CN2076246U

CN2076246U - Flash lamp

Info

Publication number: CN2076246U
Application number: CN 90201932
Authority: CN
Inventors: 胡国贤
Original assignee: JINYING ELECTRONIC EQUIPMENT FACTORY YUYAO
Current assignee: JINYING ELECTRONIC EQUIPMENT FACTORY YUYAO
Priority date: 1990-02-19
Filing date: 1990-02-19
Publication date: 1991-05-01

Abstract

The utility model relates to a photographic equipment flash lamp which comprising movable lamp shade, a light reflecting bowl, a flash lamp tube, a front cover, a back shell, capacitance, a battery, a battery cover, a neon tube, a neon tube cover, a triggering reed and a hot shoe socket. The printed circuit board of the original flash lamp is added with an actuating circuit, a charge indicating circuit and an automatic triggering circuit; so the power source can be automatically switched off, and the automatic charge can be realized after the flashing; thereby, the switching off of the power source of the original flash lamp realized by the hand work is changed, the corrosion damage problem of the battery leakage which is caused by the long time use of the battery can be solved, and the long time use of the battery is caused by the forgotten switching off of power source of the flash lamp. The utility model has the advantages of long service life and energy saving. The utility model can replace all external-connection flash lamps which are provided with hot shoe sockets.

Description

Flash lamp

The utility model relates to a kind of photographic goods flashlamp.

The camera of domestic production at present all has manual power switch with circumscribed flash generator part, power switch is mainly by cameraman's manual operations, but clapped photo make make good use of flashlamp after, the cameraman often forgets easily and turns off power switch, battery also works on like this, except that wasting energy, if also can cause battery leakage too for a long time standing time, the parts in addition of corrosion flashlamp influence its use and damage whole flashlamp.

The purpose of this utility model is to provide a kind of and can cuts off the electricity supply automatically, and the camera flashlamp that can charge automatically again after the flash of light both can solve above-mentioned existing problem, can save the energy again, prolongs the serviceable life of flashlamp.

The utility model is achieved in that flashlamp mainly is made up of movable lamp shade, reflector, flash lamp tube, protecgulum, back cover, electric capacity, battery cover, hot shoe socket, neon tube cover, printed circuit board (PCB) etc., on the existing original printed circuit board (PCB) of flashlamp, increase start-up circuit, charging indication, automatic trigger, thereby can cut off the electricity supply automatically, can charge automatically again after the flash of light.

Fig. 1, flash lamp design synoptic diagram:

Movable lamp shade (1), reflector (2), flash lamp tube (3), protecgulum (4), neon tube cover (5), triggering reed (6), back cover (7), neon tube (8), neon tube (9), printed circuit board (PCB) (10), main capacitance (11), battery (12), battery cover (13), hot shoe socket (14).

Fig. 2, flashlamp electric circuit diagram:

Start-up circuit (15), charging indication (16), automatic trigger (17).

Below in conjunction with accompanying drawing embodiment of the present utility model is further described:

With reference to Fig. 1, two slotted hole places on the bottom surface of printed circuit board (PCB) (10) have two to trigger reed (6), one end is welded on the printed circuit board (PCB) (10), other holds unsettled, aim at two and trigger reed (6) at two slotted hole places on the front of printed circuit board (PCB) (10), neon tube (8), (9) are installed respectively, embed neon tube cover (5) in two slotted holes on the back cover (7), two neon tube covers (5) are aimed at and are triggered reed (6), neon tube (8), (9) installation.

With reference to Fig. 2, trigger reed (6), neon tube cover (5) composition start button, omitted a power switch, trigger reed (6) one termination batteries (12), in addition end series connection R ₁Be connected with the base stage of triode BG and constitute start-up circuit (15), neon tube (8) one termination transformer B ₁Output terminal, end series connection R in addition ₂The base stage of back and triode BG is connected and constitutes charging indication (16), capacitor C ₂One end passes through capacitor C ₃Meet transformer B ₂, hold series connection R in addition ₃The base stage of back and triode BG is connected and constitutes automatic trigger (17), all is installed on the printed circuit board (PCB) (10), each components and parts is contained on the printed circuit board (PCB) (10) by shown in Figure 2 again, and battery (12) is two joints, 5 ^#Battery, printed circuit board (PCB) (10) are screwed on back cover (7), and other structure of flashlamp does not describe in detail with now flashlamp is identical.

Only need during use hot shoe socket (14) is inserted on the camera, need only the neon tube cover (5) of pressing start button with hand during photography, neon tube cover (5) is pressed downwardly onto triggering reed (6) and makes the start-up circuit (15) that triggers on the logical printed circuit board (PCB) (10) of the unsettled termination of reed (6), battery (12) is by the triggering of start button, add a positive potential for the base stage of triode BG, make transformer B with triode BG interlock ₁Work is at B ₁Output terminal produce alternating voltage, then charging indication neon tube (8) energising is shinny, gives main capacitance (11) C by diode D simultaneously ₄Charging, after being charged to assigned voltage, neon tube (9) is shinny, and adds a negative voltage for the base stage of triode BG by diode D, causes triode BG automatic cut-off to be cut off the electricity supply, and charging indication neon tube (8) outage is at this moment extinguished.

If photography the time was used flashlamp, treat the flashlamp flash of light after, by the triggering capacitor C in the automatic trigger (17) ₂Again add a positive potential for the base stage of triode BG, make main capacitance (11) C ₄Again charging, and repeat the above-mentioned course of work, triode BG is ended, to cut off the electricity supply, charging indication neon tube (8) outage is extinguished.

This flashlamp only needs to set up startup, charging indication on the existing original printed circuit board (PCB) of flashlamp, automatic trigger, thereby can cut off the electricity supply automatically, also can charge automatically in the flash of light back, changed the situation that existing flashlamp is cut off the electricity supply by manually-operated, saved the energy and brought great convenience to the cameraman, and made flashlamp avoid the damage of battery leakage corrosion, this flashlamp can replace the circumscribed flashlamp of all band hot shoe socket to use.

Claims

1, a kind of photographic goods flashlamp, form by movable lamp shade (1), reflector (2), flash lamp tube (3), protecgulum (4), neon tube cover (5), triggering reed (6), back cover (7), neon tube (8), neon tube (9), printed circuit board (PCB), electric capacity (11), battery (12), battery cover (13), hot shoe socket (14), it is characterized in that also comprising on the printed circuit board (PCB) start button, trigger reed (6) one termination batteries (12), in addition end series connection R ₁Be connected with the base stage of triode BG and constitute start-up circuit (15), neon tube (8) one termination transformer B ₁Output terminal, end series connection R in addition ₂The base stage of back and triode BG is connected and constitutes charging indication (16), capacitor C ₂An end pass through capacitor C ₃Meet transformer B ₂Input, end series connection R in addition ₃The base stage of back and triode BG is connected and constitutes automatic trigger (17).

2, flashlamp according to claim 1, it is characterized in that start button is by neon tube cover (5) with trigger reed (6) and form, triggering reed (6) one ends are welded on two slotted hole places on printed circuit board (PCB) (10) bottom surface, other holds unsettled, neon tube cover (5) is fixed in two slotted holes on the back cover (7), aims at and triggers reed (6).