JP3144805U - Optical connector socket - Google Patents

Abstract

A socket of an optical connector that simplifies a combination system and restricts a moving amount of a shutter within a predetermined range.
A socket connector of an optical connector is incorporated in a housing in which an opening for inserting a plug is formed, an optical element held in the housing, and an opening of the housing, and is supported rotatably in the housing. A shutter having a hinge shaft, and a spring member for maintaining the shutter in a closed state of the opening. Notches are formed so as to penetrate through portions adjacent to the respective side walls of the bottom plate of the housing, and the hinge shafts of the shutters are rotatably supported on the side walls corresponding to the notches. When each bearing part is formed and the shutter is mounted in the opening, each side wall expands elastically in the outward direction, so that both side walls are not supported until the hinge shaft is supported by the bearing part. The initial state has been recovered.
[Selection] Figure 5

Description

  The present invention relates to an optical connector socket, and more particularly to an optical connector socket that combines a shutter.

  In this type of optical connector socket, the plug of the optical connector is inserted into the plug insertion hole, thereby optically connecting the light receiving element or light emitting element held by the former to the plug, and transmitting optical signals. Although the intended purpose is achieved by making it possible, it has been a problem from the beginning how to close the plug insertion hole when the plug is not inserted, that is, when it is not used.

  If the plug insertion hole is left open when not in use, it is inevitable that dust or other foreign matter will enter the interior of the plug, and dirt will adhere to the optical elements held inside, resulting in a decrease in light transmission efficiency. In the end, the predetermined optical signal transmission may become impossible. Therefore, initially, a configuration was adopted in which the plug insertion hole was closed by inserting a protective cap. However, if the opening is closed with a protective cap when not in use, the above-mentioned fears are eliminated. However, when inserting the plug of the optical connector, the protective cap must naturally be removed, and after the plug is removed, the protective cap is removed. Must be reinserted. For this reason, there are problems such as troublesome operation and storage of the protective cap when the plug is inserted, and a configuration in which an openable / closable shutter is disposed at the opening of the plug insertion hole is used instead. .

The socket of the optical connector of the prior art, referring to Patent Document 1, prevents the intrusion of dust or the like combined with the housing having the opening for inserting the plug, the optical element held in the housing, and the opening. A shutter as means, a spring member for maintaining the shutter in a closed state of the opening, and a positioning plate for holding the shutter and the spring member in the housing are included. Hinge shafts that are rotatably supported by the housing are formed at both ends of the shutter, and the housing has both side walls formed on both sides of the opening, and the hinge shafts can be freely rotated at the tops of both side walls. The bearing portions for supporting the bearing portions are formed to be recessed, and the upper portions of the respective bearing portions are open. When attached, the hinge shaft of the shutter is supported by the bearing portion of the housing. Finally, the positioning plate is attached to the housing, and the shutter and the spring member are positioned on the bearing portion of the housing by the positioning plate.
Chinese Utility Model No. 2667512 Specification

  The socket of the optical connector posted in Patent Document 1 has a problem that the shutter is combined with the housing so as to be stabilized by the positioning plate, the number of parts is increased, the combination method is complicated, and the production efficiency is reduced. there were. Also, although the shutter hinge shaft is supported rotatably on the bearing part of the housing, there is no structure to restrict the movement in the left-right direction, so the shutter moves in the left-right direction during the process of rotating the shutter. Therefore, the use of the optical connector socket may be affected. In view of the above-mentioned drawbacks, it is necessary to develop a new type of optical connector socket.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide an optical connector socket in which the combination method is simplified and the amount of movement of the shutter is limited within a predetermined range.

  A socket connector of an optical connector according to claim 1 of the present invention includes a tip wall, a top plate, a bottom plate, and both side walls connected to be orthogonal to the tip wall, and the top plate, the bottom plate, and both sides. An opening for inserting the plug is formed by the wall, and a housing in which an insertion port for guiding insertion of the plug is formed in the distal end wall so as to communicate with the opening, and is held by the housing An optical element, a shutter that is incorporated in the opening of the housing and has a plate shape having a hinge shaft that is rotatably supported by the housing, and a spring that maintains the shutter in a closed state of the opening of the housing In a socket of an optical connector including a member, a notch is formed so as to penetrate each portion adjacent to each side wall of the bottom plate of the housing, and corresponds to the notch. The side walls are respectively formed with bearing portions for freely supporting the hinge shaft of the shutter, and each side wall is elastically deformed outward when the shutter is attached to the opening. When both are expanded, both side walls are restored to the initial state until the hinge shaft is supported by the bearing portion.

  In the socket connector of the optical connector according to claim 1 of the present invention, the moving amount in the left-right direction of the shutter is limited to a predetermined range by contacting the hinge shaft of the shutter with the side wall of the housing. The bulging part is integrally packaged.

  In the socket connector of the optical connector according to claim 2 of the present invention, a guide groove penetrating the notch is formed in the side wall, the bearing portion is formed in the guide groove, and the hinge shaft of the shutter is formed. A reinforcing portion accommodated in the guide groove is formed, and the hinge shaft, the reinforcing portion, and the bulging portion are integrally formed so as to increase in diameter in order.

  In the socket connector of the optical connector according to any one of claims 1 to 3, a chamfer for guiding the hinge shaft into the guide groove of the side wall is provided at each end of the hinge shaft of the shutter. It is formed.

  Compared with the prior art, the present invention has the following advantages, and the both side walls are arranged to be cantilevered by the notches and can be elastically deformed. This reduces the number of parts and simplifies the assembly method compared to the prior art. The amount of movement of the shutter 4 in the left-right direction is limited to a predetermined range by the bulging portion of the hinge shaft, and the hinge shaft can be prevented from being detached from the bearing portion.

  A preferred embodiment of a socket of an optical connector according to the present invention will be described below with reference to the accompanying drawings with reference to FIGS. A socket 100 of the optical connector includes a housing 1 provided with an opening 14 for inserting a plug (not shown), an optical element 2 held by the housing 1, and an intrusion of dust or the like incorporated in the housing 1. And a spring member 3 that keeps the shutter 4 in a state where the opening 14 is closed.

  The housing 1 includes a distal end wall 10 in which an insertion port 101 communicating with the opening 14 for inserting a plug is formed, a top plate 11 and a bottom plate 12 connected to be orthogonal to the distal end wall 10, and both side walls. 13, and the opening 13 is formed by the top plate 11, the bottom plate 12, and both side walls 13. Guide recesses 102 are formed on the left and right sides of the insertion port 101 so as to be fitted with guide protrusions (not shown) of the plug so that the plug can be accurately guided to a predetermined position. Is provided with a positioning hole 111 communicating with the opening 14 for positioning the plug at a predetermined position. A mounting groove 141 is formed in the bottom plate 12 so as to extend in parallel with the insertion direction of the plug. Between the mounting groove 141 and the opening 14, the spring member 3 is pressed against the mounting groove 141 and held. A pressing plate 142 is formed, and contact protrusions 143 are formed at both ends adjacent to the front end surface of the bottom plate 12, and in this embodiment, the mounting groove 141 communicates with the opening 14. is doing.

  A housing space 15 for housing the optical element 2 is formed at the rear end of the housing 1, and the optical element 2 is held in the housing space 15 by an engagement portion 16 that protrudes and is formed on the rear wall of the housing 1. The isolation wall 17 formed between the accommodating space 15 and the opening 14 is provided with a through hole 144 for communicating the accommodating space 15 and the opening 14 so as to pass therethrough. (Not shown) realizes transmission of an optical signal to and from the optical element 2 through the through-hole 144.

  The spring member 3 is held in the mounting groove 141 of the housing 1 and has both spring bodies 31 formed in a coil shape, a holding portion 32 having a U-shape for connecting one side of both spring bodies 31, And a slide portion 33 for exhibiting an L shape formed so as to extend outward from the other side of the spring main body 31, and when the spring member 3 is assembled into the housing 1, the holding portion 32 is a housing The upward movement of the holding portion 32 is restricted by being accommodated and held in one mounting groove 141. When the pair of slide portions 33 abut against the pair of abutment protrusions 143 of the housing 1, the movement of the spring member 3 in the left-right direction is limited.

  The shutter 4 basically includes a plate-shaped shutter main body 40, a base 45 having a thickness larger than the shutter main body 40, connected to one end of the shutter main body 40, and a pair of parallel formed on the back side of the shutter main body 40. It includes a slide groove 41 and a to-be-contacted portion 46 having a right angle formed on both side portions adjacent to the other end of the shutter body 40, and hinge shafts on both sides of the portion connected to the shutter body 40 and the base portion 45. 42 are formed so as to protrude from each other, and each hinge shaft 42 has a step between the bulging portion 43 connected to the shutter body 40 and the base 45 and the bulging portion 43 connected to the bulging portion 432. The hinge part 42, the reinforcement part 44, and the bulging part 43 are increasing in diameter in order. A chamfered portion 421 is formed at the free end of each hinge shaft 42.

  Grooves 131 are formed on the back sides of the side walls 13 of the housing 1 so as to extend forward from the rear. The grooves 131 do not penetrate the tip wall 10 and are connected to the tip wall 10. Is formed with an abutting portion 103 for abutting on the abutted portion 46 of the shutter 4, and abuts on the abutted portion 46 of the shutter 4 and the abutting portion 103 of the housing 1, whereby The outward rotation of the is limited. The groove 131 does not penetrate the tip wall 10 and the side wall 13, and the acting force when the shutter 4 is rotated is not completely received by the contact portion 103, and the side wall 13 can also share the acting force of the portion at the same time. Damage can be prevented.

  Guide grooves 132 are formed at the lower ends of the side walls 13 of the housing 1 to guide the incorporation into the opening 14 of the shutter 4, and the guide grooves 132 penetrate the bottom plate 12. The side wall 13 corresponding to the guide groove 132 is formed so as to pass through a bearing portion 133 that supports the hinge shaft 42 of the shutter 4 so as to freely rotate. A notch 121 passing through the bottom plate 12 is formed between each abutment convex portion 143 and the side wall 13 of the housing 1, and the notch 121 is formed to extend rearward from the tip of the bottom plate 12. . The side walls 13 are arranged so as to be cantilevered by the notch portions 121 and can be elastically deformed.

  When the shutter 4 is incorporated into the opening 14 of the housing 1, the side walls 13 are elastically expanded outwardly on the chamfered portion 421 of the hinge shaft 42, and the hinge shaft 42 of the shutter 4 is attached to the bearing portion 133. The shutter 4 is stably held in the housing 1 by the side wall 13 being restored to the initial state until it is done. At this time, the reinforcing portion 44 is accommodated in the guide groove 132, and the reinforcing shaft 44 can prevent the hinge shaft 42 from being torn. Since the bulging portion 43 is positioned so as to be adjacent to the side walls 13, the amount of movement of the shutter 4 in the left-right direction is predetermined by contacting the side walls 13 when the shutter 4 moves in the left-right direction. Limited within range. Since the slide portion 33 of the spring member 3 comes into contact with the slide groove 41 of the shutter 4 so as to slide, the shutter 4 maintains the closed state of the opening 14 by the action of the spring member 3. When the contacted portion 46 of the shutter 4 contacts the contact portion 103 of the housing 1, the outward rotation of the insertion port 101 of the shutter 4 is limited.

  The side walls 13 are arranged so as to be cantilevered by the notches 121 and can be elastically deformed. This reduces the number of parts and simplifies the assembly method compared to the prior art. The amount of movement of the shutter 4 in the left-right direction is limited to a predetermined range by the bulging portion 43 of the hinge shaft 42, and the hinge shaft 42 can be prevented from being detached from the bearing portion 133.

  Since the spring member 3 is immediately mounted in the mounting groove 141, the mounting method is simplified, the combination efficiency is improved, and the manufacturing cost is reduced as compared with the prior art.

  The socket 100 of the optical connector is mounted on the circuit board by a mounting portion 122 formed so as to extend downward from the bottom plate 12 of the housing 1. When the plug is inserted into the opening 14 from the insertion port 101, the shutter body 40 is rotated about the hinge shaft 42 by being pushed by the tip thereof, and is opened between the states corresponding to the insertion distance of the plug. Thus, the shutter main body 40 is pushed, and the slide portion 33 of the spring member 3 is slid rearward along the slide groove 41 of the shutter 4. When the plug is completely inserted into the opening 14, the shutter body 40 is rotated to a state parallel to the plug. When the plug is removed from the opening 14, the shutter body 4 automatically returns to the insertion port side until it comes into contact with the contacted portion 46 of the shutter 4 and the contact portion 103 of the housing 1 due to the elasticity of the spring member.

  Although the present invention has been described in detail with reference to the best embodiment, the embodiment is merely illustrative and is not limited thereto. In addition, the above description is intended to be within the scope of the claims of the present invention, such as modification or change of details that can be made based on the present invention.

It is an assembly perspective view of the socket of the optical connector concerning the present invention. It is the perspective view seen from the other angle of the socket of the optical connector shown in FIG. It is a disassembled perspective view of the socket of the optical connector which concerns on this invention. It is the disassembled perspective view seen from the other angle of the socket of the optical connector shown in FIG. It is an assembly perspective view which removed the shutter of the socket of the optical connector concerning the present invention. FIG. 4 is a cross-sectional view taken along the line AA of the housing of the socket of the optical connector shown in FIG. 3. It is a bottom view of the socket of the optical connector which concerns on this invention. It is a perspective view of the shutter of the socket of the optical connector which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Optical connector socket 1 Housing 10 Front end surface 11 Top plate 12 Bottom plate 13 Side wall 14 Opening part 15 Accommodating space 16 Engaging part 17 Isolation wall 101 Insertion slot 102 Guide recessed part 103 Contact part 111 Positioning hole 121 Notch part 122 Attachment part 131 Groove part 132 Guide groove 133 Bearing part 141 Mounting groove 142 Press plate 143 Abutting convex part 144 Through hole 2 Optical element 3 Spring member 31 Spring main body 32 Holding part 33 Holding part 4 Shutter 40 Shutter main body 41 Slide groove 42 Hinge shaft 43 Swelling Protruding part 44 Reinforcing part 45 Base part 46 Contacted part 421 Chamfered part

Claims (4)

A top plate, a top plate, a bottom plate, and both side walls connected to be orthogonal to the tip wall, and an opening for inserting a plug is formed by the top plate, the bottom plate, and both side walls, A housing in which an insertion port for guiding insertion of the plug is formed in the distal end wall so as to communicate with the opening;
An optical element held in the housing;
A shutter that is incorporated in the opening of the housing and has a plate shape having a hinge shaft that is rotatably supported by the housing;
In a socket of an optical connector including a spring member that maintains the shutter in a closed state of the opening of the housing,
Notches are formed so as to penetrate through portions adjacent to the respective side walls of the bottom plate of the housing, and the hinge shafts of the shutters are rotatably supported on the side walls corresponding to the notches. Each bearing part is formed,
When the shutter is attached to the opening, if the side walls expand elastically outward, both side walls are restored to the initial state until the hinge shaft is supported by the bearing portion. An optical connector socket characterized by   A bulging portion for limiting the amount of movement of the shutter in the left-right direction within a predetermined range by being in contact with the side wall of the housing is integrally packaged on the hinge shaft of the shutter. The optical connector socket according to claim 1.   A guide groove that penetrates through the notch is formed in the side wall, the bearing is formed in the guide groove, and a reinforcing part that is received in the guide groove is formed on the hinge shaft of the shutter, The optical connector socket according to claim 2, wherein the hinge shaft, the reinforcing portion, and the bulging portion are integrally formed so as to increase in diameter in order.   4. The light according to claim 1, wherein a chamfered portion for guiding the hinge shaft to the guide groove of the side wall is formed at each end of the hinge shaft of the shutter. 5. Connector socket.

Images