RU191173U1 - Electronic block - Google Patents

Abstract

The utility model relates to the field of electronics and can be used in the design and manufacture of electronic components. The technical result of the proposed utility model is to ensure the health of the electronic unit by fixing the radio elements and ensuring their thermal regime. The technical problem solved by the proposed utility model is the creation of a radio electronic unit that provides a given technical result. The electronic block contains a housing consisting of panels made of electrical insulation material (3) and (7) interconnected, support plates (5) and (8) with holes (15) and separation racks (6). Inside the housing, radioelements (14) are installed between the support posts (6) with a gap (13) in the holes of the support plates (5) and (8). On the outer sides of the support plates (5), (8), pouring baths (4) and (9) are installed, in the bottom of which holes (17) are made. Filling baths (4) and (9) are installed with an interference fit on the protruding parts of the radio elements (14) and are filled with a compound (12). 4 s.p. f-ly, 4 ill.

Description

The utility model relates to the field of electronics and can be used in the design and manufacture of electronic components.

The well-known "Power supply of electronic equipment" [RU 15443, published 10.10.2000, IPC H05K 5/04]. The power supply of electronic equipment includes a housing and at least one voltage stabilizer. In the case, made of electrically conductive material, there is a cavity closed with a flat cover, inside which at least one board is located, on which a part of the electronic components of the voltage regulator is located. Another part of the electronic components of the voltage stabilizer is placed in the modules flooded by the compound, which are in thermal contact with the surface of the cavity made in the housing, on the surface of which protruding ribs are made, while the electronic components of the voltage regulator located in the modules filled in by the compound are electrically connected to the electronic components of the stabilizer voltage located on the board.

The implementation of the housing from an electrically conductive material requires the full filling of a part of the electronic components with a compound, which impairs their thermal regime.

The closest in technical essence is the "Radio-electronic unit" [RU 117767, published 06/27/2012, IPC Н05K 1/02], comprising a housing of interconnected side panels, upper and lower covers, as well as located in the inner space of the electronic block of the board, bearing electronic parts. The boards are installed and fixed in the slots in the side panels and the upper and lower covers made as separate elements of a rectangular shape made of electrical insulating material, the inside of the electronic block is filled with fully or partially elastic adhesive insulating compound through the holes in the upper cover and side panels of the case.

The design of the prototype involves the full or partial filling by the compound of the block body and does not allow to fill in the individual parts of the radio elements, for example their outer surface outside the block body, to provide air cooling of the parts of the radio elements installed in the block body, which leads to their failure.

The technical result of the proposed utility model is to ensure the health of the electronic unit by fixing the radio elements and ensuring their thermal regime.

The technical problem solved by the proposed utility model is the creation of a radio-electronic unit providing a given technical result.

The essence of the proposed electronic unit is that it contains a housing that includes two panels of insulating material, and installed in the housing of the radioelements.

New in the proposed utility model is that in addition two support plates with holes, separation racks made of electrical insulating material, and two casting baths of elastic material, in the bottom of which holes are made, are additionally introduced. The housing is formed by two panels and two support plates interconnected and separation racks installed between the support plates, in addition, the radio elements are installed inside the housing into the holes of the support plates with a gap relative to the separation racks, and the filling baths are installed on the outer sides of the support plates with an interference fit protruding parts of radioelements and are filled with electrical insulating compound. As an insulating material, fiberglass is used. As an insulating compound, a compound of the EKN brand is used. The connection of the side panels, support plates and separation racks is a groove in the spike. As the elastic material of the filling baths, rubber of the brand HO-68-1 is used.

In FIG. 1 shows a General view of the electronic unit.

In FIG. 2 shows a front view of the electronic unit.

In FIG. 3 shows a General view of the housing of the electronic unit.

In FIG. 4 shows a general view of the casting bath.

The electronic unit contains a housing consisting of interconnected panels (3), (7), support plates (5), (8) with holes (15) and separation racks (6). In the panels (3), (7), grooves (1) are made in which the spikes (2) of the support plates (5), (8) are installed. Inside the housing, the holes of the support plates (5), (8) are equipped with radio elements (14) between the dividing racks (6) with a gap (13). On the outer sides of the support plates (5), (8), box-shaped filling bathtubs (4), (9) are installed, in the bottom of which holes (17) are made. In this case, the filling baths (4), (9) are installed with an interference fit on the protruding parts of the radioelements (14) and are filled with a compound (12), for example, an elastic electro-insulating adhesive-capable compound of the EKN brand.

The assembly of the electronic unit is as follows.

At the first stage, the housing of the electronic unit is assembled. Between the supporting plates (5), (8) a set of dividing racks (6) is installed, designed to isolate the radio elements (14). Then, panels (3), (7) are attached to the above assembly by installing the spikes (2) in the grooves (1). These housing elements are made of electrical insulating material, for example, fiberglass and are fixed with glue, for example VK-9.

Next, radioelements (14) are installed in the housing in the holes (15), of the support plates (5), (8) between the separation posts (6) with a gap (13). The linear dimensions of the holes (15) are larger than the sizes of the radioelements (14) with a margin of technological variation in their sizes, for example, 1.5-2 mm.

Next, a filling bath (4) is installed on the base plate (5), so that protruding parts of the radio elements (14) enter the holes (17). When pulling the bath (4) onto the radio element (14), flanges (16) (Fig. 2) are formed around the holes (17), overlapping the hole (15) in the plate (5). Thus, the internal volume of the bath (4) and the protruding parts of the radioelements (14) are insulated from the internal volume of the housing and the radioelements (14) are fixed with compensation for the variation in their linear dimensions. The filling bath (4) is attached to the base plate (5) with glue, for example PU-2.

Similarly, the other casting bath (9) is attached to the support plate (8). Filling baths (4), (9) are made, for example, of rubber grade HO-68-1.

In the internal cavities of the filling baths (4), (9) there is a part of the housing of the radioelements (14) with leads, for example, 1/10 of the length of the housing of the radioelements (14). As radioelements (14), for example, large capacitors can be installed for combining into one capacitance. To do this, connect the findings of the radio elements (14) and output the contacts (11) to the outside of the housing of the electronic unit through the insulating bushings (10) installed on the front side of the panel (3).

Then, the compound (12), for example, EKN grade, is poured into the bath (4) by free loading, and it is allowed to dry without using additional technological equipment. After that, pouring the compound (12) into the bath (9) is repeated. Compound (12) provides additional fixation of radioelements (14). In the process of pouring, the compound (12) completely remains in the filling bath (4), (9), since the tight clamp of the flanges (16) of the holes (17) of the rubber baths (4), (9) prevents the compound (12) from flowing inside the housing of the electronic unit and contact with the outer surfaces of the radioelements (14), which eliminates the violation of the thermal regime of the radioelements (14) during their air cooling. In this case, air cooling is provided by the influx of air to the radio elements (14) into the gaps (13) relative to the separation racks (6).

This ensures the fixation of the radioelements in the electronic unit and their thermal regime, thereby ensuring the operability of the electronic unit.

Claims (5)

1. A radio electronic unit comprising a housing comprising two panels of electrical insulation material and radioelements installed in the housing, characterized in that two additional support plates with holes, separation racks made of electrical insulation material, and two casting bathtubs of elastic material are additionally introduced. , in the bottom of which holes are made, and the housing is formed by two panels and two support plates interconnected, and dividing racks installed between the support Lastin furthermore radioelements mounted within the housing in the holes of the support plates with a gap relative to the dividing struts and potting trays are mounted on the outer sides of the support plates with an interference fit on the projecting portions and filled with an electrically radioactive compound. 2. The radio-electronic unit according to claim 1, characterized in that fiberglass is used as the insulating material. 3. The radio-electronic unit according to claim 1, characterized in that an EKN compound is used as an electrical insulating compound. 4. The electronic unit according to claim 1, characterized in that the connection of the side panels, support plates and dividing racks is a groove in the spike. 5. The radio-electronic unit according to claim 1, characterized in that the rubber of the grade HO-68-1 is used as the elastic material of the casting baths.

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