CN104505223B - A kind of improved structure of magnetic core and bobbin - Google Patents
A kind of improved structure of magnetic core and bobbin Download PDFInfo
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- CN104505223B CN104505223B CN201410428305.2A CN201410428305A CN104505223B CN 104505223 B CN104505223 B CN 104505223B CN 201410428305 A CN201410428305 A CN 201410428305A CN 104505223 B CN104505223 B CN 104505223B
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- bobbin
- magnetic core
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- window
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Abstract
The invention discloses a kind of magnetic core and the improved structure of bobbin, including a pair of magnetic cores, bobbin and coiling group coil, coil is wrapped in the wire casing of bobbin, the magnetic core center pillar of a pair of magnetic cores aligns set and loads in the centre bore of bobbin, magnetic core is provided with ring wall and surrounds coiling group coil and bobbin, magnetic core ring wall is provided with window, bobbin is protruding at window pole foot support, the inner bottom surface of any one or two is provided with flow-guiding radiation groove in a pair of magnetic cores, window is led in flow-guiding radiation groove one end, the other end leads to inside magnetic core, in the either end of bobbin or the clamping plate at two ends notch is offered with flow-guiding radiation groove corresponding position；The structure is conducive to insulated paint while equably penetrating into the gap of inductor or each part of transformer, is effectively improved insulating properties and vibrating noise, is also beneficial to the radiating of coiling group pitch of the laps internal layer and magnetic core center pillar, improves heat dispersion；Simple structure of the present invention, is widely portable to various inductors or transformer.
Description
Technical field
The present invention relates to a kind of for inductor or the magnetic core and bobbin of transformer, more particularly, to magnetic core and coiling
The improved structure of skeleton.
Background technology
At present, the common Split-type inductor of in the market or transformer are generally by magnetic core, bobbin and coiling group coil
Composition, magnetic core is provided with ring wall and surrounds coiling group coil and bobbin, to reduce leakage field and improve shielding properties；In inductance
In device or transformer manufacturing process, it usually needs carry out dipping lacquer treatment to it, i.e., in winding coil outer wrapping insulated paint protecting
Whole product is contributed to bond together increase mechanical strength after coil, and insulated paint solidification.In the prior art, insulated paint is
Penetrated into inductor or transformer by the window on magnetic core ring wall, and due to coiled wire-wound coil it is usually used be multiply twist
Zygonema, such dipping lacquer mode insulated paint is difficult uniformly to penetrate between coil internal layer and bobbin and magnetic core, can cause
Portion inner layer coil lacks insulated paint parcel and influences insulation effect, also, because insulated paint penetrates into not in place, magnetic core, coiling
Gap is still suffered between the part such as skeleton and coiling group coil, produces low-frequency vibration to make an uproar when inductor or transformer can be caused to work
Sound, sends noise or utters long and high-pitched sounds.
On the other hand, the heat that inductor or transformer are produced in working only passes through the window opened up on magnetic core ring wall also not
Good radiating effect is sufficiently achieved, especially the inner coil away from window end and magnetic core center pillar.If inductor or transformation
Device runs at relatively high temperatures for a long time, the insulating barrier of winding coil can be caused aging and embrittlement, easily causes coiling group coil turn
Between short circuit, when serious even burn coiling group coil；Meanwhile, the temperature rise of inductor or transformer is too high to also result in magnetic saturation,
The same situation easily burnt, influences product service life.
To sum up, how to improve the insulating properties and vibrating noise of inductor or transformer, while improving its heat dispersion, be
Numerous practitioners problem in the urgent need to address.
Present invention
In order to overcome the deficiencies in the prior art, the present invention to provide the improved structure of a kind of magnetic core and bobbin.
The technical solution adopted for the present invention to solve the technical problems is：
The improved structure of a kind of magnetic core and bobbin, including a pair of magnetic cores, bobbin and coiling group coils, it is described around
Line group coil is wrapped in the wire casing of the bobbin, and the magnetic core center pillar of the pair of magnetic core aligns set and loads the coiling bone
In the centre bore of frame, the magnetic core is provided with ring wall and surrounds the coiling group coil and bobbin, and the magnetic core ring wall sets
Have window, the bobbin is protruding at the window pole foot support, in the pair of magnetic core any one or two
Individual inner bottom surface is provided with flow-guiding radiation groove, and lead to the window for described flow-guiding radiation groove one end, and the other end leads in the magnetic core
On portion, the either end of the bobbin or the clamping plate at two ends notch is offered with the flow-guiding radiation groove corresponding position.
One end that the flow-guiding radiation groove leads to inside the magnetic core extends to the magnetic core center pillar.
The notch that the bobbin clamping plate is opened up extends to the centre bore hole wall of the bobbin.
The notch end face is provided with locating convex block, the projection snap in the flow-guiding radiation groove by the magnetic core with it is described around
Line framework location.
The beneficial effects of the invention are as follows：Present invention inner bottom surface of any one or two in a pair of magnetic cores is provided with water conservancy diversion and dissipates
Window is led in heat channel, flow-guiding radiation groove one end, and the other end is extended to inside magnetic core, the either end of bobbin or the folder at two ends
Plate offers notch with flow-guiding radiation groove corresponding position, and insulated paint not only can penetrate into inductor or transformer by each window
It is interior, but also coiling group coil internal layer and bobbin and magnetic core can be penetrated into by the notch of flow-guiding radiation groove and bobbin
Between, coil internal layer is realized with outer layer while equably wrapping up insulated paint, so that strengthen the insulating capacity of coiling group coil,
The protective effect of maximum is played to enamel-cover layer, winding interturn short-circuit is prevented；And insulated paint is uniformly sufficient filling with magnetic core, coiling
The gap of the part such as skeleton and coiling group coil, is conducive to after the toasted solidification of insulated paint, fixes the relative position of each part,
Prevent to send noise or utter long and high-pitched sounds when vibrating noise and work, and help to strengthen the mechanical strength of whole product.The opposing party
Face, the flow-guiding radiation groove and notch led to inside magnetic core has opened up new radiating channel, is easy to the inner coil away from window end
Outwards radiated with magnetic core center pillar, improve the radiating of inductor or inside transformer, be conducive to being further ensured that the use of product
Life-span.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is structural decomposition diagram of the invention；
Fig. 2 is entirety combination schematic diagram of the invention；
Fig. 3 is cross-sectional view of the invention；
Fig. 4 is the A-A sectional views of Fig. 3.
Specific embodiment
The improved structure of reference picture 1, Fig. 2, a kind of magnetic core and bobbin, including a pair of magnetic cores 1, bobbin 2 and around
Line group coil 3, coiling group coil 3 is wrapped in the wire casing 24 of bobbin 2, and the magnetic core center pillar 13 of a pair of magnetic cores 1 aligns suit
Enter in the centre bore 25 of bobbin 2, magnetic core 1 is provided with ring wall 14 and surrounds coiling group coil 3 and bobbin 2, magnetic core ring
Wall 14 is provided with window 11, and bobbin 2 is protruding at window 11 pole foot support 23, in a pair of magnetic cores 1 any one or
The inner bottom surface of two is provided with flow-guiding radiation groove 12, and lead to the one end of flow-guiding radiation groove 12 window 11, and the other end leads to inside magnetic core 1,
In the either end of bobbin 2 or the clamping plate 26 at two ends notch 21 is offered with the corresponding position of flow-guiding radiation groove 12.
Inductor of the invention or transformer, need to be in whole product immersion insulated paint after assembling is completed, and insulated paint is removed
Inductor or inside transformer can be penetrated into from each end window of magnetic core 1 mouthful 11, can also by flow-guiding radiation groove 12 and notch 21
The internal layer of coiling group coil 3 is penetrated into, the coil internal layer that stranded wire is constituted is realized with outer layer while equably penetrating into insulation
Paint, strengthens the insulating capacity of coiling group coil 3, and the protective effect of maximum is played to enamel-cover layer, prevents winding interturn short-circuit, and
And flow-guiding radiation groove 12 and notch 21 enable insulated paint more easily to penetrate between magnetic core 1 and bobbin 2, and uniformly fill
In the gap of the parts such as magnetic core 1, bobbin 2 and coiling group coil 3, will entirely be produced after being conducive to the toasted solidification of insulated paint
Product are bonded together into the entirety being firmly combined with, and prevent each part from being sent when mutually moving generation low-frequency vibration noise and work
Noise is uttered long and high-pitched sounds, while improve the mechanical strength of product.On the other hand, the flow-guiding radiation groove 23 and notch for leading to inside magnetic core
21, new radiating channel has been opened up, it is easy to outwards be radiated away from the inner coil and magnetic core center pillar 13 at window end, prevent inductor
Or inside transformer temperature is too high, the insulating barrier of coiling group coil 3 is aging and embrittlement, cause the turn-to-turn short circuit of coiling group coil 3 or
Burn, and inductor or transformer can be prevented because temperature rise is too high, magnetic saturation occur and cause situation about burning, be conducive to extension to produce
The service life of product.
Used as the preferred embodiments of the present invention, reference picture 3, Fig. 4, one end that flow-guiding radiation groove 12 leads to inside magnetic core extends
To magnetic core center pillar 13, the notch 21 on clamping plate 26 extends to the hole wall of centre bore 25 of bobbin 2；Said structure enables insulated paint
Directly penetrate between magnetic core center pillar 13 and bobbin centre bore 25, and be uniformly filled in magnetic core 1, bobbin 2 and coiling
In the gap of the group grade part of coil 3, it is ensured that the infiltration effect of insulated paint, make the bonding of whole product after solidification even closer, change
Kind vibrating noise, insulating properties are relatively reliable, while alloing the internal layer and magnetic core center pillar 13 of coiling group coil 3 more directly
Outwards radiating, whole product reaches more preferable radiating effect.
In order to meet the requirement of the convenience and uniformity of each part assembling of product, the end face of notch 21 is provided with locating convex block
22, projection 22 snaps in flow-guiding radiation groove 12 and magnetic core 1 is positioned with bobbin 2, when bobbin 2 is attached to magnetic core 1, notch
Projection 22 aligns flow-guiding radiation groove 12 and snaps in, it is not necessary to adjustment position again.
The present invention is improved by simple cleverly structure, can be effectively improved insulating properties and the vibration of inductor or transformer
Noise, while improve heat dispersion, is widely portable among various inductors or transformer.
Claims (2)
1. the improved structure of a kind of magnetic core and bobbin, including a pair of magnetic cores (1), bobbin (2) and coiling group coils
(3), the coiling group coil (3) is wrapped in the wire casing (24) of the bobbin (2), the magnetic core of the pair of magnetic core (1)
Center pillar (13) aligns set and loads in the centre bore (25) of the bobbin (2), and the magnetic core (1) is provided with ring wall (14) by institute
State coiling group coil (3) and bobbin (2) is surrounded, the magnetic core ring wall (14) is provided with window (11), the bobbin (2)
There is pole foot support (23) the window (11) place is protruding, it is characterised in that：In the pair of magnetic core (1) any one or
The inner bottom surface of two is to a pair of flow-guiding radiation grooves (12) are provided with, the window is led in described flow-guiding radiation groove (12) one end
(11), the other end leads to the magnetic core (1) inside and extends to magnetic core center pillar (13), the either end of the bobbin (2)
Or corresponding with the pair of flow-guiding radiation groove (12) on the clamping plate (26) at two ends offer notch (21)；The notch
(21) end face is provided with locating convex block (22), and the projection (22) snaps in the flow-guiding radiation groove (12) by the magnetic core (1) and institute
State bobbin (2) positioning.
2. improved structure according to claim 1, it is characterised in that：The notch that the clamping plate (26) of the bobbin is opened up
(21) centre bore (25) hole wall of the bobbin (2) is extended to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410428305.2A CN104505223B (en) | 2014-08-27 | 2014-08-27 | A kind of improved structure of magnetic core and bobbin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410428305.2A CN104505223B (en) | 2014-08-27 | 2014-08-27 | A kind of improved structure of magnetic core and bobbin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104505223A CN104505223A (en) | 2015-04-08 |
| CN104505223B true CN104505223B (en) | 2017-06-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410428305.2A Active CN104505223B (en) | 2014-08-27 | 2014-08-27 | A kind of improved structure of magnetic core and bobbin |
Country Status (1)
| Country | Link |
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| CN (1) | CN104505223B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104917313B (en) * | 2015-06-30 | 2017-11-07 | 湖州南洋电机有限公司 | A kind of motor skeleton for being difficult broken string |
| DE102019126518A1 (en) * | 2019-10-01 | 2021-04-01 | Tdk Electronics Ag | Core component |
| CN114050026B (en) * | 2021-11-30 | 2024-06-11 | 杭州云电科技能源有限公司 | Magnetic assembly, manufacturing method thereof, power module and switching power supply |
| CN114937549B (en) * | 2022-05-23 | 2024-04-23 | 江苏英飞源智慧能源有限公司 | Common mode inductance |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7061358B1 (en) * | 2005-09-12 | 2006-06-13 | Sen-Tai Yang | Structure of inductance core and wire frame |
| CN101699584A (en) * | 2009-10-27 | 2010-04-28 | 鞠万金 | electronic transformer |
| CN201829330U (en) * | 2010-11-01 | 2011-05-11 | 江苏利通电子有限公司 | Combined super-thin transformer applied to LED |
| CN202996517U (en) * | 2012-12-24 | 2013-06-12 | 海宁凌通光伏科技有限公司 | Special-shaped magnetic core of transformer |
| CN204088003U (en) * | 2014-08-27 | 2015-01-07 | 江门市尚品科技研发电子有限公司 | The modified node method of a kind of magnetic core and bobbin |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM286987U (en) * | 2005-09-30 | 2006-02-01 | Leader Electronics Inc | Transformer |
-
2014
- 2014-08-27 CN CN201410428305.2A patent/CN104505223B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7061358B1 (en) * | 2005-09-12 | 2006-06-13 | Sen-Tai Yang | Structure of inductance core and wire frame |
| CN101699584A (en) * | 2009-10-27 | 2010-04-28 | 鞠万金 | electronic transformer |
| CN201829330U (en) * | 2010-11-01 | 2011-05-11 | 江苏利通电子有限公司 | Combined super-thin transformer applied to LED |
| CN202996517U (en) * | 2012-12-24 | 2013-06-12 | 海宁凌通光伏科技有限公司 | Special-shaped magnetic core of transformer |
| CN204088003U (en) * | 2014-08-27 | 2015-01-07 | 江门市尚品科技研发电子有限公司 | The modified node method of a kind of magnetic core and bobbin |
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| Publication number | Publication date |
|---|---|
| CN104505223A (en) | 2015-04-08 |
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