WO2022222659A1 - 一种毫米波倒车雷达 - Google Patents

一种毫米波倒车雷达 Download PDF

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Publication number
WO2022222659A1
WO2022222659A1 PCT/CN2022/081684 CN2022081684W WO2022222659A1 WO 2022222659 A1 WO2022222659 A1 WO 2022222659A1 CN 2022081684 W CN2022081684 W CN 2022081684W WO 2022222659 A1 WO2022222659 A1 WO 2022222659A1
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WIPO (PCT)
Prior art keywords
board
heat dissipation
millimeter
antenna
radar
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PCT/CN2022/081684
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English (en)
French (fr)
Inventor
马彦文
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深圳市道通科技股份有限公司
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Publication of WO2022222659A1 publication Critical patent/WO2022222659A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/48—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds
    • B60R19/483—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds with obstacle sensors of electric or electronic type
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9327—Sensor installation details

Definitions

  • the invention belongs to the technical field of radar, and in particular relates to a millimeter wave reversing radar.
  • the reversing radar is a safety auxiliary device when the car is parked or reversed. It can inform the driver of the surrounding obstacles with sound or more intuitive prompts, eliminating the driver's parking, reversing and starting the vehicle. trouble, and help the driver to clear the blind spot of vision and overcome the defect of blurred vision.
  • the signal of the existing reversing radar usually cannot pass through the car bumper, so that it cannot provide a more stable reminder to the driver when it is installed on the car frame. Installing it on the car bumper can solve the problem of Poor signal leads to the problem that it cannot provide a more accurate prompt.
  • it is necessary to cut holes in the bumper of the car As a high-value consumer product, people usually have high aesthetics for its appearance. According to the requirements, the opening of the car bumper will inevitably affect the aesthetics of the overall appearance of the car.
  • the purpose of the present invention is to provide a millimeter wave reversing radar, which aims to solve the problem that the reversing radar of the prior art cannot simultaneously provide a reversing prompt function with a relatively stable signal and at the same time ensure that the overall appearance of the car is not affected.
  • a millimeter wave parking radar which includes a heat dissipation bracket, an antenna plate disposed on one side of the heat dissipation bracket and capable of transmitting and receiving millimeter wave signals, and a power supply disposed on the other side of the heat dissipation bracket board, the antenna board, the heat dissipation bracket and the power board are stacked in sequence
  • the millimeter wave parking radar also includes a housing with an inner cavity and a radar interface terminal, the radar interface terminal and the antenna board are both connected with the The power board is electrically connected, and the antenna board has a main chip for controlling the millimeter wave signal and performing arithmetic operations, and the antenna board, the heat dissipation bracket and the power board are all accommodated in the housing in the lumen.
  • the housing includes an upper casing having an inner cavity and a base that is butted with the upper casing to form a closed cavity, and the antenna board, the heat dissipation bracket and the power board are all accommodated in inside the closed cavity.
  • a first accommodating cavity for accommodating electronic devices on the antenna board is provided on the side of the heat dissipation bracket opposite to the antenna board, and the heat dissipation bracket is opposite to the power board.
  • One side is provided with a second accommodating cavity for accommodating the electronic devices on the power board.
  • the radar interface terminal includes an interface circuit board, an electrical contact terminal electrically connected to the interface circuit board, and an interface housing, and the interface circuit board is fixed on the interface housing, so that the The electrical contact terminal is electrically connected to the power board.
  • the interface housing is located on the outer side of the upper housing, and the interface housing and the upper housing are integrally formed, and the electrical contact terminals pass through the upper housing and are connected to the upper housing.
  • the power board is electrically connected.
  • the electrical contact terminal is a fish-eye pin, and the end of the fish-eye pin is electrically plugged into the power board, and the power board is provided with a fish-eye pin connected to the power board. the fisheye terminal socket.
  • the electrical contact terminal and the fisheye terminal insertion port are in an interference fit, and the middle portion of the electrical contact terminal has a right-angled bending angle.
  • the inner wall of the upper casing is provided with at least one limiting rib.
  • a position on the heat dissipation support opposite to the main chip on the antenna board is provided with a thermal pad for rapidly conducting the heat of the main chip to the heat dissipation support.
  • the power board is provided with a socket for electrical plugging with the antenna board, and the antenna board is provided with plug terminals for electrical plugging with the socket; or ,
  • the power board is provided with a plug terminal for electrically plugging with the antenna board, and the antenna board is provided with a socket for electrically plugging with the plug terminal.
  • the millimeter wave reversing radar provided by the present invention is provided by arranging the antenna plate and the power supply plate that can transmit and receive the millimeter wave signal on both sides of the heat dissipation bracket, and the radar interface terminal is arranged to be electrically connected to the power supply plate, and the casing is arranged for the storage
  • It can install and fix components such as the power board, and its heat dissipation bracket has both heat dissipation and loading support functions, so that the millimeter wave parking radar can be small and compact in structure, and the requirements for the installation scene are greatly reduced, and it can be easily installed on the car frame or In the gaps such as the chassis of the car, it can be installed and used well even for narrow installation parts, and the millimeter wave signal penetration ability of its antenna plate is strong, and it can penetrate parts such as bumpers well, so even if It is installed on the car frame, and it will not affect its detection and reversing, parking reminder functions. Therefore, it can provide a more stable driver's license without damaging the appearance of
  • FIG. 1 is a perspective view of a millimeter-wave parking radar provided by an embodiment of the present invention
  • FIG. 2 is an exploded schematic diagram of a millimeter-wave reversing radar provided by an embodiment of the present invention
  • FIG. 3 is a schematic perspective view of a heat dissipation support provided by an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a millimeter-wave parking radar provided by an embodiment of the present invention after the base is removed;
  • FIG. 5 is a schematic diagram of an upper casing provided by an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a millimeter-wave reversing radar provided by an embodiment of the present invention installed on a vehicle frame;
  • FIG. 7 is a block diagram of a control principle when the millimeter-wave parking radar according to an embodiment of the present invention is installed on a vehicle.
  • azimuth terms such as left, right, upper and lower in this embodiment are only relative concepts or refer to the normal use state of the product, and should not be regarded as limiting.
  • the millimeter-wave reversing radar 100 provided by the embodiment of the present invention includes a heat dissipation support 1, an antenna board 2 and a power supply board 3.
  • the antenna board 2, the heat dissipation support 1 and the power supply board 3 are stacked in sequence, that is, the antenna board 2 and the power supply board 3 are respectively arranged in
  • the antenna plate 2 and the power supply plate 3 are fixed on the heat dissipation bracket 1.
  • the millimeter wave parking radar 100 provided by the present invention also includes a housing 4 with an inner cavity and a radar interface terminal 5.
  • the radar interface terminal 5 The antenna board 2 and the antenna board 2 are electrically connected to the power board 3 , and the antenna board 2 , the heat dissipation bracket 1 and the power board 3 are all accommodated in the inner cavity of the casing 4 .
  • the main chip 21 is provided on the antenna board 2, and the main chip 21 is used to control the transmission, reception, signal processing and algorithm operation of the millimeter wave signal of the millimeter wave reversing radar, that is, the antenna board 2 is used for transmitting the millimeter wave, and the receiving is performed by The millimeter wave reflected by the obstacle is used to process the radio frequency signal of the millimeter wave, and then it is controlled by the main chip 21; And it is also used for data exchange with the antenna board 2; the radar interface terminal 5 is used for electrical connection with the control module of the car, and the heat dissipation bracket 1 provides installation support for the antenna board 2 and the power board 3 on the one hand, and on the other hand, Since the antenna board 2 and the power board 3 will generate heat during operation, the heat dissipation bracket 1 can provide heat conduction and heat dissipation function for them at the same time, so as to avoid the reduction of reliability and service life due to the high working temperature.
  • metal materials such as aluminum and iron.
  • Metal materials such as aluminum and iron have good heat dissipation performance, which can quickly dissipate heat from the antenna board 2 and the power board 3 .
  • the millimeter-wave signal has strong penetration ability, it can better penetrate bumpers, sand, smoke, etc., so even if the millimeter-wave parking radar provided by the embodiment of the present invention is installed on the frame of the car , can also play a relatively stable reminder function, so it can still better complete the reversing and parking reminder functions without affecting the appearance of the car.
  • the antenna plate 2 and the power supply plate 3 that can transmit and receive millimeter wave signals are respectively arranged on both sides of the heat dissipation bracket 1, and the radar interface terminal 5 is arranged to be electrically connected to the power supply plate 3,
  • the casing 4 is provided for accommodating and fixing the power board 3 and other components, and the heat dissipation bracket 1 has both the functions of heat dissipation and loading support, so that the millimeter wave parking radar has a small and compact structure, and the requirements for the installation scene are greatly reduced, which can be easily installed.
  • the main chip 21 on the antenna plate 2 can transmit and receive millimeter wave signals, and the millimeter wave signals pass through It can penetrate parts such as bumpers well, so even if it is installed on the car frame, it will not affect its detection, reversing, and parking reminder functions. Under the condition of not destroying the appearance of the car, it provides the driver's license with more stable reminder functions such as reversing and parking, which can reduce the occurrence of collisions and improve the safety of the car.
  • the housing 4 includes an upper casing 41 with an inner cavity and a base 42 butted with the upper casing 41 to form a closed cavity.
  • the heat dissipation bracket 1 , the antenna board 2 and the power board 3 are all disposed in the closed cavity.
  • the heat dissipation support 1 and the antenna board 2 are arranged above the power board 3 in sequence, and the antenna board 2, the heat dissipation support 1, and the power board 3 can be locked and fixed together by fasteners such as screws.
  • At least one mounting fixing piece 421 is disposed on the side wall of the base 42 , which is used as a special fixed installation position when the base 42 is installed with an external carrier such as an automobile.
  • the upper casing 41 and the base 42 form a closed cavity, which can provide dustproof and waterproof protection functions for the antenna board 2, the heat dissipation bracket 1, the power board 3, etc., which are accommodated in the closed cavity.
  • it When driving on the road, it often brings up the dust, mud, etc. on the road, and the frame is relatively close to the road, so it needs to provide a higher level of protection function, and the setting of the upper casing 41 and the base 42 can be Provides better dust and moisture resistance.
  • a first accommodating cavity 11 can be provided on the wall surface of the heat dissipation bracket 1 opposite to the antenna plate 2
  • a second accommodating cavity 12 can be provided on the wall surface of the heat dissipation bracket 1 opposite to the power board 3
  • An accommodating cavity 11 and a second accommodating cavity 12 can respectively accommodate the electronic devices on the antenna board 2 and the power board 3, so that the heat dissipation bracket 1 provides support and heat dissipation functions for the antenna board 2 and the power board 3 at the same time.
  • the volume and thickness of the heat dissipation bracket 1 will not be too large, thereby ensuring the compactness of the entire millimeter-wave parking radar structure.
  • a thermal pad 13 is disposed on the heat dissipation bracket 1 at a position opposite to the main chip 21 , so as to quickly conduct the heat of the main chip 21 to the heat dissipation bracket 1 for heat dissipation. Since the main chip 21 consumes a relatively large amount of electricity Therefore, the heat conduction pad 13 with high heat conduction efficiency specially designed to dissipate heat from the main chip 21 is used to dissipate heat to the main chip 21, so as to solve the problem that the local temperature is too high and the main chip 21 is easily dissipated. Burnout problem. Specifically, the thermally conductive pad 13 can be made of materials with high thermal conductivity and relatively low cost, such as aluminum sheets and iron sheets.
  • the radar interface terminal 5 includes an interface circuit board (not shown in the figure), an electrical contact terminal 51 electrically connected to the interface circuit board, and an interface shell
  • the body 52 , the interface casing 52 is a waist-shaped cylindrical body structure, the interface circuit board is fixed inside the interface casing 52 , and the electrical contact terminals 51 are electrically connected to the power board 3 .
  • the radar interface terminal 5 can be used for signal communication and power supply between the car and the millimeter wave parking radar.
  • the interface casing 52 is located outside the upper casing 41 , and the interface casing 52 and the upper casing 41 are integrally injection-molded, and the electrical contact terminals 51 pass through the upper casing 41 and are electrically connected to the power board 3 .
  • the interface housing 52 and the upper housing 41 of the radar interface are integrally injection-molded to avoid forming connection gaps after being separately molded, and too many connection gaps will inevitably affect its dust-proof and moisture-proof functions. Therefore, this embodiment
  • the interface housing 52 and the upper housing 41 are integrally formed, which can improve the dust-proof and moisture-proof performance of the millimeter-wave reversing radar as a whole.
  • the electrical contact terminal 51 of the embodiment of the present invention may be a fisheye pin, one end of the fisheye pin is electrically connected to the interface circuit board of the radar interface terminal 5 , and the other end is electrically plugged into the power board 3 That is to say, its end is electrically plugged on the power board 3.
  • the power board 3 is provided with a fisheye terminal socket 32 (not shown in the figure) that is connected with the fisheye socket, so that the The radar interface terminal 5 can perform signal communication and power supply with the power board 3 .
  • the electrical contact terminal 51 is an interference fit with the fisheye terminal socket 32 , and the middle of the electrical contact terminal 51 has a bending angle.
  • the radar interface terminal 5 is provided on the upper casing 41 .
  • the power board 3 and the side wall of the upper casing 41 are vertically arranged, and the electrical contact terminal 51 is bent 90 degrees and then plugged into the fisheye terminal socket 32, so that the electrical contact terminal 51 and the power board 3 can be solved.
  • the electrical contact terminal 51 and the fisheye terminal socket 32 on the power board 3 are fitted with an interference fit, so that the electrical contact terminal 51 can be firmly connected to the power board 3. It can avoid the problem that the electric contact terminal 51 is easily detached from the power supply board 3 due to the frequent bumpy driving of the car on the road, resulting in power failure and disconnection of the communication connection.
  • At least one limiting rib is provided on the inner wall of the upper casing 41 .
  • there are three limiting ribs wherein the first limiting rib 411 and the second limiting rib 412 are respectively arranged on the same side in the inner cavity of the square upper casing 41 , and the third limiting rib
  • the rib 413 is arranged on the opposite side of the first limiting rib 411 and the second limiting rib 412 in the square upper casing 41 , so that the first limiting rib 411 , the second limiting rib 412 and the third limiting rib 413 forms a triangular limit structure, so that the heat dissipation bracket 1 and the upper casing 41 can be stably limited and positioned.
  • the heat dissipation bracket and the like are quickly installed in the upper case 41 .
  • the upper casing 41 and the base 42 may be connected by ultrasonic welding.
  • An ultrasonic welding line can be designed on the butting surface of the upper shell 41 and the base 42, so that after the ultrasonic welding is used between the upper shell 41 and the base 42, the fixed connection between the upper shell 41 and the base 42 can be ensured. , and can meet the requirements of higher dustproof and waterproof grades.
  • the power board 3 is provided with a socket 31 for electrically plugging with the antenna board 2
  • the antenna board 2 is provided with plug terminals 22 for electrically plugging with the socket 31 .
  • the power supply board 3 is provided with a plug terminal (not shown in the figure) for electrical plugging with the antenna board 2
  • the antenna board 2 is provided with a plug socket for electrical plugging with the plug terminal (in the figure). not shown), which can also implement functions such as communication transmission.
  • FIG. 6 it is a schematic diagram of installation when the millimeter-wave reversing radar 100 is installed on the vehicle frame 7 according to the embodiment of the present invention.
  • Millimeter wave parking radar 100 only needs a small installation gap, and the millimeter wave signal emitted by it can penetrate the bumper 8. Even in the weather such as dust and smoke, it can transmit and receive relatively stable signal, thus providing the driver with a more stable and safer reversing and parking reminder experience.
  • FIG. 7 it is a block diagram of the control principle when the millimeter wave parking sensor is installed on the vehicle according to the embodiment of the present invention.
  • the antenna board is used to transmit millimeter-wave signals, receive the millimeter-wave signals reflected by obstacles, and perform radio frequency signal processing on the millimeter-wave and then perform algorithm control through the main chip; data exchange between boards.
  • the main chip on the antenna board transmits and receives millimeter wave signals, and determines the relative distance, relative angle and relative speed between the car and the obstacle after processing the signals.
  • the millimeter-wave reversing radar provided by the embodiment of the present invention can prevent a car from colliding with an obstacle when the car is reversing, thereby improving the safety of the car and reducing the occurrence rate of collision.

Abstract

一种毫米波倒车雷达（100），通过设置可发射及接收毫米波信号的天线板（2）及将天线板（2）和电源板（3）分别设置于散热支架（1）的两侧，并设置雷达接口端子（5）与电源板（3）电连接，设置外壳（4）用于容置及固定电源板（3）等部件，从而使得该毫米波倒车雷达（100）不仅能穿透保险杠（8）等部件，即使是将其装设在汽车车架（7）上，也不会影响其探测及倒车、驻车提示提醒功能，因此，可在保证不破坏汽车的外观的美观度的情况下，为驾照者提供较稳定的倒车、驻车等提示提醒功能，且散热支架（1）兼具散热及装载支撑功能，结构小巧紧凑，可较方便地装设在汽车车架上（7）或汽车底盘等间隙狭窄处。

Description

一种毫米波倒车雷达
本申请要求于2021年04月21日提交中国专利局、申请号为202110429552.4、申请名称为“一种毫米波倒车雷达”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明属于雷达技术领域，尤其涉及一种毫米波倒车雷达。
背景技术
倒车雷达是汽车驻车或者倒车时的安全辅助装置，能以声音或者更为直观的提示告知驾驶员周围障碍物的情况，消除了驾驶员驻车、倒车和起动车辆时前后左右探视所引起的困扰，并帮助驾驶员扫除了视野盲区和克服了视线模糊的缺陷。但现有的倒车雷达其信号通常无法透过汽车保险杠，导致安装在汽车车架上时无法给驾驶员提供较稳定的提示提醒作用，而将其安装在汽车保险杠上，虽然可解决因信号不佳导致无法提供较准确的提示作用的问题，但是，安装在汽车保险杠上需要在汽车保险杠上开孔，而汽车作为高价值的消费品，人们通常对于其外观的美观度有较高的要求，在汽车保险杠上开孔必然会影响汽车的整体外观的美观性。
发明内容
本发明的目的在于提供一种毫米波倒车雷达，旨在解决现有技术的倒车雷达无法同时满足既可提供信号较稳定的倒车提示功能又同时保证不会影响汽车整体外观美观性的问题。
本发明是这样实现的：一种毫米波倒车雷达，其包括散热支架、设于所述散热支架一侧且可发射及接收毫米波信号的天线板、设于所述散热支架另一侧的电源板，所述天线板、所述散热支架及所述电源板依次层叠设置，所述毫 米波倒车雷达还包括具有内腔的外壳及雷达接口端子，所述雷达接口端子和所述天线板均与所述电源板电连接，所述天线板上具有用于控制所述毫米波信号以及进行算法运算的主芯片，所述天线板、所述散热支架及所述电源板均容置于所述外壳的内腔中。
在一些实施例中，所述外壳包括具有内腔的上壳体及与所述上壳体对接形成闭合腔体的底座，所述天线板、所述散热支架及所述电源板均容置于所述闭合腔体内。
在一些实施例中，所述散热支架与所述天线板相对的一侧设置有用于容置所述天线板上的电子器件的第一容置腔，所述散热支架与所述电源板相对的一侧设置有用于容置所述电源板上的电子器件的第二容置腔。
在一些实施例中，所述雷达接口端子包括接口线路板、电连接于所述接口线路板上的电接触端子及接口壳体，所述接口线路板固设于所述接口壳体上，所述电接触端子与所述电源板电连接。
在一些实施例中，所述接口壳体位于所述上壳体的外侧，且所述接口壳体与所述上壳体一体成型，所述电接触端子穿越所述上壳体后与所述电源板电连接。
在一些实施例中，所述电接触端子为鱼眼插针，所述鱼眼插针的末端电插接于所述电源板上，所述电源板上设有与所述鱼眼插针对接的鱼眼端子插接口。
在一些实施例中，所述电接触端子与所述鱼眼端子插接口为过盈配合，所述电接触端子的中部具有直角弯折角。
在一些实施例中，所述上壳体的内壁设置有至少一限位筋。
在一些实施例中，所述散热支架上与所述天线板上的主芯片相对的位置设置有用于将所述主芯片的热量快速传导至所述散热支架上的导热垫。
在一些实施例中，所述电源板上设置有用于与所述天线板电插接的插接座，所述天线板上设置有用于与所述插接座电插接的插接端子；或者，
所述电源板上设置有用于与所述天线板电插接的插接端子，所述天线板上设置有用于与该所述插接端子电插接的插接座。
本发明提供的毫米波倒车雷达，其通过将可发射及接收毫米波信号的天线板及电源板分别设置于散热支架的两侧，并设置雷达接口端子与电源板电连接，设置外壳用于容置及固定电源板等部件，其散热支架兼具散热及装载支撑功能,从而可使得该毫米波倒车雷达结构小巧紧凑，对装设场景的要求大幅降低，可便于装设在汽车车架上或汽车底盘等间隙处，即使对于狭窄的安装部位，其也可以较好地安装使用，且其天线板的毫米波信号穿透能力较强，其可较好地穿透保险杠等部件，因而即使是将其装设在汽车车架上，也不会影响其探测及倒车、驻车提示提醒功能，因此，可在保证不破坏汽车的外观的美观度的情况下，为驾照者提供较稳定的倒车、驻车等提示提醒功能，减少碰撞的发生，提高了汽车的安全性。
附图说明
图1是本发明实施例提供的毫米波倒车雷达的立体图；
图2是本发明实施例提供的毫米波倒车雷达的爆炸示意图；
图3是本发明实施例提供的散热支架的立体示意图；
图4是本发明实施例提供的毫米波倒车雷达去掉底座后的示意图；
图5是本发明实施例提供的上壳体的示意图；
图6是本发明实施例提供的毫米波倒车雷达装设于汽车车架上时的示意图；
图7为本发明实施例提供的毫米波倒车雷达装设于汽车上时的控制原理模块图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅 仅用以解释本发明，并不用于限定本发明。
需要说明的是，当元件被称为“固定于”或“设置于”另一个元件，它可以直接在另一个元件上或者可能同时存在居中元件。当一个元件被称为“连接于”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。
还需要说明的是，本实施例中的左、右、上、下等方位用语，仅是互为相对概念或是以产品的正常使用状态为参考的，而不应该认为是具有限制性的。
如图1、图2和图3所示，为本发明实施例提供的一种毫米波倒车雷达的相关示意图。本发明实施例提供的毫米波倒车雷达100包括散热支架1、天线板2及电源板3，天线板2、散热支架1及电源板3依次层叠设置，即天线板2和电源板3分别设于散热支架1的相对两侧，天线板2、电源板3均固定于散热支架1上，本发明提供的毫米波倒车雷达100还包括具有内腔的外壳4及雷达接口端子5，雷达接口端子5和天线板2均与电源板3电连接，天线板2、散热支架1及电源板3均容置于外壳4的内腔中。其中，天线板2上设置有主芯片21，主芯片21用于控制毫米波倒车雷达的毫米波信号的发射、接收、信号处理以及进行算法运算，即天线板2用于发射毫米波，接收由障碍物反射回来的毫米波，并对毫米波进行射频信号处理，再通过主芯片21进行算法控制；电源板3主要用于给天线板2、雷达接口端子5等线路板及电子器件进行供电，以及还用于与天线板2之间进行数据交换；雷达接口端子5用于与汽车的控制模块电连接，散热支架1一方面给天线板2、电源板3提供安装支撑功能，另一方面，由于天线板2和电源板3在工作时会产生热量，散热支架1可同时为其提供导热散热功能，避免因工作温度过高而导致其可靠性和寿命降低的情况发生，散热支架1具体可采用铝、铁等金属材料制成，铝、铁等金属材料具有较好的散热性能，可对天线板2、电源板3进行快速地散热。进一步地，由于毫米波信号穿透能力较强，其可较好地穿透保险杠、沙尘、烟雾等，因而即使将本发明实施例提供的毫米波倒车雷达装设在汽车的车架上，也可起到较稳定地提示提醒功能，因而可在不对汽车外观造成影响的情况下依然能较好地完成倒车、驻车提示提醒功能。
本发明提供的毫米波倒车雷达，其通过将可发射及接收毫米波信号的天线板2及电源板3分别设置于散热支架1的两侧，并设置雷达接口端子5与电源板3电连接，设置外壳4用于容置及固定电源板3等部件，散热支架1兼具散热及装载支撑功能,从而使得该毫米波倒车雷达结构小巧紧凑，对装设场景的要求大幅降低，可便于装设在汽车车架上或汽车底盘等间隙处，即使对于狭窄的安装部位，其也可以较好地安装使用，且其天线板2上的主芯片21可发射及接收毫米波信号，毫米波信号穿透能力较强，其可较好地穿透保险杠等部件，因而即使是将其装设在汽车车架上，也不会影响其探测及倒车、驻车提示提醒功能，因此，可在保证不破坏汽车的外观的美观度的情况下，为驾照者提供较稳定的倒车、驻车等提示提醒功能，可减少碰撞的发生，提高汽车的安全性。
在一些实施例中，外壳4包括具有内腔的上壳体41及与上壳体41对接形成闭合腔体的底座42，散热支架1、天线板2、电源板3均设于该闭合腔体内，散热支架1、天线板2依次设于电源板3的上方，天线板2、散热支架1、电源板3可通过螺丝等紧固件锁紧固定连接在一起。底座42的侧壁上设置有至少一安装固定片421，以用于底座42与汽车等外部载体安装时作为专门的固定安装位使用。上壳体41和底座42形成闭合腔体，可给容置于该闭合腔体内的天线板2、散热支架1、电源板3等提供防尘防水的防护功能，因汽车车架较低，汽车在路面上行驶时其常常将路面上的尘土、泥浆等带起，而车架距离路面又较近，因而需要提供较高等级的防护功能，而上壳体41和底座42的设置，即可提供较好的防尘防湿功能。
作为一较佳实施例，可在散热支架1上与天线板2相对的壁面设置第一容置腔11，在散热支架1上与电源板3相对的壁面设置第二容置腔12，设置第一容置腔11和第二容置腔12，可分别容置天线板2和电源板3上的电子器件，使得散热支架1在给天线板2和电源板3提供支撑及散热功能的同时，不致使散热支架1的体积和厚度过大，从而保证整个毫米波倒车雷达结构的紧凑性。
在一些实施例中，散热支架1上与主芯片21相对的位置设置有导热垫13，以用于将主芯片21的热量快速传导至散热支架1上进行散热，由于主芯片21耗费电量相对较大，其产生的局部热量较大，为此，采用专门对主芯片21进行散热的导热效率较高的导热垫13对主芯片21进行专门散热，以解决局部温 度过高而易将主芯片21烧坏的问题。具体地，导热垫13可采用铝片、铁皮等热传导效率较高、成本相对较低的材质制造。
作为一具体实施方式，同时参见图1、图2和图4，雷达接口端子5包括接口线路板(图中未示出)、电连接于所述接口线路板上的电接触端子51及接口壳体52，接口壳体52为腰形筒状体结构，所述接口线路板固设于接口壳体52的内部，电接触端子51与电源板3电连接。雷达接口端子5可用于汽车与毫米波倒车雷达之间的信号通信以及供电。
在一些实施例中，接口壳体52位于上壳体41的外侧，且接口壳体52与上壳体41一体注塑成型，电接触端子51穿越上壳体41后与电源板3电连接。将雷达接口的接口壳体52与上壳体41一体注塑成型，可避免单独成型后再连接形成连接缝隙，而过多的连接缝隙，必然会对其防尘防湿功能造成影响，因而本实施例的接口壳体52与上壳体41一体成型，可提升毫米波倒车雷达整体的防尘防湿性能。
在一些实施例中，本发明实施例的电接触端子51可为鱼眼插针，所述鱼眼插针一端与雷达接口端子5的接口线路板电连接，另一端电插接于电源板3上，也即其末端电插接于电源板3上，相应地，在电源板3上设有与所述鱼眼插针对接的鱼眼端子插接口32(图中未示出)，以使得雷达接口端子5可与电源板3之间进行信号通信及进行供电。
在一些实施例中，电接触端子51与所述鱼眼端子插接口32为过盈配合，电接触端子51的中部具有弯折角，本实施例中，雷达接口端子5设于上壳体41的侧端，电源板3与上壳体41的侧壁为垂直设置，将电接触端子51弯折90度后与鱼眼端子插接口32插接，这样，可解决电接触端子51与电源板3为平行设置而不方便插接的问题，将电接触端子51与电源板3上的鱼眼端子插接口32采用过盈配合，可使得电接触端子51紧固地连接于电源板3上，因而可避免汽车在路面行驶时经常颠簸而导致电接触端子51容易从电源板3上脱离从而导致断电及断开通信连接的问题。
在一些实施例中，参见图4和图5，上壳体41的内壁上设置有至少一限位筋。本实施例中，所述限位筋设置有三个，其中，第一限位筋411、第二限 位筋412分别间隔设于方形上壳体41的内腔内的同一侧，第三限位筋413设于方形上壳体41内与第一限位筋411、第二限位筋412相对的一侧，这样，第一限位筋411、第二限位筋412、第三限位筋413形成三角形限位结构，从而可稳固地对散热支架1与上壳体41进行限位与定位，同时，限位筋也可在其装设过程中提供安装导向功能，使得在组装过程中可迅速地将散热支架等安装在上壳体41内。在一些实施例中，上壳体41与底座42可通过超声波熔接连接。可在上壳体41与底座42对接的面上设计超声波焊接线，以使得上壳体41与底座42之间采用超声波熔接焊接后，既能保证上壳体41与底座42之间的固定连接，又能满足较高的防尘防水等级要求。
在一些实施例中，参见图2，电源板3上设置有用于与天线板2电插接的插接座31，天线板2上设置有用于与插接座31电插接的插接端子22，通过插接座31与插接端子22的电连接，以实现电源板3和天线板2之间的通信及数据传输等功能；或者，可将插接座31和插接端子22互相对调，即在电源板3上设置有用于与天线板2电插接的插接端子(图中未示出)，天线板2上设置有用于与该插接端子电插接的插接座(图中未示出)，其同样可实现通信传输等功能。
参见图6，为本发明实施例给出的将毫米波倒车雷达100装设于汽车车架7上时的安装示意图，毫米波倒车雷达100与保险杠8相对设置，采用本发明实施例提供的毫米波倒车雷达100，其只需较小的安装间隙即可，且其发射出的毫米波信号可穿透保险杠8，即使在沙尘、烟雾等天气，其也可发射与接收较稳定的信号，从而给驾驶者提供稳定性较好、安全性较高的倒车、驻车提示提醒体验。
参见图7，为本发明实施例给出的毫米波倒车雷达装设于汽车上时的控制原理模块图。天线板，用于发射毫米波信号，接收由障碍物反射回来的毫米波信号，并对毫米波进行射频信号处理再通过主芯片进行算法控制；电源板，用于给天线板供电，以及与天线板之间进行数据交换。天线板上的主芯片通过发射和接收毫米波信号，通过处理信号后确定汽车与所述障碍物的相对距离、相对角度和相对速度。本发明实施例提供的毫米波倒车雷达可防止汽车在倒车的情况下与障碍物发生碰撞，提高了汽车的安全性，可减少碰撞的发生率。
以上仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换或改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种毫米波倒车雷达，其特征在于：包括散热支架、设于所述散热支架一侧且可发射及接收毫米波信号的天线板、设于所述散热支架另一侧的电源板，所述天线板、所述散热支架及所述电源板依次层叠设置，所述毫米波倒车雷达还包括具有内腔的外壳及雷达接口端子，所述雷达接口端子和所述天线板均与所述电源板电连接，所述天线板上具有用于控制所述毫米波信号以及进行算法运算的主芯片，所述天线板、所述散热支架及所述电源板均容置于所述外壳的内腔中。
  2. 如权利要求1所述的毫米波倒车雷达，其特征在于：所述外壳包括具有内腔的上壳体及与所述上壳体对接形成闭合腔体的底座，所述天线板、所述散热支架及所述电源板均容置于所述闭合腔体内。
  3. 如权利要求1所述的毫米波倒车雷达，其特征在于：所述散热支架与所述天线板相对的一侧设置有用于容置所述天线板上的电子器件的第一容置腔，所述散热支架与所述电源板相对的一侧设置有用于容置所述电源板上的电子器件的第二容置腔。
  4. 如权利要求2所述的毫米波倒车雷达，其特征在于：所述雷达接口端子包括接口线路板、电连接于所述接口线路板上的电接触端子及接口壳体，所述接口线路板固设于所述接口壳体上，所述电接触端子与所述电源板电连接。
  5. 如权利要求4所述的毫米波倒车雷达，其特征在于：所述接口壳体位于所述上壳体的外侧，且所述接口壳体与所述上壳体一体成型，所述电接触端子穿越所述上壳体后与所述电源板电连接。
  6. 如权利要求4所述的毫米波倒车雷达，其特征在于：所述电接触端子为鱼眼插针，所述鱼眼插针的末端电插接于所述电源板上，所述电源板上设有与 所述鱼眼插针对接的鱼眼端子插接口。
  7. 如权利要求6所述的毫米波倒车雷达，其特征在于：所述电接触端子与所述鱼眼端子插接口为过盈配合，所述电接触端子的中部具有直角弯折角。
  8. 如权利要求2所述的毫米波倒车雷达，其特征在于：所述上壳体的内壁设置有至少一限位筋。
  9. 如权利要求1所述的毫米波倒车雷达，其特征在于：所述散热支架上与所述天线板上的主芯片相对的位置设置有用于将所述主芯片的热量快速传导至所述散热支架上的导热垫。
  10. 如权利要求1至9任一项所述的毫米波倒车雷达，其特征在于：所述电源板上设置有用于与所述天线板电插接的插接座，所述天线板上设置有用于与所述插接座电插接的插接端子；或者，
    所述电源板上设置有用于与所述天线板电插接的插接端子，所述天线板上设置有用于与该所述插接端子电插接的插接座。
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