Trolley collector control system and trolley

Abstract

The embodiment of the application discloses a trolley current collector control system and a trolley, which comprise a current collector controller and a first safety switch. The current collector controller is in communication connection with a current collector executing mechanism to send a control instruction to the current collector executing mechanism. The first safety switch is connected to a power supply circuit of the current collector controller and is used for cutting off or conducting the power supply circuit of the current collector controller. The application avoids the risk that the trolley roof personnel is injured due to the action of the current collecting rod caused by the misoperation of the trolley personnel, and thus the safety of the trolley roof personnel can be ensured.

Description

Technical Field

[0001] The present application relates to the technical field of trams, and in particular to a tram current collector control system and a tram using the control system. Background Art

[0002] Tram roofs are equipped with current collectors, and maintenance on these trams often involves rooftop work. Ensuring the safety of personnel working on the roof is a technical challenge facing those skilled in the art. Summary of the Invention

[0003] In order to solve the above technical problems, the present application provides a tram collector control system, which includes a collector controller and a first safety switch. The collector controller is communicatively connected to the collector actuator to send control instructions to the collector actuator. The first safety switch is connected to the power supply circuit of the collector controller and is used to cut off or conduct the power supply circuit of the collector controller.

[0004] In one implementation manner of the tram current collector control system, the first safety switch is installed on the top of the tram.

[0005] In one embodiment of the tram current collector control system, the first safety switch is installed near the escape hatch on the top of the tram or is integrated on the escape hatch on the top of the tram.

[0006] An embodiment of a tram current collector control system includes a detection circuit, which is used to detect the opening and closing status of the tram roof escape hatch. The first safety switch is electrically connected to the detection circuit to automatically open or close according to the electrical signal of the detection circuit.

[0007] An embodiment of a tram current collector control system includes a second safety switch connected to the power supply circuit of the current collector actuator and used to cut off or conduct the power supply circuit of the current collector actuator.

[0008] An embodiment of a tram current collector control system includes a linkage circuit, and the first safety switch is electrically connected to the second safety switch through the linkage circuit, thereby realizing linkage between the first safety switch and the second safety switch.

[0009] In one embodiment of the tram current collector control system, the second safety switch is installed above the insulating layer of the tram current collector to achieve electrical isolation from the tram body through the insulating layer.

[0010] An embodiment of a tram current collector control system includes an isolation component connected to the linkage circuit, and the first safety switch and the second safety switch are electrically isolated by the isolation component.

[0011] In one implementation of the electric vehicle current collector control system, the isolation component adopts a low-voltage isolation power supply.

[0012] In addition, the present application also provides an electric vehicle, comprising the electric vehicle current collector control system described in any one of the above items.

[0013] The tram current collector control system and tram provided in the present application avoid the risk of injury to people on the roof due to misoperation by people inside the tram, which may cause the current collector pole to move, thereby ensuring the safety of people on the roof. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the control system provided in this application assembled on a tram.

[0015] Figure 2 This is a control principle block diagram of the control system provided in this application.

[0016] The following are the descriptions of the reference numerals:

[0017] 10. Collector controller, 20. Collector actuator, 30. First safety switch, 40. Escape hatch, 50. Second safety switch, 60. Insulation layer, 70. Low-voltage isolated power supply, 80. High-voltage isolation component, 90. High-voltage equipment, 100. Interlocking circuit. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solution of the present application, the technical solution of the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0019] like Figure 1 The control system provided in this application includes a collector controller 10. The collector controller 10 can be a low-voltage controller powered by a low-voltage auxiliary power supply.

[0020] The control system further includes a trigger component mounted on the dashboard of the driving area for triggering the collector controller 10. The trigger component may specifically be a button, a knob or a touch key.

[0021] The collector controller 10 is in communication with the collector actuator 20. A person in the vehicle operates the trigger component on the dashboard in the driver's area to cause the collector controller 10 to send control instructions to the collector actuator 20. An isolation structure is provided on the communication connection line between the collector controller 10 and the collector actuator 20.

[0022] The collector actuator includes a rotary lifting device for driving the collector rod to lift and rotate. When the rotary lifting device receives a control instruction from the collector controller 10, it will take corresponding actions to drive the collector rod to lift an appropriate distance and rotate an appropriate angle.

[0023] The control system further includes a first safety switch 30, which is connected to the power supply circuit of the collector controller 10 and can cut off or conduct the power supply circuit of the collector controller 10. The first safety switch 30 can be a low-voltage switch.

[0024] When performing roof operations, the roof operator cuts off the power supply circuit of the collector controller 10 by disconnecting the first safety switch 30. In this way, even if the person in the car triggers the trigger component on the dashboard of the driving area, it will not cause the collector rod to move. Therefore, it is not easy for the roof operator to be injured due to the movement of the collector rod due to misoperation by the person in the car, thereby improving the safety of roof operations.

[0025] Specifically, the first safety switch 30 can be mounted on the roof of the tram to prevent access by personnel outside the vehicle and facilitate operation by personnel working on the roof. More specifically, the first safety switch 30 can be installed near or integrated with the roof escape hatch 40. This not only facilitates operation by personnel working on the roof but also ensures that passengers escaping from the roof can operate the switch in an emergency. If the first safety switch 30 is mounted outside the tram, it should be equipped with a certain level of protection to meet the requirements for off-vehicle use.

[0026] Furthermore, the control system may also be provided with a detection circuit (not shown in the figure) for detecting the current opening and closing status of the roof escape hatch 40. As for the specific circuit structure of the detection circuit, it is well known to those skilled in the art and will not be described in detail here.

[0027] The detection circuit is electrically connected to the first safety switch 30, and the first safety switch 30 is opened or closed according to the electrical signal of the detection circuit. Specifically, when the electrical signal of the detection circuit reflects that the escape hatch 40 is currently in the open state, the first safety switch 30 is automatically opened; when the electrical signal of the detection circuit reflects that the escape hatch 40 is currently in the closed state, the first safety switch 30 is automatically closed.

[0028] In this way, when the operator opens the escape hatch 40 due to maintenance needs or the passenger opens the escape hatch 40 due to an emergency, the first safety switch 30 can be automatically disconnected to cut off the power supply circuit of the collector controller 10, so that the collector rod of the collector will not move, thereby avoiding the problem of the collector rod moving and causing injuries to the roof operator or passengers escaping from the escape hatch 40.

[0029] Furthermore, the control system may also be provided with a second safety switch 50. The rotary lifting device of the collector pole includes a power mechanism for providing power, which is connected to a power source and draws power from the power source. The second safety switch 50 is connected to the power supply circuit of the power mechanism and is used to cut off or conduct the power supply circuit of the power mechanism. For example, if the power mechanism is a pneumatic mechanism, the second safety switch is connected to the power supply circuit of the pneumatic mechanism, specifically to the power supply circuit of the pneumatic mechanism's valve assembly.

[0030] Normally, disconnecting the first safety switch 30 to cut off the power supply circuit of the collector controller 10 can prevent the collector rod from moving. However, once the circuit where the first safety switch 30 is located fails, this function will fail. By setting the above-mentioned second safety switch 50, when the circuit where the first safety switch 30 is located fails, the function of preventing the collector rod from moving can be continued by disconnecting the second safety switch 50. When the first safety switch 30 is normal, the second safety switch 50 can also be disconnected to further improve the safety of roof operations.

[0031] Specifically, some current collectors have an automatic pole-lowering protection function. This means that in the event of an unexpected situation, such as a pole disconnection, the current collector actuator 20 will automatically control the pole to detach from the grid and lower itself. Preferably, current collectors without this automatic pole-lowering protection function are equipped with the aforementioned second safety switch 50 to prevent the second safety switch 50 from interfering with the automatic pole-lowering protection function.

[0032] Specifically, the first safety switch 30 and the second safety switch 50 can be electrically connected via a linkage circuit 100, thereby achieving a coordinated operation. This linkage circuit is conventional in the art, and its structure is not further described here. When the first safety switch 30 is opened, the second safety switch 50 is also opened. When the first safety switch 30 is closed, the second safety switch 50 is also closed. This allows both the first and second safety switches to be opened simultaneously during roof operations, achieving dual-path control and a double-safety effect.

[0033] Specifically, the current collector is provided with an insulating layer 60 and a high-voltage isolation component 80 , etc., and electrical isolation from the high-voltage equipment 90 in the vehicle is achieved through the insulating layer 60 and the high-voltage isolation component 80 , etc.

[0034] The second safety switch 50 can be installed above the insulating layer 60 of the collector. In this way, the inherent insulating layer 60 of the collector can be used to achieve electrical isolation between the second safety switch 50 and the vehicle body. There is no need to set up additional insulating components to isolate the second safety switch 50 from the vehicle body, which helps to simplify the structure and reduce system configuration costs.

[0035] Specifically, an isolation component is connected to the linkage circuit 100 to achieve electrical isolation between the first safety switch 30 and the second safety switch 50, thereby improving electrical safety. The isolation component can be a low-voltage isolated power supply 70 or other type of electrical device with electrical isolation function.

[0036] In addition, the present application also provides an electric vehicle, which adopts the above-mentioned current collector control system. The other structures of the electric vehicle are prior art and will not be described in detail here.

[0037] In summary, the current collector control system and electric vehicle provided in this application avoid the risk of injury to people on the roof due to misoperation by people inside the vehicle by providing a safety switch, thereby improving the safety of people on the roof.

[0038] The principles and implementation methods of the present application have been described above using specific examples. The description of the above embodiments is only intended to help understand the method and core concept of the present application. It should be noted that for those skilled in the art, without departing from the principles of the present application, various improvements and modifications may be made to the present application, and such improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. Electric vehicle collector control system, characterized in that: The electric vehicle collector control system comprises a collector controller (10) and a first safety switch (30), wherein the collector controller (10) is communicatively connected to the collector actuator (20), and a person in the vehicle operates a trigger component on the instrument panel in the driving area to cause the collector controller (10) to send a control instruction to the collector actuator (20), and the first safety switch (30) is connected to the power supply circuit of the collector controller (10) and is used to cut off or conduct the power supply circuit of the collector controller (10); the electric vehicle collector control system comprises a second safety switch (50), wherein the second safety switch (50) is connected to the power supply circuit of the collector actuator (20) and is used to cut off or conduct the power supply circuit of the collector actuator (20), and the collector actuator (20) comprises a rotary lifting device for driving the collector rod of the collector to lift and rotate.

2. The electric vehicle current collector control system according to claim 1, characterized in that: The first safety switch (30) is installed on the top of the tram.

3. The electric vehicle current collector control system according to claim 2, characterized in that: The first safety switch (30) is installed near the escape hatch (40) on the top of the tram or is assembled on the escape hatch (40) on the top of the tram.

4. The electric vehicle current collector control system according to claim 2, characterized in that: The tram current collector control system comprises a detection circuit for detecting the opening and closing state of the tram roof escape hatch (40); the first safety switch (30) is electrically connected to the detection circuit to automatically open or close according to an electrical signal from the detection circuit.

5. The electric vehicle current collector control system according to any one of claims 1 to 4, characterized in that: The electric vehicle current collector control system comprises a linkage circuit, and the first safety switch (30) is electrically connected to the second safety switch (50) via the linkage circuit, thereby realizing linkage between the first safety switch (30) and the second safety switch (50).

6. The electric vehicle current collector control system according to claim 5, characterized in that: The second safety switch (50) is installed above the insulating layer (60) of the tram collector to achieve electrical isolation from the tram body through the insulating layer (60).

7. The electric vehicle current collector control system according to claim 6, characterized in that: The electric vehicle current collector control system comprises an isolation component connected to the linkage circuit (100), and the first safety switch (30) and the second safety switch (50) are electrically isolated via the isolation component.

8. The electric vehicle current collector control system according to claim 7, characterized in that: The isolation component adopts a low-voltage isolation power supply (70).

9. A tram, characterized in that The invention comprises the electric vehicle current collector control system according to any one of claims 1 to 8.

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