JP2022124804A - Downlight with sensor - Google Patents

Abstract

To provide a downlight with a sensor which enables reduction of a size of a portion exposed when the downlight is installed at a structure such as a ceiling.SOLUTION: A downlight includes: a body which may be inserted into an attachment hole formed on an installation surface and has a storage space capable of storing a light source unit; a flange part which extends from an edge part of the body to the radial outer side and is located on the installation surface when the downlight is installed on the installation surface; and a sensor unit having a detection part which detects a specific environment. The sensor unit includes a casing which may be attached to the flange part. The casing is attached to a part as seen in a circumferential direction of the flange part.SELECTED DRAWING: Figure 1

Description

The present invention relates to downlights with sensors.

Conventionally, a downlight with a sensor function is known. For example, in Patent Document 1, a flat LED lamp having a GX53 type base part and a socket in which the LED lamp is mounted are provided inside, and a circular shape projecting radially outward from the lower opening end and an annular body attached to the lower surface of the flange of the instrument body via a mounting means, and installed embedded in a structure such as a ceiling. A downlight is disclosed. The sensor-equipped downlight of Patent Document 1 has a storage portion formed inside the annular body, and a sensor unit having an illuminance/human sensor is stored in the storage portion, and the sensor portion is exposed downward. and is configured to control the on/off or dimming of the LED lamp in conjunction with the sensor output.

JP 2012-174588 A

In the sensor-equipped downlight disclosed in Patent Document 1, the annular body must have a larger diameter than the flange portion of the instrument main body in order to form the mounting means, and a storage portion for the sensor unit is formed inside. Therefore, it is necessary to have a thickness several times that of the flange portion of the instrument body. For this reason, in the sensor-equipped downlight of Patent Document 1, since such an annular body with a large diameter and thickness is attached to the entire lower surface of the flange portion of the fixture body, it is installed on a structure such as a ceiling. There is a problem that the portion (flange portion, annular body, etc.) that is actually exposed is extremely large and conspicuous.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a sensor-equipped downlight capable of suppressing the size of an exposed portion when installed on a structure such as a ceiling.

In order to achieve the above objects, a downlight with a sensor according to the present invention includes: a body portion which can be inserted into a mounting hole formed in an installation surface and has a housing space capable of housing a light source unit; a flange portion extending radially outward from the lower green portion of the sensor unit and positioned on the installation surface when installed on the installation surface; and a sensor unit having a detection unit for detecting a specific environment, is provided with a casing that can be attached to the flange, wherein the casing is attached to a part of the flange in the circumferential direction.

The sensor-equipped downlight according to the present invention further includes a top plate provided at the upper end of the body portion, and the top plate extends from a portion of the body portion in the circumferential direction toward the body portion in the radial direction. It is preferable that the casing and the top plate are arranged at different positions in the circumferential direction of the body. In this case, it is more preferable that the casing and the top plate are arranged at positions opposite to each other in the circumferential direction of the body.

It is preferable that the sensor-equipped downlight according to the present invention further include a terminal block arranged on the top plate.

The sensor-equipped downlight according to the present invention further includes a control unit for controlling the light source unit, the body has a socket for mounting the light source unit in the housing space, and the control unit includes the It is preferably arranged in a space above the socket of the body.

In the sensor-equipped downlight according to the present invention, a part of the peripheral wall of the body portion bulges outward in the radial direction, and the bulging portion guides wiring that electrically connects the sensor unit and the control unit. It preferably forms a passage.

In the sensor-equipped downlight according to the present invention, it is preferable that the sensor unit has a manual operation section capable of changing detection conditions of the detection section.

Advantageous Effects of Invention According to the present invention, it is possible to provide a sensor-equipped downlight capable of suppressing the size of an exposed portion when installed on a structure such as a ceiling.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows roughly the downlight with a sensor which concerns on this embodiment. It is an exploded perspective view showing a downlight with a sensor concerning this embodiment. FIG. 2 is an enlarged cross-sectional view showing the sensor-equipped downlight according to the present embodiment; It is a bottom view showing the downlight with a sensor according to the present embodiment. FIG. 3 is a block diagram showing the control configuration of the sensor-equipped downlight according to the embodiment;

Next, a preferred embodiment of a sensor-equipped downlight according to the present invention will be described with reference to the drawings. In addition, the following embodiments do not limit the invention according to each claim, and not all combinations of features described in the embodiments are essential for the solution of the invention. . In addition, the drawings are schematic diagrams in which emphasis, omissions, and ratios are appropriately adjusted in order to illustrate the present invention, and may differ from actual shapes, positional relationships, and ratios.

As shown in FIGS. 1 to 3, the sensor-equipped downlight 1 according to the present embodiment is a downlight installed embedded in an installation surface such as a ceiling, and has a mounting hole 3 ( 3), and a sensor unit 50 having a detection section 52 for detecting a specific environment. The device body 10 includes a body portion 11 that can be inserted into the mounting hole 3 formed in the installation surface, and a lower green portion of the body portion 11 that extends radially outward. and a flange portion 12 positioned thereon.

In addition, the sensor-equipped downlight 1 includes a light source unit 22 detachably attached inside the body portion 11 (accommodation space S1 described later), and an end portion (upper end portion) of the body portion 11 opposite to the flange portion 12. a top plate 30 provided on the top plate 30, a terminal block 40 disposed on the top plate 30, a pair of mounting springs 16 for mounting the body portion 11 on the installation surface, and a control unit 70 for controlling the light source unit 22. I have it.

Hereinafter, in the present specification, the direction from the body portion 11 to the top plate 30 will be referred to as "up", and the opposite direction will be referred to as "down". However, the vertical direction referred to here is merely a direction determined for convenience of explanation, and is not limited to the vertical direction in actual use. Further, in this specification, the term "installation surface" refers to a surface such as a ceiling when the sensor-equipped downlight 1 is viewed from below when the sensor-equipped downlight 1 is installed on the installation surface. "Positioned above" means that the sensor-equipped downlight 1 is positioned on the surface of a surface such as a ceiling when viewed from below.

As shown in FIG. 2, the body portion 11 is formed in a substantially cylindrical shape, and includes a partition portion 18 that partitions the internal space, and a socket 20 for attaching a light source unit 22 .

As shown in FIG. 3, the partition part 18 is formed in a flat plate shape and configured to partition the internal space of the body part 11 in the vertical direction. A socket 20 is arranged in the lower part of the partition part 18 , and a control unit 70 described later is arranged in the upper part of the partition part 18 .

As shown in FIGS. 2 and 3, the socket 20 is attached to the lower surface of the partition 18 and has an opening 20a (see FIG. 2) into which a projecting portion 28a of the light source unit 22, which will be described later, can be inserted. The socket 20 is electrically connected to a control unit 70 which will be described later. In addition, the socket 20 can be separated from the partition portion 18 as shown in FIG.

As shown in FIG. 4 , the flange portion 12 is formed in an annular shape, and has an opening having substantially the same diameter as the opening of the body portion 11 . The flange portion 12 is configured to contact the installation surface directly or indirectly via any member such as a sealing member or a cushioning material when installed on the installation surface.

From the viewpoint of miniaturization, the diameter D1 of the opening of the flange portion 12 is preferably, for example, 5 cm to 15 cm (specifically, about 8.6 cm). Also, from the viewpoint of miniaturization, the thickness of the flange portion 12 is preferably, for example, 1 mm to 5 mm (specifically, about 3 mm), and the width D2 of the flange portion 12 is, for example, 10 mm to 5 mm. It is preferably 20 mm (specifically about 14 mm).

In the present embodiment, as shown in FIG. 2, the flange portion 12 is formed with a protruding portion 12a that partially protrudes radially outward so as to cover the upper surface of the casing 56 of the sensor unit 50, which will be described later. . However, the configuration is not limited to the configuration in which the protruding portion 12a is partially provided, and the width of the entire flange portion 12 may be increased to cover the upper surface of the casing 56 . The material of the flange portion 12 is, for example, synthetic resin or metal.

As shown in FIGS. 2 and 3 , the top plate 30 is formed in a substantially rectangular shape and extends radially of the body portion 11 from a portion of the body portion 11 in the circumferential direction. Specifically, the top plate 30 can be attached to the body portion 11 by screws, for example. Further, the top plate 30 can be separated from the body portion 11 as shown in FIG.

As shown in FIGS. 1 to 4, the terminal block 40 is arranged on the lower surface side of the top plate 30 at the part extending from the body portion 11 of the top plate 30 in the circumferential direction. As shown in FIG. 5, the terminal block 40 has an input terminal block 42 connected to the commercial AC power supply Vs, and a transfer terminal block 44 for connecting the AC power supply to another lighting fixture to be interlocked and controlled. there is The input terminal block 42 is electrically connected to a control unit 70 which will be described later.

The pair of mounting springs 16 are formed of metal plates extending radially outward from the peripheral wall of the body portion 11 . The body portion 11 is attached to an installation surface such as a ceiling by sandwiching the ceiling or the like with a pair of attachment springs 16 and the flange portion 12 . Although the pair of mounting springs 16 can be separated from the body portion 11 as shown in FIG.

In this embodiment, the light source unit 22 is an LED light. The LED light is formed in a flat shape, and includes a substantially cylindrical cylinder 24, a light source (LED) arranged in the cylinder 24, and a base portion formed on one end side (installation surface side) of the cylinder 24. 28 and a protective cover 26 attached to the other end side of the cylindrical body 24 (the side opposite to the installation surface). The cylindrical body 24 is made of, for example, synthetic resin or metal, and the protective cover 26 is made of, for example, a translucent synthetic resin.

2 and 3, the base portion 28 has a projecting portion 28a formed on the upper surface of the cylindrical body 24 and a pair of lamp pins 28b electrically connected to the socket 20. The portion 28a can be attached to the socket 20 by being inserted into the opening 20a of the socket 20 and rotated in a predetermined direction. 2, the light source unit 22 can be separated from the body portion 11 by removing the base portion 28 from the socket 20. As shown in FIG. Note that the light source unit 22 is not limited to this, and any light source unit 22 can be used.

As shown in FIGS. 1 to 5, the sensor unit 50 includes a casing 56 that can be attached to the flange portion 12, a detection portion 52 that detects a specific environment, and a manual operation portion that can change the detection conditions of the detection portion 52. 54. The detection unit 52 is arranged inside the casing 56 , and the manual operation unit 54 is arranged so as to protrude from the surface of the casing 56 . Note that the sensor unit 50 is configured to be separable from the body portion 11, as shown in FIG.

The casing 56 is formed in a box shape and attached to a portion of the flange portion in the circumferential direction. Specifically, as shown in FIG. 4, the casing 56 is arranged at different positions in the circumferential direction of the top plate 30 and the body portion 11 . More specifically, the casing 56 and the top plate 30 are arranged at positions opposite to each other in the circumferential direction of the body portion 11 . The casing 56 slightly protrudes radially outward from the outer peripheral edge of the flange portion 12 when attached to the flange portion 12 .

As shown in FIG. 5, the detection section 52 is electrically connected to the main control section 72 of the control unit 70 and is configured to be able to transmit detection signals. The detection unit 52 has a human sensor 60, an illuminance sensor 62, a receiving sensor 64, and a lens 58 covering these sensors. The human sensor 60 is configured to detect the approach of a human body. The illuminance sensor 62 is configured to detect the brightness around the sensor-equipped downlight 1 . The receiving sensor 64 is configured to receive the control signal transmitted from the remote controller. As shown in FIG. 1, the lens 58 is formed in a convex shape from the end of the casing 56 toward the direction opposite to the mounting surface side of the flange portion 12 . 2, the casing 56 is configured to be separable from the flange portion 12, and the lens 58 is configured to be separable from the casing 56. As shown in FIG. Further, the various sensors included in the detection unit 52 are not limited to the types of sensors described above, and any number of sensors of any type can be provided.

The manual operation unit 54 is configured to be able to change detection conditions such as the lighting time, illuminance, and lighting mode of the LED light of the light source unit 22, for example. In this embodiment, the manual operation unit 54 has a time change switch 60a, an illumination change switch 60b, and a lighting mode change switch 60c. Note that the switches are not limited to these, and any number of switches of any type that can change the detection conditions of the detection unit 52 can be provided.

The time change switch 60a is configured to be able to switch the delay time for turning off the LED light of the light source unit 22 from the time when the human sensor 60 stops detecting the approach of the human body. The time change switch 60a can be set to, for example, "10 seconds", "1 minute", and "10 minutes". In addition, when the time change switch 60 is not provided, the delay time can be fixed and set.

The illuminance change switch 60b is configured to be able to switch the lighting state of the LED light of the light source unit 22 according to the approach of the human body detected by the human sensor 60 and the illuminance sensor 62 and the brightness of the surroundings. The illuminance change switch 60b can be set to, for example, "off", "bright", and "dark". When set to "OFF", the function of the illuminance sensor 62 can be stopped. In other words, regardless of the brightness of the surroundings, the LED light is turned on when the approach of the human body is detected. When set to "bright", the LED light will turn on when the ambient brightness drops to, for example, about 45 lx or less (eg, when it is dim such as in the evening). When set to "dark", the LED lights will turn on when the ambient brightness drops below about 15 lx (eg, when it is dark, such as at night).

The lighting mode change switch 60c is configured to switch the lighting mode of the LED light of the light source unit 22 according to the approach of the human body detected by the human sensor 60 and the illuminance sensor 62 and the brightness of the surroundings. The lighting mode change switch 60c is configured to switch between, for example, "on/off mode" and "dimming mode".

When the "on/off mode" is set, the human sensor 60 is switched on/off according to the brightness of the surroundings. The ambient brightness is linked to the setting of the illuminance change switch 60b. For example, when the surroundings are higher than the setting information value (approximately 45 lx, approximately 15 lx, etc.) of the illuminance change switch 60b, the human sensor 60 is turned off, and the LED light does not turn on even if a human body approaches. When the surroundings are lower than the setting information value (approximately 45 lx, approximately 15 lx, etc.) of the illuminance change switch 60b, the human sensor 60 is turned on, and the LED light is turned on when an approaching human body is detected. After that, when the human sensor 60 no longer detects the approach of the human body, the LED light is turned off after a predetermined period of time (for example, 1 minute).

On the other hand, when the “dimming mode” is set, the LED lights are fully lit, dimmed, or extinguished according to the ambient brightness detected by the illuminance sensor 62 . For example, when the ambient brightness is, for example, approximately 45 lx or more, the human sensor 60 is turned off, and the LED light does not turn on even if a human body approaches. When the ambient brightness drops to, for example, about 45 lx or less (for example, when it is dim such as in the evening), the human sensor 60 is turned on, the LED light is dimmed (for example, 10% lighting), and the human sensor 60 detects the approach of the human body, the LED lights are fully illuminated. After that, when the human sensor 60 stops detecting the approach of the human body, the LED light is dimmed and lit after a predetermined time (for example, 1 minute) has passed.

The control unit 70 is arranged in a space above the socket 20 of the body portion 11, as shown in FIG. Specifically, the control unit 70 is accommodated in an upper space S<b>2 formed by the body portion 11 , the upper surface of the socket 20 , and the lower surface of the top plate 30 . It should be noted that the upper space S2 has a size that can accommodate the control unit 70 . Also, the control unit 70 may be attached to the lower surface of the top plate 30 or may be attached to the upper surface of the socket 20 .

5, the input side of the control unit 70 is electrically connected to the commercial AC power supply Vs via the input terminal block 42, and the output side is electrically connected to the light source unit 22. As shown in FIG. The control unit 70 has a main control section 72 , a time control section 74 , an illuminance control section 76 and a lighting mode control section 78 .

The control unit 70 is electrically connected to the sensor unit 50 , and wiring that electrically connects the sensor unit 50 and the control unit 70 is arranged in the conductive path S<b>3 of the body portion 11 . As shown in FIG. 3, the conduction path S3 is formed in a bulging portion 11a formed by bulging a portion of the peripheral wall of the body portion 11 radially outward.

The main control section 72 is configured to receive a detection signal transmitted from the human sensor 60 of the detection section 52 and determine whether or not a human body has approached. Further, the main control section 72 is configured to be able to acquire the value (lx) of the detection signal using the illuminance sensor 62 of the detection section 52 .

The time control section 74 controls the lighting time of the light source unit 22 according to the time change switch 60a of the manual operation section 54 when the main control section 72 detects a human body. Specifically, the time control unit 74 reads the setting information of the time change switch 60a, and the delay time ("10 seconds, 1 minute, 10 minutes, etc.), and when the set time has elapsed, an instruction to turn off the LED light is sent to the light source unit 22 .

The illuminance control unit 76 acquires and receives the value of the detection signal of the illuminance sensor 62, and turns on the light source unit 22 according to the illuminance change switch 60b of the manual operation unit 54 when the main control unit 72 detects a human body. Control. Specifically, the illuminance control unit 76 reads the setting information of the illuminance change switch 60b, determines whether the value of the setting information (about 45 lx, about 15 lx, etc.) is higher or lower than the value detected by the illuminance sensor 62, If it is lower than the value of the setting information, an instruction to turn on the LED light is sent to the light source unit 22 when the human body detection signal from the human sensor 60 is received. If the value is higher than the numerical value of the setting information, the LED light is not turned on.

The lighting mode control unit 78 acquires the value of the detection signal of the illuminance sensor 62, and turns on the light source unit 22 according to the lighting mode change switch 60c of the manual operation unit 54 when the main control unit 72 detects a human body. control mode. Specifically, the lighting mode control unit 78 reads the setting information of the lighting mode change switch 60c. For example, in the "on/off mode", the setting information of the illuminance change switch 60b is read, and it is determined whether the value of the setting information (about 45 lx, about 15 lx, etc.) is above or below the value detected by the illuminance sensor 62. , and if it is lower than the value of the setting information, an instruction to turn on the LED light is transmitted to the light source unit 22 when the human body detection signal of the human sensor 60 is received. If the value is higher than the numerical value of the setting information, the LED light is not turned on. Also, in the "light control mode", read the setting information of the illuminance change switch 60b, determine whether the value of the setting information (about 45 lx, about 15 lx, etc.) is above or below the value detected by the illuminance sensor 62, If it is lower than the value of the setting information, the LED light is dimmed (e.g., 10% lighting), and when the human sensor 60 detects the approach of the human body, an instruction is sent to the light source unit 22 to turn the LED light on at full brightness. do. If the value is higher than the numerical value of the setting information, the LED light is not turned on.

[Advantages of downlight with sensor according to the present embodiment]
As described above, the sensor-equipped downlight 1 according to the present embodiment can be inserted into the mounting hole 3 formed in the installation surface, and has a housing space S1 capable of housing the light source unit 22; A sensor unit 50 having a flange portion 12 extending radially outward from the lower green portion of the body portion 11 and positioned on the installation surface when installed on the installation surface, and a detection portion 52 for detecting a specific environment. The sensor unit 50 has a casing 56 that can be attached to the flange portion 12 , and the casing 56 is attached to a portion of the flange portion 12 in the circumferential direction.

According to the sensor-equipped downlight 1 according to this embodiment, the casing 56 is attached only to a part of the flange portion 12 in the circumferential direction, so that the flange portion 12 itself can be made thin and small. Also, it is possible to reduce the size of the portion exposed when the downlight 1 is installed on a structure such as a ceiling, and to save the installation space of the sensor-equipped downlight 1 .

Further, the sensor-equipped downlight 1 according to the present embodiment further has a top plate 30 provided at the upper end of the body portion 11 , and the top plate 30 extends from a portion of the body portion 11 in the circumferential direction to the body portion 11 . , and the casing 56 and the top plate 30 are arranged at different positions in the circumferential direction of the body portion 11 . According to the sensor-equipped downlight 1 having such a configuration, it is possible to reduce the risk of the casing 56 interfering with the installation surface when inserting the top plate 30 and the body portion 11 into the mounting holes 3 of the installation surface. becomes.

In addition, in the sensor-equipped downlight 1 according to the present embodiment, the casing 56 and the top plate 30 are arranged at positions opposite to each other in the circumferential direction of the body portion 11, so that the casing 56 and the installation surface are further enhanced. Since the top plate 30 and the body portion 11 can be smoothly inserted into the mounting holes 3 of the installation surface without interference, work efficiency can be improved.

Further, the sensor-equipped downlight 1 according to the present embodiment has the advantage that the terminal block 40 is arranged on the top plate 30, so that the depth of embedment into the ceiling can be suppressed.

Further, the sensor-equipped downlight 1 according to the present embodiment further includes a control unit 70 that controls the light source unit 22, the body portion 11 has a socket 20 for mounting the light source unit 22 in the accommodation space S1, The control unit 70 is arranged in a space above the socket 20 of the body portion 11 . According to the sensor-equipped downlight 1 having such a configuration, parts such as the control unit 70 can be collectively arranged, and the size of the sensor-equipped downlight 1 can be reduced.

Further, in the sensor-equipped downlight 1 according to the present embodiment, a part of the peripheral wall of the body portion 11 protrudes radially outward, and the protruding portion 11a electrically connects the sensor unit 50 and the control unit 70. By forming the conductive path S3 for the wiring, it is possible to efficiently accommodate the wiring that electrically connects the sensor unit 50 and the control unit 70 and prevent the wiring from interfering with other parts. , dead space can be minimized.

[Modification]
Although the preferred embodiments of the present invention have been described above, the technical scope of the present invention is not limited to the scope described in the above-described embodiments. Various modifications or improvements can be added to each of the embodiments described above.

For example, in the above-described embodiment, the control unit 70 is housed in the upper space S2 formed by the upper surface of the body portion 11, the socket 20, and the lower surface of the top plate 30, but is not limited to this. The control unit 70 may be arranged at an arbitrary position outside the upper space S2.

Further, in the above-described embodiment, the terminal block 40 is a portion extending from a part of the body portion 11 of the top plate 30 in the circumferential direction and is arranged on the installation surface side of the top plate 30. However, it is not limited to this, and may be installed so as to be positioned within the upper space S<b>2 of the body portion 11 .

It is clear from the description of the scope of claims that modifications such as those described above are included in the scope of the present invention.

Reference Signs List 1: Sensor-equipped downlight 3: Mounting hole 10: Instrument body 11: Body portion 11a: Bulging portion 12: Flange portion 12a: Protruding portion 16: Mounting spring 18: Partition portion 20: Socket 20a: Opening portion 22: Light source unit 24: Cylindrical body 26: Protective cover 28: Base part 28a: Protruding part 28b: Lamp pin 30: Top plate 40: Terminal block 42: Input terminal block 44: Transfer terminal block 50: Sensor unit 52: Detector 54: Manual Operation unit 56: casing 58: lens 60: human sensor 60a: time change switch 60b: illuminance change switch 60c: lighting mode change switch 62: illuminance sensor 64: reception sensor 70: control unit 72: main control unit 74: time control Unit 76: Illuminance control unit 78: Lighting mode control unit S1: Accommodating space S2: Upper space S3: Conducive path

Claims (7)

a body portion that can be inserted into a mounting hole formed in the installation surface and that has a housing space capable of housing the light source unit;
a flange portion extending radially outward from the lower green portion of the body portion and positioned on the installation surface when installed on the installation surface;
A sensor unit having a detection unit that detects a specific environment,
The sensor unit includes a casing that can be attached to the flange,
The sensor-equipped downlight, wherein the casing is attached to a part of the flange portion in the circumferential direction. further comprising a top plate provided at the upper end of the body,
The top plate extends from a portion of the body in the circumferential direction in the radial direction of the body,
The sensor-equipped downlight according to claim 1, wherein the casing and the top plate are arranged at different positions in the circumferential direction of the body. The sensor-equipped downlight according to claim 2, wherein the casing and the top plate are arranged at positions opposite to each other in the circumferential direction of the body. The sensor-equipped downlight according to claim 2 or 3, further comprising a terminal block arranged on the top plate. further comprising a control unit that controls the light source unit;
the body has a socket in the housing space for mounting the light source unit;
The sensor-equipped downlight according to any one of claims 1 to 4, wherein the control unit is arranged in a space above the socket of the body. A part of the peripheral wall of the body portion bulges outward in the radial direction, and the bulging portion forms a conducting path for wiring that electrically connects the sensor unit and the control unit. The sensor-equipped downlight according to claim 5. The sensor-equipped downlight according to any one of claims 1 to 6, wherein the sensor unit has a manual operation section capable of changing detection conditions of the detection section.

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