CN211698002U - A fault detection device for frequency converter and circuit board - Google Patents

Abstract

The utility model belongs to the field of fault detection devices, in particular to a fault detection device for frequency converters and circuit boards. Aiming at the problems that the existing fault detection devices are inconvenient to fix the position of the equipment and the detection efficiency is low, the following scheme is now proposed. Including the base, the frequency converter is placed on the top of the base, two fixing plates are fixedly installed on the top of the base, the sides of the two fixing plates close to each other are provided with fixing holes, and the same adjustment is installed slidingly in the two fixing holes. The bottom of the adjustment board is fixedly equipped with a plurality of detection modules, and the plurality of detection modules are all adapted to the frequency converter. The top of the adjustment board is fixedly installed with a main control circuit, and the main control circuit is electrically connected with a plurality of detection modules. . The utility model has the advantages of reasonable structure and convenient operation. The fault detection device is convenient for fixing the position of the equipment, has high detection efficiency, can perform quantitative detection, and quickly find out fault parts for replacement or maintenance.

Description

A fault detection device for frequency converter and circuit board

technical field

The utility model relates to the technical field of fault detection devices, in particular to a fault detection device of a frequency converter and a circuit board.

Background technique

The frequency converter is a power control device that uses frequency conversion technology and microelectronic technology to control the AC motor by changing the working power frequency of the motor. The circuit board makes the circuit miniaturized and intuitive, which is important for the mass production of fixed circuits and the optimization of the layout of electrical appliances. Function, circuit boards and frequency converters need to use detection devices when detecting faults;

However, the existing fault detection device is inconvenient to fix the position of the equipment, and the detection efficiency is low.

Utility model content

The purpose of the utility model is to solve the shortcomings of the prior art that the fault detection device is inconvenient to fix the position of the equipment and the detection efficiency is low, and proposes a fault detection device for a frequency converter and a circuit board.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

A fault detection device for a frequency converter and a circuit board, comprising a base, a frequency converter is placed on the top of the base, two fixing plates are fixedly installed on the top of the base, and fixing holes are provided on the sides of the two fixing plates that are close to each other , the same adjustment plate is slidably installed in the two fixing holes, the bottom of the adjustment plate is fixedly installed with a plurality of detection modules, and the plurality of detection modules are all adapted to the frequency converter, and the top of the adjustment plate is fixedly installed with the main control circuit , the main control circuit is electrically connected with a plurality of detection modules, a display screen is fixedly installed on the top of the adjustment board, the display screen is electrically connected with the main control circuit, and two fixing grooves are opened on the side of the two fixing boards that are close to each other. A moving column is slidably installed in the two fixing grooves of the same fixing plate. One end of the two moving columns is provided with the same clamping plate. The clamping plate is adapted to the inverter, and one side of the clamping plate is fixedly installed. There is a conductive plate, and the conductive plate is in contact with the inverter.

Preferably, one side of the clamping plate is provided with two compression spring grooves, the moving column is slidably installed in the corresponding compression spring groove, one end of the two moving columns is welded with a compression spring, and one end of the compression spring is welded to the corresponding compression spring groove. On the inner wall of one side of the compression spring groove, the moving column drives the clamping plate to move, the clamping plate clamps the inverter, and the moving column continues to move and squeeze the compression spring.

Preferably, the other ends of the two moving columns are provided with threaded grooves, the two threaded grooves are threadedly installed with screw rods, the fixed plate is provided with a fixed cavity, and two pulleys are rotatably installed in the fixed cavity, and one end of the screw rod It is fixedly connected to one side of the corresponding pulley, the two pulleys are engaged with the same belt, the pulley drives the corresponding screw rod to rotate, and the screw rod drives the corresponding moving column to move.

Preferably, a rotating hole is opened on one side of the inner wall of the fixed cavity, a connecting rod is rotatably installed in the rotating hole, one end of the connecting rod is fixedly installed on the pulley, the other end of the connecting rod is fixedly installed with a gear, and the adjusting plate A rack is fixedly installed at the bottom of the utility model, the rack is meshed with the gear, the gear drives the connecting rod to rotate, the connecting rod drives the pulley to rotate, and the pulley drives the belt to move.

Preferably, the top of the adjusting plate is provided with a sliding hole, a fixing rod is slidably installed in the sliding hole, the two ends of the fixing rod are fixedly connected to the inner walls of the two sides of the fixing hole respectively, the fixing rod is sleeved with a spring, and the adjusting plate When moving, the fixed rod slides passively in the sliding hole, which can stably adjust the position of the plate when moving.

Compared with the prior art, the beneficial effects of the present utility model are:

(1) In this scheme, the inverter to be detected is placed on the base, and the circuit board on the inverter is aligned upward with the detection module. The adjustment plate drives the rack to move down and pulls the spring, the gear drives the connecting rod to rotate, and the pulley rotates. Drive the belt to move, the pulley drives the corresponding screw to rotate, the screw drives the corresponding moving column to move, the clamping plate clamps the inverter, and the moving column continues to move and squeeze the compression spring;

(2) This scheme drives the clamping plate to squeeze through the elastic action of the compression spring, the clamping plate clamps and fixes the inverter, the conductive plate is in contact with the inverter, and the conductive plate is energized and tested, and the inverter is connected to the test. When the pins are connected to the plug pins, the current data of the circuit board components in the inverter can be viewed through the display screen, so that the working current of the inverter can be visually seen, so as to determine whether the working current of the inverter is normal;

The utility model has reasonable structure and convenient operation, and the fault detection device is convenient to fix the position of the equipment, has high detection efficiency, can perform quantitative detection, and quickly find out the fault location for replacement or maintenance.

Description of drawings

Fig. 1 is the front view structure schematic diagram of the fault detection device of a kind of frequency converter and circuit board proposed by the utility model;

Figure 2 is a schematic diagram of the structure of part A of a fault detection device for a frequency converter and a circuit board proposed by the utility model.

In the figure: 1. Base; 2. Inverter; 3. Fixing plate; 4. Fixing hole; 5. Adjusting plate; 6. Detection module; 7. Main control circuit; 8. Fixing slot; 9. Moving column; 10. Clamping plate; 11, compression spring; 12, conductive plate; 13, screw rod; 14, fixed cavity; 15, pulley; 16, belt; 17, connecting rod; 18, gear; 19, rack.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

Referring to Figure 1-2, a fault detection device for a frequency converter and a circuit board includes a base 1, a frequency converter 2 is placed on the top of the base 1, two fixing plates 3 are fixedly installed on the top of the base 1, and the two fixing plates 3 The sides close to each other are provided with fixing holes 4, and the same adjustment plate 5 is slidably installed in the two fixing holes 4. The bottom of the adjustment plate 5 is fixedly installed with a plurality of detection modules 6, and the plurality of detection modules 6 are connected with the frequency converter. The top of the adjustment board 5 is fixedly installed with a main control circuit 7, and the main control circuit 7 is electrically connected with a plurality of detection modules 6. The top of the adjustment board 5 is fixedly installed with a display screen, and the display screen is connected to the main control circuit 7. Electrically connected, two fixing grooves 8 are opened on the side of the two fixed plates 3 that are close to each other, and two fixed grooves 8 of the same fixed plate 3 are slidably installed with moving columns 9. One end is provided with the same clamping plate 10 , the clamping plate 10 is adapted to the frequency converter 2 , and a conductive plate 12 is fixedly installed on one side of the clamping plate 10 , and the conductive plate 12 is in contact with the frequency converter 2 .

In this embodiment, two compression spring grooves are formed on one side of the clamping plate 10 , and the moving column 9 is slidably installed in the corresponding compression spring groove. One end of the clamp is welded to the inner wall of the corresponding compression spring groove, the moving column 9 drives the clamping plate 10 to move, the clamping plate 10 clamps the inverter 2 , and the moving column 9 continues to move and squeeze the compression spring 11 .

In this embodiment, the other ends of the two moving columns 9 are both provided with threaded grooves, and the screw rods 13 are threadedly installed in the two threaded grooves. The fixed plate 3 is provided with a fixed cavity 14. There are pulleys 15, one end of the screw 13 is fixedly connected to one side of the corresponding pulley 15, the two pulleys 15 are engaged with the same belt 16, the pulley 15 drives the corresponding screw 13 to rotate, and the screw 13 drives the corresponding moving column 9 moves.

In this embodiment, a rotating hole is opened on one side of the inner wall of the fixed cavity 14, and a connecting rod 17 is rotatably installed in the rotating hole. One end of the connecting rod 17 is fixedly installed on the pulley 15, and the other end of the connecting rod 17 is fixedly installed. There is a gear 18, a rack 19 is fixedly installed at the bottom of the adjusting plate 5, the rack 19 meshes with the gear 18, the gear 18 drives the connecting rod 17 to rotate, the connecting rod 17 drives the pulley 15 to rotate, and the pulley 15 drives the belt 16 to move.

In this embodiment, the top of the adjusting plate 5 is provided with a sliding hole, and a fixing rod is slidably installed in the sliding hole. When the adjusting plate 5 moves, the fixed rod passively slides in the sliding hole, which can stabilize the position of the adjusting plate 5 when moving.

In this embodiment, by placing the inverter 2 to be detected on the base 1, aligning the circuit board on the inverter 2 with the detection module 6 upward, and moving the adjustment plate 5 downward, the adjustment plate 5 drives the rack 19 toward Move down and pull the spring, the rack 19 drives the gear 18 to rotate, the gear 18 drives the connecting rod 17 to rotate, the connecting rod 17 drives the pulley 15 to rotate, the pulley 15 drives the belt 16 to move, the belt 16 drives the other pulley 15 to rotate, and the pulley 15 drives the corresponding The lead screw 13 rotates, the lead screw 13 drives the corresponding moving column 9 to move, the moving column 9 drives the clamping plate 10 to move, the clamping plate 10 clamps the inverter 2, the moving column 9 continues to move and squeezes the compression spring 11 , through the elastic action of the compression spring 11, the clamping plate 10 is driven to squeeze, the clamping plate 10 clamps and fixes the inverter 2, the clamping plate 10 drives the conductive plate 12 to move, and the conductive plate 12 is in contact with the inverter 2. Conduct power-on detection on the conductive plate 12, and at the same time, a plurality of detection modules 6 respectively detect the resistance, capacitance, diode and triode on the inverter 2, and connect the inverter 2 with the test pins and the plug-in pins. View the current data of the circuit board components in the inverter 2 through the display screen, and display the current data output by the main control circuit 7, so that the working current of the inverter 2 can be visually seen, so as to determine the working current of the inverter 2. Whether it is normal or not, the detection method is implemented according to a circuit board component detection circuit in the comparison document 201620425802.1. The fault detection belongs to the prior art, and will not be described in detail in this article. The utility model has reasonable structure and convenient operation, and the fault detection device is convenient for equipment inspection. The position is fixed, the detection efficiency is high, quantitative detection can be carried out, and the faulty part can be quickly found for replacement or maintenance.

Claims (5)

1. The utility model provides a fault detection device of converter, circuit board, includes base (1), its characterized in that, converter (2) have been placed at the top of base (1), and the top fixed mounting of base (1) has two fixed plates (3), and fixed orifices (4) have all been seted up to one side that two fixed plates (3) are close to each other, and slidable mounting has same regulating plate (5) in two fixed orifices (4), the bottom fixed mounting of regulating plate (5) has a plurality of detection module (6), and a plurality of detection module (6) all adapt to converter (2), and the top fixed mounting of regulating plate (5) has main control circuit (7), and main control circuit (7) and a plurality of detection module (6) electric connection, and the top fixed mounting of regulating plate (5) has the display screen, and display screen and main control circuit (7) electric connection, and two fixed slots (8) have all been seted up to one side that two fixed plates (3) are close to each other, equal slidable mounting has removal post (9) in two fixed slots (8) that are located same fixed plate (3), and the one end of two removal posts (9) is equipped with same grip block (10), grip block (10) and converter (2) looks adaptation, and one side fixed mounting of grip block (10) has current conducting plate (12), and current conducting plate (12) contact with converter (2).

2. The device for detecting the faults of the frequency converter and the circuit board as claimed in claim 1, wherein two compression spring grooves are formed in one side of the clamping plate (10), the movable columns (9) are slidably mounted in the corresponding compression spring grooves, compression springs (11) are welded at one ends of the two movable columns (9), and one ends of the compression springs (11) are welded on the inner wall of one side of the corresponding compression spring groove.

3. The device for detecting the faults of the frequency converter and the circuit board as claimed in claim 1, wherein the other ends of the two moving columns (9) are both provided with a thread groove, a screw rod (13) is installed in each thread groove in a threaded manner, the fixing plate (3) is provided with a fixing cavity (14), the fixing cavity (14) is rotatably provided with two belt pulleys (15), one end of each screw rod (13) is fixedly connected to one side of the corresponding belt pulley (15), and the two belt pulleys (15) are engaged with the same belt (16).

4. The device for detecting the faults of the frequency converter and the circuit board as claimed in claim 3, wherein a rotating hole is formed in the inner wall of one side of the fixing cavity (14), a connecting rod (17) is rotatably installed in the rotating hole, one end of the connecting rod (17) is fixedly installed on the belt pulley (15), a gear (18) is fixedly installed at the other end of the connecting rod (17), a rack (19) is fixedly installed at the bottom of the adjusting plate (5), and the rack (19) is meshed with the gear (18).

5. The device for detecting faults of frequency converters and circuit boards as claimed in claim 1, wherein the top of the adjusting plate (5) is provided with a sliding hole, a fixing rod is slidably installed in the sliding hole, two ends of the fixing rod are respectively and fixedly connected to inner walls of two sides of the fixing hole (4), and a spring is sleeved on the fixing rod.

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