CN210702987U

CN210702987U - Electric soldering iron

Info

Publication number: CN210702987U
Application number: CN201921778602.4U
Authority: CN
Inventors: 吕登科
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-06-09
Anticipated expiration: 2029-10-22

Abstract

The utility model belongs to the technical field of electric soldering iron, in particular to an electric soldering iron which comprises a handle and a heating part arranged on the handle, wherein the handle is provided with a heating circuit used for controlling the heating part to heat, the heating circuit comprises a main control chip for controlling the working state of the heating part, a control button electrically connected with the main control chip and a temperature detection module, the working state comprises a closing state and a heating state, the heating state comprises a plurality of groups of different heating temperatures, the control button controls the heating part to switch between the closing state and the heating state or between different heating temperatures through the main control chip, when heating portion was in the heating state, main control chip and temperature detection module control heating portion temperature kept the heating temperature who sets for at control button, the utility model aims at providing an electric iron that facilitates use.

Description

Electric soldering iron

Technical Field

The utility model belongs to the technical field of electric iron, refer in particular to an electric iron.

Background

The electric soldering iron is a necessary tool for electronic manufacturing and electric appliance maintenance, and mainly used for welding elements and leads, the elements of consumer electronics in life adopt a surface mounting process, the elements are small in size, high in integration, fine in printed circuit and small in bonding pad, if the electric soldering iron is not properly selected, artificial faults such as false soldering, short circuit and overtemperature damage to an integrated circuit or even a damaged circuit board are easily caused in the welding process, the traditional electric soldering iron directly adopts alternating current as a power supply and does not need a control switch, most of the electric soldering irons on the market at present have the temperature adjustment of a knob switch, the temperature of the electric iron is controlled by the knob, the knob controls the temperature of the electric iron by controlling the current in the circuit through an adjustable resistor, the structure is simple, the convenience and the flexibility are realized, but the temperature of the electric soldering iron is unstable due to the change of the working environment of heating the electric, the knob switch needs to be frequently adjusted, and the condition that the circuit board is damaged by welding is easy to occur. The table type electric soldering iron which adopts a power frequency transformer for voltage reduction and temperature regulation is commonly used in the market, and the heavy power frequency transformer is adopted, so that the table type electric soldering iron is inconvenient to carry and occupies a large amount of table surface.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art and the problems of the prior art, the utility model provides an electric soldering iron which is convenient to use.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an electric iron, includes handle and the heating portion of setting on the handle, is provided with the heating circuit who is used for controlling the heating of heating portion on the handle, heating circuit includes the main control chip who controls heating portion operating condition, control button and the temperature detection module of being connected with the main control chip electricity, operating condition includes off-state and heating state, contains the different heating temperature of a plurality of groups in the heating state, and control button passes through main control chip control heating portion and switches between off-state and heating state, or between the different heating temperature, and when heating portion was in the heating state, main control chip and temperature detection module control heating portion temperature keep at the heating temperature that control button set for.

Preferably, the control button is an A-type contact switch, a switch detection unit for detecting the state of the control button is arranged on the main control chip, and when the switch detection unit detects that the control button is triggered in a short time, the main control chip controls the heating part to circularly switch in the gear-up direction between different heating temperatures; when the switch detection unit detects that the control button is triggered for a long time, the main control chip controls the heating part to circularly switch in a downshifting direction between different heating temperatures; when the switch detection unit detects that the control button is triggered for a long time, the main control chip controls the heating part to switch between a heating state and a closing state.

Preferably, the main control chip is provided with a data storage unit for storing the final heating temperature before the heating part is turned off, and when the heating part is turned from the heating state to the heating state or power is cut off and power is supplied again, the main control chip controls the final heating temperature before the heating part is turned to the heating state according to the data storage unit.

Preferably, the main control chip is provided with an alarm unit, and when the main control chip judges that the temperature detected by the temperature detection module is abnormal compared with the heating temperature memorized by the data memory unit, the alarm unit gives an alarm.

Preferably, the heating circuit is a zero-crossing trigger temperature control circuit, and a zero-crossing detection unit is arranged on the main control chip.

Preferably, the heating state includes six heating temperatures of 200 ℃, 250 ℃, 300 ℃, 350 ℃, 400 ℃ and 450 ℃.

Preferably, a plurality of indicating lamps corresponding to different heating temperatures are arranged on the handle, and marks corresponding to the indicating lamps are arranged on the handle.

Preferably, the indicator lamps are arranged at intervals along the length direction of the handle.

Preferably, the indicator lights are distributed on the handle in a ring shape.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

(1) the utility model discloses the work operating condition of well heating portion includes the different heating temperature of a plurality of groups, and keep at the temperature of settlement through main control chip and temperature detection module control heating portion, the condition that appears electric iron stability in avoiding the use and too high or low excessively takes place, and the different heating temperature of a plurality of groups sets up the user of facilitating the use memory, the user of facilitating the use summarizes the work experience, thereby form the operation standard and then popularize and apply, the new hand's of being convenient for quick study, and in this application through control button control heating portion between closed condition and heating state, or change between the different heating temperature, the user of facilitating the use controls the regulation.

(2) The utility model discloses in control button is A type contact switch, and through triggering for a long time and short time trigger realize between off-state and the heating state, or the conversion between the different heating temperature, only control the electric iron through single switch, moreover, the steam generator is simple in structure, the person of facilitating the use controls the use, be provided with the data memory cell who is used for remembering final heating temperature before the off-state on the main control chip, when heating portion from off-state when changing over to the heating state or when the outage is reexpowed, main control chip is according to data memory cell control heating portion and is changed over final heating temperature before the off-state, when the user starts the electric iron from the off-state, the operating condition automatic recovery of electric iron is to the heating temperature before the off-state, the.

(3) The utility model is characterized in that the main control chip is provided with an alarm unit, when the main control chip judges that the temperature detected by the temperature detection module is abnormal compared with the heating temperature memorized by the data memory unit, the alarm unit gives an alarm to avoid the abnormal temperature of the heating part caused by the fault, thereby influencing the welding effect of the electric iron; the heating circuit is a zero-crossing trigger temperature control circuit, a zero-crossing detection unit is arranged on the main control chip, and the zero-crossing trigger circuit is favorable for preventing higher harmonics from interfering with the circuit and a power grid, and avoiding the higher harmonics from polluting the power grid and interfering with electric appliances in the power grid.

(4) The utility model discloses in be provided with a plurality of pilot lamps that correspond with different heating temperature on the handle, and be provided with the sign that corresponds with the pilot lamp on the handle, simple structure, the heating temperature when the person of facilitating the use judges the use, and the person of facilitating the use uses.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a circuit diagram of the electric soldering iron of the present invention;

fig. 3 is a circuit block diagram of the electric soldering iron of the present invention.

In the figure: 1-a handle; 2-heating part; 3-a control button; 4-indicator light.

Detailed Description

To facilitate understanding of those skilled in the art, the present invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 3, an electric soldering iron comprises a handle 1 and a heating part 2 arranged on the handle 1, wherein a heating circuit for controlling the heating of the heating part 2 is arranged on the handle 1, the heating circuit comprises a main control chip for controlling the working state of the heating part 2, a control button 3 electrically connected with the main control chip and a temperature detection module, the working state comprises a closing state and a heating state, the heating state comprises a plurality of groups of different heating temperatures, the heating state comprises six heating temperatures of 200 ℃, 250 ℃, 300 ℃, 350 ℃, 400 ℃ and 450 ℃, the control button 3 controls the heating part 2 to switch between the closing state and the heating state and between the six different heating temperatures through the main control chip, when the heating part 2 is in a heating state, the main control chip and the temperature detection module control the temperature of the heating part 2 to be kept near the heating temperature set by the control button 3.

Preferably, the control button 3 is an A-type contact switch, when the switch is not pressed, two contact points of the A-type contact switch are in a disconnected state, after the switch is pressed, the two contact points of the A-type contact switch are in a connected state, a switch detection unit for detecting the state of the control button 3 is arranged on the main control chip, and when the switch detection unit detects that the control button 3 is triggered in a short time, the main control chip controls the heating part 2 to circularly switch in the gear-up direction between different heating temperatures; when the switch detection unit detects that the control button 3 is triggered for a long time, the main control chip controls the heating part 2 to circularly switch in a downshifting direction between different heating temperatures; when the switch detection unit detects that the control button 3 is triggered for a very long time, the main control chip controls the heating part 2 to switch between a heating state and a closing state, the electric soldering iron is controlled only through a single switch, the structure is simple, and the use is convenient for a user to control. When the heating part 2 is in a heating state, a user triggers the control button 3 for a short time, the heating part 2 switches between heating temperatures, the temperature of the heating part 2 is gradually increased until the heating temperature reaches 450 ℃, and when the user continues to trigger the control button 3 for a short time, the heating temperature is changed to 200 ℃; when the heating part 2 is in a heating state, a user triggers the control button 3 for a long time, the heating part 2 switches between heating temperatures, and the temperature of the heating part 2 is gradually reduced until the heating temperature reaches 200 ℃, and when the user continues to trigger the control button 3 for a long time, the heating temperature is changed to 450 ℃.

Preferably, the main control chip is provided with a data storage unit for storing a final heating temperature before the heating unit 2 is turned off, and when the heating unit 2 is turned from the heating state to the heating state or is powered off and powered on again, the main control chip controls the final heating temperature before the heating unit 2 is turned off according to the data storage unit, for example, 1: the heating temperature of the heating part 2 before closing is 300 ℃, the control button 3 is triggered for a long time to enable the heating part 2 to be in a closing state, and when the electric soldering iron is used again, the control button 3 is triggered for a long time to enable the heating part 2 to be in a heating state until the heating part 2 is heated to be within the temperature range of 300 ℃; for example, 2: the heating temperature of the heating part 2 before power failure is 300 ℃, the heating part 2 automatically starts to work after power is turned on again until the heating part 2 is heated to the temperature range of 300 ℃, the control button 3 does not need to be triggered for a long time, and the use of a user is further facilitated.

Be provided with alarm unit on the main control chip, when the main control chip judges that the temperature that temperature detection module detected is not at the heating temperature of data memory cell memory, alarm unit sends the police dispatch newspaper, the utility model discloses be provided with the time-recorder on the preferred main control chip, after the user passes through control button 3 and confirms the heating temperature of heating portion 2, the time-recorder begins timing, after the definite time, when the main control chip judges that the temperature that temperature detection module detected compares when the heating temperature of data memory cell memory is unusual, alarm unit sends the police dispatch newspaper, for example the temperature tolerance of setting for on the main control chip is 15 ℃, after appointed heating time, if the temperature that temperature detection module detected is not in the heating temperature of data memory cell memory 15 ℃ interval, alarm unit sends the police dispatch newspaper.

The heating circuit is a zero-cross trigger temperature control circuit, a zero-cross detection unit is arranged on the main control chip, and as shown in fig. 2, the heating circuit is a zero-cross trigger temperature control circuit driven by the silicon controlled drive unit.

Preferably, be provided with a plurality of pilot lamps 4 that correspond with different heating temperature interval on the handle 1, and be provided with the sign that corresponds with pilot lamp 4 on the handle 1, preferred sign is the figure in specific temperature interval, is provided with six pilot lamps 4 on the handle 1 in this embodiment, LED1-LED6 in fig. 2 promptly, pilot lamp 4 and six heating temperature interval, when heating portion 2 is in a certain heating temperature interval, its corresponding pilot lamp 4 is luminous, pilot lamp 4 can be along the upward interval setting of handle 1 length direction, also can be the annular distribution on handle 1, pilot lamp 4 sets up along handle 1 length direction interval in this embodiment.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an electric iron, includes handle (1) and sets up heating portion (2) on handle (1), is provided with the heating circuit who is used for controlling heating portion (2) heating on handle (1), its characterized in that: heating circuit includes the main control chip that carries out control to heating portion (2) operating condition, control button (3) and the temperature detection module of being connected with the main control chip electricity, operating condition includes off-state and heating state, contains the different heating temperature of a plurality of groups in the heating state, and control button (3) pass through main control chip control heating portion (2) between off-state and heating state, or change between the different heating temperature, and when heating portion (2) were in the heating state, main control chip and temperature detection module control heating portion (2) temperature keep at the heating temperature that control button (3) set for.

2. An electric soldering iron according to claim 1, characterised in that: the control button (3) is an A-type contact switch, a switch detection unit for detecting the state of the control button (3) is arranged on the main control chip, and when the switch detection unit detects that the control button (3) is triggered in a short time, the main control chip controls the heating part (2) to circularly switch in the gear-up direction between different heating temperatures; when the switch detection unit detects that the control button (3) is triggered for a long time, the main control chip controls the heating part (2) to circularly switch in a downshifting direction between different heating temperatures; when the switch detection unit detects that the control button (3) is triggered for a long time, the main control chip controls the heating part (2) to switch between a heating state and a closing state.

3. An electric soldering iron according to claim 1 or claim 2, characterised in that: the main control chip is provided with a data memory unit for memorizing the final heating temperature before the closed state, and when the heating part (2) is switched to the heating state from the closed state or is powered off and electrified again, the main control chip controls the final heating temperature before the heating part (2) is switched to the closed state according to the data memory unit.

4. An electric soldering iron according to claim 3, characterised in that: the main control chip is provided with an alarm unit, and when the main control chip judges that the temperature detected by the temperature detection module is abnormal compared with the heating temperature memorized by the data memory unit, the alarm unit gives an alarm.

5. An electric soldering iron according to claim 1, 2 or 4, characterised in that: the heating circuit is a zero-crossing trigger temperature control circuit, and a zero-crossing detection unit is arranged on the main control chip.

6. An electric soldering iron according to claim 5, characterised in that: the heating state comprises six groups of heating temperatures of 200 ℃, 250 ℃, 300 ℃, 350 ℃, 400 ℃ and 450 ℃.

7. An electric soldering iron according to claim 1 or 2 or 4 or 6 in which: the handle (1) is provided with a plurality of indicator lamps (4) corresponding to different heating temperatures, and the handle (1) is provided with marks corresponding to the indicator lamps (4).

8. An electric soldering iron according to claim 7, characterised in that: the indicator lamps (4) are arranged at intervals along the length direction of the handle (1).

9. An electric soldering iron according to claim 7, characterised in that: the indicating lamps (4) are distributed on the handle (1) in an annular shape.