RU119973U1 - FUNCTIONAL MODULE FOR PLACING MULTIPLE HETEROGENEOUS RADIO ELECTRONIC DEVICES IN ONE STANDARD FRAME NEST - Google Patents

Abstract

A functional module for placing several dissimilar radio electronic devices in one slot of a standard frame, containing one or two multi-pin connectors, a front panel with handles, two guides for installation in one slot of a standard frame, characterized in that one slot contains three printed circuit boards with a set of electronic components, two boards are placed inside two external frame-type shields, an insert shield is clamped between the boards, which is two frames with a common bottom, one of the shields contains guide projections that fit into the guide slots of the slot of the standard frame and the projections for attaching the third printed circuit board , the screen-insert is equal in size to the boards and is placed inside the external screens, and the line of joint of the external screens runs in the middle of the thickness of the bottom of the screen-insert, fasteners of covers and boards with screens are independent of each other, has different support bosses, and the third board is fixed on the protrusions one of the two outer frame screens type so that its edges fit into the guide grooves of the socket of the standard frame.

Description

The utility model relates to electronics and can be used in communication, automation and control devices.

Well-known analogues of the design of functional modules for placing one electronic device located on one printed circuit board in one socket of the standard frame of the IEC 821 trunk ([1] - Components, www.intermas-el.com, (Fig. 7)) are printed circuit boards various formats with electrical and radio elements and one or two connectors and an attached front panel with handles. Their disadvantage is the irrational use of the cell volume of one socket of a standard frame.

The well-known functional module, taken as a prototype, is a printed circuit board with electrical and radio elements and one or two connectors and an attached front panel with handles ([2] - Main catalog www.schroff.biz, (Fig.6)). The disadvantage of the prototype is the poor use of cell space when using low-profile radio elements on a printed circuit board, the difficulties of simultaneously placing heterogeneous devices (for example, microwave, analog and digital), which do not allow to achieve the ultimate quality performance of heterogeneous devices.

The purpose of creating a utility model is to increase the number of devices and radio elements placed in the same cell without losing the quality of work of heterogeneous devices with the maximum possible use of cell space.

To achieve this goal, a functional module is proposed for placing several heterogeneous electronic devices in one socket of a standard frame, containing one or two multi-pin connectors, a front panel with handles, two guides for installation in one socket of a standard frame.

However, in order to increase the number of devices and radio elements placed in the same cell without losing the quality of work of heterogeneous devices with the maximum possible use of the cell space, it is proposed to place three printed circuit boards shielded from each other by a special design of a metal collapsible case in the same cell.

According to a utility model, three printed circuit boards with a set of electronic components are placed in one socket of a standard chassis, two boards are placed inside two external frame-type screens, an insert screen is pressed between the boards, which consists of two frames having a common bottom, one of the screens contains guide tabs , which are included in the guide grooves of the standard frame socket and the protrusions for mounting the third printed circuit board, the insert screen is equal in size to the circuit boards and placed inside the external screens, and the interface line of the external screens passes in the middle of the bottom thickness of the insertion screen, the fasteners of the covers and boards with the screens are independent of each other, have different support bosses, the third board, containing one or two multi-pin connectors, is mounted on the protrusions of one of the two external screens of the frame type so that it the edges fit into the guide grooves of the socket of the standard frame.

The combination of distinctive features and properties of the proposed functional module from the literature is not known, therefore, the utility model meets the criteria of novelty.

In Fig.1 shows a General view of the proposed functional module, Fig.2 shows a front view of the proposed functional module with the front panel removed, Fig.3 shows a method of connecting the individual parts of the proposed functional module in a single design, Fig.4 is a side view of the proposed functional module, figure 5 is a photograph of the manufactured sample of the proposed functional module, figure 6 is a view of the prototype of the proposed functional module, figure 7 - types of analogues of the proposed functional module.

Figure 6 shows a diagram of a prototype of the proposed utility model. A functional module designed to accommodate one electronic device in one socket of a standard chassis [2] contains one printed circuit board with electrical and radio elements, one or two multi-pin connectors located on this board and a front panel with handles attached to the board.

Figure 1 shows a General view of the proposed functional module (front and side views)

In the functional module (Fig. 1), the A3-1 board with connectors and non-critical electrical and radio elements to shielding is attached to the protrusions of the shielding frames - 2. The A3-1 board is fixed to the protrusions of one of the two external screens of the frame type so that its edges 3 are included in the guide grooves of the nests of the standard frame (Fig. 1 and Fig. 2). The other two shielded boards A1-4 and A2-5 (FIG. 2 and FIG. 3) are placed inside the housing formed by two conductive shielding frames 2, the lower screen is 6, the upper screen is 7, and three conductive screen boards (FIG. .2): bottom cover - 8, insertion screen - 9 between the boards, top cover 10. Boards A1-4 and A2-5, bottom screen - 6, top screen - 7 and insertion screen - 9 between the boards are interconnected screws - 11 into a single design "layer cake" (figure 3). On one of the screens, ribs - 3 are made so that they fit into the guide grooves of the nests of the standard frame. Together with the edges of the A3-1 board, the ribs - 3 of the screen form the guide projections of the module, which enter the guide grooves of the socket of the standard frame when installing the module in the socket of the standard frame. The fasteners of the covers and boards with screens are independent of each other, have different support bosses, which makes it possible to carry out control, tuning and adjustment operations without completely disassembling the module, but removing only the necessary cover.

Figure 2 shows a front view of the proposed functional module with the front panel removed. A method of connecting boards, screens and covers into a single design is shown. The bottom screen is 6, the top screen is 7, the insert screen is 9 between the boards, the A1-4 board and the A2-5 board are interconnected by screws 11. The bottom covers - 8 and the top - 10 are attached with separate screws to the bottom screen - 6 and the top screen - 7, respectively, which makes it possible to carry out control, tuning and adjustment operations without completely disassembling the module, but removing only the desired cover.

Figure 3 in an enlarged view shows a method of connecting the individual parts of the proposed functional module with screws in a single design "layer cake".

Figure 4 shows a layered side view of the proposed functional module.

Figure 5 is a General view (photograph) of the manufactured sample of the proposed functional module.

Figure 6 shows a prototype of the proposed functional module - one board with connectors for one socket, low utilization of the volume of a standard cell when using low-profile elements.

Figure 7 shows the types of analogues of the proposed functional module - standard frames of various types with boards in the slots.

In Federal State Unitary Enterprise "RNIIRS" 61 pieces were developed and manufactured. functional modules for placing three electronic devices in one socket of the standard frame of the IEC 821 trunk in accordance with the proposed utility model.

As a result of the development and manufacture of this functional module, the following technical effect was obtained in comparison with the prototype: three dissimilar electronic devices are located in one socket of the standard frame, while the prototype has one device of the same type. With this increase in the number of devices and radio elements placed in one cell, the cell volume of one socket of a standard frame is rationally used with the possibility of simultaneous use of dissimilar nodes on separate printed circuit boards. The gain in volume was 2.5-3 times.

Claims (1)

A functional module for placing several heterogeneous electronic devices in one socket of a standard chassis, containing one or two multi-pin connectors, a front panel with handles, two guides for installation in one socket of a standard chassis, characterized in that three printed circuit boards with a set of electronic are placed in one slot components, two cards are placed inside two external screens of a frame type, an insert screen is clamped between the cards, which consists of two frames having a common bottom, one of the screens contains t guide projections, which are included in the guide grooves of the standard frame socket and protrusions for mounting the third printed circuit board, the insert screen is equal in size to the boards and placed inside the outer screens, and the interface line of the outer screens runs in the middle of the bottom thickness of the insert screen, the fasteners of the covers and boards with the screens are independent of each other, it has different support bosses, and the third board is fixed on the protrusions of one of the two external screens of the frame type so that its edges enter the guide grooves of the socket of the standard frame.