Transmitting circuit board assembly, transmitting module, assembling method of transmitting module and laser radar
A circuit board assembly and laser emitting technology, which is applied in the field of laser measurement, can solve the problems of loosening of the fastening structure of the fixing frame assembly and the outer wall of the support part of the rotating shaft, damage and failure of the printed circuit board, etc., so as to improve the laser position change, Reduce the loosening or failure of the fastening structure, and facilitate the removal and installation of the effect
Pending Publication Date: 2022-05-27
HESAI TECH CO LTD
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Problems solved by technology
[0005] When removing multiple printed circuit boards sequentially from the fixed frame assembly fixed on the above-mentioned outer wall, it is easy to cause damage to the printed circuit boards, and removing the printed circuit boards many times will cause a gap between the fixed frame assembly and the outer wall of the rotating shaft support part. Loosening or failure of the fastening structure between
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[0018] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, not to limit the invention. It should also be noted that, for the convenience of description, only the parts related to the related invention are shown in the drawings.
[0019] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.
[0020] In this application, the lidar can be a mechanical lidar or a solid-state lidar. The following uses mechanical lidar as an example for illustration.
[0021] LiDAR has limited space inside, and the printed circuit boards on which the lasers are housed are thin. On this basi...
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The invention discloses a transmitting circuit board assembly, a transmitting module, an assembling method of the transmitting module and a laser radar. The transmitting circuit board assembly comprises a printed circuit board and a reinforcing plate. The printed circuit board is provided with a plurality of lasers and a driving circuit for driving the plurality of lasers to emit laser pulses; the reinforcing plate is overlapped with the printed circuit board and is used for keeping the plurality of lasers to be arranged along the first direction. The transmitting module comprises at least one transmitting circuit board assembly and a fixing frame assembly used for fixing the transmitting circuit board assembly; the fixing frame comprises a sheet-shaped supporting body and a rod-shaped first fixing piece, and the sheet-shaped supporting body is connected with the outer wall of a supporting part for supporting a laser radar rotating shaft; the rod-shaped first fixing piece is used for bearing at least one transmitting circuit board assembly; the rod-shaped first fixing piece is detachably connected with the sheet-shaped supporting body. The phenomenon of laser position change caused by printed circuit board deformation at high temperature can be improved.
Description
technical field [0001] The present application relates to the field of laser measurement, in particular to a transmitting circuit board assembly, a transmitting module and its assembly method, and a laser radar. Background technique [0002] The laser radar housing is a closed structure, and the laser, motor and other components inside it will generate a large amount of heat during operation. Due to the closed structure of the lidar, it is difficult to dissipate the heat inside the lidar. [0003] The launch module can be set inside the lidar. The transmitting module may include multiple transmitting circuit boards. Usually multiple launch circuit boards can be stacked on the holder assembly. The fixed frame assembly is fixed on the outer wall of the supporting part supporting the rotating shaft. [0004] When a problem occurs in the transmitting module, it is necessary to sequentially remove the multiple transmitting circuit boards stacked on the fixing frame assembly f...
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Login to View More IPC IPC(8): G01S7/481G01S7/484G01S7/487
CPCG01S7/481G01S7/484G01S7/487Y02A90/10
Inventor 占雨汀李家盛王瑞向少卿
Owner HESAI TECH CO LTD