JP6341703B2 - Light source unit and lighting apparatus - Google Patents

Description

  The present invention relates to a light source unit and a lighting fixture. In particular, the present invention relates to a light source unit that houses an LED module in a translucent cover, and a lighting fixture including the light source unit.

There is a technique related to a lighting fixture for attaching a translucent cover in which an LED module is accommodated to a fixture main body through an LED attachment portion (see, for example, Patent Document 1).
Further, there is a technique related to a straight tube LED lamp in which an LED module and a heat sink are fitted into a slit formed inside a light-transmitting cover, and the LED module and the heat sink are brought into close contact with each other (see, for example, Patent Document 2).

JP 2012-186095 A JP 2011-113876 A

In the prior art, there is a problem that the translucent cover is bent due to heat generation of the LED and external stress, and the adhesion between the translucent cover and the LED mounting portion is inferior.
In addition, when a part of the outer periphery of the translucent cover is cut, there is a problem that the LED module and the heat sink are detached from the translucent cover due to elastic deformation of the translucent cover.

  An object of this invention is to provide the light source unit and lighting fixture which can make a translucent cover closely_contact | adhere to a LED attaching part.

  A light source unit according to the present invention includes a long plate portion that comes into contact with a light source substrate on which a light source is mounted, and a tubular portion that rises from both sides in the longitudinal direction of the plate portion and covers the light source substrate. A member and a member attaching portion to which the tubular member is attached, the member attaching portion being in contact with the plate portion on the outside of the tubular member and extending along the longitudinal direction of the plate portion An abutting portion and a pair of projecting pieces projecting from the lateral sides of the member abutting portion in the short direction of the member abutting portion, and the tubular member is a length of the plate portion It is provided with a pair of holding parts that are provided on both sides in the scale direction and hold the pair of protruding pieces.

  According to the light source unit of the present invention, in the tubular member, there is an effect that the plate portion with which the light source substrate accommodated in the abutting portion can be brought into close contact with the member attaching portion to which the tubular member is attached.

1 is a perspective view of a lighting fixture 100 according to Embodiment 1. FIG. FIG. 3 is an exploded perspective view of the lighting fixture 100 according to Embodiment 1 with the reflector 130 removed. FIG. 3 is an exploded perspective view of the lighting apparatus 100 according to Embodiment 1 with a frame body 140 removed. 2 is an example of an exploded perspective view showing a light source unit 120 according to Embodiment 1. FIG. It is an example of the schematic diagram which looked at the translucent cover 122 of the light source unit 120 which concerns on Embodiment 1 from the edge part. 3 is an example of a partially broken cross-sectional view showing a light source unit 120 according to Embodiment 1. FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description of the embodiments, directions such as “up”, “down”, “left”, “right”, “front”, “back”, “front”, “back” are for convenience of explanation. It is only described as such, and does not limit the arrangement or orientation of devices, instruments, parts, and the like.

Embodiment 1 FIG.
FIG. 1 is a perspective view of a lighting fixture 100 according to the present embodiment. FIG. 2 is an exploded perspective view in which the reflector 130 is removed from the lighting apparatus 100 according to the present embodiment. FIG. 3 is an exploded perspective view with the frame body 140 removed from the lighting apparatus 100 according to the present embodiment.

  The lighting fixture 100 is attached to attachment parts, such as a ceiling surface and a wall surface, for example. In this embodiment, the ceiling surface is described as a mounted portion, the mounted portion side is described as a ceiling surface side or upper (upper side), and the opposite side of the mounted portion side is described as an irradiation direction side or lower (lower). To do. Note that this embodiment can be applied even when a wall surface or the like is used as the attached portion.

  As shown in FIGS. 1 to 3, the lighting fixture 100 includes a fixture main body 110, a lighting device 200 attached to the fixture main body 110, a light source unit 120, a reflector 130, and a frame 140.

  The instrument main body 110 is formed of sheet metal. As shown in FIG. 3, the instrument main body 110 includes a main body attachment surface portion 116 having a substantially square shape, and a main body peripheral portion 117 formed by being bent from four sides of the main body attachment surface portion 116. In addition, the main body attachment surface part 116 does not need to be square. The main body mounting surface portion 116 may have other shapes such as a rectangle, a polygon, a circle, and an ellipse.

As shown in FIG. 3, the main body attachment surface portion 116 includes a lighting device attachment portion 111 to which the lighting device 200 is attached, a ceiling attachment portion 113 to be attached to an attachment portion such as a ceiling, and a frame attachment to which the frame body 140 is attached. Part 115.
The main body peripheral portion 117 is formed by bending the peripheral edge portion of the main body attachment surface portion 116 into an L shape, and has a function for increasing the strength against bending of the instrument main body 110 (main body attachment surface portion 116).

The lighting device 200 is attached to the lighting device attachment portion 111. The lighting device 200 receives power supplied from a commercial power source, etc., generates secondary power for the light source unit to be supplied to the light source unit 120 from this power, and supplies the generated secondary power to the light source unit 120 with an electric wire or the like. Supply through.
The detailed structure of the light source unit 120 will be described later.

  The reflector 130 is made of sheet metal. As shown in FIG. 2, the reflector 130 is formed by bending a sheet metal into a V shape. The reflector 130 is attached to the instrument main body 110 (main body attachment surface part 116) so as to hide the ceiling attachment part 113 that is fixed when the instrument main body 110 is attached to the attached part.

The frame 140 is made of sheet metal. As shown in FIG. 3, four frame members formed by bending a sheet metal are attached in contact with each other and formed into a “B” shape. The frame body 500 is attached to the frame body attaching portion 115 so as to cover the main body peripheral portion 117.
Note that the frame does not have to have a “B” shape. Other shapes may be used as long as the shape corresponds to the shape of the instrument body 110.

FIG. 4 is an example of an exploded perspective view showing the light source unit 120 according to the present embodiment.
FIG. 5 is an example of a schematic view of the translucent cover 122 of the light source unit 120 according to the present embodiment as viewed from the end.
FIG. 6 is an example of a partially cutaway sectional view showing the light source unit 120 according to the present embodiment.
Next, the detailed structure of the light source unit 120 will be described with reference to FIGS.

As shown in FIG. 4, the light source unit 120 includes two LED modules 121 and a translucent cover 122 that stores the two LED modules 121 connected in series.
The translucent cover 122 diffuses and transmits the light emitted from the LED module 121.
The light source unit 120 also includes an LED attachment portion 123 to which the translucent cover 122 is attached and an end cover 124 that assists in attaching the translucent cover 122 to the LED attachment portion 123. The end cover 124 also has a function of fixing the translucent cover 122 and the LED attachment portion 123 to the instrument main body 110.
The translucent cover 122 is a tubular member that houses the LED substrate 121c therein.

  The LED module 121 includes 24 LEDs 121a (light sources), two connectors 121b, and an elongated rectangular LED substrate 121c (light source substrate) on which the LEDs 121a and the connectors 121b are mounted.

The 24 LEDs 121a are mounted on the LED board 121c, and the respective LEDs 121a are connected in series.
The connector 121b is mounted on both end portions (longitudinal tip portions) of the LED substrate 121c, and is connected to the end portions (one each for the cathode terminal and the anode terminal) of the LEDs 121a connected in series.

  The number of LEDs 121a is not limited to 24, and may be any number such as 4, 8, 16, 25, and 32. Further, the configuration may not be such that the two LED substrates 121c are connected in series. One LED 121c substrate may be used, or three or more LED substrates 121c may be used. Also, the connection method of the LEDs 121a may not be in series, and may be in parallel, circular series, or other connection methods.

As shown in FIG. 5, the translucent cover 122 has a long and hollow shape with an end face shape in the longitudinal direction having a semi-circular shape (mountain shape, dome shape). Inside the translucent cover 122, there are provided support pieces 122a that indicate both ends of the LED module 121 in the short direction when the LED module 121 is slid and inserted.
The translucent cover 122 rises from a long substrate abutting portion 122c (plate portion) that abuts the LED substrate 121c, and from both sides of the substrate abutting portion 122c in the longitudinal direction, and covers the LED 121a. It is a tubular member provided with a cover part 1221.

The translucent cover 122 is in close contact with the back surface of the LED substrate 121c (the back surface of the mounting surface on which the LED 121a is mounted) when the LED module 121 is slid and inserted into the translucent cover 122. The board | substrate contact part 122c to perform is provided.
The shape of the translucent cover 122 in FIG. 5 is a shape whose height in the vertical direction (see FIG. 1) is lower than that of the translucent cover 122 in FIG. This is because in FIG. 5, the height in the vertical direction is shown to be higher in order to make the explanation easier to understand. The translucent cover 122 may have any cross-sectional shape as long as the translucent cover 122 has a hollow shape and has a configuration corresponding to the substrate contact portion 122c. The cross-sectional shape may not be a substantially mountain shape, but may be a triangular shape, a quadrangular shape, a polygonal shape, a jagged shape, an indefinite shape, or other shapes.

The translucent cover 122 is provided on both sides of the board contact portion 122c in the longitudinal direction (longitudinal direction), and includes a pair of holding portions 122b that hold a pair of protruding pieces 1233 of the LED mounting portion 123 described later. Prepare.
As shown in FIG. 5, the translucent cover 122 includes holding portions 122 b that protrude in an L shape from both lateral ends of the translucent cover 122 and the substrate contact portion 122 c (bottom surface side).
The holding part 122b protrudes from the substrate contact part 122c and is formed to be bent in an end face L shape in the direction of the center part in the short direction of the substrate contact part 122c.

The holding portion 122b includes a standing portion 1221b that protrudes from the substrate contact portion 122c, and a pressing portion 1222b that is bent from the tip of the standing portion 1221b toward the center in the short direction of the substrate contact portion 122c. A protruding piece 1233 provided on an LED mounting portion 123 described later is inserted into a gap 122d between the bent portion (pressing portion 1222b) and the substrate contact portion 122c.
The holding part 122b is formed from one end of the side part along the longitudinal direction of the substrate contact part 122c to the other end. In addition, you may provide a pair of holding | maintenance part 122b only in the position corresponding to the position of a pair of protrusion piece 1233 of the LED attachment part 123 mentioned later.

The LED attachment part 123 (member attachment part) attaches the translucent cover 122.
The LED attachment portion 123 includes a rectangular cover attachment portion 1231 (member abutting portion) with which the substrate contact portion 122c which is the bottom surface of the translucent cover 122 contacts, and both ends of the cover attachment portion 1231 in the short direction. Two (both sides) raised portions 1232 formed by being bent from each other.
Further, a main body attaching portion 1234 formed by bending outward from the end portions of the two raised portions 1232 is provided.

The cover attaching portion 1231 does not have to be rectangular as long as the cover attaching portion 1231 has a long shape that comes into contact with the substrate contact portion 122c.
The main body attachment portion 1234 has screw attachment holes 1235 for fixing to the instrument main body 110 with screws in the vicinity of both ends in the longitudinal direction.

  At both ends in the short direction of the cover mounting portion 1231, there are a pair of protruding pieces 1233 formed by cutting and raising from the upright portion 1232. The pair of protruding pieces 1233 protrudes in the short direction (see FIG. 5) from the sides on both sides of the cover attaching portion 1231 in the longitudinal direction. The pair of projecting pieces 1233 are formed at a total of three locations including two locations at both ends in the longitudinal direction of the cover mounting portion 1231 (the translucent cover 122) and one location at the center.

  The translucent cover 122 is slid into the gap 122d of the holding portion 122b of the translucent cover 122 while the protruding piece 1233 is inserted, and the translucent cover 122 is attached to the LED attachment portion 123. The gap 122d formed by the holding portion 122b has such a width that the cover mounting portion 1231 and the substrate contact portion 122c are sufficiently in close contact when the translucent cover 122 is mounted on the LED mounting portion 123. And

  FIG. 6 is an example of a partially broken cross-sectional view of the light source unit 120 in a state in which the translucent cover 122 in which the LED module 121 is housed is attached to the LED attachment portion 123 and the end cover 124 is further attached. is there. The light source unit 120 is attached to the instrument body 110 with screws.

  As shown in FIG. 5, the support piece 122a of the translucent cover 122 may be a plate piece protruding in the direction of the center in the short direction of the substrate contact portion 122c, or may protrude downward as shown in FIG. It may be a curved shape. When the support piece 122a has the shape shown in FIG. 6, the LED substrate 121c can be pressed against the substrate contact portion 122c at the tip of the support piece 122a by the elastic force of the support piece 122a.

  Further, the holding portion 122b of the translucent cover 122 may have an L-shaped cross section provided with a standing portion 1221b and a pressing portion 1222b as shown in FIG. 5, or protrudes upward and curves as shown in FIG. The shape may be sufficient. When the holding part 122b has the shape shown in FIG. 6, the protruding piece 1233 of the LED mounting part 123 can be pressed against the board contact part 122c by the tip of the holding part 122b by the elastic force of the holding part 122b.

  As described above, the LED module 121 and the LED mounting portion 123 can be brought into closer contact with each other by forming the support piece 122a and the holding portion 122b as shown in FIG.

  As described above, by attaching the translucent cover 122 to the LED attachment portion 123, the both ends and the central portion of the translucent cover 122 in the longitudinal direction are supported by the holding portion 122b and the protruding piece 1233. Thus, the degree of adhesion between the translucent cover 122 and the cover mounting portion 1231 can be increased. Further, by providing the protruding piece 1233 at the center portion in the longitudinal direction of the cover mounting portion 1231, the center portion of the light transmitting cover 122 is lifted from the cover mounting portion 1231 even when stress is applied to the light transmitting cover 122. Therefore, it is possible to prevent the translucent cover 122 from being bent.

Note that the pair of protruding pieces 1233 is not limited to three, and may be two or four or more. If the protruding piece 1233 is sufficiently long in the longitudinal direction, it may be provided at one location.
Moreover, in addition to the three places of the longitudinal direction both ends and center part of the LED attachment part 123, you may provide a pair of protrusion piece 1233 in two places between each of a center part and both ends. Thereby, it is possible to prevent the translucent cover 122 from being lifted from the cover attachment portion 1231 between the center portion and the end portion.

  The end cover 124 includes a recess 124a that surrounds the end when the translucent cover 122 is attached to the LED attachment portion 123, and a cover protrusion 124b that is opposite to the recess 124a and protrudes from one end side.

In a state where the translucent cover 122 is attached to the LED attachment portion 123, both ends of the translucent cover 122 and the LED attachment portion 123 are fitted into the recess 124a. In this state, the cover protrusion 124b is fixed to the instrument body 110 with screws.
The end cover 124 fixes the translucent cover 122 and the LED mounting portion 123 while preventing the translucent cover 122 from sliding in the longitudinal direction of the LED mounting portion 123.

  Thus, according to the light source unit 120 and the luminaire 100 according to the present embodiment, the holding portion 122b is provided in the translucent cover 122, and the protruding piece 1233 that fits in the holding portion 122b is provided in the LED mounting portion 123. By providing, the close_contact | adherence degree of the translucent cover 122 and the LED attachment part 123 can be raised. With this structure, the heat generated by the LED 121a can be easily transferred to the LED mounting portion 123 via the translucent cover 122.

  Further, according to the light source unit 120 and the lighting apparatus 100 according to the present embodiment, the LED module 121 and the cover mounting portion 1231 are both brought into contact with the substrate of the translucent cover 122 by the protruding piece 1233 and the holding portion 122b. It can be pressed against the portion 122c. Therefore, the adhesion between the LED module 121 and the substrate contact portion 122c of the translucent cover 122 and the adhesion between the substrate contact portion 122c and the cover mounting portion 1231 can both be improved, and heat dissipation from the LED 121a can be performed. Sex is better.

  As mentioned above, although embodiment of this invention was described, you may implement one part of the invention contained in these embodiment. Alternatively, two of the inventions included in these embodiments may be partially combined. In addition, this invention is not limited to these embodiment, A various change is possible as needed.

  DESCRIPTION OF SYMBOLS 100 Lighting fixture, 110 Appliance main body, 111 Lighting device attaching part, 113 Ceiling attaching part, 115 Frame attaching part, 116 Main body attaching surface part, 117 Main body peripheral part, 120 Light source unit, 121 LED module, 121a LED, 121b connector, 121c LED board, 122 translucent cover, 122a support piece, 122b holding part, 122c board contact part, 122d gap, 123 LED mounting part, 124 end cover, 124a recessed part, 124b cover protruding part, 130 reflector, 140 frame Body, 1231 Cover attaching part, 1221b Standing part, 1222b Holding part, 1232 Standing upper part, 1233 Protruding piece, 1234 Body attaching part, 1235 Screw attaching hole.

Claims (4)

A tubular member provided with a long plate portion that comes into contact with a light source substrate on which a light source is mounted, and a cover portion that rises from both side portions in the long direction of the plate portion and covers the light source substrate;
A member attaching portion to which the tubular member is attached,
The member mounting portion is
A long member abutting portion that abuts the plate portion outside the tubular member, and extends along a longitudinal direction of the plate portion;
A pair of raised portions in which both side portions in the longitudinal direction of the member contact portion are bent;
Wherein a pair of the raised portion pair of projecting pieces a portion is cut and raised in, and a pair of projecting pieces projecting in the lateral direction before Symbol member abutment,
The tubular member is
Provided on both sides in the longitudinal direction of the plate portion, the light source unit having a pair of holding portions for holding the pair of projecting pieces. The member attachment portion, a light source unit according to 請 Motomeko 1 provided with the pair of projecting pieces in a central portion in the longitudinal direction of the member contact portion. The member mounting portion further includes
The pair of projecting pieces are provided between the central portion of the member contact portion and both ends in the longitudinal direction,
The pair of holding portions is
The light source unit according to 請 Motomeko 2 formed over the other end from one end of both sides in the longitudinal direction of the plate portion. A light source unit according to any one of claims 1 to 3,
An instrument body to which the light source unit is attached;
Wherein attached to the instrument body, lighting instrument with a lighting device and to light the light source mounted on the light source unit.

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