A converter load testing device

Abstract

The utility model relates to a kind of converter load test device, belong to load experimental device technical field, including bottom plate and fixed unit;Voltage conversion module one is set on the bottom plate;Voltage conversion module two is set on the bottom plate and with the voltage conversion module one electric connection;Switch mos is set on the bottom plate and with the voltage conversion module two electric connection;Voltage detection module is set on the bottom plate and with the switch mos electric connection;Dsp board is set on the bottom plate and with the switch mos communication connection;Adjusting switch is set on the bottom plate and with the dsp board control connection;Three-phase inductance capacitor filter module is set on the bottom plate and with the switch mos electric connection;Air switch is set on the bottom plate and with the three-phase inductance capacitor filter module electric connection;Three-phase adjustable resistance is set on the bottom plate and with the air switch electric connection.The utility model can quickly dismount and assemble electronic component.

Description

Technical Field

[0001] This utility model relates to the technical field of load testing devices, and in particular to a converter load testing device. Background Technology

[0002] In modern power electronics technology, converters, as core components for energy conversion, are widely used in new energy power generation, new energy vehicles, industrial drives, and smart grids. Their performance indicators, such as output voltage stability, frequency accuracy, harmonic suppression capability, and load adaptability, directly determine the operating efficiency and reliability of the power system. Therefore, during the research and development, production, and factory testing stages of converters, it is necessary to accurately verify their key performance characteristics using load testing equipment to ensure that the products meet the technical requirements of actual application scenarios. Load testing equipment has become one of the core testing devices in the industrialization process of power electronic equipment.

[0003] When conducting load tests, electronic components need to be mounted on the base plate. However, in existing technologies, bolts are usually used for fixing, which makes the installation time-consuming and prevents quick assembly and disassembly. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a converter load testing device that can quickly disassemble and assemble electronic components.

[0005] The technical solution of this utility model is: a converter load testing device, comprising, Base plate; Voltage conversion module one is mounted on the base plate; Voltage conversion module 2 is mounted on the base plate and electrically connected to voltage conversion module 1; A switch MOSFET is mounted on the base plate and electrically connected to the voltage conversion module. A voltage detection module is mounted on the base plate and electrically connected to the switch MOSFET; The DSP board is mounted on the base plate and is communicatively connected to the MOSFET switch. An adjustment switch is mounted on the base plate and controlled by the DSP board. A three-phase inductor-capacitor filter module is mounted on the base plate and electrically connected to the switch MOSFET; An air switch is mounted on the base plate and electrically connected to the three-phase inductor-capacitor filter module; A three-phase adjustable resistor is mounted on the base plate and electrically connected to the air switch; A fixing unit is used to fix the voltage conversion module one, the voltage conversion module two, the switch MOSFET, the voltage detection module, the DSP board, the regulating switch, the three-phase inductor-capacitor filter module, and the air switch to the base plate.

[0006] Preferably, the base plate is provided with positioning holes arranged in an array, and the fixing unit is embedded in the positioning holes.

[0007] Preferably, the fixing unit includes a locking component and an elastic component.

[0008] Preferably, the locking assembly includes a locking post with an opening at its lower end, a slide bar slidably disposed on the locking post, and a tapered rod disposed at the lower end of the slide bar and abutting against the opening.

[0009] Preferably, the elastic component includes a connecting block disposed on the slide rod, a push block slidably disposed on the outer periphery of the locking post, and an elastic element disposed on the outer periphery of the slide rod and connected at both ends to the connecting block and the push block respectively.

[0010] Preferably, the locking pin and the slide bar have different lengths.

[0011] Preferably, the fixing unit further includes a connecting buckle for fixing the air switch; the connecting buckle is provided with a pressure block.

[0012] Compared with the prior art, the present invention has the following beneficial technical effects: In this invention, when fixing the voltage conversion module 1, the voltage conversion module 1 is placed on the base plate and aligned with the positioning hole on the base plate. A locking component of appropriate length is selected. During use, the connecting block is pressed down, causing the connecting block to push the sliding rod to move. The sliding rod drives the tapered rod to move downward, thereby separating the tapered rod from the opening. This causes the tapered rod to elastically reset, reducing its diameter and making it easier to pass through the positioning hole. After the opening passes through the voltage conversion module 1 and the positioning hole, the push block presses on the voltage conversion module 1. At this point, the connecting block is released, causing the elastic element to push the push block and the connecting block to... When the connecting block separates, it moves upward, which in turn moves the sliding rod upward. The sliding rod then moves the tapered rod upward, which presses against the opening, causing it to expand outward and increase its bottom diameter. This allows it to be secured to the base plate. The elastic element then pushes the push block onto the voltage conversion module one, resulting in better fixation. This method can be used to fix the base plate, voltage conversion module one, voltage conversion module two, MOSFET switch, voltage detection module, DSP board, regulating switch, three-phase inductor-capacitor filter module, and three-phase adjustable resistor. The length of the opening and the sliding rod need to be selected according to their thickness. If the circuit breaker needs to be secured, the connector clip needs to be inserted into the circuit breaker, and then connected to the base plate through the connector clip and locking assembly. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 2 This is a partial structural schematic diagram of an embodiment of the present utility model; Figure 3 This is a partial exploded view of an embodiment of the present invention; Figure 4 This is a schematic diagram of the connecting buckle in this utility model; Figure 5 This is a circuit diagram of an embodiment of the present invention.

[0015] Reference numerals: 1. Base plate; 2. Voltage conversion module one; 3. Voltage conversion module two; 4. Switch MOSFET; 5. Voltage detection module; 6. DSP board; 7. Adjusting switch; 8. Three-phase inductor-capacitor filter module; 9. Air switch; 10. Three-phase adjustable resistor; 11. Connecting buckle; 1101. Pressure block; 12. Locking assembly; 1201. Locking post; 1202. Opening; 1203. Slide rod; 1204. Tapered rod; 13. Elastic assembly; 1301. Push block; 1302. Elastic element; 1303. Connecting block. Detailed Implementation

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive, either alone or selectively, with other embodiments.

[0019] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0020] Example 1 like Figure 1-5 As shown, the present invention proposes a converter load test device, which includes a base plate 1, a voltage conversion module 1 2, a voltage conversion module 2 3, a switch MOSFET 4, a voltage detection module 5, a DSP board 6, an adjustment switch 7, a three-phase inductor-capacitor filter module 8, an air switch 9, a three-phase adjustable resistor 10, and a fixing unit. Voltage conversion module 1 (2) is mounted on the base plate 1; voltage conversion module 2 (3) is mounted on the base plate 1 and electrically connected to voltage conversion module 1 (2); switch MOSFET 4 is mounted on the base plate 1 and electrically connected to voltage conversion module 2 (3); voltage detection module 5 is mounted on the base plate 1 and electrically connected to switch MOSFET 4; DSP board 6 is mounted on the base plate 1 and communicatively connected to switch MOSFET 4; regulating switch 7 is mounted on the base plate 1 and controlled by DSP board 6; three-phase inductor-capacitor filter module 8 is... The circuit breaker 9 is mounted on the base plate 1 and electrically connected to the switch MOSFET 4; the air switch 9 is mounted on the base plate 1 and electrically connected to the three-phase inductor-capacitor filter module 8; the three-phase adjustable resistor 10 is mounted on the base plate 1 and electrically connected to the air switch 9; a fixing unit is used to fix the voltage conversion module 1 2, the voltage conversion module 2 3, the switch MOSFET 4, the voltage detection module 5, the DSP board 6, the adjusting switch 7, the three-phase inductor-capacitor filter module 8 and the air switch 9 to the base plate 1.

[0021] The base plate 1 is provided with positioning holes arranged in an array, and the fixing unit is embedded in the positioning holes. The fixing unit includes a locking assembly 12 and an elastic assembly 13. The locking assembly 12 includes a locking post 1201 with an opening 1202 at its lower end, a slide rod 1203 slidably disposed on the locking post 1201, and a tapered rod 1204 disposed at the lower end of the slide rod 1203 and abutting against the opening 1202.

[0022] The elastic component 13 includes a connecting block 1303 disposed on the slide rod 1203, a push block 1301 slidably disposed on the outer periphery of the locking post 1201, and an elastic element 1302 disposed on the outer periphery of the slide rod 1203 and connected at both ends to the connecting block 1303 and the push block 1301 respectively.

[0023] The locking pin 1201 and the slide bar 1203 have different lengths. The fixing unit also includes a connecting buckle 11 for fixing the air switch 9; the connecting buckle 11 is provided with a pressure block 1101.

[0024] In this embodiment, when fixing the voltage conversion module 2, the voltage conversion module 2 is placed on the base plate 1 and aligned with the positioning hole on the base plate 1. A locking component 12 of appropriate length is selected. In use, the connecting block 1303 is pressed down, causing the connecting block 1303 to push the slide rod 1203 to move. The slide rod 1203 drives the tapered rod 1204 to move downward, thereby separating the tapered rod 1204 from the opening 1202. This causes the opening 1202 to elastically reset, thereby reducing its diameter and making it easier to pass through the positioning hole. After the opening 1202 passes through the voltage conversion module 2 and the positioning hole, the push block 1301 presses on the voltage conversion module 2. At this time, the connecting block 1303 is released, causing the elastic element 1302 to push the push block 1301 and the connecting block 1202 to lock the voltage conversion module 2. When the connecting block 1303 separates, the connecting block 1303 moves upward, thereby driving the slide rod 1203 to move upward. The slide rod 1203 drives the tapered rod 1204 to move upward. The tapered rod 1204 squeezes the opening 1202, causing the opening 1202 to expand outward and increase its bottom diameter, so that it can be locked onto the base plate 1. The elastic element 1302 pushes the push block 1301 to press onto the voltage conversion module 1-2, making its fixing effect better. This method can be used to fix the base plate 1, voltage conversion module 1-2, voltage conversion module 2-3, switch MOSFET 4, voltage detection module 5, DSP board 6, regulating switch 7, three-phase inductor-capacitor filter module 8, and three-phase adjustable resistor 10. The opening 1202 and slide rod 1203 of different lengths need to be selected according to their thickness. If it is necessary to fix the air switch 9, the connecting buckle 11 needs to be snapped into the air switch 9, and then connected to the base plate 1 through the connecting buckle 11 and the locking assembly 12.

[0025] Voltage conversion module 1 (2) converts the input voltage to 5V to power the DSP board 6. Voltage conversion module 2 (3) converts the input voltage to 12V to power the MOSFET 4. Voltage detection module 5 detects the voltage. Adjustment switch 7 adjusts the output frequency. Air switch 9 connects to the load; when closed, it carries the load, and when open, it carries no load. Three-phase adjustable resistor 10 adjusts the resistance.

[0026] After the voltage detection module detects the voltage of one phase, the small voltage signal is isolated and amplified, and then conditioned by the signal conditioning circuit to be within the input range of DSP board 6. The data is then sent to DSP board 6, which has its own correct phase voltage data. After comparison, the value is checked and feedback is given for adjustment.

[0027] During the converter load test, the tested converter 1DC-AC converts DC power to AC power, and its output is connected to converter 2AC-DC through the connection unit. Converter 2 converts AC power to DC power and feeds it back to the input terminal of converter 1DC-AC. Together with the DC power supply, they power converter 1DC-AC, thereby achieving energy saving.

[0028] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A converter load testing device, characterized in that: include, Base plate (1); Voltage conversion module 1 (2) is mounted on the base plate (1); Voltage conversion module 2 (3) is mounted on the base plate (1) and electrically connected to voltage conversion module 1 (2); The switch MOS (4) is mounted on the base plate (1) and electrically connected to the voltage conversion module II (3); A voltage detection module (5) is mounted on the base plate (1) and electrically connected to the switch MOSFET (4); The DSP board (6) is mounted on the base plate (1) and is communicatively connected to the switch MOSFET (4); Adjustment switch (7) is set on the base plate (1) and controlled to be connected to the DSP board (6); The three-phase inductor-capacitor filter module (8) is mounted on the base plate (1) and electrically connected to the switch MOSFET (4); An air switch (9) is mounted on the base plate (1) and electrically connected to the three-phase inductor-capacitor filter module (8); A three-phase adjustable resistor (10) is mounted on the base plate (1) and electrically connected to the air switch (9); A fixing unit is used to fix the voltage conversion module one (2), the voltage conversion module two (3), the switch MOS (4), the voltage detection module (5), the DSP board (6), the regulating switch (7), the three-phase inductor-capacitor filter module (8) and the air switch (9) onto the base plate (1).

2. The converter load testing device according to claim 1, characterized in that, The base plate (1) is provided with positioning holes arranged in an array, and the fixing unit is embedded in the positioning holes.

3. The converter load testing device according to claim 2, characterized in that, The fixing unit includes a locking component (12) and an elastic component (13).

4. The converter load testing device according to claim 3, characterized in that, The locking assembly (12) includes a locking post (1201) with an opening (1202) at its lower end, a slide bar (1203) slidably disposed on the locking post (1201), and a tapered rod (1204) disposed at the lower end of the slide bar (1203) and abutting against the opening (1202).

5. A converter load testing device according to claim 4, characterized in that, The elastic component (13) includes a connecting block (1303) disposed on the slide rod (1203), a push block (1301) slidably disposed on the outer periphery of the locking post (1201), and an elastic element (1302) disposed on the outer periphery of the slide rod (1203) and connected at both ends to the connecting block (1303) and the push block (1301) respectively.

6. The converter load testing device according to claim 5, characterized in that, The locking pin (1201) and the slide bar (1203) have different lengths.

7. A converter load testing device according to claim 6, characterized in that, The fixing unit also includes a connecting buckle (11) for fixing the air switch (9); the connecting buckle (11) is provided with a pressure block (1101).

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