RU2322727C1 - Rotary-bulb lamp incorporating radiation source - Google Patents

Abstract

FIELD: electrical engineering.

SUBSTANCE: proposed rotary-bulb lamp has radiation source mounted within bulb that mounts lamp base with internal and external threaded parts joined together by means of spring-loaded retainer disposed in slot on side surface of insulator provided with contact strip; it also has locking device preventing unidirectional rotation of base parts within each other; open butt-end area of base inner part is threaded.

EFFECT: reduced manufacturing cost and enhanced quality of lamp.

1 cl, 4 dwg

Description

The invention relates to the electrical industry, in particular, improves the design of gas-discharge mirror 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 threaded parts connected by a latch, a locking element that prevents rotation of the base parts in each other in one direction, an insulator with a contact a plate fixed to the inside of the cap (Pat. PCT WO 9529500 A1 from 04/27/94, Pat. Australia 945334 from 04/27/94).

The disadvantage of the technical solution taken as an analogue is the high cost of the lamp due to the complexity of the assembly of the cap and the high probability of breaking reliable electrical contact between the inner and outer parts of the cap when screwing the cap into the cartridge, when the insulator with the contact plate rests on the contact of the cartridge, and the lamp continues to rotate to create a specific direction of radiation. Forces are applied to the inner and outer parts of the socles in mutually opposite directions along the axis, which unbend the edges of the fastener made in the form of a molded ring, between the edges of which the ends of the inner and outer parts of the socle are located, and contact between the parts of the socle is disturbed.

The closest in technical essence is a lamp with a rotating bulb and a radiation source, containing a radiation source mounted in a bulb, a cap fixed on it, consisting of internal and external threaded parts connected by a spring clip placed in a groove on the side surface of the insulator with a contact plate, locking device that prevents the rotation of the parts of the cap in each other in one direction (US Pat. RF No. 2278437 from 02.28.05.g.).

This technical solution, taken as a prototype, allows to simplify the assembly, to achieve reliable integrity of the cap when the lamp is twisted into a cartridge and to prevent a short circuit between its current-carrying parts.

The disadvantages of the technical solution are the relatively high cost of the lamp due to the need to use socle mastic for attaching the cap to the bulb, the likelihood of violating the mastic cap of the cap when using the lamp in conditions of high humidity and high temperatures, and possible cracking of the neck of the bulb in the place of attaching the cap when manufacturing and operating the lamp .

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

This object is achieved by the fact that in a lamp with a rotating bulb and a radiation source containing a radiation source mounted in a bulb, a socle is mounted on it, consisting of internal and external threaded parts connected by a spring retainer placed in a groove on the side surface of the insulator with a contact plate , a locking device that prevents rotation of the parts of the cap in each other in one direction, a thread is made on the open end region of the inner part of the cap.

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

Figure 2 shows the base, consisting of an inner part 4 and an external threaded part 5, interconnected by a latch 6. The locking device consists of a bent blade 7 and a slot 8, made on different parts of the base on the same level.

When the lamp is twisted into the lampholder, the petal slides along the slot in one direction, without interfering with the rotation of the inner part of the cap relative to the outer one. When the lamp is twisted out of the cartridge, the petal enters the slot, preventing the inner part of the cap from rotating relative to the outer one, and the cap is twisted out of the cartridge.

The insulator 9 with the contact plate 10 is placed in the inner part of the cap. Radial rotation of the insulator inside the base is prevented by the bulge 11, made on the inside of the base inside the base and included in the groove 13, made along the axis on the side surface of the insulator.

The latch 6 is made of wire with spring properties in the form of an open polyhedral ring. The latch is placed in the groove 12 on the side surface of the insulator and is located on the bent end of the outer part of the base.

The thread L. is made on the open end region of the inner part of the cap.

Figure 3 shows the molded neck of the flask with the input current 14 located in the groove 15 of the molded threaded neck and the input current 16 for insertion into the hole of the contact plate of the cap.

Figure 4 shows a view aa - section of a molded threaded neck with a groove 15.

The assembly of the cap is as follows. An insulator is inserted into the inner cylindrical part of the base until it stops in the end part, and in this case, the bulge 11 on the inner part of the base must enter a groove 13 made on the side surface of the insulator. Then, on the inner part 4, the outer threaded part of the base 5 is put on until it stops and the latch 6 is fixed, which is installed in the groove of the insulator 12 and reliably holds the base in assembled form.

During welding on the neck of the flask, the thread is formed with a groove using forming sponges. The thread on the neck of the flask corresponds to the internal size of the thread made on the inside of the cap.

The connection of the base with the brewed lamp is as follows. One input of the current lamp 14 bends and fits inside the groove 15 on the throat of the throat, the second input of the current lamp 16 is inserted into the hole of the contact plate of the cap. Then the base is screwed onto the thread on the neck of the flask and the current inputs are soldered to the inside of the base and the contact plate fixed to the base insulator. The groove on the threaded part of the neck of the bulb 15 when soldering the input of the current is filled with solder, which prevents the cap from twisting from the neck of the bulb.

When screwing the lamp into the cartridge, when the insulator with the contact plate rests on the contact of the cartridge, the lamp continues to rotate to create a certain direction of radiation. The outer part stops and the inner part rotates with the bulb to the desired location. The latch, abutting against the end part of the outer part of the base, presses it to the inner part, without violating the reliable contact of the parts of the base. If necessary, the lamp can be rotated several times around the axis for the desired location. The petal, made on the inner surface, slides along the slot, without interfering with the rotation of the inner part of the cap relative to the outer.

When unscrewing the lamp from the cartridge, the petal enters the slot, preventing the rotation of the inner part of the cap relative to the outside, 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 capacity of 250 was manufactured in an ellipsoidal bulb with a diameter of 120 mm with a mirrored surface on the inside. The tests showed that there is no violation of the contact of the cap with the bulb under various operating conditions. There is practically no tension in the glass at the neck of the bulb at the point of contact with the base. The complexity of the manufacture of lamps has decreased significantly.

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 340 rubles / pc. and annual production of 350 thousand pieces. get an economic effect in the amount of 880 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 internal and external threaded parts connected by a spring clip placed in a groove on the side surface of the insulator with a contact plate, a locking device that prevents rotation of the parts the cap in each other in one direction, on the open end region of the inner part of the cap is made thread.

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