CN202907313U

CN202907313U - Automatic-control type "normal state" non-power consumption incandescent lamp life extension device

Info

Publication number: CN202907313U
Application number: CN2012204307316U
Authority: CN
Inventors: 李洪涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-08-29
Filing date: 2012-08-29
Publication date: 2013-04-24
Anticipated expiration: 2022-08-29

Abstract

The utility model provides an automatic-control type "normal state" non-power consumption incandescent lamp life extension device, which comprises a normally-open temperature switch installed in an incandescent lamp seat and an NTC negative temperature coefficient thermistor and is characterized in that: circuits of the normally-open temperature switch and the NTC negative temperature coefficient thermistor are connected in parallel and then are uniformly connected with an incandescent lamp circuit in series; a temperature sensing sheet of the normally-open temperature switch and a fixing bolt on a barrel-shaped electrode of the lamp seat are connected; and the normally-open temperature switch senses heat energy generated by the heating of the incandescent lamp to work. The automatic-control type "normal state" non-power consumption incandescent lamp life extension device has characteristics of simple installation, low cost, strong high temperature resistance, high reliability, etc.

Description

Automatic control type " normality " idle incandescent lamp device for prolonging

Affiliated technical field

The utility model relates to a kind of incandescent lamp device for prolonging, when especially after the incandescent lamp energising starts, entering normal operating conditions (normality), itself does not consume electric energy the device for prolonging circuit, and can realize automatically control, be the incandescent lamp device for prolonging that a kind of volume is little, reliability is high and the effect of lengthening the life is more satisfactory.

Background technology

Present known incandescent lamp device for prolonging has the circuit of lengthening the life, lengthen the life lamp socket and special-purpose life-increasing switch etc., purpose all is to suppress starting current in the moment of turning on light, wherein, the circuit of lengthening the life is made of electronic components such as controllable silicon, diode and electric capacity, large multicircuit relative complex, the successful though lengthen the life, but be in "on" position during work always, there is certain power consumption in the circuit itself of lengthening the life, electronic component is fragile, the circuit arrangement installation volume that is comprised of a plurality of electronic components is large again, be difficult to be put in the lamp socket go, the temperature environment in the lamp socket do not allow yet; Lengthen the life lamp socket (inside contains the circuit of lengthening the life) although circuit is relatively simple, only with compositions such as diode and thermistors, circuit can be put in the lamp socket and go, but the electronic components such as its diode are withstand voltage and the not strong factor of heat-resisting ability still exists, equally also fragile, and the circuit of lengthening the life is when working long hours, itself consume certain electric energy (power consumption can not be zero), be in for a long time the life-span that "on" position (diode and, thermistor etc.) also affects element itself; Special-purpose life-increasing switch adopts manual half mechanical control method mostly, switching by different contacts and contact, moment is accessed the incandescent lamp circuit with current-limiting resistance turning on light, although after incandescent lamp enters normal operating conditions, the life-increasing switch circuit itself does not have power consumption, but control device structure relative complex, reliability is not high, can not realize automatic control, some also is subjected to the impact of hand switch action, the time of current-limiting resistance place in circuit obviously be there are differences, and the special-purpose life-increasing switch ubiquity current limliting time is too short, filament pre-heating efficient is low and failure rate is high.In addition, also has a kind of life prolonging sheet for incandescent lamp, the circuit of lengthening the life of only connecting with incandescent lamp and consisting of by a diode, although simple in structure, need only during application long-life sheet is put into lamp socket, but flicker that the halfwave rectifier effect of diode makes incandescent lamp is apparent in view, brightness reduces, and diode is the always impact such as withstand high temperatures, high pressure also, and practicality is not strong.

Summary of the invention

Existing incandescent lamp device for prolonging complex structure, volume are large in order to overcome, poor reliability, and the deficiencies such as consumption electric energy that have own, the utility model provides a kind of automatic control type " normality " idle incandescent lamp device for prolonging, this device for prolonging itself does not consume electric energy when not only entering normal operating conditions after the incandescent lamp energising starts, and realize automatically controlling fully, volume little (easily be put in the lamp socket, become as a whole with lamp socket), filament pre-heating efficient is high, and reliability is more high.

The technical scheme that its technical problem that solves the utility model adopts is: in the lamp socket of incandescent lamp, an open type temperature switch (inner bimetallic sheet structure is set respectively, its contact disconnects during non operating state, temperature raises and to reach set point closing of contact then when above) and the NTC negative tempperature coefficient thermistor (resistance is larger under the normal temperature, temperature rising resistance decreasing, otherwise increase), unify again after both circuit parallel connections to be connected in series in the incandescent lamp circuit, set bolt on the barrel-shaped electrode of the thermal sensitive piece of open type temperature switch and lamp socket is connected, the open type temperature switch is experienced incandescent lamp and is sent out heat energy thermogenetic and come work, the NTC negative tempperature coefficient thermistor is as the incandescent lamp current-limiting resistance, when incandescent lamp is opened, electric current is increased by little gradually through the NTC negative tempperature coefficient thermistor, the filament that makes supply voltage slowly be added to incandescent lamp gets on, heavy current surge filament when effectively avoiding starting, along with Current rise, NTC negative tempperature coefficient thermistor temperature raises and resistance drops to very little, the incandescent lamp self-temperature also raises rapidly simultaneously, the thermal radiation of incandescent lamp, it is that main heated body temperature rises immediately that the heat conduction makes the barrel-shaped electrode of its root and lamp socket, the main set bolt of heat on the barrel-shaped electrode of lamp socket passes to the thermal sensitive piece of open type temperature switch, during bimetal leaf saltus step temperature value in reaching temperature switch, the demand working of temperature switch contact, make the short circuit of NTC negative tempperature coefficient thermistor, be that the NTC negative tempperature coefficient thermistor withdraws from circuit working state, thereby also prolonged the life-span of NTC negative tempperature coefficient thermistor itself, incandescent lamp energising starts and enters (normality) after the normal operating conditions, and whole device for prolonging circuit itself does not consume any electric energy.Behind the incandescent lamp power-off, along with the incandescent lamp drop in temperature, when making the temperature switch drop in temperature to set point, then the temperature switch contact disconnects and recovers normal condition, and is ready for rework next time.Heavy current surge filament when reaching establishment incandescent lamp energising startup, Extension for Incandescent Lamp Life, volume is little, simple installation, avoids adjunct circuit itself to consume the purpose of electric energy.

The beneficial effects of the utility model are: can suppress the characteristic that the incandescent lamp energising starts heavy current surge by effective application NTC negative tempperature coefficient thermistor, the heat energy that utilization produces when incandescent lamp enters normal operating conditions, make the NTC negative tempperature coefficient thermistor withdraw from "on" position by open type temperature switch control (short circuit), the circuit itself of lengthening the life this moment does not consume electric energy, only adopt thermistor and temperature switch in the adjunct circuit, both bearable environment temperature is higher, it is long that temperature switch has the life-span, operating temperature range is large, NTC negative tempperature coefficient thermistor surge inhibition is good, whole process realizes automatic control fully, because the additional circuit components volume is little, quantity is few, can be installed to and go in the incandescent lamp holder to become as a whole with it, popularizing property is stronger, has a life-span long, high and the lower-price characteristic of reliability.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is circuit theory diagrams of the present utility model.

Fig. 2 is automatic control type " normality " idle incandescent lamp device for prolonging work relationship schematic diagram.

Fig. 3 is that the installation of automatic control type " normality " idle incandescent lamp device for prolonging embodiment concerns schematic internal view (longitudinal surface).

Fig. 4 is circuit element fixing situation schematic internal view (lamp socket top cross face) in the lamp socket of automatic control type " normality " idle incandescent lamp device for prolonging embodiment.

1. incandescent lamps among the figure, 2. open type temperature switch (with the circular hole sheet metal direct insertion), 3.NTC negative tempperature coefficient thermistor, 4. the barrel-shaped electrode of incandescent lamp (band external screw thread), 5. lamp socket, 6. power lead, the 7. barrel-shaped electrode of lamp socket (band internal thread), 8. bolt A (band binding post), 9. bolt B (band binding post), 10. incandescent lamp central electrode, 11. binding posts, T. represent the heat that incandescent lamp produces, U. represents power supply (voltage).

Embodiment

As shown in Figure 1, open type temperature switch 2 is in parallel with NTC negative tempperature coefficient thermistor 3, series connection accesses incandescent lamp 1 circuit together again, and incandescent lamp 1 electric energy is provided by power supply U, represents that with the arrow dotted portion open type temperature switch 2 is controlled by the heat energy of incandescent lamp 1 generation.The design parameter of NTC negative tempperature coefficient thermistor 3 and open type temperature switch 2, to determine according to the watt level of incandescent lamp 1, NTC negative tempperature coefficient thermistor 3 resistances (under the normal temperature environment) are large as far as possible when satisfying upper current limit, time when the temperature when open type temperature switch 2 starts from experiencing incandescent lamp 1 energising plays its closing of contact can not be long, and the temperature range that conforms is the bigger the better.

As shown in Figure 2, power supply U provides electric energy by wire 6 for incandescent lamp 1 in the lamp socket 5, open type temperature switch 2 is experienced heat T (with the dotted line of the broad arrow) work that the barrel-shaped electrode 4 of incandescent lamp produces, open type temperature switch 2 is connected in series with incandescent lamp 1 circuit after forming parallel circuits with NTC negative tempperature coefficient thermistor 3 again.

In the embodiment shown in fig. 3; the power supply U upper conductor 6 of incandescent lamp 1 is connecting bolt 9 (bolt B) and binding post 11 respectively; set bolt 8 (bolt A) is connected on the barrel-shaped electrode 7 of the thermal sensitive piece of open type temperature switch 2 and lamp socket 5; and partly be coated with an amount of heat conductive silica gel (raising thermal conductivity) in Metal Contact; the insulation clearance hole of bolt 9 (bolt B) on lamp holder electrode 7 is connected with incandescent lamp central electrode 10; NTC negative tempperature coefficient thermistor 3 is fixed on the appropriate location of lamp socket 5 sidewalls; and avoid other thermal source to disturb as far as possible, circuit is connected wire maintenance insulate (being with high temperature resistant protective sleeve) between open type temperature switch 2 and the NTC negative tempperature coefficient thermistor 3.

In the embodiment shown in fig. 4, open type temperature switch 2 is placed and is fixed on the bolt 8 (bolt A), tighten with the circular hole that the set bolt 8 (bolt A) of binding post passes on open type temperature switch 2 sheet metals, NTC negative tempperature coefficient thermistor 3 is placed on lamp socket 5 sidewalls (for reducing to the greatest extent the bulb temperature impact), and wire 6 couples together circuit by binding post 11.

Claims

1. an automatic control type " normality " idle incandescent lamp device for prolonging, this device comprises an open type temperature switch and NTC negative tempperature coefficient thermistor that is contained in the incandescent lamp holder, it is characterized in that: unifiedly again after open type temperature switch and the parallel connection of NTC negative tempperature coefficient thermistor circuit connect with the incandescent lamp circuit, set bolt on the barrel-shaped electrode of the thermal sensitive piece of open type temperature switch and lamp socket is connected, and the open type temperature switch is experienced incandescent lamp and sent out heat energy thermogenetic and come work.