JPS62112392A - Feeding printed wiring board with connecting terminal - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a power supply system for an EDGE card for supplying power to a component mounting area of a printed circuit board (hereinafter referred to as an EDGE card) having a tangential terminal attached to a board frame. Regarding.

[Prior Art] Conventionally, as a power supply method for supplying power to the component mounting area of an Edge card mounted on a board frame, for example, in the case of inserting an Edge card into a board frame and attaching it by CSA, there is a method called Fuji Card. has a main edge on the insertion side and a sub-edge on the opposite side f=rL.On the other hand, a connector is provided at a portion corresponding to the main edge of the board frame into which the edge card is inserted, and this connector is connected to the main edge.

[Problems to be Solved by the Invention] However, with this conventional power supply method for Edge cards, problems arise when the Edge card is large, has high component mounting density, has many wiring patterns, and is long and thin. In particular, there is a problem in that the distance between the components mounted on the sub-edge side and the connector becomes long, and the power supply impedance increases, resulting in a decrease in the power supply voltage and noise margin.

[Objective of the Invention] The object of the present invention is to solve the above-mentioned conventional problems, and to solve the problem of the power supply impedance even when the edge card is large, the component mounting density is high, and the wiring pattern is thin and long. It is an object of the present invention to provide a method for supplying power to a power supply voltage gradient without causing a drop in power supply voltage or noise margin.

[L stage for solving the problem] The means of the present invention for solving such problems is to form a power supply pattern around the component mounting area of the edge card, and to form a power supply pattern on the board frame on which this edge card is mounted. This is a power supply method to the edge card in which a power supply 1-■ terminal is arranged and the power supply terminal is connected to the power supply pattern to supply power to the component mounting area.

[Operation] The power supply method for the Edge card configured as described above is such that power is supplied from the power supply terminal arranged on the board frame to the power supply pattern formed around the component mounting area of the Edge card,
Power is supplied to the component mounting area from this power supply pattern. As a result, each component mounted on the EDGE card receives power from the nearest power supply pattern, and even if the EDGE card is large, has high component mounting density, and has many thin and long wiring patterns, the power supply impedance will be high. Therefore, there is no reduction in the power supply voltage or noise level.

[Embodiment] The power supply system for the edge card according to the present invention will be described in detail with reference to the drawings.

In addition, in the figures, the same reference numerals indicate the same parts.

FIGS. 1(a) and 1(b) show a first embodiment of the power supply system for the edge card according to the present invention.

The edge card 1 shown in FIGS. 1(a) and 1(b) is inserted and attached to a board frame 2 (see FIG. 2(a)). and subedge 4.

This edge card 1 has a component mounting area 5a + 5b in the negative part and the upper part, and one area around the component mounting areas 5a and 5b is the upper part of the component mounting area 5a, and the upper part. At the lower part of the component mounting area 5b, and between the upper component mounting area 5a and the lower component mounting area 5b, there are band-shaped power supply patterns 8a, 8b along the longitudinal direction of the edge card 1.
, Be are formed.

On the other hand, on the board frame 2 shown in FIG. 2(a), a connector 7 to which the main card 1 and the main card 3 are connected is arranged. And, between the edge card 1 insertion side of this board frame 2 and the connector 7 placement side, there is a
A support 10 is installed at a position on the insertion side from the center of the 1-to guide member 8.9 as a frame. This support 10 supports three power supply terminals T-11a, llb, and lie, and these three power supply terminals 11a,
lb.

11c are supported at positions corresponding to the three power supply patterns 8a + 8b + 6c formed on the edge card 1, respectively.

In addition, three power supply terminals 11a+ l lb+ 11
c are respectively biased and supported toward the mounting side of the Edge card 1, and are engaged with the power supply patterns 6a, 6b, and 8c by inserting the Edge card 1 into the board frame 2 (see Fig. 2 (b). ) and Figure 3).

In the first embodiment of the present invention configured as described above, the Enon card 1 is inserted into the board frame 2 from the main edge 3 side. In this way, the edge card 1 is guided and pushed in by the guide members 8 and 9 in the direction of the connector 7, thereby connecting the three power supply terminals 11a and 1 supported by the support 10.
lb+11e slides into contact with the power supply patterns (3a, 3b, and 3c) corresponding to the respective arrangement positions.Then, the edge card 1 is pushed in until the main edge 3 is connected to the connector 7.

Since the support 10 is installed between the upper and lower guide members 8 and 9 at a position on the insertion side from the center between the edge card 1 insertion side and the connector 7 placement side of the board frame 2, this support The three power supply terminals 11a and 11btlLc supported by the tool 10 each have three power supply patterns (3a.

Sub edge 4 from the longitudinal center of 6 b + 8 c
It is seven to be located on the side.

Thus, the power supply terminals 11a, flb, and lie supply power to the sub-edge 4 side from the center in the longitudinal direction of each power supply pattern 6a, 8b, and Be, respectively.

As a result, [each component mounted in the partial and lower component mounting areas 54, 5b is connected to the connector 7 and the three power supply patterns 8].
Power will be supplied from the nearest location among A + 6 B + 6 E.

FIGS. 4(a) and 4(b) show a second embodiment of the power supply system for the edge card according to the present invention.

The difference in the configuration from the first embodiment is that power feeding patterns 12a and 12b are formed in a band shape along the longitudinal direction of the edge card 1 at one end and the lower end of the edge card 1, and the power feeding patterns 13a and 13b are arranged in the grooves of the guide members 8 and 9 of the board frame 2 that guide the edges 1, L, m and the lower part of the edge card 1, respectively.

Note that the power supply terminals L3a and 13b are arranged in the groove at a position closer to the insertion side than the longitudinal center of the guide member 8.9.

In the method of feeding power to the edge card in the second embodiment configured as described above, the edge card 1 is inserted into the board frame 2 from the main edge 3 side thereof. In this way,
When the edge card 1 is guided by the guide members 8 and 9 and pushed in the direction of the connector 7, the power supply terminals 13a are respectively arranged in the grooves of the guide members 8 and 9 of the L card.
, 13b are in sliding contact with power supply terminals 13a and 13b formed in a band shape on a portion of the edge card 1 and at the bottom thereof. In this state, the edge card 1 is pushed in until the main edge 3 is connected to the connector 7.

A power supply terminal 13a is disposed in the groove at a position on the insertion side of the longitudinal center of the upper and lower guide members 8 and 9.

13b, the power supply terminals 13atL3b are negative and negative power supply patterns 12a, respectively.

It will be located on the sub-edge 4 side from the longitudinal center of 12b.

Thus, the power supply terminals 13a and 13b supply power to the sub-edge 4 side from the longitudinal center of each power supply pattern 12a and 12b, respectively.

As a result, each component mounted in the component mounting areas 5a and 5b on the 1st and 1st sides is supplied with power from the closest part of the power supply patterns 12a and 12b of the connector 7 and the 1st side.

FIGS. 5(a), (b), and (e) show a third embodiment of the power supply system for the edge card according to the present invention.

The difference in configuration l- from the first and second embodiments is that the power supply pattern 14 includes a knife-shaped power supply pin 15.

The knife-shaped power supply pins 15 are installed as many as necessary at required locations.

Further, the power supply terminals 16 are arranged in the same number as the knife-shaped power supply pins 15 on the board frame 2 to sandwich the knife-shaped power supply pins 15 from the front or side, and have a cord of a predetermined length. The cord is connected to a power source.

The method of feeding the edge card 1u in the third embodiment configured as described above connects the knife-shaped power supply pin 15 of the edge card 1 mounted on the board frame 2 to the power supply end -r16.
holds it in place and supplies power to it.

According to the third embodiment, power can be supplied to a desired location within the edge card l, and the sliding contact space of the power supply end J'1B is not necessarily required. Further, even when a VLSI or the like is partially used, power can be supplied from the nearest knife-shaped power supply pin 15.

[Effects of the Invention] As is clear from the explanation below, the power supply method for the Edge card according to the present invention forms a power supply pattern around the component mounting area of the Edge card, and the board frame on which the Edge card is mounted. A power supply terminal is placed on the edge, and this power supply terminal is connected to the power supply pattern to supply power to the component mounting area. However, the power supply impedance does not increase, and therefore the power supply voltage and noise margin do not decrease.

4. WI of drawings! FIG. 1(a) is a schematic front view of the edge card according to the first embodiment of the present invention, and FIG. 1(b) is a schematic front view of the edge card according to the first embodiment of the present invention.
2(a) is a schematic front view of the board frame, FIG. 2(b) is a schematic side view of FIG. 2(a), and FIG. 3 is a schematic side view of the board frame engaged with the power supply pattern. FIG. 4(a) is a partial plan view showing the power supply terminal, and FIG. 4(b) is a partially schematic front view showing the power supply pattern in the second embodiment of the present invention.
) is a schematic sectional view showing the supply terminal arranged in the upper and lower guide members in the second embodiment of the present invention, FIG. 5(a)
is a schematic front view showing a knife-shaped power supply pin according to the third embodiment of the present invention, FIG. e
) is an explanatory diagram showing a power supply terminal that holds a knife-shaped power supply pin from the front.

1... Edge card, 2... Board frame, 8
a+8b+ 8e, L2a, 12b, 14'-" power supply pattern, 8, 9... guide member, 10... supporter, 11a.

lfb, llc, 13a, 13b, 1B-power supply terminal, 1
5...Knife-shaped power supply pin.

Claims (4)

[Claims] (1) Form a power supply pattern around the component mounting area of a printed circuit board having a tangential terminal, arrange the power supply terminal on the board frame on which the printed circuit board having the tangential terminal is mounted, and connect this power supply terminal to the power supply pattern. A method for feeding power to a printed circuit board having a tangential terminal, which is connected to feed power to the component mounting area. (2) The power supply pattern is formed in a band shape along the longitudinal direction of the printed circuit board having the tangential terminals, between the upper and lower parts of the printed circuit board having the tangential terminals, and between the component mounting areas, and the power supply pattern is formed in the upper and lower frames of the board frame. A method for feeding power to a printed circuit board having a tangential terminal according to claim 1, which is supported by a support installed between the printed circuit boards and arranged at a position corresponding to the power feeding pattern. (3) The power supply pattern is formed in a strip shape along the longitudinal direction of the printed circuit board having the tangential terminals, at the top and bottom of the printed circuit board having the tangential terminals; Claim 1 disposed on a guide member of a board frame that guides the board frame.
Power supply method to a printed circuit board with tangential terminals as described in . (4) Power supply to a printed circuit board having a tangential terminal according to claim 1 or 2, wherein the power supply pattern has a knife-shaped power supply pin, and the power supply terminal holds the knife-shaped power supply pin. method.