JPH11102757A - Electrical connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To connect boards facing opposite to each other and allow ground contacts to be grounded appropriately by providing at least one of first and second contacts making contact with each other, with a shielding plate making contact with the first or second contact. SOLUTION: Ground contacts 134 formed of S-shape spring parts are fitted to both sides of a center wall in a housing 132 to constitute a receptacle connector 130. This receptacle connector 130 is mounted on a board through tine parts of base parts of the earth contacts 134. A plug connector 150 with plate- like ground contacts 154 fitted along the inside of both side walls of the housing 132 is mounted to a board 14 through tine parts 154a, and shielding plates connected to the ground contacts 154 through tongue pieces S2 are provided along both side faces 158 of the sidewalls. Both of these connectors are fitted to each other to which are dimples 174 for contact pieces S1 of the shielding plates into contact with the ground contacts 134, thus connecting both boards to each other.

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]

By the way, some of a plurality of contacts arranged in this kind of electrical connector for connecting the boards facing each other are usually used as ground contacts. This ground contact
For example, it is connected to a ground wiring formed on the substrate. As described above, if a ground wiring connected to a ground contact is formed on a substrate, an extra wiring is required accordingly, but an appropriate technique for grounding the ground contact is not known. SUMMARY OF THE INVENTION An object of the present invention is to provide an electrical connector that can connect substrates facing each other and that can appropriately ground an arranged ground contact.

[0004]

In order to achieve the above object, an electric connector according to the present invention comprises a plurality of first connectors which are in contact with each other.
A first connector and a second connector mounted on a first board and a second board, respectively, in which a first contact and a second contact are arranged, respectively. (1) At least one of the plurality of first contacts and at least one of the plurality of second contacts are in contact with each other. (2) At least one of the first and second connectors has a shield plate that contacts the first or second ground contact. Is what you do.

[0005]

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. 1 and 2
Shows 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 (an example of a second 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.

[0006] The electrical connector 10 includes a receptacle connector 20 and a plug connector 60 that are fitted together. The receptacle connector 20 is mounted on the substrate 12,
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 substrates 12 and 14 are connected to face each other. The receptacle connector 20 includes 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 extends in the longitudinal direction of the housing 30. Arranged in columns. The housing 30 includes posts 32 and 34 inserted into the post holes 12a and 12b of the board 12, respectively, and fixing hardware 36 soldered to the fixing pads 12c of the board 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,
A second spring having an S-shaped first spring portion 42 having a contact portion 42b and a contact portion 44a contacting a contact portion 82 of a contact 80 (an example of a second contact according to the present invention) described later.
And a tine part 46 to be soldered to the pad 12d of the substrate 12 are formed. First spring part 42
Contact portion 42c substantially contacts the wall surfaces 38a and 38b, and the second spring portion 44 contacts the contact portion 82 of the contact 80 as described above. This contact 40
It 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. The arrangement pitch is 0.6 mm, and the height from the substrate 12 is It is about 3.00 mm.

[0007] The plug connector 60 includes 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.

[0008] 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] A second embodiment of the electrical connector of the present invention will be described with reference to FIGS. Second
The electric connector of the embodiment is characterized by the shape of the plug connector, and the receptacle connector is the same as the shape of the first embodiment. Therefore, the plug connector will be described here. The plug connector 90 includes a housing 100 and a contact 120. Contact 120
It is 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 14a and 14b (see FIG. 3) of the board 14 and fixing pads 14c of the board 14, respectively.
Is provided with a fixing bracket 106 to be soldered to the fixing member. In addition, side walls 108 extending in the longitudinal direction of the housing 100 are formed on both sides in the width direction of the housing 100. An opening 108 a is formed in the side wall 108, and the 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 made 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 according to the present invention will be described with reference to FIGS. 8, 9, and 10. The features of the electrical connector of the third embodiment are the shield plate attached to the width direction 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 13 having substantially the same shape as the receptacle connector 20 and the plug connector 60 of the electrical connector 10 according to the first embodiment shown in FIGS.
0 and a plug connector 150. Ground contacts 134 and signal contacts 136 are arranged in a housing 132 of the receptacle connector 130.
On the other hand, the housing 152 of the plug connector 150 also has
Ground contacts 154 and signal contacts 156 are arranged. Also, the housing 1 of the plug connector 150
Shield plates 170 are attached to both side surfaces 158 in the width direction of 52. This mounting is performed by relatively sliding the housing 152 and the shield plate 170 and fitting the protrusions 158 a formed on both side surfaces 158 into the narrow portions 172 a of the slots 172 of the shield plate 170. The shield plate 170 has a doubly supported beam contact piece S1 having a dimple 174 formed thereon, and a tongue piece S2 for elastically contacting the ground contact 154 of the plug connector 150.

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.

[0013] 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 an electric connector according to a fourth embodiment 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 electric connector of the fourth embodiment has a shield plate 180 so that the cantilever contact piece S1 is hardly bent.
No protrusion is formed on the doubly supported contact piece S1. Also,
The dimple 174 (see FIG. 8) is not formed. The shield plate 17 of FIG.
It has the same effect as 0.

[Fifth Embodiment] An electrical connector according to a fifth embodiment 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, a signal contact 280 and a ground contact 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.

[0021]

As described above, according to the electrical connector of the present invention, at least one of the plurality of first contacts of the first connector and the plurality of second contacts of the second connector. Are first and second ground contacts that contact each other, and at least one of the first and second connectors has a shield plate that contacts the first or second ground contact. Can be easily grounded.

[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 Housing 38a, 38b Wall surface 40, 80 Contact 42 First spring part 44 Second spring part 60, 200 Plug connector 220, 280 Signal contact 230, 290 Ground contact 240,300 shield plate

Claims (1)

[Claims] 1. A first connector and a second connector mounted on a first board and a second board, respectively, in which a plurality of first contacts and second contacts in contact with each other are arranged. An electrical connector for connecting the first and second boards together by fitting the first and second connectors together, wherein at least one of the plurality of first contacts and the plurality of second contacts At least one of the first and second connectors is a first and a second ground contact that contacts each other, and at least one of the first and second connectors has a shield plate that contacts the first or the second ground contact. An electrical connector, characterized in that: