A fault excitation regulator testing device
By designing a fault excitation regulator test device, and using an ammeter and a programmable timer to simulate the load of the excitation coil, the problem of the inability to test fault excitation regulators was solved, achieving fast and accurate test results, which are easy to carry and improve the smoothness of locomotive starting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CRRC QISHUYAN CO LTD
- Filing Date
- 2022-11-21
- Publication Date
- 2026-06-12
AI Technical Summary
The existing faulty excitation regulators cannot be effectively tested and repaired, resulting in unstable locomotive starting and posing a risk of impact.
A fault excitation regulator test device was designed, including a housing, an ammeter, a programmable timer, and the terminal of the component under test. The load of the excitation coil is simulated by an electrically connected resistor and a power supply. Synchronous testing is achieved using the programmable timer and the ammeter to avoid electromagnetic interference and ensure the accuracy and portability of the test data.
It enables rapid and accurate testing of faulty excitation regulators, ensuring that the testing device is miniaturized, portable, meets design requirements, and ensures smooth and shock-free locomotive starting.
Smart Images
Figure CN115629267B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of fault excitation regulator testing devices, and in particular to a fault excitation regulator testing device. Background Technology
[0002] A fault excitation regulator is an emergency device used to prevent locomotive breakdown and maintain locomotive traction when the onboard microcomputer system fails. It features linear loading, where the excitation current gradually rises to a steady-state value after loading, with a delay time of 4-6 seconds to ensure smooth, shock-free locomotive startup. To improve the maintenance capabilities of the fault excitation regulator, a specialized testing device for testing it is developed. Summary of the Invention
[0003] To overcome the shortcomings of existing methods, the present invention provides a fault excitation regulator testing device.
[0004] The technical solution adopted by this invention to solve its technical problem is: a fault excitation regulator testing device, characterized in that it includes a housing, an ammeter, a programmable timer, and a terminal block of the component under test; the front of the housing is provided with an ammeter and a programmable timer, the rear is provided with a terminal block, the right side is provided with a double-contact toggle switch, and the interior is provided with a tubular resistor mounting slot; the tubular resistor mounting slot is equipped with a tubular resistor and a small-power tubular resistor, and the right side is provided with an adjustable tubular resistor; a DC power supply one and a DC power supply two are respectively installed above and below the tubular resistor; the ammeter is electrically connected to the programmable timer, the adjustable tubular resistor, the terminal block, and the DC power supply one; the programmable timer is electrically connected to the DC power supply two.
[0005] According to another embodiment of the present invention, the terminal block further includes contacts X1, X2, X3, X4, and X5; one end of contact X3 is connected to the interface 79 of the device under test, and the other end is connected to an ammeter; one end of contact X4 is connected to the interface 69 of the device under test, and the other end is connected to contact X5 through a series tube resistor; one end of contact X5 is connected to the interface 63A of the device under test, and the other end is connected to contact X2; one end of contact X2 is connected to DC power supply one and DC power supply two, and the other end is connected to an adjustable DC regulated power supply 110V- interface; one end of contact X1 is connected to an adjustable tube resistor, DC power supply one, and DC power supply two; the other end is connected to an adjustable DC regulated power supply 110V+ interface.
[0006] According to another embodiment of the present invention, the adjustable tubular resistor is further comprising: the adjustable tubular resistor being connected to a low-power tubular resistor; the adjustable tubular resistor being connected to an ammeter; the low-power tubular resistor being connected in series with the tubular resistor; and a double-contact toggle switch contact K1-2 being provided between the low-power tubular resistor and the tubular resistor.
[0007] According to another embodiment of the present invention, the low-power transistor resistor comprises R1, R2 and R3 connected in parallel; the resistance values of R1, R2 and R3 are all 1KΩ.
[0008] According to another embodiment of the present invention, the ammeter and the programmable timer are electrically connected, and a double-contact toggle switch contact K1-1 is provided between the connecting circuits; the ammeter is provided with a normally open switch inside.
[0009] According to another embodiment of the present invention, the ammeter is further connected to a 24V DC power supply interface; the programmable timer is connected to a 24V DC power supply interface.
[0010] According to another embodiment of the present invention, the box body is further provided with a cover plate 11 at both the bottom and the top, and the box body and the cover plate 11 are made of epoxy board material.
[0011] According to another embodiment of the present invention, the adjustable DC power supply I and adjustable DC power supply II are selected from DC 110V / DC 24V; the adjustable tube resistor is R5 with a maximum resistance of 100Ω; the tube resistor is R4 with a resistance of 100Ω; and the ammeter is selected from DM3D-A5-R3 ammeter.
[0012] The beneficial effects of this invention are that the testing device is small in size, has a compact internal structure, and is easy to carry; through this testing device, faulty excitation regulators can be tested quickly, conveniently, and accurately, meeting design technical requirements and solving the problem that faulty excitation regulators cannot be tested and repaired; faulty excitation regulators tested by this testing device can be installed and used in vehicles, and the test function is normal. Attached Figure Description
[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0014] Figure 1 This is a schematic diagram of the structure of the present invention;
[0015] Figure 2 This is the electrical schematic diagram of the present invention.
[0016] In the diagram: 1. Box body; 2. DC power supply one; 3. Tubular resistor; 4. Ammeter; 5. Terminal block; 6. Tubular resistor mounting slot; 7. Adjustable tubular resistor; 8. Low-power tubular resistor; 9. Double-contact toggle switch; 10. Programmable timer; 11. Cover plate; 12. DC power supply two; 13. Component under test. Detailed Implementation
[0017] like Figure 1This is a schematic diagram of the structure of the present invention, a fault excitation regulator testing device, characterized in that it includes a housing 1, an ammeter 4, a programmable timer 10, and a test component terminal 13; the housing 1 has an ammeter 4 and a programmable timer 10 on the front side, a terminal block 5 on the rear side, a double-contact toggle switch 9 on the right side, and a tubular resistor mounting slot 6 inside; the tubular resistor mounting slot 6 is equipped with a tubular resistor 3 and a small-power tubular resistor 8, and an adjustable tubular resistor 7 is provided on the right side; a DC power supply 2 and a DC power supply 12 are respectively installed above and below the tubular resistor 3; the ammeter 4 is electrically connected to the programmable timer 10, the adjustable tubular resistor 7, the terminal block 5, and the DC power supply 2; the programmable timer 10 is electrically connected to the DC power supply 12.
[0018] Specifically, a double-contact toggle switch 9 is used to control the timer and the power supply of the test circuit, ensuring the synchronization of the timer and the test circuit and the accuracy of the test data; a programmable timer 10 and an ammeter 4 are used in conjunction to stop the timing and display the time when the test circuit current reaches 1.75A; a 100Ω adjustable tubular resistor 7 is used to simulate the excitation coil load, and the resistance value of this resistor can be adjusted to control the current to 1.75A when the power supply voltage is unstable; the ammeter 4 and the programmable timer 10 in the test device are powered by two separate DC power supplies, DC power supply 2 and DC power supply 12, to isolate their power supply and avoid mutual electromagnetic interference, ensuring the accuracy of the test data; the terminal block 5 leads out external test leads for convenient test wiring.
[0019] According to another embodiment of the present invention, the terminal block 5 further includes contacts X1, X2, X3, X4, and X5; one end of contact X3 is connected to interface 79 of the measured element terminal 13, and the other end is connected to ammeter 4; one end of contact X4 is connected to interface 69 of the measured element terminal 13, and the other end is connected to contact X5 through a series tube resistor 3; one end of contact X5 is connected to interface 63A of the measured element terminal 13, and the other end is connected to contact X2; one end of contact X2 is connected to DC power supply 2 and DC power supply 12, and the other end is connected to the DC adjustable regulated power supply 110V- interface; one end of contact X1 is connected to the adjustable tube resistor 7, DC power supply 2 and DC power supply 12, and the other end is connected to the DC adjustable regulated power supply 110V+ interface.
[0020] According to another embodiment of the present invention, the adjustable tubular resistor 7 is connected to a low-power tubular resistor 8; the adjustable tubular resistor 7 is connected to an ammeter 4; the low-power tubular resistor 8 is connected in series with the tubular resistor 3; and a double-contact toggle switch 9 with contacts K1-2 is provided between the low-power tubular resistor 8 and the tubular resistor 3.
[0021] According to another embodiment of the present invention, the low-power tube resistor 8 includes R1, R2 and R3 connected in parallel; the resistance values of R1, R2 and R3 are all 1KΩ. By using three low-power tube resistors with small power and size in parallel, the tooling size is greatly reduced while meeting the power requirements, saving internal space and making the internal structure of the test device compact and easy to carry.
[0022] According to another embodiment of the present invention, the ammeter 4 and the programmable timer 10 are electrically connected, and a double-contact toggle switch 9 with contact K1-1 is provided between the connecting circuits; the ammeter 4 is provided with a normally open switch inside.
[0023] According to another embodiment of the present invention, the ammeter 4 is connected to the DC power supply one (2) 24V interface; the programmable timer 10 is connected to the DC power supply two (12) 24V interface.
[0024] According to another embodiment of the present invention, the box body 1 is further provided with a cover plate 11 at the bottom and top, the box body 1 is made of 1mm steel plate, and the cover plate 11 is made of epoxy board material.
[0025] According to another embodiment of the present invention, the DC power supply 12 and DC power supply 212 are selected as DC 110V / DC 24V DC power supplies; the adjustable tube resistor 7 is R5 with a maximum resistance value of 100Ω; the tube resistor 3 is R4 with a resistance value of 100Ω; and the ammeter 4 is selected as a DM3D-A5-R3 ammeter.
[0026] The specific operating procedure and pre-test preparation are as follows: First, connect the wiring. Connect the positive line of the DC adjustable regulated power supply output to X1 and the negative line to X2; connect component 13's 79 to X3, 69 to X4, and 63A to X5; Second, turn on the adjustable DC regulated power supply and adjust its output voltage to 110V. Close the double-contact toggle switch, and the test fixture and component under test will begin to work; Then, adjust the adjustable tube resistor 7 so that the test circuit current on ammeter 4 is greater than the operating current of component under test, 1.75A; Then, set the ammeter to close its internal normally open contact when the current reaches 1.75A, and set the programmable timer 10 to stop working when the trigger terminal is at a high potential; Finally, disconnect the double-contact toggle switch 9 to prepare for testing.
[0027] Start the test: Close the double-contact toggle switch 9 to synchronize the programmable timer 10 with the power supply of the test circuit. When the test circuit current reaches 1.75A, the normally open contact inside the ammeter 4 closes, the trigger terminal of the programmable timer 10 reaches a high potential, the timer stops counting, and displays the time required for the load current of the component under test to rise from 0 to 1.75A. A time within the range of 4-6 seconds is considered qualified. Otherwise, after powering off, adjust the adjustable potentiometer inside the component under test and repeat the above test process until the test time meets the requirements.
[0028] The above description is illustrative only and not restrictive of the present invention. Those skilled in the art will understand that many modifications, variations or equivalents can be made without departing from the spirit and scope defined by the appended claims, and all such modifications, variations or equivalents will fall within the protection scope of the present invention.
Claims
1. A fault excitation regulator testing device, characterized in that, The device includes a housing (1), an ammeter (4), a programmable timer (10), and a terminal block (13) for the component under test. The housing (1) has an ammeter (4) and a programmable timer (10) on the front, a terminal block (5) on the rear, a double-contact toggle switch (9) on the right, and a tubular resistor mounting slot (6) inside. The tubular resistor mounting slot (6) is equipped with a tubular resistor (3) and a low-power tubular resistor (8), and an adjustable tubular resistor (7) is provided on the right. A DC power supply (2) and a DC power supply (12) are installed above and below the tubular resistor (3), respectively. The ammeter (4) is electrically connected to the programmable timer (10), the adjustable tubular resistor (7), the terminal block (5), and the DC power supply (2). The programmable timer (10) is electrically connected to the DC power supply (12). The terminal block (5) includes contacts X1, X2, X3, X4 and X5; one end of contact X3 is connected to the interface 79 of the measured component (13) and the other end is connected to the ammeter (4); one end of contact X4 is connected to the interface 69 of the measured component (13) and the other end is connected to contact X5 through a series tube resistor (3); one end of contact X5 is connected to the interface 63A of the measured component (13) and the other end is connected to contact X2; one end of contact X2 is connected to DC power supply one (2) and DC power supply two (12) and the other end is connected to the DC adjustable regulated power supply 110V- interface; one end of contact X1 is connected to the adjustable tube resistor (7), DC power supply one (2) and DC power supply two (12) and the other end is connected to the DC adjustable regulated power supply 110V+ interface.
2. The fault excitation regulator testing device according to claim 1, characterized in that, The adjustable tubular resistor (7) is connected to the low-power tubular resistor (8); the adjustable tubular resistor (7) is connected to the ammeter (4); the low-power tubular resistor (8) is connected in series with the tubular resistor (3); a double-contact toggle switch (9) with contact K1-2 is provided between the low-power tubular resistor (8) and the tubular resistor (3).
3. The fault excitation regulator testing device according to claim 2, characterized in that, The low-power tube-type resistor (8) includes R1, R2 and R3 connected in parallel; the resistance values of R1, R2 and R3 are all 1KΩ.
4. The fault excitation regulator testing device according to claim 1, characterized in that, The ammeter (4) and the programmable timer (10) are electrically connected, and a double-contact toggle switch (9) with contact K1-1 is provided between the connecting circuits; the ammeter (4) is provided with a normally open switch inside.
5. The fault excitation regulator testing device according to claim 1, characterized in that, The ammeter (4) is connected to the 24V interface of DC power supply one (2); the programmable timer (10) is connected to the 24V interface of DC power supply two (12).
6. The fault excitation regulator testing device according to claim 1, characterized in that, The box body (1) is provided with a cover plate (11) at the bottom and top, and the box body (1) and the cover plate (11) are made of epoxy board material.
7. The fault excitation regulator testing device according to claim 1, characterized in that, DC power supply 1 (2) and DC power supply 2 (12) are DC110V / DC24V DC power supplies; the adjustable tube resistor (7) is R5 with a maximum resistance of 100Ω; the tube resistor (3) is R4 with a resistance of 100Ω; the ammeter (4) is a DM3D-A5-R3 ammeter.