JPH07312264A - Connector - Google Patents

Abstract

PURPOSE:To provide a connector having electrostatic eliminating effect in which an air gap need not be provided on a printed board, and the change and extension of the air gap can be easily performed. CONSTITUTION:This connector is formed of an insulating resin connector housing 10, an insulating resin terminal holder 20 mounted on the connector housing 10 in such a manner as to be attachable and detachable, a signal terminal 30 installed to the terminal 20, and a gland terminal 40 having a gland plane 41 continued thereto. The terminal holder 20 has a plurality of installing holes 23 for installing the signal terminal 30 formed thereon, and an installing slit 24 for inserting and fixing the gland plane 41 is formed in the adjacent position just under each installing hole 23. The terminal holder 20 also has a discharge hole 25 for allowing each installing hole 23 to communicate with the installing slit 24, and an air gap is formed between the signal terminal 30 installed by the discharge hole 25 and the gland plane 41.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is useful for connectors used in various electronic devices such as on-vehicle electronically controlled fuel injection devices and ABS (antilock brake system brake) units, and particularly effective for noise due to static electricity. To a connector that can be removed.

[0002]

2. Description of the Related Art Conventionally, in an electronic unit mounted on an automobile or the like, in particular, in an electronic unit in which static electricity may be accumulated through external wiring, various measures can be considered as protection of electronic parts against such static electricity. ing. As one of them, an air gap is provided on the substrate for the purpose of reducing noise protection components, downsizing of products, and the like, which will be described below.

As shown in FIG. 7, when the connector 50 is mounted on the printed circuit board A, a signal system terminal 52 extending from a connector housing 51 mounted on the printed circuit board A.
And the ground terminal 53 are passed through the through hole a formed in the printed circuit board A, and the signal system terminal 52 and the ground terminal 53 are respectively provided on the land portions of the signal system pattern b and the ground pattern c printed on the back surface of the printed circuit board A. Generally, it is electrically connected by soldering.

By the way, as a method of removing static electricity accumulated in the signal system terminal 52 in the connector thus connected, as shown in FIG. 8, the ground pattern c and the signal system pattern b are brought close to each other. The solder resist (the shaded portion in the drawing) is removed not only on the land portions b ′ and c ′ of the patterns b and c but also on the part of the ground pattern c that is close to the signal system pattern b. Thus, the air gap 1 as the electrostatic discharge gap is configured. As a result, the static electricity applied to the signal system terminal 52 is discharged in the air gap l, and the electric energy can be released to the ground pattern c having a low impedance. The influence of electrostatic energy can be reduced.

In Japanese Utility Model Laid-Open No. 62-198685, as shown in FIG. 9, a connection terminal 63 and a common ground terminal plate 64 are provided so that an air gap 65 is formed between them. There is disclosed a cathode tube socket 60 that is housed by being sandwiched by 61 and a lid 62.

[0006]

However, in the case where the connector 50 is mounted on the printed board A as described above, the pattern on the board is used to form the air gap, so that the board is formed on the board. When forming the signal system pattern and the ground pattern, there arises a problem that the layout is restricted to some extent.

Further, in the cathode tube socket 60, since a predetermined air gap is fixedly formed in advance in the socket, the air gap is provided only at a necessary place, or the air gap is expanded later. The problem arises that it becomes difficult.

SUMMARY OF THE INVENTION An object of the present invention is to provide a connector having an effect of removing static electricity, which does not require an air gap on a printed circuit board and can be easily changed or added.

[0009]

In order to solve the above problems, the present invention provides a connector in which a ground terminal having a ground plane and a signal terminal are mounted in a connector housing made of an insulating material. In the above, the signal system terminal and the ground plane are brought close to the connector housing through a partition member formed of a detachable insulating material, and the partition member is discharged from the signal system terminal to the ground plane. The holes were made.

The partition member can be formed by a ground adjusting piece that can be inserted into and removed from the connector housing.

A ground terminal provided with a connector housing made of an insulating material, a terminal holder made of an insulating material detachably attached to the connector housing, and a ground plane attached to the terminal holder. And a signal system terminal, and the terminal holder includes a mounting hole for the signal system terminal and a mounting slit for the ground terminal that accommodates and fixes the ground plane, and the mounting hole and the mounting slit are mutually connected. It may be a connector which is provided in the vicinity of and is communicated with each other through a discharge hole.

[0012]

In each of the connectors constructed as described above, static electricity accumulated in the signal system terminal is discharged in the discharge hole formed in the partition member or the terminal holder with the ground plane of the ground terminal and the signal system terminal. To be discharged. Further, when changing the position of the air gap or adding another, the position of the discharge hole is changed, or replacement is performed with the added partition member or terminal holder.

[0013]

EXAMPLES Examples will be described below with reference to the drawings. As shown in FIGS. 1 and 4, the connector 1 includes a cylindrical connector housing 10 made of an insulating resin and a terminal holder 2 made of an insulating resin detachably attached to the connector housing 10.
0 and the signal system terminal 30 mounted on the terminal holder 20.
And the ground terminal 4 connected to the ground plane 41
0, and the connector housing 10
Is directly attached to the printed circuit board A, and the signal system terminal 30
Also, the ground terminal 40 is electrically connected to the land portion of the pattern of the printed circuit board A by soldering.

The connector housing 10 has an opening 11 formed on the front surface for receiving a part of the terminal holder 20, and a groove 12 and a locking portion 13 for attaching and detaching the terminal holder 20 are formed on both sides. ing.

The terminal holder 20 is provided with a projecting portion 21 fitted into the opening 11 of the connector housing 10 and lock claws 22 provided on both sides of the projecting portion 21, respectively. When the protruding portion 21 is inserted into the opening 11 along the groove 12, the lock claw 22 engages with the locking portion 13 and the terminal holder 20 is fixed to the connector housing 10. The terminal holder 20 can be easily removed from the connector housing 10 by pushing the lock claw 22 outward and pulling it out of the connector housing 10.

As shown in FIGS. 3 and 4, a plurality of mounting holes 23 for mounting the signal system terminals 30 at equal intervals are formed in parallel in the terminal holder 20. One end of the signal system terminal 30 projects into the connector housing 10 to form a connector terminal, and the other end side extends downward on the front surface of the terminal holder 20 and penetrates the through hole a of the printed circuit board A. There is.

Further, as shown in FIG. 3, the terminal holder 20 is provided with a mounting slit 24 for inserting and fixing a ground plane 41 connected to the ground terminal 40 at a close position immediately below each of the mounting holes 23. In the mounted state, the ground terminals 40 bent downward in front of the ground plane 41 are arranged side by side with the signal system terminals 30 with a space between the signal system terminals 30.

The ground plane 41 is provided with a plurality of lance portions 41a whose front side is cut and raised downward corresponding to the signal system terminals 30, and the mounting slit 24 has the lance portions 41a. Is formed with a locking projection 24a that engages with the ground plane 41 to perform a retaining function.

Further, as shown in FIG. 4, the terminal holder 20 is provided with a discharge hole 25 which communicates the respective mounting holes 23 with the mounting slits 24, and the signals mounted by the discharge holes 25 are provided. System terminal 30 and ground plane 4
An air gap is formed between the two. Therefore, even if static electricity is accumulated in the signal system terminal 30 through the external wiring, it is discharged to the low-impedance ground plane 41 in this air gap portion, and the influence of electrostatic energy on the electronic components connected to the connector 1 is affected. Can be made smaller.

When it is desired to secure an air gap only for a specific signal system terminal 30, the terminal holder 20 is used.
Instead, another terminal holder provided with the discharge hole 25 may be attached only to the mounting hole 23 of the required signal system terminal 30, which is extremely versatile. In this respect, the same applies when an air gap is added.

5 and 6 show another embodiment.
In this connector 2, a signal system terminal 30 'and a ground terminal 40' in which a ground plane 41 'is directly connected are mounted on a connector housing 10'. In the connector housing 10 ′, the mounted signal system terminal 3
0'and the ground plane 41 'are close to each other, and a ground adjusting plate as a partition member made of an insulating material and inserted between the two by a slit 11' formed on the side surface of the connector housing 10 '. It is divided by 20 '. As with the terminal holder 20 of the above-described embodiment, each of the signal system terminals 30 'is attached to the ground adjusting plate 20'.
Corresponding to, a discharge hole 25 'is formed from each signal terminal 30' to the ground plane 41 ',
The discharge holes 25 'form an air gap between the signal system terminal 30' and the ground plane 41 '.

Therefore, the connector 2 is also the connector 1
Similarly to the above, the air gap can be easily changed or added simply by replacing the partition member 20 '.

[0023]

As described above, the connector of the present invention is
Since the air gap is formed by providing a detachable partition member having a discharge hole between the signal system terminal and the ground plane, there is no need to provide an air gap on the printed circuit board, and the partition The air gap can be easily changed or expanded by replacing the members.

Similarly, in a connector provided with a terminal holder, an air gap is formed in the terminal holder, and the air gap can be easily changed or expanded by replacing the terminal holder.

[Brief description of drawings]

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

FIG. 2 is an exploded perspective view showing the above connector.

FIG. 3 is a front view showing the above connector.

FIG. 4 is a cross-sectional view showing the above connector.

FIG. 5 is an exploded perspective view showing another embodiment.

FIG. 6 is a partial detailed view of the above.

FIG. 7 is a perspective view showing a conventional example.

FIG. 8 is a bottom view of the above.

FIG. 9 is a cross-sectional view showing another conventional example.

[Explanation of symbols]

 1, 2 Connector 10, 10 'Connector housing 20 Terminal holder 20' Ground adjustment plate 21 Projection part 22 Lock claw 23 Mounting hole 24 Mounting slit 25, 25 'Discharge hole 30, 30' Signal system terminal 40, 40 'Ground terminal 41, 41 'Ground plane

Claims (3)

[Claims] 1. A connector in which a ground terminal in which a ground plane is continuously provided and a signal system terminal are mounted in a connector housing formed of an insulating material, wherein the signal system terminal and the ground plane are provided in the connector housing. On the other hand, a connector characterized in that a partition member made of a detachable insulating material is placed in close proximity to the partition member, and a discharge hole communicating from the signal terminal to the ground plane is provided in the partition member. 2. The connector according to claim 1, wherein the partition member is formed by a ground adjusting piece that can be inserted into and removed from the connector housing. 3. A ground terminal provided with a connector housing made of an insulating material, a terminal holder made of an insulating material detachably attached to the connector housing, and a ground plane attached to the terminal holder. And a signal system terminal, wherein the terminal holder includes a mounting hole for the signal system terminal and a mounting slit for the ground terminal for housing and fixing the ground plane, and the mounting hole and the mounting slit are mutually connected. A connector that is provided close to and is connected to each other by a discharge hole.