Socket with impedance matching and electromagnetic interference preventing functions for separating and falling-off connector

Abstract

The utility model provides a socket for a separating and falling-off connector, and relates to a socket for a separating and falling-off connector with impedance matching and anti-electromagnetic interference functions, and the design of the impedance matching and anti-electromagnetic interference functions can reduce the risk of signal distortion or loss introduced after the separating and falling-off socket falls off. The reliability of the separating and dropping connector socket used for a differential signal system is improved. A socket with impedance matching and electromagnetic interference preventing functions for a separating and falling-off connector comprises an ejection assembly, an insulation assembly, a printed board, a socket shell and a locking mechanism, the ejection assembly, the insulation assembly and the printed board are fixed in the socket shell, a travel switch is arranged in the insulation assembly, a travel switch button pops up when the ejection assembly pops up, and the locking mechanism is arranged in the socket shell. When the ejection assembly is compressed, the travel switch button is pressed, the travel switch contact is disconnected, and the travel switch is connected with the printed board to control on-off of a circuit on the printed board.

Description

Technical Field

[0001] The utility model relates to a socket for a detachable connector, in particular to a socket for a detachable connector with impedance matching and electromagnetic interference prevention functions. Background Art

[0002] like Figure 1 The present invention relates to an existing detachable connector socket, which is mainly used in the electrical interface part of a hanging device such as an unmanned aerial vehicle. To facilitate the automatic separation of the plug and the socket after the connector is unlocked, the socket mating end face is designed with an ejection mechanism (10) for ejecting the plug along the axis of the connector after unlocking. After separation, the socket continues to fly with the hanging object. When the signal type used inside the hanging object is a differential signal, the socket exists as a terminal and is exposed to the atmospheric environment. Since the socket insulator (20) is not equipped with a switch or an anti-electromagnetic interference circuit, the socket does not have an anti-electromagnetic interference function after separation, so that the hanging object signal is at a greater risk of being lost or distorted due to interference from external electromagnetic signals, making the hanging object very easy to lose control, affecting the realization of its application purpose. In addition, since the socket is not designed with an impedance matching function after separation, signal loss will also occur, thereby affecting the realization of the application purpose of the hanging object. Therefore, it is very necessary to introduce impedance matching and anti-electromagnetic interference functions after separation into the detachable connector socket. Utility Model Content

[0003] The technical problem solved by the utility model is: the utility model relates to a socket for a detachable connector, and relates to a socket for a detachable connector with impedance matching and anti-electromagnetic interference functions. The design of the impedance matching and anti-electromagnetic interference functions can reduce the risk of signal distortion or loss introduced after the detachable connector is separated, and improve the reliability of the detachable connector socket for a differential signal system.

[0004] The technical solution of the utility model is:

[0005] A socket for a detachable connector with impedance matching and anti-electromagnetic interference functions, characterized in that it includes five parts: an ejection component, an insulating component, a printed board, a socket housing, and a locking mechanism. The ejection component, the insulating component, and the printed board are fixed in the socket housing. A travel switch is arranged in the insulating component. When the ejection component is ejected, the travel switch button is ejected, and the travel switch contacts are in contact. When the ejection component is compressed, the travel switch button is compressed, and the travel switch contacts are disconnected. The travel switch is connected to the printed board to control the on and off of the circuit on the printed board.

[0006] The ejection assembly is provided with an upper plug hole insulator (3), a lower plug hole insulator (4), a plug hole (7), a locking tube (6), and a locking mechanism (5); the upper plug hole insulator (3) and the lower plug hole insulator (4) are buckled into a whole by riveting the locking tube; the plug hole (7) is buckled in a circular hole formed by the upper plug hole insulator (3) and the lower plug hole insulator (4); the upper plug hole insulator (3) and the lower plug hole insulator (4) are provided with a hole matched with a guide column (15); and a boss is provided in the hole matched with the guide column (15) of the upper plug hole insulator (3).

[0007] The jack (7) is a reed-type structure.

[0008] An upper pin insulator (13), a lower pin insulator (8), a differential signal contact pair (14), and a travel switch (1) are provided in the insulating component. The differential signal contact pair (14) and the travel switch (1) are respectively fixed in corresponding circular holes formed by buckling the upper pin insulator (13) and the lower pin insulator (8). Two or more guide posts (15) distributed unevenly are provided on the insulating component to form a guide mechanism. A screw capillary (81) is pre-fixed at the tail end of the lower pin insulator through an injection molding process to fix the printed circuit board.

[0009] The guide column (15) is a coaxial structure, provided with an inner hole and an outer circle provided with steps.

[0010] The ejection assembly and the insulating assembly are locked as a whole by a nut (10); a spring (16) is provided between the inner hole of the guide column (15) and the ejection assembly; the ejection assembly can move along the axial direction of the socket; the spring (16) can be radially limited by a boss in a hole matched with the upper plug hole insulator (3) and the guide column (15) to prevent displacement.

[0011] A printed circuit board (2) is arranged at the rear end of the socket. A circuit (22) for impedance matching and electromagnetic interference prevention and a through hole (21) matching with a differential signal contact pair (14) are arranged on the printed circuit board (2). The circuit (22) is connected to the travel switch (1) through a wire. The differential signal contact pair (14) is welded to the printed circuit board (2) through the through hole (21) to be connected to the circuit (22). The printed circuit board (2) is fixed in a screw hole preset at the rear end of the insulating component by two or more screws (11).

[0012] The circuit (22) with impedance matching and anti-electromagnetic interference function is provided with a filter circuit. When the connector plug is separated from the socket, the ejection component is ejected, the travel switch (1) button is opened, the travel switch is turned on, and the differential signal contact pair (14) is connected to the filter circuit, realizing the anti-electromagnetic interference protection function of the socket plug-in surface. At the same time, the resistance in the filter circuit matches the impedance of the differential signal contact pair system. When the connector plug is separated from the socket, the ejection component is compressed, the travel switch (1) button is compressed, the switch is disconnected, the differential signal contact pair (14) is disconnected from the circuit (22), and the differential signal contact pair (14) is guaranteed to match the impedance by the insulation component, realizing the reliable transmission of signals between the plug and the socket.

[0013] The socket for a detachable connector with impedance matching and electromagnetic interference protection functions comprises a plurality of differential signal contact pairs (14) channels, each pair of differential signal contact pairs (14) channels corresponding to a travel switch (1), and a group of circuits (22) with impedance matching and electromagnetic interference protection functions.

[0014] The ejection assembly and the insulating assembly are fixed in the socket housing (17) through the threads on the tail screw tube (12).

[0015] The beneficial effects of the utility model compared with the prior art are:

[0016] (1) Avoid the problem that the traditional separation socket is not designed with impedance matching function after separation, resulting in signal loss or distortion, thereby affecting the realization of product functions.

[0017] (2) Avoid the problem that the traditional separation socket is not designed with anti-electromagnetic interference function after separation, which causes signal interference, signal loss or distortion, thereby affecting the realization of product functions.

[0018] (3) A new type of guiding mechanism is proposed, which is suitable for products with non-uniform distribution spectrum and improves the ejection reliability of the ejection component. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the socket structure of an existing separation and fall-off connector;

[0020] Figure 2 It is a schematic diagram of the structure after the socket is separated in one embodiment of the utility model;

[0021] Figure 3 It is a schematic diagram of the structure of the upper plug hole insulator in one embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of the guide column structure in one embodiment of the utility model;

[0023] Figure 5This is a schematic diagram of the structure of the lower pin insulator in one embodiment of the utility model;

[0024] Figure 6 This is a schematic diagram of the circuit board structure in one embodiment of the utility model; DETAILED DESCRIPTION

[0025] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0026] This article proposes a socket for a breakaway connector. The socket is designed with a circuit with impedance matching and anti-electromagnetic interference functions. The design of impedance matching and anti-electromagnetic interference functions can reduce the risk of signal distortion or loss introduced by the breakaway socket, and improve the reliability of the breakaway connector socket for differential signal products.

[0027] The utility model provides a socket for a detachable connector with impedance matching and electromagnetic interference protection functions, comprising an ejection component, an insulating component, a printed board, a socket housing, and a locking mechanism. The ejection component, the insulating component, and the printed board are fixed in the socket housing. A travel switch is arranged in the insulating component. When the ejection component is ejected, a button of the travel switch is ejected, and the contacts of the travel switch are in contact. When the ejection component is compressed, the button of the travel switch is pressed, and the contacts of the travel switch are disconnected. The travel switch is connected to the printed board to control the on-off of the circuit on the printed board.

[0028] The above mentioned travel switches can be adjusted to micro switches according to the application.

[0029] The ejection assembly is provided with an upper plug hole insulator (3), a lower plug hole insulator (4), a plug hole (7), a locking tube (6), and a locking mechanism (5); the upper plug hole insulator (3) and the lower plug hole insulator (4) are buckled into a whole by riveting the locking tube; the plug hole (7) is buckled in a circular hole formed by the upper plug hole insulator (3) and the lower plug hole insulator (4); the upper plug hole insulator (3) and the lower plug hole insulator (4) are provided with a hole matched with a guide column (15); and a boss is provided in the hole matched with the guide column (15) of the upper plug hole insulator (3).

[0030] The jack is a reed type structure.

[0031] An upper pin insulator (13), a lower pin insulator (8), a differential signal contact pair (14), and a travel switch (1) are provided in the insulating component. The differential signal contact pair (14) and the travel switch (1) are respectively fixed in corresponding circular holes formed by buckling the upper pin insulator (13) and the lower pin insulator (8). Two or more guide posts (15) distributed unevenly are provided on the insulating component to form a guide mechanism. One of the guide posts (15) is used as a main guide, and the others are used as auxiliary guides. A screw capillary (81) is pre-fixed at the tail end of the lower pin insulator through an injection molding process to fix the printed circuit board.

[0032] The guide column (15) is a coaxial structure, provided with an inner hole and an outer circle provided with steps.

[0033] The ejection assembly and the insulating assembly are locked as a whole by a nut (10); a spring (16) is provided between the inner hole of the guide column (15) and the ejection assembly; the ejection assembly can move along the axial direction of the socket; the spring (16) can be radially limited by a boss in a hole matched with the upper plug hole insulator (3) and the guide column (15) to prevent displacement.

[0034] A printed circuit board (2) is arranged at the rear end of the socket. A circuit (22) for impedance matching and electromagnetic interference prevention and a through hole (21) matching with a differential signal contact pair (14) are arranged on the printed circuit board (2). The circuit (22) is connected to the travel switch (1) through a wire. The differential signal contact pair (14) is welded to the printed circuit board (2) through the through hole (21) to be connected to the circuit (22). The printed circuit board (2) is fixed in a screw hole preset at the rear end of the insulating component by two or more screws (11).

[0035] Furthermore, the circuit (22) with impedance matching and anti-electromagnetic interference function is provided with a filter circuit. When the connector plug is separated from the socket, the ejection component is ejected, the travel switch (1) button is opened, the travel switch is turned on, and the differential signal contact pair (14) is connected to the filter circuit, thereby realizing the anti-electromagnetic interference protection function of the socket mating surface. At the same time, the resistance in the filter circuit matches the impedance of the differential signal contact pair system. When the connector plug is separated from the socket, the ejection component is compressed, the travel switch (1) button is compressed, the switch is disconnected, and the differential signal contact pair (14) is disconnected from the circuit (22). The differential signal contact pair (14) is guaranteed to match the impedance by the insulating component, thereby realizing reliable transmission of signals between the plug and the socket.

[0036] Furthermore, the socket for the detachable connector with impedance matching and electromagnetic interference protection functions comprises a plurality of differential signal contact pairs (14) channels, each pair of differential signal contact pairs (14) channels corresponding to a travel switch (1), and a group of circuits (22) with impedance matching and electromagnetic interference protection functions.

[0037] Furthermore, the ejection assembly and the insulating assembly are fixed in the socket housing (17) through threads on the tail screw tube (12).

[0038] Working principle:

[0039] When the detachable connector socket is used, the socket is fixed on the equipment mounting plate, the detachable connector plug and the socket are plugged and locked, the ejection component is compressed by the plug, the ejection component contacts the travel switch button until the contact is disconnected, the travel switch (1) is disconnected, the differential signal contact pair of the plug and the socket realizes signal connection through the jack in the ejection component, and the characteristic impedance between the differential signal contact pair (14) is ensured by the insulating component.

[0040] After the connector plug is separated and unlocked from the socket, the ejection assembly is ejected by the spring (16) disposed in the guide column (15), the travel switch (1) contacts are in contact, the travel switch (1) is turned on, and the differential signal contact pair (14) and the filter circuit form a closed loop. The filter circuit filters the electromagnetic interference signal received by the differential signal contact pair in the external environment. At the same time, the resistance in the filter circuit matches the impedance in the differential signal contact pair system, thereby ensuring the reliability of signal transmission.

[0041] The guiding function is realized by two guiding columns, which distinguish the main and auxiliary guiding functions, with one as the main guiding column and the other as the auxiliary guiding column, thereby preventing mutual interference. At the same time, the guiding columns ensure the force balance of the ejection component through reasonable tolerance design, and will not be unbalanced due to uneven distribution of the travel switch (1) and the differential signal contact pair (14). At the same time, the two guiding columns can prevent the ejection component from rotating.

[0042] The contents not described in detail in the utility model specification belong to the known technology in the field.

Claims

1. A socket for a detachable connector with impedance matching and electromagnetic interference protection functions, characterized in that: It includes five parts: an ejection component, an insulating component, a printed circuit board, a socket housing, and a locking mechanism. The ejection component, the insulator component, and the printed circuit board are fixed in the socket housing. A travel switch is arranged in the insulating component. When the ejection component is ejected, the travel switch button is ejected, and the travel switch contacts are in contact. When the ejection component is compressed, the travel switch button is pressed, and the travel switch contacts are disconnected. The travel switch is connected to the printed circuit board to control the on and off of the circuit on the printed circuit board.

2. A socket for a detachable connector with impedance matching and electromagnetic interference protection functions according to claim 1, characterized in that: An upper pin insulator, a lower pin insulator, a differential signal contact pair, and a travel switch are provided in the insulating component. The differential signal contact pair and the travel switch are respectively fixed in corresponding circular holes formed by the buckling of the upper pin insulator and the lower pin insulator. Two or more guide posts with uneven distribution are provided on the insulating component to form a guide mechanism. The guide posts are coaxial structures with an inner hole and a step on the outer circle. The tail end of the lower pin insulator is pre-fixed with a screw tube through an injection molding process to fix the printed circuit board.

3. A socket for a detachable connector with impedance matching and electromagnetic interference protection functions according to claim 1, characterized in that: The ejection assembly and the insulating assembly are locked as a whole by a nut. A spring is provided between the inner hole of the guide column and the ejection assembly. The ejection assembly can move axially along the socket. The spring can be radially limited by the boss in the hole where the upper socket insulator cooperates with the guide column to prevent displacement.

4. A socket for a detachable connector with impedance matching and electromagnetic interference protection functions according to claim 1, characterized in that: A printed circuit board is provided at the tail of the socket, and a circuit for impedance matching and electromagnetic interference protection is provided on the printed circuit board. The circuit is connected to the travel switch through a wire, and the differential signal contact pair is connected to the circuit by welding on the printed circuit board through a through hole. The printed circuit board is fixed in a screw hole preset at the tail end of the insulating component by two or more screws. The circuit with impedance matching and electromagnetic interference protection function is provided with a filtering circuit. When the connector plug is separated from the socket, the ejection component is ejected, the travel switch button is opened, the travel switch is turned on, and the differential contact pair is connected to the filtering circuit, thereby realizing the electromagnetic interference protection function of the socket mating surface. At the same time, the resistance in the filtering circuit matches the impedance of the differential signal contact pair system. When the connector plug is separated from the socket, the ejection component is compressed, the travel switch button is compressed, the travel switch is disconnected, and the differential signal contact pair (14) is disconnected from the circuit (22). The impedance matching between the differential signal contact pairs is ensured by the insulating component, thereby realizing the reliable transmission of signals between the plug and the socket.

5. A socket for a detachable connector with impedance matching and electromagnetic interference protection functions according to claim 1, characterized in that: The socket for a detachable connector with impedance matching and electromagnetic interference protection functions comprises a plurality of differential signal contact pair channels, each pair of differential signal contact pair channels corresponds to a travel switch, and a group of circuits with impedance matching and electromagnetic interference protection functions.

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