WO2017143808A1 - 一种动车组安全电路联锁控制装置 - Google Patents

一种动车组安全电路联锁控制装置 Download PDF

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Publication number
WO2017143808A1
WO2017143808A1 PCT/CN2016/106217 CN2016106217W WO2017143808A1 WO 2017143808 A1 WO2017143808 A1 WO 2017143808A1 CN 2016106217 W CN2016106217 W CN 2016106217W WO 2017143808 A1 WO2017143808 A1 WO 2017143808A1
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WIPO (PCT)
Prior art keywords
control
branch
protective earthing
pantograph
earthing switch
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PCT/CN2016/106217
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English (en)
French (fr)
Inventor
牛步钊
焦京海
房新凯
吴冬华
陶桂东
邓桂美
Original Assignee
中车青岛四方机车车辆股份有限公司
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Application filed by 中车青岛四方机车车辆股份有限公司 filed Critical 中车青岛四方机车车辆股份有限公司
Priority to EP16891256.6A priority Critical patent/EP3299209B1/en
Priority to US15/738,574 priority patent/US10192694B2/en
Priority to JP2018527206A priority patent/JP2018535642A/ja
Publication of WO2017143808A1 publication Critical patent/WO2017143808A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
    • H01H9/285—Locking mechanisms incorporated in the switch assembly and operable by a key or a special tool

Definitions

  • the invention relates to the technical field of EMU safety control, in particular to an EMU safety circuit interlocking control device.
  • the pantograph When the EMU is in normal operation, the pantograph is in contact with the contact net, and the EMU is supplied with high voltage by the contact net.
  • the high-voltage equipment on the EMU is inspected and maintained, the high-voltage circuit must be in a non-powered state to ensure the safety of the operator and related equipment.
  • EMU safety circuit interlocking control device which can ensure the safety of the operator and related equipment when the high voltage equipment on the EMU is inspected and maintained.
  • the present invention provides an EMU safety circuit interlocking control device, which can ensure the safety of operators and related equipment when the high-voltage equipment on the EMU is inspected and maintained.
  • Embodiments of the present invention provide an EMU safety circuit interlocking control device, including: a protection grounding switch control branch;
  • the protective earthing switch control branch includes: a pantograph lifted airway cutoff valve connected in series, a protective earthing switch disconnecting the airway cutoff valve, and a protective earthing switch disconnecting the electromagnetic valve;
  • the operation protection grounding switch When the EMU high-voltage equipment is inspected and maintained or the external power supply is supplied, the operation protection grounding switch is closed, and the pantograph lift air circuit cut-off valve cock and the protective earthing switch are turned off to open the air circuit cut-off valve cock to open the key box cover.
  • the protective earthing switch control branch is disconnected, and the protective earthing switch in the protection grounding switch control branch is disconnected from the electromagnetic valve to lose power, and the protective earthing switch is disconnected from the electromagnetic valve to cause power protection.
  • the grounding switch remains closed;
  • the key box cover is mechanically locked by the pantograph lift air passage shutoff valve and the protective earthing switch to open the air passage shutoff valve.
  • the method further includes: unlocking the control branch;
  • the unlocking control branch includes: an unlocking button connected in series, a protective grounding switch auxiliary contact, and a coil of the unlocking relay;
  • the unlock button is located on the key box
  • the protective earthing switch is operated to be closed, and the unlocking button is pressed to power the coil of the unlocking relay to release the key.
  • the method further includes: receiving, by the pantograph, the first branch;
  • the first branch of the pantograph interlock control comprises: a protective earthing switch state normally closed contact and a rising bow relay coil connected in series;
  • the method further includes: controlling the second branch by the pantograph interlock;
  • the second branch of the pantograph interlock control comprises: a normally open contact of an emergency power-off relay connected in series, a normally open contact of a lift relay, and a lift solenoid valve;
  • the emergency power-off relay When the emergency power-off relay loses power, the emergency power-off relay normally opens and closes;
  • the lift bow relay coil When the pantograph lift condition is satisfied, the lift bow relay coil is energized, the normally open contact of the lift bow relay is closed, the lift bow solenoid valve is energized, and the pantograph is raised.
  • the method further includes: an emergency power-off control first branch and an emergency disconnect control second branch;
  • the first branch of the emergency power-off control comprises: an emergency power-off button connected in series, a normally-open contact of an emergency power-off condition relay, and an emergency power-off relay coil;
  • the second branch of the emergency power-off control comprises: an external power state state relay normally closed contact and a emergency power-off condition relay coil connected in series;
  • the emergency power-off control second branch is connected in series with the emergency power-off button.
  • the external power state relay control branch is further included;
  • the external power state relay control branch includes: an external power plug connected in series and an external power state relay coil;
  • the external power plug When the external power source is connected, the external power plug is closed, and the external power state relay coil is energized.
  • the protective earthing switch control branch further comprises: a protective earthing open control circuit breaker;
  • the protective earthing disconnect control circuit breaker is connected in series in the protective earthing switch control branch.
  • the unlocking control branch further comprises: an unlocking control circuit breaker;
  • the unlocking control circuit breaker is connected in series in the unlocking control branch.
  • the pantograph interlock control branch further comprises: a bow control breaker;
  • the lift control breaker is connected in series in the pantograph interlock control branch.
  • the emergency power-off control first branch includes: an emergency power-off control circuit breaker;
  • the emergency power-off control circuit breaker is connected in series in the first branch of the emergency power-off control.
  • the present invention has at least the following advantages:
  • the train is provided with a protective earthing switch.
  • the protective earthing switch needs to be closed, so that when the pantograph is raised and the high-voltage circuit is energized, the protective earthing switch provides a low-impedance current loop for the high-voltage circuit, thereby protecting the maintenance personnel. Personal safety.
  • Embodiment 1 is a schematic diagram of Embodiment 1 of an EMU safety circuit interlocking control device provided by the present invention
  • FIG. 2 is a schematic view of a key safety interlocking box provided by the present invention.
  • Embodiment 2 is a schematic diagram of Embodiment 2 of an EMU safety circuit interlocking control device provided by the present invention
  • Embodiment 3 is a schematic diagram of Embodiment 3 of an EMU safety circuit interlocking control device provided by the present invention.
  • FIG. 5 is a schematic diagram of Embodiment 4 of an EMU safety circuit interlocking control device provided by the present invention.
  • FIG. 6 is a schematic diagram of Embodiment 5 of an EMU safety circuit interlocking control device provided by the present invention.
  • FIG. 1 is a schematic diagram of a first embodiment of an EMU safety circuit interlocking control device according to the present invention.
  • the EMU safety circuit interlocking control device includes: a protection grounding switch control branch;
  • the protective earthing switch control branch includes: a pantograph lifted airway cutoff valve J1 connected in series, a protective earthing switch disconnecting airway shutoff valve J2, and a protective earthing switch disconnecting electromagnetic valve Y1;
  • the operation protection grounding switch When the EMU high-voltage equipment is inspected and maintained or the external power supply is supplied, the operation protection grounding switch is closed, and the pantograph lift air passage cut-off valve J1 cock and the protective earthing switch are disconnected to open the air passage cut-off valve J2 cock to open the key box.
  • the cover is closed; at the same time, the protective earthing switch control branch is disconnected, and the protective earthing switch in the protection grounding switch control branch is disconnected from the electromagnetic valve Y1, and the protective earthing switch is disconnected from the electromagnetic valve Y1. Electric to ensure that the protective earthing switch cannot be disconnected; even if the protective earthing switch remains closed.
  • the key box is located in the auxiliary air compressor
  • the auxiliary air compressor is located in the under-vehicle compartment of the pantograph.
  • the key box cover is mechanically locked by the pantograph lift air passage shutoff valve J1 and the protective earthing switch disconnecting air passage shutoff valve J2.
  • the train is provided with a protective earthing switch.
  • the protective earthing switch needs to be closed, so that when the pantograph is raised and the high-voltage circuit is energized, the protective earthing switch provides a low-impedance current loop for the high-voltage circuit, thereby protecting the maintenance personnel. Personal safety.
  • the process of taking out the high voltage equipment box key or the external power supply box key is as follows:
  • Step 1 Open the cover of the key box in the auxiliary air compressor
  • Step 2 Unlock the No. 1 key and the No. 2 key in Figure 2;
  • Step 3 Insert the No. 1 key and the No. 2 key into the keyhole corresponding to the No. 1 key and the No. 2 key in Figure 2, unlock the No. 3 key and the No. 4 key, and open the high-voltage equipment box with the No. 3 key and No. 4 key.
  • the external power box can be opened with the No. 5 key, and the key cannot be taken out before the cabinet is repaired;
  • Step 4 When the No. 3 key, the No. 4 key, and the No. 5 key are not inserted into the keyhole, the No. 1 key and the No. 2 key cannot be taken out.
  • protection grounding switch control branch as shown in FIG. 1 further includes: a protective earthing disconnection control circuit breaker S1;
  • the protective earthing disconnect control circuit breaker S1 is connected in series in the protective earthing switch control branch.
  • FIG. 3 it is a schematic diagram of Embodiment 2 of an EMU safety circuit interlocking control device provided by the present invention.
  • the EMU safety circuit interlocking control device provided in this embodiment further includes: an unlocking control branch;
  • the unlocking control branch includes: an unlocking button Q1 connected in series, an auxiliary contact A for protecting the grounding switch, and a coil K of the unlocking relay;
  • the unlock button Q1 is located on the key box
  • the protective earthing switch is operated to be closed, and the unlocking button Q1 is pressed to electrify the coil K of the unlocking relay to release the key.
  • the circuit provided in Figure 3 realizes the removal of the interlocking of the No. 1 and No. 2 keys and the protective earthing switch. Only the protective earthing switch is closed, the unlocking control branch of Figure 2 can be energized, and the No. 1 key and the No. 2 key are Can be taken out. That is, when the protective earthing switch is not closed, the number 1 key and the number 2 key cannot be taken out. This achieves an interlock that unlocks and protects the grounding switch.
  • unlocking control branch in this embodiment further includes: an unlocking control circuit breaker S2;
  • the unlocking control circuit breaker S2 is connected in series in the unlocking control branch.
  • FIG. 4 it is a schematic diagram of Embodiment 3 of an EMU safety circuit interlocking control device provided by the present invention.
  • the EMU safety circuit interlocking control device provided in this embodiment further includes: a pantograph interlocking control first branch;
  • the first branch of the pantograph interlock control comprises: a protective earthing switch state normally closed contact D and a rising bow relay coil C connected in series; in this embodiment, the normally open contact of the lift bow relay coil and the lift bow relay Both are indicated by C.
  • the protective earthing switch state is normally closed, the contact D is disconnected, and the lifting relay coil C is de-energized, and the pantograph cannot be raised.
  • pantograph interlock control also includes: a second branch of the pantograph interlock control
  • the second branch of the pantograph interlock control comprises: a normally-opened contact V of the emergency power-off relay connected in series, a normally-open contact C of the lift-bone relay, and a lift solenoid valve Y2;
  • the emergency power-off relay When the emergency power-off relay loses power, the emergency power-off relay normally opens the contact V to be disconnected;
  • the lift bow relay coil C When the pantograph lift condition is satisfied, the lift bow relay coil C is energized, the normally open contact C of the lift bow relay is closed, the lift bow solenoid valve Y2 is energized, and the pantograph is raised.
  • the protective earthing switch When the high-voltage equipment is inspected and maintained, the protective earthing switch must be operated first. When the protective earthing switch is closed, the protective earthing switch state is normally closed. The contact D is disconnected, so that the lift-off relay cannot be powered, so that the pantograph cannot rise. .
  • pantograph interlock control branch further includes: a bow control breaker S3; the boom control breaker S3 is connected in series in the pantograph interlock control branch.
  • X in FIG. 4 is the other boom control condition of the train.
  • the pantograph is not cut, the main breaker of the vehicle is not closed, and the like.
  • FIG. 5 it is a schematic diagram of Embodiment 4 of an EMU safety circuit interlocking control device provided by the present invention.
  • the EMU safety circuit interlocking control device provided in this embodiment further includes: an emergency power-off control first branch and an emergency disconnect control second branch;
  • the emergency power-off control first branch includes: an emergency power-off button Q2 connected in series, a normally-off contact E of an emergency power-off condition relay, and an emergency power-off relay coil V;
  • the second branch of the emergency power-off control includes: an external power supply state relay normally closed contact F and an emergency power-off condition relay coil E connected in series;
  • the emergency power-off control second branch is connected in series with the emergency power-off button Q2.
  • the first branch of the emergency power failure control further includes: an emergency power off control circuit breaker S4 connected in series. As shown in FIG. 5, S4 and Q2 are connected in series.
  • FIG. 6 is a schematic diagram of Embodiment 5 of an EMU safety circuit interlocking control device provided by the present invention.
  • the EMU safety circuit interlocking control device provided by the embodiment further includes an external power supply state relay control branch;
  • the external power state relay control branch includes: an external power plug 50 connected in series and an external power state relay coil 51;
  • the external power plug 50 When the external power source is connected, the external power plug 50 is closed, and the external power state relay coil 51 is energized.
  • the external power status relay coil 51 When the external power plug is connected, the external power status relay coil 51 is energized, the contact F is in the off state, the emergency power off condition relay coil E is de-energized after the F is disconnected, and the emergency power off condition relay normally open contact E is closed.
  • the state is changed to the off state, so that the emergency power-off relay coil V is de-energized, and the emergency power-off relay is de-energized, and the contact V is disconnected from the lift solenoid control circuit, and the pantograph cannot be raised.
  • the external power state relay control branch further includes an external power supply control circuit breaker S5 connected in series.
  • Figure 4-6 shows the safety interlock of the lift control loop.
  • circuit breakers S1-S5 in the above figures all play a protective role and have no relationship with the control logic of the circuit.
  • each control branch provided by the above embodiment is powered by a DC 110V power supply on the train, that is, the two ends of the protection ground switch control branch are respectively connected to DC110V+ And DC110V-.
  • the two ends of the unlocking control branch are respectively connected with DC110V+ and DC110V-.
  • the two ends of the pantograph interlock control branch are respectively connected with DC110V+ and DC110V-.
  • the first branch of the emergency power-off control is connected to DC110V+ and DC110V- respectively.
  • the emergency disconnection control is connected to DC110V+ and DC110V- at both ends of the second branch.
  • the external power supply status relay control branch is connected to DC110V+ and DC110V- respectively.

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Abstract

一种动车组安全电路联锁控制装置，包括保护接地开关控制支路，该保护接地开关控制支路包括：串联连接的受电弓升弓气路截断阀（J1）、保护接地开关断开气路截断阀（J2）和保护接地开关断开电磁阀（Y1）；当动车组高压设备检修维护或外接电源供电时，操作保护接地开关闭合，旋转受电弓升弓气路截断阀（J1）旋塞和保护接地开关断开气路截断阀（J2）旋塞，以打开钥匙箱箱盖；同时该保护接地开关控制支路断开，串联在保护接地开关控制支路中的保护接地开关断开电磁阀（Y1）失电，保护接地开关断开电磁阀（Y1）失电以使保护接地开关保持闭合；钥匙箱箱盖通过受电弓升弓气路截断阀（J1）和保护接地开关断开气路截断阀（J2）机械锁定。高压设备检修维护或外接电源供电时，保护接地开关需要处于闭合状态，保护检修人员的人身安全。

Description

一种动车组安全电路联锁控制装置
本申请要求于2016年02月26日提交中国专利局、申请号为201610108643.7、发明名称为“一种动车组安全电路联锁控制装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及动车组安全控制技术领域，尤其涉及一种动车组安全电路联锁控制装置。
背景技术
动车组正常运行时，受电弓与接触网接触，由接触网对动车组进行高压供电。但是，当动车组上的高压设备进行检修维护时，高压回路必须处于无电状态才能保证操作人员以及相关设备的安全。
因此，本领域技术人员需要提供一种动车组安全电路联锁控制装置，能够在动车组上的高压设备进行检修维护时，保证操作人员以及相关设备的安全。
发明内容
为了解决现有技术中存在的以上技术问题，本发明提供一种动车组安全电路联锁控制装置，能够在动车组上的高压设备进行检修维护时，保证操作人员以及相关设备的安全。
本发明实施例提供一种动车组安全电路联锁控制装置，包括：保护接地开关控制支路；
所述保护接地开关控制支路包括：串联连接的受电弓升弓气路截断阀、保护接地开关断开气路截断阀和保护接地开关断开电磁阀；
当动车组高压设备检修维护或外接电源供电时，操作保护接地开关闭合，旋转所述受电弓升弓气路截断阀旋塞和保护接地开关断开气路截断阀旋塞，以打开钥匙箱箱盖；同时该保护接地开关控制支路断开，串联在所述保护接地开关控制支路中的所述保护接地开关断开电磁阀失电，所述保护接地开关断开电磁阀失电以使保护接地开关保持闭合；
所述钥匙箱箱盖通过所述受电弓升弓气路截断阀和所述保护接地开关断开气路截断阀机械锁定。
优选地，还包括：开锁控制支路；
所述开锁控制支路包括：串联连接的开锁按钮、保护接地开关辅助触点和开锁继电器的线圈；
所述开锁按钮位于所述钥匙箱上；
所述保护接地开关闭合时，所述保护接地开关辅助触点闭合；
操作所述保护接地开关闭合，按下所述开锁按钮，使所述开锁继电器的线圈得电，释放钥匙。
优选地，还包括：受电弓联锁控制第一支路；
所述受电弓联锁控制第一支路包括：串联连接的保护接地开关状态常闭触点和升弓继电器线圈；
当所述保护接地开关闭合时，所述保护接地开关状态常闭触点断开，升弓继电器线圈失电，受电弓不能升起。
优选地，还包括：受电弓联锁控制第二支路；
所述受电弓联锁控制第二支路包括：串联连接的紧急断电继电器常开触点、升弓继电器的常开触点和升弓电磁阀；
当紧急断电继电器失电时，所述紧急断电继电器常开触点断开；
当受电弓升弓条件满足时，所述升弓继电器线圈得电，所述升弓继电器的常开触点闭合，所述升弓电磁阀得电，受电弓升起。
优选地，还包括：紧急断电控制第一支路和紧急断开控制第二支路；
所述紧急断电控制第一支路包括：串联连接的紧急断电按钮、紧急断电条件继电器常开触点、紧急断电继电器线圈；
所述紧急断电控制第二支路包括：串联连接的外接电源状态继电器常闭触点和紧急断电条件继电器线圈；
所述紧急断电控制第二支路与所述紧急断电按钮串联连接。
优选地，还包括外接电源状态继电器控制支路；
所述外接电源状态继电器控制支路包括：串联连接的外接电源插头和外接电源状态继电器线圈；
当外接电源接入时，所述外接电源插头闭合，所述外接电源状态继电器线圈得电。
优选地，所述保护接地开关控制支路还包括：保护接地断开控制断路器；
所述保护接地断开控制断路器串联在所述保护接地开关控制支路中。
优选地，所述开锁控制支路还包括：开锁控制断路器；
所述开锁控制断路器串联在开锁控制支路中。
优选地，所述受电弓联锁控制支路还包括：升弓控制断路器；
所述升弓控制断路器串联在所述受电弓联锁控制支路中。
优选地，所述紧急断电控制第一支路包括：紧急断电控制断路器；
所述紧急断电控制断路器串联在所述紧急断电控制第一支路中。
与现有技术相比，本发明至少具有以下优点：
当动车组的高压设备进行检修维护或外接电源供电时，需要保证高压回路处于无电状态，即保证受电弓不能升弓。为了防止受电弓异常升弓，列车设置了保护接地开关。当高压设备进行检修维护或外接电源供电时，保护接地开关需要处于闭合状态，这样当受电弓升弓使高压回路通电时，保护接地开关为高压回路提供了低阻抗电流回路，从而保护检修人员的人身安全。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请中记载的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。
图1为本发明提供的动车组安全电路联锁控制装置实施例一示意图；
图2为本发明提供的钥匙安全联锁盒示意图；
图3为本发明提供的动车组安全电路联锁控制装置实施例二示意图；
图4为本发明提供的动车组安全电路联锁控制装置实施例三示意图；
图5为本发明提供的动车组安全电路联锁控制装置实施例四示意图；
图6为本发明提供的动车组安全电路联锁控制装置实施例五示意图。
具体实施方式
为了使本技术领域的人员更好地理解本发明方案，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述， 显然，所描述的实施例仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
参见图1，该图为本发明提供的一种动车组安全电路联锁控制装置实施例一示意图。
本实施例提供的动车组安全电路联锁控制装置，包括：保护接地开关控制支路；
所述保护接地开关控制支路包括：串联连接的受电弓升弓气路截断阀J1、保护接地开关断开气路截断阀J2和保护接地开关断开电磁阀Y1；
当动车组高压设备检修维护或外接电源供电时，操作保护接地开关闭合，旋转所述受电弓升弓气路截断阀J1旋塞和保护接地开关断开气路截断阀J2旋塞，以打开钥匙箱箱盖；同时该保护接地开关控制支路断开，串联在所述保护接地开关控制支路中的所述保护接地开关断开电磁阀Y1失电，所述保护接地开关断开电磁阀Y1失电以保证保护接地开关无法断开；即使保护接地开关保持闭合状态。
所述钥匙箱位于辅助空压机内；
其中辅助空压机位于受电弓车厢的车下设备舱。
所述钥匙箱箱盖通过所述受电弓升弓气路截断阀J1和所述保护接地开关断开气路截断阀J2机械锁定。
具体可以参见钥匙联锁盒示意图，如图2所示。
需要说明的是，当动车组的高压设备进行检修维护或外接电源供电时，需要保证高压回路处于无电状态，即保证受电弓不能升弓。为了防止受电弓异常升弓，列车设置了保护接地开关。当高压设备进行检修维护或外接电源供电时，保护接地开关需要处于闭合状态，这样当受电弓升弓使高压回路通电时，保护接地开关为高压回路提供了低阻抗电流回路，从而保护检修人员的人身安全。
需要取出图2所示的钥匙联锁盒中的高压设备箱钥匙或外接电源箱钥匙。可以理解的是，
取出高压设备箱钥匙或外接电源箱钥匙的流程如下：
第一步：打开辅助空压机内钥匙箱的箱盖；
第二步：解锁图2中的1号钥匙和2号钥匙；
第三步：将1号钥匙和2号钥匙插入图2中1号钥匙和2号钥匙对应的钥匙孔,解锁3号钥匙和4号钥匙,用3号钥匙和4号钥匙可以打开高压设备箱,用5号钥匙可以打开外接电源箱，箱体检修完成前钥匙不能拿出；
第四步：在3号钥匙、4号钥匙、5号钥匙未插入钥匙孔时，1号钥匙和2号钥匙也无法拿出。
需要说明的是，无论是打开高压设备箱还是外接电源箱，均需要先将1号钥匙和2号钥匙从辅助空压机内钥匙箱处取出，插入图2中对应的钥匙孔。
需要说明的是，如图1所示所述保护接地开关控制支路还包括：保护接地断开控制断路器S1；
所述保护接地断开控制断路器S1串联在所述保护接地开关控制支路中。
参见图3，该图为本发明提供的动车组安全电路联锁控制装置实施例二示意图。
本实施例提供的动车组安全电路联锁控制装置，还包括：开锁控制支路；
所述开锁控制支路包括：串联连接的开锁按钮Q1、保护接地开关辅助触点A和开锁继电器的线圈K；
所述开锁按钮Q1位于所述钥匙箱上；
所述保护接地开关闭合时，所述保护接地开关辅助触点A闭合；
操作所述保护接地开关闭合，按下所述开锁按钮Q1，使所述开锁继电器的线圈K得电，释放钥匙。
正常状态下，1号钥匙和2号钥匙在钥匙箱内处于锁定状态，当操作人员操作钥匙箱上的开锁按钮Q1时，开锁继电器的线圈K得电，释放1号和2号钥匙。
图3提供的电路实现了取出1号和2号钥匙与保护接地开关闭合联锁，只有保护接地开关闭合的前提下，图2的开锁控制支路才可以通电，1号钥匙和2号钥匙才可以取出。即，当保护接地开关不闭合时，无法取出1号钥匙和2号钥匙。这样实现了开锁和保护接地开关的联锁。
另外，本实施例中所述开锁控制支路还包括：开锁控制断路器S2；
所述开锁控制断路器S2串联在开锁控制支路中。
参见图4，该图为本发明提供的动车组安全电路联锁控制装置实施例三示意图。
本实施例提供的动车组安全电路联锁控制装置，还包括：受电弓联锁控制第一支路；
所述受电弓联锁控制第一支路包括：串联连接的保护接地开关状态常闭触点D和升弓继电器线圈C；本实施例中升弓继电器线圈和升弓继电器的常开触点均用C表示。
当所述保护接地开关闭合时，所述保护接地开关状态常闭触点D断开，升弓继电器线圈C失电，受电弓不能升起。
另外，还包括：受电弓联锁控制第二支路；
所述受电弓联锁控制第二支路包括：串联连接的紧急断电继电器常开触点V、升弓继电器的常开触点C和升弓电磁阀Y2；
当紧急断电继电器失电时，所述紧急断电继电器常开触点V断开；
当受电弓升弓条件满足时，所述升弓继电器线圈C得电，所述升弓继电器的常开触点C闭合，所述升弓电磁阀Y2得电，受电弓升起。
当高压设备检修维护时，需要先操作保护接地开关闭合，当保护接地开关闭合时，保护接地开关状态常闭触点D断开，使升弓继电器不能得电，从而使受电弓不能升起。
另外，所述受电弓联锁控制支路还包括：升弓控制断路器S3；所述升弓控制断路器S3串联在所述受电弓联锁控制支路中。
需要说明的是，图4中的X为列车其他升弓控制条件。例如，受电弓未被切除，车辆主断路器未闭合等。
参见图5，该图为本发明提供的动车组安全电路联锁控制装置实施例四示意图。
本实施例提供的动车组安全电路联锁控制装置，还包括：紧急断电控制第一支路和紧急断开控制第二支路；
所述紧急断电控制第一支路包括：串联连接的紧急断电按钮Q2、紧急断电条件继电器常开触点E、紧急断电继电器线圈V；
需要说明的是，图4中的紧急断电继电器常开触点和图5中的紧急断电继电器线圈均用V表示。
所述紧急断电控制第二支路包括：串联连接的外接电源状态继电器常闭触点F和紧急断电条件继电器线圈E；
所述紧急断电控制第二支路与所述紧急断电按钮Q2串联连接。
需要说明的是，紧急断电控制第一支路还包括：串联连接的紧急断电控制断路器S4。如图5所示，S4与Q2串联连接。
参见图6，该图为本发明提供的动车组安全电路联锁控制装置实施例五示意图。
本实施例提供的动车组安全电路联锁控制装置，还包括外接电源状态继电器控制支路；
所述外接电源状态继电器控制支路包括：串联连接的外接电源插头50和外接电源状态继电器线圈51；
当外接电源接入时，所述外接电源插头50闭合，所述外接电源状态继电器线圈51得电。
当外接电源插头连接时，外接电源状态继电器线圈51得电，触点F处于断开状态，F断开后紧急断电条件继电器线圈E失电，紧急断电条件继电器常开触点E由闭合状态变为断开状态，从而使紧急断电继电器线圈V失电，紧急断电继电器失电又使触点V断开升弓电磁阀控制回路，受电弓不能升起。
需要说明的是，外接电源状态继电器控制支路还包括串联连接的外接电源控制断路器S5。
图4-图6实现了升弓控制回路安全联锁，通过保护接地开关状态、外接电源连接器插入状态与升弓电磁阀控制电路联锁，当保护接地开关闭合或外接电源连接器插入的状态下，升弓电磁阀不能得电，不能升弓。
可以理解的是，以上各个图中的断路器S1-S5均是起到保护作用，与电路的控制逻辑没有关系。
需要说明的是，以上实施例提供的各个控制支路均由列车上的直流110V电源供电，即所述保护接地开关控制支路的两端分别连接DC110V+ 和DC110V-。所述开锁控制支路的两端分别连接DC110V+和DC110V-。所述受电弓联锁控制支路的两端分别连接DC110V+和DC110V-。紧急断电控制第一支路两端分别连接DC110V+和DC110V-。紧急断开控制第二支路两端分别连接DC110V+和DC110V-。外接电源状态继电器控制支路的两端分别连接DC110V+和DC110V-。
以上所述，仅是本发明的较佳实施例而已，并非对本发明作任何形式上的限制。虽然本发明已以较佳实施例揭露如上，然而并非用以限定本发明。任何熟悉本领域的技术人员，在不脱离本发明技术方案范围情况下，都可利用上述揭示的方法和技术内容对本发明技术方案做出许多可能的变动和修饰，或修改为等同变化的等效实施例。因此，凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所做的任何简单修改、等同变化及修饰，均仍属于本发明技术方案保护的范围内。

Claims (10)

  1. 一种动车组安全电路联锁控制装置，其特征在于，包括：保护接地开关控制支路；
    所述保护接地开关控制支路包括：串联连接的受电弓升弓气路截断阀、保护接地开关断开气路截断阀和保护接地开关断开电磁阀；
    当动车组高压设备检修维护或外接电源供电时，操作保护接地开关闭合，旋转所述受电弓升弓气路截断阀旋塞和保护接地开关断开气路截断阀旋塞，以打开钥匙箱箱盖；同时该保护接地开关控制支路断开，串联在所述保护接地开关控制支路中的所述保护接地开关断开电磁阀失电，所述保护接地开关断开电磁阀失电以使保护接地开关保持闭合；
    所述钥匙箱箱盖通过所述受电弓升弓气路截断阀和所述保护接地开关断开气路截断阀机械锁定。
  2. 根据权利要求1所述的动车组安全电路联锁控制装置，其特征在于，还包括：开锁控制支路；
    所述开锁控制支路包括：串联连接的开锁按钮、保护接地开关辅助触点和开锁继电器的线圈；
    所述开锁按钮位于所述钥匙箱上；
    所述保护接地开关闭合时，所述保护接地开关辅助触点闭合；
    操作所述保护接地开关闭合，按下所述开锁按钮，使所述开锁继电器的线圈得电，释放钥匙。
  3. 根据权利要求1所述的动车组安全电路联锁控制装置，其特征在于，还包括：受电弓联锁控制第一支路；
    所述受电弓联锁控制第一支路包括：串联连接的保护接地开关状态常闭触点和升弓继电器线圈；
    当所述保护接地开关闭合时，所述保护接地开关状态常闭触点断开，升弓继电器线圈失电，受电弓不能升起。
  4. 根据权利要求3所述的动车组安全电路联锁控制装置，其特征在于，还包括：受电弓联锁控制第二支路；
    所述受电弓联锁控制第二支路包括：串联连接的紧急断电继电器常开触点、升弓继电器的常开触点和升弓电磁阀；
    当紧急断电继电器失电时，所述紧急断电继电器常开触点断开；
    当受电弓升弓条件满足时，所述升弓继电器线圈得电，所述升弓继电器的常开触点闭合，所述升弓电磁阀得电，受电弓升起。
  5. 根据权利要求4所述的动车组安全电路联锁控制装置，其特征在于，还包括：紧急断电控制第一支路和紧急断开控制第二支路；
    所述紧急断电控制第一支路包括：串联连接的紧急断电按钮、紧急断电条件继电器常开触点、紧急断电继电器线圈；
    所述紧急断电控制第二支路包括：串联连接的外接电源状态继电器常闭触点和紧急断电条件继电器线圈；
    所述紧急断电控制第二支路与所述紧急断电按钮串联连接。
  6. 根据权利要求5所述的动车组安全电路联锁控制装置，其特征在于，还包括外接电源状态继电器控制支路；
    所述外接电源状态继电器控制支路包括：串联连接的外接电源插头和外接电源状态继电器线圈；
    当外接电源接入时，所述外接电源插头闭合，所述外接电源状态继电器线圈得电。
  7. 根据权利要求1所述的动车组安全电路联锁控制装置，其特征在于，所述保护接地开关控制支路还包括：保护接地断开控制断路器；
    所述保护接地断开控制断路器串联在所述保护接地开关控制支路中。
  8. 根据权利要求2所述的动车组安全电路联锁控制装置，其特征在于，所述开锁控制支路还包括：开锁控制断路器；
    所述开锁控制断路器串联在开锁控制支路中。
  9. 根据权利要求3所述的动车组安全电路联锁控制装置，其特征在于，所述受电弓联锁控制支路还包括：升弓控制断路器；
    所述升弓控制断路器串联在所述受电弓联锁控制支路中。
  10. 根据权利要求5所述的动车组安全电路联锁控制装置，其特征在于，所述紧急断电控制第一支路包括：紧急断电控制断路器；
    所述紧急断电控制断路器串联在所述紧急断电控制第一支路中。
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