CN208028206U - Non-contact directional coil in high precision - Google Patents
Non-contact directional coil in high precision Download PDFInfo
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- CN208028206U CN208028206U CN201820329815.8U CN201820329815U CN208028206U CN 208028206 U CN208028206 U CN 208028206U CN 201820329815 U CN201820329815 U CN 201820329815U CN 208028206 U CN208028206 U CN 208028206U
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Abstract
The non-contact directional coil of high-precision provided by the utility model comprising：Coil body, the coil body using longitudinal winding displacement, i.e., with roll vertical direction；Lead end, the lead end are used to be electrically connected with the external world, including the line end of coil body and buttock line end；The lead end offers soldering opening.The utility model is applied to RF antennas, at low cost, simple structure, and resistance is low with the error rate of impedance.
Description
Technical field
The utility model is mainly used in remote untouchable accurate identification or short distance induction type identification field, especially
Refer to the non-contact directional coil of high-precision.
Background technology
Existing RF antennas mostly use the soft PCB or FR4 PCB of PFC, and the technology of use is that copper or corrosion copper are applied on base material
The technique of foil, maximum defect are product cost height, and homogeneity of product is poor, be easy to cause oscilator drift, and identification is accurate
Rate is low, causes accidentally to know or wrong knowledge, security performance decline.
Therefore, the prior art could be improved and improve.
Utility model content
Place, the mesh of the utility model are to provide a kind of non-contact orientation of high-precision in view of above-mentioned deficiencies of the prior art
Coil.
In order to achieve the above object, the utility model takes following technical scheme：
Non-contact directional coil in high precision comprising：
Coil body, the coil body using longitudinal winding displacement, i.e., with roll vertical direction；
Lead end, the lead end are used to be electrically connected with the external world, including the line end of coil body and buttock line end；It is described
Lead end offers soldering opening.
Preferably, the coil body is all made of polyurethane enamelled copper wire with lead end and is made.
Compared with prior art, the utility model greatly reduces production cost compared to traditional FR antennas；This practicality
It is novel to use polyurethane enamelled copper wire for basic material, it is easy buying, diameter precision is high, and error reaches 0.01MM, produces work
Skill is simple, using self-adhesion（Hot melt or alcohol are molten）Technique, consistency is good after formed product, and through multiple development test, resistivity is missed
Difference is within positive and negative 3/1000ths, and impedance error rate is within 5/1000ths；In addition, being further opened with welding on the lead end
Mouthful, to avoid after lead end is connect with support circuit, the problem of being easy to fall off.
Description of the drawings
Fig. 1 is the front view of the non-contact directional coil preferred embodiment of the utility model high-precision.
Fig. 2 is the side view of the non-contact directional coil preferred embodiment of the utility model high-precision.
Specific implementation mode
To keep the purpose of this utility model, technical solution and effect clearer, clear, develop simultaneously implementation referring to the drawings
The utility model is further described in example.It should be appreciated that specific embodiment described herein is only explaining this practicality
It is novel, it is not used to limit the utility model.
The non-contact directional coil of high-precision provided by the utility model, refers to Fig. 1-2, as shown, including：
Coil body 100, the coil body 100 using longitudinal winding displacement, i.e., with roll vertical direction；
Lead end 200, the lead end 200 are used to be electrically connected with the external world, include line end and the tail of coil body 100
Line end；The lead end 200 offers soldering opening 300.
Further, the coil body 100 is all made of polyurethane enamelled copper wire with lead end 200 and is made.
In the utility model embodiment, deposited copper is not used or corrodes the mode of production of copper foil, but uses air core coil
Production technology first makes winding clamp, and winding mode does not use the lateral winding displacement mode of normal coil, and uses longitudinal winding displacement side
Formula（With roll vertical direction）, specific size and the line footpath number of turns are subject to support circuit and are required, play line end and buttock line end is respectively stayed
5CM forms lead end 200, and directly welding or connection terminal are required further according to support circuit.
In conclusion the non-contact directional coil of high-precision provided by the utility model comprising：Coil body, the line
Ontology is enclosed using longitudinal winding displacement, i.e., with roll vertical direction；Lead end, the lead end are used to be electrically connected with the external world, packet
Include coil body plays line end and buttock line end；The lead end offers soldering opening.The utility model is applied to RF antennas, cost
It is low, simple structure, and resistance is low with the error rate of impedance；In addition, the lead end and extraneous support circuit or connection terminal
It is not easily to fall off after connection.
It is understood that for those of ordinary skills, can with technical solution according to the present utility model and
The design of its utility model is subject to equivalent substitution or change, and all these changes or replacement should all belong to appended by the utility model
Scope of the claims.
Claims (2)
1. the non-contact directional coil of high-precision, which is characterized in that including：
Coil body, the coil body using longitudinal winding displacement, i.e., with roll vertical direction；
Lead end, the lead end are used to be electrically connected with the external world, including the line end of coil body and buttock line end；The lead
End offers soldering opening.
2. the non-contact directional coil of high-precision according to claim 1, which is characterized in that the coil body and lead end
Polyurethane enamelled copper wire is all made of to be made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820329815.8U CN208028206U (en) | 2018-03-10 | 2018-03-10 | Non-contact directional coil in high precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820329815.8U CN208028206U (en) | 2018-03-10 | 2018-03-10 | Non-contact directional coil in high precision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208028206U true CN208028206U (en) | 2018-10-30 |
Family
ID=63905583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820329815.8U Active CN208028206U (en) | 2018-03-10 | 2018-03-10 | Non-contact directional coil in high precision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208028206U (en) |
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2018
- 2018-03-10 CN CN201820329815.8U patent/CN208028206U/en active Active
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