Detection device for power module of industrial personal computer

Abstract

The utility model relates to the technical field of motors, and provides a detection device for a power module of an industrial personal computer, which is applied to the power module of the industrial personal computer and comprises a power supply conversion module used for accessing commercial power and converting the commercial power into a 24V power supply signal for output; the load module is in coupled connection with the industrial personal computer power supply module, comprises a plurality of load units and is used for accessing power supply signals with different voltage values; the restart fault detection circuit comprises a heavy-load timing unit and a heavy-load counting unit, the heavy-load timing unit and the heavy-load counting unit are both in signal connection with the industrial personal computer power module, the heavy-load timing unit receives and displays the heavy-load loading duration, and the heavy-load counting unit receives and displays the heavy-load loading times. According to the invention, a purpose of facilitating a worker to timely obtain an operation state and a heavy load test result of the industrial personal computer power supply module under a heavy load condition is realized.

Description

Technical Field

[0001] This application relates to the technical field of power module testing, and in particular to a testing device for power modules of industrial control computers. Background Technology

[0002] In the field of industrial automation, industrial control computers (ICCs) are core control devices, and the performance of their power supply modules directly affects the stability and reliability of the entire industrial control system. With the continuous development of industrial production and the increasing advancement of technology, the performance requirements for ICC power supply modules are also becoming increasingly stringent.

[0003] In the load testing of industrial PC power supply modules, existing testing methods have significant shortcomings in fault detection and heavy-load testing. In actual industrial operating environments, industrial PC power supply modules may face frequent heavy-load conditions, and existing testing devices cannot accurately record the duration and frequency of these heavy-load loads. This makes it difficult for operators to understand the power supply module's operating status under heavy-load conditions and to promptly identify potential problems. Utility Model Content

[0004] To address the issue that staff cannot promptly obtain information on the operating status and test results of industrial computer power supply modules under heavy load conditions, this application provides a testing device for industrial computer power supply modules.

[0005] This application provides a testing device for an industrial control computer power supply module, which adopts the following technical solution:

[0006] A testing device for an industrial control computer power supply module, applied to an industrial control computer power supply module, comprising:

[0007] The power conversion module is used to connect to AC power and convert the AC power into a 24V power signal output;

[0008] A load module is coupled to the power supply module of the industrial computer. The load module includes multiple load units for receiving power signals of different voltage values.

[0009] The restart fault detection circuit includes a heavy load timing unit and a heavy load counting unit. Both the heavy load timing unit and the heavy load counting unit are connected to the power supply module of the industrial control computer. The heavy load timing unit receives and displays the duration of the heavy load, and the heavy load counting unit receives and displays the number of heavy loads.

[0010] By adopting the above technical solution, after the industrial control computer power supply module receives a power signal, it converts it into power signals of different voltage values ​​and outputs them. Different voltage values ​​can be applied through different load units to realize the testing operation of the industrial control computer power supply module. At the same time, by restarting the fault detection circuit, it is convenient for staff to identify the test status of the industrial control computer power supply module under test, including at least the duration of heavy load, the number of heavy loads, and the number of failures. This allows staff to obtain the operating status and test results of the industrial control computer power supply module under heavy load conditions in a timely manner.

[0011] Preferably, the plurality of load units are defined as 3.3V load unit, 5V load unit and 12V load unit respectively. Each load unit includes a fixed load and an adjustable load with a corresponding voltage value. The adjustable load is gradually increased until it is fully loaded to the power supply module of the industrial control computer.

[0012] By adopting the above technical solution, different voltage signals output by the industrial computer power supply module can be loaded onto different load units by using multiple load units corresponding to different voltage values; at the same time, the power supply can be fully loaded by using fixed loads and adjustable loads, so as to achieve the purpose of testing the industrial computer power supply module.

[0013] Preferably, it further includes a heavy-load test control circuit, wherein the input signal of the heavy-load test control circuit is connected to the power supply module of the industrial computer, and the output signal of the heavy-load test control circuit is connected to the corresponding load unit.

[0014] By adopting the above technical solution, the heavy load test control circuit can control whether the power signal of the industrial computer power module is applied to different load units, thereby completing the control of heavy load loading. Power signals with different voltage values ​​can be applied to different load units respectively, without the need to replace different loads to test the same industrial computer power module.

[0015] Preferably, the power conversion module is further connected to a load cooling fan, and the control terminal of the load cooling fan is connected to a first delay control circuit, which is connected to the industrial computer power module.

[0016] By adopting the above technical solution, the power conversion module provides a power signal to the load cooling fan, and the industrial control computer power module controls the first delay control circuit to achieve the purpose of delaying the start and stop of the load cooling fan, which can effectively remove the heat generated by the load after the power signal is applied.

[0017] Preferably, the power conversion module is further connected to a temperature sensor and a comparator, with the output of the temperature sensor connected to the input of the comparator and the output of the comparator connected to the power module of the industrial computer.

[0018] By adopting the above technical solution, the temperature of the current load is detected by a temperature sensor and compared with the set temperature value or the signal corresponding to the set temperature value to determine whether the load temperature is too high. This allows it to know whether the load cooling fan has started to dissipate heat, making it easier for staff to detect load cooling fan malfunctions in a timely manner.

[0019] Preferably, the detection device further includes a heat dissipation module, which includes at least an external cooling fan and an internal cooling fan. The external cooling fan is disposed on the detection device, and the internal cooling fan is disposed within the industrial computer power supply module. The industrial computer power supply module outputs power signals and control signals to the external cooling fan and the internal cooling fan.

[0020] By adopting the above technical solution, power and control signals are provided by the external and internal cooling fans of the industrial computer power module to control the operation of the external and internal cooling fans. At the same time, the rotation of the external and internal cooling fans can remove the heat generated by the industrial computer power module, reducing the probability of damage or even safety accidents caused by overheating.

[0021] Preferably, the heat dissipation module further includes a second delay control circuit, the input signal of which is connected to the industrial computer power supply module, and the output signal of which is connected to the external cooling fan and the internal cooling fan.

[0022] By adopting the above technical solution and setting the second delay control circuit, the external cooling fan and the internal cooling fan are turned on with a delay when the industrial computer power module starts working; and the external cooling fan and the internal cooling fan are turned off with a delay when the industrial computer power module stops working. Through the above two processes, the two fans can be effectively controlled to remove the heat generated by the industrial computer power module and save energy.

[0023] Preferably, the power conversion module is connected to a voltage and current meter, which displays the output voltage and output current signals of the power conversion module.

[0024] By adopting the above technical solution, staff can easily monitor the power supply status of the current power conversion module outputting 24V in real time, such as whether the specific voltage value is stable at around 24V, the magnitude of the output current, etc., and can intuitively understand the power supply situation.

[0025] Preferably, a first control switch U1 is connected between the industrial computer power supply module and the voltage and current meter. The control terminal of the first control switch U1 is connected to a first switch control circuit, and the first switch control circuit is connected to the industrial computer power supply module.

[0026] By adopting the above technical solution, the industrial control computer power module controls the opening and closing of the first control switch U1 through the first switch control circuit, thereby realizing the display operation of the voltage and current meters.

[0027] In summary, after the industrial computer power supply module receives a power signal, it converts it into power signals of different voltage values ​​and outputs them. Different voltage values ​​can be applied through different load units to enable the testing of the industrial computer power supply module. At the same time, by restarting the fault detection circuit, the operator can easily identify the current test status of the industrial computer power supply module, including at least the duration of heavy load, the number of heavy loads, and the number of failures. This allows the operator to promptly obtain the operating status and test results of the industrial computer power supply module under heavy load conditions. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the circuit structure of this application.

[0029] Reference numerals: 1. Power conversion module; 2. Load module; 21. 3.3V load unit; 22. 5V load unit; 23. 12V load unit; 24. Second switch control circuit; 25. Third switch control circuit; 26. Fourth switch control circuit; 27. Fixed load; 28. Adjustable load; 3. Restart fault detection circuit; 31. Heavy load timing unit; 32. Heavy load counting unit; 4. Voltage and current meter; 5. First switch control circuit; 6. Load cooling fan; 61. First delay control circuit; 7. Heat dissipation module; 71. External cooling fan; 72. Internal cooling fan; 73. Second delay control circuit; 81. Temperature sensor; 82. Comparator; 10. Industrial computer power supply module. Detailed Implementation

[0030] Referring to the accompanying drawings and specific embodiments, the composition, features, and advantages of the motor current sampling circuit, sampling method, and sampling device according to this application will be described by way of example below. However, all descriptions should not be construed as limiting this application in any way.

[0031] Furthermore, for any single technical feature described or implied in the embodiments mentioned herein, or any single technical feature shown or implied in the accompanying drawings, this application still allows for any combination or deletion of these technical features (or their equivalents) without any technical obstacle, and thus these further embodiments according to this application should also be considered within the scope of this description.

[0032] It should also be noted that terms such as "setup" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can refer to a direct connection or an indirect connection through an intermediate medium. Unless otherwise explicitly defined, those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] Figure 1 This is a schematic diagram of one embodiment of a testing device for an industrial control computer power supply module according to this application.

[0034] A testing device for an industrial computer power supply module is used for testing an industrial computer power supply module 10. It includes a power conversion module 1, a load module 2, and a restart fault detection circuit 3. The above modules and circuits work together to complete various test tasks of the industrial computer power supply module 10, providing a reliable basis for evaluating the performance of the power supply module.

[0035] The following is a detailed introduction to each module and circuit.

[0036] Power conversion module 1 is mainly used to connect to AC mains power and convert it into a 24V voltage signal output. In actual circuit design, power conversion module 1 can adopt AC-DC conversion circuit technology.

[0037] First, after the mains power (taking the common 220V AC as an example) is connected, it is stepped down by a transformer with an appropriate turns ratio, converting the high-voltage mains power into a relatively low AC voltage. The design parameters of this transformer are precisely calculated to ensure that the output AC voltage can meet the requirements of subsequent rectification and filtering.

[0038] Next, the stepped-down AC voltage enters the rectifier bridge circuit. The rectifier bridge can consist of four diodes, which convert AC to DC in a specific connection configuration. In this process, the unidirectional conductivity of the diodes plays a crucial role, enabling both the positive and negative half-cycles of the AC current to be converted into DC output in the same direction.

[0039] However, the rectified DC voltage still has some ripple. To obtain a more stable and pure DC voltage, further processing is required through a filter circuit. Filter circuits typically consist of components such as capacitors and inductors. Capacitors store charge, absorbing it when the voltage rises and releasing it when the voltage falls, thus smoothing the voltage. Inductors impede current changes, further reducing ripple. Through the combined effect of capacitors and inductors, a stable 24V DC power signal is ultimately output.

[0040] To monitor the output voltage and current of the power conversion module 1 in real time, this embodiment of the application includes a voltmeter and ammeter 4 in the detection device. The voltmeter and ammeter 4 can be a high-precision digital voltmeter and ammeter integrated module, capable of simultaneously measuring and displaying the voltage and current signals output by the power conversion module 1.

[0041] A first control switch U1 is connected between the industrial computer power supply module 10 and the voltmeter / ammeter 4. The first control switch U1 can be a control element such as a relay or an electronic switch. Among them, the relay controls the closing and opening of the contacts through electromagnetic force to realize the circuit switching; the electronic switch uses the conduction and cutoff characteristics of semiconductor devices to control the circuit.

[0042] The control terminal of the first control switch U1 is connected to the first switch control circuit 5, which is powered by the industrial computer power supply module 10. The first switch control circuit 5 can be a logic circuit or a microcontroller-based control circuit, as long as it can control the aforementioned solenoid valve or electronic switch. When it is necessary to measure the output voltage and current of the power conversion module 1, the industrial computer power supply module 10 sends a control signal to the first switch control circuit 5. After receiving the signal, the first switch control circuit 5 outputs a control signal to close the first control switch U1, connecting the voltmeter and ammeter 4 to the circuit. At this time, the voltmeter and ammeter 4 begins to measure and display the output voltage and current signals of the power conversion module 1.

[0043] When measurement is not required, the industrial computer power module 10 sends another control signal to the first switch control circuit 5. The first switch control circuit 5 outputs a corresponding control signal to disconnect the first control switch U1, thus isolating the voltage and current meters 4 from the circuit and avoiding unnecessary interference to the circuit.

[0044] The load module 2 is tightly coupled to the industrial computer power supply module 10. By simulating different load conditions, the performance of the industrial computer power supply module 10 is comprehensively tested. In this embodiment, the load module 2 includes multiple load units. In this embodiment, the load module 2 includes three load units, defined as a 3.3V load unit 21, a 5V load unit 22, and a 12V load unit 23. A heavy-load test control circuit is provided between each load unit and the industrial computer power supply module 10, as detailed below:

[0045] A second control switch U2 is provided between the 3.3V load unit 21 and the industrial computer power supply module 10. The second control switch U2 can be a relay or electronic switch. The control terminal signal of the second control switch U2 is connected to a second switch control circuit 24, which is powered by the industrial computer power supply module 10. The second switch control circuit 24 can be a logic circuit or a microcontroller-based control circuit, as long as it can control the aforementioned solenoid valve or electronic switch. It can be understood that the second control switch U2 and the second switch control circuit 24 constitute the heavy-load test control circuit corresponding to the 3.3V load unit 21.

[0046] Similarly, a third control switch U3 is provided between the 5V load unit 22 and the industrial computer power supply module 10. The third control switch U3 can be a relay or electronic switch. The control terminal signal of the third control switch U3 is connected to the third switch control circuit 25, and the third switch control circuit 25 is powered by the industrial computer power supply module 10. The third switch control circuit 25 can be a logic circuit or a microcontroller-based control circuit, as long as it can control the aforementioned solenoid valve or electronic switch. It can be understood that the third control switch U3 and the third switch control circuit 25 constitute the heavy-load test control circuit corresponding to the 5V load unit 22.

[0047] A fourth control switch U4 is provided between the 12V load unit 23 and the industrial computer power supply module 10. The fourth control switch U4 can be a relay or electronic switch. The control terminal signal of the fourth control switch U4 is connected to the fourth switch control circuit 26, which is powered by the industrial computer power supply module 10. The fourth switch control circuit 26 can be a logic circuit or a microcontroller-based control circuit, as long as it can control the aforementioned solenoid valve or electronic switch. It can be understood that the fourth control switch U4 and the fourth switch control circuit 26 constitute the heavy-load test control circuit corresponding to the 12V load unit 23.

[0048] It should be understood that the first control switch U1, the second control switch U2, the third control switch U3, and the fourth control switch U4 can be selected from the same or similar solenoid valves or electronic switches, and the first switch control circuit 5, the second switch control circuit 24, the third switch control circuit 25, and the fourth switch control circuit 26 can also be selected from the same or similar logic circuits or microcontroller-based control circuits.

[0049] Each load unit consists of a fixed load 27 and an adjustable load 28 corresponding to the voltage value. Taking the 3.3V load unit 21 as an example, the fixed load 27 uses a precision resistor with a specific resistance value. The resistance value of this resistor has been rigorously calculated and selected based on the typical characteristics of a 3.3V load under actual operating conditions to ensure accurate simulation of real load conditions.

[0050] The adjustable load 28 can be a variable resistor, whose resistance value can be continuously adjusted through a control circuit. The control circuit can be a microcontroller-based digital control circuit or an analog control circuit. In a digital control circuit, the microcontroller outputs different digital signals, which, after passing through a digital-to-analog converter, control the resistance value of the variable resistor. In an analog control circuit, the resistance value is directly adjusted using a potentiometer or other variable elements. In this way, the adjustable load 28 can gradually increase its resistance value until it reaches the full load state of the industrial computer power supply module 10, thereby comprehensively testing the output characteristics of the power supply module under different load conditions.

[0051] The restart fault detection circuit 3 can monitor the operating status of the industrial computer power supply module 10 in real time during the heavy load test and record key data. This circuit includes a heavy load timing unit 31 and a heavy load counting unit 32, both of which have established stable signal connections with the industrial computer power supply module 10.

[0052] The heavy-load timing unit 31 can employ a high-precision timer chip, such as a dedicated timer chip with microsecond-level timing accuracy. When heavy-load loading begins, the power module sends a start signal to the heavy-load timing unit 31, and the timer chip immediately starts timing upon receiving the signal. During timing, the timer chip counts according to its internal clock signal; the frequency of the clock signal determines the timing accuracy. The timer chip converts the count value into a time value, which is then displayed in real time via a digital tube or LCD screen. Operators can visually observe the duration of the heavy-load loading, thereby understanding the operational stability of the power module under prolonged heavy-load conditions.

[0053] The overload counting unit 32 also employs a counter chip, which features high-speed counting and data storage capabilities. Each time an overload event is detected, the power module sends a counting pulse signal to the overload counting unit 32. Upon receiving this signal, the counter chip automatically increments its internal count. The counter chip stores the count value in its internal register and displays it through a display circuit. This allows operators to clearly understand the number of overload events and assess the reliability of the power module under frequent overload conditions.

[0054] Since the load consumes electrical energy and generates heat during operation, effective heat dissipation is necessary to prevent damage from overheating and ensure the accuracy of test results. Therefore, the power conversion module 1 is also connected to a load cooling fan 6, and the load cooling fan 6 and related control circuitry are essential components for ensuring the normal operation of the load module 2.

[0055] The load cooling fan 6 is powered by the power signal output from the power conversion module 1. The control terminal of the load cooling fan 6 is connected to a first delay control circuit 61, which mainly consists of a delay chip and related peripheral circuits.

[0056] The working principle of the first delay control circuit 61 is as follows: After the industrial computer power supply module 10 starts, it sends a start signal to the first delay control circuit 61. Upon receiving this signal, the delay chip does not immediately trigger the load cooling fan 6 to start, but instead starts timing according to a preset delay time. The delay time can be adjusted according to actual needs, generally ranging from several seconds to tens of seconds. When the preset delay time is reached, the delay chip outputs a high-level signal, triggering the load cooling fan 6 to start. This ensures stable system operation during the initial startup of the industrial computer power supply module 10, avoiding the impact of instantaneous current surges caused by fan startup on the industrial computer power supply module 10.

[0057] After the industrial computer power supply module 10 stops working, it sends a stop signal to the first delay control circuit 61. Upon receiving this signal, the delay chip also performs a delay. During the delay period, the load cooling fan 6 continues to operate to ensure sufficient heat dissipation for the load module 2. When the delay time ends, the delay chip outputs a low-level signal to shut down the load cooling fan 6.

[0058] Similarly, in order to ensure the normal operation of the industrial control computer power module 10, the detection device is also equipped with a heat dissipation module 7, which consists of an external cooling fan 71, an internal cooling fan 72, and a second delay control circuit 73.

[0059] An external cooling fan 71 is mounted on the casing of the testing device, dissipating heat from inside the device to the surrounding environment through forced convection. An internal cooling fan 72 is located inside the industrial computer power module 10, cooling the electronic components inside the power module to ensure good heat dissipation during operation.

[0060] Both the external cooling fan 71 and the internal cooling fan 72 are powered by the industrial computer power module 10. Simultaneously, the power module outputs control signals to coordinate the operation of the cooling fans.

[0061] The second delay control circuit 73 is similar to the first delay control circuit 61. Its input terminal is connected to the industrial computer power supply module 10 to receive control signals from the power supply module; its output terminal is connected to the external cooling fan 71 and the internal cooling fan 72 respectively to control the start and stop of the fans.

[0062] When the industrial computer power supply module 10 starts up, it sends a start signal to the second delay control circuit 73. After receiving the signal, the second delay control circuit 73 starts timing according to the preset delay time. When the timing time is up, it outputs a control signal to start the external cooling fan 71 and the internal cooling fan 72 to ensure timely heat dissipation after the industrial computer power supply module 10 starts working.

[0063] After the industrial computer power supply module 10 stops working, it sends a stop signal to the second delay control circuit 73. The second delay control circuit 73 also performs a delay process. During the delay, the external cooling fan 71 and the internal cooling fan 72 continue to operate to ensure that the heat inside the detection device and the industrial computer power supply module 10 is fully dissipated. When the delay ends, the second delay control circuit 73 outputs a signal to shut down the external cooling fan 71 and the internal cooling fan 72.

[0064] In order to monitor the temperature of the load module 2 more accurately and take timely measures to protect the equipment when the temperature is too high, a temperature sensor 81 and a comparator 82 are provided in this embodiment.

[0065] The temperature sensor 81 can be a high-precision thermistor or an integrated temperature sensor, installed at a key location near the load module 2 to ensure accurate sensing of temperature changes in the load module 2. The resistance of a thermistor changes linearly with temperature; by measuring the thermistor's resistance, the temperature of the load module 2 can be calculated. An integrated temperature sensor 81 directly converts the temperature signal into an electrical signal output, offering higher accuracy and stability.

[0066] The output of temperature sensor 81 is connected to the input of comparator 82, which has a preset temperature threshold. This temperature threshold is set based on factors such as the material properties of load module 2, heat dissipation conditions, and safe operating temperature range. When the temperature signal detected by temperature sensor 81 is input to comparator 82, comparator 82 compares it with the preset temperature threshold.

[0067] If the detected temperature is below the threshold, comparator 82 outputs a low-level signal, at which time the industrial computer power module 10 continues to work normally; the above low-level signal is transmitted to the first switch control circuit 5, thereby controlling the first control switch U1 to switch to the closed state, so that the industrial computer power module 10 is locked after startup.

[0068] If the detected temperature exceeds the threshold, comparator 82 outputs a high-level signal and transmits it to the first switch control circuit 5, thereby controlling the first control switch U1 to switch to the off state, causing the 24V power supply signal to be cut off, and the industrial computer power module 10 under test to lose power. In other words, after receiving a high-level signal, the industrial computer power module 10 will take corresponding protective measures, such as reducing the output power of the load or stopping operation, to prevent the load module 2 from being damaged due to overheating.

[0069] The working principle of the detection device for the power supply module of the industrial control computer disclosed in this application is as follows: the power conversion module 1 converts the mains power into a stable 24V after the mains power is stepped down by a transformer, rectified by a rectifier bridge, and filtered by a filter circuit. A DC power signal powers the detection device. The load module 2 is coupled to the industrial computer power module 10, which contains multiple load units, each with a fixed and adjustable load 28. The adjustable load 28 can be increased to full load to simulate different working conditions. The heavy load test control circuit coordinates the power conversion module 1 and the load units according to a preset scheme to realize different heavy load test scenarios. The restart fault detection circuit 3 monitors the power module in real time. The heavy load timing unit 31 records the heavy load duration, and the heavy load counting unit 32 counts the number of heavy loads. In terms of heat dissipation, the load cooling fan 6 and related control circuits ensure the normal operation of the load module 2. The first delay control circuit 61 controls the fan to start and stop according to a preset delay. The temperature sensor 81 monitors the load temperature and compares it with the threshold of the comparator 82. When the threshold is exceeded, the power module takes protective measures. The external and internal cooling fans 72 of the heat dissipation module 7 are controlled by the second delay control circuit 73 according to the power module signal to ensure effective heat dissipation. The voltage and current meters 4, under the action of the first control switch U1 and the first switch control circuit 5, connect or disconnect the circuit according to the power module signal to measure the voltage and current output by the power conversion module 1 in real time.

[0070] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A testing device for an industrial computer power supply module, applied to an industrial computer power supply module (10), characterized in that, include: The power conversion module (1) is used to connect to the mains power and convert the mains power into a 24V power signal output; The load module (2) is coupled to the power supply module (10) of the industrial computer. The load module (2) includes multiple load units for connecting power signals of different voltage values. The restart fault detection circuit (3) includes a heavy load timing unit (31) and a heavy load counting unit (32). Both the heavy load timing unit (31) and the heavy load counting unit (32) are connected to the power supply module (10) of the industrial control computer. The heavy load timing unit (31) receives and displays the duration of the heavy load, and the heavy load counting unit (32) receives and displays the number of heavy loads.

2. The detection device for an industrial control computer power supply module according to claim 1, characterized in that, The multiple load units are defined as a 3.3V load unit (21), a 5V load unit (22), and a 12V load unit (23), respectively. Each load unit includes a fixed load (27) with a corresponding voltage value and an adjustable load (28). The adjustable load (28) is gradually increased until it is fully loaded onto the industrial computer power module (10).

3. The detection device for an industrial control computer power supply module according to claim 2, characterized in that, It also includes a heavy load test control circuit, the input signal of which is connected to the power supply module (10) of the industrial computer, and the output signal of which is connected to the corresponding load unit.

4. The detection device for an industrial control computer power supply module according to claim 3, characterized in that, The power conversion module (1) is also connected to a load cooling fan (6), and the control terminal of the load cooling fan (6) is connected to a first delay control circuit (61), which is connected to the industrial computer power module (10).

5. The detection device for an industrial control computer power supply module according to claim 4, characterized in that, The power conversion module (1) is also connected to a temperature sensor (81) and a comparator (82). The output of the temperature sensor (81) is connected to the input of the comparator (82), and the output of the comparator (82) is connected to the power supply module (10) of the industrial computer.

6. The detection device for an industrial control computer power supply module according to claim 1, characterized in that, The detection device further includes a heat dissipation module (7), which includes at least an external cooling fan (71) and an internal cooling fan (72). The external cooling fan (71) is disposed on the detection device, and the internal cooling fan (72) is disposed in the power supply module (10) of the industrial computer. The power supply module (10) of the industrial computer outputs power signals and control signals to the external cooling fan (71) and the internal cooling fan (72).

7. The detection device for an industrial control computer power supply module according to claim 6, characterized in that, The heat dissipation module (7) further includes a second delay control circuit (73), the input signal of the second delay control circuit (73) is connected to the industrial computer power module (10), and the output signal of the second delay control circuit (73) is connected to the external cooling fan (71) and the internal cooling fan (72).

8. The detection device for an industrial control computer power supply module according to claim 1, characterized in that, The power conversion module (1) is connected to a voltage and current meter (4), which displays the output voltage signal and output current signal of the power conversion module (1).

9. The detection device for an industrial control computer power supply module according to claim 8, characterized in that, The industrial computer power supply module (10) and the voltage and current meter (4) are connected by a first control switch U1. The control terminal of the first control switch U1 is connected to a first switch control circuit (5). The first switch control circuit (5) is connected to the industrial computer power supply module (10).

Images