WO2020177262A1

WO2020177262A1 - Changeover switch control apparatus, changeover switch and rail vehicle

Info

Publication number: WO2020177262A1
Application number: PCT/CN2019/096528
Authority: WO
Inventors: 李鹤群; 姜涛; 李岩; 任宝兵; 姜静; 侯朋岐; 张小玲
Original assignee: 中车大连电力牵引研发中心有限公司
Priority date: 2019-03-04
Filing date: 2019-07-18
Publication date: 2020-09-10
Also published as: CN111645708A

Abstract

Disclosed are a changeover switch control apparatus (200), a changeover switch and a rail vehicle. The changeover switch control apparatus (200) comprises a first trigger button (201), a first control circuit (202), a second trigger button (203), a second control circuit (204) and a drive device (205). The first trigger button (201) is connected to the first control circuit (202), and the first control circuit (202) is connected to the drive device (205); the second trigger button (203) is connected to the second control circuit (204), and the second control circuit (204) is connected to the drive device (205); the drive device (205) is connected to the changeover switch; when the first trigger button (201) is activated, the first control circuit (202) controls the drive device (205) to drive a disconnector of the changeover switch to rotate in a first direction to switch to a target gear; and when the second trigger button (203) is activated, the second control circuit (204) controls the drive device (205) to drive the disconnector of the changeover switch to rotate in a second direction to switch to a target gear, wherein the second direction is opposite to the first direction. The changeover switch control apparatus (200) can improve operation efficiency.

Description

Transfer switch control device, transfer switch and rail vehicle

Technical field

The embodiment of the present invention relates to the technical field of rail transportation, and in particular to a transfer switch control device, a transfer switch and a rail vehicle.

Background technique

During normal operation and maintenance of rail transit vehicles, the power supply mode of the train needs to be set. For example, when the train is operating normally, the input front end of the traction drive system and the auxiliary power system input front end are connected to the pantograph or current receiver of the train. When the train is under maintenance, the input front end of the traction drive system and the auxiliary power system input front end are grounded. When the train is in the warehouse, the input front end of the auxiliary power system is connected to the workshop power supply, and the input front end of the traction drive system is suspended. Therefore, there is usually a switch in the high-voltage electrical box of the train to switch the power supply mode.

At present, the transfer switch is usually a manual transfer switch, as shown in Fig. 1, the shift of the gear position is realized by operating the operating handle of the transfer switch by the staff.

However, the inventor found that this kind of manual transfer switch is very inefficient due to manual operation.

Summary of the invention

The invention provides a transfer switch control device, a transfer switch and a rail vehicle to solve the problem of low switching efficiency of the transfer switch in the prior art.

In a first aspect, the present invention provides a transfer switch control device, including:

A first trigger button, a first control circuit, a second trigger button, a second control circuit and a driving device;

The first trigger button is connected to the first control circuit, and the first control circuit is connected to the driving device;

The second trigger button is connected to the second control circuit, and the second control circuit is connected to the driving device;

The driving device is connected with the transfer switch;

When the first trigger button is activated, the first control circuit controls the driving device to drive the switch of the changeover switch to rotate in a first direction and switch to a target gear;

When the second trigger button is activated, the second control circuit controls the drive device to drive the switch of the changeover switch to rotate in a second direction to switch to a target gear, wherein the second direction is the The opposite of the first direction.

In a possible implementation manner, the first control circuit includes: a first contactor, a third gear normally closed contact, and a second gear first normally closed contact;

The first contactor includes a first coil, a first main contact, a second main contact, and a first normally open contact;

One end of the first main contact is connected to the negative pole of the driving power source, the other end of the first main contact is connected to the first end of the driving device, and one end of the second main contact is connected to the The positive electrode of the driving power source, and the other end of the second main contact is connected to the second end of the driving device;

The first coil, the third gear normally closed contact, the second gear first normally closed contact and the first normally open contact are connected in series, and the first trigger button is connected in series The first normally closed contact of the second gear and the first normally open contact are connected in parallel;

The first coil is connected to the negative pole of the control power supply, and the first trigger button and the first normally open contact are connected to the positive pole of the control power supply.

In a possible implementation manner, the second control circuit includes: a second contactor, a second normally closed contact in the second gear, and a normally closed contact in the first gear;

The second contactor includes a second coil, a third main contact, a fourth main contact, and a second normally open contact;

One end of the third main contact is connected to the positive pole of the driving power source, the other end of the third main contact is connected to the first end of the driving device, and one end of the fourth main contact is connected to The negative electrode of the driving power source, and the other end of the fourth main contact is connected to the second end of the driving device;

The second coil, the first gear normally closed contact, the second gear second normally closed contact, and the second normally open contact are connected in series, and the second trigger button is connected in series The second normally closed contact of the second gear and the second normally open contact are connected in parallel;

The second coil is connected to the negative pole of the control power supply, and the second trigger button and the second normally open contact are connected to the positive pole of the control power supply.

In a possible implementation manner, the first contactor further includes a first normally closed contact, and the first normally closed contact is connected in series with the second control circuit.

In a possible implementation manner, the second contactor further includes a second normally closed contact, and the second normally closed contact is connected in series with the first control circuit.

In a possible implementation manner, the changeover switch includes a first gear, a second gear, and a third gear; the first gear is linked with the first gear normally closed contact, and the first gear The second gear is linked with the first normally closed contact of the second gear and the second normally closed contact of the second gear, and the third gear is linked with the normally closed contact of the third gear.

In a second aspect, an embodiment of the present invention provides a transfer switch, including the transfer switch control device according to the first aspect of the embodiment of the present invention.

In a possible implementation manner, the changeover switch includes three gear positions, wherein the first gear position is a workshop gear position, the second gear position is a grounded gear position, and the third gear position is a normal gear position;

The first gear is linked with a first monitoring contact, the second gear is linked with a second monitoring contact, and the third gear is linked with a third monitoring contact;

The first monitoring contact, the second monitoring contact and the third monitoring contact are respectively connected to the monitoring system of the rail vehicle.

In a possible implementation manner, the first port of the transfer switch is connected to the pantograph or current receiver of the rail vehicle, and the second port of the transfer switch is connected to the pantograph or current receiver of the rail vehicle. The third port of the transfer switch is connected to the DC input end of the first traction inverter of the rail vehicle, and the fourth port of the transfer switch is connected to the DC input end of the second traction inverter of the rail vehicle. The input end is connected, the fifth port of the transfer switch is connected to the DC input end of the first auxiliary inverter of the rail vehicle, and the sixth port of the transfer switch is connected to the first auxiliary inverter of the rail vehicle Connected to the DC input end of the transfer switch, the seventh port of the transfer switch is connected to the workshop power supply; the eighth port of the transfer switch is connected to the grounding device of the rail vehicle;

The first gear is connected to the seventh port;

The second gear is connected to the eighth port;

The third gear is respectively connected to the first port and the second port.

In a third aspect, an embodiment of the present invention provides a rail vehicle including the transfer switch according to the second aspect of the embodiment of the present invention.

In the transfer switch control device, transfer switch and rail vehicle provided by the embodiments of the present invention, the transfer switch control device activates the first trigger button to enable the first control circuit to control the driving device to drive the switch of the transfer switch to rotate in the first direction to the target gear By activating the second trigger button, the second control circuit controls the drive device to drive the switch of the switch to rotate to the target gear in the second direction, so as to realize the automatic switch of the switch, without the need for staff to operate the switch The operating handle is simple and convenient to operate and improve efficiency.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor.

Figure 1 is a schematic diagram of the structure of a transfer switch in the prior art;

2 is a schematic structural diagram of a transfer switch control device provided by an embodiment of the present invention;

Fig. 3 is a circuit diagram 1 of a switch control device provided by an embodiment of the present invention;

4 is a second circuit diagram of the transfer switch control device provided by the embodiment of the present invention;

Figure 5 is a main circuit diagram of a transfer switch provided by an embodiment of the present invention;

Fig. 6 is a schematic structural diagram of a transfer switch provided by an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, but not necessarily Describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present invention described herein can be implemented in a sequence other than those illustrated or described herein, for example. In addition, the terms "include" and "have" and any variations of them are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to the clearly listed Those steps or units may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or equipment.

Please refer to Figure 1. Figure 1 is a schematic structural diagram of a transfer switch in the prior art. As shown in Figure 1, the transfer switch is usually composed of three gears. The first gear is the workshop gear, that is, the train is in the state of the warehouse. The second gear is the grounding gear, that is, the train is under maintenance, and the third gear is the normal gear, that is, the train is in normal operation. In the first gear, the input front end of the auxiliary power supply system is connected to the workshop power supply, so that the train absorbs electric energy from the workshop power supply to provide an energy source for the auxiliary power system. The input front end of the traction drive system is suspended, and the pantograph or current receiver of the train is suspended. In the second gear, the input front end of the auxiliary power system and the traction drive system is grounded, so that the pantograph or current receiver of the train is suspended in the air to prevent the maintenance personnel from getting an electric shock when the equipment is being repaired. In the third gear, the input front end of the auxiliary power system and the traction drive system is connected to the pantograph or current receiver of the train, so that the train can absorb electric energy from the catenary or the third rail to provide the auxiliary power system and the traction drive system. Energy source.

The existing transfer switch is usually a manual transfer switch, and a worker needs to rotate the operating handle of the transfer switch to switch gears. For example, if the operating handle rotates counterclockwise, the gear is switched from the normal gear to the grounded gear and then to the workshop gear, and the operating handle is rotated clockwise, the gear is switched from the workshop gear to the grounded gear before switching to the normal gear.

At present, rail transit vehicles are usually equipped with multiple transfer switches. Since the shift switch of the transfer switch requires manual operation, the operation steps are complicated and the efficiency is low. In addition, due to improper operation, it is easy to cause the failure of multiple transfer switches on the same train. Inconsistent gears pose a greater safety risk.

The embodiment of the present invention provides a transfer switch control device to realize automatic switching of the shift switch position.

The technical solutions of the present invention will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

Please refer to FIG. 2, which is a schematic structural diagram of a transfer switch control device provided by an embodiment of the present invention. As shown in FIG. 2, the transfer switch control device 200 of this embodiment includes: a first trigger button 201 and a first control circuit 202 , The second trigger button 203, the second control circuit 204 and the driving device 205. The first trigger button 201 is connected to the first control circuit 202, and the first control circuit 202 is connected to the driving device 205. The second trigger button 203 is connected to the second control circuit 204, and the second control circuit 204 is connected to the driving device 205. The driving device 205 is connected to the changeover switch.

When the first trigger button 201 is activated, the first control circuit 202 controls the driving device 205 to drive the switch of the switch to rotate in the first direction to switch to the target gear. When the second trigger button 203 is activated, the second control circuit 204 controls the driving device 205 to drive the switch of the switch to rotate in the second direction to switch to the target gear. Wherein, the second direction is the opposite direction of the first direction.

In the embodiment of the present invention, the driving device 205 is connected to the driving power source, and the driving power source supplies power to the driving device 205, and the first trigger button 201, the first control circuit 202, the second trigger button 203 and the second control circuit 204 are connected to control The power supply is controlled by the power supply to supply power to the first trigger button 201, the first control circuit 202, the second trigger button 203 and the second control circuit 204.

The driving device 205 is a driving motor, which may be a DC motor, for example, the driving device 205 is a brushless DC motor. The driving device 205 is connected to the transfer switch, for example, the driving device 205 is connected to the shaft of the transfer switch. The drive device 205 drives the switch of the switch to rotate to realize the shift of gears.

The first trigger button 201 and the second trigger button 203 can be arranged in the driver's cab of the train, and the driver can switch gears in the driver's cab without getting off the train. The working environment is safe and time saving. It should be understood that the first trigger button 201 and the second trigger button 203 may also be arranged in other positions, which are not specifically limited in the embodiment of the present invention.

When the first trigger button 201 is activated, the first control circuit 202 controls the driving device 205 to drive the switch of the switch to rotate in the first direction to switch to the target gear. For example, the gear positions of the changeover switch are the first gear, the second gear, and the third gear in the first direction. When the first trigger button 201 is activated, the first control circuit 202 controls the driving device 205 to move along the first direction. When rotating, the drive device 205 drives the switch of the changeover switch to switch from the first gear to the second gear, or from the second gear to the third gear, or from the first gear to the third gear.

When the second trigger button 203 is activated, the second control circuit 204 controls the driving device 205 to drive the switch of the switch to rotate in the second direction to switch to the target gear. For example, when the second trigger button 203 is activated, the second control circuit 204 controls the drive device 205 to rotate in the second direction, and the drive device 205 drives the switch of the switch to switch from the third gear to the second gear, or from the third gear to the second gear. The second gear is switched to the first gear, or the third gear is switched to the first gear.

The transfer switch control device 200 in the embodiment of the present invention activates the first trigger button 201, so that the first control circuit 202 controls the driving device 205 to drive the switch of the transfer switch to rotate in the first direction to the target gear position, and by activating the second trigger The button 203 enables the second control circuit 204 to control the drive device 205 to drive the switch of the transfer switch to rotate to the target gear in the second direction, so as to realize the automatic switch of the transfer switch, without the need for staff to operate the operating handle of the transfer switch. The operation is simple and convenient, and the efficiency is improved.

Please refer to FIG. 3, which is a circuit diagram 1 of a transfer switch control device provided by an embodiment of the present invention. As shown in FIG. 3, the first control circuit 202 of this embodiment includes: a first contactor, a third gear normally closed Contact S3 and the first normally closed contact S4 in the second gear.

The first contactor includes: a first coil K11, a first main contact K12, a second main contact K13, and a first normally open contact K14.

One end of the first main contact K12 is connected to the negative electrode DC1- of the driving power supply, the other end of the first main contact K12 is connected to the first end M1 of the driving device, and one end of the second main contact K13 is connected to the positive electrode of the driving power supply DC1+, the other end of the second main contact K13 is connected to the second end M2 of the driving device.

The first coil K11, the third gear normally closed contact S3, the second gear first normally closed contact S4 and the first normally open contact K14 are connected in series, and the first trigger button S1 is connected in series with the second gear The first normally closed contact S4 and the first normally open contact K14 are connected in parallel.

The first coil K11 is connected to the negative pole DC2- of the control power supply, and the first trigger button S1 and the first normally open contact K11 are connected to the positive pole DC2+ of the control power supply.

In the embodiment of the present invention, the third gear normally closed contact S3 is in an open state when the transfer switch is in the third gear, and is in a closed state when the transfer switch is in other gears. The first normally closed contact S4 of the second gear is in an open state when the transfer switch is in the second gear, and is in a closed state when the transfer switch is in other gears.

When the first coil K11 is not energized, the first main contact K12, the second main contact K13, and the first normally open contact K14 are in a disconnected state. When the first coil K11 is energized, the first main contact K12, The second main contact K13 and the first normally open contact K14 are in a closed state.

The gear positions of the change-over switch are the first gear, the second gear and the third gear in sequence along the first direction. In the following, the implementation of the switch from the first gear to the second gear, from the second gear to the third gear, and from the first gear directly to the third gear will be described in detail below.

When the switch is in the first gear, the normally closed contact S3 of the third gear is in the closed state. When the first trigger button S1 is pressed and then released, the first coil K11 is energized, and the first main contact K12, The two main contacts K13 and the first normally open contact K14 are closed, the second terminal M2 of the driving device inputs a high level, the first terminal M1 of the driving device inputs a low level, the driving device rotates in the first direction, and the first main The contact K12, the second main contact K13, and the first normally open contact K14 are in a self-holding state, that is, a closed state. When the switch of the changeover switch is switched to the second gear, the first normally closed contact S4 of the second gear is disconnected, the first coil K11 loses power, the first main contact K12, the second main contact K13 and the A normally open contact K14 is disconnected, the drive equipment is stopped, the switch of the switch is in the second gear, and the first gear is switched to the second gear.

When the switch is in the second gear, the normally closed contact S3 of the third gear is in the closed state, and the first normally closed contact S4 of the second gear is in the open state. When the first trigger button S1 is pressed, the A coil K11 is energized, the first main contact K12, the second main contact K13 and the first normally open contact K14 are closed, the second terminal M2 of the driving device inputs a high level, and the first terminal M1 of the driving device inputs a low voltage The drive device drives the switch of the switch to rotate in the first direction. When the switch of the switch leaves the second gear, the first normally closed contact S4 of the second gear is in the closed state. At this time, the first normally closed contact is released. The button S1 is triggered, the first main contact K12, the second main contact K13 and the first normally open contact K14 are in a self-holding state, that is, a closed state. When the switch of the switch is switched to the third gear, the normally closed contact S3 of the third gear is disconnected, the first coil K11 loses power, the first main contact K12, the second main contact K13 and the first normal The open contact K14 is disconnected, the drive equipment is stopped, the switch of the switch is in the third gear, and the second gear is switched to the third gear.

When the switch is in the first gear, the normally closed contact S3 of the third gear is in the closed state. When the first trigger button S1 is pressed, the first coil K11 is energized, the first main contact K12, the second main contact Point K13 and the first normally open contact K14 are closed, the second terminal M2 of the driving device inputs a high level, the first terminal M1 of the driving device inputs a low level, the driving device rotates in the first direction, and the first main contact K12 , The second main contact K13 and the first normally open contact K14 are in a self-holding state, that is, a closed state. When the switch of the switch has passed the second gear, release the first trigger button S1. When the switch of the switch is switched to the third gear, the normally closed contact S3 of the third gear is disconnected, and the first The coil K11 is de-energized, the first main contact K12, the second main contact K13 and the first normally open contact K14 are disconnected, the drive equipment is stopped, the switch of the switch is in the third gear, and the first gear switch is completed To the third gear.

As shown in FIG. 3, the second control circuit 204 of this embodiment includes: a second contactor, a second normally closed contact S5 in the second gear, and a normally closed contact S6 in the first gear.

The second contactor includes a second coil K21, a third main contact K22, a fourth main contact K23, and a second normally open contact K24.

One end of the third main contact K22 is connected to the positive DC1+ of the driving power supply, the other end of the third main contact K22 is connected to the first end M1 of the driving device, and one end of the fourth main contact K23 is connected to the negative DC of the driving power supply -, the other end of the fourth main contact K23 is connected to the second end M2 of the driving device.

The second coil K21, the first gear normally closed contact S6, the second gear second normally closed contact S5 and the second normally open contact K24 are connected in series, and the second trigger button S2 is connected in series with the second gear The second normally closed contact S5 and the second normally open contact K24 are connected in parallel.

The second coil K21 is connected to the negative pole DC2- of the control power supply, and the second trigger button S2 and the second normally open contact K24 are connected to the positive pole DC2+ of the control power supply.

In the embodiment of the present invention, the first gear normally closed contact S6 is in an open state when the transfer switch is in the first gear, and is in a closed state when the transfer switch is in other gears. The second normally closed contact S5 of the second gear is in an open state when the transfer switch is in the second gear, and is in a closed state when the transfer switch is in other gears.

When the second coil K21 is not energized, the third main contact K22, the fourth main contact K23, and the first normally open contact K24 are in a disconnected state. When the second coil K21 is energized, the third main contact K22, The fourth main contact K23 and the second normally open contact K24 are in a closed state.

The second direction is opposite to the first direction, and the gear positions of the change-over switch are the third gear, the second gear, and the first gear in the second direction. In the following, the implementation of the switch from the third gear to the second gear, from the second gear to the first gear, and from the third gear directly to the first gear will be described in detail below.

When the switch is in the third gear, the normally closed contact S6 of the first gear is in the closed state. When the second trigger button S2 is pressed and then released, the second coil K21 is energized, and the third main contact K22, The four main contacts K23 and the first normally open contact K24 are closed, the second terminal M2 of the drive device inputs a low level, the first terminal M1 of the drive device inputs a high level, and the drive device drives the switch edge of the second switch. When the direction rotates, the third main contact K22, the fourth main contact K23 and the second normally open contact K24 are in a self-holding state, that is, a closed state. When the switch of the changeover switch is switched to the second gear, the second normally closed contact S5 of the second gear is disconnected, the second coil K21 loses power, the third main contact K22, the fourth main contact K23 and the The two normally open contacts K24 are disconnected, the drive equipment is stopped, the switch of the switch is in the second gear, and the third gear is switched to the second gear.

When the switch is in the second gear, the normally closed contact S6 of the first gear is in the closed state, and the second normally closed contact S5 of the second gear is in the off state. When the second trigger button S2 is pressed, the The second coil K21 is energized, the third main contact K22, the fourth main contact K23 and the second normally open contact K24 are closed, the second terminal M2 of the drive device inputs low level, and the first terminal M1 of the drive device inputs high voltage The drive device drives the switch of the switch to rotate in the second direction. When the switch of the switch leaves the second gear, the second normally closed contact S5 of the second gear is in the closed state. At this time, the second normally closed contact is released. When the button S2 is triggered, the third main contact K22, the fourth main contact K23 and the second normally open contact K24 are in a self-holding state, that is, a closed state. When the switch of the changeover switch is switched to the first gear, the normally closed contact S6 of the first gear is disconnected, the second coil K21 loses power, the third main contact K22, the fourth main contact K23 and the second normal The open contact K24 is disconnected, the drive equipment is stopped, the switch of the switch is in the first gear, and the second gear is switched to the first gear.

When the switch is in the third gear, the normally closed contact S6 of the first gear is in the closed state. When the second trigger button S2 is pressed, the second coil K21 is energized, and the third main contact K22 and the fourth main contact Point K23 and the second normally open contact K24 are closed, the second terminal M2 of the drive device inputs a low level, the first terminal M1 of the drive device inputs a high level, and the drive device drives the switch of the switch to rotate in the second direction, The third main contact K22, the fourth main contact K23 and the second normally open contact K24 are in a self-holding state, that is, a closed state. When the switch of the switch has passed the second gear, release the second trigger button S2. When the switch of the switch is switched to the first gear, the normally closed contact S6 of the first gear is disconnected and the second The coil K21 is de-energized, the third main contact K22, the fourth main contact K23 and the second normally open contact K24 are disconnected, the drive equipment is stopped, the switch of the switch is in the first gear, and the third gear is switched. To the first gear.

In the above embodiment of the present invention, the gear position of the changeover switch can be switched by operating the first trigger button S1 and the second trigger button S2, and there is no need for staff to operate the operating handle of the changeover switch, the operation is simple and convenient, and the efficiency is improved.

Please refer to FIG. 4, which is the second circuit diagram of the transfer switch control device provided by the embodiment of the present invention. As shown in FIG. 4, the first contactor further includes a first normally closed contact K15, and the first normally closed contact K15 is connected to The second control circuit is connected in series. The second contactor also includes a second normally closed contact K25, and the second normally closed contact K25 is connected in series with the first control circuit.

In the embodiment of the present invention, when the first coil K11 is not energized, the first normally closed contact K15 is in a closed state, and when the first coil K11 is energized, the first normally closed contact K15 is in an open state. When the second coil K21 is not energized, the second normally closed contact K25 is in the closed state, and when the second coil K21 is energized, the second normally closed contact K25 is in the open state

The first normally closed contact K15 is connected in series with the second coil K21, the first gear normally closed contact S6, the second gear second normally closed contact S5 and the second normally open contact K24. The second normally closed contact K25 is connected in series with the first coil K11, the third gear normally closed contact S3, the second gear first normally closed contact S4 and the first normally open contact K14.

In the embodiment of the present invention, the first normally closed contact K15 is connected in series in the second control circuit and the second normally closed contact K25 is connected in series in the first control circuit to prevent the simultaneous activation of the first trigger button S1 and the second trigger button S2. , The switch of the switch rotates to avoid misoperation by the staff.

As an embodiment of the present invention, the switch includes a first gear, a second gear, and a third gear. The first gear is linked with the first gear normally closed contact S6, the second gear is linked with the second gear first normally closed contact S4, the second gear second normally closed contact S5, and the third gear Linked with the third gear normally closed contact S3.

In the embodiment of the present invention, when the switch is in the first gear, the first gear normally closed contact S6 is in an off state, and when the switch is in the second gear or the third gear, the first gear The normally closed contact S6 is in the closed state. When the switch is in the second gear, the first normally closed contact S4 in the second gear and the second normally closed contact S5 in the second gear are in the off state. When the switch is in the first or third gear When in position, the first normally closed contact S4 in the second gear and the second normally closed contact S5 in the second gear are in a closed state. When the switch is in the third gear, the normally closed contact S3 of the third gear is in an open state. When the switch is in the first gear or the second gear, the normally closed contact S3 of the third gear is closed status.

An embodiment of the present invention also provides a transfer switch, including the transfer switch control device as described in any one of the embodiments in FIGS. 2 to 4.

As an embodiment of the present invention, please refer to FIG. 5, which is a main circuit diagram of a transfer switch provided by an embodiment of the present invention. As shown in FIG. 5, the transfer switch includes three gear positions, and the first gear position is the workshop Gears, the second gear is the grounding gear, and the third gear is the normal gear.

The first gear is linked with the first monitoring contact, the second gear is linked with the second monitoring contact, and the third gear is linked with the third monitoring contact. The first monitoring contact, the second monitoring contact and the third monitoring contact are respectively connected to the monitoring system of the rail vehicle.

In the embodiment of the present invention, in addition to being linked with the first gear normally closed contact S6, the first gear is also linked with a first monitoring contact. The second gear is linked with the first normally closed contact of the second gear. The contact S4 and the second normally closed contact S5 of the second gear are linked with a second monitoring contact. The third gear is linked with the normally closed contact S3 of the third gear, and is also linked with A third monitoring contact linkage.

The first monitoring contact can be a normally open contact or a normally closed contact. When the first monitoring contact is a normally open contact, if the switch is in the first gear, the first monitoring contact is in the closed state, and if the switch is in the second or third gear, the first monitoring contact In a disconnected state. When the first monitoring contact is a normally closed contact, if the switch is in the first gear, the first monitoring contact is in the off state, and if the switch is in the second or third gear, the first monitoring contact is The point is closed.

The second monitoring contact can be a normally open contact or a normally closed contact. When the second monitoring contact is a normally open contact, if the switch is in the second gear, the second monitoring contact is in the closed state, and if the switch is in the first or third gear, the second monitoring contact In a disconnected state. When the second monitoring contact is a normally closed contact, if the switch is in the second gear, the second monitoring contact is in the off state, and if the switch is in the first gear or the third gear, the second monitoring contact The point is closed.

The third monitoring contact can be a normally open contact or a normally closed contact. When the third monitoring contact is a normally open contact, if the switch is in the third gear, the third monitoring contact is in the closed state, and if the switch is in the first gear or the second gear, the third monitoring contact In a disconnected state. When the third monitoring contact is a normally closed contact, if the switch is in the third gear, the third monitoring contact is in the off state, and if the switch is in the first gear or the second gear, the third monitoring contact is The point is closed.

The first monitoring contact, the second monitoring contact and the third monitoring contact are respectively connected to the monitoring system of the rail vehicle, and the monitoring system of the rail vehicle collects the first monitoring contact, the second monitoring contact and the third monitoring contact The switch status of the switch can monitor the switch position of the switch and determine whether a fault occurs according to the position of the switch.

As an embodiment of the present invention, please refer to Figures 5 and 6. Figure 6 is a schematic structural diagram of a transfer switch provided by an embodiment of the present invention. As shown in Figures 5 and 6, the first port X1 of the transfer switch is connected to the rail vehicle. The pantograph or current receiver of the switch is connected, the second port X2 of the switch is connected to the pantograph or current receiver of the rail vehicle, and the third port X3 of the switch is connected to the first traction inverter of the rail vehicle The fourth port X4 of the transfer switch is connected to the DC input end of the second traction inverter of the rail vehicle, and the fifth port X5 of the transfer switch is connected to the first auxiliary inverter of the rail vehicle. The sixth port X6 of the transfer switch is connected to the DC input end of the first auxiliary inverter of the rail vehicle, the seventh port X7 of the transfer switch is connected to the workshop power supply; the eighth port X8 of the transfer switch is connected to the Grounding device connection for rail vehicles.

The first gear is connected to the seventh port X7, the second gear is connected to the eighth port X8, and the third gear is respectively connected to the first port X1 and the second port X2.

Through the above-mentioned connection method, the rail vehicle is in a different state when the switch is in different gears.

The embodiment of the present invention also provides a rail vehicle, which includes the above-mentioned transfer switch.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand: It is still possible to modify the technical solutions described in the foregoing embodiments, or equivalently replace some or all of the technical features; these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention range.

Claims

A transfer switch control device, characterized in that it comprises:

A first trigger button, a first control circuit, a second trigger button, a second control circuit and a driving device;

The first trigger button is connected to the first control circuit, and the first control circuit is connected to the driving device;

The second trigger button is connected to the second control circuit, and the second control circuit is connected to the driving device;

The driving device is connected with the transfer switch;

When the first trigger button is activated, the first control circuit controls the driving device to drive the switch of the changeover switch to rotate in a first direction and switch to a target gear;

When the second trigger button is activated, the second control circuit controls the drive device to drive the switch of the changeover switch to rotate in a second direction to switch to a target gear, wherein the second direction is the The opposite of the first direction.
The device according to claim 1, wherein the first control circuit comprises: a first contactor, a third gear normally closed contact, and a second gear first normally closed contact;

The first contactor includes a first coil, a first main contact, a second main contact, and a first normally open contact;

One end of the first main contact is connected to the negative pole of the driving power source, the other end of the first main contact is connected to the first end of the driving device, and one end of the second main contact is connected to the The positive electrode of the driving power source, and the other end of the second main contact is connected to the second end of the driving device;

The first coil, the third gear normally closed contact, the second gear first normally closed contact and the first normally open contact are connected in series, and the first trigger button is connected in series The first normally closed contact of the second gear and the first normally open contact are connected in parallel;

The first coil is connected to the negative pole of the control power supply, and the first trigger button and the first normally open contact are connected to the positive pole of the control power supply.
The device according to claim 2, wherein the second control circuit comprises: a second contactor, a second normally closed contact in the second gear, and a normally closed contact in the first gear;

The second contactor includes a second coil, a third main contact, a fourth main contact, and a second normally open contact;

One end of the third main contact is connected to the positive pole of the driving power source, the other end of the third main contact is connected to the first end of the driving device, and one end of the fourth main contact is connected to The negative electrode of the driving power source, and the other end of the fourth main contact is connected to the second end of the driving device;

The second coil, the first gear normally closed contact, the second gear second normally closed contact, and the second normally open contact are connected in series, and the second trigger button is connected in series The second normally closed contact of the second gear and the second normally open contact are connected in parallel;

The second coil is connected to the negative pole of the control power supply, and the second trigger button and the second normally open contact are connected to the positive pole of the control power supply.
The device according to claim 2, wherein the first contactor further comprises a first normally closed contact, and the first normally closed contact is connected in series with the second control circuit.
The device according to claim 3, wherein the second contactor further comprises a second normally closed contact, and the second normally closed contact is connected in series with the first control circuit.
The device according to claim 3, wherein the switch includes a first gear, a second gear, and a third gear; the first gear and the first gear normally closed contacts The second gear is linked with the first normally closed contact of the second gear and the second normally closed contact of the second gear. The third gear is normally closed with the third gear. Closed contact linkage.
A transfer switch, characterized by comprising the transfer system switch control device according to any one of claims 1 to 6.
The transfer switch according to claim 7, wherein the transfer switch includes three gear positions, wherein the first gear position is a workshop gear position, the second gear position is a grounded gear position, and the third gear position is a normal gear position. Gear

The first gear is linked with a first monitoring contact, the second gear is linked with a second monitoring contact, and the third gear is linked with a third monitoring contact;

The first monitoring contact, the second monitoring contact and the third monitoring contact are respectively connected to the monitoring system of the rail vehicle.
The transfer switch according to claim 8, wherein the first port of the transfer switch is connected with the pantograph or current receiver of the rail vehicle, and the second port of the transfer switch is connected with the receiver of the rail vehicle. The pantograph or current receiver is connected, the third port of the transfer switch is connected to the DC input end of the first traction inverter of the rail vehicle, and the fourth port of the transfer switch is connected to the second port of the rail vehicle. The DC input end of the traction inverter is connected, the fifth port of the transfer switch is connected to the DC input end of the first auxiliary inverter of the rail vehicle, and the sixth port of the transfer switch is connected to the rail vehicle The DC input end of the first auxiliary inverter is connected, the seventh port of the transfer switch is connected to the workshop power supply; the eighth port of the transfer switch is connected to the grounding device of the rail vehicle;

The first gear is connected to the seventh port;

The second gear is connected to the eighth port;

The third gear is respectively connected to the first port and the second port.
A rail vehicle, characterized by comprising the transfer switch according to any one of claims 7 to 9.