RU2319249C1 - Revolving-bulb lamp with emission source - Google Patents

Abstract

FIELD: electrical engineering.

SUBSTANCE: proposed revolving-bulb lamp has emission source built in bulb and lamp base secured on bulb; base has inner part with slits on butt-end and outer threaded part, both joined together by means of locking device, retainer designed to prevent unidirectional rotation of base parts within one another, insulator with contact strip secured on bent inner part of base; at least one slit is provided on butt-end of base inner part; retainer is made in the form of angle pieces formed by butt-end of base and slits which are bent outside of base in turn-in direction of base threaded part.

EFFECT: reduced cost of lamps and enhanced their quality.

1 cl, 3 dwg

Description

The present invention relates to the electrical industry, in particular, improves the design of discharge lamps for general and special lighting.

A lamp with a rotating bulb and a radiation source is known, comprising a radiation source mounted in a bulb, a base fixed to it, consisting of internal and external parts connected by a latch, a locking element that prevents the base parts from rotating in each other in the same direction, of an insulator with a contact plate fixed to the inner part of the basement (advert. Reflux company, damn ZhITSU.675721.038SB).

This technical solution, taken as an analogue, allows you to change the direction of radiation using a lamp in fixtures with a standard socket for a threaded base.

The disadvantages of the analogue are the probability of violating the integrity of the cap when screwing it into the cartridge and the occurrence of a short circuit. When the contact plate of the cap abuts against the contact of the cartridge and the lamp continues to be rotated to create a certain radiation direction, forces are applied to the inner and outer parts of the cap along the axis in opposite directions, which extend the edges of the retaining ring, between which are located the parts of the cap and the outer part of the cap approaching the contact plate on the insulator.

The closest in technical essence is a lamp with a rotating bulb and a radiation source, taken as a prototype, containing a radiation source mounted in a bulb, a cap fixed on it, consisting of internal and external parts connected by a latch, a locking device that prevents rotation of the parts of the cap in one side, an insulator with a contact plate fixed to the bent inner part of the cap (floor dec. for application No. 2005105334/09 (006705) dated 02.28.05).

This technical solution, taken as a prototype, allows to simplify the assembly and achieve reliable integrity of the base and prevent the occurrence of a short circuit between its live parts.

The disadvantages of the prototype are the relatively high cost of the lamp due to the complexity of the locking device on the base, the inability to visually control its operation after assembly and the likelihood of failure in its operation when the lamp is turned out of the holder.

The objective of the invention is to reduce the cost of lamps and improve their quality.

The problem is achieved in that in a lamp with a rotating bulb and a radiation source containing a radiation source mounted in a bulb, a cap fixed to it, consisting of an inner part with slots on the end face and an external threaded part connected by a latch, of a locking device to prevent rotation of the parts the socle in each other in one direction, of an insulator with a contact plate mounted on the bent inner part of the cap, at least one slot is made at the end of the inner part of the cap the device is made in the form of corners formed by the end of the base and slots bent outward of the base towards the twisting of the threaded part on the base.

Figure 1 shows a General view of the lamp with a reflective surface on the bulb, indicated by hatching. The burner 1 is mounted in a flask 2, on which a rotating base 3 is fixed.

Figure 2 shows the assembled base, consisting of an inner 4 and an external threaded 5 parts, interconnected by a retainer 6, located in the side groove of the insulator.

The locking device consists of bent corners 7, 8, made on different parts of the base on the same level.

The contact plate 10 is mounted on an insulator 9 made with a transverse lateral groove 12 and longitudinal grooves 13. The rotation of the insulator inside the base is prevented by the bumps 11 made on the inside of the base inside the base.

Figure 3 shows a section aa of the base, which shows the bulge 11, made on the inside of the base, placed in the longitudinal grooves 13 of the insulator, and the bent corners 7 and 8.

The assembly and installation of the cap on the lamp is as follows. An insulator is inserted into the inner cylindrical part of the cap to the end in the end part so that the bulges on the inner part of the cap are inserted into the transverse grooves of the insulator. Then, the external threaded part is put on the inner cylindrical part to the stop so that the bent corners on the inner and outer parts lie on each other and then a latch is installed in the insulator groove, which securely holds the base assembly. After assembling the base, the lamp base is welded and the current-conducting conductors are welded to the inner part of the base and the contact plate mounted on the insulator.

When the lamp is screwed into the cartridge, when the insulator with the contact plate abuts against the central contact of the cartridge, the outer part of the cap stops and the inner part can be continued to rotate to create a certain radiation direction. The bent corners on the inner part of the cap slide, without interfering with the rotation of the parts of the cap in each other. If necessary, the lamp can be rotated several times around the axis, turning, for the desired location.

When the lamp is unscrewed from the cartridge, the ends of the bent corners on the inner part of the cap abut against the end of the slot on the outer part of the cap, preventing the rotation of the inner part of the cap relative to the outer one, and the cap is twisted out of the cartridge.

In accordance with the description of the application, a batch of lamps with sodium burners with a power of 250 W was manufactured in an ellipsoidal bulb with a diameter of 120 mm with a mirrored surface on the inside. The slot depth of 5 mm corners are bent to 1-2 thicknesses of the material from which the base is made.

Usually, 4 slots are made on the end part of the cap in contact with the bulb to compensate for the thermal expansion of the bulb glass during lamp operation. The manufacture of a slot on the outer part of the base and the bending of the resulting corner is carried out simultaneously with the knurling of the thread, which does not increase the cost of manufacturing the base. The tests showed a reduction in the cost of manufacturing socles, because the implementation of the locking device on the base is greatly simplified. It became possible to visually monitor the operation of the latch after assembly and even while screwing the base into the cartridge.

The application of the invention in the production of mirror sodium lamps will reduce the cost of the lamp while maintaining all the consumer properties of the lamps, which will allow for the price of lamps 250 rubles / pc. and annual production of 150 thousand units. get an economic effect of 580 thousand rubles.

Claims (1)

A lamp with a rotating bulb and a radiation source, comprising a radiation source mounted in a bulb, a cap fixed to it, consisting of an inner part with slots on the end and an external threaded part, connected by a latch, of a locking device to prevent the parts of the cap from rotating in each other in one direction , an insulator with a contact plate mounted on the bent inner part of the cap, at least one slot is made at the end of the inner part of the cap, the locking device is made in the form of corners, an image oval end of the base and slots bent outward of the base towards the twisting of the threaded part on the base.

Images