A power carrier radiation detection ring assembly

Abstract

A power carrier radiation detection ring assembly of the present invention comprises a detection ring and a winding, wherein the detection ring is formed by hingedly connecting a first half ring and a second half ring, the winding is wound on the detection ring, the winding is a twisted pair, formed by winding a first conductor and a second conductor around each other, the twisted pair is divided into a first conductor and a second conductor by a branching module at the ends of the first half ring and the second half ring and enters from a wire entry hole and extends from a wire exit hole respectively, the two ends of the first conductor are connected to an input end, the two ends of the second conductor are connected to a load, the load is used to filter out interference waves from the outside, and the detection ring is directly sleeved on the power line for radiation detection when working. Due to the large contact area and the presence of a load to filter interference waves, the effect of radiation detection is much higher than that of a traditional power carrier detection antenna.

Description

Technical Field

[0001] The present invention relates to the technical field of power carrier radiation detection, and in particular to a power carrier radiation detection ring component. Background Art

[0002] Power carrier is a unique method in the power system. The realization of power carrier is a technology that uses existing power lines to transmit analog or digital signals at high speed through carriers. When the power carrier is connected to the terminal equipment, an electromagnetic signal will be generated and transmitted through the power line, and this electromagnetic signal will radiate into space through the power line. By detecting this radiation signal, the connectivity and physical distribution of the power line can be evaluated. However, the electromagnetic radiation generated by the power carrier when passing through the wire is relatively weak, and coupled with the interference of external electromagnetic signals, the effect of directly detecting the radiation generated by the power carrier is often unsatisfactory. At the same time, it is also difficult to directly connect the running power line to the detection device, resulting in a large error in the detection of the radiation of the power carrier, and it is not easy to accurately evaluate the radiation of the power carrier. Summary of the invention

[0003] The purpose of the present invention is to solve the defects in the detection of power line carrier radiation. In view of the problems of weak electromagnetic radiation, strong interference from external electromagnetic signals, poor detection effect and low efficiency, and difficulty in directly connecting the detection device to the running power line, a power carrier radiation detection ring assembly is designed.

[0004] The present invention is achieved through the following technical solutions:

[0005] A power carrier radiation detection ring assembly comprises a detection ring and a winding, wherein the detection ring can sense the electromagnetic wave frequency band radiated by the power carrier into space in a working state; the detection ring comprises a first half ring and a second half ring, the detection ring is made of a high magnetic permeability material (such as ferrite), one end of the first half ring and the second half ring are hinged, and the two half rings can rotate relative to each other to form a closed detection ring or an open detection ring; the winding is wound on the detection ring.

[0006] Furthermore, the winding includes a first conductive wire and a second conductive wire, and the first conductive wire and the second conductive wire are wound around each other to form a twisted pair.

[0007] Furthermore, the first half ring and the second half ring each include an outer shell and an inner core, and the inner core is fixed to the inner wall of the outer shell.

[0008] Furthermore, a hollow groove is left in the thickness direction at the hinge of the first half ring and the second half ring, and the two hollow grooves are connected when the first half ring and the second half ring are hinged, and a hanging column is provided at one end of the hollow groove of the first half ring and the second half ring away from the hinge point.

[0009] Furthermore, a wedge-shaped limit block is provided on the two outer end surfaces of the hinge of the first half ring, so as to limit the rotation angle of the second half ring relative to the first half ring.

[0010] Furthermore, a tension spring is arranged in the empty slot, and each end of the tension spring has a hook, and the hook is hung on the hanging column.

[0011] Furthermore, one end of the first half ring and the second half ring in the arc direction away from the hinge point is respectively provided with a branching module for separating the first conductor and the second conductor of the twisted pair.

[0012] Furthermore, the branching module is a square body, which is installed at the ends of the first half ring and the second half ring. The branching module is provided with two wire entry holes on a side perpendicular to the detection ring, and the branching module is provided with two wire exit holes on a side parallel to the detection ring; the first wire and the second wire of the twisted pair cable enter from the wire entry hole respectively and extend from the wire exit hole.

[0013] Furthermore, the first wire extending from the outlet hole of the first half-ring branching module and the first wire extending from the outlet hole of the second half-ring branching module are respectively connected to the positive and negative poles of the input end of the power carrier radiation detection ring assembly.

[0014] Furthermore, a second wire extending from the outlet hole of the first half-ring distribution module and a second wire extending from the outlet hole of the second half-ring distribution module are respectively connected to the load end, and the load may be resistive, capacitive or inductive. When a resistive load is connected, its characteristic impedance is between 5 and 500Ω.

[0015] Furthermore, a wider operating frequency can be achieved by changing the number of twisted-pair coil turns, wire diameter, and detection ring material and shape.

[0016] The beneficial effects of the present invention are embodied in:

[0017] By setting up a detection ring to replace the existing magnetic rod detection antenna, the first half ring and the second half ring of the detection ring are hinged, and the detection ring can be directly buckled on the power line to be detected. The inner core of the detection ring is in direct contact with the power line and the contact area is wide. Compared with the prior art of placing the magnetic rod detection antenna next to the power line to receive the radiation signal of the power carrier, the receiving effect is better. The winding wire wound on the detection ring is in the form of a twisted pair, which can eliminate and filter interference radiation. The connected load can filter and eliminate a large amount of interference radiation. Compared with the previous single-wire winding, the detection performance is greatly improved.

[0018] The bandwidth range achieved by the present application is 15KHz to 30MHz. The bandwidth range of the detection loop can fully meet the detection of power carrier radiation signals, and a wider operating frequency can be achieved by changing the number of twisted pair coils, wire diameters, and detection loop materials and shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall structural diagram of a power carrier radiation detection ring assembly according to an embodiment of the present invention;

[0020] Figure 2 It is a schematic structural diagram of a detection ring of a power carrier radiation detection ring assembly according to an embodiment of the present invention when the detection ring is closed;

[0021] Figure 3 It is a schematic structural diagram of a detection ring of a power carrier radiation detection ring assembly according to an embodiment of the present invention when the detection ring is open;

[0022] Figure 4 It is a cross-sectional view of the detection ring of the power carrier radiation detection ring assembly of the embodiment of the present invention when the detection ring is opened;

[0023] Figure 5 It is a cross-sectional view of the detection ring of the power carrier radiation detection ring assembly according to an embodiment of the present invention when the detection ring is closed.

[0024] The numbers in the accompanying drawings are as follows: 1, first half ring; 2, second half ring; 3, winding; 4, branching module; 5, tension spring; 6, hanging column; 11-housing; 12, wedge-shaped limit block; 21, inner core; 31, first conductor; 32, second conductor; 41, outlet hole; 42, inlet hole. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings. It is understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0026] like Figure 1-5 As shown, the present invention provides the following embodiments:

[0027] As one of the optional embodiments of the present invention, a power carrier radiation detection ring assembly of this embodiment includes a detection ring and a winding 3. The detection ring can sense the electromagnetic wave frequency band of the power carrier radiated to the space in the working state. The detection ring includes a first half ring 1 and a second half ring 2. One end of the first half ring 1 and the second half ring 2 is hinged, and the two half rings can rotate relative to each other to form a closed detection ring or an open detection ring. The winding 3 is wound on the detection ring; the first half ring 1 and the second half ring 2 are both composed of an outer shell 11 and an inner core 21, and the inner core 21 is a magnetic core, and the inner core 21 is fixed to the inner wall of the outer shell 11; the inner core of the detection ring can be made of a high magnetic permeability material (such as ferrite). In the scheme of this embodiment, a detection ring is set to replace the existing magnetic rod detection antenna. The first half ring and the second half ring of the detection ring are hinged, and the detection ring can be directly buckled on the power line to be detected. The inner core of the detection ring is in direct contact with the power line and has a wide contact area. Compared with the prior art of placing the magnetic rod detection antenna next to the power line to receive the radiation signal of the power carrier, the receiving effect is better.

[0028] As a preferred embodiment, a hollow groove is left in the thickness direction at the hinge of the first half ring 1 and the second half ring 2. The two hollow grooves are connected when the first half ring 1 and the second half ring 2 are hinged. A hanging column 6 is provided at one end of the hollow groove of the first half ring 1 and the second half ring 2 away from the hinge point. A wedge-shaped limit block is also provided on the two outer end surfaces at the hinge of the first half ring, which is used to limit the rotation angle of the second half ring relative to the first half ring; a tension spring 5 is provided in the hollow groove, and a hook is provided at each of the two ends of the tension spring 5, and the hook is hung on the hanging column 6. It can be understood that when the first half ring and the second half ring are rotated to the closed state of the detection ring, the tension spring is stretched and in a stretched state, and the elastic force can ensure that the closed parts of the two half rings are tightly closed; when the first half ring and the second half ring are rotated to the open state of the detection ring, when they are rotated to the wedge-shaped stopper and can no longer rotate, the tension spring is also stretched and in a stretched state, ensuring that the two half rings are separated from each other and will not rotate. When external force is applied to overcome the elastic force of the tension spring, the two half rings can rotate relative to each other. Here, the opening and closing of the first half ring and the second half ring are controlled by setting a tension spring, which is simple, ingenious and practical.

[0029] As a preferred embodiment, the winding 3 is wound into a twisted pair by a first conductor 31 and a second conductor 32; a branching module 4 is respectively provided at one end of the first half ring 1 and the second half ring 2 in the arc direction away from the hinge point, for separating the first conductor 31 and the second conductor 32 of the twisted pair, and the branching module 4 is a square body, installed at the ends of the first half ring 1 and the second half ring 2, and the branching module is provided with two inlet holes 42 on one side perpendicular to the detection ring, and two outlet holes 42 on one side parallel to the detection ring. 1; the first wire and the second wire of the twisted pair enter from the wire inlet hole respectively and extend from the wire outlet hole; the first wire extending from the wire outlet hole of the first half-ring branching module and the first wire extending from the wire outlet hole of the second half-ring branching module are respectively connected to the positive and negative poles of the input end of the power carrier radiation detection ring component; the second wire extending from the wire outlet hole of the first half-ring branching module and the second wire extending from the wire outlet hole of the second half-ring branching module are respectively connected to the load end, and the load can be resistive, capacitive or inductive. When a resistive load is connected, its characteristic impedance is between 5 and 500Ω. In the present embodiment, the winding wire wound on the detection ring is in the form of a twisted pair wire, which can eliminate and filter interference radiation. The filtering method is to separate the first conductor and the second conductor of the twisted pair wire at the ends of both sides of the twisted pair wire with a branching module, wherein the two ends of the first conductor respectively extend from the outlet holes of the first half ring and the second half ring branching module and are connected to the load, and the connection to the load can filter and eliminate a large amount of interference radiation, and the two ends of the second conductor of the twisted pair wire respectively extend from the other outlet holes of the first half ring and the second half ring and are connected to the input end; compared with the previous single-wire winding, the detection performance is greatly improved.

[0030] It should be noted that the selectable detection loop bandwidth range is 15KHz to 30MHz, which can fully meet the detection of power carrier radiation signals. In addition, a wider operating frequency can be achieved by changing the number of twisted pair coils, wire diameters, and detection loop materials and shapes.

[0031] When it is necessary to use the power carrier radiation detection ring assembly of the present invention to detect radiation on the power line, the hinged first half ring 1 and the second half ring 2 are opened to an open state and are placed on the power line and then rotated until the detection ring is in a closed state. The winding 3 wound on the detection ring is divided into a first wire 31 and a second wire 32 by the branching module 4 at the two ends of the first half ring 1 and the second half ring 2 away from the hinge. The first wire 31 and the second wire 32 enter from the wire entry hole 42 of the branching module and extend from the wire exit hole 41. The two ends of the extended first wire 1 are respectively connected to the positive and negative poles of the input end; the two ends of the extended second wire 2 are respectively connected to the two ends of the load, and the load can be resistive, capacitive or inductive. It is used to filter out interference waves from the outside. After the input end is connected, the detection ring starts to work. Since the detection ring and the power line are fully in contact, and the load connected to the second wire 2 can help filter out external interference waves, the radiation detected by the detection ring at this time is all radiation generated by the power line, which ensures the efficiency of the detection ring in detecting radiation. When it is not needed, just disconnect the input end and the load end, open and remove the detection ring.

[0032] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "center", "top", "bottom", "top", "bottom", "inside", "outside", "inner side", "outer side" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Among them, "inside" refers to an internal or enclosed area or space. "Periphery" refers to the area surrounding a specific component or a specific area.

[0033] In the description of the embodiments of the present invention, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", "third", and "fourth" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0034] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "assemble" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the description of the embodiments of the present invention, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0036] In the description of the embodiments of the present invention, it is to be understood that "-" and "~" represent the range between two values, and the range includes the endpoints. For example: "AB" represents a range greater than or equal to A and less than or equal to B. "A~B" represents a range greater than or equal to A and less than or equal to B.

[0037] In the description of the embodiments of the present invention, the term "and / or" herein is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " herein generally indicates that the associated objects before and after are in an "or" relationship.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A power carrier radiation detection ring assembly, comprising a detection ring and a winding, characterized in that: The detection ring can sense the electromagnetic wave frequency band radiated into space by the power carrier in the working state; The detection ring comprises a first half ring and a second half ring, one end of the first half ring and the second half ring are hinged, and the two half rings can rotate relative to each other to form a closed detection ring or an open detection ring; the winding wire is wound on the detection ring; The winding wire comprises a first wire and a second wire; the first wire and the second wire are wound around each other to form a twisted pair; The first half ring and the second half ring are respectively provided with a wire splitting module at one end away from the hinge point in the arc direction, for separating the first wire and the second wire of the twisted pair; The line splitting module is a square body, installed at the ends of the first half ring and the second half ring, and the line splitting module is provided with two line entry holes on a side perpendicular to the detection ring, and two line exit holes on a side parallel to the detection ring; the first wire and the second wire of the twisted pair enter from the line entry holes and extend from the line exit holes respectively; The first wire extending from the outlet hole of the first half-ring branching module and the first wire extending from the outlet hole of the second half-ring branching module are respectively connected to the positive and negative electrodes of the input end of the power carrier radiation detection ring assembly; The second wire extending from the outlet hole of the first half-ring distribution module and the second wire extending from the outlet hole of the second half-ring distribution module are respectively connected to the load end. The load can be resistive, capacitive or inductive. When connected to a resistive load, its characteristic impedance is between 5 and 500Ω.

2. The power carrier radiation detection ring assembly according to claim 1, characterized in that: The first half ring and the second half ring both include an outer shell and an inner core, wherein the inner core is a magnetic core body, and the inner core is fixed to the inner wall of the outer shell.

3. The power carrier radiation detection ring assembly according to claim 1, characterized in that: A hollow groove is left in the thickness direction at the hinge of the first half ring and the second half ring. The two hollow grooves are connected when the first half ring and the second half ring are hinged. A hanging column is provided at one end of the hollow groove of the first half ring and the second half ring away from the hinge point; a wedge-shaped limit block is also provided on the two outer end surfaces at the hinge of the first half ring, which is used to limit the rotation angle of the second half ring relative to the first half ring.

4. The power carrier radiation detection ring assembly according to claim 3, characterized in that: A tension spring is arranged in the empty slot, and each end of the tension spring has a hook, and the hook is hung on the hanging column.

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