CN211236197U

CN211236197U - Electric connector fault detection system

Info

Publication number: CN211236197U
Application number: CN201922219971.6U
Authority: CN
Inventors: 吕浙波
Original assignee: Hunan Licheng Rail Transit Technology Co ltd
Current assignee: Hunan Licheng Rail Transit Technology Co ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-08-11
Anticipated expiration: 2029-12-11

Abstract

The utility model discloses an electric connector fault detection system, including controlling means and electric connector, electric connector includes plug and socket, is used for on the socket to detain the department with plug complex extrusion and is equipped with the pressure measurement device that is used for carrying out the detection to the extrusion force, controlling means and pressure measurement device be connected, in order to carry out corresponding action according to the pressure value that detects. Use the utility model provides an electric connector fault detection system, detain the department with plug complex extrusion on electric connector's socket and set up pressure detection device, to the pressure of detaining the department is extruded to plug and socket detects, controlling means carries out corresponding action according to the pressure value that pressure detection device detected, from this with the pressure value according to pressure detection device judges the connection status of plug and socket, to the equipment that uses a plurality of connectors, can accurate positioning investigation when the connector goes wrong, shorten troubleshooting time.

Description

Electric connector fault detection system

Technical Field

The utility model relates to an electronic component field, more specifically say, relate to an electric connector fault detection system.

Background

The connector is widely applied to electronic equipment such as transportation, communication, network, IT, medical treatment, household appliances and the like, and the connector is not a main role on the equipment, but is an important role. The IC is much more likely to be the heart on the device, and the connectors and cables are the hands and feet of the device, which are of exceptional importance for the full functioning of the device. The connectors are often replaced when they reach their useful life or are damaged. Some connectors may often have a longer service life than the time given by the factory. The early replacement of the connector increases the cost of the product and is troublesome to maintain; sometimes, the equipment fails due to connector problems, and troubleshooting the failure problem point is time-consuming and labor-consuming. Connector failures are generally two-fold: 1. the connector and the plug are loose in connection and not compact in buckling when used for a long time. 2. The metal contact points inside the connector are oxidized and corroded, and the contact resistance is increased.

SUMMERY OF THE UTILITY MODEL

In view of this, an object of the present invention is to provide an electrical connector fault detection system to solve the problem that the existing connector cannot detect the buckling state of the plug and the socket.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides an electric connector fault detection system, includes controlling means and electric connector, electric connector includes plug and socket, be used for on the socket with the department is detained in plug complex extrusion is equipped with the pressure measurement device that is used for detecting the extrusion force, controlling means with pressure measurement device is connected, carries out corresponding action in order to carry out according to the pressure value that detects.

Preferably, the pressure detection device is embodied as a strain gauge type pressure sensor.

Preferably, the control device is used for triggering the alarm device to alarm when the detected pressure value is not in the threshold range.

Preferably, the plug is provided with a first plug pin and a second plug pin short-circuited with the first plug pin, the circuit board on which the socket is located is provided with a first socket pin and a second socket pin, which are respectively corresponding to the first plug pin and the second plug pin, the first plug pin, the second plug pin, the first socket pin and the second socket pin form a contact resistor, the circuit board is provided with an external current source circuit, one end of which is connected with the first socket pin, for providing a preset pin current value for the contact resistor, the second socket pin is grounded, and the plug further comprises a voltage detection device, one end of which is connected with the control device, and the other end of which is connected with the contact resistor in parallel, for detecting the voltage of the contact resistor.

Preferably, the external current source circuit further includes a protection resistor connected to the first socket pin.

Preferably, the voltage detection device is embodied as a voltmeter.

Preferably, the control device is a central processing unit.

The utility model provides an electric connector fault detection system, including controlling means and electric connector, electric connector includes plug and socket, is used for on the socket to detain the department with plug complex extrusion and is equipped with the pressure measurement device that is used for carrying out the detection to the extrusion force, controlling means and pressure measurement device be connected, in order to carry out corresponding action according to the pressure value that detects.

Use the utility model provides an electric connector fault detection system, detain the department with plug complex extrusion on electric connector's socket and set up pressure detection device, to the pressure of detaining the department is extruded to plug and socket detects, controlling means carries out corresponding action according to the pressure value that pressure detection device detected, from this with the pressure value according to pressure detection device judges the connection status of plug and socket, to the equipment that uses a plurality of connectors, can accurate positioning investigation when the connector goes wrong, shorten troubleshooting time.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an electrical connector fault detection system according to an embodiment of the present invention;

fig. 2 is a schematic view of an installation structure of a pressure detection device according to an embodiment of the present invention;

fig. 3 is a circuit diagram of a detection circuit of a contact resistor according to an embodiment of the present invention.

The drawings are numbered as follows:

the connector comprises a connector 1, a control device 2, a protection resistor 3, a plug 11, a socket 12, a first plug pin 13, a second plug pin 14, a second socket pin 15, a first socket pin 16 and a pressure detection device 4.

Detailed Description

The embodiment of the utility model discloses electric connector fault detection system to solve the problem that current connector can't withhold the state to plug and socket and carry out the detection.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, fig. 1 is a schematic structural diagram of an electrical connector fault detection system according to an embodiment of the present invention; fig. 2 is a schematic view of an installation structure of a pressure detection device provided by an embodiment of the present invention.

In a specific implementation manner, the utility model provides an electric connector 1 fault detection system, including controlling means 2 and electric connector 1, electric connector 1 includes plug 11 and socket 12, is used for on the socket 12 to detain the department with plug 11 complex extrusion and is equipped with the pressure measurement device 4 that is used for carrying out the detection to the extrusion force, and controlling means 2 is connected with pressure measurement device 4, carries out corresponding action in order to carry out according to the pressure value that detects.

The control device 2 may be a device with a control processing function, such as a microprocessor or a microcontroller, in an embodiment, the control device 2 is a central processing unit, and may also be another chip with a control function. The electrical connector 1 and the control device 2 are connected by a communication line. The electric connector 1 comprises a plug 11 and a socket 12 matched with the plug, a pressure detection device 4 is arranged at the extrusion buckle of the socket 12 so as to detect the extrusion force when the socket 12 is matched with the plug 11, and the pressure detection device 4 can be specifically a pressure transformer type pressure sensor which is small and thin and is convenient to install on the socket 12. The pressure detection device 4 and the control device 2 can also be connected through a communication line, the pressure detection device 4 transmits signals to the control device 2, and the control device 2 performs ADC (analog to digital converter) conversion on the signals into data quantity for processing. Wherein controlling means 2 can be equipped with display and alarm device, shows the pressure value of pressure measurement device 4 through the display to the threshold value scope of preset pressure value is judged to the state of connector 1, and controlling means 2 is used for triggering alarm device when the pressure value that detects is not in the threshold value scope and reports to the police.

In one embodiment, the warning device is embodied as a display lamp. If the detected pressure value is within the first preset range, the connector 1 is in a loose state, and the display lamp is controlled to display yellow; when the detected pressure value is within a second preset range, the current connector 1 is in a fastening state, and the display lamp displays green; when the detected pressure value is within the third preset range, the current connector 1 is in a release state, and the display lamp displays red.

Use the utility model provides a 1 fault detection system of electric connector, detain the department with 11 complex extrusion of plug on electric connector 1's socket 12 and set up pressure detection device 4, to the pressure of detaining the department is detected in the extrusion of plug 11 and socket 12, controlling means 2 carries out corresponding action according to the pressure value that pressure detection device 4 detected, from this with the pressure value according to pressure detection device 4 judges plug 11 and socket 12's connection state, to the equipment that uses a plurality of connectors, can accurate positioning investigation when connector 1 goes wrong, shorten troubleshooting time.

As shown in fig. 3, fig. 3 is a circuit diagram of detecting a contact resistance according to an embodiment of the present invention. On the basis of the above embodiments, the plug 11 is provided with a first plug pin 13 and a second plug pin 14 short-circuited therewith, the first plug pin 13 and the second plug pin 14 can be short-circuited through a conducting wire, the circuit board on which the socket 12 is located is provided with a first socket pin 16 and a second socket pin 15 for respectively corresponding to the first plug pin 13 and the second plug pin 14, the first plug pin 13, the second plug pin 14, the first socket pin 16 and the second socket pin 15 form a contact resistor, when the plug 11 is mated with the socket 12, the first plug pin 13 and the first socket pin 16 are correspondingly arranged, the second plug pin 14 and the second socket pin 15 are correspondingly arranged, the circuit board is provided with an external current source circuit with one end connected with the first socket pin 16 for providing a preset pin current value for the contact resistor, the preset pin current value is a maximum pin current value I when the connector 1 is in operation, in order to protect the circuit, the external current source circuit further includes a protection resistor 3, in fig. 3, R is the protection resistor, GND is ground, I is the current of the external current source circuit, and VCC is the power input. The protection resistor 3 is arranged on the external current source circuit and connected with the first socket pin 16 to prevent the external current source circuit from being short-circuited. The second socket pin 15 is grounded, and includes a voltage detection device having one end connected to the control device 2 and the other end connected in parallel to the contact resistor to detect a voltage V0 of the contact resistor. Because the circular telegram conductor is oxidation corrosion easily in the air, and is directly proportional with the electric current size, simulate the pin contact of oxidation corrosion easily through contact resistance simulation, simulate the contact resistance change of other pins departments to judge the life of connector 1, the steady operation of the equipment of being convenient for reduces the fault rate of equipment, improves the reliability of equipment.

The voltage detection device is used for detecting the voltage value of the contact resistor on the external current source circuit, and the contact resistance value R0 can be calculated to be V0/I by measuring the voltage value V0 of the contact resistor because the current value I of the external current source circuit is constant.

The control device 2 calculates the resistance value of the contact resistor according to the voltage value of the voltage detection device, compares the detected resistance value with a preset resistance value, and performs early warning according to the comparison result. The system can detect and early warn the working state of the electric connector 1, so that the electric connector 1 can be accurately positioned when equipment fails, and the fault removal time is shortened.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The electric connector fault detection system is characterized by comprising a control device and an electric connector, wherein the electric connector comprises a plug and a socket, a pressure detection device used for detecting extrusion force is arranged at the extrusion buckling position matched with the plug on the socket, and the control device is connected with the pressure detection device and performs corresponding action according to the detected pressure value.

2. Electrical connector fault detection system according to claim 1, characterized in that the pressure detection means is in particular a strain gauge pressure sensor.

3. The electrical connector fault detection system of claim 2, wherein the control means is configured to trigger an alarm means alarm when the detected pressure value is not within a threshold range.

4. Electrical connector fault detection system according to any of claims 1-3, the plug is provided with a first plug pin and a second plug pin which is in short circuit with the first plug pin, the circuit board on which the socket is arranged is provided with a first socket pin and a second socket pin which are respectively arranged corresponding to the first plug pin and the second plug pin, the first plug pin, the second plug pin, the first socket pin and the second socket pin form a contact resistance, an external current source circuit with one end connected with the first socket pin is arranged on the circuit board and used for providing a preset pin current value for the contact resistor, the second socket pin is grounded, and the voltage detection device is connected with the control device at one end and connected with the contact resistor at the other end in parallel so as to detect the voltage of the contact resistor.

5. The electrical connector fault detection system of claim 4, wherein the external current source circuit further comprises a protection resistor connected to the first socket pin.

6. Electrical connector fault detection system according to claim 5, characterized in that said voltage detection means are embodied as a voltmeter.

7. Electrical connector fault detection system according to claim 6, characterized in that the control means is embodied as a central processing unit.