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System and method for quick and low noise relay switching operation

A low-noise, relay technology, used in relays, electrical switches, circuits, etc., to solve problems such as inaccuracy and inability to ensure performance consistency

Pending Publication Date: 2021-03-30
蒂科能源解决方案股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Since relays are generally inexpensive components—they can range in price from under a dollar to a few dollars—they are often manufactured within imprecise tolerances such that consistent performance cannot be ensured

Method used

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  • System and method for quick and low noise relay switching operation
  • System and method for quick and low noise relay switching operation
  • System and method for quick and low noise relay switching operation

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Embodiment Construction

[0045] In the following, preferred methods and systems according to preferred embodiments of the present invention will be described. These exemplary embodiments are given by way of illustration only, and should not be construed in a limiting manner. In describing the drawings, references already introduced and redundant to previously discussed drawings will be omitted.

[0046] The method used in the framework of the present invention uses a combination of electromechanical and solid-state relays - also known as hybrid relays - to increase the total number of switches by shaping new types of waveforms to drive the relay coils, and to greatly reduce the Noise and switching relays are switched simultaneously while performing switching in the shortest possible time.

[0047] exist image 3 A preferred system for applying the disclosed method is depicted in , showing a hybrid relay 1 made of an electromechanical part 10 and a solid state relay (SSR) part 11 comprising a TRIAC 1...

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Abstract

A hybrid relay (1) comprises an electromechanical part (10) with a movable contact (103), a solid state relay (11) and a control unit (2) for applying a drive signal (S',S") to the drivable coil (101)of the electromechanical part. A method for operating the hybrid relay comprises steps of determining a first minimum voltage (V1) for the drive signal above which the movable contact (103) starts tomove away from an open position (P o ) and a second minimum voltage (V2) for the drive signal above which the movable contact (103) reaches the closed position (P c ), and a step of shaping a waveform (W) for the drive signal comprising a portion (W1) consisting of a vertical segment jumping from zero to the first minimum voltage value, a portion (W2) wherein the voltage gradually increases fromthe first minimum value to the second minimum voltage value, and a portion (W3) consisting of another vertical segment jumping from the second minimum voltage value to an upper voltage boundary (V sup).

Description

technical field [0001] The present invention relates to the field of electrical relays, and in particular to hybrid relays. Background technique [0002] Switching electrical loads up to tens of amperes (eg 5-20A) can be performed using two different relay technologies (electromechanical or semiconductor based). Each of them has pros and cons. [0003] Electromechanical relays are acoustically noisy due to the sound generated by mechanical impact through the metal moving contacts. Usually the higher the power ratio, the noisier the relay. Furthermore, the relay is subject to arcing, so the number of commutations over its lifetime is limited, typically averaging around 10 4 – 50.000 times. But as an advantage, the dissipated energy (electrical and thus thermal) is very small. [0004] In order to reduce the switching noise of such electromechanical relays, US7116541 proposes the use of a drive unit comprising an optocoupler for applying a supply voltage to the drivable c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H9/54H01F7/18H01H47/22H01H47/32
CPCH01F7/18H01F2007/1894H01H9/542H01H47/22H01H47/32H01H47/325
Inventor Y·塞尔瓦吉
Owner 蒂科能源解决方案股份有限公司
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