JP4618171B2 - Luminescent panel lighting fixture - Google Patents

Description

  The present invention relates to a light-emitting panel type lighting apparatus using a light-emitting panel.

Conventionally, a lighting fixture in which a thin lamp is housed in a housing is known. For example, in Patent Literature 1, an operation unit that swings so as to separate the thin lamp from the casing is provided in the casing while the thin lamp is held in the casing using the attractive force of the magnet, and the operation section is operated. Thus, there is described a lighting fixture that enables a thin lamp to be removed with one touch.
JP 2001-338723 A

  However, when such a lighting fixture is arranged on the ceiling, when replacing the thin lamp, it is necessary to use a high work table to support the thin lamp, for example, to approach the ceiling. The workability of the replacement was not good.

  In recent years, attempts have been made to use a light-emitting panel using organic EL (Electro Luminescence) or inorganic EL as a light source of a lighting fixture. Since such a light-emitting panel has a thickness of several millimeters, which is even thinner than a conventional thin lamp, when the above-described structure is adopted for a lighting fixture using the light-emitting panel, it is necessary to further approach the ceiling. .

  In view of such circumstances, an object of the present invention is to provide a light-emitting panel type lighting fixture that can improve the workability of replacing a light-emitting panel.

In order to solve the above-mentioned problems, a light-emitting panel type lighting fixture of the present invention is provided with a light-emitting panel that emits light from the front surface, a housing that covers and houses the light-emitting panel from the back surface side, and the housing. A holding member that engages the light-emitting panel from the side to hold the light-emitting panel in a detachable manner, and the holding member can swing in the opening direction of the housing in the housing. And a terminal portion for receiving power supply is provided at an end portion of the light emitting panel, and the light emitting panel is provided on the rocking support portion. A power supply unit for supplying power to the power supply unit is provided, and the holding member is provided with a relay terminal for electrically connecting the terminal unit and the power supply unit. The relay terminal means that the holding member opens the casing. The holding members swing in the opposite direction to the opening direction of the housing and come into contact with each other when the light emitting panel is accommodated in the housing. it is characterized in that there.

  In order to improve safety, the light emitting panel is detachably engaged with the housing to restrict the swing of the holding member in order to keep the light emitting panel housed in the housing. It is preferable that an engaging portion is provided.

  In order to hold the light emitting panel in a simple shape so as to be detachable from the holding member, the holding member has a concave groove into which the light emitting panel can be inserted, and is elastically deformed in a direction in which the groove width of the concave groove is widened. Protrusion is provided on the side surface of the groove, and the light emitting panel has a fitting hole into which the protrusion fits when the light emitting panel is inserted into the groove. Is preferably provided.

  According to the present invention, the holding member that detachably engages the light-emitting panel from the side and holds the light-emitting panel detachably is supported by the housing so as to be swingable in the opening direction of the housing. For example, when the lighting fixture is disposed on the ceiling, if the holding member is swung downward, the direction in which the holding member engages the light emitting panel can be directed downward. The light emitting panel can be removed by pulling it downward, and conversely when attaching the light emitting panel, the light emitting panel can be engaged with the holding member by pushing up the light emitting panel from below. That is, since the light emitting panel can be attached to and detached from the holding member without using a high work table, the workability of replacing the light emitting panel can be improved.

Also, a power feeding portion is provided in the swing support portion of the housing that supports the holding member so as to be swingable, and the power supply portion of the swing support portion and the terminal portion of the light emitting panel are electrically connected to the holding member. Since the relay terminal is provided, power can be supplied to the light emitting panel simply by holding the light emitting panel on the holding member.
Further, the power feeding unit and the relay terminal are not in contact with each other when the holding member is swung in the opening direction of the housing, and the holding member is swung in the direction opposite to the opening direction of the housing to Since they are configured to come into contact with each other when housed in the housing, when the user swings the holding member downward to replace the light emitting panel, it is possible to reliably turn off the power to the light emitting panel. It is possible to ensure the safety of the replacement work, and when the user swings the holding member upward to accommodate the light emitting panel in the housing, the power supply to the light emitting panel is automatically turned on. be able to.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.

  As shown in FIG. 1, a light-emitting panel lighting device 10 according to an embodiment of the present invention is disposed on a ceiling 6 and has a plate shape that emits light downward from a surface 1a in a substantially horizontal posture. The light emitting panel 1, a housing 3 that covers and accommodates the light emitting panel 1 from the back surface 1 b side, and a holding member 2 that is disposed in the housing 3 and holds the light emitting panel 1. In addition, the light-emitting panel type lighting fixture of this invention is not restricted to what is arrange | positioned on a ceiling, For example, you may arrange | position on the wall surface perpendicular | vertical to a floor surface. In this embodiment, for convenience of explanation, in FIG. 1A, the right side is the rear, the left side is the front, and the back side (the lower side in FIG. 1B) is the left in the direction orthogonal to the paper surface. The front side (upper side in FIG. 1B) is called the right side.

  The housing 3 is attached to the ceiling 6 and has a concave portion 31 that opens downward and a flange portion 32 that spreads outward from the peripheral edge of the concave portion 31. The housing 3 is made of, for example, a steel plate or a synthetic resin.

  The recess 31 includes a rectangular bottom wall 31a in plan view and a rectangular cylindrical peripheral wall 31b extending downward from the peripheral edge of the bottom wall 31a. A pair of left and right swing support portions 33 for swingably supporting the holding member 2 is provided on the inner rear surface of the peripheral wall 31b at a substantially central position, and on the lower surface of the bottom wall 31a, An engaged portion 35 for restricting the swinging of the holding member 2 is provided at the front side position. The details of the swing support portion 33 will be described later.

  The light emitting panel 1 uses organic EL and has a rectangular shape in plan view. Specifically, as shown in FIGS. 3 and 4, the light emitting panel 1 includes a substrate 11, a first electrode layer 12, an organic light emitting layer 13, and a second electrode layer 14 stacked on the upper surface of the substrate 11. An organic EL layer, a first sealing member 15 and a second sealing member 16 are provided. That is, the lower surface of the substrate 11 constitutes the front surface 1 a of the light emitting panel 1, and the upper surface of the second sealing member 16 constitutes the back surface 1 b of the light emitting panel 1.

  The substrate 11 is a flat member for supporting the organic EL layer, and is made of a material transparent to the wavelength of light emitted from the organic light emitting layer 13, such as glass. An anode terminal portion 121 and a cathode terminal portion 141 for receiving power supply are provided side by side at the rear end portion of the upper surface of the substrate 11. The board 11 is provided with fitting holes 18 penetrating the board 11 on both the left and right sides of the anode terminal 121 and the cathode terminal 141.

  The first electrode layer 12 is a conductive thin film made of a material transparent to the wavelength of light emitted from the organic light emitting layer 13 and serves as an anode. The first electrode layer 12 is formed of, for example, ITO (Indium Tin Oxide) or the like because the organic light emitting layer 13 emits visible light. The first electrode layer 12 is drawn out so as to be partly exposed from the first sealing member 15 toward the rear to form the anode terminal portion 121.

The organic light emitting layer 13 includes at least a light emitting layer made of an organic material of a fluorescent material or an organic material containing a fluorescent material, and if necessary, a hole injection layer, a hole transport layer, an electron transport layer, and an electron injection. Provide layers. More specifically, when the first electrode layer 12 and the second electrode layer 14 are also described, for example, the following layer structure is provided.
(1) (first electrode layer 12; anode) / light emitting layer / (second electrode layer 14; cathode)
(2) (first electrode layer 12; anode) / hole transport layer / light emitting layer / (second electrode layer 14; cathode)
(3) (first electrode layer 12; anode) / light emitting layer / electron transport layer / (second electrode layer 14; cathode)
(4) (first electrode layer 12; anode) / hole transport layer / light emitting layer / electron transport layer / (second electrode layer 14; cathode)
(5) (first electrode layer 12; anode) / hole injection layer / hole transport layer / light emitting layer / electron transport layer / electron injection layer / (second electrode layer 14; cathode)
The second electrode layer 14 is a conductive thin film made of a material that reflects light having a wavelength emitted from the organic light emitting layer 13 and serves as a cathode. The second electrode layer 14 is formed of, for example, a metal or an alloy such as aluminum (Al), aluminum lithium (Al: Li), and magnesium silver (Mg: Ag). Similarly to the first electrode layer 12, the second electrode layer 14 is pulled out rearward so as to be exposed from the first sealing member 15 to form a cathode terminal portion 141.

  The first sealing member 15 and the second sealing member 16 are insulating members for hermetically sealing the organic light emitting layer 13 in cooperation with the substrate 11. For example, a resin-made first sealing member 15 having adhesiveness is applied so as to cover the first electrode layer 12 excluding the anode terminal portion 121, the organic light emitting layer 13, and the second electrode layer 14 excluding the cathode terminal portion 141. For example, the second sealing member 16 made of, for example, a glass plate member is placed on the second electrode layer 14 via the first sealing member 15 and pressure is applied thereto, whereby the second sealing member 16 is applied. Is bonded to the second electrode layer 14 by the first sealing member 15, and the peripheral edge portion of the second sealing member 16 is hermetically bonded and bonded to the substrate 11 by the first sealing member 15. Accordingly, the first sealing member 15 and the second sealing member 16 cooperate with the substrate 11 to hermetically seal the organic light emitting layer 13.

  The holding member 2 is engaged with the light-emitting panel 1 from the side to hold the light-emitting panel 1 in a detachable manner, and has a rectangular parallelepiped main body 21 that extends in the left-right direction and is flat in the vertical direction. It has the overhang | projection part 22 projected back from the center part of the rear surface of the part 21. FIG. The holding member 2 is made of, for example, a synthetic resin.

  The front surface of the main body 21 is provided with a concave groove 21a that extends in the left-right direction over the entire width of the front surface and is recessed rearward. As shown in FIG. 5, the groove width of the concave groove 21a is set to be slightly larger than the thickness of the light emitting panel 1, and the light emitting panel 1 can be inserted into the concave groove 21a in a direction parallel to the surface 1a. It has become. Moreover, the main-body part 21 can be elastically deformed in the direction which the groove width of the ditch | groove 21a spreads.

  Furthermore, hemispherical protrusions 21b that can be fitted into the fitting holes 18 are provided on both side surfaces 21c that sandwich the light emitting panel 1 of the concave groove 21a at positions corresponding to the fitting holes 18 of the light emitting panel 1. Yes. Then, when the light emitting panel 1 is inserted into the concave groove 21a, the protrusion 21b is pushed by the light emitting panel 1 and elastically deforms so that the main body 21 spreads outward, and the fitting hole 18 is in a position that matches the protrusion 21b. When coming, the projection 21 b is fitted into the fitting hole 18 by the restoring force of the main body 21, whereby the light emitting panel 1 and the holding member 2 are engaged, and the light emitting panel 1 is held by the holding member 2. On the contrary, if the light emitting panel 1 is forcibly pulled, the main body portion 21 is elastically deformed so as to spread outward again, whereby the fitting state between the protrusion 21b and the fitting hole 18 is released, and the light emitting panel 1 is held by the holding member. 2 can be removed.

  As shown in FIG. 6, the swing support portion 33 of the housing 3 has a rectangular cross section and extends in the front-rear direction. The front end portion of the swing support portion 33 is formed in a rounded shape. The overhanging portion 22 of the holding member 2 is fitted between the swing support portions 33.

  The overhanging portion 22 and the swing support portion 33 are formed with insertion holes 22b and 33b into which a swing shaft 34 (see FIG. 1) extending in the left-right direction can be inserted, and these insertion holes 22b, By swinging the swing shaft 34 through 33b, the support member 2 swings and supports in a vertical direction between the horizontal position shown in FIG. 1A and the vertical position shown in FIG. Supported by the portion 33.

  Further, at the front side position of the back surface 1b of the light emitting panel 1, when the holding member 2 swings to the horizontal position and the light emitting panel 1 is accommodated in the recess 31, the cover of the housing 3 is maintained in order to keep the state. An engagement portion 17 that engages with the engagement portion 35 and restricts the swinging of the holding member 2 is provided. The engaging portion 17 can be elastically deformed in the front-rear direction, and is detachably engaged with the engaged portion 35.

  Next, a configuration for supplying power to the light emitting panel 1 will be described with reference to FIGS.

  Each swing support portion 33 is provided with a power feeding portion 4 </ b> A or 4 </ b> B for supplying power to the light emitting panel 1 on the facing surface 33 a on the side facing the other swing support portion 33. These power feeding parts 4 </ b> A and 4 </ b> B are made of a conductive metal material, and have a straight line part 43 extending in the front-rear direction along the swing support part 33. The part is connected to a power supply circuit (not shown) via a wiring or the like.

  The right power supply portion 4B has a ring-shaped contact portion 42 concentric with the insertion hole 33b, while the left power supply portion 4A has an arc shape concentric with the insertion hole 33b and is located behind the insertion hole 33b. Arc-shaped contact portion 41 that extends approximately 45 ° upward from the center.

  In addition, the holding member 2 includes a relay terminal 5B for electrically connecting the anode terminal portion 121 of the light emitting panel 1 and the power feeding portion 4B, and a cathode terminal portion 141 of the light emitting panel 1 and the power feeding portion 4A. A relay terminal 5A for electrical connection is provided. These relay terminals 5A and 5B have a pair of upper and lower (front and rear in FIG. 6) first plate spring portions 51 opposed to each other with the concave groove 21a therebetween, and an inner rear end portion of the holding member 2 of the first plate spring portion 51. And second flat spring portions 52 and 53 that are flat in the left-right direction and that are exposed from the left and right side surfaces 22 a of the overhang portion 22.

  A contact portion 51a that is curved in a bow shape so as to protrude into the groove 21a is formed at the tip of each first leaf spring portion 51. When the light emitting panel 1 is inserted into the concave groove 21a and the protrusion 21b is fitted into the fitting hole 18, the portion where the anode terminal portion 121 and the cathode terminal portion 141 of the light emitting panel 1 are formed is the first leaf spring. Each contact part 51a and each terminal part 121,141 are electrically connected by being pinched | interposed into the contact part 51a of the part 51, respectively.

  The second leaf spring portion 53 of the right relay terminal 5B has a ring-shaped contact portion 53a concentric with the insertion hole 22b at the tip. And the 2nd leaf | plate spring part 53 is formed a little openly so that the contact part 53a may be pressed by the contact part 42 of the electric power feeding part 4B. Moreover, since the contact part 53a is carrying out the ring shape, even if the holding member 2 rock | fluctuates, it always contacts the contact part 42 of the electric power feeding part 4B.

  The second leaf spring portion 52 of the relay terminal 5A on the left side has an arc shape concentric with the insertion hole 22b at the tip, and extends upward and forward by approximately 180 ° from the rear position (upper position in FIG. 6) of the insertion hole 22b. An arc-shaped contact portion 52a is provided. And the 2nd leaf | plate spring part 52 is formed a little openly so that the contact part 52a may be pressed by the contact part 41 of 4 A of electric power feeding parts. Further, since the contact portion 52a has an arc shape as described above, as shown in FIG. 7A, when the holding member 2 swings to the horizontal position, it contacts the contact portion 41. As shown in FIG. 7B, when the holding member 2 swings to the vertical position, it is separated from the contact portion 41 and is not in contact.

  In the light-emitting panel type lighting fixture 10 of the present embodiment, the holding member 2 that engages the light-emitting panel 1 from the side and holds the light-emitting panel 1 in a detachable manner swings downward in the opening direction of the recess 31. Since the casing 3 is supported so that it can be used, the holding member 2 emits light by releasing the engaged state between the engaging portion 17 and the engaged portion 35 and swinging the holding member 2 downward. Since the direction of engagement with the panel 1 can be directed downward, the light-emitting panel 1 can be removed by pulling the light-emitting panel 1 downward in this state. Conversely, when the light-emitting panel 1 is attached, When pushed up from below, the light emitting panel 1 can be engaged with the holding member 2. That is, since the light emitting panel 1 can be attached to and detached from the holding member 2 without using a high work table, the workability of replacing the light emitting panel 1 can be improved.

  In addition, power supply portions 4A and 4B are provided on a swing support portion 33 that supports the holding member 2 so as to be swingable, and the power supply portions 4A and 4B and the terminal portions 121 and 141 of the light emitting panel 1 are electrically connected to the holding member 2. Since the relay terminals 5 </ b> A and 5 </ b> B for connecting to are provided, it is possible to supply power to the light emitting panel 1 simply by holding the light emitting panel 1 on the holding member 2.

  Further, the contact part 41 of the power feeding part 4A and the contact part 52a of the relay terminal 5A are not in contact with each other when the holding member 2 swings to the vertical position, and to each other when the holding member 2 swings to the horizontal position. Since it is configured to contact, when the user swings the holding member 2 downward in order to replace the light emitting panel 1, the power supply to the light emitting panel 1 can be surely turned off, and the replacement work is safe. When the user swings the holding member 2 upward to accommodate the light-emitting panel 1 in the recess 31 of the housing 3, the power supply to the light-emitting panel 1 is automatically turned on. Can be.

  Here, in order to restrict the swing of the holding member 2 in order to keep the light emitting panel 1 accommodated in the recess 31, for example, a magnet can be used, but as in the present embodiment, Safety can be improved by swinging the holding member mechanically between the engaged portion 35 and the engaging portion 17.

  Moreover, in this embodiment, since the fitting hole 18 was provided in the light emission panel 1, and the protrusion 21b which can be fitted to the fitting hole 18 was provided in the both sides | surfaces 21c of the ditch | groove 21a of the holding member 2, it is a simple shape. The light emitting panel 1 can be detachably held on the holding member 2.

  Further, since the fitting holes 18 are provided on both the left and right sides of the anode terminal portion 121 and the cathode terminal portion 141, the contact state between the terminal portions 121 and 141 and the contact portions 51a of the relay terminals 5A and 5B. Become stable.

  In the above embodiment, the left relay terminal 5A electrically connected to the cathode terminal 141 and the contact parts 52a and 41 of the power feeding part 4A are arcuate, but the anode terminal 121 is electrically connected. The right relay terminal 5B connected to the contact portion 53a and the contact portions 53a and 42 of the power feeding portion 4B may be arcuate.

  Furthermore, the shape of the relay terminals 5A and 5B can be selected as appropriate.

  Moreover, in the said embodiment, although the rocking | fluctuation support part 33 is provided in the surrounding wall 31b of the recessed part 31, the rocking | fluctuation support part 33 may be provided in the bottom wall 31a. Moreover, the rocking | fluctuation support part 33 does not need to be a left-right pair, and they may be comprised integrally.

  Furthermore, in order to removably fix the holding member 2 in the recess 31, for example, a mechanism that is locked when pressed once and is unlocked when pressed twice, such as used in doors of interior racks, etc. is adopted. It is also possible to do.

  Moreover, the fitting hole 18 does not need to be comprised by the through hole, may be comprised by the bottomed recessed part, and the processus | protrusion 21b is provided only in one side 21c of the recessed groove 21a. May be.

  Further, the shape of the light emitting panel 1A may be a circular shape or a polygonal shape in a plan view, and the shape of the concave portion 21 can be appropriately changed according to the shape of the light emitting panel 1A.

  The light emitting panel 1 is not limited to the one using an organic EL, and may be one using an inorganic EL.

It is a figure which shows the light emission panel type lighting fixture which concerns on one Embodiment of this invention, (a) is side sectional drawing, (b) is a bottom view. It is side surface sectional drawing of the light emission panel type lighting fixture when a holding member is rock | fluctuated below. It is a top view of a light emission panel. (A) is the II sectional view taken on the line of FIG. 3, (b) is the II-II sectional view taken on the line of FIG. It is a principal part expanded side surface sectional view of a holding member and a light emission panel. It is a disassembled perspective view of a holding member and a rocking | fluctuation support part. It is a figure which shows the relationship between an electric power feeding part and a relay terminal, (a) shows the state when rocking | fluctuating a holding member upward, (b) shows the state when rocking | fluctuating a holding member below. Show.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Light emitting panel 1a Front surface 1b Back surface 121 Anode terminal part 141 Cathode terminal part 17 Engagement part 18 Fitting hole 2 Holding member 21 Main body part 21a Groove 21b Protrusion 22 Overhang part 3 Housing | casing 33 Oscillation support part 34 Oscillation shaft 35 Engagement part 4A, 4B Power supply part 5A, 5B Relay terminal 10 Light emitting panel type lighting fixture

Claims (3)

A light-emitting panel that emits light from the front surface, a housing that covers and houses the light-emitting panel from the back side, and a light-emitting panel that is disposed in the housing and engages the light-emitting panel from the side and can be attached and detached A holding member for holding the
In the casing, there is provided a swing support portion that supports the holding member so as to be swingable in the opening direction of the casing.
A terminal portion for receiving power supply is provided at an end portion of the light emitting panel, and a power feeding portion for supplying power to the light emitting panel is provided at the swing support portion. ,
While the holding member is provided with a relay terminal for electrically connecting the terminal portion and the power feeding portion ,
The power feeding unit and the relay terminal are not in contact with each other when the holding member swings in the opening direction of the casing, and the holding member swings in a direction opposite to the opening direction of the casing to emit the light. A light-emitting panel type lighting apparatus, wherein the panels are configured to come into contact with each other when they are accommodated in a housing . The light emitting panel is provided with an engaging portion that removably engages the housing and restricts the swing of the holding member in order to keep the light emitting panel housed in the housing. The light-emitting panel lighting device according to claim 1 , wherein The holding member has a concave groove into which the light emitting panel can be inserted, and is elastically deformable in a direction in which the groove width of the concave groove is widened.
A protrusion is provided on a side surface of the groove, and the light emitting panel is provided with a fitting hole into which the protrusion is fitted when the light emitting panel is inserted into the groove. The light emission panel type lighting fixture of Claim 1 or 2 characterized by these.

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