CN101535714A

CN101535714A - Substructure for an electric lamp

Info

Publication number: CN101535714A
Application number: CNA2007800415135A
Authority: CN
Inventors: 乌尔里希·哈特曼; 托马斯·诺尔; 于尔根·赖夏特; 路德维希·赖泽尔; 乌尔里希·罗尔
Original assignee: PATRA Patent Treuhand Munich
Current assignee: PATRA Patent Treuhand Munich
Priority date: 2006-11-08
Filing date: 2007-11-05
Publication date: 2009-09-16
Anticipated expiration: 2027-11-05
Also published as: EP2057411A1; WO2008055868A1; DE102006052752A1; CN101535714B

Abstract

The invention relates to a substructure for an electric lamp, comprising a cylindrical housing (2) and a base (3), wherein the housing (2) and a first partial region of the base (3) are constructed in one piece from a first plastic. An insert (4) is made of a second plastic that can be galvanized and the housing (2) and the base (3) surround the insert by being molded around it.

Description

The substructure that is used for electric light

Technical field

The present invention relates to a kind of substructure that is used for electric light, it has columniform shell and pedestal.

Background technology

Become known for the substructure of electric light, described substructure two parts ground constitutes, and has the columniform shell that can be made of plastics.On this shell, be connected with the pedestal that constitutes by metal.Two parts that separate must further interconnect in the procedure of processing so.

In this known structure, usually needing will be in the susceptor edges on the pedestal crimping mechanically on the end of punching press at shell.Whole processing and make relatively costly and therefore cost is also high.

Summary of the invention

Therefore the objective of the invention is, a kind of substructure that is used for electric light is provided, it can be realized with consumption and low cost seldom.

This purpose is achieved by the substructure with feature as claimed in claim 1.

The substructure that is used for electric light according to the present invention comprises columniform shell and pedestal.The first zone and the shell of pedestal are made of integratedly first plastics.Can allow relatively low cost ground to make by this structure.In addition, in this structure, eliminated later be connected of shell with pedestal.The pedestal punching press no longer is necessary, thereby no longer has the robustness problem that can occur in the prior art.Can allow the thin wall thickness of shell and pedestal in the zone of former in addition pedestal punching press, thereby save material.

Preferably, insert is connected with pedestal with shell and is made of second plastics at least partly.

The second portion zone of pedestal, especially external screw thread zone are made of second plastics at least partly.Therefore in the mode of qualification, different plastics can constitute the different subregion of substructure.Therefore can accurately constitute the clear and definite functional of whole parts.

Preferred and the insert in the second portion of pedestal zone constitutes integratedly.Therefore insert comprises the part of pedestal.Pedestal itself has at least two subregions that are made of different plastic materials.Therefore the functional requirement of pedestal can constitute and local qualification ground generation respectively.Insert preferably is made of second plastic material fully.It can constitute moulding.Same shell and pedestal can be made for moulding.

Preferably, insert and shell and pedestal constitute integratedly.Especially can propose, insert provides as the finished product die casting, and in order to produce further and to make substructure and carry out pressure injection-moulded partly sealing.Shell and pedestal are by this pressure injection-moulded formation of sealing so.The whole substructure that comprises shell, pedestal and insert so is made of integratedly two kinds of plastics.

The parts that are made of second plastics are electrodepositable preferably.The zone of the qualification of substructure can be by metalling so.Preferably, first plastics can not be by metalling.Therefore, can prevent that the zone that is not provided for metalling of substructure is by metalling.

The ribbon conductor preferred coated is especially electroplated on the brace of insert on the brace of insert.Therefore cancellation is as the required in the prior art bottom and the welding of contacts side surfaces.Therefore can also allow to alleviate in the mill environmental pressure.

Place of safety and fuse that ribbon conductor preferably leads on the bottom section that is formed in insert preferably separate ribbon conductor.Therefore preferably, the place of safety substitutes the wire of the dispersion of using in the prior art on the shell wall with electroplating by being coated in, and in addition preferably, substitutes the side metal line that needs in the prior art by the ribbon conductor of electroplating the ground coating.

Second plastics are preferably thermoplastic polyurethane (Urethan), especially Du Lidun (Durethan) BKH 130.First plastics are preferably polybutene (PBT), especially Bai Quan (Pocan) B4235L.

Inboard at shell and/or pedestal preferably constitutes the guide rail that at least one is used for ribbon conductor.The brace of insert can preferably insert in the guide rail of shell and/or pedestal or with guide rail and constitute integratedly so.Therefore ribbon conductor can the position accurately keeps and fixes.Guide rail preferably is formed in top and/or bottom integratedly.

Advantageously, ribbon conductor is formed on the inboard of shell and/or pedestal.

On the inboard of shell, preferably constitute the fixture that is used for fuse.Therefore fuse also can accurately keep the position.Fixture can constitute integratedly with shell.The guide rail that it is therefore preferable that this fixture and be used for ribbon conductor also is made of plastics.Can save the side metal line of dispersion by this structure.Therefore can cost saving and space.The safety lead-in wire also can omit or can constitute simply, thereby also can realize simple mounting technology.

Can propose, constitute external screw thread at least partly in the outside of pedestal, thereby substructure can screw in lamp socket.Preferably, the zone of second portion at least that comprises externally threaded subregion of pedestal is by metalling.

The substructure that is used for discharge lamp preferably constitutes, and preferably is provided with the ballast of electronics in shell.

Description of drawings

To elaborate embodiments of the invention by means of schematic diagram below.Accompanying drawing illustrates:

Fig. 1 illustrates the side view according to substructure of the present invention;

Fig. 2 illustrates the stereogram of observing from below according to the substructure of Fig. 1;

Fig. 3 illustrates another stereogram according to the shell of the substructure of Fig. 1 and Fig. 2 and pedestal;

Fig. 4 illustrates the stereogram according to the insert that separates of the present invention; And

Fig. 5 illustrates the other stereogram of substructure.

The specific embodiment

Identical in the drawings or function components identical is provided with identical reference number.

The side view that is used for the substructure 1 of discharge lamp (not shown) shown in Figure 1.Substructure 1 comprises shell 2 and the pedestal 3 that constitutes integratedly.The zone 3a of first and the shell 2 of pedestal 3 are made of first plastics, and these first plastics are Bai Quan (Pocan) B4235L in the present embodiment.In shell 2, be provided with the ballast (not shown) of the electronics of discharge lamp.The unshowned discharge vessel of discharge lamp is arranged in the area I on the substructure 1 and with substructure 1 and is connected.

Pedestal 2 has second portion zone 3b, and the size in described second portion zone is made of second plastics by the dotted line limit and the described second portion zone of level.Second plastics are Du Lidun (Durethan) BKV 130 in the present embodiment.Constitute external screw thread 31 in the outside of pedestal 3.In the 3b of subregion and in the zone that therefore constitutes in by second plastics, pedestal 3 is by metalling.

The end regions 32 away from shell 2 of pedestal 3 constitutes taper shape.At the center of this end regions 32 or constitute switching contact 33a between two parties.This can find out in the stereogram of observing from below according to the substructure of Fig. 2.In the zone of the plating of external screw thread 31, constitute another switching contact 33b (Fig. 2).

Fig. 3 illustrates another stereogram of the subelement of substructure 1.The parts that constitute pre-die casting have two

guide rails

21 and 22 in the inboard of shell 2, described guide rail is same with shell 2 constitutes integratedly and so also constitute integratedly with substructure 1.These two

guide rails

21 and 22 are parallel to each other and extend and extend on the total height of shell 2 basically in vertical direction.By these

guide rails

21 and 22, ribbon conductor can anchoring and the setting of position stability ground.Can also propose, ribbon conductor is formed on the inboard of shell 2.Especially this ribbon conductor can be installed in the zone between these

guide rails

21 and 22.

The fixture that comprises two

braces

23 and 24 on the transitional region between shell 2 and the pedestal 3 is formed on the inboard of transitional region.Can keep fuse 44 (Fig. 4) by this fixture.In addition, constitute

guide rail

34 and 35 in the inboard of pedestal 3 corresponding to guide rail 21 and 22.Therefore ribbon conductor also can keep on position stability ground.

Here also can propose, ribbon conductor is formed on the inboard of pedestal 3.In a similar fashion,

visible guide rail

21,24,34 and 35 opposites in Fig. 3, the corresponding inboard of shell 2 and pedestal 3 are provided with corresponding same guide rail as fixture.These guide rails 25 also are connected with pedestal 3 with shell 2 integratedly with 26 and 36 and 37 (Fig. 5).

The stereogram of the insert 4 of the element that conduct shown in Figure 4 separates.Insert 4 constitutes the moulding of one and is made of second plastic material.Accompanying drawing based on constitute the finished product die casting at the insert shown in Fig. 44 can propose so, this insert and pre-die casting---pressure injection-moulded sealing as shown in FIG. 3---.By insert 4 being injected in the parts according to Fig. 3, this is preferably in the bicomponent injection molding and implements.Shell 2, pedestal 3 and insert 4 constitute integratedly so.Insert 4 preferably is made of Du Lidun (Durethan) BKV 130.

Insert 4 comprises conical pin 41, and described pin is equivalent to the second portion zone 3b of pedestal 3 or constitutes the second portion zone of pedestal.

After according to pressure injection-moulded the sealing shown among Fig. 5, the

brace

42,43 that constitutes in both sides and 46 inserts in the

guide rails

21,22,34,35 and 25 and 25,26 and 36 and 37 so.So and then, ribbon conductor can be coated on

brace

42 and 43 and 46, is especially electroplated on

brace

42 and 43 and 46.But

brace

42,43 and 46 second plastics by metalling constitute for this reason.

As shown in FIG. 4, fuse 44 is installed between brace 42 and 43.By shell 2 and pedestal 3 pressure injection-moulded seal insert 4 after, this fuse inserts and comprises in the fixture of brace 23 and 24.Brace 42 with 43 and the ribbon conductor that constitutes thereon be connected with place of safety 45.On free end on

brace

42 and 46, be provided with the switching contact that is used to electroplate.

Claims

1. a substructure that is used for electric light has columniform shell (2) and pedestal (3), it is characterized in that, the first zone (3a) and the described shell (2) of described pedestal (3) are made of integratedly first plastics.

2. substructure as claimed in claim 1 is characterized in that, insert (4) is connected with described pedestal (3) with described shell (2) and is made of second plastics at least partly.

3. substructure as claimed in claim 1 or 2 is characterized in that, the zone of second portion zone (3b), the especially external screw thread (31) of described pedestal (3) is made of second plastics at least partly.

4. as claim 2 and 3 described substructures, it is characterized in that the second portion zone (3b) of described pedestal (3) constitutes integratedly with described insert (4).

5. each described substructure in the claim 2 to 4 as described above is characterized in that described insert (4) constitutes pressure injection-moulded especially partly sealing integratedly with described shell (2) and described pedestal (3).

6. each described substructure in the claim 2 to 5 as described above is characterized in that the described parts that are made of second plastics (3b, 4) can be electroplated.

7. substructure as claimed in claim 2 is characterized in that, ribbon conductor is coated, especially electroplated on the brace (42,43,46) of described insert (4).

8. substructure as claimed in claim 2 is characterized in that, place of safety (45) and fuse (44) that ribbon conductor leads on the bottom section (41) that is formed in insert (4) separate described ribbon conductor.

9. as claim 2 or 3 described substructures, it is characterized in that described second plastics are thermoplastic polyurethane, especially Du Lidun BKH130.

10. each described substructure in the claim as described above is characterized in that, constitutes at least one guide rail that is used for ribbon conductor (21,22,25,26 in the inboard of described shell (2) and/or described pedestal (3); 34,35,36,37).

11. each described substructure in the claim is characterized in that as described above, constitutes ribbon conductor on the inboard of described shell (2) and/or described pedestal (3).

12. each described substructure in the claim is characterized in that as described above, constitutes the fixture (23,24) that is used for fuse (44) in the inboard of described shell (2).

13. each described substructure in the claim is characterized in that as described above, described first plastics are polybutene, especially Bai Quan B4235L.