JPH0418438B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a card edge connector for connecting a connecting end of a board to another board.

<Prior art> As a card edge connector that connects the connection end of a board to another board in a substantially perpendicular state, the 9th card edge connector
Some are shown in cross-sectional schematic diagrams in the figures. This card edge connector 8 is mounted on the board 2, and the connecting end of another board is attached from above.

The card edge connector 8 has a mounting hole 82 formed inside a housing 81 made of an insulating material, and a plurality of contacts 83 including a pair of contact pieces 83a and 83b are arranged in the mounting hole 82.
Further, a terminal 84 is provided protruding from the lower surface of the housing 81 and is soldered to a pattern circuit on the board 2.
A long groove-shaped insertion opening 85 is provided above the mounting hole 82, that is, on the top surface of the housing 81. The connection end of the board 9 is inserted through this insertion opening 85, and the pattern circuit and each contact piece 83a, 83b are connected to each other. Electrical connection between substrate 2 and substrate 9 is obtained by contact.

In order to solder and mount such a card edge connector 8 on the board 2, deep soldering is usually used.

That is, in depth soldering, the lower surface of the board is passed through a depping tank together with other mounted components, thereby performing soldering automatically and in mass production.

<Problems to be Solved by the Invention> On the other hand, when connecting the board 9 from the bottom side of the board 2, the card edge connector 8 itself must be soldered to the bottom side of the board, that is, the side opposite to other mounted components. No. In this case, since the terminal 84 of the card edge connector 8 protrudes from the surface on which other mounted components are mounted, that is, the upper surface of the board, it cannot pass through the depping tank together with the other mounted components. Therefore, only the card edge connector 8 must be added later and the terminals 84 must be manually soldered to the board 2, which hinders mass production and automation of mounting.

<Means for Solving the Problems> The present invention has been made in view of the above-mentioned problems, and includes forming a lower insertion port on the lower surface of the housing that communicates with the upper insertion port through the mounting hole in the housing. , the pattern circuit at the connection end of the board inserted through either the upper insertion opening or the lower insertion opening is connected to the contacts arranged in the mounting hole.

<Function> Since the Card Edge connector has an upper insertion opening and a lower insertion opening, it is possible to connect a board to another board from the bottom side. That is, the card edge connector can be mounted on the same side as other mounted components as before, without being attached to the bottom surface of the board.

Therefore, it becomes possible to perform depth soldering together with other mounted components. Furthermore, since the upper insertion port and the lower insertion port are formed in communication with each other, it is possible to arrange a plurality of boards on which card edge connectors are mounted in a multi-tiered configuration using, for example, connection boards.

<Example> Hereinafter, the card edge connector of the present invention will be described in detail based on the drawings.

FIG. 1 is a perspective view of the card edge connector 1, and FIG. 2 is a sectional view taken along the line X--X in FIG. The card edge connector 1 has a housing 11 made of a highly insulating material such as polystyrene resin, and a mounting hole 12 is formed in the housing 11 to extend vertically through the housing 11. A long groove-shaped upper insertion opening 13 is formed on the upper surface 11a of the housing 11, and a long groove-shaped lower insertion opening 14 is formed on the lower surface 11b of the housing 11, and both are vertically connected through the mounting hole 12. There is. Further, a plurality of contacts 15 each having a pair of contact pieces 15a and 15b are arranged in the mounting hole 12.
The contact pieces 15a and 15b are made of a conductive material with high springiness such as phosphor bronze.
One contact portion 15c having a predetermined contact pressure is formed by bending a part of a and 15b inward to the mounting hole 12.
form. Furthermore, terminals 16, 16 are provided protruding from the lower surface 11b of the housing 11 to be connected to the contact pieces 15a, 15b. Both terminals 16, 16
are protruded at sufficient intervals so as not to contact the pattern circuit of the board mounted from the lower insertion opening 14.

Normally, these contacts 15 are arranged at a predetermined pitch such as 1.27 mm or 2.54 mm, and the number of poles is also determined as appropriate.

As shown in the schematic cross-sectional view of FIG. 3, in the board 2 on which the card edge connector 1 is mounted, a hole 21 that substantially aligns with the upper insertion opening 14 is bored in the mounting portion thereof.

In such a state, the connecting end of the other board (hereinafter simply referred to as the card edge) is connected from the top side of the board 2.
3, insert the card edge 3 from the upper insertion opening 13, and connect the pattern circuit 31 and the contact portion 15c. Conversely, when connecting the board from the bottom side of the board 2, if the card edge 4 is inserted into the lower insertion opening 14 from the bottom side of the board 2 through the hole 21, the pattern circuit 4 is connected in the same way.
1 and the contact portion 15c are connected.

Furthermore, in order to connect boards in a so-called multi-tiered manner using the card edge connector 1 of the present invention, as shown in the exploded perspective view of FIG. 4 and the side view of FIG. 2B, 2C, and 2D may be inserted in sequence.

The connection board 5 has a fixed side 51 formed approximately in the center, and card edges 52 and 53 formed above and below the fixed side 51, respectively. Also board 2A
2D, the card edge connector 1 is mounted together with other mounted components in the state described in FIG. 3.

In order to connect the boards 2A to 2D in multiple stages, first the card edge 52 is inserted into the lower insertion opening 14 of the board 2A. Since the card edge 52 has a sufficient length, it passes through the card edge connector 1 and is further inserted into the lower insertion opening 14 of the card edge connector 1 mounted on the board 2B.
Further, the upper insertion opening 13 of the card edge connector 1 mounted on the board 2C is also inserted into the card edge 53. Since the same card edge 53 has a sufficient length, it passes through the card edge connector 1 mounted on the board 2C and its tip is inserted into the card edge connector 1 on the board 2D. Then, as shown in FIG. 6, which is a schematic cross-sectional view taken along the Y-Y line in FIG. 5, each board 2A, 2B,
2C and 2D are connected in multiple stages. Furthermore, by increasing the length of the pattern circuits 52 and 53, it is possible to increase or decrease the number of connected substrates as appropriate.

Note that the connection board 5 can also be attached to the board support part 54 in advance with screws 55. Also, the order in which the boards are inserted can be selected as appropriate depending on the shape of the device, etc.

Furthermore, as shown in the exploded perspective view in FIG. The card edge 71 of another connecting board 7 is inserted into the lower part, and the lower card edge 72 is inserted into the upper insertion opening 13 of the card edge connector 1 mounted on the board 2E. Then, as shown in the side view of FIG. 8, the boards 2A to 2F can be connected in multiple stages and in a complex manner.

<Effects of the Invention> As described above, in the CardEdge connector of the present invention, the upper insertion opening provided on the upper surface of the housing and the lower insertion opening provided on the lower surface of the housing communicate with each other through the internal mounting hole. Card edges can be connected from both the top and bottom of the mounted board. Therefore, it is possible to attach boards in many ways, such as connecting boards on which card edge connectors are mounted in multiple stages. Furthermore, since this connector can be deep soldered together with other mounted components, the soldering process is simplified, resulting in a significant reduction in construction costs. Therefore, it is suitable for mass production and automation.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the card edge connector of the present invention, FIG. 2 is a sectional view taken along the line X-X in FIG. 5 is a side view showing the multi-stage mounting state; FIG. 6 is a schematic cross-sectional view taken along the line Y-Y in FIG. 5; Fig. 7 is an exploded perspective view showing another mounting state, Fig. 8 is a side view showing the same mounting state, and Fig. 9 is an exploded perspective view showing another mounting state.
The figure is a schematic cross-sectional view illustrating a conventional card edge connector. DESCRIPTION OF SYMBOLS 1...Card edge connector, 11...Housing, 11a...Top surface, 11b...Bottom surface, 12...
... Mounting hole, 13 ... Upper insertion port, 14 ... Lower insertion port, 15 ... Contact, 15c ... Contact part, 16 ... Terminal, 2 ... Board, 21 ... Hole,
3, 4... Connection end (card edge).

Claims (1)

[Scope of Claims] 1. A long groove-shaped upper insertion opening is formed on the upper surface of the housing, a plurality of contacts are arranged at a predetermined pitch in an internal mounting hole communicating with the upper insertion opening, and a terminal is connected to the contact. protrudes from the lower surface of the housing, and the lower surface of the housing is formed with a lower insertion port that communicates with the upper insertion port through the mounting hole, and from either the upper insertion port or the lower insertion port. A card edge connector characterized in that a pattern circuit of an inserted board is connected to the contact.