Signal transmission module and female connector

Abstract

This application discloses a signal transmission module and a female connector, relating to the field of connector technology, and aims to solve the problems of poor grounding and shielding effects of existing shielding plates. This application provides a signal transmission module for a female connector, comprising a circuit board and a shielding plate. The circuit board has a horizontal plane and a vertical plane that are perpendicular to each other. A first mating portion is provided on the horizontal plane, and a second mating portion is provided on the vertical plane. Both the first and second mating portions are electrically connected to a grounding line in the circuit board. The shielding plate is connected to the circuit board and includes a grounding pin electrically connected to the first mating portion and a conductive portion electrically connected to the second mating portion. This application aims to improve the grounding and shielding effects of the shielding plate.

Description

Technical Field

[0001] This application relates to the field of connector technology, specifically to a signal transmission module and a female connector. Background Technology

[0002] Currently, in the field of high-speed backplane connectors, the female connector and the circuit board are mostly connected by crimping, soldering and other technologies.

[0003] However, due to the limited space between the circuit board and the female connector, the number of electrical connections between the shielding plate in the female connector and the circuit board is limited, resulting in a limited number of transmission paths and shielding return currents between the female connector and the circuit board, which in turn limits the grounding and shielding effects of the aforementioned shielding plate.

[0004] Therefore, there is an urgent need to provide a signal transmission module with good grounding and shielding effects. Summary of the Invention

[0005] This application provides a signal transmission module and a female connector to solve the problems of poor grounding and shielding effects of existing shielding plates.

[0006] To achieve the above objectives, this application provides a signal transmission module for a female connector, the signal transmission module comprising:

[0007] A circuit board has a horizontal plane and a vertical plane that are perpendicular to each other. A first mating part is provided on the horizontal plane, and a second mating part is provided on the vertical plane. Both the first mating part and the second mating part are electrically connected to the grounding line in the circuit board.

[0008] A shielding plate is connected to the circuit board. The shielding plate includes a grounding pin electrically connected to the first mating portion and a conductive portion electrically connected to the second mating portion.

[0009] In some embodiments of this application, the shielding plate includes a mounting edge near the circuit board. The mounting edge includes a first mounting edge facing the horizontal plane and a second mounting edge connected to the first mounting edge and facing the vertical plane. The grounding pin is disposed on the first mounting edge and protrudes from the first mounting edge in a first direction. The conductive part is disposed on the second mounting edge and protrudes from the second mounting edge towards the first mounting edge. The first direction is the direction in which the first mounting edge is close to the circuit board.

[0010] In some embodiments of this application, the shielding plate further includes a mating edge, which is located on the outer periphery of the shielding plate and vertically disposed on the side of the second mounting edge away from the first mounting edge. The return path between the conductive part and the mating edge is shorter than the return path between the grounding pin and the mating edge.

[0011] In some embodiments of this application, the conductive part is an elastic conductive arm, the second mating part is a metal mating layer disposed on the vertical surface, and the elastic conductive arm is in contact with the metal mating layer.

[0012] In some embodiments of this application, the second mounting edge has a recessed portion that is recessed in a direction away from the first mounting edge at the position corresponding to the elastic conductive arm. When the elastic conductive arm contacts the metal mating layer, the elastic conductive arm will undergo elastic deformation in the recessed direction of the recessed portion under the action of the vertical surface. The recessed portion can provide a deformation space for the elastic conductive arm.

[0013] In some embodiments of this application, the elastic conductive arm includes a fixed end, an arched abutment portion, and a free end connected sequentially along a second direction. The fixed end is connected to the second mounting edge, the arched abutment portion protrudes toward the first mounting edge and contacts the metal mating layer, and the free end does not contact the shielding plate. The second direction is opposite to the first direction.

[0014] In some embodiments of this application, the free end is provided with a scratch-resistant portion, which can prevent the free end from scratching the metal mating layer.

[0015] In some embodiments of this application, the shielding plate is provided with a limiting part, which is located at the connection between the first mounting edge and the second mounting edge. When the grounding pin is inserted into the circuit board from above, the limiting part abuts against the horizontal surface to limit the relative position of the grounding pin and the conductive part with the circuit board in the vertical direction.

[0016] In some embodiments of this application, the shielding plate has multiple shielding plates arranged at intervals, and each shielding plate is provided with a conductive part electrically connected to the second docking part. The multiple conductive parts arranged adjacently are electrically connected to the same second docking part or are correspondingly arranged with and electrically connected to multiple second docking parts.

[0017] Compared to existing technologies, the signal transmission module of this application adds a conductive portion to the shielding plate, which is electrically connected to a second mating portion on the vertical surface of the circuit board. During assembly of the shielding plate and the circuit board, the operator presses the shielding plate onto the circuit board from above, and the first mating portion on the circuit board is connected to the grounding pin on the shielding plate. Simultaneously, the second mating portion on the circuit board is connected to the conductive portion on the shielding plate. This increases the return path between the shielding plate and the circuit board without increasing the area of ​​the circuit board, ensuring a good grounding effect for the signal transmission module.

[0018] On the other hand, this application also provides a female connector that includes the aforementioned signal transmission module.

[0019] Since the signal transmission module in the aforementioned female connector and the aforementioned signal transmission module have the same result, they can both play the same role in solving the same technical problem. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the signal transmission module in an embodiment of this application;

[0022] Figure 2 This is a schematic diagram of the shielding plate in an embodiment of this application;

[0023] Figure 3 This is a right view of the signal transmission module in an embodiment of this application.

[0024] The main reference numerals in the drawings of this application are explained as follows:

[0025] 1-Circuit board; 11-Horizontal plane; 12-Vertical plane; 121-Second mating part;

[0026] 2-Shielding plate; 21-Grounding foot; 22-Conductive part; 221-Fixed end; 222-Arched abutment part; 223-Free end; 23-Mounting edge; 231-First mounting edge; 232-Second mounting edge; 24-Mating edge; 25-Recessed part; 26-Limiting part. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0029] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; or they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] This application provides a signal transmission module and a female connector, which are described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments of this application. Furthermore, in the following embodiments, the descriptions of each embodiment have their own emphasis; parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments.

[0032] Reference Figure 1The signal transmission module provided in this application is used for a female connector. The signal transmission module includes a circuit board 1 and a shielding plate 2. The circuit board 1 has a horizontal surface 11 and a vertical surface 12 that are perpendicular to each other. A first mating portion is provided on the horizontal surface 11, and a second mating portion 121 is provided on the vertical surface 12. Both the first mating portion and the second mating portion 121 are electrically connected to a grounding line in the circuit board 1. The shielding plate 2 is connected to the circuit board 1. The shielding plate 2 includes a grounding pin 21 electrically connected to the first mating portion and a conductive portion 22 electrically connected to the second mating portion 121.

[0033] Compared to existing technologies, the shielding plate 2 in the signal transmission module of this application is equipped with a conductive portion 22 that electrically connects to the second mating portion 121 on the vertical surface 12 of the circuit board 1. When assembling the shielding plate 2 and the circuit board 1, the operator needs to press the shielding plate 2 onto the circuit board 1 from above, and the first mating portion on the circuit board 1 becomes conductive with the grounding pin 21 on the shielding plate 2. Simultaneously, the second mating portion 121 on the circuit board 1 becomes conductive with the conductive portion 22 on the shielding plate 2. This increases the return path between the shielding plate 2 and the circuit board 1 without increasing the area of ​​the circuit board 1, ensuring that the signal transmission module has a good grounding effect.

[0034] It is understandable that when the above transmission module is used in the female connector, it can provide good shielding for the conductive terminals (such as differential signal terminals) that require protection in the female connector, which helps to prevent crosstalk between adjacent conductive terminals.

[0035] The shielding plate 2 includes a mounting edge 23 near the circuit board 1. The mounting edge 23 includes a first mounting edge 231 facing the horizontal plane 11 and a second mounting edge 232 connected to the first mounting edge 231 and facing the vertical plane 12. The grounding pin 21 is disposed on the first mounting edge 231 and faces a first direction (i.e., Figure 1 The first mounting edge 231 protrudes outward from the second mounting edge 232 (facing downwards), and the conductive part 22 is disposed on the second mounting edge 232 and protrudes outward from the second mounting edge 232 towards the first mounting edge 231. The first direction is the direction in which the first mounting edge 231 approaches the circuit board 1. This ensures that the extension trend of the mounting edge 23 is approximately the same as the extension trend of the horizontal surface 11 and the vertical surface 12 on the circuit board 1, facilitating their installation. Simultaneously, the conductive part 22 is disposed on the second mounting edge 232 and protrudes outward from the second mounting edge 232 towards the first mounting edge 231, and the second mating part 121 faces the second mounting edge 232, i.e., the conductive part 22 faces the second mating part 121, which helps ensure the conductivity between the conductive part 22 and the second mating part 121.

[0036] More specifically, refer to Figure 1 The shielding plate 2 is generally plate-shaped. A notch is provided on the bottom edge of the shielding plate 2, extending through the left edge and a portion of the bottom edge (the notch does not extend through the right edge) to form the mounting edge 23. This notch is used to accommodate the circuit board 1, enabling assembly between the circuit board 1 and the shielding plate 2. The left and right edges of the shielding plate 2 are... Figure 1 The left and right edges of the shielding plate 2 shown are approximately perpendicular to each other, and the first mounting edge 231 and the second mounting edge 232 are approximately perpendicular to each other.

[0037] Alternatively, the aforementioned mounting edge 23 may consist of only a horizontally arranged first mounting edge 231, on which both the conductive portion 22 and the grounding pin 21 are disposed. More specifically, the conductive portion 22 is disposed closer to the vertical surface 12 than the grounding pin 21. In this embodiment, the aforementioned shielding plate 2 is generally square, such as a square or rectangle.

[0038] Based on the above embodiments, the shielding plate 2 further includes a mating edge 24 (i.e., Figure 1 The right edge shown), the mating edge 24 is located on the outer periphery of the shielding plate 2 and is vertically arranged (i.e., the right edge shown). Figure 1 The vertical direction of the second mounting edge 232 is configured such that the mating edge 24 is on the side of the second mounting edge 232 opposite to the first mounting edge 231. Figure 1 On the right edge of the shielding plate 2, the return path between the conductive part 22 and the mating edge 24 is shorter than the return path between the grounding pin 21 and the mating edge 24, thereby ensuring that the return path of the conductive part 22 is shorter, so as to further increase the grounding effect and shielding effect of the shielding plate 2.

[0039] More specifically, there is an appropriate distance between the second mounting edge 232 and the mating edge 24, that is, at least a portion of the shielding plate 2 extends out of the area where the circuit board 1 is located in the direction away from the first mounting edge 231 from the second mounting edge 232, so as to facilitate the mating edge of the shielding plate 2 to be mated with another connector, that is, to facilitate the mating between the female connector with the above-mentioned signal transmission module and the male connector.

[0040] To ensure that the conductive part 22 and the second mating part 121 are easy to implement and have good contact, the conductive part 22 is an elastic conductive arm, and the second mating part 121 is a metal mating layer disposed on the vertical surface 12, with the elastic conductive arm in contact with the metal mating layer. In some embodiments, the metal mating layer is a copper layer plated on the vertical surface 12.

[0041] In other embodiments of this application, the second mating portion 121 is an elastic protrusion protruding from the vertical surface 12, and the conductive portion 22 is an elastic contact protruding from the second mounting edge 232. The protrusion directions of the elastic protrusion and the elastic contact are opposite.

[0042] Reference Figure 1 and Figure 2 The second mounting edge 232 has a recessed portion 25 that is recessed in the direction away from the first mounting edge 231, corresponding to the position of the elastic conductive arm. When the elastic conductive arm contacts the metal mating layer, the elastic conductive arm will undergo elastic deformation in the direction of the recessed portion 25 under the action of the vertical surface 12. The recessed portion 25 can provide a deformation space for the elastic conductive arm, so as to prevent the elastic conductive arm from being crushed by the vertical surface 12 and causing irreversible deformation. Irreversible deformation cannot be automatically recovered.

[0043] It should be noted that the elastic conductive arm described above undergoes elastic deformation toward the recessed direction of the recessed portion 25 under the action of the vertical surface 12, meaning that after the external force is removed (in this embodiment, it refers to the pressure applied by the vertical surface 12 to the elastic conductive wall), the elastic conductive arm can return to its original state, and its deformation is reversible.

[0044] There are multiple grounding feet 21, which are arranged in a row along the extension direction of the first mounting edge 231. For example, the shielding plate 2 of this application has three downwardly extending grounding feet 21 formed on the first mounting edge 231.

[0045] Continue to refer to Figure 2 The elastic conductive arm includes a second direction (i.e., Figure 1 and Figure 2 The shielding plate 2 consists of a fixed end 221, an arched abutment portion 222, and a free end 223 connected sequentially in an upward direction. The fixed end 221 is connected to the second mounting edge 232. The arched abutment portion 222 protrudes towards the first mounting edge 231 and contacts the metal mating layer. The free end 223 does not contact the shielding plate 2. The second direction is opposite to the first direction. That is, the free end 223 is positioned upward relative to the fixed end 221, and its direction is opposite to the insertion direction (downward) of the shielding plate 2, providing sufficient deformation space to ensure that the shielding plate 2 is not damaged during insertion.

[0046] More specifically, the aforementioned elastic conductive arm has a cantilever structure.

[0047] Furthermore, the free end 223 is provided with a scratch-resistant part, which can prevent the free end 223 from scratching the metal mating layer, ensuring that the contact surface of the metal mating layer will not be damaged, thereby ensuring the contact stability and reliability between the metal mating layer and the elastic conductive arm.

[0048] The aforementioned scratch-resistant portion can be formed by recessing the free end 223 toward the recessed portion 25. Alternatively, it can be formed by fitting a protective cap made of an elastic material, such as rubber or silicone, onto the free end 223.

[0049] Continue to refer to Figure 1 The shielding plate 2 is provided with a limiting part 26, which is located at the connection between the first mounting edge 231 and the second mounting edge 232. When the grounding pin 21 is inserted into the circuit board 1 from above, the limiting part 26 abuts against the horizontal surface 11 of the circuit board 1 to limit the relative position of the grounding pin 21 and the conductive part 22 (e.g., an elastic conductive arm) with the circuit board 1 in the vertical direction. Thus, this application can limit the position of the shielding plate 2 and the circuit board 1 in the vertical direction through the above-described arrangement, that is, ensure good contact between the grounding pin 21 and the first mating part, and between the conductive part 22 (e.g., an elastic conductive arm) and the second mating part 121 (e.g., a metal mating layer) without causing pressure damage.

[0050] The aforementioned limiting portion is formed by a protrusion that protrudes from the first mounting edge 231 and the second mounting edge 232.

[0051] It should be noted that the shielding plate 2 and the various components (grounding foot 21, conductive part 22, and limiting part 26) disposed on the shielding plate 2 are an integral structure and are not detachable. "Not detachable" means that disassembly can only be destructive, not reversible. The term "integrated structure" refers to the fact that the shielding plate 2 and the various components disposed on the shielding plate 2 are manufactured through stamping, stretching, bending, or other manufacturing processes.

[0052] Continue to refer to Figure 1 and Figure 3 The shielding plate 2 has multiple shielding plates 2 arranged at intervals. Each shielding plate 2 is provided with a conductive part 22 that is electrically connected to the second docking part 121. Multiple conductive parts 22 arranged adjacently are electrically connected to the same second docking part 121 or are correspondingly arranged and electrically connected to multiple second docking parts 121.

[0053] For example, Figure 3 The diagram shows conductive portions 22 (see reference numerals) on two adjacent shielding plates 2. Figure 1The two second docking parts 121 (metal docking layer) are in contact with the same second docking part 121. This ensures that the manufacturing process of the second docking part is relatively simple, that is, the two second docking parts 121 can be formed by the same process.

[0054] In some embodiments of this application, a female connector is also provided, which includes the signal transmission module described above.

[0055] Since the signal transmission module in the aforementioned female connector and the aforementioned signal transmission module have the same result, they can both play the same role in solving the same technical problem.

[0056] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0057] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of protection of the claims. Furthermore, specific examples have been used in the specification to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application, and the content of this specification should not be construed as a limitation of this application.

Claims

1. A signal transmission module for a female connector, characterized in that, The signal transmission module includes: A circuit board has a horizontal plane and a vertical plane that are perpendicular to each other. A first mating part is provided on the horizontal plane, and a second mating part is provided on the vertical plane. Both the first mating part and the second mating part are electrically connected to the grounding line in the circuit board. A shielding plate is connected to the circuit board. The shielding plate includes a grounding pin electrically connected to the first mating portion and a conductive portion electrically connected to the second mating portion. The shielding plate includes a mounting edge near the circuit board. The mounting edge includes a first mounting edge facing the horizontal plane and a second mounting edge connected to the first mounting edge and facing the vertical plane. The grounding pin is disposed on the first mounting edge and protrudes from the first mounting edge in a first direction. The conductive part is disposed on the second mounting edge and protrudes from the second mounting edge towards the first mounting edge. The first direction is the direction in which the first mounting edge is close to the circuit board. The shielding plate also includes a mating edge, which is located on the outer periphery of the shielding plate and is vertically arranged on the side of the second mounting edge away from the first mounting edge. The return path between the conductive part and the mating edge is shorter than the return path between the grounding pin and the mating edge.

2. The signal transmission module according to claim 1, characterized in that, The conductive part is an elastic conductive arm, and the second docking part is a metal docking layer disposed on the vertical surface. The elastic conductive arm is in contact with the metal docking layer.

3. The signal transmission module according to claim 2, characterized in that, The second mounting edge has a recessed portion that is recessed in the direction away from the first mounting edge, corresponding to the position of the elastic conductive arm. When the elastic conductive arm contacts the metal mating layer, the elastic conductive arm will undergo elastic deformation in the recessed direction of the recessed portion under the action of the vertical surface. The recessed portion can provide a deformation space for the elastic conductive arm.

4. The signal transmission module according to claim 2, characterized in that, The elastic conductive arm includes a fixed end, an arched abutment portion, and a free end connected sequentially along a second direction. The fixed end is connected to the second mounting edge, the arched abutment portion protrudes toward the first mounting edge and contacts the metal mating layer, and the free end does not contact the shielding plate. The second direction is opposite to the first direction.

5. The signal transmission module according to claim 4, characterized in that, The free end is provided with a scratch-resistant part, which can prevent the free end from scratching the metal mating layer.

6. The signal transmission module according to claim 1, characterized in that, The shielding plate is provided with a limiting part, which is located at the connection between the first mounting edge and the second mounting edge. When the grounding pin is inserted into the circuit board from above, the limiting part abuts against the horizontal surface to limit the relative position of the grounding pin and the conductive part with the circuit board in the vertical direction.

7. The signal transmission module according to claim 1, characterized in that, The shielding plate has multiple shielding plates arranged at intervals. Each shielding plate is provided with a conductive part that is electrically connected to the second docking part. Multiple conductive parts arranged adjacently are electrically connected to the same second docking part or are correspondingly arranged with and electrically connected to multiple second docking parts.

8. A female connector, characterized in that, The signal transmission module includes any one of claims 1 to 7.

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