JP2013098040A - Led light - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an LED light that can attain cost reduction and miniaturization and being effective for a static electricity countermeasure.SOLUTION: In the LED light 1 having a board 3 for mounting an LED, terminals 8, a diode, and a chip resistor (electronic component), and a cover lens 4 for covering a housing 2 storing the board 3 and an opening 2a of the housing 2, the terminals 8 are soldered to the board 3, the board 3 is fitted to the housing 2 by sliding from its side, and the cover lens 4 is fixed by fitting to the housing 2 while the cover lens 4 is slid in the same direction with the board 3.

Description

  The present invention relates to an LED light using an LED as a light source.

  In recent years, LED lights that use power-saving and long-life LEDs (light-emitting diodes) as light sources are increasing. Such LED lights are suitable for spotlight-like lighting because of their high directivity, and are used for in-vehicle indoor lighting such as footlights, cup holder lights, and glow box lights.

  By the way, regarding the LED light, Patent Document 1 proposes a configuration in which a light diffusing member is arranged in a peripheral portion of a region through which light from the LED passes in order to make the illuminance uniform.

JP 2005-183193 A

  However, the LED light proposed in Patent Document 1 employs a configuration in which the terminal is molded with resin, so that there is a problem that the component cost and the mold cost increase, and the product cost eventually increases.

  Moreover, since the LED that can be used for this type of mold type LED light has a bullet shape, there is a problem that the product size becomes large.

  Furthermore, since the bullet-type LED has few variations, there is a problem that it is difficult to meet the demands for color, brightness, light distribution, and the like.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide an LED light that can be reduced in cost and reduced in size, and also effective in countermeasures against static electricity.

  In order to achieve the above object, an invention according to claim 1 is an LED light including a substrate on which an LED, a terminal, and an electronic component are mounted, a housing that accommodates the substrate, and a cover lens that covers an opening of the housing. The terminal is soldered to the substrate, and the substrate is slid and fitted into the housing from the side, and the cover lens is slid in the same direction as the substrate and is fitted and fixed to the housing. Features.

  According to a second aspect of the present invention, in the first aspect of the present invention, a fitting groove for fitting the substrate is formed on the inner surface of both side walls of the housing, and a protrusion is inserted into the fitting groove in the sliding direction of the substrate. It is characterized by projecting in a direction orthogonal to the direction.

  According to the first aspect of the present invention, since the terminal is soldered to the substrate instead of the resin mold, the component cost and the mold cost can be reduced, and the cost of the LED light as the product can be reduced. Moreover, since surface mount type LED, electronic components, such as a resistor and a diode, can be used, the LED light which is a product can be reduced in size. Furthermore, since the cover lens is slid in the same direction as the substrate insertion direction and fixed to the housing, the creepage distance from the cover lens surface to the substrate can be increased, and a high effect can be obtained for countermeasures against static electricity.

  According to the second aspect of the present invention, since the board to be fitted into the fitting groove of the housing is pressed in the fitting groove by the protrusion protruding from the fitting groove, the board is securely fitted into the housing without play. Fixed.

It is a perspective view of the LED light which concerns on this invention. It is a side view of the LED light which concerns on this invention. It is a top view of the LED light which concerns on this invention. It is a bottom view of the LED light which concerns on this invention. It is a figure of the arrow A direction of FIG. FIG. 6 is a sectional view taken along line B-B in FIG. 5. It is a perspective view of the housing of the LED light which concerns on this invention. It is a side view of the housing of the LED light which concerns on this invention. It is a figure of the arrow C direction of FIG. FIG. 10 is an enlarged detail view of a part D in FIG. 9. It is a side view of the cover lens of the LED light which concerns on this invention. It is a bottom view of the cover lens of the LED light which concerns on this invention. It is a figure of the arrow E direction of FIG. (A)-(d) is a perspective view which shows the assembly point of the LED light which concerns on this invention in the order of the process.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  1 is a perspective view of an LED light according to the present invention, FIG. 2 is a side view of the LED light, FIG. 3 is a plan view of the LED light, FIG. 4 is a bottom view of the LED light, and FIG. FIG. 6 is a sectional view taken along line BB in FIG. 5, FIG. 7 is a perspective view of the housing of the LED light, FIG. 8 is a side view of the housing, and FIG. FIG. 10, FIG. 10 is an enlarged detail view of a portion D in FIG. 9, FIG. 11 is a side view of the cover lens of the LED light, FIG. 12 is a bottom view of the cover lens, and FIG. is there.

  The LED light 1 shown in FIG. 1 to FIG. 6 is configured such that a substrate 3 is fitted and fixed to a coupler-integrated housing 2 by sliding, and a cover lens 4 covering a part of the housing 2 is disposed in the housing 2 in the same direction as the substrate 3. It is configured by sliding and fitting in and fixing.

  The housing 2 is integrally formed of a light-impermeable resin into a two-stage rectangular cylinder, part of which (the left half of FIG. 8) constitutes the substrate storage part 2A, and the other part (of FIG. 8). The right half) constitutes the coupler part 2B. A rectangular notch-shaped opening 2a is formed on the upper surface of the substrate storage portion 2A of the housing 2 as shown in FIG. As shown in FIGS. 2, 4, and 7, an engagement protrusion 2 b is provided to protrude.

  Further, as shown in FIG. 9, fitting grooves 2c having a rectangular cross section are formed horizontally in the longitudinal direction (perpendicular to the plane of FIG. 9) at opposite locations on the inner surfaces of both sides of the substrate storage portion 2A of the housing 2. As shown in FIG. 10, a protrusion 2d extending in the longitudinal direction is integrally formed on the upper surface of each fitting groove 2c downward (in a direction perpendicular to the sliding direction of the substrate 2). As shown in FIGS. 6, 9, and 10, two rectangular left and right through holes 2 f are provided in the vertical wall 2 e that partitions the substrate storage portion 2 </ b> A and the coupler portion 2 </ b> B of the housing 2.

  As shown in FIG. 6, an LED 5 as a light source, a diode 6 as an electronic component, and a chip resistor 7 are mounted on the substrate 3, and two left and right terminals 8 are attached by soldering. Here, the terminal 8 extends horizontally from the substrate 3 and passes through the through hole 2f formed in the vertical wall 2e of the housing 2 as shown in FIG. 6 and faces the inside of the coupler portion 2B of the housing 2. .

  The cover lens 4 is integrally formed of a light-transmitting resin. As shown in FIG. 11, a substantially cylindrical light distribution lens portion 4B projects from the upper surface of the flange portion 4A, and the flange portion 4A A cap portion 4C is formed below. Here, the cap portion 4C is a portion that is slid on the outside of the substrate storage portion 2A of the housing 2, and is formed into a rectangular box shape whose bottom surface and one end surface in the longitudinal direction (the right end surface in FIG. 11) are open. ing.

  Further, at the lower ends of the left and right side portions of the cap portion 4C of the lens cover 4, as shown in FIGS. 12 and 13, fitting ribs 4a extending at right angles toward the inside are provided along the longitudinal direction (left and right direction in FIG. 12). The fitting ribs 4a and the right and left side portions of the cap portion 4C correspond to the predetermined positions (the engagement protrusions 2b (see FIG. 8) formed on both side portions of the substrate housing portion 2A of the housing 2). As shown in FIGS. 11 and 12, a rectangular cut-out engaging recess 4b is formed in each of the areas where the operation is performed.

  Next, the assembly procedure of the LED light 1 composed of the housing 2, the substrate 3, and the cover lens 4 will be described below with reference to FIGS. 14 (a) to 14 (d).

  14 (a) to 14 (d) are perspective views showing the assembly procedure of the LED light 1 according to the present invention in the order of the steps. In assembling the LED light 1, first, as shown in FIG. 14 (a), the LED 5 The substrate 3 on which the diode 6 and the chip resistor 7 are mounted is inserted and assembled from one end opening of the substrate housing portion 2A of the housing 2. That is, if the left and right end portions of the substrate 3 are fitted in the left and right fitting grooves 2c formed in the substrate housing portion 2A of the housing 2, and the substrate 3 is slid in the back (arrow direction), FIG. As shown, the substrate 3 is accommodated in the substrate accommodating portion 2A of the housing 2 and fixed. In the state in which the substrate 2 is fitted and stored in the substrate storage portion 2A of the housing 2 as described above, the left and right terminals 8 extending horizontally from the substrate 3 are placed on the vertical wall 2e of the housing 2 as shown in FIG. Each of the two through holes 2f formed passes through the coupler portion 2B of the housing 2.

  Next, as shown in FIG. 14C, the cap portion 4C of the cover lens 4 is fitted into the outer surface of the substrate housing portion 2A of the housing 2, and the cover lens 4 is in the same direction as the sliding direction of the substrate 3 (arrow direction shown in the drawing). 2 and 4, the left and right engaging recesses 4b formed on the cap portion 4C of the cover lens 4 are protruded from both sides of the substrate storage portion 2A of the housing 2, as shown in FIGS. Since the engagement protrusion 2b is engaged, the cover lens 4 is attached so as to cover the substrate housing portion 2A of the housing 2 from the outside, and the LED light 1 as a product is assembled as shown in FIG. At this time, the opening 2 a formed on the upper surface of the substrate storage portion 2 </ b> A of the housing 2 is covered with the cover lens 4.

  In the LED light 1 assembled as described above, when a current is supplied to the LED 5 from a power source (not shown) through a terminal 8 and a circuit (not shown) of the substrate 3, the LED 5 is activated and the light is directed upward. The light passes through the opening 2a formed in the substrate housing portion 2A of the housing 2 and the light distribution lens portion 4B of the cover lens 4 and is directed upward while the light distribution is controlled. It is emitted and used for upper illumination.

  Thus, according to the LED lighting device 1 according to the present invention, since the terminal 8 is soldered to the substrate 3 instead of the resin mold, the component cost and the mold cost are reduced, and the cost of the LED light 1 as a product is reduced. be able to.

  Further, since electronic components such as surface mount type LEDs 5, diodes 6 and chip resistors 7 can be used, the product LED light 1 can be miniaturized.

  Furthermore, since the cover lens 4 is slid in the same direction as the insertion direction of the substrate 3 and fixed to the housing 2, a creepage distance from the surface of the cover lens 4 to the substrate 3 can be increased, and countermeasures against static electricity are taken. High effect is obtained.

  Further, in the present embodiment, as shown in FIG. 10, the protrusions 2d on the upper surfaces of the fitting grooves 2c formed in the board housing portion 2A of the housing 2 press the board 3 downward in the fitting grooves 2c. Therefore, the substrate 3 is securely fitted and fixed to the housing 2 without play.

  In the present embodiment, the lower surface of the substrate housing portion 2A of the housing 2 is not covered with the cover lens 4 in order to reduce the thickness of the product. It can be reliably protected from water.

  The LED light according to the present invention can be applied to exterior parts in addition to interior lighting (foot lights, cup holder lights, glove box lights, ambient lights, reading lights, luggage room lights) as well as waterproof structures. Is possible.

DESCRIPTION OF SYMBOLS 1 LED light 2 Housing 2A Housing | casing board accommodating part 2B Housing coupler 2a Housing opening 2b Housing engaging protrusion 2c Housing fitting groove 2d Housing protrusion 2e Housing vertical wall 2f Housing through-hole 3 Substrate 4 Cover lens 4A Cover lens flange 4B Cover lens light distribution lens 4C Cover lens cap 4a Cover lens fitting rib 4b Cover lens engagement recess 5 LED
6 Diode (electronic component)
7 Chip resistors (electronic components)
8 terminals

Claims (2)

In an LED light including a substrate on which an LED, a terminal, and an electronic component are mounted, a housing that houses the substrate, and a cover lens that covers an opening of the housing,
The terminal is soldered to the substrate, the substrate is slid and fitted into the housing from the side, and the cover lens is slid in the same direction as the substrate and is fitted and fixed to the housing. LED light to do. 2. A fitting groove for fitting the substrate is formed on an inner surface of both side walls of the housing, and a protrusion is provided in the fitting groove so as to project in a direction perpendicular to the sliding direction of the substrate. LED light of description.

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