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

Abstract

The invention 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 application relates to a socket for a detachable connector, in particular to a socket for a detachable connector with impedance matching and anti-electromagnetic interference functions. BACKGROUND

[0002] As Figure 1 The existing detachable connector socket is mainly applied to a suspension electrical interface part of a drone, in order to facilitate automatic separation of the plug and the socket after the connector is unlocked, an ejection mechanism (10) is designed on the insertion end face of the socket, so that the plug is ejected along the axial direction of the connector after being unlocked. After being separated, the socket continues to fly with the suspension object. When the signal type used in the suspension object is a differential signal, the socket serves as a terminal and is exposed to the atmospheric environment. Since the socket insulator (20) is not provided with a switch and an anti-electromagnetic interference circuit, the socket does not have the anti-electromagnetic interference function after being separated, so that the signal of the suspension object is easily interfered by external electromagnetic signals and is lost or distorted, so that the suspension object is easily out of control, thereby affecting the realization of the application purpose. In addition, since the socket is not provided with an impedance matching function after being separated, the signal is also lost, thereby affecting the realization of the application purpose of the suspension object. Therefore, it is necessary to introduce the impedance matching and anti-electromagnetic interference functions after the separation of the detachable connector socket. SUMMARY

[0003] The technical problem of the application is that the application 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 signal distortion or loss risk introduced after the separation of the detachable socket, and improve the reliability of the detachable connector socket for a differential signal system.

[0004] The technical solution of the application is:

[0005] A socket for a detachable connector with impedance matching and anti-electromagnetic interference functions, characterized by comprising an ejection assembly, an insulating assembly, a printed board, a socket shell and a locking mechanism. The ejection assembly, the insulating assembly and the printed board are fixed in the socket shell. The insulating assembly is provided with a travel switch. When the ejection assembly is ejected, the travel switch button is ejected, and the travel switch contact is contacted. When the ejection assembly is compressed, the travel switch button is pressed, and the travel switch contact is disconnected. The travel switch is connected with the printed board, and controls the on-off circuit on the printed board.

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

[0007] The jack (7) is of a spring leaf type.

[0008] The insulation assembly is provided with an upper pin insulator (13), a lower pin insulator (8), a differential signal contact pair (14), and a travel switch (1). The differential signal contact pair (14) and the travel switch (1) are respectively fixed in the corresponding circular holes formed by the fastening of the upper pin insulator (13) and the lower pin insulator (8). The insulation assembly is provided with two or more than two guide columns (15) which form a guide mechanism and are unevenly distributed. The tail end of the lower pin insulator is pre-fixed with a screw thin pipe (81) through the injection molding process, so as to fix the printed board.

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

[0010] The ejection assembly and the insulation assembly are locked into a whole through a nut (10). The inner hole of the guide column (15) and the ejection assembly are provided with a spring (16). The ejection assembly can move along the axial direction of the socket. The spring (16) can be radially limited through the boss in the hole matched with the guide column (15) of the upper jack insulator (3), so as to prevent displacement.

[0011] The socket tail is provided with a printed board (2). The printed board (2) is provided with a circuit (22) for impedance matching and anti-electromagnetic interference function and a through hole (21) matched with the differential signal contact pair (14). The circuit (22) is connected with the travel switch (1) through a wire. The differential signal contact pair (14) is welded on the printed board (2) through the through hole (21) and is connected with the circuit (22). The printed board (2) is fixed in the screw thin hole pre-set at the tail end of the insulation assembly through two or more than two screws (11).

[0012] The circuit (22) with impedance matching and anti-electromagnetic interference function is provided with a filter circuit, which separates the ejection assembly from the connector plug and socket, the travel switch (1) button is ejected, the travel switch is turned on, the differential signal contact pair (14) is connected with the filter circuit, and the electromagnetic interference protection function of the socket insertion surface is realized. Meanwhile, the resistance in the filter circuit and the impedance matching of the differential signal contact pair system are matched. When the connector plug and socket are separated, the ejection assembly is pressed, the travel switch (1) button is compressed, the travel switch is turned off, the differential signal contact pair (14) is disconnected with the circuit (22), and the impedance matching between the differential signal contact pair (14) is ensured by the insulation assembly, so that the reliable transmission of signals between the plug and the socket is realized.

[0013] The socket of the separated and fallen connector with the impedance matching and anti-electromagnetic interference function comprises a plurality of differential signal contact pair (14) channels, each differential signal contact pair (14) channel corresponds to a travel switch (1), and a set of circuits (22) with impedance matching and anti-electromagnetic interference function.

[0014] The ejection assembly and the insulation assembly are fixed in the socket shell (17) through threads on the tail screw pipe (12).

[0015] Compared with the prior art, the beneficial effects of the present application are as follows:

[0016] (1) The impedance matching function after separation is not designed in the traditional separated and fallen socket, which leads to signal loss or distortion, thereby affecting the realization of product functions.

[0017] (2) The anti-electromagnetic interference function after separation is not designed in the traditional separated and fallen socket, which leads to signal interference, signal loss or distortion, thereby affecting the realization of product functions.

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

[0019] Figure 1 It is a socket structure schematic diagram of the existing separated and fallen connector;

[0020] Figure 2 It is a structure schematic diagram of the socket after separation in an embodiment of the present application;

[0021] Figure 3 It is a structure schematic diagram of the socket after separation in an embodiment of the present application;

[0022] Figure 4 It is a structure schematic diagram of the socket after separation in an embodiment of the present application;

[0023] Figure 5is a schematic diagram of the lower pin insulator structure in an embodiment of the present application;

[0024] Figure 6 is a schematic diagram of the circuit board structure in an embodiment of the present application; DETAILED DESCRIPTION

[0025] The specific embodiments of the present application are described in further detail below in conjunction with the accompanying drawings.

[0026] The present application provides a socket for a disconnecting connector, which is provided with a circuit with impedance matching and anti-electromagnetic interference functions. The impedance matching and anti-electromagnetic interference functions can reduce the risk of signal distortion or loss caused by the socket and improve the reliability of the socket for a disconnecting connector in a differential signal product.

[0027] The socket for a disconnecting connector with impedance matching and anti-electromagnetic interference functions provided by the present application comprises a ejection assembly, an insulator assembly, a printed board, a socket shell and a locking mechanism. The ejection assembly, the insulator assembly and the printed board are fixed in the socket shell. A travel switch is arranged in the insulator assembly. When the ejection assembly is ejected, the travel switch button is ejected and the travel switch contact is contacted. When the ejection assembly is compressed, the travel switch button is pressed and the travel switch contact is disconnected. The travel switch is connected with the printed board to control the on-off of the circuit on the printed board.

[0028] The travel switch can be adjusted as a micro switch according to the application.

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

[0030] The jack is of a spring leaf type structure.

[0031] The insulator assembly is provided with an upper pin insulator (13), a lower pin insulator (8) and a differential signal contact pair (14). The differential signal contact pair (14) and the travel switch (1) are respectively fixed in the corresponding circular holes formed by the buckling of the upper pin insulator (13) and the lower pin insulator (8). The insulator assembly is provided with two or more than two guide columns (15) which are unevenly distributed to form a guide mechanism. One of the guide columns (15) is the main guide and the others are auxiliary guides. The lower pin insulator tail end is pre-fixed with a screw thin tube (81) through an injection molding process to fix the printed board.

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

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

[0034] The tail of the socket is provided with the printed board (2), the printed board (2) is provided with the through hole (21) for impedance matching and anti-electromagnetic interference function circuit (22) matched with the differential signal contact pair (14), the circuit (22) is connected with the travel switch (1) through the wire, the differential signal contact pair (14) is welded on the printed board (2) through the through hole (21) and connected with the circuit (22), the printed board (2) is fixed in the screw fine hole pre-set in the tail end of the insulation assembly through two or more than two screws (11).

[0035] Further, the impedance matching and anti-electromagnetic interference function circuit (22) is provided with the filter circuit, the ejection assembly is ejected when the connector plug is separated from the socket, the travel switch (1) button is popped, the travel switch is turned on, the differential signal contact pair (14) is connected with the filter circuit, the anti-electromagnetic interference protection function of the socket insertion surface is realized, and the resistance in the filter circuit and the impedance matching of the differential signal contact pair system are matched. The ejection assembly is pressed when the connector plug is separated from the socket, the travel switch (1) button is compressed, the switch is turned off, the differential signal contact pair (14) is disconnected with the circuit (22), the impedance matching of the differential signal contact pair (14) is ensured by the insulation assembly, and the reliable transmission of the signal between the plug and the socket is realized.

[0036] Further, the socket for the separated and fallen connector with impedance matching and anti-electromagnetic interference function comprises a plurality of differential signal contact pair (14) channels, each differential signal contact pair (14) channel corresponds to a travel switch (1), and a set of circuits (22) with impedance matching and anti-electromagnetic interference function.

[0037] Further, the ejection assembly and the insulation assembly are fixed in the socket shell (17) through the threads on the tail screw pipe (12).

[0038] Working principle:

[0039] When the disconnecting connector socket is used, the socket is fixed on the equipment mounting plate, the disconnecting connector plug is inserted and locked with the socket, the ejection assembly is compressed by the plug, the ejection assembly 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 insertion hole in the ejection assembly, and the characteristic impedance between the differential signal contact pair (14) is ensured by the insulation assembly.

[0040] After the disconnecting connector plug is inserted and unlocked with the socket, the ejection assembly is ejected by the spring (16) arranged in the guide column (15), the travel switch (1) contact is contacted, the travel switch (1) is turned on, the differential signal contact pair (14) and the filter circuit form a closed loop, the filter circuit can filter the electromagnetic interference signals received by the differential signal contact pair in the external environment, and the resistance in the filter circuit and the impedance in the differential signal contact pair system are matched, thereby ensuring the reliability of signal transmission.

[0041] The guide function is realized by two guide columns, and the main and auxiliary guide functions are distinguished, one of which is the main guide column and the other is the auxiliary guide column, thereby preventing mutual interference. At the same time, the guide column is designed with reasonable tolerance to ensure that the ejection assembly is balanced, and will not be unbalanced due to uneven distribution of the travel switch (1) and the differential signal contact pair (14), and the two guide columns can prevent the ejection assembly from rotating.

[0042] The contents not described in detail in the specification of the application belong to the known technology in the art.

Claims

1. A socket for a detachable connector with impedance matching and electromagnetic interference protection functions, characterized in that: It consists of five parts: ejection assembly, insulation assembly, printed circuit board, socket housing, and locking mechanism. The ejection assembly, insulation assembly, and printed circuit board are fixed inside the socket housing. A limit switch is installed in the insulation assembly. When the ejection assembly is ejected, the limit switch button pops out and the limit switch contacts are in contact. When the ejection assembly is compressed, the limit switch button is pressed and the limit switch contacts are open. The limit switch is connected to the printed circuit board to control the on / off of the circuit on the printed circuit board.

2. A receptacle for a detachable connector with impedance matching and electromagnetic interference protection functions according to claim 1, characterized in that: The insulating assembly includes an upper pin insulator, a lower pin insulator, a differential signal contact pair, and a limit switch. The differential signal contact pair and the limit switch are respectively fixed in the corresponding circular holes formed by the upper pin insulator and the lower pin insulator. The insulating assembly has two or more guide posts that are not uniformly distributed to form a guide mechanism. The guide posts are coaxial and have 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 by injection molding to fix the printed circuit board.

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

4. A receptacle for a detachable connector with impedance matching and electromagnetic interference protection functions according to claim 1, characterized in that: The socket has a printed circuit board at the end, which has circuits for impedance matching and electromagnetic interference protection. The circuits are connected to the limit switch through wires. Differential signal contacts are soldered to the printed circuit board through through holes and connected to the circuit. The printed circuit board is fixed in the screw holes at the end of the insulating component by two or more screws. The circuit with impedance matching and electromagnetic interference protection functions is equipped with a filter circuit. When the connector plug and socket are separated, the ejector component pops out, the limit switch button pops open, the limit switch is turned on, and the differential contact pair is connected to the filter circuit, realizing the electromagnetic interference protection function of the socket mating surface. At the same time, the resistor in the filter circuit matches the impedance of the differential signal contact pair system. When the connector plug and socket are mated, the ejector component is pressed, the limit switch button is compressed, the limit switch is turned off, and the differential signal contact pair (14) is disconnected from the circuit (22). The differential signal contact pair is ensured by the insulation component to achieve impedance matching, realizing reliable signal transmission between the plug and socket.

5. A receptacle for a detachable connector with impedance matching and electromagnetic interference protection functions according to claim 1, characterized in that: This detachable connector socket with impedance matching and electromagnetic interference protection includes multiple differential signal contact pairs, each differential signal contact pair corresponding to a limit switch, and a circuit with impedance matching and electromagnetic interference protection.

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