CN114496554A - Method for processing annular inductor based on isotropic magnetic film - Google Patents
Method for processing annular inductor based on isotropic magnetic film Download PDFInfo
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- CN114496554A CN114496554A CN202210167191.5A CN202210167191A CN114496554A CN 114496554 A CN114496554 A CN 114496554A CN 202210167191 A CN202210167191 A CN 202210167191A CN 114496554 A CN114496554 A CN 114496554A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/08—Winding conductors onto closed formers or cores, e.g. threading conductors through toroidal cores
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
- H01F27/2455—Magnetic cores made from sheets, e.g. grain-oriented using bent laminations
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2895—Windings disposed upon ring cores
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0233—Manufacturing of magnetic circuits made from sheets
Abstract
The invention discloses a method for processing a ring-shaped inductor based on an isotropic magnetic film, which comprises the steps of S1, blanking an iron core, firstly preparing a silicon steel sheet of the ring-shaped iron core, taking the ratio of the folded iron core to the height according to the preparation of the iron core with the ring size, S2, polishing burrs generated by a polisher, S7, winding a coil, preparing a rubber sleeve, and then sleeving the rubber sleeve with a through hole on the surface of the iron core to enable the coil wound each time to penetrate out of the through hole of the rubber sleeve and enter the rubber sleeve. This annular inductor's processing method based on isotropic magnetic film, the sharp point of solving the burr can rip adjacent insulating layer, causes a large amount of eddy current losses, and the iron core generates heat, and the consumption increases, seriously influences the quality index of annular iron core inductor, and the coil winding can cause the clearance size between inequality on the iron core in addition, and how to avoid the extravagant problem of material during the unloading.
Description
Technical Field
The invention relates to the technical field of inductors, in particular to a method for processing a ring inductor based on an isotropic magnetic film.
Background
An inductor is a circuit element that generates an electromotive force due to a change in a current passing therethrough, thereby resisting the change in the current. The inductor is similar in structure to a transformer, but has only one winding, and generally consists of a bobbin, a winding, a shield, an encapsulating material, a magnetic core or an iron core, and the like. If the inductor is in a state where no current is passing, it will try to block the current from flowing through it when the circuit is on; if the inductor is in a current passing state, the inductor will try to keep the current unchanged when the circuit is disconnected
Wherein the annular iron core inductor of same sex magnetic film is adding man-hour, because the iron sheet unloading makes silicon steel both sides produce the burr easily when tailorring, the sharp point that makes the burr can rip adjacent insulating layer, make the silicon steel sheet interval form the route of one strip, cause a large amount of eddy current losses, the iron core generates heat, the consumption increases, seriously influences the quality index of annular iron core inductor, the coil winding can cause the clearance size between inequality on the iron core in addition, how to avoid the extravagant problem of material during and the unloading.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a processing method of an annular inductor based on an isotropic magnetic film, which solves the problems that burrs are easily generated on two sides of silicon steel when an iron sheet is cut during blanking, the sharp points of the burrs scratch adjacent insulating layers, strip-by-strip passages are formed among silicon steel sheets, a large amount of eddy current loss is caused, an iron core generates heat, the power consumption is increased, the quality index of the annular iron core inductor is seriously influenced, in addition, the sizes of gaps among coils wound on the iron core are different, and the material waste is avoided during blanking.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a processing method of a ring inductor based on an isotropic magnetic film specifically comprises the following steps:
s1, blanking of the iron core: firstly, preparing silicon steel sheets of an annular iron core, and taking the ratio of the stacked iron cores to the height of the iron cores according to the manufacture of the iron cores with the annular size;
s2, grinding: then, manufacturing an annular iron core through a scissor car according to a proportion, wherein burrs are generated on two edges of a silicon steel strip when the geometrical shape of the cutting edge of the hob is changed during the manufacturing of the annular iron core through the scissor car, and then the generated burrs need to be ground through a grinding machine to be flattened;
s3, cleaning: then, cleaning the dust generated by polishing with clear water, and drying with a dryer;
s4, iron core winding: in order to ensure that the laminations of the iron core are wound tightly, a proper clamp is selected to keep the transverse density, the winding of a ring core is tidy, corresponding pressure is applied according to the iron core with a non-broken specification during winding, and a mountain motor is dragged to form pulling force to tightly wind the silicon steel strips layer by layer;
s5, annealing treatment: heating the formed annular iron core, and then slowly and continuously cooling to eliminate the generated internal stress;
s6, annealing treatment: then carrying out a vacuum paint dipping process on the annular iron core;
s7, coil winding: firstly, preparing a rubber sleeve, uniformly and symmetrically arranging through holes with the same size as the coils in an inner cavity of the rubber sleeve, then sleeving the rubber sleeve with the through holes on the surface of an iron core, then placing the iron core on winding equipment, enabling the coils wound each time to penetrate through the through holes of the rubber sleeve and enter the through holes, ensuring that gaps among the coils on the iron core are the same until the coils are wound, and taking down the formed inductor;
s8, pressing: the inductor is observed after being taken down, whether a gap exists between the coil and the iron core is observed, after the gap exists, the coil with the space is pressed through the pressing sheet, the surface and the inner cavity of the coil and the iron core are attached, and the annular iron core inductor is completed.
Preferably, the drying time of the dryer in the step S3 is 5-10 min.
Preferably, the algorithm of the step S1 for the ratio of the post-stack height to the height is as follows;
taiwan iron R: 1, R is 3, H is 2, section s is 4, specific gravity d is 8, mass m-dr. H is 40192;
winnowing, wherein if 1 is 1, R is 2 and H is 4, S is fR) H is 4 and mass m is 30144;
the more the silicon steel sheets are laminated, the larger the space factor K' S, the larger the sectional area, which is equivalent to the larger the weight and volume of the r-core, due to the double-sided insulating material.
Preferably, the heating temperature in the step of S5 is 30-50 ℃, and the cooling time is 3-10 min.
Preferably, the paint used for vacuum dipping in the step S6 is a high-strength high-temperature resin.
Preferably, the vacuum pressure of the vacuum dipping in the step S6 is 0.02-0.06 mPa.
Preferably, the vacuum dipping time in the step S6 is 15-25 min.
Preferably, the ratio of the post-lamination height to the height of the iron core in the step S1 is 1: 2.
Advantageous effects
The invention provides a method for processing a ring inductor based on an isotropic magnetic film. Compared with the prior art, the method has the following beneficial effects:
1. this annular inductor's processing method based on isotropic magnetic film, through preparing the rubber sleeve, and set up the through-hole the same size with the coil in the even symmetry of the inner chamber of rubber sleeve, then the rubber sleeve cover that will have the through-hole is on the surface of iron core, then put the iron core on winding equipment, make the winding coil of every turn all wear out in the through-hole of rubber sleeve and get into, can guarantee that the clearance between the coil is all the same on the iron core, thereby solve because of coil clearance variation in size, it produces the electric current and also can have the change, lead to causing certain influence to the use.
2. According to the processing method of the annular inductor based on the isotropic magnetic film, the iron core with the annular size is manufactured, the ratio of the post-lamination height to the height of the iron core is taken, and the ratio of the post-lamination height to the height of the iron core is as follows: 1, R is 3, H is 2, the section S is 4, the specific gravity d is 8, the mass m-dr is 40192, the iron pan is winnowed, if 1 is 1, R is 2, H is 4, S is fR) H is 4, the mass m is 30144, it can be seen that the two kinds of ring-shaped iron cores with the sections 1, 4 and 2 are 25% lighter than the latter although the areas are the same, and the material consumption of the silicon steel sheet is one fourth.
3. This annular inductor's processing method based on isotropic magnetic film grinds the burr that appears through the polisher, makes it become level and smooth, can avoid tailorring and make silicon steel both sides produce the burr, makes the sharp point of burr can cut open adjacent insulating layer, makes the silicon steel lamella interval form the route of one strip, causes a large amount of eddy current losses, and the iron core generates heat, and the consumption increases, seriously influences the problem of annular iron core inductor's quality index.
Drawings
FIG. 1 is a flow chart of the method of the present invention;
fig. 2 is a schematic view of the rubber sleeve of the present invention.
In the figure: 1. a rubber sleeve; 2. and a through hole.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Please refer to FIG. 1:2
Example 1
The invention provides a technical scheme that: a processing method of a ring inductor based on an isotropic magnetic film specifically comprises the following steps:
s1, blanking of the iron core: firstly, preparing silicon steel sheets of an annular iron core, and taking the ratio of the stacked iron cores to the height of the iron cores according to the manufacture of the iron cores with the annular size;
s2, grinding: then, manufacturing an annular iron core through a scissor car according to a proportion, wherein burrs are generated on two edges of a silicon steel strip when the geometrical shape of the cutting edge of the hob is changed during the manufacturing of the annular iron core through the scissor car, and then the generated burrs need to be ground through a grinding machine to be flattened;
s3, cleaning: then, cleaning the dust generated by polishing with clear water, and drying with a dryer;
s4, iron core winding: in order to ensure that the laminations of the iron core are wound tightly, a proper clamp is selected to keep the transverse density, the winding of a ring core is tidy, corresponding pressure is applied according to the iron core with a non-broken specification during winding, and a mountain motor is dragged to form pulling force to tightly wind the silicon steel strips layer by layer;
s5, annealing treatment: heating the formed annular iron core, and then slowly and continuously cooling to eliminate the generated internal stress;
s6, annealing treatment: then carrying out a vacuum paint dipping process on the annular iron core;
s8, coil winding: firstly, preparing a rubber sleeve 1, uniformly and symmetrically arranging through holes 2 with the same size as the coils in an inner cavity of the rubber sleeve 1, then sleeving the rubber sleeve 1 with the through holes 2 on the surface of an iron core, then placing the iron core on a winding device, enabling the coils wound each time to penetrate through the through holes 2 of the rubber sleeve 1 and enter the iron core, ensuring that gaps among the coils on the iron core are the same until the coils are wound, and taking down the formed inductor;
s8, pressing: the inductor is observed after being taken down, whether a gap exists between the coil and the iron core is observed, after the gap exists, the coil with the space is pressed through the pressing sheet, the surface and the inner cavity of the coil and the iron core are attached, and the annular iron core inductor is completed.
Further, the drying time of the dryer in the step S3 is 5 min.
Further, the algorithm of the ratio of the post-stack height and the height in step S1 is as follows;
taiwan iron R: 1, R is 3, H is 2, section s is 4, specific gravity d is 8, mass m-dr. H is 40192;
winnowing, wherein if 1 is equal to 1, R is equal to 2, and H is equal to 4, S is equal to fRH is equal to 4, and mass m is equal to 30144;
the more the silicon steel sheets are laminated, the larger the space factor K' S, the larger the sectional area, which is equivalent to the larger the weight and volume of the r-core, due to the double-sided insulating material.
Further, the heating temperature in the step of S5 was 30 ℃, and the cooling time was 3 min.
Further, the vacuum dip coating in step S6 uses a high-strength high-temperature resin as the coating.
Further, the vacuum pressure of the vacuum dip coating in the step S6 was 0.02 mPa.
Further, the time for vacuum dipping in the step S6 is 15 min.
Further, the ratio of the post-lamination height of the iron core in the step S1 is 1: 2.
Example 2
The invention provides a technical scheme that: a processing method of a ring inductor based on an isotropic magnetic film specifically comprises the following steps:
s1, blanking of the iron core: firstly, preparing silicon steel sheets of an annular iron core, and taking the ratio of the stacked iron cores to the height of the iron cores according to the manufacture of the iron cores with the annular size;
s2, grinding: then, manufacturing an annular iron core through a scissor car according to a proportion, wherein burrs are generated on two edges of a silicon steel strip when the geometrical shape of the cutting edge of the hob is changed during the manufacturing of the annular iron core through the scissor car, and then the generated burrs need to be ground through a grinding machine to be flattened;
s3, cleaning: then, cleaning the dust generated by polishing with clear water, and drying with a dryer;
s4, iron core winding: in order to ensure that the laminations of the iron core are wound tightly, a proper clamp is selected to keep the transverse density, the winding of a ring core is tidy, corresponding pressure is applied according to the iron core with a non-broken specification during winding, and a mountain motor is dragged to form pulling force to tightly wind the silicon steel strips layer by layer;
s5, annealing treatment: heating the formed annular iron core, and then slowly and continuously cooling to eliminate the generated internal stress;
s6, annealing treatment: then carrying out a vacuum paint dipping process on the annular iron core;
s7, coil winding: firstly, preparing a rubber sleeve 1, uniformly and symmetrically arranging through holes 2 with the same size as the coils in an inner cavity of the rubber sleeve 1, then sleeving the rubber sleeve 1 with the through holes 2 on the surface of an iron core, then placing the iron core on a winding device, enabling the coils wound each time to penetrate through the through holes 2 of the rubber sleeve 1 and enter the iron core, ensuring that gaps among the coils on the iron core are the same until the coils are wound, and taking down the formed inductor;
s8, pressing: the inductor is observed after being taken down, whether a gap exists between the coil and the iron core is observed, after the gap exists, the coil with the space is pressed through the pressing sheet, the surface and the inner cavity of the coil and the iron core are attached, and the annular iron core inductor is completed.
Further, the drying time of the dryer in the step S3 is 7.5 min.
Further, the algorithm of the ratio of the post-stack height and the height in step S1 is as follows;
taiwan iron R: 1, R is 3, H is 2, section s is 4, specific gravity d is 8, mass m-dr. H is 40192;
winnowing, wherein if 1 is equal to 1, R is equal to 2, and H is equal to 4, S is equal to fRH is equal to 4, and mass m is equal to 30144;
the more the silicon steel sheets are laminated, the larger the space factor K' S, the larger the sectional area, which is equivalent to the larger the weight and volume of the r-core, due to the double-sided insulating material.
Further, the heating temperature in the step of S5 was 40 ℃, and the cooling time was 7 min.
Further, the vacuum dip coating in step S6 uses a high-strength high-temperature resin as the coating.
Further, the vacuum pressure of the vacuum dip coating in the step S6 was 0.04 mPa.
Further, the time for vacuum dipping in the step S6 is 20 min.
Further, the ratio of the post-lamination height of the iron core in the step S1 is 1: 2.
Example 3
The invention provides a technical scheme that: a processing method of a ring inductor based on an isotropic magnetic film specifically comprises the following steps:
s1, blanking of the iron core: firstly, preparing silicon steel sheets of an annular iron core, and taking the ratio of the stacked iron cores to the height of the iron cores according to the manufacture of the iron cores with the annular size;
s2, grinding: then, manufacturing an annular iron core through a scissor car according to a proportion, wherein burrs are generated on two edges of a silicon steel strip when the geometrical shape of the cutting edge of the hob is changed during the manufacturing of the annular iron core through the scissor car, and then the generated burrs need to be ground through a grinding machine to be flattened;
s3, cleaning: then, cleaning the dust generated by polishing with clear water, and drying with a dryer;
s4, iron core winding: in order to ensure that the laminations of the iron core are wound tightly, a proper clamp is selected to keep the transverse density, the winding of a ring core is tidy, corresponding pressure is applied according to the iron core with a non-broken specification during winding, and a mountain motor is dragged to form pulling force to tightly wind the silicon steel strips layer by layer;
s5, annealing treatment: heating the formed annular iron core, and then slowly and continuously cooling to eliminate the generated internal stress;
s6, annealing treatment: then carrying out a vacuum paint dipping process on the annular iron core;
s7, coil winding: firstly, preparing a rubber sleeve 1, uniformly and symmetrically arranging through holes 2 with the same size as the coils in an inner cavity of the rubber sleeve 1, then sleeving the rubber sleeve 1 with the through holes 2 on the surface of an iron core, then placing the iron core on a winding device, enabling the coils wound each time to penetrate through the through holes 2 of the rubber sleeve 1 and enter the iron core, ensuring that gaps among the coils on the iron core are the same until the coils are wound, and taking down the formed inductor;
s8, pressing: and (4) observing the inductor after taking off the inductor, observing whether a gap exists between the coil and the iron core, and pressing the coil with the space through the pressing sheet after the gap exists, so that the surfaces and the inner cavity of the coil and the iron core are all attached, namely the annular iron core inductor is completed.
Further, the drying time of the dryer in the step S3 is 10 min.
Further, the algorithm of the ratio of the post-stack height and the height in step S1 is as follows;
taiwan iron R: 1, R is 3, H is 2, section s is 4, specific gravity d is 8, mass m-dr. H is 40192;
winnowing, wherein if 1 is equal to 1, R is equal to 2, and H is equal to 4, S is equal to fRH is equal to 4, and mass m is equal to 30144;
the more the silicon steel sheets are laminated, the larger the space factor K' S, the larger the sectional area, which is equivalent to the larger the weight and volume of the r-core, due to the double-sided insulating material.
Further, the heating temperature in the step of S5 was 50 ℃, and the cooling time was 10 min.
Further, the vacuum dip coating in step S6 uses a high-strength high-temperature resin as the coating.
Further, the vacuum pressure of the vacuum dip coating in the step S6 was 0.06 mPa.
Further, the time for vacuum dipping in the step S6 is 25 min.
Further, the ratio of the post-lamination height of the iron core in the step S1 is 1: 2.
And those not described in detail in this specification are well within the skill of those in the art.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A processing method of a ring inductor based on an isotropic magnetic film is characterized in that: the method specifically comprises the following steps:
s1, blanking of the iron core: firstly, preparing silicon steel sheets of an annular iron core, and taking the ratio of the stacked iron cores to the height of the iron cores according to the manufacture of the iron cores with the annular size;
s2, grinding: then, manufacturing an annular iron core through a scissor car according to a proportion, wherein burrs are generated on two edges of a silicon steel strip when the geometrical shape of the cutting edge of the hob is changed during the manufacturing of the annular iron core through the scissor car, and then the generated burrs need to be ground through a grinding machine to be flattened;
s3, cleaning: then, cleaning the dust generated by polishing with clear water, and drying with a dryer;
s4, winding the iron core: in order to ensure that the laminations of the iron core are wound tightly, a proper clamp is selected to keep the transverse density, the winding of a ring core is tidy, corresponding pressure is applied according to the iron core with a non-broken specification during winding, and a mountain motor is dragged to form pulling force to tightly wind the silicon steel strips layer by layer;
s5, annealing treatment: heating the formed annular iron core, and then slowly and continuously cooling to eliminate the generated internal stress;
s6, vacuum dipping: then carrying out a vacuum paint dipping process on the annular iron core;
s7, coil winding: firstly, preparing a rubber sleeve (1), uniformly and symmetrically arranging through holes (2) with the same size as coils in an inner cavity of the rubber sleeve (1), then sleeving the rubber sleeve (1) with the through holes (2) on the surface of an iron core, then placing the iron core on a winding device, enabling the coils wound each time to penetrate through the through holes (2) of the rubber sleeve (1) and enter the iron core, ensuring that gaps among the coils on the iron core are the same until winding is completed, and taking down a formed inductor;
s8, pressing: the inductor is observed after being taken down, whether a gap exists between the coil and the iron core is observed, after the gap exists, the coil with the space is pressed through the pressing sheet, the surface and the inner cavity of the coil and the iron core are attached, and the annular iron core inductor is completed.
2. The processing method of the annular inductor based on the isotropic magnetic film as claimed in claim 1, wherein: and the drying time of the dryer in the step S3 is 5-10 min.
3. The processing method of the annular inductor based on the isotropic magnetic film as claimed in claim 1, wherein: the algorithm of the step S1 for the ratio of post-stack to height is as follows;
taiwan iron R: 1, R is 3, H is 2, section s is 4, specific gravity d is 8, mass m-dr. H is 40192;
winnowing, wherein if 1 is 1, R is 2 and H is 4, S is fR) H is 4 and mass m is 30144;
the more the silicon steel sheet is laminated, the more the space factor K' S is increased due to the factor of the double-sided insulating material, which is equivalent to increase the weight and volume of the r iron core.
4. The processing method of the annular inductor based on the isotropic magnetic film as claimed in claim 1, wherein: the heating temperature in the step S5 is 30-50 ℃, and the cooling time is 3-10 min.
5. The processing method of the annular inductor based on the isotropic magnetic film as claimed in claim 1, wherein: the paint adopted by the vacuum dipping paint in the step S6 is high-strength high-temperature resin.
6. The method for processing the annular inductor based on the isotropic magnetic film as claimed in, wherein: and the vacuum pressure of the vacuum dipping paint in the step S6 is 0.02-0.06 mPa.
7. The processing method of the annular inductor based on the isotropic magnetic film as claimed in claim 1, wherein: and the vacuum paint dipping time in the step S6 is 15-25 min.
8. The processing method of the annular inductor based on the isotropic magnetic film as claimed in claim 1, wherein: the ratio of the post-lamination to the height of the iron core in the step S1 is 1: 2.
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