CN100587585C

CN100587585C - Flash lamp assembly, method for producing flash lamp assembly and digital camera

Info

Publication number: CN100587585C
Application number: CN200410069999A
Authority: CN
Inventors: 石野觉; 加贺谷佑一
Original assignee: Sony Corp; Tokyo Coil Engineering Co Ltd
Current assignee: Tokyo Coil Engineering Co Ltd
Priority date: 2003-07-24
Filing date: 2004-07-20
Publication date: 2010-02-03
Anticipated expiration: 2024-07-20
Also published as: JP2005043764A; KR20050012167A; JP4526790B2; TW200517758A; TWI244573B; CN1577043A; KR101067195B1

Abstract

The subject of the present invention is to provide a flash unit which is easily manufactured without limitation for the layout of the flash unit and which is improved in operational reliability by assembling, and also to provide a method for manufacturing a flash unit, and a digital camera. The flash unit is to be loaded on a camera to emit auxiliary light for photographing. The flash unit is equipped with: a xenon (Xe) lamp 24 which discharges by applying a trigger voltage to emit the auxiliary light; a trigger coil 22 to apply the trigger voltage on the xenon (Xe) lamp 24; and a holder 21 integrally molded with the trigger coil 22 so as to support the xenon (Xe) lamp 24 while the trigger voltage is applied.

Description

The manufacture method of flash lamp component, flash lamp component and digital camera

Technical field

The present invention relates to shine the flash lamp component of the fill-in light that is used to photograph, the manufacture method and the digital camera of flash lamp component.

Background technology

In patent documentation 1, the existing flash lamp component that is installed in digital camera etc. is disclosed.In so existing flash lamp component, in the discharge tube of illuminating part laterally or on every side, perhaps via substrate side overleaf, layout has pair discharge tube to apply the trigger winding of trigger voltage.And, for being connected of trigger winding and catoptron, by lead or sheet metal, weld with scolder from the terminal of trigger winding.

[patent documentation 1]

The spy opens the 2001-56494 communique

In the layout of above-mentioned existing flash lamp component, the lid be used for the discharge tube insulation is installed in trigger winding, during the parts of layout electric conductivity, is needed sufficient distance at interval around, so the layout for flash lamp component is restricted, the inconvenience that has equipment to maximize.

And, the space of trigger winding at interval since can not be near the high-pressure side layout parts, need be so can produce greater than the inconvenience of the area of part dimension.

And owing to high pressure, the scolder welding portion of the sheet metal of the high pressure output of connection trigger winding and the lead of catoptron or terminal strip etc. is also worked, and produces the inconvenience of reliability decrease even the scolder welding portion is insufficient.

Summary of the invention

Problem of the present invention is, a kind of restriction that is not subjected to the flash lamp component layout is provided, and makes simply, and can improve the flash lamp component of reliability of work of assembling and the manufacture method of flash lamp component, and digital camera.

Realize the object of the invention in order to solve described problem, flash lamp component of the present invention is installed on the camera, and the flash lamp component of the fill-in light that is used for photographing in irradiation possesses: during the irradiation fill-in light, by applying the discharge tube of trigger voltage discharge; Discharge tube is applied the trigger winding of trigger voltage; And for supporting discharge tube, with the integrated carriage of trigger winding at the state that applies trigger voltage.

And, the manufacture method of flash lamp component of the present invention is, be installed on the camera in manufacturing, the manufacture method of the flash lamp component of the flash lamp component of the fill-in light that irradiation is used for photographing, during the irradiation fill-in light, to apply the trigger winding of trigger voltage by the discharge tube that applies trigger voltage discharge, applying under the state of trigger voltage, one-body molded with the carriage that is used to support discharge tube.

And digital camera of the present invention is the digital camera that the flash lamp component that shines the fill-in light that is used to photograph is installed, and the flash lamp component that this camera possesses comprises: during the irradiation fill-in light, by applying the discharge tube of trigger voltage discharge; Discharge tube is applied the trigger winding of trigger voltage; And for supporting discharge tube, with the integrated carriage of trigger winding at the state that applies trigger voltage.

Thus, because carriage and trigger winding are one-body molded, so can make the luminous component miniaturization, the circuit area save spaceization.And the insulativity height of high voltage part does not need other parts such as insulating lid.And, make the connection summary of high-pressure section, and its reliability improves.

Because flash lamp component uses time extreme output voltage of the high pressure of 4kV as trigger winding usually, so in installment state is set, parts around being necessary to make are away from this high-voltage section (in this case, as the bee-line of creeping discharge, needing 4mm at least).This miniaturization for device is very disadvantageous situation, produces high-tension trigger winding by embedding in luminescence component, can comprise the miniaturization of peripheral circuits, can improve the insulativity and the reliability of the high voltage output of trigger winding simultaneously.

The present invention embeds by the trigger winding with this high-pressure section and is molded in the resin, can seal high-voltage section.This is the very favorable content of miniaturization for device.And when using sealant etc., generation work is forgotten or the error of the effect that the coating amount instability causes etc., owing to embed moulding, makes that the reliability of sealing is very high.

According to the present invention, one-body molded by carriage and trigger winding, can improve the insulativity of high voltage output, thus,, can make equipment miniaturization because restriction tails off on the layout of flash lamp component.

And, improve the result of insulativity, on the substrate with around the one side, the component layouts of substrate back becomes easily, so can comprise the miniaturization in loop on every side.

And, confirm by carrying out conducting under the state of fixing in trigger winding output, can improve reliability.

And, do not need to prepare to improve the lid that the insulativity of the trigger winding of other purposes is used.

Description of drawings

Fig. 1 is the stereographic map of the integral body of expression digital camera of the present invention.

Fig. 2 is the figure of the structure of expression flash lamp component, and Fig. 2 A is a front elevation, and Fig. 2 B is a ground plan, and Fig. 2 C is the B-B sectional view.

Fig. 3 is the circuit diagram of flash lamp component.

Fig. 4 is a signal waveforms, and Fig. 4 A is IGBT, and Fig. 4 B is the output of trigger winding voltage, and Fig. 4 C is the Xe tube current.

Fig. 5 is the process flow diagram of the manufacture method of expression flash lamp component.

Fig. 6 is the wiring layout of the manufacture method-1 of expression flash lamp component.

Fig. 7 is the wiring layout of the manufacture method-2 of expression flash lamp component.

Fig. 8 is the wiring layout of the manufacture method-3 of expression flash lamp component.

Embodiment

In Fig. 1, the digital camera 1 of digital camera etc. is installed in the front with flash lamp component 3, irradiation fill-in light when this assembly is taken the body photography 2 pairs of scioptics.Here, during at further miniaturization, the digital camera that the spatial accommodation of flash lamp component becomes problem describes, but is not limited only to this, and the silver halide photography machine also is mounted with flash lamp component.

Below, the structure of the flash lamp component that loads is described in the digital camera 1.

The luminous component of trigger winding, send the output of the triggering lead-out terminal 26 of trigger winding 22 in xenon (Xe) pipe 24 xenon (Xe) gas via the catoptron 23 of electric conductivity, be ionized by xenon (Xe) gas, thereby xenon (Xe) gas and the high-pressure side conducting of the ionization of xenon (Xe) pipe 24 discharge property are simultaneously luminous by catoptron 23 reflections.

In the past, being connected of catoptron and trigger winding, connected the trigger winding of installing on the substrate via the sheet metal of the terminal strip of catoptron wire connecting or contact etc.Therefore, the lead-out terminal part that produces high-tension trigger winding is exposed on substrate, because the problem of insulation during component layouts, can not dispose the parts of electric conductivity in its vicinity, is created in the inconvenience that takies the place on the substrate area.Usually, with the insulation that triggers output, with physically spacing out, perhaps on other parts, prepare lid, perhaps cover etc. and deal with, so the special-purpose area that may take place on the substrate must be bigger than parts with bonding agent, forget the installation insulating lid, perhaps the unequal inconvenience that causes of sealant coating.

In order to eliminate these problems, as shown in Figure 2, that carriage 21 and trigger winding 22 is one-body molded among the present invention.Thus, can eliminate the Insulation Problems of trigger winding 22, need on other parts, not use insulating lid, and (around one side, perhaps substrate back) special-purpose area also can be compact on the substrate.

The structure of carriage 21 is, has the accommodation section that holds trigger winding 22, simultaneously the catoptron 23 that will be inserted with xenon (Xe) pipe 24 with trigger under lead-out terminal 26 state of contact, have the slot part that can be pressed into.The structure of carriage 21 is to expose the input terminal of trigger winding 22 from the accommodation section that holds trigger winding 22, and from being pressed into the slot part of the catoptron 23 that is inserted with xenon (Xe) pipe 24, expose triggering lead-out terminal 26 along cell wall.

Carriage 21 is by having sealing and flexible material constitutes, for example the resin of polycarbonate ABS etc.And catoptron 23 is the structures that possible be inserted in the elongated slot in the carriage 21, is made of the conductive metal of for example aluminium etc., and the surface is the structure of mirror-like high reflectance.

And the elongated slot in carriage 21 is provided with and triggers lead-out terminal 26, so that make its about middle position between two terminals of xenon (Xe) pipe 24, is in state of insulation with two terminals of xenon (Xe) pipe 24.

And, trigger lead-out terminal 26, along the cell wall setting, manage 24 in the elongated slot in carriage 21 by being pressed into xenon (Xe) by triggering lead-out terminal 26 in the elongated slot in carriage 21, xenon (Xe) pipe 24 is being applied under the state of trigger voltage, and carriage 21 supports xenon (Xe) pipe 24.

And, trigger being connected of lead-out terminal 26 and catoptron 23, not the triggering lead-out terminal 26 that directly connects trigger winding 22, be the structure that the triggering lead-out terminal 26 of the sheet metal installed on the terminal by trigger winding 22 etc. connects indirectly.

And, according to the pressure of the carriage 21 that triggers 26 pairs of xenons of lead-out terminal (Xe) pipe 24, under fixing state, can confirm the conducting of trigger winding 22 and catoptron 23.

Like this, trigger stationkeeping in the elongated slot of lead-out terminal 26 in carriage 21, and, expose the coupling part of catoptron 23 and triggering lead-out terminal 26, so in any stage behind carriage 21 and trigger winding 22 one-body molded, can carry out checking, can be easy to carry out confirming performance as trigger winding 22.

In addition, with the protection of the light-emitting area of xenon (Xe) pipe 24 with the protective cover 25 of transparent resin in the face of and carriage 21 install.

Fig. 3 is the circuit diagram of flash lamp component.

Fig. 4 is a signal waveforms, and Fig. 4 A is IGBT (insulated-gate type field effect transistor (IGBT:Insulated GateBipolar Transistor)), and Fig. 4 B is the output of trigger winding voltage, and Fig. 4 C is the Xe tube current.

Among Fig. 3, flash lamp component circuit such as following formation and work.

Trigger winding 22 is one-body molded on carriage 21.Other circuit component except that catoptron 23 and xenon (Xe) pipe 24 is configured on the plated circuit described later.

At first, the voltage of accumulating in the electric capacity 31 is made the primary voltage of accumulating in the electric capacity 32 about 300V by resistance 33 and electric capacity 32 dividing potential drops.When being conducting from the control signal of microcomputer (hereinafter referred to as microcomputer) 35, shown in Fig. 4 A, IGBT34 is according to the control signal from microcomputer 35, conducting between 600 μ s～1ms, the primary voltage of accumulating in the electric capacity 32 discharge.

At this moment, shown in Fig. 4 B, the triggering of the out secondary of trigger winding 22 output 36 crests that become about 4kv offer catoptron 23.The triggering output 36 that offers catoptron 23 sends xenon (Xe) gas in xenon (Xe) pipe 24 to, shown in Fig. 4 C, by xenon (Xe) pneumoelectric from, in xenon (Xe) pipe 24, discharge.Thus, the voltage turn-on of accumulating in the electric capacity 31 of the xenon of ionization (Xe) gas and high-pressure side is by catoptron 23 reflections and luminous.

Below, the manufacture method of flash lamp component is described.

Fig. 5 is the process flow diagram of the manufacture method of expression flash lamp component.Fig. 6 is the wiring layout of the manufacture method-1 of expression flash lamp component.Fig. 7 is the wiring layout of the manufacture method-2 of expression flash lamp component.Fig. 8 is the wiring layout of the manufacture method-3 of expression flash lamp component.

Among Fig. 5, among the step S 1, carriage and trigger winding are one-body molded.Specifically, as shown in Figure 6, it is one-body molded to have the carriage 21 and the trigger winding that expose the trigger winding accommodation section 42 of triggering input terminal 44 and expose the groove 43 that triggers lead-out terminal 45.

Among the step S2, xenon (Xe) pipe is installed on catoptron.Specifically, as shown in Figure 6, open cylindrical portion is equipped with xenon (Xe) pipe 24 about catoptron 23.

Among the step S3, cover the terminal of xenon (Xe) pipe with serum cap.Specifically, as shown in Figure 6, with about serum cap be installed on 41-1 and 41-2 cover catoptron 23 about the left and right sides terminal of xenon (Xe) pipe 24 of open cylindrical portion.

Among the step S4, on the triggering lead-out terminal of the groove 43 of carriage, be pressed into catoptron 23.Specifically, as shown in Figure 6, xenon (Xe) pipe 24 is installed, and then covers with serum cap 41-1 and 41-2 under the state of left and right sides terminal of xenon (Xe) pipe 24, in the groove 43 of carriage 21, be pressed into catoptron 23, it is contacted with triggering lead-out terminal 45.At this moment, the side of the cylindrical portion of catoptron 23 contacts with triggering lead-out terminal 45.And the open front of the groove 43 of the open front of the mirror-like of catoptron 23 and carriage 21 is consistent.

Among the step S5, carry out the input terminal of trigger winding and the checking of catoptron.Specifically, as shown in Figure 6, the triggering input terminal 44 that exposes from the trigger winding accommodation section 42 of carriage 21 contacts with the triggering lead-out terminal 45 that groove 43 from carriage 21 exposes, and carries out the checking with the catoptron 23 of the groove 43 that is pressed into carriage 21.

Among the step S6, scolder is welded with plated circuit on the terminal of carriage.Specifically, as shown in Figure 7, xenon shown in Figure 6 (Xe) pipe 24 is installed, and then under the state of left and right sides terminal with serum cap 41-1 and 41-2 covering of xenon (Xe) pipe 24, for in the groove 43 of carriage 21, being pressed into catoptron 23, make each not shown terminal of its carriage 21 that contacts with triggering lead-out terminal 45, as shown in Figure 8, scolder is welded with plated circuit 46.

Among the step S7, protective cover is installed on carriage.Specifically, as shown in Figure 7,, the protective cover 25 of transparent resin is installed as the protection usefulness of the light-emitting area of xenon (Xe) pipe 24, make its covering be installed in carriage 21 the light-emitting area of xenon (Xe) pipe 24.As shown in Figure 8, for each not shown terminal of the carriage 21 that is assembled with each parts shown in Figure 6, after the scolder welding plated circuit 46; protective cover 25 is installed on carriage 21; at last, the plated circuit 46 of turning back in the side of the longitudinal direction of protective cover 25 is finished the assembling of flash lamp component 3.

Flash lamp component of the present invention, for example, when digital camera was photographed to the body that is taken, the device that can be used as the irradiation fill-in light used.

Claims

1, a kind of flash lamp component is installed on the camera, and the fill-in light that irradiation is used to photograph is characterized in that this assembly possesses:

Discharge tube when shining described fill-in light, discharges by applying trigger voltage;

Trigger winding is used for applying voltage to described discharge tube, and it is embedded into and is molded in the resin; And,

Carriage, by having sealing and flexible resin constitutes, for applying the described discharge tube of state lower support of described trigger voltage, one-body molded with described trigger winding on a side with respect to the length direction of the light-emitting area side of described carriage, and in the elongated slot of described carriage, be pressed into catoptron.

2, flash lamp component as claimed in claim 1 is characterized in that,

To be used for described discharge tube is applied the trigger winding lead-out terminal of described trigger voltage,, be arranged in the described carriage with roughly under central authorities between two terminals of described discharge tube and two terminal state of insulations of described discharge tube.

3, flash lamp component as claimed in claim 2 is characterized in that,

Be arranged on described trigger winding lead-out terminal in the elongated slot of described carriage along cell wall, by being pressed into described discharge tube via described trigger winding lead-out terminal in the elongated slot in described carriage, described discharge tube is being applied under the state of trigger voltage the described discharge tube of described bracket support.

4, a kind of manufacture method of flash lamp component is used for manufacturing and is installed in camera, and the flash lamp component of the fill-in light that irradiation is used to photograph is characterized in that,

During with the described fill-in light of irradiation the trigger winding embedding that applies trigger voltage by the discharge tube that applies the trigger voltage discharge is molded in the resin, and with in that to apply the carriage that is used to support described discharge tube under the state of described trigger voltage one-body molded on a side with respect to the length direction of the light-emitting area side of described carriage, described carriage is by having sealing and flexible resin constitutes, and is pressed into catoptron in the elongated slot of described carriage.

5, the manufacture method of flash lamp component as claimed in claim 4 is characterized in that,

With roughly under two terminal state of insulations of central authorities and described discharge tube between two terminals of described discharge tube, by via the trigger winding lead-out terminal that is provided with in the described carriage, described discharge tube is pressed in the elongated slot in the described carriage, thereby described discharge tube is being applied under the state of described trigger voltage the described discharge tube of described bracket support.

6, the manufacture method of flash lamp component as claimed in claim 5 is characterized in that,

Under the state that described trigger winding lead-out terminal is fixed to the pressure of described carriage by described discharge tube, carry out conducting and confirm.

7, a kind of digital camera is equipped with the flash lamp component that shines the fill-in light that is used to photograph, and it is characterized in that this flash lamp component has:

When shining described fill-in light, by applying the discharge tube that trigger voltage is discharged;

Be embedded into and be molded in the resin, described discharge tube is applied the trigger winding of trigger voltage; And

For applying the described discharge tube of state lower support of trigger voltage, and with the integrated carriage of described trigger winding,

Wherein, described carriage is one-body molded with described trigger winding on a side with respect to the length direction of the light-emitting area side of described carriage, and described carriage is by having sealing and flexible resin constitutes, and is pressed into catoptron in the elongated slot of described carriage.

8, digital camera as claimed in claim 7 is characterized in that,

9, digital camera as claimed in claim 8 is characterized in that,