CN215931113U

CN215931113U - Electric iron on-line monitoring equipment

Info

Publication number: CN215931113U
Application number: CN202122249097.8U
Authority: CN
Inventors: 于仡昂; 于锡泽; 杨珺喆
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2022-03-01
Anticipated expiration: 2031-09-16

Abstract

An electric soldering iron on-line monitoring device comprises a voltage-stabilized power supply, a thermistor, an open circuit detection circuit, a temperature detection circuit, a wireless transmitting circuit, a data transmitting circuit and a receiving circuit; the thermistor is arranged at one end of the outer side of the electric soldering iron, and the open circuit detection circuit, the temperature detection circuit, the wireless transmitting circuit and the data transmitting circuit are arranged in the shell and are electrically connected with the thermistor; the receiving circuit comprises a stabilized voltage power supply A and a display sub-circuit which are electrically connected and arranged in the element box A. When this new electric iron resistance wire is opened a way, when operating temperature is unusual, can be respectively according to the different wireless signal of fault type transmission, after receiving different wireless signal, can the specific fault type of reputation suggestion staff electric iron, the staff can carry out the pertinence maintenance to the electric iron the very first time. The novel electric soldering iron real-time working condition transmission device can transmit the real-time working condition of the electric soldering iron through a wireless mobile network, and plays a favorable technical support for subsequent statistics of electric soldering iron working data of a manager.

Description

Electric iron on-line monitoring equipment

Technical Field

The utility model relates to the technical field of matching devices used by a welding mechanism, in particular to an electric soldering iron on-line monitoring device.

Background

The industrial electric iron has the characteristics of high power and high heat productivity, and is mainly used for welding parts (such as welding plastic parts), sealing (such as sealing of plastic packaging equipment) or cutting (such as cutting of plastic films) and the like. The electric soldering iron matched with the automatic unmanned operation equipment is generally positioned in an area which is inconvenient for visual observation or camera monitoring in the equipment, so that a worker cannot effectively master the working condition of the electric soldering iron, and when the electric soldering iron breaks down, the worker cannot discharge the fault at the first time, so that not only are the number of produced defective products increased, but also the working efficiency is reduced. In conclusion, the electric soldering iron monitoring device which can monitor the working condition of the electric soldering iron in real time without manual management of workers and prompt the workers to maintain at the first time when a fault occurs is particularly necessary.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects that the existing industrial electric soldering iron does not have a matched real-time detection mechanism, the fault can not be eliminated at the first time when the fault occurs, the produced defective products are increased, and the working efficiency is reduced, the utility model provides the electric soldering iron which can monitor whether the electric soldering iron is open-circuit, over-temperature or over-low temperature in real time under the combined action of related mechanisms and circuits, can prompt workers in a duty room to maintain according to fault types through wireless signals at the first time when abnormal work occurs, further reduces the number of the produced defective products as much as possible, ensures the production progress, can transmit the working condition of the electric soldering iron through a wireless mobile network in real time through the existing mature internet of things technology, and can perform follow-up statistics on working data of the electric soldering iron by a manager (for example, the manager can replace the electric soldering iron with higher power when the manager grasps that the long-term heating temperature of the electric soldering iron is not enough, on the contrary, an electric soldering iron with smaller power) has the advantages of being beneficial to technical support.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

an electric soldering iron on-line monitoring device comprises a voltage-stabilized power supply and a thermistor, and is characterized by also comprising an open circuit detection circuit, a temperature detection circuit, a wireless transmitting circuit, a data transmitting circuit and a receiving circuit; the thermistor is arranged at one end of the outer side of the electric soldering iron, and the open circuit detection circuit, the temperature detection circuit, the wireless transmitting circuit and the data transmitting circuit are arranged in the shell; the power input end of the stabilized voltage power supply is electrically connected with an alternating current power supply, the signal input end of the open circuit detection circuit is electrically connected in series between the two power input ends of the electric soldering iron and the positive power output end of the stabilized voltage power supply, and the negative power output end of the stabilized voltage power supply end is electrically connected with the negative power input end of the open circuit detection circuit; one end of the thermistor is electrically connected with the signal input ends of the temperature detection circuit and the data transmission circuit; the signal output ends of the open circuit detection circuit and the temperature detection circuit are respectively and electrically connected with the multi-path signal input end of the wireless transmitting circuit; the receiving circuit comprises a stabilized voltage power supply A and a display sub-circuit, the stabilized voltage power supply A and the display sub-circuit are installed in the element box A, and the power output end of the stabilized voltage power supply A is electrically connected with the power input end of the display sub-circuit.

Further, the open circuit detection circuit is a relay.

The temperature detection circuit comprises an adjustable resistor, a relay and NPN triodes which are electrically connected, the input ends of positive power supplies of the two relays are connected, one end of a first adjustable resistor is connected with the base of the first NPN triode, one end of a second adjustable resistor is connected with the base of the second NPN triode, the collector of the first NPN triode is connected with the input end of a negative power supply of the first relay, the collector of the second NPN triode is connected with the input end of the negative power supply of the first relay, and the emitters of the two NPN triodes are connected.

Further, the wireless transmission circuit is a wireless transmission circuit module.

Further, data transmission circuit includes electric connection's single chip module, GPRS module, resistance, and single chip module's power input both ends and GPRS module's power input both ends are connected respectively, and single chip module's signal output part and GPRS module's signal input part are connected through RS485 data line, and single chip module's signal input part and resistance one end are connected.

Furthermore, the display sub-circuit comprises a wireless receiving circuit module, a resistor, a light emitting diode, a buzzer and a controlled silicon which are electrically connected; the positive power input end of the wireless receiving circuit module is connected with the anode of the silicon controlled rectifier, wherein three power output ends of the wireless receiving circuit module are respectively connected with one end of the first resistor, one end of the second resistor and one end of the third resistor, the pulse output end of the wireless receiving circuit module is connected with one end of the fourth resistor, the other end of the fourth resistor is connected with the control electrode of the silicon controlled rectifier, the cathode of the silicon controlled rectifier is connected with the positive power input end of the buzzer, the other end of the first resistor, the other end of the second resistor, the other end of the third resistor, the anode of the first light emitting diode, the anode of the second light emitting diode, the anode of the third light emitting diode are respectively connected, and the cathodes of the three light emitting diodes and the negative power input end of the buzzer.

The utility model has the beneficial effects that: this novel open circuit detection circuitry detects electric iron resistance wire when opening a way, under thermistor combined action, temperature detection circuitry detects when electric iron operating temperature is unusual, can the very first time according to the different radio signal of fault type transmission respectively through wireless transmitting circuit, be located behind the receiving circuit in the on duty room receiving different radio signal, can give out light to the luminous diode suggestion staff specific fault type of colour through different, like this the staff can carry out the pertinence to the electric iron the very first time and maintain (the adjustable high input power supply voltage of low temperature, otherwise transfer low input power supply voltage, just change after the damage), and then reduced the wastrel quantity of assembly line production as far as possible, the production progress has been guaranteed. This novel through current ripe internet of things, can pass through wireless mobile network transmission to the real-time operating mode of electric iron through data transmission circuit, for the follow-up statistics electric iron working data of management side (for example the management side master the electric iron long-term temperature that generates heat not enough, just removable more powerful electric iron, otherwise adopt less powerful electric iron) play favourable technical support. Based on the above, the utility model has good application prospect.

Drawings

The utility model is further illustrated below with reference to the figures and examples.

Fig. 1 and 2 are schematic diagrams of the overall structure of the utility model.

Fig. 3 and 4 are circuit diagrams of the present invention.

Detailed Description

As shown in fig. 1, 2, 3 and 4, an electric soldering iron on-line monitoring device comprises a voltage-stabilized power supply a1, a thermistor RT, an open-circuit detection circuit 1, a temperature detection circuit 2, a wireless transmission circuit 3, a data transmission circuit 4 and a receiving circuit; a supporting plate 61 is welded on the upper portion of the side end of a soldering iron head of an electric soldering iron 6, a thermistor RT is installed on the inner side end of the supporting plate 61 through a screw and nut fixing clamp, a temperature sensing surface is spaced from one end of the outer side of the soldering iron head 62 by a certain distance (1 mm), a heat insulation mica sheet is arranged between the thermistor RT and the supporting plate 61, an open circuit detection circuit 1, a temperature detection circuit 2, a wireless transmitting circuit 3 and a data transmitting circuit 4 are installed on a circuit board, and the circuit board is installed in a shell 63 at the upper end of the electric soldering iron (the shell 63 and the upper end of an electric soldering iron handle 64 are integrally formed). The receiving circuit comprises a regulated power supply AA6 and a display sub-circuit 7, the regulated power supply A and the display sub-circuit are installed on a circuit board in an element box A8, and the element box A8 is installed in a workshop duty room.

As shown in FIGS. 1, 2, 3 and 4, the switching power supply A1 is a small-sized switching power supply module product of 220V/12V/20W. The open circuit detection circuit is a relay K1. The temperature detection circuit comprises adjustable resistors RP and RP2, relays K and K2 and NPN triodes Q1 and Q which are connected through circuit board wiring, wherein positive power supply input ends of the two relays K and K2 are connected, one end of the first adjustable resistor RP is connected with a base of a first NPN triode Q1, one end of a second adjustable resistor RP2 is connected with a base of a second NPN triode Q, a collector of the first NPN triode Q1 is connected with a negative power supply input end of the first relay K, a collector of the second NPN triode Q is connected with a negative power supply input end of the second relay K2, and emitting electrodes of the two NPN triodes Q1 and emitting electrodes of the two relays are connected. The wireless transmitting circuit A3 is a wireless transmitting circuit module finished product (transmitting distance 1500 m) of model SF1500, and is provided with four wireless signal transmitting keys which can transmit four different wireless signals when being pressed respectively. The data transmission circuit comprises a singlechip module A4, a GPRS module A5 and a resistor R1 which are connected through circuit board wiring, wherein two ends 1 and 2 of power input of the singlechip module A4 are respectively connected with two ends 1 and 2 of power input of the GPRS module A5, a signal output end of the singlechip module A4 is connected with a signal input end of the GPRS module A5 through an RS485 data line, and a signal input end 3 pin of the singlechip module A4 is connected with one end of the resistor R1.

As shown in fig. 1, 2, 3 and 4, the switching power supply AA6 of the receiving circuit is a finished switching power supply module product with a model of 220V/12V/50W; the display sub-circuit comprises a wireless receiving circuit module finished product A7 of a model SF1500 connected through circuit board wiring, resistors R5, R6, R7, R8, light emitting diodes VL, VL1 and VL2, a buzzer B and a silicon controlled rectifier VS; a pin 3 of a positive power output end of a switch power supply AA6 is connected with a pin 1 of a positive power input end of a wireless receiving circuit module A7 and a positive electrode of a silicon controlled rectifier VS, three power output ends 4, 5 and 6 (pins 7 are suspended) of the wireless receiving circuit module A7 are respectively connected with one end of a first resistor R5, one end of a second resistor R6 and one end of a third resistor R8, a pin 2 of a pulse output end of the wireless receiving circuit module A7 is connected with one end of a fourth resistor R7, the other end of the fourth resistor R7 is connected with a silicon controlled rectifier VS control electrode, a VS cathode is connected with a positive power input end of a buzzer B, the other end of the first resistor R5, the other end of the second resistor R6 and the other end of the third resistor R8 are respectively connected with a positive electrode of a first light emitting diode VL, a positive electrode of a second light emitting diode VL1 and a positive electrode of the third light emitting diode VL2, the three light emitting diodes VL and VL1, The cathode of the VL2 is connected with the cathode power supply input end of the buzzer B and the cathode power supply output end of the switch power supply AA6 through 4 pins; the wireless receiving circuit module A7 has two power input ends, four power output ends and a pulse output end, when any one of the four power output ends outputs power, the pulse output end will output a period of pulse power along with the time length of the received wireless signal; the power input ends 1 and 2 pins of the switch power supply AA6 are respectively connected with two poles of an alternating current 220V power supply; the light emitting surfaces of the three light emitting diodes VL, VL1 and VL2 are respectively positioned outside the three openings at the front end of the element box A.

As shown in figures 1, 2, 3 and 4, the power input end of the stabilized voltage power supply is connected with the pins 1 and 2 of a switching power supply A1, the power input end of an electric soldering iron RK (6) and the two poles of a 220V alternating current power supply through leads respectively, the signal input end of an open circuit detection circuit is connected with the positive power input end of a relay K1 in series with the pin 3 of the positive power output end of the stabilized voltage power supply A1 through leads, between two power input ends of an electric heating wire in an electric soldering iron RK, pins 3 and 4 of a power output end of a regulated power supply A1, a positive power input end of a power input end relay K of a temperature detection circuit, an emitting electrode of an NPN triode Q1, pins 1 and 2 of a power input end of a wireless transmitting circuit A3 and pins 1 and 2 of a power input end singlechip module A4 of a data transmitting circuit are respectively connected through leads, and a negative power output end of a regulated power supply A1 is connected with a negative power input end of an open-circuit detection circuit relay K1; one end of the thermistor RT is connected with a pin 3 of the positive power output end of the voltage-stabilized power supply A1 through a lead, and the other end of the thermistor RT is connected with the other ends of the adjustable resistors RP and RP2 of the signal input end of the temperature detection circuit and the other end of the resistor R1 of the signal input end of the data transmission circuit through leads; the signal output end relay K1 control contact end and the normally closed contact end of the open circuit detection circuit, the signal output end relay K control contact end and the normally closed contact end of the temperature detection circuit, the relay K2 control contact end and the normally open contact end of the temperature detection circuit A3 and three signal input ends of the wireless transmission circuit A3 are respectively connected with two contacts under a first wireless signal transmission key S1 key, two contacts under a second wireless signal transmission key S2 key and two contacts under a third wireless signal transmission key S key through leads.

As shown in fig. 1, 2, 3 and 4, after the 220 ac power enters pins 1 and 2 of the regulated power supply AA6, pins 3 and 4 of the regulated power supply AA6 will output a stable 12V dc power to the power input terminal of the wireless receiving circuit module a7, so that the wireless receiving circuit module a7 is in a power-on operating state. After the 220 AC power supply enters the pins 1 and 2 of the regulated power supply A1, the pins 3 and 4 of the regulated power supply A1 can output stable 12V DC power supply, and the output power supply enters the power input ends of the temperature detection circuit, the wireless transmitting circuit and the data transmitting circuit and also enters one end of the thermistor RT. After the voltage-stabilized power supply A1 outputs a 12V power supply, when a heating resistance wire inside an electric soldering iron RK works normally is not opened, a 12V power supply anode output by a pin 3 of the voltage-stabilized power supply A1 enters through one end of an inlet wire of the resistance wire inside the electric soldering iron RK and then flows out through the other end of the inlet wire of the resistance wire to enter a power supply input end of a relay K1, a 12V power supply cathode output by a pin 4 of the voltage-stabilized power supply A1 enters a cathode power supply input end of a relay K1, then, the relay K1 is electrified to attract a control contact end and a normally closed contact end of the relay to be opened, and then a first path of wireless closing signals cannot be emitted by a wireless transmitting circuit module A3. When the heating resistance wire inside the electric soldering iron RK is abnormal in work and is in an open circuit, the positive pole of the 12V power supply can not enter the negative power supply input end of the relay K1 any more, and then the relay K1 can not attract the control contact end and the normally closed contact end of the relay to be closed any more, and because the control contact end and the normally closed contact end of the relay K1 are connected with two contacts under the key S1 of the first wireless signal transmitting key of the wireless transmitting circuit A3 respectively, after the electric soldering iron resistance wire is opened, the wireless transmitting circuit module A3 can transmit a first wireless closed signal.

As shown in fig. 1, 2, 3 and 4, after the temperature detection circuit and the thermistor RT are powered on, the temperature sensing surface of the thermistor RT is closer to the upper end of the electric soldering iron head, so that heat emitted by the electric soldering iron RK acts on the thermistor RT, and when the temperature emitted by the electric soldering iron RK is high, the resistance value of the thermistor RT becomes smaller, and vice versa, becomes larger. In practical situations, when the heating value of the electric soldering iron is higher than a certain value (for example, higher than 300 ℃) when the electric soldering iron works normally, the resistance value of the thermistor RT is relatively small, the base voltage of a 12V power supply entering the NPN triode Q1 after being subjected to voltage reduction and current limitation by the thermistor RT and the adjustable resistor RP is higher than 0.7V, the NPN triode Q1 conducts a collector to output a low level to enter the negative power supply input end of the relay K, then the relay K is electrified to attract the control contact end and the normally closed contact end of the relay K to be open, and then the wireless transmitting circuit module A3 cannot transmit a second wireless closing signal. When the heating temperature of the electric soldering iron RK is not normal and is lower than a certain temperature (for example, lower than 300 ℃), the resistance value of the thermistor RT is relatively large, the base voltage of a 12V power supply entering the NPN triode Q1 after the thermistor RT and the adjustable resistor RP are subjected to voltage reduction and current limitation is lower than 0.7V, the NPN triode Q1 is cut off, the collector of the NPN triode Q1 does not output low level to enter the negative power supply input end of the relay K, and then the relay K is not electrified to attract the control contact end and the normally closed contact end to be closed; because the relay K control contact end and the normally closed contact end are respectively connected with the two contacts under the second wireless signal transmitting key S2 of the wireless transmitting circuit A3, the wireless transmitting circuit module A3 can transmit a second wireless closing signal after the temperature of the electric soldering iron is insufficient. In practical situations, when the heating temperature of the electric soldering iron RK is lower than a certain temperature (for example, lower than 370 ℃) when the electric soldering iron RK works normally, the resistance value of the thermistor RT is relatively large, the base voltage of a 12V power supply entering the NPN triode Q after being subjected to voltage reduction and current limitation by the thermistor RT and the adjustable resistor RP2 is lower than 0.7V, the NPN triode Q stops, the collector thereof does not output a low level and enters the negative power input end of the relay K2, the relay K2 is de-energized and does not attract the control contact end and the normally open contact end thereof to open, and then the wireless transmitting circuit module A3 does not transmit a third wireless closing signal. When the electric soldering iron RK does not work normally and the heating temperature is higher than a certain temperature (for example, higher than 370 ℃), the resistance value of the thermistor RT is relatively small, the voltage of a 12V power supply is reduced by the thermistor RT and the adjustable resistor RP2, the current is limited, then the voltage of the base electrode of the NPN triode Q is higher than 0.7V, the NPN triode Q is conducted, the collector electrode outputs low level and enters the negative power supply input end of the relay K2, and then the relay K2 is electrified to pull the control contact end and the normally open contact end of the relay K2 to be closed; because the control contact end and the normally open contact end of the relay K2 are respectively connected with the two contacts under the key of the third wireless signal emission key S3 of the wireless emission circuit A3, after the temperature of the electric soldering iron is too high, the wireless emission circuit module A3 can emit a third wireless closing signal.

As shown in fig. 1, 2, 3, and 4, when the electric soldering iron is not working normally, the wireless transmitting circuit module A3 transmits a first path or a second path and a third path of wireless closing signals, and after the wireless receiving circuit module a7 receives the first path or the second path and the third path of wireless closing signals, its 4 pins or 5 pins or 6 pins (7 pins are suspended) will output high level, and enter the positive power input terminal of the light emitting diode VL or VL1, VL2 through the resistor R5 or R6, R8 by voltage reduction and current limitation, so that the light emitting diode VL or VL1, VL2 will be powered to visually prompt the person on duty that the electric soldering iron is working abnormally (the light emitting diode VL emits light to indicate that the resistance wire RK is not powered or the internal resistance wire is not working, and the light emitting diode VL1 or VL2 emits light to indicate that the electric soldering iron is working abnormally at too low or too high temperature due to its own fault or input voltage fluctuation). Under the actual condition, no matter the 4 feet or the 5 and 6 feet of the wireless receiving circuit module output high level, 2 feet of the wireless receiving circuit module A7 can output high level pulse, the high level pulse is reduced by the resistor R7 to limit the voltage and trigger the conduction of the silicon controlled rectifier VS, the buzzer B sends a loud prompt sound, the buzzer B and the luminous light-emitting diode prompt the working abnormity of the electric soldering iron of personnel in a duty room (the input power supply of the stabilized voltage power supply AA6 is turned off, the buzzer B loses power and does not sound), therefore, the personnel can perform targeted maintenance on the electric soldering iron at the first time (the temperature is low, the input power supply voltage can be adjusted high, otherwise, the input power supply voltage is adjusted low, and the electric soldering iron is replaced after being damaged), the number of defective products in production line is reduced as much as possible, and the production progress is guaranteed.

As shown in fig. 1, 2, 3 and 4, when the electric soldering iron works, the thermistor RT generates different heat and has different resistance values along with the electric soldering iron RK, the 12V power supply enters the 3-pin analog voltage signal of the single chip module a4 after being subjected to voltage reduction and current limitation by the thermistor RT and the resistor R1, the voltage of the 3-pin signal input into the single chip module a4 due to large heat is relatively large, and the voltage of the 3-pin signal is relatively small otherwise. Through the existing mature internet of things data transceiving technology, the single chip microcomputer module A4 can convert an input analog voltage signal into a digital signal under the action of an internal circuit thereof and output the digital signal to a signal input end of the GPRS module A5; the GPRS module A5 sends out the input digital signal through the wireless mobile network; after a mobile phone of a manager or a PC in a duty room connected with the GPRS module a5 receives temperature data, a display interface of the mobile phone or the PC in the duty room displays and prompts specific temperature data of an electric soldering iron through a waveform diagram, and a subsequent manager can also query historical data, so that a favorable technical support is provided for the subsequent statistics of electric soldering iron working data of the manager (for example, the manager can know that the electric soldering iron has insufficient heating temperature for a long time, and can replace a high-power electric soldering iron, and conversely, adopt a low-power electric soldering iron) (in the technical field of internet of things, the temperature data and the like are sent to a far end, a remote smart mobile phone or the PC receives the temperature data and displays the temperature data through the waveform diagram or the number, and the subsequent manager can query the historical data which is a mature technology, and does not belong to the novel protection object, and does not do no longer work here). In this novel, although 220V alternating current power supply one utmost point can get into relay K1, temperature detection circuit, wireless transmitting circuit, data transmission circuit's voltage input one end, but the alternating current power supply another utmost point does not get into another power input of above-mentioned circuit, the alternating current power supply two poles of the earth do not form the route at relay K1, temperature detection circuit, wireless transmitting circuit, data transmission circuit, therefore 220V alternating current power supply can not act on above-mentioned circuit, and regulated power supply A1's power output 3 and 4 feet have got into above-mentioned circuit positive and negative power input simultaneously, consequently can effectively be for above-mentioned circuit power supply, and guaranteed that above-mentioned circuit normally works.

As shown in fig. 1, 2, 3, and 4, before the novel production and sizing, the resistance values of the adjustable resistors RP and RP2 need to be respectively determined, specifically, when the temperature sensing surface of the thermistor RT is close to an external adjustable temperature which is slightly lower than a heat source (e.g., 299 ℃) at 300 ℃ by 1 mm, and then the resistance value of the adjustable resistor RP is adjusted until the resistance value of the adjustable resistor RP is adjusted to a required value after the relay K loses power; in subsequent practical application, when the heating temperature of the electric soldering iron is just lower than 300 ℃, the wireless transmitting circuit module can transmit a second path of wireless closing signal. Then, the temperature sensing surface of the thermistor RT is close to an external heat source (for example 371 ℃) with adjustable temperature slightly higher than 370 ℃ for 1 mm, then the resistance value of the adjustable resistor RP2 is adjusted, and the resistance value of the adjustable resistor RP2 is adjusted to be required after the relay K2 is electrified; in subsequent practical application, when the heating temperature of the electric soldering iron is just higher than 370 ℃, the wireless transmitting circuit module can transmit a third wireless closing signal. And after the determination, the power supply is disconnected to test the resistance values of the adjustable resistors RP and RP2 respectively, the measured resistance values are the resistance values required in subsequent batch production, and before the subsequent batch production, the resistance values of the adjustable resistors RP and RP2 are directly adjusted in place without being determined again or replaced by fixed resistors with the same resistance values. In the circuit, the thermistor RT is a negative temperature coefficient thermistor of a model NTC 103D; relays K1, K, K2 are DC12V direct current relays; the resistances of the resistors R1, R5, R6, R7 and R8 are respectively 200 omega, 1.8K, 1K and 1.8K; the model of the NPN triode Q1 is 9013; the silicon controlled rectifier VS is a model MCR100-1 plastic sealed unidirectional silicon controlled rectifier; the models of the adjustable resistors RP and RP2 are 8M (the model is adjusted to 4.14M and 6.23M respectively); the light emitting diodes VL, VL1, VL2 are red, blue, yellow light emitting diodes, respectively; the buzzer B is an active continuous sound buzzer alarm finished product with the model SF 12V; the GPRS module A5 is ZLAN8100 in model, and an RS485 data input port (two power input ends and one signal input end) is arranged on a GPRS module finished product A5; the model of a main control chip of the single chip microcomputer module A4 is STC12C5A60S2, two analog signal access ends 3 and 4 pins are arranged on a finished single chip microcomputer module, and an RS485 data output port is arranged on the finished single chip microcomputer module.

While there have been shown and described what are at present considered the fundamental principles and essential features of the utility model and its advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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.

Furthermore, it should be understood that although the present description refers to embodiments, the embodiments do not include only one independent technical solution, and such description is only for clarity, and those skilled in the art should take the description as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An electric soldering iron on-line monitoring device comprises a voltage-stabilized power supply and a thermistor, and is characterized by also comprising an open circuit detection circuit, a temperature detection circuit, a wireless transmitting circuit, a data transmitting circuit and a receiving circuit; the thermistor is arranged at one end of the outer side of the electric soldering iron, and the open circuit detection circuit, the temperature detection circuit, the wireless transmitting circuit and the data transmitting circuit are arranged in the shell; the power input end of the stabilized voltage power supply is electrically connected with an alternating current power supply, the signal input end of the open circuit detection circuit is electrically connected in series between the two power input ends of the electric soldering iron and the positive power output end of the stabilized voltage power supply, and the negative power output end of the stabilized voltage power supply end is electrically connected with the negative power input end of the open circuit detection circuit; one end of the thermistor is electrically connected with the signal input ends of the temperature detection circuit and the data transmission circuit; the signal output ends of the open circuit detection circuit and the temperature detection circuit are respectively and electrically connected with the multi-path signal input end of the wireless transmitting circuit; the receiving circuit comprises a stabilized voltage power supply A and a display sub-circuit, the stabilized voltage power supply A and the display sub-circuit are installed in the element box A, and the power output end of the stabilized voltage power supply A is electrically connected with the power input end of the display sub-circuit.

2. An on-line monitoring device for an electric soldering iron as claimed in claim 1, wherein the open circuit detection circuit is a relay.

3. An electric soldering iron on-line monitoring device as claimed in claim 1, wherein the temperature detection circuit comprises an adjustable resistor, a relay and NPN triodes which are electrically connected, positive power input ends of the two relays are connected, one end of a first adjustable resistor is connected with a base of the first NPN triode, one end of a second adjustable resistor is connected with a base of the second NPN triode, a collector of the first NPN triode is connected with a negative power input end of the first relay, a collector of the second NPN triode is connected with a negative power input end of the first relay, and emitters of the two NPN triodes are connected.

4. An electric soldering iron on-line monitoring device as claimed in claim 1, wherein the wireless transmitting circuit is a wireless transmitting circuit module.

5. An electric soldering iron on-line monitoring device as claimed in claim 1, wherein the data transmission circuit comprises a single chip microcomputer module, a GPRS module and a resistor which are electrically connected, two ends of a power input of the single chip microcomputer module are respectively connected with two ends of a power input of the GPRS module, a signal output end of the single chip microcomputer module is connected with a signal input end of the GPRS module through an RS485 data line, and the signal input end of the single chip microcomputer module is connected with one end of the resistor.

6. An electric soldering iron on-line monitoring device as claimed in claim 1, wherein the display sub-circuit comprises a wireless receiving circuit module, a resistor, a light emitting diode, a buzzer and a controlled silicon which are electrically connected; the positive power input end of the wireless receiving circuit module is connected with the anode of the silicon controlled rectifier, wherein three power output ends of the wireless receiving circuit module are respectively connected with one end of the first resistor, one end of the second resistor and one end of the third resistor, the pulse output end of the wireless receiving circuit module is connected with one end of the fourth resistor, the other end of the fourth resistor is connected with the control electrode of the silicon controlled rectifier, the cathode of the silicon controlled rectifier is connected with the positive power input end of the buzzer, the other end of the first resistor, the other end of the second resistor, the other end of the third resistor, the anode of the first light emitting diode, the anode of the second light emitting diode, the anode of the third light emitting diode are respectively connected, and the cathodes of the three light emitting diodes and the negative power input end of the buzzer.