Intelligent emergency power connector and detection method thereof

Abstract

The application provides an intelligent emergency power supply connector, which is characterized in that a button of a travel switch is arranged on the inner wall of a first accommodating cavity, so that when a male connector is inserted into a female connector, the button is pressed to turn on the travel switch, thereby realizing detection of the insertion and extraction of the connector; meanwhile, after the travel switch is turned on, the female connector generating heat is subjected to real-time temperature detection, acquisition and storage by a temperature detection circuit, so that the working state of the female connector is acquired, over-temperature is avoided to cause faults or damage of the connector, and the service life of the connector is prolonged. Meanwhile, the application also provides an intelligent emergency power supply connector detection method, which is characterized in that the real-time temperature T of the female connector is acquired and compared with a first preset temperature threshold and a second temperature threshold, and in the case that the temperature is too high or even exceeds the safe use temperature, a warning information is sent or the power supply of the female connector is disconnected, thereby realizing safety protection of the female connector.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of connectors, in particular to an intelligent emergency power connector and a detection method thereof. BACKGROUND

[0002] An emergency power connector is a power connector used to deal with emergency situations. In the event of power outages, power interruptions or other power supply problems, external power supply facilities can provide necessary power support for devices in time through the emergency power connector to ensure normal operation of the devices.

[0003] With the advancement of technology, the design and manufacture of emergency power connectors are also constantly improving. Modern emergency power connectors usually use high-reliability and high-efficiency power conversion technology to ensure stable and reliable power support in emergency situations. At the same time, the emergency power connector also needs to consider safety, ease of use and other factors to ensure that it does not cause damage to personnel and equipment during use.

[0004] With the promotion of ubiquitous Internet of Things and smart power grids, there is an urgent need for comprehensive monitoring and intelligent early warning of emergency power connector data in actual field use.

[0005] The emergency power connectors on the market currently only provide a physical connector for power input and do not have real-time temperature detection and connector insertion and removal status detection. When external power supply facilities are connected, the connector temperature will gradually rise. If the temperature threshold cannot be warned in time, the device will be damaged after exceeding a certain temperature. Therefore, it is urgent to develop a new type of intelligent emergency power connector detection method to solve the problems of temperature detection and early warning, and connector insertion and removal signal detection. SUMMARY

[0006] In view of the fact that the connector in the prior art only provides a physical connector for power input and does not have real-time temperature detection and connector insertion and removal status detection, the present application provides an intelligent emergency power connector and a detection method thereof.

[0007] The utility model provides an intelligent emergency power supply connector, which comprises a female connector, an outer terminal and a female body, the outer terminal is arranged in the female body, one end of the female body is open and extends to the other end, a first accommodating cavity is arranged in the first accommodating cavity, and the outer terminal is arranged in the second accommodating cavity, the second accommodating cavity is arranged with the inner terminal, a male connector is detachably mounted in the female connector, and the male connector comprises a male body, a metal terminal, a first metal sleeve and a second metal sleeve which are sequentially connected and arranged in the male body, one end of the metal terminal is open and extends to the other end, a third accommodating cavity is arranged in the third accommodating cavity, a detection assembly is arranged on the female body, and the detection assembly comprises a temperature detection circuit, a travel switch and an MCU interface, the output end of the temperature detection circuit is electrically connected with the MCU interface through the travel switch, the MCU interface is selectively electrically connected with an external MCU, the temperature detection circuit is used for measuring and collecting temperature data of the female connector, the travel switch is used for controlling the on-off of the temperature detection circuit, the travel switch comprises a button which is controlled to be connected or disconnected by pressing, the button is arranged on the inner wall of the first accommodating cavity, when the male connector is inserted into the female connector, the metal terminal is sleeved on the inner terminal, the outer wall of the inner terminal abuts against the inner wall of the third accommodating cavity, the outer wall of the metal terminal abuts against the inner wall of the second accommodating cavity, the male body is sleeved on the outer terminal, the male body abuts against the inner wall of the first accommodating cavity and presses the button, when the male connector is pulled away from the female connector, the male body is separated from the inner wall of the first accommodating cavity, so that the button is reset.

[0008] Preferably, the temperature detection circuit comprises a first resistor, a capacitor and a thermistor, the thermistor is arranged on the outer wall of the outer terminal, the first end of the first resistor is connected with a working voltage, the second end of the first resistor and the common connection point of the first end of the thermistor are electrically connected with the ADC module of the MCU through the MCU interface, the second end of the thermistor is grounded, and the two ends of the thermistor are connected with the capacitor in parallel.

[0009] Preferably, the female body is further provided with a buzzer and an indicator light, the buzzer and the indicator light are respectively electrically connected with the MCU, the MCU controls the on-off of the buzzer according to the temperature data obtained by the temperature detection circuit, and controls the indicator light to be bright or dark according to the on or off state of the travel switch.

[0010] Preferably, a through hole is arranged in the middle of the side edge of the female seat body, and a micro switch for controlling the on-off of the power supply of the female seat connector is arranged at the through hole; the micro switch is electrically connected with the MCU, and the MCU controls the on-off of the micro switch according to the on or off state of the travel switch.

[0011] Preferably, a plurality of heat conduction sheets are arranged on the side wall of the first accommodating cavity, and a heat dissipation assembly is arranged on the outer side wall of the female seat body, and the heat dissipation assembly comprises a circular ring-shaped heat dissipation substrate arranged on the outer side wall of the female seat body and a plurality of heat dissipation protrusions arranged in a ring shape on the outer side of the circular ring-shaped heat dissipation substrate.

[0012] Preferably, the travel switch further comprises a touch spring assembly connected with the button; the touch spring assembly is arranged in the inner wall of the first accommodating cavity; and the touch spring assembly comprises an insulating base, a shell fixedly connected to the side of the insulating base away from the inner wall of the first accommodating cavity, an installation seat and a spring seat arranged in the shell; the insulating base and the installation seat are hollow structures, the insulating base is filled with heat insulation material, and the installation seat is filled with heat conduction material; the button is movably arranged on the insulating base and connected with the installation seat, and an insulating layer is arranged on the button; a spring groove is arranged on the side of the installation seat away from the button, a plurality of conductive sheets are embedded on the installation seat on both sides of the spring groove; a spring guide column and a plurality of spring sheets corresponding to the conductive sheets are arranged on the spring seat, a spring is sleeved on the spring guide column, the end of the spring away from the spring seat is in abutting contact with the inner wall of the spring groove, the conductive sheets are electrically connected with the temperature detection circuit, and the spring sheets are electrically connected with the MCU interface.

[0013] The application also provides an intelligent emergency power supply connector detection method, which is suitable for the intelligent emergency power supply connector, and comprises the following steps: S1: inserting the male seat connector into the female seat connector to turn on the travel switch, so that the temperature detection circuit starts to detect and collect temperature data; S2: obtaining the current temperature T of the female seat connector based on the temperature data; if the temperature T is greater than or equal to the first preset temperature threshold, it is judged that the temperature of the female seat connector is too high, and a first alarm information is sent; if the temperature T is greater than or equal to the second preset temperature, it is judged that the temperature of the female seat connector exceeds the safe use temperature, the power supply of the female seat connector is turned off, and a second alarm information is sent; wherein the second preset temperature threshold is greater than the first preset temperature threshold; S3: collecting and recording the temperature of the female seat connector at different time points, and then generating a corresponding first time-temperature curve according to the corresponding relationship between the temperature and the time, and judging the heat dissipation state of the female seat connector according to the first time-temperature curve.

[0014] Preferably, the steps of collecting temperature data by the temperature detection circuit are as follows: S11: when the travel switch is turned on, the MCU reads the analog voltage of the ADC module interface and converts the analog voltage into an ADC value; S12: obtaining the current reference voltage V1 of the temperature detection circuit according to the ADC value, and obtaining the current resistance value R of the thermistor based on the reference voltage V1. T The calculation formula of the reference voltage V1 is: ; The resistance value R of the thermistor T The calculation formula is: Wherein, n represents the number of bits of the ADC module, D adc represents the ADC value; V2 represents the operating voltage; R1 represents the resistance value of the first resistor; S13: based on the resistance value R of the thermistor obtained T Calculate and obtain the temperature T of the current female connector. The calculation formula of the temperature T is: ; Wherein, T0 represents the preset reference temperature; R0 represents the thermistor value corresponding to the preset reference temperature T0; B represents the B value coefficient of the thermistor.

[0015] Preferably, the step S3 is specifically as follows: S31: cyclically collect and record the temperature of the female connector at different time points, and generate and update the first time-temperature curve according to the corresponding relationship between the temperature and time; S32: after the female connector runs for a predetermined time, obtain the slope of the first time-temperature curve of the current female connector within the preset time every preset time t; when the slope of the curve exceeds the preset slope threshold, it is judged that there is an abnormality in the heat dissipation state, and an early warning message is issued; wherein, the abnormality in the heat dissipation state includes abnormal heat dissipation state caused by poor environmental heat dissipation and abnormal heat dissipation state caused by poor heat dissipation of the female connector; S33: when the male connector is unplugged from the female connector, the limit switch is disconnected, the temperature data acquisition of the temperature detection circuit stops, and the updating of the first time-temperature curve stops.

[0016] Preferably, the step S3 is specifically: S301: collecting and recording the temperature of the female connector at different time points in a preset period at a standard temperature, and generating a corresponding first time-temperature curve according to the correspondence between the temperature and the time; S302: obtaining the first time-temperature curve generated by the female connector in n working times, and fitting the first time-temperature curve into a standard time-temperature curve; at the same time, obtaining a second time-temperature curve of the female connector in a state lacking heat dissipation; S303: obtaining a third time-temperature curve of the current actual working state of the female connector, and comparing the second time-temperature curve and the third time-temperature curve with the standard time-temperature curve respectively, calculating the difference value D1 of the second time-temperature curve and the standard time-temperature curve, and calculating the difference value D2 of the third time-temperature curve and the standard time-temperature curve; wherein, ; ; wherein, represents the standard time-temperature curve; represents the second time-temperature curve; represents the third time-temperature curve, and N represents the number of temperatures; x i represents the temperature value of the i-th time point; S304: comparing the difference value D1 and the difference value D2 to obtain , and determining whether the heat dissipation state is abnormal according to .

[0017] The steps S2 and S3 further comprise a step S21: determining whether the female connector needs to be subjected to heat dissipation state monitoring processing according to the number of times of the first alarm information or the number of times of the second alarm information generated in a preset number of times of the on-off of the travel switch, and generating a heat dissipation state monitoring signal to the MCU when the female connector needs to be subjected to heat dissipation state monitoring processing, wherein when the number of times of the first alarm information is greater than or equal to 3 or the number of times of the second alarm information is greater than or equal to 1, it is determined that the female connector needs to be subjected to heat dissipation state monitoring processing.

[0018] The application provides an intelligent emergency power connector, wherein the button of the travel switch is arranged on the inner wall of the first accommodating cavity, so that when the male connector is inserted into the female connector, the button is pressed to turn on the travel switch, thereby realizing detection of the insertion and extraction of the connector; at the same time, after the travel switch is turned on, the female connector generating heat is subjected to real-time temperature detection, acquisition and storage by the temperature detection circuit, so as to facilitate the acquisition of the working state of the female connector, avoid over-temperature from causing the connector to malfunction or be damaged, and be beneficial to prolonging the service life of the connector.

[0019] Meanwhile, the application also provides a kind of intelligent emergency power connector detection method, by acquiring the real-time temperature T of female seat connector, and compared with the first preset temperature threshold and second temperature threshold, in the case where temperature is too high or even exceeds safe use temperature, send early warning information or disconnect female seat connector power supply, realize the safety protection of female seat connector;Simultaneously, according to the temperature of female seat connector at different time points collected and recorded, and then according to the corresponding relationship of the temperature and time, corresponding first time-temperature curve is generated, and the heat dissipation state of female seat connector is judged according to the first time-temperature curve, the abnormal state of female seat connector heat dissipation is found in time, and then the problems existing in female seat connector are found, equipment damage caused by temperature is avoided, the safety of connector use is improved and the service life of connector is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The opening structure schematic view of female seat connector provided by the application is shown in the figure.

[0021] Figure 2 The closing structure schematic view of female seat connector provided by the application is shown in the figure.

[0022] Figure 3 The structure schematic view of inner terminal, outer terminal and female seat body provided by the application is shown in the figure.

[0023] Figure 4 The expansion structure schematic view of the heat dissipation assembly provided by the application is shown in the figure.

[0024] Figure 5 The part cross-section structure schematic view of the heat dissipation assembly of female seat body provided by the application is shown in the figure.

[0025] Figure 6 The three-dimensional structure schematic view of male seat connector provided by the application is shown in the figure.

[0026] Figure 7 The cross-section structure schematic view of male seat connector provided by the application is shown in the figure.

[0027] Figure 8 The simple schematic diagram of temperature detection circuit provided by the application is shown in the figure.

[0028] Figure 9 The simple schematic diagram of travel switch cross-section structure provided by the application is shown in the figure.

[0029] Figure 10 The flow chart schematic diagram of a kind of intelligent emergency power connector detection method provided by the application is shown in the figure.

[0030] IDENTIFICATION OF DRAWINGS

[0031] 1, female seat connector; 11, inner terminal; 12, outer terminal; 13, female seat body; 14, first accommodating cavity;

[0032] Second accommodating cavity; 16, screw; 17, heat conduction sheet; 18, circular ring-shaped heat dissipation substrate; 19, heat dissipation protrusion; 20, mesh groove; 2, connector cover body; 21, clamping hook; 22, first lock hole; 3, mounting plate; 31, clamping groove; 32, second lock hole; 33, annular rubber ring; 4, rotating shaft; 5, male connector; 51, male connector body; 52, metal terminal; 53, first metal sleeve; 54, second metal sleeve; 55, third accommodating cavity;

[0033] 6, detection assembly; 61, temperature detection circuit; 62, travel switch; 621, button; 622, insulating base; 623, housing; 624, mounting seat; 625, spring seat; 626, heat insulation material; 627, spring groove; 628, conductive sheet; 629, spring guide column; 630, spring sheet; 631, spring; 632, heat conductive material; 7, through hole. DETAILED DESCRIPTION

[0034] The embodiments described below are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application. EMBODIMENT

[0035] An intelligent emergency power supply connector, comprising: a female connector 1, a male connector 5 detachably mounted on the female connector 1, and a detection assembly 6.

[0036] Specifically, referring to Figure 1 and Figure 3 , the female connector 1 comprises inner terminals 11, outer terminals 12 and a female connector body 13; the outer terminals 12 are arranged in the female connector body 13; the female connector body 13 is open at one end and extends to the opposite end to be provided with a first accommodating cavity 14, and the outer terminals 12 are arranged in the first accommodating cavity 14; and the outer terminals 12 and the female connector body 13 are open at the same end and extend to the opposite end to be provided with a second accommodating cavity 15; the inner terminals 11 are arranged in the second accommodating cavity 15.

[0037] Preferably, in the embodiment, the female seat body 13 is made of a heat-conducting plastic, which comprises the following components: 10-20 parts of carbon nanotubes, 10-20 parts of boron nitride, 60-80 parts of high-density polyethylene, 5-10 parts of basalt particles, 1-2 parts of silane coupling agent and 1-3 parts of flame retardant. By using high-density polyethylene as the base material and carbon nanotubes and boron nitride as the heat-conducting filler, the heat-conducting performance and thermal stability of the plastic are significantly improved. The basalt particles and the silane coupling agent are used to enhance the strength and wear resistance of the plastic, and the flame retardant is added to improve the flame retardant performance of the plastic. The female seat body made of the plastic can make the female seat connector have good heat-conducting performance, thermal stability and strength, and good heat dissipation performance.

[0038] Referring to Figure 1 , Figure 2 and Figure 3 , the female seat connector 1 further comprises a connector cover 2. The female seat body 13 is provided with a square mounting plate 3 at the opening end. One end of the mounting plate 3 is hingedly connected to the connector cover 2, and the other end of the mounting plate 3 is detachably connected to the other end of the connector cover 2. In the embodiment, the mounting plate 3 and the connector cover 2 are rotatably connected through a rotating shaft 4. When the female seat connector 1 is not in use, the connector cover 2 is used to cover the opening of the first accommodating cavity 14 to prevent dust and water from entering the female seat connector 1 and affecting the next use, thereby ensuring the sealing and dustproof performance of the female seat connector 1.

[0039] The connector cover 2 is provided with a clamping hook 21 and a first lock hole 22 at the end away from the rotating shaft 4. The mounting plate 3 is provided with a clamping groove 31 and a second lock hole 32 matched with the clamping hook 21 and the first lock hole 22. The clamping hook 21 and the clamping groove 31 can preliminarily fix the connector cover 2 and the female seat body 13, and the first lock hole 22 and the second lock hole 32 can be penetrated by a lock to fix the connector cover 2 and the female seat body 13.

[0040] The mounting plate 3 is annularly provided with an annular accommodating groove at the side close to the connector cover 2. An annular rubber ring 33 is arranged in the annular accommodating groove, and the center of the annular rubber ring 33 coincides with the center of the opening end of the female seat body 13. The annular rubber ring 33 can effectively prevent foreign matters such as dust and water vapor from entering the female seat connector, thereby protecting the normal operation of the internal elements of the female seat connector 1.

[0041] The female seat body 13 is provided with a screw rod 16 at the end away from the opening of the female seat body 13. The screw rod 16 is connected to the bottom of the outer terminal 12.

[0042] Referring toFigure 3 、 Figure 4 and Figure 5 As shown in FIGS. 1-3, the inner side wall of the first accommodating cavity 14 is provided with a plurality of heat-conducting sheets 17 through heat-conducting silicone grease and a buckle assembly. The outer side wall of the female seat body is provided with a heat dissipation assembly, which includes a circular ring-shaped heat dissipation substrate arranged on the outer side wall of the female seat body and a plurality of heat dissipation protrusions 19 arranged in a ring shape outside the circular ring-shaped heat dissipation substrate 18. The heat-conducting sheets 17 are heat-conducting silicone sheets, graphite heat-conducting sheets or phase-change heat-conducting pads.

[0043] Through the arrangement of the heat-conducting sheets 17, the heat inside the female seat connector 1 can be effectively absorbed and conducted to the outer surface of the female seat connector 1, thereby helping to achieve the heat dissipation effect of the female seat connector 1. At the same time, through the circular ring-shaped heat dissipation substrate 18 and the ring-shaped arrangement of the heat dissipation protrusions 19 on the heat dissipation assembly outside the female seat body 13, the heat dissipation surface area is effectively increased, the heat dissipation efficiency is improved, and the heat generated inside the female seat connector 1 during the plug-in connection of the male seat connector 5 is quickly dissipated, thereby effectively reducing the working temperature of the connector. At the same time, the arrangement of the heat dissipation protrusions 19 also plays a role in preventing slipping during the installation of the female seat connector 1. Therefore, the high-efficiency heat dissipation connector can effectively disperse the heat generated inside the connector, prolong the service life of the connector, and improve the reliability and stability of the product.

[0044] The circular ring-shaped heat dissipation substrate 18 is provided with a mesh groove 20 away from the female seat body 13. In this application, the mesh groove 20 is arranged by recessing a plurality of holes on the surface of the circular ring-shaped heat dissipation substrate 18. Through the arrangement of the mesh groove 20, the air flow channel can be increased, the surrounding cold air can more easily enter the surface of the heat dissipation substrate, the heat on the heat dissipation substrate can be effectively taken away, and the heat dissipation performance of the connector is enhanced.

[0045] Referring to FIGS. 4-6, the male seat connector 5 includes a male seat body 51 and a metal terminal 52, a first metal sleeve 53 and a second metal sleeve 54 connected in sequence and arranged in the male seat body 51. One end of the metal terminal 52 is open and extends to the other end to be arranged with a third accommodating cavity 55. Figure 6 Figure 7 When the male seat connector 5 is inserted into the female seat connector 1, the metal terminal 52 is sleeved on the inner terminal 11, and the outer wall of the inner terminal 11 abuts against the inner wall of the third accommodating cavity 55. The outer wall of the metal terminal 52 abuts against the inner wall of the second accommodating cavity 15. The male seat body 51 is sleeved on the outer terminal 12, and the male seat body 51 abuts against the inner wall of the first accommodating cavity 14, thereby realizing the plug-in connection of the male seat connector 5 and the female seat connector 1.

[0046]

[0047] ​​The detection assembly 6 is arranged on the female seat body 13, and comprises a temperature detection circuit 61, a travel switch 62 and an MCU interface; an output end of the temperature detection circuit 61 is electrically connected with the MCU interface through the travel switch 62; and the MCU interface is selectively electrically connected with an external MCU; the temperature detection circuit 61 is used for measuring and collecting temperature data of the female seat connector 1; the travel switch 62 is used for controlling on-off of the temperature detection circuit, and the travel switch 62 comprises a button 621 for controlling the travel switch 62 to be connected or disconnected by pressing, and the button 621 is arranged on an inner wall of the first accommodating cavity 14. In the embodiment, part of a line and an assembly of the detection assembly are arranged in a detection box which is detachably arranged on the mounting plate 3, and the MCU interface is arranged on a side surface of the detection box which is in contact with the outside.

[0048] When the male seat connector 5 is inserted into the female seat connector 1, the male seat body 51 is sleeved on the outer terminal 12, and the male seat body 51 abuts against the inner wall of the first accommodating cavity 14 and presses the button 621, so that the travel switch 62 is turned on and temperature detection is started; the MCU can also detect a change in a switch signal amount of the travel switch 62, and determine a plugging state of the male seat connector 5 and the female seat connector 1. When the male seat connector 5 is pulled away from the female seat connector 1, the male seat body 51 is separated from the inner wall of the first accommodating cavity 14, so that the button 621 is reset and the travel switch 62 is turned off, and temperature detection is stopped.

[0049] wherein reference Figure 9As shown, the travel switch 62 further comprises a touch spring assembly connected with the button 621; the touch spring assembly is built in the inner wall of the first accommodating cavity 14; and the touch spring assembly comprises an insulating base 622, the insulating base 622 is fixedly connected with a shell 623 away from one side of the inner wall of the first accommodating cavity 14, the shell 623 is provided with a mounting seat 624 and a spring seat 625; the insulating base 622 and the mounting seat 624 are both hollow structures, the insulating base 622 is filled with thermal insulation material, the mounting seat 624 is filled with heat-conducting material 632, and the insulating base 622 is filled with thermal insulation material 626; the button 621 is movably arranged on the insulating base 622 and connected with the mounting seat 624, and the button 621 is provided with an insulating layer; the mounting seat 624 is provided with a spring groove 627 away from one side of the button 621, a plurality of conductive sheets 628 are embedded on the mounting seat 624 on both sides of the spring groove 627; the spring seat 625 is provided with a spring guide column 629 and a plurality of reeds 630 corresponding to the conductive sheets 628, the spring guide column 629 is sleeved with a spring 631, one end of the spring guide column 629 away from the spring seat 625 abuts against the inner wall of the spring groove 627, the conductive sheets 628 are electrically connected with the temperature detection circuit 61, and the reeds 630 are electrically connected with the MCU interface. The arrangement of the insulating base 622 and the insulating layer can effectively isolate the travel switch 62 from the internal environment of the female connector 1, thereby improving the use safety of the travel switch 62. Meanwhile, the thermal insulation material filled in the hollow insulating base 622 can isolate the heat of the high-temperature part of the travel switch 62, thereby greatly reducing the heat transferred to the inside of the travel switch 62; the heat-conducting material 632 filled in the mounting seat 624 can dissipate the little heat entering the inside of the travel switch 62 to the outside of the travel switch 62, thereby effectively solving the problem of poor working stability of the travel switch 62 in a high-temperature environment, further improving the heat resistance and safety of the touch spring assembly, and meeting the application requirements.

[0050] When the male connector 5 is inserted into the female connector 1, the male body 51 abuts against the inner wall of the first accommodating cavity 14 and presses the button 621, the button 621 starts to move downward, drives the mounting seat 624 to move downward together, and compresses the spring 631 on the spring guide column 629. With the compression of the spring 631, the reeds 630 on the spring guide column 629 start to contact the conductive sheets 628, and finally form a circuit path, thereby realizing the contact closure of the travel switch 62. When the male connector 5 is pulled away from the female connector 1, the male body 51 gradually separates from the inner wall of the first accommodating cavity 14, the external pressure of the button 621 disappears, the spring 631 gradually restores its original length, pushes the reeds 630 away from the conductive sheets 628, breaks the circuit path, and the contact of the travel switch 62 returns to the open state.

[0051] Reference Figure 8 As shown, the temperature detection circuit 61 comprises a first resistor, a capacitor and a thermistor; the thermistor is arranged on the outer wall of the outer terminal 12, the first end of the first resistor is connected to the working voltage, the common connection point of the second end of the first resistor and the first end of the thermistor is electrically connected to the ADC module of the MCU through the MCU interface, the second end of the thermistor is grounded, and the two ends of the thermistor are connected in parallel with the capacitor.

[0052] The temperature of the female connector 1 will rise when it is working, and the thermistor arranged on the outer wall of the outer terminal 12 can instantly perceive the temperature change inside the female connector 1, so that the resistance value of the thermistor changes with the temperature change. The MCU reads the voltage value at the two ends of the thermistor through the ADC module, and converts the analog signal into a digital signal, and then the MCU can convert the digital signal into an actual temperature value according to a preset algorithm or a table lookup method. In this embodiment, the thermistor is an NTC thermistor.

[0053] The female connector body 13 is also provided with a buzzer and an indicator light (not shown in the figure), and the buzzer and the indicator light are electrically connected with the MCU respectively; the MCU controls the switching of the buzzer according to the temperature data obtained by the temperature detection circuit 61, and controls the indicator light to be on or off according to the on or off state of the travel switch.

[0054] When the MCU compares the obtained temperature value with the preset temperature threshold value in it, if the temperature exceeds the preset temperature threshold value, the MCU sends a first alarm information through the buzzer to warn and remind the user to check the use state of the connector. When the travel switch is turned on, the high and low levels in the temperature detection circuit 61 are converted, so that the MCU can detect the switching signal of the travel switch 62 and control the indicator light to be on.

[0055] A through hole 7 is arranged in the middle of the side edge of the female connector body 13, and a micro switch for controlling the power on or off of the female connector 1 is arranged at the through hole 7; the micro switch is electrically connected with the MCU, and the MCU controls the on or off of the micro switch according to the on or off state of the travel switch 62.

[0056] Reference Figure 10 As shown, the application also provides a kind of intelligent emergency power connector detection method, which is suitable for the intelligent emergency power connector described above, comprising: step S1 to step S3.

[0057] Specifically, step S1: the male connector 5 is inserted into the female connector 1, and the travel switch 62 is turned on, so that the temperature detection circuit 61 starts to detect and collect temperature data.

[0058] Step S2: obtaining the current temperature T of the female connector based on the temperature data; if the temperature T is greater than or equal to a first preset temperature threshold, it is determined that the current female connector 1 is overheated, and a first alarm information is sent; if the temperature T is greater than or equal to a second preset temperature, it is determined that the temperature of the female connector 1 exceeds the safe use temperature, the power supply of the female connector 1 is disconnected, and a second alarm information is sent; wherein the second preset temperature threshold is greater than the first preset temperature threshold.

[0059] By monitoring the temperature T in real time, it can be quickly identified whether the female connector 1 is overheated when the male connector 5 is plugged into the female connector 1, so as to send the first alarm information in time, remind the user or the management personnel to take measures, and avoid potential safety hazards. When the temperature T exceeds the higher second preset temperature threshold, the function of automatically disconnecting the power supply ensures that the female connector will not continue to work at a dangerous high temperature, effectively preventing equipment damage and safety accidents.

[0060] Wherein, the temperature detection circuit 61 collects temperature data in the following steps: S21: when the travel switch is turned on, the MCU reads the analog voltage of the ADC module interface, and converts the analog voltage into an ADC value.

[0061] S22: obtaining the reference voltage V1 of the current temperature detection circuit according to the ADC value, and obtaining the resistance value R of the current thermistor based on the reference voltage V1 T ; the calculation formula of the reference voltage V1 is: ; the calculation formula of the resistance value R T of the thermistor is: ; wherein, n represents the number of bits of the ADC module, D adc represents the ADC value; V2 represents the working voltage; R1 represents the resistance value of the first resistor.

[0062] S23: obtaining the temperature T of the current female connector based on the obtained resistance value R T of the thermistor, and the calculation formula of the temperature T is: ; wherein, T0 represents a preset reference temperature; R0 represents the thermistor value corresponding to the preset reference temperature T0; B represents the B value coefficient of the thermistor.

[0063] S3: collecting and recording the temperature of the female connector at different time points, and then generating a corresponding first time-temperature curve according to the corresponding relationship between the temperature and the time, and judging the heat dissipation state of the female connector according to the first time-temperature curve.

[0064] The female seat connector 1 generates a certain amount of heat during operation, and excessive temperature can cause damage to internal components of the female seat connector 1, and even affect the use of the male seat connector 5 plugged therewith, thereby affecting the normal operation of the equipment. At the same time, the external temperature will also directly affect the normal use of the connector. Therefore, in normal operation, a heat dissipation component is arranged inside the female seat connector 1, and an external radiator is used to dissipate heat from the female seat connector 1. However, the heat dissipation component can be reduced due to the length of use, use failure, damage or other reasons, the heat dissipation condition provided by the external radiator can not meet the current heat dissipation requirement, and the external temperature can also directly affect the heat dissipation effect. Therefore, it is necessary to monitor the heat dissipation state of the female seat connector 1 to ensure that it operates in a normal heat dissipation state, to discover and handle heat dissipation problems in a timely manner, to prevent the occurrence of female seat connector 1 failure, to prolong the service life of the connector as a whole, and to improve the safety of use.

[0065] Among them, the steps S2 and S3 also include a step S21:

[0066] According to the number of the generated first alarm information or the number of the second alarm information within the preset number of times of turning on the travel switch (i.e. the number of times of operating the female seat connector 1), it is determined whether the heat dissipation state of the female seat connector needs to be monitored and handled, and when the heat dissipation state needs to be monitored and handled, a heat dissipation state monitoring signal is generated to the MCU, and the MCU executes the step S3 according to the heat dissipation state monitoring signal.

[0067] Real-time detection of the heat dissipation state of the female seat connector 1 can increase the workload of the MCU, causing data redundancy and resource waste. Therefore, the heat dissipation state needs to be detected only when necessary. When the number of generated first alarm information is too large or the second alarm information is generated, it indicates that there is a serious problem with the heat dissipation of the female seat connector 1 during operation, and therefore the heat dissipation state of the female seat connector 1 needs to be monitored to discover abnormal conditions of the heat dissipation of the female seat connector 1 in a timely manner. In this embodiment, the preset number of times of turning on the travel switch is 4. When the number of the first alarm information is greater than or equal to 3 or the number of the second alarm information is greater than or equal to 1, it is determined that the heat dissipation state of the female seat connector needs to be monitored and handled.

[0068] Specifically, the step S3 is specifically:

[0069] Step S31: The temperature of the female seat connector 1 at different time points is cyclically collected and recorded, and a first time-temperature curve is generated and updated according to the corresponding relationship between the temperature and the time.

[0070] Step S32: After the female seat connector 1 operates for a predetermined time, the curve slope of the first time-temperature curve of the female seat connector 1 within a predetermined time interval is obtained every predetermined time interval.

[0071] When the slope of the curve exceeds the preset slope threshold, it is determined that the heat dissipation state is abnormal, and a warning information is issued. Wherein, the heat dissipation state abnormality includes heat dissipation state abnormality caused by poor environmental heat dissipation and heat dissipation state abnormality caused by poor heat dissipation of the female connector 1.

[0072] Step S33: When the male connector 5 is pulled away from the female connector 1, the travel switch 62 is turned off, the temperature data collection of the temperature detection circuit 61 is stopped, and the first time-temperature curve is stopped updating.

[0073] By cyclically collecting and recording the temperature data of the female connector 1 and generating the first time-temperature curve, the temperature change of the connector can be tracked in real time. Under normal heat dissipation conditions, the time-temperature curve generated will tend to be stable after the temperature reaches a certain value. Therefore, after the female connector 1 runs for a predetermined time, the slope of the curve in a preset time interval is obtained every preset time interval, and when the slope of the curve exceeds the preset slope threshold, it indicates that the temperature rises rapidly in a short time, which can be judged as a possible heat dissipation problem or internal failure. Timely issuing a warning message can help maintenance personnel respond quickly and prevent the female connector 1 from being damaged or causing safety problems. Through continuous monitoring of the heat dissipation state, timely intervention and repair of the heat dissipation problem can avoid the failure of the connector caused by overheating, and can ensure that the female connector 1 and the male connector 5 operate within a proper temperature range, thereby maintaining the stability and reliability of the connector.

[0074] Preferably, the intelligent emergency power connector detection method further comprises step S4: obtaining the working environment temperature of the female connector, and when the heat dissipation state of the female connector obtained in step S3 is abnormal, performing heat dissipation control on the female connector based on the working environment temperature until the heat dissipation state returns to normal.

[0075] According to the working environment temperature, it can be preliminarily judged whether the heat dissipation state abnormality is mainly caused by poor environmental heat dissipation or poor heat dissipation of the female connector 1. When the working environment temperature is greater than the normal working environment temperature, it can be preliminarily judged that the cause of the heat dissipation state abnormality is poor environmental heat dissipation, and the environmental heat dissipation condition can be improved preferentially. After improving the environmental heat dissipation condition, if the heat dissipation state is still abnormal, it can be considered that the female connector 1 has poor heat dissipation. The internal heat dissipation device of the female connector 1 is checked and replaced until the heat dissipation state of the female connector 1 returns to normal. Embodiment

[0076] Compared with embodiment 1, the difference between embodiment 2 and embodiment 1 is that step S3 is specifically:

[0077] Step S301: At a standard temperature, the temperature of the female connector 1 at different time points in a preset period is collected and recorded, and a corresponding first time-temperature curve is generated according to the correspondence between the temperature and the time.

[0078] Step S302: The first time-temperature curve generated by the female connector 1 in n working times is obtained, and the first time-temperature curve is fitted into a standard time-temperature curve; at the same time, a second time-temperature curve of the female connector 1 in a state lacking heat dissipation is obtained. The state lacking heat dissipation refers to removing the heat dissipation device inside the female connector 1, such as a heat conduction sheet, and the heat dissipation device outside the female connector 1.

[0079] Preferably, after obtaining the first time-temperature curve generated by the female connector 1 in n working times, the temperature values of a plurality of first time-temperature curves in each time period are subjected to Grubbs criterion test, and if an abnormal temperature value is identified by the test, the first time-temperature curve to which the abnormal temperature value belongs is rejected, and the remaining first time-temperature curves are fitted into a standard time-temperature curve.

[0080] Step S303: A third time-temperature curve of the actual working state of the current female connector 1 is obtained, and the second time-temperature curve and the third time-temperature curve are compared with the standard time-temperature curve respectively, the difference value D1 between the second time-temperature curve and the standard time-temperature curve is calculated, and the difference value D2 between the third time-temperature curve and the standard time-temperature curve is calculated.

[0081] Wherein, ; ; wherein, represents the standard time-temperature curve; represents the second time-temperature curve; represents the third time-temperature curve, N represents the number of temperatures; x i represents the temperature value of the i-th time point;

[0082] Step S304: The difference value D1 and the difference value D2 are compared, and are obtained, and whether the heat dissipation state is abnormal is judged according to . Specifically, when , the heat dissipation state is set to be excellent; if , the heat dissipation state is good; if , the heat dissipation state is medium; if , the heat dissipation state is poor.

[0083] By collecting temperature data at a standard temperature and generating a standard time-temperature curve, a reliable benchmark is provided for the evaluation of the heat dissipation state of the female connector 1. Further, by comparing the difference value of the heat dissipation state of the third time-temperature curve in the actual working state with the standard curve and the difference value of the second time-temperature curve in the lack of heat dissipation state with the standard time-temperature curve, it is judged whether external heat dissipation needs to be increased or the internal heat dissipation of the female connector 1 is normal, effectively preventing equipment failure caused by heat dissipation problems, discovering heat dissipation abnormalities in time, and improving the stability of the connector in use and prolonging the service life of the connector.

[0084] The above only discloses several preferred embodiments of the present application, and of course cannot limit the scope of the right of the present application, so the equivalent changes made in the patent application scope of the present application still belong to the scope covered by the present application.

Claims

1. An intelligent emergency power connector, characterized in that: include: A female connector, comprising an inner terminal, an outer terminal, and a female body; the outer terminal is disposed within the female body; the female body is open at one end and extends to the opposite end to form a first accommodating cavity, and the outer terminal is disposed within the first accommodating cavity; the outer terminal and the female body are open at the same end and extend to the opposite end to form a second accommodating cavity; the inner terminal is disposed within the second accommodating cavity; A male connector, the male connector being removably mounted within the female connector, and comprising a male body and a metal terminal, a first metal sleeve, and a second metal sleeve sequentially connected and disposed within the male body; the metal terminal being open at one end and extending to the opposite end to form a third accommodating cavity; A detection assembly, which is arranged on the female socket body and includes a temperature detection circuit, a limit switch and an MCU interface; the output end of the temperature detection circuit is electrically connected to the MCU interface through the limit switch; and the MCU interface is selectively electrically connected to an external MCU; the temperature detection circuit is used to measure and collect temperature data of the female socket connector; the limit switch is used to control the on and off of the temperature detection circuit, and the limit switch includes a button that is pressed to control the connection or disconnection of the limit switch, and the button is provided on the inner wall of the first accommodating cavity; When the male connector is inserted into the female connector, the metal terminal is sleeved on the inner terminal, and the outer wall of the inner terminal abuts against the inner wall of the third accommodating cavity, and the outer wall of the metal terminal abuts against the inner wall of the second accommodating cavity; the male body is sleeved on the outer terminal, and the male body abuts against the inner wall of the first accommodating cavity, pressing the button; when the male connector is pulled out of the female connector, the male body separates from the inner wall of the first accommodating cavity, causing the button to reset; The travel switch further comprises a contact spring assembly connected to the button; the contact spring assembly is built into the inner wall of the first accommodating cavity; and the contact spring assembly comprises an insulating base, a housing is fixedly connected to the side of the insulating base away from the inner wall of the first accommodating cavity, and a mounting seat and a spring seat are provided in the housing; The insulating base and the mounting seat are both hollow structures, and the insulating base is filled with a heat-insulating material, and the mounting seat is filled with a heat-conducting material; the button is movably arranged on the insulating base and connected to the mounting seat, and the button is provided with an insulating layer; the mounting seat is provided with a spring groove on a side away from the button, and a plurality of conductive sheets are embedded in the mounting seat on both sides of the spring groove; the spring seat is provided with a spring guide column and a plurality of spring sheets corresponding to the conductive sheets, and a spring is sleeved on the spring guide column, and the end of the spring away from the spring seat is in close contact with the inner wall of the spring groove, and the conductive sheet is electrically connected to the temperature detection circuit, and the spring sheet is electrically connected to the MCU interface.

2. The intelligent emergency power connector according to claim 1, characterized in that: The temperature detection circuit includes a first resistor, a capacitor, and a thermistor; the thermistor is arranged on the outer wall of the external terminal, the first end of the first resistor is connected to the operating voltage, and the common connection point between the second end of the first resistor and the first end of the thermistor is electrically connected to the ADC module of the MCU through the MCU interface; the second end of the thermistor is grounded, and the two ends of the thermistor are connected in parallel with the capacitor.

3. The intelligent emergency power connector according to claim 1, characterized in that: The female socket body is also provided with a buzzer and an indicator light, which are electrically connected to the MCU respectively; the MCU controls the switch of the buzzer according to the temperature data obtained by the temperature detection circuit, and controls the on and off of the indicator light according to the on or off state of the travel switch; a through hole is provided in the middle of the side of the female socket body, and a micro switch for controlling the on and off of the female socket connector and the external power supply is connected to the through hole; the micro switch is electrically connected to the MCU, and the MCU controls the on and off of the micro switch according to the on or off state of the travel switch.

4. The intelligent emergency power connector according to claim 1, characterized in that: Several heat-conducting plates are arranged on the side walls of the first accommodating cavity, and a heat dissipation component is arranged on the outer wall of the mother seat body. The heat dissipation component includes a circular heat dissipation substrate covering the outer wall of the mother seat body and a plurality of heat dissipation protrusions arranged in an annular manner on the outside of the circular heat dissipation substrate.

5. A method for detecting an intelligent emergency power connector, which is applicable to the intelligent emergency power connector according to claim 2, characterized in that: include: Step S1: inserting the male connector into the female connector, turning on the travel switch, and causing the temperature detection circuit to start detecting and collecting temperature data; Step S2: Acquire the current temperature T of the female connector based on the temperature data; if the temperature T is greater than or equal to a first preset temperature threshold, determine that the current female connector temperature is too high, and issue a first alarm message; if the temperature T is greater than or equal to a second preset temperature, determine that the female connector temperature exceeds the safe operating temperature, disconnect the power supply of the female connector, and issue a second alarm message; wherein, the second preset temperature threshold is greater than the first preset temperature threshold; Step S3: Collect and record the temperature of the female connector at different time points, and then generate a corresponding first time-temperature curve based on the corresponding relationship between the temperature and time, and judge the heat dissipation status of the female connector based on the first time-temperature curve.

6. The intelligent emergency power supply connector detection method according to claim 5, characterized in that: in, In step S1, the temperature detection circuit collects temperature data in the following steps: S11: When the travel switch is turned on, the MCU reads the analog voltage of the ADC module interface and converts the analog voltage into an ADC value; S12: Obtain the reference voltage V1 of the current temperature detection circuit according to the ADC value, and obtain the current resistance value R of the thermistor based on the reference voltage V1 T ; The calculation formula of the reference voltage V1 is: ; The resistance value of the thermistor R T The calculation formula is: Wherein, n represents the number of bits of the ADC module, D adc represents the ADC value; V2 represents the operating voltage; R1 represents the resistance value of the first resistor; S13: Based on the resistance value R of the thermistor T Calculate and obtain the temperature T of the current female connector. The calculation formula of the temperature T is: ; Wherein, T0 represents the preset reference temperature; R0 represents the thermistor value corresponding to the preset reference temperature T0; B represents the B value coefficient of the thermistor.

7. The intelligent emergency power supply connector detection method according to claim 5, characterized in that: The step S3 is specifically as follows: S31: cyclically collecting and recording the temperature of the female connector at different time points, and generating and updating a first time-temperature curve according to the corresponding relationship between the temperature and time; S32: After the female connector has been running for a predetermined time, the slope of a first time-temperature curve of the current female connector within the preset time is obtained at intervals of a preset time t; when the slope of the curve exceeds a preset slope threshold, it is determined that an abnormality exists in the heat dissipation state, and an early warning message is issued; wherein the abnormality in the heat dissipation state includes an abnormality caused by poor heat dissipation of the environment and an abnormality caused by poor heat dissipation of the female connector; S33: When the male connector is unplugged from the female connector, the travel switch is disconnected, the temperature detection circuit stops collecting temperature data, and stops updating the first time-temperature curve.

8. The intelligent emergency power connector detection method according to claim 5, characterized in that: The step S3 is specifically as follows: S301: Under a standard temperature, collect and record the temperature T of the female connector at different time points within a preset sampling period, and generate a corresponding first time-temperature curve based on the corresponding relationship between the temperature and time; S302: Obtaining the first time-temperature curve generated when the female connector operates n times, and fitting the first time-temperature curve into a standard time-temperature curve; at the same time, obtaining a second time-temperature curve of the female connector in a state without heat dissipation; S303: Obtain a third time-temperature curve of the actual working state of the current female connector, and compare the second time-temperature curve and the third time-temperature curve with the standard time-temperature curve respectively, calculate the difference value D1 between the second time-temperature curve and the standard time-temperature curve, and calculate the difference value D2 between the third time-temperature curve and the standard time-temperature curve; specifically, ; ;in, represents the standard time-temperature curve; represents a second time-temperature curve; represents the third time-temperature curve, N represents the number of acquired temperatures T; x i represents the temperature value at the i-th time point; S304: Compare the difference value D1 and the difference value D2 to obtain , and according to Determine whether the heat dissipation status is abnormal.

9. The intelligent emergency power connector detection method according to claim 6, characterized in that: The step S21 is further included between the steps S2 and S3: Determine whether it is necessary to perform heat dissipation status monitoring on the female connector according to the number of first alarm messages or the number of second alarm messages generated within the preset number of travel switch conduction times, and when heat dissipation status monitoring is required, generate a heat dissipation status monitoring signal to the MCU, and the MCU executes the step S3 according to the heat dissipation status monitoring signal; wherein, when the number of the first alarm messages is greater than or equal to 3 or the number of the second alarm messages is greater than or equal to 1, it is determined that it is necessary to perform heat dissipation status monitoring on the female connector.

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