GB1446044A - Soldering iron - Google Patents
Soldering ironInfo
- Publication number
- GB1446044A GB1446044A GB4327073A GB4327073A GB1446044A GB 1446044 A GB1446044 A GB 1446044A GB 4327073 A GB4327073 A GB 4327073A GB 4327073 A GB4327073 A GB 4327073A GB 1446044 A GB1446044 A GB 1446044A
- Authority
- GB
- United Kingdom
- Prior art keywords
- scr
- temperature
- diode
- sensor
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/02—Soldering irons; Bits
- B23K3/03—Soldering irons; Bits electrically heated
- B23K3/033—Soldering irons; Bits electrically heated comprising means for controlling or selecting the temperature or power
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
- G05D23/1909—Control of temperature characterised by the use of electric means using an analogue comparing device whose output amplitude can only take two discrete values
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Control Of Temperature (AREA)
Abstract
1446044 Automatic control of temperature HENSBY INVESTMENTS PTY Ltd 14 Sept 1973 [24 Nov 1972] 43270/73 Heading G3R An electric soldering iron includes an electric heating element and a resistive temperature sensing element both wound around a barrel and an automatic temperature control circuit which may be contained within the iron handle. In Fig. 1, the heater element 8 and SCR 9 are connected across an A.C. supply. The sensor 11 and a desired temperature setting resistor 12 form a voltage divider arranged to trigger the SCR 9 when the sensed temperature falls below a predetermined value. A capacitor 18 causes the divider current to lead the supply voltage S whereby the SCR will conduct when the voltage across it is relatively low - thereby to minimize radio inter- ference. Diodes 16, 17 provide ambient temperature compensation. In another embodiment Fig. 3 the sensor and setting resistor are connected in a bridge circuit. A diode 24 balances bias voltage inherent in the SCR. A diode 23 balances the effect on the bridge of the diode 24. Diodes 24 and 26 limit current through the sensor 11 when SCR 9 is ON.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/418,654 US3943326A (en) | 1972-11-24 | 1973-11-23 | Temperature control circuit for a hand held soldering tool |
FR7341743A FR2210477B2 (en) | 1972-11-24 | 1973-11-23 | |
DE2358396A DE2358396A1 (en) | 1972-11-24 | 1973-11-23 | ELECTRIC SOLDERING PISTON |
JP48131233A JPS4995846A (en) | 1972-11-24 | 1973-11-24 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPB134772 | 1972-11-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1446044A true GB1446044A (en) | 1976-08-11 |
Family
ID=3765514
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4327073A Expired GB1446044A (en) | 1972-11-24 | 1973-09-14 | Soldering iron |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1446044A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2138600A (en) * | 1980-05-30 | 1984-10-24 | Matsushita Electric Ind Co Ltd | Automatic temperature control device for an electric appliance such as an electric blanket |
US6369359B1 (en) * | 2000-11-08 | 2002-04-09 | Terry H. Morrison | Self-feeding soldering device |
WO2006136094A1 (en) * | 2005-06-24 | 2006-12-28 | L Lab Corporation | A quick temperature compensation method for an electric soldering iron and a quick temperature compensable electric soldering iron |
CN104384654A (en) * | 2014-11-10 | 2015-03-04 | 王志 | Fast-temperature-rise electric soldering iron power supply socket |
-
1973
- 1973-09-14 GB GB4327073A patent/GB1446044A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2138600A (en) * | 1980-05-30 | 1984-10-24 | Matsushita Electric Ind Co Ltd | Automatic temperature control device for an electric appliance such as an electric blanket |
US6369359B1 (en) * | 2000-11-08 | 2002-04-09 | Terry H. Morrison | Self-feeding soldering device |
WO2006136094A1 (en) * | 2005-06-24 | 2006-12-28 | L Lab Corporation | A quick temperature compensation method for an electric soldering iron and a quick temperature compensable electric soldering iron |
CN100431762C (en) * | 2005-06-24 | 2008-11-12 | 深圳斯贝克动力电子有限公司 | Electric soldering iron temperature fast-compensation method and electric soldering iron capable of fast realizing temperature compensation |
CN104384654A (en) * | 2014-11-10 | 2015-03-04 | 王志 | Fast-temperature-rise electric soldering iron power supply socket |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |