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CN-122017744-A - Radio frequency front end and antenna array integrated packaging device for millimeter wave radar

CN122017744ACN 122017744 ACN122017744 ACN 122017744ACN-122017744-A

Abstract

The invention discloses a radio frequency front end and antenna array integrated packaging device for a millimeter wave radar, which comprises a main board, radar chips and antenna modules, wherein the radar chips and the antenna modules are arranged on the upper surface and the lower surface of the main board in a distributed manner, baffle plates are arranged on the outer sides of the radar chips and the antenna modules, frame bodies are arranged on the inner sides of the baffle plates, a sealing cavity is formed between the frame bodies and the baffle plates, the sealing cavity is sleeved outside the radar chips and the antenna modules and is used for packaging the radar chips and the antenna modules, cross bars are arranged on the opposite surfaces of the baffle plates, protection sheets are arranged on the two sides of the cross bars, and a driving mechanism for driving the protection sheets to stretch outwards is arranged on one side of the main board. The invention has simple structure, realizes normal packaging protection of the radar chip and the antenna module through the movable protection sheet and the sealing cavity structure, can rapidly form temporary protection on other electronic elements on the main board during maintenance, and improves the safety and maintenance convenience of equipment.

Inventors

  • ZHENG JIANCHAO
  • WANG GANG
  • TANG HUIQIONG
  • ZHANG XIAOGANG
  • YOU XUEQIANG
  • HE HANBING
  • YANG ZONGHAN

Assignees

  • 珠海中科慧智科技有限公司

Dates

Publication Date
20260512
Application Date
20260403

Claims (9)

  1. 1. The integrated packaging device for the radio frequency front end and the antenna array of the millimeter wave radar is characterized by comprising a main board (1), a radar chip (15) and an antenna module, wherein the radar chip (15) and the antenna module are arranged on the upper surface and the lower surface of the main board (1) in a distributed mode, a baffle (2) is arranged on the outer sides of the radar chip (15) and the antenna module, a frame body (3) is arranged on the inner side surface of the baffle (2), a sealing cavity is formed between the frame body (3) and the baffle (2), the sealing cavity is sleeved outside the radar chip (15) and the antenna module and is packaged, transverse rods (4) are arranged on the opposite sides of the baffle (2), protective sheets (11) are arranged on two sides of each transverse rod (4), and a driving mechanism for driving the protective sheets (11) to stretch outwards is arranged on one side of the main board (1).
  2. 2. The integrated packaging device for the radio frequency front end and the antenna array of the millimeter wave radar of claim 1, wherein the driving mechanism comprises a holding rod (7) and a plurality of screw rods (6), connecting seats (5) are arranged on two sides of the protection sheet (11), screw rod holes are formed in the connecting seats (5) on one side, mounting holes are formed in positions, opposite to the screw rod holes, of the cross rod (4), first bearings are arranged in the mounting holes, the screw rods (6) are arranged in inner rings of the first bearings, two ends of the screw rods (6) are in threaded connection with the screw rod holes, and one end of one screw rod (6) is fixedly connected with the holding rod (7).
  3. 3. The integrated packaging device for the radio frequency front end and the antenna array of the millimeter wave radar, which is disclosed in claim 2, is characterized in that positioning holes are formed in the connecting seat (5) on the other side, positioning frames (12) are inserted into the positioning holes, connecting pieces (13) are arranged at two ends of each positioning frame (12), and one end of each connecting piece (13) is arranged at the corner of the main board (1).
  4. 4. The integrated packaging device for the radio frequency front end and the antenna array of the millimeter wave radar according to claim 2 is characterized in that a fixing seat (10) is arranged at the corner of the main board (1), the fixing seat (10) is in a T-shaped structure, one end, connected with the main board (1), of the fixing seat (10) is removed, second bearings are embedded in the remaining two ends, and one end, far away from the holding rod (7), of the screw rod (6) is arranged in an inner ring of the second bearings.
  5. 5. The integrated packaging device for the radio frequency front end and the antenna array of the millimeter wave radar, which is disclosed in claim 2, is characterized in that one end of the screw rod (6) close to the holding rod (7) is provided with synchronous wheels (8), and the two synchronous wheels (8) are provided with synchronous belts (9).
  6. 6. The integrated packaging device for the radio frequency front end and the antenna array of the millimeter wave radar according to claim 1, wherein a plurality of supporting seats (14) are arranged at two ends of the width direction of the main board (1), the bottom surface of each supporting seat (14) is lower than the bottom surface of the lower Fang Henggan (4), and fixing holes penetrating through the supporting seats (14) are vertically formed in each supporting seat (14).
  7. 7. The integrated packaging device for the radio frequency front end and the antenna array of the millimeter wave radar according to claim 1, wherein the protection sheets (11) are contracted together in a serpentine structure, and the protection sheets (11) are made of rubber materials.
  8. 8. The integrated packaging device for the radio frequency front end and the antenna array of the millimeter wave radar according to claim 1, wherein rubber layers are arranged on opposite surfaces of the frame body (3), and the rubber layers are in contact with the upper surface and the lower surface of the main board (1).
  9. 9. The integrated packaging device for the radio frequency front end and the antenna array of the millimeter wave radar, which is disclosed in claim 1, is characterized in that positioning grooves (17) are formed on two sides of the length direction of the main board (1), the inner side surfaces of the baffle plates (2) are protruded to the positions of the positioning grooves (17) to form positioning parts (16), and the positioning parts (16) are inserted into the positioning grooves (17).

Description

Radio frequency front end and antenna array integrated packaging device for millimeter wave radar Technical Field The invention relates to the technical field of radars, in particular to a radio frequency front end and antenna array integrated packaging device for a millimeter wave radar. Background Millimeter wave radar is a sensor technology that utilizes electromagnetic waves in the millimeter wave band for detection, ranging, speed measurement and imaging. By transmitting millimeter wave signals and receiving echoes reflected by the target, target information is acquired by analyzing the time difference (ranging), frequency variation (velocity measurement, doppler effect) and phase difference (recognition of shape and angle) of the echoes. At present, the structure of the radio frequency front end (radar chip) and the antenna array (antenna module) that millimeter wave radar inside set up lacks the encapsulation outside, causes directly exposing, influences the security to when dismantling in the follow-up, lack the protection to the electronic component on the mainboard, remove and take out the in-process appear in electronic component's the scratch easily, cause electronic component's damage etc.. Disclosure of Invention In order to solve the above-mentioned problems, the present invention provides a radio frequency front end and antenna array integrated packaging device for millimeter wave radar, which can cover the radar chip and antenna module for packaging, so as to solve the problems mentioned in the background art. The invention is realized by the following technical scheme that the radio frequency front end and antenna array integrated packaging device for the millimeter wave radar comprises a main board, radar chips and antenna modules, wherein the radar chips and the antenna modules are arranged on the upper surface and the lower surface of the main board in a distributed manner, baffles are arranged on the outer sides of the radar chips and the antenna modules, frame bodies are arranged on the inner side surfaces of the baffles, a sealing cavity is formed between the frame bodies and the baffles, the sealing cavity is sleeved outside the radar chips and the antenna modules and is used for packaging the radar chips and the antenna modules, cross bars are arranged on the opposite surfaces of the baffles, protective sheets are arranged on the two sides of the cross bars, and a driving mechanism for driving the protective sheets to stretch outwards is arranged on one side of the main board. As the preferred technical scheme, actuating mechanism includes holding rod and many lead screws, and the connecting seat is all installed to the both sides of protection piece, all is equipped with the lead screw hole on the connecting seat of one side, and the horizontal pole is just to all being equipped with the mounting hole in lead screw hole department, all installs first bearing in the mounting hole, and the lead screw is all installed in the inner circle of first bearing, and the both ends of lead screw all with lead screw hole threaded connection, one of them one end and holding rod fixed connection of lead screw. As the preferable technical scheme, all be equipped with the locating hole on the connecting seat of opposite side, inserted the locating frame in the locating hole, the connecting piece is installed at the both ends of locating frame, and the corner in the mainboard is installed to one end of connecting piece. As the preferable technical scheme, the fixing base is installed at the bight of mainboard, and the fixing base is "T" type structure setting, and the one end of fixing base's removal and mainboard connection, the embedded second bearing that installs in the remaining both ends, the one end that the holding rod was kept away from to the lead screw is installed in the inner circle of second bearing. As the preferable technical scheme, one end of the screw rod, which is close to the holding rod, is provided with synchronous wheels, and synchronous belts are arranged on the two synchronous wheels. As the preferable technical scheme, a plurality of supporting seats are all installed at the both ends of mainboard width direction, and the bottom surface of supporting seat is less than the bottom surface of below horizontal pole, all is equipped with the fixed orifices that runs through the supporting seat perpendicularly on the supporting seat. As a preferable technical scheme, the protection sheets are contracted together in a serpentine structure, and the protection sheets are all made of rubber materials. As the preferable technical scheme, rubber layers are arranged on the opposite surfaces of the frame body, and the rubber layers are contacted with the upper surface and the lower surface of the main board. As the preferable technical scheme, the both sides of mainboard length direction are equipped with the constant head tank, and the medial surface of baffle just forms the constant