CN111645708A - Change-over switch control device, change-over switch and rail vehicle - Google Patents
Change-over switch control device, change-over switch and rail vehicle Download PDFInfo
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- CN111645708A CN111645708A CN201910159153.3A CN201910159153A CN111645708A CN 111645708 A CN111645708 A CN 111645708A CN 201910159153 A CN201910159153 A CN 201910159153A CN 111645708 A CN111645708 A CN 111645708A
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- Prior art keywords
- gear
- contact
- change
- switch
- control circuit
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/04—Cutting off the power supply under fault conditions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L9/00—Electric propulsion with power supply external to the vehicle
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/18—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual dc motor
- H02P1/22—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual dc motor in either direction of rotation
Abstract
The embodiment of the invention provides a change-over switch control device, a change-over switch and a railway vehicle, wherein the device comprises: the device 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 with a first control circuit, and the first control circuit is connected with the driving device; the second trigger button is connected with a second control circuit, and the second control circuit is connected with the driving equipment; the driving device is connected with the change-over switch; when the first trigger button is started, the first control circuit controls the driving equipment to drive the disconnecting link of the change-over switch to rotate along the first direction and switch to a target gear; when the second trigger button is started, the second control circuit controls the driving device to drive the disconnecting link of the change-over switch to rotate along a second direction to be switched to a target gear, wherein the second direction is opposite to the first direction. The embodiment of the invention can improve the operation efficiency.
Description
Technical Field
The embodiment of the invention relates to the technical field of rail transit, in particular to a change-over switch control device, a change-over switch and a rail vehicle.
Background
When the rail transit vehicle is normally operated and maintained, a power supply mode of a train needs to be set. For example, when a train normally operates, the input front end of the traction transmission system and the input front end of the auxiliary power supply system are connected with a pantograph or a current collector of the train, when the train is maintained, the input front end of the traction transmission system and the input front end of the auxiliary power supply system are grounded, when the train is in a warehouse state, the input front end of the auxiliary power supply system is connected with a workshop power supply, and the input front end of the traction transmission system is suspended. Therefore, a change-over switch is usually provided in the high-voltage electrical box of the train to switch the power supply mode.
At present, a change-over switch is usually a manual change-over switch, and as shown in fig. 1, the change-over of the gear positions is realized by operating an operating handle of the change-over switch by a worker.
However, the inventors have found that such manual switches are inefficient due to the need to rely on manual operation.
Disclosure of Invention
The invention provides a change-over switch control device, a change-over switch and a railway vehicle, and aims to solve the problem that the gear switching efficiency of the change-over switch is low in the prior art.
In a first aspect, the present invention provides a transfer switch control apparatus comprising:
the device 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 with the first control circuit, and the first control circuit is connected with the driving device;
the second trigger button is connected with the second control circuit, and the second control circuit is connected with the driving device;
the driving equipment is connected with the change-over switch;
when the first trigger button is started, the first control circuit controls the driving device to drive the disconnecting link of the change-over switch to rotate along a first direction and switch to a target gear;
when the second trigger button is started, the second control circuit controls the driving device to drive the disconnecting link of the change-over switch to rotate along a second direction and switch to a target gear, wherein the second direction is opposite to the first direction.
In one possible implementation, the first control circuit includes: the first contactor, the third gear normally closed contact and the second gear first normally closed contact;
the first contactor comprises 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 with a negative electrode of a driving power supply, the other end of the first main contact is connected with a first end of the driving device, one end of the second main contact is connected with a positive electrode of the driving power supply, and the other end of the second main contact is connected with a 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 parallel with the second gear first normally closed contact and the first normally open contact which are connected in series;
the first coil is connected to the negative electrode of the control power supply, and the first trigger button and the first normally open contact are connected to the positive electrode of the control power supply.
In one possible implementation, the second control circuit includes: the second contactor, a second gear second normally closed contact and a first gear normally closed contact;
the second contactor comprises 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 electrode of the driving power supply, the other end of the third main contact is connected with the first end of the driving device, one end of the fourth main contact is connected to the negative electrode of the driving power supply, and the other end of the fourth main contact is connected with the second end of the driving device;
the second coil, the first gear normally closed contact, the second gear normally closed contact and the second normally open contact are connected in series, and the second trigger button is connected in parallel with the second gear normally closed contact and the second normally open contact which are connected in series;
the second coil is connected to the negative electrode of the control power supply, and the second trigger button and the second normally open contact are connected to the positive electrode 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 one possible implementation, 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 one possible implementation manner, the change-over switch includes a first gear, a second gear and a third gear; the first gear and the first gear normally closed contact are linked, the second gear and the second gear first normally closed contact and the second gear second normally closed contact are linked, and the third gear normally closed contact are linked.
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 one possible implementation manner, the change-over switch includes three gears, wherein the first gear is a vehicle gear, the second gear is a ground gear, and the third gear is a 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 with a monitoring system of the rail vehicle.
In one possible implementation, a first port of the transfer switch is connected to a pantograph or a current collector of a rail vehicle, a second port of the transfer switch is connected to a pantograph or a current collector of the rail vehicle, a third port of the transfer switch is connected to a dc input of a first traction inverter of the rail vehicle, a fourth port of the transfer switch is connected to a dc input of a second traction inverter of the rail vehicle, a fifth port of the transfer switch is connected to a dc input of a first auxiliary inverter of the rail vehicle, a sixth port of the transfer switch is connected to a dc input of a first auxiliary inverter of the rail vehicle, and a seventh port of the transfer switch is connected to a power plant; the eighth port of the change-over switch is connected with a grounding device of the railway vehicle;
the first gear is connected with the seventh port;
the second gear is connected with the eighth port;
the third gear is respectively connected with 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.
According to the change-over switch control device, the change-over switch and the rail vehicle provided by the embodiment of the invention, the change-over switch control device enables the first control circuit to control the driving equipment to drive the disconnecting link of the change-over switch to rotate to the target gear along the first direction by starting the first trigger button, and enables the second control circuit to control the driving equipment to drive the disconnecting link of the change-over switch to rotate to the target gear along the second direction by starting the second trigger button, so that the automatic switching of the gear of the change-over switch is realized, a worker does not need to operate an operating handle of the change-over switch, the operation is simple and convenient, and the efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a transfer switch in the prior art;
fig. 2 is a schematic structural diagram of a transfer switch control device according to an embodiment of the present invention;
fig. 3 is a first circuit diagram of a transfer switch control device according to an embodiment of the present invention;
fig. 4 is a second circuit diagram of a transfer switch control device according to an embodiment of the present invention;
FIG. 5 is a main circuit diagram of a transfer switch according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a transfer switch according to 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 with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a change-over switch in the prior art, as shown in fig. 1, the change-over switch generally consists of three gears, a first gear is a train gear, i.e., a train is in a garage state, a second gear is a ground gear, i.e., the train is in a maintenance state, and a third gear is a normal gear, i.e., the train is in a normal operation state. When the train is in a first gear, the input front end of the auxiliary power supply system is connected with a workshop power supply, so that the train absorbs electric energy from the workshop power supply and provides an energy source for the auxiliary power supply system, the input front end of the traction transmission system is suspended, and a pantograph or a current collector of the train is suspended. When the second gear is used, the input front ends of the auxiliary power supply system and the traction transmission system are grounded, so that a pantograph or a current collector of the train is suspended, and electric shock accidents caused by the fact that maintenance personnel are subjected to maintenance of equipment are prevented. And when the train is in a third gear, the input front ends of the auxiliary power supply system and the traction transmission system are connected with a pantograph or a current collector of the train, so that the train absorbs electric energy from a contact net or a third rail and provides an energy source for the auxiliary power supply system and the traction transmission system.
The existing transfer switch is usually a manual transfer switch, and a worker is required to rotate an operating handle of the transfer switch to realize the switching of gears. For example, the operating handle rotates anticlockwise, the gears are switched to the grounding gears from the normal gears and then are switched to the workshop gears, the operating handle rotates clockwise, and the gears are switched to the grounding gears from the workshop gears and are switched to the normal gears.
At present, a plurality of change-over switches are usually arranged on a rail transit vehicle, manual operation is needed for gear switching of the change-over switches, the problems of complex operation steps and low efficiency exist, and due to improper operation, the situation that gears of the change-over switches of the same train are inconsistent easily caused exists great safety risks.
The embodiment of the invention provides a change-over switch control device, which is used for realizing automatic switching of the gear of a change-over switch.
The technical solution of the present invention will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a transfer switch control device according to an embodiment of the present invention, and as shown in fig. 2, the transfer switch control device 200 of the embodiment includes: a first trigger button 201, a first control circuit 202, a second trigger button 203, a second control circuit 204 and a driving device 205. The first trigger button 201 is connected to a first control circuit 202, and the first control circuit 202 is connected to a driving device 205. The second trigger button 203 is connected to a second control circuit 204, and the second control circuit 204 is connected to a 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 knife switch of the change-over 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 knife switch of the change-over switch to rotate in the second direction to switch to the target gear. Wherein the second direction is opposite to the first direction.
In the embodiment of the present invention, the driving device 205 is connected to a driving power supply, the driving power supply supplies power to the driving device 205, the first trigger button 201, the first control circuit 202, the second trigger button 203 and the second control circuit 204 are connected to a control power supply, and the control power supply supplies 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 change-over switch, for example, the driving device 205 is connected to a rotating shaft of the change-over switch. The driving device 205 drives the knife switch of the change-over switch to rotate, so that the gear is switched.
The first trigger button 201 and the second trigger button 203 can be arranged in a cab of a train, a driver can perform gear switching operation in the cab, the operation of getting off the train is not needed, the operation environment is safe, and the time is saved. It should be understood that the first trigger button 201 and the second trigger button 203 may be disposed at other positions, and the embodiment of the present invention is not particularly limited.
When the first trigger button 201 is activated, the first control circuit 202 controls the driving device 205 to drive the knife switch of the change-over switch to rotate in the first direction to switch to the target gear. For example, the gear of the change-over switch is sequentially a first gear, a second gear and a third gear along the first direction, when the first trigger button 201 is activated, the first control circuit 202 controls the driving device 205 to rotate along the first direction, and the driving device 205 drives the knife switch of the change-over switch to be switched 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 knife switch of the change-over 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 driving device 205 to rotate in the second direction, and the driving device 205 drives the knife switch of the switch to switch from the third gear to the second gear, or from the second gear to the first gear, or from the third gear to the first gear.
In the change-over switch control device 200 of the embodiment of the present invention, the first trigger button 201 is activated to enable the first control circuit 202 to control the driving device 205 to drive the knife switch of the change-over switch to rotate to the target gear along the first direction, and the second trigger button 203 is activated to enable the second control circuit 204 to control the driving device 205 to drive the knife switch of the change-over switch to rotate to the target gear along the second direction, so as to implement automatic switching of the gear of the change-over switch, without the need of operating the operating handle of the change-over switch by the operator, which is simple and convenient to operate, and improves the efficiency.
Referring to fig. 3, fig. 3 is a circuit diagram of a first transfer switch control device according to an embodiment of the present invention, and as shown in fig. 3, a first control circuit 202 of the embodiment includes: the first contactor, the third gear normally closed contact S3 and the second gear first normally closed contact S4.
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 with the negative pole DC 1-of the driving power supply, the other end of the first main contact K12 is connected with the first end M1 of the driving device, one end of the second main contact K13 is connected with the positive pole DC1+ of the driving power supply, and the other end of the second main contact K13 is connected with 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 parallel with the second gear first normally closed contact S4 and the first normally open contact K14 which are connected in series.
The first coil K11 is connected with the negative DC 2-of the control power supply, and the first trigger button S1 and the first normally open contact K11 are connected with the positive DC2+ of the control power supply.
In the embodiment of the invention, the third-gear normally-closed contact S3 is in the open state when the change-over switch is in the third gear, and is in the closed state when the change-over switch is in the other gear. The second-gear first normally-closed contact S4 is in an open state when the change-over switch is in the second gear position and is in a closed state when the change-over switch is in the other gear position.
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 an open state, and 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 of the change-over switch is sequentially a first gear, a second gear and a third gear along the first direction. The following describes a specific implementation manner of the change-over switch for switching from the first gear to the second gear, from the second gear to the third gear, and from the first gear to the third gear directly.
When the change-over switch is in a first gear, the normally closed contact S3 of a third gear is in a closed state, after the first trigger button S1 is pressed and loosened, the first coil K11 is electrified, the first main contact K12, the second main contact K13 and the first normally open contact K14 are closed, the second end M2 of the driving device inputs a high level, the first end M1 of the driving device inputs a low level, the driving device rotates along a 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, namely the closed state. When the knife switch of the change-over switch is switched to a second gear, the first normally closed contact S4 of the second gear is disconnected, the first coil K11 is powered off, the first main contact K12, the second main contact K13 and the first normally open contact K14 are disconnected, the driving equipment is stopped, the knife switch of the change-over switch is in the second gear, and the first gear is switched to the second gear.
When the change-over switch is in the second gear, the third-gear normally-closed contact S3 is in a closed state, the second-gear first normally-closed contact S4 is in an open state, after the first trigger button S1 is pressed, the first 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 end M2 of the driving device inputs a high level, the first end M1 of the driving device inputs a low level, the driving device drives the knife switch of the change-over switch to rotate along the first direction, when the knife switch of the change-over switch leaves the second gear, the second-gear first normally-closed contact S4 is in a closed state, at the moment, the first trigger button S1 is released, 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, namely, the closed state. When the knife switch of the change-over switch is switched to a third gear, the third gear normally-closed contact S3 is disconnected, the first coil K11 is powered off, the first main contact K12, the second main contact K13 and the first normally-open contact K14 are disconnected, the driving equipment is stopped, the knife switch of the change-over switch is in the third gear, and the second gear is switched to the third gear.
When the change-over switch is in a first gear, the third gear normally-closed contact S3 is in a closed state, after the first trigger button S1 is pressed, the first coil K11 is electrified, the first main contact K12, the second main contact K13 and the first normally-open contact K14 are closed, the second end M2 of the driving device inputs a high level, the first end M1 of the driving device inputs a low level, the driving device rotates along a 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, namely, the closed state. When the knife switch of the change-over switch crosses the second gear, the first trigger button S1 is released, when the knife switch of the change-over switch is switched to the third gear, the third gear normally-closed contact S3 is disconnected, the first coil K11 is powered off, the first main contact K12, the second main contact K13 and the first normally-open contact K14 are disconnected, the driving equipment is stopped, the knife switch of the change-over switch is in the third gear, and the first gear is switched to the third gear.
As shown in fig. 3, the second control circuit 204 of the present embodiment includes: the second contactor, a second gear second normally closed contact S5 and a first gear normally closed contact S6.
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 with the positive pole DC1+ of the driving power supply, the other end of the third main contact K22 is connected with the first end M1 of the driving device, one end of the fourth main contact K23 is connected with the negative pole DC-of the driving power supply, and the other end of the fourth main contact K23 is connected with the second end M2 of the driving device.
The second coil K21, the first gear normally closed contact S6, the second gear normally closed contact S5 and the second normally open contact K24 are connected in series, and the second trigger button S2 is connected in parallel with the second gear normally closed contact S5 and the second normally open contact K24 which are connected in series.
The second coil K21 is connected with the negative DC 2-of the control power supply, and the second trigger button S2 and the second normally open contact K24 are connected with the positive DC2+ of the control power supply.
In the embodiment of the invention, the first-gear normally-closed contact S6 is in an open state when the change-over switch is in the first gear, and is in a closed state when the change-over switch is in the other gear. The second-gear second normally-closed contact S5 is in the open state when the change-over switch is in the second gear position and is in the closed state when the change-over switch is in the other gear position.
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 an open state, and 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 of the change-over switch is a third gear, a second gear and a first gear in sequence along the second direction. The following describes in detail the implementation of the change-over switch from the third gear to the second gear, from the second gear to the first gear, and from the third gear to the first gear directly.
When the change-over switch is in a third gear, the first gear normally-closed contact S6 is in a closed state, when the second trigger button S2 is pressed and then released, the second coil K21 is electrified, the third main contact K22, the fourth main contact K23 and the first normally-open contact K24 are closed, the second end M2 of the driving device inputs a low level, the first end M1 of the driving device inputs a high level, the driving device drives the knife switch of the change-over switch to rotate along a second direction, and the third main contact K22, the fourth main contact K23 and the second normally-open contact K24 are in a self-holding state, namely a closed state. When the knife switch of the change-over switch is switched to the second gear, the second normally closed contact S5 of the second gear is disconnected, the second coil K21 loses electricity, the third main contact K22, the fourth main contact K23 and the second normally open contact K24 are disconnected, the driving equipment is stopped, the knife switch of the change-over switch is in the second gear, and the third gear is switched to the second gear.
When the change-over switch is in the second gear, the first gear normally-closed contact S6 is in a closed state, the second gear normally-closed contact S5 is in an open state, after the second trigger button S2 is pressed, 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 end M2 of the driving device inputs a low level, the first end M1 of the driving device inputs a high level, the driving device drives the knife switch of the change-over switch to rotate in the second direction, when the knife switch of the change-over switch leaves the second gear, the second gear normally-closed contact S5 is in a closed state, at the moment, the second trigger button S2 is released, and 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, namely, in a closed state. When the knife switch of the change-over switch is switched to a 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 normally open contact K24 are disconnected, the driving equipment is stopped, the knife switch of the change-over switch is in the first gear, and the second gear is switched to the first gear.
When the change-over switch is in a third gear, the first gear normally-closed contact S6 is in a closed state, after the second trigger button S2 is pressed, the second coil K21 is electrified, the third main contact K22, the fourth main contact K23 and the second normally-open contact K24 are closed, the second end M2 of the driving device inputs a low level, the first end M1 of the driving device inputs a high level, the driving device drives the knife switch of the change-over switch to rotate along a second direction, and the third main contact K22, the fourth main contact K23 and the second normally-open contact K24 are in a self-holding state, namely a closed state. When the knife switch of the change-over switch crosses the second gear, the second trigger button S2 is released, when the knife switch of the change-over switch is switched to the first gear, the first gear normally closed contact S6 is disconnected, the second coil K21 is powered off, the third main contact K22, the fourth main contact K23 and the second normally open contact K24 are disconnected, the driving device is stopped, the knife switch of the change-over switch is in the first gear, and the third gear is switched to the first gear.
In the embodiment of the invention, the gear of the change-over switch can be switched by operating the first trigger button S1 and the second trigger button S2, so that a worker does not need to operate an operating handle of the change-over switch, the operation is simple and convenient, and the efficiency is improved.
Referring to fig. 4, fig. 4 is a circuit diagram of a second transfer switch control device according to an 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 in series with the second control circuit. The second contactor further comprises a second normally closed contact K25, the second normally closed contact K25 being connected in series with the first control circuit.
In the embodiment of the 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 a closed state, and when the second coil K21 is energized, the second normally-closed contact K25 is in an 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 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.
According to the embodiment of the 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, so that when the first trigger button S1 and the second trigger button S2 are started simultaneously, the disconnecting link of the change-over switch is prevented from rotating, and misoperation of workers is avoided.
As an embodiment of the present invention, the changeover switch includes a first gear, a second gear, and a third gear. The first gear is linked with a first gear normally closed contact S6, the second gear is linked with a second gear first normally closed contact S4 and a second gear second normally closed contact S5, and the third gear is linked with a third gear normally closed contact S3.
In the embodiment of the invention, when the change-over switch is in the first gear, the first gear normally-closed contact S6 is in an open state, and when the change-over switch is in the second gear or the third gear, the first gear normally-closed contact S6 is in a closed state. When the change-over switch is in the second gear, the second-gear first normally-closed contact S4 and the second-gear second normally-closed contact S5 are in an open state, and when the change-over switch is in the first gear or the third gear, the second-gear first normally-closed contact S4 and the second-gear second normally-closed contact S5 are in a closed state. When the changeover switch is in the third gear position, the third-gear-position normally-closed contact S3 is in the open state, and when the changeover switch is in the first gear position or the second gear position, the third-gear-position normally-closed contact S3 is in the closed state.
An embodiment of the present invention further provides a transfer switch, including the transfer switch control device according to any one of the embodiments of fig. 2 to 4.
Referring to fig. 5 as an embodiment of the present invention, fig. 5 is a main circuit diagram of a change-over switch provided in the embodiment of the present invention, as shown in fig. 5, the change-over switch includes three gears, wherein a first gear is a vehicle gear, a second gear is a ground gear, and a third gear is a 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 with a monitoring system of the railway vehicle.
In the embodiment of the invention, the first gear is linked with a first monitoring contact besides the first gear normally-closed contact S6, the second gear is linked with a second monitoring contact besides the second gear first normally-closed contact S4 and the second gear second normally-closed contact S5, and the third gear is linked with a third monitoring contact besides the third gear normally-closed contact S3.
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 change-over switch is in a first gear, the first monitoring contact is in a closed state, and if the change-over switch is in a second gear or a third gear, the first monitoring contact is in an open state. When the first monitoring contact is a normally closed contact, if the change-over switch is in a first gear, the first monitoring contact is in an open state, and if the change-over switch is in a second gear or a third gear, the first monitoring contact is in a closed state.
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 change-over switch is in the second gear, the second monitoring contact is in a closed state, and if the change-over switch is in the first gear or the third gear, the second monitoring contact is in an open state. When the second monitoring contact is a normally closed contact, if the change-over switch is in the second gear, the second monitoring contact is in an open state, and if the change-over switch is in the first gear or the third gear, the second monitoring contact is in a closed state.
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 change-over switch is in a third gear, the third monitoring contact is in a closed state, and if the change-over switch is in the first gear or the second gear, the third monitoring contact is in an open state. When the third monitoring contact is a normally closed contact, if the change-over switch is in a third gear, the third monitoring contact is in an open state, and if the change-over switch is in a first gear or a second gear, the third monitoring contact is in a closed state.
The first monitoring contact, the second monitoring contact and the third monitoring contact are respectively connected with a monitoring system of the railway vehicle, and the monitoring system of the railway vehicle acquires the switch states of the first monitoring contact, the second monitoring contact and the third monitoring contact, so that the position of a disconnecting link of the change-over switch can be monitored, and whether a fault occurs can be determined according to the position of the disconnecting link.
Referring to fig. 5 and 6 as an embodiment of the present invention, fig. 6 is a schematic structural diagram of a transfer switch provided in an embodiment of the present invention, as shown in fig. 5 and 6, a first port X1 of the transfer switch is connected to a pantograph or current collector of a rail vehicle, a second port X2 of the transfer switch is connected to the pantograph or current collector of the rail vehicle, a third port X3 of the transfer switch is connected to a dc input of a first traction inverter of the rail vehicle, a fourth port X4 of the transfer switch is connected to a dc input of a second traction inverter of the rail vehicle, a fifth port X5 of the transfer switch is connected to a dc input of a first auxiliary inverter of the rail vehicle, a sixth port X6 of the transfer switch is connected to a dc input of the first auxiliary inverter of the rail vehicle, and a seventh port X7 of the transfer switch is connected to a power source of a train; the eighth port X8 of the diverter switch is connected to the grounding device of the rail vehicle.
The first gear is connected with the seventh port X7, the second gear is connected with the eighth port X8, and the third gear is connected with the first port X1 and the second port X2, respectively.
Through the connection mode, when the change-over switch is in different gears, the rail vehicle is in different states.
The embodiment of the invention also provides a railway vehicle which comprises the change-over switch.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A transfer switch control apparatus, comprising:
the device 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 with the first control circuit, and the first control circuit is connected with the driving device;
the second trigger button is connected with the second control circuit, and the second control circuit is connected with the driving device;
the driving equipment is connected with the change-over switch;
when the first trigger button is started, the first control circuit controls the driving device to drive the disconnecting link of the change-over switch to rotate along a first direction and switch to a target gear;
when the second trigger button is started, the second control circuit controls the driving device to drive the disconnecting link of the change-over switch to rotate along a second direction and switch to a target gear, wherein the second direction is opposite to the first direction.
2. The apparatus of claim 1, wherein the first control circuit comprises: the first contactor, the third gear normally closed contact and the second gear first normally closed contact;
the first contactor comprises 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 with a negative electrode of a driving power supply, the other end of the first main contact is connected with a first end of the driving device, one end of the second main contact is connected with a positive electrode of the driving power supply, and the other end of the second main contact is connected with a 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 parallel with the second gear first normally closed contact and the first normally open contact which are connected in series;
the first coil is connected to the negative electrode of the control power supply, and the first trigger button and the first normally open contact are connected to the positive electrode of the control power supply.
3. The apparatus of claim 2, wherein the second control circuit comprises: the second contactor, a second gear second normally closed contact and a first gear normally closed contact;
the second contactor comprises 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 electrode of the driving power supply, the other end of the third main contact is connected with the first end of the driving device, one end of the fourth main contact is connected to the negative electrode of the driving power supply, and the other end of the fourth main contact is connected with the second end of the driving device;
the second coil, the first gear normally closed contact, the second gear normally closed contact and the second normally open contact are connected in series, and the second trigger button is connected in parallel with the second gear normally closed contact and the second normally open contact which are connected in series;
the second coil is connected to the negative electrode of the control power supply, and the second trigger button and the second normally open contact are connected to the positive electrode of the control power supply.
4. The apparatus of claim 2, wherein the first contactor further comprises a first normally closed contact in series with the second control circuit.
5. The apparatus of claim 3, wherein the second contactor further comprises a second normally closed contact in series with the first control circuit.
6. The device of claim 3, wherein the transfer switch includes a first gear, a second gear, and a third gear; the first gear and the first gear normally closed contact are linked, the second gear and the second gear first normally closed contact and the second gear second normally closed contact are linked, and the third gear normally closed contact are linked.
7. A diverter switch comprising a diverter switch control according to any one of claims 1 to 6.
8. The change-over switch according to claim 7, characterized in that it comprises three gears, wherein the first gear is a vehicle gear, the second gear is a ground gear, and the third gear is a 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 with a monitoring system of the rail vehicle.
9. The transfer switch of claim 8, wherein a first port of the transfer switch is connected to a pantograph or current collector of a rail vehicle, a second port of the transfer switch is connected to a pantograph or current collector of the rail vehicle, a third port of the transfer switch is connected to a dc input of a first traction inverter of the rail vehicle, a fourth port of the transfer switch is connected to a dc input of a second traction inverter of the rail vehicle, a fifth port of the transfer switch is connected to a dc input of a first auxiliary inverter of the rail vehicle, a sixth port of the transfer switch is connected to a dc input of a first auxiliary inverter of the rail vehicle, and a seventh port of the transfer switch is connected to a plant power source; the eighth port of the change-over switch is connected with a grounding device of the railway vehicle;
the first gear is connected with the seventh port;
the second gear is connected with the eighth port;
the third gear is respectively connected with the first port and the second port.
10. A rail vehicle, characterized in that it comprises a diverter switch according to any one of claims 7 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910159153.3A CN111645708A (en) | 2019-03-04 | 2019-03-04 | Change-over switch control device, change-over switch and rail vehicle |
| PCT/CN2019/096528 WO2020177262A1 (en) | 2019-03-04 | 2019-07-18 | Changeover switch control apparatus, changeover switch and rail vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910159153.3A CN111645708A (en) | 2019-03-04 | 2019-03-04 | Change-over switch control device, change-over switch and rail vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111645708A true CN111645708A (en) | 2020-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910159153.3A Pending CN111645708A (en) | 2019-03-04 | 2019-03-04 | Change-over switch control device, change-over switch and rail vehicle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111645708A (en) |
| WO (1) | WO2020177262A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112885637A (en) * | 2021-01-13 | 2021-06-01 | 株洲中车时代电气股份有限公司 | Conversion drum type three-position switch device and control method and system thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057256C (en) * | 1994-11-09 | 2000-10-11 | 南京铁路分局南京给水电力段 | Operating mechanism for isolating switch for railway electric power supply line |
| DE102010039699A1 (en) * | 2010-08-24 | 2012-03-01 | Siemens Aktiengesellschaft | Drive system for a rail vehicle |
| CN101964269B (en) * | 2010-11-01 | 2013-03-06 | 株洲南车时代电气股份有限公司 | Conversion-drum three-position isolating mode and isolating switch |
| JP2015167448A (en) * | 2014-03-04 | 2015-09-24 | 株式会社ジェイテクト | Motor device for vehicle |
| CN205070852U (en) * | 2015-10-30 | 2016-03-02 | 灵宝金源矿业股份有限公司 | Motor switching control device that is just reversing |
| CN106218669B (en) * | 2016-08-04 | 2018-01-02 | 深圳市英威腾交通技术有限公司 | A kind of train high-voltage isolation grounding switch circuit |
| CN109249807A (en) * | 2018-09-12 | 2019-01-22 | 中车浦镇庞巴迪运输系统有限公司 | A kind of dynamic high voltage converter circuitry of railway traffic vehicle |
-
2019
- 2019-03-04 CN CN201910159153.3A patent/CN111645708A/en active Pending
- 2019-07-18 WO PCT/CN2019/096528 patent/WO2020177262A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112885637A (en) * | 2021-01-13 | 2021-06-01 | 株洲中车时代电气股份有限公司 | Conversion drum type three-position switch device and control method and system thereof |
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| WO2020177262A1 (en) | 2020-09-10 |
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