Optical module socket adapter structure and socket and optical module thereof

Abstract

The application discloses a light module socket adapting structure, which comprises a socket and a light module. The socket and the light module are relatively plugged, the socket comprises an electric interface part, a light interface part and a locking frame, the light interface part and the electric interface part are arranged in the locking frame in a superposed mode, the light module comprises a fixed frame, the fixed frame is provided with a light interface matched with the light interface part and an electric interface matched with the electric interface part, and the outer sidewall of the fixed frame of the light module is matched with the inner cavity of the locking frame during plugging of the light module and the socket, so that the plugging of the socket and the light module is guided. The socket and the light module are matched in the structure, and the connection and stability of the light interface can be more accurately ensured.

Description

Technical Field

[0001] This invention belongs to the field of optical connector socket technology, specifically relating to an optical module socket adapter structure and its socket, and an optical module. Background Technology

[0002] In existing technologies, pluggable optical modules and sockets employ the following connection structure: the optical interface and electrical interface are simultaneously plugged in and out, and the optical interface cannot float relative to the electrical interface. In these pluggable optical modules and sockets, the optical module lacks a guiding structure, or the guiding structure is insufficient to maintain parallelism between the optical module's optical interface and the socket's optical interface. (Refer to...) Figure 22 The relative positions L of the optical and electrical ports cannot be perfectly aligned in practical applications. The electrical port is relatively rigid; after the electrical pin is inserted into the electrical port hole, the optical port hole and pin will have a positional deviation relative to the electrical port, leading to misalignment and force-induced misalignment. Optical modules using this connection structure have the following disadvantages: ① When the optical and electrical interfaces of the pluggable optical module and socket are simultaneously plugged in and out, the optical interface does not float relative to the electrical interface, posing a risk of force-induced misalignment and potentially resulting in performance defects. ② In pluggable optical modules and sockets, the optical module lacks a guiding structure, or the guiding structure is insufficient to maintain parallelism between the optical module's optical interface and the socket's optical interface. Under vibration, the plug and socket's optical interfaces may sway, further leading to performance defects. Summary of the Invention

[0003] The purpose of this invention is to solve the problems existing in the prior art and provide an optical module socket adapter structure and its socket and optical module. This device adds a guiding structure, and the optical interface can float relative to the electrical interface during the insertion process. The socket and optical module docking structure of this solution can more accurately ensure the connection and stability of the optical interface.

[0004] To achieve the above objectives, one objective of this invention is to provide an optical module socket adapter structure, including a socket and an optical module; the socket and the optical module are plugged into each other for electrical and optical signal transmission; the socket includes an electrical interface component, an optical interface component, and a locking frame; the optical interface component and the electrical interface component are stacked and disposed within the locking frame; the optical module includes a fixing frame, within which are disposed an optical interface adapted to the optical interface component and an electrical interface adapted to the electrical interface component; during the insertion process of the optical module and the socket, the outer wall of the fixing frame of the optical module forms a fit with the inner cavity of the locking frame to achieve guided insertion of the socket and the optical module.

[0005] As a preferred embodiment, the optical interface component is installed inside a floating frame, which is floatingly disposed within the socket cavity.

[0006] As a preferred embodiment, the mating surface of the fixing frame or the optical interface component is provided with a guide post, and the mating surface of the optical interface component or the fixing frame is correspondingly provided with a guide hole adapted to the guide post.

[0007] As a preferred embodiment, the socket is provided with a plug-in interface that mates with the outer edge of the optical interface of the fixed frame; the plug-in interface includes a guide cavity with a rectangular cross-section and an inner chamfer located at the port of the guide cavity, and the plug-in interface is used to guide the optical interface of the optical module to be connected.

[0008] As a preferred embodiment, a guide pin is installed on the optical interface of the optical module or the optical interface component of the socket.

[0009] As a preferred embodiment, in the optical module, both the optical interface and the electrical interface are fixed on the fixed frame to form an integral unit, wherein the optical interface is located above the electrical interface.

[0010] As a preferred embodiment, the length of the guide post along the insertion direction is not less than 3mm; the insertion direction is the direction in which the optical module and the socket are inserted.

[0011] As a preferred embodiment, the optical interface component includes a pin socket and a fixing seat, with a spring provided between the pin socket and the fixing seat so that the pin socket can move relative to the fixing seat in the socket insertion direction.

[0012] As a preferred embodiment, the socket cavity and the floating frame are provided with a limiting mechanism, the limiting mechanism including a front stop structure and a rear stop structure;

[0013] The front stop structure includes a locking spring arm and a locking hole. One end of the locking spring arm is fixedly connected to the side wall of the socket cavity, and the other end forms a locking contact. The floating frame has a locking hole. After the floating frame is inserted into the socket cavity, the locking contact falls into the locking hole and is used to prevent the floating frame from coming out of the socket cavity in the pull-out direction.

[0014] The rear stop structure includes a first stop platform and a second stop platform. The first stop platform is located on the inner wall of the socket cavity, and the second stop platform is located on the outer wall of the floating frame, which is used to block and limit the floating frame along the insertion direction.

[0015] As a preferred embodiment, the socket cavity is integrally formed with the housing of the electrical interface component.

[0016] As a preferred embodiment, the socket cavity is formed by a locking frame and the top of the electrical interface component. The locking frame is provided with a positioning platform to prevent the floating frame from dislodging from the locking frame when it floats in the insertion / removal direction.

[0017] The second objective of this invention is to provide an optical module, which is the optical module in any of the above-mentioned optical module socket adapter structures.

[0018] As a preferred embodiment, the optical module includes a fixed frame, an optical interface, and an electrical interface. The optical interface and the electrical interface are both mounted on the fixed frame to form a single unit. The optical interface and the electrical interface are stacked together. The optical interface is used for insertion and connection with the optical interface of a matching socket, and the electrical interface is used for insertion and connection with the electrical interface of a matching socket.

[0019] As a preferred embodiment, the insertion mating surface of the fixing frame is provided with a guide post or guide hole; the guide post or guide hole is arranged along the insertion direction of the optical interface.

[0020] As a preferred embodiment, the length of the guide post along the insertion direction is not less than 3mm; the insertion direction is the direction in which the optical module and the socket are inserted.

[0021] A third objective of this invention is to provide a socket, which is a socket in any of the aforementioned optical module socket adapter structures.

[0022] As a preferred embodiment, the socket includes an electrical interface component, an optical interface component, and a locking frame; the optical interface component and the electrical interface component are stacked and disposed within the locking frame, and the inner cavity of the locking frame includes a receiving section and a guiding section that are connected to each other. The receiving section is used to install the optical interface component and the electrical interface component, and the inner wall of the guiding section is adapted to the outer wall of the optical module to guide the optical module to dock with the socket and lock it in place.

[0023] As a preferred embodiment, the optical interface component is installed inside a floating frame, which is floatingly disposed within the socket cavity.

[0024] As a preferred embodiment, the optical interface component has guide posts or guide holes on its mating surface.

[0025] As a preferred embodiment, the optical interface component includes a pin socket and a fixing seat, with a spring provided between the pin socket and the fixing seat so that the pin socket can move relative to the fixing seat in the socket insertion direction.

[0026] As a preferred embodiment, the floating frame has an insertion interface at one end, which includes a guide cavity with a rectangular cross-section and an inner chamfer at one end of the guide cavity.

[0027] As a preferred embodiment, a limiting mechanism is provided on the mating surface of the side wall of the socket cavity and the floating frame, the limiting mechanism including a front stop structure and a rear stop structure;

[0028] The front stop structure includes a locking spring arm and a locking hole. One end of the locking spring arm is fixedly connected to the side wall of the socket cavity, and the other end forms a locking contact. The floating frame has a locking hole. After the floating frame is inserted into the socket cavity, the locking contact falls into the locking hole and is used to prevent the floating frame from coming out of the socket cavity in the pull-out direction.

[0029] The rear stop structure includes a first stop platform and a second stop platform. The first stop platform is located on the inner wall of the socket cavity, and the second stop platform is located on the outer wall of the floating frame, which is used to block and limit the floating frame along the insertion direction.

[0030] As a preferred embodiment, the socket cavity is integrally formed or assembled with the housing of the electrical interface component;

[0031] Alternatively; the socket cavity is formed by the receiving section and the top of the electrical interface component.

[0032] As a preferred embodiment, the socket cavity is formed by a locking frame and the top of the electrical interface component; the top of the receiving section is provided with a positioning platform for limiting the floating frame, the floating frame being located between two positioning platforms to prevent the floating frame from moving relative to the electrical interface component in the insertion / removal direction.

[0033] Beneficial effects

[0034] Firstly, this improved solution comprises three parts: an optical module, a socket, and a PCB board. The optical module has a guiding and fixing structure around its optical interface. The socket's optical interface is movable relative to its electrical interface. A structure is designed around the socket's optical interface to cooperate with the optical module's guiding and fixing structure. Specifically, during the insertion process between the socket and the optical module, precise alignment can be achieved through a four-level guiding structure. When the socket and optical module are inserted, the optical module first enters the locking frame. Therefore, the first-level guiding structure consists of the outer shape of the optical module and the inner cavity of the socket's locking frame. During further alignment, guide elements, such as guide posts, are placed around the optical interface on the mating surfaces of the optical module and the socket. The guide hole, combined with the guide component, further guides the optical interfaces of the two components to align. When the plug interface of the socket floating frame contacts the outer edge of the optical interface of the optical module, a guide cavity that mates with the outer edge of the optical interface is provided in the plug interface, and an inner chamfer is provided at the front end of the inner edge of the guide cavity to further guide the optical interfaces of the two components to align. Finally, a guide pin is provided at the optical interface of the socket or optical module to achieve precise alignment. Therefore, the alignment process of this solution is a plugging process that gradually increases the alignment accuracy. The alignment accuracy is gradually improved through a four-level guide mechanism, which more accurately ensures the connection and stability of the optical interface and avoids the occurrence of force deviation during the plugging process.

[0035] Secondly, this solution incorporates guide pillars and guide holes on the optical interface mating surfaces of the optical module and socket. These guide structures lift the floating frame of the socket. Through the coordination of the guide structure's precision A, the socket's guide precision B, and the guide structure's length L, the optical module and socket are kept as horizontal as possible, i.e., angle C equals 0°. Based on current manufacturing precision (AB / 2 is estimated to be 0-0.05mm), to ensure product performance, the length L should not be less than 3mm, ensuring an angle <1° and approaching horizontality.

[0036] Thirdly, in this design, the floating frame can move up, down, left, and right within the cavity, allowing the optical interface to float relative to the electrical interface. At the same time, a limiting structure is provided on the mating surface between the floating frame and the cavity. On the one hand, it can counteract the elasticity of the optical interface and prevent the floating frame from continuing to move in the insertion direction. On the other hand, it can prevent the floating frame from arbitrarily detaching in the pull-out direction. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of the invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram illustrating the connection between the optical module and the socket of the present invention;

[0039] Figure 2 This is a perspective view of the optical module of the present invention;

[0040] Figure 3 This is a front view of the optical module in this invention;

[0041] Figure 4 This is a top view of the optical module in this invention;

[0042] Figure 5 This is a side view of the optical module in this invention;

[0043] Figure 6 This is a structural diagram of the socket in this invention (disassembled state);

[0044] Figure 7 This is a schematic diagram of the installation of the electrical interface and the PCB board in this invention;

[0045] Figure 8 Schematic diagram of the floating frame being inserted relative to the cavity. Figure 1 (Once the floating frame is in place, it cannot move backward relative to the cavity.)

[0046] Figure 9 Schematic diagram of the floating frame being inserted relative to the cavity. Figure 2(Once the floating frame is in place, it cannot move forward relative to the cavity.)

[0047] Figure 10 A schematic diagram showing the installation direction of the floating frame;

[0048] Figure 11 This is a diagram showing the relationship between the optical interface angle, guidance accuracy, and guidance mating length in this invention.

[0049] Figure 12 This is a cross-sectional view after the optical module and socket are connected.

[0050] Figure 13 This is a structural diagram of the cavity above the electrical interface component;

[0051] Figure 14 for Figure 13 Enlarged view of point B in the middle;

[0052] Figure 15 Diagram showing the connection between the floating frame and the cavity. Figure 1 ;

[0053] Figure 16 for Figure 15 Enlarged view of point C in the middle;

[0054] Figure 17 Diagram showing the connection between the floating frame and the cavity. Figure 2 ;

[0055] Figure 18 for Figure 17 Enlarged view at point D;

[0056] Figure 19 This is a diagram showing the internal structure of the socket in Example 2;

[0057] Figure 20 This is a structural diagram of the pins on the socket;

[0058] Figure 21 This is a structural diagram of the pinhole on the optical module;

[0059] Figure 22 This is a diagram illustrating how optical interfaces cannot float relative to electrical interfaces in existing technologies.

[0060] Figure 23 This diagram shows the relative floating of the optical interface to the electrical interface in this solution (before and after plugging in).

[0061] The diagram shows the following markings: 1. Socket; 11. Electrical interface component; 111. Housing; 112. Electrical interface slot; 12. Optical interface component; 121. Pin socket; 122. Fixing base; 123. Spring; 124. Guide pin; 13. Locking frame; 131. Insert post; 132. Positioning platform; 133. Receiving section; 134. Guide section; 135. Locking plate; 136. Locking head; 137. Locking platform; 14. Floating frame; 141. Socket; 1411. Guide cavity. 1412, Inner chamfer; 143, Guide hole; 144, Cavity; 145, Mating surface; 146, Locking hole; 100, Cavity; 101, Card holder; 102, Stop platform; 105, Locking spring arm; 1051, Locking contact; 1052, Stop surface; 1053, Guide slope; 2, Optical module; 21, Fixing frame; 22, Optical interface; 221, Guide pin hole; 23, Electrical interface; 24, Guide post; 25, Locking block; 3, PCB board; 31, Insertion hole.

[0062] 300, optical port; 400, electrical port; 500, optical pin; 600, electrical pin. Detailed Implementation

[0063] The present invention will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0064] It should be noted that, unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "a," "an," or "the," etc., used in the specification and claims of this patent application do not express a quantity limitation, but rather indicate the presence of at least one. Terms such as "comprising" or "including" indicate that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, but do not exclude other elements or objects having the same function. In this embodiment, "front," "back," "left," "right," "up," and "down" are all used to indicate... Figure 10 Based on, the left and right directions are based on Figure 10 The reference point for the viewpoint of the middle arrow is for ease of description and is not a limitation on the orientation of the components.

[0065] Example 1

[0066] like Figure 1As shown, this embodiment discloses an optical module socket connector, including a PCB board 3, a socket 1 for electrical signal and optical signal connection, and an optical module 2. The socket 1 is fixed on the PCB board 3 to form an assembly, which is then fixed on a panel 4. The socket 1 includes an electrical interface component 11, an optical interface component 12, a locking frame 13, and a floating frame 14. The optical interface component 12 is installed inside the locking frame 14 to form an integral component. This integral component and the electrical interface component 11 are stacked and located at one end of the inner cavity of the locking frame 13. The integral component can move relative to the electrical interface component 12 in any direction perpendicular to arrow A. The entire insertion process of the optical interface of the socket 1 and the optical module 2 requires a four-level guiding structure to achieve precise docking. The floating principle of the optical interface relative to the electrical interface is described in [reference needed]. Figure 23 The optical interface (composed of optical port 300 and optical port pin 500) can float relative to the electrical interface (composed of electrical port 400 and electrical port pin 600).

[0067] This solution, such as Figure 2 , 6 As shown in Figure 19, the entire insertion process is divided into four steps. The optical module 2 enters through the guide section 134 of the locking frame 13 of the socket 1. The first-level guiding structure includes the outer body of the optical module 2 and the guide section 134 of the locking frame 13. The outer body of the optical module 2 refers to the shape of the optical module 2. The shape of the optical module 2 is adapted to the internal space of the guide section 134. As the optical module 2 continues to move from the guide section 134 of the locking frame 13 towards the optical interface component 12, the guide of the mating surface of the optical module 2 and the socket 1 will come into contact as the second-level guiding structure. The guide can adopt, for example, a structure in which the guide post 24 and the guide hole 143 cooperate. When the guide post 24 and the guide hole 143 are guided and inserted, the optical interface 22 of the optical module 2 enters the floating frame insertion interface 141 of the socket 1. The front end of the insertion interface 141 is provided with an inner chamfer 1412. The insertion interface 141 also includes a guide cavity 1411. The cross-section of 1 is a square hole. The square hole guide cavity 1411 is set at the rear end of the inner chamfer 1412. The inner chamfer 1412, the square hole and the outer edge of the optical interface 22 of the fixed frame 21 play a third-level guiding role, which facilitates the optical interface 22 to enter the optical interface slot of the floating frame 14. The fourth-level guidance is achieved by installing guide pins 138 and guide pin holes 221 on the optical module 2 and the optical interface 22 respectively. The guide pins 138 and guide pin holes 221 cooperate to achieve precise docking. In the entire insertion process, the insertion accuracy is gradually improved through the multi-level guiding structure to avoid the situation of force deviation during the insertion process. The relative position of the optical interface can float up and down within a certain range. Therefore, the guide post 24 and guide pin 138 of the optical interface are used to fix the up, down and left and right positions, so that the two mating optical interfaces are kept at the same position, and the optical interface is not swayed during vibration as much as possible, so as to ensure the reliability and stability of the connection after the optical interface 22 is inserted.

[0068] Specifically, refer to Figure 6-9 The socket 1 can adopt the following structure: the socket 1 includes an electrical interface component 11, an optical interface component 12, a locking frame 13, and a floating frame 14. The socket 1 is fixed to the PCB board 3 to form an assembly, which is then installed on the panel 4. The locking frame 13 is fixedly connected to the PCB board 3. The bottom of the electrical interface component 11 is soldered to the PCB board to achieve electrical connection. A positioning post is provided at the bottom of the electrical interface component 11, which can cooperate with the positioning holes on the PCB board 3, thereby facilitating the installation, positioning, and soldering of the electrical interface component 11. The optical interface component 12 is installed in the floating frame 14 to form an integral part. A cavity 100 is formed above the electrical interface component 11. The integral part consisting of the optical interface component 12 and the floating frame 14 is installed in the cavity 100 above the electrical interface component 11, thus forming a stacked arrangement of the electrical interface component 11 and the optical interface component 12. The floating frame 14 is located in the cavity 100 above the electrical interface component 11. Figure 10 Based on the viewpoint facing the arrow direction, the dimensions of the cavity 100 in the up, down, left, and right directions are larger than the corresponding external dimensions of the floating frame 14, ensuring that the floating frame 14 can move freely within the reference plane of the cavity 100 (i.e., the floating frame 14 can move freely within the cavity 100). The reference plane refers to... Figure 10 The vertical plane is perpendicular to the direction of the arrow, thus ensuring that the optical interface component 12 can adaptively adjust its movement relative to the electrical interface component 11 during the insertion process.

[0069] In this plan, such as Figure 7 The electrical interface component 11 includes a housing 111, which has an upper surface, a lower surface, and a first side surface connected to the upper and lower surfaces. An electrical interface slot 112 is provided on the first side surface. A cavity 100 for mounting a floating frame 14 is provided above the housing 111. The side wall of the cavity 100 can be integrally formed with the housing 111 of the electrical interface component 11 or assembled and fixed. In the first method, when the side wall of the cavity is integrally formed with the housing 111, a mounting opening for the floating frame 14 is formed at one end of the cavity 100. A limit mechanism is provided on the mating surface of the side walls of the cavity 100 and the floating frame 14 to prevent the floating frame 14 and the optical interface component 12 from moving along the edge. Figure 10The back-and-forth movement is shown in the figure. The second method: When the sidewall of the cavity 100 is assembled with the housing 111, a retainer 101 is provided at the edge of the bottom wall of the cavity 100. The retainer 101 includes multiple retainers located at the corners of the bottom wall of the cavity 100. The retainers can firmly fix the cavity 100 to the top of the housing 111. Preferably, a retaining plate is also provided on the inner side of the retainer, thus forming a strong fit with the outer wall of the housing 11. This design ensures that the retainers are not easily detached after being installed on the housing 111. In an embodiment without accompanying drawings, the retainer does not use the corner structure shown in the figure, but is a smooth spring plate. A retaining plate is provided on the inner side of the spring plate, and a groove is provided on the outer wall of the housing 111 to mate with the retaining plate. When the retainer 101 is installed in place, the retaining plate will fall into the groove. A limiting mechanism is provided on the mating surface of the cavity 100 and the floating frame 14 to prevent the floating frame 14 and the optical interface component 12 from moving along... Figure 10 The movement is shown in the front-to-back direction.

[0070] In this embodiment, refer to Figure 13-18 The specific structure of the limiting mechanism is as follows: a stop plate 102 is provided on the inner wall of the cavity 100, and stop plates 145 matching the stop plate 102 are provided on the outer walls of both sides of the floating frame 14. Figure 17 and 18 In the middle, the first stop plate 102 and the second stop plate 145 work together to form a rear stop structure, which can prevent the floating frame 14 from continuing to move backward relative to the cavity 100 after it is installed in place; for example Figure 13-16 The front stop structure includes a locking spring arm 105 and a locking hole 146. The fixed end of the locking spring arm 105 is connected to the inner wall of the cavity 100, and the free end of the locking spring arm 105 forms a locking contact 1051. Locking holes 146 are also provided on the side walls of the outer sides of the floating frame 14. When the floating frame 14 is installed in place within the cavity 100, the locking contact 1051 will fall into the locking hole 146, preventing the floating frame 14 from being pulled out towards the front of the cavity 100. The locking contact 1051 has a stop surface 1052 and a guide slope 1053. The stop surface 1052 is used to engage with the edge of the locking hole 146 to prevent the floating frame 14 from being pulled out of the cavity 100. The guide slope 1053 is used to guide the floating frame 14 into the cavity 100, reducing installation resistance.

[0071] In this design, the lower edges of both sides of the locking frame 13 are provided with insertion posts 131, and the PCB board 3 is provided with insertion holes 31 that cooperate with the insertion posts 131. The locking frame 13 cooperates with the insertion holes 31 of the PCB board 3 through the insertion posts 131. The inner cavity of the locking frame 13 includes a receiving cavity 133 and a guiding cavity 134 that are connected. The receiving cavity 133 is used to install the floating frame 14, the optical interface component 12 and the electrical interface component 11. The guiding cavity 134 is used to guide the optical module 2 to connect with the socket 1 during insertion, and is also used to lock and fix the optical module 2 after insertion. A locking plate 135 is provided at the port of the guide cavity 134. The two sides of the locking plate 135 form gaps with the side walls of the locking frame 13, so that the locking plate 135 has a certain elasticity. The free end of the locking plate 135 is provided with a locking head 136, which is used to cooperate with the locking blocks 25 on both sides of the optical module 2. When the optical module 2 is installed in place, the locking plate 135 abuts against the locking block 25, thereby firmly locking the inserted optical module 2 through the locking frame 13.

[0072] In this embodiment, a fixed cavity 144 for mounting the optical interface component 12 is formed within the floating frame 14. The optical interface component 12 is disposed within the fixed cavity 144. The optical interface component 12 includes a pin socket 121 and a fixed seat 122. The optical interface is disposed on the pin socket 121, and the fixed seat 122 is fixedly disposed at the tail end of the fixed cavity 144. A spring 123 is disposed between the pin socket 121 and the fixed seat 122. A spring mounting hole is provided on the end face of the fixed seat 123, and the spring 123 is installed in the spring mounting hole. A guide post is disposed on the pin socket 121. The guide post is inserted into the spring mounting hole and abuts against the end of the spring 123. The spring 123 can elastically abut against the pin socket 121 and the fixed seat 122 at both ends respectively. The pin socket 121 can move relative to the fixed seat 122 in the front-back direction along the fixed cavity 144, thereby providing elastic force for reliable docking of the pin socket 121 and the optical module 2 that it cooperates with.

[0073] In this embodiment, as Figure 2-5 The optical module 2 includes an electrical interface 23, an optical interface 22, and an MT fixing frame 21. Both the optical interface 22 and the electrical interface 23 are fixed to the MT fixing frame 21 to form a single unit, with the optical interface 22 located above the electrical interface 23. This design is based on two considerations: firstly, placing the electrical interface 23 below the optical interface 22 makes soldering the electrical interface 23 to the PCB board 3 easier; secondly, if the optical interface 22 and the electrical interface 23 were arranged horizontally, the overall width would be wider, resulting in a more rational vertical spatial layout. Locking blocks 25 are provided on both sides of the optical module 2 to cooperate with the locking plates 136 of the locking frame 13, securely locking the inserted optical module 2 inside the locking frame 13.

[0074] In this embodiment, the floating frame 14 and the guide on the insertion mating surface of the optical module 2 cooperate to form a second-level guiding structure. The second-level guiding structure includes the following two implementation methods: The first implementation method is: In the optical module 2, the guide is set around the optical interface 22, and the guide is a guide post 24; In the socket 1, guide holes 143 that cooperate with the guide posts 24 are provided on both sides of the insertion interface 141 of the floating frame 14. A flared guide surface is also provided at the port of the guide hole 143 to facilitate the entry of the end of the guide post 24. When there are two or more guide posts 24, they are symmetrically distributed on both sides of the optical interface 22 or evenly distributed around the optical interface 22; The length of the guide post 24 should not be less than 3mm, so that it can lift the floating frame 14 of the socket 1 during the insertion process, so that the other optical module 2 guiding structures can be aligned when inserted. Figure 11 As shown, the coordination between the guide structure precision A, the socket guide precision B, and the guide structure length L ensures that the optical module 2 and the socket 1 are kept as horizontally aligned as possible, i.e., angle C equals 0°. Based on the current estimated processing precision AB / 2 of 0-0.05mm, to guarantee product performance, the guide structure L should be designed to be no less than 3mm in length. This design ensures that angle C < 1°, thereby achieving the goal of keeping the optical module 2 and the socket 1 as horizontally aligned as possible.

[0075] In this scheme, the plug-in interface 141 of the floating frame 14 includes a guide cavity 1411 with a rectangular cross-section and an inner chamfer 1412 located at one end of the guide cavity. The plug-in interface 141 is used to cooperate with the outer edge of the socket of the optical interface 22 of the optical module 2 to form a third-level guide structure. The function of setting the inner chamfer 1412 is to facilitate the smooth entry of the outer edge of the socket of the optical interface 22 into the plug-in interface 141 of the floating frame 14.

[0076] In this design, guide pins 124 are symmetrically arranged on the insertion surface of the optical interface component 12 of the pin socket 121, and guide pin holes 221 are provided on the insertion mating surface of the optical interface 22 of the optical module 2. The guide pins 124 and guide pin holes 221 cooperate to form a fourth-level guiding structure, thereby providing high-precision guidance for the precise docking of the optical interface 22 and the optical interface component 11. At the same time, the optical interface slot and the optical interface pin end are kept at the same position to minimize swaying during vibration, ensuring the reliability and stability of the connection after the optical interface 22 is inserted.

[0077] In another implementation of this solution, the optical interface component 12 is fixedly installed above the electrical interface component 11, meaning that the positions of the two are fixed and will not float relative to each other. Through the multi-level guiding structure described above, the optical module 2 and the socket 1 can improve their docking accuracy and achieve precise docking under this structure.

[0078] Example 2

[0079] In this scheme, there is another way to install the floating frame 14: the locking frame 14 is installed from top to bottom, surrounding the electrical interface component 11. The inner wall of the locking frame 14 and the top of the electrical interface component 11 form a mounting cavity. The floating frame 14 is directly installed in the mounting cavity formed above the electrical interface component 11 by the locking frame 13, thus making the floating frame 14 and the electrical interface component 11 independently set up. Figure 19 The vertical and horizontal dimensions of the mounting cavity are larger than the external dimensions of the floating frame 14, allowing the floating frame 14 to move in the vertical and horizontal directions shown in the figure. Limiting structures are designed in the front-back direction of the cavity, such as positioning platforms 132 at the front and back of the receiving cavity 133. The floating frame 14 is installed within the two positioning platforms 132, preventing it from moving relative to the electrical interface component 11 in the front-back direction. In this embodiment, the receiving cavity 133 for the floating frame 14 to move is directly formed by the structure of the locking frame 13 itself, and the front-back direction of the floating frame 14 is limited by the positioning platforms 132 on both sides. One end of the receiving cavity 133 communicates with the guide cavity 134 for guiding the optical module 2 into it.

[0080] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An optical module receptacle adaptation structure, characterized by: The socket and the optical module are relatively plugged; the socket comprises an electrical interface part, an optical interface part and a locking frame; the optical interface part and the electrical interface part are arranged in the locking frame; the optical module comprises a fixed frame, the fixed frame is provided with an optical interface matched with the optical interface part and an electrical interface matched with the electrical interface part; during the plugging process of the optical module and the socket, the outer wall of the fixed frame of the optical module and the inner cavity of the locking frame form a cooperation to realize the guided plugging of the socket and the optical module; The optical interface part is installed in the floating frame, and the floating frame is floatingly arranged in the socket cavity; the size of the socket cavity is larger than the corresponding size of the floating frame, so that the floating frame can move in any direction along the vertical plane perpendicular to the plugging direction of the socket cavity; a limiting mechanism is arranged on the side wall cooperation surface of the socket cavity and the floating frame, and is used for blocking the floating frame and the optical interface part from moving in the plugging direction; A guide column is arranged on the cooperation surface of the fixed frame or the optical interface part, and a guide hole matched with the guide column is correspondingly arranged on the cooperation surface of the optical interface part or the fixed frame; A guide needle is arranged on the optical interface of the optical module or the optical interface part of the socket, and a guide needle hole matched with the guide needle is arranged on the optical interface of the optical module or the optical interface part of the socket.

2. An optical module receptacle adaptation structure according to claim 1, characterized in that: The socket is provided with a plugging port matched with the outer edge of the optical interface of the fixed frame; the plugging port comprises a guide cavity with a rectangular cross section and an inner chamfer at the port of the guide cavity, and is used for guiding the optical interface of the optical module to enter.

3. An optical module receptacle adaptation structure as claimed in claim 1, characterized in that: In the optical module, the optical interface and the electrical interface are fixed on the fixed frame to form an integral piece, and the optical interface is located above the electrical interface.

4. An optical module receptacle adaptation structure according to any one of claims 1 to 3, characterized in that: The length of the guide column in the plugging direction is not less than 3mm; the plugging direction is the plugging direction of the optical module and the socket.

5. An optical module receptacle mating structure as claimed in claim 1, wherein: The optical interface part comprises a plug pin seat and a fixed seat, and a spring is arranged between the plug pin seat and the fixed seat, so that the plug pin seat can move relative to the fixed seat in the plugging direction of the socket.

6. An optical module receptacle adaptation structure as claimed in claim 1, characterized in that: The socket cavity and the floating frame are provided with a limiting mechanism, and the limiting mechanism comprises a front stop structure and a rear stop structure; The front stop structure comprises a locking elastic arm and a lock hole, one end of the locking elastic arm is fixedly connected with the side wall of the socket cavity, the other end forms a locking contact, and the floating frame is provided with a lock hole; after the floating frame is inserted into the socket cavity, the locking contact falls into the lock hole, and is used for blocking the floating frame from being pulled out of the socket cavity in the pulling-out direction; The rear stop structure comprises a stop table one and a stop table two, the stop table one is located on the inner wall of the socket cavity, and the stop table two is located on the outer side wall of the floating frame, and is used for limiting the floating frame in the plugging direction.

7. An optical module receptacle mating structure as set forth in claim 1, further characterized by: The side wall of the socket cavity and the shell of the electrical interface part are integrally formed.

8. An optical module receptacle adaptation structure as claimed in claim 1, characterized in that: The socket cavity is surrounded by the locking frame and the top of the electrical interface part, and the locking frame is provided with a positioning table, which is used for blocking the floating frame from being pulled out of the locking frame when the floating frame floats in the plugging direction.

9. A socket, characterized by: It is the socket in any one of the optical module socket adaptation structures of claims 1-8.

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