JP6446330B2 - lighting equipment - Google Patents

Description

  The present invention relates to a lighting fixture.

  Conventionally, the LED arranged inside the lighting cover is mounted on one side of the board, and the lighting device for controlling the lighting of the LED is arranged on the other side of the board on which the LED is mounted. Lead wires are routed from one surface side of the substrate to the other surface side for electrical connection. With regard to such an electrical connection method, a technique described in Patent Document 1 is known.

  Patent Document 1 describes a lead wire connected to a lighting circuit from a substrate on which an LED is mounted.

JP 2011-82132 A

  As described in Patent Document 1, when a lead wire for electrically connecting a substrate on which an LED is mounted and a lighting circuit is placed on the surface of the substrate on which the LED is mounted, the lead wire bends. For example, the light emitted from the LED may be blocked by the lead wire and a shadow may appear on the lighting cover.

  This invention is made | formed in view of such a subject, and it aims at providing the lighting fixture which reduces a possibility that a shadow may be seen on a lighting cover.

As a result of studying to solve the above-mentioned problem, in a lighting fixture having a light source unit having a substrate and an LED attached to one surface side of the substrate, and a lighting device positioned on the other surface side of the substrate, The substrate has a portion that communicates one surface side of the substrate and the other surface side of the substrate, is mounted so as to pass through the portion, and is connected to the LED wiring pattern by soldering on the one surface side of the substrate. a first connecting portion has a terminal block comprising a second connecting portion having one end in the other surface side of the substrate is the other end of the lead wires connected to the lighting device is connected, wherein the terminal block said portion in the mounted state to pass through, the height of the first connecting portion, on the one side of the substrate, and wherein the lower remote by irradiation range of the LED.

  According to the present invention, it is possible to provide a lighting fixture in which it is difficult to see a shadow on the lighting cover.

The perspective view from the lower part which shows the external appearance of the lighting fixture 100 of embodiment The perspective view from the lower part which shows the state which removed the light source unit 20 from the main body unit 10 of the lighting fixture 100 of embodiment. Partial sectional drawing which shows the structure of the main components of the light source unit 20 of embodiment. The perspective view of the wiring pattern 36 of the board | substrate 32 of embodiment. Sectional drawing which shows the connection of the terminal block 40 of embodiment Sectional drawing which shows the height relationship between the terminal block 40 of embodiment, and LED38 mounted in the one surface side 33. FIG. The expansion | deployment perspective view of FIG.

  Hereinafter, a form (this embodiment) for carrying out the present invention will be described with reference to the drawings. First, the overall configuration (including the internal configuration) of the lighting fixture according to the present embodiment will be described, and then the present invention technique for removing lead wires from the substrate on the LED mounting surface with the lighting fixture according to the present embodiment will be described.

  Drawing 1 is a perspective view from the lower part showing the appearance of lighting fixture 100 of an embodiment. The luminaire 100 is attached to a ceiling (support) 150. The lighting fixture 100 includes a main unit 10 and a light source unit 20 that is attached to the main unit 10 and includes a light emitting unit. Inside the main unit 10 (a space formed by attaching the light source unit 20, the same applies hereinafter), a lighting device 50 (described later with reference to FIG. 2 and the like) for controlling the lighting of the LED 38 is provided. Yes.

  Drawing 2 is a perspective view from the lower part showing the state where light source unit 20 was removed from main part unit 10 of lighting fixture 100 of an embodiment. A power terminal block 12 is fixed to the main unit 10 and a power line 14 connected to an AC power source (not shown) is connected.

The light source unit 20 includes a mounting plate 31, a terminal block cover 45, a lighting device 50, a lead wire 54, and an illumination cover 60.
Electric power is supplied from the AC power source to the lighting device 50 by electrically connecting the power supply terminal block 12 and the lighting device 50 with a connector line 52 or the like, and the lighting device 50 turns on or off the LED 38 and the intensity of light. (Light control, color control) is controlled.

  FIG. 3 is a partial cross-sectional view illustrating a configuration of main components of the light source unit 20 of the embodiment. The LED light source board unit 30 includes a board 32, LEDs 38 mounted on the board 32, and a terminal block 40. The LED light source board unit 30 is fixed to one surface side of the mounting plate 31, and an illumination cover 60 is arranged so as to cover the LED light source board unit 30, and the illumination cover 60 receives light emitted from the LED 38 and transmits / It emits light necessary as a lighting fixture due to diffusion and other effects.

  The lighting device 50 is fixed to the other surface of the mounting plate 31 opposite to the surface on which the LED light source substrate unit 30 is fixed. One end of the lead wire 54 is connected to the lighting device 50, and the other end of the lead wire 54 is connected to the second connection portion 43 of the terminal block 40 mounted on the LED light source substrate 30. The lighting device 50 may be fixed to the main unit 10.

  The technology relating to the present embodiment will be specifically described with reference to FIGS.

  FIG. 4 is a perspective view showing the substrate 32 and the wiring pattern 36, and FIG. 5 is a cross-sectional view showing the connection of the terminal block 40. FIG. 6 is a sectional view showing the height relationship between the terminal block 40 and the LED 38 mounted on the one surface side 33. FIG. 7 is a developed perspective view of FIG.

  The substrate 32 is a single-sided substrate having the wiring pattern 36 only on the one surface side 33, and a plurality of LEDs 38 are mounted on the wiring pattern 36 formed on the one surface side 33. The substrate 32 has a portion 37 that communicates the one surface side 33 and the other surface side 34 without the wiring pattern 36. The mounting plate 31 has a mounting plate portion 31a that communicates. The terminal block 40 includes a substantially rectangular parallelepiped base 41, a first connection portion 42 projecting substantially along the lower surface of the base 41 from both short sides of the lower surface of the base 41, and a second connection located inside the base 41. A member having a portion 43.

  The terminal block 40 is mounted on the board 32 as follows. First, the terminal block 40 is attached from below so as to pass through the portion 37 of the substrate 32 and the attachment plate portion 31 a of the attachment plate 31. Subsequently, the wiring pattern 36 and the first connection portion 42 of the substrate 32 are soldered on one surface side (lower surface side) 33 of the substrate 32. On the other surface side (upper surface side) 34 of the substrate 32, the lead wire 54 is passed through the opening provided on the side surface of the base portion 41, and the lead wire 54 and the second connection portion 43 are connected. Here, the lead wire 54 connects the lighting device 50 and the second connection portion.

  A first connection portion 42 that is mounted so as to pass through the portion 37 and is connected to the wiring pattern 36 of the LED 38 by soldering on one surface side of the substrate 32, and a second connection that is connected to the lighting device 50 on the other surface side of the substrate 32. In the state where the terminal block 40 which is a member including the connection portion 43 is provided, and the member (terminal block 40) is mounted so as to pass through the portion 37, the height of the first connection portion 42 is one surface side of the substrate 32. Thus, by being lower than the irradiation range (120 °) of the LED 38, it is possible to provide the luminaire 100 in which the shadow is less visible on the illumination cover 60 than when the wiring on the one surface side of the substrate 32 is formed by lead wires. Furthermore, by using the terminal block 40 which is a member including the first connection part 42 and the second connection part 43, it is possible to save time and trouble of wiring processing when twisting the lead wire, thereby improving productivity. Play.

  The substrate 32 may be a double-sided substrate having a copper foil on the other side for purposes other than wiring (such as heat dissipation).

  In the present embodiment, the communicating portion 37 has a hole shape provided in the substrate 32. However, the terminal block 40 is not limited to be mounted so as to pass through the portion 37 that connects the one surface side and the other surface side of the substrate 32, and a notch is provided at an end portion of the substrate 32 and passes through the notch. May be implemented as follows. Moreover, you may mount so that the connection part of a board | substrate may pass.

  As shown in FIG. 6, the height (h42) on the first connection portion 42 side of the terminal block 40 is a height that does not enter the irradiation range 39 (for example, 120 °) of the plurality of LEDs 38 mounted on the one surface side 33. By doing so, the terminal block 40 can reduce a possibility that a shadow is visible on the lighting cover 60 without blocking the irradiation light from the LED 38 toward the lighting cover 60.

  Furthermore, the relationship between the height (h42) of the terminal block 40 on the first connection portion side and the height (h38) of the LED 38 is h38 ≧ h42, so that the LED 38 is irradiated even if the LED 38 and the terminal block 40 are closely arranged. Since the terminal block 40 does not enter the range 39 and the shadow of the terminal block 40 on the illumination cover 60 can be eliminated, the area of the substrate can be reduced, and the material cost can be reduced.

The terminal block cover 45 is covered so as to cover the second connection portion 43 side of the terminal block 40 and is fixed to the mounting plate 31. The terminal block cover 45 suppresses a force applied from the second connection portion 43 side of the terminal block 40 to the first connection portion 42 side during construction or the like, and protects the connection portion between the first connection portion 42 and the wiring pattern 32. Play.

10 Main unit 12 Power terminal block 14 Power line
20 Light source unit 30 LED light source substrate unit 31 Mounting plate 31a Mounting plate portion 32 Substrate 33 One side 34 Other side 36 Wiring pattern 37 Part 38 LED
39 LED 38 irradiation range 40 terminal block 41 base 42 first connection 43 second connection 45 terminal block cover 50 lighting device 52 connector wire 54 lead wire 60 lighting cover 100 lighting fixture 150 ceiling (support)

Claims (2)

In a lighting fixture having a substrate, a light source unit having an LED attached to one surface side of the substrate, and a lighting device located on the other surface side of the substrate,
The substrate has a portion that communicates one surface side of the substrate and the other surface side of the substrate;
A first connection portion that is mounted so as to pass through the portion and is connected to the LED wiring pattern by soldering on one surface side of the substrate, and one end of the lead wire that is connected to the lighting device on the other surface side of the substrate . A second connection part to which the other end is connected, and a terminal block comprising:
In a state in which the terminal block is mounted so as to pass through said portion, said height of the first connecting portion, on the one side of the substrate, luminaire, wherein the lower remote by irradiation range of the LED .
  The lighting fixture according to claim 1, wherein a height of the first connection portion is lower than a height of the LED.

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