Control assembly detection device and system

Abstract

This application discloses a control component testing device and system. The device includes a power supply module, a signal triggering module, a signal conversion module, and a voltage output module. The power supply module is electrically connected to the signal triggering module, the signal conversion module, and the voltage output module. The signal triggering module is also electrically connected to the signal conversion module and the voltage output module. The signal conversion module's component interface is plugged into and plugged into multiple control components. The signal triggering module generates a detection signal. The signal conversion module receives the voltage level signal from the control component through the detection signal and converts the voltage level signal into a control signal. The voltage output module converts AC power into DC power to be measured based on the detection signal and the control signal, and determines the detection result of the control component. By simply inserting the components into the testing device, multiple control components can be tested one by one, improving testing efficiency.

Description

Technical Field

[0001] This invention belongs to the field of DC power supply panel testing technology, specifically relating to a control component testing device and system. Background Technology

[0002] DC power supply panels are crucial equipment in the power industry, primarily providing a stable DC power supply to the power system to meet the DC power requirements of high and low voltage switchgear, electrical instruments, and control power supplies. Nuclear power plants utilize DC power supply panels with various voltage levels, currently including 48V, 110V, and 220V. The control components are the main parts of the DC power supply panel. Because these components use numerous electronic parts, their characteristics may change over time, significantly increasing the likelihood of control component failure. Therefore, backup control components are typically provided, and these backup components also require inspection and maintenance during the regular inspection and maintenance of the DC power supply panel.

[0003] Currently, the testing of backup control components involves selecting a matching DC power supply panel based on the voltage level of each control component. The normally functioning control component is removed from the panel, the control component to be tested is installed, the panel is restarted, and testing is performed using specialized equipment. This method increases the complexity of the process and may damage the DC power supply panel. Furthermore, each voltage level DC power supply panel can only test control components of that single voltage level, resulting in low testing efficiency. Summary of the Invention

[0004] In view of this, the present invention provides a control component testing device and system, the main purpose of which is to solve the problems of cumbersome operation and low testing efficiency when testing spare control components.

[0005] To address the aforementioned problems, this application provides a control component detection device, which includes a power supply module, a signal triggering module, a signal conversion module, and a voltage output module, wherein...

[0006] The power supply module's power terminal is electrically connected to an AC power source, the power supply module's DC power output terminal is electrically connected to the power input terminal of the signal trigger module, the power supply module's first AC power output terminal is electrically connected to the power input terminal of the signal conversion module, the power supply module's second AC power output terminal is electrically connected to the power input terminal of the voltage output module, the signal trigger module's first detection signal output terminal is electrically connected to the signal input terminal of the signal conversion module, the signal trigger module's second detection signal output terminal is electrically connected to the detection signal input terminal of the voltage output module, the signal conversion module's control signal output terminal is electrically connected to the control signal input terminal of the voltage output module, and the signal conversion module's component interface is electrically connected to multiple control components via a plug-in method.

[0007] The power supply module provides matching power to the signal triggering module, the signal conversion module, and the voltage output module. The signal triggering module generates a first detection signal and a second detection signal in response to a triggering operation. The signal conversion module receives a voltage level signal from the control component via the first detection signal and converts the voltage level signal into a control signal. The voltage output module converts AC power into DC power to be measured based on the second detection signal and the control signal, and determines the detection result of the control component based on the voltage value of the DC power to be measured.

[0008] Optionally, the power module includes a first transformer unit, a second transformer unit, and a main circuit control unit, wherein,

[0009] The power supply terminal of the first transformer unit is electrically connected to the AC power supply. The first AC power output terminal of the first transformer unit is electrically connected to the power input terminal of the signal conversion module and the power input terminal of the second transformer unit. The second AC power output terminal of the first transformer unit is electrically connected to the power input terminal of the voltage output module. The DC power output terminal of the second transformer unit is electrically connected to the power input terminal of the main circuit control unit and the power input terminal of the signal conversion module. The signal output terminal of the main circuit control unit is electrically connected to the signal input terminal of the first transformer unit.

[0010] Optionally, the main circuit control unit includes a main circuit start switch, a main circuit stop switch, and a first contactor, wherein,

[0011] The circuit in which the main circuit start switch and the first normally open contact of the first contactor are connected in parallel is connected in series with the main circuit stop switch and the coil of the first contactor, so that the first normally open contact of the first contactor and the coil of the first contactor are connected in series at the DC power output terminal of the second transformer unit to form a self-holding circuit.

[0012] The second normally open contact and the third normally open contact of the first contactor are electrically connected to the signal input terminal of the first transformer unit, respectively.

[0013] Optionally, the first transformer unit includes a circuit breaker, a first transformer, a first rectifier bridge, and a frequency converter, wherein,

[0014] The first terminal of the circuit breaker is electrically connected to the AC power supply. The second terminal of the circuit breaker is electrically connected to the power input terminal of the signal conversion module, the power input terminal of the second transformer unit, the first terminal of the second normally open contact of the first contactor, and the first terminal of the third normally open contact. The input terminal of the first transformer is electrically connected to the second terminal of the second normally open contact of the first contactor and the second terminal of the third normally open contact. The output terminal of the first transformer is electrically connected to the input terminal of the first rectifier bridge. The output terminal of the first rectifier bridge is electrically connected to the power input terminal of the frequency converter. The power output terminal of the frequency converter is electrically connected to the power input terminal of the voltage output module.

[0015] Optionally, the second transformer unit includes a second transformer and a second rectifier bridge, wherein,

[0016] The input terminal of the second transformer is electrically connected to the first AC power output terminal of the first transformer unit, the output terminal of the second transformer is electrically connected to the input terminal of the second rectifier bridge, and the output terminal of the second rectifier bridge is electrically connected to the power input terminal of the main circuit control unit and the power input terminal of the signal conversion module, respectively.

[0017] Optionally, the signal triggering module includes a first mode selection branch, a second mode selection branch, and a third mode selection branch. The first mode selection branch includes a first start switch, a first stop switch, and a second contactor. The second mode selection branch includes a second start switch, a second stop switch, and a third contactor. The third mode selection branch includes a third start switch, a third stop switch, and a fourth contactor.

[0018] The circuit in which the first start switch and the first normally open contact of the second contactor are connected in parallel is connected in series with the coil of the second contactor, the first mode off switch, the first normally closed contact of the third contactor and the first normally closed contact of the fourth contactor, so that the first normally open contact of the second contactor and the coil of the second contactor are connected in series to the DC power output terminal of the power module to form a self-holding circuit.

[0019] The second normally open contact and the third normally open contact of the second contactor are electrically connected to the signal input terminal of the signal conversion module, and the fourth normally open contact, the fifth normally open contact and the sixth normally open contact of the second contactor are electrically connected to the detection signal input terminal of the voltage output module.

[0020] Optionally, the circuit in which the second start switch and the first normally open contact of the third contactor are connected in parallel is connected in series with the coil of the third contactor, the second mode off switch, the first normally closed contact of the second contactor and the second normally closed contact of the fourth contactor, so that the first normally open contact of the third contactor and the coil of the third contactor are connected in series with the DC power output terminal of the power module to form a self-holding circuit.

[0021] The second and third normally open contacts of the third contactor are electrically connected to the signal input terminal of the signal conversion module, respectively; the fourth, fifth, and sixth normally open contacts of the third contactor are electrically connected to the detection signal input terminal of the voltage output module, respectively.

[0022] The circuit in which the third start switch and the first normally open contact of the fourth contactor are connected in parallel is connected in series with the coil of the fourth contactor, the third mode off switch, the second normally closed contact of the second contactor, and the second normally closed contact of the third contactor, so that the first normally open contact of the fourth contactor and the coil of the fourth contactor are connected in series to the DC power output terminal of the power module to form a self-holding circuit.

[0023] The second and third normally open contacts of the fourth contactor are electrically connected to the signal input terminal of the signal conversion module, and the fourth, fifth, and sixth normally open contacts of the fourth contactor are electrically connected to the detection signal input terminal of the voltage output module.

[0024] Optionally, the signal conversion module includes a component interface and an opto-isolated driver, wherein,

[0025] The power supply terminal of the component interface is electrically connected to the first AC power output terminal of the power module. The signal output terminal of the component interface is electrically connected to the first terminal of the second normally open contact of the second contactor, the first terminal of the third normally open contact of the third contactor, the first terminal of the second normally open contact of the third contactor, the first terminal of the third normally open contact of the fourth contactor, and the first terminal of the second normally open contact of the third normally open contact. The component interface is also electrically connected to multiple control components in a plug-in manner.

[0026] The signal input terminal of the opto-isolation driver is electrically connected to the second normally open contact of the second contactor, the second normally open contact of the third contactor, the second normally open contact of the third contactor, the second normally open contact of the fourth contactor, and the second normally open contact of the third contactor. The signal output terminal of the opto-isolation driver is electrically connected to the control signal input terminal of the voltage output module, and the power input terminal of the opto-isolation driver is electrically connected to the first AC power output terminal of the power module.

[0027] Optionally, the voltage output module includes a third transformer, a three-phase bridge rectifier, a reverse feedback diode, and a DC voltage acquisition unit, wherein...

[0028] The input terminal of the third transformer is electrically connected to the second AC power output terminal of the power module. The output terminal of the third transformer is electrically connected to the first terminals of the fourth, fifth, and sixth normally open contacts of the second contactor, respectively. The input terminals of the three-phase bridge rectifier are respectively connected to the second terminals of the fourth, fifth, and sixth normally open contacts of the second contactor. The second terminal, the second terminal of the fourth normally open contact, the second terminal of the fifth normally open contact, the second terminal of the sixth normally open contact, the second terminal of the fourth normally open contact, the second terminal of the fifth normally open contact, and the second terminal of the sixth normally open contact of the fourth contactor are electrically connected. The control terminal of the three-phase bridge rectifier is electrically connected to the detection signal output terminal of the signal conversion module. The positive output terminal of the three-phase bridge rectifier is electrically connected to the anode terminal of the anti-reverse feedback diode. The cathode terminal of the anti-reverse feedback diode is electrically connected to the positive terminal of the DC voltage acquisition unit. The negative terminal of the DC voltage acquisition unit is electrically connected to the negative output terminal of the three-phase bridge rectifier.

[0029] This application also provides a control component detection system, the system including a housing and the aforementioned control component detection device.

[0030] The beneficial effects of this application are as follows: The control component detection device provided by this invention allows multiple control components to be tested to be inserted into the component interface of a signal conversion module. After receiving a trigger operation, the signal trigger module outputs a first detection signal to the signal conversion module and a second detection signal to the voltage output module. The signal conversion module receives the voltage level signal of the control component that matches the trigger operation based on the first detection signal, converts the voltage level signal into a control signal, and outputs it to the voltage output module. The voltage output module converts the AC power into the DC power to be tested based on the second detection signal and the control signal, detects the voltage value of the DC power to be tested, determines whether the voltage value matches the voltage level of the control component, and thus determines the detection result of the control component. By simply inserting the components into this detection device, multiple control components can be tested one by one, avoiding cumbersome operations and improving detection efficiency and safety.

[0031] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0032] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0033] Figure 1 This is a schematic diagram of the structural connection of a control component detection device according to an exemplary embodiment of the present invention;

[0034] Figure 2 A circuit connection diagram of a control component detection device according to an exemplary embodiment of the present invention;

[0035] Figure 3 This is a schematic diagram of the appearance of a control component detection device as an exemplary embodiment of the present invention.

[0036] In the diagram: 12-Power supply module, 14-Signal trigger module, 16-Signal conversion module; 18-Voltage output module; 20-AC power supply; 30-Control components; 121-First transformer unit; 122-Main circuit control unit; 123-Second transformer unit; QF-Circuit breaker, T1-First transformer, D1-First rectifier bridge, SB1-Main circuit start switch, SB2-Main circuit stop switch, KM1-First contactor, T2-Second transformer, D2-Second rectifier bridge, VF-Inverter, T3-Second contactor Three transformers, SB3-first start switch, SB4-first stop switch, K1-second contactor, SB5-second start switch, SB6-second stop switch, K2-third contactor, SB7-third start switch, SB8-third stop switch, K3-fourth contactor, U1-opto-isolated driver, VT1-first thyristor, VT2-second thyristor, VT3-third thyristor, VT4-fourth thyristor, VT5-fifth thyristor, VT6-sixth thyristor, D3-anti-reverse feeding diode. Detailed Implementation

[0037] To overcome the deficiencies in the prior art, the present invention provides a control component detection device. To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention. The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0038] In one embodiment, such as Figure 1 As shown, this application provides a control component detection device, comprising a power supply module 12, a signal triggering module 14, a signal conversion module 16, and a voltage output module 18, wherein...

[0039] The power supply terminal of the power supply module 12 is electrically connected to the AC power supply, the DC power output terminal of the power supply module 12 is electrically connected to the power input terminal of the signal trigger module 14, the first AC power output terminal of the power supply module 12 is electrically connected to the power input terminal of the signal conversion module 16, the second AC power output terminal of the power supply module 12 is electrically connected to the power input terminal of the voltage output module 18, the first detection signal output terminal of the signal trigger module 14 is electrically connected to the signal input terminal of the signal conversion module 16, the second detection signal output terminal of the signal trigger module 14 is electrically connected to the detection signal input terminal of the voltage output module 18, the control signal output terminal of the signal conversion module 16 is electrically connected to the control signal input terminal of the voltage output module 18, and the component interface of the signal conversion module 16 is electrically connected to multiple control components 30 in a plug-in manner.

[0040] The power supply module 12 provides matching power to the signal triggering module 14, the signal conversion module 16, and the voltage output module 18. The signal triggering module 14 generates a first detection signal and a second detection signal in response to a triggering operation. The signal conversion module 16 receives the voltage level signal of the control component 30 through the first detection signal and converts the voltage level signal into a control signal. The voltage output module 18 converts the AC power into the DC power to be measured according to the second detection signal and the control signal, and determines the detection result of the control component 30 according to the voltage value of the DC power to be measured.

[0041] Specifically, multiple control components under test are inserted into the component interface of the signal conversion module. The power supply module provides DC power to the signal trigger module, a first AC power to the signal conversion module, and a second AC power to the voltage output module. After receiving a trigger operation, the signal trigger module outputs a first detection signal to the signal conversion module and a second detection signal to the voltage output module. Since the control components are inserted into the component interface of the signal conversion module, they obtain the first AC power. Each control component outputs a voltage level signal. After receiving the first detection signal from the signal trigger module, the signal conversion module converts the voltage level signal of the control component corresponding to the trigger operation into a control signal and outputs it to the voltage output module. The voltage output module receives the second detection signal from the signal trigger module and the control signal from the signal conversion module, converts the AC power from the second AC power supply into the DC power under test, and detects the voltage value of the DC power under test. If the voltage value matches the voltage level of the control component corresponding to the trigger operation, the control component is considered to be qualified; otherwise, the control component is considered to be unqualified.

[0042] Compared with existing technologies, the control component detection device provided by this invention allows multiple control components to be tested to be inserted into the component interface of a signal conversion module. Upon receiving a trigger operation, the signal triggering module outputs a first detection signal to the signal conversion module and a second detection signal to the voltage output module. The signal conversion module receives the voltage level signal of the control component matching the trigger operation based on the first detection signal, converts this voltage level signal into a control signal, and outputs it to the voltage output module. The voltage output module converts AC power into DC power to be tested based on the second detection signal and the control signal, detects the voltage value of the DC power to be tested, and determines whether the voltage value matches the voltage level of the control component, thereby determining the detection result of the control component. By simply inserting the components into this detection device, multiple control components can be tested one by one, avoiding cumbersome operations and improving detection efficiency and safety.

[0043] In one embodiment, the power module 12 includes a first transformer unit 121, a second transformer unit 123, and a main circuit control unit 122, wherein,

[0044] The power supply terminal of the first transformer unit 121 is electrically connected to the AC power supply. The first AC power output terminal of the first transformer unit 121 is electrically connected to the power input terminal of the signal conversion module 16 and the power input terminal of the second transformer unit 123. The second AC power output terminal of the first transformer unit 121 is electrically connected to the power input terminal of the voltage output module 18. The DC power output terminal of the second transformer unit 123 is electrically connected to the power input terminal of the main circuit control unit 122 and the power input terminal of the signal conversion module 16. The signal output terminal of the main circuit control unit 122 is electrically connected to the signal input terminal of the first transformer unit 121.

[0045] Specifically, the first transformer unit introduces 220V AC power into the device, and then transmits the 220V AC power to the second transformer unit and the signal conversion unit respectively. The signal conversion unit provides operating power to the control components. The second transformer unit converts the 220V AC power into DC power to provide DC power to the main circuit control unit. After receiving the start trigger operation, the main circuit control unit outputs a signal to the first transformer unit. The first transformer unit converts the 220V AC power into three-phase AC power and transmits the three-phase AC power to the voltage output module. After receiving the shut-off trigger operation, the main circuit control unit does not output a signal to the first transformer unit.

[0046] In one embodiment, such as Figure 2 As shown, the main circuit control unit 122 includes a main circuit start switch SB1, a main circuit stop switch SB2, and a first contactor KM1, wherein,

[0047] The circuit in which the main circuit start switch SB1 and the first normally open contact of the first contactor KM1 are connected in parallel is connected in series with the main circuit stop switch SB2 and the coil of the first contactor KM1, so that the first normally open contact of the first contactor KM1 and the coil of the first contactor KM1 are connected in series to the DC power output terminal of the second transformer unit 123 to form a self-holding circuit.

[0048] The second normally open contact and the third normally open contact of the first contactor KM1 are electrically connected to the signal input terminal of the first transformer unit 121, respectively.

[0049] Specifically, after the second transformer unit provides DC power to the main circuit, pressing the main circuit start button SB1 closes the circuit. The DC power supply then flows through the closed SB1, the normally closed main circuit stop button SB2, and the coil of the first contactor KM1 to form a circuit. The coil of the first contactor KM1 is energized, and the first and second normally open contacts of KM1 close, causing the main control circuit to output a signal to the first transformer unit.

[0050] In one embodiment, such as Figure 2 As shown, the first transformer unit 121 includes a circuit breaker QF, a first transformer T1, a first rectifier bridge D1, and a frequency converter VF, wherein,

[0051] The first terminal of the circuit breaker QF is electrically connected to the AC power supply. The second terminal of the circuit breaker QF is electrically connected to the power input terminal of the signal conversion module 16, the power input terminal of the second transformer unit 123, the first terminal of the second normally open contact of the first contactor KM1, and the first terminal of the third normally open contact. The input terminal of the first transformer T1 is electrically connected to the second terminal of the second normally open contact of the first contactor KM1 and the second terminal of the third normally open contact. The output terminal of the first transformer T1 is electrically connected to the input terminal of the first rectifier bridge D1. The output terminal of the first rectifier bridge D1 is electrically connected to the power input terminal of the frequency converter VF. The power output terminal of the frequency converter VF is electrically connected to the power input terminal of the voltage output module 18.

[0052] Specifically, external AC power enters the device via circuit breaker QF, and then the AC power is sent to the signal conversion module and the second transformer unit. When the second and third normally open contacts of the first contactor KM1 in the main control circuit are closed, the AC power from the circuit breaker is then applied to the first transformer T1 via fuse FU1. The first transformer T1 boosts the 220V AC power to 380V. This 380V is then applied to the first rectifier bridge D1 via fuse FU2 for rectification, filtered by a filter capacitor, and surge voltage limited by a resistor before being sent to the frequency converter to be converted into three-phase AC power. This three-phase AC power is then delivered to the voltage output module. To stop the main circuit test, simply press button SB2.

[0053] In one embodiment, such as Figure 2As shown, the second transformer unit 123 includes a second transformer T2 and a second rectifier bridge D2, wherein,

[0054] The input terminal of the second transformer T2 is electrically connected to the first AC power output terminal of the first transformer unit 121. The output terminal of the second transformer T2 is electrically connected to the input terminal of the second rectifier bridge D2. The output terminal of the second rectifier bridge D2 is electrically connected to the power input terminal of the main circuit control unit 122 and the power input terminal of the signal conversion module 16, respectively.

[0055] Specifically, the external AC power supply is applied to the primary side of the second transformer T2 via circuit breaker QF and fuse FU7. At the same time, the secondary side of the second transformer outputs an AC voltage of 24V. This 24V AC voltage is rectified into DC voltage by the second rectifier bridge D2. The DC voltage is then filtered by a capacitor, and then passes through a current-limiting resistor and a power indicator light to form a circuit. When the power indicator light is lit, the control power supply of this device is working normally, and the whole machine enters the standby state.

[0056] In one embodiment, such as Figure 2 As shown, the signal triggering module 14 includes a first mode selection branch, a second mode selection branch, and a third mode selection branch. The first mode selection branch includes a first start switch SB3, a first stop switch SB4, and a second contactor K1. The second mode selection branch includes a second start switch SB5, a second stop switch SB6, and a third contactor K2. The third mode selection branch includes a third start switch SB7, a third stop switch SB8, and a fourth contactor K3.

[0057] The circuit that connects the first start switch SB3 and the first normally open contact of the second contactor K1 in parallel is connected in series with the coil of the second contactor K1, the first mode off switch, the first normally closed contact of the third contactor K2 and the first normally closed contact of the fourth contactor K3, so that the first normally open contact of the second contactor K1 and the coil of the second contactor K1 are connected in series at the DC power output terminal of the power module 12 to form a self-holding circuit.

[0058] The second normally open contact and the third normally open contact of the second contactor K1 are electrically connected to the signal input terminal of the signal conversion module 16, and the fourth normally open contact, the fifth normally open contact and the sixth normally open contact of the second contactor K1 are electrically connected to the detection signal input terminal of the voltage output module 18.

[0059] Specifically, during the I-mode component test, pressing the I-mode start button SB3 closes the circuit. DC power flows through the closed SB3, the coil of the second contactor K1, the normally closed I-mode stop button SB4, the normally closed contacts of the second contactors K2 and K3, forming a circuit. The coil of the second contactor K1 is energized. The normally closed contact of the second contactor K1 opens, while its normally open contact closes. The three-phase AC power from the third transformer is applied to the three-phase rectifier bridge (six thyristors VT1-VT6) of the voltage output module via the fourth, fifth, or sixth normally open contact of the second contactor K1, and is in a waiting-for-rectification state. Simultaneously, DC power flows through the closed seventh normally open contact of the second contactor K1, through a current-limiting resistor, and through the I-mode operation indicator light, forming a circuit. The I-mode operation indicator light is energized and illuminates, indicating that I-mode is in operation.

[0060] At the same time, the control component signal is applied to the signal conversion module via the second normally open contact and the third normally open contact of the second contactor K1, and the signal conversion module outputs the control signal to the voltage output module.

[0061] In one embodiment, such as Figure 2 As shown, the circuit in which the second start switch SB5 and the first normally open contact of the third contactor K2 are connected in parallel is connected in series with the coil of the third contactor K2, the second mode off switch, the first normally closed contact of the second contactor K1 and the second normally closed contact of the fourth contactor K3, so that the first normally open contact of the third contactor K2 and the coil of the third contactor K2 are connected in series at the DC power output terminal of the power module 12 to form a self-holding circuit;

[0062] The second normally open contact and the third normally open contact of the third contactor K2 are electrically connected to the signal input terminal of the signal conversion module 16, and the fourth normally open contact, the fifth normally open contact and the sixth normally open contact of the third contactor K2 are electrically connected to the detection signal input terminal of the voltage output module 18.

[0063] The circuit that connects the third start switch SB7 and the first normally open contact of the fourth contactor K3 in parallel is connected in series with the coil of the fourth contactor K3, the third mode off switch, the second normally closed contact of the second contactor K1 and the second normally closed contact of the third contactor K2, so that the first normally open contact of the fourth contactor K3 and the coil of the fourth contactor K3 are connected in series at the DC power output terminal of the power module 12 to form a self-holding circuit.

[0064] The second and third normally open contacts of the fourth contactor K3 are electrically connected to the signal input terminal of the signal conversion module 16, and the fourth, fifth, and sixth normally open contacts of the fourth contactor K3 are electrically connected to the detection signal input terminal of the voltage output module 18.

[0065] Specifically, during the II mode component test, pressing the II mode start button SB5 closes the circuit. DC power flows through the closed SB5, the coil of the third contactor K2, the normally closed II mode stop button SB6, the normally closed contacts of the second contactor K1 and the fourth contactor K3, forming a circuit. The coil of the third contactor K2 is energized. The normally closed contact of the third contactor K2 opens, while its normally open contact closes. The three-phase AC power output from the third transformer is applied to the three-phase rectifier bridge (six thyristors VT1-VT6) of the voltage output module via the fourth, fifth, or sixth normally open contacts of the third contactor K2, and is in a waiting rectification state. Simultaneously, DC power flows through the closed seventh normally open contact of the third contactor K2, through the current-limiting resistor, and through the II mode operation indicator light, forming a circuit. The II mode operation indicator light is energized and illuminates, indicating that II mode is in operation.

[0066] Meanwhile, the control component signal II is applied to the signal conversion module via the second normally open contact and the third normally open contact of the third contactor K2, and the signal conversion module outputs the control signal to the voltage output module.

[0067] During the III mode component test, pressing the III mode start button SB7 closes the circuit. DC power flows through the closed SB7, the coil of the fourth contactor K3, the normally closed III mode stop button SB8, the normally closed contacts of the second contactor K1 and the third contactor K2, forming a circuit. The coil of the fourth contactor K3 is energized. The normally closed contact of the fourth contactor K3 opens, while its normally open contact closes. The three-phase AC power output from the third transformer is applied to the three-phase rectifier bridge (six thyristors VT1-VT6) of the voltage output module via the fourth, fifth, or sixth normally open contact of the fourth contactor K3, and is in a standby rectification state. Simultaneously, DC power flows through the closed seventh normally open contact of the fourth contactor K3, through the current-limiting resistor, and through the III mode operation indicator light, forming a circuit. The III mode operation indicator light is energized and illuminates, indicating that III mode is in operation.

[0068] Meanwhile, the signal from control component III is applied to the signal conversion module via the second and third normally open contacts of the fourth contactor K3, and the signal conversion module outputs a control signal to the voltage output module.

[0069] In one embodiment, such as Figure 2 As shown, the signal conversion module 16 includes a component interface and an opto-isolated driver U1, wherein,

[0070] The power supply terminal of the component interface is electrically connected to the first AC power output terminal of the power module 12. The signal output terminal of the component interface is electrically connected to the first terminal of the second normally open contact of the second contactor K1, the first terminal of the third normally open contact of the third contactor K2, the first terminal of the second normally open contact of the third normally open contact, and the first terminal of the second normally open contact of the fourth contactor K3. The component interface is also electrically connected to multiple control components 30 in a plug-in manner.

[0071] The signal input terminal of the opto-isolation driver U1 is electrically connected to the second normally open contact of the second contactor K1, the second normally open contact of the third contactor K2, the second normally open contact of the third contactor K2, and the second normally open contact of the fourth contactor K3. The signal output terminal of the opto-isolation driver U1 is electrically connected to the control signal input terminal of the voltage output module 18, and the power input terminal of the opto-isolation driver U1 is electrically connected to the first AC power output terminal of the power module 12.

[0072] Specifically, external AC power is applied to the opto-isolated driver via circuit breaker QF and fuse, and the opto-isolated driver enters a standby state. External AC power is then applied to control components I, II, and III via circuit breaker QF and fuses respectively, and all three control components enter a standby state.

[0073] Each of the three control components has two output terminals, and the opto-isolation driver has two input terminals. The two output terminals of control component I are respectively connected to the first terminal of the second normally open contact and the first terminal of the third normally open contact of the second contactor K1. The second terminal of the second normally open contact and the second terminal of the third normally open contact of the second contactor K1 are respectively connected to the two input terminals of the opto-drive isolator. The two output terminals of control component II are respectively connected to the first terminal of the second normally open contact and the first terminal of the third normally open contact of the third contactor K2. The second terminal of the second normally open contact and the second terminal of the third normally open contact of the third contactor K2 are respectively connected to the two input terminals of the opto-drive isolator. The two output terminals of control component III are respectively connected to the first terminal of the second normally open contact and the first terminal of the third normally open contact of the fourth contactor K3. The second terminal of the second normally open contact and the second terminal of the third normally open contact of the fourth contactor K3 are respectively connected to the two input terminals of the opto-drive isolator.

[0074] When the start switch of the I control component is pressed, the coil of the second contactor is energized, the normally open contact of the second contactor closes, and the output signal of the I control component is input to the opto-isolation driver through the closed second normally open contact and the third normally open contact of the second contactor. The opto-isolation driver then converts it into a control signal and sends it to the voltage output module.

[0075] When the start switch of the II control component is pressed, the coil of the third contactor is energized, the normally open contact of the third contactor closes, and the output signal of the II control component is input to the opto-isolation driver through the closed second and third normally open contacts of the third contactor. The opto-isolation driver then converts the signal into a control signal and sends it to the voltage output module.

[0076] When the start switch of the III control component is pressed, the coil of the fourth contactor is energized, the normally open contact of the fourth contactor closes, and the output signal of the III control component is input to the opto-isolation driver through the closed second and third normally open contacts of the fourth contactor. The opto-isolation driver then converts the signal into a control signal and sends it to the voltage output module.

[0077] In one embodiment, such as Figure 2 As shown, the voltage output module 18 includes a third transformer T3, a three-phase bridge rectifier, anti-reverse diodes, and a DC voltage acquisition unit.

[0078] The input terminal of the third transformer T3 is electrically connected to the second AC power output terminal of the power module 12. The output terminal of the third transformer T3 is electrically connected to the first terminal of the fourth normally open contact, the first terminal of the fifth normally open contact, the first terminal of the sixth normally open contact of the second contactor K1, the first terminal of the fourth normally open contact, the first terminal of the fifth normally open contact, the first terminal of the sixth normally open contact of the third contactor K2, and the first terminal of the fourth normally open contact, the first terminal of the fifth normally open contact, and the first terminal of the sixth normally open contact of the fourth contactor K3. The input terminal of the three-phase bridge rectifier is connected to the second terminal of the fourth normally open contact, the second terminal of the fifth normally open contact of the second contactor K1, and the second terminal of the fifth normally open contact. The second terminal of the sixth normally open contact, the second terminals of the fourth, fifth, and sixth normally open contacts of the third contactor K2, and the second terminals of the fourth, fifth, and sixth normally open contacts of the fourth contactor K3 are electrically connected. The control terminal of the three-phase bridge rectifier is electrically connected to the detection signal output terminal of the signal conversion module 16. The positive output terminal of the three-phase bridge rectifier is electrically connected to the anode terminal of the anti-reverse feedback diode. The cathode terminal of the anti-reverse feedback diode is electrically connected to the positive terminal of the DC voltage acquisition unit. The negative terminal of the DC voltage acquisition unit is electrically connected to the negative output terminal of the three-phase bridge rectifier.

[0079] Specifically, the third transformer outputs three sets of three-phase AC power. The three-phase bridge rectifier consists of six thyristors. The first, second, third, fourth, fifth, and sixth output terminals of the opto-isolation driver are electrically connected to the control terminals of the first thyristor VT1, the second thyristor VT2, the third thyristor VT3, the fourth thyristor VT4, the fifth thyristor VT5, and the sixth thyristor VT6, respectively.

[0080] The first, second, and third phase output terminals of the first group of three-phase AC power of the third transformer are connected one-to-one with the first terminals of the fourth, fifth, and sixth normally open contacts of the second contactor; the first, second, and third phase output terminals of the second group of three-phase AC power of the third transformer are connected one-to-one with the first terminals of the fourth, fifth, and sixth normally open contacts of the third contactor; the first, second, and third phase output terminals of the third group of three-phase AC power of the third transformer are connected one-to-one with the first terminals of the fourth, fifth, and sixth normally open contacts of the fourth contactor.

[0081] The anode of the first thyristor VT1 is electrically connected to the cathode of the second thyristor VT2, the second terminal of the fourth normally open contact of the second contactor, the second terminal of the fourth normally open contact of the third contactor, and the second terminal of the fourth normally open contact of the fourth contactor. The cathode of the first thyristor VT1 is electrically connected to the anode of the anti-reverse feeding diode.

[0082] The anode of the third thyristor VT3 is electrically connected to the cathode of the fourth thyristor VT4, the second terminal of the fifth normally open contact of the second contactor, the second terminal of the fifth normally open contact of the third contactor, and the second terminal of the fifth normally open contact of the fourth contactor. The cathode of the third thyristor VT3 is electrically connected to the anode of the anti-reverse feeding diode.

[0083] The anode of the fifth thyristor VT5 is electrically connected to the cathode of the sixth thyristor VT6, the second terminal of the sixth normally open contact of the second contactor, the second terminal of the sixth normally open contact of the third contactor, and the second terminal of the sixth normally open contact of the fourth contactor. The cathode of the fifth thyristor VT5 is electrically connected to the anode of the reverse feedback diode. The cathode of the reverse feedback diode is electrically connected to the positive terminal of the DC voltage to be measured. The anodes of the second thyristor VT2, the fourth thyristor VT4, and the sixth thyristor VT6 are electrically connected to the negative terminal of the DC voltage to be measured.

[0084] When the start switch of the I control component is pressed, the coil of the second contactor is energized, and the normally open contact of the second contactor closes. The output signal of the I control component is input to the opto-isolated driver through the closed second and third normally open contacts of the second contactor. The opto-isolated driver then converts the signal into a control signal and sends it to the six thyristors. The first group of three-phase AC power from the third transformer is input to the six thyristors through the closed fourth, fifth, and sixth normally open contacts of the second contactor. The six thyristors rectify the first group of three-phase AC power and output 48V DC power. The 48V DC power is sent to the voltmeter V1 and the measurement port by the anti-reverse diode, and then the measurement is completed using a special device.

[0085] When the start switch of the II control component is pressed, the coil of the third contactor is energized, and the normally open contact of the third contactor closes. The output signal of the II control component is input to the opto-isolated driver through the closed second and third normally open contacts of the third contactor. The opto-isolated driver then converts the signal into a control signal and sends it to the six thyristors. The second set of three-phase AC power from the third transformer is input to the six thyristors through the closed fourth, fifth, and sixth normally open contacts of the third contactor. The six thyristors rectify the second set of three-phase AC power and output 110V DC power. The 110V DC power is sent to the voltmeter V1 and the measurement port by the anti-reverse diode, and then the measurement is completed using a special device.

[0086] When the start switch of control component III is pressed, the coil of the fourth contactor is energized, and the normally open contact of the fourth contactor closes. The output signal of control component III is input to the opto-isolated driver through the closed second and third normally open contacts of the fourth contactor. The opto-isolated driver then converts the signal into a control signal and sends it to the six thyristors. The third set of three-phase AC power from the third transformer is input to the six thyristors through the closed fourth, fifth, and sixth normally open contacts of the fourth contactor. The six thyristors rectify the third set of three-phase AC power and output 220V DC power. The 220V DC power is sent to voltmeter V1 and the measurement port by the anti-reverse diode, and then the measurement is completed using special equipment.

[0087] This application also provides a control component detection system, the system including a housing and the aforementioned control component detection device.

[0088] In one embodiment, such as Figure 3As shown, enclosure 1 has an external AC power interface, a standard single-phase power interface, for external power supply connection. A main circuit start button SB1 is a normally open push-button switch for main circuit start control. A main circuit stop button SB2 is a normally closed push-button switch for main circuit stop control. There are one I-mode start button SB3 (normally open), one I-mode stop button SB4 (normally closed), one II-mode start button SB5 (normally open), one II-mode stop button SB6 (normally closed), one III-mode start button SB7 (normally open), and one III-mode stop button SB8 (normally closed). A circuit breaker QF serves as the overall power switch. A power indicator light is an LED used to display the power status. There are three LEDs: one I-mode run indicator light, one II-mode run indicator light, and one III-mode run indicator light, used to display the mode operation status. A voltmeter V1 is a DC voltmeter with a range of 0-500V, used to monitor the overall output DC voltage. One measurement port "17" consists of two φ3.5mm interfaces (one positive and one negative) for external waveform and voltage measurements. One component interface slot "18" is for component insertion.

[0089] It should be understood that various modifications can be made to the embodiments described herein. Therefore, the above description should not be considered as limiting, but merely as an example of embodiments. Other modifications within the scope and spirit of this application will be apparent to those skilled in the art.

[0090] The accompanying drawings, which are included in and form part of this specification, illustrate embodiments of the present application and, together with the general description of the present application given above and the detailed description of the embodiments given below, serve to explain the principles of the present application.

[0091] These and other features of this application will become apparent from the following description of preferred forms of embodiments given as non-limiting examples, with reference to the accompanying drawings.

[0092] It should also be understood that although this application has been described with reference to some specific examples, those skilled in the art can certainly implement many other equivalent forms of this application.

[0093] The above and other aspects, features and advantages of this application will become more apparent when taken in conjunction with the accompanying drawings and in view of the following detailed description.

[0094] Specific embodiments of this application are described thereafter with reference to the accompanying drawings; however, it should be understood that the claimed embodiments are merely examples of this application, which can be implemented in various ways. Well-known and / or repeated functions and structures are not described in detail to avoid unnecessary or redundant details that could obscure the application. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but merely serve as the basis and representative basis for the claims to teach those skilled in the art to use this application in a variety of substantially any suitable detailed structures.

[0095] This specification may use the phrases “in one embodiment,” “in another embodiment,” “in yet another embodiment,” or “in other embodiments,” all of which may refer to one or more of the same or different embodiments according to this application.

[0096] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A control component detection device for detecting multiple control components under test, characterized in that, The device includes a power supply module, a signal triggering module, a signal conversion module, and a voltage output module, wherein, The power supply module's power terminal is electrically connected to an AC power source, the power supply module's DC power output terminal is electrically connected to the power input terminal of the signal trigger module, the power supply module's first AC power output terminal is electrically connected to the power input terminal of the signal conversion module, the power supply module's second AC power output terminal is electrically connected to the power input terminal of the voltage output module, the signal trigger module's first detection signal output terminal is electrically connected to the signal input terminal of the signal conversion module, the signal trigger module's second detection signal output terminal is electrically connected to the detection signal input terminal of the voltage output module, the signal conversion module's control signal output terminal is electrically connected to the control signal input terminal of the voltage output module, and the signal conversion module's component interface is electrically connected to multiple control components via a plug-in method. The power supply module provides matching power to the signal triggering module, the signal conversion module, and the voltage output module. The signal triggering module generates a first detection signal and a second detection signal in response to a triggering operation. The signal conversion module receives a voltage level signal from the control component via the first detection signal and converts the voltage level signal into a control signal. The voltage output module converts AC power into DC power to be measured based on the second detection signal and the control signal, and determines the detection result of the control component based on the voltage value of the DC power to be measured. The signal triggering module includes a first mode selection branch, a second mode selection branch, and a third mode selection branch. The first mode selection branch includes a first start switch, a first stop switch, and a second contactor. The second mode selection branch includes a second start switch, a second stop switch, and a third contactor. The third mode selection branch includes a third start switch, a third stop switch, and a fourth contactor. The circuit in which the first start switch and the first normally open contact of the second contactor are connected in parallel is connected in series with the coil of the second contactor, the first mode off switch, the first normally closed contact of the third contactor and the first normally closed contact of the fourth contactor, so that the first normally open contact of the second contactor and the coil of the second contactor are connected in series to the DC power output terminal of the power module to form a self-holding circuit. The second normally open contact and the third normally open contact of the second contactor are electrically connected to the signal input terminal of the signal conversion module, and the fourth normally open contact, the fifth normally open contact and the sixth normally open contact of the second contactor are electrically connected to the detection signal input terminal of the voltage output module. The circuit in which the second start switch and the first normally open contact of the third contactor are connected in parallel is connected in series with the coil of the third contactor, the second mode off switch, the first normally closed contact of the second contactor and the second normally closed contact of the fourth contactor, so that the first normally open contact of the third contactor and the coil of the third contactor are connected in series with the DC power output terminal of the power module to form a self-holding circuit. The second and third normally open contacts of the third contactor are electrically connected to the signal input terminal of the signal conversion module, respectively; the fourth, fifth, and sixth normally open contacts of the third contactor are electrically connected to the detection signal input terminal of the voltage output module, respectively. The circuit in which the third start switch and the first normally open contact of the fourth contactor are connected in parallel is connected in series with the coil of the fourth contactor, the third mode off switch, the second normally closed contact of the second contactor, and the second normally closed contact of the third contactor, so that the first normally open contact of the fourth contactor and the coil of the fourth contactor are connected in series to the DC power output terminal of the power module to form a self-holding circuit. The second normally open contact and the third normally open contact of the fourth contactor are electrically connected to the signal input terminal of the signal conversion module, and the fourth normally open contact, the fifth normally open contact and the sixth normally open contact of the fourth contactor are electrically connected to the detection signal input terminal of the voltage output module. The signal conversion module includes a component interface and an opto-isolated driver, wherein, The power supply terminal of the component interface is electrically connected to the first AC power output terminal of the power module. The signal output terminal of the component interface is electrically connected to the first terminal of the second normally open contact of the second contactor, the first terminal of the third normally open contact of the third contactor, the first terminal of the second normally open contact of the third contactor, the first terminal of the third normally open contact of the fourth contactor, and the first terminal of the second normally open contact of the third normally open contact. The component interface is also electrically connected to multiple control components in a plug-in manner. The signal input terminal of the opto-isolation driver is electrically connected to the second normally open contact of the second contactor, the second normally open contact of the third contactor, the second normally open contact of the third contactor, the second normally open contact of the fourth contactor, and the second normally open contact of the third contactor. The signal output terminal of the opto-isolation driver is electrically connected to the control signal input terminal of the voltage output module, and the power input terminal of the opto-isolation driver is electrically connected to the first AC power output terminal of the power module.

2. The control component detection device according to claim 1, characterized in that, The power module includes a first transformer unit, a second transformer unit, and a main circuit control unit, wherein, The power supply terminal of the first transformer unit is electrically connected to the AC power supply. The first AC power output terminal of the first transformer unit is electrically connected to the power input terminal of the signal conversion module and the power input terminal of the second transformer unit. The second AC power output terminal of the first transformer unit is electrically connected to the power input terminal of the voltage output module. The DC power output terminal of the second transformer unit is electrically connected to the power input terminal of the main circuit control unit and the power input terminal of the signal conversion module. The signal output terminal of the main circuit control unit is electrically connected to the signal input terminal of the first transformer unit.

3. The control component detection device according to claim 2, characterized in that, The main circuit control unit includes a main circuit start switch, a main circuit stop switch, and a first contactor, wherein, The circuit in which the main circuit start switch and the first normally open contact of the first contactor are connected in parallel is connected in series with the main circuit stop switch and the coil of the first contactor, so that the first normally open contact of the first contactor and the coil of the first contactor are connected in series at the DC power output terminal of the second transformer unit to form a self-holding circuit. The second normally open contact and the third normally open contact of the first contactor are electrically connected to the signal input terminal of the first transformer unit, respectively.

4. The control component detection device according to claim 3, characterized in that, The first transformer unit includes a circuit breaker, a first transformer, a first rectifier bridge, and a frequency converter, wherein, The first terminal of the circuit breaker is electrically connected to the AC power supply. The second terminal of the circuit breaker is electrically connected to the power input terminal of the signal conversion module, the power input terminal of the second transformer unit, the first terminal of the second normally open contact of the first contactor, and the first terminal of the third normally open contact. The input terminal of the first transformer is electrically connected to the second terminal of the second normally open contact of the first contactor and the second terminal of the third normally open contact. The output terminal of the first transformer is electrically connected to the input terminal of the first rectifier bridge. The output terminal of the first rectifier bridge is electrically connected to the power input terminal of the frequency converter. The power output terminal of the frequency converter is electrically connected to the power input terminal of the voltage output module.

5. The control component detection device according to claim 2, characterized in that, The second transformer unit includes a second transformer and a second rectifier bridge, wherein, The input terminal of the second transformer is electrically connected to the first AC power output terminal of the first transformer unit, the output terminal of the second transformer is electrically connected to the input terminal of the second rectifier bridge, and the output terminal of the second rectifier bridge is electrically connected to the power input terminal of the main circuit control unit and the power input terminal of the signal conversion module, respectively.

6. The control component detection device according to claim 1, characterized in that, The voltage output module includes a third transformer, a three-phase bridge rectifier, anti-reverse diodes, and a DC voltage acquisition unit. The input terminal of the third transformer is electrically connected to the second AC power output terminal of the power module. The output terminal of the third transformer is electrically connected to the first terminals of the fourth, fifth, and sixth normally open contacts of the second contactor, respectively. The input terminals of the three-phase bridge rectifier are respectively connected to the second terminals of the fourth, fifth, and sixth normally open contacts of the second contactor. The second terminal, the second terminal of the fourth normally open contact, the second terminal of the fifth normally open contact, the second terminal of the sixth normally open contact, the second terminal of the fourth normally open contact, the second terminal of the fifth normally open contact, and the second terminal of the sixth normally open contact of the fourth contactor are electrically connected. The control terminal of the three-phase bridge rectifier is electrically connected to the detection signal output terminal of the signal conversion module. The positive output terminal of the three-phase bridge rectifier is electrically connected to the anode terminal of the anti-reverse feedback diode. The cathode terminal of the anti-reverse feedback diode is electrically connected to the positive terminal of the DC voltage acquisition unit. The negative terminal of the DC voltage acquisition unit is electrically connected to the negative output terminal of the three-phase bridge rectifier.

7. A control component detection system, characterized in that, The system includes a housing and a control component detection device as described in any one of claims 1 to 6.

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