Multifunctional partial discharge itinerant detector

Abstract

The utility model relates to the field of electrical equipment detection and maintenance, and discloses a multifunctional partial discharge itinerant detector which comprises a shell and a dustproof assembly, openings are formed in the two sides of the shell, sensor interfaces are arranged at the openings, the dustproof assembly comprises sliding grooves formed in the two ends of the shell, connecting grooves are symmetrically formed in the top of the shell, and the connecting grooves are communicated with the sliding grooves. Dustproof plates are symmetrically arranged in the two ends of the shell, limiting blocks are fixedly connected to the surfaces of the bottoms of the dustproof plates, connecting rods are fixedly connected to the tops of the dustproof plates, hanging pieces are fixedly connected to the centers of the tops of the connecting rods, the two ends of the shell are sleeved with dustproof sleeves, and clamping grooves are formed in the top ends of the interiors of the dustproof sleeves. And a placement groove is formed in the top of the shell. According to the utility model, through the arrangement of the dustproof assembly, the dual dustproof effect is realized, so that foreign matters and dust are prevented from entering the multifunctional partial discharge itinerant detector during daily inspection, and protective measures are taken for the multifunctional partial discharge itinerant detector.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of power equipment detection and maintenance especially relates to multifunctional partial discharge inspection instrument. BACKGROUND

[0002] Electrical equipment plays a vital role in the power system, and its operating state directly affects the stability and safety of the entire system. Partial discharge is a common phenomenon in electrical equipment, which is caused by insulation defects or poor contact. If not timely discovered and handled, partial discharge may gradually worsen, eventually leading to equipment failure or accidents. Therefore, partial discharge detection of electrical equipment is an important means to ensure its safe operation.

[0003] The multifunctional partial discharge inspection instrument integrates multiple detection technologies, including ground electric wave, ultrasonic wave, ultra-high frequency, and high-frequency current. These technologies have their own advantages and can detect and analyze partial discharge from different angles. The existing multifunctional partial discharge inspection instrument adopts a handheld design, which is lightweight and portable, making it convenient for users to perform rapid detection at different locations. Additionally, the user interface is friendly and easy to operate, allowing partial discharge detection without complex operations.

[0004] However, the interfaces of the existing multifunctional partial discharge inspection instrument are exposed, and there is no dust protection at the interface during routine inspection, which may cause foreign matter to enter the interface, resulting in short circuit and damage to the equipment. Therefore, a multifunctional partial discharge inspection instrument is proposed to solve the above problems. SUMMARY

[0005] To address the above shortcomings, the utility model provides a multifunctional partial discharge inspection instrument, aiming to improve the existing multifunctional partial discharge inspection instrument in the prior art, where the interfaces are exposed, and there is no dust protection at the interface during routine inspection, which may cause foreign matter to enter the interface, resulting in short circuit and damage to the equipment.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: a multifunctional partial discharge inspection instrument includes a shell, the two sides of the shell are open, a sensor interface is arranged at the opening, and a dustproof assembly is further included. The dustproof assembly includes a sliding groove opened in the interior of both ends of the shell, a connecting groove is symmetrically opened at the top of the shell, dustproof plates are symmetrically arranged in the interior of both ends of the shell, limit blocks are fixedly connected to the bottom surfaces of the dustproof plates, connecting rods are fixedly connected to the top portions of the dustproof plates, a hanging piece is fixedly connected to the top center of the connecting rod, dustproof sleeves are sleeved on both ends of the shell, clamping grooves are opened in the interior top ends of the dustproof sleeves, and a placing groove is opened at the top of the shell.

[0007] As a further description of the above technical scheme: a non-slip sleeve is fixedly connected to the outside of the shell.

[0008] As the further description of the above technical solutions: the inside of the right side opening of the shell is sequentially provided from top to bottom with a UHF sensor interface, a high-frequency current sensor interface, a switch and a charging port;

[0009] As the further description of the above technical solutions: the inside of the right side opening of the shell is sequentially provided from top to bottom with a UHF sensor interface, a high-frequency current sensor interface, a switch and a charging port;

[0010] As the further description of the above technical solutions: the dustproof plate is movably connected in the sliding groove, and the top end of the dustproof plate is fixedly connected with the bottom surface of the connecting rod through the connecting groove;

[0011] As the further description of the above technical solutions: the limiting blocks are fixedly connected to the two side surfaces of the dustproof plate, and the limiting blocks are used for limiting the movement range of the dustproof plate;

[0012] As the further description of the above technical solutions: the connecting rod is arranged in the placing groove, and the dustproof sleeve is sleeved on the surface of the connecting groove;

[0013] As the further description of the above technical solutions: the two ends of the connecting rod are clamped in the clamping grooves in the inner wall surface of the dustproof sleeve.

[0014] The utility model has the advantages of the following:

[0015] 1、The dustproof plate and the dustproof sleeve arranged in the dustproof assembly realize the effect of double dustproof, thereby avoiding the entry of foreign matters and dust in daily inspection and carrying, protecting the multifunctional partial discharge inspection instrument, and further prolonging the service life of the multifunctional partial discharge inspection instrument.

[0016] 2、The anti-skid sleeve is made of soft silica gel, and the soft silica gel has a certain elasticity, which can play a certain protection role when the instrument is accidentally dropped. DRAWINGS

[0017] Figure 1 The utility model provides a multifunctional partial discharge inspection instrument's three -dimensional schematic view.

[0018] Figure 2 The utility model provides a multifunctional partial discharge inspection instrument's dustproof assembly's structure schematic view.

[0019] Figure 3 The utility model provides a multifunctional partial discharge inspection instrument's switch's structure schematic view.

[0020] Figure 4 The utility model provides a multifunctional partial discharge inspection appearance's external sensor interface's structure diagram.

[0021] Legend:

[0022] 1, shell; 2, antiskid sleeve; 3, dustproof assembly; 31, sliding groove; 32, connecting groove; 33, dustproof plate; 34, limiting block; 35, connecting rod; 36, hanging piece; 37, dustproof sleeve; 38, clamping groove; 39, placing groove; 4, UHF sensor interface; 5, high-frequency current sensor interface; 6, switch; 7, charging port; 8, built-in air ultrasonic sensor; 9, built-in ground voltage sensor; 10, external sensor interface. Specific embodiments

[0023] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] Reference Figure 1 - Figure 2 An embodiment provided by the utility model: a multifunctional partial discharge inspection appearance, including shell 1, dustproof assembly 3, the both sides of shell 1 are open, and dustproof assembly 3 includes the sliding groove 31 that is set up in the inside of the both ends of shell 1, and the connecting groove 32 that is set up in the top of shell 1 is symmetrical, and the dustproof plate 33 that is set up in the inside of the both ends of shell 1 is symmetrical, and the limiting block 34 that is fixedly connected to the bottom surface of dustproof plate 33 is symmetrical, and the connecting rod 35 that is fixedly connected to the top of dustproof plate 33, and the hanging piece 36 that is fixedly connected to the top central of connecting rod 35, and the dustproof sleeve 37 that is set up in the both ends of shell 1, and the clamping groove 38 that is set up in the inside top of dustproof sleeve 37, and the placing groove 39 that is set up in the top of shell 1, and the antiskid sleeve 2 that is fixedly connected to the outside of shell 1, and the antiskid sleeve 2 is made of soft silica gel and has elasticity, and the dustproof effect of double protection is realized through the dustproof plate and 33 dustproof sleeve 37 set up in dustproof assembly 3, thereby avoiding the entry of foreign matter and dust in daily inspection and carrying, and the multifunctional partial discharge inspection appearance is protected, and the service life of the multifunctional partial discharge inspection appearance is improved.

[0025] Reference Figure 3 - Figure 4The inside of the right opening of the shell 1 is sequentially provided from top to bottom with a very high frequency sensor interface 4, a high frequency current sensor interface 5, a switch 6 and a charging port 7. The very high frequency sensor is used to receive the very high frequency electromagnetic wave signals radiated when the high voltage equipment has partial discharge, and the detection frequency band is 300MHz-1500MHz. When detecting, the sensor is placed at the non-metal continuous part of the high voltage equipment, and the very high frequency signals generated by the partial discharge can be detected. The high frequency intelligent sensor is used to receive the high frequency signals generated when the high voltage equipment has partial discharge, and the detection frequency band is 3MHz-30MHz. The high frequency sensor is mainly placed at the shielding tip of the power equipment (such as cable grounding down lead, transformer core grounding wire and clamp grounding wire), and adopts an open clamping mode to measure the related signals. The inside of the left opening of the shell 1 is sequentially provided from top to bottom with a built-in air ultrasonic sensor 8, a built-in ground voltage sensor 9 and an external sensor interface 10. The ultrasonic sensor module is used to receive the ultrasonic signals generated when the high voltage equipment has partial discharge, and the detection frequency band is 20kHz-200kHz. The ultrasonic sensor is the main component for collecting ultrasonic signals. The sensor adopts a contact or non-contact mode to measure the partial discharge of the power equipment. The ground voltage sensor is used to receive the transient ground voltage signals generated when the high voltage equipment has partial discharge, and the detection frequency band is 3MHz-100MHz. When testing, the sensor is tightly attached to the surface of the cabinet through magnetic attraction. The dustproof plate 33 is movably connected inside the sliding groove 31. The top end of the dustproof plate 33 passes through the connecting groove 32 and is fixedly connected with the bottom surface of the connecting rod 35. The limiting block 34 is fixedly connected with the two side surfaces of the dustproof plate 33. The limiting block 34 is used to limit the movement range of the dustproof plate 33. The connecting rod 35 is arranged inside the placing groove 39. The dustproof sleeve 37 is sleeved on the surface of the connecting groove 32. The two ends of the connecting rod 35 are clamped inside the clamping groove 38 on the inner wall surface of the dustproof sleeve 37. The anti-slip sleeve 2 can prevent the instrument from slipping during daily use, and can also provide a comfortable grip feeling, improving the inspection experience of the inspection personnel. At the same time, the anti-slip sleeve 2 is made of soft silica gel, which has a certain elasticity and can provide certain protection when the instrument accidentally falls.

[0026] Working principle: in daily inspection, need to carry multifunctional partial discharge inspection instrument, in carrying, first of all, press down the connecting rod 35, drive dustproof plate 33 to move downwards, make dustproof plate 33 slide in the inside of sliding slot 31, press down the connecting rod 35 to the inside of placing groove 39, at this moment, dustproof plate 33 will both ends of shell 1 completely closed, at this moment, dustproof cover 37 is equipped in both ends of shell 1 and makes clamping groove 38 limit both ends of connecting rod 35, simultaneously, dustproof cover 37 will connecting groove 32 completely cover, thereby realizes the effect of double dustproof, thereby avoids the entry of foreign matter and dust in daily inspection carrying, carries out protection measures to multifunctional partial discharge inspection instrument, and then improves the service life of multifunctional partial discharge inspection instrument, when using, first of all, remove dustproof cover 37, move upwards connecting rod 35 and make connecting rod 35 drive dustproof plate 33 to move upwards, at this moment, limiting block 34 and connecting groove 32 limit dustproof plate 33, through the hanger 36, multifunctional partial discharge inspection instrument can be hung in the appropriate position, at this moment, both ends of multifunctional partial discharge inspection instrument are opened, can connect external sensor and carry out partial discharge inspection.

[0027] Finally, it should be noted that: the above only for preferred embodiments of the utility model have, and do not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. that is done within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A multifunctional partial discharge patrol instrument, comprising a shell (1), the two sides of the shell (1) are open, and a sensor interface is arranged at the opening, characterized in that: It also includes dustproof assembly (3), dustproof assembly (3) includes chute (31) opened in the inside of the both ends of shell (1), the top of shell (1) is opened in the inside of the both ends of shell (1) symmetrically, the both ends of shell (1) are provided with dustproof plate (33) symmetrically, the bottom surface of dustproof plate (33) is fixedly connected with limiting block (34), the top of dustproof plate (33) is fixedly connected with connecting rod (35), the top of connecting rod (35) is fixedly connected with hanging piece (36), the both ends of shell (1) are provided with dustproof cover (37), the inside of dustproof cover (37) is provided with clamping groove (38), the top of shell (1) is provided with placing groove (39).

2. The multi-functional partial discharge patrol instrument according to claim 1, characterized in that: The outer side of the shell (1) is fixedly connected with an anti-skid sleeve (2).

3. The multi-functional partial discharge patrol instrument according to claim 1, characterized in that: The right side opening of the shell (1) is provided with a UHF sensor interface (4), a high-frequency current sensor interface (5), a switch (6) and a charging port (7) from top to bottom.

4. The multi-functional partial discharge patrol instrument according to claim 1, characterized in that: The left side opening of the shell (1) is provided with a built-in air ultrasonic sensor (8), a built-in ground voltage sensor (9) and an external sensor interface (10) from top to bottom.

5. The multi-functional partial discharge patrol instrument according to claim 1, characterized in that: The dustproof plate (33) is movably connected in the inside of the chute (31), and the top of the dustproof plate (33) is fixedly connected with the bottom surface of the connecting rod (35) through the connecting slot (32).

6. The multi-functional partial discharge patrol instrument according to claim 1, characterized in that: The limiting block (34) is fixedly connected on both sides of the dustproof plate (33), and the limiting block (34) is used for limiting the moving range of the dustproof plate (33).

7. The multi-functional partial discharge patrol instrument according to claim 1, characterized in that: The connecting rod (35) is arranged in the inside of the placing groove (39), and the dustproof cover (37) is arranged on the surface of the connecting slot (32).

8. The multi-functional partial discharge patrol instrument according to claim 1, characterized in that: The both ends of the connecting rod (35) are clamped in the inside of the clamping groove (38) of the inner wall surface of the dustproof cover (37).

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