CN202736629U - Air core inductor - Google Patents
Air core inductor Download PDFInfo
- Publication number
- CN202736629U CN202736629U CN 201220302311 CN201220302311U CN202736629U CN 202736629 U CN202736629 U CN 202736629U CN 201220302311 CN201220302311 CN 201220302311 CN 201220302311 U CN201220302311 U CN 201220302311U CN 202736629 U CN202736629 U CN 202736629U
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- CN
- China
- Prior art keywords
- sheet metal
- inductance coil
- arc
- folding
- metal sheet
- 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.)
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Abstract
The utility model relates to an inductor, in particular to an air core inductor formed by folding. The air core inductor is formed by aligning and folding a metal sheet which is in a regular geometric pattern, the metal sheet is aligned and folded, and then an air core inductor part with multilayer sealing is formed. Extending parts at both ends of the metal sheet form two electrode pins, the metal sheet is a wavy strip-shaped metal sheet, the wavy strip-shaped metal sheet is formed by connecting a plurality of circular arc-shaped sheets which intersect at the tail ends, the opening directions of the adjacent circular arc-shaped sheets are opposite, and the arc length of the circular arc-shaped sheet is greater than the arc length of the semicircular arc with the same radius. The air core inductor has the advantage that the two adjacent circular arc-shaped sheets of which the length is greater than the length of the semicircular arc with same radius are utilized, and the linear transition section of the metal sheet in prior art is saved, so the material is saved, and the utilization rate of the material is improved.
Description
Technical field
The utility model relates to a kind of inductance coil, relates in particular to a kind of foldable formed hollow inductance coil.
Background technology
Hollow coil is a kind of inductor that can use under high frequency, and it is simple in structure, and performance is remarkable, and wire gage is extensive, be widely used in TV tech, audio-visual technology, the microwave technology communication transmits and receives and the electronic product such as power filter in.
The multiplex insulated electric conductor of inductance coil in the market turns to, and also can come coiling with enamelled wire, cotton covered wire; Available cross-section be circular, also available cross-section is the wire rod coiling of rectangle; Can be hollow, can be solid, line two is exactly inductance two-stage above the circuit diagram, this kind technique for coiling comparatively bothers, and needs special winding equipment carry out coiling.
Application number is that 201010220800.6 utility model patent discloses a kind of hollow inductance coil, as depicted in figs. 1 and 2, be the geometric sheet metal 1 contraposition folding forming of rule by one, after described sheet metal 1 contraposition is folding, the geometric figure of how much coil portions 2 consists of multilayer and balanced symmetrical hollow inductance coil section 5, and the two ends extension 3 of described sheet metal 1 forms two electrode pins.Particularly, described sheet metal 1 is the strip sheet metal of undulate, between corrugated adjacent two half-waves, be provided with a curtailment half-wave length straight transitions section 4, between each adjacent two half-wave in the folding closed figure that pieces together of described straight transitions section 4 middle part contrapositions.
The utility model content
The purpose of this utility model is to provide a kind of hollow inductance coil, and economical with materials on the basis of the foldable formed hollow inductance coil of existing contraposition is to improve the utilance of material.
For solving the problems of the technologies described above, the utility model provides a kind of hollow inductance coil, be the geometric sheet metal contraposition of rule folding forming by one, consist of the hollow inductance coil section of multilayer sealing after described sheet metal contraposition is folding, the two ends extension of described sheet metal forms two electrode pins, described sheet metal is the strip sheet metal of a undulate, the strip sheet metal of described undulate is by several arc plates tangent being formed by connecting endways, and the opening direction of adjacent arc plate is opposite, and the arc length of described arc plate is greater than the arc length of the semi arch of same radius.
Preferably, be provided with a folding position between per two adjacent arc plates, be folded to form closed figure according to described folding position between described per two adjacent arc plates.
Preferably, described folding position overlaps with the tangent line of described two adjacent arc plates.
Preferably, the outer surface of described arc plate is coated with insulating film layer.
Preferably, a kind of in poly-thiamines imines series, amino lacquer or the polyurethane of the insulating material selected of described insulating film layer.
A kind of hollow inductance coil that the utility model provides, be the geometric sheet metal contraposition of rule folding forming by one, consist of the hollow inductance coil section of multilayer sealing after described sheet metal contraposition is folding, the two ends extension of described sheet metal forms two electrode pins, described sheet metal is the strip sheet metal of a undulate, the strip sheet metal of described undulate is by several arc plates tangent being formed by connecting endways, and the opening direction of adjacent arc plate is opposite, and the arc length of described arc plate is greater than the arc length of the semi arch of same radius.The utility model utilizes two adjacent arc length tangent greater than the arc plate of the semi arch arc length of same radius, omits the straight transitions section on the sheet metal in the prior art, thereby reaches economical with materials, improves the purpose of stock utilization.
Description of drawings
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 the utility model one embodiment;
Fig. 4 is the structural representation of the sheet metal of the utility model one embodiment.
Among the figure: 1-sheet metal, how much coil portions of 2-, 3-two ends extension, 4-straight transitions section, 5-inductance coil section;
10-sheet metal, 11-two ends extension, 12-arc plate, 13-folding position.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.
A kind of hollow inductance coil that the utility model provides, as shown in Figure 3 and Figure 4, be the geometric sheet metal 10 contraposition folding formings of rule by one, consist of the hollow inductance coil section of multilayer sealing after described sheet metal 10 contrapositions are folding, 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, the strip sheet metal of described undulate is by several arc plates 12 tangent being formed by connecting endways, and the opening direction of adjacent arc plate 12 is opposite, and the arc length of described arc plate 12 is greater than the arc length of the semi arch of same radius.Utilize two adjacent arc length tangent greater than the arc plate 12 of the semi arch arc length of same radius, omit the straight transitions section on the sheet metal in the prior art, after described sheet metal 10 doublings, have overlapping part between per two adjacent arc plates 12, and in the prior art, form a complete circle after per two adjacent half-waves are folding, thereby reach economical with materials, improve the purpose of stock utilization.
Preferably, as shown in Figure 4, be provided with a folding position 13 between per two adjacent arc plates 12, be folded to form closed figure according to described folding position 13 between described per two adjacent arc plates 12.Preferably, the tangent line of described folding position 13 and described two adjacent arc plates 12 (among the figure shown in the dotted line) overlaps.
Preferably, the outer surface of described arc plate 12 is coated with insulating film layer, particularly, a kind of in poly-thiamines imines series (polyamide imide), amino lacquer or the polyurethane of the insulating material that described insulating film layer is selected, it has heatproof, wear-resisting, anti-softening characteristics, better reaches the effect of insulation.
Particularly, it is as follows to make the method step of above-mentioned hollow inductance coil:
Processing metal sheet 10;
Increase insulating film layer at described circular arc 12 outer surfaces;
It is folding that described sheet metal 10 is carried out contraposition.
Preferably, a kind of machine-shaping in the processing mode that cuts of described sheet metal 10 usefulness punching presses, chemical corrosion, laser cutting, discharge processing or speed wire-moving.
Preferably, described insulating film layer with brushing, spraying, printing, powder electrostatic, electrophoresis, electricity a kind of in application or the vacuum impregnation mode finish effective covering.
The hollow inductance coil that this method is made directly as two electrode pins, is removed described two ends extension 11 butt-joint process of hollow inductance coil section and electrode pin from, thereby is further saved material.
In sum, the hollow inductance coil that the utility model provides, as shown in Figure 3 and Figure 4, be the geometric sheet metal 10 contraposition folding formings of rule by one, consist of the hollow inductance coil section of multilayer sealing after described sheet metal 10 contrapositions are folding, 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, the strip sheet metal of described undulate is by several arc plates 12 tangent being formed by connecting endways, and the opening direction of adjacent arc plate 12 is opposite, and the arc length of described arc plate 12 is greater than the arc length of the semi arch of same radius.Utilize two adjacent arc length tangent greater than the arc plate 12 of the semi arch arc length of same radius, omit the straight transitions section on the sheet metal in the prior art, thereby reach economical with materials, improve the purpose of stock utilization.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.
Claims (5)
1. hollow inductance coil, be the geometric sheet metal contraposition of rule folding forming by one, consist of the hollow inductance coil section of multilayer sealing after described sheet metal contraposition is 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 is by several arc plates tangent being formed by connecting endways, and the opening direction of adjacent arc plate is opposite, and the arc length of described arc plate is greater than the arc length of the semi arch of same radius.
2. hollow inductance coil as claimed in claim 1 is characterized in that, is provided with a folding position between per two adjacent arc plates, is folded to form closed figure according to described folding position between described per two adjacent arc plates.
3. hollow inductance coil as claimed in claim 2 is characterized in that, described folding position overlaps with the tangent line of described two adjacent arc plates.
4. hollow inductance coil as claimed in claim 1 is characterized in that, the outer surface of described arc plate is coated with insulating film layer.
5. hollow inductance coil as claimed in claim 4 is characterized in that, a kind of in poly-thiamines imines series, amino lacquer or the polyurethane of the insulating material that described insulating film layer is selected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220302311 CN202736629U (en) | 2012-06-26 | 2012-06-26 | Air core inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220302311 CN202736629U (en) | 2012-06-26 | 2012-06-26 | Air core inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202736629U true CN202736629U (en) | 2013-02-13 |
Family
ID=47662304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220302311 Expired - Lifetime CN202736629U (en) | 2012-06-26 | 2012-06-26 | Air core inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202736629U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709022A (en) * | 2012-06-26 | 2012-10-03 | 信源电子制品(昆山)有限公司 | Tubular inductance coil and manufacturing method thereof |
-
2012
- 2012-06-26 CN CN 201220302311 patent/CN202736629U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709022A (en) * | 2012-06-26 | 2012-10-03 | 信源电子制品(昆山)有限公司 | Tubular inductance coil and manufacturing method thereof |
| CN102709022B (en) * | 2012-06-26 | 2016-12-21 | 信源电子制品(昆山)有限公司 | Hollow inductance coil and manufacture method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |