CN2278557Y - Anti-electric-induction bidirectional voltage-regulating electric iron - Google Patents
Anti-electric-induction bidirectional voltage-regulating electric iron Download PDFInfo
- Publication number
- CN2278557Y CN2278557Y CN 97203782 CN97203782U CN2278557Y CN 2278557 Y CN2278557 Y CN 2278557Y CN 97203782 CN97203782 CN 97203782 CN 97203782 U CN97203782 U CN 97203782U CN 2278557 Y CN2278557 Y CN 2278557Y
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- resistance
- handle
- voltage
- electric iron
- termination
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Abstract
The utility model discloses an anti-electric-induction bidirectional voltage-regulating electric iron which is characterized in that the outer wall of a handle is provided with a metal conducting layer; a security isolation resistor is fixed in the handle; the handle is provided with two holes for an indicator light, and a voltage regulation hole; a bidirectional voltage-regulating circuit is arranged on a circuit plate in the handle; the utility model is mainly composed of a voltage-regulating part, a rectification part, a voltage indication part and a boost capacitor. The utility model has the advantages of few circuit components, light weight, small volume, and low cost. The circuit plate is directly arranged in the handle of the electric iron. The indication for the resistor and a light emitting diode can be regulated through the regulation hole. The voltage and the temperature of the electric iron can be regulated.
Description
The utility model relates to a kind of soldering appliance, but particularly a kind of anti-induced electrical, two-way pressure-adjusting type electric iron.
The present change tin electric iron that uses, basically all be old-fashioned electric iron, two outstanding shortcomings of its ubiquity: the one, solder horn has induced electricity, this makes when welding has the circuit board of MOS element, must or pull up power supply and use electric iron ground connection, be very much trouble,, cause unnecessary loss in case carelessness just makes the MOS component wear probably.The 2nd, the working voltage scope of common electrical flatiron is narrower, and 180V-240V normally is because China's electronics supply is generally not enough, the voltage of registering one's residence usually is lower than 180V, this makes everybody can feeling when using electric iron difficult, the scruff infusibility, thus had a strong impact on welding quality.
The purpose of this utility model provides a kind of electric iron, and it can anti-induced electrical, again can bidirectional modulation voltage, control simple, practical.
The purpose of this utility model realizes by the following technical solutions: described electric iron comprises a solder horn, what link to each other with solder horn is the metal heat transfer part, the flatiron handle is fixed on the rear portion of metal heat transfer part, handle is the insulating materials of hollow structure, in handle outer the layer of metal conductive layer is set, handle internal fixation one safe isolation resistance, the outer wall of one termination metal heat transfer part, other end catcher handle outer conductive layers.Handle is provided with two index lamp holes and a voltage-regulation hole, and the bidirectional pressure regulating circuit is arranged on the wiring board in the handle.
Described bidirectional pressure regulating circuit comprises controllable silicon BCR, bidirectional trigger diode D, full-bridge rectification DW, voltage indicating section and boost capacitor C, the T of controllable silicon BCR
2Termination power one end, adjustable resistance W and capacitor C
1Be parallel to the T of controllable silicon BCR after the series connection
2, T
1Two ends, the control utmost point G of bidirectional trigger diode D one termination controllable silicon BCR, another termination adjustable resistance W and capacitor C
1Interface, resistance R
1The T of one termination controllable silicon BCR
1End, another termination power other end, two input connecting resistances of full-bridge rectification DW R
1Two ends, piezo-resistance RU
1, current-limiting resistance R
2, LED
1Be composed in series voltage indication circuit, it is connected to the output two ends of full-bridge rectification DW: piezo-resistance RU
2, current-limiting resistance R
3, LED
2Be composed in series superpressure alarm indicating circuit, it is connected to the output two ends of full-bridge rectification DW.
The solder horn induced electricity then is absorbed by the body by the conductive layer of isolation resistance to the handle outer wall when holding the electric iron use.Because isolation resistance is bigger, the person got an electric shock when it can also prevent the electric leakage of contingency electric iron.Regulating circuit of the present utility model has used a controllable silicon and a capacitor to carry out bidirectional pressure regulating.When load is 20W, when supply voltage was 220V, the voltage adjustable extent was that 110-300V (direct current) load DC voltage maximum lift can be higher than virtual value more than 1/3.So electric iron still can normally use when line voltage hangs down to 130V, circuit also has voltage indication and voltage alarm function simultaneously, and it can directly show the duty of electric iron.Its regulating circuit element is few, in light weight, volume is little, cost is low, wiring board is directly installed in the handle of electric iron, regulate the resistance of adjustable resistance and the indication of light emitting diode by the adjustment hole on the handle, can carry out pressure regulation, temperature adjustment to electric iron, and obtain good effect through experiment.
Below in conjunction with accompanying drawing the utility model is further described:
Fig. 1 is an overall structure schematic diagram of the present utility model.
Fig. 2 is the bidirectional pressure regulating circuit theory diagrams.
Electric iron as shown in Figure 1 comprises a solder horn 1, coupled is metal heat transfer part 2, flatiron handle 7 is fixed on the rear portion of metal heat transfer part 2, handle 7 is the insulating materials of hollow structure, outer wall at handle 7 is provided with layer of metal conductive layer 4, at handle internal fixation one safe isolation resistance 3, the outer wall of resistance 3 one termination heat transfer parts 2, the outer field conductive layer 4 of other end catcher handle, handle 7 is provided with two indicator lamp holes 5 and a voltage-regulation hole 6.The bidirectional pressure regulating circuit is arranged on the wiring board 8 in the handle 7.
Common employed 220V alternating current is actually the virtual value of alternating voltage, and alternating current also has a maximum simultaneously.Because U=Umax * 2/2, Umax=U/0.707, so when the power supply virtual value is 220V, its maximum Umax=220V/0.707 ≈ 310V.Like this, when the capacitor that load one regularly needs only at the load two ends and joint is fitted of power supply, through over commutation and to the capacitor charging, will be that the acquisition of load two ends approaches peaked DC voltage like this at the electric capacity two ends with power supply.This just equals capacitor provides direct-current working volts for load.Because electric iron belongs to pure resistive loads, so these direct-current working volts just equal the alternating voltage with virtual value.The design's that Here it is starting point, but two-way regulating circuit designed according to this starting point.
In the circuit as shown in Figure 2, it is mainly formed by regulating part, rectifying part, voltage indicating section and boost capacitor C, and the voltage regulating part branch comprises controllable silicon BCR, bidirectional trigger diode D, adjustable resistance W etc., the T of controllable silicon BCR
2Termination power one utmost point, adjustable resistance W and capacitor C
1Be parallel to controllable silicon BCR two ends after the series connection, the control utmost point G of bidirectional trigger diode D one termination controllable silicon BCR, another termination adjustable resistance W and capacitor C
1Interface, the knob of adjustable resistance W can expose from the voltage-regulation hole 6 of handle.Resistance R
1The T of a termination controllable silicon BCR
1End, a utmost point of another termination power.Resistance R
1Effect be to be used for eliminating the motorboating that phase-shifting voltages and capacitor produce, rectification circuit is a full bridge rectifier.The voltage indicating section comprises piezo-resistance RU
1, RU
2, resistance R
2, R
3, LED 1
,LED
2, piezo-resistance RU
1, current-limiting resistance R
2And LED
1Be composed in series operating voltage indication circuit, LED
1Can be set to green, work as green LED
1Normal when luminous account for voltage at rated value; Piezo-resistance RU
2, current-limiting resistance R
3And LED
2Be composed in series superpressure alarm indication circuit, LED
2Can be set to redness, work as red LED
2Account for voltage overrate when luminous.Boost capacitor C provides DC voltage for load.BFZ is an electric iron resistance.
Because circuit of the present utility model has the bidirectional pressure regulating function, when supply voltage just often, if when needing lower temperature or when needing the electric iron insulation, voltage can be turned down in rated value (green LED
1Luminous darker), can play energy-conserving action like this; When the needs higher temperature, voltage can be heightened in normal value (red LED
2Luminous), can make electric iron good like this, power increases, thereby realizes one-object-many-purposes.
Claims (2)
1, a kind of anti-induced electrical, but two-way pressure-adjusting type electric iron, comprise a solder horn (1), what link to each other with solder horn (1) is metal heat transfer part (2), flatiron handle (7) is fixed on the rear portion of metal heat transfer part (2), handle (7) is the insulating materials of hollow structure, it is characterized in that: the outer wall at handle (7) is provided with layer of metal conductive layer (4), handle (7) internal fixation one safe isolation resistance (3), the outer wall of resistance (3) one termination metal heat transfers parts (2), other end catcher handle outer conductive layers (4), handle (7) is provided with two indicator lamp holes (5) and a voltage-regulation hole (6), and the bidirectional pressure regulating circuit is arranged on the wiring board (8) in the handle (7).
But 2, anti-induced electrical according to claim 1, two-way pressure-adjusting type electric iron, it is characterized in that: described bidirectional pressure regulating circuit comprises controllable silicon BCR, bidirectional trigger diode D, adjustable resistance W, full-bridge rectification DW, voltage indicating section and boost capacitor C, the T of controllable silicon BCR
2Termination power one utmost point, an adjustable resistance W and a capacitor C
1Be parallel to the two ends of controllable silicon BCR after the series connection, the control utmost point G of bidirectional trigger diode D one termination controllable silicon BCR, another termination adjustable resistance W and capacitor C
1Interface, resistance R
1The T of one termination controllable silicon BCR
1End, another termination power one utmost point, two input connecting resistances of full-bridge rectification DW R
1Two ends, the voltage indicating section is mainly by piezo-resistance RU
1, RU
2, current-limiting resistance R
2, R
3, LED
1, LED
2Form piezo-resistance RU
1, current-limiting resistance R
2, LED
1Be composed in series voltage indication circuit, it is connected to the output two ends of full-bridge rectification DW; Piezo-resistance RU
2, current-limiting resistance R
3And LED
2Be composed in series superpressure alarm indicating circuit, it is connected to the output two ends of full-bridge rectification DW, boost capacitor C and the parallel connection of superpressure alarm indicating circuit, boost capacitor C two termination electric iron resistance R FZ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97203782 CN2278557Y (en) | 1997-01-17 | 1997-01-17 | Anti-electric-induction bidirectional voltage-regulating electric iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97203782 CN2278557Y (en) | 1997-01-17 | 1997-01-17 | Anti-electric-induction bidirectional voltage-regulating electric iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2278557Y true CN2278557Y (en) | 1998-04-15 |
Family
ID=33924525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97203782 Expired - Fee Related CN2278557Y (en) | 1997-01-17 | 1997-01-17 | Anti-electric-induction bidirectional voltage-regulating electric iron |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2278557Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784993A (en) * | 2012-08-28 | 2012-11-21 | 周芸 | Automatic constant-temperature electric soldering iron |
-
1997
- 1997-01-17 CN CN 97203782 patent/CN2278557Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784993A (en) * | 2012-08-28 | 2012-11-21 | 周芸 | Automatic constant-temperature electric soldering iron |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |