CN202622117U

CN202622117U - Temperature adjustable electric soldering iron

Info

Publication number: CN202622117U
Application number: CN 201220072303
Authority: CN
Inventors: 肖兰
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-01
Filing date: 2012-03-01
Publication date: 2012-12-26
Anticipated expiration: 2022-03-01

Abstract

The utility model provides a temperature adjustable electric soldering iron, which comprises a key module, a display module, a master control module, a temperature sensing module, a temperature control module and a soldering iron core, and is characterized in that the master control module is connected with the key module, the display module, the temperature sensing module and the temperature control module respectively; and the soldering iron core is also connected with the temperature sensing module and the temperature control module. According to the temperature adjustable electric soldering iron, required temperature is inputted by the key module, and the electric soldering iron is heated and electrified by 220 V alternating current through the master control module and the temperature control module; in the electrifying process, the temperature sensing module measures the temperature of the soldering iron core and feeds the temperature back to the master control module; and temperature data is displayed by the display module, and the master control module compares the temperature which is fed back with set temperature and controls the current of the temperature control module, so that the temperature of the electric soldering iron is controlled.

Description

Temperature adjustable electric flatiron

Technical field

The utility model relates to a kind of electric iron, especially a kind of temperature adjustable electric flatiron.

Background technology

As everyone knows, electric iron obtains very using widely in all trades and professions such as electronics, solder bonding metal, machine-building.The temperature of common electrical flatiron can not accurately be controlled, and in use when bigger connector is perhaps welded in the bigger zone of welding, just need then can't weld if temperature is low than higher welding temperature; But when welding the pin of integrated circuit, just need lower temperature, if too high integrated circuit or the electronic component of then very easily burning of temperature.

Summary of the invention

For gram overcomes the above problems, the utility model provides a kind of temperature adjustable electric flatiron.

The utility model provides a kind of temperature adjustable electric flatiron; Comprise key-press module, display module, main control module, TEMP module, temperature control modules, iron core; It is characterized in that: the main control module is connected with key-press module, display module, TEMP module, temperature control modules respectively, and iron core also is connected with TEMP module, temperature control modules.At first import desired temperature through key-press module, the 220V alternating current is supplied power to the iron core heating through temperature control modules through the main control module, in this process; The TEMP module is measured the temperature of iron core; And it is fed back to the main control module, through display module displays temperature data, the main control module according to the temperature that feeds back with temperature be set compare; The electric current of control temperature control modules, thereby the temperature of control electric iron.

The beneficial effect of the utility model is, because flatiron temperature is adjustable, and applicable to different occasions, and easy to use, have higher utility.

Description of drawings

Fig. 1 is the theory diagram of the utility model.

The specific embodiment

Shown in Figure 1; The utility model provides a kind of temperature adjustable electric flatiron; Comprise key-press module 1, display module 2, main control module 3, TEMP module 4, temperature control modules 5, iron core 6; It is characterized in that: main control module 3 is connected with key-press module 1, display module 2, TEMP module 4, temperature control modules 5 respectively, and iron core 6 also is connected with TEMP module 4,5 of moulds of temperature control.At first through the desired temperature of key-press module 1 input, the 220V alternating current is supplied power to the iron core heating through temperature control modules 5 through main control module 3, in this process; TEMP module 4 is measured the temperature of iron core; And it is fed back to main control module 3, through display module 2 displays temperature data, main control module 3 according to the temperature that feeds back with temperature be set compare; The electric current of control temperature control modules 5, thereby the temperature of control electric iron.

Key-press module 1 and display module 2 are made up of programmable I/O interface control chip 8255, charactron, keyboard and part peripheral circuit; The basic input and output controls of 8255 working mode selection (mode 0); Its C mouth, B mouth are made delivery outlet, are used for controlling the charactron displays temperature; The A mouth is done the input port, is used for scanning detecting rule, and the triode array amplifies the signal of PC0-PC6.Main control module 3 is made up of center processor (CPU) 8031, address latch 74373, address decoder 74139, EPROM2764, static RAM (SRAM) 6264.Wherein deposit the program machine code among the EPROM2764, static RAM (SRAM) 6264 is deposited the data in the calculating process, and the 8031st, its core component carries out arithmetical operation and logical operation etc.TEMP module 4 is made up of thermocouple, transmitter, A/D converter AD7576.AD7576 is 8 A/D converters, and its data time is 100 ns, and the temperature signal that thermocouple detects is connected to the input of AD7576 through transmitter, behind AD7576, converts data signal into and sends 8031 to.Temperature control modules 5 is made up of operational amplifier, MC14528, optocoupler, driver, bidirectional thyristor etc.Wherein amplifier, MC14528 form the synchronization zero-cross impulse circuit; IGCT can extremely be gone up trigger impulse control through IGCT control turn-on time; This trigger impulse is produced on P1.0 by 8031 usefulness softwares; After receiving the zero passage lock-out pulse synchronously, extremely go up through the control that IGCT is delivered in output with driver of optocoupler pipe, and then control the temperature of iron core.

Claims

1. temperature adjustable electric flatiron; Comprise key-press module (1), display module (2), main control module (3), TEMP module (4), temperature control modules (5), iron core (6); It is characterized in that: main control module (3) is connected with key-press module (1), display module (2), TEMP module (4), temperature control modules (5) respectively, and iron core (6) also is connected with TEMP module (4), temperature control modules (5).