CN203085490U - Short arc electric discharge lamp - Google Patents

Abstract

The utility model provides a short arc electric discharge lamp. According to the short arc electric discharge lamp, when a guide part (18) which is formed by a metal material and used for external connection and an external twisted wire-shaped lead (51) are soldered together for supplying electricity to the short arc discharge lamp, a high-density part (53) is arranged on a local part of the external lead (51), so that a phenomenon that solder flows from parts except the soldering part of the external lead (51) is avoided.

Description

Short arc discharge lamp

Technical field

The utility model relates to a kind of outside that is made of metal material by soldering and connects the short arc discharge lamp that the outside lead with the guide portion and the shape of twisting thread is electrically connected.

Background technology

The outside lead of the shape of twisting thread was not carried out any processing in the past, and be electrically connected with outside the connection with guide portion by the twist thread outside lead of shape of soldering.

In structure in the past, the solder of fusion flows outside the scope of wanting soldering extraly along outside lead, and therefore outside lead will hardening after solder has solidified.Its result, when in next operation lamp holder being installed, outside lead becomes and is difficult to bending, and the adjustment of the installation site of lamp and lamp holder is difficulty relatively.And, by be difficult to so crooked outside lead draw around, thereby on sealing, be applied with excessive power, can there be the possibility that lamp is damaged in its result.

The utility model content

A kind of short arc discharge lamp, this short arc discharge lamp comprises outside lead and outside the connection uses guide portion, this outside connects this outside lead that is brazed in the shape of twisting thread with guide portion, connects via this outside from this outside lead and powers to the electrode of discharge lamp with guide portion.Wherein, the high density position that density is higher than other position is set on this outside lead, so that solder is in the soldering position that mode in the scope of the paramount density parts in the end of outside lead is provided with outside lead.

Flow out solder owing to can prevent the position outside the position of soldering, guarantee the flexible/flexibility of outside lead, therefore can avoid applying excessive power to sealing from outside lead.

In the utility model, the above-specified high density position is provided with by the coiling hardware.

In the utility model, the soldering position at the said external lead-in wire is wound with hardware with solder in abutting connection with ground.

In the utility model, above-mentioned hardware is metal wire or metal forming, is to be made of nickel, chromium, copper, tantalum, tungsten, titanium, silver, gold or the alloy that comprises these metals.

In addition, in the utility model, the above-specified high density position is provided with by the said external lead-in wire is carried out heating and melting.

Description of drawings

Fig. 1 is the overall schematic of short arc discharge lamp.

Fig. 2-A is illustrated in outer peripheral face coiling metal wire and the figure that carried out the outside lead of undergauge.

To be expression to the outside connected with the guide portion soldering at outer peripheral face Fig. 2-B is wound with metal wire and has carried out the figure of the outside lead of undergauge.

Fig. 3-A is that expression constitutes local disappearance the in gap of many single conductors of lead-in wire by partial melting is made, thereby produced the figure of outside lead that density is higher than the high density position at other position.

Fig. 3-B is that expression will constitute local disappearance the in gap of many single conductors of lead-in wire by partial melting be made, thereby produced the figure that outside lead soldering that density is higher than the high density position at other position externally connects guide portion.

Embodiment

Utilize Fig. 1 that short arc discharge lamp of the present utility model is described.

Short arc discharge lamp 10 of the present utility model is a kind of as the short arc discharge lamp with the exposure light source of the exposure light source of light source or semiconductor-fabricating device or LCD manufacturing installation of projecting apparatus for example, and it comprises the discharge tube (luminous tube) 11 of transparent quartz glass system.In discharge tube, two electrodes (anode 13, negative electrode 14) separate predetermined distance ground mutually in the face of configuration.

In the both sides of discharge tube 11, with the sealed tube 15 that the mode faced mutually and discharge tube 11 are provided with quartz glass system integratedly, the two ends of sealed tube 15 are stopped up by lamp holder 19.

Sealed foil 17 and outside connection that the electrode support rod 16, molybdenum etc. of the conductivity of the metal anode 13 of supporting, negative electrode 14 are arranged in the internal configurations of sealed tube 15 with guide portion 18.

Short arc discharge lamp of the present utility model more comprises outside lead 31, and this outside lead 31 is brazed in outside the connection with guide portion 18.Thus, outside lead 31 and sealed foil 17, also have two electrodes to be connected with guide portion 18 to be electrically connected via the outside.

Sealed tube 15 is welded together with the glass tube 20 that is arranged in the sealed tube, and thus, the discharge space of having enclosed mercury and rare gas is sealed.

Outside lead 31 is connected with the power supply unit (not shown) of outside, if power to outside lead 31, then produces arc discharge between two electrodes, the bright line (ultraviolet light) that radiation is produced by mercury.

Execution mode 1

Utilizing Fig. 2-A, Fig. 2-B explanation that the outside has been connected with the guide portion soldering at outer peripheral face is wound with metal wire (hardware) and has carried out the situation of the outside lead of undergauge.

Outside lead 31 is twisted with the fingers many single conductors by strand and is constituted.Carry out undergauge by outer peripheral face coiling metal wire 40, thereby constitute local disappearance the in gap of many single conductors of outside lead 31, produce the high density position 41 that density is higher than other position to outside lead 31.

Then, so that the mode that the soldering position of outside lead is in the scope of the paramount density parts in the end of outside lead is carried out soldering.Also can be clear and definite by Fig. 2-B, Yin Xian soldering position externally, with solder 32 in abutting connection be wound with metal wire 40(hardware).

Soldering is to make outside the connection under the state that connects with guide portion and outside lead, utilizes burner etc. that it is heated and flows into melt metal solder (in the present embodiment, having used silver solder).

By the high density position is set as described above, be penetrated into situation outside the necessary part in the lead-in wire along the gap of many single conductors thereby can suppress solder 32.And, can not occur that solder 32 is crossed the high density position and the situation of permeating.Its result can keep the flexible/flexibility of outside lead.

In addition, as above-mentioned, hardware can also be selected metal forming except being the metal wire, and hardware is to be made of nickel, chromium, copper, tantalum, tungsten, titanium, silver, gold or the alloy that comprises these metals.

Execution mode 2

Utilize Fig. 3-A, Fig. 3-B explanation to make local disappearance the in gap of many single conductors that constitute lead-in wire, thereby produced the figure that outside lead soldering that density is higher than the high density position at other position externally connects guide portion by making partial melting.

Make at least a portion fusion of outside lead and the part, gap of many single conductors that constitute outside lead is disappeared, thereby produce the high density position 53 that density is higher than other position.

Then, so that the mode that the soldering position of outside lead 51 is in the scope of the paramount density parts 53 in the end of outside lead is carried out soldering.

Soldering is to make outside the connection under the state that connects with guide portion 18 and outside lead 51, utilizes burner etc. that it is heated and flows into melt metal solder (in the present embodiment, having used silver solder).

By high density position 53 is set as described above, thereby can suppress outside solder 52 is penetrated into necessary part in the outside lead along the gap of many single conductors.And, can not occur that solder 52 is crossed high density position 53 and the situation of infiltration.Its result can keep the flexible/flexibility of outside lead.

Utilizability on the industry

Owing to can prevent the situation that flow out at the position of solder outside the position of soldering, guarantee the flexible of outside lead, therefore can avoid applying excessive power to sealing from outside lead.

In addition; the conversion that those skilled in the art carry out above-mentioned execution mode in reasonable range; for example; around hardware, partial melting outside lead the high density position is set though in present embodiment 1,2, only put down in writing the foreign volume that externally goes between; but also can be provided with etc. by alternate manner, such a conversion all drops in the protection range of the present utility model.

Description of reference numerals

10 short arc discharge lamps; 11 discharge tubes; 12 discharge spaces; 13 anodes; 14 negative electrodes; 15 sealed tubes; 16 electrode support rods; 17 sealed foils; 18 outside connections were used guide portion; 19 lamp holders; 20 glass tubes; 31 outside leads; 32 solders; 40 metal wires; 41 high density positions; 51 outside leads; 52 solders; 53 high density positions.

Claims (6)

1. a short arc discharge lamp comprises and outside lead and outside the connection uses guide portion, and this short arc discharge lamp connects via the said external of soldering on the said external lead-in wire of the shape of twisting thread uses guide portion to electrode power supply, it is characterized in that,

On the said external lead-in wire, the high density position that density is higher than other position is set;

And, so that end to the mode in the scope at above-mentioned high density position that the soldering position of said external lead-in wire is in from the said external lead-in wire is provided with this soldering position.

2. short arc discharge lamp according to claim 1 is characterized in that,

The above-specified high density position is provided with by the coiling hardware.

3. short arc discharge lamp according to claim 1 and 2 is characterized in that,

Soldering position at the said external lead-in wire is wound with hardware with solder in abutting connection with ground.

4. short arc discharge lamp according to claim 2 is characterized in that,

Above-mentioned hardware is metal wire or metal forming, is to be made of nickel, chromium, copper, tantalum, tungsten, titanium, silver, gold or the alloy that comprises these metals.

5. short arc discharge lamp according to claim 3 is characterized in that,

Above-mentioned hardware is metal wire or metal forming, is to be made of nickel, chromium, copper, tantalum, tungsten, titanium, silver, gold or the alloy that comprises these metals.

6. short arc discharge lamp according to claim 1 is characterized in that,

The above-specified high density position is provided with by the said external lead-in wire is carried out heating and melting.

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