An optical module

Abstract

The present application relates to a kind of optical modules, including optical device, top cover, base, pre-tightening component and elastic component, base is configured with assembly slot and optical port, assembly slot includes two opposite configuration side walls and the end wall connected with side wall, two side walls are respectively configured with first guide surface and the positioning surface of optical device adaptation;Pre-tightening component two sides are respectively first side and second side, the lower end of first side is configured with the second guide surface of adaptation first guide surface, the lower end of second side is configured with extrusion surface, the lower end of pre-tightening component is configured with bayonet;Optical device is inserted in optical port, pre-tightening component is inserted between first guide surface and extrusion surface, elastic component is set between top cover and pre-tightening component, top cover is connected to base by fastener, and by pre-tightening component, the annular flange of optical device is pressed on positioning surface, and there is gap between the lower end of pre-tightening component and the bottom of assembly slot;The present optical module can provide continuous transverse pre-tightening pressure for optical device, to ensure the installation accuracy of optical device.

Description

Technical Field

[0001] This invention relates to the field of optical communication technology, and more specifically to an optical module. Background Technology

[0002] Optical modules are crucial components in optical communication technology, enabling the conversion between photoelectric signals and signals. Functionally, an optical module includes an optical port, optical devices, a PCBA board, a base, and a top cover. The optical port is typically located in the base and is mainly used to connect fiber optic patch cords. The optical devices and PCBA board are usually mounted in the base, with each optical device corresponding to a different optical port. The top cover is typically mounted in the base and encloses the optical devices and PCBA board between the top cover and the base.

[0003] During assembly, fiber optic patch cords are inserted into the optical port to connect with the corresponding optical devices. Due to manufacturing and assembly errors in optical devices and structural components (such as bases and top covers), it is difficult to guarantee the installation accuracy of the optical devices, which will affect the accuracy of the optical module. At the same time, in actual use, fiber optic patch cords are plugged in and out. Since the fiber optic patch cords are connected to each other, the force during the plugging and unplugging process can cause the position of the optical devices to shift, making it difficult to guarantee the matching accuracy between the optical devices and the fiber optic patch cords. This will seriously affect the accuracy of the optical module and may even cause the optical module to malfunction. This issue urgently needs to be addressed. Summary of the Invention

[0004] The first aspect of this invention addresses the problem of improving the accuracy of optical modules by providing an optical module that can guarantee both the installation accuracy of optical devices and the mating accuracy between the optical devices and fiber optic patch cords. The main concept is as follows:

[0005] An optical module includes an optical device, a top cover, and a base. The optical device has an annular flange on its side, with the two sides of the annular flange being an inner side and an outer side, respectively.

[0006] It also includes pre-tensioning components and elastic components.

[0007] The base has an assembly slot for mounting optical devices. The sidewall of the assembly slot includes an end wall at one end, which has an optical port adapted to an optical fiber patch cord. Positioning surfaces adapted to the inner side of an annular flange are respectively constructed on both sides of the optical port, with the positioning surfaces facing away from the end wall. A first guide surface is constructed inside the assembly slot, facing the end wall.

[0008] The two sides of the pre-tightening component are a first side and a second side, respectively. At least the lower end of the first side is constructed with a second guide surface adapted to the first guide surface, and at least the lower end of the second side is constructed with a pressing surface adapted to the outer side of the annular flange. The lower end of the pre-tightening component is constructed with a slot that penetrates the first side and the second side.

[0009] The optical device is inserted into the optical port, the inner side of the annular flange abuts against the positioning surface, the pre-tightening component is inserted between the first guide surface and the outer side of the annular flange, the elastic component is disposed between the top cover and the pre-tightening component, the top cover is connected to the base by fasteners, and the annular flange of the optical device is pressed against the positioning surface by the pre-tightening component, and there is a gap between the lower end of the pre-tightening component and the bottom of the assembly groove. In this solution, an assembly groove is constructed in the base to provide space for the sealed installation of optical devices and pre-tightening components; a positioning surface is constructed in the base to limit and position the annular flange of the optical device, thus solving the problem of limiting and positioning the optical device; a first guide surface is constructed in the assembly groove, and a pre-tightening component is configured therein, with a second guide surface adapted to the first guide surface constructed on the first side of the pre-tightening component. This allows the first and second guide surfaces to not only form a sliding fit but also a guiding fit to drive the lateral movement of the pre-tightening component, solving the problem of using vertical pressure to drive the lateral movement of the pre-tightening component and compress the optical device; a compression surface adapted to the annular flange is constructed on the second side of the pre-tightening component, and this compression surface contacts the annular flange of the optical device, allowing the lateral force generated by the pre-tightening component to directly act on the annular flange of the optical device, thus pressing the annular flange of the optical device tightly against the base. Positioning surface; by configuring an elastic component between the top cover and the pre-tightening component, and creating a gap between the lower end of the pre-tightening component and the bottom of the mounting slot, the top cover, elastic component, pre-tightening component, and base work together to provide continuous lateral pre-tightening pressure for the optical device. This design ensures, on the one hand, that the optical device is stably pressed against the positioning surface, thus effectively guaranteeing the installation accuracy of the optical device; on the other hand, during actual use, changes in the position of the optical device need to overcome the lateral pre-tightening pressure of the pre-tightening component, making it difficult for the insertion and removal of fiber optic patch cords to cause positional displacement of the optical device. Moreover, even if the removal action causes positional displacement of the optical device, the optical device can automatically reset to its initial position under the lateral pre-tightening pressure of the pre-tightening component, achieving automatic correction of deviation. This effectively guarantees the fitting accuracy between the optical device and the fiber optic patch cord, thereby effectively ensuring the stability and accuracy of the optical module during use.

[0010] Preferably, both the positioning surface and the extrusion surface are vertical. This ensures that the positioning direction of the optical device is consistent with its length direction, which helps improve positioning accuracy.

[0011] Furthermore, the end wall is a vertical surface, and the positioning surface is parallel to the end wall. This simplifies the structure, reduces costs, and facilitates processing and forming.

[0012] To address the issue of ensuring the positional accuracy of optical devices, the first guide surface is further constructed as an inclined surface tilted in the vertical direction, and the second guide surface is also constructed as an inclined surface tilted in the vertical direction. The lower ends of the inclined surfaces are tilted towards the end wall, and the tilt angles of the inclined surfaces are the same. By constructing the first and second guide surfaces as inclined surfaces, with the lower ends of the inclined surfaces tilting towards the end wall, and since the tilt angles of the inclined surfaces are the same, the pre-tightening component can achieve a sliding fit through the cooperation of the inclined surfaces. This allows the cooperation between the inclined surfaces and the positioning surface to provide continuous lateral pre-tightening pressure to the optical device, effectively ensuring the positional accuracy of the optical device.

[0013] To address the issue of facilitating rapid assembly of pre-tightened components, a first boss is further constructed within the assembly groove, with a first guide surface formed on the side of the first boss facing the end wall. By configuring the first boss, the first guide surface can be formed on the side of the first boss, which not only facilitates the machining and forming of the first guide surface but also makes it easier to assemble the pre-tightened components, thus enabling rapid and efficient assembly of the pre-tightened components.

[0014] Preferably, the sidewall of the assembly groove further includes two sidewalls located on both sides of the end wall and constructed opposite to each other, with the first boss connected to each of the two sidewalls. By constructing the first boss on the sidewall of the assembly groove, not only is it easier to form the first boss, but the stability and service life of the first boss can also be improved.

[0015] Furthermore, the end walls on both sides of the optical port are each constructed with a second protrusion in the vertical direction, and the positioning surface is constructed on the side of the second protrusion facing away from the end wall. This provides installation space for the conductive elastomer and helps improve the airtightness of the structure.

[0016] A second aspect of this invention addresses the problem of preventing damage to optical devices during assembly. Specifically, the pre-tightening component includes a first vertically oriented limiting portion, and the assembly groove includes a second vertically oriented limiting portion. The first limiting portion is adapted to the second limiting portion, and the cooperation between the first and second limiting portions restricts the assembly direction of the pre-tightening component. By configuring the first and second limiting portions, the second limiting portion can indicate the assembly direction of the pre-tightening component during assembly; and the cooperation between the first and second limiting portions restricts the assembly direction of the pre-tightening component, ensuring that it can only be inserted into the assembly groove in a predetermined positive direction. Reverse installation will result in jamming and prevent insertion into the assembly groove, thereby effectively preventing damage to the optical device from reverse installation and effectively protecting the optical device during assembly.

[0017] Preferably, the second limiting part is a third boss constructed in the assembly groove. The third boss includes a limiting surface one facing the annular flange and a limiting surface two facing the first guide surface. A limiting angle is formed between the limiting surface one and the limiting surface two. The width of the limiting surface one is greater than the thickness of the annular flange.

[0018] The first limiting part is a limiting notch constructed on the pre-tightening component. During assembly, the limiting corner is located in the limiting notch, and the limiting surface does not contact the pre-tightening component. The limiting corner and the limiting notch can be used to indicate the assembly direction of the pre-tightening component, so as to quickly, efficiently and correctly assemble the pre-tightening component. However, if the pre-tightening component is installed backwards during assembly, the limiting corner will get stuck on the pre-tightening component, preventing the pre-tightening component from being installed, thereby effectively protecting the optical device.

[0019] Preferably, the second limiting surface corresponds to the first guide surface, to facilitate the rapid assembly and disassembly of the pre-tightening component.

[0020] To facilitate faster assembly of the pre-tightening components, the upper end of the first guide surface is further provided with an arc-shaped chamfer, and / or the upper end of the second limiting surface is also provided with an arc-shaped chamfer. This not only eliminates sharp edges but also guides and directs the assembly of the pre-tightening components.

[0021] To further optimize the fit between the pre-tightening component and the base, the upper end of the first side is further constructed with a step that runs through both ends of the pre-tightening component. The step configuration effectively reduces the thickness of the upper end of the pre-tightening component, which not only effectively controls the area of ​​the second guide surface to control the friction between the first guide surface and the second guide surface, but also reduces the overall area of ​​the upper end of the pre-tightening component. This effectively prevents interference between the pre-tightening component and other structures in the base or top cover, and significantly reduces the assembly thrust in the vertical direction. On the one hand, this helps improve the assembly speed and efficiency of the pre-tightening component; on the other hand, it allows for easier and less strenuous disassembly of the pre-tightening component.

[0022] To further optimize the fit between the pre-tightening component and the base, the upper end of the second side is further constructed with an inclined surface facing inwards towards the pre-tightening component. This ensures that the inclined surface does not contact the outer side of the annular flange, and the lower edge of the inclined surface corresponds to or is higher than the center of the optical device. By configuring the inclined surface and ensuring that its lower edge corresponds to or is higher than the center of the optical device, this design reduces the contact area between the pre-tightening component and the annular flange of the uppermost optical device, thus facilitating more convenient and efficient assembly and disassembly of the pre-tightening component. Furthermore, it ensures that the pre-tightening component accurately positions the optical device at a predetermined location, guaranteeing the positional accuracy of the optical device.

[0023] A third aspect of the present invention addresses the problem of further ensuring the reliability of optical devices during use. Furthermore, the angle between the inclined surface and the vertical direction is 5-15 degrees. During the insertion and removal of fiber optic patch cords, the horizontal external force generated by the insertion and removal acts on the pre-tightening component and directly on the first guide surface. Since the first guide surface is inclined, it generates both an upward vertical component and a horizontal component force on the pre-tightening component. Most of the external force generated by the insertion and removal of fiber optic patch cords, as well as the deformation of the pre-tightening component, is canceled out by the horizontal component force. The upward vertical component force acts on the pre-tightening component and is canceled out by the elastic component above. Therefore, if the inclination angle of the inclined surface is too large, the upward vertical component force will be too large, and the insertion and removal process of the fiber optic patch cord may easily cause the pre-tightening component to come off. If the inclination angle of the inclined surface is too small, the lateral pre-tightening pressure of the pre-tightening component on the optical device will be insufficient, and the installation accuracy of the optical device cannot be guaranteed. In this case, by controlling the inclination angle of the inclined surface to 5-15 degrees, it is possible to prevent the pre-tightening component from coming off during the insertion and removal process of the fiber optic patch cord and to ensure the installation accuracy of the optical device, thereby effectively ensuring the reliability and stability of the optical device during use.

[0024] Preferably, the angle between the inclined surface and the vertical direction is 9 degrees or 10 degrees.

[0025] Some designs include an optical port and an optical device, with the first guide surface constructed on both sides of the optical port. This allows the two first guide surfaces to form a limiting fit with the two positioning surfaces, which facilitates more stable support for the pre-tightened component.

[0026] Some solutions include a set of optical ports, each comprising at least two optical ports arranged vertically, with the first guide surface formed on both sides of the set of optical ports. The number of optical devices is the same as the number of optical ports, so that the two first guide surfaces and two positioning surfaces can form a limiting fit, which is beneficial for more stable support of the pre-tightening component.

[0027] Some solutions include a set of optical ports, each comprising at least two optical ports arranged horizontally, with the first guide surface constructed between adjacent optical ports and / or on both sides of the set of optical ports. This allows at least two first guide surfaces to form a limiting fit with at least two positioning surfaces, facilitating more stable support for the pre-tightened component.

[0028] To improve the integration of optical modules, some solutions include at least two sets of optical ports, with each set of ports spaced apart. Each set of ports includes at least two optical ports arranged vertically, and the number of bayonet points is the same as the number of optical port sets. The number of optical devices is the same as the number of optical ports.

[0029] Furthermore, a limiting platform is constructed between the second protrusions of two adjacent optical ports. The thickness of the limiting platform is less than the thickness of the annular flange, and limiting surfaces three that adapt to the annular flange are formed on both sides of the limiting platform. This allows the optical device to be limited and constrained between limiting surfaces one and three. Since the thickness of the limiting platform is less than the thickness of the annular flange, the pressing surface of the pre-tightening component can only contact the outer side of the annular flange and will not contact the limiting platform, thus not interfering with the pre-tightening component's pre-tightening function.

[0030] To ensure a more secure and stable clamping of the pre-tightening component below using the top cover, a vertically oriented connecting post is further constructed within the assembly groove. The connecting post has a threaded hole and is located between two adjacent sets of apertures. The side of the connecting post facing the end wall has the first guide surface.

[0031] The top cover has a through hole adapted to the connecting post, and the top cover is fixed to the base by fasteners with threaded holes. By configuring the connecting post, the connection strength at the mounting groove can be strengthened by the fasteners, allowing the top cover to more reliably and stably press the pre-tightening component below. Furthermore, by constructing a first guide surface on the connecting post, the contact area between the first guide surface and the second guide surface can be effectively increased, which can improve the stability of the pre-tightening component, increase the friction between the pre-tightening component and the base, and improve the impact resistance of the pre-tightening component.

[0032] Furthermore, a protruding beam is constructed at the bottom of the assembly groove, and an adapter port for fitting the protruding beam is constructed at the lower end of the pre-tightening component. By configuring the protruding beam, the structural strength and rigidity of the base can be effectively enhanced.

[0033] A fourth aspect of this invention addresses the problem of improving the lifespan of optical devices. Further, it includes a conductive elastomer with a ring-shaped structure. The conductive elastomer is fitted onto the optical device, with a localized area on the inner side of the ring flange contacting the positioning surface, thus constraining the conductive elastomer between the end wall and the inner side of the ring flange. By placing the conductive elastomer on the inner side of the ring flange and positioning the pre-tightening component on the outer side of the ring flange, the ring flange of the optical device is positioned precisely between the pre-tightening component and the conductive elastomer. Due to the elasticity of the conductive elastomer, it not only seals the gap between the end wall and the ring flange but also buffers vibrations during the assembly and use of the optical device, effectively protecting it and extending its lifespan. Furthermore, the conductive properties of the conductive elastomer effectively prevent signal leakage from the optical device, significantly improving the EMI protection level of the optical module.

[0034] Compared with the prior art, the optical module provided by the present invention can provide continuous lateral preload pressure for optical devices, which can not only overcome the tolerance of optical devices and structural components and ensure the installation accuracy of optical devices, but also ensure the matching accuracy of optical devices and fiber optic patch cords, thereby effectively ensuring the accuracy of the optical module during use. Attached Figure Description

[0035] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention 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.

[0036] Figure 1 This is a schematic diagram of the structure of an existing optical device.

[0037] Figure 2 This is a front view of an existing optical device.

[0038] Figure 3 This is a schematic diagram of a pre-tightening component provided in Embodiment 1 of the present invention.

[0039] Figure 4 for Figure 3 The right view.

[0040] Figure 5 for Figure 3 Top view.

[0041] Figure 6 This is a partial structural diagram of a base provided in Embodiment 1 of the present invention.

[0042] Figure 7 for Figure 6 Top view.

[0043] Figure 8 This is a cross-sectional view of an optical device provided in Embodiment 1 of the present invention at point AA, without the optical device and pre-tightening components installed.

[0044] Figure 9 This is a partial top view of an optical device after assembly, provided in Embodiment 1 of the present invention, with a partial cross-sectional view at the location of the corresponding optical device.

[0045] Figure 10 This is a partial side view of an optical device after assembly, provided in Embodiment 1 of the present invention, with a partial cross-section at the location of the corresponding optical device.

[0046] Figure 11 This is a schematic diagram of another pre-tightening component provided in Embodiment 2 of the present invention.

[0047] Figure 12 for Figure 11 Rear view.

[0048] Figure 13 This is a partial structural diagram of a base provided in Embodiment 2 of the present invention.

[0049] Figure 14 for Figure 13 Top view.

[0050] Figure 15 This is a partial top view of an optical device after assembly, provided in Embodiment 2 of the present invention, with a partial cross-sectional view at the location of the corresponding optical device.

[0051] Explanation of markings in the diagram

[0052] Optical device 1, main body 11, annular flange 12, inner side 13, outer side 14

[0053] Top cover 2, mounting groove 21, through hole 22

[0054] Base 3, Module Base 31, Module Opening 32, Assembly Slot 33, Side Wall 331, First Boss 34, First Guide Surface (Inclined Surface) 341, Chamfered Corner 342, End Wall 332, Opening 35, Second Boss 36, Positioning Surface 361, Limiting Platform 37, Limiting Surface Three 371, Third Boss 38, Limiting Surface One 381, Limiting Surface Two 382, ​​Protruding Beam 333, Connecting Column 39, Threaded Hole 391

[0055] Pre-tightening component 4, first side 41, second guide surface (inclined surface) 411, limiting notch 412, second side 42, pressing surface 421, bayonet 422, adapter port 423, step 424, inclined surface 425, gap 43

[0056] Elastic component 5

[0057] 6. Conductive elastomer. Implementation

[0058] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. 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. Example 1

[0059] This embodiment provides an optical module, including an optical device 1, a top cover 2, a base 3, a pre-tightening component 4, an elastic component 5, and several fasteners, wherein...

[0060] like Figure 1 and Figure 2 As shown, the optical device 1 can be an existing optical device 1, typically including a columnar body 11 and an annular flange 12. The front end of the body 11 has a conical structure, and the side of the body 11 has an annular flange 12. For ease of description, the two sides of the annular flange 12 are respectively the inner side 13 and the outer side 14, as shown. Figure 2 As shown.

[0061] like Figure 6 and Figure 7 As shown, the upper surface of the base 3 is constructed with an assembly groove 33 and an optical port 35 for accommodating fiber optic patch cords. The assembly groove 33 provides space for the sealed installation of the optical device 1 and the pre-tightening component 4. The sidewalls of the assembly groove 33 include two opposing sidewalls 331 and an end wall 332 located at one end. Figure 7 As shown, for ease of processing and positioning, the assembly groove 33 is a square groove, making the sidewall 331 and the endwall 332 perpendicular to each other. In this embodiment, the aperture 35 is constructed on the endwall 332 and communicates with the assembly groove 33, as shown. Figure 6 As shown, positioning surfaces 361 that adapt to the inner side 13 of the annular flange 12 are respectively constructed on both sides of the optical port 35, and the positioning surfaces 361 are opposite to the end wall 332. A first guide surface 341 is also constructed in the assembly groove 33, the first guide surface 341 facing the end wall 332, such that the orientation of the first guide surface 341 is opposite to that of the positioning surface 361, as shown. Figure 6 As shown, in this embodiment, the first guide surface 341 faces the end wall 332, and the positioning surface 361 faces away from the end wall 332, as... Figure 6 and Figure 7 As shown, the first guide surface 341 and the positioning surface 361 have a certain distance to form a limiting cavity for the insertion of the pre-tightening component 4. The positioning surface 361 is mainly used to limit and position the annular flange 12 of the optical device 1, thereby limiting and positioning the optical device 1.

[0062] For ease of description, in this embodiment, the two sides of the pre-tightening component 4 are respectively the first side 41 and the second side 42, as shown below. Figure 3 and Figure 4 As shown, at least the lower end of the first side 41 is constructed with a second guide surface 411 adapted to the first guide surface 341. In implementation, either the entire first side 41 of the pretensioning component 4 can be constructed as the second guide surface 411, or a partial area at the lower end of the first side 41 of the pretensioning component 4 can be constructed as the second guide surface 411, such as... Figure 3 and Figure 4 As shown; simultaneously, at least the lower end of the second side 42 is constructed with a pressing surface 421 adapted to the outer side 14 of the annular flange 12. In implementation, either the entire second side 42 of the pre-tightening member 4 can be constructed as the pressing surface 421, or a partial area at the lower end of the second side 42 of the pre-tightening member 4 can be constructed as the pressing surface 421, such as... Figure 4 As shown. Furthermore, the lower end of the pre-tightening component 4 is also constructed with a slot 422 that penetrates the first side 41 and the second side 42, as shown. Figure 3 As shown, the bayonet 422 is adapted to the optical device 1 so that the pre-tightening component 4 can be inserted into the mounting slot 33 from above.

[0063] During assembly, the optical device 1 is inserted laterally into the optical port 35, with the inner side 13 of the annular flange 12 of the optical device 1 abutting against the positioning surface 361, as shown. Figure 8 and Figure 9 As shown, the pre-tightening component 4 is inserted vertically between the first guide surface 341 and the outer side 14 of the annular flange 12, and the elastic component 5 is disposed between the top cover 2 and the pre-tightening component 4, as shown. Figure 9 and Figure 10As shown, the top cover 2 is detachably connected to the base 3 by fasteners (such as bolts or screws) and presses the pre-tightening component 4 vertically downward. At the same time, through the cooperation of the first guide surface 341 and the second guide surface 411, the pre-tightening component 4 can press the annular flange 12 of the optical device 1 onto the positioning surface 361. There is a gap 43 between the lower end of the pre-tightening component 4 and the bottom of the mounting groove 33, so as to provide continuous lateral pre-tightening pressure (i.e., along the direction perpendicular to the end wall 332) for the optical device 1. Specifically, in this embodiment, a first guide surface 341 is constructed in the mounting groove 33 of the base 3, and a pre-tightening component 4 is configured. A second guide surface 411 adapted to the first guide surface 341 is constructed on the first side 41 of the pre-tightening component 4. This allows the first guide surface 341 and the second guide surface 411 to not only form a sliding fit but also a guiding fit that drives the pre-tightening component 4 to move laterally. This allows the pre-tightening component 4 to move laterally and press the optical device 1 using vertical pressure. A pressing surface 421 adapted to the annular flange 12 is constructed on the second side 42 of the pre-tightening component 4, and the pressing surface 421 contacts the annular flange 12 of the optical device 1. This allows the lateral force generated by the pre-tightening component 4 to directly act on the annular flange 12 of the optical device 1, pressing the annular flange 12 of the optical device 1 against the positioning surface 361 of the base 3. An elastic component is configured between the top cover 2 and the pre-tightening component 4. 5. A gap 43 is formed between the lower end of the pre-tightening component 4 and the bottom of the mounting groove 33. This allows the top cover 2, the elastic component 5, the pre-tightening component 4, and the base 3 to provide continuous lateral pre-tightening pressure for the optical device 1. This design ensures that the optical device 1 can stably abut against the positioning surface 361, thus effectively guaranteeing the installation accuracy of the optical device 1. On the other hand, in actual use, changes in the position of the optical device 1 need to overcome the lateral pre-tightening pressure of the pre-tightening component 4, making it difficult for the insertion and removal of the fiber optic patch cord to cause the position of the optical device 1 to shift. Moreover, even if the removal action causes the position of the optical device 1 to shift, the optical device 1 can automatically reset to its initial position under the action of the lateral pre-tightening pressure of the pre-tightening component 4, achieving the purpose of automatic correction of deviation. This effectively guarantees the matching accuracy between the optical device 1 and the fiber optic patch cord, and thus effectively guarantees the accuracy of the optical module during use.

[0064] In implementation, the positioning surface 361 can be a plane with a certain tilt angle, but in the preferred embodiment provided in this example, the positioning surface 361 is a vertical surface, such as... Figure 6 and Figure 7 As shown, the extrusion surface 421 can also preferably be a vertical surface, thereby ensuring that the positioning direction of the optical device 1 is consistent with the length direction of the optical device 1, which is beneficial to improving positioning accuracy. In implementation, the end wall 332 can preferably be constructed as a vertical surface, and the positioning surface 361 is parallel to the end wall 332, such as... Figure 7As shown, this design simplifies the structure, reduces costs, and makes the material easier to process and shape.

[0065] In implementation, the first guide surface 341 can be an arc surface, and the second guide surface 411 can be a matching arc surface. In a preferred embodiment, the first guide surface 341 can be constructed as an inclined surface tilted in the vertical direction, such as... Figure 6 , Figure 7 , Figure 8 and Figure 10 As shown, the second guide surface 411 is also constructed as an inclined surface that is inclined in the vertical direction. The lower end of the inclined surface is inclined toward the end wall 332, and the inclination angle of the inclined surfaces is the same, so that the pre-tightening component 4 can achieve sliding engagement through the cooperation of the inclined surfaces. The cooperation between the inclined surface and the positioning surface 361 can provide continuous lateral pre-tightening pressure for the optical device 1. The lateral pre-tightening pressure can effectively ensure the positional accuracy of the optical device 1.

[0066] To facilitate the machining and forming of the first guide surface 341, a first boss 34 is also constructed within the assembly groove 33. The first guide surface 341 is constructed on the side of the first boss 34 facing the end wall 332. In one embodiment, the first boss 34 can be constructed within the assembly groove 33 and is separate from the side wall of the assembly groove 33, belonging to an independent component. In a preferred embodiment, the two side walls 331 of the assembly groove 33 are respectively connected to the inwardly protruding first boss 34 along the vertical direction. Figure 6 and Figure 7 As shown, the first guide surface 341 is constructed on the side of the first boss 34 facing the end wall 332. By configuring the first boss 34, not only is it easier to process and form the first guide surface 341, but it is also easier to assemble the pre-tightening component 4, which is beneficial to achieving rapid and efficient assembly of the pre-tightening component 4. In a more complete solution, the upper end of the first guide surface 341 is also constructed with an arc-shaped chamfer 342, such as... Figure 6 and Figure 7 As shown, the arc-shaped chamfer 342 can be connected to the first guide surface 341, which can not only eliminate sharp edges, but also guide and direct the assembly of the pre-tightening component 4.

[0067] In this embodiment, the number of optical ports 35 can be one, two, or more, while the number of optical devices 1 is generally the same as the number of optical ports 35. That is, an optical device 1 is installed at each optical port 35. Simultaneously, the number of bayonets 422 configured in the pre-tightening component 4 is related to the number of optical ports 35 and their arrangement. Of course, in practice, the number of optical devices 1 can also be the same as the number of optical ports 35. That is, in some applications, some optical ports 35 may not have optical devices 1 installed. In some embodiments, the optical module may include only one optical port 35 and one optical device 1. The first guide surfaces 341 are respectively constructed on both sides of the optical port 35 so that the two first guide surfaces 341 and the two positioning surfaces 361 form a limiting fit, which is beneficial for more stable support of the pre-tightening component 4. In this case, the pre-tightening component 4 is constructed with one bayonet 422. In other embodiments, the optical module may include a set of optical ports, which may include at least two optical ports 35 arranged vertically. The first guide surfaces 341 are respectively constructed on both sides of the set of optical ports to form a limiting fit between the two first guide surfaces 341 and the two positioning surfaces 361. In this case, the pre-tightening component 4 is constructed with a latch 422. Alternatively, the set of optical ports may include at least two optical ports 35 arranged horizontally. The first guide surfaces 341 may be constructed between two adjacent optical ports 35 and / or on both sides of the set of optical ports (such as the first boss 34 connected to the side wall 331 of the mounting groove 33). The number of optical devices 1 is the same as the number of optical ports 35, and the number of latches 422 in the pre-tightening component 4 is also the same as the number of optical ports 35, so that at least two first guide surfaces 341 and at least two positioning surfaces 361 form a limiting fit, which is beneficial for more stable support of the pre-tightening component 4; for example, such as... Figure 6 and Figure 7 As shown, the optical module includes a set of optical ports, which includes two optical ports 35 arranged vertically. Each optical port 35 is equipped with an optical device 1, and the corresponding pre-tightening component 4 includes a bayonet 422. To facilitate the processing and forming of the positioning surface 361, in implementation, the end walls 332 on both sides of the optical port 35 are respectively constructed with second protrusions 36 in the vertical direction. The positioning surface 361 can be constructed on the side of the second protrusion 36 facing away from the end wall 332, so as to provide installation space for the conductive elastomer 6, which is beneficial to improving the airtightness of the structure. Figure 6 and Figure 7 As shown, in practice, the width of each second protrusion 36 can be different or the same, which will not be elaborated here.

[0068] In a more complete solution, this optical module also includes a conductive elastomer 6, which is constructed in a ring shape, such as... Figure 1 , Figure 9 and Figure 10As shown, during assembly, the conductive elastomer 6 is sleeved on the optical device 1. When the optical device 1 is positioned at the optical port 35, a local area of ​​the inner side 13 of the annular flange 12 contacts the positioning surface 361, as shown. Figure 10 As shown, the conductive elastomer 6 is constrained between the end wall 332 and the inner side 13 of the annular flange 12. In this embodiment, by providing the conductive elastomer 6 on the inner side 13 of the annular flange 12 and the pre-tightening member 4 located on the outer side 14 of the annular flange 12, the annular flange 12 of the optical device 1 is located exactly between the pre-tightening member 4 and the conductive elastomer 6. Since the conductive elastomer 6 is elastic, it can not only seal the gap 43 between the end wall 332 and the annular flange 12, but also buffer the vibration of the optical device 1 during assembly and use, effectively protecting the optical device 1 and improving its service life. In addition, during actual operation, the conductive properties of the conductive elastomer 6 can effectively prevent signal leakage from the optical device 1, significantly improving the EMI protection level of the optical module.

[0069] In implementation, the base 3 can be an existing integrated base or a split base. The split base includes a modular base 31 and a modular optical port 32, wherein the modular optical port 32 is connected to one side of the modular base 31, such as... Figure 6 As shown, the mounting slot 33 and the optical port 35 are both constructed on the optical port 32 of the module. Meanwhile, in this embodiment, the bottom cover can be an existing top cover 2. The base 3 has several threaded holes 391, and the top cover 2 has several through holes 22 that fit the threaded holes 391, so that the top cover 2 can be detachably installed on the base 3 using fasteners such as bolts or screws. Figure 6 As shown.

[0070] To better constrain the elastic component 5, in a more refined solution, the top cover 2 is constructed with a groove adapted to the top of the pre-tightening component 4, and the bottom of the groove is constructed with a mounting groove 21 adapted to the elastic component 5. For example, Figure 8 and Figure 10 As shown, the mounting groove 21 can be a strip-shaped structure to accommodate the strip-shaped elastic component 5. The top cover 2 can be constructed with one, two, or more mounting grooves 21 to assemble one, two, or more elastic components 5. Of course, in implementation, the elastic component 5 can also take other shapes, such as a block structure. In implementation, the elastic component 5 can be made of materials such as rubber or silicone, or it can be made of a curing adhesive. Example 2

[0071] To achieve simultaneous assembly of multiple optical devices 1, the main difference between this embodiment and the previous embodiment is that the optical module provided in this embodiment includes at least two sets of optical ports, each set of optical ports is arranged at intervals, and each set of optical ports includes at least two optical ports 35 arranged in the vertical direction. Correspondingly, the number of bayonet slots 422 is the same as the number of sets of optical ports, and the number of optical devices 1 can be the same as the number of optical ports 35, or in some applications, the number of optical devices 1 can be less than the number of optical ports 35. As an example, such as Figure 13 As shown, in this embodiment, the base 3 is constructed with two sets of optical ports, each set including two optical ports 35 arranged in the vertical direction, as shown below. Figure 13 As shown, the four optical ports 35 form a rectangle so that four optical devices 1 can be installed at the same time.

[0072] In the optical module provided in Embodiment 1, since second protrusions 36 are respectively provided on both sides of the optical port 35, in order to more stably pre-tighten each optical device 1, in a more complete solution, the second protrusions 36 between two adjacent optical devices 1 are also constructed with limiting platforms 37. The thickness of the limiting platform 37 is less than the thickness of the annular flange 12, so that the pressing surface 421 of the pre-tightening component 4 can only contact the outer side 14 of the annular flange 12 and will not contact the limiting platform 37. Figures 13-15 As shown, this will not interfere with the pre-tightening component 4 in performing its pre-tightening function; and the two sides of the limiting platform 37 respectively form limiting surfaces 371 that adapt to the annular flange 12, as shown. Figure 15 As shown.

[0073] In a further embodiment, the assembly groove 33 is further provided with a vertically aligned connecting post 39, such as... Figure 13 As shown, the connecting post 39 has a threaded hole 391, and the top cover 2 has a through hole 22 adapted to the connecting post 39. This allows the top cover 2 to be fixed to the base 3 using fasteners that fit the threaded hole 391. The fasteners also strengthen the connection at the mounting groove 33, enabling the top cover 2 to more reliably and stably press against the pre-tightening component 4 below. In implementation, the connecting post 39 corresponds to the limiting platform 37, and the side of the connecting post 39 facing the limiting platform 37 has the first guide surface 341. Figures 13-15 As shown, this can effectively increase the contact area between the first guide surface 341 and the second guide surface 411, which can improve the stability of the pre-tightening component 4, increase the friction between the pre-tightening component 4 and the base 3, and improve the impact resistance of the pre-tightening component 4.

[0074] In a more refined design, a protruding beam 333 is constructed at the bottom of the assembly slot 33. One end of the protruding beam 333 can be connected to the limiting platform 37, and the connecting column 39 can be constructed on the protruding beam 333. Correspondingly, the lower end of the pre-tightening component 4 is constructed with an adapter port 423 that adapts to the protruding beam 333. Figure 11 and Figure 12As shown, by configuring the protruding beam 333, the structural strength and rigidity of the base 3 can be effectively enhanced, and the stability can be improved. Example 3

[0075] In this optical module, the tilt angle of the inclined surfaces (first guide surface and / or second guide surface) can be determined according to actual needs. However, during the insertion and removal of fiber optic patch cords, the horizontal external force generated by the insertion and removal of fiber optic patch cords acts on the pre-tightening component 4 and directly on the first guide surface 341. Since the first guide surface 341 is an inclined surface, it will generate a vertically upward component force and a horizontal component force on the pre-tightening component 4. Most of the external force generated by the insertion and removal of fiber optic patch cords and the deformation of the pre-tightening component 4 will be canceled out by the horizontal component force. The vertically upward component force acts on the pre-tightening component 4 and is neutralized by the elastic component 5 above. The pre-tightening force is offset by the pre-tightening elasticity. Therefore, if the tilt angle of the inclined surface is too large, the upward component force in the vertical direction will be too large, and the insertion and removal process of the fiber optic patch cord will easily cause the pre-tightening component 4 to come off. If the tilt angle of the inclined surface is too small, the lateral pre-tightening pressure of the pre-tightening component 4 on the optical device 1 will be insufficient, and the installation accuracy of the optical device 1 cannot be guaranteed. Therefore, in order to solve the problem of further ensuring the reliability of the optical device 1 during use, we can start from two directions: configuring the tilt angle of the inclined surface and the friction between the pre-tightening component 4 and the base 3. In the first direction, the tilt angle of the inclined surface can be set more reasonably to achieve a better lateral pre-tightening effect. Based on preliminary testing and verification, the angle α between the inclined surface and the vertical direction can be preferentially set to 5-15 degrees. That is, the inclination angle α of the inclined surface is preferably set to 5-15 degrees. With this design, on the one hand, the upward component force along the vertical direction can be effectively controlled and is relatively small, thereby effectively preventing the pre-tightening component 4 from coming loose during the insertion and removal of the fiber optic patch cord; on the other hand, the horizontal component force of the first guide surface 341 acting on the pre-tightening component 4 can also be effectively controlled and is relatively large, thereby more effectively offsetting most of the external forces brought about by the insertion and removal of the fiber optic patch cord and the deformation of the pre-tightening component 4, preventing the position of the optical device 1 from shifting, thereby effectively ensuring the installation accuracy of the optical device 1, and thus effectively ensuring the reliability of the optical device 1 during use.

[0076] In a preferred embodiment, the angle α between the inclined surface and the vertical direction can preferably be 9 degrees or 10 degrees, such as... Figure 4 and Figure 8 As shown, in this embodiment, the angle α between the inclined surface and the vertical direction is 10 degrees, which can achieve a better lateral pre-tightening effect and better ensure the installation accuracy of the optical device 1.

[0077] Secondly, to achieve better lateral pre-tightening, it is necessary to reasonably control the friction between the first guide surface 341 and the second guide surface 411, and / or the friction between the pressing surface 421 and the positioning surface 361. To control the friction between the first guide surface 341 and the second guide surface 411, and / or the friction between the pressing surface 421 and the positioning surface 361, the friction cannot be too large. Excessive friction will make installation and disassembly of the pre-tightening component 4 difficult, hindering efficient installation and disassembly. Conversely, the friction cannot be too small. Insufficient friction will make it difficult to offset most of the external forces caused by the insertion and removal of the fiber optic patch cord, as well as the deformation of the pre-tightening component 4, making it very easy for the pre-tightening component 4 to detach. Therefore, a more reasonable control of the friction is required. In one embodiment, the friction can be effectively controlled by reasonably setting the contact area between the first guide surface 341 and the second guide surface 411, and by reasonably controlling the contact area between the pressing surface 421 and the positioning surface 361. For example, several grooves or holes can be formed on the first guide surface 341 and / or the second guide surface 411 to reduce the contact area between the first guide surface 341 and the second guide surface 411. Similarly, several grooves or holes can be formed on the extrusion surface 421 and / or the positioning surface 361 to reduce the contact area between the extrusion surface 421 and the positioning surface 361. At the same time, a friction layer for increasing friction can be coated on the first guide surface 341 and / or the second guide surface 411 to increase the friction between the first guide surface 341 and the second guide surface 411. Similarly, a friction layer for increasing friction can be coated on the extrusion surface 421 and / or the positioning surface 361 to increase the friction between the extrusion surface 421 and the positioning surface 361.

[0078] For example, in a further embodiment, the upper end of the first side 41 is provided with a step 424 that extends through both ends of the pre-tightening member 4, such as... Figure 3 and Figure 11 As shown, the configuration of step 424 can effectively reduce the thickness of the upper end of the pre-tightening component 4, which can effectively control the area of ​​the second guide surface 411 so as to effectively control the friction between the first guide surface 341 and the first guide surface 341. It can also reduce the area of ​​the entire upper end of the pre-tightening component 4, which can effectively prevent the pre-tightening component 4 from interfering with other structures in the base 3 or top cover 2. Moreover, it can significantly reduce the assembly thrust in the vertical direction. On the one hand, it is beneficial to improve the assembly speed and assembly efficiency of the pre-tightening component 4. On the other hand, it can make the disassembly of the pre-tightening component 4 more convenient and labor-saving.

[0079] Furthermore, the upper end of the second side 42 is also constructed with an inclined surface 425 facing inwards towards the pre-tightening component 4, so that after assembly, the inclined surface 425 does not contact the outer side 14 of the annular flange 12, such as... Figure 4 and Figure 10As shown, the lower edge of the inclined surface 425 corresponds to or is higher than the center of the optical device 1. This design can, on the one hand, reduce the contact area between the pre-tightening component 4 and the annular flange 12 of the uppermost optical device 1, thereby making it easier and more efficient to assemble and disassemble the pre-tightening component 4. On the other hand, it can ensure that the pre-tightening component 4 accurately positions the optical device 1 at the predetermined position, thus ensuring the positional accuracy of the optical device 1.

[0080] In the design and manufacturing process of this optical module, the lateral pre-tightening effect of the pre-tightening component 4 is significantly improved by controlling the tilt angle of the tilted surface and by controlling the frictional force between the pre-tightening component 4 and the base 3. This can better ensure the positional accuracy of the optical device 1 and improve the accuracy of the optical module. Example 4

[0081] Since the assembly of the pre-tightening component 4 is directional, it is easy to cause damage to the optical device 1 due to incorrect assembly direction during actual assembly. To solve this technical problem, the difference between this embodiment and the above embodiment is that the pre-tightening component 4 is also constructed with a first limiting part in the vertical direction. At the same time, a second limiting part in the vertical direction is also constructed in the assembly groove 33, and the first limiting part is adapted to the second limiting part. Thus, the assembly direction of the pre-tightening component 4 can be restricted by the cooperation of the first limiting part and the second limiting part during the assembly process. Specifically, when assembling the pre-tightening component 4, since the base 3 has a second limiting part, the assembly direction of the pre-tightening component 4 can be indicated by the second limiting part, which can prevent the pre-tightening component 4 from being installed backwards. During the process of inserting the pre-tightening component 4 into the base 3 in the vertical direction, the assembly direction of the pre-tightening component 4 can be restricted by the cooperation of the first limiting part and the second limiting part, so that the pre-tightening component 4 can only be installed into the assembly slot 33 in the predetermined positive installation direction. If installed backwards, it will be stuck and cannot be installed into the assembly slot 33, thereby effectively preventing damage to the optical device 1 by reverse installation, and thus effectively protecting the optical device 1 during the assembly process.

[0082] In implementation, the first and second limiting parts can have various cooperative embodiments. For example, the first limiting part can be a limiting hole constructed in the pre-tightening component 4 or a limiting groove provided on the side of the pre-tightening component 4, and the second limiting part can be a limiting post adapted to the limiting hole or a limiting boss adapted to the limiting groove. A gap 43 exists between the limiting hole and the limiting post, and a gap 43 also exists between the limiting groove and the limiting boss, so as not to affect the transverse pre-tightening of the optical device 1 by the pre-tightening component 4. For example, in this embodiment, the second limiting part can be a third boss 38 constructed in the assembly groove 33, such as... Figure 9 , Figure 13 or Figure 15As shown, the third boss 38 may or may not be connected to the second boss 36. The third boss 38 includes a first limiting surface 381 facing the annular flange 12 and a second limiting surface 382 facing the first guide surface 341. A limiting angle can be formed between the first limiting surface 381 and the second limiting surface 382, ​​such as... Figure 9 , Figure 13 or Figure 15 As shown, the width of the limiting surface 381 is greater than the thickness of the annular flange 12 so as not to interfere with the transverse pre-tensioning of the optical device 1 by the pre-tensioning component 4, so that the optical device 1 can be limited and constrained between the limiting surface 381 and the limiting surface 371. Accordingly, the first limiting part can be a limiting notch 412 constructed on the pre-tensioning component 4, such as Figure 7 , Figure 14 or Figure 15 As shown, the limiting notch 412 is preferably constructed at one or both ends of the pre-tightening component 4. During assembly, the limiting corner is located in the limiting notch 412, and the limiting surface 382 does not contact the pre-tightening component 4, so as not to affect the lateral pre-tightening of the optical device 1 by the pre-tightening component 4. In actual use, the limiting corner and the limiting notch 412 can be used to indicate the assembly direction of the pre-tightening component 4, so as to quickly, efficiently and correctly assemble the pre-tightening component 4; and during assembly, if the pre-tightening component 4 is installed backwards, the limiting corner will be stuck in the pre-tightening component 4, so that the pre-tightening component 4 cannot be installed, thereby effectively protecting the optical device 1.

[0083] In implementation, the third boss 38 can be connected to the side wall 331 of the assembly slot 33, such as... Figure 13 or Figure 14 As shown, the side wall 331 of the assembly slot 33 may not be connected. In implementation, the second limiting surface 382 can be directly opposite the first guide surface 341, as shown. Figure 7 or Figure 14 As shown, the upper end of the limiting surface 382 is constructed with an arc-shaped chamfer 342, which can not only eliminate sharp edges, but also guide and direct the assembly of the pre-tightening component 4, which is conducive to faster assembly of the pre-tightening component 4.

[0084] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. An optical module comprising an optical device, a top cover, and a base, a side surface of the optical device being configured with a ring-shaped flange, both sides of the ring-shaped flange being an inner side and an outer side, respectively, characterized in that, The pre-tightening component and the elastic component are further included, The base is configured with an assembly slot for mounting the optical device, a side wall surface of the assembly slot includes an end wall at one end, the end wall is configured with an optical port for adapting an optical fiber jumper, two sides of the optical port are respectively configured with a positioning surface for adapting an inner side of the annular flange, the positioning surface is away from the end wall, a first guide surface is configured in the assembly slot, the first guide surface is towards the end wall, and the first guide surface is an arc surface or an inclined surface inclined along a vertical direction; Two sides of the pre-tightening component are respectively a first side and a second side, at least a lower end of the first side is configured with a second guide surface for adapting the first guide surface, and at least a lower end of the second side is configured with a pressing surface for adapting an outer side of the annular flange, the lower end of the pre-tightening component is configured with a bayonet hole penetrating through the first side and the second side; The optical device is inserted into the optical port, the inner side of the annular flange abuts against the positioning surface, the pre-tightening component is inserted between the first guide surface and the outer side of the annular flange, the elastic component is arranged between the top cover and the pre-tightening component, the top cover is connected to the base by a fastener and vertically presses the pre-tightening component downwards, the first guide surface and the second guide surface are in contact and form a sliding fit, and there is a gap between the lower end of the pre-tightening component and the bottom of the assembly slot; the pre-tightening component is driven to move laterally by vertical pressure to make the pressing surface contact the annular flange of the optical device, and the optical device is provided with continuous lateral pre-tightening pressure, so that the annular flange of the optical device is pressed against the positioning surface of the base.

2. The optical module according to claim 1, characterized by The first guide surface is configured as an inclined surface inclined along a vertical direction, the second guide surface is configured as an inclined surface inclined along a vertical direction, the lower end of the inclined surface is inclined towards the end wall, and the inclined angles of the inclined surfaces are the same; And / or, the positioning surface is a vertical surface, and the pressing surface is a vertical surface.

3. The optical module according to claim 1, characterized by A first boss is configured in the assembly slot, and the first guide surface is configured on a side of the first boss towards the end wall.

4. The optical module according to claim 3, characterized by The side wall surface of the assembly slot further includes two side walls located on both sides of the end wall and configured oppositely, and the two side walls are respectively connected with the first boss.

5. The optical module according to claim 1, characterized by The end walls on both sides of the optical port are respectively configured with a second boss along a vertical direction, and the positioning surface is configured on a side of the second boss away from the end wall; And / or, a conductive elastic body is further included, the conductive elastic body is configured as an annular structure, the conductive elastic body is sleeved on the optical device, a partial region of the inner side of the annular flange is in contact with the positioning surface, and the optical device restricts the conductive elastic body between the end wall and the inner side of the annular flange.

6. The optical module of claim 1, wherein, The upper end of the first side is configured with a step penetrating through both ends of the pre-tightening component; And / or, the upper end of the second side is configured with an inclined surface towards the inside of the pre-tightening component, the inclined surface does not contact the outer side of the annular flange, and the lower edge of the inclined surface corresponds to the center of the optical device or is higher than the center of the optical device; And / or, the bottom of the assembly slot is further configured with a convex beam, and the lower end of the pre-tightening component is configured with an adapting hole for adapting the convex beam.

7. The optical module according to any one of claims 1 to 6, wherein The optical port includes one optical device, and two sides of the optical port are respectively configured with the first guide surface; Or, the optical port includes a group of optical ports, the group of optical ports respectively includes at least two optical ports arranged along a vertical direction, and two sides of the group of optical ports are respectively configured with the first guide surface; Or, the optical port includes a group of optical ports, the group of optical ports respectively includes at least two optical ports arranged along a horizontal direction, and the first guide surface is configured between adjacent two optical ports and / or configured on both sides of the group of optical ports.

8. The optical module according to any one of claims 1 to 6, wherein The card includes at least two groups of optical ports, each group of optical ports is arranged at intervals, and each group of optical ports includes at least two optical ports arranged in a vertical direction, and the number of the card ports is the same as the number of the groups of optical ports.

9. The optical module according to claim 8, characterized by The second boss structure between the two adjacent groups of optical ports is a limiting table, the thickness of the limiting table is less than the thickness of the annular flange, and the two sides of the limiting table form a limiting surface three matched with the annular flange.

10. The optical module of claim 8, wherein, The assembly slot is also configured with a connecting column in the vertical direction, the connecting column is configured with a threaded hole, the connecting column is located between the two adjacent groups of optical ports, and the side of the connecting column facing the end wall is configured with the first guide surface, The top cover is configured with a through hole matched with the connecting column, and the top cover is fixed to the base by a fastener matched with the threaded hole.

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