CN112666512A - Direction finding device - Google Patents
Direction finding deviceDownload PDFInfo
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- CN112666512A CN112666512ACN201910927721.XACN201910927721ACN112666512ACN 112666512 ACN112666512 ACN 112666512ACN 201910927721 ACN201910927721 ACN 201910927721ACN 112666512 ACN112666512 ACN 112666512A
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- shielding
- circuit board
- finding device
- assembly
- finding
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Abstract
Description
Technical Field
The invention relates to the technical field of communication, in particular to a direction-finding device.
Background
The direction-finding device is an important part in equipment such as a mobile phone. The work of the direction-finding device needs to rely on the communication of signals, and the existing direction-finding device generally communicates through 2G-4G signals. With the rapid development of wireless communication technology, fifth generation (5G) wireless communication systems will be widely used, and radio base stations and user terminals will be updated at the time. The existing direction-finding device cannot meet the 2G-5G full-band communication.
Disclosure of Invention
The invention provides a direction-finding device, aiming at solving the problem that the existing direction-finding device cannot meet the full-band communication of 2G-5G.
The invention is realized by the following steps:
a direction-finding device comprising: the shell and set up in inside 5G direction finding subassembly and the circuit board subassembly of shell, 5G direction finding subassembly with the circuit board subassembly electricity is connected, 5G direction finding subassembly is used for sending and receiving the signal, the circuit board subassembly is used for carrying out signal processing.
Further, in a preferred embodiment of the present invention, the 5G direction-finding component includes a 5G antenna and a 5G rf module connected to each other, and the 5G rf module is connected to the circuit board component.
Further, in a preferred embodiment of the present invention, the 5G antenna, the 5G rf module and the circuit board assembly are sequentially stacked.
Further, in a preferred embodiment of the present invention, the circuit board assembly includes a digital board and a data transmission module, and both the data transmission module and the 5G rf module are connected to the digital board.
Further, in a preferred embodiment of the present invention, the circuit board assembly further includes a shielding mechanism, and the digital board is disposed inside the shielding mechanism.
Further, in a preferred embodiment of the present invention, the shielding mechanism includes a first shielding cover and a shielding box, the digital board is disposed inside the shielding box, and the first shielding cover is disposed above the shielding box.
Further, in a preferred embodiment of the present invention, the circuit board assembly further includes an expansion board, and the expansion board is disposed inside the shielding box and stacked on a side of the digital board close to the first shielding cover.
Further, in a preferred embodiment of the present invention, the shielding mechanism further includes a second shielding cover disposed between the first shielding cover and the digital board.
Further, in a preferred embodiment of the present invention, the shielding box includes a bottom plate and a side plate, the side plate is disposed around an edge of the bottom plate, and a weight-reducing hole is disposed on the side plate.
Further, in a preferred embodiment of the present invention, a heat sink is disposed on a side of the bottom plate away from the digital board, an avoiding hole corresponding to the heat sink is disposed on the bottom plate, a protruding portion matching with the avoiding hole is disposed on a side of the heat sink facing the bottom plate, and a heat conducting layer is disposed at an end of the protruding portion.
The invention has the beneficial effects that: the direction-finding device obtained through the design is internally provided with the 5G direction-finding component, so that the direction-finding device provided by the invention can meet the full-band communication of 2G-5G, and can better adapt to the requirements of users.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a direction-finding device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a shielding box in a direction-finding device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a shielding box and a heat sink in a direction-finding device according to an embodiment of the present invention;
fig. 4 is a schematic partial structural diagram of a shielding box and a heat sink in a direction-finding device according to an embodiment of the present invention.
Icon: anupper cover 1; abox body 2; afan 21; afixed frame 211;5G antenna 3; 5Gradio frequency module 4; adigital board 5; adata transmission module 6; afirst shield cover 7; asecond shield cover 8; ashield case 9; abottom plate 91; arelief hole 911; anavoidance slot 912;side plates 92; alightening hole 921; aheat sink 93; and aprotrusion 931.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Therefore, the direction-finding device provided by the embodiment of the invention is internally provided with the 5G direction-finding component, so that the direction-finding device provided by the invention can meet the full-band communication of 2G-5G, and can better adapt to the requirements of users.
Further, referring to fig. 1, when the 5G direction-finding component and the circuit board component operate, a large amount of heat may be generated, which may cause the temperature inside the housing to rise, and when the temperature inside the housing is too high, the normal operation of the 5G direction-finding component and the circuit board component may be directly affected. In order to avoid the over-high temperature inside the casing, in this embodiment, a ventilation opening is provided on thebox body 2, and the ventilation opening is provided with afan 21. When the 5G direction-finding component and the circuit board component work, thefan 21 works along with the 5G direction-finding component and the circuit board component, heat inside the shell can be conducted to the outside in time, and the phenomenon that the temperature inside the shell is too high is avoided. Further, in order to enable thefan 21 to stably operate, thefan 21 is connected to the inner wall of thecase 2 through thefixing frame 211. The relative fixed connection can be realized through bolts and the like.
Further, referring to fig. 1, in the present embodiment, the 5G direction-finding component includes a5G antenna 3 and a5G rf module 4 connected to each other, and the5G rf module 4 is connected to the circuit board component. The5G antenna 3 and the 5Gradio frequency module 4 work cooperatively to complete the transmission and reception of 2G-5G signals. Simultaneously,5G antenna 3, 5Gradio frequency module 4 and circuit board components stack gradually the setting for5G antenna 3 is located the superiors, and through the mode that stacks up the setting, the increase is to the utilization ratio in space, reduces occupation space, in order to reduce the whole volume of direction-finding device. The5G antenna 3 may be a conventional direction-finding antenna such as a matrix direction-finding antenna. Meanwhile, in order to ensure stable operation of the5G antenna 3, a corresponding filter circuit, such as an RF filter circuit, may be provided for the5G antenna 3.
Further, referring to fig. 1, in the present embodiment, the circuit board assembly includes adigital board 5 and adigital transmission module 6, and both thedigital transmission module 6 and the5G rf module 4 are connected to thedigital board 5. Thedigital board 5 is the control core and the processing core of the whole direction finding system. As a control core, thedigital board 5 can generate a control signal to control and connect each module of the direction-finding system of the device (such as a mobile phone) where the digital board is located, wherein the functions include but are not limited to power-on control, environment monitoring, reporting to the PDA, channel switching, initialization configuration of each chip, and the like, and system maintenance and operation control of the device direction-finding are completed. As a processing core, the PDA can receive intermediate frequency data, perform DDC processing, IQ demodulation processing, direction finding algorithm processing, and the like, and transmit the processed data to the PDA. Thedata transmission module 6 is mainly used for data transmission, and in this embodiment, thedata transmission module 6 may adopt a 433 module. In practical implementation, because the volume of thedigital board 5 is relatively large, thedata transmission module 6 and the 5Gradio frequency module 4 can be arranged above thedigital board 5 side by side, and space utilization is reasonably carried out so as to reduce the whole volume of the direction-finding device.
Further, referring to fig. 1 to fig. 3, in the present embodiment, the circuit board assembly further includes a shielding mechanism, and thedigital board 5 is disposed inside the shielding mechanism. Since thedigital board 5 generates strong electromagnetic interference during operation, it will affect the normal operation of other surrounding electronic components. This embodiment is through setting up shielding mechanism, shields the electromagnetic interference thatdigital board 5 produced, avoids causing the influence to the work of other electronic parts on every side, improves direction-finding device's operating stability.
Further, referring to fig. 1 to 3, in the present embodiment, the shielding mechanism includes afirst shielding cover 7 and ashielding box 9, thedigital board 5 is disposed inside theshielding box 9, and thefirst shielding cover 7 is disposed above theshielding box 9. Thefirst shielding cover 7 and thesecond shielding cover 8 are combined into a relatively sealed structure to well shield electromagnetic interference generated from the internaldigital board 5. In order to ensure the shielding effect, thefirst shielding cover 7 and theshielding box 9 may be made of metal or the like capable of effectively shielding electromagnetic interference. In practical implementation, thedata transmission modules 6 and5G rf modules 4 may be fixed above thefirst shielding cover 7 by bolts or the like, so as to enhance the stability of thedata transmission modules 6 and5G rf modules 4.
Further, referring to fig. 1 to fig. 3, in order to enhance the shielding effect of the shielding mechanism, in the embodiment, the shielding mechanism further includes asecond shielding cover 8, and thesecond shielding cover 8 is disposed between thefirst shielding cover 7 and thesecond shielding cover 8. Thefirst shielding cover 7 and thesecond shielding cover 8 jointly form an upper side shielding cover with larger thickness, so that the whole shielding effect of the shielding mechanism is stronger, and the operation stability of the direction-finding device is improved. Further, since thefirst shielding cover 7 and thesecond shielding cover 8 are not integral, a certain gap may exist between the two covers to avoid the influence of the gap on the shielding effect. In this embodiment, the shielding mechanism further includes a sealing plate, and the sealing plate is disposed on thefirst shielding cover 7. Specifically, the sealing plate is disposed at a joint of thefirst shielding cover 7 and thesecond shielding cover 8. Accordingly, a closing plate may be provided at the junction between thefirst shield cover 7 and theshield case 9. The gap is shielded, and the shielding effect of the shielding mechanism is improved.
In practical applications, the circuit board assembly may also include an expansion board (not shown), the expansion board is connected to thedigital board 5, and the expansion board functions similarly to thedigital board 5 and generates strong electromagnetic interference, so that the expansion board is also disposed inside the shielding mechanism and stacked on thedigital board 5 near thefirst shielding cover 7. Since the extension board itself also has a thickness, thesecond shield cover 8 and the sealing plate need to be removed after the extension board is disposed. Of course, if the thickness of the extension plate is not enough to fill the whole space in theshielding box 9, the thickness of thefirst shielding cover 7 can be increased accordingly to improve the shielding effect of the shielding mechanism as much as possible.
Further, referring to fig. 2-3, in the present embodiment, theshielding box 9 includes abottom plate 91 and aside plate 92, theside plate 92 is disposed around an edge of thebottom plate 91, and theside plate 92 is provided with a lighteninghole 921. Thebottom plate 91 and theside plate 92 can shield the bottom and the side of thedigital board 5, and the shielding effect is improved as much as possible. Meanwhile, in order to reduce the weight of the shielding mechanism, theside plates 92 are provided with lighteningholes 921 so as to reduce the overall weight of the direction-finding device.
Further, referring to fig. 2 to fig. 3, since thedigital board 5 generates a large amount of heat during operation, in order to avoid thedigital board 5 being damaged due to an excessively high temperature inside the shielding mechanism, in this embodiment, aheat sink 93 is disposed on a side of thebottom plate 91 away from thedigital board 5, and an avoidinghole 911 corresponding to theheat sink 93 is disposed on thebottom plate 91, so as to guide the heat inside the shielding mechanism out of the heat dissipation mechanism through the avoidinghole 911 and theheat sink 93. In practical application, since the components generated on thedigital board 5 are mainly chips and the like, the positions of the avoidingholes 911 are adaptively set according to the high-heat-production components on thedigital board 5, and aheat sink 93 is arranged at each avoidinghole 911, so that targeted heat dissipation is realized and the heat dissipation efficiency is improved.
Further, referring to fig. 3-4, in the present embodiment, aprotrusion 931 matched with the avoidinghole 911 is disposed on a side of theheat sink 93 facing thebottom plate 91. When theheat sink 93 is mounted, theprotrusion 931 is inserted into the avoidinghole 911, so that theheat sink 93 can reduce the distance from thedigital board 5 or a high-heat-producing component on thedigital board 5 as much as possible, or even directly contact the high-heat-producing component, thereby improving the heat dissipation efficiency of theheat sink 93. In order to further improve the heat radiation efficiency of theheat sink 93, in the present embodiment, the end of theprotrusion 931 is provided with a heat conductive layer. The heat conducting layer can be made of common materials with good heat conducting performance, such as heat dissipation silicone grease and the like.
Further, as shown in fig. 2 to 4, in practical applications, since the protrudingportion 931 may directly contact with a high heat-generating component on thedigital board 5, in order to avoid a pressing damage between the protrudingportion 931 and the high heat-generating component caused by a welding installation error on thedigital board 5, in the present embodiment, theheat sink 93 is connected to thebottom plate 91 through a spring screw, so that theheat sink 93 can be displaced within a certain range, and the high heat-generating component on thedigital board 5 is prevented from being damaged.
In order to avoid this problem, in the present embodiment, thebottom plate 91 is provided with the avoidinggroove 912 at a corresponding position of the components, and the depth direction of the avoidinggroove 912 is perpendicular to thebottom plate 91 and extends to a side away from thedigital plate 5. When thedigital board 5 is mounted, components such as a crystal oscillator can be correspondingly inserted into the avoidinggroove 912, so that the occupied space of thedigital board 5 is reduced.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
Translated fromChinesePriority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910927721.XACN112666512A (en) | 2019-09-27 | 2019-09-27 | Direction finding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910927721.XACN112666512A (en) | 2019-09-27 | 2019-09-27 | Direction finding device |
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| Publication Number | Publication Date |
|---|---|
| CN112666512Atrue CN112666512A (en) | 2021-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910927721.XAPendingCN112666512A (en) | 2019-09-27 | 2019-09-27 | Direction finding device |
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- 2019
- 2019-09-27CNCN201910927721.XApatent/CN112666512A/enactivePending
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| CN105223539A (en)* | 2015-10-23 | 2016-01-06 | 成都九华圆通科技发展有限公司 | A kind of lift-off interferometer direction finding system |
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