KR102524576B1 - Optical Connector - Google Patents

Abstract

The present invention provides an optical element coupled to one surface of a substrate, a control element coupled to one surface of the substrate at a position spaced apart from the optical element, a receptacle assembly coupled to the substrate to cover the optical element and the control element, and an optical transmission cable housed therein. and a plug assembly coupled to the receptacle assembly so as to be aligned with the optical element, the receptacle assembly forming a sealed space with the substrate and accommodating the optical element and the control element in the sealed space, and a receptacle body formed on the receptacle body. The plug assembly includes a plug body into which an optical transmission cable is inserted, and a coupling member formed to protrude downward from the plug body, and the coupling member is inserted into the coupling groove as the plug body moves downward. It relates to an optical connector for fixing a plug body.

Description

Optical Connector {Optical Connector}

The present invention relates to an optical connector for transmitting an optical signal using an optical transmission cable such as an optical fiber.

Recently, electronic devices have been progressing in high performance, high speed, integration, miniaturization and thinness thanks to the development of IT technology. Types of electronic devices include, for example, smart phones, smart TVs, computers, tablet PCs, displays, digital cameras, camcorders, MP3 players, game consoles, and navigation devices.

Recent trends in electronic devices require high-speed transmission technology for high-capacity data such as high-definition and 3D video contents between boards in devices, and accordingly, signal attenuation, noise, EMI/EMC, impedance matching, cross talk, skew, and miniaturization of wiring, etc. This is emerging as a big issue.

BACKGROUND OF THE INVENTION [0002] In general, copper-based wires, that is, electrical connectors, are used for data transmission within a device. However, copper wiring does not satisfy the need for high-speed transmission of large-capacity data, and also fails to solve various technical issues in accordance with the aforementioned recent trends in electronic devices.

As a technology to solve this problem, recently, optical wiring technology has been researched and developed. That is, the optical wiring replaces tens of channels of parallel electrical signal lines with serial optical signal lines, enabling high-speed transmission of large-capacity data.

In general, in order to connect an optical signal line and a board in a device, an optical connector element having a photoelectric conversion function is used. An optical connector according to the prior art includes a receptacle assembly mounted on a board in a device and a plug assembly fastened to the receptacle. The optical connector according to the prior art has a problem in that it is difficult to realize miniaturization and low profile because the fixing structure of the plug assembly to the receptacle assembly is complicated.

The present invention has been made to solve the above-mentioned problems, and is to provide an optical connector having an improved structure so as to realize miniaturization and low profile.

The present invention may include the following configuration in order to solve the problems as described above.

An optical connector according to an embodiment of the present invention includes an optical element coupled to one surface of a substrate, a control element coupled to one surface of the substrate at a position spaced apart from the optical element, and the substrate to cover the optical element and the control element. and a plug assembly coupled to the receptacle assembly so that an optical transmission cable stored therein can be aligned with the optical device.

In addition, the receptacle assembly of the optical connector according to an embodiment of the present invention forms a sealed space with the substrate and has a receptacle body for accommodating the optical element and the control element in the sealed space, and formed in the receptacle body. It may include a coupling groove.

In addition, the plug assembly of the optical connector according to an embodiment of the present invention may include a plug body into which the optical transmission cable is inserted, and a coupling member formed to protrude downward from the plug body.

Also, the coupling member of the optical connector according to an embodiment of the present invention may be inserted into the coupling groove to fix the plug body as the plug body moves in the lower direction.

An optical connector according to another embodiment of the present invention includes a receptacle body formed with the coupling groove, a receiving groove formed on a bottom surface of the receptacle body to form an airtight space with the substrate to accommodate the optical device and the control device, and the A fitting member formed in the receiving groove may be included for optical alignment between the optical device and the plug assembly.

In addition, the receptacle assembly of the optical connector according to another embodiment of the present invention forms a sealed space with the substrate and has a receptacle body for accommodating the optical element and the control element in the sealed space, and formed in the receptacle body. It may include a coupling groove.

Further, the plug assembly of the optical connector according to another embodiment of the present invention may include a plug body into which the optical transmission cable is inserted, and a coupling member formed to protrude from the plug body in a first direction.

Also, the coupling groove of the optical connector according to another embodiment of the present invention may be formed on a side surface of the receptacle body disposed to face the plug body.

Also, the coupling member of the optical connector according to another embodiment of the present invention may be inserted into the coupling groove to fix the plug body as the plug body moves toward the first direction.

According to the present invention, the following effects can be achieved.

The present invention provides the optical element, the control element, and the receptacle assembly coupled to the sub-board in the form of a module, so that the convenience of mounting and using the modularized receptacle assembly on the main board desired by the user can be provided.

In addition, the present invention implements a modularized receptacle assembly and a plug assembly as separate configurations so that only defective components are replaced, thereby reducing the defect rate of products and reducing process costs.

In addition, the present invention is implemented so that the optical element and the control element are not directly connected but connected through pads and a waveguide connecting the pads, so that miniaturization and low-profile implementation is possible, so that it can have versatility applicable to miniaturized electronic devices. , it is possible to reduce the connection length by wire bonding to improve the connection stability and reduce the production cost through material reduction.

In addition, the present invention can protect the optical element and the control element from the outside by being housed in a sealed receiving groove on the substrate.

In addition, the present invention can improve the stability of optical signal transmission performance by preventing the optical alignment between the optical element and the receptacle assembly from being misaligned due to external forces such as vibration and shaking.

1 is a perspective view of an optical connector according to an embodiment of the present invention;
2 is an exploded perspective view of an optical connector according to an embodiment of the present invention;
3 is a perspective view showing a state in which a receptacle assembly is coupled to a substrate in an optical connector according to an embodiment of the present invention;
4 is a bottom perspective view of a plug assembly in an optical connector according to an embodiment of the present invention;
5 is a schematic side cross-sectional view of an optical connector according to an embodiment of the present invention;
6 is a bottom perspective view of a receptacle assembly in an optical connector according to an embodiment of the present invention;
7 is a perspective view of an optical connector according to another embodiment of the present invention;
8 is an exploded perspective view of an optical connector according to another embodiment of the present invention;
9 is a perspective view showing a state in which a receptacle assembly is coupled to a substrate in an optical connector according to another embodiment of the present invention.
10 is a schematic front view of a receptacle assembly in an optical connector according to another embodiment of the present invention.
11 is a bottom perspective view of a plug assembly in an optical connector according to another embodiment of the present invention;
12 is a schematic front view of a plug assembly in an optical connector according to another embodiment of the present invention.
13 is a schematic side cross-sectional view of an optical connector according to another embodiment of the present invention
14 is a bottom perspective view of a receptacle assembly in an optical connector according to another embodiment of the present invention.

Hereinafter, an embodiment of an optical connector according to the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIGS. 1 and 2 , the optical connector 1 according to the present invention is used to transmit an optical signal within an electronic device or between electronic devices. For example, the optical connector 1 according to the present invention may be applied to display devices such as TVs, USB cables, and HDMI (High Definition Multimedia Interface).

An optical connector 1 according to the present invention includes an optical element 11 coupled to a substrate 10, a control element 12 coupled to the substrate 10, the optical element 11 and the control element 12 It may include a receptacle assembly 2 coupled to the substrate 10 to cover, and a plug assembly 3 coupled to the receptacle assembly 2 . The substrate 10 may be a printed circuit board (PCB).

The optical element 11 is for transmitting an optical signal. The optical device 11 may be coupled to the substrate 10 . The optical element 11 may be coupled to the substrate 10 from the bottom of the substrate 10 toward an upper direction (a UD arrow direction, shown in FIG. 2 ). The upward direction (direction of arrow UD) may correspond to a normal direction of the substrate 10 . The optical element 11 is located between the control element 12 and the plug assembly 3 . The optical element 11 and the control element 12 may be directly connected by wire bonding. The optical element 11 and the control element 12 are not directly connected but may be connected through pads formed on the substrate 10 and a waveguide connecting the pads. For example, the optical device 11 may be connected to one pad through wire bonding and the control device 12 may be connected through a waveguide by connecting to another pad through a flip chip process. In particular, since the optical device 11 has a pattern for connecting to a pad formed on the upper surface of the optical device 11, the optical connector 1 according to the present invention includes the optical device 11 and the control device ( 12) can be formed on the same surface of the substrate 10, the optical element 11 is coupled to the substrate 10 through wire bonding, and the control element 12 is coupled to the substrate 10 through a flip chip process. (10) can be combined.

However, since the present invention is not limited thereto, both the optical element 11 and the control element 12 may be connected to the substrate 10 through wire bonding, or the optical element 11 and the control element 12 may be connected to each other through wire bonding. ) may all be connected to the substrate 10 through a flip chip process.

Accordingly, the optical connector 1 according to the present invention can achieve the following operational effects.

In the optical connector 1 according to the present invention, since the optical element 11 and the control element 12 are not directly connected but connected through pads and a waveguide connecting the pads, miniaturization and low-profile implementation are possible. Therefore, it can have versatility applicable to miniaturized electronic devices, reduce connection length by wire bonding, improve connection stability, and reduce production cost through material reduction. Specifically, when the height of the control element 12 is higher than that of the optical element 11, the height of the bonding wire is formed high as the optical element 11 is directly connected to the control element 12. can Further, according to the comparative example in which the optical element 11 is directly connected to the control element 12, the connection length by wire bonding can be longer than that of the present invention in which the optical element 11 is connected to the pad. In this way, when the connection length by wire bonding is increased, the risk of disconnection of the bonding wire due to external forces such as vibration and shaking increases, and production cost increases due to increased materials. Therefore, the optical connector 1 according to the present invention is implemented so that the optical element 11 is connected to the pad through wire bonding, so that the height of the bonding wire can be reduced to realize miniaturization and low profile, and improve connection stability. Material savings can reduce production costs.

When the optical connector 1 according to the present invention is used as a transmitter, the optical element 11 emits light such as a laser diode, a vertical-cavity surface-emitting laser (VCSEL), or the like. may contain elements. When the optical connector 1 according to the present invention is used as a receiving unit, the optical element 11 may include a light receiving element such as a photo diode (PD).

The optical element 11 may be implemented in plural numbers to realize multi-channel. The optical devices 11 may be coupled to the substrate 10 to be spaced apart from each other along the first axis direction (X-axis direction, shown in FIG. 2).

The control element 12 is for driving the optical element 11 . The control element 12 may be coupled to the substrate 10 on the opposite side of the plug assembly 3 based on the optical element 11 . The control element 12 may be implemented as a driver-IC.

The plug assembly 3 may be coupled to the receptacle assembly 2 . The plug assembly 3 is coupled to the receptacle assembly 2 by moving in the lower direction (DD arrow direction, shown in FIG. 2), and moves in the upper direction (UD arrow direction) to the receptacle assembly 2 The bond can be released from Accordingly, at least a portion of the plug assembly 3 may be located in the upward direction (direction of arrow UD) with respect to the receptacle assembly 2 .

The plug assembly 3 may include a plug body 30 (shown in FIG. 2). An optical transmission cable (100, shown in FIG. 1) may be inserted into the plug body 30. The optical transmission cable 100 is inserted into the plug body 30 along a second axial direction (Y-axis direction, shown in FIG. 1) perpendicular to the first axial direction (X-axis direction). A plurality of optical transmission cables 100 may be inserted into the plug body 30 . To this end, the plug assembly 3 may include an insertion groove 30a (shown in FIG. 2 ) formed in the plug body 30 into which the optical transmission cable 100 is inserted. The plug body 30 may be formed in a rectangular parallelepiped shape as a whole, but is not limited thereto, and is capable of accommodating a plurality of optical transmission cables 100 and movably coupled to the receptacle assembly 2 in other shapes. may be formed.

In this way, the optical connector 1 according to the present invention implements the receptacle assembly 2 and the plug assembly 3 as separate components, and the plug assembly 3 is coupled to the receptacle assembly 2 to transmit the light. By arranging the cable 100 to the optical element 11, it is possible to prevent an increase in processing cost due to product defects.

For example, according to the comparative example in which the receptacle assembly 2 and the plug assembly 3 are integrally formed, when manufacturing tolerances occur in either of the receptacle assembly 2 and the plug assembly 3, the optical connector 1 itself will be discarded as defective. Specifically, if the optical element 11 is not accommodated in the receptacle assembly 2 at the set position due to manufacturing tolerances or the optical transmission cable 100 is not inserted into the plug assembly 3 at the set position, the optical connector (1) itself is discarded as a defective product. In contrast, the optical connector 1 according to the present invention includes the receptacle assembly 2 and the plug assembly 3 as separate components, and the plug assembly 3 is coupled to the receptacle assembly 2, so that When compared with the comparative example, there is an advantage in that the process cost can be reduced by lowering the defect rate of the product.

Hereinafter, structures of the receptacle assembly 2 and the plug assembly 3 according to an embodiment of the present invention will be described in detail.

Referring to FIGS. 3 and 4 , the receptacle assembly 2 includes a coupling groove 21 (shown in FIG. 3 ) for fixing the plug assembly 3 . The plug assembly 3 is inserted into the coupling groove 21 and aligned with the optical element 11 .

The receptacle assembly 2 includes a receptacle body 20 (shown in FIG. 2 ) in which the coupling groove 21 is formed. The receptacle body 20 supports the plug assembly 3 . The coupling groove 21 may be formed by being recessed to a predetermined depth from the upper surface 201 (shown in FIG. 2 ) of the receptacle body 20 . The coupling groove 21 may be formed in a cylindrical shape to have a circular cross section, but is not limited thereto.

When the receptacle assembly 2 includes the coupling groove 21, the plug assembly 3 is inserted into the coupling groove 21 and the coupling member 31 for fixing the plug body 30 (Fig. 4) may be included. The coupling member 31 may be formed to protrude from the plug body 30 in the downward direction (DD arrow direction). The coupling member 31 may be formed in a shape corresponding to the shape of the coupling groove 21 . For example, the coupling member 31 may be formed in a cylindrical shape having a circular cross section. The coupling member 31 may be inserted into the coupling groove 21 as the plug body 30 moves in the downward direction (DD arrow direction).

Accordingly, the optical connector 1 according to the present invention can achieve the following operational effects.

First, in the optical connector 1 according to the present invention, the plug body 30 moves in the first axial direction (X-axis direction) and the second axial direction by an external force such as vibration or shaking through the coupling member 31. It is possible to prevent movement in the direction (Y-axis direction). Therefore, the optical connector 1 according to the present invention is designed to transmit light between the optical element 11 coupled to the substrate 10 and the optical transmission cable 100 inserted into the plug assembly 3 by an external force such as vibration or shaking. By preventing misalignment, it is possible to improve the stability of optical signal transmission performance. The coupling member 31 can be released from the coupling groove 21 as the plug body 30 moves in the upward direction (UD arrow direction).

Second, the optical connector 1 according to the present invention forms the coupling member 31 so as to protrude from the plug body 30 toward the lower direction (DD arrow direction), so that the plug body 30 is connected to the receptacle body. Inverse insertion into (20) can be prevented. At this time, reverse insertion means insertion in a state where the plug assembly 3 disposed in the same direction (positive direction) as shown in FIG. 2 is turned 180 degrees relative to the second axial direction (Y-axis direction).

The receptacle assembly 2 may include a plurality of coupling grooves 21 . The coupling grooves 21 are first coupling grooves 21a (shown in FIG. 3) and second coupling grooves formed on the receptacle body 20 to be spaced apart from each other along the first axial direction (X-axis direction). 21b, shown in FIG. 3). In this case, the plug assembly 3 may include a plurality of coupling members 31 . The coupling members 31 are first coupling members 31a (shown in FIG. 4) and second coupling members (31a, shown in FIG. 4) formed on the plug body 30 to be spaced apart from each other along the first axial direction (X-axis direction). 31b) may be included.

The plug assembly 3 may include a support member 32 (shown in FIG. 4). The support member 32 is for supporting the coupling member 31 . The support member 32 may be formed to protrude from the plug body 30 toward a first direction (FD arrow direction, shown in FIG. 4 ). The first direction (the direction of the FD arrow) may refer to a direction from the optical device 11 toward the control device 12 . The support member 32 may be formed to extend from the upper surface 301 (shown in FIG. 2 ) of the plug body 30 toward the first direction (direction of arrow FD). The support member 32 may have a shorter length than the plug body 30 in the third axial direction (Z-axis direction, shown in FIG. 4 ). In this case, the coupling member 31 may be formed to protrude from the support member 32 toward the lower direction (DD arrow direction).

Accordingly, in the optical connector 1 according to the present invention, the plug body 30 is coupled to the receptacle body 20 through the coupling member 31 formed on the support member 32, thereby miniaturizing and reducing the height. It can be implemented and has versatility applicable to miniaturized electronic devices. Specifically, as described above, in the optical connector 1 according to the present invention, the plug assembly 3 can be coupled to the receptacle assembly 2 in an upward direction (direction of arrow UD) with respect to the receptacle assembly 2. However, according to the comparative example in which the coupling member protrudes directly from the plug body and is coupled to the receptacle body, since the total height of the optical connector is the sum of the height of the plug body and the height of the receptacle body, miniaturization of the optical connector and Low profile implementation can be difficult. Accordingly, the optical connector 1 according to the present invention includes a support member 32 extending from the plug body 30 toward the first direction (the direction of the FD arrow), and from the support member 32 to the coupling member 32. By being implemented so that the member 31 protrudes, miniaturization and low-profile implementation are possible.

When the plug assembly 3 includes the support member 32, the receptacle assembly 2 may include a support groove 22 (shown in FIG. 3). The support groove 22 is for supporting the support member 32 . The support groove 22 may be formed by being recessed to a predetermined depth from the upper surface 201 of the receptacle body 20 .

The coupling groove 21 may be formed in the support groove 22 . The coupling groove 21 may be formed in the receptacle body 20 to communicate with the support groove 22 . The coupling groove 21 may be formed in the receptacle body 20 so as to be located in the lower direction (direction of arrow DD) with respect to the support groove 22 . The support member 32 is supported by the support groove 22 in a state in which the coupling member 31 is inserted into the coupling groove 21, so that the plug body 30 is coupled to the receptacle body 20. can be made

Referring to FIGS. 5 and 6 , the receptacle assembly 2 may include a receiving groove 23 (shown in FIG. 6 ) formed in the receptacle body 20 .

The accommodating groove 23 is for accommodating the optical element 11 and the control element 12 . The receiving groove 23 is formed on the lower surface 202 of the receptacle body 20 . Accordingly, the receptacle assembly 2 covers the optical element 11 and the control element 12 so that the optical element 11 and the control element 12 are accommodated in the accommodating groove 23. It may be coupled to the substrate 10 . The receptacle assembly 2 may protect the optical device 11 and the control device 12 from the outside. The receptacle assembly 2 may be coupled to the substrate 10 so that the receiving groove 23 is sealed. Accordingly, the receptacle assembly 2 can more stably protect the optical element 11 and the control element 12 from the outside.

Although not shown, when the receptacle assembly 2 is coupled to the substrate 10 such that the receiving groove 23 is sealed, an air discharge hole may be formed in the substrate 10 . The air discharge hole is for discharging air from the receiving groove 23 . An air discharge hole may be formed to pass through the substrate 10 . An air discharge hole may be formed to pass through the substrate 10 along the third axial direction (Z-axis direction). The air discharge hole may be formed to pass through the substrate 10 within an area where the receiving groove 23 is formed based on an X-Y plane formed by the X-axis and the Y-axis. Accordingly, it is possible to prevent a problem in which the air in the sealed receiving groove 23 expands and explodes as the air in the sealed receiving groove 23 is heated during the thermal curing process of forming the optical connector 1 according to the present invention. That is, during the process of forming the optical connector 1 according to the present invention, the optical connector 1 may be sealed using a thermosetting material such as EMC (Epoxy Molding Compound). When heated in this state, the air in the receiving groove 23 may expand and explode.

Therefore, the optical connector 1 according to the present invention can prevent an accident such as an explosion by allowing the air in the accommodation groove 23 to be discharged through the air discharge hole. An air discharge hole may also be formed in the receptacle body 20 surrounding the accommodating groove 23 . In this case, the air discharge hole may be formed to pass through the receptacle body 20 in an area surrounding the accommodating groove 23 . For example, an air discharge hole may be formed to penetrate the receptacle body 20 from the receiving groove 23 toward the first direction (the direction of the FD arrow).

When at least one of the optical element 11 and the control element 12 is connected to the substrate 10 through wire bonding, air discharge holes are formed on the lower side of the optical element 11 and the control element 12. It may be formed on the substrate 10 in the direction (DD arrow direction). Accordingly, in the optical connector 1 according to the present invention, heat generated from the optical element 11 and the control element 12 is directly discharged to the outside through the lower air discharge hole, so that temperature rise can be prevented. .

Referring to FIG. 6 , the receptacle assembly 2 may include an alignment member 24 (shown in FIG. 6 ).

The alignment member 24 is formed to protrude from the receptacle body 20 . The alignment member 24 may be formed to protrude from the receptacle body 20 in the downward direction (DD arrow direction). The alignment member 24 may be formed to protrude from the lower surface 202 of the receptacle body 20 . The alignment member 24 allows the optical element 11 and the control element 12 to be accommodated in the accommodating groove 23 while the receptacle assembly 2 moves in the downward direction (DD arrow direction). The alignment position of the receptacle body 20 is guided.

That is, the alignment member 24 has a function of guiding optical alignment between the optical element 11 and the plug assembly 3 to be achieved. The receptacle assembly 2 may include a plurality of alignment members 24 . The alignment members 24 may be formed at positions spaced apart from each other in the first axial direction (X-axis direction). The alignment members 24 may be formed at positions spaced apart from each other in the second axial direction (Y-axis direction). The alignment members 24 may have different cross-sectional widths.

When the receptacle assembly 2 includes the alignment member 24, an alignment groove 14 (shown in FIG. 2) may be formed in the substrate 10.

The aligning groove 14 is for inserting the aligning member 24 . The alignment groove 14 may be formed to pass through the substrate 10 . The alignment groove 14 may be formed to pass through the substrate 10 along the third axial direction (Z-axis direction). The receptacle body 20 may be coupled to the substrate 10 such that the alignment member 24 is inserted into the alignment groove 14 . The receptacle assembly 2 moves in the downward direction (direction of the DD arrow) in a state where the receiving groove 23 is located above the optical element 11 and the control element 12, so that the optical element 11 ) and the control element 12 can be accommodated in the receiving groove 21. In this process, the aligning member 24 may be inserted into the aligning groove 14 .

Accordingly, the optical connector 1 according to the present invention can achieve the following operational effects.

First, in the optical connector 1 according to the present invention, as the receptacle assembly 2 is coupled to the substrate 10 so that the aligning member 24 is inserted into the aligning groove 14, the optical element 11 And the control element 12 may be accommodated in the receiving groove 23 . Therefore, the optical connector 1 according to the present invention can protect the optical element 11 and the control element 12 from the outside by being accommodated in the sealed receiving groove 23 on the substrate 10 .

Second, the optical connector 1 according to the present invention can prevent the receptacle assembly 2 aligned with the optical element 11 from moving. Therefore, the optical connector 1 according to the present invention prevents the optical alignment between the optical element 11 and the receptacle assembly 2 from being misaligned due to external forces such as vibration and shaking, thereby providing stability in optical signal transmission performance. can improve

Third, in the optical connector 1 according to the present invention, the optical element 1 and the alignment groove 14 may be formed on the same plane. For example, in the optical connector 1 according to the present invention, both the optical element 1 and the alignment groove 14 may be formed on the X-Y plane. Therefore, since the optical device 11 can be coupled to the substrate 10 based on the position where the alignment groove 14 is formed, the optical alignment between the optical device 11 and the receptacle assembly 2 Accuracy can be improved.

Referring to FIG. 5 , the receptacle assembly 2 may include an inclined member 25 (shown in FIG. 5).

The inclined member 25 is for changing the traveling direction of the optical signal through the optical element 11 or the optical transmission cable 100 . That is, in the optical connector 1 according to the present invention, the optical element 11 is formed to face the upper direction (UD arrow direction) from the substrate 10, and the optical transmission cable 100 is formed to the second axis. Since it is inserted into the insertion groove 30a along the direction (Y-axis direction), the traveling direction of the optical signal through the optical element 11 and the traveling direction of the optical signal through the optical transmission cable 100 are not parallel. will not be The inclined member 25 changes the traveling direction of the optical signal through the optical device 11 toward the optical transmission cable 100 or changes the traveling direction of the optical signal through the optical transmission cable 100 to the optical device 11 ), the optical signal through the optical element 11 and the optical signal through the optical transmission cable 100 are aligned. The inclined member 25 may be formed in the receptacle body 20 to be positioned in the first direction (direction of an arrow FD) with respect to the insertion groove 30a into which the optical transmission cable 10 is inserted. The inclined member 25 may be formed on the receptacle body 20 to be positioned at the same position as the optical element 11 based on the X-Y plane. That is, the inclined member 25 is located in the upward direction (direction of arrow UD) with respect to the optical element 11 .

The inclined member 25 may be inclined so as to decrease in height toward the first direction (the direction indicated by the FD arrow). An included angle between the inclined member 25 and the lower surface 202 of the receptacle body 20 may form an acute angle. Since the optical signal passing through the optical device 11 is directed in the upward direction (direction of the UD arrow) and the optical signal passing through the optical transmission cable 100 is directed in the first direction (direction of the FD arrow), each optical signal forms The angle forms 90 degrees. Accordingly, an included angle between the inclined member 25 and the lower surface 202 of the receptacle body 20 may be 45°.

The inclined member 25 may reflect an optical signal transmitted from the optical device 11 or an optical signal transmitted from the optical transmission cable 100 . To this end, the receptacle body 20 may be formed of a material capable of totally reflecting an optical signal transmitted from the optical device 11 or an optical signal transmitted from the optical transmission cable 100 by the inclined member 25. there is. Total reflection refers to a phenomenon in which all optical signals are reflected at the interface between the media when the incident angle is greater than a critical angle when an optical signal travels from a medium having a high refractive index to a medium having a low refractive index.

As shown in FIG. 5, in the optical connector 1 according to the present invention, a groove is formed in the first direction (the direction of the FD arrow) with respect to the inclined member 25 so that outside air can be located. The receptacle body 20 may be positioned in the second direction (SD arrow direction, shown in FIG. 5 ) based on the inclined member 25 . The second direction (direction of arrow SD) is opposite to the first direction (direction of arrow FD). Therefore, in the optical connector 1 according to the present invention, the receptacle body 20 is made of a material having a refractive index such that light directed to the inclined member 25 is totally reflected at the boundary between the inclined member 25 and the outside air. can form For example, since the inclined member 25 may be formed at an angle of 45° with respect to the bottom surface 202 of the receptacle body 20, the optical signal transmitted from the optical element 11 or the optical transmission cable 100 The incident angle at which the optical signal transmitted from the light signal is incident on the inclined member 25 is 45°. Therefore, in the optical connector 1 according to the present invention, the receptacle body 20 is formed of a material having a critical angle of less than 45° in consideration of the refractive index of external air, so that all optical signals can be reflected by the inclined member 25. there is. However, since the present invention is not limited thereto, the inclined member 25 may be formed in a form in which a material capable of reflecting an optical signal is coupled to an inclined surface.

As shown in FIG. 3, the inclined member 25 is located between the first coupling groove 21a and the second coupling groove 21b based on the first axial direction (X-axis direction), and the It may be formed on the receptacle body 20 to overlap with the first coupling groove 21a and the second coupling groove 21b based on the second axial direction (Y-axis direction). Accordingly, the optical connector 1 according to the present invention can be miniaturized by reducing the length of the receptacle body 20 formed along the second axis direction (Y axis direction). For example, when the inclined member 25 is located in the second direction (SD arrow direction) with respect to the first coupling groove 21a and the second coupling groove 21b, the length of the receptacle body 20 is can be increased Accordingly, in the optical connector 1 according to the present invention, the inclined member 25 has the first coupling groove 21a and the second coupling groove 21b based on the second axis direction (Y axis direction). It is provided so as to overlap with, so that miniaturization can be realized.

Referring to FIGS. 5 and 6 , the receptacle assembly 2 may include a first light collecting member 26 (shown in FIG. 5 ).

The first condensing member 26 is for condensing an optical signal passing through the optical transmission cable 100 or the optical element 11 . The first light collecting member 26 may be formed on the receptacle body 20 in a convex shape toward the optical element 11 within the receiving groove 23 . The first light collecting member 26 may be formed on the receptacle body 20 so as to be positioned in the upward direction (direction of arrow UD) with respect to the optical element 11 . The first concentrating member 26 is formed in a spherical shape or an aspherical shape, and can collect optical signals passing through the optical transmission cable 100 or the optical element 11 . The first light collecting member 26 is positioned between the optical element 11 accommodated in the receiving groove 23 and the receptacle body 20, so that the light passes through the optical transmission cable 100 and the optical element 11. signal can pass through.

The receptacle assembly 2 is formed so that the central axis of the first light collecting member 26 and the central axis of the optical element 11 are positioned within a predetermined range, so that the optical element 11 and the first light collecting member (26) can implement optical alignment and improve the stability of optical signal transmission performance. The predetermined range means a range in which a target light transmission efficiency can be achieved through the optical alignment of the optical element 11 and the first light collecting member 26, and the type of electronic device to which the optical connector is applied and It may be set differently by reflecting manufacturing tolerances and the like.

Accordingly, the optical connector 1 according to the present invention can achieve the following operational effects.

The optical connector 1 according to the present invention aligns the optical device 11 and the first light concentrating member 26 in a passive optical alignment method. Specifically, the optical alignment method can be divided into an active optical alignment method and a passive optical alignment method. It is to search and find the point or state that produces transmission efficiency, and maintain the components that transmit or receive the optical signal at that point or state. That is, in the active optical alignment method, transmission efficiency is measured using measuring equipment such as a spectrum analyzer for an optical signal generated from an optical element, etc., and a state in which the transmission efficiency satisfies a predetermined condition is searched for and based on the searched state. Thus, the optical element or the like must be sequentially fixed to the determined position. As a result, when aligning the optical element and the second light concentrating member using the active light alignment method, there is a problem in that it takes a lot of time and money.

Therefore, in the optical connector 1 according to the present invention, as the aligning member 24 is inserted into the aligning groove 14, the first light collecting member 26 can be aligned with the optical element 11, In this way, since the optical element 11 and the first light concentrating member 26 are aligned in the passive optical alignment method, overall process time and manufacturing cost can be reduced.

Referring to FIGS. 1 to 6 , the plug assembly 3 may include a second light collecting member 33 (shown in FIG. 4 ).

The second concentrating member 33 is for condensing an optical signal passing through the optical transmission cable 100 or the optical element 11 . The second light collecting member 33 may be formed to be convex from the plug body 30 toward the first direction (direction of arrow FD). The second light collecting member 33 may be formed convexly toward the first direction (direction of arrow FD) from a side surface of the plug body 30 facing toward the first direction (direction of arrow FD). The second light collecting member 33 is positioned between the optical transmission cable 100 inserted into the insertion groove 30a and the receptacle body 20, so that light passes through the optical transmission cable 100 and the optical element 11. signal can pass through.

The plug assembly 3 is formed such that the central axis of the second light collecting member 33 is located within a predetermined range from the central axis of the insertion groove 30a into which the optical transmission cable 100 is inserted, so that the optical transmission cable 100 is inserted. It is possible to realize optical alignment between the 100 and the second light collecting member 33 and improve the stability of optical signal transmission performance. The predetermined range means a range in which a target optical transmission efficiency can be achieved through optical alignment of the optical transmission cable 100 and the second light collecting member 33, and the type of electronic device to which the optical connector is applied and It may be set differently by reflecting manufacturing tolerances and the like.

The second light collecting member 33 may be formed in a spherical surface shape or an aspherical surface shape. As described above, the optical connector 1 according to the present invention is formed so that the central axis of the second light collecting member 33 is located within a predetermined range from the central axis of the insertion groove 30a, so that the optical transmission cable ( 100) and the second light collecting member 33 are realized. In particular, when the central axis of the second concentrating member 33 can be manufactured within a predetermined range from the central axis of the insertion groove 30a, it is advantageous to form the second concentrating member 33 in an aspheric shape. It is effective in reducing signal loss, and when the central axis of the second light collecting member 33 is out of a predetermined range from the central axis of the insertion groove 30a due to manufacturing tolerance, the second light collecting member 33 is formed in a hemispherical shape. It is effective to reduce the optical signal loss due to the error of the central axis.

Accordingly, the optical connector 1 according to the present invention can achieve the following operational effects.

First, in the optical connector 1 according to the present invention, the optical transmission cable 100 and the second light collecting member 33 are aligned in a passive optical alignment method. Specifically, the optical alignment method can be divided into an active optical alignment method and a passive optical alignment method. It is to search and find the point or state that produces transmission efficiency, and maintain the components that transmit or receive the optical signal at that point or state. That is, in the active optical alignment method, transmission efficiency is measured using measuring equipment such as a spectrum analyzer for an optical signal generated from an optical transmission cable, etc., and a state in which the transmission efficiency satisfies a predetermined condition is searched and based on the searched state Therefore, the optical transmission cables and the like must be sequentially fixed to the determined positions. As a result, when aligning the optical transmission cable and the second light concentrating member using the active optical alignment method, there is a problem in that it takes a lot of time and money.

Therefore, in the optical connector 1 according to the present invention, the optical transmission cable 100 and the second light collecting member 33 are aligned in a passive optical alignment method, thereby reducing overall process time and manufacturing cost.

Second, the optical connector 1 according to the present invention collects the optical signal passing through the optical element 11 or the optical transmission cable 100 through the second concentrating member 33 formed in a spherical or aspherical shape, Even when the optical element 11 or the optical transmission cable 100 is misaligned, optical transmission efficiency can be maintained. In particular, in the optical connector 1 according to the present invention, the second light collecting member 33 is formed of a spherical lens or an aspheric lens in consideration of manufacturing tolerances of equipment to be manufactured, thereby minimizing optical signal loss and improving optical signal transmission efficiency. can increase

The plug assembly 3 may include a plurality of second light collecting members 33 . The second light collecting members 33 may be formed on the plug body 30 at positions spaced apart from each other in the first axial direction (X-axis direction). The plug assembly 3 may include the same number of second light collecting members 33 as the optical transmission cable 100 .

Referring to FIGS. 1 to 5 , the plug assembly 3 may include a covering member 34 (shown in FIG. 5 ).

The covering member 34 is formed to protrude from the plug body 30 . The covering member 34 may be formed to protrude from the plug body 30 toward the first direction (the direction of the FD arrow). The covering member 34 may be formed on the plug body 30 to be positioned above the second light collecting member 33 based on the third axial direction (Z-axis direction). The covering member 34 may be formed on the plug body 30 to have a length equal to or longer than the length at which the second concentrating member 33 is formed based on the second axial direction (Y-axis direction). The covering member 34 located on the upper side with respect to the second light collecting member 33 is formed to extend in the lower direction (DD arrow direction) to have a D-shaped shape, so as to cover the side surface of the second light collecting member 33 together. there is.

Accordingly, the optical connector package 1 according to the present invention can achieve the following operational effects.

First, in the optical connector package 1 according to the present invention, the covering member 34 is positioned above the second light collecting member 33 . Therefore, in the optical connector package 1 according to the present invention, since the covering member 34 can cover the second light collecting member 33 from the upper side, the second light collecting member 33 is protected from the outside, thereby transmitting an optical signal. Performance stability can be improved. That is, since the second light-collecting member 33 is formed to protrude from the plug body 30 and thus can be exposed to the outside, the optical connector package 1 according to the present invention is provided through the covering member 34. By covering the second light collecting member 33, it is possible to protect the second light collecting member 33 from the outside and improve the stability of optical signal transmission performance.

Second, in the optical connector package 1 according to the present invention, the covering member 34 is formed to have a length equal to or longer than the length at which the second concentrating member 33 is formed based on the second axis direction (Y axis direction) Accordingly, damage or breakage of the first light collecting member 34 can be prevented. That is, the movable distance of the plug body 30 toward the first direction (the direction of the FD arrow) is limited by the covering member 34, and the covering member 34 moves in the second axial direction (Y-axis direction). ), when the second light collecting member 33 is formed to a shorter length than the formed length based on ), the 34L before the covering member 34 contacts the receptacle body 20, the receptacle body 20 collide with Therefore, in the optical connector package 1 according to the present invention, the covering member 34 is implemented to have a length equal to or longer than that of the second concentrating member 33 based on the second axis direction (Y axis direction), so that the In the process of inserting the plug assembly 3 into the receptacle assembly 2, it is possible to prevent the second light collecting member 33 from colliding with the receptacle body 20 and being damaged or damaged.

Referring to FIG. 1 , the plug body 30 may be longer than the receptacle body 20 in the third axial direction (Z-axis direction). The plug body 30 may be formed to have a length corresponding to the sum of the length of the receptacle body 20 and the length of the substrate 10 based on the third axial direction (Z-axis direction). This is to couple the receptacle body 20 to the substrate 10 and to allow the plug body 30 to be coupled to the receptacle body 20 in an area where the substrate 10 is not formed.

In this case, the substrate 10 may be a sub-PCB, and the optical device 11, the control device 12, and the receptacle assembly 2 coupled to the sub-PCB may be implemented in a module form. Then, the board 10 to which the optical device 11, the control device 12, and the receptacle assembly 2 are coupled is coupled to a main PCB (not shown), and the board 10 is not formed. The optical connector 1 according to the present invention can be implemented by coupling the plug assembly 3 to the receptacle assembly 2 on the main PCB, which is not present.

Accordingly, in the optical connector 1 according to the present invention, the board 10 to which the optical element 11, the control element 12, and the receptacle assembly 2 are coupled is implemented in a module form, so that the user While providing the convenience of mounting and using the module-type board 10 on the desired main PCB, the plug assembly 3 is implemented to be coupled to the module-type board 10 as a separate configuration, It is possible to reduce the process cost by lowering the defect rate of the product.

Although not shown, the optical connector 1 according to the present invention may include an adhesive member for adhering the receptacle assembly 2 to the substrate 10 . The adhesive member is formed on the edge of the substrate 10 to which the receptacle assembly 2 is coupled, so that the receptacle assembly 2 can be adhered to the substrate 10 . The adhesive member may be formed by applying a material such as epoxy to an outer circumference where the receptacle assembly 2 and the substrate 10 are in contact in a state in which the receptacle assembly 2 is coupled to the substrate 10. there is. Therefore, the optical connector 1 according to the present invention firmly couples the receptacle assembly 2 to the board 10 through an adhesive member, so that the receptacle assembly 2 is not easily affected by external forces such as vibration or shaking. movement can be prevented.

Hereinafter, an optical connector 1 according to another embodiment of the present invention will be described in detail with reference to the accompanying drawings. The same reference numerals are assigned to the same components as the optical connector 1 according to an embodiment of the present invention shown in FIGS. 1 to 6, and redundant descriptions of repetitive parts in each configuration or structure are omitted. do it with

Referring to FIGS. 7 and 8 , an optical connector 1 according to another embodiment of the present invention includes an optical element 11 coupled to a substrate 10, a control element 12 coupled to the substrate 10, A receptacle assembly 2 coupled to the substrate 10 to cover the optical element 11 and the control element 12, and a plug assembly 3 coupled to the receptacle assembly 2 may be included. . The substrate 10 may be a printed circuit board.

The plug assembly 3 may be coupled to the receptacle assembly 2 . The plug assembly 3 is coupled to the receptacle assembly 2 by moving in the first direction (direction of arrow FD), and is coupled to the receptacle assembly 2 by moving in the second direction (direction of arrow SD). can be released After the plug assembly 3 is coupled to the receptacle assembly 2, an adhesive member is formed on the edges of the receptacle assembly 2 and the plug assembly 3, so that the receptacle assembly 2 and the plug assembly (3) can be fixed to the substrate.

The plug assembly 3 may include the plug body 30 . An optical transmission cable 100 may be inserted into the plug body 30 . The optical transmission cable 100 is inserted into the plug body 30 along a second axial direction (Y-axis direction) perpendicular to the first axial direction (X-axis direction). A plurality of optical transmission cables 100 may be inserted into the plug body 30 . To this end, the plug assembly 3 may include an insertion groove 30a formed in the plug body 30 into which the optical transmission cable 100 is inserted. The plug body 30 may be formed in a rectangular parallelepiped shape as a whole, but is not limited thereto, and is capable of accommodating a plurality of optical transmission cables 100 and movably coupled to the receptacle assembly 2 in other shapes. may be formed.

In this way, the optical connector 1 according to the present invention implements the receptacle assembly 2 and the plug assembly 3 as separate components, and the plug assembly 3 is coupled to the receptacle assembly 2 to transmit the light. By arranging the cable 100 to the optical element 11, it is possible to prevent an increase in processing cost due to product defects.

For example, according to the comparative example in which the receptacle assembly 2 and the plug assembly 3 are integrally formed, when manufacturing tolerances occur in either of the receptacle assembly 2 and the plug assembly 3, the optical connector 1 itself will be discarded as defective. Specifically, if the optical element 11 is not accommodated in the receptacle assembly 2 at the set position due to manufacturing tolerances or the optical transmission cable 100 is not inserted into the plug assembly 3 at the set position, the optical connector (1) itself is discarded as a defective product. In contrast, the optical connector 1 according to the present invention includes the receptacle assembly 2 and the plug assembly 3 as separate components, and the plug assembly 3 is coupled to the receptacle assembly 2, so that Compared to the comparative example, there is an advantage in that the process cost can be reduced by lowering the defect rate of the product.

In addition, in the optical connector 1 according to another embodiment of the present invention, the plug assembly 3 moves along the first axial direction (X-axis direction) to be coupled to or disengaged from the receptacle assembly 2. As a result, it is possible to implement miniaturization and low profile, so that it can have versatility applicable to miniaturized electronic devices. Specifically, according to the comparative example in which the plug assembly is coupled to the receptacle assembly in an upward direction with respect to the receptacle assembly, since the total height of the optical connector is the sum of the heights of the plug body and the receptacle body, it is difficult to realize miniaturization and low profile of the optical connector. can Accordingly, in the optical connector 1 according to the present invention, since the plug body 30 is coupled to the receptacle body 20 through the coupling member 31, miniaturization and low-profile implementation are possible.

Hereinafter, structures of the receptacle assembly 2 and the plug assembly 3 according to another embodiment of the present invention will be described in detail.

Referring to FIGS. 9 to 12 , the receptacle assembly 2 includes a coupling groove 21 (shown in FIG. 9 ) for fixing the plug assembly 3 . The plug assembly 3 is inserted into the coupling groove 21 and aligned with the optical element 11 .

The receptacle assembly 2 includes a receptacle body 20 in which the coupling groove 21 is formed. The receptacle body 20 supports the plug assembly 3 . The coupling groove 21 may be formed by being recessed to a predetermined depth from the side surface 203 (shown in FIG. 9 ) of the receptacle body 20 . The coupling groove 21 may be formed by being recessed to a certain depth from a side surface facing the second direction (SD arrow direction) of the side surface 203 of the receptacle body 20 . The coupling groove 21 may be formed in a cylindrical shape to have a circular cross section, but is not limited thereto.

When the receptacle assembly 2 includes the coupling groove 21, the plug assembly 3 is inserted into the coupling groove 21 and the coupling member 31 for fixing the plug body 30 (Fig. 11). The coupling member 31 may be formed to protrude from the plug body 30 toward the first direction (the direction of the FD arrow). The coupling member 31 may be formed to protrude from a side surface of the plug body 30 toward the first direction (direction of arrow FD) toward the first direction (direction of arrow FD).

The coupling member 31 may be formed in a shape corresponding to the shape of the coupling groove 21 . For example, the coupling member 31 may be formed in a cylindrical shape having a circular cross section. The coupling member 31 may be inserted into the coupling groove 21 as the plug body 30 moves in the first direction (the direction of the FD arrow). Accordingly, in the optical connector 1 according to the present invention, the plug body 30 is moved in the second axis direction (Y axis direction) and the third axis direction by an external force such as vibration or shaking through the coupling member 31. It can prevent movement in the axial direction (Z-axis direction). Therefore, the optical connector 1 according to the present invention is designed to transmit light between the optical element 11 coupled to the substrate 10 and the optical transmission cable 100 inserted into the plug assembly 3 by an external force such as vibration or shaking. By preventing misalignment, it is possible to improve the stability of optical signal transmission performance. The coupling member 31 can be released from the coupling groove 21 as the plug body 30 moves in the second direction (SD arrow direction).

The receptacle assembly 2 may include a plurality of coupling grooves 21 . The coupling grooves 21 may include first coupling grooves 21a and second coupling grooves 21b respectively formed on the receptacle body 20 to be spaced apart from each other along the first axial direction (X-axis direction). there is. In this case, the plug assembly 3 may include a plurality of coupling members 31 . The coupling members 31 are first coupling members 31a (shown in FIG. 12) and second coupling members (31a, shown in FIG. 12) formed on the plug body 30 so as to be spaced apart from each other along the first axial direction (X-axis direction). 31b, shown in FIG. 12).

The plug assembly 3 may include a support member 32 (shown in FIG. 11). The support member 32 is for supporting the coupling member 31 . The support member 32 may be formed to protrude from the plug body 30 toward a first direction (FD arrow direction, shown in FIG. 4 ). The support member 32 may be formed to have a shorter length than the plug body 30 based on the third axial direction (Z-axis direction).

When the plug assembly 3 includes the support member 32, the receptacle assembly 2 may include a reverse insertion prevention groove 28 (shown in FIG. 9). The reverse insertion prevention groove 28 is for supporting the support member 32 . The reverse insertion prevention groove 28 may be formed by being recessed to a predetermined depth from the side surface 203 of the receptacle body 20 . The reverse insertion prevention groove 28 may be formed by being recessed to a predetermined depth from a side surface facing the second direction (SD arrow direction) of the side surface 203 of the receptacle body 20 . The reverse insertion prevention groove 28 may be formed to communicate with the coupling groove 21 . The support member 32 may be inserted into the reverse insertion prevention groove 28 and supported by the reverse insertion prevention groove 28 . Accordingly, in the optical connector 1 according to another embodiment of the present invention, the plug body 30 is connected to the receptacle body 20 so that the support member 32 can be inserted into the reverse insertion prevention groove 28. By enabling the movement of the plug body 30 only when coupled to the plug body 30, it is possible to prevent the plug body 30 from being reversely inserted into the receptacle body 20.

The plug assembly 3 may include a plurality of support members 32 . The support members 32 include a first support member 32a (shown in FIG. 12) and a second support member 32b (shown in FIG. 12) formed to be spaced apart from each other along the first axial direction (X-axis direction). can include The first support member 32a may be formed on the plug body 30 above the first coupling member 31a. The second support member 32b may be formed on the plug body 30 below the second coupling member 31b.

In this case, the receptacle assembly 2 may include a plurality of reverse insertion prevention grooves 28 . The reverse insertion prevention grooves 28 include a first reverse insertion prevention groove 28a (shown in FIG. 10) and a second reverse insertion prevention groove 28b formed to be spaced apart from each other along the first axial direction (X-axis direction). can include The first reverse insertion prevention groove 28a may be formed in the receptacle body 20 to be positioned in the lower direction (direction of arrow DD) with respect to the first coupling groove 21a (shown in FIG. 10). The first reverse insertion prevention groove 28a may be formed to communicate with the first coupling groove 21a in the lower direction (DD arrow direction) with respect to the first coupling groove 21a (shown in FIG. 10). . The second reverse insertion prevention groove 28b may be formed to communicate with the second coupling groove 21b in the upward direction (direction of arrow UD) with respect to the second coupling groove 21b (shown in FIG. 10). .

The first coupling groove 21a and the second coupling groove 21b are spaced apart from the center (M1, shown in FIG. 10) of the receptacle body 20 based on the first axial direction (X-axis direction). The distances L1 and L2 shown in FIG. 10 may be formed on the receptacle body 20 so that they are different from each other. In this case, the first coupling member 31a and the second coupling member 31b are the center M2 of the plug body 30 based on the first axial direction (X-axis direction), as shown in FIG. ) may be formed on the plug body 30 so that the distances (N1, N2, shown in FIG. 12) are different from each other. Accordingly, the optical connector 1 according to another embodiment of the present invention can prevent the plug body 30 from being reversely inserted into the receptacle body 20 .

Specifically, according to a comparative example in which the first coupling groove and the second coupling groove are formed to be spaced apart from the center of the receptacle body by the same distance with respect to the first axial direction, the plug body is formed in the second axial direction (Y axial direction), it may be inserted into the receptacle body in a state turned over by 180 degrees. Therefore, in the optical connector 1 according to another embodiment of the present invention, the first coupling groove 21a and the second coupling groove 21b are connected to the receptacle body with respect to the first axial direction (X-axis direction). The distance apart from the center M1 of 20 is different, and the first coupling member 31a and the second coupling member 31b are connected to the plug body (with respect to the first axial direction (X-axis direction)) 30) is implemented to have different distances from the center M2, so that the plug body 30 is inserted into the receptacle body 20 when the plug body 30 is turned 180 degrees relative to the second axis direction (Y axis direction). It is possible to improve the stability of the optical signal transmission performance.

Referring to FIGS. 13 and 14 , the receptacle assembly 2 may include a receiving groove 23 formed in the receptacle body 20 .

The accommodating groove 23 is for accommodating the optical element 11 and the control element 12 . The receiving groove 23 is formed on the lower surface 202 of the receptacle body 20 . Accordingly, the receptacle assembly 2 covers the optical element 11 and the control element 12 so that the optical element 11 and the control element 12 are accommodated in the accommodating groove 23. It may be coupled to the substrate 10 . The receptacle assembly 2 may protect the optical device 11 and the control device 12 from the outside. The receptacle assembly 2 may be coupled to the substrate 10 so that the receiving groove 23 is sealed. Accordingly, the receptacle assembly 2 can more stably protect the optical element 11 and the control element 12 from the outside.

Referring to FIG. 14 , the receptacle assembly 2 may include an alignment member 24 (shown in FIG. 14 ).

The alignment member 24 is formed to protrude from the receptacle body 20 . The alignment member 24 may be formed to protrude from the receptacle body 20 in the downward direction (DD arrow direction). The alignment member 24 may be formed to protrude from the lower surface 202 of the receptacle body 20 . The alignment member 24 allows the optical element 11 and the control element 12 to be accommodated in the accommodating groove 23 while the receptacle assembly 2 moves in the downward direction (DD arrow direction). The alignment position of the receptacle body 20 is guided.

That is, the alignment member 24 has a function of guiding optical alignment between the optical element 11 and the plug assembly 3 to be achieved. The receptacle assembly 2 may include a plurality of alignment members 24 . The alignment members 24 may be formed at positions spaced apart from each other in the first axial direction (X-axis direction). The alignment members 24 may be formed at positions spaced apart from each other in the second axial direction (Y-axis direction). The alignment members 24 may have different cross-sectional widths.

When the receptacle assembly 2 includes the alignment member 24, an alignment groove 14 (shown in FIG. 8) may be formed in the substrate 10.

The aligning groove 14 is for inserting the aligning member 24 . The alignment groove 14 may be formed to pass through the substrate 10 . The alignment groove 14 may be formed to pass through the substrate 10 along the third axial direction (Z-axis direction). The receptacle body 20 may be coupled to the substrate 10 such that the alignment member 24 is inserted into the alignment groove 14 . The receptacle assembly 2 moves in the downward direction (direction of the DD arrow) in a state where the receiving groove 23 is located above the optical element 11 and the control element 12, so that the optical element 11 ) and the control element 12 can be accommodated in the receiving groove 21. In this process, the aligning member 24 may be inserted into the aligning groove 14 .

Accordingly, the optical connector 1 according to the present invention can achieve the following operational effects.

First, in the optical connector 1 according to the present invention, as the receptacle assembly 2 is coupled to the substrate 10 so that the aligning member 24 is inserted into the aligning groove 14, the optical element 11 And the control element 12 may be accommodated in the receiving groove 23 . Therefore, the optical connector 1 according to the present invention can protect the optical element 11 and the control element 12 from the outside by being accommodated in the sealed receiving groove 23 on the substrate 10 .

Second, the optical connector 1 according to the present invention can prevent the receptacle assembly 2 aligned with the optical element 11 from moving. Therefore, the optical connector 1 according to the present invention prevents the optical alignment between the optical element 11 and the receptacle assembly 2 from being misaligned due to external forces such as vibration and shaking, thereby providing stability in optical signal transmission performance. can improve

Third, in the optical connector 1 according to the present invention, the optical element 1 and the alignment groove 14 may be formed on the same plane. For example, in the optical connector 1 according to the present invention, both the optical element 1 and the alignment groove 14 may be formed on the X-Y plane. Therefore, since the optical device 11 can be coupled to the substrate 10 based on the position where the alignment groove 14 is formed, the optical alignment between the optical device 11 and the receptacle assembly 2 Accuracy can be improved.

Referring to FIG. 13 , the receptacle assembly 2 may include an inclined member 25 (shown in FIG. 13).

The inclined member 25 is for changing the propagation direction of the optical signal through the optical element 11 or the optical transmission cable 100 . That is, in the optical connector 1 according to the present invention, the optical element 11 is formed to face the upper direction (UD arrow direction) from the substrate 10, and the optical transmission cable 100 is formed to the second axis. Since it is inserted into the insertion groove 30a along the direction (Y-axis direction), the traveling direction of the optical signal through the optical element 11 and the traveling direction of the optical signal through the optical transmission cable 100 are not parallel. will not be The inclined member 25 changes the traveling direction of the optical signal through the optical device 11 toward the optical transmission cable 100 or changes the traveling direction of the optical signal through the optical transmission cable 100 to the optical device 11 ), the optical signal through the optical element 11 and the optical signal through the optical transmission cable 100 are aligned. The inclined member 25 may be formed in the receptacle body 20 to be positioned in the first direction (direction of an arrow FD) with respect to the insertion groove 30a into which the optical transmission cable 10 is inserted. The inclined member 25 may be formed on the receptacle body 20 to be positioned at the same position as the optical element 11 based on the X-Y plane. That is, the inclined member 25 is located in the upward direction (direction of arrow UD) with respect to the optical element 11 .

The inclined member 25 may be inclined so as to decrease in height toward the first direction (the direction indicated by the FD arrow). An included angle between the inclined member 25 and the lower surface 202 of the receptacle body 20 may form an acute angle. Since the optical signal passing through the optical device 11 is directed in the upward direction (direction of the UD arrow) and the optical signal passing through the optical transmission cable 100 is directed in the first direction (direction of the FD arrow), each optical signal forms The angle forms 90 degrees. Accordingly, an included angle between the inclined member 25 and the lower surface 202 of the receptacle body 20 may be 45°.

The inclined member 25 may reflect an optical signal transmitted from the optical device 11 or an optical signal transmitted from the optical transmission cable 100 . To this end, the receptacle body 20 may be formed of a material capable of totally reflecting an optical signal transmitted from the optical device 11 or an optical signal transmitted from the optical transmission cable 100 by the inclined member 25. there is. Total reflection refers to a phenomenon in which all optical signals are reflected at the interface between the media when the incident angle is greater than a critical angle when an optical signal travels from a medium having a high refractive index to a medium having a low refractive index.

As shown in FIG. 13, in the optical connector 1 according to the present invention, a groove is formed in the first direction (direction of the FD arrow) with respect to the inclined member 25 so that outside air can be located. The receptacle body 20 may be positioned in the second direction (SD arrow direction, shown in FIG. 13 ) based on the inclined member 25 . The second direction (direction of arrow SD) is opposite to the first direction (direction of arrow FD). Therefore, in the optical connector 1 according to the present invention, the receptacle body 20 is made of a material having a refractive index such that light directed to the inclined member 25 is totally reflected at the boundary between the inclined member 25 and the outside air. can form For example, since the inclined member 25 may be formed at an angle of 45° with respect to the bottom surface 202 of the receptacle body 20, the optical signal transmitted from the optical element 11 or the optical transmission cable 100 The incident angle at which the optical signal transmitted from the light signal is incident on the inclined member 25 is 45°. Therefore, in the optical connector 1 according to the present invention, the receptacle body 20 is formed of a material having a critical angle of less than 45° in consideration of the refractive index of external air, so that all optical signals can be reflected by the inclined member 25. there is.

However, since the present invention is not limited thereto, the inclined member 25 may be formed in a form in which a material capable of reflecting an optical signal is coupled to an inclined surface.

Referring to FIGS. 13 and 14 , the receptacle assembly 2 may include a first light collecting member 26 (shown in FIG. 13 ).

The first condensing member 26 is for condensing an optical signal passing through the optical transmission cable 100 or the optical element 11 . The first light collecting member 26 may be formed on the receptacle body 20 in a convex shape toward the optical element 11 within the receiving groove 23 . The first light collecting member 26 may be formed on the receptacle body 20 so as to be positioned in the upward direction (direction of arrow UD) with respect to the optical element 11 . The first concentrating member 26 is formed in a spherical shape or an aspherical shape, and can collect optical signals passing through the optical transmission cable 100 or the optical element 11 . The first light collecting member 26 is positioned between the optical element 11 accommodated in the receiving groove 23 and the receptacle body 20, so that the light passes through the optical transmission cable 100 and the optical element 11. signal can pass through.

The receptacle assembly 2 is formed so that the central axis of the first light collecting member 26 and the central axis of the optical element 11 are positioned within a predetermined range, so that the optical element 11 and the first light collecting member (26) can implement optical alignment and improve the stability of optical signal transmission performance. The predetermined range means a range in which a target light transmission efficiency can be achieved through the optical alignment of the optical element 11 and the first light collecting member 26, and the type of electronic device to which the optical connector is applied and It may be set differently by reflecting manufacturing tolerances and the like.

Accordingly, the optical connector 1 according to the present invention can achieve the following operational effects.

The optical connector 1 according to the present invention aligns the optical device 11 and the first light concentrating member 26 in a passive optical alignment method. Specifically, the optical alignment method can be divided into an active optical alignment method and a passive optical alignment method. It is to search and find the point or state that produces transmission efficiency, and maintain the components that transmit or receive the optical signal at that point or state. That is, in the active optical alignment method, transmission efficiency is measured using measuring equipment such as a spectrum analyzer for an optical signal generated from an optical element, etc., and a state in which the transmission efficiency satisfies a predetermined condition is searched for and based on the searched state. Thus, the optical element or the like must be sequentially fixed to the determined position. As a result, when aligning the optical element and the second light concentrating member using the active light alignment method, there is a problem in that it takes a lot of time and money.

Therefore, in the optical connector 1 according to the present invention, as the aligning member 24 is inserted into the aligning groove 14, the first light collecting member 26 can be aligned with the optical element 11, In this way, since the optical element 11 and the first light concentrating member 26 are aligned in the passive optical alignment method, overall process time and manufacturing cost can be reduced.

Referring to FIGS. 1 to 14 , the plug assembly 3 may include a second light collecting member 33 (shown in FIG. 12 ).

The second concentrating member 33 is for condensing an optical signal passing through the optical transmission cable 100 or the optical element 11 . The second light collecting member 33 may be formed to be convex from the plug body 30 toward the first direction (direction of arrow FD). The second light collecting member 33 may be formed convexly toward the first direction (direction of arrow FD) from a side surface of the plug body 30 facing toward the first direction (direction of arrow FD). The second light collecting member 33 is positioned between the optical transmission cable 100 inserted into the insertion groove 30a and the receptacle body 20, so that light passes through the optical transmission cable 100 and the optical element 11. signal can pass through.

The plug assembly 3 is formed such that the central axis of the second light collecting member 33 is located within a predetermined range from the central axis of the insertion groove 30a into which the optical transmission cable 100 is inserted, so that the optical transmission cable 100 is inserted. It is possible to realize optical alignment between the 100 and the second light collecting member 33 and improve the stability of optical signal transmission performance. The predetermined range means a range in which a target optical transmission efficiency can be achieved through optical alignment of the optical transmission cable 100 and the second light collecting member 33, and the type of electronic device to which the optical connector is applied and It may be set differently by reflecting manufacturing tolerances and the like.

The second light collecting member 33 may be formed in a spherical surface shape or an aspherical surface shape. As described above, the optical connector 1 according to the present invention is formed so that the central axis of the second light collecting member 33 is located within a predetermined range from the central axis of the insertion groove 30a, so that the optical transmission cable ( 100) and the second light collecting member 33 are realized. In particular, when the central axis of the second concentrating member 33 can be manufactured within a predetermined range from the central axis of the insertion groove 30a, it is advantageous to form the second concentrating member 33 in an aspheric shape. It is effective in reducing signal loss, and when the central axis of the second light collecting member 33 is out of a predetermined range from the central axis of the insertion groove 30a due to manufacturing tolerance, the second light collecting member 33 is formed in a hemispherical shape. It is effective to reduce the optical signal loss due to the error of the central axis.

Accordingly, the optical connector 1 according to the present invention can achieve the following operational effects.

First, in the optical connector 1 according to the present invention, the optical transmission cable 100 and the second light collecting member 33 are aligned in a passive optical alignment method. Specifically, the optical alignment method can be divided into an active optical alignment method and a passive optical alignment method. It is to search and find the point or state that produces transmission efficiency, and maintain the components that transmit or receive the optical signal at that point or state. That is, in the active optical alignment method, transmission efficiency is measured using measuring equipment such as a spectrum analyzer for an optical signal generated from an optical transmission cable, etc., and a state in which the transmission efficiency satisfies a predetermined condition is searched and based on the searched state Therefore, the optical transmission cables and the like must be sequentially fixed to the determined positions. As a result, when aligning the optical transmission cable and the second light concentrating member using the active optical alignment method, there is a problem in that it takes a lot of time and money.

Therefore, in the optical connector 1 according to the present invention, the optical transmission cable 100 and the second light collecting member 33 are aligned in a passive optical alignment method, thereby reducing overall process time and manufacturing cost.

Second, the optical connector 1 according to the present invention collects the optical signal passing through the optical element 11 or the optical transmission cable 100 through the second concentrating member 33 formed in a spherical or aspherical shape, Even when the optical element 11 or the optical transmission cable 100 is misaligned, optical transmission efficiency can be maintained. In particular, in the optical connector 1 according to the present invention, the second light collecting member 33 is formed of a spherical lens or an aspheric lens in consideration of manufacturing tolerances of equipment to be manufactured, thereby minimizing optical signal loss and improving optical signal transmission efficiency. can increase

The plug assembly 3 may include a plurality of second light collecting members 33 . The second light collecting members 33 may be formed on the plug body 30 at positions spaced apart from each other in the first axial direction (X-axis direction). The plug assembly 3 may include the same number of second light collecting members 33 as the optical transmission cable 100 .

Referring to FIGS. 1 to 13 , the plug assembly 3 may include a covering member 34 (shown in FIG. 13 ).

The covering member 34 is formed to protrude from the plug body 30 . The covering member 34 may be formed to protrude from the plug body 30 toward the first direction (the direction of the FD arrow). The covering member 34 may be formed on the plug body 30 to be positioned above the second light collecting member 33 based on the third axial direction (Z-axis direction). The covering member 34 may be formed on the plug body 30 to have a length equal to or longer than the length at which the second concentrating member 33 is formed based on the second axial direction (Y-axis direction). The covering member 34 located on the upper side with respect to the second light collecting member 33 is formed to extend in the lower direction (DD arrow direction) to have a D-shaped shape, so as to cover the side surface of the second light collecting member 33 together. there is.

Accordingly, the optical connector package 1 according to the present invention can achieve the following operational effects.

First, in the optical connector package 1 according to the present invention, the covering member 34 is positioned above the second light collecting member 33 . Therefore, in the optical connector package 1 according to the present invention, since the covering member 34 can cover the second light collecting member 33 from the upper side, the second light collecting member 33 is protected from the outside, thereby transmitting an optical signal. Performance stability can be improved. That is, since the second light-collecting member 33 is formed to protrude from the plug body 30 and thus can be exposed to the outside, the optical connector package 1 according to the present invention is provided through the covering member 34. By covering the second light collecting member 33, it is possible to protect the second light collecting member 33 from the outside and improve the stability of optical signal transmission performance.

Second, in the optical connector package 1 according to the present invention, the covering member 34 is formed to have a length equal to or longer than the length at which the second concentrating member 33 is formed based on the second axis direction (Y axis direction) Accordingly, damage or breakage of the first light collecting member 34 can be prevented. That is, the movable distance of the plug body 30 toward the first direction (the direction of the FD arrow) is limited by the covering member 34, and the covering member 34 moves in the second axial direction (Y-axis direction). ), when the second light collecting member 33 is formed to a shorter length than the formed length based on ), the 34L before the covering member 34 contacts the receptacle body 20, the receptacle body 20 collide with Therefore, in the optical connector package 1 according to the present invention, the covering member 34 is implemented to have a length equal to or longer than that of the second concentrating member 33 based on the second axis direction (Y axis direction), so that the In the process of inserting the plug assembly 3 into the receptacle assembly 2, it is possible to prevent the second light collecting member 33 from colliding with the receptacle body 20 and being damaged or damaged.

Referring to FIG. 7 , the plug body 30 may be longer than the receptacle body 20 in the third axial direction (Z-axis direction). The plug body 30 may be formed to have a length corresponding to the sum of the length of the receptacle body 20 and the length of the substrate 10 based on the third axial direction (Z-axis direction). This is to couple the receptacle body 20 to the substrate 10 and to couple the plug body 30 to the receptacle body 20 in an area where the substrate 10 is not formed.

In this case, the substrate 10 may be a sub-PCB, and the optical device 11, the control device 12, and the receptacle assembly 2 coupled to the sub-PCB may be implemented in a module form. Then, the board 10 to which the optical device 11, the control device 12, and the receptacle assembly 2 are coupled is coupled to a main PCB (not shown), and the board 10 is not formed. The optical connector 1 according to the present invention can be implemented by coupling the plug assembly 3 to the receptacle assembly 2 on the main PCB, which is not present.

Accordingly, in the optical connector 1 according to the present invention, the board 10 to which the optical element 11, the control element 12, and the receptacle assembly 2 are coupled is implemented in a module form, so that the user While providing the convenience of mounting and using the module-type board 10 on the desired main PCB, the plug assembly 3 is implemented to be coupled to the module-type board 10 as a separate configuration, It is possible to reduce the process cost by lowering the defect rate of the product.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and it is common in the technical field to which the present invention belongs that various substitutions, modifications, and changes are possible without departing from the technical spirit of the present invention. It will be clear to those who have knowledge of

1: optical connector 2: receptacle assembly
3: plug assembly 11: optical element
12: control element 14: alignment groove
20: receptacle body 21: coupling groove
22: support groove 23: storage groove
24: alignment member 25: inclined member
26: first light collecting member 28: reverse insertion prevention groove
30: plug body 30a: insertion groove
31: coupling member 32: support member
33: second light collecting member 34: covering member

Claims (15)

An optical element 11 coupled to one surface of the substrate 10;
a control element 12 coupled to one surface of the substrate 10 at a position spaced apart from the optical element 11;
a receptacle assembly (2) coupled to the substrate (10) to cover the optical element (11) and the control element (12); and
A plug assembly 3 coupled to the receptacle assembly 2 so that the optical transmission cable 100 stored therein can be aligned with the optical element 11,
The receptacle assembly 2 includes a receptacle body 20 that forms an airtight space with the substrate 10 and accommodates the optical device 11 and the control device 12 in the airtight space, and the receptacle body 20. Includes a coupling groove 21 formed in (20),
The plug assembly 3 includes a plug body 30 into which the optical transmission cable 100 is inserted, and a coupling member 31 formed to protrude downward from the plug body 30 (in the direction of the DD arrow),
The coupling member 31 is inserted into the coupling groove 21 as the plug body 30 moves in the downward direction (DD arrow direction) to fix the plug body 30,
The plug assembly 3 further includes a support member 32 extending from the upper surface 301 of the plug body 30 toward a first direction (the direction of the FD arrow),
The receptacle assembly 2 further includes a support groove 22 formed to be depressed from the upper surface 201 of the receptacle body 20 toward the lower direction (DD arrow direction) to support the support member 32, ,
The coupling groove 21 is formed to communicate with the support groove 22 in the lower direction (DD arrow direction) with respect to the support groove 22,
The optical connector, characterized in that the coupling member (31) is formed to protrude from the support member (32) toward the lower direction (DD arrow direction) and is inserted into the coupling groove (21). delete According to claim 1,
The plug assembly 3 further includes a support groove 30a formed in the plug body 30 into which the optical transmission cable 100 is inserted,
The optical element 11 is coupled to the substrate 10 so that the traveling direction of the optical signal through the optical element 11 is parallel to the normal direction of the substrate 10,
The support groove (30a) is an optical connector, characterized in that formed so that the traveling direction of the optical signal through the optical transmission cable (100) is perpendicular to the normal direction of the substrate (10). According to claim 3,
The receptacle assembly 2 further includes an inclined member 25 formed on the receptacle body 20 to change the traveling direction of the optical signal through the optical transmission cable 100 or the optical element 11,
The inclined member 25 is located in the first direction (FD arrow direction) with respect to the optical transmission cable 100 and is formed to form a predetermined angle with the bottom surface 202 of the receptacle body 20 Optical connector, characterized in that . According to claim 1 or 4,
The receptacle assembly 2 includes a plurality of coupling grooves 21,
The coupling grooves 21 include a first coupling groove 21a and a second coupling groove 21b disposed to be spaced apart from each other along a first axial direction (X-axis direction),
The plug assembly 3 includes a plurality of coupling members 31,
The coupling members 31 include a first coupling member 31a and a second coupling member 31b disposed to be spaced apart from each other along the first axial direction (X-axis direction),
The optical element 11 and the optical transmission cable 100 are disposed between the coupling grooves 21 and the coupling members 31 based on the first axis direction (X-axis direction) optical connector. According to claim 5,
The inclined member 25 is located between the first coupling groove 21a and the second coupling groove 21b based on the first axial direction (X-axis direction), and is located in the first axial direction (X-axis direction). The optical connector, characterized in that located so as to overlap the first coupling groove (21a) and the second coupling groove (21b) based on the second axis direction (Y-axis direction) perpendicular to the ). An optical element 11 coupled to one surface of the substrate 10;
a control element 12 coupled to one surface of the substrate 10 at a position spaced apart from the optical element 11;
a receptacle assembly (2) coupled to the substrate (10) to cover the optical element (11) and the control element (12); and
A plug assembly 3 coupled to the receptacle assembly 2 so that the optical transmission cable 100 stored therein can be aligned with the optical element 11,
The receptacle assembly 2 includes a receptacle body 20 that forms an airtight space with the substrate 10 and accommodates the optical device 11 and the control device 12 in the airtight space, and the receptacle body 20. Includes a coupling groove 21 formed in (20),
The plug assembly 3 includes a plug body 30 into which the optical transmission cable 100 is inserted, and a coupling member 31 formed to protrude from the plug body 30 in a first direction (in the direction of the FD arrow), ,
The coupling groove 21 is formed on a side surface of the receptacle body 20 disposed toward the plug body 30,
The coupling member 31 is inserted into the coupling groove 21 as the plug body 30 moves toward the first direction (the direction of the FD arrow) to fix the plug body 30,
The receptacle assembly 2 includes a plurality of coupling grooves 21,
The coupling grooves 21 include a first coupling groove 21a and a second coupling groove 21b disposed to be spaced apart from each other along a first axial direction (X-axis direction),
The plug assembly 3 includes a plurality of coupling members 31,
The coupling members 31 include a first coupling member 31a and a second coupling member 31b disposed to be spaced apart from each other along the first axial direction (X-axis direction),
The optical element 11 and the optical transmission cable 100 are disposed between the coupling grooves 21 and the coupling members 31 based on the first axis direction (X-axis direction),
The receptacle assembly 2,
a first reverse insertion prevention groove 28a formed at a lower side of the first coupling groove 21a; and
The optical connector characterized in that it further comprises a second reverse insertion prevention groove (28b) formed on the upper side with respect to the second coupling groove (21b). delete delete According to claim 7,
The first coupling member 31a and the second coupling member 31b are respectively disposed on the plug body 30 at positions corresponding to the second coupling groove 21b and the first coupling groove 21a. become,
The plug assembly 3 includes a first support member 32a formed to protrude from the plug body 30 at an upper side of the first coupling member 31a; and
The second coupling member 31b further includes a second support member 32b formed to protrude from the plug body 30 at the lower side of the second coupling member 31b,
The first support member 32a is inserted into the second reverse insertion prevention groove 28b as the first coupling member 31a is inserted into the second coupling groove 21b,
The second support member (32b) is inserted into the first reverse insertion prevention groove (28a) as the second coupling member (31b) is inserted into the first coupling groove (21a). According to claim 7,
The first coupling groove 21a and the second coupling groove 21b have different distances from the center of the receptacle body 20 based on the first axial direction (X-axis direction). (20), respectively,
The first coupling member 31a and the second coupling member 31b have different distances from the center of the plug body 30 based on the first axial direction (X-axis direction). An optical connector characterized in that each is formed in (30). According to claim 7,
The plug assembly 3 further includes a support groove 30a formed in the plug body 30 into which the optical transmission cable 100 is inserted,
The optical element 11 is coupled to the substrate so that the traveling direction of the optical signal through the optical element 11 is parallel to the normal direction of the substrate,
The optical connector according to claim 1 , wherein the support groove (30a) is formed so that the traveling direction of the optical signal through the optical transmission cable (100) is perpendicular to the normal direction of the board. According to claim 12,
The receptacle assembly 2 further includes an inclined member 25 formed on the receptacle body 20 to change the traveling direction of the optical signal through the optical transmission cable 100 or the optical element 11,
The inclined member 25 is located in the first direction (FD arrow direction) with respect to the optical transmission cable 100 and is formed to form a predetermined angle with the bottom surface 202 of the receptacle body 20 Optical connector, characterized in that . The method of claim 4 or 13,
The inclined member 25 changes the traveling direction of the optical signal through the optical transmission cable 100 toward the optical device 11 or changes the traveling direction of the optical signal through the optical device 11 to the optical transmission In order to change to the direction toward the cable 100, it is located in the upper direction (UD arrow direction) with respect to the optical element 11 and is formed so that the height decreases toward the first direction (FD arrow direction). Characterized in that optical connector. According to claim 1 or 7,
The receptacle assembly 2 further includes a receiving groove 23 formed on the bottom surface 202 of the receptacle body 20 to form an airtight space with the substrate 10,
The optical connector characterized in that the receptacle body (20) is coupled to the substrate (10) so that the optical element (11) and the control element (12) are inserted into the receiving groove (23).

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