JP2019149311A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting fixture in which a cover member can be easily attached. A lighting fixture includes a housing, a substrate, and a cover member. The housing has a receiving portion on one end side. A plurality of light emitting elements are mounted on the substrate. The cover member has a hooking portion that is hooked on the receiving portion and a fixing portion that is detachably fixed via the fixing member, and is arranged so as to face the housing with the substrate interposed therebetween. [Selection diagram] FIG. 4

Description

  Embodiments described herein relate generally to a lighting fixture.

  There is known a lighting fixture in which a light source is disposed on a lower surface of a housing and a globe is disposed so as to cover the light source. Such a lighting fixture is attached to a pole, a power pole, or the like by attaching a mounting portion provided on one end side of the housing, and is used as a security light, a street light, or the like.

  Depending on the installation environment of the lighting equipment, glare for pedestrians and the like may occur. In such a case, for example, measures are taken to cover the outside of the globe with a cover member to reduce the occurrence of glare.

JP 2017-10773 A

  The problem to be solved by the present invention is to provide a lighting fixture in which a cover member can be easily mounted.

  The lighting fixture of the embodiment includes a housing, a substrate, and a cover member. The housing has a receiving portion on one end side. A plurality of light emitting elements are mounted on the substrate. The cover member has a hook portion hooked to the receiving portion and a fixing portion that is detachably fixed via a fixing member, and is disposed so as to face the housing with the substrate interposed therebetween.

  ADVANTAGE OF THE INVENTION According to this invention, the lighting fixture with easy mounting | wearing of a cover member can be provided.

It is a side view which shows the example of an external appearance of the lighting fixture which concerns on embodiment. It is a disassembled perspective view which shows the lighting fixture which concerns on embodiment. It is a sectional side view which shows the lighting fixture which concerns on embodiment. It is a perspective view which shows the example of mounting | wearing of a cover member.

  A lighting fixture 1 according to an embodiment described below includes a housing 2, a substrate 21, and a cover member 60. The housing 2 has a receiving portion 71 on one end side. A plurality of light emitting elements 22 are mounted on the substrate 21. The cover member 60 includes a hook portion 64 that is hooked on the receiving portion 71 and a fixing portion 65 that is detachably fixed via a fixing member, and is disposed so as to face the housing 2 with the substrate 21 interposed therebetween. .

  Moreover, the lighting fixture 1 which concerns on embodiment described below has the attaching part 6 in the one end side of the housing | casing 2, and the fixing | fixed part 65 is fixed near the other end of the housing | casing 2 rather than the receiving part 71. FIG. .

  Embodiments according to the present invention will be described below with reference to the drawings. In addition, the embodiment shown below does not limit the technique which this invention discloses. In the embodiment, the same portions are denoted by the same reference numerals, and redundant description is omitted.

  Drawing 1 is a side view showing an example of appearance of a lighting fixture concerning an embodiment. FIG. 2 is a side sectional view showing the lighting apparatus according to the embodiment. FIG. 3 is an exploded perspective view showing the lighting apparatus according to the embodiment. As illustrated in FIGS. 1 to 3, the lighting fixture 1 includes a housing 2, a light source 20, an optical sensor 25, a lens member 30, a packing 40, a globe 50, and a cover member 60. The lighting fixture 1 is a lighting fixture in which the light source 20 is turned on and off based on surrounding light and darkness detected by the optical sensor 25. The luminaire 1 is mainly used outdoors, for example, as a security light or a street light.

  The housing 2 includes a housing part 3, inner walls 4 and 5, an attachment part 6, a lighting hole 7, a wiring hole 8, a vent hole 9, an annular groove 10, an insertion part 70, a receiving part 71, and a mounting part 72. The housing | casing 2 is comprised, for example with metals, such as steel or an aluminum alloy. The housing 2 is formed in a shape that is long in the length direction from one end side having the attachment portion 6 to the other end side having the mounting portion 72.

  The accommodating portion 3 is provided so as to extend in the length direction of the housing 2, and is opened so as to face the cover member 60. Between the housing 2 and the cover member 60, a substrate 21 to be described later is disposed so as to cover the housing portion 3.

  The inner wall 4 is a plate-like member that extends in the width direction orthogonal to the length direction of the housing 2, and is integrally formed inside the housing portion 3. The inner wall 4 is disposed in an intermediate region in the length direction of the accommodating portion 3. The inner wall 5 is a plurality of plate-like members protruding in the length direction from the other end side in the length direction of the housing 2 toward the inner wall 4 side. The inner walls 4 and 5 are disposed so as to protrude from the bottom surface 2 b of the housing 2 toward the cover member 60 and to contact the substrate 21. In addition, the inner walls 4 and 5 are formed in the area | region where the light emitting element 22 of the board | substrate 21 mentioned later is mounted. Further, the inner wall 5 in the length direction is positioned on the back surface of the substrate 21 on which the light emitting element 22 is mounted, so that the heat of the light emitting element 22 during lighting can be efficiently conducted. Of the housing part 3, the part on the other end side of the housing 2 across the inner wall 4 may be referred to as a light source side housing part 3 a. In the present embodiment, the light source side accommodating portion 3a has two inner walls 5 formed at a predetermined interval, but it is sufficient that one or more inner walls 5 are provided.

  The attachment portion 6 is formed on one end side in the length direction of the housing 2. The attachment portion 6 has attachment portion pieces 6a and 6b arranged in the width direction of the housing 2, and is attached to a pole, a power pole, or the like installed on the side of the road using an attachment member such as a wire or a clamp.

  The daylighting hole 7, the wiring hole 8, and the air hole 9 are through-holes provided so as to communicate the outside of the housing 2 with the housing portion 3. In the present embodiment, the daylighting hole 7 is provided closer to one end side in the middle portion in the length direction, and the wiring hole 8 and the vent hole 9 are respectively formed on one end side having the attachment portion 6.

  The daylighting hole 7 takes light from the outside of the luminaire 1 into the housing 3. The wiring hole 8 draws a wiring for supplying power to the lighting device 27 into the housing 3. A bushing 11 made of, for example, resin or rubber is fitted into the peripheral edge of the wiring hole 8. The bushing 11 is provided with an insertion hole 11a for inserting a wiring (not shown). The vent hole 9 is closed by an internal pressure adjusting filter 9a that allows gas to flow in accordance with the internal pressure of the lighting fixture 1.

  The insertion portion 70 and the receiving portion 71 are provided on one end side of the housing 2 having the attachment portion 6. The insertion portion 70 is an opening disposed between the housing portion 3 and the receiving portion 71 of the housing 2, and the receiving portion 71 is bridged between the attachment portion pieces 6 a and 6 b arranged in the width direction of the housing 2. Arranged to define the end of the insertion portion 70.

  The mounting portion 72 is a through hole provided on the other end side of the housing 2. The insertion portion 70, the receiving portion 71, and the mounting portion 72 are used for mounting the cover member 60. A mounting example of the cover member 60 using the insertion portion 70, the receiving portion 71, and the mounting portion 72 of the housing 2 will be described later together with the description of the cover member 60.

  The annular groove 10 is a groove for accommodating the packing 40, and ensures waterproofness in the lighting fixture 1.

  In the housing portion 3 of the housing 2, a sensor packing 12, a sensor cover 13, a light shielding cylinder 14, and an optical sensor 25 are housed.

  The optical sensor 25 is an illuminance sensor that detects light and dark surrounding the lighting fixture 1 and turns on and off the light source 20. The optical sensor 25 is mounted on the substrate 21 and connected to the lighting device 27. The lighting device 27 controls the light source 20 to be turned on when the illuminance detected by the optical sensor 25 is equal to or lower than a predetermined value, and to turn off the light source 20 when the detected illuminance exceeds a predetermined value.

  The sensor packing 12 is an annular seal member for filling a gap between the daylighting hole 7 and the sensor cover 13. The sensor cover 13 is disposed in the daylighting hole 7, takes in the light incident from the daylighting hole 7 into the housing portion 3, and prevents foreign matter such as rainwater and dust from entering the housing portion 3. It is a bottom cylindrical translucent member.

  The light shielding cylinder 14 is a cylindrical member made of an opaque material. The light shielding cylinder 14 is inserted and disposed on the one end 13 a side of the sensor cover 13 so as to cover the outer periphery of the sensor cover 13 on the one end 13 a side. The light shielding cylinder 14 and the sensor cover 13 may be in contact with each other or may be slightly separated. Thereby, the amount of light collected from the sensor cover 13 can be transmitted to the optical sensor 25 on the substrate 21 as it is.

  Further, the light shielding cylinder 14 includes a return portion 14b that protrudes inward from the end portion 14a side facing the first main surface 21a of the substrate 21. The light shielding cylinder 14 is disposed so that the return portion 14 b contacts the side surface of the spacer 26 while covering the periphery of the optical sensor 25 so as to accommodate the optical sensor 25.

  Thus, by arranging the sensor cover 13, the light shielding cylinder 14, and the optical sensor 25, it is possible to reliably guide the light incident from the daylighting hole 7 to the optical sensor 25. Further, light other than the light incident from the daylighting hole 7, that is, light that wraps around from the outer peripheral side of the light shielding cylinder 14 and between the light shielding cylinder 14 and the substrate 21 can be more reliably blocked. For this reason, the light and dark detection precision of the surroundings of the lighting fixture 1 by the optical sensor 25 improves. Note that the optical sensor 25 may be mounted on the substrate 21, and the substrate 21 may not have the spacer 26.

  Next, the light source 20 will be described. The light source 20 includes a substrate 21 and a plurality of light emitting elements 22 and a lighting device 27 mounted on the second main surface 21 b of the substrate 21. The substrate 21 is a flat plate having insulating properties such as glass epoxy resin, for example, and a locking hole 24 for locking the lens member 30 is provided at an edge in the width direction of the substrate 21 facing the lens member 30. .

  Further, the first main surface 21a and the second main surface 21b of the substrate 21 are respectively provided with wiring patterns made of a conductive material such as copper foil, and a resist layer is appropriately applied. . The material of the substrate 21 may be a ceramic material or a synthetic resin material when an insulating material is used. The material of the substrate 21 may be made of metal. In such a case, it is preferable to use a material having good heat conductivity and excellent heat dissipation, such as aluminum. The surface of the substrate 21 may be painted white with high light reflectance.

  The light emitting elements 22 are respectively connected to the lighting device 27 by a wiring pattern on the substrate 21, and a direct current output is supplied from the lighting device 27, and lighting control is performed by the lighting device 27. A plurality of light emitting elements 22 are arranged along the length direction and the width direction of the substrate 21. The light emitting element 22 includes, for example, an LED chip disposed in a main body formed of ceramics, and a translucent resin for molding such as an epoxy resin or a silicone resin that seals the LED chip.

  The LED chip is, for example, a blue LED chip that emits blue light. In the translucent resin, a phosphor is mixed, and in order to be able to emit white light, a yellow phosphor that emits yellow light that is complementary to blue light is used. Yes. The LED chip may emit red light or green light, for example.

  Moreover, LED may be made to mount an LED chip directly on the board | substrate 21, and you may make it mount a bullet-type LED, and a mounting system and a format are not specifically limited.

  The lighting device 27 is connected to a commercial AC power supply, is configured to receive the commercial AC power supply, generate a DC output, and control lighting and extinction of the light emitting element 22. The lighting device 27 has a plurality of circuit components 28 mounted on the substrate 21. The circuit component 28 has a first main surface 21a different from the second main surface 21b on which the light emitting element 22 is mounted, and is relatively mounted on one end side in the length direction of the housing 2 having the attachment portion 6. It is an electronic component with a large volume. By arranging the housing part 3 of the housing 2 so as to be covered with the single substrate 21 in this way, a relatively large circuit component 28 is housed in the housing part 3 that is a space in the housing 2. Become. As described above, the light emitting element 22 is provided on the second main surface 21b on one end side of the substrate 21 and the circuit component 28 is provided on the first main surface 21a on the other end side. 22 and the circuit component 28 can be efficiently mounted, and the number of components can be reduced.

  Next, the lens member 30 will be described. The lens member 30 integrally includes a plurality of concave portions 32 and a bulging portion 35. The recesses 32 are arranged so as to face the light emitting elements 22 mounted on the second main surface 21b of the substrate 21, respectively. The recesses 32 are respectively provided on the first surface 31 side so as to face the corresponding light emitting elements 22 and accommodate the light emitting elements 22. The recess 32 has a substantially elliptical shape in plan view, and is provided so that the length direction is along the length direction of the substrate 21.

  The bulging portion 35 is provided on the second surface 34 side opposite to the first surface 31 of the lens member 30, and the plurality of bulging portions 35 cooperate to provide the photo-alignment property of the lens member 30. Stipulate. The lens member 30 controls the light distribution in the width direction of the road and the length direction of the road, for example. In particular, in the lighting device 1 that is installed on the side of a road or on a sidewalk to irradiate the road, it is required to irradiate a relatively large amount of irradiation light in the length direction of the road. Therefore, the lens member 30 has a pair of bulging portions 35 that are longer in the width direction than the length direction of the housing 2, and the bulging portions 35 serve as emission surfaces in the width direction, so that the light can be transmitted along the length of the road. Irradiating in the direction. Thereby, the light emitted from the light emitting element 22 can be efficiently incident on the incident surface of the concave portion 32 in the length direction of the substrate 21 and can be irradiated from the bulging portion 35 which is the emission surface.

  The lens member 30 has a flat portion 36 that connects the plurality of bulging portions 35. The flat portion 36 is disposed such that the first surface 31 side contacts the second main surface 21b that is the mounting surface of the light emitting element 22 of the substrate 21. Further, a pair of locking portions 33 are provided at both ends in the direction along the width direction of the substrate 21 from the flat portion 36. The locking portion 33 protrudes toward the substrate 21 and is provided so as to be inserted into the locking hole 24 provided in the substrate 21. The pair of locking portions 33 have locking claws 33 a that extend along the length direction of the substrate 21.

  The lens member 30 is locked by sliding the lens member 30 in the length direction of the substrate 21. Specifically, the locking portion 33 is inserted into the locking hole 24, and the flat portion 36 of the lens member 30 and the second main surface 21b of the substrate 21 are brought into contact with or close to each other, and then the lens member 30 is moved to the mounting portion 6 side. The lens member 30 is locked to the substrate 21 by being slid in such a direction as to approach the substrate 21. By sliding and locking the lens member 30 in this manner, the distance between the light emitting element 22 and the concave portion 32 of the lens member 30 can be made close. Therefore, the light distribution can be controlled efficiently. Further, for example, the number of parts can be reduced as compared with the case where the lens member 30 and the substrate 21 are fixed by screwing. In addition, in order to fix the lens member 30 and the board | substrate 21 more reliably, you may use together screwing.

  The concave portion 32 extends in the sliding direction so as to face the light emitting element 22 before and after the lens member 30 slides. For this reason, the interference between the light emitting element 22 and the recess 32 can be avoided before and after the lens member 30 and the substrate 21 are locked.

  In addition, although the recessed part 32 was provided so that the length direction of the recessed part 32 may be along the length direction of the board | substrate 21, it is not restricted to this, For example, when it wants to irradiate much light in the width direction of a road For example, when the pair of bulging portions 35 are formed so as to be aligned in the length direction, the length direction may be provided along the width direction of the substrate 21. Further, the lens member 30 is locked to the substrate 21 by changing the sliding direction of the lens member 30 to be locked to the substrate 21 and sliding the lens member 30 in the direction opposite to the illustrated direction. You may change the position of the latching claw 33a.

  Further, the arrangement and shape of the locking portions 33 and the locking holes 24 may be changed so that the sliding direction of the lens member 30 is along the width direction of the substrate 21. Further, the substrate 21 may have a locking portion 33 and the lens member 30 may have a locking hole 24.

  The packing 40 is, for example, silicone rubber, and is accommodated in the annular groove 10 to ensure waterproofness between the housing 2 and the globe 50.

  The globe 50 has a bottom surface 51, a peripheral wall 52, an annular convex portion 53, and a partition portion 54. The globe 50 is made of a translucent material such as acrylic or polycarbonate. The globe 50 has a function of diffusing light emitted from the lens member 30 by being subjected to frost processing. It should be noted that a diffusing material may be appropriately mixed in the globe 50 to provide light diffusibility.

  The bottom surface 51 of the globe 50 is formed so as to have a relatively high inner space from the surface of the substrate 21 of the light source 20, so that light whose light distribution is controlled by the lens member 30 can be efficiently irradiated to the irradiation side.

  The globe 50 is disposed so as to press the packing 40 with the annular convex portion 53, and ensures waterproofing between the housing 2 and the globe 50. Moreover, the part where the adjacent bottom face 51 and the surrounding wall 52 cross | intersect is each chamfered by the curvature radius of a predetermined magnitude | size, or is rounded. For this reason, compared with the case where the adjacent bottom face 51 and the surrounding wall 52 have a ridgeline in the part which cross | intersects, the light by which the light distribution control was carried out by the lens member 30 can be radiate | emitted efficiently in the width direction of a road.

  The cover member 60 includes a bottom surface 61, a peripheral wall 62, an inner surface 63, a hook portion 64, and a fixing portion 65. The cover member 60 is made of a light transmissive material such as acrylic or polycarbonate. The cover member 60 is frosted so as to have a desired light diffusibility. Further, a diffusion material or a colorant may be mixed in the cover member 60 as appropriate.

  The cover member 60 further reduces the generation of glare by further diffusing the light emitted from the globe 50. The cover member 60 emits light colored according to the colorant. The cover member 60 is an adjustment member for adjusting the emitted light in response to a request such as taking countermeasures because the light emitted from the globe 50 is dazzling or emitting desired colored light. The cover member 60 can be attached and detached also in the lighting fixture 1 attached to a predetermined installation location.

  The bottom surface 61 and the peripheral wall 62 of the cover member 60 are formed to face the bottom surface 51 and the peripheral wall 52 of the globe 50. Further, the inner surface 63 of the cover member 60 is formed so that the globe 50 can be accommodated in the internal space. The inner surface 63 may be away from or in contact with the globe 50.

  The hook portion 64 is formed so as to project outward from one end in the length direction of the peripheral wall 62 of the cover member 60. The hook portion 64 has a shape that can be inserted into the insertion portion 70 of the housing 2. The fixing portion 65 is a substantially arc-shaped notch provided on the other end side in the length direction of the peripheral wall 62 of the cover member 60.

  The cover member 60 is attached to the housing 2 using the hook portion 64 and the fixing portion 65. Here, an example of attachment of the cover member 60 to the housing 2 will be described with reference to FIGS. FIG. 4 is a perspective view illustrating a mounting example of the cover member.

  First, the end portion of the hook portion 64 is inserted into the insertion portion 70 of the housing 2. Next, the hook portion 64 inserted into the insertion portion 70 is hooked on the receiving portion 71 so that the hook portion 64 contacts or approaches, and the other end side of the cover member 60 is brought close to the globe 50 as it is in the direction indicated by the arrow 100 in FIG. Move. Then, the position of the cover member 60 is finely adjusted so that the fixing portion 65 faces the mounting portion 72 of the housing 2, and the housing 2 and the cover member 60 are fixed using a fixing member (not shown) such as a screw. As a result, the hook portion 64 of the cover member 60 is held by the receiving portion 71 of the housing 2, the fixing portion 65 is fixed to the mounting portion 72 of the housing 2, and the cover member 60 is attached to the housing 2.

  Thus, the cover member 60 can be reduced in the number of parts by being attached to the housing 2 using the hooking portion 64, and the cover member 60 can be easily attached. Moreover, since the receiving part 71 holding the hook part 64 is provided on the one end side of the same housing 2 as the attaching part 6, even if the lighting fixture 1 remains attached to a pole, a power pole, etc. In addition, attachment / detachment work such as attachment and replacement work of the cover member 60 is facilitated, and workability is improved.

  In the above-described embodiment, the light emitting element 22 is described as being turned on and off based on the light and dark detected by the optical sensor 25. However, the present invention is not limited to this, and the light emitting element 22 is turned on and off based on the light or dark detected by the optical sensor 25. One of the light extinctions may be executed. In such a case, the lighting device 27 can execute the other of turning on and off the light emitting element 22 at a predetermined time, for example.

  In the above-described embodiment, the fixing portion 65 of the cover member 60 has been described as being fixed to the mounting portion 72 provided on the other end side of the housing 2, but the fixing portion 65 is the receiving portion 71 of the housing 2. The mounting portion 72 may not be formed at the illustrated position as long as it is fixed closer to the other end of the housing 2.

  In the above-described embodiment, the cover member 60 has been described as being attached to the housing 2, but is not limited thereto, and may be attached to the globe 50. One of the cover members 60 may be attached to the housing 2 and the other to the globe 50.

  Moreover, although the globe 50 was described as an essential configuration in the above-described embodiment, the lighting fixture 1 may not have the globe 50. In such a case, the cover member 60 has a function that the globe 50 has.

  The lighting fixture 1 according to the embodiment includes a housing 2, a substrate 21, and a cover member 60. The housing 2 has a receiving portion 71 on one end side. A plurality of light emitting elements 22 are mounted on the substrate 21. The cover member 60 includes a hook portion 64 that is hooked on the receiving portion 71 and a fixing portion 65 that is detachably fixed via a fixing member, and is disposed so as to face the housing 2 with the substrate 21 interposed therebetween. . Thereby, mounting | wearing of the cover member 60 becomes easy.

  Moreover, the lighting fixture 1 which concerns on embodiment has the attaching part 6 in the one end side of the housing | casing 2, and the fixing | fixed part 65 is fixed near the other end of the housing | casing 2 rather than the receiving part 71. FIG. Thereby, even if it is the attachment or detachment operation | work of the cover member 60 in the state in which the lighting fixture 1 was installed in the high place or the outdoors, workability | operativity improves.

  Although the embodiment of the present invention has been described, this embodiment is presented as an example and is not intended to limit the scope of the invention. This embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the invention described in the claims and equivalents thereof as well as included in the scope and gist of the invention.

DESCRIPTION OF SYMBOLS 1 Lighting fixture 2 Housing | casing 3 Accommodating part 6 Mounting part 20 Light source 21 Substrate 22 Light emitting element 30 Lens member 32 Recess 50 Globe 60 Cover member 64 Hooking part 65 Fixing part 71 Receiving part 72 Mounting part

Claims (2)

A housing having a receiving portion on one end side;
A substrate on which a plurality of light emitting elements are mounted;
A cover member that has a hook portion hooked to the receiving portion and a fixing portion that is detachably fixed via a fixing member, and is disposed so as to face the casing with the substrate interposed therebetween;
The lighting fixture characterized by comprising. A mounting portion on the one end side of the housing;
The lighting fixture according to claim 1, wherein the fixing portion is fixed closer to the other end of the housing than the receiving portion.