JP5527775B2 - Bulb / electric cap with fusing safety device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a light bulb / lamp base equipped with a fusing type safety device.

  In recent years, due to demands for energy savings and increased interest in energy savings, lamps that use LEDs with good luminous efficiency and long life as a light source have been attracting attention instead of incandescent bulbs with poor luminous efficiency and relatively short life. It has come to be used everyday.

In conventional incandescent bulbs such as tungsten filaments (hereinafter referred to as “filaments” as appropriate), since the filaments are the core of the product, the incandescent bulb itself is supplied at a low cost, and the filament is damaged. It has been regarded as the product life.
If a fusing type safety device (eg fusing fuse and holder) is installed on such an incandescent bulb, the cost increase is higher than the cost of the incandescent bulb as the main unit. When considering the product life, it is considered that there is no need or marketability to provide a fusing type safety device, or it has not been put into practical use yet.
In addition, since the inside of an incandescent bulb requires a high degree of vacuum, the light source such as a filament has a simple structure that is simply supported within a sphere maintained at a high degree of vacuum. However, it can be said that there is no need to provide a fusing type safety device that may impair the degree of vacuum.

  On the other hand, lamps that use LEDs as light sources include not only LED light emitting units (LED elements) but also LED drivers (circuits that stably light LEDs), microcomputers (computing elements that monitor and control current) ), Power supply units (circuit units that stably convert commercial voltage (eg, AC100V) to DC voltages (eg, DC5V)) and power supply control units (control voltage / current when abnormal voltage / current occurs in the circuit) Unlike conventional incandescent light bulbs, it is an advanced electronic home appliance.

  Many lamps that use LEDs as the light source are designed and manufactured using a lot of the latest electronic circuits and with sufficient consideration for product life, etc. On the other hand, lamps that use LEDs as the light source It tends to be an expensive item.

On the other hand, due to external home appliances, lightning, etc., it is widely experienced that inrush voltage and current (eg surge current and high frequency pulsed spike noise) are superposed on commercial power supply. As a result, there are cases where electronic devices are destroyed, and LED light source lamps that are advanced electronic home appliances that are not inexpensive can be safely protected from damage. Product value will be further enhanced.
However, from the point of view that sufficient consideration is given to the electronic circuit, or from the extension of the concept / idea of incandescent light bulbs such as conventional filaments, a cap with a fusing type safety device is still equipped. There is no LED light source lamp or the like.

In the patent electronic library gazette text search (public patent gazette), we searched under the following conditions and investigated individual items, but there is nothing that can be thought of as applicable.
“Summary and Claims” “Light Emitting Diode”
AND "Summary and Claim""Fuse"
80 cases were found and
"IPC" H01K1 / 66
19 cases were found

The present invention relates to a light bulb / lamp base equipped with a fusing type safety device equipped in an LED light source lamp or the like that has been conceived under the circumstances as described above, and an inrush voltage caused by external home appliances, lightning, etc. -An object of the present invention is to provide a base equipped with a fusing type safety device that can cope with the cause of disturbance of electric current and can extend its life.

The present invention focuses on the fact that the LED light source lamp does not require a degree of vacuum, that the LED light source lamp is more expensive than incandescent bulbs, and that the LED light source lamp has a long life. It is structurally easy to provide a lamp / lamp base with a fusing type safety device in the lamp, and the cost is lower than the cost of the main unit. In view of this, in an LED light source lamp that employs a cap system, a bulb / electric lamp cap is provided that has a fusing type safety device that can include a detachable fuse in the cap portion of the LED light source lamp.

  It can cope with disturbances of inrush voltage and current caused by external home appliances and lightning, etc. by fusing fuses and extending the life of LED light source lamps etc. without damaging internal circuits such as expensive LED light source lamps Can be achieved.

  Since it is assumed to be mounted on an LED light source lamp or the like, a fusing safety device having a simple structure can be obtained without considering the degree of vacuum.

  Compared to the cost of conventional LED light source lamps, etc., the LED light source lamps etc. adopting the present invention have an extremely low cost increase rate, and the marketability is low. There is something.

  Since a fusing type safety device is provided in the base part, it can be used in the same manner as a normal incandescent bulb, LED light source lamp, and the like.

In addition, since the fusing type safety device provided in the base part has a system that incorporates a fuse that can be removably attached as necessary, it is easy to check the fusing of the fuse, and it is easy to check when the fuse is fusing. By simply replacing the fuse, you can restore and use it immediately.

It is sectional drawing of a nozzle | cap | die which shows this invention, an upper half shows the A arrow cross section in FIG. 2, and a lower half shows the B 'arrow cross section in FIG. FIG. 2 is a side view of the base in the state of FIG. 1, showing a state where a fuse is inserted into the base opening, a contact and fuse presser cover is fitted while pressing the fuse, and the contact and fuse presser cover is slightly rotated. Is. FIG. 3 is a front view showing the fuse. FIG. 4 is a three-side view (a front view, a side view, and a plan view) showing the contact and fuse presser cover. FIG. 5 is a side view showing a state in which a contact and fuse presser cover is fitted into the base. 6 is a longitudinal sectional view of FIG. FIG. 7 is a side view of the base in the state of FIG. 8, in which a fuse is inserted into the base opening, a contact and fuse presser cover is fitted while pressing the fuse, and further, the contact and fuse presser cover is turned to the use state FIG. FIG. 8 is a cross-sectional view of FIG. 7, in which the upper half shows a cross section taken along arrow B ″ in FIG. 7, and the lower half shows a cross section taken along arrow C in FIG.

As shown in FIG. 1, a conventional base 10 is provided with a fuse insertion / closing mechanism.
The fuse insertion / closing mechanism includes a fuse presser cover support member 11 and a fuse presser spring support member 16. The fuse presser cover support member is provided with a butterfly wing-shaped opening 12 (FIG. 2) and a butterfly wing-shaped nail fitting groove 13. The fuse retainer spring support member 17 is provided with a power retainer fuse retainer spring 17.
The fuse presser cover support member and the fuse presser spring support member are integrated with the spiral screw member 19 by an insulator 18 as in the conventional cap.
A brass material or an aluminum material is used for the fuse retainer cover support member, the fuse retainer spring support member, and the helical screw member, and a glass substrate or a bitumen substrate is used for the insulator.
In addition, there are E26 type and E17 type in the types of conventional bulb caps, and the present invention can be used not only for these types of caps but also for other types of caps, for example, cylindrical caps. is there.

The fuse holding spring 17 for electric power take-in provided on the fuse holding spring support member 16 keeps the contact pressure with the fuse 20 constant and also takes in electric power to the internal circuit (details omitted).
In general, this power holding fuse holding spring is a coil spring with a small depth, for example, A phosphor bronze coil spring is used, but other types of springs such as a disc spring may be used.

As shown in FIG. 4, the contact / fuse presser cover 30 is provided with a butterfly blade-shaped claw 31 and an opening 32. The opening is provided for the convenience of attachment / detachment by inserting a pointed tip (eg, wire / small screwdriver) into the opening when the contact / fuse presser cover is rotated for attachment / detachment.
Further, the butterfly wing claw is provided with a slit 33 in order to have elasticity (FIG. 4).
Brass or aluminum is used for the contact and fuse presser cover.

The method of attaching the fuse 20 is as follows.
After inserting the fuse from the end of the base 10 and fitting and pushing the butterfly blade-shaped claw 31 of the contact / fuse retainer cover 30 into the butterfly blade-shaped opening 12 (FIG. 5), turn the contact / fuse retainer cover around. In this case (FIG. 2), the butterfly wing claw is fixedly supported while being fitted in the butterfly wing claw fitting groove 13 (FIG. 7).
It is desirable to provide a reverse rotation stop 14 so that the contact / fuse presser cover is not turned back (FIG. 2).
Furthermore, it is possible to provide a locking measure in the butterfly wing-shaped claw fitting groove, for example, a protrusion at the bottom of the groove so that the butterfly wing-shaped claw does not rotate more than necessary (for example, more than a quarter of a turn). Desirable (not shown).

The present invention relates to lighting that is indispensable for daily life, and is useful for preventing failures due to disturbances such as LED light source lamps.
In addition, the LED light source lamp that contributes to energy saving is highly industrially applicable in that it can reduce the number of disposals due to its failure.

DESCRIPTION OF SYMBOLS 10 Base 11 Fuse retainer cover support member 12 Butterfly blade-shaped opening 13 Butterfly blade-shaped nail fitting groove 14 Reverse rotation stop 16 Fuse retainer spring support member 17 Power take-in fuse retainer spring 18 Insulator 19 Spiral screw member 20 Fuse (tube Type)
30 Contact and Fuse Presser Cover 31 Butterfly Wing Claw 32 Opening 33 Slit

Claims (1)

A base comprising a fusing type safety device containing a detachable fuse in the base part of the LED light source lamp.

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