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Electric iron

An electric soldering iron and circuit technology, applied in the direction of soldering iron, metal processing equipment, manufacturing tools, etc., can solve the problems that can not really save electric energy, increase operation actions, etc.

Inactive Publication Date: 2007-09-05
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the technical solutions disclosed in the above-mentioned patents, a manual button is used to disconnect the power supply. This method not only adds additional operation actions, but also may forget to disconnect the power supply due to the negligence of human operations, which cannot really save power. the goal of

Method used

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Embodiment Construction

[0009] As shown in Fig. 1, the structure diagram of the electric soldering iron in the first embodiment, the electric soldering iron 1 in this embodiment includes a power switch 11, a constant temperature heating circuit 12, a micro switch 13, a delay relay 14, a variable Pressure unit 15, a heating tube 16 and a current limiting resistor 17. The voltage transformation unit 15 provides adaptive power for the delay relay 14, and the voltage transformation unit may be a transformer or a resistor. The micro switch 13 is connected between the transformer unit 15 and the relay 14. In another embodiment, the micro switch 13 is placed on a soldering iron bracket and connected to the soldering iron 1 through wires. The delay relay 14 includes a switch 141 , and the switch 141 is between the constant temperature heating circuit 12 and the power supply 10 . When the user picks up the electric soldering iron and starts to use it, the power switch 11 is closed, and the micro switch is in...

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Abstract

An electric iron able to automatically cut off power supply when it is not used for soldering for a certain time is composed of constant-temp heating circuit, heating tube, microswitch, current-limiting resistor, delay relay, transformer unit, and power switch.

Description

【Technical field】 [0001] The invention relates to an electric soldering iron, in particular to an energy-saving electric soldering iron which can automatically cut off the power supply. 【Background technique】 [0002] Once the common electric soldering iron is powered on, the heating tube is always in working condition, but the actual welding time is much shorter than the power-on time, because after a component is soldered, it is necessary to continue to select components or find faults. This not only causes waste of energy but also makes it difficult to hang tin because of the continuous high temperature of the electric soldering iron tip, which brings difficulties to welding. The above defects are all caused by the unreasonable design and structure of the current electric soldering iron. Some improvements have also occurred at present, representative for example: the Chinese patent No. 97248086.2 announced on May 26, 1999, and the Chinese patent No. 98217158.7 announced ...

Claims

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Application Information

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IPC IPC(8): B23K3/03
Inventor 翁世芳张军
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD