OPERATOR PANEL CONTROL CIRCUIT HAVING MECHANICAL SOLENOID VALVE INTERLOCKING STRUCTURE

Title:

OPERATOR PANEL CONTROL CIRCUIT HAVING MECHANICAL SOLENOID VALVE INTERLOCKING STRUCTURE

Document Type and Number:

WIPO Patent Application WO/2024/016477

Kind Code:

A1

Abstract:

An operator panel control circuit having a solenoid valve mechanical interlocking structure. The operator panel control circuit comprises: a present-end operator cabin control circuit, a far-end operator cabin control circuit and a middle car; the present-end operator cabin control circuit comprises a present-end operator panel circuit breaker (MCCB1), a present-end key bypass switch (KBS1), a present-end operator panel key limiting switch (KS1), a present-end solenoid valve (Y1), a present-end operator panel direction 0 position limiting switch (S1), a present-end operator panel key relay (KSR1) and a present-end operator cabin activation relay (COR1); the far-end operator cabin control circuit comprises a far-end operator panel circuit breaker (MCCB2), a far-end key bypass switch (KBS2), a far-end operator panel key limiting switch (KS2), a far-end solenoid valve (Y2), a far-end operator panel direction 0 position limiting switch (S2), a far-end operator panel key relay (KSR2) and a far-end operator cabin activation relay (COR2). The operator panel having a built-in solenoid valve structure and paired with a simple and reliable control circuit allows for ensuring an interlocking function of the operator panels at the two ends while reducing circuit design complexity and fault rate, thereby enhancing the reliability of operator panel operations.

Inventors:

ZHAO HONG (CN)
CHEN ZHI (CN)
YONG JIANHUA (CN)
HUANG HAIXIA (CN)

Application Number:

PCT/CN2022/122359

Publication Date:

January 25, 2024

Filing Date:

September 29, 2022

Export Citation:

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Assignee:

CRRC NANJING PUZHEN CO LTD (CN)

International Classes:

B61C17/00; H01H9/26

Foreign References:

CN115123317A	2022-09-30
CN113147800A	2021-07-23
CN103847748A	2014-06-11
CN102372007A	2012-03-14
US20180190443A1	2018-07-05

Attorney, Agent or Firm:

NANJING TONGZE PATENT AGENCY FIRM (LIMITED LIABILITY PARTNER SHIP) (CN)

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