JP2017050082A - Light source unit and lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve reduction in manufacturing cost and shortening of work time of manufacturing work.SOLUTION: A mounting member 23 includes: a frame part 230 having a window hole 231 in which a lens part 220 is inserted; and one or a plurality of hook parts 232 protruding from the frame part 230. A heat radiation member 21 has a part 213 to be hooked to which the hook part 232 is detachably hooked. The part 213 to be hooked is constituted so as to pass the hook part 232 in the thickness direction of the heat radiation member 21, and so as to move the hook part 232 in the direction crossing the thickness direction. The mounting member 23 is constituted so as to pinch and support an outer flange part 221 between the heat radiation member 21 and the frame part 230 in a state where the hook part 232 is hooked to the part 213 to be hooked. A light source unit 2 of the embodiment does not require a special structure supported by the heat radiation member 21 in a lens block 22, so that compared to the conventional example, reduction in manufacturing cost and shortening in work time of manufacturing work can be achieved.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a light source unit and a lighting fixture, and more particularly to a light source unit having a solid light emitting element and an optical member, and a lighting fixture having the light source unit.

  As an example of the prior art, an emergency light described in Patent Document 1 is illustrated. An emergency light described in Patent Document 1 (hereinafter referred to as a conventional example) includes a light source unit, a frame member that supports the light source unit, a battery, a lighting unit that turns on the light source unit using the battery as a power source, a battery, and a lighting unit. An instrument main body housed inside and to which a frame member is attached. This conventional example is embedded in a ceiling of a corridor or a passage, and is configured to illuminate an evacuation route by turning on an emergency when a power failure occurs in a power system.

  The light source unit includes a substrate, a light source (light emitting diode) mounted on the substrate, a glass lens that controls light distribution of light emitted from the light source, and a blocking member. The glass lens has an opening for accommodating the substrate. The closing member closes the opening of the glass lens in which the substrate is accommodated.

  The frame member is provided with a circular opening at the center. The light source unit is housed in the opening of the frame member, and is fixed to the frame member by fitting the concave and convex portions formed on the outer periphery of the glass lens and the inner periphery of the opening of the frame member.

JP 2012-84324 A

  By the way, the light source part (light source unit) in the conventional example has a structure in which a substrate (light source module) on which a light emitting diode is mounted is accommodated in an opening part of a glass lens closed by a closing member. The closing member is fixed to the glass lens by a fixing means that cannot be removed from the opening of the glass lens. That is, in the conventional example described in Patent Document 1, it is necessary to perform an operation for forming a concave portion or a convex portion for fitting the opening and the concave and convex portions on the glass lens.

  This invention is made | formed in view of the said subject, and aims at reduction of manufacturing cost and shortening of the working time of manufacturing operation.

  The light source unit of the present invention includes a light source module, a heat radiating member that is thermally coupled to the light source module, a light distribution control member that controls light distribution of light emitted from the light source module, and the light distribution control member. An attachment member that attaches to the heat dissipation member, and the light distribution control member has a lens portion that faces the light source module, and a plate-like outer flange provided around the lens portion, and the attachment The member includes a frame portion having a window hole through which the lens portion is inserted, and one or a plurality of hook portions protruding from the frame portion, and the heat radiating member is a cover on which the hook portion is detachably hooked. The hooked portion is configured to allow the hooked portion to pass in the thickness direction of the heat radiating member and to move the hooking portion in a direction intersecting the thickness direction; , The hooking portion Characterized in that it is configured to support across the outer flange portion between the heat dissipating member in a state hooked to the hook portion and the frame portion.

  The lighting fixture of this invention is equipped with the light source unit and the fixture main body which accommodates the said light source unit, It is characterized by the above-mentioned.

  The light source unit and the lighting fixture of the present invention have an effect that the manufacturing cost can be reduced and the working time of the manufacturing work can be shortened.

It is a perspective view of the light source unit which concerns on embodiment. It is a disassembled perspective view of the light source unit which concerns on embodiment. 3A is a front view, FIG. 3B is a left side view, FIG. 3C is a right side view, FIG. 3D is a plan view, and FIG. 3E is a rear view. It is a longitudinal cross-sectional view of the light source unit which concerns on embodiment. It is a disassembled perspective view of the lighting fixture which concerns on embodiment. The lighting fixture which concerns on embodiment is shown, FIG. 6A is a rear view, FIG. 6B is a front view, FIG. 6C is a top view. It is the front view which showed the lighting fixture which concerns on embodiment, and was partly fractured | ruptured in the state which removed the cover. It is a circuit block diagram of the lighting device in the lighting fixture which concerns on embodiment. It is a perspective view of the lighting fixture which concerns on another embodiment. It is the front view of the state which showed the lighting fixture which concerns on another embodiment, and removed the cover.

  Hereinafter, the light source unit 2 and the lighting fixture X according to the present embodiment will be described in detail with reference to the drawings. In addition, although the lighting fixture X which concerns on this embodiment is comprised as an emergency lighting fixture with a built-in battery, it may be a lighting fixture for general lighting. The configurations described in the following embodiments are merely examples of the present invention. The present invention is not limited to the following embodiments, and various modifications can be made according to the design and the like as long as they do not depart from the technical idea of the present invention.

  First, a schematic configuration of the lighting fixture X according to the present embodiment will be described. As illustrated in FIG. 5, the lighting fixture X according to the present embodiment includes the light source unit 2 according to the present embodiment and the fixture body 1, and is embedded in a ceiling such as a passage or a hallway of a building. Furthermore, it is preferable that the lighting fixture X which concerns on this embodiment is equipped with the battery unit 3, the lighting unit 4, the cover 5, etc. FIG. However, in the following description of the lighting fixture X, the vertical and horizontal directions and the front and rear directions are defined in FIG.

  The instrument body 1 is formed in a bottomed cylindrical shape having an open bottom surface. Moreover, the instrument main body 1 has a flat surface (flat surface) on both the left and right sides, and is configured such that a peripheral surface excluding those flat surfaces is a cylindrical surface. Further, an annular flange 10 protruding outward is formed on the lower end edge of the instrument body 1 (see FIG. 7). In addition, it is preferable that the instrument main body 1 has the to-be-fixed part 12 which protrudes inward from the position of the left front in the vicinity of the lower end of the instrument main body 1 (refer FIG.5 and FIG.7). The fixed portion 12 is preferably formed in a rectangular flat plate shape, and a screw insertion hole 120 is preferably provided in the vicinity of the tip.

  One support tool 6 is attached to each of the left and right flat surfaces of the instrument body 1 (see FIGS. 6A and 6C). The pair of supports 6 are preferably formed in a long leaf spring shape. Each support 6 is configured to be fixed to a flat surface of the instrument body 1 at one end in the longitudinal direction and bendable in a direction (upward) in which the other end in the longitudinal direction approaches the bottom plate 11 of the instrument body 1. ing. That is, the instrument body 1 is supported by the ceiling material so that the ceiling material is sandwiched between the pair of support tools 6 inserted into the embedding holes and the flange 10 provided on the lower end surface of the instrument body 1. .

  The cover 5 is formed in a disk shape larger than the outer diameter of the flange 10 of the instrument body 1, and a circular window hole 50 is provided at the center (see FIGS. 5 and 6B). As will be described later, the lens portion 220 of the light source unit 2 is inserted into the window hole 50. The cover 5 is configured to close the opening on the front surface of the instrument body 1 so as to be openable. Attachment springs 7 are respectively attached to the front end and the rear end of the upper surface of the cover 5. The pair of attachment springs 7 are detachably inserted into insertion grooves 13 provided in pairs on the front side and the rear side of the inner peripheral surface of the instrument body 1 respectively. That is, the cover 5 is held by the instrument body 1 in a state in which the lower surface of the instrument body 1 is closed by the pair of attachment springs 7 being inserted through the pair of insertion grooves 13 (see FIGS. 6C and 7). .

  The battery unit 3 includes a plurality of batteries 30 and a battery case 31 that accommodates the plurality of batteries 30 (see FIG. 7). The battery 30 is preferably a secondary battery such as a cylindrical nickel-cadmium battery or a cylindrical nickel-metal hydride battery. The battery case 31 is preferably formed in a cylindrical shape whose bottom surfaces on both the upper and lower sides are horseshoe-shaped (U-shaped). It is preferable that the plurality of batteries 30 be accommodated in the battery case 31 so that the axial direction is the vertical direction and is aligned in a line along the radial direction.

  A connector portion 32 that is electrically connected to the lighting unit 4 is provided at the lower front end portion of the battery case 31 (see FIG. 5). The connector part 32 has a pair of contacts and a connector housing 320 that supports the pair of contacts in an electrically insulated state. One contact is electrically connected to the positive electrode of the battery 30 at one end of the plurality of batteries 30 electrically connected in series within the battery case 31. The other contact is electrically connected to the negative electrode of the battery 30 at the other end.

  Further, a retaining portion 33 is provided at the lower rear end portion of the battery case 31 (see FIG. 5). The retaining portion 33 includes a spring piece 330 having an upper end fixed to the battery case 31 and capable of bending in the left-right direction, and a protrusion 331 provided on the left side near the lower end of the spring piece 330. The protrusion 331 is preferably formed in a triangular prism shape having an inclined surface that is inclined downwardly away from the spring piece 330.

  The lighting unit 4 includes a lighting device 40 and a housing 41 that houses the lighting device 40. A circuit block diagram of the lighting device 40 is shown in FIG. The lighting device 40 preferably includes a DC power supply circuit 400, a charging circuit 401, a lighting circuit 402, a power failure detection circuit 403, a control circuit 404, a monitor lamp 405, a push button switch 406, a receiving unit 407, and the like.

  The DC power supply circuit 400 is configured by, for example, a self-excited switching power supply circuit such as a ringing choke converter, and an AC voltage supplied from an external power supply (for example, a commercial power system) W is obtained from an effective value of the AC voltage. Is preferably converted to a low DC voltage. The charging circuit 401 is preferably configured to operate when power is supplied from the external power supply W and to allow a constant charging current to flow from the DC power supply circuit 400 to the battery unit 3. The lighting circuit 402 is preferably configured to make the direct current supplied from the battery unit 3 constant and supply the direct current to the light source unit 2. The power failure detection circuit 403 is configured to detect a power failure of the external power supply W from the output voltage of the DC power supply circuit 400 and notify the control circuit 404 of it. The monitor lamp 405 is formed of, for example, a light emitting diode that emits green light, and is preferably caused to emit light by a charging current supplied from the charging circuit 401 to the battery unit 3. The receiving unit 407 is configured to receive a radio signal using infrared as a communication medium, demodulate a transmission frame from the received radio signal, and pass the demodulated frame to the control circuit 404. This radio signal is transmitted from a wireless transmitter operated by an operator who performs a periodic inspection operation. The periodic inspection is performed every period defined by laws and regulations, and is intended to confirm that the lighting circuit 402 is forced to operate and the light source unit 2 maintains the lighting state for a predetermined time or more. To do.

  The control circuit 404 is configured to operate the charging circuit 401 and stop the lighting circuit 402 when the power failure detection circuit 403 does not detect a power failure. The control circuit 404 is configured to stop the charging circuit 401 and operate the lighting circuit 402 when the power failure detection circuit 403 detects a power failure. Further, when one push button switch 406A is pressed or when a transmission frame is received from the receiving unit 407, the control circuit 404 stops the charging circuit 401 and operates the lighting circuit 402 to perform periodic inspection. Configured to perform an action. However, when the other pushbutton switch 406B is pushed, the control circuit 404 operates the lighting circuit 402 for several seconds, then stops the lighting circuit 402 again, and operates the charging circuit 401. Preferably, it is configured.

  The lighting device 40 includes a DC power supply circuit 400 including various electronic components mounted on a first surface of a circuit board made of a printed wiring board and a conductor formed on the second surface (the back surface of the first surface) of the circuit board. To the control circuit 404 are configured to be realized. The monitor lamp 405 and the two push button switches 406A, 406B are preferably mounted near the lower end of the first surface of the circuit board (see FIG. 7).

  The casing 41 of the lighting unit 4 is preferably formed in a cylindrical shape whose bottom surfaces on both the upper and lower sides are hexagonal. However, the two bottom surfaces of the casing 41 are longer than the other one side (second side) with one side (first side) facing each other, and two sides (third side) on both sides of the first side. Preferably, the side and the fourth side are formed in a hexagonal shape (see FIG. 7). Three openings 410A, 410B, and 410C are provided on the lower surface of the casing 41 so as to be aligned in the front-rear direction. A receiving-side connector connected to the connector portion 32 of the battery unit 3 so as to be insertable / removable in the front-rear direction is arranged behind the opening 410A at the front end. In addition, a receptacle connector 408 connected to a plug connector 26 of the light source unit 2 (described later) so as to be insertable / removable in the front-rear direction is disposed behind the central opening 410B (see FIG. 5). Further, a monitor lamp 405, two push button switches 406A and 406B, a receiving unit 407, and two operation members 42 are disposed in the back of the opening 410C at the rear end. These two operation members 42 are provided so as to be movable in the vertical direction, and are preferably configured to push the pushbuttons of the pushbutton switches 406A and 406B, respectively, when moving upward. Moreover, it is preferable that the housing | casing 41 is comprised so that the quick connection type terminal block 43 may be hold | maintained (refer FIG. 6C).

  As shown in FIGS. 5 and 7, the lighting unit 4 is accommodated in the instrument body 1 such that the second sides of the upper surface and the lower surface of the housing 41 are along the flat surface. And the lighting unit 4 is fixed to the instrument main body 1 by screwing the upper surface of the housing | casing 41 to the fixing piece 110 provided in the baseplate 11 of the instrument main body 1 (refer FIG. 6A). However, as shown in FIG. 6C, the terminal block 43 held by the housing 41 exposes the insertion port 430 to the outside of the instrument body 1 through the hole 1110 of the stepped portion 111 provided in the bottom plate 11 of the instrument body 1. It is preferable to make it. In other words, the external power supply W and the lighting device 40 are electrically connected via the terminal block 43 by inserting the conductor of the power supply line into these insertion ports 430.

  Next, the light source unit 2 according to the present embodiment will be described in detail with reference to FIGS. However, in the following description of the light source unit 2, the vertical and horizontal directions and the front and rear directions are defined in FIG.

  The light source unit 2 according to the present embodiment preferably includes an LED module (light source module) 20, a heat radiating member 21, a lens block 22, a mounting member 23, a pressing member 24, a heat conductive sheet 25, a plug connector 26, and the like. In the LED module 20, one or a plurality of LED chips (solid light emitting elements) are mounted at the center of the upper surface of a rectangular flat plate-shaped mounting substrate 200. These LED chips are preferably blue light emitting diodes that emit blue light, for example. In addition, the upper surface of the mounting substrate 200 including the LED chip is covered in a disk shape with a sealing resin 201 mixed with a fluorescent substance that converts the wavelength of blue light emitted from the LED chip. Further, a cathode electrode 202 and an anode electrode 203 are formed on the upper surfaces of a pair of corner portions at diagonal positions of the mounting substrate 200 (see FIG. 2). The LED module 20 is configured to emit white illumination light when a DC voltage is applied to the anode electrode 203 and the cathode electrode 202.

  The heat conductive sheet 25 is preferably composed of a sheet material made of silicone resin having high thermal conductivity, electrical insulation and flame retardancy. The heat conductive sheet 25 is interposed between the mounting substrate 200 of the LED module 20 and the heat radiating member 21, and is configured to conduct heat emitted from the LED chip and conducted through the mounting substrate 200 to the heat radiating member 21. The

  It is preferable that the pressing member 24 is formed in a substantially disc shape by a synthetic resin material such as polycarbonate resin (see FIG. 2). The holding member 24 has a substantially rectangular hole 240 in the center. A recess 241 is provided around the hole 240 on the upper surface of the pressing member 24. Furthermore, L-shaped pressing protrusions 242 are formed on the upper surface of the pressing member 24 at diagonal positions of the holes 240 as viewed from above and below. Further, the pressing member 24 has a rectangular tubular connector holding portion 243. This connector holding part 243 is comprised so that the plug connector 26 may be accommodated and hold | maintained inside (refer FIG. 3E).

  The plug connector 26 includes a pair of contacts and a connector housing 260 that supports the pair of contacts in an electrically insulated state. One contact is electrically connected to the cathode electrode 202 of the LED module 20 via an electric wire. The other contact is electrically connected to the anode electrode 203 of the LED module 20 via another electric wire.

  The lens block 22 is made of, for example, glass, and preferably includes a lens portion 220 having a substantially truncated cone shape and an annular outer flange portion 221 that protrudes outward from the periphery of the lens portion 220 (FIG. 2). reference). As shown in FIG. 4, the lens unit 220 is formed with an incident surface 2200 having an approximately paraboloidal shape. The lens unit 220 is configured to control light distribution of light incident on the incident surface 2200 (illumination light emitted from the LED module 20).

  The attachment member 23 is preferably formed in an approximately annular shape by a synthetic resin material such as polycarbonate resin (see FIG. 2). The attachment member 23 preferably includes a frame portion 230, a pair of hook portions 232, a fixing portion 233, and the like. The frame portion 230 includes an annular main portion 2300 and a cylindrical peripheral wall portion 2301 that protrudes downward from the outer peripheral edge of the main portion 2300 over the entire circumference. The main portion 2300 has a circular window hole 231. The pair of hook portions 232 are preferably formed integrally with the peripheral wall portion 2301 so as to protrude downward from the left front and right front lower surfaces of the peripheral wall portion 2301. The hook portion 232 includes a rectangular parallelepiped protrusion 2320 that protrudes downward from the peripheral wall portion 2301 and a rectangular parallelepiped hook piece 2321 that protrudes in parallel with the peripheral wall portion 2301 from the protrusion 2320 (see FIGS. 2 and 3D). ). That is, the hooking portion 232 is preferably formed in an L shape as a whole. The fixing part 233 is preferably formed in a substantially trapezoidal shape. It is preferable that the fixing | fixed part 233 is integrally formed with the surrounding wall part 2301 so that it may protrude back from the rear surface in the surrounding wall part 2301 of the frame part 230 (refer FIG.2 and FIG.3A). In addition, it is preferable that the fixing | fixed part 233 is provided with the circular screw insertion hole 2330 in the center.

  The heat dissipating member 21 is preferably made of a plate material made of aluminum or aluminum alloy, and preferably includes a coupling portion 210 that is thermally coupled to the LED module 20 and a fixing portion 211 that is fixed to the casing 41 of the lighting unit 4 ( FIG. 1, FIG. 2 and FIG. 3E). Furthermore, the heat radiating member 21 preferably has a connecting portion 212 that connects the coupling portion 210 and the fixing portion 211. The coupling portion 210 is preferably formed in a substantially disc shape. The fixing part 211 is preferably formed in a substantially trapezoidal shape. The connecting portion 212 is preferably formed in a rectangular shape. However, it is preferable that the fixing portion 211 is configured to have a width dimension in the left-right direction larger than both the coupling portion 210 and the connecting portion 212.

  A hooked portion 213 is provided on each of the left and right sides of the front end of the coupling portion 210. The hooked portion 213 allows the hooking portion 232 of the mounting member 23 to pass in the thickness direction (vertical direction) of the heat radiating member 21, and the hooking portion 232 is movable in the direction intersecting the thickness direction (left-right direction and front-rear direction). Preferably it is comprised. In the present embodiment, the hooked portion 213 preferably has a notch 2130 formed in the peripheral portion of the heat dissipation member 21 (the coupling portion 210 thereof). The notch 2130 is preferably formed in a substantially rectangular shape. It is preferable that the hooked portion 213 includes a notch 2130 and a portion (hooked portion 2131) located next to the notch 2130 (next to the left). However, the hooked portion 213 may have a hole that penetrates the heat dissipation member 21 in the thickness direction instead of the notch 2130. In this case, the hooked portion 213 includes a hole and a portion (hooked portion) located next to the hole.

  The fixing portion 211 is provided with two round holes 2110 and one screw hole (first screw hole 2111) (see FIGS. 2 and 3E). The two round holes 2110 are preferably provided in a line in the left-right direction. The first screw hole 2111 is preferably provided near the right end of the fixing portion 211. Moreover, it is preferable that the connection part 212 is provided with a rectangular insertion hole 2120 and a screw hole (second screw hole 2121) (see FIGS. 2 and 3E). The insertion hole 2120 is preferably provided in the approximate center of the connecting portion 212, and the second screw hole 2121 is preferably provided at the left rear position of the insertion hole 2120.

  Next, the assembly procedure of the light source unit 2 according to this embodiment will be described. However, the plug connector 26 is already electrically connected to the LED module 20 via two electric wires.

  First, the worker who performs the assembly work lays the heat conductive sheet 25 on the upper surface of the coupling portion 210 of the heat radiating member 21 and places the LED module 20 on the heat conductive sheet 25 with the LED chip mounting surface facing up. . Then, the operator passes the plug connector 26 and the two electric wires through the hole 240, and inserts the connector holding portion 243 into the insertion hole 2120 of the connecting portion 212, and from above the heat conductive sheet 25 and the LED module 20. The holding member 24 is put on. At this time, the operator aligns the four corners of the hole 240 with the four corners of the mounting substrate 200 of the LED module 20 and presses the two corners of the LED module 20 (the mounting substrate 200) from above with the pair of pressing protrusions 242 ( (See FIG. 4). Furthermore, the operator causes the connector holding portion 243 to hold the plug connector 26 by inserting the plug connector 26 into the connector holding portion 243 of the pressing member 24 from above. In addition, the operator stores the two electric wires that electrically connect the plug connector 26 and the LED module 20 in the recess 241 of the pressing member 24.

  Subsequently, the operator inserts the pair of hooking portions 232 of the mounting member 23 into the hooked portion 213 (notch 2130) of the heat radiating member 21 from above, and then turns clockwise when viewing the mounting member 23 from above. Rotate to Then, since the hooked portion 213 (the hooked portion 2131) is inserted into the gap between the hooking piece 2321 of the hooking portion 232 and the frame portion 230 (the peripheral wall portion 2301), the hooking portion 232 becomes the hooked portion. It is hooked on 213 (see FIGS. 1 and 3A). As shown in FIG. 4, since the main portion 2300 of the frame portion 230 covers the upper surface of the outer flange portion 221 of the lens block 22, the pressing member 24 and the lens block 22 are interposed between the mounting member 23 and the heat dissipation member 21. Is sandwiched and held.

  Finally, the operator screws the screw inserted from above into the screw insertion hole 2330 of the fixing portion 233 of the attachment member 23 into the second screw hole 2121 provided in the connection portion 212 of the heat dissipation member 21. As a result, the attachment member 23 cannot rotate in the counterclockwise direction when viewed from above, and does not fall off the heat radiating member 21. However, the fixing of the fixing portion 233 of the attachment member 23 and the connecting portion 212 of the heat dissipation member 21 is not limited to screwing. For example, the protrusion provided on the fixing portion 233 may be inserted into a hole provided on the connecting portion 212 and heat fixed, so that the fixing portion 233 and the connecting portion 212 are fixed. As described above, the assembly of the light source unit 2 according to the present embodiment is completed (see FIG. 1).

  Next, a procedure for assembling the lighting fixture X according to this embodiment will be described. However, the pair of supports 6 is already attached to the instrument body 1.

  First, the worker who performs the assembly work houses the lighting unit 4 in the appliance main body 1 and fixes the casing 41 of the lighting unit 4 to the fixing piece 110 of the bottom plate 11 of the appliance main body 1 by screwing (see FIG. 5). reference). Then, the worker attaches the light source unit 2 that has already been assembled to the casing 41 of the lighting unit 4. Here, on the lower surface of the housing 41, two protrusions 411 that are individually inserted into the two round holes 2110 of the heat radiating member 21 protrude downward. That is, the operator places the fixing portion 211 on the lower surface of the housing 41 so that the two protrusions 411 are individually inserted into the two round holes 2110 provided in the fixing portion 211 of the heat radiating member 21. However, the operator inserts the fixing portion 211 between the fixed portion 12 and the lower surface of the housing 41 so that the fixed portion 12 of the instrument body 1 is below the heat dissipation member 21 (see FIG. 7). . Then, the operator screws the light source unit 2 into the lighting unit 4 by screwing the screw inserted into the screw insertion hole 120 of the fixed portion 12 into the first screw hole 2111 provided in the fixing portion 211 of the heat radiating member 21. (See FIG. 7). At this time, the plug connector 26 of the light source unit 2 is electrically and mechanically connected to the receptacle connector 408 disposed in the back of the central opening 410B of the housing 41.

  Subsequently, the worker houses the battery unit 3 in the instrument main body 1. The connector part 32 of the battery unit 3 is connected to the connector on the receiving side of the lighting unit 4 through the opening 410A provided in the casing 41 of the lighting unit 4 when the battery unit 3 is accommodated in the appliance body 1. Electrically and mechanically connected. Here, a recess is provided in a portion near the rear end of the right side surface of the housing 41. The battery unit 3 is attached to the housing 41 of the lighting unit 4 by the projection 331 of the retaining portion 33 of the battery unit 3 being caught in the recess of the housing 41. The operator can pull out and remove the battery unit 3 from the instrument main body 1 by picking and bending the spring piece 330 of the retaining portion 33 with a finger and releasing the catch between the protrusion 331 and the recess.

  Finally, the operator inserts the pair of attachment springs 7 into the insertion grooves 13 provided in pairs on the front side and the rear side of the inner peripheral surface of the instrument body 1 so as to close the lower surface of the instrument body 1. The cover 5 is held by the instrument body 1 (see FIGS. 6C and 7). As described above, the assembly of the lighting fixture X according to the present embodiment is completed.

  As described above, the light source unit 2 according to the present embodiment includes the light source module (LED module 20) and the heat radiation member 21 that is thermally coupled to the LED module 20. Further, the light source unit 2 according to the present embodiment includes a light distribution control member (lens block 22) that controls the light distribution of light emitted from the LED module 20, and an attachment member 23 that attaches the lens block 22 to the heat dissipation member 21. Is provided. The lens block 22 includes a lens portion 220 that faces the LED module 20 and a plate-shaped outer flange portion 221 that is provided around the lens portion 220. The attachment member 23 includes a frame part 230 having a window hole 231 through which the lens part 220 is inserted, and one or a plurality of hooking parts 232 protruding from the frame part 230. The heat dissipating member 21 has a hooked portion 213 to which the hooking portion 232 is detachably hooked. The hooked portion 213 is configured to allow the hooking portion 232 to pass in the thickness direction of the heat radiation member 21 and to move the hooking portion 232 in a direction crossing the thickness direction. The attachment member 23 is configured to support the outer flange portion 221 between the heat dissipation member 21 and the frame portion 230 in a state where the hook portion 232 is hooked on the hooked portion 213.

  The light source unit 2 according to the present embodiment is configured as described above, and the lens block 22 does not require a special structure supported by the heat radiating member 21. The work time can be shortened.

  Moreover, it is preferable that the light source unit 2 according to the present embodiment further includes a pressing member 24 that supports the LED module 20 with the heat dissipation member 21 interposed therebetween. The attachment member 23 is preferably configured to support the outer flange portion 221 and the pressing member 24 between the heat dissipation member 21 and the frame portion 230 with the hook portion 232 hooked on the hooked portion 213. .

  If the light source unit 2 according to the present embodiment is configured as described above, the lens block 22 and the LED module 20 can be positioned via the pressing member 24.

  Furthermore, in the light source unit 2 according to the present embodiment, the attachment member 23 preferably includes a fixing portion 233 that is fixed to the heat dissipation member 21 in a state where the hook portion 232 is hooked on the hooked portion 213.

  If the light source unit 2 according to the present embodiment is configured as described above, it is possible to prevent the attachment member 23 from inadvertently moving and the hook portion 232 and the hooked portion 213 from being disconnected.

  Further, in the light source unit 2 according to the present embodiment, the hooked portion 213 preferably has a notch 2130 formed in the peripheral portion of the heat dissipation member 21. The hooking portion 232 preferably includes a protruding piece 2320 protruding from the frame portion 230 and a hooking piece 2321 protruding from the protruding piece 2320 in parallel with the frame portion 230. The hooking part 232 is preferably configured such that the hooked part 213 (the hooked part 2131) is inserted into the gap between the hooking piece 2321 and the frame part 230.

  If the light source unit 2 according to the present embodiment is configured as described above, the hook portion 232 can be hooked on the hooked portion 213 by rotating the mounting member 23 relative to the heat radiating member 21.

  The lighting fixture X according to this embodiment includes a light source unit 2 and a fixture body 1 that houses the light source unit 2.

  The lighting fixture X according to the present embodiment is configured as described above, and the lens block 22 does not require a special structure supported by the heat radiating member 21. The work time can be shortened.

  By the way, the lighting fixture X which concerns on this embodiment is not limited to an embedded type lighting fixture, You may be a direct attachment type lighting fixture directly attached to a ceiling.

  As shown in FIGS. 9 and 10, the direct-mounted lighting fixture XX includes a disc-like fixture body 1 and a truncated cone-shaped cover 5. The instrument body 1 is screwed to the ceiling and directly attached. The lighting unit 4 is fixed to the instrument main body 1 by a fixing bracket 14. The fixture 14 is configured such that both end portions in the longitudinal direction of the belt-shaped metal plate are bent and raised in different directions. The fixing bracket 14 is screwed to the fixture body 1 at one end 140, and the other end 141 is screwed to the casing 41 of the lighting unit 4 together with the heat radiation member 21 (the fixing portion 211) of the light source unit 2. Stopped. In this way, the lighting unit 4 is fixed to the instrument body 1 by the fixing bracket 14 (see FIG. 10). Two attachment springs 7 are attached to the instrument body 1 (see FIG. 10). On the other hand, the inner peripheral surface of the cover 5 is provided with insertion grooves into which the two attachment springs 7 are individually inserted. That is, the cover 5 is detachably attached to the instrument body 1 by inserting these two attachment springs 7 through the insertion groove (see FIG. 9).

X lighting fixture 1 fixture body 2 light source unit 20 LED module (light source module)
21 Heat Dissipation Member 22 Lens Block (Light Distribution Control Member)
23 attachment member 24 holding member 213 hooked portion 220 lens portion 221 outer flange portion 230 frame portion 232 hooking portion 233 fixing portion 2130 notch (hooked portion)
2131 hooked part (hooked part)
2320 Protruding piece 2321 Hooking piece

Claims (5)

A light source module; a heat dissipating member thermally coupled to the light source module; a light distribution control member for controlling light distribution of light emitted from the light source module; and an attachment for attaching the light distribution control member to the heat dissipating member. With members,
The light distribution control member has a lens portion facing the light source module, and a plate-shaped outer flange portion provided around the lens portion,
The mounting member includes a frame portion having a window hole through which the lens portion is inserted, and one or a plurality of hook portions protruding from the frame portion,
The heat dissipating member has a hooked portion on which the hooking portion is detachably hooked,
The hooked portion is configured to pass the hooking portion in the thickness direction of the heat radiating member, and to move the hooking portion in a direction crossing the thickness direction,
The light source unit, wherein the mounting member is configured to support the outer flange portion between the heat radiating member and the frame portion in a state where the hook portion is hooked on the hooked portion. . A pressing member that supports the light source module with the heat dissipation member interposed therebetween;
The mounting member is configured to support the outer flange portion and the pressing member between the heat radiating member and the frame portion with the hook portion hooked on the hooked portion. The light source unit according to claim 1.   The light source unit according to claim 1, wherein the attachment member includes a fixing portion that is fixed to the heat radiating member in a state where the hooking portion is hooked on the hooked portion. The hooked portion has a notch formed in a peripheral portion of the heat dissipation member,
The hooking portion has a protruding piece protruding from the frame portion, and a hooking piece protruding in parallel with the frame portion from the protruding piece, and in the gap between the hooking piece and the frame portion, The light source unit according to claim 1, wherein the hooked portion is inserted.   An illumination fixture comprising: the light source unit according to any one of claims 1 to 4; and a fixture main body that houses the light source unit.

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