Novel frequency converter fault detection device

Abstract

The utility model discloses a novel frequency converter fault detection device, and relates to the technical field of frequency converters. The machining device comprises a machining table and further comprises sliding rods installed on the upper end face of the machining table in a rectangular distribution mode, a top plate is fixed to the upper end faces of the sliding rods, transverse moving assemblies are symmetrically installed on the upper end face of a lifting plate, a moving plate is installed on the upper end faces of the transverse moving assemblies, and an adjusting assembly is fixed to the lower end face of the moving plate. According to the utility model, the motor can drive the screw rod to rotate and further drive the moving block to move up and down along the linear direction of the limiting groove body, so that adjustment can be carried out according to the height of the detection port, the application range of the device is wider, the push cylinder simultaneously drives the moving plates on the two sides to get close to each other, and the elastic cushion block can firstly contact with the side wall of the frequency converter. When the elastic cushion block deforms, the conductive block is inserted into the detection ports in the left and right sides to perform power-on detection on the frequency converter, and the arranged elastic cushion block can slow down the insertion speed of the conductive block and avoid damage to the detection ports.

Description

Technical Field

[0001] The utility model belongs to the technical field of frequency converters, and particularly relates to a novel frequency converter fault detection device. Background Art

[0002] The inverter is mainly composed of rectifier filter, inverter, brake unit, drive unit, detection unit, microprocessor unit, etc. The inverter adjusts the voltage and frequency of the output power supply by the internal IGBT opening and closing, and provides the required power supply voltage according to the actual needs of the motor, thereby achieving the purpose of energy saving and speed regulation. In addition, the inverter has many protection functions, such as over-current, over-voltage, overload protection, etc. With the continuous improvement of industrial automation, inverters have also been widely used.

[0003] A fault detection device for a frequency converter and a circuit board is retrieved with the patent number CN21698002U, which specifically discloses: a rotating hole is opened on the inner wall of one side 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, a rack is fixedly installed on the bottom of the adjusting plate, the rack is meshed with the gear, the gear drives the connecting rod to rotate, the connecting rod drives the pulley to rotate, the pulley drives the belt to move, the belt drives another pulley to rotate, the pulley drives the corresponding screw rod to rotate, the screw rod drives the corresponding moving column to move, the moving column drives the clamping plate to move, the clamping plate clamps the frequency converter, the moving column continues to move and squeezes the compression spring, the elastic action of the compression spring drives the clamping plate to squeeze, the clamping plate clamps and fixes the frequency converter, the clamping plate drives the conductive plate to move, the conductive plate contacts the frequency converter to perform conductive plate detection. However, although the above-mentioned equipment can detect the frequency converter, the heights of the detection ports on both sides of the frequency converters of different models are different, and it is difficult to adapt to the detection of frequency converters of different models, resulting in a significant reduction in the scope of application of the equipment. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the utility model provides a novel inverter fault detection device, which can effectively solve the problems of the prior art.

[0005] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0006] The utility model is a novel inverter fault detection device, comprising a processing table and a placement slot opened at the center of the upper end surface of the processing table, and also comprising:

[0007] The slide bars are rectangularly arranged on the upper end surface of the processing table, and a top plate is fixed on the upper end surface of the slide bars;

[0008] The lifting assembly is fixed at the center of the upper end surface of the top plate, and a lifting plate is fixed at the end of the lifting assembly, and the lifting assembly can drive the lifting plate to move up and down;

[0009] The detection module is linearly distributed on the lower end surface of the installation lifting plate, and the detection module can be plugged into the detection port of the inverter;

[0010] The transverse moving assembly is symmetrically mounted on the upper end surface of the lifting plate, and a moving plate is mounted on the upper end surface of the transverse moving assembly. The transverse moving assembly is used to drive the moving plates on both sides to move in opposite directions;

[0011] The adjustment component is fixed on the lower end surface of the movable plate and can be adjusted according to the different positions of the detection ports.

[0012] Furthermore, the lifting assembly includes a linear bearing and an electric push rod, the electric push rod is fixed at the central position of the upper end surface of the top plate, the output end of the electric push rod is fixedly connected to the upper end surface of the lifting plate, and the linear bearing is rectangularly installed on the upper end surface of the lifting plate and is sleeved on the outside of the sliding rod.

[0013] Furthermore, the transverse movement assembly includes a movable trough body, a slide rail, a slider, a movable plate and a pushing cylinder. The movable trough body is symmetrically opened on the upper end surface of the lifting plate, the slide rail is symmetrically installed on the upper end surface of the lifting plate, and is respectively located on the left and right sides of the movable trough body, the slider is slidably connected to the upper end surface of the slide rail, and the movable plate is installed on the upper end surface of the slider.

[0014] Furthermore, the adjustment assembly includes a vertical plate, a moving block, a screw rod, a motor and a limit groove body. The vertical plate is fixed on the lower end surface of the moving plate, and the vertical plate passes through the interior of the moving groove body. The screw rod is rotatably connected to the outer side of the vertical plate. The motor is installed on the upper end surface of the moving plate, and the output end of the motor is fixedly connected to the screw rod. The limit groove body is opened on the side of the vertical plate, the moving block is clamped in the interior of the limit groove body, and the moving block and the screw rod are threadedly connected.

[0015] Furthermore, a pushing cylinder is symmetrically fixed to the upper end surface of the lifting plate, and the output end of the pushing cylinder is fixedly connected to one side of the moving plate.

[0016] Furthermore, a conductive block is installed at the center of the inner side of the moving block, and elastic pads are symmetrically installed on the inner side of the moving block and are respectively located on the left and right sides of the conductive block.

[0017] The utility model has the following beneficial effects:

[0018] The utility model can drive the screw rod to rotate through the motor provided, and then drive the moving block to move up and down along the linear direction of the limiting slot body, so that it can be adjusted according to the height of the detection port, and the application range of the equipment is wider. Then, the pushing cylinders on both sides simultaneously drive the moving plates on both sides to approach each other, and the elastic pads can first contact the side walls of the inverter. Then, when the elastic pads are deformed, the conductive blocks are plugged into the detection ports on the left and right sides, and the inverter is powered on for detection. The provided elastic pads can slow down the plugging speed of the conductive blocks to avoid damage to the detection ports. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a top view schematic diagram of a novel inverter fault detection device of the utility model;

[0021] Figure 2 This is a schematic diagram of the adjustment component of the utility model;

[0022] Figure 3 It is a schematic diagram of the lifting plate of the utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Processing table; 2. Placement trough; 3. Slide rod; 4. Lifting plate; 5. Linear bearing; 6. Electric push rod; 7. Top plate; 8. Moving trough; 9. Slide rail; 10. Slider; 11. Moving plate; 12. Push cylinder; 13. Vertical plate; 14. Moving block; 15. Screw rod; 16. Motor; 17. Limiting trough; 18. Detection module; 19. Elastic pad; 20. Conductive block. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0026] See also Figure 1-3 As shown, the utility model is a novel inverter fault detection device, comprising a processing table 1 and a placement slot 2 opened at the center of the upper end surface of the processing table 1, and also comprising:

[0027] The slide rods 3 are rectangularly arranged on the upper end surface of the processing table 1, and a top plate 7 is fixed to the upper end surface of the slide rods 3, and the slide rods 3 can support the top plate 7;

[0028] The lifting assembly is fixed at the central position of the upper end surface of the top plate 7. The lifting plate 4 is fixed at the end of the lifting assembly. The lifting assembly can drive the lifting plate 4 to move up and down. The detection module 18 is linearly distributed on the lower end surface of the lifting plate 4, and the detection module 18 can be plugged into the detection port of the frequency converter. The lifting assembly includes a linear bearing 5 and an electric push rod 6. The electric push rod 6 is fixed at the central position of the upper end surface of the top plate 7. The output end of the electric push rod 6 is fixedly connected to the upper end surface of the lifting plate 4. The linear bearing 5 is rectangularly distributed and installed on the upper end surface of the lifting plate 4, and is sleeved on the outside of the slide bar 3. The lower end surface of the lifting plate 4 is linearly distributed and installed with the detection module 18, and the detection module 18 can be plugged into the detection port of the frequency converter. The electric push rod 6 can be used to drive the lifting plate 4 to move up and down along the linear direction of the slide bar 3. The linear bearing 5 can make the lifting plate 4 more stable during the lifting process, and can keep the lifting plate 4 in a horizontal state, thereby driving the detection module 18 to be stably plugged into the upper detection port to perform fault detection on the frequency converter.

[0029] The lateral movement component is symmetrically installed on the upper end surface of the lifting plate 4, and a moving plate 11 is installed on the upper end surface of the lateral movement component. The lateral movement component is used to drive the moving plates 11 on both sides to move in opposite directions. The lateral movement component includes a moving trough 8, a slide rail 9, a slider 10 and a moving plate 11. The moving trough 8 is symmetrically opened on the upper end surface of the lifting plate 4, and the slide rail 9 is symmetrically distributed and installed on the upper end surface of the lifting plate 4, and is respectively located on the left and right sides of the moving trough 8. The slider 10 is slidably connected to the upper end surface of the slide rail 9, and the moving plate 11 is installed on the upper end surface of the slider 10. The slide rail 9 can limit the direction of the slider 10, and the set slider 10 can support the moving plate 11. The upper end surface of the lifting plate 4 is symmetrically fixed with a pushing cylinder 12, and the output end of the pushing cylinder 12 is fixedly connected to one side of the moving plate 11. The moving plates 11 on both sides can be driven to move in opposite directions along the linear direction of the slide rail 9 along with the slider 10 through the set pushing cylinder 12, so as to subsequently detect the frequency converter;

[0030] The adjusting component is fixed on the lower end surface of the movable plate 11, and can be adjusted according to the different positions of the detection port. The adjusting component includes a vertical plate 13, a movable block 14, a screw rod 15, a motor 16 and a limiting groove 17. The vertical plate 13 is fixed on the lower end surface of the movable plate 11, and the vertical plate 13 runs through the interior of the movable groove 8. The screw rod 15 is rotatably connected to the outer side of the vertical plate 13. The motor 16 is installed on the upper end surface of the movable plate 11, and the output end of the motor 16 is fixedly connected to the screw rod 15. The limiting groove 17 is provided on the side of the vertical plate 13. The movable block 14 is clamped in the interior of the limiting groove 17, and the movable block 14 is threadedly connected to the screw rod 15. The screw rod 15 can be driven to rotate by the motor 16. And drive the moving block 14 to move up and down along the linear direction of the limiting groove 17, so that it can be adjusted according to the height of the detection port; the scope of application is wider, a conductive block 20 is installed at the inner central position of the moving block 14, and elastic pads 19 are symmetrically installed on the inner side of the moving block 14, and are respectively located on the left and right sides of the conductive block 20, and the cylinders 12 on both sides push the moving plates 11 on both sides to approach each other, and then, the elastic pads 19 can first contact the side wall of the inverter, and then, when the elastic pads 19 are deformed, the conductive blocks 20 are plugged into the detection ports on the left and right sides, and the inverter is powered on for detection. The set elastic pads 19 can slow down the plugging speed of the conductive block 20 to avoid damage to the detection port.

[0031] Working principle: First, place the processing table 1 horizontally, and then place the inverter inside the placement tank 2, and the placement tank 2 can be limited with the inverter;

[0032] During the detection, the electric push rod 6 can drive the lifting plate 4 to move up and down along the linear direction of the slide bar 3, and the linear bearing 5 can make the lifting plate 4 more stable during the lifting process, and can keep the lifting plate 4 in a horizontal state, thereby driving the detection module 18 to be smoothly plugged into the upper detection port to perform fault detection on the frequency converter. At the same time, multiple detection modules 18 respectively detect the resistance, capacitance, diode and transistor on the frequency converter, and connect the frequency converter to the test pin and the plug-in pin, so that the current data of the circuit board assembly in the frequency converter can be viewed through the display screen, and the current data output by the main control circuit can be displayed, so that the working current of the frequency converter can be intuitively seen, so as to determine whether the working current of the frequency converter 2 is normal;

[0033] Then, the motor 16 is arranged to drive the screw rod 15 to rotate, thereby driving the moving block 14 to move up and down along the linear direction of the limiting groove 17, so that it can be adjusted according to the height of the detection port; the equipment has a wider range of applications, and then, the pushing cylinders 12 on both sides simultaneously drive the moving plates 11 on both sides to approach each other, and the elastic pads 19 can first contact the side walls of the inverter, and then, while the elastic pads 19 are deformed, the conductive blocks 20 are plugged into the detection ports on the left and right sides to perform power-on detection on the inverter, and the elastic pads 19 arranged can slow down the plugging speed of the conductive blocks 20 to avoid damage to the detection ports.

[0034] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A novel inverter fault detection device, comprising a processing table (1) and a placement slot (2) provided at the center of the upper end surface of the processing table (1), characterized in that: Also includes: The slide bars (3) are installed in a rectangular distribution on the upper end surface of the processing table (1), and a top plate (7) is fixed on the upper end surface of the slide bars (3); A lifting assembly is fixed at the center of the upper end surface of the top plate (7), a lifting plate (4) is fixed at the end of the lifting assembly, and the lifting assembly can drive the lifting plate (4) to move up and down; The detection module (18) is linearly distributed on the lower end surface of the installation lifting plate (4), and the detection module (18) can be plugged into the detection port of the frequency converter; A transverse movement assembly is symmetrically mounted on the upper end surface of the lifting plate (4), a moving plate (11) is mounted on the upper end surface of the transverse movement assembly, and the transverse movement assembly is used to drive the moving plates (11) on both sides to move in opposite directions; The adjustment component is fixed on the lower end surface of the movable plate (11) and can be adjusted according to the different positions of the detection ports.

2. A novel inverter fault detection device according to claim 1, characterized in that: The lifting assembly comprises a linear bearing (5) and an electric push rod (6), wherein the electric push rod (6) is fixed at the central position of the upper end surface of the top plate (7), the output end of the electric push rod (6) is fixedly connected to the upper end surface of the lifting plate (4), and the linear bearing (5) is installed in a rectangular distribution on the upper end surface of the lifting plate (4) and is sleeved on the outside of the sliding rod (3).

3. A novel inverter fault detection device according to claim 1, characterized in that: The transverse movement assembly comprises a movable trough body (8), a slide rail (9), a slider (10) and a movable plate (11); the movable trough body (8) is symmetrically opened on the upper end surface of the lifting plate (4); the slide rail (9) is symmetrically distributed and installed on the upper end surface of the lifting plate (4), and is respectively located on the left and right sides of the movable trough body (8); the slider (10) is slidably connected to the upper end surface of the slide rail (9); and the movable plate (11) is installed on the upper end surface of the slider (10).

4. A novel inverter fault detection device according to claim 3, characterized in that: The adjustment assembly comprises a vertical plate (13), a moving block (14), a screw rod (15), a motor (16) and a limiting groove body (17); the vertical plate (13) is fixed on the lower end surface of the moving plate (11), and the vertical plate (13) passes through the interior of the moving groove body (8); the screw rod (15) is rotatably connected to the outer side of the vertical plate (13); the motor (16) is mounted on the upper end surface of the moving plate (11), and the output end of the motor (16) is fixedly connected to the screw rod (15); the limiting groove body (17) is provided on the side surface of the vertical plate (13); the moving block (14) is clamped in the interior of the limiting groove body (17), and the moving block (14) and the screw rod (15) are threadedly connected.

5. A novel inverter fault detection device according to claim 3, characterized in that: A pushing cylinder (12) is symmetrically fixed on the upper end surface of the lifting plate (4), and the output end of the pushing cylinder (12) is fixedly connected to one side of the moving plate (11).

6. A novel inverter fault detection device according to claim 4, characterized in that: A conductive block (20) is installed at the center of the inner side of the moving block (14), and elastic pads (19) are symmetrically installed on the inner side of the moving block (14) and are respectively located on the left and right sides of the conductive block (20).

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