CN104425097A - Thin combined inductor structure and assembly method thereof - Google Patents
Thin combined inductor structure and assembly method thereof Download PDFInfo
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- CN104425097A CN104425097A CN201310399240.9A CN201310399240A CN104425097A CN 104425097 A CN104425097 A CN 104425097A CN 201310399240 A CN201310399240 A CN 201310399240A CN 104425097 A CN104425097 A CN 104425097A
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- flat coil
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Abstract
The invention discloses a thin combined inductor structure and an assembly method thereof. The thin combined inductor structure comprises a core, a flat coil, a board and an upper cover; the flat coil which is hollow comprises two pin parts extending out; the upper surface of the board is used for holding the core and the flat coil; the upper cover connected with the board is used for covering the cover and the flat coil. In this way, after the core is mounted on the board, by the use of the flat coil allowing the core to be nested in, the core, the board and the upper cover, wherein the core, the board and the upper cover are separated, the problems that non-uniform winding is caused in the prior winding process, parts are difficult to separately manufactured, making use of magnetic materials different in magnetic characteristic is difficult and the shifting of wire ends cause failure of the wire ends to be passed out of hanging slots are avoided.
Description
Technical field
The present invention relates to a kind of inductor structure and assemble method thereof, in particular a kind of have the slimming combination inductor structure that can be set in flat coil wherein for core body, and the assemble method of described inductor structure.
Background technology
In the field of electronic component now, the passive device in inductance element Chang Zuowei electronic circuit, the function of this inductance element is normally as the filter of the high-frequency signals suppressed in high-frequency circuit.Fig. 1 is the structural representation of known electric sensing unit, and wherein, inductance element has core body 10, coil 11, pedestal 12 and housing 13.Core body 10 is made by the magnetic material in an I-shaped shape, and has the core body upper plate body 101, core body lower body 102 and the cylinder 103 that are integrally formed.Core body lower body 102 is be connected with the lower surface of cylinder 103, and selectively has line outlet groove 1011 and pass for two pin portions 111 of coil 11; Core body upper plate body 101 is be connected with the upper surface of cylinder 103.In addition, the core body upper plate body 101 be integrally formed, core body lower body 102 and cylinder 103 are made up of identical magnetic material, during for the electric current applying to change at external circuit on coil 11, the magnetic line of force that coil 11 is produced can be strengthened by core body 10, thus increases the inductance value of inductance element 1.Pedestal 12 is the lower surfaces of the core body lower body 102 being connected to core body 10 after core body 10 is made, and pedestal 12 has two hanging wire pin 121, and more described hanging wire pin 121 respectively has hanging wire groove 121a respectively, with after two pin portions 111 respectively for coil 11 pass, then two pin portions 111 are wound on more described hanging wire pin 121 respectively.Therefore, be connected to the lower surface of core body lower body 102 at pedestal 12 after, coil 11 is wrapped on cylinder 103, and carefully more described hanging wire groove 121a is aimed in two pin portions 111 respectively at the end of coiling, can pass from more described hanging wire groove 121a smoothly to make more described pin portion 111.
In the manufacturing process of above-mentioned known electric sensing unit, if the location that pedestal 12 is connected with core body lower body 101 is inaccurate or the coiling stop position generation deviation of coil 11, pin portion 111 then can be caused cannot to pass from hanging wire groove 121a, therefore manual monitoring or adjustment is needed during coiling, could by pin portion 111 and hanging wire groove 121a contraposition again, thus this manufacturing process be caused to be difficult to realize automation.
In addition, because the core body upper plate body 101 in core body 10, core body lower body 102 and cylinder 103 are integrally formed by identical magnetic material, therefore coil 11 only can use wire winding coiling on cylinder 103 to form, therefore ready-made coil 11 cannot be planted (to insert assembling mode) is set on cylinder 103.In addition, cylinder 103 only can use the magnetic material identical with core body upper plate body 101 and core body lower body 102, if therefore need to use comparatively core body upper plate body 101 (as manganese-zinc ferrite) and core body lower body 102 (as nickel-zinc ferrite) compared with low permeability but the higher magnetic material (as straight iron powder or manganese-zinc ferrite) of magnetic line of force saturation at cylinder 103, the core body 10 be therefore integrally formed in known electric sensing unit cannot provide effect of unrestricted choice material.And have reduce girth and sectional area cylinder 103 as the assembly by coil 11 coiling, but still can have enough magnetic figures with maintain inductance element magnetic properties and thus shorter coil 11 can be used to obtain lower resistance characteristic and wire rod consumption, and can require (as cylinder 103 can select the material that magnetic line of force saturation is higher according to required magnetic properties and component thickness, and housing 13 can select magnetic line of force saturation lower but the material that permeability is higher can be made into thinner thickness, thus there is enough closed magnetic figures to maintain the magnetic properties of inductance element and there is thinner element gross thickness) carry out unrestricted choice magnetic material.
Moreover, if known electric sensing unit presents askew status after housing 13 and core body 10 are assembled, will make to produce gap between housing 13 and outer rim, and thus cause dispersing and the change of inductance value of flux loop.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
The technical problem to be solved in the present invention is, for the above-mentioned defect of prior art, a kind of slimming is provided to combine inductor structure and assemble method thereof, there is better assembling yield, and the associated component due to inductance can be prepared respectively and can select the material of different magnetic properties respectively, therefore greatly promotes the production efficiency of automatic assembling and the design flexibility of inductance.
The technical scheme that technical solution problem of the present invention adopts is as follows:
A kind of slimming combination inductor structure, comprising:
Core body;
Flat coil, the two pin portions that there is hollow bulb and extend laterally, described hollow bulb is used for being set in wherein for described core body;
Plate body, for described core body and described flat coil surface disposed thereon, and the position in the corresponding described two pin portions of described plate body has two line outlet grooves, for accommodating described two pin portions;
Upper cover body, engages with described plate body and coated described core body and described flat coil.
Preferably, the lower surface of described plate body has two accommodation sections, and described accommodation section extends to the inside from described line outlet groove, for the described two pin portions after accommodating bending.
Preferably, described core body is cylinder or multiangular cylinder.
Preferably, described core body is arranged in described hollow bulb.
Preferably, when described upper cover body to engage with described plate body and coated described core body and described flat coil time, described two pin portions expose from described two line outlet grooves.
An assemble method for slimming combined electrical sensor, comprises the following steps:
A, flat coil is arranged on plate body upper surface on and make two foot portions not correspond to two line outlet grooves;
B, core body is plugged in the hollow bulb of described flat coil;
C, engage upper cover body and described plate body closely sealed and coated described core body and described flat coil, and described two foot portions are not exposed from described line outlet groove.
Preferably, described steps A also comprises:
A1, on upper surface flat coil being arranged on plate body after, by described two pin portions bending and pass from described two line outlet grooves.
Preferably, described A1 also comprises:
A11, the described two pin portions of exposing to be bent again, with make to be positioned at described plate body lower surface and from two accommodation sections that described line outlet groove extends to the inside the accommodating described two pin portions again bent.
An assemble method for slimming combined electrical sensor, comprises the following steps:
D, core body is placed on the upper surface of plate body;
E, flat coil is arranged on described plate body upper surface on and described core body is set in the hollow bulb of described flat coil, and make two foot portions not correspond to two line outlet grooves;
F, by described two pin portions bending and pass from described two line outlet grooves;
G, engage upper cover body and described plate body and coated described core body and described flat coil, and described two foot portions are not exposed from described two line outlet grooves.
Preferably, described step F also comprises:
F1, the described two pin portions of exposing to be bent again, with make to be positioned at described plate body lower surface and from two accommodation sections that described line outlet groove extends to the inside the accommodating described two pin portions again bent.
Beneficial effect of the present invention:
The present invention has the plate body of two line outlet grooves by the position being set in flat coil wherein and corresponding described two pin portions for core body, make this slimming combine inductor structure and can have better assembling yield by more known inductor structure, and the associated component due to inductance can be prepared respectively and can select the material of different magnetic properties respectively, therefore greatly promotes the production efficiency of automatic assembling and the design flexibility of inductance.
Accompanying drawing explanation
Fig. 1 is the structural representation of known electric sensing unit.
Fig. 2 is the structural representation of a kind of slimming combination of the present invention inductor structure preferred embodiment.
Fig. 3 a is the flow chart of the assemble method preferred embodiment of a kind of slimming combined electrical of the present invention sensor.
Fig. 3 b is the assembling schematic diagram of the assemble method preferred embodiment of a kind of slimming combined electrical of the present invention sensor.
Fig. 4 a is the flow chart of another preferred embodiment of assemble method of a kind of slimming combined electrical of the present invention sensor.
Fig. 4 b is the assembling schematic diagram of another preferred embodiment of assemble method of a kind of slimming combined electrical of the present invention sensor.
Embodiment
The invention provides a kind of slimming combination inductor structure and assemble method thereof, for making object of the present invention, technical scheme and advantage clearly, clearly, developing simultaneously referring to accompanying drawing, the present invention is described in more detail for embodiment.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
A kind of slimming combination inductor structure provided by the present invention preferred embodiment, as shown in Fig. 2 and Fig. 3 b, described inductor structure comprises: core body 20, flat coil 21, plate body 22, and upper cover body 23, wherein flat coil 21 can be arranged on after on plate body 22, core body 20 is set in the hollow bulb 212 of flat coil 21, or core body 20 is placed in after on plate body 22, flat coil 21 to be arranged on plate body 22 and core body 20 is plugged in the hollow bulb 212 of flat coil 21, and two pin portions 211 of flat coil 21 are contained in the line outlet groove 221 of plate body 22.After this, upper cover body 23 is engaged with plate body 22 and coated core body 20 and flat coil 21.
In details of the words, flat coil 21 is preferably had the punching press being coated with insulating material sheet metal by outer surface (is such as copper, but the present invention is not limited thereto) be built up the multiturn number flat coil 21 for the prefabricated loop shape completed in the mode be electrically connected (as: welding, spot welding etc.), and described flat coil 21 cording has the two pin portions 211 extended laterally to be electrically connected for external circuit (not shown).In addition, flat coil 21 also has and can be circular or polygonal hollow bulb 212, for being set in wherein for described core body 20.In another embodiment of the invention, flat coil 21 can for the wire by outer surface with insulating material with close two kinds of forms around (during coiling, wire one circle suffers a circle) and spaced winding (often enclosing during coiling between wire all every certain distance) the simple squamous shape coil 21 of coiling in advance, or again with layering put down around, disorderly around the forms such as, universal winding the multilayer flat coil 21 of coiling in advance, but to the present invention is not limited thereto.
Core body 20, made by magnetic material (be such as silicon steel sheet, permalloy etc., but the present invention is not limited thereto), and described core body 20 is cylinder or multiangular cylinder, with closely sealed with the hollow bulb 212 of above-mentioned flat coil 21.
In preferred embodiment of the present invention, core body 20 can select different low permeabilities according to user's demand freedom but the higher material of the magnetic line of force saturated magnetic number density, or select lower cost but performance good magnetic material (as: material such as the manganese-zinc ferrite of straight iron powder or high saturated magnetic number density or alloy) made by.Plate body 22, can made by magnetic material, and described magnetic material can be nickel-zinc ferrite (Ni-Zn) material, but the present invention is not limited thereto.And plate body 22 can have corresponding two line outlet grooves 221 in two pin portions 211 of flat coil 21 respectively, line outlet groove 221 can be configured in the optional position beyond region that core body 20 and simple squamous shape coil 21 contact with plate body 22 in response to the demand in design, but preferably correspondence in two pin portions 211 stretch out the side edge place of the plate body 22 in direction, and line outlet groove 221 can suitably adjust when its width has an error after assembling for pin portion 211 still can accommodating described two pin portions 211, to avoid because two pin portions 211 cannot pass caused problem from two line outlet grooves 221, and thus greatly can promote the production efficiency of slimming combination inductor structure and assemble yield.
Upper cover body 23, can made by magnetic material, and described magnetic material can be manganese-zinc ferrite (Mn-Zn) material, but the present invention is not limited thereto.To form airtight flux loop with core body 20 and upper cover body 23, and upper cover body 23 is engage (such as plate body 22 and upper cover body 23 respectively have corresponding step structure 223 and 233, but the present invention is not limited thereto) with plate body 22 with coated core body 20 and flat coil 21.
Please refer to Fig. 2, the lower surface place of plate body 22 can have two accommodation sections 222, and accommodation section 222 extends to the inside from line outlet groove 221, for the pin portion 211 after accommodating bending.
The assemble method preferred embodiment of a kind of slimming combined electrical sensor provided by the present invention, as shown in Figure 3 a and Figure 3 b shows, comprises the following steps:
S110: upper surface flat coil being arranged on plate body makes two foot portions not correspond to two line outlet grooves;
S120: core body is plugged in the hollow bulb of described flat coil;
S130: engage upper cover body and described plate body closely sealed and coated described core body and described flat coil, and described two foot portions are not exposed from described line outlet groove.
Be specially: in the process of slimming combination inductor structure assembling, first upper surface flat coil 21 being arranged on plate body 22 make pin portion 211 correspond to line outlet groove 221 respectively, after this, more described pin portion 211 is bent to make it pass from line outlet groove 221, thereafter, can core body 20 be arranged in hollow bulb 212 to insert assembling mode, finally, upper cover body 23 is engaged with coated core body 20 and flat coil 21 with plate body 22, and pin portion 211 is exposed from line outlet groove 221 respectively.So, by the above-mentioned upper cover body 23 engaged with plate body 22, the present invention can obtain having had totally enclosed flux loop and have the inductor structure of stable target inductance value (referring to the inductance value in the design error of inductance).
Further, can, after core body 20 is arranged in hollow bulb 212, pin portion 211 be bent make it pass from line outlet groove 221.
Further, also can, after pin portion 211 bends or after upper cover body 23 engages with plate body 22, optionally pin portion 211 be bent to make it be contained in accommodation section 222.
Another preferred embodiment of assemble method of a kind of slimming combined electrical sensor provided by the present invention, as shown in Figs. 4a and 4b, comprise the following steps:
S210: core body is placed on the upper surface of plate body;
S220: upper surface flat coil being arranged on described plate body makes described core body be set in the hollow bulb of described flat coil, and makes two foot portions not correspond to two line outlet grooves;
S230: described two pin portions are bent and pass from described two line outlet grooves;
S240: engage upper cover body and described plate body and coated described core body and described flat coil, and described two foot portions are not exposed from described two line outlet grooves.
Be specially: the difference of the present embodiment and above-mentioned Fig. 3 b is only, the prefabricated flat coil 21 completed as above is then set in outside core body 20 by the upper surface that first core body 20 can be arranged on plate body 22, in this situation, line outlet groove 221 can suitably adjust its width, therefore when having error after flat coil 21 and core body 20 are assembled, line outlet groove 221 still can accommodating more described pin portion 211.
In sum, compared to known technology, because the present invention is by being set in flat coil wherein for core body and having the suitable plate body adjusting two line outlet grooves of its width in the position in corresponding two pin portions, and the inductor structure making the present invention more known can have following advantage:
1. do not need accurately to determine coiling complete after the position in pin portion, thus avoid pin portion cannot pass improve yield and be convenient to automatic assembling from line outlet groove;
2. each assembly can be prefabricated respectively, so that flexible scheduling is produced;
3. can contraposition and closely sealed easily between upper cover body and plate body, thus avoid causing because contraposition is not good between the two cannot closely sealed and engage bad.
In addition, compared to known technology, because the present invention is separated into discrete assembly by forming core body, plate body and the upper cover body of closing magnetic circuit, therefore following advantage can be obtained:
1. the material (as: ferrocart core or alloy material) of high saturated magnetic number density and plate body and upper cover body can be used to use the material (as: nickel zinc and MnZn) of high permeability to be combined into and to close magnetic loop because of core body, again with under the condition of known cylinder area equation size, because the material of high saturated magnetic number density selected by core body of the present invention, therefore good saturation current characteristic can be obtained, if the present invention reduces long-pending for core section, because material saturated magnetic number density is high, so equal saturation current characteristic can be obtained, but core body girth can be reduced, and then winding length reduction resistance characteristic and material materials can be shortened,
2. can according to must magnetic and electric characteristics and unrestricted choice magnetic material (as core body can select magnetic line of force saturation higher but the magnetic material that permeability is lower, magnetic line of force saturation can be selected lower for plate body but permeability is higher and the material of low electrical conductivity, and upper cover body can select magnetic line of force saturation lower but the material that permeability is higher) and size (plate body and upper cover body can be made into thinner thickness), with thus make inductance element have enough closed magnetic figures to maintain the magnetic properties of inductance element and to have thinner element gross thickness, and make not easily to leak electricity with the plate body of contact outside electronics,
3. make ready-made coil can plant (to insert the mode of assembling) and be set on core body because of these discrete assemblies, thus avoid using alignment issues between the pin portion that causes of known wire winding and hanging wire groove and cannot the problem of automation.
Should be understood that, application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection range that all should belong to claims of the present invention.
Claims (10)
1. a slimming combination inductor structure, is characterized in that, comprising:
Core body;
Flat coil, the two pin portions that there is hollow bulb and extend laterally, described hollow bulb is used for being set in wherein for described core body;
Plate body, for described core body and described flat coil surface disposed thereon, and the position in the corresponding described two pin portions of described plate body has two line outlet grooves, for accommodating described two pin portions;
Upper cover body, engages with described plate body and coated described core body and described flat coil.
2. slimming combination inductor structure according to claim 1, it is characterized in that, the lower surface of described plate body has two accommodation sections, and described accommodation section extends to the inside from described line outlet groove, for the described two pin portions after accommodating bending.
3. slimming combination inductor structure according to claim 1, it is characterized in that, described core body is cylinder or multiangular cylinder.
4. slimming combination inductor structure according to claim 1, it is characterized in that, described core body is arranged in described hollow bulb.
5. slimming according to claim 1 combination inductor structure, is characterized in that, when described upper cover body to engage with described plate body and coated described core body and described flat coil time, described two pin portions expose from described two line outlet grooves.
6. an assemble method for slimming combined electrical sensor, is characterized in that, comprise the following steps:
A, flat coil is arranged on plate body upper surface on and make two foot portions not correspond to two line outlet grooves;
B, core body is plugged in the hollow bulb of described flat coil;
C, engage upper cover body and described plate body closely sealed and coated described core body and described flat coil, and described two foot portions are not exposed from described line outlet groove.
7. the assemble method of slimming combined electrical sensor according to claim 6, it is characterized in that, described steps A also comprises:
A1, on upper surface flat coil being arranged on plate body after, by described two pin portions bending and pass from described two line outlet grooves.
8. the assemble method of slimming combined electrical sensor according to claim 7, it is characterized in that, described A1 also comprises:
A11, the described two pin portions of exposing to be bent again, with make to be positioned at described plate body lower surface and from two accommodation sections that described line outlet groove extends to the inside the accommodating described two pin portions again bent.
9. an assemble method for slimming combined electrical sensor, is characterized in that, comprise the following steps:
D, core body is placed on the upper surface of plate body;
E, flat coil is arranged on described plate body upper surface on and described core body is set in the hollow bulb of described flat coil, and make two foot portions not correspond to two line outlet grooves;
F, by described two pin portions bending and pass from described two line outlet grooves;
G, engage upper cover body and described plate body and coated described core body and described flat coil, and described two foot portions are not exposed from described two line outlet grooves.
10. the assemble method of slimming combined electrical sensor according to claim 9, it is characterized in that, described step F also comprises:
F1, the described two pin portions of exposing to be bent again, with make to be positioned at described plate body lower surface and from two accommodation sections that described line outlet groove extends to the inside the accommodating described two pin portions again bent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310399240.9A CN104425097A (en) | 2013-09-05 | 2013-09-05 | Thin combined inductor structure and assembly method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310399240.9A CN104425097A (en) | 2013-09-05 | 2013-09-05 | Thin combined inductor structure and assembly method thereof |
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| CN104425097A true CN104425097A (en) | 2015-03-18 |
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| CN201310399240.9A Pending CN104425097A (en) | 2013-09-05 | 2013-09-05 | Thin combined inductor structure and assembly method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108631045A (en) * | 2017-03-23 | 2018-10-09 | 三星电机株式会社 | Piece type antenna |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0831640A (en) * | 1994-07-13 | 1996-02-02 | Matsushita Electric Works Ltd | Inductance and transformer |
| CN1367507A (en) * | 2001-01-20 | 2002-09-04 | 台达电子工业股份有限公司 | Ultra-thin inductor |
| CN1619723A (en) * | 2003-11-10 | 2005-05-25 | 东光株式会社 | Surface mounted sensor |
| TWM350081U (en) * | 2008-04-29 | 2009-02-01 | ming-ming Xie | Inductor structure |
| CN203521104U (en) * | 2013-09-05 | 2014-04-02 | 重庆美桀电子科技有限公司 | Thin combined inductor structure |
-
2013
- 2013-09-05 CN CN201310399240.9A patent/CN104425097A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0831640A (en) * | 1994-07-13 | 1996-02-02 | Matsushita Electric Works Ltd | Inductance and transformer |
| CN1367507A (en) * | 2001-01-20 | 2002-09-04 | 台达电子工业股份有限公司 | Ultra-thin inductor |
| CN1619723A (en) * | 2003-11-10 | 2005-05-25 | 东光株式会社 | Surface mounted sensor |
| TWM350081U (en) * | 2008-04-29 | 2009-02-01 | ming-ming Xie | Inductor structure |
| CN203521104U (en) * | 2013-09-05 | 2014-04-02 | 重庆美桀电子科技有限公司 | Thin combined inductor structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108631045A (en) * | 2017-03-23 | 2018-10-09 | 三星电机株式会社 | Piece type antenna |
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