CN205177563U - Cavity inductor - Google Patents

Cavity inductor Download PDF

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Publication number
CN205177563U
CN205177563U CN201520820130.XU CN201520820130U CN205177563U CN 205177563 U CN205177563 U CN 205177563U CN 201520820130 U CN201520820130 U CN 201520820130U CN 205177563 U CN205177563 U CN 205177563U
Authority
CN
China
Prior art keywords
inductor
coil
skeleton
iron core
diameter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201520820130.XU
Other languages
Chinese (zh)
Inventor
许建军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huaian Hongfubang Electronics Co Ltd
Original Assignee
Huaian Hongfubang Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huaian Hongfubang Electronics Co Ltd filed Critical Huaian Hongfubang Electronics Co Ltd
Priority to CN201520820130.XU priority Critical patent/CN205177563U/en
Application granted granted Critical
Publication of CN205177563U publication Critical patent/CN205177563U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a cavity inductor. It is by the skeleton, coil and pin are constituteed, the one end of skeleton is equipped with two pins, be equipped with the ferrite iron core in the skeleton, the cylindrical cavity form that is unshakable in one's determination, outer loop coil unshakable in one's determination, coil peripheral hardware shielding layer, the factor of merit that can optimize the magnetic field distribution of inductor and carry high Q inductor is described to iron core in the inductor for cylindrical cavity, in order to improve its inductance, the ultra -low -carbon steel that the shielding layer adopted the carbon content to be less than 0.01%, can absorb the magnetic field that the inside disturbing magnetic field that produces and other inductors produced.

Description

A kind of hollow inductor
Technical field
The utility model relates to inductor field, is specifically related to a kind of hollow inductor.
Background technology
Inductor can be the element that magnetic energy stores electric energy conversion.The similar of inductor is in transformer, and inductor has certain inductance, and it only hinders the change of electric current.If inductor is under the state not having electric current to pass through, during circuit ON, it will attempt to hinder electric current to flow through it; If inductor is under the state having electric current to pass through, circuit disconnect time it will attempt maintenance electric current constant.Existing inductor Distribution of Magnetic Field is uneven and inductance is low.
Summary of the invention
The purpose of this utility model is: provide a kind of Distribution of Magnetic Field even, the inductor that inductance is high.
The utility model is achieved through the following technical solutions: a kind of hollow inductor, comprises skeleton, iron core and coil; Described skeleton is provided with two pins, is provided with iron core in described skeleton, and described iron core is wound with coil, two of described coil is connected respectively to two pins, described iron core is cylindrical, and described iron core is axially arranged with through hole along it, and described through hole cross section and cross section unshakable in one's determination are concentric circles; Described coil is also provided with screen outward, and described screen material is steel; Also air gap is left between described screen and coil.
As further preferred version of the present utility model, described screen material is the mild steel that carbon content is less than 0.01%.
As further preferred version of the present utility model, the thickness of described air gap is 20% ~ 40% of core-diameter.
As further preferred version of the present utility model, the thickness of described air gap is 30% of core-diameter.
As further preferred version of the present utility model, the diameter of through hole is 1/3 ~ 1/2 of core-diameter.
As further preferred version of the present utility model, the diameter of through hole is 1/2 of core-diameter.
As further preferred version of the present utility model, as further preferred version of the present utility model, described outer surface unshakable in one's determination is axially arranged with equally distributed raised line along it.
As further preferred version of the present utility model, described raised line has 8.
Compared with prior art, the utility model has following beneficial effect:
Iron core in inductor of the present utility model is that cylindrical, hollow shape can be optimized the Distribution of Magnetic Field of inductor and improve the quality factor of inductor, to improve its inductance, the ultra-low-carbon steel that screen adopts carbon content to be less than 0.01%, the disturbing magnetic field of inner generation and the magnetic field of other inductors generation can be absorbed, optimize the Distribution of Magnetic Field of inductor and improve its inductance.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model front view unshakable in one's determination.
1. skeletons in figure, 2. unshakable in one's determination, 3. coil, 4. screen, 5. pin, 6. raised line, 7. air gap.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figures 1 and 2, hollow inductor comprises skeleton 1, iron core 2, coil 3, screen 4, pin 5 and air gap 7, is provided with two pins 5 in one end of skeleton 1, unshakable in one's determination 2 are established in skeleton 1, unshakable in one's determination 2 are provided with through hole, and be hollow cylindrical, the diameter of through hole is 1/2 of 2 diameters unshakable in one's determination, 2 surfaces unshakable in one's determination are provided with 8 raised lines 6, 2 peripheral hardwares unshakable in one's determination have coil 3, screen 4 is provided with outside coil 3, screen 4 is less than the ultra-low-carbon steel of 0.01% for phosphorus content, the annulus gap 7 that thickness is 30% of 2 diameters unshakable in one's determination is provided with in the middle of screen 4 and coil 3, the two ends of coil 3 are connected with two pins 5, iron core 2 in inductor can be optimized the Distribution of Magnetic Field of inductor for cylindrical, hollow shape and improve the quality factor of inductor, to improve its inductance, screen 4 adopts carbon content to be less than the ultra-low-carbon steel of 0.01%, the disturbing magnetic field of inner generation and the magnetic field of other inductors generation can be absorbed.

Claims (8)

1. a hollow inductor, comprises skeleton, iron core and coil; Described skeleton is provided with two pins, iron core is provided with in described skeleton, described iron core is wound with coil, two of described coil is connected respectively to two pins, it is characterized in that: described iron core is cylindrical, described iron core is axially arranged with through hole along it, and described through hole cross section and cross section unshakable in one's determination are concentric circles; Described coil is also provided with screen outward, and described screen material is steel; Also air gap is left between described screen and coil.
2. a kind of hollow inductor according to claim 1, is characterized in that: described screen material is the mild steel that carbon content is less than 0.01%.
3. a kind of hollow inductor according to claim 1, is characterized in that: the thickness of described air gap is 20% ~ 40% of core-diameter.
4. a kind of hollow inductor according to claim 3, is characterized in that: the thickness of described air gap is 30% of core-diameter.
5. a kind of hollow inductor according to claim 1, is characterized in that: the diameter of through hole is 1/3 ~ 1/2 of core-diameter.
6. a kind of hollow inductor according to claim 5, is characterized in that: the diameter of through hole is 1/2 of core-diameter.
7. a kind of hollow inductor according to claim 1, is characterized in that: described outer surface unshakable in one's determination is axially arranged with equally distributed raised line along it.
8. a kind of hollow inductor according to claim 7, is characterized in that: described raised line has 8.
CN201520820130.XU 2015-10-21 2015-10-21 Cavity inductor Expired - Fee Related CN205177563U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520820130.XU CN205177563U (en) 2015-10-21 2015-10-21 Cavity inductor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520820130.XU CN205177563U (en) 2015-10-21 2015-10-21 Cavity inductor

Publications (1)

Publication Number Publication Date
CN205177563U true CN205177563U (en) 2016-04-20

Family

ID=55741521

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520820130.XU Expired - Fee Related CN205177563U (en) 2015-10-21 2015-10-21 Cavity inductor

Country Status (1)

Country Link
CN (1) CN205177563U (en)

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160420

Termination date: 20171021

CF01 Termination of patent right due to non-payment of annual fee