JP2017216241A - connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a low connector which facilitates terminal processing, improves manufacture accuracy and is capable of easily performing partial plating.SOLUTION: A contact part 2d of a socket terminal 2 of a socket connector 1 comprises a first contact piece part 2e and a second contact piece part 2f which are rod-shaped to be extended in a crossing direction with respect to a fitting direction of a plug terminal 6b and disposed at mutually facing positions with an insertion gap 2g1 interposed therebetween. The first contact piece part 2e and the second contact piece part 2f include: proximal end side legs 2e2 and 2f2 rising in a direction separated from a substrate; and rod-shaped first holding arm 2e2 and a second holding arm 2f1 connected to the proximal end side legs 2e2 and 2f2 and extended in the crossing direction. The first contact piece part and the second contact piece part can be conducted and brought into contact while interposing the plug terminal 6b which is inserted into the insertion gap 2g1 between the first holding arm 2e1 and the second holding arm 2f1, therebetween.SELECTED DRAWING: Figure 14

Description

  The present invention relates to a low-profile connector that is used by being mounted on a substrate and that is in stable conductive contact with an object to be connected.

  In recent years, mobile devices such as smartphones have been reduced in size and thickness, and connectors used for such electrical devices are also required to have a low profile. Therefore, a connector is used in which the housing is miniaturized and the terminal is folded and accommodated therein (for example, Patent Document 1). This terminal has an elastic piece portion that elastically supports the contact portion in order to press the contact portion against the connection object. Moreover, in order to extend the effective fitting length with a connection target object, the elastic piece part is extended | stretched along the fitting direction of a connection target object, and the contact part is arrange | positioned in the position of the insertion port side of a connection target object. By these, although it is a low-profile connector, it can be set as a connector with high connection reliability with a connection target object.

JP 2012-221602 A

  In the connector described above, the terminal is bent in a complicated manner in order to accommodate the long elastic piece in the narrow housing. Therefore, manufacturing is difficult and there is a problem in manufacturing accuracy. Furthermore, since the terminal is complicatedly bent in this way, it is difficult to partially plate only the contact portion. In other words, gold plating is applied to the terminals from the viewpoint of improving the electrical conductivity. However, since the cost is increased when the entire terminal is gold-plated, partial plating is particularly applied to contact portions that require electrical conductivity as much as possible. It is preferable to However, in the terminal of the connector described above, a contact portion is formed at an intermediate position in the height direction of the terminal, and a jig such as a sparger for performing partial plating cannot be brought close to the contact portion. Partial plating is difficult. For this reason, since it is necessary to perform plating over the entire surface of the terminal, there is a problem that the cost of plating is high and it is difficult to reduce the cost.

  The present invention has been made against the background of the prior art as described above. The object is to provide a low-profile connector in which the terminal can be easily partially plated.

  In order to achieve the above object, the present invention is configured as follows.

  That is, the present invention has a contact portion between a housing and a connection object, and a connector including a terminal held by the housing, the contact portion intersects the fitting direction of the connection object. A first contact piece portion and a second contact piece portion which are in a rod shape extending along the insertion space and are disposed at positions opposed to each other via an insertion gap, and the first contact piece portion and the second contact There is provided a connector characterized in that it has a base end side connecting base part that connects base end parts of one part and sandwiches the connection object inserted into the insertion gap to conduct conduction.

  In the connector of the present invention, the first contact piece portion and the second contact piece portion, which are rod-shaped extending along the crossing direction with respect to the fitting direction of the connection target object, are in conductive contact with the connection target object sandwiched therebetween. Therefore, compared with the case where each contact piece part is extended and provided along the said fitting direction like the connector of the background art mentioned above, for example, it can be set as a low-profile terminal. Moreover, according to this invention, since two contact piece parts pinch | interpose a connection target object and carry out a conductive contact, it can continue a conductive contact more reliably with a connection target object. In particular, the first contact piece part and the second contact piece part of the present invention are connected by the base end side connecting base part, and compared with the case where they extend independently from different positions, the connection object A stronger clamping force can be exerted on the object. Therefore, even if the terminal is low in height and the effective fitting length is short, a connector with high connection reliability can be obtained.

  Further, with such a configuration, the conductive contact can be stably made with the connection object without using a structure in which the terminal is bent in a complicated manner. Therefore, it is possible to obtain a terminal that is easy to manufacture. Further, the first contact piece portion and the second contact piece portion are rod-shaped, and they extend along the crossing direction with respect to the fitting direction of the connection object like parallel bars, and on the structure of the terminal, It is located on the outermost side and exposed to the outside. Therefore, since it is not a terminal structure having a contact portion at the intermediate position in the height direction of the terminal as in the connector of the background art described above, the partial metal to the specific portion of the first contact piece portion and the second contact piece portion Plating is also easy. Therefore, since it is not necessary to apply gold plating to the entire surface of the terminal surface, the cost of the terminal can be reduced.

  The terminal of the present invention may have a distal end side connecting base portion that connects distal ends of the first contact piece portion and the second contact piece portion.

  Thereby, it can be made hard to produce the situation where the 1st contact piece part and the 2nd contact piece part will be greatly plastically deformed indefinitely. At the same time, since a stronger restoring force can be exhibited, the connection object can be held with a stronger force.

  The opposing edge part of the said 1st contact piece part of the said this invention and a said 2nd contact piece part shall consist of roll surfaces.

  There are cases where the shear surface and fracture surface of a terminal provided by punching a conductive metal plate are not smooth but have fine irregularities on the surface. For this reason, if the terminal is in conductive contact with the connection target on such a sheared surface or fracture surface, the terminal may not be in stable conductive contact with the connection target. In contrast, the first contact piece and the second contact piece are in conductive contact with the connection object on the roll surface, which is the surface of the metal plate not subjected to shearing, so that the connection object and the terminal are connected. Connection reliability can be improved.

  The housing of the present invention includes a fixed housing fixed to a substrate, and a movable housing disposed so as to be displaceable with respect to the fixed housing, and the terminal is held by the movable housing at one end side, The end side is held by the fixed housing, and may have a movable part that elastically displaces the movable housing relative to the fixed housing.

  In this way, since the terminal has a movable part, even if it receives vibration, impact, etc., the movable part elastically deforms to absorb the positional deviation, and the contact part follows the connection object to conduct. Contact can be maintained. Therefore, connection reliability with a connection object can be improved compared with the case where it does not have such a movable part. Such an effect is particularly effective when used in an environment that is susceptible to vibration and impact, such as a mobile device.

  Further, the present invention provides any one of the connectors according to the present invention as a socket connector, and a plug connector fitted and connected to the socket connector, the first contact piece portion and the second contact piece portion of the socket connector. It has a plug terminal in the form of a bar piece that is in conductive contact, and the plug terminal is provided on one surface side that is in conductive contact with the first contact piece portion, and is engaged with the first contact piece portion in the removal direction. A first locking portion that stops, and a second locking portion that is provided on the other surface side that is in conductive contact with the second contact piece portion and locks in the removal direction to the second contact piece portion. A plug connector is provided.

  Since the plug terminal has such a first locking portion and the second locking portion, even if the socket connector has a low profile and the effective fitting length between the socket terminal and the plug terminal is short, the plug terminal can be The conductive contact between the first contact piece and the second contact piece can be reliably maintained. In addition, the plug terminal has the first locking portion on one surface and the second locking portion on the other surface, so that the plug terminal is connected by the first contact piece portion and the second contact piece portion. It can be pinched and locked from both sides. Therefore, since the displacement of each contact piece portion with respect to the plug terminal can be surely suppressed, the connection reliability can be improved.

  Furthermore, in order to achieve the above object, the present invention is configured as follows.

  That is, this invention has a contact part with the housing arrange | positioned on a board | substrate, and a connection target object, and the said contact part is a fitting of the said connection target object about the connector provided with the terminal hold | maintained at the said housing. The first contact piece has a first contact piece portion and a second contact piece portion which are rod-shaped extending along a crossing direction with respect to the direction and are disposed at positions opposed to each other via an insertion gap. Each of the first and second contact piece portions includes a leg portion that rises in a direction away from the substrate, and a rod-shaped holding arm portion that is connected to the leg portion and extends along the intersecting direction. There is provided a connector characterized in that the connection object inserted in the insertion gap formed between holding arm portions is sandwiched and brought into conductive contact.

  The terminal according to the present invention may have a base-side connection base portion that connects the leg portion of the first contact piece portion and the leg portion of the second contact piece portion.

  The terminal of the present invention is formed of a flat metal piece, and the first contact piece part and the second contact piece part have a surface of the metal piece in contact with the connection object. It can be formed along the fitting direction.

  The said holding arm part of the said invention shall be bent and deformed so that it may receive and curve in response to insertion in the said fitting direction of the said bar-shaped connection target object.

  The connector of the present invention has a plurality of the terminals, and the housing has a length for accommodating the first contact piece portion and the second contact piece portion in the longitudinal direction for each of the terminals. A plurality of terminal holding grooves may be arranged in parallel.

  The terminal of the present invention may have a fixing portion for the terminal holding groove on one end side and the other end side of the first contact piece portion and the second contact piece portion.

  The connector according to the present invention includes a fixed housing disposed on the board and a movable housing disposed inside the fixed housing, and the terminal is capable of moving the movable housing relative to the fixed housing. The movable portion extends along one direction from the fixed housing toward the movable housing, and the first contact piece portion and the second contact piece portion are defined as follows. The movable housing may be disposed along the one direction in the planar direction of the substrate from the end of the movable portion on the movable housing side.

  The connector according to the present invention includes a fixed housing disposed on the board and a movable housing disposed inside the fixed housing, and the terminal is capable of moving the movable housing relative to the fixed housing. The movable portion may be formed in an inverted U shape straddling a wall portion forming the fixed housing.

  The connector according to the present invention includes a fixed housing disposed on the board and a movable housing disposed inside the fixed housing, and the terminal is capable of moving the movable housing relative to the fixed housing. The first contact piece and the second contact piece are formed in a height direction away from the substrate and lower than the movable part. be able to.

  According to the present invention, it is possible to provide a low-profile connector that does not have a complicated three-dimensional structure and can be easily partially plated.

The perspective view which shows the front of the socket connector of one Embodiment, a plane, and a right side. The perspective view which shows the back surface, bottom surface, and left side surface of the socket connector of FIG. The front view of the socket connector of FIG. The top view of the socket connector of FIG. The bottom view of the socket connector of FIG. The right view of the socket connector of FIG. The perspective view which shows the front of the socket terminal of FIG. 1, a plane, and a right side. The perspective view which shows the back surface, bottom surface, and left side surface of the socket terminal of FIG. Explanatory drawing which shows the formation method of the contact part of the socket terminal of FIG. Explanatory drawing which shows the plug connector with which the socket connector of FIG. 1 fits. Explanatory drawing which shows the state before the socket connector of FIG. 1 and the plug connector of FIG. 10 fit. Explanatory drawing which shows the fitting state of the socket connector and plug connector of FIG. Explanatory drawing which shows the state before the socket terminal of FIG. 7 and the plug terminal of FIG. Explanatory drawing which shows the state which the socket terminal and plug terminal of FIG. Explanatory drawing which shows the state which the contact part of the socket terminal of FIG. 14 and the contact piece part of a plug terminal are carrying out the conductive contact. It is explanatory drawing which shows the state by which the front-end | tip part of the plug terminal of FIG. 15 was inserted in the terminal insertion part of a socket terminal, Comprising: (a) is a side surface schematic diagram, (b) is arrow SA-SA. FIG. It is explanatory drawing which shows the state which the latching | locking part of the plug terminal of FIG. 16 latches to the contact part of a socket terminal, Comprising: (a) is a side surface schematic diagram, (b) is an arrow SB -SB line cross-sectional schematic diagram. Explanatory drawing which shows typically the state which performs partial plating to a socket terminal.

  Hereinafter, an embodiment of a connector of the present invention will be described with reference to the drawings.

  In the present specification, claims, and drawings, the width direction along the arrangement direction of the socket terminals 2 as “terminals” included in the socket connector 1 is the X direction, and the first contact piece portion 2e and the second contact piece 2e of the socket terminal 2 are the second. The front-rear direction along the extending direction of the contact piece 2f is defined as the Y direction, and the height direction is defined as the Z direction. Further, the plane side in the height direction Z is referred to as “upper side”, and the bottom side is referred to as “lower side”. Such specification of the vertical direction does not limit the mounting direction and usage direction of the connector of the present invention.

  In addition, about the socket connector 1, since a rear view is represented as the same thing as a front view, description is abbreviate | omitted. Moreover, since the left side view is represented as the same as the right side view, the description is omitted.

Embodiment [FIGS. 1 to 18]:
(Socket connector)
The socket connector 1 is used by being mounted on the board P1, and conductively connects the circuit pattern of the board P1 and the plug connector 6 as a “connection object” (FIGS. 11 and 12). As shown in FIGS. 1 to 6, the socket connector 1 includes a socket housing 3 and socket terminals 2 held by the socket housing 3.

[Socket housing]
The socket housing 3 includes a fixed housing 4 made of an insulating resin molding and a movable housing 5.

  The fixed housing 4 has a frame shape and includes a front wall portion 4a, a rear wall portion 4b, and a side wall portion 4c.

  The front wall portion 4a and the rear wall portion 4b are plate-shaped along the width direction X, and are provided with fixing holes (not shown) in which the fixing portions 2b of the socket terminals 2 are fixed.

  The side wall portions 4 c are in the form of plate pieces along the front-rear direction Y, and are provided one by one on both end sides in the width direction X in the socket housing 3. Each side wall part 4c connects the edge parts in the width direction X of the front wall part 4a and the rear wall part 4b. Further, a concave portion 4d that opens downward is formed at the lower end of the side wall portion 4c. Fixing brackets 4c1 are fixed to both end sides in the width direction X of the side wall portion 4c. Each fixing bracket 4c1 extends in the front-rear direction Y, and both end sides in the front-rear direction Y of the reinforcement plate 4c2. And a mounting portion 4c3 mounted on the substrate P1. Since the reinforcing plate 4c2 is provided over the entire length along the front-rear direction Y of the side wall portion 4c, it is possible to reinforce the socket housing 3 so that it can withstand the load received from the plug connector 6 and the board P1 even if the socket housing 3 is small and low-profile. it can.

  The movable housing 5 has a substantially rectangular parallelepiped shape, and is disposed inside the fixed housing 4 having a frame shape. The movable housing 5 is held so as to be displaceable with respect to the fixed housing 4 by a socket terminal 2 described later. Such a movable housing 5 has a terminal holding groove 5a, a locking hole 5b, and a protruding portion 5c.

  A plurality of terminal holding grooves 5 a are arranged in parallel along the width direction X of the movable housing 5. In the terminal holding groove 5a, the proximal end side fixing portion 2h and the distal end side fixing portion 2i of the socket terminal 2 are press-fitted and fixed one by one. Further, a through hole 5a1 is formed at the bottom of the terminal holding groove 5a, and the distal end portion 6b5 of the plug terminal 6b is inserted in a fitted state with the plug connector 6 (FIG. 15).

  One locking hole 5b is provided at each end in the width direction X of the movable housing 5, and a positioning portion 6a1 provided in the plug housing 6a of the plug connector 6 is inserted therein.

  The protrusions 5 c are provided on both end sides in the width direction X of the movable housing 5. By disposing the protruding portion 5 c inside the recess 4 d of the fixed housing 4, the movable housing 5 is prevented from coming off from the fixed housing 4. Further, the movable housing 5 can be displaced with respect to the fixed housing 4 by the protrusion 5 c being displaced inside the recess 4 d.

(Socket terminal)
The socket terminal 2 is formed by bending a conductive metal plate, as shown in FIGS. 7 to 9, and includes a board connecting portion 2a, a fixed portion 2b, a movable portion 2c, and a “contact portion”. Socket contact portion 2d.

  The board connecting portion 2a is provided on one end side of the socket terminal 2 and mounted on the board P1.

  The fixing portion 2b is inserted into and held by fixing holes (not shown) provided in the front wall portion 4a and the rear wall portion 4b of the fixing housing 4 connected to the board connecting portion 2a.

  The movable portion 2c has a substantially inverted U shape and is elastically deformed along the width direction X and the front-rear direction Y. Such a movable part 2c is directly connected to a socket contact part 2d, which will be described later, so that the movable part 2c is elastically deformed when vibration or impact is applied, and the socket contact part 2d is directly and efficiently elastically displaced. Can do. Thereby, since the socket contact part 2d can follow the displacement of the plug terminal 6b, connection reliability can be improved.

  The socket contact portion 2d is provided so as to be connected to the movable portion 2c, and includes a base end side connection base portion 2j, a first contact piece portion 2e, a second contact piece portion 2f, a terminal insertion portion 2g, and a tip end side connection. It has a base portion 2k, a base end side fixing portion 2h, and a tip end side fixing portion 2i.

  The base end side connecting base portion 2j is connected to the movable portion 2c, and the first contact piece portion 2e and the second contact piece portion 2f extend.

  The first contact piece 2e includes a first holding arm 2e1 provided along the front-rear direction Y, a proximal leg 2e2 provided on the proximal side of the first holding arm 2e1, and a distal end side. It has the front end side leg part 2e3 provided. A first contact portion 2e4 is provided on a surface of the first holding arm portion 2e1 that faces the second holding arm portion 2f1. The proximal end leg 2e2 extends upward from the distal end of the movable portion 2c. Further, the distal leg 2e3 extends downward from the distal end of the first holding arm 2e1. Therefore, the first holding arm portion 2e1 is supported by the base end side leg portion 2e2 and the front end side leg portion 2e3, and is held at a position separated from the substrate P1.

  The second contact piece 2f has a symmetrical shape in the width direction X with respect to the first contact piece 2e and is disposed adjacent to the first contact piece 2e. The second contact piece 2f includes a second holding arm 2f1 provided along the front-rear direction Y, a proximal leg 2f2 provided on the proximal side of the second holding arm 2f1, and a distal side. And a front end leg 2f3. A second contact portion 2f4 is provided on a surface of the second holding arm portion 2f1 that faces the first holding arm portion 2e1. The base end side leg 2f2 extends upward from the tip of the movable portion 2c. Further, the distal leg 2f3 extends from the distal end of the second holding arm 2f1 downward. Therefore, the second holding arm portion 2f1 is supported by the base end side leg portion 2f2 and the distal end side leg portion 2f3 similarly to the first holding arm portion 2e1, and is held at a position separated from the substrate P1.

  The front end side connecting base 2k is provided on the front end side in the front-rear direction Y, and connects the front end side leg 2e3 of the first contact piece 2e and the front end side leg 2f3 of the second contact piece 2f. .

  The terminal insertion portion 2g is formed by the first holding arm portion 2e1 and the second holding arm portion 2f1, and forms an insertion gap 2g1 of the plug terminal 6b included in the plug connector 6. The length of the insertion gap 2g1 along the width direction X is shorter than the length of the plug terminal 6b in the width direction X when the plug connector 6 is not fitted.

  The base end side fixing portion 2h is connected to the base end side connecting base portion 2j and extends along the front-rear direction Y. The distal end side fixing portion 2 i is connected to the distal end side connecting base portion 2 k and extends along the front-rear direction Y.

[Plug connector]
As shown in FIG. 10, the plug connector 6 includes a plug housing 6a and plug terminals 6b.

[Plug housing]
The plug housing 6a has a box shape made of a molded body of insulating resin. Plug terminals 6b are arranged in parallel along the width direction X in the plug housing 6a, and two rows of such plug terminals 6b are provided along the front-rear direction Y. Further, one positioning portion 6a1 is formed on each end of the plug housing 6a in the width direction X so as to protrude downward (in the socket housing 3 side) in the fitted state with the socket connector 1. Further, fixing metal fittings 6a2 mounted on the substrate P2 are fixed to both end sides in the width direction X of the plug housing 6a.

[Plug terminal]
The plug terminal 6b is made of a metal piece obtained by punching a conductive metal plate, and has a contact piece portion 6b1, a housing fixing portion 6b2, and a board connecting portion 6b6 (FIGS. 13 and 14).

  The contact piece portion 6b1 has a substantially rectangular cross section along the XY plane, and includes a tip end portion 6b5, a plug contact portion 6b3, an entry allowing portion 6b9, a first locking portion 6b4, and a second locking portion. 6b8.

  The front end portion 6b5 has a substantially rectangular cross section, and an R surface is provided by chamfering each corner portion. Further, a guide portion 6b7 having a C surface is formed by chamfering at the lower end portion of the tip portion 6b5. Since the guide portion 6b7 is formed at the lower end of all the surfaces of the tip portion 6b5, the tip portion 6b5 is tapered toward the tip.

  This guide portion 6b7 is a portion that is first inserted into the terminal insertion portion 2g of the socket terminal 2 when the socket connector 1 and the plug connector 6 are fitted together. Therefore, by forming such a guide portion 6b7, the guide portion 6b7 expands the terminal insertion portion 2g little by little, and the distal end portion 6b5 is smoothly inserted into the terminal insertion portion 2g. Further, since the corner portion of the tip portion 6b5 is chamfered to provide the R surface, such a corner portion is inserted into the terminal insertion portion 2g so that the corner portion becomes the first contact piece portion 2e or the second contact portion of the socket terminal 2. It is possible to prevent the piece 2f from being caught or damaged.

  The plug contact portion 6b3 is provided on the upper side of the tip portion 6b5. One plug contact portion 6b3 is provided on each side of the contact piece portion 6b1 in the width direction X. Of the two plug contact portions 6b3, the first contact piece portion 2e is in conductive contact with the plug contact portion 6b3 provided on one surface side of the contact piece portion 6b1. The second contact piece portion 2f is in conductive contact with the plug contact portion 6b3 provided on the other surface side of the contact piece portion 6b1 among the two plug contact portions 6b3. Note that the plug contact portion 6b3 of the present embodiment is formed flush with the tip portion 6b5.

  The entry allowing portion 6b9 is formed adjacent to the plug contact portion 6b3. The entry permitting portion 6b9 is formed as a C surface in which a metal corner portion forming the plug terminal 6b is chamfered. In particular, in the present embodiment, one entry allowing portion 6b9 is provided at each of four corners of a metal piece having a substantially rectangular cross section that forms the contact piece 6b1. Thereby, the cross-sectional shape in the height position where this approach permission part 6b9 is formed is a substantially octagon.

  The first locking portion 6b4 and the second locking portion 6b8 are formed between the distal end portion 6b5 and the entry allowing portion 6b9 in the height direction Z. Such 1st latching | locking part 6b4 and 2nd latching | locking part 6b8 consist of a step part formed by the difference in the cross-sectional shape and cross-sectional area of the front-end | tip part 6b5 and the approach allowance part 6b9. Thereby, the 1st latching | locking part 6b4 and the 2nd latching | locking part 6b8 protrude one step outside from the lower end of the approach permission part 6b9.

  The first locking portion 6b4 is formed adjacent to the plug contact portion 6b3 on one surface side in the width direction X where the first contact piece portion 2e is in conductive contact. Specifically, two plug contact portions 6b3 are formed so as to be sandwiched along the front-rear direction Y. The second locking portion 6b8 is formed adjacent to the plug contact portion 6b3 on the other surface side in the width direction X where the second contact piece portion 2f is in conductive contact. Specifically, two plug contact portions 6b3 are formed so as to be sandwiched along the front-rear direction Y. When the plug terminal 6b is displaced away from the socket terminal 2 in the fitted state of the socket connector 1 and the plug connector 6, the first contact piece 2e of the socket terminal 2 is locked to the first locking portion 6b4. Then, the second contact piece 2f is locked to the second locking portion 6b8, so that the plug terminal 6b is prevented from coming off.

  The housing fixing portion 6 b 2 has a substantially U-shaped cross section and is fixed to the socket housing 3. Further, a substrate connection portion 6b6 mounted on the substrate P2 is formed on one end side in the front-rear direction Y of the housing fixing portion 6b2.

  The board connecting portion 6b6 is a long piece portion that is connected to the housing fixing portion 6b2 and extends along the front-rear direction Y. By mounting the board connecting portion 6b6 on the board P2, a circuit pattern (not shown) provided on the board P2 is electrically connected to the plug terminal 6b.

[Description of manufacturing method of socket terminal]
A method for manufacturing the socket terminal 2 will be described. The socket terminal 2 is formed by bending a metal piece provided by punching a conductive metal plate. In particular, the socket contact portion 2d has a first contact piece portion 2e and a second contact piece portion 2f that are the same height as the proximal end side fixing portion 2h and the distal end side fixing portion 2i, as shown by the one-dot chain line in FIG. It is provided so as to be folded from a flat metal piece provided at the position. Therefore, the first contact part 2e4 of the first contact piece part 2e and the second contact part 2f4 of the second contact piece part 2f are provided on the roll surface instead of the fracture surface of the metal piece. In some cases, fine irregularities are formed on the shearing surface or the fractured surface generated by punching the metal plate. Accordingly, if the contact piece 6b1 of the plug terminal 6b is brought into conductive contact with such a sheared surface or fracture surface, connection reliability may be lowered. Therefore, in this embodiment, the socket terminal 2 and the plug terminal 6b are more stable by forming the first contact portion 2e4 and the second contact portion 2f4 on a smooth roll surface not subjected to such shearing processing. Can be connected.

  Further, the socket contact portion 2d has a simple configuration having a first contact piece portion 2e and a second contact piece portion 2f which are formed in a rod shape extending in the front-rear direction Y. Therefore, the socket terminal 2 having high dimensional stability and high manufacturing accuracy can be obtained. Further, the first contact piece portion 2e and the second contact piece portion are not formed to extend in the height direction Z of the socket terminal 2, but are formed to extend like parallel bars in the plane direction (front-rear direction Y). In view of the structure of the socket terminal 2, the socket terminal 2 is located on the outermost side and is exposed to the outside, and the first contact portion 2e4 and the second contact portion 2f4 are also exposed to the outside. Therefore, as shown in FIG. 18, since the plating solution discharge port P4 of the sparger P3 for performing partial plating can be easily brought close to the contact portions 2e4 and 2f4, the plating solution W is discharged to the contact portions 2e4 and 2f4. Thus, partial gold plating can be performed easily and accurately. Therefore, since it is not necessary to perform gold plating over the entire socket terminal 2, the manufacturing cost of the socket terminal 2 can be reduced.

[Explanation of usage]
First, the socket connector 1 is mounted on the substrate P1. After that, as shown in FIGS. 11 and 12, the positioning portion 6 a 1 included in the plug housing 6 a is inserted into the locking hole 5 b of the movable housing 5. By doing so, the contact piece 6b1 of the plug terminal 6b is positioned in the terminal insertion part 2g of the socket terminal 2. Subsequently, the contact piece 6b1 is inserted into the terminal insertion portion 2g, and the socket connector 1 and the plug connector 6 are fitted.

  Since the length along the width direction X of the contact piece 6b1 of the plug terminal 6b is shorter than the length along the width direction X of the insertion gap 2g1 of the socket terminal 2, the guide portion 6b7 of the contact piece 6b1 of the plug terminal 6b is The first contact piece 2e and the second contact piece 2f of the socket terminal 2 are pressed and bent outward in the width direction X to widen the insertion gap 2g1, while the tip 6b5 is connected to the terminal insertion portion 2g. Inserted into. Since the corner portion of the metal piece forming the tip portion 6b5 is chamfered as described above, it can be smoothly inserted into the terminal insertion portion 2g without being caught by the contact piece portions 2e and 2f (FIGS. 13 to 13). 15 shows a fitting method by extracting only the socket terminal 2 and the plug terminal 6b).

  Thereafter, by further inserting the plug terminal 6b into the terminal insertion portion 2g, the distal end portion 6b5 and the locking portions 6b4 and 6b8 of the plug terminal 6b pass through the insertion gap 2g1. As described above, the locking portions 6b4 and 6b8 are formed by providing the distal end portion 6b5 at one stage outside the entry allowing portion 6b9. Therefore, when the entry allowing portion 6b9 reaches the first contact piece portion 2e and the second contact piece portion 2f, the contact piece portions 2e and 2f are elastically deformed toward the entry allowing portion 6b9 by the restoring force ( (Refer FIG. 16, FIG. 17). Thereby, each contact part 2e4 and 2f4 contacts with the plug contact part 6b3. At that time, a click feeling can be obtained at the operator's hand, so that the fitting operation of the socket connector 1 and the plug connector 6 can be confirmed with a hand feeling. In this fitted state, as shown in FIG. 17B, the contact portions 2e4 and 2f4 are bent and deformed so as to be curved under the pressure of the plug contact portion 6b3. By this bending deformation, the contact portions 2e4 and 2f4 can be reliably brought into conductive contact with the plug contact portion 6b3.

  In this fitted state, the distal end portion 6b5 is accommodated in the through hole 5a1 of the terminal holding groove 5a of the movable housing 5 of the socket housing 3. Thereby, compared with the case where the front-end | tip part 6b5 is arrange | positioned above the terminal holding groove 5a, the contact piece part 6b1 can be inserted to a deeper position with respect to the movable housing 5. FIG. Therefore, the fitting structure 1A of the socket connector 1 and the plug connector 6 can be made lower.

  As described above, the base end side leg 2e2 of the first contact piece 2e and the base end side leg 2f2 of the second contact piece 2f are connected by the base end side connecting base 2j, and the first contact piece. The front end side leg 2e3 of the portion 2e and the front end side leg 2f3 of the second contact piece 2f are connected by the front end side connecting base 2k. Thus, the first contact piece portion 2e and the second contact piece portion 2f are connected to each other on the distal end side and the proximal end side, so that the contact piece portion 6b1 of the plug terminal 6b is inserted into the terminal insertion portion 2g. Even if the first holding arm portion 2e1 and the second holding arm portion 2f1 are elastically deformed in the direction away from the contact piece portion 6b1, it is difficult to cause a situation in which they are elastically deformed indefinitely and plastically deformed. Further, with such a configuration, the first contact piece 2e and the second contact piece 2f can exert a strong restoring force toward the direction of narrowing the insertion gap 2g1. With such a restoring force, the contact piece 6b1 of the plug terminal 6b can be sandwiched and held with a strong force.

  As described above, when the contact piece 6b1 inserted into the terminal insertion portion 2g of the socket terminal 2 is to be displaced along the height direction Z, the locking portions 6b4 and 6b8 are connected to the first contact piece 2e and the second contact piece 2e. The contact piece 2f is prevented from being pulled out. By doing so, even when the effective fitting length is short, the socket contact portion 2d of the socket terminal 2 and the plug plug contact portion 6b3 can be easily kept in contact with each other without being separated. In addition, since the socket connector 1 of the present embodiment includes a plurality of socket terminals 2, the locking portions 6b4 and 6b8 of all the socket terminals 2 are prevented from coming off from the contact piece portions 2e and 2f, whereby the plug connector 6 Is more securely retained with respect to the socket connector 1.

  The socket connector 1 of this embodiment is in conductive contact so that the contact piece 6b1 of the plug terminal 6b is sandwiched between the first contact piece 2e and the second contact piece 2f. Thus, the socket contact portion 2d can be formed without providing a complicated three-dimensional structure in the socket contact portion 2d itself. Thereby, it can be set as the socket terminal 2 with high manufacture precision and easy to perform partial plating. Moreover, the socket connector 1 having a low profile as a whole can be obtained.

Variations:
The socket connector 1 according to the present embodiment is an example of a so-called floating connector in which the socket terminal 2 has the movable portion 2 c and the socket housing 3 includes the fixed housing 4 and the movable housing 5. On the other hand, when it is not necessary to cope with the large vibration and impact of the plug connector 6, the socket terminal 2 does not have the movable portion 2c, and the socket housing 3 does not have the movable housing 5. You can also.

  In the socket terminal 2 of the present embodiment, the first contact piece portion 2e and the second contact piece portion 2f are connected at the base end side by the base end side connecting base portion 2j, and at the tip end side by the front end side connecting base portion 2k. An example to be shown. On the other hand, for example, the socket terminal 2 in which the first contact piece 2e and the second contact piece 2f are not connected on the distal end side may be used. In this case, the socket terminal 2 can also be in conductive contact with the contact piece 6b1 of the plug terminal 6b having a larger cross section along the XY plane.

  The example which the elastic part 2c which the socket terminal 2 of the said embodiment has has deformed elastically along a X direction and a Y direction was shown. On the other hand, the movable part 2c may be elastically deformed also in the Z direction. Further, by making the contact piece 6b1 of the plug terminal 6b longer than the first holding arm 2e1 and the second holding arm 2f1 in the height direction Z, the contact piece 6b1 becomes each holding arm 2e1, 2f1. However, it may be possible to be displaced in the Z direction.

  The example in which the plug terminal 6b of the present embodiment has the entry allowing portion 6b9 having a C surface formed by chamfering the corner portion of the metal piece having a rectangular cross section forming the contact piece portion 6b1 is shown. On the other hand, it can also be set as the approach permission part which consists of R surface formed by chamfering.

DESCRIPTION OF SYMBOLS 1 Socket connector 1A Fitting structure 2 Socket terminal 2a Board | substrate connection part 2b Fixed part 2c Movable part 2d Socket contact part 2e 1st contact piece part 2e1 1st holding arm part 2e2 Base end side leg part 2e3 Front end side leg part 2e4 1st contact part 2f 2nd contact piece part 2f1 2nd holding | maintenance arm part 2f2 Base end side leg part 2f3 Front end side leg part 2f4 2nd contact part 2g Terminal insertion part 2g1 Insertion gap 2h Base end side fixing | fixed part 2i Front end side fixed portion 2j Base end side connection base portion 2k Front end side connection base portion 3 Socket housing 4 Fixed housing 4a Front wall portion 4b Rear wall portion 4c Side wall portion 4c1 Fixing bracket 4c2 Reinforcement plate 4c3 Mounting portion 4d Recessed portion 5 Movable housing 5a Terminal holding groove 5a1 Through hole 5b Locking hole 5c Protruding part 6 Plug connector 6a Plug housing 6a1 Positioning part 6a2 Fixing bracket 6b Plug terminal 6b1 Contact piece 6b2 Housing fixing part 6b3 Plug contact part 6b4 First latching part 6b5 Tip 6b6 Substrate connecting part 6b7 Guide part 6b8 Second latching part 6b9 Entry allowable part P1 Substrate P2 Substrate P3 Sparger P4 Plating Liquid outlet W Plating solution

Claims (9)

A housing disposed on the substrate;
In a connector that has a contact portion with a connection object and includes a terminal held by the housing,
The contact portion has a rod shape extending along a crossing direction with respect to the fitting direction of the connection object, and a first contact piece portion and a second contact piece which are disposed at positions opposed to each other via an insertion gap. And
The first contact piece portion and the second contact piece portion include a leg portion that rises in a direction away from the substrate, and a rod-shaped holding arm portion that is connected to the leg portion and extends along the intersecting direction. The connector is characterized in that the connection object inserted in the insertion gap formed between the holding arm portions is sandwiched and brought into conductive contact.
2. The connector according to claim 1, further comprising a proximal-side connection base portion that connects a leg portion of the first contact piece portion and a leg portion of the second contact piece portion.
The terminal is formed of a flat metal piece, and the first contact piece portion and the second contact piece portion are configured such that the surface of the metal piece that contacts the connection object is in the fitting direction. The connector according to claim 1, wherein the connector is formed along the line.
The connector according to any one of claims 1 to 3, wherein the holding arm portion is bent and deformed so as to be bent in response to insertion of the connection object in the form of a rod piece in the fitting direction.
The connector has a plurality of the terminals,
The housing has a plurality of terminal holding grooves arranged in parallel for each terminal so as to accommodate the first contact piece portion and the second contact piece portion in the longitudinal direction. The connector according to any one of claims 1 to 4.
The connector according to claim 5, wherein the terminal has a fixing portion for the terminal holding groove on one end side and the other end side of the first contact piece portion and the second contact piece portion.
The connector has a fixed housing disposed on the board, and a movable housing disposed on the inner side of the fixed housing,
The terminal further includes a movable part that movably supports the movable housing with respect to the fixed housing,
The movable portion extends along one direction from the fixed housing toward the movable housing,
The first contact piece portion and the second contact piece portion are arranged in the movable housing and extend along the one direction in a planar direction of the substrate from an end portion of the movable portion on the movable housing side. The connector according to claim 1, wherein the connector is a connector.
The connector has a fixed housing disposed on the board, and a movable housing disposed on the inner side of the fixed housing,
The terminal further includes a movable part that movably supports the movable housing with respect to the fixed housing,
The connector according to any one of claims 1 to 6, wherein the movable portion is formed in an inverted U shape straddling a wall portion forming the fixed housing.
The connector has a fixed housing disposed on the board, and a movable housing disposed on the inner side of the fixed housing,
The terminal further includes a movable part that movably supports the movable housing with respect to the fixed housing,
The said 1st contact piece part and the said 2nd contact piece part are formed in the height direction spaced apart from the said board | substrate, and are formed lower than the said movable part. connector.

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