JP2006236858A - Receptacle and connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a receptacle and a connector in which impedance matching can be achieved more appropriately while realizing densification of the contact which is assembled in juxtaposition in a housing composed of a dielectric, and which functions as the contact for signal. <P>SOLUTION: A plurality of receptacle-side contacts 26, 27 are juxtaposed having an equal spacing in the longitudinal direction of the receptacle 12 against a receptacle housing 16. Then, air layers 39 are interposed between contacts 27 next to each other and voids 38 are formed between the receptacle housing 16 in the base part side site 36a of the intermediate part in which signal waveforms are apt to be disturbed in the contacts 27 in the case of the receptacle side contacts 27 in which the transmission distances from the contacts become longer. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a receptacle and a connector suitable for use as an interface in, for example, an optical transceiver module or the like.

  Conventionally, this type of connector includes a plug and a receptacle, and the receptacle is provided with an insertion port through which the plug can be inserted and removed. Then, a plug is inserted into the insertion port, and the plug-side contact and the receptacle-side contact are electrically connected to form an interface corresponding to high-frequency signal transmission.

  In general, in a data transmission system that transmits a high-frequency signal through a connector, it is necessary to perform impedance matching between the signal source impedance and the load impedance in order to consume the power obtained from the signal source (power supply) with the maximum load. . For this reason, in the connector used in such a data transmission system, various measures are taken in order to achieve the impedance matching described above.

For example, Patent Document 1 discloses a receptacle in which a ground contact is provided between each of a plurality of signal contacts arranged in parallel in a predetermined direction, and air reservoirs are formed on both sides in the parallel direction of the ground contact. (And connectors). According to the receptacle (and connector) described in Patent Document 1, since the air reservoir is provided on both sides of the ground contact, the signal contact disposed adjacently along the air reservoir reduces the electrical characteristics such as impedance. As a result, the signal contacts can be densified as a result of being arranged close to the grounding contacts.
JP-A-4-294076 (Claim 1, paragraph number [0018], FIG. 12)

  However, in the receptacle (and connector) described in Patent Document 1, although the signal contacts can be densified, the degree of densification in that case depends on the interval between the signal contacts. The disclosure is limited to 2.54 mm to 2 mm. For this reason, when further higher density (for example, about 0.2 mm interval) is required, there is a case where the above-described structure in which the ground contacts are arranged between the signal contacts cannot be partitioned. In addition, although air reservoirs are provided on both sides of the ground contact, the signal contact, which is particularly problematic in signal waveform disturbance in high-frequency signal transmission, is in contact with a dielectric connector housing (receptacle housing). There was a risk that impedance matching could not be sufficiently achieved.

  The present invention has been made in view of the above circumstances, and the object thereof is to improve the impedance of a contact that is assembled in a parallel state with a dielectric housing and functions as a signal contact, and more preferably impedance. An object of the present invention is to provide a receptacle and a connector that can be matched.

  In order to achieve the above object, the invention according to claim 1 relating to a receptacle has a receptacle housing in which an insertion port for allowing a plug to be inserted and removed is formed, and insertion of the plug into the insertion port is performed in the receptacle housing. A plurality of receptacle-side contacts are arranged side by side so as to correspond to a plurality of plug-side contacts arranged in parallel to the plug at a predetermined interval in a direction crossing the direction, and each receptacle-side contact is adjacent to the receptacle-side contact. It is assembled to the receptacle housing with an air layer interposed therebetween.

  In the first aspect of the present invention, an air layer that is a dielectric having a lower dielectric constant than the material for forming the receptacle housing (for example, a synthetic resin material) is interposed between the receptacle-side contacts. Thus, impedance matching can be suitably achieved while increasing the density of the receptacle-side contacts.

  According to a second aspect of the present invention, in the receptacle according to the first aspect, the receptacle-side contact is attached when the contact portion having a contact point with the plug-side contact and the receptacle housing are mounted on a mounting substrate. A base portion connected to the conductive wire formed on the substrate; and an intermediate portion connecting the contact portion and the base portion, and the air layer is formed between the intermediate portions of the receptacle-side contacts. It is characterized by.

  In general, in the receptacle-side contact, the farther away from the contact with the plug-side contact, the longer the transmission distance, that is, the intermediate portion farther from the contact than the contact is likely to reduce impedance, making it difficult to achieve impedance matching. . In this respect, in the invention according to claim 2, in each receptacle-side contact, an air layer is provided not between the contact portions having contacts but between the intermediate portions where impedance disturbance is more likely to occur. Matching can be achieved.

  According to a third aspect of the present invention, in the receptacle according to the second aspect, the air layer is formed between the base side portions of the intermediate portion of the receptacle side contacts.

In the invention according to the third aspect, the operational effects that can be achieved in the invention according to the second aspect can be achieved more reliably.
According to a fourth aspect of the present invention, in the receptacle according to the second or third aspect, when the receptacle-side contact is assembled to the receptacle housing, the receptacle-side contact is inserted into the base-side portion of the intermediate portion. The insertion portion to be inserted into the hole is formed to protrude.

  According to the fourth aspect of the present invention, when the receptacle-side contact is assembled to the receptacle housing, the base-side portion of the intermediate portion in which the fitting portion protrudes is the support-fixing point for the receptacle housing. Therefore, when a plurality of receptacle-side contacts are assembled side by side in the receptacle housing and then mounted on the mounting board, the position of the base connected to the conductor on the mounting board is determined between each receptacle-side contact. There is almost no variation. Therefore, it is possible to eliminate as much as possible the possibility that some of the receptacle-side contacts in the side-by-side receptacle-side contacts are lifted from the other receptacle-side contacts, and each receptacle-side contact (in particular, Coplanarity of the base part) can be ensured.

  According to a fifth aspect of the present invention, in the receptacle according to any one of the second to fourth aspects, the receptacle-side contact has a thin plate shape, and an intermediate portion thereof is a base side portion. It is characterized by being formed wider than the contact portion side portion.

  According to the fifth aspect of the present invention, in each receptacle-side contact, the base portion side portion of the intermediate portion from which the fitting portion protrudes is formed wider than the contact portion side portion. Therefore, the strength of the base end side portion of the intermediate portion that receives the reaction force when the insertion portion is inserted into the insertion hole of the receptacle housing is increased, and the operational effects that can be achieved in the invention of claim 4 can be more reliably achieved. It becomes like this.

  According to a sixth aspect of the present invention, in the receptacle according to any one of the second to fifth aspects, a gap is provided between the base portion of the intermediate portion of the receptacle-side contact and the receptacle housing. It is formed.

  According to the sixth aspect of the present invention, since the base portion of the intermediate portion of the receptacle-side contact is separated from the receptacle housing made of a dielectric material, impedance matching can be more suitably achieved.

  According to a seventh aspect of the present invention, in the receptacle according to any one of the second to sixth aspects, the intermediate portion of the receptacle-side contact is substantially omitted when viewed from the direction in which the receptacle-side contacts are arranged side by side. It is L-shaped, and its bent portion is smoothly curved.

  According to the seventh aspect of the present invention, since the bent portion is smoothly curved in the shape of the substantially L-shaped intermediate portion of the receptacle-side contact, the bent portion forms an edge shape. Compared to the case, the signal transmitted through the intermediate portion of the receptacle-side contact is less likely to concentrate on the bent portion, and the signal disturbance can be satisfactorily suppressed.

  When the connector according to claim 8 is detachable from the receptacle according to any one of claims 1 to 7 and the insertion port of the receptacle and is inserted into the insertion port, It is characterized by comprising a plug in which a plurality of plug-side contacts in contact with each receptacle-side contact of the receptacle are arranged in parallel.

  In the invention according to the eighth aspect, the effect that can be obtained in the invention according to the receptacle according to any one of the first to seventh aspects can be similarly enjoyed in the connector.

  ADVANTAGE OF THE INVENTION According to this invention, impedance matching can be aimed at more suitably, aiming at high density of the contact assembled | attached to the housing which consists of dielectric materials in parallel, and functioning as a signal contact.

  Hereinafter, an embodiment in which the present invention is embodied in a high frequency connector used as an interface in an optical transceiver module will be described with reference to FIGS. In the following description, when referring to the “front-rear direction”, the left in the left-right direction in FIG. 3 is “front”, the right is “rear”, and when referring to the “left-right direction”, the page in FIG. Assume that the front side in the orthogonal direction is “left” and the back side is “right”.

  As shown in FIGS. 1A and 1B, the connector 10 of this embodiment includes a plug 11 and a receptacle 12. The plug 11 has a plug main body 13 formed in a flat and substantially rectangular plate shape by a known liquid crystal polymer (LCP) as a synthetic resin material having a low dielectric constant, and the base end side of the plug main body 13 (FIG. 1). In (a), the diagonally lower left side) is mounted on a flexible printed circuit board (hereinafter referred to as “FPC”) (not shown).

  A plurality of plug-side contacts 14 are equidistantly arranged in a lateral direction (left-right direction) which is a direction perpendicular to the plug insertion direction and a short direction in the plug 11 on the upper and lower surfaces of the plug body 13 at the tip side. Are placed side by side. A plurality of conducting wires 15 made of copper or the like connected to an optical fiber cable (not shown) in the FPC are extended from the base end side of each plug-side contact 14 along the upper and lower surfaces of the plug body 13. ing. The tip of the plug main body 13 is formed in a tapered portion 13a so that the plug 11 can be easily inserted into the receptacle 12 (specifically, an insertion port 18 described later).

  On the other hand, the receptacle 12 has a receptacle housing 16 formed in a box shape from the liquid crystal polymer (LCP), and the receptacle housing 16 is a printed wiring on which a large number of integrated circuit elements (not shown) are mounted. It is mounted on the substrate (mounting substrate) 17 with the lower surface 16a in contact therewith. An insertion port 18 through which the plug 11 (plug main body 13) can be inserted and removed is formed in the front surface 16b of the receptacle housing 16 in an approximately rectangular shape that is horizontally long in the left-right direction. A plurality of receptacle-side contacts 26, 27 that can come into contact with the plug-side contacts 14 when the plug 11 (plug body 13) is inserted into the insertion port 18, at the upper and lower portions in the insertion port 18. 2 (see FIGS. 2 to 4) is a direction perpendicular to the plug insertion direction, and the receptacle 12 is arranged in parallel at equal intervals in the lateral width direction (left-right direction) which is the longitudinal direction. A plurality of conductive wires 20 made of copper or the like extend from the base end side of each of the receptacle-side contacts 26 and 27 toward the respective integrated circuit elements on the printed wiring board 17 along the upper surface of the printed wiring board 17. ing.

Here, the configuration of the receptacle 12 will be described in detail with reference to FIGS.
As shown in FIGS. 2 and 3, the lower surface 16a of the receptacle housing 16 is provided with protruding portions 21 projecting downward from the left and right ends of the lower surface 16a. Then, each of the convex portions 21 is fitted into a concave portion (not shown) formed in the printed wiring board 17 so that the receptacle 12 (receptacle housing 16) is mounted on the printed wiring board 17 so as not to move. It has come to be. Further, on the front surface 16b side of the receptacle housing 16, the peripheral edge portion of the insertion port 18 is formed as a tapered portion 18a so that the plug 11 can be easily inserted.

  On the front surface 16b side of the receptacle housing 16, a plurality (30 in this embodiment) of front side lower slits 22a extending to a substantially midway position in the depth direction of the insertion port 18 are formed in the portion from the insertion port 18 to the lower surface 16a. They are arranged side by side at equal intervals in the left-right direction. In the present embodiment, each front side lower slit 22a has a width dimension (slit width) in the left-right direction set to 0.2 mm, and an interval between the slits 22a (an interval between the slit centers) is set to 0.4 mm. Is set.

  A plurality of (32 in the present embodiment) front side upper slits 22b extending to the inner back position of the insertion port 18 are formed on the front surface 16b side of the receptacle housing 16 on the upper side of the insertion port 18 to the left and right. They are arranged side by side at equal intervals in the direction. These front side upper slits 22b are set so that the width dimension in the left-right direction (slit width) and the interval between the slits 22b (interval between the slit centers) are the same as the respective front side lower slits 22a. Yes. As shown in FIG. 2, the front-side upper slits 22b except for the slits 22B (two on the left end side in FIG. 2) for the blank contact 27a for spare use have their left and right positions positioned at the front surfaces. It is formed so as to correspond to the side lower slit 22a in the vertical direction.

  On the other hand, as shown in FIGS. 3 to 5, in the portion from the rear surface 16 c side of the receptacle housing 16 above the insertion port 18 to the lower surface 16 a, the width in the left-right direction is the insertion port 18. A concave portion 23 that is substantially the same as the concave portion 23 is provided forward. A plurality (32 in the present embodiment) of rear surface side slits 24 are juxtaposed on the inner back surface of the recess 23 at equal intervals in the left-right direction. Each of the rear side slits 24 is set so that the width dimension (slit width) in the left-right direction and the interval between the slits 24 (interval between the slit centers) are the same as the respective front side upper slits 22b. These horizontal positions are formed so as to correspond to the front upper slits 22b in the front-rear direction. And each rear surface side slit 24 is connected with each front side upper side slit 22b corresponding in the front-back direction via the communication hole 25 where the lower half is put inside the insertion port 18.

  The receptacle contacts 26 and 27 are accommodated and disposed in the front side lower slit 22a, and form a lower contact 26 that forms a convex contact (lower contact 29a) on the upper side, and the recess 23 and the rear side slit. 24 and an upper contact 27 which is accommodated in the front side upper slit 22b and forms a downwardly convex contact (upper contact 35a). Each of these receptacle-side contacts 26, 27 is formed of a thin plate made of copper or the like having a thickness corresponding to the width dimension (slit width) of each of the slits 22a, 22b, 24.

  As shown in FIG. 3, the lower contact 26 is a base portion connected to a conductor 20 (see FIG. 1, not shown in FIG. 3) on the substrate 17 when the receptacle housing 16 is mounted on the printed wiring board 17. 28, an elastically deformable contact portion 29 that forms the lower contact 29a, and an intermediate portion 31 that connects between the contact portion 29 and the base portion 28. In FIG. 3, a broken line that divides the lower contact 26 into three parts is a line that virtually indicates the boundary of the base 28, the intermediate part 31, and the contact part 29.

  The intermediate portion 31 of the lower contact 26 is formed such that the base side portion 31a has a stepped shape, and the contact portion side portion 31b is formed in an arc shape, from the base side portion 31a. The insertion part 32 with a latching claw is extended toward the horizontal direction rear side. The fitting portion 32 is fitted into a fitting hole 19 </ b> F formed inside the front-side lower slit 22 a in the receptacle housing 16, so that the lower contact 26 is connected to the front-side lower slit of the receptacle housing 16. In 22a, the contact portion 29 is supported and fixed in a state where a part of the contact portion 29 (the portion of the lower contact 29a) faces the insertion port 18.

  On the other hand, when the receptacle housing 16 is mounted on the printed wiring board 17, the upper contact 27 includes a base portion 34 connected to the conductor 20 (see FIG. 1, not shown in FIG. 3) on the substrate 17, and the upper contact An elastically deformable contact portion 35 that forms 35 a and an intermediate portion 36 that connects between the contact portion 35 and the base portion 34 are configured. In FIG. 3, a broken line that divides the upper contact 27 into three parts is a line that virtually indicates the boundary between the base part 34, the intermediate part 36, and the contact part 35.

  The intermediate portion 36 of the upper contact 27 is substantially L-shaped in cross section, and the base portion side portion 36a is formed wider than the contact portion side portion 36b. An insertion portion 37 with a locking claw is extended from the base side portion 36a toward the front side in the horizontal direction, and the insertion portion 37 is formed in the back of each rear slit 24 in the receptacle housing 16. It is inserted in the hole 19R. Then, when the fitting portion 37 is fitted and locked in the fitting hole 19R, the upper contact 27 is a part of the contact portion 35 (upper contact) in each of the rear slit 24 and the front upper slit 22b of the receptacle housing 16. 35a) is supported and fixed with the insertion port 18 facing the portion.

  In each of the upper contacts 27, a bent portion 36c that is a boundary between the base portion side portion 36a and the contact portion side portion 36b in the intermediate portion 36 has a smooth curved shape. When the insertion portion 37 of the base portion 36a in the intermediate portion 36 is fitted and locked in the insertion hole 19R of the receptacle housing 16, the upper contacts 27 are supported and fixed (assembled) in parallel with the receptacle housing 16. A gap 38 is formed between the receptacle housing 16 and the base portion 36a of the intermediate portion 36. That is, it is made of air having a lower dielectric constant than the receptacle housing made of a synthetic resin material between the inner back surface of the rear slit 24 in the receptacle housing 16 and the front surface of the base side portion 36a of the intermediate portion 36 in the upper contact 27. A gap 38 is formed.

  Further, in the present embodiment, each upper contact 27 is supported and fixed (assembled) to the receptacle housing 16 with an air layer 39 interposed between the upper contacts 27 adjacent to each other. Specifically, air layers 39 are formed between the base side portions 36 a of the intermediate portion 36 in each upper contact 27. Due to the presence of the air layer 39, the base-side portions 36 a of the intermediate portions 36 of the upper contacts 27 are arranged apart from each other in the juxtaposed direction, and the juxtaposed manner in which they do not contact the receptacle housing 16. Yes. The receptacle 12 is mounted on the printed wiring board 17 after the receptacle-side contacts 26 and 27 are assembled in parallel with the receptacle housing 16 as described above. In this case, as shown in FIG. 7, the base portions 28 and 34 of the receptacle-side contacts 26 and 27 are connected to the conductive wire 20 on the printed wiring board 17 via the paste-like solder cream 40. It has become. FIG. 7 shows only a part of the upper contact 27 among the receptacle-side contacts 26, 27.

Next, the operation of the connector 10 and the receptacle 12 of the present embodiment configured as described above will be described below.
The connector 10 of this embodiment is used as an interface of an optical transceiver module by connecting a plug 11 to a receptacle 12. The plug 11 is connected to the receptacle 12 by inserting the plug body 13 of the plug 11 into the insertion port 18 of the receptacle housing 16 of the receptacle 12 as shown in FIG. In the insertion state, the contact portions 29 and 35 of the receptacle-side contacts 26 and 27 are elastically deformed in the insertion port 18 and are pressed against the plug-side contact 14, thereby causing the receptacle-side contacts 26 and 27 and The plug-side contact 14 is electrically connected.

  The receptacle-side contacts 26 and 27 and the plug-side contact 14 are electrically connected, so that data can be transmitted between each integrated circuit element on the printed circuit board 17 and the FPC via the connector 10. Become. In the case of the present embodiment, among the receptacle-side contacts 26 and 27 that are arranged side by side, a predetermined number (1 to 3) of the receptacle-side contacts 26 and 27 are ground contacts, A number of other receptacle-side contacts 26 and 27 are used as signal contacts. When the plug 11 is inserted into the insertion port 18, a small number of receptacle-side contacts 26, 27 that are ground contacts are replaced by a large number of receptacle-side contacts 26, 27 that are signal contacts. Prior to contact with the plug-side contact 14.

  By the way, as described above, when a high frequency signal is transmitted by the connector 10, impedance matching is performed between the signal source impedance and the load impedance in order to consume the power obtained from the signal source (power source) with the maximum load. Is done. In general, as the distance from the contact increases and the transmission distance becomes longer, the impedance is more likely to be reduced, and impedance matching becomes more difficult. If impedance matching cannot be achieved properly, signal reflection occurs at the end of the circuit and the signal waveform is disturbed, and normal data transmission cannot be performed.

  In this regard, in this embodiment, the distance (transmission distance) from the upper contact 35b to the base 34 in the upper contact 27 is compared with the distance (transmission distance) from the lower contact 29b to the base 28 in the lower contact 26. It is about twice as long. That is, the upper contact 27 has a longer transmission distance than the lower contact 26, and particularly the base portion 36 a of the intermediate portion 36 is far from the upper contact 35 a, so that the impedance is likely to be disturbed.

  However, in this embodiment, the air layer 39 is formed between the base side portions 36a of the intermediate portion 36 of each upper contact 27, and each base side portion 36a is not in contact with the receptacle housing 16, so that the impedance is disturbed. Hateful. Further, a gap 38 is formed between the base portion 36a of the intermediate portion 36 and the receptacle housing 16 (specifically, the inner back surface of the rear slit 24). Therefore, the presence of the air gap 39 in addition to the presence of the air layer 39 is a parallel arrangement suitable for further impedance matching, and the signal waveform is transmitted through the upper contact 27 without being disturbed. Is done.

  Further, since the bent portion 36c of the intermediate portion 36 in the upper contact 27 has a smoothly curved shape, compared with the case where the bent portion 36c is configured to have an edge shape, the corner ( It is prevented that the signal is concentrated on the edge) and consequently the signal waveform is disturbed, and the signal waveform is transmitted more preferably.

  On the other hand, in this type of high-frequency connector, the coplanarity of the receptacle-side contacts 26 and 27 (uniformity with respect to the mounting surface of the receptacle 12 (printed wiring board 17), so-called “coplanarity”) is ensured. It is important to maintain a high degree of mounting accuracy of 10. In this regard, in the present embodiment, as described above, the receptacle-side contacts 26 and 27 have the insertion portions 32 and 37 formed in the base-side portions 31 a and 36 a of the intermediate portions 31 and 36, respectively, in the insertion holes of the receptacle housing 16. It is inserted into 19F and 19R and supported and fixed (assembled) to the receptacle housing 16. Therefore, when the receptacle-side contacts 26 and 27 assembled in parallel with the receptacle housing 16 are mounted on the printed wiring board 17 when the base portions 28 and 34 are stabilized in the assembled state, the printed wiring board 17 is mounted. 17, the bases 28 and 34 in the juxtaposed state do not vary and do not float. That is, coplanarity is ensured.

  Further, as shown in FIG. 7, the solder cream 40 for connecting the base portions 28 and 34 of the receptacle-side contacts 26 and 27 and the conductive wire 20 of the printed wiring board 17 is usually very thin with a coating thickness of about 150 μm. Therefore, when the bases 28 and 34 of the receptacle-side contacts 26 and 27 are slightly scattered and floated, such as the base 34 shown by a two-dot chain line in FIG. 7, the solder cream 40 can be reliably connected. As a result, accurate data transmission is impaired. However, in this embodiment, since the coplanarity of the receptacle-side contacts 26 and 27 is well ensured as described above, such a problem hardly occurs.

  Further, when the receptacle-side contacts 26 and 27 are assembled to the receptacle housing 16 by fitting the fitting portions 32 and 37 into the fitting holes 19F and 19R, if the fitting direction is twisted or the position is slightly displaced, There is a possibility that coplanarity cannot be secured. However, in the present embodiment, the insertion portions 32 and 37 of the receptacle-side contacts 26 and 27 are provided in the base-side portions 31a and 36a of the intermediate portions 31 and 36, and the base-side portions 31a and 36a are the contact-portion-side portions. It is wider and has a higher strength than 31b and 36b. Therefore, even when the insertion direction is slightly twisted during assembly (insertion), the positions of the base portions 28 and 34 hardly vary, and there is little possibility of deformation due to the reaction force during insertion. It is easy to be secured.

According to the connector 10 and the receptacle 12 of the above embodiment, the following effects can be obtained.
(1) In the above embodiment, the air layer 39 made of air having a lower dielectric constant than the liquid crystal polymer (LCP) that is the material for forming the receptacle housing 16 is formed between the base side portions 36 a of the intermediate portion 36 of the upper contact 27. ing. Therefore, the impedance of the upper contact 27 can be increased (for example, as described above, the formation interval of the upper contact 27 is approximately 0.2 mm) by an easy configuration in which the air layer 39 is interposed between the upper contacts 27. Matching can be suitably achieved.

  Note that the formation of the air layer 39 between the adjacent upper contacts 27 from the contact portion 35 to the entire intermediate portion 36 of the upper contacts 27 makes the support and fixing state (parallel state) of the upper contacts 27 unstable. In view of securing the above-described coplanarity, it is not preferable. In this regard, in the above-described embodiment, the air layer 39 is provided between the base portion side portions 36a of the intermediate portion 36, and the contact portion 35 and the contact portion side portion 36b of the intermediate portion 36 are sandwiched in the front side upper slit 22b. Therefore, the upper contacts 27 are in a stable arrangement, and are in a suitable side-by-side configuration that does not adversely affect coplanarity.

  (2) In addition, in the above embodiment, the gap 38 is formed between the base portion 36 a of the intermediate portion 36 in the upper contact 27 and the receptacle housing 16 (specifically, the inner back surface of the rear slit 24). Therefore, it is a mode suitable for further impedance matching, and can be transmitted without disturbing the signal waveform.

  (3) In the above-described embodiment, in the receptacle-side contacts 26 and 27, the fitting portions 32 and 37 that are fitted into the fitting holes 19F and 19R of the receptacle housing 16 are formed in the base-side portions 31a and 36a of the intermediate portions 31 and 36, respectively. Has been. For this reason, it is possible to stably support and fix the receptacle-side contacts 26 and 27 to the receptacle housing 16 in a juxtaposed manner while ensuring coplanarity. In order to ensure this coplanarity, conventionally, the signal and ground contacts are fixed to the receptacle via a single plate-like organizer plate, which increases the number of members and increases the cost. It was. Compared with such a conventional configuration, in the present embodiment, there is no need for a separate member (organizer plate) for ensuring coplanarity, and the configuration can be simplified as a whole.

  (4) In the above embodiment, the bent portion 36c of the intermediate portion 36 in the upper contact 27 has a smoothly curved shape, so that signals are not concentrated in the bent portion 36c of the intermediate portion 36. A signal waveform can be transmitted more suitably.

The present embodiment may be changed to another embodiment (another example) as follows.
In the above-described embodiment, the bent portion 36c of the intermediate portion 36 in the upper contact 27 may not be a smooth curved shape but may be a shape bent at a right angle, for example.

  In the above embodiment, the gap 38 is provided between the base portion 36a of the intermediate portion 36 in the upper contact 27 and the receptacle housing 16 (the inner back surface of the rear slit 24). However, this gap 38 is not provided. Also good. Even in such a configuration, if the air layer 39 is provided between the base side portions 36a of the intermediate portion 36 in each upper contact 27, impedance matching can be achieved satisfactorily.

In the above embodiment, the base portion side portion 36a of the intermediate portion 36 in the upper contact 27 may be formed to have the same width as the contact portion side portion 36b.
In the above embodiment, the air layer 39 is provided between the base part 36a of the intermediate part 36 of each upper contact 27. However, the air layer 39 extends from the base part 36a to the contact part part 36b. It may be configured.

  The connector 10 is not limited to an optical transceiver module as long as it is used as an interface for transmitting an electrical signal, and may be applied to a known transceiver module that transmits only an electrical signal.

Next, the technical idea that can be grasped from the above embodiment and other examples will be described below.
(A) a receptacle housing having an insertion port through which a plug can be inserted and removed; and a plurality of receptacle contacts on the receptacle housing at predetermined intervals in a direction intersecting the insertion direction of the plug with respect to the insertion port; A receptacle arranged in parallel with a plurality of plug-side contacts arranged in parallel with the plug, wherein the receptacle-side contact includes a contact portion having a contact point with the plug-side contact, and the receptacle housing. When mounted on a mounting board, the base part connected to a conductor formed on the mounting board, and an intermediate part that connects the contact part and the base part are configured. When the receptacle-side contact is assembled to the receptacle housing, the receptacle housing Receptacle fitting portion to be fitted into entry apertures is characterized in that it is protruded.

  According to this technical idea (a), since the support fixing point of the receptacle-side contact with respect to the receptacle housing is close to the base side, the coplanarity of the receptacle-side contacts assembled in parallel can be easily ensured. Become.

  (B) In the above technical idea (a), the receptacle-side contact has a thin plate shape, and the intermediate part is formed wider at the base part than at the contact part. Receptacle to be.

  According to this technical idea (b), since the strength of the base side part of the intermediate part in the receptacle side contact that receives a reaction force when inserting the insertion part into the insertion hole of the receptacle housing can be improved, The effects that can be achieved in (a) can be achieved more reliably.

  (C) The receptacle described in the technical idea (b) or the technical idea (b), and the receptacle of the receptacle when the receptacle is inserted into the receptacle and inserted into the receptacle. A connector comprising: a plug in which a plurality of plug-side contacts in contact with the side contacts are arranged in parallel.

  According to this technical idea (C), the effects that can be achieved in the technical idea (A) and (B) related to the receptacle can be similarly enjoyed in the connector.

(A) is a perspective view showing a connector in a state where the plug and the receptacle are not coupled, and (b) is a perspective view showing the connector in a state where the plug and the receptacle are coupled. The front view of a receptacle. FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. The partially cutaway perspective view of a receptacle. FIG. 4 is a cross-sectional view taken along line BB in FIG. 3. The elements on larger scale of the part enclosed with the dashed-two dotted line of FIG. FIG. 4 is a cross-sectional view taken along line CC in FIG. 3.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Connector, 11 ... Plug, 12 ... Receptacle, 14 ... Plug side contact, 15, 20 ... Conductor, 16 ... Receptacle housing, 17 ... Printed wiring board (mounting board), 18 ... Insertion port, 19F, 19R ... Insertion hole 26 ... Receptacle side contact (lower contact), 27 ... Receptacle side contact (upper contact), 27a ... Blank contact, 28, 34 ... Base, 29, 35 ... Contact part, 29a, 35a ... Contact, 31, 36 ... Intermediate part, 31a, 36a ... base side part, 31b, 36b ... contact part side part, 32, 37 ... insertion part, 36c ... bent part, 38 ... gap, 39 ... air layer.

Claims (8)

A receptacle housing formed with an insertion port for allowing the plug to be inserted and removed; and a plurality of receptacle contacts on the plug housing at predetermined intervals in a direction intersecting the insertion direction of the plug with respect to the insertion port; A plurality of the plug-side contacts arranged side by side are arranged side by side, and each of the receptacle-side contacts is assembled to the receptacle housing with an air layer interposed between adjacent receptacle-side contacts. A receptacle characterized by that. The receptacle-side contact includes a contact portion having a contact point with the plug-side contact, a base portion connected to a conductive wire formed on the attachment substrate when the receptacle housing is mounted on the attachment substrate, and the contact portion. An intermediate part connecting the base part,
The receptacle according to claim 1, wherein the air layer is formed between intermediate portions of the receptacle-side contacts. 3. The receptacle according to claim 2, wherein the air layer is formed between base-side portions of an intermediate portion of the receptacle-side contacts. The base portion of the intermediate portion is formed with a protruding portion that is inserted into the insertion hole of the receptacle housing when the receptacle-side contact is assembled to the receptacle housing. The receptacle according to claim 3. 5. The receptacle side contact according to any one of claims 2 to 4, wherein the receptacle side contact has a thin plate shape, and an intermediate part thereof is formed wider at the base side part than at the contact part side part. The receptacle according to one item. The receptacle according to any one of claims 2 to 5, wherein a gap is formed between a proximal end portion of the intermediate portion of the receptacle-side contact and the receptacle housing. The intermediate portion of the receptacle-side contact is substantially L-shaped when viewed from the side-by-side direction of the receptacle-side contacts, and the bent portion is smoothly curved. The receptacle according to claim 6. The receptacle according to any one of claims 1 to 7, and the receptacle can be freely inserted into and removed from the insertion port of the receptacle, and contacted with each receptacle-side contact of the receptacle when inserted into the insertion port. A plug comprising a plurality of plug-side contacts arranged in parallel.

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