JPH05343125A - Connector for printed board - Google Patents

Abstract

PURPOSE:To lessen size of a connector itself, decrease a number of pattern wires formed in a board and to lessen board size by combining the first/second housing parts, mounted on the first/second boards respectively, and forming the connector. CONSTITUTION:The first/second housing parts 2, 3 are mounted on upper/lower sides of the first/second substrates 11, 12 respectively. An engaging piece 8 of the housing part 3 is engaged with an engaging protrusion 5 of the housing part 2 to integrally form the housing parts 2, 3, while interposing a spacer 13 in a suitable part between the boards 11, 12 to fix the boards 11, 12 each other. The housing parts 2, 3 are combined to constitute a single receiving side connector. Here by providing no partition of separating the housing parts 2, 3 in the connector inside, only a single plug-in connector is required. Further by arranging the connector between two sheets of the boards, height of an electronic equipment is reduced. Since the connector functions as also a spacer, a number of spacers can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printed circuit board connector mounted on a printed circuit board, and more particularly to a printed circuit board connector used in an electronic device having a plurality of printed circuit boards.

[0002]

2. Description of the Related Art FIG. 5 is a schematic sectional view showing an example of an electronic device composed of two substrates.

This electronic equipment is composed of a power board 21 and a control board 22 on which predetermined electronic circuits are formed. The control board 22 is fixed to the case 27 via a spacer 25a, and the power board 21 is disposed on the control board 22 via a spacer 25b. The pattern wiring provided on each of the two substrates 21 and 22 is selectively connected to each other via a cable 26 (or a connector). In addition, each substrate 21, 22
Are provided with input / output connectors (receiving side connectors) 23, 24 for connecting to external devices, respectively. Both ends of the connectors 23 and 24 on the insertion side are arranged outside the case 27. A conductive shield plate may be placed between the two substrates to prevent interference between the two.

FIG. 6 (a) is a front view showing an example of a conventional connector used in the above-mentioned electronic equipment, FIG. 6 (b) is its top view, and FIG. 6 (c) is its side view. ..

In the conventional connector, a box-shaped housing 31 having one end opened, a pair of fixing portions 33 provided on the side portions of the housing 31, and one end portion thereof are arranged in the housing 31. It is composed of a plurality of connector pins 34. The connector pin 34 is attached to the housing 3
A portion of the side wall 1 which is led out is bent downward at a substantially right angle.

In this connector, the other end of the connector pin 34 is soldered to the substrate and, for example, the fixing portion 33 is provided.
A screw is passed through the hole provided in the board, and the board and the connector are fixed by this screw. Then, a plug-in connector is inserted into this connector, and is connected to an external device via this plug-in connector.

If the number of connector pins is large,
For example, as shown in FIGS. 6A to 6C, the pins 34 are arranged in two rows in the housing 31.

[0008]

However, the conventional printed circuit board connector described above has the following problems. That is, since the power board 21 supplies a power supply voltage to an external device, the power board 21 is normally used.
A power-type connector capable of passing a large current is provided in the. On the other hand, the control board 22 transmits signals to and from an external power source, so that a signal-system connector suitable for miniaturization is usually arranged on the control board 22.

However, there are cases where signals are transmitted between the power board 21 and the external equipment. In this case, conventionally, the power supply voltage is supplied to the external device via the connector 23 provided on the power board 21. And the power board 2
1 is electrically connected to the pin of the connector 24 on the control board 22 side through the cable 26 (or connector) and the pattern wiring provided on the control board 22. It is connected to an external device via the connector 24. Conversely, when connecting the power supply line of the control board 22 and an external device, the power supply line (pattern wiring) of the control board 22 and the connector 2 on the power board 21 side are connected.
It is necessary to electrically connect the pin 3 to the cable 26 (or connector) and the pattern wiring provided on the power board 21. Therefore, in an electronic device using a conventional connector, the number of pattern wirings to be provided on the board and the number of cables (or the number of poles of the connector) connecting the power board and the control board are inevitably increased, and the mounting density is increased. And the length of the pattern wiring becomes longer, which makes it more susceptible to noise and the like.

In the case of an electronic device having two control boards, if only signals are transmitted between the electronic device and an external device, a connector may be provided on each board, or Alternatively, it is conceivable to provide the connector only on either one of the substrates. When the connectors are individually provided on the respective boards, the occupying area of the connectors is large, which prevents the packaging density from increasing. Further, since the number of parts is large, the product cost is high. Furthermore, since the height of the connector is high (particularly in the case of an automobile connector), a large case is required, and the weight of the electronic device becomes heavy. On the other hand, if the connector is provided on only one of the boards, the number of pattern wirings to be provided on the board is increased, the size of the board is increased, and the number of cables (or the connectors) connecting the two boards is increased. However, there is a problem that the number of poles) increases. Further, in the case of a multi-pole connector, pattern wiring is concentrated around the connector, which makes it difficult to design the board.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide a connector for a printed circuit board, which can miniaturize the connector itself and further miniaturize the electronic device as compared with the conventional one. And

[0012]

A printed circuit board connector according to the present invention has a first housing portion mounted on a first substrate and a second housing portion mounted on a second substrate. However, the first and second housing parts are combined to form one receiving-side connector, which can be connected to one inserting-side connector.

[0013]

In the present invention, the first housing portion mounted on the first board and the second housing portion mounted on the second board are combined to form one receiving side connector. Therefore, the area occupied by the connectors is smaller than that when the connectors are individually mounted on each board. Further, since the pattern wiring of each board and the connector can be directly connected, the number of cables for connecting both boards to each other can be small, and the number of pattern wiring to be provided on the board can be reduced. it can. This allows
It is possible to promote miniaturization of the board and miniaturization of the electronic device.

[0014]

Embodiments of the present invention will now be described with reference to the accompanying drawings.

FIG. 1 is a perspective view showing a printed circuit board connector according to an embodiment of the present invention, and FIGS. 2 (a), 2 (b) and 2 (c).
Is a plan view, a top view and a side view showing the first housing part 2, respectively, and FIGS. 3A, 3B and 3C are plan views, a top view and a side view showing the second housing part 3, respectively. Is.

The connector 1 according to the present embodiment can be divided into two members, a first housing part 2 and a second housing part 3, and these two members are vertically combined. Has been done.

The first housing portion 2 is provided with an engaging projection 5 and a fixing portion 6 on its side portion, and is fixed to the substrate by the fixing portion 6. Inside the housing portion 2, one end side of a plurality of (five in the figure) connector pins 4 is arranged. These connector pins 4 are bent downward at the portions led out from the side wall of the housing.

The second housing part 3 is provided with an engaging piece 8 extending downwardly on its side part. This engaging piece 8
Are engageable with the engagement projections 5 of the first housing part 2. Inside the housing part 3, one end side of a plurality of (three in the figure) connector pins 9 is arranged. These connector pins 9 are bent upward at the portions led out from the side wall of the housing.

FIG. 4 is a side view showing a method of mounting a connector on a substrate according to this embodiment.

The first housing part 2 is mounted on the first substrate 11. The second housing part 3 is mounted on the lower side of the second substrate 12. Then, the engaging projections 5 of the first housing portion 2 are engaged with the engaging pieces 8 of the second housing portion 3 to integrate the housings 2 and 3, and
The substrates 11 and 12 are fixed to each other by interposing a spacer 13 at an appropriate position between the substrates 11 and 12.

In this embodiment, the first and second housing parts 2 and 3 are combined to form one receiving side connector. In this case, since there is no partition wall for separating the housing portions 2 and 3 inside the connector, only one insertion side connector is required. Further, since there is no partition wall between the housing portions 2 and 3, the material cost corresponding to this partition wall can be reduced. Further, since the connector is arranged between the two substrates, the height of the electronic device can be reduced as compared with the conventional one. Furthermore, since this connector also functions as a spacer, the number of spacers can be reduced.

Furthermore, since the pattern wirings connected to the connectors are dispersed on the boards 11 and 12, the boards 11 and 12 are different from the case where the connector is provided on only one of the two boards. It is possible to reduce the number of pattern wirings to be provided on the board and also to reduce the number of cables connecting between the substrates 11 and 12. In some cases, a cable connecting the substrates 11 and 12 may not be necessary at all. Furthermore, when the shield plate is arranged between the two substrates, the shield plate can be arranged as in the conventional case.

The present embodiment can also be applied to a so-called hybrid connector having both a power terminal through which a large current flows and a small current signal terminal. Therefore, even when one board is a power board and the other board is a control board, the connector according to the present embodiment can be used.

In the above embodiment, the case where the first and second housing parts are arranged in the height direction has been described. For example, the first and second housing parts are arranged in the lateral direction. Alternatively, one connector may be configured. Thereby, the height of the connector can be further reduced.

[0025]

As described above, according to the present invention, the first housing portion mounted on the first substrate and the second housing portion mounted on the second substrate are combined to form the first housing portion.
Since the two connectors are configured, the size of the connector itself can be reduced, the number of pattern wirings to be formed on the substrate can be reduced, and the substrate size can be reduced. As a result, it is possible to further reduce the size of the electronic device as compared with the related art.

[Brief description of drawings]

FIG. 1 is a perspective view showing a printed circuit board connector according to an embodiment of the present invention.

2A, 2B, and 2C are a plan view, a top view, and a side view, respectively, showing a first housing portion.

3A, 3B, and 3C are a plan view, a top view, and a side view, respectively, showing a second housing portion.

FIG. 4 is a side view showing a board mounting method of the connector according to the embodiment of the invention.

FIG. 5 is a schematic cross-sectional view showing an example of an electronic device composed of two substrates.

6A, 6B, and 6C are a front view, a top view, and a side view, respectively, showing an example of a conventional connector.

[Explanation of symbols]

 1, 23, 24; Connector 2, 3; Housing part 4, 9, 34; Connector pin 5; Engagement protrusion 6, 33; Fixed part 8; Engagement piece 11, 12, 21, 22; Substrate 13, 25a, 25b; spacer 26; cable 27; case 31; housing

Claims (1)

[Claims] 1. A first housing part mounted on a first substrate, and a second housing part mounted on a second substrate, wherein the first and second housing parts are combined. A connector for a printed circuit board, wherein one connector on the receiving side is configured to be connectable to one connector on the inserting side.