CN2149034Y - Energy-saving holder capable of prolonging bulb service life - Google Patents

Abstract

The utility model belongs to an illuminating lamp, which is characterized in that a conducting metallic sheet or a metallic post which is arranged in a lamp socket of the utility model and which plays the function of line connection is provided with thermally actuated contacts with negative temperature coefficient. The utility model can solve the problem that the impact of the over current and the strong magnetic force which are produced at the moment when the switch of the present bulb is closed. The utility model which has the function of energy saving has the advantages of long service life, convenience and simplicity.

Description

Energy-saving holder capable of prolonging bulb service life

The utility model is a kind of energy-saving lampholder that can prolong bulb life, belongs to ligthing paraphernalia.

It is the phenomenon that often runs in the daily life that bulb burns, and belongs to filament blow in the bulb that burns in a large number more than 90%.As everyone knows, light bulb filament is made with tungsten, and its cold resistance and thermal resistance differ 10～20 times.For example one 60 watts its cold resistance of bulb is 57 ohm, and thermal resistance is 850 ohm, and bulb is in the superpotential influence that switch closure moment produces in addition, makes filament moment bear the impact of the overcurrent bigger 20～30 times than rated current; On the other hand, because filament is wound into helix, in bulb, form the more piece helix tube, after passing to alternating current, N, the S utmost point are inhaled mutually between helix tube, form the magnetic force vibration, so filament also will bear than magnetive attraction big 20～30 times under the normal condition in switch closure moment and impacts.So it all is to dodge promptly disconnected in the moment one of switch closure that filament is blown the overwhelming majority.The overcurrent that switch moment produces not only endangers bulb, and also is a kind of waste to electric energy.

For addressing this problem, the technology of introducing thermistor or diode is appeared in the newspapers repeatly and is led in bulb or on the lamp holder, but because bulb is a consumable products, the filament ordinary life only is about 1000 hours, must cause bigger waste like this.The design of string thermistor is a kind of feasible scheme in switch, but because switch is of a great variety, lacks uniformity and standardization, so be difficult to popularize.The report that prolongs bulb life by the way of introducing a cover servicing unit between lamp holder and lamp socket is arranged in the prior art, but this way is more loaded down with trivial details, production process is more, and corresponding cost is inevitable higher, and is therefore still not ideal enough.

The purpose of this utility model just provides a kind of both simple and convenient, the economical and practical again bulb energy-saving lampholder of lengthening the life.

The utility model divides screw type and two kinds of lamp sockets of bayonet type.It is by on conductive metal sheet in the middle of existing screw type lamp socket bottom or the post with bayonet holder in conducting metal post or sheet on increase by a temperature-sensitive contact and realize that during work, the temperature-sensitive contact is connected in the filament loop.This temperature-sensitive contact is to make with the thermo-sensitive material with negative temperature coefficient.Its cold resistance is bigger, avoided bulb in the overcurrent of switch closure moment generation and the impact of strong magnetic force, and its thermal resistance is very little, so bulb brightness does not subtract.For example be 290 ohm temperature-sensitive contact under room temperature, be operated in 60 watts the bulb circuit that its thermal resistance only is 5.5 ohm.Use this lamp socket can prolong 3～5 times of bulb lifes.

Be described further below in conjunction with embodiment and accompanying drawing.

Fig. 1 is screw type lamp socket and bulb connection diagram.

Fig. 2 is bayonet holder and bulb connection diagram.

Among Fig. 1, (1) is bulb, (2) be lamp holder, (3) be the temperature-sensitive contact, the contact shape can be forms such as hemispherical, sheet, column, it and conductive metal sheet (4) fixing can resemble and be fixed on the sheet metal the relay tip, also can fix with scolding tin or high-temperature resistant conducting glue, and (5) are the electrodes in the middle of the lamp holder.

Among Fig. 2, (6) be bulb, (7) be lamp holder, (8) be lamp holder electrode 1, (9) be conducting metal post 1 in the lamp socket, (10) are lamp holder electrodes 2, and (12) are conducting metal posts 2 in the lamp socket, (11) be the temperature-sensitive contact that is fixed on the conducting metal post (12), its shape is with fixing identical with Fig. 1.

Claims (2)

1, a kind of energy-saving lampholder that can prolong bulb life is characterized in that rising in the lamp socket on the conductive metal sheet (4) of circuit interconnect function or the metal column (12) and has thermoelectric contact (3), (11).

2, a kind of energy-saving lampholder that can prolong bulb life according to claim 1, it is characterized in that described temperature-sensitive contact (3), (11) are to be made by the thermo-sensitive material with negative temperature coefficient, its form can be forms such as hemispherical, sheet, column.

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