CN207663910U - A kind of transformer integrated encapsulation structure - Google Patents
A kind of transformer integrated encapsulation structure Download PDFInfo
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- CN207663910U CN207663910U CN201721520028.3U CN201721520028U CN207663910U CN 207663910 U CN207663910 U CN 207663910U CN 201721520028 U CN201721520028 U CN 201721520028U CN 207663910 U CN207663910 U CN 207663910U
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- winding
- coiling
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- bobbin
- copper foil
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Abstract
The utility model discloses a kind of transformer integrated encapsulation structure, including magnetic core, winding bobbin, winding, two rows of pins, the magnetic core is plugged in the center of winding bobbin, the winding is wound in the periphery of winding bobbin, two rows of pins are integrated produced by insert molding structure with winding bobbin, the winding has 5 groups, sets external copper foil layer in two layers of adjacent winding at least in；And, the finished product periphery being made of magnetic core, winding bobbin, winding, two rows of pins coats two layers of first insulating layers, again along the one external copper foil layer of circle of direction of winding cladding, finally two circle second insulating layers are coated again in the outside of external copper foil layer, in this way, achieving the effect that compact-sized, anti-interference enhancing.
Description
Technical field
The utility model is related to field transformer technologies, refer in particular to a kind of transformer integrated encapsulation structure.
Background technology
High frequency transformer is the power transformer that working frequency is more than intermediate frequency, is mainly used for making high frequency in high frequency switch power
Switching mode power supply transformer is also useful for making high frequency inverter transformer in high frequency inverter and Inverter Welder, high
Frequency power transformer is as the most important core component of Switching Power Supply, and magnetic core is usually fixed on skeleton by existing high frequency transformer
On, with enameled wire by each primary, secondary and feedback coil winding technique on skeleton, then again on the outside with insulating tape packet
Form, the high frequency transformer creepage distance of this structure is smaller, and leakage inductance is big, and efficiency is low, anti-interference ability is low, shield effectiveness not
Good, radiation is greatly, EMI tests are bad passes through.
Utility model content
In view of this, the utility model is in view of the existing deficiencies of the prior art, main purpose is to provide a kind of transformer
Integrated encapsulation structure, compact-sized, shielding and strong interference immunity, to overcome the deficiencies in the prior art.
To achieve the above object, the utility model is using following technical solution：
A kind of transformer integrated encapsulation structure, including magnetic core, winding bobbin, winding, two rows of pins, the magnetic core are plugged in
The center of winding bobbin, the winding are wound in the periphery of winding bobbin, and two rows of pins are integrated produced by insert molding with winding bobbin
Structure,
First row pin has PIN1, PIN2, PIN3, PIN4, PIN5 totally 5 feet, second row pin have PIN6,
PIN7, PIN8, PIN9, PIN10, wherein wherein, PIN8 feet are NC feet, and PIN9 feet are shielding foot；
The winding includes the first winding, the second winding, the tertiary winding, the 4th winding, the 5th winding, first winding
Coiling encloses around 70 in the first layer of winding bobbin since PIN5, ends at PIN2；The coiling of second winding is opened from PIN4
Begin, is enclosed around 11 in the second layer of winding bobbin, end at PIN3；The coiling of the tertiary winding is since PIN4, in winding bobbin
The second layer around 11.5 circle, end at PIN8；The coiling of 4th winding since PIN6, winding bobbin third layer around 9
Circle, ends at PIN7；The coiling of 5th winding encloses around 35 in the layer 5 of winding bobbin since PIN2, ends at PIN1；
The 4th layer of the winding bobbin is built-in copper foil layer；
The finished product periphery being made of magnetic core, winding bobbin, winding, two rows of pins coats two layers of first insulating layers, then
Along the one external copper foil layer of circle of direction of winding cladding, and, the outside of the external copper foil layer coats two circle second insulating layers again.
As a preferred embodiment, the coiling of first winding is single line, and line footpath is Ф 0.18mm.
As a preferred embodiment, the coiling of second winding is single line, and line footpath is Ф 0.18mm.
As a preferred embodiment, the coiling of the tertiary winding is two-wire, and line footpath is Ф 0.18mm.
As a preferred embodiment, the coiling of the 4th winding is single line, and line footpath is Ф 0.6mm.
As a preferred embodiment, the coiling of the 5th winding is single line, and line footpath is Ф 0.18mm.
As a preferred embodiment, the size of the built-in copper foil layer is 6mm*8cm, and coiling one is enclosed, the built-in copper foil layer
Bottom surface be equipped with self-adhesive glue layer.
The utility model has clear advantage and advantageous effect compared with prior art, specifically, by above-mentioned technology
Scheme is it is found that it is mainly internally provided with built-in copper foil layer in the winding of transformer, and in the periphery of finished product, cladding covers external copper
Layers of foil can improve shielding and interference free performance.
More clearly to illustrate the structure feature and effect of the utility model, come below in conjunction with the accompanying drawings with specific embodiment pair
The utility model is described in detail.
Description of the drawings
Fig. 1 is the finished product front view of the embodiment of the utility model.
Fig. 2 is the finished product left view of the embodiment of the utility model.
Fig. 3 is the internal structure sectional view of the embodiment of the utility model.
Fig. 4 is the equivalent circuit diagram of the embodiment of the utility model.
Description of drawing identification：
10, magnetic core 20, winding bobbin
30, winding 31, the first winding
32, the second winding 33, the tertiary winding
34, the 4th winding 35, the 5th winding
40, two rows of pins 51, built-in copper foil layer
52, the first insulating layer 53, external copper foil layer
54, second insulating layer.
Specific implementation mode
Please refer to figs. 1 to 4, that show the concrete structures of the preferred embodiment of the utility model, are a kind of
Transformer integrated encapsulation structure, including magnetic core 10, winding bobbin 20, winding 30, two rows of pin 40, the magnetic core 10 be plugged in around
The center of line skeleton 20, the winding 30 are wound in the periphery of winding bobbin 20, and two rows of pins 40 are integrated with winding bobbin 20
Produced by insert molding structure.
Wherein, with PIN1, PIN2, PIN3, PIN4, PIN5, totally 5 feet, second row pin have first row pin
PIN6, PIN7, PIN8, PIN9, PIN10, wherein wherein, PIN8 feet are NC feet, and PIN9 feet are shielding foot.
The winding 30 includes the first winding 31, the second winding 32, the tertiary winding 33, the 4th winding 34, the 5th winding 35.
The coiling of first winding 31 is single line, and line footpath is Ф 0.18mm, and the coiling of first winding 31 is since PIN5, in coiling
The first layer of skeleton 20 ends at PIN2 around 70 circles.The coiling of second winding 32 is single line, and line footpath is Ф 0.18mm, should
The coiling of second winding 32 encloses around 11 in the second layer of winding bobbin 20 since PIN4, ends at PIN3.The tertiary winding
33 coiling is two-wire, and line footpath is Ф 0.18mm, and the coiling of the tertiary winding 33 is since PIN4, the second of winding bobbin 20
Layer ends at PIN8 around 11.5 circles.The coiling of 4th winding 34 is single line, and line footpath is Ф 0.6mm, the 4th winding 34
Coiling encloses around 9 in the third layer of winding bobbin 20 since PIN6, ends at PIN7.The coiling of 5th winding 35 is single
Line, line footpath are Ф 0.18mm, and the coiling of the 5th winding 35 is enclosed in the layer 5 of winding bobbin 20 around 35, knot since PIN2
Beam is in PIN1.
Anti- between enhancing inside transformer, and between internal and outside dry scratches performance.The winding bobbin 20
The 4th layer be built-in copper foil layer 51.The size of the built-in copper foil layer 51 is 6mm*8cm, and coiling one is enclosed, the built-in copper foil layer
51 bottom surface is equipped with self-adhesive glue layer.And the finished product being made of magnetic core 10, winding bobbin 20, winding 30, two rows of pins 40 4
Periphery coats two layers of first insulating layers 52, then along the one external copper foil layer 53 of circle of direction of winding cladding, and, the external copper foil layer 53
Outside coat two circle second insulating layers 54 again.Finally, by finished product vacuum impregnation varnish, in so that varnish is penetrated into winding 30 most
Layer.
In conclusion the design focal point of the utility model is, mainly it is internally provided in the winding 30 of transformer
Built-in copper foil layer 51, in the periphery of finished product, cladding covers external copper foil layer 53, can improve shielding and interference free performance.
The above descriptions are merely preferred embodiments of the present invention, not makees to the technical scope of the utility model
Any restrictions, therefore any trickle amendment made by the above technical examples according to the technical essence of the present invention, equivalent change
Change and modify, is still within the scope of the technical solutions of the present invention.
Claims (7)
1. a kind of transformer integrated encapsulation structure, including magnetic core（10）, winding bobbin（20）, winding（30）, two rows of pin（40）,
The magnetic core is plugged in the center of winding bobbin, and the winding is wound in the periphery of winding bobbin, two rows of pins and winding bobbin
It is integrated produced by insert molding structure, it is characterised in that：
First row pin has PIN1, PIN2, PIN3, PIN4, PIN5 totally 5 feet, second row pin have PIN6, PIN7,
PIN8, PIN9, PIN10, wherein wherein, PIN8 feet are NC feet, and PIN9 feet are shielding foot；
The winding（30）Including the first winding（31）, the second winding（32）, the tertiary winding（33）, the 4th winding（34）, the 5th
Winding（35）, first winding（31）Coiling since PIN5, winding bobbin first layer around 70 circle, end at PIN2；
Second winding（32）Coiling since PIN4, winding bobbin the second layer around 11 circle, end at PIN3；The tertiary winding
（33）Coiling since PIN4, winding bobbin the second layer around 11.5 circle, end at PIN8；4th winding（34）Around
Line encloses around 9 in the third layer of winding bobbin since PIN6, ends at PIN7；5th winding（35）Coiling opened from PIN2
Begin, is enclosed around 35 in the layer 5 of winding bobbin, end at PIN1；The 4th layer of the winding bobbin is built-in copper foil layer（51）；
By magnetic core（10）, winding bobbin（20）, winding（30）, two rows of pin（40）The finished product peripheries of four compositions coat two layers the
One insulating layer（52）, then along the one external copper foil layer of circle of direction of winding cladding（53）, and, the outside of the external copper foil layer coats again
Two circle second insulating layers（54）.
2. a kind of transformer integrated encapsulation structure according to claim 1, it is characterised in that：First winding（31）'s
Coiling is single line, and line footpath is Ф 0.18mm.
3. a kind of transformer integrated encapsulation structure according to claim 1, it is characterised in that：Second winding（32）'s
Coiling is single line, and line footpath is Ф 0.18mm.
4. a kind of transformer integrated encapsulation structure according to claim 1, it is characterised in that：The tertiary winding（33）'s
Coiling is two-wire, and line footpath is Ф 0.18mm.
5. a kind of transformer integrated encapsulation structure according to claim 1, it is characterised in that：4th winding（34）'s
Coiling is single line, and line footpath is Ф 0.6mm.
6. a kind of transformer integrated encapsulation structure according to claim 1, it is characterised in that：5th winding（35）'s
Coiling is single line, and line footpath is Ф 0.18mm.
7. a kind of transformer integrated encapsulation structure according to claim 1, it is characterised in that：The built-in copper foil layer（51）
Size be 6mm*8cm, coiling one is enclosed, and the bottom surface of the built-in copper foil layer is equipped with self-adhesive glue layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721520028.3U CN207663910U (en) | 2017-11-15 | 2017-11-15 | A kind of transformer integrated encapsulation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721520028.3U CN207663910U (en) | 2017-11-15 | 2017-11-15 | A kind of transformer integrated encapsulation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207663910U true CN207663910U (en) | 2018-07-27 |
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ID=62938231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721520028.3U Active CN207663910U (en) | 2017-11-15 | 2017-11-15 | A kind of transformer integrated encapsulation structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN207663910U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111755234A (en) * | 2019-03-28 | 2020-10-09 | 东莞市爱德光设计有限公司 | Method for welding copper foil of outer ring of transformer without penetrating insulation layer by melting |
| CN115424834A (en) * | 2022-11-04 | 2022-12-02 | 成都双星变压器有限公司 | Transformer low-voltage winding structure and winding equipment thereof |
-
2017
- 2017-11-15 CN CN201721520028.3U patent/CN207663910U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111755234A (en) * | 2019-03-28 | 2020-10-09 | 东莞市爱德光设计有限公司 | Method for welding copper foil of outer ring of transformer without penetrating insulation layer by melting |
| CN115424834A (en) * | 2022-11-04 | 2022-12-02 | 成都双星变压器有限公司 | Transformer low-voltage winding structure and winding equipment thereof |
| CN115424834B (en) * | 2022-11-04 | 2023-03-14 | 成都双星变压器有限公司 | Transformer low-voltage winding structure and winding equipment thereof |
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