The main body assembly beneath the car dashboard functions as follows
The main body assembly beneath the car dashboard (often referred to as the main dashboard body or the dashboard lower body) is an important component of the car dashboard system, covering aspects such as structural support, functional integration, safety protection, and human-machine interaction. According to authoritative public information, its main functions are as follows:
Installation and support of various components: As the framework of the dashboard system, it is used to fix key components such as the combined instrument panel, air conditioning outlets, glove box, central control panel, safety airbags, wiring harness brackets, etc.
Ensuring passenger safety: In collision accidents, the lower body of the dashboard (especially the version with airbags) needs to ensure that the airbags (such as PAB passenger airbags, KAB knee airbags) can be inflated normally and reduce secondary injuries to the driver through energy absorption design .
Improving comfort and quality: The soft lower body of the dashboard adopts a foam layer + surface structure, with a soft touch and good energy absorption; the hard version focuses on cost control and durability, and is mostly used in mid- and low-end models .
Integrating human-machine operation functions: Integrating air conditioning control panels, outlets, storage spaces, decorative strips, etc., to facilitate driver operation and enhance the aesthetics of the cockpit .
Assisting noise reduction and air flow guidance: Some designs include blowing air ducts and deicing ducts, which help regulate the interior airflow and reduce noise through sound insulation materials .
Note: "Dashboard lower body assembly" in some contexts may refer to the secondary dashboard assembly (i.e., the central channel area), but based on the question and the mainstream industry terminology, this is more likely to refer to the lower part of the main dashboard body, which is the core structure located in front of the driver's knees and connecting the steering column and the bottom of the central console .
This expression "dashboard lower body assembly" has no standard definition in public information, but based on industry common terms and authoritative materials, it can be understood as the main structural part of the dashboard assembly, which is the core bearing and integrated structure installed in the front of the cockpit, in the driver's and passenger's areas .
According to Baidu Encyclopedia and authoritative definitions in the field of automotive engineering, the "dashboard assembly" usually includes the following main components:
Main dashboard assembly: Located in front of the driver, integrating combined instrument panels, safety airbags, central console base, etc.;
Secondary dashboard assembly: Located in the central channel and on the passenger side, integrating air conditioning outlets, control panels, storage compartments, etc.;
Dashboard tube frame (beam) assembly: Providing structural support, connecting the left and right A-pillars, and partially integrating safety airbags and wiring harness channels.
Specific to the "lower body" part, if it refers to the main body of the dashboard structure's lower part, it usually includes:
Dashboard body frame (hard plastic, semi-hard plastic or soft material);
Dashboard brackets and module brackets;
Air conditioning ducts and outlet assemblies;
Glove box assembly;
Some wiring and electrical interface pre-installed components;
Airbag installation structure (such as PAB passenger airbag or KAB knee airbag);
New integrated components such as ambient lighting, uniform light components, transparent panels, etc. (as shown in the latest patent of Changan Automobile) .
Note: "Lower body" is not a standard term. Different manufacturers may have different internal naming conventions. If referring to the lower structural components of the dashboard body, they are mainly supporting frames, ducts, storage spaces, etc., non-decorative load-bearing structures.
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