Summary of the invention
In order to solve problems of the prior art, the invention provides a kind of antenna built-in structure, utilize this structure can make the signal that antenna well receives to be needed, satisfy the demand that is installed in the wireless device on the vehicle, a kind of Mobile multi-media broadcasting device also is provided simultaneously, by the antenna built-in structure solution Mobile multi-media broadcasting device antenna external problem of antenna when being placed in the vehicle, simultaneously can realize good audio visual effect, to achieve these goals, the present invention is by the following technical solutions:
A kind of antenna built-in structure, described antenna built-in structure places the vehicle, and described antenna built-in structure comprises the headrest on antenna and described vehicle seat top, it is characterized in that, described headrest comprises the sidepiece that closes on vehicle window, and described antenna is located at the described sidepiece of described headrest.
Further, described headrest comprises that inside is the weighting material of a cavity and the head rest cover that is coated on the weighting material outside, and described antenna places the inboard of the described weighting material of the described sidepiece of described headrest.
Further, described antenna place the described weighting material of the described sidepiece of described headrest or described weighting material and described head rest cover between.
Further, described antenna is fixed in the outside face of the described head rest cover of the described sidepiece of described headrest.
The present invention also provides a kind of Mobile multi-media broadcasting device, comprise: signal receives and processing module, comprise: antenna, motherboard and power lead, described signal receives with processing module by described antenna receiving signal, the signal of described antenna reception is converted to video and audio signal and output, described power lead connects vehicle power, and described antenna is positioned at the side of described motherboard; Display module receives described signal and receives described video and audio signal and the broadcast of exporting with processing module; Stuck-module is fixed on described signal reception and processing module and described display module on the described vehicle; Headrest, comprise that rear portion, bottom, cavity and close on the sidepiece of vehicle window, described signal reception and processing module, described display module and described stuck-module are positioned at the described cavity of described headrest, described display module exposes from the described rear portion of described headrest, and described antenna is located at the described sidepiece of described headrest.
Further, described motherboard bottom also is equipped with screened housing.
Further, described signal receives with processing module and also comprises face frame, casing, and described motherboard is packed between described casing and described the frame through described casing and captiveing joint of described frame, and described antenna is positioned at the outer side of described casing.
Further, described signal receives with processing module and also comprises platen bracket, and described motherboard is packed between described casing and the described platen bracket through described casing and captiveing joint of described platen bracket; Described display module is positioned at the top of described platen bracket, and described display module exposes from described frame, and described display module is packed between described frame and the described platen bracket through described frame and captiveing joint of described platen bracket.
Further, described stuck-module comprises supporting module, be installed in the adapter plate and two and the affixed pipe link of described supporting module of described supporting module, the described vehicle are automobile, described signal receives with processing module and is installed on the described adapter plate of described stuck-module, and the described bottom that the described pipe link of described stuck-module passes described headrest is plugged in two default slots of upper end, described car seat.
Further, sidewall is extended in described adapter plate bottom, and the lateral surface of described sidewall is cambered surface crooked in described adapter plate; Described sidewall is fixed the metallic paper identical with described sidewall arc shape; Described antenna is relative with described sidewall cambered surface.
A kind of antenna built-in structure of the present invention, arrange cleverly the position of antenna, realized good signal reception, because antenna is put in headrest, can not affect the outward appearance of vehicle interior, can not counteract to operation, the problems such as the wiring that antenna places the vehicle to cause is complicated, line fault is more have been solved outward with the Mobile multi-media broadcasting device of this antenna built-in structure, simultaneously, this device can the Real-time Obtaining broadcast program, and obtain good audio visual effect, and this Mobile multi-media broadcasting device is easy for installation, the utmost point is suitable for promoting.
The specific embodiment
The invention will be further described below in conjunction with the drawings and the specific embodiments.
Shown in Figure 1 is a kind of antenna built-in structure, this antenna built-in structure is placed in the vehicle, this structure comprises antenna 12 and headrest 3, headrest 3 is positioned at vehicle seat top, headrest 3 is made of weighting material 36 and head rest cover 35, be a cavity 33 in the weighting material 36 of headrest 3, headrest 3 has the sidepiece 34 that closes on vehicle window, and antenna 12 is placed on the inboard of the weighting material 36 of headrest 3 sidepieces 34.
When using, head rest cover can be fabric, can be leather or other materials also, has coating function and gets final product; Selection about weighting material is preferably sponge, other material can in head rest cover, form the headrest shape just can, when forming cavity, can select the material of flexibility to coat weighting material with head rest cover; The rod aerial that antenna is selected in this figure embodiment, it also can be PCB antenna etc., antenna has been placed on the inboard of weighting material, in the weighting material of the sidepiece that also can being placed on rests the head on closes on vehicle window, perhaps be placed between weighting material and the head rest cover, the perhaps outer surface of head rest cover, the preferred thinner antenna of antenna when being placed on the head rest cover outer surface.
Figure 2 shows that the structure exploded perspective view of Mobile multi-media broadcasting device of the present invention, this device comprises that signal receives and processing module 1, stuck-module 2, headrest 3 and display module 4, Mobile multi-media broadcasting device is installed on the seat of upper end with the reservation slot at two intervals by stuck-module 2, and be coated and fixed module 2, signal of headrest 3 receives and processing module 1 and display module 4.
Signal receives with processing module 1 and comprises motherboard 11, antenna 12, power lead 13, face frame 14, platen bracket 15, casing 16 and eyeglass 17.Motherboard 11 is positioned at casing 16, and casing 16 is captiveed joint with the platen bracket 15 on motherboard 11 tops, so that motherboard 11 is fixed in the casing 16; Casing 16 bottoms are provided with protuberance 162,162 3 hollow outs of this protuberance, and be upturned, the top of protuberance 162 is butted on the bottom surface of motherboard 11, with motherboard 11 Elastic Contact, plays the effect of damping; On the motherboard 11 CMMB module 111 can be installed, signal receives and the signal of processing module 1 by 12 outputs of CMMB module 111 receiving wires, and signal is converted to Audio and Video, by the broadcast of display module 4.In the bottom of motherboard 11 screened housing 112 has been installed, has been prevented that signal that motherboard 11 sends from causing interference to the reception of multimedia broadcast signal and video, audio frequency.Power lead 13 connects vehicle power, the work that receives with processing module 1 and display module 4 for signal provides electric energy, in Mobile multi-media broadcasting device shown in Figure 1, only have power lead 13 need be connected to outside the Mobile multi-media broadcasting device, improve the reliability of this device work.
Display module 4 comprises read-out 41 and loudspeaker 42, and read-out 41 is positioned at the top of platen bracket 15, and simultaneously, read-out 41 exposes from face frame 14, and platen bracket 15 and face frame 14 are captiveed joint by screw, and read-out 41 is fixedly mounted between platen bracket 15 and the face frame 14.
Face frame 14, platen bracket 15 and casing 16 materials all can be engineering plastics, adopt the mode of injection moulding by the mould manufacturing, face frame 14 and casing 16 can be selected screw connecting mode with the mode that is fixedly mounted with of platen bracket 15, also can set out in advance snap fit and the draw-in groove of snapping when Mould Machining; Motherboard 11 has been installed CMMB module 111, and the module of other receiving broadcast signals also can be installed.
Enlarged drawing shown in identifying in a with reference to the Fig. 2 shown in Fig. 2 .1, human inductor 142 has been exposed on face frame 14 surfaces, can have influence on the outward appearance of the integral body of Mobile multi-media broadcasting device, eyeglass 17 can be installed on face frame 14 tops, eyeglass 17 is provided with through hole 171, and this human inductor 142 is in the through hole 171 on the eyeglass 17, but does not protrude from eyeglass 17, in the situation that does not affect human inductor 142 functions, guaranteed the outward appearance of the integral body of Mobile multi-media broadcasting device.
Stuck-module 2 comprises adapter plate 21, supporting module 22 and pipe link 23, adapter plate 21 is fixedly mounted on the supporting module 22, two pipe links 23 are captiveed joint with supporting module 22, movement that can be horizontal with the affixed junction surface of pipe link 23 on the supporting module 22, and then change the distance of 23 of two pipe links, with the distance between the slot that adapts to two intervals reserving the upper end, car seat.
Adapter plate 21 can use the mode of injection moulding to make, and the material of pipe link 23 can be metal, such as the steel that is difficult for getting rusty of copper, aluminium or modification, also can be rigid plastic; When using, for the ease of wiring, pipe link 23 can design the cavity of hollow, and the power lead 13 that connects signal reception and processing module 1 and vehicle power passes this cavity.
Headrest 3 has a rear portion 31, bottom 32, cavity 33 and sidepiece 34, wherein sidepiece 34 closes on the vehicle window setting, signal receives the cavity 33 that is positioned at headrest 3 with processing module 1, stuck-module 2, display module 4, and the read-out 41 of display module 4 exposes from 3 the rear portion 31 of resting the head on; Set in advance two slots in car seat upper end, the bottom 32 that the pipe link 23 of stuck-module 2 passes headrest 3 is inserted in the slot on the car seat, this Mobile multi-media broadcasting device is fixed on the top of car seat backrest.
The hole that the pattern that headrest 3 has adopted cavernous body outer cladding leather layer, the read-out 41 that display module 4 is set respectively in headrest 3 rear portions 31 and bottom 32 expose and supply the pipe link 23 of stuck-module 2 to pass.When mounted, can be first adapter plate 21 and the supporting module 22 of stuck-module 2 be fixedly mounted with, again signal is received with processing module 1 and be fixedly mounted with together with display module 4, then signal is received with processing module 1 and be installed on the adapter plate 21, to not install the stuck-module 2 of pipe link 23 and signal receive pack the cavity 33 of headrest 3 with processing module 1 into from 3 the rear portion 31 of resting the head in, the read-out 41 that guarantees display module 4 exposes from 3 rear portions 31 of resting the head on, then the hole of passing on headrest 3 bottoms 32 is packed in pipe link 23 on the supporting module 22, cavity 33 can be slightly less than signal and receive and processing module 1, stuck-module 2 and display module 4 make headrest 3 closely coat signal and receive and processing module 1, stuck-module 2 and display module 4.
Antenna 12 can be telescopic antenna, PCB antenna, FPC antenna, hardware frame antenna or magnetoelectric composites antenna etc., comparatively traditional method of designing is to adopt telescopic antenna, antenna is located at vehicle top or other positions, the kind of antenna increases, for the selection of antenna provides multiple reference, such as PCB antenna, FPC antenna, magnetoelectric composites antenna etc., these antenna can be sticked on roof.
Antenna 12 is arranged on headrest 3 the sidepiece that closes on vehicle window 34, and is relative with the extended sidewall in adapter plate 21 bottoms in the stuck-module 2 212; At this moment, antenna 12 can be selected telescopic antenna, PCB antenna, FPC antenna, hardware frame antenna or magnetoelectric composites antenna, and antenna 12 is positioned at the cavernous body of the sidepiece 34 of headrest 3.Can post layer of metal paper tinsel 213 on the sidewall 212 of adapter plate 21, attenuated signal receives the interference that receives signal with 1 pair of antenna of processing module 12; Receive the intensity of signal in order further to strengthen antenna 12, the sidewall 212 of adapter plate 21 is arranged to cambered surface, this cambered surface is towards adapter plate 21 interior bendings, metallic paper 213 shapes are identical with the shape of cambered surface, on the line that the cambered surface that is positioned at antenna 12 converges, can be the face of cylinder such as this cambered surface, antenna 12 be positioned on the axis on this face of cylinder.
With reference to Fig. 3 and Fig. 4, Figure 3 shows that the casing 16 of main frame and the adapter plate 21 of stuck-module, be provided with draw-in groove 161 on casing 16 sidewalls, in the bottom surface of casing 16 dorsad casing 16 vertical extend two columns 163, all be provided with tapped bore 1631 on each column 163, casing 16 has also comprised the screw 164 that matches with tapped bore 1631 simultaneously; The draw-in groove 161 of adapter plate 21 corresponding casing 16 sidewalls is provided with snap fit 211, be provided with the open-work (not shown) that to pass for the column of casing 16 in the bottom of adapter plate 21, the outside at open-work, bottom surface by adapter plate 21 vertically extends riser 214, and this riser 214 is with the through hole 2141 coaxial with column 163 tapped bore 1631.
Fig. 4 is the erection plan of casing 16 and adapter plate 21, corresponding draw-in groove 161 snappings on the snap fit 211 of adapter plate 21 and the casing 16, the snap fit 211 that casing 16 and adapter plate 21 upsides are corresponding is combined closely with draw-in groove 161, and the snap fit 211 that casing 16 and adapter plate 21 downsides and sidepiece are corresponding is combined with draw-in groove 161 gaps; At this moment, casing 16 columns 163 pass the open-work of adapter plate 21 bottoms and the riser 214 of adapter plate 21 is fitted, tapped bore 1631 on the column 163 is coaxial with the through hole 2141 on the riser 214, the through hole 2141 that screw 164 passes on the riser 214 is spirally connected with tapped bore 1631 on the column 163, the shell fragment 215 that adapter plate 21 shown in Fig. 2 upwarps is butted on the bottom surface of casing 16, plays the effect of damping.
The snap fit that casing is corresponding with the main dependence casing of being fixedly mounted with of adapter plate and adapter plate upside and draw-in groove combine closely and screw passes the realization that is spirally connected of through hole on the riser and the tapped bore on the column, main frame is installed on the stuck-module by being fixedly mounted with of casing and adapter plate, when dismounting, remove casing and main frame can be separated with stuck-module with adapter plate.When being applied to headrest coating main frame and stuck-module, the hole of bottom by headrest screws out screw, because it is to combine closely that the snapping of casing and adapter plate only has the snap fit of upside and draw-in groove, can easily main frame be taken out from the rear portion of resting the head on, main frame is placed under repair or installs some elements additional.Needed at main frame face frame table face tapped bore to be set for the ease of dismounting in the past, and can destroy whole outward appearance; For take into account attractive in appearance and be convenient to dismantle adopt snap fit normally snap fit be combined with the gap of draw-in groove so that the main frame installation is built on the sand; For the snap fit of taking into account attractive in appearance and firm employing is easy to form fast knot, so that main frame is difficult to dismounting.
Fig. 5 shows the Mobile multi-media broadcasting device after the assembling, in this Fig. 5, the read-out 41 of display module exposes from 3 the rear portion of resting the head on, loudspeaker 42 are located at the top of face frame 14, human inductor 142 is located at the bottom of face frame 14, the pipe link 23 of stuck-module stretches out from 3 the bottom of resting the head on, and this pipe link 23 is provided with cavity, and power lead 13 passes from this cavity.Human inductor 142 as induction towards there not being the passenger, can be made the action of shutdown at read-out according to this, also be provided with switch and regulate button on face frame 14, and this Mobile multi-media broadcasting device also can dispose remote controller.
Antenna 12 shown in Figure 6 is a kind of composite electromagnetic material antenna, comprise media substrate 121, feeder line 124, be attached to the sheetmetal 125 on medium substrate 121 surfaces, feeder line 124 is by coupled modes feed-in sheetmetal 125, hollow out has micro groove structure 123 to form metal routing 122 at sheetmetal 125 on the sheetmetal 125, at the end formation feedback point 126 of feeder line 124.
Antenna micro groove structure 123 shown in Figure 6 is opening helical ring structures, micro groove structure 123 also can be a kind of in complementary opening resonance loop structure, complementary helix structure, opening helical ring structure, two opening helical ring structure, the complementary folding line structure or by several structures in front derive, compound or a micro groove structure that the group battle array obtains.Derive and be divided into two kinds, a kind of is that geometric configuration is derived, another kind is that expansion is derived, and geometric configuration is herein derived and referred to that function class derives like, variform structure, is for example derived to class of a curve structure, triangle class formation and other different polygon class formation by the square frame class formation.
In addition, antenna shown in Figure 6 only has one group of feeder line and feedback point and corresponding micro groove structure, and two groups or more feeder line and feedback point and corresponding micro groove structure also can be arranged, and each group can be symmetrical arranged, and also can be arranged in the media substrate surface according to actual requirement.
Medium substrate can be made by stupalith, High molecular material, ferroelectric material, ferrite material or ferromagnetic material.Preferably, being made by High molecular material, can be the High molecular materials such as FR-4, F4B particularly.Sheetmetal is copper sheet or silver strip.Be preferably copper sheet, cheap, conduct electricity very well.Feeder line is selected with the same material of sheetmetal and is made.Be preferably copper.
The processing and manufacturing of magnetoelectric composites antenna among the present invention as long as satisfy principle of design of the present invention, can be adopted various manufactures.Prevailing method is to use the manufacture method of all kinds of printed circuit board (PCB)s (PCB), certainly, metallized through hole, the PCB of double-sided copper-clad makes also can satisfy processing request of the present invention.Except this processing mode, can also introduce according to the actual needs other manufacturing process, (RFID is the abbreviation of Radio Frequency Identification such as RFID, be REID, be commonly called as electronic tag) but in the processing mode that makes up of the processing mode of flexible PCB processing, iron plate antenna of employed conductive silver paste printing ink processing mode, all kinds of deformation devices and iron plate and PCB.Wherein, iron plate and PCB combination processing mode refers to utilize the accurate processing of PCB to finish the processing of antenna micro groove structure, finishes other slave part with iron plate.In addition, can also process by etching, plating, brill quarter, photoetching, electronics is carved or ion is carved method.
Mobile multi-media broadcasting device of the present invention can be used on the vehicle widely, include but not limited on automobile, train, aircraft, can be widely used in the seat of automobile, train, aircraft as the Mobile multi-media broadcasting device that is used for spinal support top of specific embodiment.
The invention is intended to set forth a kind of antenna built-in structure, be to solve that antenna is placed on the vehicle or near the problem vehicle window in the vehicle, a kind of Mobile multi-media broadcasting device of built-in antenna is provided simultaneously, preferably display module and signal are received and the processing module Integral design, also specify in an embodiment, placement location and type selecting to antenna also provide kinds of schemes, such as telescopic antenna, the PCB antenna, the FPC antenna, hardware frame antenna or magnetoelectric composites antenna etc., antenna is positioned at headrest, can not affect the overall image of the place vehicle.
Below only be the description to embodiments of the invention, can not consist of restriction of the present invention, all be within protection scope of the present invention in the development of the situation that does not break away from aim of the present invention.