JP6560890B2 - LED lighting device - Google Patents

Description

  The present disclosure relates to an LED lighting device.

  2. Description of the Related Art In recent years, LED lighting devices using LED (Light Emitting Diode) elements, which are excellent in power saving, as light sources have become widespread due to increasing environmental awareness. An LED shelf lamp is known as a kind of LED lighting device. A merchandise display shelf used in supermarkets, home centers, and the like is provided with a number of shelves, and an LED shelf lower light is attached to the front edge of each display shelf to illuminate the merchandise.

  For example, Patent Document 1 discloses a shelf lamp that includes a long casing, a substrate that is housed in the casing and has an LED element disposed on the surface, and a power supply circuit that is disposed on the back side of the substrate. Has been.

JP 2010-213923 A

  However, in Patent Document 1, since the LED elements, the substrate, and the power supply circuit are arranged along the vertical direction, the apparatus naturally increases in size in the height direction. Further downsizing is required for the shelf light so as not to stand out.

  This indication was made paying attention to such a subject, and the object is to provide the LED lighting device which can be further miniaturized.

  In order to achieve the above object, the present disclosure takes the following measures.

That, LED lighting device of the present disclosure includes a housing having an elongated housing space, and the LED substrate on which the LED elements are arranged, a power supply circuit section for supplying power to the LED substrate, from the power supply circuit unit A board electric wire reaching the LED board; and a power supply line for supplying electric power from the outside to the power supply circuit part. The housing includes a power supply accommodating chamber for housing the power supply circuit part, and the LED board includes The power supply chamber and the substrate mounting portion are arranged so as to overlap in the depth direction which is the short direction and not overlap in the vertical direction which is the height direction. An electric wire arrangement space to which the power supply line is wired is provided on the back side of the board mounting portion, and the board electric wire is arranged in the electric wire arrangement space together with the power supply line, and the electric wire arrangement space is The substrate mounting portion and the standing piece standing up from both ends of the substrate mounting portion are surrounded, and the tip of at least one of the standing pieces approaches the other side and has a tapered opening .

In this way, the power supply chamber that houses the power supply circuit portion and the substrate mounting portion to which the LED substrate is attached are arranged so as to overlap in the depth direction, which is the short direction, and not in the vertical direction, which is the height direction. Therefore, the size in the height direction can be suppressed and the size can be reduced.

  Nevertheless, since the long electric wire arrangement space where the power supply line extending from the longitudinal end of the housing to the power supply circuit portion is wired is formed on the back side of the board mounting portion, the power supply line is defined as the power supply circuit portion. By arranging them in the same power supply chamber, the required height of the power supply line can be made unnecessary, and the height dimension can be further reduced.

The perspective view which looked at the whole LED lighting device of this embodiment from the upper part. The disassembled perspective view of each component which comprises a LED lighting apparatus. The partial sectional view of a LED lighting device. The top view which shows the LED lighting apparatus which removed the upper cover. The perspective view which looked at the longitudinal direction edge part of the housing | casing which removed the edge part cover from the downward direction. The perspective view which looked at the wiring of an electric wire, and the electric wire fixing member from upper direction. The top view which shows a mode that the upper cover cover and the power supply cover were removed.

  Hereinafter, an illumination device according to an embodiment of the present disclosure will be described with reference to the drawings.

  As shown in FIG. 1, the LED lighting device is a shelf lamp that has a long casing 1 and is attached to the front edge of the display shelf SB. The LED lighting device is attached to the display shelf SB so that the longitudinal direction Y is the left-right direction and the width direction X, which is the short direction, is the depth direction. The front X1 is the front side of the display shelf SB. The upper Z1 side in the height direction Z faces the lower surface of the display shelf SB.

  As shown in FIG. 2, the LED lighting device includes a housing 1 having an elongated housing space, an LED substrate 2 housed in the housing 1, a power supply circuit unit 3 housed in the housing 1, A power supply line 4 that supplies power from the outside to the power supply circuit unit 3 and a substrate wire 5 that extends from the power supply circuit unit 3 to the LED substrate 2 are included.

  As shown in FIGS. 2 and 3, the housing 1 includes a long base 10 having a first accommodation space SP1 opened upward and a second accommodation space SP2 opened downward, and a base. And an end cover 11 attached to the longitudinal end of the table 10. The base 10 is formed of a metal having thermal conductivity, and has a board attachment portion 10a to which the LED board 2 is attached, and also serves as a heat radiating member that receives heat from the LED board 2 and radiates heat. As shown in FIG. 1, the end cover 11 is screwed to the base 10. The end cover 11 is formed with a mounting hole 11a into which a mounting tool for mounting on the display shelf SB is inserted, and a wire insertion portion 11b for drawing an electric wire from the outside.

As shown in FIG. 3, FIG. 6 and FIG. 7, the first accommodation space SP1 is divided into two in the width direction X, and the back side of the board mounting portion 10a is an elongated wire arrangement space SP10. A space overlapping the substrate mounting portion 10a in the width direction X is a long power supply chamber SP11. As shown in FIG. 3, compact power supply accommodating chamber SP11 and the substrate attachment portion 10a is Yes so as not to overlap in and the height direction Z overlap in the width direction X, to reduce the size of the height direction Z by this Is realized. Thereby, in this embodiment, the height H of the housing | casing 1 is 16.5 mm, and the width direction length W of the housing | casing 1 is 45 mm. The housing 1 is formed with a height H of 1 / 2.5 or less with respect to the width W in the width direction. If it is this ratio, it will become inconspicuous as a shelf light.

  As shown in FIG. 3, the second accommodation space SP2 is arranged on the front side of the substrate mounting portion 10a and becomes the substrate accommodation space SP2. As shown in FIGS. 3, 6 and 7, the power supply line 4 and the substrate electric wire 5 are arranged in the electric wire arrangement space SP <b> 10. A power supply circuit unit 3 is disposed in the power supply chamber SP11. The power supply circuit unit 3 is covered with an insulating member 30.

  As shown in FIG. 3, the base 10 has upright pieces 10b and 10b that stand up from both ends in the width direction of the board mounting portion 10a. The electric wire arrangement space SP10 is formed so as to be surrounded by the board mounting portion 10a and the upright pieces 10b and 10b. In the present embodiment, the tip of one of the upright pieces 10b and 10b approaches the other side to form a tapered opening, but is not limited to this. It is only necessary that the tip of at least one of the upright pieces 10b and 10b approaches the other side. For example, the tips of both standing pieces 10b and 10b may be close to each other.

  As shown in FIGS. 2 and 3, the LED substrate 2 has a long shape, and a plurality of LED elements 20 are arranged along the longitudinal direction Y. The LED substrate 2 is accommodated in the substrate accommodation space SP2 and attached to the substrate attachment portion 10a. A translucent cover 6 is attached to the opening of the substrate housing space SP2. In the present embodiment, the LED substrate 2 is arranged in an inclined posture in which the distal end 2b farther from the power supply circuit unit 3 is directed upward than the proximal end 2a close to the power supply circuit unit 3. If the LED substrate 2 is arranged in an inclined posture as described above, it is possible to reduce the size in the width direction X. Of course, you may arrange | position along the horizontal direction, without arrange | positioning the LED board 2 with an inclination attitude | position.

  As shown in FIG. 3, the rear side surface 12 of the housing 1 that is disposed on the outer side in the width direction X of the LED substrate 2 has an upper end 12 b inclined more inward in the width direction X than the lower end 12 a. Of course, the back side surface 12 may be arranged in a standing posture along the vertical direction.

  As shown in FIGS. 6 and 7, the board electric wire 5 extends from the power supply circuit unit 3 and is arranged in the electric wire arrangement space SP10 avoiding the power supply chamber SP11. Thereby, since it is not necessary to provide a space for arranging the substrate wires 5 in the power supply chamber SP11, the power supply chamber SP11 can be downsized in the height direction Z and the width direction X. As shown in FIGS. 5, 6, and 7, the board wire 5 extends from the inside in the longitudinal direction Y to the outside in the wire placement space SP <b> 10, and overlies the board mounting portion 10 a at the longitudinal end of the housing 1, It is connected to the LED board 2 arranged on the front side. An electric wire pressing member 7 that presses the substrate electric wire 5 against the substrate attachment portion 10 a is provided at the longitudinal end of the housing 1. The electric wire pressing member 7 is accommodated in the electric wire arrangement space SP10 and presses the substrate electric wire 5 using both the standing pieces 10b and 10b as scaffolds.

  As shown in FIGS. 6 and 7, the power supply line 4 extends inward in the longitudinal direction Y from the longitudinal end of the housing 1, and is electrically connected to the power supply circuit unit 3. Two sets of power supply lines 4 are provided. One power supply line 4 extends from the outside in the longitudinal direction Y of the housing 1 to the inside and is connected to the power supply circuit unit 3 as it is. The other power supply line 4 extends from the outside in the longitudinal direction Y of the housing 1 to the inside, and then bypasses the power supply chamber SP11 and bypasses the electric wire placement space SP10, and then is connected to the power supply circuit unit 3. Yes.

  As shown in FIG. 3, the base 10 opens the first accommodation space SP1 including the power supply accommodation room SP11 and the wire arrangement space SP10 upward. As shown in FIG. 1, the upper lid cover 13, the power supply line fixing member 14, and the power supply cover 15 are attached at positions that close the first accommodation space SP <b> 1. As shown in FIG. 4, when the end cover 11, the power line fixing member 14, and the power cover 15 are attached to the base 10, a long casing main body 1 </ b> X having a work opening 1 h is configured. The The work opening 1h opens the first accommodation space SP1 including the electric wire arrangement space SP10 at the end portion in the longitudinal direction upward. The work opening 1h is used for an operator who installs the shelf light to draw an external electric wire and connect it to the power supply line 4. The upper lid cover 13 is configured to be detachable without a tool at a position where the work opening 1h is closed. Removable without a tool is a structure that can be attached and detached by a fitting structure without using a fastener such as a screw.

  In the present embodiment, the housing body 1X having the work opening 1h includes the base 10, the end cover 11, the power line fixing member 14, and the power cover 15, but is not limited thereto. The member which comprises the housing body part 1X can be changed suitably.

  As shown in FIGS. 4 and 5, when the upper lid cover 13 is removed, the wire pressing member 7 is disposed at a position where the substrate wire 5 is shielded from the work opening 1 h in the wire placement space SP10. This prevents the operator from touching the substrate wire 5.

  As shown in FIGS. 4 and 6, the power line fixing member 14 is fixed to the base 10 using a screw v, and restricts an area accessible to the operator through the work opening 1 h. The power supply line 4 is connected to an electrical connector C (for example, a wire-to-wire connector with an inner lock) that is accommodated in a space that can be accessed by an operator through the work opening 1h in the first accommodation space SP1. Yes. As shown in FIGS. 4, 6, and 7, the power supply line 4 includes a first portion 4 a that extends inward in the longitudinal direction from the electrical connector C and is disposed at a position accessible from the work opening 1 h, and a wire arrangement space. And a second portion 4b arranged in SP10. The 2nd part 4b is comprised with the electric wire thinner than the 1st part 4a. Furthermore, the power supply line 4 includes a third portion 4c between the first portion 4a and the second portion 4b. The 3rd part 4c is comprised with the electric wire thinner than the 1st part 4a. In the present embodiment, the second portion 4b and the third portion 4c have the same fineness and use the same electric wire, but are not limited thereto. You may use the electric wire from which thickness differs for the 2nd part 4b and the 3rd part 4c.

  As shown in FIG. 6, the power line fixing member 14 is fixed to the housing main body 1 </ b> X (base 10) with the first portion 4 a of the power supply line 4 interposed therebetween. Specifically, the power supply line fixing member 14 sandwiches the power supply line 4 between the upper fixing member 14a and the lower fixing member 14b. The upper fixing member 14a and the lower fixing member 14b are screwed. Two parallel ribs 10c and 10c extending in the longitudinal direction Y are formed in the base 10 at a position separating the power supply chamber SP11 and the electric wire arrangement space SP10. One of the two ribs 10c constitutes the upright piece 10b. The interval between the two ribs 10c and 10c is adapted to the diameter of the screw v, and the screw v inserted through the upper fixing member 14a constituting the power line fixing member 14 is configured to fit between the ribs 10c and 10c. ing. The lower fixing member 14b is supported so as to be slidable in the longitudinal direction Y with respect to the base 10, and when the two screws v attached to the power supply line fixing member 14 are loosened, the ribs 10c and 10c themselves become rails, The line fixing member 14 is configured to be slidable in the longitudinal direction Y so that the position can be changed.

As described above, the LED lighting device according to the present embodiment is an LED lighting device that is attached to the display shelf SB. The LED lighting device is housed in the housing 1 having a long housing space, the housing 1, and the LED element. 20 is disposed, the power supply circuit unit 3 that is housed in the housing 1 and supplies power to the LED substrate 2, and extends in the longitudinal direction Y from the longitudinal end of the housing 1 in the longitudinal direction. And a power supply line 4 for supplying the power to the power supply circuit unit 3. The housing 1 includes a power supply chamber SP11 that houses the power supply circuit unit 3, and a board attachment part 10a to which the LED board 2 is attached. Power supply accommodating chamber SP11 and board mounting section 10a, so as not to overlap in and the height direction Z overlap in the width direction X is shorter direction, it is arranged. On the back side of the board mounting portion 10a, a long wire arrangement space SP10 in which the power supply line 4 is wired is formed.

Thus, the power supply chamber SP11 that houses the power supply circuit unit 3 and the board mounting part 10a to which the LED board 2 is mounted overlap in the width direction X, which is the short direction, and do not overlap in the height direction Z. Therefore, it is possible to reduce the size while suppressing the dimension in the height direction Z. Nevertheless, since the long wire arrangement space SP10 in which the power supply line 4 extending from the longitudinal end of the housing 1 to the power supply circuit unit 3 is wired is formed on the back side of the board mounting portion 10a, the power supply line By arranging 4 in the same power supply chamber SP11 as the power supply circuit section 3, the height of the required power supply line 4 can be made unnecessary, and the dimension in the height direction Z can be further reduced.

  In the present embodiment, the LED substrate 2 is arranged in an inclined posture in which the distal end 2b farther from the power supply circuit unit 3 is directed upward than the proximal end 2a close to the power supply circuit unit 3.

  According to this configuration, since the LED substrate 2 is arranged in an inclined posture, the dimension in the width direction X of the housing 1 can be made smaller than in the case where the LED substrate 2 is arranged in a horizontal posture. It can be downsized.

  In some cases, the LED lighting device itself is attached to the display shelf SB in an inclined posture. In that case, the rear side surface of the housing may interfere with the display shelf SB, and the attachment position must be lowered. Therefore, there is a risk that the LED lighting device will be conspicuous.

  On the other hand, in the present embodiment, the rear side surface 12 disposed outside the width direction X of the LED substrate 2 in the housing 1 has the upper end 12b inclined more inward in the width direction X than the lower end 12a.

  According to this configuration, since the back side surface 12 of the housing 1 is inclined, it can be attached while avoiding interference with the display shelf SB. As a result, it becomes possible to attach the LED lighting device so as not to stand out.

  In this embodiment, the board | substrate electric wire 5 from the power supply circuit part 3 to the LED board 2 is provided. The board | substrate electric wire 5 is arrange | positioned with the power supply line 4 in electric wire arrangement | positioning space SP10. The electric wire arrangement space SP10 is formed so as to be surrounded by the board mounting portion 10a and the standing pieces 10b and 10b that stand up from both ends in the width direction of the board mounting portion 10a. The tip of the upright piece approaches the other side to form a tapered opening.

  According to this configuration, since the electric wire arrangement space SP10 has a tapered opening, wiring can be performed simply by inserting the substrate electric wire 5 and the power supply line 4 from the tapered opening, and it is difficult for each electric wire to come out and wiring is easy. Become.

  There is a possibility that the substrate wire 5 may be shaken by the transportation of the LED lighting device or the like. If the board | substrate electric wire 5 is shaken, a stress will act easily on the connection part of the board | substrate electric wire 5 and the LED board 2, and there exists a possibility of a disconnection.

  On the other hand, in this embodiment, the board | substrate electric wire 5 from the power supply circuit part 3 to the LED board 2 is provided. The board electric wire 5 extends from the inner side in the longitudinal direction Y to the outer side in the electric wire arrangement space SP10, and is placed on the LED board 2 arranged on the front side over the end of the board attaching part 10a at the longitudinal end of the housing 1. It is connected. An electric wire pressing member 7 that presses the substrate electric wire 5 against the substrate attachment portion 10 a is provided at the longitudinal end of the housing 1.

  Thus, since the wire pressing member 7 that presses the substrate wire 5 against the substrate mounting portion 10a is provided at the longitudinal end portion of the housing 1, the substrate wire 5 is not shaken and the wiring can be protected.

  In the present embodiment, the casing 1 is a long casing main body 1X having a work opening 1h that opens upward the accommodation space (first accommodation space SP1) including the electric wire arrangement space SP10 at the end in the longitudinal direction. And an upper lid cover 13 that is detachable at a position that closes the work opening 1h. The wire holding member 7 is disposed at a position where the substrate wire 5 is shielded from the work opening 1h in the wire arrangement space SP10.

  Thus, since the electric wire holding member 7 is arrange | positioned in the position which shields the board | substrate electric wire 5 from the work opening 1h, an operator does not accidentally touch the board | substrate electric wire 5, and is preferable.

  In the present embodiment, the housing 1 includes a long housing body 1X having a work opening 1h that opens upward in the housing space (first housing space SP1) at the end in the longitudinal direction, and the work opening 1h. And an upper lid cover 13 that is detachable at the closing position. The power supply line 4 is connected to the electrical connector C accommodated in the accommodation space (first accommodation space SP1), extends inward in the longitudinal direction from the electrical connector C, and is disposed at a position accessible from the work opening 1h. 1 part 4a and 2nd part 4b arrange | positioned in electric wire arrangement | positioning space SP10. The 2nd part 4b is comprised with an electric wire thinner than the 1st part 4a.

  In this way, the power line of the first portion 4a that extends inward in the longitudinal direction from the electrical connector C and is disposed at a position accessible from the work opening 1h is thickened, and the electric wire necessary for the worker to access is thickened. Can be secured. Nevertheless, the power line of the second portion 4b in the electric wire arrangement space SP10 that is not accessed by the operator can be thinned to facilitate wiring.

  In the present embodiment, a power line fixing member 14 is provided that is fixed to the housing body 1X with the first portion 4a interposed therebetween. The power supply line 4 includes a third portion 4c between the first portion 4a and the second portion 4b. The 3rd part 4c is comprised with an electric wire thinner than the 1st part 4a.

  According to this configuration, when the first portion 4a is sandwiched between the power line fixing members 14 and fixed to the housing main body 1X, the first portion 4a is removed when the first portion 4a is pulled out and connected to the electrical connector C. Since the third portion 4c is narrower than that, the electric wire is easily bent, the electric wire is easily returned, and the assembling work can be facilitated.

The conventional general LED shelf lamp has a ratio of height to width of 1: 1, and when such a product is attached to the front edge of the display shelf SB, its presence becomes conspicuous. On the other hand, in the embodiment, the power supply chamber SP11 and the board mounting portion 10a are arranged so as to overlap in the width direction X which is the short direction, so that the height H of the housing 1 is the width direction length. It is suppressed to 1 / 2.5 or less with respect to W, becomes inconspicuous, and a product having high added value can be provided.

  The present disclosure is not limited to the embodiment described above. The structure employed in each of the above embodiments can be employed in any other embodiment. The specific configuration of each unit is not limited to the above-described embodiment, and various improvements and modifications can be made without departing from the spirit of the present disclosure.

DESCRIPTION OF SYMBOLS 1 ... Housing | casing 1h ... Work opening 1X ... Housing | casing main-body part 10a ... Board | substrate attachment part 10b ... Standing piece 12 ... Back side surface 12a ... Lower end of back side surface 12b ... Upper end of back side surface 13 ... Upper lid cover 14 ... Power supply line fixation 2 ... LED board 2a ... Proximal end 2b ... Distal end 20 ... LED element 3 ... Power supply circuit part 4 ... Power supply line 4a ... 1st part 4b ... 2nd part 4c ... 3rd part 5 ... Board electric wire 7 ... Electric wire holding member SP1 ... 1st accommodation space (accommodation space)
SP11 ... Power supply chamber SP10 ... Wire arrangement space C ... Electric connector Y ... Longitudinal direction X ... Width direction (short direction)
Z: Height direction H: Height of housing W: Length in width direction of housing

Claims (5)

A housing having a long accommodating space;
An LED substrate on which the LED element is disposed;
A power supply circuit unit for supplying power to the LED substrate;
A substrate wire extending from the power supply circuit unit to the LED substrate;
A power supply line for supplying power from the outside to the power supply circuit unit,
The housing includes a power supply chamber that houses the power supply circuit unit, and a substrate mounting unit to which the LED substrate is mounted, and the power supply chamber and the substrate mounting unit are in a depth direction that is a short direction. overlap and so as not to overlap in the vertical direction is a height direction, are arranged,
On the back side of the board mounting portion, an electric wire arrangement space for wiring the power supply line is provided,
The board electric wire is arranged in the electric wire arrangement space together with the power supply line,
The wire arrangement space is surrounded by the board mounting portion and standing pieces that stand up from both ends of the board mounting portion, and the tip of at least one of the standing pieces approaches the other side and tapers. LED lighting device having an opening of   The LED lighting device according to claim 1, wherein an electric wire pressing member for pressing the substrate electric wire against the substrate attachment portion is provided in the electric wire arrangement space.   The LED lighting device according to claim 2, wherein the electric wire pressing member is arranged at a position where the substrate electric wire is shielded from above in the electric wire arrangement space.   The power supply line is connected to an electrical connector accommodated in the accommodation space, extends inward in the longitudinal direction from the electrical connector, and is disposed at a position accessible from above, and is disposed in the wire arrangement space. The LED lighting device according to any one of claims 1 to 3, wherein the second portion is configured by an electric wire thinner than the first portion. A power line fixing member for fixing to the main body of the housing with the first portion interposed therebetween;
5. The LED according to claim 4, wherein the power supply line has a third portion between the first portion and the second portion, and the third portion is configured by an electric wire thinner than the first portion. Lighting device.

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