JP7599151B2 - Lighting fixtures, light source devices, lighting fixture bodies - Google Patents

Description

This disclosure generally relates to lighting fixtures, light source devices, and lighting fixture bodies, and more specifically to lighting fixtures, light source devices, and lighting fixture bodies in which the light source device and lighting fixture body can be detachably attached.

A lighting fixture has been disclosed that allows parts to be shared, is lightweight, and can be fitted with a light source suited to the application (see Patent Document 1).

In the lighting fixture of Patent Document 1, the reflector, which is the light distribution means, is attached to the top plate through a resin mounting opening, so that heat during lighting can be efficiently conducted to the socket device, the reflector, and the top plate, and dissipated. In addition, since there is a ring-shaped portion extending from the light-projecting opening on the other side of the reflector toward the ceiling surface, heat can also be dissipated from this ring-shaped portion, suppressing the thermal impact on the fixture body.

JP 2011-44412 A

However, lighting fixtures can sometimes cause glare. This presents a technical challenge of reducing the sense of glare from lighting fixtures. One of the technical challenges is the need to be able to easily change the height of the panel and light source so that the glare can be adjusted.

The present disclosure has been made in consideration of the above problems, and aims to provide a lighting fixture, a light source device, and a lighting fixture body in which the light source device and the lighting fixture body are detachable and which are easy to install.

A lighting fixture according to an aspect of the present disclosure includes a light source device and a lighting fixture body. The light source device includes a light source, a cylindrical base that holds the light source, a panel that is attached to the base and transmits light from the light source, and a first mounting portion that is provided on the base and is used to detachably mount the light source device to the lighting fixture body. The lighting fixture body includes a ring-shaped frame body having an opening that penetrates in the vertical direction , and a second mounting portion that is provided on the frame body and to which the first mounting portion of the light source device is detachably mounted in a state in which the base of the light source device is inserted into the opening from below and a part of the base is exposed above the frame body . The first mounting portion has a plurality of protrusions that protrude from a side surface of the base. The second mounting portion has a plurality of holding grooves that slidably hold the plurality of protrusions. In this state, by rotating the light source device around the central axis of the frame body along the vertical direction, the multiple protrusions slide within the multiple retaining grooves, respectively, and the light source device is removably attached to the lighting fixture body.

A light source device according to one aspect of the present disclosure is a light source device that is detachably attached to a lighting fixture body having a ring-shaped frame body with an opening penetrating in the vertical direction . The light source device includes a light source, a cylindrical base body that holds the light source, a panel that is attached to the base body and transmits light from the light source , and an attachment part . The attachment part of the light source device is provided on the base body, and when the light source device is attached to the lighting fixture body, the base of the light source device is inserted into the opening from below, and a part of the base is exposed above the frame body, and the light source device is detachably attached to the attachment part of the lighting fixture body in a state where the base of the light source device is inserted into the opening from below, and a part of the base is exposed above the frame body. The attachment part of the light source device has a plurality of protrusions protruding from a side surface of the base. The attachment part of the lighting fixture body has a plurality of holding grooves that slidably hold the plurality of protrusions. In the above state, by rotating the light source device around the central axis of the frame body along the vertical direction, the plurality of protrusions slide within the plurality of holding grooves, and the light source device is detachably attached to the lighting fixture body.

A lighting fixture body according to one aspect of the present disclosure is a lighting fixture body to which a light source device having a light source and a cylindrical base that holds the light source is detachably attached. The lighting fixture body includes a ring-shaped frame body having an opening that penetrates in the vertical direction , and a mounting portion that is provided on the frame body and to which the mounting portion of the light source device is detachably attached in a state in which the base of the light source device is inserted into the opening from below and a part of the base is exposed above the frame body. The mounting portion of the light source device has a plurality of protrusions that protrude from a side surface of the base. The mounting portion of the lighting fixture body has a plurality of holding grooves that slidably hold the plurality of protrusions, respectively. In this state, by rotating the light source device around the central axis of the frame body along the vertical direction, the plurality of protrusions slide within the plurality of holding grooves, and the light source device is detachably attached to the lighting fixture body.

According to the present disclosure, it is possible to provide a lighting fixture, a light source device, and a lighting fixture body in which the light source device and the lighting fixture body are detachable and which are easy to install.

Fig. 1A is an external view of a lighting fixture according to an embodiment, and Fig. 1B is an external view of the lighting fixture in which the height of the panel is changed. FIG. 2 is an external view of the lighting fixture according to the embodiment, in which the lighting fixture body and the light source device are separated from each other. FIG. 3 is an enlarged view of the Z1 region in FIG. FIG. 4 is an external view of a light source device of a lighting fixture according to an embodiment. FIG. 5 is an exploded perspective view of the same. 6A is a top view of a protrusion of a light source device of a lighting fixture according to an embodiment, FIG 6B is a side view of the same, and FIG 6C is a cross-sectional view of the same. FIG. 7 is a cross-sectional view of a lighting fixture according to one embodiment. FIG. 8 is a diagram illustrating the above light source device with the panel removed.

The embodiments and modifications described below are merely examples of the present disclosure, and the present disclosure is not limited to the embodiments and modifications. Other than these embodiments and modifications, various modifications may be made according to the design, etc., as long as they do not deviate from the technical concept of the present disclosure.

(Embodiment)
Hereinafter, a lighting fixture 1, a light source device 3, and a lighting fixture body 2 according to this embodiment will be described with reference to FIGS. 1A to 8. FIG.

(1) Overview A lighting fixture 1 according to the present embodiment is a lighting fixture used as, for example, a downlight. In the present embodiment, the lighting fixture 1 will be described as a downlight as an example. The lighting fixture 1 shown in Figs. 1A and 1B is attached to a mounting portion provided on, for example, a ceiling.

As shown in Fig. 2, the lighting fixture 1 of this embodiment includes a lighting fixture body 2 and a light source device 3. In Fig. 1A, the lighting fixture body 2 and the light source device 3 are at the same height on the underside 101 of the lighting fixture 1. In contrast, in the lighting fixture 1 shown in Fig. 1B, the light source device 3 is located above the lighting fixture body 2. In other words, in the lighting fixture 1 of this embodiment, the height of the light source device 3 can be changed relative to the lighting fixture body 2.

As shown in FIG. 5, the light source device 3 includes a light source 30, a panel 31 that transmits light from the light source 30, and a first mounting portion 33 that is detachably attached to the lighting fixture body 2 (see FIG. 2).

As shown in FIG. 2, the lighting fixture body 2 includes a frame body 20 and a second mounting portion 21 to which the first mounting portion 33 of the light source device 3 is detachably attached.

At least one of the first mounting portion 33 and the second mounting portion 21 is provided with a movable mechanism 5 that allows the panel 31 to be adjusted to a plurality of heights relative to the underside 101 of the lighting fixture body 2 when the light source device 3 is attached to the lighting fixture body 2. In this embodiment, as shown in FIG. 2, the second mounting portion 21 is provided with the movable mechanism 5.

By providing the movable mechanism 5 to the lighting fixture body 2, the height of the light source device 3 relative to the lighting fixture body 2, i.e., the height of the panel 31 and the light source 30 (see FIG. 8) relative to the lighting fixture body 2, can be changed. If the height of the panel 31 and the light source 30 can be changed, for example, glare can be reduced. The glare of the lighting fixture 1 is evaluated based on the angle between the panel 31 and the line of sight, with the angle when the panel 31 is viewed from directly below the lighting fixture 1 being 90 degrees. The flat position (see FIG. 1A) is when the lower surface 101 of the lighting fixture 1 and the panel 31 are at the same height, and the height-changed position (see FIG. 1B) is when the height of the panel 31 is higher than the lower surface 101 of the lighting fixture 1. For example, when the angle between the panel 31 and the line of sight is 15 degrees, the geometric mean luminance (cd/m ² ) can be reduced by about 50% when the flat position is compared with the height-changed position. In addition, by changing the height of the panel 31 and the light source 30, the area where glare occurs can be reduced by about 30%. That is, by changing the height of the panel 31 and the light source 30, it is possible to reduce glare. Here, the geometric mean luminance is a method of evaluating the average value of luminance within the visual field by the geometric mean. The sense of brightness is proportional to the logarithm of the luminance. When averaging the luminance within the visual field, a value that is more suited to human senses can be obtained by averaging the luminance within the visual field by the geometric mean rather than the arithmetic mean. Note that the luminance within the visual field may be averaged by the arithmetic mean.

As shown in FIG. 3, the movable mechanism 5 includes a holding groove 51 that slidably holds the protrusion 50 of the first mounting portion 33 in the second mounting portion 21. In the movable mechanism 5, the protrusion 50 and the fixing protrusion 52 of the holding groove 51 are fitted together, so that the light source device 3 can be attached to the lighting fixture body 2. Since the holding groove 51 branches into at least two or more in the vertical direction (height direction of the lighting fixture), when the light source device 3 is attached to the lighting fixture body 2, the panel 31 and the light source 30 (see FIG. 8) can be attached at least two or more different heights. In other words, depending on the number of branches of the holding groove 51, the user can change the height at which the panel 31 and the light source 30 are installed. In this embodiment, the holding groove 51 has a first holding groove 51A and a second holding groove 51B as shown in FIG. 3. In addition, the holding groove 51 has a first fixing protrusion 52A and a second fixing protrusion 52B for fixing the protrusion 50. Specifically, the movable mechanism 5 has a first fixing protrusion 52A that corresponds to the first holding groove 51A, and a second fixing protrusion 52B that corresponds to the second holding groove 51B.

4, the light source device 3 includes a grip portion 34 provided on the upper surface 102 of the base 37 of the light source device 3. The grip portion 34 has, for example, a cross shape. The light source device 3 has a drive unit 35 (see FIG. 5) that drives the light source 30 (see FIG. 5). The drive unit 35 is provided, for example, inside the grip portion 34. When the drive unit 35 is built into the upper surface 102 of the base 37 of the light source device 3, when the light source device 3 is viewed from the outside, it appears as a convex shape formed on the upper surface 102 of the base 37. By making this convex shape into a cross-shaped grip portion 34, it becomes easier for the user to grasp the light source device 3. As shown in FIG. 4, the light source device 3 further includes a power input unit 40 that inputs power. When power is input from the power input unit 40, the light source 30 is driven by the drive unit 35, and light is emitted from the light source 30. The light emitted from the light source 30 is diffused by the panel 31.

The lighting fixture body 2 (see FIG. 2) further includes an outer flange 24 and a mounting spring 22. The outer flange 24 and the frame 20 are also called a flange 6, and the lighting fixture 1 is attached to the ceiling by sandwiching the ceiling plate between the mounting spring 22 and the flange 6.

(2) Configuration The configuration of the lighting fixture 1 of the present embodiment will be described. As shown in Fig. 1A and Fig. 1B, the lighting fixture 1 includes a lighting fixture main body 2 and a light source device 3. The lighting fixture main body 2 and the light source device 3 will be described.

(2-1) Lighting fixture body As shown in FIG. 2, the lighting fixture body 2 comprises a frame body 20, a plurality of (two in this embodiment) second mounting portions 21 for detachably mounting the first mounting portions 33 of the light source device 3, a plurality of (two in this embodiment) mounting springs 22, and a plurality of (two in this embodiment) insertion portions 23.

The frame body 20 has an opening 8, and as shown in FIG. 1A, the bottom surface of the frame body 20 (bottom surface 101 of the lighting fixture 1) has an outer flange 24. The outer flange 24 protrudes perpendicularly to the frame body 20 from the bottom end of the frame body 20. The frame body 20 is made of, for example, polycarbonate. The frame body 20 and the outer flange 24 together are also called the flange 6 (see FIG. 2).

As shown in FIG. 2, the second mounting portion 21 is provided on the upper surface of the frame body 20 in a plurality of portions (two in this embodiment). In this embodiment, the second mounting portion 21 includes an insertion portion 23, a sliding portion 25, and a movable mechanism 5. The movable mechanism 5 is a mechanism that changes the height of the panel 31 and the light source 30. Here, the height means the height based on the lower surface 101 of the lighting fixture 1. In other words, the movable mechanism 5 is a mechanism that can change the height of the panel 31 and the light source 30 from the lower surface 101 of the lighting fixture 1. The movable mechanism 5 has a plurality of holding grooves 51 (two in this embodiment) and a plurality of fixing protrusions 52 (two in this embodiment). In this embodiment, the holding groove 51 has a first holding groove 51A and a second holding groove 51B. The fixing protrusion 52 has a first fixing protrusion 52A and a second fixing protrusion 52B. That is, the second attachment portion 21 includes an insertion portion 23, a sliding portion 25, a first holding groove 51A, a second holding groove 51B, a first fixing protrusion 52A, and a second fixing protrusion 52B.

As shown in FIG. 3, the insertion portion 23 is an insertion opening for inserting the first mounting portion 33 (protrusion portion 50). The protrusion portion 50 is inserted into the second mounting portion 21 through the insertion portion 23. The insertion portion 23 is formed by a cut in the frame body 20. The sliding portion 25 is a cut along the circumferential direction of the second mounting portion 21. The holding groove 51 is formed by a cut perpendicular to the circumferential direction of the second mounting portion 21 and a plurality of (two in this embodiment) cuts along the circumferential direction of the second mounting portion 21 connected thereto. The user can selectively change the height of the panel 31 and the light source 30 by selecting one of the plurality of holding grooves 51. Each of the plurality of holding grooves 51 has a fixing protrusion 52. The fixing protrusion 52 fits into the protrusion portion 50 to fit the first mounting portion 33 and the second mounting portion 21.

The mounting spring 22 shown in FIG. 2 is the part that mounts the lighting fixture 1 to the ceiling. The mounting spring 22 and the flange 6 sandwich the ceiling board to fix the lighting fixture 1 to the ceiling.

(2-2) Light Source Device As shown in FIG. 5 , the light source device 3 includes a base 37, a panel 31, an LED (Light Emitting Diode) module 38, a drive unit 35, a power input unit 40, a grip unit 34, and a first attachment unit 33 that is detachably attached to the lighting fixture body 2.

The base 37 and the gripping portion 34 are integrated as shown in Figs. 2 and 4. The base 37 is cylindrical and has an LED module 38 built in. The base 37 is made of, for example, polycarbonate.

The grip portion 34 is formed integrally with the base 37 of the light source device 3. The grip portion 34 is, for example, cross-shaped, which makes the grip portion 34 easy to grasp. The drive unit 35 is built into the grip portion 34. The grip portion 34 is formed of polycarbonate, just like the base 37.

The panel 31 transmits light from the light source 30. The panel 31 converts the light of the LED, which is a point light source that propagates inside the panel 31, into light of a surface light source, and diffuses the converted light in all directions. The panel 31 is fitted into the base 37 of the light source device 3. The panel 31 is made of, for example, polycarbonate.

The LED module 38 is a module using one or more (15 in this embodiment, see FIG. 8) LED elements as the light source 30. The LED elements as the light source 30 are white LED elements. The white LED elements used in this embodiment emit white light by combining, for example, blue LED elements with red and green phosphors. The blue LED elements use, for example, aluminum indium gallium nitride (AlInGaN) or indium gallium nitride (InGaN) as the light-emitting layer. As shown in FIG. 7, the LED module 38 is stored in the base 37 of the integrated base 37 and gripping portion 34. As shown in FIG. 8, when the panel 31 fitted to the light source device 3 is removed, the circular LED module 38 appears. Fifteen LED elements as the light source 30 are arranged so as to be distributed throughout the LED module 38. The LED module 38 is attached to the base 37 by three heat staking 41 (see FIG. 8).

As shown in FIG. 5, the drive unit 35 receives power from the power input unit 40 and converts it into a voltage that drives the LED module 38. The drive unit 35 is built into the gripping unit 34 of the unit in which the base body 37 and the gripping unit 34 are integrated, so that the board of the drive unit 35 is parallel to the vertical direction of the lighting fixture 1 (see FIG. 7).

The power input unit 40 is a lead wire that supplies power to the drive unit 35. The power input unit 40 is connected to a commercial power source from the top surface 102 of the light source device 3 via the ceiling or the like. The lead wire that is the power input unit 40 is formed of, for example, a copper wire.

The top view, side view, and cross-sectional view of the first mounting portion 33 are shown in Figures 6A to 6C, respectively. As shown in Figures 6A and 6B, in this embodiment, the protrusion 50 of the first mounting portion 33 protrudes from the side surface 103 of the base 37.

The first mounting portion 33 can be detachably attached to the lighting fixture body 2. In this embodiment, as shown in FIG. 4, the first mounting portion 33 has a plurality of (two in this embodiment) protrusions 50. As shown in FIG. 6C, the cross section of the first mounting portion 33, i.e., the protrusions 50, has an H-shape. The cross-sectional shape of the protrusions 50 fits into the fixing protrusions 52 of the holding grooves 51 of the first mounting portion 33 described above, thereby preventing the first mounting portion 33 and the second mounting portion 21 from coming off. The protrusions 50, which are the first mounting portion 33, are formed of, for example, polycarbonate, like the base 37 and the gripping portion 34.

(3) Installation, Removal, and Height Change The installation and replacement of the lighting fixture 1 will be described. As shown in Fig. 2, the lighting fixture 1 of the present embodiment can be separated into a lighting fixture body 2 and a light source device 3. Therefore, even if the lighting fixture body 2 or the light source device 3 is damaged, the lighting fixture 1 can be repaired and continued to be used by replacing the damaged portion.

The user integrates the lighting fixture body 2 and the light source device 3. In this case, the user grasps the cross-shaped gripping portion 34, inserts the light source device 3 through the opening 8 of the lighting fixture body 2, and pulls it up. Here, the user rotates the light source device 3 or the lighting fixture body 2 to align the protrusion 50 of the light source device 3 with the insertion portion 23 of the second mounting portion 21 of the lighting fixture body 2. When the protrusion 50 is inserted into the insertion portion 23, the user rotates the protrusion 50 along the sliding portion 25 so that the light source device 3 rotates relative to the lighting fixture body 2. By rotating, the protrusion 50 slides on the sliding portion 25 and reaches the movable mechanism 5. The user selects one of the two holding grooves 51 of the movable mechanism 5. For example, when the user selects the first holding groove 51A, which is closer to the opening 8, of the two holding grooves 51, the lighting fixture body 2 and the light source device 3 can be installed so that the panel 31 and the lower surface 101 of the lighting fixture 1 are at the same height, as shown in FIG. 1A. Also, when the user selects the second holding groove 51B, which is closer to the grip 34, of the two holding grooves 51, the lighting fixture body 2 and the light source device 3 can be installed so that the panel 31 and the light source 30 are higher than the lower surface 101 of the lighting fixture 1, as shown in FIG. 1B. In either case, the user rotates the lighting fixture body 2 and the light source device 3 in the selected holding groove 51 until the protrusion 50 and the fixing protrusion 52 are engaged. By engaging the protrusion 50 and the fixing protrusion 52, the rotation of the lighting fixture body 2 and the light source device 3 is suppressed, and positioning is completed. In this embodiment, it is described as being inserted into the first holding groove 51A, which is closer to the opening 8, of the two holding grooves 51.

The user attaches the lighting fixture 1, in which the lighting fixture body 2 and light source device 3 are integrated, to a mounting part on the ceiling. First, the user connects the power input part 40 of the light source device 3 to the lead wire of a commercial power source located in the ceiling or other space. By connecting the commercial power source to the power input part 40, it becomes possible to supply power to the lighting fixture 1. Next, the user hooks the mounting spring 22 onto the mounting part on the ceiling and pushes the lighting fixture 1 into the mounting part. This causes the mounting spring 22 to return to its original position, and the ceiling board is sandwiched between the mounting spring 22 and the flange 6, completing the installation of the lighting fixture 1.

Next, the removal of the lighting fixture 1 will be described. When removing the lighting fixture 1 from its mounting part on the ceiling, the user pulls the flange 6 towards the floor surface, which releases the mounting spring 22 and allows the lighting fixture 1 to be removed from the mounting part. Since the lighting fixture 1 is connected to the commercial power source, the connection between the power input unit 40 and the lead wire connected to the commercial power source is released. In this way, the lighting fixture 1 can be removed from its mounting part on the ceiling.

Since the removed lighting fixture 1 has the lighting fixture body 2 and the light source device 3 still connected, when replacing either one, the user needs to separate the lighting fixture body 2 and the light source device 3. Next, a case where the lighting fixture body 2 and the light source device 3 are separated will be described. Since the protrusion 50 and the fixing protrusion 52 are engaged, the user can grasp the gripping portion 34 and rotate it in the opposite direction to when it was attached, thereby disengaging the protrusion 50 and the fixing protrusion 52, and the lighting fixture body 2 and the light source device 3 can rotate. When the lighting fixture body 2 and the light source device 3 are rotated in the opposite direction to when they were attached, the protrusion 50 passes through the vertical cut of the movable mechanism 5. Since the first holding groove 51A and the sliding portion 25 are at the same height from the bottom surface 101 of the lighting fixture 1, the protrusion 50 slides on the sliding portion 25 and hits the insertion portion 23 by continuing to rotate the lighting fixture body 2 and the light source device 3. When the user encounters the insertion portion 23, the user pushes the light source device 3 toward the lighting fixture body 2 while still holding the grip portion 34, and the lighting fixture body 2 and the light source device 3 are separated. In this way, the user can remove the lighting fixture 1 from the mounting portion on the ceiling.

The lighting fixture 1 of this embodiment is characterized in that the user can change the height of the panel 31 and light source 30 of the lighting fixture 1. Next, a case where the height of the panel 31 and light source 30 of the lighting fixture 1 is changed will be described. The height of the panel 31 and light source 30 of the lighting fixture 1 can be changed by switching the holding groove 51 of the movable mechanism 5 from the first holding groove 51A to the second holding groove 51B.

In a state where the lighting fixture body 2 and the light source device 3 are separated, the user integrates the lighting fixture body 2 and the light source device 3. The steps of inserting the protrusion 50 into the insertion portion 23 and sliding the protrusion 50 along the sliding portion 25 are the same as those described above. Next, when the protrusion 50 reaches the movable mechanism 5, the user slides the protrusion 50 along the vertical groove 53 of the movable mechanism 5 so as to select the second holding groove 51B of the movable mechanism 5, and then selects the second holding groove 51B. With the second holding groove 51B selected, the user further rotates the lighting fixture body 2 and the light source device 3. The protrusion 50 fits into the second fixing protrusion 52B, and the lighting fixture body 2 and the light source device 3 fit together and no longer rotate. In this state, when the user attaches the lighting fixture 1 to the mounting portion on the ceiling, the height of the panel 31 and the light source is changed with respect to the lower surface 101 of the lighting fixture 1.

The height of the panel 31 and the light source 30 has been changed in the above description from the state in which the lighting fixture body 2 and the light source device 3 are separated, but the height of the panel 31 and the light source 30 may be changed when the lighting fixture body 2 and the light source device 3 are integrated. That is, the lighting fixture 1 may be removed from the mounting portion on the ceiling, the second holding groove 51B may be reselected from the first holding groove 51A, and the lighting fixture 1 may be reattached to the mounting portion on the ceiling. In this case, the user who removed the lighting fixture 1 from the mounting portion on the ceiling grasps the cross-shaped gripping portion 34 and rotates the lighting fixture body 2 and the light source device 3 in the opposite direction to when they were attached from the first holding groove 51A, thereby releasing the engagement between the protrusion 50 and the first fixing protrusion 52A. When the user rotates the protrusion 50 to the vertical groove 53 of the movable mechanism 5, the protrusion 50 is moved in the vertical direction of the movable mechanism 5 (the height direction of the lighting fixture 1). When the protrusion 50 is adjusted to the height of the second holding groove 51B, the lighting fixture body 2 and the light source device 3 are rotated so that the protrusion 50 slides in the direction of the end of the second holding groove 51B. When rotated to the end of the second holding groove 51B, the protrusion 50 fits into the second fixing protrusion 52B, and the lighting fixture body 2 and the light source device 3 are fixed. In this state, the user can change the height of the panel 31 and the light source 30 by attaching the lighting fixture 1 to the mounting part on the ceiling without separating the lighting fixture body 2 and the light source device 3 (see FIG. 1B).

(4) Advantages The lighting fixture 1 of this embodiment includes a light source device 3 and a lighting fixture body 2. The light source device 3 has a light source 30, a base 37, a panel 31, and a first attachment portion 33. The base 37 holds the light source 30. The panel 31 is attached to the base 37 and transmits light from the light source 30. The first attachment portion 33 is provided on the base 37 and detachably attaches the light source device 3 to the lighting fixture body 2. The lighting fixture body 2 has a frame body 20 and a second attachment portion 21. The second attachment portion 21 is provided on the frame body 20 and detachably attaches the light source device 3 to the lighting fixture body 2.

With this configuration, the lighting fixture 1 can be separated into the light source device 3 and the lighting fixture main body 2. Therefore, if a malfunction occurs in the lighting fixture main body 2, the lighting fixture main body 2 can be replaced by purchasing an additional lighting fixture main body 2, and if a malfunction occurs in the light source device 3, the light source device 3 can be purchased by purchasing an additional lighting fixture main body 2. In other words, the user can replace the lighting fixture main body 2 and the light source device 3 at will.

At least one of the first mounting portion 33 and the second mounting portion 21 is equipped with a movable mechanism that allows the panel 31 to be adjusted to multiple heights when the light source device 3 is attached to the lighting fixture body 2.

By providing a movable mechanism that can adjust the panel 31 to at least two different heights, the position of the panel 31 can be changed according to personal preferences regarding the appearance of light and the sense of glare. In particular, the position of the panel, which is a major cause of glare, can be moved as desired, reducing glare.

The gripping part 34 has a built-in drive unit 35 and is cross-shaped, making it easy to hold during installation operations. This makes installation work easier.

(5) Modifications Modifications are listed below. The modifications described below can be applied in appropriate combination with the above-described embodiments.

In the embodiment, the light source device 3 has a configuration in which the base 37 and the grip portion 34 are integrally formed, but this configuration is not limited to this. The base 37 and the grip portion 34 of the light source device 3 may be formed separately.

In the embodiment, the drive unit 35 is configured to be installed so that the substrate of the drive unit 35 is parallel to the vertical direction of the lighting fixture 1, but this configuration is not limited. The drive unit 35 may also be installed so that the substrate of the drive unit 35 is perpendicular to the vertical direction of the lighting fixture 1.

In the embodiment, the first mounting portion 33 has a protrusion 50, and the second mounting portion 21 has a retaining groove 51, but the first mounting portion 33 and the second mounting portion 21 are not limited to this configuration. The first mounting portion 33 may have a retaining groove, and the second mounting portion 21 may have a protrusion.

In the embodiment, the first mounting portion 33 has multiple (two in the embodiment) protrusions 50, and the second mounting portion 21 has multiple (two in the embodiment) retaining grooves 51, but the first mounting portion 33 and the second mounting portion 21 are not limited to this configuration. There may be one protrusion 50, or there may be three or more. Similarly, there may be one retaining groove 51, or there may be three or more retaining grooves, depending on the number of protrusions 50.

In the embodiment, the grip portion 34 is cross-shaped, but is not limited to this configuration. The grip portion 34 may be, for example, X-shaped or I-shaped.

In the embodiment, the LED element that is the light source 30 of the LED module 38 is a white LED element, and the white LED element is configured by combining a blue LED element with red and green phosphors, but this configuration is not limited. The white LED element may emit white light by combining, for example, a blue LED element with a yellow phosphor, or may emit white light by combining a red LED element, a green LED element, and a blue LED element.

(summary)
As described above, the lighting fixture (1) according to the first aspect includes a light source device (3) and a lighting fixture body (2). The light source device (3) includes a light source (30), a base (37), a panel (31), and a first mounting portion (33). The base (37) holds the light source (30). The panel (31) is attached to the base (37) and transmits light from the light source (30). The first mounting portion (33) is provided on the base (37) and detachably mounts the light source device (3) to the lighting fixture body (2). The lighting fixture body (2) includes a frame body (20) and a second mounting portion (21). The second mounting portion (21) is provided on the frame body (20) and detachably mounts the light source device (3) to the lighting fixture body (2).

With this configuration, the lighting fixture body (2) and the light source device (3) can be separated, so that, for example, if the lighting fixture body (2) is damaged, the lighting fixture (1) can be repaired by purchasing the lighting fixture body (2), and if the light source device (3) is damaged, the lighting fixture (1) can be repaired by purchasing the light source device (3).

In the lighting fixture (1) according to the second aspect, in the first aspect, at least one of the first mounting portion (33) and the second mounting portion (21) has a movable mechanism (5) that can change the panel (31) to a plurality of heights when the light source device (3) is attached to the lighting fixture body (2).

With this configuration, when the light source device (3) is attached to the lighting fixture body (2), the panel (31) and the light source (30) have a movable mechanism (5) that can be adjusted to multiple heights, making it possible to change the way the light appears and adjust the glare.

In the lighting fixture (1) according to the third aspect, in the first aspect, the first mounting portion (33) has a protrusion (50) protruding from the side surface (103) of the base (37), and the second mounting portion (21) has a retaining groove (51) that slidably retains the protrusion (50).

According to this configuration, the projection (50) protruding from the side surface (103) of the base (37) fits into the retaining groove (51) of the second mounting portion (21), so that the lighting fixture body (2) and the light source device (3) fit together, and the lighting fixture body (2) and the light source device (3) can be easily fixed together.

In the lighting fixture (1) according to the fourth aspect, in the second aspect, the first mounting portion (33) has a protrusion (50) protruding from the side surface (103) of the base (37), and the second mounting portion (21) has a retaining groove (51) that slidably retains the protrusion (50).

According to this configuration, the projection (50) protruding from the side surface (103) of the base (37) fits into the retaining groove (51) of the second mounting portion (21), so that the lighting fixture body (2) and the light source device (3) fit together, and the lighting fixture body (2) and the light source device (3) can be easily fixed together.

In the lighting fixture (1) according to the fifth aspect, in the fourth aspect, the movable mechanism (5) has a retaining groove (51) that branches into multiple parts in the height direction, so that the panel (31) can be installed at multiple heights when the light source device (3) is attached to the lighting fixture body (2).

According to this configuration, the holding groove (51) branches into multiple branches in the height direction, and by selecting one of the multiple branched holding grooves (51), when the light source device (3) is attached to the lighting fixture body (2), the height of the panel (31) and the light source (30) can be easily set to multiple heights. This makes it possible to adjust the appearance of the light and the glare.

In the lighting fixture (1) according to the sixth aspect, in any one of the first to fifth aspects, the light source device (3) further has a grip portion (34) provided on the base (37) on the side opposite the panel (31).

According to this configuration, when the grip portion (34) is provided for operating the light source device (3), there is an advantage that it becomes easier to operate the lighting fixture body (2) and the light source device (3). In particular, it becomes easier to grasp the light source device (3).

In the lighting device (1) according to the seventh aspect, in the sixth aspect, the grip portion (34) is cross-shaped.

According to this configuration, when the grip portion (34) is provided for operating the light source device (3), there is an advantage that it is easier to operate the lighting fixture body (2) and the light source device (3). In addition, by making it cross-shaped, there is an advantage that it is easier to operate when rotating the lighting fixture body (2) and the light source device (3). In particular, it is easier to grasp the light source device (3).

In the lighting fixture (1) according to the eighth aspect, in the sixth or seventh aspect, the light source device (3) further includes a drive unit (35) that drives the light source (30). The drive unit (35) is provided inside the grip portion (34).

With this configuration, the light source device (3) can effectively utilize the internal space of the grip portion (34) by incorporating the drive unit (35) inside the grip portion (34).

In the lighting fixture (1) according to the ninth aspect, in any of the first to seventh aspects, the light source device (3) further includes a drive unit (35) that drives the light source (30).

According to this configuration, the grip portion (34) of the light source device (3) has a drive portion (35) built in, so that the drive portion (35) that drives the light source (30) can be built in regardless of the shape of the grip portion (34).

In the lighting fixture (1) according to the tenth aspect, in any of the first to ninth aspects, the light source device (3) further includes a power input section (40) provided on the base (37) on the side opposite the panel (31).

According to this configuration, since the light source device (3) further has a power input section (40), if the light source device (3) breaks down, the lighting fixture (1) can be repaired by purchasing a new light source device (3). In addition, since it is provided on the opposite side of the panel (31), it has the advantage of being easy to connect to a commercial power source from the ceiling.

In the lighting fixture (1) according to the eleventh aspect, in any of the first to tenth aspects, the lighting fixture body (2) further includes a mounting spring (22) for fixing the lighting fixture body (2) to a mounting surface.

With this configuration, the lighting fixture body (2) has a mounting spring (22), so that the lighting fixture (1) can be attached to the mounting part by the frame body (20), the outer flange (24), and the mounting spring (22).

In the lighting fixture (1) according to the twelfth aspect, in any of the first to eleventh aspects, the panel (31) is fitted and fixed to the base (37) of the light source device (3).

With this configuration, the panel (31) is fixed by fitting with the base (37) of the light source device (3), and the lighting fixture (1) is unlikely to fall off even when it is attached to the ceiling.

The light source device (3) according to the thirteenth aspect is removably attached to the lighting fixture body (2). The light source device (3) includes a light source (30), a base (37), a panel (31), and an attachment portion (33). The base (37) holds the light source (30). The panel (31) is attached to the base (37) and transmits light from the light source (30). The attachment portion (33) is provided on the base (37) and is removably attached to the attachment portion (21) of the lighting fixture body when the light source device (3) is attached to the lighting fixture body (2).

With this configuration, if the light source device (3) of the lighting fixture (1) is damaged, the lighting fixture (1) can be repaired by purchasing a new light source device (3). In addition, the light source device (3) can be replaced according to personal preference, such as white or incandescent light.

The lighting fixture body (2) according to the fourteenth aspect has a light source device (3) equipped with a light source (30) removably attached thereto. The lighting fixture body (2) has a frame body (20) and an attachment portion (21). The attachment portion (21) is provided on the frame body (20), and the attachment portion (33) of the light source device is removably attached thereto.

According to this configuration, if the lighting fixture body (2) of the lighting fixture (1) is damaged, the lighting fixture (1) can be repaired by purchasing the lighting fixture body (2). In addition, the lighting fixture body (2) can be replaced according to personal preferences such as design.

REFERENCE SIGNS LIST 1 Lighting fixture 2 Lighting fixture body 3 Light source device 5 Movable mechanism 20 Frame 21 Second mounting portion 22 Mounting spring 30 Light source 31 Panel 33 First mounting portion 34 Grip portion 35 Driving portion 37 Base 40 Power input portion 50 Protrusion 51 Holding groove 103 Side surface

Claims (12)

A light source device;
A lighting fixture body,
The light source device is
A light source;
A cylindrical base that holds the light source;
a panel attached to the base and transmitting light from the light source;
a first attachment portion provided on the base for detachably attaching the light source device to the lighting fixture body;
The lighting fixture body includes:
A ring-shaped frame having an opening extending therethrough in the vertical direction ;
a second attachment portion provided on the frame body , to which the first attachment portion of the light source device is detachably attached in a state in which the base of the light source device is inserted from below into the opening portion and a part of the base is exposed above the frame body ,
The first attachment portion has a plurality of protrusions protruding from a side surface of the base,
the second attachment portion has a plurality of holding grooves that slidably hold the plurality of protrusions,
In the above state, by rotating the light source device around the central axis of the frame body along the up-down direction, the plurality of protrusions slide within the plurality of holding grooves, respectively, so that the light source device is detachably attached to the lighting fixture body.
Lighting fixtures. At least one of the first mounting portion and the second mounting portion is
a movable mechanism capable of changing the height of the panel to a plurality of heights when the light source device is attached to the lighting fixture body;
2. A lighting device according to claim 1. The movable mechanism has a holding groove that branches into a plurality of parts in a height direction, so that the panel can be installed at a plurality of heights when the light source device is attached to the lighting fixture body.
3. A lighting device according to claim 2. The light source device further includes a grip portion provided on the base on an opposite side to the panel.
The lighting fixture according to any one of claims 1 to 3. The gripping portion is cross-shaped.
5. A lighting device according to claim 4. The light source device further includes a drive unit that drives the light source,
The drive unit is provided inside the grip unit.
6. A lighting fixture according to claim 4 or 5. The light source device further includes a drive unit that drives the light source.
The lighting fixture according to any one of claims 1 to 5. The light source device further includes a power input section provided on the base on the opposite side to the panel.
The lighting fixture according to any one of claims 1 to 7. The lighting fixture body further comprises a mounting spring for fixing the lighting fixture body to a mounting surface.
The lighting fixture according to any one of claims 1 to 8. The panel is fitted to and fixed to the base of the light source device.
The lighting fixture according to any one of claims 1 to 9. A light source device that is detachably attached to a lighting fixture body having a ring-shaped frame body with an opening penetrating in the vertical direction,
A light source;
A cylindrical base that holds the light source;
a panel attached to the base and transmitting light from the light source;
an attachment portion provided on the base, the attachment portion being detachably attached to the attachment portion of the lighting fixture body in a state in which the base of the light source device is inserted into the opening from below and a part of the base is exposed above the frame body when the light source device is attached to the lighting fixture body;
The mounting portion of the light source device has a plurality of protrusions protruding from a side surface of the base,
The mounting portion of the lighting fixture body has a plurality of holding grooves that slidably hold the plurality of protrusions,
In the above state, by rotating the light source device around the central axis of the frame body along the up-down direction, the plurality of protrusions slide within the plurality of holding grooves, respectively, so that the light source device is detachably attached to the lighting fixture body.
Light source device. A lighting fixture body to which a light source device having a light source and a cylindrical base for holding the light source is detachably attached,
A ring-shaped frame having an opening extending therethrough in the vertical direction;
an attachment portion provided on the frame body, to which the attachment portion of the light source device is detachably attached in a state in which the base of the light source device is inserted into the opening from below and a part of the base is exposed above the frame body;
The mounting portion of the light source device has a plurality of protrusions protruding from a side surface of the base,
The mounting portion of the lighting fixture body has a plurality of holding grooves that slidably hold the plurality of protrusions,
In the above state, by rotating the light source device around the central axis of the frame body along the up-down direction, the plurality of protrusions slide within the plurality of holding grooves, respectively, so that the light source device is detachably attached to the lighting fixture body.
The lighting fixture body.

Images