A method for winding a magnetic field measuring coil made of soft magnetic material
By simplifying the winding process of soft magnetic material coils with n-core wire rows, the problem of low winding efficiency of small-sized test ring and measurement coils is solved, achieving more efficient testing and reducing costs.
Patent Information
- Application Number
- CN202211165559.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-09-23
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2042-09-23
AI Technical Summary
The prior art is difficult to efficiently wind the excitation coil and the measurement coil of small-sized soft magnetic materials, resulting in low testing efficiency, high labor intensity and high cost.
Two n-core wire rows are used to form wire strips through plugs and sockets, which simplifies the winding process and only requires a single winding ring to complete the coil. It is fixed with tape or glue to improve winding efficiency and accuracy.
It greatly reduces the number of windings and labor intensity, improves testing efficiency, is suitable for test rings of more sizes, and reduces the types and costs of magnetic measuring tooling.
Smart Images
Figure CN115472422B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of magnetic measurement of magnetic conductive materials, and in particular to a method for winding a magnetic measurement coil of a soft magnetic material. Background Art
[0002] At present, for the magnetic measurement of soft magnetic materials such as rods and rings, single-strand wires or enameled wires are generally used to wind the excitation coil and the measuring coil on the soft magnetic material, and the excitation current is input into the excitation coil through the measuring instrument, and then the induced voltage signal is measured in the measuring coil. After signal processing, the hysteresis loop, magnetic permeability, coercive force and other parameters of the soft magnetic material are output. Since the ring-shaped magnetic conductive sample is easy to make, the requirements for the measuring instrument are low, and the measurement accuracy is high, the soft magnetic material that needs to be measured is often made into a ring sample (hereinafter referred to as a "test ring") for measurement.
[0003] For test rings of larger sizes, a toroidal winding machine can be used to wind the coils. However, for test rings with very small inner hole sizes, the existing toroidal winding machines on the market cannot wind them, and they can only be wound manually turn by turn. Generally, for small-sized test rings, the excitation coils are at least 50 turns, and the induction coils are about 20 turns. Manual winding is time-consuming and laborious, and it is easy to count wrongly if the number of turns is too many, which affects the test efficiency of the test ring. In addition, for the winding of single-piece and small-batch test ring magnetic coils, the use of toroidal winding machines also has the disadvantages of low equipment utilization and high cost. Summary of the invention
[0004] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a method for winding a magnetic measuring coil of a soft magnetic material, which can improve the testing efficiency of the soft magnetic material (test ring) and reduce labor intensity and testing costs.
[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: a method for winding a magnetic measuring coil of a soft magnetic material, characterized in that it comprises the following steps:
[0006] 1) Make two n-core wire rows: Cut n-1 wires of equal length, connect one end of the wire to an n-core plug, and the other end to an n-core socket, wherein each wire is connected to one core of the plug and socket respectively, and the wires between the plug and the socket form a wire belt as a whole; one of them is the excitation wire row, and the other is the measurement wire row;
[0007] 2) Make the soft magnetic material to be tested into a ring shape to form a test ring;
[0008] 3) Fix the plug of the exciting wire row, and after the socket passes through the test ring, drive the wire to wind outward and then pass through the test ring again, complete the winding once, repeat the winding until a times of winding are completed, at this time the total number of turns of the exciting coil on the test ring is a (n-1) turns; similarly, wind the measuring wire row on the test ring b times, at this time the total number of turns of the exciting coil on the test ring is b (n-1) turns;
[0009] 4) Arrange the excitation wire array and the measuring wire array so that the conductor tapes of the excitation wire array and the measuring wire array are tightly attached to the test ring, and the turns of the conductor tapes of the excitation wire array and the measuring wire array are evenly distributed on the test ring, and then fix the conductor tapes of the excitation wire array and the measuring wire array to the test ring;
[0010] 5) Connect the plug and socket cores accordingly, connect the wires in series, and then lead out the two free cores on the socket and plug with wires;
[0011] 6) Finally, connect the lead wires of the excitation line array and the lead wires of the measuring line array to the corresponding ports of the soft magnetic measuring instrument respectively, and then the magnetic measurement can be carried out.
[0012] Furthermore, the conductor strips of the exciting wire array and the measuring wire array are distributed on both sides of the test loop.
[0013] Furthermore, the conductor strips of the excitation line array and the measurement line array are cross-distributed.
[0014] Furthermore, the conductor tape of the measuring line array is wound on the conductor tape of the exciting line array.
[0015] Furthermore, the conductor strips of the exciting wire array and the measuring wire array are bonded to the test ring by means of adhesive tape or glue.
[0016] Furthermore, a wiring harness sleeve is provided on the outer side of the conductor belt.
[0017] Furthermore, the plug and the socket each have 8 plug cores, and are distributed in two rows, wherein each plug core is numbered; during the connection process of each wire, plug core No. 2 is connected to plug core No. 1 of the socket, plug core No. 3 is connected to plug core No. 2 of the socket, plug core No. 4 is connected to plug core No. 3 of the socket, plug core No. 5 is connected to plug core No. 6 of the socket, plug core No. 6 is connected to plug core No. 7 of the socket, plug core No. 7 is connected to plug core No. 8 of the socket, and plug core No. 8 is connected to plug core No. 4 of the socket; when the socket is connected to the plug, plug core No. 1 of the plug is connected to plug core No. 1 of the socket, plug core No. 2 of the plug is connected to plug core No. 2 of the socket, and similarly, the remaining plug cores of the plug are connected to the remaining plug cores of the socket accordingly.
[0018] Compared with the prior art, the present invention has the following advantages:
[0019] 1. The coil winding becomes much easier. Previously, a(n-1) turns needed to be wound a(n-1) times, but this solution only needs to wind the coil a times. After a reasonable selection of n value, the number of windings a can be effectively reduced. At the same time, during the winding process, the coil can smoothly pass through the hole of the test ring, which greatly reduces the labor intensity and improves the efficiency of magnetic measurement of the test ring.
[0020] 2. Reasonable selection of n value and coil length L can make the coil row suitable for the winding of test ring magnetic measuring coils of more sizes, reduce the types of magnetic measuring tooling, improve the universality and modularity of magnetic measuring tooling, and thus greatly reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 This is a schematic diagram of the structure of a coil after winding in one embodiment of the present invention.
[0022] Figure 2 for Figure 1 Top view of the .
[0023] Figure 3 It is a structural schematic diagram of the center line row of the present invention.
[0024] Figure 4 This is a schematic diagram of the structure of a coil after winding in another embodiment of the present invention.
[0025] In the figure: 1—conductor, 2—plug, 3—socket, 4—excitation line bar, 5—measurement line bar, 6—test ring. DETAILED DESCRIPTION
[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0027] Embodiment: A method for winding a magnetic field measuring coil of a soft magnetic material comprises the following steps:
[0028] 1) Make two n-core wire rows: Cut n-1 wires 1 (enameled wires) of equal length, connect one end of the wire 1 to the n-core plug 2, and the other end to the n-core socket 3. Each wire 1 is connected to the 1 core of the plug 2 and the socket 3 respectively; the wires 1 between the plug 2 and the socket 3 form a wire 1 belt as a whole. One of them is the excitation wire row 4, and the other is the measurement wire row 5. During implementation, the outer side of the wire 1 belt is provided with a wire harness sleeve; in this way, it is easier to loop.
[0029] 2) The soft magnetic material to be tested is made into a ring shape to form a test ring 6.
[0030] 3) Fix the plug 2 of the exciting wire row 4, and after the socket 3 passes through the test ring 6, drive the wire 1 to wind outward and then pass through the test ring 6 again, complete the winding once, repeat the winding until a times of winding are completed, at this time the total number of turns of the exciting coil on the test ring 6 is a (n-1) turns. Similarly, wind the measuring wire row 5 around the test ring 6 b times, at this time the total number of turns of the exciting coil on the test ring 6 is b (n-1) turns.
[0031] 4) Arrange the excitation wire array 4 and the measuring wire array 5 so that the wire 1 of the excitation wire array 4 and the measuring wire array 5 is close to the test ring 6, and the turns of the wire 1 of the excitation wire array 4 and the measuring wire array 5 are evenly distributed on the test ring 6, and then fix the wire 1 of the excitation wire array 4 and the measuring wire array 5 to the test ring 6. Among them, the wire 1 of the excitation wire array 4 and the measuring wire array 5 is bonded to the test ring 6 by tape or glue; fixation is more convenient and quick.
[0032] 5) Connect the plug 2 and the socket 3 correspondingly, connect the wires 1 in series, and then lead out the two free plugs on the socket 3 and the plug 2 with the wires 1.
[0033] 6) Finally, connect the lead wire 1 of the excitation wire array 4 and the lead wire 1 of the measuring wire array 5 to the corresponding ports of the soft magnetic measuring instrument (the lead wire 1 of the excitation wire array 4 is connected to the excitation port, and the lead wire 1 of the measuring wire array 5 is connected to the magnetic measuring port), and magnetic measurement can be carried out.
[0034] See also Figure 1 , Figure 2 As an implementation method, the conductors 1 of the excitation coil 4 and the measuring coil 5 are cross-distributed; thus, the excitation coil and the measuring coil are more evenly distributed on the test ring 6, and the measurement effect is more accurate. The conductor 1 of the measuring coil 5 is wound around the conductor 1 of the excitation coil.
[0035] See also Figure 3 As an embodiment, the plug 2 and the socket 3 each have 8 plugs, which are arranged in two rows, wherein each plug has a number (number 1-8). During the connection of each wire 1, plug No. 22 is connected to plug No. 31 of the socket, plug No. 23 is connected to plug No. 32 of the socket, plug No. 24 is connected to plug No. 33 of the socket, plug No. 25 is connected to plug No. 36 of the socket, plug No. 26 is connected to plug No. 37 of the socket, plug No. 27 is connected to plug No. 38 of the socket, and plug No. 28 is connected to plug No. 34 of the socket; when the socket 3 is connected to the plug 2, plug No. 1 of the plug 2 is connected to plug No. 1 of the socket 3, plug No. 2 of the plug 2 is connected to plug No. 2 of the socket 3, and similarly, the remaining plugs of the plug 2 are connected to the remaining plugs of the socket 3 accordingly.
[0036] After plug 2 and socket 3 are plugged together with the same plug number, when current is input from the head end of the line row (the spare plug of plug 2), the current flows from plug No. 21 plug → socket No. 31 plug, and the current in wire 1 flows from socket No. 31 plug → plug No. 22 plug, and so on. The current direction in wire 1 of the line row is always from socket 3 to plug 2 until it flows to the end of the line row (plug No. 25 plug or socket 3 spare plug). Finally, the lead wire 1 of the exciting line row 4 and the lead wire 1 of the measuring line row 5 are connected to the corresponding ports of the soft magnetic measuring instrument, and magnetic measurement can be performed.
[0037] See also Figure 4 As another embodiment, the conductors 1 of the exciting wire array 4 and the measuring wire array 5 are distributed on both sides of the test ring 6; the coil winding is more convenient.
[0038] By adopting the scheme disclosed in the present invention, the winding of the coil becomes much easier. Previously, a (n-1) turns needed to be wound a (n-1) times, but in this scheme, only the wire row needs to be wound a times, and after the n value is reasonably selected, the number of windings a can be effectively reduced; at the same time, during the winding process, the wire row can smoothly pass through the hole of the test ring 6, which greatly reduces the labor intensity and improves the magnetic measurement efficiency of the test ring 6. Reasonable selection of the n value and the coil length L can make the wire row suitable for the winding of magnetic measurement coils of more sizes of the test ring 6, reduce the types of magnetic measurement tooling, improve the universality and modularity of magnetic measurement tooling, and thus greatly reduce costs.
[0039] In actual use, take the XT-9A flexible gyroscope as an example:
[0040] When the test ring 6 of the XT-9A gyroscope adopts the traditional method to measure magnetism, each test ring 6 has 56 turns of the excitation coil and 21 turns of the magnetic measuring coil. A single-strand wire 1 is used, and a total of 77 windings are required. The total winding time of each test ring 6 is about 30 minutes. However, when the 8-core wire row tooling made by the present invention is used to wind the test ring 6 for magnetic measurement, the 56 turns of the excitation coil only need to be wound 8 times (7 wires 1 are wound each time), and the 21 turns of the measuring coil only need to be wound 3 times. The number of windings of the entire test ring 6 is only 11 times, and the coil winding time of each test ring 6 is less than 5 minutes, which greatly reduces the labor intensity of the surveyor, saves operation time, and improves the efficiency of magnetic measurement.
[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the technical solution. Those skilled in the art should understand that those modifications or equivalent substitutions of the technical solution of the present invention that do not depart from the purpose and scope of the technical solution should be included in the scope of the claims of the present invention.
Claims
1. A method for winding a soft magnetic material magnetic measuring coil, characterized in that: The steps include: 1) Make two n-core wire rows: Cut n-1 wires of equal length, connect one end of the wire to an n-core plug, and the other end to an n-core socket, wherein each wire is connected to one core of the plug and socket respectively, and the wires between the plug and the socket form a wire belt as a whole; one of them is the excitation wire row, and the other is the measurement wire row; 2) Make the soft magnetic material to be tested into a ring shape to form a test ring; 3) Fix the plug of the exciting wire row, and after the socket passes through the test ring, drive the wire to wind outward and then pass through the test ring again, complete the winding once, repeat the winding until a times of winding are completed, at this time the total number of turns of the exciting coil on the test ring is a (n-1) turns; similarly, wind the measuring wire row on the test ring b times, at this time the total number of turns of the exciting coil on the test ring is b (n-1) turns; 4) Arrange the excitation wire array and the measuring wire array so that the conductor tapes of the excitation wire array and the measuring wire array are tightly attached to the test ring, and the turns of the conductor tapes of the excitation wire array and the measuring wire array are evenly distributed on the test ring, and then fix the conductor tapes of the excitation wire array and the measuring wire array to the test ring; 5) Connect the plug and socket cores accordingly, connect the wires in series, and then lead out the two free cores on the socket and plug with wires; 6) Finally, connect the lead wires of the excitation line array and the lead wires of the measuring line array to the corresponding ports of the soft magnetic measuring instrument respectively, and then the magnetic measurement can be carried out.
2. The method for winding a soft magnetic material magnetic measuring coil according to claim 1, characterized in that: The conductor strips of the exciting wire array and the measuring wire array are distributed on both sides of the test ring.
3. The method for winding a soft magnetic material magnetic measuring coil according to claim 1, characterized in that: The conductor strips of the exciting wire array and the measuring wire array are cross-distributed.
4. The method for winding a magnetic measuring coil made of a soft magnetic material according to claim 3, characterized in that: The conductor tape of the measuring line array is wound on the conductor tape of the exciting line array.
5. The method for winding a soft magnetic material magnetic measuring coil according to claim 1, characterized in that: The conductor strips of the exciting wire array and the measuring wire array are bonded to the test ring by means of tape or glue.
6. The method for winding a soft magnetic material magnetic measuring coil according to claim 1, characterized in that: The outer side of the conductor belt is covered with a wiring harness cover.
7. The method for winding a soft magnetic material magnetic measuring coil according to claim 1, characterized in that: The plug and the socket both have 8 plug cores, and are distributed in two rows, wherein each plug core is numbered; during the connection process of each wire, plug core No. 2 is connected to plug core No. 1 of the socket, plug core No. 3 is connected to plug core No. 2 of the socket, plug core No. 4 is connected to plug core No. 3 of the socket, plug core No. 5 is connected to plug core No. 6 of the socket, plug core No. 6 is connected to plug core No. 7 of the socket, plug core No. 7 is connected to plug core No. 8 of the socket, and plug core No. 8 is connected to plug core No. 4 of the socket; when the socket is connected to the plug, plug core No. 1 of the plug is connected to plug core No. 1 of the socket, plug core No. 2 of the plug is connected to plug core No. 2 of the socket, and similarly, the remaining plug cores of the plug are connected to the remaining plug cores of the socket accordingly.
Citation Information
Patent Citations
Coiling method for mutual inductor and products produced thereby
CN101299381A
Ultra-wideband non-invasive current measuring instrument and preparation method thereof
CN109727760A