阅读说明：本技术 电子开关超温检测系统 (Electronic switch overtemperature detection system ) 是由 吴海广 于 2021-08-12 设计创作，主要内容包括：本发明公开了电子开关超温检测系统,涉及电子开关检测控制技术领域,包括温度检测模块,电压检测模块,主控制模块,散热模块、控制开关模块、通信模块；所述温度检测模块用于检测电子开关的温度,电压检测模块用于检测流出电子开关的电压情况,主控制模块用于接收和处理信号,输出控制信号和传输信号,散热模块用于散热,控制开关模块用于关断电子开关,通信模块用于与用户端进行数据传输。本发明电子开关超温检测系统通过集成电路检测电子开关温度,智能控制系统进行散热或控制电子开关停止工作,防止出现超温而导致电路故障,并对电子开关输出电压进行检测,方便查找超温的原因,提高了电子开关工作时的安全性。(The invention discloses an overtemperature detection system of an electronic switch, which relates to the technical field of detection and control of the electronic switch and comprises a temperature detection module, a voltage detection module, a main control module, a heat dissipation module, a control switch module and a communication module; the temperature detection module is used for detecting the temperature of the electronic switch, the voltage detection module is used for detecting the voltage condition flowing out of the electronic switch, the main control module is used for receiving and processing signals and outputting control signals and transmission signals, the heat dissipation module is used for dissipating heat, the control switch module is used for switching off the electronic switch, and the communication module is used for transmitting data with a user side. The electronic switch overtemperature detection system detects the temperature of the electronic switch through the integrated circuit, the intelligent control system dissipates heat or controls the electronic switch to stop working, circuit faults caused by overtemperature are prevented, the output voltage of the electronic switch is detected, the reason of the overtemperature is conveniently found, and the safety of the electronic switch during working is improved.)

1. Electronic switch excess temperature detecting system, its characterized in that:

this electronic switch overtemperature detection system includes: the device comprises a temperature detection module, a voltage detection module, a main control module, a heat dissipation module, a control switch module and a communication module;

the temperature detection module is used for detecting the temperature condition of the electronic switch and outputting a temperature signal;

the voltage detection module is used for detecting the voltage condition flowing out of the electronic switch and outputting a voltage signal;

the main control module is used for receiving signals output by the temperature detection module and the voltage detection module, outputting a control signal and transmitting a processed data signal to the communication module;

the heat dissipation module is used for receiving the control signal output by the main control module and dissipating heat of the environment;

the control switch module is used for receiving the control signal output by the main control module and turning off the electronic switch;

and the communication module is used for receiving the data signal output by the main control module and transmitting data with the user side.

2. The electronic switch over-temperature detection system of claim 1, further comprising a display module and an alarm module;

the display module is used for displaying the temperature data and the voltage data output by the main control module;

the alarm module is used for giving an alarm when the electronic switch has an overtemperature phenomenon;

the display module is connected with the sixth end of the main control module, and the alarm module is connected with the seventh end of the main control module.

3. The electronic switch over-temperature detection system of claim 2, wherein the temperature detection module comprises a temperature sensor, a first resistor, a first capacitor, and a first power supply; the primary expansion module comprises a first controller;

the first end of the temperature sensor is connected with the first power supply, the first end of the first resistor and the first end of the first capacitor, the second end of the temperature sensor is connected with the second end of the first resistor and the first IO end of the first controller, and the third end of the temperature sensor and the second end of the first capacitor are connected with the ground end.

4. The electronic switch over-temperature detection system of claim 3, wherein the voltage detection module comprises a second resistor, a third resistor, a second capacitor and a first operational amplifier;

the first end of the second resistor is connected with the output end of the electronic switch, the second end of the second resistor is connected with the first end of the third resistor, the first end of the second capacitor and the in-phase end of the first operational amplifier, the second end of the third resistor and the second end of the second capacitor are connected with the ground end together, and the inverting end of the first operational amplifier is connected with the output end of the first operational amplifier and the second IO end of the first controller.

5. The electronic switch over-temperature detection system of claim 4, wherein the heat dissipation module comprises a first switch tube, a first diode, a third capacitor and an electric fan;

the base electrode of the first switch tube is connected with the fourth IO end of the first controller, the emitting electrode of the first switch tube is grounded, the collector electrode of the first switch tube is connected with the anode of the first diode, the first end of the third capacitor and the electric fan, and the cathode of the first diode is connected with the second end of the third capacitor, the other end of the electric fan and the first power supply.

6. The electronic switch over-temperature detection system of claim 3, wherein the display module comprises a display and a fourth resistor;

the first end of the display is connected with the sixth IO end of the first controller, the second end of the display is connected with the first power supply, the third end of the display is connected with the ground end and the first end of the fourth resistor, and the fourth end of the display is connected with the second end of the fourth resistor.

7. The electronic switch overtemperature detection system of claim 3, wherein said control switch module comprises a fifth resistor, a sixth resistor, a seventh resistor, a second switch tube, a third diode, a relay and a relay contact;

the first end of the fifth resistor is connected with the third IO end of the first controller, the second end of the fifth resistor is connected with the base of the second switch tube and the anode of the second diode, the cathode of the second diode is connected with the sixth resistor, the seventh resistor and the grid of the third switch tube, the emitter of the second switch tube is connected with the other end of the sixth resistor, the drain of the third switch tube is connected with the anode of the third diode and the relay, the other end of the relay is connected with the cathode of the third diode and the first power supply, and the source of the third switch tube, the other end of the seventh resistor and the collector of the second switch tube are grounded.

8. The electronic switch over-temperature detection system of claim 3, wherein the communication module comprises an Ethernet communication chip and a user terminal;

the SCS end, the SCK end, the SDI end, the SDO end and the INT end of the Ethernet communication chip are respectively connected with the SPI serial interface of the first controller, and the RJ45 interface of the Ethernet communication chip is connected with the RJ45 interface of the user terminal.

Technical Field

The invention relates to the technical field of electronic switch detection control, in particular to an electronic switch overtemperature detection system.

Background

The electronic switch is an operation unit for realizing the on-off of a circuit by utilizing an electronic circuit and a power electronic device, and at least comprises a controllable electronic driving device, such as a thyristor, a transistor, a field effect transistor, a controllable silicon, a relay and the like. However, in the practical use process, the electronic switch mainly refers to a touch switch, an inductive switch, a voice-operated switch, a wireless switch and other wall switches.

Along with the rapid development of electronic technology and the increasing demand of people on intelligent products, the intelligent degree of electronic equipment is improved, the development and application of electronic switches are in a high-speed development stage, the electronic switches which are used as control circuits to work normally also have an important function, the quality of the electronic switches directly influences the operation quality of a circuit system, at present, the commonly used temperature detection generally adopts a manual intervention detection and maintenance method, field maintainers are required to carry equipment to check unknown faults, the reliability is poor, the detection cost is high, the working state of the electronic switches cannot be monitored in real time, and whether the electronic switches have problems cannot be known better.

Disclosure of Invention

The embodiment of the invention provides an overtemperature detection system of an electronic switch, which aims to solve the problems in the background technology.

According to an embodiment of the present invention, there is provided an electronic switch over-temperature detecting system, including: the device comprises a temperature detection module, a voltage detection module, a main control module, a heat dissipation module, a control switch module and a communication module;

the temperature detection module is used for detecting the temperature condition of the electronic switch and outputting a temperature signal;

the voltage detection module is used for detecting the voltage condition flowing out of the electronic switch and outputting a voltage signal;

the main control module is used for receiving signals output by the temperature detection module and the voltage detection module, outputting a control signal and transmitting a processed data signal to the communication module;

the heat dissipation module is used for receiving the control signal output by the main control module and dissipating heat of the environment;

the control switch module is used for receiving the control signal output by the main control module and turning off the electronic switch;

and the communication module is used for receiving the data signal output by the main control module and transmitting data with the user side.

Compared with the prior art, the invention has the beneficial effects that: the electronic switch overtemperature detection system detects the temperature of the electronic switch through the integrated circuit, utilizes the detection data intelligent control system to carry out heat dissipation and stop working, prevents the electronic switch from causing circuit faults due to overhigh temperature and even overtemperature, detects the output voltage of the electronic switch, is convenient to search for the reason of overtemperature, improves the safety of the electronic switch during working, and has higher intellectualization.

Drawings

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

Fig. 1 is a schematic block diagram of an electronic switch over-temperature detection system according to an embodiment of the present invention.

Fig. 2 is a circuit diagram of an over-temperature detection system of an electronic switch according to an embodiment of the invention.

Fig. 3 is a circuit diagram of a control switch module according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of a communication module connection according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, an embodiment of the present invention provides an electronic switch over-temperature detection system, including: the device comprises a temperature detection module 1, a voltage detection module 2, a main control module 3, a heat dissipation module 4, a control switch module 5 and a communication module 6;

specifically, the temperature detection module 1 is used for detecting the temperature condition of the electronic switch and outputting a temperature signal; the temperature detection module 1 is connected with a first end of the main control module 3;

the voltage detection module 2 is used for detecting the voltage conditions of the inflow electronic switch and the outflow electronic switch and outputting voltage signals; the voltage detection module 2 is connected with the second end of the main control module 3;

the main control module 3 is configured to receive signals output by the temperature detection module 1 and the voltage detection module 2, output a control signal, and transmit a processed data signal to the communication module 6;

the heat dissipation module 4 is used for receiving the control signal output by the main control module 3 and dissipating heat of the environment; the heat dissipation module 4 is connected with the fourth end of the main control module 3;

the control switch module 5 is used for receiving the control signal output by the main control module 3 and turning off the electronic switch; the control switch module 5 is connected with a third end of the main control module 3;

the communication module 6 is used for receiving the data signal output by the main control module 3 and transmitting data with a user side; the communication module 6 is connected with the fifth end of the main control module 3.

Furthermore, the electronic switch overtemperature detection system also comprises a display module 7 and an alarm module 8;

specifically, the display module 7 is configured to display temperature data and voltage data output by the main control module 3;

the alarm module 8 is used for giving an alarm when the electronic switch has an overtemperature phenomenon; the display module 7 is connected with the sixth end of the main control module 3, and the alarm module 8 is connected with the seventh end of the main control module 3.

In a specific embodiment, the temperature detection module 1 may employ a temperature sensor J1 to directly provide a digital signal for the main control module 3; the voltage detection module 2 can adopt a resistance voltage division method to detect voltage and carry out isolation processing through a buffer circuit, so that the interference of the main control module 3 on detection signals is avoided; the main control module 3 may adopt a single chip or a Central Processing Unit (CPU) to process and transmit data, and control the system to work; the heat dissipation module 4 can adopt a simple fan M or heat conducting glue for heat dissipation treatment; the display module 7 can display the detected temperature data and voltage data of the electronic switch by using a display U2; the communication module 6 can perform data interaction with a user by adopting an Ethernet communication mode; the alarm module 8 adopts sound and light alarm, which is not described herein.

Example 2: referring to fig. 2 and 3 based on embodiment 1, in an embodiment of the electronic switch over-temperature detecting system according to the present invention, the temperature detecting module 1 includes a temperature sensor J1, a first resistor R1, a first capacitor C1, and a first power supply + 5V; the main control module 3 comprises a first controller U1;

specifically, a first end of the temperature sensor J1 is connected to the first power supply +5V, a first end of the first resistor R1 and a first end of the first capacitor C1, a second end of the temperature sensor J1 is connected to a second end of the first resistor R1 and a first IO end of the first controller U1, and a third end of the temperature sensor J1 and a second end of the first capacitor C1 are commonly connected to the ground.

Further, the voltage detection module 2 comprises a second resistor R2, a third resistor R3, a second capacitor C2 and a first operational amplifier a 1;

specifically, a first end of the second resistor R2 is connected to the output end of the electronic switch, a second end of the second resistor R2 is connected to a first end of the third resistor R3, a first end of the second capacitor C2 and the non-inverting end of the first operational amplifier a1, and a second end of the third resistor R3 and a second end of the second capacitor C2 share the end E4 IO.

Further, the heat dissipation module 4 includes a first switch tube N1, a first diode D1, a third capacitor C3, and a fan M;

specifically, the base of the first switch tube N1 is connected to the fourth IO terminal of the first controller U1, the emitter of the first switch tube N1 is grounded, the collector of the first switch tube N1 is connected to the anode of the first diode D1, the first terminal of the third capacitor C3 and the fan M, and the cathode of the first diode D1 is connected to the second terminal of the third capacitor C3, the other terminal of the fan M and the first power supply + 5V.

Further, the display module 7 comprises a display U2 and a fourth resistor R4;

specifically, a first IO end of the display U2 is connected to a sixth IO end of the first controller U1, a second end of the display U2 is connected to +5V of the first power supply, a third end of the display U2 is connected to the ground and a first end of the fourth resistor R4, and a fourth end of the display U2 is connected to a second end of the fourth resistor R4.

Further, the control switch module 5 comprises a fifth resistor R5, a sixth resistor R5, a seventh resistor R7, a second switching tube P1, a third switching tube M1, a third diode D3, a relay K and a relay contact K-1;

specifically, a first end of the fifth resistor R5 is connected to the third IO end of the first controller U1, a second end of the fifth resistor R5 is connected to the base of the second switch tube P1 and the anode of the second diode, the cathode of the second diode is connected to the gates of the sixth resistor R5, the seventh resistor R7 and the third switch tube M1, the emitter of the second switch tube P1 is connected to the other end of the sixth resistor R5, the drain of the third switch tube M1 is connected to the anode of the third diode D3 and the relay K, the other end of the relay K is connected to the cathode of the third diode D3 and the first power supply +5V, and the source of the third switch tube M1, the other end of the seventh resistor R7 and the collector of the second switch tube P1 are grounded.

In a specific embodiment, the temperature sensor J1 can use the DS1820 temperature sensor J1 to output digital signals directly to be received by the first controller U1, so that the size of the system is greatly reduced, and the DS1820 temperature sensor J1 can connect a plurality of same temperature sensors J1 with different serial numbers in parallel on a single cable according to the needs of a user; the first operational amplifier A1 can be formed by an LM4526 operational amplifier or an OPA2333 operational amplifier to form a voltage follower, so that the buffer isolation effect is achieved, and the interference of the first controller U1 to a voltage signal is avoided; the first controller U1 can select an STM32 series single chip microcomputer as a main control chip of the system; the first switch tube N1 is an NPN-type triode, the first switch tube N1 is turned on when the first controller U1 outputs a control signal, the electric fan M starts to work, and the second switch tube P1 is a PNP-type triode for increasing the turn-off speed of the third switch tube M1 and reducing the consumption; the display U2 can select LCD to display the detection data; the third switch tube can be a Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) to control the relay K and further control the operation of the electronic switch, and the relay contact K-1 can be a normally closed switch and controlled by the relay K.

Example 3: on the basis of embodiment 1, please refer to fig. 4, in a specific embodiment of the electronic switch over-temperature detection system according to the present invention, the communication module 6 includes an ethernet communication chip and a user terminal;

the SCS end, the SCK end, the SDI end, the SDO end and the INT end of the Ethernet communication chip are respectively connected with the SPI serial interface of the first controller U1, and the RJ45 interface of the Ethernet communication chip is connected with the RJ45 interface of the user terminal.

In a specific embodiment, the ethernet communication chip may be a CH395 chip, and is directly connected to the SPI serial interface of the first controller U1 through the SPI serial interface, so that the system interface has a high transmission rate and a small number of interfaces, the SCS end, the SCK end, the SDI end, and the SDO end are all data interaction pins of the ethernet communication chip, and the INT end is a pin for determining whether the ethernet communication chip is idle; the user terminal and the Ethernet communication chip are in data transmission through a common interface RJ 45.

In the implementation of the invention, the temperature detection module 1 and the voltage detection module 2 respectively detect the temperature and the output voltage of the electronic switch, and transmit the detected data signals to the main control module 3 for receiving and processing, when the temperature is detected to be within the bearing range and exceeds the set temperature value, the main control module 3 controls the heat dissipation module 4 to dissipate heat to reduce the temperature of the electronic switch, when the temperature is brought to or exceeds the temperature value born by the electronic switch, the main control module 3 immediately controls the control switch module 5 to cut off the power supply to stop the electronic switch, the alarm module 8 is controlled to alarm, the voltage output by the electronic switch at the moment is detected by the voltage detection module 2, the temperature signal and the voltage signal are displayed by the display module 7, data transmission is carried out by an Ethernet network in the communication module 6, and the temperature signal and the voltage signal are received by the user terminal; in the temperature detection module 1, a single-cable multipoint temperature sensor J1 is adopted to detect the temperature of a plurality of electronic switches; in the voltage detection module 2, a buffer is formed by the first operational amplifier A1 to prevent signals from being interfered; in the control switch module 5, the work of the electronic switch is controlled by adopting a control mode of low power consumption and quick turn-off; in the communication module 6, the ethernet communication chip realizes data communication via ethernet based on TCP/IP (Transmission Control Protocol/Internet Protocol ) Protocol,

it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.