An energy-saving controller electromagnetic compatibility testing device

Abstract

The utility model relates to energy -conserving controller test technical field especially for a kind of energy -conserving controller electromagnetic compatibility testing device, including test mechanism and being used for energy -conserving controller electromagnetic compatibility test, test mechanism includes: main component, including the shielding box of control box upper end fixation, shielding box upper end is equipped with lid, shielding box rear end is equipped with interference generating device and coupling and decoupling network, control box inside rear end is equipped with control acquisition module, control box inside middle is equipped with integrated power supply;Auxiliary component, including the bottom plate of fixed in shielding box inside lower end, bottom plate upper end is fixed with guide rail, guide rail is equipped with slider, slider upper end is fixed with mounting plate, bottom plate upper end is equipped with third cylinder;Highly integrated automated electromagnetic compatibility test environment, through accurate simulation multiple standard interference signals, realize the performance evaluation of energy -conserving controller comprehensive efficient, greatly improve test precision and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of energy-saving controller testing technology, specifically to an energy-saving controller electromagnetic compatibility testing device. Background Technology

[0002] With the rapid development of energy-saving technologies, various energy-saving controllers are widely used in industrial automation, intelligent buildings and new energy fields. These controllers usually operate in complex electromagnetic environments, and their electromagnetic compatibility directly affects the reliability and safety of the entire system. According to CN222539403U, a portable electromagnetic compatibility testing device is disclosed. This technology discloses a technical solution including "a testing instrument body, with hinged columns fixedly connected to the middle of both ends of the testing instrument body, and fixed angle components connected to opposite ends of the hinged columns via threaded structures. The hinged columns are rotatably sleeved with hinged rings, and the hinged rings are fixedly connected to one end of an L-shaped rod. The other end of the L-shaped rod is provided with a storage groove, and a positioning component is slidably provided in the storage groove. The positioning component is fixedly connected to both ends of a lifting strap." This technology has the technical effect of "facilitating hand-carrying of the testing instrument body through the retractable lifting strap. At the same time, when in use, the lifting strap extends and is tied to the operator's arm with the testing instrument body, facilitating the testing work without the need for other structures." In the existing electromagnetic compatibility testing process for energy-saving controllers, the test equipment is scattered and independent with single functions. It is necessary to frequently connect different interference generators, coupling networks and measuring instruments, resulting in low integration of the test system, cumbersome operation procedures, and difficulty in signal matching and synchronization between various devices, which seriously affects the test efficiency and consistency of results. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides an electromagnetic compatibility testing device for energy-saving controllers. This highly integrated automated electromagnetic compatibility testing environment accurately simulates various standard interference signals, enabling comprehensive and efficient performance evaluation of energy-saving controllers and greatly improving testing accuracy and efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an electromagnetic compatibility testing device for an energy-saving controller, comprising a testing mechanism and used for electromagnetic compatibility testing of the energy-saving controller, the testing mechanism comprising: The main components include a shielded box fixed at the top of the control box, a box cover installed at the top of the shielded box, an interference generator and a coupling and decoupling network installed at the rear of the shielded box, a control acquisition module installed at the rear of the control box, and an integrated power supply installed in the middle of the control box. The auxiliary components include a base plate fixed inside the lower part of the shielding box, a guide rail fixed to the upper part of the base plate, a slider mounted on the guide rail, a mounting plate fixed to the upper part of the slider, a third cylinder mounted on the upper part of the base plate, and the output end of the third cylinder connected to the mounting plate. A workbench is fixed to the upper part of the mounting plate and is used to fix the energy-saving controller with a fixture. A current and voltage probe is mounted on the lower part of the workbench.

[0005] Preferably, the auxiliary component further includes a fourth cylinder fixed to one side of the upper end of the base plate, a monitoring camera installed at the output end above the fourth cylinder, upright plates fixed on both the left and right sides of the top of the base plate, a horizontal plate fixed between the two upright plates, and a field strength probe installed at the lower end of the horizontal plate.

[0006] Preferably, the auxiliary component further includes wheel seats fixed to the left and right sides of the top front end of the base plate, with rollers rotatably mounted inside the upper part of the wheel seats, and the rollers located at the bottom of the mounting plate.

[0007] Preferably, the base plate further includes a slide fixed to the front end of the control box, a slide plate is slidably mounted on the slide plate, a first cylinder is installed inside the control box, and the front output end of the first cylinder is connected to the slide plate. A door panel is hinged to the front end of the slide plate, and connecting ears are fixed to both the left and right ends of the door panel. A second cylinder is pivotally connected to the outer walls of both the left and right ends of the shielding box, and the front output end of the second cylinder is pivotally connected to the connecting ear.

[0008] Preferably, the main component also includes buckles fixed to both sides of the upper end of the outer wall of the shielding box, buckle seats fixed to both sides of the outer wall of the box cover and cooperating with the buckles, and a handle installed on the top of the box cover.

[0009] Preferably, the interference generating device includes a harmonic simulation source, a burst pulse generator, a surge generator, and an electrostatic discharge gun. Beneficial effects

[0010] This invention provides an electromagnetic compatibility testing device for energy-saving controllers. Compared with existing technologies, it has the following advantages: 1. The main component integrates the control box, shielding box, interference generator, coupling and decoupling network, control acquisition module, and integrated power supply into one unit, avoiding the cumbersome process of connecting multiple devices separately in traditional testing, greatly simplifying the operation steps and saving laboratory space. The coordinated work of the interference generator and the coupling and decoupling network ensures the accurate generation and efficient coupling of standard interference signals, while effectively suppressing energy feedback and ensuring the purity and stability of the test environment. The linear drive mechanism composed of guide rails, sliders, and a third cylinder in the auxiliary components realizes the automated and precise positioning of the energy-saving controller under test. Combined with the current and voltage probes at the bottom of the platform to monitor the electrical parameter response in real time, it not only meets the stringent distance requirements of different test items, but also improves the repeatability and accuracy of test data.

[0011] 2. The monitoring camera driven by the fourth cylinder in the auxiliary components can achieve multi-angle, blind-spot-free observation and capture the changes in the working status of the energy-saving controller in real time, providing an intuitive basis for performance evaluation; the fixed-height field strength probe ensures the standardization and repeatability of radiation field strength measurement; through the coordinated control of the first and second cylinders, the door panel can be opened by translation and rotation linkage, which greatly saves the space in front of the equipment and facilitates operation and maintenance; the auxiliary support structure of the rollers and wheel seats effectively improves the stability of the load-bearing platform when it moves, preventing structural deformation and jamming. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the front-end structure of this utility model; Figure 2 This is a schematic diagram of the rear structure of this utility model; Figure 3 This is a schematic diagram of the internal structure of the present invention; Figure 4 This is a schematic diagram of the internal structure of the control box in this utility model; Figure 5 This is a schematic diagram of the auxiliary components in this utility model.

[0013] In the diagram: 1. Test mechanism; 11. Main component; 111. Control box; 112. Shielding box; 113. Box cover; 114. Interference generator; 115. Coupling and decoupling network; 116. Control and acquisition module; 117. Integrated power supply; 118. Slide; 119. Slide plate; 1110. First cylinder; 1111. Door panel; 1112. Connecting ear; 1113. Second cylinder; 1114. Buckle ; 1115, Buckle; 1116, Handle; 12, Auxiliary Components; 121, Base Plate; 122, Guide Rail; 123, Slider; 124, Mounting Plate; 125, Third Cylinder; 126, Workbench; 127, Current and Voltage Probe; 128, Fourth Cylinder; 129, Monitoring Camera; 1210, Vertical Plate; 1211, Horizontal Plate; 1212, Field Strength Probe; 1213, Wheel Seat; 1214, Roller. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1 - Figure 5This utility model provides a technical solution: an electromagnetic compatibility testing device for an energy-saving controller, including a testing mechanism 1 and used for electromagnetic compatibility testing of the energy-saving controller. The testing mechanism 1 includes: The main component 11 includes a shielded box 112 fixed at the upper end of the control box 111, a box cover 113 installed at the upper end of the shielded box 112, an interference generator 114 and a coupling and decoupling network 115 installed at the rear end of the shielded box 112, a control acquisition module 116 installed at the rear end inside the control box 111, and an integrated power supply 117 installed in the middle inside the control box 111. The auxiliary component 12 includes a base plate 121 fixed inside the lower end of the shielding box 112. A guide rail 122 is fixed on the upper end of the base plate 121. A slider 123 is installed on the guide rail 122. A mounting plate 124 is fixed on the upper end of the slider 123. A third cylinder 125 is installed on the upper end of the base plate 121. The output end of the third cylinder 125 is connected to the mounting plate 124. A workbench 126 is fixed on the upper end of the mounting plate 124 and is used to fix the energy-saving controller with a fixture. A current and voltage probe 127 is installed on the lower end of the workbench 126.

[0016] In this implementation scheme, the interference generator 114 and the coupling and decoupling network 115 work together. The former simulates and generates various standard-specified electromagnetic interference signals, while the latter efficiently couples the interference signals to the cable of the device under test (DUT) while preventing interference energy feedback leakage, thereby ensuring accurate injection of test signals and environmental stability. The control and acquisition module 116 acts as the brain of the system, uniformly controlling all test actions and acquiring and processing test data in real time. The integrated power supply 117 provides a clean and stable power supply for the entire system. A linear drive mechanism is formed by the guide rail 122, the slider 123, and the third cylinder 125, which pushes the mounting plate 124 and the workbench 126 on it to carry the energy-saving controller for precise displacement, thereby changing the relative position of the DUT and the fixed sensor to meet the distance requirements of different test items, greatly improving the repeatability and efficiency of the test. The current and voltage probe 127 can monitor the electrical parameter response of the energy-saving controller under interference in real time at the closest point, providing direct data for evaluating its anti-interference capability or conducted emission level.

[0017] Specifically, the auxiliary component 12 also includes a fourth cylinder 128 fixed on one side of the upper end of the base plate 121. A monitoring camera 129 is installed at the output end of the fourth cylinder 128. Vertical plates 1210 are fixed on both the left and right sides of the top of the base plate 121. A horizontal plate 1211 is fixed between the two vertical plates 1210. A field strength probe 1212 is installed at the lower end of the horizontal plate 1211.

[0018] In this embodiment, the fourth cylinder 128 fixed on one side of the upper end of the base plate 121 constitutes a vertical lifting mechanism. The monitoring camera 129 installed at its upper output end can be driven to different heights, thereby dynamically adjusting the observation angle and field of view. This design ensures that the state changes of the energy-saving controller inside the shielded box 112 can be monitored in real time without blind spots throughout the entire test process, such as indicator light flashing, display screen content, or relay action, providing engineers with intuitive visual evidence to judge whether the equipment has experienced functional performance degradation or failure. The field strength probe 1212 installed at the lower end of the horizontal plate 1211 can always be kept stable at a preset fixed height, which fully meets the geometric requirements of international standards for radiated emission and radiated immunity testing. It can accurately and repeatably measure the intensity of the radiated electromagnetic field generated by the device under test or verify whether the applied interference field strength is accurate and uniform.

[0019] Specifically, the auxiliary component 12 also includes wheel seats 1213 fixed on the left and right sides of the top front end of the base plate 121. A roller 1214 is rotatably mounted inside the upper part of the wheel seat 1213, and the roller 1214 is located at the bottom of the mounting plate 124.

[0020] In this embodiment, when the third cylinder 125 pushes the mounting plate 124 to reciprocate along the guide rail 122, the roller 1214 located at the bottom of the mounting plate 124 rolls accordingly; providing additional auxiliary support for the suspended mounting plate 124 and the load-bearing workbench 126, effectively resisting the bending moment caused by the load gravity, and preventing the mounting plate 124 from deforming or the guide rail 122 from getting stuck with the slider 123.

[0021] Specifically, the base plate 121 also includes a slide 118 fixed inside the front end of the control box 111. A slide plate 119 is slidably mounted on the slide 118. A first cylinder 1110 is installed inside the control box 111, and the front output end of the first cylinder 1110 is connected to the slide plate 119. A door panel 1111 is hinged to the front end of the slide plate 119. Connecting ears 1112 are fixed to both the left and right ends of the door panel 1111. A second cylinder 1113 is pivotally connected to the outer walls of both the left and right ends of the shielding box 112, and the front output end of the second cylinder 1113 is pivotally connected to the connecting ear 1112.

[0022] In this embodiment, the sliding block 118 and the sliding plate 119 mounted on it constitute a primary translational motion. The output end of the first cylinder 1110 drives the door panel 1111 on the sliding plate 119 to move linearly back and forth. The door panel 1111, which is hinged to the front end of the sliding plate 119, serves as a secondary motion. The extension and retraction of the output end of the second cylinder 1113 can drive the connecting ear 1112 to rotate the door panel 1111 around the hinge point, thereby realizing the opening and closing action. The first cylinder 1110 drives the sliding plate 119 to move the door panel 1111 backward as a whole, so that the door panel 1111 is separated from the sealed contact with the box and creates rotation space. Then, the second cylinder 1113 pushes the door panel 1111 open to a fully open state. Compared with simple outward or upward opening doors, this composite motion mode greatly saves the space occupied in front of the equipment and makes it easier for personnel to approach and operate.

[0023] Specifically, the main component 11 also includes buckles 1114 fixed on both sides of the upper end of the outer wall of the shielding box 112, buckles 1115 fixed on both sides of the outer wall of the box cover 113 and cooperating with buckles 1114, and a handle 1116 installed on the top of the box cover 113.

[0024] In this embodiment, the quick opening and closing of the lid 113 is achieved through the buckle 1114 and the buckle seat 1115, ensuring that the gap at the joint between the lid 113 and the box body is completely sealed, so that the metal wire mesh gasket or conductive rubber gasket forms a low impedance electrical connection with the metal surface, effectively eliminating electromagnetic energy leakage that may be caused by the gap antenna effect at the joint of the box body; the handle 1116 provides a safe and labor-saving way to carry the test mechanism 1.

[0025] Specifically, the interference generating device 114 includes a harmonic simulation source, a burst pulse generator, a surge generator, and an electrostatic discharge gun.

[0026] In this embodiment, the harmonic simulation source is used to simulate waveform distortion pollution caused to the power grid when the energy-saving controller is working and to evaluate its resistance to voltage fluctuations; the pulse generator generates high-speed, low-energy repetitive pulse groups to simulate conducted transient interference generated when an inductive load is disconnected in the circuit; the surge generator generates high-energy, slow single pulses to simulate overvoltage stress caused by lightning induction or large equipment switching on the power grid; the electrostatic discharge gun generates pulses with extremely fast rising edges to simulate the effect of contact discharge when a human body is charged and discharges to the equipment; four standardized interference simulators are integrated at the back end of the shielded box 112, enabling this single test device to automatically perform a complete EMC test project from low-frequency conducted emission harmonics to high-frequency radiated immunity electrostatic discharge, and from low-energy repetitive disturbance pulse groups to high-energy single-event surges in an integrated architecture, without the need for multiple large independent devices and repeated wiring changes, which greatly improves test efficiency and reduces configuration complexity.

[0027] The working principle and usage process of this utility model are as follows: First, the control acquisition module 116 is started. The first cylinder 1110 drives the slide plate 119 to move backward on the slide block 118, causing the hinged door panel 1111 to disengage from the sealing surface of the shield box 112. Then, the second cylinder 1113 pushes the connecting ear 1112 to rotate and open the door panel 1111, forming a spacious operating entrance. The energy-saving controller under test is fixed on the workbench 126 with a special clamp, and all necessary cables are connected to the coupling and decoupling network 115. At the start of the test, the integrated power supply 117 supplies power to the entire system, and the control acquisition module 116 coordinates the operation of each component according to the preset program: the third cylinder 125 pushes the mounting plate 124 to move along the guide rail 122, and drives the sample on the workbench 126 to be accurately positioned through the slider 123. At this time, the roller 1214 at the bottom of the mounting plate 124 rolls in the wheel seat 1213 to provide auxiliary support; the fourth cylinder 128 raises the monitoring camera 129 to the optimal observation height to monitor the working status of the sample in real time; the corresponding generators in the interference generating device 114 are started in sequence, and the generated interference signals are injected into the sample cable through the coupling and decoupling network 115; During this period, the current and voltage probes 127 at the lower end of the workbench 126 collect the electrical response of the sample in real time, and the field strength probes 1212 at the lower end of the horizontal plate 1211 monitor the radiation field strength. All data are synchronously transmitted to the control and acquisition module 116 for analysis and recording.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electromagnetic compatibility testing device for an energy-saving controller, characterized in that: The testing facility (1) includes a testing organization (1) for electromagnetic compatibility testing of energy-saving controllers. The testing organization (1) includes: The main component (11) includes a shielded box (112) fixed at the top of the control box (111), a box cover (113) installed at the top of the shielded box (112), an interference generator (114) and a coupling and decoupling network (115) installed at the rear end of the shielded box (112), a control acquisition module (116) installed at the rear end inside the control box (111), and an integrated power supply (117) installed in the middle inside the control box (111). The auxiliary component (12) includes a base plate (121) fixed inside the lower end of the shielding box (112), a guide rail (122) fixed on the upper end of the base plate (121), a slider (123) installed on the guide rail (122), a mounting plate (124) fixed on the upper end of the slider (123), a third cylinder (125) installed on the upper end of the base plate (121), and the output end in front of the third cylinder (125) is connected to the mounting plate (124). A workbench (126) is fixed on the upper end of the mounting plate (124) and used to cooperate with the fixture to fix the energy-saving controller. A current and voltage probe (127) is installed on the lower end of the workbench (126).

2. The electromagnetic compatibility testing device for an energy-saving controller according to claim 1, characterized in that: The auxiliary component (12) also includes a fourth cylinder (128) fixed on one side of the upper end of the base plate (121). A monitoring camera (129) is installed on the output end of the fourth cylinder (128). Vertical plates (1210) are fixed on both the left and right sides of the top of the base plate (121). A horizontal plate (1211) is fixed between the two vertical plates (1210). A field strength probe (1212) is installed at the lower end of the horizontal plate (1211).

3. The electromagnetic compatibility testing device for an energy-saving controller according to claim 1, characterized in that: The auxiliary component (12) also includes wheel seats (1213) fixed on the left and right sides of the top front end of the base plate (121). A roller (1214) is rotatably installed inside the upper end of the wheel seat (1213), and the roller (1214) is located at the bottom of the mounting plate (124).

4. The electromagnetic compatibility testing device for an energy-saving controller according to claim 1, characterized in that: The base plate (121) also includes a slide (118) fixed inside the front end of the control box (111). A slide plate (119) is slidably installed on the slide plate (118). A first cylinder (1110) is installed inside the control box (111), and the front output end of the first cylinder (1110) is connected to the slide plate (119). A door panel (1111) is hinged to the front end of the slide plate (119). Connecting ears (1112) are fixed on both the left and right ends of the door panel (1111). A second cylinder (1113) is pivotally connected to the outer walls of both the left and right ends of the shielding box (112), and the front output end of the second cylinder (1113) is pivotally connected to the connecting ear (1112).

5. The electromagnetic compatibility testing device for an energy-saving controller according to claim 1, characterized in that: The main component (11) also includes buckles (1114) fixed on both sides of the upper end of the outer wall of the shielding box (112), buckle seats (1115) fixed on both sides of the outer wall of the box cover (113) and cooperating with buckles (1114), and a handle (1116) installed on the top of the box cover (113).

6. The electromagnetic compatibility testing device for an energy-saving controller according to claim 1, characterized in that: The interference generating device (114) includes a harmonic simulation source, a burst pulse generator, a surge generator, and an electrostatic discharge gun.

Images