JP2002042928A - Electrical connector - Google Patents

Abstract

(57) Abstract: An object of the present invention is to provide an electrical connector which has a simple configuration and can obtain a good contact state even when a lateral external force is applied. SOLUTION: A plug connector main body 21 having a ridge 23 extending in a longitudinal direction on an upper surface, a plurality of connection terminals 22 attached side by side along both side surfaces of the ridge,
And a socket connector body 31 having an engagement groove 33 formed on the lower surface so as to fit the plug connector body with the plug connector 20 being sandwiched between the protrusions.
And a plurality of connection terminals 32 attached to the inner surfaces on both sides of the engagement groove. When the connection is made, each connection terminal on the socket connector side corresponds to a corresponding plug connector side. In the electrical connectors 10 and 40 that elastically contact the connection terminals from the outside, the protrusions 23 and the engagement grooves 33 are respectively formed on the upper surface and the bottom surface of the engagement portions 23a and 3 that face each other in the up-down direction.
3a, 23b, and 33b.
The electrical connectors 10 and 40 are configured so that 3a, 33a, 23b and 33b are engaged with each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrical connector having a plurality of connection terminals arranged in two rows for connecting, for example, two substrates.

[0002]

2. Description of the Related Art Conventionally, such an electrical connector is configured as shown in FIG. In FIG.
The electrical connector 1 includes a plug connector 3 to be mounted on a first substrate 2 and a socket connector 5 to be mounted on a second substrate 4.

[0003] The plug connector 3 has a plug connector main body 3a and a plurality of connection terminals 3b incorporated in the plug connector main body 3a. The plug connector main body 3a is formed in a long shape extending in a direction (longitudinal direction) perpendicular to the paper surface in FIG. 4, and has a ridge 3c formed on the upper surface thereof along the longitudinal direction. are doing.
The plug connector main body 3a includes positioning pins 3d for the first substrate 2, which are formed to protrude downward from the lower surface.

The connection terminals 3b are arranged at predetermined intervals along both side surfaces of the ridge 3c, and one end (lower end) of the connection terminal 3b penetrates the plug connector main body 3a. It is exposed on the lower surface. Thereby, the lower end of each connection terminal 3b is connected to a connection land (not shown) formed on the surface of the first substrate 2 by surface mounting.

On the other hand, the socket connector 5 has a socket connector main body 5a and a socket connector main body 5a.
And a plurality of connection terminals 5b incorporated in the control unit. The socket connector main body 5a is formed in a long shape extending in a direction (longitudinal direction) perpendicular to the paper surface in FIG. 4, and has an engagement groove 5c formed along the longitudinal direction on a lower surface thereof. are doing. The socket connector body 5a is
There is provided a positioning pin 5d for the second substrate 4 formed to project upward from the upper surface.

The connection terminals 5b are arranged at predetermined intervals along inner surfaces on both sides of the engagement groove 5c. One end (upper end) of the connection terminal 5b penetrates the socket connector body 5a, and It is exposed on the upper surface of. Thus, the upper end of each connection terminal 5b is connected to a connection land (not shown) formed on the surface of the second substrate 4 by surface mounting. Further, the other end (lower end) of the connection terminal 5b is curved inward downward, and the protrusion 3c of the plug connector 3 is inserted into the engagement groove 5c of the socket connector 5. When the plug connector 3 and the socket connector 5 are connected to each other, the plug connectors 3 are elastically brought into contact with the corresponding connection terminals 3b provided on both side surfaces of the ridge 3c of the plug connector 3.

According to the electrical connector 1 having such a configuration, after the plug connector 3 and the socket connector 5 are mounted on the first board 2 and the second board 4, respectively, the ridges of the plug connector 3 are formed. 3c is inserted into the engagement groove 5c of the socket connector 5. When the ridge 3c is completely pushed into the engagement groove 5c, each connection terminal 5b of the socket connector 5 is connected to the plug connector 3c.
By elastically contacting the corresponding connection terminal 3b, the connection between the plug connector 3 and the socket connector 5 is completed, and the first substrate 2 and the second substrate 4 are electrically connected to each other.

[0008]

However, in the electric connector 1 having such a configuration, the plug connector body 3a of the plug connector 3 and the socket connector body 5a of the socket connector 5 are connected to the connection terminal 5b on the socket connector 5 side. The lower end of the plug connector 3a is elastically brought into contact with the connection terminal 3a on the plug connector 3 side, so that the lower end of the plug connector 3a is restricted only in the transverse direction (the direction of arrow A in FIG. 4) perpendicular to the longitudinal direction. It does not have a structure for suppressing the displacement of the socket connector 5 in the lateral direction A with respect to the front end of the socket connector 5.

For this reason, as shown in FIG. 5, in a state where the plug connector 3 and the socket connector 5 are connected, a lateral direction A perpendicular to the longitudinal direction with respect to the socket connector 5 is provided.
When an external force is applied to the socket connector 5 due to vibration, impact, or the like, the socket connector 5 is inclined at a relatively large angle α with respect to the plug connector 3 against the elasticity of the connection terminal 5b on the socket connector 5 side. In connection with this, in the case of illustration, of the connection terminals 5b of the socket connector 5 among the connection terminals 5b of the socket connector 5, the connection terminal 3b of the plug connector side of the connection terminal 5b on the side to which external force is applied.
Will decrease. For this reason, the connection terminal 5b on the socket connector side is separated from the connection terminal 3b on the plug connector side due to, for example, vibration or impact applied to the electrical connector 1, and a contact failure occurs or the contact resistance fluctuates. There was a problem.

In view of the above, it is an object of the present invention to provide an electrical connector which has a simple structure and can obtain a good contact state even when it is subjected to a lateral external force.

[0011]

According to the present invention, there is provided an elongated plug connector body (21) having a lower surface mounted on a first substrate (11), and a plug connector body (2).
A ridge (2) formed along the longitudinal direction of the upper surface of 1)
3) and a plurality of connection terminals (22) attached side by side along the side surfaces of the ridge (23) and one end of which is exposed on the lower surface of the plug connector body (21). Connector (20), top surface of second substrate (12)
A long socket connector body (31) mounted on the
An engaging member formed to be fitted to the plug connector body (21) by sandwiching the ridge (23) of the plug connector (20) along the longitudinal direction of the lower surface of the socket connector body (31). Mating groove (33) and the engaging groove (33)
A plurality of connection terminals (32) which are attached side by side along the inner surfaces on both sides of the socket connector and one end of which is exposed on the upper surface of the socket connector body (31).
0), and when the plug connector (20) is connected to the socket connector (30), each connection terminal (32) on the socket connector (30) side corresponds to the corresponding plug connector (20) side. In the electric connectors (10) and (40), which are electrically connected to the connecting terminals (22) to be elastically contacted from the outside, the ridges (23) of the plug connector main body (21).
And the engagement groove (33) of the socket connector body (31)
Engaging portions (23a), (33a), (23b), and (33b) facing the upper surface and the bottom surface in the vertical direction, respectively.
When the plug connector (20) is connected to the socket connector (30), the engaging portion (23) provided on the ridge portion (23) of the plug connector body (21).
a) and (23b) are engaging portions (33a) and (33) provided in the engaging groove (33) of the socket connector body (31).
b) and the electrical connector (1)
0) and (40).

[0012] In the electric connector (10) according to the present invention, preferably, the engaging portion (23a) provided on the ridge (23) of the plug connector main body (21) is a concave portion, and The engagement groove (3) of the main body (31)
The engaging portion (33a) provided in 3) is a convex portion.

[0013] In the electric connector (40) according to the present invention, preferably, the engaging portion (23b) provided on the ridge portion (23) of the plug connector body (21) is a convex portion, and The engagement groove (3) of the connector body (31)
The engaging portion (33b) provided in 3) is a concave portion.

The electrical connectors (10), (4) according to the present invention
0) is preferably each of the engaging portions (23a) and (33).
a), (23b), and (33b) are provided near the longitudinal ends of the projection (23) of the plug connector body (21) and the engagement groove (33) of the socket connector body (31), respectively. I have.

According to the above configuration, the plug connector (2
When the socket connector (0) is connected to the socket connector (30), the engaging portions (23a) and (23b) provided on the upper surface of the ridge (23) of the plug connector (20), that is, the concave portion or the convex portion, When the socket connector (30) engages with the engaging portions (33a) and (33b) provided on the bottom surface of the engaging groove (33) of the socket connector (30), that is, the convex portion or the concave portion, the socket connector (30) becomes a plug connector ( 20) It is regulated in the lateral direction perpendicular to the longitudinal direction with respect to the tip. Therefore, even if a lateral external force is applied to the socket connector (30) by vibration, impact, or the like, the socket connector (30) is regulated with respect to the tip of the plug connector (20). The connection terminal (32) does not tilt against the elasticity of the connection terminal (32).
Thereby, the connection terminal (32) of the socket connector (30) side corresponds to the corresponding plug connector (20) by an external force.
Since there is no separation from the connection terminal (22) on the side, poor contact and fluctuation of contact resistance are suppressed, and the connection reliability of the electrical connectors (10) and (40) is improved.

The engaging portion (23a) provided on the ridge portion (23) of the plug connector body (21) is a concave portion, and the engaging groove (3) of the socket connector body (31) is provided.
When the engaging portion (33a) provided in 3) is a convex portion, the upper surface of the ridge portion (23) of the plug connector main body (21) is engaged with the engaging groove (33) of the socket connector main body (31). 3
Since it can be formed wider in the lateral direction than the bottom surface of 3), a concave portion is easily formed on the upper surface of the ridge portion (23) of the plug connector body (21), and the socket connector body (3) is formed.
A projection can be easily formed on the bottom surface of the engagement groove (33) of 1).

Each of the engaging portions (23a), (33a),
When (23b) and (33b) are provided near both ends in the longitudinal direction of the ridge portion (23) of the plug connector body (21) and the engagement groove (33) of the socket connector body (31), respectively. In the plug connector body (21) and the socket connector body (31), the upper surface and the bottom surface are formed flat near the middle in the longitudinal direction, so that the plug connector (20) or the socket connector (30) is formed. When mounting on the substrates (11) and (12), respectively, the flat portion can be suction-held by the suction head of the component mounter. The symbols in the parentheses are provided for easy understanding, are merely examples, and the present invention is not limited to these.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings. 1 and 2 show the configuration of a first embodiment of the electrical connector according to the present invention. In FIG. 1, the electrical connector 10 includes a plug connector 20 to be mounted on a first substrate 11 and a socket connector 30 to be mounted on a second substrate 12.

The plug connector 20 has a plug connector main body 21 and a plurality of connection terminals 22 incorporated in the plug connector main body 21. The plug connector main body 21 is formed in a long shape extending in a direction (longitudinal direction) perpendicular to the paper surface in FIG. 1, and has on its upper surface a ridge 23 formed along the longitudinal direction. are doing.
The plug connector main body 21 includes a positioning pin 24 for the first substrate 11, which is formed to protrude downward from the lower surface.

The connection terminals 22 are arranged side by side at predetermined intervals along both side surfaces of the ridge 23, and one end (lower end) of the connection terminal 22 penetrates the plug connector body 21, and It is exposed on the lower surface. Thus, the lower end of each connection terminal 22 is connected to a connection land (not shown) formed on the surface of the first substrate 11 by surface mounting.

On the other hand, the socket connector 30
Socket connector body 31 and socket connector body 3
And a plurality of connection terminals 32 incorporated in the same. The socket connector main body 31 is formed in a long shape extending in a direction (longitudinal direction) perpendicular to the paper surface in FIG. 1, and has an engagement groove 33 formed along the longitudinal direction on a lower surface thereof. are doing. The socket connector body 31 is
There is provided a positioning pin 34 for the second substrate 12 formed to project upward from the upper surface.

The connection terminals 32 are arranged at predetermined intervals along the inner surfaces on both sides of the engagement groove 33. One end (upper end) of the connection terminal 32 penetrates the socket connector main body 31, and the socket connector main body 31 It is exposed on the upper surface of. Thus, the upper end of each connection terminal 32 is connected to a connection land (not shown) formed on the surface of the second substrate 12. Further, the connection terminal 32
The other end (lower end) is curved inward downward,
The ridge 23 of the plug connector 20 is the socket connector 3
When the plug connector 20 is connected to the socket connector 30 by being inserted into the engagement groove 33 of the plug connector 20, the corresponding connection terminal 22 provided on both side surfaces of the ridge portion 23 of the plug connector 20 is provided. It comes into contact elastically.

The above configuration is substantially the same as that of the electrical connector 1 shown in FIG. 4, but the electrical connector 10 according to the embodiment of the present invention is different in the following points. That is, the ridge 23 of the plug connector 20 is
On its upper surface, a concave portion 23a is provided as an engaging portion.
Correspondingly, the engagement groove 33 of the socket connector 30 has a projection 33a as an engagement portion on the bottom surface. Both the concave portion 23a and the convex portion 33a are provided only near the longitudinal ends of the ridge portion 23 and the engaging groove 33, respectively.

The electrical connector 10 according to the embodiment of the present invention
Is configured as described above, and the plug connector 20
After the socket connector 30 is mounted on the first board 11 and the second board 12, respectively, the ridge 23 of the plug connector 20 is connected to the engagement groove 3 of the socket connector 30.
3 is inserted. When the protrusion 23 is completely pushed into the engagement groove 33, the protrusion 33 a provided on the bottom surface of the engagement groove 33 of the socket connector 30 is provided on the upper surface of the protrusion 23 of the plug connector 20. And the respective connection terminals 32 of the socket connector 30 elastically abut against the corresponding connection terminals 22 of the plug connector 20, respectively. The connection of the socket connector 30 is completed, and the first substrate 11 and the second substrate 12 are electrically connected to each other.

Here, in a state where the plug connector 20 and the socket connector 30 are connected, as shown in FIG.
When an external force is applied to the socket connector 30 in a lateral direction B perpendicular to the longitudinal direction by vibration, impact, or the like, the socket connector 30 attempts to move in the lateral direction B due to the external force. The lower end is engaged with the ridge 23 of the plug connector 20, and
In the vicinity of the middle, the convex portion 33a as an engaging portion provided on the bottom surface of the engaging groove 33 engages with the concave portion 23a as an engaging portion provided on the upper surface of the ridge portion 23 of the plug connector 20. Therefore, the inclination of the socket connector 30 is restricted, and the socket connector 30 is inclined by a relatively small angle β. Therefore, of the connection terminals 32 of the socket connector 30, the pressing force of the connection terminal 32 on the side to which external force is applied to the connection terminal 22 on the plug connector does not decrease. Thereby, for example, by vibration or impact applied to the electrical connector 10,
Since the connection terminal 32 on the socket connector side does not separate from the connection terminal 22 on the plug connector side, it is possible to prevent the occurrence of poor contact and the fluctuation of the contact resistance.

In the electrical connector 10, a concave portion 23 a as an engaging portion is formed on the upper surface of the ridge portion 23 of the plug connector 20, and a convex portion 33 a is formed as an engaging portion on the bottom surface of the engaging groove 33 of the socket connector 30. , Respectively. As a result, generally, the upper surface of the projection 23 of the plug connector main body 20 is
3 can be formed wider in the horizontal direction than the bottom surface of the plug connector body 20, so that the concave portion 23a can be easily formed on the upper surface of the ridge portion 23 of the plug connector body 20, and the convex portion can be easily formed on the bottom surface of the engaging groove 33 of the socket connector body 30. 33a can be formed.

Further, the concave portion 23a and the convex portion 33a are
Since they are provided near both ends in the longitudinal direction of the projection 23 of the plug connector body 20 and the engagement groove 33 of the socket connector body 30, respectively, the upper surface of the projection 23 and the engagement groove 3 are provided.
Near the middle of the bottom surface of the bottom 3 in the longitudinal direction can be formed flat.
Therefore, the plug connector 20 or the socket connector 3
0 is mounted on the first substrate 11 and the second substrate 12, respectively, the flat portion can be suction-held by the suction head of the component mounting machine. It does not prevent automatic implementation by.

FIG. 3 shows a second embodiment of the electrical connector according to the present invention. 3, the electrical connector 40 is different from the electrical connector 10 shown in FIG. 1 in that a convex portion 23b is provided on the upper surface of the ridge portion 23 of the plug connector 20 instead of the concave portion 23a as an engaging portion and a socket. A projection 33a is formed on the bottom surface of the engagement groove 33 of the connector 30 as an engagement portion.
Instead of having the concave portion 33b, and the other configuration is almost the same as that of the electrical connector 10 shown in FIG. 1. Therefore, the same components are denoted by the same reference numerals. The description is omitted. In this case as well, the convex portion 23b and the concave portion 33b are both provided only in the vicinity of both ends in the longitudinal direction of the ridge portion 23 and the engaging groove 33.

According to the electric connector 40 having such a configuration, the electric connector 10 is connected in the same manner as the electric connector 10 shown in FIG. 1, and the plug connector 20 and the socket connector 30 are connected as shown in FIG. Similarly to the above, the vibration in the lateral direction perpendicular to the longitudinal direction with respect to the socket connector 30,
When an external force is applied by an impact or the like, the external force causes the socket connector 30 to move in the lateral direction B, but the lower end of the socket connector 30 is engaged with the projection 23 of the plug connector 20 and The recess 3 as an engaging portion provided on the bottom surface of the engaging groove 33 near the middle
3b is engaged with the convex portion 23b as an engaging portion provided on the upper surface of the ridge portion 23 of the plug connector 20, so that the inclination of the socket connector 30 is restricted, and the socket connector 30 Will tilt by a relatively small angle. Therefore, of the connection terminals 32 of the socket connector 30, the pressing force of the connection terminal 32 on the side to which external force is applied to the connection terminal 22 on the plug connector does not decrease. Thus, for example, due to vibration or impact applied to the electrical connector 10, the connection terminal 32 on the socket connector side becomes the connection terminal 2 on the plug connector side.
2, the occurrence of a contact failure and a change in contact resistance can be prevented.

In the above embodiment, the projection 23 of the plug connector 20 is provided with a recess 23a or a projection 23b, and the engagement groove 33 of the socket connector 30 is provided with a projection 33a or a recess 33b. However, the present invention is not limited to this, and it is apparent that other arbitrary shapes that can engage with each other may be provided.

[0031]

As described above, according to the present invention, when the plug connector and the socket connector are connected, the engaging portion provided on the upper surface of the ridge portion of the plug connector, that is, the concave portion or the convex portion is provided. By engaging with the engaging portion provided on the bottom surface of the engaging groove of the socket connector, that is, the convex portion or the concave portion, the socket connector is regulated in the lateral direction perpendicular to the longitudinal direction with respect to the plug connector tip. become. Therefore, even if a lateral external force is applied to the socket connector due to vibration, impact, or the like, the socket connector is regulated with respect to the plug connector tip, so that
There is no inclination against the elasticity of the connection terminal on the socket connector side. As a result, the connection terminal on the socket connector side does not separate from the corresponding connection terminal on the plug connector side due to external force, so that poor contact and fluctuation of contact resistance are suppressed, and the connection reliability of the electrical connector is reduced. The performance is improved.

Thus, according to the present invention, it is possible to provide an electric connector which can obtain a good contact state even when it is subjected to a lateral external force by a simple structure.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a configuration of a first embodiment of an electrical connector according to the present invention.

FIG. 2 is a cross-sectional view showing a connection state in which the outline of the electrical connector of FIG.

FIG. 3 is a sectional view showing a configuration of an electric connector according to a second embodiment of the present invention.

FIG. 4 is a cross-sectional view illustrating a configuration of an example of a conventional electrical connector.

FIG. 5 is a cross-sectional view showing a connection state of the electric connector of FIG. 4 in which an external force acts.

[Explanation of symbols]

 10, 40 Electrical connector 11 First substrate 12 Second substrate 20 Plug connector 21 Plug connector main body 22, 32 Connection terminal 23 Protrusion 23a, 33b Engagement (concave) 23b, 33a Engagement (convex) 24 Positioning pin 30 Socket connector 31 Socket connector body 33 Engagement groove

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5E023 AA04 AA16 BB02 BB22 BB29 CC02 CC22 CC26 DD22 EE03 EE10 FF01 GG01 GG07 HH01 HH08 HH22

Claims (4)

[Claims] 1. A plug connector main body having a lower surface mounted on a first substrate, a ridge formed along a longitudinal direction of an upper surface of the plug connector main body, and a ridge formed along both side surfaces of the ridge. A plug connector comprising a plurality of connection terminals, one end of which is exposed at the lower surface of the plug connector body, a long socket connector body having an upper surface mounted on the second board, and a socket connector body Along the longitudinal direction of the lower surface of the plug connector, an engaging groove formed so as to fit the plug connector main body by sandwiching the ridge portion of the plug connector,
Attached along the inner surface on both sides of the engagement groove,
A plurality of connection terminals, one end of which is exposed on the top surface of the socket connector body, and a socket connector comprising: a plug connector connected to the socket connector;
In the electric connector in which each connection terminal on the socket connector side is elastically contacted with a corresponding connection terminal on the plug connector side to make an electrical connection, the ridge portion of the plug connector body and the socket connector The engaging groove of the main body has an engaging portion on the top surface and the bottom surface facing each other in the vertical direction, and when the plug connector is connected to the socket connector,
An electric connector characterized in that an engaging portion provided on a projection of a plug connector main body engages with an engaging portion provided on an engaging groove of a socket connector main body. 2. The connector of claim 2, wherein the engaging portion provided on the projection of the plug connector body is a concave portion, and the engaging portion provided on the engaging groove of the socket connector body is a convex portion. The electrical connector according to claim 1, characterized in that: 3. The plug connector body according to claim 1, wherein the engaging portion provided on the projecting ridge portion is a convex portion, and the engaging portion provided on the engaging groove of the socket connector body is a concave portion. The electrical connector according to claim 1, characterized in that: 4. The method according to claim 1, wherein each of the engaging portions is provided near both ends in the longitudinal direction of the ridge portion of the plug connector main body and the engaging groove of the socket connector main body.
The electrical connector according to claim 1.