Magnetic ring al value detection system, working method and detection method

Abstract

The application belongs to the technical field of measurement, and particularly relates to a magnetic ring AL Value detection system, working method and detection method, wherein the magnetic ring AL Value detection system comprises upper and lower limit position mechanisms and a magnetic ring placed therebetween; after the magnetic ring is placed between the upper and lower limit position mechanisms, upper winding mechanisms and corresponding lower winding mechanisms are in contact to form a plurality of windings on the magnetic ring, and an upper detection column in the upper limit position mechanism and a lower detection column in the lower limit position mechanism are in contact; a detector is connected with one winding and the upper detection column simultaneously to form a detection loop to obtain an actual AL Value of the single winding; an upper computer is configured to receive the actual AL Value sent by the detector and obtain a true AL Value according to the actual AL Value, so that the magnetic ring is wound by a tool, and the true AL AL Value can be accurately obtained.

Description

Technical Field

[0001] This invention belongs to the field of measurement technology, specifically relating to the measurement of magnetic variables, and more particularly to a magnetic ring. AL Value detection system, working method and detection method. Background Technology

[0002] As a key component of magnetic devices such as inductors and transformers, the characteristics of magnetic rings are crucial to the performance of switching power supplies. Therefore, it is essential to test and verify the main parameters of magnetic rings. AL This is a key parameter of the magnetic ring; therefore, it is essential to perform [specific parameter analysis] on the magnetic ring during the production of toroidal inductors or transformers. AL Measurement, for AL Value detection, the related technology uses the wire-winding method, that is, after uniformly winding wire around the magnetic ring, it is passed through a special... LCR The equipment is tested, but this method requires manual winding of wire for each magnetic ring, which is very tedious. Using a tooling system for winding can cause gaps between the wire and the magnetic ring, affecting the testing results. AL The value is inaccurate.

[0003] Therefore, due to the tediousness of manually winding the magnetic ring, using tooling for winding can cause gaps between the magnetic ring and the winding. AL Technical issues related to inaccurate value detection.

[0004] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore, the above description is not considered to constitute prior art information. Summary of the Invention

[0005] This disclosure provides at least one magnetic ring. AL Value detection system, working method and detection method.

[0006] Firstly, embodiments of this disclosure provide a magnetic ring. AL Value detection system, including:

[0007] The upper limit mechanism and the lower limit mechanism are set at the top and bottom, and a magnetic ring is placed between the two.

[0008] The upper limit mechanism is connected to several upper winding mechanisms;

[0009] The lower limit mechanism is connected to several lower winding mechanisms;

[0010] When the magnetic ring is placed between the upper limit mechanism and the lower limit mechanism, the upper winding mechanism contacts the corresponding lower winding mechanism, forming several windings on the magnetic ring, and the upper detection post in the upper limit mechanism contacts the lower detection post in the lower limit mechanism.

[0011] The detector is connected to one of the turns of the winding and also to the upper detection post to form a detection circuit, in order to obtain the actual measurement of a single turn of the winding. AL value;

[0012] The host computer is configured to receive the measured data sent by the detector. AL Value, and based on actual measurements AL Value acquisition real AL value.

[0013] In one alternative implementation, the upper limit mechanism includes: a top cover;

[0014] The lower limit mechanism includes: a base;

[0015] The top cover has several through holes;

[0016] The base is vertically provided with several guide posts, each guide post corresponding to a through hole and passing through the corresponding through hole;

[0017] The upper detection column is vertically mounted on the top cover and protrudes from both the top and bottom surfaces of the top cover;

[0018] The lower detection column is vertically mounted on the base. After the magnetic ring is placed between the top cover and the base, the upper detection column and the lower detection column come into contact.

[0019] In one optional embodiment, the upper winding mechanism includes: a plurality of upper inner guide pins and a plurality of upper outer guide pins;

[0020] The upper inner guide pin is positioned near the center of the top cover;

[0021] The upper outer guide pin is positioned near the edge of the top cover;

[0022] Both the upper inner guide pin and the upper outer guide pin are vertically arranged and pass through the top cover;

[0023] The upper inner guide pin and the corresponding upper outer guide pin are connected by an upper wire.

[0024] In one optional embodiment, the lower winding mechanism includes: a plurality of lower inner guide pins and a plurality of lower outer guide pins;

[0025] The lower inner guide pin is positioned near the center of the base;

[0026] The lower outer guide pin is positioned near the edge of the base;

[0027] Both the lower inner guide pin and the lower outer guide pin are vertically arranged and pass through the base;

[0028] The lower inner guide needle and the corresponding lower outer guide needle are connected by a lower wire;

[0029] When the lower inner guide needle contacts the corresponding upper inner guide needle, and the lower outer guide needle contacts the corresponding upper outer guide needle, the lower inner guide needle is located on the inner ring of the magnetic ring, and the lower outer guide needle is located on the outer side of the outer wall of the magnetic ring, so as to form a winding on the magnetic ring.

[0030] In one optional embodiment, the lower inner guide needle, lower outer guide needle, upper inner guide needle, and upper outer guide needle have the same diameter;

[0031] The upper and lower conductors have the same diameter.

[0032] In one alternative implementation, the host computer is configured to receive the measured data sent by the detector. AL Value, and based on actual measurements AL Value acquisition real AL Value, that is

[0033] Get the real AL value:

[0034] ;

[0035] in, AL real For the truth AL value; AL meas Actual measurement for testing by the testing instrument AL value; μ Permeability; σ The length of the air gap between the inner wall of the magnetic ring and the lower inner guide needle in one turn of the winding; l c This is the length of the magnetic circuit; k This is an empirical coefficient; D rod The diameter of the upper inner guide needle; D wire The diameter of the upper conductor; L rod It is the sum of the lengths of the lower inner guide needle, lower outer guide needle, upper inner guide needle, and upper outer guide needle in one turn of winding; L total The length of one turn of the winding;

[0036] The length of the magnetic circuit is the sum of the lengths of all windings.

[0037] Secondly, this disclosure also provides a method using the aforementioned magnetic ring. AL The working method of the value detection system includes:

[0038] When the magnetic ring is placed between the upper limit mechanism and the lower limit mechanism, the upper winding mechanism contacts the corresponding lower winding mechanism, forming several windings on the magnetic ring.

[0039] The detector is connected to one of the turns of the winding and simultaneously to the detection post in the upper limit mechanism, forming a detection loop to obtain the actual measurement of the single turn of the winding. AL value;

[0040] According to actual measurements AL Value acquisition real AL value.

[0041] Thirdly, this disclosure also provides a method using the aforementioned magnetic ring. AL Value detection system AL Value detection methods include:

[0042] Obtain the actual measurement of the detector. AL Value, and based on actual measurements AL Value acquisition real AL Value, that is

[0043] Get the real AL value:

[0044] ;

[0045] in, AL real For the truth AL value; AL meas Actual measurement for testing by the testing instrument AL value; μ Permeability; σ The length of the air gap between the inner wall of the magnetic ring and the lower inner guide needle in one turn of the winding; l c This is the length of the magnetic circuit; k This is an empirical coefficient; D rod The diameter of the inner guide pin in the winding; D wire The diameter of the upper conductor in the winding; L rod It is the sum of the lengths of the lower inner guide needle, lower outer guide needle, upper inner guide needle, and upper outer guide needle in one turn of winding; L total The length of one turn of the winding;

[0046] The length of the magnetic circuit is the sum of the lengths of all windings.

[0047] Fourthly, embodiments of this disclosure also provide a computer-readable storage medium having a computer program / instructions stored thereon, which, when executed by a processor, implements the above-described... AL The steps of the value detection method.

[0048] Fifthly, embodiments of this disclosure also provide a program product containing instructions that, when executed by a device, cause the device to perform the aforementioned... AL The steps of the value detection method.

[0049] The beneficial effect of this invention is that this magnetic ring AL The value detection system includes: an upper limit mechanism and a lower limit mechanism arranged vertically, with a magnetic ring placed between them; the upper limit mechanism is connected to several upper winding mechanisms; the lower limit mechanism is connected to several lower winding mechanisms; when the magnetic ring is placed between the upper limit mechanism and the lower limit mechanism, the upper winding mechanism contacts the corresponding lower winding mechanism, forming several windings on the magnetic ring, and the upper detection post in the upper limit mechanism contacts the lower detection post in the lower limit mechanism; a detector is connected to one of the windings and simultaneously connected to the upper detection post, forming a detection loop to obtain the measured value of a single winding. AL Value; host computer, which is configured to receive the measured data sent by the detector. AL Value, and based on actual measurements AL Value acquisition real AL This allows for the winding of the magnetic ring using tooling, and enables accurate acquisition of the actual value. AL This value avoids the gap between the magnetic ring and the winding caused by the tooling winding. AL The value detection is inaccurate.

[0050] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained through the structures particularly pointed out in the description and the drawings.

[0051] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0052] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0053] Figure 1 A magnetic ring provided in the embodiments of this disclosure AL A schematic diagram of the value detection system;

[0054] Figure 2This is a schematic diagram of the structure of a lower winding mechanism provided in an embodiment of the present disclosure;

[0055] Figure 3 This is a schematic diagram of a magnetic ring being placed and wound according to an embodiment of the present disclosure.

[0056] In the picture:

[0057] 1. Upper limit mechanism; 11. Top cover; 12. Through hole; 13. Upper detection column;

[0058] 2 Lower limit mechanism, 21 Guide post, 22 Lower detection post, 23 Annular groove, 24 Base;

[0059] 3 Upper winding mechanism, 31 Upper inner guide pin, 32 Upper outer guide pin, 33 Upper wire;

[0060] 4. Lower winding mechanism, 41. Lower inner guide pin, 42. Lower outer guide pin, 43. Lower wire;

[0061] 5. Magnetic ring. Detailed Implementation

[0062] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0063] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0064] As a key component of magnetic devices such as inductors and transformers, the characteristics of magnetic rings are crucial to the performance of switching power supplies. Therefore, it is essential to test and verify the main parameters of magnetic rings. AL This is a key parameter of the magnetic ring; therefore, it is essential to perform [specific parameter analysis] on the magnetic ring during the production of toroidal inductors or transformers. AL Measurement, for ALValue detection, the related technology uses the wire-winding method, that is, after uniformly winding wire around the magnetic ring, it is passed through a special... LCR The equipment is tested, but this method requires manual winding of wire for each magnetic ring, which is very tedious. Using a tooling system for winding can cause gaps between the wire and the magnetic ring, affecting the testing results. AL The value is inaccurate. Because the guide pin and wire are pre-set, although rapid detection is possible, the different inner diameters of the magnetic rings can lead to incomplete contact between the inner wall of the magnetic ring and the corresponding guide pin. This results in an air gap between the magnetic ring and the guide pin, causing inaccurate measurements. AL Value will be different from reality AL The values ​​are inaccurate, and because the guide needle and the wire are different types of conductors, the resulting closed loop is a segmented loop, which will also introduce detection errors. Therefore, a correction algorithm is needed to adjust the measured values. The value is corrected.

[0065] The shortcomings of the above solutions are the result of the inventor's practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as the inventor's contribution to this disclosure.

[0066] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0067] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0068] like AL As shown, at least one disclosed embodiment provides a magnetic ring. Figure 1 The value detection system includes: an upper limit mechanism 1 and a lower limit mechanism 2 arranged vertically, with a magnetic ring 5 placed between them; the upper limit mechanism 1 is connected to several upper winding mechanisms 3; the lower limit mechanism 2 is connected to several lower winding mechanisms 4; when the magnetic ring 5 is placed between the upper limit mechanism 1 and the lower limit mechanism 2, the upper winding mechanism 3 contacts the corresponding lower winding mechanism 4, forming several windings on the magnetic ring 5, and the upper detection post 13 in the upper limit mechanism 1 contacts the lower detection post 22 in the lower limit mechanism 2; a detector is connected to one of the windings and also to the upper detection post 13 to form a detection loop to obtain the actual measurement of a single winding. AL Value; host computer, which is configured to receive the measured data sent by the detector. AL Value, and based on actual measurements AL Value acquisition real ALThis allows for the winding of the magnetic ring 5 using tooling, and enables accurate acquisition of the actual value. AL This value avoids the gap between the magnetic ring 5 and the winding caused by the tooling winding. AL The value detection is inaccurate.

[0069] In this embodiment, the upper limit mechanism 1 and the lower limit mechanism 2 are set separately. After the magnetic ring 5 is placed on the lower limit mechanism 2, the upper limit mechanism 1 can be set above the magnetic ring 5. At this time, the upper winding mechanism 3 contacts the corresponding lower winding mechanism 4 to form a winding on the magnetic ring 5.

[0070] In one optional embodiment, the upper limit mechanism 1 includes a top cover 11; the lower limit mechanism 2 includes a base 24; the top cover 11 has a plurality of through holes 12; the base 24 has a plurality of guide posts 21 vertically arranged, the guide posts 21 corresponding to the through holes 12 and passing through the corresponding through holes 12; the upper detection post 13 is vertically arranged on the top cover 11 and protrudes from both the top and bottom surfaces of the top cover 11; the lower detection post 22 is vertically arranged on the base 24, and after the magnetic ring 5 is placed between the top cover 11 and the base 24, the upper detection post 13 contacts the lower detection post 22.

[0071] In this embodiment, an annular groove 23 can be formed on the top surface of the base 24. The magnetic ring 5 is placed in the annular groove 23. The annular groove 23 can facilitate the positioning of the magnetic ring 5. The annular groove 23 is adapted to the outer diameter of the magnetic ring 5 to facilitate accurate positioning of the magnetic ring 5. After the magnetic ring 5 is placed, there will be an air gap between the inner wall of the magnetic ring 5 and the upper inner guide needle 31 and the lower inner guide needle 41. The outer diameter of the magnetic ring 5 is fixed, but the inner diameter will change due to different specifications. Therefore, there are different lengths of air gaps between the inner wall of the magnetic ring 5 and the upper inner guide needle 31 and the lower inner guide needle 41.

[0072] In this embodiment, when the magnetic ring 5 is placed, the axis of the magnetic ring 5 coincides with the axis of the top cover 11.

[0073] In this embodiment, there can be three through holes 12. The through holes 12 and the guide post 21 cooperate to limit the position of the base 24 and the top cover 11. The through holes 12 and the guide post 21 are slidably arranged to facilitate the top cover 11 to move up and down along the guide post 21, so as to facilitate the installation and removal of the top cover 11. By limiting the position between the top cover 11 and the base 24, the upper detection post 13 can be aligned with the lower detection post 22, the upper inner guide pin 31 can be aligned with the corresponding lower inner guide pin 41, and the upper outer guide pin 32 can be aligned with the corresponding lower outer guide pin 42.

[0074] In one optional embodiment, the upper winding mechanism 3 includes: a plurality of upper inner guide pins 31 and a plurality of upper outer guide pins 32; the upper inner guide pins 31 are disposed near the center of the top cover 11; the upper outer guide pins 32 are disposed near the edge of the top cover 11; the upper inner guide pins 31 and the upper outer guide pins 32 are both vertically disposed and pass through the top cover 11; the upper inner guide pins 31 and the corresponding upper outer guide pins 32 are connected by upper wires 33.

[0075] like AL As shown, in an optional embodiment, the lower winding mechanism 4 includes: a plurality of lower inner guide pins 41 and a plurality of lower outer guide pins 42; the lower inner guide pins 41 are disposed near the center of the base 24; the lower outer guide pins 42 are disposed near the edge of the base 24; the lower inner guide pins 41 and the lower outer guide pins 42 are both vertically disposed and pass through the base 24; the lower inner guide pins 41 and the corresponding lower outer guide pins 42 are connected by a lower wire 43; when the lower inner guide pin 41 contacts the corresponding upper inner guide pin 31 and the lower outer guide pin 42 contacts the corresponding upper outer guide pin 32, the lower inner guide pin 41 is located in the inner ring of the magnetic ring 5 and the lower outer guide pin 42 is located on the outer side of the outer wall of the magnetic ring 5, so as to form a winding on the magnetic ring 5.

[0076] In this embodiment, before testing the magnetic ring 5, the top cover 11 and the base 24 are separated. At this time, the magnetic ring 5 is placed in the annular groove 23 of the base 24. Then, the through hole 12 of the top cover 11 is aligned with the corresponding guide post 21. The top cover 11 is slid down until the upper detection post 13 contacts the lower detection post 22, the upper inner guide pin 31 contacts the corresponding lower inner guide pin 41, and the upper outer guide pin 32 contacts the corresponding lower outer guide pin 42, so as to form several windings on the magnetic ring 5, without the need for manual winding of multiple windings on the magnetic ring 5.

[0077] In this embodiment, the detector can be a dedicated device. Figure 2 After placing the magnetic ring 5, connect the detector to the upper detection column 13 and one turn of winding. After obtaining the test data, divide the test data by 25 to obtain the actual measurement of a single turn of winding. LCR value.

[0078] In this embodiment, a circle with the center point of the base 24 as the center and the closest distance between the center point and the lower inner guide pin 41 as the radius is tangent to all the lower inner guide pins 41, so that after the magnetic ring 5 is placed, the shortest distance between each lower inner guide pin 41 and the inner wall of the magnetic ring 5 is equal.

[0079] In this embodiment, a circle with the center point of the base 24 as the center and the closest distance between the center point and the lower outer guide pin 42 as the radius is tangent to all the lower outer guide pins 42, so that after the magnetic ring 5 is placed, the shortest distance between each lower outer guide pin 42 and the outer wall of the magnetic ring 5 is equal.

[0080] In one optional embodiment, the lower inner guide needle 41, the lower outer guide needle 42, the upper inner guide needle 31, and the upper outer guide needle 32 have the same diameter; the upper wire 33 and the lower wire 43 have the same diameter.

[0081] In this embodiment, the lower inner guide needle 41 and the upper inner guide needle 31 completely overlap after contact, and the lower outer guide needle 42 and the upper outer guide needle 32 completely overlap after contact.

[0082] In one alternative implementation, the host computer is configured to receive the measured data sent by the detector. AL Value, and based on actual measurements AL Value acquisition real AL Value, i.e., obtaining the true value AL value:

[0083] ;

[0084] in, AL real For the truth AL Value, the true value of a single-turn winding AL Value, unit is AL / N 2 ; nH meas Actual measurement for testing by the testing instrument AL Value, i.e., the measured value of a single-turn winding. AL Value, unit is AL / N 2 ; nH Permeability; μ The air gap length between the inner wall of the magnetic ring 5 and the lower inner guide pin 41 in one turn of the winding is given in units of 1. σ ; l c Magnetic circuit length, in units of mm ; k This is an empirical coefficient, in units of... mm / N 2 ; D rod The diameter of the upper inner guide pin 31 is given in units of... nH ; D wire The diameter of the upper conductor is 33, and the unit is... mm ; L rod The sum of the lengths of the lower inner guide needle 41, lower outer guide needle 42, upper inner guide needle 31, and upper outer guide needle 32 in one turn of winding, in units of... mm ; L total The length of one turn of the winding, in units of mmThe length of the magnetic circuit is the sum of the lengths of all windings.

[0085] In this embodiment, the air gap length is the shortest distance between the upper inner guide pin 31 and the inner wall of the magnetic ring 5 in one turn of the winding, that is... mm middle a .

[0086] At least one other disclosed embodiment also provides a method using the above-described magnetic ring. Figure 3 The working method of the value detection system includes: after the magnetic ring 5 is placed between the upper limit mechanism 1 and the lower limit mechanism 2, the upper winding mechanism 3 contacts the corresponding lower winding mechanism 4, forming several windings on the magnetic ring 5; the detector is connected to one of the windings and simultaneously connected to the detection post set in the upper limit mechanism 1 to form a detection circuit, so as to obtain the actual measurement of a single winding. AL Value; based on actual measurement AL Value acquisition real AL value.

[0087] At least one other disclosed embodiment also provides a method using the above-described magnetic ring. AL Value detection system AL Value detection methods include: acquiring the measured values ​​detected by the detector. AL Value, and based on actual measurements AL Value acquisition real AL Value, i.e., obtaining the true value AL value:

[0088] ;

[0089] in, AL real For the truth AL value; AL meas Actual measurement for testing by the testing instrument AL value; AL Permeability; μ The length of the air gap between the inner wall of the magnetic ring 5 and the lower inner guide needle 41 in one turn of the winding; l c This is the length of the magnetic circuit; k This is an empirical coefficient; D rod The diameter of the inner guide pin 31 in the winding is shown. D wire The diameter of the upper conductor in the winding is 33. L rod It is the sum of the lengths of the lower inner guide needle 41, the lower outer guide needle 42, the upper inner guide needle 31, and the upper outer guide needle 32 in one turn of the winding; L total The length of one turn of the winding is given; the length of the magnetic circuit is the sum of the lengths of all the windings.

[0090] In this embodiment, For air gap compensation, This is a material modification item.

[0091] At least one other disclosed embodiment also provides a computer-readable storage medium having a computer program / instructions stored thereon that, when executed by a processor, implements the above-described embodiments.

[08] ]σ The steps of the value detection method.

[0092] At least one other disclosed embodiment also provides a program product comprising instructions that, when executed by a device, cause the device to perform the above-described... AL The steps of the value detection method.

[0093] In summary, this magnetic ring AL The value detection system includes: an upper limit mechanism 1 and a lower limit mechanism 2 arranged vertically, with a magnetic ring 5 placed between them; the upper limit mechanism 1 is connected to several upper winding mechanisms 3; the lower limit mechanism 2 is connected to several lower winding mechanisms 4; when the magnetic ring 5 is placed between the upper limit mechanism 1 and the lower limit mechanism 2, the upper winding mechanism 3 contacts the corresponding lower winding mechanism 4, forming several windings on the magnetic ring 5, and the upper detection post 13 in the upper limit mechanism 1 contacts the lower detection post 22 in the lower limit mechanism 2; a detector is connected to one of the windings and also to the upper detection post 13 to form a detection loop to obtain the actual measurement of a single winding. AL Value; host computer, which is configured to receive the measured data sent by the detector. AL Value, and based on actual measurements AL Value acquisition real AL This allows for the winding of the magnetic ring 5 using tooling, and enables accurate acquisition of the actual value. AL This value avoids the gap between the magnetic ring 5 and the winding caused by the tooling winding. AL AL The value detection is inaccurate.

[0094] In the description of the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0095] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as a second element, component, region, layer, or segment.

[0096] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0097] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A magnetic ring AL Value detection system, characterized in that, include: The upper limit mechanism (1) and the lower limit mechanism (2) are set at the top and bottom respectively, and a magnetic ring (5) is placed between them. The upper limit mechanism (1) is connected to several upper winding mechanisms (3); The lower limit mechanism (2) is connected to several lower winding mechanisms (4); When the magnetic ring (5) is placed between the upper limit mechanism (1) and the lower limit mechanism (2), the upper winding mechanism (3) contacts the corresponding lower winding mechanism (4) to form several windings on the magnetic ring (5), and the upper detection post (13) in the upper limit mechanism (1) contacts the lower detection post (22) in the lower limit mechanism (2); The detector is connected to one of the turns of the winding and also to the upper detection post (13) to form a detection circuit to obtain the actual measurement of the single turn of the winding. AL value; The host computer is configured to receive the measured data sent by the detector. AL Value, and based on actual measurements AL Value acquisition real AL value; The upper winding mechanism (3) includes: a plurality of upper inner guide pins (31) and a plurality of upper outer guide pins (32). The upper inner guide pin (31) is positioned near the center of the top cover (11); The upper outer guide pin (32) is positioned near the edge of the top cover (11); Both the upper inner guide pin (31) and the upper outer guide pin (32) are vertically arranged and pass through the top cover (11). The upper inner guide needle (31) and the corresponding upper outer guide needle (32) are connected by an upper wire (33); The lower winding mechanism (4) includes: a plurality of lower inner guide pins (41) and a plurality of lower outer guide pins (42). The lower inner guide pin (41) is positioned near the center of the base (24); The lower outer guide pin (42) is positioned near the edge of the base (24); Both the lower inner guide pin (41) and the lower outer guide pin (42) are vertically arranged and pass through the base (24). The lower inner guide needle (41) and the corresponding lower outer guide needle (42) are connected by a lower wire (43); When the lower inner guide needle (41) contacts the corresponding upper inner guide needle (31) and the lower outer guide needle (42) contacts the corresponding upper outer guide needle (32), the lower inner guide needle (41) is located in the inner ring of the magnetic ring (5) and the lower outer guide needle (42) is located on the outer side of the outer wall of the magnetic ring (5) to form a winding on the magnetic ring (5); The host computer is configured to receive the measured data sent by the detector. AL Value, and based on actual measurements AL Value acquisition real AL Value, that is Get the real AL value: ； in, AL real For the truth AL value; AL meas Actual measurement for testing by the testing instrument AL value; μ Permeability; σ The length of the air gap between the inner wall of the magnetic ring (5) and the lower inner guide needle (41) in one turn of the winding; l c This is the length of the magnetic circuit; k This is an empirical coefficient; D rod The diameter of the upper inner guide needle (31); D wire The diameter of the upper conductor (33); L rod It is the sum of the lengths of the lower inner guide needle (41), the lower outer guide needle (42), the upper inner guide needle (31), and the upper outer guide needle (32) in one turn of the winding; L total The length of one turn of the winding; The length of the magnetic circuit is the sum of the lengths of all windings.

2. The magnetic ring as described in claim 1 AL Value detection system, characterized in that: The upper limit mechanism (1) includes: a top cover (11); The lower limit mechanism (2) includes: a base (24); The top cover (11) has several through holes (12); A plurality of guide posts (21) are vertically arranged on the base (24). The guide posts (21) correspond to the through holes (12) and the guide posts (21) pass through the corresponding through holes (12). The upper detection column (13) is vertically mounted on the top cover (11) and protrudes from both the top and bottom surfaces of the top cover (11); The lower detection column (22) is vertically mounted on the base (24). After the magnetic ring (5) is placed between the top cover (11) and the base (24), the upper detection column (13) contacts the lower detection column (22).

3. The magnetic ring as described in claim 2 AL Value detection system, characterized in that: The lower inner guide needle (41), lower outer guide needle (42), upper inner guide needle (31), and upper outer guide needle (32) have the same diameter; The upper conductor (33) and the lower conductor (43) have the same diameter.

4. A magnetic ring as described in claim 1 AL The working method of the value detection system is characterized by, include: When the magnetic ring (5) is placed between the upper limit mechanism (1) and the lower limit mechanism (2), the upper winding mechanism (3) contacts the corresponding lower winding mechanism (4) to form several windings on the magnetic ring (5); The detector is connected to one of the turns of the winding and simultaneously connected to the detection post in the upper limit mechanism (1) to form a detection loop, so as to obtain the actual measurement of the single turn of the winding. AL value; According to actual measurements AL Value acquisition real AL value.

5. A magnetic ring as described in claim 1 AL Value detection system AL Value detection method, characterized in that, include: Obtain the actual measurement of the detector. AL Value, and based on actual measurements AL Value acquisition real AL Value, that is Get the real AL value: ； in, AL real For the truth AL value; AL meas Actual measurement for testing by the testing instrument AL value; μ Permeability; σ The length of the air gap between the inner wall of the magnetic ring (5) and the lower inner guide needle (41) in one turn of the winding; l c This is the length of the magnetic circuit; k This is an empirical coefficient; D rod The diameter of the inner guide needle (31) in the winding is denoted as . D wire The diameter of the upper conductor (33) in the winding; L rod It is the sum of the lengths of the lower inner guide needle (41), the lower outer guide needle (42), the upper inner guide needle (31), and the upper outer guide needle (32) in one turn of the winding; L total The length of one turn of the winding; The length of the magnetic circuit is the sum of the lengths of all windings.

6. A computer-readable storage medium having a computer program / instructions stored thereon, characterized in that, When the computer program / instructions are executed by the processor, they implement the features described in claim 5. AL The steps of the value detection method.

7. A program product containing instructions, characterized in that, When the instruction is executed by the device, the device performs the action described in claim 5. AL The steps of the value detection method.

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