TWI396926B - Flash module - Google Patents

Description

Flash module

The invention relates to a flash lamp module.

At present, in the flash module, in order to reduce the welding man-hour, save the trigger connection wire, and make the module structure compact, the flash module 10 as shown in FIG. 1 is often used, and the lamp tube 11 and the reflector 12 are integrated into one. The reflector 12 is in contact with the zigzag triggering elastic piece 13, and the lower end of the triggering elastic piece 13 is electrically connected to a printed circuit board (not shown). The printed circuit board generates a high voltage of 3K~5K, and the zigzag triggering elastic piece 13 is transmitted to the reflecting umbrella 12 by touch, and then the gas in the bulb 11 is excited by the energy of the instantaneous high voltage to dissociate the gas, the tube The voltage difference between the two ends of the 11 is caused by the fact that the gas in the lamp tube 11 is freed, so that the ends of the lamp tube 11 are instantaneously turned on to generate a flash. However, during the conduction of the flash module 10, the Z-shaped triggering elastic piece 13 is elastically weak or offset, which may cause poor contact with the reflective umbrella 12 or even cause a problem that cannot be triggered.

In addition, the reflector and the printed circuit board are also bonded by a copper foil with a conductive paste, so that an insulating tape is applied on the outside of the conductive paste.

Among the above two methods, the first method is easy to cause poor contact, and the second method requires additional components to realize the connection between the reflector and the printed circuit board, and the positioning of the two types of reflectors requires an additional positioning structure, thus increasing Production costs.

In view of this, it is necessary to provide a flash module that is in good contact and low in cost.

A flash module includes a reflector and a tube inserted on the reflector. The reflector has a reflective surface. The reflector is made of a conductive material. At least one protruding trigger electrode extends from the outer surface of the reflector toward the direction away from the reflective surface.

In contrast to the prior art, the flash module extends at least one protruding trigger electrode from the outer surface of the reflector, and is electrically connected to the printed circuit board by the trigger electrode because the trigger electrode is The reflector extends to ensure good contact between the flash module and the printed circuit board, and the trigger electrode can also function to position the reflector without requiring another positioning structure, thereby reducing Production costs.

10, 100‧‧‧ flash module

11, 120‧‧‧ lamps

12, 110‧‧‧Reflection umbrella

13‧‧‧Trigger shrapnel

111‧‧‧Glossy surface

112‧‧‧reflective surface

113‧‧‧ outer surface

130‧‧‧Trigger electrode

200‧‧‧Printed circuit board

FIG. 1 is a schematic structural view of a prior flash module.

2 is a perspective view of a flash module of the present invention.

In order to further explain the flash module of the present invention, the following embodiments will be described in detail below with reference to the accompanying drawings.

Referring to FIG. 2 , the flash module 100 of the present invention includes a reflective umbrella 110 and a light tube 120 that is inserted into the reflective umbrella 110 . The flash module 100 is coupled to a printed circuit board 200.

The reflector 110 has a light emitting surface 111 and a reflective surface 112. The reflective surface 112 is an inner surface of the reflective umbrella 110. The outer surface 113 of the reflector 110 extends at least one protruding trigger electrode 130 away from the reflective surface 112.

The direction in which the trigger electrode 130 extends may be any. In the embodiment, the trigger electrode 130 is perpendicular to the light exit surface 111. With this arrangement, it is easier to assemble the reflector 110 with the printed circuit board 200.

The trigger electrode 130 can be located at any position on the outer surface 113 of the reflector 110. In the embodiment, the trigger electrode 130 is located at one end of the reflective umbrella 110. With this setting, molding is easier. It can be understood that the trigger electrode 130 can also be located at the center or other position of the outer surface 113 of the reflector 110.

The trigger electrode 130 can be directly inserted into the printed circuit board 200, and the trigger electrode 130 can be electrically connected to the printed circuit board 200 by soldering. In the embodiment, the trigger electrode 130 is directly inserted into the printed circuit board 200. So set up, easy to assemble.

The arc shape of the cross section of the reflecting umbrella 110 may be one of a parabolic shape, a semi-elliptical shape, a semi-circular shape or a pattern formed by other arcs. In the embodiment, the cross section of the reflecting umbrella 110 is parabolic. The reflector 110 is made of a conductive material. Preferably, the reflector 110 is made of a metal material.

The lamp tube 120 has an inflator. When the flash module 100 is in operation, the trigger electrode 130 generates an instantaneous high voltage and is transmitted to the gas in the lamp tube 120 via the reflector 110, so that the gas is Ionization, the ionized gas exhibits a low impedance state, such that the cathode of the lamp tube 120 is electrically connected to the anode, and a large amount of current is achieved by flashing the circuit at both ends of the lamp tube 120.

The flash module has at least one protruding trigger electrode extending from an outer surface of the reflector, and is electrically connected to the printed circuit board by the trigger electrode, because the trigger electrode is from the reflective umbrella Extending out, the contact between the flash module and the printed circuit board can be ensured, and the trigger electrode can also function as a positioning of the reflector, and no additional positioning structure is required, thereby reducing production. cost.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and equivalent modifications or variations made by those skilled in the art in accordance with the spirit of the present invention are It should be covered by the following patent application.

100‧‧‧ flash module

120‧‧‧Light tube

110‧‧‧Reflection umbrella

111‧‧‧Glossy surface

112‧‧‧reflective surface

113‧‧‧ outer surface

130‧‧‧Trigger electrode

200‧‧‧Printed circuit board

Claims (6)

A flash module comprising a reflective umbrella made of a conductive material and a light tube inserted on the reflective umbrella, the reflective umbrella having a reflective surface, the improvement being: from the outside of the reflective umbrella At least one protrusion-shaped trigger electrode extends away from the reflective surface, and the trigger electrode is directly connected to the printed circuit board to electrically connect the reflective umbrella to the printed circuit board. The flash module of claim 1, wherein the reflector has a light exiting surface, and the trigger electrode is perpendicular to the light exiting surface. The flash module of claim 1, wherein the trigger electrode is located at one end of the reflective umbrella. The flash module of claim 1, wherein the trigger electrode is located at a center of the reflective umbrella. The flash module of claim 1, wherein the lamp tube is internally filled with a gas. The flash module of claim 1, wherein the arc shape of the cross section of the reflector is one of a parabolic shape, a semi-elliptical shape, a semi-circular shape or a pattern formed by other arcs.