CN205751743U - A kind of chip inductor - Google Patents

A kind of chip inductor Download PDF

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Publication number
CN205751743U
CN205751743U CN201620427623.1U CN201620427623U CN205751743U CN 205751743 U CN205751743 U CN 205751743U CN 201620427623 U CN201620427623 U CN 201620427623U CN 205751743 U CN205751743 U CN 205751743U
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China
Prior art keywords
magnetic
cavity
magnetic flux
chip inductor
fin
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Active
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CN201620427623.1U
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Chinese (zh)
Inventor
郭峰
黄裕茂
李伟健
金叶萍
薛红霞
周庆国
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CHAI XIULAN
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CHAI XIULAN
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Abstract

This utility model discloses a kind of chip inductor, it include centre be provided with the first cavity of hollow lattice coil, connect described lattice coil two end connector electrode terminal, be positioned at described first cavity and the magnetic posts, the magnetic conduction sheet being positioned at described magnetic posts upper and lower side that are made by nickel-zinc-ferrite material and be positioned at the fin of described magnetic conduction sheet outer surface, described electrode terminal and described fin, around forming the second cavity, are filled with in described second cavity by the magnetic flux body of high magnetic flux Magnaglo die casting.This utility model can keep stable inductance value and less loss in high frequency, and magnetic energy amount of storage is big and good heat dissipation effect.

Description

A kind of chip inductor
[technical field]
This utility model belongs to inductor design technical field, particularly relates to a kind of chip inductor.
[background technology]
Chip inductor (Chip inductors), is also called power inductance, heavy-current inductor and surface patch Dress high power inductance, has the characteristics such as miniaturization, high-quality, high energy storage and low resistance.Paster Inducer mainly has four types, i.e. winding-type, lamination-type, Weaving type and thin film chip inductor device. Conventional is Wound-rotor type and laminated type two types.The former is the product of tradition winding inductor miniaturization; The latter then uses multi-sheet printed technology and lamination production technology to make, volume ratio wound chip inductor device Also little, it is the product of inductance element field focus development.Inductance in general SMT Inductor is empty Wire-core coil or the coil with magnetic core, can only bear relatively low voltage by less electric current.Along with Developing rapidly of electronics and information industry, the frequency requirement of information transmission, stability require constantly to carry Height, electric current, the inductance value of generation that inducer of the prior art can pass through can not meet existing Demand.
Therefore, it is necessary to provide a kind of new chip inductor to solve the problems referred to above.
[utility model content]
Main purpose of the present utility model is to provide a kind of chip inductor, can keep steady in high frequency Fixed inductance value and less loss, magnetic energy amount of storage is big and good heat dissipation effect.
This utility model is achieved through the following technical solutions above-mentioned purpose: a kind of chip inductor, it includes Centre is provided with the lattice coil of the first cavity of hollow, connects the electricity of described lattice coil two end connector Extreme son, be positioned at described first cavity and be made by nickel-zinc-ferrite material magnetic posts, It is positioned at the magnetic conduction sheet of described magnetic posts upper and lower side and is positioned at the fin of described magnetic conduction sheet outer surface, institute State electrode terminal with described fin around forming the second cavity, be filled with by height in described second cavity The magnetic flux body of magnetic flux Magnaglo die casting.
Further, the insulator of isolation it is provided with between described fin and described electrode terminal.
Further, described lattice coil and described magnetic posts are housed in described second cavity.
Further, described magnetic conduction sheet is embedded in the upper and lower surface of described magnetic flux body.
Further, described fin all contacts with described magnetic flux surface, described magnetic conduction sheet surface.
Further, described motor terminal be wrapped in described magnetic flux body side surface and with described magnetic flux body Upper and lower surface has contact.
Further, described lattice coil is connected with described electrode terminal by two pins.
Compared with prior art, the having the beneficial effects that of a kind of chip inductor of this utility model: at high frequency Can keep down stable inductance value and less loss, magnetic energy amount of storage is big and good heat dissipation effect.Tool Body,
1) by arranging nickel-zinc ferrite magnetic posts in the middle of lattice coil, upper and lower magnetic conduction sheet is connected to Together, improve the stability of the inductance value that chip inductor is possessed in high frequency, keep relatively low simultaneously Loss;
2) electrode terminal and fin are arranged to hollow, are internally formed the second cavity, and the It is filled with in two cavitys by the magnetic flux body of high magnetic flux powder die-casting, utilizes the storage of high magnetic flux powder The big characteristic of energy, improves the magnetic energy storage capacity of chip inductor;
3) embedded for magnetic conduction sheet is arranged in magnetic flux body, increases contacting of magnetic conduction sheet and magnetic flux body Area, improves the magnetic conduction efficiency of magnetic conduction sheet;
4) by arranging fin outside magnetic conduction sheet, fin is contacted with magnetic flux surface simultaneously, Solve the problem that chip inductor affects electromagnetic performance because of self-heating.
[accompanying drawing explanation]
Fig. 1 is the structural representation of this utility model embodiment;
In figure, numeral represents:
100 chip inductors;1 lattice coil, 11 pins;2 electrode terminals;3 magnetic posts;4 magnetic conduction sheets; 5 fin;6 magnetic flux bodies;7 insulators.
[detailed description of the invention]
Embodiment:
Refer to Fig. 1, the present embodiment is chip inductor 100, and it includes that centre is provided with the first of hollow The lattice coil 1 of cavity (not indicating in figure), connect 1 liang of end connector of lattice coil electrode terminal 2, It is positioned at the magnetic posts 3 of the first cavity, is positioned at the magnetic conduction sheet 4 of magnetic posts 3 upper and lower side, is positioned at magnetic conduction sheet 4 The fin 5 of outer surface.
Electrode terminal 2 and fin 5, around forming the second cavity (not indicating in figure), are filled out in the second cavity It is filled with by the magnetic flux body 6 of high magnetic flux Magnaglo die casting.Lattice coil 1 and magnetic posts 3 are housed in the In two cavitys.The insulator 7 of isolation it is provided with between fin 5 and electrode terminal 2.Magnetic conduction sheet 4 It is embedded in the upper and lower surface of magnetic flux body 6.Fin 5 contacts with magnetic flux body 6 surface and magnetic conduction sheet 4 surface. The cross section of motor terminal 2 is C-shaped, is wrapped in the side surface of magnetic flux body 6, and with magnetic flux body 6 upper surface Contact with lower surface.
Magnetic flux body 6 uses high magnetic flux Magnaglo die casting to form, and the direct current with excellence folds characteristic, saturated Magnetic density is up to 15000G, and has relatively low loss, and energy storage is big, thus improves the present embodiment patch The magnetic energy storage capacity of sheet inductance.
Magnetic posts 3 is to be made by nickel-zinc-ferrite material.Nickel-zinc ferrite have high frequency, wideband, High impedance, low-loss feature are that high-frequency range (1-100MHz) is interior applies relatively wide, excellent performance Soft magnetic ferrite.Lattice coil 1 is connected with electrode terminal 2 by two pins 11.Electrode terminal 2 Formed by sheet metal bending.
Having the beneficial effects that of the present embodiment chip inductor 100: stable inductance can be kept in high frequency Amount and less loss, magnetic energy amount of storage is big and good heat dissipation effect.Concrete, by lattice coil 2 Centre arranges nickel-zinc ferrite magnetic posts 3, is linked together by upper and lower magnetic conduction sheet 4, improves this enforcement The stability of the inductance value that example chip inductor 100 is possessed in high frequency, keeps relatively low loss simultaneously;Will That electrode terminal 2 and fin 5 are arranged to hollow and be internally formed the second cavity, and at the second cavity Inside it is filled with by the magnetic flux body 6 of high magnetic flux powder die-casting, utilizes the big spy of energy storage of high magnetic flux powder Property, improve the magnetic energy storage capacity of the present embodiment chip inductor 100;Embedded for magnetic conduction sheet 4 is set Put in magnetic flux body 6, increase the contact area of magnetic conduction sheet 4 and magnetic flux body 6, improve magnetic conduction sheet 4 Magnetic conduction efficiency;By arranging fin 5 outside magnetic conduction sheet 4, simultaneously by fin 5 and magnetic flux body 6 surface Contact, solve the problem that chip inductor 100 affects electromagnetic performance because of self-heating.
Above-described is only embodiments more of the present utility model.Ordinary skill for this area For personnel, on the premise of creating design without departing from this utility model, it is also possible to make some deformation And improvement, these broadly fall into protection domain of the present utility model.

Claims (7)

1. a chip inductor, it is characterized in that: it include centre be provided with the first cavity of hollow lattice coil, connect described lattice coil two end connector electrode terminal, be positioned at described first cavity and the magnetic posts, the magnetic conduction sheet being positioned at described magnetic posts upper and lower side that are made by nickel-zinc-ferrite material and be positioned at the fin of described magnetic conduction sheet outer surface, described electrode terminal and described fin, around forming the second cavity, are filled with in described second cavity by the magnetic flux body of high magnetic flux Magnaglo die casting.
2. chip inductor as claimed in claim 1, it is characterised in that: it is provided with the insulator of isolation between described fin and described electrode terminal.
3. chip inductor as claimed in claim 1, it is characterised in that: described lattice coil and described magnetic posts are housed in described second cavity.
4. chip inductor as claimed in claim 1, it is characterised in that: described magnetic conduction sheet is embedded in the upper and lower surface of described magnetic flux body.
5. chip inductor as claimed in claim 1, it is characterised in that: described fin all contacts with described magnetic flux surface, described magnetic conduction sheet surface.
6. chip inductor as claimed in claim 1, it is characterised in that: described electrode terminal is wrapped in the side surface of described magnetic flux body and contacts with described magnetic flux body upper and lower surface.
7. chip inductor as claimed in claim 1, it is characterised in that: described lattice coil is connected with described electrode terminal by two pins.
CN201620427623.1U 2016-05-12 2016-05-12 A kind of chip inductor Active CN205751743U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620427623.1U CN205751743U (en) 2016-05-12 2016-05-12 A kind of chip inductor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620427623.1U CN205751743U (en) 2016-05-12 2016-05-12 A kind of chip inductor

Publications (1)

Publication Number Publication Date
CN205751743U true CN205751743U (en) 2016-11-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620427623.1U Active CN205751743U (en) 2016-05-12 2016-05-12 A kind of chip inductor

Country Status (1)

Country Link
CN (1) CN205751743U (en)

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