SU1522438A1 - Device for checking connections of printed-circuit boards - Google Patents

Abstract

The invention relates to radio engineering and can be used in control devices for connecting multilayer printed circuit boards (PP) to the measuring unit. The device for monitoring connections PP, controlled points which are located in nodes of the grid (CS) at a distance, multiple odd number of steps KS, contains the control and measuring unit and contact block containing the base with rows and rows of contacts located at nodes CS, identical KS controlled by the PP, the contacts are electrically connected by common tires through one contact with the displacement of the connection on the step in the adjacent row, and the remaining contacts are line by line electrically interconnected by common buses. In one contact, compounds 9-10, 11-12 are monitored. The device is reliable in operation. 3 il.

Description

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The invention relates to radio engineering and can be used in control devices for connecting multi-layer printed circuit boards to a measuring unit.

The purpose of the invention is to increase the reliability and simplify the device's contraction when monitoring boards, the controlled points of which are located in the nodes of the coordinate grid at a distance multiple to an odd number of steps of the coordinate grid.

Figure 1 shows the proposed device, the cut; FIG. 2 shows interconnections in the contact field of the device; on (3, 3 - connections of the controlled board together with the contact field of the device.

The device consists of a housing 1, a base 2 with rows and columns of contacts 3 located in nodes of a coordinate grid identical to the coordinate grid of the controlled plane.

Claims (1)

Claims of the Invention Device, for controlling the connection of printed circuit boards, the controlled points of which are located in the grid nodes at a distance equal to an even number of coordinated steps You are 4 and connected with wires of the 5th grid, containing a monitoring coitrol measuring unit (not shown), the Controlled Board 4 is installed in the module 6, in which the board's movement mechanism 7 is mounted to align the board's position relative to the contacts. The cover 6 is matched to the clamp 8 mechanism. Monitored boards have connections, monitored KOTOptiix points are located in the grid nodes at a distance from one another, a multiple of an odd number of steps. In FIG. 3, these compounds are labeled 30. 35 a measuring unit and a contact block consisting of a body, bases with dy and contact lines located in the grid nodes identical to the grid of the roll card, and connected to the switch of the measuring unit, and the clamping mechanism, characterized in that the target reliability and simplicity of the device design; contacts are electrically connected across the tires through one contact with the connection shifted other contacts are connected by one contact. The other contact of each of these compounds is connected by a common bus with other contacts of the line connected via one contact. Contacts in each row are interconnected with an offset by one step relative to the adjacent row. The device works as follows. at a time, the Controlled Board-4 is installed in the clamps of the moving mechanism 7 and pressed by means of the pressing mechanism 8 to the contacts 3. The connections 9-10, 11-12 (FIG. 3) are monitored for one contact. Claims 4 of the Invention device, for controlling connections of printed circuit boards, the controlled points of which are located in the grid nodes at a distance multiple to an odd number of grid steps, containing control five a measuring unit and a contact unit consisting of a housing, a base with rows and rows of contacts located in the nodes of the coordinate grid, identical to the coordinate grid of the monitored board, and connected to the switch of the measuring unit, and a clamping mechanism, characterized in that , in order to increase reliability and simplify the design of the device, the contacts of the bottom are electrically connected by common buses through one contact with the connection offset by one step to the next positions 9–10, 11–12, One of it is SERIES, and the remaining contacts of the contacts corresponding to each of them are electrically connected between the connections, connected by a common bus with themselves by common buses.