JPH0316235Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a two-way connector used for interconnecting a plurality of printed circuit boards.

<Prior Art> Conventionally, in order to connect two or more printed circuit boards to each other, as shown in FIG. Insert it and fix it by soldering,
On the other hand, the connector 3 is attached to the end of the printed circuit board B by the contacts 4 planted therein, and the upper part of the contact 2 is inserted into the mounting hole of the connector 3, which is drilled parallel to the printed circuit board B. This connects substrates A and B.

Therefore, in this case, the connection of both printed circuit boards A and B is limited to connecting them at right angles to each other due to the structure of connectors 1 and 3, and it is necessary to stack both printed circuit boards A and B to make effective use of the space. Furthermore, it was impossible to change the configuration other than orthogonal connection, and therefore the range of use was extremely limited.

In another example shown in FIG. 12, one printed circuit board A is similar to the above example, but a connector 6 is mounted on one end of the other printed circuit board C, and contacts 4 are installed on the other printed circuit board C. The upper part of the contact 2 is inserted into the contact insertion hole of the connector 6, which is bored perpendicularly to the printed circuit board C, and the printed circuit boards A and B are connected to each other by overlapping. be.

Therefore, in this case, unlike the former conventional example, although it is possible to effectively utilize space by stacking the contacts 2 and 4, there is a limit to how short the connector 6 can be because both contacts 2 and 4 face each other. As a result, the opposing gap H between the printed circuit boards A and C cannot be reduced, and in reality, the gap H is limited to about 8 to 9 m/m.

In this case, even if the upper printed circuit board C is removed during repair work for IC elements, LSI elements, and other various circuit elements mounted on each side of both printed circuit boards A and C, it must be temporarily held in an upright position. In other words, in this case as well, it was impossible to change the aspect at all.

Also, a lower printed circuit board A as shown in FIG.
There is a means, such as a hybrid IC, for interposing and holding the printed circuit board D between the two supports 7, 7 which are set facing each other, using clips 8, 8 at the upper ends of the supports 7, 7. Both printed circuit boards A,
It was extremely difficult to repair the parts located between D. For example, when flow soldering the printed circuit board A, there is a risk that solder particles may accumulate between the printed circuit board A and the printed circuit board B, causing the circuit to shorten. To repair this, the supports 7, 7 of the hybrid IC had to be removed one by one, which was very inconvenient.

Furthermore, Figures 14 and 15 (utility development 61-60487)
In the example shown in No. 1, printed circuit board connection device), contacts 10 and 12 and terminal 1 are connected to one end of printed circuit board A.
A connector 9 with 1 and 1 protruding from each other in three directions is attached to the end of the other printed circuit board E using contacts 10, and a connector 13 is fixed to the end of the other printed circuit board E using contacts 14 planted therein. Contact 12 of connector 9 and terminal 15 of connector 13
By inserting the two printed circuit boards A,
E is held in the orthogonal state (Fig. 14), and terminal 11
By inserting the terminals 15 of the connector 13 into the terminals, both printed circuit boards A and E are held in a parallel extended form (FIG. 15).

In this case, it is easy to inspect and repair the parts on both printed circuit boards A and E, but it takes up a lot of space, and the parallel state (Fig. 15) is extremely unstable. There were some drawbacks that made it difficult to use.

In addition, as shown in FIG. 16 (Utility Model Application No. 57-110880), one side of the T-shaped sockets 17 ₁ , 17 ₂ has a female contact portion 18 , 18 , and a contact piece 19 is provided in a direction perpendicular to this. 19 are provided so that one end of the printed wiring board 16 can be freely inserted into and removed from the female contact portions 18, 18, respectively, and contact pieces 19, which are adjacent to each other, are provided.
There is a device in which the adjacent sockets 17 ₁ , 17 ₂ . It is not intended for replacing or repairing parts on the wiring board 16, and therefore is not suitable for parts replacement or repair, and the distance between adjacent wiring boards 16, 16... It was difficult to take.

<Problems to be Solved by the Invention> The present invention aims to eliminate the drawbacks of the conventional printed circuit board connection portions described above and to provide a two-way connector that can freely and stably connect two printed circuit boards to each other in two directions.

<Means for solving the problem> A connector having pin holes of the same shape on two orthogonal surfaces and a dovetail fitting convex portion on the opposing surface sandwiching these two surfaces, and The connector has a retaining groove in which the dovetail fitting convex portion can be received from one direction, and a pin plug is provided upright in parallel to the retaining groove.

<Function> By inserting the pin holes of the connector fixed on one printed circuit board, which are perpendicular to the printed circuit board, into the pin plugs of the connector fixed on the other printed circuit board, The printed circuit boards are connected and held in parallel at regular intervals, and the remaining pin holes, that is, the pin holes provided in the direction parallel to the printed circuit board, are fitted into the pin holes of the connector on the mating printed circuit board. When mated, the two printed circuit boards are connected and held in a perpendicular state by fitting into the pin holes of the connectors on both printed circuit boards. By selectively replacing the pin plug with a pin plug, the configuration of both printed circuit boards can be changed in two directions. Moreover, in both of the above two embodiments, the dovetail fitting convex portion formed on one connector fits into the mating connector holding groove, and acts to stabilize the connection state between both printed circuit boards.

<Example> One connector 2 having pin holes on two orthogonal sides
0, and another connector 2 with pin plugs inserted into the pin holes of the connector 20 penetrating and standing up on both sides.
6, and both connectors 20 and 26 are attached to adjacent printed circuit board surfaces to be connected to each other.

Therefore, to explain the structure of the connector 20 in detail, the connector 20 has an approximately hexahedral outer shape, and a tongue gap 24 of a terminal fitting 23, which will be described later, is located approximately in the middle of two mutually orthogonally adjacent side surfaces 20 ₁ and 20 ₂ . Connecting square pin holes 22 ₁ , 22 ₁ ... and 22 ₂ , 22 ₂ ...
are arranged at equal intervals.

On the other hand, the two side surfaces 20 ₁ of the connector 20,
A dovetail fitting convex portion ₂ having a square end surface is provided near one corner of the side surfaces 20 ₃ and 20 ₄ facing each other with 20 2 in between.
1 and 21 are installed protrudingly.

In this case, the widths a and b of the two side surfaces 20 ₁ and 20 ₂ are made equal, and the biasing direction of the fitting protrusions 21 and 21 with respect to the pin hole 22 ₂ and the fitting protrusions 21 and 21 with respect to the pin hole 22 ₁ are It is necessary that the direction of bias is the same.

Next, the connector 26 has a substantially housing-shaped cross section, and the dovetail fitting convex portions 2 of the connector 20 are provided on two opposite sides thereof.
Dovetail-shaped holding grooves 27 at positions corresponding to 1 and 21,
27 is recessed in one direction, and further on the side surface where the retaining grooves 27, 27 of the connector 26 meet on the extension,
Pin holes 22 ₁ ... or 2 of the other connector 20
2 ₂ Pin plugs 22, 22... to be fitted and inserted in line with 2 2...
...is erected facing both sides.

As shown in FIG. 8, the terminal fitting 23 described above has legs 25, 25 protruding in parallel from the upper and lower ends of the bent portions of the two opposing tongue pieces 28, 28. The pin plugs 22, 22... are located in the tongue gaps 24 of the tongues 28, 28 with two arrows c,
Slanted guide surfaces 28 ₁ and 28 ₂ are respectively formed on the end edges of the tongue pieces 28 and 28 so that the pin plugs 22 and 28 can be easily received when inserted from the direction d. In order to make good contact with the pieces 28, 28, the convex portion ₂₄₁ is provided inwardly.

Two connectors 20, 2 configured in this way
6 are attached to the ends of the printed circuit boards A and B, respectively, as shown in FIGS. 9 and 10.
That is, a connector 26 having a pin plug is attached to the surface of the printed circuit board A with the outwardly protruding portions of the pin plugs 22, 22, etc., and a connector 20 is attached to the terminal fitting 23 of the printed circuit board B near the end.
It is fixed by soldering by legs 25, 25.

When both printed circuit boards A and B are connected parallel to each other by fitting the pin hole 22 ₁ and the pin plug 22 as shown in FIG. The height H ₁ from the highest point of ... can be made sufficiently small,
Moreover, the height H ₁ of a large component mounted on the board A, such as an electrolytic capacitor Q, is H ₂ (usually 5 to 10
m/m).

Therefore, the space between the board A and the other equipment 5 located above it can be fully utilized, and when circuit parts mounted on the board A or B need to be replaced or repaired. Connect printed circuit board B to both connectors 2
Both printed circuit boards _A ,
B can be held at right angles. In this case appliance 5
In contrast, the printed circuit board A or B can be sufficiently spaced apart.

<Effects of the Invention> Since the present invention is configured as described above, the connector 20 can also be made smaller in size. or,
The connector 20 has two adjacent pin holes of the same shape and size.
Since it is provided on the side surface, the aspect of the board B can be changed in two directions, and as a result, maintenance and inspection of the circuit elements on both printed boards becomes easier. Moreover, the connector 20 is not only held by a pin plug, but also when the printed circuit board B is parallel to the circuit board A or when connected at right angles, the dovetail-shaped fitting protrusions formed on both end surfaces of the connector 20 are always maintained. Since it fits into the holding grooves 27, 27 of the mating connector, it is extremely stable against falling or twisting.

In addition, it is only necessary to prepare one type of terminal fitting inserted into the connector 20, and since the tongue of the terminal fitting has elasticity, it is possible to maintain sufficient electrical contact even when a pin plug is inserted. In addition to being able to maintain the temperature, the structure is simple and can be manufactured at low cost.

[Brief explanation of the drawing]

FIG. 1 is a side view of one of the connectors of the present invention, FIG. 2 is a left side view of the same as above, FIG. 3 is a right side view of FIG. 1, and FIG. 4 is a top plan view of FIG. Figure 5 shows
FIG. 1 is a bottom view, FIG. 6 is a side view of the mating connector of the above connector, FIG. 7 is a top plan view of both the connectors in FIGS. 3 and 6 when they are mated, and FIG. 8 is a Fig. 1 is a perspective view of a terminal fitting embedded in the connector; Fig. 9 is a vertical cross-sectional side view showing how two printed circuit boards with both connectors attached are connected; Fig. 10 is a vertical cross-sectional side view showing another connection example. 11 is a partial vertical cross-sectional view of a conventional printed circuit board connection structure, FIG. 12 is a partial vertical cross-sectional view showing another conventional example similar to the above, and FIG. 13 is a printed circuit board mounting diagram showing another conventional example. 14 is a partial side view showing another printed circuit board connection example; FIG. 15 is a partial side view showing an example in which the connection direction of the same as above is changed; FIG. 16 is a partial side view of the same as above, and FIG. FIG. 2 is a partially exploded perspective view showing a conventional example. 20, 26... Connector, 20 ₁ , 20 ₂ , 20
₃ , 20 ₄ ... Side surface, 21 ... Dovetail fitting convex portion, 2
2... Pin plug, 22 ₁ , 22 ₂ ... Pin hole, 2
6... Connector, 27... Holding groove, A, B... Printed circuit board.

Claims (1)

[Scope of utility model registration request] Two connectors that connect adjacent printed circuit boards have pin holes on two orthogonally adjacent side surfaces, and dovetail-shaped fitting convex portions on two opposite side surfaces sandwiching the two sides, and It consists of a connector that has a pin plug to be fitted extending through the inside and outside and a holding groove parallel to the pin plug so as to receive the fitting convex part, and connection is attempted by selectively replacing the pin hole with the pin plug. A two-way connector characterized by changing the direction of the printed circuit board.