CN2286269Y

CN2286269Y - Device for increasing service life of bulb

Info

Publication number: CN2286269Y
Application number: CN 96241715
Authority: CN
Inventors: 徐金男
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-11-11
Filing date: 1996-11-11
Publication date: 1998-07-15
Anticipated expiration: 2006-11-11

Abstract

The utility model relates to a device for extending the service life of a lamp bulb. The utility model is suitable for being arranged in a lamp holder of a lamp bulb of a screw type or bayonet type incandescent lamp to be used. The utility model is composed of a power type thermally-sensitive element (NTC), an incandescent lamp bulb, etc. The utility model skillfully utilizes a gap of 2.5 mm between a screw (or bayonet) of the lamp bulb and a lamp base, the utility model is screwed on the corresponding lamp base to be used, the utility model solves the problem that because a lamp filament is broken, the service life of a lamp bulb is short, and the service life of the lamp bulb can be extended by 3-5 times. The utility model has the characteristics of simple and safe structure, convenient usage and installation, wide practicability, low cost, etc. The utility model is good for being popularized and applied. The utility model is easily produced and implemented.

Description

A kind of bulb life extender

The utility model belongs to the lighting bulb accessory, specially refers to a kind of bulb life extender.Be applicable in the lamp socket that is installed in screw type or bayonet type incandescent light fitting and use.

At present, general incandescent lamp bulb, ubiquity is short service life, and its main cause is that the filament in the bulb exists quality problems such as easy fracture of wire.This often need more change the bulb to the signal lamp of highway High-Pole Lamp along the line, port, sea, rivers and the illuminating lamp of various large area lighting occasions, causes the deuce to pay to the user, brings greatly heavily maintenance work heavy to the maintenance personal.In order to solve the problems of the technologies described above, the employing a kind of power-type temperature-sensitive element (NTC) of in the incandescent lamp bulb circuit, connecting, open moment at bulb circuit like this, can avoid, cause sharply evaporation and attenuating of filament because of filament is subjected to the surge impact of big electric current overheated under cold resistance; Simultaneously because of spiral filament under the strong-electromagnetic field effect that instantaneous large-current produces, the mechanical failure of the torsional moment effect that filament took place, this destructive factor also can obviously reduce, thereby makes bulb be unlikely fracture of wire and die of old age too early, and can prolong bulb service life 3-5 doubly.

The utility model purpose: a kind of bulb life extender is provided, it is to adopt series connection a kind of power-type temperature-sensitive element (NTC) in the incandescent lamp bulb circuit, the chip of this temperature-sensitive element (NTC) is enclosed on a kind of ceramic dustcoat running-on admittedly, utilize the slit of 2mm between bulb screw mouth (or bayonet socket) and the lamp socket cleverly, it is installed in the screw socket place (or bayonet socket place) of bulb.The same handled easily when more changing the bulb with common bulb.This can save the man power and material significantly to signal lamp and the maintenance load of kind large area lighting occasion illuminating lamp and the consume of bulb of highway both sides High-Pole Lamp along the line, port, sea, rivers, guarantees the safe and reliable use of bulb simultaneously.Therefore, this life extender application scenario is extensive, helps promotion and application.

To achieve these goals, the invention scheme of this life extender is: in Figure of description, Fig. 1 provides the circuit working principle schematic of this life extender, and it mainly is made up of power-type temperature-sensitive element (NTC) (1) and incandescent lamp bulb institutes such as (2).Its course of work: when K switch close explain after, temperature-sensitive element (NTC) (1) is presented under the common room temperature, is a bigger zero-power resistance, can reduce part like this to supply voltage over half, makes bulb be operated in under-voltage condition---soft start.Thereupon, the resistance of power-type temperature-sensitive element (NTC) (1) is along with temperature rises after " curie point ", and fusion drops to a very little surplus value, after filament is heated, resistance rises immediately, and the terminal voltage of bulb but moves closer to supply voltage value, makes bulb normally luminous.Fig. 2 provides power-type temperature-sensitive element (NTC) (1) structural representation of this life extender, and it is mainly electrically contacted parts such as protective layer (6), bright tin ball (7) and fast dried resistant to elevated temperatures curing weldering mud (8) and is constituted by ceramic dustcoat (3), power type thermal resistance sheet (4), HY-914 fast binder (5), bright tin.This temperature-sensitive element (NTC) (1) is installed in bulb (2) screw socket place (9) (as shown in Figure 3), or be installed on the medial electrode (11) at bayonet socket place (10) of bulb, another medial electrode (12) copper layer excessive contact (as shown in Figure 4), and it is screwed on the corresponding lamp socket, promptly realized goal of the invention of the present utility model.About the architectural feature and the embodiment of Fig. 2, Fig. 3 and 4, in the Figure of description explanation, be illustrated.

Advantage of the present utility model:

1. simple for structure: it is series connection a kind of power-type temperature-sensitive element (NTC) (1) in the circuit of incandescent lamp bulb (2) only, utilize the slit of 2mm between the screw socket (or bayonet socket) of bulb (2) and the lamp socket cleverly, this temperature-sensitive element (NTC) (1) is installed in the screw socket place (9) (as shown in Figure 3) of bulb (2) or is installed in the bayonet socket place (10) (as shown in Figure 4) of bulb, and it is screwed on the corresponding lamp socket, promptly realized goal of the invention of the present utility model.Have that manufacture craft is simple, easy for installation, cost is low and be easy to produce characteristics such as enforcement.

2. easy to use: the same handled easily when more changing the bulb (2) with common bulb, safe and reliable, and can prolong bulb (2) service life 3-5 doubly.Solved the signal lamp of highway High-Pole Lamp along the line, port, sea, rivers and the illuminating lamp of various large area lighting occasions, the often maintenance work that need more change the bulb, the man power and material who has saved big weight.This life extender application scenario is very extensive, helps promotion and application.

Below in conjunction with Figure of description, architectural feature of the present utility model and embodiment are further described.

Fig. 1 provides the circuit working principle schematic of this life extender.

Fig. 2 provides the structural representation of the power-type temperature-sensitive element (NTC) (1) of this life extender.

Fig. 3 provides the screw type incandescent light fitting structural representation that this life extender is installed.

Fig. 4 provides the bayonet type incandescent light fitting structural representation that this life extender is installed.

Provide below that embodiment: Fig. 2 mainly electrically contacts protective layer (6), bright tin ball (7) by ceramic dustcoat (3), power type thermal resistance garden sheet (4), HY-914 fast binder (5), bright tin and the fast resistant to elevated temperatures curing weldering mud (8) of doing waits and partly constituted.Be stained with HY-914 fast binder (5) around the silvered face with thermistor garden sheet (4) earlier; be pressed on the apical pore outer wall step of ceramic dustcoat (3); another silver-plated unilateral bright tin plane in the melting welding of going up at thermistor garden sheet (4); its thickness is that the bright tin of 0.2mm electrically contacts protective layer (6); and in melting welding on another silvered face, exceed the bright tin ball (7) of ceramic dustcoat (3) 0.2mm; again garden sheet (4) up and down around and do resistant to elevated temperatures curing and weld mud (8) soon on the coated in the slit between the inwall of ceramic dustcoat (3); to guarantee to be equipped with enough mechanical strengths and good electrical contact; the total height of being touched protective layer (6) by the outer surface of bright tin ball (7) to bright tin electricity is 2.5mm, promptly assembles the power-type temperature-sensitive element (NTC) (1) of this life extender.And it is installed in bulb (2) screw socket place (9) (as shown in Figure 3), or be installed on the medial electrode (11) at bayonet socket place (10) of bulb (2), another medial electrode (12) copper layer excessive contact (as shown in Figure 4), utilize the slit of 2.5mm between bulb screw mouth (or bayonet socket) and the lamp socket cleverly, it is screwed on the corresponding lamp socket, safe and reliable.The unit for electrical property parameters of relevant power temperature-sensitive element (NTC) (1) is according to the power parameter specification of corresponding incandescent lamp bulb and supporting use, as power-type temperature-sensitive element (NTC) (1) supporting use with the power parameter specification of corresponding incandescent lamp bulb that can produce different class specifications such as 15W, 25W, 40W, 60W, 75W, 100W, 150W, 200W respectively.

Promptly constitute the utility model according to above-mentioned making---a kind of bulb life extender.

Claims

1. bulb life extender of being formed by power-type temperature-sensitive element (NTC) (1) and incandescent lamp bulb (2); it is characterized in that power-type temperature-sensitive element (NTC) (1) is to be connected in incandescent lamp bulb (2) circuit, it mainly electrically contacts protective layer (6), bright tin ball (7) and the fast resistant to elevated temperatures curing weldering mud (8) of doing by ceramic dustcoat (3), power type thermal resistance garden sheet (4), HY-914 fast binder (5), bright tin and is constituted.

2. life extender according to claim 1; it is characterized in that melting welding has the bright tin ball (7) that exceeds ceramic dustcoat (3) 0.2mm on the silvered face of thermistor garden sheet (4) of temperature-sensitive element (NTC) (1); coated has the fast resistant to elevated temperatures curing weldering mud (8) of doing around the reaching up and down of garden sheet (4) and in the slit between the inwall of ceramic dustcoat (3), by the outer surface of bright tin ball (7) extremely the bright tin total height that electrically contacts protective layer (6) be 2.5mm.

3. life extender according to claim 1, it is characterized in that temperature-sensitive element (NTC) (1) is installed in the screw socket place (9) of bulb (2), or be installed on the medial electrode (11) at bayonet socket place (10) of bulb, another medial electrode (12) is with copper layer excessive contact.