatus, comprising:
a plurality of metal oxide varistors; a plurality of conductive plates configured to conduct electrical energy between an electric power transmission cable and an electronic device, wherein the plurality of metal oxide varistors and the plurality of conductive plates are provided in a stacked alternating arrangement; a plurality of conductive clips directly coupled to the plurality of conductive plates and directly connected to the electronic device; and one or more capacitors in direct contact with at least one conductive plate of the plurality of conductive plates, wherein the plurality of metal oxide varistors are configured to redirect electrical current to a ground wire when a voltage above a threshold voltage is received at the plurality of conductive plates.

2 . The surge arresting apparatus of claim 1 , wherein the one or more capacitors is a single capacitor disposed between and in direct contact with a first conductive plate of the plurality of conductive plates and a second conductive plate of the plurality of conductive plates.

3 . The surge arresting apparatus of claim 1 , further comprising:
a first metal oxide varistor of the plurality of metal oxide varistors coupled between hot wire and the ground wire; a second metal oxide varistor of the plurality of metal oxide varistors coupled between a neutral wire and the ground wire; and a third metal oxide varistor of the plurality of metal oxide varistors coupled between the hot wire and the neutral wire.

4 . The surge arresting apparatus of claim 1 , further comprising a housing, the housing comprising a port providing the plurality of conductive clips to the electronic device.

5 . The surge arresting apparatus of claim 4 , wherein the housing and the plurality of conductive clips are configured as an International Electrotechnical Commission type A or type B port.

6 . The surge arresting apparatus of claim 1 ,
wherein the electrical current is provided by the plurality of conductive clips when 120 Volts or less is applied to the plurality of conductive plates, and wherein the threshold voltage is greater than 120 Volts.

7 . The surge arresting apparatus of claim 1 ,
wherein the electrical current is provided by the plurality of conductive clips when 220 Volts or less is applied to the plurality of conductive plates, and wherein the threshold voltage is greater than 220 Volts.

8 . The surge arresting apparatus of claim 1 , further comprising:
a first conductive plate of the plurality of conductive plates; a first metal oxide varistor of the plurality of metal oxide varistors disposed directly below and in contact with the first conductive plate; a second conductive plate of the plurality of conductive plates disposed directly below and in contact with the first metal oxide varistor; a second metal oxide varistor of the plurality of metal oxide varistors disposed directly below and in contact with the second conductive plate; a third conductive plate of the plurality of conductive plates disposed directly below and in contact with the second metal oxide varistor; and a third metal oxide varistor disposed directly below and in contact with the third conductive plate, wherein the first metal oxide varistor, the second metal oxide varistor, and the third metal oxide varistor are configured to redirect the electrical current to the ground wire when the voltage is above the threshold voltage.

9 . A surge arresting apparatus, comprising:
an electric power transmission cable for transmitting power to an electronic device, the electric power transmission cable comprising:
a hot wire configured to carry current to the electronic device;
a neutral wire configured to carry current from the electronic device; and
a ground wire configured to carry current when a transient voltage is above a threshold voltage;
a surge arresting device connected in parallel with the electric power transmission cable and configured to redirect current, the surge arresting device comprising:
a plurality of metal oxide varistors;
a plurality of conductive plates configured to conduct electrical energy between the electric power transmission cable and the electronic device; and
one or more capacitors in direct contact with and disposed between at least two conductive plates of the plurality of conductive plates and configured to act as a low-pass filter; and
a plurality of conductive clips directly coupled to the plurality of conductive plates and configured to directly connect to the electronic device, wherein the plurality of metal oxide varistors are configured to redirect electrical current to the ground wire when the transient voltage is above the threshold voltage.

10 . The surge arresting apparatus of claim 9 , further comprising a housing, wherein the surge arresting device is disposed within the housing, and wherein the housing provides the plurality of conductive clips to the electronic device in a configuration, wherein the configuration is one of International Electrotechnical Commission Type A-Type O.

11 . The surge arresting apparatus of claim 10 , wherein the threshold voltage is above 220 Volts.

12 . The surge arresting apparatus of claim 9 , further comprising a first capacitor in direct contact with and disposed between a first conductive plate and a second conductive plate, and a second capacitor in direct contact with and disposed between the second conductive plate and a third conductive plate, wherein the first capacitor and the second capacitor are arranged to form the low-pass filter.

13 . The surge arresting apparatus of claim 9 , further comprising:
a first conductive plate of the plurality of conductive plates attached to the hot wire; a second conductive plate of the plurality of conductive plates attached to the neutral wire; and a third conductive plate of the plurality of conductive plates attached to the ground wire.

14 . The surge arresting apparatus of claim 13 , wherein each metal oxide varistor of the plurality of metal oxide varistors is in contact with at least one surface of the first conductive plate, the second conductive plate, or the third conductive plate.

15 . The surge arresting apparatus of claim 14 , wherein the plurality of metal oxide varistors and the first conductive plate, the second conductive plate, and the third conductive plate are arranged in an alternating stacked arrangement and housed in a port connecting directly to the electronic device.

16 . A surge arresting apparatus, comprising:
an electric power transmission cable for transmitting power to an electronic device, the electric power transmission cable comprising:
a hot wire configured to carry current to the electronic device;
a neutral wire configured to carry current from the electronic device; and
a ground wire configured to carry current when a transient voltage is above a threshold voltage;
a surge arresting device connected to the electric power transmission cable and configured to redirect current, the surge arresting device comprising:
a first metal oxide varistor connected between the hot wire and the ground wire;
a second metal oxide varistor connected between the neutral wire and the ground wire;
a third metal oxide varistor connected between the neutral wire and the hot wire;
a plurality of conductive plates configured to conduct electrical energy between the el

Assignees

• Applied Res Associates Inc

Inventors

• Kleeberg David A
• Dudley Charles
• Lyke Kyle A

Classifications

• H01R13/6666

  with built-in overvoltage protection · CPC title

• H02H9/041

  using a short-circuiting device · CPC title

• H01R24/22

  with additional earth or shield contacts · CPC title

• H01C7/108

  Metal oxide · CPC title

• H02H9/005

  avoiding undesired transient conditions · CPC title