Magnetic field loop antenna

Abstract

The utility model relates to the technical field of magnetic field sensors, in particular to a magnetic field loop antenna. Comprising an annular copper pipe, the annular copper pipe is formed by connecting two semicircular annular structures to form an upper connecting part and a lower connecting part, a shell sleeves one end of the lower connecting part of the annular copper pipe, a connector is arranged on the shell, one end opposite to the shell is the upper connecting part, the upper connecting part is connected through an insulating sleeve, and an enameled wire is wound in the annular copper pipe. The enameled wire and the annular copper pipe are concentrically arranged. The product provided by the utility model is used for collecting and processing electromagnetic environment parameters of key equipment and key areas, and carrying out real-time monitoring and long-term monitoring on the electromagnetic environment; the annular copper pipe is divided into two bilaterally symmetrical parts and is convenient to produce and mount; and the outer surfaces of the shell and the annular copper pipe are painted, so that the mould resistance, moisture resistance and salt mist resistance of the product are enhanced, the weather resistance of the surface is enhanced, and the magnetic field annular antenna is a preferable magnetic field annular antenna.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic field sensors, in particular to a magnetic field loop antenna. Background Art

[0002] In the power industry, we need to collect electromagnetic environment parameters in key equipment or key areas to understand the electromagnetic interference situation in the key equipment or key areas. The electromagnetic environment parameters include electric field strength, magnetic field strength, DC grid conduction emission, AC grid conduction emission and spike pulse data. Magnetic field strength detection generally uses magnetic field sensors. Therefore, a magnetic field antenna is needed to collect electromagnetic environment parameters in key equipment or key areas. Utility Model Content

[0003] Problem to be solved: Provide a magnetic field antenna that can collect electromagnetic environment parameters in key equipment or key areas.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a magnetic field ring antenna, comprising a ring-shaped copper tube, wherein the ring-shaped copper tube is formed by connecting two semicircular ring structures to form an upper connection and a lower connection, an outer shell is sleeved on one end of the lower connection of the ring-shaped copper tube, a connector is provided on the outer shell, and the end opposite to the outer shell is the upper connection, and the upper connection is connected through an insulating sleeve, and an enameled wire is surrounded by the inside of the ring-shaped copper tube, and the enameled wire is arranged cocentrically with the ring-shaped copper tube.

[0005] Preferably, the outer shell is in the shape of a cuboid, and a concave mounting frame is provided on the side of the outer shell facing away from the connector.

[0006] Preferably, the connector is located at the center of the housing, and a line connecting the center of the connector and the center of the insulating sleeve is the diameter of the annular copper tube.

[0007] Preferably, the shell is made of red copper, and the outer surfaces of the shell and the annular copper tube are gray acrylic polyurethane enamel layers.

[0008] Preferably, the DC resistance of the enameled wire satisfies 5Ω to 10Ω.

[0009] Compared with the prior art, the utility model provides a magnetic field ring antenna, which has the following beneficial effects: the utility model product is used for collecting and processing electromagnetic environment parameters (including electric field strength, magnetic field strength, DC power grid conduction emission, AC power grid conduction emission and spike pulses) of key equipment and key areas, and for real-time and long-term monitoring of the electromagnetic environment; the ring-shaped copper tube is divided into two symmetrical parts, which is convenient for production and installation; the outer surface of the shell and the ring-shaped copper tube is painted to enhance the product's mildew resistance, moisture resistance, and salt spray resistance, and enhance the surface's weather resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1It is a structural schematic diagram of the utility model.

[0011] Figure 2 It is a three-dimensional schematic diagram of the utility model.

[0012] Figure 3 This is the production flow chart of the utility model product.

[0013] Explanation of the accompanying drawings: 1. Shell; 2. Ring-shaped copper tube; 3. Insulation sleeve; 4. Connector; 5. Enameled wire. DETAILED DESCRIPTION

[0014] The technical scheme in the embodiment of the present invention will be described below in conjunction with the accompanying drawings in the embodiment of the present invention:

[0015] As shown in the figure, a magnetic field loop antenna includes a loop copper tube 2, which is divided into two semicircular ring structures that are symmetrical on both sides. The two semicircular ring structures are put together to form an upper connection and a lower connection. A shell 1 is sleeved on one end of the lower connection of the loop copper tube 2. The outer shape of the shell 1 is a rectangular parallelepiped. A connector 4 is provided on the shell 1. The connector 4 is located at the center of the shell 1. An insulating sleeve 3 is provided at one end of the upper connection of the loop copper tube 2. The center of the connector 4 and the center of the insulating sleeve 3 are connected to the diameter of the loop copper tube 2. The inside of the loop copper tube 2 is Surrounded by an enameled wire 5, the enameled wire 5 is passed through the outer shell 1 and wound into the inside of the annular copper tube 2. The enameled wire 5 serves as the internal guide part of the product. The DC resistance value of the enameled wire 5 meets 5Ω~10Ω. The enameled wire 5 is made of QZ-2 high-strength polyester enameled round copper wire. The copper has small contact resistance, strong weldability, high reliability, etc. After the enameled wire 5 and the annular copper tube 2 are installed in place, they are concentric. A concave mounting frame is provided on the side of the outer shell 1 facing away from the connector 4, which is used to fix the antenna of the utility model on other equipment.

[0016] The shell 1 is made of red copper, which can improve the corrosion resistance of the product and reduce the weight of the product. After the product is assembled, the outer surface of the shell 1 and the annular copper tube 2 is sprayed with paint to enhance the product's anti-mildew, anti-humidity, and anti-salt spray properties, and enhance the "three-proof" performance of the surface. The spray paint is a gray acrylic polyurethane enamel layer. After the spray paint is completed, the appearance of the utility model is as follows Figure 2 As shown, the annular copper tube 2 and the housing 1 are covered with a layer of grey acrylic polyurethane enamel.

[0017] like Figure 2As shown, it is a production flow chart of the utility model product. The length of the enameled wire 5 is determined according to the required resistance value of the enameled wire 5. The enameled wire 5 is cut into broken wires. The housing 1 and the lower connection of the annular copper tube 2 are welded together. The upper connection of the annular copper tube 2 is connected through an insulating sleeve 3. The broken wire is passed through the annular copper tube 2. After the winding is completed, the winding inspection is carried out. If it is unqualified, it is handled according to the unqualified product control procedure. After the winding inspection is qualified, the connector 4 is installed in the center of the housing 1, and the broken wire joint is welded to the connector 4; then a comparison test is carried out. If the comparison test is unqualified, it is handled according to the unqualified product control procedure. After the comparison and detection are qualified, the next step is potting. The components are fixed by the process method of potting polyurethane to fix the position of the components and improve the electrical strength of the product. The potting material needs to be cured at high temperature, and polyurethane needs to be cured at 75°C for 2 hours; after potting, the cover is sprayed with paint, and the paint is a gray acrylic polyurethane magnetic paint layer; after painting, the equipment is cleaned and marked, and enters the final inspection. If the final inspection fails, it will be handled according to the defective product control procedure. After the final inspection is passed, ensure that the outer surface of the product is clean and free of dirt, the markings are clear and accurate, and there are no obvious cracks, bubbles and paint peeling on the surface; if there is no obvious damage to the lead-out end, it will be packaged and put into storage.

[0018] This utility model product has been through winding inspection, comparison inspection, and final inspection to ensure that the product's electrical performance characteristics and other requirements meet the requirements of the technical agreement. The internal potting of the product adopts polyurethane high-temperature curing process to achieve high electrical strength. This utility model product can perform real-time and long-term monitoring of the electromagnetic environment, and is suitable for the collection of electromagnetic environment parameters of key equipment and key areas.

[0019] The above embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Claims

1. A magnetic field loop antenna, characterized in that: The invention comprises an annular copper tube (2), wherein the annular copper tube (2) is formed by connecting two semicircular ring structures to form an upper connection and a lower connection, an outer shell (1) is sleeved on one end of the lower connection of the annular copper tube (2), a connector (4) is provided on the outer shell (1), the end opposite to the outer shell (1) is the upper connection, and the upper connection is connected via an insulating sleeve (3), and an enameled wire (5) is surrounded inside the annular copper tube (2), and the enameled wire (5) is arranged cocentrically with the annular copper tube (2).

2. A magnetic field loop antenna as claimed in claim 1, characterized in that: The outer shell (1) is in the shape of a rectangular parallelepiped, and a concave mounting frame is provided on the side of the outer shell (1) facing away from the connector (4).

3. A magnetic field loop antenna as claimed in claim 2, characterized in that: The connector (4) is located at the center of the housing (1), and a line connecting the center of the connector (4) and the center of the insulating sleeve (3) is the diameter of the annular copper tube (2).

4. A magnetic field loop antenna as claimed in claim 3, characterized in that: The shell (1) is made of red copper, and the outer surfaces of the shell (1) and the annular copper tube (2) are gray acrylic polyurethane enamel layers.

5. A magnetic field loop antenna as claimed in claim 4, characterized in that: The DC resistance value of the enameled wire (5) satisfies 5Ω to 10Ω.

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