JP2018137052A - Manufacturing method of luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manufacturing method of a luminaire capable of improving assemblability.SOLUTION: A manufacturing method of a luminaire comprises the steps of: mounting a plurality of light-emitting bodies 3 on a printed wiring board 2, which is held in a developed state, a part of which is cut out, and which is formed into a toric shape and is bendable; making both end parts of the printed wiring board 2 contact with each other to make it into a truncated conical shape; maintaining the truncated conical shape of the printed wiring board 2 by fixing a lug part 51 and a lug part 52, which are provided so as to project from the board 2, to each other in a short direction of both end parts of the printed wiring board 2; fixing both end parts of the printed wiring board 2 to each other; and cutting out the lug parts 51, 52 from the printed wiring board 2.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a method for manufacturing a lighting device.

  Conventionally, as a lighting device used in a surface inspection of a product, a ring-shaped lighting device in which a plurality of light emitters are arranged on a truncated conical concave surface may be used. As a method for manufacturing such a ring-shaped illumination device, a method of forming a truncated cone by bonding both ends of a substrate by soldering after a light emitter is implanted on an annular substrate having a partially cutout Is mentioned. However, this method has a problem that one worker has to hold the substrate in a truncated cone shape and another worker must solder it, resulting in poor working efficiency.

  On the other hand, in the manufacturing method of the illumination device disclosed in Patent Document 1, the lead of the light emitter inserted into the through hole of one end of the one end and the other end of the substrate is the other end. Overlap so as to be inserted into the empty through hole to form a truncated cone, and soldering is performed as required. According to this method, since the lead exhibits a stopper action, it is possible to perform the work of joining both ends of the substrate by one worker, and work efficiency can be improved.

JP 2002-117706 A

  However, the manufacturing method disclosed in Patent Document 1 has a problem that an excessive load is applied to the lead because the lead of the light emitter acts as a stopper. In addition, this method cannot be applied to a lighting device in which a lead is not inserted into a through hole as in the case of using a surface-mounted chip type LED.

  An object of this invention is to provide the manufacturing method of the illuminating device which can improve assembly efficiency.

  A method of manufacturing a lighting device according to the present invention includes a step of mounting a plurality of light emitters on an annular bendable printed wiring board that is held in an unfolded state, and has both ends of the printed wiring board. A step of bringing them into contact with each other to form a truncated conical shape, a first ear portion protruding from the substrate in a short direction of one end portion of the printed wiring board, and the other end portion of the printed wiring board Maintaining the truncated conical shape of the printed wiring board by fixing the second ears projecting from the board in the lateral direction of the printed circuit board, and the one end of the printed wiring board And a step of fixing the other end portion to each other and a step of cutting off the first ear portion and the second ear portion from the printed wiring board.

  The printed circuit board may be further manufactured by connecting arc-direction end portions of a plurality of arc-shaped substrates, and each of the arc-shaped substrates includes the first ear portion at one end in the arc-direction. And the second ear portion is provided at the other end in the arc direction, and the step of manufacturing the printed circuit board includes the first ear portion provided on any arc-shaped substrate and any other Fixing the second ears provided on the arc-shaped substrate to each other, fixing the end portions of any one of the arc-shaped substrates and the other arc-shaped substrate, and the first And a step of excising the ear portion and the second ear portion.

  In addition, the method includes a step of forming an easy-to-removal portion of the ear portion between the printed wiring board and the first ear portion and between the printed wiring board and the second ear portion.

  In addition, the method includes a step of forming both end faces of the printed wiring board into waveforms that match each other.

  Further, at least one of the ears protrudes in an arc direction from the end face of the printed wiring board, and in the step of making a truncated cone, the first ear and the second ear are overlapped. Features.

  According to the lighting device manufacturing method of the present invention, since the ends of the printed wiring boards are fixed in a state where the ears provided at both ends of the printed wiring boards are temporarily fixed, the printing can be performed by one operator. Fixing work between the ends of the wiring board can be performed, and work efficiency can be improved.

The perspective view of the illuminating device which concerns on embodiment of this invention. The top view which shows the board | substrate body used for manufacture of the illuminating device shown in FIG. The perspective view which shows the state by which the light-emitting body was mounted in the printed wiring board of the board | substrate body shown in FIG. It is a figure which shows the state which temporarily fixed the printed wiring board shown in FIG. 3 to the truncated cone shape, (a) is a top view, (b) is a side view, (c) is a perspective view, (d) is (a) Dd line sectional drawing of). The top view which shows the deformation | transformation form of the printed wiring board used for manufacture of the illuminating device shown in FIG. The top view which shows the board | substrate body which concerns on the modification of this invention. The principal part perspective view which shows the board | substrate body which concerns on the other modification of this invention. The principal part perspective view which shows the board | substrate body which concerns on another modification of this invention.

  Hereinafter, with reference to an accompanying drawing, a manufacturing method of an illuminating device concerning an embodiment of the present invention is explained. Referring to FIG. 1, an illuminating device 1 according to this embodiment includes a bendable printed wiring board 2 and a plurality of light emitters 3 arranged on a truncated conical concave surface of the printed wiring board 2, and a housing. H is contained and held. Each light emitter 3 is supplied with electric power from the power cable 4 via the printed wiring board 2.

  The lighting device 1 having such a configuration is manufactured as follows. First, a substrate body 5 as shown in FIG. 2 is prepared. The substrate body 5 has an annular shape with a part of the cutout, and extends from the one end of the printed wiring board 2 in the arc direction to both sides in the short-side direction. A pair of ears 51 (first ears) and a pair of ears 52 (second ears) extending from the other end in the arc direction of the printed wiring board 2 to both sides in the lateral direction. Next, a perforation (removable portion) 53 is provided between the printed wiring board 2 and each of the ear portions 51 and 52. A pair of through holes 54 are formed at both ends of the printed wiring board 2 in the arc direction.

  And after holding the board | substrate body 5 in a planar state, as shown in FIG. 3, the light-emitting body 3 is mounted on the printed wiring board 2 of the board | substrate body 5 as needed. In the example shown in FIG. 3, a bullet-type LED is used as the light emitter 3, but in the attached drawing, illustration of a through hole provided in the substrate body 5 for inserting the LED lead wire is omitted.

  Next, as shown in FIG. 4, both end surfaces 5a in the arc direction of the substrate body 5 are brought into contact with each other in the arc direction to form a truncated cone, and the ear portions 51 and 52 that are in contact with each other are temporarily fixed with staples. To fix. Thereby, the board | substrate body 5 (printed wiring board 2) is hold | maintained in truncated cone shape. In FIG. 4, the light emitter 3 is not shown.

  Next, in this state, the ends of the printed wiring board 2 are fixed by soldering or the like. For example, as shown in FIG. 4, the U-shaped pin P is inserted into both the through hole 54 provided at one end of the printed wiring board 2 and the through hole 54 provided at the other end. This is done by soldering. Thereafter, the lighting device 1 is completed by separating the ears 51 and 52 from the printed wiring board 2 along the perforation 53.

  In such a manufacturing method of the lighting device 1, the ear 51 and the ear 52 can be stapled by one worker. Further, in the stapled substrate body 5, since the printed wiring board 2 is held in a truncated cone shape by the staple needle S, the fixing of the printed wiring board 2 by soldering is also performed by one operator. Can improve the work efficiency.

  Further, unlike the above-described conventional manufacturing method, it is not necessary to use the lead of the light emitter inserted through the through hole as a stopper, so that an excessive burden is not applied to the lead. Furthermore, since a through hole is not necessarily required, a chip-type LED or the like surface-mounted on the printed wiring board 2 can also be used as the light emitter 3.

  The fixing of the ears is not limited to the staple S, and other fixing means can be used.

  As mentioned above, although the manufacturing method of the illuminating device which concerns on embodiment of this invention was demonstrated with reference to attached drawing, this invention is not limited to this embodiment, Various deformation | transformation, without deviating from the scope of this invention, Correction is possible.

  For example, in the above embodiment, the integrally formed printed wiring board 2 is used. However, the printed wiring board 2 may be formed by connecting a plurality of arc-shaped substrates. In the joining of arc-shaped substrates, soldering can be performed in a state where the ears are stapled in the same manner as described above.

  More specifically, each of the pair of arc-shaped substrates 102 shown in FIG. 5 is provided with the above-described ear portion 51 at one end portion in the arc direction and the above-described ear portion 52 at the other end portion. And the ear | edge part 51 of one arc-shaped board | substrate 102 and the ear | edge part 52 of the other arc-shaped board | substrate 102 are joined using a staple, and the edge part of a pair of arc-shaped board | substrate 102 is soldered etc. in this state Fix it. Thereafter, the staples 51 and 52 are cut off along the perforations, thereby completing the substrate body 5 having the substantially C-shaped printed wiring board 2 as described above.

  In the above embodiment, both end faces in the arc direction of the printed wiring board 2 are linear, but both end faces 2a of the printed wiring board 2 may be formed in a waveform that matches each other as shown in FIG. By making the end surface 2a corrugated in this way, when the printed wiring board 2 is formed in a truncated cone shape, the end surfaces 2a can be easily positioned in the short direction.

  In the above embodiment, the perforation 53 is used as the easy-to-removal part. However, the easy-to-removal part is not limited to the perforation 53, and for example, a V-shaped cut 55 as shown in FIG. 7 can be used.

  Further, as shown in FIG. 8, the ear 52 is projected in the arc direction from the end surface 2 a of the printed wiring board 2, and the ear 51 has a step with respect to the printed wiring board 2 in the thickness direction of the substrate body 5. By deforming the ear portion 51, the ear portion 51 and the ear portion 52 may overlap in the thickness direction when the substrate body 5 is formed into a truncated cone shape. Thus, when the ear | edge parts 51 and 52 are piled up, when making the printed wiring board 2 frustoconical, positioning in the thickness direction of both end surfaces 2a can be made easy. In the example of FIG. 8, only the ear portion 52 protrudes in the arc direction, but the ear portion 51 may also protrude in the arc direction in addition to the ear portion 52, that is, at least one of the ear portions 51 and 52. Should be protruding.

DESCRIPTION OF SYMBOLS 1 Illuminating device 2 Printed wiring board 3 Light-emitting body 51 Ear part (1st ear part)
52 Ear (second ear)
S Stapler needle P U-shaped pin

Claims (5)

Mounting a plurality of light emitters on an annular bendable printed wiring board held in an unfolded state and partially cut away;
A process in which both ends of the printed wiring board are brought into contact with each other to form a truncated cone;
A first ear provided to protrude from the substrate in the short direction of one end of the printed wiring board and a first protrusion provided to protrude from the substrate in the short direction of the other end of the printed wiring board. Maintaining the frustoconical shape of the printed circuit board by fixing the two ears to each other;
Fixing the one end and the other end of the printed wiring board to each other;
Cutting the first ear portion and the second ear portion from the printed wiring board. A step of manufacturing the printed wiring board by connecting arc-direction end portions of a plurality of arc-shaped substrates is further provided, and each of the arc-shaped substrates is provided with the first ear portion at one end in the arc-direction. The second ear is provided at the other end in the arc direction,
In the process of manufacturing the printed wiring board, the first ear provided on any arc-shaped substrate and the second ear provided on any other arc-shaped substrate are fixed to each other. The step of fixing, the step of fixing the end portions of any one of the arc-shaped substrates and the other arc-shaped substrate, and the step of cutting the first ear portion and the second ear portion. The manufacturing method of the illuminating device of Claim 1 characterized by the above-mentioned.   3. The method according to claim 1, further comprising a step of forming an ear-removable portion between the printed wiring board and the first ear portion and between the printed wiring board and the second ear portion. Manufacturing method of lighting device.   The manufacturing method of the illuminating device in any one of Claims 1-3 including the process of forming the both end surfaces of the said printed wiring board in the waveform which mutually agree | coincides. At least one of the ears protrudes in an arc direction from the end surface of the printed wiring board,
5. The method of manufacturing an illumination device according to claim 1, wherein in the step of making a truncated cone shape, the first ear portion and the second ear portion are overlapped with each other.

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