CN202395159U - Signal enhancing structure and mobile multimedia broadcast device - Google Patents
Signal enhancing structure and mobile multimedia broadcast device Download PDFInfo
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- CN202395159U CN202395159U CN201120323012XU CN201120323012U CN202395159U CN 202395159 U CN202395159 U CN 202395159U CN 201120323012X U CN201120323012X U CN 201120323012XU CN 201120323012 U CN201120323012 U CN 201120323012U CN 202395159 U CN202395159 U CN 202395159U
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Abstract
The utility model provides a signal enhancing structure arranged in a device having an antenna. The signal enhancing structure includes a metal foil having a curved surface bending backward to the antenna. The utility model also provides a mobile multimedia broadcast device installed on vehicle. The mobile multimedia broadcast device includes a signal receiving and processing module, a display module and a fixing module. A fixing plate of the fixing module is provided with a side wall having a curved face and a metal foil having the same shape with the side wall. The mobile multimedia broadcast device can reflect a broadcast signal to the antenna. The signal enhancing structure provided by the utility model has a comparatively slight change on the basis of a prior device. The improvement of the capability of receiving antennal signals is realized, and the requirements of the intensity of emitting signals of an emitting machine by the device are lowered. At the same time, the number of base stations is reduced. And the signal enhancing structure provided by the utility model has great meaning in spreading. The mobile multimedia broadcast device having the signal enhancing structure provided by the utility model can improve the signal receiving capability of the antenna in the device and realizes a good visual and audio effect.
Description
Technical field
The utility model belongs to the electromagnetic wave field, relates to the structure that a kind of electromagnetic wave signal strengthens, and also relates to a kind of CMMB device of this structure of application.
Background technology
Along with the development of society, electromagnetic application more and more widely, in order to receive electromagnetic wave; Usually can on device, antenna be housed; Some device adopts the form of external antenna, can receive satisfactory basically signal, and some device can adopt the form of built-in aerial; Tend to cause the bad of signal, the improvement design through antenna can not reach desirable signal reception; The reception that needs better signal for external antenna equally.And it is many in the signal strength signal intensity that strengthens transmitter to improve the not enough method of antenna receiving signal now, perhaps sets up more base station, can cause a lot of equipment inputs like this, and can pollute causing more and more serious electromagnetic wave naturally.
It is more outstanding that the problems referred to above show on mobile wireless device; And be inappropriate for the use external antenna on some equipment that moves; And built-in aerial can not satisfy people's demand; Except the density that strengthens base station construction with the signal emissive porwer that improves transmitter, go back the scheme that neither one well addresses this problem at present.
Summary of the invention
In order to solve the problem that exists in the prior art; The utility model provides a kind of signal to strengthen structure, is installing the curved surface that inner perhaps outer setting one has the reflected electromagnetic wave energy through the needs according to device, and enhance antenna is to the receiving ability of signal; A kind of CMMB device that signal strengthens structure that has is provided simultaneously; Obtained good view reception effect, to achieve these goals, the utility model adopts following technical scheme:
A kind of signal strengthens structure, and said structure is located in the device that has antenna, and said enhancing structure comprises that one has the metal forming of the crooked curved surface of said dorsad antenna.
Further, said metal forming is fixed in the surface of said device case; Said metal forming is fixed in the surface of pcb board in the said device; Said metal forming is the metal forming that is printed on the pcb board.
Further, said curved surface is cambered surface, the face of cylinder or parabola.
The utility model also provides a kind of CMMB device; Be installed on the vehicles; Said CMMB device comprises: signal receives and processing module, comprising: antenna, motherboard and power line, said signal receive with processing module and pass through said antenna receiving signal; The conversion of signals that said antenna is received is video and audio signal and output, and said power line connects vehicle power; Display module receives said signal and receives the said video and audio signal and the broadcast of exporting with processing module; Stuck-module comprises fixed head, and sidewall is extended in said fixed head bottom, and the lateral surface of said sidewall is a cambered surface crooked in said fixed head, and said sidewall is fixed and the identical metal forming of said sidewall arc shape; Said antenna is positioned at the outside of the said sidewall of said fixed head, and is relative with said sidewall cambered surface; Said stuck-module receives said signal with processing module and is fixed on the said vehicles.
Further, said motherboard bottom also is equipped with radome.
Further, said signal receives with processing module and also comprises face frame, casing, and said motherboard is packed between said casing and said the frame through said casing and being fixedly connected of said frame, and said antenna is positioned at the outer side of said casing.
Further, said signal receives with processing module and also comprises platen bracket, and said motherboard is packed between said casing and the said platen bracket through said casing and being fixedly connected of said platen bracket; Said display module is positioned at the top of said platen bracket, and said display module exposes from said frame, and said display module is packed between said frame and the said platen bracket through said frame and being fixedly connected of said platen bracket.
Further; Said mobile multimedia device also comprises: headrest; Said headrest has rear portion, bottom and cavity; Said signal reception and processing module, said display module and said stuck-module are positioned at the said cavity of said headrest, and said display module exposes from the said rear portion of said headrest.
A kind of signal of the utility model strengthens structure and on the basis of original device, makes less change; Can realize the raising of aerial signal receiving ability; Reduced the requirement of device, reduced the number of base station simultaneously, had the meaning of popularization the transmitter transmit signal strength.The utility model also provides the CMMB device of this signal enhancing structure of a kind of application, can improve the aerial signal receiving ability of CMMB device, has obtained good audio visual effect.
Description of drawings
Fig. 1 is the sketch map that a kind of signal strengthens structure;
Fig. 2 is a kind of structure exploded perspective view that signal strengthens the CMMB device of structure that has;
Fig. 2 .1 is the enlarged drawing of border circular areas shown in Fig. 2;
Fig. 3 is the structural representation of casing and fixed head among Fig. 2;
Fig. 4 is the structural representation after casing shown in Figure 3 and fixed head are installed;
Fig. 5 is the overall structure sketch map of CMMB device shown in Figure 2;
Shown in Figure 6 is a kind of structural representation of composite electromagnetic material antenna.
Embodiment
To combine accompanying drawing and embodiment that the utility model is described further below.
Shown in Figure 1 is the structural representation that a kind of signal strengthens structure and place device thereof, and the inner surface of the housing 21 of this device is provided with a groove 211, and this groove has curved surface crooked in housing 21; This curved surface is the face of cylinder; On this groove 211, fixed a metal forming 212, the shape of this metal forming 212 is identical with groove 211, deviate from metal forming 212 curved surfaces towards direction on antenna 12 is set; Inject the electromagnetic signal of metal forming 212 by antenna 12 directions; Under the effect of metal forming 212 curved surfaces, converge towards antenna 12, increased the signal strength signal intensity that antenna 12 receives.
Fig. 1 only shows the situation that metal forming is located at the device case inner surface; Metal forming can also be located at the outer surface of device case; What this moment, device adopted is the external form of antenna; Metal forming can also directly be printed on the pcb board, has the crooked curved surface of antenna dorsad as long as print the pcb board zone of metal forming.About curved surface multiple choices being arranged, can be cambered surface, the face of cylinder and parabola etc., can be according to concrete device and demand setting thereof.
Shown in Figure 2 is the structure exploded perspective view of the utility model CMMB device; This device comprises that signal receives and processing module 1, stuck-module 2, headrest 3 and display module 4; The CMMB device is installed on the seat of reservation slot that the upper end has two intervals through 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 line 13, face frame 14, platen bracket 15, casing 16 and eyeglass 17.Motherboard 11 is positioned at casing 16, and casing 16 is fixedly connected with the platen bracket 15 on motherboard 11 tops, makes motherboard 11 be 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 through 12 outputs of CMMB module 111 reception antennas, and is video and audio frequency with conversion of signals, through the broadcast of display module 4.In the bottom of motherboard 11 radome 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 line 13 connects vehicle power; The work that receives with processing module 1 and display module 4 for signal provides electric energy; In CMMB device shown in Figure 1, have only power line 13 need be connected to outside the CMMB device, improve the reliability of this device work.
Display module 4 comprises display screen 41 and loudspeaker 42, and display screen 41 is positioned at the top of platen bracket 15, and simultaneously, display screen 41 exposes from face frame 14, and platen bracket 15 and face frame 14 are connected through screw, and display screen 41 is fixedly mounted between platen bracket 15 and the face frame 14.
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 CMMB 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; Under the situation that does not influence human inductor 142 functions, guaranteed the outward appearance of the integral body of CMMB device.
Stuck-module 2 comprises fixed head 21, supporting module 22 and connecting rod 23; Fixed head 21 is fixedly mounted on the supporting module 22; Two connecting rods 23 are fixedly connected with supporting module 22; On the supporting module 22 with connecting rod 23 affixed junction surfaces can be horizontal move, and then change the distance of 23 of two connecting rods, with the distance between the slot that adapts to two intervals reserving the upper end, car seat.
Fixed head 21 can use the injection molding way manufacturing, and the material of connecting rod 23 can be a metal, such as the steel that is difficult for getting rusty of copper, aluminium or modification, also can be rigid plastics; When using, for the ease of wiring, connecting rod 23 can design the cavity of hollow, and the power line 13 that connects signal reception and processing module 1 and vehicle power passes this cavity.
It is inner that antenna 12 can also be arranged on the CMMB device, and in order to guarantee to receive the intensity of signal, antenna 12 is arranged on the sidepiece that closes on vehicle window 34 of headrest 3, relative with the extended sidewall in fixed head 21 bottoms in the stuck-module 2 212; At this moment, antenna 12 can be selected telescopic antenna, PCB antenna, FPC antenna, five metals frame antenna or magnetoelectric composites antenna, and antenna 12 is positioned at the sponge of the sidepiece 34 of headrest 3.The sidewall 212 of fixed head 21 is arranged to cambered surface, and this cambered surface is crooked in fixed head 21, and metal forming 213 shapes are identical with the shape of cambered surface; On the line that the cambered surface that is positioned at antenna 12 converges; For example this cambered surface can also be the face of cylinder, and at this moment, antenna 12 is positioned on the axis on this face of cylinder; Simultaneously, metal forming 213 can also weaken the interference that 1 pair of antenna of main frame 12 receives signal.
With reference to Fig. 3 and Fig. 4; Shown in Figure 3 is the casing 16 of main frame and the fixed head 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 screwed hole 1631 on each column 163, casing 16 has also comprised the screw 164 that matches with screwed hole 1631 simultaneously; The draw-in groove 161 of fixed head 21 corresponding casing 16 sidewalls is provided with trip 211; Be provided with the open-work (not shown) that the column that can supply casing 16 passes in the bottom of fixed head 21; The outside at open-work; Bottom surface by fixed head 21 vertically extends riser 214, and this riser 214 has and the coaxial through hole 2141 of column 163 screwed holes 1631.
Fig. 4 is the installation diagram of casing 16 and fixed head 21; Corresponding draw-in groove 161 snappings on the trip 211 of fixed head 21 and the casing 16; Casing 16 is combined closely with draw-in groove 161 with the corresponding trip 211 of fixed head 21 upsides, and casing 16 combines with draw-in groove 161 gaps with fixed head 21 downsides and the corresponding trip 211 of sidepiece; At this moment; Casing 16 columns 163 pass the open-work of fixed head 21 bottoms and the riser 214 of fixed head 21 is fitted; Screwed hole 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 screwed hole 1631 on the column 163, and the shell fragment 215 that the fixed head 21 shown in Fig. 2 upwarps is butted on the bottom surface of casing 16, plays the effect of damping.
Trip that casing is corresponding with main dependence casing of installing of fixed head and fixed head upside and draw-in groove combine closely and screw passes the realization that is spirally connected of through hole and the screwed hole on the column on the riser; Main frame is installed on the stuck-module through installing of casing and fixed head; When dismounting, remove casing and can main frame be separated with stuck-module with fixed head.When being applied to headrest coating main frame and stuck-module; The hole of bottom through headrest screws out screw; Because it is to combine closely that the snapping of casing and fixed head has only the trip of upside and draw-in groove, can easily main frame be taken out from the rear portion of resting the head on, to the main frame place under repair or install some elements additional.Needed screwed hole to be set for the ease of dismounting in the past, and can destroy whole outward appearance at main frame face frame table face; For take into account attractive in appearance be convenient to dismantle adopt snap fit normally trip combine with the gap of draw-in groove, make the main frame installation built on the sand; For the snap fit of taking into account attractive in appearance and firm employing is easy to form fast knot, make main frame be difficult to dismounting.
Fig. 5 shows the CMMB device after the assembling; In this Fig. 5, the display screen 41 of display module exposes from 3 the rear portion of resting the head on, and loudspeaker 42 are located at the top of face frame 14; Human inductor 142 is located at the bottom of face frame 14; The connecting rod 23 of stuck-module stretches out from 3 the bottom of resting the head on, and this connecting rod 23 is provided with cavity, and power line 13 passes from this cavity.Human inductor 142 as induction display screen towards on do not have the passenger, can make the action of shutdown according to this, on face frame 14, also be provided with switch and regulate button, this CMMB device also can dispose remote controller.
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 split ring resonator structure, complementary helix structure, opening helical ring structure, two opening helical ring structure, the complementary folding line structure or through several kinds of 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 geometry is derived; Another kind is that expansion is derived, and the geometry is here derived and is meant 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 has only one group of feeder line and feedback point and corresponding micro groove structure, two groups or more feeder line also can be arranged and present point and corresponding micro groove structure, and each is organized and can be symmetrical set, and also can comply with the actual media substrate surface that requires be arranged in.
Medium substrate can be processed by ceramic material, macromolecular material, ferroelectric material, ferrite material or ferromagnetic material.Preferably, being processed by macromolecular material, can be macromolecular materials such as FR-4, F4B particularly.Sheet metal is copper sheet or silver strip.Be preferably copper sheet, cheap, conduct electricity very well.Feeder line is selected for use with the same material of sheet metal and is processed.Be preferably copper.
The processing and manufacturing of magnetoelectric composites antenna in the utility model as long as satisfy the design principle of the utility model, can be adopted various manufactures.Prevailing method is to use the manufacturing approach of all kinds of printed circuit board (PCB)s (PCB), certainly, metallized through hole, the PCB of double-sided copper-clad makes the processing request that also can satisfy the utility model.Remove this processing mode; Can also introduce other manufacturing process according to the needs of reality; (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 processing mode and iron plate and the PCB of flexible PCB processing, iron plate antenna of employed conductive silver paste printing ink processing mode, all kinds of deformation devices.Wherein, iron plate and PCB combination processing mode is meant that the accurate processing that utilizes PCB accomplishes the processing of antenna micro groove structure, accomplishes other slave part with iron plate.In addition, can also process through etching, plating, brill quarter, photoetching, electronics is carved or ion is carved method.
The utility model CMMB device can be used on the vehicles widely; Include but not limited on automobile, train, aircraft; Can be widely used in the seat of automobile, train, aircraft as the CMMB device that is used for backrest top of specific embodiment; Simultaneously; Also can adopt the mode of suspension to be installed in the mode at passenger vehicle, train or aircraft top to the CMMB device in passenger vehicle, train and the aircraft, only need the casing of main frame among the embodiment and stuck-module done to change just can realize.
The utility model is intended to set forth a kind of signal and strengthens structure; This structure can be under the prerequisite that does not change transmitter transmit signal strength and base station density, improves the signal reception of device, has the CMMB device on the vehicles that signal strengthens structure; Can better receive signal; Improve audio visual effect, preferably receive display module and signal and the design of processing module one, also specify in an embodiment.
Below only be description, can not constitute the restriction of the utility model, all be within the protection range of the utility model in the development of the situation that does not break away from the utility model aim to the embodiment of the utility model.
Claims (10)
1. a signal strengthens structure, and said structure is located in the device that has antenna, it is characterized in that, said enhancing structure comprises that one has the metal forming of the crooked curved surface of said dorsad antenna.
2. signal according to claim 1 strengthens structure, it is characterized in that said metal forming is fixed in the surface of said device case.
3. signal according to claim 1 strengthens structure, it is characterized in that said metal forming is fixed in the surface of pcb board in the said device.
4. signal according to claim 3 strengthens structure, it is characterized in that said metal forming is the metal forming that is printed on the pcb board.
5. strengthen structure according to each described signal of claim 1-4, it is characterized in that said curved surface is cambered surface, the face of cylinder or parabola.
6. a CMMB device is installed on the vehicles, it is characterized in that, said CMMB device comprises:
Signal receives and processing module, comprising: antenna, motherboard and power line, said signal receive with processing module and pass through said antenna receiving signal, and the conversion of signals that said antenna is received is video and audio signal and output, and said power line connects power supply;
Display module receives said signal and receives the said video and audio signal and the broadcast of exporting with processing module;
Stuck-module comprises fixed head, and sidewall is extended in said fixed head bottom, and the lateral surface of said sidewall is a cambered surface crooked in said fixed head, and said sidewall is fixed and the identical metal forming of said sidewall arc shape; Said antenna is positioned at the outside of the said sidewall of said fixed head, and is relative with said sidewall cambered surface; Said stuck-module receives said signal with processing module and is fixed on the said vehicles.
7. CMMB device according to claim 6 is characterized in that, said motherboard bottom also is equipped with radome.
8. CMMB device according to claim 6; It is characterized in that; Said signal receives with processing module and also comprises face frame, casing; Said motherboard is packed between said casing and said the frame through said casing and being fixedly connected of said frame, and said antenna is positioned at the outer side of said casing.
9. CMMB device according to claim 8; It is characterized in that; Said signal receives with processing module and also comprises platen bracket, and said motherboard is packed between said casing and the said platen bracket through said casing and being fixedly connected of said platen bracket; Said display module is positioned at the top of said platen bracket, and said display module exposes from said frame, and said display module is packed between said frame and the said platen bracket through said frame and being fixedly connected of said platen bracket.
10. CMMB device according to claim 7; It is characterized in that; Also comprise: headrest; Said headrest has rear portion, bottom and cavity, and said signal reception and processing module, said display module and said stuck-module are positioned at the said cavity of said headrest, and said display module exposes from the said rear portion of said headrest.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120323012XU CN202395159U (en) | 2011-08-31 | 2011-08-31 | Signal enhancing structure and mobile multimedia broadcast device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120323012XU CN202395159U (en) | 2011-08-31 | 2011-08-31 | Signal enhancing structure and mobile multimedia broadcast device |
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| Publication Number | Publication Date |
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| CN202395159U true CN202395159U (en) | 2012-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201120323012XU Expired - Lifetime CN202395159U (en) | 2011-08-31 | 2011-08-31 | Signal enhancing structure and mobile multimedia broadcast device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102956987A (en) * | 2011-08-31 | 2013-03-06 | 深圳光启高等理工研究院 | Signal enhancing structure and mobile multimedia broadcasting device |
| CN103178334A (en) * | 2013-03-05 | 2013-06-26 | 苏州佳世达电通有限公司 | Electronic device capable of enhancing antenna signal strength and operation method of electronic device |
| CN104704676A (en) * | 2012-10-10 | 2015-06-10 | 迪睿合电子材料有限公司 | Composite coil module and portable apparatus |
| CN108259648A (en) * | 2018-01-12 | 2018-07-06 | 深圳天珑无线科技有限公司 | A kind of mobile equipment |
-
2011
- 2011-08-31 CN CN201120323012XU patent/CN202395159U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102956987A (en) * | 2011-08-31 | 2013-03-06 | 深圳光启高等理工研究院 | Signal enhancing structure and mobile multimedia broadcasting device |
| CN104704676A (en) * | 2012-10-10 | 2015-06-10 | 迪睿合电子材料有限公司 | Composite coil module and portable apparatus |
| CN103178334A (en) * | 2013-03-05 | 2013-06-26 | 苏州佳世达电通有限公司 | Electronic device capable of enhancing antenna signal strength and operation method of electronic device |
| CN103178334B (en) * | 2013-03-05 | 2015-12-09 | 苏州佳世达电通有限公司 | Electronic installation and the method for operation thereof of antenna signal strength can be strengthened |
| CN108259648A (en) * | 2018-01-12 | 2018-07-06 | 深圳天珑无线科技有限公司 | A kind of mobile equipment |
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