JPH0411981B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is a lighting lamp, which has one side crushed.
The lamp bulb includes a lamp bulb having a power supply portion guided through the collapsed portion, a metal holding member for fixing the lamp bulb, a socket sleeve made of plastic in the shape of a socket, and at least two socket contact portions. The present invention relates to a type of socket in which the bottom plate of the socket sleeve has a hole through which the power supply part passes.

BACKGROUND OF THE INVENTION A lamp of this type is known, for example from German Utility Model Registration No. 8201526, and is designed to close off the headlight of a motor vehicle in a gas-tight manner at the top opening. For this purpose, at least one groove is provided around the periphery of the plastic socket sleeve with a sealing ring, which rests on the neck of the reflector of the headlamp. The power supply of this lamp is guided through an opening in the bottom of the socket sleeve and an opening in the socket contact aligned with the opening, and is further connected to the socket contact so that the opening in the socket contact is also It is designed to be closed airtight. Such welding methods are extremely expensive and complex.

Problem to be Solved by the Invention The problem to be solved by the present invention is to improve the lighting lamp of the type mentioned at the beginning, and seal the lighting lamp from the bottom of the socket in a simple manner to connect the power supply part and the socket connection part. The joints between the two should also be constructed so as to be protected against weather and mechanical influences.

Means for Solving the Problems The structure of the present invention which solves the above-mentioned problems is such that a connecting member made of an insulating material is attached to the end of the socket sleeve on the opposite side from the lamp bulb,
The connecting member has a wall portion through which the socket contact is guided and forms a hollow space together with the bottom plate of the socket sleeve, in which the connection between the power supply and the socket contact is formed. section is arranged.

The socket contact part can also be fixed by being supported at its end, which projects into the hollow space, in another wall part. The opening through the bottom plate of the socket sleeve is formed only by a hole for the power supply. However, since the diameter of this opening is only slightly larger than the diameter of the feed part itself, the hole can be easily closed afterwards. Closing of the hole may also be accomplished by melting the material of the socket sleeve that already surrounds the hole in the form of a collar. In a further advantageous embodiment, it is also possible to close these openings with a resin made of plastic (for example silicone). Closing with this resin can be easily accomplished from a manufacturing technology standpoint.

The socket sleeve is made of a heat resistant plastic material capable of withstanding the heat dissipated from the lamp head. The connecting member can be made from inexpensive plastic. Bonding of the socket sleeve and the connecting member to each other takes place by means of ultrasonic heating. At this time, a nipple or a protrusion is integrally molded, and the nipple or protrusion is adapted to engage the other part on the back side in a molten state.

Embodiment The illustrated lighting lamp for a motor vehicle headlight consists of a lamp bulb 1, 21 which is crushed on one side and has one (FIG. 4) or two (FIG. 1) light source bodies 2, 22. It's on. The power supply parts 3 and 23 are guided through and drawn out from the collapsed part of the illumination light. The lamp in both these cases is a glow lamp in which a halogen additive is added to the inert gas.
The lamp bulbs 1, 21 are surrounded by metal sleeves 4, 24 at the collapsed portion.
These sleeves 4, 24 are part of the holding members 5, 25 and are connected to plastic socket sleeves 7, 27 via integrally molded webs 6, 26.
is combined with

For this purpose, the lower ends of the webs 6, 26 have a bulge, which has a cutout, so that both parts, i.e. the web 6 and the socket sleeve 7 or When joining the web 26 and the socket sleeve 27, the material of the socket sleeves 7, 27 can be forced in by high frequency heat. This ensures a fixed and reliable connection.

The socket sleeves 7, 27 themselves consist of a plastic piece in the form of a socket, with their open ends directed towards the lamp bulbs 1, 21. Advantageously, the plastic of the socket sleeve 7, 27 has a particularly high heat resistance. This is because burning lamps generate high temperatures of up to 240°C. Plastics that can be used are, for example, polyphenylene sulfide reinforced with glass fibers and mineral fillers.

The bottom plate of the socket sleeves 7, 27 is connected to the power supply section 3,
It has a hole 8 (not shown in FIG. 4) for guiding the hole 23 through it. The diameter of this hole 8 is only slightly larger than the diameter of the current supply 3, 23 itself. The integrally molded conical recess 9 facilitates the passage of the conductor. In order to seal the socket sleeve 7 to the lamp bulb 1, in the embodiment shown in FIG. 1, the hole 8 is closed by applying resin to the back side of the bottom plate.

The socket contact portion 10 of the lamp shown in FIG. 1 is supported in a slit-shaped blind hole 11,
A socket contact portion 10 is fitted into this blind hole 11 without any gaps. A power supply 3 extending through the bottom plate is welded to the socket contact 10 on the back side of this bottom plate. In this case, two of the four power supplies 3 are connected by one end of each of the two light sources 2 to only one socket contact 10 (earth contact).

This light socket sleeve unit includes:
A connecting member 12 having a through-guiding portion of the socket contact portion 10 is fitted from below. This connecting element 12 is constructed in such a way that the connection point between the power supply part 3 and the socket contact part 10 is arranged in a closed hollow chamber 13. Advantageously, the resin provided for closing the hole 8 fills this entire cavity 13 and thus seals the entire passage through which the socket contact 10 passes in the connecting part 12.

The socket sleeve 7 and the connecting member 12 are joined to each other by ribs. For this riveted connection, a nipple 14 is installed on the back side of the socket sleeve 7.
is integrally molded. The nipple 14 passes through the opening in the connecting member 12 and is deformed by ultrasonic waves. The connecting member 12 itself may consist of a plastic material which is not as heat resistant as the material of the socket sleeve 7. This is because the connecting member 12 does not reach such a high temperature. The advantage of this construction is that, in addition to the fact that the two-part construction of the socket is technically efficient, the lamp can be manufactured economically.

The connecting member 32 of the illumination light shown in FIG. 4 is configured in the shape of a tip. The socket contact 30 is guided through a side wall portion of the connecting member 32. The end of the socket connection 30 protruding into the hollow space 33 is supported by a projection 28 on the wall section opposite the wall section with the penetration for the socket contact 30.
It is carried out by. This projection 28 cooperates with a groove in the socket contact 30.

In this embodiment of the lamp according to the invention, the connecting member 32 is fastened to the socket sleeve 27 before the power supply part 23 is connected to the socket contact part 30. This fixation is effected by a projection integrally formed on the connecting member 32 by melting the material of this projection and then pouring it into a continuous groove 29 located in the socket sleeve 27.

The connecting element 32 has an opening for accessing the cavity 33 for the working process of connecting the power supply part 23 and the socket contact part 30. After the welding process the opening is closed by a lid 40.

This lid 40 has on the inside a projection 41 which cooperates with another groove in the socket contact 30.
Since the socket contact portion 30 is also secured in the axial direction, it will not fall off when the insertion portion is pulled out.

In this embodiment, the socket is sealed by a collar 42 that is integrally formed in the hole for guiding the power supply part 23 through it.
3 is passed through and guided, and then melted and brought into close contact with the power supply section 23. This sealing can also be achieved by pouring a resin (for example silicone rubber) into the hollow chamber.

In both embodiments, sleeves 15, 45 surrounding the socket contacts 10, 30 are integrally molded onto the connecting parts 12, 32 and are provided for reception in the plug-in part. . Therefore, the socket contact parts 10, 30
are protected as far as possible against moisture and therefore against corrosion to ensure good contact properties. To prevent the insertion part from coming apart unexpectedly, the sleeve 15,
45 is provided with protrusions 16, 46.

[Brief explanation of drawings]

1 is a side view of a lamp with a sectioned socket according to a first embodiment of the invention; FIG. 2 is a plan view of the lamp shown in FIG. 1; and FIG. 3 is a side view of the lamp shown in FIG. FIG. 4 is a side view of a lamp with a partially cut-away socket according to a different embodiment of the invention from FIG. 1...Lamp bulb, 2...Light source body, 3...Power supply part,
4... Sleeve, 5... Holding member, 6... Web, 7...
Socket sleeve, 8...hole, 9...conical recess, 1
0... Socket contact portion, 11... Blind hole, 12... Connection member, 13... Hollow chamber, 14... Nipple, 15... Sleeve, 16... Protrusion, 21... Lamp bulb, 22...
Light source body, 23...Power supply unit, 24...Sleeve, 25...
Holding member, 26... Web, 27... Socket sleeve, 28... Protrusion part, 30... Socket contact part, 32
...Connecting member, 33...Hollow chamber, 40...Lid, 41...Protrusion, 42...Brim, 45...Sleeve, 46...Protrusion.

Claims (1)

[Scope of Claims] 1. A lamp bulb 1, 21 which is an illumination light and has a power supply part 3, 23 that is crushed on one side and is guided through the crushed part, and a metal that fixes the lamp bulb 1, 21. holding members 5, 25 made of plastic; socket sleeves 7, 27 made of plastic;
The socket sleeve 7, 27 has a through hole 8 for passing the power supply part 3, 23 through the bottom plate of the socket sleeve 7, 27. 7,
A connecting member 12, 32 made of an insulating material is attached to the end of the lamp bulb 27 opposite to the lamp bulb 1, 21, and the connecting member 12, 32 is guided through the socket contact portion 10, 30. It has a wall portion which together with the bottom plate of the socket sleeve 7, 27 forms the hollow chamber 13, 33, and the hollow chamber 13, 3
3, the power supply part 3, 23 and the socket contact part 10, 3
1. An illumination lamp characterized in that a connecting point between 0 and 0 is arranged. 2. The diameter of the hole 8 for passing the power feeding parts 3, 23 is slightly larger than the diameter of the power feeding parts 3, 23 themselves.
An illumination lamp according to claim 1. 3. The illumination lamp according to claim 2, wherein the hole 8 is enlarged in the shape of a hopper on the side of the bottom plate opposite to the lamp bulbs 1, 21. 4. A collar 42 is integrally molded around each hole 8, and the material of the collar 42 is melted after passing through the power supply part 23.
The lighting lamp mentioned in the section. 5 At least the hole 8 after guiding the power feeding part 3 through the hole 8
3. The lamp according to claim 2, wherein the lamp is closed by a plastic resin. 6. The lighting lamp according to claim 5, wherein the plastic resin is silicone resin. 7. A lamp according to claim 1, characterized in that means 11, 28, 41 are provided for fixing the socket contacts 10, 30 to at least another wall section of the hollow chambers 13, 33. 8 The means for fixing the socket contact part 10 is the blind hole 1
1. The illumination lamp according to claim 7, which is 1. 9 a projection 2 in which the means for fixing the socket contact 10 cooperates with a groove at the socket contact 30;
8.41, the illumination lamp according to claim 7. 10. The lamp according to claim 1, wherein the socket sleeves 7, 27 are made of a heat-resistant plastic material. 11. The lamp according to claim 1, wherein the connecting members 12, 32 are made of plastic. 12 Socket sleeves 7, 27 and connecting member 1
2 and 32 are indissociably bonded to each other,
An illumination lamp according to claim 10 or 11. 13. The lamp according to claim 12, wherein the socket sleeve 7 and the connecting member 12 are connected to each other by ultrasonic riveting. 14. The lamp according to claim 12, wherein the socket sleeve 27 and the connecting member 32 are bonded to each other by ultrasonic heating. 15 Socket connection part 1 to connection members 12, 32
2. The lamp according to claim 1, wherein the sleeves 15, 45 surrounding the tubes 0, 30 are integrally molded. 16 The holding members 5, 25 connect to the socket sleeves 7, 27 via the two corner-bent webs 6, 26.
An illumination lamp as claimed in claim 1, which is coupled to. 17 Holding members 5, 25 and socket sleeve 7,
17. The lighting lamp according to claim 16, wherein the lamps 27 and 27 are connected to each other by high-frequency heating. 18. The webs 6, 26 of the holding elements 5, 25, in the region of their connection with the socket sleeves 7, 27, each have an integrally molded ridge, which 18. An illumination lamp according to claim 17, which has holes into which the material of the socket sleeves 7, 27 is pushed during high-frequency heating. 19. The lamp according to claim 1, wherein the lamp bulb 1, 21 is filled with an inert gas and a halogen additive.