WO2023216523A1

WO2023216523A1 - Optical module

Info

Publication number: WO2023216523A1
Application number: PCT/CN2022/128660
Authority: WO
Inventors: 葛君; 陈金磊; 夏争辉
Original assignee: 青岛海信宽带多媒体技术有限公司
Priority date: 2022-05-13
Filing date: 2022-10-31
Publication date: 2023-11-16

Abstract

An optical module, comprising a circuit board (300), an optical assembly electrically connected to the circuit board (300), and an optical fiber adapter (600) connected to the optical assembly by means of an optical fiber ribbon. The optical fiber adapter (600) comprises a clamping jaw (610), an optical fiber plug (620), a contact pin (640) and a fixing member (630). A penetrating light through hole is provided in the clamping jaw (610), and a reverse insertion boss (6120) is provided on the inner wall of one end of the light through hole. One end of the optical fiber plug (620) is inserted into the other end of the light through hole, and the optical fiber ribbon is fixed at the other end of the optical fiber plug (620). One end of the fixing member (630) is in contact with the end face of the optical fiber plug (620), and the other end thereof is clamped and fixed to the clamping jaw (610). The fixing member (630) is provided with a first through hole (6330) and a second through hole (6340) communicated with each other. The contact pin (640) comprises an exposure part (6410), a connection part (6420), and an insertion part (6430). The insertion part (6430) is smaller than the first through hole (6330) and is greater than the diameter size of the second through hole (6340), and the insertion part (6430) is inserted into the optical fiber plug (620). The connection part (6420) is smaller than the diameter size of the second through hole (6340), and the connection part (6420) is clamped in the second through hole (6340).

Description

Optical module

Cross-references to related applications

This disclosure request is submitted to the China Patent Office on May 13, 2022, with the application number 202210524765. Office, application number 202221157295.X, the entire content of which is incorporated into this disclosure by reference.

Technical field

The present disclosure relates to the field of optical communication technology, and in particular, to an optical module.

Background technique

With the development of new services and application models such as cloud computing, mobile Internet, and video, the development and progress of optical communication technology has become increasingly important. In optical communication technology, optical modules are tools for realizing mutual conversion of optical and electrical signals. They are one of the key components in optical communication equipment. With the development of optical communication technology, the transmission rate of optical modules continues to increase.

Contents of the invention

In a first aspect, the present disclosure provides an optical module, including: a circuit board; an optical component electrically connected to the circuit board and configured to transmit and/or receive optical signals; and an optical fiber adapter connected to the optical fiber through an optical fiber ribbon. Component connection; wherein, the optical fiber adapter includes: a claw, which is provided with a penetrating light hole, and a reverse insertion boss is provided on the inner wall of one end of the light hole; an optical fiber plug, with the optical fiber ribbon fixed at one end, and the other end is provided with a reverse insertion boss; One end is inserted into the other end of the light hole; a penetrating pin hole is provided on it; a fixing member has one end in contact with the end face of the optical fiber plug, and the other end is clamped and fixed with the claw; and a fixing member is provided on it. The first through hole and the second through hole are connected, and the first through hole is larger than the diameter of the second through hole; the pin includes an exposed part, a connecting part and an insertion part, and the exposed part is connected through the connecting part. The insertion part is connected to the insertion part; the diameter of the insertion part is smaller than the diameter of the first through hole and larger than the diameter of the second through hole, and the insertion part is inserted into the pin hole; The diameter of the connecting part is smaller than the diameter of the second through hole, and the connecting part is fixed in the second through hole.

In a second aspect, the present disclosure provides an optical module, including: a circuit board; an optical component electrically connected to the circuit board and configured to transmit and/or receive optical signals; and an optical fiber adapter connected to the optical fiber through an optical fiber ribbon. Component connection; wherein, the optical fiber adapter includes: a claw, including a claw body, a penetrating light hole is provided in the claw body, and a reverse insertion boss and a reverse insertion boss are provided on the inner wall of one end of the light hole. Installation grooves, the reverse insertion bosses and the installation grooves are relatively staggered; a slot is provided on the opposite side of the claw body, and a first elastic buckle is provided in the slot; the clamp An end of the claw body facing away from the first elastic buckle is provided with a second elastic buckle; an optical fiber plug has the optical fiber ribbon fixed at one end, and the other end is inserted into the other end of the light hole, and its end surface is in contact with the third elastic buckle. Two elastic buckles are snap-fastened.

In a third aspect, the present disclosure provides an optical module, including: a circuit board; an optical component electrically connected to the circuit board and configured to transmit and/or receive optical signals; and an optical fiber adapter connected to the optical fiber through an optical fiber ribbon. Component connection; wherein, the optical fiber adapter includes: a claw, which is provided with a penetrating light hole, and one end of the light hole is provided with a second elastic buckle; an optical fiber plug, with the optical fiber ribbon fixed at one end and the other end Insert into the light hole; a penetrating pin hole is provided on it; a fixing member, one end of which is in contact with the end face of the optical fiber plug, and the other end is snap-fastened and fixed with the second elastic buckle; a fixing member is provided on it. The first through hole and the second through hole are connected, and the first through hole is larger than the diameter of the second through hole; the pin includes an exposed part, a connecting part and an insertion part, and the exposed part is connected through the connecting part. The insertion part is connected to the insertion part; the diameter of the insertion part is smaller than the diameter of the first through hole and larger than the diameter of the second through hole, and the insertion part passes through the first through hole. Insert into the pin hole; the diameter of the connecting part is smaller than the diameter of the second through hole, and the connecting part is fixed in the second through hole.

Description of the drawings

In order to explain the technical solutions in the present disclosure more clearly, the drawings required to be used in some embodiments of the present disclosure will be briefly introduced below. Obviously, the drawings in the following description are only appendices of some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings. In addition, the drawings in the following description can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of the present disclosure.

Figure 1 is a connection diagram of an optical communication system according to some embodiments;

Figure 2 is a structural diagram of an optical network terminal according to some embodiments;

Figure 3 is a connection diagram of a data center switch according to some embodiments;

Figure 4 is a structural diagram of an optical module according to some embodiments;

Figure 5 is an exploded view of an optical module according to some embodiments;

Figure 6 is a schematic assembly diagram of a circuit board, optical components, fiber optic adapters and fiber optic plugs in an optical module according to some embodiments;

Figure 7 is a schematic structural diagram of an optical fiber adapter in an optical module according to some embodiments;

Figure 8 is a schematic structural diagram of a claw in an optical module according to some embodiments;

Figure 9 is a cross-sectional view of a claw in an optical module according to some embodiments;

Figure 10 is a schematic structural diagram of an external optical fiber in an optical module according to some embodiments;

Figure 11 is an exploded cross-sectional view of an external optical fiber and an optical fiber adapter in an optical module according to some embodiments;

Figure 12 is an exploded schematic diagram of an optical fiber adapter in an optical module according to some embodiments;

Figure 13 is a schematic structural diagram of a claw in an optical module from another angle according to some embodiments;

Figure 14 is a schematic structural diagram of an optical fiber plug in an optical module according to some embodiments;

Figure 15 is a schematic structural diagram of a fixing member in an optical module according to some embodiments;

Figure 16 is a schematic structural diagram of pins in an optical module according to some embodiments;

Figure 17 is a schematic assembly diagram of claws, optical fiber plugs, fixings and pins in an optical module according to some embodiments;

Figure 18 is a cross-sectional view of a fiber optic adapter in an optical module according to some embodiments;

Figure 19 is a cross-sectional view of an optical fiber adapter in an optical module from another angle according to some embodiments.

Detailed ways

The technical solutions in some embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments provided by this disclosure, all other embodiments obtained by those of ordinary skill in the art fall within the scope of protection of this disclosure.

Unless the context otherwise requires, throughout the specification and claims, the term "comprise" and other forms such as the third person singular "comprises" and the present participle "comprising" are to be construed It means open and inclusive, which means "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific "example" or "some examples" and the like are intended to indicate that a particular feature, structure, material or characteristic associated with the embodiment or example is included in at least one embodiment or example of the present disclosure. The schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be included in any suitable manner in any one or more embodiments or examples.

Hereinafter, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or more.

In describing some embodiments, expressions "coupled" and "connected" and their derivatives may be used. For example, some embodiments may be described using the term "connected" to indicate that two or more components are in direct physical or electrical contact with each other. As another example, the term "coupled" may be used when describing some embodiments to indicate that two or more components are in direct physical or electrical contact. However, the terms "coupled" or "communicatively coupled" may also refer to two or more components that are not in direct contact with each other but still cooperate or interact with each other. The embodiments disclosed herein are not necessarily limited by the content herein.

"At least one of A, B and C" has the same meaning as "at least one of A, B or C" and includes the following combinations of A, B and C: A only, B only, C only, A and B The combination of A and C, the combination of B and C, and the combination of A, B and C.

"A and/or B" includes the following three combinations: A only, B only, and a combination of A and B.

The use of "configured to" in this document implies open and inclusive language that does not exclude devices that are configured to perform additional tasks or steps.

As used herein, "about," "approximately," or "approximately" includes the stated value as well as an average within an acceptable range of deviations from the particular value, as determined by one of ordinary skill in the art. Determined taking into account the measurement in question and the errors associated with the measurement of the specific quantity (i.e., the limitations of the measurement system).

In optical communication technology, light is used to carry information to be transmitted, and the optical signal carrying the information is transmitted to information processing equipment such as computers through information transmission equipment such as optical fibers or optical waveguides to complete the transmission of information. Since optical signals have passive transmission characteristics when transmitted through optical fibers or optical waveguides, low-cost, low-loss information transmission can be achieved. In addition, the signals transmitted by information transmission equipment such as optical fibers or optical waveguides are optical signals, while the signals that can be recognized and processed by computers and other information processing equipment are electrical signals. Therefore, in order to distinguish between information transmission equipment such as optical fibers or optical waveguides and computers and other information processing equipment To establish an information connection between them, it is necessary to realize the mutual conversion of electrical signals and optical signals.

Optical modules realize the mutual conversion function of the above-mentioned optical signals and electrical signals in the field of optical fiber communication technology. The optical module includes an optical port and an electrical port. The optical module realizes optical communication with information transmission equipment such as optical fiber or optical waveguide through the optical port, and realizes the electrical connection with the optical network terminal (for example, optical modem) through the electrical port. The electrical connection It is mainly configured to realize power supply, I2C signal transmission, data signal transmission, grounding, etc.; the optical network terminal transmits electrical signals to computers and other information processing equipment through network cables or wireless fidelity technology (Wi-Fi).

Figure 1 is a connection diagram of an optical communication system according to some embodiments. As shown in Figure 1, the optical communication system mainly includes a remote server 1000, local information processing equipment 2000, optical network terminal 100, optical module 200, optical fiber 101 and network cable 103;

One end of the optical fiber 101 is connected to the remote server 1000, and the other end is connected to the optical network terminal 100 through the optical module 200. The optical fiber itself can support long-distance signal transmission, such as signal transmission of thousands of meters (6 kilometers to 8 kilometers). On this basis, if repeaters are used, ultra-long-distance transmission can theoretically be achieved. Therefore, in a common optical communication system, the distance between the remote server 1000 and the optical network terminal 100 can usually reach several kilometers, tens of kilometers, or hundreds of kilometers.

One end of the network cable 103 is connected to the local information processing device 2000, and the other end is connected to the optical network terminal 100. The local information processing device 2000 can be any one or more of the following devices: router, switch, computer, mobile phone, tablet computer, television, etc.

The physical distance between the remote server 1000 and the optical network terminal 100 is greater than the physical distance between the local information processing device 2000 and the optical network terminal 100 . The connection between the local information processing device 2000 and the remote server 1000 is completed by the optical fiber 101 and the network cable 103; and the connection between the optical fiber 101 and the network cable 103 is completed by the optical module 200 and the optical network terminal 100.

The optical module 200 includes an optical port and an electrical port. The optical port is configured to be connected to the optical fiber 101, so that the optical module 200 and the optical fiber 101 establish a bidirectional optical signal connection; the electrical port is configured to be connected to the optical network terminal 100, so that the optical module 200 and the optical network terminal 100 establish a bidirectional connection. electrical signal connection. The optical module 200 realizes mutual conversion between optical signals and electrical signals, thereby establishing a connection between the optical fiber 101 and the optical network terminal 100 . For example, the optical signal from the optical fiber 101 is converted into an electrical signal by the optical module 200 and then input into the optical network terminal 100. The electrical signal from the optical network terminal 100 is converted into an optical signal by the optical module 200 and input into the optical fiber 101.

The optical network terminal 100 includes a substantially rectangular parallelepiped housing, and an optical module interface 102 and a network cable interface 104 provided on the housing. The optical module interface 102 is configured to access the optical module 200, so that the optical network terminal 100 and the optical module 200 establish a bidirectional electrical signal connection; the network cable interface 104 is configured to access the network cable 103, so that the optical network terminal 100 and the network cable 103 Establish a two-way electrical signal connection. The optical module 200 and the network cable 103 are connected through the optical network terminal 100 . For example, the optical network terminal 100 transmits the electrical signal from the optical module 200 to the network cable 103, and transmits the signal from the network cable 103 to the optical module 200. Therefore, the optical network terminal 100 serves as the host computer of the optical module 200 and can monitor the optical module 200. work. In addition to the optical network terminal 100, the host computer of the optical module 200 may also include an optical line terminal (Optical Line Terminal, OLT), etc.

The remote server 1000 establishes a bidirectional signal transmission channel with the local information processing device 2000 through the optical fiber 101, the optical module 200, the optical network terminal 100 and the network cable 103.

Figure 2 is a structural diagram of an optical network terminal according to some embodiments. In order to clearly show the connection relationship between the optical module 200 and the optical network terminal 100, Figure 2 only shows the parts of the optical network terminal 100 related to the optical module 200. structure. As shown in Figure 2, the optical network terminal 100 also includes a PCB circuit board 105 provided in the housing, a cage 106 provided on the surface of the PCB circuit board 105, and an electrical connector provided inside the cage 106. The electrical connector is configured to be connected to the electrical port of the optical module 200; the heat sink 107 has fins and other protrusions that increase the heat dissipation area.

The optical module 200 is inserted into the cage 106 of the optical network terminal 100, and the optical module 200 is fixed by the cage 106. The heat generated by the optical module 200 is conducted to the cage 106, and then diffused through the heat sink 107. After the optical module 200 is inserted into the cage 106, the electrical port of the optical module 200 is connected to the electrical connector inside the cage 106, so that the optical module 200 establishes a bidirectional electrical signal connection with the optical network terminal 100. In addition, the optical port of the optical module 200 is connected to the optical fiber 101, so that the optical module 200 and the optical fiber 101 establish a bidirectional electrical signal connection.

Figure 3 is a connection diagram of a data center switch according to some embodiments. As shown in Figure 3, H3C's S12500X-AF switch based on the 100G platform can also be used as the data center core (Spine node), and the access layer can use the S9820 switch as the 100G TOR switch (Leaf node) to provide high-density 100G/40G /25G/10G server access solution.

S9820 switch 2000 supports high-density 400GE/100GE/40GE ports. It can be used as an aggregation device in the three-layer architecture of the data center and is connected to the TOR switch. The uplink is connected to the S12500 data center 1000 through 400GE/100GE links. The optical module 200 is inserted into the S12500. In data center 1000, 25G/10G server access is provided to build a highly reliable and highly redundant ultra-large-scale data center network.

FIG. 4 is a structural diagram of an optical module according to some embodiments, and FIG. 5 is an exploded view of an optical module according to some embodiments. As shown in Figures 4 and 5, the optical module 200 includes a housing, a circuit board 300 provided in the housing, and an optical component provided on the circuit board 300;

The housing includes an upper housing 201 and a lower housing 202. The upper housing 201 is covered on the lower housing 202 to form the above-mentioned housing with two

openings

204 and 205; the outer contour of the housing generally presents a square body.

The direction of the connection between the two

openings

204 and 205 may be consistent with the length direction of the optical module 200 , or may be inconsistent with the length direction of the optical module 200 . Among them, the opening 204 is an electrical port, and the golden finger of the circuit board 300 extends from the electrical port 204 and is inserted into the host computer; the opening 205 is an optical port, configured to access the external optical fiber 101, so that the optical fiber 101 is connected to the optical module 200 internal.

The assembly method of combining the upper housing 201 and the lower housing 202 facilitates the installation of components such as the circuit board 300 into the housing, and the upper housing 201 and the lower housing 202 can form package protection for these components. In some embodiments, the upper housing 201 and the lower housing 202 are generally made of metal materials, which facilitates electromagnetic shielding and heat dissipation.

In some embodiments, the optical module 200 further includes an unlocking component 203 located on the outer wall of its housing. When the optical module 200 is inserted into the cage of the host computer, the engaging part of the unlocking part 203 locks the optical module 200 in the cage of the host computer; when the unlocking part 203 is pulled, the engaging part of the unlocking part 203 moves accordingly, and then Change the connection relationship between the engaging component and the host computer to release the engagement between the optical module 200 and the host computer.

The circuit board 300 includes circuit traces, electronic components and chips, and the electronic components and chips are connected together according to the circuit design through the circuit traces.

The circuit board 300 is generally a rigid circuit board. Due to its relatively hard material, the rigid circuit board can also perform a load-bearing function. For example, the rigid circuit board can smoothly carry chips; the rigid circuit board can also be inserted into an electrical connector in a host computer cage. .

The circuit board 300 also includes gold fingers formed on its end surface, and the gold fingers are composed of a plurality of mutually independent pins. The circuit board 300 is inserted into the cage 106 and electrically connected to the electrical connector in the cage 106 by the gold finger. The golden finger is configured to establish an electrical connection with the host computer to realize power supply, grounding, I2C signal transmission, data signal transmission, etc. Of course, flexible circuit boards are also used in conjunction with the circuit board 300 in some optical modules.

The optical component may include a first optical component 400 and a second optical component 500. The first optical component 400 and the second optical component 500 may have transmitting and receiving functions at the same time to achieve two sets of light emission and two sets of light reception. The optical component may also include a light emitting component and a light receiving component, that is, the light beam emitted by the light emitting component is transmitted to the external optical fiber through the internal optical fiber ribbon and the optical fiber adapter 600 to achieve a set of light emission; the receiving light beam transmitted by the external optical fiber is transmitted through the optical fiber adapter. 600. The internal optical fiber is transmitted to the light receiving component to realize the reception of a set of light. The light component may also include a first light emitting component and a second light emitting component, that is, the first light emitting component and the second light emitting component respectively emit light beams to achieve the emission of two sets of light. The light component may also include a first light receiving component and a second light receiving component, that is, the first light receiving component and the second light receiving component respectively receive external light beams to achieve reception of two sets of light.

In the embodiment of the present disclosure, the first optical component 400 and the second optical component 500 are both optical transceiver components as an example for description.

Figure 6 is a schematic diagram of the assembly of the circuit board, optical components, fiber optic adapters and fiber optic plugs in the optical module according to some embodiments. As shown in Figure 6, the optical signals emitted by the first optical component 400 and the second optical component 500 are respectively transmitted to the optical fiber adapter 600 through the optical fiber ribbon, and the optical signal is coupled to the external optical fiber 700 through the optical fiber adapter 600 to realize the emission of light; The optical signal transmitted by the external optical fiber 700 is transmitted to the optical fiber adapter 600. The optical fiber adapter 600 transmits the received optical signal to the first optical component 400 and the second optical component 500 through the optical fiber ribbon respectively to achieve light reception.

In some embodiments, an end of the external optical fiber 700 inserted into the optical fiber adapter 600 is provided with an optical fiber plug. The optical fiber plug is inserted into the optical fiber adapter 600 during use, so that the optical signal transmitted by the optical fiber ribbon is coupled to the external optical fiber through the optical fiber adapter 600. The received optical signal transmitted by the optical fiber is transmitted to the first optical component 400 and the second optical component 500 through the optical fiber adapter 600 .

Figure 7 is a schematic structural diagram of an optical fiber adapter in an optical module according to some embodiments. As shown in Figure 7, the optical fiber adapter 600 includes a claw 610 and an optical fiber plug 620. A penetrating light hole is provided in the claw 610. The optical fiber plug 620 is inserted into one end of the light hole. The optical fiber plug 620 communicates with the first optical fiber through the optical fiber ribbon. The component 400 and the second optical component 500 are connected; the external optical fiber 700 is inserted into the other end of the light hole, and the external optical fiber 700 is coupled with the optical fiber plug 620 to realize the coupling connection between the optical fiber adapter 600 and the external optical fiber.

FIG. 8 is a schematic structural diagram of a claw in an optical module according to some embodiments, and FIG. 9 is a cross-sectional view of a claw in an optical module according to some embodiments. As shown in Figures 8 and 9, the claw 610 includes a claw body, the claw body is provided with a penetrating light hole 6130, and the claw body is provided with a slot on both sides opposite to it, and one end of the slot is provided with a slot. There is an opening, and a first elastic buckle 6160 is provided in the slot. One end of the first elastic buckle 6160 is fixedly connected to the claw body, so that the first elastic buckle 6160 can be opened and closed with the fixed end, so that the first elastic buckle 6160 can be opened and closed with the fixed end. The elastic buckle 6160 supports outward or clamps inward.

In some embodiments, the claw body includes a first body 6102, a second body 6101 and an opposite side 6103. The first body 6102 and the second body 6101 are arranged oppositely, and the two ends of the side 6103 are respectively connected with the first body 6102 and the second body 6103. The two bodies 6101 are connected, and a slot 6104 is provided on the side 6103. The slot 6104 is provided with an opening toward one end of the external optical fiber 700. A first elastic buckle 6160 is provided in the slot 6104. One end of the first elastic buckle 6160 It is fixedly connected to the side 6103 so that the first elastic buckle 6160 can rotate at a preset angle in the slot 6104 to securely connect the external optical fiber 700 inserted into the claw 610 .

In some embodiments, a mounting groove 6110 is provided on the inner wall of the first body 6102 facing the light hole 6130. The mounting groove 6110 can be configured to guide the external optical fiber plug to be inserted into the light hole 6130, that is, the external optical fiber 700 When inserted into the light hole 6130 of the claw 610, the external optical fiber 700 can be inserted into the claw 610 along the installation groove 6110, and the external optical fiber 700 is clamped through the claw 610 to achieve the connection between the external optical fiber 700 and the claw 610. Secure connection.

In some embodiments of the present disclosure, when the external optical fiber 700 and the optical fiber adapter 600 are disassembled, the first elastic buckle 6160 of the claw 610 can be pushed, so that the external optical fiber 700 moves to the left along the installation groove 6110 , to separate the outer optical fiber 700 and the claw 610.

However, the claws 610 are elastic parts. If the operator makes a mistake and inserts the external optical fiber 700 into the claws 610 in the reverse direction (rotated 360 degrees), the external optical fiber 700 can also open the claws 610 and be successfully inserted into the claws 610. As a result, the external optical fiber 700 and the optical fiber plug 620 in the claw 610 cannot be coupled and connected, which affects the optical coupling effect.

In some embodiments, in order to prevent the external optical fiber 700 from being reversely inserted into the claw 610, a reverse insertion boss 6120 is provided on the inner wall of the second body 6101 facing the light hole 6130. The reverse insertion boss 6120 is in contact with the installation recess. The grooves 6110 are relatively staggered, that is, the installation grooves 6110 are provided on the first body 6102, the reverse insertion boss 6120 is provided on the second body 6101, and the installation grooves 6110 and the reverse insertion boss 6120 are arranged oppositely.

In some embodiments, the mounting groove 6110 and the reverse insertion boss 6120 are centrally symmetrical, that is, when the first body 6102 of the claw 610 is flipped downward 360 degrees, the flipped mounting groove 6110 is in contact with the second body 6101 The reverse insertion boss 6120 is located at the same position of the claw body. In this way, when the operator flips the external optical fiber 700 360 degrees and inserts the flipped external optical fiber 700 into the claw 610, the external optical fiber 700 collides with the reverse insertion boss 6120 in the claw 610 and is blocked by the reverse insertion boss 6120. The external optical fiber 700 continues to be inserted inward, so that the external optical fiber 700 cannot be inserted into the claw 610, and the operator is warned that the external optical fiber 700 is inserted backwards, and the operator is reminded to insert the external optical fiber 700 correctly.

In some embodiments, the mounting groove 6110 can also be provided on the second body 6101 of the claw 610, the reverse insertion boss 6120 is provided on the first body 6102 of the claw 610, and the reverse insertion boss 6120 on the first body 6102 It is arranged centrally symmetrically with the installation groove on the second body 6101.

FIG. 10 is a schematic structural diagram of an external optical fiber in an optical module according to some embodiments. FIG. 11 is an exploded cross-sectional view of an external optical fiber and an optical fiber adapter in the optical module according to some embodiments. As shown in Figures 10 and 11, one end of the external optical fiber 700 inserted into the claw 610 is provided with a plug. The plug is provided with a protrusion 710. The protrusion 710 is provided on the upper side of the plug, and the protrusion 710 is in contact with the claw. The mounting groove 6110 of 610 is set correspondingly. In this way, when the external optical fiber 700 is inserted into the claw 610, the protrusion 710 on the external optical fiber 700 is inserted into the installation groove 6110, and the protrusion 710 moves left and right in the installation groove 6110, so that the external optical fiber 700 is correctly inserted into the claw 610.

In some embodiments, when the operator flips the external optical fiber 700 downward 360 degrees, the protrusion 710 on the top surface of the external optical fiber 700 turns downward, and the flipped external optical fiber 700 is inserted into the claw 610. The protrusion 710 collides with the reverse insertion boss 6120 on the second body 6101, and the reverse insertion boss 6120 blocks the flipped protrusion 710 from continuing to be inserted inward, so that the external optical fiber 700 cannot be inserted into the claw 610, and the operator is alerted. Plugged in backwards.

In some embodiments, a limiting surface 6170 is provided in the light hole 6130 of the claw 610, and the diameter of the light hole passing through the limiting surface 6170 is smaller than the diameter of the light hole between the first body 6102 and the second body 6101. The diameter size is such that when the external optical fiber 700 is inserted into the light hole 6130 of the claw 610, the plug end surface of the external optical fiber 700 contacts the limiting surface 6170 to limit and fix the external optical fiber 700.

Insert the external optical fiber 700 into the claw 610, and after the plug end surface of the external optical fiber 700 contacts the limiting surface 6170, the external optical fiber 700 is fastened and connected through the first elastic buckle 6160. In some embodiments of the present disclosure, a fixing groove can be provided on the side of the plug of the external optical fiber 700. After the external optical fiber 700 is inserted into the claw 610, the first elastic buckle 6160 is clamped into the fixing groove, so that the first elastic buckle 6160 is inserted into the fixing groove. An elastic buckle 6160 realizes the fixed connection between the external optical fiber 700 and the claw 610.

When it is necessary to disassemble the external optical fiber 700, the first elastic buckle 6160 can be pulled to separate the first elastic buckle 6160 from the fixing groove of the external optical fiber 700, and then the plug of the external optical fiber 700 can be moved outward, thereby realizing the connection between the external optical fiber 700 and the external optical fiber 700. Separation of the claws 610.

Figure 12 is an exploded schematic diagram of a fiber optic adapter in an optical module according to some embodiments. As shown in Figure 12, in order to facilitate the insertion of the optical fiber plug 620 into the claw 610 and the positioning and connection of the external optical fiber 700 and the optical fiber plug 620, the optical fiber adapter 600 also includes a fixing member 630 and a pin 640. One end of the fixing member 630 is connected to the optical fiber plug 620. The end faces of the fixing member 630 are in contact with each other, and the other end of the fixing member 630 is clamped and fixed with the claw 610 , so that the optical fiber plug 620 is clamped in the claw 610 through the fixing member 630 .

Figure 13 is a schematic structural diagram of a claw in an optical module according to some embodiments. As shown in Figure 13, the end of the claw 610 facing away from the external optical fiber 700 is provided with a second elastic buckle 6140. One end of the second elastic buckle 6140 is fixedly connected to the claw body, and the second elastic buckle 6140 is connected to the first elastic buckle 6140. The first body 6102 and the second body 6101 are located on the same side, that is, one end of the claw 610 is provided with an opposite second elastic buckle 6140, and the light hole 6130 passes through the gap between the two second elastic buckles 6140.

The second elastic buckle 6140 can rotate within a preset angle range, so that the second elastic buckle 6140 can be clamped inward to fix the optical fiber plug 620, and can also be pushed outward to remove the optical fiber plug 620.

In some embodiments, the end of the claw 610 facing away from the external optical fiber 700 is also provided with a first side 6150, and the light hole 6130 passes through the first side 6150, so that the optical fiber plug 620 can be inserted into the claw 610 through the light hole 6130. , and the optical fiber plug 620 is limited through the first side 6150.

Figure 14 is a schematic structural diagram of an optical fiber plug in an optical module according to some embodiments. As shown in Figure 14, the optical fiber plug 620 includes a ferrule 6210 and a fixing part 6220. The outer wall of the fixing part 6220 protrudes from the outer wall of the ferrule 6210, that is, the width dimension of the fixing part 6220 in the up and down direction and the length dimension in the front and back direction. Both are larger than the width dimension of the ferrule 6210 in the up and down direction and the length dimension in the front and rear direction.

When the optical fiber plug 620 is inserted into the light hole 6130 of the claw 610, the ferrule 6210 extends into the light hole 6130, and the first side 6150 and the second side 6260 abut, so as to limit the optical fiber plug 620 through the first side 6150. position, so that the fixing part 6220 is located outside the light hole 6130.

In some embodiments, the second elastic buckle 6140 of the claw 610 protrudes from the first side 6150, and the ferrule 6210 of the optical fiber plug 620 is inserted into the light hole 6130 of the claw 610, and the fixing part 6220 of the optical fiber plug 620 is located in the gap between the second elastic buckles 6140.

The fixing part 6220 also includes a third side 6230 facing away from the ferrule 6210, and the third side 6230 is in contact with one end surface of the fixing member 630. In some embodiments of the present disclosure, the ferrule 6210 of the fiber optic plug 620 is inserted into the light hole 6130 of the claw 610, and the second side 6260 of the fiber optic plug 620 is abutted against the first side 6150 of the claw 610, Then the fixing part 630 is pressed against the third side 6230 of the optical fiber plug 620, and then the second elastic buckle 6140 is used to resist the end surface of the fixing part 630 to apply force to the fixing part 630 and the optical fiber plug 620, so that the optical fiber The plug 620 and the fixing member 630 are fixed in the claw 610 .

In some embodiments, the fiber optic plug 620 further includes a fifth side 6270 facing the outer optical fiber 700, the fifth side 6270 being opposite to the third side 6230. The third side 6230 is provided with an optical fiber jack 6240, and the fifth side 6270 is provided with a plurality of optical fiber holes arranged side by side. The plurality of optical fiber holes are connected with the optical fiber jack 6240, so that the optical fiber ribbon is inserted into the optical fiber plug through the optical fiber jack 6240. 620, and each optical fiber in the optical fiber ribbon is placed in an optical fiber hole.

When the optical fiber is placed in the optical fiber hole, the light exit surface of the optical fiber can be located inside the optical fiber plug 620. In this way, when the optical fiber plug 620 and the plug of the external optical fiber 700 are connected in the claw 610, the optical signal transmitted by the optical fiber is coupled to the external optical fiber through the optical fiber hole. 700; The light-emitting surface of the optical fiber can also protrude from the optical fiber plug 620, that is, the optical fiber protrudes from the fifth side 6270 through the optical fiber hole. In this way, when the optical fiber plug 620 and the plug of the external optical fiber 700 are connected in the claw 610, the optical signal transmitted by the optical fiber Coupled directly to external optical fiber 700.

FIG. 15 is a schematic structural diagram of a fixing member in an optical module according to some embodiments, and FIG. 16 is a schematic structural diagram of a pin in an optical module according to some embodiments. As shown in Figures 15 and 16, the fixing member 630 includes a fourth side 6310 and a sixth side. The fourth side 6310 is the side facing away from the optical fiber plug 620. The sixth side is opposite to the fourth side 6310, and the sixth side In contact with the third side 6230 of the optical fiber plug 620, the second elastic buckle 6140 resists the fourth side 6310 of the fixing member 630 to exert force to fix the claw 610, the optical fiber plug 620 and the fixing member 630.

The fixing member 630 is provided with a through escape hole 6320, which is opposite to the optical fiber jack 6240 on the third side 6230, so that the optical fiber ribbon connecting the first optical component 400 and the second optical component 500 passes through the escape hole. 6320 is inserted into the optical fiber jack 6240 to realize optical fiber connection between the first optical component 400, the second optical component 500 and the optical fiber adapter 600.

In some embodiments, in order to facilitate the optical fiber ribbon to pass through the escape hole 6320, an opening can be provided on one side of the fixing member 630, and the opening is connected with the escape hole 6320, so that the optical fiber ribbon can pass through the upper opening and be embedded in the escape hole 6320.

The third side 6230 of the optical fiber plug 620 is also provided with a pin hole 6250, which penetrates the fixing part 6220 and the ferrule 6210 of the optical fiber plug 620; the fixing member 630 is provided with a first through hole 6330 and a second through hole. Hole 6340, the first through hole 6330 and the second through hole 6340 are connected, and the diameter of the first through hole 6330 is larger than the diameter of the second through hole 6340.

The pin 640 includes an exposed portion 6410, a connecting portion 6420, and an inserting portion 6430. The exposed portion 6410 is connected to the inserting portion 6430 through the connecting portion 6420, and the diameter of the exposed portion 6410 is greater than or equal to the diameter of the inserting portion 6430. The diameter size is larger than the diameter size of the connecting portion 6420 .

The diameter of the first through hole 6330 is greater than or equal to the diameter of the insertion portion 6430 , the diameter of the second through hole 6340 is less than the diameter of the insertion portion 6430 , and the diameter of the second through hole 6340 is greater than or equal to the diameter of the connecting portion 6420 size.

In some embodiments, to facilitate taking the pin 640, the diameter of the exposed portion 6410 may be larger than the diameter of the first through hole 6330. In this way, when the pin 640 is inserted into the pin hole 6250 of the optical fiber plug 620 through the first through hole 6330, the exposed part 6410 is exposed outside the fixing member 630, and the insertion part 6430 is inserted into the pin hole 6250 through the first through hole 6330. , at this time, the pin 640 can move left and right in the pin hole 6250 and the first through hole 6330; then move the fixing member 630 to snap the connecting part 6420 into the second through hole 6340. At this time, the pin 640 cannot move in the second through hole 6340. Move left and right in the through hole 6340 to fix the pin 640 on the fixing member 630 .

In some embodiments, the fiber optic plug 620 can be an MT male plug, and the plug of the external optical fiber 700 can be a corresponding MT female plug. That is, after the pin 640 is fixed to the fiber optic plug 620, one end of the pin 640 facing away from the exposed portion 6410 protrudes from In the optical fiber plug 620, the external optical fiber 700 is inserted into the claw 610, and the protruding pin 640 is inserted into the socket on the end face of the external optical fiber 700 to realize the positioning connection between the optical fiber plug 620 and the external optical fiber 700.

Figure 17 is a schematic diagram of the assembly of claws, fiber optic plugs, fixings and pins in the optical module according to some embodiments. Figure 18 is a cross-sectional view of the fiber optic adapter in the optical module according to some embodiments. Figure 19 is a schematic diagram of the fiber optic adapter in the optical module according to some embodiments. Another angle cross-section view of the fiber optic adapter in the optical module. As shown in Figures 17, 18, and 19, when assembling the fiber optic adapter 600, first place the sixth side of the fixing member 630 against the third side 6230 of the fiber optic plug 620, and then insert the pin 640 through the first passage. The hole 6330 is inserted into the pin hole 6250 of the optical fiber plug 620 until the exposed portion 6410 abuts the connection surface of the connecting portion 6420 and the fourth side 6310 of the fixing member 630; then the fixing member 630 is moved so that the connecting portion 6420 of the pin 640 Snap into the second through hole 6340, so that the pin 640 is fixedly connected to the optical fiber plug 620 through the fixing part 630, without glue; then insert the assembled optical fiber plug 620, fixing part 630 and pin 640 into the claw 610 In the light hole 6130, the second side 6260 of the optical fiber plug 620 is in contact with the first side 6150 of the claw 610, and the second elastic buckle 6140 is pressed against the fourth side 6310 of the fixing member 630, thus the optical fiber plug 620 is , the fixing piece 630 is fixed in the claw 610.

When the optical port of the optical fiber adapter 600 is damaged and the optical port needs to be polished, first push the second elastic buckle 6140, remove the optical fiber plug 620, the fixing part 630 and the pin 640 from the claw 610, and then move the fixing part 630 , move the connecting portion 6420 of the pin 640 into the first through hole 6330, and pull out the pin 640 from the first through hole 6330 and the pin hole 6250. After the pin 640 is pulled out of the optical fiber plug 620, the optical port side is freely ground. After the grinding is completed, the optical fiber adapter 600 is assembled in sequence.

An optical module according to some embodiments includes a circuit board, an optical component and an optical fiber adapter. The optical component is electrically connected to the circuit board and is configured to transmit and/or receive optical signals. The optical fiber adapter is connected to the optical component through an optical fiber ribbon to connect the optical component to the optical module. The emitted optical signal is transmitted out and the external beam is transmitted to the optical component. Among them, the optical fiber adapter includes a claw, an optical fiber plug, a pin and a fixing piece. The claw is provided with a penetrating light hole, and the inner wall of one end of the light hole is provided with a reverse insertion boss. In this way, the operator can insert the plug of the external optical fiber After flipping over, the reverse insertion boss can block the external optical fiber plug from being inserted into the claw, thereby preventing the external optical fiber plug from being inserted reversely; one end of the optical fiber plug is fixed with an optical fiber ribbon, and the other end of the optical fiber plug is inserted into the other end of the light hole, so that the optical fiber plug The plug and the external optical fiber plug are connected through claws to realize the optical connection between the optical fiber ribbon and the external optical fiber, so that the optical component is connected to the external optical fiber through the optical fiber adapter; the optical fiber plug is provided with a penetrating pin hole; one end of the fixing piece is connected to the optical fiber plug The end face is in contact, and the other end is clamped and fixed with the claw, so that the optical fiber plug is fixed in the claw through the fixing piece; the fixing piece is provided with a first through hole and a second through hole that are connected, and the first through hole is larger than the second through hole. The diameter size of the two through holes; the pin includes an exposed part, a connecting part and an insertion part, the exposed part is connected to the insertion part through the connecting part, the diameter size of the insertion part is smaller than the diameter size of the first through hole, and larger than the diameter size of the second through hole Diameter size, the insertion part is inserted into the pin hole of the optical fiber plug; the diameter size of the connecting part is smaller than the diameter size of the second through hole, and the connecting part is fixed in the second through hole; in this way, the pin moves through the first through hole Insert into the optical fiber plug, that is, when the pin is inserted into the optical fiber plug through the first through hole, the pin can move in the first through hole and the optical fiber plug to facilitate the insertion or removal of the pin; the pin is fixed through the second through hole In the optical fiber plug, that is, after the pin is inserted into the optical fiber plug through the first jack, the fixing member is moved so that the pin is fixed in the second through hole, thereby fixedly connecting the pin and the optical fiber plug through the second through hole. Instead of using traditional glue; therefore, when the optical port of the optical fiber adapter is damaged, first remove the optical fiber plug from the claw, then move the pin to the first through hole, and pull the pin out of the optical fiber plug, so that the optical fiber The mouth side can be ground freely, and after grinding, the pin is put back into the optical fiber plug through the first through hole and the second through hole; the external optical fiber is inserted into the other end of the light hole, and is positioned and connected to the optical fiber plug through the pin. The present disclosure uses an optimized claw design to fix the optical fiber plug in the claw through a fixing member, and realizes the assembly and disassembly of the pin through the first through hole and the second through hole of the fixing member, which facilitates the maintenance of the optical fiber damaged by grinding in the production line. port, thereby reducing the loss of optical port scrapping.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present disclosure, but not to limit it; although the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it can still be Modifications may be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions may be made to some of the technical features; however, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions that come to mind within the technical scope disclosed by the present disclosure by any person familiar with the technical field should be covered. within the scope of this disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

An optical module includes:

circuit board;

an optical component electrically connected to the circuit board and configured to emit and/or receive optical signals;

Optical fiber adapter, connected to the optical component through an optical fiber ribbon;

Wherein, the fiber optic adapter includes:

The claw is provided with a penetrating light hole, and the inner wall of one end of the light hole is provided with a reverse insertion boss;

An optical fiber plug, with the optical fiber ribbon fixed at one end and the other end inserted into the other end of the light hole; a penetrating pin hole is provided on it;

The fixing piece has one end in contact with the end face of the fiber optic plug, and the other end is clamped and fixed with the claw; a first through hole and a second through hole are provided on it, and the first through hole is larger than the first through hole. The diameter size of the second through hole;

The pin includes an exposed part, a connecting part and an inserting part. The exposed part is connected to the inserting part through the connecting part; the diameter of the inserting part is smaller than the diameter of the first through hole and larger than the diameter of the first through hole. The diameter size of the second through hole, the insertion part is inserted into the pin hole; the diameter size of the connecting part is smaller than the diameter size of the second through hole, and the connecting part is fixed on the second through hole. inside the through hole.
The optical module according to claim 1, wherein a mounting groove is further provided on the inner wall of one end of the light hole, and the mounting groove and the reverse insertion boss are relatively staggered.
The optical module according to claim 2, wherein the mounting groove and the reverse insertion boss are arranged centrally symmetrically.
The optical module according to claim 2, wherein one end of the claw is provided with a first elastic buckle, and the first elastic buckle is located between the installation groove and the reverse insertion boss, so The first elastic buckle is configured to buckle an external optical fiber inserted into the light hole.
The optical module according to claim 1, wherein the other end of the claw is provided with a first side and a second elastic buckle, and the second elastic buckle protrudes from the first side;

The optical fiber plug includes a ferrule and a fixing part. The outer wall of the fixing part protrudes from the outer wall of the ferrule. The ferrule passes through the first side and is inserted into the light hole; the ferrule A second side surface is provided at a connection point between the core and the fixing part, and the second side surface abuts against the first side surface.
The optical module according to claim 5, wherein the fixing part includes a third side facing away from the ferrule, and the third side is in contact with an end surface of the fixing member; the third side is provided with There is a pin hole that penetrates the fixing part and the ferrule, and the pin passes through the first through hole or the second through hole and is inserted into the pin hole.
The optical module according to claim 6, wherein an optical fiber jack is provided on the third side, and the optical fiber ribbon is inserted into the optical fiber plug through the optical fiber jack;

The fixing member is provided with an escape hole, the escape hole is arranged opposite to the optical fiber jack, and the optical fiber ribbon passes through the escape hole and is inserted into the optical fiber jack.
The optical module according to claim 7, wherein an opening is provided on one side of the fixing member, and the opening is connected with the escape hole.
The optical module according to claim 1, wherein a diameter size of the exposed portion is equal to or smaller than a diameter size of the insertion portion, and a diameter size of the exposed portion is greater than a diameter size of the connecting portion.
The optical module according to claim 1, wherein a diameter size of the exposed portion is larger than a diameter size of the first through hole.
An optical module includes:

circuit board;

an optical component electrically connected to the circuit board and configured to emit and/or receive optical signals;

Optical fiber adapter, connected to the optical component through an optical fiber ribbon;

Wherein, the fiber optic adapter includes:

The claw includes a claw body, which is provided with a penetrating light hole. The inner wall of one end of the light hole is provided with a reverse insertion boss and a mounting groove. The reverse insertion boss and the The mounting grooves are relatively staggered; slots are provided on opposite sides of the claw body, and a first elastic buckle is provided in the slot; the claw body faces away from the first elastic buckle One end is provided with a second elastic buckle;

An optical fiber plug has the optical fiber ribbon fixed at one end, the other end is inserted into the other end of the light hole, and its end surface is snap-fastened with the second elastic buckle.
The optical module according to claim 11, wherein the claw body includes a first body and a second body arranged oppositely, and the side where the slot is located is connected to the first body and the second body;

The mounting groove is provided on the inner side wall of the first body, and the reverse insertion boss is provided on the inner side wall of the second body.
The optical module according to claim 12, wherein the mounting groove and the reverse insertion boss are arranged centrally symmetrically.
The optical module according to claim 12, wherein the distance between the reverse insertion boss and the inner wall of the second body is a preset distance.
The optical module according to claim 11, wherein a limiting surface is provided in the light hole, and the light hole passes through the limiting surface; the light hole size on one side of the limiting surface is smaller than the light hole. Describe the size of the light hole on the other side of the limiting surface.
The optical module according to claim 15, wherein the mounting groove and the reverse insertion boss extend from the end surface of the claw to the limiting surface.
The optical module according to claim 11, wherein the second elastic buckle is located on the same side as the first body and the second body.
The optical module according to claim 11, wherein one end of the optical fiber plug is inserted into the light hole between the second elastic buckles, and the second elastic buckle resists the other end surface of the optical fiber plug. .
The optical module according to claim 11, wherein an opening is provided at one end of the slot facing away from the optical fiber plug, and the first elastic buckle protrudes from the opening.
An optical module includes:

circuit board;

an optical component electrically connected to the circuit board and configured to emit and/or receive optical signals;

Optical fiber adapter, connected to the optical component through an optical fiber ribbon;

Wherein, the fiber optic adapter includes:

The claw is provided with a penetrating light hole, and one end of the light hole is provided with a second elastic buckle;

An optical fiber plug has the optical fiber ribbon fixed at one end and the other end inserted into the light hole; a penetrating pin hole is provided on it;

The fixing member has one end in contact with the end face of the optical fiber plug, and the other end is snap-fastened with the second elastic buckle; a first through hole and a second through hole are provided on it, and the first through hole is Larger than the diameter of the second through hole;

The pin includes an exposed part, a connecting part and an inserting part. The exposed part is connected to the inserting part through the connecting part; the diameter of the inserting part is smaller than the diameter of the first through hole and larger than the diameter of the first through hole. The diameter size of the second through hole, the insertion part is inserted into the pin hole through the first through hole; the diameter size of the connecting part is smaller than the diameter size of the second through hole, the connection part The part is clamped in the second through hole.
The optical module according to claim 20, wherein the claw further includes a first side, the first side and the second elastic buckle are located on the same side of the claw;

The optical fiber plug includes a ferrule and a fixing part, and the outer wall of the fixing part protrudes from the outer wall of the ferrule; the ferrule is inserted into the light hole through the first side; the ferrule A second side surface is provided at a connection point between the core and the fixing part, and the second side surface abuts against the first side surface.
The optical module according to claim 21, wherein the fixing part includes a third side facing away from the ferrule, and the third side is in contact with an end surface of the fixing member; the pin hole is provided in On the third side, the pin hole penetrates the fixing part and the ferrule, and the pin passes through the first through hole or the second through hole and is inserted into the pin hole.
The optical module according to claim 22, wherein an optical fiber jack is further provided on the third side, and the optical fiber ribbon is inserted into the optical fiber plug through the optical fiber jack.
The optical module according to claim 22, wherein the optical fiber plug further includes a fifth side inserted into the light hole, the fifth side being opposite to the third side; There are a plurality of optical fiber holes, and the optical fibers in the optical fiber ribbon are placed in the optical fiber holes.
The optical module according to claim 24, wherein the optical fibers in the optical fiber ribbon protrude from the fifth side.
The optical module according to claim 23, wherein the fixing member is provided with an escape hole, the escape hole is arranged opposite to the optical fiber jack, and the optical fiber ribbon is inserted into the optical fiber insert through the escape hole. inside the hole.
The optical module according to claim 26, wherein an opening is provided on one side of the fixing member, and the opening is connected with the escape hole.
The optical module according to claim 20, wherein a diameter size of the exposed part is greater than or equal to a diameter size of the insertion part.