Overvoltage protection device including multiple varistor chips

A protection device, varistor technology, applied in the direction of overvoltage protection resistors, resistors, non-adjustable metal resistors, etc.

Active Publication Date: 2022-08-09
RIPD研发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in some cases, one or more SPDs 15 may begin to allow leakage currents to be conducted even at voltages below the operating voltage of the SPDs 15
Such a condition may occur if the SPD degrades

Method used

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  • Overvoltage protection device including multiple varistor chips
  • Overvoltage protection device including multiple varistor chips
  • Overvoltage protection device including multiple varistor chips

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Embodiment Construction

[0056] The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which illustrative embodiments of the invention are shown. In the drawings, the relative sizes of regions or features may be exaggerated for clarity. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will inform the art Skilled artisans will fully convey the scope of the invention

[0057] It will be understood that when an element is referred to as being "coupled" or "connected" to another element, it can be directly coupled or connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly coupled" or "directly connected" to another element, there are no intervening elements present. Like numbe...

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Abstract

An overvoltage protection device includes a first electrode member, a second electrode member, and a varistor assembly. The varistor assembly includes: a plurality of varistor wafers, each varistor wafer formed from a varistor material; and at least one conductive interconnect member electrically connecting the varistor wafers in parallel with the first electrode between the member and the second electrode member. The varistor wafer is axially stacked between the first electrode and the second electrode.

Description

[0001] Field of Invention [0002] The present invention relates to circuit protection devices and, more particularly, to overvoltage protection devices and methods. Background technique [0003] Frequently, excessive voltages or currents are applied across service lines that deliver power to residential and commercial and institutional facilities. For example, such overvoltage or current spikes (transient overvoltages and inrush currents) may be caused by lightning strikes. In telecommunications distribution centers, hospitals, and other facilities, the above events can be of particular concern because equipment damage and resulting downtime caused by overvoltage and / or current surges can be very expensive. [0004] Typically, a surge protection device (SPD) can be used to protect sensitive electronic equipment from transient overvoltages and surge currents. For example, briefly refer to FIG. 1, which is a system for protecting conventional overvoltage and surge protection....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01C7/12
CPCH01C7/126H01C7/12H01C7/001H01C1/14H01C17/00H01C7/102H01C7/123
Inventor 泰恩·塔瓦卡莎莎·鲁斯蒂亚爱丽克斯·克鲁索格鲁乔治·佩珀斯福蒂斯·西帕帕斯扎菲尔斯·G·波利蒂斯
Owner RIPD研发有限公司
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