Analog power load device

Abstract

The utility model discloses an analog electric power load device relates to electric power load simulation technical field, and its technical scheme is: including frame, the inside fixed connection of frame has base plate, and the top of base plate is equipped with the power module for simulating load, control module, measuring module and load simulation module, the frame rear side is equipped with the through slot, and the frame still is equipped with auxiliary assembly, and auxiliary assembly is used to carry out the heat dissipation work to power module, control module, measuring module and load simulation module, to avoid its appearance overheating phenomenon. The utility model has the beneficial effect that: set up auxiliary assembly on the frame, so when carrying out electric power load simulation can to power module, control module, measuring module and load simulation module carry out air cooling heat dissipation, and thus the device has the function of heat dissipation, will not lead to the instrument for simulating load to appear high temperature, and then ensure that the instrument is safely and stably operated in the process of simulating load.

Description

Technical Field

[0001] This utility model relates to the field of power load simulation technology, and specifically to a device for simulating power loads. Background Technology

[0002] The core of power load simulation for circuits is to solve real-world testing challenges in a controllable and safe environment. This avoids circuit damage, data distortion, or safety incidents caused by the diversity, dynamism, and uncontrollability of real loads. It also allows for the flexible reproduction of complex load scenarios during the R&D phase to verify circuit performance in advance and reduce rework costs. Furthermore, it enables accurate simulation of faulty loads during operation and maintenance to quickly locate problems and reduce downtime losses. Ultimately, this achieves circuit design optimization, risk reduction, and efficiency improvement. Existing simulated power load devices have been found to lack heat dissipation capabilities. When various instruments work together to simulate the load, a large amount of heat is generated, causing the instruments to overheat. This cannot ensure the safe and stable operation of the instruments during the simulated load process, so improvements are needed. Therefore, it is necessary to invent a device that simulates electrical loads. Summary of the Invention

[0003] Therefore, this utility model provides a simulated electrical load device to solve the problems in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a simulated power load device, comprising a frame, wherein a base plate is fixedly connected inside the frame, and the top of the base plate is provided with a power supply module, a control module, a measurement module and a load simulation module for simulating the load; The frame has a through slot on the rear side and an auxiliary component on the frame. The auxiliary component is used to dissipate heat from the power supply module, control module, measurement module and load simulation module to prevent them from overheating.

[0005] Preferably, the auxiliary component includes a first housing and two second housings. The first housing is fixedly embedded inside the through groove and located at the top of the substrate. The two second housings are fixedly connected to the inner wall of the rear side of the frame and are located at the bottom of the substrate.

[0006] Preferably, the front side of the first box has multiple air outlet slots, and the front side of both first boxes has multiple air outlet slots.

[0007] Preferably, a plurality of heat dissipation fins are fixedly connected to the bottom of the substrate, and the plurality of heat dissipation fins are located on the front side of the two housings, and two guide strips are fixedly connected to both sides of the plurality of heat dissipation fins.

[0008] Preferably, all of the guide strips are configured to be wavy.

[0009] Preferably, a support block is fixedly connected to the rear side of the frame, a fan is fixedly connected to the top of the support block, a pipe is fixedly connected to the air outlet of the fan, a fan casing is fixedly fitted to one end of the pipe, and pipes are fixedly connected between the fan casing, the housing, and the two housings.

[0010] Preferably, the two pipes located at the bottom of the substrate both penetrate one side of the frame and are fixedly connected to it.

[0011] Preferably, each of the three pipes is equipped with a butterfly valve on its exterior.

[0012] The beneficial effects of this utility model are: This invention mounts the power supply module, control module, measurement module, and load simulation module for simulation on a base plate, and adds auxiliary components to the frame. This allows for air cooling of the power supply module, control module, measurement module, and load simulation module during power load simulation, thus providing the device with heat dissipation capabilities and preventing the instruments used for simulating loads from overheating, thereby ensuring the safe and stable operation of the instruments during the load simulation process. Attached Figure Description

[0013] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0014] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0015] Figure 1 A schematic diagram of the overall structure of this utility model; Figure 2 A perspective view of the frame, substrate, heat dissipation fins, and other components provided for this utility model; Figure 3 Provided by this utility model Figure 2 Bottom view; Figure 4 Provided by this utility model Figure 2 Rear view; Figure 5Provided by this utility model Figure 2 Explosion 3D view.

[0016] In the diagram: 1. Frame; 2. Base plate; 3. Power supply module; 4. Control module; 5. Measurement module; 6. Load simulation module; 7. Box 1; 8. Box 2; 9. Air outlet slot 1; 10. Air outlet slot 2; 11. Heat dissipation fins; 12. Guide strip; 13. Support block; 14. Fan; 15. Pipe 1; 16. Fan casing; 17. Pipe 2; 18. Butterfly valve. Detailed Implementation

[0017] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0018] See attached document Figure 1 -Appendix Figure 5 The simulated power load device provided by this utility model includes a frame 1, a base plate 2 fixedly connected inside the frame 1, and a power supply module 3, a control module 4, a measurement module 5 and a load simulation module 6 for simulating the load on the top of the base plate 2. A through slot is provided on the rear side of the frame 1. An auxiliary component is also provided on the frame 1. The auxiliary component is used to dissipate heat from the power supply module 3, control module 4, measurement module 5 and load simulation module 6 to prevent them from overheating. In this embodiment, the power supply module 3, control module 4, measurement module 5 and load simulation module 6 for simulation are mounted on the base plate 2. In addition, auxiliary components are mounted on the frame 1. In this way, the power supply module 3, control module 4, measurement module 5 and load simulation module 6 can be cooled by air during power load simulation. Thus, the device has the function of heat dissipation, which will not cause the instrument used for simulating load to overheat, thereby ensuring the safe and stable operation of the instrument during the simulation load. Specifically, the power supply module 3 of this device includes a high-precision DC regulated power supply with an output of 0-30V / 0-5A, ripple ≤1mVrms and an RS485 interface, and an AC regulated power supply with an adjustable output of 110V / 220V and an adjustable 50 / 60Hz; the core of the control module 4 is an STM32F103 microcontroller with a 12-bit ADC interface and two RS232 serial ports, along with a seven-inch touchscreen and a 220V to 5V adapter; the measurement module 5 has a dual-channel sensor with a 100MHz bandwidth and a 1GSa / s sampling rate. The system includes an oscilloscope with two 10:1 probes, a 7.5-digit high-precision multimeter with resistances ranging from 0.1Ω to 100MΩ and power accuracy of ±0.1%, an LCR tester with test frequencies from 100Hz to 1MHz and inductances ranging from 0.1μH to 10H with capacitance accuracy of ±0.05%; a load simulation module 6 with an RLC adjustable load box containing 0-10kΩ resistors / 1mH-100mH inductors / 100pF-10μF capacitors; a portable electronic load ranging from 0.1W to 1kW supporting multiple modes; and two 5V coil relays. When connecting instruments, a DC regulated power supply powers the load module and control module 4 via a banana plug wire, while an AC regulated power supply powers the measurement module 5 via a three-hole socket. The microcontroller connects to the power supply module 3 via RS485, the electronic load via RS232, and the relay via its I / O port. The oscilloscope's channel one probe connects to the output of the analog circuit under test, and channel two connects to the input of the load module. The multimeter probes connect to the load interface via alligator clips, and the LCR test clip connects to the RLC module. All three are connected to the microcontroller via USB. The power supply of the circuit under test is connected to an external power source, and its output is connected to the input of the load module. During simulation, target parameters, such as a 100Ω resistive load and a 10-minute test, are first set via the touchscreen. The microcontroller then controls the power supply module 3 to start output and provides feedback indicating readiness. Next, it controls the relay to select the RLC load box and adjust it to 100Ω. The measurement module 5 collects voltage and current waveforms, resistance, power, and inductance / capacitance parameters in real time and transmits them to the microcontroller. The microcontroller compares the data, corrects the load or power supply parameters if there is a deviation, and cuts off the load and power supply and triggers an alarm if there is an overload. This cycle continues until the test ends, achieving accurate load simulation. In this embodiment, the auxiliary components include a first box 7 and two second boxes 8. The first box 7 is fixedly embedded in the through groove and located at the top of the substrate 2. The two second boxes 8 are fixedly connected to the inner wall of the rear side of the frame 1 and are located at the bottom of the substrate 2. The first box 7 has multiple air outlet slots 9 on its front side and the two second boxes 7 have multiple air outlet slots 10 on their front sides. The bottom of the substrate 2 is fixedly connected to multiple heat dissipation fins 11, which are located at the front of the two second boxes 8. Two guide strips 12 are fixedly connected to both sides of the multiple heat dissipation fins 11. The rear side of the frame 1 is fixedly connected to a support block 13. The top of the support block 13 is fixedly connected to a fan 14. The air outlet of the fan 14 is fixedly connected to a pipe 15. One end of the pipe 15 is fixedly fitted with a fan shell 16. The fan shell 16 is fixedly connected to the first box 7 and the two second boxes 8, and the two second pipes 17 located at the bottom of the substrate 2 pass through one side of the frame 1 and are fixedly connected to it. It should be noted that when the power supply module 3, control module 4, measurement module 5, and load simulation module 6 are performing power load simulation, the fan 14 can be controlled to work. Then, air can enter the housing 7 and the two housings 8 through the first pipe 15, the fan casing 16, and the three second pipes 17. Then, under the action of the first air outlet 9, air can be blown onto the power supply module 3, control module 4, measurement module 5, and load simulation module 6, thereby achieving air cooling. Under the action of the second air outlet 10, air can be blown onto the multiple heat dissipation fins 11. Since the substrate 2 and the heat dissipation fins 11 are made of aluminum alloy, they can absorb the heat generated by the power supply module 3, control module 4, measurement module 5, and load simulation module 6. Thus, blowing air onto the multiple heat dissipation fins 11 can also achieve the heat dissipation effect, thereby avoiding high temperature of the instrument. In this embodiment, all guide bars 12 are configured in a wavy shape; It should be noted that the guide strips 12 are provided on the heat dissipation fins 11, which can guide the air when blowing air. In addition, the guide strips 12 are set in a wave shape, so that the air does not pass directly through the heat dissipation fins 11, but passes through in a wave-like state, which can increase the heat dissipation effect. In this embodiment, butterfly valves 18 are provided on the outside of the three pipes 17; It should be noted that butterfly valves 18 are installed on all three pipes 2 17, and all three butterfly valves 18 are regulating butterfly valves 18. In this way, the air flow in the three pipes 2 17 can be controlled by the butterfly valves 18 during use to ensure that the air blown out of the first box 7 and the two second boxes 2 8 are consistent.

[0019] Among them, the models and specifications of the instruments and fan 14 included in the power supply module 3, control module 4, measurement module 5 and load simulation module 6 of this utility model need to be selected and determined according to the actual specifications of the entire device. Moreover, the above-mentioned components are very mature products in the prior art, so the specific models and specifications will not be described in detail. Furthermore, the control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0020] The above are merely preferred embodiments of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A device for simulating electrical loads, characterized in that, Includes a frame (1), inside which a base plate (2) is fixedly connected, and on the top of the base plate (2) are a power supply module (3), a control module (4), a measurement module (5) and a load simulation module (6) for simulating load. The frame (1) has a through slot on the rear side, and the frame (1) is also provided with an auxiliary component. The auxiliary component is used to dissipate heat from the power supply module (3), control module (4), measurement module (5) and load simulation module (6) to avoid overheating.

2. The simulated power load device according to claim 1, characterized in that: The auxiliary components include a first box (7) and two second boxes (8). The first box (7) is fixedly embedded in the through groove and located at the top of the substrate (2). The two second boxes (8) are fixedly connected to the inner wall of the rear side of the frame (1) and are located at the bottom of the substrate (2).

3. The simulated power load device according to claim 2, characterized in that: The front side of the first box (7) is provided with multiple air outlet slots (9), and the front side of both first boxes (7) is provided with multiple air outlet slots (10).

4. The simulated power load device according to claim 3, characterized in that: The bottom of the substrate (2) is fixedly connected with a plurality of heat dissipation fins (11), and the plurality of heat dissipation fins (11) are located on the front side of the two housings (8), and two guide strips (12) are fixedly connected on both sides of the plurality of heat dissipation fins (11).

5. The simulated power load device according to claim 4, characterized in that: All of the guide bars (12) are configured to be wavy.

6. The simulated power load device according to claim 4, characterized in that: A support block (13) is fixedly connected to the rear side of the frame (1), a fan (14) is fixedly connected to the top of the support block (13), a pipe (15) is fixedly connected to the air outlet of the fan (14), a fan shell (16) is fixedly fitted on the outside of one end of the pipe (15), and a pipe (17) is fixedly connected between the fan shell (16), the box (7), and the two boxes (8).

7. The simulated power load device according to claim 6, characterized in that: The two pipes (17) located at the bottom of the substrate (2) both pass through one side of the frame (1) and are fixedly connected to it.

8. The simulated power load device according to claim 6, characterized in that: Each of the three pipes (17) is equipped with a butterfly valve (18) on its exterior.

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