CN203352922U - Thermal trigger of metal halide lamp - Google Patents
Thermal trigger of metal halide lamp Download PDFInfo
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- CN203352922U CN203352922U CN2013203386423U CN201320338642U CN203352922U CN 203352922 U CN203352922 U CN 203352922U CN 2013203386423 U CN2013203386423 U CN 2013203386423U CN 201320338642 U CN201320338642 U CN 201320338642U CN 203352922 U CN203352922 U CN 203352922U
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- halogen lamp
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
Abstract
The utility model provides a thermal trigger of a metal halide lamp, and the thermal trigger is used for receiving a voltage output by a ballast and generating a high-voltage trigger impulse voltage to trigger the metal halide lamp. The thermal trigger comprises a rectifier circuit, a pulse signal generation circuit, a switch element and a high-voltage transformer, wherein the rectifier circuit is used for rectifying an AC power output by a rectifier to a DC power; the pulse signal generation circuit is used for generating frequency-modulated pulse signals; one terminal of the primary coil of the high-voltage transformer is connected with a positive electrode of a DC output terminal of the rectifier circuit, the other terminal of the primary coil is in series connection with a capacitor C, and the other terminal of the capacitor C is connected with a negative electrode of the DC output terminal of the rectifier circuit; and the switch element is in parallel connection between the positive electrode and the negative electrode of the DC output terminal of the rectifier circuit, the switch element is controlled by the frequency-modulated pulse signals output by the pulse signal generation circuit, and the switch element is closed at a high level. After the above technical scheme is employed for the thermal trigger, trigger pulse energy is largely increased by adjusting magnification times of the transformer; and the problem that a traditional thermal trigger of the metal halide lamp is poor in ignition performance is solved.
Description
Technical field
The utility model relates to metal halide lamp, particularly a kind of Metal halogen lamp heat trigger.
Background technology
Metal halide lamp (Metal Halide Lamp) claim again Metal halogen lamp, AC power work, produce the luminous discharge lamp of arc discharge in the halide mixed vapour of mercury and rare metal, metal halide lamp is to add the third generation light source that various metal halides are made on the high-pressure mercury lamp basis.Illumination adopts scandium sodium type metal halide lamp, this light fixture has the characteristics such as luminous efficiency is high, color developing good, the life-span is long, be a kind of energy-conservation new light sources that approaches color of sunshine, be widely used in the room lighting in the places such as stadiums, exhibition center, megastore, industrial premises, square, street, station, harbour.
Metal halogen lamp is a kind of discharge tube that is filled with rare gas, in start-up course, require electric ballast can provide sufficiently high open circuit voltage that electric arc tube is punctured, make these mix rare gas and ionize, and can provide enough energy to make glow discharge transfer as early as possible arc discharge to.During startup, the amplitude of required plus high-pressure pulse is relevant with being filled with the gas pressure size in lamp with width, relevant with interelectrode distance length.In the situation that lamp is cold, due to also not evaporation fully of iodide in electric arc tube, intraductal atmospheric pressure is lower.Glow discharge voltage is also lower.Lamp easily is lit (general 3-5KV), and when bulb enters normal operating conditions, iodide evaporate fully, and intraductal atmospheric pressure increases, and now will again light, and needs very high high-voltage pulse (general 20-30KV), just can make discharge tube glow discharge.
General trigger re-powers after cutting out in the bulb course of normal operation, and bulb can not be lighted at once, must " wait " light coolingly just can light bulb afterwards.According to the power difference, the stand-by period, between 5-10 minute, puts to no little inconvenience to the actual use of Metal halogen lamp.
The trigger too fast of exploitation, can realize the requirement of bulb to the high-voltage pulse amplitude in the past, but trigger performance due to the impact that is subject to bulb inner bag size, high-voltage pulse width, and repeatedly relight performance of reality is unsatisfactory.Be mainly the high-voltage pulse energy shortage, turn the arc discharge stage at aura and can not form the low electric arc of internal resistance, cause the situation of loss of ignition.Simultaneously, the lifting of high-voltage pulse energy is subject to the restriction of τ=RC loss, and the energy in the unit interval can't continue to promote.Be illustrated in figure 1 a kind of more typical trigger too fast circuit theory diagrams, as shown in Figure 1, in input voltage positive period, voltage is by D2, C2, R2 to capacitor C 2 chargings, and voltage peak is 400V; At the input voltage negative cycle, voltage is by R2, C1, D1 to capacitor C 1 charging, and voltage peak is-400V.Simultaneously C2+400V and C1-the 400V series connection by ZT to T electric discharge press, obtain high voltage pulse at the T another side.R1 in the down periods to C1, C2 electric discharge, prepare charging again next time.
After this circuit charges by junction capacitance C1, C2, electric discharge obtains high pressure at the T another side to ZT for C1, C2, and due to the limiting voltage of prime ballast output, the charging voltage of C1, C2 can be too not high, general+400V ,-400V; Because the charging loss that is subject to R2 limits, charge-discharge energy can not be too high; Elsewhere, according to the principle of N1/N2=U1/U2=I1/I2, the high multiple voltage boosting pulse energy of T can proportional decline.
The utility model content
To be solved in the utility model is the bad technical problem of repeatedly relight performance of Metal halogen lamp heat trigger.A kind of Metal halogen lamp heat trigger is provided.
The technical solution of the utility model is: a kind of Metal halogen lamp heat trigger, receive the voltage from ballast output, and produce high pressure trigger impulse voltage Metal halogen lamp is triggered, comprise rectification circuit, pulse signal generating circuit, switch element and high-tension transformer;
The ac input end of described rectification circuit connects the output of described ballast, and the AC rectification of rectifier output is become to direct current;
Described pulse signal generating circuit, by the DC terminal power supply of described rectification circuit, produces the frequency modulation on pulse signal;
Former polar curve circle one end of described high-tension transformer is connected with described rectification circuit DC output end is anodal, other end series winding capacitor C, another utmost point of capacitor C and the negative pole of described rectification circuit DC output end;
Described switch element is connected in parallel between the positive and negative electrode of described rectification circuit DC output end, and described switch element is controlled by the high-frequency pulse signal of described pulse signal generating circuit output, closure during high level.
Further, in above-mentioned Metal halogen lamp heat trigger: also be provided with voltage-doubler rectifier, high-voltage capacitance ZT, output transformer after the secondary coil of described high-tension transformer;
The high-frequency pulse signal voltage multiplying rectifier that described voltage-doubler rectifier will amplify through high-tension transformer, for described high-voltage capacitance ZT charging, the original grade coil series winding of described high-voltage capacitance ZT and described output transformer, the secondary coil of described output transformer connects Metal halogen lamp.
Further, in above-mentioned Metal halogen lamp heat trigger: described output transformer is three-winding transformer, two secondary coil series windings connect, described Metal halogen lamp is arranged on the in-phase end of the first secondary coil and the out-phase end of second subprime coil, and the out-phase end of the first secondary coil and the in-phase end of second subprime coil connect respectively negative level and the positive pole of ballast.
Further; in above-mentioned Metal halogen lamp heat trigger: also comprise under Metal halogen lamp open circuit or short-circuit conditions; high pressure triggers the protective circuit that unsuccessful automatic disconnection direct voltage connects; described protective circuit comprises ceramic electrothermal element, and described ceramic electrothermal element is arranged on the DC output end of described rectification circuit.
In the utility model, after having adopted technique scheme, by regulating the multiplication factor of transformer, promoted to a great extent the trigger impulse energy.Solved the bad problem of existing Metal halogen lamp heat trigger ignition performance.
Below with reference to drawings and Examples, the utility model is described in detail.
The accompanying drawing explanation
Fig. 1 is flip-flop circuit schematic diagram of the prior art.
Fig. 2 is the utility model embodiment 1 flip-flop circuit schematic diagram.
Embodiment
Embodiment 1, and the present embodiment is a kind of trigger of Metal halogen lamp, and circuit theory diagrams as shown in Figure 2.Reception in the present embodiment is from the voltage of rectifier output, produce high pressure trigger impulse voltage Metal halogen lamp is triggered, comprise rectification circuit, pulse signal generating circuit, switch element and high-tension transformer, voltage-doubler rectifier, high-voltage capacitance ZT, output transformer, protective circuit; The ac input end of rectification circuit connects the output of ballast, and the AC rectification of rectifier output is become to direct current; Pulse signal generating circuit, by the DC terminal power supply of rectification circuit, produces the frequency modulation on pulse signal; Former polar curve circle one end of high-tension transformer is connected with the rectification circuit DC output end is anodal, other end series winding capacitor C, another utmost point of capacitor C and the negative pole of rectification circuit DC output end; Switch element is connected in parallel between the positive and negative electrode of rectification circuit DC output end, and described switch element is controlled by the high-frequency pulse signal of described pulse signal generating circuit output, closure during high level.The high-frequency pulse signal voltage multiplying rectifier that voltage-doubler rectifier will amplify through high-tension transformer, be high-voltage capacitance ZT charging, the original grade coil series winding of high-voltage capacitance ZT and output transformer, and the secondary coil of output transformer connects Metal halogen lamp.Output transformer is three-winding transformer, two secondary coil series windings connect, described Metal halogen lamp is arranged on the in-phase end of the first secondary coil and the out-phase end of second subprime coil, and the out-phase end of the first secondary coil and the in-phase end of second subprime coil connect respectively negative level and the positive pole of ballast.Protective circuit triggers unsuccessful automatic disconnection direct voltage at high pressure and connects, and protective circuit comprises ceramic electrothermal element, and described ceramic electrothermal element is arranged on the DC output end of described rectification circuit.
Voltage from ballast becomes direct voltage through rectifying part, and direct voltage charges to capacitor C by protective circuit PTC.The direct voltage paired pulses produces circuit supply simultaneously, pulse-generating circuit produces the pulse duration frequency signal that the 200KHz duty ratio is 20%, pulse frequency output driving switch element, when the switch element conducting, direct voltage discharges by transformer, a switch, at a transformer secondary, obtains the doubly pulse amplitude high voltage on former limit of N.High-voltage pulse is after voltage multiplying rectifier, to high-voltage capacitor charging, after the trigger voltage of charging voltage higher than discharge tube, electric capacity passes through the secondary transformer of discharge tube, series connection with it to capacitor discharge, the secondary transformer boosts and obtains doubly former edge-impulse amplitude of 2*N at secondary through twocouese, by the secondary number of turn of controlling the secondary transformer, will obtain the 25KV high pressure at output.
The heat trigger of the Metal halogen lamp of the present embodiment comprises: input rectifying, pulse generation, protective circuit, booster circuit.The voltage of ballast output is after described input rectifying, filtering, become direct voltage, pulse-generating circuit is for generation of the 200KHz left and right, the narrow pulse signal of duty ratio 20%, the on off state of output of pulse signal driving switch management and control switching tube processed, the high-tension transformer primary coil is connected between direct voltage and switching tube, when the switching tube conducting, electric current forms loop through high-tension transformer, switching tube, at high pressure transformation secondary (secondary coil), obtains multiple in the high-voltage pulse on former limit.Booster circuit, by after the high-voltage pulse voltage multiplying rectifier, to high-voltage capacitance ZT charging, when charging voltage reaches marked voltage of discharge tube, discharges to high-voltage capacitance by the output transformer primary coil, through the output transformer bipolarity, boosts, and at output, obtains the 25KV high pressure.
Described protective circuit is under bulb open circuit or short-circuit conditions, and high pressure triggers unsuccessful automatic disconnection direct voltage and connects, and reaches the purpose that the protection trigger does not damage.
After having adopted technique scheme, because the trigger impulse energy is mainly relevant with total pulsewidth in the unit interval, and the frequency of pulse-generating circuit is operated in the high frequency state of 200KHz, has promoted to a great extent the trigger impulse energy.Solved the bad problem of existing Metal halogen lamp heat trigger ignition performance.
Beneficial effect is: the Metal halogen lamps such as at present general high or low power bulb 575W, 400W, 250W are realized closing at any time, the good startability that moment opens.
Claims (4)
1. a Metal halogen lamp heat trigger, receive the voltage from ballast output, produces high pressure trigger impulse voltage Metal halogen lamp is triggered, and it is characterized in that: comprise rectification circuit, pulse signal generating circuit, switch element and high-tension transformer;
The ac input end of described rectification circuit connects the output of described ballast, and the AC rectification of rectifier output is become to direct current;
Described pulse signal generating circuit, by the DC terminal power supply of described rectification circuit, produces the frequency modulation on pulse signal;
Former polar curve circle one end of described high-tension transformer is connected with described rectification circuit DC output end is anodal, other end series winding capacitor C, another utmost point of capacitor C and the negative pole of described rectification circuit DC output end;
Described switch element is connected in parallel between the positive and negative electrode of described rectification circuit DC output end, and described switch element is controlled by the high-frequency pulse signal of described pulse signal generating circuit output, closure during high level.
2. Metal halogen lamp heat trigger according to claim 1, is characterized in that: also be provided with voltage-doubler rectifier, high-voltage capacitance ZT, output transformer after the secondary coil of described high-tension transformer;
The high-frequency pulse signal voltage multiplying rectifier that described voltage-doubler rectifier will amplify through high-tension transformer, for described high-voltage capacitance ZT charging, the original grade coil series winding of described high-voltage capacitance ZT and described output transformer, the secondary coil of described output transformer connects Metal halogen lamp.
3. Metal halogen lamp heat trigger according to claim 1, it is characterized in that: described output transformer is three-winding transformer, two secondary coil series windings connect, described Metal halogen lamp is arranged on the in-phase end of the first secondary coil and the out-phase end of second subprime coil, and the out-phase end of the first secondary coil and the in-phase end of second subprime coil connect respectively negative level and the positive pole of ballast.
4. according to arbitrary described Metal halogen lamp heat trigger in claims 1 to 3; it is characterized in that: also comprise under Metal halogen lamp open circuit or short-circuit conditions; high pressure triggers the protective circuit that unsuccessful automatic disconnection direct voltage connects; described protective circuit comprises ceramic electrothermal element, and described ceramic electrothermal element is arranged on the DC output end of described rectification circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203386423U CN203352922U (en) | 2013-06-14 | 2013-06-14 | Thermal trigger of metal halide lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203386423U CN203352922U (en) | 2013-06-14 | 2013-06-14 | Thermal trigger of metal halide lamp |
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| Publication Number | Publication Date |
|---|---|
| CN203352922U true CN203352922U (en) | 2013-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013203386423U Expired - Lifetime CN203352922U (en) | 2013-06-14 | 2013-06-14 | Thermal trigger of metal halide lamp |
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| CN (1) | CN203352922U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104270880A (en) * | 2014-09-16 | 2015-01-07 | 北京环境特性研究所 | Solar simulator and power supply device of lamp array thereof |
| CN110446321A (en) * | 2019-08-16 | 2019-11-12 | 北京环境特性研究所 | Metal halogen lamp light adjusting circuit and Metal halogen lamp light-dimming method |
-
2013
- 2013-06-14 CN CN2013203386423U patent/CN203352922U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104270880A (en) * | 2014-09-16 | 2015-01-07 | 北京环境特性研究所 | Solar simulator and power supply device of lamp array thereof |
| CN104270880B (en) * | 2014-09-16 | 2016-09-21 | 北京环境特性研究所 | Solar simulator and the electric supply installation of lamp battle array thereof |
| CN110446321A (en) * | 2019-08-16 | 2019-11-12 | 北京环境特性研究所 | Metal halogen lamp light adjusting circuit and Metal halogen lamp light-dimming method |
| CN110446321B (en) * | 2019-08-16 | 2021-09-17 | 北京环境特性研究所 | Metal halide lamp dimming circuit and metal halide lamp dimming method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 518000 Guangdong Shenzhen Pingshan New Area Industrial Zone Julongshan District Jinweiyuan Industrial Plant Area A Building 2 Floor North District, B2 Building 6 Floor Patentee after: SHENZHEN TECHONE TECH Co.,Ltd. Address before: 518000 B1, Baoan District, Xin'an, Shenzhen, Guangdong, 68 District, Baoxian City, Luxian two road, Feng Ye yuan industrial factory area Patentee before: SHENZHEN TECHONE TECH Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131218 |