CN208299051U - A kind of multifrequency car antenna - Google Patents
A kind of multifrequency car antenna Download PDFInfo
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- CN208299051U CN208299051U CN201820625945.6U CN201820625945U CN208299051U CN 208299051 U CN208299051 U CN 208299051U CN 201820625945 U CN201820625945 U CN 201820625945U CN 208299051 U CN208299051 U CN 208299051U
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- antenna
- chassis
- multifrequency
- frequency range
- rib
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- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 230000005855 radiation Effects 0.000 claims description 29
- 239000004020 conductor Substances 0.000 claims description 19
- 238000005452 bending Methods 0.000 claims description 6
- 230000010287 polarization Effects 0.000 claims description 5
- 241000251730 Chondrichthyes Species 0.000 claims description 3
- 241001442589 Convoluta Species 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 3
- 238000004891 communication Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003137 locomotive effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229960001866 silicon dioxide Drugs 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to the antenna houses that a kind of multifrequency car antenna includes chassis and is mounted on the chassis, mutiple antennas is fixed on the chassis, the data transmission frequencies of multiple antennas are different, multifrequency car antenna provided by the utility model, in use, chassis need to be only mounted or placed to surface of vehicle, it is easy for installation, and multiple frequency ranges can be covered simultaneously, more meet the demand of people.
Description
Technical field
The utility model relates to locomotive antenna technical field, especially a kind of multifrequency car antenna.
Background technique
Locomotive system is usually by different types of antenna (including " 2G " communication antenna, " 4G communication " antenna, satellite navigation day
Line etc.) it is mounted or placed at the roof of surface of vehicle such as vehicle respectively, and synthesized multiple antennas by combiner in intra-locomotive
All the way, to cover and be operated in multiple frequency ranges.
It is perfect with " LKJ " system (locomotive operation monitor record system), different types of antenna is installed respectively or
The mode for being placed in surface of vehicle has been far from satisfying the demand of people.
Utility model content
Therefore, the utility model provides a kind of multifrequency car antenna, to solve the above problem.
The technical solution of the utility model is: a kind of multifrequency car antenna, including chassis and is mounted on the chassis
Antenna house, mutiple antennas is fixed on the chassis, and the data transmission frequencies of multiple antennas are different.
Optionally, the multiple antenna includes first antenna, and the data for 2G, 3G or 4G frequency range are transmitted；Second
Antenna, the wireless data transmission for wifi frequency range；Third antenna, the data for GPS/BD (Beidou) frequency range are transmitted.
Optionally, the data of 2G, 3G or 4G frequency range are the data of 800-2700MHz frequency range；The wifi frequency range
Wireless data is wireless " 802.11 " data of 2400-2500MHz frequency range；
Optionally, the data of the 800-2700MHz frequency range include the data and 1710- of 800-950MHz frequency range
The data of 2700MHz frequency range.
Optionally, the first antenna is placed vertically, and forms of radiation is vertically polarized wave, and radiation direction is left and right directions,
The left and right directions is with headstock direction of travel be before to for reference；Second antenna is horizontal positioned, and forms of radiation is water
Flat polarized wave, radiation direction are horizontal omnidirectional；The third antenna is horizontal positioned, and forms of radiation is right-handed circular polarization, radiation side
To for horizontal omnidirectional.
Optionally, the chassis is electric conductor；First electric conductor and first antenna form microstrip circuit, are fixed on institute
It states on chassis, first electric conductor and first antenna are contacted with the chassis, and radiator is collectively formed；Second antenna
It is fixed on the chassis, the second electric conductor is provided on second antenna, second electric conductor is contacted with the chassis.
Optionally, the forms of radiation with radiation direction of multiple antennas are different.
Optionally, the shape of the antenna house is shark fins shape.
Optionally, the chassis includes fixing seat and attachment base, and multiple antennas are fixed on the attachment base；It is described
It is arranged fluted in fixing seat, the shape of the attachment base and the shape of the groove match, and are fixed in the groove,
It is provided with elastic cushion between the bottom of the groove and the attachment base, multiple helical vents are provided on the elastic cushion
Hole；The bottom of the fixing seat is provided with hollow chamber, and the bottom of the groove is provided with multiple connection hollow chamber
Through-hole, multiple through-holes are arranged in a one-to-one correspondence with multiple ventholes；Breather cheek valve is provided in the fixing seat
And one-way exhaust valve, the uniline intake valve are connected to the one-way exhaust valve respectively at the hollow chamber.
Optionally, the elastic cushion includes elastic pad body, and it is identical to be provided with multiple height on the elasticity pad body
The rib of protrusion is greater than the width of the rib between two sides positioned at the width of the rib of two sides, forms recess portion between adjacent rib, described recessed
Helical vent hole is arranged in the bottom in portion, is also equipped with helical vent hole on the rib of two sides；The both ends of the rib of two sides are provided with
Supporter, the outer edge of the rib of two sides are provided with bending section, and the crooked position is in two supports at the both ends of corresponding rib
Between body.
Multifrequency car antenna provided by the utility model, in use, only chassis need to be mounted or placed to surface of vehicle i.e.
Can, it is easy for installation, and multiple frequency ranges can be covered simultaneously, more meet the demand of people.
Detailed description of the invention
Fig. 1 is a kind of explosive view of multifrequency car antenna provided by the utility model；
Fig. 2 is a kind of structural schematic diagram on the chassis of multifrequency car antenna provided by the invention；
Fig. 3 is sectional view of the Fig. 2 in the direction A-A；
Fig. 4 is a kind of structural schematic diagram of elastic cushion；
Wherein, chassis -11；Antenna house -12；First antenna -13；Second antenna -14；Third antenna -15；First conductance
Body -16；Second electric conductor -17；Fixing seat -18；Attachment base -19；Groove -20；Elastic cushion -21；Helical vent hole -22；In
Plenum chamber -23；Through-hole -24；Breather cheek valve -25；One-way exhaust valve -26；Elastic pad body -27；The rib -28 of protrusion；Support
Body -29；Bending section -30；Counterbore -202.
Specific embodiment
The technical solution of the utility model is described in detail with reference to the accompanying drawing.
The utility model provides a kind of multifrequency car antenna, referring to Fig. 1, including chassis 11 and is mounted on the chassis
Antenna house 12, mutiple antennas is fixed on the chassis, the data transmission frequencies of multiple antennas are different, in general, institute
Antenna house is stated to be fastened on the chassis.
Multifrequency car antenna provided by the utility model, in use, only chassis need to be mounted or placed to surface of vehicle i.e.
Can, it is easy for installation, and multiple frequency ranges can be covered simultaneously, more meet the demand of people.
As a kind of specific scheme, the multiple antenna includes: first antenna 13, is used for 2G, 3G or 4G frequency range
Data transmission；Second antenna 14, the wireless data transmission for wifi frequency range；Third antenna 15 is used for GPS/BD (Beidou)
The data of frequency range are transmitted.2G, 3G or 4G frequency range, wifi frequency range and GPS/BD frequency range be it is well known to those skilled in the art, generally
, the data of 2G, 3G or 4G frequency range are the data of 800-2700MHz frequency range, the data packet of the 800-2700MHz frequency range
Include the data of 800-950MHz frequency range and the data of 1710-2700MHz frequency range；The wireless data of the wifi frequency range is 2400-
Wireless " 802.11 " data of 2500MHz or 5800MHz frequency range；The data of the GPS/BD frequency range are 1200-1650MHz frequency range
Data.
In order to achieve the purpose that its 3 internal antenna works at the same time and do not generate interference, applicant makees 3 antennas
Antenna Design optimization, radiation polarization mode, filtering, physically-isolated processing, so that three sections of antennas are not easy to interfere with each other, specifically
, as shown in Figure 1, the first antenna is placed vertically, forms of radiation is vertically polarized wave, and radiation direction is left and right directions, institute
To state left and right directions be with headstock direction of travel be before to for reference；Second antenna is horizontal positioned, and forms of radiation is level
Polarized wave, radiation direction are horizontal omnidirectional；The third antenna is horizontal positioned, and forms of radiation is right-handed circular polarization, radiation direction
For horizontal omnidirectional.
As a preferred solution, the chassis is electric conductor；First electric conductor 16 and the formation of first antenna 13
Microstrip circuit is fixed on the chassis, and first electric conductor and first antenna are contacted with the chassis, and spoke is collectively formed
Beam；By setting electric conductor for chassis, and the first electric conductor is contacted with the chassis, so that radiator is collectively formed,
Radiation efficiency is higher；
Second antenna is fixed on the chassis, is provided with the second electric conductor 17 on second antenna, and described
Two electric conductors are contacted with the chassis, so that radiator be collectively formed, radiation efficiency is higher.In general, third line is active day
Line is horizontally arranged, and is only received and is not emitted, and is responsible for receiving navigation communication signal.
In the application, by the forms of radiation of multiple antennas and radiation direction difference, mutiple antennas is effectively avoided
That claps interferes with each other.It should be noted that first antenna, the second antenna and third antenna can be arranged in the form of circuit board.
Since third antenna is also horizontal polarization, in order to further prevent with the second antenna interference, applicant is by third day
Line and the second antenna, which carry out appropriate space, is isolated, and pulls open their distance as far as possible, and first antenna is set to the second antenna and the
Between triantennary, space isolation is not only carried out, while difference is arranged in the height of the second antenna and third antenna, they are carried out
Upper lower leaf, so that horizontal radiation direction, not in same level, two antennas reach Net long wave radiation isolation.
In order to effectively reduce car resistance, the shape of the antenna house is shark fins shape as shown in Figure 1.
The multifrequency car antenna of the application, integration degree is high, small in size, light-weight for three internal antennas, three days
Line does not interact, and does not need to install additional combining equipment again and carries out the sigtnal interval from equipment usage amount on vehicle being effectively reduced, thus greatly
It is big to reduce use cost.More meet the demand of people.
It is well known that being affected by temperature for electronic component, in order to reduce the temperature of the inner antenna as far as possible
Fluctuation, applicant have also done following design, and referring to figs. 2 and 3, the chassis includes fixing seat 18 and attachment base 19, Duo Gesuo
Antenna is stated to be fixed on the attachment base；
Fluted 20 are arranged in the fixing seat, the shape of the attachment base and the shape of the groove match, and solid
Due in the groove, in general, threaded hole 201 can be arranged in the bottom surface of groove, attachment base is fixed on by bolt recessed
In slot, elastic cushion 21 is provided between the bottom of the groove and the attachment base, rubber pad generally can be used in elastic cushion
Or silicagel pad should be provided in the case where fixed using bolt fixed connecting base on elastic cushion and pass through for bolt certainly
Hole, fixed for convenience, the counterbore 202 of setting and threaded hole cooperation on attachment base, for shelving nuts, certain counterbore it is outer
Side can be gap as shown in Figure 2, and multiple helical vent holes 22 are provided on the elastic cushion, waveform also can be used
Venthole replaces, and certain general venthole can also be with only effect is good not as good as helical vent hole effect；The fixing seat
Bottom is provided with hollow chamber 23, and the bottom of the groove is provided with the through-hole 24, Duo Gesuo of multiple connection hollow chamber
Through-hole is stated to be arranged in a one-to-one correspondence with multiple ventholes；Breather cheek valve 25 and one-way exhaust are provided in the fixing seat
Valve 26, the uniline intake valve and the one-way exhaust valve are connected to the hollow chamber respectively, for one-way air inlet and unidirectionally
Exhaust.In use, the influence shaken in vehicle (especially train) movement, elastic cushion shrink and expand to buffer vehicle vibration
When attachment base vibration, to be conducive to protect first antenna, the second antenna and third antenna, meanwhile, elastic cushion vibration compression
It when with diastole, squeezes and tensile coil shape venthole, flows car antenna inner air, when compression, gas is by unidirectionally arranging
Air valve is vented outwards, and when stretching, by breather cheek valve air inlet, is not completed and is exchanged with extraneous gas, thus be conducive to radiate, when
So one-way exhaust valve and breather cheek valve can also be separately connected valve, when ambient temperature is lower, close valve, lead to
It crosses elastic cushion and plays certain insulation effect, and elastic cushion constantly compresses and diastole also generates a little heat, be conducive to remain more
Frequency car antenna internal temperature；As a kind of better way, exhaust check valve is fixedly connected with pipe, nozzle is exposed at outside vehicle body,
Breather check valve is fixedly connected with pipe, nozzle introduces vehicle body by air conditioner exhaust system, due to vehicle body proper temperature,
Therefore, either external environment be it is cold or hot, intake valve air inlet be conducive to adjust multifrequency car antenna internal temperature.
As a preferred solution, referring to fig. 4, above-mentioned elastic cushion includes elastic pad body 27, the elasticity pad body
On be provided with the rib 28 of the identical protrusion of multiple height, the width (left and right directions in figure) positioned at the rib of two sides is greater than between two sides
Rib width, this is stuck in groove also for the ribs of two sides is made, recess portion is formed between adjacent rib, the recess portion
Helical vent hole 22 is arranged in bottom, is also equipped with helical vent hole on the rib of two sides, is preferably also provided with certainly convenient to use
Hole, such as the hole 31 passed through for the second electric conductor 17；The both ends of the rib of two sides are provided with supporter 29, the rib of two sides it is outer
Edge is provided with bending section 30, it is understood that be curved plane, the crooked position in the both ends of corresponding rib two
Between a supporter, the shape of certain fixing seat upper groove should be matched with the elastic cushion, so that elastic cushion can be stuck in groove.
When in use, due to the presence of recess portion and rib when elastic cushion shrinks and expands, rib is in contraction and expansion for the elastic cushion of the structure
Left and right directions is easier to deform, thus extruding and tensile coil shape venthole in left and right directions, to be more advantageous to the friendship of gas
It changes, in addition, by setting supporter and bending section, to be more advantageous to the deformation of supporter two sides, and bending section makes elasticity
Pad outer edge deformation when close to the helical vent hole of different location it is compressed and stretch and compression and stretch direction not
Together, multiple helical vent holes on the rib of two sides can be made to change multiplicity, having to open in same time venthole has relaxation, more favorably
The exchange of gas near the rib of two sides, and due to the presence of recess portion, reduce elastic cushion and attachment base contact area (when
So, install is that recess portion opening should be upward), it prevents attachment base and elastic cushion contact area is excessive causes contact site heat dissipation not
It is good.
The utility model preferred embodiment and embodiment are explained in detail above in conjunction with attached drawing, but this
Utility model is not limited to the above embodiment and embodiment, within the knowledge of those skilled in the art, may be used also
With various changes can be made without departing from the concept of the premise utility.It in the claims, should not will be between bracket
Any reference symbol as limitations on claims.Word "comprising" does not exclude the presence of element not listed in the claims
Or step.The use of word first, second and third etc. does not indicate any sequence, these words can be construed to title.
Claims (9)
1. a kind of multifrequency car antenna, which is characterized in that including chassis (11) and the antenna house (12) being mounted on the chassis,
Mutiple antennas is fixed on the chassis, the data transmission frequencies of multiple antennas are different；
The chassis includes fixing seat (18) and attachment base (19), and multiple antennas are fixed on the attachment base；
It is arranged in the fixing seat fluted (20), the shape of the attachment base and the shape of the groove match, and fixed
In in the groove, being provided between the bottom of the groove and the attachment base elastic cushion (21), it is arranged on the elastic cushion
There are multiple helical vent holes (22)；
The bottom of the fixing seat is provided with hollow chamber (23), and the bottom of the groove is provided with multiple connection hollow cavities
The through-hole (24) of room, multiple through-holes are arranged in a one-to-one correspondence with multiple ventholes；
Breather cheek valve (25) and one-way exhaust valve (26), the breather cheek valve and the list are provided in the fixing seat
It is connected to exhaust valve respectively at the hollow chamber.
2. a kind of multifrequency car antenna according to claim 1, which is characterized in that the multiple antenna includes:
First antenna (13), the data for 2G, 3G or 4G frequency range are transmitted；
Second antenna (14), the wireless data transmission for wifi frequency range；
Third antenna (15), the data for GPS/BD frequency range are transmitted.
3. a kind of multifrequency car antenna according to claim 2, it is characterised in that:
The data of 2G, 3G or 4G frequency range are the data of 800-2700MHz frequency range；
The wireless data of the wifi frequency range is wireless " 802.11 " data of 2400-2500MHz or 5800 frequency ranges.
4. a kind of multifrequency car antenna according to claim 3, which is characterized in that the number of the 800-2700MHz frequency range
According to the data of the data and 1710-2700MHz frequency range that include 800-950MHz frequency range.
5. a kind of multifrequency car antenna according to claim 2, which is characterized in that
The first antenna is placed vertically, and forms of radiation is vertically polarized wave, and radiation direction is left and right directions, the left and right directions
To for reference before to be with headstock direction of travel be；
Second antenna is horizontal positioned, and forms of radiation is horizontal polarized wave, and radiation direction is horizontal omnidirectional；
The third antenna is horizontal positioned, and forms of radiation is right-handed circular polarization, and radiation direction is horizontal omnidirectional.
6. a kind of multifrequency car antenna according to claim 5, which is characterized in that
The chassis is electric conductor；
First electric conductor (16) and first antenna (13) form microstrip circuit, are fixed on the chassis, first electric conductor
It is contacted with the chassis with first antenna, radiator is collectively formed；
Second antenna is fixed on the chassis, is provided on second antenna the second electric conductor (17), described second
Electric conductor is contacted with the chassis.
7. a kind of multifrequency car antenna according to claim 1, which is characterized in that the forms of radiation of multiple antennas and
Radiation direction is different.
8. a kind of multifrequency car antenna according to claim 1, which is characterized in that the shape of the antenna house is shark fins
Shape.
9. a kind of multifrequency car antenna according to claim 1, which is characterized in that the elastic cushion includes elastic pad body
(27), the rib (28) of the identical protrusion of multiple height is provided on the elastic pad body, the width positioned at the rib of two sides is greater than
The width of rib between two sides forms recess portion between adjacent rib, and helical vent hole (22) are arranged in the bottom of the recess portion, and two
Helical vent hole is also equipped on the rib of side；
The both ends of the rib of two sides are provided with supporter (29), and the outer edge of the rib of two sides is provided with bending section (30), described curved
Pars convoluta is located between two supporters at the both ends of corresponding rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820625945.6U CN208299051U (en) | 2018-04-27 | 2018-04-27 | A kind of multifrequency car antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820625945.6U CN208299051U (en) | 2018-04-27 | 2018-04-27 | A kind of multifrequency car antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208299051U true CN208299051U (en) | 2018-12-28 |
Family
ID=64703043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820625945.6U Withdrawn - After Issue CN208299051U (en) | 2018-04-27 | 2018-04-27 | A kind of multifrequency car antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208299051U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108777373A (en) * | 2018-04-27 | 2018-11-09 | 北京航威大洋微波科技有限公司 | A kind of multifrequency car antenna |
-
2018
- 2018-04-27 CN CN201820625945.6U patent/CN208299051U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108777373A (en) * | 2018-04-27 | 2018-11-09 | 北京航威大洋微波科技有限公司 | A kind of multifrequency car antenna |
| CN108777373B (en) * | 2018-04-27 | 2023-12-22 | 北京航威大洋微波科技有限公司 | Multi-frequency vehicle-mounted antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181228 Effective date of abandoning: 20231222 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20181228 Effective date of abandoning: 20231222 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |