CN2258336Y - Electronic ballast for fluorescent lamp - Google Patents

Electronic ballast for fluorescent lamp Download PDF

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Publication number
CN2258336Y
CN2258336Y CN 96212916 CN96212916U CN2258336Y CN 2258336 Y CN2258336 Y CN 2258336Y CN 96212916 CN96212916 CN 96212916 CN 96212916 U CN96212916 U CN 96212916U CN 2258336 Y CN2258336 Y CN 2258336Y
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CN
China
Prior art keywords
electronic ballast
coil
capacitor
lamp
diode
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 - Fee Related
Application number
CN 96212916
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Chinese (zh)
Inventor
胡松泽
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Individual
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Individual
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Publication date
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Priority to CN 96212916 priority Critical patent/CN2258336Y/en
Application granted granted Critical
Publication of CN2258336Y publication Critical patent/CN2258336Y/en
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Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to an electronic ballast for a fluorescent lamp, which is composed of electronic ballasts I and II which are separately installed on two printed circuit boards in two independent casings, wherein, one end of an inductor coil L< 1 > in the electronic ballast I is connected with one end of a choke coil in the electronic ballast II into integration by a conducting wire. The other end of the choke coil and other two joints on the electronic ballast II are connected with lamp feet, and one joint on the electronic ballast I is connected with a lamp foot. When the utility model is used, the two casings can be separately installed at lamp foot points at both ends of a fluorescent lamp. Because two large heating elements in the ballasts, a high power triode, and the choke coil are separately installed in two single casings whose distance is very far, the heat dissipation condition is improved, the mutual influence is eliminated, the temperature rise is lowered, the aging of elements is delayed, and the service life is extended.

Description

Electronic ballast for fluoresent lamp
The utility model relates to a kind of electronic ballast for fluoresent lamp that is installed on the fluorescent lamp.
Because of with the fluorescent lamp of power optical efficiency height than incandescent lamp, have energy-conservation effect, so fluorescent lamp is subjected to people's favor deeply, and the power factor that its employed ballast is an inductance type is low, power consumption is big, not enough energy-conservation.A kind of high efficiency electric ballast has appearred again in existing market, because of its all components and parts all are assembled on the printed circuit board, be placed on and become as a whole in the housing, but after long-time the use, heat in the housing surpasses the limit that components and parts can bear, make accelerated ageing of part components and parts and damage, influenced the useful life of electric ballast.
The purpose of this utility model is to provide a kind of electronic ballast for fluoresent lamp of the property improved, and makes its components and parts not fragile, increase the service life greatly, and easy to install and use.
The utility model is achieved in that electronic ballast for fluoresent lamp is by diode D 1, D 2, D 3, D 4The bridge rectifier of forming with by diode D 5, D 6, D 7With capacitor C 1, C 2, C 5, C 6The filter circuit of forming connects and composes power circuit; By with triode BG 2The diode D that connects 9, D 10With by being connected inductance coil L 1Capacitor C in the secondary coil 4, resistance R 2And inductance coil L 1Main coil and capacitor C 7, triode BG 1The oscillating circuit that connects and composes; By with triode BG 1The diode D that connects 8, D 11With by being connected inductance coil L 1C in the secondary coil 3, resistance R 5With inductance coil L 1Main coil connect and compose oscillating circuit; Be fixed on the same printed circuit board (PCB) and same housing in form electric ballast (I), also comprise being fixed on another printed circuit board (PCB), in another housing by capacitor C 8And choke L 2The electric ballast of forming (II), between electric ballast (1) and electric ballast (II) by lead with inductance coil L 1One end of main coil and choke L 2An end connect into integral body.
Fig. 1. line map of the present utility model.
Fig. 2. block diagram of the present utility model.
Below in conjunction with accompanying drawing embodiment of the present utility model is further described.
By diode D 1, D 2, D 3, D 4Form bridge rectifier, its two dc terminal connects the serial connection capacitor C respectively 5, C 6Two ends and capacitor C 1With diode D 5And capacitor C 2With diode D 6An end in parallel, and end in addition in parallel meets diode D respectively 7Two ends constitute power circuit.
Resistance R 1, R 2, R 3A termination triode BG 2Base stage, R 3In addition terminating diode D 10, R 2End is by inductance coil L in addition 1Secondary coil connect capacitor C 4, triode BG 2Emitter meet diode D 9, D 9, D 10In addition end and C 4In addition end connect R 1Hold in addition and capacitor C 7Inductance coil L 1An end, triode BG 2The contact of collector electrode connect L 1In addition end and choke L 2An end connect C 7In addition termination series capacitance C 5, C 6Contact constitute oscillating circuit.Resistance R 4, R 5, R 6A termination triode BG 1Base stage, R 6In addition terminating diode D 11, R 5End is by inductance coil L in addition 1Secondary coil connect capacitor C 3, triode BG 1Emitter meet diode D 8, D 8, D 11In addition end and C 3In addition end connect again and L 1Connect R 4In addition termination triode BG 1Collector electrode, C 7A termination lamp base 1 constitute oscillating circuit.
More than three partial circuits be fixed on the printed circuit board (PCB), be placed on and constitute electric ballast (I) in the housing.
Capacitor C 3, choke L 2Be weldingly fixed on another independent printed circuit board (PCB) C 8Two ends meet lamp base I, II, L respectively 2A termination lamp base II be placed on and constitute electric ballast (II) in the housing.
Electric ballast (I) and (II) between with lead with inductance coil L 1An end and choke L 2An end connect into whole electric ballast.
During use, the 220 volts of power supplys that close, electric current is through D 1, D 2, D 3, D 4Bridge rectifier is again through D 5, D 6, D 7And capacitor C 1, C 2Trigger triode BG after the filtering 1, BG 2Work, higher-order of oscillation electric current is by inductance coil L 1With choke L 2And capacitor C 8, the filament that high-frequency oscillation voltage triggers the fluorescent lamp two ends makes fluorescent lamp operation.
The utility model is compared with prior art: because of BG 1, BG 2Be large power triode and L 2Choke all is main heater element, now it separately being contained in two independently reaches in the housing on the printed circuit board (PCB), become the independent ballast of two halves, with lead the two halves ballast is connected into whole ballast again, the two ends that the two halves ballast can be placed on fluorescent lamp during use are installed separately, need not concentrate on the position, so just can not interact, improved radiating condition, reduced temperature rise, delayed the aging of components and parts, prolonged useful life greatly, for condition has been created in popularization, the use of fluorescence lamp electronic energy-saving lamp.

Claims (1)

1. electronic ballast for fluoresent lamp is by diode D 1, D 2, D 3, D 4The bridge rectifier of forming with by diode D 5, D 6, D 7With capacitor C 1, C 2, C 5, C 6The filter circuit of forming connects and composes power circuit; By with triode BG 2The diode D that connects 9, D 10With by being connected inductance coil L 1Capacitor C in the secondary coil 4, resistance R 2And inductance coil L 1Main coil and capacitor C 7, triode BG 1The oscillating circuit that connects and composes; By with triode BG 1The diode D that connects 8, D 11With by being connected inductance coil L 1C in the secondary coil 3, resistance R 5With inductance coil L 1Main coil connect and compose oscillating circuit; Be fixed on the same printed circuit board (PCB) and same housing in form electric ballast (I), it is characterized in that also comprising being fixed on another printed circuit board (PCB), in another housing by capacitor C 8And choke L 2The electric ballast of forming (II), between electric ballast (I) and electric ballast (II) by lead with inductance coil L 1One end of main coil and choke L 2An end connect into integral body.
CN 96212916 1996-05-24 1996-05-24 Electronic ballast for fluorescent lamp Expired - Fee Related CN2258336Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 96212916 CN2258336Y (en) 1996-05-24 1996-05-24 Electronic ballast for fluorescent lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 96212916 CN2258336Y (en) 1996-05-24 1996-05-24 Electronic ballast for fluorescent lamp

Publications (1)

Publication Number Publication Date
CN2258336Y true CN2258336Y (en) 1997-07-23

Family

ID=33895442

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 96212916 Expired - Fee Related CN2258336Y (en) 1996-05-24 1996-05-24 Electronic ballast for fluorescent lamp

Country Status (1)

Country Link
CN (1) CN2258336Y (en)

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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