RU2316914C1 - Radio-electronic block - Google Patents

Abstract

FIELD: radio-electronics, possible use for engineering radio-electronic blocks.

SUBSTANCE: in accordance to the invention, at least two flexible connectors are connected both to one common board and to at least two parallel boards. Radio elements and (or) group of radio elements on adjacent parallel boards are positioned in staggered order at one level of physical space. At least one end part of boards packet has "C"-shaped form with installation of radio-elements in resulting space. Rod and socket connectors are installed between boards, and their tails represent multi-stepped rods. Also, in radio-electronic block between adjacent boards a screen is installed for protection of influence of electromagnetic interferences. Also, the board acts as a screen for protection from influence of electromagnetic interferences.

EFFECT: reduced weight and dimensional characteristics of radio-electronic block due to ensured more dense placement of electronic boards in packet and electronic components on boards, reducing lengths of inter-board connections, and also increasing reliability in operation, ensuring maintainability and possibility of screening of radio-electronic block under effect of electromagnetic interferences.

3 cl, 9 dwg

Description

The invention relates to the field of radio electronics and can be used in the design of electronic blocks that provide a tight placement of printed circuit boards in a package and electronic components on the boards, as well as a reduced length of circuit boards to reduce the overall weight and weight characteristics of the unit, improve reliability, maintainability and availability its shielding when exposed to electromagnetic interference.

Known electronic components (Olga Gureeva. Features of the use of electromechanical connectors for surface mounting, J. "Modern Electronics", 2006, pp. 30-31, Fig. 1-6) using surface-mounted components (SMT components) on the boards and connectors, which significantly increases the density of the layout of the boards, resulting in a miniature electronic unit. However, the disadvantage of this design is the low mechanical strength of the connection of the terminals of the connector with the surface of the printed conductor. SMT connectors during extended operation have an increased likelihood of damage to a thin layer of conductive tracks on the board. This constructive solution has an increased sensitivity of the connector to shock and vibration, which results in a decrease in the reliability of the unit, the contact surfaces of the printed circuit board design do not withstand a large number of wiring, which implies that this unit has limited maintainability. Also in the unit there is no screen to protect against electromagnetic interference.

The closest technical solution, selected as a prototype, is a radio electronic unit (RF Patent No. 2237986, Н05K 1/00, publ. 2004.10.10) containing radioelements and boards mechanically connected to flexible connectors with conductors, the connectors being made in the form of flat tapes with parallel conductors located on both sides of the boards, where the rows of conductors of one tape are offset relative to the rows of conductors of the other tape, the flexible connector bends 180 ° so that the boards with the radio elements are one the other and form a package. The disadvantages of this design are the non-systematic placement of radio elements on the printed circuit board, the large length of the tracks of the inter-circuit connections in the package of boards, which significantly reduces the installation density and reliability of the unit, a decrease in the installation density leads to an increase in overall weight and weight characteristics, access to electronic components during the repair of the unit is difficult. Also in the unit there is no screen to protect against electromagnetic interference.

The technical result of the invention is to reduce the overall weight characteristics of the unit by providing a more dense placement of printed circuit boards in the package and electronic components on the board, reducing the length of the circuit board connections, as well as ensuring the reliability and maintainability of the electronic unit.

The technical result is achieved by the fact that in a radio-electronic unit containing boards with radio elements, electrically connected flexible connectors with conductors made in the form of flat tapes with parallel conductors placed on both sides of the boards, the rows of conductors of one tape being offset relative to the rows of conductors of another tape , and the flexible connector is bent so that the boards with the radio elements are one opposite the other and form a package of boards, at least two flexible connectors are connected as one General board, and with at least two parallel boards, radioelements and (or) a group of radioelements on adjacent parallel boards are staggered at the same level of physical space, at least one end part of the board package has "C" - shaped with the installation of radioelements in the space that has been formed, with the pin and socket connectors installed between the boards, and their shanks are multi-stage pins.

In addition, a shield is installed in the electronic unit between adjacent boards to protect against electromagnetic interference.

In addition, the screen for protection against electromagnetic interference is a board.

The essence of the invention lies in the fact that, in contrast to the prototype, where the arrangement of electronic components is not systematized, in the proposed electronic unit containing circuit boards with radio elements, electrically connected flexible connectors with conductors made in the form of flat tapes with parallel conductors placed on both sides of the boards moreover, the rows of conductors of one tape are offset with respect to the rows of conductors of another tape, and the flexible connector is bent so that the circuit boards with radio elements are about on the other hand, and form a package of boards, at least two flexible connectors are connected with both one common board and at least two parallel boards, the radio elements and (or) a group of radio elements on adjacent parallel boards are staggered on at one level of the physical space, at least one end part of the circuit pack has a "C" -shaped shape with the installation of radioelements in the space formed.

In contrast to the prototype, in which the circuit board connection is carried out only by flexible connectors having a large length of connection paths, in the proposed radio electronic block, the circuit board connection is performed using pin and socket connectors installed between the boards, and the shanks of the connectors are multi-stage pins. This ensures the minimum length of interboard connections and the reliability of the electronic unit as a whole.

In contrast to the prototype, a screen from the influence of electromagnetic interference is installed between the adjacent boards in the radio-electronic unit.

In contrast to the prototype in the electronic unit, the screen for protection against electromagnetic interference is a board.

The proposed drawings show a radio-electronic unit, where Fig. 1 shows a general view of a radio-electronic unit in a perspective view with a local view on an enlarged scale; figure 2 is a longitudinal section of a radio electronic unit; figure 3 is a fragment of a radio electronic unit, where the board of the first, lower, level and the location of microcircuits in three levels are conventionally shown; figure 4 is a fragment of a radio electronic unit, which conventionally shows the board of the first level on the side and the location of the microcircuit in three levels; figure 3 is a fragment of a radio electronic unit, where the boards are conventionally shown in three levels and the location of microcircuits in three levels; Fig.6 is a fragment of a radio electronic unit, where the boards of three levels are conventionally shown on the side and the location of microcircuits in three levels; Fig.7 is a fragment of the electronic unit, where the circuit board connection is conventionally shown; on Fig is a fragment of the design of the printed circuit board in isometry, where the dielectric base of the board conditionally transparent; figure 9 is a fragment of the design of the electronic unit indicating the on-board electrical connections.

1 - electronic block in the form of a color plasma video module;

2 - general board (color indicator panel);

3 - screen for protection against electromagnetic interference;

4 - a package of parallel boards;

5 - boards: 5-1 - board of the first level, 5-2 - board of the second level, 5-3 - board of the third level, 5-4 - board of the fourth level;

6 - board levels;

7 - end part of the package of boards, forming a "C" -shaped shape;

8 - the first level of boards;

9 - connecting device;

10 - logical synchronizing device (USL);

11 - controller;

12 - electrical communications;

13 - flexible connectors (loops);

14 - microcircuits: 14-1 - microcircuits installed at the first level, 14-2 - microcircuits installed at the second level, 14-2-1 - microcircuits installed at the second level of boards from the first level, 14-2-2 - microcircuits installed on the second level of the board from the side of the third level, 14-3 - microcircuits installed on the third level;

15 - checkerboard layout of the microcircuit (group of surface mount elements);

16 - surface mount elements;

17 - group of surface mount elements: 17-1 - group of surface mount elements on the first level of the board, 17-2 - group of surface mount elements on the second level of the board;

18 - side of the board, not adjacent to the display panel;

19 - the second level of boards;

20 - key logical device (UKL), 20-1 - key logical device Y (UKL Y);

21 — arrangement of microcircuits of adjacent boards at one level of physical space;

22 - the distance between the boards;

23 - the height of the microcircuit;

24 - female connector;

25 - pin connector;

26 - interfaced boards;

27 - axis pairing contacts;

28 — planes of parallel boards;

29 - shank of female and male connectors;

30 - two-stage pin form;

31 - metallized conductive hole;

32 - step of the shank of the electrical connector;

33 - planar electrical contact;

34 - pin electrical contact;

35 - electrical contact;

36 - the third level of boards;

37 - groove of the second level;

38 - the fourth level of boards;

39 - voltage shaper;

40 - power board;

41 - radiator;

42 - overall radioelements;

43 - filter;

44 - power module;

45 - "C" -shaped physical space;

46 - screen board for protection against electromagnetic interference;

47 - cut line;

48 - trace of the printed circuit board: 48-1 - trace of the printed circuit board of the first level, 48-2-1 - trace of the printed circuit board of the second level from the side of the first level circuit board.

The electronic unit in the form of a color plasma video module 1 (Fig.1-7, 9) consists of:

- common board (indicator color plasma panel) 2 (Fig.1, 2, 9);

- screen 3 (figure 2, 9) to protect against electromagnetic interference;

- package 4 (figures 1, 2, 5-8, 9) of parallel boards 5 (figures 1-8, 9), where the two end parts of the package 4 (figures 1, 2, 5-8, 9) of parallel boards 5 (Figs. 1-8, 9) have a "C" -shaped shape 7 (Figs. 2, 7, 9).

Package 4 (Figs. 1, 2, 5-8, 9) of parallel boards 5 (Figs. 1-8, 9), mechanically fixed with the screen 3 (Figs. 2, 9), consists of four levels 6 (Fig. 2 -8) boards 5 (Figs. 1-8, 9). In turn, the screen 3 (figure 2, 9) is mechanically connected to the common board (indicator panel) 2 (figure 1, 2, 9). On the boards 5 (Figs. 1-8, 9), microcircuits 14 (Figs. 2-8, 9) and surface mount elements 16 (Figs. 2-7, 9) are placed, combined into groups 17 (Figs. 2, 3, 7, 9), which are placed in a checkerboard pattern 15 (Fig.3, 9).

On the board 5 (Fig.1-8) of the first level 8 (Fig.2-8) are placed:

- connecting device 9 (Fig.3, 5, 7);

- logical synchronizing device 10 (Fig.2, 3, 7);

- controller 11 (figure 3).

The board has electrical connections 12 (Fig. 1, 2, 7, 8, 9) through flexible connectors (loops) 13 (Fig. 1, 2, 9), also female 24 (Fig. 7, 9) and 25 pin connectors:

- four hundred eighty-one connection 12 (Fig. 1, 2, 7, 8) leads from the color indicator panel 2 (Fig. 1, 2) to the connecting device 9 (Fig. 3, 5, 7);

- six hundred forty-four communications 12 (Fig. 1, 2, 7, 8) lead from the display panel 2 (Fig. 1, 2) to the logical synchronizing device 10 (Fig. 2, 3, 7).

The indicator panel 2 (Fig. 1, 2) is electrically connected 12 (Fig. 1, 2, 7, 8) with a synchronizing logic device 10 (Fig. 2, 3, 7) through flexible connectors (cables) 13 (Fig. 1, 2) with ten microcircuits 14-1 (Figs. 3-6, 8), for example, type IND 16337, through trace 48-1 (Fig. 8) of the first level 8 (Figs. 2-8). Microcircuits 14 (figure 2, 5-8) are located on the board 5 (figure 1-8) in a checkerboard 15 (figure 2, 3, 5, 7, 8) order to ensure installation density. Elements 16 (Fig.2-7) of surface mounting on a circuit board 5 (Fig.1-8) of the first level 8 (Fig.2-8) are combined into groups 17-1 (Fig.3-6) and are also placed in a checkerboard 15 (Fig.3) the order relative to the group 17-2 (Fig.2) on the board 5 (Fig.1-8) of the first level 8 (Fig.2-8). All elements 16 are located on the side 18 (Fig.2, 5, 7, 8), not adjacent to the display panel, to ensure maintainability of the board 5 (Fig.1-8).

The immobility of the board 5 relative to the indicator panel 2 (1, 2) increases the reliability of the connections 12 (1, 2, 7, 8).

At the second level 19 (FIGS. 2, 5-8), the key logical device 20 is placed (FIGS. 2, 5). The second level 19 (figure 2, 5-8) consists of two boards 5-2 (figure 5, 6). Each board 5-2 has six hundred and forty-four electrical connections 12 (FIGS. 1, 2, 7, 8) with an indicator panel 2 (FIGS. 1, 2) through flexible connectors (loops) 13.

The indicator 2 with flexible connectors (loops) 13 is connected 12 (Fig. 1, 2, 7, 8) with twenty microcircuits 14-2 (Figs. 3-6), in particular of the IND 16337 type, i.e. ten chips 14-2 are installed on each board 5-2 (Fig. 5, 6) of the second level 19 (Fig. 2, 5-8) through trace 48-2-1 (Fig. 8) of the second level 19 (Fig. 2, 5-8). Microcircuits 14-2 (Figs. 3-6, 8) are located on two sides of the board in a checkerboard 15 (Figs. 2, 3, 5, 7, 8) order, moreover, microcircuits 14-2-1 (Figs. 4, 6, 8) the second level 19 (Fig.2, 5-8) relative to the first level 8 (Fig.2-8) are located at the same level of the physical space 21 (Fig.2, 7) with microcircuits 14-1 (Fig.3-6 , 8) the first level, i.e. the distance 22 (Fig. 2, 8) between the boards 5 (Figs. 1-7) has a height of 23 (Figs. 2, 6, 7) corresponding to the height of the microcircuits 14-1 (Figs. 3-6, 8) or microcircuits 14 -2 (Fig.3-6), for example, IND 16337. Moreover, the microcircuits 14-2-2 (Fig.4, 6) are also installed in a checkerboard pattern 15 (Fig.4).

Board 5-2 (figure 5, 6), if necessary, repair, recline by 90 °.

Electrical connection 12 (Fig.1, 2, 7, 8) of two boards 5-2 (Fig.5, 6) of the second level 19 (Fig.2, 5-8) with the circuit board 5-1 (Fig.8) of the first level 8 (Fig.2-8) is carried out through the female 24 (Fig.7, 9) and pin 25 connectors directly located on the mating 26 (Fig.7) boards 5 (Fig.1-8, 9), where the axis 27 ( Fig.7) pairing contacts perpendicular to the planes 28 of parallel boards 5 (Fig.1-7). The shanks 29 (Fig. 7, 9) of the female 24 and pin 25 connectors have a two-stage pin shape 30, which allows you to install the connectors 24, 25 in the corresponding sized metallized conductive holes 31 (Fig. 7) of the board 5 (Figs. 1-7) so as to adjust the board to wire distance 22 (FIGS. 2, 6-8) over the height 23 (FIGS. 2, 6, 7) of the surface mount elements 16 (FIGS. 2-7) or microcircuits 14 (FIGS. 2, 5- 8). Due to the step 32 (Fig.7), the shank 29 has both planar 33 and pin 34 electrical contact 35, which increases the reliability of the contact. After mounting the connectors, the remaining steps of the shanks are removed along the cut line 47 (Fig.7).

At the third level 36 (Figs. 2, 5-7), the key logical device Y 20-1 (Fig. 5) is placed in the form of a single board 5-3, which is connected 12 through flexible connectors (loops) 13 (Figs. 1, 2 , 7, 8) with twelve microcircuits 14-3 (Figs. 3-6), in particular, type IND 16305.

Chips 14-3 are located on two sides in a checkerboard 15 (figure 2, 3, 5, 7, 8) order, while the chip 14-3 (figure 3-6) of the third level 36 (figure 2, 5-7 ) relative to the microcircuits 14-2 (Figs. 3-6) of the second level 19 (Figs. 2, 5-8) are located at the same level of the physical space 21 (Figs. 2, 6, 7), i.e. the distance 22 (FIG. 6) between the boards 5 has a height 23 of the microcircuit 14-3 (FIGS. 3-6), such as, for example, IND 16337. The boards 5-3 (FIG. 6), if necessary, are tilted back up to 90 ° . The electrical connection 12 (Fig. 7) of the boards of the third level 36 with the board 5 of the first level 8 is carried out similarly to the connections 12 of the second level 19 through the socket 24 and pin 25 connector directly located on the mating boards 5, while the connectors 24, 25 pass through the groove 37 second level 19.

At the fourth level 38 (Fig. 2, 7) on the board 5-4 (Fig. 2), a voltage driver 39 (Fig. 2, 7) and a power board 40 (Fig. 2) are placed, which go to the radiator 41 (Fig. 1) , 2). On the boards 5 (Figs. 1-8) of this level 38 (Figs. 2, 7), the overall radioelements 42 (Figs. 1, 2, 7, 9) are placed, in particular the filter 43 (Figs. 1, 2), for example, MPM2 -V5DMU BKYUS.468240.003TU; power modules 44, for example, MDM10-1E15MUP BKYUS.430609.001TU, which are located at the end 6 (figure 2-8) of package 4 (figure 1, 2, 5-8) of parallel boards 5 (figure 1-8), having "C" -shaped space 45 (Fig.2, 9). Board 5 (Fig.1-8), if necessary, dismantle, recline 180 °.

In addition, in the interboard space there is a shield board 46 (Figs. 7, 9) for protection against electromagnetic interference.

The above design solutions allow to minimize the overall weight characteristics of the electronic unit, increase its reliability and maintainability, and also allow the unit to shield when exposed to electromagnetic interference.

Thus, it follows from the foregoing that the claimed invention is industrially applicable and solves the technical problem.

The inventive design can find application in the design of small-sized electronic blocks, in particular a video module.

Claims (3)

1. An electronic unit containing circuit boards with radio elements, electrically connected flexible connectors with conductors, made in the form of flat tapes with parallel conductors placed on both sides of the boards, the rows of conductors of one tape being offset relative to the rows of conductors of another tape, and the flexible connector is bent so that the boards with the radio elements are opposite one another and form a package of boards, characterized in that at least two flexible connectors are connected both with one common board and at least with two parallel boards, the radioelements and (or) a group of radioelements on adjacent parallel boards are staggered at the same level of physical space, at least one end part of the circuit pack is C-shaped with the installation of radioelements in the space formed, moreover, the pin and socket connectors are installed between the boards, and their shanks are multi-stage pins. 2. The radio-electronic unit according to claim 1, characterized in that in the radio-electronic unit between adjacent boards a screen is installed to protect against electromagnetic interference. 3. The electronic unit according to claim 2, characterized in that the screen for protection against electromagnetic interference is a board.

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