CN204088003U - The modified node method of a kind of magnetic core and bobbin - Google Patents
The modified node method of a kind of magnetic core and bobbin Download PDFInfo
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- CN204088003U CN204088003U CN201420488331.XU CN201420488331U CN204088003U CN 204088003 U CN204088003 U CN 204088003U CN 201420488331 U CN201420488331 U CN 201420488331U CN 204088003 U CN204088003 U CN 204088003U
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- magnetic core
- bobbin
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- radiation groove
- guiding radiation
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Abstract
The utility model discloses the modified node method of a kind of magnetic core and bobbin, comprise a pair magnetic core, bobbin and coiling group coil, coil winding is in the wire casing of bobbin, the magnetic core center pillar of a pair magnetic core aligns cover and loads in the centre bore of bobbin, magnetic core is provided with ring wall and coiling group coil and bobbin is surrounded, magnetic core ring wall is provided with window, bobbin is protruding at window place pole foot support, in a pair magnetic core, the inner bottom surface of any one or two is provided with flow-guiding radiation groove, window is led in flow-guiding radiation groove one end, the other end leads to magnetic core inside, the clamping plate of any one or both ends of bobbin offer notch with flow-guiding radiation groove corresponding position, this structure is conducive to insulating varnish and penetrates into equably in the gap of inductor or each part of transformer simultaneously, effectively improves insulation property and vibrating noise, is also conducive to the heat radiation of coiling group pitch of the laps internal layer and magnetic core center pillar, improves heat dispersion, the utility model structure is simple, can be widely used among various inductor or transformer.
Description
Technical field
The utility model relates to a kind of magnetic core for inductor or transformer and bobbin, especially relates to the modified node method of magnetic core and bobbin.
Background technology
At present, Split-type inductor common on market or transformer are made up of magnetic core, bobbin and coiling group coil usually, and magnetic core is provided with ring wall and coiling group coil and bobbin is surrounded, to reduce leakage field and to improve shielding properties; In inductor or transformer manufacturing process, usually need to carry out dipping lacquer process to it, namely at winding coil outer wrapping insulating varnish to protect coil, and contribute to whole product after insulating varnish solidification and to bond together increase mechanical strength.In prior art, insulating varnish penetrates in inductor or transformer by the window on magnetic core ring wall, and be stranded wire because coiled wire-wound coil is normally used, such dipping lacquer mode insulating varnish not easily evenly penetrates into coil internal layer and between bobbin and magnetic core, portion inner layer coil can be caused to lack insulating varnish parcel and affect insulation effect, and, because insulating varnish infiltrates not in place, magnetic core, gap is still there is between the parts such as bobbin and coiling group coil, can cause producing low-frequency vibration noise when inductor or transformer work, send noise or utter long and high-pitched sounds.
On the other hand, the heat produced in inductor or transformer work is also not enough to reach good radiating effect by means of only the window that magnetic core ring wall is offered, especially away from inner coil and the magnetic core center pillar of window end.If inductor or transformer run for a long time at relatively high temperatures, the insulating barrier of winding coil can be caused aging and brittle, easily cause coiling group coil turn-to-turn short circuit, time serious, even burn coiling group coil; Meanwhile, the temperature rise of inductor or transformer is too high also can cause magnetic saturation, same situation of easily burning, and affects product useful life.
To sum up, how improving insulation property and the vibrating noise of inductor or transformer, improve its heat dispersion simultaneously, is numerous practitioners problem in the urgent need to address.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides the modified node method of a kind of magnetic core and bobbin.
The utility model solves the technical scheme that its technical problem adopts:
The modified node method of a kind of magnetic core and bobbin, comprise a pair magnetic core, bobbin and coiling group coil, described coiling group coil winding is in the wire casing of described bobbin, the magnetic core center pillar of described a pair magnetic core aligns cover and loads in the centre bore of described bobbin, described magnetic core is provided with ring wall and described coiling group coil and bobbin is surrounded, described magnetic core ring wall is provided with window, described bobbin has pole foot support described window place is protruding, in described a pair magnetic core, the inner bottom surface of any one or two is provided with flow-guiding radiation groove, described window is led in described flow-guiding radiation groove one end, it is inner that the other end leads to described magnetic core, the clamping plate of any one or both ends of described bobbin offer notch with described flow-guiding radiation groove corresponding position.
One end that described flow-guiding radiation groove leads to described magnetic core inside extends to described magnetic core center pillar.
The notch that described bobbin clamping plate are offered extends to the centre bore hole wall of described bobbin.
Described notch end face is provided with locating convex block, and described projection snaps in described flow-guiding radiation groove and described magnetic core and described bobbin located.
The beneficial effects of the utility model are: the utility model inner bottom surface of any one or two in a pair magnetic core is provided with flow-guiding radiation groove, window is led in flow-guiding radiation groove one end, the other end extends to magnetic core inside, clamping plate and the flow-guiding radiation groove corresponding position of any one or both ends of bobbin offer notch, insulating varnish not only can penetrate in inductor or transformer by each window, but also coiling group coil internal layer can be infiltrated by the notch of flow-guiding radiation groove and bobbin and between bobbin and magnetic core, make coil internal layer can realize simultaneously wrap insulate paint equably with outer, thus strengthen the insulating capacity of coiling group coil, maximum protective effect is played to enamel-cover layer, prevent winding interturn short-circuit, and insulating varnish is evenly fully filled in the gap of the parts such as magnetic core, bobbin and coiling group coil, be conducive to insulating varnish after baking-curing, the relative position of fixing each part, send noise or utter long and high-pitched sounds when preventing vibrating noise and work, and contributing to the mechanical strength strengthening whole product.On the other hand, lead to flow-guiding radiation groove and the notch of magnetic core inside, offered new heat radiation channel, be convenient to outwards dispel the heat away from the inner coil of window end and magnetic core center pillar, improve the heat radiation of inductor or inside transformer, be conducive to the useful life ensureing product further.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is STRUCTURE DECOMPOSITION schematic diagram of the present utility model;
Fig. 2 is that entirety of the present utility model is in conjunction with schematic diagram;
Fig. 3 is cross sectional representation of the present utility model;
Fig. 4 is the A-A cutaway view of Fig. 3.
Embodiment
With reference to Fig. 1, Fig. 2, the modified node method of a kind of magnetic core and bobbin, comprise a pair magnetic core 1, bobbin 2 and coiling group coil 3, coiling group coil 3 is wrapped in the wire casing 24 of bobbin 2, the magnetic core center pillar 13 of a pair magnetic core 1 aligns cover and loads in the centre bore 25 of bobbin 2, magnetic core 1 is provided with ring wall 14 and coiling group coil 3 and bobbin 2 is surrounded, magnetic core ring wall 14 is provided with window 11, bobbin 2 has pole foot support 23 window 11 place is protruding, in a pair magnetic core 1, the inner bottom surface of any one or two is provided with flow-guiding radiation groove 12, window 11 is led in flow-guiding radiation groove 12 one end, it is inner that the other end leads to magnetic core 1, the clamping plate 26 of any one or both ends of bobbin 2 offer notch 21 with flow-guiding radiation groove 12 corresponding position.
Inductor of the present utility model or transformer are after completing assembling, need whole product be immersed in insulating varnish, insulating varnish is except respectively holding window 11 to infiltrate inductor or inside transformer from magnetic core 1, coiling group coil 3 internal layer can also be infiltrated by flow-guiding radiation groove 12 and notch 21, the coil internal layer that stranded wire is formed infiltrates insulating varnish with outer can realization simultaneously equably, strengthen the insulating capacity of coiling group coil 3, maximum protective effect is played to enamel-cover layer, prevent winding interturn short-circuit, and flow-guiding radiation groove 12 and notch 21 make insulating varnish can more easily penetrate between magnetic core 1 and bobbin 2, and be uniformly filled in magnetic core 1, in the gap of the parts such as bobbin 2 and coiling group coil 3, be conducive to insulating varnish after baking-curing, whole product is bonded together formed combine firmly overall, prevent from each part from mutually moving when producing low-frequency vibration noise and work send noise or utter long and high-pitched sounds, improve the mechanical strength of product simultaneously.On the other hand, lead to flow-guiding radiation groove 23 and the notch 21 of magnetic core inside, offer new heat radiation channel, be convenient to outwards dispel the heat away from the inner coil of window end and magnetic core center pillar 13, prevent inductor or inside transformer temperature too high, the insulating barrier of coiling group coil 3 is aging and brittle, cause coil 3 turn-to-turn short circuit of coiling group or burn, and can prevent inductor or transformer because of temperature rise too high, there is magnetic saturation and cause the situation of burning, being conducive to the useful life extending product.
As preferred embodiment of the present utility model, with reference to Fig. 3, Fig. 4, one end that flow-guiding radiation groove 12 leads to magnetic core inside extends to magnetic core center pillar 13, and the notch 21 on clamping plate 26 extends to centre bore 25 hole wall of bobbin 2; Said structure makes insulating varnish can directly penetrate between magnetic core center pillar 13 and bobbin centre bore 25, and be uniformly filled in the gap of the parts such as magnetic core 1, bobbin 2 and coiling group coil 3, ensure the infiltration effect of insulating varnish, after making solidification, whole product is bonding tightr, improve vibrating noise, insulation property are more reliable, and make the internal layer of coiling group coil 3 and magnetic core center pillar 13 more directly outwards dispel the heat, whole product reaches better radiating effect simultaneously.
In order to meet the convenience of product each parts assembling and conforming requirement, notch 21 end face is provided with locating convex block 22, projection 22 snaps in flow-guiding radiation groove 12 and magnetic core 1 and bobbin 2 is located, when bobbin 2 is installed to magnetic core 1, notch projection 22 aligns flow-guiding radiation groove 12 and snaps in, and does not need to adjust position again.
The utility model, by simple architecture advances cleverly, effectively can improve insulation property and the vibrating noise of inductor or transformer, improve heat dispersion simultaneously, can be widely used among various inductor or transformer.
Claims (4)
1. the modified node method of a magnetic core and bobbin, comprise a pair magnetic core (1), bobbin (2) and coiling group coil (3), described coiling group coil (3) is wrapped in the wire casing (24) of described bobbin (2), the magnetic core center pillar (13) of described a pair magnetic core (1) aligns cover and loads in the centre bore (25) of described bobbin (2), described magnetic core (1) is provided with ring wall (14) and described coiling group coil (3) and bobbin (2) is surrounded, described magnetic core ring wall (14) is provided with window (11), described bobbin (2) is protruding at described window (11) place pole foot support (23), it is characterized in that: in described a pair magnetic core (1), the inner bottom surface of any one or two is provided with flow-guiding radiation groove (12), described window (11) is led in described flow-guiding radiation groove (12) one end, it is inner that the other end leads to described magnetic core (1), the clamping plate (26) of any one or both ends of described bobbin (2) are upper offers notch (21) with described flow-guiding radiation groove (12) corresponding position.
2. modified node method according to claim 1, is characterized in that: one end that described flow-guiding radiation groove (12) leads to described magnetic core (1) inner extends to described magnetic core center pillar (13).
3. modified node method according to claim 1 and 2, is characterized in that: the notch (21) that the clamping plate (26) of described bobbin are offered extends to centre bore (25) hole wall of described bobbin (2).
4. modified node method according to claim 1 and 2, it is characterized in that: described notch (21) end face is provided with locating convex block (22), described projection (22) snaps in described flow-guiding radiation groove (12) and described magnetic core (1) and described bobbin (2) is located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420488331.XU CN204088003U (en) | 2014-08-27 | 2014-08-27 | The modified node method of a kind of magnetic core and bobbin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420488331.XU CN204088003U (en) | 2014-08-27 | 2014-08-27 | The modified node method of a kind of magnetic core and bobbin |
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| Publication Number | Publication Date |
|---|---|
| CN204088003U true CN204088003U (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420488331.XU Active CN204088003U (en) | 2014-08-27 | 2014-08-27 | The modified node method of a kind of magnetic core and bobbin |
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| Country | Link |
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| CN (1) | CN204088003U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505223A (en) * | 2014-08-27 | 2015-04-08 | 江门市尚品科技研发电子有限公司 | Improved structure of magnetic cores and winding framework |
| CN106449046A (en) * | 2016-09-20 | 2017-02-22 | 深圳威迈斯电源有限公司 | Magnetic element |
-
2014
- 2014-08-27 CN CN201420488331.XU patent/CN204088003U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505223A (en) * | 2014-08-27 | 2015-04-08 | 江门市尚品科技研发电子有限公司 | Improved structure of magnetic cores and winding framework |
| CN104505223B (en) * | 2014-08-27 | 2017-06-20 | 江门市尚品科技研发电子有限公司 | A kind of improved structure of magnetic core and bobbin |
| CN106449046A (en) * | 2016-09-20 | 2017-02-22 | 深圳威迈斯电源有限公司 | Magnetic element |
| CN106449046B (en) * | 2016-09-20 | 2019-01-15 | 深圳威迈斯电源有限公司 | A kind of magnetic element |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |