CN215265863U - High-inductance stable magnetic core - Google Patents

High-inductance stable magnetic core Download PDF

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Publication number
CN215265863U
CN215265863U CN202121692964.9U CN202121692964U CN215265863U CN 215265863 U CN215265863 U CN 215265863U CN 202121692964 U CN202121692964 U CN 202121692964U CN 215265863 U CN215265863 U CN 215265863U
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magnetic core
dustcoat
inductance
layer
acrylic acid
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周建伟
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Haining Weiye Electronics Co ltd
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Haining Weiye Electronics Co ltd
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Abstract

The utility model discloses a high inductance stable form magnetic core, including interior magnetic core, top cap magnetic core, dustcoat magnetic core and bottom plate magnetic core, the top of dustcoat magnetic core is equipped with the top cap magnetic core, and the bottom of dustcoat magnetic core is equipped with the bottom plate magnetic core, is equipped with interior magnetic core in the dustcoat magnetic core, and the outside winding of interior magnetic core has inductance coils, and inductance coils's outside equidistance is equipped with a plurality of rectangular plate bodies, and the central evenly distributed of interior magnetic core has the several mounting hole, all is equipped with the magnetic core pole in the mounting hole. This high inductance stable form magnetic core, the stability of this magnetic core has been improved, loss remain stable equal under the high frequency, the stability of this magnetic core has further been improved, the flexibility and the magnetic flux of this magnetic core have been improved, stable performance, help distributing this magnetic core the heat that produces at the during operation, the stability of maintaining high strength work, organosilicon modified acrylic acid wearing layer helps improving the wearability of this magnetic core, avoid long-term and copper line contact to produce the damage that the friction caused the magnetic core, and service life is prolonged.

Description

High-inductance stable magnetic core
Technical Field
The utility model relates to a magnetic core technical field specifically is a high inductance stable form magnetic core.
Background
Magnetic core refers to a sintered magnetic metal oxide composed of various iron oxide mixtures. For example, manganese-zinc ferrite and nickel-zinc ferrite are typical magnetic core materials. Ferrite cores are used in coils and transformers of various electronic devices, are high-frequency magnetic conductive materials, and are mainly used as high-frequency transformers (such as switching power supplies, line output transformers and the like), high-frequency magnetic rings (for interference resistance) and the like. The manganese-zinc ferrite has the characteristics of high magnetic permeability and high magnetic flux density, and has the characteristic of lower loss when the frequency is lower than 1 MHz. The nickel-zinc ferrite has the characteristics of extremely high impedance, low magnetic conductivity of less than hundreds of percent and the like, generates lower loss at the frequency higher than 1MHz and the like, and can increase the magnetic flux density of a magnetic circuit of an electromagnetic coil and reduce the copper loss when used in a circuit so as to increase the electromagnetic induction intensity and improve the voltage conversion efficiency. The existing magnetic core is generally in a sealed state, a magnetic field generated inside the magnetic core is easily shielded under the better sealing state, the stability is poor, the stability in high-strength working is poor, the magnetic core is easily made to be too large in loss of elements inside the magnetic core in working, the damage to the magnetic core is caused, the service life of the magnetic core is not prolonged, and the design of the high-inductance stable magnetic core is necessary for overcoming the defects.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high inductance stable form magnetic core has the stability that has improved this magnetic core, and loss remain stable equal under the high frequency, has improved the flexibility and the magnetic flux of this magnetic core, and the stable performance helps distributing this magnetic core the heat that produces at the during operation, maintains the stability of high strength work, has avoided producing the damage that the friction caused the magnetic core with copper line contact for a long time, has prolonged life's effect, can solve the problem among the prior art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high inductance stable form magnetic core, includes interior magnetic core, top cap magnetic core, dustcoat magnetic core and bottom plate magnetic core, the top of dustcoat magnetic core is equipped with the top cap magnetic core, and the bottom of dustcoat magnetic core is equipped with the bottom plate magnetic core, is equipped with interior magnetic core in the dustcoat magnetic core, and the outside winding of interior magnetic core has inductance coils, and inductance coils's outside equidistance is equipped with a plurality of rectangular plate bodies, and the central evenly distributed of interior magnetic core has the several mounting hole, all is equipped with the magnetic core pole in the mounting hole.
Preferably, the top outside of interior magnetic core is equipped with the external screw thread, and the central point of top cap magnetic core puts and is equipped with the through-hole, and the inside of through-hole is equipped with the internal thread, interior magnetic core and top cap magnetic core threaded connection, and top cap magnetic core and dustcoat magnetic core junction are equipped with magnetism and glue.
Preferably, the bottom of the inner magnetic core is fixed on the bottom plate magnetic core, a bonding layer is arranged at the joint of the bottom plate magnetic core and the outer cover magnetic core, and the thickness of the bonding layer is the same as that of the magnetic glue and is 1-1.5 mm.
Preferably, the outside of dustcoat magnetic core is equipped with the modified acrylic acid wearing layer of one deck organosilicon, and the one side that the modified acrylic acid wearing layer of organosilicon was kept away from to the dustcoat magnetic core is equipped with insulating heat conduction pouring sealant, and the inboard of insulating heat conduction pouring sealant is equipped with the modified acrylic acid heat-conducting layer of boron nitride, and the modified acrylic acid heat-conducting layer of boron nitride is kept away from one side of insulating heat conduction pouring sealant and is equipped with the epoxy insulating layer, and epoxy insulating layer zonulae occludens is in inductance coils's the outside.
Preferably, the thickness of the organosilicon modified acrylic acid wear-resistant layer is 1-1.5mm, the thickness of the boron nitride modified acrylic acid heat conduction layer is 1.2-1.5mm, the thickness of the epoxy resin insulation layer is 1-1.2mm, and the thickness of the insulating heat conduction pouring sealant is 0.6-1.2 mm.
Preferably, one end of the rectangular plate body is connected with the inductance coil, and the other end of the rectangular plate body is connected with the inner wall of the outer cover magnetic core.
Preferably, the inner magnetic core penetrates through the top cover magnetic core and extends to the outside, the inner magnetic core is a manganese-zinc ferrite magnetic core, and the top cover magnetic core, the outer cover magnetic core and the bottom plate magnetic core are alloy powder cores.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. this high inductance stable form magnetic core, the inductance coils of setting have better conductibility, have solved this magnetic core when the installation because sealed cause the magnetic field easily by the problem of dustcoat magnetic core shielding, have improved the stability of this magnetic core, the magnetic core pole of setting can share this magnetic core loss that produces at the during operation, loss remain stable under the high frequency and equal, have further improved the stability of this magnetic core.
2. This high inductance stable form magnetic core, the rectangular plate body of setting has enlarged the area when this magnetic core produces magnetic flux including the magnetic core, has improved the flexibility and the magnetic flux of this magnetic core, the stable performance.
3. This high inductance stable form magnetic core, boron nitride modified acrylic acid heat-conducting layer have better heat conductivity, help distributing this magnetic core the heat that produces at the during operation, maintain the stability of high strength work, and organosilicon modified acrylic acid wearing layer helps improving the wearability of this magnetic core, avoids producing the damage that the friction caused the magnetic core with copper line contact for a long time, has prolonged life.
Drawings
Fig. 1 is a schematic external structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic top view of a part of the structure of the present invention;
fig. 4 is a schematic cross-sectional view of a part of the structure of the present invention.
In the figure: 1. an inner magnetic core; 2. a top cover magnetic core; 3. an outer cover magnetic core; 4. a bottom plate magnetic core; 5. a bonding layer; 6. an inductor coil; 7. magnetic glue; 8. an epoxy resin insulating layer; 9. a boron nitride modified acrylic acid heat conducting layer; 10. insulating heat-conducting pouring sealant; 11. an organosilicon modified acrylic acid wear-resistant layer; 12. an external thread; 13. a rectangular plate body; 14. mounting holes; 15. a magnetic core round bar.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, a high-inductance stable magnetic core includes an inner magnetic core 1, a top cover magnetic core 2, an outer cover magnetic core 3 and a bottom plate magnetic core 4, the top of the outer cover magnetic core 3 is provided with the top cover magnetic core 2, the bottom of the outer cover magnetic core 3 is provided with the bottom plate magnetic core 4, the inner magnetic core 1 is arranged in the outer cover magnetic core 3, the outer side of the inner magnetic core 1 is wound with an inductance coil 6, the outer side of the outer cover magnetic core 3 is provided with an organosilicon modified acrylic acid wear-resistant layer 11, one side of the outer cover magnetic core 3 away from the organosilicon modified acrylic acid wear-resistant layer 11 is provided with an insulating heat-conducting potting adhesive 10, the inner side of the insulating heat-conducting potting adhesive 10 is provided with a boron nitride modified acrylic acid heat-conducting layer 9, one side of the boron nitride modified acrylic acid heat-conducting layer 9 away from the insulating heat-conducting potting adhesive 10 is provided with an epoxy resin insulating layer 8, the epoxy resin insulating layer 8 is tightly connected to the outer side of the inductance coil 6 at equal intervals, the outer side of the inductance coil 6 is provided with a plurality of rectangular plate bodies 13, a plurality of mounting holes 14 are uniformly distributed at the center of the inner magnetic core 1, magnetic core round bars 15 are arranged in the mounting holes 14, external threads 12 are arranged on the outer side of the top of the inner magnetic core 1, a through hole is arranged at the center of the top cover magnetic core 2, internal threads are arranged inside the through hole, the inner magnetic core 1 is in threaded connection with the top cover magnetic core 2, magnetic glue 7 is arranged at the joint of the top cover magnetic core 2 and the outer cover magnetic core 3, the bottom of the inner magnetic core 1 is fixed on the bottom plate magnetic core 4, a bonding layer 5 is arranged at the joint of the bottom plate magnetic core 4 and the outer cover magnetic core 3, the thickness of the organosilicon modified acrylic acid wear-resistant layer 11 is 1-1.5mm, the thickness of the boron nitride modified acrylic acid heat-conducting layer 9 is 1.2-1.5mm, the boron nitride modified acrylic acid heat-conducting layer 9 has better heat conductivity, and is beneficial to radiating heat generated by the magnetic core during working, the stability of high-intensity working is maintained, the thickness of the epoxy resin insulating layer 8 is 1-1.2mm, epoxy insulating layer 8 adhesiveness is strong, with the cooperation of insulating heat conduction casting glue 10, higher insulating nature has, the thickness of insulating heat conduction casting glue 10 is 0.6-1.2mm, the thickness of tie coat 5 is the same with the thickness of magnetic cement 7, tie coat 5 and magnetic cement 7 have stronger stickness, the leakproofness of this magnetic core has further been improved, be 1-1.5mm, the one end and the inductance coils 6 of rectangular plate body 13 link together, the other end links together with the inner wall of dustcoat magnetic core 3, interior magnetic core 1 passes top cap magnetic core 2 and extends to the outside, interior magnetic core 1 is manganese zinc ferrite magnetic core, top cap magnetic core 2, dustcoat magnetic core 3 and bottom plate magnetic core 4 are the alloy powder core.
In conclusion, the high-inductance stable magnetic core and the inductance coil 6 are arranged, the problem that when the magnetic core is installed, a magnetic field is easily shielded by the outer cover magnetic core 3 due to the fact that a sealed space is formed by the top cover magnetic core 2, the bottom plate magnetic core 4 and the outer cover magnetic core 3 is solved, the stability of the magnetic core is improved, the arranged magnetic core round bar 15 can share the loss generated by the magnetic core in working, the loss is kept stable and equal under high frequency, the stability of the magnetic core is further improved, the area of the magnetic core when the magnetic core generates magnetic flux in the inner magnetic core 1 is enlarged by the arranged rectangular plate body 13, the flexibility and the magnetic flux of the magnetic core are improved, the performance is stable, the boron nitride modified acrylic heat conduction layer 9 has better heat conductivity, the heat generated by the magnetic core in working is favorably dissipated, the stability of high-strength working is maintained, and the wear-resistant layer 11 of the organosilicon modified acrylic is favorable for improving the wear resistance of the magnetic core, avoid long-term contact with the copper line to produce the damage that rubs and cause the magnetic core, prolonged life.
It is noted that, herein, relational terms such as first and second, and the like may be 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 (7)

1. The utility model provides a high inductance stable form magnetic core, includes interior magnetic core (1), top cap magnetic core (2), dustcoat magnetic core (3) and bottom plate magnetic core (4), its characterized in that: the top of dustcoat magnetic core (3) is equipped with top cap magnetic core (2), and the bottom of dustcoat magnetic core (3) is equipped with bottom plate magnetic core (4), is equipped with interior magnetic core (1) in dustcoat magnetic core (3), and the outside winding of interior magnetic core (1) has inductance coils (6), and the outside equidistance of inductance coils (6) is equipped with a plurality of rectangular plate bodies (13), and the central evenly distributed of interior magnetic core (1) has several mounting hole (14), all is equipped with magnetic core round bar (15) in mounting hole (14).
2. A high inductance stable magnetic core according to claim 1, wherein: the top outside of interior magnetic core (1) is equipped with external screw thread (12), and the central point of top cap magnetic core (2) puts and is equipped with the through-hole, and the inside of through-hole is equipped with the internal thread, and interior magnetic core (1) and top cap magnetic core (2) threaded connection, top cap magnetic core (2) and dustcoat magnetic core (3) junction are equipped with magnetism and glue (7).
3. A high inductance stable magnetic core according to claim 1, wherein: the bottom of the inner magnetic core (1) is fixed on the bottom plate magnetic core (4), the joint of the bottom plate magnetic core (4) and the outer cover magnetic core (3) is provided with a bonding layer (5), and the thickness of the bonding layer (5) is the same as that of the magnetic glue (7) and is 1-1.5 mm.
4. A high inductance stable magnetic core according to claim 1, wherein: the outside of dustcoat magnetic core (3) is equipped with one deck organosilicon modified acrylic acid wearing layer (11), and one side that organosilicon modified acrylic acid wearing layer (11) were kept away from in dustcoat magnetic core (3) is equipped with insulating heat conduction casting glue (10), and the inboard of insulating heat conduction casting glue (10) is equipped with boron nitride modified acrylic acid heat-conducting layer (9), and one side that insulating heat conduction casting glue (10) were kept away from in boron nitride modified acrylic acid heat-conducting layer (9) is equipped with epoxy insulating layer (8), epoxy insulating layer (8) zonulae occludens is in the outside of inductance coils (6).
5. A high inductance stable magnetic core according to claim 4, wherein: the thickness of the organic silicon modified acrylic acid wear-resistant layer (11) is 1-1.5mm, the thickness of the boron nitride modified acrylic acid heat conduction layer (9) is 1.2-1.5mm, the thickness of the epoxy resin insulation layer (8) is 1-1.2mm, and the thickness of the insulation heat conduction pouring sealant (10) is 0.6-1.2 mm.
6. A high inductance stable magnetic core according to claim 1, wherein: one end of the rectangular plate body (13) is connected with the inductance coil (6), and the other end of the rectangular plate body is connected with the inner wall of the outer cover magnetic core (3).
7. A high inductance stable magnetic core according to claim 1, wherein: the inner magnetic core (1) penetrates through the top cover magnetic core (2) and extends to the outside.
CN202121692964.9U 2021-07-25 2021-07-25 High-inductance stable magnetic core Active CN215265863U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121692964.9U CN215265863U (en) 2021-07-25 2021-07-25 High-inductance stable magnetic core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121692964.9U CN215265863U (en) 2021-07-25 2021-07-25 High-inductance stable magnetic core

Publications (1)

Publication Number Publication Date
CN215265863U true CN215265863U (en) 2021-12-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121692964.9U Active CN215265863U (en) 2021-07-25 2021-07-25 High-inductance stable magnetic core

Country Status (1)

Country Link
CN (1) CN215265863U (en)

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