Separated body machine structure for onboard navigation

Abstract

The invention provides a separated body machine structure for onboard navigation. The separated body machine structure includes a rear cover, a PCBA module, a display module, and a front cover. The left and right side walls of the rear cover are separately provided with at least 2 supporting pillars which are intended for supporting the display module. The PCBA module is provided with an immersion gold surface which is intended for guiding heat and shielding electromagnetic interference, and is in tight contact with the rear cover so as to form an accommodating space for accommodating components and parts on the PCBA module. The PCBA module and the display module are connected through a floating connector. The place where the display module and the front cover are adhered is provided with an elastic foam. The front cover is intended for covering the left and right side walls of the supporting pillars of the rear cover and is provided with a ventilation hole. The ventilation hole and a gap between the PCBA module and the display module constitute a ventilation channel. The front and rear side walls of the front cover are elastic walls each of which is provided with a tilted buckle which is intended for supplementing elastic tolerance to the PCBA module. According to the invention, the separated structure has no screws and no shielding covers, and is characterized by less mounting steps, simple assembling, low production cost and good stability.

Description

technical field [0001] The invention relates to the technical field of vehicle navigation, in particular to a split machine structure of vehicle navigation. Background technique [0002] In order to meet the user's requirements for passenger space, light weight of the vehicle, and functional modularization, as well as the requirements for the performance and stability of the on-board equipment, automobile manufacturers are continuously reducing the installation space of the on-board navigation, and try to make the same functional modules The in-vehicle equipment is common to different models. Existing car navigation modular split machine is divided into: three-split machine and two-split machine. Such as figure 1 As shown, it is a schematic diagram of the structure of the three-part machine: including the host 11, the display module 12, the control module 13, and the connecting wire harness 14; figure 2 Shown is a schematic diagram of the structure of the two-split machi...

AI Technical Summary

Problems solved by technology

from Figure 1 to Figure 4 It can be seen that the structure of the existing three-part machine and two-part machine has the following defects: a: There are many parts and complex structures, resulting in high mold costs and cumbersome assembly, it is difficult to realize automatic assembly of products, and manual assembly is easy The problem of insufficient assembly and large cumulative tolerances during assembly of parts occurs; b: the installation space is large and the weight is heavy, which does not meet the user's requirements for passenger space and light weight of the car; c: there are many connecting wire harnesses, which are prone to poor contact, contact The problems of increased impedance, signal attenuation, and mutual interference do not meet the user's requirements for the performance and stability of vehicle equipment

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