CN101627456A

CN101627456A - Securing element for a discharge lamp and arrangement with such a securing element

Info

Publication number: CN101627456A
Application number: CN200780052159A
Authority: CN
Inventors: 马蒂亚斯·莫克尔
Original assignee: PATRA Patent Treuhand Munich
Current assignee: Osram GmbH; PATRA Patent Treuhand Munich
Priority date: 2007-03-13
Filing date: 2007-03-13
Publication date: 2010-01-13
Also published as: WO2008110207A1; KR20100005075A; TW200901265A

Abstract

The invention relates to a securing element which is constructed for securing a relative position between a holding rod (3, 4) for an electrode (1, 2) of an electric lamp (I) and a support piece (5, 6) for supporting the holding rod (3, 4) and which has an annular form, wherein one inner side (101) of the annular form is constructed at least in some areas for engaging with a structured region (31) of the holding rod (3). The invention also relates to an arrangement with a holding rod for an electrode, a support piece, and a corresponding securing element.

Description

The retaining element and the device that has this retaining element that are used for discharge lamp

Technical field

The present invention relates to a kind of device that is used for the retaining element of discharge lamp and has this retaining element.

Background technology

High-pressure discharge lamp, for example mercury vapor lamp (HBO lamp) are because its size and structure and for impact load sensitivity that for example can appearance under the power effect of stronger short time.Especially, when transportation, this lantern festival suffers such impact load.Particularly power greater than 2kW, particularly situation greater than the lamp of 4kW under, when this masterpiece time spent occurring, be not inessential risk owing to the size of electrode exists lamp to break such.Consequent damage can cause the unavailable of lamp.Especially, produce evitable lamp substandard products thus, and also reduced user satisfaction in addition.

The electrode system of high-pressure discharge lamp comprises a plurality of single parts, comprises also wherein that support section, this support section are commonly referred to support steamboat and by fabricated out of quartz.List partly, particularly quartzy steamboat just finally is fixed in the rod tube (Schaftrohr) under the situation of fusion, and this rod tube forms the bulb neck of discharge lamp subsequently.Because the electrode system in the high-pressure discharge lamp is most of by fusion vertically during making lamp, thus need be with the movable part of suspension, particularly this support portion fixes or maintenance, and they can not slide or fall thus.

Be known that between the maintenance bar of electrode and this support section, quartzy steamboat and introduce and lay the strip that tantalum constitutes, make to keep support section and will prevent sliding stop.Yet what can occur under the situation of this band is, the part of band fractures and falls into the arc chamber of discharge lamp, can influence lamp work thus.

In addition, have only by these bands and when using a plurality of band, just can guarantee to each other placed in the middle of single part.Yet, so also limited accuracy placed in the middle.

In addition, about the accelerative force that occurs, the evaporation of known form of implementation is comparatively insufficient.

Summary of the invention

Task of the present invention is to propose a kind of retaining element that is used for the parts of discharge lamp, wherein can guarantee these parts relative positioning to each other.Especially, when making electric light, guarantee this point.

In addition, this task is to propose a kind of device that is used for discharge lamp that has this retaining element, and is wherein placed in the middle except realizing also can realizing parts the fixed-site.

These tasks solve by retaining element and the device according to independent claims.

Retaining element according to the present invention according to a first aspect of the invention is used for fixing at the maintenance bar of lamp electrodes with around relative position between the support section that keeps bar.This retaining element has annular shape, wherein the local at least structured region that is used for being coupled to the shell surface that keeps bar that is configured in the inboard of annular shape.By this configuration, can realize the parts of electric light are located each other reliably.Especially, can prevent thus that during manufacture support section is with respect to the slip that keeps bar.

In addition, this configuration by retaining element also can improve the anti-stability and particularly improved elastic reaction under impact load situation in short-term of fractureing.Particularly, when bigger electrode be fixed on keep on the bar and situation in the accelerative force of effect under when the bigger lever force of the system that acts on occurring, can prevent retaining element and/or keep fractureing of bar.

The annular shape of retaining element can be understood as the moulding of circular moulding and oval moulding or other no corner angle.And annular shape equally also is interpreted as a kind of local at least configuration that has corner angle ground to make up.

Preferably, annular shape is complete on ring Zhou Fangxiang makes up closedly.By this configuration, can also guarantee to each other placed in the middle of mentioned parts fixing reliably except having guaranteed reliable position.

Yet what also can design is that annular shape makes up on ring Zhou Fangxiang openly.Especially, under the situation of more resilient configuration, so retaining element also can be arranged on the maintenance bar of electrode laterally.

Preferably, the inboard of annular shape makes up with following interior diameter at a position at least: this interior diameter is less than the overall diameter at the external structure edge of the structured region that keeps the bar shell surface.Keep on the bar if retaining element is installed to, then the diameter proportion between annular shape and structural edge is designed to make and has guaranteed the reliable maintenance of retaining element in terminal location.Cross structural edge by retaining element is moved to a certain extent, can guarantee kayser based on the diameter design, and avoid sliding back of retaining element thus.Part relative position to each other can be fixed thus reliably.

Preferably, the inboard of annular shape is provided with the structured region that at least one flexible latch elements is used for being coupled to the maintenance bar.The configuration of the flexibility by latch elements can keep on the bar and can realize without damage moving crossing structural edge so that easily retaining element is installed to.In addition, so also can realize kayser reliably.

Retaining element preferably has the shank of the flexibility of a plurality of mid point orientations towards retaining element thus, and its interior diameter is less than the overall diameter of the structural edge of the structured region that keeps bar.

In the time of on stator being set to the maintenance bar, so these flexible latch elements are slight curving and kayser after crossing structural edge.

Preferably, on the inboard of the annular shape of retaining element, be built with the latch elements of a plurality of flexibilities.Except having improved the parts relative position that will fix to each other, also can realize placed in the middle thus more accurately.

A plurality of latch elements can preferably equidistantly be provided with on the ring Zhou Fangxiang of the retaining element of annular shape each other.What also can design especially is that they have identical moulding and/or identical size.Thus, particularly can realize symmetrical structure, this structure has guaranteed these parts accurate placed in the middle and relative positioning to each other under the situation of columniform maintenance bar and columniform support section.

Retaining element is advantageously by high temperature resistant and flexible material construction.What can design especially is, retaining element is at least in part by molybdenum and/or made up by tungsten at least in part.

Preferably, the interior diameter of annular shape at least one part less than keeping the overall diameter of bar outside structured region.

The elastic reaction of the flexible latch elements of retaining element helps the feasible impulsive force that occurs that partly absorbs.This can realize by the part of the power that occurs is shared on the other hand by temporary transient extension on the one hand.Preferably, designed for this reason retaining element accurately has been arranged in the recess of support section ordinatedly.

By what this retaining element also can be realized be, keep bar can and non-migration must be as far as making it collide on the inward flange of support section and damaging or damage this support section.Occurring under the situation of lever force, also can guarantee that reliable position is fixing and placed in the middle thus by retaining element.

Another aspect of the present invention relates to a kind of retaining element, and its structure is used for fixing at the maintenance bar of the electrode of electric light and is used to support relative position between the support section that keeps bar.This retaining element has annular shape, wherein the local at least interior diameter that has less than the overall diameter that keeps bar in the inboard of annular shape.Especially, in the zone of the terminal location of retaining element, make up this diameter Relationship.In this fixed position, retaining element mechanically is placed in securely to a certain extent thus and keeps on the bar, makes and can prevent sliding stop, particularly prevents the slip towards installation direction.

In this configuration of retaining element, no longer certain maintenance bar that requires has structured region in the zone of the terminal location of retaining element.This configuration by retaining element also can guarantee parts secure fixation to each other under the situation of other manufacturing steps of considering electric light, and particularly provides reliable position to fix at the process of fusion.

In aspect relating to two of retaining element, the band that no longer needs tantalum to constitute so that with retaining element with other parts, particularly be connected with support component with the maintenance bar.In addition, can prevent also that by this configuration branch fractures and falls into arc chamber in the middle part of having the discharge lamp of this retaining element from this retaining element.

Preferably, in retaining element, designed according to second aspect, make up the zone of at least one flexibility in the inboard of annular shape, and at the interior diameter of retaining element on the flexible region less than keeping the overall diameter of bar in the zone of the terminal location of retaining element.By this configuration, can relatively save trouble the ground assembling fixing units and in addition the bending by flexible region guarantee reliable location.Particularly retaining element is being set to when keeping on the bar, flexible region is thus by crooked against installation direction (Aufziehrichtung) and can avoid retaining element to slide against this installation direction thus.

Also can be considered favourable expansion scheme according to other favourable expansion scheme of the retaining element of first aspect according to the retaining element of second aspect.

In aspect two of retaining element of the present invention, retaining element also can make up on peviform ground.Preferably, not only design has extension in a plane, but design has the three-dimensional structure of sidewall, and this sidewall local linking ground at least makes up.By this configuration, can realize the attenuation characteristic of lever force and particularly alleviate lever force, also can improve the anti-stability that fractures thus.Especially, when the retaining element of such shaping is arranged in the recess of support section, the bearing-surface of retaining element on the inboard of recess can be realized with accurately mating, impulsive force can be stopped thus.Guaranteed that by this form of implementation improved power distributes.

Another aspect of the present invention relates to a kind of device that is used for discharge lamp, particularly high-pressure discharge lamp, and it has maintenance bar, support section and retaining element according to a first aspect of the invention or the retaining element according to a second aspect of the invention that is used for electrode.

Preferably designed: keep bar to comprise structured region, this structured region has at least one structural edge.Especially, this structured region is configured to and makes it have at least one otch, described otch is structured in the shell surface that keeps bar, and the structural edge of otch has following overall diameter: this overall diameter is less than or equal to and keeps the overall diameter of bar outside this structured region.In this configuration, decision design thus also is built with otch in structured region, and these otch do not exceed the outside size that keeps the shell surface of bar outside structured region on its size.Thus, otch is groove or the material breach that keeps in the bar.

If the interior diameter of retaining element is less than the overall diameter of the structural edge of otch and less than keeping the overall diameter of bar outside this structured region in this configuration, then the flexible region of retaining element can be engaged in this otch and guarantees the fixing of parts relative position to each other thus.

Preferably, structured region comprises the part section of at least one cone shape.The tapered portion of the part section of cone shape makes up towards being arranged on the electrode that keeps on the bar.Thus, can in the tapered segments of the part section of cone shape, be implemented in the kayser of the flexible region on the retaining element inboard.Pass through this configuration and the setting of the tapered portion of cone shape just, can prevent the slip of retaining element towards electrode direction.

What also can design is, structured region has at least one ledge, and this ledge is structured on the shell surface that keeps bar and comprises that structural edge, this structural edge have than the bigger overall diameter of maintenance bar outside the structured region.By this configuration, for example can realize the structure opposite to a certain extent with the performance that has otch.Thus, in the zone of shell surface, from keep bar, do not remove material, but on shell surface, make up the material additives, make up ledge thus.In this configuration, so what can design is that the interior diameter of retaining element equals or even greater than keeping the overall diameter of bar outside structured region.Yet importantly, the interior diameter of retaining element is less than the overall diameter of the structural edge of the ledge of structured region.In this way, the retaining element transmission also can realized fixed-site during by this structural edge and particularly preventing the slip of installation direction.

What also can design in this configuration that has one or more ledges is, these ledges are configured to the part section of cone shape, and fully around or only part around the shell surface ground structure that keeps bar.

Equally, can make up the form of implementation that centers on and only partly center on fully of this otch.

Designed in a favourable form of implementation, retaining element is arranged in the support section.By this configuration, the hollow at least partly structure of support section and be designed for and hold retaining element.Except the configuration of saving position and compactness, also can guarantee thus stationary positioned and further improvement placed in the middle.

Preferably, support section has recess in the end, and retaining element can be incorporated in this recess and can be arranged in its terminal location with accurately mating.By this form of implementation, can save trouble ground and in the mode that is guided retaining element is arranged to its final installation site to a certain extent, and the also final terminal location of mechanically stable ground structure in addition.In addition, the installation of this accurate coupling by retaining element also can realize well especially the function that parts are placed in the middle each other by retaining element.

Preferably, see on y direction that recess makes up in support section with attenuating, and structure is porose on inner check, this hole has following interior diameter: this interior diameter has guaranteed the arrangement of the accurate coupling of retaining element.

In addition, also comprise discharge lamp, particularly high-pressure discharge lamp by the present invention, it comprises the device that has the maintenance bar, support section and the retaining element that are used for electrode according to of the present invention.Discharge lamp also can have the favourable configuration of this device.

Description of drawings

Further set forth embodiments of the invention by schematic diagram below.Wherein:

Fig. 1 shows the end view according to high-pressure discharge lamp of the present invention;

Fig. 2 shows the perspective view according to device of the present invention that is used for according to the high-pressure discharge lamp of Fig. 1;

Fig. 3 shows the end view of the maintenance bar that is used for electrode;

Fig. 4 shows the amplifier section according to the maintenance bar of Fig. 3;

Fig. 5 shows first form of implementation of the structured region that makes up in the maintenance bar according to Fig. 3 or Fig. 4;

Fig. 6 shows another embodiment according to the structured region of the maintenance bar of Fig. 3 or Fig. 4;

Fig. 7 shows the vertical view according to an embodiment of retaining element of the present invention;

Fig. 8 a to 8f shows different forms of implementation according to retaining element of the present invention with vertical view;

Fig. 9 shows another embodiment according to retaining element of the present invention with perspective view; And

Figure 10 shows the perspective view according to another form of implementation of device of the present invention that is used for according to the high-pressure discharge lamp of Fig. 1.

Embodiment

In the accompanying drawings, identical or function components identical is provided with identical Reference numeral.

Gone out high-pressure discharge lamp I with schematic side illustration in Fig. 1, it has negative electrode 1 and anode 2.Negative electrode 1 is fixed on and keeps on the bar 3.Anode 2 is fixed on and keeps on the bar 4.Keep bar 3 and 4 to be pooled to respectively in

support section

5 or 6, they are configured to quartzy tubule.These mentioned parts of high-pressure discharge lamp I are arranged in the discharge vessel 7, and this discharge vessel is made up by quartz glass.Discharge vessel 7 comprises the oval discharge bulb 71 that is shaped, and the maintenance bar 3 and 4, anode 2 and the negative electrode 1 that have setting electrode thereon extend in this discharge bulb.In the discharge bulb 71 that is shaped elliptically, make up arc chamber.The bulb neck 72 of

discharge vessel

7 and 73 extends in both sides and opposed to each other.

On

bulb neck

72 and 73, be respectively arranged with and be connected

lamp holder

8 and 9.

As shown in the view of Fig. 1, in support section 5, be provided with retaining element 10, it is also referred to as stator or dish.Comprise support section 5, keep the device 11 of bar 3 and retaining element 10 to be molten in the bulb neck 73.

Similarly, in support section 6, be provided with retaining element 12, and comprise and keep the device 13 of bar 4, support section 6 and retaining element 12 to be molten in the bulb neck 72.

This is melted in this and makes up airtightly.

Figure 2 illustrates perspective view according to an embodiment of device 11 of the present invention.This device 11 comprises columniform support section 5, and this support section has the hole 54 of break-through, keeps bar 3 to be inserted in this hole.Support section 5 on the end 51 of negative electrode 1, be built with recess 53, this recess has the regional 53a of cone shape and then its cylindrical region 53b on the direction of longitudinal axis A.On the direction of the second end 52, recess 53 at first makes up thus with attenuating and carries out the transition to subsequently among the regional 53b, and this zone has the diameter that keeps identical on certain height.

Then deviate from and be provided with the end of the dish that do not specifically illustrate in the end 52 of negative electrode 1 as this device 11.

Keep bar 3 to have the structured region 31 that on shell surface 3a, makes up.As shown in FIG. 2, support section 5 and maintenance bar 3 positioning design relative to each other are for making structured region 31 be positioned in the support section 5.Especially, this configuration is designed to make retaining element 10 in end-state, to be positioned on the bottom backstop of this zone 53b and is coupled in the structured region 31.Especially, designed the kayser that is keeping between bar 3 and the retaining element 10 at this.By this device this configuration of 11, can guarantee on the one hand keeping between bar 3 and support section 5 and the retaining element 10 the fixing of position toward each other.In addition, this clearly location by the accurate cooperation of retaining element 10 in regional 53b also can guarantee the placed in the middle of parts.Especially in this way also can improve the attenuation under the situation of accelerative force effect, and stop the lever force that affacts on the maintenance bar 3 better.Can reduce significantly or prevent fully to make the damage of time spent, particularly retaining element 10 and/or keep fractureing of bar 3 by this configuration in this accelerative force.

Figure 3 illustrates the schematic side elevation that keeps bar 3.Keep bar 3 to have total length l1, this length is approximately 62mm in this embodiment.The top edge of structured region 31, particularly this structured region 31 has apart from l2 apart from the front end that keeps bar 3.This is about 36.5mm apart from l2 in this embodiment.

In addition, keep bar 3 to have overall diameter d1 outside structured region 31, this overall diameter is about 8mm in this embodiment.

Figure 4 illustrates segment section according to the maintenance bar 3 of Fig. 3.Show structured region 31 enlargedly at this, it comprises a plurality of grooves in an illustrated embodiment, and shows the sawtooth profile in cross sectional view.The number of these grooves only is exemplary and should only be used to show structured region 31.In principle, some this grooves just enough can make up structured region 31 and can guarantee to be used for and will keep the fixing function of bar 3, support section 5 and retaining element 10 relative positioning to each other.Shown in the form of implementation according to Fig. 4 in, structured region 31 has length l 3, it is about 5mm.This value also only is exemplary and can makes up obviously littlelyr.

Structured region 31 preferably is structured on the shell surface 3a fully with centering on.Yet what also can design is that structured region 31 only makes up on ring Zhou Fangxiang partly.

Shown in form of implementation in, groove have the height or length l 4, it for example is 0.25mm.Preferably designed, the number minimum of groove and the length l 4 of this groove are greater than 0.25mm.

Figure 5 illustrates segment section 31a according to the view of Fig. 4.Schematic diagram among Fig. 5 illustrates first embodiment that finishes structure zone 31.It can be seen, in keeping bar 31, be built with the material breach, make to make up otch 311,312 and 313.Otch 311 to 313 makes up with depth capacity t1.In this way, form the afterbody of point, these afterbodys form structural edge 311a and 312a in the outside.These structural edge 311a and 312a are around the ground structure and do not stretch out shell surface 3a.In this form of implementation according to Fig. 5, structured region 31 is less than or equal to thus and keeps the diameter d 1 of bar 3 outside structured region 31.

In addition as from the view of Fig. 5 as can be seen, otch 311 to 313 makes structured region 31 have the part sections 314,315 and 316 of a plurality of cone shapes that are provided with in succession being configured to aspect its moulding.

In this form of implementation according to the maintenance bar 3 of Fig. 5, retaining element 10 is designed to make interior diameter d3 (Fig. 7) less than the overall diameter d1 that keeps bar 3 in its annular configuration.In this way, what can realize when positioning and fixing element 10 is, the inboard 101 of retaining element 10 or the flexible region 102 to 107 (for example Fig. 7) that makes up thereon snap in the structured region 31 and be engaged to

otch

311 or 312 or 313 in.

Figure 6 illustrates another embodiment according to the maintenance bar 3 of the segment section 31a among Fig. 4.In this configuration, in structured region 31, on shell surface 3a, be built with ledge 311 ', 312 ' and 313 ', these ledges stretch out the scope of shell surface 3a and have the diameter bigger than overall diameter d1 thus.

In this form of implementation, ledge 311 ', 312 ' and 313 ' also is configured to and makes formation sawtooth profile and form structural edge 311a ', 312a ' and 313a '.Degree of depth t1 between two adjacent ledges 311 ' to 313 ' is designed to make it to reach imaginary shell surface 3a from structural edge 311a '.Degree of depth t1 also can be bigger or littler.

Ledge 311 ' to 313 ' is preferred fully closedly around keeping bar 3 to make up.

According to the exemplary form of implementation shown in Fig. 6, structured region 31 has the part section 314 ', 315 ' and 316 ' of a plurality of cone shapes, and they make up to cascade on longitudinal axis A in succession.What can design in this form of implementation is that retaining element 10 has the interior diameter d3 greater than the overall diameter that keeps bar 3.At this, then retaining element 10 is installed to also can realize when keeping on the bar 3 be, inboard 101 and particularly flexible zone 102 to 107 free space that can snap between the ledge 311 ' to 313 ' in.

Part section 314 to 316 or 314 ' to 316 ' at the cone shape shown in Fig. 5 and Fig. 6 also only is exemplary and can changes in number and moulding.

Figure 7 illustrates a embodiment according to retaining element 10 of the present invention.In this form of implementation, retaining element 10 sheets ground makes up and only in one plane extends basically, promptly extends on plan.In addition, retaining element 10 demonstrates the annular shape of sealing.For retaining element 10 according to the present invention importantly, inboard 101 makes up and is designed to make it to be configured to and is used for being coupled to structured region 31.What can design is that interior diameter d3 is to make up with respect to the corresponding ratio of overall diameter d1 that keeps bar 3 for this reason.

In the form of implementation of retaining element shown in Figure 7 10, this retaining element has overall diameter d2.Made up the zone 102 to 107 of a plurality of flexibilities in addition, they are provided with each other equidistantly on around direction and locate by the recess in the material of retaining element 10 separated from one anotherly.In this way, the flexible region 102 to 107 that trapezoidal shape ground makes up is designed to the kayser protuberance to a certain extent, they or can be coupled in the otch 311 to 313 in the mode of kayser or be coupled between the ledge 311 ' to 313 '.

By the configuration of zone 102 to 107 this flexibility, also can realize simple and install with saving trouble and pass on the maintenance bar 3, wherein to this in according to the configuration of Fig. 5 with the zone 102 to 107 of flexibility against the moving direction bending.Reaching otch at 311 to 313 o'clock, recurvate to a certain extent flexible region 102 to 107 block forward again and kayser in these otch 311 to 313.

As shown in FIG. 7, flexible region 102 to 107 has from the degree of depth t2 at the edge of retaining element 10, and wherein recess has degree of depth t3.In addition, flexible region 102 to 107 is built with the angle segment (Winkelsegment) on the width w1, and the recess design has the angle segment on the width w2.

What can design is, the angle segment with width w1 for example has the angles of 40 degree, and the angle segment that wherein has width w2 comprises the angles of 20 degree.What can design in addition is, degree of depth t2 is about 3.9mm, and degree of depth t3 is about 1.5mm.Shown in specific embodiment in, interior diameter d3 can be about 7.2mm, wherein the overall diameter d2 of retaining element 10 shown in form of implementation in for example can be 15mm.These mentioned values also only are exemplary.

Retaining element 10 is preferred by resistant to elevated temperatures and flexible material construction.What can design is that this retaining element 10 has tungsten at least in part and/or has molybdenum at least in part.This retaining element can have the thickness (size on the direction of longitudinal axis A) of about 0.2mm.

Other explanatory views of the embodiment of retaining element 10 have been shown in Fig. 8 a to 8f, have wherein shown the annular shape and the open ring shape of sealing.For all moulding of retaining element 10 and configuration importantly, reliable fit to the structured region 31 that keeps bar is provided when keeping bar to have such structured region, and perhaps the design alternative of the interior diameter d3 of retaining element 10 must be less than the overall diameter d1 of maintenance bar 3 when keeping bar not have this structured region 31 on the other hand.Common like this can and particular configuration irrespectively guarantee all the time keeping the reliable relative position between bar, support section and these parts of retaining element to keep.Preferably, these configurations are designed to make can realize each other placed in the middle of parts in addition, and can realize in addition decaying under the situation of accelerative force effect.

Except particular configuration as shown in FIG. 2, also can design a kind of device 11, make retaining element 10 be arranged on the leading section 51 and be not completely integrated in support section 5 thus.What preferably can design in this configuration is that retaining element 10 has the flange or the contact pin of local linking at least, so it is extending on direction of longitudinal axis A and is resting at least partly on the inboard 531 of recess 53.This contact pin is thus perpendicular to extending as lower plane: the retaining element 10 according to the view of Fig. 2 extends in this plane.By the retaining element 10 (so it is positioned on the leading section 51 and also rests in addition on this inboard 531) of such structure, can guarantee fixed-site and placed in the middle.

This additional, the contact pin of local linking at least also can be set in the form of implementation according to the view among Fig. 2.Keep on the bar and during particularly at the terminal location shown in introducing, can weaken rotation or squeeze crack in this way at least in that retaining element 10 is passed.

Figure 9 illustrates the perspective schematic view of another form of implementation of retaining element 10.Retaining element 10 not merely is configured to the sheet that extends at this in a plane, but is embodied as three-dimensional structure, and its peviform ground makes up.Designed fully for this reason around sidewall 108, its shown in form of implementation medium dip ground make up.Retaining element 10 is configured to hollow truncated cones thus to a certain extent.

Figure 10 illustrates the perspective view according to another form of implementation of device 11 of the present invention, this device comprises the retaining element 10 according to the form of implementation among Fig. 9.Shown in the recess 53 of retaining element 10 at support section 5 in end-state in, retaining element 10 accurately coupling ground is positioned on the bottom of recess 53 and directly rests on this bottom and rest on inboard 531.Can realize flatly resting on inboard 531 by sidewall 108, can guarantee improved decay when impulsive force occurring thus.

Shown in form of implementation in, support section 5 frustroconical ground make up.52 direction makes up the tapered portion of support section 5 towards the end, makes end 51 have the diameter bigger than end 51.

Claims

1. retaining element, it is used for fixing the electrode (1 of electric light (I), 2) maintenance bar (3,4) and around this keep bar (3,4) support section (5,6) relative position between, and this retaining element has annular shape, wherein the inboard of annular shape (101) are configured to and are used for being coupled to the structured region (31) that keeps bar (3) in the part at least.

2. retaining element according to claim 1 is characterized in that, annular shape is closed on ring Zhou Fangxiang.

3. retaining element according to claim 1 is characterized in that, annular shape is open on ring Zhou Fangxiang.

4. each the described retaining element in requiring according to aforesaid right is characterized in that inboard (101) have following interior diameter (d3) at a position at least: this interior diameter is less than structural edge (311a, 312a, the 313a of structured region (31); 311a ', 312a ', 313a ') overall diameter.

5. each the described retaining element in requiring according to aforesaid right, it is characterized in that, the inboard of annular shape (101) is provided with at least one flexible latch elements (102 to 107) and is used to be coupled in the structured region (31) that keeps bar (3,4).

6. retaining element according to claim 5 is characterized in that, is built with the latch elements (102 to 107) of a plurality of flexibilities on inboard (101).

7. according to claim 5 or 6 described retaining elements, it is characterized in that a plurality of latch elements (102 to 107) equidistantly are provided with each other on ring Zhou Fangxiang.

8. each the described retaining element in requiring according to aforesaid right, this retaining element is by high temperature resistant and flexible material construction.

9. retaining element according to claim 8, this retaining element are at least in part by molybdenum or made up by tungsten at least in part.

10. each the described retaining element in requiring according to aforesaid right, this retaining element have at least partly around sidewall (108).

11. retaining element, it is used for fixing the electrode (1 of electric light (I), 2) maintenance bar (3,4) and around this keep bar (3,4) relative position between the support section (5), and this retaining element has annular shape, and wherein the inboard of annular shape (101) have following interior diameter (d3) in the part at least: this interior diameter is less than keeping the overall diameter (d1) of bar (3,4) in the zone of the terminal location of retaining element (10).

12. retaining element according to claim 11, it is characterized in that, go up structure at least one flexible latch elements (102 to 107) in inboard (101), and the interior diameter (d3) of going up retaining element (10) at the latch elements (102 to 107) of described flexibility is less than keeping the overall diameter (d1) of bar (3,4) in the zone of the terminal location of retaining element (10).

13. a device that is used for discharge lamp (I), particularly high-pressure discharge lamp, its have the maintenance bar (3,4), support section (5) of the electrode of being used for (1,2) and require according to aforesaid right in each described retaining element (10).

14. device according to claim 13 is characterized in that, keeps bar (3,4) to comprise structured region (31), this zone has at least one structural edge (311a, 312a, 313a; 311a ', 312a ', 313a ').

15. device according to claim 14, it is characterized in that, structured region (31) is included in and keeps bar (3,4) at least one otch in the shell surface (3a) (311,312,313), and the structural edge (311a of otch (311 to 313), 312a 313a) has following overall diameter: this overall diameter is less than or equal to and keeps the overall diameter (d1) of bar (3,4) outside this structured region (31).

16., it is characterized in that structured region (31) has the part section (314,315,316 of at least one cone shape according to claim 14 or 15 described devices; 314 ', 315 ', 316 '), and the tapered portion of cone shape make up towards being arranged on the electrode (1,2) that keeps on the bar (3,4).

17. device according to claim 14, it is characterized in that, structured region (31) has at least one ledge (311 ', 312 ', 313 '), described ledge is structured in and keeps bar (3,4) shell surface (3a) is gone up and is comprised structural edge (311a ', 312a ', 313a '), this structural edge has than keeping overall diameter (d1) the bigger overall diameter of bar (3,4) outside structured region (31).

18. each the described device according in the claim 14 to 17 is characterized in that retaining element (10) is arranged in the support section (5).

19. device according to claim 18 is characterized in that, (51) have recess (53) to support section (5) in the end, and retaining element (10) can be incorporated in this recess and can be arranged in its terminal location with accurately mating.

20. device according to claim 19 is characterized in that, looks up in the side of longitudinal axis (A), recess (53) inwardly makes up with attenuating, and has the diameter that is used for accurately being provided with to coupling retaining element (10) on inner check.