Wireless transmission partial discharge detection device

Abstract

The utility model relates to a detection device, in particular to a wireless transmission partial discharge detection device. A wireless transmission partial discharge detection device for cables with different diameters comprises a data acquisition unit, a connecting line, a fixing frame and a fixed surrounding conductor, the fixing frame is arranged at the top of the data acquisition unit, the fixed surrounding conductor is arranged at the top of the fixing frame, and the bottom of the fixed surrounding conductor is connected with one end of the data acquisition unit through the connecting line. The screw is rotated and the pressing plates are driven to move oppositely, the clamping plates move and drive the protection plates to move oppositely through the second sliding rods and clamp the tested cable, the cable is clamped by the two protection plates at the moment, the screw continues to be rotated, and the second sliding rods on the opposite sides of the protection plates slide along the pressing plates and compress the first springs at the same time. The protective plate clamps the tested cable under the action of the compression elastic force of the first spring, so that the cable is clamped and fixed, cables with different diameters can be limited and fixed, and the situation that the surrounding conductor falls off is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a detection device especially relates to a partial discharge detection device of wireless transmission. BACKGROUND

[0002] Partial discharge detection plays a crucial role in the maintenance and management of electrical equipment. Partial discharge refers to a transient discharge phenomenon that occurs when the local electric field strength inside or on the surface of insulating materials exceeds its tolerance. It often occurs in high-voltage power equipment such as transformers, cables, switch cabinets, etc.

[0003] The existing detection device design is relatively fixed, and it is difficult to flexibly adapt to different diameter cables. When the sensor cannot tightly surround the conductor, it may cause the conductor to fall off, affecting the accuracy and reliability of the detection, which not only reduces the accuracy of the detection result, but also may cause misjudgment, increasing maintenance cost and risk. UTILITY MODEL CONTENT

[0004] In order to overcome the shortcomings of the existing detection device design, which is relatively fixed and difficult to flexibly adapt to different diameter cables, and thus causes the conductor to fall off, affecting the accuracy and reliability of the detection, the technical problem to be solved is to provide a partial discharge detection device of wireless transmission for different diameter cables.

[0005] The technical scheme of the utility model is: a partial discharge detection device of wireless transmission, comprising a data collector, a connecting line, a fixing frame, a fixed ring around the conductor, a connecting plate, a movable ring around the conductor and a compression mechanism, the top of the data collector is provided with the fixing frame, the top of the fixing frame is provided with the fixed ring around the conductor, the bottom of the fixed ring around the conductor is connected with one end of the data collector through the connecting line, the fixed ring around the conductor is rotatably provided with the movable ring around the conductor on one side, the fixed ring around the conductor and the movable ring around the conductor are both provided with the connecting plate on the side away from the rotating connection, and the inner sides of the fixed ring around the conductor and the movable ring around the conductor are both provided with the compression mechanism.

[0006] As a preferred technical scheme of the utility model, the compression mechanism comprises a fixed seat, a screw rod, a first sliding rod and a pressing plate, the fixed seats are symmetrically arranged on both sides of the fixed ring around the conductor and the movable ring around the conductor, the screw rods are threadedly arranged on the fixed seats on one side of the fixed ring around the conductor and the movable ring around the conductor, the first sliding rods are slidingly arranged on the fixed seats on the other side, and the ends of the screw rods and the first sliding rods are connected with the pressing plate.

[0007] As a preferred technical scheme of the utility model, it further comprises a guard plate, a second sliding rod and a first spring, the second sliding rods are symmetrically arranged on the pressing plate, the ends of the second sliding rods are connected with the guard plate, and the first springs are wound around the second sliding rods.

[0008] As a preferred technical scheme of the utility model, further comprising guide rod, clamping plate and second spring, the connecting plate located on the side of the fixed ring around the conductor is provided with a sliding slot, the guide rod is symmetrically arranged in the sliding slot, the clamping plate is symmetrically arranged on the guide rod and slides together, and the second spring is wound around the guide rod.

[0009] As a preferred technical scheme of the utility model, further comprising non-slip mat, the guard plate is provided with the non-slip mat.

[0010] As a preferred technical scheme of the utility model, further comprising wire rack, the data collector is provided with the wire rack on the top.

[0011] Compared with the prior art, the utility model has the beneficial effects that: by rotating the screw rod and simultaneously moving the pressing plate towards each other, the clamping plate moves while the guard plate is moved towards each other and clamps the measured cable through the second sliding rod, at this time, the two guard plates clamp the cable, continue to rotate the screw rod, at this time, the second sliding rod on the opposite side of the guard plate slides along the pressing plate and simultaneously compresses the first spring, the guard plate clamps the measured cable under the compression elastic force of the first spring, so that the cable is clamped and fixed, and different diameter cables can be fixed and limited, and the situation that the conductor around the conductor falls off is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without creative labor for those skilled in the art.

[0013] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0014] Figure 2 It is a three-dimensional structure schematic view of the utility model fixed ring around the conductor and the moving ring around the conductor and other parts.

[0015] Figure 3 It is a three-dimensional structure sectional view of the connecting plate of the utility model.

[0016] Figure 4 It is Figure 3 It is an enlarged view of A in the figure.

[0017] Figure 5 It is a three-dimensional structure schematic view of the screw rod, the first sliding rod and the pressing plate parts of the utility model.

[0018] As shown in the figure, the utility model discloses a data acquisition device, including fixed frame 2, fixed ring conductor 3, movable ring conductor 4, fixed seat 5, screw 6, first slide rod 7, pressing plate 8, guard plate 9, second slide rod 10, first spring 11, guide rod 12, clamping plate 13, second spring 14, antiskid pad 15 and wire frame 16, fixed frame 2 is provided with fixed ring conductor 3 and movable ring conductor 4, and fixed ring conductor 3 and movable ring conductor 4 are connected through first slide rod 7 and second slide rod 10, and first slide rod 7 and second slide rod 10 are connected through pressing plate 8. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical schemes and beneficial effects of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and not to limit the utility model.

[0020] Therefore, one feature described in the specification will be used to explain one feature of one embodiment of the utility model, and it is not implied that each embodiment of the utility model must have the described feature. In addition, it should be noted that the specification describes many features. Although certain features can be combined together to show possible system designs, these features can also be used in other combinations that are not explicitly described. Therefore, unless otherwise stated, the described combination is not intended to be limiting.

[0021] In the description of the present application, the terms "first", "second" are only used for description purposes and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0023] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with specific embodiments and with reference to the drawings. It should be understood that these descriptions are only exemplary and not intended to limit the scope of the utility model. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0024] Embodiment: a wireless transmission partial discharge detection device, like Figures 1-5As shown, the system includes a data acquisition unit 1, a connecting cable 101, a mounting bracket 2, a fixed winding conductor 3, a connecting plate 301, a movable winding conductor 4, a mounting base 5, a screw 6, a first sliding rod 7, a pressure plate 8, a protective plate 9, a second sliding rod 10, a first spring 11, a guide rod 12, a clamping plate 13, a second spring 14, an anti-slip pad 15, and a wire frame 16. The mounting brackets 2 are symmetrically arranged on the left and right sides of the upper front of the data acquisition unit 1. The top of the symmetrical mounting brackets 2 is connected to the fixed winding conductor 3. A data interface is located in the middle of the lower side of the fixed winding conductor 3. One end of the connecting cable 101 is connected to the data interface, and the other end is connected to the rear end of the data acquisition unit 1. The fixed winding conductor 3 is hinged to the left side of the moving winding conductor 4. Connecting plates 301 are provided on the right sides of both the fixed winding conductor 3 and the moving winding conductor 4. A set of fixing seats 5 is symmetrically arranged on both the front and rear sides of the fixed winding conductor 3 and the moving winding conductor 4. The fixing seats 5 are symmetrically arranged front and rear. Screws 6 are threaded onto the fixing seats 5 on the front side of both the fixed winding conductor 3 and the moving winding conductor 4. First sliding rods 7 are slidably arranged on the rear fixing seats 5. A pressure plate 8 is connected to the ends of the screws 6 and the first sliding rods 7. The pressure plate 8 is connected to the bottom of the upper screw 6 and the upper first sliding rod 7. The lower screw... The top of rod 6 and the first sliding rod 7 are connected to a pressure plate 8. The upper and lower pressure plates 8 are symmetrically arranged. The four corners of the pressure plates 8 are symmetrically and slidably equipped with second sliding rods 10. The end of each second sliding rod 10 away from the pressure plate 8 is connected to an arc-shaped guard plate 9. The arc-shaped guard plate 9 can reduce the damage caused by the pressure plate 8 directly pressing on the cable being tested, thus achieving the effect of protecting the cable. Each second sliding rod 10 is wound with a first spring 11. One end of the first spring 11 is connected to the guard plate 9, and the other end is connected to the bottom of the pressure plate 8. A slot is opened on the connecting plate 301 located on the right side of the moving winding conductor 3, located on the fixed winding conductor. A groove is provided on the connecting plate 301 on the right side of 3. Guide rods 12 are symmetrically arranged in the groove. A locking plate 13 is slidably arranged on the symmetrical guide rods 12. The upper end of the locking plate 13 is hook-shaped. The locking plate 13 slides along the guide rods 12, can pass through the groove and limit the connection plate 301 on the right side of the moving conductor 3. A second spring 14 is wound on each of the symmetrical guide rods 12. One end of the second spring 14 is connected to the locking plate 13 and the other end is connected to the inner wall of the right side of the groove. Anti-slip pads 15 are provided on the opposite sides of the upper and lower guard plates 9. A wire frame 16 for fixing the direction of the connecting line 101 is provided on the top of the data acquisition device 1.

[0025] In the switch cabinet fault prevention handling operation, first, the card plate 13 around the conductor 3 right side along the guide rod 12 to the left, while the compression of the second spring 14, at this time the card plate 13 to remove the right side of the dynamic ring around the conductor 4 connecting plate 301 fixed limit, while removing the dynamic ring around the conductor 4 limit, at this time the dynamic ring around the conductor 4 along the left side of the fixed ring around the conductor 3 rotating open, at this time the cable in the switch cabinet into the fixed ring around the conductor 3, then the dynamic ring around the conductor 4 along the reverse rotation of the shaft, at this time the dynamic ring around the conductor 4 right side of the connecting plate 301 push card 13 inclined plane and left extrusion, while the second spring 14 compression, when the second spring 14 top through the dynamic ring around the conductor 4 right side of the connecting plate 301, the card plate 13 in the connecting plate 301 second spring 14 reset and at the same time through the dynamic ring around the conductor 4 limit to the connecting plate 301, so as to achieve the fixed ring around the conductor 3 and the dynamic ring around the conductor 4 between the quick fixed, thereby reducing the difficulty of installation, at this time the cable is located between the fixed ring around the conductor 3 and the dynamic ring around the conductor 4, at this time adjust the upper and lower two screw rod 6 along the fixed seat 5 screw type sliding, two screw rod 6 respectively driven by its end plate 8 moving towards each other, at the same time the plate 8 in the moving towards each other at the same time through the second slide rod 10 driven by the upper and lower two guard plate 9 moving towards each other, at this time the two guard plate 9 clamping the measured cable, at this time continue to rotate the screw rod 6, at this time the upper and lower two guard plate 9 has been clamped the measured cable, at this time the second slide rod 10 behind the guard plate 9 along the plate 8 sliding, at this time the first spring 11 compression and increase the pressure of the guard plate 9 to the cable, so as to enhance the fixed effect, at the same time can avoid the bracket of the plate 8 clamping and thus damage the cable, to achieve the protection effect of the cable, at this time through the fixed ring around the conductor 3 and the dynamic ring around the conductor 4 capture the high frequency current pulse generated when the local discharge and through the connecting line 101 transmission to the data acquisition device 1, so as to detect whether the pulse is in the normal frequency range, so as to complete the detection operation of the switch cabinet internal cable partial discharge.

[0026] The above embodiments are provided for those skilled in the art to implement or use the present application, those skilled in the art can make various modifications or changes to the above embodiments without departing from the practical idea of the present application, therefore the protection scope of the present application is not limited by the above embodiments, but should be the maximum range of the innovative features mentioned in the claims.

Claims

1. A wireless transmission partial discharge detection device, comprising a data collector (1), a connecting line (101), a fixing frame (2), a fixed ring conductor (3), a connecting plate (301), a movable ring conductor (4), the top of the data collector (1) is provided with the fixing frame (2), the top of the fixing frame (2) is provided with the fixed ring conductor (3), the bottom of the fixed ring conductor (3) is connected with one end of the data collector (1) through the connecting line (101), the fixed ring conductor (3) is rotatably provided with the movable ring conductor (4) on one side, and the fixed ring conductor (3) and the movable ring conductor (4) are provided with the connecting plate (301) on the side away from the rotatable connection thereof. The pressing mechanism is arranged on the inner side of the fixed ring conductor (3) and the movable ring conductor (4).

2. A wireless transmission partial discharge detection apparatus as claimed in claim 1, wherein, The pressing mechanism comprises a fixing seat (5), a screw rod (6), a first sliding rod (7) and a pressing plate (8), the fixing seat (5) is symmetrically arranged on both sides of the fixed ring conductor (3) and the movable ring conductor (4), the screw rod (6) is threadedly arranged on the fixing seat (5) on one side of the fixed ring conductor (3) and the movable ring conductor, the first sliding rod (7) is slidingly arranged on the fixing seat (5) on the other side, and the end of the screw rod (6) and the first sliding rod (7) is connected with the pressing plate (8).

3. A wireless transmission partial discharge detection apparatus as claimed in claim 2, wherein, The pressing plate (8) is symmetrically provided with a second sliding rod (10), the end of the second sliding rod (10) is connected with a guard plate (9), and the second sliding rod (10) is wound with a first spring (11).

4. A wireless transmission partial discharge detection apparatus as claimed in claim 3, wherein, The fixing seat (5) on one side of the fixed ring conductor (3) is provided with a sliding groove, the sliding groove is symmetrically provided with a guide rod (12), the symmetric guide rods (12) are slidingly provided with a clamping plate (13), and the guide rod (12) is wound with a second spring (14).

5. A wireless transmission partial discharge detection apparatus as claimed in claim 4, wherein, The guard plate (9) is provided with a non-slip pad (15).

6. A wireless transmission partial discharge detection apparatus as claimed in claim 5, wherein, The data collector (1) is provided with a wire rack (16).

Images