CN207183480U - A kind of automobile antenna filter - Google Patents
A kind of automobile antenna filter Download PDFInfo
- Publication number
- CN207183480U CN207183480U CN201721160996.8U CN201721160996U CN207183480U CN 207183480 U CN207183480 U CN 207183480U CN 201721160996 U CN201721160996 U CN 201721160996U CN 207183480 U CN207183480 U CN 207183480U
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- CN
- China
- Prior art keywords
- transmission line
- section
- circular tube
- wall section
- pcba board
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Abstract
The utility model discloses a kind of automobile antenna filter, including the PCBA board being serially connected with antenna signal transmission line；Antenna signal transmission line includes the first transmission line section and the second transmission line section；PCBA board periphery is set with metal circular tube；First transmission line section and the second transmission line section are respectively protruding into inside circular sleeve by the both ends of metal circular tube；Metal circular tube includes：The first inner wall section run through for the first transmission line section, for accommodating the second inner wall section of PCBA board, and the 3rd inner wall section for supplying the second transmission line section to run through；The full electric insulating sealant of the lumen loading of metal circular tube.The utility model automobile antenna filter, it can guarantee that the first transmission line section, the second transmission line section are reliably connected with PCBA board respectively, and then ensure that filtering performance is reliable, and metal circular tube can play certain effectiveness, can be further ensured that filtering performance.
Description
Technical field
It the utility model is related to a kind of automobile antenna filter.
Background technology
Automobile antenna filter is the device that car antenna is often matched somebody with somebody, and is generally comprised including being serially connected with antenna signal transmission line
Strip PCBA board, antenna signal transmission line is divided into two sections by PCBA board：It is connected with the signal input part of filter circuit
First transmission line section, and the second transmission line section being connected with the signal output part of filter circuit.First transmission line section and second
Transmission line section is only to weld together respectively with PCBA board, and the first transmission line section and the second transmission line section are easy after automobile bumpiness
Come off from PCBA board.
Utility model content
The purpose of this utility model is to provide a kind of automobile antenna filter, and it can guarantee that the first transmission line section, second
Transmission line section is reliably connected with PCBA board respectively, and then ensures that filtering performance is reliable, and metal circular tube can play certain electromagnetism
Shield effectiveness, filtering performance can be further ensured that.
To achieve the above object, the technical solution of the utility model is a kind of automobile antenna filter of design, including is concatenated
In the strip PCBA board on antenna signal transmission line, PCBA board is provided with filter circuit；
The antenna signal transmission line is divided into two sections by PCBA board：First be connected with the signal input part of filter circuit
Transmission line section, and the second transmission line section being connected with the signal output part of filter circuit；
The PCBA board periphery is set with metal circular tube, and the length of metal circular tube is three times of the length of PCBA board；First
Transmission line section and the second transmission line section are respectively protruding into inside circular sleeve by the both ends of metal circular tube；
The internal perisporium of the metal circular tube includes what is axially set gradually along metal circular tube：Run through for the first transmission line section
First inner wall section, for accommodating the second inner wall section of PCBA board, and the 3rd inner wall section for supplying the second transmission line section to run through；First
Inner wall section, the second inner wall section and the 3rd coaxial heart of inner wall section；
The axial length of first inner wall section is identical with the axial length of the 3rd inner wall section, and the axial direction of the first inner wall section
Length is the half of PCBA board length；
The crest clearance of the internal diameter of first inner wall section and the first transmission line section oversheath coordinate, the 3rd inner wall section it is interior
Footpath and the crest clearance of the second transmission line section oversheath coordinate；
The full electric insulating sealant of the lumen loading of the metal circular tube.
Preferably, the periphery wall of the metal circular tube is coated with corrosion-resistant finishes.
The advantages of the utility model and beneficial effect are：A kind of automobile antenna filter is provided, it can guarantee that the first biography
Defeated line segment, the second transmission line section are reliably connected with PCBA board respectively, and then ensure that filtering performance is reliable, and metal circular tube can play
Certain effectiveness, filtering performance can be further ensured that.
Brief description of the drawings
Fig. 1 is schematic diagram of the present utility model.
Embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is further described.Implement below
Example is only used for clearly illustrating the technical solution of the utility model, and can not limit protection model of the present utility model with this
Enclose.
The utility model specific implementation technical scheme be：
As shown in figure 1, a kind of automobile antenna filter, including the strip PCBA board being serially connected with antenna signal transmission line
2, PCBA board 2 is provided with filter circuit；
The antenna signal transmission line is divided into two sections by PCBA board 2：Be connected with the signal input part of filter circuit
One transmission line section 1, and the second transmission line section 3 being connected with the signal output part of filter circuit；
The periphery of PCBA board 2 is set with metal circular tube 4, and the length of metal circular tube 4 is three times of the length of PCBA board 2；
First transmission line section 1 and the second transmission line section 3 are respectively protruding into inside circular sleeve by the both ends of metal circular tube 4；
The internal perisporium of the metal circular tube 4 includes what is axially set gradually along metal circular tube 4：Passed through for the first transmission line section 1
The first inner wall section 5 worn, for accommodating the second inner wall section 6 of PCBA board 2, and for the second transmission line section 3 run through the 3rd in
Wall section 7；The 7 coaxial heart of first inner wall section 5, the second inner wall section 6 and the 3rd inner wall section；
The axial length of first inner wall section 5 is identical with the axial length of the 3rd inner wall section 7, and the first inner wall section 5
Axial length is the half of the length of PCBA board 2；
The internal diameter of first inner wall section 5 and the crest clearance of the oversheath of the first transmission line section 1 coordinate, the 3rd inner wall section 7
Internal diameter and the oversheath of the second transmission line section 3 crest clearance coordinate；
The full electric insulating sealant of the lumen loading of the metal circular tube 4.
The periphery wall of the metal circular tube 4 is coated with corrosion-resistant finishes.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model technical principle is not departed from, some improvements and modifications can also be made, these change
Enter and retouch and also should be regarded as the scope of protection of the utility model.
Claims (2)
- A kind of 1. automobile antenna filter, it is characterised in that including the strip PCBA board being serially connected with antenna signal transmission line, PCBA board is provided with filter circuit；The antenna signal transmission line is divided into two sections by PCBA board：The first transmission being connected with the signal input part of filter circuit Line segment, and the second transmission line section being connected with the signal output part of filter circuit；The PCBA board periphery is set with metal circular tube, and the length of metal circular tube is three times of the length of PCBA board；First transmission Line segment and the second transmission line section are respectively protruding into inside circular sleeve by the both ends of metal circular tube；The internal perisporium of the metal circular tube includes what is axially set gradually along metal circular tube：First run through for the first transmission line section Inner wall section, for accommodating the second inner wall section of PCBA board, and the 3rd inner wall section for supplying the second transmission line section to run through；First inwall Section, the second inner wall section and the 3rd coaxial heart of inner wall section；The axial length of first inner wall section is identical with the axial length of the 3rd inner wall section, and the axial length of the first inner wall section For the half of PCBA board length；The crest clearance of the internal diameter of first inner wall section and the first transmission line section oversheath coordinate, the internal diameter of the 3rd inner wall section with The crest clearance of second transmission line section oversheath coordinates；The full electric insulating sealant of the lumen loading of the metal circular tube.
- 2. automobile antenna filter according to claim 1, it is characterised in that the periphery wall of the metal circular tube is coated with Corrosion-resistant finishes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721160996.8U CN207183480U (en) | 2017-09-12 | 2017-09-12 | A kind of automobile antenna filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721160996.8U CN207183480U (en) | 2017-09-12 | 2017-09-12 | A kind of automobile antenna filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207183480U true CN207183480U (en) | 2018-04-03 |
Family
ID=61745990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721160996.8U Active CN207183480U (en) | 2017-09-12 | 2017-09-12 | A kind of automobile antenna filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207183480U (en) |
-
2017
- 2017-09-12 CN CN201721160996.8U patent/CN207183480U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Gangtian Road Industrial Park in Suzhou city of Jiangsu Province, No. 99 215000 Patentee after: Continental auto parts (Suzhou) Co., Ltd Address before: Gangtian Road Industrial Park in Suzhou city of Jiangsu Province, No. 99 215000 Patentee before: KATHREIN Automotive Products (Suzhou) Co.,Ltd. |