JP2842814B2 - Electrical connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a semiconductor device which is mounted on different substrates, and connects these substrates to each other.
Electrical connector comprising two connectors.

[0002]

2. Description of the Related Art Conventionally, electrical connectors for connecting plate-shaped printed wiring boards (hereinafter, referred to as PCBs) to each other have been widely used. This electrical connector is provided with a receptacle connector and a plug connector that are mounted on different boards and are fitted to each other, and a PC is provided by fitting the receptacle connector and the plug connector.
B are connected. Each of the receptacle connector and the plug connector includes a plurality of contacts and a housing in which the contacts are arranged at a predetermined pitch. Normally, the contacts arranged in the housing of the receptacle connector have a spring property. When the receptacle connector and the plug connector are fitted, the contacts arranged in the respective housings come into contact with each other at a predetermined pressure due to the spring property. Electrically connected.

[0003] In recent years, there has been a tendency for contacts to be narrowed to narrow the arrangement pitch of the contacts in order to reduce the size of the electrical connector. Further, when the boards are connected to each other with the electrical connector facing each other, there is also a tendency to shorten the contacts in order to shorten the distance between the connected boards. As described above, when the contact is made thinner or shorter, the spring property of the contact is reduced, the contact pressure between the contacts is reduced, and the electrical connection may be insufficient.

[0004]

[0008] The present invention has been made in view of the above circumstances, and purpose thereof is to provide an electrical connector which can be contacted with a high contact pressure contact with each other even when or shortened thin contacts.

[0005]

[0006]

This onset Ming electrical connector for achieving on Symbol purpose Means for Solving the Problems], it first及 beauty second contact in contact with each other are placed respectively, first及 beauty Second
The first及 beauty second connectors respectively mounted in the substrate
Ingredients example, connected to each other said first and second substrates by fitting the first and second connectors to each other, wherein
The first contact is a housing of the first connector
, The center wall surface of the housing is arranged in two rows
A first spring portion substantially in contact with the second contact;
A second spring portion having a contact portion that contacts the
The second contact is a housing of the second connector.
In the electrical connector that will be arranged in two rows in the longitudinal direction at the position of the side wall having the said second of said first contact
The spring part extends from the part to be press-fitted and fixed to the fitting side,
The housing of the second connector is provided at the tip of the side wall.
Engages the housing of the first connector at an end;
The engagement position is determined by the contact between the first and second contacts.
It is characterized in that it is configured to be located away from the touch position .

Here, the electric connector according to the present invention is described.
The second contact of the first contact
The contact portion that comes into contact with the port is press-fitted and fixed from the contact portion.
Than the length of the second spring portion up to the portion
The first spring from a portion to a contact portion that contacts the wall surface
It is preferable that the portion is placed at a position where the length of the portion becomes long.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of an electric connector according to the present invention will be described with reference to the drawings. [First Embodiment] A first embodiment of the electrical connector of the present invention will be described with reference to FIGS.

FIGS. 1 and 2 show a receptacle connector (an example of a first connector according to the present invention) of the electrical connector, and FIGS. 3 and 4 show a plug connector (a first connector according to the present invention) of the electrical connector. FIG. 5 shows a state in which the receptacle connector and the plug connector are fitted. The electrical connector 10 includes a receptacle connector 20 and a plug connector 6 that fit together.
0 is provided. The receptacle connector 20 is connected to the substrate 12
, And the plug connector 60 is mounted on the board 14. When the receptacle connector 20 and the plug connector 60 are fitted, as shown in FIG. 5, the boards 12 and 14 are connected to face each other.

The receptacle connector 20 has a housing 30 and a contact 40 (an example of a first contact according to the present invention). The contact 40 is fixed to the housing 30 by a press-fitting projection 41 and
Are arranged in two rows in the longitudinal direction. Housing 30
Has posts 32, 34 inserted into the post holes 12a, 12b of the substrate 12, respectively, and fixing hardware 36, which is soldered to the fixing pads 12c of the substrate 12.
A central wall 38 extending in the longitudinal direction of the housing 30 is formed at a central portion in the width direction of the housing 30, and the central wall 38 has two wall surfaces 38a and 38b. The contact 40 has two bent portions 42a, 4
An S-shaped first spring portion 42 having 2b and a contact 80 described later (an example of a second contact according to the present invention)
A second spring portion 44 having a contact portion 44a for contacting the contact portion 82 of the substrate 12, and a tine portion 46 soldered to the pad 12d of the substrate 12 are formed. The contact portion 42c of the first spring portion 42 is almost in contact with the wall surfaces 38a and 38b, and the second spring portion 44 is in contact with the contact 8 as described above.
The contact portion 82 contacts the zero contact portion 82. The contact 40 is formed by punching out and bending a single metal plate (for example, a copper alloy plate such as phosphor bronze) having excellent conductivity and spring properties. Is about 3.00 mm.

The plug connector 60 has a housing 70 and contacts 80. The contacts 80 are arranged in two rows in the longitudinal direction of the housing 70. The housing 70 includes posts 72 and 74 inserted into the post holes 14 a and 14 b of the board 14, respectively, and a fixing bracket 76 that is soldered to the fixing pads 14 c of the board 14. Also, on both sides in the width direction of the housing 70,
A side wall 78 extending in the longitudinal direction of the housing 30 is formed. The contact 80 has a contact portion 82 that contacts the contact portion 44a of the second spring portion 44 of the contact 40, and a tine portion 84 that is soldered to the pad 14d of the substrate 14. The contact 80 is formed by punching and bending a single metal plate (for example, a copper alloy plate such as phosphor bronze) having excellent conductivity and spring properties. Is about 3.00 mm.

When the receptacle connector 20 and the plug connector 60 are fitted, as shown in FIG.
The first and second spring portions 42, 44 of the contact 40 are sandwiched between the contact portion 38b and the contact portion 82 of the contact 80.
The first spring portion 42 of the contact 40 has the wall surfaces 38a, 3
8b, and receives a repulsive force from the wall surfaces 38a, 38b. On the other hand, when the contact portion 44 a of the second spring portion 44 is pressed against the contact portion 82 of the contact 80, the first and second spring portions 42 and 44 receive a repulsive force from the contact 80. Thus, in the state where the receptacle connector 20 and the plug connector 60 are fitted, the contact 40
Is sandwiched between the wall surfaces 38a and 38b and the contact 80 and strongly pressed against both. Therefore, even if the contact is made thinner or shorter in order to narrow the arrangement pitch of the contact, the contact 40 and Contact 8
0 can be contacted with a high contact pressure. Moreover, since the first and second spring portions 42 and 44 of the contact 40 are arranged in two rows so as to be symmetrical with respect to the other row, the repulsive force from the wall surfaces 38a and 38b and the contact 80 is small. The contacts 40 and the contacts 80 can be brought into contact with a balanced and high contact pressure between the rows, and an electrical connector with reliable electrical connection can be obtained. Second Embodiment An electrical connector according to a second embodiment of the present invention will be described with reference to FIGS.

The electrical connector of the second embodiment is characterized by the shape of the plug connector, and the receptacle connector is the same as that of the first embodiment. Therefore, the plug connector will be described here. The plug connector 90 includes a housing 100 and a contact 120. The contacts 120 are arranged in two rows in the longitudinal direction of the housing 100. The length of the contact 120 is longer than that of the contact 80 of the plug connector 60 shown in FIG. 3, and the length is about 9.00 mm. The housing 100 includes posts 102 and 104 inserted into the post holes 14 a and 14 b (see FIG. 3) of the board 14, respectively, and a fixing bracket 106 that is soldered to the fixing pads 14 c of the board 14. Side walls 108 extending in the longitudinal direction of the housing 100 are provided on both sides in the width direction of the housing 100.
Are formed. The side wall 108 has an opening 108a
This opening 108 a is a feature of the plug connector 90. The reason for forming the opening 108a will be described below.

The housing 100 is usually made of resin, and is formed by injection molding using a mold corresponding to the shape of the housing 100. The contact 120 is connected to the housing 10
After the 0 is made, it is inserted into the housing 100 and arranged. The space into which the contact 120 is inserted is formed by using an elongated pin called a core pin.
Formed on the injection molded wall of the housing. This core pin is pulled out of the housing 100 after the housing 100 is injection-molded. When the contact 120 is long, the core pin naturally becomes long and may be bent when the core pin is pulled out from the housing 100. Therefore, even if the contact 120 is long, in order to shorten this core pin,
An opening 108a was formed in the side wall 108 of the housing 100. When the opening 108a is formed in this manner, a mold can be used for a portion corresponding to the opening 108a during injection molding. On the other hand, contact 12
Two short core pins inserted from above and below are used in a portion corresponding to a space into which 0 is inserted. As described above, when a space for inserting a long contact is formed by using two short core pins, bending of the core pin can be prevented when the core pin is pulled out of the housing 100 after the housing 100 is injection-molded. [Third Embodiment] A third embodiment of the electrical connector of the present invention will be described with reference to FIGS.

The features of the electric connector of the third embodiment are the shield plate attached to the widthwise side surface of the housing of the plug connector and the shape of the ground contact among the contacts of the receptacle connector. The electrical connector according to the third embodiment includes a receptacle connector 130 and a plug connector 150 having substantially the same shapes as the receptacle connector 20 and the plug connector 60 of the electrical connector 10 according to the first embodiment shown in FIGS. . Ground contacts 134 and signal contacts 136 are arranged in a housing 132 of the receptacle connector 130. On the other hand, the housing 15 of the plug connector 150
2 also includes a ground contact 154 and a signal contact 156.
Are arranged. In addition, shield plates 170 are attached to both side surfaces 158 in the width direction of the housing 152 of the plug connector 150, respectively. This attachment causes the housing 152 and the shield plate 170 to slide relatively to each other, and the protrusions 158 formed on both side surfaces 158 respectively.
a to the narrow portion 17 of the slot 172 of the shield plate 170
2a. Shield plate 170
Has a double-sided beam contact piece S on which a dimple 174 is formed.
1 and a tongue piece S2 for elastic contact with the ground contact 154 of the plug connector 150 are formed.

When the receptacle connector 130 and the plug connector 150 are fitted together, the doubly supported beam contact piece S1 of the shield plate 170 is connected to the extension 134a of the ground contact 134.
And the tongue piece S2 elastically contacts the root of the tine portion 154a of the ground contact 154. The contact portion between the tongue piece S2 and the ground contact 154 may be soldered if necessary. In the actual assembling process, the ground contact 154 is used.
Since the tine portion 154a is soldered to the substrate 14,
The tongue piece S2 and the tine portion 1 of the ground contact 154 are utilized by utilizing the heating when the plug connector 150 is mounted on the substrate 14.
54a can be soldered. Also, the receptacle connector 130 has a protruding portion 138 that ensures the contact between the extension 134a of the ground contact 134 and the dimple 174.
The protruding portion 138 is received in the recess 160 of the plug connector 150.

As shown in FIG.
6 and 156 do not contact the shield plate 170, the housing 152 of the plug connector 150 has a protruding portion 159, and the housing 132 of the receptacle connector 130 has a groove 161 for receiving the protruding portion. I have. The assembling process includes the plug connector 15
0, the shield plate 170 is attached to the housing 152,
Thereafter, the contacts 154 and 156 are connected to the housing 152.
It is done by typing. Soldering is plug connector 15
This is performed only when 0 is attached to the substrate. Here, dimples 174 are formed on the shield plate 170,
Although the dimple 174 is brought into contact with the ground contact 134, the dimple 174 may not be formed. As described above, according to the electrical connector of the third embodiment, the ground contacts 134 and 154 can be easily connected by attaching one shield plate 170 to the housing 152 of the plug connector 150. Fourth Embodiment FIG. 11 shows a fourth embodiment of the electrical connector of the present invention. The difference between this electric connector and the electric connector of the third embodiment lies in the shape of the shield plate.
The shield plate 180 of the electrical connector according to the fourth embodiment includes:
No convex portion is formed on the doubly supported contact piece S1 so that the doubly supported contact piece S1 is hardly bent. In addition, dimple 1
74 (see FIG. 8) is not formed. This shield plate 180 has the same effect as the shield plate 170 of FIG. Fifth Embodiment A fifth embodiment of the electrical connector of the present invention will be described with reference to FIGS.

FIGS. 12 and 13 show a plug connector of the electrical connector, and FIGS. 14 and 15 show a receptacle connector of the electrical connector. The electrical connector includes a plug connector 200 and a receptacle connector 2 which are fitted to each other.
60 is provided. The plug connector 200 and the receptacle connector 260 are respectively different substrates (not shown).
Implemented in

The plug connector 200 is connected to the housing 21
0, a signal contact 220 and a ground contact 230 arranged in two rows in the longitudinal direction of the housing 210.
It has. Both sides 21 in width direction of housing 210
A shield plate 240 is attached to each of 0a. In this mounting, the housing 210 and the shield plate 240 are relatively slid, and the protrusions 211 formed on both side surfaces 210a are respectively inserted into the slots 2 of the shield plate 240.
This is performed by fitting into the thin portion of the reference numeral 42. FIG.
As shown in (b), the portion of the shield plate 240 where the ground contacts 230 are arranged is the housing 2
10 and is in contact with the ground contact 230. On the other hand, the portion of the shield plate 240 where the signal contacts 220 are arranged is formed at the lower end of the side surface 210a of the housing 210 as shown in FIG.
Not in contact with Further, the lower portion in the longitudinal direction of the shield plate 240 goes around the end face in the longitudinal direction of the housing 210, and a dimple (projection) is formed at the tip of the portion that goes around. The dimple is provided with a reinforcing metal fitting 250 fixed to the longitudinal end of the housing 210.
Is in contact with the back of The reinforcing bracket 250 reinforces the attachment of the plug connector 200 to the board. At both ends of the housing 210, posts 214 to be inserted into post holes of a substrate (not shown) are formed.

The receptacle connector 260 includes a housing 270, and signal contacts 280 and ground contacts 290 arranged in two rows in the longitudinal direction of the housing 270. Shield plates 300 are attached to both side surfaces 270a in the width direction of the housing 270, respectively. This attachment is performed by sandwiching a part of the shield plate 300 between the housing 270 and the ground contact 290, as shown in FIG.
Thereby, the shield plate 300 is connected to the ground contact 290.
Contact On the other hand, as shown in FIG. 15A, the signal contact 280 is not in contact with the shield plate 300.

The flexible arm 30 is provided on the shield plate 300.
4 are formed. The arm 304 comes into contact with the doubly supported beam contact portion 244 of the shield plate 240 shown in FIG.
Thereby, shield plate 240 and shield plate 300 are electrically connected. In addition, the shield plate 300 wraps around the longitudinal end surface of the housing 270, and a flexible arm 306 is also formed on the wrapped portion.
A projection (not shown) protruding toward the housing 270 is formed at the tip of the arm 306.
The protrusion of the arm 306 enters the hole 312 of the reinforcing metal fitting 310 fixed to the longitudinal end of the housing 210 and contacts the reinforcing metal fitting 310. To facilitate this contact, a recess 314 is formed in the upper part of the reinforcing metal fitting 310. In this way, by bringing the reinforcing metal fitting 310 into contact with the shield plate 300,
The reinforcing metal fitting 310 can be used as a ground. Note that, at both ends of the housing 270, posts 274 to be inserted into post holes of a substrate (not shown) are formed.

According to the electrical connector of the fifth embodiment, the shield plate 240 is connected to the housing 2 of the plug connector 200.
Since each of the ground contacts 230 is attached to both side surfaces 210a, each ground contact 230 can be easily grounded. Further, the shield plate 300 is connected to the housing 27 of the receptacle connector 260.
Since each of the ground contacts 290a is attached to both side surfaces 270a, each ground contact 290 can be easily grounded.

[0023]

As described above, according to the first electrical connector of the present invention, when the first and second connectors are fitted to each other, the first contact is provided on the housing of the first connector. It is sandwiched between the wall surface and the second contact. In this sandwiched state, the first spring portion of the first contact is pressed against the wall surface and receives a repulsive force from the wall surface. Further, when the second spring portion of the first contact is pressed against the second contact, the first and second spring portions are pressed.
Receive a repulsive force from the second contact.
That is, in a state where the first and second connectors are fitted to each other, the first contact is sandwiched between the wall surface and the second contact and is strongly pressed against both. As a result, even if the contacts are made thinner or shorter in order to narrow the arrangement pitch of the contacts, the first
And the second contact can be brought into contact with a high contact pressure. Moreover, the first contact is the first contact.
And the second spring portions are arranged in two rows so as to be symmetric with respect to the other row. For this reason, the repulsive force from both the wall surface and the second contact is balanced between each row, and the first contact and the second contact can be brought into contact with a well-balanced high contact pressure, so that the electrical connection can be reliably performed. Electrical connector can be obtained.

[0024]

[Brief description of the drawings]

1A and 1B show a receptacle connector of an electric connector according to a first embodiment of the present invention, wherein FIG. 1A is a plan view, FIG. 1B is a front view, FIG. 1C is a side view, and FIG. FIG. 4 is a plan view schematically showing a substrate on which is mounted.

FIG. 2 is a sectional view taken along line AA of the receptacle connector shown in FIG.

3 (a) is a plan view, FIG. 3 (b) is a front view, FIG. 3 (c) is a side view, and FIG. 3 (d) is a board on which the plug connector is mounted. It is a top view which shows the outline of.

FIG. 4 is a cross-sectional view of the plug connector shown in FIG. 3 along the line BB.

FIG. 5 is a cross-sectional view showing a state where the receptacle connector of FIG. 1 and the plug connector of FIG. 3 are fitted.

FIGS. 6A and 6B show a plug connector of an electric connector according to a second embodiment of the present invention, wherein FIG. 6A is a plan view, FIG.
(C) is a side view.

FIG. 7 is a sectional view taken along line AA of the plug connector of FIG. 6;

FIG. 8 is a front view showing a plug connector of an electric connector according to a third embodiment of the present invention.

9 is a cross-sectional view showing a state where the plug connector of FIG. 8 is fitted with the receptacle connector, and the ground contact of the plug connector and the ground contact of the receptacle connector are in contact with each other.

10 is a cross-sectional view showing a state where the plug connector of FIG. 8 is fitted with the receptacle connector, and the signal contacts of the plug connector and the signal contacts of the receptacle connector are in contact with each other.

FIG. 11 is a front view showing a plug connector of an electric connector according to a fourth embodiment of the present invention.

12A and 12B show a plug connector of an electric connector according to a fifth embodiment of the present invention, wherein FIG. 12A is a plan view and FIG. 12B is a front view.

FIGS. 13A and 13B show the plug connector of FIG.
-A sectional view, (b) BB sectional view, (c) is a side view.

14A and 14B show a receptacle connector of an electric connector according to a fifth embodiment of the present invention, wherein FIG. 14A is a plan view and FIG. 14B is a front view.

FIG. 15 shows the receptacle connector of FIG. 14;
(A) is a CC sectional view, (b) is a DD sectional view, and (c) is a side view.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Electric connector 12, 14 Substrate 20, 260 Receptacle connector 30 , 70 Housing 38a, 38b Wall surface 40, 80 Contact 42 First spring part 44 Second spring part 60, 200 Plug connector 78 Side wall 220, 280 Signal contact 230 , 290 Ground contact 240,300 Shield plate

Claims (2)

(57) [Claims] 1. A first及 beauty second contact in contact with each other is placed in each example first及 beauty tool a second connector which is respectively mounted on the first及 beauty second substrate, the First
And the first connector and the second board are connected to each other by fitting the first connector and the second connector together.
Connectors are arranged in two rows in the housing of the first connector.
And substantially contact the wall surface of the central wall of the housing.
A first spring portion that contacts the second contact;
A second spring portion having a contact portion, and the second contour
The side wall of the housing of the second connector is
In the electrical connector that will be arranged in two rows in the longitudinal direction at the position of said second spring portion of the first contact is press-fitted
The housing of the second connector extends from the portion to be fitted to the mating side,
Engages the housing of the first connector at an end;
The engagement position is determined by the contact between the first and second contacts.
An electrical connector, wherein the electrical connector is configured to be away from a touch position . 2. The method according to claim 1, wherein said first contact comprises said second contact.
The contact portion that comes into contact with the contact of
From the length of the second spring portion up to the portion to be fixed
Between the contact portion and the contact portion that contacts the wall surface.
2. The electrical connector according to claim 1, wherein the electrical connector is located at a position where the length of the first spring portion is increased .