The subsystems of radio-electronic devices allocated by the design-technological features

If we divide the RES into subsystems based on the design and technology features and taking into account physical processes, then the following subsystems can be identified:

a) Element base.

b) Electrical plug connections; switches, switches.

c) Electrical conductors or permanent, integral and non-separable electrical connections

d) Remedies.

e) Bearing structures. .

e ) Mechanical elements.

Radio electronic device:
electronic means representing
a combination of functionally and
structurally complete assembly units and
used to solve a technical problem in
according to its purpose.
The electronic device implements the functions
transmission, reception and conversion of information.
9. The hierarchy of RES
Radio electronic functional unit:
electronic means representing
functional and constructive
complete assembly unit performing
radio engineering and / or electronic
functions (ju) and not having independent
application.
10. The hierarchy of RES
To the lowest hierarchical level
can include:
• electronic components - resistors,
transistors, capacitors, etc.
• switching products - connectors,
switches, buttons, etc .;
• display elements, etc.
11. BEARING STRUCTURE
• The bearing structure of the electronic
funds (NK RES) - structural element
or a set of structural elements
electronic means
designed to accommodate composite
parts and ensuring product stability in
overall to various influences in given
operating conditions
12. BNK
• Typical supporting structures in which
structural elements are unified and
the dimensions of each structural level,
are called
basic.
• The basic bearing design (BNK) -
bearing structure having
standardized dimensions, constructive
the solution of which is mandatory for
electronic design
various functional purpose.
13. BNK
14. BNK-1
The basic supporting structure of the first
level (BNK 1) - base carrier
electronic equipment design,
intended for placement
electronic modules of a zero cycle,
electronic products and
electrical products
15. BNK-2
The basic supporting structure of the second
level (BNK 2) - basic carrier
electronic equipment design,
intended for placement
electronic means made
based on basic load-bearing structure
first level
16. BNK-3
The basic supporting structure of the third
level (BNK 3) - base carrier
electronic equipment design,
intended for placement
electronic means made
based on the supporting structure of the second and
(or) first level
17. RES
Components of electronic systems,
not placed in a single carrier
designs.
The simplest element of BNK is
detail.
18. Types of BNK
• BNK can be frame and frameless
• BNK framework - component of the base carrier
rigid construction
a system of fixed parts
shaped rods, plates with holes,
bends, grooves, designed for installation
and fastenings of components in it or on it
electronic means.
• The casing is an integral part of the BNK,
designed for fencing and protection
electronic means from external
impacts of personnel from contact with
internal parts of the RES and to give the BNK RES
completed form
19. Constructive BNK-1
• First level BNCs can be constructively
made in the form of a panel, circuit board, chassis, etc.
• Panel - designed to be placed on it
governing bodies, switching and indication.
• Board - dielectric plate for installation
electrical and radio elements.
• Printed circuit board (English printed circuit board, PCB, or
printed wiring board, PWB) - dielectric plate,
on the surface and / or in the volume of which are formed
conductive circuit electronic circuit.
• Chassis - sheet metal panel (eg aluminum)
or insulating material (e.g. getinax),
on which hardware parts are mounted.
20. Constructive BNK-1: CHASSIS
a - chassis Zyxel IES-1000M EE;
b - HP BLc7000 chassis;
in - chassis made flexible
21. Constructive BNK-1: PANEL
a - input-output panel;
b - removable front panel
CD playback devices and
AM / FM tuner
c - the panel made by molding
22. Constructive BNK-1: BOARD
a - motherboard;
b - printed circuit board
23. Constructive BNK-2
Second-level BNK constructively can be
made in the form of a housing, frame, etc.
Housing block RES - prefabricated or monolithic base
supporting structure of the second level of electronic
funds intended for placement of RES cells,
radio products and parts.
RES block building block - basic load-bearing structure
second level, designed to accommodate cells
RES and plug-in blocks RES
The cut-in block frame RES - the basic carrier
design of the second level of electronic
funds intended for placement of cells of RES and
installed in basic load-bearing structures
third level.
24. Constructive BNK-2: CASE
a - instrument housings PROFITRONIC 19;
b, c - block housing RES;
25. Constructive BNK-2: KARKAS
cutting block frame
26. Constructive BNK-3
Third level BNCs can be structurally designed as
enclosures, sections, shelving, etc.
Cabinet Enclosure - Base Tier 3 Base
closed type, equipped with removable doors and (or) side
casing.
RES section - basic carrier to