CN113539627B - High-frequency transformation high-inductance value high-permeability ferrite core with high heat dissipation efficiency - Google Patents
High-frequency transformation high-inductance value high-permeability ferrite core with high heat dissipation efficiency Download PDFInfo
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- CN113539627B CN113539627B CN202110759251.8A CN202110759251A CN113539627B CN 113539627 B CN113539627 B CN 113539627B CN 202110759251 A CN202110759251 A CN 202110759251A CN 113539627 B CN113539627 B CN 113539627B
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- Prior art keywords
- magnetic core
- annular
- mounting hole
- annular ring
- ring
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- 229910000859 α-Fe Inorganic materials 0.000 title claims abstract description 14
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 9
- 230000009466 transformation Effects 0.000 title abstract description 8
- 230000005291 magnetic effect Effects 0.000 claims abstract description 71
- 238000007664 blowing Methods 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 13
- 241000883990 Flabellum Species 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 4
- 230000035699 permeability Effects 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 3
- 230000001131 transforming effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 229910000616 Ferromanganese Inorganic materials 0.000 description 1
- 229910001289 Manganese-zinc ferrite Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- JIYIUPFAJUGHNL-UHFFFAOYSA-N [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] JIYIUPFAJUGHNL-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- 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
- H01F27/08—Cooling; Ventilating
- H01F27/085—Cooling by ambient air
-
- 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
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/266—Fastening or mounting the core on casing or support
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformer Cooling (AREA)
Abstract
The invention provides a high-frequency transformation high-inductance value high-permeability ferrite core with high heat dissipation efficiency, which comprises a magnetic core, wherein both ends of the magnetic core are respectively provided with a fifth mounting hole, the fifth mounting holes are through holes, the central axes of the fifth mounting holes and the central axes of the magnetic core are arranged in parallel, each fifth mounting hole is internally provided with a connecting column, the cross section of the magnetic core is of an annular structure, the upper end and the lower end of the magnetic core are respectively provided with a blowing structure, each blowing structure comprises a second annular ring, the second annular rings are overlapped at the end parts of the magnetic core, the middle part of each second annular ring is provided with a motor fixing shell, and the side surfaces of the motor fixing shells are connected with the first annular rings through a plurality of arc rods. When the air blower is used, the air blower structure arranged at the two ends of the magnetic core can cool the interior of the air blower rapidly, and the air blower is operated around the magnetic core, so that the outer surface of the magnetic core can be cooled.
Description
Technical Field
The invention belongs to the technical field of magnetic cores, and particularly relates to a ferrite magnetic core with high heat dissipation efficiency, high frequency transformation, high inductance value and high magnetic conductivity.
Background
Ferrite cores are composed mainly of 3 metallic elements of ferro-manganese and zinc, commonly referred to as manganese-zinc ferrite. The toroidal ferrite core has a high magnetic effect because it has no air gap and a uniform cross-sectional area. In the actual operation, in addition to the heating temperature rise caused by the resistance of the coil itself, the ac electromagnet also generates heat of the magnetic core, and the alternating magnetic field generates an induced current in the magnetic core, which causes the magnetic core to generate heat, thereby transferring heat to the coil and increasing the temperature of the coil.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a high-frequency transformation high-inductance value high-permeability ferrite core with high heat dissipation efficiency.
The technical scheme of the invention is realized as follows: the utility model provides a ferrite core of high frequency transformation high inductance value high permeability that radiating efficiency is high, including the magnetic core, the fifth mounting hole has all been seted up at the both ends of magnetic core, the fifth mounting hole is the through-hole, the central axis of fifth mounting hole and the central axis parallel arrangement of magnetic core, all be equipped with a spliced pole in every fifth mounting hole, the cross section of magnetic core is annular structure, both ends all are equipped with the structure of blowing about the magnetic core, the structure of blowing includes the second annular ring, the second annular ring superposes at the magnetic core tip, the middle part position of every second annular ring all is equipped with the motor fixed shell, all link to each other through a plurality of arc poles between the side of motor fixed shell and the first annular ring, all install the motor in the motor fixed shell, two motors set up relatively, install the flabellum in the pivot of motor, one of which is bloied towards the magnetic core inside, another structure of blowing is towards the magnetic core outside exhaust, the fourth mounting hole has been seted up on the surface of first annular ring, the fourth mounting hole cover is on the spliced pole.
Preferably, the first annular ring is connected with the first circulating channel coaxially at one side far away from the magnetic core, and dust screens are arranged at the end parts of the first circulating channel.
Preferably, a second annular ring is arranged between the first annular ring and the magnetic core end part, a seventh mounting hole is formed in the surface of the second annular ring, the seventh mounting hole is sleeved on the connecting column, an annular supporting ring is arranged between the second annular ring and the magnetic core end part, a third mounting hole is formed in the upper end face and the lower end face of the annular supporting ring, and the third mounting hole is sleeved on the connecting column;
An air inlet cover with a conical structure is arranged in the second annular ring, the air inlet cover is positioned in the annular supporting ring, the fan blades are positioned in the air inlet cover, and a plurality of strip-shaped openings are formed in the surface of the air inlet cover;
The driving shaft of the motor positioned below is coaxially connected with a rotating shaft, the rotating shaft penetrates through the center of the air inlet cover and extends into the magnetic core, and spiral blades are arranged on the surface of the rotating shaft.
Preferably, the rotating shaft is sleeved with a conical guide cover, and the conical guide cover is arranged at one end of the air inlet cover, which is far away from the motor.
Preferably, one side of the annular supporting ring far away from the magnetic core is provided with an annular limiting plate, the inner surface of the annular limiting plate is provided with a first mounting hole, the first mounting hole is sleeved on the connecting column, the edge of the annular limiting plate extends to the outer side of the magnetic core, and the outer edge of the annular limiting plate is provided with a second mounting hole;
A sealing cover is arranged between the edges of the two annular limiting plates, the magnetic core is positioned in the sealing cover, the upper end and the lower end of the sealing cover are respectively provided with a sixth mounting hole, and the second mounting holes and the sixth mounting holes are fastened through screws;
Two second circulation channels are symmetrically arranged on the side face of the sealing cover, and exhaust fans are arranged in the second circulation channels.
Preferably, the ends of the second circulation passages are each provided with a dust screen.
Preferably, the annular support ring is of an insulating material.
Preferably, both ends of the connecting column are connected with the fastening nuts in a threaded manner.
Compared with the prior art, when the air blower is used, the air blower can be used for quickly cooling the inside of the air blower through the air blower structures arranged at the two ends of the magnetic core, and the air blower is used for blowing air around the magnetic core, so that the outer surface of the magnetic core can be cooled.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
Fig. 1 is a schematic diagram of a ferrite core with high heat dissipation efficiency, high inductance and high magnetic permeability for high frequency transformation.
Fig. 2 is a schematic diagram of a high-frequency transforming high-inductance high-permeability ferrite core with high heat dissipation efficiency.
In the figure: the magnetic core 1, the fan blade 2, the motor 3, the connecting column 4, the first mounting hole 5, the annular limiting plate 6, the second mounting hole 7, the third mounting hole 8, the annular supporting ring 9, the conical guide cover 10, the air inlet cover 11, the first annular ring 12, the fourth mounting hole 13, the first circulating channel 14, the motor fixing shell 15, the arc-shaped rod 16, the second annular ring 17, the strip-shaped opening 18, the fifth mounting hole 19, the sixth mounting hole 20, the sealing cover 21, the second circulating channel 22, the rotating shaft 23, the helical blade 24 and the seventh mounting hole 25.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a high frequency transformation high inductance value high permeability ferrite core that radiating efficiency is high, includes magnetic core 1, and fifth mounting hole 19 has all been seted up at magnetic core 1's both ends, and fifth mounting hole 19 is the through-hole, and the central axis of fifth mounting hole 19 and the central axis parallel arrangement of magnetic core 1 all are equipped with a spliced pole 4 in every fifth mounting hole 19;
The cross section of magnetic core 1 is annular structure, both ends all are equipped with the structure of blowing about magnetic core 1, the structure of blowing includes second annular circle 17, second annular circle 17 superposes at magnetic core 1 tip, the middle part position of every second annular circle 17 all is equipped with motor fixed shell 15, all link to each other through a plurality of arc poles 16 between motor fixed shell 15's the side and the first annular circle 12, motor 3 is all installed to in the motor fixed shell 15, two motors 3 set up relatively, install flabellum 2 in motor 3's pivot, one of them structure of blowing is toward the inside of magnetic core 1, another structure of blowing is toward the outside of magnetic core 1 exhaust, fourth mounting hole 13 has been seted up on the surface of first annular circle 12, fourth mounting hole 13 cover is on spliced pole 4.
Specifically, when the invention is used, the two blowing structures start to operate at the same time, so that the heat in the magnetic core is rapidly discharged, and the heat of the magnetic core is reduced.
Further, the first annular ring 12 is coaxially connected to the first circulation channel 14 on a side far away from the magnetic core 1, dust-proof nets are installed at the end portions of the first circulation channel 14, and the first circulation channel 14 can guide out air flow exhausted by the fan blades.
Further, a second annular ring 17 is arranged between the first annular ring 12 and the end part of the magnetic core 1, a seventh mounting hole 25 is formed in the surface of the second annular ring 17, the seventh mounting hole 25 is sleeved on the connecting column 4, an annular supporting ring 9 is arranged between the second annular ring 17 and the end part of the magnetic core 1, a third mounting hole 8 is formed in the upper end face and the lower end face of the annular supporting ring 9, and the third mounting hole 8 is sleeved on the connecting column 4;
The second annular rings 17 are internally provided with air inlet covers 11 with conical structures, the air inlet covers 11 are positioned in the annular supporting rings 9, the fan blades 2 are positioned in the air inlet covers 11, and a plurality of strip-shaped openings 18 are formed in the surfaces of the air inlet covers 11;
A rotating shaft 23 is coaxially connected to the driving shaft of the motor 3 below, the rotating shaft 23 penetrates through the center of the air inlet cover 11 and extends into the magnetic core 1, and a spiral blade 24 is arranged on the surface of the rotating shaft 23.
Specifically, when the fan blade rotates to blow, air flow can directly blow on the air inlet cover 11, the air inlet cover 11 gathers together the air flow, then the air flow enters the magnetic core through the strip-shaped openings, and the air flow can enter the magnetic core from each strip-shaped opening.
Further, a conical guide cover 10 is sleeved on the rotating shaft 23, the conical guide cover 10 is arranged at one end of the air inlet cover 11 far away from the motor 3, and the conical guide cover 10 is used for guiding air flow to the inner surface of the magnetic core.
Further, one side of the annular supporting ring 9 far away from the magnetic core 1 is provided with an annular limiting plate 6, the inner surface of the annular limiting plate 6 is provided with a first mounting hole 5, the first mounting hole 5 is sleeved on the connecting column 4, the edge of the annular limiting plate 6 extends to the outer side of the magnetic core 1, the outer edge of the annular limiting plate 6 is provided with a second mounting hole 7, and the annular limiting plate 6 is used for blocking coils wound on the surface of the magnetic core;
A sealing cover 21 is arranged between the edges of the two annular limiting plates 6, the magnetic core 1 is positioned in the sealing cover 21, the upper end and the lower end of the sealing cover 21 are respectively provided with a sixth mounting hole 20, and the second mounting holes 7 and the sixth mounting holes 20 are fastened by screws;
Two second circulation channels 22 are symmetrically arranged on the side face of the sealing cover 21, and exhaust fans are arranged in the second circulation channels 22.
Specifically, after the two exhaust fans are started, the heat of the outer surface of the coil can be blown away, so that the inner surface and the outer surface of the magnetic core are effectively cooled.
Further, dust-proof nets are installed at the ends of the second circulation passages 22.
Further, the annular supporting ring 9 is made of insulating material.
Further, both ends of the connecting column 4 are connected with fastening nuts in a threaded manner.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides a high-frequency high inductance value high permeability ferrite core that radiating efficiency is high, including magnetic core (1), fifth mounting hole (19) have all been seted up at the both ends of magnetic core (1), fifth mounting hole (19) are the through-hole, the central axis of fifth mounting hole (19) and the central axis parallel arrangement of magnetic core (1), all be equipped with one spliced pole (4) in every fifth mounting hole (19), a serial communication port, the cross section of magnetic core (1) is annular structure, both ends all are equipped with the structure of blowing about magnetic core (1), the structure of blowing includes second annular ring (17), second annular ring (17) superpose is in magnetic core (1) tip, all be equipped with motor set casing (15) in the middle part position of every second annular ring (17), all link to each other through a plurality of arc pole (16) between the side of motor set casing (15) and first annular ring (12), all install motor (3) in motor set up relatively, install flabellum (2) on the pivot of motor (3), one of flabellum (1) is towards interior structure (1), the fourth is equipped with the fourth and is set up in the annular ring (13) of fan core (13) outside the hole of blowing, a second annular ring (17) is arranged between the first annular ring (12) and the end part of the magnetic core (1), a seventh mounting hole (25) is formed in the surface of the second annular ring (17), the seventh mounting hole (25) is sleeved on the connecting column (4), an annular supporting ring (9) is arranged between the second annular ring (17) and the end part of the magnetic core (1), a third mounting hole (8) is formed in the upper end surface and the lower end surface of the annular supporting ring (9), and the third mounting hole (8) is sleeved on the connecting column (4);
An air inlet cover (11) with a conical structure is arranged in the second annular ring (17), the air inlet cover (11) is positioned in the annular supporting ring (9), the fan blades (2) are positioned in the air inlet cover (11), and a plurality of strip-shaped openings (18) are formed in the surface of the air inlet cover (11);
a rotating shaft (23) is coaxially connected to the driving shaft of the motor (3) positioned below, the rotating shaft (23) penetrates through the center of the air inlet cover (11) and extends into the magnetic core (1), and a spiral blade (24) is arranged on the surface of the rotating shaft (23);
A conical guide cover (10) is sleeved on the rotating shaft (23), and the conical guide cover (10) is arranged at one end of the air inlet cover (11) far away from the motor (3);
One side of the annular supporting ring (9) far away from the magnetic core (1) is provided with an annular limiting plate (6), the inner surface of the annular limiting plate (6) is provided with a first mounting hole (5), the first mounting hole (5) is sleeved on the connecting column (4), the edge of the annular limiting plate (6) extends to the outer side of the magnetic core (1), and the outer edge of the annular limiting plate (6) is provided with a second mounting hole (7);
A sealing cover (21) is arranged between the edges of the two annular limiting plates (6), the magnetic core (1) is positioned in the sealing cover (21), the upper end and the lower end of the sealing cover (21) are respectively provided with a sixth mounting hole (20), and the second mounting holes (7) and the sixth mounting holes (20) are fastened through screws;
Two second circulation channels (22) are symmetrically arranged on the side face of the sealing cover (21), exhaust fans are arranged in the second circulation channels (22), dust screens are arranged at the tail ends of the second circulation channels (22), and the annular supporting rings (9) are made of insulating materials.
2. The high-frequency transforming high-inductance value high-permeability ferrite core with high heat dissipation efficiency according to claim 1, characterized in that one side of the first annular ring (12) far away from the core (1) is coaxially connected with a first circulation channel (14), and dust screens are installed at the end parts of the first circulation channel (14).
3. The high-frequency transforming high-inductance value high-permeability ferrite core with high heat dissipation efficiency according to claim 1, characterized in that both ends of the connecting post (4) are screwed with fastening nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110759251.8A CN113539627B (en) | 2021-07-06 | 2021-07-06 | High-frequency transformation high-inductance value high-permeability ferrite core with high heat dissipation efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110759251.8A CN113539627B (en) | 2021-07-06 | 2021-07-06 | High-frequency transformation high-inductance value high-permeability ferrite core with high heat dissipation efficiency |
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| Publication Number | Publication Date |
|---|---|
| CN113539627A CN113539627A (en) | 2021-10-22 |
| CN113539627B true CN113539627B (en) | 2024-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110759251.8A Active CN113539627B (en) | 2021-07-06 | 2021-07-06 | High-frequency transformation high-inductance value high-permeability ferrite core with high heat dissipation efficiency |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209267292U (en) * | 2019-03-11 | 2019-08-16 | 中山尔比特磁电科技有限公司 | A kind of dedicated patch type soft magnetic core of high-performance motor |
| CN210958048U (en) * | 2019-12-26 | 2020-07-07 | 江西迈得机电配件有限公司 | Brushless motor's radiator unit |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202856576U (en) * | 2012-09-13 | 2013-04-03 | 韩非 | Novel fan blade shaft sleeve type rotor device |
| CN204886562U (en) * | 2015-09-02 | 2015-12-16 | 浙江申元机电有限公司 | Heat radiation structure in four jar air compressor machines |
| CN206149063U (en) * | 2016-11-15 | 2017-05-03 | 深圳市唯川科技有限公司 | A slotless brushless DC motor for turbofan |
| CN207752857U (en) * | 2017-12-25 | 2018-08-21 | 抚州市双菱磁性材料有限公司 | A kind of high frequency transformer of good heat dissipation effect |
| CN209072171U (en) * | 2018-11-12 | 2019-07-05 | 中山大洋电机股份有限公司 | A kind of motor |
| CN209561150U (en) * | 2019-05-11 | 2019-10-29 | 山东嘉诺电子有限公司 | A kind of magnetic core convenient for Inside coil heat dissipation |
| CN210865816U (en) * | 2019-10-21 | 2020-06-26 | 张果鑫 | Dry-type transformer for electric power engineering |
| CN213519573U (en) * | 2020-12-09 | 2021-06-22 | 杭州壹控电力设备有限公司 | Self-locking low-voltage current transformer |
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2021
- 2021-07-06 CN CN202110759251.8A patent/CN113539627B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209267292U (en) * | 2019-03-11 | 2019-08-16 | 中山尔比特磁电科技有限公司 | A kind of dedicated patch type soft magnetic core of high-performance motor |
| CN210958048U (en) * | 2019-12-26 | 2020-07-07 | 江西迈得机电配件有限公司 | Brushless motor's radiator unit |
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| CN113539627A (en) | 2021-10-22 |
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