WO2023087566A1 - Optical module - Google Patents

Abstract

An optical module (200), comprising a housing, and a circuit board (300), a light emitting assembly (400), a light receiving assembly (500) and an optical fiber limiting assembly (700) that are provided in the housing. The light emitting assembly (400) and the light receiving assembly (500) are both connected to the circuit board (300), and the optical fiber limiting assembly (700) is provided in the housing. The light receiving assembly (500) is laid on a bottom surface of a lower housing (202). The light emitting assembly (400) and the light receiving assembly (500) are stacked. The optical fiber limiting assembly (700) comprises a connecting piece (701) and a fixing piece (702). The connecting piece (701) is connected to the fixing piece (702) and fixed on an upper surface of the light receiving assembly (500), and the connecting piece (701) is provided with a fixing groove (70114).

Description

optical module

This disclosure claims to be submitted to the China Patent Office on November 22, 2021, with the application number 202111388904.2, and submitted to the China Patent Office on November 22, 2021, with the patent priority of the application number 202122873984.2, the entire contents of which are incorporated in this disclosure by reference middle.

technical field

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

Background technique

The optical module includes optical transceiver components and multiple optical fiber connectors. Due to the limited space in the optical module, the optical module layout components are easy to detach from the housing and damage the optical module.

Contents of the invention

In one aspect, some embodiments of the present disclosure provide an optical module. The optical module includes a lower housing, a circuit board, a light receiving component, a light emitting component, an optical fiber limiting component, a connecting piece, a fixing groove and a fixing piece. The lower casing and the upper casing form a casing with an optical port; the circuit board is arranged in the casing; the light receiving component is laid on the bottom surface of the lower casing, is electrically connected to the circuit board, and is configured In order to receive optical signals; the light transmitting component is stacked with the light receiving component and electrically connected to the circuit board, the light transmitting component includes an optical fiber adapter configured to transmit optical signals; the optical fiber limiting component is arranged on the shell The body includes a connecting piece and a fixing piece, the optical fiber limiting component is configured to fix the light emitting component on the upper surface of the light receiving component, and fix the light receiving component on the bottom surface of the lower housing; the connecting piece, It is connected with the fixing piece and fixed on the upper surface of the light receiving component. The connecting piece is provided with a fixing groove; on the upper surface of the light-receiving component; the fixing member, fixed on the bottom surface of the lower case, is configured to fix the light-receiving component on the bottom surface of the lower case.

On the other hand, some embodiments of the present disclosure provide an optical module. The optical module includes a lower casing, a circuit board, a light receiving assembly, an optical fiber limiting assembly and a fiber winding frame assembly. The lower casing and the upper casing form a casing with an optical port and an electrical port; the circuit board is arranged in the casing; the light emitting assembly is arranged in the casing and is electrically connected with the circuit board, and The first optical fiber connection is configured to emit an optical signal; the light receiving component is arranged in the housing, electrically connected to the circuit board, connected to the second optical fiber, and configured to receive the optical signal sent by the second optical fiber, wherein, Both the first optical fiber and the second optical fiber are wound from the direction of the optical port to the direction of the electrical port, and then from the direction of the electrical port to the direction of the optical port; position; the fiber winding frame assembly is set on the circuit board and is configured to fix the optical fiber on the circuit board side.

Description of drawings

In order to illustrate the technical solutions in the present disclosure more clearly, the following will briefly introduce the accompanying drawings required in some embodiments of the present disclosure. Obviously, the accompanying drawings in the following description are only appendices to some embodiments of the present disclosure. Figures, 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 limitations on the actual size of the product involved in the embodiment of the present disclosure, the actual process of the method, the actual timing of the signal, and the like.

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

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

Fig. 3 is a structural diagram of an optical module according to some embodiments;

Figure 4 is an exploded view of an optical module according to some embodiments;

Fig. 5 is a schematic structural view of an optical transceiver assembly, an optical fiber limiting assembly, a fiber winding frame assembly and a circuit board according to some embodiments;

Fig. 6 is a schematic structural diagram of an optical fiber limiting assembly, a fiber winding frame assembly and an optical fiber according to some embodiments;

Fig. 7 is a schematic structural diagram of a first angle of an optical transceiver assembly and an optical fiber limiting assembly according to some embodiments;

Fig. 8 is a schematic diagram of a second angle structure of an optical transceiver component and an optical fiber limiting component according to some embodiments;

Fig. 9 is a schematic structural diagram of a first angle of an optical fiber limiting assembly according to some embodiments;

Fig. 10 is a schematic diagram of a second angle structure of an optical fiber limiting assembly according to some embodiments;

Fig. 11 is a schematic structural diagram of a third angle of an optical fiber limiting assembly according to some embodiments;

Fig. 12 is a schematic structural diagram of a fiber winding frame assembly and a circuit board according to some embodiments;

Fig. 13 is a schematic structural view of a fiber winding frame assembly according to some embodiments;

Fig. 14 is a schematic structural view of an optical fiber limiting assembly, an optical transceiver assembly and a lower housing according to some embodiments;

Fig. 15 is a schematic structural diagram of a lower housing, a light receiving component and a light emitting component according to some embodiments;

Fig. 16 is a schematic structural diagram of a lower housing and a light receiving assembly according to some embodiments;

Fig. 17 is a schematic structural diagram of a lower housing and an optical fiber limiting assembly according to some embodiments;

Fig. 18 is a schematic structural diagram of a lower case according to some embodiments;

Fig. 19 is a schematic structural diagram of an optical fiber and a light receiving component according to some embodiments;

Fig. 20 is a schematic structural diagram of a light receiving component according to some embodiments;

Figure 21 is a cross-sectional view of a light module according to some embodiments.

Detailed ways

The technical solutions in some embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present disclosure, not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments provided in the present disclosure belong to the protection scope of the present disclosure.

Throughout the specification and claims, unless the context requires otherwise, the term "comprise" and other forms such as the third person singular "comprises" and the present participle "comprising" are used Interpreted as the meaning of openness and inclusion, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific examples" example)" or "some examples (some examples)" etc. are intended to indicate that specific features, structures, materials or characteristics related to the embodiment or examples are included in at least one embodiment or example of the present disclosure. Schematic representations of the above terms are not necessarily referring 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 specifying the quantity of indicated technical features. Thus, a feature 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, the expressions "coupled" and "connected" and their derivatives may be used. For example, the term "connected" may be used in describing some embodiments to indicate that two or more elements 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 elements are in direct physical or electrical contact. However, the terms "coupled" or "communicatively coupled" may also mean that two or more elements are not in direct contact with each other, but yet still co-operate or interact with each other. The embodiments disclosed herein are not necessarily limited by the context herein.

"At least one of A, B and C" has the same meaning as "at least one of A, B or C" and both include the following combinations of A, B and C: A only, B only, C only, A and B A combination of A and C, a combination of B and C, and a 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" herein means open and inclusive language that does not exclude devices configured to perform additional tasks or steps.

As used herein, "about", "approximately" or "approximately" includes the stated value as well as the average within the acceptable deviation range of the specified value, wherein the acceptable deviation range is 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 a particular quantity (ie, limitations of the measurement system).

In optical communication technology, light is used to carry information to be transmitted, and the optical signal carrying information is transmitted to information processing equipment such as a computer through optical fiber or optical waveguide and other information transmission equipment to complete the information transmission. Because optical signals have passive transmission characteristics when they are 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 information processing equipment such as computers are electrical signals. To establish an information connection between them, it is necessary to realize the mutual conversion of electrical signals and optical signals.

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

Fig. 1 is a connection diagram of an optical communication system according to some embodiments. As shown in FIG. 1 , the optical communication system mainly includes a remote server 1000 , a local information processing device 2000 , an optical network terminal 100 , an optical module 200 , an optical fiber 101 and a 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 . Optical fiber itself can support long-distance signal transmission, such as signal transmission of several kilometers (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 thousands of 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 may be any one or more of the following devices: routers, switches, computers, mobile phones, tablet computers, televisions, and so on.

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 establishes a bidirectional optical signal connection with the optical fiber 101; electrical signal connection. The optical module 200 implements mutual conversion between optical signals and electrical signals, so that a connection is established 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 to the optical network terminal 100 , and the electrical signal from the optical network terminal 100 is converted into an optical signal by the optical module 200 and input to the optical fiber 101 .

The optical network terminal 100 includes a substantially rectangular parallelepiped housing (housing), and an optical module interface 102 and a network cable interface 104 disposed 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 A two-way electrical signal connection is established. A connection is established between the optical module 200 and the network cable 103 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, as the host computer of the optical module 200, 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) and the like.

The remote server 1000 establishes a two-way 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 .

FIG. 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, FIG. 2 only shows the optical network terminal 100 related to the optical module 200. structure. As shown in FIG. 2 , the optical network terminal 100 further includes a PCB circuit board 105 disposed in the casing, a cage 106 disposed on the surface of the PCB circuit board 105 , and an electrical connector disposed 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 raised parts 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 radiator 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.

Fig. 3 is a structural diagram of an optical module according to some embodiments, and Fig. 4 is an exploded view of an optical module according to some embodiments. As shown in FIG. 3 and FIG. 4 , the optical module 200 includes a housing, a circuit board 300 disposed in the housing, and an optical transceiver assembly.

The casing includes an upper casing 201 and a lower casing 202. The upper casing 201 is covered on the lower casing 202 to form the above casing with two openings 204 and 205; the outer contour of the casing is generally square.

In some embodiments of the present disclosure, the lower case 202 includes a bottom plate and two lower side plates located on both sides of the bottom plate and perpendicular to the bottom plate; The two upper side plates are combined by two side walls and two side plates to realize that the upper case 201 is covered on the lower case 202 .

The direction of the line connecting the two openings 204 and 205 may be consistent with the length direction of the optical module 200 , or may not be consistent with the length direction of the optical module 200 . For example, the opening 204 is located at the end of the optical module 200 (the right end in FIG. 3 ), and the opening 205 is also located at the end of the optical module 200 (the left end in FIG. 3 ). Alternatively, the opening 204 is located at the end of the optical module 200 , while the opening 205 is located at the side of the optical module 200 . Wherein, the opening 204 is an electrical port, and the golden finger of the circuit board 300 is stretched out from the electrical port 204, and is inserted into a host computer (such as the optical network terminal 100); the opening 205 is an optical port, configured to be connected to an external optical fiber 101, so that The optical fiber 101 is connected to the inside of the optical module 200 .

The combination of the upper case 201 and the lower case 202 is used to facilitate the installation of components such as the circuit board 300 into the case, and the upper case 201 and the lower case 202 can form packaging protection for these devices. In addition, when assembling components such as the circuit board 300 , it is convenient to deploy the positioning components, heat dissipation components and electromagnetic shielding components of these components, which is conducive to the implementation of automatic production.

In some embodiments, the upper shell 201 and the lower shell 202 are generally made of metal materials, which is beneficial to realize electromagnetic shielding and heat dissipation.

In some embodiments, the optical module 200 further includes an unlocking part 203 located on the outer wall of its housing, and the unlocking part 203 is configured to realize a fixed connection between the optical module 200 and the host computer, or release the connection between the optical module 200 and the host computer. fixed connection.

Exemplarily, the unlocking component 203 is located on the outer walls of the two lower side panels of the lower housing 202 , and includes an engaging component matching with a cage of the upper computer (for example, the cage 106 of the optical network terminal 100 ). When the optical module 200 is inserted into the cage of the host computer, the optical module 200 is fixed in the cage of the host computer by the engaging part of the unlocking part 203; when the unlocking part 203 is pulled, the engaging part of the unlocking part 203 moves accordingly, thereby changing The connection relationship between the engaging part and the host computer is to release the engagement relationship between the optical module 200 and the host computer, so that the optical module 200 can be pulled out from the cage of the host computer.

The circuit board 300 includes circuit traces, electronic components and chips, through which the electronic components and chips are connected together according to the circuit design, so as to realize functions such as power supply, electrical signal transmission and grounding. The electronic components may include, for example, capacitors, resistors, transistors, and metal-oxide-semiconductor field-effect transistors (Metal-Oxide-Semiconductor Field-Effect Transistor, MOSFET). Chips can include, for example, a Microcontroller Unit (MCU), a limiting amplifier (limiting amplifier), a clock data recovery chip (Clock and Data Recovery, CDR), a power management chip, and a digital signal processing (Digital Signal Processing, DSP) chip. .

The circuit board 300 is generally a rigid circuit board. Due to its relatively hard material, the rigid circuit board can also realize the bearing function, such as the rigid circuit board can carry the chip stably; the rigid circuit board can also be inserted into the electrical connector in the cage of the upper computer .

The circuit board 300 also includes gold fingers formed on the surface of its end, and the gold fingers are composed of a plurality of independent pins. The circuit board 300 is inserted into the cage 106 and electrically connected with the electrical connector in the cage 106 by the gold finger. Gold fingers can be arranged only on the surface of one side of the circuit board 300 (for example, the upper surface shown in FIG. 4 ), or can be arranged on the upper and lower surfaces of the circuit board 300, so as to adapt to the occasion where the number of pins is large. 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 some optical modules. Flexible circuit boards are generally used in conjunction with rigid circuit boards as a supplement to rigid circuit boards.

The optical transceiver component includes two light emitting components 400 and two light receiving components 500 .

The light emitting component 400 is electrically connected with the circuit board 300 . In some embodiments of the present disclosure, the light emitting component 400 may be disposed on the surface of the circuit board 300 , and may also be electrically connected to the circuit board 300 through a flexible board.

The light receiving component 500 is electrically connected with the circuit board 300 . In some embodiments of the present disclosure, the light receiving component 500 may be disposed on the surface of the circuit board 300 , and may also be electrically connected to the circuit board 300 through a flexible board.

Although both the light-emitting component 400 and the light-receiving component 500 can be arranged on the surface of the circuit board 300, and can also be electrically connected to the circuit board 300 through a flexible board, in the embodiment of the disclosure, the light-emitting component 400 and the light-receiving component 500 are connected to the circuit board 300 300 are electrically connected through the flexible board.

The light emitting component 400 is configured to emit light signals. In some embodiments of the present disclosure, a light emitting chip and an optical fiber adapter are disposed in the light emitting component 400 . The light-emitting chip emits light signals under the action of the driving signal.

The light receiving component 500 is configured to receive the light signal sent by the second optical fiber. In some embodiments of the present disclosure, a light receiving chip and an optical fiber adapter are disposed in the light receiving component 500, and the light receiving chip receives the optical signal sent by the second optical fiber and converts the optical signal into an electrical signal.

The optical fiber connector 600 is configured to realize the optical connection between the inside of the optical module and the outside of the optical module. In some embodiments of the present disclosure, one end of the optical fiber connector 600 is connected to the optical fiber inside the optical module, and the other end of the optical fiber connector 600 is connected to the optical fiber outside the optical module, thereby realizing the connection between the optical module and the optical module. Optical connection between.

One end of the optical fiber connector 600 is connected to the optical fiber inside the optical module. In certain embodiments of the present disclosure, the fiber optic adapters of the two light emitting assemblies 400 are connected to the corresponding fiber optic connectors 600 through the first optical fiber, and the fiber optic adapters of the two light receiving assemblies 500 are connected to the corresponding fiber optic connectors 600 through the first optical fiber. The two optical fibers are connected so that one end of the optical fiber connector 600 is connected to the optical fiber inside the optical module.

The optical fiber connector 600 realizes the optical connection between the inside of the optical module and the outside of the optical module, so that the optical signal emitted by the optical transmitting component is transmitted to the outside of the optical module through the optical fiber connector 600, or the optical receiving component is received by the optical module through the external The optical fiber connector 600 transmits to the optical signal in the optical module.

Both the first optical fiber and the second optical fiber are long optical fibers in the optical module. However, when the long fiber is directly connected, the curvature radius of the long fiber is too small, and the fiber loss is too large, which may easily cause fiber damage. Therefore, the optical fibers in the optical module are all wound from the direction of the optical port to the direction of the electrical port, and then wound back to the direction of the optical port from the direction of the electrical port, and then connected to the optical fiber connector corresponding to the light emitting component or the light receiving component. Due to the limited space in the optical module, when the optical module is laid out, multiple optical fibers are easily wound into the contact ground between the upper housing and the lower housing, causing damage to the optical fibers. Wherein, the long optical fiber is an optical fiber with a relatively long length. In the embodiment of the present disclosure, an optical fiber limiting assembly 700 and a fiber winding frame assembly 800 are provided.

The optical fiber limiting component 700 is arranged in the housing 202, and is not only configured to limit the position of the optical fiber at the optical port side, but also configured to fix the light emitting component 400 on the upper surface of the light receiving component 500, and fix the light receiving component 500 It is fixed on the bottom surface of the lower case 202 .

The fiber winding frame assembly 800 is disposed on the circuit board 300 and is configured to fix the optical fiber on the circuit board side.

Fig. 5 is a schematic structural diagram of an optical transceiver assembly, an optical fiber limiting assembly, a fiber winding frame assembly and a circuit board according to some embodiments. As shown in FIG. 5 , the light receiving component 500 and the light emitting component 400 are stacked. In some embodiments of the present disclosure, since the upper surface of the circuit board 300 is to lay high-frequency signal lines, the light emitting component 400 is connected to the upper surface of the circuit board 300 through a flexible board, and the light receiving component 500 is connected to the upper surface of the circuit board 300 through a flexible board. the lower surface of the circuit board 300 . The light emitting components 400 are connected to the upper surface of the circuit board 300 through a flexible board, that is, the two light emitting components 400 are arranged side by side on the first plane. The light receiving components 500 are connected to the lower surface of the circuit board 300 through a flexible board, that is, the two light receiving components 500 are arranged side by side on the second plane. And because the first plane and the second plane are different planes, that is, the light receiving component 500 and the light emitting component 400 are stacked.

Since the light receiving component 500 is laid on the bottom surface of the lower housing 202 , the light emitting component 400 stacked with the light receiving component 500 is fixed on the upper surface of the light receiving component 500 .

Fig. 6 is a schematic structural diagram of an optical fiber limiting assembly, a fiber winding frame assembly and an optical fiber according to some embodiments. Fig. 7 is a schematic structural diagram of a first angle of an optical transceiver assembly and an optical fiber limiting assembly according to some embodiments. Fig. 8 is a schematic diagram of a second angle structure of an optical transceiver assembly and an optical fiber limiting assembly according to some embodiments. Fig. 9 is a schematic diagram of a first angle structure of an optical fiber limiting assembly according to some embodiments. Fig. 10 is a schematic diagram of a second angle structure of an optical fiber limiting assembly according to some embodiments. Fig. 11 is a schematic structural diagram of a third angle of an optical fiber limiting assembly according to some embodiments. As shown in FIGS. 6-11 , the fiber limiting assembly 700 includes a connecting piece 701 , a fixing piece 702 and a fiber limiting piece 703 . In some embodiments of the present disclosure, the middle end of the connecting piece 701 is connected to the fixing piece 702 , and the two ends are respectively connected to two optical fiber limiting pieces 703 , which is configured to connect the fixing piece 702 and the optical fiber limiting piece 703 . Wherein, the two optical fiber limiting members 703 have the same structure and are arranged symmetrically.

The connection mode between the connecting piece 701 and the optical fiber limiting piece 703 and the fixing piece 702 is bonding. In this disclosure, the connecting piece 701 and the optical fiber limiting piece 703 can be connected as a whole with the fixing piece 702 by bonding, or the connecting piece 701, the optical fiber limiting piece 703 and the fixing piece 702 can be designed as an integrated structure.

The connection method between the connecting piece 701 , the optical fiber limiting piece 703 and the components inside the fixing piece 702 is bonding. In the present disclosure, the components of the connecting piece 701 can be connected as a whole by bonding, or the connecting piece 701 can be designed as an integrated structure. Similarly, the fixing member 702 can connect the components as a whole by bonding, or the fixing member 702 can be designed to form an integral structure. The optical fiber limiting member 703 can be connected as a whole by bonding, or the optical fiber limiting member 703 can be designed to form an integral structure.

The side adjacent to the light receiving component 500 in the connecting piece 701 is connected to the upper surface of the light receiving component 500, and the side adjacent to the light emitting component 400 in the connecting piece 701 is connected to the first end of the light emitting component 400. The connecting piece 701 The side adjacent to the fixing piece 702 is connected with the fixing piece 702 . Wherein, the first end of the light emitting assembly 400 is the end of the light emitting assembly 400 with the optical fiber adapter. The second end of the light emitting component 400 is the end of the light emitting component 400 connected to the circuit board.

A side of the connecting piece 701 connected to the light receiving component 500 is parallel to the upper surface of the light receiving component 500 , increasing the contact area between the connecting piece 701 and the light receiving component 500 .

A side of the connecting piece 701 connected to the light emitting component 400 is parallel to the first end of the light emitting component 400 , increasing the contact area between the connecting piece 701 and the light emitting component 400 .

The connecting piece 701 includes a first connecting portion 7011 , a second connecting portion 7012 and a third connecting portion 7013 . In certain embodiments of the present disclosure, two ends of the first connecting portion 7011 are connected to the second connecting portion 7012 and the third connecting portion 7013 respectively, and the middle is connected to the fixing member 702 . In some embodiments of the present disclosure, the first connection part 7011 includes a first connection surface 70111 , a second connection surface 70112 and a third connection surface 70113 . The first connecting surface 70111 is connected to the upper surface of the light receiving component 500 (that is, the first connecting surface 70111 is fixed on the upper surface of the light receiving component 500), the second connecting surface 70112 is connected to the first end of the light emitting component 400, and the third Both ends of the connection surface 70113 are respectively connected to the second connection portion 7012 and the third connection portion 7013 , and the middle of the third connection surface 70113 is connected to the fixing member 702 . Wherein, the second connection surface 70112, the first connection surface 70111 and the third connection surface 70113 are connected in sequence.

The first connecting surface 70111 is parallel to the upper surface of the light receiving component 500 , increasing the contact area between the first connecting portion 7011 and the light emitting component 400 .

The second connecting surface 70112 is parallel to the first end of the light emitting component 400 , increasing the contact area between the second connecting surface 70112 and the light emitting component 400 .

A fixing groove 70114 is disposed between two ends of the first connecting surface 70111 . In some embodiments of the present disclosure, the first connection surface 70111 is recessed along the direction of the upper casing 201 to form a fixing groove 70114 .

The fixing groove 70114 is configured to clamp the fiber optic adapter to the upper surface of the light receiving component 500 , so that the light emitting component 400 is fixed on the upper surface of the light receiving component 500 . In some embodiments of the present disclosure, the fixing groove 70114 and the upper surface of the light receiving component 500 define a fixing cavity 70115 . The fiber optic adapter of the light transmitting component 400 is clamped in the fixing cavity 70115 , that is, the fiber optic adapter is clamped on the upper surface of the light receiving component 500 . Since the fiber optic adapter of the light emitting component 400 is fixed on the upper surface of the light receiving component 500 , the light emitting component 400 is also fixed on the upper surface of the light receiving component 500 .

The fixing groove 70114 may be a smooth surface or not. Compared with the non-smooth surface of the fixed groove 70114, when the fixed groove 70114 is a smooth surface, there are more contact points between the fixed groove 70114 and the optical fiber adapter, so that the optical fiber adapter is stably fixed on the upper surface of the light receiving component 500, that is, the light emitting component 400 is also It is stably fixed on the upper surface of the light receiving component 500 .

The shape of the fixing groove 70114 can be any shape. When the shape of the fixing groove 70114 and the shape of the fiber optic adapter change from mismatching to matching, the number of contact points between the fixing groove 70114 and the fiber optic adapter increases, so that the fiber optic adapter is more stably fixed on the upper surface of the light receiving component 500 . For example, the cross-section of the fiber optic adapter is circular, and the shape of the fixing groove 70114 is U-shaped.

In the present disclosure, two light emitting assemblies 400 are included, and the number of fixing slots 70114 can be set to one or two. When the number of fixing groove 70114 is one, the two fiber optic adapters are fixed in the fixing groove 70114, but the contact points between the two fiber optic adapters and the fixing groove 70114 are less, the two fiber optic adapters are easy to collide, and the fiber optic adapters are easy to Slip from the fixing groove 70114. When the number of fixing grooves 70114 is 2, two fiber optic adapters are respectively fixed in one fixing groove 70114, and the contact points between the two fiber optic adapters and the fixing groove 70114 are more, and the two fiber optic adapters are not easy to collide if they are not in contact. The fiber optic adapter is not easy to slip out of the fixing groove 70114 , and the fiber optic adapter is more stably fixed on the upper surface of the light receiving component 500 .

Fig. 14 is a schematic structural diagram of an optical fiber limiting assembly, an optical transceiver assembly and a lower housing according to some embodiments. Fig. 15 is a schematic structural diagram of a lower housing, a light receiving component and a light emitting component according to some embodiments. Fig. 16 is a schematic structural diagram of a lower housing and a light receiving assembly according to some embodiments. Fig. 17 is a schematic structural diagram of a lower housing and an optical fiber limiting assembly according to some embodiments. Fig. 18 is a schematic structural diagram of a lower case according to some embodiments. As shown in FIGS. 14-18 , in the embodiment of the present disclosure, the bottom surface of the lower housing 202 is provided with a second fixing portion 2021 , two first clips 2022 , two second clips 2023 and a third clip. Connector 2024. In some embodiments of the present disclosure, the two first engaging members 2022 are both located at the first end of the lower housing 202, and both have the same structure. The two second engaging members 2023 are both located at the second end of the lower housing 202, and both have the same structure. Wherein, the first end of the lower housing 202 is the end of the lower housing 202 close to the optical port side, and the second end of the lower housing 202 is the end of the lower housing 202 close to the electrical port side.

The first clamping member 2022 includes a first clamping surface, a second clamping surface 20221 , a third clamping surface 20222 , a fourth clamping surface 20223 and a fifth clamping surface.

The first clamping surface is connected to the bottom surface of the lower casing 202 . Wherein, the first clamping surface, the second clamping surface 20221 , the third clamping surface 20222 , the fourth clamping surface 20223 and the fifth clamping surface are sequentially connected, and the third clamping surface 20222 is an inclined surface.

The fifth clamping surface, adjacent to the first end of the light receiving component 500 , is configured to limit the position of the light receiving component 500 . In some embodiments of the present disclosure, since the fifth engaging surface of the first engaging member 2022 is located at the first end of the lower housing 202 , the light receiving assembly 500 is restricted from sliding toward the optical port side. Wherein, the first end of the light receiving assembly 500 is the end of the light receiving assembly 500 with the optical fiber adapter.

The first clamping member 2022 also includes a sixth clamping surface and a seventh clamping surface. The sixth clamping surface and the seventh clamping surface are oppositely arranged, and are respectively connected with the first clamping surface, the second clamping surface 20221, the third clamping surface 20222, the fourth clamping surface 20223, and the fifth clamping surface . Wherein, the sixth clamping surface is connected with the side surface of the lower case 202 .

The second clip 2023 and the first clip 2022 define the position of the light receiving component 500 . In some embodiments of the present disclosure, the second clamping member 2023 is located at the second end of the lower housing 202, the first clamping member 2022 is located at the first end of the lower housing 202, the first clamping member 2022 and the second clamping member 2022 The two clips 2023 surround a defined cavity, and the light receiving component 500 is located in the defined cavity. Wherein, one side of the second clip 2023 is connected to the side of the lower case 202 .

The second clamping member 2023 and the second connecting surface 70112 of the connecting member 701 define the position of the light emitting component 400 . In some embodiments of the present disclosure, the first end of the light emitting component 400 is connected to the second connection surface 70112 of the connecting member 701, the second end of the light emitting component 400 is connected to the second clamping member 2023, and the second The height difference of the clamping member 2023 is greater than the height difference of the light receiving component 500, then the second connecting surface 70112 and the second clamping component 2023 limit the light emitting component 400 to the upper surface of the light receiving component 500 to reduce the number of light emitting components 400. Slide on the upper surface of the light receiving assembly 500 .

The third engaging member 2024 is located in the middle of the bottom surface of the lower housing 202 and is configured to limit the position of the light receiving assembly 500 . In some embodiments of the present disclosure, the second ends of the two light-receiving components 500 are partially connected to the third clamping member 2024, and the third clamping member 2024 is located at the second end of the lower housing 202, and the two The two second clips 2023 are located on the same straight line. The third clip 2024 works together with the second clip 2023, so that the two light receiving components 500 are limited to one side of the second clip 2023 and the third clip 2024, further reducing the light receiving component 500. slide. Wherein, the second end of the light receiving component 500 is the end of the light receiving component 500 connected with the circuit board.

The third clamping member 2024 and the second connection surface 70112 of the connecting member 701 define the position of the light emitting assembly 400 . In some embodiments of the present disclosure, the first end of the light emitting component 400 is connected to the second connection surface 70112 of the connecting member 701, and the second end of the light emitting component 400 is not only connected to the second clamping member 2023, but also to the The third clamping piece 2024 is connected, and the height difference of the third clamping piece 2024 is also greater than the height difference of the light receiving component 500, then the second connecting surface 70112, the second clamping piece 2023, and the third clamping piece 2024 connect the light The emitting component 400 is defined on the upper surface of the light receiving component 500 to reduce the sliding of the light emitting component 400 on the upper surface of the light receiving component 500 .

The height difference of the second clamping member 2023 and the height difference of the third clamping member 2024 are greater than the height difference of the light receiving component 500, then the second clamping member 2023 and the third clamping member 2024 not only limit the light emitting component 400 The position of the light receiving assembly 500 is also defined, reducing the sliding of the light receiving assembly 500 on the bottom surface of the lower housing 202, and also reducing the sliding of the light emitting assembly 400 on the upper surface of the light receiving assembly 500, increasing the light emitting assembly 400 and the light receiving assembly. Stability between components 500.

As shown in FIGS. 6-11 , the second connection portion 7012 includes a fourth connection surface, a fifth connection surface 70121 , a sixth connection surface 70122 and a seventh connection surface. In some embodiments of the present disclosure, the fourth connection surface, the fifth connection surface 70121 , the sixth connection surface 70122 and the seventh connection surface are connected in sequence.

The fourth connection surface is connected with the optical fiber limiter 703, the fifth connection surface 70121 is connected with the third clamping surface 20222, one end of the sixth connection surface 70122 is connected with the fourth clamping surface 20223, and the other end of the sixth connection surface 70122 It is connected to the upper surface of the light receiving component 500 , and the seventh connection surface is connected to both ends of the third connection surface 70113 . Wherein, the third clamping surface 20222 is an inclined surface.

The third clamping surface 20222 is parallel to the fifth connecting surface 70121, and the fourth clamping surface 20223 is parallel to the sixth connecting surface 70122, increasing the contact area between the first clamping member 2022 and the second connecting part 7012, that is, increasing the second connection The contact area between the portion 7012 and the lower housing 202 is convenient for fixing the optical fiber limiting assembly 700 to the bottom surface of the lower housing 202 .

The third connecting portion 7013 is arranged symmetrically with the second connecting portion 7012 , therefore, the structure of the third connecting portion 7013 is the same as that of the second connecting portion 7012 , which will not be repeated here.

The fixing member 702 is configured to fix the fiber limiting assembly 700 on the bottom surface of the lower housing 202 . In some embodiments of the present disclosure, the fixing member 702 includes a first fixing portion 7021 , and the first fixing portion 7021 is disposed corresponding to the second fixing portion 2021 . The first fixing part 7021 is engaged with the second fixing part 2021 of the lower casing 202 to fix the optical fiber limiting assembly 700 on the bottom surface of the lower casing 202 .

The first end of the fixing member 702 is provided with a first fixing portion 7021 , and the second end thereof is connected to the connecting member 701 . In some embodiments of the present disclosure, the first end of the fixing member 702 is provided with a first fixing portion 7021 , and the second end of the fixing member 702 is provided with two fixing columns 7022 . The bottom surfaces of the two fixing columns 7022 are connected to the second end of the fixing member 702, the first side surfaces of the two fixing columns 7022 are connected to the middle of the third connecting surface 70113, the second side surfaces of the two fixing columns 7022 are connected to the sides of the fixing column 7022 The angle between the bottom surfaces is less than 90 degrees. Wherein, both the first side and the second side are connected to the bottom surface.

The included angle between the second side surface of the fixing column 7022 and the bottom surface of the fixing column 7022 is less than 90 degrees, which facilitates heat dissipation of the optical fiber adapter.

The bottom surface of the fixing member 702 is parallel to the bottom surface of the lower case 202 . The bottom surface of the fixing piece 702 is parallel to the bottom surface of the lower casing 202 , which increases the contact area between the bottom surface of the fixing piece 702 and the bottom surface of the lower casing 202 , and increases the stability of the bottom surface of the fixing piece 702 and the lower casing 202 . Wherein, the bottom surface of the fixing member 702 refers to a side of the fixing member 702 that is close to the bottom surface of the lower housing 202 .

The shape of the first fixing part 7021 and the shape of the second fixing part 2021 may be the same or different. When the shape of the first fixing part 7021 is different from that of the second fixing part 2021, as long as the size of the first fixing part 7021 is larger than the size of the second fixing part 2021, the second fixing part 2021 can also be inserted into the first fixing part 7021 . Due to the different shapes of the first fixing part 7021 and the second fixing part 2021, there are contact points between the first fixing part 7021 and the second fixing part 2021, but there are few contact points, so that the second fixing part 2021 is easy to be fixed from the first fixing part 2021. The part 7021 falls off, reducing the stability of the optical fiber limiting assembly 700 and the lower housing 202 .

When the shape of the first fixing portion 7021 is the same as that of the second fixing portion 2021 , it is sufficient that the size of the first fixing portion 7021 is greater than or equal to the size of the second fixing portion 2021 . When the size of the first fixing part 7021 is slightly larger than that of the second fixing part 2021 , the number of contact points between the second fixing part 2021 and the first fixing part 7021 increases. Therefore, although the second fixing part 2021 is also easy to fall off from the first fixing part 7021, it is still more difficult for the second fixing part 2021 to fall off compared to the case where the first fixing part 7021 and the second fixing part 2021 have different shapes. Falling off from the first fixing part 7021 increases the stability of the optical fiber limiting assembly 700 and the lower housing 202 . When the size of the first fixing part 7021 is equal to the size of the second fixing part 2021, there is no gap between the second fixing part 2021 and the first fixing part 7021 (the most contact points), so that the second fixing part 2021 is not easy to move from the first The fixing part 7021 falls off, which further increases the stability of the optical fiber limiting assembly 700 and the lower housing 202 .

The first fixing portion 7021 can be a fixing hole, or a fixing protrusion or the like. When the first fixing portion 7021 is a fixing hole, the second fixing portion 2021 is a fixing protrusion. When the first fixing portion 7021 is a fixing protrusion, the second fixing portion 2021 is a fixing hole. The first fixing part 7021 and the second fixing part 2021 can also have other structures, as long as they are arranged correspondingly, and the two are engaged as a whole. Accordingly, the present disclosure is not limiting.

The fiber limiting member 703 is configured to limit the position of the optical fiber at the optical port side. In some embodiments of the present disclosure, the optical fiber limiting member 703 includes a first limiting protrusion 7032 . The first limiting protrusion 7032 is configured to limit the position of the optical fiber at the optical port side, which facilitates fixing the optical port side optical fiber, prevents the optical port side optical fiber from entering the contact ground between the upper housing and the lower housing, and reduces damage to the optical fiber.

Because the optical fiber is wound from the direction of the optical port to the direction of the electrical port, and then wound back to the direction of the optical port from the direction of the electrical port. The first limiting protrusion 7032 not only limits the optical fiber that goes from the direction of the optical port to the direction of the electrical port, but also limits the optical fiber that goes back from the direction of the electrical port to the direction of the optical port.

The optical fiber limiting member 703 also includes a fiber winding portion 7031 . In some embodiments of the present disclosure, the fiber winding portion 7031 is fixed on the bottom surface of the lower housing 202 and includes an eighth connection surface 70311 , a ninth connection surface 70312 and a tenth connection surface 70313 . Wherein, the eighth connection surface 70311, the ninth connection surface 70312 and the tenth connection surface 70313 are connected in sequence.

The eighth connection surface 70311 is connected to the bottom surface of the lower case 202 (that is, the fiber winding portion 7031 is fixed to the bottom surface of the lower case 202), the ninth connection surface 70312 is connected to the second clamping surface 20221, and the tenth connection surface 70313 is connected to the bottom surface of the lower case 202. A first limiting protrusion 7032 extends from one end along the direction of the upper housing, and a second end of the tenth connecting surface 70313 is connected to the fourth connecting surface of the connecting member 701 .

The fiber winding part 7031 is configured as a fiber winding. In some embodiments of the present disclosure, when the optical fiber is wound from the direction of the optical port to the direction of the electrical port, the optical fiber does not pass through the fiber winding part 7031; It is connected with the optical fiber connector 600 through the first limiting protrusion 7032 .

The eighth connection surface 70311 is parallel to the bottom surface of the lower case 202 . The eighth connection surface 70311 is in parallel contact with the bottom surface of the lower housing 202, increasing the contact surface between the optical fiber limiting member 703 and the lower housing 202, so that the optical fiber limiting component 700 is more stably fixed on the bottom surface of the lower housing 202, further enabling The light receiving component 500 is more stably fixed on the bottom surface of the lower housing 202 .

The connecting piece 701 of the optical fiber limiting component 700 fixes the light emitting component 400 on the upper surface of the light receiving component 500 .

The fixing part 702 of the fiber limiting assembly 700 fixes the fiber limiting assembly 700 on the bottom surface of the lower housing 202 . Since the optical fiber limiting component 700 fixes the light receiving component 500 on the bottom surface of the lower housing 202 , the fixing member 702 fixes the light receiving component 500 on the bottom surface of the lower housing 202 . In some embodiments of the present disclosure, the eighth connection surface 70311 is connected to the bottom surface of the lower case 202, the light receiving component 500 is connected to the bottom surface of the lower case 202, and the third connection surface 70113 and the sixth connection surface 70122 are both connected to the bottom surface of the lower case 202. The upper surface of the light receiving assembly 500 is connected. When the first fixing portion 7021 is fixed on the bottom of the lower housing 202 , the fiber limiting assembly 700 is fixed on the bottom of the lower housing 202 , and the optical fiber limiting assembly 700 also fixes the light receiving assembly 500 on the bottom of the lower housing 202 .

The optical fiber limiting member 703 of the optical fiber limiting component 700 fixes the optical fiber at the optical port side.

In this disclosure, the existence of the optical fiber limiting assembly 700 not only limits the optical fiber at the optical port side to the optical fiber limiting assembly 700, but also fixes the optical fiber at the optical port side to prevent the optical fiber from entering the contact between the upper housing and the lower housing, reducing the The optical fiber is damaged; the light emitting assembly 400 is also fixed on the upper surface of the light receiving assembly 500, and the light receiving assembly 500 is fixed on the bottom surface of the lower housing 202, so as to reduce the shaking of the light emitting assembly 400 and the light receiving assembly 500.

Fig. 12 is a schematic structural view of a fiber bobbin assembly and a circuit board according to some embodiments. Fig. 13 is a schematic structural view of a fiber reel assembly according to some embodiments. As shown in FIGS. 12 and 13 , the fiber winding rack assembly 800 includes a fourth clamping member 801 , a fiber winding member 802 and a supporting groove 803 . In some embodiments of the present disclosure, the fourth clamping member 801 is provided with a clamping interface 8011 configured to clamp the fiber winding frame assembly 800 on the circuit board 300 . In certain embodiments of the present disclosure, a locking recess 301 is provided on a side of the circuit board 300 , and the locking recess 301 corresponds to the card interface 8011 of the fourth locking member 801 . When the card interface 8011 of the fourth clamping member 801 is clamped at the clamping recess 301 , the fourth clamping member 801 is clamped on the circuit board 300 , and the winding frame assembly 800 is clamped on the circuit board 300 .

In order to limit the position of the optical fiber, in the embodiment of the present disclosure, the fourth engaging member 801 extends a third limiting protrusion 8012 along the direction of the upper housing 201 . In some embodiments of the present disclosure, the third limiting protrusion 8012 is disposed at an end of the fourth clamping member 801 away from the fiber wrapping member 802 , and is configured to limit the position of the optical fiber on the side of the circuit board 300 .

The fiber wrapping member 802 is connected to the fourth clamping member 801 , and a second limiting protrusion 8021 is provided at a position away from the fourth clamping member 801 , configured to fix the optical fiber on the side of the circuit board 300 . In some embodiments of the present disclosure, the two fourth clamping parts 801 are respectively connected to two ends of the fiber winding part 802 . Since the two fiber winding parts 802 are respectively connected to the two ends of the fourth clamping part 801 , the position of the fiber winding part 802 away from the fourth clamping part 801 is the middle position of the fiber winding part 802 . A plurality of second limiting protrusions 8021 are arranged at the middle position of the fiber winding member 802 . The second limiting protrusion 8021 is configured to limit the position of the optical fiber on the side of the circuit board 300 and fix the optical fiber at the position.

In order to isolate the optical fiber on the side of the circuit board 300 from the circuit board 300 , in the embodiment of the present disclosure, a support plate 8022 is also provided. The supporting plate 8022 is disposed between the plurality of second limiting protrusions 8021 and is configured to support the optical fiber on the circuit board side. Since the plurality of second position-limiting protrusions 8021 can easily fix the optical fiber on the circuit board 300 side directly on the circuit board 300 , this will easily cause problems of heat dissipation of the circuit board 300 and placement of components on the circuit board 300 . The support plate 8022 arranged between the plurality of second limiting protrusions 8021 can isolate the optical fiber on the circuit board 300 from the circuit board 300, which not only reduces the heat dissipation problem of the circuit board 300, but also solves the problem of device placement on the circuit board 300 .

The connection method between the fiber winding part 802 and the fourth clamping part 801 is bonding. In the embodiment of the present disclosure, the fiber winding part 802 and the fourth clamping part 801 can be connected as a whole by bonding, or the fiber winding part 802 and the fourth clamping part 801 can be designed as an integrated structure.

The supporting groove 803 is disposed at the connection between the fiber wrapping component 802 and the fourth clamping component 801 , configured to support the optical fiber on the circuit board 300 . Since the circuit board 300 is provided with high-frequency signal lines and many components, optical fibers cannot be laid directly on the surface of the circuit board 300 . The support groove 803 separates the optical fiber from the surface of the circuit board 300, which not only provides space for placing high-frequency signal lines and many devices, but also facilitates heat dissipation of the circuit board 300. Therefore, in the embodiment of the present disclosure, a plurality of supporting grooves 803 are provided between the fiber winding part 802 and the fourth engaging part 801 .

The presence of the fiber wrapping frame assembly 800 wraps and fixes the light on the side of the circuit board, further prevents the optical fiber from entering the contact ground between the upper housing and the lower housing, and further reduces damage to the optical fiber.

As shown in Figure 6, when winding the fiber, firstly: the optical fiber protrudes from the first stop protrusion 7032 on the first side of the fiber stop assembly 700; 8012, support groove 803, second limit protrusion 8021 and support plate 8022; again, enter the second limit protrusion 8021, support groove 803 and third limit protrusion on the second side of the winding frame assembly 800 Then, enter the fiber winding part 7031 on the second side of the optical fiber limiting assembly 700; finally, enter the first limiting protrusion 7032 on the second side of the optical fiber limiting assembly 700 and reach the corresponding optical fiber connector.

The first limit protrusion 7032, the second limit protrusion 8021, the third limit protrusion 8012, the support plate 8022 and the support groove 803 can not only provide a unified fiber winding path for the optical fiber, but also make the inner winding of the optical module The optical fiber has consistency; the optical fiber can also be fixed to prevent the optical fiber from entering the contact ground between the upper shell and the lower shell, and reduce the damage of the optical fiber.

In this disclosure, the optical fiber on the optical port side is fixed by the optical fiber limiting assembly 700, and the optical fiber on the circuit board side is fixed by the fiber winding frame assembly 800, so as to prevent the optical fiber from entering the contact ground between the upper housing and the lower housing, and reduce damage to the optical fiber.

Fig. 19 is a schematic structural diagram of an optical fiber and a light receiving component according to some embodiments. Fig. 20 is a schematic structural diagram of a light receiving component according to some embodiments. As shown in FIGS. 19-20 , the light receiving component 500 is provided with a card slot 5021 . In some embodiments of the present disclosure, the light receiving assembly 500 includes a first housing 501 and a second housing 502, the first housing 501 is snapped onto the second housing 502, and the upper surface of the first housing 501 It is connected with the light emitting assembly 400 and the connecting piece 701, the bottom surface of the second housing 502 is connected with the bottom surface of the lower housing 202 (that is, the second housing 502 is fixed on the bottom surface of the lower housing 202), and the upper surface of the second housing 502 The surface is provided with a card slot 5021 .

The card slot 5021 is configured to support the optical fiber connected with the light receiving component 500 . In some embodiments of the present disclosure, since the slot 5021 is located at the end of the second housing 502 connected to the optical fiber, the optical fiber connected to the light receiving component 500 is placed on the slot 5021 . The slot 5021 supports the optical fiber connected to the light receiving assembly 500, so that the optical fiber and the light receiving assembly are at the same level, reducing the loss of the optical fiber from the upper surface of the light receiving assembly 500 to protect the optical fiber.

Figure 21 is a cross-sectional view of a light module according to some embodiments. As can be seen from FIG. 21 , the optical module further includes a first conductive pad 2025 and a second conductive pad 2012 . In some embodiments of the present disclosure, the first conductive gasket 2025 is clamped on the bottom surface of the lower housing 202 and is configured to shield ionizing radiation. In some embodiments of the present disclosure, the first conductive gasket 2025 is engaged in the first fixing groove on the bottom surface of the lower housing 202 . The first fixing groove is configured to place the optical fiber connector 600 . When the first conductive gasket 2025 is snapped into the first fixing groove, the first conductive gasket 2025 is in contact with the optical fiber connector 600 , so that the first conductive gasket 2025 shields the ionizing radiation of the optical fiber connector 600 .

The second conductive gasket 2012 is clamped on the inner surface of the upper casing 201 and is configured to shield ionizing radiation. In some embodiments of the present disclosure, the second conductive gasket 2012 is engaged in the second fixing groove on the inner surface of the upper housing 201 . The second fixing groove cooperates with the first fixing groove and is configured to place the optical fiber connector 600 . When the second conductive gasket 2012 is snapped into the second fixing groove, the second conductive gasket 2012 is in contact with the optical fiber connector 600 , so that the second conductive gasket 2012 shields the ionizing radiation of the optical fiber connector 600 .

As shown in FIG. 21 , the optical module further includes an optical port claw 900 . In some embodiments of the present disclosure, the optical port claw 900 is engaged with the inner surface of the upper housing 201 and is configured to fix the optical fiber outside the optical module to the optical module. In some embodiments of the present disclosure, the optical port claw 900 is located at the optical port of the upper housing 201 . When an optical fiber outside the optical module is inserted into the optical fiber connector 600 at the optical port of the optical module, the optical port claw 900 fixes the optical fiber on the optical module.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them; 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 Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present disclosure.

The above is only a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Anyone familiar with the technical field who thinks of changes or substitutions within the technical scope of the present disclosure should cover all within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be determined by the protection scope of the claims.

Claims (19)

1. An optical module, comprising:

   The lower shell forms a shell with an optical port with the upper shell;

   a circuit board arranged in the housing;

   a light receiving component, laid on the bottom surface of the lower case, electrically connected to the circuit board, and configured to receive light signals;

   a light transmitting component, stacked with the light receiving component, electrically connected to the circuit board, including an optical fiber adapter, the light transmitting component is configured to transmit an optical signal;

   An optical fiber limiting assembly, disposed in the housing, includes a connecting piece and a fixing piece, the optical fiber limiting assembly is configured to fix the light emitting assembly on the upper surface of the light receiving assembly, and fix the light emitting assembly on the upper surface of the light receiving assembly The light receiving component is fixed on the bottom surface of the lower casing;

   The connecting piece is connected with the fixing piece and fixed on the upper surface of the light receiving component, and the connecting piece is provided with a fixing groove;

   The fixing groove is configured to clamp the optical fiber adapter on the upper surface of the light receiving component, so that the light emitting component is fixed on the upper surface of the light receiving component;

   The fixing member is fixed on the bottom surface of the lower case and is configured to fix the light receiving component on the bottom surface of the lower case.
2. The optical module according to claim 1, wherein the fixing member comprises a first fixing portion;

   The first fixing part is clamped to the second fixing part on the bottom surface of the lower casing, and is configured to fix the light receiving component on the bottom surface of the lower casing.
3. The optical module according to claim 1, wherein the connecting member comprises a first connecting part, a second connecting part and a third connecting part, and the second connecting part and the third connecting part are arranged symmetrically, wherein,

   Both ends of the first connecting part are respectively connected to the second connecting part and the third connecting part, including a first connecting surface, a second connecting surface and a third connecting surface;

   The second connection surface, the first connection surface, and the third connection surface are sequentially connected;

   The first connection surface is connected to the upper surface of the light receiving component;

   The second connection surface is connected to the first end of the light emitting component;

   The third connection surface is connected to the second connection part and the third connection part at both ends, and connected to the fixing part in the middle, and is provided with the fixing groove;

   The second connection part includes a fourth connection surface, a fifth connection surface, a sixth connection surface and a seventh connection surface;

   The fourth connection surface, the fifth connection surface, the sixth connection surface and the seventh connection surface are sequentially connected;

   The sixth connection surface is connected to the upper surface of the light receiving component;

   The seventh connection surface is connected to the third connection surface.
4. The optical module according to claim 3, wherein, the bottom surface of the lower case is further provided with a first engaging member;

   The first clamping member includes a first clamping surface, a second clamping surface, a third clamping surface and a fourth clamping surface;

   The first clamping surface, the second clamping surface, the third clamping surface and the fourth clamping surface are sequentially connected;

   The first clamping surface is connected to the bottom surface of the lower case;

   The third clamping surface is connected to the fifth connecting surface and is an inclined surface;

   The fourth clamping surface is connected to the sixth connecting surface.
5. The optical module according to claim 4, wherein, the bottom surface of the lower housing is further provided with a second engaging member;

   The second clip is located at the second end of the light receiving component, and defines the position of the light receiving component with the first clip, and defines the position of the light emitting component with the second connecting surface. Location.
6. The optical module according to claim 5, wherein the height difference of the second clamping member is greater than the height difference of the light receiving component.
7. The optical module according to claim 4, wherein the optical fiber limiting assembly further comprises an optical fiber limiting member;

   The optical fiber limiting member is connected to one end of the connecting member, and is provided with a fiber winding portion;

   The fiber winding portion includes an eighth connection surface, a ninth connection surface and a tenth connection surface;

   The eighth connection surface is connected to the bottom surface of the lower case;

   The ninth connection surface is connected to the second clamping surface;

   The first end of the tenth connecting surface extends a first limiting protrusion along the direction of the upper casing, and the second end thereof is connected to the fourth connecting surface;

   The first limiting protrusion is configured to limit the position of the optical fiber at the optical port side.
8. The optical module according to claim 3, wherein the first connection surface is parallel to the upper surface of the light receiving component.
9. The optical module according to claim 7, wherein the eighth connection surface is parallel to the bottom surface of the lower case, and the ninth connection surface is parallel to the second clamping surface.
10. The optical module according to claim 1, further comprising a fiber winding frame assembly:

    The fiber winding frame assembly includes a fourth clamping member and a fiber winding member, wherein,

    The fourth clamping member is provided with a card interface corresponding to the clamping depression on the side of the circuit board, and is configured to clamp the fiber winding frame assembly on the circuit board;

    The fiber winding member is connected to the fourth clamping member, and a second limiting protrusion is provided at a position away from the fourth clamping member, configured to fix the optical fiber on the circuit board side.
11. An optical module, comprising:

    The lower shell forms a shell with an optical port and an electrical port with the upper shell;

    a circuit board arranged in the housing;

    a light emitting component, disposed in the housing, electrically connected to the circuit board, connected to the first optical fiber, and configured to emit an optical signal;

    The light receiving component is arranged in the housing, is electrically connected to the circuit board, is connected to the second optical fiber, and is configured to receive an optical signal sent by the second optical fiber, wherein the first optical fiber and the second optical fiber The optical fiber is wound from the direction of the optical port to the direction of the electrical port, and then from the direction of the electrical port to the direction of the optical port;

    An optical fiber limiting component is arranged in the housing and is configured to limit the position of the optical fiber at the optical port side;

    The fiber winding frame assembly is arranged on the circuit board and is configured to fix the optical fiber at the side of the circuit board.
12. The optical module according to claim 11, wherein the optical fiber limiting assembly comprises an optical fiber limiting member;

    The optical fiber limiting member includes a fiber winding portion;

    The fiber winding part is fixed on the bottom surface of the lower casing, and a first limiting protrusion extends along the direction of the upper casing, and is configured as fiber winding;

    The first limiting protrusion is configured to limit the position of the optical fiber at the optical port side.
13. The optical module according to claim 12, wherein the optical fiber limiting member further includes a fixing member and a connecting member;

    The fixing part is fixed on the bottom surface of the lower case and is configured to fix the light receiving component on the bottom surface of the lower case;

    The connecting piece is connected with the fixing piece, fixed on the upper surface of the light receiving component, and is provided with a fixing groove;

    The fixing groove is configured to clamp the fiber optic adapter to the upper surface of the light receiving component, so that the light emitting component is fixed on the upper surface of the light receiving component.
14. The optical module according to claim 11, wherein the fiber winding frame assembly includes a fourth clamping member and a fiber winding member, wherein,

    The fourth clamping member is provided with a card interface corresponding to the clamping depression on the side of the circuit board, and is configured to clamp the fiber winding frame assembly on the circuit board;

    The fiber winding member is connected to the fourth clamping member, and a second limiting protrusion is provided at a position away from the fourth clamping member, configured to fix the optical fiber on the circuit board side.
15. The optical module according to claim 14, wherein the fiber winding frame assembly further comprises a support plate and a support groove;

    The supporting plate is arranged between the second limiting protrusions and is configured to support the optical fiber on the circuit board side;

    The supporting groove is disposed at the connection between the fiber winding member and the fourth clamping member, and is configured to support the circuit board-side optical fiber.
16. The optical module according to claim 14, wherein the fiber winding frame assembly further comprises a third limiting protrusion;

    The third limiting protrusion is disposed at one end of the fourth clamping member and is configured to limit the position of the optical fiber on the circuit board side.
17. The optical module according to claim 11, wherein the light receiving component is provided with a card slot;

    The card slot is configured to support the optical fiber connected with the light receiving component.
18. The optical module according to claim 11, wherein the optical port is a CS optical port.
19. The optical module according to claim 11, wherein the two light emitting assemblies are arranged side by side, and the two light receiving assemblies are also arranged side by side.

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