EP2421335A1 - New design energy saving lamp - Google Patents

Abstract

Both fig.1 and fig. 2 show an induction lamp system, comprising a base (2) on which a coil (3) is wound. A glass bulb (4) encloses all the parts, including a little piece of amalgam (5). The socket (6) is used to mount the lamp in a lamp holder to provide electricity to the electronics inside the socket. The part 7 to see in the diagram is needed to cool the lamp used only for the higher power output.

The glass bulb can be any shape or form of the designs covered in this invention. Examples of the glass bulb are presented in fig. 1 and fig. 2.

The electronics to operate the lamp are inside the socket, which will give a very nice overall design. The electronics can be made in many ways, of which an example is shown in fig. 4 and fig. 5.

Any and all ways to improve the electronics, or increase total performance and/or efficiency are covered by this patent as long as the electronics are integrated in the total design.

Description

• Induction lamp system comprising a power supply unit which can supply an alternate voltage with any frequency, and a socket to connect to the input voltage which can be any frequency, wave shape or voltage in value. The lamp is provided with an induction coil; at least one electronic component is arranged between the induction coil and the input voltage. The electronic component together with the induction coil and the input voltage will let the lamp work properly which results in light in the visible color spectrum.
• The electronics will be part of the shape and integrated within the mechanical design.
• Electronics and the bulb will form a solid mechanical combination. The socket can be any shape, like E27 as shown in fig. 1. Other examples are E14, G9, GU10, GX53 and 23/G24.
Explanation of electronics as shown in fig 4 and 5.
• When power is applied to the electronics R1 and R2, C1 is charged. When the voltage across C1 reaches the threshold of the DIAC, a current flow will follow through the first winding of the pulse transformer (L1,2), generating an induction voltage. This induction voltage will be transferred to the two other windings on the same coil. As a result the top Fet opens and applies a voltage across LR1 and CR2, which will start to resonate on a frequency defined by the following formula: $$f=\frac{1}{2\pi \sqrt{\mathit{LC}}}\mathrm{.}$$

  
• A square wave voltage is built up between the two Fet's. This square wave voltage is generated in the two coils of the pulse transformer which operates the Fet's, on a frequency defined by L3,4/C3 and L5,6/C4. During the starting process, the voltage across LR1 and CR1 becomes increasingly higher, and enough power can be produced to start the lamp. When the voltage on the crossing point of the two Fet's equals zero, D1 will conduct, resulting in C1 not being charged, thus eliminating the starting process. The total process will take about 100 msec. These electronics are successfully tested in real practice and are very stable.
• Any frequency can be generated, but it is suggested that only internationally approved frequencies are used. In this particular case the frequency is 2.65 MHz and 13.5 Mhz.
• Not shown in this drawing are the parts to meet the EMC requirements and the power supply, because those will change with the amount of power generated into the antenna.
Brief description of the drawings
• Drawing 1: diagram of an example for induction lamp, E27 socket with a boll shaped bulb
• Drawing 2: diagram of an example for induction lamp, G10 socket with a rectangular shaped bulb
• Drawing 3 diagram of an induction lamp, E27 with external cooling part
• Drawing 4 diagram of the electronics for use at from DC until 10 MHz
• Drawing 5 diagram of the electronics for use above 10 MHz

Claims (4)

1. It is an objective of the invention to provide a single induction lamp with all electronics within one shape or design. The shape will be designed to fit in a standard housing or lamp holder and the produced light can be any color in the visible light spectrum. The electronics will be part of the lamp socket to give maximum space for the glass bulb. The take up power from the mains can be from 4 until 200 Watt. Together with an external Triac dimmer, the lamp can produce a lower light intensity without flickering or changing color.
2. The second objective from the invention is the electronics to provide the necessary waveform to the antenna in de glass balloon.
3. Third objectives will the very high working / lifetime from at least 128.000 hours continuous working combined with a high lumen / watt.
4. The electronics will fit in nearly every fitting

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