A fully shielded board-to-board pushbutton electrical connector

Abstract

The utility model discloses a full shielding plate is to board button electric connector, including plug shell and socket shell, the first installation cavity is formed in the plug shell inside, and the first installation cavity has first open end, and the first installation cavity is fixed with the first PCB board parallel to the plane of first open end, and a plurality of spring needles are vertically connected on the first PCB board, and the part edge of first open end is provided with the plug -in ring, the second installation cavity is formed in the socket shell inside, and the second installation cavity has second open end, and the second installation cavity is fixed with the second PCB board parallel to the plane of second open end, and a plurality of connecting contacts are provided with on the second PCB board surface corresponding spring needle, and the part edge of second open end is provided with the plug -in groove, the plug -in ring of plug shell can be embedded in the plug -in groove of socket shell to make spring needle abut at connecting contact. The utility model technical scheme aims at reducing the plug -in and plug -out force, realizes easy plug -in and plug -out.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a fully shielded board-to-board button electrical connector. Background Technology

[0002] Connectors are electromechanical components used to connect electronic devices, circuit boards, or cables to enable signal transmission, power delivery, or data communication. They consist of a plug (male) and a socket (female), conducting current or signals through metal contacts while providing mechanical fixing and protection. Existing board-to-board connectors typically use a direct mating method with rigid pins and sockets. The insertion and removal process requires overcoming significant frictional resistance, especially in high-density, multi-core applications, where the insertion and removal forces increase exponentially, making the connector difficult to insert and remove. Utility Model Content

[0003] The main purpose of this utility model is to provide a fully shielded board-to-board button electrical connector, which aims to reduce insertion and extraction force and achieve easy insertion and extraction.

[0004] To achieve the above objectives, this utility model proposes a fully shielded board-to-board button electrical connector, comprising:

[0005] The plug housing has a first mounting cavity inside, the first mounting cavity has a first open end, a first PCB board is fixed inside the first mounting cavity parallel to the plane where the first open end is located, a plurality of spring pins are vertically connected to the first PCB board, and a plug ring is protruding from part of the edge of the first open end.

[0006] The socket housing has a second mounting cavity inside, the second mounting cavity has a second open end, a second PCB board is fixed inside the second mounting cavity parallel to the plane where the second open end is located, the surface of the second PCB board is provided with a plurality of connecting contact points corresponding to the spring pin, and a plug groove is recessed on part of the edge of the second open end.

[0007] The plug housing's insertion ring can be embedded in the socket housing's insertion slot so that the spring pin abuts against the connection point.

[0008] In one possible implementation, a portion of the surface of the plug housing protrudes to form a button cavity, a pressing member is disposed within the button cavity, and a portion of the pressing member is exposed outside the button cavity for pressing. A spring is disposed between the pressing member and the bottom of the button cavity. The pressing member has a locking arm that extends out of the button cavity, and a first engaging portion protrudes from the end of the locking arm. A portion of the surface of the socket housing protrudes and forms a locking opening with the plug groove. A portion of the edge of the locking opening is bent to form a second engaging portion. The locking arm can extend into the locking opening and engage the first engaging portion with the second engaging portion. Pressing the pressing member can disengage the first engaging portion from the second engaging portion.

[0009] In one possible implementation, the surface of the plug ring is provided with a plurality of guide strips circumferentially, and the inner wall surface of the plug groove is provided with a guide groove corresponding to the guide strips.

[0010] In one possible implementation, a shielding element is provided between the inner wall of the plug housing and the first PCB board, and between the inner wall of the socket housing and the second PCB board. When the plug housing and the socket housing are connected, the two shielding elements are connected to each other and cover the first PCB board and the second PCB board.

[0011] This utility model's technical solution employs a spring-loaded pin structure, requiring only a slight elastic force to overcome during insertion and removal, maintaining low insertion and removal force even with multiple cores, and the rebound force assists in unlocking; a mechanical locking mechanism controlled by a button achieves stable connection, allowing for quick unlocking with a press, preventing vibration-induced detachment; the guide strip / slot design of the insertion ring and slot allows for non-precise alignment insertion while preventing incorrect insertion; the housing's built-in shielding completely encloses the PCB, forming a full metal shielding layer after insertion, providing excellent anti-electromagnetic interference performance; the spring-loaded pins connect vertically to the PCB, saving space and suitable for compact layouts with multiple cores. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of one embodiment of the plug housing of this utility model;

[0014] Figure 2 This is an exploded view of an embodiment of the plug housing of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of an embodiment of the socket housing of this utility model;

[0016] Figure 4 This is an exploded view of an embodiment of the socket housing of this utility model;

[0017] Figure 5 This is a cross-sectional view of an embodiment of the fully shielded board-to-board button electrical connector of this utility model.

[0018] Explanation of icon numbers:

[0019] 1. Plug housing; 11. First PCB board; 12. Spring pin; 13. Plug ring; 14. Guide strip; 2. Socket housing; 21. Second PCB board; 22. Connecting contact point; 23. Plug groove; 24. Guide groove; 3. Button cavity; 31. Pressing element; 32. Spring; 33. Locking arm; 34. First latching part; 4. Locking port; 41. Second latching part; 5. Shielding element.

[0020] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0022] Reference Figures 1 to 5 This utility model proposes a fully shielded board-to-board button electrical connector, including a plug housing 1 and a socket housing 2. The plug housing 1 has a first mounting cavity with a first open end. A first PCB board 11 is fixed in the first mounting cavity parallel to the plane where the first open end is located. A plurality of spring pins 12 are vertically connected on the first PCB board 11. A partial edge of the first open end is provided with a plug ring 13. The socket housing 2 has a second mounting cavity with a second open end. A second PCB board 21 is fixed in the second mounting cavity parallel to the plane where the second open end is located. A plurality of connecting contact points 22 are provided on the surface of the second PCB board 21 corresponding to the spring pins 12. A partial edge of the second open end is provided with a plug groove 23. The plug ring 13 of the plug housing 1 can be embedded in the plug groove 23 of the socket housing 2 so that the spring pins 12 abut against the connecting contact points 22.

[0023] Understandably, the plug housing 1 has a first mounting cavity inside, open at one end, and a first PCB board 11 fixed inside the cavity, parallel to the plane of the open end. Multiple spring pins 12 are vertically mounted on the PCB board, and the edge of the open end has a raised insertion ring 13 for guiding and positioning. The socket housing 2 has a second mounting cavity inside, also open at one end, and a second PCB board 21 fixed inside the cavity, parallel to the plane of the open end. The PCB board has a connecting contact point 22 at the position corresponding to the spring pins 12. In this example, the PCB is copper-plated and gold-plated. The edge of the open end has a recessed insertion groove 23 that matches the insertion ring 13.

[0024] During mating, the plug's insertion ring 13 engages with the socket's insertion slot 23, achieving mechanical alignment. The spring pin 12 is compressed during the mating action, forming an electrical connection with the contact point 22 on the socket's PCB. In use, only the slight rebound force of the spring pin 12 needs to be overcome, whereas traditional connectors require overcoming the frictional resistance between the pins and sockets. Even with multiple pins, the total insertion and extraction force of the spring pin 12 remains relatively low, while traditional pins / sockets, due to their larger contact area and higher frictional resistance, experience a significantly increased insertion and extraction force.

[0025] Reference Figures 1 to 5 In one embodiment of this utility model, a portion of the surface of the plug housing 1 protrudes to form a button cavity 3. A pressing member 31 is provided inside the button cavity 3, and a portion of the pressing member 31 is exposed outside the button cavity 3 for pressing. A spring is provided between the pressing member 31 and the bottom of the button cavity 3. The pressing member 31 has a locking arm 33, which extends out of the button cavity 3, and a first latching part 34 protrudes from the end of the locking arm 33. A portion of the surface of the socket housing 2 protrudes and forms a locking opening 4 with the insertion groove 23. A portion of the edge of the locking opening 4 is bent to form a second latching part 41. The locking arm 33 can extend into the locking opening 4 and latch the first latching part 34 and the second latching part 41. Pressing the pressing member 31 can disengage the first latching part 34 from the second latching part 41.

[0026] Understandably, the button cavity 3 is formed by a protrusion on the surface of the plug housing 1, and a pressing member 31 and a spring are installed inside. The pressing member 31 is partially exposed outside the button cavity 3 for user pressing operation, and a spring 32 is provided between its bottom and the button cavity 3 to provide a reset force. The locking arm 33 of the pressing member 31 extends outside the button cavity 3, and its end has a first engaging portion 34, shaped like a hook protrusion. The locking port 4 is formed by the protrusion on the surface of the socket housing 2 and the insertion groove 23, with part of its edge bent to form a second engaging portion 41, shaped like a flange, for engaging with the first engaging portion 34.

[0027] When the plug is inserted into the socket, the insertion ring 13 engages with the insertion slot 23, and simultaneously the locking arm 33 extends into the locking port 4. The first engaging part 34 of the locking arm 33 automatically engages with the second engaging part 41 of the locking port 4, thus securing the plug and socket and ensuring a stable electrical connection. To unlock, the user presses the pressing element 31, overcoming the pressure of the spring 32, and pushes the locking arm 33 inward. The first engaging part 34 disengages from the second engaging part 41, releasing the mechanical lock. The rebound force of the spring pin 12 helps the plug to be pushed out, allowing for easy removal.

[0028] With the above settings, there is no need to forcefully plug or unplug; simply press the button to unlock. This is suitable for confined spaces or high-density assembly scenarios, and the locking mechanism prevents accidental disconnection caused by vibration or pulling.

[0029] Reference Figures 1 to 4 In one embodiment of the present invention, a plurality of guide strips 14 are circumferentially arranged on the surface of the plug ring 13, and a guide groove 24 is provided on the inner wall surface of the plug groove 23 corresponding to the guide strips 14.

[0030] Understandably, the surface of the insertion ring 13 is provided with multiple guide strips 14 along the circumferential direction, i.e., raised strip structures. The guide strips 14 can be wedge-shaped, trapezoidal, or arc-shaped to facilitate guidance during insertion. The inner wall of the insertion groove 23 is provided with guide grooves 24 corresponding to the positions of the guide strips 14. The shape of the guide grooves 24 matches the guide strips 14 to ensure a unique insertion direction.

[0031] The asymmetrical distribution of the guide bar 14 and guide groove 24 ensures that the plug can only be inserted into the socket in one correct direction, avoiding reverse insertion or misalignment. During insertion, the guide bar 14 slides into the guide groove 24, automatically correcting the plug position. Even with slight initial misalignment, it guides the plug to accurate alignment, making it suitable for confined spaces or scenarios with limited visibility. The cooperation between the guide bar 14 and the groove reduces direct friction between the connector ring 13 and the connector groove 23, preventing wear and tear from prolonged use.

[0032] Reference Figures 2 to 4 In one embodiment of this utility model, a shielding member 5 is provided between the inner wall of the plug housing 1 and the first PCB board 11, and between the inner wall of the socket housing 2 and the second PCB board 21. When the plug housing 1 and the socket housing 2 are connected, the two shielding members 5 are connected to each other and cover the first PCB board 11 and the second PCB board 21.

[0033] Understandably, the shield 5 is made of metal and is located between the inner wall of the plug housing 1 and the first PCB board 11. Similarly, the shield 5 is also provided between the inner wall of the socket housing 2 and the second PCB board 21 to ensure that the PCB board is completely covered.

[0034] When the plug and socket are connected, the shields 5 at both ends are connected to each other through the metal contact of the plug ring 13 and the plug slot 23, ultimately forming a fully enclosed metal shielding layer that wraps the two PCB boards inside, preventing electromagnetic leakage or external interference.

[0035] This utility model's technical solution employs a spring pin 12 structure, requiring only a slight elastic force to overcome during insertion and removal, maintaining low insertion and removal force even with multiple cores, and the rebound force assists in unlocking; a mechanical locking mechanism controlled by a button achieves stable connection, allowing for quick unlocking with a press, preventing vibration-induced detachment; the guide strip 14 / slot design of the insertion ring 13 and slot allows for non-precise alignment insertion while preventing incorrect insertion; the housing has an internal shielding component 5 that completely encloses the PCB, forming a full metal shielding layer after insertion, providing excellent anti-electromagnetic interference performance; the spring pin 12 vertically connects to the PCB, saving space and suitable for compact layouts with multiple cores.

[0036] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" 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, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0037] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A fully shielded board-to-board button electrical connector, characterized in that, include: The plug housing has a first mounting cavity inside, the first mounting cavity has a first open end, a first PCB board is fixed inside the first mounting cavity parallel to the plane where the first open end is located, a plurality of spring pins are vertically connected to the first PCB board, and a plug ring is protruding from part of the edge of the first open end. The socket housing has a second mounting cavity inside, the second mounting cavity has a second open end, a second PCB board is fixed inside the second mounting cavity parallel to the plane where the second open end is located, the surface of the second PCB board is provided with a plurality of connecting contact points corresponding to the spring pin, and a plug groove is recessed on part of the edge of the second open end. The plug housing's insertion ring can be embedded in the socket housing's insertion slot so that the spring pin abuts against the connection point.

2. The fully shielded board-to-board button electrical connector according to claim 1, characterized in that, A portion of the surface of the plug housing protrudes to form a button cavity. A pressing element is disposed within the button cavity, and a portion of the pressing element is exposed outside the button cavity for pressing. A spring is disposed between the pressing element and the bottom of the button cavity. The pressing element has a locking arm that extends out of the button cavity, and a first engaging portion protrudes from the end of the locking arm. A portion of the surface of the socket housing protrudes and forms a locking opening with the plug groove. A portion of the edge of the locking opening is bent to form a second engaging portion. The locking arm can extend into the locking opening and engage the first engaging portion with the second engaging portion. Pressing the pressing element can disengage the first engaging portion from the second engaging portion.

3. The fully shielded board-to-board button electrical connector according to claim 2, characterized in that, The surface of the plug ring is provided with a plurality of guide strips in a circumferential manner, and the inner wall surface of the plug groove is provided with a guide groove corresponding to the guide strips.

4. The fully shielded board-to-board button electrical connector according to claim 3, characterized in that, A shielding element is provided between the inner wall of the plug housing and the first PCB board, and between the inner wall of the socket housing and the second PCB board. When the plug housing and the socket housing are connected, the two shielding elements are connected to each other and cover the first PCB board and the second PCB board.

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