CN113539627A - High-frequency variable-voltage high-inductance-value high-permeability ferrite core with high heat dissipation efficiency - Google Patents
High-frequency variable-voltage high-inductance-value high-permeability ferrite core with high heat dissipation efficiency Download PDFInfo
- Publication number
- CN113539627A CN113539627A CN202110759251.8A CN202110759251A CN113539627A CN 113539627 A CN113539627 A CN 113539627A CN 202110759251 A CN202110759251 A CN 202110759251A CN 113539627 A CN113539627 A CN 113539627A
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- magnetic core
- annular
- mounting hole
- core
- heat dissipation
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- 229910000859 α-Fe Inorganic materials 0.000 title claims abstract description 21
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 17
- 230000005291 magnetic effect Effects 0.000 claims abstract description 84
- 238000007664 blowing Methods 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims description 12
- 239000000428 dust Substances 0.000 claims description 6
- 241000883990 Flabellum Species 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 230000009466 transformation Effects 0.000 claims 4
- 230000035699 permeability Effects 0.000 claims 3
- 238000001816 cooling Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 229910000616 Ferromanganese Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000903 blocking effect Effects 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
Images
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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformer Cooling (AREA)
Abstract
The invention provides a high-frequency voltage-changing high-inductance-value high-permeability ferrite magnetic core with high heat dissipation efficiency, which comprises a magnetic core, wherein fifth mounting holes are formed in two ends of the magnetic core, the fifth mounting holes are through holes, the central axis of each fifth mounting hole is parallel to the central axis of the magnetic core, a connecting column is arranged in each fifth mounting hole, the cross section of the magnetic core is of an annular structure, blowing structures are arranged at the upper end and the lower end of the magnetic core respectively, each blowing structure comprises a second annular ring, the second annular rings are overlapped at the end parts of the magnetic core, a motor fixing shell is arranged in the middle of each second annular ring, and the side surfaces of the motor fixing shells are connected with the first annular rings through a plurality of arc-shaped rods. When the magnetic core cooling device is used, the inside of the magnetic core can be rapidly cooled through the air blowing structures arranged at the two ends of the magnetic core, and the air blowing operation is performed 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 high-frequency variable-voltage high-inductance high-permeability ferrite magnetic core with high heat dissipation efficiency.
Background
Ferrite cores are composed primarily of 3 metal elements, ferro-manganese and zinc, and are commonly referred to as manganese-zinc-ferrites. The toroidal ferrite core has a high magnetic effect because it has no air gap and has a uniform cross-sectional area. In practical use, in the case of an ac electromagnet, in addition to the temperature rise due to the resistance of the coil itself, the heating of the magnetic core is also the cause, and the alternating magnetic field generates an induced current in the magnetic core, which causes the magnetic core to heat, thereby transferring heat to the coil and raising the temperature of the coil.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the high-frequency variable-voltage high-inductance high-permeability ferrite core with high heat dissipation efficiency.
The technical scheme of the invention is realized as follows: a high-frequency variable-voltage high-inductance-value high-permeability ferrite magnetic core with high heat dissipation efficiency comprises a magnetic core, wherein fifth mounting holes are formed in two ends of the magnetic core respectively and are through holes, the central axis of each fifth mounting hole is parallel to the central axis of the magnetic core, 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 superposed on the end parts of the magnetic core, the middle part of each second annular ring is provided with a motor fixing shell, the side surfaces of the motor fixing shells are connected with the first annular rings through a plurality of arc-shaped rods, motors are respectively arranged in the motor fixing shells, the two motors are oppositely arranged, fan blades are arranged on rotating shafts of the motors, one blowing structure blows air towards the inside of the magnetic core, and the other blowing structure exhausts air towards the outside of the magnetic core, and a fourth mounting hole is formed in the surface of the first annular ring and sleeved on the connecting column.
Preferably, one side of the first annular ring, which is far away from the magnetic core, is coaxially connected with a first circulating channel, and the end parts of the first circulating channel are provided with dust screens.
Preferably, a second annular ring is arranged between the first annular ring and the end part of the magnetic core, 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 support ring is arranged between the second annular ring and the end part of the magnetic core, third mounting holes are formed in the upper end face and the lower end face of the annular support ring, and the third mounting holes are 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 support 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 the surface of the rotating shaft is provided with a helical blade.
Preferably, the rotating shaft is sleeved with a conical guide cover, and the conical guide cover is arranged at one end, far away from the motor, of the air inlet cover.
Preferably, the annular limiting plates are arranged on the sides, away from the magnetic core, of the annular supporting rings, first mounting holes are formed in the inner surfaces of the annular limiting plates, the first mounting holes are sleeved on the connecting columns, the edges of the annular limiting plates extend to the outer sides of the magnetic core, and second mounting holes are formed in the outer edges of the annular limiting plates;
a sealing cover is arranged between the edges of the two annular limiting plates, the magnetic core is positioned in the sealing cover, sixth mounting holes are formed in the upper end and the lower end of the sealing cover, and the second mounting holes and the sixth mounting holes are fastened through screws;
two second circulating channels are symmetrically arranged on the side surface of the sealing cover, and exhaust fans are arranged in the second circulating 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 in threaded connection with fastening nuts.
Compared with the prior art, when the cooling device is used, the inside of the magnetic core can be rapidly cooled through the air blowing structures arranged at the two ends of the magnetic core, and the air blowing operation is performed around the magnetic core, so that the outer surface of the magnetic core can be cooled.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a high-frequency transformer high-inductance and high-permeability ferrite core with high heat dissipation efficiency according to the present invention.
Fig. 2 is a schematic structural diagram of a high-frequency transformer high-inductance and high-permeability ferrite core with high heat dissipation efficiency according to the present invention.
In the figure: magnetic core 1, flabellum 2, motor 3, spliced pole 4, first mounting hole 5, annular limiting plate 6, second mounting hole 7, third mounting hole 8, annular support ring 9, toper guide cover 10, air inlet cover 11, first annular circle 12, fourth mounting hole 13, first circulation passageway 14, motor set casing 15, arc pole 16, second annular circle 17, bar mouth 18, fifth mounting hole 19, sixth mounting hole 20, sealed cowling 21, second circulation passageway 22, pivot 23, helical blade 24, seventh mounting hole 25.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.
Referring to fig. 1-2, the present invention provides a technical solution: a high-frequency variable-voltage high-inductance-value high-permeability ferrite core with high heat dissipation efficiency comprises a magnetic core 1, wherein fifth mounting holes 19 are formed in two ends of the magnetic core 1 respectively, the fifth mounting holes 19 are through holes, the central axis of each fifth mounting hole 19 is parallel to the central axis of the magnetic core 1, and each fifth mounting hole 19 is internally provided with a connecting column 4;
magnetic core 1's cross section is the loop configuration, 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 at 1 tip of magnetic core, middle part position at every second annular ring 17 all is equipped with motor set casing 15, all link to each other through a plurality of arc poles 16 between motor set casing 15's side and the first annular ring 12, all install motor 3 in the motor set casing 15, two motor 3 set up relatively, install flabellum 2 in motor 3's the pivot, one of them structure of blowing is towards 1 inside bloies of magnetic core, another structure of blowing is towards 1 outside air exhaust of magnetic core, fourth mounting hole 13 has been seted up on the surface of first annular ring 12, fourth mounting hole 13 overlaps on spliced pole 4.
Specifically, when the magnetic core is used, the two blowing structures start to operate simultaneously, so that heat in the magnetic core is rapidly discharged, and the heat of the magnetic core is reduced.
Furthermore, one side of the first annular ring 12, which is far away from the magnetic core 1, is coaxially connected to a first circulation channel 14, a dust screen is mounted at the end of each first circulation channel 14, and the first circulation channel 14 can guide airflow discharged by the fan blades.
Further, a second annular ring 17 is arranged between the first annular ring 12 and the end 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 support ring 9 is arranged between the second annular ring 17 and the end of the magnetic core 1, third mounting holes 8 are formed in the upper end face and the lower end face of the annular support ring 9, and the third mounting holes 8 are 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 support 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 lower motor 3, the rotating shaft 23 extends into the magnetic core 1 from the center of the air inlet cover 11, and a helical blade 24 is arranged on the surface of the rotating shaft 23.
Specifically, after the fan blades rotate to blow air, the air flow can directly blow on the air inlet cover 11, the air inlet cover 11 can gather 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 installed at one end, away from the motor 3, of the air inlet cover 11, and the conical guide cover 10 is used for guiding the air flow to the inner surface of the magnetic core.
Further, one side of the annular support ring 9, which is 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, sixth mounting holes 20 are formed in the upper end and the lower end of the sealing cover 21, 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 surface of the sealing cover 21, and exhaust fans are arranged in the second circulation channels 22.
Specifically, two exhaust fans can blow away the heat of coil surface after opening for the inside and outside surface of magnetic core all obtains effectual cooling.
Further, dust screens are installed at the ends of the second circulation passages 22.
Further, the annular support ring 9 is made of an insulating material.
Furthermore, both ends of the connecting column 4 are in threaded connection with fastening nuts.
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. The high-frequency voltage-changing high-inductance-value high-permeability ferrite magnetic core with high heat dissipation efficiency comprises a magnetic core (1), wherein fifth mounting holes (19) are formed in two ends of the magnetic core (1), the fifth mounting holes (19) are through holes, the central axis of each fifth mounting hole (19) is parallel to the central axis of the magnetic core (1), each fifth mounting hole (19) is internally provided with a connecting column (4), the ferrite magnetic core is characterized in that the cross section of the magnetic core (1) is of an annular structure, the upper end and the lower end of the magnetic core (1) are respectively provided with a blowing structure, each blowing structure comprises a second annular ring (17), the second annular rings (17) are superposed on the end parts of the magnetic core (1), a motor fixing shell (15) is arranged in the middle of each second annular ring (17), the side surfaces of the motor fixing shell (15) are connected with the first annular rings (12) through a plurality of arc-shaped rods (16), all install motor (3) in motor set casing (15), two motor (3) set up relatively, install flabellum (2) in the pivot of motor (3), and one of them structure of blowing is inside to blow towards magnetic core (1), and another structure of blowing is discharged air towards magnetic core (1) outside, and fourth mounting hole (13) have been seted up on the surface of first annular circle (12), and fourth mounting hole (13) cover is on spliced pole (4).
2. The ferrite core with high heat dissipation efficiency, high frequency transformation, high inductance and high magnetic conductivity as claimed in claim 1, wherein the first annular ring (12) is coaxially connected to the first circulation channel (14) at a side away from the core (1), and a dust screen is installed at each end of the first circulation channel (14).
3. The ferrite magnetic core with high heat dissipation efficiency, high frequency transformation, high inductance and high magnetic conductivity according to claim 1, characterized in that a second annular ring (17) is arranged between the first annular ring (12) and the end 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 of the magnetic core (1), third mounting holes (8) are formed in the upper and lower end faces of the annular supporting ring (9), and the third mounting holes (8) are sleeved on the connecting column (4);
an air inlet cover (11) with a conical structure is arranged in each second annular ring (17), the air inlet cover (11) is positioned in each annular support 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 a 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 helical blade (24) is arranged on the surface of the rotating shaft (23).
4. The ferrite core with high frequency, voltage variation, high inductance and high magnetic conductivity, which has high heat dissipation efficiency as claimed in claim 3, wherein a conical guide cover (10) is sleeved on the rotating shaft (23), and the conical guide cover (10) is installed at one end of the air inlet cover (11) far away from the motor (3).
5. The ferrite core with high heat dissipation efficiency, high frequency transformation voltage, high inductance and high permeability according to claim 3, characterized in that one side of the annular supporting ring (9) away from the 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 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), sixth mounting holes (20) are formed in the upper end and the lower end of the sealing cover (21), and the second mounting hole (7) and the sixth mounting holes (20) are fastened through screws;
two second circulating channels (22) are symmetrically arranged on the side surface of the sealing cover (21), and exhaust fans are arranged in the second circulating channels (22).
6. The ferrite core with high frequency, voltage variation, high inductance and high magnetic permeability with high heat dissipation efficiency as claimed in claim 5, wherein the dust screen is installed at the end of the second circulation channel (22).
7. The ferrite core with high frequency, voltage variation, high inductance and high magnetic permeability with high heat dissipation efficiency as claimed in claim 5, wherein the annular supporting ring (9) is made of insulating material.
8. The ferrite core with high heat dissipation efficiency, high frequency transformation, high inductance and high magnetic conductivity as claimed in claim 1, wherein both ends of the connection column (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 true CN113539627A (en) | 2021-10-22 |
| CN113539627B CN113539627B (en) | 2024-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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| 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 |
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| 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 |
| 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 |
| WO2020098175A1 (en) * | 2018-11-12 | 2020-05-22 | 中山大洋电机股份有限公司 | Electric motor |
| CN210865816U (en) * | 2019-10-21 | 2020-06-26 | 张果鑫 | Dry-type transformer for electric power engineering |
| 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 |
| 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 |
-
2021
- 2021-07-06 CN CN202110759251.8A patent/CN113539627B/en active Active
Patent Citations (10)
| 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 |
| WO2020098175A1 (en) * | 2018-11-12 | 2020-05-22 | 中山大洋电机股份有限公司 | Electric motor |
| 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 |
| 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 |
| 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 |
| 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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| Publication number | Publication date |
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| CN113539627B (en) | 2024-06-21 |
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