CN202473479U - Inductance device - Google Patents

Inductance device Download PDF

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Publication number
CN202473479U
CN202473479U CN2011202410500U CN201120241050U CN202473479U CN 202473479 U CN202473479 U CN 202473479U CN 2011202410500 U CN2011202410500 U CN 2011202410500U CN 201120241050 U CN201120241050 U CN 201120241050U CN 202473479 U CN202473479 U CN 202473479U
Authority
CN
China
Prior art keywords
magnet
arm
side column
folding arm
center pillar
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
CN2011202410500U
Other languages
Chinese (zh)
Inventor
陈限育
林金城
徐晓辉
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.)
Xiamen NanCi Electronics Co., Ltd.
Original Assignee
QINGLIU COUNTY XINCI COIL PRODUCTS 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 QINGLIU COUNTY XINCI COIL PRODUCTS CO Ltd filed Critical QINGLIU COUNTY XINCI COIL PRODUCTS CO Ltd
Priority to CN2011202410500U priority Critical patent/CN202473479U/en
Application granted granted Critical
Publication of CN202473479U publication Critical patent/CN202473479U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to an inductance device having two coils connected in a parallel way. The inductance device comprises a middle-column magnet, two E-shaped side-column magnets and two coils. Each side-column magnet is provided with a straight arm the two ends of which are respectively provided with one end bending arm. A middle bending arm is equipped on the central part of the straight arm between each pair of end bending arms. Two end bending arms and one middle bending arm are located on the same side of each straight arm. Two coils are respectively wound on the middle bending arms of the side-column magnets. The two coils are connected in a parallel way. The middle-column magnet and the side-column magnets are docked to form a closed magnetic circuit by making the outward end faces of the bending arms of the side-column magnets attached on the side surfaces of the middle-column magnet. The inductance device provided in the utility model has the beneficial effects of saving copper materials, improving the quality factor (i.e. the Q value) and alleviating the influences of context effects and skin effects on the coils.

Description

A kind of inductance component
Technical field
The utility model relates to inductance components such as choke, filter and electronic transformer, relates in particular to a kind of inductance component of two coils from parallel connection of coils.
Background technology
Traditional coil class inductance component generally cooperates bobbin to form around last enamelled wire by EE type magnetic core or EI type magnetic core.Making the copper cash line footpath of coil, generally is to select according to the size of place loaded current; General copper cash is closely to arrange also layering to make coil.Make the proximity effect influence of coil increase like this; And electronics choke and electronic transformer are generally operational under the high frequency state, and penetration depth is less, and the influence of skin effect is also bigger; Therefore because the influence of proximity effect and skin effect very easily causes the waste of coil copper cash.
In order to prevent that the magnetic saturation phenomenon from taking place; Need in magnetic circuit, be provided with magnetic air gap; Magnetic air gap places the center pillar of magnetic core usually; Dispersing flux mainly is present near the magnetic air gap, and dispersing flux makes near the coiler part the air gap lose the transformation of " electricity-magnetic ", and near the coil sections the air gap only plays filling effect.The big more dispersing flux of air gap amount is just big more, and the coil of invalid filling is also just many more, and leakage flux is passed the line bag simultaneously, causes the certain power loss.Above-mentioned reason causes the increase of device self copper resistance and copper loss, and the power consumption of device is raise, and waste electric energy and copper material reduce useful life.
Summary of the invention
The purpose of the utility model is: a kind of inductance component of saving copper material, raising quality factor (being the Q value), reducing the coil proximity effect is provided.
The technical scheme of the utility model is achieved in that a kind of inductance component, it is characterized in that, comprises a center pillar magnet, two E font side column magnets and two coils; Said side column magnet is provided with a straight-arm, is respectively equipped with two end folding arms at the two ends of straight-arm, on the straight-arm centre position between two end folding arms, is provided with a middle folding arm, and end folding arm and middle folding arm are positioned at the same side of straight-arm; Two coils twine respectively on the middle folding arm that is arranged on the side column magnet, and two coils from parallel connection of coils link together; The export-oriented end face of side column magnet folding arm is affixed to the side of center pillar magnet, makes the center pillar magnet dock the formation closed magnetic loop with the side column magnet.
The utility model is compared with traditional " EE " type inductor and is had the following advantages:
1. saving copper material;
2. improve quality factor (being the Q value);
3. reduce the influence of proximity effect and skin effect to coil.
Below in conjunction with accompanying drawing and embodiment the utility model is described in detail.
Description of drawings
Fig. 1 is embodiment 1 an inductance component sketch map;
Fig. 2 is embodiment 1 an inductance component exploded view;
Fig. 3 is the magnetic core sketch map of embodiment 2;
Fig. 4 is embodiment 3 inductance component sketch mapes;
Fig. 5 is the magnetic core sketch map of embodiment 4.
Embodiment
Embodiment 1
Referring to Fig. 1 and Fig. 2, a kind of inductance component is characterized in that, comprises a center pillar magnet 1, two E font side column magnets 2 and two coils 3; Said side column magnet is provided with a straight-arm 2-1, is respectively equipped with two end folding arm 2-2 at the two ends of straight-arm, on the straight-arm centre position between two end folding arms, is provided with a middle folding arm 2-3, and end folding arm and middle folding arm are positioned at the same side of straight-arm; Two coils twine respectively on the middle folding arm that is arranged on the side column magnet, and two coils from parallel connection of coils link together; The export-oriented end face of side column magnet folding arm is affixed to the side of center pillar magnet, makes the center pillar magnet dock the formation closed magnetic loop with the side column magnet.
In the present embodiment; The center pillar magnet is the I font, and the middle folding arm of side column magnet is shorter slightly than the end folding arm, and the side column magnet is with after the center pillar magnet docks; Between the side of the export-oriented end face of middle folding arm and center pillar magnet, form magnetic air gap, can prevent the generation of magnetic saturation phenomenon effectively.The outer surface of side column magnet and center pillar magnet is provided with insulating barrier, and behind two coil electricities, formed flow direction is opposite in the folding arm in two side column magnets.
Owing to two groups of coils are arranged in the utility model, to compare with the unicoil of traditional EE type inductor, the less copper cash in available line footpath is made coil, and electric current will reduce half thely in each coil, can reduce the influence of skin effect and proximity effect like this; Add and do not establish coil on the magnetic air gap, reduced the influence of dispersing flux, so the utility model can be saved copper material, raising Q value coil.
Embodiment 2
Referring to embodiment 1 and Fig. 3; Be with embodiment 1 difference; The middle folding arm of the side column magnet in the present embodiment and the equal in length of holding folding arm are respectively equipped with two groove 1-1 on the two sides of I font center pillar magnet, groove is arranged in side column magnet folding arm and center pillar magnet joint.The degree of depth of this groove is the size of present embodiment magnetic air gap.
Embodiment 3
Referring to embodiment 1 and Fig. 4, be that with embodiment 1 difference the center pillar magnet is provided with a groove 1-2.
Embodiment 4
Referring to embodiment 1, embodiment 3 and Fig. 5; Be with embodiment 3 differences; The middle folding arm of the side column magnet in the present embodiment and the equal in length of holding folding arm are established two groove 1-1 on the side of I font center pillar magnet, groove is arranged in side column magnet folding arm and center pillar magnet joint.
Embodiment 5
Referring to embodiment 1; Be with embodiment 1 difference; Be provided with in the present embodiment through improved skeleton, the outer surface of center pillar magnet and side column magnet is not established insulating barrier, with center pillar magnet and side column magnet put with skeleton on; The winding of two coils is arranged on the skeleton of folding arm opposite position in the side column magnet, and the center pillar magnet is docked the formation closed magnetic loop with the side column magnet.
This utility model that frame design is arranged is for assembling on circuit board provides convenience.

Claims (8)

1. an inductance component is characterized in that, comprises a center pillar magnet, two E font side column magnets and two coils; Said side column magnet is provided with a straight-arm, is respectively equipped with two end folding arms at the two ends of straight-arm, on the straight-arm centre position between two end folding arms, is provided with a middle folding arm, and end folding arm and middle folding arm are positioned at the same side of straight-arm; Two coils twine respectively on the middle folding arm that is arranged on the side column magnet, and two coils from parallel connection of coils link together; The export-oriented end face of side column magnet folding arm is affixed to the side of center pillar magnet, makes the center pillar magnet dock the formation closed magnetic loop with the side column magnet.
2. a kind of inductance component according to claim 1 is characterized in that, behind said two coil electricities, formed flow direction is opposite in the folding arm in two side column magnets.
3. a kind of inductance component according to claim 2 is characterized in that, said center pillar magnet is the I font.
4. a kind of inductance component according to claim 3 is characterized in that, the middle folding arm of said side column magnet is shorter slightly than the end folding arm.
5. a kind of inductance component according to claim 3 is characterized in that, is respectively equipped with two grooves on the two sides of said I font center pillar magnet, and groove is arranged in side column magnet folding arm and center pillar magnet joint.
6. a kind of inductance component according to claim 3 is characterized in that, said I font center pillar magnet is provided with a groove.
7. a kind of inductance component according to claim 6 is characterized in that, the middle folding arm of said side column magnet is shorter slightly than the end folding arm.
8. a kind of inductance component according to claim 6 is characterized in that, is respectively equipped with two grooves on the two sides of said I font center pillar magnet, and groove is arranged in side column magnet folding arm and center pillar magnet joint.
CN2011202410500U 2011-07-11 2011-07-11 Inductance device Expired - Fee Related CN202473479U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011202410500U CN202473479U (en) 2011-07-11 2011-07-11 Inductance device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011202410500U CN202473479U (en) 2011-07-11 2011-07-11 Inductance device

Publications (1)

Publication Number Publication Date
CN202473479U true CN202473479U (en) 2012-10-03

Family

ID=46921623

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011202410500U Expired - Fee Related CN202473479U (en) 2011-07-11 2011-07-11 Inductance device

Country Status (1)

Country Link
CN (1) CN202473479U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104425122A (en) * 2013-09-06 2015-03-18 昆山玛冀电子有限公司 Manufacturing method and structure of inductor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104425122A (en) * 2013-09-06 2015-03-18 昆山玛冀电子有限公司 Manufacturing method and structure of inductor

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20180116

Address after: 361006 Fujian Province, Xiamen City Industrial Park No. 186 Siming District

Patentee after: Xiamen NanCi Electronics Co., Ltd.

Address before: 365300 Fujian province Sanming City Qingliu County Longjin Town Dongcheng District Xin magnetic Industrial Park

Patentee before: Qingliu County Xinci Coil Products Co., Ltd.

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

Granted publication date: 20121003

Termination date: 20180711