JP2009087606A - Connector and male/femal-integrated connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector having no adverse effect on SMT (surface mounting) bonding so that stress caused by each contact between a pair of connectors does not applied to a first terminal, and a male/female-integrated connector. <P>SOLUTION: A pin contact 4 comprises a contact section 4a connected with a mating connector, the first terminal 4b capable of being connected with a connecting section (pad or the like) of an object to be connected (base board or the like), the second terminal 4c capable of being connected with the connecting section of the object to be connected, and a coupling section 4d for connecting the contact section, the first terminal, and the second terminal. The coupling section is located at the fitting side of the mating connector. Each of the contact section, the first terminal, and the second terminal is extended in the same direction from the coupling section. A retaining section 4b1 to a housing 3 is formed at the first terminal. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a contact structure of a mounting portion of a connector, and targets a normal connector and a hermaphroditic connector.

  A conventional fitting structure of a pair of connectors will be described with reference to a publication distributed before the present application (see, for example, Patent Document 1).

  FIG. 13 is a cross-sectional view of a state in which one connector 41 and the other connector 51 are fitted.

  In FIG. 13, the connector 41 includes a large number of contacts 42, an insulator 43 that holds each contact 42, and a hold-down 44 that is held by the insulator 43. The contacts 42 are arranged so as to face two rows in a direction orthogonal to the paper surface at a predetermined pitch. The connector 41 is fixed to the printed circuit board 61 by a hold down 44.

  The connector 51 includes a large number of contacts 52, an insulator 53 that holds each contact 52, and a hold-down 54 that is held by the insulator 53. The contacts 52 are arranged so as to face two rows in a direction orthogonal to the paper surface at a predetermined pitch. The connector 51 is fixed to the printed circuit board 71 by a hold down 54.

  14A and 14B are views of the contact 42 of one connector 41. FIG. 14A is a perspective view of the contact 42, FIG. 14B is a side view of the contact 42, and FIG. 14C is a plan view of the contact 42. Show.

The contact 42 includes a contact portion 42a connected to the contact 52 of the connector 51,
A body portion 42b held by press-fitting into an insertion hole (not shown) of the insulator 43, lead portions 42d and 42e connectable to pads 62 and 63 of the printed circuit board 61 (see FIG. 16), and held by the insulator 43. The holding portion 42f is substantially L-shaped. The thickness s of the body part 42b is formed thinner than the thickness t of the contact part 42a.

  FIG. 15 is a perspective view of the contact 52 of the other connector 51.

The contact 52 includes a joint portion 52a that is in sliding contact with the contact 42 of the connector 41, and
Lead portions 52b and 52c connectable to pads (not shown) of the printed circuit board 71;
The holding portion 52d held by the insulator 53 is formed in a substantially F shape.

  In the printed circuit board 61, as shown in FIG. 16, in the longitudinal direction of the connector 41, a pad 63 at a short distance a from the axis c of the connector 41 and a pad 62 at a long distance b are staggered (staggered). ) Is arranged. And it arrange | positions symmetrically centering on the axial center c.

  When one connector 41 is mounted on the printed circuit board 61, as shown in FIG. 16, the lead portion 42d of the contact 42 is soldered to the pad 63 at the short distance a, and the lead portion 42e is soldered to the pad 62 at the long distance b. Attached. Thus, since both the lead portions 42d and 42e are provided in the contact 42, when one of the lead portions (for example, 42d) is soldered, the other lead portion (for example, the contact portion 42e) is provided. ) Is not soldered and is not electrically connected to the pad 62 or 63. Therefore, by arranging the pads on the printed circuit board 61 side in a staggered (staggered) manner, the soldering surface mounting of the connector 41 in which the contacts 42 are arranged at a high density with a narrow pitch becomes possible.

JP 2004-200110 A

  The conventional pair of connectors has the following drawbacks.

  1. Since the first terminal portion 42d is located between the contact portion 42a and the holding portion 42f, stress due to the contact force with the contact 52 is applied to the first terminal portion 42d, which adversely affects SMT (surface mounting) bonding (stress on the solder). And the solder is cracked or peeled off. This stress also adversely affects the second terminal portion 42e near the holding portion 42f.

  2. Since the contact portion 42a and the SMT terminal portion 42d are relatively short in distance and cannot prevent solder rise, the solder rise may be caused near the contact portion 42a.

  3. An elastic part is formed between the holding part 52d and the joint part 52a, but since there is a lead part 52b between them, a difference in spring constant occurs between adjacent contacts 52. For this reason, a difference occurs in the contact force between the adjacent contacts 52.

  Therefore, the present invention improves the drawbacks of the conventional pair of connectors, and exerts an adverse effect on SMT (surface mount) bonding by preventing stress when the connector contact comes into contact with the mating connector on the first terminal portion. Connectors and hermaphroditic connectors that do not cause any stress (stress is applied to the solder, cracks in the solder, or peel off), prevent solder from rising near the contact portion, and also prevent plastic deformation of the contact. Is to provide.

  The present invention employs the following means in order to solve the above problems.

1. In the connector that connects between the mating connector and the connection object, the connector has a contact and a housing that holds the contact,
The contact includes a contact portion connected to the mating connector, a first terminal portion connectable to the connection portion of the connection object, a second terminal portion connectable to the connection portion of the connection object, A connecting portion that connects the contact portion, the first terminal portion, and the second terminal portion;
The connecting portion is located on the mating side with the mating connector,
Each of the contact portion, the first terminal portion, and the second terminal portion extends from the connecting portion in the same direction,
At least one of the first terminal portion and the second terminal portion is formed with a holding portion to the housing,
At least one of the first terminal portion and the second terminal portion is a connector connected to a connection portion of the connection object.

2. In the connector that connects between the mating connector and the connection object,
The connector includes a contact and a housing that holds the contact,
The contact includes a contact portion connected to the mating connector, a first terminal portion connectable to the connection portion of the connection object, a second terminal portion connectable to the connection portion of the connection object, A connecting portion that connects the contact portion, the first terminal portion, and the second terminal portion;
The contact is composed of a first contact and a second contact, and a contact portion of the second contact is formed in a U shape and has elasticity,
The connecting portion is located on the mating side with the mating connector,
Each of the contact portion, the first terminal portion, and the second terminal portion extends from the connecting portion in the same direction,
At least one of the first terminal portion and the second terminal portion is formed with a holding portion to the housing,
At least one of the first terminal portion and the second terminal portion is a connector connected to a connection portion of the connection object.

3. The same connector is used for the connector according to 2 and the mating connector,
The housing has a pin connector portion that holds the first contact and a socket connector portion that holds the second contact;
The socket connector portion of the connector is formed with a receiving portion for receiving the pin connector portion of the mating connector,
A male and female union connector in which the socket connector portion of the mating connector is formed with a receiving portion for receiving the pin connector portion of the connector.

  As is apparent from the description of the specification, the present invention has the following effects.

  1. Since the contact of the present invention is configured to extend the first terminal portion, the second terminal portion, and the contact portion in the same direction from the connecting portion located on the mating side with the mating connector, the contact is in contact with the mating connector. The stress is not applied to the first terminal portion and the second terminal portion, and the SMT (surface mounting) bonding is not adversely affected (stress is applied to the solder, the solder is cracked or peeled off).

  2. The distance between the contact portion and the first terminal portion and the second terminal portion is relatively long, and it is easy to prevent the solder from rising in terms of shape.

  3. There is no elastic part between the contact part and the second terminal part, and there is the first terminal part between them, so there is no difference in spring constant between adjacent contacts. For this reason, the contact can be designed with a uniform contact force.

  Three connectors according to the present invention will be described.

  A hermaphroditic connector according to Embodiment 1 of the present invention when the same connector 1 and counterpart connector 11 (see FIG. 8) are used will be described with reference to FIGS.

  FIG. 1 is a perspective view of the connector 1. The left half of the connector 1 is a receptacle 1a, and the right half is a plug 1b.

  In the receptacle part 1a, a large number of socket contacts 2 are held in a housing (insulator) 3 at a predetermined pitch in two rows (see FIG. 6 for details).

  A large number of pin contacts 4 are held in the housing 3 at a predetermined pitch in two rows on the plug portion 1b (see FIG. 7 for details).

  2 to 5 are four views of the connector 1, and sequentially show a plan view, a front view, a bottom view, and a side view, respectively.

  6 is an enlarged view of a cross section B-B seen in the direction of the arrow in FIG. The socket contact 2 is configured integrally with a terminal portion 2a and a connection portion 2b.

  The terminal portion 2a includes a first terminal portion 2a1 that can be connected to a connection portion (pad or the like) of a connection object (substrate or the like), a second terminal portion 2a2 that can be connected to a connection portion of the connection object, or a contact portion 2b2. (Described later), and a connecting portion 2a4 that connects the first terminal portion 2a1 and the second terminal portion 2a2.

  Connection part 2a4 is located in the fitting side with the other party connector. Each of the contact portion 2b2, the first terminal portion 2a1, and the second terminal portion 2a2 extends in the same direction from the connecting portion 2a4.

  A holding portion 2a3 for the housing 3 is formed in the first terminal portion 2a1, but a holding portion for the housing 3 may be formed in the second terminal portion 2a2, and the first terminal portion 2a1 and the second terminal You may form the holding part to the housing 3 in both the parts 2a2.

  Moreover, although both the 1st terminal part 2a1 and the 2nd terminal part 2a2 may be connected with the connection part of a connection target object, you may connect only any one with the connection part of a connection target object.

  The connecting portion 2b is formed in a U shape including the contact portion 2b2 connected to the mating connector, and has elasticity. The connecting portion 2b is also formed with a protruding contact portion 2b1 that connects to the mating connector.

  FIG. 7 is an enlarged view of a cross section AA viewed in the direction of the arrow in FIG. The pin contact 4 can be connected to a contact portion 4a that is connected to the mating connector, a first terminal portion 4b that can be connected to a connection portion (pad or the like) of a connection target (substrate or the like), and a connection portion of the connection target. A second terminal portion 4c, and a connecting portion 4d for connecting the contact portion 4a, the first terminal portion 4b, and the second terminal portion 4c.

  The connecting portion 4d is located on the fitting side with the mating connector. Each of the contact part 4a, the 1st terminal part 4b, and the 2nd terminal part 4c is extended in the same direction from the connection part 4d.

  Although the holding part 4b1 to the housing 3 is formed in the first terminal part 4b, the holding part to the housing 3 may be formed in the second terminal part 4c, and the first terminal part 4b and the second terminal You may form the holding part to the housing 3 in both the parts 4c.

  Moreover, although both the 1st terminal part 4b and the 2nd terminal part 4c may be connected with the connection part of a connection target object, you may connect only any one with the connection part of a connection target object.

  The two rows of socket contacts 2 and pin contacts 4 are both held symmetrically at the center of the housing 3.

  FIG. 8 is an enlarged cross-sectional view of the connector 1 fitted with the mating connector 11.

  FIG. 9 is a staggered arrangement diagram of the pads 21 of the substrate. In the connector 1, the pitch of the pads 21 on the board is twice the pitch of the first terminal portion 2a1, the second terminal portion 2a2 of the socket contact 2, the first terminal portion 4b of the pin contact 4, and the second terminal portion 4c. Place. According to this arrangement, the first terminal portion 2a1 of the first socket contact 2 is connected to the pad 21a of the substrate, and the second terminal portion 2a2 is not connected to the pad 21a and the second terminal 2a1 of the second socket contact 2 is connected. The two terminals 2a2 are connected to the pads 21b, and the first terminals 2a1 are not connected to the pads 21b. Thus, the two terminals can be connected to the pads 21 alternately. Similarly to the socket contact 2, the pin contact 4 is connected to the pad 21c, the first terminal portion 4b is connected to the pad 21d, and is alternately connected to the pad 21.

  A hermaphroditic connector according to Embodiment 2 of the present invention will be described with reference to FIG. In the description of the second embodiment, description of the same points as in the first embodiment will be omitted, and different points will be described. The difference from the first embodiment is that the receptacle portion 1a and the plug portion 1b of the first embodiment are each configured in two rows, but in the second embodiment, this is configured in one row.

  The same connector 1 and counterpart connector 11 are used. The housing 3 includes a plug portion 1b that holds the first contact 4 and a receptacle portion 1a that holds the second contact 2. The receptacle part 1 a of the connector 1 is formed with a receiving part 1 a 1 for receiving the plug part 1 b of the mating connector 11. The receptacle portion of the mating connector 11 is formed with a receiving portion that receives the plug portion 1 b of the connector 1.

  A connector according to Embodiment 3 of the present invention will be described with reference to FIGS. In the description of the third embodiment, the description of the same points as in the first embodiment will be omitted, and different points will be described.

  As shown in FIG. 11, the plug connector 26 is configured by holding a large number of pin contacts (first contacts) 27 in two rows on the front and rear sides of the housing 28 at a predetermined pitch. Each pin contact 27 has a pin fitting portion 27a formed in a substantially U shape. A space 28 a is formed between the two rows of pin contacts 27 in the housing 28. Side walls 28 b are formed on both the left and right sides of the housing 28.

  As shown in FIG. 12, the receptacle connector (mating side) 31 is configured by holding a large number of socket contacts (second contacts) 32 in two rows on the front and rear sides of the housing 33 at a predetermined pitch. Each socket contact 32 has a substantially U-shaped portion and a substantially L-shaped portion formed continuously. A protrusion 33 a of the housing 33 is formed between the multiple rows of socket contacts 32 in the housing 33. On both the front and rear sides of the projecting portion 33a, the two rows of the socket contacts 32 constitute a socket fitting portion 32a. Further, side walls 33 b are formed on the left and right sides of the housing 33. In the housing 33, a groove 33c is formed between the left and right sides of the protrusion 33a and the side walls 33b.

  When the plug connector 26 is fitted to the receptacle connector 31, the two pin fitting portions 27a are inserted and connected to the two socket fitting portions 32a, respectively. At this time, both side walls 28 b of the plug connector 26 are inserted into both grooves 33 c of the receptacle connector 31.

It is a perspective view of the hermaphroditic connector of Example 1 of the present invention. It is a top view of the connector. It is a front view of the connector. It is a bottom view of a connector. It is a side view of the connector. FIG. 4 is an enlarged view of a cross section BB seen in the direction of the arrow in FIG. 3. FIG. 4 is an enlarged view of a cross section AA viewed in the direction of the arrow in FIG. 3. It is a cross-sectional enlarged view of the state in which the connector is fitted with the mating connector. It is a stagger (staggered) arrangement | sequence figure of the pad of a board | substrate. It is a perspective view of the hermaphroditic connector of Example 2 of the present invention. It is a perspective view of the plug connector of Example 3 of the present invention. It is a perspective view of the receptacle connector of Example 3 of this invention. It is sectional drawing of the state which one conventional connector and the other connector fitted. It is various drawings of the contact of one conventional connector, (A) is a perspective view of the contact, (B) is a side view of the contact, and (C) is a plan view of the contact. It is a perspective view of the contact of the other conventional connector. It is a top view of the stagger arrangement | positioning of the pad of the conventional printed circuit board.

Explanation of symbols

1 Connector (male and female connector)
1a Receptacle part (socket connector part)
1a1 receiving part 1b plug part (pin connector part)
2 Socket contact (second contact)
2a terminal part 2a1 first terminal part 2a2 second terminal part 2a3 holding part 2a4 connecting part 2b connecting part 2b1 contact part 2b2 contact part 3 housing (insulator)
4-pin contact (first contact)
4a Contact part 4b 1st terminal part 4b1 Holding | maintenance part 4c 2nd terminal part 4d Connection part 11 Opposite side connector (gender connector)
21 Pad 21a, 21b, 21c, 21d Pad 26 Plug connector (connector)
27 pin contact (first contact)
27a Pin fitting portion 28 Housing 28a Space portion 28b Side wall 31 Receptacle connector (mating connector)
32 Socket contact (second contact)
32a Socket fitting part 33 Housing 33a Projection part 33b Side wall 33c Groove

Claims (3)

In the connector that connects between the mating connector and the connection object,
The connector includes a contact and a housing that holds the contact,
The contact includes a contact portion connected to the mating connector, a first terminal portion connectable to the connection portion of the connection object, a second terminal portion connectable to the connection portion of the connection object, A connecting portion that connects the contact portion, the first terminal portion, and the second terminal portion;
The connecting portion is located on the mating side with the mating connector,
Each of the contact portion, the first terminal portion, and the second terminal portion extends from the connecting portion in the same direction,
At least one of the first terminal portion and the second terminal portion is formed with a holding portion to the housing,
At least one of the first terminal portion and the second terminal portion is connected to a connection portion of the connection object. In the connector that connects between the mating connector and the connection object,
The connector includes a contact and a housing that holds the contact,
The contact includes a contact portion connected to the mating connector, a first terminal portion connectable to the connection portion of the connection object, a second terminal portion connectable to the connection portion of the connection object, A connecting portion that connects the contact portion, the first terminal portion, and the second terminal portion;
The contact is composed of a first contact and a second contact, and a contact portion of the second contact is formed in a U shape and has elasticity,
The connecting portion is located on the mating side with the mating connector,
Each of the contact portion, the first terminal portion, and the second terminal portion extends from the connecting portion in the same direction,
At least one of the first terminal portion and the second terminal portion is formed with a holding portion to the housing,
At least one of the first terminal portion and the second terminal portion is connected to a connection portion of the connection object. The same connector is used for the connector according to claim 2 and the mating connector,
The housing has a pin connector portion that holds the first contact and a socket connector portion that holds the second contact;
The socket connector portion of the connector is formed with a receiving portion for receiving the pin connector portion of the mating connector,
A male and female union connector, wherein the socket connector portion of the mating connector is formed with a receiving portion for receiving the pin connector portion of the connector.

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