Safety interlocking structure and locomotive

Abstract

The utility model relates to a safety interlocking structure and a locomotive, a plurality of functional lock cylinders and an electric key lock cylinder are arranged in a key box of the locomotive, the functional lock cylinders are used for inserting functional cabinet door keys capable of opening a cabinet door where functional components such as a hydrogen filling port or a lithium battery are located, the functional cabinet door keys rotate in the functional lock cylinders, the functional lock cylinders are rotated, and the functional components can be opened. And the functional lock cylinder switches off or switches on the cabinet door key lock cylinder switch. Due to the fact that the first end of the switch of the lock cylinder circuit breaker is connected with the first pole of the safety interlocking module, the second end of the switch of the lock cylinder circuit breaker, the second pole of the safety interlocking module, the lock cylinder circuit breaker and the safety interlocking module form a closed loop, circuit change is generated, and the key box electric key module unlocks an electric key in the electric key lock cylinder. At the moment, the electric key in the key box can be pulled out.

Description

Technical Field

[0001] The present disclosure relates to the technical field of new energy vehicles, and in particular to a safety interlocking structure and a locomotive. Background Art

[0002] In recent years, with the development of new energy technologies, the development of hydrogen energy technology has been very rapid. Hydrogen has become one of the energy sources with the most development potential in the 21st century. It has the advantages of being green, environmentally friendly and zero-emission throughout its life cycle. It has been gradually promoted and applied in new energy vehicles, rail transit and other fields.

[0003] At present, hydrogen-powered rail transit vehicles must add hydrogen to the hydrogen fuel cell storage system during operation. Due to the characteristics of hydrogen being easy to diffuse and ignite, the vehicle power supply must be disconnected before hydrogenation operations to prevent electric sparks from igniting possible hydrogen leakage. During the process of locomotive hydrogenation or battery charging, the operator confirms that the locomotive is powered off, then opens the hydrogenation port or the cabinet door where the functional components such as the lithium battery are located to perform hydrogenation or charging operations. There is a dangerous situation where the locomotive is performing hydrogenation or charging operations while it is powered on due to negligence of personnel. Utility Model Content

[0004] The present invention provides a safety interlock structure and a locomotive to improve safety during operations such as hydrogen refueling or charging.

[0005] In a first aspect, the present disclosure provides a safety interlock structure, including: a safety interlock module, a key box electric key module and a cabinet door lock core module; wherein,

[0006] The cabinet door lock core assembly module comprises a cabinet door key lock core switch and a lock core circuit breaker, wherein the first end of the cabinet door key lock core switch is used to connect to the first pole of the locomotive power supply, the second end of the cabinet door key lock core switch is connected to the first end of the coil of the lock core circuit breaker, the cabinet door key lock core switch is used to disconnect when the functional lock core of the key box is rotated to the pull-out position and to close when the functional lock core is rotated to the locking position, the second end of the coil of the lock core circuit breaker is connected to the second pole of the locomotive power supply, the first end of the switch of the lock core circuit breaker is connected to the first pole of the safety interlock module, and the second end of the switch of the lock core circuit breaker is connected to the second pole of the safety interlock module;

[0007] When the coil of the lock core circuit breaker is powered on, the first end of the switch of the lock core circuit breaker and the second end of the switch of the lock core circuit breaker are closed, and when the coil of the lock core circuit breaker is powered off, the first end of the switch of the lock core circuit breaker and the second end of the switch of the lock core circuit breaker are disconnected;

[0008] The key box electric key module is connected to the safety interlock module, and is used to lock the electric key in the electric key lock cylinder of the key box when the first end of the switch of the lock core circuit breaker and the second end of the switch of the lock core circuit breaker are disconnected, and to release the electric key in the electric key lock cylinder when the first end of the switch of the lock core circuit breaker and the second end of the switch of the lock core circuit breaker are closed, wherein the electric key in the key box is the electric key for starting the locomotive.

[0009] In some embodiments, the cabinet door lock core group module includes at least a hydrogen fuel cell cabinet circuit;

[0010] The hydrogen fuel cell cabinet circuit includes a first key lock cylinder switch and a first circuit breaker, the cabinet door key lock cylinder switch includes the first key lock cylinder switch, the lock cylinder circuit breaker includes the first circuit breaker, the first end of the first key lock cylinder switch is used to connect to the first pole of the locomotive power supply, the second end of the first key lock cylinder switch is connected to the first end of the coil of the first circuit breaker, the second end of the coil of the first circuit breaker is connected to the second pole of the locomotive power supply, the first end of the switch of the first circuit breaker is connected to the first pole of the safety interlock module, and the second end of the switch of the first circuit breaker is connected to the second pole of the safety interlock module.

[0011] In some embodiments, the cabinet door lock core assembly module includes at least a lithium battery cabinet circuit;

[0012] The lithium battery cabinet circuit includes a second key lock cylinder switch and a second circuit breaker, the cabinet door key lock cylinder switch includes the second key lock cylinder switch, the lock cylinder circuit breaker includes the second circuit breaker, the first end of the second key lock cylinder switch is used to connect to the first pole of the locomotive power supply, the second end of the second key lock cylinder switch is connected to the first end of the coil of the second circuit breaker, the second end of the coil of the second circuit breaker is connected to the second pole of the locomotive power supply, the first end of the switch of the second circuit breaker is connected to the first pole of the safety interlock module, and the second end of the switch of the second circuit breaker is connected to the second pole of the safety interlock module.

[0013] In some embodiments, the cabinet door lock core assembly module includes at least a high voltage electrical cabinet circuit;

[0014] The high-voltage electrical cabinet circuit includes a third key lock cylinder switch and a third circuit breaker, the cabinet door key lock cylinder switch includes the third key lock cylinder switch, the lock cylinder circuit breaker includes the third circuit breaker, the first end of the third key lock cylinder switch is used to connect the first pole of the locomotive power supply, the second end of the third key lock cylinder switch is connected to the first end of the coil of the third circuit breaker, the second end of the coil of the third circuit breaker is connected to the second pole of the locomotive power supply, the first end of the switch of the third circuit breaker is connected to the first pole of the safety interlock module, and the second end of the switch of the third circuit breaker is connected to the second pole of the safety interlock module.

[0015] In some embodiments, the cabinet door lock core assembly module includes at least an AC cabinet circuit;

[0016] The AC cabinet circuit includes a fourth key lock cylinder switch and a fourth circuit breaker, the cabinet door key lock cylinder switch includes the fourth key lock cylinder switch, the lock cylinder circuit breaker includes the fourth circuit breaker, the first end of the fourth key lock cylinder switch is used to connect to the first pole of the locomotive power supply, the second end of the fourth key lock cylinder switch is connected to the first end of the coil of the fourth circuit breaker, the second end of the coil of the fourth circuit breaker is connected to the second pole of the locomotive power supply, the first end of the switch of the fourth circuit breaker is connected to the first pole of the safety interlock module, and the second end of the switch of the fourth circuit breaker is connected to the second pole of the safety interlock module.

[0017] In some embodiments, the cabinet door lock core group module includes a hydrogen fuel cell cabinet circuit, a lithium battery cabinet circuit, a high-voltage electrical cabinet circuit and an AC cabinet circuit; the hydrogen fuel cell cabinet circuit includes a first key lock core switch and a first circuit breaker, the lithium battery cabinet circuit includes a second key lock core switch and a second circuit breaker, the high-voltage electrical cabinet circuit includes a third key lock core switch and a third circuit breaker, the AC cabinet circuit includes a fourth key lock core switch and a fourth circuit breaker, the cabinet door key lock core switch includes the first key lock core switch, the lock core circuit breaker includes the first circuit breaker, the cabinet door key lock core switch includes the second key lock core switch, the lock core circuit breaker includes the second circuit breaker, the cabinet door key lock core switch includes the third key lock core switch, the lock core circuit breaker includes the third circuit breaker, the cabinet door key lock core switch includes the fourth key lock core switch, and the lock core circuit breaker includes the fourth circuit breaker;

[0018] The first end of the first key lock cylinder switch is used to connect to the first pole of the locomotive power supply, the second end of the first key lock cylinder switch is connected to the first end of the coil of the first circuit breaker, the second end of the coil of the first circuit breaker is connected to the first end of the second key lock cylinder switch, the first end of the switch of the first circuit breaker is connected to the first pole of the safety interlock module, and the second end of the switch of the first circuit breaker is connected to the first end of the switch of the second circuit breaker;

[0019] The second end of the second key lock cylinder switch is connected to the first end of the coil of the second circuit breaker, the second end of the coil of the second circuit breaker is connected to the first end of the third key lock cylinder switch, and the second end of the switch of the second circuit breaker is connected to the first end of the switch of the third circuit breaker;

[0020] The second end of the third key lock cylinder switch is connected to the first end of the coil of the third circuit breaker, the second end of the coil of the third circuit breaker is connected to the first end of the fourth key lock cylinder switch, and the second end of the switch of the third circuit breaker is connected to the first end of the switch of the fourth circuit breaker;

[0021] The second end of the fourth key lock cylinder switch is connected to the first end of the coil of the fourth circuit breaker, the second end of the coil of the fourth circuit breaker is connected to the second pole of the locomotive power supply, and the second end of the switch of the fourth circuit breaker is connected to the second pole of the safety interlock module.

[0022] In some embodiments, the structure further comprises a main circuit breaker and a traction motor;

[0023] The main circuit breaker is used to connect the battery, and the main circuit breaker is connected to the safety interlock module;

[0024] The traction motor is connected to the main circuit breaker.

[0025] In some embodiments, the structure also includes an operating console lock cylinder, which is used to insert an electric key for starting the locomotive. The main circuit breaker is connected to the operating console lock cylinder. The main circuit breaker is used to be turned on when the lock cylinder of the operating console is rotated to the position for starting the locomotive, and to be turned off when the lock cylinder of the operating console is rotated to the position for stopping the locomotive.

[0026] In some embodiments, the structure further comprises an electric key lock cylinder and a functional lock cylinder group, wherein the electric key lock cylinder and the functional lock cylinder group are installed in the same key box;

[0027] The electric key lock cylinder is arranged on the outside of the locomotive, and the electric key for starting the locomotive is inserted into the electric key lock cylinder;

[0028] The functional lock core group is arranged on the outside of the locomotive, the functional lock core group is connected to the cabinet door lock core group module, and the cabinet door key lock core switch is used to close when the functional lock core group is turned to the locking position.

[0029] In a second aspect, the present disclosure provides a locomotive comprising the safety interlock structure described in any one of the above embodiments.

[0030] The present disclosure provides a safety interlocking structure and a locomotive, wherein a plurality of functional lock cylinders and electric key lock cylinders are arranged in a key box of the locomotive, wherein the functional lock cylinder is used to insert a functional cabinet door key that can open a cabinet door where functional components such as a hydrogen filling port or a lithium battery are located, and the electric key lock cylinder is used to insert an electric key for starting the locomotive, and the functional lock cylinder is connected to a corresponding cabinet door key lock cylinder switch, and the functional cabinet door key is rotated in the functional lock cylinder to rotate the functional lock cylinder, and the functional lock cylinder disconnects or conducts the cabinet door key lock cylinder switch. The first end of the cabinet door key lock cylinder switch is used to connect to the first pole of the locomotive power supply, the second end of the cabinet door key lock cylinder switch is connected to the first end of the coil of the lock cylinder circuit breaker, and the second end of the coil of the lock cylinder circuit breaker is connected to the second pole of the locomotive power supply, so that the cabinet door key lock cylinder switch and the coil of the lock cylinder circuit breaker are connected in series between the first pole and the second pole of the locomotive power supply. When the functional cabinet door key is inserted into the functional lock core, the functional cabinet door key is rotated so that the functional lock core rotates to the locked position, the cabinet door key lock core switch is closed, the cabinet door key lock core switch is turned on, the cabinet door key lock core switch and the branch where the coil of the lock core circuit breaker is located are turned on, and the coil of the lock core circuit breaker is electrically turned on. Since the first end of the switch of the lock core circuit breaker is connected to the first pole of the safety interlock module, and the second end of the switch of the lock core circuit breaker is connected to the second pole of the safety interlock module, the lock core circuit breaker and the safety interlock module form a closed loop, resulting in circuit changes, and the key box electric key module unlocks the lock of the electric key in the electric key lock core, and only then can the electric key in the key box be pulled out. When the functional cabinet door key is rotated and drives the functional lock core to rotate to the pull-out position, the functional cabinet door key is pulled out and can be used to open the cabinet door where the corresponding functional component is located. At this time, the functional lock core rotates to the position of disconnecting the cabinet door key lock core switch, the cabinet door key lock core switch and the branch where the coil of the lock core circuit breaker is located are disconnected, and the lock core circuit breaker is disconnected. The closed loop of the lock core circuit breaker and the safety interlock module is disconnected, resulting in circuit changes. The key box electric key module locks the electric key in the electric key lock core to prevent the electric key in the key box from being manually pulled out. After the functional cabinet door key is pulled out from the functional lock core of the key box, the functional cabinet door key is used to open the corresponding functional component cabinet door to operate the functional component. For example, when performing operations such as hydrogenation on the hydrogenation port, the electric key is locked in the electric key lock core to prevent the driver from inserting the electric key into the lock core of the driver's console to start the locomotive, thereby preventing the driver from starting the locomotive when performing dangerous operations such as hydrogenation, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present disclosure will be described in more detail below based on embodiments and with reference to the accompanying drawings:

[0032] Figure 1 A schematic diagram of a safety interlock structure provided in an embodiment of the present disclosure;

[0033] Figure 2 Another schematic diagram of the safety interlock structure provided by the embodiment of the present disclosure;

[0034] Figure 3 A schematic diagram of a functional lock cylinder provided in an embodiment of the present disclosure;

[0035] Figure 4-1 A schematic diagram of a functional lock cylinder in a pulled-out position provided in an embodiment of the present disclosure;

[0036] Figure 4-2 A schematic diagram of a functional lock cylinder in a locked position provided in an embodiment of the present disclosure.

[0037] In the drawings, the same reference numerals are used for the same components, and the drawings are not drawn to scale.

[0038] Figure numerals: 100, safety interlock module; S1, first key lock cylinder switch; QF1, first circuit breaker; S2, second key lock cylinder switch; QF2, second circuit breaker; S3, third key lock cylinder switch; QF3, third circuit breaker; S4, fourth key lock cylinder switch; QF4, fourth circuit breaker. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the technical solution of the present disclosure, and to fully understand and implement how the present disclosure applies technical means to solve technical problems and achieve the corresponding technical effects, the technical solution in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only embodiments of a part of the present disclosure, not all of the embodiments. The embodiments of the present disclosure and the various features in the embodiments can be combined with each other without conflict, and the technical solutions formed are all within the scope of protection of the present disclosure. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the present disclosure.

[0040] It should be noted that the terms "first", "second", etc. in the specification and claims of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present disclosure described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products, or devices.

[0041] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0042] Embodiment 1

[0043] Figure 1 , 2 This is a schematic diagram of the structure of the safety interlock structure provided by the embodiment of the present disclosure. Figure 1 , 2 As shown, a safety interlock structure includes: a safety interlock module 100, a key box electric key module and a cabinet door lock core module; wherein,

[0044] The cabinet door lock core assembly module includes a cabinet door key lock core switch and a lock core circuit breaker, wherein the first end of the cabinet door key lock core switch is used to connect to the first pole of the locomotive power supply, the second end of the cabinet door key lock core switch is connected to the first end of the coil of the lock core circuit breaker, the cabinet door key lock core switch is used to disconnect when the functional lock core of the key box is rotated to the pull-out position and to close when the functional lock core is rotated to the locking position, the second end of the coil of the lock core circuit breaker is connected to the second pole of the locomotive power supply, the first end of the switch of the lock core circuit breaker is connected to the first pole of the safety interlock module 100, and the second end of the switch of the lock core circuit breaker is connected to the second pole of the safety interlock module 100;

[0045] When the coil of the lock core circuit breaker is powered on, the first end of the switch of the lock core circuit breaker and the second end of the switch of the lock core circuit breaker are closed, and when the coil of the lock core circuit breaker is powered off, the first end of the switch of the lock core circuit breaker and the second end of the switch of the lock core circuit breaker are disconnected;

[0046] The key box electric key module is connected to the safety interlock module 100, and is used to lock the electric key in the electric key lock cylinder of the key box when the first end of the switch of the lock core circuit breaker and the second end of the switch of the lock core circuit breaker are disconnected, and to release the electric key in the electric key lock cylinder when the first end of the switch of the lock core circuit breaker and the second end of the switch of the lock core circuit breaker are closed, wherein the electric key in the key box is the electric key for starting the locomotive.

[0047] In this embodiment, the safety interlock module 100 is used to connect the key box electric key module and the cabinet door lock core assembly module, and the key box electric key module is used to release the electric key in the electric key lock core of the key box when the cabinet door key lock core switch is closed. When the electric key in the electric key lock core is locked, the electric key cannot be pulled out of the key box; when the electric key in the electric key lock core is released, the electric key can be pulled out of the key box. The key box electric key module can lock or release the electric key in the electric key lock core by controlling the mechanical locking structure, and the mechanical locking structure is not a technical point improved in the present application, and a mechanical locking structure that can lock the electric key in the prior art can be used. The cabinet door lock core assembly module is used to respond to the rotational position of the functional lock core, such as the pull-out position and the locked position.

[0048] The electric key lock cylinder is connected to the function key through a mechanical interlocking structure, which is used to lock or release the function key when the electric key lock cylinder rotates. When the electric key lock cylinder rotates to the removal position, the electric key can be taken out, and the electric key lock cylinder drives the mechanical interlocking structure to move, lock the function key, and the function key cannot be pulled out. When the electric key lock cylinder rotates to the locking position, it drives the mechanical interlocking structure to release the cabinet door key, and the cabinet door key can be pulled out. When the cabinet door key is pulled out, the cabinet door key lock cylinder switch is disconnected, and the key box electric key module locks the electric key in the electric key lock cylinder.

[0049] When the cabinet door key lock core switch is turned off, the lock core circuit breaker coil loses power, the magnetic field disappears, and the lock core circuit breaker switch is turned off. When the cabinet door key lock core switch is turned on, the lock core circuit breaker coil is energized by the locomotive power supply, generating a magnetic field, and the lock core circuit breaker switch is closed under the action of the magnetic field.

[0050] When the switch of the lock core circuit breaker is turned off, no loop is formed between the safety interlock module 100 and the switch of the lock core circuit breaker. When the switch of the lock core circuit breaker is turned off, that is, when the switch of the cabinet door key lock core is turned off, the functional lock core is in the unplugged position, and the functional key may be pulled out to open the cabinet door where the functional component is located. The worker may operate the functional component, such as hydrogenating the hydrogen filling port. When the switch of the lock core circuit breaker is closed, a loop is formed between the safety interlock module 100 and the switch of the lock core circuit breaker. When the switch of the lock core circuit breaker is closed, that is, when the switch of the cabinet door key lock core is closed, the functional key is inserted back into the functional lock core, and the electric key can be taken out.

[0051] In this embodiment, the first end and the second end of the cabinet door key lock cylinder switch are disconnected when the functional lock cylinder of the key box is rotated to the pull-out position, and the first end and the second end of the cabinet door key lock cylinder switch are closed when the functional lock cylinder is rotated to the locking position. Figure 4-1 and Figure 4-2 The outer side of the functional lock core is provided with an insulating layer and a conductive layer. When the functional lock core rotates, the insulating layer or the conductive layer disconnects or connects the circuit where the coil of the lock core circuit breaker is located. The coil of the lock core circuit breaker is connected to a conductor, which is connected to the insulating layer and / or the conductive layer, and the conductive layer is connected to the locomotive power supply. Figure 4-1 When the conductor is completely in contact with the insulating layer, that is, when the functional lock core rotates to the pull-out position, the circuit between the lock core circuit breaker coil and the locomotive power supply is disconnected, which is equivalent to the cabinet door key lock core switch being disconnected. At this time, the mechanical interlocking structure releases the functional key, and the functional key can be pulled out, but the electric key cannot be pulled out. Figure 4-2 When the conductor is in contact with the conductive layer, that is, when the functional lock core rotates to the locked position, the coil of the lock core circuit breaker and the locomotive power supply are connected, and the cabinet door key lock core switch is closed. At this time, the mechanical interlocking structure locks the functional key, and the functional key cannot be pulled out, but the electric key can be pulled out.

[0052] In this embodiment, a plurality of functional lock cylinders and electric key lock cylinders are arranged in the key box of the locomotive. The functional lock cylinder is used to insert the functional cabinet door key that can open the cabinet door where the functional components such as the hydrogen filling port or the lithium battery are located. The electric key lock cylinder is used to insert the electric key for starting the locomotive. The functional lock cylinder is connected to the corresponding cabinet door key lock cylinder switch. The functional cabinet door key is rotated in the functional lock cylinder to rotate the functional lock cylinder, and the functional lock cylinder disconnects or conducts the cabinet door key lock cylinder switch. The first end of the cabinet door key lock cylinder switch is used to connect to the first pole of the locomotive power supply, the second end of the cabinet door key lock cylinder switch is connected to the first end of the coil of the lock cylinder circuit breaker, and the second end of the coil of the lock cylinder circuit breaker is connected to the second pole for connecting to the locomotive power supply, so that the cabinet door key lock cylinder switch and the coil of the lock cylinder circuit breaker are connected in series between the first pole and the second pole of the locomotive power supply. When the functional cabinet door key is inserted into the functional lock core, the functional cabinet door key is rotated so that the functional lock core rotates to the locking position, the cabinet door key lock core switch is closed, the cabinet door key lock core switch is turned on, the cabinet door key lock core switch and the branch where the coil of the lock core circuit breaker is located are turned on, and the coil of the lock core circuit breaker is electrically turned on. Since the first end of the switch of the lock core circuit breaker is connected to the first pole of the safety interlock module 100, and the second end of the switch of the lock core circuit breaker is connected to the second pole of the safety interlock module 100, the lock core circuit breaker and the safety interlock module 100 form a closed loop, resulting in a circuit change, and the key box electric key module unlocks the lock of the electric key in the electric key lock core, and only then can the electric key in the key box be pulled out. When the functional cabinet door key is rotated and drives the functional lock core to rotate to the pull-out position, the functional cabinet door key is pulled out and can be used to open the cabinet door where the corresponding functional component is located. At this time, the functional lock core rotates to the position of disconnecting the cabinet door key lock core switch, and the cabinet door key lock core switch and the branch where the coil of the lock core circuit breaker is located are disconnected, and the lock core circuit breaker is disconnected. The closed loop of the lock core circuit breaker and the safety interlock module 100 is disconnected, resulting in a circuit change. The safety interlock module 100 locks the electric key in the electric key lock core to prevent the electric key in the key box from being manually pulled out. After the functional cabinet door key is pulled out from the functional lock core of the key box, the functional cabinet door key is used to open the corresponding functional component cabinet door to operate the functional component, such as when performing operations such as hydrogenation on the hydrogenation port, the electric key is locked in the electric key lock core to prevent the driver from inserting the electric key into the lock core of the driver's console to start the locomotive, thereby preventing the driver from starting the locomotive when performing dangerous operations such as hydrogenation, thereby improving safety.

[0053] In one embodiment, the cabinet door lock core group module includes at least a hydrogen fuel cell cabinet circuit;

[0054] The hydrogen fuel cell cabinet circuit includes a first key lock core switch S1 and a first circuit breaker QF1, the cabinet door key lock core switch includes the first key lock core switch S1, the lock core circuit breaker includes the first circuit breaker QF1, the first end of the first key lock core switch S1 is used to connect the first pole of the locomotive power supply, the second end of the first key lock core switch S1 is connected to the first end of the coil of the first circuit breaker QF1, the second end of the coil of the first circuit breaker QF1 is connected to the second pole of the locomotive power supply, the first end of the switch of the first circuit breaker QF1 is connected to the first pole of the safety interlock module 100, and the second end of the switch of the first circuit breaker QF1 is connected to the second pole of the safety interlock module 100. In this embodiment, the functional component is a hydrogen fuel cell, the hydrogen fuel cell is locked in the hydrogen fuel cell cabinet, and the functional lock core on the battery box includes a first key lock core, the first key lock core is used to insert a first key, and the first key is used to open the hydrogen fuel cell cabinet. The first key lock core switch S1 is used to disconnect when the first key lock core is in the pull-out position and close when the first key lock core is in the locked position. When the first key lock core switch S1 is disconnected, the coil of the first circuit breaker QF1 loses power, the switch of the first circuit breaker QF1 is disconnected, no loop is formed between the switch of the first circuit breaker QF1 and the safety interlock module 100, and the key box electric key module locks the electric key; when the first key lock core switch S1 is closed, the coil of the first circuit breaker QF1 is energized, the switch of the first circuit breaker QF1 is turned on, a loop is formed between the switch of the first circuit breaker QF1 and the safety interlock module 100, and the key box electric key module releases the electric key.

[0055] In one embodiment, the cabinet door lock core group module includes at least a lithium battery cabinet circuit;

[0056] The lithium battery cabinet circuit includes a second key lock cylinder switch S2 and a second circuit breaker QF2, the cabinet door key lock cylinder switch includes the second key lock cylinder switch S2, the lock cylinder circuit breaker includes the second circuit breaker QF2, the first end of the second key lock cylinder switch S2 is used to connect the first pole of the locomotive power supply, the second end of the second key lock cylinder switch S2 is connected to the first end of the coil of the second circuit breaker QF2, the second end of the coil of the second circuit breaker QF2 is connected to the second pole of the locomotive power supply, the first end of the switch of the second circuit breaker QF2 is connected to the first pole of the safety interlock module 100, and the second end of the switch of the second circuit breaker QF2 is connected to the second pole of the safety interlock module 100. In this embodiment, the functional component is a lithium battery, the lithium battery is locked in the lithium battery cabinet, and the functional lock cylinder on the battery box includes a second key lock cylinder, the second key lock cylinder is used to insert a second key, and the second key is used to open the lithium battery cabinet. The second key lock cylinder switch S2 is used to disconnect when the second key lock cylinder is in the pull-out position and close when the second key lock cylinder is in the locked position. When the second key lock core switch S2 is disconnected, the coil of the second circuit breaker QF2 loses power, the switch of the second circuit breaker QF2 is disconnected, no loop is formed between the switch of the second circuit breaker QF2 and the safety interlock module 100, and the key box electric key module locks the electric key; when the second key lock core switch S2 is closed, the coil of the second circuit breaker QF2 is energized, the switch of the second circuit breaker QF2 is turned on, a loop is formed between the switch of the second circuit breaker QF2 and the safety interlock module 100, and the key box electric key module releases the electric key.

[0057] In one embodiment, the cabinet door lock core group module includes at least a high-voltage electrical cabinet circuit;

[0058] The high-voltage electrical cabinet circuit includes a third key lock core switch S3 and a third circuit breaker QF3, the cabinet door key lock core switch includes the third key lock core switch S3, the lock core circuit breaker includes the third circuit breaker QF3, the first end of the third key lock core switch S3 is used to connect the first pole of the locomotive power supply, the second end of the third key lock core switch S3 is connected to the first end of the coil of the third circuit breaker QF3, the second end of the coil of the third circuit breaker QF3 is connected to the second pole of the locomotive power supply, the first end of the switch of the third circuit breaker QF3 is connected to the first pole of the safety interlock module 100, and the second end of the switch of the third circuit breaker QF3 is connected to the second pole of the safety interlock module 100. In this embodiment, the functional component is a high-voltage electrical device, the high-voltage electrical device is locked in the high-voltage electrical cabinet, the functional lock core on the battery box includes a third key lock core, the third key lock core is used to insert a third key, and the third key is used to open the high-voltage electrical cabinet. The third key lock cylinder switch S3 is used to be disconnected when the third key lock cylinder is in the pull-out position and closed when the third key lock cylinder is in the locked position. When the third key lock cylinder switch S3 is disconnected, the coil of the third circuit breaker QF3 loses power, the switch of the third circuit breaker QF3 is disconnected, no loop is formed between the switch of the third circuit breaker QF3 and the safety interlock module 100, and the key box electric key module locks the electric key; when the third key lock cylinder switch S3 is closed, the coil of the third circuit breaker QF3 is energized, the switch of the third circuit breaker QF3 is turned on, a loop is formed between the switch of the third circuit breaker QF3 and the safety interlock module 100, and the key box electric key module releases the electric key.

[0059] In one embodiment, the cabinet door lock core assembly module includes at least an AC cabinet circuit;

[0060] The AC cabinet circuit includes a fourth key lock core switch S4 and a fourth circuit breaker QF4, the cabinet door key lock core switch includes the fourth key lock core switch S4, the lock core circuit breaker includes the fourth circuit breaker QF4, the first end of the fourth key lock core switch S4 is used to connect the first pole of the locomotive power supply, the second end of the fourth key lock core switch S4 is connected to the first end of the coil of the fourth circuit breaker QF4, the second end of the coil of the fourth circuit breaker QF4 is connected to the second pole of the locomotive power supply, the first end of the switch of the fourth circuit breaker QF4 is connected to the first pole of the safety interlock module 100, and the second end of the switch of the fourth circuit breaker QF4 is connected to the second pole of the safety interlock module 100. In this embodiment, the functional component is an AC, the AC is locked in the AC cabinet, the functional lock core on the battery box includes a fourth key lock core, the fourth key lock core is used to insert the fourth key, and the fourth key is used to open the AC cabinet. The fourth key lock cylinder switch S4 is used to be disconnected when the fourth key lock cylinder is in the pull-out position and closed when the fourth key lock cylinder is in the locked position. When the fourth key lock cylinder switch S4 is disconnected, the coil of the fourth circuit breaker QF4 loses power, the switch of the fourth circuit breaker QF4 is disconnected, no loop is formed between the switch of the fourth circuit breaker QF4 and the safety interlock module 100, and the key box electric key module locks the electric key; when the fourth key lock cylinder switch S4 is closed, the coil of the fourth circuit breaker QF4 is energized, the switch of the fourth circuit breaker QF4 is turned on, a loop is formed between the switch of the fourth circuit breaker QF4 and the safety interlock module 100, and the key box electric key module releases the electric key.

[0061] In one embodiment, the cabinet door lock core group module includes a hydrogen fuel cell cabinet circuit, a lithium battery cabinet circuit, a high-voltage electrical cabinet circuit and an AC cabinet circuit; the hydrogen fuel cell cabinet circuit includes a first key lock core switch S1 and a first circuit breaker QF1, the lithium battery cabinet circuit includes a second key lock core switch S2 and a second circuit breaker QF2, the high-voltage electrical cabinet circuit includes a third key lock core switch S3 and a third circuit breaker QF3, the AC cabinet circuit includes a fourth key lock core switch S4 and a fourth circuit breaker QF4, the cabinet door The key lock cylinder switch includes the first key lock cylinder switch S1, the lock cylinder circuit breaker includes the first circuit breaker QF1, the cabinet door key lock cylinder switch includes the second key lock cylinder switch S2, the lock cylinder circuit breaker includes the second circuit breaker QF2, the cabinet door key lock cylinder switch includes the third key lock cylinder switch S3, the lock cylinder circuit breaker includes the third circuit breaker QF3, the cabinet door key lock cylinder switch includes the fourth key lock cylinder switch S4, and the lock cylinder circuit breaker includes the fourth circuit breaker QF4;

[0062] The first end of the first key lock core switch S1 is used to connect to the first pole of the locomotive power supply, the second end of the first key lock core switch S1 is connected to the first end of the coil of the first circuit breaker QF1, the second end of the coil of the first circuit breaker QF1 is connected to the first end of the second key lock core switch S2, the first end of the switch of the first circuit breaker QF1 is connected to the first pole of the safety interlock module 100, and the second end of the switch of the first circuit breaker QF1 is connected to the first end of the switch of the second circuit breaker QF2;

[0063] The second end of the second key lock cylinder switch S2 is connected to the first end of the coil of the second circuit breaker QF2, the second end of the coil of the second circuit breaker QF2 is connected to the first end of the third key lock cylinder switch S3, and the second end of the switch of the second circuit breaker QF2 is connected to the first end of the switch of the third circuit breaker QF3;

[0064] The second end of the third key lock cylinder switch S3 is connected to the first end of the coil of the third circuit breaker QF3, the second end of the coil of the third circuit breaker QF3 is connected to the first end of the fourth key lock cylinder switch S4, and the second end of the switch of the third circuit breaker QF3 is connected to the first end of the switch of the fourth circuit breaker QF4;

[0065] The second end of the fourth key lock cylinder switch S4 is connected to the first end of the coil of the fourth circuit breaker QF4, the second end of the coil of the fourth circuit breaker QF4 is connected to the second pole of the locomotive power supply, and the second end of the switch of the fourth circuit breaker QF4 is connected to the second pole of the safety interlock module 100. In this embodiment, the first key lock cylinder switch S1, the coil of the first circuit breaker QF1, the second key lock cylinder switch S2, the coil of the second circuit breaker QF2, the third key lock cylinder switch S3, the coil of the third circuit breaker QF3, the fourth key lock cylinder switch S4, and the coil of the fourth circuit breaker QF4 are connected in series between the first pole of the locomotive power supply and the second pole of the locomotive power supply, and the switch of the first circuit breaker QF1, the switch of the second circuit breaker QF2, the switch of the third circuit breaker QF3, and the switch of the fourth circuit breaker QF4 are connected in series between the first pole of the safety interlock module 100 and the second pole of the safety interlock module 100. When the first key lock core switch S1, the second key lock core switch S2, the third key lock core switch S3 and the fourth key lock core switch S4 are all closed and turned on, that is, the first key, the second key, the third key and the fourth key are required to be inserted into the corresponding functional lock cores respectively, the coil of the first circuit breaker QF1, the coil of the second circuit breaker QF2, the coil of the third circuit breaker QF3 and the coil of the fourth circuit breaker QF4 are energized, the switch of the first circuit breaker QF1, the switch of the second circuit breaker QF2, the switch of the third circuit breaker QF3 and the switch of the fourth circuit breaker QF4 are all closed, the switch of the first circuit breaker QF1, the switch of the second circuit breaker QF2, the switch of the third circuit breaker QF3, the switch of the fourth circuit breaker QF4 and the safety interlock module 100 form a loop, and the key box electric key module releases the electric key.

[0066] In one embodiment, the structure further comprises a main circuit breaker and a traction motor;

[0067] The main circuit breaker is used to connect the battery, and the main circuit breaker is connected to the safety interlock module 100;

[0068] The traction motor is connected to the main circuit breaker. In this embodiment, when the locomotive is started, batteries such as hydrogen fuel cells and lithium batteries jointly output high-voltage direct current to the outside, and the high-voltage direct current passes through the main circuit breaker and high-voltage electrical equipment, and is then converted into high-voltage alternating current by the converter to electrically drive the traction motor.

[0069] In one embodiment, the structure further includes an operating table lock cylinder, the operating table lock cylinder is used to insert an electric key for starting the locomotive, the main circuit breaker is connected to the operating table lock cylinder, and the main circuit breaker is used to be turned on when the lock cylinder of the operating table is rotated to the position of starting the locomotive, and to be turned off when the lock cylinder of the operating table is rotated to the position of stopping the locomotive. In this embodiment, the electric key for starting the locomotive is the same key as the electric key inserted into the key box. After the hydrogenation and other operations are completed, the electric key is pulled out from the electric key lock cylinder, inserted into the operating table lock cylinder on the driver's operating table, and the electric key is turned so that the operating table lock cylinder is rotated to the position of starting the locomotive, the main circuit breaker is turned on, the traction motor is turned on, and the locomotive is started. The electric key can also be turned back so that the operating table lock cylinder is rotated to the position of stopping the locomotive, the main circuit breaker is turned off, the connection with the traction motor is disconnected, and the locomotive is stopped.

[0070] In one embodiment, the structure further comprises an electric key lock cylinder and a functional lock cylinder group, and the electric key lock cylinder and the functional lock cylinder group are installed in the same key box;

[0071] The electric key lock cylinder is arranged on the outside of the locomotive, and the electric key for starting the locomotive is inserted into the electric key lock cylinder;

[0072] The functional lock core group is arranged outside the locomotive, the functional lock core group is connected to the cabinet door lock core group module, and the cabinet door key lock core switch is used to close when the functional lock core group is turned to the locking position. In this embodiment, in order to facilitate the taking and placing of each functional key, the functional lock core group and the electric key lock core are installed in the same key box, and the key box is arranged outside the locomotive, so as to facilitate the taking and placing of the functional key when working outside the locomotive.

[0073] In this embodiment, before the locomotive is hydrogenated, the hydrogenation operator will get on board to confirm whether the locomotive has been powered off, ensuring that the operator can perform maintenance work on the panel cabinet only after the locomotive is powered off, thereby ensuring the personal safety of the operator and the safe use of high-voltage equipment. It ensures that the locomotive can only be hydrogenated after the power is disconnected, ensuring the safety of the locomotive's hydrogen-related operations. At the same time, the safety interlock also covers the locomotive's high-voltage electrical panel cabinet.

[0074] See also Figure 3 In this embodiment, the first-level safety interlock lock cylinder and the second-level electric key lock cylinder are rotated to adjust the gear position using the same electric key, and one locomotive has one electric key. One electric key and four functional keys are in the key box. The four functional keys are usually inserted into the functional lock cylinder of the key box. When they are needed, the electric key located in the first-level safety interlock lock cylinder is unplugged and inserted into the second-level electric key lock cylinder. After rotating, the functional key can be removed.

[0075] See also Figure 3In this embodiment, the safety interlock structure includes two levels of safety interlock devices, a first-level safety interlock device and a second-level safety interlock device. In the first-level safety interlock device, the locomotive driver's console is equipped with a locomotive electric key lock cylinder. The driver inserts the locomotive electric key into the lock cylinder, rotates it to the "closed" position, and then starts the locomotive. After the locomotive is parked, the key is rotated to the "disconnected" position and then pulled out. In the second-level safety interlock device, a key box equipped with an electric key lock cylinder and four functional key lock cylinders is set on the vehicle. The hydrogenation port of the locomotive hydrogen fuel cell hydrogen storage system is provided with a protective cabinet door, which is opened by the operator using a functional key before the locomotive is hydrogenated. At the same time, the high-voltage electrical cabinet, converter cabinet and lithium battery cabinet on the locomotive are opened by the functional key during maintenance. The second-level safety interlock device interlocks the hydrogenation port and the electrical cabinet door equipped with high-voltage equipment. When the locomotive electric key lock cylinder on the key box is in the removal position (no electric key is inserted), the functional key is locked and cannot be pulled out. When the electric key is inserted into the locomotive electric key lock cylinder on the key box and is in the "locked" position, the function key on the key box can be rotated and pulled out to open the corresponding hydrogen filling port or electrical panel cabinet door. At the same time, when any green key is not in the locked position, the electric key is locked and cannot be pulled out.

[0076] In this embodiment, the locomotive traction circuit includes a hydrogen fuel cell cabinet, a lithium battery cabinet, a main circuit breaker, a high-voltage electrical cabinet, an inverter cabinet and a traction motor. When the locomotive is running, the hydrogen fuel cell and the lithium battery jointly output high-voltage direct current to the outside. The electric energy passes through the main circuit breaker and the high-voltage electrical cabinet and is then converted by the inverter into high-voltage alternating current to drive the traction motor. The main circuit breaker is responsible for controlling the on and off of the traction circuit. The locomotive driver controls the state of the main circuit breaker through the locomotive electric key. When the locomotive electric key is in the lock cylinder of the driver's console and is in the "closed" position, the main circuit breaker is turned on and the locomotive can be started; when the locomotive electric key is in the "closed" position, the main circuit breaker is turned on and the locomotive can be started; when the locomotive electric key is in the "closed" position, the main circuit breaker is turned on and the locomotive can be started. "disconnect" The hydrogen fuel cell cabinet includes the hydrogen filling port of the on-board hydrogen storage system, and its cabinet door key lock cylinder has the cabinet door status feedback function. The cabinet doors of the lithium battery cabinet, high-voltage electrical cabinet and converter cabinet also have the above feedback function.

[0077] In this embodiment, the above four high-voltage panel cabinet door status feedback circuits are as follows: Figure 3As shown, the circuit consists of the locomotive DC110 control circuit, the cabinet door key lock cylinder switch, the lock cylinder circuit breaker and the safety interlock device. The cabinet door key lock cylinder switch and the lock cylinder circuit breaker are driven by the locomotive DC110 control circuit. When the cabinet door is locked, the cabinet door key lock cylinder switch No. 1 and No. 2 are connected, and when the cabinet door is opened, the cabinet door key lock cylinder switch No. 1 and No. 2 are disconnected. A lock cylinder circuit breaker is connected in series behind the cabinet door key lock cylinder switch. The circuit breaker consists of a coil and a switch contact linked to the coil power state. When the coil B1 and B2 are energized, the switch contact A1 and A2 are connected, otherwise A1 and A2 are disconnected. When the cabinet door is locked, the cabinet door key lock cylinder switch No. 1 and No. 2 are connected, and then the lock cylinder circuit breaker coil B1 and B2 are energized, and the switch contact A1 and A2 are connected. The safety interlock device X1 and X2 points are DC24V power supply interfaces. When the switch contacts A1 and A2 of the four lock core circuit breakers are all turned on, a DC24V circuit is formed between the safety interlock device and the four lock core circuit breakers. At this time, the safety interlock device determines that all four cabinet doors are locked and allows the locomotive electric key to be removed from the key box.

[0078] When the locomotive needs to be refueled or the high-voltage electrical cabinet is to be repaired, first pull out the locomotive electric key in the lock cylinder of the driver's console. At this time, the main circuit breaker is disconnected and the locomotive traction circuit is in a power-off safety state. Insert the locomotive electric key into the key box and rotate it to the "lock" position. Then take out the green key of the corresponding cabinet and use it to open the cabinet door for hydrogen refueling or maintenance. After completion, close and lock the cabinet door and insert the green key back into the key box. Only when the high-level signals of the cabinet doors of the hydrogen fuel cell cabinet, lithium battery cabinet, high-voltage electrical cabinet, and converter cabinet are transmitted to the key box, can the locomotive electric key be removed from the key box to start the locomotive.

[0079] In this embodiment, when the locomotive needs to be refueled or the high-voltage electrical cabinet is to be repaired, the locomotive electric key located in the lock cylinder of the driver's console is first pulled out. At this time, the main circuit breaker is disconnected and the locomotive traction circuit is in a power-off safety state. The locomotive electric key is inserted into the key box and rotated to the "lock" position. Then the green key of the corresponding cabinet is taken out and the cabinet door is opened with the key for hydrogen refueling or maintenance. After completion, the cabinet door is closed and locked and the green key is inserted back into the key box. Only when the high-level signals of the cabinet doors of the hydrogen fuel cell cabinet, lithium battery cabinet, high-voltage electrical cabinet, and converter cabinet are transmitted to the key box, the locomotive electric key can be removed from the key box to start the locomotive.

[0080] In this embodiment, the locomotive enters the hydrogen refueling station, stops and turns off the vehicle traction system, disconnects the power supply, and pulls out the locomotive electric key located on the driver's console. Insert the electric key into the corresponding lock cylinder of the safety interlock key box and rotate it to the "lock" position, then take out the green key corresponding to the hydrogen filling port. Go to the hydrogen filling port of the on-board hydrogen storage system, use the green key to open the hydrogen filling port baffle, and the operator begins to perform hydrogen filling related operations. After the hydrogenation is completed, close the hydrogen filling port baffle, take out the green key and put it back into the safety interlock key box and rotate it to the "lock" position, take out the locomotive electric key again, then insert the electric key back into the lock cylinder of the driver's cab console, put it in the "closed" position, start the locomotive and drive away from the hydrogen refueling station. It ensures that the locomotive can only carry out hydrogenation operations after the power supply is disconnected, ensuring the safety of the locomotive's hydrogen-related operations. At the same time, the safety interlock also includes the locomotive high-voltage electrical panel cabinet. Through the mechanical locking structure, it is ensured that the locomotive can only carry out hydrogenation operations or enter the high-voltage electrical panel cabinet after the power supply is disconnected.

[0081] In this embodiment, the first-level safety interlocking device: the locomotive driver's console is equipped with an electric key lock cylinder. The driver inserts the locomotive electric key into the lock cylinder, rotates it to the "closed" position, and then starts the locomotive. After the locomotive is parked, the key is rotated to the "disconnected" position and then pulled out. The second-level safety interlocking device: a key box equipped with an electric key lock cylinder and 4 green key lock cylinders is set on the vehicle. A protective baffle is set at the hydrogen filling port of the locomotive onboard hydrogen storage system, and the door is opened by the operator using a green key before the locomotive is refueled. At the same time, the high-voltage electrical cabinet, converter cabinet and lithium battery cabinet on the locomotive are opened by the green key during maintenance. The second-level safety interlocking device: a key box equipped with an electric key lock cylinder and 4 green key lock cylinders is set on the vehicle. A protective cabinet door is set at the hydrogen filling port of the locomotive hydrogen fuel cell hydrogen storage system, and the door is opened by the operator using a green key before the locomotive is refueled. At the same time, the high-voltage electrical cabinet, converter cabinet and lithium battery cabinet on the locomotive are opened by the green key during maintenance. The electric key lock cylinder and the four green key lock cylinders in the key box are interlocked with a mechanical connecting rod. When the locomotive is in daily use, the locomotive electric key lock cylinder is keyless and the connecting rod is in position 1. At this time, the green key lock cylinder is restricted from rotating by the connecting rod, and the green key cannot be pulled out; when the locomotive is parked, the locomotive electric key is inserted into the locomotive electric key lock cylinder in the key box and is in the "locked" position, the connecting rod is in position 2. At this time, the green key lock cylinder is no longer restricted from rotating by the connecting rod, and the green key can be pulled out. At the same time, after any green key is taken out, the mechanical connecting rod will always be in position 2. At this time, the locomotive electric key lock cylinder is restricted from rotating by the connecting rod, and the locomotive electric key cannot be pulled out.

[0082] Embodiment 2

[0083] Based on the above embodiments, an embodiment of the present disclosure provides a locomotive, comprising the safety interlocking structure described in any of the above embodiments.

[0084] The scheme of the present application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the description of each embodiment has its own emphasis. For the part that is not described in detail in a certain embodiment, refer to the relevant description of other embodiments. Those skilled in the art should also know that the actions and modules involved in the description are not necessarily required for the present application. In addition, it can be understood that the steps in the method of the embodiment of the present application can be adjusted in order, merged and deleted according to actual needs, and the modules in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs.

[0085] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A safety interlock structure, characterized in that: include: Safety interlock module, key box electric key module and cabinet door lock core module; among which, The cabinet door lock core assembly module comprises a cabinet door key lock core switch and a lock core circuit breaker, wherein the first end of the cabinet door key lock core switch is used to connect to the first pole of the locomotive power supply, the second end of the cabinet door key lock core switch is connected to the first end of the coil of the lock core circuit breaker, the cabinet door key lock core switch is used to disconnect when the functional lock core of the key box is rotated to the pull-out position and to close when the functional lock core is rotated to the locking position, the second end of the coil of the lock core circuit breaker is connected to the second pole of the locomotive power supply, the first end of the switch of the lock core circuit breaker is connected to the first pole of the safety interlock module, and the second end of the switch of the lock core circuit breaker is connected to the second pole of the safety interlock module; When the coil of the lock core circuit breaker is powered on, the first end of the switch of the lock core circuit breaker and the second end of the switch of the lock core circuit breaker are closed, and when the coil of the lock core circuit breaker is powered off, the first end of the switch of the lock core circuit breaker and the second end of the switch of the lock core circuit breaker are disconnected; The key box electric key module is connected to the safety interlock module, and is used to lock the electric key in the electric key lock cylinder of the key box when the first end of the switch of the lock core circuit breaker and the second end of the switch of the lock core circuit breaker are disconnected, and to release the electric key in the electric key lock cylinder when the first end of the switch of the lock core circuit breaker and the second end of the switch of the lock core circuit breaker are closed, wherein the electric key in the key box is the electric key for starting the locomotive.

2. The structure according to claim 1, characterized in that: The cabinet door lock core group module at least includes a hydrogen fuel cell cabinet circuit; The hydrogen fuel cell cabinet circuit includes a first key lock cylinder switch and a first circuit breaker, the cabinet door key lock cylinder switch includes the first key lock cylinder switch, the lock cylinder circuit breaker includes the first circuit breaker, the first end of the first key lock cylinder switch is used to connect to the first pole of the locomotive power supply, the second end of the first key lock cylinder switch is connected to the first end of the coil of the first circuit breaker, the second end of the coil of the first circuit breaker is connected to the second pole of the locomotive power supply, the first end of the switch of the first circuit breaker is connected to the first pole of the safety interlock module, and the second end of the switch of the first circuit breaker is connected to the second pole of the safety interlock module.

3. The structure according to claim 1, characterized in that: The cabinet door lock core group module at least includes a lithium battery cabinet circuit; The lithium battery cabinet circuit includes a second key lock cylinder switch and a second circuit breaker, the cabinet door key lock cylinder switch includes the second key lock cylinder switch, the lock cylinder circuit breaker includes the second circuit breaker, the first end of the second key lock cylinder switch is used to connect to the first pole of the locomotive power supply, the second end of the second key lock cylinder switch is connected to the first end of the coil of the second circuit breaker, the second end of the coil of the second circuit breaker is connected to the second pole of the locomotive power supply, the first end of the switch of the second circuit breaker is connected to the first pole of the safety interlock module, and the second end of the switch of the second circuit breaker is connected to the second pole of the safety interlock module.

4. The structure according to claim 1, characterized in that The cabinet door lock core group module at least includes a high-voltage electrical cabinet circuit; The high-voltage electrical cabinet circuit includes a third key lock cylinder switch and a third circuit breaker, the cabinet door key lock cylinder switch includes the third key lock cylinder switch, the lock cylinder circuit breaker includes the third circuit breaker, the first end of the third key lock cylinder switch is used to connect the first pole of the locomotive power supply, the second end of the third key lock cylinder switch is connected to the first end of the coil of the third circuit breaker, the second end of the coil of the third circuit breaker is connected to the second pole of the locomotive power supply, the first end of the switch of the third circuit breaker is connected to the first pole of the safety interlock module, and the second end of the switch of the third circuit breaker is connected to the second pole of the safety interlock module.

5. The structure according to claim 1, characterized in that The cabinet door lock core group module at least includes an AC cabinet circuit; The AC cabinet circuit includes a fourth key lock cylinder switch and a fourth circuit breaker, the cabinet door key lock cylinder switch includes the fourth key lock cylinder switch, the lock cylinder circuit breaker includes the fourth circuit breaker, the first end of the fourth key lock cylinder switch is used to connect to the first pole of the locomotive power supply, the second end of the fourth key lock cylinder switch is connected to the first end of the coil of the fourth circuit breaker, the second end of the coil of the fourth circuit breaker is connected to the second pole of the locomotive power supply, the first end of the switch of the fourth circuit breaker is connected to the first pole of the safety interlock module, and the second end of the switch of the fourth circuit breaker is connected to the second pole of the safety interlock module.

6. The structure according to claim 1, characterized in that The cabinet door lock core group module includes a hydrogen fuel cell cabinet circuit, a lithium battery cabinet circuit, a high-voltage electrical cabinet circuit and an AC cabinet circuit; the hydrogen fuel cell cabinet circuit includes a first key lock core switch and a first circuit breaker, the lithium battery cabinet circuit includes a second key lock core switch and a second circuit breaker, the high-voltage electrical cabinet circuit includes a third key lock core switch and a third circuit breaker, the AC cabinet circuit includes a fourth key lock core switch and a fourth circuit breaker, the cabinet door key lock core switch includes the first key lock core switch, the lock core circuit breaker includes the first circuit breaker, the cabinet door key lock core switch includes the second key lock core switch, the lock core circuit breaker includes the second circuit breaker, the cabinet door key lock core switch includes the third key lock core switch, the lock core circuit breaker includes the third circuit breaker, the cabinet door key lock core switch includes the fourth key lock core switch, and the lock core circuit breaker includes the fourth circuit breaker; The first end of the first key lock cylinder switch is used to connect to the first pole of the locomotive power supply, the second end of the first key lock cylinder switch is connected to the first end of the coil of the first circuit breaker, the second end of the coil of the first circuit breaker is connected to the first end of the second key lock cylinder switch, the first end of the switch of the first circuit breaker is connected to the first pole of the safety interlock module, and the second end of the switch of the first circuit breaker is connected to the first end of the switch of the second circuit breaker; The second end of the second key lock cylinder switch is connected to the first end of the coil of the second circuit breaker, the second end of the coil of the second circuit breaker is connected to the first end of the third key lock cylinder switch, and the second end of the switch of the second circuit breaker is connected to the first end of the switch of the third circuit breaker; The second end of the third key lock cylinder switch is connected to the first end of the coil of the third circuit breaker, the second end of the coil of the third circuit breaker is connected to the first end of the fourth key lock cylinder switch, and the second end of the switch of the third circuit breaker is connected to the first end of the switch of the fourth circuit breaker; The second end of the fourth key lock cylinder switch is connected to the first end of the coil of the fourth circuit breaker, the second end of the coil of the fourth circuit breaker is connected to the second pole of the locomotive power supply, and the second end of the switch of the fourth circuit breaker is connected to the second pole of the safety interlock module.

7. The structure according to claim 1, characterized in that The structure also includes a main circuit breaker and a traction motor; The main circuit breaker is used to connect the battery, and the main circuit breaker is connected to the safety interlock module; The traction motor is connected to the main circuit breaker.

8. The structure according to claim 7, characterized in that The structure also includes an operating table lock core, which is used to insert an electric key for starting the locomotive. The main circuit breaker is connected to the operating table lock core. The main circuit breaker is used to be turned on when the lock core of the operating table is rotated to the position of starting the locomotive, and to be turned off when the lock core of the operating table is rotated to the position of stopping the locomotive.

9. The structure according to claim 7, characterized in that The structure also includes an electric key lock cylinder and a functional lock cylinder group, and the electric key lock cylinder and the functional lock cylinder group are installed in the same key box; The electric key lock cylinder is arranged on the outside of the locomotive, and the electric key for starting the locomotive is inserted into the electric key lock cylinder; The functional lock core group is arranged on the outside of the locomotive, the functional lock core group is connected to the cabinet door lock core group module, and the cabinet door key lock core switch is used to close when the functional lock core group is turned to the locking position.

10. A locomotive, characterized in that: Including the safety interlock structure described in any one of claims 1 to 9.

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