An optical module

Abstract

The embodiment of the utility model provides a kind of optical module, it is related to signal conversion technical field.The optical module includes circuit board, first light emitting component and second light emitting component, and the end of circuit board is provided with optical connector, first light emitting component is set to circuit board, and first light emitting component is connected with optical connector by first optical fiber;Second light emitting component is set to circuit board, and second light emitting component and first light emitting component are arranged in parallel along the length direction of optical module, and second light emitting component is connected with optical connector by second optical fiber.The optical module uses two small size light emitting components to be arranged in parallel along length direction, to replace a larger light emitting component, so that the width size of the optical module produced is unchanged, so more use scenarios can be adapted.

Description

Technical Field

[0001] This utility model relates to the field of signal conversion technology, and more specifically, to an optical module. Background Technology

[0002] Optical modules are the core components in optical communication systems that enable the conversion between optical signals and electrical signals. Traditional optical modules are pluggable, standardized, and standalone devices.

[0003] An optical module typically includes an optical transmitter, a PCBA, a DSP chip, and an optical interface. Existing optical modules place the optical transmitter on the PCBA. When transmitting a large number of light source signals, a larger optical transmitter is required. However, a larger optical transmitter can easily exceed the width specifications, resulting in a wider overall optical module that cannot adapt to more confined usage scenarios. Utility Model Content

[0004] This invention provides an optical module that meets transmission requirements by arranging multiple optical devices side by side along the length direction without changing the width of the optical module.

[0005] The embodiments of this utility model can be implemented as follows: An embodiment of this utility model provides an optical module, which includes: The circuit board has an optical connector at one end. A first optical transmitting component is disposed on a circuit board and is connected to an optical connector via a first optical fiber. The second optical emitting component is mounted on the circuit board and is arranged side by side with the first optical emitting component along the length of the optical module. The second optical emitting component is connected to the optical connector through the second optical fiber.

[0006] Optionally, a clearance groove is provided on the top of the second optical transmitting component, and the first optical fiber passes through the clearance groove.

[0007] Optionally, the cross-sectional shape of the clearance groove is V-shaped.

[0008] Optionally, the width of the clearance groove gradually decreases from the first end to the second end; wherein the first end is the end closer to the first optical emitting component, and the second end is the end closer to the optical connector.

[0009] Optionally, the edge of the clearance groove is chamfered.

[0010] Optionally, the clearance slot is close to the first side of the second light emitting component, and the distance between the clearance slot and the first side is 4~7mm.

[0011] Optionally, the width of the clearance groove is 1.45~3.2mm.

[0012] Optionally, the optical module also includes an upper cover, a lower cover, and an unlocking component. The upper cover and the lower cover are connected, and the unlocking component is located on the side of the lower cover and / or the upper cover, and the unlocking component is movable relative to the lower cover and / or the upper cover.

[0013] Optionally, the unlocking component includes an unlocking fastener and a spring, the spring being fixed to the side of the lower cover and / or the upper cover, the unlocking fastener being connected to the spring, and the spring being used to actuate the unlocking fastener to reset.

[0014] Optionally, the side of the lower cover and / or the upper cover is provided with a spring groove, the spring is disposed in the spring groove, and the unlocking fastener is provided with a stop post, the stop post being connected to the spring.

[0015] The beneficial effects of this utility model embodiment: The optical module includes a circuit board, a first optical emitting component, and a second optical emitting component. An optical connector is located at one end of the circuit board. The first optical emitting component is mounted on the circuit board and connected to the optical connector via a first optical fiber. The second optical emitting component is also mounted on the circuit board, arranged side-by-side with the first optical emitting component along the length of the optical module. The second optical emitting component is connected to the optical connector via a second optical fiber. This optical module uses two smaller optical emitting components arranged side-by-side along the length to replace a larger optical emitting component, thus maintaining the same width of the manufactured optical module and adapting to a wider range of application scenarios. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an exploded view of the optical module provided in an embodiment of this utility model; Figure 2 This is a top view of the optical module provided in an embodiment of the present invention; Figure 3 This is a partial schematic diagram of the first optical fiber at the clearance groove provided in an embodiment of the present invention; Figure 4 This is a cross-sectional schematic diagram of the clearance groove provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the spring groove provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the unlocking fastener provided in an embodiment of the present utility model; Figure 7 This is a schematic diagram showing the cooperation between the stop post and the spring of the unlocking fastener provided in an embodiment of this utility model; Figure 8 This is a schematic diagram showing the optical module being plugged into and locked with an external device in an embodiment of this utility model. Figure 9 This is a schematic diagram illustrating the locking and unlocking of the optical module and external device provided in an embodiment of this utility model. Figure 10 This is a schematic diagram showing the unlocking fastener provided in an embodiment of the present utility model with a handle; Figure 11 This is a schematic diagram of an unlocking fastener without a handle provided in an embodiment of this utility model.

[0018] Icons: 1-Circuit board; 10-Optical connector; 11-First optical emitting assembly; 111-First optical fiber; 12-Second optical emitting assembly; 121-Second optical fiber; 122-Allowing groove; 2-Upper cover; 3-Lower cover; 30-Spring groove; 31-Step; 40-Unlocking fastener; 401-Stop post; 402-Top protrusion; 41-Spring; 5-Screw; 6-Spring piece. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0024] The terms “comprising,” “including,” or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase “comprising one…” does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0025] Unless otherwise explicitly specified and limited, terms such as "setup" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0027] An embodiment of this utility model provides an optical module that can maintain the same overall width while transmitting a large number of light source signals, thereby solving the problems described in the background art. It will be described in detail below.

[0028] Please refer to Figures 1 to 4The optical module includes a circuit board 1, a first optical emitting component 11, and a second optical emitting component 12. An optical connector 10 is located at one end of the circuit board 1. The first optical emitting component 11 is mounted on the circuit board 1 and connected to the optical connector 10 via a first optical fiber 111. The second optical emitting component 12 is mounted on the circuit board 1 and arranged side-by-side with the first optical emitting component 11 along the length of the optical module. The second optical emitting component 12 is connected to the optical connector 10 via a second optical fiber 121. This optical module uses two smaller optical emitting components arranged side-by-side along the length to replace a larger optical emitting component, maintaining the same width dimension of the manufactured optical module and thus allowing it to adapt to more application scenarios.

[0029] Since both the first optical emitting component 11 and the second optical emitting component 12 need to transmit light source signals through the optical connector 10, which is located at one end of the circuit board 1, the first optical emitting component 11, which is farther from the optical connector 10, needs a longer first optical fiber 111 to transmit the light source signals. The connection between the first optical fiber 111 and the optical connector 10 requires passing through the second optical emitting component 12. To prevent the first optical fiber 111 from affecting the heat dissipation of the second optical emitting component 12, a clearance slot 122 needs to be opened on the top of the second optical emitting component 12, and the first optical fiber 111 is arranged within the clearance slot 122. In this embodiment, the circuit board 1 can be a PCBA assembly, including a PCB board and components mounted on the PCB board.

[0030] The cross-sectional shape of the clearance groove 122 can be V-shaped, or U-shaped or other shapes, and is not limited thereto. Both ends of the clearance groove 122 pass through the second optical emitting component 12. One end of the clearance groove 122 is wider and the other end is narrower. That is, the width of the clearance groove 122 gradually narrows from the first end to the second end. The first end is the end closer to the first optical emitting component 11, and the second end is the end closer to the optical connector 10. This arrangement is because multiple first optical fibers 111 are connected to the first optical emitting component 11 in a divergent manner. The wider first end of the clearance groove 122 can meet the minimum bending radius requirement of the first optical fibers 111, while the narrower second end of the clearance groove 122 is to facilitate the connection of the multiple first optical fibers 111 to the optical connector 10 after they are bundled together.

[0031] Optionally, the width of the clearance groove 122 can be 1.45~3.2mm. For example, the first end of the clearance groove 122 is 3.2mm and the second end is 1.45mm; or, for another example, the first end of the clearance groove 122 is 3mm and the second end is 1.5mm. Of course, the width of the first and second ends of the clearance groove 122 can be set as needed and is not limited thereto.

[0032] The groove edge of the clearance groove 122 is also provided with a chamfer, that is, the groove edge of the clearance groove 122 is rounded or beveled, which makes it easy to put multiple first optical fibers 111 into the clearance groove 122 without damaging the first optical fibers 111.

[0033] Since both the first optical emitting component 11 and the second optical emitting component 12 need to be connected to the top cover 2 for heat dissipation, opening a clearance groove 122 on the top of the second optical emitting component 12 would reduce the thermally conductive contact area between the second optical emitting component 12 and the top cover 2. Therefore, to ensure the heat dissipation requirements of the second optical emitting component 12, the clearance groove 122 is opened at one end close to the first side of the second optical emitting component 12, and the distance between the clearance groove 122 and the first side of the second optical emitting component 12 is 4~7mm. This satisfies both the minimum bending radius requirement of the first optical fiber 111 and the heat dissipation requirements of the second optical emitting component 12. Optionally, the distance between the clearance groove 122 and the first side of the second optical emitting component 12 (the side of the clearance groove 122 closer to the edge of the second optical emitting component 12) can be 4mm, 5mm, 6mm, 7mm, etc.

[0034] Continue to refer to Figure 1 The optical module also includes an upper cover 2, a lower cover 3, and an unlocking component. The upper cover 2 and the lower cover 3 are connected by screws 5. The upper cover 2 and the lower cover 3 provide mounting positions for the PCBA assembly and the optical connector 10, and protect their internal components. The unlocking component is located on the side of the lower cover 3 and / or the upper cover 2. The unlocking component is movable relative to the lower cover 3 and / or the upper cover 2. The unlocking component is used to lock and unlock the optical module when it is connected to an external device.

[0035] refer to Figures 5 to 7 The unlocking assembly includes an unlocking fastener 40 and a spring 41. A spring groove 30 is provided on the side plate of the lower cover 3. The spring 41 is arranged within the spring groove 30, with one end fixed thereto. A stop post 401 is provided on the inner wall of the unlocking fastener 40, and the spring 41 connects with the stop post 401, thereby providing power for the unlocking fastener 40 to reset. Alternatively, the spring groove 30 can also be located on the side of the upper cover 2, or simultaneously on the sides of both the upper cover 2 and the lower cover 3.

[0036] refer to Figure 8 and Figure 9The end of the unlocking fastener 40 is also provided with a top protrusion 402. When the optical module is plugged into the interface of an external device, the spring piece 6 at the interface of the external device is locked at the step 31 of the upper cover 2 or the lower cover 3, at which time the optical module and the external device are locked. When the unlocking fastener 40 is pulled along the length of the optical module, the top protrusion 402 will push open the spring piece 6, causing the spring piece 6 to disengage from the step 31, thereby unlocking the optical module and the external device. Of course, the two sides of the top protrusion 402 are set as bevels, which makes it easier to slide and push open the spring piece 6, which is not easy to damage the spring piece 6 and makes unlocking easier.

[0037] When the unlocking buckle 40 is pulled, the stop post 401 compresses the spring 41, thereby storing elastic energy in the spring 41. When the unlocking buckle 40 is released, the spring 41 releases its elastic energy and pushes the unlocking buckle 40 to reset.

[0038] The unlocking fastener 40 can be configured in various forms; for example, it can be made of plastic, or it can be configured with a handle, such as... Figure 10 The unlocking fastener 40 can also be designed as a handle-less structure, such as... Figure 11 .

[0039] Traditional optical module PCBA components include optical transceiver units and digital signal processing (DSP) chips. The optical transceiver units are responsible for receiving and transmitting light source signals. The optical receiving unit converts the received light source signals into electrical signals and transmits them to the DSP chip for digital signal processing. The optical transmitting unit converts the digital signals received from the DSP chip back into light source signals, thus realizing photoelectric and electro-optical signal conversion. Because traditional optical modules contain DSP chips, the link distance between the DSP chip and the switch's ASIC chip is long, resulting in high transmission loss and high overall power consumption of the switch.

[0040] Therefore, in this embodiment, the optical module employs a co-packaging process to mount the first optical emitting component 11 and the second optical emitting component 12 onto the PCBA assembly. This eliminates the need for a separate DSP chip on the PCBA assembly, integrating the DSP chip into the switch's ASIC chip. Furthermore, the silicon photonic modulator is distributed around the ASIC chip, shortening the transmission distance and significantly reducing signal transmission loss on the PCB board, thereby substantially reducing power consumption. Specifically, the first optical emitting component 11 and the second optical emitting component 12 transmit light source signals to the silicon photonic modulator, which are then modulated together by the ASIC chip to achieve signal conversion.

[0041] In this embodiment, the structure and layout of the PCBA component, optical connector 10, first optical emitting component 11, second optical emitting component 12, and unlocking fastener 40 can refer to the prior art. This application does not improve these components, and the working principle of the optical module can also refer to the prior art, which will not be elaborated here.

[0042] The optical module of this embodiment uses two small-sized optical emitting components arranged side by side along the length direction to replace a larger optical emitting component, so that the width of the produced optical module remains unchanged, thereby adapting to more application scenarios. It is worth mentioning that when the optical module transmits a variety of light source signals in large quantities, more than two optical emitting components can be set, all of which can be arranged side by side, and clearance slots 122 are formed on the corresponding optical emitting components.

[0043] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An optical module, characterized in that, include: Circuit board (1), with an optical connector (10) provided at one end of the circuit board (1); A first optical emitting component (11) is disposed on the circuit board (1) and is connected to the optical connector (10) via a first optical fiber (111). The second optical emitting component (12) is disposed on the circuit board (1). The second optical emitting component (12) and the first optical emitting component (11) are arranged side by side along the length of the optical module. The second optical emitting component (12) is connected to the optical connector (10) through the second optical fiber (121).

2. The optical module according to claim 1, characterized in that, The top of the second optical emitting component (12) is provided with a clearance groove (122), and the first optical fiber (111) passes through the clearance groove (122).

3. The optical module according to claim 2, characterized in that, The cross-sectional shape of the clearance groove (122) is V-shaped.

4. The optical module according to claim 2, characterized in that, The width of the clearance groove (122) gradually narrows from the first end to the second end; wherein the first end is the end close to the first light emitting component (11), and the second end is the end close to the light connector (10).

5. The optical module according to claim 2, characterized in that, The edge of the clearance groove (122) is chamfered.

6. The optical module according to claim 2, characterized in that, The clearance groove (122) is close to the first side of the second light emitting component (12), and the distance between the clearance groove (122) and the first side is 4~7mm.

7. The optical module according to claim 2, characterized in that, The width of the clearance groove (122) is 1.45~3.2mm.

8. The optical module according to any one of claims 1-7, characterized in that, The optical module also includes an upper cover (2), a lower cover (3) and an unlocking component. The upper cover (2) is connected to the lower cover (3). The unlocking component is disposed on the side of the lower cover (3) and / or the upper cover (2), and the unlocking component is movable relative to the lower cover (3) and / or the upper cover (2).

9. The optical module according to claim 8, characterized in that, The unlocking assembly includes an unlocking buckle (40) and a spring (41). The spring (41) is fixed to the side of the lower cover (3) and / or the upper cover (2). The unlocking buckle (40) is connected to the spring (41), and the spring (41) is used to drive the unlocking buckle (40) to reset.

10. The optical module according to claim 9, characterized in that, The lower cover (3) and / or the upper cover (2) are provided with spring grooves (30) on their sides, and the spring (41) is provided in the spring grooves (30). The unlocking fastener (40) is provided with a stop post (401), and the stop post (401) is connected to the spring (41).

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