CN217008834U - Low temperature rise magnetic ring inductor - Google Patents
Low temperature rise magnetic ring inductor Download PDFInfo
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- CN217008834U CN217008834U CN202122429740.5U CN202122429740U CN217008834U CN 217008834 U CN217008834 U CN 217008834U CN 202122429740 U CN202122429740 U CN 202122429740U CN 217008834 U CN217008834 U CN 217008834U
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- zinc ferrite
- ferrite magnetic
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Abstract
The utility model relates to a low-temperature-rise magnetic ring inductor which comprises a manganese-zinc ferrite magnetic ring and a plastic frame, wherein two groups of magnetic ring supports are arranged on the plastic frame, the manganese-zinc ferrite magnetic ring is arranged on the two magnetic ring supports, a first coil winding, a second coil winding and a third coil winding are sequentially wound on the lower part of the manganese-zinc ferrite magnetic ring, and an air guide cover positioned in a central cavity of the manganese-zinc ferrite magnetic ring is arranged on the upper part of the plastic frame. The beneficial effects are that: the manganese-zinc ferrite magnetic ring has high magnetic permeability, so that the number of turns of a coil winding can be reduced, and the loss is reduced, thereby achieving the purpose of cooling; an air guide cover is arranged in the central cavity of the manganese-zinc ferrite magnetic ring, air flowing through the central cavity of the manganese-zinc ferrite magnetic ring is guided to the manganese-zinc ferrite magnetic ring by utilizing a guide surface on the guide cover, the air flowing speed of the surfaces of the manganese-zinc ferrite magnetic ring, the first coil winding, the second coil winding and the third coil winding is increased, and the air cooling effect is improved.
Description
Technical Field
The utility model relates to the field of magnetic ring inductors, in particular to a low-temperature-rise magnetic ring inductor.
Background
If the coil temperature of the magnetic ring inductor is high, the magnetic ring inductor is easy to damage, and the coil temperature of the magnetic ring inductor is overhigh, mainly due to two reasons, namely the small wire diameter of the coil and the large resistivity of the coil; on the other hand, the iron core has low magnetic permeability and high loss. In addition, the middle of the magnetic ring is hollow, air directly flows through the middle of the magnetic ring, and heat exchange between the air and the surfaces of the coil and the magnetic ring is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the problems in the prior art and provides a low-temperature-rise magnetic ring inductor.
In order to achieve the technical purpose and achieve the technical effect, the utility model is realized by the following technical scheme:
a low-temperature-rise magnetic ring inductor comprises a circular manganese-zinc ferrite magnetic ring and a plastic frame, wherein two groups of magnetic ring supports which are symmetrical relative to the short axis of the plastic frame are arranged on the plastic frame, the manganese-zinc ferrite magnetic ring is arranged on the two magnetic ring supports, a first coil winding, a second coil winding and a third coil winding are sequentially wound on the lower portion of the manganese-zinc ferrite magnetic ring, three U-shaped clamping grooves are respectively formed in two long edges of the plastic frame, a pin of one coil winding is clamped in each U-shaped clamping groove, and an air guide cover located in a central cavity of the manganese-zinc ferrite magnetic ring is arranged on the upper portion of the plastic frame.
The number of turns of the first coil winding is 3.5 turns, the number of turns of the second coil winding is 2.5 turns, and the number of turns of the third coil winding is 3.5 turns.
Wherein, the surface of the manganese zinc ferrite magnetic ring is coated with an insulating magnetic paint layer.
And the wire diameters of the electronic wires of the first coil winding, the second coil winding and the third coil winding are all 0.35 mm.
The second coil winding is arranged between the two groups of magnetic ring supports, and the first coil winding and the third coil winding are respectively arranged on two sides of the two groups of magnetic ring supports.
The plastic frame comprises two rectangular bottom plates, a first pin hole and a first pin column are arranged on a first long edge of each bottom plate, and the first pin column on one bottom plate is inserted into the first pin hole on the other bottom plate to splice the two bottom plates; an inverted V-shaped frame is arranged at the top end of the second long edge of each bottom plate, two arc-shaped supporting plates are arranged at the lower part of each V-shaped frame, and the supporting plates on the two V-shaped frames are butted to form a magnetic ring support; the top of the V-shaped frame is provided with a guide barrel, the middle part of the outer side of the guide barrel is provided with a conical guide surface, the tail end of the guide barrel is provided with a second pin hole and a second pin, and the second pin on one guide barrel is inserted into the second pin hole on the other guide barrel to splice the two guide barrels to form the air guide sleeve; the supporting plate and the guide barrel are both positioned right above the bottom plate.
And the middle part of the V-shaped frame is provided with a limiting column which is vertical to the V-shaped frame and extends towards the upper part of the bottom plate, and the limiting column is abutted with the end surface of the manganese-zinc ferrite magnetic ring.
The utility model has the beneficial effects that: the manganese-zinc ferrite magnetic ring has high magnetic permeability, so that the number of turns of a coil winding can be reduced, and the loss is reduced, thereby achieving the purpose of cooling; an air guide cover is arranged in the central cavity of the manganese-zinc ferrite magnetic ring, air flowing through the central cavity of the manganese-zinc ferrite magnetic ring is guided to the manganese-zinc ferrite magnetic ring by utilizing a guide surface on the guide cover, the air flowing speed of the surfaces of the manganese-zinc ferrite magnetic ring, the first coil winding, the second coil winding and the third coil winding is increased, and the air cooling effect is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the utility model and do not constitute a limitation of the utility model. In the drawings:
FIG. 1 is a schematic structural diagram of a low temperature rise magnetic loop inductor in front view in an embodiment of the present invention;
FIG. 2 is a schematic diagram of a side view of a low temperature rise magnetic loop inductor according to an embodiment of the present invention;
FIG. 3 is a side view of a plastic frame according to an embodiment of the present invention;
FIG. 4 is a schematic top view of a plastic frame according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a half of a disassembled plastic shelf in an embodiment of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 to 5, a low temperature rise magnetic ring inductor comprises a circular manganese zinc ferrite magnetic ring 1 and a plastic frame 2, wherein the surface of the manganese zinc ferrite magnetic ring 1 is coated with an insulating magnetic paint layer; the magnetic ring support comprises a plastic frame 2, wherein two groups of magnetic ring supports 3 which are symmetrical relative to a short shaft of the plastic frame 2 are arranged on the plastic frame 2, a manganese-zinc ferrite magnetic ring 1 is arranged on the two magnetic ring supports 3, the lower part of the manganese-zinc ferrite magnetic ring 1 is sequentially wound with a first coil winding 4, a second coil winding 5 and a third coil winding 6, the number of turns of the first coil winding 4 is 3.5, the number of turns of the second coil winding 5 is 2.5, the number of turns of the third coil winding 6 is 3.5, the wire diameters of electronic wires of the first coil winding 4, the second coil winding 5 and the third coil winding 6 are 0.35mm, the second coil winding 5 is positioned between the two groups of magnetic ring supports 3, and the first coil winding 4 and the third coil winding 6 are respectively positioned on two sides of the two groups of magnetic ring supports 3; the two long edges of the plastic frame 2 are respectively provided with three U-shaped clamping grooves 7, a pin 8 of a coil winding is clamped in each U-shaped clamping groove 7, the upper part of the plastic frame 2 is provided with an air guide cover 9 positioned in a central cavity of the manganese-zinc ferrite magnetic ring 1, air flowing through the central cavity of the manganese-zinc ferrite magnetic ring 1 is guided onto the manganese-zinc ferrite magnetic ring 1 by the air guide cover, the air flowing speed of the surfaces of the manganese-zinc ferrite magnetic ring 1, the first coil winding 4, the second coil winding 5 and the third coil winding 6 is increased, and the air cooling effect is improved.
In addition, the plastic frame 2 comprises two rectangular bottom plates 10, a first pin hole 11 and a first pin 12 are arranged on a first long edge of each bottom plate 10, and the first pin 12 on one bottom plate 10 is inserted into the first pin hole 11 on the other bottom plate 10 to splice the two bottom plates 10; an inverted V-shaped frame 13 is arranged at the top end of the second long edge of each bottom plate 10, two arc-shaped supporting plates 14 are arranged at the lower part of each V-shaped frame 13, and the supporting plates 14 on the two V-shaped frames 13 are butted to form a magnetic ring support 3; the top of the V-shaped frame 13 is provided with a diversion barrel 15, the middle part of the outer side of the diversion barrel 15 is provided with a conical diversion surface 16, the diversion surface inclines towards the direction of the manganese zinc ferrite magnetic ring from the V-shaped frame, the tail end of the diversion barrel 16 is provided with a second pin hole 17 and a second pin 18, the second pin 18 on one diversion barrel 15 is inserted into the second pin hole 17 on the other diversion barrel 15, so that the two diversion barrels 15 are spliced to form the air diversion cover 9; the supporting plate 14 and the guide barrel 15 are both positioned right above the bottom plate 10; the middle part of the V-shaped frame 13 is provided with a limiting column 19 which is vertical to the V-shaped frame 13 and extends towards the upper part of the bottom plate 10, and the limiting column 19 is abutted with the end surface of the manganese zinc ferrite magnetic ring 1.
When the magnetic ring support is assembled, the three groups of coils are wound on the manganese-zinc ferrite magnetic ring 1 respectively, then the manganese-zinc ferrite magnetic ring 1 is arranged on the magnetic ring support 3, pins of the three groups of coil windings are clamped in the U-shaped clamping grooves 7 respectively, and the manganese-zinc ferrite magnetic ring 1 is fixed on the plastic frame by utilizing the upward supporting force of the magnetic ring support and the downward pulling force of the three groups of coil windings. During installation, pins of the three groups of coils are respectively inserted into corresponding pin holes in the circuit board, the pins are connected with the circuit board in a welding mode, hot melt adhesive is applied to the bottom end or the periphery of the plastic support, the plastic support is fixed on the circuit board, and the installation stability of the magnetic ring inductor is improved.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed.
Claims (7)
1. A low temperature rise magnetic ring inductor is characterized in that: the magnetic ring support structure comprises a circular manganese-zinc ferrite magnetic ring and a plastic frame, wherein two groups of magnetic ring supports which are symmetrical relative to a short shaft of the plastic frame are arranged on the plastic frame, the manganese-zinc ferrite magnetic ring is arranged on the two magnetic ring supports, a first coil winding, a second coil winding and a third coil winding are sequentially wound on the lower portion of the manganese-zinc ferrite magnetic ring, three U-shaped clamping grooves are respectively formed in two long edges of the plastic frame, a pin of one coil winding is clamped in each U-shaped clamping groove, and an air guide cover which is located in a central cavity of the manganese-zinc ferrite magnetic ring is arranged on the upper portion of the plastic frame.
2. The low temperature rise magnetic loop inductor of claim 1, wherein: the number of turns of the first coil winding is 3.5, the number of turns of the second coil winding is 2.5, and the number of turns of the third coil winding is 3.5.
3. The low temperature rise magnetic loop inductor of claim 1, wherein: and the surface of the manganese-zinc ferrite magnetic ring is coated with an insulating magnetic paint layer.
4. The low temperature rise magnetic loop inductor of claim 1, wherein: and the wire diameters of the electronic wires of the first coil winding, the second coil winding and the third coil winding are all 0.35 mm.
5. The low temperature rise magnetic loop inductor of claim 1, wherein: the second coil winding is arranged between the two groups of magnetic ring supports, and the first coil winding and the third coil winding are respectively arranged on two sides of the two groups of magnetic ring supports.
6. The low temperature rise magnetic loop inductor of claim 1, wherein: the plastic frame comprises two rectangular bottom plates, a first pin hole and a first pin column are arranged on a first long edge of each bottom plate, and the first pin column on one bottom plate is inserted into the first pin hole on the other bottom plate to splice the two bottom plates; an inverted V-shaped frame is arranged at the top end of the second long edge of each bottom plate, two arc-shaped supporting plates are arranged at the lower part of each V-shaped frame, and the supporting plates on the two V-shaped frames are butted to form a magnetic ring support; the top of the V-shaped frame is provided with a guide barrel, the middle part of the outer side of the guide barrel is provided with a conical guide surface, the tail end of the guide barrel is provided with a second pin hole and a second pin, and the second pin on one guide barrel is inserted into the second pin hole on the other guide barrel to splice the two guide barrels to form the air guide sleeve; the supporting plate and the guide barrel are both positioned right above the bottom plate.
7. The low temperature rise magnetic loop inductor of claim 6, wherein: and the middle part of the V-shaped frame is provided with a limiting column which is perpendicular to the V-shaped frame and extends towards the upper part of the bottom plate, and the limiting column is abutted against the end surface of the manganese-zinc ferrite magnetic ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122429740.5U CN217008834U (en) | 2021-10-09 | 2021-10-09 | Low temperature rise magnetic ring inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122429740.5U CN217008834U (en) | 2021-10-09 | 2021-10-09 | Low temperature rise magnetic ring inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217008834U true CN217008834U (en) | 2022-07-19 |
Family
ID=82379150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122429740.5U Active CN217008834U (en) | 2021-10-09 | 2021-10-09 | Low temperature rise magnetic ring inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217008834U (en) |
-
2021
- 2021-10-09 CN CN202122429740.5U patent/CN217008834U/en active Active
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