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Bulb, and bulb with reflecting mirror

A technology of reflectors and light bulbs, applied in the direction of fixtures/supports of illuminants, illuminants, etc., can solve problems such as easy disconnection

Inactive Publication Date: 2009-09-30
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, the more the number of overlapping coils is increased, the greater the amplitude of the vibration of the coil that occurs when an external force (impact force) acts on the halogen bulb, and this causes the problem of easy disconnection.

Method used

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  • Bulb, and bulb with reflecting mirror
  • Bulb, and bulb with reflecting mirror
  • Bulb, and bulb with reflecting mirror

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 2

[0110] In the halogen light bulb 14 according to Embodiment 1, the filament body 61 is constituted by a single filament coil 60 ( image 3 ), but in the halogen light bulb according to Embodiment 2, the filament body is constituted by two single-filament coils.

[0111] The halogen light bulb according to Embodiment 2 has basically the same structure as the halogen light bulb according to Embodiment 1 except that the holder is different. Therefore, the following description will focus on different parts.

[0112] exist Figure 11 (a) shows a perspective view of the holder 70 of the halogen light bulb according to Embodiment 2, and Figure 11 (b) is a perspective view of a part of a support wire 78 to be described later of the bracket 70 . exist Figure 11 In the bracket 70 shown, for the bracket 55 ( image 3 ) and members with substantially the same configuration are given the same reference numerals and detailed descriptions thereof are omitted.

[0113] The filament b...

Embodiment approach 3

[0120] In Embodiment 2, the filament body 72 is constituted by two single-filament coils 74 and 76 , whereas in Embodiment 3, the filament body is constituted by three single-filament coils. The halogen light bulb of Embodiment 3 is similar to Embodiment 2, and has basically the same structure as the halogen light bulb of Embodiment 1 except that the structure of the holder is different. Therefore, the following description will focus on different parts.

[0121] Respectively Figure 12 A perspective view of a holder 80 for a halogen light bulb according to Embodiment 3 is shown in Figure 13 A perspective view showing a state in which the single-filament coils 81 , 82 , and 83 are removed from the holder 80 is shown in . exist Figure 12 , Figure 13 In the bracket 80 shown, for the bracket 55 ( image 3 ) components with substantially the same structure are given the same reference numerals and detailed descriptions are omitted.

[0122] As described above, the filamen...

Embodiment approach 4

[0133] In Embodiment 1, the filament body 61 is configured by bending the single filament coil 60 into a substantially V shape, but in Embodiment 4, the filament body is configured in a straight state without bending the single filament coil.

[0134] The halogen light bulb of Embodiment 4 is similar to Embodiments 2 and 3, and has basically the same structure as the halogen light bulb of Embodiment 1 except that the structure of the holder is different. Therefore, the description will be made centering on different parts.

[0135] exist Figure 14 (a) shows a perspective view of a holder 90 of a halogen light bulb according to Embodiment 4, and Figure 14 (b) is a perspective view of a part of an internal lead 94 described later of the holder 90 . exist Figure 14 In the bracket 90 shown, for the bracket 55 ( image 3 ) and members with substantially the same configuration are given the same reference numerals and detailed descriptions thereof are omitted.

[0136] The f...

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PUM

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Abstract

Intended is to provide a bulb, which adopts a flat coil in a filament, which prevents a relay portion reliably from coming out from an internal lead wire and which can suppress an accidental light emission in the relay portion. The bulb comprises a filament body (61) including a single-filament coil wound in a cylindrical shape of a flat transverse section and having relay portions (60B2) on the two sides of a central portion having a filament wire wound at a substantially equal pitch and across an expanded portion (60E2) made wider than the equal pitch, and an internal lead wire (54) for supporting the relay portions (60B2). The internallead wire (54), which is introduced from the ends of the relay portions (60B2) into the single-filament coil, is lead out from the expanded portion (60E2) to the outside of the single-filament coil. The leading-out portion (54A) is folded to the end sides of the relay portions (60B2) with reference to the position of contact with a final winding (60T1) of the relay portions (60B2) on the side of the expanded portion (60E2).

Description

technical field [0001] The present invention relates to a light bulb and a light bulb with a reflector, and more particularly to a support structure for a filament coil. Background technique [0002] In the past, a halogen electric light bulb as a kind of light bulb has a coil filament and a hermetically sealed spherical shell, and the coil filament is connected to the center of the spherical shell by two internal wires as conductive support members extending from the closed part into the spherical shell. Both ends of the shaft are supported in the spherical case in a substantially parallel posture. [0003] refer to Figure 19 (a), Figure 19 (b) A description will be given of the supporting structure of the end portion on the side closer to the closed portion in a general double-layer coil filament. [0004] Such as Figure 19 As shown in (a), the double-layer coil filament 200 has a double-layer coil portion 200A that emits light when energized, and a single-coil portion...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01K1/18
CPCH01K1/18H01K1/14H01K1/16
Inventor 川越进也桥本尚隆小岛敏靖池田拓峰田孝志
Owner PANASONIC CORP