CN218447498U - Planar transformer with good insulation performance - Google Patents
Planar transformer with good insulation performance Download PDFInfo
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- CN218447498U CN218447498U CN202222443301.4U CN202222443301U CN218447498U CN 218447498 U CN218447498 U CN 218447498U CN 202222443301 U CN202222443301 U CN 202222443301U CN 218447498 U CN218447498 U CN 218447498U
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Abstract
The utility model discloses a planar transformer with good insulating property, which comprises an insulating base, a magnetic core framework, an insulating top seat, a coil winding and a metal pressing buckle sheet; the coil winding is wound in the magnetic core framework, an insulating top seat is arranged on the top cover of the magnetic core framework, and the insulating base and the insulating top seat are connected in a buckling mode through metal buckling pieces. The coil winding is wound in the magnetic core framework of the utility model, the coil winding is positioned between the insulating base and the insulating top seat, and the insulating base and the insulating top seat are connected by the buckling of the metal pressing buckle piece; the insulating structure has the advantages of good insulating property, convenience in assembly, stable structure and the like.
Description
Technical Field
The utility model relates to a transformer field especially relates to a planar transformer that insulating properties is good.
Background
As switching power supplies are continuously developed toward smaller size, higher power density and higher efficiency, transformers, which are one of the key components in power electronic devices, are inevitably adapted to the development trend, and planar transformers, which are produced under the background, have high power density, and are particularly widely applied to power modules, wherein the planar transformers are formed by arranging windings on magnetic cores.
In the prior art, the insulation of a planar transformer is generally poor, which easily affects the normal operation condition of the transformer, thereby reducing the service life of the transformer and bringing serious economic loss to users; in addition, the structure of traditional planar transformer is too complicated, is unfavorable for holistic assembly, leads to assembly efficiency low, reduces the production efficiency of enterprise.
Accordingly, the prior art is deficient and needs improvement.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the planar transformer has the advantages of reasonable structural design, high assembly efficiency and stable structure and is good in insulating property.
The technical scheme of the utility model as follows: a planar transformer having good insulating properties;
the coil winding device comprises an insulating base, a magnetic core framework, an insulating top seat, a coil winding and a metal pressing buckle sheet; the magnetic core framework is arranged on the insulating base, the coil winding is wound in the magnetic core framework, the top of the magnetic core framework is covered with the insulating top seat, and the insulating base and the insulating top seat are buckled and connected through the metal pressing buckle piece;
the magnetic core framework is of an I-shaped structure and comprises a winding sleeve with a hollow structure, a circular top plate and a circular bottom plate, wherein the circular top plate and the circular bottom plate are respectively arranged at the upper end and the lower end of the winding sleeve;
the insulating base is provided with a first groove matched with the round bottom plate in shape, the first groove is provided with a first positioning column inserted with the bottom of the winding sleeve, the insulating top seat is provided with a second groove matched with the round top plate in shape, and the second groove is provided with a second positioning column inserted with the top of the winding sleeve;
pin bases extend outwards from the front side and the rear side of the circular bottom plate respectively, a plurality of metal pins arranged downwards are arranged on the pin bases, first avoidance grooves communicated with the first grooves are formed in the front side and the rear side of the insulating base respectively, and the pin bases penetrate through the first avoidance grooves;
the left side and the right side of the insulating base are respectively provided with a first clamping groove, the left side and the right side of the insulating top seat are respectively provided with a second clamping groove, and the first clamping groove and the second clamping groove which are positioned on the same side are buckled and connected through a metal pressing buckle piece.
By adopting the technical scheme, in the planar transformer with good insulating property, the metal pressing buckle piece is of an arc-shaped structure, and the head end and the tail end of the metal pressing buckle piece are respectively provided with a buckling part which is buckled and connected with the first clamping groove or the second clamping groove.
By adopting the technical scheme, in the planar transformer with good insulating property, the bottom of the metal pressing buckle piece is also provided with a plurality of grounding pins.
Adopt above-mentioned each technical scheme, planar transformer that insulating properties is good in, both sides are equipped with respectively around the insulating footstock and dodge the groove with the second of second recess intercommunication, both sides are equipped with respectively around the circular roof and dodge the spacing fixture block of groove side wall joint with the second.
By adopting the technical scheme, in the planar transformer with good insulating property, the pin base is provided with the first winding groove convenient for winding.
By adopting the technical scheme, in the planar transformer with good insulating property, the outer side end of the limiting clamping block is provided with the second winding groove convenient for winding.
By adopting the technical scheme, in the planar transformer with good insulating property, the metal pins are linear pins.
By adopting the technical scheme, in the planar transformer with good insulation performance, the length of the metal pin is greater than that of the grounding pin.
By adopting the technical scheme, in the planar transformer with good insulating property, the diameter of the winding sleeve is 20-60 mm.
Compared with the prior art, the coil winding is wound in the magnetic core framework of the utility model and is positioned between the insulating base and the insulating top seat, and the insulating base and the insulating top seat are buckled and connected through the metal pressing buckle piece; the bottom of the metal pressing buckle piece is provided with a grounding pin, so that the insulation protection performance of the planar transformer can be further improved; the insulation structure has the advantages of reasonable structural design, good insulation property, convenience in assembly, good structural stability and the like.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic diagram of the explosion structure of the present invention;
fig. 3 is a schematic diagram of the magnetic core skeleton structure of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inside", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 and 2, a planar transformer with good insulation performance includes an insulation base 1, a magnetic core frame 2, an insulation top base 3, a coil winding 4 and a metal pressing buckle piece 5; the coil winding structure is characterized in that the magnetic core framework 2 is arranged on the insulating base 1, the coil winding 4 is wound in the magnetic core framework 2, the insulating top seat 3 is arranged on the top cover of the magnetic core framework 2, and the insulating base 1 is connected with the insulating top seat 3 in a buckling mode through the metal buckling pieces 5. The coil winding 4 is wound in the magnetic core framework 2, the coil winding 4 is positioned between the insulating base 1 and the insulating top seat 3, the insulating base 1 and the insulating top seat 3 are connected in a buckling mode through the metal buckling pieces 5, and therefore the insulating performance of the planar transformer can be improved and the rapid assembly production of products is facilitated.
As shown in fig. 3, the magnetic core frame 2 is an i-shaped structure, the magnetic core frame 2 includes a winding sleeve 21 with a hollow structure, a circular top plate 22 and a circular bottom plate 23, and the circular top plate 22 and the circular bottom plate 23 are respectively disposed at the upper end and the lower end of the winding sleeve 21;
as shown in fig. 2 and 2, a first groove 11 adapted to the circular bottom plate 23 in shape is formed in the insulating base 1, a first positioning column 12 inserted into the bottom of the winding sleeve 21 is formed in the first groove 11, a second groove adapted to the circular top plate 22 in shape is formed in the insulating top base 3, and a second positioning column 32 inserted into the top of the winding sleeve 21 is formed in the second groove. The coil winding 4 is arranged around the winding sleeve 21, the first groove 11 and the second groove are arranged, the structural stability of the magnetic core framework 2 can be improved, the first positioning column 12 and the second positioning column 32 can be inserted into and connected with the winding sleeve 21, the winding sleeve 21 can be placed to shift due to the arrangement, and the structural stability is good.
Both sides are outwards extended respectively around circular bottom plate 23 have pin base 24, be equipped with a plurality of metal pins 25 that set up down on the pin base 24, both sides are equipped with respectively around insulating base 1 and keep away the groove 13 with the first groove 11 intercommunication first, pin base 24 wears to locate first groove 13 of keeping away. The first avoiding groove 13 is provided to facilitate the leading-out of the pin base 24, and the metal pin 25 can be fixedly connected with a solder joint on the PCB through soldering.
The left and right sides of insulating base 1 is equipped with first draw-in groove 14 respectively, the left and right sides of insulating footstock 3 is equipped with second draw-in groove 33 respectively, is located the homonymy first draw-in groove 14 is connected through 5 locks of metal pressure cramp with second draw-in groove 33. When the insulating base 1 and the insulating top seat 3 are assembled, the clamping parts 51 of the metal pressing buckle pieces 5 are only required to be clamped with the insulating base 1 and the insulating top seat 3 respectively, the assembling stability is good, and the assembling production efficiency of the planar transformer is effectively improved.
As shown in fig. 1 and fig. 2, further, the metal pressing buckle piece 5 is in an arc-shaped structure, and the head and the tail ends of the metal pressing buckle piece 5 are respectively provided with a buckling portion 51 where the first buckling groove 14 or the second buckling groove 33 is buckled.
As shown in fig. 2, further, the bottom of the metal snap 5 is further provided with a plurality of grounding pins 52. The arrangement of the grounding pin 52 can improve the insulation protection performance of the planar transformer.
Further, both sides are equipped with respectively around insulating footstock 3 and dodge the groove 31 with the second of second recess intercommunication, both sides are equipped with respectively around circular roof 22 and dodge the spacing fixture block 221 that the groove 31 side wall was blocked joint with the second. The arrangement of the limiting clamping block 221 can position the insulating top seat 3, facilitates rapid assembly, and can improve the assembly stability of the insulating top seat 3.
Further, a first winding groove 241 for facilitating winding is formed on the pin base 24.
Further, a second winding groove 222 for facilitating winding is formed at the outer end of the limiting clamping block 221.
The first winding groove 241 and the second winding groove 222 are disposed to facilitate the fast leading-out of the outlet end of the coil winding 4.
Further, the metal pins 25 are linear pins.
Further, the length of the metal pin 25 is greater than the length of the ground pin 52.
Further, the diameter of the winding sleeve 21 is 20-60 mm. In this embodiment, the diameter of the winding sleeve 21 is 40mm.
Compared with the prior art, the coil winding is wound in the magnetic core framework of the utility model and is positioned between the insulating base and the insulating top seat, and the insulating base and the insulating top seat are buckled and connected through the metal pressing buckle piece; the bottom of the metal pressing buckle piece is provided with a grounding pin, so that the insulation protection performance of the planar transformer can be further improved; the insulation structure has the advantages of reasonable structural design, good insulation property, convenience in assembly, good structural stability and the like.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The utility model provides a planar transformer that insulating properties is good which characterized in that: the transformer comprises an insulating base, a magnetic core framework, an insulating top seat, a coil winding and a metal pressing buckle sheet; the magnetic core framework is arranged on the insulating base, the coil winding is wound in the magnetic core framework, the top of the magnetic core framework is covered with the insulating top seat, and the insulating base and the insulating top seat are buckled and connected through the metal pressing buckle piece;
the magnetic core framework is of an I-shaped structure and comprises a winding sleeve with a hollow structure, a circular top plate and a circular bottom plate, wherein the circular top plate and the circular bottom plate are respectively arranged at the upper end and the lower end of the winding sleeve;
the insulation base is provided with a first groove matched with the circular bottom plate in shape, the first groove is provided with a first positioning column inserted with the bottom of the winding sleeve, the insulation top seat is provided with a second groove matched with the circular top plate in shape, and the second groove is provided with a second positioning column inserted with the top of the winding sleeve;
pin bases extend outwards from the front side and the rear side of the circular bottom plate respectively, a plurality of metal pins arranged downwards are arranged on the pin bases, first avoidance grooves communicated with the first grooves are formed in the front side and the rear side of the insulating base respectively, and the pin bases penetrate through the first avoidance grooves;
the left side and the right side of the insulating base are respectively provided with a first clamping groove, the left side and the right side of the insulating top seat are respectively provided with a second clamping groove, and the first clamping groove and the second clamping groove which are positioned on the same side are connected in a buckling mode through metal pressing buckle pieces.
2. The planar transformer with good insulation performance according to claim 1, wherein: the metal pressing buckle piece is of an arc-shaped structure, and the head end and the tail end of the metal pressing buckle piece are respectively provided with a buckling part connected with the first clamping groove or the second clamping groove in a buckling mode.
3. The planar transformer with good insulation performance according to claim 2, wherein: and a plurality of grounding pins are also arranged at the bottom of the metal pressing buckle piece.
4. The planar transformer with good insulation performance according to claim 1, wherein: the front side and the rear side of the insulating top seat are respectively provided with a second avoidance groove communicated with the second groove, and the front side and the rear side of the circular top plate are respectively provided with a limiting clamping block clamped with the side wall of the second avoidance groove.
5. The planar transformer with good insulation performance according to claim 1, wherein: the pin base is provided with a first winding groove convenient for winding.
6. The planar transformer with good insulation performance according to claim 4, wherein: and a second winding groove convenient for winding is formed in the outer side end of the limiting clamping block.
7. The planar transformer with good insulation performance according to claim 2, wherein: the metal pins are linear pins.
8. The planar transformer with good insulation performance according to claim 3, wherein: the length of the metal pin is greater than that of the grounding pin.
9. The planar transformer with good insulation performance according to claim 1, wherein: the diameter of the winding sleeve is 20-60 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222443301.4U CN218447498U (en) | 2022-09-15 | 2022-09-15 | Planar transformer with good insulation performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222443301.4U CN218447498U (en) | 2022-09-15 | 2022-09-15 | Planar transformer with good insulation performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218447498U true CN218447498U (en) | 2023-02-03 |
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ID=85105639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222443301.4U Active CN218447498U (en) | 2022-09-15 | 2022-09-15 | Planar transformer with good insulation performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218447498U (en) |
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2022
- 2022-09-15 CN CN202222443301.4U patent/CN218447498U/en active Active
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