JPH08255661A - Connector - Google Patents

Abstract

PURPOSE: To minimize the damage of an electrode surface by attachment and detachment, in a connector for connecting a printed circuit board to a cable, prevent the floating of a fixed electrode by detachment and attachment, and also prevent the floating of a holding member at assembling. CONSTITUTION: A holding member 14 has a notched part 14b to hold the top end of a fixed electrode 16 in such a manner as to be movable. Protruding pieces 8a, 18b are formed on side edges of a groove part 14a, so that the fixed electrode 16 is engagingly locked by these protruding pieces. Further, at least one protruding piece is formed on the longitudinal side end of the holding member, and a hole part to be engaged with the protruding piece is provided on the longitudinal side end of a connector body, so that the protruding piece is engagingly fixed by the hole part at assembling.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector for connecting a printed circuit board inside a personal computer and an external unit to each other.

[0002]

2. Description of the Related Art Conventionally, a connector for connecting a printed circuit board and a printed circuit board or a printed circuit board and a cable is known. These connectors are composed of a male connector having a fixed electrode and a female connector having a movable electrode.

FIG. 9 is a conceptual partial perspective view of a conventional male connector, showing the arrangement of fixed electrodes. A plurality of groove portions 2 having a concave cross section are formed on the upper surface of the holding member 1, and fixed electrodes 3 each having a rectangular cross section are housed in the groove portions 2. A state in which such a male connector is inserted into a female connector is shown in a conceptual partial sectional view of FIG. The movable electrode 4 of the female connector has a body portion formed in a substantially S shape, and is held in a state of being urged downward in the drawing. When the male connector is inserted into the female connector, the fixed electrode 3 of the male connector enters while pushing the curved portion 4a of the movable electrode 4 of the female connector upward.
The connection is completed when both connectors reach the predetermined positions.

[0004]

By the way, when the male connector and the female connector are connected to each other, as shown in FIG. 10, hard metals directly collide with each other at the tips of both electrodes. The electrode surface may be damaged, resulting in poor contact.

A connector in which the upper surface of the tip of the fixed electrode 3 is covered with a part of a holding member to reduce the collision between metals is also considered. However, in this method, if the attachment and detachment is repeated, the holding member 1 in a portion contacting the movable electrode 4 is scraped off, and the abrasion powder may scatter on the electrode surface to cause poor contact between the electrodes.

Further, since the conventional fixed electrode 3 is only housed in the groove portion 2, the electrode may float or come off from the groove portion when repeatedly attached and detached or when an external force is applied. there were.

On the other hand, the movable electrode 4 of the female connector described above.
11 shows the groove portion 5 as shown in FIG. 11 which is a conceptual partial sectional view thereof.
It is housed in a holding member 6 formed with, and is mounted in the connector body (housing) 7 together with the holding member 6. By the way, when the movable electrode 4 is inserted into the groove portion 5 during assembly, the tip portion 4b of the movable electrode 4 becomes the end portion 6 of the holding member 6.
Since a is pressed in one direction (downward in the illustrated example), the tip of the holding member 6 is preloaded downward. Therefore, when the holding member 6 accommodating the movable electrode 4 is mounted in the connector main body 7, the tip of the holding member 6 may float up from the connector main body 7 due to preloading, and proper contact with the fixed electrode may not be obtained. .

A first object of the present invention is to provide a connector in which damage to the electrode surface due to attachment / detachment is minimized and floating of the fixed electrode due to attachment / detachment is prevented.

A second object of the present invention is to provide a connector which prevents the holding member from rising during assembly.

[0010]

A connector according to a first aspect of the present invention is to provide a plurality of fixed electrodes, a holding member for holding the plurality of fixed electrodes in a groove having a concave cross section, and a housing for mounting the holding member. In the connector having and, the tip of each fixed electrode is movably held, at least one projecting piece is formed on the side edge of each groove, and the fixed electrode is locked by the projecting piece.

A connector according to a second invention is a connector having a plurality of movable electrodes, a holding member for holding the plurality of movable electrodes in a groove having a concave cross section, and a housing for mounting the holding member. At least one projecting piece is formed at a side end in the longitudinal direction of the holding member, and a hole portion that engages with the projecting piece is formed at a side end in the longitudinal direction of the housing.

[0012]

In the connector according to the first aspect of the invention, when the male connector and the female connector are connected, the tip of the fixed electrode bends in the pressing direction when colliding with the movable electrode, so that when the metals collide with each other. The shock will be alleviated. In addition, since the upward movement (or downward movement) of the fixed electrode is restricted by the protruding piece formed on the side edge of the groove portion, repeated attachment / detachment,
Alternatively, the fixed electrode is prevented from rising when an external force is applied.

In the connector according to the second aspect of the present invention, when the holding member is mounted in the housing, the projecting piece formed on the holding member and the hole formed in the housing are engaged with each other, and the upper part (or the lower part) of the holding member is engaged. ), The holding member is prevented from rising from the housing.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the connector according to the present invention will be described below with reference to the drawings. In this embodiment, the shape, structure, size, arrangement, positional relationship and the like of each part are omitted or simplified as necessary.

FIG. 2 is a conceptual sectional view of a male connector 10 to which the connector according to the first invention is applied.

The connector body (housing) 11 has a substantially E-shaped cross section.
The cavity 12 is formed in a letter shape and is divided into upper and lower parts,
Holding members 14 and 15 are attached to 13. The holding members 14 and 15 have groove portions 14a and 15a having a concave cross section.
Is formed, and the fixed electrodes 16 and 17 are housed in the groove portions 14a and 15a, respectively. Also, the holding member 1
At the tips of the grooves 14a and 15a of Nos. 4 and 15, the notch 1 is formed.
4b, 15b are formed, and the fixed electrodes 16, 1 are formed.
7, the front end portions 16a and 17a are notched portions 14 respectively.
It is movably held in b and 15b.

On the other hand, as shown in FIG. 1, which is a conceptual partial perspective view of the male connector 10, a pair of protrusions for locking the fixed electrode 16 are formed at the longitudinal side edges of the groove 14a of the holding member 14. Pieces 18a and 18b are formed. Since the fixed electrodes 16 and 17 have vertically symmetrical shapes, the holding member 16 side will be described as an example here.

The above-mentioned protrusions 18a and 18b are the same as those shown in FIG.
As shown in the cross-sectional view of FIG. 3A, the side edge of the groove portion 14a is partially projected, and the side surface of the fixed electrode 16 that abuts on the protruding pieces 18a and 18b is a recess 16a formed by a notch (or crush) , 16b are formed, and the protrusions 18a, 18b are formed.
Is engaged with.

Although FIG. 1 shows an example in which projecting pieces are formed at both ends of the groove, at least one projecting piece is formed for one fixed electrode, and the fixed electrode is locked by this projecting piece. It goes without saying that the shape, number, and arrangement of the protruding pieces can be appropriately changed as long as they have a structure. For example, as shown in the conceptual cross-sectional view of FIG. 4, wedge-shaped protrusions 19a and 19b may be provided on the side edges of the groove 14a. Further, the protrusion may be a separate member attached to the side edge of the groove by a method such as adhesion or pressure bonding,
It may be formed over both ends of the groove.

When the male connector 10 shown in FIG. 1 and the female connector (not shown) are connected, the fixed electrodes 16 and 17 are connected.
Collides with a curved portion (see FIG. 10) of the movable electrode (not shown) on the opposite side, but the tip portions 16a and 17a of FIG.
Since it is held so as to be movable within 4b and 15b, when it collides with the movable electrode, it flexes in the pressing direction by the counter electrode and absorbs the impact. That is, according to the male connector 10 described above, since the impact when the electrodes collide with each other is mitigated by the bending of the electrode tips, the damage on the electrode surface when the attachment and detachment is repeated can be minimized. Become. Therefore, it is possible to prevent the occurrence of contact failure due to damage on the electrode surface as much as possible.

On the other hand, the fixed electrodes 16 and 17 have a groove portion 1
Not only is it housed in 4a and 15a, but also in FIG.
As shown in FIG. 4, the protrusions 18a and 18b formed on the side edges of the groove portions 14a and 15a are engaged. Therefore, even when the electrode is repeatedly attached and detached or when an external force is applied, the upward movement (or downward movement) of the electrode is regulated, so that the electrode can be prevented from being lifted from the groove and detached from the groove.

FIG. 5 is a conceptual sectional view of a female connector 20 to which the connector according to the second invention is applied.

The connector body (housing) 21 has a substantially U-shaped cross section, and holding members 22 and 23 are attached to the upper and lower inner peripheral walls, respectively. Holding member 2
Grooves 22a and 23a having a concave cross section are formed in the grooves 2 and 23, and the movable electrodes 24 and 25 are housed in the grooves. The body portions of the movable electrodes 24 and 25 are formed in a substantially S shape and are biased toward the center of the connector body 21. In addition, the tip portions 24a, 2 of each movable electrode
5a is in contact with the end portions 422b and 23b of the holding members 22 and 23, respectively, and is locked at the illustrated position when not connected.

FIG. 6 is a conceptual partial perspective view of the female connector 20 shown in FIG. 5, in which the connector body 21 and the holding member 2 are shown.
3 shows an engaging portion with 3. The movable electrodes 24, 2
Since 5 has a vertically symmetrical shape, the movable electrode 25 is shown here.
The side will be described as an example.

A projecting piece 26 formed integrally with the holding member 23 is disposed at one end of the holding member 23 in the longitudinal direction. Note that FIG. 6 shows a part thereof, and the projecting pieces are arranged at both ends of the holding member 23 in the longitudinal direction. On the other hand, a hole 27 that engages with the projecting piece 26 is formed at one end in the longitudinal direction of the connector body 21. The holes 27 are also arranged at both ends in the longitudinal direction. Note that FIG.
Then, the protruding piece 26 is 26a, 26b, the hole 27 is 27a,
Shown as 27b.

When the holding member 23 is mounted in the connector main body 21 in FIG. 6, the holding member 23 as shown in FIG.
The projecting piece 26 is inserted into the hole 27 of the connector body 21, and is fixed in a state where the projecting piece 26 and the hole 27 are engaged. Therefore, even if the end portion 23b of the holding member 23 is preloaded, the upward movement of the holding member 23 (downward in the holding member 22 of FIG. 5) is restricted, so that the holding member 23 is removed from the connector body 21. Lifting will be prevented.

FIG. 8 is a conceptual sectional view when the male connector 10 and the female connector 20 described above are connected. When the male connector 10 is inserted into the female connector 20, the fixed electrodes 16 and 17 of the male connector 10 are inserted into the female connector 2.
The movable electrodes 24 and 25 of 0 are pushed outward while approaching. Meanwhile, the fixed electrodes 16 and 17 and the movable electrode 2
Nos. 4 and 25 slide in contact with each other, and the connection is completed when both connectors reach a predetermined position.

If the specifications of the electrode parts are the same, a conventional female connector can be connected to the male connector 10 according to the first invention. Similarly, a conventional male connector can be connected to the female connector 20 according to the second invention.

Further, the connector according to the present invention is not only a connector for connecting the printed circuit board inside the personal computer and the external unit to each other, but also has electrodes arranged inside to contact each other to obtain electrical conduction. The connector can be generally applied.

[0030]

According to the connector of the first invention,
Since the tip of the fixed electrode is movably held,
Since the tip of the fixed electrode that collides with the movable electrode when connecting the connector is bent in the pressing direction, the impact when the metals collide with each other is mitigated. Therefore, the damage on the electrode surface due to the attachment / detachment can be minimized, and contact failure due to the damage on the electrode surface can be prevented as much as possible. Also, since the fixed electrode is locked by the protrusion formed on the side edge of the groove, the fixed electrode is restricted from moving upward (or downward), and the fixed electrode is lifted up due to detachment or the like. Can be prevented.

According to the connector of the second aspect of the present invention, since the projection formed on the holding member and the hole formed on the housing are engaged with each other, the holding member can be moved upward (or downward). As a result of being restricted, it is possible to prevent the holding member from rising from the housing during assembly.

[Brief description of drawings]

FIG. 1 is a conceptual partial perspective view of a male connector.

FIG. 2 is a conceptual cross-sectional view of a male connector.

3 is a sectional view taken along line AA of FIG.

FIG. 4 is a conceptual cross-sectional view showing another embodiment.

FIG. 5 is a conceptual sectional view of a female connector.

FIG. 6 is a conceptual partial perspective view of a female connector.

FIG. 7 is a conceptual partial perspective view of a female connector.

FIG. 8 is a conceptual cross-sectional view when a male connector and a female connector are connected.

FIG. 9 is a conceptual partial perspective view of a conventional male connector.

FIG. 10 is a conceptual partial cross-sectional view when a male connector and a female connector are connected.

FIG. 11 is a conceptual partial cross-sectional view of a female connector.

[Explanation of symbols]

 10 ... Male connector 11, 21 ... Connector main body (housing) 14, 15, 22, 23 ... Holding member 14b, 15b ... Notch part 18a, 18b ... Projection piece 16, 17 ... Fixed electrode 20 ... Female connector 24 , 25 ... Movable electrode 26 ... Projection piece 27 ... Hole

Claims (2)

[Claims] 1. A connector having a plurality of fixed electrodes, a holding member for holding the plurality of fixed electrodes in a groove having a concave cross section, and a housing for mounting the holding members, wherein a tip of the fixed electrode is movable. A connector characterized in that it is held freely and at least one projecting piece is formed on a side edge of the groove part, and the fixed electrode is locked by the projecting piece. 2. A connector having a plurality of movable electrodes, a holding member for holding the plurality of movable electrodes in a groove having a concave cross section, and a housing for mounting the holding member, wherein the holding member has a longitudinal direction. A connector characterized in that at least one projecting piece is formed at a side end, and a hole portion that engages with the projecting piece is formed at a side end in a longitudinal direction of the housing.