JPH05326065A - Multiconnector for board - Google Patents

Abstract

(57) [Abstract] [Purpose] Regarding a board multi-connector equipped with a power supply / grounding terminal, the power supply / grounding terminal can be freely replaced with its layout position or signal connection terminal to expand the applicable range and signal terminal. The purpose is to improve productivity by improving mounting density. [Structure] A multi-connector for a board, wherein a plurality of signal terminals 21 _{-1 to} 21 _-4 are planted inside an insulator such that respective contacts 21a having the same shape and forming free ends are arranged in parallel in a matrix. Of the signal block 42, and the power supply terminal 44 and the ground terminal 45 of which the contact area having a larger cross-sectional area than the signal terminal and forming the free end is the same as the contact 21a area of the signal terminal. The power supply block 46 and the signal block 42 or the power supply block 46 are housed in close contact with each other, which are planted in parallel on the matrix of the same pitch as the signal terminals without protruding from the outer surface of the insulator having the same size as the insulator. An insulating housing (47) is provided at least.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a board multi-connector having a power supply / grounding terminal for active maintenance, and in particular, the power supply / grounding terminal can be freely replaced with its arrangement position or a signal connecting terminal. The present invention relates to a multi-connector for a board, which has a wider application range as a connector and an improved signal terminal mounting density to improve productivity.

In the recent electronic device field, when connecting units between devices, it is often the case that the devices are connected while the power is on. In this case, the connection is made in the order of ground → power supply → signal. Is absolutely necessary.

Further, the power supply connection terminal and the ground connection terminal have to have a larger allowable current capacity value than the signal connection terminal, so that it is usually necessary to use a terminal larger than the signal connection terminal. is there.

Therefore, a terminal arranging region for arranging the power supply connecting terminal and the ground connecting terminal is formed outside the signal connecting terminal arranging region of the insulator constituting the connector, for example, on both sides in the longitudinal direction, and if necessary. The power supply connection terminal and the ground connection terminal are arranged to prevent the expansion of the signal connection terminal arrangement area and consequently suppress the improvement of the terminal density. Therefore, the correspondence is strongly desired.

[0005]

2. Description of the Related Art FIG. 4 is a schematic configuration diagram for explaining an example of a conventional board multi-connector, wherein (4-1) is an external perspective view,
(4-2) is a cross-sectional view of (4-1) taken along arrows a to a '.

In the drawing, the case where the jack side is mounted on the board will be described as an example. In FIG. 4, the board multi-connector (hereinafter simply referred to as a connector) 2 mounted on one side of the circuit board 1 has one end formed into a bifurcated jack contact 21a as shown in the enlarged view (a). Four types of jack terminals 21 _-1 , 21 _-2 , 21 _-3 , which have the other end bent at an obtuse angle close to a right angle after passing through the straight portions 21b having different lengths and formed on the external connection terminal 21c. 21 _-4, 4 columns matrix of the respective jack terminal 21 _-1 to 21 _-4 tip of each jack contact 21a area in the free state when positioned and fixed only at each of the straight portions 21b equal pitch intervals The rectangular window 22a has a rectangular window 22a and is formed so as to be visible in the back.

Then, the four types of jack terminals 21 _-1 to 21 _-1 protruding from the bottom surface 22b of the insulator 22 when fixed to the insulator 22.
The external connection terminals 21c of 21 _-4 are arranged so as to be aligned in a four-row matrix with substantially equal pitch intervals.

Further, a tongue-shaped ground connection terminal 23 and a power supply connection terminal 24 are provided, for example, by screwing, in a terminal disposition area A formed so as to project at both ends in the longitudinal direction of the insulator 22. It is fixed by means.

In addition, in a predetermined region near the edge of the circuit board 1 on which the connector 2 and the insulator 22 are mounted, the terminals 21c are provided at respective positions corresponding to the external connection terminals 21c.
A through hole 1a that can be inserted is bored.

On the other hand, the plug connector 3 which is fitted to the connector 2 and which is shown by a broken line b, has an insulator 31 having a concave side sectional view and the jack contacts 21a on the bottom surface 31a of the insulator 31.
Plug terminals that are implanted in the respective positions corresponding to
It consists of 32.

When the inner surface of the peripheral wall 31b of the insulator 31 is used as a guide for the peripheral surface 22c of the insulator 22, the plug connector 3 is fitted to the insulator 22 and then to the connector 2, so that the connector 3 is grounded. A ground terminal (not shown) provided at a position corresponding to the connection terminal 23 first comes into contact with the ground connection terminal 23, and then at a position corresponding to the power supply connection terminal 24 of the connector 3. The power supply terminal which is not connected comes into contact with the terminal 24, and the plug contact 32a located at the end of each plug terminal 32 is thereafter connected to the jack contact 21a.

Therefore, the external connection terminals 21c of the connector 2 described above are inserted in correspondence with the through holes 1a of the circuit board 1 and joined from the back surface side of the board 1 by means such as soldering (4-
The connector 2 can be mounted on the circuit board 1 as shown in 2).

Therefore, by inserting the plug connector 3, it is possible to construct a board multi-connector having a power supply / ground terminal for active maintenance. Such connector 2
Then, when there is no need to connect in the power-on state, there is an advantage that it can be directly handled by simply removing the ground connection terminal 23 and the power connection terminal 24 described above.

[0014]

However, since a part of the mounting area as a connector for the circuit board is secured as a terminal disposition area for mounting the ground connection terminals and the power supply connection terminals, the ground connection is required. There is a problem that the positions of the power supply terminals and the power supply connection terminals are fixed, which causes a restriction on the circuit formation of the board, and when it is not necessary to connect the power supply state, that is, it is necessary to perform active maintenance. When the connector is not present, there is a problem that the number of signal connecting terminals and thus the terminal density cannot be increased, and it is not possible to meet the demand for increasing the number of signal terminals and the demand for higher density.

[0015]

SUMMARY OF THE INVENTION The above-mentioned problem is a board multi-connector mounted on the surface of a circuit board, wherein a plurality of signal connecting terminals of a plurality of types each have at least the same shape and form a free end. A signal block formed by being implanted inside the insulator so that respective contact regions are aligned in parallel in a matrix with a constant pitch without protruding from the outer surface of the block-shaped insulator,
A power supply connecting terminal having a contact area having a larger cross-sectional area than the signal connecting terminal and forming a free end longer than the signal connecting terminal at one end thereof is formed in the same shape as the contact area of the signal connecting terminal; A ground connection terminal, which is longer than the terminal and has a similar contact region, projects from an outer surface of an insulator in which at least each contact region is formed to have the same size as the insulator of the signal block. A power supply block formed inside the insulator so as to be aligned in parallel on a matrix connected to the matrix formed by the contact regions of the signal connection terminals without a box having a bottomed box. From the opening side, a plurality of the signal blocks or the power supply block or both are contacted with their insulating side surfaces in close contact with each other. Holes are formed in a matrix shape, which can be inserted from the side of the contact area, and into which the signal connection terminals from the outside that are inserted into the contact areas and connect to the contact areas can be inserted at the bottom surface positions corresponding to the respective contact areas in the inserted state It is achieved by a multi-connector for a substrate, which is configured to include at least the insulated housing.

[0016]

When the connector is configured such that the ground connection terminal and the power supply connection terminal can be arranged in the area where the mounting area as the connector for the circuit board is the signal connection terminal arrangement area, the ground connection terminal is formed. When terminals and power supply connection terminals are not required, the area can be used as a signal connection terminal arrangement area.

Therefore, in the connector according to the present invention, the mounting area as the connector for the circuit board is formed as the signal connection terminal arrangement area, and the signal connection terminal arrangement area is formed by the ground connection terminal and the power supply connection terminal. Each block is formed in the same size so as to be filled with a free combination of a coexisting power supply block and a signal block having only signal connection terminals to form a connector.

This means that the positions of the power supply block and the signal block in the signal connection terminal arrangement area can be freely changed, so that the circuit and the connector according to the customer's request can be easily constructed.

Therefore, it is possible to expect an improvement in productivity due to the expansion of the range of application as a connector and the increase in the density of mounting signal terminals.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a diagram for explaining a configuration example of a connector according to the present invention, FIG. 2 is a diagram showing a state when mounted on a circuit board, and FIG. 3 is a state for mounting on another circuit board. FIG.

In each case, as in the case of FIG. 4, the case where the jack side is mounted on the circuit board is taken as an example, and therefore the same symmetrical members and parts as in FIG. 4 are represented by the same symbols. The board multi-connector (hereinafter referred to as a connector) 4 mounted on the circuit board 1 of FIG. 4 in FIG. 1 has four types of jack terminals 21 _{-1 to} 21 _-4 described in FIG.
In the same manner as in FIG. 4, position a is positioned in a matrix of two rows with the same pitch interval as in the case of FIG. A signal block 42 fixedly formed, a power supply block 46 formed by positioning and fixing a power supply connection terminal 44 and a ground connection terminal 45 on an insulator 43 having the same outer shape as the block 42, and a width. The box-like bottomed box having a peripheral wall 47a formed so that the inner direction of the direction can guide the signal block 42 and the power supply block 46 at the height H thereof, and the bottom surface 47b of the box-shaped insulator shown in FIG. The square holes 22a equal to the square holes 22a of 22 are constituted by an insulating casing 47 formed in a four-row matrix shape with equal pitch intervals as in the case of FIG.

The internal signal block 42 includes jack terminals.
The area of the external connection terminals 21c of 21 _{-1 to} 21 _-4 is the rear surface of the insulator 41.
It is fixed so that it projects from the bottom surface 41b on the 41a side,
The height H of the signal block 42 is the peripheral wall of the insulating housing 47.
When inserted so as to match the width direction of 47a, the tip of the external connection terminal 21c projects from the outer surface 47a 'of the one side peripheral wall 47a of the insulating housing 47 by a predetermined distance.

Therefore, each jack contact 21a of the signal block 42 inserted in the insulating casing 47 is connected to the insulating casing 47.
Of the jacks 21 _{-1 to} 21 _{-4 and} the external connection terminals 21c of the jacks 21 _{-1 to} 21 _-4 when the insulating housing 47 is mounted on the circuit board 1.
Can be inserted to match.

In order to prevent the signal block 42 from falling off the insulating housing 47 when the signal block 42 is inserted into the insulating housing 47, a pillow-like protrusion is provided in the vicinity of the inner opening of the peripheral wall 47a of the insulating housing 47. Since 47c is formed, the signal block 42 can be moved in the longitudinal direction inside the insulating housing 47.

On the other hand, the outer shape of the insulator is equal to that of the signal block 42.
As described above, the new power supply block 46 has terminals 44 for power supply connection.
And the ground connection terminal 45 are positioned and fixed.
In this case, the power supply connection terminal 44 and the ground connection terminal 45 are
Use a board material wider than the jack terminal 21 to jack the terminal 21._-1~twenty one
_-Four2 preset types (in the case of the figure, 21_-1And 2
1 _-Four).
The positions corresponding to the square holes 22a adjacent to each other in the row direction of 7
Equivalent to jack contact 21a at two places with 1 pitch interval
New jack contacts 44a, 45a are formed and
Corresponds to the through hole 1a adjacent to the circuit board 1 in the column direction.
External connection terminals that are equal to the external connection terminal 21c at two locations
44b and 45b are formed respectively.

The positions of the jack contacts 44a, 45a in the power supply block 46 are both set closer to the plug side than the jack contact 21a of the signal connection terminal 21, and the two jacks are further arranged. Contact 44a,
Among the 45a, the jack contact 45 of the terminal 45 for ground connection
The a is located close to the plug side.

Therefore, like the signal block 42, the power supply block that can move in the longitudinal direction inside the insulating casing 47.
The jack contacts 44a, 45a of the power supply connection terminal 44 and the ground connection terminal 45 of 46 can be made to correspond to the square holes 22a of the insulating housing 47, and the plug connector 3 described in FIG. When this is done, it can be connected to the plug terminal 32 in the order of ground → power supply → signal.

When mounted on the circuit board 1, the external connection terminals 44b and 45b of the terminals 44 and 45 can be inserted into the through holes 1a of the board 1 in conformity with each other. (2-1) of FIG. 2 is a cross-sectional view of the power supply block 46 seen from the direction of arrow B in FIG. 1, and (2-2) is an example of the connector assembled as seen from the direction of arrow C. The appearance is shown.

In (2-1), the power supply block 46 described in FIG. 1 is mounted on the circuit board 1, but the power supply connection terminal 44 and the ground connection terminal 45 are positioned and fixed on the block 46. There is.

On the other hand, the plug connector 3 shown by the broken line b is shown in FIG.
It was explained in. The positions of the jack contacts 44a, 45a in the power supply block 46 are both set closer to the plug side than the jack contact 21a of the signal connection terminal 21, and the two jack contacts 44a, 45a are further arranged. Among them, the jack contact 45a of the ground connection terminal 45 is located close to the plug side.

Then, by fitting the plug connector 3, the plug terminal 32 can be connected in the order of ground->power-> signal as described above. On the other hand, depending on the circuit configuration, it may be necessary to insert two or more power supply blocks 46 into one connector.

At this time, as shown in (2-2), the power supply blocks 46 _-1 and 46 _-2 are inserted into the respective required positions and then the signal block 42 is inserted into the remaining area to match the required circuit configuration. The connector can be configured.

FIG. 3 exemplifies a case in which a plurality of (two in the figure) connectors 4 are mounted on the circuit board 5. For example, the first connector 4 _-1 has three power supply blocks 46 inserted therein. The second connector _4-2 is composed of the signal block 42 in its entirety.

Therefore, the signal connection terminal and the power supply connection terminal in the mounting area as a connector for the circuit board 5
The ground connection terminal can be freely configured according to the circuit configuration and customer requirements.

[0035]

As described above, according to the present invention, the range of application as a connector and the improvement of the mounting density of signal terminals are realized by making it possible to freely replace the power source / ground terminal with the arrangement position and the signal connection terminal. As a result, it is possible to provide a board multi-connector with improved productivity.

In the description of the present invention, the case where the connector mounted on the circuit board is a jack connector is taken as an example, but the same effect can be obtained by replacing the connector with a plug connector.

[Brief description of drawings]

FIG. 1 is a diagram illustrating a configuration example of a connector according to the present invention.

FIG. 2 is a diagram showing a state when mounted on a circuit board.

FIG. 3 is a diagram illustrating a mounting state on another circuit board.

FIG. 4 is a schematic configuration diagram illustrating an example of a conventional board multi-connector.

[Explanation of symbols]

1 Circuit board 1a Square hole 4 Board multi-connector 21, 21 _{-1 to} 21 _-4 Signal connection terminal 21a Jack contact 21c External connection terminal 22a Square hole 41 Insulator 41a Rear surface 41b Bottom surface 42 Signal block 44 Power connection terminal 44a Contact 44b External connection terminal 45 Ground connection terminal 45a Contact 45b External connection terminal 46 Power supply block 47 Insulation housing 47a Peripheral wall 47a ′ Outer surface 47b Bottom surface 47c Pillow-shaped protrusion

Claims (1)

[Claims] 1. A multi-connector for a board to be mounted on a surface of a circuit board, wherein a plurality of types of signal connecting terminals (21 _{-1 to} 21 _-4 ) are provided.
Inside the insulator, the contact (21a) regions having at least the same shape and forming the free end are aligned in parallel in a matrix with a constant pitch without protruding from the outer surface of the insulator. A signal block (42) formed by being implanted and having a larger cross-sectional area than the signal connecting terminals (21 _{-1 to} 21 _-4 ) and forming a free end longer than the one end of the signal connecting terminals. The contact area is the signal connection terminal (21 _{-1 to} 21 _-4 ).
The power supply connection terminal (44) formed in the same shape as the contact (21a) area and the ground connection terminal (45) further longer than the terminal (44) and in which a similar contact area is formed, each of the at least each contact (44a, 45a) regions the signal connection terminal without projecting from the outer insulating surface formed on the insulator equal magnitude of the signal blocks (42) (21 _-1 to 21 _{- 4} ) The power supply block (46) formed by being implanted inside the insulator so that it can be aligned in parallel on the matrix connected to the matrix formed by the contact (21a) region of ( ₄ ) From the opening side, a plurality of signal blocks (4
2) or the power supply block (46) or both of them can be inserted from the contact region side in a state where the side surfaces of the insulators are in close contact with each other, and the contact is placed at the bottom surface position corresponding to each contact region in the inserted state. Substrate characterized by comprising at least an insulating housing (47) formed in a matrix in which holes (22a) into which a signal connection terminal from the outside that is connected to and connected to the area is fitted can be inserted. For multi connector.