CN87201711U - Starter of high pressure sodium lamp - Google Patents
Starter of high pressure sodium lamp Download PDFInfo
- Publication number
- CN87201711U CN87201711U CN 87201711 CN87201711U CN87201711U CN 87201711 U CN87201711 U CN 87201711U CN 87201711 CN87201711 CN 87201711 CN 87201711 U CN87201711 U CN 87201711U CN 87201711 U CN87201711 U CN 87201711U
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- CN
- China
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- utmost point
- lamp
- bimetallic strip
- wire
- model
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- Discharge Lamps And Accessories Thereof (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
The utility model discloses an external starter used for a high-pressure sodium lamp, comprising a glass housing and a bimetallic strip which is provided with three leading wires, wherein, two leading wires are fixed on the both ends of the bimetallic strip, the other leading wire is in travelling contact with one end of the bimetallic strip, and the other leading wire and the bimetallic strip are detachable; the utility model is connected in a circuit, the power supply is switched on, when the current flows through the bimetallic strip, the bimetallic strip is heated and expands to make the travelling contact switch off, and a ballast generates high voltage to make the lamp lighted. The device is characterized in that the utility model is provided with three electric poles, the bimetallic strip is heated by electric current before or after starting, and the utility model can be used for various lamps with different specifications. Besides, the utility model has the advantages of simple device, low cost and convenient replacement.
Description
A kind of starting drive that is used for gaseous discharge lamp mainly uses on high-pressure sodium lamp.
Existing many glow discharge spot lamps will make them light, and normal 220 volts of supply voltages of supply network are not all right far away, and bigger puncture voltage must be arranged, and do not need so high voltage during the lamp operate as normal.In order to address this problem, people have developed various starters.The starter that is used for high-pressure sodium lamp at present has two kinds, and a kind of is electronic starter, and it is to adopt the pulse generator of controllable silicon (SCR) device as electronic switch.(seeing the electric light source fourth phase in 1986).This starter cost is higher, about every needs 10 yuans.Also having a kind of is interior starter (seeing the light source and the illumination second phase in 1985), it is a bimetal leaf in parallel with luminous tube and a heater coil in the outer tube of high-pressure sodium lamp, its operation principle is: the bimetal leaf contact when lamp is not switched on the switch is closed, switch is connected with heater coil, whole device makes the luminous arc tube short circuit in the lamp, heater coil heating after turning on light, expand and disconnect suddenly in the bimetal leaf contact, at this moment the ballast two ends produce an induction high pressure, cause the triggering of lamp, make lamp light operate as normal.If but the moment that the bimetal leaf contact disconnects is near the zero point of current sinusoidal ripple, then ballast just can not produce enough high voltages lamp is lighted, therefore need carry out lighting the second time, because the needs of structure, the thermal capacity of starter is bigger, therefore once not carry out lighting the second time and need space-number minute, this has brought a lot of inconvenience to the user.Main is after lamp is lighted a period of time, no matter is initiatively to close and right and wrong are initiatively closed, and light a lamp and must wait bimetal leaf and lamp to be cooled to uniform temperature simultaneously in the trigger point again, makes till the bimetal leaf closure.This cooling needs 15～20 minutes, and consumers' opinions is bigger.Interior another main shortcoming that starts is that its operate as normal must lean on the heat of lamp to keep work, therefore can only be contained in the lamp, so just formed because the malfunctioning and damage of starter causes scrapping of lamp, the adverse consequences that bad starter of lamp is also scrapped has increased the spoilage of lamp and starter.
The purpose of this utility model be the one-shot rate for starter in solving low, once more start-up time the long and shortcoming that can not change, reduce the starter cost and the outer starting device a kind of simple in structure that designs.
The utility model is achieved in that a bimetal leaf and three electrode outlet lines is housed in a glass housing that vacuumizes, one end of bimetal leaf is fixing with beginning utmost point lead-in wire for the beginning utmost point, the other end is the movable contact utmost point, it is connected with movable contact utmost point lead-in wire by a soft lead-in wire, surely touch be welded with on the utmost point lead-in wire molybdenum sheet can be welded in the molybdenum sheet Elastic Contact that movable contact is extremely gone up, can clutch, it is to connect so in the line: the beginning utmost point lead-in wire of the top serial connection ballast of power supply and starting drive, surely touch the end that utmost point lead-in wire is connected on power supply, movable contact utmost point lead-in wire is connected on an end of high-pressure sodium lamp, the end of another termination power of high-pressure sodium lamp.Formed the work loop that power supply, ballast, bimetal leaf start loop and power supply, ballast, bimetal leaf, high-pressure sodium lamp like this.This device is work like this: it is to connect with the movable contact utmost point of bimetal leaf that power supply access failure predetermination is touched utmost point molybdenum sheet, behind power connection, does not have high voltage startup, and lamp work loop is obstructed.Electric current adds thrermostatic bimetal-plate by starting the loop, and bimetal leaf is expanded, and the movable contact utmost point and touching surely extremely suddenly disconnects, according to Lenz's law, and about 4000 volts of very high pulse induction voltage of ballast two ends generation.This voltage can make lamp start completely and light, and lamp starts the loop current termination after lighting work.The work loop current of lamp continues to add thrermostatic bimetal-plate, keeps off-state, to guarantee the lamp operate as normal.
Characteristics of the present utility model are that three electrodes are arranged, before lamp starts and all have electric current to flow through after starting to add thrermostatic bimetal-plate.
Below in conjunction with accompanying drawing the utility model is described in further detail:
Fig. 1 is that the utility model starts structural representation outward.
Fig. 2 is that the utility model is installed in schematic diagram on the ballast.
Among Fig. 1,1 is the vacuum glass housing; 2 is bimetal leaf; 3 is the molybdenum sheet that movable contact is extremely gone up; 4 is soft lead-in wire; 5 for touching the molybdenum sheet of extremely going up surely; 6 is electrode outlet line; L is beginning utmost point lead-in wire; A is for touching utmost point lead-in wire surely; B is movable contact utmost point lead-in wire; L is a ballast.Among Fig. 2,7 are the starting drive in the aluminum hull of being with pin of packing into, and 8 is socket.
In a glass housing 1 of having taken out vacuum, a bimetal leaf 2 is housed, bimetal leaf 2 is that its shape can be " U " shape, also can make arbitrary shape by different metal of two kinds of coefficients of expansion.One end of bimetal leaf 2 is connected and fixed with beginning utmost point lead-in wire l for the beginning utmost point, the other end is welded with molybdenum sheet 3 for the movable contact utmost point, and be connected by soft lead-in wire 4 and the movable contact utmost point B that goes between, the molybdenum sheet 3 that movable contact is extremely gone up be welded on touch surely utmost point lead-in wire A decide touch utmost point molybdenum sheet 5 and contact, can clutch, constituted whole outer starting device like this, this device is connected on uses in the circuit, when 220 volts of supply voltages were connected, lamp can not start I
2=0, electric current I
1By ballast L, bimetal leaf 2 with touch utmost point lead-in wire A surely and constitute and start the loop, work as electric current I
1When flowing through bimetal leaf 2, bimetal leaf self heating is expanded immediately, makes the molybdenum sheet 3 that movable contact extremely goes up and touch utmost point molybdenum sheet 5 surely to disconnect suddenly, according to Lenz's law, at pulse induction high pressure of ballast L two ends generation, lights high-pressure sodium lamp, at this moment, electric current I is arranged
2Generation makes the lamp operate as normal, because the movable contact utmost point and the disconnection of touching the utmost point surely, so
1=0, start loop current and stop.Characteristics of the present utility model are to have three electrodes, and making lamp start front and back all has current flow heats bimetal leaf 2.
Because this starting drive uses outside lamp, structure thermal capacity is very little again, thus no matter be initiatively to close also right and wrong initiatively to close, cool off very fast, thereby shortened the time of restarting, the one-shot time is 3～5 seconds, startup blanking time is 5～10 seconds.This device also can be packed in the aluminium cover 7 of being with pin, directly inserts on the socket 10 of ballast, uses like this and changes very conveniently, has also improved utilization rate, solved the shortcoming that interior starter exists, and has reduced cost (cost be electronic starter 1/10).
The utlity model has simple in structurely, work is sensitive, and cost is low, uses and changes convenient advantage. The starter used to the high-pressure mercury lamp of different size wattage, as long as it is just passable to change the physical dimension of bimetal leaf, structure need not change fully. The utility model has obvious replacement electronic starter and interior starter advantage, and economic benefit is big.
Claims (4)
1, a kind of outer starting device of gaseous discharge lamp, especially the outer starting device of high-pressure sodium lamp, it by the glass housing 1 that vacuumizes, bimetal leaf 2, movable contact utmost point molybdenum sheet 3, touch utmost point molybdenum sheet 5 surely and form, it is characterized in that an end of bimetal leaf 2 has a movable contact utmost point lead-in wire B who links up lamp work loop.
2, according to the described starting drive of claim 1, it is characterized in that this device has three electrode outlet lines promptly: beginning utmost point lead-out wire l, touch utmost point lead-out wire A and movable contact utmost point lead-out wire B surely.
3,, it is characterized in that movable contact utmost point lead-in wire B is connected with bimetal leaf 2 by soft lead-in wire 4 according to the described starting drive of claim 1.
4,, it is characterized in that glass housing 1 has the aluminium cover 7 of a band pin to be installed on the socket 8 of ballast according to the described starting drive of claim 1～3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87201711 CN87201711U (en) | 1987-01-22 | 1987-01-22 | Starter of high pressure sodium lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87201711 CN87201711U (en) | 1987-01-22 | 1987-01-22 | Starter of high pressure sodium lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87201711U true CN87201711U (en) | 1988-03-16 |
Family
ID=4817987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87201711 Withdrawn CN87201711U (en) | 1987-01-22 | 1987-01-22 | Starter of high pressure sodium lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87201711U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004030419A1 (en) * | 2002-09-30 | 2004-04-08 | Huo Nang Development Co. Ltd. | A starter for fluorescent lamp and a fluorescent lamp using the starter |
-
1987
- 1987-01-22 CN CN 87201711 patent/CN87201711U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004030419A1 (en) * | 2002-09-30 | 2004-04-08 | Huo Nang Development Co. Ltd. | A starter for fluorescent lamp and a fluorescent lamp using the starter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| 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 |