KR101302885B1 - Lighting fixture - Google Patents

Abstract

In the positional relationship between the light incident end face of the light guide plate and the light emitting element, there is provided a lighting device that can be easily arranged and ensures an appropriate positional relationship.
According to the present invention, a plurality of light emitting elements 61 mounted in a substantially linear shape along the longitudinal direction and end portions in the longitudinal direction are positioned in a direction orthogonal to the longitudinal direction of the light emitting elements 61 mounted in the substantially linear shape. A light-emitting element 61 having a substrate 61 having a connecting connector 64 arranged outside the gate and a light incidence end face 72 on the outer circumference, and mounted on the substrate 61 on the light incidence end face 72. It is a lighting fixture provided with the light guide plate 7 arrange | positioned so that the exiting light of this may be incident.

Description

Lighting fixtures {LIGHTING FIXTURE}

Embodiment of this invention relates to the lighting fixture which performs illumination using a light guide plate using light emitting elements, such as LED as a light source.

In recent years, with the high output, high efficiency, and widespread use of LED, the lighting fixture which can expect the long life to be used indoors or outdoors using LED as a light source has been developed. The luminaire is provided with a plurality of LEDs mounted on a substrate to obtain a predetermined amount of light, and is used as a so-called direct-attached type base light, which is directly attached to, for example, a ceiling surface.

However, the light emitted from the LED has a strong directivity, which is likely to cause glare, and also causes an unbalance in luminance. Therefore, in order to suppress glare and to improve the balance of the light emitting surface, a new luminaire for illuminating the light guide plate has been developed.

In the luminaire which illuminates using such a light-guide plate, it is necessary to arrange | position the light-incidence cross section and light emitting elements, such as LED, suitably so that the light radiate | emitted from light emitting elements, such as LED, may enter into the light-incidence end surface of a light guide plate. .

Japanese Unexamined Patent Publication No. 2009-21200 Japanese Unexamined Patent Publication No. 2009-283197

However, a connection connector for supplying electric power to the light emitting element is disposed on a substrate on which a light emitting element such as an LED is mounted. In view of these components, the light incidence cross section of the light guide plate and the positional relationship between the light emitting element are appropriately provided. It may be difficult to maintain.

SUMMARY OF THE INVENTION The present invention has been made on the basis of the above, and an object thereof is to provide a lighting device that can be easily arranged and can secure an appropriate positional relationship in the positional relationship between the light incident end face of the light guide plate and the light emitting element.

A lighting device according to an embodiment of the present invention includes a plurality of light emitting elements mounted in a substantially linear shape along the longitudinal direction, and a direction perpendicular to the length direction of the light emitting elements mounted in the substantially linear shape as end portions in the longitudinal direction. It has a board | substrate with a connection connector arrange | positioned out of the position. A light guide plate has a light incidence cross section at an outer circumferential portion and is arranged so that the outgoing light of the light emitting element mounted on the substrate is incident on the light incidence cross section.

According to the embodiment of the present invention, in the positional relationship between the light-emitting element and the light incidence end face of the light guide plate, it is possible to provide a lighting apparatus that can be easily disposed to face each other properly.

1 is a perspective view showing a lighting device according to an embodiment of the present invention.
2 is an exploded perspective view of the lighting device.
Figure 3 is a perspective view of the instrument body seen from the rear side.
4 is a cross-sectional view taken along the line XX in FIG. 3.
FIG. 5 is an enlarged view of part A in FIG. 4.
FIG. 6 is an enlarged view of part B in FIG. 4.
7 is a perspective view showing the substrate and the attachment member separately in the light source portion of the mechanism main body.
Fig. 8 is a sectional view showing the state of attachment to the ceiling surface of the luminaire.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described with reference to FIGS. In addition, the wiring connection relationship by a lead wire etc. is abbreviate | omitted and shown in each drawing. In addition, in each figure, the same code | symbol is attached | subjected to the same part, and the overlapping description is abbreviate | omitted.

The lighting fixture of this embodiment is a type | mold used by being attached to the hanging sealing body as a wiring mechanism attached to the apparatus attachment surface, and illuminating indoors, for example using a light guide plate.

1 to 4, the lighting apparatus is an adapter A which is electrically and mechanically connected to the fixture main body 1 and the clamping sealing body Cb as the wiring mechanism provided on the ceiling surface C as the fixture attachment surface. (Refer to FIG. 2 and FIG. 8) and the infrared remote control transmitter R are provided. The mechanism main body 1 is formed in the substantially square external appearance as shown in FIG. 1, making the front side into the irradiation surface of light, and making the back side into the attachment surface to the ceiling surface C. As shown in FIG.

As representatively shown in FIG. 2, the mechanism main body 1 includes a lighting device 2, a support chassis 3, a center chassis 4, an adapter guide 5 as an attachment portion, and a light source unit ( 6), a light guide plate 7, an auxiliary component unit 8, a main frame 9, and a cover member 10. These components will be described in turn.

The lighting device 2 is composed of a box-shaped cover case formed of a metal material such as aluminum, a circuit board accommodated to be covered by the cover case, and a circuit component mounted on the board, with the adapter A interposed therebetween. It is connected to a commercial AC power supply, and receives this AC power to generate a DC output. Therefore, the lighting device 2 is electrically connected to the light source unit 6 described later, and the direct current output is supplied to the light emitting element 61 so as to control the light emitting element 61 to be lit. This lighting device 2 is located on the back side of the support chassis 3 and is attached (see FIG. 3).

The support chassis 3 is formed in a substantially square shape with a metal material such as aluminum, and has a square dish-shaped recess 31, and each side of the recess 31 has a step shape on the outside thereof. The attachment piece 32 which was bent and continued in succession is formed. Moreover, the front side of the recessed part 31 is comprised from the support surface which supports the light guide plate 7, and the rectangular opening 33 is formed in the substantially center part.

The center chassis 4 is formed in a substantially rectangular parallelepiped box shape made of a metal material such as a cold rolled steel sheet, and opens one end side (shown in the lower side), and is connected to the open side in the horizontal direction toward the outside. The contact part 41 of the blade | wing shape which came out is formed. In addition, the circular opening 42 is formed in the other end side (illustration upper side). Therefore, the center chassis 4 has comprised the rectangular parallelepiped shape with low height as a whole. The contact part 41 is a part which contacts the back surface side of the light guide plate 7 via the support chassis 3, and the opening 42 is a part into which the adapter A is inserted. And the contact part 41 of the center chassis 4 is arrange | positioned so that it may be superimposed on the periphery of the opening 33 in the support chassis 3 from above, as shown in FIG. It is fixedly attached by. On the other hand, the contact portion 41 of the center chassis 4 has a function of reinforcing the light guide plate 7.

As shown in addition to the reference of FIG. 5, the adapter guide 5 as the attachment portion is formed in a rectangular parallelepiped shape as a center chassis 4 as a whole, and the adapter A is inserted into the center portion. An engagement mechanism 51 for engaging is provided, and a blade base portion 52 facing outward is formed on the lower end side. This adapter guide 5 is arrange | positioned so that the outer peripheral surface may contact the inner peripheral surface of the center chassis 4, and is attached. In addition, the adapter guide 5 is provided with the detachment mechanism by which the cover member 10 is detachably attached.

As shown in Figs. 2, 4, 6, and 7, the light source unit 6 includes a substrate 62 on which the light emitting element 61 is mounted, and an attachment plate as an attachment member to which the substrate 62 is attached. It consists of 63.

The board | substrate 62 consists of a flat plate of the glass epoxy resin which is horizontally long rectangular shape and an insulating material, and the wiring pattern formed with the copper foil is given to the surface side. Moreover, a resist layer is performed suitably. On the other hand, when the material of the board | substrate 62 is made into an insulating material, a ceramic material or a synthetic resin material can be applied. Moreover, when it is made from metal, you may apply the metal base board in which the insulating layer was laminated | stacked on one surface of the base board which is excellent in heat conductivity, such as aluminum, and excellent in heat dissipation.

As representatively shown in FIG. 7, the light emitting element 61 is LED and is a surface mount type LED package. These LED packages are arranged along the longitudinal direction of the board | substrate 62, and are arrange | positioned at equal intervals in many substantially linear form near one end side (shown in the lower side vicinity).

Further, connection connectors 64 for supplying electric power to the light emitting element 61 are disposed at both ends in the longitudinal direction of the substrate 62. The connecting connector 64 is formed larger in appearance than the light emitting element 61. In addition, a lead wire (not shown) is connected to the connecting connector 64 so that electric power is supplied to the light emitting element 61 via the lighting device 2.

This connection connector 64 is arrange | positioned so that it may depart | deviate by the dimension d shown in FIG. 7 from the column of the light emitting element 61 arrange | positioned in substantially linear form. That is, the rows of the light emitting elements 61 are disposed out of position in the direction orthogonal to the longitudinal direction.

On the other hand, the capacitor 65 is mounted above the light emitting element 61 so as to be paired with the light emitting element 61. This capacitor 65 has a function for preventing erroneous lighting of the light emitting element 61.

An LED package is comprised with LED chip arrange | positioned generally in the main body formed from ceramics, and light transmitting resin for molds, such as an epoxy resin and a silicone resin which seal this LED chip.

The LED chip is a blue LED chip that emits blue light. In the translucent resin, a phosphor is mixed, and a yellow phosphor that emits yellow light having a complementary color relationship with blue light is used in order to emit white light.

In addition, LED may be made to mount an LED chip directly to the board | substrate 62, and may mount a shell type LED, and a mounting method and a form are not specifically limited.

The attachment plate 63 is made of a material having good thermal conductivity, such as aluminum or a galvanized steel sheet, and is formed horizontally long and has a substantially C-shaped side. The board | substrate 62 is attached to the inner side wall of this attachment plate 63 so that the back surface side may be in close_contact | adherence, etc. by screwing. Therefore, the light source part 6 has the board | substrate 62 attached to the attachment plate 63, and is unitized.

In the present embodiment, as shown mainly in FIG. 2, two unitized light source parts 6 are used, and are arranged to correspond to two opposite sides of the light guide plate 7. In addition, this unitized light source part 6 may be arrange | positioned so that it may correspond to each side of the light guide plate 7, and can be selected suitably according to a design.

The light guide plate 7 is formed in the shape of a rectangular flat plate using a material having a high transmittance such as an acrylic resin, and a dot pattern made up of a plurality of white reflective dots which diffuses light on the entire surface on the back side by printing. At the same time, a reflective sheet is provided. Moreover, the diffusion sheet is provided in the whole front surface side. In addition, a rectangular opening 71 is formed in the substantially central portion of the light guide plate 7 so as to correspond to the outer shape of the adapter guide 5 and to correspond to the adapter A. In addition, each side of the rectangular shape, ie, the side cross-section, which is the outer circumferential portion of the light guide plate 7 functions as a light incidence end face 72 in which light emitted from the light emitting element 61 enters and travels in the light guide plate 7. It is supposed to.

The auxiliary component unit 8 is configured to include a unit substrate and a plurality of electrical auxiliary components mounted on the substrate in a horizontally long box-shaped case. The electrical auxiliary components in this embodiment are an infrared remote control signal receiver, an illuminance sensor, a night light as an auxiliary light source, a switch, a monitor lamp, and the like.

This auxiliary component unit 8 is disposed at an outer circumferential edge of the lighting fixture, that is, the main body of the appliance 1, specifically, at the outer circumferential edge of the body frame 9. Therefore, the light guide plate 7 is arranged outside the light emitting region. The auxiliary component unit 8 configured as described above is provided with a plurality of electrical auxiliary components concentrated and attached to the main frame 9.

The main frame 9 is made of synthetic resin such as ABS resin or polycarbonate, is formed in a frame shape larger than the size of the light guide plate 7 as a substantially square shape, and has a side wall 91 and the side wall 91. The bottom wall 92 which has the inclined shape part which inclines downward from the lower end part to inward, and inclines upward toward inward is provided. In addition, a plurality of bosses 93 are provided on the bottom wall 92, and the attachment pieces 32 of the support chassis 3 are screwed to the bosses 93.

The cover member 10 is made of a translucent synthetic resin material such as acrylic resin or polycarbonate so as to have the front side convex in a substantially square shape. Moreover, many unevenness | corrugation which fulfills a diffusive function is formed in the surface of the front side. The cover member 10 is attached to the adapter guide 5 so as to cover the engagement opening 51 so as to be openable and openly opposite to the engagement opening 51, and to be detachable. It is.

As shown in Fig. 2 and Fig. 10, the adapter A is electrically and mechanically connected to the hooked sealing body Cb provided on the ceiling surface C by a hooked blade provided on the upper surface side. On both sides of the circumferential wall, a pair of engaging portions A1 are provided so as to protrude to the outside circumferential side at all times by the built-in spring. The stopping portion A1 is immersed by operating a lever provided on the lower surface side. Moreover, in this adapter A, the power cord which is not shown in figure which connects to the said lighting device 2 is derived, and is connected so that the lighting device 2 and a connector may be interposed.

The infrared remote control transmitter R transmits, for example, a specific coded infrared remote control control signal having a pulse shape having a frequency of 38 kHz, for example, an all-light button and a dimming light button. There is a night light button and a light off button. By operating this remote control transmitter R toward the auxiliary component unit 8, i.e., the infrared remote control signal receiving unit, the light emitting state of the light emitting element 61 in the light source unit 6, i.e., all light ON, dimming ON, OFF Control can be performed.

In the luminaire configured as described above, as shown in FIG. 6, the light emitting element 61 mounted on the substrate 62 is easily disposed to face the light incident end surface 72 of the light guide plate 7, and is suitable. It is possible to secure the positional relationship.

That is, since the connecting connector 64 is disposed out of position in the direction orthogonal to the longitudinal direction and the light emitting element 61 which is arranged in a substantially straight line shape, the light emitting element 61 is disposed on the light of the light guide plate 7. In opposing arrangement | positioning to the incident end surface 72, it becomes easy to interfere with the connection connector 64, and it becomes easy to arrange | position opposing appropriately. In addition, since the connecting connector 64 is disposed at the end portion in the longitudinal direction of the substrate 62, it is avoided that the lead wire or the like derived from the connecting connector 64 is wired over the mounting area of the light emitting element 61. .

Moreover, since the connection space 64 is arrange | positioned and arrange | positioned inside the substantially C shape of the attachment plate 63, the wiring process can be made easy. In this case, the attachment plate 63 has a function of combining the attachment and dissipation of the substrate 62 and securing the placement space, whereby the configuration can be simplified.

Next, the attachment state to the ceiling surface C of the luminaire comprised as mentioned above is demonstrated with reference to FIG. In addition, in the figure, illustration of the power cord derived from the adapter A is abbreviate | omitted.

As shown in FIG. 8, the hanging frame body Cb is provided in the ceiling surface C. As shown in FIG. In addition, the adapter A is electrically and mechanically connected to this clamping sealing body Cb. Opening or detaching the cover member 10 from this state, the engagement opening 51 is opened and the engagement opening of the adapter guide 5 in the mechanism main body 1 as shown by the arrow shown in FIG. While fitting 51 to the adapter A, hand the instrument body 1 from below until the locking portion A1 of the adapter A is securely engaged with the engagement port 51 of the adapter guide 5. The attachment operation 51 is covered with the cover member 10 so as to be closed.

Thereby, in the attachment state of the mechanism main body 1, the adapter A will penetrate the opening 42 of the center chassis 4, and the engagement part A1 of the adapter A will be made into the adapter guide 5 Is engaged with the engaging opening 51 of the c) to maintain the attachment state.

In addition, when removing the mechanism main body 1, the cover member 10 is opened or removed, and the engagement part A1 of the adapter A is engaged by operating the lever provided in the adapter A. FIG. I can remove it by unpacking it.

In the attached state of the luminaire, when electric power is supplied to the lighting device 2, the light emitting element 61 is energized through the substrate 62, and each light emitting element 61 is turned on. The light emitted from the light emitting element 61 enters the light incident end surface 72 of the light guide plate 7, and the incident light is totally reflected in the light guide plate 7 to spread throughout the light guide plate 7, and at the back of the light guide plate 7. Light diffused and reflected by a dot pattern composed of reflective dots formed on the side, and further diffused and homogenized by the diffusion sheet on the front side is emitted from the front side. In addition, part of the light leaking out of the light guide plate 7 is reflected by the reflection sheet, radiated to the front side, and reused.

Moreover, since the cover member 10 is light-transmitting, it can transmit the light which leaked out from the light guide plate 7, and can suppress a dark feeling.

In addition, heat generated from each light emitting element 61 is conducted from the back surface side of the substrate 62 to the attachment plate 63, to the support chassis 3, and effectively radiates heat in a large area of the support chassis 3. do.

As mentioned above, according to this embodiment, it becomes easy to arrange | position opposing suitably in the positional relationship of the light-incidence end surface 72 of the light emitting element 61 and the light guide plate 7. In addition, it is avoided that the lead wire or the like derived from the connecting connector 64 is wired over the mounting area of the light emitting element 61. In addition, since the arrangement | positioning space S is secured and arrange | positioned by the attachment plate 63, the connection connector 64 becomes easy wiring process.

In addition, this invention is not limited to the structure of the said embodiment, A various deformation | transformation is possible in the range which does not deviate from the summary of invention. For example, the shape and form of a light guide plate are not limited to the said embodiment. As the light emitting element, a solid light emitting element such as an LED or an organic EL can be applied. In addition, the number of light emitting elements is not specifically limited.

1: Mechanism main body 2: Lighting device
3: support chassis 4: center chassis
5: Attachment part (adapter guide) 6: Light source part
7: light guide plate 8: auxiliary component unit
9: body frame 10: cover member
51: fastener 61: light emitting element
62: substrate 63: attachment member (attachment plate)
64 connection connector 71 opening of light guide plate
72: light incident cross section A: adapter
C: Instrument mounting surface (ceiling surface) Cb: Wiring mechanism (clamping sealing body)
S: Placement space

Claims (2)

An instrument body attached to a wiring instrument disposed on the instrument attachment surface;
A lighting device disposed and installed on a rear surface side of the instrument attachment surface of the instrument body;
A substrate having a plurality of light emitting elements mounted in a straight line along the longitudinal direction, and a connecting connector disposed out of position in the direction of the back side of the mechanism main body as an end portion in the longitudinal direction of the light emitting element;
And a light guide plate having a light incidence cross section at an outer circumferential portion, the light exit plate of the light emitting element mounted on the substrate entering the light incidence cross section, and arranged so that the irradiated surface is the front side of the mechanism main body. Lighting equipment characterized in that. The illuminating device according to claim 1, wherein the substrate is attached to an attachment member, and the connection connector has an arrangement space secured by the attachment member.

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