CN107464654A - A kind of broadband high stable inductor in high frequency - Google Patents
A kind of broadband high stable inductor in high frequency Download PDFInfo
- Publication number
- CN107464654A CN107464654A CN201710892285.8A CN201710892285A CN107464654A CN 107464654 A CN107464654 A CN 107464654A CN 201710892285 A CN201710892285 A CN 201710892285A CN 107464654 A CN107464654 A CN 107464654A
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- China
- Prior art keywords
- high frequency
- inductor
- broadband
- connector
- inductance core
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- 239000002184 metal Substances 0.000 claims abstract description 19
- 238000001771 vacuum deposition Methods 0.000 claims description 3
- 229910010293 ceramic material Inorganic materials 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 238000004153 renaturation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/02—Fixed inductances of the signal type without magnetic core
- H01F17/03—Fixed inductances of the signal type without magnetic core with ceramic former
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F19/00—Fixed transformers or mutual inductances of the signal type
- H01F19/04—Transformers or mutual inductances suitable for handling frequencies considerably beyond the audio range
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/022—Encapsulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
- H01F27/292—Surface mounted devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Multimedia (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Coils Or Transformers For Communication (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention provides a kind of broadband high stable inductor in high frequency, it includes metal shielding box, band BNC connector panel, inductance core and two panels connector, the inductance core is arranged on band BNC connector panel, the two panels connector is placed in metal shielding box with being connected with BNC connector panel, it is characterized in that, the inductance core includes inductor, moistureproof cylinder and high frequency wax, and the inductor is placed in moistureproof cylinder, and pours high frequency wax and form inductance core；A kind of broadband high stable inductor in high frequency provided by the invention uses full-closed structure, shield external electromagnetic interference, inductance core uses screw thread barrel structure, higher stability is ensure that, using moistureproof barrel structure, irrigates high frequency wax, it ensure that very low humidity coefficient, and optimal length-width ratio is used, usable frequency is reached 30MHz, meet the requirement of measurement and calibration.
Description
Technical field
The present invention relates to inductor field, and in particular to a kind of broadband high stable inductor in high frequency.
Background technology
In order to calibrate LCR test set and electric impedance analyzer, except needing high frequency capacitance standard and resistance standard device
Outside, it is also necessary to inductor in high frequency.
In the prior art, manufacture high-power high-frequency inductor generally using after rope-lay strand or cable parallel connection in magnet ring
Coiling, as ZL201611191788.4 discloses a kind of high-power annular inductor in high frequency, the inductor in high frequency includes annular magnetic
Core and coil, although the inductor in high frequency can form high power, frequency range is narrow and long-time stability are poor, magnet ring coiling circle
Number is few, it is impossible to meets the requirement of measurement and calibration；And for example ZL201520991671.9 discloses a kind of paster high-frequency inductor, is provided with
Unshakable in one's determination and two magnetic conduction sheets, increase the high frequency characteristics of inductance, but inductance precision in high frequency, stability, low humidity coefficient
It is poor with anti-interference, it is impossible to meet measurement and calibration requirement.
The content of the invention
In view of this, to solve above-mentioned the problems of the prior art, the invention provides a kind of broadband high stable high frequency
Inductor, there is the advantages of available frequency bandwidth, long-term high stability, good environmental adaptability, low humidity coefficient, external interference are few.
To achieve these goals, technical scheme is as follows：
A kind of broadband high stable inductor in high frequency, including：Metal shielding box, band BNC connector panel, inductance core and two panels
Connector, the inductance core are arranged on band BNC connector panel, and the two panels connector is connected juxtaposition with BNC connector panel
In metal shielding box；The inductance core includes inductance device, moistureproof cylinder and high frequency wax, and the inductance device is placed on moistureproof cylinder
In, and pour high frequency wax and form inductance core；
Further, the inductance device includes coiling and thread barrel, and the coiling is wound on thread barrel；
Further, the band BNC connector middle panel is provided with four BNC socket holes；
Further, the thickness with BNC connector panel is 2mm；
Further, the two panels connector is the part of L-type structure, and middle part is provided with macropore, and the two panels connector leads to
Macropore is crossed to be combined with thread barrel both ends respectively；
Further, the coiling is wire or vacuum coating；
Further, the thread barrel is made up of high-frequency ceramic material；
Further, the ratio of the diameter of the thread barrel and length is 1:2.85, the ratio of line footpath and pitch is 1:
2.25；
Further, the metal shielding box is the metal case of upper shed rectangular parallelepiped structure；
Compared with prior art, a kind of broadband high stable inductor in high frequency provided by the invention uses full-closed structure,
External electromagnetic interference is shielded, inductance core uses screw thread barrel structure, ensure that higher stability, using moistureproof barrel structure, perfusion
High frequency wax, very low humidity coefficient is ensure that, and use optimal length-width ratio, usable frequency is reached 30MHz, meet metering school
Accurate requirement.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of overall structure figure of broadband high stable inductor in high frequency of the present invention；
Fig. 2 is the metal shielding box structure chart of the present invention；
Fig. 3 is the band BNC connector panel structure chart of the present invention；
Fig. 4 is the thread barrel structure chart of the present invention；
Fig. 5 is the moistureproof barrel structure figure of the present invention；
Fig. 6 is the connecting-piece structure figure of the present invention；
Fig. 1 to Fig. 6 includes：1 metal shielding box, 2 band BNC connector panels, 3 connectors, 4 moistureproof cylinders.
Embodiment
In order to facilitate the understanding of the purposes, features and advantages of the present invention, below in conjunction with accompanying drawing and specifically
Embodiment technical scheme is described in detail.It is pointed out that described embodiment is only this hair
Bright part of the embodiment, rather than whole embodiments, based on the embodiment in the present invention, those of ordinary skill in the art are not having
There is the every other embodiment made and obtained under the premise of creative work, belong to the scope of protection of the invention.
As shown in Fig. 1 to Fig. 6, the present invention is achieved like this, a kind of broadband high stable inductor in high frequency bag
Include metal shielding box 1, band BNC connector panel 2, inductance core and two panels connector 3, it is characterised in that the inductance core is arranged on
On band BNC connector panel 2, the two panels connector is placed in metal shielding box 1 with being connected with BNC connector panel 2；The electricity
Sense core includes inductance device, moistureproof cylinder 4 and high frequency wax, and the inductance device is placed in moistureproof cylinder 4, and is poured high frequency wax and formed
Inductance core；
As shown in Fig. 2 the metal shielding box 1 is the metal case of a upper shed；Band BNC connector panel 2 passes through spiral shell
Silk hole is fixed on metal shielding box, forms the box body of closing, shields external electromagnetic interference；
As shown in figure 3, the band BNC connector panel 2 is one piece of metallic plate, there is a through hole corner, through hole allow screw by,
Panel can be fixed on metal shielding box；Middle part is provided with 4 BNC socket holes, for installing BNC socket；It is additionally provided with 4 pieces of spiral shells
Bolt, for installation connecting element；
As shown in Fig. 4 to Fig. 5, the inductance core includes thread barrel, coiling, moistureproof cylinder 4 and high frequency wax, and different electricity are pressed in coiling
Sensibility reciprocal, with wire coiling (or vacuum coating) on thread barrel, inductance device is formed, inductance device is placed in moistureproof cylinder 4, is filled
High-frequency inductor core is formed after noting high frequency wax；
Thread barrel is formed with high-frequency ceramic Precision Machining, ensures high frequency characteristics and stability.Hollow structure can mitigate weight,
The mobility influence that contact is patched on BNC is reduced, improves measurement reproducibility.The diameter at both ends is identical with the aperture of connector, will
It is installed on connector, wire is wound in screw thread；The possible optimal proportion of diameter D and length H of thread barrel is：1:
2.85, line footpath d are with the possible optimal proportions of pitch r：1:2.25；
The band BNC connector panel can use any thickness.Larger thickness can increase the quality of inductor, make plug weight
Renaturation is deteriorated；Less thickness, the mechanical structure of inductance is unstable, poor anti jamming capability so that the bad stability of inductance value.
The optimum thickness of BNC connector panel is 2mm.
It is preferred that the diameter of thread barrel and the ratio of length are 1:2.85, the ratio 1 of line footpath and pitch:2.25.Work as bandwidth
When spending less demanding, other ratios can be used；In addition, when appearance and size changes, above ratio can be varied from.
As shown in fig. 6, the connector 3 is L-type part, bottom is provided with through hole, and screw can be by them connector plate
Fixed on panel；Centre is provided with macropore, and thread barrel is installed on this；Connector plate has two panels, is combined respectively with thread barrel both ends.
In summary, a kind of broadband high stable inductor in high frequency provided by the invention uses full-closed structure, shields outer
Portion's electromagnetic interference, inductance core use screw thread barrel structure, ensure that higher stability, using moistureproof barrel structure, irrigate high frequency wax,
Very low humidity coefficient is ensure that, and uses optimal length-width ratio, usable frequency is reached 30MHz, meets wanting for measurement and calibration
Ask.
Example described above only expresses the several embodiments of patent of the present invention, and its description is more specific and detailed, but
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that for one of ordinary skill in the art
For, on the premise of inventional idea of the present invention is not departed from, various modifications and improvements can be made, these belong to the present invention
The protection domain of patent.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (9)
1. a kind of broadband high stable inductor in high frequency, it includes metal shielding box, band BNC connector panel, inductance core and two panels
Connector, the inductance core are arranged on band BNC connector panel, and the two panels connector is connected juxtaposition with BNC connector panel
In metal shielding box, it is characterised in that the inductance core includes inductance device, moistureproof cylinder and high frequency wax, the inductance device
It is placed in moistureproof cylinder, and pours high frequency wax and form inductance core.
A kind of 2. broadband high stable inductor in high frequency according to claim 1, it is characterised in that：The inductor arrangement
Including coiling and thread barrel, the coiling is wound on thread barrel.
A kind of 3. broadband high stable inductor in high frequency according to claim 1, it is characterised in that：The band BNC connector
Middle panel is provided with four BNC socket holes.
A kind of 4. broadband high stable inductor in high frequency according to claim 1, it is characterised in that：The band BNC connector
The thickness of panel is 2mm.
A kind of 5. broadband high stable inductor in high frequency according to claim 1, it is characterised in that：The two panels connector
For the part of L-type structure, middle part is provided with macropore, and the two panels connector is combined with thread barrel both ends respectively by macropore.
A kind of 6. broadband high stable inductor in high frequency according to claim 2, it is characterised in that：The coiling is metal
Silk or vacuum coating.
A kind of 7. broadband high stable inductor in high frequency according to claim 2, it is characterised in that：The thread barrel is by height
Frequency ceramic material is made.
A kind of 8. broadband high stable inductor in high frequency according to claim 2, it is characterised in that：The thread barrel it is straight
The ratio of footpath and length is 1:2.85, the ratio 1 of line footpath and pitch:2.25.
A kind of 9. broadband high stable inductor in high frequency according to claim 1, it is characterised in that：The metal shielding box
For the metal case of upper shed rectangular parallelepiped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710892285.8A CN107464654A (en) | 2017-09-27 | 2017-09-27 | A kind of broadband high stable inductor in high frequency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710892285.8A CN107464654A (en) | 2017-09-27 | 2017-09-27 | A kind of broadband high stable inductor in high frequency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107464654A true CN107464654A (en) | 2017-12-12 |
Family
ID=60553297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710892285.8A Pending CN107464654A (en) | 2017-09-27 | 2017-09-27 | A kind of broadband high stable inductor in high frequency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107464654A (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB173606A (en) * | 1920-01-29 | 1922-01-04 | Gen Electric | Improvements in electric inductance apparatus |
| GB421263A (en) * | 1932-08-04 | 1934-12-13 | Vogt Hans | High frequency self-induction element |
| EP0090703B1 (en) * | 1982-03-26 | 1987-02-04 | Thomson-Csf | Protection device for a high-frequency, high-power variable inductance |
| CN1119779A (en) * | 1994-06-24 | 1996-04-03 | 宇昌电子工业株式会社 | High-frequency choke oil |
| CN200972823Y (en) * | 2006-11-22 | 2007-11-07 | 孙裕杭 | Large power core-less high frequency transformer |
| CN201655488U (en) * | 2010-04-14 | 2010-11-24 | 优拓电子(广州)有限公司 | High frequency inductor |
| CN203288405U (en) * | 2013-05-16 | 2013-11-13 | 一诺科技股份有限公司 | Leakage inductance adjustment transformer |
| TW201443935A (en) * | 2013-05-15 | 2014-11-16 | Innotrans Technology Co Ltd | Transformer with adjustable leakage inductance |
| CN105137152A (en) * | 2015-08-21 | 2015-12-09 | 华北电力大学 | Ground lead current signal monitoring sensor for end screen of transformer bushing |
| CN205039253U (en) * | 2015-08-31 | 2016-02-17 | 深圳市信维通信股份有限公司 | Electrified becket antenna structure who feels |
| CN205177576U (en) * | 2015-09-18 | 2016-04-20 | 四川大学 | Novel high -frequency transformer framework |
| CN205723052U (en) * | 2016-05-12 | 2016-11-23 | 昆山磁通新材料科技有限公司 | A kind of resistant to elevated temperatures chip inductor |
| CN106226720A (en) * | 2016-08-31 | 2016-12-14 | 广州赛宝计量检测中心服务有限公司 | Four ends of a kind of accurate high q-factor are to high-frequency inductor standard |
| CN205862929U (en) * | 2016-08-04 | 2017-01-04 | 余俊 | A kind of waterproof inductance used in radiator fan |
| CN205943654U (en) * | 2016-08-08 | 2017-02-08 | 诸暨斯通电子有限公司 | Midget inductor of shell encapsulation |
| CN207217217U (en) * | 2017-09-27 | 2018-04-10 | 广州赛宝计量检测中心服务有限公司 | A kind of broadband high stable inductor in high frequency |
-
2017
- 2017-09-27 CN CN201710892285.8A patent/CN107464654A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB173606A (en) * | 1920-01-29 | 1922-01-04 | Gen Electric | Improvements in electric inductance apparatus |
| GB421263A (en) * | 1932-08-04 | 1934-12-13 | Vogt Hans | High frequency self-induction element |
| EP0090703B1 (en) * | 1982-03-26 | 1987-02-04 | Thomson-Csf | Protection device for a high-frequency, high-power variable inductance |
| CN1119779A (en) * | 1994-06-24 | 1996-04-03 | 宇昌电子工业株式会社 | High-frequency choke oil |
| CN200972823Y (en) * | 2006-11-22 | 2007-11-07 | 孙裕杭 | Large power core-less high frequency transformer |
| CN201655488U (en) * | 2010-04-14 | 2010-11-24 | 优拓电子(广州)有限公司 | High frequency inductor |
| TW201443935A (en) * | 2013-05-15 | 2014-11-16 | Innotrans Technology Co Ltd | Transformer with adjustable leakage inductance |
| CN203288405U (en) * | 2013-05-16 | 2013-11-13 | 一诺科技股份有限公司 | Leakage inductance adjustment transformer |
| CN105137152A (en) * | 2015-08-21 | 2015-12-09 | 华北电力大学 | Ground lead current signal monitoring sensor for end screen of transformer bushing |
| CN205039253U (en) * | 2015-08-31 | 2016-02-17 | 深圳市信维通信股份有限公司 | Electrified becket antenna structure who feels |
| CN205177576U (en) * | 2015-09-18 | 2016-04-20 | 四川大学 | Novel high -frequency transformer framework |
| CN205723052U (en) * | 2016-05-12 | 2016-11-23 | 昆山磁通新材料科技有限公司 | A kind of resistant to elevated temperatures chip inductor |
| CN205862929U (en) * | 2016-08-04 | 2017-01-04 | 余俊 | A kind of waterproof inductance used in radiator fan |
| CN205943654U (en) * | 2016-08-08 | 2017-02-08 | 诸暨斯通电子有限公司 | Midget inductor of shell encapsulation |
| CN106226720A (en) * | 2016-08-31 | 2016-12-14 | 广州赛宝计量检测中心服务有限公司 | Four ends of a kind of accurate high q-factor are to high-frequency inductor standard |
| CN207217217U (en) * | 2017-09-27 | 2018-04-10 | 广州赛宝计量检测中心服务有限公司 | A kind of broadband high stable inductor in high frequency |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 510000 76 Zhu Cun road west, Zhu Cun street, Zengcheng District, Guangzhou, Guangdong. Applicant after: Guangzhou CEPREI Calibration and Testing Center Service Co., Ltd. Address before: 510000 Dongguan Zhuang Road, Tianhe District, Guangzhou, Guangdong 110 Applicant before: Guangzhou CEPREI Calibration and Testing Center Service Co., Ltd. |
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| CB02 | Change of applicant information |