CN110957557A - External antenna of vehicle - Google Patents
External antenna of vehicle Download PDFInfo
- Publication number
- CN110957557A CN110957557A CN201911242662.9A CN201911242662A CN110957557A CN 110957557 A CN110957557 A CN 110957557A CN 201911242662 A CN201911242662 A CN 201911242662A CN 110957557 A CN110957557 A CN 110957557A
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- Prior art keywords
- antenna
- cable
- stage
- base
- reset
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- 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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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/08—Means for collapsing antennas or parts thereof
- H01Q1/10—Telescopic elements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/08—Means for collapsing antennas or parts thereof
- H01Q1/084—Pivotable antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
Abstract
The invention discloses an external antenna of a vehicle, which relates to the field of antennas and comprises an installation table and a telescopic antenna, wherein the installation table comprises a base, an arc-shaped cover and a rear cover, the arc-shaped cover is fixedly connected to the base, the rear cover covers the rear end of the arc-shaped cover and is rotatably connected with the base, an inner groove is formed in the base, a motor and a spring seat which are fixedly connected with the base are arranged in the inner groove, a spring is arranged in the spring seat, one end of the spring is connected with the spring seat, the other end of the spring is connected with a stay cable, the front end of the stay cable penetrates out of the spring seat and is connected to the rear cover, the telescopic antenna capable of controlling telescopic is arranged, so that the external antenna can be folded as a ship-shaped antenna to be used under necessary conditions, and can; set up simultaneously flexible antenna and mount table and rotate to be connected to set up the back lid of rotating the connection, make flexible antenna can roll over down in the same place when taking place the touching, avoid hard touching to cause the damage.
Description
Technical Field
The invention relates to the field of antennas, in particular to an external antenna of a vehicle.
Background
At present, the vehicle-mounted antenna is generally in two types, one type is a ship shape, the other type is a thin rod shape, the receiving effect of an antenna signal of the thin rod shape is better, but the antenna of the thin rod shape is easy to touch branches, a door frame and the like and is easy to damage, and particularly, the antenna is easy to touch in the field or in a parking room with a shorter door frame.
The vehicle-mounted antenna of slender rod shape generally adopts elastic material, plays the self preservation effect in the touching, but elasticity is limited, therefore protect the effect generally many times.
Disclosure of Invention
The invention aims to provide an external antenna of a vehicle, which can be used as a ship-shaped antenna by arranging a telescopic antenna capable of controlling the telescopic effect, and can be used as a thin rod-shaped antenna by extending the telescopic antenna on an open road surface, so that the signal receiving capacity is enhanced; set up simultaneously flexible antenna and mount table and rotate to be connected to set up the back lid of rotating the connection, make flexible antenna can roll over down in the same place when taking place the touching, avoid hard touching to cause the damage.
An external antenna of a vehicle comprises a mounting platform and a telescopic antenna, wherein the mounting platform comprises a base, an arc-shaped cover and a rear cover, the arc-shaped cover is fixedly connected to the base, the rear cover covers the rear end of the arc-shaped cover and is rotatably connected with the base, an inner groove is formed in the base, a motor and a spring seat which are fixedly connected with the base are arranged in the inner groove, a spring is arranged in the spring seat, one end of the spring is connected with the spring seat, the other end of the spring is connected with a pull rope, and the front end of the pull rope penetrates out of the spring seat and;
the retractable antenna is connected with the base rotation, and the retractable antenna includes one-level antenna, second grade antenna, tertiary antenna, level four antenna, five-level antenna, control cable and the cable that resets, five-level antenna sliding connection is in the level four antenna, level four antenna sliding connection is in the tertiary antenna, tertiary antenna sliding connection is in the second grade antenna, second grade antenna sliding connection is in the one-level antenna, the motor passes through the extension of control cable control retractable antenna, and the control cable passes one-level antenna, second grade antenna, tertiary antenna and level four antenna and connects on the five-level antenna, the cable control retractable antenna that resets is packed up, and the cable that resets also passes one-level antenna, second grade antenna, tertiary antenna and level four antenna are connected on the five-level antenna.
Preferably, corresponding control cable grooves and reset cable grooves are formed in the first-stage antenna, the second-stage antenna, the third-stage antenna and the fourth-stage antenna, the control cable grooves are formed in the side walls of the antennas and are in an inverted U shape, and the reset cable grooves are located at the bottoms of the antennas.
Preferably, the output shaft of the motor is connected with a control cable disc, a perforated box body fixedly connected with the base is arranged outside the control cable disc, one end of the control cable is connected to the side wall of the bottom of the five-stage antenna, the other end of the control cable penetrates through the perforated box body and is wound on the control cable disc, one end of the reset cable is connected to the center of the bottom of the five-stage antenna, and the other end of the reset cable is connected to the wire collecting box.
Preferably, a reset cable disc is arranged in the wire winding box, the reset cable disc is rotatably connected to the wire winding box through a connecting rod, a torsion spring is arranged between the reset cable disc and the wire winding box, and the reset cable is wound on the reset cable disc.
Preferably, a pair of fixing plates is fixedly connected in the inner groove, the primary antenna is rotatably connected to the fixing plates, and the bottom of the primary antenna is rotatably connected with the roller.
Preferably, the top of first order antenna, second grade antenna, tertiary antenna and level four antenna all is equipped with spacing arch, be equipped with corresponding spacing groove on second grade antenna, tertiary antenna, level four antenna and the level five antenna, still be equipped with the antenna cap on the level five antenna.
The invention has the advantages that: the telescopic antenna capable of controlling the telescopic is arranged, so that the external antenna can be folded as a ship-shaped antenna to be used under necessary conditions, and can be extended to be used as a thin rod-shaped antenna on an open road surface, and the signal receiving capacity is enhanced; set up simultaneously flexible antenna and mount table and rotate to be connected to set up the back lid of rotating the connection, make flexible antenna can roll over down in the same place when taking place the touching, avoid hard touching to cause the damage.
Drawings
FIG. 1 is a schematic view of the antenna configuration of the device of the present invention when stowed;
FIG. 2 is a schematic view of the antenna of the device of the present invention in an extended configuration;
FIG. 3 is a schematic view of the internal structure of the arc-shaped cover of the device of the present invention;
FIG. 4 is an enlarged view of portion A of FIG. 3;
FIG. 5 is a schematic view of the connection between the bottom of the retractable antenna and the base of the device of the present invention;
FIG. 6 is a cross-sectional view of the retractable antenna of the apparatus of the present invention when retracted;
FIG. 7 is a cross-sectional view of the telescoping antenna portion of the device of the present invention shown extended;
FIG. 8 is an enlarged view of portion B of FIG. 7;
FIG. 9 is a cross-sectional view of a tertiary antenna in the apparatus of the present invention;
FIG. 10 is a schematic view of the construction of the control cable reel of the apparatus of the present invention;
FIG. 11 is a schematic view of the internal structure of a take-up box in the apparatus of the present invention;
the antenna comprises an installation table 1, an installation table 10, a base 100, an inner groove 11, an arc cover 12, a rear cover 13, a motor 130, a control cable disc 14, a spring groove 15, a spring 16, a pull cable 17, a box body 18, a fixing plate 2, a telescopic antenna 20, a first-stage antenna 21, a second-stage antenna 22, a third-stage antenna 23, a fourth-stage antenna 24, a fifth-stage antenna 25, a control cable 250, a control cable groove 26, a reset cable 260, a reset cable groove 261, a take-up box 262, a reset cable disc 263, a connecting rod 264, a torsion spring 27, a limit protrusion 270, a limit groove 28, a roller 29 and an antenna cap.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 4, an external antenna for a vehicle comprises an installation platform 1 and a telescopic antenna 2, wherein the installation platform 1 comprises a base 10, an arc-shaped cover 11 and a rear cover 12, the arc-shaped cover 11 is fixedly connected to the base 10, the rear cover 12 covers the rear end of the arc-shaped cover 11 and is rotatably connected with the base 10, an inner groove 100 is formed in the base 10, a motor 13 and a spring seat 14 which are fixedly connected with the base 10 are arranged in the inner groove 100, a spring 15 is arranged in the spring seat 14, one end of the spring 15 is connected with the spring seat 14, the other end of the spring 15 is connected with a guy cable 16, and the front end of the guy cable 16 penetrates out of the spring;
the telescopic antenna 2 is rotatably connected with the base 10, and the telescopic antenna 2 comprises a primary antenna 20, a secondary antenna 21, a tertiary antenna 22, a quaternary antenna 23, a quintuple antenna 24, a control cable 25 and a reset cable 26, the quinary antenna 24 is slidably connected to the quaternary antenna 23, the quaternary antenna 23 is slidably connected to the tertiary antenna 22, the tertiary antenna 22 is slidably connected in the secondary antenna 21, the secondary antenna 21 is slidably connected in the primary antenna 20, the motor 13 controls the extension of the telescopic antenna 2 through a control cable 25, the control cable 25 passes through the primary antenna 20, the secondary antenna 21, the tertiary antenna 22 and the quaternary antenna 23 to be connected to the quinary antenna 24, the reset cable 26 controls the telescopic antenna 2 to retract, and the reset cable 26 also passes through the primary antenna 20, the secondary antenna 21, the tertiary antenna 22 and the quaternary antenna 23 to be connected to the quinary antenna 24. The telescopic antenna capable of controlling the telescopic is arranged, so that the external antenna can be folded as a ship-shaped antenna to be used under necessary conditions, and can be extended to be used as a thin rod-shaped antenna on an open road surface, and the signal receiving capacity is enhanced; set up simultaneously flexible antenna and mount table and rotate to be connected to set up the back lid of rotating the connection, make flexible antenna can roll over down in the same place when taking place the touching, avoid hard touching to cause the damage.
The first-stage antenna 20, the second-stage antenna 21, the third-stage antenna 22 and the fourth-stage antenna 23 are all internally provided with corresponding control cable slots 250 and reset cable slots 260, the control cable slots 250 are arranged in the side walls of the antennas and are in an inverted U shape, and the reset cable slots 260 are positioned at the bottoms of the antennas. Because the control cable grooves 250 in the primary antenna 20, the secondary antenna 21, the tertiary antenna 22 and the quaternary antenna 23 are inverted U-shaped, and one half of the control cable grooves 250 are semicircular grooves, the control cables 25 can be separated from the semicircular grooves, so that the length of the control cables 25 in the control cable grooves 250 is shortened by about one half. Therefore, when the motor 13 starts to rotate forward, the control cable 25 is retracted, the length is forced to be shortened, and the secondary antenna 21, the tertiary antenna 22, the quaternary antenna 23 and the quinary antenna 24 are forced to extend, so that the control cable 25 is separated from the semicircular control cable groove 250 and retracted.
The output shaft of the motor 13 is connected with a control cable disc 130, a perforated box body 17 fixedly connected with the base 10 is arranged outside the control cable disc 130, one end of the control cable 25 is connected to the side wall of the bottom of the five-stage antenna 24, the other end of the control cable passes through the perforated box body 17 and is wound on the control cable disc 130, one end of the reset cable 26 is connected to the center of the bottom of the five-stage antenna 24, and the other end of the reset cable is connected to the wire collecting box 261. The motor 13 controls the control cable disc 130 to rotate forwards and backwards so as to control the telescopic antenna 2 to extend and retract.
A restoring cable disc 262 is arranged in the wire-rewinding box 261, the restoring cable disc 262 is rotatably connected to the wire-rewinding box 261 through a connecting rod 263, a torsion spring 264 is arranged between the restoring cable disc 262 and the wire-rewinding box 261, and the restoring cable 26 is wound on the restoring cable disc 262. The reset cable disc 262 automatically takes up the cable under the action of the torsion spring 264, so that after the motor 13 releases the cable, the reset cable disc 262 withdraws the reset cable 26, and further the pulled second-stage antenna 21, third-stage antenna 22, fourth-stage antenna 23 and fifth-stage antenna 24 withdraw.
A pair of fixing plates 18 is fixedly connected in the inner groove 100, the primary antenna 20 is rotatably connected to the fixing plates 18, and a roller 28 is rotatably connected to the bottom of the primary antenna 20. The telescopic antenna 2 is rotatably connected with the fixing plate 18 to rotate relative to the base 10.
The top of first order antenna 20, second order antenna 21, tertiary antenna 22 and level four antenna 23 all is equipped with spacing arch 27, be equipped with corresponding spacing groove 270 on second order antenna 21, tertiary antenna 22, level four antenna 23 and the level five antenna 24, still be equipped with antenna cap 29 on the level five antenna 24. The first-stage antenna 20, the second-stage antenna 21, the third-stage antenna 22, the fourth-stage antenna 23 and the fifth-stage antenna 24 are ensured to be tightly connected with each other and prevented from being separated.
The specific implementation mode and principle are as follows:
the telescopic antenna 2 is folded at ordinary times to play a better protection role, if the telescopic antenna needs to be used, the motor 13 starts to rotate forwards, the control cable 25 is folded, the length is forced to be shortened, the second-stage antenna 21, the third-stage antenna 22, the fourth-stage antenna 23 and the fifth-stage antenna 24 are forced to extend out, the control cable 25 is separated from the semicircular control cable groove 250 to be contracted, the telescopic antenna 2 is extended, the external antenna of the vehicle is changed into a thin rod-shaped antenna, and the signal receiving capacity of the antenna is enhanced;
when in the field or other necessary occasions, the telescopic antenna 2 needs to be retracted, the external antenna of the vehicle needs to be changed into a ship-shaped antenna, the protection capability is enhanced, the motor 13 is started to rotate reversely, the control cable 25 with enough length is released, at the moment, the position cable disc 262 automatically takes up the cable under the action of the torsion spring 264, the reset cable disc 262 retracts the reset cable 26, the pulled second-stage antenna 21, third-stage antenna 22, fourth-stage antenna 23 and fifth-stage antenna 24 retract, and the released control cable 25 also returns to the corresponding control cable groove 250.
When the telescopic antenna 2 extends the state, if when objects such as branches are touched to telescopic antenna 2, because telescopic antenna 2 rotates with base 10 to be connected, so telescopic antenna 2 can fall backward by stress automation, simultaneously back lid 12 also rotates with base 10 to be connected, consequently back lid 12 also can fall backward with telescopic antenna 2 together, avoided telescopic antenna 2 to bump hard with the branch and cause the damage, after telescopic antenna 2 breaks away from with the branch, spring 15 automatic contraction, pull 16 retractions of cable, cable 16 then pulls back lid 12 and restores the normal position, back lid 12 takes telescopic antenna 2 to restore the normal position.
Based on the above, the invention has simple structure and flexible use, and the external antenna can be used as a ship-shaped antenna by retracting the telescopic antenna under necessary conditions and can be used as a thin rod-shaped antenna by extending the telescopic antenna on an open road surface by arranging the telescopic antenna capable of controlling the telescopic antenna, so that the signal receiving capability is enhanced; set up simultaneously flexible antenna and mount table and rotate to be connected to set up the back lid of rotating the connection, make flexible antenna can roll over down in the same place when taking place the touching, avoid hard touching to cause the damage.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.
Claims (6)
1. The vehicle external antenna is characterized by comprising an installation platform (1) and a telescopic antenna (2), wherein the installation platform (1) comprises a base (10), an arc-shaped cover (11) and a rear cover (12), the arc-shaped cover (11) is fixedly connected to the base (10), the rear cover (12) covers the rear end of the arc-shaped cover (11) and is rotatably connected with the base (10), an inner groove (100) is formed in the base (10), a motor (13) and a spring seat (14) which are fixedly connected with the base (10) are arranged in the inner groove (100), a spring (15) is arranged in the spring seat (14), one end of the spring (15) is connected with the spring seat (14) while the other end is connected with a guy cable (16), and the front end of the guy cable (16) penetrates out of the spring seat (14) and is connected to the rear cover (12;
the telescopic antenna (2) is rotatably connected with the base (10), the telescopic antenna (2) comprises a first-stage antenna (20), a second-stage antenna (21), a third-stage antenna (22), a fourth-stage antenna (23), a fifth-stage antenna (24), a control cable (25) and a reset cable (26), the fifth-stage antenna (24) is slidably connected into the fourth-stage antenna (23), the fourth-stage antenna (23) is slidably connected into the third-stage antenna (22), the third-stage antenna (22) is slidably connected into the second-stage antenna (21), the second-stage antenna (21) is slidably connected into the first-stage antenna (20), the motor (13) controls the telescopic antenna (2) to extend through the control cable (25), the control cable (25) penetrates through the first-stage antenna (20), the second-stage antenna (21), the third-stage antenna (22) and the fourth-stage antenna (23) to be connected onto the fifth-stage antenna (24), and the reset cable (26) controls the telescopic, the reset cable (26) also passes through the primary antenna (20), the secondary antenna (21), the tertiary antenna (22) and the quaternary antenna (23) and is connected to the quinary antenna (24).
2. The external antenna for vehicle as claimed in claim 1, wherein: all be equipped with corresponding control cable groove (250) and reset cable groove (260) in first order antenna (20), second grade antenna (21), tertiary antenna (22) and level four antenna (23), control cable groove (250) are located the antenna lateral wall to for the shape of falling the U, reset cable groove (260) are located the antenna bottom.
3. The external antenna for vehicle as claimed in claim 1, wherein: the control cable reel (130) is connected to an output shaft of the motor (13), a perforated box body (17) fixedly connected with the base (10) is arranged outside the control cable reel (130), one end of the control cable (25) is connected to the side wall of the bottom of the five-stage antenna (24), the other end of the control cable (25) penetrates through the perforated box body (17) to be wound on the control cable reel (130), one end of the reset cable (26) is connected to the center of the bottom of the five-stage antenna (24), and the other end of the reset cable (26) is connected to the wire collecting box (261).
4. The external antenna for vehicle as claimed in claim 3, wherein: the cable winding device is characterized in that a reset cable disc (262) is arranged in the cable winding box (261), the reset cable disc (262) is rotatably connected to the cable winding box (261) through a connecting rod (263), a torsion spring (264) is arranged between the reset cable disc (262) and the cable winding box (261), and the reset cable (26) is wound on the reset cable disc (262).
5. The external antenna for vehicle as claimed in claim 1, wherein: still fixedly connected with a pair of fixed plate (18) in the inside groove (100), primary antenna (20) rotate to be connected on fixed plate (18), and the bottom of primary antenna (20) rotates and is connected with gyro wheel (28).
6. The external antenna for vehicle as claimed in claim 1, wherein: the top of one-level antenna (20), secondary antenna (21), tertiary antenna (22) and level four antenna (23) all is equipped with spacing arch (27), be equipped with corresponding spacing groove (270) on secondary antenna (21), tertiary antenna (22), level four antenna (23) and level five antenna (24), still be equipped with antenna cap (29) on level five antenna (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911242662.9A CN110957557B (en) | 2019-12-06 | 2019-12-06 | External antenna of vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911242662.9A CN110957557B (en) | 2019-12-06 | 2019-12-06 | External antenna of vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110957557A true CN110957557A (en) | 2020-04-03 |
| CN110957557B CN110957557B (en) | 2021-09-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911242662.9A Active CN110957557B (en) | 2019-12-06 | 2019-12-06 | External antenna of vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110957557B (en) |
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| CN2205992Y (en) * | 1994-09-26 | 1995-08-23 | 彭荣昌 | Collision preventing reset device for automobile aerial |
| CN204905425U (en) * | 2015-09-01 | 2015-12-23 | 嘉兴职业技术学院 | A smart antenna for car |
| CN205406703U (en) * | 2016-02-22 | 2016-07-27 | 上海安费诺永亿通讯电子有限公司 | Car and roof antenna setting device |
| CN207265283U (en) * | 2017-10-13 | 2018-04-20 | 深圳市星颖达实业有限公司 | A kind of tone frequency channel wire accommodating case |
| CN207517885U (en) * | 2017-08-29 | 2018-06-19 | 东莞天速通信技术有限公司 | A kind of Telescopic rotary directional aerial |
| US10008767B2 (en) * | 2016-04-29 | 2018-06-26 | Laird Technologies, Inc. | Vehicle-mount antenna assemblies having outer covers with back tension latching mechanisms for achieving zero-gap |
| CN207705372U (en) * | 2018-01-02 | 2018-08-07 | 天津市中通联信科技有限公司 | A kind of frequency spectrograph telescope signal antenna |
| CN207868378U (en) * | 2017-12-27 | 2018-09-14 | 江苏富尔达机械有限公司 | A kind of automobile shark fins antenna with automatic telescopic function |
| CN208062237U (en) * | 2018-04-04 | 2018-11-06 | 四川瑞云信通科技有限公司 | Vehicle-mounted LTE module signal receiving antenna protective device |
| CN109449567A (en) * | 2018-10-22 | 2019-03-08 | 东莞笛卡尔电子科技有限公司 | A kind of car antenna |
| US20190302809A1 (en) * | 2018-03-30 | 2019-10-03 | Walmart Apollo, Llc | Unmanned vehicle antennae contact sensor systems and methods |
-
2019
- 2019-12-06 CN CN201911242662.9A patent/CN110957557B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2205992Y (en) * | 1994-09-26 | 1995-08-23 | 彭荣昌 | Collision preventing reset device for automobile aerial |
| CN204905425U (en) * | 2015-09-01 | 2015-12-23 | 嘉兴职业技术学院 | A smart antenna for car |
| CN205406703U (en) * | 2016-02-22 | 2016-07-27 | 上海安费诺永亿通讯电子有限公司 | Car and roof antenna setting device |
| US10008767B2 (en) * | 2016-04-29 | 2018-06-26 | Laird Technologies, Inc. | Vehicle-mount antenna assemblies having outer covers with back tension latching mechanisms for achieving zero-gap |
| CN207517885U (en) * | 2017-08-29 | 2018-06-19 | 东莞天速通信技术有限公司 | A kind of Telescopic rotary directional aerial |
| CN207265283U (en) * | 2017-10-13 | 2018-04-20 | 深圳市星颖达实业有限公司 | A kind of tone frequency channel wire accommodating case |
| CN207868378U (en) * | 2017-12-27 | 2018-09-14 | 江苏富尔达机械有限公司 | A kind of automobile shark fins antenna with automatic telescopic function |
| CN207705372U (en) * | 2018-01-02 | 2018-08-07 | 天津市中通联信科技有限公司 | A kind of frequency spectrograph telescope signal antenna |
| US20190302809A1 (en) * | 2018-03-30 | 2019-10-03 | Walmart Apollo, Llc | Unmanned vehicle antennae contact sensor systems and methods |
| CN208062237U (en) * | 2018-04-04 | 2018-11-06 | 四川瑞云信通科技有限公司 | Vehicle-mounted LTE module signal receiving antenna protective device |
| CN109449567A (en) * | 2018-10-22 | 2019-03-08 | 东莞笛卡尔电子科技有限公司 | A kind of car antenna |
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| Publication number | Publication date |
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| CN110957557B (en) | 2021-09-07 |
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