CN203218058U - Inductor - Google Patents

Inductor Download PDF

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Publication number
CN203218058U
CN203218058U CN 201320133480 CN201320133480U CN203218058U CN 203218058 U CN203218058 U CN 203218058U CN 201320133480 CN201320133480 CN 201320133480 CN 201320133480 U CN201320133480 U CN 201320133480U CN 203218058 U CN203218058 U CN 203218058U
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China
Prior art keywords
copper foil
magnetic core
foil coil
inductor
insulating barrier
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CN 201320133480
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Chinese (zh)
Inventor
周勇
谢光元
何冬梅
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Shenzhen University
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Shenzhen University
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Abstract

The utility model provides an inductor. The inductor comprises a first magnetic core, a first copper foil coil, a second copper foil coil and an insulation layer, wherein a long magnetic core post and two short magnetic core posts are arranged on the first magnetic core; the short magnetic core posts are arranged opposite to the long magnetic core post; the heights of the short magnetic core posts and the long magnetic core post are the same; the first copper foil coil is used for coiling the long magnetic core post; the second copper foil coil is used for coiling the short magnetic core posts; and the insulation layer is used for separating the first magnetic core from the first copper foil coil and the second copper foil coil. According to the inductor provided by the utility model, the magnetic core is designed as one long magnetic core post and the two magnetic core posts which are integrated, so that not only can the cross area of the magnetic core be effectively improved, but also the space use ratio is increased and the power of the inductor is improved. The heat radiation surface areas of the coils are increased through flat structures of the copper foil coils in a manner that the copper foil coils formed by coiling copper foil sheets are coiled on the magnetic core, so as to improve the heat radiation function inside the inductor. According to the inductor provided by the utility model, the problems of power increase, space use ratio and heat radiation can be effectively solved.

Description

A kind of inductor
Technical field
The utility model relates to the electronic devices and components field, relates in particular to a kind of inductor. ?
Background technology
Inductor is switch power supply system a kind of important electromagnetic component commonly used, and dress is installed on the pcb board usually.In switch power supply system inductor being required is not only to have high requirements aspect the electric parameter, and problems such as its volume, power and heat radiation also there is requirement, with regard to present mounting means and material, when requiring limited space should satisfy volume, power to satisfy problem such as heat radiation again, just there is technological deficiency.Present solution, on pcb board, increase fin exactly or externally increase heat abstractor, perhaps the volume of the inductor that arranges in the line is big or set several inductance and be listed in, how existence goes to rationalize the problem of machine board space like this, and above scheme has not only increased material cost, has also additionally increased the artificial cost.
Therefore, prior art has yet to be improved and developed.
The utility model content
In view of the deficiencies in the prior art, the utility model purpose is to provide a kind of inductor, is intended to overcome the problem that the power that improves inductor in the prior art in limited space can increase heat radiation again, and the technical solution of the utility model is as follows:
A kind of inductor is applicable to be installed on the pcb board, and wherein, described inductor comprises:
One copper sheet, first magnetic core, the first Copper Foil coil, the second Copper Foil coil, first insulating barrier and second insulating barrier;
Described copper sheet is positioned at the bottom of inductor, and its underpart is rectangle, and the edge is provided with E type breach, terminal adaptive the linking to each other of described E type breach and the described first Copper Foil coil; Described first magnetic core is arranged on described copper sheet inside, is provided with first insulating barrier that both are isolated between described copper sheet and described first magnetic core; Described first magnetic core comprises that the upper end is made up of a long core post and two short core post, between described long core post and two short core post a T type groove is arranged, described long core post is positioned at the top of T type groove, two short core post are positioned at the left and right sides of T type groove, described long core post is identical with the height of two short core post, and the bottom of described first magnetic core is a cuboid;
The described first Copper Foil coil is wound on the described long core post; The number of the described second Copper Foil coil is two, and is wound on respectively on described two short core post; The described first Copper Foil coil and the second Copper Foil coil are flat; The end of the described second Copper Foil coil is connected with pcb board; Between described first magnetic core, the first Copper Foil coil and the described second Copper Foil coil, be provided with for second insulating barrier of isolating, in addition, between the first Copper Foil coil and the second Copper Foil coil and between two second Copper Foil coils, be provided with for the 3rd insulating barrier of isolating.
Described inductor, wherein, it also comprises second magnetic core, it is shaped as a cuboid, is arranged on the top of described first magnetic core, is provided with epoxy plate and the polyester film of balance magnetic core effect between itself and described first magnetic core.
Described inductor wherein, also comprises be used to being wrapped on the described second magnetic core surface its 4th insulating barrier that is isolated from the outside.
Described inductor, wherein, described first magnetic core, second magnetic core, first insulating barrier, second insulating barrier, the 3rd insulating barrier, the 4th insulating barrier, the first Copper Foil coil, the second Copper Foil coil and copper sheet are appointed between the two and are fixed by a glue.
Described inductor, wherein, the described second Copper Foil coil is formed by thick 0.88mm, wide 5.0mm sheet Copper Foil coiled 3 circles, and the described first Copper Foil coil is that 0.8mm, wide 1 circle sheet Copper Foil coiling for 15.5mm form by thickness.
The beneficial effects of the utility model: the utility model is set to long core post and two short core post conjoined structures by the shape of magnetic core, has increased the sectional area of magnetic core, and what effectively reduced to install when having increased inductor power takes up room.Use copper foil to turn to the Copper Foil coil and be wrapped in the magnetic core surface, because it is flat, than using copper coil to dispel the heat, can effectively improve inductor internal heat dissipating problem. ?
Description of drawings
Fig. 1 is a kind of inductor surface structure of the utility model schematic diagram.
Fig. 2 is a kind of bank of inductors assembling structure of the utility model schematic diagram.
Fig. 3 is the structural representation of copper sheet in a kind of inductor of the utility model.
Fig. 4 is the structural representation of first magnetic core in a kind of inductor of the utility model.
Fig. 5 is the structural representation of the first Copper Foil coil in a kind of inductor of the utility model.
Fig. 6 is one of them structural representation of a kind of inductor second Copper Foil coil of the utility model.
Fig. 7 is the structural representation of second magnetic core in a kind of inductor of the utility model.
The surface structure schematic diagram of a kind of transformer that Fig. 8 provides for the utility model.
The structural representation of Copper Foil coil in a kind of transformer that Fig. 9 provides for the utility model.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, clear and definite, below further describe with reference to the accompanying drawing the utility model of embodiment that develops simultaneously.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Be illustrated in figure 1 as the surface structure schematic diagram of a kind of inductor that the utility model provides, it is by main body first magnetic core 1 that produces inductance, be arranged on first magnetic core, 1 bottom with the suitable copper sheet 8 of first magnetic core 1, being arranged on is used on first magnetic core, 1 surface reeling wraps up the first Copper Foil coil 5 and the second Copper Foil coil 6 of first magnetic core, be arranged on first magnetic core, 1 top, be used for covering second magnetic core 14 of first magnetic core, 1 top open surface, be arranged on the epoxy plate 9 that plays balanced action between first magnetic core 1 and second magnetic core 14, and comprise the 3rd insulating material 12 between the first Copper Foil coil 5 and the second Copper Foil coil 6 and be arranged on the 3rd insulating barrier of the 4th insulating material 11 between two second Copper Foil coils 6.
The package assembly schematic diagram of a kind of inductor that provides below in conjunction with as shown in Figure 2 the utility model is made detailed narration to the structure of the inductor that the utility model provides.
As shown in Figure 2, described inductor its by forming with the lower part:
Described copper sheet 8 is positioned at the bottom of inductor, and in conjunction with shown in Figure 3, described copper sheet its underpart is rectangle, and its edge is provided with E type breach, terminal adaptive the linking to each other of this breach and the described first Copper Foil coil 5.
Described first magnetic core 1 is placed on described copper sheet 8 inside, is provided with first insulating barrier 7 that both are isolated between described copper sheet and described first magnetic core 1; In concrete application, described first insulating barrier 7 uses insulation and the good U.S. paper bag of promise of permeability to wrap up in the bottom of first magnetic core, places it in the copper sheet then.
In conjunction with shown in Figure 4, the upper end of described first magnetic core 1 is made up of a long core post 112 and two short magnetic core 111 posts, between described long core post 112 and two short core post 111 a T type groove is arranged, described long core post is positioned at the top of T type groove, two short core post are positioned at the left and right sides of T type groove, described long core post is identical with the height of two short core post, the bottom of described first magnetic core is a cuboid, concrete, two short magnetic cores 111 are positioned at same row, between the two for a groove is arranged, two short core post 111 and long core post 112 corresponding settings, between described long core post 112 and two short magnetic cores 111 groove is arranged, above-mentioned three is highly identical.
Described first magnetic core 1 is provided with the described first Copper Foil coil 5 that is wound on described long core post 112 and two the corresponding described second Copper Foil coil 6 that is wound on described two short core post 111 respectively; Be illustrated in figure 5 as one of them schematic diagram of two second Copper Foil coils, the described first Copper Foil coil 5 and the second Copper Foil coil 6 are flat.
Concrete, in conjunction with shown in Figure 5, the described first Copper Foil coil is 0.8mm by thickness, wide 1 circle sheet Copper Foil coiling for 15.5mm forms.The terminal pin of one of them of this Copper Foil coil links to each other with pcb board, and a terminal pin links to each other with the second Copper Foil coil 6 in addition.As shown in Figure 6, this second Copper Foil coil 6 is that the 3 circle sheet Copper Foil coilings of the wide 5.0mm of 0.8mm form for thickness.The described second Copper Foil coil, 6 ends are connected with pcb board.
Because the described first Copper Foil coil 5 and the second Copper Foil coil 6 are for using the coiling of sheet Copper Foil, therefore it is flat, has increased the surface of conductive coil, and the Copper Foil that uses conducts electricity very well, easily heat radiation, therefore it is easier to heat radiation than traditional conductive coil in same installing space.
Be provided with between described first magnetic core 1 and the described first Copper Foil coil 5 and the second Copper Foil coil 6 for described second insulating barrier that its three is isolated and be arranged on the first Copper Foil coil and the second Copper Foil coil between and be arranged on two the 3rd insulating barriers between the second Copper Foil coil.
Concrete, second insulating barrier comprises first insulating material 2 that is wrapped in described long core post and second insulating material 3 that is used for two short core post of parcel, described first insulating material 2 and second insulating material 3 are arranged between the first Copper Foil coil 5 and the second Copper Foil coil 6 and described first magnetic core 1, are used for first magnetic core 1 and the first Copper Foil coil 5 and the second Copper Foil coil 6 are kept apart.
The 3rd insulating barrier comprises and is placed on the 3rd insulating material 12 between the described first Copper Foil coil and two the second Copper Foil coils and is arranged on the 4th insulating material 11 between described two second Copper Foil coils.Described the 3rd insulating material is placed in the groove between the described short core post of the long core post of the described first Copper Foil coil of described coiling and the described second Copper Foil coil of reeling.Described the 4th insulating material is placed between two short core post of the described second Copper Foil coil of reeling, and is used for both are isolated.
Also be provided with second magnetic core 14 at the top of described inductor, be used for covering first magnetic core, 1 top open surface, in conjunction with shown in Figure 7, these second magnetic core, 14 shapes are designed to a cuboid, are provided with epoxy plate 9 and first polyester film 4 and second polyester film 10 and the 3rd polyester film 13 that plays the effect of balance magnetic core between itself and described first magnetic core 1.
On the surface of above-mentioned second magnetic core 14, also comprise the 4th insulating barrier 15, be used for described second magnetic core of parcel 14 surfaces, it is isolated from the outside.
In the present embodiment, described first magnetic core, second magnetic core, first insulating barrier, second insulating barrier, the 3rd insulating barrier, the 4th insulating barrier, the first Copper Foil coil, the second Copper Foil coil and copper sheet are fixed by a glue arbitrarily between the two, thereby make inductor integral body more firm.
A kind of inductor that this use utility model provides, it not only effectively raises the sectional area of magnetic core, and has increased space availability ratio by magnetic core being designed to a long core post and two short core post of disjunctor, has improved the power of inductor.The Copper Foil coil that uses the copper foil coiling to form is wound on the magnetic core, the flat structure of Copper Foil coil has increased the surface area of coil heat radiation, thereby improved the heat sinking function of inductor inside, the utility model has effectively solved when increasing inductor power, its space availability ratio and heat dissipation problem provide a kind of performance better inductor.
Use mentality of designing of the present utility model, be easy to expect designing a kind of transformer as shown in Figure 8 for those skilled in the art.
The surface structure schematic diagram of a kind of transformer as shown in Figure 8, it comprises: constitute the magnetic core array 16 of inductance main body, this magnetic core array is made of side by side the magnetic core of two rectangular builds.Be wound with Copper Foil coil 18 on the described magnetic core array 16.Structural representation referring to the middle Copper Foil coil 18 that Figure 9 shows that this transformer, the first Copper Foil coil that uses in this Copper Foil coil 18 and the above-mentioned inductor and the second Copper Foil coil are all and use flat copper foil coiling to form the spring sheet, and the end 20 of described Copper Foil coil 18 is drawn two binding posts 21,22 by brace 19.Be provided with the 6th insulating barrier 23 between described Copper Foil coil 18 and magnetic core array 16 surfaces, be used for described Copper Foil coil and magnetic core array are insulated.Described transformer integral body is partly wrapped up from the centre by the 7th insulating barrier 17, makes whole transformer more firm.
Described transformer turns to coil by using the good copper foil of heat dispersion, thereby has effectively solved the heat dissipation problem of himself, and two magnetic cores are designed side by side, thereby has effectively saved the space.
Should be understood that; application of the present utility model is not limited to above-mentioned giving an example; for those of ordinary skills, can be improved according to the above description or conversion, all these improvement and conversion all should belong to the protection range of the utility model claims.

Claims (5)

1. an inductor is applicable to be installed on the pcb board, and it is characterized in that, described inductor comprises:
One copper sheet, first magnetic core, the first Copper Foil coil, the second Copper Foil coil, first insulating barrier and second insulating barrier;
Described copper sheet is positioned at the bottom of inductor, and its underpart is rectangle, and the edge is provided with E type breach, terminal adaptive the linking to each other of described E type breach and the described first Copper Foil coil;
Described first magnetic core is arranged on described copper sheet inside, is provided with first insulating barrier that both are isolated between described copper sheet and described first magnetic core; Described first magnetic core comprises that the upper end is made up of a long core post and two short core post, between described long core post and two short core post a T type groove is arranged, described long core post is positioned at the top of T type groove, two short core post are positioned at the left and right sides of T type groove, described long core post is identical with the height of two short core post, and the bottom of described first magnetic core is a cuboid;
The described first Copper Foil coil is wound on the described long core post; The number of the described second Copper Foil coil is two, and is wound on respectively on described two short core post; The described first Copper Foil coil and the second Copper Foil coil are flat; The end of the described second Copper Foil coil is connected with pcb board; Between described first magnetic core, the first Copper Foil coil and the described second Copper Foil coil, be provided with for second insulating barrier of isolating, in addition, between the first Copper Foil coil and the second Copper Foil coil and between two second Copper Foil coils, be provided with for the 3rd insulating barrier of isolating.
2. according to inductor according to claim 1, it is characterized in that it also comprises second magnetic core, it is shaped as a cuboid, is arranged on the top of described first magnetic core, is provided with epoxy plate and the polyester film of balance magnetic core effect between itself and described first magnetic core.
3. according to inductor as described in claim 2, it is characterized in that, also comprise be used to being wrapped on the described second magnetic core surface its 4th insulating barrier that is isolated from the outside.
4. according to inductor as described in claim 3, it is characterized in that described first magnetic core, second magnetic core, first insulating barrier, second insulating barrier, the 3rd insulating barrier, the 4th insulating barrier, the first Copper Foil coil, the second Copper Foil coil and copper sheet are appointed between the two and fixed by a glue.
5. according to inductor according to claim 1, it is characterized in that the described second Copper Foil coil is formed by thick 0.88mm, wide 5.0mm sheet Copper Foil coiled 3 circles, the described first Copper Foil coil is that 0.8mm, wide 1 circle sheet Copper Foil coiling for 15.5mm form by thickness.
CN 201320133480 2013-03-22 2013-03-22 Inductor Active CN203218058U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320133480 CN203218058U (en) 2013-03-22 2013-03-22 Inductor

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Application Number Priority Date Filing Date Title
CN 201320133480 CN203218058U (en) 2013-03-22 2013-03-22 Inductor

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Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104217846B (en) * 2014-09-16 2017-03-15 深圳振华富电子有限公司 Inductor
CN108369850A (en) * 2015-12-22 2018-08-03 伊顿智能动力有限公司 Integrated polyphase power inductor with the winding not coupled and manufacturing method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104217846B (en) * 2014-09-16 2017-03-15 深圳振华富电子有限公司 Inductor
CN108369850A (en) * 2015-12-22 2018-08-03 伊顿智能动力有限公司 Integrated polyphase power inductor with the winding not coupled and manufacturing method

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