Partial discharge automatic detection device

Abstract

Disclosed in the present invention is a partial discharge automatic detection device, comprising a driving unit, a vacuum suction unit and a partial discharge detection unit. The partial discharge detection unit is arranged inside the vacuum suction unit, and the vacuum suction unit is arranged on the driving unit; the driving unit drives the vacuum suction unit and the partial discharge detection unit to move to a detection position of an object under detection and enable the vacuum suction unit and the partial discharge detection unit to be attached to the surface of the detection position; one end of the vacuum suction unit is a suction end having an opening, the vacuum suction unit is attached to the surface of the detection position by means of the suction end, the partial discharge detection unit is attached to the surface of the detection position by means of the opening of the suction end, and the suction end of the vacuum suction unit is made of a flexible material; the vacuum suction unit is configured such that a vacuum is formed inside the vacuum suction unit, and the vacuum suction unit generates flexible deformation by means of a vacuum suction force formed with the surface of the detection position, so as to move toward the detection position, thereby pressing the partial discharge detection unit tightly against the detection position.

Description

A partial discharge automatic detection device Technical Field

[0001] The present invention belongs to the technical field of partial discharge detection, and in particular relates to an automatic partial discharge detection device. Background Art

[0002] Power capacitors are tested for voltage, capacitance, current, resistance, and partial discharge before leaving the factory. Partial discharge sensors are specialized instruments for detecting partial discharge within components within capacitor housings, determining discharge waveforms, glitches, and other data. Ultrasonic partial discharge sensors are typically used for nondestructive testing, as partial discharge in components generates ultrasonic waves.

[0003] In the existing technology, when using ultrasonic partial discharge sensors to detect capacitors, because the ultrasonic partial discharge sensor has a magnet in the center, the ultrasonic partial discharge sensor is usually manually magnetically attached to the capacitor case for detection. However, this method can only detect capacitors with magnetic cases, and cannot detect capacitors with non-magnetic cases. This limits its application and the efficiency of manual placement is relatively low.

[0004] Summary of the Invention

[0005] In view of the problems in the background technology, the present invention aims to provide an automatic partial discharge detection device, comprising a driving unit, a vacuum adsorption unit and a partial discharge detection unit, wherein the partial discharge detection unit is arranged inside the vacuum adsorption unit, and the vacuum adsorption unit is arranged on the driving unit;

[0006] The driving unit drives the vacuum adsorption unit and the partial discharge detection unit to move to a detection position of a detection object and causes the vacuum adsorption unit and the partial discharge detection unit to fit with a surface of the detection position;

[0007] One end of the vacuum adsorption unit is an open adsorption end, the vacuum adsorption unit is attached to the surface of the detection position through the adsorption end, the partial discharge detection unit is attached to the surface of the detection position through the opening of the adsorption end, and the adsorption end of the vacuum adsorption unit is made of a flexible material;

[0008] The vacuum adsorption unit is configured to form a vacuum inside thereof, and the vacuum adsorption unit generates flexible deformation through the vacuum adsorption force formed with the surface of the detection position to move toward the detection position, so as to press the partial discharge detection unit onto the detection position.

[0009] Preferably, a vacuum generator is included, which is connected to the vacuum adsorption unit and is used to evacuate the interior of the vacuum adsorption unit.

[0010] Preferably, after the vacuum generator stops suctioning and maintains vacuum pressure, the partial discharge detection unit starts detection.

[0011] Preferably, the vacuum adsorption unit is a flexible suction cup.

[0012] Preferably, the partial discharge detection unit is an ultrasonic partial discharge sensor.

[0013] Preferably, the driving unit includes a docking moving mechanism, a lateral moving mechanism, and a lifting mechanism. The lifting mechanism is arranged on the lateral moving mechanism, the docking moving mechanism is arranged on the lifting mechanism, and the vacuum adsorption unit is arranged on the docking moving mechanism. The docking moving mechanism drives the vacuum adsorption unit to move toward the detection position.

[0014] Preferably, it comprises a cantilever, one end of the cantilever is connected to the lifting mechanism, and the other end is connected to the docking movement mechanism.

[0015] Preferably, the cantilever, the docking movable mechanism, the vacuum adsorption unit and the partial discharge detection unit are provided in two groups, which are symmetrically arranged on both sides of the lifting mechanism. During detection, the detection object is set between the two vacuum adsorption units, and the two docking movable mechanisms respectively drive the two vacuum adsorption units to clamp the detection object.

[0016] Preferably, the detection object is arranged on a suspended conveyor line, the partial discharge detection unit is magnetic and includes a limiting mechanism, and when the driving unit overcomes the magnetic force between the partial discharge detection unit and the detection object to drive the vacuum adsorption unit and the partial discharge detection unit to reset, the limiting mechanism limits the shaking of the detection object.

[0017] Preferably, the limiting mechanism is a telescopic limiting mechanism, which has a limiting end that can be extended or retracted. Before the driving unit drives the vacuum adsorption unit and the partial discharge detection unit to reset, the limiting end of the telescopic limiting mechanism is extended to block the detection object to prevent it from shaking.

[0018] Due to the adoption of the above technical solution, the present invention has the following advantages and positive effects compared with the prior art:

[0019] The present invention covers the partial discharge detection unit on the surface of the detection position through a driving unit and a vacuum adsorption unit, so that the partial discharge detection unit can be stably covered on the surface of the detection position regardless of whether the detection position is made of magnetic material or non-magnetic material.

[0020] The present invention first drives the vacuum adsorption unit and the partial discharge detection unit to fit the surface of the detection position through the driving unit, and then uses the vacuum adsorption force of the vacuum adsorption unit to produce flexible deformation to press the partial discharge detection unit on the detection position, so that the driving force of the driving unit can be reduced. Because the driving force of the driving unit is too large, it will cause damage to the surface of the detection position. This problem will not exist when the vacuum adsorption force of the vacuum adsorption unit is used to produce flexible deformation to press the partial discharge detection unit on the detection position. At the same time, the flexible deformation force of the vacuum adsorption unit is relatively mild and the range of force application is large, so that the partial discharge detection unit can be stably and completely covered on the detection position, and there will be no problem of the contact surface with the detection position being large or small. Because if it is driven only by the driving unit, there will be a gap error between the mechanical motion structure of the driving unit, which will cause the partial discharge detection unit to be incompletely fitted with the surface of the detection position. If the partial discharge detection unit is incompletely fitted with the surface of the detection position, it will affect the detection result.

[0021] In addition, since the partial discharge detection unit of the present invention adopts ultrasonic detection method, placing the partial discharge detection unit in the vacuum environment of the vacuum adsorption unit can reduce external ultrasonic noise interference, making the adaptability of the present invention stronger, because there are many on-site equipment, which will also generate ultrasonic waves due to discharge or high-frequency vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0023] FIG1 is a front view of the present invention;

[0024] FIG2 is a partial enlarged view of FIG1 of the present invention;

[0025] FIG3 is a partial enlarged view of FIG2 of the present invention;

[0026] FIG4 is a top view of the present invention;

[0027] FIG5 is a partial enlarged view of FIG4 of the present invention;

[0028] FIG6 is a partial enlarged view of FIG5 of the present invention;

[0029] FIG7 is a side view of the present invention;

[0030] FIG8 is a partial enlarged view of FIG7 of the present invention;

[0031] FIG9 is a partial enlarged view of FIG7 of the present invention;

[0032] FIG10 is a schematic diagram of the connection between the traverse cylinder and the platform connector of the present invention;

[0033] FIG11 is a side view of the platform connector of the present invention;

[0034] FIG12 is a front view of the platform connector of the present invention;

[0035] FIG13 is a schematic diagram of the mounting plate and cantilever of the present invention;

[0036] FIG14 is a schematic diagram of the guide rail cylinder, suction cup seat, flexible suction cup and ultrasonic partial discharge sensor of the present invention.

[0037] Description of reference numerals:

[0038] 1. Suspension conveyor line; 2. Capacitor; 3. Machine base; 4. Slide rail; 5. Slide plate; 6. Transverse cylinder; 7. Double-ear joint; 8. Platform connector; 9. Lug; 10. Y-type joint; 11. Anchor; 12. Stand; 13. Double-track linear module; 14. Mounting plate; 15. Cantilever; 16. Connecting plate; 17. Guide cylinder; 18. Drive plate; 19. Suction cup seat; 20. Flexible suction cup; 21. Ultrasonic partial discharge sensor; 22. O-ring; 23. Magnet; 24. Limit cylinder; 25. Limit head; 26. Auxiliary cylinder; 27. Angle bracket. DETAILED DESCRIPTION

[0039] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are greatly simplified and use non-precise ratios, and are only used to facilitate and clearly illustrate the embodiments of the present invention.

[0040] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0041] Referring to Figures 1 to 14 , the core of the present invention is an automatic partial discharge detection device comprising a drive unit, a vacuum adsorption unit, and a partial discharge detection unit. The partial discharge detection unit is located within the vacuum adsorption unit, which is in turn located on the drive unit. In this embodiment, the detection target is capacitor 2, and the detection location is the housing of capacitor 2. By attaching the partial discharge detection unit to the surface of the housing, partial discharge detection within capacitor 2 is achieved. Of course, in other embodiments, the present invention can also be used to detect partial discharge in other products, and its application is not limited to capacitor 2.

[0042] The drive unit drives the vacuum adsorption unit and the partial discharge detection unit to move to a detection position of the detection object and causes the vacuum adsorption unit and the partial discharge detection unit to adhere to the surface of the detection position. One end of the vacuum adsorption unit is an open adsorption end, and the vacuum adsorption unit adheres to the surface of the detection position through the adsorption end, and the partial discharge detection unit adheres to the surface of the detection position through the opening of the adsorption end. The adsorption end of the vacuum adsorption unit is made of a flexible material.

[0043] The vacuum adsorption unit is configured to form a vacuum inside thereof, and the vacuum adsorption unit generates flexible deformation through the vacuum adsorption force formed with the surface of the detection position to move toward the detection position, so as to press the partial discharge detection unit on the detection position.

[0044] In this embodiment, the vacuum adsorption unit is a flexible suction cup 20, and the partial discharge detection unit is an ultrasonic partial discharge sensor 21. The use of the ultrasonic partial discharge sensor 21 can realize non-destructive detection of partial discharge inside the capacitor 2. Of course, in other embodiments, the vacuum adsorption unit and the partial discharge detection unit can also adopt other structures, which is not limited in this embodiment.

[0045] The ultrasonic partial discharge sensor 21 is attached to the surface of the capacitor 2 box through the driving unit and the flexible suction cup 20, so that the ultrasonic partial discharge sensor 21 can be stably attached to the surface of the capacitor 2 box regardless of whether the capacitor 2 box is made of magnetic or non-magnetic material.

[0046] The present invention first drives the flexible suction cup 20 and the ultrasonic partial discharge sensor 21 to fit the surface of the capacitor 2 box through the driving unit, and then uses the vacuum adsorption force of the flexible suction cup 20 to generate flexible deformation to press the ultrasonic partial discharge sensor 21 on the surface of the capacitor 2 box, so that the driving force of the driving unit can be reduced. Because the driving force of the driving unit is too large, it will cause damage to the surface of the capacitor 2 box, causing deformation of the surface of the capacitor 2 box. However, this problem will not exist if the vacuum adsorption force of the flexible suction cup 2 is used to generate flexible deformation to press the ultrasonic partial discharge sensor 21 on the surface of the capacitor 2 box. At the same time, the flexible deformation force of the flexible suction cup 20 is relatively mild and the force application range is large, so that the ultrasonic partial discharge sensor 21 can be stably and completely attached to the surface of the capacitor 2 box, and there will be no problem of the contact area with the capacitor 2 box surface being large or small. Because if it is driven only by the driving unit, there will be a gap error between the mechanical motion structure of the driving unit, which will cause the ultrasonic partial discharge sensor 21 to be incompletely attached to the surface of the capacitor 2 box. If the ultrasonic partial discharge sensor 21 is incompletely attached to the surface of the capacitor 2 box, it will affect the detection results.

[0047] Furthermore, since the ultrasonic partial discharge sensor 21 of the present invention utilizes ultrasonic detection, placing the ultrasonic partial discharge sensor 21 within the vacuum environment of the flexible suction cup 20 can reduce external ultrasonic noise interference, making the present invention more adaptable. This is because numerous on-site devices can also generate ultrasonic waves due to discharge or high-frequency vibration. Furthermore, since the flexible suction cup 20 is made of a flexible material, it has a certain shock-absorbing effect and can filter a certain amount of equipment vibration to reduce interference with the ultrasonic partial discharge sensor 21. Specifically, the flexible suction cup 20 can be made of a flexible material such as silicone or rubber.

[0048] That is to say, the present invention not only achieves a stable and reliable adhesion effect by attaching the ultrasonic partial discharge sensor 21 to the surface of the capacitor 2 box through the driving unit combined with the flexible suction cup 20, but also improves the detection accuracy of the ultrasonic partial discharge sensor 21.

[0049] The device further includes a vacuum generator, which is in communication with the flexible suction cup 20 and is used to evacuate the interior of the flexible suction cup 20. When the flexible suction cup 20 is attached to the surface of the capacitor 2 case, the vacuum generator evacuates the interior of the flexible suction cup 20, causing the flexible suction cup 20 to flexibly deform and move toward the surface of the capacitor 2 case. When the flexible suction cup 20 flexibly deforms and moves toward the surface of the capacitor 2 case, it drives the ultrasonic partial discharge sensor 21 to adhere closely to the surface of the capacitor 2 case, thereby achieving the effect of firmly adhering the ultrasonic partial discharge sensor 21 to the surface of the capacitor 2 case. After the flexible suction cup 20 firmly adhering the ultrasonic partial discharge sensor 21 to the surface of the capacitor 2 case, the vacuum generator stops suctioning and maintains vacuum pressure, and then the ultrasonic partial discharge sensor 21 begins detection. This prevents the noise and vibration generated by the vacuum generator from interfering with the ultrasonic partial discharge sensor 21 during operation.

[0050] The drive unit includes a docking mechanism, a lateral movement mechanism, and a lifting mechanism. It also includes a base 3, on which the lateral movement mechanism is mounted. Specifically, base 3 is a square frame structure welded from square steel. The four inner corners of the frame are reinforced with triangular steel plates. The top surface of base 3 is finely machined, and adjustable feet 11 are installed at the bottom of base 3. Adjusting feet 11 can adjust the levelness of the entire automatic partial discharge detection device.

[0051] The transverse movement mechanism specifically includes two slide rails 4, four sliders, a slide plate 5, and a transverse cylinder 6. The two slide rails 4 are respectively mounted on both sides of the machine base 3 by screws, and the two slide rails 4 are arranged in parallel. Two sliders are respectively provided on the two slide rails 4. The slide plate 5 is mounted on the four sliders by screws, and the slide plate 5 can slide on the two slide rails 4 via the four sliders. The fixed end of the transverse cylinder 6 is hinged to one end of the machine base 3 via a double-ear joint 7. Specifically, the double-ear joint 7 has two mounting ears. The fixed end of the transverse cylinder 6 is arranged between the two mounting ears of the double-ear joint 7. The fixed end of the transverse cylinder 6 is hinged to the machine base 3 by a rotating shaft passing through the two mounting ears of the double-ear joint 7 and the fixed end of the transverse cylinder 6. The slide 5 is provided with a platform connector 8 at one end away from the double-ear connector 7. The platform connector 8 extends away from the slide 5 and is provided with a lug 9. The telescopic rod of the traverse cylinder 6 is hingedly connected to the lug 9 on the platform connector 8 via a Y-shaped connector 10. Specifically, the Y-shaped connector 10 is threadedly connected to the telescopic rod of the traverse cylinder 6. The Y-shaped connector 10 also has two mounting ears. The lug 9 is located between the two mounting ears of the Y-shaped connector 10. A rotating shaft is provided through the two mounting ears and the lug 9 of the Y-shaped connector 10, so that the telescopic rod of the traverse cylinder 6 is hingedly connected to the lug 9. The telescopic rod of the traverse cylinder 6 can drive the slide 5 to slide laterally by extending and retracting the telescopic rod of the traverse cylinder 6.

[0052] The lifting mechanism is arranged on the horizontal moving mechanism. Specifically, a vertical frame 12 is provided on the slide 5. The lifting mechanism is specifically a linear module. In this embodiment, a double-track linear module 13 is used to make the lifting more stable. The double-track linear module 13 is vertically installed on the vertical frame 12.

[0053] The slider of the dual-track linear module 13 is provided with a mounting plate 14. This mounting plate 14 is provided with a cantilever 15 extending toward the capacitor 2. A connecting plate 16 is provided at the end of the cantilever 15 away from the mounting plate 14. The docking mechanism is mounted on this connecting plate 16. The docking mechanism specifically includes a docking cylinder. In this embodiment, the docking cylinder is a guide cylinder 17, which makes the extension and retraction more stable and reliable.

[0054] The telescopic rod of the guide cylinder 17 is equipped with a drive plate 18. A suction cup 19 is screwed onto the drive plate 18. A flexible suction cup 20 is mounted on the suction cup 19. An ultrasonic partial discharge sensor 21 is mounted within the flexible suction cup 20 using silicone. The extension of the telescopic rod of the guide cylinder 17 drives the flexible suction cup 20 toward the capacitor 2.

[0055] Furthermore, each screw connecting the drive plate 18 and the suction cup seat 19 is sleeved with an O-ring 22. When the guide cylinder 17 drives the flexible suction cup 20 and the ultrasonic partial discharge sensor 21 to fit with the surface of the capacitor 2 case, the flexible suction cup 20 and the ultrasonic partial discharge sensor 21 can be automatically aligned through the adaptive elastic deformation of the O-ring 22. Because there will be slight tilt errors due to assembly errors and the extension of the guide cylinder 17, the flexible suction cup 20 and the ultrasonic partial discharge sensor 21 are not completely aligned with the surface of the capacitor 2 case, so that the ultrasonic partial discharge sensor 21 is not completely aligned with the surface of the capacitor 2 case. Therefore, when the flexible suction cup 20 and the ultrasonic partial discharge sensor 21 are in contact with the surface of the capacitor 2 case, the reaction force exerted by the surface of the capacitor 2 case on the flexible suction cup 2 causes the O-ring 22 to adaptively elastically deform and realize automatic alignment of the ultrasonic partial discharge sensor 21.

[0056] In this embodiment, the cantilever 15, the connecting plate 16, the guide rail cylinder 17, the suction cup seat 19, the flexible suction cup 20 and the ultrasonic partial discharge sensor 21 are provided in two groups, which are symmetrically arranged on two sides of the mounting plate 14. The capacitor 2 can be detected by two ultrasonic partial discharge sensors 21 at the same time. During the detection, the two guide rail cylinders 17 drive the two flexible suction cups 20 to clamp the capacitor 2, just like a person's two arms holding the capacitor 2 tightly. Because the capacitor 2 in this embodiment is suspended on the suspension conveyor line 1, the capacitor 2 is transported to the detection station by the suspension conveyor line 1, and the capacitor 2 is clamped by the two flexible suction cups 20 so that the capacitor 2 is not easy to shake.

[0057] Furthermore, the two connecting plates 16 are connected to the two cantilevers 15 respectively through waist-shaped adjustment grooves and bolts. The waist-shaped adjustment grooves make the distance between the two flexible suction cups 20 adjustable, and the distance between the two flexible suction cups 20 can be adaptively adjusted according to different models of capacitors 2.

[0058] Since the ultrasonic partial discharge sensor 21 has its own magnet 23, when detecting a capacitor 2 with magnetism in the detection box, the guide rail cylinder 17 needs to overcome the magnetic force between the ultrasonic partial discharge sensor 21 and the capacitor 2 box when driving the flexible suction cup 20 to reset after detection. When the two guide rail cylinders 17 do not move synchronously, the reset of the flexible suction cup 2 will cause the capacitor 2 to shake. If the shaking is severe, the capacitor 2 will fall off. Therefore, a limiting mechanism is also provided in this embodiment to limit the shaking of the capacitor 2.

[0059] The specific limiting mechanism is a telescopic limiting mechanism, which has a limiting end that can be extended or retracted. In this embodiment, the telescopic limiting mechanism is a limiting cylinder 24, and a limiting head 25 is provided on the telescopic rod of the limiting cylinder 24. Before the guide rail cylinder 17 drives the flexible suction cup 20 to reset, the limiting cylinder 24 drives the limiting head 25 to extend to support the blocking capacitor 2, thereby preventing the capacitor 2 from shaking when the subsequent guide rail cylinder 17 overcomes the magnetic force and drives the flexible suction cup 20 to reset.

[0060] Furthermore, the docking movement mechanism also includes an auxiliary cylinder 26, the fixed end of which is connected to the suction cup seat 19, and the telescopic rod of the auxiliary cylinder 26 is connected to the connecting plate 16 via an angle bracket 27. The auxiliary cylinder 26 is reverse mounted, which increases the driving force. The auxiliary cylinder 26 can assist the guide rail cylinder 17 in overcoming the magnetic force between the ultrasonic partial discharge sensor 21 and the capacitor 2 housing to drive the flexible suction cup 20 to reset. The auxiliary cylinder 26 telescopic rod pulls faster than the guide rail cylinder 17, allowing it to drive the ultrasonic partial discharge sensor 21 away from the capacitor 2 housing in advance, opening a small gap between the ultrasonic partial discharge sensor 21 and the capacitor 2 housing in advance, and then smoothly pull the ultrasonic partial discharge sensor 21 away from the capacitor 2 housing together with the guide rail cylinder 17.

[0061] The working process of the present invention is further described below:

[0062] First, the slide plate 5 is driven to move horizontally by the transverse cylinder 6, and the mounting plate 14 is driven to rise and fall by the double-track linear module 13 so that the two flexible suction cups 20 are aligned with the detection position on the capacitor 2. Then the two auxiliary cylinders 26 and the guide cylinder 17 drive the two flexible suction cups 20 and the two ultrasonic partial discharge sensors 21 to fit the two sides of the capacitor 2 box respectively. At this time, the driving force of the auxiliary cylinder 26 and the guide cylinder 17 is set to be smaller to prevent the capacitor 2 box from being crushed. After bonding, the vacuum generator draws vacuum inside the flexible suction cup 20. The flexible suction cup 20 generates flexible deformation through vacuum adsorption force to press the ultrasonic partial discharge sensor 21 on the surface of the capacitor 2 box. Then the vacuum generator stops suction and maintains vacuum pressure. The ultrasonic partial discharge sensor 21 starts detection. After detection, the vacuum generator relieves pressure on the flexible suction cup 20. The limit cylinder 24 drives the limit head 25 to extend to support the blocking capacitor 2. The auxiliary cylinder 26 and the guide rail cylinder 17 drive the flexible suction cup 20 away from the capacitor 2 to reset. After the flexible suction cup 20 is reset, the limit cylinder 24 drives the limit head 25 to retract. Finally, the transverse cylinder 6 and the double-track linear module 13 drive the flexible suction cup 20 to reset.

[0063] The present invention uses a driving unit combined with a vacuum adsorption unit to attach the partial discharge detection unit to the surface of the detection position, making the partial discharge detection unit more stable during detection and less prone to shaking. It is also applicable to capacitors of various specifications.

[0064] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they still fall within the scope of protection of the present invention.

Claims

1. A partial discharge automatic detection device, characterized in that: It comprises a driving unit, a vacuum adsorption unit and a partial discharge detection unit, wherein the partial discharge detection unit is arranged inside the vacuum adsorption unit, and the vacuum adsorption unit is arranged on the driving unit; The driving unit drives the vacuum adsorption unit and the partial discharge detection unit to move to a detection position of a detection object and makes the vacuum adsorption unit and the partial discharge detection unit fit with a surface of the detection position; One end of the vacuum adsorption unit is an open adsorption end, the vacuum adsorption unit is attached to the surface of the detection position through the adsorption end, the partial discharge detection unit is attached to the surface of the detection position through the opening of the adsorption end, and the adsorption end of the vacuum adsorption unit is made of a flexible material; The vacuum adsorption unit is configured to form a vacuum inside thereof, and the vacuum adsorption unit generates a flexibly deformed vacuum adsorption force formed with the surface of the detection position to move toward the detection position, so as to press the partial discharge detection unit onto the detection position.

2. The automatic partial discharge detection device according to claim 1, characterized in that: A vacuum generator is included, which is connected to the vacuum adsorption unit and is used to evacuate the interior of the vacuum adsorption unit.

3. The automatic partial discharge detection device according to claim 2, characterized in that: After the vacuum generator stops suctioning and maintains vacuum pressure, the partial discharge detection unit starts detection.

4. The automatic partial discharge detection device according to claim 1, characterized in that: The vacuum adsorption unit is a flexible suction cup.

5. The automatic partial discharge detection device according to claim 1, characterized in that: The partial discharge detection unit is an ultrasonic partial discharge sensor.

6. The automatic partial discharge detection device according to claim 1, characterized in that: The driving unit includes a docking moving mechanism, a lateral moving mechanism, and a lifting mechanism. The lifting mechanism is arranged on the lateral moving mechanism, the docking moving mechanism is arranged on the lifting mechanism, and the vacuum adsorption unit is arranged on the docking moving mechanism. The docking moving mechanism drives the vacuum adsorption unit to move toward the detection position.

7. The automatic partial discharge detection device according to claim 6, characterized in that: It comprises a cantilever, one end of which is connected to the lifting mechanism, and the other end of which is connected to the docking moving mechanism.

8. The automatic partial discharge detection device according to claim 7, characterized in that: The cantilever, the docking movable mechanism, the vacuum adsorption unit and the partial discharge detection unit are provided in two groups, which are symmetrically arranged on both sides of the lifting mechanism. During detection, the detection object is arranged between the two vacuum adsorption units, and the two docking movable mechanisms respectively drive the two vacuum adsorption units to clamp the detection object.

9. The automatic partial discharge detection device according to claim 1, characterized in that: The detection object is arranged on a suspended conveyor line, the partial discharge detection unit is magnetic and includes a limiting mechanism, and when the driving unit overcomes the magnetic force between the partial discharge detection unit and the detection object to drive the vacuum adsorption unit and the partial discharge detection unit to reset, the limiting mechanism limits the shaking of the detection object.

10. The automatic partial discharge detection device according to claim 9, characterized in that: The limiting mechanism is a telescopic limiting mechanism, which has a limiting end that can be extended or retracted. Before the driving unit drives the vacuum adsorption unit and the partial discharge detection unit to reset, the limiting end of the telescopic limiting mechanism is extended to block the detection object to prevent it from shaking.

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