CN102709022B - Hollow inductance coil and manufacture method - Google Patents
Hollow inductance coil and manufacture method Download PDFInfo
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- CN102709022B CN102709022B CN201210213128.7A CN201210213128A CN102709022B CN 102709022 B CN102709022 B CN 102709022B CN 201210213128 A CN201210213128 A CN 201210213128A CN 102709022 B CN102709022 B CN 102709022B
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Abstract
The present invention relates to a kind of inductance coil, particularly relate to a kind of foldable formed hollow inductance coil and manufacture method thereof, by one in rule geometric sheet metal para-position folding forming, described sheet metal para-position constitutes, after folding, the hollow induction coil part that multilamellar is closed, the two ends extension of described sheet metal forms two electrode pins, it is characterized in that, described sheet metal is the strip sheet metal of a undulate, the strip sheet metal of described undulate is formed by connecting end is tangent by several arc plates, and the opening direction of adjacent circular arc sheet is contrary, the arc length of described arc plate is more than the arc length of the semi arch of same radius.The present invention utilizes two adjacent arc length tangent more than the arc plate of the semi arch arc length of same radius, omits the straight transitions section on sheet metal in prior art, thus reaches to save material, improves the purpose of stock utilization.
Description
Technical field
The present invention relates to a kind of inductance coil, particularly relate to a kind of foldable formed hollow inductance coil and making thereof
Method.
Background technology
Hollow coil is a kind of inducer that can use in high frequency, its simple in construction, and performance is remarkable, and wire rod is advised
Lattice are extensive, are widely used in TV tech, audio-visual technology, microwave technology communication transmitting and receive and power supply
In the electronic products such as filtering.
The multiplex insulated electric conductor of inductance coil in the market turns to, it is also possible to enamel-covered wire, cotton covered wire carry out coiling；
Available cross-section be circular, also available cross-section be the wire rod coiling of rectangle；Can be hollow, can be solid
, line two is exactly inductance two-stage above circuit diagram, and this kind of technique for coiling more bothers, and need special around
Control equipment carries out coiling.
The patent of invention of Application No. 201010220800.6 discloses a kind of hollow inductance coil, such as Fig. 1 and Tu
Shown in 2, by geometric sheet metal 1 para-position folding forming, a described sheet metal 1 para-position folding in rule
After, the geometric figure of geometry coil portion 2 constitutes multilamellar and the hollow induction coil part 5 of balance and symmetry, described gold
The two ends extension 3 belonging to sheet 1 forms two electrode pins.Specifically, described sheet metal 1 is the bar of undulate
Shape sheet metal, is provided with a curtailment half-wave length straight transitions section 4 between corrugated adjacent two half-waves,
Between each adjacent two half-waves, in the middle part of described straight transitions section 4, para-position folds and pieces together closed figure.
Summary of the invention
It is an object of the invention to provide a kind of hollow inductance coil and preparation method thereof, fold in existing para-position
Material is saved, to improve the utilization rate of material on the basis of the hollow inductance coil of molding.
For solving above-mentioned technical problem, the present invention provides a kind of hollow inductance coil, by one in rule geometric figure
Sheet metal para-position folding forming, described sheet metal para-position fold after constitute multilamellar close hollow inductance coil
Portion, the two ends extension of described sheet metal forms two electrode pins, and described sheet metal is the strip of a undulate
Sheet metal, the strip sheet metal of described undulate is formed by connecting end is tangent by several arc plates, and phase
The opening direction of adjacent arc plate is contrary, and the arc length of described arc plate is more than the arc length of the semi arch of same radius.
It is preferred that be provided with a folding position between the adjacent arc plate of each two, described each two adjacent circular arc sheet it
Between according to described folding position fold formed closed figure.
It is preferred that described folding position overlaps with the tangent line of said two adjacent circular arc sheet.
It is preferred that the outer surface of described arc plate is coated with insulating film layer.
It is preferred that the insulant that described insulating film layer is selected is polyethersulfone series, amino paint or polyurethane
In one.
The present invention provides and additionally provides a kind of hollow inductance coil manufacture method, is used for making hollow as above
Inductance coil, step is as follows:
Processing sheet metal；
Insulating film layer is increased in described circular arc external surface；
Described sheet metal is carried out para-position folding.
It is preferred that described sheet metal punching press, chemical attack, cut, electro-discharge machining or speed wire-moving
A kind of machine-shaping in the processing mode cut.
It is preferred that described insulating film layer is brushed, sprays, is printed, powder electrostatic, electrophoresis, electricity application or
One in vacuum impregnation mode completes effectively to cover.
A kind of hollow inductance coil and preparation method thereof that the present invention provides, by one in rule geometric metal
Sheet para-position folding forming, described sheet metal para-position constitutes, after folding, the hollow induction coil part that multilamellar is closed, described
The two ends extension of sheet metal forms two electrode pins, it is characterised in that described sheet metal is a undulate
Strip sheet metal, the strip sheet metal of described undulate is formed by connecting end is tangent by several arc plates,
And the opening direction of adjacent circular arc sheet is contrary, the arc length of described arc plate is more than the arc of the semi arch of same radius
Long.The present invention utilizes two adjacent arc length tangent more than the arc plate of the semi arch arc length of same radius, omits
Straight transitions section on sheet metal in prior art, thus reach to save material, improve the purpose of stock utilization.
Accompanying drawing explanation
Fig. 1 is the half-finished product plate schematic diagram of existing sheet metal configuration formula；
Fig. 2 is the structural representation of existing hollow inductance coil；
Fig. 3 is the half-finished product plate schematic diagram of the sheet metal configuration formula of one embodiment of the invention；
Fig. 4 is the structural representation of the sheet metal of one embodiment of the invention.
In figure: 1-sheet metal, 2-geometry coil portion, 3-two ends extension, 4-straight transitions section, 5-inductance coil
Portion；
10-sheet metal, 11-two ends extension, 12-arc plate, 13-folding position.
Detailed description of the invention
Understandable for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from, below in conjunction with the accompanying drawings to this
The detailed description of the invention of invention is described in detail.
A kind of hollow inductance coil that the present invention provides, as shown in Figure 3 and Figure 4, by one in rule geometric figure
Sheet metal 10 para-position folding forming, described sheet metal 10 para-position fold after constitute multilamellar close hollow inductance
Coil portion, the two ends extension 11 of described sheet metal 10 forms two electrode pins, and described sheet metal 10 is one
The strip sheet metal of undulate, the strip sheet metal of described undulate by several arc plates 12 at end
Tangent being formed by connecting, and the opening direction of adjacent circular arc sheet 12 is contrary, the arc length of described arc plate 12 is more than phase
Arc length with the semi arch of radius.Utilize two adjacent arc length circular arc more than the semi arch arc length of same radius
Sheet 12 is tangent, omits the straight transitions section on sheet metal in prior art, after the doubling of described sheet metal 10,
Have the part of overlap between the arc plate 12 that each two is adjacent, and in prior art, each two adjacent half
Setback poststack one complete circle of composition, thus reach to save material, improve the purpose of stock utilization.
It is preferred that as shown in Figure 4, between the arc plate 12 that each two is adjacent, it is provided with a folding position 13, described
Fold according to described folding position 13 between each two adjacent circular arc sheet 12 and form closed figure.It is preferred that it is described
Folding position 13 overlaps with the tangent line (in figure shown in dotted line) of said two adjacent circular arc sheet 12.
It is preferred that the outer surface of described arc plate 12 is coated with insulating film layer, specifically, described insulating film layer
The insulant selected is in polyethersulfone series (polyamide imide), amino paint or polyurethane
Kind, it has heatproof, the feature of softening wear-resisting, resistance to, preferably reaches the effect of insulation.
The present invention provides and additionally provides a kind of hollow inductance coil manufacture method, is used for making hollow as above
Inductance coil, step is as follows:
Processing sheet metal 10；
Insulating film layer is increased at described circular arc 12 outer surface；
Described sheet metal 10 is carried out para-position folding.
It is preferred that described sheet metal 10 punching press, chemical attack, cut, electro-discharge machining or be careful soon
A kind of machine-shaping in the processing mode of silk thread cutting.
It is preferred that described insulating film layer is brushed, sprays, is printed, powder electrostatic, electrophoresis, electricity application or
One in vacuum impregnation mode completes effectively to cover.
Described two ends are stretched out by the hollow inductance coil that the hollow inductance coil manufacture method that the present invention provides makes
Portion 11, directly as two electrode pins, removes the butt-joint process of hollow induction coil part and electrode pin from, thus
Save material further.
In sum, hollow inductance coil that the present invention provides and preparation method thereof, as shown in Figure 3 and Figure 4,
By one in rule geometric sheet metal 10 para-position folding forming, described sheet metal 10 para-position fold after constitute
The hollow induction coil part that multilamellar is closed, the two ends extension 11 of described sheet metal 10 forms two electrode pins,
Described sheet metal 10 is the strip sheet metal of a undulate, and the strip sheet metal of described undulate is by some
Individual arc plate 12 is formed by connecting end is tangent, and the opening direction of adjacent circular arc sheet 12 is contrary, described circular arc
The arc length of sheet 12 is more than the arc length of the semi arch of same radius.Utilize two adjacent arc length more than same radius
The arc plate 12 of semi arch arc length tangent, omit the straight transitions section on sheet metal in prior art, thus
Reach to save material, improve the purpose of stock utilization.
Obviously, those skilled in the art can carry out various change and modification without deviating from the present invention to the present invention
Spirit and scope.So, if the present invention these amendment and modification belong to the claims in the present invention and etc.
Within the scope of technology, then the present invention is also intended to comprise these change and modification.
Claims (3)
1. a hollow inductance coil, by geometric sheet metal para-position folding forming, a described sheet metal para-position in rule
Constituting the hollow induction coil part that multilamellar is closed after folding, the two ends extension of described sheet metal forms two electrode pins,
It is characterized in that, described sheet metal is the strip sheet metal of a undulate, the strip sheet metal of described undulate
It is formed by connecting end is tangent by several arc plates, and the opening direction of adjacent circular arc sheet is contrary, described arc plate
Arc length more than the arc length of semi arch of same radius, be provided with a folding position, institute between the arc plate that each two is adjacent
State to fold according to described folding position between each two adjacent circular arc sheet and form closed figure, described folding position and described two
The tangent line of individual adjacent circular arc sheet overlaps.
2. hollow inductance coil as claimed in claim 1, it is characterised in that the outer surface of described arc plate is coated with insulation
Film layer.
3. inductance coil manufacture method as claimed in claim 2, it is characterised in that the insulation material that described insulating film layer is selected
Material is the one in polyethersulfone series, amino paint or polyurethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210213128.7A CN102709022B (en) | 2012-06-26 | 2012-06-26 | Hollow inductance coil and manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210213128.7A CN102709022B (en) | 2012-06-26 | 2012-06-26 | Hollow inductance coil and manufacture method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102709022A CN102709022A (en) | 2012-10-03 |
| CN102709022B true CN102709022B (en) | 2016-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210213128.7A Active CN102709022B (en) | 2012-06-26 | 2012-06-26 | Hollow inductance coil and manufacture method |
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| Country | Link |
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| CN (1) | CN102709022B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021626B (en) * | 2012-11-30 | 2016-04-13 | 芜湖科伟兆伏电子有限公司 | A kind of film inductor and manufacture method |
| CN104008867A (en) * | 2014-06-09 | 2014-08-27 | 信源电子制品(昆山)有限公司 | Metal sheet coil and manufacturing method thereof, inductor, transformer and wireless charger |
| CN105448517A (en) * | 2015-12-26 | 2016-03-30 | 芜湖国睿兆伏电子有限公司 | Transformer coil fabrication tool and transformer coil fabrication method |
| WO2019169745A1 (en) * | 2018-03-07 | 2019-09-12 | 东莞领益精密制造科技有限公司 | Charging coil stamping manufacturing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1574127A (en) * | 2003-06-09 | 2005-02-02 | 松下电器产业株式会社 | Inductance part and electronic apparatus therewith |
| CN1674169A (en) * | 2004-03-22 | 2005-09-28 | 三集瑞科技股份有限公司 | Inductive coil |
| CN101315829A (en) * | 2007-06-01 | 2008-12-03 | 台达电子工业股份有限公司 | Conductive winding structure and transformer device using the same |
| CN102314992A (en) * | 2010-06-29 | 2012-01-11 | 信源电子制品(昆山)有限公司 | Hollow induction coil |
| CN202736629U (en) * | 2012-06-26 | 2013-02-13 | 信源电子制品(昆山)有限公司 | Air core inductor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4378956B2 (en) * | 2003-01-17 | 2009-12-09 | パナソニック株式会社 | Choke coil and electronic device using the same |
-
2012
- 2012-06-26 CN CN201210213128.7A patent/CN102709022B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1574127A (en) * | 2003-06-09 | 2005-02-02 | 松下电器产业株式会社 | Inductance part and electronic apparatus therewith |
| CN1674169A (en) * | 2004-03-22 | 2005-09-28 | 三集瑞科技股份有限公司 | Inductive coil |
| CN101315829A (en) * | 2007-06-01 | 2008-12-03 | 台达电子工业股份有限公司 | Conductive winding structure and transformer device using the same |
| CN102314992A (en) * | 2010-06-29 | 2012-01-11 | 信源电子制品(昆山)有限公司 | Hollow induction coil |
| CN202736629U (en) * | 2012-06-26 | 2013-02-13 | 信源电子制品(昆山)有限公司 | Air core inductor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102709022A (en) | 2012-10-03 |
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