WO2018113378A1

WO2018113378A1 - Device for detecting plugging state of electrical connector, and receptacle and plug of electrical connector

Info

Publication number: WO2018113378A1
Application number: PCT/CN2017/104686
Authority: WO
Inventors: 吴常军; 李程; 马正
Original assignee: 广州视源电子科技股份有限公司; 广州视睿电子科技有限公司
Priority date: 2016-12-19
Filing date: 2017-09-30
Publication date: 2018-06-28
Also published as: CN206321742U

Abstract

Disclosed are a device for detecting a plugging state of an electrical connector, a receptacle of an electrical connector, and a plug of an electrical connector. The device for detecting a plugging state of an electrical connector comprises a power input port (Vn), a power output port (Vo) electrically connected to an electrical connector, at least one detection terminal (20) used for detecting a ground signal sent by a ground pin (10) of the electrical connector, a ground signal detection circuit (1) used for outputting a control signal according to the ground signal, and a switching circuit (2) used for triggering, according to the control signal, connection of the power input port (Vn) and the power output port (Vo). The device for detecting a plugging state of an electrical connector can detect whether a receptacle of the electrical connector and a plug of the electrical connector are well plugged, and can protect a system circuit of an apparatus provided with the receptacle of the electrical connector, and an apparatus provided with the plug of the electrical connector.

Description

Electrical connector plug state detecting device, electrical connector base and male seat

Technical field

The utility model relates to the technical field of electrical connectors, in particular to an electrical connector insertion state detecting device, an electrical connector female seat and a male seat.

Background technique

An electrical connector is a device used to connect two active devices that can carry current or signals between two active devices, ie, the electrical connector can be between the blocked circuit or the isolated circuit. The function of transmitting current and signal, so that the circuit can work normally.

However, the number of pins of the existing electrical connector is large and fine, so when the electrical connector of the external device is plugged into the electrical connector of the main device, it is difficult for the user to judge the electrical connector of the external device. Whether the pins are in good contact with each pin of the main device's electrical connector, so that when the pins of the external device's electrical connector are in poor contact or the contacts of the main device's electrical connector are incorrect, this When the system powers up the electrical connector of the primary device, it may adversely affect the internal circuitry of the primary device system or external devices. For example, an existing Open Pluggable Specification (OPS) computer has an electrical connector that is connected to the electrical connector of the OPS adapter board. Among them, the OPS adapter board is used to connect the OPS computer with a multimedia device (such as a TV or an all-in-one), that is, the multimedia device can supply power to the OPS computer through the OPS adapter board, and the OPS computer can carry various data. Signals, such as video signals or audio signals, are sent to the multimedia device via the OPS riser board. In the process of plugging the electrical connector of the OPS adapter board with the electrical connector of the OPS computer, because the pins of the existing OPS adapter board are slender and dense, and the OPS computer is turned with OPS. The pins of the electrical connectors that are plugged in are also slender and dense, so it is difficult for the user to determine whether each pin of the electrical connector of the OPS adapter board is electrically connected to the OPS computer during the plugging process. Each pin of the device is plugged into the position, so that when the pin of the electrical connector of the OPS adapter board is in poor contact or the contact with the electrical connector of the OPS computer is incorrect, the multimedia device passes the OPS adapter board at this time. Powering the OPS computer with the system circuitry can damage the OPS adapter board's circuitry and the OPS computer.

Utility model content

In view of the above problems, an object of the present invention is to provide an electrical connector insertion state detecting device, which can detect whether the electrical connector female socket is properly inserted into the electrical connector male seat, and detects that both connectors are connected. When the battery connector and the electrical connector are powered up, the system circuit of the device provided with the electrical connector socket and the device provided with the electrical connector can be protected; It is also an object of the invention to provide an electrical connector base including the electrical connector plug-in state detecting device and an electrical connector male connector matingly coupled to the electrical connector female.

In order to achieve the above object, an aspect of the present invention provides an electrical connector plug-in state detecting device, including a power input port, a power output port for electrically connecting to an electrical connector, and at least one for detecting the power. a detection terminal of a ground signal transmitted by a ground pin of the connector, a ground signal detection circuit for outputting a control signal according to the ground signal, and a triggering of the power input port and the power output port according to the control signal a switching circuit that is connected; a detecting end of the ground signal detecting circuit is connected to the ground signal detecting terminal, an output end of the ground signal detecting circuit is connected to a controlled end of the switch circuit, and an input of the switch circuit The terminal is connected to the power input port, and an output end of the switch circuit is connected to the power output port.

In one aspect, preferably, the ground signal detecting circuit includes a voltage input port, a first N-type MOS transistor, and a first inverter, and a gate of the first N-type MOS transistor is connected to the voltage input port. A source of the first N-type MOS transistor is connected to the detection terminal, and a drain of the first N-type MOS transistor is connected to a controlled end of the switch circuit through the first inverter.

Further, the ground signal detecting circuit further includes a first diode, a positive pole of the first diode is connected to a source of the first N-type MOS transistor, and a negative pole of the first diode is The drains of the first N-type MOS transistors are connected.

On the other hand, preferably, the number of the detection terminals is two, and the two detection terminals are for respectively detecting a ground signal transmitted by a ground pin of a different side of the electrical connector.

Further, the ground signal detecting circuit includes a voltage input port, a second N-type MOS transistor, a third N-type MOS transistor, a fourth N-type MOS transistor, a fifth N-type MOS transistor, and at least one resistor;

a gate of the second N-type MOS transistor is connected to the voltage input port, a source of the second N-type MOS transistor is connected to one of the detection terminals, and a drain of the second N-type MOS transistor is a gate connection of the fourth N-type MOS transistor, the source of the fourth N-type MOS transistor being grounded;

a gate of the third N-type MOS transistor is connected to the voltage input port, a source of the third N-type MOS transistor is connected to another detection terminal, and a drain of the third N-type MOS transistor Connected to the gate of the fifth N-type MOS transistor, the source of the fifth N-type MOS transistor is grounded;

a drain of the fourth N-type MOS transistor is connected to a drain of the fifth N-type MOS transistor, and a drain of the fourth N-type MOS transistor is connected to a drain of the fifth N-type MOS transistor Connected to the voltage input port through the resistor, the controlled end of the switch circuit is connected to the connection between the drain of the fourth N-type MOS transistor and the drain of the fifth N-type MOS transistor and Between the resistors.

Further, the ground signal detecting circuit further includes a second diode and a third diode; a cathode of the second diode is connected to a source of the second N-type MOS transistor, and the second a cathode of the diode is connected to a drain of the second N-type MOS transistor; a cathode of the third diode is connected to a source of the third N-type MOS transistor, and the third diode is The negative electrode is connected to the drain of the third N-type MOS transistor.

Further improving the above technical solution, the switch circuit includes a relay, a first end of the coil of the relay is connected to an output end of the ground signal detecting circuit, and a second end of the coil of the relay is grounded, the relay A common terminal is connected to the power input port, and a normally open contact of the relay is connected to the power output port.

The utility model also provides an electrical connector base for mating connection with an electrical connector male seat, comprising an electrical connector female body and an electrical connector insertion state detecting device as described above; The connector base body has at least one ground pin for ground detection of the detecting terminal and a power input pin, and the power input pin is connected to the power output port.

Further, the number of the grounding pins is at least two, and at least one grounding pin is respectively disposed on two sides of the abutting portion of the electrical connector base body.

The utility model also provides an electrical connector male seat which is matched with the electrical connector base, and comprises at least two grounding pin receiving portions; the two sides of the abutting portion of the electrical connector male seat are respectively provided There is at least one of the ground pin receiving portions; the at least two ground pin receiving portions are in one-to-one correspondence with the at least two ground pins.

The electrical connector plug-in state detecting device provided by the present invention, in the process of connecting the electrical connector socket and the electrical connector male seat, when the ground signal detecting circuit passes the detecting terminal Detecting that the ground pin of the electrical connector mat is in contact with a corresponding ground pin receiving portion of the electrical connector mount (ie, all pins of the electrical connector female are electrically connected to the electrical connector The ground signal detecting circuit outputs a control signal to the switch circuit, so that the switch circuit triggers the power input port and the power output port according to the control signal. Turning on, so that the electrical connector socket electrically connected to the power signal output port can be normally powered on (ie, the electrical connector is plugged on the electrical connector socket) The device in the seat can work normally.) Therefore, the electrical connector insertion state detecting device of the present invention can detect whether the electrical connector female socket is well connected to the electrical connector male seat, and only when detecting that the two connectors are well connected. The device provided with the electrical connector male seat is powered on by the electrical connector female seat, thereby protecting a system circuit of the device provided with the electrical connector female seat and providing the electrical connector Seat equipment.

DRAWINGS

In order to explain the technical solutions of the present invention more clearly, the drawings used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

1 is a schematic structural view of an electrical connector according to an embodiment of the present invention;

2 is a preferred electrical connector insertion state detecting device according to an embodiment of the present invention. Schematic;

FIG. 3 is a schematic structural diagram of another preferred electrical connector insertion state detecting device according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Referring to FIG. 1 , the present invention provides an electrical connector plug-in state detecting device, including a power input port Vn, a power output port Vo for electrically connecting to an electrical connector, and at least one for detecting the electric power. a detection terminal 20 for transmitting a ground signal transmitted by the ground pin 10 of the connector, a ground signal detecting circuit 1 for outputting a control signal according to the ground signal, and a triggering of the power input port Vn according to the control signal and the a switching circuit 2 for turning on the power output port Vo; a detecting end of the ground signal detecting circuit 1 is connected to the ground signal detecting terminal 20, and an output end of the ground signal detecting circuit 1 and the switching circuit 2 are received The control terminal is connected, the input end of the switch circuit 2 is connected to the power input port Vn, and the output end of the switch circuit 2 is connected to the power output port Vo.

In the embodiment of the present invention, when the electrical connector base is inserted into the electrical connector male seat, when the ground signal detecting circuit 1 detects the electrical connection through the detecting terminal 20 When the grounding pin 10 of the female socket is in contact with the corresponding grounding pin receiving portion of the electrical connector male (ie, all the pins of the electrical connector female and the electrical connector male) The ground signal detecting circuit 1 outputs a control signal to the switching circuit 2, so that the switching circuit 2 triggers the power input port Vn and the power output port Vo according to the control signal. Turning on, so that the electrical connector socket electrically connected to the power signal output port can be normally powered on (ie, the electrical connector is plugged on the electrical connector socket) The equipment of the seat can be on the normal Electric work). Therefore, the electrical connector insertion state detecting device of the present invention can detect whether the electrical connector female socket is well connected to the electrical connector male seat, and only when detecting that the two connectors are well connected. The device provided with the electrical connector male seat is powered on by the electrical connector female seat, so that the system circuit of the device provided with the electrical connector female seat can be protected and the electrical connection is provided Equipment for the public seat.

As one of the preferred embodiments of the present invention:

Preferably, referring to FIG. 2, the ground signal detecting circuit 1 includes a voltage input port Un, a first N-type MOS transistor M1, and a first inverter 200. The gate of the first N-type MOS transistor M1 is The voltage input port Un is connected, the source of the first N-type MOS transistor M1 is connected to the detection terminal 20, and the drain of the first N-type MOS transistor M1 is passed through the first inverter 200 and the The controlled end of the switching circuit 2 is connected.

Wherein, when the first ground detecting terminal 20 detects that the ground pin 10 has the ground signal (ie, the detecting terminal 20 detects the ground pin 10 of the electrical connector and the electrical connector The corresponding ground pin receiving portion of the male seat is in contact with the source of the first N-type MOS transistor M1 connected to the detecting terminal 20, and the drain of the first N-type MOS transistor M1 is low-powered. And a low level of the drain output of the first N-type MOS transistor M1 passes through the first inverter 200 to become a high level, so that the control terminal of the switching circuit 2 is at a high level. The switch circuit 2 is caused to trigger the conduction between the power input port Vn and the power output port Vo, so that the electrical connector electrically connected to the power signal output port can be normally powered on (ie, The external device plugged into the electrical connector can be powered up normally).

Further, referring to FIG. 2, the ground signal detecting circuit 1 further includes a first diode D1, and a positive pole of the first diode D1 is connected to a source of the first N-type MOS transistor M1. The cathode of the first diode D1 is connected to the drain of the first N-type MOS transistor M1. The first diode D1 can prevent reverse breakdown of the first N-type MOS transistor M1.

As another preferred embodiment of the present invention:

Preferably, referring to FIG. 3, the number of the detecting terminals 20 is two, and the two detecting terminals 20 are used to respectively detect ground signals sent by the ground pins 10 on different sides of the electrical connector. In general, existing electrical connectors (eg, 80-pin JAE connectors) would have multiple ground pins 10, thus by having the two detection terminals 20 used to detect differences in the electrical connectors, respectively a grounding signal transmitted by the grounding pin 10 of the side (for example, two grounding pins 10 respectively adjacent to the two ends of the electrical connector socket), such that when the two detecting terminals 20 detect the grounding signal, indicating One of the ground pins 10 of the electrical connector socket and a corresponding one of the ground pin receptacles of the electrical connector receptacle are plugged into the position, and the other ground pin 10 of the electrical connector and the electrical connector The corresponding other ground pin receiving portion of the male seat is plugged into the position, indicating that all the pins of the electrical connector female are properly plugged with all the pins of the electrical connector male.

Further, referring to FIG. 3, the ground signal detecting circuit 1 includes a voltage input port Un, a second N-type MOS transistor M2, a third N-type MOS transistor M3, a fourth N-type MOS transistor M4, and a fifth N-type MOS. a tube M5 and at least one resistor R;

The gate of the second N-type MOS transistor M2 is connected to the voltage input port Un, the source of the second N-type MOS transistor M2 is connected to one of the detection terminals 20, and the second N-type MOS transistor M2 a drain is connected to a gate of the fourth N-type MOS transistor M4, and a source of the fourth N-type MOS transistor M4 is grounded;

a gate of the third N-type MOS transistor M3 is connected to the voltage input port Un, and a source of the third N-type MOS transistor M3 is connected to another detection terminal 20, the third N-type MOS a drain of the transistor M3 is connected to a gate of the fifth N-type MOS transistor M5, and a source of the fifth N-type MOS transistor M5 is grounded;

The drain of the fourth N-type MOS transistor M4 is connected to the drain of the fifth N-type MOS transistor M5, the drain of the fourth N-type MOS transistor M4 and the fifth N-type MOS transistor M5 a connection of the drain is connected to the voltage input port Un through the resistor R, and a controlled end of the switch circuit 2 is connected to a drain of the fourth N-type MOS transistor M4 and the fifth N-type MOS The junction of the drain of the tube M5 and the resistor R.

Wherein, when one of the detecting terminals 20 detects that the first ground pin 10 has a ground signal, the source of the second N-type MOS transistor M2 connected to the detecting terminal 20 is grounded, and the second The drain of the N-type MOS transistor M2 outputs a low level, at which time the fourth N-type MOS transistor M4 is not turned on; similarly, when the other of the detecting terminals 20 detects the presence of another of the ground pins 10 When the ground signal is applied, the fifth N-type MOS transistor M5 is not turned on. Therefore, when one of the ground pins 10 of the electrical connector socket and the corresponding ground pin receiving portion of the electrical connector receptacle are plugged into the position, and when the other ground pin 10 of the electrical connector When the other ground pin receiving portion corresponding to the electrical connector receptacle is plugged into the position (ie, indicating that all pins of the electrical connector female are inserted with all the pins of the electrical connector male The fourth N-type MOS transistor M4 and the fifth N-type MOS transistor M5 are both non-conducting, and the voltage input terminal passes the resistance R to the controlled end of the switch circuit 2 Outputting a high level, so that the switch circuit 2 triggers the conduction of the power input port Vn and the power output port Vo, so that the electrical connector electrically connected to the power output port Vo can be powered on normally. The work (ie, the device provided with the electrical connector male seat plugged on the electrical connector base can be powered up normally).

Further, referring to FIG. 3, the ground signal detecting circuit 1 further includes a second diode D2 and a third diode D3; a positive pole of the second diode D2 and the second N-type MOS transistor a source of M2 is connected, a cathode of the second diode D2 is connected to a drain of the second N-type MOS transistor M2; a cathode of the third diode D3 is connected to the third N-type MOS transistor The source of M3 is connected, and the cathode of the third diode D3 is connected to the drain of the third N-type MOS transistor M3. The second diode D2 can prevent reverse breakdown of the second N-type MOS transistor M2, and the third diode D3 can prevent reverse breakdown of the third N-type MOS transistor M3.

For further improvement of the above technical solution, referring to FIG. 1 and FIG. 2, the switch circuit 2 includes a relay 100, and a first end of the coil of the relay 100 is connected to an output end of the ground signal detecting circuit 1 The second end of the coil of the relay 100 is grounded, the common terminal of the relay 100 is connected to the power input port Vn, and the normally open contact of the relay 100 is connected to the power output port Vo. Wherein, when the output end of the ground signal detecting circuit 1 outputs a high level control signal, the working circuit of the relay 100 is closed, thereby causing the power input port Vn and the power source to be input. The out port Vo is turned on.

It should be noted that the ground signal detecting circuit 1 may also be other types of circuits, such as a NAND gate logic circuit or a microcontroller that can output a high level signal according to the ground signal. Reference is made to the prior art and is not specifically limited herein.

In addition, the switching circuit 2 can also be other types of switching circuits 2, such as a switching circuit 2 composed of a MOS tube or a switching circuit 2 composed of a triode, etc., which can refer to the prior art and do not do here. Specifically limited.

The utility model also provides an electrical connector base and an electrical connector male seat coupled with the electrical connector base;

Referring to FIG. 3, the electrical connector female base includes an electrical connector female body 300 and the electrical connector insertion state detecting device as described above, the electrical connector female body 300 having at least one supply. The ground pin 10 and the power input pin for detecting the grounding of the detecting terminal 20 are connected to the power output port Vo.

In the embodiment of the present invention, by applying the above-mentioned electrical connector to plug the state detecting device, it is possible to detect whether the electrical connector socket is well inserted into the electrical connector male seat, and two are detected. The device having the electrical connector male seat is powered on by the electrical connector female seat when the plug is good, so that the system circuit of the device provided with the electrical connector female base can be protected and provided The device of the electrical connector male seat.

Here, a preferred embodiment of the above embodiment is provided. The number of the ground pins 10 is at least two, and at least one ground pin is respectively disposed on two sides of the abutting portion of the electrical connector base body 300. The electrical connector male seat includes at least two grounding pin receiving portions; at least one of the grounding pin receiving portions is respectively disposed at two sides of the abutting portion of the electrical connector male seat; the at least two The ground pin receiving portion is in one-to-one correspondence with the at least two ground pins 10. Wherein the electrical connector insertion state detecting device detects that the grounding pins 10 on both sides of the abutting portion of the electrical connector female body 300 are in abutment with the electrical connector male abutting portion When the ground pin accommodating portions are connected one by one, it indicates The electrical connector mat is normally plugged into the electrical connector male seat, and the electrical connector plug-in state detecting device energizes the electrical connector female socket.

The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, and any person skilled in the art can easily think of changes within the technical scope disclosed by the present invention. Or replacement should be covered by the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

An electrical connector plug-in state detecting device, comprising: a power input port, a power output port for electrically connecting to the electrical connector, and at least one ground for transmitting the ground pin for detecting the electrical connector a detection terminal of the signal, a ground signal detection circuit for outputting a control signal according to the ground signal, and a switch circuit for triggering conduction of the power input port and the power output port according to the control signal;

a detection end of the ground signal detecting circuit is connected to the ground signal detecting terminal, an output end of the ground signal detecting circuit is connected to a controlled end of the switch circuit, an input end of the switch circuit and the power input The port is connected, and an output end of the switch circuit is connected to the power output port.
The electrical connector plug-in state detecting device according to claim 1, wherein the ground signal detecting circuit comprises a voltage input port, a first N-type MOS transistor, and a first inverter, the first N-type a gate of the MOS transistor is connected to the voltage input port, a source of the first N-type MOS transistor is connected to the detection terminal, and a drain of the first N-type MOS transistor passes through the first inverter Connected to the controlled end of the switching circuit.
The electrical connector plug-in state detecting device according to claim 2, wherein the ground signal detecting circuit further comprises a first diode, a positive pole of the first diode and the first N-type A source of the MOS transistor is connected, and a cathode of the first diode is connected to a drain of the first N-type MOS transistor.
The electrical connector insertion state detecting device according to claim 1, wherein the number of the detecting terminals is two, and the two detecting terminals are used to respectively detect different sides of the electrical connector Ground signal sent by the ground pin.
The electrical connector plug-in state detecting device according to claim 4, wherein the ground signal detecting circuit comprises a voltage input port, a second N-type MOS transistor, a third N-type MOS transistor, and a fourth N-type MOS. a tube, a fifth N-type MOS transistor, and at least one resistor;

a gate of the second N-type MOS transistor is connected to the voltage input port, a source of the second N-type MOS transistor is connected to one of the detection terminals, and a drain of the second N-type MOS transistor is a gate connection of the fourth N-type MOS transistor, the source of the fourth N-type MOS transistor being grounded;

a gate of the third N-type MOS transistor is connected to the voltage input port, a source of the third N-type MOS transistor is connected to another detection terminal, and a drain of the third N-type MOS transistor Connected to the gate of the fifth N-type MOS transistor, the source of the fifth N-type MOS transistor is grounded;

a drain of the fourth N-type MOS transistor is connected to a drain of the fifth N-type MOS transistor, and a drain of the fourth N-type MOS transistor is connected to a drain of the fifth N-type MOS transistor Connected to the voltage input port through the resistor, the controlled end of the switch circuit is connected to the connection between the drain of the fourth N-type MOS transistor and the drain of the fifth N-type MOS transistor and Between the resistors.
The electrical connector plug-in state detecting device according to claim 5, wherein the ground signal detecting circuit further comprises a second diode and a third diode; and a positive pole of the second diode a source of the second N-type MOS transistor is connected, a cathode of the second diode is connected to a drain of the second N-type MOS transistor; a cathode of the third diode is opposite to the third A source of the N-type MOS transistor is connected, and a cathode of the third diode is connected to a drain of the third N-type MOS transistor.
The electrical connector plug-in state detecting device according to any one of claims 1 to 6, wherein the switch circuit comprises a relay, a first end of the coil of the relay and the ground signal detecting circuit The output terminal is connected, the second end of the coil of the relay is grounded, a common terminal of the relay is connected to the power input port, and a normally open contact of the relay is connected to the power output port.
An electrical connector base for mating connection with an electrical connector male seat, characterized in that it comprises an electrical connector female body and the electrical connector plug-in state detection according to any one of claims 1 to 7. The electrical connector base body has at least one ground pin for ground detection of the detecting terminal and a power input pin, and the power input pin is connected to the power output port.
The electrical connector holder according to claim 8, wherein the number of the grounding pins is at least two, and at least one grounding lead is respectively disposed on two sides of the abutting portion of the female connector body. foot.
An electrical connector male seat for mating connection with the electrical connector base of claim 9, comprising at least two grounding pin receiving portions;

At least one of the ground pin receiving portions is respectively disposed on two sides of the abutting portion of the electrical connector male seat; the at least two ground pin receiving portions are in one-to-one correspondence with the at least two ground pins.