High-integration-level unmanned three-proofing receiver

Abstract

The utility model discloses a high-integration unmanned three-proofing receiver, and particularly relates to a vehicle-mounted receiver structure design which is compact in structure, low in cost and high in reliability, the receiver specifically comprises a face shell module, a bottom shell module and a main board module, the receiver is small and compact in structure, reasonable in space original part layout, fully utilized in space, light in weight and high in reliability, and the reliability of the receiver is improved. The anti-impact performance is high, and the dustproof and waterproof performance is good.

Description

TECHNICAL FIELD

[0001] The utility model relates to unmanned vehicle -mounted electronic equipment technical field especially relates to a compact structure, low -cost, high reliability vehicle -mounted receiver structure design. BACKGROUND

[0002] With the rapid development of unmanned technology, the application of automatic driving vehicles, unmanned aerial vehicles, robots and other intelligent devices in industrial, agricultural, military and civilian fields is increasingly widespread. The core control system of these devices highly depends on high-precision, high-reliability satellite navigation receiver devices to achieve accurate positioning, environmental perception and remote command interaction. However, the existing receivers still have significant defects in actual application, especially in complex and harsh environments, which are manifested as follows:

[0003] The shell of the traditional receiver has poor sealing, low interface protection level, and is prone to water seepage, dust accumulation and other problems in humid, dusty, vibrating or extreme temperature environments, resulting in signal attenuation, communication interruption and even device damage. To improve the protection performance, some receivers use a fully enclosed structure, but the insufficient heat dissipation design easily causes high temperature heat accumulation, affecting the service life of the components. When unmanned devices operate in the wild or rugged terrain, the receiver is often damaged due to continuous vibration or accidental collision, causing internal component solder joints to break, displace and other problems, which seriously affect signal stability. In addition, some receivers are too large and heavy, which are inconvenient to carry and difficult to install.

[0004] In view of the above problems, the industry urgently needs a receiver with high protection level, strong environmental adaptability and compact structure to meet the reliable operation requirements of unmanned devices in complex working conditions. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a high-integration unmanned three-proof receiver to solve the problems in the background art.

[0006] To solve the above technical problems, the utility model provides the following technical scheme:

[0007] A high-integration unmanned three-proof receiver, comprising a face shell module, a bottom shell module and a mainboard module;

[0008] The face shell module comprises a face shell, a sealing ring groove is arranged around the inside of the face shell, and a sealing ring is installed in the sealing ring groove;

[0009] The bottom shell module comprises a bottom shell and a connector plug-in arranged on the side wall of the bottom shell;

[0010] The mainboard module comprises a core board, a positioning board, a SIM card board and an interface board, the core board is directly inserted into communication with the positioning board through a socket, the positioning board is connected with the interface board, and the SIM card board is connected with the core board.

[0011] The joint plug-in is connected with the mainboard module.

[0012] The face shell and the bottom shell are fixed to each other.

[0013] The joint plug-in comprises any one or more of a SIM card plug, a USB plug, an SMA joint, a TNC joint and an indicator light and a connector joint.

[0014] The indicator light and the connector joint are fixed to the positioning board.

[0015] Preferably, the outside of the face shell is centrally provided with a sticker slot, and the sticker slot is provided with a plurality of sticker marks.

[0016] Preferably, the inside of the face shell is provided with positioning counterbores adjacent to two corners, the two groups of positioning counterbores are arranged in an asymmetric manner, and the bottom shell is provided with limiting columns matched with the positioning counterbores.

[0017] Preferably, the inside of the bottom shell is provided with a heat dissipation boss, the periphery of the heat dissipation boss is distributed with weight reduction grooves, the outside of the bottom shell is provided with heat dissipation fins, and the heat dissipation fins are air permeable channels.

[0018] Preferably, the shielding cover is provided above the components of the positioning board, and the shielding cover is a square structure.

[0019] Preferably, the material of the heat dissipation fins is aluminum alloy, the substrate thickness is 4-8 mm, the height is 10-25 mm, the thickness is 1.5-3 mm, and the interval is 6-12 mm.

[0020] Preferably, the side waist of the face shell is concave, the side waist of the bottom shell is concave, the side waist of the bottom shell comprises a concave side wall and a concave bottom wall, and the concave side wall is provided with the SIM card plug and / or the USB plug.

[0021] The inside of the SIM card plug is connected with the SIM card board, the inside of the USB plug is provided with a USB accessory, and the USB accessory is connected with the core board.

[0022] The concave bottom wall is provided with a mounting hole for connecting with an unmanned device.

[0023] Preferably, the front side wall of the bottom shell is fixed with the SMA joint and / or the TNC joint and / or the indicator light and the connector joint.

[0024] Preferably, the front side wall is provided with a glue storage groove through the inner wall area of the indicator light.

[0025] Preferably, the lower side of the sim card plug is provided with a lower groove, and the right side of the usb plug is provided with a side groove.

[0026] Compared with the prior art, the receiver has the advantages that: the receiver is small and compact, the space elements are arranged reasonably, the space is fully utilized, the weight is reduced, the impact resistance is strong, and the dustproof and waterproof performance is good. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, illustrate the present application and explain the principles of the present application, and do not constitute a limitation of the present application. In the drawings:

[0028] Fig. 1 is a perspective view of the whole machine of the present application;

[0029] Fig. 2 is an explosion view of the whole machine of the present application;

[0030] Fig. 3 is a three-view of the face shell of the present application;

[0031] Fig. 4 is a three-view of the bottom shell of the present application;

[0032] Fig. 5 is a perspective view of the bottom shell module of the present application;

[0033] Fig. 6 is a perspective view of the mainboard module of the present application;

[0034] In the drawings: the whole machine 10, the face shell module 100, the face shell 110, the face shell bevel 111, the sticker mark 112, the sticker groove 113, the face shell side waist 114, the face shell bevel 115, the face shell screw hole 116, the sealing ring groove hole 117, the positioning counterbore 118, the face shell large sticker 120, the face shell small sticker 130, the sealing ring 140, the bottom shell module 200, the bottom shell 210, the limiting column 211, the glue storage groove 212, the heat dissipation boss 213, the weight reduction groove 214, the mounting column 215, the side groove 216, the air hole 217, the heat dissipation fin 218, the mounting hole 219, the sim card plug 220, the usb plug 230, the usb accessory 240, the fastener 250, the sma connector 260, the bottom shell sticker 270, the TNC connector 280, the mainboard module 300, the shielding cover 310, the sim card plate 320, the positioning plate 330, the core plate 340, the heat conduction sheet 341, the interface plate 350, the indicator light 360, the connector connector 370, the radio frequency wire 380. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] For examples, please refer to Figs. 1-6 ,

[0037] The main components of the device in this embodiment are: front shell module, bottom shell module and motherboard module.

[0038] The front panel module mainly consists of the front panel, sticker, and sealing ring. The front panel is die-cast, the sticker contains relevant information about the front panel, and the sealing ring is usually made of silicone and hydraulically molded.

[0039] The bottom shell module mainly includes the bottom shell, connectors, and fasteners. The bottom shell is die-cast, and the connectors are installed on the bottom shell using screws, nuts, or other fasteners, or by applying adhesive. Sealing is achieved using sealing rings or glue.

[0040] The motherboard module includes a positioning board, a core board, a SIM card board, and an interface board, which are connected for communication via ribbon cables and fixed inside the bottom shell with fastening accessories.

[0041] The specific structure of the faceplate module is as follows:

[0042] The beveled corners of the front cover are rounded and chamfered, and the concave side and beveled structure of the front cover enhance hand comfort. The sticker label is for attaching small stickers to the front cover, and the sticker slot is for attaching large stickers. The large sticker has a viewing window to reveal the small stickers and a transparent window to identify changes in the small stickers. If the information on the large sticker remains unchanged, it can be mass-produced quickly, reducing costs. The threaded holes on the front cover correspond to the mounting holes on the bottom cover, and the front cover and bottom cover are locked together by fasteners such as screws.

[0043] The sealing ring slot is used to install the sealing ring, thereby sealing the front shell and the bottom shell;

[0044] The positioning hole and the limiting column of the bottom shell are matched to facilitate positioning when the face shell and the bottom shell are installed, the inside of the face shell is provided with two adjacent positioning holes, the two groups of positioning holes are arranged asymmetrically, the bottom shell is provided with a limiting column matched with the positioning hole, the present application has only two positioning holes at the corners, if all four corners have positioning holes, the upper cover can be buckled with the bottom shell after being rotated by 180 degrees, and only one installation mode is available for the two holes, so that the "anti-fumble and anti-mistake design" is realized, that is, the limiting column and the positioning hole are arranged asymmetrically to prevent incorrect assembly.

[0045] The specific structure of the bottom shell module is as follows:

[0046] The inside of the bottom of the bottom shell is provided with a heat dissipation boss, the periphery of the heat dissipation boss is provided with a weight reduction groove, the outside of the bottom of the bottom shell is provided with a heat dissipation fin, the heat dissipation fins are connected by a ventilation channel, and the inside of the bottom of the bottom shell is further provided with a mounting column for mounting a positioning plate and a fixing plate.

[0047] The bottom shell bevels around the bottom shell are also chamfered and rounded to transition, and the side waist of the bottom shell is concave, which extends to the bottom of the bottom shell.

[0048] The concave side wall of one side of the side waist of the bottom shell is provided with a sim card plug and a USB plug, the inner side of the sim card plug is connected with a sim card plate, the sim card plate is connected with a core board, the inner side of the USB plug is connected with a USB accessory, and the USB accessory is connected with the core board; the lower part of the sim card plug is provided with a lower groove to facilitate the removal of the sim card plug and the inserted sim card; in this way, the concave design of the side waist of the bottom shell is fully utilized, the side wall is used to set the sim card plug and the USB plug, and the compatibility of the device is improved, the bottom wall is provided with a mounting hole for penetrating a fastener to connect with the unmanned driving equipment, which facilitates the installation of the device, and the side waist of the bottom shell, the side waist of the face shell and the face shell bevel structure together form a structure for holding the whole machine with hands, improving the hand holding comfort.

[0049] The sma joint, the TNC joint, the indicator light and the connector joint are fixed on the front side wall of the bottom shell, the sma joint is directly connected with the core board, the indicator light and the connector joint are installed on the interface board, the interface board is connected with the positioning plate, the TNC joint is connected with the core board through a radio frequency line, the interface board is connected with the positioning plate, the sim card plate and the core board by using FPC flexible flat cable, the tail of the sma joint has an ipex head which is directly buckled on the ipex female seat on the core board.

[0050] The interface plate, the core plate and the positioning plate are reserved with a certain space, so that the assembly composed of the interface plate, the indicator light and the connector joint can be conveniently installed and disassembled. When disassembling the assembly, the assembly is first retreated into the reserved space and then taken out from inside. The assembly includes the sma joint and the TNC joint. Due to the reserved space, the assembly can be conveniently disassembled, which is beneficial to the later maintenance and repair.

[0051] In order to facilitate opening of the USB plug, a side slot is arranged on one side of the USB plug, so as to facilitate buckling of the USB plug.

[0052] The SIM card is not frequently inserted and taken out, so the SIM card plug is fixed by a screw. The screw presses the SIM card plug. The SIM card plug can realize IP67 level protection through extrusion of a sealing ring or pressing of a silica gel pad.

[0053] The USB plug is usually used frequently, so the USB plug is designed in a flip cover form. Long-term flip cover is easy to wear, so the USB accessories inside the USB plug are filled with silica gel to realize IP67 level protection. The bottom shell is designed with a related groove structure at the USB accessory position to store glue.

[0054] The indicator light is provided with a glue storage groove on the inner side of the corresponding sidewall of the bottom shell, so as to facilitate sealing treatment of the indicator light and the sidewall by glue through the glue storage groove.

[0055] The blank part of the bottom shell where the sma joint, the TNC joint, the indicator light and the connector joint are arranged is provided with a bottom shell sticker, so as to facilitate text marking of different joints.

[0056] The specific structure of the mainboard module is as follows:

[0057] The heat conduction sheet is arranged between the core plate and the heat dissipation boss, so as to facilitate heat transfer of the core plate to the heat dissipation boss.

[0058] The positioning plate is arranged on the upper part of the core plate. The core plate and the positioning plate are locked and fixed by cooperating with the mounting column through fasteners such as screws. The core plate and the positioning plate are directly inserted and communicated through the socket and connected by a wireless cable, so as to reduce the cable failure rate, improve the reliability and shorten the assembly time.

[0059] The shielding cover is arranged on the upper part of the components of the positioning plate. The shielding cover covers the components from above, so as to prevent external signal interference and better perform positioning communication. The shielding cover is square. All materials for manufacturing the shielding cover are cut in a regular shape, so that the raw materials are saved. For example, if the shielding cover is circular, cutting will cause waste of raw materials.

[0060] 1. Structure optimization and low-cost design

[0061] The receiver body adopts a square structure, and the material matching rate of internal components (PCB, sheet metal, stickers, etc.) is more than 95%, reducing the edge waste. The square design can improve the utilization of internal space, and the mainboards are stacked to save space. The pcb is guaranteed sufficient area layout components, and the shell is designed as small and compact as possible based on accommodating internal accessories. It can be selected to be installed in front or more positions on the unmanned vehicle body.

[0062] The non-stress area of the shell is hollowed out in a large area, and the thickness of about 2mm aluminum alloy is designed, combined with local reinforcing ribs, to reduce weight and cost, while ensuring impact resistance and reducing the defect rate of die casting.

[0063] 2. Human-machine engineering and protection design

[0064] Avoid the influence of rectangular edges on the feel, and the too square affects the appearance. The four corners of the shell are designed with chamfer and round corner transition. The left and right waist are designed with concave, which improves the comfort of holding and hides the left and right mounting holes of the receiver. The outer surface is treated with plastic spraying, which takes into account the beauty, corrosion resistance and scratch resistance.

[0065] The upper cover and the bottom shell joint surface are provided with a sealing rubber ring, and the indicator light and usb interface are sealed by silicone pouring or dispensing process to ensure IP67 level dust and water proof performance.

[0066] 3. High-efficiency heat dissipation system

[0067] The bottom shell is made of die-cast aluminum alloy material with good signal shielding effect, low cost and high heat dissipation coefficient. The fin heat dissipation structure is designed at the center of the bottom shell bottom. The fin height and spacing parameters are obtained through finite element analysis, and the upper and lower through air ducts are used to actively dissipate heat by using the airflow in the vehicle running, which greatly improves the heat dissipation efficiency. In addition, high heat generating elements (such as power modules) and sensitive circuits are distributed in different areas to avoid thermal coupling interference.

[0068] The design of the heat dissipation fin needs to consider the thermodynamic performance, aerodynamic efficiency, material cost and manufacturing process. The following is the key parameter optimization suggestion of aluminum alloy heat dissipation fin, which is suitable for natural convection scene:

[0069] The values here are the optimal value range of finite element analysis or related document records, and the values in the brackets are the values used in the receiver model design of this example. Among them, the fin thickness is a range because it involves draft angle, which is a structure with thin top and thick bottom, so it is a range. The rest of the parameters such as height, spacing and substrate thickness are an accurate value.

[0070] The fin height is 10-25mm (model 17mm). The height is too low, and the heat dissipation area is insufficient. Too high is easy to cause the natural convection efficiency to decrease.

[0071] Fin thickness 1.5-3mm (model 1.5-3.4mm) Too thin, the heat transfer capacity is insufficient, too thick, increase the weight and marginal heat dissipation benefit decreased, fin for die casting mold to make it easy to demould, otherwise the mold will stick. So the top thickness is 1.5mm, the bottom thickness is 3.4mm.

[0072] Fin spacing 8-12mm (model is 6mm) Too small, hinder the airflow, too large, the heat dissipation area utilization rate is low. Model design slightly small, is because want to increase the number of fins, the device on the mainboard is generally multiple local area heating, increase the number of local fins to improve the heat dissipation efficiency. (Such as spacing is too large, there may be a region without fins, the heat dissipation effect of this area is poor)

[0073] Substrate thickness 4-8mm (model max 7.7mm) Ensure that the heat is quickly conducted from the heat source to the fin, avoid heat bottleneck, the substrate thickness refers to the bottom of the bottom shell, that is, the thickness of the bottom shell surface at the bottom of the fin.

[0074] The above values are the optimal value range of finite element analysis or related document records, the values in the brackets are the values used in the model design of the receiver in this example. Among them, the fin thickness involves the draft angle, which is a top-thin bottom-thick structure, so it is a range, the rest of the parameters such as height, spacing, and substrate thickness are an accurate value.

[0075] 4, fast assembly and error-proof design

[0076] The accessories are installed on the bottom shell as much as possible, and the last step of assembly only needs to cover the upper cover and tighten the screws. The upper cover and the bottom shell are fixed only by screws, and the core board and the positioning plate are directly inserted into communication through the socket, and the wireless cable is connected, which improves the reliability and shortens the assembly time.

[0077] Foolproof and error-proof: rectangular slot labels are added by stickers, the upper and lower shells and each mainboard are designed with limiting columns, and TNC connector accessories are designed with rotation-stopping mounting holes, for example: upper and lower shell buckling, mainboard installation is only allowed in one installation direction, and the sticker will not shift.

[0078] The standard parts used in this application file can be purchased from the market, and can be ordered according to the description and drawings, and the specific connection mode of each part adopts the conventional means such as bolts, rivets, and welding in the prior art, and the machinery, parts and equipment adopt conventional models in the prior art.

[0079] Finally, it should be noted that: the above is only the preferred embodiment of the utility model, and is not used to limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or make equivalent replacement to part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A high integration unmanned triplexer receiver, characterized in that, Face shell module, bottom shell module and mainboard module are included. The face shell module includes a face shell, a sealing ring groove is arranged around the inside of the face shell, and a sealing ring is arranged in the sealing ring groove. The bottom shell module includes a bottom shell and a joint plug arranged on the side wall of the bottom shell. The mainboard module includes a core board, a positioning board, a SIM card board and an interface board, the core board is directly inserted into communication with the positioning board, the positioning board is connected with the interface board, and the SIM card board is connected with the core board. The joint plug is connected with the mainboard module. The face shell and the bottom shell are fixed with each other. The joint plug includes a SIM card plug, a USB plug, an SMA joint, a TNC joint and any one or more of indicator lights and connector joints. The indicator lights and the connector joints are fixed on the positioning board.

2. A high integration unmanned triplexer receiver according to claim 1, characterized in that, A sticker groove is arranged in the middle of the outside of the face shell, and a plurality of sticker marks are arranged in the sticker groove.

3. The high integration unmanned tri-radio receiver according to claim 1, wherein Two adjacent corners of the inside of the face shell are provided with positioning counterbores, and two groups of the positioning counterbores are arranged in an asymmetric manner, and the bottom shell is provided with limiting columns matched with the positioning counterbores.

4. The high integration unmanned tri-radio receiver according to claim 1, wherein A heat dissipation boss is arranged in the inside of the bottom shell, a plurality of weight reduction grooves are arranged around the heat dissipation boss, a heat dissipation fin is arranged on the outside of the bottom shell, and air passages are arranged between the heat dissipation fins.

5. The high integration unmanned tri-radio receiver according to claim 1, wherein A shielding cover is arranged above the components of the positioning board, and the shielding cover is in a square structure.

6. A high integration unmanned triplexer receiver according to claim 4, wherein The material of the heat dissipation fin is aluminum alloy, the thickness of the substrate is 4-8 mm, the height is 10-25 mm, the thickness is 1.5-3 mm, and the interval is 6-12 mm.

7. The high integration unmanned tri-radio receiver according to claim 1, wherein The side waist of the face shell is concave, the side waist of the bottom shell is concave, the side waist of the bottom shell includes a concave side wall and a concave bottom wall, and the concave side wall is provided with the SIM card plug and / or the USB plug. The inside of the SIM card plug is connected with the SIM card board, and the inside of the USB plug is provided with a USB accessory connected with the core board. The concave bottom wall is provided with a mounting hole for connecting with an unmanned device.

8. The high integration unmanned tri-radio receiver according to claim 1, wherein The front side wall of the bottom shell is fixed with the SMA joint, the TNC joint and / or the indicator lights and the connector joints.

9. A high integration unmanned triplexer receiver as claimed in claim 8, wherein, The front side wall is provided with a glue storage groove penetrating the inner wall area of the indicator light.

10. The high integration unmanned tri-radio receiver according to claim 1, wherein The lower side of the SIM card plug is provided with a lower groove, and the right side of the USB plug is provided with a side groove.

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