CN2074082U - Electronic time-delay switch - Google Patents
Electronic time-delay switch Download PDFInfo
- Publication number
- CN2074082U CN2074082U CN90220130U CN90220130U CN2074082U CN 2074082 U CN2074082 U CN 2074082U CN 90220130 U CN90220130 U CN 90220130U CN 90220130 U CN90220130 U CN 90220130U CN 2074082 U CN2074082 U CN 2074082U
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- resistance
- delay
- pin
- time
- switch
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Abstract
The utility model belongs to an electronic time-delay switch which sets the functions of time-delay switch on or time-delay switch off by a time-delay selective switch. A timing knob and a timing display figured scale are used to set the delay time and to provide electricity or switch off the electricity of the electric apparatus when the set time is reached, effectively controlling the power of the electric apparatus. The device is provided with a power conversion circuit, a timing circuit, a switch circuit and a power export circuit. The utility model is especially suitable to the energy consumption control of the domestic apparatus like that put rice into the electric cooker before going to work and begin to cook half an hour before clocking out, ensuring that the rice has just been cooked when go home, saving time and electricity.
Description
The utility model relates to a kind of multifunctional household electronic time-delay switch, and it belongs to the electronic-controlled installation class.
In delay switch at present commonly used, the most general be that device is closed in mechanical type (Mainspring type) time-delay, closes device as the time-delay on electric fan, the washing machine, these switches, and the general control time is shorter, supporting uses such as most and washing machine.Seldom as independent power control.Along with the popularization and application of household electrical appliance, increasing family has household electrical appliance such as electric rice cooker, roaster, air-conditioning, electric blanket.How more effectively to bring into play the function of these household electrical appliances, accomplish power saving, safety again, people wish to have a kind of power control.It can satisfy people's requirement, as before going to work food is prepared, and when coming home from work, food is just in time cooked.In winter, it can be controlled the electrical equipment of electric blanket and so on and stop power supply at the fixed time, and is safe and convenient to use, saves power supply.This electronic appliance control device, domestic still do not have a report.
One of purpose of the present invention provides a kind of time-delay and connects switch, after this device energized, can power to electrical appliance at setting-up time, is specially adapted to the power supply control of class electrical appliances such as electric rice cooker, infrared baking box, electromagnetic oven.
Two of purpose of the present invention provides a kind of delay cut-off switch, cuts off the electricity supply after the time of setting, and stops to the electrical appliance power supply, is specially adapted to the power supply control of class electrical appliances such as electric rice cooker, infrared baking box, television set, electric blanket.
The utility model comprises shell and two parts of circuit board, and circuit board makes it be fixed on enclosure interior by several screws.Its outward appearance is a cuboid.Now with reference to the accompanying drawings, describe the structure of this device in detail.
Fig. 1 is the loam cake 1 of this crust of the device, and it and lower cover pass through screw.The top of loam cake is provided with regularly knob 2, timing dial 3, and power supply indicator 5, delay selection switch 4 bottoms are provided with power output socket 6.On the shell lower cover, leave some screws, power input socket and several louvres.When energized, power supply indicator is shinny.Regularly knob is used to set delay time, and the timer dial demonstrates the time that sets.The delay selection switch is a slip key type single-pole double-throw switch (SPDT), and being used to delays time out or delay time closes the selection of two kinds of functions.The power supply of power supply output plughole output is a control power supply.This device adopts plastic casing, is easy to machine-shaping, good insulation preformance.
With reference to accompanying drawing 2, be described in detail the operation principle of this circuit.The circuit board of this device comprises power converting circuit, timing circuit, switching circuit, power output circuit several sections.Power converting circuit is by power transformer 7, bridge rectifier 8, filter capacitor 9, integrated circuit (IC)
110, resistance 11 and LED power supply indication light-emitting diode 12 are formed.Power transformer through bridge rectifier, filtering and integrated circuit voltage stabilizing, becomes stable DC after the 220V alternating current is transformed to low-voltage AC.This power supply provides direct current to timing circuit, switching circuit and power output circuit.Resistance 11 is connected in IC with light emitting diode string
1Afterwards, be used to indicate the power supply situation.
Timing circuit is an integrated circuit (IC)
213, resistance 14,16,18, electric capacity 15, potentiometer 17 is formed.Integrated circuit (IC)
216 pin be connected on positive source, 8 pin connect power cathode, resistance 14 is connected on integrated circuit (IC)
212 pin and power cathode between, guarantee that circuit is in the normal timing state.Electric capacity 15 1 termination IC
29 pin, the other end connects with an end of resistance 18, potentiometer 17, another termination IC of resistance 18
211 pin, resistance 16, potentiometer 17 series connections are at IC
210 pin, form delay pulse and produce circuit.Adjust potentiometer and can set delay time, before not reaching the setting delay time, IC
23 pin be low level, reach set delay time after, IC
23 pin be high level.
Switching circuit is by resistance 19,21, and transistor 20,22 and single-pole double-throw switch (SPDT) 4 are formed. Resistance 19,21 connects the base stage of transistor 20,22 respectively, and they also are connected in IC
23 pin, single-pole double-throw switch (SPDT) is a delay selection switch, when switch places contact 23, forms the time-delay open circuit; When switch places contact 24, form time-delay and close circuit.Contact 23 connects the collector electrode of triode 20, and contact 24 connects the emitter of triode 22, and the collector electrode of the emitter of triode 20 and triode 22 connects power cathode.When reaching the time that sets, switching circuit provides an order that switches on or off power supply to power output circuit.
Power output circuit is by direct current electromagnetic relay 25, fly-wheel diode 26, and power contact 27 and power supply output plughole 6 are formed.Relay and fly-wheel diode also are connected in delay selection switch 4 and IC
1Between, when switching circuit sent control command, direct current electromagnetic relay was inhaled moving or is discharged, and the power supply of jack 6 is switched on or switched off thereupon.
Compared with prior art, this device belongs to electronic-controlled installation, and good reliability is not fragile.It is complete particularly to have function, easy for operation, energy and required advantages such as the supporting use of any household electrical appliances, it is a kind of independent product, also can be installed in the household electrical appliances, as using in electric rice cooker class device, also can save attemperator, save production cost, save electric power.
Fig. 1 is a front view of the present utility model;
Fig. 2 is a board circuit schematic diagram of the present utility model.
Embodiment: this device adopts plastic casing injection molded, and outward appearance is a cuboid.The electronic component specification is: diode is selected IN4002 type, integrated circuit (IC) for use
1, IC
2Select AN7812M and the 13K～18KCC4060A type of 3.3 μ～10 μ respectively for use, resistance 1114 resistances are respectively 2K～10K and 10K～100K, and resistance 16,18 resistances are respectively 13K～18K and 910K.Potentiometer resistance is 100K, the multiplication factor coupling of resistance 19,21 and triode, and electric current should be greater than 50mA, and relay selects for use contact current to be not less than the 5A type.The specification of electric capacity 9,15 is respectively 470U/25V and 4.7 μ/25V.The former and deputy coil voltage of transformer is than being 220V/12V.Use the former device of these specifications to install, promptly obtain described delay switch.
Claims (3)
1, a kind of electronic time-delay switch, it is made up of shell and circuit board, it is characterized in that this crust of the device loam cake 1 top is equipped with regularly knob 2, timing dial 3, power supply indicator 5, delay selection switch 4, power output socket 6 is arranged surely at the bottom, circuit board passes through screw portion in the enclosure, and the shell lower cover is equipped with attaching plug, and has screw and louvre.
2, according to the described electronic time-delay switch of claim 1., it is characterized in that this device circuit plate structure is: power supply is through transformer 7 furnishing low-voltages, by bridge rectifier, filtering, again through integrated circuit (IC)
1Voltage stabilizing obtains a stable dc power supply, integrated circuit (IC)
216 pin connect positive source 8 pin and connect power cathode, and resistance 14 is connected on IC
2Between 12 pin and the power cathode, electric capacity 15 meets IC
29 pin, resistance 16 and potentiometer series connection are at IC
210 pin, resistance 18 is connected on IC
211 pin, their threes' the other end is coupled to each other, resistance 19,21 series connections are in the base stage of transistor, both also are connected in IC
23 pin, the emitter of the collector electrode of transistor 20, transistor 22 connects power contact 23 and 24 respectively, the collector electrode of transistor 20 emitters and transistor 22 connects power cathode, relay 25 also is connected in IC with fly-wheel diode 26
1And between the delay selection switch.
3, according to claim 1. or 2. described electronic time-delay switchs, it is characterized in that this device power supply indicator adopts light-emitting diode, regularly knob is fixed on the potentiometer 17, and this device diode is selected IN4002 type, integrated circuit (IC) for use
1Or IC
2Select 3.3 μ～10 μ AN7812M or 13K～18K CC4060A type respectively for use, the resistance of resistance 11,14,16,18 is respectively 2K～10K, 10K～100K, 13K～18K, 910K, potentiometer resistance is 100K, resistance 19,21 and triode coupling make base current greater than 50mA, electric capacity 9,15 specifications are respectively 470 μ/25V, 4.7 μ/25V, and relay is selected for use contact current to be not less than 5A and got final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN90220130U CN2074082U (en) | 1990-09-06 | 1990-09-06 | Electronic time-delay switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN90220130U CN2074082U (en) | 1990-09-06 | 1990-09-06 | Electronic time-delay switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2074082U true CN2074082U (en) | 1991-03-27 |
Family
ID=4898723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN90220130U Withdrawn CN2074082U (en) | 1990-09-06 | 1990-09-06 | Electronic time-delay switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2074082U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623860A (en) * | 2012-04-23 | 2012-08-01 | 柴源 | Household timing socket |
| CN104382432A (en) * | 2014-11-06 | 2015-03-04 | 苏州爱马仕服饰有限公司 | Multifunctional heating blanket |
| CN104991484A (en) * | 2015-05-21 | 2015-10-21 | 温州安良电气有限公司 | Standby zero-power-consumption countdown timer and timing method |
-
1990
- 1990-09-06 CN CN90220130U patent/CN2074082U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623860A (en) * | 2012-04-23 | 2012-08-01 | 柴源 | Household timing socket |
| CN104382432A (en) * | 2014-11-06 | 2015-03-04 | 苏州爱马仕服饰有限公司 | Multifunctional heating blanket |
| CN104991484A (en) * | 2015-05-21 | 2015-10-21 | 温州安良电气有限公司 | Standby zero-power-consumption countdown timer and timing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |