JP2003248147A - Socket for optical connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To maintain the reliability of a socket for an optical connector high. <P>SOLUTION: The socket for the optical connector for connecting to a plug of the connector comprises a shutter 210' mounted in a hinge structure having a housing 205' formed with an inserting hole 220' in which the plug is inserted and a shaft 240' at an inlet side of the inserting hole to substantially close the inserting hole; and an elastic part 240' for energizing the shutter to the inlet side. The inserting hole has a space 225' for storing the shutter. When the plug is inserted into the hole, the shutter is pressed at a distal end side of the plug and intruded to the inside of the hole. When this connection is completed, the socket is stored in the space 225'. The housing has a first housing 205M' having a hole 220a' for mounting the shutter, and a second housing 205N' having a hole 205N3' in which the first housing is inserted, and also has an element chamber 250' having an optical element 290' at the innermost side of the inserting hole. The optical element 290' is sandwiched fixedly between the housing 205M' and the 205N' in the chamber. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a stationary DVD,
An optical connector socket provided in a device for outputting and / or inputting a digital signal such as a TV, an STB (set top box: satellite broadcasting adapter device), a CD, an MD, an amplifier, etc. The present invention relates to an optical connector socket that is connected to a plug of an optical connector.

[0002]

2. Description of the Related Art A socket of an optical connector (hereinafter, also simply referred to as "socket") has an insertion hole portion of the socket.
If dust enters when the plug of the optical connector is not inserted, the optical element installed behind the insertion hole will be contaminated and the optical transmission efficiency will drop, resulting in a predetermined optical signal transmission. You may not be able to. Therefore, in the case of the socket of the conventional optical connector, generally, a cap having a shape substantially equal to the internal structure of the insertion hole is prepared separately, and when the plug is not inserted, the insertion hole The dust is prevented from entering by being fitted in (see, for example, Patent Document 1).

[0003]

[Patent Document 1] Japanese Utility Model Publication No. 7-19713 (Page 4)
(Fig. 3)

[0004]

However, since the cap is separated from the socket, it is easily lost after the cap is removed during use. If it is lost and left as it is, as described above, there is a high possibility that the predetermined optical signal cannot be transmitted due to contamination of the optical element or the like. In other words, it may malfunction, and the reliability of the optical connector socket is low.

On the other hand, in this way, in the insertion hole of the socket,
Even when the optical connector plug is not inserted, that is, when signal transmission is not required, when the power of the device equipped with this optical connector socket is turned on, the optical element in the optical connector socket is always It was operating. Therefore, the life of the optical element, and eventually the life of the socket, has been greatly shortened. As a result, even if the degree of contamination of the optical element is relatively small, it is easy to fail to transmit a predetermined optical signal. Therefore, from this point as well, the reliability of the socket of the optical connector is low.

Further, when the power source of the device is turned on in this manner, the optical element is always in the operating state, and thus the power consumption of the entire device is increased, which is an undesirable state.

A main object of the present invention is to provide an optical connector socket which can maintain high reliability of the optical connector socket. More specifically, an object of the present invention is to provide an optical connector socket in which means for preventing invasion of dust and the like and means for extending the life of an optical element are integrated.
Further, another object of the present invention is to provide an optical connector socket capable of reducing the power consumption of a device provided with the optical connector socket.

[0008]

In order to solve the above problems, an optical connector socket according to claim 1 of the present invention comprises:
A socket of an optical connector connected to a plug of an optical connector, the housing part having an insertion hole portion into which the plug is inserted, and a hinge structure having a shaft portion on an inlet side of the insertion hole portion are attached. The shutter has a shutter portion for substantially closing the insertion hole portion, and an elastic body portion for urging the shutter portion toward the inlet side. The insertion hole portion has a space for storing the shutter portion. Then, when the plug is inserted into the insertion hole, the shutter portion is pushed by the tip side of the plug to enter the inside of the insertion hole, and when the connection is completed, the shutter is stored in a space in the socket of the optical connector. The part has a first housing part having a hole into which the shutter part is attached, and a second housing part having a hole into which the first housing part is inserted. The optical element has an element chamber portion provided on the inner side of the insertion hole portion, and the optical element has the first housing portion and the second housing portion in the element chamber portion. It is clamped and fixed by.

Therefore, in the case of the optical connector socket according to claim 1 of the present invention, the shutter portion as a means for preventing the intrusion of dust and the like is integrally opened and closed at the inlet side of the insertion hole portion. There is. Since the shutter portion is biased toward the inlet side of the insertion hole portion by the elastic body portion, when the plug is not inserted into the insertion hole portion, the insertion hole portion is substantially closed ("substantially closed" means It means that it is in a closed state that can substantially prevent the entry of dust and the like. The same shall apply hereinafter).
When the plug is inserted into the insertion hole portion, the shutter portion is stored in the space of the insertion hole portion. After that, when the plug is pulled out from the insertion hole portion, the shutter portion basically automatically returns to the inlet side of the insertion hole portion by the elastic body portion.

Further, in the case of the socket of the optical connector according to the first aspect of the present invention, it can be separated into the two housing portions of the first and the second. Since the insertion hole portion is formed by the hole portion of the first housing portion and the back side of the hole portion of the second housing portion, the insertion hole portion is formed on the back side of the hole portion of the first housing portion. Therefore, an opening formed by removing a portion corresponding to the inner side of the hole of the second housing portion is provided. Since the shutter portion is attached to the hole portion of the first housing portion, the opening provided on the back side can be used when assembling the socket of the optical connector, and the setting work of the shutter portion can be facilitated.
Further, since the housing is divided into two housing parts, the mold can be made simpler and the mass productivity of the socket can be improved.

Further, in the optical connector inserted in the insertion hole portion, the optical element is sandwiched and fixed by the first housing portion and the second housing portion in the element chamber portion. The central axis of the plug and the optical axis of the optical element can be accurately aligned. Further, it is said that the optical element can be easily set by being sandwiched and fixed.

In an optical connector socket according to a second aspect of the present invention, a through hole for inserting the optical element is provided in the second housing portion, and the element chamber portion is provided with the first hole. And the second housing portion.

Therefore, in the case of the optical connector socket according to the present invention, since the optical element is inserted through the second housing portion and then the first housing portion is attached to the second housing portion, It becomes easy to set the optical element in the element room.

An optical connector socket according to a third aspect of the present invention is the optical connector socket according to the first or second aspect, when the shutter portion moves from the entrance side of the insertion hole portion to a predetermined position. A switch operated by the shutter portion is provided, and the elastic body portion having good conductivity is used on one side of the switch.

In the case of the optical connector socket according to claim 3 of the present invention, the elastic body portion is also used on one side of the switch.

In a socket of an optical connector according to a fourth aspect of the present invention, the shutter portion and the plug are inserted into the insertion hole portion instead of the elastic body portion according to the first, second or third aspect. At this time, a magnet may be provided so as to oppose the shutter portion so as to repel it.

Therefore, in the case of the optical connector socket according to claim 4 of the present invention, the shutter portion is automatically returned to the entrance side of the insertion hole portion by the repulsive force of the magnet instead of the elastic body portion. ing.

An optical connector socket according to claim 5 of the present invention is the optical connector socket according to claim 1, 2 or 3 which is a digital device such as a DVD, TV, STB (set top box), CD, MD, or amplifier. It is preferable that it is provided in an audio device.

The socket of the optical connector according to the first to fourth aspects of the present invention functions particularly advantageously when provided in a digital audio device.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION A socket 200 'of an optical connector according to a first embodiment of the present invention will be described below with reference to FIGS. The optical connector socket 200 'according to the first embodiment of the present invention shows an embodiment of the optical connector socket according to claim 1 of the present invention.

FIG. 1 is a view showing a second housing portion used for a socket of an optical connector according to a first embodiment of the present invention, where FIG. 1 (A) is a side view and FIG. 1 (B). Is a front view, (C) is a sectional view, (D) is a rear view, (E) is a bottom view, and FIG. 2 is an optical connector socket according to the first embodiment of the present invention. It is a figure which shows the 1st housing part used, Comprising: The figure (A) is a side view, the figure (B).
Is a front view, (C) is a cross-sectional view, (D) is a rear view,
The figure (E) is a bottom view, the figure (F) is an enlarged view of the portion indicated by J in the figure (E), and FIG. 3 is the assembly of the socket of the optical connector according to the first embodiment of the present invention. It is an explanatory view for explaining one side, and shows a state of being assembled in the direction of FIG. However, FIG. 6E is a reference diagram showing a state in which no optical element is installed.

FIG. 4 is a view showing an EIAJ standard rectangular plug to be connected to the sockets of the optical connectors according to all the embodiments of the present invention. FIG. 4 (A) is a front view,
FIG. 3B is a partially cutaway side view.

The socket 200 'of the optical connector according to the first embodiment of the present invention has an EIA as shown in FIG.
It is connected to the J standard square plug 100.

The square plug 100 is provided on the end side of the optical fiber 110 and has a substantially rectangular parallelepiped plug body 1.
20 and an engaging convex portion 150 protruding from the tip of the plug body 120.

The engaging convex portion 150 has a substantially hexagonal shape (hereinafter, this shape is abbreviated as "general hexagonal shape in a front view") as if the lower side of the home base is cut in a front view.
The whole is a portion to be engaged with an insertion hole portion 220 'or the like of a socket 200' or the like which will be described later. The engaging protrusion 150 is a portion on the plug body 120 side, and has an engaging protrusion main body 151 having a recess on the tip end side thereof, and the engaging protrusion portion main body 151 has a recess on the tip end side thereof. It has a plug tip portion 159 that is provided so as to project from the central portion and that engages with a plug tip holding portion 229 ′ or the like (or the projecting portion 900) of a socket 200 ′ or the like to be described later. Around the periphery of the plug tip 159 in the recess is a recess 152.

The engaging convex portion main body 151 has a substantially hexagonal shape in a front view, and has plug guide concave portions 221 'such as an insertion hole 220' of a socket 200 'described later,
221 'for insertion guide projections 151a, 151
a is projected. The engaging protrusion main body 151 has positioning protrusions 151b, 151b protruding from the upper and lower surfaces thereof. The engaging convex portion main body 151 has hypotenuse surfaces 151c and 151c of two hypotenuse portions having a substantially hexagonal shape in a front view on the lower surface side. The engaging convex portion main body 151 is provided with a taper 151t on its tip end surface.

In the recess 152, the plug tip holding portion 229 'and the like (or the protruding portion 900) provided on the inner side of the insertion hole 220' and the like of the socket 200 'and the like which will be described later are the EIA.
Those having a J standard depth dimension (that is, the protrusion 90
If it is 0), it is a portion that engages with this protruding portion.

The plug tip portion 159 is circular in a front view, and is a portion in which the outer periphery of the tip side portion of the optical fiber 110 is covered with a protective resin portion 159a. This protective resin portion 159a
A taper 159t is provided at the tip of the. The protective resin portion 159a is an extended portion of the engaging convex portion main body 151. That is, the engagement convex portion main body 151 is also made of resin.

As shown in FIGS. 1 to 3, an optical connector socket 200 'according to the first embodiment is an optical connector socket which is connected to a rectangular plug 100 of the optical connector. Insertion hole 22 into which 100 is inserted
0 ', a shutter portion 210' attached to the inlet side of the insertion hole portion 220 'by a hinge structure for substantially closing the insertion hole portion 220', and the shutter portion 21 '.
0'and an elastic body portion 230A 'for urging 0'to the inlet side.
When the square plug 100 is inserted into the insertion hole 220 ′, the shutter 210 ′ is pressed by the tip side of the square plug 100 and has a space 225 ′ for storing the space 10 ′. In the socket of the optical connector which enters the inside of ′ and is stored in the space 225 ′ when the connection is completed, the shutter portion 210 ′ holds the side surface side of the rectangular plug 100 while being stored in the space 225 ′. The upper positioning projection 151b provided on the side surface side of the engaging projection 150 of the square plug 100 with respect to the positioning recess 212 'provided on the front side of the shutter section 210' has an insertion hole. The lower positioning projection 1 provided on the side surface side of the engaging projection 150 of the square plug 100 with respect to the positioning hole 223 'provided on the bottom surface of 220'. 51b are respectively inserted, and the insertion hole portions 220 'are the hole portions 220a' of the first housing portion 205M 'to which the shutter portion 210' is attached.
The second housing portion 205N 'is formed with the inner side of the hole portion 205N3' into which the first housing portion 205M 'is inserted.

The housing portion 205 'includes a first housing portion 205M' and a second housing portion 205 which will be described later.
It consists of two, N '. The housing portion 205 '(that is, the state in which the two are combined) is a substantially rectangular parallelepiped, and an insertion hole portion 220' is formed on the lower front side thereof. An optical element 290 'is provided on the inner side of the insertion hole 220'.
An element chamber portion 250 '(which can be separated into two as will be described later) is sandwiched and fixed. The element chamber 250 ′ has an optical axis for aligning the optical axis of the optical element 290 ′ installed here with the central axis of the plug 100 mounted in the insertion hole 220 ′, and for fixing. It is formed in a shape along the outer shape of the element 290 '.

The insertion hole 220 'and the element chamber 25
A through hole serving as a plug tip holding portion 229 'is provided so as to communicate with 0'. Housing part 205 ′
Is provided with a fixing through hole 280 'on the upper side thereof. Further, three pairs of fixing elastic bodies 205N1 '(see FIG. 1) are provided on the bottom surface of the housing portion 205' so as to project.

The insertion holes 220 'are formed symmetrically, and the engaging projections 150 of the plug 100 (excluding the tip side portion of the plug tip portion 159 fitted in the plug tip holding portion 229). Has a space 220H 'in which the shutter is inserted and a space 225' extending in the space 220H 'for horizontally storing the shutter portion 210'.

Plug guide recesses 221 ′ and 221 ′ that engage with the insertion guide protrusions 151 a and 151 a of the engagement protrusion 150 are provided on both sides of the insertion hole 220 ′. In addition, the hypotenuse surfaces 151c and 151 of the engaging convex portion 150
As a portion corresponding to c, inclined surface portions 222 'and 222' are provided on both side surfaces on the lower side of the insertion hole portion 220 '. Further, on the bottom surface of the insertion hole 220 ', the positioning hole 223' into which the lower positioning projection 151b is inserted.
Is provided.

On the inclined surface portion 222 ', passage and locking of a locking convex portion 211a' (see FIG. 3B) of the shutter portion 210 ', which will be described later, are performed (this locking means that the shutter portion 210' is vertical. It means a lock to prevent it from rotating to the front side of the state.)
Therefore, a long hole 222a '(however, it does not penetrate like the long hole 222) is formed.

The width of the elongated hole 222a 'is such that the locking projection 211a' is inserted therein. Further, the longitudinal dimension thereof is such that the shutter portion 210 ′ attached by the hinge structure on the inlet side of the insertion hole portion 220 ′ has the insertion hole portion 2
When it is rotated to the rear side of 20 ', the locking projection 21
The length 1a 'is formed so as not to be caught on the inner surface of the insertion hole 220. The position of the end portion on the front surface side of the long hole 222a 'is such that the shutter portion 210' substantially closes the inlet side of the insertion hole portion 220 ', that is, the shutter portion 210'.
Is in a vertical state, the locking projection 21
This is where 1a 'is located. Therefore, the lower side of the shutter portion 210 'does not rotate forward from the vertical state.

Grooves 22 for supporting both end portions of the shaft portion 240 'are formed on both side surfaces of the upper portion of the insertion hole portion 220' on the inlet side.
6 ', 226' [see FIGS. 2 (C) and 2 (D)] are provided.

The three pairs of fixing elastic members 205N1 '(see FIG. 3) are inserted into the positioning through holes of the substrate (not shown) and the socket 2 is provided.
00 'is used when it is detachably fixed. The pair of fixing elastic members 205N1 'includes a base end portion 205N1a' and a base end portion 20N1a 'which are housed in the positioning through holes of the substrate (not shown) without any fluctuation.
5N1a 'is provided on the lower side of the pull-out prevention portion 205N1
b ′ and one b ′ are provided at a predetermined interval. The height dimension of the base end portion 205N1a 'is the same as the thickness dimension of the substrate. Removal prevention unit 205N1b '
Is formed in a shape having a slight bulge outside the base end 205N1a '.

Therefore, when the fixing elastic body 205N1 'is to be inserted into the positioning through hole of the substrate (not shown), the pair of slip-out preventing portions 205N1b' are first deformed inwardly and the positioning transparent member 205N1b 'is deformed. Pass through the hole. After that, when the slip-out prevention portion 205N1b ′ reaches the lower surface side of the substrate, the slip-out prevention portion 205N1b ′ forming a pair,
Return to the original state. As a result, the proximal end 205N1a '
The outer surface of the socket abuts the inner surface of the positioning through hole so that the socket 200 'does not wobble in the horizontal direction with respect to the substrate. At the same time, the removal prevention unit 205N1
b'prevents the socket 200 'from falling out of the substrate.

The first housing part 205M 'and the second housing part 205N' constituting such a housing part 205 'are as follows.

First, as a rough structure, the first housing portion 205M 'has a hole portion 220a' to which the shutter portion 210 'is attached. On the other hand, the second housing portion 205N 'has a hole portion 205N3' into which the first housing portion 205M 'is inserted. Then, the hole portion 220a 'of the first housing portion and the second housing portion 20
5N 'hole 205N3' and the inner side of the insertion hole 22
0'is configured.

Hereinafter, the first housing portion 205M 'and the second housing portion 205N' will be described in detail.

As shown in FIG. 2, the first housing portion 205M 'is a substantially rectangular body in a front view and a plan view, and has the hole 220a'. The first housing portion 205M 'has a rear side opening 205M1' formed in the upper portion on the rear side of the hole 220a 'by removing the rear upper surface side portion of the insertion hole 220'. Back side opening 205
M1 'has elastic body portion 230A' passed through shaft portion 240 'and fitted into shutter portion 210' at a predetermined position, and the first housing portion is passed through this rear side opening portion 205M1 '. The opening is formed to a size that can be inserted inside the hole 220a 'of 205M'.

The first housing portion 205M 'is provided on the rear side thereof with the front side portion 250a' of the element chamber portion 250 '.
Is formed.

Hole portion 22 of the first housing portion 205M '
0a 'also includes a groove 226a' which is a main part of the grooves 226 ', 226'. The groove 226a 'is formed in a substantially horizontal U shape. This back side curved portion 22
6a1 'is formed on the inlet side of the hole 220a'. The remaining portions of the grooves 226 'and 226' are convex portions 205N2 'to be described later of the second housing portion 205N'.
Are formed on the groove 226a 'by being fitted into the inner portion of the hole 220a'.

On the upper side of the grooves 226 'and 226', which are slightly behind (the inside of the hole 220a '), the elastic member 230 is provided.
The shutter portion 21 is the one in which A'is passed through the shaft portion 240 '.
Inserted into the predetermined position of 0 ', the groove 226', 22
When set to 6 ', a convex portion 205M2' for locking one side (upper side) of the elastic body portion 230A 'is provided so as to protrude downward.

The long hole 222a 'is also formed in the first housing portion 20.
Included in 5M '. However, the first housing part 2
The long hole 222a 'included in 05M' is formed so as to penetrate therethrough. On the other hand, the slot of the slot 222a 'does not reach the second housing portion 205N', and the slot 222N '
The bottom surface of a'is formed by the inner surface of the second housing portion 205N '.

A positioning hole 223 'is also included in the first housing portion 205M'. However, the positioning hole 22 included in the first housing portion 205M '
The 3'portion is formed so as to penetrate therethrough. The portion of the bottom surface of the positioning hole portion 223 ', excluding the portion that is partially a through hole, is the second housing portion 205N'.
Is formed by the inner surface of the.

On the outer surface portion of the first housing portion 205M ', the upper portion of the center and both end portions of the lower surface have protruding portions 205.
M3 ', 205M4' and 205M4 'are provided respectively. These protrusions 205M3 ', 205M4', 2
05M4 ′ is for positioning and preventing stress on the optical element 290 ′ provided on the back side when the first housing portion 205M ′ is set on the inner surface of the second housing portion 205N ′ described later. belongs to.

A wedge-shaped protrusion 205 is formed on the outer surface portion of the first housing portion 205M ', which is the central portion on the inner side of both side surfaces.
M5 'and 205M5' are provided. The wedge-shaped protrusions 205M5 'and 205M5' are provided with the first housing portion 205M 'after the first housing portion 205M' is set on the inner surface of the second housing portion 205N 'which will be described later.
This is to prevent it from coming off to the front side.

As shown in FIG. 1, the second housing portion 205N 'is a substantially rectangular parallelepiped, and on the lower front side thereof,
A hole 205N3 'is formed. The second housing portion 205N 'has a pair of protrusions 205N2' protruding from the front end of the hole 205N3 '.

As described above, the convex portion 205N2 'includes the first housing portion 205M' and the second housing portion 20.
Shaft part 2 so that when it is combined with 5N ', groove 226' for supporting both end parts of shaft part 240 'is completed.
This is for restricting the back side of both end portions of 40 '.

The hole 205N3 'has an upper center and
The protrusions 205M3 'and 20 are provided on both ends of the lower portion, respectively.
Groove 205N3 that fits with 5M4 ', 205M4'
a ', 205N3b', 205N3b 'are formed.

The shallow groove 205N3c 'and the shallow groove 205N are provided on both side surfaces of the hole 205N3', respectively.
Grooveless portion 2 on the back side of 3c '(the back side of the hole 205N3')
05N3d 'and a through hole portion 205N3e' on the inner side of the grooveless portion 205N3d 'are formed.

The shallow groove portion 205N3c 'and the grooveless portion 2
The wedge-shaped protrusion 2 is provided on a series of routes with 05N3d '.
05M5 'passes when the first housing part 205M' is set with respect to the second housing part 205N ', and finally fits into the through hole part 205N3e', and the second housing part 205N ' The fixing of the first housing part 205M 'to the' is completed.

At this time, the lateral direction of the through hole 205N3e 'is closed by the wedge-shaped protrusion 205M5', while the rearward direction of the through hole 205N3e '(the hole 205N).
3'is a rear surface direction), and a slit-like portion 205N3 described later.
h ′ [see FIG. 1 (D)], it is closed by both end portions of the outer surface back portion of the first housing portion 205M ′.

In the hole 205N3 ', on the inner surface thereof,
Element chamber portion 25 provided in the first housing portion 205M '
0'front side part 250a 'and element chamber part 25 which makes a pair
A 0'back side 250b 'is formed.

In the hole 205N3 ', the bottom side of the optical element 290' is pulled out and the optical element 29N 'is pulled out.
A through hole 205N3f 'is formed as an insertion route for setting 0'in a predetermined position.

On the outer surface side of the second housing portion 205N ', the fixing through hole 280' and the three pairs of fixing elastic members 205N1 'are formed, and in addition to the structure shown in FIG.
A groove 205N3g ', which is a portion that cannot be explained in the explanation of the socket 200' by (F), is provided at the rear end side of both side surfaces. The groove 205N3g 'is formed in the through hole portion 20.
It is provided continuously with 5N3e '. This groove 205N
When 3g ′ is viewed from the rear surface of the second housing portion 205N ′, the through hole portion 205N3e ′ is provided, so that the slit-like portion 205 in the hole 205N3 ′ direction is formed.
N3h 'is formed.

As described above, the slit-shaped portion 205N3h 'is configured such that both end portions of the outer surface back portion of the first housing portion 205M' are exposed. Thus, even if the first housing part 205M 'is to be removed after setting the first housing part 205M' to the second housing part 205N ', the exposed part can be easily pushed to remove the first housing part 205M'. The part 205M 'can be removed.

Therefore, for example, even if the optical element 290 'fails to function for some reason after the socket 200' is installed in a predetermined device, the optical element 290 'can be replaced by pressing the exposed portion. Easy to do.

The shutter portion 210 'is provided with a recess 214A' so that the shaft portion 240 'can be set by pressing it from the back side like the shutter portion 210' shown in FIG. 3B.

Therefore, the shutter portion 210 'is shown in FIG.
As shown in (B) and (D), the insertion hole 22
It is possible to fit into the entrance of 0 '(hole 220a') (Of course it is possible to fit from the entrance to the back side)
The front view is formed into a substantially hexagonal shape. This front view shape is based on the shape of the inlet opening surface of the insertion hole 220 ′ (hole 220 a ′), and the plug guide recesses 221 ′ and 221 ′.
With the shape removed from the
It has a shape in which a'and 211a 'are projected.

On the front side of the shutter portion 210 ′, the positioning convex portion 151 above the engaging convex portion 150 of the plug 100.
A positioning recess 212 'into which b is fitted is formed.

A concave portion 21 having a substantially C-shape in a side view for holding the shaft portion 240 'is provided on the upper portion of the rear side of the shutter portion 210'.
A protrusion 213A 'having 4A' is provided. An elastic body portion 230, which will be described later, is provided at the center of the protruding portion 213A '.
Recess 215 'into which A'main body 230Aa' is inserted
[See FIG. 3D] is formed.

The elastic body portion 230A 'is a torsion coil spring, as shown in FIG. Elastic body part 23
0A ′ is a coil-shaped spring body portion 230Aa ′, a rod-shaped extension portion 230Ab ′ extending from one end of the spring body portion 230Aa ′, and a rod-shaped extension portion extending from the other end of the spring body portion 230Aa ′. It has an installation part 230Ac '. A shaft portion 240 'is fitted into the through hole 230Aa1' of the spring body portion 230Aa '.

The rod-shaped extending portion 230Ab 'has an insertion hole portion 22.
0 '(hole 220a') surface (correctly, the convex portion 205M
2 '), which is a portion on the side in contact with the rear side of the shutter portion 210' and which is shorter than the rod-shaped extending portion 230Ac '. Bar-shaped extension 2
The angle between 30b 'and the rod-shaped extending portion 230c' is at least 90 ° or more so as to apply a biasing force to the shutter portion 210 '.

The shaft portion 240 'is a cylindrical rod, as shown in FIG. The length dimension of the shaft portion 240 'is larger than the lateral dimension of the shutter portion 210', and the groove 22 provided on both side surfaces of the insertion hole portion 220 '.
It is about the dimension between both ends of 6 ', 226'. Shaft 240 '
Has a size such that it can fit into the recess 214A 'of the shutter portion 210'.

Next, a method of assembling the socket 200 'will be described with reference to FIG.

First, as shown in FIG. 3A, the shaft portion 240 'is inserted into the through hole 230Aa1' of the elastic body portion 230A '.
Fit in. This state is set on the shutter section 210 'as shown in FIG. At this time, the spring body 230Aa 'of the elastic body 230A' is not
15 ', while the shaft 240' has a recess 214
Fit in A '.

In this state, as shown in FIG. 3C, the rear side opening 2 of the first housing portion 205M 'is formed.
Insert from 05M1 'into the hole 220a'. On this occasion,
The engaging convex portion 211a 'of the shutter portion 210' is fitted into the front side of the elongated hole 222a 'of the first housing portion 205M' and the upper side of the shutter portion 210 'is raised.

Then, as shown in FIG. 3 (D), both ends of the shaft portion 240 ′ have the first housing portion 20.
It is fitted in the groove 226a 'of 5M', and the bar-shaped extending portion 230Ab 'of the elastic body portion 230A' is projected by the convex portion 205M.
It contacts the base end side of 2 '. In this state, the shutter portion 210 'is vertically arranged while being fitted into the long holes 222a', 222a 'on the inlet side of the hole portion 220a' of the first housing portion 205M ', and the rear surface of the shutter portion 210'. Is urged toward the inlet side of the hole 220a 'by contacting the rod-shaped extending portion 230Ac' of the elastic body 230A '. Therefore, the shutter portion 210 'is held by the first housing portion 205M'.

Here, the first housing portion 205M 'shown in FIG. 3 (E) is replaced with the second housing portion 205.
In order to set the optical element 290 'in the element chamber section 250' which is formed when it is set to N ', the second housing section 205
The optical element 290 'is fitted into the rear side portion 250b' from the N'through hole 205N3f '. At this time, the second housing portion 205N 'is laid down on its back side.

Hole portion 20 of the second housing portion 205N '
When the first housing portion 205M 'in which the shutter portion 210' and the like are set is inserted into the 5N3 ', as shown in FIG.
The back side of 40 'is fitted in a predetermined position of the groove 226a' so as to regulate the back side. On the other hand, the wedge-shaped protrusions 205M5 ', 20
5M5 '(see FIG. 2) rides over the grooveless portion 205N3d' [see FIG. 1 (C)] and fits into the through hole portion 205N3e ', and the first housing portion 205M' becomes the second housing portion 205N '. Fixed to. As a result, the socket 200 'is completed.

In the completed socket 200 ', only the lower end portion of the unmolded portion 290a' of the lead pin of the optical element 290 'is in a free state, but the upper portion thereof is The element chamber portion 250 'is sandwiched and fixed by a front side portion 250a' and a rear side portion 250b '. Therefore, no stress is applied to the element (chip) of the optical element 290 'when connecting and fixing the socket 200' to a substrate (not shown).

Next, the mechanical operation of the socket 200 'will be described with reference to FIG.
The description will be made with reference to the above. The socket 200 ′ has a shutter portion 210 ′ when the plug 100 is not inserted.
Is urged toward the entrance side of the insertion hole 220 'by the elastic body 230A', so that the entrance side of the insertion hole 220 'is substantially closed by the shutter 210' (FIG. 5).
(A) state].

As shown in FIG. 5B, the plug 10
When 0 is started to be inserted into the insertion hole 220 ′ with a force equal to or greater than the biasing force, the front surface (front surface) of the shutter portion 210 ′ is pushed by the plug tip portion 159 of the plug 100, and the shaft is pushed. The shutter section 21 is rotated about the section 240 '.
As for 0 ', the tip side thereof enters into the inside of the insertion hole 220'.

When the plug 100 is further pushed into the insertion hole 220 ', the lower end of the engaging projection main body 151 of the plug 100 is brought into sliding contact with the bottom surface of the insertion hole 220' on the inlet side. The upper end of the engaging projection main body 151 of the plug 100 comes into contact with the front surface of the shutter 210 '[state of FIG. 5 (C)]. The shutter section 21 up to this point
The rotation of 0'and the start of the sliding contact of the lower end of the engaging convex portion main body 151 to the inlet side bottom surface of the insertion hole 220 'are made smooth by the tapers 151t, 159t of the plug 100. .

When the plug 100 is further pushed into the insertion hole 220 ', the shutter 210' is stored horizontally in the space 225 of the insertion hole 220 'as shown in FIG. 5D. . Further, when the plug 100 is pushed into the insertion hole 220 'and pressed into the insertion hole 220', and the insertion convex portion main body 151 is completely inserted into the insertion hole 220 ', the state shown in FIG. Become.

That is, the tip side of the plug tip 159 is
It is held by the plug tip holding portion 229 '. The front end surface of the plug front end portion 159 is arranged at a predetermined minute distance in front of the front surface of the optical element 290 '(not shown in FIG. 5, so see FIG. 3E). Further, the engaging convex portion main body 151 is held by the surfaces from both side surfaces to the bottom surface of the insertion hole portion 220 'and the front surface of the shutter portion 210' (note that the biasing force is also added). Becomes

Although not shown in FIG. 5,
Of the positioning protrusions 151b and 151b (see FIG. 4),
The lower positioning protrusion 151b has a positioning through hole 22.
3 ', while the upper positioning projection 1 is inserted
51b is a positioning recess 21 for the shutter 210 '.
2'is inserted. With these, the plug 100
Is held by a relatively close holding force in the case of a general EIAJ standard socket.

On the contrary, when the plug 100 is pulled out from the insertion hole 220 ', the state of FIG. 5 is simply reversed. The shutter 210 'automatically returns to the entrance side of the insertion hole 220' by the urging force of the elastic body 230A '.

The socket 2 configured and operating in this way
Most of 00 'is covered by the cabinet of the apparatus to which this socket 200' is attached, and only the insertion hole 220 'is exposed on the front side. Therefore, the main entrance route of dust or the like that causes the front side of the optical element 290 'of the socket 200' to be polluted is only the entrance side of the insertion hole 220 ', and the entrance side should prevent the entrance. The shutter portion 210 'provided provides protection.

In the socket 200 'of the optical connector according to the first embodiment of the present invention, the shutter portion 21
A socket 200A in which the structure of 0'and the method of inserting the shaft portion 240 'are minorly changed will be described with reference to FIGS. 6 and 7. 6A and 6B are views showing a minor change product of the socket of the optical connector according to the first embodiment of the present invention. FIG. 6A is a plan view, FIG. 6B is a front view, and FIG. FIG. 7 is a partially transparent explanatory view from a side view, and FIG. 7 is a diagram showing a shutter portion and an elastic body portion used for a minor change product of the socket of the optical connector according to the first embodiment of the present invention. 3A is a side view of the shutter portion, FIG. 3B is a rear view of the shutter portion, FIG. 3C is a side view of the elastic body portion, and FIG. 3D is a front view of the elastic body portion. The same numbers are assigned to the parts having the same functions as the socket 200 '.

Shutter portion 210A of socket 200A
The major structural difference is that the shaft portion 240 is press-fitted to the back side instead of being inserted from the side during assembly. The shutter section 210A is the shutter section 21.
Like 0 ', it is formed in a substantially hexagonal shape in a front view. From the shape of the entrance opening surface of the insertion hole 220,
The shape is obtained by removing the shape portions of the plug guide recesses 221 and 221 and projecting the locking projections 211a and 211a.

On the front side of the shutter portion 210A, the positioning convex portion 151 above the engaging convex portion 150 of the plug 100.
A positioning recess 212A into which b is fitted is formed. On the upper side of the positioning concave portion 212A, a concave portion 216A for attracting the positioning convex portion 151b is provided.

A concave portion 214 having a substantially C-shape in side view for holding the shaft portion 240 is formed on the upper portion of the shutter portion 210A on the back side.
A protrusion 213A having A is provided. Protrusion 2
A recessed portion 215A into which a main body portion 230Aa of an elastic body portion 230A and a rod-shaped extending portion 230Ab, which will be described later, are inserted is formed in a central portion of 13A.

The elastic body portion 230A is a torsion coil spring. The elastic body portion 230A is a coil-shaped spring body portion 23.
0Aa, and bar-shaped extending portions 230Ab and 230Ab extending from one end and the other end of the spring body portion 230Aa. The angle between the rod-shaped extending portions 230Ab and 230Ab is at least 90 ° or more so as to apply a biasing force to the shutter portion 210A.

The housing 205 of the socket 200A
In A, in place of the through hole 226 provided in the housing 205 of the socket 200, the shaft portion 240 can be inserted from the upper side, and a long hole 228A longer than the width dimension of the insertion hole portion 220 is provided. ing. A state in which the elastic body portion 230A is bent (a state in which the two bar-shaped extending portions 230Ab are bent until they are parallel to each other) is provided at the center of the elongated hole 228A.
In order to enable insertion inside the insertion hole 220, the long hole 2
28A is cut out to provide holes 228A1 and 228A1.

Such a socket 200A is assembled as follows. First, the elastic body portion 230A is inserted in the center of the shaft portion 240. While the shaft portion 240 in this state is in a state where the elastic body portion 230A is bent, the elongated hole 228 is formed.
A and the holes 228A1 and 228A1. With respect to the elastic body portion 230A in this state, the shutter portion 21
With the recess 215A of 0A corresponding thereto, the recess 214A having a substantially C-shape in side view of the shutter 210A is pressed against the shaft 240 to complete the setting of the shutter 210A.
After that, when the optical element 290 is installed in the element chamber section 250 of the housing section 205A, the assembly of the socket 200A is completed.

Since the mechanical operation of the socket 200A is basically the same as the mechanical operation of the socket 200 ', the description thereof will be omitted.

In the socket 200 'of the optical connector according to the first embodiment of the present invention, the plug tip holding portion 22 is provided.
9'is not projected to the insertion hole 220 'side.
However, as shown in FIG. 8, the plug tip holding portion 22 does not come into contact with the shutter portion 210 'due to the rotation thereof.
A circular convex portion 229't is extended to 9 ', and a protruding portion 229' is formed.
It may be T. FIG. 8 is a view for explaining a state in which a circular convex portion is extended to a projecting portion on the plug tip holding portion of the socket of the optical connector according to the first embodiment of the present invention, and a projecting portion of EIAJ standard. It is a side view schematic explanatory drawing. The longer the depth of the protrusion 229T 'is, the more the holding force of the plug 100 can be increased.

By the way, in FIG. 8, the situation of the protruding portion 900 of the EIAJ standard is shown by a broken line. As described above, when the plug 100 is a square plug conforming to the EIAJ standard, the protrusion 900 having a depth dimension corresponding to the EIAJ standard cannot be provided in a structure such as the socket 200 ′ (or 200A). As mentioned above, EI
As in the case of the AJ standard protruding portion 900, the longer the depth of the protruding portion is, the more the holding force of the plug 100 can be increased. Therefore, to prevent the plug 100 from coming off, E
It is preferable to provide the IAJ standard protrusion 900 on the socket.

Next, with respect to the socket 200 'of the optical connector according to the first embodiment of the present invention, a switch as a means for extending the life of the optical element and a means for reducing the power consumption (this switch is as follows: When the shutter part is operated by this shutter part when the shutter part moves from the inlet side of the insertion hole part to a predetermined position, and one side of the switch is also used as an elastic body. As for the socket of the optical connector according to the second embodiment of the present invention, only the difference will be described with reference to FIG. FIG. 9 is a schematic side view for explaining the socket of the optical connector according to the second embodiment of the present invention.

In the optical connector socket 200B according to the second embodiment of the present invention, the shape and the like of the elastic body portion 230A 'of the optical connector socket 200' according to the first embodiment of the present invention are changed. is doing. Specifically, the elastic body portion 230 'of the socket 200B is the elastic body portion 230'.
One end of the socket is bent and formed, and is drawn out to the outside of the socket 200B. The other end of the elastic body 230 'is provided with a switch 400' newly provided in the socket 200B.
Of the fixed section 410 '. That is, the elastic body portion 230 ′ functions as the movable segment portion 420 of the switch 400 in the switch 400 ′. Therefore, the elastic body portion 230 'is made of metal having good conductivity.

The socket 200B basically having the same structure as the socket 200 'except for the above is provided with the shutter portion 210 provided on the inlet side of the insertion hole portion 220 when the plug 100 is inserted into the insertion hole portion 220. Is rotated to enter the insertion hole 220. Therefore, the switch 400 '
Is turned on when the shutter section 210 is brought into contact. On the contrary, from the insertion hole 220 to the plug 10
When 0 is pulled out, the shutter portion 210 becomes the elastic body portion 2.
Since it is urged toward the entrance side of the insertion hole 220 by 30 ', it automatically returns. Therefore, the switch 400 '
Turns off.

As described above, in the socket 200B of the optical connector according to the second embodiment of the present invention, the switch 400 'is off unless the plug 100 is connected to the socket 200B. Element 290
It is possible to reduce unnecessary power supply to the optical element 2.
The life of 90 can also be extended. Also, the switch 40
Since the plug 100 does not come into direct contact with 0 ', even if the switch 400' is provided, there is no possibility that the plug 100 will be damaged. Further, since the elastic body portion 230 'is also used on one side of the switch 400', the number of parts and the cost can be reduced.

The elastic body portion 230 in the socket 200 'or the like of the optical connector according to the first and second embodiments of the present invention.
A ′ and the like may not be a torsion coil spring, but may be a plate spring or the like that exhibits the same function.

As described above, in the socket 200 'of the optical connector according to the first embodiment of the present invention, after the shutter portion 210' is stored in the space 225 ',
It is preferable to hold the side surface of the plug 100 that has been connected.

Next, a socket using a magnet instead of the elastic member will be described as a socket of an optical connector according to a third embodiment of the present invention with reference to FIG. FIG. 10 is a sectional view showing a socket of an optical connector according to a third embodiment of the present invention.

An optical connector socket 200G according to the third embodiment of the present invention is substantially the same as the optical connector socket 200 'according to the first embodiment of the present invention, and is a socket 200'. Elastic body part 23 used in
Remove 0A 'and replace magnets 230G1, 23 instead.
0G2 was provided at two locations described below.

The magnet 230G1 is embedded on the back side of the shutter 210G. The shutter unit 210G
Is substantially the same as the shutter portion 210 'of the socket 200', except that the magnet 230G1 is embedded and is not provided because a concave portion for setting the elastic body portion is unnecessary.

The magnet 230G2 has a plug (not shown) having an insertion hole 220G (the insertion hole 22 of the socket 200 ').
0 '] when inserted into) space 225
A housing part 205G (similar to the housing part 205 'of the socket 200', but substantially similar to the first housing part) facing the shutter part 210G stored in G (similar to the space 225 'of the socket 200'). Second
The boundary with the housing part of is not shown. ) Is embedded so as to face the magnet 230G1.

The magnet 23 provided on the shutter portion 210G
0G1 and the magnet 23 provided in the housing portion 205G
It should be provided so as to repel 0G2. Therefore, for example, the south pole (or north pole) of the magnet 230G1 is provided toward the back side of the shutter portion 210G, and the magnet 230
The S pole (or N pole) of G2 may be provided so as to face downward on the upper surface of the insertion hole 220G of the housing 205G.

The magnet 230G1 is provided on the relatively upper side of the shutter portion 210G, that is, near the shaft portion 240G (similar to the shaft portion 240 'of the socket 200'). In this way, when the shutter 210G is provided on the upper side, the insertion hole 2
Even at the entrance of 20G (that is, when the magnet 230G1 is farthest from the magnet 230G2), the magnet 230G1 provided in the shutter portion 210G and the magnet 230G2 provided in the housing portion 205G are relatively close to each other and This is because they oppose each other so as to repel each other. That is, the urging force that urges the shutter portion 210G toward the entrance side of the insertion hole portion 220G can be increased over the entire movement range of the shutter portion 210G.

Since the assembly of the socket 200G is substantially the same as that of the socket 200 ', the description thereof will be omitted.

The mechanical operation of the socket 200G is substantially the same as that of the socket 200 '. The only difference is whether the urging force is due to the elastic body or the repulsive force of the magnet.

By the way, for example, in the case of the optical connector socket 200 'according to the first embodiment of the present invention,
Although it can be closed by the shutter portion 210 ', the plug guide recesses 221' and 221 'are not closed. Therefore, when the switch 200 'as described in the socket 200B of the optical connector according to the second embodiment of the present invention is not provided in the socket 200', the power of the device in which the socket 200 'is installed is turned on. , The optical element 290 'is always in operation. Therefore, even if the socket 200 'is located on the front surface of the device or other than the front surface, if it is installed at a position where it can be easily seen by the user, the optical element 2 is not inserted when the plug 100 is not inserted.
Although a little light from 90 'may leak from the plug guide recesses 221' and 221 'to the eyes of the user.

Therefore, a socket having a structure close to that of the socket 200 'and having a high blocking property for solving the problem of light leakage without providing a switch such as the switch 400' is provided in the fourth embodiment of the present invention. The socket of the optical connector according to the embodiment will be described with reference to FIGS. 11 to 14.

11A and 11B are views showing a socket of an optical connector according to a fourth embodiment of the present invention, wherein FIG. 11A is a front view, FIG. 11B is a side view, and FIG. ) Is a cross-sectional view, FIG. 12 is a view showing a second housing part used in the socket of the optical connector according to the fourth embodiment of the present invention, and FIG. B) is a front view, FIG. 13C is a sectional view, and FIG. 13 is a view showing a first housing portion used for a socket of an optical connector according to a fourth embodiment of the present invention. (A) is a front view, (B) is a side view, (C) is a rear view, (D) is a sectional view, and FIG. 14 is an optical connector according to a fourth embodiment of the present invention. FIGS. 3A and 3B are views showing a shutter portion used in the socket of FIG. 1A, FIG. 1A is a front view, FIG. 2B is a side view, FIG. It is a bottom view.

The optical connector socket 200F according to the fourth embodiment of the present invention has a structure similar to that of the optical connector socket 200 'according to the first embodiment of the present invention. The differences will be described below.

(1) The shutter portion 210F engages with the front side portion of the plug guide recesses 221F and 221F (the plug guide recesses 221 'and 221' of the socket 200 'are modified as described later). A protruding portion (a closing convex portion 210FF1 described later) is provided. (2) The structure of the insertion hole 220F of the housing 205F in the range in which the closing projection 210FF1 rotates is changed. (3) The socket 200F has the first housing portion 205.
It has a housing part 205F consisting of an FM and a second housing part 205FN, but the first housing part 205
The position where the FM and the second housing portion 205FN are separated is different from that in the socket 200 '.

The above-mentioned main differences will be described in more detail below. The shaft portion 240F, the elastic body portion 230F, and the optical element 290F are the shaft portion 240 'of the socket 200', the elastic body portion 230A ', and the optical element 290'.
Is similar to.

The shutter section 210F has a socket 200 '.
On the rear surface of the shutter portion 210 'of
F is projectingly provided so as to avoid the region where the elastic body portion 230F is provided. The closing convex portion 210FF1 is extended from the side surface of the rear convex portion 210FF. The closing convex portion 210FF1 is engaged with the front surface side portion of the plug guide concave portion 221F to enhance the closing property and prevent light leakage. In addition, the engaging convex portion 211Fa is the socket 2
While the engaging projection 211a 'of 00' has a hemispherical shape, it has a triangular shape when viewed from the front, but has the same function.

The housing part 205FM is basically composed of
It is similar to the housing portion 205 'of the socket 200'. However, because the separation position of the housing portion 205FM is changed to the front side as compared with the case of the socket 200 ', in addition to the above, the element chamber portion 250F is replaced by the socket 20F.
Unlike the 0'element chamber 250 ', the socket 200
It is formed in the same manner as the element room portion 250.

The first housing portion 205FM is similar to the one obtained by cutting the rear side of the first housing portion 205M 'of the socket 200'. Wedge-shaped protrusions 205FM5, 205FM5 similar to the wedge-shaped protrusions 205M5 ', 205M5' of the socket 200 'are provided at the rear end of the side surface of the first housing portion 205FM.

The first housing portion 205FM has a plug guide front concave portion 221F1 which is a front portion of the plug guide concave portion 221F therein. However,
The front side portion of the plug guide front concave portion 221F1 is the same as the plug guide concave portion 221 'of the socket 200', but the upper half of the portion from the vicinity of the center to the rear side is the plug guide concave portion 221 '. It is notched to the same depth as the deepest portion and is provided continuously with the closing convex portion 210FF1 passing concave portion 221F11 extended on the upper side thereof.

The second housing portion 205FN has wedge-shaped protrusions 2 of the first housing portion 205FM on both side surfaces thereof.
Through hole 205 for fitting 05FM5, 205FM5
FN3e is provided. Second housing part 205
The FN has a plug guide rear recess 221F2, which is a rear part of the plug guide recess 221F, formed in the inner portion of the hole 205FN3. The closing convex portion 210FF1 passing concave portion 221F11 is included so as to include a region of the plug guide rear concave portion 221F2 extending to the upper side of the tip end and including the closing convex portion 210FF1 of the shutter 210F. And a convex portion 210FF1 for passage and a concave portion 221F12 for passage are formed.

The hole portion 20 of the second housing portion 205FN
Plug tip holding portion 22 provided on the back side of the 5FN3
9F is a plug tip holding portion 229 'of the socket 200'.
The length is longer than the above to improve the holding force when the plug 100 is inserted.
A notch 229F1 is provided on the upper side of the front surface so that F does not contact.

Since the method of assembling the socket 200F having the above-described structure is basically the same as that of the socket 200 ', the description thereof will be omitted.

The mechanical operation of the socket 200F is basically similar to that of the socket 200 '.
The closing convex portion 210FF1 of F is the closing convex portion 210FF1.
Passing concave portion 221F11 and closing convex portion 210FF1
The front recess 221F1 for the plug guide of the first housing portion 205FM passes through the area of the passage recess 221F12.
Except that it is fitted in the front side portion of the socket 200F and the closing property of the socket 200F is enhanced.

Therefore, if the structure of the socket 200F is adopted, even if the structure is similar to that of the socket 200 '(the shutter part rotates the insertion hole part),
Since it is possible to prevent light leakage without providing a switch such as the switch 400 ', the socket for the optical connector can be installed without any problem even on the front surface of the device or a position other than the front surface, which is easily visible to the user. it can. Further, if the structure of the socket 200F is adopted, it is possible to prevent dust and the like from entering more reliably than the socket 200 'and the like.

By the way, the sockets 200, 200 'of the optical connector described above are generally the socket 2
It is often installed on the upper surface of the substrate of the device in which 00, 200 ', etc. However, for example, if the substrate is provided on the upper side of the device, the socket 20
0, 200 ', etc. may be installed on the lower surface of the substrate. Even if the sockets 200, 200 'and the like are installed on the lower surface of the substrate as described above, there is no particular problem in terms of function.
However, depending on the device, the optical connector sockets 200, 2
The orientation of 00 ', etc. will be different. That is, depending on the device, not only the shutter portions 210, 200 ', etc., but also the insertion hole portions 220, 220', etc. on the back side thereof are turned upside down. Therefore, the user of the device can use the optical connector sockets 200, 2
If you insert the plug 100 in the wrong direction,
You may get lost.

Therefore, in order to eliminate the fear, when the socket of the optical connector is installed on the lower surface of the substrate, the sockets 200, 200 'of the optical connector and the like are installed on the upper surface of the substrate. The socket of the optical connector having the same state of the insertion hole on the back side will be described as the socket of the optical connector according to the fifth embodiment of the present invention with reference to FIG. FIG. 15 shows the fifth aspect of the present invention.
FIG. 6A is a diagram showing a socket of an optical connector according to the embodiment of the present invention, wherein FIG. 7A is a side view, FIG. 7B is a front view, FIG. A rear view and the same figure (E) are bottom views.

The optical connector socket 200D according to the fifth embodiment of the present invention basically comprises a shutter portion 210 'of the optical connector socket 200' according to the first embodiment of the present invention, an elastic body. It has a state in which the portion 230 ′, the shaft portion 240 ′, and the insertion hole portion 220 ′ are arranged upside down. The shutter portion 210 D and the elastic body portion 230, respectively.
D, the shaft portion 240D and the insertion hole portion 220D.

The shutter portion 210D and the elastic body portion 23
0D and the shaft portion 240D may be structurally the same as the shutter portion 210 ′, the elastic body portion 230 ′, and the shaft portion 240 ′ of the socket 200 ′ even if they are arranged upside down. However, the shutter portion 210D has a convex portion 210DD on its rear surface.
Is different from the shutter section 210 '. This convex portion 210DD is a second housing portion 205D described later.
It is a portion that can come into contact with the bottom surface of the insertion hole portion 220D included in N, and is provided on both sides of the shutter portion 210D so as to avoid the elastic body portion 230D on the back side thereof. The convex portion 210DD functions to improve the holding force when the plug 100 is inserted.

Housing portion 205D of the socket 200D
Comprises a first housing part 205DM and a second housing part 205DN, which is substantially similar to the housing part 205 'of the socket 200'.

The first housing portion 205DM is substantially vertically symmetrical with the first housing portion 205M 'of the socket 200'. The second housing portion 205DN includes the housing portion 205D to the first housing portion 205DM.
The second part of the socket 200 'is removed because the
The housing portion 205N 'is substantially the same as the housing portion 205N'. In the socket 200D, the second housing portion 205DN
Back side part 250 of the element room part 250D provided in the
The position of Db is changed to the position of the back side portion 250b 'of the element chamber portion 250' provided in the second housing portion 205N 'of the socket 200', due to the upside down arrangement.

The plug tip holding portion 229D provided on the inner side of the insertion hole 220D is the socket 200 '.
Longer than the plug tip holding portion 229 'of the plug 1
While the holding force when inserting 00 is improved, the notch 229D1 is provided on the lower front side so that the shutter portion 210D does not come into contact with the above because it is made longer. The improvement between the plug tip holding portion 229D and the shutter portion 210D is as follows.
Needless to say, this is not necessarily the case in the socket 200D, because it is for improving the holding force when the plug 100 is inserted.

The socket 200D having such a configuration
Is installed on the lower surface of the substrate of the device, the socket 20
The shutters 210D and 210 'have the same rotation direction and the insertion holes 220D and 220' have the same arrangement as when 0'is installed on the upper surface of the same substrate. Therefore, the user of the device can insert the plug 10 into the sockets 200D, 200, 200 'of the optical connector.
The direction of inserting 0 can be fixed.

[0130]

As described above, according to the first aspect of the present invention.
An optical connector socket according to the above is a socket for an optical connector that is connected to a plug of an optical connector, the housing part having an insertion hole into which the plug is inserted, and the shaft part on the inlet side of the insertion hole. And a shutter portion for substantially closing the insertion hole portion, and an elastic body portion for urging the shutter portion toward the inlet side. There is a space for storing the shutter portion, and when the plug is inserted into the insertion hole portion, the shutter portion is pushed by the tip side of the plug to enter the inside of the insertion hole portion, and is stored in the space when the connection is completed. In the socket of the optical connector, the housing part has a first housing part having a hole part to which the shutter part is attached and a hole part into which the first housing part is inserted. And a second housing part that is provided with a second housing part, and an optical element is provided on the inner side of the insertion hole, and the optical element is provided in the element chamber part. The first housing portion and the second housing portion are sandwiched and fixed.

Therefore, in the case of the optical connector socket according to claim 1 of the present invention, the shutter portion as a means for preventing the intrusion of dust and the like is integrally opened and closed on the inlet side of the insertion hole portion. There is. Since the shutter portion is urged toward the inlet side of the insertion hole portion by the elastic body portion, the insertion hole portion is substantially closed when the plug is not inserted into the insertion hole portion. When the plug is inserted into the insertion hole portion, the shutter portion is stored in the insertion hole portion. Further, after this, when the plug is pulled out from the insertion hole portion, the shutter portion is basically automatically returned to the inlet side of the insertion hole portion by the elastic body portion.

Therefore, in the socket of the optical connector according to the first aspect of the present invention, it is possible to properly prevent the intrusion of dust and the like which deteriorates the reliability. In addition, there is no need to take out and insert a cap for preventing dust and the like, and there is no concern that the cap is lost and dust and the like are allowed to enter.

Further, the shutter portion is characterized by holding the side surface side of the plug in a state of being stored in the space. Therefore, in the case of such an optical connector socket, the shutter portion has a holding force for the plug after insertion, which becomes insufficient as compared with a general EIAJ standard socket due to the provision of the space. It is designed to supplement by holding the plug. Therefore, the socket of the optical connector according to claim 4 of the present invention is
It may have a holding force relatively close to that of a general EIAJ standard socket. Therefore, the holding performance of the plug can be relatively high and the reliability can be relatively high.

Further, in the case of the socket of the optical connector according to the first aspect of the present invention, it can be separated into the two housing parts of the first and the second. Since the insertion hole portion is formed by the hole portion of the first housing portion and the back side of the hole portion of the second housing portion, the insertion hole portion is formed on the back side of the hole portion of the first housing portion. Therefore, an opening formed by removing a portion corresponding to the inner side of the hole of the second housing portion is provided. Since the shutter portion is attached to the hole portion of the first housing portion, the opening provided on the back side can be used when assembling the socket of the optical connector, and the setting work of the shutter portion can be facilitated.
Further, it is not necessary to prepare a dedicated jig when assembling.

Therefore, in the case of the optical connector socket according to claim 1 of the present invention, the manufacturing efficiency can be improved by shortening the assembling time, and the dedicated jig cost is not required, so that the socket cost is reduced. Reduction can be achieved. Further, since the number of the molds to be taken was small because the mold in the case of using only one housing part was very complicated, in the case of the socket of the optical connector according to claim 1 of the present invention, the housing part was used. Since it was divided into two, the mold,
It can be more simplified and the number of pieces can be increased.
Considering the shortening of the molding time by this, the cost of the socket can be further reduced, and the mass productivity can be improved.

Further, the structure of the socket needs to be designed according to the state of the device side to which the socket is attached (differences in board thickness, attachment position, etc.), but the first housing part can also be shared. Since only the second housing portion side needs to be structurally modified, cost reduction can be achieved by sharing the mold. At this time, since the new die having a relatively simple second housing portion can shorten the manufacturing time, the cost can be reduced in this respect as well, and the mass production can be started quickly.

The socket of the optical connector according to claim 1 of the present invention has an element chamber portion in which an optical element is provided on the inner side of the insertion hole portion, and the optical element is the element chamber portion. In the above, it is characterized in that it is sandwiched and fixed by the first housing portion and the second housing portion.

In the case of the socket of the optical connector according to claim 1 of the present invention, the optical element is arranged in the element chamber portion.
The central axis of the plug of the optical connector to be inserted into the insertion hole and the optical axis of the optical element are accurately arranged so as to be sandwiched and fixed by the first housing portion and the second housing portion. Since they can be matched, the reliability of the socket can be increased. At the same time, the time for alignment can be omitted, so that the cost can be reduced. Further, since the optical element can be easily set between the housing portions by the holding, the cost can be reduced also in this respect. Since it is not necessary to use an adhesive for this setting, the cost can be reduced also in this respect.
Furthermore, since the optical element is securely fixed in the element chamber, when connecting and fixing the socket to the substrate,
Since the element of the optical element can be prevented from being stressed, the connection and fixing can be facilitated and the reliability of the socket can be improved.

Further, in the optical connector socket according to claim 2 of the present invention, the second housing portion is provided with:
A through hole for inserting the optical element is provided, and the element chamber portion is composed of the first housing portion and the second housing portion.

Therefore, in the case of the optical connector socket according to the present invention, the optical element is inserted through the second housing portion, and then the first housing portion is attached to the second housing portion. It becomes easy to set the optical element in the element room.

An optical connector socket according to a third aspect of the present invention is the optical connector socket according to the first aspect, wherein when the shutter portion moves from the entrance side of the insertion hole portion to a predetermined position, A switch operated by a shutter portion is provided, and one side of the switch uses the elastic body portion having good conductivity.

Therefore, in the case of the socket of the optical connector according to claim 3 of the present invention, the optical switch provided in the socket is provided by such a switch only when the plug is inserted into the insertion hole of the socket. Allow the element to work. Therefore, the life of the optical element can be extended and the reliability of the socket can be maintained high for a long time. Further, it is possible to reduce the power consumption of the device provided with such a socket. Further, since the switch is turned on / off by the shutter portion, there is no possibility that the plug will be damaged by the switch.

Further, in the case of the socket of the optical connector according to the third aspect of the present invention, the elastic body portion is also used on one side of the switch. Therefore, in the socket of the optical connector according to the seventh aspect of the present invention, the number of parts can be reduced and the cost can be reduced.

According to a fourth aspect of the present invention, in the socket of the optical connector, the shutter portion and the shutter when the plug is inserted into the insertion hole portion instead of the elastic body portion according to the first aspect. It may be characterized in that the magnet is provided so as to oppose to the portion and the portion opposed to the portion so as to repel it.

Therefore, in the case of the optical connector socket according to claim 4 of the present invention, the shutter portion is automatically returned to the entrance side of the insertion hole portion by the repulsive force of the magnet instead of the elastic body portion. it can.

The optical connector socket according to claim 5 of the present invention is the optical connector socket according to claim 1, 2, 3 or 4, which is a DVD, TV, STB (set top box), CD, MD, amplifier or the like. It is preferable that the digital audio device is provided in the digital audio device.

When the socket of the optical connector according to the first to fourth aspects of the present invention is provided in a digital audio device in particular, it exhibits the above-mentioned effects and functions beneficially.

[Brief description of drawings]

1A and 1B are views showing a second housing portion used for a socket of an optical connector according to a first embodiment of the present invention, in which FIG. 1A is a side view and FIG. 1B is a front view. The figure, the same figure (C) is sectional drawing, the same figure (D) is a rear view, and the same figure (E) is a bottom view.

2A and 2B are views showing a first housing portion used in the socket of the optical connector according to the first embodiment of the present invention, wherein FIG. 2A is a side view and FIG. 2B is a front view. Figure, Figure (C) is a sectional view, Figure (D) is a rear view, Figure (E) is a bottom view, and Figure (F) is an enlarged view of the portion indicated by J in Figure (E). is there.

FIG. 3 is an explanatory view for explaining a method of assembling the socket of the optical connector according to the first embodiment of the present invention, which is assembled in the direction of FIG. It shows the situation. However, FIG. 6E is a reference diagram showing a state in which no optical element is installed.

FIG. 4 is a view showing an EIAJ standard rectangular plug to be connected to a socket of an optical connector according to all the embodiments of the present invention, wherein FIG. 4A is a front view and FIG. It is a partially broken side view.

FIG. 5 is a side view schematic explanatory diagram illustrating a state when an EIAJ standard rectangular plug is inserted into the socket of the optical connector according to the first embodiment of the present invention. ) Is a state diagram immediately before insertion, FIGS. 8B to 8D are state diagrams in the middle of insertion, and FIG. 8E is a state diagram when the insertion is completed.

FIG. 6 is a diagram showing a minor change product of the socket of the optical connector according to the first embodiment of the present invention.
Is a plan view, (B) is a front view, and (C) is a partially transparent explanatory view in side view.

FIG. 7 is a diagram showing a shutter portion and an elastic body portion used for a minor change product of the socket of the optical connector according to the first embodiment of the present invention, and FIG. 7A is a side surface of the shutter portion. The figure, (B) is a rear view of the shutter section, (C) is a side view of the elastic body section, and (D) is a front view of the elastic section.

FIG. 8 is a view for explaining a state in which a circular convex portion is extended to a projecting portion on the plug tip holding portion of the socket of the optical connector according to the first embodiment of the present invention, and a projecting portion of EIAJ standard. It is a side view schematic explanatory drawing.

FIG. 9 is a schematic side view for explaining the socket of the optical connector according to the second embodiment of the present invention.

FIG. 10 is a sectional view showing a socket of an optical connector according to a third embodiment of the present invention.

11A and 11B are views showing a socket of an optical connector according to a fourth embodiment of the present invention, wherein FIG. 11A is a front view, FIG. 11B is a side view, and FIG. FIG.

12A and 12B are views showing a second housing portion used in the socket of the optical connector according to the fourth embodiment of the present invention, wherein FIG. 12A is a side view and FIG. FIG. 1C is a sectional view.

13A and 13B are views showing a first housing part used in a socket of an optical connector according to a fourth embodiment of the present invention, wherein FIG. 13A is a front view and FIG. The figure, the same figure (C) is a rear view, and the same figure (D) is a sectional view.

FIG. 14 is a diagram showing a shutter portion used in a socket of an optical connector according to a fourth embodiment of the present invention,
The same figure (A) is a front view, the same figure (B) is a side view, and the same figure (C).
Is a rear view and FIG. 3D is a bottom view.

15A and 15B are views showing a socket of an optical connector according to a fifth embodiment of the present invention, wherein FIG. 15A is a side view, FIG. 15B is a front view, and FIG. A sectional view, the same figure (D) is a rear view, and the same figure (E) is a bottom view.

[Explanation of symbols]

200 'optical connector socket 210 'Shutter section 220 'insertion hole 225 'space 230A 'elastic body

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Keiji Mine             1-43, Kitakuhoji Temple, Yao City, Osaka Prefecture             Inside Ciden Co., Ltd. F term (reference) 2H037 BA02 BA11 DA06 DA15 DA33                       DA35 DA39

Claims (5)

[Claims] 1. A socket for an optical connector, which is connected to a plug of an optical connector, comprising: a housing portion having an insertion hole portion into which the plug is inserted; and a hinge having a shaft portion on an inlet side of the insertion hole portion. The shutter is attached by a structure, and includes a shutter portion for substantially closing the insertion hole portion, and an elastic body portion for urging the shutter portion toward the inlet side, and the insertion hole portion includes the shutter portion. There is a space for storing, and when the plug part is inserted into the insertion hole part, the shutter part is
In a socket of an optical connector which is pressed by a tip end side of a plug to enter into an inside of an insertion hole and is stored in a space when connection is completed, the housing part is a first housing part having a hole part to which a shutter part is attached. A second housing part having a hole into which the first housing part is inserted, and an element chamber part in which an optical element is provided, on the inner side of the insertion hole part. The socket for an optical connector, wherein the optical element is sandwiched and fixed by the first housing portion and the second housing portion in the element chamber portion. 2. The second housing part is provided with a through hole for inserting the optical element, and the element chamber part is constituted by the first housing part and the second housing part. An optical connector socket according to claim 1, wherein the socket is an optical connector. 3. A switch that is operated by the shutter part when the shutter part moves from the entrance side of the insertion hole part to a predetermined position is provided, and one side of the switch has good conductivity. 3. The optical connector socket according to claim 1, wherein the elastic body portion is used. 4. A magnet is provided in the shutter portion and in a portion facing the shutter portion when the plug is inserted into the insertion hole portion, instead of the elastic body portion according to claim 1, 2. An optical connector socket, which is provided so as to face each other so as to repel. 5. The optical connector socket according to claim 1, 2, 3 or 4, wherein the socket is provided in a digital audio device such as a DVD, TV, STB (set top box), CD, MD, and amplifier. Optical connector socket.