KR101175170B1 - Socket contact - Google Patents

Abstract

The problem is to provide a socket contact which can realize a thinner and more compact socket connector. The socket contact 120 is press-fitted into the wire insertion groove 115 of the socket housing 110 having the concave wire insertion groove 115 formed from the rear surface 111. The socket contact 120 vertically rises from the main body 121 having the bottom plate 121a and the bottom plate 121a, and has a U-shaped slot 122a to tear the insulating coating of the electric wire W and the conductor and The pressure contact plate 122 which connects to, the insulation barrel 123 which rises vertically from the bottom plate 121a, and bends inwardly to caulk the insulation coating of the electric wire W, are arranged in the width direction, 124a), a middle portion 124b forming an accommodating portion 125 for accommodating the clearance portion W1 at the end of the electric wire between the press contact plate 122, and an inner portion 124c in contact with the header contact 220. And a pair of contact pieces 124 having.

Description

Socket Contact {SOCKET CONTACT}

1 is a perspective view of a socket contact of an embodiment.

2 is a plan view of the socket contact of the embodiment as seen from the opening side of the slot;

3 is a side view of the socket contact of the embodiment as seen from the width direction.

4 is a front view of the socket contact of the embodiment as seen from the inner side in the depth direction.

5 is a rear view of the socket contact of the embodiment as seen from the front side in the depth direction.

FIG. 6 is a cross-sectional view taken along the line VI-VI of FIG. 2.

7 is a plan view of a disc of a socket contact of an embodiment.

8 is a perspective view of the socket connector of the embodiment.

Fig. 9 is a plan view of the socket connector of the embodiment as seen from the back side of the socket housing.

10 is a cross-sectional view taken along the line X-X in FIG. 9.

FIG. 11 is a cross-sectional view taken along the line XI-XI of FIG. 9.

12 is a cross-sectional view taken along the line XII-XII in FIG. 9.

It is sectional drawing in the XIII-XIII line of FIG.                 

14 is a cross-sectional view taken along the line XIV-XIV in FIG. 9.

15 is a cross-sectional view of the socket housing of the embodiment, where the position of the section line is the same as in the case of FIG.

It is a perspective view seen from the back side of a socket housing by connecting an electric wire to the socket connector of an Example.

It is the perspective view seen from the surface side of a socket housing by connecting an electric wire to the socket connector of an Example.

18 is a perspective view of a header connector of the embodiment.

19 is a perspective view when the electric wire is connected to the socket connector of the embodiment and connected to the header connector of the embodiment.

It is sectional drawing seen from the width direction by cutting into the surface facing the width direction when the electric wire was connected to the socket connector of an Example, and it connected to the header connector of an Example.

Fig. 21 is a cross-sectional view taken from the front of the depth direction by cutting into a surface facing the depth direction when the electric wire is connected to the socket connector of the embodiment and connected to the header connector of the embodiment.

TECHNICAL FIELD This invention belongs to the field of electrical connectors, and relates to the socket contact attached to the socket connector which connects to the header connector mounted on the surface of a printed wiring board and other mounting objects.

Japanese Patent No. 3262732 discloses that a contact for press-connecting an electric wire and a contact accommodating chamber for separately insulating the contact are separately isolated by a partition wall, and the top and rear ends of the wire press-in the wire. The present invention discloses a press-fit connector made of an insulated housing which is open for the purpose and is provided with strain reliefs, which are latching portions of the electric wire, on the partition portions on both sides of the rear end of the opening.

Japanese Patent Laid-Open Publication No. 2003-163041 discloses a contact portion connected to a terminal on the opposite side by bending a conductive plate and bending to form a contact portion connected to a terminal on the opposite side, and a pressure contact portion that receives an electric wire in order from the front. A pair of front and rear pressure welding blades is provided, and the front pressure welding blade is formed by cutting the sheath of the electric wire and having a slot for conducting connection with an internal conductor to be cut out from the bottom plate of the pressure welding portion. Similarly, the present invention discloses a pressure contact terminal formed by bending a side plate of one of the left and right side plates formed by bending the wire covering and connecting the inner conductor with a slot that can be connected to the inner conductor.

Japanese Utility Model Laid-Open No. 6-48190 discloses a female contact having a pair of contact pieces facing each other. The female terminal receives one end of the male contact on the opposite side between the contact pieces so as to contact it.

The header connector provided with the header contact which consists of a male contact is mounted on the surface of a printed wiring board, The header connector was provided with the socket contact which consists of a press-contact female contact, and was connected to the terminal of an electric wire. In the case of fitting the socket connector, there are the following problems.

In order to increase the strength against which the electric wires are bent so as to bend deformed, it is conceivable to install a strain relief as disclosed in Japanese Patent No. 3262732 in the socket connector. However, since the strain relief rises vertically in the height direction from the top of the socket housing partition, the socket connector becomes thick, and thinness cannot be realized.

In addition, in order to secure the holding force of the electric wire by the slot of the socket contact and to secure the contact reliability between the slot and the conductor of the electric wire, two slots are formed as disclosed in Japanese Patent Laid-Open No. 2003-163041. Although it is preferable to double the electric wire holding point and the press-contacting point as compared with the case where only one slot is used, the socket contact becomes long because the slots are arranged in the longitudinal direction, which hinders the compactness of the socket connector.

In addition, when the contact part of a male header contact is formed in plate shape or a rod shape, the contact part of the socket contact which contacts this is one pair mutually opposing as disclosed by Unexamined-Japanese-Patent No. 6-48190. It is cost-effective to make the contact piece of. In this case, in order to secure the elasticity of the contact piece, the length of the contact piece must be secured to a certain extent, and as a result, the socket contact becomes long, which hinders the compactness of the socket connector.

SUMMARY OF THE INVENTION The present invention has been made in view of this point, and an object thereof is to press the socket contact into the wire insertion groove and to form an insulation barrel in the socket contact to increase the strength against the swing of the electric wire, whereby the strain relief in the socket housing. The socket connector can be made thin by making the socket connector thin without arranging the connector, and by arranging it horizontally without bending a pair of contact pieces to secure elasticity, while shortening the socket contact to make the socket connector compact, and the holding force of the electric wire by the insulated barrel. In addition, by securing an accommodating portion for accommodating the marginal portion of the end of the wire between the bent portion of the contact piece and the pressure contact plate on which the slot is formed, the contact reliability between the slot and the conductor of the wire is secured, thereby making the slot single. The reason for this is to make the socket contact shorter and to compact the socket connector.

In order to achieve the above object, the socket contact of the present invention is concave toward the surface of the other end surface from the back surface which is one end surface in the height direction when the depth direction, the width direction, and the height direction perpendicular to each other are taken. Moreover, it is a socket contact which press-fits into the electric wire insertion groove of the socket housing in which the electric wire insertion groove which reached to the end surface of the front side in the depth direction is connected, and connects the terminal of an electric wire so that an electric wire may be pulled out in front of a depth direction from a socket housing. This socket contact is a main body having a bottom plate facing in the height direction and a depth extending vertically to one side in the height direction from the midway portion in the depth direction of the bottom plate and opening toward one side in the height direction. It is a height direction from at least one side of the pressure contact plate which tears the insulation coating of an electric wire with a U-shaped slot, and connects with a conductor, and the width direction both sides of the edge part just in front of the depth direction of a bottom plate toward substantially width direction. An insulation barrel for caulking the insulation coating of the electric wire by vertically rising to one side of the wire and bending it inward; a base arranged in the width direction and extending inward in the depth direction from the bottom plate toward the almost height direction, and having a substantially depth The storage part which vertically rises toward the height direction from the front end of a base toward a direction, and accommodates the clearance of an electric wire terminal part between a press contact plate And it has a contact piece of the pair having the inner portion in contact with the header contact St. intermediate portion, substantially in height toward the direction of the depth from the middle parts of the front end extends inwardly in a direction from the end surface of the inner width direction of the header connector.

The socket contact is inserted into the electric wire insertion groove of the socket housing so that the slot is opened toward the rear surface side of the socket housing, and the pressure direction is pressed in such a manner that the insulating barrel rises vertically toward the rear surface side of the socket housing. Further, the end of the electric wire extending in the depth direction is pushed in the slot of the electric wire insertion groove along the height direction so that the marginal portion of the electric wire is accommodated in the accommodating portion, and is pressed against the slot, and the insulation coating of the electric wire is caulked with the insulating barrel. Next, the socket connector is fitted to the header connector provided on the surface of the printed wiring board or other mounting object, and a pair of contact pieces of the socket contact are brought into contact with the contact portion of the header contact from both sides in the thickness direction thereof.

In that case, the socket contact is press-fitted into the wire insertion groove, and the insulating barrel caulks the insulating coating of the wire, so that the strength against the swing of the wire becomes high, thereby eliminating the need for installing a strain relief in the socket housing. Thinning of the socket connector is realized. In addition, since the pair of contact pieces are arranged in the width direction without facing each other, and the base, the intermediate part, and the inner part are bent in a step shape and are continuous, when the contact pieces are used in a straight state, for example, when the contact pieces are disposed to face each other. Compared with this, the socket contact is shortened while the elasticity is secured by setting the unfolded length to a length substantially the same as when the contact piece is straight, thereby making the socket connector compact. In addition, the insulating barrel ensures the holding force of the electric wire, and also allows the wire end portion to be accommodated between the bent portion of the contact piece and the press contact plate, so that a portion in which the conductor may be lost in the slot may be lost due to cutting work or the like. Since the part of the electric wire which a conductor exists completely avoids, the contact welding is surely realized and the contact reliability of a slot and the electric conductor of a wire is ensured. Therefore, the socket contact becomes shorter by making the slot single, and the socket connector becomes compact. Further, since the pair of contact pieces of the socket contact come in contact with the contact portion of the header contact from both sides in the thickness direction, the socket contact comes into contact with the header contact at two points, and the connection reliability is high. In addition, since the coupling force between the socket contact and the electric wire is increased by the insulated barrel, relative movement of the socket contact and the electric wire does not occur even when the electric wire is swung or pulled out, so that the reliability of the connection between the slot and the electric conductor is improved.

The socket contact of the present invention can reduce the thickness of the socket connector by eliminating the need for installing a strain relief in the socket housing, and shorten the socket contact while securing elasticity by bending by arranging a pair of contact pieces horizontally. Can be made compact, and the socket connector can be made compact by securing the holding force of the wire and securing the contact reliability between the slot and the conductor of the wire, and shortening the socket contact, and also making the header contact. The socket contact can be brought into contact with each other at two points to increase the reliability of the connection. In addition, since the relative movement of a socket contact and an electric wire does not generate | occur | produce, the reliability of the connection of a slot and an electric conductor can be made high.

The socket contact of the present invention communicates with the wire insertion groove in the inner side in the depth direction than the electric wire insertion groove in the socket housing, and is open to the rear face of the socket housing or the end surface of the inner side in the depth direction, and the header on the opposite side. The storage recess in which the header contact of a connector is inserted may be formed, and a pair of contact piece may be formed in the storage recess.

In this way, when a socket contact is press-fitted into the electric wire insertion groove of a socket housing, a contact piece is stored in a storage recessed part. Therefore, the contact piece is protected by the socket housing and is not inadvertently deformed under external force.

Therefore, the contact piece can be prevented from being inadvertently deformed under external force.

The socket contact of the present invention has a bottom plate and a side plate in which the main body rises vertically from one side in the height direction from both sides in the width direction of the bottom plate, and the bottom plate is the first bottom plate on the inner side in the depth direction and the second just in front. It may be divided into a bottom plate, a contact piece may be provided in the inner side of the 1st bottom plate in the depth direction, a press contact plate may be provided in front, and the insulating barrel may be formed in at least one side of the width direction both sides of a 2nd bottom plate. .

In this case, since the 1st bottom plate and the 2nd bottom plate are isolate | separated, when the electric wire is bent by bending the insulation barrel formed in the 2nd bottom plate, the stress produced by this does not reach the 1st bottom plate, and a contact piece and a pressure contact plate deform | transform. have nothing to do. In the case where the socket contact is formed by bending one disc formed in a predetermined shape, the disc becomes symmetrical or close to the line extending in the longitudinal direction of the bottom plate, so that the disc is blanked from the plate. An unbalanced force is less likely to act when taken out, resulting in a higher yield of the original. In addition, since one of the length and width of the original plate does not become excessively excessive, the original plate can be efficiently blanked from the plate.

Therefore, it is possible to prevent the contact piece and the pressure contact plate from being deformed by the stress generated when the insulation barrel is bent to caulk the electric wire. In addition, the yield of the original plate can be increased, and the original plate can be efficiently blanked from the plate.

In the socket contact of the present invention, the side plate contacts the projection projecting inward in the width direction in the vicinity of the opening to the rear surface of the electric wire insertion groove of the socket housing at a contact pressure, whereby the electric wire insertion groove of the socket housing of the socket contact is provided. It may be configured to press-fit.

In this way, since the movement in the height direction of the socket contact is strongly restricted by the bottom face and the protrusion of the wire insertion groove, the strength against the swing of the wire in this direction is increased.

Therefore, the intensity | strength with respect to the electric wave | wing of an electric wire to a height direction can be raised.

The socket contact of the present invention is configured such that the socket connector is fitted in the height direction with respect to the header connector, the header contact has a blade shape, has a plate-shaped contact in the width direction, and the socket connector is fitted in the header connector. When it loses, the pair of contact pieces may be configured to contact both end faces in the thickness direction of the contact portion of the header contact.

In this way, the socket connector is fitted in the height direction with respect to the header connector, so that there is no need to provide an empty space for mounting the socket connector on the mounting object during the fitting, so that the socket connector and the header connector are mounted on the mounting object. The area occupied by it decreases. By thinning the socket connector, the height from the surface of the mounting object to the surface of the socket connector is lowered, and the height of the connection structure constituted by the socket connector and the header connector is realized. Since the electric wire is drawn out from the socket housing directly in the depth direction, even if the housing or the like is placed against the surface of the mounting object, the electric wire will be less likely to touch the housing, which reduces the load on the electric wire and stabilizes the connection. The connection structure by the connector and the header connector is further lowered.

Therefore, the area occupied by the socket connector and the header connector in the mounting object can be reduced, and the height of the connection structure constituted by the socket connector and the header connector can be reduced by reducing the thickness of the socket connector. It becomes difficult to come in contact with a housing or the like arranged opposite to the surface of the mounting object, so that the load applied to the wire can be reduced, the connection state can be stabilized, and the connection structure by the socket connector and the header connector can be further lowered.                     

Hereinafter, embodiments of the present invention will be described. 1-6 illustrate a socket contact 120 that is an embodiment of the invention. This socket contact 120 is press-fitted into the socket housing 110 as shown in FIG. 15, and the socket connector 100 as shown in FIGS. 8-14 by this socket housing 110 and the socket contact 120 is shown. ) Is configured. The depth direction, width direction, and height direction orthogonal to each other are assumed, and it demonstrates using these directions. In the case of this embodiment, referring to FIG. 2, the left and right directions of the drawing are in the depth direction, and the left side of the drawing is inward of the depth direction and the right side is just in front of the depth direction. Moreover, the direction perpendicular | vertical to the paper surface of a figure is a height direction, and the up-down direction of a figure is a width direction. The socket housing 110 is formed of an insulating material, and the socket contact 120 is formed of a conductive material. The mating header connector 200 includes a header housing 210 formed of an insulating material and a header contact 220 formed of a conductive material and provided to the header housing 210. Although the socket connector 100 and the header connector 200 are two-pole types and are provided with two contacts 120 and 220 in parallel, the number of poles of the socket connector and header connector of this invention is not limited by this. This header connector 200 is arrange | positioned at the surface facing the height direction in the mounting object P of other printed wiring boards. The mounting object P is an article having a surface in the height direction and having a conductor serving as a connection partner of the header contact 220. The mounting target P includes, for example, a printed wiring board, a flat flexible cable such as a flexible flat cable (FFC) or a flexible printed circuit (FPC), a housing of an electronic device, and the like. The printed wiring board referred to here refers to a board formed by printing a conductor pattern necessary for connecting between components on the surface or the surface of the insulating board and the inside thereof based on the circuit design. In the case of a housing of an electronic device, for example, a conductor is formed by a technique of a molded interconnection device (MID) which forms a conductive plating layer on the surface of an insulator. In this embodiment, the mounting target P is a printed wiring board, and the header connector 200 is mounted on the surface of the mounting target P which is this printed wiring board.

As shown in FIG. 15, the socket housing 110 is concave toward the surface 112 which is the other end surface from the back surface 111 which is one end surface in a height direction, and the end surface 113 just in front of a depth direction. The wire insertion groove 115 leading to) is formed. On the inner side of the socket housing 110 in the depth direction than the electric wire insertion groove 115, it communicates with the electric wire insertion groove 115 and also has the rear surface 111 of the socket housing 110 and the inner end surface of the inner side in the depth direction ( An opening in 114 is provided with a receiving recess 116 into which the header contact 220 of the header connector 200 is inserted. The storage recess may be opened on either the rear surface of the socket housing or the end surface of the inner side in the depth direction. The storage recess 116 is provided with a pair of contact pieces 124 of the socket contact 120. When the accommodating recess is not formed, the pair of contact pieces of the socket contact are accommodated in, for example, the electric wire insertion groove or protrude from the electric wire insertion groove in the inner side or the height direction in the depth direction.

The socket contact 120 is press-fitted into the electric wire insertion groove 115 and connects the end of the electric wire W so that the electric wire W is drawn out directly from the socket housing 110 in the depth direction. This press fitting is performed by dimensioning so that the socket contact 120 and the electric wire insertion groove 115 may fit tightly, for example. The socket contact 120 has a main body 121. The main body 121 is provided with the bottom plate 121a facing the height direction, and the side plate 121b which vertically rises to the one side of the height direction from both width direction sides of this bottom plate 121a. The main body of the socket contact of this invention should just be equipped with the bottom plate, and does not need to provide a side plate. The bottom plate 121a is provided with a press contact plate 122, an insulating barrel 123, and a pair of contact pieces 124.

The press-contact plate 122 is a plate piece, faces in the depth direction, and vertically rises from the middle portion in the depth direction of the bottom plate 121a to one side in the height direction. The pressure-contacting plate 122 is formed with a substantially U-shaped slot 122a that opens toward one side in the height direction, and an edge of the slot 122a is sharply formed so that the insulating coating of the electric wire W is formed. It is comprised so that tear may be made and it connects with a conductor. When the electric wire W is pushed in the slot 122a along the height direction, the slot 122a tears the insulating coating, and the conductor 122 inside the insulating coating contacts the slot 122a so that the slot 122a and the electric wire ( Make mechanical and electrical connections to the conductors of W).

The insulating barrel 123 is a plate piece and faces substantially the width direction, and rises vertically from at least one side of the width direction both sides of the edge part just in the depth direction of the bottom plate 121a to one side of a height direction. Moreover, it is comprised so that the insulation coating of the electric wire W may be cocked by bending inward of the width direction. In this embodiment, the two insulating barrels 123 are vertically raised in the height direction from both widthwise sides of the end just in the depth direction of the bottom plate 121a.

The pair of contact pieces 124 are all plate pieces and are arranged in the width direction. The pair of contact pieces 124 form a substantially U-shaped portion as a whole when viewed from the height direction when the pair of contact pieces 124 are together with the tip portion of the bottom plate 121a. The contact piece 124 is provided with the base 124a, the intermediate part 124b, and the inner side 124c. The base 124a has a surface almost facing in the height direction and extends from the bottom plate 121a inward in the depth direction. The midway portion 124b faces almost in the depth direction, and is vertically raised from the tip of the base 124a to one of the height directions. The intermediate part 124b is located so that the accommodating part 125 which accommodates the clearance part W1 of the terminal of the electric wire W between the press contact plate 122 may be formed. The clearance portion W1 is a portion close to the tip end of the wire W, and is a portion likely to receive an external force by cutting work or the like. The inner side 124c has a surface substantially facing in the height direction, and extends inwardly in the depth direction from the tip of the middle portion 124b. The inner side portion 124c is configured to contact the header contact 220 of the header connector 200 at the end face inside the width direction.

The bottom plate 121a of the main body 121 of the socket contact 120 is divided into a first bottom plate 121aa on the inner side in the depth direction and a second bottom plate 121ab on the front side. Moreover, the contact piece 124 is provided in the inner side of the 1st bottom plate 121aa in the depth direction, and the pressure contact plate 122 is provided in the immediately front side of the 1st bottom plate 121aa in the depth direction. Moreover, the insulating barrel 123 is formed in at least one side of the width direction both sides of the 2nd bottom plate 121ab. In this embodiment, the insulating barrel 123 is formed on both sides in the width direction of the second bottom plate 121ab.

As shown in FIG. 12, the protrusion part 117 which protrudes in the width direction inside is formed in the vicinity of the opening to the back surface of the electric wire insertion groove 115 of the socket housing 110. As shown in FIG. In addition, the side plate 121b of the main body 121 of the socket contact 120 contacts the protrusion 117 at a contact pressure, whereby the wire insertion groove 115 of the socket housing 110 of the socket contact 120 is contacted. It is configured to press-fit into).

The socket contact 120 is provided with the engaging piece 126 which rises vertically in the substantially height direction from the both ends of the width direction. Receiving portion 118 for accommodating the engaging piece 126 on the surface constituting the electric wire insertion groove 115 in the socket housing 110 to prevent movement of the socket contact 120 to the front in the depth direction. Is formed. In this embodiment, the locking piece 126 is vertically raised in the height direction from both ends in the width direction of the bottom wall toward the width direction. Moreover, the accommodating part 118 is formed by concave the side surface of the electric wire insertion groove 115 to the width direction outer side. The locking piece 126 is inserted into the receiving portion 118 by pressing the socket contact 120 into the wire insertion groove 115 and then bending the locking piece 126 outwardly in the width direction. By such a configuration, when the socket contact 120 is to move in front of the depth direction, the locking piece 126 touches the inwardly facing surface in the inward direction of the accommodating portion 118, so that the socket contact ( Movement of 120 is inhibited. The locking piece 126 is formed to be inclined slightly outward in the width direction, and the locking piece 126 is elastically deformed when the socket contact 120 is press-fitted into the electric wire insertion groove 115. It may be inserted.

The socket connector 100 is configured to fit in the height direction with respect to the header connector 200. In the case of this embodiment, as shown in FIG. 18, the header housing 210 penetrates from the surface 211 which is one end surface in the height direction to the back surface 212 which is the other end surface, and is just in front of the depth direction. A storage chamber 214 that extends to the end surface 213 of the is formed. Moreover, the protrusion part 119 which fits into the storage chamber 214 is formed in the inner side end of the socket housing 110 in the depth direction. The header contact 220 is a blade shape and has the contact part 221 formed in the plate shape toward the width direction. The header contact 220 is formed in the header housing 210 so that the contact part 221 may protrude from the inside of the depth direction to the storage chamber 214. The header contact 220 is formed such that the connecting portion 222 is exposed to the rear surface 212 or the peripheral edge thereof of the header housing 210. The connecting portion 222 is mounted on the surface of the mounting object P by soldering or the like. The connection part 222 may be soldered to the surface of the mounting object P, and may be inserted and soldered into the hole formed in the mounting object P. FIG. It does not matter whether this hole penetrates the mounting object P. As shown in FIG. In addition, when the socket connector 100 is fitted to the header connector 200, the pair of contact pieces 124 are configured to contact both end faces in the thickness direction of the contact portion 221 of the header contact 220. . The width | variety of the storage chamber 214 narrows in the site | part near the end surface 213 of the front side of the header housing 210 in the depth direction, and the throttle part is formed. The header housing 210 is provided with a locking portion that protrudes in the width direction to form the throttle portion, and prevents the socket connector 100 from falling out in the depth direction by the locking portion. On the constituent wall of the protrusion 119 of the socket housing 110 and the storage chamber 214 of the header housing 210, a lock mechanism for increasing the fitting force when the protrusion 119 is fitted to the storage chamber 214 is provided. Formed. That is, a concave portion is formed in the constituent wall of the storage chamber 214 as the lock portion 215, a projection portion is formed in the protrusion portion 119 as the lock portion 119a, and the protrusion portion 119 is fitted into the storage chamber 214. When lost, the locks are fitted with flexibility. Conversely, a concave portion may be formed in the protruding portion 119, and a protrusion may be formed in the constituent wall of the storage chamber 214.

The operation and effects of the socket contact 120 of this embodiment are described. The socket contact 120 is opened in the electric wire insertion groove 115 of the socket housing 110, and the slot 122a is opened toward the rear side of the socket housing 110, so that the insulating barrel 123 is connected to the socket housing 110. Set the direction so that it rises vertically toward the back side of the press-fit. In addition, the end of the electric wire (W) extending in the depth direction is pushed in the wire insertion groove 115 along the height direction so that the marginal portion (W1) of the front end is accommodated in the accommodating portion (125) and pressed against the slot (122a) In addition, the insulating coating of the electric wire W is caulked with the insulating barrel 123 (refer FIG. 16 and FIG. 17). Next, the socket connector 100 is fitted to the header connector 200 provided in the mounting object P, and the pair of contact pieces 124 of the socket contact 120 is contacted with the contact portion 221 of the header contact 220. Contact from both sides in the thickness direction thereof (see Figs. 19 to 21).

In that case, since the socket contact 120 is press-fitted into the electric wire insertion groove 115 and the insulating barrel 123 cocks the insulating coating of the electric wire W, the electric wire W is swung (imaginary line and The intensity | strength with respect to the movement as shown by a solid arrow becomes high, and it does not need to provide a strain relief in the socket housing 110, and thickness reduction of the socket connector 100 is implement | achieved. In addition, since the pair of contact pieces 124 are arranged in the width direction without facing each other, and the base 124a, the intermediate part 124b, and the inner part 124c are bent in a step shape to be continuous, for example, the contact pieces are disposed to face each other. Compared to the case where the contact piece is used straight as in the case of the case, the socket contact 120 is shortened while the elasticity is secured by setting the unfolding length to the same length as when the contact piece is straight, and the socket connector 100 is shortened. It is compact. In addition, since the holding force of the electric wire W is ensured by the insulating barrel 123, the marginal portion W1 of the end of the electric wire is stored between the bent portion of the contact piece 124 and the pressure contact plate 122. Since 122a) abuts the part W2 of the electric wire in which a conductor exists completely, avoiding the clearance W1 which may lose a conductor by cutting work etc., even in the wire end, a certain pressure contact is realized, Contact reliability with the conductors of the wire is ensured. Therefore, the socket contact 120 becomes shorter by making the slot 122a single, and the socket connector 100 becomes compact. In addition, since the pair of contact pieces 124 of the socket contact 120 come into contact with the contact portion 221 of the header contact 220 from both sides in the thickness direction, the socket contact 120 is connected to the header contact 220. Contact is made at two points, and the reliability of the connection is increased. In addition, since the coupling force between the socket contact 120 and the wire W is improved by the insulating barrel 123, even if the wire W is swayed or pulled out, the relative movement of the socket contact 120 and the wire W is increased. Since it does not occur, the reliability of the connection of the slot 122a and the conductor of the electric wire W becomes high.

The pair of contact pieces of the socket contact of the present invention may be provided in the electric wire insertion groove or may protrude out from the electric wire insertion groove. However, in this embodiment, the back surface 111 of the socket housing 110 communicates with the wire insertion groove 115 on the inner side in the depth direction than the wire insertion groove 115 in the socket housing 110. Alternatively, an opening is formed in the inner end surface 114 in the depth direction, and a storage recess 116 into which the header contact 220 of the header connector 200 on the opposite side is inserted is formed, and a pair of contact pieces 124 are provided. This storage recessed part 116 is provided. In this way, when the socket contact 120 is press-fitted into the electric wire insertion groove 115 of the socket housing 110, the contact piece 124 is stored in the accommodating recess 116. Therefore, the contact piece 124 is protected by the socket housing 110, and it is not inadvertently deformed by an external force.

The socket contact of this invention should just be equipped with the main body which has a bottom plate. Further, the bottom plate of the socket contact of the present invention may be provided integrally without being divided. However, in this embodiment, the main body 121 has a bottom plate 121a and a side plate 121b that vertically rises from both width directions of the bottom plate 121a to one side in the height direction, and the bottom plate 121a is placed on the surface. It is divided into the 1st bottom plate 121aa of the inner side of this direction, and the 2nd bottom plate 121ab of the immediately preceding side, The contact piece 124 is provided in the inner side direction of the 1st bottom plate 121aa, The pressure contact plate 122 is provided directly in front, and the insulating barrel 123 is formed in at least one side of the width direction both sides of the 2nd bottom plate 121ab. In this case, since the 1st bottom plate 121aa and the 2nd bottom plate 121ab are isolate | separated, when this bends the insulation barrel 123 formed in the 2nd bottom plate 121ab, and caulks the electric wire W, it arises by this. The stress does not reach the first bottom plate 121aa, and the contact piece 124 and the pressure contact plate 122 are not deformed. When the socket contact 120 is formed by bending one disc C (see Fig. 7) formed in a predetermined shape, the disc C extends in the longitudinal direction of the bottom plate 121a. Since it becomes symmetrical to or close to this, an unbalanced force is less likely to work when the original plate C is removed from the plate by blanking or the like, and the yield of the original plate C is increased. In addition, since one of the length and width of the original plate C does not become excessively excessive, the original plate C can be efficiently blanked from the plate material.

The socket contact of the present invention may be in contact with any part of the constituent wall of the wire insertion groove by contact pressure, and does not limit the press-fit form. However, in this embodiment, the side plate 121b contacts the projection 117 protruding inward in the width direction in the vicinity of the opening to the rear surface 111 of the wire insertion groove 115 of the socket housing 110 at a contact pressure. Thus, it is configured to press-fit into the wire insertion groove 115 of the socket housing 110 of the socket contact 120. In this case, since the movement in the height direction of the socket contact 120 is strongly restricted by the bottom of the wire insertion groove 115 and the protrusion 117, the strength against the swing of the wire W in this direction is increased. .

As for the socket contact of this invention, the socket connector provided with this may be fitted in what kind of form with respect to a header connector, and does not limit a fitting form. Accordingly, the present invention also includes an embodiment in which the socket connector is configured to fit along the depth direction with respect to the header connector. However, in this embodiment, the socket connector 100 is configured to fit along the height direction with respect to the header connector 200, the header contact 220 is blade-shaped, the plate-shaped contact portion 221 facing in the width direction When the socket connector 100 is fitted to the header connector 200, the pair of contact pieces 124 are in contact with both end faces in the thickness direction of the contact portion 221 of the header contact 220. It is. In this case, since the socket connector 100 is fitted along the height direction with respect to the header connector 200, it is necessary to form an empty space in the mounting object P for moving the socket connector 100 at the time of fitting. The area occupied by the socket connector 100 and the header connector 200 in the mounting object P is reduced. This is advantageous when the header connector 200 is mounted on the surface of the mounting object P where the parts are dense and the socket connector 100 is connected thereto. In addition, when the header connector 200 is mounted on the surface of the mounting object P where the parts are dense in this way, and the socket connector 100 is fitted thereto, the socket connector 100 is pushed in the height direction. Workability is greatly improved compared with the work which pushes in the direction orthogonal to the height direction, such as a depth direction and a width direction. By thinning the socket connector 100, the height from the surface of the mounting object P to the surface 112 of the socket connector 100 is lowered, whereby the connection structure constituted by the socket connector 100 and the header connector 200. Lower height is realized. Since the electric wire W is withdrawn from the socket housing 110 directly in the depth direction, even if the housing etc. are arrange | positioned facing the surface of the mounting object P, for example, it will become difficult for the electric wire W to contact this housing etc. As the load received by (W) is reduced, the connection state is stabilized, and the connection structure by the socket connector 100 and the header connector 200 is further lowered.

The present invention includes an embodiment of a socket connector that does not form a catching piece and a receiving portion. However, in the case of the above embodiment, the engaging piece 126 which rises substantially in the height direction from the both ends of the width direction is formed in the socket contact 120, and the wire insertion groove 115 in the socket housing 110 is formed. The receiving part 118 which accommodates the latching piece 126 is formed in the surface which comprises the socket contact 120 to prevent the movement to the front of the depth direction immediately. In this way, since the accommodating part 118 accommodates the catching piece 126, and movement to the front of the socket contact 120 in the depth direction is prevented, the intensity | strength with respect to the extraction of the electric wire W becomes high. Therefore, it is also possible to avoid the use of a so-called lance structure in which a locking piece is formed in one of the socket housing 110 and the socket contact 120 and a locking hole in which the locking piece is caught on the other. By doing so, the hole 112 formed in the socket housing 110 in order to form the engaging piece or the locking hole can be eliminated so that the surface 112 of the socket housing 110 can be made without a hole. Thinning becomes possible.

In addition, in the above embodiment, since the socket contact 120 is press-fitted into the wire insertion groove 115, the coupling strength between the socket contact 120 and the socket housing 110 is high. Moreover, when the electric wire W is connected to the socket connector 100, and this socket connector 100 is connected to the header connector 200 provided in the surface of the mounting object P, the electric wire insertion groove of the socket housing 110 is carried out. Since 115 is closed by the mounting object P, and the vicinity of the slot 122a which is the connection part of the socket contact 120 and the electric wire W is surrounded by the socket housing 110 and the mounting object P, As shown in FIG. 20, the swinging force of the electric wire W is accommodated in the socket housing 110 or the mounting target P, and does not reach the slot 122a, and the strength against the swing of the electric wire W is increased. Increases. In addition, since the insulating barrel 123 of the socket contact 120 cocks the insulating coating of the wire W, the wire W is held in a direction falling from the socket connector 100 along the direction in which the wire W extends. Even if the pull-out force acts, this pull-out force is accommodated in the insulating barrel 123, so as not to reach the slot 122a, and the strength with respect to the pull-out of the electric wire W becomes high.                     

This invention includes the Example which combined the characteristic of the above Example.

According to the socket contact of the present invention, the socket contact is press-fitted into the wire insertion groove and the insulation barrel is formed in the socket contact to increase the strength against the swing of the wire, thereby eliminating the need for installing a strain relief in the socket housing. The connector is made thin, and the pair of contact pieces are arranged horizontally without facing each other to bend the socket contacts to shorten the socket contact while securing elasticity, thereby securing the holding force of the wire by the insulating barrel, By forming an accommodating portion for accommodating the marginal portion of the wire end between the bent portion and the pressure contact plate in which the slot is formed, the contact reliability between the slot and the conductor of the electric wire is secured, thereby making the slot single and making the socket contact shorter. It has the effect of making the connector compact.

Claims (7)

In the socket contact 120 mounted to the socket connector 100, The socket contact 120 is concave toward the surface 112 which is the other end surface from the rear surface 111 which is one end surface in the height direction when the depth direction, the width direction, and the height direction perpendicular to each other are taken. In addition, the electric wire insertion groove 115 of the socket housing 110 is formed to be pressed into the wire insertion groove 115 extending to the end surface 113 of the front side in the depth direction, the electric wire (W) is held from the socket housing 110 As a socket contact 120 for connecting the end of the electric wire (W) to be drawn out in front of this direction, A main body 121 having a bottom plate 121a facing in the height direction; The electric wire W having the U-shaped slot 122a which goes to the depth direction and rises vertically to the one side of the height direction from the middle part of the depth direction of the bottom plate 121a, and opens toward one side of the height direction. A pressure-contacting plate 122 that tears the insulating coating of < RTI ID = 0.0 > To face the width direction, vertically rises from at least one side of the width direction both sides of the edge part just in the depth direction of the bottom plate 121a to one side of the height direction, and bends inward to cock the insulating coating of the wire W. Insulating barrel 123; And Arranged in the width direction, the base 124a extends inwardly in the depth direction from the base plate 121a toward the height direction, and rises vertically from the distal end of the base 124a toward the depth direction in one of the height directions. The middle portion 124b which forms the accommodating portion 125 for accommodating the clearance portion W1 at the end of the electric wire between the press contact plate 122 and the depth from the tip of the middle portion 124b toward the height direction. A pair of contact pieces 124 having an inner portion 124c extending inward in the direction and contacting the header contact 220 of the header connector 200 at an end surface of the width direction inner side, The pair of contact pieces 124 are arranged in the width direction without facing each other and bent to secure elasticity. The inner side in the depth direction than the electric wire insertion groove 115 in the socket housing 110 communicates with the electric wire insertion groove 115 and is the rear side 111 of the socket housing 110 or the inner side in the depth direction. An opening concave portion 116 is formed which is opened in the end surface 114 of the connector and into which the header contact 220 of the mating header connector 200 is inserted. The pair of contact pieces (124) are provided in the storage recess (116). delete The main body 121 has the bottom plate 121a and the side plate 121b which rises vertically from the width direction both sides of this bottom plate 121a to one side of a height direction, The bottom plate 121a is divided into a first bottom plate 121aa on the inner side in the depth direction and a second bottom plate 121ab on the front side, The contact piece 124 is provided in the inner side of the 1st bottom plate 121aa in the depth direction, and the pressure contact plate 122 is provided in the immediate front side, A socket contact, characterized in that an insulating barrel (123) is formed on at least one of both sides in the width direction of the second bottom plate (121ab). The side plate (121b) is in contact with the projection 117 protruding inward in the width direction in the vicinity of the opening to the rear surface 111 of the wire insertion groove 115 of the socket housing 110, And the socket contact (120) is pressed into the wire insertion groove (115) of the socket housing (110). The method of claim 1, wherein the socket connector 100 is configured to fit along the height direction with respect to the header connector 200, The header contact 220 is blade-shaped, has the plate-shaped contact part 221 facing the width direction, When the socket connector 100 is fitted to the header connector 200, the pair of contact pieces 124 are configured to contact both end surfaces in the thickness direction of the contact portion 221 of the header contact 220. Socket contacts. The method of claim 3, wherein the socket connector 100 is configured to fit along the height direction with respect to the header connector 200, The header contact 220 is blade-shaped, has the plate-shaped contact part 221 facing the width direction, When the socket connector 100 is fitted to the header connector 200, the pair of contact pieces 124 are configured to contact both end surfaces in the thickness direction of the contact portion 221 of the header contact 220. Socket contacts. The method according to claim 4, wherein the socket connector 100 is configured to fit along the height direction with respect to the header connector 200, The header contact 220 is blade-shaped, has the plate-shaped contact part 221 facing the width direction, When the socket connector 100 is fitted to the header connector 200, the pair of contact pieces 124 are configured to contact both end surfaces in the thickness direction of the contact portion 221 of the header contact 220. Socket contacts.

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