KR20140093631A - Socket of connector between substrates and connector thereof - Google Patents

Abstract

The present invention provides a connector of substrates which can easily reducing the length or the height and narrowing a pitch. The connector (1) of substrates comprises a header (3) having multiple header contacts (6a, 6b), and a socket (5) having multiple socket contacts (19a, 19b). The socket contacts (19a, 19b) comprise a plate-shaped socket side connection (28) which is continuous in the longitudinal direction. A continuous insertion fixing hole (31) is installed in the longitudinal direction at the socket side connection part (28). The insertion fixing hole (31) comprises an insertion part (31a) and a press part (31b) pressed as a protrusion part (17) of the corresponding header contacts (6a, 6b) inserted into the insertion part moves in the longitudinal direction of the insertion fixing hole (31).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a socket-

The present invention relates to a socket-to-board connector of a board-to-board connector for connecting circuit boards.

2. Description of the Related Art [0002] Conventionally, an inter-board connector is known which has a socket having a plurality of socket contacts and a header having a plurality of header contacts each connected to each socket contact, for electrically connecting circuit boards such as a printed circuit board For example, see Japanese Patent Laid-Open Publication No. 2008-27713).

In the inter-board connector of Patent Document 1, the header contact has a plurality of columnar attachment portions protruding toward the socket side. The socket contacts are provided with first to third touching spring portions which are respectively in contact with the attachment portions in a direction orthogonal to the protruding direction of the attachment portion. The header and the socket are connected by inserting the attachment portion of each header contact between the first to third tear spring portions of the corresponding socket contacts.

When the attachment portions are inserted between the first to third tactile spring portions, the first and second tactile spring portions are pressed against the attachment portion, the third tactile spring portions are pressed against the attachment portion, Contact. This solid contact allows good electrical connection of the socket contact and the header contact.

According to this, the first to third touching spring portions are bent in a direction perpendicular to the protruding direction of the attachment portion of the header contact, and come into contact with the attachment portion in that direction. Therefore, the size of the board-to-board connector can be reduced in the projecting direction of the attachment portion, that is, in the connection direction of the socket and the header, as compared with the case in which the respective take-away springs are bent freely toward the protruding direction of the attachment portion, Lowering of height) can be realized.

Japanese Patent Application Laid-Open No. 2008-27713

However, in recent years, due to high performance and compactness of mobile devices and the like, it is required to lower the pitch of the device and to narrow the pitch of the contact. Thus, the inter-board connector of Patent Document 1 has a structure in which the contact spring portion of the socket contact is bent and bent in a direction orthogonal to the protruding direction with respect to the attachment portion of the header contact, so that the size in the orthogonal direction is increased and the pitch is narrowed .

In the inter-board connector of Patent Document 1, when the attachment portion of the header contact is inserted between the contact spring portions, the first and second touch spring portions are bent in contact with the attachment portion so that the third touch spring portion is pushed against the header contact The structure is complex. For this reason, according to the inter-board connector of Patent Document 1, it is difficult to achieve improved low-emission and narrowed pitch.

It is an object of the present invention to provide a socket-to-board connector of an inter-substrate connector which can easily achieve a new low fill and narrow pitch, in view of the problems of the related art.

The socket of the board-to-board connector of the present invention is a socket of an inter-board connector having a header mounted on a circuit board and a socket electrically connected to a corresponding header mounted on another circuit board, A plurality of conductive header contacts arranged in a pitch and having protrusions protruding to the socket side and a header body for supporting the plurality of header contacts, A plurality of conductive socket contacts arranged at the pitch in the vertical direction and an insulative resin socket body for supporting the plurality of socket contacts, each socket contact being continuous in the longitudinal direction thereof, Shaped socket-side connecting portion parallel to the direction of the socket-side connecting portion, and each of the socket-side connecting portions extends in the thickness direction thereof and is continuous Wherein each of the insertion and fixing holes has an insertion portion into which a protrusion of the corresponding header contact is inserted and a press-in portion in which the corresponding protrusion inserted into the insertion portion is press-fitted by moving in the longitudinal direction of the insertion- Wherein each socket-side connecting portion is covered with a resin of the socket body except for the contact portion within a predetermined range in the inserting / fixing hole, and the adjacent socket-side connecting portions are filled with the resin. do.

In the present invention, when the header and the socket are connected, the header and the socket are positioned so as to be adjacent to each other so that protrusions of corresponding header contacts are inserted into the insertion portion of the insertion hole of each socket contact. Then, the header is moved in the longitudinal direction of the insertion hole with respect to the socket. As a result, the inserted protrusions are press-fitted into the press-fit portions of the respective inserting / fixing holes, so that the respective header contacts and the socket contacts come into electrical contact, thereby establishing the connection between the socket and the header.

Prior to this, when the protrusion is inserted into the insertion portion, the socket contact does not receive much force in the insertion direction. Further, when the protruding portion is press-fitted into the press-in portion, the press-in direction coincides with the longitudinal direction of the socket contact, so that the socket contact can easily cope with the force received by the press-in. Thus, the connection between the socket and the header is performed without interruption.

Since the socket contacts of the socket contacts are flat plates extending in the longitudinal direction of the socket contacts, the socket contacts have such a simple structure that the insertion holes are provided. It is sufficient that the header contact has a protruding portion. Therefore, it is possible to easily achieve enhanced lowering of the inter-substrate connector and narrowing of the pitch.

Since the socket body is made of resin and each socket-side connecting portion is covered with the resin of the socket body except for the contact portion, and the space between the adjacent socket-side connecting portions is filled with the resin, And at the same time, the insulating property between adjacent socket contacts can be maintained well. Further, since the socket contacts are covered with the resin of the socket body except for the necessary portions, the insulation does not deteriorate even if dust enters the socket while being mounted on the circuit board. Thus, enhanced lowering and narrowing of the pitch can be achieved more easily.

In the present invention, a portion of the socket body between the socket-side connecting portions adjacent to each other may be provided with grooves or through-holes for absorbing deformation of the socket body by the press-fitting.

In this configuration, when the protruding portions of the respective header contacts are press-fitted into the press-in portions of the socket-side connecting portions of the corresponding socket contacts, the socket-side connecting portions can be forcedly expanded by the protruding portions, The portion of the socket body between the two is pressed. As a result, the portion of the socket body tends to bulge in a direction perpendicular to the pressed direction by the depressed portion, so that deformation occurs.

However, since such deformation is absorbed by the grooves or through-holes described above, bulging of the socket body portion is prevented. Accordingly, it is possible to promote the lowering of the inter-board connector more easily.

In addition, since the deformation occurring in the resin portion is absorbed, the repulsive force against the pressure in the resin portion is also weakened to some extent. Therefore, press-fitting can be performed smoothly in the press-in portion of the protruding portion. Accordingly, even if the gap between the adjacent socket-side connecting portions, that is, the thickness of the corresponding resin portion, becomes smaller, the press-fitting can be performed without any trouble. Therefore, the narrowing of the pitch can be further promoted.

In the present invention, a gap may be provided between the side surface of the socket-side connecting portion and the socket body to absorb deformation of the socket-side connecting portion due to the press-fitting.

According to the configuration, when the protruding portions of the respective header contacts are forced into the press-in portions of the socket-side connecting portions of the corresponding socket contacts, when the socket-side connecting portions are forcibly expanded by the protruding portions, . Thus, deformation of the socket body portion on the side of the socket-side connecting portion is suppressed.

When the gap is provided between the side surface of the socket-side connecting portion and the socket body, it is preferable that an inclined surface is provided at a corner portion of the side surface of the socket-side connecting portion which is in contact with the socket body.

When the inclined surfaces are provided, the projecting portions of the respective header contacts are press-fitted into the press-in portions of the socket-side connecting portions of the corresponding socket contacts. When the socket-side connecting portions are laterally expanded by the gap, It extends smoothly without hanging on the wall. Therefore, when connecting the header and the socket, connection can be performed with a small force. Further, the inclined surface corresponds to an arc shape or a straight line when cross section. Further, the inclined surface may be formed by a so-called flat pressure method in which the socket contact is formed by a lubrication process in which burrs do not occur on both sides.

In the present invention, it is preferable that the socket body has the same range as the existing range in the thickness direction of the socket-side connecting portion in the range of existence of the contact portion in the longitudinal direction of the socket contact from the one end side to the other end side of the above- Is preferably formed in a range.

According to this, since the thickness of the socket body portion between the socket contacts becomes thin, when the protrusion of the header contact is inserted into the insertion fixing hole, the socket body portion is easily deformed. Therefore, it is possible to perform indentation with a smaller force.

In the present invention, the press fitting portion of the insertion fixing hole is provided with an engagement portion (engagement portion) protruding from the inner wall on both sides thereof. When the press fitting portion is press-fitted into the press fitting portion, A sphere may be provided.

According to this configuration, when the protruding portion is press-fitted, the fitting contact of the protruding portion is fitted to the fitting portion of the press-fitting portion, so that the socket contact and the header contact can be reliably connected.

Further, in the present invention, the socket body may be formed by insert molding using the socket contact as an insert material, and the contact portion of the socket-side connecting portion may be covered with a plating which is performed after formation of the socket body.

According to this structure, since the contact portion is plated after the portion other than the contact portion of the socket-side connection portion is covered by the socket body, the plating film can be easily formed only on the contact portion. As a result, the cost of the plating material necessary for forming the plating film for maintaining good electrical contact with the socket-side connecting portion can be greatly reduced.

According to the present invention, the header body and the socket body have respective guide surfaces guiding each other in the press-in direction, and one and the other of the header body and the socket body respectively have a corresponding header body and a socket body And may have a portion that relatively moves and functions as a point at which the lock mechanism for pushing-in is pivoted and a point at which a force for causing the movement by the rotation of the lock mechanism is applied.

According to this configuration, after the socket and the header are positioned close to each other so that the protruding portion of each corresponding header contact is inserted into the inserting portion of the inserting hole of each socket contact, the above-described locking mechanism is moved to the above- The projecting portions of the header contacts can be press-fitted into the press-fitting portions of the corresponding insertion holes of the respective socket contacts by rotating the header and the socket together.

Further, in the present invention, the header body and the socket body have respective guide surfaces guiding each other in the press-in direction, and the socket relatively moves the header body and the socket body along the guide surface, And the lock mechanism is provided, and the lock mechanism is constituted by two long plate members connected to the basic end, and by lifting the two plate members, the tip end of the plate member closes to release the upward force, And an insertion surface for inserting the side surface of the header body along the guide surface in the insertion direction is provided at the tip of one of the plate members, and at the tip of the other plate member, Is provided with an insertion surface for inserting a side surface of the guide portion And an insertion surface for inserting the socket body toward the header body may be provided at the tip of the other plate-shaped member, adjacent to the insertion surface.

According to this, it is possible to easily connect the socket to the header simply by disposing each inserting surface of the locking mechanism on the corresponding side portion of the header body and the socket body, and raising the locking mechanism.

In the present invention, the socket-side connecting portion may have a short circuit for facilitating the press-fitting of the press-fitting portion. According to this, when the projecting portion of the header is press-fitted into the press-in portion, the short-circuit portion of the socket-side connecting portion is easily enlarged, so that the press-in can be smoothly performed. Therefore, connection between the socket and the header is facilitated.

In the present invention, the width of the press-fit portion of the insertion fixing hole may be small on the side of the insertion portion and large on the opposite side of the insertion portion.

According to this, when the head and the socket are connected to each other, the protrusion of the header contact press-fitted into the press-in portion of the insertion hole of the socket contact is prevented from deviating from the press-in portion, and the connection between the head and the socket can be reliably maintained.

An inter-board connector according to the present invention is a board-to-board connector having a header mounted on a circuit board and a socket mounted on another circuit board, and electrically connecting both circuit boards. The socket is provided with the above- A plurality of conductive header contacts arranged at the same pitch as the socket contacts in the socket and an insulating resin-made header body for supporting the plurality of header contacts, wherein each header contact has a protruding portion And the header side connecting portion of each header contact is covered with the resin of the header body except for the contact portion within the predetermined range including the protruding portion.

According to the present invention, since the header-side connecting portion of each header contact is covered with the resin of the header body except for the contact portion, the header strength of the header contact can be increased and the insulation between adjacent header contacts can be maintained well. As a result, it is possible to more easily achieve a reduction in the pitch of the inter-substrate connector and a reduction in pitch.

In the inter-board connector of the present invention, the projecting portion includes a pawl portion that prevents the projecting portion from being pulled out from the press-fit portion when the pawl is press-fitted into the press-fit portion of the insertion hole of the socket contact, And may be continuous in the press-in direction from the front end of the projection to the press-in portion.

According to this, when the projecting portion is press-fitted into the press-fitting portion, the claw portion is protruded beyond the rim of the press-fit portion onto the surface of the socket contact around the press-fitting portion. Therefore, it is possible to effectively prevent the protruding portion from being pulled out from the press-in portion in the protruding direction by the claw portion in this state.

The present invention provides an inter-substrate connector capable of easily attaining a low-pitch and pitch narrowing.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a diagram showing an embodiment in which a circuit board is connected by an inter-board connector according to the first embodiment of the present invention. Fig.
Fig. 2 (a) is a plan view of the header of the inter-board connector of Fig. 1, Fig. 2 (b) is a side view of the header, Fig.
3 is a perspective view of a locking mechanism used in the inter-board connector of Fig. 1;
Fig. 4 (a) is a plan view of a header contact of the inter-board connector of Fig. 1, Fig. 4 (b) is a side view thereof, Fig. 4 (c) is a plan view of another header contact and Fig.
Fig. 5 (a) is a cross-sectional view taken along line BB of Fig. 1 (a), Fig. 5 FIG.
Fig. 6A is a plan view of the socket contact 19a of the inter-board connector of Fig. 1, Fig. 6B is a side view thereof, Fig. 6C is a plan view of the socket contact 19b of the inter- ) Is a side view thereof.
Fig. 7 (a) is a partially enlarged plan view of the socket of the inter-board connector of Fig. 1, and Fig. 7 (b) is a sectional view taken along line BB of Fig.
Fig. 8 (a) is a cross-sectional view showing an example in which a slit passing through a socket body is provided in parallel to a side surface of a socket-side connecting portion of the socket in Fig. 7, and Fig. 8 (b) is a plan view showing another example of a socket-
Fig. 9 is a view showing a method of connecting a header and a socket using a locking mechanism shown in Fig. 3 and releasing the connection. Fig. 9 (a) and (b) Indicates the way to disconnect.
10 is a view showing a positional relationship between a protruding portion of a header contact and an inserting / fixing hole of a socket contact when a header and a connector are connected to each other, FIG. 10A is a diagram showing the shape of the inserting / (B) shows a state in which the projecting portion is located at the insertion portion of the insertion / insertion hole.
11 is a view showing a portion related to a header contact in the manufacturing process of the header of the inter-board connector of FIG.
12 is a view showing a portion related to a socket contact in the manufacturing process of the socket of the inter-board connector of FIG. 1;
Fig. 13A is a plan view of a header of an inter-board connector according to a second embodiment of the present invention, Fig. 13B is a side view thereof, Fig. 13C is a cross- a) is a cross-sectional view taken along the line DD of Fig.
Fig. 14A is a plan view of a header contact of Fig. 13, Fig. 14B is a side view thereof, Fig. 14C is a plan view of another header contact, and Fig.
Fig. 15A is a plan view of a socket of an inter-board connector according to a second embodiment, Fig. 15B is a sectional view taken along line BB in Fig. 15A, Is a cross-sectional view taken along line DD of (a).
Fig. 16 (a) is a front view of a locking mechanism used for connecting the header of Fig. 13 and the socket of Fig. 15, and Fig. 16 (b) is a side view thereof.
Fig. 17 shows a method of connecting and disconnecting a header and a socket using the locking mechanism shown in Fig. 16, wherein (a) and (b) show a state of connection, and (c) and ) Indicates a state when the connection is released.
Fig. 18 shows the positional relationship between the protruding portion and the insertion fixing hole in the connection of Fig. 17, wherein (a) shows a state in which the protruding portion is located in the insertion portion of the insertion fixing hole, (b) And shows the shape when it is positioned at the insertion portion of the corresponding insertion hole.
19 is a view showing a positional relationship between a protruding portion of a header contact and an insertion fixing hole of a socket contact when an inter-board connector according to a third embodiment of the present invention is connected, (B) shows a shape when the projecting portion is located at the insertion portion of the insertion / insertion hole.
Fig. 20 (a) is a cross-sectional view of a part of a socket provided with the socket contact of Fig. 19, and Fig. 20 (b) is a cross-sectional view showing the same cross section as (a) when the socket is formed by injection molding.
Fig. 21A is a plan view of the socket of the inter-substrate connector according to the fourth embodiment, Fig. 21B is a sectional view taken along the line BB in Fig. 21A, ) Is a DD line sectional view of (a).
22 (a) is an enlarged plan view of a part of the socket of Fig. 21, and Fig. 22 (b) is a sectional view taken along the line BB of Fig.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 shows a circuit board connected by an inter-board connector according to a first embodiment of the present invention. Fig. As shown in Fig. 1, the inter-board connector 1 has a header 3 mounted on a circuit board 2 and a socket 5 mounted on another circuit board 4. [ Both the circuit boards 2 and 4 are electrically connected by the connection of the header 3 and the socket 5. [

Fig. 2 (a) is a plan view of the header 3. Fig. Fig. 2 (b) is a side view of the header 3. Fig. 2 (c) is a sectional view taken along the line C-C in Fig. 2 (a). 2 (d) is a sectional view taken along the line D-D in Fig. 2 (a). 2 (a), the side of the header 3 on the side of the socket 5 is shown. The socket 5 is fixed to the side of the socket 5 and the connection between the header 3 and the socket 5 is established.

2, the header 3 includes a plurality of conductive header contacts 6a and 6b arranged at a predetermined pitch P in the direction perpendicular to the longitudinal direction, and a plurality of header contacts 6a and 6b And an insulating header body (7). The pitch P may be, for example, 0.35 mm.

Here, the header contacts 6a and 6b are arranged in two rows and twelve rows so that the header contacts 6a in one row and the header contacts 6b in the other row are arranged symmetrically. Each of the header contacts 6a and 6b is covered with an insulating resin constituting the header body 7 except for a predetermined portion.

The header body 7 has a substantially plate-like shape having a predetermined length, width, and thickness (height). The longitudinal direction and the width direction of the header body 7 coincide with each other in the column direction and the row direction of the arrangement of the header contacts 6a and 6b. The header contacts 6a and 6b are continuous in the width direction of the header body 7. [

Header side engaging portions 8a and 8a for fixing the socket 5 to the header 3 are formed on the side surfaces of the socket body 5 at both ends in the longitudinal direction of the header body 7 when the header 3 and the socket 5 are connected. 8b and four supporting walls 10a to 10d constituting points of rotation of the locking mechanism 9 as shown in Fig.

The header side engagement portions 8a and 8b have a shape in which a width and a cross section parallel to the thickness direction of the header body 7 protrude in an L shape on the plate surface of the header body 7. [ The header side engaging portions 8a and 8b have a function of fixing the socket 5 to the header 3 in conformity with the socket side engaging portions 21a and 21b (see Figs. 5A and 5C) .

The support walls 10a to 10d are provided in the vicinity of the four corners of the header body 7, respectively. The width of each of the support walls 10a to 10d is set such that the two support walls 10a and 10b on one side in the width direction of the header body 7 are opposed to the two support walls 10c and 10d on the other side, The wall surface is installed perpendicular to the width direction. The locking mechanism 9 is used to move the socket 5 disposed on the side of the socket 5 of the header 3 in the width direction of the header 3 when the header 3 and the socket 5 are connected .

Notch inner walls 11a and 11b are provided adjacent to the two support walls 10a and 10b on one side in the width direction of the header body 7, respectively. The notch inner walls 11a and 11b are inclined with respect to the longitudinal direction perpendicular to the plate surface of the header body 7. [ The notch inner walls 11a and 11b move together with the notch outer walls 23a and 23b (see FIG. 5A) of the socket 5 to be described later to easily recognize the directionality of the socket 5 with respect to the header 3 .

The side surface of the header body (7) on the socket (5) constitutes a guide surface (12) for guiding the socket (5) in the direction along the plate surface. Guide surfaces 13 for guiding the socket 5 in the width direction of the header body 7 are provided adjacent to the notch inner walls 11a and 11b at both longitudinal ends of the header body 7. [ The socket 5 is guided by the guide surface 12 and the guide surface 13 in the direction of connecting to the header 3 when the header 3 and the socket 5 are connected.

The header body (7) is provided with two rectangular holes (14) penetrating in the thickness direction thereof. Each of the rectangular holes 14 is provided over the arrangement range in accordance with the arrangement direction of each of the header contacts 6a and 6b. Each of the rectangular holes 14 corresponds to the contact portion 18 (see Fig. 4) described later in the header contacts 6a and 6b of each column.

4 (a) is a plan view of the header contact 6a, and Fig. 4 (b) is a side view thereof. 4 (c) is a plan view of the header contact 6b, and Fig. 4 (d) is a side view thereof. 4, the header contacts 6a and 6b all have a board connecting portion 15 connected to the circuit board 2 (see Fig. 1) and a header connecting portion 16 connected to the socket 5 . The header side connecting portion 16 is provided with a protruding portion 17 protruding toward the socket 5 side.

The header side connecting portion 16 is covered with the resin of the header body 7 except for the contact portion 18 within the predetermined range including the protruding portion 17 (see Figs. 2 (a) and 2 (d)). The portion adjacent to the header side connecting portion 16 between the header side connecting portion 16 and the substrate connecting portion 15 is also covered with the resin of the header body 7. [ The header body 7 is formed by insert molding using the header contacts 6a and 6b as an insert material. The contact portion 18 is covered with gold plating, which is performed after formation of the header body 7.

The board connecting portion 15 protrudes slightly toward the circuit board 2 from the side of the circuit board 2 side of the header body 7 so that the side of the circuit board 2 can be connected to the circuit of the circuit board 2 (See Fig. 2 (d)). The surface of the contact portion 18 on the side of the socket 5 excluding the projecting portion 17 is positioned substantially on the same plane as the guide surface 12 of the header body 7. [

The portion between the board connecting portion 15 and the contacting portion 18 of the header contacts 6a and 6b and the portion closer to the leading end side than the contacting portion 18 contact the board connecting portion 15 and the contacting portion 18 in the thickness direction of the header body 7 18, the header contacts 6a, 6b are each bent into a plane perpendicular to the longitudinal direction of the header body 7 at six positions.

Fig. 5 (a) is a plan view of the socket 5. Fig. 5 (b) is a sectional view taken along the line B-B in Fig. 5 (a). 5 (c) is a sectional view taken along the line C-C in Fig. 5 (a). And Fig. 5 (d) is a sectional view taken along the line D-D in Fig. 5 (a).

5, the socket 5 has a plurality of conductive socket contacts 19a and 19b arranged in the pitch P as in the case of the header contacts 6a and 6b in the direction perpendicular to the longitudinal direction thereof, and a plurality of socket contacts 19a and 19b, And an insulative socket body 20 for supporting the terminals 19a and 19b.

The socket contacts 19a and 19b are arranged in two rows and twelve rows so as to correspond to the header contacts 6a and 6b, respectively, and the directions of the socket contacts 19a and 19b in each row are symmetrical. Each of the socket contacts 19a and 19b is covered with an insulating resin constituting the socket body 20 except for a predetermined portion.

The socket body 20 has a substantially plate-like shape of a predetermined length, width, and thickness (height). The longitudinal direction and the width direction of the socket body 20 coincide with the column direction and the row direction of the arrangement of the socket contacts 19a and 19b, respectively. The socket contacts 19a and 19b are continuous in the width direction of the socket body 20.

Socket-side engagement portions 21a and 21b for fixing the socket 5 to the header 3 and socket body 20 are provided at both ends of the socket body 20 at the time of connecting the header 3 and the socket 5. [ And the side wall of the portion where the width of the narrowed portion is narrowed. The stepped portions 22a to 22d correspond to the four support walls 10a to 10d of the header body 7, respectively.

A corner portion of the socket body 20 adjacent to the stepped portions 22a and 22b corresponding to the support walls 10a and 10b of the header body 7 among the four stepped portions 22a to 22d Two notch outer walls 23a and 23b respectively corresponding to the notch inner walls 11a and 11b are provided.

The lower end portions 9a and 9b (see Fig. 3) of the lock mechanism 9 are provided between the step portions 22a and 22b and the support walls 10a and 10b when the header 3 and the socket 5 are connected, So that the header 3 and the socket 5 are relatively moved in the connection direction. Two lower ends 9a and 9b of the lock mechanism 9 are inserted between the stepped portions 22c and 22d and the support walls 10c and 10d when the connection between the header 3 and the socket 5 is released, So that the header 3 and the socket 5 are relatively moved in the release direction.

The socket side engagement portions 21a and 21b are provided on the header side engagement portions 8a and 8b so as to coincide with the header side engagement portions 8a and 8b when the header 3 and the socket 5 are moved in the connection direction, Sectional shape in the opposite direction.

The socket side engagement portions 21a and 21b are formed in the notch outer walls 23a and 23b with respect to the insertion holes 24a and 24b in which the header side engagement portions 8a and 8b are inserted when the header 3 and the socket 5 are connected, As shown in Fig. The socket side engagement portions 21a and 21b have a function of fixing the socket 5 to the header 3 by engaging with the header side engagement portions 8a and 8b.

The header 3 side surface of the socket body 20 constitutes a guide surface 25 corresponding to the guide surface 12 of the header body 7. Both longitudinal ends of the header body 7 constitute a guide surface 26 corresponding to the guide surface 13 of the header body 7. [ When the header 3 and the socket 5 are connected to each other, the socket 5 is guided in the direction of connecting the header 3 via the guide surfaces 12, 13, 25 and 26.

The socket body (20) is provided with a plurality of elliptical holes (27) penetrating in the thickness direction thereof. Each elliptical hole 27 is provided corresponding to a contact portion 32 (see Fig. 6) of each socket contact 19a and 19b described below.

6 (a) is a plan view of the socket contact 19a, and Fig. 6 (b) is a side view thereof. Fig. 6 (c) is a plan view of the socket contact 19b, and Fig. 6 (d) is a side view thereof. 6, the socket contacts 19a and 19b all have a planar socket-side connection portion 28 continuous in the longitudinal direction and parallel to the arrangement direction in the column direction, And a board connecting portion 29 connected to the board connecting portion 29. The socket-side connecting portion 28 has side surfaces 30 on both sides orthogonal to the column direction. The socket-side connecting portion (28) is provided with an insertion fixing hole (31) penetrating in the thickness direction thereof and continuing in the longitudinal direction thereof.

The insertion fixing hole 31 has an insertion portion 31a into which the protrusion 17 of the corresponding header contacts 6a and 6b is inserted and a protrusion 17 inserted into the insertion portion 31a, And a press-in portion 31b which is press-fitted by moving in the longitudinal direction of the press-in portion 31b.

The width of the press-in portion 31b of the insertion fixing hole 31 is small on the side of the insertion portion 31a and large on the opposite side of the insertion portion 31a. In other words, the width of the portion 31c that moves from the insertion portion 31a of the insertion fixing hole 31 to the press-fitting portion 31b is narrowed once. The width of the portion that has moved to the press-in portion 31b is greatly increased, and the width from the portion to the middle portion of the press-in portion 31b is constant. And gradually extends from the intermediate portion to the inside of the protrusion 17 to the width of the protrusion 17.

In the socket contacts 19a and 19b arranged in two rows, the socket contacts 19a of one row and the socket contacts 19b of the other row are opposite to each other. However, the socket contacts 19a and 19b of the two rows, The press-in portion 31b is present in the hole 31 in the same direction with respect to the insertion portion 31a.

The socket side connecting portion 28 is covered with the resin of the socket body 20 except for the contact portion 32 within the predetermined range from the insertion fixing hole 31 so that the resin between the adjacent socket side connecting portions 28 is filled with the resin 5 (a), (b), and (d)). The portion of the socket body 20 adjacent to the socket side connecting portion 28 between the socket side connecting portion 28 and the board connecting portion 29 is also covered with the resin of the socket body 20.

The socket body 20 is formed by insert molding using the socket contacts 19a and 19b as an insert material. The contact portion 32 is covered with gold plating which is performed after formation of the socket body 20.

The board connecting portion 29 protrudes slightly toward the circuit board 4 from the side of the circuit board 4 of the socket body 20 so that the side of the circuit board 4 can be connected to the circuit of the circuit board 4 (See Fig. 5 (c)). The socket-side connecting portion 28 is located between both sides of the socket body 20. [ The socket contacts 19a and 19b are bent into a plane perpendicular to the longitudinal direction of the socket body 20 at two places so that the socket side connection portion 28 is located at this position.

Fig. 7 (a) is an enlarged plan view of a part of the socket 5. Fig. 7 (b) is a sectional view taken along the line B-B in Fig. 7 (a). 7, a portion of the socket body 20 between the adjacent socket-side connecting portions 28 absorbs deformation of the socket body 20 by press-fitting the protruding portion 17 into the press-fitting portion 31b Grooves 33 are provided. The groove 33 is parallel to the longitudinal direction of the insertion fixing hole 31 and has a V-shaped cross section. The groove 33 prevents the portion of the socket body 20 from expanding after the above-described projection 17 is press-fitted.

8A, the slits 34 are formed as a through-hole through the socket body 20 in parallel to the side surface 30 of the socket-side connecting portion 28, May be performed by the slit 34 as shown in Fig.

Figs. 9 (a) to 9 (d) show a method of connecting the header 3 and the socket 5 using the locking mechanism 9 of Fig. 3 and releasing the connection. 10 (a) and 10 (b) show the positional relationship between the projecting portion 17 of the header contacts 6a and 6b and the insertion hole 31 of the socket contacts 19a and 19b, ), As shown in FIG. In addition, the projecting portion 17 is shown in cross section.

9A, the projecting portions 17 of the header contacts 6a and 6b are inserted into the insertion portions 31a of the corresponding insertion holes 31 of the corresponding socket contacts 19a and 19b, The state in which the engaging portions 8a and 8b are inserted into the insertion holes 24a and 24b of the socket body 20 and the header 3 and the socket 5 are not connected are displayed.

The header 3 and the socket 5 are arranged between the support walls 10a and 10b on the side of the notch inner walls 11a and 11b and the step portions 22a and 22b on the side of the notch outer walls 23a and 23b, A gap of the width D1 is formed and a gap of two widths D2 is formed between the opposite side support walls 10c and 10d and the stepped portions 22c and 22d.

The width D1 is a width suitable for inserting the lower end portion 9a or 9b of the lock mechanism 9 into the gap of the width D1. The width D2 is a width obtained by adding the distance for moving in the connection direction in the state of Fig. 9 (a) in order to establish connection between the header 3 and the socket 5 with respect to the width D1.

2 (a) of the header 3 and the side of the socket 5 shown in Fig. 5 (a), when the header 3 and the socket 5 are connected to each other, Respectively. The protruding portions 17 of the header contacts 6a and 6b are inserted into the inserting portions 31a of the inserting holes 31 of the corresponding socket contacts 19a and 19b and the header side engaging portions 8a 8b (see Fig. 2) are inserted into the insertion holes 24a and 24b (see Fig. 5) of the socket body 20, respectively.

Thus, the header 3 and the socket 5 are in the state shown in Fig. 9 (a). That is, a gap of the above-mentioned width D1 and a gap of the width D2 are formed. The header side engaging portions 8a and 8b inserted in the insertion holes 24a and 24b are opposed to the socket side engaging portions 21a and 21b (see Fig. 5), respectively. 10 (a), the protruding portion 17 inserted into the insertion portion 31a of the insertion fixing hole 31 is inserted into the insertion hole 31 in the lengthwise direction of the insertion fixing hole 31, The side surface on the short side of the insertion portion 31a penetrates through the insertion portion 31a in the direction of the press-in portion 31b.

Next, as shown in Fig. 9 (a), the lower end portions 9a and 9b of the lock mechanism 9 are respectively inserted into the gap of the two widths D1. Next, as shown in Figs. 9 (a) and 9 (b), the lock mechanism 9 is rotated toward the socket 5 side.

The lower ends 9a and 9b of the locking mechanism 9 are supported by the support walls 10a and 10b of the header 3 and the adjacent portions of the guide surface 12 so that the lower ends 9a and 9b of the locking mechanism 9 Of the socket body 20 press the edge portions opposite to the header 3 of the stepped portions 22a and 22b. That is, the adjacent portion functions as a point when the socket 5 is moved by the rotation of the lock mechanism 9, and the end portion functions as a point of action where a force for generating the movement is given.

The locking mechanism 9 is rotated so that the header side engaging portions 8a and 8b are aligned with the socket side engaging portions 21a and 21b respectively so that the projecting portions 17 of the header contacts 6a and 6b are engaged with the corresponding socket And is pressed into the press-fitting portion 31b of the contacts 19a and 19b. 9 (b), and the connection between the header 3 and the socket 5 is completed.

At this time, the protruding portion 17 press-fitted into the press-in portion 31b passes through the press-in portion 31b as shown in Fig. 10 (b). The width of the projection 17 is wider than the width of the portion 31c from the insertion portion 31a to the press-in portion 31b.

In this state, since the original width of the press-in portion 31b is slightly smaller than the width of the protrusion 17, the press-in portion 31b is pressed in the press-in portion 31b of the protrusion 17, Press slightly to enlarge. 10 (b), the protruding portion 17 is less likely to fall in the direction of the insertion portion 31a by the portion 31c where the width between the insertion portion 31a and the press-in portion 31b is narrowed .

So that each of the header contacts 6a and 6b is securely connected to the corresponding socket contacts 19a and 19b. That is, as shown in Fig. 1, the connection between the circuit board 2 on which the header 3 is mounted and the other circuit board 4 on which the socket 5 is mounted is completed.

The width between the support walls 10a and 10b and the stepped portions 22a and 22b is widened to the width D2 in the width D1 described above and the distance between the support walls 10c and 10d on the opposite side, The width between the portions 22c and 22d decreases from the above-described width D2 to the width D1.

The lower end portions 9a and 9b of the lock mechanism 9 are respectively held by the support walls 10c and 10d and the stepped portions 9b and 9b of the lock mechanism 9 as shown in Figure 9 (c) Is inserted into the gap of the two widths D1 between the first and second ends 22c and 22d. Next, as shown in Figs. 9 (c) and 9 (d), the lock mechanism 9 is rotated toward the socket 5 side.

The lower end portions 9a and 9b of the lock mechanism 9 are supported by the support walls 10c and 10d of the header 3 and the adjacent portions of the guide surface 12 so that the lower end portions 9a and 9b of the lock mechanism 9 9b push the edge portions of the stepped portions 22c and 22d of the socket body 20 opposite to the header 3. That is, the adjacent portion functions as a point when the socket 5 is moved by the rotation of the lock mechanism 9, and the end portion functions as a point of action where a force for causing the movement is given.

9 (d), the head-side engaging portions 8a and 8b and the socket-side engaging portions 21a and 21b are released from being engaged with each other, and the respective header contacts 6a and 6b, The projecting portions 17 of the socket contacts 19a and 19b move from the press-fitting portion 31b of the corresponding socket contacts 19a to the insertion portion 31a until the press-fitting is released.

Thus, the connection between the header 3 and the socket 5 is released, so that the header 3 and the socket 5 can be separated from each other. That is, the state shown in Fig. 9 (a) is established and the connection between the circuit board 2 and the other circuit board 4 is released. 10 (a), each of the projections 17 moves to the position through which the corresponding insertion hole 31a of the corresponding insertion hole 31 passes, so that the header 3 and the socket 5 can be easily Can be separated.

Fig. 11 shows the parts related to the header contacts 6a and 6b in the manufacturing process of the header 3. Fig. 11, the manufacturing process of the header 3 is performed by drilling the portion 36 and the metal carrier 37 which become the header contacts 6a and 6b in the metal plate 35, A step of press-working in the shape of the header contacts 6a and 6b in Fig. 4, and a step of gold plating the plating portions 38 and 39. [ Further, the gold plating is performed after the header body 7 is formed.

The protruding portion 17 of the header 3 is formed by bending the portion of the header 3 that becomes the protruding portion 17 formed when the metal carrier 37 is pierced by 90 deg. The plating portion 38 is a portion to be the substrate connecting portion 15. [ The plating portion 39 is a portion to be the contact portion 18 of the header side connecting portion 16.

After the above-mentioned press working is performed, the metal plate 35 is cut in a range corresponding to one header 3, and is provided for insert molding, and the header body 7 is formed. At that time, the metal carrier 37 is used to position the header contacts 6a and 6b to be inserted with respect to the molding die. Thereafter, the above-described gold plating is performed, and the metal carrier 37 is cut. Thus, the manufacture of the header 3 is completed.

Fig. 12 shows a part related to the socket contacts 19a and 19b in the manufacturing process of the socket 5. Fig. As shown in Fig. 12, the manufacturing process of the socket 5 pierces the portion 40 and the metal carrier 41 which become the socket contacts 19a and 19b in the metal plate 35. There is provided a step of pressing the corresponding portion 40 to the shape of the socket contacts 19a and 19b of Fig. 6 and plating the plating portions 42 and 43 with gold plating.

The plating portion 42 is a portion to be the substrate connecting portion 29. The plating portion 43 is a portion to be the contact portion 32 of the socket-side connecting portion 28. Further, the gold plating is performed after the socket body 20 is formed.

After the above-described press working is performed, the metal plate 35 is cut in a range corresponding to one socket 5, provided for insert molding, and the socket body 20 is molded. At that time, the metal carrier 41 is used to position the socket contacts 19a and 19b to be inserted with respect to the molding die. Then, the above-described gold plating is performed, and the metal carrier 41 is cut. Thus, the manufacture of the socket 5 is completed.

As described above, according to this embodiment, the socket contacts 19a and 19b have a simple socket-side connection portion 28 in which only the insertion fixing hole 31 is provided in a plate shape extending in the longitudinal direction thereof. It is sufficient that the header contacts 6a and 6b also have the protruding portions 17 only. Therefore, it is possible to easily achieve an improved lowering of the inter-board connector 1 and narrowing of the pitch.

The header side connecting portions 16 of the header contacts 6a and 6b are covered with the resin of the header body 7 except for the contacting portions 18 and the socket side connecting portions 28 of the socket contacts 19a and 19b Is covered with the resin of the socket body (20) except for the contact portion (32). The support strengths of the header contacts 7a and 6b of the header contacts 6a and 6b and the support strength of the socket contacts 20a of the socket contacts 19a and 19b are increased and the adjacent header contacts 6a and 6b, And the insulation between the socket contacts 19a and 19b can be maintained well. Thus, improved lowering and narrowing of the pitch can be achieved more easily.

Since the header contacts 6a and 6b and the socket contacts 19a and 19b are covered with the resin except for the necessary portions, the header 3 or the socket 5 is mounted on the circuit boards 2 and 4, respectively Even if dust enters the header 3 or the socket 5, the insulation property is not damaged.

The protruding portions 17 of the header contacts 6a and 6b are pressed into the press-in portions 31b of the socket contacts 19a and 19b in the socket body 20 between adjacent socket-side connecting portions 28, The groove 33 or the slit 34 for absorbing deformation of the socket body 20 is provided to prevent the socket body 20 from bulging and smoothly press the socket body 20. [ Therefore, it is possible to further promote the narrowing of the pitch.

The socket body 20 is formed by insert molding with the socket contacts 19a and 19b as an insert material and then the contact portion 32 of the socket side connection portion 28 is coated with plating so that only the contact portion 32 is plated The coating film can be easily formed, and the cost of the plating material can be greatly reduced.

A point at which the locking mechanism 9 for moving the header body 7 and the socket body 20 relative to the header body 7 and the socket body 20 is rotated and the position at which the locking mechanism 9 The protruding portions 17 of the header contacts 6a and 6b can be easily inserted into the press fitting portions 31b of the corresponding socket contacts 19a and 19b ).

The width of the press-in portion 31b of the insertion fixing hole 31 is small on the side of the insertion portion 31a and large on the opposite side of the insertion portion 31a so that the protruding portion 17 of the press-fitted header contacts 6a and 6b It is possible to prevent the head 3 from deviating from the press-in portion 31b and securely maintain the connection between the header 3 and the socket 5. [

13 (a) is a plan view of a header 103 of a board-to-board connector according to a second embodiment of the present invention. Fig. 13 (b) is a side view of the header 103. Fig. 13 (c) is a sectional view taken along the line C-C in Fig. 13 (a). And Fig. 13 (d) is a sectional view taken along the line D-D in Fig. 13 (a).

The header body 107 of the header 103 has a structure in which the header side engaging portions 121a and 121b are additionally provided in addition to the header side engaging portions 8a and 8b and the point where the supporting walls 10a- Is the same as the header body 7 of the first embodiment.

The header side engaging portions 121a and 121b are formed by inserting the other side engaging portion in the insertion holes 124a and 124b in the same manner as the socket side engaging portions 21a and 21b of the socket body 20 of the first embodiment, And is configured to coincide with the engaging portion. The reason for deleting the support walls 10a to 10d is that, in the second embodiment, a lock mechanism different from the lock mechanism 9 in Fig. 3 is used for connection of the inter-substrate connector.

Fig. 14 (a) is a plan view of a header contact 106a provided with a header 103, and Fig. 14 (b) is a side view thereof. Fig. 14 (c) is a plan view of the header contact 106b having the header 103, and Fig. 14 (d) is a side view thereof.

As shown in Fig. 14, the header contacts 106a and 106b are connected to the tip end of the projecting portion 17 on the side of the substrate connecting portion 15 and the tip end side of the header contact 106b, respectively (continuous in the push-in direction). The header contacts 6a and 6b of the header 3 of the first embodiment have the same configuration as the header contacts 6a and 6b except that the claw portions 17a are provided. Also, the header contacts 106a and 106b are supported by the header body 107, as in the case of the header contacts 6a and 6b.

15 (a) is a plan view of a socket 105 of a board-to-board connector according to the second embodiment. 15 (b) is a sectional view taken along the line B-B in Fig. 15 (a). 15 (c) is a sectional view taken along the line C-C in Fig. 15 (a). 15 (d) is a sectional view taken along the line D-D in Fig. 15 (a).

As shown in Fig. 15, the socket body 120 of the socket 105 has the same structure as that of the first embodiment except that the socket side engagement portions 108a and 108b are additionally provided in addition to the socket side engagement portions 21a and 21b. The socket body 20 and the like.

Similar to the header side engagement portions 8a and 8b of the first embodiment, the socket side engagement portions 108a and 108b have a shape protruding in an L shape and coincide with the header side engagement portions 121a and 121b. Other points of the socket 105 are the same as those of the socket 5 of the first embodiment.

16A and 16B are a front view and a side view of a lock mechanism 109 used for connecting the header 103 and the socket 105. Fig. 16, the lock mechanism 109 has a tweezer-like shape in which each end of the two long plate members 110 and 111 is fastened with a bolt and a nut to form a basic end. That is, it has a function of returning to the original state by elastic force by releasing the lifting force by closing the tip end portion by lifting.

Two side inserting portions 110a and 110b for inserting both ends of the side surface along the longitudinal direction of the header body 107 through the insertion surface are provided at the tip end of the sheet member 110. [ Two stepped insertion portions 111a and 111b for inserting the stepped portions 22a and 22b or 22c and 22d of the socket body 120 through the insertion face are formed at the tip end of the plate- Two guide surface insertion portions 112a and 112b for inserting the guide surface 25 of the guide surface 120 are installed.

The respective insertion surfaces of the side insertion portions 110a and 110b and the insertion surfaces of the insertion portions 111a and 111b of the stepped portion are opposed to each other toward the inside direction of the lock mechanism 109. [ The respective insertion surfaces of the insertion portions 112a and 112b of the guide surfaces face the distal end direction of the lock mechanism 109 and are adjacent to each other at 90 degrees with respect to the respective insertion surfaces of the insertion portions 111a and 111b of the stepped portion. The side inserting portions 110a and 110b are located slightly closer to the distal end than the inserting portions 111a and 111b of the step portion.

17A to 17D show a method of connecting the header 103 and the socket 105 using the lock mechanism 109 and releasing the connection. Figs. 18A and 18B show the positional relationship between the protruding portion 17 of the header contacts 106a and 106b and the insertion hole 31 of the socket contacts 19a and 19b, As shown in FIG. In addition, the projection 17 is shown in cross-section.

When connecting the header 103 and the socket 105, first, the side of the header 103 shown in Fig. 13 (a) and the side of the socket 105 shown in Fig. 15 (a) Respectively. The projecting portions 17 of the header contacts 106a and 106b are inserted into the insertion portions 31a of the corresponding insertion holes 31 of the corresponding socket contacts 19a and 19b. 13) are inserted into the insertion holes 24a and 24b (see Fig. 15) of the socket body 20, respectively, so that the socket side engagement portions 108a and 108b (see Fig. 15) are inserted into the insertion holes 124a and 124b (see Fig. 13) of the header body 107, respectively.

Thus, the header 103 and the socket 105 are in the state shown in Fig. 17 (a). At this time, the projecting portion 17 inserted into the insertion portion 31a of the insertion fixing hole 31 passes through the insertion portion 31a as in the case of the first embodiment as shown in Fig. 18 (a).

17 (a), the guide surfaces 25 of the socket body 120 are pushed to the header 103 side with the insertion portions 112a and 112b of the guide surfaces of the lock mechanism 109, The inserting surfaces of the inserting portions 111a and 111b are brought into contact with the stepped portions 22a and 22b of the socket body 120 and the inserting surfaces of the side inserting portions 110a and 110b are inserted into the header body 107 To the side of the header contact 106b side.

Next, as shown in Figs. 17A and 17B, the locking mechanism 109 is operated in the closing direction, and the headers 103 and the sockets 105 are moved relative to the respective guide surfaces 12 and 25 .

This relative movement is such that the header side engaging portions 8a, 8b, 121a and 121b coincide with the socket side engaging portions 21a, 21b, 108a and 108b and the projecting portions 17 of the respective header contacts 106a and 106b And is press-fitted into the press-in portions 31b of the corresponding socket contacts 19a and 19b. Thereby, the state shown in Fig. 17 (b) is reached, and the connection between the header 103 and the socket 105 is completed.

At this time, the protruding portion 17 press-fitted into the press-in portion 31b is in a state of passing through the press-in portion 31b as shown in Fig. 18 (b). In this state, as in the case of the first embodiment, the space between the inner and outer walls of the press-in portion 31b is slightly pressed and widened, and the protruding portion 17 becomes difficult to fall in the direction of the insert portion 31a. Since the pawl portion 17a at the tip end of the projection 17 protrudes beyond the edge of the inner edge of the insertion portion 31b and protrudes above the contact portion 32, the protrusion 17 is pushed from the press-in portion 31b to the socket- (The projecting direction of the projecting portion 17).

So that each of the header contacts 106a and 106b is securely connected to the corresponding socket contacts 19a and 19b. That is, the connection between the circuit board on which the header 103 is mounted and another circuit board on which the socket 105 is mounted is completed.

When the header 103 and the socket 105 are disconnected, the guide surface 25 of the socket body 120 is inserted into the header (not shown) with the insertion portions 112a and 112b of the guide surface of the lock mechanism 109, The respective insertion faces of the insertion portions 111a and 111b of the terminal portions are brought into contact with the stepped portions 22c and 22d of the socket body 120 and the insertion faces of the side insertion portions 110a and 110b, Is brought into contact with the side surface of the header body 107 on the header contact 106a side.

17 (c) and (d), the locking mechanism 109 is operated in the closing direction, and the header 103 and the socket 105 are moved relative to each other along the guide surfaces 12 and 25 .

This relative movement is canceled by the engagement of the header side engagement portions 8a, 8b, 121a and 121b and the socket side engagement portions 21a, 21b, 108a and 108b so that the projections 17 of the header contacts 106a and 106b, Is moved to the insertion portion 31a of the socket contacts 19a and 19b until the indentation is broken. Thereby, the state shown in Fig. 17 (d) is reached, and the release of the connection between the header 103 and the socket 105 is completed.

The manufacture of the header 103 and the socket 105 can be carried out in the same manner as described with reference to Figs. 11 and 12 for the header 3 and the socket 5 of the first embodiment. According to the second embodiment, an effect similar to that of the first embodiment can be obtained.

19 is a diagram showing the positional relationship between the protruding portion of the header contact and the inserting / fixing hole of the socket contact when the inter-board connector according to the third embodiment is connected. 19, except that the socket of the inter-board connector has a socket-side connecting portion 228 and a board connecting portion 229 which are somewhat different from the socket-side connecting portion 28 and the board connecting portion 29 of Fig. 6 And socket contacts 219a and 219b substantially identical to the socket contacts 19a and 19b of FIG.

The header of the inter-board connector has substantially the same shape as the header contacts 6a and 6b of Fig. 4 except that it has a protrusion 217 slightly different in shape from the protrusion 17 of Fig. However, in Fig. 19, only the cross section of the protrusion 217 of this header contact is shown.

The socket-side connecting portion 228 of the socket contacts 219a and 219b is provided with a contact portion 232 corresponding to the contact portion 32 shown in Fig.

The socket-side connecting portion 228 is provided with an insertion fixing hole 231 which is somewhat different in shape from the insertion fixing hole 31 of the socket contacts 19a and 19b of Fig. There is no narrowed portion 31c between the insertion portion 231a of the insertion fixing hole 231 and the press-in portion 231b, unlike the insertion fixing hole 31 of Fig.

Instead, an engaging portion 231c protruding in a V-shape at both side inner walls is provided at an intermediate portion in the longitudinal direction of the insertion fixing hole 231 in the press-fitting portion 231b. The protruding portion 217 of the header contact is provided with a V-shaped engagement hole 217a corresponding to the engagement portion 231c.

 20 (a) is a sectional view of a part of a socket provided with socket contacts 219a and 219b. This cross section is perpendicular to the longitudinal direction of the insertion fixing hole 231 and passes through the portion of the insertion portion 231a of the socket contact 219a or 219b.

20A, a gap A is provided between the side surface of the socket-side connecting portion 228 and the socket body 220. As shown in FIG. The gap A has a function of absorbing the deformation of the socket side connecting portion 228 when the protruding portion 217 of the header contact is press-fitted into the press-in portion 231b (see Fig. 19) of the socket side connecting portion 228. [ The width of the gap A may be, for example, 0.01 mm.

In addition, sloping surfaces 228a are provided at both side edges of the socket-side connecting portion 228 in the thickness direction in contact with the socket body 220. The inclined surface 228a corresponds to an arc-shaped arc and a linear arc-shaped arc. The inclined surface 228a may be a "dagger" formed when the socket contact 219a or 219b is formed by a so-called flat-pressing method in which a burr is not formed on both sides of the socket contact 219a or 219b.

The clearance A can be formed when the socket contacts 219a and 219b are inserted and the socket body 220 is injection molded. 20 (b), the insert 230 is inserted into the insertion hole 231 of the socket contacts 219a and 219b so that the insertion hole 231 is spaced apart in the width direction A by the gap A And the molding material is injected.

After the molding material has solidified, the insert 230 is pulled out. At this time, due to the elasticity of the socket contacts 219a and 219b, the socket-side connecting portion 228 contracts in the width direction by the gap A. Thereby, the gap A is formed. A slight gap is formed between the inner wall 220a of the socket body 220 and the corresponding inclined surface 228a in the thickness direction of the socket body 220 with respect to the retracting force.

When connecting the header to the socket of the inter-board connector, the protrusion 217 of the header contact is inserted into the insertion portion 231a of the corresponding socket contact 219a or 219b as shown in Fig. 19 (a) Leave. The header and the socket are relatively moved in a direction in which the protrusion 217 inserted into the insertion portion 231a is press-fitted into the press-in portion 231b adjacent to the insertion portion 231a. In this movement, the same techniques as those of the first and second embodiments can be used.

19 (b), the protruding portion 217 is press-fitted into the press-fitting portion 231b so that the fitting opening 217a of the protruding portion 217 fits into the fitting portion 231c of the press-fitting portion 231b. The socket side connecting portion 228 is deformed and widened in the width direction. At this time, since the deformation is absorbed by the gap A, deformation of the socket body 220 is suppressed by this deformation.

At this time, since there is a minute gap between the inclined surface 228a of the socket-side connecting portion 228 and the inner wall 220a of the socket body 220, the corner of the socket-side connecting portion 228 is caught by the inner wall 220a, Side connection portion 228 is not disturbed. When the press-fitting is completed, the connection between each header contact and the corresponding socket contact 219a or 219b is established and the connection with the header and socket is completed.

Since the gap A is provided between the side surface of the socket side connection portion 228 and the socket body 220 according to the third embodiment, the socket side connection portion 228 is enlarged to suppress deformation of the socket body 220 . Further, since the inclined surface 228a is provided at the corner of the side surface of the socket-side connecting portion 228, the socket-side connecting portion 228 can be enlarged smoothly so that the header and the socket can be connected with a small force.

Since the engaging portion 217a of the protruding portion 217 is fitted to the engaging portion 231c of the press-in portion 231b when the protruding portion 217 is press-fitted, the socket contact 219a or 219b and the header contact . Other points not mentioned in the third embodiment are similar to those in the first and second embodiments.

 21 (a) is a plan view of the socket 305 of the inter-board connector according to the fourth embodiment. 21 (b) is a sectional view taken along the line B-B in Fig. 21 (a). 21 (c) is a sectional view taken along the line C-C in Fig. 21 (a). And Fig. 21 (d) is a sectional view taken along the line D-D in Fig. 21 (a).

In this socket 305, socket contacts 319a and 319b, which are almost the same as the socket contacts 219a and 219b in Fig. 19, are used except that the inclined surface 228a is not provided as a socket contact. Since the socket-side connecting portion 328 is not provided with an inclined surface, it has a rectangular cross-section. The contact portion 332 of the socket side connection portion 328 is provided over the full width of the socket side connection portion 328, unlike the contact portion 232 of the socket contacts 219a and 219b of Fig.

 21, the socket body 320 of the socket 305 has socket-side engagement portions 321a and 321b having the same function as the socket-side engagement portions 21a and 21b of the socket body 20 of Fig. 5, . The socket side engagement portions 321a and 321b are provided with insertion holes 324a and 324b which are longer in the width direction of the socket body 320 than the insertion holes 24a and 24b attached to the socket side engagement portions 21a and 21b.

 Further, the socket 305 is provided with four recesses 325a to 325d which are long in the longitudinal direction. The recesses 325a and 325b are provided on the header side of the socket 305 and the recesses 325c and 325d are provided on the opposite side. The length of the recess 325a is slightly longer than the length of the socket contact 319a and the width thereof is slightly larger than the length of the insertion fixing hole 231 of the socket contact 319a and the length of the contact portion 332a of the socket contact 319a It matches the length. The depth of the concave portion 325a is a depth reaching the surface of the contact portion 332.

22 (a) is an enlarged plan view of a part of the socket 305. Fig. 22 (b) is a sectional view taken along the line B-B in Fig. 22 (a). The concave portion 325a is located on the contact portion 332 as shown in Fig.

 The concave portion 325b has the same shape as the concave portion 325a and is located on the contact portion 332 of the socket contact 319b. The recesses 325c and 325d are located behind the films of the recesses 325a and 325b, respectively, and have the same length and width as the recesses 325a. The depths of the recesses 325c and 325d are respectively the depths reaching the back surface of the contact portions 332 of the socket contacts 319a and 319b.

22 (b), the resin exists only between the socket-side connecting portions 328 of the adjacent socket contacts 319a, and the socket-side connecting portions 328 are provided at the portions between the bottoms of the recesses 325a and 325c, The bottom surface of the concave portion 325a and the bottom surface of the concave portion 325c. The same applies to the portion between the concave portion 325b and the bottom of the concave portion 325d.

That is, the socket body 320 has a range in the longitudinal direction ranging from one end side to the other end side of the array of the socket contacts 319a, and the range of the width direction is the range in which the contact portion 332 exists, In the thickness direction.

When the press-fitting portion 231b of the insertion fixing hole 231 is press-fitted into the insertion hole 231, the protrusion 217 of the header contact is thinned because the thickness of the socket body 320 between the socket contacts 319a and 319b becomes thin, The portion of the socket body 320 is easily deformed. Therefore, it is possible to perform indentation with a smaller force.

The concave portions 325a to 325d can be formed by injecting a molding material while holding the contact portions 332 of the socket contacts 319a and 319b with a metal mold corresponding to the shape.

Incidentally, other points not mentioned in the fourth embodiment of the present invention are similar to those of the first to third embodiments. In Figs. 21 and 22, the same elements as those of the first to third embodiments are denoted by the same reference numerals.

Incidentally, the present invention is not limited to the above-described embodiments. For example, a point at which the lock mechanism 9 for relatively moving the header body 7 and the socket body 20 is rotated is provided on the socket body 20, . The gold plating of the header contacts 6a and 6b or the socket contacts 19a and 19b may be performed before molding the header body 7 or the socket.

As shown in Fig. 8 (b), the socket-side connecting portion 28 may have a short circuit 31d for facilitating press-fitting into the press-fitting portion 31b. This short circuit corresponds to, for example, a slit-like shape provided from the front end of the socket-side connecting portion 28 to the front end side from the inner wall of the insertion fixing hole 31. [

 One… Inter board connector, 2,4 ... Circuit board, 3, 103 ... Header, 5, 105, 305 ... Socket, 6a, 6b, 106a, 106b ... Header contact, 7, 107 ... Header body, 9, 109 ... Lock mechanism, 17, 217 ... Protrusions, 17a ... Claw portions 19a, 19b, 217a ... 219a, 219b, 220a ... Slope, 231c ... An engaging portion, 319a, 319b ... Socket contacts, 20, 120, 320 ... Socket body, 28, 228, 328 ... Socket-side connecting portions, 31, 231 ... The insertion fixing holes 31a, 231a ... Insertion parts 31b, 231b ... 18, 32, 232, 332 ... Contact, 33 ... Home, 34 ... Slit, 12, 13, 25, 26 ... Guide surface, A ... Gap.

Claims (13)

A socket for an inter-board connector having a header mounted on a circuit board and a socket electrically connected to a header mounted on another circuit board,
The header includes a plurality of conductive header contacts arranged at a predetermined pitch and having protrusions protruding from the socket side and a header body for supporting the plurality of header contacts,
Wherein said socket has a plurality of electrically conductive header contacts having a long shape and arranged at the pitch in a direction perpendicular to the longitudinal direction thereof and a socket body made of an insulating resin for supporting said plurality of header contacts,
Each socket contact has a socket-side connecting portion continuous in the longitudinal direction thereof,
Wherein each socket-side connecting portion is provided with an insertion fixing hole penetrating in the longitudinal direction and a direction perpendicular to the arrangement direction and continuing in the longitudinal direction,
Each of the insertion fixing holes is composed of an insertion portion into which a protrusion of the corresponding header contact is inserted and a press-in portion into which the protrusion inserted into the insertion portion is press-fitted by moving in the longitudinal direction of the insertion-
Wherein each socket-side connecting portion is covered with a resin of the socket body except for a contact portion within a predetermined range in the inserting / fixing hole, and the resin is disposed between adjacent socket-side connecting portions. socket. The method according to claim 1,
And a groove or a through hole for absorbing the deformation of the socket body due to the press-fitting is provided in a portion of the socket body between the adjacent socket-side connecting portions. The method according to claim 1,
And a gap is provided between the side surface of the socket-side connecting portion and the socket body to absorb deformation of the socket-side connecting portion due to the press-fitting. The method of claim 3,
And a sloped surface is provided at a corner portion of the side surface of the socket-side connecting portion which is in contact with the socket body. The method according to claim 1,
The socket body is formed to have the same thickness as the thickness of the socket-side connecting portion in the range of the contact portion in the longitudinal direction of the socket contact from one end side to the other end side of the arranged socket connector To-board connector socket. The method according to claim 1,
Wherein engaging portions protruding from inner walls on both sides thereof are provided in the press-fitting portion of the insertion fixing hole, and protrusions of the header contacts are provided with engaging portions which are fitted to the engaging portions when the press- Socket of the liver connector. The method according to claim 1,
Wherein the socket body is formed by insert molding using the socket connector as an insert material, and the contact portion of the socket-side connecting portion is covered with a plating performed after formation of the socket body. The method according to claim 1,
Wherein the header body and the socket body have respective guide surfaces for guiding each other in the direction of the press-in, and one and the other of the header body and the socket body relatively move the header body and the socket body along the guide surface, respectively, And a portion that functions as a point of action to which a force for causing the movement in accordance with the rotation of the lock mechanism is applied. The method according to claim 1,
Wherein the header body and the socket body have respective guide surfaces guiding each other in the press-in direction,
The socket includes a locking mechanism for relatively moving the header body and the socket body along the guide surface to perform the press-fitting,
Wherein the lock mechanism is constituted by two long plate-shaped members having a basic end connected thereto,
The two plate members are lifted to close the tip end of the plate member and release the upward force so that the tip end of the plate member returns to its original state with elastic force,
An insertion surface for inserting the side surface of the header body along the guide surface in the press-fitting direction is provided at the tip of one of the plate-
And an insertion surface for inserting the side surface of the socket body along the guide surface in the press-in direction is provided at the tip of the other plate-
Wherein an insertion face for inserting the socket body adjacent to the insertion face in a direction of the header body is provided at the tip of the other plate member. The method according to claim 1,
And the socket-side connecting portion has a short-circuit for facilitating press-fitting into the press-fitting portion. The method according to claim 1,
Wherein a width of the press-fit portion of the insertion fixing hole is smaller on the side of the insertion portion and larger on the opposite side of the insertion portion. An inter-board connector having a header mounted on a circuit board and a socket mounted on another circuit board and electrically connecting both circuit boards,
Wherein the socket is provided with a socket according to any one of claims 1 to 11,
Wherein the header includes a plurality of conductive header contacts arranged at the same pitch as the socket contacts in the socket and an insulating resin-made header body for supporting the plurality of header contacts,
Each of the header contacts has a header-side connecting portion having a protruding portion protruding from the socket,
Wherein a header-side connecting portion of each header contact is covered with a resin of the header body excluding a contact portion within a predetermined range including the protruding portion. 13. The method of claim 12,
Wherein the protruding portion has a claw portion for preventing the protruding portion from being disengaged from the press-in portion in the protruding direction when the protruding portion is press-fitted into the press-in portion of the insertion hole of the socket contact,
And the pawl portion continues in the push-in direction from the tip end of the projecting portion to the press-fitting portion.

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