10kV line grounding fault positioning detection sensor

Abstract

The utility model relates to a 10kV line grounding fault positioning detection sensor, which comprises a sensor shell and a barb shell, the barb shell is installed at the top of the sensor shell and is communicated with the interior of the sensor shell, a PCB is installed in the sensor shell, the two inner side edges of the barb shell are arranged to be of an inverted V-shaped structure, and the two inner side edges of the barb shell are arranged to be of an inverted V-shaped structure. The PCB is provided with an inverted V-shaped structure, two ends of the inverted hook shell are internally provided with two induction magnetic cores, the induction magnetic cores and the inner side edge of the inverted hook shell are arranged in parallel, the two induction magnetic cores are connected to the PCB through inner lines, and the inner side edge of the inverted hook shell is further provided with a rolling assembly. Lines with different thicknesses can be tightly attached to the inner side edge, so that the lines are always located in the center of the two induction magnetic cores, the distances between the induction magnetic cores and the lines are always the same, and when the lines with different thicknesses are detected, parameters can be uniformly set without revision.

Description

Technical Field

[0001] This application relates to the technical field of line fault detection, and in particular to a 10kV line grounding fault location detection sensor. Background Technique

[0002] A current sensor can sense the information of the measured current and transform the detected information into an electrical signal or other required form of information that meets certain standard requirements according to certain rules, so as to meet the requirements of information transmission, processing, storage, display, recording, and control. Electronic current transformers include Hall current sensors, Rogowski current sensors, and variable-frequency power sensors dedicated to variable-frequency power measurement. A Hall device is a magnetoelectric conversion device made of semiconductor materials. If a control current is applied to the input end, when a magnetic field passes through the magnetic sensing surface of the device, a Hall potential will appear at the output end.

[0003] Referring to the Chinese patent case with the authorized announcement number CN219695396U, it discloses a hanging sensor for 10kV line grounding fault signal sensing and positioning, including a housing, a current sensor core arranged in the housing, and a PCB board connected to the current sensor core. The current sensor core includes a first core arranged near the 10kV line in the first vertical part and a second core arranged near the 10kV line in the second vertical part. Both the first core and the second core are connected to the PCB board through a first line. Then, it can be hung at the 10Kv line to sense the current. It is convenient and fast to disassemble and install, and the designed weight of the first core and the second core is greatly reduced. However, in this solution, the bending part is used to cooperate with hanging on the line. The first core and the second core arranged in the first vertical part and the second vertical part cooperate to detect the current information in the line. When lines of different thicknesses slide in the bending part with a large arc, the position will change continuously, resulting in the continuous change of the distance between the line and the first core and the second core, and thus the detected current information will also change continuously, and the detection result is not accurate enough.

[0004] Therefore, those skilled in the art provide a 10kV line grounding fault location detection sensor to solve the problems raised in the above background technique. Utility Model Content

[0005] To solve the problems raised in the above background technique, this application provides a 10kV line grounding fault location detection sensor.

[0006] A 10kV line grounding fault location detection sensor provided by this application adopts the following technical solutions:

[0007] A 10kV line ground fault location detection sensor comprises a sensor housing and a barb housing, wherein the barb housing is mounted on the top of the sensor housing and is connected to the inside of the sensor housing, a PCB board is mounted in the sensor housing, two inner sides of the barb housing are arranged in an inverted V-shaped structure, two induction cores are arranged in both ends of the barb housing, the induction cores are arranged parallel to the inner sides of the barb housing, the two induction cores are connected to the PCB board through an inner line, and a rolling component is mounted on the inner side of the barb housing.

[0008] Preferably, the rolling assembly includes two groups of symmetrically arranged rollers, a plurality of hole-digging grooves are provided on the inner side of the barb shell, the rollers are rotatably installed in the hole-digging grooves, and the edges of the rollers exceed the inner side of the barb shell.

[0009] Preferably, a shaking assembly is also provided inside the barb shell near the sensor shell, and the shaking assembly includes a trigger slider movably installed in the barb shell, and the bottom ends of several rollers on the same side are connected to the trigger slider through a connecting rod, and a trigger motor is also installed in the barb shell, and a cam is installed on the output shaft of the trigger motor, and the tip of the cam cooperates to push the trigger slider to slide.

[0010] Preferably, a return spring is also installed on the end of the trigger slider extending into the barb housing, and the other end of the return spring is installed on the inner wall of the barb housing.

[0011] Preferably, a bolt sleeve is provided on the bottom of the sensor housing, and an insertion rod is threadedly installed in the bolt sleeve. A plug connector is also provided on the side of the sensor housing, a conductive wire is provided between the plug connector and the insertion rod, and the plug connector is electrically connected to the PCB board. Screws for mounting the PCB board are also provided in the sensor housing.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] 1. In the present application, the inner side of the hook shell is set in an inverted V-shaped structure. When hanging on the inverted line, lines of different thicknesses can be close to the inner side, so that the line is always kept in the middle of the two induction cores, and the distance between the induction core and the line is always the same. When detecting lines of different thicknesses, the parameters can be set uniformly without revision.

[0014] 2. The present application also provides a rolling assembly on the barb shell, which is composed of two groups of symmetrically arranged rollers. The rollers are parallel to the inner sides of the barb shell, and can also keep the line in the center of the two induction cores. The rollers can roll on the line, thereby keeping the barb shell able to slide along the line, which can prevent the line from being stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a schematic diagram of the external structure of this application;

[0016] Figure 2 It is a schematic diagram of the overall sectional structure of this application;

[0017] Figure 3 It is a schematic diagram of the internal structure of this application;

[0018] Figure 4 It is a schematic diagram of the structure of the jitter component of this application.

[0019] Description of reference numerals: 1, sensor housing; 11, PCB board; 12, screw; 13, bolt sleeve; 14, insertion rod; 15, connector; 16, conductive wire; 2, barb housing; 21, induction magnetic core; 22, inner wire; 23, roller; 24, trigger slider; 25, connecting rod; 26, trigger motor; 27, cam; 28, return spring. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Embodiment 1

[0022] As Figures 1-4 shown, this application discloses a 10kV line grounding fault location detection sensor, including a sensor housing 1 and a barb housing 2. The barb housing 2 is installed on the top of the sensor housing 1 and the barb housing 2 is in communication with the inside of the sensor housing 1. A PCB board 11 is installed in the sensor housing 1. The two inner sides of the barb housing 2 are arranged in an inverted V-shaped structure. Two induction magnetic cores 21 are further arranged inside the two ends of the barb housing 2. The induction magnetic cores 21 are arranged parallel to the inner sides of the barb housing 2. Both induction magnetic cores 21 are connected to the PCB board 11 through inner wires 22. A rolling component is further installed on the inner side of the barb housing 2. A bolt sleeve 13 is further arranged at the bottom of the sensor housing 1. An insertion rod 14 is threadedly installed inside the bolt sleeve 13. A connector 15 is arranged on the side of the sensor housing 1. A conductive wire 16 is arranged between the connector 15 and the insertion rod 14, and the connector 15 is electrically connected to the PCB board 11. Screws 12 for cooperatively installing the PCB board 11 are further arranged in the sensor housing 1;

[0023] Specifically, the two inner side supports of the barb shell 2 are arranged in an inverted V-shaped structure. When detecting lines of different thicknesses, the two inner side supports of the barb shell 2 will always be in close contact with the lines to ensure that the lines are in the middle of the two inductive cores 21. Even if the barb shell 2 is pushed to slide on the line, the center position of the line can be stably maintained. In addition, the inductive core 21 is arranged parallel to the inner side of the barb shell 2, that is, as long as the line contacts the inner side of the barb shell 2, the distance between the line and the inductive core 21 can be guaranteed to be the same regardless of the height of the contact position. When detecting lines of different thicknesses, the parameters can be uniformly set without revision.

[0024] like Figure 2 , Figure 3 As shown, the rolling assembly includes two groups of symmetrically arranged rollers 23, and a plurality of hole grooves are provided on the inner side of the barb shell 2. The rollers 23 are rotatably installed in the hole grooves, and the edges of the rollers 23 exceed the inner side of the barb shell 2. Furthermore, in order to prevent unnecessary wear when the barb shell 2 slides on the line during the detection process, a plurality of rollers 23 are also installed on the inner side of the barb shell 2. When suspended, the rollers 23 will contact the line. When the barb shell 2 slides, the rollers 23 will roll on the line wheel, thereby reducing the wear on the line and being more durable.

[0025] like Figure 3 , Figure 4 As shown, a shaking assembly is further arranged inside the barb housing 2 near the sensor housing 1, and the shaking assembly includes a trigger slider 24 movably mounted inside the barb housing 1, and the bottom ends of a plurality of rollers 23 on the same side are connected to the trigger slider 24 through a connecting rod 25, and a trigger motor 26 is also installed inside the barb housing 2, and a cam 27 is installed on the output shaft of the trigger motor 26, and the tip of the cam 27 cooperates to push the trigger slider 24 to slide, and a reset spring 28 is also installed on the end of the trigger slider 24 extending into the barb housing 2, and the other end of the reset spring 28 is installed on the inner wall of the barb housing 2;

[0026] Furthermore, in order to prevent the line from being stuck between the two groups of rollers 23 during the detection process, the trigger motor 26 can be started to rotate the cam 27 during the detection process. When the cam 27 rotates, it can push the trigger slider 24 to slide, and the trigger slider 24 can be pushed back and forth by the cooperation of the reset spring 28. With the cooperation of the connecting rod 25, multiple rollers 23 on the same side can be pushed to swing continuously, thereby changing the distance between the two groups of rollers 23 and facilitating separation from the line.

[0027] All the standard parts used in the utility model can be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt the conventional means such as bolts, rivets, and welding, which are mature in the prior art. The machinery, parts, and equipment all adopt the conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here.

[0028] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0029] The implementation principle of a 10kV line grounding fault location detection sensor in an embodiment of this application is as follows:

[0030] During use, screw the insertion rod 14 into the bolt sleeve 13, and insert the conducting wire 16 and the insertion joint 15 into the sensor housing 1, keeping the insertion joint 15 electrically connected to the PCB board 11. The auxiliary button on the insertion rod 14 can be used for cooperation. When detecting, hang the inverted V-shaped position of the barb housing 2 on the line. When there is current passing through the line, the two induction magnetic cores 21 can sense the Hall potential, and thus can output a potential signal. The fault problem of the line can be judged according to the potential signal.

[0031] By setting the two inner sides of the barb housing 2 to support an inverted V-shaped structure, when detecting lines of different thicknesses, the two inner sides of the barb housing 2 will always be in close contact with the line, ensuring that the line is in the middle position between the two induction magnetic cores 21. Even when pushing the barb housing 2 to slide on the line, the line can be stably maintained in the middle position. In addition, the induction magnetic cores 21 are arranged parallel to the inner sides of the barb housing 2, that is, as long as the line contacts the inner sides of the barb housing 2, regardless of the height of the contact position, the distance between the line and the induction magnetic cores 21 can be guaranteed to be the same. When detecting lines of different thicknesses, the parameters can be uniformly set without revision.

[0032] In order to prevent unnecessary wear when the barb housing 2 slides on the line during the detection process, a number of rollers 23 are also installed on the inner sides of the barb housing 2. When hanging, the rollers 23 will contact the line. When the barb housing 2 slides, the rollers 23 will roll on the wire wheels, thereby reducing the wear on the line and being more durable. In addition, the trigger motor 26 can be started to rotate the cam 27 during the detection process. When the cam 27 rotates, it can push the trigger slider 24 to slide, and with the cooperation of the return spring 28, the trigger slider 24 can be pushed to swing back and forth. With the cooperation of the connecting rod 25, a plurality of rollers 23 on the same side can be pushed to continuously swing, changing the distance between the two groups of rollers 23 to prevent the line from being stuck.

[0033] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A 10kV line grounding fault location detection sensor, comprising a sensor housing (1) and a barb housing (2). The barb housing (2) is installed on the top of the sensor housing (1) and the barb housing (2) is in internal communication with the sensor housing (1). A PCB board (11) is installed in the sensor housing (1), characterized in that, The two inner sides of the barb shell (2) are arranged in an inverted V-shaped structure. Two induction cores (21) are arranged in the two ends of the barb shell (2). The induction cores (21) are arranged parallel to the inner sides of the barb shell (2). The two induction cores (21) are connected to the PCB board (11) through an inner line (22). A rolling assembly is also installed on the inner side of the barb shell (2).

2. The 10 kV line grounding fault location detection sensor according to claim 1, characterized in that: The rolling assembly comprises two groups of symmetrically arranged rollers (23), a plurality of hole-digging grooves are arranged on the inner side of the barb shell (2), the rollers (23) are rotatably installed in the hole-digging grooves, and the edges of the rollers (23) exceed the inner side of the barb shell (2).

3. A 10kV line grounding fault location detection sensor according to claim 1, characterized in that: A shaking assembly is also arranged inside the barb housing (2) near the sensor housing (1), and the shaking assembly includes a triggering slider (24) movably mounted inside the barb housing (2), and the bottom ends of a plurality of rollers (23) on the same side are connected to the triggering slider (24) through a connecting rod (25), and a triggering motor (26) is also installed inside the barb housing (2), and a cam (27) is installed on the output shaft of the triggering motor (26), and the tip of the cam (27) cooperates to push the triggering slider (24) to slide.

4. The 10 kV line grounding fault location detection sensor according to claim 3, characterized in that: A return spring (28) is also installed on the end of the trigger slider (24) extending into the barb housing (2), and the other end of the return spring (28) is installed on the inner wall of the barb housing (2).

5. A 10 kV line grounding fault location detection sensor according to claim 1, characterized in that: A bolt sleeve (13) is also provided on the bottom of the sensor housing (1), and an insertion rod (14) is also threadedly installed in the bolt sleeve (13). A plug connector (15) is also provided on the side of the sensor housing (1), and a conductive wire (16) is provided between the plug connector (15) and the insertion rod (14), and the plug connector (15) is electrically connected to the PCB board (11). The sensor housing (1) is also provided with a screw (12) for mounting the PCB board (11).

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