Intelligent emergency power supply connector and detection method thereof

Abstract

According to the intelligent emergency power supply connector provided by the invention, the button of the travel switch is arranged on the inner wall of the first accommodating cavity, so that when a male seat connector is inserted into a female seat connector, the button is pressed to switch on the travel switch, and the detection of insertion and extraction of the connector is realized; meanwhile, after the travel switch is switched on, real-time temperature detection, acquisition and storage are carried out on the female seat connector generating heat through the temperature detection circuit, so that the working state of the female seat connector is convenient to acquire, faults or damage of the connector caused by over-temperature are avoided, and the service life of the connector is prolonged. Meanwhile, the invention also provides an intelligent emergency power supply connector detection method, and the method comprises the steps: obtaining the real-time temperature T of the female seat connector, comparing the real-time temperature T with a first preset temperature threshold value and a second temperature threshold value, and giving out early warning information or disconnecting a power supply of the female seat connector under the condition that the temperature is too high or even exceeds a safe use temperature. And the safety protection of the female seat connector is realized.

Description

Technical Field

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

[0002] The emergency power connector is a power connector used to respond to emergencies. In the event of a power outage, power interruption or other power supply problems, the external power supply facility can provide the necessary power support to the equipment in a timely manner through the emergency power connector to ensure the normal operation of the equipment.

[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, emergency power connectors also need to consider factors such as safety and ease of use to ensure that no damage is caused to personnel and equipment during use.

[0004] With the advancement of ubiquitous Internet of Things and smart power grids, there is a more urgent need for comprehensive monitoring and intelligent early warning of emergency power connector data in actual on-site use.

[0005] At present, the emergency power connectors on the market only provide physical connectors for power input, and do not have the real-time temperature detection of the connector and the detection of the connector insertion and removal status. When the external power supply facilities are connected, the temperature of the connector will gradually rise. If the temperature threshold cannot be warned in time, it will often cause damage to the equipment 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 warning, and connector insertion and removal signal detection. Summary of the invention

[0006] The connector in the prior art only provides a physical connector for power input, but does not have the functions of real-time temperature detection of the connector and connector insertion and removal status detection; the present invention provides an intelligent emergency power connector and a detection method thereof.

[0007] A smart emergency power supply connector, comprising: a female connector, the female connector comprising an inner terminal, 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 opposite end to provide a first accommodating cavity, and the outer terminal is arranged in the first accommodating cavity; and the outer terminal is open at the same end as the female body and extends to the other opposite end to provide a second accommodating cavity; the second accommodating cavity is provided in the inner terminal; a male connector, the male connector can be detachably installed in the female connector, and the male connector comprises a male body and a metal terminal, a first metal sleeve, and a second metal sleeve connected in sequence and arranged in the male body; one end of the metal terminal is open and extends to the other opposite end to provide a third accommodating cavity; a detection component, the detection component is arranged on the female body, and the detection component includes a temperature detection circuit, a travel switch and an MCU interface ; The output end of the temperature detection circuit is electrically connected to the MCU interface through the travel 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 connector; the travel switch is used to control the on and off of the temperature detection circuit, and the travel switch includes a button that controls the connection or disconnection of the travel switch by pressing, and 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, 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, and the button is pressed; when the male connector is pulled out of 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 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 working voltage, and 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.

[0009] Preferably, a buzzer and an indicator light are also provided on the female socket body, and the buzzer and indicator light 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.

[0010] Preferably, a through hole is provided through the middle part of the side of the female socket body, and a micro switch for controlling the on and off of the power supply of the female socket connector 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.

[0011] Preferably, a plurality of heat-conducting plates are arranged on the side walls of the first accommodating cavity, a heat dissipation assembly is arranged on the outer wall of the mother seat body, and the heat dissipation assembly 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 shape on the outside of the circular heat dissipation substrate.

[0012] Preferably, the travel switch also includes a contact spring assembly connected to the button; the contact spring assembly is built into the inner wall of the first accommodating chamber; and the contact spring assembly includes an insulating base, and a shell is fixedly connected to the side of the insulating base away from the inner wall of the first accommodating chamber, and a mounting seat and a spring seat are provided in the shell; the insulating base and the mounting seat are both hollow structures, and the insulating base is filled with heat insulating material, and the mounting seat is filled with heat conductive material; the button is movably arranged on the insulating base and connected to the mounting seat, and an insulating layer is provided on the button; a spring groove is provided on the side of the mounting seat away from the button, and a plurality of conductive sheets are embedded on the mounting seats on both sides of the spring groove; a spring guide column and a plurality of spring sheets corresponding to the conductor are provided on the spring seat, and a spring is sleeved on the spring guide column, and one end of the spring away from the spring seat is in close contact with the inner wall of the spring groove, and the conductor is electrically connected to the temperature detection circuit, and the spring sheet is electrically connected to the MCU interface.

[0013] The present invention also provides an intelligent emergency power connector detection method, which is applicable to an intelligent emergency power connector as described above, and is characterized in that it includes: step S1: inserting the male connector into the female connector, turning on the travel switch, so that the temperature detection circuit starts to detect and collect temperature data; 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 the first preset temperature threshold, it is judged that the current temperature of the female connector is too high, and a first alarm message is issued; if the temperature T is greater than or equal to the second preset temperature, it is judged that the temperature of the female connector exceeds the safe use temperature, the power supply of the female connector is disconnected, and a second alarm message is issued; wherein the second preset temperature threshold is greater than the first preset temperature threshold; 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 time, and judging the heat dissipation state of the female 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 reference voltage V of the current temperature detection circuit according to the ADC value. 1 , and based on the reference voltage V 1 Get the current resistance value R of the thermistor T ; The reference voltage V 1 The calculation formula is: V 1 =(D adc ×2 n )×V 2 ; 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; V 2 Indicates the working voltage; R 1 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: Among them, the T 0 Indicates the preset reference temperature; R 0 Indicates the preset reference temperature T 0 Corresponding thermistor value; B represents the B value coefficient of the thermistor.

[0015] Preferably, 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, obtaining 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 the heat dissipation state is abnormal, and an early warning message is issued; wherein, the abnormal 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 travel 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 as follows: S301: under the standard temperature, collecting and recording the temperature of the female connector at different time points within a preset period, and generating a corresponding first time-temperature curve according to the corresponding relationship between the temperature and time; S302: obtaining the first time-temperature curve generated by the female connector when it works n times, and fitting the first time-temperature curve into a standard time-temperature curve; at the same time, obtaining the second time-temperature curve of the female connector in the absence of heat dissipation; S303: obtaining the third time-temperature curve of the actual working state of the current 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 between the second time-temperature curve and the standard time-temperature curve, and calculating the difference value D2 between the third time-temperature curve and the standard time-temperature curve; wherein, Among them, f(x i ) represents the standard time-temperature curve; g(x i ) represents the second time-temperature curve; e(x i ) represents the third time-temperature curve, N represents the number of temperatures; 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 determine whether the heat dissipation state is abnormal based on ΔD.

[0017] The step S21 is also included between steps S2 and S3: determining 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, generating a heat dissipation status monitoring signal to the MCU, and the MCU executes 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.

[0018] The present invention provides an intelligent emergency power supply connector. The 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 the detection of connector insertion and removal; at the same time, after the travel switch is turned on, the temperature of the female connector that generates heat is detected, acquired and stored in real time through a temperature detection circuit, which is convenient for obtaining the working state of the female connector, avoiding failure or damage of the connector caused by overheating, and is beneficial to extending the service life of the connector.

[0019] At the same time, the present invention also provides an intelligent emergency power supply connector detection method, which obtains the real-time temperature T of the mother connector and compares it with a first preset temperature threshold and a second temperature threshold. When the temperature is too high or even exceeds the safe use temperature, an early warning message is issued or the power supply of the mother connector is disconnected to achieve safety protection of the mother connector; at the same time, based on the collection and recording of the temperature of the mother connector at different time points, and then based on the corresponding relationship between the temperature and time, a corresponding first time-temperature curve is generated, and the heat dissipation state of the mother connector is judged according to the first time-temperature curve, and the abnormal heat dissipation state of the mother connector is discovered in time, and then the problems existing in the mother connector are discovered, so as to avoid equipment damage caused by excessive temperature, improve the safety of connector use and extend the service life of the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the open structure of the female connector provided by the present invention;

[0021] Figure 2 A schematic diagram of the closed structure of the female connector provided by the present invention;

[0022] Figure 3 A schematic diagram of the structure of the inner terminal, the outer terminal and the female socket body provided by the present invention;

[0023] Figure 4 A schematic diagram of the expanded structure of the heat dissipation assembly provided by the present invention;

[0024] Figure 5 It is a schematic diagram of the partial cross-sectional structure of the heat dissipation component of the female seat body provided by the present invention.

[0025] Figure 6 A schematic diagram of the three-dimensional structure of the male connector provided by the present invention;

[0026] Figure 7 A schematic diagram of the cross-sectional structure of the male connector provided by the present invention;

[0027] Figure 8 A simplified schematic diagram of a temperature detection circuit provided by the present invention;

[0028] Fig. 9 A simplified schematic diagram of the cross-sectional structure of the travel switch provided by the present invention;

[0029] Fig.10 A schematic flow chart of a method for detecting an intelligent emergency power supply connector provided by the present invention.

[0030] Figure ID

[0031] 1. Female connector; 11. Inner terminal; 12. Outer terminal; 13. Female body; 14. First accommodating cavity; 15. Second accommodating cavity; 16. Screw; 17. Heat conducting sheet; 18. Circular heat dissipation substrate; 19. Heat dissipation protrusion; 20. Net slot; 2. Connector cover; 21. Hook; 22. First locking hole; 3. Mounting plate; 31. Slot; 32. Second locking hole; 33. Annular rubber ring; 4. Rotating shaft; 5. Male connector; 51. Male body; 5 2. Metal end; 53. First metal sleeve; 54. Second metal sleeve; 55. Third accommodating chamber; 6. Detection assembly; 61. Temperature detection circuit; 62. Travel switch; 621. Button; 622. Insulating base; 623. Shell; 624. Mounting seat; 625. Spring seat; 626. Thermal insulation material; 627. Spring slot; 628. Conductive sheet; 629. Spring guide column; 630. Spring sheet; 631. Spring; 632. Thermal conductive material; 7. Through hole. DETAILED DESCRIPTION

[0032] The embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example 1

[0034] An intelligent emergency power supply connector comprises: a female connector 1, a male connector 5 detachably mounted on the female connector 1, and a detection component 6.

[0035] Specifically, refer to Figure 1 and Figure 3 As shown, the female connector 1 includes an inner terminal 11, an outer terminal 12 and a female body 13; the outer terminal 12 is arranged in the female body 13; one end of the female body 13 is open and a first accommodating cavity 14 is extended to the other opposite end, and the outer terminal 12 is arranged in the first accommodating cavity 14; and the outer terminal 13 and the female body 13 are open at the same end and a second accommodating cavity 15 is extended to the other opposite end; the inner terminal 12 is arranged in the second accommodating cavity 15.

[0036] Preferably, in this embodiment, the female seat body 11 is made of a thermally conductive plastic; the thermally conductive plastic includes 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 agents and 1-3 parts of flame retardants are made by melt blending. By using high-density polyethylene as the matrix material and carbon nanotubes and boron nitride as thermally conductive fillers, the thermal conductivity and thermal stability of the plastic are significantly improved; basalt particles and silane coupling agents are used to enhance the strength and wear resistance of the plastic, and a certain amount of flame retardants are added to improve the flame retardant properties of the plastic. The female seat body made of this plastic can make the female connector have good thermal conductivity, thermal stability and strength, and good heat dissipation performance.

[0037] refer to Figure 1 , Figure 2 as well as Figure 3 As shown, the female connector 1 also includes a connector cover 2, and a square mounting plate 3 is arranged on the outer side of one end of the opening of the female body 13, one end of the mounting plate 3 is hinged with 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 this embodiment, the mounting plate 3 is rotatably connected to the connector cover 2 via a rotating shaft 4. When the female 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 falling inside the female connector 1 and affecting the next use, thereby ensuring the sealing and dustproof properties of the female connector 1.

[0038] The connector cover 2 is provided with a hook 21 and a first locking hole 22 at one end away from the rotating shaft 4, and the mounting plate 3 is provided with a slot 31 and a second locking hole 32 that cooperate with the hook 21 and the first locking hole 22. The connector cover 2 and the socket body 11 can be initially fixed by the cooperation of the hook 21 and the slot 31, and the arrangement of the first locking hole 22 and the second locking hole 32 allows the lock to be inserted to fix the connector cover 2 and the socket body 11.

[0039] The mounting plate 3 is provided with an annular receiving groove in an annular shape on one side close to the connector cover 2, and an annular rubber ring 33 is provided in the annular receiving groove, and the center of the annular rubber ring 33 coincides with the center of the open end of the female connector body 11. The provision of the annular rubber ring 33 can effectively prevent foreign impurities such as dust and water vapor from entering the female connector, thereby protecting the normal operation of the internal components of the female connector 1.

[0040] A screw rod 16 is disposed at one end of the female socket body 11 away from the opening of the female socket body 11 , and the screw rod 16 is connected to the bottom of the external terminal 12 .

[0041] refer to Figure 3 , Figure 4 as well as Figure 5 As shown, a plurality of heat-conducting sheets 17 are arranged on the inner wall of the first accommodating cavity 14 through heat-dissipating silicone grease and a snap assembly, and a heat-dissipating assembly is arranged on the outer wall of the female seat body, and the heat-dissipating assembly includes a circular heat-dissipating substrate covering the outer wall of the female seat body and a plurality of heat-dissipating protrusions 19 arranged in an annular manner on the outer side of the circular heat-dissipating substrate 18. The heat-conducting sheet 17 is a heat-conducting silicone sheet, a graphite heat-conducting sheet or a phase-change heat-conducting pad.

[0042] By setting the heat-conducting sheet 17, the heat inside the female connector 1 can be effectively absorbed and conducted to the outer surface of the female connector 1, thereby helping to achieve the heat dissipation effect of the female connector 1. At the same time, by using a circular heat dissipation substrate 18 and a ring-arranged heat dissipation protrusion 19 structure on the heat dissipation component outside the female body 11, the heat dissipation surface area is effectively increased, the heat dissipation efficiency is improved, and it is helpful to quickly dissipate the heat generated inside the male connector 2 when plugging the female connector 1, thereby effectively reducing the working temperature of the connector. At the same time, the setting of the heat dissipation protrusion 19 also plays a non-slip role when the female connector 1 is installed. Therefore, this connector with efficient heat dissipation can effectively disperse the heat generated inside the connector, extend the service life of the connector, and improve the reliability and stability of the product.

[0043] Among them, a mesh groove 20 is provided on one side of the annular heat dissipation substrate 18 away from the female seat body 11. In the present application, the mesh groove 20 is provided by recessing a plurality of holes on the surface of the annular heat dissipation substrate 18. Through the provision of the mesh groove 20, the air flow channel can be increased, so that the surrounding cold air can more easily enter the surface of the heat dissipation substrate, effectively taking away the heat on the heat dissipation substrate, thereby enhancing the heat dissipation performance of the connector.

[0044] refer to Figure 6 and Figure 7 As shown, the male connector 5 includes a male body 51 and a metal terminal 52, a first metal sleeve 53, and a second metal sleeve 54 which are sequentially connected and arranged in the male body 51; one end of the metal terminal 52 is open and extends to the other opposite end to be provided with a third accommodating cavity 55.

[0045] When the male connector 5 is inserted into the female 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, and the outer wall of the metal terminal 52 abuts against the inner wall of the second accommodating cavity 15; the male socket body 51 is sleeved on the outer terminal 12, and the male socket body 51 abuts against the inner wall of the first accommodating cavity 14, thereby realizing the plug-in connection between the male connector 5 and the female connector 1.

[0046] The detection assembly 6 is arranged on the female socket body 11, and the detection assembly includes a temperature detection circuit 61, a travel switch 62 and an MCU interface; the output end of the temperature detection circuit 61 is electrically connected to the MCU interface through the travel switch 62; and the MCU interface is selectively electrically connected to an external MCU; the temperature detection circuit 61 is used to measure and collect temperature data of the female socket connector 1; the travel switch 62 is used to control the on and off of the temperature detection circuit, and the travel switch 62 includes a button 621 that controls the connection or disconnection of the travel switch 62 by pressing, and the button 621 is arranged on the inner wall of the first accommodating cavity 14. In this embodiment, part of the circuits and components of the detection assembly are located in a detection box that is detachably mounted on the mounting plate 3, and the MCU interface is arranged on a side of the detection box that contacts the outside.

[0047] When the male connector 5 is inserted into the female connector 1, the male body 51 is sleeved on the outer terminal 12, and the male body 51 abuts against the inner wall of the first accommodating chamber 14, and the button 621 is pressed, so that the travel switch 621 is turned on and the temperature detection starts; the MCU can also detect the change of the switch signal of the travel switch 62 to determine the plug-in status of the male connector 5 and the female connector 1. When the male connector 5 is pulled out of the female connector 1, the male body 51 is separated from the inner wall of the first accommodating chamber 14, so that the button 621 is reset, the travel switch 62 is disconnected, and the temperature detection stops.

[0048] Among them, reference Fig. 9As shown, the travel switch 62 also includes a contact spring assembly connected to the button 621; the contact spring assembly is built into the inner wall of the first accommodating cavity 14; and the contact spring assembly includes an insulating base 622, and the insulating base 622 is fixedly connected to a shell 623 on the side away from the inner wall of the first accommodating cavity 14, and a mounting seat 624 and a spring seat 625 are provided in the shell 623; the insulating base 622 and the mounting seat 624 are both hollow structures, and the insulating base 622 is filled with heat insulating material, and the mounting seat 622 is filled with heat conductive material 632; and the insulating base 622 is filled with heat insulating material 626; the button 621 is movably arranged on the insulating base The base 622 is connected to the mounting base 624, and an insulating layer is provided on the button 621; a spring slot 627 is provided on the mounting base 624 away from the button 621, and a plurality of conductive sheets 628 are embedded on the mounting base 624 on both sides of the spring slot 627; a spring guide column 629 and a plurality of spring sheets 630 corresponding to the conductor 628 are provided on the spring seat 625, and a spring 631 is sleeved on the spring guide column 629, and the end of the spring 629 away from the spring seat 625 is in close contact with the inner wall of the spring slot 627, and the conductor 628 is electrically connected to the temperature detection circuit 61, and the spring sheet 630 is electrically connected to the MCU interface. Among them, the setting 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 safety of the travel switch 62. At the same time, the insulating material filled in the hollow insulating base 622 isolates the heat from the high-temperature parts of the travel switch 62, greatly reducing the heat transferred to the inside of the travel switch 62; the thermal conductive material 632 filled in the mounting base 622 dissipates the small amount of heat that enters the interior of the travel switch 62 to the outside of the travel switch 62, 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 contact spring assembly, and meeting application requirements.

[0049] 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, driving the mounting seat 634 to move downward together, and compressing the spring 631 on the spring guide column 629. As the spring 631 is compressed, the spring 630 on the spring guide column 629 starts to contact the conductor 628, and finally conducts to form a circuit path, thereby achieving the closure of the contacts of the travel switch 62. When the male connector 5 is pulled out of 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 spring 630 to separate from the conductor 628, disconnects the circuit path, and the contacts of the travel switch 62 return to the disconnected state.

[0050] refer to Figure 8 As shown, the temperature detection circuit 61 includes a first resistor, a capacitor and a thermistor; the thermistor is arranged on the outer wall of the external 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.

[0051] When the female connector 1 is working, the temperature will rise accordingly. The thermistor set on the outer wall of the external terminal 12 can instantly sense the temperature change inside the female connector 1, so that the resistance value of the thermistor changes with the temperature. The MCU reads the voltage value across the thermistor through the ADC module and converts the analog signal into a digital signal. Then the MCU can convert the digital signal into the actual temperature value according to a preset algorithm or table lookup method. In this embodiment, the thermistor is an NTC thermistor.

[0052] The female socket body 11 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 to the MCU respectively; the MCU controls the switch of the buzzer according to the temperature data obtained by the temperature detection circuit 12, and controls the on and off of the indicator light according to the on or off state of the travel switch.

[0053] When the MCU compares the acquired temperature value with its built-in preset temperature threshold, when the temperature exceeds the preset temperature threshold, the buzzer sends a first alarm message to warn the user to check the connector usage status. 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 switch signal of the travel switch 62 and control the indicator light to light up.

[0054] A through hole 7 is provided through the middle of the side of the female socket body 11, and a micro switch for controlling the on and off of the power supply of the female socket connector 1 is connected to the through hole 7; 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 62.

[0055] refer to Fig.10 As shown, the present invention further provides a smart emergency power connector detection method, which is applicable to a smart emergency power connector as described above, and includes: steps S1 to S3.

[0056] Specifically, step S1: insert the male connector 5 into the female connector 1, turn on the travel switch 62, so that the temperature detection circuit 61 starts to detect and collect temperature data.

[0057] Step S2: Obtain the current temperature T of the female 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 current temperature of the female connector 1 is too high, and a first alarm message is issued; if the temperature T is greater than or equal to the second preset temperature, it is judged 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 message is issued; wherein, the second preset temperature threshold is greater than the first preset temperature threshold.

[0058] By real-time monitoring of the temperature T, it is possible to quickly identify whether the female connector 1 is overheated when the male connector 5 is plugged into the female connector 1, thereby promptly issuing a first alarm message to remind the user or manager to take measures to avoid potential safety hazards. When the temperature T exceeds a higher second preset temperature threshold, the automatic power disconnection function ensures that the female connector will not continue to work at a dangerously high temperature, effectively preventing equipment damage and safety accidents.

[0059] The specific steps of the temperature detection circuit 66 collecting temperature data are as follows: 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.

[0060] S22: Obtain the reference voltage V of the current temperature detection circuit according to the ADC value 1 , and based on the reference voltage V 1 Get the current resistance value R of the thermistor T ; The reference voltage V 1 The calculation formula is: V 1 =(D adc ×2 n )×V 2 ; 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; V 2 Indicates the working voltage; R 1 represents the resistance value of the first resistor.

[0061] S23: 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: Among them, the T 0 Indicates the preset reference temperature; R 0 Indicates the preset reference temperature T 0 Corresponding thermistor value; B represents the B value coefficient of the thermistor.

[0062] S3: Collect and record the temperature of the female connector at different time points, and then generate a corresponding first time-temperature curve according to the corresponding relationship between the temperature and time, and determine the heat dissipation status of the female connector according to the first time-temperature curve.

[0063] The female connector 1 will generate a certain amount of heat during operation. Excessive temperature may cause damage to the internal components of the female connector 1 of the device, and even affect the use of the male connector 5 plugged with it, thereby affecting the normal operation of the device. At the same time, the high or low external temperature will directly affect the normal use of the connector. Therefore, in normal operation, a heat dissipation component will be set inside the female connector 1, and some external radiators will be used to dissipate heat for the female connector 1. Since the heat dissipation effect of the heat dissipation component will be reduced due to long-term use, use failure, damage or other reasons, the heat dissipation conditions provided by the external radiator may not meet the current heat dissipation requirements, and the external temperature will also directly affect the heat dissipation effect; therefore, it is necessary to monitor the heat dissipation state of the female connector 1 to ensure that it is operating in a normal heat dissipation state, promptly discover and deal with heat dissipation problems, prevent the occurrence of failures of the female connector 1, extend the overall service life of the connector and improve the safety of use.

[0064] Wherein, step S21 is further included between steps S2 and S3:

[0065] Whether it is necessary to perform heat dissipation status monitoring processing on the female connector is determined based on the number of first alarm messages or the number of second alarm messages generated within the preset number of times the travel switch is turned on (i.e., the number of times the female connector 1 works), and when heat dissipation status monitoring processing is required, a heat dissipation status monitoring signal is generated to the MCU, and the MCU executes the step S3 based on the heat dissipation status monitoring signal.

[0066] Checking the heat dissipation status of the female connector 1 at any time will increase the workload of the MCU, causing data redundancy and waste of resources, so the heat dissipation status only needs to be checked when necessary. When the first alarm message is generated too many times or the second alarm message is generated, it means that there is a serious problem with the heat dissipation of the female connector 1 during operation, so it is necessary to monitor the heat dissipation status of the female connector 1 to promptly detect abnormal heat dissipation of the female connector 1. Among them, in this embodiment, the preset number of conduction times of the travel switch is 4. When the number of the first alarm message is greater than or equal to 3 or the number of the second alarm message is greater than or equal to 1, it is determined that the heat dissipation status of the female connector needs to be monitored.

[0067] Specifically, the step S3 is as follows:

[0068] Step S31: cyclically collecting and recording the temperature of the female connector 1 at different time points, and generating and updating a first time-temperature curve according to the corresponding relationship between the temperature and time.

[0069] Step S32: After the female connector 1 runs for a predetermined time, the slope of the first time-temperature curve of the current female connector 1 within the preset time is obtained at every preset time.

[0070] When the slope of the curve exceeds the preset slope threshold, it is determined that the heat dissipation state is abnormal and an early warning message is issued. The heat dissipation state abnormality includes the heat dissipation state abnormality caused by poor environmental heat dissipation and the heat dissipation state abnormality caused by poor heat dissipation of the female connector 1.

[0071] Step S33: When the male connector 5 is unplugged from the female connector 1, the travel switch 62 is disconnected, the temperature data collection of the temperature detection circuit 61 stops, and the updating of the first time-temperature curve stops.

[0072] 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. In the time-temperature curve generated under normal heat dissipation conditions, the temperature tends to be stable after reaching a certain value. Therefore, after the female connector 1 runs for a predetermined time, the slope of the curve within the preset time is obtained every preset time. When the slope of the curve exceeds the preset slope threshold, it indicates that the temperature rises rapidly in a short time, and the possibility of poor heat dissipation or internal failure can be judged. Timely issuance of early warning information can help maintenance personnel respond quickly to prevent damage to the female connector 1 or safety problems. Through continuous monitoring of the heat dissipation status, timely intervention and repair of heat dissipation problems can avoid connector failures caused by overheating, and ensure that the female connector 1 and the male connector 5 operate within an appropriate temperature range, thereby maintaining the stability and reliability of the connector.

[0073] Preferably, the intelligent emergency power supply connector detection method also includes step S4: obtaining the working environment temperature of the female connector. When the heat dissipation state of the female connector obtained in step S3 is abnormal, the heat dissipation of the female connector is controlled based on the working environment temperature until the heat dissipation state returns to normal.

[0074] According to the working environment temperature, it can be preliminarily determined whether the abnormality in the heat dissipation state is mainly caused by poor environmental heat dissipation or by poor heat dissipation of the female connector 1. When the working environment temperature is higher than the normal working environment temperature, it can be preliminarily determined that the cause of the abnormal heat dissipation state is poor environmental heat dissipation, and then the environmental heat dissipation conditions can be improved first; after the environmental heat dissipation conditions are improved, if the abnormal heat dissipation state still exists, it can be considered that the female connector 1 has poor heat dissipation; the internal heat dissipation components of the female connector 1 should be checked and replaced until the heat dissipation state of the female connector 1 returns to normal.

[0075] Example 2

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

[0077] Step S301: Under standard temperature, collect and record the temperature of the female connector 1 at different time points within a preset period, and generate a corresponding first time-temperature curve according to the corresponding relationship between the temperature and time.

[0078] Step S302: Obtain the first time-temperature curve generated by the female connector 1 when it works n times, and fit the first time-temperature curve into a standard time-temperature curve; at the same time, obtain the second time-temperature curve of the female connector 1 in a state of lack of heat dissipation. The state of lack of heat dissipation refers to removing the heat dissipation device inside the female connector 1, such as a heat conductive 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 when working n times, a Grubbs criterion test is performed on the temperature values ​​of several first time-temperature curves in each of the time periods. If the test identifies an abnormal temperature value, the first time-temperature curve to which the abnormal temperature value belongs is eliminated, and the remaining first time-temperature curves are fitted into a standard time-temperature curve.

[0080] Step S303: Obtain the third time-temperature curve of the actual working state of the current female connector 1, and compare the second time-temperature curve and the third time-temperature curve with the standard time-temperature curve respectively, and calculate the difference value D between the second time-temperature curve and the standard time-temperature curve 1 , and calculate the difference D between the third time-temperature curve and the standard time-temperature curve 2 .

[0081] in, Among them, f(x i ) represents the standard time-temperature curve; g(x i) represents the second time-temperature curve; e(x i ) represents the third time-temperature curve, N represents the number of temperatures; x i represents the temperature value at the i-th time point;

[0082] Step S304: The difference value D 1 and the difference value D 2 Compare and obtain And judge whether the heat dissipation state is abnormal according to ΔD. Specifically, when ΔD≤20%, the heat dissipation state is set to be excellent; if 50%>ΔD>20%, the heat dissipation state is good; if 75%>ΔD≥50%, the heat dissipation state is medium; if ΔD≥75%, the heat dissipation state is poor.

[0083] By collecting temperature data at standard temperature and generating a standard time-temperature curve, a reliable benchmark is provided for evaluating the heat dissipation status of the female connector 1. Then, by comparing the difference between the heat dissipation status of the third time-temperature curve in the actual working state and the standard curve, and the difference between the second time-temperature curve in the lack of heat dissipation and the standard time-temperature curve, it is determined whether it is necessary to increase external heat dissipation or check whether the internal heat dissipation of the female connector 1 is normal, effectively preventing equipment failures caused by heat dissipation problems, and being able to promptly discover abnormal heat dissipation conditions, thereby improving the stability of connector use and extending the service life of the connector.

[0084] The above disclosures are only several preferred embodiments of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. An intelligent emergency power connector, characterized in that: include: A female connector, the female connector comprising an inner terminal, 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 a first accommodating cavity is extended to the other end opposite to the female body, and the outer terminal is arranged in the first accommodating cavity; and the outer terminal and the female body are open at the same end and a second accommodating cavity is extended to the other end opposite to the female body; the inner terminal is arranged in the second accommodating cavity; A male connector, the male connector can be detachably installed in the female connector, and the male connector includes a male body and 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 opposite to it to be provided with a third accommodating cavity; A detection component, the detection component is arranged on the female socket body, and the detection component includes a temperature detection circuit, a travel switch and an MCU interface; the output end of the temperature detection circuit is electrically connected to the MCU interface through the travel 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 travel switch is used to control the on and off of the temperature detection circuit, and the travel switch includes a button that controls the connection or disconnection of the travel switch by pressing, and 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, 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 socket body is sleeved on the outer terminal, and the male socket body abuts against the inner wall of the first accommodating cavity, and presses the button; when the male connector is pulled out of the female connector, the male socket body is separated from the inner wall of the first accommodating cavity, so that the button is reset.

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 working voltage, and 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.

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 penetrated 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: A plurality of heat conducting plates are arranged on the side wall of the first accommodating cavity, a heat dissipation assembly is arranged on the outer wall of the mother seat body, and the heat dissipation assembly 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 shape on the outside of the circular heat dissipation substrate.

5. The intelligent emergency power connector according to claim 1, characterized in that: 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 heat insulating material, and the mounting seat is filled with heat conductive material; the button is movably arranged on the insulating base and connected to the mounting seat, and an insulating layer is provided on the button; a spring groove is provided on the side of the mounting seat away from the button, and a plurality of conductive sheets are embedded on the mounting seat on both sides of the spring groove; a spring guide column and a plurality of spring sheets corresponding to the conductor are provided on the spring seat, a spring is sleeved on the spring guide column, and one end of the spring away from the spring seat is in tight contact with the inner wall of the spring groove, and the conductor is electrically connected to the temperature detection circuit, and the spring sheet is electrically connected to the MCU interface.

6. A method for detecting an intelligent emergency power connector, which is applicable to an intelligent emergency power connector as claimed in claim 2, characterized in that: include: Step S1: inserting the male connector into the female connector, turning on the travel switch, so that the temperature detection circuit starts to detect and collect temperature data; Step S2: based on the temperature data, the current temperature T of the female connector is obtained; if the temperature T is greater than or equal to the first preset temperature threshold, it is determined that the current temperature of the female connector is too high, and a first alarm message is issued; if the temperature T is greater than or equal to the second preset temperature, it is determined that the temperature of the female connector exceeds the safe use temperature, the power supply of the female connector is disconnected, and a second alarm message is issued; 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 according to the corresponding relationship between the temperature and time, and judge the heat dissipation state of the female connector according to the first time-temperature curve.

7. The intelligent emergency power supply connector detection method according to claim 6, 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 a reference voltage V1 of the current temperature detection circuit according to the ADC value, and obtain a resistance value R of the current thermistor based on the reference voltage V1 T ; The calculation formula of the reference voltage V1 is: V1=(D adc ×2 n )×V2; 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 obtained T Calculate and obtain the temperature T of the current female connector. The calculation formula of the temperature T is: Wherein, T0 represents a preset reference temperature; R0 represents a thermistor value corresponding to the preset reference temperature T0; and B represents a B value coefficient of the thermistor.

8. The intelligent emergency power supply connector detection method according to claim 6, 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 runs for a predetermined time, the slope of the first time-temperature curve of the current female connector within the preset time is obtained every preset time t; when the slope of the curve exceeds the preset slope threshold, it is determined that the heat dissipation state is abnormal, and an early warning message is issued; wherein, the abnormal heat dissipation state includes the abnormality caused by poor environmental heat dissipation and the 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 data collection of the temperature detection circuit stops, and the updating of the first time-temperature curve stops.

9. The intelligent emergency power supply connector detection method according to claim 6, characterized in that: The step S3 is specifically as follows: S301: Under a standard temperature, collecting and recording the temperature T of the female connector at different time points within a preset sampling period, and generating a corresponding first time-temperature curve according to the corresponding relationship between the temperature and time; S302: Obtain the first time-temperature curve generated when the female connector works n times, and fit the first time-temperature curve into a standard time-temperature curve; at the same time, obtain the 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, Among them, f(x i ) represents the standard time-temperature curve; g(x i ) represents the second time-temperature curve; e(x i ) 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 determine whether the heat dissipation state is abnormal based on ΔD.

10. The intelligent emergency power connector detection method according to claim 7, characterized in that: The step S21 is also 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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