Urban rail vehicle relay detection device

Abstract

The utility model discloses an urban rail vehicle relay detection device, and relates to the technical field of relay detection. Comprising an adjustable direct-current power supply, a relay base and an air switch, a relay is inserted into the relay base, the D1 end of the relay is connected with the positive electrode of the adjustable direct-current power supply through a cable, and the negative electrode of the adjustable direct-current power supply is connected with the D4 end of the relay through a cable; the D2 end of the relay is connected with the negative electrode of the adjustable direct-current power supply through the air switch. The device is reasonable in structural design, and can detect the performance of a plurality of relays at one time, and the detection performance comprises whether the on-off of the relays is normal or not and whether the working performance is normal or not under different set voltages and power-on time. The device is safe and reliable, is convenient and simple to use, improves the relay detection efficiency, and saves the manpower and material cost.

Description

Technical Field

[0001] The utility model relates to the technical field of relay detection, in particular to a relay detection device for urban rail vehicles. Background Art

[0002] In urban rail vehicles, signal transmission and logic control are mostly implemented by relays. For example, relays control door status, air brake status, pantograph control, driver's console activation, and traction control. Relays are commonly used in automatic control systems, connecting and disconnecting circuits, issuing and controlling commands, and reporting device status, thereby forming automatic and remote control circuits. Relays are used in large numbers, and their reliability directly impacts the reliability and safety of signal systems and vehicle operation.

[0003] During the routine inspection and repair of vehicles, detecting the performance of relays is an important process. In order to meet the detection needs of a large number of relays in vehicles and reduce manpower and material costs, a relay detection device is designed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model aims to provide a relay testing device for urban rail vehicles. This device features a rational design and can simultaneously test the performance of multiple relays, including whether the relays are switching properly and operating properly under different voltages and power-on times. This device is safe, reliable, easy to use, and improves relay testing efficiency, saving manpower and material costs.

[0005] In order to achieve the above-mentioned object, the utility model is implemented through the following technical solution: a relay detection device for urban rail vehicles, comprising an adjustable DC power supply, a relay base and a circuit breaker, wherein a relay is plugged into the relay base, the D1 terminal of the relay is connected to the positive pole of the adjustable DC power supply via a cable, the negative pole of the adjustable DC power supply is connected to the D4 terminal of the relay via a cable, and the D2 terminal of the relay is connected to the negative pole of the adjustable DC power supply via a circuit breaker.

[0006] Preferably, the D1 and D4 terminals of the relay are normally closed and permanently energized.

[0007] Preferably, the adjustable DC power supply 1 adopts HCP15-150.

[0008] Preferably, the relay base adopts EA-103 LP BFD.

[0009] Preferably, the circuit breaker is Siemens C65H-DC RC 20A.

[0010] Preferably, there are multiple cables provided for connecting various devices to form a complete circuit.

[0011] Preferably, the D2 terminal of the relay is a normally open contact.

[0012] Beneficial effects of the utility model:

[0013] 1. It can meet the relay performance test requirements for daily vehicle maintenance, vehicle failure and post-vehicle repair, and the working verification of vehicle relays has been completed using this test device;

[0014] 2. Improve operator work efficiency, and one person can complete the performance verification of the entire vehicle relay group;

[0015] 3. The relay detection device is versatile and can be used in multiple urban rail projects;

[0016] 4. The parts used are interchangeable and can be quickly restored to normal use in the event of a failure;

[0017] 5. The relay testing equipment is flexible and can detect different relay models and flexibly carry the required number of relays for testing;

[0018] 6. The detection device has a simple structure and is easy to produce, which reduces manufacturing and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments;

[0020] Figure 1 It is a structural diagram of the present utility model. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] Reference Figure 1 This specific embodiment adopts the following technical solution: a relay detection device for urban rail vehicles, including an adjustable DC power supply 1, a relay base and a circuit breaker 3. The relay base is plugged with a relay 2, the D1 end of the relay is connected to the positive pole of the adjustable DC power supply 1 through a cable, the negative pole of the adjustable DC power supply 1 is connected to the D4 end of the relay through a cable, and the D2 end of the relay is connected to the negative pole of the adjustable DC power supply 1 through the circuit breaker 3.

[0023] It is worth noting that the adjustable DC power supply 1 adopts HCP15-150, which is used to output voltage to the device and adjust the working voltage output to the relay.

[0024] It is worth noting that the relay base adopts EA-103 LP BFD, which is used to plug in and fix the relay equipment and connect the relay to make it work.

[0025] In addition, the circuit breaker is a Siemens C65H-DC RC 20A, which is used to control the connection and disconnection of the entire circuit.

[0026] The working principle of this specific embodiment:

[0027] 1. The positive pole of the power supply is connected to the D1 terminal of the relay, and the negative pole of the power supply is connected to the D4 terminal of the relay. During the whole process, the D1 terminal and the D4 terminal are powered on for a long time, and the D2 terminal is connected through the circuit breaker to realize the normal phenomenon of power-off delay function. When the relay does not enter the action state, the D2 terminal should be disconnected.

[0028] 2. Adjust the DC voltage source to the maximum operating voltage of the relay, 138V. Turn on the circuit breaker to close the normally open contacts. Cut off the power after 600 seconds to check whether there is any circuit damage inside the relay, whether the performance is normal, and whether the delay function is normal. The delay time is within 3 seconds (+ / - 2%).

[0029] This specific embodiment can simultaneously test the performance of multiple relays, including whether the relays are switching properly and whether they are operating normally under different voltages and power-on times. This device is safe, reliable, easy to use, and increases relay testing efficiency, saving manpower and material costs.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A relay detection device for urban rail vehicles, characterized in that: The invention comprises an adjustable DC power supply (1), a relay base and an air switch (3); a relay (2) is plugged into the relay base; a D1 end of the relay is connected to the positive pole of the adjustable DC power supply (1) via a cable; a negative pole of the adjustable DC power supply (1) is connected to a D4 end of the relay via a cable; and a D2 end of the relay is connected to the negative pole of the adjustable DC power supply (1) via the air switch (3).

2. The urban rail vehicle relay detection device according to claim 1, characterized in that: The D1 and D4 terminals of the relay are normally closed terminals.

3. The urban rail vehicle relay detection device according to claim 1, characterized in that: The adjustable DC power supply (1) adopts HCP15-150.

4. The urban rail vehicle relay detection device according to claim 1, characterized in that: The relay base is EA-103 LP BFD.

5. The urban rail vehicle relay detection device according to claim 1, characterized in that: The circuit breaker is Siemens C65H-DC RC 20A.

6. The urban rail vehicle relay detection device according to claim 1, characterized in that: There are multiple cables.

7. The urban rail vehicle relay detection device according to claim 1, characterized in that: The D2 terminal of the relay is a normally open contact.

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