JP2013138026A - Photoelectric composite connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a photoelectric composite connector the strength of which is enhanced by molding a ground plate integrally with a housing.SOLUTION: The photoelectric composite connector is fitted in the fitting part of a mating connector and fitted thereto thus constituting a photoelectric conversion device. The photoelectric composite connector has a housing molded integrally with a ground plate, and a lock hole is formed by providing a notch at a part of the ground plate exposed from the housing. When the photoelectric composite connector is fitted in the fitting part of a mating connector, an elastic protrusion provided in the fitting part is engaged with the lock hole of the photoelectric composite connector thus locking the fitting of a photoelectric composite conversion device and the mating connector.

Description

  The present invention relates to a composite optoelectric connector.

  An example of a conventional photoelectric composite connector is disclosed in Japanese Patent Laid-Open No. 2007-328018. FIG. 11 is a cross-sectional view of the center line of the photoelectric composite connector 100 disclosed herein.

  The connector 100 includes a pair of a plug-side connector (optical module-side connector) 120 and a receptacle-side connector 180 that can be fitted to each other in the vertical direction. The receptacle-side connector 180 is mounted on the motherboard 110, and the plug-side connector 120 is fitted to the mounted receptacle-side connector 180.

  The plug-side connector 120 includes a shell 130 that covers the outside of the housing mounted on the motherboard 110. Inside the shell 130, various components such as an optical module 150 and a module substrate 157 are provided. After forming a substantially rectangular housing as a whole, the shell 130 is attached so as to cover from the outside in a cylindrical shape in a close contact state around the side surface 117 and in a non-contact state in a front portion thereof.

  In addition to protecting the components in the shell from external impact, the shell 130 also functions as an electric shield, more specifically, a ground plate. Any part of the shell 130 is connected to the ground, and the plug-side connector 120, more specifically, the connector 100 is connected to the ground through the shell 130.

  However, if the ground plate is mounted after molding the housing as in this conventional example, the assembly time and labor are increased, and the manufacturing cost also increases. Further, when the ground plate is mounted after being molded, the strength surface is often weak.

JP 2007 328018 A

  The present invention was made to solve such problems in the prior art, and provides an optical / electrical composite connector in which the strength of the connector is enhanced by, for example, integrally molding a ground plate with the housing. With the goal.

  The present invention relates to an opto-electric hybrid connector that forms a photoelectric conversion device by fitting into the mating connector by being fitted into a mating portion of the mating connector, and includes a housing integrally formed with a ground plate, A lock portion is formed on a part of the ground plate exposed from the housing, and a corresponding lock portion provided in the fitting portion when the photoelectric composite connector is fitted into the fitting portion of the mating connector. An opto-electric composite connector that engages with a lock portion of the opto-electric composite connector and locks the fitting of the opto-electric composite converter and the mating connector.

In the connector, the lock portion may be formed as a lock hole by providing a notch in a part of the ground plate exposed from the housing, and the corresponding lock portion may be formed as an elastic protrusion.
Further, the elastic protrusion is formed as a part of the shell of the mating connector, and the elastic projection is brought into contact with the lock hole when the opto-electric composite connector and the mating connector are fitted, so that the ground plate And the shell can be electrically connected.

  Further, in the connector, a part of the ground plate forming the lock hole is positioned closer to the fitting part than the lock hole when the photoelectric composite connector and the mating connector are fitted. In addition, before the elastic protrusion is engaged with the lock hole, the elastic protrusion can be brought into contact with the part to electrically connect the ground plate and the shell.

In the connector, the photoelectric composite connector includes a projecting portion that can project outside the fitting portion even when the photoelectric composite connector is fitted into the fitting portion. One end in the longitudinal direction of the connector, or in the vicinity thereof, the protruding portion is formed in a state including a part of the ground plate using the housing integrally formed with the ground plate, By moving the protrusion so as to be separated from the fitting portion, the fitting of the photoelectric composite connector fitted into the fitting portion is centered on the other end in the longitudinal direction of the photoelectric composite connector. It is possible to remove the optical / electrical composite connector from the fitting portion by rotating at the joint portion and using this rotation.
In the above connector, it is preferable that a taper surface inclined at an acute angle in a direction opposite to the direction of the rotation is provided at the other end to shift the center point of the rotation.
Furthermore, in the above connector, a part of the ground plate may be exposed from the housing, and the component parts of the photoelectric composite connector may be disposed on the exposed portion.
Further, in the connector, a wall for raising the ground plate and shielding the component from the outside can be provided.

In the connector, some of the plurality of terminals may be used as ground terminals and may be in direct contact with a part of the ground plate exposed from the housing.
Further, in the above connector, when the photoelectric composite connector is fitted to the mating connector, the ground terminal may be disposed so as to contact the signal terminal before the signal terminal.

  According to the present invention, the strength of the connector can be enhanced, and the assembly time can be shortened.

It is a usage example of the photoelectric conversion apparatus by this invention, Comprising: It is a perspective view which shows the state after the fitting of a receptacle connector and a plug connector. It is a usage example of the photoelectric conversion apparatus by this invention, Comprising: It is a perspective view which shows the state before fitting of a receptacle connector and a plug connector. It is a top view of the plug connector seen from the fitting side. It is a perspective view of the plug connector seen from the fitting side. It is a top perspective view of a ground plate. It is the figure which showed the upper surface perspective view of the plug housing integrally molded with the ground board in the state before attaching a plug terminal. It is the figure which showed the upper surface perspective view of the plug housing integrally molded with the ground board in the state after attaching the plug terminal. It is a figure explaining the function of a knob. It is a figure which shows the structure where the taper surface is not provided in the other end. It is a figure explaining the formation method of a submount. It is a center line cross-sectional view of a photoelectric composite connector according to the prior art.

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 and FIG. 2 show usage examples of the photoelectric conversion apparatus 10 according to one embodiment of the present invention. The photoelectric conversion device 10 includes a pair of a receptacle connector 20 (mating connector) and a plug connector (composite photoelectric connector) 30 that can be fitted to each other. FIG. 1 shows a state after fitting, and FIG. 2 shows a state before fitting. The plug connector 30 is used by being fitted into the concave fitting portion 23 of the receptacle 20. The plug connector 30 and the receptacle connector 20 can be formed as a single photoelectric conversion device 10 only after being fitted to each other.

  The plug connectors 30 may be connected to each other via the optical fiber cable 12 as shown. Although not particularly illustrated, the plug connector 30 may be provided only at one end of the optical fiber cable 12 and the other end may be connected to the apparatus. Unlike this, the receptacle connector 20 is used by being fixed to a wiring board or the like (not shown).

  The receptacle connector 20 may be considered as a general electrical connector. On the other hand, the plug connector 30 can exhibit an electrical / optical conversion function (which can also be regarded as a transmission function) and can be regarded as an optical / electrical conversion function (reception function) by including various photoelectric exchange parts. Can also be demonstrated). For example, when the receptacle connector 20 and the plug connector 30 are fitted, the optical signal transmitted through the optical fiber cable 12 is converted into an electrical signal by the action of the photoelectric conversion component provided in the plug connector 30 and then transmitted to the wiring board. Conversely, the electrical signal transmitted through the wiring board can be converted into an optical signal and then transmitted to the optical fiber cable 12.

  The receptacle connector 20 includes a frame-shaped receptacle housing 21, a plurality of receptacle terminals 84 installed thereon, and a receptacle shell 27 that covers the outside of the receptacle housing 21. As shown in the figure, the receptacle housing 21 has a frame shape, and a fitting portion 23 into which the plug connector 30 is fitted may be formed. The bottom of the fitting portion 23 may be formed by the receptacle connector 20 itself. As described above, it may be formed of a wiring board or the like for fixing the receptacle connector 20.

  The receptacle terminal 84 is press-fitted and fixed to the receptacle housing 21. The receptacle terminal 84 includes two types of terminals, a ground terminal (G) 85 and a signal terminal (S) 86. These two types of terminals 85 and 86 are arranged on each of the side wall portions 29 of the receptacle housing 21 extending in parallel in the longitudinal direction so as to surround both the outer surface and the upper surface of the fitting portion 23 in order of GSGSSSSG from the front end side. These end portions are soldered to the wiring board. However, the number of ground terminals 85 and signal terminals 86 is arbitrary. Each of the ground terminal 85 and the signal terminal 86 protrudes into the fitting portion 23 at a part 87 thereof, and when the plug connector 30 is fitted into the fitting portion 23, a corresponding terminal (plug terminal 34) on the plug connector 30 side. Can be connected with.

  The receptacle shell 27 covers substantially the entire side surface of the receptacle housing 21 and a part of the upper surface thereof. The receptacle shell 27 is fixed to the receptacle housing 21 by press-fitting the press-fitting portion 24 into the receptacle housing 21 or the like. In the vicinity of the distal end of the press-fit portion 24, a corresponding lock portion provided corresponding to the lock portion 65 on the plug connector 30 side is formed, for example, as an elastic protruding portion 22 protruding into the fitting portion 23, and the receptacle connector 20 When the plug connector 30 is fitted into the fitting portion 23, the elastic protrusion 22 is engaged with the lock portion 65 on the plug connector 30 side to lock the fitting between the plug connector 30 and the receptacle connector 20.

  The receptacle shell 21 and the receptacle shell 27 that covers the outside of the receptacle housing 21 are extended to the outside in relation to the fixing position of the receptacle terminal 84. For example, the press-fit position of the receptacle terminal 84 is set at a position deeper than the upper surface 25 of the receptacle housing 21, and the upper surface 28 of the receptacle shell 27 is set one step higher than the receptacle terminal 84. With such a configuration, the receptacle terminal 84 is positioned inside the receptacle housing 21 and the receptacle shell 27 so that the receptacle terminal 84 does not protrude to the outside. In particular, the external contact of the signal terminal 86 is effectively prevented. Such a configuration of the receptacle housing 21 not only protects the receptacle terminal 84 itself, but also has an advantage of preventing external contact of the plug terminal 34 provided on the plug connector 30 when the receptacle connector 20 and the plug connector 30 are fitted. is there.

  The plug connector 30 includes a plug housing 31, a plurality of plug terminals 34 installed on the plug housing 31, and a ground plate 60 formed integrally with the plug housing 31. FIG. 3 is a plan view of the plug connector 30 viewed from the fitting side of the receptacle connector 20 and the plug connector 30, and FIG. 4 is a perspective view thereof. 5 is a top perspective view of only the ground plate 60, FIG. 6 is a top perspective view of a plug housing formed integrally with the ground plate, and FIG. A top perspective view of the integrally formed plug housing is shown with the plug terminals attached.

  Similar to the ground terminal 85, the plug terminal 34 includes two types of terminals, a ground terminal (G) 35 and a signal terminal (S) 36. These two types of terminals are arranged in the order of GSGSSSSG from the distal end side of the plug housing 31. When the ground terminal 35 is arranged on the front end side of the signal terminal 36 in this way, for example, when the plug connector 30 is fitted into the fitting portion 23 of the receptacle connector 20 by a method of positioning from the front end side. The ground terminal 35 can be brought into contact with the ground terminal 85 on the receptacle connector 20 side before the signal terminal 36 (considered as a normal mounting method), and the influence of noise or the like on the signal terminal 36 can be reduced. it can. Note that the number of ground terminals and signal terminals is arbitrary as in the case of the receptacle terminals.

  The plug terminal 34 is press-fitted and fixed to the plug housing 31 as a press-fit terminal. Since the plug terminal 34 is press-fitted into the plug housing 31 after the plug housing 31 and the ground plate 60 are integrally molded, adverse effects due to heat and contact with the mold during the integral molding can be ignored. When the receptacle connector 20 and the plug connector 30 are fitted, the plug terminal 34 is connected to the receptacle terminal 84 and the corresponding terminals. Since the plug terminals 34 and the receptacle terminals 84 are arranged along the longitudinal direction of the plug housing 31 and the receptacle housing 21, a plurality of terminals are connected along the longitudinal direction when fitted. Become.

  The plug housing 31 has a substantially rectangular shape as a whole, but extends to the outside in relation to the fixing position of the plug terminal 34. In other words, as shown in FIG. 7 and the like, the press-fitting position of the plug terminal 34 is set at a position deeper than the outer surface 73 and the upper surface 74 of the plug housing 31. For example, the upper surface 74 of the plug housing 31 is set one step higher than the plug terminals 34 using the wall 32 provided between the plug terminals 34, and the outer surface 73 of the plug housing 31 is set to the wall 32. Is used to project outward from the plug terminal 34. With such a configuration, the plug terminal 34 is positioned inside the plug housing 31 so that the plug terminal 34 does not protrude to the outside, and even when the plug connector 30 is touched, the plug terminal 34 is not touched. In this way, especially the external contact of the signal terminal 36 is effectively prevented. When a finger or the like touches the signal terminal 36, there is a risk of damaging the internal chip due to static electricity. With such a configuration, the risk can be effectively removed.

  The plug housing 31 has two concave portions, that is, a first concave portion 46 and a second concave portion 47 on the fitting side with the receptacle connector 20. Various components are arranged in these two recesses 46 and 47 to reduce the size of the apparatus. These concave portions 46 and 47 are formed by using two side wall portions 49 extending in parallel in the longitudinal direction, a bottom portion integrally formed with the ground plate 60, or an exposed portion of the ground plate 60. Further, the recesses 46 and 47 are partitioned from each other by a partition 39 formed by a part of the plug housing 31 and sealed with different types of resins.

  In the first recess 46, an optical signal and an electric signal such as a surface emitting optical semiconductor (VCSEL) 43 such as a semiconductor laser or a photodiode, and a submount 44 for supporting the optical semiconductor 43 on the front surface are provided. Or an optical component that transmits an optical signal, such as an optical fiber cable 12 (these optical-related components are referred to as “first type components”). The The first recess 46 is sealed by pouring ultraviolet (UV) curable resin (first resin) there. The reason why the ultraviolet curable resin is used as the resin for sealing the first recess 46 is that the first component is preferably fixed with high accuracy in a short time.

  In the second recess 47, an electrical component that processes only an electrical signal, such as the signal relay component 52 that enables wiring to the IC pad 51 or a remote terminal (this electrical component is referred to as a “second type component”). Is called). The signal relay component 52 has a transmission path 54 having impedance matching on at least one surface, and one end of a metal wire 53 is connected to an end of the transmission path 54, and the other end of the metal wire 53 is a connector terminal 36 or an IC pad. 51. The second recess 47 is after these electrical components are arranged, and preferably after the first recess 46 is sealed with an ultraviolet curable resin, a thermosetting resin (second resin) is poured therein. It is sealed by. The reason why the thermosetting resin 58 is used as the resin for sealing the second concave portion 47 is that a component (for example, a metal wire 53 or other electric wire) that does not reach the light beam when an ultraviolet curable resin is applied to the portion. This is because, although the resin is uncured in the shadow part of the component), application of the thermosetting resin eliminates the uncured part and improves the reliability of the product.

  As shown in FIG. 5, the ground plate 60 is integrally formed with the plug housing 31 in a state of being bent into a predetermined shape in advance. If the ground plate 60 is mounted on the molded plug housing 31, it takes time and cost to assemble, and is disadvantageous in terms of strength. By integrally molding, such a problem is solved. However, a part of the ground plate 60 is exposed from the plug housing 31 even after integral molding. The exposed portion includes, for example, a part of the bottom portion 62 of the ground plate 60, a ground terminal contact portion 64 provided on the top surface on the front end side, and a lock portion 65 provided on the side surface on the rear end side.

  The reason for exposing part of the bottom 62 is to facilitate mounting of the optical semiconductor 43, the submount 44, and the like. By using a metal mounting portion, the component parts can be solder mounted by reflow or the like. In order to prevent external leakage of electromagnetic waves from the component parts, a wall 63 (see FIG. 5) may be formed by raising a part of both side surfaces vertically near the center of the ground plate 60. However, these walls 63 are completely covered by the plug housing 31 and are not exposed to the outside.

  A ground terminal contact portion 64 is formed by folding a part of the ground plate 60 upward. By exposing the ground terminal contact portion 64, the ground terminal 35 of the plug connector 30 can be brought into direct contact with each other, and conduction between the ground plate 60 and the ground terminal 35 can be facilitated.

  Furthermore, the ground plate 60 may be exposed in the lock portion 65 and the vicinity thereof, and the lock portion may be formed of metal. Thereby, the lock can be strengthened, and in addition, the ground function can be strengthened. The lock portion 65 can be formed by, for example, raising part of both side surfaces of the ground plate 60 vertically in the vicinity of the arrangement of the optical fiber cable 12, particularly the fiber strand 14 thereof. The upper portion of the lock portion 65 is preferably bent into a semi-cylindrical shape in order to maintain strength or to soften the collision with the elastic protruding portion 22 to make the fitting smooth. In the vicinity of the bottom of the lock portion 65, a lock hole 67 is formed by providing a notch in a part of the ground plate 60, for example, corresponding to the corresponding lock portion 22 on the receptacle connector 20 side. When the plug connector 30 is fitted into the fitting portion 23 of the receptacle connector 20, the elastic protrusion 22 of the receptacle connector 20 is engaged with the lock hole 67 to lock the fitting between the plug connector 30 and the receptacle connector 20. be able to. In addition, according to this structure, extraction force can be strengthened and it can also give a click feeling at the time of a lock | rock. Further, in this configuration, since the elastic protrusion 22 which is a part of the receptacle shell 27 and the lock hole 67 which is a part of the ground plate 60 are in direct contact with each other at the time of locking, the ground plate 60 and the receptacle of the plug connector 30 are in contact. The receptacle shell 27 of the connector 20 can be brought into electrical contact during fitting to enhance the ground function. Note that the top portion 70 of the lock hole 67 positioned on the fitting side, that is, the vicinity of the top of the semi-cylindrical shape, is fitted to the receptacle connector 20 rather than the lock hole 67 when the plug connector 30 and the receptacle connector 20 are fitted. The plug terminal 34 and the receptacle terminal 84 are brought into contact with each other before the elastic protrusion 22 of the receptacle connector 20 and the lock hole 67 of the plug connector 30 are engaged with each other. It is also possible to electrically connect the ground plate 60 and the shell 27 by bringing the elastic protruding portion 22 and the top portion 70 into contact with each other, and thereby more reliably exhibit the ground function.

  At one end in the longitudinal direction of the plug connector 30 (ground plate 60), for example, at the rear end of the plug connector 30 or in the vicinity thereof, a knob 37 used for releasing the fitting of the receptacle connector 20 and the plug connector 30 is provided. May be. As is apparent from FIG. 5 and the like, the knob 37 is formed so as to include a part of the ground plate 60 using the plug housing 31 formed integrally with the ground plate 60, and the inside is reinforced by metal. ing. The function of the knob 37 will be described with reference to FIG. As shown in FIG. 8A, the knob 37 can protrude outside the fitting portion 23 even when the plug connector 30 is fitted into the fitting portion 23 of the receptacle connector 20. As shown in FIG. 5B, by applying a force in the direction of the arrow “A” shown in the figure by hooking a finger or a tool (driver) on the knob 37, in other words, the knob 37 is pulled away from the fitting portion 23. The plug connector 30 fitted into the fitting portion 23 is moved to the other end in the longitudinal direction of the plug connector 30 (ground plate 60), here, the fitting portion 23 around the front end of the plug connector 30. The plug connector 30 is removed from the fitting portion 23 of the receptacle connector 20 against the connection between the terminals of the plug connector 30 and the receptacle connector 20 as a result. As described above, since the knob 37 is internally reinforced, there is almost no risk of the knob 37 being damaged by this operation.

  In order to eliminate the problem at the time of rotation, a tapered surface 33 inclined to form an acute angle “α” in the direction opposite to the rotation direction (the direction of the arrow “A” in the figure) is provided at the rotation portion of the plug connector 30. May be. In order to explain the effect obtained by providing the tapered surface 33, FIG. 9 shows a structure without the tapered surface corresponding to FIG. In FIG. 9, the same reference numerals are used for members corresponding to those in FIG. 8, followed by “A”.

  As described above, the walls 32 and 32A partitioning the plug terminals 34 or the plug terminals 34A are extended to the outside in relation to the plug terminals 34 and the plug terminals 34A. As a result, when the receptacle connector 20 and the plug connector 30 or the receptacle connector 20A and the plug connector 30A are fitted together, the contact portion of the receptacle terminal (the portion corresponding to 87 in FIG. 2) is a gap between the walls 32 and 32A. It is supposed to be in a state where it entered. When the plug connector is rotated in such a state, the plug housing 31A rotates about 56A in the state where the tapered surface is not provided as shown in FIG. 9, and as a result, the receptacle terminal The position of the contact portion is shifted in the longitudinal direction of the plug connector 30A and the receptacle connector 20A in relation to the fixed position of the plug terminal 34A, and a sliding mark (track of the contact portion) as shown in 69A is formed. . Obviously, the sliding trace 69A describing such a locus collides with the wall 32A. In such a rotation method, the contact portion and the wall 32A interfere with each other so that the receptacle terminal 84A and the wall 32A do not move. There is a risk of being destroyed. On the other hand, when the tapered surface 33 is provided as shown in FIG. 8, the center point 56 of the rotation of the plug housing 31 is shifted downward, so that the contact portion is not greatly displaced from the plug terminal 34. The part always draws a clean arcuate locus at the position of contact with the plug terminal 34, that is, a sliding mark 69. As a result, the risk of the receptacle terminal 84 being deformed by the sliding marks 69 can be eliminated. In order to allow the sliding trace 69 to draw a more appropriate trajectory, the position where the contact portion is arranged is a substantially intermediate point in the thickness direction of the receptacle terminal 84, in other words, “a” and “ A position where the lengths of a ′ ”are equal is preferable.

  Finally, a method for forming the submount 44 will be described with reference to FIG. As shown in FIG. 10A, first, gold plating (shown in the figure) is applied to the entire upper surface of the wafer 90a on which the slit 90b is formed and the inner wall surface of the slit 90b. Slits 93 and 94 are provided in a cross shape on the side surfaces. As a result, gold plating is left on the upper surfaces 91a and 91b, and the gold plating is left in a state of being electrically connected to the side surface 92a and the upper surface 91d. Is left behind. Further, the upper surfaces 91a to 91d are insulated from each other by the slits 93 and 94, and the side surfaces 92a and 92b are insulated from each other. After that, as shown in FIG. 10B, the wafer 90a is cut into the submounts 44, and the optical semiconductor 43 is placed on the upper portion 91d of each submount 44 without changing the direction thereof, and the side surfaces 92a and the upper surfaces 91d. Mounted in a conductive state, that is, mounted from above. Further, as shown in FIG. 10C, a predetermined portion of the optical semiconductor 43 is electrically connected to a predetermined portion of the submount 44, that is, the side surface 92b and the upper surface 91c. Wire bonding is performed. After all these operations are completed, each submount 44 is rotated once by 90 degrees in the direction indicated by the arrow “c” as shown in FIG. Place (mount) on the ground plate 60). After the arrangement, the surfaces 92a and 92b are connected to the IC pad 51 (see FIG. 4 etc.) by wire bonding, and the surfaces 91a and b are connected to the ground plate 60 (see FIG. 4 etc.) to be grounded by soldering or the like. . With this method, the submount needs to be rotated only once, and the manufacturing process is reduced.

  The present invention can be widely used for communication using a mixture of light and electricity.

DESCRIPTION OF SYMBOLS 10 Opto-electric connector 20 Receptacle connector 21 Receptacle housing 22 Elastic protrusion part 27 Receptacle shell 30 Plug connector 31 Plug housing 34 Plug terminal 35 Ground terminal 36 Signal terminal 37 Knob 38 Concave shape 39 Partition 42 Terminal arrangement part 44 Submount 46 1st One recess 47 Second recess 60 Ground plate 84 Receptacle terminal (second terminal)
85 Ground terminal 86 Signal terminal

Claims (10)

In the photoelectric composite connector that forms the photoelectric conversion device by fitting into the mating connector by being fitted into the mating portion of the mating connector,
A housing integrally formed with the ground plate, and forming a lock portion on a part of the ground plate exposed from the housing;
When the composite opto-electric connector is fitted into the mating part of the mating connector, the corresponding lock part provided in the fitting part is engaged with the lock part of the opto-electric composite connector, so that the photoelectric A photoelectric composite connector is characterized in that the fitting between the composite conversion device and the mating connector is locked.   The said lock | rock part is formed as a lock hole by providing a notch in a part of said ground plate exposed from the said housing, The said corresponding | compatible lock | rock part is formed as an elastic protrusion part. Photoelectric composite connector.   The elastic protrusion is formed as a part of a shell of the mating connector, and when the photoelectric composite connector and the mating connector are fitted, the elastic protrusion is brought into contact with the lock hole, and the ground plate and the The photoelectric composite connector according to claim 2, wherein the shells are electrically connected.   A part of the ground plate that forms the lock hole is positioned closer to the fitting part than the lock hole when the photoelectric composite connector and the mating connector are fitted, and the elastic protrusion part 4. The photoelectric composite connector according to claim 2, wherein the elastic protrusion is brought into contact with the part to electrically connect the ground plate and the shell before engaging the lock hole with the lock hole. 5.   The photoelectric composite connector has a protruding portion that can protrude outside the fitting portion even when the photoelectric composite connector is fitted into the fitting portion, in the longitudinal direction of the photoelectric composite connector. The projecting portion is formed in a state including a part of the ground plate using the housing integrally formed with the ground plate, and has the projecting portion By moving away from the fitting portion, the photoelectric composite connector fitted into the fitting portion around the other end in the longitudinal direction of the photoelectric composite connector at the fitting portion. The photoelectric composite connector according to any one of claims 1 to 4, wherein the photoelectric composite connector can be removed from the fitting portion by using the rotation.   6. The photoelectric composite connector according to claim 5, wherein a taper surface inclined so as to form an acute angle in a direction opposite to the direction of rotation is provided at the other end to shift the center point of rotation.   The photoelectric composite connector according to any one of claims 1 to 6, wherein a part of the ground plate is exposed from the housing, and the components of the composite photoelectric connector are disposed in the exposed portion.   The optoelectric composite connector according to claim 7, further comprising a wall that raises the ground plate and shields the component from the outside.   9. The photoelectric composite connector according to claim 1, wherein some of the plurality of terminals are used as ground terminals and are in direct contact with a part of the ground plate exposed from the housing.   The optical / electrical composite connector according to claim 1, wherein when the optical / electrical composite connector is fitted to the mating connector, the ground terminal is arranged so as to come into contact with the signal terminal before the signal terminal. .

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